EP1319997B1 - Dispositif à force constante - Google Patents

Dispositif à force constante Download PDF

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Publication number
EP1319997B1
EP1319997B1 EP01129893A EP01129893A EP1319997B1 EP 1319997 B1 EP1319997 B1 EP 1319997B1 EP 01129893 A EP01129893 A EP 01129893A EP 01129893 A EP01129893 A EP 01129893A EP 1319997 B1 EP1319997 B1 EP 1319997B1
Authority
EP
European Patent Office
Prior art keywords
wheel
escapement
constant
force
force compensation
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.)
Expired - Lifetime
Application number
EP01129893A
Other languages
German (de)
English (en)
Other versions
EP1319997A1 (fr
Inventor
Jean-François Mojon
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.)
Richemont International SA
Original Assignee
Richemont International 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 Richemont International SA filed Critical Richemont International SA
Priority to AT01129893T priority Critical patent/ATE469378T1/de
Priority to DE50115494T priority patent/DE50115494D1/de
Priority to EP01129893A priority patent/EP1319997B1/fr
Priority to US10/304,849 priority patent/US6863434B2/en
Priority to CNB021563225A priority patent/CN100356279C/zh
Priority to JP2002364097A priority patent/JP4105941B2/ja
Publication of EP1319997A1 publication Critical patent/EP1319997A1/fr
Priority to HK03105162.8A priority patent/HK1052979B/zh
Application granted granted Critical
Publication of EP1319997B1 publication Critical patent/EP1319997B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G04B15/00—Escapements
    • G04B15/10—Escapements with constant impulses for the regulating mechanism

