Background to the Invention
[0001] The present disclosure relates to a ski binding, in particular a ski binding for
a cross-country or touring ski, having a binding portion which can be shifted forwards
and backwards relative to the ski by activating an actuator coupled to the binding
portion.
[0002] Skiing and in particular cross-country skiing or touring skiing is a popular winter
sport suitable for many people. In the cross-country skiing the arms and legs move
parallel to the direction of travel and with the same synchronized rhythm as walking
or running. When out walking or running, if every time the skier took a step forward,
his/her forward momentum carried twice as far as his/her normal stride would take
him/her. That is classical skiing. Classical skiing depends on kicking and gliding.
The kick is like a walking or running step; it is how the skier moves forward. Each
kick sends the skier gliding down the trail.
[0003] Accordingly, the cross-country skis have two distinct base sections. The tip and
tail portion of the base are called the "glide zones". The central portion of the
ski is called the "kick zone". The glide zones are completely smooth. The kick zone
may have what is called a "Contagrip" pattern, or fish scales milled into the base.
As the skiers step forward, all their weight is on the kick zone and the "Contagrip"
pattern is pressed into the snow. As an alternative, the kick zone can be covered
with a special wax, the so called "kick wax". When a skier applies his/her weight
to the ski, the kick zone comes in contact with the snow, the kick wax sticks to the
snow and the skier is able to move forward. Different kick waxes are used for different
conditions and there are a wide variety of kick waxes to match the variations in snow
type. This is how classical skiers propel themselves forward. As the skier glides,
the kick zone doesn't touch the snow because the skier's weight is spread over the
smooth glide zones. During the glide phase, both the skis' tips and tails (the glide
zones) will transfer the skier's weight to the snow, providing optimum glide. During
the kick phase, the middle 1/3 of the kicking ski (the kick zone) will come into contact
with the snow as the skier shifts their weight to just one ski, providing optimum
kick. For a fast ski, it is therefore required to provide the skier with a smooth,
predictable and consistent transition between the kick and glide phases in all snow
conditions.
[0004] As it is well known, in order to enjoy this sport properly, it is necessary to have
appropriate equipment. In particular, the skis and skis bindings for cross-country
skiing must provide an appropriate fastening of the skier's boot to the ski, whilst
also allowing the heel of the boot to leave the surface of the ski. An important aspect
to be taken into account is the position of the bindings relative to the balance point
(neutral balance). Depending on the physiology of the skier and other concomitant
factors such as the snow or weather conditions, it could be more convenient to fix
the ski behind the neutral point, so that the ski's tip will stay closer to the snow,
or to fix the ski in front of the neutral point, so that the ski's tip will rise quicker.
[0005] Also, it is known that by properly adjusting the binding forwards and backwards relative
to the longitudinal direction of the ski, the skier is able to adapt an individual
kick and technique, thus creating a more relaxed and efficient style. In particular,
moving the binding forward for classical cross-country skiing gives the skier a better
foothold (kick), while moving it backwards gives the skier better glide.
[0006] In prior art, there is a variety of arrangements for adjusting front and/or rear
jaws of the binding in the longitudinal direction of the ski (see for example
DE 39 24 939 A1). However, these arrangements are often complicated in use and difficult to produce.
[0007] To find a remedy to this problem,
WO 2005/113081 A1 proposes an adjusting device for a cross-country or telemark binding, which is simple
to use and does not affect the functional reliability of the binding. In particular,
the binding is mounted on the top face of a ski, especially on a mounting plate thereon,
so as to be longitudinally displaceable and is lockable in a plurality of sliding
positions by means of a locking device.
[0008] Although this system has the advantage of adjusting the position of the binding as
needed in a simple way, in order to perform this adjustment the skier must stop skiing
and take the skis off. This could be a strong hindrance in terms of time consuming,
if the skier needs to slightly shifting the position of the binding relative to the
skis, in order to quickly improve/optimize for example the kick performance at a ski
slope during a ski running.
Summary of the Invention
[0009] It is therefore an object of the present invention to provide a ski binding with
improved performances. In particular, to provide a ski binding whose position can
be adjusted relative to the longitudinal direction of the ski, while the skier is
out skiing. This object is achieved by the ski binding according to claim 1. Further
advantageous combinations and designs are given in the dependent claims there from.
[0010] A first aspect of the present disclosure relates to a ski binding which is preferably
designed for a cross country or touring ski. The binding is generally provided with
a section which is for attachment or interaction with a top surface of a ski. This
interaction may be directly with the surface of the ski, or could be by means of an
intermediate mounting plate; wherein the mounting plate is itself attached to the
surface of the ski. The binding is attached in such a manner that it will move on
the surface of the ski or mounting plate, and is thus held in a displaceable manner.
In this way, it will be attached in an appropriately firm manner, however between
a variety of different positions on the surface of the ski. In order to move the binding
over the ski, or mounting plate, the binding is provided with some form of interaction
device, wherein the device preferably has a series of teeth or extensions thereon
which can interact with notches or ridges provided on the ski or mounting plate. Depending
on the particular form of the toothed device, the binding can be moved over and then
fixed at an appropriate portion of the ski as chosen by the user. In some examples
the toothed device will rotate and move the binding with this rotation, or the tooth
device will rotate out of interaction with the ridges or indents on the ski or mounting
plate - thus allowing the movement of the binding over the surface of the ski.
[0011] Preferably, the toothed device is held in a rotatable manner in the binding, such
that either the rotation of the device moves the interaction between the extensions
or teeth and the ridges and will thus move the binding over the surface of the ski,
or the rotation of the toothed device removes the teeth from interlocking interaction
with the ridges on the ski or mounting plate thus allowing the movement of the binding
to occur.
[0012] If the toothed device is in the form of cogwheel, it is possible for the teeth on
the cogwheel to extend below the lower surface of the binding such that they would
project into ridges, or the like, on the ski or mounting plate upper surface, in this
manner, it is clear that rotation of the cogwheel will move the cogwheel through adjacent
notches or indents and will lead to a translational movement of the cogwheel over
the ski surface. Naturally, if the cogwheel is at a fixed location within the binding,
whilst being held in a rotational manner, the rotation of the cogwheel will also mean
that the binding moves with the translational movement which then moves the binding
over the surface of the ski. It is also possible to provide the cogwheel with a section
without any teeth, such that this orientation of the cogwheel could be used when first
placing the binding into slidable interaction with the ski or mounting plate. Obviously,
if the teeth project beneath the surface of the binding upon fixing of the binding
to the mounting plate or ski, these will interfere with the binding plate or ski.
The use of the section without teeth will allow for the slidable interaction and positioning
of the binding on the ski.
[0013] Another possibility for the toothed device is one in which a rotation axis is formed
and the teeth extend outward in a plane perpendicular to the rotation axis along one
side of the axis. As would then be understood, rotation of this device along the rotation
axis will move the teeth into and out of engagement with the ski or mounting plate,
thus allowing the binding position to be chosen and fixed by the user. Preferably,
the teeth would be of a semicircular shape, thus improving the rotation ease of the
toothed device with the ski or mounting plate notches.
[0014] Instead of the single or multiple semicircular teeth described above, it is also
possible to provide the teeth by means of a worm screw thread extending outward from
the rotation axis. With such a design, rotation of the toothed device will lead to
the worm screw being run through the notches or indents on the ski or mounting plate,
and thus the position of the binding can be changed. Rotational movement of the worm
screw within a fixed position of the binding will ensure that the binding is moved
through the notches by rotation of the worm screw. If the worm screw is provided with
a blank section at one point, this would allow the initial slidable interaction of
the worm screw onto the ski or mounting plate. Of course, without such a blank section
the binding could still be entered into the notches of the ski or mounting plate,
however it would be necessary to rotate the worm screw the moment the interaction
occurs.
[0015] In order to ease the rotation of the toothed device, this can be provided with a
handle, wheel or lever, which extends outwards from the rotation axis. Depending upon
the nature of the toothed device, the handle is provided in such a way that the easy
rotation of the device around the rotation axis is facilitated. Further, if a handle
is provided, it could be used to fix the location or position of the binding. The
rotation of the toothed interaction device will allow either the direct motion of
the binding, or the binding to be released from a fixed location. By fixing the handle
with clips, or the like, into the binding, the rotation of the toothed device can
be fixed and thus appropriate fixing of the binding is facilitated at the desired
position on the ski.
