Ratchet wrench structure

Details Ratchet wrench structure Ratchet wrench structure

2005-06-07

2005-06-07

Banks, Derris H. (Department: 3722)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S060000, C081S186000, C081S185000, C081S121100

Reexamination Certificate

active

06901824

ABSTRACT:
A ratchet wrench structure includes a wrench body, a ratchet wheel, and a socket. The ratchet wheel has a center formed with a combination hole which has an inner periphery formed with a plurality of insertion ribs. Each of the insertion ribs of the ratchet wheel includes two first insertion faces located on the two opposite sides thereof, and a second insertion face located between the two first insertion faces. Thus, the ratchet wrench structure is available for sockets with sector-shaped and arcuate-shaped insertion recesses.

REFERENCES:
patent: 5295422 (1994-03-01), Chow
patent: 20030221522 (2003-12-01), Wu
patent: 20040035257 (2004-02-01), Tuan-Mu
patent: 20040099098 (2004-05-01), Chen
patent: 20040134313 (2004-07-01), Liu
patent: 20040149088 (2004-08-01), Yamamoto

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