Wristband hasp

Abstract

The utility model relates to a superposed hasp type wrist strap hasp, which comprises a base element, a first long edge and a second long edge of the base element are respectively formed by a first beam and a second beam; at least one blade which is pivotable and is hinged to the first short edge and / or the second short edge of the base element; and at least one cover pivoted and hinged to the blade, the cover being arranged to overlap on the base element and to be retained on the base element in response to a flexible member associated with the latching and unlatching mechanism, the flexible member acting on the base element and the at least one cover to allow the at least one cover to be hooked to and unhooked from the base element. The base element comprises a first opening and a second opening coupled to the first beam and the second beam such that they constitute a flexible member, a pressure simultaneously exerted on each of the beams in a direction transverse to the hasp causing an elastic deformation of the beams and causing the at least one cover to unlatch from the base element, therefore, a wearer is allowed to open the hasp.

Description

Technical Field

[0001] The utility model relates to the field of buckles of overlapping buckle type, whether the buckle is equipped with two blades or a single blade, the blade or blades being hinged on a base element. Background Art

[0002] A clasp of the folding clasp type is known in the prior art, comprising: a substantially rectangular base element, the first and second long sides of which are formed by a first beam and a second beam respectively; and a first blade and a second blade, which are pivotable and hinged on the first and second sides of the base element, the blades being arranged to fold over the base element and to be retained on the base element in response to elastic means associated with a latching and unlatching mechanism, which act on the base element and the blades to allow the first blade and the second blade to be hooked to the base element and unhooked, respectively.

[0003] Document EP 1 925 227 discloses a clasp formed by a base and two leaves arranged to be superposed on the base and to be retained on the base in response to elastic means consisting of one or two helical springs.

[0004] In order to avoid this spring or these springs and to simplify the construction of the buckle, document CH 703294 proposes a buckle consisting of a base element on which the two leaves can be folded down and remain hooked by acting on the elasticity contained in the beam forming the base element. By pressing on a pusher formed in one piece with the beam, the leaves no longer hook and the buckle can be opened.

[0005] The solution proposed by document CH 703294 does not allow, while ensuring good structural rigidity of the base element, to give the beams forming this element the necessary elasticity, such elasticity being required to properly retain the blades on the base element and to allow them to be released when forces are exerted on said beams. Utility Model Content

[0006] The purpose of the utility model is in particular to overcome the various disadvantages of the prior art buckles.

[0007] More specifically, the object of the present invention is to provide a buckle with a simple and reliable construction, which at the same time has good rigidity to avoid accidental opening.

[0008] To this end, the utility model relates to a wristband buckle of the overlapping buckle type, the buckle comprising: a base element, a first long side and a second long side of the base element are respectively formed by a first beam and a second beam; at least one blade, the at least one blade is pivotable and hinged on the first short side and / or the second short side of the base element; and at least one cover, the at least one cover is pivoted and hinged on the at least one blade, the at least one cover is arranged to be overlapped on the base element and is retained on the base element in response to a flexible member associated with a latching and unlatching mechanism, the flexible member acting on the base element and the at least one cover to allow the at least one cover to be hooked to the base element and unhooked.

[0009] According to the present invention, the base element comprises a first opening and a second opening, the first opening and the second opening being coupled to the first beam and the second beam so that the first beam and the second beam constitute a flexible member, and pressure simultaneously applied to each of the beams in a direction transverse to the buckle causes elastic deformation of the beams and causes at least one cover to be unlatched from the base element to allow the wearer to open the buckle.

