Patent ID: 6742417
Filing Date: 2004-06-01
Classification: B25B,B60B

Abstract:
A socket wrench, comprising:a cylinder having a first open end and a second open end, said cylinder having an inner surface having first teeth; a first cap covering said first open end, said first cap having a bracket extended from said first cap, said first cap having a first hole on a center of said first cap; a second cap covering said second open end of said cylinder, said second cap having a second hole on a center of said second cap; an axis inserted in said second hole of said second cap, said axis having second teeth on an outer surface of an end section of said axis; an auxiliary socket mounted on said bracket, a mounted location of said auxiliary socket being adjustable by moving said auxiliary socket on said bracket, said auxiliary socket assisting in maintaining a position of said cylinder and preventing a vibration of said cylinder when said socket wrench is in use; a first transmission installed within said cylinder, said first transmission comprising: a first plate having first pins protruding from one side of said first plate; first epicyclic gears mounted on said first pins, each of said first epicyclic gears engaging with said first teeth of said cylinder and said second teeth of said axis; and a central gear mounted on the other side of said first plate; a second transmission installed within said cylinder, said second transmission comprising: a second plate having second pins protruding from one side of said second plate; second epicyclic gears mounted on said second pins, said second epicyclic gears engaging with said central gear and said first teeth of said cylinder; and a connecting part protruding from the other side of said second plate, said connecting part inserted in said first hole of said first cap and exposed out of said first cap for releasably connecting to a main socket; and a handle mounted on said axis, said handle comprising a gripping tube, a rod inserted into said gripping tube, one end of said rod connected to said axis, and a spring mounted between said gripping tube and said rod.