Patent ID: 8857917
Filing Date: 2014-10-14
Classification: E21C

Abstract:
1. A cutting tool mounting assembly adapted for attachment to a surface of a rotatable driving member of a cutting tool machine, the cutting tool mounting assembly comprising: a tool holder having a key shank; a base attached to the surface of the rotatable driving member, the base having a mounting groove for receiving the key shank of the tool holder, wherein the mounting groove of the base includes an open end for receiving the key shank and an opposing rearward end and the mounting groove slopes generally downwardly from the open end of the rearward end; and a resilient retention structure configured to interact with the base and the tool holder to facilitate a friction fit between the tool holder and the base, wherein the mounting groove includes a recess configure for receiving a bottom portion of the resilient retention structure, wherein a bottom surface of the key shank includes a notch configured for receiving a top portion of the resilient retention structure.