| 摘要 |
<p>A lock nut which can be tightened with a single touch, can be fixed easily by tightening to a member to be tightened, and does not loosen after being tightened. The lock nut comprises a nut body (2) internally provided with a bolt insertion hole (5) for receiving an inserted bolt (30) and one or more recesses (6) for a screw piece having a slide face (9) inclining in the direction away from the bolt insertion hole (5) along the inserting direction of the bolt, the screw piece (3) provided in the recess (6) for a screw piece to slide on the slide face (9) while being locked in the nut body (2) and detachably engaging the bolt (30), and a member (4) provided inside the nut body (2) or at the screw piece (3), for generating frictional force between the screw piece (3) and the bolt by biting into the bolt (30) through engagement of the screw piece (3) with the bolt (30).</p> |
