• 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 present invention relates to a shock absorbing device (100) for an axis of a mobile of a timepiece comprising a support (200) comprising a bottom cup surmounted by a peripheral rim (203) delimited to the opposite said cup, by an upper surface and comprising an outer wall, said cup and the flange (203) together defining a housing in which at least one pivot module (400) is arranged. The device comprises fastening means comprising a peripheral surface (501) extending from the flange (203) towards the center of the cup, resilient means (300) being arranged between the pivot module (400) and the scope to exert a constraint on the pivot module.
    公开号:CH712187A2
    申请号:CH00332/16
    申请日:2016-03-14
    公开日:2017-09-15
    发明作者:Merino Antonio
    申请人:Eta Sa Mft Horlogère Suisse；
    IPC主号:
    专利说明:

    Description: BACKGROUND OF THE INVENTION The present invention relates to an anti-shock system for an axis of a mobile of a timepiece. The shaft comprises a beam, having a support, said support being provided with a housing adapted to receive a pivot system in which the tigeron is inserted. The shockproof system further comprises elastic means arranged to exert on said pivot system at least one axial force.
    The technical field of the invention is the technical field of fine mechanics.
    TECHNOLOGICAL BACKGROUND
    The present invention relates to bearings for timepieces, particularly of the type for damping shocks. The mechanical watch manufacturers have long since designed numerous devices allowing an axis to absorb the energy resulting from an impact, in particular a side impact, by abutment against a wall of the hole of the base block that it crosses. while allowing a momentary movement of the tigeron before it is brought back to its rest position under the action of a spring.
    Figs. 1 and 2 illustrate an inverted double-cone device that is currently used in timepieces on the market.
    A support 1, whose base comprises a hole 2 for the passage of the balance shaft 3 terminated by a tigeron 3a, allows positioning a kitten 20 in which are immobilized a pierced stone 4 crossed by the tigeron 3a and 5. The kitten 20 is held in a housing 6 of the support 1 by a spring 10 which comprises in this example radial extensions 9 compressing the counter-pivot stone 5. The support 1 is a part of revolution comprising a circular rim 11. This flange 11 is interrupted in two diametrically opposite locations by an opening 12 so as to create two semi-circular flanges 11a, 11b. The opening 12 is formed partly in the two semicircular edges 11a, 11b so as to materialize two returns 13. The kitten 20 is held in a housing 6 of the support 1 by elastic means such as a spring 10 which comprises in this example of the radial extensions 9 compressing the counter-pivot stone 5. The spring 10 is of the axial type and has a form of lyre arranged to bear under the return semicircular flanges 11a, 11b. The housing 6 comprises two bearing surfaces 7, 7a in the form of inverted cones on which support complementary bearing surfaces 8, 8a of the kitten 20, said bearing surfaces to be executed with very high accuracy. In the event of an axial impact, the pierced stone 4, the counter pivot stone 5 and the axis of the balance arm move and the spring 10 acts alone to bring the balance shaft 3 back to its initial position. The spring 10 is dimensioned to have a limit of displacement so that beyond this limit, the balance shaft 3 comes into contact with abutments 14 allowing said axis 3 to absorb the shock, which the rods 3a Axis 3 can not do without breaking. In case of lateral impact, that is to say when the end of the tigeron imbalances the kitten 20 out of its resting plane, the spring 10 cooperates with the complementary inclined planes 7, 7a; 8, 8a to refocus the kitten 20. Such bearings have for example been sold under the trademark Incabloc®. These springs can be made of phynox or brass and are manufactured by traditional means of cutting.
    However, a disadvantage of these shock absorber systems is that their assembly is not easy. Indeed, some parts such as the support 1 and the spring 10 must be oriented and manipulated in a certain way during the assembly operation for the assembly can be done. Thus, the assembly of the shock absorber system begins by providing a support, then a kitten with these stones. The latter is placed in the support housing. Then, one is equipped with a spring of the axial type and which presents a form of lyre. It is manipulated so that it can take support under the return of semicircular flanges 11a, 11b of the support.
