EP0482443B1 - Dispositif de freinage d'une roue d'un engrenage - Google Patents

Dispositif de freinage d'une roue d'un engrenage Download PDF

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Publication number
EP0482443B1
EP0482443B1 EP91117333A EP91117333A EP0482443B1 EP 0482443 B1 EP0482443 B1 EP 0482443B1 EP 91117333 A EP91117333 A EP 91117333A EP 91117333 A EP91117333 A EP 91117333A EP 0482443 B1 EP0482443 B1 EP 0482443B1
Authority
EP
European Patent Office
Prior art keywords
wheel
braking device
toothed wheel
forming element
brake
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
EP91117333A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0482443A1 (fr
Inventor
Cyril Vuilleumier
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0482443A1 publication Critical patent/EP0482443A1/fr
Application granted granted Critical
Publication of EP0482443B1 publication Critical patent/EP0482443B1/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
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears
    • 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
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • G04B11/003—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power with friction member, e.g. with spring action
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0833—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting perpendicular to the plane of the movement

Definitions

  • the present invention relates to a device for braking a wheel of a gear.
  • this type of friction device can only be used if the wheel to be braked is located directly above the bridge, and provided that there is sufficient space between this wheel and the bridge to place it these measures. Sometimes, the wheel to be braked is itself placed on top of one or more other gear wheels. It is then impossible to use the device mentioned above.
  • Braking devices which use magnetism.
  • a magnet generally made of platinum-cobalt is fixed, for example, in the bridge placed above the wheel to be braked. Under the action of this magnet, the wheel is attracted towards this bridge and its axis rubs on the bearing located in this bridge, which has the effect of braking the wheel.
  • the subject of the present invention is a device for braking a wheel of a gear comprising at least two mobiles, a first mobile comprising a toothed wheel pivoting about an axis and meshing with a second mobile comprising a second gear wheel pivoting about a second axis, parallel to said first axis.
  • This braking device comprises an elastic element forming a brake which is arranged coaxially with the first mobile.
  • the friction surface 39 is continuous, in order to ensure regular friction, it could possibly be discontinuous.
  • the brake element 1 has, in the free state, the shape of a washer curved along one of its diametrical axes here, the DD axis.
  • This washer is made of an elastic material, preferably of brass for cost reasons, but it could also be made of another elastic material. Its concavity is turned towards the clutch wheel 3. On the other hand, when it is in place, this washer is placed under stress between the ring 29 and the wheel 3, by being arbouted by its peripheral friction surface 39 on the surface of the wheel 7. Thus, regular friction is obtained and therefore good braking of the chronograph wheel 7.
  • FIG. 4 shows another embodiment of the invention.
  • the braking device is described in its application to a chronograph mechanism, in which the ring 29 plays both, the role of the clutch ring and of the member holding the brake element in place.
  • the invention is not limited to this particular application.
  • it can be used advantageously in all cases where in a gear (of a simple watch, for example), it is desirable to apply a braking force to one of the wheels in order to compensate for the frolicking of gear.
  • the brake forming element will be simply mounted around the axis of one of the wheels while being held against the latter by a simple fixing ring.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Braking Arrangements (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)
EP91117333A 1990-10-22 1991-10-11 Dispositif de freinage d'une roue d'un engrenage Expired - Lifetime EP0482443B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3363/90A CH679823B5 (enrdf_load_stackoverflow) 1990-10-22 1990-10-22
CH3363/90 1990-10-22

Publications (2)

Publication Number Publication Date
EP0482443A1 EP0482443A1 (fr) 1992-04-29
EP0482443B1 true EP0482443B1 (fr) 1994-07-13

Family

ID=4254360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117333A Expired - Lifetime EP0482443B1 (fr) 1990-10-22 1991-10-11 Dispositif de freinage d'une roue d'un engrenage

Country Status (5)

Country Link
US (1) US5253231A (enrdf_load_stackoverflow)
EP (1) EP0482443B1 (enrdf_load_stackoverflow)
JP (1) JP3105595B2 (enrdf_load_stackoverflow)
CH (1) CH679823B5 (enrdf_load_stackoverflow)
DE (1) DE69102854T2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3158401B1 (fr) * 2014-06-19 2023-08-30 Rolex S.A. Dispositif horloger de transmission

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2995675B2 (ja) * 1996-10-11 1999-12-27 セイコーインスツルメンツ株式会社 アラーム付き電子時計
JP4658547B2 (ja) * 2004-09-13 2011-03-23 シチズンホールディングス株式会社 クロノグラフ機能付電子時計
US7597471B2 (en) * 2005-11-24 2009-10-06 Vaucher Manufacture Fleurier S.A. Time piece chronograph clockwork movement
EP2053474B1 (fr) * 2007-10-22 2012-12-12 Omega SA Montre chronographe
CH704775A2 (fr) * 2011-04-08 2012-10-15 Richemont Int Sa Mécanisme de chronographe.
JP6011993B2 (ja) * 2012-04-18 2016-10-25 カシオ計算機株式会社 情報表示装置および電子時計
KR101359959B1 (ko) * 2012-05-10 2014-02-12 전자부품연구원 치형 브레이크를 갖는 브레이크 장치 및 그를 이용한 모터 조립체
KR101293497B1 (ko) * 2012-05-10 2013-08-07 전자부품연구원 1축 관절 모듈
EP2860591B1 (fr) * 2013-10-09 2025-07-16 Nivarox-FAR S.A. Système d'assemblage utilisant un élément de blocage élastique conique
EP3709104B1 (fr) 2019-03-01 2024-05-15 Rolex Sa Engrenage horloger
CH720479A1 (fr) * 2023-02-06 2024-08-15 Richemont Int Sa Dispositif d'embrayage vertical, mécanisme de chronographe, mouvement horloger et pièce d'horlogerie

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1344794A (fr) * 1963-01-22 1963-11-29 Dispositif notamment pour chronographe, ainsi que les chronographes munis de ce dispositif ou dispositif similaire
DE6805821U (de) * 1968-11-07 1969-03-20 Diehl Nuernberg Fa Zeitschaltuhr zur zeitlichen steuerung der funktionen von geraeten, insbesondere kochherden.
JPS4728696Y1 (enrdf_load_stackoverflow) * 1969-02-12 1972-08-29
GB1341597A (en) * 1970-06-09 1973-12-25 Suwa Seikosha Kk Timepiece mechanism
DE8436089U1 (de) * 1984-12-10 1985-03-07 Pforzheimer Uhren-Rohwerke Porta GmbH, 7530 Pforzheim Friktionsverbindung
CH661403GA3 (enrdf_load_stackoverflow) * 1985-10-02 1987-07-31
US4794576A (en) * 1988-01-29 1988-12-27 Timex Corporation Combination electrical contact member and braking member for a timepiece
JP5710391B2 (ja) 2011-06-09 2015-04-30 株式会社日立製作所 工作機械の加工異常検知装置及び加工異常検知方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3158401B1 (fr) * 2014-06-19 2023-08-30 Rolex S.A. Dispositif horloger de transmission

Also Published As

Publication number Publication date
DE69102854T2 (de) 1995-02-23
JPH05157857A (ja) 1993-06-25
CH679823B5 (enrdf_load_stackoverflow) 1992-10-30
JP3105595B2 (ja) 2000-11-06
EP0482443A1 (fr) 1992-04-29
US5253231A (en) 1993-10-12
DE69102854D1 (de) 1994-08-18
CH679823GA3 (enrdf_load_stackoverflow) 1992-04-30

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