EP3451075B1 - Uhrwerk, das ein multiaxiales tourbillon umfasst - Google Patents

Uhrwerk, das ein multiaxiales tourbillon umfasst Download PDF

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Publication number
EP3451075B1
EP3451075B1 EP18184211.3A EP18184211A EP3451075B1 EP 3451075 B1 EP3451075 B1 EP 3451075B1 EP 18184211 A EP18184211 A EP 18184211A EP 3451075 B1 EP3451075 B1 EP 3451075B1
Authority
EP
European Patent Office
Prior art keywords
cage
translational
external cage
bearing
watch
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
EP18184211.3A
Other languages
English (en)
French (fr)
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EP3451075A1 (de
Inventor
Alain Zaugg
Christophe Riedo
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.)
Montres Breguet SA
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Montres Breguet SA
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Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Publication of EP3451075A1 publication Critical patent/EP3451075A1/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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels
    • 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
    • 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
    • G04B31/008—Jewel bearings

Definitions

  • the invention relates to a multiaxial vortex, that is to say at least biaxial, comprising a first cage, commonly called an external cage, pivotally mounted on two fixed bearings.
  • a first cage called an external cage
  • a second cage is housed inside the first cage and is rotatably mounted relative to the external cage.
  • the second cage pivots by means of a shaft which extends across the external cage and which is supported by the external cage.
  • the shaft is integral in rotation with a pinion, said pinion being fixed on one end of the shaft located outside the external cage.
  • the pinion is engaged with a wheel, fixed relative to the frame, the axis of which coincides with the axis of rotation of the external cage.
  • a rotation of the second cage therefore causes a rotation of the pinion and thus its displacement along the toothing of the fixed wheel.
  • This displacement causes a rotation of the shaft along the axis of rotation of the external cage and consequently a rotation of the external cage.
  • the rotations of the external cage are enabled by the cooperation between pivots of the external cage and timepieces driven into the bearings.
  • the timepieces are in the form of drilled discs, which allow the pivots to be received and kept axially. It will be understood that moving aside or bringing the timepieces one relative to the other makes it possible to adjust the clearance of the external cage, and that jointly moving the two timepieces on the axis of rotation of the external cage allows very precise adjustment of the gear play, that is to say the distance between the pinion and the fixed wheel.
  • the external cage when it is desired to adjust the clearance of the external cage and / or the gear clearance between the pinion and the fixed wheel, the external cage must first of all be removed from the bearings on which it rests. More specifically, the pivots of the external cage must be removed from the timepieces. The timepieces are then found accessible and can thus be moved relative to the bearings along the axis of rotation of the external cage, conventionally by means of a jib to be driven out. Once the stones are positioned properly, the pivots of the external cage are replaced in the timepieces. Naturally, we understand that this way of proceeding is laborious.
  • the document DE 11 2012 000574 discloses a tourbillon comprising two cages including an external cage pivotally mounted on a frame.
  • the invention provides a timepiece movement as defined in claim 1.
  • a first embodiment is defined in claim 2.
  • a second embodiment is defined in claim 3.
  • the figures 1 to 4 show a tourbillon 40 held on either side by bearings 20, 30 of a frame 10 of a clockwork movement according to the invention.
  • the tourbillon 40 illustrated comprises two concentric cages, a first said external cage 41 and a second cage known as the internal cage 42.
  • the internal cage 42 contains in particular a balance 50, a hairspring, an anchor and an escape wheel 51.
  • the internal cage 42 is pivotally mounted on the outer cage 41 along an axis of rotation A2.
  • the vortex 40 comprises a shaft 43 integral in rotation with the internal cage 42, and extending across the external cage 41 along the second axis of rotation A2.
  • the shaft 43 has two ends, said two ends being supported by two timepieces positioned on two opposite walls of the external cage 41. One of the ends passes through the timepiece which supports it and thus comprises an end zone which s extends outside the external cage 41.
  • a pinion 60 commonly called second pinion, is mounted on this end zone so as to be integral in rotation with the shaft 43.
  • the second pinion 60 has a toothing 61 engaged with a toothing 71 of a wheel 70, fixed relative to the frame 10, commonly known as the fixed mean wheel.
  • the fixed mean wheel 70 is mounted concentric with the first bearing 20, and its axis extends along the axis of rotation A1 of the external cage 41, said axis of rotation A1 being perpendicular to the axis of rotation A2 of the cage internal 42, or even inclined at an angle between 30 and 150 degrees relative to the axis of rotation A2 of the internal cage 42.
  • a rotation of the internal cage 42 equivalent to a rotation of the shaft 43, therefore causes a rotation of the second pinion 60, which causes a rotation of the external cage 41 by means of the displacement of the second pinion 60 in the toothing 71 of the medium wheel 70.
  • the external cage 41 comprises a first pivot 44 supported by a first timepiece stone 52, and a second pivot 45 supported by a second timepiece stone 53. These pivots 44, 45, are positioned on the axis of rotation A1 of the outer cage 41, and secured to opposite walls of the outer cage 41.
  • the first pivot 44, respectively the second pivot 45, has one end 46, respectively one end 47, passing through the first timepiece stone 52, respectively the second timepiece 53, along the axis of rotation A2 of the internal cage 42.
  • the timepieces are in fact, conventionally, drilled in their center so as to receive the end of a pivot.
  • the first timepiece stone 52 is itself supported by a first translation element 80 housed in a first orifice 21 of the first bearing 20.
  • the first timepiece stone 52 is integral with the first translation element 80.
  • the second timepiece stone 53 it is supported by a second translation element 90 housed in a second orifice 31 of the second bearing 30.
  • the second timepiece stone 53 is integral with the second translation element 90.
  • Each translational element 80, 90 therefore has a first end located on the side of the external cage 41, facing one of the pivots 44, 45.
