Patent ID: 8240395

Claim:
A hand-held power tool, which performs a predetermined operation on a workpiece by linear movement of a tool bit in an axial direction of the tool bit, the hand-held power tool comprising: a power tool body having a tip end region to which the tool bit can be mounted, a handle that is mounted on the power tool body and designed to be held by a user, the handle comprising an auxiliary handle which is mounted to a front region of the power tool body, an elastic element that is disposed between the power tool body and the handle and serves to reduce transmission of vibration from the power tool body to the handle, a body-side receiving part that is provided on the power tool body and supports the elastic element, a handle-side receiving part that is provided on the handle and supports the elastic element and a vibration-proofing part formed by the elastic element, and the body-side and handle-side receiving parts which are opposed to each other so as to hold the elastic element, wherein the vibration-proofing part is provided such that deformation of the elastic element appears in the form of shearing deformation in each of a direction of a z-axis defined along the axial direction of the tool bit and directions of a y-axis and an x-axis which respectively intersect with the z-axis, and the vibration-proofing part includes a rotation preventing mechanism which allows the auxiliary handle to move with respect to the power tool body in the directions of the z-, y- and x-axes by deformation of the elastic element and prevents rotation of the auxiliary handle about the y-axis.