    SUMMARY OF THE INVENTION
    The invention aims to overcome the disadvantages of the prior art by proposing to provide a shock absorber system whose assembly is automated, simple and safe.
    For this purpose, the invention relates to a shock absorber device for an axis of an element of a timepiece comprising a support having a bottom cup surmounted by a delimited peripheral rim, as opposed to said cup, by an upper surface and comprising an outer wall, said cup and the flange together defining a housing, the device further comprising at least one pivot module extending along an axis, said at least one pivot module being arranged in said housing and adapted to cooperate with said axis, said device comprising fixing means comprising a peripheral bearing extending from the flange to the axial center of the cup, elastic means being arranged between the pivot module and the scope to exert a constraint on the pivot module, characterized in that the elastic means comprise a spring ring provided with at least one radial extension s' tending towards the center of said ring and at least two lugs extending in a reverse direction, said bearing comprising at least one notch for bayonet mounting said spring ring and in that the scope comprises, on both sides other of said at least one notch, a spout oriented towards the bottom cup for locking in rotation said elastic means.
    In a first advantageous embodiment, the scope comprises three notches, said spring ring comprising three lugs.
    In a second advantageous embodiment, said resilient means comprise a spring ring having at least two arms extending towards the axial center of said spring ring to press said pivot module in the housing of the support.
    In a third advantageous embodiment, the at least two arms are diametrically opposed.
    In another advantageous embodiment, the spring ring comprises three angularly distributed arms.
    In another advantageous embodiment, said means comprise a spring ring having internal radial extensions disposed between annular parts, said internal radial extensions being constituted by the band forming the ring curved towards the inside of the ring. .
    In another advantageous embodiment, said internal radial extensions are regularly distributed.
    In another advantageous embodiment, the spring ring comprises three internal radial extensions.
    BRIEF DESCRIPTION OF THE FIGURES
    The objects, advantages and characteristics of the shockproof system or shock absorbing device according to the present invention will appear more clearly in the following detailed description of at least one embodiment of the invention given solely by way of non-limiting example. and illustrated by the accompanying drawings in which: FIGS. 1 and 2, already mentioned, make it possible to schematically represent a shock absorber system of a timepiece according to the prior art; figs. 3 and 4 schematically show a timepiece shock absorber system according to the invention when it is disassembled and mounted; figs. 5 and 6 show different solutions of the elastic means of the shock absorber system of timepiece according to the invention;
    DETAILED DESCRIPTION
    The present invention proceeds from the general inventive idea which is to provide a shock absorbing device or simple shockproof system, easy to mount and offering less risk of problems during assembly. This shock absorber system is arranged to be mounted on a plate and / or at least one bridge of a watch movement. The watch movement is placed in a timepiece comprising a middle part closed by a bottom and an ice.
    In figs. 3 and 4, a device or shock-absorbing bearing 100 or shockproof system according to a first embodiment is shown. This shock absorbing device or shockproof system 100 is mounted in a base element of a timepiece movement. In particular, the plate or the bridges of the movement are the basic element in which the anti-shock system 100 according to the invention is placed. This anti-shock system 100 comprises a support 200. This support 200 is in the form of a cup 201, provided with a hole 202, surmounted by a peripheral rim 203 delimited, opposite said cup, by an upper surface. 213. This peripheral flange 203 also has an outer wall 214 and an inner wall 215. This flange 203 and the bottom cup 201 define a housing 206 in which a pivot module 400 is inserted. The flange 203 and the bottom cup 201 may be monoblocks or parts dissociated. A conventional pivot module 400 comprises a kitten 401, that is to say a part having a circular central orifice, an outer wall and an inner wall. In the central orifice is inserted a pierced stone 402 whose diameter corresponds to that of the central orifice. The inner wall includes a shoulder so that a counter pivot stone 403 can be attached. The pivot module 400 is then placed in the housing 206 of the support 200 and cooperates with the shank of an axis.
