| 主权项 |
1. A wrench comprising:
a handle defining a first end and a second end opposite from the first end; a first jaw having a proximal end, a distal end, the first jaw defining an interior face, the proximal end of the first jaw pivotally attached to the first end of the handle; a second jaw having a proximal end, a distal end, the second jaw defining an interior face, the proximal end of the second jaw pivotally attached to the distal end of the first jaw at a first joint assembly; a third jaw having a proximal end, a distal end, the third jaw defining an interior face, the proximal end of the third jaw pivotally attached to the distal end of the second jaw at a second joint assembly, the distal end of the third jaw being releasably engageable with the first end of the handle; wherein the first, second, and third jaws are positionable between (i) a closed position in which the distal end of the third jaw is engaged with the first end of the handle and the interior faces of the first, second, and third jaws define an enclosed gripping region defining a closure span, and (ii) a fully opened position in which the distal end of the third jaw is spaced from the first end of the handle to thereby enable radial access to the gripping region; wherein when the wrench is in a fully opened position at least one of the following occurs: (a) a maximum distance between the distal end of the third jaw and the first end of the handle is less than 300% of the closure span; (b) a maximum distance between opposite interior faces of the first jaw and the second jaw is less than 300% of the closure span; and (c) a maximum distance between opposite interior faces of the second jaw and the third jaw is less than 300% of the closure span. |
