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Patent Searching and Data


Title:
ACTUATOR FOR SHUTTER
Document Type and Number:
Japanese Patent JP3805848
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide an actuator for shutter which causes no starting failure and attain cost reduction and prevent a shutter from coming into action even if current is cut off with the shutter opened or closed.
SOLUTION: A cylindrical two-pole magnetized magnet 15 fixed on a shaft 11 which is rotatably-fitted on a bearing 12 fixed at a housing case 16, and a pair of claw poles A, B bent to an annular range of 90 degrees at such a curvature as to face the magnet 15 in parallel are fixed so as to face the top and bottom of a coil 13 respectively. On one end of the shaft 11, the shutter 4 is fixed, and the shutter 4 is formed so as to turn in only a range of 90 degrees by stoppers 3a, 3b.


Inventors:
Oki, Koji
Application Number:
JP1996000355114
Publication Date:
August 09, 2006
Filing Date:
December 20, 1996
Export Citation:
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Assignee:
NAMIKI PRECISION JEWEL CO LTD
International Classes:
G03B9/08; H02K33/16; G05D3/00; G05D3/10; (IPC1-7): H02K33/16; G05D3/00; G05D3/10; //G03B9/08
Domestic Patent References:
JP56074990U
JP56024328A