EP3011396A2 - Secure-mount antishock system - Google Patents
Secure-mount antishock systemInfo
- Publication number
- EP3011396A2 EP3011396A2 EP14728582.9A EP14728582A EP3011396A2 EP 3011396 A2 EP3011396 A2 EP 3011396A2 EP 14728582 A EP14728582 A EP 14728582A EP 3011396 A2 EP3011396 A2 EP 3011396A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- shock absorbing
- absorbing device
- cover
- elastic means
- support
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/02—Shock-damping bearings
- G04B31/04—Shock-damping bearings with jewel hole and cap jewel
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/02—Shock-damping bearings
Definitions
- the present invention relates to an anti-shock system for a mobile axis 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.
- the present invention relates to bearings for timepieces, more 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.
- Figures 1 and 2 illustrate an inverted double-cone device that is currently used in timepieces on the market.
- 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 stone against pivot 5.
- the support 1 is a part revolution comprising a circular flange 1 1.
- This rim January 1 is interrupted in two diametrically opposed locations by an opening 12 so as to create two semicircular flanges January 1, 1 January.
- the opening 12 is formed partly in the two semicircular flanges 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 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 of semi-circular flanges 1 1 a, 1 1 b.
- 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.
- the pierced stone 4 the counter pivot stone 5 and the axis of the balance wheel move and the spring 1 0 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.
- 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.
- shock absorber systems are not easy. Indeed, certain parts such as the support 1 and the spring 10 must be oriented and manipulated in a certain way during the assembly operation so that the assembly can be done.
- 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, it is provided with a spring of the axial type and 5 which has a lyre shape. This one is manipulated so that it can take support under the returns of semicircular flanges 1 1a, 1 1b of the support.
- the manual assembly is preferred because the human being is able to instantly know the orientation in which he must place the parts of the shock absorber system relative to each other.
- vibrations can cause a displacement of the parts of the shock absorber system so that these parts are no longer perfectly centered relative to each other. This potential decentering can lead to further damage. Indeed, when mounting a first piece 30 on a second piece, a third piece to be placed between the first piece and the second piece can be pinched by said first and second pieces and thus be damaged.
- 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.
- the invention relates to a shock absorbing device for an axis of an element of a timepiece
- a support comprising a bottom cup surmounted by a defined peripheral rim, opposite 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, said at least one pivot module being arranged in said housing and adapted to cooperate with said axis
- said device further comprises a cover formed by a recessed piece attaching to the support at said peripheral flange, said cover comprising an inner wall on which at least one groove is arranged so that elastic means can be accommodated therein place so that the elastic means are held axially from above and from below by said cover to exert a constraint on the pivot module.
- a first advantage of the present invention is to combine automation of the assembly with the security of always having the elastic means perfectly positioned.
- the device according to the present invention has the advantage of having the elastic means previously positioned relative to the cover which retains said elastic means. Therefore, there is no risk that these elastic means are poorly positioned or damaged during mounting of said shock absorbing device.
- Advantageous embodiments of the invention are the subject of the dependent claims.
- said resilient means comprise a spring ring having at least two arms extending towards the axial center of said spring ring for pressing said pivot module into the housing of the support.
- the at least two arms are diametrically opposed.
- said resilient means comprise a spring ring having internal radial extensions disposed between annular portions, said internal radial extensions being constituted by the band forming the ring which is curved towards the inside of the ring. .
- the recessed piece is cylindrical and has a first diameter for fixing said annular piece to the peripheral rim of the support and a second diameter forming a bearing zone for the elastic means when said elastic means deform during a shock.
- said internal radial extensions are regularly distributed.
- the spring ring further comprises at least two lugs extending in a direction away from the axial center of said spring ring.
- the spring ring further comprises at least two lugs extending in a direction away from the axial center of said spring ring, the at least two lugs being located at the annular portions.
- the cover is force-fitted to said peripheral flange.
- the cover is screwed to said peripheral flange. In another embodiment, the cover is glued to said peripheral flange.
- the cover is welded to said peripheral rim.
- FIGS. 3 and 4 show schematically a shock absorber system of timepiece according to the invention when it is disassembled and mounted;
- the present invention proceeds from the general inventive idea of providing a non-removable 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 movement watchmaker.
