| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that contributes to the realization of a reduction in size of a dynamic vibration absorber and the improvement of vibration suppression performance of the dynamic vibration absorber installed in a working tool. SOLUTION: The working tool includes a tool body 103 and the dynamic vibration absorber 151. The dynamic vibration absorber 151 has a weight 155 mounted in a long axis direction of a tip end tool 119 and movable linearly in respect to the tool body 103 or a body side member 153 fixedly-provided to the tool body 103, and an elastic element 157 resiliently supporting the weight 155 to the tool body 103 or the body side member 153. The weight 155 has an internal space 156 extending from at least one end of the long axis direction of the tip end tool 119 in the long axis direction. One end side of the elastic element 157 in the long axis direction of the tip end tool 119 is inserted and disposed in the internal space 156, while the other end side thereof is disposed in the tool body 103 or the body side member 153. COPYRIGHT: (C)2009,JPO&INPIT
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