| 摘要 |
A fastening mechanism mounted in a pair of pliers comprises a pawl mechanism including an internal gear member and peripheral latched pieces, a peripheral ratchet inside a hole in one pliers with pawl mechanism disposed therein for catching and holding one of the latched pieces in a first position, a pivot joint having a circumferential gear member meshed with the gear member of pawl mechanism, an elastic member put on the joint, and a fastening member urged by the elastic member being secured to the joint. In gripping, the pawl mechanism is allowed to move in only one direction such that a release of the gripping on handles does not disengage a gripped object from the jaws in a second position. In releasing, press the fastening member to compress the elastic member for disengaging the pawl mechanism from the ratchet prior to returning to the first position once compression of the elastic member is released.
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