| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bolt fastening device having the function of setting a cam bolt position in which a superior operating characteristic is attained and an efficient bolt fastening operation can be carried out. SOLUTION: A main shaft 34 to which a socket 3 holding a cam bolt 124 is fixed is rotatably supported at an one-way clutch 36 only in a fastening direction of the cam bolt 124, the cam bolt 124 is rotated in its loosening direction to enable a position of the cam bolt 124 to be adjusted and in turn when a nut 127 is fastened, rotation of the cam bolt 124 is prohibited and then the cam bolt is kept at its position setting state.</p> |
