Hand tool machine e.g. chipping hammer, has coupler comprising two coupling units, in which one coupling unit has axial cams, where symmetrical axis of each cam is arranged in circumference direction with same distance to rotation axis

摘要

The machine (11) has a drive shaft (17) driven by a motor (13) and provided for driving a tool (20) arranged in the machine. A coupler (30) has a coupling unit (31) with axial recesses that are arranged in a rotation symmetrical movable manner with a symmetrical axis cutting a rotation axis (R). Another coupling unit (41) has axial cams that are coupled with the axial recesses via contact surfaces in a torque transmitting manner. The cam symmetrical axis of each axial cam is arranged in a circumference direction with same distance to the rotation axis.