GB1293313A - A timebase mechanical vibrator - Google Patents

A timebase mechanical vibrator

Info

Publication number
GB1293313A
GB1293313A GB25662/71A GB2566271A GB1293313A GB 1293313 A GB1293313 A GB 1293313A GB 25662/71 A GB25662/71 A GB 25662/71A GB 2566271 A GB2566271 A GB 2566271A GB 1293313 A GB1293313 A GB 1293313A
Authority
GB
United Kingdom
Prior art keywords
timebase
magnet
mechanical vibrator
march
central arm
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
GB25662/71A
Inventor
Toshikazu Hatsuse
Hiromi Ueda
Shouiti Ozawa
Yuh Yasuda
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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
Priority claimed from JP2984670U external-priority patent/JPS499096Y1/ja
Priority claimed from JP3079570U external-priority patent/JPS499097Y1/ja
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of GB1293313A publication Critical patent/GB1293313A/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
    • G04C3/08—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
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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
    • G04C3/101—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 constructional details
    • G04C3/104—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 constructional details of the pawl or the ratched-wheel
    • G04C3/105—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 constructional details of the pawl or the ratched-wheel pawl and ratched-wheel being magnetically coupled

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1293313 Clocks and watches CITIZEN WATCH Co Ltd 19 April 1971 [28 March 1970 31 March 1970 25 Dec 1970] 25662/71 Heading G3T A timebase mechanical vibrator has three parallel oscillatory arms 10b, 10b<SP>1</SP> and 10c, the ratio of the width of each of the outer arms to that of the central arm being n:2 where n is a positive integer larger than unity. The outer arms respectively carry the sensing magnet 17 and the drive magnet 18, associated with the coils 20,21 connected in the transistor circuit 23. The central arm 10c carries at its free end an indexing magnet 19 which co-operates with a magnetic wheel 22 having teeth 22a and apertures 22b, the wheel being the drive for the conventional time-piece gear train.
GB25662/71A 1970-03-28 1971-04-19 A timebase mechanical vibrator Expired GB1293313A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2984670U JPS499096Y1 (en) 1970-03-28 1970-03-28
JP3079570U JPS499097Y1 (en) 1970-03-31 1970-03-31
JP12531570 1970-12-25

Publications (1)

Publication Number Publication Date
GB1293313A true GB1293313A (en) 1972-10-18

Family

ID=27286736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25662/71A Expired GB1293313A (en) 1970-03-28 1971-04-19 A timebase mechanical vibrator

Country Status (3)

Country Link
US (1) US3699412A (en)
DE (1) DE2115885B2 (en)
GB (1) GB1293313A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3787178A1 (en) * 2019-08-30 2021-03-03 Miniswys Sa Piezoelectric drive unit
EP3812842B1 (en) * 2019-10-24 2023-11-29 The Swatch Group Research and Development Ltd Device for guiding the pivoting of a pivoting mass and timepiece resonator mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690646A (en) * 1948-06-10 1954-10-05 Clifford Cecil Frank Escapement mechanism
US3462939A (en) * 1965-02-12 1969-08-26 Tokei Kk Mechanical vibrator for timepiece

Also Published As

Publication number Publication date
DE2115885A1 (en) 1971-10-14
US3699412A (en) 1972-10-17
DE2115885B2 (en) 1976-11-18

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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