• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The wrist-folding clasp according to the invention comprises a first blade (1), a second blade (5) hinged at one of its ends to the first blade (1) and coupled at its other end to a lid (10), and locking means of the second blade (5) in the folded position on the first blade (1). The locking means comprise a ring (17) rotatably mounted around the cover (10) and manipulable by a user, this ring (17) comprising at least one projecting portion (17b) arranged to cooperate with the first blade (1).
    公开号:CH712040A2
    申请号:CH00057/16
    申请日:2016-01-15
    公开日:2017-07-31
    发明作者:Le Gall Eric
    申请人:Patek Philippe Sa Geneve；
    IPC主号:
    专利说明:

    Description: [0001] The present invention relates to a folding clasp for a bracelet, in particular for a watch strap.
    Patent CH 661 186 discloses a folding clasp comprising two blades articulated to one another by one of their ends. The free end of the first blade carries a fixing bar to a first bracelet strand. The free end of the second blade carries a cover forming a loop for a second bracelet strand. The lid includes a flat portion and two lateral legs hinged to the second blade. A nipple carried by the flat portion is intended to engage in a hole of the second strand of bracelet for adjusting the length of the bracelet. Another stud carried by the second blade is intended to engage in a hole of the first blade to lock the second blade in the folded position on the first blade.
    A disadvantage of this clasp is that the locking of the second blade on the first blade is not sufficiently secure, in that it does not sufficiently prevent the accidental openings of the clasp. Indeed, a simple shock received from the underside or the side of the lid can unlock the second blade and cause the opening of the clasp. In addition, in case of deformation of one of the blades, the locking stud can no longer engage in the corresponding hole of the first blade, making closing the clasp impossible.
    The present invention aims to remedy, at least in part, the aforementioned drawbacks and proposes for this purpose a folding clasp for a bracelet, comprising a first blade, a second blade articulated by one of its ends to the first blade and coupled by its other end to a cover, and locking means of the second blade in the folded position on the first blade, characterized in that the locking means comprise a ring rotatably mounted around the cover and manipulated by a user, this ring comprising at minus a projecting portion arranged to cooperate with the first blade.
    Typically, for its cooperation with the first blade, the at least one projecting portion comprises at least one hook.
    According to an advantageous characteristic, the at least one projecting part comprises at least one locking element cooperating with a corresponding locking element of the first blade when the second blade is locked on the first blade to prevent rotation of the ring. and, from this locked position of the second blade, the ring is movable in the direction of the thickness of the clasp to the first blade to disengage said locking elements and allow said rotation of the ring to allow unlocking of the second blade .
    The at least one blocking element may be defined by at least one surface of the at least one hook.
    Preferably, since the locked position of the second blade, it is the cover-ring assembly which is movable in the direction of the thickness of the clasp to the first blade to disengage said locking elements. To allow such a displacement of the cover-ring assembly, the second blade can be elastically deformable.
    Typically, the ring is subjected to the action of a return spring.
    The at least one projecting portion may comprise two opposing arms each arranged to cooperate with the first blade.
    In embodiments, the cover constitutes a passer arranged to be crossed by a strand of the bracelet and comprises a stud to be engaged in a hole of said strand of the bracelet.
    The lid can be hinged to the second blade.
    The clasp according to the invention may further comprise a third blade hinged to the first blade and can be folded over the first blade.
    Advantageously, the cover is arranged for, in the closed state of the clasp, prevent deployment of the third blade.
    Means may further be provided for locking the third blade in the folded position on the first blade before the second blade has been folded on the first blade.
    These locking means of the third blade in the folded position on the first blade may comprise latching balls.
    Other features and advantages of the present invention will appear on reading the following detailed description with reference to the accompanying drawings, in which: FIGS. 1 and 2 are perspective views, respectively from above and from below, of a folding clasp according to a preferred embodiment of the invention in an open position; figs. 3 and 4 are perspective views, respectively from above and from below, of the folding clasp according to the preferred embodiment of the invention in a closed position; fig. 5 is a side view of the folding clasp according to the preferred embodiment of the invention in a closed position and assembled to a bracelet; fig. 6 is an exploded perspective view from below of a lid of the folding clasp according to the preferred embodiment of the invention and a rotary ring fitted to the lid; fig. 7 is a perspective view from below of the lid and the rotating ring assembled to each other; fig. 8 is a side view of the lid-ring assembly; figs. 9 and 10 are plan views from below of the cover-ring assembly, respectively in a locking position of the clasp and in an unlocked position; figs. 11 and 12 are side views of the clasp deploying according to the preferred embodiment of the invention, respectively in a locked state and in an unlocked state, these views being cut along a longitudinal plane offset from the longitudinal axis of the clasp.
    With reference to FIGS. 1 to 5, a folding clasp for a bracelet, in particular for a watch strap, according to a preferred embodiment of the invention, comprises a base plate 1 at the ends of which are articulated, by hinges 2, 3, two blades pivoting arms 4.5 foldable on the base blade 1. The free end of the pivoting blade 4 is provided with means for attaching a first strand 6a of the bracelet. In the example shown, these attachment means comprise a bar 7 held by a rod 8 hinged to the free end of the pivoting blade 4. At the free end of the other pivoting blade 5 is articulated by a hinge 9, a cover 10 comprising attachment means to the second strand 6b of the bracelet. In the example shown, the cover 10 is a loop through which the second strand 6b of the bracelet can pass, and its attachment means to the second strand 6b of the bracelet are formed by a stud 11 intended to engage in a hole a series of holes that includes the second strand 6b, to hold the bracelet and adjust its length.
    More specifically, the lid 10 comprises (see FIG 6) a circular body 12 from which extend, in the direction of the axis A of the circular body 12, two opposite lateral uprights 13 whose free ends are articulated by the hinge 9 to the pivoting blade 5. The circular body 12 has a central opening in which is supported a decorative element 14 or representative of a trade mark. The second strand 6b of the bracelet is intended to pass under the circular body 12, between the two uprights 13, as shown in FIG. 5. On the circular body 12 also protrudes the pin 11. Preferably, the circular body 12 and the lateral uprights 13 form a single piece, while the element 14 and the pin 11 are inserts, for example welded to the circular body 12.
    From the deployed state (open) of the clasp as shown in Figs. 1 and 2, the pivoting blade 4 can be folded down on the base blade 1. Then, the other pivoting blade 5 can in turn be folded down on the base blade 1. The pivoting blade 4 is provided at its free end, on its two sides, snap balls 15 each subjected to the action of a return spring (not visible in the drawings). When the pivoting blade 4 is folded down on the base blade 1, these latching balls 15 engage in corresponding recesses 16 formed in inner surfaces of two longitudinal arms of the base blade 1 to lock the pivoting blade 4 on As a variant, this snap lock could be replaced, for example, by an elastic clamping of the pivoting blade 4 on the base blade 1. The pivoting blade 5 is kept in its folded position by locking means which are described below.
    These locking means comprise (see Figs 1 and 6) a rotary ring 17 mounted around the cover 10. The rotary ring 17 comprises a circular portion 17a, which surrounds the cover 10, and two opposing arms 17b extending from the circular portion 17a in the direction of the axis A. The rotating ring 17 is preferably in one piece, as shown. As can be seen in figs. 6 to 8, the circular portion 17a is held in the direction of the axis A between a circular shoulder 18 of the circular body 12 of the cover 10 and holding parts, namely a cover in an arc of circle 19 and the head of one or more screws 20. The screws 20 are engaged in holes 21 of the circular body 12 and their heads cooperate with notches 22 of the circular portion 17a of the ring 17 to both maintain the ring 17 and limit its angular deflection by relative to the cover 10. The arcuate cover 19 is fixed by screws 23 to the circular body 12 of the cover 10. The arcuate cover 19 closes an arcuate housing 24 defined by the circular body 12, cooperates with a surface 25 of the circular portion 17a of the ring 17 to maintain it, and limits the angular displacement of the ring 17 relative to the cover 10 by cooperating with abutments 26 of the circular portion 17a.
