US Patent No. 9,289,886

IMPACT TOOL WITH ADJUSTABLE CLUTCH


Patent No. 9,289,886
Issue Date March 22, 2015
Title Impact Tool With Adjustable Clutch
Inventorship Kurt P. Limberg, Milwaukee, WI (US)
John S. Scott, Brookfield, WI (US)
Assignee MILWAUKEE ELECTRIC TOOL CORPORATION, Brookefield, WI (US)

Claim of US Patent No. 9,289,886

1. An impact tool comprising:
a housing;
a motor supported in the housing;
an output shaft rotatably supported in the housing about a central axis;
an impact mechanism coupled between the motor and the output shaft and operable to impart a striking rotational force to the
output shaft; and

a clutch mechanism coupled between the impact mechanism and the output shaft;
wherein the clutch mechanism is operable in a first mode, in which torque from the motor is transferred to the output shaft
through the impact mechanism, and a second mode, in which torque from the motor is diverted from the output shaft toward a
portion of the impact mechanism at a predetermined torque setting of the clutch mechanism.