| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and high torque driving machine endurable against long time use. SOLUTION: A combustion type screw driving machine 1 is provided with a bit 32 for striking a screw 1A and fastening the screw 1A by rotating around the axis, a combustion type power mechanism arranged on the rear end side of the bit 32 and adding impact force to one end side in the axial direction to the bit 32, a motor 81 having a rotatingly driving output shaft part 81A and a power transmission mechanism interposed between the bit 32 and the output shaft part 81A and transmitting torque of the output shaft part 81A to the bit 32, wherein the motor 81 rotates before adding the impact force to the bit 32 by the combustion type power mechanism. COPYRIGHT: (C)2011,JPO&INPIT |
