Clutchless self-propelled vacuum cleaner and nozzle height adjustment mechanism therefor
First Claim
1. A clutchless, direct drive, self-propelled vacuum cleaner comprising:
- a nozzle base having a suction inlet at least one support wheel located adjacent a rear end of said nozzle base;
an upright housing pivotally mounted on said nozzle base;
a suction source mounted to one of said nozzle base and said upright housing;
a filter chamber located in one of said nozzle base and said upright housing;
a drive motor mounted to one of said nozzle base and said upright housing, said drive motor having an output shaft;
a geared transmission coupled to said output shaft of said motor, said transmission comprising a transmission housing for supporting said drive motor, positioned within one of said upright housing and said nozzle base;
and a driven wheel coupled to said transmission, wherein said driven wheel is mounted to said nozzle base at a location forward of said at least one support wheel.
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Accused Products
Abstract
A clutchless, direct drive, self-propelled vacuum cleaner includes a nozzle base having a suction inlet and a housing pivotally mounted on the nozzle base. A suction source is mounted to one of the nozzle base and the housing. A filter chamber is located in one of the nozzle base and the housing. A drive motor is mounted to one of the nozzle base and the housing, the drive motor having an output shaft. A transmission is directly coupled to the output shaft of the motor. A driven wheel is directly coupled to the transmission. Also disclosed is a height adjustment mechanism for the vacuum cleaner, the height adjustment mechanism employing the drive assembly of the vacuum cleaner.
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Citations
13 Claims
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1. A clutchless, direct drive, self-propelled vacuum cleaner comprising:
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a nozzle base having a suction inlet at least one support wheel located adjacent a rear end of said nozzle base; an upright housing pivotally mounted on said nozzle base; a suction source mounted to one of said nozzle base and said upright housing; a filter chamber located in one of said nozzle base and said upright housing; a drive motor mounted to one of said nozzle base and said upright housing, said drive motor having an output shaft; a geared transmission coupled to said output shaft of said motor, said transmission comprising a transmission housing for supporting said drive motor, positioned within one of said upright housing and said nozzle base; and a driven wheel coupled to said transmission, wherein said driven wheel is mounted to said nozzle base at a location forward of said at least one support wheel. - View Dependent Claims (2, 3, 4, 5)
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6. A direct drive self propelled vacuum cleaner comprising:
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a nozzle base having a suction inlet and a pair of support wheels located adjacent a rear end of said nozzle base; a housing pivotally mounted on said nozzle base; a handle mounted to said housing; a suction source mounted to one of said nozzle base and said housing; a filter chamber located in one of said nozzle base and said housing; a drive motor mounted to one of said nozzle base and said housing, said drive motor having an output shaft; a control located on one of said housing and said nozzle base for directing a rotational direction and a speed of said drive motor, said control comprising; a sleeve mounted for reciprocation on said handle, and a Hall effect sensor for detecting a pulling force and a pushing force on said sleeve; a transmission directly coupled to said output shaft of said drive motor; and
a transmission housing for accommodating said transmission, said transmission housing comprising a support located within said nozzle base for mounting said motor, wherein said transmission housing is mounted to one of said nozzle base and said upright housing; and
,a driven wheel directly coupled to said transmission said driven wheel being mounted to said nozzle base and being located forwardly of said pair of support wheels. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification