EP2230570A2 - Leichter gemachte und verstärkte Uhrenkomponente - Google Patents

Leichter gemachte und verstärkte Uhrenkomponente Download PDF

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Publication number
EP2230570A2
EP2230570A2 EP10001836A EP10001836A EP2230570A2 EP 2230570 A2 EP2230570 A2 EP 2230570A2 EP 10001836 A EP10001836 A EP 10001836A EP 10001836 A EP10001836 A EP 10001836A EP 2230570 A2 EP2230570 A2 EP 2230570A2
Authority
EP
European Patent Office
Prior art keywords
component
timepiece according
skeletal structure
arms
wheel
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.)
Withdrawn
Application number
EP10001836A
Other languages
English (en)
French (fr)
Inventor
Kilian Eisenegger
Djevad Muminovic
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.)
Mhvj Manufacture Horlogere Vallee De Joux
Original Assignee
Mhvj Manufacture Horlogere Vallee De Joux
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 Mhvj Manufacture Horlogere Vallee De Joux filed Critical Mhvj Manufacture Horlogere Vallee De Joux
Publication of EP2230570A2 publication Critical patent/EP2230570A2/de
Withdrawn legal-status Critical Current

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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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • 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
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • 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
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
    • 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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction

Definitions

  • the present invention relates to the field of watchmaking, and relates to a component of a timepiece comprising a lightened and reinforced structure.
  • this watch component advantageously replaces the traditional components of the regulating member of a watch, namely the escape wheel, the anchor and the balance.
  • the parts made by GFD are obtained by a method of first making a diamond plate more commonly called "wafer" in the desired thickness by means of CVD (Chemical Vapor Deposition) technology. Then, unnecessary parts of the wafer are removed using plasma methods and precision templates. The piece is shaped in the mass. The parts obtained by this technique make it possible to reach a thickness of the order of 0.15 mm.
  • CVD Chemical Vapor Deposition
  • W02004029733 explicitly discloses various watch components at least a portion of which, having a contact surface difficult to lubricate, is made of natural or synthetic diamond.
  • the object of the present invention is therefore to propose a component of a timepiece having a lightened and reinforced mechanical structure, this structure possibly also being in a material other than silicon such as steel or synthetic materials such as than the ruby.
  • this object is achieved by means of a component of a timepiece or watch component according to claim 1.
  • This component is chosen from an escapement wheel, a balance wheel, an anchor, a wheel of a gear train, and an oscillating weight.
  • the watch component comprises a perforated structure of a thickness E.
  • This structure more commonly called skeletal structure, is provided with a plurality of recesses distributed through said structure so that each recess is separated from an adjacent recess by a wall. said stiffener.
  • the width of each stiffener of the skeletal structure is substantially identical and the ratio between the thickness E of said structure and the width ( l ) of each stiffener is between 1 ⁇ 4 and 1.
  • the subject of the invention is also an escapement advantageously comprising an escape wheel, an anchor and / or a balance wheel each comprising a skeletal structure.
  • An exhaust comprising each of these three parts allows a performance gain of greater than 10% compared to a traditional exhaust.
  • the invention further relates to a method of fixing a clock wheel on an axis and more particularly an escape wheel on an exhaust pinion.
  • the escape wheel 1 has according to the Figure 1 and 2 , comprises four curved arms 4 equidistant from 90 ° relative to each other, a serge 5 and a toothing 5 '.
  • the four arms 4, the serge 5 and the toothing 5 'of the escape wheel 1a consist of a so-called skeletal openwork structure.
  • This skeletal structure comprises a multitude of recesses 2 of triangular shape and distributed through said structure so that each recess 2 is separated from an adjacent recess 2 'by a wall 3 called stiffener.
  • the width of each stiffener 3 of the skeletal structure is substantially identical.
  • each recess 2 has been determined in order to obtain a structure having an optimal ratio between the weight of the workpiece and its mechanical strength.
  • the armature as represented by the Figure 1 and 2 provides optimum mechanical strength when the thickness of the escape wheel 1a is about three times the width 1 of each stiffener 3.
  • most angles of the triangular recesses 2 are rounded to minimize the mechanical stresses on the escape wheel 1a.
  • about half of the triangular recesses 2 on the serge 5 have one of their sides adjacent and substantially parallel to a portion of the inner periphery of the serge 5 so as to form a stiffener 3 of geometry substantially identical to the other stiffeners 3 of the wheel 1 a.
