| 摘要 |
<p>A fastening method of a bolt (3) and a nut (1) comprises providing an inner screw (2) of a nut (1) to be inclined at a required angle against a central axis line of the nut; screwing a bolt (3) onto this inner screw (2); in an initial stage of fastening the bolt (3) and the nut (1), generating axial force in the bolt (3), when, due to rotation of the nut (1), a part of a bearing surface of the inner screw (2) of the nut sits on a part of a screw of the bolt; and enlarging the axial force proportionally to an increase in rotation angle of the nut (1) to also enlarge the sitting area. This invention also relates to a corresponding fastening structure of a bolt (3) and a nut (1).</p> |
