JPS5498912A - Motor for electronic watch - Google Patents

Motor for electronic watch

Info

Publication number
JPS5498912A
JPS5498912A JP15371777A JP15371777A JPS5498912A JP S5498912 A JPS5498912 A JP S5498912A JP 15371777 A JP15371777 A JP 15371777A JP 15371777 A JP15371777 A JP 15371777A JP S5498912 A JPS5498912 A JP S5498912A
Authority
JP
Japan
Prior art keywords
rotor
bearing
recessed part
facing
thrust
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.)
Granted
Application number
JP15371777A
Other languages
Japanese (ja)
Other versions
JPS6059829B2 (en
Inventor
Yasuaki Nakayama
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
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP15371777A priority Critical patent/JPS6059829B2/en
Priority to US05/954,501 priority patent/US4243329A/en
Priority to GB7842210A priority patent/GB2009466B/en
Priority to DE2847333A priority patent/DE2847333C2/en
Priority to CH1127078A priority patent/CH638363B/en
Publication of JPS5498912A publication Critical patent/JPS5498912A/en
Publication of JPS6059829B2 publication Critical patent/JPS6059829B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

PURPOSE: To construct a watch of superthin type, by providing a recessed part on the rotor face that faces to one of the bearings, as well as by protrusively providing a thrust-applied part of the bearing facing to said recessed part.
CONSTITUTION: A rotor 202 is being constructed by a rotor magnet 203 of cylindrical shape, a rotor shaft 204, and a non-magnetic fixing material 206 for fixing the rotor magnet 203 to the rotor shaft 204, and supported by a bearing 207, 208. A stator 201 is arranged in a location with an air gap apart from the rotor 202. A recessed part is provided in a face of the rotor 203, facing at least one of the bearings, for instance, the bearing 207, with a thrust-applied part 207a of the bearing protrusively provided as well facing said recessed part. Accordingly, the provision of the bearing, arranged in a manner of concavo-convex pattern facing the recessed part provided in the rotor unit, can lessen the thickness in the rotor axial direction, thus with the electronic watch obtainable of superthin type.
COPYRIGHT: (C)1979,JPO&Japio
JP15371777A 1977-11-01 1977-12-21 Electronic watch motor Expired JPS6059829B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP15371777A JPS6059829B2 (en) 1977-12-21 1977-12-21 Electronic watch motor
US05/954,501 US4243329A (en) 1977-11-01 1978-10-25 Watch movement construction
GB7842210A GB2009466B (en) 1977-11-01 1978-10-27 Watch movement construction
DE2847333A DE2847333C2 (en) 1977-11-01 1978-10-31 Drive for an electronic watch
CH1127078A CH638363B (en) 1977-11-01 1978-11-01 MOVEMENT FOR A BATTERY-OPERATED ELECTRONIC WATCH AND USING IT IN AN ELECTRONIC WATCH.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15371777A JPS6059829B2 (en) 1977-12-21 1977-12-21 Electronic watch motor

Publications (2)

Publication Number Publication Date
JPS5498912A true JPS5498912A (en) 1979-08-04
JPS6059829B2 JPS6059829B2 (en) 1985-12-26

Family

ID=15568554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15371777A Expired JPS6059829B2 (en) 1977-11-01 1977-12-21 Electronic watch motor

Country Status (1)

Country Link
JP (1) JPS6059829B2 (en)

Also Published As

Publication number Publication date
JPS6059829B2 (en) 1985-12-26

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