Patent ID: 8430183
Filing Date: 2013-04-30
Classification: B25F

Abstract:
1. An auxiliary handle for a motor-driven hand tool, comprising a mounting device which forms an upper region and provides a force-transmitting and/or form-locking connection to said hand tool; a handle forming a lower region and having a longitudinal central axis; a damping element forming an intermediate region and located at least locally between said mounting device and said handle in an axial direction, said damping element having a damping material with which, during an operation of said hand tool, it dampens vibrations transmitted through said mounting device to said handle, said damping element having at least one reinforcing region in its damping region acting for damping said vibrations that has a lower deformability than a remaining part of said damping region and during deviations of said handle in at least two different directions relative to said mounting device causes differently great elastic counter forces, wherein when considered along an axis extending parallel to a working direction of the hand tool, one reinforcing region is arranged forwardly and one reinforcing region is arranged rearwardly to said longitudinal central axis of said handle and the remaining part of said damping region has a higher deformability than said reinforcing regions, with said one forwardly arranged reinforcing region and said one rearwardly arranged reinforcing region spaced from one another circumferentially around such longitudinal central axis of said handle, and said remaining part of said damping region being located between said one forwardly arranged reinforcing region and said one rearwardly arranged reinforcing region as considered in a circumferential direction around said central longitudinal axis such that a deviation of said handle in said working direction counteracts a greater counter force than a deviation of said handle in a lateral direction transversely to said working direction.