[0001] The present invention relates to a quick-release clip, particularly for wearable
articles.
[0002] In more detail, the present invention may be conveniently used to equip clothing,
backpacks, belts, personal protective equipment or any other type of article which,
in case of need, must be easily and immediately released and taken off from the user's
body.
[0003] For example, in the case of bulletproof vests, it is necessary to provide a system
to immediately remove the vest from the user's body, which can be easily implemented
even in emergency conditions determined by a partial inability of the user to move.
[0004] In fact, especially in the context of using the article for military purposes, the
user in an injured or semi-mobile condition must still be able to release the bulletproof
vest (or backpack or any other type of belt worn by the user) by separating the respective
portions of the vest from each other and thus allowing the article to be easily taken
off from the body.
[0005] For this purpose, it is known to use quick-release clips generally placed at belts
or shoulder straps that are close to the user's body and easy to access, in order
to allow quick release by manual action.
[0006] Such quick-release clips typically consist of two components, each of which is permanently
associated with a part of the article to be separated, and can be reversibly engaged
with each other by means of appropriate mechanical hooking systems. Generally, such
systems are implemented by interlocking surfaces suitably configured to couple and
withstand traction actions under normal conditions of use.
[0007] At least one of the two portions is also equipped with a manual actuator in the form
of a tab and/or cord, adapted to be pulled along a direction transverse to the coupling/decoupling
direction of the two portions. By acting on the actuator, it is therefore possible
to disengage the mechanical interlocking of the two components, allowing them to be
detached and the article to be separated from the user's body.
[0008] An example of the known systems described above is shown in document
US7448116_B1, which describes a quick-release buckle having a male component and a female component
that can be removably coupled to each other by snap engagement. A containment channel
is in fact defined in the female component, configured to engage, sliding along a
predetermined insertion direction, an insert carried by the male component. An engagement
wing obtained on the female component at the containment channel allows the two components
to disengage from each other. The engagement wing can be operated either by pulling
a cord to which it is attached or by accessing a lifting tab protruding from its front
end.
[0009] The Applicant found that known clips of the type described above have major drawbacks
and application limitations.
[0010] In particular, it was observed that the presence of the engagement wing on the female
component inevitably interrupts the structural continuity of the containment channel,
which assumes a substantially C-shaped crosssectional configuration. This structure
shows a certain mechanical yielding so that under rather high stresses, e.g. torsional
stresses accompanied by traction along the insertion direction, it may undergo deformations
resulting in the components undesirably decoupling from each other. In this context,
the male element can slip out of the containment channel, thus leading to accidental
detachment of the male component from the female component, with consequent drawbacks
in terms of safety and tightness of the device.
[0011] The attempt to limit the problems described above leads to strengthen the female
element by choosing suitably rigid materials and relatively high thicknesses. This
results in an undesirable increase in structural size and weight for the same mechanical
strength, together with greater manoeuvring difficulties for release purposes, with
important safety consequences when opening is required in emergency situations.
[0012] It has also been observed that the integration of the engagement wing into the female
component tends to significantly increase the geometric and structural complexity
of the latter, requiring rather complex moulds and tooling for manufacturing it. This
leads to a significant increase in production costs, as well as a considerable limitation
in design freedom. The object of the present invention is to make available a quick-release
clip that can overcome the problems described above.
[0013] In particular, an object of the present invention is to provide a quick-release clip
that offers greater structural strength to stress.
[0014] The object is also to offer a clip that, for the same structural strength, can be
made from a smaller amount of material, which is advantageous in terms of weight,
space requirements and manufacturing costs.
[0015] A further object of the invention is to offer a clip that can simplify the manoeuvres
required for decoupling male and female components from each other.
[0016] A further object is to propose a clip whose design concept offers greater design
freedom to obtain the desired mechanical strength and ability to respond to manoeuvres
aimed at disengaging the male element from the female element.
[0017] In addition, the object is to obtain a clip that can be manufactured at a lower cost,
also thanks to the possibility of using relatively simple moulds and equipment for
producing it.
[0018] More in particular, the subject matter of the present invention is a quick-release
clip, according to claim 1.
[0019] The absence of the engagement wing on the female component gives the latter greater
structural strength, using a lower amount of material and consequent advantages in
terms of weight, overall dimensions and manufacturing costs.
[0020] It is also considered that the positioning of the engagement wing carrying the engagement
tooth on the male component instead of the female component conveniently simplifies
the structure of the latter, without significantly hindering the structure of the
male component. The buckle can therefore be manufactured using simplified moulds,
to the benefit of production cost reduction.
