Field of the Invention
[0001] The present invention generally relates to fitness bars or barbells used for muscular
strength training.
Background of the Invention
[0002] Strength training is a type of physical exercise specializing in the use of resistance
to induce muscular contraction which builds the strength, the anaerobic endurance
and the size of skeletal muscles. Strength training provides significant functional
benefits and improvement in overall health and well-being, including increased bone,
muscle, tendon, and ligament strength and toughness, improved joint function, reduced
potential for injury, increased bone density, increased metabolism, increased fitness
and improved cardiac function. Training commonly uses the technique of progressively
increasing the force output of the muscle through incremental weight increases and
uses a variety of exercises and types of equipment to target specific muscle groups.
[0003] Sports where strength training is of high importance are bodybuilding, weightlifting,
powerlifting, strongman, Highland games, shot put, discus throw, and javelin throw.
Many other sports use strength training as part of their training regimen, such as
for example tennis, American football, wrestling, track and field, rowing, lacrosse,
basketball, pole dancing, hockey, professional wrestling, rugby union, rugby league,
and soccer. Strength training for other sports and physical activities is becoming
increasingly popular.
[0004] When it comes to strength training, barbells are efficient tools. Barbells functionally
challenge the muscles, the joints, and the balance all at once, which research has
proven can lead to significant strength gains compared to traditional exercises. A
barbell is a piece of exercise equipment used in weight training, bodybuilding, weightlifting
and powerlifting, wherein the barbell comprises a bar and usually further comprises
weights attached at each end of the bar. For example, weight plates can be slid onto
the outer portions of the bar to increase or decrease the desired total weight. A
men's Olympic bar typically comprises a 2m20 long metal bar, for example a steel bar,
with grooved or knurled handgrips. A women's Olympic bar is similar to a men's bar
but is typically shorter with a smaller grip section diameter. Olympic bars demonstrate
a suitable whip, i.e. an ability to store elastic energy, and they can support incremental
weight plates at both ends up to a total of 220kg. Collars are used to prevent plates
from moving outward unevenly so that the lifter does not experience uneven force.
[0005] Specialty barbells come in all shapes and sizes which adds variety to the training
and allows working around muscular limitations or injuries. Other strength training
bars, such as for example a Standard bar, a Squat bar, a Deadlift bar, a Bench Press
bar, etc. differ from the Olympic fitness bar in length, thickness of the handgrips,
cross-section of the bar, etc.. Bars comprising vertical handles also exist, such
as for example a trap bar, a Swiss bar, a EZ Curl bar, etc., and are for example used
to make strength exercising easier on the joints, for example by making exercises
more shoulder-friendly.
[0006] Even though existing bars are designed to train weightlifting and bench pressing,
each bar can only be used for a limited number of exercises, and each exercise only
trains a limited number of muscles. For example, a bench press is typically used for
training strength of chest muscles, while a barbell is typically used for training
strength of shoulders and arm and legs muscles, while a pull up bar is typically used
for training strength of abdominal muscles. In other words, a wide variety of equipment
is necessary to train several muscles and/or to perform many training exercises. Additionally,
strength training bars usually demonstrate standardized designs such that one bar
fits several morphologies and such that multiple users may perform training exercises
with the same bar. This results in a lack of flexibility of the equipment used for
strength training. Also, the fact that each bar fits several morphologies limits the
ergonomics of the strength training bars.
[0007] It is an objective of the present invention to disclose a device that overcomes the
above identified shortcomings of existing solutions. More particularly, it is an objective
to disclose a strength training bar which can be used for a great variety of training
exercises and which enables training a greater variety of muscles in the upper and/or
in the lower body through multiple training exercises, while remaining compatible
with weight plates and lifting racks that already exist in fitness and training and
sporting centres.
Summary of the Invention
[0008] According to a first aspect of the present invention, the above defined objectives
are realized by a strength training bar comprising:
- a bar, extending along a longitudinal direction and adapted to support weights;
- at least two handgrips, adapted to rotate with respect to the bar and to be fixable
in a releasable manner to the bar in multiple predetermined rotating positions with
respect to the bar; each of the at least two handgrips further being adapted to be
fixable in a releasable manner at multiple predetermined translational positions along
the longitudinal direction of the bar.
[0009] The strength training bar according to the present invention can be used to exercise
a plurality of muscles via a plurality of training exercises. To each training exercise
correspond a predetermined rotating position and/or a predetermined translational
position of the handgrips of the strength training bar. In other words, only one strength
training bar according to the present invention is necessary to exercise different
muscles and/or to perform several training exercises, wherein each training exercise
trains one or more muscles. For example, the strength training bar according to the
present invention can be used to exercise muscles from the upper body and/or to exercise
muscles from the lower body, for example by lifting the strength training bar and
performing bending movements of the arms and/or of the legs carrying or supporting
the weight of the strength training bar. This improves the efficiency of an exercising
session during which a user of the strength training bar according to the present
invention can exercise the strength of several muscles using only one fitness bar.
[0010] Each predetermined rotating position and each predetermined translational position
corresponds to specific muscles that are trained when using the strength training
bar with handgrips at these respective positions.
[0011] The design of the strength training bar according to the present invention brings
several advantages. First, the design of the strength training bar is made flexible
and can be modified thanks to the presence of handgrips which are fixable to the bar
in multiple predetermined rotating positions and at multiple predetermined translational
positions along the bar. In other words, the position of the handgrips on the bar
and their inclinations with respect to the bar can be adapted and adjusted such that
one user of the strength training bar according to the present invention exercises
multiple muscles, and also such that multiple users of a single strength training
bar according to the present invention can exercise multiple muscles using the same
strength training bar. The strength training bar according to the present invention
fits different users. This allows multiple users to exercise with the same strength
training bar even though they do not have for example the same shoulder span or the
same shoulder breadth or the same need to train the same muscles via the same training
exercises. The design of the strength training bar according to the present invention
therefore allows a flexible personalization of strength training bar to the morphology
of the user of the bar by allowing the user to rotate the handgrips to different predetermined
rotating positions with respect to the bar and/or to translate the handgrips to different
predetermined translational positions along the bar, thereby adapting the design strength
training bar to his/her morphology. This improves the ergonomics of the strength training
bar, this brings comfort to all the users of the strength training bar during their
respective exercising sessions and this also reduces the risk of injuries during exercising
sessions as it is easy to modify the position of the handgrips on the bar to exercise
different muscles.
[0012] The strength training bar according to the present invention is further compatible
with weights and lifting racks which already exist in fitness centers and sporting
centres. The strength training bar according to the present invention further complies
with safety requirements of sporting centres.
[0013] A strength training bar according to the present invention is for example a barbell,
a Standard bar, a Squat bar, a Deadlift bar, a Bench Press bar, an Olympic fitness
bar, a trap bar, a Swiss bar, a EZ Curl bar, etc.. A strength training bar is for
example a fitness bar, i.e. a bar used for strength training in fitness centers, in
gyms or sporting centres.
[0014] The handgrips are fixed to the bar in a releasable manner such that the handgrips
remain in a fixed position at a predetermined translational position and in a predetermined
rotating position during an exercise, and each handgrip is releasable from the predetermined
translational position and the predetermined rotating position in between two exercises
such that each handgrip can be fixed to the bar in a different predetermined translational
position and/or in a different predetermined rotating position. The handgrips can
be fixed in a releasable manner independently from each other in predetermined rotating
positions and/or at predetermined translational positions. Alternatively, the handgrips
can rotate with respect to the bar in a coordinated movement with respect to each
other and/or the handgrips can translate along the bar in a coordinated movement with
respect to each other. For example, the handgrips can be rotated with respect to the
bar in a mirror movement with each other with respect to the middle of the bar. For
example, the handgrips can be translated with respect to the bar in a mirror movement
with each other with respect to the middle of the bar. The handgrips for example can
slide along the longitudinal direction of the bar. The handgrips for example can slide
independently from one another along the longitudinal direction of the bar. Alternatively,
the handgrips can be released from the bar and slide in a coordinated movement with
respect to each other. For example, the handgrips can be released from the bar and
slide with respect to the bar in a mirror movement with each other with respect to
the middle of the bar. Alternatively, the handgrips can be separated from the bar
and each handgrip can be repositioned at a different predetermined translational position.
[0015] According to an optional aspect of the invention, each of the handgrips is fixable
in a releasable manner in four different predetermined rotating positions with respect
to the bar.
[0016] Each predetermined rotating position and each predetermined translational position
corresponds to specific muscles that are trained when using the strength training
bar with handgrips at these respective positions.
[0017] According to an optional aspect of the invention:
- each of the at least two handgrips is adapted to rotate around an axis traverse the
longitudinal direction;
- the multiple predetermined rotating positions correspond to an angle of:
∘ 0 degree;
∘ 45 degrees;
∘ 90 degrees;
∘ -45 degrees;
formed between each of the at least two handgrips and the longitudinal direction when
each of the at least two handgrips is fixed in a releasable manner to the bar.
[0018] This way, each handgrip can be fixed to the bar in a releasable manner traverse to
the longitudinal direction of the bar when the handgrip is fixed such that the angle
formed between the handgrip and the longitudinal direction is equal to 90 degrees.
For example, with handgrips under an angle of 0 degree with respect to the longitudinal
direction of the bar, a user of the bar exercises his/her biceps and his/her triceps.
Each handgrip can be fixed to the bar in a releasable manner parallel to the longitudinal
direction of the bar when the handgrip is fixed such that the angle formed between
the handgrip and the longitudinal direction is equal to 0 degree. For example, with
handgrips under an angle of 0 degree with respect to the longitudinal direction of
the bar, a user of the bar exercises his/her biceps and his/her triceps. Alternatively,
each handgrip can be fixed to the bar in a releasable manner under an angle of 45
degrees with respect to the longitudinal direction of the bar when the handgrip is
fixed such that the angle formed between the handgrip and the longitudinal direction
is equal to +/-45 degrees. For example, with handgrips under an angle of +/-45 degrees
with respect to the longitudinal direction of the bar, a user of the bar exercises
his/her biceps and his/her dorsal muscles. Each predetermined rotating position corresponds
to specific muscles that are trained when using the strength training bar with handgrips
at these respective predetermined rotating positions.
