JPS5520461A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5520461A
JPS5520461A JP9374678A JP9374678A JPS5520461A JP S5520461 A JPS5520461 A JP S5520461A JP 9374678 A JP9374678 A JP 9374678A JP 9374678 A JP9374678 A JP 9374678A JP S5520461 A JPS5520461 A JP S5520461A
Authority
JP
Japan
Prior art keywords
rotor
driving cam
teeth
permanent magnet
tooth
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
JP9374678A
Other languages
Japanese (ja)
Inventor
Tokukado Ogawa
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 JP9374678A priority Critical patent/JPS5520461A/en
Publication of JPS5520461A publication Critical patent/JPS5520461A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE:To reduce power consumption and make it possible to obtain a high- reliability sweep needle handling by causing the rotor in the electronic wrist watch, which has a converter and a reverse deadvancing mechanism, to reciprocate. CONSTITUTION:Rotor 3 is constituted by a cylindrical permanent magnet and driving cam 14. Driving cam 14 has three teeth and is not unbalanced. In rotor 3, the magnetic pole of the permanent magnet reciprocated by inversional pulses and the position of teeth of the driving cam are relative to each other. Tooth 14a is a feeding tooth and rotates slave moving wheels 11 and 12. Teeth 14b and 14c are longer than tooth 14a; and when the amplitude of rotor 3 becomes large, they strike teeth of slave moving wheels 11 and 12, and the amplitude is limited, and rotor 3 is not rotated. Driving cam 14 and slave moving wheels 11 and 12 are coated with silicon carbide, and the permanent magnet has a high magnetic energy because of a cylindrical form, and the driving cam has a small inertia because of small size, and the energy applied to coil 2 is stored in the energy of rotor 3, so that operation is efficient and power consumption can be reduced.
JP9374678A 1978-08-01 1978-08-01 Electronic watch Pending JPS5520461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9374678A JPS5520461A (en) 1978-08-01 1978-08-01 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9374678A JPS5520461A (en) 1978-08-01 1978-08-01 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5520461A true JPS5520461A (en) 1980-02-13

Family

ID=14090979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9374678A Pending JPS5520461A (en) 1978-08-01 1978-08-01 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5520461A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012032993A1 (en) * 2010-09-09 2012-03-15 シチズンホールディングス株式会社 Oscillating stepping motor
JP2014163738A (en) * 2013-02-22 2014-09-08 Citizen Holdings Co Ltd Positioning mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012032993A1 (en) * 2010-09-09 2012-03-15 シチズンホールディングス株式会社 Oscillating stepping motor
CN103109242A (en) * 2010-09-09 2013-05-15 西铁城控股株式会社 Oscillating stepping motor
JP5819304B2 (en) * 2010-09-09 2015-11-24 シチズンホールディングス株式会社 Swing type step motor
US9529330B2 (en) 2010-09-09 2016-12-27 Citizen Holdings Co., Ltd. Wrist watch oscillating step motor with sweep motion
JP2014163738A (en) * 2013-02-22 2014-09-08 Citizen Holdings Co Ltd Positioning mechanism

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