US 11,872,674 B2
Impact tool anvil with friction ring
Mackenzie J. Nick, Theresa, WI (US); and Jacob P. Schneider, Cedarburg, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Apr. 14, 2022, as Appl. No. 17/721,060.
Claims priority of provisional application 63/208,806, filed on Jun. 9, 2021.
Claims priority of provisional application 63/175,416, filed on Apr. 15, 2021.
Prior Publication US 2022/0331937 A1, Oct. 20, 2022
Int. Cl. B25B 21/02 (2006.01); B25B 23/00 (2006.01)
CPC B25B 23/0035 (2013.01) [B25B 21/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An impact tool comprising:
a housing;
a motor supported within the housing;
an anvil extending from the housing, the anvil including
a body rotatable about a longitudinal axis,
a driving end portion configured to receive a tool element over a distal end thereof, and
a bore extending through the driving end portion of the anvil in a direction transverse to the longitudinal axis, the driving end portion including a groove located between the bore and the distal end,
wherein the groove includes a curved portion converging toward the distal end, the groove being configured to receive a friction ring such that the friction ring follows a contour of the groove; and
a drive assembly configured to convert a continuous rotational input from the motor to intermittent applications of torque to the anvil, the drive assembly including a camshaft driven by the motor and a hammer configured to reciprocate along the camshaft.