Patent ID: 8813373
Filing Date: 2014-08-26
Classification: B23D,Y10T

Abstract:
1. A cutting tool clamp mechanism for a power tool, the cutting tool clamp mechanism comprising: a housing supported by a spindle, the spindle being configured to receive and drive a cutting tool along a longitudinal axis of the spindle; a clamping system supported by the housing and including an engaging portion movable relative to the spindle, the clamping system having an engaged condition, in which the engaging portion is engageable with the cutting tool to secure the cutting tool in the spindle, and a released condition, in which the engaging portion is disengageable with the cutting tool; and a biasing member positioned between the housing and the clamping system, and operable to bias the clamping system to the engaged condition, wherein when the cutting tool is removed from the spindle, the clamping system is held in the released condition, and upon insertion of the cutting tool into the housing, the clamping system moves from the released condition to the engaged condition; wherein the clamping system includes an actuator portion movable relative to the spindle and configured for moving the engaging portion relative to the spindle; wherein the actuator portion surrounds a portion of the spindle and is movable along a first axis substantially perpendicular to the longitudinal axis to move the engaging portion along a second axis substantially perpendicular to the first axis; wherein an ejection system includes an ejector member that contacts the engaging portion of the clamping system to hold the clamping system in the released condition.