    The arcuate housing 24 receives a rod in a circular arc 27 around which is guided a helical spring 28. An end of the spring 28 bears against a surface 29 of the circular body 12 of the lid 10. The another end of the spring 28 bears against a U-shaped lug 30 of the ring 17, which receives the rod in an arc of circle 27 and moves along the latter during the rotation of the ring 17 with respect to the The spring 28 thus constitutes a return spring for the ring 17. The spring 28 holds the ring 17 in a rest position illustrated in FIGS. 7 and 9 where one of the surfaces 26 of the ring 17 is in abutment against one end of the arcuate cover 19. From this rest position, the ring 17 can be rotated relative to the cover 10 about the axis A in a predetermined direction, namely the clockwise direction in FIGS. 1 and 3 and counterclockwise in FIGS. 9 and 10.
    The ring 17 can thus reach a limit position, illustrated in FIG. 10, offset for example by about 15 ° relative to the rest position. In this limit position, the other surface 26 of the ring 17 abuts against the other end of the arcuate cover 19.
    The two arms 17b of the ring 17 are located on a larger diameter than the uprights 13. In the rest position of the ring 17 relative to the cover 10, these two arms 17b have the same angular position as the uprights 13 so that they hide said uprights 13. The free end of each arm 17b defines a hook 32 extending radially inwards and adapted to cooperate with the lower surface 33 of a corresponding lateral tab 34 of the blade 1 to lock the pivoting blade 5 on the base blade 1 (see Figs 1 to 4).
    When the pivoting blade 5 is folded down on the base plate 1, after the pivoting blade 4 has itself been folded, a rounded lower surface 35 of each hook 32 cooperates with an inclined surface 36 of the corresponding side tab 34 to rotate the ring 17 relative to the cover 10 against the action of the return spring 28 to its limit position illustrated in FIG. 10. As soon as the hook 32 is at a lower position than the corresponding lateral tab 34, where it is no longer retained by the latter, the return spring 28 brings the ring 17 back to its rest position and the hook 32 is placed under said corresponding side tab 34, which locks the pivoting blade 5 by holding it in the direction of the thickness of the clasp. The unlocking of the pivoting blade 5 is obtained by manually turning the ring 17 against the action of its return spring 28 towards its limit position illustrated in FIG. 10 to release the hooks 32 side tabs 34, after which the clasp can be deployed.
    Preferably, as can be seen in the drawings, the functional upper surface 37 of each hook 32 is not flat but itself forms a locking hook arranged to act parallel to the longitudinal direction of the clasp. Similarly, the bottom functional surface 33 of each lateral lug 34 is not flat but itself forms a locking hook arranged to act parallel to the longitudinal direction of the clasp. When the pivoting blade 5 is locked on the base blade 1 (see Fig. 11), the locking hook 37 of each hook 32 is engaged in the locking hook 33 of the corresponding lateral tab 34 and prevents any rotation of the hook. ring 17. To unlock the pivoting blade 5, a pressure must be exerted on the cover assembly 10 - ring 17 in the direction of the thickness of the clasp, that is to say along the axis A, to bring closer the cover 10 of the base blade 1 and thus disengage the locking hooks 37 from the locking hooks 33, then, while maintaining the pressure on said assembly 10, 17, the ring 17 must be turned to disengage the hooks 32 of the legs lateral 34 (see Fig. 12). Such displacement of the assembly 10, 17 in the direction of the thickness of the clasp towards the base blade 1 is authorized by the pivoting blade 5 which has a certain elasticity. In the folded position, a surface 38 of the pivoting blade 5 located between the ends of the latter is in abutment against a bearing surface 39 of the base plate 1, as shown in FIG. 12, which allows the portion of the pivoting blade 5 located between the surface 38 and the free end of the blade 5 to deform elastically under the effect of a pressure applied to the assembly 10, 17. During the locking the pivoting blade 5, the elasticity of the latter allows the assembly 10,17 to perform the extra movement necessary to bring the hooks 32, with their locking hooks 37, to a lower position than the legs lateral 34.