    The shockproof system 100 further comprises resilient means 300 which are arranged to cooperate with the pivot module 400. This helps dampen shocks and bring the pivot module 400 in its rest position when the constraints exerted following the shocks fade. The elastic means 300 are fixed on the support 200. Preferably, the elastic means 300 are also placed on the pivot module 400. The shockproof system 100 is then inserted into an orifice of the plate or in one of the bridges of the movement.
    The elastic means 300 are, for example, in the form of a spring ring 301. This spring ring 301 is of the flat type that is to say that it consists of a strip or ribbon c that is, having a width greater than the thickness. The band or ribbon constituting the spring ring 301 is metallic and circular extending along a central axis (C).
    In a first embodiment of this spring ring 301 visible in FIG. 5, the elastic means 300 are in the form of a circular spring ring 301 which comprises arms 302 extending towards the axial center of said ring
    权利要求:
    Claims (8)
    [1]
    301. These arms 302 are diametrically opposed and serve to press said pivot module 400 in the housing 206 of the support 200. The spring ring 301 may comprise two, preferably three arms. In a second embodiment of this spring ring 301 visible in FIG. 6, the spring ring 301 comprises internal radial extensions 303 disposed between annular portions 304. These internal radial extensions 303 are constituted by the band forming the ring 301 which is curved towards the inside of the ring 301. These extensions internal radial 303 are preferably evenly distributed around the round of the flat ring 301 so that the spring ring 301 can act homogeneously as can be seen in FIG. 5. It is then understood that the spring ring 301 can be oriented in any way with respect to the support 200. The spring ring 301 may comprise two, preferably three radial extensions. To mount and fix the elastic means 300 to the support 200, a bayonet system 500 is used. Such a bayonet system comprises a peripheral bearing 501 extending from the flange 203 towards the center of the support 200. This bearing surface 501 forms, with the support 200 and the flange, a holding zone 503. This holding zone 503 may comprise besides a peripheral groove 505 so that the elastic means 300 can be inserted therein. In order to mount the elastic means, the bearing 501 includes notches 507 so that the bearing is divided into portions. Advantageously, the spring ring 301 has lugs 305 extending so as to move away from the axial center of said spring ring 301. These lugs 305 are arranged to maintain said spring ring 301. Indeed, the dimensions of the The spring ring 301 and the bearing surface 501 are designed so that the lugs 305 can be inserted into the notches 507 of the bearing surface 501. The number of notches will preferably be identical to the number of lugs. Preferably, this number will be three. This insertion of the lugs into the notches of the scope allows said ring-spring to be inserted into the holding zone. It is then sufficient to rotate the spring ring so that the lugs are placed under the scope 501. Indeed, the mounting of the spring is subsequent to the step of placing the pivot module 400 in its housing 206 so that the mounting of the spring ring causes the appearance of a stress applied to said spring ring. This constraint is due to the pivot module which tends to push the spring ring towards the outside of the housing while the lugs of said spring ring are in abutment on the scope, thus retaining said spring ring. Of course, it may be possible to have a single notch at the level of the scope but to have a spring ring having two or three pins. The presence of the pins 305 limits the stress exerted on said spring ring 301 by the scope so that this constraint is only localized on these pins 305. Therefore, as these pins 305 are passive zones is- that is, without any influence on the behavior of the spring ring 301. As a result, the initial behavior of the spring ring 301 is not modified by its assembly to the support 200. [0026] Cleverly according to the invention, the portions of the span 501 are designed to have, at each end, a spout 509. These spouts at each end of a portion of the scope have a locking function of the spring ring. Indeed, in operating condition, the shock absorber system works so that the spring is more or less solicited. However, it happens that the spring is no longer under stress so that a movement of this ring-spring is possible. This displacement can be a rotational movement of the ring spring on itself. Therefore, if the rotation is too important, there is a risk that the lugs are facing the notches and therefore the spring ring is disassembled. Thus, the presence of nozzles advantageously solves this problem by acting as rotation limiter. During a rotation of the spring-ring on itself in case of low stress, the nozzles act as a stop to stop this rotation. The lugs of the spring ring can not be found next to the notches and therefore the spring ring can not disassemble itself. One can imagine, the support 200 and the element of the movement in which the shock absorbing bearing 100 is placed are only one and the same piece, the support 200 and the element of movement are monoblock. It is then understood that the base member has a recess arranged to form a bottom pierced with a hole and forming the housing 206 in which the pivot module 400 is placed. It is also understood that this second variant can coexist with the first variant. Indeed, as a bridge or a platen has any shape, an assembly area arranged makes it possible to be sure to install the fastening means and thus to maintain the pivot module 400 in the housing. It will be understood that various modifications and / or improvements and / or combinations obvious to those skilled in the art can be made to the various embodiments of the invention described above without departing from the scope of the invention defined by the appended claims. Indeed, it is possible that the pivot module 400 may consist of a single stone or that the pierced stone and the pivot-pivot stone are integral with one another. It is understood that the pierced stone and the counter-pivot stone can be driven into one another or be one-piece. These possibilities make it possible to limit the number of parts of the shock-absorbing bearing. claims
    A shock absorbing device (100) for an axis of a component of a timepiece comprising a support (200) having a bottom cup (201) surmounted by a peripheral rim (203) delimited to the opposite said cup, by an upper surface (213) and comprising an outer wall (214), said cup (201) and the flange (203) together defining a housing (206), the device further comprising at least one pivot module (400) extending along an axis (C), said at least one pivot module being arranged in said housing and adapted to cooperate with said axis, said device comprising fixing means (500) comprising a peripheral surface (501) extending from the rim towards the axial center of the cup, resilient means being arranged between the pivot module and the bearing for exerting stress on the pivot module, characterized in that the elastic means comprise a spring ring (301) provided with at least one radial extension (302, 303) extending towards the center of said ring and at least two lugs (305) extending in a reverse direction, said bearing comprising at least one notch (507) for allowing the bayonet mounting said ring spring and in that the scope comprises, on either side of said at least one notch, a spout (509) oriented towards the bottom cup for locking in rotation said elastic means.
    [2]
    2. shock absorbing device (100) according to claim 1, characterized in that the bearing surface (501) comprises three notches (507), said spring ring comprising three lugs (305).
    [3]
    3. shock absorbing device (100) according to claims 1 or 2, characterized in that said elastic means (300) comprise a spring ring (301) having at least two arms (302) extending towards the axial center of said ring spring for pressing said pivot module into the support housing.
    [4]
    4. shock absorbing device (100) according to claim 3, characterized in that the at least two arms (302) are diametrically opposed.
    [5]
    5. shock absorbing device (100) according to claim 3, characterized in that the spring ring comprises three arms (302) angularly distributed.
    [6]
    A shock absorbing device (100) according to claims 1 or 2, characterized in that said means (300) comprises a spring ring (301) having internal radial extensions (303) disposed between annular portions (304), said internal radial extensions being constituted by the band forming the ring curved towards the inside of the ring.
    [7]
    7. shock absorbing device (100) according to claim 6, characterized in that said inner radial extensions (303) are regularly distributed.
    [8]
    8. Shock absorbing device (100) according to claims 6 or 7, characterized in that the spring ring comprises three inner radial extensions (303).
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    同族专利:
    公开号 | 公开日
    CH712187B1|2018-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2020-10-30| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    CH00332/16A|CH712187B1|2016-03-14|2016-03-14|Shock absorber device for an axis of a mobile of a timepiece comprising a spring ring mounted bayonet.|CH00332/16A| CH712187B1|2016-03-14|2016-03-14|Shock absorber device for an axis of a mobile of a timepiece comprising a spring ring mounted bayonet.|
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