Detent clutch for a vacuum cleaner

Details Detent clutch for a vacuum cleaner Detent clutch for a vacuum cleaner

1985-12-31

1988-08-30

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

192 56R, 464 37, A47L 530

Patent

active

047666412

ABSTRACT:
A clutch mechanism for use in the drive mechanism for a vacuum cleaner floor cleaning rotary brush is provided which prevents damage to the drive belt in the event the brush becomes jammed and is prevented from rotating. A cam ring having external bumps carried on resilient beams is nested inside a driven sprocket with the bumps positioned in valleys between ridges formed on the interior of the sprocket. A pair of end caps sandwich the assembly of the cam and sprocket. The cam is keyed to the rotary brush and thus when the brush becomes jammed, the sprocket will continue to rotate, and the torque applied between the sprocket and cam will cause the ridges to push radially inwardly against the bumps and beams of the cam permitting the bumps to pass over the ridges dissipating the energy of the rotating sprocket.

REFERENCES:
patent: 2551718 (1951-05-01), Auten
patent: 2563112 (1951-08-01), Hill et al.
patent: 3724815 (1973-04-01), Hawkins et al.
patent: 4235321 (1980-11-01), Stein
patent: 4317253 (1982-03-01), Gut et al.
patent: 4429430 (1984-02-01), Lyman

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