Patent ID: 6289771
Filing Date: 2001-09-18
Classification: B25B

Abstract:
double-reversible ratchet wrench of the type comprising:a wrench body, said wrench body comprising a handle and a box end integral with one end of said handle, said box end defining a box formed of a big round hole and a small round hole linked to the big round hole;a ratchet wheel mounted in the big round hole inside said box end of said wrench body and adapted for turning a bolt or nut with said wrench body;a stop member mounted in the small round hole in said box end of said wrench body and turned to control the direction of rotation of said ratchet wheel in said wrench body;a cap covered on the box of said box end to hold said ratchet wheel and said stop member in place;a C-shaped retainer fastened to the box of said box end to secure said cap in position; andsupporting means installed in said wrench body to support positioning of said stop member in said box end;wherein:said stop member comprises a smoothly arched, outwardly curved, toothed engagement face forced into engagement with said ratchet wheel to limit the direction of rotation of said ratchet wheel in said box end, a backward finger strip extended out of said box end and adapted for operation by hand to turn said stop member in said box end and to shift the engagement between one of two halves of said engagement face with said ratchet wheel in controlling the steering direction of said ratchet wheel, and a back groove;said supporting means comprises a spring shaped like an open loop of oval profile, and partially engaged into the back groove of said stop member, a locating pin installed in a side hole on the handle of said wrench body to hold down said spring against said stop member.