EP3021173A1 - Ringförmige Schwungmasse und Uhr, die eine solche Schwungmasse umfasst - Google Patents

Ringförmige Schwungmasse und Uhr, die eine solche Schwungmasse umfasst Download PDF

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Publication number
EP3021173A1
EP3021173A1 EP14193348.1A EP14193348A EP3021173A1 EP 3021173 A1 EP3021173 A1 EP 3021173A1 EP 14193348 A EP14193348 A EP 14193348A EP 3021173 A1 EP3021173 A1 EP 3021173A1
Authority
EP
European Patent Office
Prior art keywords
annular
oscillating
drive ring
flexible rods
oscillating mass
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
EP14193348.1A
Other languages
English (en)
French (fr)
Other versions
EP3021173B1 (de
Inventor
Marco Rochat
Samuel Cordier
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.)
Blancpain SA
Original Assignee
Blancpain 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
Application filed by Blancpain SA filed Critical Blancpain SA
Priority to EP14193348.1A priority Critical patent/EP3021173B1/de
Priority to US14/930,746 priority patent/US9557712B2/en
Priority to JP2015221854A priority patent/JP6293719B2/ja
Priority to CN201510781705.6A priority patent/CN105607455B/zh
Priority to RU2015148885A priority patent/RU2620489C2/ru
Publication of EP3021173A1 publication Critical patent/EP3021173A1/de
Application granted granted Critical
Publication of EP3021173B1 publication Critical patent/EP3021173B1/de
Priority to JP2017177404A priority patent/JP6381758B2/ja
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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • 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
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited
    • G04B5/12—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited acting in one direction only
    • 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
    • G04B5/165—Weights consisting of several 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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements
    • 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
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited
    • G04B5/14—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited acting in both directions
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/184—Guide arrangement of the moving weight in a circular course
    • 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
    • G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/188—Bearing, guide arrangements or suspension of the movement forming oscillating weight

