Ratchet tool

Details Ratchet tool Ratchet tool

2007-05-01

2007-05-01

Meislin, D. S. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S063100

Reexamination Certificate

active

11267601

ABSTRACT:
A ratchet tool uses a braking piece disposed in a receptacle area in the box head of a wrench for locking the ratchet wheel. The braking piece has two opposite components respectively extended from the top ends thereon and is coupled to a pushing mechanism consisting of a first and a second resilient parts. The resilient parts are attached on two lateral sides of a connecting piece, whereby the braking piece urged by a multi-step repositioning spring force in a process of backward reposition will produce louder noises for a better recognition of a user. The receptacle areas can be easily sealed by a cover plate for a fast assembly.

REFERENCES:
patent: 6386072 (2002-05-01), Yuan-Chin et al.
patent: 6907804 (2005-06-01), Shu-Ying et al.
patent: 6955104 (2005-10-01), Hu
patent: 2004/0237727 (2004-12-01), Huang
patent: 2005/0092135 (2005-05-01), Chen
patent: 2005/0092136 (2005-05-01), Chen
patent: 2005/0257651 (2005-11-01), Chen
patent: 2006/0117913 (2006-06-01), Chen

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