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GB1345302A - Electromagnetically driven oscillator assembly for a timepiece - Google Patents

Electromagnetically driven oscillator assembly for a timepiece

Info

Publication number
GB1345302A
GB1345302A GB1665472A GB1665472A GB1345302A GB 1345302 A GB1345302 A GB 1345302A GB 1665472 A GB1665472 A GB 1665472A GB 1665472 A GB1665472 A GB 1665472A GB 1345302 A GB1345302 A GB 1345302A
Authority
GB
United Kingdom
Prior art keywords
coils
magnets
oscillator
electromagnetically driven
timepiece
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
Application number
GB1665472A
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
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of GB1345302A publication Critical patent/GB1345302A/en
Expired 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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/067—Driving circuits with distinct detecting and driving coils
    • 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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • 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
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1345302 Electric watches DAINI SEIKOSHA K K 11 April 1972 [12 April 1971] 16654/72 Heading G3T In an electromagnetically driven oscillator assembly for a timepiece including an oscillator with a plurality of spaced, permanent magnets, a plurality of fixed coils are provided adjacent corresponding magnets, the coils being connected in series to a maintaining circuit and each acting as both a detecting and a driving coil. Fig. 1 shows a balance comprising wheels 10, 11 fixed on a shaft 9 and carrying pairs of aligned magnets 12, 13 and 14, 15. The magnet pairs cooperate with coils 16, 17 which are connected in series to an astable multi-vibrator circuit 18 powered by a cell 19. Three or four coils may be provided, with a similar number of magnets on each wheel of the balance, Figs. 2 and 3, (not shown). The oscillator may alternatively be a tuning fork (40), Fig. 4, (not shown), or an H-shaped vibrator Figs. 5 and 6, (not shown).
GB1665472A 1971-04-12 1972-04-11 Electromagnetically driven oscillator assembly for a timepiece Expired GB1345302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2693071U JPS4725077U (en) 1971-04-12 1971-04-12

Publications (1)

Publication Number Publication Date
GB1345302A true GB1345302A (en) 1974-01-30

Family

ID=12206867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1665472A Expired GB1345302A (en) 1971-04-12 1972-04-11 Electromagnetically driven oscillator assembly for a timepiece

Country Status (4)

Country Link
JP (1) JPS4725077U (en)
DE (1) DE2217387A1 (en)
FR (1) FR2132851B1 (en)
GB (1) GB1345302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113960912A (en) * 2020-07-21 2022-01-21 斯沃奇集团研究和开发有限公司 Wearable objects including power devices provided with electromechanical converters, especially bracelets

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH382664A (en) * 1960-04-28 1964-06-15 Suisse Horlogerie Electromagnetic maintenance device for the oscillating movement of the regulating organ of a timepiece
FR1364753A (en) * 1963-05-16 1964-06-26 Bulova Watch Co Inc Electromagnetic clockwork movement
CH1385466A4 (en) * 1966-09-26 1969-07-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113960912A (en) * 2020-07-21 2022-01-21 斯沃奇集团研究和开发有限公司 Wearable objects including power devices provided with electromechanical converters, especially bracelets

Also Published As

Publication number Publication date
FR2132851A1 (en) 1972-11-24
DE2217387A1 (en) 1972-10-19
JPS4725077U (en) 1972-11-21
FR2132851B1 (en) 1975-03-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee