EP2781972B1 - Pivot pour mécanisme d'horlogerie - Google Patents

Pivot pour mécanisme d'horlogerie Download PDF

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Publication number
EP2781972B1
EP2781972B1 EP13160026.4A EP13160026A EP2781972B1 EP 2781972 B1 EP2781972 B1 EP 2781972B1 EP 13160026 A EP13160026 A EP 13160026A EP 2781972 B1 EP2781972 B1 EP 2781972B1
Authority
EP
European Patent Office
Prior art keywords
plate
pivot
frontal
guide
suspended
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
EP13160026.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2781972A1 (fr
Inventor
Marc Stranczl
Thierry Hessler
Jean-Luc Helfer
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.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox SA
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
Priority to EP13160026.4A priority Critical patent/EP2781972B1/fr
Application filed by Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to CH00629/13A priority patent/CH707809B1/fr
Priority to US14/764,080 priority patent/US9684283B2/en
Priority to CN201480016909.4A priority patent/CN105051623B/zh
Priority to PCT/EP2014/052784 priority patent/WO2014146832A1/fr
Priority to JP2015555758A priority patent/JP6134009B2/ja
Priority to EP14704568.6A priority patent/EP2976684B1/fr
Priority to KR1020157024814A priority patent/KR101777490B1/ko
Priority to TW103106057A priority patent/TWI633404B/zh
Publication of EP2781972A1 publication Critical patent/EP2781972A1/fr
Priority to HK16105248.1A priority patent/HK1217234A1/zh
Application granted granted Critical
Publication of EP2781972B1 publication Critical patent/EP2781972B1/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
    • 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
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • 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
    • G04B29/00—Frameworks
    • G04B29/04—Connecting or supporting parts
    • 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
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • 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
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/016—Plastic 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
    • 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
    • G04B31/06—Manufacture or mounting processes
    • 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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements

Definitions

  • the invention relates to a timepiece comprising at least one pivot for a timepiece mechanism, said pivot comprising a first revolution guide for the radial retention of a shaft in a plate, and a second frontal guide for the axial limitation of the end of said shaft, and comprising at least one elastic shock absorber acting on at least said first revolution guide and / or said second frontal guide, wherein said at least one elastic shock absorber is made integrally in a micro material -usinable or silicon or quartz or diamond or ruby or corundum at least with a structural element other than said first guide revolution and said second frontal guidance and that includes said plate.
  • the invention also relates to a mechanical clockwork comprising at least one such platinum.
  • the invention relates to the field of watch mechanisms, and more particularly the pivoting of watchmakers.
  • pivoting of clockwork mobiles has a major influence on the quality of movements.
  • manufacture of pivots is expensive, in terms of the number and cost of components, the cost of machining implantations made with high precision geometry, and the mounting of stones and anti-shock devices requires special care.
  • a pivot for the pivoting guidance of the end of a shaft comprises a cabochon housed in a bore or countersink of the plate, this cabochon containing, housed together in a kitten, a radial guide stone of the shaft and a bearing stone and abutment of the axial end of this shaft, and at least one anti-shock device such as a spring suspension stones or kitten.
  • Lubrication constraints require the presence of an oiler whose shape must ensure lubrication in any position.
  • the document CH 700 496 B1 in the name of PATEK PHILIPPE describes a shockproof bearing with elastic means acting axially on a bearing having a pivot receiving hole, and guide means, which are constituted by these elastic means, to force the pad to move only axially, against the elastic return means.
  • the document EP 2 015 147 A2 in the name of ULYSSE NARDIN describes, in Figure 13, a damping bearing comprising two elastic elements, arranged on two superimposed levels. A revolution guide for the radial retention of a shaft is suspended from a first bumper damper and a front guide for the axial retention of the shaft is suspended from a second resilient bumper.
  • the document WO 2011/161139 A1 on behalf of SWATCH GROUP R & D describes a shock-absorbing bearing for a shaft of a mobile comprising a tigeron extended by a pivot, comprising a support provided with a housing for receiving a suspended pivot system in which the tigeron is inserted.
  • This pivot system absorbs shocks to the mobile and is formed of a single piece made of an at least partially amorphous metal alloy.
  • the document EP 2 400 355 A1 in the name of SWATCH GROUP R & D also describes a bearing fulfilling the same function, and which comprises elastic means arranged to exert on the pivot system at least one axial force, and which are made of at least partially amorphous material.
  • the document EP 2,607,971 A1 on behalf of SWATCH GROUP R & D describes a method of manufacturing a bearing having a recess, in a substrate, where the structure of a substrate zone is modified to make it more selective, where this zone is chemically etched to make this bearing, where the substrate is made of material transparent to the wavelength of a laser, where at least one recess is used to form an elastic structure, which comprises a central portion arranged so that the shank of an axis can insert therein and at least one resilient arm extending from this central portion.
  • the invention proposes to provide a pivot with a reduced number of components, and high reliability, preferably operating without lubrication, with good damping qualities, and precise repositioning characteristics after an impact.
  • the present invention uses for this purpose the new micro-component manufacturing technologies, MEMS, "LIGA”, lithography, and the like, to optimize the manufacture of such a pivot.
  • the invention relates to a timepiece according to claim 1.
  • the invention also relates to a mechanical clockwork comprising at least one such platinum.
  • the fact of making monolithic components, and in particular with the plate, has the advantage of reducing the number of parts, and to avoid assembly problems.
  • the invention benefits from the precision of realization of these monolithic components (typically, the parts are for example made of silicon and thus benefit from a micrometric precision).
  • the monolithic turntable incorporating the pivots has the main advantage of guaranteeing the center distances and of forming a precise base for a mechanism, in particular an oscillator in a preferred application, ready for use.
  • a plate having at least one pivot according to the invention thus has a great industrial advantage.
  • the invention relates to the field of watch mechanisms, and more particularly the pivoting of watchmakers.
