| 摘要 |
The present invention relates to an anti-loosening spring washer having a plate shape bent as a C-shaped to face each other. The anti-loosening spring washer comprises a mounting part which is bent as a ��shape with the same width as the longitudinal width of a nut and has a through-hole, and on which the nut is mounted in a state of being fitted in a bolt; first contact parts inclined outward from both ends of the mounting part, having the same width as the transverse width of the nut, and surrounding and being in contact with the lateral surface of the nut; and second contact parts inclined inward from both ends of the first contact parts, having a penetrated groove, and surrounding and being in contact with the top surface of the nut while being fitted in the bolt. The first and second contact parts are in contact with the lateral and top surfaces of the nut since the bent mounting part is deformed in parallel by the pressure formed while the nut is rotated to be mounted on the mounting part bent as the ��shape. Thus, a tool cannot be inserted to loosen the nut. Also, the anti-loosening spring washer is formed of an elastic material to increase coupling force between the threads of the nut and the bolt since the restoring force of the mounting part on which the nut is mounted is applied to the nut and the bolt. |