- the watch movement is placed in a timepiece comprising a middle part closed by a bottom and an ice.
- 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.
- the plate or the bridges of the movement are the basic element in which the anti-shock system 1 00 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.
- 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.
- 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 makes it possible to dampen the shocks and to bring the pivot module 400 back to its rest position when the stresses exerted following the shocks occur. 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 attachment means 500 comprise an additional piece 510 for fixing the elastic means 300 on the support 200.
- This additional part 510 is in the form of a cover 51 0 which is fixed on the support 200.
- This cover 510 is designed so that during attachment to the support 200, the elastic means 300 exert a stress on the pivot module 400. This constraint allows the pivot module 400 to be stationary without, however, hinder the movement thereof during an impact. Indeed, during an impact, the axis abuts on the pivot module 400 which moves and elastically deforms the elastic means 300.
- This cover 510 is in the form of a part 51 1 having an opening 512.
- This part 51 1 has an inner wall 51 3 and an outer wall 514 and an upper end 515 and a lower end 516.
- the opening of the element 51 1 to a first inner dimension so as to cooperate with the peripheral rim 203.
- the part 51 1 is fixed via the lower end 515 to the peripheral rim 203.
- the support 20, the rim 203 and the cover 510 may be of square shape or have any other possible forms, it is necessary that the element 51 1 can be fixed to the peripheral rim 203
- the cover 510 is in the form of a cylindrical annular piece 51 1 extending along a central axis (C) and having an opening 512.
- This annular cylindrical piece 51 1 has an inner wall 513 and an outer wall 514 and an upper end 515 and a lower end 516.
- the opening of the annular piece 51 1 cylindrical to a first inner diameter D1 so as to cooperate with the peripheral flange 203.
- the annular piece 51 1 's cylindrical inserted by the lower end 515 to the peripheral rim 203.
- This attachment of the cylindrical annular part 51 1 to the peripheral rim 203 is by force insertion, screwing, welding or gluing.
- the fixing of the annular cylindrical piece 51 1 the peripheral rim 203 is by insertion by force, by welding or gluing, it will be understood that the shock absorbing device is non-removable.
- a holding zone 520 is arranged on the inner wall 513.
- This holding zone 520 may be in the form of a groove 520a (not shown) so that the elastic means 300 can be inserted therein.
- the inner wall may have a different shape of the outer wall 514, for example, the inner wall 513 may be circular and the outer wall 514 may be square.
- the inner wall 513 has a first shape at the upper end 515 and a second shape at the lower end 516.
- an inner wall 513 having, at its upper end 51 5, a shape adapted for the holding region of the elastic means 300, and at its lower end 516, a shape adapted for fixing said cover 510 to the support 200 via the peripheral rim 203.
- the upper end 515 of the cylindrical annular element 51 1 has a second internal diameter D2 that is smaller than the first internal diameter D1. This difference in diameter makes it possible to create a bearing zone 517 for the elastic means 300.
- the holding zone 520 is arranged at this upper end of the cylindrical annular piece 51 1 having a second internal diameter D2.
- This holding zone 520 comprises an outgrowth 521 extending from the inner wall 513 of the annular cylindrical piece 51 1.
- This protrusion 521 forms, with the bearing zone 517, a groove 522 in which the elastic means 300 fit. Ways elastics 300 are supported on the protrusion 521.
- the axis abuts on the shockproof system 100 so that the pivot module 400 moves.
- the elastic means 300 deform and come to bear on the bearing zone 517.
- 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 it consists of a band or ribbon that is to say 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).
- the elastic means 300 are in the form of a spring ring 301 which comprises two arms 302 extending towards the axial center of said spring ring 301. These arms 302 are diametrically opposed and serve to press said pivot module 400 into the housing 206 of the support 200.
- the spring ring 301 comprises internal radial extensions 303 disposed between annular portions 304. These internal radial extensions 303 consist of the band forming the ring 301 which is curved towards the inside of the ring 301. These internal radial extensions 303 are preferably evenly distributed over 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.
- This spring ring 301 is then arranged to fit into the groove 520a, 522 located on the inner wall 51 3 of the cover 510. More particularly, it is the annular portions 303 which fit into said groove 520a.
- This arrangement makes it possible to have a spring ring 301 which is integral with the cap 510, that is to say that this spring ring 301 is preassembled with said cover 510. Thus, mounting said cover 51 0 is simplified.
