| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve yield by preventing oblique fastening of a screw component such as a bolt during a fastening step by a portable fastening tool. <P>SOLUTION: A gyrosensor 10 (angle detection unit), which detects the tilt angle θ of the axial center L2 of the rotary shaft 2 of the impact trench 1 (portable fastening tool) with respect to the axial center L2 (reference line) of a screw hole 7, is attached to the impact trench 1. The impact trench 1 is drivable when the tilt angle θ is within a prescribed range. When the tilt angle θ exceeds the prescribed range, the impact trench 1 is not drivable. <P>COPYRIGHT: (C)2012,JPO&INPIT |
