Patent ID: 7165663

Claim:
A power screwdriver with a rotationally driven, axially displaceable mounted tool spindle ( 2 ) with a low-noise torque clutch ( 3 ), comprising a ratchet coupling ( 6 ) biased into engagement by a ratchet spring ( 5 ) and driven by a driven ratchet part ( 12 ) and a driven claw coupling ( 8 ) biased out of engagement by a slack clutch spring ( 7 ); the ratchet coupling ( 6 ) and the claw coupling ( 8 ) are combined using a common, axially displaceable, freely rotatable coupling sleeve ( 9 ), wherein the ratchet coupling ( 6 ) has opposing oriented, peripheral inclined beveled cams ( 10 ) and the claw coupling ( 8 ) has opposing oriented catches ( 11 ), wherein the driven ratchet part ( 12 ) and the coupling sleeve ( 9 ) are arranged freely rotatably on an intermediate sleeve ( 13 ) that is mounted freely rotatable and axially displaceable on the tool spindle ( 2 ), and wherein the ratchet spring ( 5 ) is arranged between the intermediate sleeve ( 13 ) and the coupling sleeve ( 9 ) and the clutch spring ( 7 ) is arranged between the intermediate sleeve ( 13 ) and the tool spindle ( 2 ).