[0021] It is also possible to achieve greater design freedom in the choice of shapes and
thicknesses of materials suitable for offering the necessary strength and optimum
yielding to simplify the release operation, either with the aid of a traction cord
or by means of a manual action directly applied to the engagement wing.
[0022] According to a further aspect, the invention relates to a wearable article comprising
one or more clips according to the foregoing.
[0023] In at least one of the aforesaid aspects, the invention may comprise one or more
of the following preferred features.
[0024] Preferably, the covering wall is configured to fit between the engagement wing and
the plate-like insert.
[0025] Preferably, the covering wall is thicker than a distance between the engagement tooth
and the plate-like insert.
[0026] Preferably, the covering wall is configured to act against the engagement tooth to
elastically move the engagement wing away from the plate-like insert during insertion
of the latter in the containment channel.
[0027] Preferably, the plate-like insert extends overhanging from an attachment portion
of the male component, along an insertion direction in the containment channel.
[0028] Preferably, the plate-like insert has a substantially rectangular shape. Preferably,
the plate-like insert has a substantially trapezoidal shape. Preferably, the plate-like
insert has a wedge-shaped profile in a section plane parallel to the insertion direction.
[0029] Preferably, the containment channel extends from an attachment portion of the female
component, along an insertion direction of the plate-like insert.
[0030] Preferably, the containment channel has an access opening at one end thereof opposite
to the attachment portion of the female component. Preferably, the containment channel
and the plate-like insert have mutually complementary shape.
[0031] Preferably, in a section plane orthogonal to the insertion direction, the containment
channel extends in a closed line around the insertion direction.
[0032] Preferably, the containment channel is delimited between said covering wall, a base
wall parallel to the covering wall, and two lateral walls each extending between the
base wall and the covering wall.
[0033] Preferably, said covering wall, base wall and lateral walls extend one after the
other according to a continuous development in a section plane orthogonal to the insertion
direction.
[0034] Preferably, the lateral walls mutually converge along the insertion direction.
[0035] Preferably, the lateral walls mutually converge towards the attachment portion of
the female component.
[0036] Preferably, the lateral walls are parallel to corresponding lateral edges of the
plate-like insert of the male component.
[0037] Preferably, the base wall and the covering wall converge on each other along the
insertion direction.
[0038] Preferably, the base wall and the covering wall mutually converge towards the attachment
portion of the female component.
[0039] Preferably, the base wall and the covering wall are parallel to corresponding opposite
faces of the plate-like insert of the male component.
[0040] Preferably, the engagement seat is configured to accommodate the engagement tooth
by snap engagement.
[0041] Preferably, the engagement seat is made in the form of an opening passing through
the covering wall.
[0042] Preferably, the engagement seat is arranged close to the attachment portion of the
female component.
[0043] Preferably, the engagement seat has an elongated configuration transverse to the
insertion direction.
[0044] Preferably, the engagement tooth has an elongated configuration transverse to the
insertion direction.
[0045] Preferably, the female component has auxiliary containment walls protruding from
the covering wall in order to define with the latter a housing for the engagement
wing.
[0046] Preferably, the auxiliary retaining walls extend in continuation of the lateral walls
of the containment channel.
[0047] Preferably, stop shoulders projecting in said housing are also provided. Preferably,
said stop shoulders are configured to act against the engagement wing and limit the
translation thereof away from the plate-like insert.
[0048] Preferably, said stop shoulders are obtained in the auxiliary containment walls near
the attachment portion of the female component.
[0049] Preferably, there is also a gripping element carried by the engagement wing.
[0050] Preferably, the gripping element is made in the form of an eyelet protruding from
the opposite side with respect to the plate-like insert and engaging a traction cord.
[0051] Preferably, the engagement wing is joined to the attachment portion by an elastically
deformable interconnection portion.
[0052] Preferably, the interconnection portion has an arcuate profile in a section plane
parallel to the insertion direction.
[0053] Preferably, the interconnection portion is thinner than the engagement wing.
[0054] More features and advantages will appear from the detailed description of a preferred,
but not exclusive, embodiment of a quick-release clip according to the present invention.
Such description will be set forth herein below with reference to the accompanying
drawings, provided for merely indicative and therefore non-limiting purposes, wherein:
- Figure 1 shows in a perspective view the concerned clip with a male component and
a female component mutually connected;
- Figure 2 shows the clip of Figure 1 with the male and female components decoupled;
- Figure 3 shows the male and female components from a different perspective angle;
- Figures 4 to 7 show some steps in the decoupling of the male component from the female
component, sectioned in a plane parallel to an insertion direction;
- Figure 8 shows an example of the clips according to the invention applied to a wearable
article.
