Clutch and blade brake for lawn mower

Details Clutch and blade brake for lawn mower Clutch and blade brake for lawn mower

1980-03-10

1981-06-09

Hirsch, Paul J.

Harvesters

Motorized harvester

With selective control of drive means

192 18R, A01D 6908, A01D 6910

Patent

active

042716586

ABSTRACT:
A clutch and brake apparatus (2) includes a drive member (8) and a driven member (14) axially fixed to drive member (8). An array (50) of friction discs (52 and 54) is axially movable in a clutch chamber (22) in driven member (14). Friction discs (52) continuously engage drive member (8). Springs (48) force array (50) into engagement with thrust surface (60) on driven member (14) to couple driven member (14) to drive member (8). The driving connection is broken by a movable shell (66) which engages against the lowermost friction disc (54) through pins (74) to selectively move array (50) downwardly against the force of the springs (48). Shell (66) is moved downwardly by fingers (86) which also engage against a brake pad (76) on shell (66) to stop rotation of driven member (14).

REFERENCES:
patent: 2418019 (1947-03-01), Fast
patent: 2440304 (1948-04-01), Simmons
patent: 2891642 (1959-06-01), Moore
patent: 2985992 (1961-05-01), Dowdle
patent: 3282386 (1966-11-01), Aschauer
patent: 4035994 (1977-07-01), Hoff
patent: 4122652 (1978-10-01), Holtermann
patent: 4205809 (1980-06-01), Mayazawa et al.
patent: 4213521 (1980-07-01), Mudershon
patent: 4226313 (1980-10-01), Meldahl et al.

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