| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power tool which contributes to improvement in miniaturization of a tool body. <P>SOLUTION: When a tool bit 119 is not pressed against a workpiece, the power transmitting mechanism 131 is held in a power transmission interrupted state in which torque of a driving-side member 135 is not transmitted to a driven-side member 139, and when the tool bit 119 is pressed against the workpiece, the power transmitting mechanism is held in an operation state in which the tool bit 119 moves together with the driven-side member 139 in an axial direction of the tool bit so that the driven-side member 139 receives the torque from the driving-side member 135 and the tool bit 119 is driven. Tapers 146, 147 are provided between the driving-side member 135 and the driven-side member 139 and inclined with respect to the axial direction of the tool bit 119. When the driven-side member 135 moves in the axial direction of the tool bit, frictional force is caused on the tapers 146, 147 and the torque of the driving-side member 135 is transmitted to the driven-side member 139 by the frictional force. <P>COPYRIGHT: (C)2012,JPO&INPIT |
