| 摘要 |
A bendable-head power ratchet tool is described in which a conventional motor body is connected to a conventional socket head ratchet mechanism by a unique two-piece split-shaft the pieces of which articulate in the Z-axis while delivering torque. The driveshaft and foreshaft are coupled by a pivotable shaft coupling made from a simple and rugged slotted ball with wristpin in mating socket. Surprisingly simple, the pivotable shaft coupling may be assembled by merely dropping the foreshaft onto the driveshaft in place in the housing. Such ratchet tools may be pneumatic or electric. A preferred embodiment is an air-powered bendable head ratchet wrench.
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