Patent ID: 6662691
Filing Date: 2003-12-16
Classification: B25B

Abstract:
A pair of pliers comprising two handles and an arresting device mounted pivotally between the two handles, said arresting device comprising a sleeve and a rod fitted into said sleeve, said sleeve and said rod being fastened pivotally at one end thereof with said handles, said sleeve having a receiving cell which is provided therein with a retaining piece pressing at one end thereof against a projection of said receiving cell, said retaining piece being provided with a movable end opposite to said one end of said retaining piece, sand retaining piece further having a through hole greater in diameter than said rod, said retaining piece and a side wall of said receiving cell being provided therebetween with a spring for urging said retaining piece so as to cause said movable end of said retaining piece to sway to enable said through hole of said retaining piece to retain slantingly said rod such that said rod can be moved only in one direction, said receiving cell being provided with a pin corresponding in location to said movable end of said retaining piece, said pin being turned to push away said retaining piece so as to enable said rod to move in two directions, said pin being turned such that a recess of said pin is corresponding to said retaining piece so as to enable said movable end of said retaining piece to be in a free state, thereby causing said retaining piece to be urged by said spring to retain said rod, so as to control unidirectionally a moving direction of said rod.