[0055] In the above-mentioned figures, a quick-release clip is globally referred to as 1,
in accordance with the present invention. The clip 1 can be conveniently used on wearable
articles 2, e.g. to equip clothing, backpacks, belts, personal protective equipment
or any other type of article 2 that, if necessary, must be easily and immediately
detached and taken off from the user's body. Figure 8 shows, for exemplary purposes,
a bulletproof vest equipped with two clips according to the present invention. The
clip 1 essentially comprises a male component 3 and a female component 4 that can
be snap-fitted together by mutually sliding along a predetermined insertion direction
referred to as Z in the attached figures. Each of said male component 3 and female
component 4, preferably made in a single piece of injection-moulded plastic material,
is suitable to be constrained to a part of the wearable article 2 by means of a respective
attachment portion 3a, 4a, preferably provided with a through-hole through which a
textile tape 5 (Figure 8) is typically engaged and secured to the respective part
of the wearable article 2.
[0056] The male component 3 has a plate-like insert 6 extending overhanging from the respective
attachment portion 3a, along the insertion direction Z. The plate-like insert 6 may
conveniently be substantially rectangular in shape or, as envisaged in the preferred
embodiment shown herein, substantially trapezoidal. It may also be conveniently provided
that the plate-like insert 6 has, in a section plane parallel to the insertion direction
Z, a substantially wedge-shaped profile as better visible in Figures 4 to 7. The female
component 4 in turn has a containment channel 7 extending from the respective attachment
portion 4a along the insertion direction Z. The containment channel 7 is perimetrically
delimited by a covering wall 8, a base wall 9 parallel to covering wall 8, and two
lateral walls 10 each extending between the base wall 9 and the covering wall 8. Said
covering wall 8, base wall 9 and lateral walls 10 extend one after the other according
to a continuous development in a section plane orthogonal to the insertion direction
Z so that, in the same section plane, the containment channel 7 extends according
to a closed line around the insertion direction, as better visible in Figure 3.
[0057] At one end of the containment channel 7 opposite to the attachment portion 4a of
the female component 4, said covering wall 8, base wall 9 and lateral walls 10 define
an access opening 11 through which the containment channel accommodates the plate-like
insert 6 of the male component 3.
[0058] Preferably, the containment channel 7 and the plate-like insert 6 have a mutually
complementary shape. To this end, it can be envisaged that at least within the containment
channel 7, the lateral walls 10 mutually converge along the insertion direction Z,
towards the attachment portion 4a of the female component 4, according to a course
parallel to the corresponding lateral edges 6a of the plate-like insert 6 of the male
component 3. Similarly, at least within the containment channel 7, the base wall 9
and the covering wall 8 may mutually converge along the insertion direction Z, towards
the attachment portion 4a of the female component 4, according to a course parallel
to mutually opposite faces 6b of the plate-like insert 6.
[0059] As clearly visible in the appended figures, the male component 3 further comprises
at least one engagement wing 12 extending from the respective attachment portion 3a,
next to the plate-like insert 6, following a course substantially parallel to the
latter at a short distance therefrom. Preferably, the engagement wing 12 is joined
to the respective attachment portion 3a by means of an elastically deformable interconnection
portion 13, which may conveniently have an arcuate profile in a section plane parallel
to the insertion direction Z. As better visible in Figures 4 to 7, the interconnection
portion 13 can have a small thickness compared to the engagement wing 12, to the benefit
of elastic deformability.
[0060] The engagement wing 12 has, at one end thereof opposite to the attachment portion
3a, at least one engagement tooth 14 protruding towards the plate-like insert 6 and
preferably having an elongated configuration transverse to the insertion direction
Z.
[0061] When inserting the plate-like insert 6 into the containment channel 7, the covering
wall 8 of the female component 4 is inserted between the engagement wing 12 and the
plate-like insert 6. As it is clearly visible from Figure 7, the covering wall 8 has
a thickness greater than a distance between the engagement tooth 14 and the plate-like
insert 6, so that it can act against the engagement tooth 14 to elastically move the
engagement wing 12 away from the plate-like insert 6 during insertion of the latter
into the containment channel 7.
[0062] At least one engagement seat 15 arranged in the covering wall 8 engages in a snap
manner the engagement tooth 14 upon insertion of the plate-like insert 6 in the containment
channel 7. The engagement seat 15, preferably arranged near the attachment portion
4a of the female component 4, can be conveniently made in the form of an opening passing
through the covering wall 8, according to an elongated configuration transverse to
the insertion direction Z, consistently with the shape of the engagement tooth 14.
