Patent ID: 11872674
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. An impact tool comprising:
a housing;
a motor supported within the housing;
an anvil extending from the housing, the anvil configured to receive a tool element over a distal end thereof; and
a drive assembly configured to convert a continuous rotational input from the motor to intermittent applications of torque to the anvil,
wherein the anvil includes a bore extending therethrough, a curvilinear groove wrapping around the anvil between the bore and the distal end, and a curved support section formed between the bore and the curvilinear groove, the curved support section protruding into the groove to form a curved wall of the curvilinear groove, and
wherein the curvilinear groove is configured to receive a friction ring that follows a contour of the curved support section.