Centrifugal clutch

Details Centrifugal clutch Centrifugal clutch

1994-11-14

1996-11-26

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Operators

192103B, 188184, F16D 4324

Patent

active

055775870

ABSTRACT:
A centrifugal clutch for a power driven working tool such as a chain saw, hedge trimmer, or the like having a hub portion (10) adapted to be connected to an engine shaft, and at least two clutch shoes (16, 17) rotatably journalled on the hub portion. The clutch shoes are adapted, when actuated by centrifugal forces, to move against the bias of tension springs striving to release or disengage the clutch shoes from the clutch drum, and engage a surrounding clutch drum (18). The tension springs (19, 20) have one end which is connected to a clutch shoe and another end which is connected to an adjacent clutch shoe such that a bearing free of play is insured between the clutch shoes and the hub portion.

REFERENCES:
patent: 4226312 (1980-10-01), Zindler
patent: 4226320 (1980-10-01), St. John
patent: 4282962 (1981-08-01), St. John
patent: 4294342 (1981-10-01), St. John
patent: 4296852 (1981-10-01), Luerken
patent: 4635777 (1987-01-01), Nickel et al.
patent: 4903810 (1990-02-01), Stock et al.
patent: 4947977 (1990-08-01), Raymond
patent: 5280828 (1994-01-01), Reynoso et al.

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