Patent ID: 6832533
Filing Date: 2004-12-21
Classification: B25B

Abstract:
A torque convertible adapter for driving tools comprising:a tubular body having a rectangular extension on rear end connecting to a handle, a circular receiving space in front end, a threaded outer periphery, a screw hole centrally form in a bottom of said circular receiving space and three pairs of circular recesses in different depth spacedly formed around the bottom of said circular receiving space, said each pair of circular recesses being symmetrically arranged; three pairs of spring means in different length and different elasticity respectively engaged within said corresponding circular recesses of said tubular body and each having a steel ball disposed on outer end thereof; a socket spanner having an enlarged circular rear end inserted into the circular receiving space of said tubular body, said enlarged circular rear end having six semi-circular recesses spacedly formed circumference engaged with said steel balls respectively and a through hole in a center thereof engageable with the screw hole of said tubular body; a bolt rotabably fastening said socket spanner into the circular receiving space of said tubular body through said through hole and said screw hole; a ring pad sleeved onto an outer periphery of said socket spanner; and a U-shaped cap engaged with said tubular body having a threaded inner periphery engaged with the threaded outer periphery of said tubular body and a central bore for permitting said socket spanner passing through and protruding out of said adapter.