[0019] According to an optional aspect of the invention, the bar comprises:
- a first bar end, adapted to support one or more weights;
- a second bar end, adapted to support one or more weights;
- a middle bar section comprising an oval shape, wherein the oval shape extends along
the longitudinal direction; and wherein the middle bar section is connected on a first
end to the first bar end and connected on a second end opposite to the first end to
the second bar end; and wherein the middle bar section comprises bar punch holes formed
at the multiple predetermined sliding positions along the bar, wherein the bar punch
holes are adapted to receive a locking pin;
and wherein each of said at least two handgrips comprises:
- a handgrip profile, wherein an outer diameter of the handgrip profile fits the oval
shape of the middle bar section; and wherein the outer diameter of the handgrip profile
comprises handgrip punch holes, each of the handgrip punch holes being adapted to
receive a locking pin; and
- a handle fitting the handgrip profile.
[0020] This way, the strength training bar comprises a middle bar section comprising an
oval shape in which at least two handgrips fit. Each handgrip can further translate
along the longitudinal directional of the bar in the oval shape of the middle bar
section. In other words, the oval shape of the middle bar section forms a guide along
which the handgrips of the strength training bar can translate. The bar punch holes
are distributed along the entire length of the oval shape of the middle bar section.
The handgrip punch holes are defined such that at least one handgrip punch hole coincides
with at least one bar punch hole of the oval shape of the middle bar section such
that the handgrip can be fixed in a releasable manner to the middle bar section when
a locking pin is inserted in the punch holes. Additionally, the oval shape of the
middle bar section brings stiffness and mechanical strength to the strength training
bar and makes the strength training bar compatible with lifting racks already existing
in fitness centers. One or more weights can be supported on each end of the bar along
the longitudinal direction, thereby distributing the weights along the longitudinal
direction of the bar.
[0021] According to an optional aspect of the invention:
- each of the handgrip profiles is adapted to be translated in the oval shape along
the longitudinal direction of the bar; and
- each of the handgrip profiles is adapted to be fixed in a releasable manner to the
bar at multiple predetermined translational positions along the longitudinal direction.
[0022] This way, each handgrip profile can rotate with respect to the longitudinal direction
and can be translated along the longitudinal direction and can be fixed in a releasable
manner at each predetermined translational position along the bar in a predetermined
rotation position, thereby offering a broad arrangement possibility of the handgrips
and a broad scope of exercises. Alternatively, each handgrip profile can be fixed
in a releasable manner at each predetermined translational position along the bar
in particular predetermined rotation positions, thereby focusing on the exercise of
a particular set of muscles and/or focusing on a particular set of exercises. Each
of the handgrip profiles is for example adapted to slide in the oval shape along the
longitudinal direction of the bar.
[0023] According to an optional aspect of the invention:
- each of the handgrip profiles comprises a regular, octagonal profile;
- the handgrip punch holes are formed in each side of the regular, octagonal profile;
and
- each of the handles is fixed onto the respective regular, octagonal profile such that
the handle interconnects two opposite sides of the regular, octagonal profile.
[0024] Alternatively, each of the handgrip profiles comprises an octagonal profile. The
handgrip punch holes are for example formed in the middle of each side of the regular,
octagonal profile. Alternatively, the handgrip punch holes are for example formed
on each apex of the regular, octagonal profile. Each of the handles is fixed onto
the respective regular, octagonal profile such that the handle interconnects the middle
of two opposite sides of the regular, octagonal profile. This way, the handgrips demonstrate
structural and mechanical strength which resists the weight of the bar supporting
weights when a user lifts the bar and performs flexion exercises while carrying the
strength training bar. The handles can be used to make their respective handgrip profiles
rotate with respect to the longitudinal direction of the bar.
[0025] According to an optional aspect of the invention, the handgrip punch holes are formed
such that each of the handgrip profiles is fixed in a releasable manner to the bar
in one of said multiple predetermined rotating positions with respect to the bar when
one of the handgrip punch holes coincides with one of the bar punch holes and when
a locking pin fits in the handgrip punch hole coinciding with one of the bar punch
holes.
[0026] This way, each handgrip can be securely fixed in a releasable manner in a predetermined
rotating position and at a predetermined translational position when a locking pin
is inserted in a handgrip punch hole coinciding with a bar punch hole. This ensures
the handgrips do not rotate with respect to the longitudinal direction of the bar
nor translate along the longitudinal direction of the bar during a strength training
exercise. This minimizes the risk of injuries.
[0027] According to an optional aspect of the invention:
- each outer diameter of the handgrip profiles is adapted to translate in the oval shape
of the middle bar section along the longitudinal direction of the bar;
- each of the handgrip profiles further comprises:
∘ a rotating ring adapted to rotate with respect to the outer diameter of the handgrip
profile; wherein the rotating ring comprises an outer ring diameter comprising semi-circular
protrusions;
∘ a plurality of actuating means fixed to the respective handgrip profile between
the outer ring diameter and the outer diameter;
∘ a plurality of locking pins; wherein each locking pin is fixed to one of the actuating
means; and wherein each locking pin fits in the handgrip punch holes;
- each of the handles is fixed on to the handgrip profile such that the handle interconnects
two opposite handgrip punch holes of the outer diameter;
- each of the handgrip profiles further comprises a locking mechanism, wherein the locking
mechanism is adapted to:
∘ allow the respective handgrip profile to translate in the oval shape along the longitudinal
direction of the bar when the rotating ring is rotated with respect to the outer diameter
such that the semi-circular protrusions are positioned between two consecutive handgrip
punch holes, thereby allowing the actuating means to pull the locking pins inwards
such that the locking pins are released from the handgrip punch holes;
∘ fix the respective handgrip profile in a releasable manner at one of the multiple
predetermined translational positions along the longitudinal direction of said bar
and in one of the predetermined rotating positions with respect to the bar when the
rotating ring is rotated with respect to the outer diameter such that the semi-circular
protrusions push the actuating means outwards such that the locking pins fit through
the handgrip punch holes.
[0028] This way, translating the handgrip profiles and/or rotating the handgrip profiles
is made easy. Modifying the position of the handgrips of the strength training bar
is made semi-automatic. All the locking pins of a handgrip profile can be indeed simultaneously
released from the handgrip punch holes and the bar punch holes, thereby releasing
the handgrip profile at once from the bar by actuating the locking mechanism which
allows the handgrip profile to translate along the longitudinal direction of the bar.
This allows a user of the strength training bar to fully enjoy the adaptive and flexible
character of the strength training bar according to the present invention. The semi-circular
protrusions are regularly defined along the outer ring diameter of the rotating ring.
The handgrip punch holes are for example periodically distributed along the outer
diameter of the handgrip, and the semi-circular protrusions are distributed along
the outer ring diameter according to the same period than the handgrip punch holes
along the outer diameter. Alternatively, the handgrip profiles comprise a plurality
of springs between the outer ring diameter and the outer diameter, wherein the springs
are adapted to pull the locking pins inwards thereby releasing the locking pins are
the handgrip punch holes when the semi-circular protrusions are positioned between
two consecutive handgrip punch holes in an unlocked state of the locking mechanism,
and wherein the semi-circular protrusions are further adapted to push the springs
such that the springs push the locking pins in the handgrip punch holes when the semi-circular
protrusions coincide with the handgrip punch holes in a locked state of the locking
mechanism.
[0029] According to an optional aspect of the invention, each of the handgrip profiles further
comprises a locking through path adapted to host a respective locking mechanism; and
wherein each of the locking mechanisms comprises a bistable locking mechanism.
[0030] This way, the handgrip profiles are securely fixed to the bar at a predetermined
translational position and in a predetermined rotating position when a user of the
strength training bar uses it. With the bistable locking mechanism, the risk that
the handgrips of the strength training bar translate and/or rotate during exercise
is minimized as the locking mechanism fixes the respective handgrip. This reduces
the risk of injuries during exercise.
[0031] Bistability is understand as work done on the bistable locking mechanism to move
it just past the peak, at which point the bistable locking mechanism goes "over centre"
to its secondary stable position. The result is a toggle-type action- work applied
to the bistable locking mechanism below a threshold sufficient to send it 'over center'
results in no change to the mechanism's state. Springs are a known method of achieving
an "over centre" action. A spring attached to a simple two position ratchet-type mechanism
can create a bistable locking mechanism that is clicked or toggled between two mechanical
states.
[0032] According to an optional aspect of the invention, the locking through path comprises
a locking point and a locking guide connected to the locking point; and wherein each
of the bistable locking mechanisms comprises:
- a knob;
- a spring adapted to translate between the locking point and the locking guide in the
locking through path;
- a locking ring arranged between the knob and the spring, adapted to:
∘ fit in a releasable manner in the locking point when the rotating ring is rotated
with respect to the outer diameter such that the semi-circular protrusions push the
actuating means outwards such that the locking pins fit through the handgrip punch
holes, thereby fixing the handgrip profile in a releasable manner to the bar in one
of the predetermined rotating positions with respect to the bar and at one of the
predetermined translational positions along the longitudinal direction of the bar;
∘ rest in a releasable manner on the locking guide when the rotating ring is rotated
with respect to the outer diameter such that the semi-circular protrusions are positioned
between two consecutive handgrip punch holes, thereby allowing the actuating means
to pull the locking pins inwards such that the locking pins are released from the
handgrip punch holes, thereby allowing the handgrip profile to rotate with respect
to the bar and to be translated along the longitudinal direction of the bar.
[0033] According to an optional aspect of the invention, each of the at least two handgrips
comprises:
- a translational section adapted to translate along the longitudinal directional of
the bar and further adapted to be fixed to the bar in a releasable manner at the multiple
predetermined translational positions along the longitudinal direction;
- a base section adapted to be fixed onto the translational section in a releasable
manner in multiple predetermined rotating positions with respect to the bar; and wherein
the base section is further adapted to support one or more weights; and
- a handle fixedly mounted onto the base section.
[0034] This way, each translational section can translate along the longitudinal directional
of the bar. In other words, the bar forms a translation guide along which the translational
sections of the strength training bar can translate. One or more weights can be supported
on base section. Each handle is fixedly mounted onto the base section. This ensures
the handles do not rotate with respect to the longitudinal direction of the bar nor
translate along the longitudinal direction of the bar during a strength training exercise.
This minimizes the risk of injuries.
[0035] According to an optional aspect of the invention:
- the bar comprises a plurality of translational engagement recesses formed at the multiple
predetermined translational positions along the bar, each translational engagement
recess being adapted to fit a translation locking pin; and
- each of the translational sections comprises a translation locking pin, adapted to
engage in a releasable manner in the translational engagement recesses of the bar,
thereby fixing said respective translational section to the bar in a releasable manner
at one of the predetermined translational positions along the longitudinal direction
when the translation locking pin fits in one of the translational engagement recesses.
[0036] The translational engagement recesses are evenly distributed along the entire length
of the bar. Alternatively, the translational engagement recesses are closer to each
other close to the middle of the strength training bar. The translation locking pin
fits in every translational engagement recess, thereby securely fixing in a releasable
manner its respective translational section to the bar. For example, the translational
sections are clicked onto the bar.
[0037] According to an optional aspect of the invention:
- each of the base section further comprises a rotation locking pin; and
- each of the translational sections further comprises punch holes adapted to receive
a rotation locking pin of the respective base section, wherein the punch holes are
formed such that an angle of:
∘ 0 degree;
∘ 45 degrees;
∘ 90 degrees;
∘ -45 degrees;
is formed between the handle and the longitudinal direction when a rotation locking
pin of the respective base section engages in a releasable manner in one of the punch
holes, thereby fixing the respective base section to the translational section in
a releasable manner in one of the predetermined rotating positions with respect to
the bar.
[0038] This way, each base section can be fixed onto a respective translational section
in a releasable manner such that the angle formed between the handle and the longitudinal
direction is equal to 90 degrees. For example, the base sections are clipped onto
the respective translational sections when a rotation locking pin of the respective
base section engages in a releasable manner in one of the punch holes of the respective
translational section. With handles under an angle of 0 degree with respect to the
longitudinal direction of the bar, a user of the bar for example exercises his/her
biceps and his/her triceps. Each base section can be fixed onto a respective translational
section in a releasable manner such that the angle formed between the handle and the
longitudinal direction is equal to 0 degree. For example, with handles under an angle
of 0 degree with respect to the longitudinal direction of the bar, a user of the bar
exercises his/her biceps and his/her triceps. Alternatively, each handle can be fixed
to the bar in a releasable manner under an angle of 45 degrees with respect to the
longitudinal direction of the bar when the handle is fixed such that the angle formed
between the handle and the longitudinal direction is equal to +/-45 degrees. For example,
with handles under an angle of +/-45 degrees with respect to the longitudinal direction
of the bar, a user of the bar exercises his/her biceps and his/her dorsal muscles.
Each predetermined rotating position corresponds to specific muscles that are trained
when using the strength training bar with handles at these respective predetermined
rotating positions.
[0039] According to an optional aspect of the invention, the bar has a circular cross-section.
[0040] This makes the strength training bar compatible with weight plates and lifting racks
already existing in fitness centers.
[0041] According to an optional aspect of the invention, the bar has a triangular cross-section.
[0042] This makes the strength training bar compatible with weight plates and lifting racks
already existing in fitness centers.
[0043] According to an optional aspect of the invention, the strength training bar further
comprises one or more locking pins.
[0044] According to an optional aspect of the invention, the strength training bar further
comprises one or more weights.
[0045] According to a second aspect of the invention, there is provided a use of a strength
training bar according to a first aspect of the invention for training strength, wherein:
- each of the handgrips is set in a predetermined rotating position with respect to
the bar by rotating the handgrip with respect to the bar and by fixing the handgrip
in a releasable manner to the bar in the predetermined rotating position;
- each of the handgrips is further set in a predetermined translational position along
the longitudinal direction of the bar by translating the handgrip along the longitudinal
direction of the bar and by fixing the handgrip in a releasable manner to the bar
in the predetermined translational position.
Brief Description of the Drawings
[0046]
Fig. 1 schematically illustrates an embodiment of a strength training bar according
to the present invention. Fig. 1A schematically represents a front view, while Fig.
1B schematically represents a top view and Fig. 1C schematically represents a side
view of a strength training bar according to the present invention. Fig. 1D schematically
represents a front view of a handgrip profile. Fig. 1E schematically represents a
side view of a strength training bar according to the present invention.
Fig. 2A and 2B respectively schematically illustrates the magnitude of the displacement
and of the stress of a strength training bar according to the present invention which
comprises one or more weights.
Fig. 3 schematically illustrates an embodiment of a strength training bar according
to the present invention.
Fig. 4A schematically illustrates an embodiment of a handgrip according to the present
invention. Fig. 4B schematically illustrates an embodiment of a bar according to the
present invention.
Fig. 5 schematically illustrates an embodiment of a handgrip according to the present
invention.
Fig. 6 schematically illustrates an embodiment of a translational section according
to the present invention.
Fig. 7 schematically illustrates an embodiment of a strength training bar according
to the present invention.
Fig. 8A, 8B and 8C schematically illustrate an embodiment of a bistable locking mechanism
according to the present invention.
Fig. 9A and 9B schematically illustrate an embodiment of a rotating ring and an actuating
means according to the present invention.
Fig. 10 schematically illustrates a cross-section of an embodiment of a fixed strength
training bar according to the present invention.
Fig. 11 schematically illustrates a cross-section of an embodiment of a released strength
training bar according to the present invention.
Detailed Description of Embodiment(s)
[0047] According to an embodiment shown in Fig. 1A, a strength training bar 1 comprises
a bar 100 extending along a longitudinal direction 10 and adapted to support weights.
The strength training bar 1 further comprises two handgrips 201;202 which each comprise
handles 212 which can rotate with respect to the bar 100 and which can be fixed in
a releasable manner to the bar in multiple predetermined rotating positions 301 with
respect to the bar 100. Each of the two handgrips 201;202 can be fixed in a releasable
manner at multiple predetermined translational positions 302 along the longitudinal
direction 10 of the bar 100. For example, each of the two handgrips 201;202 can be
fixed in a releasable manner in four different predetermined rotating positions 301
with respect to the bar 100. Each of the handles 212 of the handgrips 201;202 can
rotate around an axis 20 traverse to the longitudinal direction 10. The multiple predetermined
rotating positions 301 correspond to an angle 31 formed between each of the handles
212 of the handgrips 201;202 and the longitudinal direction 10 when each of the two
handles 212 of the handgrips 201;202 is fixed in a releasable manner to the bar 100.
In Fig. 1A, the handgrip 202 is fixed in a releasable manner to the bar 100 such that
an angle 31 equal to -45 degrees is formed between the handle 212 of the handgrip
202 and the longitudinal direction 10. According to alternative embodiments, the angle
31 formed between the handgrips 201;202 and the longitudinal direction 10 can be 0
degree, 45 degrees, 90 degrees or -45 degrees with respect to the longitudinal direction
10. The bar 100 comprises a first bar end 101 adapted to support weights, a second
bar end 102 adapted to support weights, and a middle bar section 103 which comprises
an oval shape 104. The oval shape 104 extends along the longitudinal direction 10.
The oval shape 104 is connected on a first end 131 to the first bar end 101 and on
a second end 132 opposite to the first end 131 to the second bar end 102. Each handgrip
201;202 comprises a handgrip profile 211 wherein an outer diameter 21 of the handgrip
profile 211 fits the oval shape 104 of the middle bar section 103. Each handgrip 201;202
further comprises a handle 212 which fits the handgrip profile 211. Each handgrip
profile 211 can slide in the respective oval shape 104 along the longitudinal direction
10 of the bar 100. Each handgrip profile 211 can be fixed in a releasable manner to
the bar 100 at multiple predetermined translational positions 302 along the longitudinal
direction 10. Each of the handgrip profiles comprises a regular, octagonal profile
221. Each handle 212 is fixed onto the respective regular, octagonal profile 221 such
that the handle 212 interconnects two opposite sides 222 of the regular, octagonal
profile 221. The bar 100 has a circular cross-section. According to an alternative
embodiment, the bar 100 has a triangular cross-section. According to a further alternative
embodiment, the strength training bar 1 comprises one or more weights.
[0048] According to an embodiment shown in Fig. 1B, which schematically illustrates a top
view of the embodiment shown in Fig. 1A, a strength training bar 1 comprises a bar
100 extending along a longitudinal direction 10 and adapted to support weights. The
strength training bar 1 further comprises two handgrips 201;202 which can rotate with
respect to the bar 100 and which can be fixed in a releasable manner to the bar in
multiple predetermined rotating positions with respect to the bar 100. Each of the
two handgrips 201;202 can be fixed in a releasable manner at multiple predetermined
translational positions 302 along the longitudinal direction 10 of the bar 100. For
example, each of the two handgrips 201;202 can be fixed in a releasable manner in
four different predetermined rotating positions 301 with respect to the bar 100. Each
of the handgrips 201;202 can rotate around an axis 20 traverse to the longitudinal
direction 10. The bar 100 comprises a first bar end 101 adapted to support weights,
a second bar end 102 adapted to support weights, and a middle bar section 103 which
comprises an oval shape 104. The oval shape 104 extends along the longitudinal direction
10. The oval shape 104 is connected on a first end 131 to the first bar end 101 and
on a second end 132 opposite to the first end 131 to the second bar end 102. Each
handgrip 201;202 comprises a handgrip profile 211 wherein an outer diameter 21 of
the handgrip profile 211 fits the oval shape 104 of the middle bar section 103. Each
handgrip 201;202 further comprises a handle 212 which fits the handgrip profile 211.