  • the invention relates to a pivot 45 for a clockwork mechanism, comprising a first revolution guide 46 for the radial retention of a shaft 47 in a plate 2, and a second frontal guide 49 for the axial limitation of the end of the rotor. 47.
  • This pivot 45 comprises at least one elastic shock absorber 48, which acts on at least the first revolution guide 46 and / or the second frontal guidance 49.
  • this at least one elastic shock absorber 48 is made integrally, in a micro-machinable material or in silicon or quartz or diamond or ruby or corundum, at least with a structural element 451 other than the first revolution guide 46 and the second frontal guide 49.
  • this structural element 451 consists in particular of a plate. The invention covers all the variants resulting from a one-piece execution between several of the elementary functional components of a pivot.
  • the pivot according to the invention is made in several levels.
  • the figure 9 is not part of the present invention and illustrates a single-level embodiment, a single component, wherein the plate 2 directly integrates a single elastic shock absorber 48 carrying a single block, whose profile is adapted to constitute the both the first revolution guide 46 and the second frontal guidance 49.
  • first revolution guide 46 and the second frontal guidance 49 are constituted by separate stones
  • a two-level architecture superimposed, a first upper level for supporting the first revolution guide.
  • a second lower level for the support of the second frontal guidance 49, as visible on the Figures 2 to 6 , illustrating non-limiting variants of the invention.
  • Such a two-level architecture does not imply that these two levels are separated, links between the two levels can be made, for example by joining the first revolution guide 46 and the second frontal guidance 49, or the upper kitten 26 and the lower kitten 27, or the first connecting element 48C and the second connecting element 48D, or other, since the junctions can also be made between functional components that do not perform the same function on each of the levels.
  • the design and arrangement of the at least one elastic shock absorber 48, and the at least one connecting element, in its embodiment in flexible form, allow to differentiate in terms of damping radial and axial accelerations.
  • the figure 10 illustrates an example which does not form part of the present invention.
  • the second frontal guidance 49 is suspended from a lower kitten 27 by a second flexible connecting element 48D arranged to accommodate an axial shock in the direction of the shaft 47, this lower kitten 27 is fixed to the upper kitten 26 which also carries the first revolution guide 46, which is suspended from the plate 2 by an elastic shock absorber 48 for preferentially receiving shocks radial component.
  • the pivot 45 comprises a first level and a second superimposed level.
  • the first revolution guide 46 is suspended from this structural element 451 via at least one first bumper damper 48A.
  • the second frontal guide 49 is suspended from this structural element 451 via at least one second bumper damper 48B.
  • the first revolution guide 46 is suspended from an upper chaton 26 by a first connecting element 48C, the upper chaton 26 being suspended from this structural element 451 by means of the first damping element 48A.
  • the first connecting element 48C is a flexible element.
  • the first revolution guide 46, the upper chaton 26, the first connecting element 48C, and the first bumper damper 48A together form a one-piece component.
  • the second frontal guidance 49 is suspended from a lower kitten 27 by a second connecting element 48D, the lower kitten 27 being suspended from this structural element 451 by means of the second damper 48B shocks.
  • the second connecting element 48D is a flexible element.
  • the second frontal guidance 49, the lower kitten 27, the second connecting element 48D, and the second bumper damper 48B together form a one-piece component.
  • the first revolution guide 46, the upper chaton 26, the first connecting element 48C, the first bumper damper 48A, the second frontal guide 49, the lower chaton 27, the second connecting element 48D, and the second bumper damper 48B together form a one-piece component.
  • At least the first revolution guide 46 or the second frontal guide 49 comprises a guide surface of the shaft 47, which is coated with a hard coating or DLC, or the like.
  • the pivot 45 for a clockwork mechanism comprises a first revolution guide 46 for the radial retention of a shaft 47 in a plate 2, and a second frontal guide 49 for the axial limitation. the end of this shaft 47, and comprises at least one elastic shock absorber 48 acting on at least the first revolution guide 46 and / or the second frontal guide 49.
  • the first revolution guide 46 and the second frontal guiding 49 are made in one piece in a micro-machinable material or in silicon or quartz or diamond or ruby or corundum at least with a structural element 451 other than the first revolution guide 46 and the second frontal guidance 49
  • this first revolution guide 46 and this second frontal guide 49 are made integrally with the plate 2.
