Patent ID: 6205891
Filing Date: 2001-03-27
Classification: B25B

Abstract:
A ratchet wrench comprising:a ring-shaped head with a shank extending from said head, said head having a threaded inner periphery defined in an inside of said head;an operation member rotatably retained in said head and having a disk portion, an engaging shaft extending from one side of said disk portion and a ridge member extending from the other side of said disk portion, a flange extending from said ridge member so as to define two recesses radially between said disk portion and said flange, said two recesses separated by said ridge member, said ridge member having two parallel surfaces on two sides thereof;two pawl members respectively received in said two recesses and each pawl member having a first side with teeth defined therein, a second side of each pawl member comprising two inclined surfaces on two end of said second side and a straight surface connected between said two inclined surfaces, said teeth of each pawl member engageable with said threaded inner periphery of said head, one of said two inclined surfaces and said straight surface of said two pawl members being engaged with respective one of said two parallel surfaces of said ridge member, andan operation disk mounted to said head and two torsion springs respectively connected between said two pawl members and said operation disk.