CH637259GA3 - - Google Patents

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Publication number
CH637259GA3
CH637259GA3 CH600979A CH600979A CH637259GA3 CH 637259G A3 CH637259G A3 CH 637259GA3 CH 600979 A CH600979 A CH 600979A CH 600979 A CH600979 A CH 600979A CH 637259G A3 CH637259G A3 CH 637259GA3
Authority
CH
Switzerland
Prior art keywords
driving wheel
date
calendar
control member
date driving
Prior art date
Application number
CH600979A
Other languages
French (fr)
Other versions
CH637259B (en
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
Publication of CH637259B publication Critical patent/CH637259B/en
Application filed filed Critical
Publication of CH637259GA3 publication Critical patent/CH637259GA3/fr

Links

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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Vending Machines For Individual Products (AREA)
  • Eye Examination Apparatus (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The date driving mechanism of a watch comprises a date driving wheel having a partially teethed portion engaged with teeth of a calendar driving wheel which in turn drives a calendar display dial so as to advance the calendar display dial a given amount each rotation of the date driving wheel. A cam integral with the date driving wheel engages a pivotal control member so as to hold the control member against the calendar driving wheel normally to restrain movement of the date dial. The cam has a flat side so as to release the calendar driving wheel from restraint when being driven by the teethed portion of the date driving wheel, thereby relieving load on the date driving wheel. The control member has a resilient arm which yields to permit manual correction of the calendar display.
CH600979A 1978-06-27 1979-06-27 DEVICE FOR SWITCHING A CALENDAR INDICATOR BODY IN A WATCH MOVEMENT. CH637259B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7760378A JPS554552A (en) 1978-06-27 1978-06-27 Date feed mechanism of watch

Publications (2)

Publication Number Publication Date
CH637259B CH637259B (en)
CH637259GA3 true CH637259GA3 (en) 1983-07-29

Family

ID=13638506

Family Applications (1)

Application Number Title Priority Date Filing Date
CH600979A CH637259B (en) 1978-06-27 1979-06-27 DEVICE FOR SWITCHING A CALENDAR INDICATOR BODY IN A WATCH MOVEMENT.

Country Status (4)

Country Link
US (1) US4261047A (en)
JP (1) JPS554552A (en)
CH (1) CH637259B (en)
GB (1) GB2026213B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH648176GA3 (en) * 1981-11-05 1985-03-15
EP0129683A1 (en) * 1983-05-31 1985-01-02 Compagnie des Montres Longines, Francillon S.A. Date indicating mechanism for watches
JP2831274B2 (en) * 1994-06-08 1998-12-02 日本ミクロコーティング株式会社 Polishing sheet and method for producing the same
JP5100523B2 (en) * 2008-06-16 2012-12-19 セイコーインスツル株式会社 DAY DISPLAY DEVICE AND CLOCK HAVING THE SAME
EP2180383B1 (en) * 2008-10-24 2012-01-25 ETA SA Manufacture Horlogère Suisse Device to assist in maintaining the position of a date disc for a timepiece
JP6011993B2 (en) * 2012-04-18 2016-10-25 カシオ計算機株式会社 Information display device and electronic timepiece
EP2927756A1 (en) * 2014-04-03 2015-10-07 ETA SA Manufacture Horlogère Suisse Clock movement provided with a drive mechanism for an analogue indicator with periodic or intermittent movement
EP3489766B1 (en) * 2017-11-27 2025-11-05 Montres Breguet S.A. Mechanism for correcting a function of a timepiece movement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH525507A (en) * 1969-11-03 1971-08-13 Tissot Horlogerie Drive mechanism for a date indicator in a timepiece
CH591720B5 (en) * 1975-03-18 1977-09-30 Ebauches Sa

Also Published As

Publication number Publication date
JPS554552A (en) 1980-01-14
GB2026213A (en) 1980-01-30
US4261047A (en) 1981-04-07
CH637259B (en)
GB2026213B (en) 1982-08-25

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Legal Events

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PL Patent ceased