| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a reaction receiver capable of easily determining a direction of rotation in fastening work, and to provide a fastening/loosening device equipped with the same.SOLUTION: A reaction receiver 25 provided on an outer shaft in a drive shaft 21 in which an inner shaft and the outer shaft rotate reversely to each other, includes an arm 25a extending in a direction orthogonal to a drive core of the drive shaft. Displays 71 and 72 indicating rotating directions according to fastening and loosening directions are attached to the arm. The displays can be shown by at least one group selected from among characters, signs, graphics, designs and colors which indicate the rotating directions of the arm according to the fastening and loosening directions. A cover 70 having a cushioning effect is mounted on the arm, and the displays are attached to the cover.</p> |
