EP3356891B1 - Uhrwerk mit einem flexiblen führungssystem - Google Patents

Uhrwerk mit einem flexiblen führungssystem Download PDF

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Publication number
EP3356891B1
EP3356891B1 EP16777799.4A EP16777799A EP3356891B1 EP 3356891 B1 EP3356891 B1 EP 3356891B1 EP 16777799 A EP16777799 A EP 16777799A EP 3356891 B1 EP3356891 B1 EP 3356891B1
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EP
European Patent Office
Prior art keywords
opening
timepiece movement
elastic
fixing part
flexible
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
EP16777799.4A
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English (en)
French (fr)
Other versions
EP3356891A1 (de
Inventor
David Chabloz
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.)
Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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Publication date
Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Publication of EP3356891A1 publication Critical patent/EP3356891A1/de
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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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • 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
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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

Definitions

  • the present invention relates to a watch movement, in particular for a wristwatch, comprising a flexible guiding system.
  • Flexible guidance systems are designed to allow the movement of a component in a specific direction in rotation or translation without friction.
  • These systems include elastic guide parts which connect a movable part, constituting said component, to a fixing part used to fix the flexible guide system on a support such as the plate of a watch movement. Examples of such systems are described in the documents EP 2037335 , EP 2273323 And WO 2011/120180 . They all have the disadvantage of occupying a significant space in the movement, particularly in height.
  • the present invention aims to remedy the aforementioned drawback relating to known flexible guiding systems, or at least to attenuate it, and to this end proposes a watch movement according to claim 1.
  • the watch movement according to the invention comprises a frame and a mechanism mounted in or on the frame.
  • the mechanism comprises a flexible guiding system comprising a fixing part and a movable part connected by elastic guide parts.
  • the flexible guide system is located at least partly in an opening of an element of the frame and is fixed by the fixing part to the side wall of said opening.
  • the fixing part and the movable part are more rigid, or include a more rigid part, than the elastic parts.
  • the mechanism includes all or part of the moving components of the movement. It may include several so-called flexible guiding systems to guide several components.
  • the frame can be the fixed frame of the movement or a mobile frame mounted on the fixed frame and carrying the mechanism.
  • the flexible guide system is fixed to the side wall of said opening by an elastic deformation of the fixing part, a deformation which can be purely elastic or which can be an elastic component of a plastic and elastic deformation (driving).
  • the fixing part may comprise a first annular part connected to the movable part by the elastic guide parts and a second annular part surrounding the first annular part and connected to the latter by discrete connecting parts.
  • the fixing part may comprise a first part connected to the movable part by the elastic guide parts and elastic arms connecting the side wall of said opening to the first part.
  • Said element of the frame can be a plate or a bridge.
  • Said opening can be circular and/or through.
  • the fixing part surrounds the movable part.
  • the flexible guidance system is monolithic.
  • the mechanism comprises a component integral with the mobile part and located outside the opening.
  • Such a component can be a balance, an escapement anchor, a lever or a rocker for example.
  • the component may be a clutch rocker carrying a clutch wheel.
  • a flexible guiding system comprises a fixing part 1 and a movable part 2 connected by elastic blades 3.
  • the elastic blades 3 are of the "crossed blades" type not separated” and thus physically intersect at a point 4.
  • the elastic blades 3 form a flexible pivot allowing the movable part 2 to be guided without friction in rotation around the point 4.