[0010] According to other advantageous variations of the utility model:

[0011] - the latching and unlatching mechanism comprises at least a first hook and a second hook carried by at least one cover, arranged to clip onto at least a first latch and a second latch carried by a first beam and a second beam, respectively;

[0012] - the first beam and the second beam carry the first pusher and the second pusher respectively;

[0013] - the first and third latches are placed adjacent to each other on either side of the first pusher, and the second and fourth latches are placed on either side of the second pusher;

[0014] - the first opening and the second opening have a length that is less than the length of the base element and greater than the total length of the pusher and the latch;

[0015] - the first, second, third and fourth latches and the first and second pushers form a one-piece element with the base element;

[0016] - the buckle comprises a support element provided on the beam and arranged to cooperate with the rib when pressure is exerted on the pusher, thereby limiting the maximum travel of the pusher and limiting the deformation of the beam so as not to exceed a plastic deformation threshold;

[0017] - the rib is integral with the base element and is formed adjacent to the opening;

[0018] - the support element is integral with the beam and is placed on the back of the pusher;

[0019] - the supporting elements each have a lower inclined plane oriented towards the inside of the buckle and arranged to cooperate with the rib;

[0020] - the supporting elements each comprise an upper inclined plane oriented towards the outside of the buckle and arranged to cooperate with the cover;

[0021] - the base element, the first and second blades and the first and second covers are made of a ceramic-filled plastic material;

[0022] - One of the ends of the first cover is fixed to a first strand or section of the wristband and one of the ends of the second cover is fixed to a second strand or section of the wristband.

[0023] The utility model also relates to a wristband equipped with the buckle according to the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features and advantages of the present invention will become apparent from a reading of the following detailed description given by way of non-limiting example with reference to the accompanying drawings, in which:

[0025] - Figure 1 An exploded perspective top view of a buckle according to a first embodiment of the utility model is shown;

[0026] - Figure 2 An exploded perspective bottom view of a buckle according to a first embodiment of the utility model is shown;

[0027] - Figure 3 A top view of the buckle according to the first embodiment of the utility model is shown in a closed position;

[0028] - Figure 4 The buckle according to the first embodiment of the utility model is shown along the Figure 3 A cross-sectional view of line BB;

[0029] - Figure 5a and Figure 5b Detailed views of the interior and exterior of a buckle according to a first embodiment of the present invention are respectively illustrated;

[0030] - Figure 6 An exploded perspective view of a buckle according to a second embodiment of the present invention is shown. DETAILED DESCRIPTION

[0031] Figure 1 and Figure 2 is an exploded perspective view of a wristband clasp of the overlapping clasp type.

[0032] In the remainder of the description, the term "lower portion" refers to the clasp portion arranged to rest against the wrist of the wearer, whereas the term "upper portion" refers to the clasp portion arranged to be accessible to the wearer from the outside.

[0033] The buckle comprises a substantially rectangular base member 10. As shown, the base member 10 has a slight curvature to accommodate the curvature of the wearer's wrist.

[0034] The base element 10 comprises a first long side and a second long side respectively formed by a first beam 1 and a second beam 2. The buckle further comprises a first leaf 3 and a second leaf 4, which are pivotally mounted about a first rod 20 and a second rod 21 respectively and are hinged on a first short side and a second short side of the base element 10.

[0035] like Figure 4 As illustrated in FIG. 8 , the blades 3 and 4 are arranged to be superimposed on the base element 10 , and more specifically inside the base element 10 .

[0036] The buckle also includes a first cover 5 and a second cover 6, which are pivotable and hinged on the first blade 3 and the second blade 4 around rods 22 and 23 respectively, and the rods 22 and 23 pass through connecting elements 51 and 61 integral with the covers. The covers 5 and 6 are arranged to overlap on the base element 10.

[0037] The covers 5 and 6 are held in a folded position on the base element 10 in response to elastic means associated with a latching and unlatching mechanism, which acts on the base element 10 and the covers 5, 6 to allow the first cover 5 and the second cover 6 to be hooked to the base element 10 and unhooked, respectively.

[0038] According to the present invention, the base element 10 includes a first opening 11 and a second opening 12 , which are coupled to the first beam 1 and the second beam 2 and are positioned at the base of the first beam 1 and the second beam 2 .

