CA1303366C - Train wheel structure of electronic timepiece - Google Patents

Train wheel structure of electronic timepiece

Info

Publication number
CA1303366C
CA1303366C CA000584661A CA584661A CA1303366C CA 1303366 C CA1303366 C CA 1303366C CA 000584661 A CA000584661 A CA 000584661A CA 584661 A CA584661 A CA 584661A CA 1303366 C CA1303366 C CA 1303366C
Authority
CA
Canada
Prior art keywords
hand
hand wheel
wheel
bottom plate
rotor
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
CA000584661A
Other languages
English (en)
French (fr)
Inventor
Mamoru Sato
Mamoru Watanabe
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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=16144487&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA1303366(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Application granted granted Critical
Publication of CA1303366C publication Critical patent/CA1303366C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • 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
    • 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
    • G04C3/008—Mounting, assembling of components
    • 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
    • G04C3/146—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor incorporating two or more stepping motors or rotors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
CA000584661A 1987-12-02 1988-12-01 Train wheel structure of electronic timepiece Expired - Fee Related CA1303366C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPU62-183941 1987-12-02
JP1987183941U JPH0187288U (enExample) 1987-12-02 1987-12-02

Publications (1)

Publication Number Publication Date
CA1303366C true CA1303366C (en) 1992-06-16

Family

ID=16144487

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000584661A Expired - Fee Related CA1303366C (en) 1987-12-02 1988-12-01 Train wheel structure of electronic timepiece

Country Status (5)

Country Link
US (1) US4907210A (enExample)
EP (1) EP0319304B2 (enExample)
JP (1) JPH0187288U (enExample)
CA (1) CA1303366C (enExample)
DE (1) DE3872187T2 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2646946B2 (ja) * 1992-12-02 1997-08-27 セイコーエプソン株式会社 時 計
US6804172B2 (en) * 2002-03-07 2004-10-12 Seiko Instruments Inc. Analog electronic timepiece including plural indicator wheels

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7110518U (de) * 1971-03-19 1971-06-09 Hettich H Anordnung zur lagerung der sekundenwelle bei wand- und tischuhren
JPS533261Y2 (enExample) * 1974-07-12 1978-01-27
JPS55948Y2 (enExample) * 1975-07-14 1980-01-11
CH625382B (de) * 1978-12-08 Bulova Watch Co Inc Zeigeruhr, insbesondere armbanduhr.
CH632382B (fr) * 1980-04-25 Ebauchesfabrik Eta Ag Mouvement de montre electronique a affichage analogique.
JPS582776A (ja) * 1981-06-30 1983-01-08 Citizen Watch Co Ltd 指針式時差修正時計
CH648984GA3 (enExample) * 1983-05-05 1985-04-30
CH653846GA3 (enExample) * 1983-12-06 1986-01-31
DE3534204A1 (de) * 1984-09-26 1986-04-10 Citizen Watch Co., Ltd., Tokio/Tokyo Elektronische uhr mit stoppeinrichtung
CH661835GA3 (enExample) * 1985-09-11 1987-08-31
CH661403GA3 (enExample) * 1985-10-02 1987-07-31

Also Published As

Publication number Publication date
EP0319304B1 (en) 1992-06-17
DE3872187T2 (de) 1996-09-19
EP0319304A2 (en) 1989-06-07
JPH0187288U (enExample) 1989-06-08
EP0319304B2 (en) 1996-07-03
EP0319304A3 (en) 1989-07-19
US4907210A (en) 1990-03-06
DE3872187D1 (de) 1992-07-23

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Legal Events

Date Code Title Description
MKLA Lapsed