Patent ID: 7278196
Filing Date: 2007-10-09
Classification: B23B,Y10T

Abstract:
1. A tool holder suited to be removably received into a tapered opening in the spindle of a machine tool, comprising: a shank; a tool holder body having an axial opening with a first end for receiving a tool, a second end having an internal threaded means for receiving said shank, and an annular seat for seating said shank; wherein said shank has a first end for engaging the internal threaded means of the tool holder body such that a shank body is disposed axially beyond said annular seat, the shank having an annular collar suited for seating on said annular seat such that the shank and the holder body form an internal annular chamber adjacent said annular seat; a cone having an external tapered wall formed about an axial opening and receivable in an opening of a rotatable drive spindle, the cone having a first end of a lesser diameter and a second end of a greater diameter, the cone having a radially expandable neck receivable in the internal annular chamber of the tool holder body when the cone is telescopically received on the shank; and knob means on the first end of the cone connected to the shank to axially move the cone toward the body to radially expand the neck to a wedged position between the tool holder body and the shank.