| 摘要 |
A tool holder includes two pawls engaged into a chamber of a housing and each pivotally attached to the housing with a pivot axle and each having a sector gear, and the sector gears of the pawls are engaged with each other for controlling the pawls to pivot relative to the housing and to grasp or grip an object between the pawls, two soft or resilient sheaths are attached onto the pawls respectively for protecting the pawls and for softly or resiliently engaging with the object and for preventing the object from being scraped by the pawls, and one or more spring biasing devices are engaged with the pawls and the housing for biasing the pawls to stably grasp or grip the object.
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