DE3880603D1 - TWO-MOTOR WHEEL PLANT, ESPECIALLY FOR A RADIO WATCH. - Google Patents

TWO-MOTOR WHEEL PLANT, ESPECIALLY FOR A RADIO WATCH.

Info

Publication number
DE3880603D1
DE3880603D1 DE8888115449T DE3880603T DE3880603D1 DE 3880603 D1 DE3880603 D1 DE 3880603D1 DE 8888115449 T DE8888115449 T DE 8888115449T DE 3880603 T DE3880603 T DE 3880603T DE 3880603 D1 DE3880603 D1 DE 3880603D1
Authority
DE
Germany
Prior art keywords
seconds
motor wheel
minutes
hours
driving
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 - Fee Related
Application number
DE8888115449T
Other languages
German (de)
Inventor
Wolfgang Ganter
Juergen Allgaier
Wolfram Hodapp
Arthur Kopf
Roland Maurer
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.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6812342&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3880603(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Priority to DE8888115449T priority Critical patent/DE3880603D1/en
Application granted granted Critical
Publication of DE3880603D1 publication Critical patent/DE3880603D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The clock mechanism has an electronic motor (15) for driving the seconds and minutes wheels (18,20) and a second electric stepping motor (24) for driving the hours wheel (21), to allow separation correction of the indicated hours without altering the momentary position of the seconds and minutes hands. A reflection light barrier (28) cooperates with the hours wheel (21) to detect its actual position, with a second light barrier cooperating with both the seconds and minutes wheels (18,20). The operation of both motors (15,24) and both light barriers (28,33) are synchronised.
DE8888115449T 1987-09-23 1988-09-21 TWO-MOTOR WHEEL PLANT, ESPECIALLY FOR A RADIO WATCH. Expired - Fee Related DE3880603D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888115449T DE3880603D1 (en) 1987-09-23 1988-09-21 TWO-MOTOR WHEEL PLANT, ESPECIALLY FOR A RADIO WATCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8712809U DE8712809U1 (en) 1987-09-23 1987-09-23 Two-motor gear train, especially for a radio-controlled clock
DE8888115449T DE3880603D1 (en) 1987-09-23 1988-09-21 TWO-MOTOR WHEEL PLANT, ESPECIALLY FOR A RADIO WATCH.

Publications (1)

Publication Number Publication Date
DE3880603D1 true DE3880603D1 (en) 1993-06-03

Family

ID=6812342

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8712809U Expired DE8712809U1 (en) 1987-09-23 1987-09-23 Two-motor gear train, especially for a radio-controlled clock
DE8888115449T Expired - Fee Related DE3880603D1 (en) 1987-09-23 1988-09-21 TWO-MOTOR WHEEL PLANT, ESPECIALLY FOR A RADIO WATCH.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8712809U Expired DE8712809U1 (en) 1987-09-23 1987-09-23 Two-motor gear train, especially for a radio-controlled clock

Country Status (2)

Country Link
EP (1) EP0308879B2 (en)
DE (2) DE8712809U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD277540A1 (en) * 1988-11-30 1990-04-04 Ruhla Uhren Veb K WHEELS FACTORY
US5363348A (en) * 1992-09-04 1994-11-08 Damle Madhav N High resolution, remotely resettable time clock
JP3328518B2 (en) * 1996-11-06 2002-09-24 セイコークロック株式会社 Clock mechanical body
GB2352061B (en) * 1996-11-06 2001-03-28 Seiko Clock Inc Timepiece movement
EP1357448A1 (en) * 2002-04-26 2003-10-29 Kienzle Time (Hong Kong) Limited Radio controllable clock
US20040125702A1 (en) * 2002-10-21 2004-07-01 Hideki Kitajima Rotational position detection device, hand position detection device and clock using the hand position detection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH646301GA3 (en) * 1981-12-23 1984-11-30
DE3510861C2 (en) * 1984-11-09 1986-09-25 Gebrüder Junghans GmbH, 7230 Schramberg Display position detection device for a clock, in particular a radio clock
DE3513961A1 (en) * 1985-04-18 1986-10-23 Forschungsgesellschaft für Feingeräte-, Mikro- und Uhrentechnik e.V., 7000 Stuttgart Device for detecting the state of the motion in an electronic clock, in particular a radio-controlled clock

Also Published As

Publication number Publication date
EP0308879A2 (en) 1989-03-29
DE8712809U1 (en) 1987-11-05
EP0308879B2 (en) 1996-05-08
EP0308879B1 (en) 1993-04-28
EP0308879A3 (en) 1991-03-27

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee