CH698981B1 - Bracelet clasp i.e. folding arm type clasp, length adjusting device for e.g. diving watch, has frame carrying control unit that is movable in transversal direction, acts on locking unit when control unit is activated, and displaces support - Google Patents

Bracelet clasp i.e. folding arm type clasp, length adjusting device for e.g. diving watch, has frame carrying control unit that is movable in transversal direction, acts on locking unit when control unit is activated, and displaces support Download PDF

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Publication number
CH698981B1
CH698981B1 CH20282005A CH20282005A CH698981B1 CH 698981 B1 CH698981 B1 CH 698981B1 CH 20282005 A CH20282005 A CH 20282005A CH 20282005 A CH20282005 A CH 20282005A CH 698981 B1 CH698981 B1 CH 698981B1
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CH
Switzerland
Prior art keywords
support
clasp
frame
bracelet
control
Prior art date
Application number
CH20282005A
Other languages
French (fr)
Other versions
CH698981B8 (en
Inventor
Joseph Lassigne
Original Assignee
Taramax S A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taramax S A filed Critical Taramax S A
Priority to CH20282005A priority Critical patent/CH698981B8/en
Publication of CH698981B1 publication Critical patent/CH698981B1/en
Publication of CH698981B8 publication Critical patent/CH698981B8/en

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Classifications

    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CJEWELLERY; BRACELETS; OTHER PERSONAL ADORNMENTS; COINS
    • A44C5/00Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18Fasteners for straps, chains or the like
    • A44C5/22Fasteners for straps, chains or the like for closed straps
    • A44C5/24Fasteners for straps, chains or the like for closed straps with folding devices
    • A44C5/246Fasteners for straps, chains or the like for closed straps with folding devices having size adjusting means

Abstract

The device has a set of tabs (8, 9) with a support (61) movable relative to an elongated frame (2) and connected to the frame to permit translation of the support in a longitudinal direction of the device to take one of stable positions. The frame carries a locking unit to stabilize the support in each position, and a control unit (59) movable in a direction transversal to a plane of the device. The unit (59) acts on the locking unit when the unit (59) is activated, and displaces the support. The locking unit has a finger (57) higher than lateral clamps (56), and dentures (64) with teeth (65). An independent claim is also included for a bracelet clasp comprising a cover.

Description


  Technical area

  

The present invention relates to a setting device to be inserted in its length between two free ends of a bracelet to adjust the length. This device has a predefined width and an adjustable length defining a general plane, first and second attachment means respectively to the first and second free ends of the bracelet being provided. More specifically, the first and second attachment means have a relative distance that can be modified to adjust the length of the device.

State of the art

  

[0002] Adjustable length devices of this type are known from the state of the art.

  

Patent CH 653 226 discloses a wristwatch for timepieces of the type with folding blades. Each of the two blades of the clasp has a first end, free, intended to be connected to a free end of a bracelet and a second end to be connected to the second end of the other blade. The second end of a first blade carries two lateral pivots provided to cooperate with one or the other of several recesses formed, in the longitudinal direction of the clasp, on the second end of the other blade to allow adjustment of the length of the clasp.

  

A major disadvantage of this clasp is that it requires removing the corresponding timepiece wrist carrier to achieve the adjustment of its length. Thus, it may be necessary to do it several times before getting the right setting. In addition, the manipulations to be made to move from one position to another are not easy.

Disclosure of the invention

  

The present invention is intended to overcome the disadvantage of the aforementioned prior art by providing a device for adjusting the length, in particular of a watch strap, having means for allowing this adjustment to be made. very simple way, from one position to another, while ensuring good stability of the device in each of these positions.

  

Another object of the device according to the present invention is to provide a compact structure, adapted to be associated with a conventional type of clasp bracelet without increasing the size considerably.

  

For this purpose, the invention relates to a control device of the type mentioned above, characterized in that it comprises an elongate frame carrying, on a first side, the first attachment means, and, d a second side opposite to the first side in the longitudinal direction of the device, a support element of the second movable attachment means with reference to the frame, the support element being connected to the frame so as to allow its translation substantially in the direction longitudinal device to take one or the other of a plurality of stable positions.

   The device is also characterized in that the frame carries locking means intended to ensure the stabilization of the support element in each of the stable positions, and in that the frame carries a movable control member in a transverse direction. in the general plane of the device and arranged to act on the locking means, when actuated, and allow a displacement of the support member.

  

With these special features, the adjustment device according to the present invention allows easy adjustment of the length of a bracelet in which it is integrated. In addition, the stability of the different positions associated with different lengths is reliably ensured.

  

Preferably, the locking means comprise at least one toothing extending substantially in the longitudinal direction of the device and a claw arranged to cooperate with the toothing, to lock the position of the support member with reference to the frame.

  

The control member and the claw can be pivotally mounted on the frame, being arranged on either side of the support member. The latter comprises an opening, in this case, to allow the transmission of pressure exerted on the control member to the claw and unlock the support member to allow movement.

  

In a preferred embodiment, the adjustment device according to the present invention can be integrated in a folding clasp type folding blades, the latter being housed under a cover or cover in a folded configuration. This cover then advantageously fulfills the function of frame for the adjustment device.

  

In general, the adjustment device may have a small thickness for its integration in such a clasp without increasing the thickness excessively.

Brief description of the drawings

  

Other features and advantages of the present invention will appear more clearly on reading the detailed description of the present invention which follows, with reference to the accompanying drawings given by way of non-limiting examples and in which:

  

[0014] - FIG. 1 is a perspective view of a clasp of the folding leaf type incorporating a device for adjusting the length of the bracelet in which the clasp is intended to be inserted, according to a preferred embodiment of the invention;

  

[0015] - FIG. 2 is an exploded view of the clasp of FIG. 1 showing the components of the device according to this preferred embodiment of the present invention.

Mode (s) of realization of the invention

  

FIG. 1 is a perspective view of a clasp 1 of the folding leaf type, apparently conventional, intended to be connected to two free ends of a bracelet (not shown) to ensure closure. The clasp is shown in its closed or folded configuration.

  

It comprises a lid or cover 2 in which are accommodated folding blades (more clearly visible in Figure 2) in this closed configuration of the clasp. The cover 2 comprises an elongated and slightly curved upper face 3 defining a general plane of the clasp and delimited by two lateral faces 4. Each of these lateral faces 4 has a control button 5 to release the clasp mechanism and to pass the clasp. from its closed configuration to an open configuration in a manner similar to what is known in the state of the art.

  

The clasp 1 shown, by way of nonlimiting illustration, is intended to be adapted to a metal bracelet and comprises first means of attachment to the bracelet, in the form of a first leg 6 disposed on a first side of the cover. The first tab 6 has a through hole 7 for receiving a bracelet attachment rod (not shown) housed in a suitable hole of the corresponding free end of the bracelet.

  

The clasp 1 comprises second means of attachment to the bracelet, in the form of a second and a third lugs 8 and 9 arranged opposite one another on the opposite side to the first side, in the longitudinal direction of the clasp. The tabs 8, 9 have through holes 10 aligned with each other and intended to receive a bracelet attachment rod (not shown) housed in a suitable hole of the corresponding free end of the bracelet.

  

FIG. 2 shows an exploded perspective view of the clasp 1 to better expose the structure and operation of an adjusting device according to a preferred embodiment of the present invention.

  

The folding blade mechanism is of known type and will be described quickly to the extent that it does not constitute the heart of the invention. It comprises a double blade formed of two identical elements, elongated and slightly curved. The length of each of the elements 20 is of the same order as that of the hood 2, while its width is slightly less than one third of that of the hood.

  

A first end of each of the elements 20 comprises a cylinder 21 for fixing the cover 2 of the clasp having a through hole 22 intended to cooperate with a bar 23. The latter has a length substantially equal to that of the cover and is adapted for also be inserted into corresponding holes 24 thereof and ensure the connection of the elements 20 to the latter.

  

The second end 25 of each of the elements 20 has a through hole 26 for cooperating with another bar 27 to make these ends 25 integral with one another.

  

The bar 27 is also adapted to engage in a tube 28 housed in a hole 29 formed in a first end 30 of a second blade 31 of the clasp, the latter being disposed between the elements 20. Thus, the second blade 31 is integral with the elements 20 by its first end 30, while being able to pivot relative thereto around the bar 27. The second blade 31 has a shape and dimensions similar to those of the elements 20. By elsewhere, the second blade 31 carries, at its second end, the tab 6 which has been described in connection with the description of FIG. 1. Thus, it is expected that the second blade 31 ensures the connection of the clasp to a bracelet by its second end.

  

The elements 20 and the second blade 31 are shown in FIG. 2, in relative positions that correspond to the closed or folded configuration of the clasp 1. It is understood that, conventionally, the clasp can be opened by a first rotation of the cover, and therefore of the double blade, around the bar 27 , the second blade remaining fixed, then by a second simultaneous rotation of the elements 20 around the bar 23 and the second blade 31 around the bar 27. Thus passes to the open configuration of the clasp in which its blades are deployed, this which makes it possible to increase the length of a bracelet, in particular to put it on a wrist.