  • the first timepiece stone 52 is maintained at the level from the end of the first translation element 80 located on the side of the external cage 41, while the second timepiece 53 is held at the end of the second translation element 90 located on the side of the cage external 41.
  • the translation elements 80, 90 are for example hollow, and the timepieces 52, 53 are housed in these cavities.
  • the axis of the timepieces 52, 53 coincides with the axis of rotation A1 of the cage 41, the axis of the translation elements 80, 90 and the axis of the pivots 44, 45. It is understood that moving the translation elements 80, 90 makes it possible to move the timepieces 52, 53, the stones of watchmaking being integral with the translation elements.
  • the timepieces 52, 53 are not secured to the translation elements 80, 90, but secured to the frame 10. More precisely, the first timepiece 52 is secured to the first bearing 20, and the second timepiece 53 is integral with the second bearing 30. In addition, the first translation element 80 is in abutment against the end 46 of the first pivot 44, and the second translation element 90 is in abutment against the end 47 of the second pivot 45. It is therefore understood that moving the translation elements 80, 90 makes it possible to move the pivots 44, 45 relative to the timepieces 52, 53.
  • each translation element 80, 90 comprises actuating means 82, 92.
  • the translation elements 80, 90 can be moved.
  • the actuating means 82, 92 are accessible from the outside via the orifices 21, 31.
  • the two translation elements 80, 90 can thus be moved along the axis of rotation A1 of the external cage 41 by means of the actuating means 82, 92.
  • the first translation element 80 and the second translation element 90 are two sockets at least partially threaded.
  • each of these sockets has a threaded cylindrical portion 81, 91 and a non-threaded cylindrical portion.
  • the threaded portion 81, 91 has a diameter less than the diameter of the non-threaded portion.
  • each orifice 21, 31 comprises a tapped cylindrical portion 22, 32 of the same diameter as the threaded portions 81, 91, and a non-tapped cylindrical portion of the same diameter as the non-threaded portions.
  • the actuation means 82, 92 are typically a slot in which a screwdriver can be inserted in order to impose a helical movement on the elements of translation 80, 90.
  • a repositioning element Furthermore, it is advantageous to provide the movement with a repositioning element.
  • the presence of a repositioning element is optional.
  • the repositioning element ensures that the external cage remains or returns immediately to its initial position when it is subjected to an impact.
  • the repositioning element is a magnet 100 housed in a cavity of the second translation element 90, and thus secured to the second translation element 91.
  • the magnet 100 is held against the second timepiece 53, and more particularly of the side of the second timepiece 53 which is opposite to the side where the outer cage 41 is located.
  • the second timepiece 53 is drilled in its center so as to receive the end 47 of the second pivot 45 , the bore extending along the axis of rotation A1 of the external cage 41, between the face of the second timepiece stone 53 located on the side of the external cage 41, and the opposite face.
  • the magnet 100 therefore finds itself in contact with or at least in close proximity to said end 47 of the second pivot 45.
  • a force of attraction is present between the magnet 100 and the second pivot 45.
  • the magnet has been shown in combination with the embodiment of the figure 1 , but we understand that it could have been combined with the embodiment of the figure 4 .
  • the magnet 100 ensures that the second pivot 45, and a fortiori the external cage 41, returns to its initial position. More generally, the addition of a magnetic element near or in contact with one of the pivots 44, 45 of the external cage 41 allows this pivot to be maintained or brought back into forced abutment against the stone. timepiece 52, 53 which supports this pivot 44, 45. This forced support guarantees an invariable position of the external cage 41 and by the same token a uniform gear spacing between the pinion 60 and the fixed wheel 70.
  • the center distance between the pinion and the fixed wheel must be accurate to within 0.02 millimeters and the clearance of an external tourbillon cage is of the order of 0.05 millimeters maximum; we therefore understand that it is advantageous to force the support of one of the pivots against its timepiece.
  • the repositioning element is a spring 101 and piston 102 assembly, this time installed on the side of the first translation element 80. It is noted that the actuating means 82 of the first translation element 80 are then not accessible since the spring 101 and the piston 102 block access to said actuating means 82 and since the first orifice 21 is not through. Thus, only the second translation element 90 can be moved via the access to the actuating elements 92 through the second orifice 31.
  • the axis of the piston 102 passes through the first translation element 80 along the axis of rotation A1 of the external cage 41 and presses against the end 46 of the first pivot 44.
  • the head of the piston 102 outside the first element 80, is in abutment against the spring 101, which also extends along the axis of rotation A1 of the external cage 41.
  • the spring 101 is housed in the first orifice 21 of the first bearing 20, said first orifice 21 also containing the first translation element 80. As mentioned previously, the first orifice 21 does not is not through: at its end opposite to the piston 102, the spring 101 can therefore press against a wall of the first orifice 21.
  • the first pivot 44 exerts pressure against the piston 102, reverberating at the level of the piston head on the spring 101 and compressing said spring 101. Seeking to return to its initial position, the spring 101 moves the piston 102 in the direction of the external cage 41, the axis piston 102 then exerting pressure against the first pivot 44 which causes the outer cage 41 to return to its initial position.
  • the first translational element 80 is of the type presented in the figure 1 , but of course nothing would prevent it from being of the type presented to the figure 4 : It would suffice to produce in the first translational element 80 a cavity passing through it on either side, to insert the axis of the piston 102. In addition, nothing would prevent the second translational element 90 either of the type presented to the figure 4 .
  • the present invention is not limited to the example illustrated but is susceptible to various variants and modifications which will appear to those skilled in the art.
  • the tourbillon could include more than two cages, the invention above all concerning the fixing of the external cage.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Sliding-Contact Bearings (AREA)
  • Machine Tool Units (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Claims (10)