Each handgrip profile 211 can slide in the respective oval shape 104 along the longitudinal
direction 10 of the bar 100. Each handgrip profile 211 can be fixed in a releasable
manner to the bar 100 at multiple predetermined translational positions 302 along
the longitudinal direction 10. Each of the handgrip profiles comprises a regular,
octagonal profile 221. Each handle 212 is fixed onto the respective regular, octagonal
profile 221 such that the handle 212 interconnects two opposite sides 222 of the regular,
octagonal profile 221. The bar 100 has a circular cross-section. According to an alternative
embodiment, the bar 100 has a triangular cross-section. According to a further alternative
embodiment, the strength training bar 1 comprises one or more weights. The middle
bar section 103 comprises bar punch holes 401 formed at the multiple predetermined
translational positions 302 along the bar 100. The bar punch holes 401 are through
holes 401. The bar punch holes 401 are adapted to receive a locking pin 500. Also,
the handgrip profile 211 comprises handgrip punch holes 402. The handgrip punch holes
402 are through holes. The handgrip punch holes 402 are adapted to receive a locking
pin 500. The handgrip punch holes 402 are formed on each handgrip profile 211 in each
side 222 of the regular, octagonal profile 221. The handgrip punch holes 402 are formed
such that each of the handgrip profiles 221 is fixed in a releasable manner to the
bar 100 in one of the multiple predetermined rotating positions 301 with respect to
the bar 100 when one of the handgrip punch holes 402 coincides with one of the bar
punch holes 401 and when a rotating locking pin 500 fits in the handgrip punch hole
402 coinciding with one of the bar punch holes 401.
[0049] According to an embodiment shown in Fig. 1C, which schematically illustrates a side
view of the embodiment shown in Fig. 1A, a strength training bar 1 comprises a bar
100 extending along a longitudinal direction 10 and adapted to support weights. The
strength training bar 1 further comprises two handgrips 201;202 which can rotate with
respect to the bar 100 and which can be fixed in a releasable manner to the bar in
multiple predetermined rotating positions 301 with respect to the bar 100. For example,
the handles 212 of the handgrips 201;202 can be rotated with respect to their respective
handgrip profiles 211 and with respect to the longitudinal direction 10 of the bar
100. This way, each handle 212 can be fixed in a releasable manner to the bar 100
in multiple predetermined rotating positions 301 with respect to the longitudinal
direction of the bar 100. Alternatively, the handgrips can be unmounted and removed
from the oval section 104 of the strength training bar 100 and therefore from one
first predetermined translational position and/or from one first predetermined rotating
position, and further repositioned at a second translational position and/or at a
second predetermined rotating position on the strength training bar wherein the second
translational position and/or the second predetermined rotating position are different
from the first ones. Each of the two handgrips 201;202 can be fixed in a releasable
manner at multiple predetermined translational positions 302 along the longitudinal
direction 10 of the bar 100. For example, each of the two handgrips 201;202 can be
fixed in a releasable manner in four different predetermined rotating positions 301
with respect to the bar 100. Each of the handgrips 201;202 can rotate around an axis
20 traverse to the longitudinal direction 10. The multiple predetermined rotating
positions 301 correspond to an angle 31 formed between each of the handgrips 201;202
and the longitudinal direction 10 when each of the two handgrips 201;202 is fixed
in a releasable manner to the bar 100. In Fig. 1C, the handgrip 201 is fixed in a
releasable manner to the bar 100 such that an angle 31 equal to 45 degrees is formed
between the handle 212 of the handgrip 201 and the longitudinal direction 10. In Fig.
1C, the handgrip 202 is fixed in a releasable manner to the bar 100 such that an angle
31 equal to -45 degrees is formed between the handle 212 of the handgrip 202 and the
longitudinal direction 10. According to alternative embodiments, the angle 31 formed
between the handgrips 201;202 and the longitudinal direction 10 can be 0 degree, 45
degrees, 90 degrees or -45 degrees with respect to the longitudinal direction 10.
The bar 100 comprises a first bar end 101 adapted to support weights, a second bar
end 102 adapted to support weights, and a middle bar section 103 which comprises an
oval shape 104. The oval shape 104 extends along the longitudinal direction 10. The
oval shape 104 is connected on a first end 131 to the first bar end 101 and on a second
end 132 opposite to the first end 131 to the second bar end 102. Each handgrip 201;202
comprises a handgrip profile 211 wherein an outer diameter 21 of the handgrip profile
211 fits the oval shape 104 of the middle bar section 103. Each handgrip 201;202 further
comprises a handle 212 which fits the handgrip profile 211. Each handgrip profile
211 can slide in the respective oval shape 104 along the longitudinal direction 10
of the bar 100. Each handgrip profile 211 can be fixed in a releasable manner to the
bar 100 at multiple predetermined translational positions 302 along the longitudinal
direction 10. Each of the handgrip profiles comprises a regular, octagonal profile
221. Each handle 212 is fixed onto the respective regular, octagonal profile 221 such
that the handle 212 interconnects two opposite sides 222 of the regular, octagonal
profile 221. The bar 100 has a circular cross-section. According to an alternative
embodiment, the bar 100 has a triangular cross-section. According to a further alternative
embodiment, the strength training bar 1 comprises one or more weights. The middle
bar section 103 comprises bar punch holes 401 formed at the multiple predetermined
translational positions 302 along the bar 100. The bar punch holes 401 are through
holes 401. The bar punch holes 401 are adapted to receive a locking pin 500. Also,
the handgrip profile 211 comprises handgrip punch holes 402. The handgrip punch holes
402 are through holes. The handgrip punch holes 402 are adapted to receive a locking
pin 500. The handgrip punch holes 402 are formed on each handgrip profile 211 in each
side 222 of the regular, octagonal profile 221. The handgrip punch holes 402 are formed
such that each of the handgrip profiles 221 is fixed in a releasable manner to the
bar 100 in one of the multiple predetermined rotating positions 301 with respect to
the bar 100 when one of the handgrip punch holes 402 coincides with one of the bar
punch holes 401 and when a rotating locking pin 500 fits in the handgrip punch hole
402 coinciding with one of the bar punch holes 401.
[0050] According to an embodiment show in Fig. 1D, a handgrip 201 comprises a handgrip profile
211. The handgrip profile 211 comprises a regular, octagonal profile 221 which comprises
eight sides 222 comprising two opposite sides 5;6. The handgrip profile 211 further
comprises a handle 212 fixed onto the regular, octagonal profile 221 such that the
handle 212 interconnects the two opposite sides 5;6 of the regular, octagonal profile
221 in the middle of each side 5;6.
[0051] According to an embodiment show in Fig. 1E, which schematically illustrates a side
view of the embodiment shown in Fig. 1A, a strength training bar 1 comprises a bar
100 extending along a longitudinal direction 10 and adapted to support weights. The
bar 100 comprises a first bar end 101 adapted to support weights. The strength training
bar 1 further comprises two handgrips which can rotate with respect to the bar 100
and which can be fixed in a releasable manner to the bar in multiple predetermined
rotating positions with respect to the bar 100. Each of the two handgrips can be fixed
in a releasable manner at multiple predetermined translational positions 302 along
the longitudinal direction 10 of the bar 100 via a locking pin 500.
[0052] According to an embodiment show in Fig. 2A, the results of a simulation of the displacement
magnitude in mm of a half of a strength training bar 1 under the weight of one or
more weights is schematically depicted. Components with reference numbers identical
to Fig. 1A-1E fulfil the same function. The results are depicted for only one half
of the strength training bar 1 for clarity reasons. Similar simulation results would
be obtained for the other half of the strength training bar 1, i.e. for the first
bar end, as the strength training bar 1 is symmetrical. The strength training bar
1 comprises a hollow bar 100 which comprises a middle bar section 103 which comprises
an oval shape 104 connected on a second end 132 to the second bar end 102. On Fig.
2A, a strength training bar 1 without any force applied on the second bar end 102
is depicted as the strength training bar 7 for which a displacement magnitude along
the entire bar 100 is equal to 0mm. The results depicted on Fig. 2A of the strength
training bar 8 show the displacement magnitude of the second bar end 102 under a vertical
force of 600N exerted on 200mm of the second bar end 102 by weights. As can be seen
on Fig. 2A, the displacement magnitude is almost null all along the oval shape 104
of the middle bar section 103 as illustrated by point B. As can be further seen on
Fig. 2A, the displacement magnitude along the second end 132 increases the furthest
the distance along the second bar end 102 from the second end 132. A maximum displacement
magnitude of 14.45mm as illustrated by point A is simulated for such force at the
point of the second bar end 102 the furthest from the second end 132.This indicates
that the strength training bar 1 according to the present invention can withstand
a given load condition without causing injuries to the user due to excessive bending.
A total displacement of 28mm for a force of 1200N, i.e. 240kg and the intrinsic weight
of the strength training bar 1, can be expected.
[0053] According to an embodiment show in Fig. 2B, the results of a simulation of the Von
Mises stress in MPa of a half of a strength training bar 1 under the weight of one
or more weights is schematically depicted for the conditions of Fig. 2A. Components
with reference numbers identical to Fig. 1A-1E fulfil the same function. The results
are depicted for only one half of the strength training bar 1 for clarity reasons.
Similar simulation results would be obtained for the other half of the strength training
bar 1, i.e. for the first bar end, as the strength training bar 1 is symmetrical.
The strength training bar 1 comprises a hollow bar 100 which comprises a middle bar
section 103 which comprises an oval shape 104 connected on a second end 132 to the
second bar end 102. The simulated values of Von Mises stress illustrate an average
plastic deformation of the strength training bar 1 equal to 235MPa. The maximum value
of Von Mises stress induced in the material is 117MPa as illustrated by point B, which
is less than the ultimate tensile strength of the material which is for example steel
which demonstrates a yield strength around 250MPa and further demonstrates an ultimate
tensile strength larger than 400MPa, which is an indication that the strength training
bar 1 will not fail under a wait of 1200N at the second bar end 102 and at the first
end bar. The minimum value of Von Mises stress induced in the material is close to
0 as illustrated by point A.
