JPS54151070A - Step motor for crystal watches - Google Patents

Step motor for crystal watches

Info

Publication number
JPS54151070A
JPS54151070A JP8279378A JP8279378A JPS54151070A JP S54151070 A JPS54151070 A JP S54151070A JP 8279378 A JP8279378 A JP 8279378A JP 8279378 A JP8279378 A JP 8279378A JP S54151070 A JPS54151070 A JP S54151070A
Authority
JP
Japan
Prior art keywords
coils
stators
rotor
improvement
output torque
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
JP8279378A
Other languages
Japanese (ja)
Inventor
Masashi Yoshino
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP8279378A priority Critical patent/JPS54151070A/en
Publication of JPS54151070A publication Critical patent/JPS54151070A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by master-clocks
    • G04C13/08—Slave-clocks actuated intermittently
    • G04C13/10—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms
    • G04C13/11—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To achieve the improvement in the energy conversion efficiency of a step motor and achiev the improvement in space efficiency by electromagnetically serially constituting two coils which are disposed nearly parallel. CONSTITUTION:Stators 21, 22 which are coupled to magnetic cores 17, 18 have semicircular end faces 21a, 22a so as to oppose to a rotor 16. The driving pulse currents applied from the circuit including a time standard source are flowed alternately from O1 to O2 and from O2 to O1 to the coils 19, 20 wound on the magnetic cores 17, 18 to excite the coils, whereby the magnetic path of the stators 21, 22 and rotor 16 is formed. Then, the coil winding length is doubled as compared to that of ordinary ones and this enables the longer coils to be constituted with smaller coil winding diameters, making possible the motor of higher output torque and lower current consumption. When the plane space and output torque are made the same, the thickness becomes half that.
JP8279378A 1978-07-07 1978-07-07 Step motor for crystal watches Pending JPS54151070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8279378A JPS54151070A (en) 1978-07-07 1978-07-07 Step motor for crystal watches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8279378A JPS54151070A (en) 1978-07-07 1978-07-07 Step motor for crystal watches

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP5939678A Division JPS54151073A (en) 1978-05-18 1978-05-18 Step motor for crystal watches

Publications (1)

Publication Number Publication Date
JPS54151070A true JPS54151070A (en) 1979-11-27

Family

ID=13784273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8279378A Pending JPS54151070A (en) 1978-07-07 1978-07-07 Step motor for crystal watches

Country Status (1)

Country Link
JP (1) JPS54151070A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56130197U (en) * 1980-03-05 1981-10-02
JPS594365U (en) * 1982-07-01 1984-01-12 富士重工業株式会社 car alarm system
WO2001016655A1 (en) * 1999-08-26 2001-03-08 Seiko Epson Corporation Timepiece device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56130197U (en) * 1980-03-05 1981-10-02
JPS594365U (en) * 1982-07-01 1984-01-12 富士重工業株式会社 car alarm system
WO2001016655A1 (en) * 1999-08-26 2001-03-08 Seiko Epson Corporation Timepiece device
US6973010B1 (en) 1999-08-26 2005-12-06 Seiko Epson Corporation Timepiece device

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