Patent ID: 7217178
Filing Date: 2007-05-15
Classification: B25F

Abstract:
1. A rotary power tool comprising: a tool body, a rotary-disk shaped tool bit having a rotating surface, the tool bit performs a predetermined operation on a workpiece by a rotating movement around a rotating axis that extends perpendicular to the rotating surface, wherein the tool bit is disposed on one tip end region of the tool body such that the rotating axis extends to cross the longitudinal direction of the tool body, a handle coupled to the tool body at the end region of the tool body opposite to the region where the tool bit is mounted, the handle is disposed in a predetermined initial position in which the handle longitudinally extends parallel to the longitudinal direction of the tool body, a pivot region provided between the tool body and the handle, wherein the handle rotates with respect to the tool body around the pivot region in any direction crossing the longitudinal direction of the tool body and an elastic element disposed between the tool body and the handle, the elastic element applying a biasing force to the handle rotated around the pivot region with respect to the tool body such that the elastic element biases the handle to return to the initial position.