  • each triangular recess 2 located on the arms 4 of the escape wheel 1 also has one of its sides adjacent and substantially parallel to a portion of one of the two sides of said arms 4 to form a geometry stiffener 3 substantially identical to the other stiffeners 3.
  • each tooth 5 'of the escape wheel 1 has a triangular recess 2.
  • This escape wheel calls for different techniques that depend on the material used.
  • This escape wheel may for example be made of steel or a synthetic material obtained by a process of micromachining a blank of an escape wheel by laser cutting.
  • the escape wheel may also be silicon having a diamond coating.
  • the silicon escape wheel is obtained by a DRIE (Deep reactive-ion) type etching process. etching).
  • An escape wheel 1a obtained by these manufacturing processes offers several advantages.
  • the following table gives comparative data of an escape wheel 1a according to the invention with respect to a traditional (non-recessed) escape wheel as a function of the material used and the thickness of the wheel 1a.
  • the data in the first row of this table corresponds to a traditional unreflected escape wheel (standard part) while the data in the following lines relate to escape wheels 1 and recessed according to the embodiment of the present invention as illustrated in FIG. Figure 1 and 2 , of different thicknesses.
  • the steel skeleton structure of the escapement wheel 1a makes it possible to obtain thicknesses as small as 0.07mm, which significantly reduces the moment of inertia of the wheel 1a and its weight by more than 50% relative to traditional escape wheel. This reduction of inertia makes it possible to reduce the energy necessary to set the escape wheel 1 a in motion. This small thickness also makes it possible to reduce friction with the pallets of the anchor without the need for a bevel usually made on the thicker escapement wheels in order to reduce the height of the friction surface, in particular. the occurrence on the impulse plan.
  • silicon is also interesting in view of its low density.
  • the mechanical strength of silicon is not as high as that of steel.
  • An escape wheel with a thickness of 0.15mm can nevertheless be made of silicon.
  • a coating of a thin diamond layer of a few microns is then deposited on the wheel by a CVD process in order to improve its mechanical strength.
  • a 0.07mm thick steel escapement wheel or a 0.15mm thick silicon wheel can not be mounted on an exhaust pinion 9 by conventional methods used by those skilled in the art . Indeed, the riveting of the steel wheel 0.07 mm thick on the exhaust pinion 9 is no longer possible since the deformation of the escape wheel 1a would be too important while the weak coefficient of elasticity of silicon and diamond does not lend itself to this type of fixation either. Therefore, different fastening methods have been studied for fixing the escape wheel 1a on the exhaust pinion 9.
  • the attachment of an exhaust wheel 1a steel on the exhaust pinion 9 can be performed by different methods.
  • One of them consists in producing in place of the hub an opening 9a, 9 whose shape is an equidistant triangle 9a or a hexagon 9b intended to receive by driving the axis of the escape pinion 9 ( Figures 4 and 5
  • the steel escape wheel 1a can also be fixed to the exhaust pinion 9 by laser welding at three points preferably equidistant from 120 ° around the pinion 9 ( Figure 7 ).
  • Another method is to fix the escape wheel 1a on the axis of the exhaust pinion 9 by hooping.
  • other components of a timepiece comprise a skeletal structure similar to that of the escape wheel 1a.
  • the figure 8 illustrates an anchor 1c having a rod 6, an inlet arm 7 and an output arm 8 entirely made of the skeletal structure, said structure having recesses 2 of substantially triangular shape.
  • the figure 9 illustrates a balance 1b comprising two arms 4 integrally constituted by the skeletal structure provided with the recesses 2 of triangular shape. These two arms are diametrically opposed and extend from the pivot axis of the balance 1b and whose outer ends are connected to the wheel 5 of the balance 1b.
  • the ratio between the thickness of the arms 4 and the width of each stiffener 3 corresponds approximately to three.
  • the Figure 10 illustrates a variant of a balance 1b whose arms 4, which are four in number, are similar to the arms of the escape wheel 1a according to the Figure 1 .
  • the Figure 11 illustrates another variant of a pendulum.
  • the thickness of the flywheel 5 is preferably at least three times the thickness of the arms 4 skeletal structure.
  • An escapement comprising the escape wheel 1a, the anchor 1c and the balance 1b comprising the skeletal structure as defined by the present invention allows a gain in efficiency greater than 10% that a traditional exhaust.
  • This skeletal structure can also be transposed to an oscillating mass as illustrated by the Figure 12 in order to move the center of gravity of the mass towards its periphery while keeping a great rigidity of the piece.
  • This skeletal structure comprises a connecting portion for connecting the mass sector 10 to the pivot axis.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)
EP10001836A 2009-03-19 2010-02-23 Leichter gemachte und verstärkte Uhrenkomponente Withdrawn EP2230570A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00427/09A CH700640B1 (fr) 2009-03-19 2009-03-19 Pièce d'horlogerie allegée et renforcée.

