EP3220211A1 - Stosssicherungssystem mit rotationssperre - Google Patents

Stosssicherungssystem mit rotationssperre Download PDF

Info

Publication number
EP3220211A1
EP3220211A1 EP16160124.0A EP16160124A EP3220211A1 EP 3220211 A1 EP3220211 A1 EP 3220211A1 EP 16160124 A EP16160124 A EP 16160124A EP 3220211 A1 EP3220211 A1 EP 3220211A1
Authority
EP
European Patent Office
Prior art keywords
spring ring
shock absorbing
absorbing device
cup
ring
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
Application number
EP16160124.0A
Other languages
English (en)
French (fr)
Other versions
EP3220211B1 (de
Inventor
Antonio Merino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP16160124.0A priority Critical patent/EP3220211B1/de
Priority to JP2017031967A priority patent/JP6371875B2/ja
Priority to US15/450,263 priority patent/US10114339B2/en
Priority to CN201720237835.8U priority patent/CN206638957U/zh
Priority to CN201710145511.6A priority patent/CN107193198B/zh
Publication of EP3220211A1 publication Critical patent/EP3220211A1/de
Priority to HK18103137.8A priority patent/HK1243779A1/zh
Application granted granted Critical
Publication of EP3220211B1 publication Critical patent/EP3220211B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B37/00—Cases
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/05—Fixed mountings for pocket or wrist watches
    • G04B37/052—Fixed mountings for pocket or wrist watches with shock damping means not related to the winding stem
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • 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
    • 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

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.
  • the 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 of revolution comprising a circular rim 11.
  • This flange 11 is interrupted in two diametrically opposed locations by an opening 12 so as to create two semi-circular flanges 11a, 11b.
  • the opening 12 is formed partly in the two semi-circular 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 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.
  • 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.
  • 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, 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 semi-circular flanges 11a, 11b of the support.
  • 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 extending along an axis, said at least one pivot module being arranged in said housing and suitable to cooperate with said axis
  • said device comprising fixing means comprising a peripheral bearing extending from the flange towards the axial center of the cup, elastic means being arranged between the pivot module and the bearing to exert a stress on the module pivot, characterized in that the elastic means comprise a spring ring provided with at least one radial extension extending towards the center of said ring and at least two lugs extending in a reverse direction, said bearing comprising at least one notch for allow the bayonet mounting of said spring ring and that the scope comprises, from and other of said at least one notch, a
  • the scope comprises three notches, said spring ring comprising three lugs.
  • said elastic means comprise a spring ring comprising at least two arms extending towards the axial center of said spring ring to press said pivot module into the housing of the support.
  • the at least two arms are diametrically opposed.
  • the spring ring comprises three angularly distributed arms.
  • 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.
  • said internal radial extensions are regularly distributed.
  • the spring ring comprises three internal radial extensions.
  • the present invention proceeds from the general inventive idea of providing 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.
  • 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 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.
  • 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 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 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 band or ribbon that is 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).
  • the resilient means 300 are in the form of a circular spring ring 301 which comprises 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 206 200.
  • the spring ring 301 may comprise two, preferably three arms.
  • 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 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 visible in the figure 5 . It is then understood that the spring ring 301 can be oriented in any manner relative to the support 200.
  • the spring ring 301 may comprise two, preferably three radial extensions.
  • a bayonet system 500 is used to mount and fix the elastic means 300 to the support 200.
  • 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.
  • the bearing 501 includes notches 507 so that the bearing is divided into portions.
  • 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.
  • the dimensions of the spring ring 301 and the span 501 are calculated so that the lugs 305 can be inserted into the notches 507 of the span 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 span 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.
  • 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.
  • the portions of the bearing 501 are designed to have, at each end, a spout 509. These spouts located at each end of a portion of the scope have a locking function of the spring ring.
  • the shock absorber system works so that the spring is more or less solicited.
  • 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.
  • the presence of nozzles advantageously solves this problem by acting as rotation limiter. then a rotation of the spring-ring on itself in case of low stress, the beaks 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.
  • the support 200 and the element of the movement in which the shock absorbing bearing 100 is placed in one and the same piece, the support 200 and the element of movement are monobloc. 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.
  • 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.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Vibration Dampers (AREA)
EP16160124.0A 2016-03-14 2016-03-14 Stosssicherungssystem mit rotationssperre Active EP3220211B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP16160124.0A EP3220211B1 (de) 2016-03-14 2016-03-14 Stosssicherungssystem mit rotationssperre
JP2017031967A JP6371875B2 (ja) 2016-03-14 2017-02-23 角度係止部を有する耐衝撃システム
US15/450,263 US10114339B2 (en) 2016-03-14 2017-03-06 Anti-shock system with angular locking
CN201720237835.8U CN206638957U (zh) 2016-03-14 2017-03-13 用于钟表元件的心轴的减震器装置
CN201710145511.6A CN107193198B (zh) 2016-03-14 2017-03-13 具有角度锁定的抗震系统
HK18103137.8A HK1243779A1 (zh) 2016-03-14 2018-03-05 具有角度鎖定的抗震系統

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16160124.0A EP3220211B1 (de) 2016-03-14 2016-03-14 Stosssicherungssystem mit rotationssperre