Definitions

  • the present invention relates to an annular oscillating mass comprising a drive ring comprising an annular transmission portion provided with a toothing coaxial with the ring, and a heavy sector attached to the drive ring.
  • the present invention also relates to a timepiece movement and a timepiece with automatic winding which respectively comprise the annular oscillating weight of the invention.
  • the function of the rollers is to guide the ring and to minimize friction.
  • they are preferably mounted on ball bearings.
  • the rollers must be at least three in number.
  • a known problem with the annular oscillating masses which correspond to the description above is related to the relative fragility of the rollers in view of the considerable inertia of the oscillating mass.
  • the considerable weight of the oscillating mass may, for example, lead to a break in the axis of the rollers, or alternatively cause the bearing to seize. balls.
  • the axial displacement of the oscillating mass may damage the gear wheel which meshes with the drive ring.
  • the patent document CH 701 343 B1 proposes to mount each of the rollers on a damping member preferably constituted by a rocker biased by a spring.
  • the function of the damping members is to allow damping any inadvertent movement of the oscillating mass in the radial direction following an impact.
  • the solution proposed by the aforementioned patent document does not allow to dampen the movements of the oscillating mass in the axial direction.
  • An object of the present invention is to overcome the problems of the prior art which have just been exposed. It achieves this goal by providing an annular oscillating mass according to the appended claim 1.
  • the annular transmission portion of the drive ring and the heavy sector are connected directly or indirectly to one another.
  • the connection between the annular transmission part and the heavy sector is carried out by means of a plurality of elements of elastically deformable connection.
  • the elastically deformable connecting elements are constituted by flexible elastic rods.
  • This feature allows the heavy sector to deviate from its normal path in all directions relative to the annular transmission portion.
  • the longitudinal axes of the flexible rods preferably extend in the same plane parallel to the drive ring.
  • the flexible rods have at least one fork.
  • the rods have the general shape of a Y with a single fork.
  • the rods fork in two places, on either side of the middle of the rod.
  • the rods comprise two opposite forks which give them the general shape of a double Y.
  • the fork portions of the rods are preferably also contained in the plane parallel to the drive ring in which extends the longitudinal axis.
  • the fact that the branches have forks contained in a plane parallel to the drive ring has the advantage of increasing the restoring force in the event of stress in the tangential direction at the end. 'ring.
  • the invention also relates to a self-winding timepiece movement according to claim 10 of the patent as well as a self-winding timepiece according to claim 11 of the patent.
  • the figure 1 is a perspective view of an annular oscillating mass 3 corresponding to a first embodiment of the invention.
  • the oscillating mass shown comprises a drive ring 5 and a heavy sector 7.
  • the drive ring comprises a plurality of elastically deformable connecting elements 9 which extend between an annular transmission part 11 and a second annular portion 13.
  • the heavy sector 7 is carried by and secured to the second annular portion, while the annular transmission portion has a concentric inner toothing 15.
  • the elastically deformable connecting elements 9 have the shape of rods arranged parallel to the plane of the driving ring 5. These rods each have a fork giving them the shape of a Y having its upper portion facing the second annular portion 13. It may be noted that in the illustrated embodiment, the rods have their longitudinal axis oriented radially and that the branches of the fork deviate from the longitudinal axis in a plane parallel to the drive ring and are integral with the second annular portion 13.
  • the rods 9 are flexible so that they can be deformed in case of shock.
  • the rods shown are arranged to allow the second annular portion 13 to deviate from its equilibrium position relative to the annular transmission portion 11 in the three directions (axial, radial and tangential).
  • the oscillating mass 3 represented in the figure 1 is part of a self-winding timepiece of which only a winding mobile 17 and three rollers 19 are illustrated.
  • the winding mobile 17 comprises a gear which meshes with the internal toothing 15 of the drive ring 5.
  • the function of the mobile winding is to transmit the rotational movements of the oscillating mass to the winding mechanism (not shown) so as to arm the mainspring.
  • the rollers 19 are preferably equipped with ball bearings (not shown).
  • the function of the rollers is to support and guide the oscillating mass, so that it is free to turn crazy around the circle passing through the three rollers.
  • the annular transmission portion 11 of the drive ring 5 has an annular groove 21.
  • the groove 21 is arranged to cooperate with an equatorial bulge 23 that has the circumference of the rollers 19. It can be seen that the bulge 19 enters the groove 21. It will be understood that this arrangement ensures the axial positioning of the annular oscillating mass.
  • the oscillating mass 3 of the present example is designed to dampen shocks.
  • a small object like a watch receives a shock, it undergoes a sudden acceleration in the direction of the shock.
  • the sudden acceleration of the timepiece is transmitted to the oscillating weight that it contains by means of the rollers of
  • the inertia of the oscillating mass 3 is essentially located in the heavy sector 7, the latter exerts a considerable force of inertia on the rest of the oscillating mass.
  • this inertial force is oriented in the radial direction (parallel to the plane of the drive ring 5 and towards the axis of rotation of the oscillating mass), it produces a displacement of the second part. annular 13 relative to the annular transmission portion 11 in the plane of the drive ring. It will be understood that, according to the invention, this displacement is made possible by the deformation of the connecting elements (in this example, the bending deformation of the rods 9 or their fork), and that this displacement contributes to damping the shock, and in particular to protect the ball bearings of the rollers 19.
  • rollers 19 are arranged to maintain the oscillating mass 3 not only radially, but also axially through the cooperation between the equatorial bulge 23 and the groove 21.
  • the rollers also transmit to the oscillating weight l acceleration due to an axial impact exerted on the bottom or dial side of the timepiece.
  • the heavy sector exerts a considerable inertial force in the axial direction (perpendicular to the plane of the drive ring) on the rest of the oscillating mass.
  • This force produces a displacement of the second annular portion 13 relative to the annular transmission portion 11.
  • This displacement is oriented perpendicular to the plane of the drive ring 5. It will be understood that as before, this displacement is made possible by the flexion rods 9, and that this movement protects the rollers and the winding mobile by damping the shock suffered by the timepiece.
  • the Figures 4A, 4B and 4C schematically illustrate three embodiments of elastically deformable connecting elements.
  • the embodiment illustrated in the Figure 4A corresponds to that of the example just described.
  • the Figures 4B and 4C illustrate two other embodiments in which the connecting elements are also constituted by flexible rods arranged to deform elastically.
  • the flexible rods represented (referenced 29) each comprise a middle, an inner end and an outer end. It can be seen that the flexible rods are divided in two on either side of the middle towards each of the ends. This characteristic gives the rods the shape of a double Y.
  • the two forks of the double Y are each included in a plane parallel to the drive ring 5.
  • the flexible rods 39 of the realization of the figure 4C have a longitudinal axis which is not oriented in the radial direction but which form a non-zero angle with the radius in the center of the second annular portion 13 passing through the point of attachment of said radius.
  • the second annular portion could be concentrically disposed within the annular transmission portion.
  • the elastically deformable connecting elements are not necessarily constituted by flexible rods. Indeed, these connecting elements could alternatively be constituted by flip-flops (three or more) each associated with a spring.
  • the drive ring of the invention may be formed of a material comprising silicon, that is to say, for example, monocrystalline silicon, polycrystalline silicon, doped silicon monocrystalline, silicon doped polycrystalline doped silicon carbide or not doped or doped silicon nitride doped or non-doped silicon oxide such as quartz or silica.
  • the anisotropic etching of such materials can be carried out wet or dry and typically by an anisotropic attack of the deep reactive ion etching type also known by the abbreviation DRIE from the English term "Deep Reactive Ion Etching".
  • the drive ring of the invention may be formed of precious metal or not, typically by the electroforming technique known by the abbreviation L.I.G.A. from the German terms "RöntgenLithographie, Galvanoformung & Abformung” and in which a mold is filled at one or more levels with the aid of a metal, for example, by electroplating.
  • L.I.G.A. the electroforming technique known by the abbreviation L.I.G.A. from the German terms "RöntgenLithographie, Galvanoformung & Abformung”
  • a mold is filled at one or more levels with the aid of a metal, for example, by electroplating.
  • any type of electroforming, type L.I.G.A. or not, able to form a monoblock training ring at one or more levels is possible.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Toys (AREA)
  • Gears, Cams (AREA)
EP14193348.1A 2014-11-14 2014-11-14 Ringförmige Schwungmasse und Uhr, die eine solche Schwungmasse umfasst Active EP3021173B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14193348.1A EP3021173B1 (de) 2014-11-14 2014-11-14 Ringförmige Schwungmasse und Uhr, die eine solche Schwungmasse umfasst
US14/930,746 US9557712B2 (en) 2014-11-14 2015-11-03 Annular oscillating weight and timepiece comprising such an oscillating weight
JP2015221854A JP6293719B2 (ja) 2014-11-14 2015-11-12 環状振動重量体及びこのような振動重量体を有する計時器
CN201510781705.6A CN105607455B (zh) 2014-11-14 2015-11-13 环形自动摆锤和包括该自动摆锤的钟表
RU2015148885A RU2620489C2 (ru) 2014-11-14 2015-11-13 Кольцевой качающийся груз и часы, содержащие такой качающийся груз
JP2017177404A JP6381758B2 (ja) 2014-11-14 2017-09-15 環状振動重量体及びこのような振動重量体を有する計時器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14193348.1A EP3021173B1 (de) 2014-11-14 2014-11-14 Ringförmige Schwungmasse und Uhr, die eine solche Schwungmasse umfasst

