Ratchet mechanism

Details Ratchet mechanism Ratchet mechanism

1999-05-05

2000-05-09

Marmor, Charles A

192 clutches and power-stop control

Clutches

Automatic

81 62, F16D 1106

Patent

active

060590831

ABSTRACT:
A ratchet mechanism includes a ratchet gear rotatably received in a tool member. The tool member includes a cusp, and a spring blade engaged on the cusp. A pair of pawls are supported on the spring blade for engaging with the ratchet gear. The spring blade may bias one of the pawls to engage with the ratchet gear and to disengage the other pawl from the ratchet gear. An actuator is rotatably secured in the tool member and includes two actuating surfaces for disengaging the pawls from the ratchet gear and for effectively driving the tool member.

REFERENCES:
patent: 593157 (1897-11-01), Furbish
patent: 4290328 (1981-09-01), Clark
patent: 5174176 (1992-12-01), Krivec
patent: 5613585 (1997-03-01), Tiede
patent: 5619891 (1997-04-01), Tiede
patent: 5622089 (1997-04-01), Gifford, Sr.
patent: 5647252 (1997-07-01), Miner
patent: 5749272 (1998-05-01), Phan
patent: 5832791 (1998-11-01), Lin
patent: 5873288 (1999-02-01), Gauthier et al.

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