SUCTION NOZZLE FOR VACUUM CLEANER AND VACUUM CLEANER

PROBLEM TO BE SOLVED: To enhance the efficiency of cooling an electric motor to reduce the rate of temperature rise, while extending the service life of the motor and hence the service life of a floor suction nozzle for a vacuum cleaner having a rotary brush rotated by the motor. SOLUTION: A rotary...

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Bibliographic Details
Main Authors MADOKORO YASUHIRO, MURATA KATSUTAKA, HOSHIIDE SHINICHI, FUJITA KOICHI
Format Patent
LanguageEnglish
Published 24.09.2002
Edition7
Subjects
COFFEE MILLS
DOMESTIC ARTICLES OR APPLIANCES
DOMESTIC WASHING OR CLEANING
FURNITURE
HUMAN NECESSITIES
SPICE MILLS
SUCTION CLEANERS IN GENERAL
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Summary:PROBLEM TO BE SOLVED: To enhance the efficiency of cooling an electric motor to reduce the rate of temperature rise, while extending the service life of the motor and hence the service life of a floor suction nozzle for a vacuum cleaner having a rotary brush rotated by the motor. SOLUTION: A rotary brush 32 is rotatably provided within a suction chamber to face a suction opening 38 in the lower surface of a suction nozzle body 31. The rotary brush 32 is provided with a brush 40 on the outer peripheral surface of an approximately cylindrical brush holder 39 and an electric motor 41 for driving the rotary brush 32 to rotate is held by a fixed shaft 48 inside the rotary brush 32. Cooling wind, generated by a pressure difference between fresh air and the suction chamber produced by the suction force of the vacuum cleaner body, is almost entirely taken into the electric motor 41 from a cooling wind inlet 55 in the fixed shaft 48 and is guided to an output shaft through the motor 41.
Bibliography:Application Number: JP20010075784