Patent ID: 7121442

Claim:
A combustion-type power tool comprising: a housing having one end; a cylinder head disposed near the one end of the housing and formed with a fuel ejection port and an air inlet port; a cylinder secured to an inside of the housing; a piston slidably disposed in the cylinder and reciprocally movable in an axial direction of the cylinder, the piston dividing the cylinder into an upper cylinder space above the piston and a lower cylinder space below the piston; a driver blade connected to the piston to be movable therewith; a combustion-chamber frame movably provided in the housing, the combustion-chamber frame having one end abuttable on and separable from the cylinder head, a combination of the combustion-chamber frame, the cylinder head and the piston defining a combustion chamber; a fan disposed in the combustion chamber; a motor having a body and an output shaft coupled to the fan; a motor holder that accommodates the motor, the cylinder head being formed with a motor holder receiving portion in which the motor holder is slidably movably disposed; and an elastic member disposed in a gap formed in the axial direction between the motor holder and the motor holder receiving portion, the elastic member being elastically deformable when the motor holder slidingly moves relative to the motor holder receiving portion.