EP2876504B1 - Porte-piton d'horlogerie sans vis - Google Patents

Porte-piton d'horlogerie sans vis Download PDF

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Publication number
EP2876504B1
EP2876504B1 EP13193609.8A EP13193609A EP2876504B1 EP 2876504 B1 EP2876504 B1 EP 2876504B1 EP 13193609 A EP13193609 A EP 13193609A EP 2876504 B1 EP2876504 B1 EP 2876504B1
Authority
EP
European Patent Office
Prior art keywords
stud
spring
assembly
rigid structure
balance spring
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.)
Active
Application number
EP13193609.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2876504A1 (fr
Inventor
Raphaël Courvoisier
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 EP13193609.8A priority Critical patent/EP2876504B1/fr
Priority to US14/519,293 priority patent/US9176475B2/en
Priority to JP2014231286A priority patent/JP5938087B2/ja
Priority to CN201410670387.1A priority patent/CN104656407B/zh
Priority to CN201420702979.2U priority patent/CN204331292U/zh
Publication of EP2876504A1 publication Critical patent/EP2876504A1/fr
Priority to HK15110064.3A priority patent/HK1209497A1/xx
Application granted granted Critical
Publication of EP2876504B1 publication Critical patent/EP2876504B1/fr
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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block

Definitions

  • the invention relates to a holding or supporting assembly of a clockwork spiral spring, comprising a stud and a stud holder, which stud holder comprises means for fixing said stud holder to an escape mechanism, and said stud having at least one orientation surface defining a direction of support or support of said spiral spring.
  • the invention also relates to a clock escapement mechanism comprising at least one such holding assembly.
  • the invention also relates to a watch movement comprising at least one such escape mechanism.
  • the invention also relates to a timepiece comprising at least one such movement.
  • the invention relates to the field of watch exhaust mechanisms.
  • the stud constituting the external attachment point of the spiral spring, is clipped on a bolt carrier which is a stamped flat piece.
  • the stud On high-end creations, the stud is screwed into a stud holder which is a machined component.
  • the fixing screw then works between his foot and his nets. The head is never blocked, resulting in regular breakages, following the torsional forces experienced when the foot is blocked on the peak, and when the operator continues to screw.
  • the document CH 332 548 A in the name of PARECHOC SA describes a device for adjusting the active length of a hairspring, with a fixing without end of the end of this hairspring, by a device that directly clamps the hairspring, without passing through a peak.
  • a component called “hairspring” and a component called “waisted wafer” are needed to trap together the hairspring.
  • This waisted wafer which is an independent component, is not comparable to a piton.
  • a screw is used to lock the hairspring.
  • a first elastic blade is used to determine the active length of the hairspring. The waisted wafer pushes a second elastic blade on this first elastic blade, to prevent it from moving unexpectedly. This mechanism does not allow insertion and disengagement of a crew carrying the hairspring, simply by the effect of the elasticity of a blade.
  • the document EP 2 290 477 A1 in the name of GLASHÜTTE UHRENBETRIEB describes a bolt carrier which comprises a thread for fixing the bolt holding the bolt, which cooperates with a recess of this bolt, on a part of the thickness thereof.
  • the partition that carries the thread for receiving the screw is a rigid partition.
  • This construction uses an anti-friction pad that can be added between the stud and the hairspring in order to modify the point of attachment, it is, again, a system for adjusting the active length of the hairspring.
  • the invention proposes to provide a solution for maintaining the outer turn of the hairspring, which is compatible with high-end movements, and to solve the recurring problem of holding the screws by a screw-free fixing solution.
  • the invention relates to a holding or supporting assembly of a spiral clockwork spring, comprising a stud and a stud holder, which stud holder comprises means for fixing said stud holder to a mechanism exhaust, said peak having at least one orientation surface defining a direction of support or support of said spiral spring, characterized in that said bolt carrier is in two parts, and comprises a rigid structure carrying said fastening means, and a leaf-spring pressed against said rigid structure, said leaf-spring comprising at least one elastic lip defining with said structure a receiving chamber of said peak, said elastic lip cooperating with said at least one orientation surface of said piton for maintaining said stud in the indexed and locking position.
  • said lateral bearing surface constitutes an orientation surface which defines a single direction of the outer end of said spiral spring.
  • the invention also relates to a clock escapement mechanism comprising at least one such holding assembly.
  • the invention also relates to a watch movement comprising at least one such escape mechanism.
  • the invention also relates to a timepiece comprising at least one such movement, characterized in that said piece is a watch.
  • the invention makes use of a fastening element comprising elastic return means to, firstly allow the introduction or the extraction of a bolt by exerting on him a certain effort, and secondly maintain this pin in the operating position in a single stop position
  • the invention thus relates to an assembly 20 for holding or supporting a spiral spring 21 of timepieces, comprising a stud 1 and a stud holder 2.
  • This stud holder 2 comprises means 6 for fixing the stud holder 2 to an escape mechanism 30, such as a rocker cock, as visible on the figure 1 .
  • the stud 1 comprises at least one lateral bearing surface 7 defining a direction of support or support of such a spiral spring 21,
  • this stud holder 2 is in at least two parts, and comprises a rigid structure 5 carrying fastening means 6, and a spring blade 8 pressed against this rigid structure 5.
  • This leaf spring 8 comprises at less an elastic lip 9 defining with the rigid structure 5 a receiving chamber 10 of the pin 1.
  • This elastic lip 9 cooperates with this at least one lateral bearing surface 7 of the pin 1, for maintaining the pin 1 in the indexed position and blocking.
  • the pin 1 is pinched between the elastic lip 9 of the leaf spring 8, and a notch 53 of the rigid structure 5, visible on the figure 2 .
  • the lateral bearing surface 7 constitutes an orientation surface which defines a single direction of the outer end of the spiral spring 21.
  • the invention is illustrated in a preferred embodiment where the bolt carrier 2 is in two parts, which is economical because each of the two components it comprises is very simple to achieve, and perfectly compatible with large series sizes.
  • This bolt carrier 2 in two parts is still a minimum footprint.
  • the leaf spring 8 envelops, at least partially, the rigid structure 5, and the total space, in the direction D of the pivot axis of the balance, is the total between the total thickness of the rigid structure 5, and the thickness of a sheet metal sheet in which the leaf spring 8 is preferably formed.
  • the leaf spring 8 illustrated in Figures 1, 2 and 3 is preferably sheet metal cut and folded, it does not require any other particular machining. It is inexpensive, which makes it possible to use, with the same carrier structure 31 of the exhaust mechanism 30, and with the same rigid structure 5, several spring blades 8 of different sizes to cooperate with as many models of pitons of different geometries.
  • the rigid structure 5 may, depending on its dimensioning, be machined, or also made by stamping in a thicker and more rigid material than the spring blade 8.
  • the figure 2 shows a first variant of constant thickness, very economical, which lends itself to such a stamped embodiment.
  • the figure 4 shows a second variant of rigid structure 5 on two levels, which is preferably machined.
  • the assembly of the holding assembly 20 according to the invention makes it possible to simplify the machining and the production of the bolt carrier, since it is no longer necessary, contrary to the prior art, to make a bore or a housing similar for receiving the stud 1, nor tapping to cooperate with a locking screw.
  • the stud 1 comprises, on either side of the at least one lateral bearing surface 7 which it comprises to define the orientation of the outer end of the hairspring 21, stop surfaces 11, 12, to limit the travel of this pin 1 in the direction D of the axis of the spring-hairspring 21 relative to the clamp formed by the entire rigid structure 5 and the leaf spring 8.
  • the elastic lip 9 of the leaf spring 8 has two edge surfaces 91 and 92 which are parallel (and each located in a plane perpendicular to the direction D) and cooperates with this lateral bearing surface 7, which is constituted here by a plate 16, delimited by these stop surfaces 11 and 12.
  • the lateral bearing surface 7 is a flat 16 parallel to the axis D of the spiral spring 21.
  • this at least one lateral bearing surface 7 is fitted to the stop surfaces 11, 12 to define a single position of the bolt 1 in the direction of the axis D of the spiral spring 21.
