| 摘要 |
It is an object of the invention to reduce size of a dynamic vibration reducer in a power tool. A power tool according to the invention includes a dynamic vibration reducer 151 having a body 153, a weight 155 and elastic elements 157, 159. The body 153 is formed by a plurality of cylindrical members 161, 163 which are coaxially disposed to face each other. The elastic elements 157, 159 exert biasing forces on the cylindrical members 161, 163 such that the cylindrical members 161, 163 are held apart from each other. The cylindrical members 161, 163 are fixed to the tool body 103 side under the biasing forces of the elastic elements 157, 159. Venting members 167, 169 for forced vibration are provided on the cylindrical members 161, 163 and protrude radially outward from the cylindrical members 161, 163, respectively. The venting members 167, 169 are mounted by inserting into venting member mounting parts 181, 182 on the tool body 103 side in a direction transverse to the longitudinal direction of the cylindrical members 161, 163. At least one of the venting members 167 can move with respect to the cylindrical member 161 in the longitudinal direction.
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