Definitions

  • the present invention relates to a constant force device for precise gear regulation of mechanical movements by means of a uniform force transmission from the escape wheel on the Regulierorgan the clock, said device is integrated into a tourbillon mechanism.
  • the transmitted force can be regarded as far more constant than the sole drive of Regulierorgans only on the mainspring.
  • This stop wheel is concentric with the named constant wheel, which gives an approximately constant torque to the Regulierorgan, arranged, between these wheels, a biased coil spring is placed, which is subject by mutual rotation of these wheels of said periodic restraint. This can reduce to maintain the vibration of Regulierorgans controlled by the first anchor via the escape wheel and the drive way and rebuild at a time determined by the second anchor.
  • the concentric arrangement of the stop wheel relative to the approximately constant torque transmitting wheel leads to difficulties both constructive and functional nature.
  • the patent CH 120028 also sets forth such a constant force device, wherein the prestressed auxiliary spring between the stop wheel and the concentric arranged to this escape wheel.
  • the escape wheel gives an approximately constant torque to the regulator.
  • the transmission of an approximately constant torque is based on the same principle as the above embodiment despite different design of the device and a different arrangement of the associated anchor substantially. While conventional constant-force devices of this kind certainly provide improvements, such as an inhibition no longer influenced by the inertia of the gear train, the possibility of having the gear train fully subdued with appropriate design and, in particular, the transmission of a relatively constant torque, are nevertheless possible various disadvantages present.
  • the object of the present invention is to overcome the aforesaid difficulties and in particular the transmission of an actually constant torque to the regulating member of the watch and the consideration of non-concentric placement of the stop wheel relative to the constant torque transmitting wheel and integration into one Tourbillon mechanism resulting advantages.
  • the invention has a constant force device as an object, which is characterized by the enumerated in claim 1 license plate.
  • FIG. 1 is a top view of a tourbillon mechanism equipped with a constant force device according to the invention.
  • FIG. 2 shows the tourbillon mechanism including the constant force device in section along the line A - A according to the FIG. 1 ,
  • FIG. 3 For better understanding, the essential components of the device without the tourbillon cage as in FIG. 1 in a plan view.
  • FIG. 4 Fig. 10 is a plan view of the main component of the constant force device.
  • FIG. 5 is a section of the constant force device along the line A - A according to the FIG. 4 to illustrate in detail the integrated force compensation mechanism.
  • FIG. 6 schematically illustrates the operation of the force balance mechanism.
  • the tourbillon mechanism illustrated incorporates a constant force device according to the present invention.
  • the tourbillon mechanism has a tourbillon cage 1, in the center of which a balance 2 is rotatably mounted, a coil spring 3, a drive wheel 13 and a fixed second wheel 14, and possibly an unillustrated, concentrically arranged second fixed second wheel of different numbers or diameters , on.
  • Stopradtrieb 12 a which is fixedly connected to a stop wheel 12 and in Tourbillonhimfig 1 is not centric, rotatably mounted.
  • This stop wheel 12 has in the embodiment shown here two teeth cooperating with the anchor pallets 11 a and 11 b of a second armature 11 of the constant force device, which is pivotally mounted in the illustrated example in the axis of the tourbillon mechanism.
  • Said anchor 11 is controlled by means of a fork-shaped, the anchor pallets 11 a and 11 b opposing portion 11 c of this armature 11 by a Reuleauxnocken 5, wherein the Reuleauxnocken 5 the shape of an equilateral triangle whose three sides form circular sections instead of lines possesses. These three sides of the Reuleaux cam 5 cooperate in a conventional manner with the fork-shaped part 11c of the armature 11 to control its pivotal movements.
  • the Reuleauxnocken 5 is part of another complex of Konstantkraftvorraum, which in turn is not centrally mounted in Tourbillonhimfig 1 and in particular not concentric with the stop wheel 12.
  • the axis of this in the FIGS. 4 to 6 as a plan view, section and shown in its operation complex is formed by the escape wheel 9, which is rotatably embedded in Tourbillonhimfig 1 and at which in the upper portion of the Reuleauxnocken 5 and below an escape wheel 6 are attached.
  • This escape wheel 6 has the teeth formed in the usual way and thus allows the movement of the escape wheel 6 by means of a seated on the tourbillon cage 1 and controlled by the balance 2 first armature 4, the two with the teeth of the escape wheel alternately engaged standing anchor pallets has to block or release.
  • a tension ring drive 8 is mounted, rotatable about the same, to which a tension ring 7 is attached.
  • the tension ring drive 8 is supported by a bushing 26 and is analogous to the stop wheel 12a engaged with the fixed second gear 14, which can provide the possibilities for the relative position of these two elements when integrating a constant force device according to the present invention in a tourbillon mechanism.