[0016] It is also possible to provide the toothed interaction device as a separate removable
cartridge. By providing the toothed interaction device with a separate housing which
can be clip, or otherwise removably, fit with the binding, the toothed interaction
device could be added to a binding after it has been roughly positioned at the desired
location on the ski. Adding the toothed device removable cartridge after rough positioning,
will then allow for the rotation of the toothed device to move the binding over the
surface of the ski.
[0017] Another possibility is to provide the toothed interaction device as a cogwheel in
which the teeth extend radially outward from a central rotation axis, wherein the
rotation axis is provided by two extensions running in this axial direction. The binding
may then be provided with an appropriate housing for holding the cogwheel, wherein
the housing has a number of slots into which the extensions can be positioned so as
to allow for rotation of the cogwheel to occur but no translational motion of the
cogwheel to be possible. In the same way as above, this means that the cogwheel is
in a fixed location on the binding, but with rotation of the cogwheel the binding
can be moved across slots or indents on the surface of the ski. This is particularly
the case if the teeth extend below the lower surface of the binding.
[0018] Either the cogwheel is provided with an axial hole running through the cogwheel and
circular extensions, or with indents into the circular extensions and cogwheel in
the axial direction. In the axial hole or indent there are positioned a number of
radially inwardly projecting teeth, to form a structured axial hole or indent. The
number of teeth advantageously, but not necessarily, matches the number of externally
extending teeth on the outside of the cogwheel. Preferably, the cogwheel comprises
two indents either side of the cogwheel, wherein both of these indents are aligned
with the rotation axis of the cogwheel.
[0019] In order to interact with the cogwheel it is possible to provide a detachable handle.
The handle could be provided in a generally H-shaped configuration, such that two
ends of the legs forming the H could interact with the axial hole or indents on the
cogwheel. By appropriately structuring a series of toothed extensions at the ends
of the legs of the H handle, these can interact with the internally projecting indents
on the cogwheel in either the axial hole or indents. In this manner, by providing
the same number of internal teeth in the axial hole or indents, it is clear that the
handle can always be positioned within the hole or indents, and will allow that complete
rotation of the handle is possible to give maximum travel of the binding of the ski.
Preferably, the toothed interaction device will be held under tension when attached
to the cogwheel by ensuring that the teeth of the tooth projections are a little bit
narrower than the width of the cogwheel in the axial direction; clearly this will
stop the handle from accidentally disengaging during use.
[0020] In order to fix the position of the binding the binding may be provided with one
or more clips into which the crosspiece of the H handle can be clipped. Obviously,
the H-shape is a preferred design, as pushing on the upper side of the legs, this
being the end without the toothed projections, will lead to the toothed projections
being pulled apart slightly to allow interaction with the cogwheel. Obviously a different
shape, for example an n. will also allow for this system to work, however without
the advantageous lever action for opening and closing the gap.
[0021] The toothed interaction device of the binding may also be provided by means of a
cogwheel in which the teeth extend radially outward from a rotation axis. Holding
the cogwheel within the binding will thus allow for the rotational motion of the cogwheel,
so that the teeth, which preferably extend below the binding, can be used to interact
with ridges or slots on the ski or mounting plate. An axle can be provided through
the centre of the rotation axis of the cogwheel, by means of a bolt-type fastener.
Holding the cogwheel within a housing provided in the binding, allows the cogwheel
to be held rotationally such that the binding can be positioned over the surface of
the ski or mounting plate in a similar manner to that described above. In order to
fix the cogwheel within the binding, a housing in the binding is provided which extends
above the upper surface of the binding. The housing is sized such that the cogwheel
will fit snugly therein, allowing rotation, but will also hold the cogwheel firmly
in position such that no translational motion between the cogwheel and binding could
occur. In this manner, it is clear that if the cogwheel is fixed in a non-rotational
manner by some mechanism, the binding will also be fixed around the cogwheel and thus
the cogwheel interacting with the mounting plate or ski will be able to hold the binding
at the desired position on the ski surface.
[0022] The housing can be structured such that the end faces of the cogwheel can be accessed
either side of the housing. This could be achieved by means of the cogwheel being
provided with two axial extensions, in a similar manner to that described above, which
fit within two appropriate slots in the side faces of the housing which can hold the
extensions in the axial direction and thus properly hold the cogwheel in a rotational
manner into the binding. A gap is structured between the heads of the bolt fastener
pieces, such that two frictional surfaces of a handle can be positioned between the
bolt fastener heads and the end surfaces of the cogwheel. By providing the handle
with two frictional inwardly facing regions, which are positioned facing the end faces
of the cogwheel or the end faces of the extensions in the axial direction of the cogwheel,
it is clear that tightening of the bolt fastener will bring the frictional faces into
frictional engagement with the end faces of the cogwheel and thus hold the handle
and cogwheel together as a single unit. It will be understood that rotation of the
handle at this point will lead to rotation of the cogwheel, and then when the binding
is held on a mounting plate or ski surface with the teeth of the cogwheel interacting
with notches or indents, the rotation of the cogwheel via the handle will lead to
the translational motion of the binding over the ski surface.
[0023] The bolt fastener is preferably provided by means of an outer tubular element which
has a hollow tubular interior with an internal screw thread therein. A bolt or screw
element can then be positioned such that it will screw interface with this internal
screw and thus bring the bolt fastener to a tighter or looser holding. As is clear,
the system then functions by the binding being positioned on the surface of the ski
at roughly the desired point, and the bolt fastener is tightened such that the internal
screw works within the internal screw thread and holds the handle in a frictional
engagement with the end surfaces of the cogwheel such that the handle and cogwheel
will move as a single unit.
[0024] It is possible to provide the above-described binding with a kit in which a mounting
plate is provided. The mounting plate would be provided such that it could attach
to the surface of the ski, wherein the mounting plate comprises the notches for interacting
with the appropriate rotation device provided with teeth. A spacer may be provided
either between the binding and the mounting plate, or between the mounting plate and
the ski. The spacer plate would, if positioned on top of the mounting plate, be provided
with the appropriate notches to interact with the toothed device of the binding.
Description of the Figures
[0025]
Fig. 1a and Fig. 1b show side and top views of the ski binding according to a first
embodiment of the present disclosure displaced on a mounting plate;
Fig. 2a, Fig. 2b and Fig. 2c show a cross section of the ski binding of Fig. 1, as
viewed along the section A-A (Fig. 2a), a front view of the ski binding of Fig. 1
as viewed along the line B-B (Fig. 2b) and a cross section of the ski binding of Fig.
1, as viewed along the section C-C (Fig. 2c);
Fig. 3a, Fig. 3b, Fig. 3c and Fig. 3d show side and top views of the ski binding according
to a first embodiment of the present disclosure displaced on a mounting plate, as
viewed in the first, kick position and the second, glide position;
Fig. 4 shows a perspective view of the ski binding according to a first embodiment
of the present disclosure displaced on a mounting plate, as viewed in the first, kick
position;
Fig. 5 shows a perspective view of the ski binding according to a first embodiment
of the present disclosure displaced on a mounting plate, as viewed in the second,
glide position.
Fig. 6a and Fig. 6b show top views of the ski binding according to a second embodiment
of the present disclosure displaced on a mounting plate;
Fig. 7a, Fig. 7b, Fig. 7c and Fig. 7d show a cross section of the ski binding of Fig.
6a and Fig. 6b, as viewed along the section A-A (Fig. 7a) and the section C-C (Fig.
7c) and a cross section of the second unit of Fig. 7a and Fig. 7c, as viewed along
the section B-B (Fig. 7b) and D-D (Fig. 7d);
Fig. 8a and Fig. 8b show perspective views of the ski binding according to a second
embodiment of the present disclosure without the housing of the second unit, as viewed
in the first, kick position and the second, glide position;
Fig. 9 shows a perspective view of the second unit according to a second embodiment
of the present disclosure displaced on a mounting plate, as viewed in the first, kick
position;
Fig. 10 shows a perspective view of the second unit according to a second embodiment
of the present disclosure displaced on a mounting plate, as viewed in the second,
glide position.
Fig. 11 shows an example of a moveable binding wherein the toothed interaction device
is provided with a rotation axis perpendicular to the direction of travel of the binding.
Fig. 12 shows a moveable binding wherein the toothed interaction device has a rotation
axis which allows engagement or disengagement of teeth with notches of a binding plate.
Fig. 13 shows a binding in which the toothed interaction device is provided by a worm
screw.
Fig. 14 shows a binding in which a toothed interaction device and removable handle
allow the longitudinal positioning of the binding with respect to the ski.
Fig. 15 shows further details of the cogwheel and removable handle as seen in Fig.
14.
Fig 16 shows a binding in which frictional forces can be used to hold the handle and
cogwheel together for movement of the binding.
Detailed Description
[0026] Figures 1a and 1b show a side and a top view of a ski binding 1 for cross-country
skiing, wherein the actuator is a lever system. The ski binding 1 is mounted on a
mounting plate 2. The mounting plate 2 is suitable for locating the ski binding 1
at one end and locating a heel plate 5, formed separately there from, at the other
end. in order to fix the ski binding 1 and the heel plate 5 on the mounting plate
2, the ski binding 1 and the heel plate 5 are provided with locking members in the
form of teeth (not shown in the figures) and the mounting plates 2 with counter locking
members 22 in the form of notches. The ski binding 1 comprises a first unit 3 having
a first unit plate 31 and a second unit 4 having a second unit plate 41, which are
connected to each other through a connecting means 32.
[0027] The first unit 3 comprises a binding portion 33 for interacting with the shoe sole
of a ski boot. In particular, the pivot axis associated with the shoe sole (not shown
in the figures), can be accommodated in the retaining element 34 of the binding portion
33. In the present case, the retaining element 34 has the form of a hook. To accommodate
the tread layer of the shoe sole, the first unit 3 furthermore comprises longitudinal
guide ribs 35 for the front portion and the heel plate 5 guide ribs 51 for the rear
portion. This binding is designed for boots the soles of which each have, at a spacing
from the front end of the sole, a sole-associated engagement element which so co-operates
with a complementary associated binding portion 33 that the heel of the boot can be
lifted up. Between the sole-associated engagement element and the front end of the
sole of the associated boot there is formed, in the sole, a projecting part which
can be so brought into contact with a binding associated catch (not shown in the figure)
that the boot is held in engagement by means of the binding portion 33 and, at the
same time, can carry out a movement upwards and downwards about a notional transverse
axis behind the catch. The binding portion 33, and consequently a boot connected thereto,
is capable of pivoting upwards about an horizontal axis extending across the longitudinal
direction of the boot and the binding, against the action of a resilient element,
such as a compression spring. The sole-associated engagement element is a transverse
axis arranged inside a sole recess, as is already known for cross-country or telemark
ski boots.
[0028] The second unit 4 comprises a second unit housing 42 and a movable actuator 43 protruding
from the housing 42. The actuator 43 is coupled to the first unit 3 by means of the
connecting means 32. The actuator 43 is a lever system having a U-shaped form with
two arms and is pivotally mounted on the second unit housing 42 by two axles 44. The
connecting means 32 is an extension of the first unit 3 and is inserted in the housing
42 and comprises connecting stripes 38, which are connected to the first unit 3 at
one end and to a pair of jaws 36 extending vertically out of the housing 42 and having
longitudinally extending slots 37 at the other end. In particular, the arms of the
actuator 43 are coupled to the jaws 36 of the connecting means 32 in order to transfer
the movement of the actuator 43 to the connecting means 32 and then to the first unit
3. Specifically, the arms of the actuator 43 are provided each with a pin 46 (shown
in Fig 2c), which penetrates in each of the slots 37 of the jaws 36. The second unit
4 furthermore comprises two transverse slots 45 in the housing 42 for receiving the
jaws 36 of the connecting means 32 and for allowing these jaws 36 to slide forwards
and backwards relative to the second unit 4 when the actuator 43 is moved.
[0029] Fig. 2a shows the system of Fig. 1 as viewed along the section A-A. Form this section,
it is clear that the actuator 43 can be pivotally moved relative to the second unit's
housing 42 with respect to the rotational axis 44. Due to the coupling between the
jaws 36 and the arms of the actuator 43, the movement of the actuator 43 is transferred
to the connecting means 32.
[0030] Fig. 2b shows the front view of the system of Fig. 1. The actuator 43 is located
in front of the binding portion 33, thereby not affecting the functional performances
of the ski.
[0031] Fig. 2c illustrates a cross section of the system of Fig.1 as viewed along the section
C-C. This figure in particular shows that the coupling between the jaws 36 and the
actuator 43 is performed by means of the engagement between the pins 46 of the arms
of the actuator 43 and the slots 37 of the jaws 36. Furthermore, Fig. 2c shows that
the mounting plate 2 is T-shaped in cross-section 21 and that the second unit 4 engages
beneath the two lateral longitudinal edges of the mounting plate 2.
[0032] Fig. 3a, 3b, 3c, and 3d show a comparison between the side and a top view of a ski
binding 1 in "kick position" (Fig. 3a and 3b) and in "glide position" (Fig. 3c and
3d). In the kick position, the actuator 43 is moved in the direction of the arrow
101. Accordingly, the first unit 3 is shifted forwards in the direction of the arrow
102. In the glide position, the actuator 43 is moved in the direction of the arrow
103. Accordingly, the first unit 3 is shifted backwards in the direction of the arrow
104. By moving back the actuator 43 in the direction of the arrow 101, the first unit
3 is shifted to the kick position again. Form the comparison of these figures, it
is possible to notice that during the movement from the kick to the glide position
and vice versa, only the first unit 3 shifts forwards and backwards by a maximum quantity
S with respect to the mounting plate 2. On the other hand, the second unit 4 and the
heel plate 5 remain fixed in their positions relative to the mounting plate 2.
[0033] Fig. 4 and Fig. 5 show the comparison between the "kick position" (Fig. 4) and "glide
position" (Fig. 5) in a perspective view. Here, the maximum shift S of the first unit
3 with respect to the mounting plate 2 can be better appreciated.
[0034] Figures 6a and 6b show a top view of a ski binding 1 for cross-country skiing, wherein
the actuator is a rotatable knob. This ski binding 1 is similar in construction to
that illustrated in Fig. 1a and Fig. 1b. Accordingly, the same reference numerals
have been used for the same elements. The ski binding 1 of Fig. 6 differentiates from
that of Fig. 1 in that the second unit 4 comprises a second unit housing 62 and a
rotatable actuator 63 protruding from the housing 62. The actuator 63 can be rotated
clockwise or counter-clockwise (see double arrows in the figures). Based on the rotation
of the actuator 63, the first unit 3 is moved to the first, kick position (Fig. 6a)
or to the second, glide position (Fig. 6b).
[0035] Figures 7a and 7c illustrate a cross section of the system of Fig.6a and Fig. 6b
as viewed along the sections A-A and C-C, respectively. In particular, these figures
show a detail of the second unit 4, when the first unit 3 is in the kick position
(Fig. 7a) or in the glide position (Fig.7c). The second unit 4 comprises a rotatable
actuator 63 having a stem 64, which at one end is connected to an elongated head 61
and at the other end is connected to a coupling means 67, which has the form of a
disk. The ski binding 1 comprises a connecting means 32' which is an extension of
the first unit 3 and is slidable beneath the housing 62. The coupling means 67 is
provided with a pin 66 which is inserted in a slot 65 of the connecting means 32'
and the housing 62 is provided with a resilient catch tab 68 which can be inserted
in one of the plurality of recesses 39 arranged longitudinally along the connecting
means 32'. By comparing figures 7a and 7c it is clear that a rotation of 180° of the
actuator 63 determines a rotation of the coupling means 67 and therefore a translation
of the connecting means 32' by a quantity S. Also, in the kick position (Fig. 7a)
the catch tab 68 is inserted in the recess 39, which is the closest one to the first
unit 3, while in the glide position (Fig. 7c) the catch tab 68 is inserted in the
recess 39, which is the most distant one from the first unit 3.
[0036] Figures 7b and 7d illustrate a cross section of the second unit 4 of Fig.7a and Fig.
7c as viewed along the broken sections B-B and D-D, respectively. In the kick position
(Fig. 7b) the pin 66 is at one end of the longitudinal slot 65 and the slot 65 is
located at one edge of the coupling means 67. In the glide position (Fig. 7d) the
slot 65 is located at the other edge of the coupling means 67 (not shown) and is shifted
backwards by a quantity corresponding to the length of the diameter of the coupling
means 67.