- the groove 520a, 522 has dimensions such that the spring ring 301, once installed, can move slightly. This allows the spring ring 301 to move and perfectly center when mounting the cover 510 on the support 200. The vibrations that can be generated during the automatic assembly are then of no consequence.
- the spring ring 301 has, at the level of the annular portions 303, lugs 305 extending so as to move away from the axial center of said spring ring 301 as can be seen in FIG. 7. These lugs 305 are arranged to maintain said spring ring 301 to said cover 510. Indeed, the dimensions of the spring ring 301 and the cap 510 are calculated so that only the pins 305 fit into the groove 520a.
- This arrangement has the advantage of making it possible to limit the influence of the groove 520a, 522 on said spring ring 301. Indeed, when the spring ring 301 is placed in the groove 520a, 522, the latter modifies the mechanical response during a stress since it exerts a stress on said spring ring, in particular on the annular parts 303 of the ring spring 301 previously described. These annular portions 303 are active zones, that is to say they intervene in the elastic action of the spring ring 301. The reactions of said spring ring 301 can then be modified which implies to take them into account when designing the spring ring 301.
- At least the housing 206, the pivot module 400 and the elastic means 300 are made / arranged so that the various parts are angularly free relative to each other.
- the various parts that make up the shock absorbing system 100 such that at least the housing 206, the pivot module 400 and the elastic means 300 are assembled into each other without any particular manipulation is necessary.
- no rotation or manipulation or twisting is made during assembly.
- at least the housing 206, the pivot module 400, the cover 510 and the elastic means 300 are parts of revolution that is to say having a generally circular shape and extending along a central axis (C). This circular shape makes it possible to adapt to all the support forms 200.
- the circular, non-oriented shape of the housing 206, the pivot module 400 and the elastic means 300 makes it possible to have a support 200 of any shape which, during assembly, will be positioned in any way without affecting the mounting process of the shock absorbing bearing 100. It is also possible that the support 200, the housing 206, the pivot module 400 and the elastic means 300 are parts of revolution that is to say having a circular shape.
- This configuration of the parts of the shock absorbing bearing 100 according to the invention facilitates assembly. Indeed, if the parts have an orientation between them, it is necessary to manipulate them so that the assembly can be done. For example, to fit two triangular geometric figures into each other, each side must be parallel, an orientation is necessary.
- the support 200 and the element of the movement in which the shock absorbing bearing 100 is placed are one and the same piece, the support 200 and the element of the movement are therefore monobloc.
- 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.
- 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.
- the pivot module 400 may be made of a single stone or that the pierced stone and the counter-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.
- the shape of the elastic means may be conceivable provided that they can fit into the groove 520a, 522.
- cover 510 includes two grooves 520a, 522 to place two spring rings 301.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14728582.9A EP3011396B1 (en) | 2013-06-21 | 2014-06-09 | Secure-mount antishock system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13173255.4A EP2816423A1 (en) | 2013-06-21 | 2013-06-21 | Securely mounted anti-shock system |
EP14728582.9A EP3011396B1 (en) | 2013-06-21 | 2014-06-09 | Secure-mount antishock system |
PCT/EP2014/061938 WO2014202418A2 (en) | 2013-06-21 | 2014-06-09 | Secure-mount antishock system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3011396A2 true EP3011396A2 (en) | 2016-04-27 |
EP3011396B1 EP3011396B1 (en) | 2017-08-02 |