  • the fixing part 1, the movable part 2 and the elastic blades 3 are coplanar.
  • the fixing part 1 has an annular shape which surrounds the movable part 2.
  • a radial protrusion 1a located on the interior face of the fixing part 1 serves as an abutment for surfaces 2a of the movable part 2 to limit the angular movement of the movable part 2 relative to the fixing part 1.
  • the fixing part 1 is driven into an opening 5 presented by the plate or a bridge 6 of the fixed frame of a watch movement.
  • the opening 5 is preferably circular and through, as illustrated.
  • the plate or bridge 6 comprising the opening 5 is represented schematically in the form of a ring. Thanks to this arrangement, the flexible guiding system 1, 2, 3 is integrated into the fixed frame of the movement and frees up space for the other moving components of the movement, particularly in height. In addition, great freedom is offered for the placement of the flexible guide system 1, 2, 3 in the movement, since it is sufficient to provide an opening in the plate or a bridge and to introduce the flexible guide system 1 there. , 2, 3. It goes without saying that this principle can also be applied to a mobile frame of the movement mounted on the fixed frame, for example to a tourbillon cage.
  • the mobile part 2 carries assembly means, for example pins or pins 7, by which a mobile component of the movement can be made integral with the mobile part 2.
  • This mobile component is then located outside of the opening 5.
  • This mobile component is for example a lever or rocker such as a clutch rocker 8 carrying a clutch wheel 9 as shown in figure 2 . It could, alternatively, be a balance wheel or an escapement anchor for example.
  • the movement mechanism of which the flexible guiding system 1, 2, 3 is part is partially represented and designated by the reference 20.
  • slots 10 formed in the fixing part 1 divide the latter into two concentric annular parts 11, 12 connected to each other by discrete connecting parts 13.
  • the outer annular part 11 undergoes most of the deformation constraints during driving of the flexible guide system 1, 2, 3 into the opening 5 of the frame.
  • the inner annular part 12 is substantially isolated from the driving constraints by the openings 10.
  • the crossing point 4 of the elastic blades 3, around which the movable part 2 pivots, is thus substantially not moved during driving, this which increases the operating precision of the component.
  • the fixing part 1 comprises an inner annular part 14 which surrounds the movable part 2 and is connected to the latter by the elastic blades 3, and outer elastic arms 15 which are connected to the inner annular part 14 by a connecting part 16.
  • the elastic arms 15 are in contact with the side wall 5a of the opening 5 and maintain the flexible guide system 1, 2, 3 in the opening 5 by their elastic deformation.
  • the flexible guide system 1, 2, 3 can be fixed to the side wall 5a of the opening 5 by bringing the elastic arms 15 closer to each other, then being introduced into the opening 5 then releasing the elastic arms 15 so that they exert constrained against the side wall 5a of the opening 5.
  • the flexible guiding system according to the invention can be produced in a monolithic manner, for example in silicon or any other suitable material according to the deep reactive ion etching technique known as “DRIE” (Deep Reactive Ion Etching), in nickel, nickel alloy. nickel or any other suitable material according to the LIGA technique (lithography, electroplating, casting), in steel, copper-beryllium, nickel silver or other metallic alloy by milling or by electroerosion, or in metallic glass by casting.
  • DRIE Deep reactive ion etching technique
  • LIGA latitude, electroplating, casting
  • steel copper-beryllium, nickel silver or other metallic alloy by milling or by electroerosion, or in metallic glass by casting.
  • the flexible guiding system according to the invention could define another type of flexible pivot than a pivot with non-separated crossed blades, for example a pivot with separate crossed blades or a pivot with a remote center of rotation called "RCC" (Remote Center). Compliance).
  • the flexible guidance system could also, alternatively, be a linear guidance system.
  • the fixing part 1 could be fixed to the side wall 5a of the opening 5 in a manner other than by driving or purely elastic deformation, for example by gluing or welding.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Toys (AREA)

