JPS5498912A - Motor for electronic watch - Google Patents
Motor for electronic watchInfo
- 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
Links
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (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
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) |
-
1977
- 1977-12-21 JP JP15371777A patent/JPS6059829B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6059829B2 (en) | 1985-12-26 |
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