| 摘要 |
<p>The tool has a drive shaft (30) displaced in a rotary and partial tangentially striking motion by a tangential striking mechanism (10). The mechanism is driven by a drive e.g. motor and/or gear. The mechanism includes an anvil (60) associated to the shaft, and a hammer (70) associated to the drive. The anvil and the hammer are movable axially under force application of a spring (81), and tangentially and strikingly under twisting of the anvil and the hammer against each other. An auxiliary mass is coupled to a main mass (71) of the hammer and stands under force application of another spring.</p> |
