Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Cheng-Wei Su0
Date of Patent
April 5, 2016
0Patent Application Number
139664110
Date Filed
August 14, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A rotation control device for a tool is disposed between a handle and a tool head and includes two ratchet wheels, a spring and two C-shaped snap rings. The two ratchet wheels are symmetrically arranged. When pressed, the respective ratchet wheels will be subjected to the same force and move the same distance, thus making the engagement between the ratchet wheels and the tool head more assured while avoiding the stuck fault and improving the convenience in use.
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