  

By way of illustration, it is shown in FIG. 2, a locking assembly of the folding blades to ensure the stability of the closed configuration of the clasp 1.

  

The locking assembly comprises a locking mechanism secured to the cover 2 and for retaining a stud 32, in a predefined position near the hood, the stud being driven into the second blade 31. For this purpose, the latter has a head 33 in conventional form of mushroom. The locking mechanism comprises a base structure comprising two plates 34 and 35 made integral with the cover by means of a plurality of screws 36 and, secured to one another by means of additional screws 37.

  

The control buttons 5 are provided to actuate the locking assembly and release the stud 32 of the locking mechanism. For this purpose, each of the control buttons 5 is extended by an extension 38 having a notch 39 and is arranged between the two plates 34 and 35, being pushed towards the corresponding side face of the cover, under the effect of a spring 40. When the locking mechanism is assembled in the hood, the clasp being in its closed configuration, the notches 39 of the respective control buttons 5 are brought close to each other and accessible by respective openings 41, 42 of the platelets 34, 35. These openings being formed in the plates opposite the position of the pad 32, the head of the latter can engage in the openings to be blocked by the notches.

   The control buttons 5 are then arranged projecting relative to the respective lateral faces of the cover. When a user exerts pressure on the control buttons, he brings them closer to one another, which causes the notches 39 to move relative to each other, thus freeing the head 33 of the stud 32, and thus the opening of the clasp 1.

  

It is noted in FIG. Andthat the conventional type arrangement of the clasp components provides sufficient space to accommodate a length adjustment device according to the present invention. The applications of such a device are multiple. For example, the possibility of making a fine adjustment of the length of a bracelet, without having to use a tool, in cases where the adjustment by adding / removing links is not sufficiently precise. Another possible application of the device according to the present invention relates to the implementation of the adjustment device on a particular type of wristwatch, namely on a watch for a plunger. It is common to provide a device for extending the length of the strap on such watches to allow them to be worn over a diving suit.

  

The length adjustment device comprises a support element 50 fixedly mounted on the frame 2 by means of two pairs of screws 51 and 52. The screws 52 have a longer length than the screws 51 to allow providing a pivot connection to the frame of a locking element 53. The latter comprises a base 54, having two cylinders 55, intended to cooperate with the screws 52 and, from which extend in the direction of the hood, two lateral claws 56 and a finger 57 of height greater than that of the claws. A spring 58 is interposed between the support element 50 and the base 54 to exert a force on the finger 57 tending to push it towards the hood.

  

Furthermore, the finger 57 has a height sufficient to cooperate with a control member 59 mounted in the upper face 3 of the cover by means of a hinge in which is engaged a rod 60. Thus, a force exerted on the control member by a user acts against the spring 58 to bring the claws 56 and the finger 57 of the support element 50 together.

  

A support member 61 carrying the second and third tabs 8 and 9 is provided to interact with the claws 56 and allow the adjustment of the length of the device according to the present invention. The support member 61 comprises an elongated plate 62, of curvature and width similar to those inside the cover 2. The plate 62 has a substantially rectangular and closed opening 63 in which the finger 57 of the locking element 53 is engaged when the assembly is assembled.

  

Thus, the finger 57 can cooperate with the control member 59 through the opening 63 and further fulfill a stop function for the support member 61 when pulled out of the hood 2, since the opening 63 is closed.

  

The plate 62 of the support member is provided with two teeth 64 formed on either side of the opening 63, on the face of the plate oriented in the direction of the claws 56 of the locking element 53 The teeth 64 extend in the longitudinal direction of the clasp and are adapted to cooperate with the claws 56 when the control member 59 is in its rest position, that is to say in the general plane of the face. upper clasp.

  

It is noted in Figure2que each of the teeth 64 has teeth 65 asymmetrical profile, the edge of each of the teeth located on the side of the tabs 8 and 9 of the strap attachment being substantially perpendicular to the longitudinal direction of the clasp, while the other edge has a large inclination.

  

With these characteristics, when the control member 59 is in its rest position, the cooperation of the teeth with the claws prevents any displacement of the support member 61 tending to drive it out of the clasp. Pressure on the control member 59 transmitted to the base 54, via the finger 57, causes the claws 56 to move away with reference to the teeth 64 and the release of the support member 61. The latter can then be pulled towards the outside of the hood to increase the distance between the tabs 8, 9 for attaching a bracelet strand to the fastening tab 6 of the other bracelet strand.