  1. Uhrwerk, umfassend ein Rahmengestell (10) mit einem ersten Lager (20) und einem zweiten Lager (30) und ein Tourbillon (40) mit zwei Gestellen, von denen eines Außengestell (41) genannt wird, wobei das Außengestell (41) am Rahmengestell (10) zwischen dem ersten Lager (20) und dem zweiten Lager (30) drehbar montiert ist, wobei das Werk ferner zwei Uhrensteine (52, 53) umfasst, die zwei Drehzapfen (44, 45) des Außengestells (41) tragen,
    dadurch gekennzeichnet, dass das Werk zwei Translationselemente (80, 90) umfasst, die in Bezug auf die Lager (20, 30) entlang der Drehachse (A1) des Außengestells (41) in der am Rahmengestell (10) montierten Position des Außengestells (41) verschiebbar sind, so dass ein Vorschub der Uhrensteine (52, 53) oder ein Vorschub der Drehzapfen (44, 45) bewirkt wird.
  2. Uhrwerk nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass jedes Translationselement (80, 90) mit einem der Uhrensteine (52, 53) fest verbunden ist.
  3. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass jeder Uhrenstein (52, 53) mit einem Lager (20, 30) fest verbunden ist und mindestens eines der Translationselemente (80, 90) in Kontakt ist mit einem Ende (46, 47) eines der Drehzapfen (44, 45) oder mit einem Repositionierungselement (100, 101, 102), das seinerseits mit einem Ende (46, 47) eines der Drehzapfen (44, 45) in Kontakt ist.
  4. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Translationselement (80, 90) Betätigungsmittel (82, 92) umfasst, die durch eine Öffnung (21, 31) des Lagers (10, 20), das das Translationselement (80, 90) trägt, zugänglich sind.
  5. Uhrwerk nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Betätigungsmittel (82, 92) einen Schlitz aufweisen, um ein Werkzeug wie etwa einen Schraubendreher einzuführen.
  6. Uhrwerk nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass jedes Translationselement (80, 90) eine Hülse mit einem Außengewinde (81, 91) ist, das in ein Innengewinde (22, 32) der Öffnung (21, 32) eingreift.
  7. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es ferner ein Repositionierungselement (100, 101, 102) umfasst, das zumindest teilweise in einem Hohlraum eines der Translationselemente (80, 90), das erstes Translationselement genannt wird, aufgenommen ist und den Halt eines der Drehzapfen (44, 45) in einer Referenzposition in Bezug auf den Uhrenstein (52, 53), der in trägt, ermöglicht.
  8. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Repositionierungselement ein Magnet (100) ist, der teilweise oder vollständig in dem Hohlraum aufgenommen ist.
  9. Uhrwerk nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass nur das andere der Translationselemente (80, 90), das zweites Translationselement (90) genannt wird, in der am Rahmengestell (10) montierten Position des Außengestells (41) verschiebbar ist und das Repositionierungselement eine Feder (101) und einen Kolben (102) aufweist, die beide in einer ersten Öffnung (21) des ersten Lagers (20) aufgenommen sind, wobei sich die Achse des Kolbens (102) durch das erste Translationselement (80) entlang der Drehachse (A1) des Außengestells (41) erstreckt, wobei sich der Kolben (102) auf einer Seite an einem Ende des ersten Drehzapfens (44) und auf der anderen Seite an der Feder (101) abstützt, wobei das zweite Translationselement (90) entlang der Drehachse (A1) des Außengestells (42) verschiebbar ist.
  10. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Translationselement (80, 90) von einem Lager (10, 20) über eine Brücke oder eine Platine des Uhrwerks getragen wird.
EP18184211.3A 2017-08-21 2018-07-18 Uhrwerk, das ein multiaxiales tourbillon umfasst Active EP3451075B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17187096 2017-08-21