[0037] Fig. 8a and 8b show a comparison between a perspective view of a ski binding 1, wherein
the actuator is a rotatable knob in "kick position" (Fig. 8a) and in "glide position"
(Fig. 8b). In the kick position, the actuator 63 is moved in the direction of the
arrow 105. Accordingly, the first unit 3 is shifted forwards in the direction of the
arrow 106. In the glide position, the actuator 63 is moved in the direction of the
arrow 107. Accordingly, the first unit 3 is shifted backwards in the direction of
the arrow 108. By moving back the actuator 63 in the direction of the arrow 105, the
first unit 3 is shifted to the kick position again. Form the comparison of these figures,
it is possible to notice that during the movement from the kick to the glide position
and vice versa, only the first unit 3 shifts forwards and backwards by a maximum quantity
S with respect to the mounting plate 2. On the other hand, the second unit 4 and the
heel plate 5 remain fixed in their positions relative to the mounting plate 2. The
ski binding 1 of Fig. 8a and 8b is shown without the housing 62 of the second unit
4, in order to appreciate the different positions of the recesses 39 of the connecting
means 32' and the slot 65 during the kick and the glide positions. In particular,
it can be noted that the connecting means 32' slides beneath the actuator 63 and that
the slot 65 moves from one edge to the other edge of the coupling means 67.
[0038] Fig. 9 and Fig. 10 show the comparison between the "kick position" (Fig. 9) and "glide
position" (Fig. 10) in a perspective view of the second unit 4 in detail. Here, the
maximum shift S of the first unit 3 with respect to the second unit 4 can be better
appreciated.
[0039] Fig. 11 shows a further structure for providing a ski binding 100 for a ski, preferably
a cross-country or touring ski, in which the binding 100 can be moved over the surface
of the ski. The structure shown in Fig. 11 is one in which the binding 100 interacts
with the ski via a mounting plate 110. The mounting plate is similar to, or the same
as, the mounting plate 110 discussed above, and is intended to be, preferably semi-permanently
or permanently, affixed to the ski in one of a variety of manners. It is possible
for the mounting plate 110 to be stuck to the upper surface of the ski by means of
an appropriate adhesive, or the mounting plate 110 can be welded or screwed to the
ski. Indeed, the mechanism of fixing the mounting plate 110 to the ski is not altogether
relevant for the interaction with the binding 100 and the ski.
[0040] Whilst the embodiment shown in Fig. 11 is a binding 100 interacting with the ski
through a binding plate 110, it is also possible for the binding 100 to interact directly
with the ski. If the ski were to be provided with appropriate fixing mechanisms such
that the binding 100 could be attached to the ski directly in a slidable manner, the
elements of the binding 100 being discussed below can interact directly with the ski.
Obviously, it is a further advantage to use the mounting plate 110, as this improves
the workability and construction of the ski, as the necessary portions for interacting
with the binding 100 need not be constructed in an integral manner with the ski during,
or after, manufacture.
[0041] As has been discussed above, the binding 100 should interact with the ski or mounting
plate 110 in a slidable manner. In the following discussion, the possibility of interacting
the binding 100 with the ski via a mounting plate 110 is discussed: this is not intended
to be limiting, as it will be clear that appropriate structures provided on the mounting
plate 110 could be incorporated into the ski, such that the binding 100 interacts
in the manner described below directly with the ski and not through the mounting plate
110.
[0042] The slidable interaction between the binding 100 and the mounting 110 is by means
of the mounting plate 110 having a ridge or lip along the longitudinal side, such
that a flange or folded over portion on the lower side of the binding 100 can interact
with the lip 111 of the mounting plate 110. The use of a channel on the binding 100
either side of the longitudinal length of the binding 100 provides a simple mechanism
for interacting with the mounting plate 110. Obviously, it is also possible for the
mounting plate 110 to be provided with the channel by means of the edge of the mounting
plate 110 being bent round into a lip or flange configuration, such that the edges
of the binding 100 can simply slideably engage with the channel formed along the edge
of the mounting plate 110.
[0043] It is intended that the interaction between the binding 100 and the mounting plate
110 be such that the binding 110 can slide back and forth over the mounting plate
110. That is, the mounting plate 110, and the lip 111, if this is the mechanism chosen,
are intended to hold the binding 100 to the top of the ski, however it is still possible
for the binding 100 to move over the top of the mounting plate 110 in the longitudinal
direction, which is the front to back direction of the ski and mounting plate 110,
in a relatively free manner. Relatively free in this sense, indicates that the binding
100 should have no translational movement with respect to the mounting plate 110 other
than this longitudinal sliding over the lip or channel of the mounting plate 110,
and in all other respects the binding 100 is firmly held to the ski. In other words,
the binding 100 has no play between the lip 111 and the channel of the binding 100,
or vice versa, such that the binding 100 will not waggle or rock in its interaction
with the mounting plate 110 and is properly affixed to the ski. As a result of this
tight interaction between the binding 100 and mounting plate 110, the skilled person
will appreciate that some degree of friction exists between the binding 100 and the
mounting plate 110, such that the binding 100 will slide over the mounting plate 110,
but requires some small force to move the two with respect to each other. In other
words, the binding 100 will not readily slip over the top and slide with respect to
the mounting plate 110, and the user must use some force in order to move the two
with respect to each other.
[0044] As is presented in previous discussion of the mounting plate 110, the upper surface
can be provided with a series of notches or indents, which can be used for positioning
the binding 100 on the ski. It is these notches and indents which will also need to
be translated into the ski if a design without the mounting plate 110 is considered.
In the present case, the notches or indents 112 can actually be used to facilitate
and/or fix the translational motion of the binding 100 with respect to the mounting
plate 110. Positioning some form of toothed device 120 on the binding 100, allows
for the teeth 121 of the device 120 to interdigitate, interact or engage with the
notches and indents in the mounting plate 110, and in particular the upper surface
of the mounting plate 110. As will be appreciated, the toothed device 120 can be used
to appropriately fix the relative position of the binding 100 and the mounting plate
110, by means of the location of the toothed device 120 with respect to the indents
or notches 112 on the mounting plate 110.
[0045] In the example shown in Fig. 11, the toothed device 120 is held in a rotatable manner
within the binding 100. In particular, the toothed interaction device of this example
can be seen as a cogwheel 122 which has protruding teeth 121 appropriately aligned
with the indents or notches on the mounting plate 110. Further, as the skilled person
will appreciate, the teeth 121 can extend slightly below the lower surface of the
binding 100, such that the teeth 121 can be made to interdigitate with the indents
or notches of the mounting plate 111. Interdigitation of the teeth 121 and notches
112 on the mounting plate 110, will obviously allow for rotation of the toothed device
120, in this case the cogwheel 122, to move over the mounting plate 110 in a known
manner. That is, the rotation of the cogwheel 122 will interdigitate the teeth 121
with these notches 112 and translationally move the cogwheel 122 over the upper surface
of the mounting plate 110.
[0046] As will be appreciated, if the cogwheel 122 is held in a translationally fixed, but
rotatable manner on the binding 100, the binding 100 will move with the cogwheel 122
over the mounting plate 110 as the cogwheel 122 is rotated. Providing the cogwheel
122 with an axle 123, such that the cogwheel 122 is rotationally held in the binding
100, will allow rotation of the cogwheel 122 to push or move the binding 100 back
and forth along the longitudinal direction of the mounting 110. The cogwheel 122 is
thus appropriately translationally fixed in the binding 100 by means of the axle 123.
In this manner, the translational position of the binding 100 over the mounting plate
110 can be adjusted simply by rotating the cogwheel 122.
[0047] In the example shown in Fig. 11, the cogwheel 122 is provided with a lever 124 which
aids the user's interaction with the cogwheel 122. Obviously, the lever 124 is shown
by way of example, and could be structured in a different manner. For example, the
lever 124 could be replaced by a different shaped portion of the cogwheel 122 which
allows the user to gain enough purchase to facilitate the rotation of the cogwheel
122 and the translational movement of the binding 100 over the mounting plate 110.
Further, if a wheel is provided instead of the handle 124, a further device or movement
pin could be provided, which could perhaps be fixed in a clip-like fashion to the
binding 100 to ensure that it is not lost, and this could interact with a rotational
wheel - for example, the wheel could be provided with a series of holes or ridges
into which the movement pin is interlocked and temporarily fixed, such that the pin
can provide a removable handle which facilitates the rotation of the wheel, which
in turn rotates the cogwheel 122.
[0048] In order for the cogwheel 122 to interact with the binding plate 110, it is important
that the teeth 121 interlock with the indents or notches 112 of the mounting plate
110. In the example given, the teeth 122 are intended to extend below the lower surface
of the binding 100. Obviously, the inverse could be true, and the mounting plate 110
could be provided with a raised section in which the indents and notches, and the
like, are slightly higher in the mounting plate 110, such that they will interact
with the teeth 121 of the cogwheel 122. As is further clear from Fig. 11, the axle
123 holds the cogwheel 122 in a manner such that the rotational axis of the cogwheel
122 lies perpendicular to the longitudinal direction of the binding 100, mounting
plate 110 and ski. In this orientation, the teeth 121 are also extended in the transverse
direction, and will interact with notches which are also provided in the transverse
direction on the mounting plate 110.
