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Patent Searching and Data


Title:
ELECTROMAGNETIC ACTUATOR AND SHUTTER FOR CAMERA
Document Type and Number:
Japanese Patent JP2002165432
Kind Code:
A
Abstract:

To reduce the thickness of an electromagnetic actuator for use in a camera shutter and the like.

The electromagnetic actuator is provided with a swing member 10, including a permanent magnet 11, a coil 20 for excitation, and a yoke 30 that forms a magnetic path. The swing member 10 has a fulcrum portion 10b outside the area encircled by the coil 20 and an output portion 10c at the free end thereof. The coil 20 crosses the plane on which the swing member 10 swings and is wound substantially in the direction, in which the swing member swings. Thus generated electromagnetic force can be increased and further reduce the thickness of the electromagnetic actuator.


Inventors:
Sekizawa, Koji
Application Number:
JP2000000352444
Publication Date:
June 07, 2002
Filing Date:
November 20, 2000
Export Citation:
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Assignee:
NIDEC COPAL CORP
International Classes:
H02K33/16; (IPC1-7): H02K33/16
Domestic Patent References:
JPS6371510U
JPH0714439U
Attorney, Agent or Firm:
山本 敬敏