Patent ID: 9555483
Date: 2017-01-31
CPC Classifications: B23B,B25B,Y10T

Claim:
1. In a rotatable cutting tool having a body for accepting a replaceable cutting blade, the improvement comprising: the body of the tool is elongated in shape and has a longitudinal axis and which is adapted to be rotated about its longitudinal axis during a cutting operation performed with the tool, and the body of the tool further includes a conical portion having a leading tip end and a cross-sectional width which increases in size as a path is traced rearwardly along the sides of the conical portion from the leading tip end and the conical portion defines a blade-accepting pocket within which the replaceable blade is nestingly accepted for use of the blade within the tool wherein the blade-accepting pocket includes a pair of notches wherein each notch extends substantially linearly and rearwardly along the sides of the conical portion from the tip end thereof and includes inner surfaces, and the notches communicate with one another at the tip end of the conical portion and collectively provide a forwardly-opening access passageway for nestingly accepting the replaceable blade for use with the cutting tool; and the replaceable cutting blade utilized with the cutting tool includes a body which is substantially V-shaped in form having an apex and a pair of substantially linear leg portions which are joined at the apex and each of the linear leg portions includes a cutting edge, a pair of side faces which extend rearwardly of the cutting edge and a trailing edge which extends between the pair of side faces and along the blade body opposite the cutting edge wherein the replaceable blade mist be inserted trailing-edge first into the blade-accepting pocket of the cutting tool body so that one of the linear leg portions of the body of the replaceable blade is accepted by and extends along one of the pair of notches and so that the other of the linear leg portions of the body of the replaceable blade is accepted by and extends along the other of the pair of notches, and the inner surfaces of the notches are provided entirely by the body of the cutting tool so that when the replaceable blade is nestingly accepted by the blade-accepting pocket, the inner surfaces of the notches frictionally grip the leg portions of the replaceable blade so that the replaceable blade is releaseably secured within the blade-accepting pocket by way of only the inner surfaces of the notches of the blade-accepting pocket.