Publications (1)

Publication Number Publication Date
EP2230570A2 true EP2230570A2 (de) 2010-09-22

Family

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EP10001836A Withdrawn EP2230570A2 (de) 2009-03-19 2010-02-23 Leichter gemachte und verstärkte Uhrenkomponente

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EP (1) EP2230570A2 (de)
CH (1) CH700640B1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363762A1 (de) 2010-03-04 2011-09-07 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
CH703577A3 (fr) * 2011-03-23 2012-02-15 Christian Dior Couture Sa Masse oscillante pour montre automatique et montre automatique comportant une telle masse.
EP2466396A1 (de) * 2010-12-15 2012-06-20 The Swatch Group Research and Development Ltd. Magnetische Abschirmung für Spiralunruh einer Uhr
CH706000A1 (fr) * 2012-01-13 2013-07-15 Christian Dior Couture Sa Masse de remontage.
US8562206B2 (en) 2010-07-12 2013-10-22 Rolex S.A. Hairspring for timepiece hairspring-balance oscillator, and method of manufacture thereof
CH707797A1 (fr) * 2013-03-28 2014-09-30 Silicior Sa Procédé de fabrication d'une pièce micro-mécanique essentiellement plane, et pièce micro-mécanique comportant au moins une portion formée d'oxyde de silicium.
CN108803297A (zh) * 2017-04-28 2018-11-13 精工爱普生株式会社 机械零件以及钟表
WO2018099616A3 (fr) * 2016-11-23 2019-02-21 Eta Sa Manufacture Horlogère Suisse Résonateur rotatif à guidage flexible entretenu par un échappement libre à ancre
CH716153A1 (fr) * 2019-05-07 2020-11-13 Richemont Int Sa Masse oscillante pour pièce d'horlogerie.
USD982468S1 (en) * 2022-02-28 2023-04-04 Cartier International Ag Watch dial
EP4180879A1 (de) * 2021-11-10 2023-05-17 GFD Gesellschaft für Diamantprodukte mbH Mikromechanische baugruppe, verfahren zu deren herstellung und deren verwendung
CN117192928A (zh) * 2022-06-08 2023-12-08 尼瓦洛克斯-法尔股份有限公司 用于惯性减小的擒纵系统的轮

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004029733A2 (fr) 2002-09-25 2004-04-08 Fore Eagle Co Ltd Pieces mecaniques

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1973013B1 (de) * 2007-03-21 2010-12-22 Richemont International S.A. Unruh für Uhrwerk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004029733A2 (fr) 2002-09-25 2004-04-08 Fore Eagle Co Ltd Pieces mecaniques

