| 摘要 |
PROBLEM TO BE SOLVED: To provide technology for reducing a size in the major axis direction of a dynamic vibration reducer while absorbing a dimensional error in the mounting position of the dynamic vibration reducer at a working tool body side in a working tool having the dynamic vibration reducer. SOLUTION: The working tool includes the dynamic vibration reducer 151 having a body, weight, and elastic element. The body is formed of a plurality of cylindrical members 161, 163 coaxially arranged facing each other. Ventilation members 167, 169 for forced vibration protruded to the outside in the diameter direction of the cylindrical members 161, 163 and mounted by being inserted into a direction crossed with the major axis direction of the cylindrical members 161, 163 relative to the mounting part of the ventilation member formed at the working tool body side are arranged at the plurality of the cylindrical members 161, 163. At least one ventilation member 167 of the plurality of the ventilation members 167, 169 is relatively movable in a major axis direction relative to one cylindrical member 161. COPYRIGHT: (C)2010,JPO&INPIT |