[0049] In order to allow the binding 100 to slide onto the mounting plate 110 for the first
time, it is possible to provide the cogwheel with a section without teeth 121. In
this engagement/disengagement position, the teeth 121 on the cogwheel 122 are all
located away from a position which would interact with the notches, ridges or indents
of the mounting plate 110, such that the user may move the binding 100 over the mounting
plate 110, and no interaction between the cogwheel 122 and the notches or indents
112 will occur. This will clearly allow the slidable engagement and disengagement
of the binding 100 with the mounting plate 110. Alternatively, the mounting plate
110 could be provided with a section to the front or back, in the skiing direction,
of the mounting plate 110 in which no upward extensions are provided, such that the
cogwheel 122 has nothing to interact with before the indents, notches or ridges of
the mounting plate 110. In this manner, the binding could be slid onto the mounting
plate 110 prior to the teeth 121 engaging the notches or ridges 112, and then the
teeth 121 will engage with the first of the notches or indents 112 and would allow
the rotation of the cogwheel 122 to move the binding 100 over the mounting plate 110.
[0050] In a different example, it would be possible for the toothed device 120, in this
case the cogwheel 122, to be provided as a separate snap-in unit. This is not shown
in any of the figures. Clearly, the binding 100 could be structured such that a recess
is provided in the binding 100 into which the toothed device 120 can be snap fit,
in this case the cogwheel 122 however in the example shown in Figs. 12 and 13 a different
structure is provided for this toothed interaction device. Such a mechanism would
then allow the toothed device 120 to be clip-fit into the binding 100 when the binding
100 is positioned on the mounting plate 110. In this manner, the binding 100 would
be attached to the mounting plate 110 without any concern of the teeth 121 interacting
with the notches and indents 112 of the mounting plate, and then once the binding
was appropriately in position, the insert portion comprising the toothed device 120
would be snap-fit into the appropriate receiving portion of the binding 100 thus allowing
the teeth 121 to interact with the notches and indents 112 in the manner disclosed
above. Further, it is possible for the toothed device 120 to have certain orientations
in which the device 120 is held in rotational alignment with respect to the binding
100, such that perhaps one of two orientations are possible for the toothed interaction
device 120. In the example shown in Fig. 11, for example, the handle 124 could clip
into an appropriate recess with a retaining lip in each of the forward and reverse
orientations, such that the binding 100 would be held in one of two positions with
respect to the mounting plate 110.
[0051] In the same manner as described for Fig. 11, the device shown in Fig. 12 also provides
a rotational device with teeth 220 which interact with the indents or notches 112
provided on the mounting plate 110. Again, the use of the mounting plate 110 is not
vital and the provision of the notches, indents or ridges 112 could be made on the
ski, such that interaction with the toothed device 220 will allow the translational
positioning of the binding 200 on the ski. In the example shown in Fig. 12, it is
clear that the toothed device 220 is structured differently and rotates along an axis
221 which lies in the longitudinal direction of the binding 200 and mounting plate
110. In the example shown in Fig. 12, the teeth 222 of the toothed device 220 are
provided as hemispherical projections projecting from one side of a central rod or
bar 223. The rod or bar 223 acts as the rotation point of the toothed device 220,
and is aligned with the axis of rotation 221. From this, it is clear that the bar
223 will lie in the longitudinal direction of the binding 200 and mounting plate 110.
[0052] The toothed device 220 is structured such that the hemispherical teeth 222 may extend
below the lower side of the binding 200 and can properly interact with the indents
or notches on the upper surface of the mounting plate 110. Positioning the toothed
device 220 in the binding in a rotatable manner, allows for the teeth 222 to be brought
into, and out of, engagement with the notches and ridges on the upper surface of the
mounting plate 110. That is, in one orientation, the teeth 222 will extend downward
toward the mounting plate 110, such that the teeth 222 will interact and interdigitate
with the notches and indents 112 of the mounting plate 110. Rotating the toothed device
220 from this first orientation into a second orientation, will allow for the teeth
222 to extend upward out of the upper surface of the binding 200 such that they will
not interact with the notches and indents on the upper surface of the mounting plate
110. This can be made easier by means of a gripper handle 224 in the same manner as
in the example given in Fig. 11.
[0053] As will be understood, in the first orientation the teeth 222 will hold the translational
position of the binding 200 with respect to the mounting plate 110. In this orientation,
the slidable motion between the binding 200 and the mounting plate 110 is not possible,
and the position of the binding 200 will be held in this location. By rotating the
toothed device 220 into the second orientation, the teeth 222 no longer interact with
the indents or notches or ridges of the mounting plate 110, and the translational
slidable motion of the binding 200 with respect to the mounting plate 110 is not stopped.
In this case, the user could move the location of the binding 200 with regard to the
mounting plate 110, until the desired location is found, at which point the toothed
device 220 is rotated back to the first orientation such that the teeth 222 interact
with the notches and ridges 112 and hold the binding 200 at this relative translational
position with regard to the mounting plate 110.
[0054] In the same manner as described above for Fig. 11, the toothed device 220 could be
held in a frictional or clip-fit manner in each of the two orientations. The handle
224 could interact with a slot or ridge on the upper surface of the binding 200, such
that the rotational device 220 is held in the first orientation in a semi fixed manner
which will stop the accidental rotation of the toothed device 220 as skiing is being
undertaken. The user would then have to provide some force to disengage the teeth
220 from the notches or indents 112 of the mounting plate 110 in order to rotate the
toothed device 220 into the second orientation in which translational motion of the
binding 200 over the mounting plate 110 is possible. The figure shows a number of
teeth 222 on the toothed device 220, although this is not considered as a limiting
factor. Indeed, one tooth 222 would obviously provide the necessary fixing capability
and interaction with the notches or ridges 112, and multiple teeth are shown by example
only. It will be understood, however, that multiple teeth will lead to more interaction
points between the binding 200 and the mounting plate 110 which will improve reliability.
[0055] The example given in Fig. 13 is very similar to that given in Fig. 12. In the toothed
interaction device 320 of Fig. 13, the teeth 322 are provided by means of a worm thread
gear. In this case, it is clear that the rotational device 320 will rotate along the
axis 321, again lining longitudinally with regard to the longitudinal axis of the
binding 300 and mounting plate 110, such that the extensions 322 of the worm thread
will interact with the notches or ridges 112 of the mounting plate 110. As will be
clear to the skilled person, continuous rotation of the toothed device 320 will lead
to the screw thread teeth 322 moving the binding 300 in the forward and backward directions
over the surface of the mounting plate 110. In all other respects, the design of Fig.
13 is quite similar to that of Fig. 12, especially with regard to the central part
aligning with the axis of rotation 321.
[0056] In the example shown in Fig. 13, the toothed device 320 can be provided with its
own cogwheel to improve the user interaction and to allow for the rotation of the
toothed device 320 such that the worm thread teeth 322 will interact with the notches
or ridges 112. Again this is by way of example only, and some other form of rotational
aid could be provided, in the same manner as given above a wheel with holes could
be provided and a rod for interacting with the holes such that the rod could be temporarily
held within the holes and the rotation of the wheel will lead to rotation of the toothed
device 320.
[0057] As is also given for the device of Fig. 11, the device in Fig. 13 could be provided
with a toothed device 320 in which a radial portion, or slice, of the worm screw is
missing to allow for the initial positioning of the binding 300 on the mounting plate
110. If the orientation of the worm screw is in this position, no teeth 322 extend
and interact with the notches and ridges 112 of the mounting plate 110, and the binding
300 can be slid and interact with the mounting 110 prior to first use.
[0058] In the same manner as described for Fig. 11, the toothed interaction device of both
Figs. 12 and 13 could be provided as a separate unit which can then be snap-fit into
the binding 200, 300 when the binding 200, 300 is appropriately slid onto the mounting
plate 110. In this case, it would obviously not be necessary to provide the worm thread
322 of the toothed device 320 with a gap portion in the radial direction to allow
first engagement of the binding 300 with the mounting plate 110, as the binding 300
would be slid into engagement with the mounting plate 110 prior to engagement of the
snap-fit portion.