Family
ID=48672450
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13173255.4A Withdrawn EP2816423A1 (en) | 2013-06-21 | 2013-06-21 | Securely mounted anti-shock system |
EP14728582.9A Active EP3011396B1 (en) | 2013-06-21 | 2014-06-09 | Secure-mount antishock system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13173255.4A Withdrawn EP2816423A1 (en) | 2013-06-21 | 2013-06-21 | Securely mounted anti-shock system |
Country Status (6)
Country | Link |
---|---|
US (1) | US9740173B2 (en) |
EP (2) | EP2816423A1 (en) |
JP (1) | JP6190951B2 (en) |
CN (2) | CN105324724B (en) |
HK (2) | HK1195709A2 (en) |
WO (1) | WO2014202418A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3916489A1 (en) | 2020-05-29 | 2021-12-01 | Rolex Sa | Shock absorber spring, bearing body and bearing for timepiece |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3220211B1 (en) * | 2016-03-14 | 2018-10-10 | ETA SA Manufacture Horlogère Suisse | Shock absorbing system with angular locking |
EP3291025B1 (en) * | 2016-08-30 | 2020-08-19 | Montres Breguet S.A. | Multi-leaf shock absorber |
EP3839661B1 (en) * | 2019-12-18 | 2022-08-10 | ETA SA Manufacture Horlogère Suisse | Shock absorber device with angular locking |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH369336A (en) * | 1960-11-07 | 1963-05-15 | Novochoc S A | Shock-absorbing bearing excluding clockwork bearings |
FR1459572A (en) * | 1961-12-28 | 1966-04-29 | Lontke & Co K G Maschinenfabri | Screen-printing device with a hand-guided scraper for making inscriptions on signs, posters and other similar objects |
GB1029700A (en) * | 1963-05-24 | 1966-05-18 | Parechoc Sa | A shock-damping bearing for the movement of a time-piece or other small mechanism and a method for the manufacture thereof |
CH499810A (en) * | 1968-04-02 | 1970-08-14 | Seitz Sa | Shock-absorbing bearing for a timepiece and method of manufacturing this bearing |
CH1052871A4 (en) * | 1971-07-15 | 1974-09-13 | ||
JPS5226569U (en) * | 1975-08-14 | 1977-02-24 | ||
FR2336588A1 (en) * | 1975-12-24 | 1977-07-22 | Epsilon Sarl | Watch bearing shock absorber spring - is ring shaped and has locking and tensioning arms locating in recesses |
DE602005025585D1 (en) * | 2005-02-23 | 2011-02-10 | Eta Sa Mft Horlogere Suisse | Shock absorbing watch storage |
EP1705537B1 (en) * | 2005-03-23 | 2008-05-14 | Rolex S.A. | Shock-proof bearing for timepiece |
JP5253201B2 (en) * | 2009-01-23 | 2013-07-31 | セイコーインスツル株式会社 | Bearing structure and watch having the same |
EP2469357B2 (en) * | 2010-12-21 | 2016-06-29 | The Swatch Group Research and Development Ltd. | Shock-absorbing bearing for a rotating mobile of a clock movement |
CH705075B1 (en) * | 2011-06-08 | 2015-12-15 | Kif Parechoc Sa | Shock protection and adjustable clock adjustment method. |
-
2013
- 2013-06-21 EP EP13173255.4A patent/EP2816423A1/en not_active Withdrawn
-
2014
- 2014-06-09 JP JP2016518959A patent/JP6190951B2/en active Active
- 2014-06-09 EP EP14728582.9A patent/EP3011396B1/en active Active
- 2014-06-09 CN CN201480034942.XA patent/CN105324724B/en active Active
- 2014-06-09 US US14/894,792 patent/US9740173B2/en active Active
- 2014-06-09 WO PCT/EP2014/061938 patent/WO2014202418A2/en active Application Filing
- 2014-06-20 HK HK14105925.3A patent/HK1195709A2/en not_active IP Right Cessation
- 2014-06-23 CN CN201420337307.6U patent/CN204178142U/en active Active
-
2016
- 2016-06-28 HK HK16107518.0A patent/HK1219546A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3916489A1 (en) | 2020-05-29 | 2021-12-01 | Rolex Sa | Shock absorber spring, bearing body and bearing for timepiece |
Also Published As
Publication number | Publication date |
---|---|
US20160109854A1 (en) | 2016-04-21 |
HK1219546A1 (en) | 2017-04-07 |
EP3011396B1 (en) | 2017-08-02 |
JP2016520848A (en) | 2016-07-14 |
WO2014202418A2 (en) | 2014-12-24 |
CN105324724A (en) | 2016-02-10 |
US9740173B2 (en) | 2017-08-22 |
WO2014202418A3 (en) | 2015-05-07 |
HK1195709A2 (en) | 2014-11-14 |
EP2816423A1 (en) | 2014-12-24 |
CN105324724B (en) | 2018-02-06 |
CN204178142U (en) | 2015-02-25 |
JP6190951B2 (en) | 2017-08-30 |
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