[0054] According to an embodiment shown in Fig. 3A, a strength training bar 1 comprises
a bar 100 extending along a longitudinal direction 10 and adapted to support weights
3. The strength training bar 1 further comprises two handgrips 201;202 which can rotate
with respect to the bar 100 and which can be fixed in a releasable manner to the bar
100 in multiple predetermined rotating positions with respect to the bar 100. Each
of the two handgrips 201;202 can be fixed in a releasable manner at multiple predetermined
translational positions 302 along the longitudinal direction 10 of the bar 100. Each
of the handgrips 201;202 can rotate around an axis 20 traverse to the longitudinal
direction 10. Each of the handgrips 201;202 comprises a translational section 231
which translates along the longitudinal direction 10 of the bar 100. Each translation
section 231 can be fixed to the bar 100 in a releasable manner at multiple predetermined
translational positions 302 along the longitudinal direction 10. Each handgrip 201;202
further comprises a base section 232 which is fixed onto the translational section
231 in a releasable manner in multiple predetermined rotating positions with respect
to the bar 100. Each base section 232 is further adapted to support one or more weights
3. Each handgrip 201;202 further comprises a handle 233 which is fixedly mounted onto
a respective base section 232. The bar 100 has a triangular cross-section. According
to an alternative embodiment, the bar 100 has a circular cross-section. According
to a further alternative embodiment, the strength training bar 1 comprises one or
more weights which are supported on each end of the bar 100.
[0055] According to an embodiment shown in Fig. 3B, a strength training bar 1 comprises
a bar 100 extending along a longitudinal direction 10 and adapted to support weights
3. Components with reference numbers identical to Fig. 3A fulfil the same function.
A handgrip 201 can rotate with respect to the bar 100 and can be fixed in a releasable
manner to the bar 100 in multiple predetermined rotating positions 301 with respect
to the bar 100. A handgrip 201 can be fixed in a releasable manner at multiple predetermined
translational positions 302 along the longitudinal direction 10 of the bar 100. A
handgrip 201 comprises a translational section 231 which translates along the longitudinal
direction 10 of the bar 100. The translation section 231 can be fixed to the bar 100
in a releasable manner at multiple predetermined translational positions 302 along
the longitudinal direction 10. A handgrip 201 further comprises a base section 232
which is fixed onto the translational section 231 in a releasable manner in multiple
predetermined rotating positions with respect to the bar 100. In other words, the
base section 232 can rotate with respect to the translation section 231 around an
axis 20 traverse to the longitudinal direction 10. In other words, the translation
section 231 remains fixed in a releasable manner at the predetermined translational
position 302 without rotating with respect to the longitudinal direction 10 of the
bar 100 when the base section 232 rotates with respect to the translation section
231 around an axis 20 traverse to the longitudinal direction 10 of the bar 100. The
base section 232 is further adapted to support one or more weights 3, for example
one weight on each side of the base section 232 along the longitudinal direction 10
of the bar 100. A handgrip 201 further comprises a handle 233 which is fixedly mounted
onto a respective base section 232. The bar 100 has a triangular cross-section. According
to an alternative embodiment, the bar 100 has a circular cross-section. The base section
232 of the handgrip 201 can rotate around an axis 20 traverse to the longitudinal
direction 10. For example, the base section 232 of the handgrip 201 can be fixed in
a releasable manner in four different predetermined rotating positions 301 with respect
to the bar 100. The multiple predetermined rotating positions 301 correspond to an
angle 31 formed between the handgrip 201 and the longitudinal direction 10 when the
handgrip 201 is fixed in a releasable manner to the bar 100. In Fig. 3B, a first example
of a handgrip 201 is fixed in a releasable manner to the bar 100 such that an angle
31 equal to 90 degrees is formed between the handle of the handgrip 201 and the longitudinal
direction 10. In Fig. 3B, a second example of a handgrip 201 is fixed in a releasable
manner to the bar 100 such that an angle 31 equal to 45 degrees is formed between
the handle 212 of the handgrip 201 and the longitudinal direction 10. In Fig. 3B,
a third example of a handgrip 201 is fixed in a releasable manner to the bar 100 such
that an angle 31 equal to 0 degree is formed between the handle 212 of the handgrip
201 and the longitudinal direction 10. According to alternative embodiments, the angle
31 formed between the handgrip 201 and the longitudinal direction 10 can be 0 degree,
45 degrees, 90 degrees or -45 degrees with respect to the longitudinal direction 10.
[0056] According to an embodiment shown in Fig. 4A, a handgrip 201 comprises a translational
section 231, a base section 232 carrying weights 3 and a handle 233. Components with
reference numbers identical to Fig. 3A fulfil the same function. The handgrip 201
can rotate with respect to the bar and can be fixed in a releasable manner to the
bar in multiple predetermined rotating positions with respect to the bar. The translational
section 231 translates along the longitudinal direction 10 of the bar. The translation
section 231 can be fixed to the bar in a releasable manner at multiple predetermined
translational positions along the longitudinal direction 10. A handgrip 201 further
comprises the base section 232 which is fixed onto the translational section 231 in
a releasable manner in multiple predetermined rotating positions with respect to the
bar. In other words, the base section 232 can rotate with respect to the translation
section 231 around an axis 20 traverse to the longitudinal direction 10. In other
words, the translation section 231 remains fixed in a releasable manner at the predetermined
translational position without rotating with respect to the longitudinal direction
10 of the bar when the base section 232 rotates with respect to the translation section
231 around an axis 20 traverse to the longitudinal direction 10 of the bar. The base
section 232 is further adapted to support one or more weights 3, for example one weight
on each side of the base section 232 along the longitudinal direction 10 of the bar.
A handgrip 201 further comprises a handle 233 which is fixedly mounted onto a respective
base section 232. According to an embodiment shown in Fig. 4B, a bar 100 comprises
a plurality of translational engagement recesses 130. The translational engagement
recesses 130 are not through. According to an alternative embodiment, the translational
engagement recesses 130 are through holes in the bar 100. The translational engagement
recesses 130 are formed at the multiple predetermined translational positions 302
along the bar 100 and each translational engagement recess 130 can fit a translation
locking pin 501. The translation section 231 of the handgrip 201 of Fig. 4A further
comprises a translation locking pin which engages in a releasable manner in the translational
engagement recesses 130 of the bar 100 of Fig. 4B, thereby fixing the translational
section 231 to the bar 100 in a releasable manner at one of the predetermined translational
positions 302 along the longitudinal direction 10 when the translation locking pin
fits in one of the translational engagement recesses 130. The base section 232 further
comprises a rotation locking pin 502 and the translational section 231 further comprises
punch holes which can receive the rotation locking pin 502 of the respective base
section 232.
[0057] According to an embodiment shown in Fig. 5 and on the zoom on Fig. 5, a handgrip
201 comprises a translational section 231, a base section 232 carrying weights 3 and
a handle 233. Components with reference numbers identical to Fig. 4A and Fig. 4B fulfil
the same function. The handgrip 201 can rotate with respect to the bar and can be
fixed in a releasable manner to the bar in multiple predetermined rotating positions
with respect to the bar 100. The translational section 231 translates along the longitudinal
direction 10 of the bar 100. The translation section 231 can be fixed to the bar 100
in a releasable manner at multiple predetermined translational positions along the
longitudinal direction 10. A handgrip 201 further comprises the base section 232 which
is fixed onto the translational section 231 in a releasable manner in multiple predetermined
rotating positions with respect to the bar 100. In other words, the base section 232
can rotate with respect to the translation section 231 around an axis 20 traverse
to the longitudinal direction 10. In other words, the translation section 231 remains
fixed in a releasable manner at the predetermined translational position 302 without
rotating with respect to the longitudinal direction 10 of the bar 100 when the base
section 232 rotates with respect to the translation section 231 around an axis 20
traverse to the longitudinal direction 10 of the bar 100. The base section 232 is
further adapted to support one or more weights 3, for example one weight on each side
of the base section 232 along the longitudinal direction 10 of the bar 100. A handgrip
201 further comprises a handle 233 which is fixedly mounted onto a respective base
section 232. According to an embodiment shown in Fig. 5, a bar 100 comprises translational
engagement recesses 130. The translational engagement recesses 130 are not through.
According to an alternative embodiment, the translational engagement recesses 130
are through holes in the bar 100. The translational engagement recesses 130 are formed
at the multiple predetermined translational positions 302 along the bar 100 and each
translational engagement recess 130 can fit a translation locking pin 501. The translation
section 231 of the handgrip 201 of Fig. 5 further comprises a translation locking
pin 501 which engages in a releasable manner in the translational engagement recesses
130 of the bar 100 of Fig. 5, thereby fixing the translational section 231 to the
bar 100 in a releasable manner at one of the predetermined translational positions
302 along the longitudinal direction 10 when the translation locking pin 501 fits
in one of the translational engagement recesses 130.
[0058] According to an embodiment shown in Fig. 6, a handgrip 201 comprises a translational
section 231, a base section 232 carrying weights 3 and a handle 233. Components with
reference numbers identical to Fig. 4A and Fig. 4B and Fig. 5 fulfil the same function.
The base section 232 further comprises a rotation locking pin 502. The translation
section 231 further comprises punch holes 403 which are through and which can receive
a rotation locking pin 502 of the base section 232. The punch holes 402 are formed
such that an angle 31 of 0 degree, 45 degrees, 90 degrees or - 45 degrees is formed
between the handle 233 and the longitudinal direction 10 when the rotation locking
pin 502 of the base section 232 engages in a releasable manner in one of the punch
holes 502, thereby fixing the base section 232 to the translational section 231 in
a releasable manner in one of the predetermined rotating positions 301 with respect
to the bar 100. The multiple predetermined rotating positions correspond to the angle
31 formed between the handle 233 and the longitudinal direction 10 when the handgrip
201 is fixed in a releasable manner to the bar 100.
[0059] According to an embodiment shown in Fig. 7, a strength training bar 1 comprises a
bar 100 extending along a longitudinal direction 10 and adapted to support weights.
The strength training bar 1 further comprises two handgrips 201;202 which each comprise
handles 212 which can rotate with respect to the bar 100 and which can be fixed in
a releasable manner to the bar in multiple predetermined rotating positions 301 with
respect to the bar 100. Each of the two handgrips 201;202 can be fixed in a releasable
manner at multiple predetermined translational positions 302 along the longitudinal
direction 10 of the bar 100. For example, each of the two handgrips 201;202 can be
fixed in a releasable manner in four different predetermined rotating positions 301
with respect to the bar 100. Each of the handles 212 of the handgrips 201;202 can
rotate around an axis 20 traverse to the longitudinal direction 10. The multiple predetermined
rotating positions 301 correspond to an angle 31 formed between each of the handles
212 of the handgrips 201;202 and the longitudinal direction 10 when each of the two
handles 212 of the handgrips 201;202 is fixed in a releasable manner to the bar 100.