  • a coil spring 10 of the constant force device wherein this is realized by means of a special force compensation mechanism.
  • This force compensation mechanism initially has a force compensation eccentric 20 fastened on the side of the tension ring 7 opposite the escape wheel 6, the axis of which is displaced parallel to the axis of the escape wheel shaft 9 and the axis of rotation of the tension ring drive 8 which is identical to the latter.
  • Eccentric 20 is a force-compensating disc 21 rotatably mounted, which in the present example has two opposite arms as points of attack (21a, 21b), but of course quite different, functionally identical shape can take.
  • this disc is a fixed to the escapement 9, fixed coil spring 23, to which a free end of the coil spring 10 is attached.
  • the other free end is fixed to a mobile spiral spring roller 22 which is rotatably mounted around the fixed spiral spring roller 23 and thus about the axis of the escape wheel shaft 9.
  • Both the fixed spiral spring roller 23 and the mobile spiral spring roller 22 have in a, at the outer edge of the respective spiral spring roller and here at the same distance from the axis of the escape wheel shaft 9 hole downwardly, in the direction of the force compensation disc 21 exiting pin 24 and 25 ,
  • These two pins 24 and 25 are placed so that they are located on the same side of a located in the line of the two arms of the force compensation disc 21, on this latter vertical plane and can cooperate with these arms 21 a and 21 b.
  • the mode of operation of a device designed in this way can also be illustrated by way of example with reference to the illustrated embodiment.
  • the drive of the balance 2 takes place by the prestressed coil spring 10, the provision of the balance by the second coil spring 3.
  • the stop wheel 12 and the cage 1 of Tourbillon mechanism on the Reuleauxnocken 5 and the second armature 11 released.
  • the stop wheel 12 then rotates by a certain given by its number of teeth angle, in the present case by 90 °, and is stopped by an anchor pallet of the armature 11 again.
  • tensioned coil spring 10 exerts a force on the located in this coil spring roller pin 22 25, which transmits this force via one of said arms of the force-compensating pulley 21 as a torque to this.
  • the other arm of the force-balancing pulley 21 acts on the pin 25 fixed in the fixed spiral spring roller 23 and thus transmits the torque to this fixed spiral spring roller 23 and the escape wheel 6.
  • the escape wheel 6 is released from the first armature 4 and rotates under the influence of the tensioned coil spring 10 by an angle ⁇ about its axis, as well as the fixed coil spring 23 and the force-balancing pulley 21, while the tension ring 7 and Stop wheel 12 are blocked.
  • the stop wheel and the tourbillon cage are also released.
  • the tension ring 7 rotates by a predetermined angle, in the present example by 60 °, and returns to its initial position relative to the escape wheel 6, resulting in the re-tensioning of the coil spring 10 by a certain quantity.
  • the entire process described repeats periodically and thus allows constantly to transmit a constant torque from the escape wheel 6 to the regulating member of the watch, the balance 2.
  • this device provides as described by means of the special force compensation mechanism a corrected to the decreasing voltage of the driving coil spring, constant torque to the regulating member of the clock, in contrast to the conventional constant-force devices.
  • the introduced force compensation mechanism consists of only three new parts and therefore does not constitute a significant complication of the device, especially in so far as little space is needed and these parts can be easily arranged around the escape wheel shaft.
  • the system can be adjusted so that the torque remains constant, even if the bias of the coil spring deviates within a certain range.
  • the position of the stop wheel can be freely selected by the fixed second wheel, it can also be engaged by its drive with a second fixed second wheel of different diameter.
  • the diameter and the number of teeth of the stop wheel and the number of teeth of the stop wheel can be chosen freely within a certain frame, whereby the engagement of the anchor pallets are optimized and the rotational speed of the stop wheel may be different from that of the escape wheel.
  • the arrangement of the axis of rotation of the second armature in the center of the tourbillon cage is advantageous. This avoids influencing the moment of inertia of the tourbillon cage by the anchor as opposed to otherwise placing it, and optimizes the dynamics of the system.
  • the exemplified embodiment is in no way limiting insofar as the additional features shown there, such as the non-concentric position of the stop wheel relative to the constant torque transmitting wheel, the placement of the second armature in the center of the bogie, or integration into a tourbillon mechanism, are omitted can or as well as the detail design of the Force compensation mechanism can be subject to functionally identical changes.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Braking Arrangements (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Crushing And Grinding (AREA)
  • Springs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Testing Of Balance (AREA)
  • Soil Working Implements (AREA)

