| 摘要 |
<p>The powered hand tool, also called a hammer drill, has a percussion mechanism (45) which delivers axial blows to a drilling spindle (51), which transmits these axial blows, if need be together with a rotary movement, to a tool fastened to the drilling spindle. The drilling spindle (51) is guided in an axially movable manner in two rolling bearings (56, 57). Between the rolling bearings it has a collar (58) which reaches into a space defined by two stop shoulders (59, 60). The stop shoulders (59, 60) are formed on bodies (61, 62) which are supported via damping means (63, 64) on the housing of the machine. This dampens in particular the blows arising when the tool or the drilling spindle rebounds onto the powered hand tool. <IMAGE></p> |