  • the stud 1 has no stopping surface, on at least one side in the direction D.
  • the rigid structure 5 and / or the leaf spring 8 comprises an introduction ramp 13, 14, for the tangential introduction (according to the arrow of the figure 1 ), or conversely the tangential extraction of the piton 1 between the rigid structure 5 and the leaf spring 8.
  • This simple or compound ramp facilitates this insertion in the chamber 10 against the elastic return force of the spring blade 8. The same is true for the extraction.
  • the pin 1 When the pin 1 is pressed against this ramp and the spring blade 8, it is easy to lift the elastic lip 9, to allow the pin to reach its position mounted in the chamber 10 delimited by a notch 15 forming a threshold. introduction or extraction.
  • the chamber 10 is located, on the side of the leaf spring 8, in a clearance 80 visible on the figure 3 , the pin 1 bearing on a rear face 93 of the elastic lip 9, and, on the side of the rigid structure 5, in a notch 53.
  • This notch 53 is delimited on the one hand by an input sector, of preferably radiated, constituting such a ramp 13, and secondly by a flat 51.
  • This plate 51 may, according to the embodiment chosen, or remain at a distance from the elastic lip 9, or, as illustrated in FIG. figure 3 , support bearing a portion 94 of the elastic lip 9, only one end 95 cantilever cooperating in abutment with the pin 1.
  • Other variants are conceivable without departing from the invention, which consists in pinching the peak between a rigid structure and an elastic spring blade.
  • the chamber 10 is designed, in all variants, to immobilize the stud 1 in a single position in projection in a plane perpendicular to the axis D.
  • the rigid structure 5 and / or the leaf spring 8 comprises a notch 15 at the chamber 10, corresponding to the threshold of introduction or extraction.
  • the structure rigid 5 comprises a notch 17 (or a slot, or similar) or a lug arranged to cooperate with a lug 18 or respectively a notch that comprises the spring-blade 8, to rigidly connect the rigid structure 5 and the leaf spring 8 plated on each other.
  • the leaf spring may also comprise at least three tabs bent at 90 ° as the elastic blade 9, and located on a bore 81 or a peripheral rim 82 of the leaf spring 8, arranged to cooperate with a bore 58 or a peripheral rim 59 of the rigid structure 5, to ensure their perfectly coaxial assembly.
  • This relative positioning makes it possible to synchronize the rigid structure 5 and the leaf spring 8, either during their assembly, or in a setting phase if it is decided to leave a restricted angular mobility to the holding assembly 20 to make a setting Angular position of the pin 1.
  • the mechanism then requires at least means for maintaining in position this assembly 20 with respect to the structure 31.
  • the rigid structure 5 is of substantially annular shape for maintaining it resting on a structure 31, in particular a rocker arm, of the escapement mechanism 30, around the axis D of the spiral spring 21.
  • the leaf spring 8 is substantially annular in shape for its support in abutment between such a structure 31 and the rigid structure 5, or in support of the rigid structure 5 over their entire common periphery, around the axis D of the coil spring 21.
  • the rigid structure is mounted on the structure 31 so as to trap the leaf spring 8.
  • the rigid structure 5 comprises at least one face 51, 52, perpendicular to the axis D of said spiral spring 21, and preferably this rigid structure 5 comprises two faces 51, 52 parallel to each other and perpendicular to the axis D of the spiral spring 21.
  • the invention also relates to a clock escapement mechanism comprising at least one such holding assembly 20.
  • the invention also relates to a watch movement 40 comprising at least one such exhaust mechanism 30.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
EP13193609.8A 2013-11-20 2013-11-20 Porte-piton d'horlogerie sans vis Active EP2876504B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP13193609.8A EP2876504B1 (fr) 2013-11-20 2013-11-20 Porte-piton d'horlogerie sans vis
US14/519,293 US9176475B2 (en) 2013-11-20 2014-10-21 Timepiece balance spring stud-holder with no screws
JP2014231286A JP5938087B2 (ja) 2013-11-20 2014-11-14 ねじがない計時器用バランスばねスタッドホルダー
CN201410670387.1A CN104656407B (zh) 2013-11-20 2014-11-20 不具有螺钉的钟表游丝外桩保持件
CN201420702979.2U CN204331292U (zh) 2013-11-20 2014-11-20 用于保持或支承钟表游丝的组件、钟表擒纵机构、钟表机芯和钟表
HK15110064.3A HK1209497A1 (en) 2013-11-20 2015-10-14 Timepiece balance spring stud-holder with no screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13193609.8A EP2876504B1 (fr) 2013-11-20 2013-11-20 Porte-piton d'horlogerie sans vis

