| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a screwing machine generating low impact and low noise and having long life. <P>SOLUTION: This screwing machine 1 comprises a motor 3 and an end-bit mounting part 5 to which a bit 10 rotatingly driven to tighten a screw is attached. A multiple disk friction clutch 4 having ten sheets of first clutch plates 43 and ten sheets of second clutch plates 44 is interposed between the end-bit mounting part 5 and the motor 3. The multiple friction clutch 4 is movable in the rotating axis direction of the bit 10, generates a friction between the first clutch plates 43 and the second clutch plates 44 by moving in the rotating axis direction while the bit 10 is being pressed against a screw, and transmits the drive force of the motor 3 to the bit 10. <P>COPYRIGHT: (C)2009,JPO&INPIT |