    In practice, to press the assembly 10, 17 and then rotate the ring 17 the user can enter for example the upper arm 17b (near their junction area with the circular portion 17a of the ring 17) with two fingers.
    In variants of the invention, it could be ensured that only the ring 17 is movable in the direction of the thickness of the clasp, when the pivoting blade 5 is locked, to disengage the locking hooks 37, 33 In this case, instead of using a resiliently deformable pivoting blade 5, a resilient material could be placed between the circular portion 17a of the ring 17 and the cover 10, which material would be compressed upon application of pressure. on the ring 17 directed towards the base blade 1.
    In the closed state of the clasp, the hinge 9 is received in a transverse groove 40 (visible in FIG 1) of the base blade 1. In the same closed condition of the clasp, the lid 10 and the strand 6b of the bracelet prevent the pivoting blade 4 to rise and therefore maintain it against the base blade 1. It is therefore clear that the latching balls 15 are not essential. They are nevertheless useful for temporarily locking the pivoting blade 4 on the base blade 1 before folding the other pivoting blade 5 on the same base blade 1. In variants, the pivoting blade 4 could be held against the base blade 1 by the other pivoting blade 5.
    To open the clasp according to the invention three actions are necessary, namely to press the cover assembly 10 - ring 17, turn the ring 17 and then raise the cover assembly 10 - ring 17 and with it the swivel blade 5. If we remove the locking hooks 37, 33, that is to say if we make the upper surface of the hooks 32 and the lower surface of the flat side legs 34, two actions are still necessary, to to know how to turn the ring 17 and then raise the cover assembly 10- ring 17 and with it the pivoting blade 5. In both cases, the risk of accidental opening of the clasp is reduced compared to the clasp according to patent CH 661 186, even if the first variant (with brackets 37, 33) offers better security. In addition, the clasp according to the invention is relatively insensitive to possible deformations of the blades 1,4 and 5 since each hook 32 may have a large space under the corresponding lateral tab 34, leaving a certain latitude in the relative positioning of these two elements 32, 34. Although the use of two hooks 32 is preferred, it could provide the clasp of a single hook 32 (thus a single arm 17b and a single side leg 34).
    权利要求:
    Claims (15)
    [1]
    Moreover, the cover 10 may not be a passer and could be equipped with fastening means to the strand 6b of the bar-type bracelet. The cover 10 could also not be hinged to the pivoting blade 5 but be fixed with respect to this blade 5. [0031] In the embodiment described above and illustrated in the drawings, the clasp comprises three blades 1, 4 and 5. Those skilled in the art will understand, however, that the present invention can also be applied to a two blade folding clasp, such as that described in CH 661186. In this case, the pivoting blade 4 would be removed and the blade of base 1 would include fastening means strand 6a of the bracelet. claims
    1. Clasp wristlet comprising a first blade (1), a second blade (5) articulated by one of its ends to the first blade (1) and coupled by its other end to a cover (10), and means locking the second blade (5) in the folded position on the first blade (1), characterized in that the locking means comprise a ring (17) rotatably mounted around the lid (10) and manipulated by a user, this ring (17) comprising at least one projecting portion (17b) arranged to cooperate with the first blade (1).
    [2]
    2. Clasp according to claim 1, characterized in that for its cooperation with the first blade (1), the at least one projecting portion (17b) comprises at least one hook (32).
    [3]
    Clasp according to claim 1 or 2, characterized in that the at least one projection (17b) comprises at least one locking element (37) cooperating with a corresponding blocking element (33) of the first blade (1). ) when the second blade (5) is locked on the first blade (1) to prevent rotation of the ring (17), and in that, from this locked position of the second blade (5), the ring (17) is movable in the direction of the thickness of the clasp to the first blade (1) to disengage said locking elements (37, 33) and allow said rotation of the ring (17) to allow unlocking of the second blade (5). ).
    [4]
    4. Clasp according to claims 2 and 3, characterized in that the at least one locking element (37) is defined by at least one surface of the at least one hook (32).