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8500323B2 (en) 2010-03-04 2013-08-06 Montres Breguet S.A. Timepiece including a high frequency mechanical movement
EP2363762B1 (de) * 2010-03-04 2017-11-22 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
EP2363762A1 (de) 2010-03-04 2011-09-07 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
US8562206B2 (en) 2010-07-12 2013-10-22 Rolex S.A. Hairspring for timepiece hairspring-balance oscillator, and method of manufacture thereof
US9494921B2 (en) 2010-12-15 2016-11-15 The Swatch Group Research And Development Ltd Magnetic shielding for timepiece balance spring
WO2012080021A1 (fr) * 2010-12-15 2012-06-21 The Swatch Group Research And Development Ltd Blindage magnetique pour spiral de piece d'horlogerie
RU2545488C2 (ru) * 2010-12-15 2015-04-10 Те Свотч Груп Рисерч Энд Дивелопмент Лтд Магнитный экран для балансирной пружины часов
EP2466396A1 (de) * 2010-12-15 2012-06-20 The Swatch Group Research and Development Ltd. Magnetische Abschirmung für Spiralunruh einer Uhr
US9256205B2 (en) 2011-03-23 2016-02-09 Christian Dior Couture Sa Oscillating weight for automatic watch
CH703577A3 (fr) * 2011-03-23 2012-02-15 Christian Dior Couture Sa Masse oscillante pour montre automatique et montre automatique comportant une telle masse.
WO2013104732A1 (fr) 2012-01-13 2013-07-18 Christian Dior Couture Sa Masse de remontage
CH706000A1 (fr) * 2012-01-13 2013-07-15 Christian Dior Couture Sa Masse de remontage.
US9104179B2 (en) 2012-01-13 2015-08-11 Christian Dior Couture Sa Winding mass
CH707797A1 (fr) * 2013-03-28 2014-09-30 Silicior Sa Procédé de fabrication d'une pièce micro-mécanique essentiellement plane, et pièce micro-mécanique comportant au moins une portion formée d'oxyde de silicium.
WO2018099616A3 (fr) * 2016-11-23 2019-02-21 Eta Sa Manufacture Horlogère Suisse Résonateur rotatif à guidage flexible entretenu par un échappement libre à ancre
WO2018095593A3 (fr) * 2016-11-23 2019-02-21 Eta Sa Manufacture Horlogère Suisse Résonateur rotatif à guidage flexible entretenu par un échappement libre à ancre
CN109983409A (zh) * 2016-11-23 2019-07-05 Eta瑞士钟表制造股份有限公司 由自由式擒纵机构维持的具有柔性轴承的旋转谐振器
CN109983409B (zh) * 2016-11-23 2020-09-15 Eta瑞士钟表制造股份有限公司 由自由式擒纵机构维持的具有柔性轴承的旋转谐振器
US11467537B2 (en) 2016-11-23 2022-10-11 Eta Sa Manufacture Horlogere Suisse Rotating resonator with flexure bearing maintained by a detached lever escapement
US11487245B2 (en) 2016-11-23 2022-11-01 Eta Sa Manufacture Horlogere Suisse Rotating resonator with flexure bearing maintained by a detached lever escapement
CN108803297A (zh) * 2017-04-28 2018-11-13 精工爱普生株式会社 机械零件以及钟表
CN108803297B (zh) * 2017-04-28 2021-07-09 精工爱普生株式会社 机械零件以及钟表
CH716153A1 (fr) * 2019-05-07 2020-11-13 Richemont Int Sa Masse oscillante pour pièce d'horlogerie.
EP4180879A1 (de) * 2021-11-10 2023-05-17 GFD Gesellschaft für Diamantprodukte mbH Mikromechanische baugruppe, verfahren zu deren herstellung und deren verwendung
USD982468S1 (en) * 2022-02-28 2023-04-04 Cartier International Ag Watch dial
CN117192928A (zh) * 2022-06-08 2023-12-08 尼瓦洛克斯-法尔股份有限公司 用于惯性减小的擒纵系统的轮

Also Published As

Publication number Publication date
CH700640B1 (fr) 2014-09-30
CH700640A1 (fr) 2010-09-30

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