[0039] Due to these openings 11 , 12 , the beams 1 , 2 form flexible members, while pressure exerted on each of the beams 1 , 2 causes elastic deformation of the beams 1 , 2 and causes the covers 5 , 6 to be unlatched from the base element 10 .

[0040] like Figure 1 and Figure 2 As shown in FIG, the openings 11, 12 have an oblong shape in order to facilitate their processing in the base element 10. Other shapes such as rectangular, circular, oval or elliptical shapes are obviously achievable.

[0041] The latching and unlatching mechanisms are implemented to hook the first cover 5 and the second cover 6 on the base member 10 and to unhook the first cover 5 and the second cover 6 from the base member 10, respectively. Figure 1 and Figure 2 As can be seen, the latching and unlatching mechanism comprises a first hook 15 and a second hook 16 carried by the first cover 5 and a third hook 15' and a fourth hook 16' carried by the second cover 6, the first hook 15 and the second hook 16 being arranged to be latched by a first latch 13 and a second latch 14, respectively, which are opposite to each other and carried by the first beam 1 and the second beam 2, and the third hook 15' and the fourth hook 16' being arranged to be latched by a third latch 13' and a fourth latch 14', respectively, which are opposite to each other and also carried by the first beam 1 and the second beam 2.

[0042] The latches 13, 13' and 14, 14' are respectively moulded on the first beam 1 and the second beam 2 of the base element 10 so as to form a one-piece element and obtain a more rigid clasp. Preferably, the latches are positioned on the upper part of the beams 1, 2.

[0043] It will be appreciated that the lateral pressure exerted simultaneously on each of the beams 1 and 2 brings the latches 13 and 14 together and the latches 13' and 14' together to release the hooks 15 and 16 integral with the first cover 5 and the hooks 15' and 16' integral with the second cover 6, respectively. The clasp then opens. To facilitate the manual action exerted on each of the beams, a first pusher 7 and a second pusher 8 are fixed to the first beam 1 and the second beam 2, respectively.

[0044] According to the utility model, if Figure 5b As can be seen in the figure, the latches 13, 13' and the latches 14, 14' have a gradual profile. The thickness of the latches gradually decreases as the latches move away from the pushers 7 and 8. Such an arrangement allows to compensate for the deformation of the beam, which decreases as it moves away from the pushers.

[0045] As in Figure 4 As can be seen in Fig. 1 , ribs 17, 18 are formed on the base element 10 in the immediate vicinity of the openings 11, 12. These ribs 17, 18 on the one hand allow to reinforce the base element 10 and on the other hand form stops for the beams 1, 2 when they are deformed to unlatch the hasp.

[0046] Furthermore, support elements 7', 8' are provided on the back of the pusher, on the part of the beam facing the inside of the buckle. These support elements 7', 8' are arranged to cooperate with the ribs 17, 18 when pressure is exerted on the pushers 7, 8. The cooperation of the support elements and the beams 1, 2 with the ribs 17, 18 allows to define the maximum travel of the pusher and at the same time limit the deformation of the beams 1, 2 so as not to exceed their plastic deformation threshold. When the wearer presses the pushers 7, 8, the beams 1, 2 are deformed and the lower vertical flanks of the beams rest against the ribs 17, 18 of the base element 10, the vertical flanks of the ribs 17, 18 acting as stops.

[0047] It should also be noted that the supporting elements 7 ′, 8 ′ each have a lower inclined plane 80 , 81 oriented towards the inside of the buckle, arranged to cooperate with the upper part of the ribs 17 , 18 to guide the deformation of the beam and prevent its twisting.

[0048] The support elements 7', 8' also allow the cover 5, 6 to move away from the base element 10 when the buckle is opened, and the support elements 7', 8' comprise upper inclined planes 82, 83 oriented towards the outside of the buckle and arranged to cooperate with the cover 5, 6. When the wearer presses the pushers 7, 8, the beams 1, 2 are deformed and the upper inclined planes 82, 83 of the support elements 7', 8' gradually guide the cover towards the outside of the base element 10 once the cover has been released from the latch.

