| 摘要 |
PURPOSE: A loosening prevention nut is provided to form a slope in the lower surface of a loosening prevention nut, thereby multiplying a bonding force by closely adhering a screw thread. CONSTITUTION: A loosening prevention nut(1) comprises a coupling hole. The coupling hole is formed in the central part of a nut and comprises a screw thread in the inner circumference. The lower surface of the coupling hole is formed to be inclined and a slit(11) is formed in the inside of the coupling hole in a horizontal direction. A predetermined force is perpendicularly applied to a side partitioned into an upper part and a lower part by the slit, thereby the plastic deformation of a loosening prevention nut is generated. |
