US Patent 7454999 Locking pliers

A restricting member with an engaging structure for a pair of locking pliers comprises a first pivoting portion, a second pivoting portion and the engaging structure. The engaging structure extends out of an upper part of the restricting member, so that it can be positioned in a groove of a side handle, and makes a supporting portion of a linking member press against the groove of the side handle. The restricting member not only saves space and cost for it needs no additional subassemblies, but also makes the assembling work more convenient.