Patent ID: 7484481
Filing Date: 2009-02-03
Classification: B25C,B25F,H01H

Abstract:
1. A combustion-type power tool comprising: a housing having one end side and another end side; a handle provided on the housing; a cylinder head disposed at the one end side of the housing; a cylinder disposed in and fixed to the housing, the cylinder defining an axial direction, the cylinder having one end positioned at the one end side of the housing and another end positioned at the another end side of the housing; a piston slidably disposed in the cylinder and reciprocally movable in the axial direction; a combustion chamber frame disposed in the housing and movable in the axial direction, the combustion chamber frame being abuttable on the cylinder head to provide a combustion chamber in cooperation with the cylinder head and the piston; an elastic member provided in one of the housing and the handle; and a switch provided in one of the housing and the handle through the elastic member, the switch having one end portion facing to the one end side of the housing, and having another end portion facing to the another end side of the housing; wherein the elastic member comprises a pair of elastic segments, one of the pair of elastic segments covering the one end portion of the switch and an other of the pair of elastic segment covering the another end portion of the switch.