  

Conversely, if the user exerts a force on the support member tending to push in the hood 2, the inclined edges of the teeth 65 act on the claws 56 to rotate the locking member 53 by compressing the spring 58, even if no action is exerted on the control member 59. In this case, the locking element 53 acts on the support member 61 in the manner of a pawl to define stable positions . Thus, the adjustment device according to the present invention can be shortened by a simple pressure on the support member, from the fastening lugs 8 and 9, in the direction of the clasp.

  

In the preferred embodiment which has just been described, the cap 2 of the clasp forms a frame for the length adjustment device, while the support member 61 carries attachment means to the wristband while being mobile with respect to the clasp. Thus, the adjustment device makes it possible to directly adjust the length of the clasp 1 in this embodiment. It appears from fig. 2the integration of the adjustment device in the clasp 1 does not lead to an excessive increase in the thickness of the latter. The hood whose main function is the concealment of the folding blade mechanism also makes it possible to mask the length adjustment device advantageously.

  

Furthermore, the control member 59 preferably has a small thickness to be integrated in the upper face of the cover without inducing excessive thickness of the cover. This particular arrangement also provides great ease of handling because the surface of the control member 59 can be adapted to the dimensions of the cover in the general plane of the clasp and not along one of its lateral faces as is the case for the control buttons 5 of the folding blades. In addition, the respective manipulations, on the one hand, of the control member 59 and, on the other hand, the control buttons 5 are very clearly differentiated from one another.

   Thus, the user of a bracelet clasp provided with an adjustment device according to the invention is not likely to confuse the two types of control member or manipulate them simultaneously inadvertently.

  

This adjustment device allows a user to easily adjust the length of his bracelet, without resorting to any tool, without having to remove his bracelet from his wrist. For example, one can simply pull the support member out of the hood until the finger 57 is disposed in abutment against the bottom of the opening 63, whether the bracelet is already worn or not. It then suffices to keep the clasp stationary while exerting pressure on the support element in the direction of the hood, to make it enter the latter, by sliding the teeth 64 on the claws 56 retracting, until the length of the bracelet reaches the level desired by its wearer.

  

The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration, the invention being not limited, for example, to the implementation of the adjustment device in combination with a clasp, whether with folding blades or any other suitable type. In particular, it is possible to provide that the device according to the invention is integrated into an elastic strap that does not have a clasp, to improve its comfort. In this case, the device comprises its own means of attachment to the bracelet, such as the tabs 8 and 9, an element similar to the tab 6 of the clasp being also formed directly on the frame of the device.

  

Similarly, it can be provided that the teeth are disposed on the locking member 53 while the claws are disposed on the support member 61 without departing from the scope of the present invention. It could also provide the device with a single toothing associated with a single claw, alternatively.

  

The skilled person will not encounter any particular difficulty to make a number of additional current adaptations for the adjustment device to meet its own needs, without departing from the scope of the invention.

Claims (13)