Claims (13)

  1. Uhrwerk, das ein Gestell und einen Mechanismus (20) umfasst, der in oder auf dem Gestell montiert ist, wobei der Mechanismus (20) ein flexibles Führungssystem umfasst, das einen Fixierungsteil (1) und einen beweglichen Teil (2) umfasst, die durch elastische Führungsteile (3) verbunden sind, wobei das flexible Führungssystem (1, 2, 3) sich zumindest teilweise in einer Öffnung (5) eines Elements (6) des Gestells befindet und durch den Befestigungsteil (1) an der Seitenwand (5a) der Öffnung (5) befestigt ist, wobei der Mechanismus (20) ein Bauteil (8) umfasst, das fest mit dem beweglichen Teil (2) verbunden ist und sich außerhalb der Öffnung (5) befindet.
  2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass das Bauteil eine Unruh, ein Hemmungsanker, ein Hebel oder eine Wippe ist.
  3. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass das Bauteil eine Kupplungswippe (8) ist, die ein Kupplungsrad (9) trägt.
  4. Uhrwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das flexible Führungssystem (1, 2, 3) durch eine elastische Verformung des Befestigungsteils (1) an der Seitenwand (5a) der Öffnung (5) befestigt ist.
  5. Uhrwerk nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Befestigungsteil (1) in die Öffnung (5) eingeschlagen ist.
  6. Uhrwerk nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass der Befestigungsteil (1) einen ersten ringförmigen Teil (12), der durch die elastische Führungsteile (3) mit dem beweglichen Teil (2) verbunden ist, und einen zweiten ringförmigen Teil (11) umfasst, der den ersten ringförmigen Teil (12) umgibt und durch getrennte Verbindungsteile (13) mit diesem letzteren verbunden ist.
  7. Uhrwerk nach Anspruch 4, dadurch gekennzeichnet, dass der Befestigungsteil (1) einen ersten Teil (14), der durch die elastische Führungsteile (3) mit dem beweglichen Teil (2) verbunden ist, und elastische Arme (15) umfasst, welche die Seitenwand (5a) der Öffnung (5) mit dem ersten Teil (14) verbinden.
  8. Uhrwerk nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Element (6) eine Platine des Gestells ist.
  9. Uhrwerk nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Element (6) eine Brücke des Gestells ist.
  10. Uhrwerk nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Öffnung (5) kreisförmig ist.
  11. Uhrwerk nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Öffnung (5) durchgehend ist.
  12. Uhrwerk nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass der Befestigungsteil (1) den beweglichen Teil (2) umgibt.
  13. Uhrwerk nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass das flexible Führungssystem (1, 2, 3) monolithisch ist.
EP16777799.4A 2015-09-29 2016-09-26 Uhrwerk mit einem flexiblen führungssystem Active EP3356891B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01409/15A CH711573A2 (en) 2015-09-29 2015-09-29 Watch movement comprising a flexible guiding system.
PCT/IB2016/055739 WO2017055986A1 (fr) 2015-09-29 2016-09-26 Mouvement horloger comprenant un système de guidage flexible

Publications (2)

Publication Number Publication Date
EP3356891A1 EP3356891A1 (de) 2018-08-08
EP3356891B1 true EP3356891B1 (de) 2023-10-04

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Application Number Title Priority Date Filing Date
EP16777799.4A Active EP3356891B1 (de) 2015-09-29 2016-09-26 Uhrwerk mit einem flexiblen führungssystem

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EP (1) EP3356891B1 (de)
CH (1) CH711573A2 (de)
WO (1) WO2017055986A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3561606B1 (de) * 2018-04-27 2022-01-26 The Swatch Group Research and Development Ltd Stossdämpfungsschutz eines resonators mit rcc-schwenkfedern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2037335A2 (de) * 2007-09-13 2009-03-18 August Enzler Anker für eine Uhrenhemmung
CH700496B1 (fr) * 2007-02-16 2010-09-15 Patek Philippe Sa Geneve Palier 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
WO2015097066A2 (fr) * 2013-12-23 2015-07-02 Eta Sa Manufacture Horlogère Suisse Mouvement horloger mecanique a echappement magnetique
US20160246257A1 (en) * 2015-02-20 2016-08-25 Nivarox-Far S.A. Oscillator with a detent escapement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105806B1 (de) * 2008-03-27 2013-11-13 Sowind S.A. Hemmungsmechanismus
CH701421B1 (fr) 2009-07-10 2014-11-28 Manuf Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle Sa Oscillateur mécanique.
CN102971678B (zh) 2010-04-01 2015-07-22 劳力士有限公司 用于齿轮的制动装置
CH708937B1 (fr) * 2013-12-12 2020-03-31 Richemont Int Sa Elément oscillant pour mouvement horloger.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700496B1 (fr) * 2007-02-16 2010-09-15 Patek Philippe Sa Geneve Palier antichoc pour pièce d'horlogerie.
EP2037335A2 (de) * 2007-09-13 2009-03-18 August Enzler Anker für eine Uhrenhemmung
WO2011161139A1 (fr) * 2010-06-22 2011-12-29 The Swatch Group Research And Development Ltd Systeme antichoc de piece d'horlogerie
WO2015097066A2 (fr) * 2013-12-23 2015-07-02 Eta Sa Manufacture Horlogère Suisse Mouvement horloger mecanique a echappement magnetique
US20160246257A1 (en) * 2015-02-20 2016-08-25 Nivarox-Far S.A. Oscillator with a detent escapement

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Publication number Publication date
EP3356891A1 (de) 2018-08-08
WO2017055986A1 (fr) 2017-04-06
CH711573A2 (en) 2017-03-31

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