CH617815GA3 - - Google Patents

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Publication number
CH617815GA3
CH617815GA3 CH926478A CH926478A CH617815GA3 CH 617815G A3 CH617815G A3 CH 617815GA3 CH 926478 A CH926478 A CH 926478A CH 926478 A CH926478 A CH 926478A CH 617815G A3 CH617815G A3 CH 617815GA3
Authority
CH
Switzerland
Prior art keywords
hour
gear
cannon
jumps
acts
Prior art date
Application number
CH926478A
Other versions
CH617815B (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 CH617815B publication Critical patent/CH617815B/fr
Application filed filed Critical
Priority to CH926478A priority Critical patent/CH617815GA3/xx
Priority to US06/070,054 priority patent/US4259735A/en
Priority to DE7979200475T priority patent/DE2963613D1/en
Priority to EP79200475A priority patent/EP0008832B1/en
Priority to JP11162079A priority patent/JPS5537996A/en
Publication of CH617815GA3 publication Critical patent/CH617815GA3/xx

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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values
    • 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
    • G04B13/007—Gearwork with differential work
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/221—Arrangements for indicating different local apparent times; Universal time pieces mechanisms for correcting the hours hand only, i.e. independently for minutes and seconds hands

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Gears, Cams (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

In a timepiece movement, more particularly a quartz wrist watch movement, having a low-torque stepping motor, there is provided a differential mechanism which drives the hands and makes it possible to move the hour-hand alone in jumps. A cannon-pinion having a toothing acts as a sun gear. A planet gear is mounted on an hour-wheel which acts as a planet carrier. A ring gear takes the form of an annulus having internal teeth which is normally stationary but is controlled by a stem and can be rotated by jumps to cause the planet gear to roll along the cannon-pinion toothing, thus causing the planet carrier and consequently the hour hand to jump.
CH926478A 1978-09-04 1978-09-04 CH617815GA3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH926478A CH617815GA3 (en) 1978-09-04 1978-09-04
US06/070,054 US4259735A (en) 1978-09-04 1979-08-27 Timepiece movement with differential gear mechanism
DE7979200475T DE2963613D1 (en) 1978-09-04 1979-08-30 Clockwork with hands comprising a differential-gear mechanism
EP79200475A EP0008832B1 (en) 1978-09-04 1979-08-30 Clockwork with hands comprising a differential-gear mechanism
JP11162079A JPS5537996A (en) 1978-09-04 1979-08-31 Clock movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH926478A CH617815GA3 (en) 1978-09-04 1978-09-04

Publications (2)

Publication Number Publication Date
CH617815B CH617815B (en)
CH617815GA3 true CH617815GA3 (en) 1980-06-30

Family

ID=4350106

Family Applications (1)

Application Number Title Priority Date Filing Date
CH926478A CH617815GA3 (en) 1978-09-04 1978-09-04

Country Status (5)

Country Link
US (1) US4259735A (en)
EP (1) EP0008832B1 (en)
JP (1) JPS5537996A (en)
CH (1) CH617815GA3 (en)
DE (1) DE2963613D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074897A1 (en) * 1999-08-04 2001-02-07 Frédéric Piguet S.A. Device for displaying the power-reserve of a timepiece

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS618396Y2 (en) * 1980-06-06 1986-03-14
US4415272A (en) * 1980-10-30 1983-11-15 Kieninger & Obergfell Fabrik Fur Technische Laufwerke Und Apparate Electrical timepiece with hour-hand adjustment
CH649189GA3 (en) * 1981-12-28 1985-05-15
US4443112A (en) * 1982-09-29 1984-04-17 Timex Corporation Planetary gear for date mechanism in a wristwatch
CH674290GA3 (en) * 1988-06-17 1990-05-31 Watch face time zone areas display - displays place where particular time zone is operative, with time zone area actuated by wearer
CH681128B5 (en) * 1990-10-02 1993-07-30 Ebauchesfabrik Eta Ag
US5155712A (en) * 1992-04-20 1992-10-13 Timex Corporation Wheel and pinion assembly with friction drive/slip coupling for a timepiece
CH689710B5 (en) * 1994-01-26 2000-03-15 Erard Raoul Henri Watch including an indicator element complementary to the time display.
SG96702A1 (en) * 2001-11-13 2003-06-16 Glashuetter Uhrenbetrieb Gmbh Device for winding and setting the time of a timepiece such as a date-watch including a date disc
FR2867285B1 (en) * 2004-03-03 2009-07-31 Benoit Espiau WATCH
EP2252918B1 (en) * 2008-03-11 2011-10-05 Parmigiani Fleurier S.A. Coaxial horological movement
FR2973125B1 (en) * 2011-03-23 2013-05-10 Samep Montres Emile Pequignet SUPPORT FOR MOVING WATCH DISPLAY MEMORY
EP2615506B1 (en) 2012-01-10 2014-06-25 Montres Breguet SA Device for rapid correction of a display system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1673621B2 (en) * 1967-08-14 1971-12-16 Burg, Fred G., Los Angeles, Calif. (V.StA.) DEVICE FOR THE OPTIONAL SETTING OF THE HOUR HAND OF A CLOCK TO THE TIME OF A SPECIFIC TIME ZONE
CH494997A (en) * 1967-11-03 1970-04-30 Centre Electron Horloger Time-setting mechanism
US3503203A (en) * 1967-11-14 1970-03-31 Bulova Watch Co Inc Two-zone timepiece
DE1933049B2 (en) * 1969-06-30 1971-09-30 Durowe Gmbh, 7530 Pforzheim WORLD TIME CLOCK
CH765671A4 (en) * 1971-05-26 1972-12-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074897A1 (en) * 1999-08-04 2001-02-07 Frédéric Piguet S.A. Device for displaying the power-reserve of a timepiece
US6685352B1 (en) 1999-08-04 2004-02-03 Frederic Piguet S.A. Timepiece power reserve indicator device

Also Published As

Publication number Publication date
CH617815B (en)
EP0008832A2 (en) 1980-03-19
JPS5537996A (en) 1980-03-17
EP0008832A3 (en) 1980-04-02
EP0008832B1 (en) 1982-09-01
DE2963613D1 (en) 1982-10-28
US4259735A (en) 1981-03-31

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