Publications (2)

Publication Number Publication Date
EP3451075A1 EP3451075A1 (de) 2019-03-06
EP3451075B1 true EP3451075B1 (de) 2020-06-24

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ID=59677145

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EP18184211.3A Active EP3451075B1 (de) 2017-08-21 2018-07-18 Uhrwerk, das ein multiaxiales tourbillon umfasst

Country Status (4)

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US (1) US11048210B2 (de)
EP (1) EP3451075B1 (de)
JP (1) JP6549294B2 (de)
CN (1) CN109426126B (de)

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Publication number Priority date Publication date Assignee Title
CH242661A (fr) * 1945-09-03 1946-05-31 Surdez Arthur Palier pour axe de mouvement de montre.
DE10160287A1 (de) * 2001-12-07 2003-06-26 Lange Uhren Gmbh Tourbillon
CH697459B1 (fr) * 2003-04-03 2008-10-31 Franck Mueller Watchland S A Tourbillon bi-axial pour mouvement horloger, notamment pour montre-bracelet.
CH699838B1 (fr) * 2004-03-09 2010-05-14 Franck Muller Watchland Sa Tourbillon tri-axial pour pièce d'horlogerie, notamment montre-bracelet.
DE602005009316D1 (de) * 2005-01-28 2008-10-09 Richemont Int Sa Uhr mit Tourbillon
CN201035332Y (zh) * 2007-05-17 2008-03-12 李晨光 可调陀飞轮机构手表机芯
CN101846961B (zh) * 2009-03-26 2012-01-04 天津海鸥表业集团有限公司 一种带有两个陀飞轮的机械手表
CN102809919B (zh) * 2011-05-30 2013-12-18 天津海鸥表业集团有限公司 一种机械手表的双轴陀飞轮机构
CH705244B1 (fr) * 2011-07-07 2016-06-30 Gfpi S A Pièce d'horlogerie.
WO2013044972A1 (fr) * 2011-09-29 2013-04-04 Télôs Watch SA Mouvement horloger comprenant un tourbillon
CH705836B1 (fr) * 2011-12-02 2016-01-15 Lvmh Swiss Mft Sa Pièce d'horlogerie.
EP3029530B1 (de) * 2014-12-03 2019-08-14 Nivarox-FAR S.A. Wirbelmechanismus
US9568887B2 (en) * 2015-03-09 2017-02-14 Seiko Instruments Inc. Operation stabilizing mechanism, movement, and mechanical timepiece
JP1599863S (de) * 2017-03-09 2018-03-19

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
US11048210B2 (en) 2021-06-29
CN109426126A (zh) 2019-03-05
CN109426126B (zh) 2020-10-27
US20190056695A1 (en) 2019-02-21
JP6549294B2 (ja) 2019-07-24
JP2019035747A (ja) 2019-03-07
EP3451075A1 (de) 2019-03-06

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