[0063] The snap engagement of the engagement tooth 14 in the respective engagement seat
15 ensures a stable connection between the male component 3 and the female component
4, which is able to withstand even high tensile forces that tend to pull the plate-like
insert 6 out of the containment channel 7. The mutually complementary shape of the
plate-like insert 6 and the containment channel 7 can further favour the stability
of the connection. In addition, the continuous development in a closed line of the
base walls 9, covering walls 8 and lateral walls 10 defined by the containment channel
7 around the plate-like insert 6 favours optimum mechanical strength in the absence
of significant deformations even upon high torsional stresses around the insertion
direction Z.
[0064] If required, it is possible to decouple the male component 3 from the female component
4 very easily and immediately. To this end, it may be conveniently provided that the
engagement wing 12 carries a manually activated gripping element 16 to cause it to
move away from the plate-like insert 6, and the consequent disengagement of the engagement
tooth 14 from the engagement seat 15. In the preferred example shown, this gripping
element 16 is defined by an eyelet arranged on the side opposite to the plate-like
insert 6, for engaging a traction cord 17. As clearly shown in Figures 3 to 7, acting
on the traction cord 17 causes elastic deformation of the engagement wing 12 resulting
in disengagement of the engagement tooth 14 from the respective engagement seat 15.
At the same time, the traction exerted on the cord 17 favours the extraction of the
plate-like insert 6 from the containment channel 7 and the consequent separation of
the male component 3 from the female component 4.
[0065] In order to preserve the engagement wing 12 from accidental impact and/or interference
with external objects, the female component 4 may conveniently have auxiliary containment
walls 18 protruding from the covering wall 8, preferably as a continuation of the
lateral walls 10 of the containment channel 7, in order to define with the covering
wall itself a housing 19 for the engagement wing 12 when the male component 3 and
the female component 4 are mutually engaged.
[0066] Stop shoulders 20 projecting into the housing 19, for example obtained in the auxiliary
containment walls 18 near the attachment portion 4a of the female component 4, and
configured to act against the engagement wing 12 and limit its translation away from
the plate-like insert 6, can also be provided. The engagement wing 12 is thus preserved
from undesirable overstress, such as in the event of excessive force being applied
via the traction cord 17.
1. Quick release clip, comprising
a male component (3) carrying a plate-like insert (6);
a female component (4) having a containment channel (7) configured to accommodate
the plate-like insert (6) along an insertion direction (Z);
wherein the male component (3) also includes an engagement wing (12) extending next
to the plate-like insert (6) and carrying an engagement tooth (14) protruding towards
the plate-like insert itself;
and wherein the containment channel (7) is delimited by a covering wall (8) which
has an engagement seat (15) configured to engage the engagement tooth (14).
2. Clip according to claim 1, wherein the covering wall (8) is configured to enter between
the engagement wing (12) and the plate-like insert (6).
3. Clip according to claim 1 or 2, wherein the covering wall (8) is configured to act
against the engagement tooth (14) to resiliently move the engagement wing (12) apart
from the plate-like insert (6) during insertion of the latter in the containment channel
(7).
4. Clip according to one or more of the preceding claims, wherein at least one of said
plate-like insert (6) and containment channel (7) extends overhanging from an attachment
portion (3a, 4a) of the male component (3) and, respectively, the female component
(4), along said insertion direction (Z).
5. Clip according to one or more of the preceding claims, wherein in a section plane
orthogonal to the insertion direction (Z), the containment channel (7) extends along
a closed line around the insertion direction (Z).
6. Clip according to one or more of the preceding claims, wherein the containment channel
(7) is delimited between said covering wall (8), a base wall (9) parallel to the covering
wall (8), and two lateral walls (10) extending each between the base wall (9) and
the covering wall (8).
7. Clip according to one or more of the preceding claims, wherein the female component
(4) has auxiliary containment walls (18) projecting from the covering wall (8) to
define with the latter a housing (19) for the engagement wing (12).
8. Clip according to one or more of the preceding claims, further comprising stop shoulders
(20) projecting into said housing (19), configured to act against the engagement wing
(12) and limit its translation away from the plate-like insert (6).
9. Clip according to one or more of the preceding claims, further comprising a gripping
element (16) carried by the engagement wing (12), the gripping element (16) being
made in the form of an eyelet protruding from the opposite side with respect to the
plate-like insert (6) and engaging a traction cord (17).
10. Clip according to one or more of the preceding claims, wherein the engagement wing
(12) is joined to the attachment portion (3a) of the male component (3) by an elastically
deformable interconnection portion (13).
11. Wearable article, comprising at least one clip (1) according to one or more of the
preceding claims.