EP3356891A1 - Zeitbewahrende bewegung mit einem flexiblen führungssystem - Google Patents

Zeitbewahrende bewegung mit einem flexiblen führungssystem

Info

Publication number
EP3356891A1
EP3356891A1 EP16777799.4A EP16777799A EP3356891A1 EP 3356891 A1 EP3356891 A1 EP 3356891A1 EP 16777799 A EP16777799 A EP 16777799A EP 3356891 A1 EP3356891 A1 EP 3356891A1
Authority
EP
European Patent Office
Prior art keywords
opening
movement according
watch movement
frame
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.)
Granted
Application number
EP16777799.4A
Other languages
English (en)
French (fr)
Other versions
EP3356891B1 (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
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Publication of EP3356891A1 publication Critical patent/EP3356891A1/de
Application granted granted Critical
Publication of EP3356891B1 publication Critical patent/EP3356891B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

  • Watch movement comprising a flexible guiding system
  • the present invention relates to a watch movement, in particular for a wristwatch, comprising a flexible guiding system.
  • the flexible guide systems are designed to allow the displacement of a component in a determined direction in rotation or translation without friction.
  • These systems include resilient guide portions which connect a movable portion, constituting said component, to an attachment portion for securing the flexible guide system to a support such as the turntable of a watch movement. Examples of such systems are described in EP 2037335, EP 2273323 and WO 201 1/120180. They all have the disadvantage of occupying an important place in the movement, especially in height.
  • the present invention aims to overcome this drawback, or at least to mitigate it, and proposes for this purpose a watch movement comprising a frame and a mechanism mounted in or on the frame, the mechanism comprising a flexible guide system comprising a part for fixing and a moving part connected by elastic guide parts, characterized in that the flexible guide system is located partly in an opening of a frame member and is fixed by the fastening part to the side wall of said opening.
  • the attachment portion and the movable portion are stiffer, or have a more rigid portion, than the resilient portions.
  • the mechanism includes all or part of the moving components of the movement. It can include several so-called flexible guidance systems to guide multiple components.
  • the frame may be the fixed frame of the movement or a movable frame mounted on the fixed frame and carrying the mechanism.
  • the flexible guiding system is fixed to the side wall of said opening by elastic deformation of the fixing part, deformation which may be purely elastic or which may be an elastic component of a plastic and elastic deformation (hunting).
  • the fixing portion may comprise a first annular portion connected to the movable portion by the elastic guide portions and a second annular portion surrounding the first annular portion and connected thereto by discrete connecting portions.
  • the attachment portion may comprise a first portion connected to the movable portion by the resilient guide portions and resilient arms connecting the side wall of said opening to the first portion.
  • Said element of the frame may be a plate or a bridge.
  • Said opening may be circular and / or through.
  • the attachment portion surrounds the movable portion.
  • the flexible guide system is monolithic.
  • the mechanism may comprise a component integral with the movable portion and located outside the opening.
  • Such a component may be a rocker, an escapement anchor, a lever or a rocker for example.
  • the component may be a clutch rocker carrying a clutch wheel.
  • FIG. 1 is a perspective view of a flexible guide system according to a first embodiment of the invention, driven into an opening of a frame member (platinum or bridge) of a watch movement;
  • FIG. 2 is a perspective view of a part of a watch movement comprising a flexible guiding system according to the invention, the latter being driven into an aperture of the watch movement platen and guiding a clutch lever;
  • FIG. 3 is a perspective view of a flexible guide system according to a second embodiment of the invention, driven into an opening of a frame member (platinum or bridge) of a watch movement;
  • FIG. 4 is a perspective view of a flexible guide system according to a third embodiment of the invention, driven into an opening of a frame member (platinum or bridge) of a watch movement.
  • a flexible guide system comprises a fixing portion 1 and a movable portion 2 connected by resilient blades 3.
  • the elastic blades 3 are of the type "crossed blades not separated” and thus physically intersect at a point 4.
  • the resilient blades 3 form a flexible pivot allowing the movable portion 2 to be guided without friction in rotation about the point 4.
  • the fixing portion 1, the movable portion 2 and the elastic blades 3 are coplanar.