  • all the variants described in the first embodiment of FIG. Embodiment may be combined with this second embodiment.
  • the invention relates to a turntable 2 comprising at least one such pivot 45.
  • the plate 2 forms the structural element 451 for at least one pivot 45 that it comprises.
  • At least the first revolution guide 46 or the second frontal guide 49 is made integrally with the plate 2 in a micro-machinable material or silicon or quartz or diamond or ruby or corundum.
  • first revolution guide 46 and the second frontal guide 49 are both made in one piece with the plate 2.
  • the invention also relates to the case where only the first revolution guide 46 or the second frontal guide 49 is carried by at least one resilient shock absorber 48 which is specific to it.
  • the invention also relates to a mechanical clockwork movement 100 comprising at least one such plate 2.
  • the invention also relates to all combinations of one-piece integration of several of the traditional components of a pivot.
  • the invention also relates to a pivot assembly 450 intended to be mounted on or in a plate, said pivot assembly comprising at least a first revolution guide 46 for the radial retention of a shaft 47 in a plate 2 and a second frontal guide 49 for the axial limitation of the end of the same shaft 47, and at least one resilient shock absorber 48.
  • the elastic shock absorber 48 is formed integrally with at least one of these spans.
  • the elastic shock absorber 48 is made in one piece with both the first revolution guide 46 and the second frontal guide 49.
  • the invention also relates to a mechanical clockwork movement 100 comprising at least one such plate 2.
  • the lower plate 2 or / and the upper bridge 3, or / and a frame 17, forms such a non-removable integral component 20 with at least one anti-shock bearing for receiving a pivot a component of a mechanism incorporated in a cassette 1, in particular an escape mechanism.
  • a cassette 1 comprises at least one such functional component 10, such as a shaft 47, which is pivotally movable between a lower pivot pin 45 integral with the plate 2 and an upper pivot secured to a not shown bridge, and at least one such lower pivot 45 or greater 44 is integrally formed with the plate 2 or with a bridge and has a revolution range 46 for the radial retention of a shaft 47 of the functional component 10 pivotally movable, and a front surface 49 for the axial limitation of the end of this shaft 47.
  • the revolution range 46 and the front span 49 are preferably carried together by an elastic shock absorber 48 also monobloc with them.
  • Anti-shock can thus be partially or completely made in the plate: the spring of the shock can be achieved in common with the plate.
  • One of the two (or both) stones can be made in common with the plate. Pivoting is then done directly in the silicon.
  • the pivot points can be made directly in silicon with surface coatings of the DLC or other type. So there is no more stone, and the rotation points are positioned very precisely.
  • shockproofing can be achieved with substantially two-dimensional silicon parts or the like, with the two-dimensional plane perpendicular to the axis, or with the two-dimensional plane parallel to the axis.
  • a non-removable integral component such as a pivot 45 or a pivot assembly 450, a plate 2 containing one or / and the other, is made of silicon, and the intrinsic elastic return means of this component unbreakable monoblock are prestressed in an oxidized state of silicon.
  • a particular structuring of the plate 2, or / and a bridge, and / or such integral components unmountable, can compensate for the effects of the expansion of these structural elements, or components of the mechanism. It is for example possible to make the silicon board, then to oxidize it, in order to work coherently.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Micromachines (AREA)
  • Vibration Dampers (AREA)
  • Adornments (AREA)
  • Metallurgy (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
EP13160026.4A 2013-03-19 2013-03-19 Pivot pour mécanisme d'horlogerie Active EP2781972B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CH00629/13A CH707809B1 (fr) 2013-03-19 2013-03-19 Palier pour mécanisme d'horlogerie.
EP13160026.4A EP2781972B1 (fr) 2013-03-19 2013-03-19 Pivot pour mécanisme d'horlogerie
CN201480016909.4A CN105051623B (zh) 2013-03-19 2014-02-13 用于钟表机构的支枢装置
PCT/EP2014/052784 WO2014146832A1 (fr) 2013-03-19 2014-02-13 Pivot pour mécanisme d'horlogerie
JP2015555758A JP6134009B2 (ja) 2013-03-19 2014-02-13 計時器用プレート
EP14704568.6A EP2976684B1 (fr) 2013-03-19 2014-02-13 Pivot pour mécanisme d'horlogerie
US14/764,080 US9684283B2 (en) 2013-03-19 2014-02-13 Pivot for timepiece mechanism
KR1020157024814A KR101777490B1 (ko) 2013-03-19 2014-02-13 타임피스 메카니즘을 위한 피봇
TW103106057A TWI633404B (zh) 2013-03-19 2014-02-24 用於時計之機板及包括此機板的機械式時計機芯
HK16105248.1A HK1217234A1 (zh) 2013-03-19 2016-05-09 用於鐘錶機構的支樞裝置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13160026.4A EP2781972B1 (fr) 2013-03-19 2013-03-19 Pivot pour mécanisme d'horlogerie

