Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Patent
1999-01-22
2000-08-15
Scherbel, David A.
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
81 591, 811771, B25B 1346
Patent
active
06101902&
ABSTRACT:
A ratchet wrench including two clamping panels, a base seat, a rotary member, an engaging member, a pressing member and a resilient member. The two clamping panels are respectively formed with two circular holes opposite to each other. The rotary member is rotatably disposed in the circular holes. A middle portion of an outer periphery of rotary member is formed with multiple teeth. Two end portions of the outer periphery are two fitting sections for fitting into the holes of the two clamping panels. One of the fitting sections is formed with a through hole in which the pressing member and the resilient member are disposed. The inner wall face of the circular hole of the clamping panel serves to stop the pressing member and the resilient member from dropping out. Therefore, the pressing member can be pressed against a nut or a socket to facilitate operation. Also, the structure is simple, easy to be assembled and firmly engaged.
REFERENCES:
patent: 4722252 (1988-02-01), Fulcher et al.
patent: 4791836 (1988-12-01), D'Haem et al.
patent: 4819521 (1989-04-01), Lang
patent: 5119701 (1992-06-01), Wei
patent: 5687623 (1997-11-01), Hsieh
patent: 5848561 (1998-12-01), Hsieh
patent: 5857390 (1999-01-01), Whiteford
Scherbel David A.
Shakeri Hadi
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