Publications (2)

Publication Number Publication Date
EP3220211A1 true EP3220211A1 (de) 2017-09-20
EP3220211B1 EP3220211B1 (de) 2018-10-10

Family

ID=55527472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16160124.0A Active EP3220211B1 (de) 2016-03-14 2016-03-14 Stosssicherungssystem mit rotationssperre

Country Status (5)

Country Link
US (1) US10114339B2 (de)
EP (1) EP3220211B1 (de)
JP (1) JP6371875B2 (de)
CN (2) CN107193198B (de)
HK (1) HK1243779A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3470934A1 (de) * 2017-10-10 2019-04-17 ETA SA Manufacture Horlogère Suisse Stosssicherungssystem mit winkelblockierung
EP3839661A1 (de) 2019-12-18 2021-06-23 ETA SA Manufacture Horlogère Suisse Stossdämpfervorrichtung mit winkelverriegelung
EP3916489A1 (de) 2020-05-29 2021-12-01 Rolex Sa Dämpfungsfeder, lagerkörper und lager für uhr

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3220211B1 (de) * 2016-03-14 2018-10-10 ETA SA Manufacture Horlogère Suisse Stosssicherungssystem mit rotationssperre
EP3422117B1 (de) * 2017-06-29 2020-05-27 Nivarox-FAR S.A. Stossdämpfer-gleitlager für eine achse einer drehteil einer uhr
EP3779608A1 (de) * 2019-08-16 2021-02-17 Nivarox-FAR S.A. Elastisches halterungsorgan einer uhrenkomponente auf einem halteelement
EP3910427A1 (de) 2020-05-13 2021-11-17 ETA SA Manufacture Horlogère Suisse Befestigungskit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2239682A (en) * 1937-04-21 1941-04-29 Marti Fritz Bearing with movable bush, particularly for watch movements
FR1008173A (fr) * 1949-07-25 1952-05-14 Junghans Geb Ag Suspension élastique pour les paliers de fusées d'axes en mécanique de précision
CH330904A (fr) * 1956-05-23 1958-06-30 Rolex Montres Palier amortisseur de chocs pour mobile d'horlogerie

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1696286B1 (de) * 2005-02-23 2010-12-29 ETA SA Manufacture Horlogère Suisse Stoßdämpfende Uhrenlagerung
EP1705537B1 (de) * 2005-03-23 2008-05-14 Rolex S.A. Stoßdämpfende Lagerung für Uhren
EP2469357B2 (de) * 2010-12-21 2016-06-29 The Swatch Group Research and Development Ltd. Stoßdämpfer-Gleitlager für eine sich drehende Triebfeder einer Uhr
JP5975618B2 (ja) * 2011-10-14 2016-08-23 セイコーインスツル株式会社 てんぷの耐振軸受機構、これを備えたてんぷ及びこれを備えた時計
EP2806314A1 (de) * 2013-05-24 2014-11-26 The Swatch Group Research and Development Ltd. Stoßdämpfer mit Bajonett
EP2816423A1 (de) * 2013-06-21 2014-12-24 ETA SA Manufacture Horlogère Suisse Stoßsicheres System mit gesicherter Montage
CN203930351U (zh) * 2013-12-20 2014-11-05 Eta瑞士钟表制造股份有限公司 减震轴承、包括该减震轴承的机芯及包括该机芯的钟表
EP3220211B1 (de) * 2016-03-14 2018-10-10 ETA SA Manufacture Horlogère Suisse Stosssicherungssystem mit rotationssperre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2239682A (en) * 1937-04-21 1941-04-29 Marti Fritz Bearing with movable bush, particularly for watch movements
FR1008173A (fr) * 1949-07-25 1952-05-14 Junghans Geb Ag Suspension élastique pour les paliers de fusées d'axes en mécanique de précision
CH330904A (fr) * 1956-05-23 1958-06-30 Rolex Montres Palier amortisseur de chocs pour mobile d'horlogerie

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3470934A1 (de) * 2017-10-10 2019-04-17 ETA SA Manufacture Horlogère Suisse Stosssicherungssystem mit winkelblockierung
US11169487B2 (en) 2017-10-10 2021-11-09 Eta Sa Manufacture Horlogere Suisse Angular locking shockproof system
EP3839661A1 (de) 2019-12-18 2021-06-23 ETA SA Manufacture Horlogère Suisse Stossdämpfervorrichtung mit winkelverriegelung
US11448278B2 (en) 2019-12-18 2022-09-20 Eta Sa Manufacture Horlogère Suisse Shock absorbing device with angular locking
EP3916489A1 (de) 2020-05-29 2021-12-01 Rolex Sa Dämpfungsfeder, lagerkörper und lager für uhr

Also Published As

Publication number Publication date
JP6371875B2 (ja) 2018-08-08
US10114339B2 (en) 2018-10-30
JP2017167128A (ja) 2017-09-21
CN206638957U (zh) 2017-11-14
EP3220211B1 (de) 2018-10-10
CN107193198B (zh) 2019-06-04
CN107193198A (zh) 2017-09-22
HK1243779A1 (zh) 2018-07-20
US20170261937A1 (en) 2017-09-14

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