1. An adjustment device having a predefined width and an adjustable length defining a general plane (3) of the device and, intended to be inserted in its length between two free ends of a bracelet, the device comprising first (6) and second (8, 9) attachment means respectively to said first and second free ends of the bracelet, said first and second attachment means having a relative distance which can be varied to adjust the length of the device, characterized in that it comprises an elongate frame (2) carrying, on one side, said first attachment means (6), and a second side opposite to said first side in the longitudinal direction of the device, a support member (61). ) said second attachment means (8, 9) movable with reference to said frame,
 said support member being connected to said frame so as to allow its translation substantially in said longitudinal direction of the device to take one or the other of a plurality of stable positions, in that said frame further carries locking means (56, 57, 64, 65) for stabilizing said support member in each of said stable positions, and in that said frame carries a control member (59) movable in a direction transverse to said general plane (3) of said device and arranged to act on said locking means, when actuated, and allow movement of said support member.
2. Device according to claim 1, characterized in that said control member (59) and said locking means (56, 57, 64, 65) are arranged on either side of said support member, the latter having a central opening (63).
3. Device according to claim 1 or 2, characterized in that said control member (59) is arranged to be actuated by pressure from a rest position in which it is held by elastic means (58).
4. Device according to claim 3, characterized in that said control member (59) is connected to said frame (2) by means of a hinge.
5. Device according to any one of the preceding claims, characterized in that said support member (61) comprises at least one first toothing (64) extending substantially in said longitudinal direction, said locking means comprising at least one claw (56) arranged to cooperate with said toothing, in a rest position, and to release it when said control member (59) is actuated, and in that elastic means (58) are provided for exerting on said claw (56). ) a force tending to maintain it in its rest position.
6. Device according to claim 5, characterized in that said first toothing (64) has asymmetrical teeth (65) oriented so that the device can be shortened in the absence of an action on said control member ( 59).
7. Device according to claim 5 or 6, characterized in that said support member (61) comprises a second toothing (64) similar to said first toothing and arranged in a direction substantially parallel to the latter, a second claw (56). being arranged to cooperate with said second toothing, in a rest position, and to release it when said control member (59) is actuated.
8. Device according to any one of claims 5 to 7, characterized in that said claw (s) (56) are integral with a base (54) pivotally mounted on said frame (2), and in that a finger (57) extends from said base towards said control member (59), the latter exerting pressure on said finger when actuated.
9. Device according to claims 2 and 8, when said support member (61) comprises a first and second set of teeth (64), characterized in that said central opening (63) is formed between said first and second sets of teeth, and it has a closed contour to form a stop for cooperating with said finger (57) and define a maximum length of the device.
10. Clasp (1) bracelet comprising an adjustment device according to any one of the preceding claims.
11. Clasp bracelet according to claim 10, comprising a cover (2) for accommodating folding blades (20, 31), characterized in that said cap forms a frame for said adjustment device.
12. Clasp bracelet according to claim 11, characterized in that it comprises locking means (39, 32, 33) of said folding blades (20, 31) actuated by at least one additional control member (5), and in that said additional control member is arranged to be actuated in a direction lying in a plane substantially parallel to said general plane (3) of said adjusting device.
13. Bracelet comprising an adjusting device according to any one of claims 1 to 9.
CH20282005A 2005-12-21 2005-12-21 Length adjustment device for a bracelet, bracelet clasp and bracelet provided with such a device. CH698981B8 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH20282005A CH698981B8 (en) 2005-12-21 2005-12-21 Length adjustment device for a bracelet, bracelet clasp and bracelet provided with such a device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH20282005A CH698981B8 (en) 2005-12-21 2005-12-21 Length adjustment device for a bracelet, bracelet clasp and bracelet provided with such a device.

Publications (2)

Publication Number Publication Date
CH698981B1 true CH698981B1 (en) 2009-12-31
CH698981B8 CH698981B8 (en) 2010-06-15

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CH20282005A CH698981B8 (en) 2005-12-21 2005-12-21 Length adjustment device for a bracelet, bracelet clasp and bracelet provided with such a device.

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2868222A1 (en) * 2013-11-01 2015-05-06 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP2875747A1 (en) * 2013-11-25 2015-05-27 Dexel S.A. Bracelet clasp comprising a device for adjusting the useful length of the bracelet
EP3170420A1 (en) 2015-11-20 2017-05-24 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP3292784A1 (en) 2016-09-12 2018-03-14 Ball Watch Company SA Watch strap clasp
EP3417734A1 (en) 2017-06-21 2018-12-26 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP3417735A1 (en) 2017-06-21 2018-12-26 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
WO2018234474A1 (en) 2017-06-21 2018-12-27 Dexel S.A. Band clasp comprising a device for adjusting band length

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105476200B (en) * 2015-12-15 2017-09-01 裘里斯杨 A kind of scalable table is buckled

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2868222A1 (en) * 2013-11-01 2015-05-06 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP2875747A1 (en) * 2013-11-25 2015-05-27 Dexel S.A. Bracelet clasp comprising a device for adjusting the useful length of the bracelet
WO2015075253A1 (en) * 2013-11-25 2015-05-28 Dexel S.A. Bracelet clasp comprising a device for fine adjustment of the useful length of the bracelet
CN105899098A (en) * 2013-11-25 2016-08-24 德克赛尔股份公司 Bracelet clasp comprising a device for fine adjustment of the useful length of the bracelet
CN105899098B (en) * 2013-11-25 2018-07-03 德克赛尔股份公司 Bangle retaining ring including being used for the device for fine-tuning bangle effective length
EP3170420A1 (en) 2015-11-20 2017-05-24 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP3292784A1 (en) 2016-09-12 2018-03-14 Ball Watch Company SA Watch strap clasp
EP3417734A1 (en) 2017-06-21 2018-12-26 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP3417735A1 (en) 2017-06-21 2018-12-26 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
WO2018234474A1 (en) 2017-06-21 2018-12-27 Dexel S.A. Band clasp comprising a device for adjusting band length

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