Patent attributes
A power screwdriver (1) with a rotationally driven, axially displaceable mounted tool spindle (2) with a low-noise torque clutch (3) which comprises a ratchet-spring biased ratchet coupling (6) driven by a driven ratchet part (12) and a rigid slack clutch spring (7) biased claw coupling (8). The ratchet coupling (6) and the claw coupling (8) are combined using a common, axially displaceable, freely rotatable coupling sleeve (9). The ratchet coupling (6) has opposing oriented, peripheral inclined beveled cams (10) and the claw coupling (8) has opposing oriented catches (11). The driven ratchet part (12) and the coupling sleeve (9) are arranged freely rotatably on an intermediate sleeve (13), which is mounted freely rotatable and axially displaceable on the tool spindle (2). 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).