  • the fixing portion 1 has an annular shape which surrounds the movable portion 2.
  • a radial protuberance 1 a located on the inner face of the attachment portion 1 serves as a stop for surfaces 2a of the movable part 2 to limit the angular deflection of the movable part 2 with respect to the attachment part 1.
  • the fixing portion 1 is driven into an opening 5 which the platen 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 the bridge 6 having the opening 5 is shown schematically in the form of a ring.
  • the flexible guide system 1, 2, 3 is integrated with the fixed frame of the movement and frees up space for the other mobile components of the movement, especially in height.
  • 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, 2, 3. It goes of course that this principle can also be applied to a moving frame of the movement mounted on the fixed frame, for example to a tourbillon cage.
  • the moving part 2 could constitute a component of the movement, such as a pendulum.
  • the movable portion 2 carries assembly means, for example pins or pins 7, by which a movable component of the movement can be secured to the movable part 2.
  • This mobile component is then located 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 pendulum or an escape anchor for example.
  • the movement mechanism of which the flexible guide 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 one another by parts
  • the outer annular portion 1 1 undergoes most of the deformation stresses during the driving of the flexible guide system 1, 2, 3 in the opening 5 of the frame.
  • the inner annular portion 12 is, itself, substantially isolated from the driving stresses by the lights 10.
  • the point 4 of crossing the elastic strips 3, around which the movable part 2 pivots, is thus not substantially displaced during the driving, this which increases the operating accuracy of the component.
  • the fixing part 1 comprises an inner annular portion 14 which surrounds the movable part 2 and is connected to the latter by the elastic blades 3, and elastic arms 15 which are connected to the inner annular portion 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 Unlike the first and second embodiments ( Figures 1 and 3) where the flexible guide system 1, 2, 3 is forced into the opening 5 and the attachment portion 1 undergoes elastic and plastic deformation, the elastic component of the deformation ensuring the maintenance of the system 1, 2, 3 in the opening 5, the flexible guide system 1, 2, 3 according to the third embodiment ( Figure 4) can be fixed to the side wall 5a the opening 5 by bringing the elastic arms 15 closer to one another, then being introduced into the opening 5 and then releasing the elastic arms 15 so that they exert stresses against the side wall 5a of the opening 5.
  • the flexible guidance system according to the invention can be produced monolithically, for example in silicon or in any other suitable material according to the technique of deep reactive ion etching (DRIE), in nickel, alloy of nickel or any other suitable material according to the LIGA technique (lithography, electroplating, molding), steel, copper-beryllium, nickel silver or other metal alloy by milling or electroerosion, or metal glass by molding.
  • DRIE deep reactive ion etching
  • the flexible guide system according to the invention could define another type of flexible pivot that a pivot with unseparated 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 guide system could also alternatively be a linear guide system.
  • the fastening portion 1 could be fixed to the side wall 5a of the opening 5 in another way that by driving or purely elastic deformation, for example by gluing or welding.
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 true EP3356891A1 (de) 2018-08-08
EP3356891B1 EP3356891B1 (de) 2023-10-04

Family

ID=57083334

Family Applications (1)

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

Country Status (3)

Country Link
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

Family Cites Families (9)

* 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.
CH708113B1 (de) 2007-09-13 2014-12-15 Stéphane Von Gunten Anker für eine Uhrenhemmung.
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.
WO2011120180A1 (fr) 2010-04-01 2011-10-06 Rolex S.A. Dispositif de blocage pour roue dentée
WO2011161139A1 (fr) * 2010-06-22 2011-12-29 The Swatch Group Research And Development Ltd Systeme antichoc de piece d'horlogerie
CH708937B1 (fr) * 2013-12-12 2020-03-31 Richemont Int Sa Elément oscillant pour mouvement horloger.
EP2990885B1 (de) * 2013-12-23 2017-07-26 ETA SA Manufacture Horlogère Suisse Mechanisches Uhrwerk mit magnetischem Hemmungsmechanismus
CH710759A2 (fr) * 2015-02-20 2016-08-31 Nivarox Far Sa Oscillateur pour une pièce d'horlogerie.

Also Published As

Publication number Publication date
CH711573A2 (en) 2017-03-31
EP3356891B1 (de) 2023-10-04
WO2017055986A1 (fr) 2017-04-06

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