    [5]
    5. Clasp according to claim 3 or 4, characterized in that since the locked position of the second blade (5), the cover assembly (10) -bague (17) is movable in the direction of the thickness of the clasp to the first blade (1) for disengaging said locking elements (37, 33).
    [6]
    6. Clasp according to claim 5, characterized in that to allow said displacement of the cover assembly (10) -bague (17) the second blade (5) is elastically deformable.
    [7]
    Clasp according to any one of claims 1 to 6, characterized in that the ring (17) is subjected to the action of a return spring (28).
    [8]
    8. Clasp according to any one of claims 1 to 7, characterized in that the at least one projecting portion (17b) comprises two opposing arms each arranged to cooperate with the first blade (1).
    [9]
    9. Clasp according to any one of claims 1 to 8, characterized in that the cover (10) constitutes a loop arranged to be crossed by a strand (6b) of the bracelet.
    [10]
    10. Clasp according to claim 9, characterized in that the cover (10) comprises a pin (11) intended to be engaged in a hole of said strand (6b) of the bracelet.
    [11]
    11. Clasp according to any one of claims 1 to 10, characterized in that the cover (10) is articulated to the second blade (5).
    [12]
    12. Clasp according to any one of claims 1 to 11, characterized in that it further comprises a third blade (4) articulated to the first blade (1) and can be folded over the first blade (1).
    [13]
    13. Clasp according to claim 12, characterized in that the cover (10) is arranged for, in the closed state of the clasp, prevent deployment of the third blade (4).
    [14]
    14. Clasp according to claim 12 or 13, characterized in that it further comprises means (15, 16) for locking the third blade (4) in the folded position on the first blade (1) before the second blade (5) has been folded on the first blade (1).
    [15]
    15. Clasp according to claim 14, characterized in that the means (15) for locking the third blade (4) in the folded position on the first blade (1) comprise latching balls.
    类似技术:
    公开号 | 公开日 | 专利标题
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    FR2482647A1|1981-11-20|COMBINATION LOCK FOR LUGGAGE, LOCKABLE EVEN EXCLUDING COMBINATION POSITION
    CH715003B1|2021-10-29|System for attaching a bracelet to a watch case.
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    EP1971236B1|2009-05-20|Extensible device for watch strap
    EP2813157B1|2016-05-18|Clasp with extensible loop
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    CH705058B1|2012-12-14|Clasp for e.g. rigid strap of wristwatch, has blocking tooth engaged in one of notches of toothed rack so as to define length of strap according to position of tooth engaged with notch, and magnets and/or spring to maintain tooth in notch
    EP3718429A1|2020-10-07|Insert for a watch strap
    CH713218A1|2018-06-15|Device for fast attachment of a watch strap.
    EP0784251B1|2000-05-03|Device for connecting a band to a watch case
    FR2743641A1|1997-07-18|Wristwatch bracelet attachment apparatus
    CH712319A1|2017-10-13|Device for setting the length of a clasp for a bracelet or belt.
    FR2956021A1|2011-08-12|Removable handle for use in cooking vessel i.e. pot bowl, has handle body carrying blocking units that block arms in tightening configuration, and end forming tabs located at level of fixation end
    CH707307A2|2014-06-13|Clasp for strap utilized for wrist watch, has bolt moved from its closed state to its open state by action of user on push rod of locking elements such that cap is likely to be moved independent of closed or open state of clasp
    CH716060A2|2020-10-15|Insert for a strand of a watch strap.
    CH716349A2|2020-12-30|Device for attaching a bracelet.
    同族专利:
    公开号 | 公开日
    CH712040B1|2019-12-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP3669693A1|2018-12-21|2020-06-24|Patek Philippe SA Genève|Clasp and attachment system|
    EP3708024A1|2019-03-15|2020-09-16|Montres Breguet S.A.|Bracelet clasp|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00057/16A|CH712040B1|2016-01-15|2016-01-15|Folding clasp for bracelet.|CH00057/16A| CH712040B1|2016-01-15|2016-01-15|Folding clasp for bracelet.|
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