Centrifugal clutch

Details Centrifugal clutch Centrifugal clutch

1996-02-12

1997-10-28

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Operators

192 30V, 192 76, F16D 4318, F16D 1316

Patent

active

056809204

ABSTRACT:
A centrifugal clutch for a power-drive working tool, such as a chain saw, includes a hub (10) adapted to be operatively connected to a drive shaft of an engine, and at least two clutch shoes (13) operatively connected to the hub and radially movable in order to, when actuated by centrifugal force, engage a clutch drum radially surrounding the shoes against the action of a resilient member (16) striving to disengage the shoes from the drum. Each of the clutch shoes is slidably connected to a spoke (12) made integral with the hub. Each of the spokes has a cross-section including two integral, laterally-displaced rectangular portions (12a, 12b). Each spoke is slidably received in a complementary recess formed in a clutch shoe, whereby mutual lateral guiding of the spoke and the clutch shoe is insured.

REFERENCES:
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patent: 2382228 (1945-08-01), Howell
patent: 2400585 (1946-05-01), Wolff
patent: 2720300 (1955-10-01), Muhlbeyer
patent: 2730219 (1956-01-01), Kitto
patent: 3610382 (1971-10-01), Makinson
patent: 3696901 (1972-10-01), Henry
patent: 3970178 (1976-07-01), Densow
patent: 4029187 (1977-06-01), Davis et al.
patent: 4625849 (1986-12-01), Gommel
patent: 5419421 (1995-05-01), Lohr
patent: 5437356 (1995-08-01), Lohr
patent: 5445250 (1995-08-01), Koschinat

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