In Fig. 7, the handgrip 201 is fixed in a releasable manner to the bar 100 such that
an angle equal to 0 degrees is formed between the handle 212 of the handgrip 201 and
the longitudinal direction 10. According to alternative embodiments, the angle formed
between the handgrips 201;202 and the longitudinal direction 10 can be 0 degree, 45
degrees, 90 degrees or -45 degrees with respect to the longitudinal direction 10.
The bar 100 comprises a first bar end 101 adapted to support weights, a second bar
end 102 adapted to support weights, and a middle bar section 103 which comprises an
oval shape 104. The oval shape 104 extends along the longitudinal direction 10. The
oval shape 104 is connected on a first end 131 to the first bar end 101 and on a second
end 132 opposite to the first end 131 to the second bar end 102. Each handgrip 201;202
comprises a handgrip profile 211 wherein an outer diameter 21 of the handgrip profile
211 fits the oval shape 104 of the middle bar section 103. Each handgrip 201;202 further
comprises a handle 212 which fits the handgrip profile 211. Each handgrip profile
211 can slide in the respective oval shape 104 along the longitudinal direction 10
of the bar 100. Each handgrip profile 211 can be fixed in a releasable manner to the
bar 100 at multiple predetermined translational positions 302 along the longitudinal
direction 10. The bar 100 has a circular cross-section. According to an alternative
embodiment, the bar 100 has a triangular cross-section. According to a further alternative
embodiment, the strength training bar 1 comprises one or more weights. Each of the
handgrip profiles 211 of the strength training bar 1 further comprises a rotating
ring 601 adapted to rotate with respect to the outer diameter 21 of the handgrip profile
211. The rotating ring 601 comprises an outer ring diameter 602 comprising semi-circular
protrusions 603. The semi-circular protrusions 603 are regularly defined along the
outer ring diameter 602. According to an alternative embodiment, the semi-circular
protrusions are not periodically defined along the outer ring diameter 602. Each of
the handgrip profiles 211 further comprises a plurality of actuating means 604 fixed
to the handgrip profile 211 between the outer ring diameter 602 and the outer diameter
21. Each of the handgrip profiles 211 further comprises a plurality of locking pins
500 wherein each of the locking pins 500 fits in the handgrip punch holes 402, and
consequently fit in the each of the bar punch holes. Each of the handles 212 is fixed
on to the handgrip profile 211 such that the handle 212 interconnects two opposite
handgrip punch holes 402 of the outer diameter 21. Each of the handgrip profiles 211
further comprises a locking mechanism wherein the locking mechanism 605 is adapted
to allow the respective handgrip profile 211 to translate in the oval shape 104 along
the longitudinal direction 10 of the bar 100 when the rotating ring 601 is rotated
with respect to the outer diameter 21 such that the semi-circular protrusions 603
are positioned between two consecutive handgrip punch holes 40, thereby allowing the
actuating means 604 to pull the locking pins 500 inwards such that the locking pins
500 are released from the handgrip punch holes 402. Each locking mechanism 605 is
further adapted to fix the respective handgrip profile 211 in a releasable manner
at one of the multiple predetermined translational positions 302 along the longitudinal
direction 10 of the bar 100 and in one of the predetermined rotating positions 301
with respect to the bar 100 when the rotating ring 601 is rotated with respect to
the outer diameter 21 such that the semi-circular protrusions 603 push the actuating
means 604 outwards such that the locking pins 500 fit through the handgrip punch holes
402 and consequently also fit in the bar punch holes. The locking mechanism comprises
a bistable locking mechanism 607 which is inserted in a locking through path of the
handgrip profiles 211 to host the bistable locking mechanism 607. The locking through
path comprises a locking point and a locking guide 609 connected to the locking point.
The bistable locking mechanism 607 comprises a knob 610.
[0060] According to an embodiment shown in Figs. 8A and 8B and 8C, a locking mechanism 605
comprises a bistable locking mechanism 607. Bistability is understand as work done
on the bistable locking mechanism 607 to move it just past the peak, at which point
the bistable locking mechanism 607 goes "over centre" to its secondary stable position.
The result is a toggle-type action- work applied to the bistable locking mechanism
607 below a threshold sufficient to send it 'over center' results in no change to
the mechanism's state. Springs are a known method of achieving an "over centre" action.
A spring attached to a simple two position ratchet-type mechanism can create a bistable
locking mechanism 607 that is clicked or toggled between two mechanical states. The
handgrip 211 comprises a handle 212 and a locking through path 606 to host the locking
mechanism 605. The locking through path 606 comprises a locking point 608 and a locking
guide 609 connected to the locking point 608. The bistable locking mechanism 607 fits
in the locking point 608 and the locking guide 609. The bistable locking mechanism
607 comprises a knob 610, a spring 611 which can translate between the locking point
608 and the locking guide 609 in the locking through path 606. The bistable locking
mechanism 607 further comprises a locking ring 612 arranged between the knob 610 and
the spring 611. In Fig. 8A, the locking ring 612 fits in a releasable manner in the
locking point 608 almost entirely, thereby securely fixing in a releasable manner
the bistable locking mechanism 607 and securely fixing in a releasable manner the
rotating ring 601 and preventing the rotating ring 601 from rotating with respect
to the outer diameter. In this position, the semi-circular protrusions push the actuating
means outwards such that the locking pins fit through the handgrip punch holes and
consequently through the bar punch holes thereby fixing the handgrip profile 211 in
a releasable manner to the bar. For example, the spring 611 on Fig. 8A is in a compressed
state and the spring on Fig. 8B and 8C is in a relaxed state. According to an alternative
embodiment, the spring 611 is in a relaxed state in Fig. 8A and the spring 611 is
in an elongated state in Fig. 8B and 8C. On Fig. 8B, the bistable locking mechanism
607 is unlocked and the locking ring 612 does not fit in the locking through path
606 while the spring 611 is still able to translate between the locking point 608
and the locking guide 609. In this position, the locking ring 612 rests in a releasable
manner on the locking guide 609 while the spring 611 is still in the locking guide
609. In this position, the semi-circular protrusions are positioned between two consecutive
handgrip punch holes, thereby allowing the actuating means to pull the locking pins
inwards such that the locking pins are released from the handgrip punch holes, thereby
allowing the actuating means outwards such that the locking pins fit through the handgrip
punch holes and consequently through the bar punch holes thereby handgrip profile
to rotate with respect to the bar and to be translated along the longitudinal direction
of the bar. The handle 212 is for example fixed to the rotating ring 601. A rotation
of the handle 212 thereby triggers a rotation of the rotating ring 601 of the handgrip
profile 211.
[0061] According to an embodiment shown in Figs. 9A and 9B, a handgrip profile 211 comprises
an outer diameter 21 and the outer diameter 21 is such that the handgrip profile can
translate in the oval shape 104 of the middle bar section 103 along the longitudinal
direction 10 of the bar. The handgrip profile 211 further comprises a rotating ring
601 adapted to rotate with respect to the outer diameter 21. The rotating ring 601
comprises an outer ring diameter 602 which comprises semi-circular protrusions 603.
Semi-circular recesses are therefore defined between two consecutive semi-circular
protrusions 603. The handgrip profile 211 further comprises a plurality of actuating
means 604 fixed to the handgrip profile 211 between the outer ring diameter 602 and
the outer diameter 21. The handgrip profile 211 further comprises a plurality of locking
pins 500 wherein each of the locking pins 500 is fixed to one of the actuating means.
The locking pins 500 fit in the handgrip punch holes 402 of the handgrip profile 211
when the semi-circular protrusions 603 push on the actuating means 604 such that the
actuating means 604 push the locking pins 500 in the handgrip punch holes 402. In
an unlocked state depicted in Fig. 9A of the locking mechanism, the semi-circular
protrusions 603 of the outer ring diameter 602 are positioned between two consecutive
handgrip punch holes 402, thereby allowing the actuating means 604 to follow the recesses
of the outer ring diameter 602 of the rotating ring 601. The actuating means 604 then
pull the locking pins 500 inwards the handgrip profile 211 such that the locking pins
are released from the handgrip punch holes 402. In a locked state depicted in Fig.
9B of the locking mechanism, the semi-circular protrusions 603 of the outer ring diameter
602 are each aligned with one of the handgrip punch holes 402 along a radius of the
handgrip profile 211, thereby pushing the actuating means 604 outwards the handgrip
profile 211 such that the locking pins 500 fit through the handgrip punch holes 402.
According to an alternative embodiment, the handgrip profiles 211 comprise a plurality
of springs between the outer ring diameter 602 and the outer diameter 21, wherein
the springs are adapted to pull the locking pins 500 inwards thereby releasing the
locking pins 500 are the handgrip punch holes 402 when the semi-circular protrusions
603 are positioned between two consecutive handgrip punch holes 402 in an unlocked
state of the locking mechanism, and wherein the semi-circular protrusions 603 are
further adapted to push the springs such that the springs push the locking pins 500
in the handgrip punch holes 402 when the semi-circular protrusions 603 coincide with
the handgrip punch holes in a locked state of the locking mechanism.
[0062] An embodiment of a cross-section of a strength training bar 1 as depicted in Fig.
7 and comprising details as shown in Fig. 8A, 8B, 8C, 9A and 9B is shown in Fig. 10.