Publications (2)

Publication Number Publication Date
EP2781972A1 EP2781972A1 (fr) 2014-09-24
EP2781972B1 true EP2781972B1 (fr) 2018-08-01

Family

ID=47997063

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13160026.4A Active EP2781972B1 (fr) 2013-03-19 2013-03-19 Pivot pour mécanisme d'horlogerie
EP14704568.6A Active EP2976684B1 (fr) 2013-03-19 2014-02-13 Pivot pour mécanisme d'horlogerie

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14704568.6A Active EP2976684B1 (fr) 2013-03-19 2014-02-13 Pivot pour mécanisme d'horlogerie

Country Status (9)

Country Link
US (1) US9684283B2 (ko)
EP (2) EP2781972B1 (ko)
JP (1) JP6134009B2 (ko)
KR (1) KR101777490B1 (ko)
CN (1) CN105051623B (ko)
CH (1) CH707809B1 (ko)
HK (1) HK1217234A1 (ko)
TW (1) TWI633404B (ko)
WO (1) WO2014146832A1 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH709908A1 (fr) * 2014-07-22 2016-01-29 Richemont Int Sa Palier amortisseur de choc pour pièce d'horlogerie.
CH711681A2 (fr) * 2015-10-26 2017-04-28 Eta Sa Mft Horlogère Suisse Guidage flexible en pivotement de mobile horloger.
EP3382472A1 (fr) * 2017-03-30 2018-10-03 Rolex Sa Palier de guidage d'un pivot de balancier de pièce d'horlogerie
EP3671368B1 (fr) * 2018-12-20 2022-11-23 The Swatch Group Research and Development Ltd Palier, notamment amortisseur de choc, et mobile tournant d'un mouvement horloger
EP3792702A1 (fr) * 2019-09-13 2021-03-17 ETA SA Manufacture Horlogère Suisse Palier d'un mouvement horloger, notamment amortisseur de choc, pour un axe d'un mobile tournant
EP3971655A1 (fr) * 2020-09-18 2022-03-23 ETA SA Manufacture Horlogère Suisse Protection antichoc a butee d'un mecanisme resonateur a guidage flexible rotatif

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH235315A (fr) * 1942-09-30 1944-11-30 Erismann Schinz Sa Pare-choc pour pièce d'horlogerie.
CH251926A (fr) * 1943-11-03 1947-11-30 Zurcher Roger Dispositif de palier pare-choc pour mobile d'horlogerie.
CH240840A (fr) * 1944-02-08 1946-01-31 Erismann Gerard Dispositif pare-chocs pour palier de pièces d'horlogerie.
CH272618A (fr) * 1949-02-05 1950-12-31 Erismann Gerard Dispositif pare-chocs.
CH444963A4 (ko) * 1963-04-08 1964-12-31
CH577202B5 (ko) * 1973-10-26 1976-06-30 Parechoc Sa
US6755566B2 (en) * 2001-02-15 2004-06-29 Konrad Damasko Clockwork
JP4257062B2 (ja) * 2002-01-25 2009-04-22 セイコーエプソン株式会社 滑り軸受け装置及び滑り軸受け装置を用いた小型機器
CH700496B1 (fr) * 2007-02-16 2010-09-15 Patek Philippe Sa Geneve Palier antichoc pour pièce d'horlogerie.
CH704739B1 (fr) * 2007-07-12 2012-10-15 Manuf Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle S A Palier amortisseur de chocs pour pièce d'horlogerie.
CH705112B1 (fr) 2007-11-07 2012-12-31 Manuf Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle Sa Palier amortisseur de chocs pour pièce d'horlogerie.
EP2400355A1 (fr) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Système antichoc pour pièce d'horlogerie
WO2011161139A1 (fr) * 2010-06-22 2011-12-29 The Swatch Group Research And Development Ltd Systeme antichoc de piece d'horlogerie
EP2607971A1 (fr) * 2011-12-22 2013-06-26 The Swatch Group Research and Development Ltd. Procédé de réalisation d'un composant

Also Published As

Publication number Publication date
HK1217234A1 (zh) 2016-12-30
US20160041526A1 (en) 2016-02-11
EP2781972A1 (fr) 2014-09-24
KR101777490B1 (ko) 2017-09-11
CH707809A2 (fr) 2014-09-30
TW201502731A (zh) 2015-01-16
EP2976684B1 (fr) 2016-11-02
JP6134009B2 (ja) 2017-05-24
CH707809B1 (fr) 2017-05-31
KR20150119171A (ko) 2015-10-23
CN105051623A (zh) 2015-11-11
CN105051623B (zh) 2017-12-19
JP2016505150A (ja) 2016-02-18
US9684283B2 (en) 2017-06-20
EP2976684A1 (fr) 2016-01-27
TWI633404B (zh) 2018-08-21
WO2014146832A1 (fr) 2014-09-25

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