Title:
SUCKER FOR USE ON FLOOR
Document Type and Number:
Japanese Patent JPH0638914
Kind Code:
A
Abstract:
PURPOSE: To prevent a sudden stop of operation of a motor for protection from being overheated during the operation by means of a protector such as a posister, thus preventing a trouble due to overheat of the motor, which is likely to be overheated by rush current every time when a rotary brush changes its rotation direction.
CONSTITUTION: A sensor 9 to detect surface temperature of a motor 6 to drive a rotary brush 5 is provided and a control circuit is also provided to lower driving current for the motor 6 as the surface temperature of the motor 6 gets higher.
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Inventors:
HAYASHI NOBUHIRO
Application Number:
JP20079892A
Publication Date:
February 15, 1994
Filing Date:
July 28, 1992
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
A47L9/04; A47L9/28; (IPC1-7): A47L9/28; A47L9/04
Attorney, Agent or Firm:
Akira Kobiji (2 outside)
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