Components having identical reference numbers fulfil the same function. The strength
training bar 1 comprises a bar 100 extending along a longitudinal direction 10 and
adapted to support weights. The strength training bar 1 further comprises two handgrips
201;202 which each comprise handles 212 which can rotate with respect to the bar 100
and which can be fixed in a releasable manner to the bar in multiple predetermined
rotating positions 301 with respect to the bar 100. Each of the two handgrips 201;202
can be fixed in a releasable manner at multiple predetermined translational positions
302 along the longitudinal direction 10 of the bar 100. For example, each of the two
handgrips 201;202 can be fixed in a releasable manner in four different predetermined
rotating positions 301 with respect to the bar 100. Each of the handles 212 of the
handgrips 201;202 can rotate around an axis 20 traverse to the longitudinal direction
10. The multiple predetermined rotating positions 301 correspond to an angle 31 formed
between each of the handles 212 of the handgrips 201;202 and the longitudinal direction
10 when each of the two handles 212 of the handgrips 201;202 is fixed in a releasable
manner to the bar 100. In Fig. 10, the handgrip 201 is fixed in a releasable manner
to the bar 100 such that an angle equal to 0 degrees is formed between the handle
212 of the handgrip 201 and the longitudinal direction 10. According to alternative
embodiments, the angle formed between the handgrips 201;202 and the longitudinal direction
10 can be 0 degree, 45 degrees, 90 degrees or -45 degrees with respect to the longitudinal
direction 10. The bar 100 comprises a first bar end 101 adapted to support weights,
a second bar end 102 adapted to support weights, and a middle bar section 103 which
comprises an oval shape 104. The oval shape 104 extends along the longitudinal direction
10. The oval shape 104 is connected on a first end 131 to the first bar end 101 and
on a second end 132 opposite to the first end 131 to the second bar end 102. Each
handgrip 201;202 comprises a handgrip profile 211 wherein an outer diameter 21 of
the handgrip profile 211 fits the oval shape 104 of the middle bar section 103. Each
handgrip 201;202 further comprises a handle 212 which fits the handgrip profile 211.
Each handgrip profile 211 can slide in the respective oval shape 104 along the longitudinal
direction 10 of the bar 100. Each handgrip profile 211 can be fixed in a releasable
manner to the bar 100 at multiple predetermined translational positions 302 along
the longitudinal direction 10. The bar 100 has a circular cross-section. According
to an alternative embodiment, the bar 100 has a triangular cross-section. According
to a further alternative embodiment, the strength training bar 1 comprises one or
more weights. Each of the handgrip profiles 211 of the strength training bar 1 further
comprises a rotating ring 601 adapted to rotate with respect to the outer diameter
21 of the handgrip profile 211. The rotating ring 601 comprises an outer ring diameter
602 comprising semi-circular protrusions 603. The semi-circular protrusions 603 are
regularly defined along the outer ring diameter 602. According to an alternative embodiment,
the semi-circular protrusions are not periodically defined along the outer ring diameter
602. Each of the handgrip profiles 211 further comprises a plurality of actuating
means 604 fixed to the handgrip profile 211 between the outer ring diameter 602 and
the outer diameter 21. Each of the handgrip profiles 211 further comprises a plurality
of locking pins 500 wherein each of the locking pins 500 fits in the handgrip punch
holes 402, and consequently fit in the each of the bar punch holes 401. Each of the
handles 212 is fixed on to the handgrip profile 211 such that the handle 212 interconnects
two opposite handgrip punch holes 402 of the outer diameter 21. Each of the handgrip
profiles 211 further comprises a locking mechanism 605 wherein the locking mechanism
605 is adapted to fix the respective handgrip profile 211 in a releasable manner at
one of the multiple predetermined translational positions 302 along the longitudinal
direction 10 of the bar 100 and in one of the predetermined rotating positions 301
with respect to the bar 100 when the rotating ring 601 is rotated with respect to
the outer diameter 21 such that the semi-circular protrusions 603 push the actuating
means 604 outwards such that the locking pins 500 fit through the handgrip punch holes
402 and consequently also fit in the bar punch holes. In a locked state depicted in
Fig. 10 of the locking mechanism, the semi-circular protrusions 603 of the outer ring
diameter 602 are each aligned with one of the handgrip punch holes 402 along a radius
of the handgrip profile 211, thereby pushing the actuating means 604 outwards the
handgrip profile 211 such that the locking pins 500 fit through the handgrip punch
holes 402. According to an alternative embodiment, the handgrip profiles 211 comprise
a plurality of springs between the outer ring diameter 602 and the outer diameter
21, wherein the semi-circular protrusions 603 are further adapted to push the springs
such that the springs push the locking pins 500 in the handgrip punch holes 402 when
the semi-circular protrusions 603 coincide with the handgrip punch holes in a locked
state of the locking mechanism.
[0063] An embodiment of a cross-section of a strength training bar 1 as depicted in Fig.
7 and comprising details as shown in Fig. 8A, 8B, 8C, 9A, 9B and 10 is shown in Fig.
11. Components having identical reference numbers fulfil the same function. The strength
training bar 1 comprises a bar 100 extending along a longitudinal direction 10 and
adapted to support weights. The strength training bar 1 further comprises two handgrips
201;202 which each comprise handles 212 which can rotate with respect to the bar 100
and which can be fixed in a releasable manner to the bar in multiple predetermined
rotating positions 301 with respect to the bar 100. Each of the two handgrips 201;202
can be fixed in a releasable manner at multiple predetermined translational positions
302 along the longitudinal direction 10 of the bar 100. For example, each of the two
handgrips 201;202 can be fixed in a releasable manner in four different predetermined
rotating positions 301 with respect to the bar 100. Each of the handles 212 of the
handgrips 201;202 can rotate around an axis 20 traverse to the longitudinal direction
10. The multiple predetermined rotating positions 301 correspond to an angle 31 formed
between each of the handles 212 of the handgrips 201;202 and the longitudinal direction
10 when each of the two handles 212 of the handgrips 201;202 is fixed in a releasable
manner to the bar 100. In Fig. 11, the handgrip 201 is fixed in a releasable manner
to the bar 100 such that an angle equal to 0 degrees is formed between the handle
212 of the handgrip 201 and the longitudinal direction 10. According to alternative
embodiments, the angle formed between the handgrips 201;202 and the longitudinal direction
10 can be 0 degree, 45 degrees, 90 degrees or -45 degrees with respect to the longitudinal
direction 10. The bar 100 comprises a first bar end 101 adapted to support weights,
a second bar end 102 adapted to support weights, and a middle bar section 103 which
comprises an oval shape 104. The oval shape 104 extends along the longitudinal direction
10. The oval shape 104 is connected on a first end 131 to the first bar end 101 and
on a second end 132 opposite to the first end 131 to the second bar end 102. Each
handgrip 201;202 comprises a handgrip profile 211 wherein an outer diameter 21 of
the handgrip profile 211 fits the oval shape 104 of the middle bar section 103. Each
handgrip 201;202 further comprises a handle 212 which fits the handgrip profile 211.
Each handgrip profile 211 can slide in the respective oval shape 104 along the longitudinal
direction 10 of the bar 100. Each handgrip profile 211 can be fixed in a releasable
manner to the bar 100 at multiple predetermined translational positions 302 along
the longitudinal direction 10. The bar 100 has a circular cross-section. According
to an alternative embodiment, the bar 100 has a triangular cross-section. According
to a further alternative embodiment, the strength training bar 1 comprises one or
more weights. Each of the handgrip profiles 211 of the strength training bar 1 further
comprises a rotating ring 601 adapted to rotate with respect to the outer diameter
21 of the handgrip profile 211. The rotating ring 601 comprises an outer ring diameter
602 comprising semi-circular protrusions 603. The semi-circular protrusions 603 are
regularly defined along the outer ring diameter 602. According to an alternative embodiment,
the semi-circular protrusions are not periodically defined along the outer ring diameter
602. Each of the handgrip profiles 211 further comprises a plurality of actuating
means 604 fixed to the handgrip profile 211 between the outer ring diameter 602 and
the outer diameter 21. Each of the handgrip profiles 211 further comprises a plurality
of locking pins 500 wherein each of the locking pins 500 fits in the handgrip punch
holes 402, and consequently fit in the each of the bar punch holes 401. Each of the
handles 212 is fixed on to the handgrip profile 211 such that the handle 212 interconnects
two opposite handgrip punch holes 402 of the outer diameter 21. Each of the handgrip
profiles 211 further comprises a locking mechanism 605 wherein the locking mechanism
605 is adapted to allow the respective handgrip profile 211 to translate in the oval
shape 104 along the longitudinal direction 10 of the bar 100 when the rotating ring
601 is rotated with respect to the outer diameter 21 such that the semi-circular protrusions
603 are positioned between two consecutive handgrip punch holes 40, thereby allowing
the actuating means 604 to pull the locking pins 500 inwards such that the locking
pins 500 are released from the handgrip punch holes 402. In an unlocked state depicted
in Fig. 11 of the locking mechanism, the semi-circular protrusions 603 of the outer
ring diameter 602 are positioned between two consecutive handgrip punch holes 402,
thereby allowing the actuating means 604 to follow the recesses of the outer ring
diameter 602 of the rotating ring 601. The actuating means 604 then pull the locking
pins 500 inwards the handgrip profile 211 such that the locking pins are released
from the handgrip punch holes 402 and from the bar punch holes 401. According to an
alternative embodiment, the handgrip profiles 211 comprise a plurality of springs
between the outer ring diameter 602 and the outer diameter 21, wherein the springs
are adapted to pull the locking pins 500 inwards thereby releasing the locking pins
500 are the handgrip punch holes 402 when the semi-circular protrusions 603 are positioned
between two consecutive handgrip punch holes 402 in an unlocked state of the locking
mechanism.
[0064] Although the present invention has been illustrated by reference to specific embodiments,
it will be apparent to those skilled in the art that the invention is not limited
to the details of the foregoing illustrative embodiments, and that the present invention
may be embodied with various changes and modifications without departing from the
scope thereof. The present embodiments are therefore to be considered in all respects
as illustrative and not restrictive, the scope of the invention being indicated by
the appended claims rather than by the foregoing description, and all changes which
come within the meaning and range of equivalency of the claims are therefore intended
to be embraced therein. In other words, it is contemplated to cover any and all modifications,
variations or equivalents that fall within the scope of the basic underlying principles
and whose essential attributes are claimed in this patent application. It will furthermore
be understood by the reader of this patent application that the words "comprising"
or "comprise" do not exclude other elements or steps, that the words "a" or "an" do
not exclude a plurality, and that a single element, such as a computer system, a processor,
or another integrated unit may fulfil the functions of several means recited in the
claims. Any reference signs in the claims shall not be construed as limiting the respective
claims concerned. The terms "first", "second", third", "a", "b", "c", and the like,
when used in the description or in the claims are introduced to distinguish between
similar elements or steps and are not necessarily describing a sequential or chronological
order. Similarly, the terms "top", "bottom", "over", "under", and the like are introduced
for descriptive purposes and not necessarily to denote relative positions. It is to
be understood that the terms so used are interchangeable under appropriate circumstances
and embodiments of the invention are capable of operating according to the present
invention in other sequences, or in orientations different from the one(s) described
or illustrated above.
