Patent ID: 8434986
Filing Date: 2013-05-07
Classification: F16B

Abstract:
1. A washer comprising: a main body defining a through hole, the main body substantially wedge-shaped and comprising a bottom surface and a positioning surface angled relative to the bottom surface; an adjusting portion adjustably positioned on the main body, the adjusting portion substantially wedge-shaped and comprising a contact surface and a latching surface contacting the positioning surface of the main body, the latching surface angled relative to the contact surface, a wedge angle of the adjusting portion equal to that of the main body, such that the bottom surface of the main body is substantially parallel to the contact surface of the adjusting portion; and a connecting portion interconnecting the main body and the adjusting portion, wherein a height of the main body decreases towards the connecting portion, and a height of the adjusting portion increases towards the connecting portion.