Publications (2)

Publication Number Publication Date
EP3021173A1 true EP3021173A1 (de) 2016-05-18
EP3021173B1 EP3021173B1 (de) 2017-05-24

Family

ID=51893949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14193348.1A Active EP3021173B1 (de) 2014-11-14 2014-11-14 Ringförmige Schwungmasse und Uhr, die eine solche Schwungmasse umfasst

Country Status (5)

Country Link
US (1) US9557712B2 (de)
EP (1) EP3021173B1 (de)
JP (2) JP6293719B2 (de)
CN (1) CN105607455B (de)
RU (1) RU2620489C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964896A1 (de) * 2020-09-08 2022-03-09 Blancpain SA Automatischer aufziehmechanismus einer armbanduhr mit einer schwungmasse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH711828A2 (fr) * 2017-02-22 2017-05-31 Csem Centre Suisse D'electronique Et De Microtechnique Sa - Rech Et Développement Pièce d'horlogerie micromécanique multi-niveaux et son procédé de fabrication.
CN107422626B (zh) * 2017-09-13 2022-10-11 杭州正驰达精密机械有限公司 一种自动锤的转轴定位结构
EP3627232B1 (de) * 2018-09-24 2021-05-05 ETA SA Manufacture Horlogère Suisse Uhrwerk mit automatischem aufzug, das stundenzeiger auf der seite des rotors umfasst