[0059] Also, the screw thread of Fig. 13 could be provided with appropriate notches or a
portion which interacts with notches on the binding 300, such that the toothed device
320 would rotate and be fixedly positioned in its rotational motion to avoid unwanted
rotation of this worm thread when the binding 300 is in use. Any known system for
this friction and clip interaction would be appropriate, and would allow for a fully
translational positioning of the binding 300 with respect to the surface of the mounting
plate 110. It is also possible to provide each of the toothed interaction devices
120, 220, 320 out of a metal material, so as to improve the strength of this device
in its interaction with the mounting plate 110. Obviously, a suitably rigid and strong
plastic material could also be used. Further, it is advantageous if the teeth on the
toothed interaction device 124, 220, 320 are of the same, or very similar, dimension
to the notches or indents on the mounting plate 110, as this will improve the reliability
of the interaction between the two and will reduce translational play.
[0060] Figs. 14 and 15 show another binding 412 design which allows for the binding to be
shifted forward and backward in the direction of travel of the ski. In Fig. 14, the
binding 412 is positioned next to a mounting plate which can be attached to the upper
surface of the ski. As with the previous descriptions, however, it is possible for
the binding 412 to interact directly with the upper surface of the ski. The concept
of use of the binding 412 of Figs. 14 and 15 is similar to that above, in that a toothed
interaction device is intended to lock with slots or ridges on the mounting plate
or upper surface of the ski, wherein rotation of the toothed interaction device will
move the binding 412 as the toothed device is held rotatably within the binding 412.
[0061] As can be seen from Fig. 14, the toothed interaction device in this design is a cogwheel
400. The cogwheel 400 is provided with a number of toothed extensions or teeth 401
which run along the axial direction of the cogwheel 400, and extend radially outward
from the cogwheel centre. The teeth 401 are intended to interact with the slots or
ridges on the ski or mounting plate, such that the teeth 401 can fully integrate and
be used to help position the binding 412 at the desired location on the ski. As is
clear from Figs. 14 and 15, the cogwheel 400 is somewhat barrel-shaped, as this allows
for a longer tooth 401 for interaction with slots on the ski or mounting plate. It
is not necessary, however, for the cogwheel 400 to be extended in the axial direction.
[0062] Projections 402 are provided either side of the cogwheel 400, wherein the projections
402 may be used to act as the axial or rotation point of the cogwheel 400 when housed
within the binding 412. The cogwheel 400 needs to be held in a rotatable manner within
the binding 412, however relative translational motion between the cogwheel 400 and
the binding 412 should be avoided, so as to ensure that rotation of the cogwheel 400
will allow the teeth 401 to interact with the ridges and move the binding 412.
[0063] Fig. 14 shows a housing 410 extending upwards and out of the upper surface of the
binding 412. The housing 410 is provided to house the cogwheel 400, and is preferably
structured such that only the lower projecting teeth 401 of the cogwheel 400 will
extend below the lower surface of the binding 412 and can thus interact with the teeth
on the ski or mounting plate. In order to house the cogwheel 400 in a rotatable manner,
the housing 410 is provided with two slots 411 either side of the housing 410. The
slots 411 are intended to appropriately house the preferably circular projections
402, such that the projections 402 fitting within the slots 411 will appropriately
hold the cogwheel 400 in a rotatable manner within the housing 410.
[0064] As can be appreciated from Fig. 14, if the cogwheel 400 is positioned through the
underside of the binding 412 in an appropriate hole through into the housing 410,
the projections 402 will fit within the slots 411 and will house the cogwheel 400
in a translationally fixed but rotatable manner. The binding 412 can then be slid
over projections in the mounting plate or ski in the same way as for the above examples.
The binding 412 is provided on the underside with flanges or slots or the like, such
that these can interact with extensions on the ski or binding plate and will allow
the binding 412 to slide onto the ski or mounting plate and be held in a desired location,
this being in the forward and backwards direction along the direction of travel of
the ski, on the ski. As will be appreciated, the cogwheel 400 being positioned within
the housing 410 will engage with the slots or ridges on the mounting plate or ski
as the binding 412 is slid into position. The cogwheel 400 can freely rotate at this
point within the slots 411 of the housing 410, and thus the binding 412 can be slid
into interaction with the mounting plate or ski and located at the desired position
on the ski. Desirably, the user could move the binding 412 by hand and will thus be
able to properly position the binding 412 at the desired point on the ski.
[0065] In order to fix the cogwheel 400 within the housing 410 such that it cannot rotate
and the binding 412 cannot move over the surface of the ski or mounting plate, the
rotation of the cogwheel 400 must be stopped. As seen in Figs. 14 and 15, a rotation
lever 405 can be provided, wherein the rotation lever 405 will interact with the cogwheel
400 and stop its rotation and thus fix the binding 412 to the ski. The rotation lever
405 is formed with a generally H structure, such that at one end of the rotation lever
405 some interaction mechanism for stopping the rotation of the cogwheel 400 can be
located. In the design given, the first end of the rotation lever 405 is provided
with toothed extensions 406 which extend toward each other on the inside of the lower
portion of the legs 407. The toothed extensions 406 can be used to interact with an
appropriate structure defined on the cogwheel 400, such that rotation of the cogwheel
400 leads to the same degree of rotation of the rotation level 405.
[0066] In particular, and as is most clearly seen in Fig. 15, the interior portion of the
cogwheel 400 is provided with a hollow axial hole extending through both the projections
402 and the cogwheel 400. Whilst in the example shown the hole extends all the way
through from one side of the cogwheel 400 to the other, it is also possible to have
only appropriately shaped indents within either side of the projections 402 into the
cogwheel 400. As can be seen from Fig. 15, the interior of the hole or indents is
provided with radially projecting internal teeth 403. The internal teeth 403 number
the same as the external teeth 401 on the cogwheel 400, however they extend into the
hole or indent toward the rotation axis of the cogwheel 400. As will be appreciated
from the figures, the toothed extensions 406 on the rotation level 405 can be used
to slot into the hole or indent such that the toothed extensions 406 will properly
integrate with the internal projecting teeth 403, meaning that the cogwheel 400 and
removable rotation lever 405 will rotate as one body. As is clear from the figures,
the rotation lever 405 is structured such that toothed extensions 406 are spaced apart
either with identical width to the cogwheel 400 including projections 402, or are
spaced apart with a slightly narrower distance. As such, when the removable rotation
level 405 is positioned to interact with the cogwheel 400, the legs 407 are under
a slight tension and will thus properly keep the interaction between the removable
rotation lever 405 and the cogwheel 400.
[0067] It is intended that the removable rotation lever 405 be attached into the axial hole
or indents after the binding 412 has been positioned on the ski or mounting plate.
The cogwheel 400 will be free to rotate in the slots 411 without the removable rotation
lever 405 being in place, and thus the binding 412 can be positioned at the correct
section of the ski. Once the ideal position for the binding 412 has been located,
the legs 407 of the rotation lever 415 can be spread apart slightly and the toothed
extensions 406 can interact with the internally projecting teeth 413 in the hole or
indent of the cogwheel 400. As will then be appreciated, movement of the rotation
lever 405 will rotate the cogwheel 400 and will thus lead to movement of the binding
412 over the surface of the ski. The binding 412 can generally only be moved by a
certain amount, which is a factor of the number of teeth 401 and the spacing of the
ridges on the ski or mounting plate.
[0068] In order to properly fix the position of the binding 412, it is necessary to hold
the rotation lever 405 in the desired position. In order to facilitate this holding
of the rotation lever 405, it is possible to put or locate a number, preferably two,
of clips 413 on the upper side of the binding 412. Positioning the clips 413 in such
a manner that they will interact with the cross piece 408 of the "H" of the removable
rotation lever 405, will allow for the rotation lever 405 to be locked in one of two
orientations. Either the rotation lever is generally facing the rear side or end of
the binding 412, or it is facing the front of the binding 412. In transitioning the
rotation lever 405 from each of these two positions locked into the clips 413, it
is clear that the cogwheel 400 will be rotated, and thus the binding 412 will be shifted
over the surface of the ski. It will be appreciated that the rotation lever 405 can
be any shape with two legs for holding the toothed extensions 406 and for interacting
with the clips 413 - the H shape is advantageous, however, in that squeezing of the
upper legs can lead to the widening of the lower legs to allow engagement of the cogwheel
400.
