| 摘要 |
<p>A torque transmission member comprising a bolt (1) having arcuate outer surfaces (3) that circumscribe a square (α), and a socket wrench (2) having arcuate inner surfaces (4) that circumscribe a square (β). When the socket wrench (2) is driven and rotated, the arcuate inner surfaces (4) of the socket wrench come into contact with the arcuate outer surfaces (3) of the bolt (1) and slide so that the axis of rotation of the socket wrench (2) may coincide with that of the bolt (1) before the bolt is fastened. According to this construction, the bolt (1) can be prevented from deforming and moreover fastened smoothly because self-aligning can be made automatically between the bolt (1) and the socket wrench (2).</p> |
