Patent ID: 8616809
Filing Date: 2013-12-31
Classification: B23B,Y10T

Abstract:
1. A toolholder comprising: a body having a tapered tool base at one end thereof, said tool base defining a tool seat for supporting a cutting plate and a rear wall extending substantially perpendicular to said tool seat, wherein said tool seat leads to an undercut along a juncture of said tool seat and said rear wall for ensuring a cutting plate lies flat on said tool seat; said tool base defining a threaded hole extending through said tool base and tool seat, said threaded hole being oriented substantially perpendicular to said tool seat; a plug screw having a head at one end defining threads on an outer surface thereof for engaging said threaded hole, said plug screw including a shank extending eccentrically from said head along an axis parallel to the axis of said head, said shank defining a smooth middle portion and a threaded portion at an end opposite the head, whereby the plug screw has threads on the head at one end, threads on the eccentric shank at the end opposite the head, and the smooth middle portion therebetween; said threaded head of the plug screw being receivable in said threaded hole defined by said tool base, wherein said shank extends outwardly from said tool seat when said head of the plug screw is received in said threaded hole, said smooth middle portion of said eccentrically extending shank being receivable in a mounting hole defined in a cutting plate for locating the cutting plate firmly against the rear wall upon rotation of said plug screw relative to said tool base; and a lock nut for receiving said threaded portion of said shank, said lock nut for securing a cutting plate against the tool seat of said tool base.