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Title:
BRAKE DEVICE FOR ELEVATOR WINDING MACHINE
Document Type and Number:
Japanese Patent JPH0361282
Kind Code:
A
Abstract:

PURPOSE: To prevent the adsorption of foreign material between a cover and the end part of a plunger by forming a cover, for covering a brake switch provided at the end part of the plunger of an electromagnet, of non magnetic material, thereby preventing the formation of a magnetic path between the cover and the end part of the plunger even at the energizing time of the electromagnet.

CONSTITUTION: A magnetic path is not formed between a screw bar 5c and a cover 5e even at the energizing time of an electromagnet 5. The impediment of the action of a plunger 5b due to the adsorption of foreign material between the screw bar 5c and cover 5e by magnetic force is not therefore generated, thus preventing the braking action of a brake device from the generation of troubles.


Inventors:
KAWADA TOSHIHARU
Application Number:
JP1989000198297
Publication Date:
March 18, 1991
Filing Date:
July 31, 1989
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
B66B11/08; (IPC1-7): B66B11/08



 
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