| 摘要 |
A wrench including a framework having substantially coextensive first and second arms mounted for pivotal movement at a proximal end and extending outwardly therefrom and terminating with opposed arcuate jaws, and a wrench head assembly including a plurality of wrench head segments mountable in continuous series for rotation with the jaws and movable from a closed wrench head orientation to an open wrench head orientation in response to movement of the arms to define a gap intermediate adjacent ones of the plurality of wrench head segments carried adjacent the respective free ends of the jaws and of an extent sufficient to admit a member to be rotated, and from the open wrench head orientation of the plurality of wrench head segments to the closed wrench head orientation in response to movement of the arms to engage the member to be rotated.
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