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CH281490A (fr) * 1950-03-06 1952-03-15 Movado Montres Pièce d'horlogerie à remontage automatique par masse oscillante.
CH286915A (fr) * 1950-06-07 1952-11-15 Ed Jaeger Fabrique D Horlogeri Dispositif de remontage automatique pour montre.
EP2110719A1 (de) * 2008-04-15 2009-10-21 Montres Jaquet Droz SA Stoßdämpfer für Schwungmasse
CH701343B1 (de) 2008-02-22 2011-01-14 Bucherer Montres S A Automatischer Aufzugmechanismus für eine Uhr sowie Uhr mit einem solchen Aufzugmechanismus.

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JPS5397152A (en) * 1977-02-02 1978-08-25 Kanji Imazaike Gear
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SU1118956A1 (ru) * 1982-02-01 1984-10-15 Пензенский Политехнический Институт Механизм подзавода наручных часов
JPH0321739U (de) * 1989-07-14 1991-03-05
DE69633407T2 (de) * 1995-11-21 2005-03-03 Seiko Epson Corp. Elektronische Uhr
JPH11183645A (ja) * 1997-12-18 1999-07-09 Seiko Instruments Inc 自動巻時計
JP3832270B2 (ja) * 2001-04-13 2006-10-11 セイコーエプソン株式会社 偏心錘付時計
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WO2005054961A1 (en) * 2003-12-02 2005-06-16 Luca Freudiger Oscillating eccentric weight for the self-winding system of a timepiece, enabling all the mechanism of the timepiece to be viewed
DE602006007807D1 (de) * 2006-04-07 2009-08-27 Eta Sa Mft Horlogere Suisse Mechanischer Wechsler zum Drehantreiben eines Rades aus einer einzelnen Richtung
CH714952B1 (fr) * 2007-05-08 2019-10-31 Patek Philippe Sa Geneve Composant horloger, son procédé de fabrication et application de ce procédé.
DE202011110747U1 (de) * 2010-08-06 2016-01-14 Damasko Gmbh Schwingkörper, mechanisches Schwingsystem für Armbanduhren mit einem solchen Schwingkörper sowie Uhr mit einem derartigen Schwingsystem
CH704051B1 (fr) * 2010-11-04 2013-10-15 Nivarox Sa Echappement synchrone pour mécanisme d'horlogerie.
JP5964089B2 (ja) * 2012-03-07 2016-08-03 セイコーインスツル株式会社 時計用回転錘および時計用回転錘を備えた時計
CH707590B1 (fr) * 2013-02-12 2017-08-15 Eta Sa Mft Horlogère Suisse Roue d'horlogerie antichoc, notamment de centre.
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Publication number Priority date Publication date Assignee Title
CH281490A (fr) * 1950-03-06 1952-03-15 Movado Montres Pièce d'horlogerie à remontage automatique par masse oscillante.
CH286915A (fr) * 1950-06-07 1952-11-15 Ed Jaeger Fabrique D Horlogeri Dispositif de remontage automatique pour montre.
CH701343B1 (de) 2008-02-22 2011-01-14 Bucherer Montres S A Automatischer Aufzugmechanismus für eine Uhr sowie Uhr mit einem solchen Aufzugmechanismus.
EP2110719A1 (de) * 2008-04-15 2009-10-21 Montres Jaquet Droz SA Stoßdämpfer für Schwungmasse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964896A1 (de) * 2020-09-08 2022-03-09 Blancpain SA Automatischer aufziehmechanismus einer armbanduhr mit einer schwungmasse

Also Published As

Publication number Publication date
JP2016095306A (ja) 2016-05-26
JP6293719B2 (ja) 2018-03-14
US9557712B2 (en) 2017-01-31
RU2620489C2 (ru) 2017-05-25
US20160139563A1 (en) 2016-05-19
JP2018010010A (ja) 2018-01-18
EP3021173B1 (de) 2017-05-24
JP6381758B2 (ja) 2018-08-29
CN105607455B (zh) 2018-04-03
RU2015148885A (ru) 2017-05-19
CN105607455A (zh) 2016-05-25

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