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GB1343223A - Detent apparatus eg for use in an electronic timepiece - Google Patents

Detent apparatus eg for use in an electronic timepiece

Info

Publication number
GB1343223A
GB1343223A GB364372A GB364372A GB1343223A GB 1343223 A GB1343223 A GB 1343223A GB 364372 A GB364372 A GB 364372A GB 364372 A GB364372 A GB 364372A GB 1343223 A GB1343223 A GB 1343223A
Authority
GB
United Kingdom
Prior art keywords
jewel
wheel
pin
toothed wheel
movement
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
GB364372A
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1343223A publication Critical patent/GB1343223A/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
    • G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by primary clocks
    • G04C13/08—Secondary clocks actuated intermittently
    • G04C13/10—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms
    • G04C13/11—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

1343223 Electric motor SUWA SEIKOSHA KK 26 Jan 1972 [17 Feb 1971] 3643/72 Heading H2A [Also in Divisions G3 and F2] In a detent mechanism a "pallet jewel" 40 engaging a toothed wheel 15 prevents reverse rotation of the wheel, the jewel being carried at one end of a spring member 22 which urges the jewel into contact with the toothed wheel. The other end of the spring member is carried on a rotatable pin 43 mounted on a pivotable support member 25 pivoted about a pin 26 such that rotation of the pin 43 causes radial movement of the jewel with respect to the wheel, while movement of the support member about the pin 26 causes tangential movement of the jewel with respect to the wheel 15. The toothed wheel 15 is driven by engagement with a six pole stepping rotor mounted between stator members 12 and 13 the respective poles of which are determined by magnetization of stator 12 by a series of pulses, Fig. 2 (not shown), from a coil (not shown).
GB364372A 1971-02-17 1972-01-26 Detent apparatus eg for use in an electronic timepiece Expired GB1343223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP842871 1971-02-17

Publications (1)

Publication Number Publication Date
GB1343223A true GB1343223A (en) 1974-01-10

Family

ID=11692839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB364372A Expired GB1343223A (en) 1971-02-17 1972-01-26 Detent apparatus eg for use in an electronic timepiece

Country Status (5)

Country Link
US (1) US3783608A (en)
DE (1) DE2207467C3 (en)
FR (1) FR2125542B1 (en)
GB (1) GB1343223A (en)
HK (1) HK40176A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505806U (en) * 1973-05-15 1975-01-22
US3934404A (en) * 1973-11-17 1976-01-27 Kabushiki Kaisha Daini Seikosha Second hand regulating mechanism
FR2283474A1 (en) * 1974-06-12 1976-03-26 Jaz Sa IMPROVEMENT IN BALANCER-MOTOR WATCHMAKING MOVEMENTS
JPS606791Y2 (en) * 1975-05-14 1985-03-05 セイコー光機株式会社 Reversing prevention device for electric clocks
US4177630A (en) * 1977-10-25 1979-12-11 Bunker Ramo Corporation Sweep seconds to jump seconds conversion for clocks
FR2469743A1 (en) * 1979-11-16 1981-05-22 Suisse Horlogerie POSITIONING MECHANISM OF A CENTER WHEEL FOR A WATCHMAKING PART

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059500A (en) * 1959-09-12 1962-10-23 Ebauches Sa Pawl and ratchet device
US3129554A (en) * 1961-03-06 1964-04-21 Suwa Seikosha Kk Electric timekeeper
CH390799A (en) * 1963-07-16 1965-08-13 Omega Louis Brandt & Freres S Movement transmission mechanism
US3201932A (en) * 1964-07-10 1965-08-24 United States Time Corp Vibratory frequency standard for a timekeeping device
CH457295A (en) * 1965-07-29 1968-07-31 Centre Electron Horloger Device for transforming the oscillating movement of an electromechanical watch resonator
US3597915A (en) * 1968-11-05 1971-08-10 Susumu Aizawa Driving device of electronic watch
DE1809223B2 (en) * 1968-11-15 1972-11-30 Gebrüder Junghans GmbH, 7230 Schramberg WRISTWATCH WITH A PIEZOELECTRIC CRYSTAL AS A TIME HOLDING SWINGER
GB1287642A (en) * 1969-03-17 1972-09-06 Ebauches Sa Electric timepiece
CH392569A4 (en) * 1969-03-17 1970-12-15

Also Published As

Publication number Publication date
HK40176A (en) 1976-07-09
DE2207467B2 (en) 1980-01-10
DE2207467A1 (en) 1972-09-07
US3783608A (en) 1974-01-08
DE2207467C3 (en) 1984-07-05
FR2125542A1 (en) 1972-09-29
FR2125542B1 (en) 1977-04-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee