| 摘要 |
PROBLEM TO BE SOLVED: To provide a ratchet wrench capable of reducing the minimum operation angle without increasing the number of ratchet teeth, preventing the reduction of mechanical strength, and facilitating mass production without necessitating high machining precision. SOLUTION: In this ratchet wrench which consists of a handle part and a head part incorporating a ratchet mechanism and in which the ratchet mechanism consists of a ratchet gear having a gear part and a tooth locking mechanism fitted in a ratchet tooth in the gear part to transmit rotation operation of the handle part to the ratchet gear, at least two sets of claw members fitted in the ratchet teeth are arranged and positioned symmetrically on the right and left sides, and two claw members on respective sides are singly operated, respectively, to fit them into the ratchet teeth alternately.
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