| 摘要 |
According to the invention, the impact mechanism (12) can be brought into an impact position by an axial displacement of the guide tube (13) out of a no-load operating position, whereby a restoring spring (27) subjects the guide tube (13) to a restoring force in a direction toward the no-load operating position, and whereby at least one shock absorbing and/or spring element (30, 36, 37) is provided between the guide tube (13) and the housing (11).
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