Publications (2)

Publication Number Publication Date
EP2876504A1 EP2876504A1 (fr) 2015-05-27
EP2876504B1 true EP2876504B1 (fr) 2017-07-26

Family

ID=49596174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13193609.8A Active EP2876504B1 (fr) 2013-11-20 2013-11-20 Porte-piton d'horlogerie sans vis

Country Status (5)

Country Link
US (1) US9176475B2 (ja)
EP (1) EP2876504B1 (ja)
JP (1) JP5938087B2 (ja)
CN (2) CN204331292U (ja)
HK (1) HK1209497A1 (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2876504B1 (fr) * 2013-11-20 2017-07-26 ETA SA Manufacture Horlogère Suisse Porte-piton d'horlogerie sans vis
EP3032353B1 (fr) * 2014-12-11 2019-08-07 ETA SA Manufacture Horlogère Suisse Porte-piton démontable
EP3037896B1 (fr) * 2014-12-22 2017-05-10 ETA SA Manufacture Horlogère Suisse Porte-piton demontable
EP3179315B1 (fr) * 2015-12-11 2019-03-27 ETA SA Manufacture Horlogère Suisse Porte-piton a montage securise
EP3179314B1 (fr) * 2015-12-11 2018-11-14 ETA SA Manufacture Horlogère Suisse Porte-piton a montage simplifie
EP3432083A1 (fr) * 2016-02-25 2019-01-23 ETA SA Manufacture Horlogère Suisse Spiral pour mouvement d'horlogerie mecanique
FR3052881B1 (fr) * 2016-06-21 2020-10-02 Lvmh Swiss Mft Sa Piece pour mouvement horloger, mouvement horloger, piece d'horlogerie et procede de fabrication d'une telle piece pour mouvement horloger
EP3273310A1 (fr) * 2016-07-20 2018-01-24 ETA SA Manufacture Horlogère Suisse Clé de raquette
EP3451076B1 (fr) * 2017-08-31 2020-07-29 ETA SA Manufacture Horlogère Suisse Porte-piton pour un mouvement d'horlogerie mécanique
EP3627238A1 (fr) * 2018-09-21 2020-03-25 Nivarox-FAR S.A. Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support
EP3627234A1 (fr) 2018-09-21 2020-03-25 Nivarox-FAR S.A. Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support
EP3779607A1 (fr) * 2019-08-16 2021-02-17 Nivarox-FAR S.A. Procédé de réalisation d'un assemblage d'un ensemble organe de maintien élastique - composant d'horlogerie avec un élément de support
EP4006649A1 (fr) * 2020-11-27 2022-06-01 ETA SA Manufacture Horlogère Suisse Dispositif de fixation de réglage d'ébat de balancier
EP4286960A1 (fr) 2022-06-02 2023-12-06 ETA SA Manufacture Horlogère Suisse Organe réglant d'horlogerie muni d'un système de raquetterie
EP4286962A1 (fr) 2022-06-02 2023-12-06 ETA SA Manufacture Horlogère Suisse Organe réglant d'horlogerie comprenant un système de raquetterie muni de moyens de verrouillage

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US221180A (en) * 1879-08-19 1879-11-04 Improvement in hair-spring studs
US440877A (en) * 1890-02-07 1890-11-18 Botham
US1181510A (en) * 1914-01-16 1916-05-02 Robt H Ingersoll & Bro Hair-spring compensator and regulator for watches.
CH76336A (fr) * 1917-07-16 1917-12-01 Edouard Glauser Dispositif de fixation de piton porte-spiral
CH332548A (fr) * 1957-06-13 1958-09-15 Parechoc Sa Raquetterie pour pièce d'horlogerie
US3046725A (en) * 1958-10-29 1962-07-31 Parechoc Sa Hairspring adjustment device for a timepiece
JPS509027Y1 (ja) * 1970-07-27 1975-03-18
CH579296B5 (ja) * 1973-01-11 1976-08-31 Bidlingmaier J Bifora Uhren Gm
JPS5288061A (en) * 1976-01-16 1977-07-22 Seiko Epson Corp Outer end fixing structure for balance springs
CN2149644Y (zh) * 1992-10-29 1993-12-15 大连手表工业公司 机械表的摆轮游丝调速器的外桩固定机构
CH692532A5 (fr) * 1997-10-21 2002-07-15 Ebauchesfabrik Eta Ag Procédé de fabrication d'un spiral de balancier pour mouvement d'horlogerie.
WO2001009687A1 (fr) * 1999-07-29 2001-02-08 Seiko Instruments Inc. Piece d'horlogerie mecanique dotee d'un mecanisme de reglage a tenon
DE10345918A1 (de) * 2003-10-02 2005-05-12 Lange Uhren Gmbh Schwingsystem
EP2290477B1 (fr) 2009-08-25 2014-06-11 Glashütter Uhrenbetrieb GmbH Ensemble de fixation de l'extrémite péripherique du spiral d'un dispositif à balancier-spiral pour pièce d'horlogerie
CN201532534U (zh) * 2009-10-27 2010-07-21 天津海鸥表业集团有限公司 手表游丝外桩的固定结构
EP2570871B1 (fr) * 2011-09-14 2014-03-19 Montres Breguet SA Spiral à deux ressort-spiraux
EP2876504B1 (fr) * 2013-11-20 2017-07-26 ETA SA Manufacture Horlogère Suisse Porte-piton d'horlogerie sans vis

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Also Published As

Publication number Publication date
US9176475B2 (en) 2015-11-03
CN204331292U (zh) 2015-05-13
CN104656407A (zh) 2015-05-27
HK1209497A1 (en) 2016-04-01
CN104656407B (zh) 2017-10-03
JP5938087B2 (ja) 2016-06-22
JP2015102550A (ja) 2015-06-04
US20150138934A1 (en) 2015-05-21
EP2876504A1 (fr) 2015-05-27

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