[0049] The first pusher 7 and the second pusher 8 are also molded on the first beam 1 and the second beam 2 and are placed between each pair of latches 13, 13' and latches 14, 14'.

[0050] Advantageously, the first opening 11 and the second opening 12 have a length less than that of the base element 10 and greater than the total length of the pusher and the latch. Such a configuration allows reducing the risk of accidental opening while allowing elastic deformation of the beams 1, 2 sufficient to easily unlatch the buckle when the wearer wishes to open it.

[0051] To latch the clasp, the wearer folds the cover 5, 6 towards the base element 10 so as to engage the hooks 15, 16, 15', 16' with the latches 13, 14, 13', 14'. To facilitate the engagement of the hooks on the latches, the latches have a slope that allows the cover to be gradually guided on the base element 10, and then, as the cover 5, 6 is pressed against the base element 10, the beams 1, 2 are deformed and pushed back gradually.

[0052] Once the hook engages or clips onto the latch, the beams 1, 2 return to their rest position and the covers 5, 6 latch onto the base element 10. Clipping the hook onto the latch allows obtaining a notch that the wearer can feel when closing the buckle and to ensure that the buckle has been properly latched.

[0053] Although not shown in the figures, it is self-evident that the first strand or section of the wristband is fixed to one of the ends 50 of the first cover 5 and the second strand or section of the wristband is fixed to one of the ends 60 of the second cover 6 .

[0054] The various elements constituting the buckle are made of a plastic material, and preferably a plastic material filled with ceramic particles.

[0055] Other materials may also be used to make the buckle, such as metal or metal alloys, for example.

[0056] Those skilled in the art use Figure 6 A similar clasp with a single blade and a single cover as shown in FIG. 1 does not present particular difficulties.

[0057] according to Figure 6 In the embodiment illustrated in FIG. 1 , the buckle comprises a base element 10 comprising a first long side and a second long side respectively formed by a first beam 1 and a second beam 2. The buckle comprises a blade 3 pivotally mounted about a rod 20 and hinged on a first short side or a second short side of the base element 10.

[0058] The blade 3 is arranged to be superimposed on the base element 10 , and more specifically inside the base element 10 .

[0059] The clasp also comprises a cover 5 which is pivotable and hinged on the blade 3 about a rod 22 passing through a connecting element integral with the cover, the cover being arranged to be superposed on the base element 10. A strand or a section is fixed to the base element 10 and another strand or a section is fixed to one of the ends 50 of the cover.

[0060] The cover is held in the folded position on the base element 10 in response to resilient means associated with a latching and unlatching mechanism acting on the base element 10 and the cover to allow the cover to be hooked to the base element 10 and then unhooked.

[0061] The latching and unlatching mechanism comprises at least a first hook 15 and a second hook 16 carried by the cover and arranged to be latched by a first latch 13 and a second latch 14, respectively, which are opposite to each other and carried by the first beam 1 and the second beam 2. The latching mechanism may also comprise a third hook 15' and a fourth hook 16', which are arranged to be latched by a third latch 13' and a fourth latch 14', respectively, which are opposite to each other and also carried by the first longitudinal beam 1 and the second longitudinal beam 2.

[0062] The utility model also relates to a wristband equipped with the buckle according to the utility model.

[0063] The utility model also relates to a watch equipped with the buckle according to the utility model.