Claims (6)

  1. Dispositif à force constante, qui présente une roue d'arrêt (12) fixée sur une commande de roue d'arrêt (12a), une roue d'ancre (6) fixée sur un arbre de roue d'ancre (9), une bague de tension (7) fixée sur une commande de bague de tension (8) et une came (5) fixée sur l'arbre de roue d'ancre (9), le mouvement de la roue d'ancre (6) étant bloqué ou libéré par deux palettes d'ancre d'une première ancre (4), et le mouvement de la roue d'arrêt (12) étant bloqué ou libéré par deux palettes d'ancre (11a, 11b) d'une seconde ancre (11), qui est commandée au moyen d'une partie, en prise avec la came (5), en forme de fourche, de cette ancre (11), le dispositif présentant un mécanisme d'équilibrage de force qui, en équilibrant la tension décroissante d'un ressort (10) fournissant l'énergie d'entraînement, garantit la transmission d'un couple constant à l'organe de régulation d'une horloge, ce mécanisme d'équilibrage de force se trouvant entre la roue d'ancre (6) et la bague de tension (7) fixée de façon à pouvoir tourner autour de l'arbre de roue d'ancre (9) au moyen de la commande de bague de tension (8), caractérisé en ce que sur le côté, opposé à la roue d'ancré (6), de la bague de tension (7) est fixé un excentrique d'équilibre de force (20) sur la commande de bague de tension (8), qui définit un axe de rotation décalé parallèlement par rapport à l'axe de la roue d'ancre (9), et sur laquelle est fixé de façon rotative un disque d'équilibrage de force (21) présentant au moins deux points d'application (21a, 21b).
  2. Dispositif à force constante selon la revendication 1, caractérisé en ce que ledit ressort spiral (10) du dispositif à force constante est fixé sur une extrémité à une virole de ressort spiral (23) fixe, qui est fixée sur l'arbre de roue d'ancre (9) et présente une broche (24) sortant en direction du disque d'équilibrage de force (21), et est couplé sur l'autre extrémité à une virole de ressort spiral (22) mobile, qui est logée de façon rotative autour de la virole de ressort spiral (23) fixe et présente une broche (25) sortant en direction du disque d'équilibrage de force (21), les deux broches (24, 25) coopérant avec lesdits points d'application (21a, 21b) du disque d'équilibre de force (21) de telle sorte que les longueurs du bras de levier des forces exercées en ces points d'application à l'aide des broches (24, 25) s'appliquant ici varient en fonction de la position du disque d'équilibrage de force (21) tournant autour de l'excentrique d'équilibrage de force (20) de telle sorte que la réduction, provenant de la tension décroissante du ressort spiral (10), de la force exercée par la broche (25) de la virole de ressort spiral (22) mobile sur le disque d'équilibrage de force (21) est équilibrée en ce sens que le couple transmis par le disque d'équilibrage de force (21) au moyen de la broche (24) de la virole de ressort spiral (23) fixe sur la roue d'ancre (6) est constant dans toutes les positions par rapport à la bague de tension (7).
  3. Dispositif à force constante selon l'une quelconque des revendications précédentes, caractérisé en ce que la roue d'arrêt (12) est disposée de façon non concentrique par rapport à la roue d'ancre (6) transmettant le couple constant.
  4. Mécanisme à tourbillon, qui présente une cage de tourbillon (1), un balancier (2) et une roue des secondes fixe (14), caractérisé en ce qu'il présente un dispositif à force constante selon l'une quelconque des revendications précédentes.
  5. Mécanisme à tourbillon selon la revendication précédente, caractérisé en ce que la roue d'ancre (6) est placée de façon rotative sur le bord de la cage de tourbillon (1) et la commande de bague de tension (8) se trouve en prise avec la roue des secondes (14) fixe, en ce que la roue d'arrêt (12) est placée de façon non concentrique par rapport à la roue d'ancre (6), rotative sur le bord de la cage de tourbillon (1) et en ce que la commande de roue d'arrêt (12a) se trouve en prise avec la roue des secondes (14) fixe ou avec une seconde roue des secondes fixe, placée de façon concentrique par rapport à la première roue, et en ce que le balancier (2) commande les mouvements de la première ancre (4) du dispositif à force constante.
  6. Mécanisme à tourbillon selon la revendication 4 ou 5, caractérisé en ce que l'axe de rotation de la seconde ancre (11) est disposé au centre de la cage de tourbillon (1).
EP01129893A 2001-12-15 2001-12-15 Dispositif à force constante Expired - Lifetime EP1319997B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT01129893T ATE469378T1 (de) 2001-12-15 2001-12-15 Konstantkraftvorrichtung
DE50115494T DE50115494D1 (de) 2001-12-15 2001-12-15 Konstantkraftvorrichtung
EP01129893A EP1319997B1 (fr) 2001-12-15 2001-12-15 Dispositif à force constante
US10/304,849 US6863434B2 (en) 2001-12-15 2002-11-27 Constant-force device
CNB021563225A CN100356279C (zh) 2001-12-15 2002-12-13 恒力装置
JP2002364097A JP4105941B2 (ja) 2001-12-15 2002-12-16 定力装置
HK03105162.8A HK1052979B (zh) 2001-12-15 2003-07-17 恒力裝置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01129893A EP1319997B1 (fr) 2001-12-15 2001-12-15 Dispositif à force constante

Publications (2)

Publication Number Publication Date
EP1319997A1 EP1319997A1 (fr) 2003-06-18
EP1319997B1 true EP1319997B1 (fr) 2010-05-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129893A Expired - Lifetime EP1319997B1 (fr) 2001-12-15 2001-12-15 Dispositif à force constante

Country Status (7)

Country Link
US (1) US6863434B2 (fr)
EP (1) EP1319997B1 (fr)
JP (1) JP4105941B2 (fr)
CN (1) CN100356279C (fr)
AT (1) ATE469378T1 (fr)
DE (1) DE50115494D1 (fr)
HK (1) HK1052979B (fr)

