Ratchet wrench operated conveniently

Details Ratchet wrench operated conveniently Ratchet wrench operated conveniently

2006-10-17

2006-10-17

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S058000, C081S060000, C081S061000, C081S062000, C081S063000, C081S063100

Reexamination Certificate

active

07121170

ABSTRACT:
A ratchet wrench includes a handle, a drive head, a ratchet wheel, a pawl member, a control knob, a positioning plate, and an urging spring. Thus, the ratchet wrench includes a positioning plate to push the pawl member, thereby reducing the volume of the ratchet wrench efficiently. In addition, the urging spring is supported and guided by the guide shaft of the positioning plate, so that the positioning plate is not easily deformed, thereby facilitating movement of the urging spring in the positioning plate.

REFERENCES:
patent: 4561329 (1985-12-01), Lack
patent: 6845691 (2005-01-01), Hsien
patent: 2005/0145075 (2005-07-01), Lee et al.

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