Claims

1. A wristband buckle, the wristband buckle is a wristband buckle of overlapping buckle type, the wristband buckle comprises: A base element (10), the first long side and the second long side of the base element being formed by a first beam (1) and a second beam (2), respectively; at least one blade (3, 4), the at least one blade being pivotable and hinged on the first short side and / or the second short side of the base element (10); and at least one cover (5, 6), the at least one cover being pivotable and hinged on the at least one blade (3, 4), the at least one cover (5, 6) being arranged to be superimposed on the base element (10) and to be retained on the base element (10) in response to a flexible member associated with a latching and unlatching mechanism, the flexible member acting on the base element (10) and the at least one cover (5 , 6) to allow the at least one cover (5, 6) to be hooked to the base element (10) and the at least one cover to be unhooked from the base element, characterized in that the base element (10) includes a first opening (11) and a second opening (12), the first opening and the second opening being coupled to the first beam (1) and the second beam (2) so that the first beam and the second beam constitute the flexible member, and pressure applied simultaneously to each of the beams (1, 2) in a direction transverse to the wristband buckle causes elastic deformation of the beams (1, 2) and causes the at least one cover (5, 6) to be unlatched from the base element (10) to allow the wearer to open the wristband buckle.

2. The wristband buckle according to claim 1, characterized in that: The latching and unlatching mechanism comprises at least a first hook (15) and a second hook (16) carried by the at least one cover (5, 6), the at least first hook (15) and the second hook (16) being arranged to clip onto at least a first latch (13) and a second latch (14) carried by the first beam (1) and the second beam (2), respectively.

3. The wristband buckle according to claim 1 or 2, characterized in that: The first beam (1) and the second beam (2) respectively carry a first pushing member (7) and a second pushing member (8).

4. The wristband buckle according to claim 2, wherein: The first beam (1) and the second beam (2) respectively carry a first pusher (7) and a second pusher (8), the first latch (13) and the third latch (13') are placed on either side of the first pusher (7), and the second latch (14) and the fourth latch (14') are placed on either side of the second pusher (8).

5. The wristband buckle according to claim 4, wherein: The first opening (11) has a length that is shorter than the length of the base element (10) and longer than the total length of the first pusher, the first latch and the third latch, and the second opening (12) has a length that is shorter than the length of the base element (10) and longer than the total length of the second pusher, the second latch and the fourth latch.

6. The wristband buckle according to claim 4, wherein: The first latch (13), the second latch (14), the third latch (13') and the fourth latch (14') as well as the first pusher (7) and the second pusher (8) form a one-piece element with the base element (10).

7. The wristband buckle according to claim 3, characterized in that: The wristband buckle comprises a support element (7', 8') provided on the beams (1, 2) and arranged to cooperate with ribs (17, 18) when pressure is exerted on the pushers (7, 8), thereby limiting the maximum travel of the pushers and limiting the deformation of the beams so as not to exceed a plastic deformation threshold.

8. The wristband buckle according to claim 7, characterized in that: The ribs (17, 18) are integral with the base element (10) and are formed adjacent to the openings (11, 12).

9. The wristband buckle according to claim 7, characterized in that: The support element (7', 8') is integral with the beam and is placed on the back of the pusher (7, 8).

10. The wristband buckle according to claim 7, characterized in that: The supporting elements (7', 8') each have a lower inclined plane (80, 81) oriented towards the inside of the wrist strap buckle, the lower inclined plane (80, 81) being arranged to cooperate with the ribs (17, 18).

11. The wristband buckle according to claim 7, characterized in that: The support elements (7', 8') each comprise an upper inclined plane (82, 83) oriented towards the outside of the wristband clasp and arranged to cooperate with the cover (5, 6).

12. The wristband buckle according to claim 1 or 2, wherein: The at least one blade comprises a first blade and a second blade, and the at least one cover comprises a first cover and a second cover, the base element (10), the first blade (3) and the second blade (4) and the first cover (5) and the second cover (6) being made of a ceramic-filled plastic material.

13. The wristband buckle according to claim 1 or 2, characterized in that: The at least one cover comprises a first cover and a second cover, wherein a strand or section of the wristband is fixed to one of the ends (50) of the first cover (5) and wherein a strand or section of the wristband is fixed to one of the ends (60) of the second cover.

14. The wristband buckle according to claim 13, characterized in that: A single strand is secured to one of the ends (50) of the first cover (5) and to one of the ends (60) of the second cover (6).

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