JPS5540930A - Electronic wrist watch - Google Patents

Electronic wrist watch

Info

Publication number
JPS5540930A
JPS5540930A JP11381978A JP11381978A JPS5540930A JP S5540930 A JPS5540930 A JP S5540930A JP 11381978 A JP11381978 A JP 11381978A JP 11381978 A JP11381978 A JP 11381978A JP S5540930 A JPS5540930 A JP S5540930A
Authority
JP
Japan
Prior art keywords
poles
magnet
step motor
large diameter
minimum time
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.)
Pending
Application number
JP11381978A
Other languages
Japanese (ja)
Inventor
Shigeru Kato
Yukio Kido
Hitoshi Tsutsui
Kazumitsu Kosaka
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP11381978A priority Critical patent/JPS5540930A/en
Publication of JPS5540930A publication Critical patent/JPS5540930A/en
Pending legal-status Critical Current

Links

Classifications

    • 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)

Abstract

PURPOSE:To reduce the number of components, to simplify the assembling work and to make thin the watches, by directly coupling the pointer corresponding to the minimum time unit to the shaft of the step motor and locating the magnet of large diameter along the inside surface of the watch case. CONSTITUTION:The magnet 40a of the step motor 25 is constituted as 60 poles alternately arranging N and S poles, and the stators 41a and 43a are located by 30 sets each corresponding to the poles. Further, the magnet 40a of large diameter is located along the internal surface of the watch case, and the wheel set such as gears 35, 35a is located to avoid the overlap of the both. Further, the minute pointer 34 corresponding to the minimum time unit is directly coupled to the motor shaft 33, and the minute unit is displayed by turning by 6 deg. on the circle every signal given by one miunte. Thus, the assembling work can be made easy even with 60 poles of step motor and the entire watch can be made thin.
JP11381978A 1978-09-16 1978-09-16 Electronic wrist watch Pending JPS5540930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11381978A JPS5540930A (en) 1978-09-16 1978-09-16 Electronic wrist watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11381978A JPS5540930A (en) 1978-09-16 1978-09-16 Electronic wrist watch

Publications (1)

Publication Number Publication Date
JPS5540930A true JPS5540930A (en) 1980-03-22

Family

ID=14621830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11381978A Pending JPS5540930A (en) 1978-09-16 1978-09-16 Electronic wrist watch

Country Status (1)

Country Link
JP (1) JPS5540930A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211908A (en) * 1975-07-18 1977-01-29 Mitsubishi Chem Ind Ltd Polyethylene telephutarate film
JPS60146885U (en) * 1984-03-12 1985-09-30 東北エプソン株式会社 Clock structure using plastic base plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211908A (en) * 1975-07-18 1977-01-29 Mitsubishi Chem Ind Ltd Polyethylene telephutarate film
JPS60146885U (en) * 1984-03-12 1985-09-30 東北エプソン株式会社 Clock structure using plastic base plate

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