[0069] It will be further appreciated that it could be possible to remove the rotation lever
405, thus allowing the cogwheel 400 to rotate freely again. In this manner, it is
then possible for the user to either adjust the position of the binding 412 on the
surface of the ski or mounting plate, or to completely remove the binding 412 from
the ski or mounting plate. Obviously, by ensuring that the legs 407 of the rotatable
lever 405 are held under tension, ensures that the removable rotation lever 405 will
not easily fall off the binding 412, and thus security and solid positioning of the
binding 412 is assured. As with the above examples it is also possible to provide
the housing 410 and cogwheel 400 as a separate removable cartridge that can be clip-fit
or snapped into the binding 412 as desired. Obviously in such an embodiment the rotation
lever 405 will remain in a removable fashion.
[0070] Fig. 16 shows a further possible structure for the binding 510 for interaction with
a mounting plate or upper surface of a ski. In the same manner as described above,
the ski or mounting plate is provided with a series of notches or ridges in the upper
surface such that the binding 510 can interact therewith. The binding 510 is structured
with appropriate slots on the underside thereof for fixing with flanges or the like
on the mounting plate or ski in a similar manner to that described above, and thus
further discussion will be omitted. Within the binding 510, a toothed interaction
device in the form of a cogwheel 500 is provided. The cogwheel 500 is similar to that
described above for the example given in Figs. 14 and 15, and has a series of radially
extending teeth running along the outer surface thereof. The cogwheel could be provided
in a generally extended cylindrical fashion, wherein the teeth run along the outer
surface in the longitudinal direction whilst projecting outward in the radial direction.
[0071] The cogwheel 500 is held within a housing 503 provided in the binding 510. As is
seen in Fig. 16, the housing 503 can extend above the upper surface of the binding
510 and is structured or positioned such that the extending teeth of the cogwheel
500 will extend below the lower surface of the binding 510 and can thus interact with
the notches or ridges on the ski or mounting plate. In the same manner as above, the
cogwheel 500 is held in a rotatable manner within the housing 503, such that the cogwheel
500 can rotate as the teeth engage with the slots or ridges on the mounting plate
or ski surface as the binding 510 is translationally moved back and forth along the
skiing direction of the ski, In order to fix the cogwheel 500 within the binding,
a bolt element or fastener 502 is provided. The bolt fastener 502 provides a rotational
axis by extending through the cogwheel 500 along the centre rotational axis point.
In order to allow rotation of the cogwheel by the user, a handle 501 is positioned
such that frictional surfaces 505 will interact with the end faces 506 of the cogwheel
500. As will be appreciated, if the frictional surfaces 505 can be engaged with the
end faces 506 of the cogwheel 500, preferably by means of a squeezing force, the handle
501 will form a unit with the cogwheel 500 such that rotation of one will lead to
rotation of the other.
[0072] In the example shown in Fig. 16, the bolt fastener 502 passes through holes 507 provided
in the frictional surfaces 505 of the handle 501. The bolt fastener 502 also passes
through a centre hole of the cogwheel 500 such that tightening of the bolt element
502 will bring the frictional surfaces into pressure and frictional engagement with
the end faces 506 of the cogwheel 500. It will be understood that when the bolt fastener
502 is not tightened, the handle 501 and cogwheel 500 can rotate independently, which
will allow the binding 510 to be positioned on the ski in roughly the desired location.
The handle 501 can then be frictionally engaged with the end faces 506 of the cogwheel
500 by tightening the bolt fastener 502 and leading to a single unit being provided.
In this case, rotation of the handle 501 will lead to rotation of the cogwheel 500
and with interaction between the teeth on the cogwheel 500 and the ridges or slots
in the ski or mounting plate, the position of the binding 510 can be changed over
the surface of the ski. In order to stop rotation of the handle 501 in one of two
orientations, two clips 504 are provided at appropriate positions on the upper surface
of the binding 510. The clips 504 will hold the handle 501 in a clip-fit manner thus
stopping movement of the handle 501 and thus reducing the rotation of the cogwheel
500 and holding the binding 510 at the desired position on the ski or mounting plate.
[0073] As can be seen in Fig. 16, the bolt fastener 502 is provided with an outer tubular
sleeve element which has an internal screw thread. The internal screw thread allows
the screw engagement of a screw piece therein, such that the distance between the
two heads of the bolt fastener can be increased or decreased by rotation of each element.
It will be appreciated that the tubular element could be fixed in a non-rotatable
manner with respect to the cogwheel 500, such that the cogwheel 500 and the outer
tubular element of the bolt fastener 502 move as one. Likewise, it would be equally
possible for the outer tubular element of the bolt fastener 502 to be held in a rotatable
manner within the axial hole of the cogwheel 500, and the frictional engagement between
the frictional surfaces 505 and end faces 506 of the cogwheel 500 lead to the fixing
together of the cogwheel 500 and handle 501.
[0074] If the cogwheel 500 is structured with extensions extending along the axial direction
either side of the rotation axis, as shown in Figs. 14 and 15, the housing 503 can
be structured with an appropriate slot to allow the rotational fixing of the cogwheel
500. In the same way as described for the example given in Figs. 14 and 15, the axial
protrusions will be held within slots of the housing 503 in a rotatable manner, and
thus form the rotation axis between the housing 503 and the cogwheel 500. The end
faces of the extensions or protrusions in the axial direction will then provide the
end faces 506 of the cogwheel 500 for interaction with the frictional surfaces 505
of the handle 501. In this regard, the cogwheel 500 is held in a more rigid fashion
to the binding 510 but the frictional engagement between the handle 501 and the cogwheel
500 is still possible by means of the end faces of these protrusions.
[0075] The present disclosure further relates to the provision of a binding system in which
one or other of the bindings 100,200,300,412 described in Figs. 11-16 are provided
with a mounting plate 110. That is, the specifics of this disclosure also relate to
a proper system comprising both the bindings 100, 200, 300, 412 and the mounting plate
110, which has commercial advantages in that a kit can be sold to the end user. It
is also possible to provide a spacer plate, not shown in the figures, which is positioned
between the mounting plate 110 and one or other of the bindings. The spacer plate
is appropriately structured such that it will interact with the lip 110 or flanges
of the mounting plate 110, in the same manner as the bindings as described above,
but will also present appropriate lip or notches or channels for binding 100, 200,
300 to fix directly to the spacer plate, rather than the mounting plate 110. Obviously,
the spacer can also be provided for interaction with an appropriately structured ski,
if the mounting plate 110 is not to be used.
[0076] The spacer plate will allow the positioning of the binding 100, 200, 300, 412 above
the ski at a slightly higher position than would be possible with just the binding
100, 200, 300, 412 and mounting plate 110 or appropriately structured ski. Further,
the spacer plate does not need to be completely flat, and can in fact be tapered in
one or other direction. Indeed, the taper of the space plate could be such that the
front portion of the binding 100, 200, 300, 412 is positioned closer to the ski, and
the heel of the binding 100, 200, 300, 412 is positioned higher from the upper surface
at the ski. Likewise, the inverse structure can be considered. Further, the spacer
could be tapered in the transverse direction, such that the binding 100, 200, 300,
412 is angled either inward or outward, inward being the direction towards the skier
when using the skis and outward being the opposite direction lying in the transverse
direction of the skis, such that the angle of the binding 100, 200, 300, 412 is changed
with respect to the upper surface of the ski. The spacer plate in this example can
also be provided with the appropriate notches or indents for interacting with the
portions described above in any of the figures, and is not necessarily limited to
use with only the binding shown in Figs. 11-15.
[0077] Whilst features have been presented in combination of the above description, this
is intended solely as an advantageous combination. The above description is not intended
to show required combinations of features, rather it represents each of the aspects
of the disclosure. Accordingly, it is not intended that any described specific combination
of features is necessary for the functioning of the ski binding 1.
[0078] The preferred aspects of the present disclosure may be summarized as follows:
- 1. A binding for a ski, in particular a ski binding for a cross-country or touring
ski, comprising:
a portion which is adapted to interact with the ski, or a mounting plate attached
to the ski, for attaching the binding to the ski in a displaceable manner, such that
the binding can be positioned in a plurality of locations on the ski,
a toothed interaction device which is arranged so as to interact with matching indents
or notches on the ski or on the mounting plate, wherein the interaction of the teeth
of the toothed interaction device with the matching indents or notches on the ski,
or mounting plate, one or more than one of: determines, changes and/or fixes the position
of the binding with respect to the ski.
- 2. The binding of aspect 1, wherein the toothed interaction device is held in a rotatable
manner in the binding such that it can rotate around an axle portion, and wherein
the rotation of the toothed interaction device either:
- a) disengages the teeth from the notches and allows the relative movement between
the binding and the ski, or engages the teeth with the notches and fixes the location
of the binding with respect to the ski; or
- b) moves the binding with respect to the ski by interaction with and/or engagement
between the teeth and the notches.
- 3. The binding of either of aspects 1 or 2, wherein the toothed interaction device
is a cog wheel which comprises an axle through the centre of the cog portion, the
axle being rotatably held at a fixed rotation point within the binding, and wherein
the teeth in the cog extend below the lower side or surface of the binding to interact
with the indents or notches on the ski or mounting plate, such that rotation of the
cog wheel leads to the teeth interacting and engaging with the indents or notches
such that the binding moves forward and backward over the ski, wherein the axis of
rotation of the cog wheel is preferably aligned perpendicular to the longitudinal
axis of the binding.
- 4. The binding of any one of aspects 1 to 3, in particular aspect3, wherein one section
of the outer surface of the cog wheel has no teeth, such that when the cogwheel is
in this setting no teeth protrude below the lower side or surface of the binding.
- 5. The binding of any one of aspects 1 to 4, in particular aspects 1 or 2, wherein
the toothed interaction device has an elongate central portion forming a rotation
axis of the toothed interaction device, and wherein teeth extend out from the elongate
central portion in a plane which is perpendicular to the rotation axis on only one
side of the elongate central portion, and wherein the axis of rotation is preferably
aligned with the longitudinal axis of the binding.
- 6. The binding of any one of aspects 1 to 5, in particular aspect 5, wherein the extending
teeth are semicircular in shape.
- 7. The binding of any one of aspects 1 to 6, in particular aspects 1 or 2, wherein
the toothed interaction device has an elongate central portion forming a rotation
axis of the toothed interaction device, and wherein the teeth are structured as a
worm screw centred on the elongate central portion and wherein the axis of rotation
is preferably aligned with the longitudinal axis of the binding.
- 8. The binding of any one of aspects 1 to 7, in particular aspect 7, wherein the worm
screw is incomplete along one radial section of the toothed interaction device, such
that in one orientation the worm screw portion does not extend below the lower surface
of the binding, thus allowing the binding to be slideably positioned on the mounting
plate or ski by avoiding the indents or notches of the ski.
- 9. The binding of any one of aspects 1 to 8 wherein the toothed interaction device
is provided with an extension, handle, wheel or lever which extends away from the
axis of rotation of the device and allows a user of the binding to rotate the toothed
interaction device.
- 10. The binding of any one of aspects 1 to 9, wherein the binding has one or more
lips or clips which interact with the toothed interaction device and hold the toothed
interaction device in one or more orientations within the binding, in particular where
the one or more lips or clips interact with the extension, handle or lever.
- 11. The binding of any of the previous aspects, in particular either of aspects 1
or 2, wherein the toothed interaction device is a cog wheel which is provided with
teeth extending radially outward from the rotation axis, and wherein the rotation
axis is provided by two circular extensions extending outward from the cog portion
in the axial direction, and wherein the binding is provided with a housing for holding
the cog wheel, wherein the housing extends upward from the top of the binding and
is provided with two slots which match the outer profile of the circular extensions
so that the cog wheel can be held in the housing in a rotatable manner by the slots.
- 12. The binding of any of aspects 1 to 11, in particular aspect 11, wherein the cog
wheel is held by the slots in the housing such that the lower teeth extend below the
lower surface of the binding such that they will interact with the matching indents
or notches.
- 13. The binding of any of aspects 1 to 12, in particular either of aspects 11 or 12,
wherein the cog wheel has either an axial hole running through the cog wheel and circular
extensions or an indent extending axially inward, wherein the internal surface of
the axial hole or indent is provided with a number of radially projecting internal
teeth, preferably the same as the number of external teeth on the cog wheel.
- 14. The binding of any of aspects 1 to 13, in particular aspect 13, wherein the binding
is provided with a removable rotation lever formed with an "H" profile, wherein toothed
extensions are provided at the inner sides of two adjacent legs, wherein the toothed
extensions match the shape of the axial hole or indent in the cog wheel such that
they can be positioned within the axial hole or indent to allow movement of the rotation
lever to move the cog wheel, and thus rotate the cog wheel within the housing of the
binding.
- 15. The binding of any of aspects 1 to 14, in particular aspect 14, wherein the gap
between the toothed extensions is smaller than the width of the cog wheel, such that
after engagement of the rotation lever, the legs are held under tension and hold the
rotation lever to the binding.
- 16. The binding of any of aspects 1 to 15, in particular aspects 14 or 15, wherein
the upper surface of the binding is provided with two clips either side of the housing,
wherein the clips are located and structured to interact with the middle bar separating
the two side legs of the "H" profile rotation lever, so that the lever can be held
in one of two orientations and the binding can thus be positioned in one of two locations
on the ski.
- 17. The binding of any of aspects 1 to 16, in particular either of aspects 1 or 2,
wherein the toothed interaction device is a cog wheel which is provided with teeth
extending radially outward from the rotation axis, and wherein the rotation axis is
provided by a bolt fastener running through the centre axis of the cog wheel, and
wherein the binding is provided with a housing for housing the cog wheel, wherein
the housing extends upward from the top of the binding and is provided with two holes
through which the bolt fastener extends so that the cog wheel can be held in the housing
in a rotatable manner, wherein the holes are large enough such that the entire end
faces of the cog wheel are exposed, and further
wherein a handle is provided which has two friction surfaces with holes there through,
wherein the handle is structured and positioned such that the bolt fastener passes
through the holes and the friction surfaces align with the end faces of the cog wheel
such that with tightening of the bolt fastener the friction surfaces will be held
against the end faces and will ensure that the handle and cog wheel rotate as one.
- 18. The binding of any of aspects 1 to 17, in particular aspect 17, wherein the bolt
fastener is provided with an outer tube element which has an internal screw thread
for mating with a screw element which screw fits within the tube and internal screw,
and wherein the outer tube element and the screw element have bolt or screw heads
which act against the handle to hold this frictionally with the cog wheel.
- 19. The binding of any of aspects 1 to 18, in particular either of aspects 17 or 18,
wherein the upper surface of the binding is provided with one or more clips which
interact with the handle to fix the handle in a desired orientation and thus stop
rotation of the handle and cog wheel and therefore fix the location of the binding
to the ski or mounting plate.
- 20. The binding of any of aspects 1 to 19, in particular of any of aspects 17 to 19,
wherein the cog wheel is provided with circular extensions extending outward in the
from the cog wheel in the axial direction which provide the rotation axis for interacting
with two matching slots in the housing of the binding, wherein the end faces of the
circular extensions provide the interface surface for interacting with the friction
surfaces of the handle.
- 21. The binding of any one of aspects 1 to 20, wherein the long sides of the binding
which will lie approximately parallel, or parallel, with the long sides of the ski
are provided with elongate flanges or lips which form an internal channel for slideably
interacting with elongate matching flanges on the ski or mounting plate, wherein the
elongate flanges or lips are used to hold the binding to the ski or mounting plate,
and wherein the toothed interaction device is used to locate the binding at the desired
location on the ski or mounting plate.
- 22. The binding of any one of aspects 1 to 21, wherein the toothed interaction device
is provided in a separate removable cartridge, which is engagable, preferably in a
clip fit manner, with the binding.
- 23. A binding system comprising:
a mounting plate for attachment to the upper surface of a ski, in particular a cross-country
or touring ski, by glue, or welding or screw fasteners; and
a binding according to any one of the previous claims which slideably attaches to
the mounting plate, wherein
the mounting plate is provided with indents or notches in the top surface thereof
for interacting with the toothed interaction device to allow the positioning of the
binding with respect to the longitudinal direction of the mounting plate.
- 24. The binding system of aspect 23 further comprising a spacer plate, wherein the
spacer plate is positionable between the binding and the mounting plate to increase
the distance at which the binding will be located with respect to the ski to which
the mounting plate is attached, wherein the spacer is provided with appropriate indents
or notches for interacting with the toothed interaction device.
- 25. The binding system of either of aspects 23 or 24, in particular aspect 24, wherein
the spacer has one of:
- a) a completely flat profile such that the whole of the binding is lifted the same
distance from the mounting plate; or
- b) a sloped or wedge shaped profile in the longitudinal direction of the mounting
plate to tip the binding forward or backward; or
- c) a sloped or wedge shaped profile in the width direction of the mounting plate to
tip the binding to one or other side of the ski.