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EP1103871A1 (fr) * 1999-09-02 2001-05-30 Creaholic S.A. Indicateur de temps à régulation mécanique
EP1445669A1 (fr) 2003-02-10 2004-08-11 Richemont International S.A. Echappement à force constante pour horloge avec secondes indirectes
EP1528443B1 (fr) * 2003-10-28 2008-08-06 Francois-Paul Journe Dispositif de force constante pour une montre
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EP1772783B1 (fr) 2005-10-10 2010-06-16 Montres Breguet S.A. Mouvement de montre comportant un dispositif à force constante
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DE102007042797B4 (de) * 2007-09-07 2010-04-08 Lange Uhren Gmbh Uhr
EP2166419B1 (fr) * 2008-09-18 2013-06-26 Agenhor SA Mouvement horloger comportant un dispositif à force constante
HK1146455A2 (en) 2010-03-12 2011-06-03 Microtechne Res & Dev Ct Ltd An oscillator system
CN102269967B (zh) * 2010-06-07 2013-02-13 天津海鸥表业集团有限公司 一种手表的恒力装置
EP2397921B1 (fr) 2010-06-17 2017-08-30 Blancpain S.A. Mécanisme d'avance par saut périodique d'une cage de carrousel
EP2397920A1 (fr) 2010-06-17 2011-12-21 Blancpain S.A. Mécanisme d'avance par saut périodique d'une cage de tourbillon ou d'une cage de carrousel
CH704764A2 (fr) * 2011-03-31 2012-10-15 Cartier Creation Studio Sa Mécanisme d'échappement notamment pour mouvement d'horlogerie.
EP2506092B1 (fr) * 2011-03-31 2020-01-08 Cartier International AG Mécanisme d'échappement notamment pour mouvement d'horlogerie
JP6057659B2 (ja) * 2012-10-18 2017-01-11 セイコーインスツル株式会社 時計用の定トルク機構及び該機構を備えたムーブメント及び機械式時計
EP2793087B1 (fr) * 2013-04-18 2016-06-01 Glashütter Uhrenbetrieb GmbH Tourbillon
JP6355102B2 (ja) * 2013-09-04 2018-07-11 セイコーインスツル株式会社 定力装置、ムーブメントおよび機械式時計
JP6143185B2 (ja) * 2013-09-04 2017-06-07 セイコーインスツル株式会社 動作安定機構、ムーブメントおよび機械式時計
EP2863272B1 (fr) * 2013-10-16 2020-11-25 Montres Breguet SA Mécanisme d'échappement pour mouvement de montre
US9568887B2 (en) * 2015-03-09 2017-02-14 Seiko Instruments Inc. Operation stabilizing mechanism, movement, and mechanical timepiece
JP6626701B2 (ja) * 2015-03-09 2019-12-25 セイコーインスツル株式会社 動作安定機構、ムーブメントおよび機械式時計
CN105366577A (zh) * 2015-10-23 2016-03-02 哈尔滨工业大学 弹簧凸轮扭杆式恒力机构
CN105276112A (zh) * 2015-10-23 2016-01-27 哈尔滨工业大学 一种平面低摩擦弹簧凸轮恒力机构
JP6951855B2 (ja) * 2017-03-30 2021-10-20 セイコーインスツル株式会社 トルク発生機構、定トルク機構、時計用ムーブメント及び時計
JP6566432B1 (ja) * 2018-06-07 2019-08-28 セイコーインスツル株式会社 定トルク機構、時計用ムーブメント及び時計
JP7485506B2 (ja) * 2018-10-12 2024-05-16 ロレックス・ソシエテ・アノニム 小型時計ムーブメント用の調速装置
JP6748318B1 (ja) * 2020-01-29 2020-08-26 セイコーウオッチ株式会社 脱進調速機、時計用ムーブメントおよび時計
EP3882712B1 (fr) * 2020-03-18 2022-11-16 The Swatch Group Research and Development Ltd Mouvement mécanique horloger muni d'un échappement comprenant une ancre déformable élastiquement
EP3910425A1 (fr) * 2020-05-13 2021-11-17 The Swatch Group Research and Development Ltd Mouvement horloger comprenant un echappement muni d'une roue dentee et d'un arretoir
CN115592876B (zh) * 2022-11-16 2023-05-02 苏州科伦特电源科技有限公司 一种层压流水线及使用方法

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Also Published As

Publication number Publication date
EP1319997A1 (fr) 2003-06-18
DE50115494D1 (de) 2010-07-08
ATE469378T1 (de) 2010-06-15
US6863434B2 (en) 2005-03-08
JP2003194963A (ja) 2003-07-09
HK1052979A1 (en) 2003-10-03
CN1427316A (zh) 2003-07-02
HK1052979B (zh) 2010-10-15
CN100356279C (zh) 2007-12-19
JP4105941B2 (ja) 2008-06-25
US20030112709A1 (en) 2003-06-19

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