| 摘要 |
An at least partially rotating and axially percussive hand-held machine tool ( 4 ) has an impact mechanism ( 5 ) with a guide tube ( 6 ) in which a percussion piston ( 7 ) is driven in an axially percussive manner by a pneumatic spring ( 8 ) and with a slip clutch ( 10 ) which is driven in rotation, encloses the guide tube ( 6 ), is provided axially with cams ( 9 ), and has a driving sleeve ( 11 ) and driven sleeve ( 12 ) which are biased axially relative to one another under pressure by a spring ( 13 ). The driving sleeve ( 11 ) is connected by positive engagement to a control sleeve ( 14 ) coaxial to the driving sleeve by balls ( 18 ) which partially engage, respectively, in two control contours ( 19 a, 19 b) of the driving sleeve ( 11 ) and of the control sleeve ( 14 ), which control contours ( 19 a, 19 b) are arranged partially opposite one another, and the driving sleeve ( 11 ) is positively guided in such a way that the driving sleeve ( 11 ), which is axially biased under pressure by the spring ( 13 ), is displaced axially and rotated relative to the control sleeve ( 14 ) when a limiting torque is exceeded.
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