1. A strength training bar (1) comprising:
- a bar (100), extending along a longitudinal direction (10) and adapted to support
weights (3);
- at least two handgrips (201;202), adapted to rotate with respect to said bar (100)
and to be fixable in a releasable manner to said bar in multiple predetermined rotating
positions (301) with respect to said bar (100); each of said at least two handgrips
(201;202) further being adapted to be fixable in a releasable manner at multiple predetermined
translational positions (302) along said longitudinal direction (10) of said bar (100).
2. A strength training bar (1) according to claim 1, wherein each of said handgrips (201;202)
is fixable in a releasable manner in four different predetermined rotating positions
(301) with respect to said bar (100).
3. A strength training bar (1) according to any of the preceding claims, wherein:
- each of said at least two handgrips (201;202) is adapted to rotate around an axis
(20) traverse said longitudinal direction (10);
- said multiple predetermined rotating positions (301) correspond to an angle (31)
of:
∘ 0 degree;
∘ 45 degrees;
∘ 90 degrees;
∘ -45 degrees;
formed between each of said at least two handgrips (201;202) and said longitudinal
direction (10) when each of said at least two handgrips (201;202) is fixed in a releasable
manner to said bar (100).
4. A strength training bar (1) according to claims 3, wherein said bar (100) comprises:
- a first bar end (101), adapted to support one or more weights (3);
- a second bar end (102), adapted to support one or more weights (3);
- a middle bar section (103) comprising an oval shape (104), wherein said oval shape
(104) extends along said longitudinal direction (10); and wherein said middle bar
section (103) is connected on a first end (131) to said first bar end (101) and connected
on a second end (132) opposite to said first end (131) to said second bar end (102);
and wherein said middle bar section (103) comprises bar punch holes (401) formed at
said multiple predetermined translational positions (302) along said bar (100), wherein
said bar punch holes (400) are adapted to receive a locking pin (500);
and wherein each of said at least two handgrips (201;202) comprises:
- a handgrip profile (211), wherein an outer diameter (21) of said handgrip profile
(211) fits said oval shape (104) of said middle bar section (103); and wherein said
outer diameter (21) of said handgrip profile (211) comprises handgrip punch holes
(402), each of said handgrip punch holes (402) being adapted to receive a locking
pin (500); and
- a handle (212) fitting said handgrip profile (211).
5. A strength training bar (1) according to claim 4, wherein:
- each of said handgrip profiles (211) is adapted to be translated in said oval shape
(104) along said longitudinal direction (10) of said bar (100); and
- each of said handgrip profiles (211) is adapted to be fixed in a releasable manner
to said bar (100) at multiple predetermined translational positions (302) along said
longitudinal direction (10).
6. A strength training bar (1) according to claim 5, wherein:
- each of said handgrip profiles (211) comprises a regular, octagonal profile (221);
- said handgrip punch holes (402) are formed in each side (222) of said regular, octagonal
profile (221); and
- each of said handles (212) is fixed onto said respective regular, octagonal profile
(221) such that said handle (212) interconnects two opposite sides (222) of said regular,
octagonal profile (221).
7. A strength training bar (1) according to claim 6, wherein said handgrip punch holes
(402) are formed such that each of said handgrip profiles (221) is fixed in a releasable
manner to said bar (100) in one of said multiple predetermined rotating positions
(301) with respect to said bar (100) when one of said handgrip punch holes (402) coincides
with one of said bar punch holes (401) and when a locking pin (500) fits in said handgrip
punch hole (402) coinciding with one of said bar punch holes (401).
8. A strength training bar (1) according to claim 5, wherein:
- each outer diameter (21) of said handgrip profiles (211) is adapted to translate
in said oval shape (104) of said middle bar section (103) along said longitudinal
direction (10) of said bar (100);
- each of said handgrip profiles (211) further comprises:
∘ a rotating ring (601) adapted to rotate with respect to said outer diameter (21)
of said handgrip profile (211); wherein said rotating ring (601) comprises an outer
ring diameter (602) comprising semi-circular protrusions (603);
∘ a plurality of actuating means (604) fixed to said respective handgrip profile (211)
between said outer ring diameter (602) and said outer diameter (21);
∘ a plurality of locking pins (500); wherein each locking pin (500) is fixed to one
of said actuating means (604); and wherein each locking pin (500) fits in said handgrip
punch holes (402);
- each of said handles (212) is fixed on to said handgrip profile (211) such that
said handle (212) interconnects two opposite handgrip punch holes (402) of said outer
diameter (21);
- each of said handgrip profiles (211) further comprises a locking mechanism (605),
wherein said locking mechanism (605) is adapted to:
∘ allow said respective handgrip profile (211) to translate in said oval shape (104)
along said longitudinal direction (10) of said bar (100) when said rotating ring (601)
is rotated with respect to said outer diameter (21) such that said semi-circular protrusions
(603) are positioned between two consecutive handgrip punch holes (402), thereby allowing
said actuating means (604) to pull said locking pins (500) inwards such that said
locking pins (500) are released from said handgrip punch holes (402);
∘ fix said respective handgrip profile (211) in a releasable manner at one of said
multiple predetermined translational positions (302) along said longitudinal direction
(10) of said bar (100) and in one of said predetermined rotating positions (301) with
respect to said bar (100) when said rotating ring (601) is rotated with respect to
said outer diameter (21) such that said semi-circular protrusions (603) push said
actuating means (604) outwards such that said locking pins (500) fit through said
handgrip punch holes (402).
9. A strength training bar (1) according to claim 8, wherein each of said handgrip profiles
(211) further comprises a locking through path (606) adapted to host a respective
locking mechanism (605); and wherein each of said locking mechanisms (605) comprises
a bistable locking mechanism (607).
10. A strength training bar (1) according to claim 9, wherein said locking through path
(606) comprises a locking point (608) and a locking guide (609) connected to said
locking point (608); and wherein each of said bistable locking mechanisms (607) comprises:
- a knob (610);
- a spring (611), adapted to translate between said locking point (608) and said locking
guide (609) in said locking through path (606);
- a locking ring (612) arranged between said knob (610) and said spring (611), adapted
to:
∘ fit in a releasable manner in said locking point (608) when said rotating ring (601)
is rotated with respect to said outer diameter (21) such that said semi-circular protrusions
(603) push said actuating means (604) outwards such that said locking pins (500) fit
through said handgrip punch holes (402), thereby fixing said handgrip profile (211)
in a releasable manner to said bar (100) in one of said predetermined rotating positions
(301) with respect to said bar (100) and at one of said predetermined translational
positions (302) along said longitudinal direction (10) of said bar (100);
∘ rest in a releasable manner on said locking guide (609) when said rotating ring
(601) is rotated with respect to said outer diameter (21) such that said semi-circular
protrusions (603) are positioned between two consecutive handgrip punch holes (402),
thereby allowing said actuating means (604) to pull said locking pins (500) inwards
such that said locking pins (500) are released from said handgrip punch holes (402),
thereby allowing said handgrip profile (211) to rotate with respect to said bar (100)
and to be translated along said longitudinal direction (10) of said bar (100).
11. A strength training bar (1) according to claim 3, wherein said each of said at least
two handgrips (201;202) comprises:
- a translational section (231), adapted to translate along said longitudinal directional
(10) of said bar (100) and further adapted to be fixed to said bar (100) in a releasable
manner at said multiple predetermined translational positions (302) along said longitudinal
direction (10);
- a base section (232), adapted to be fixed onto said translational section (231)
in a releasable manner in multiple predetermined rotating positions (301) with respect
to said bar (100); and wherein said base section (232) is further adapted to support
one or more weights (3); and
- a handle (233) fixedly mounted onto said base section (232).
12. A strength training bar (1) according to claim 11, wherein:
- said bar (100) comprises a plurality of translational engagement recesses (130)
formed at said multiple predetermined translational positions (302) along said bar
(100), each translational engagement recess (130) being adapted to fit a translation
locking pin (501); and
- each of said translational sections (231) comprises a translation locking pin (501),
adapted to engage in a releasable manner in said translational engagement recesses
(130) of said bar (100), thereby fixing said respective translational section (231)
to said bar (100) in a releasable manner at one of said predetermined translational
positions (302) along said longitudinal direction (10) when said translation locking
pin (501) fits in one of said translational engagement recesses (130).
13. A strength training bar (1) according to claim 11 or 12, wherein:
- each of said base section (232) further comprises a rotation locking pin (502);
and
- each of said translational sections (231) further comprises punch holes (403) adapted
to receive a rotation locking pin (502) of said respective base section (232), wherein
said punch holes (502) are formed such that an angle (31) of:
∘ 0 degree;
∘ 45 degrees;
∘ 90 degrees;
∘ -45 degrees;
is formed between said handle (233) and said longitudinal direction (10) when a rotation
locking pin (502) of said respective base section (232) engages in a releasable manner
in one of said punch holes (502), thereby fixing said respective base section (232)
to said translational section (231) in a releasable manner in one of said predetermined
rotating positions (301) with respect to said bar (100).
14. A strength training bar (1) according to any of the previous claims, wherein said
strength training bar (1) further comprises said one or more weights (3).
15. Use of a strength training bar (1) according to any of the previous claims for training
strength, wherein:
- each of said handgrips (201;202) is set in a predetermined rotating position with
respect to said bar (100) by rotating said handgrip (201;202) with respect to said
bar (100) and by fixing said handgrip (201;202) in a releasable manner to said bar
(100) in said predetermined rotating position;
- each of said handgrips (201;202) is further set in a predetermined translational
position along said longitudinal direction (10) of said bar (100) by translating said
handgrip (201;202) along said longitudinal direction (10) of said bar (100) and by
fixing said handgrip (201;202) in a releasable manner to said bar (100) in said predetermined
translational position.