POLYGONAL WASHER AND FASTENING STRUCTURE
卷宗概要
发明人
Hiroshi Saeki
IPC 分类
CPC 分类
Provided are a asher that is simple structure and controls the simultaneous turning of the washer. Disclosed is a polygonal washer 1 is used between a mounting surface Sa of an object to be attached S and a nutor a bolt head. The polygonal washercomprises a washer bodyA. The washer bodyA has a polygonal shape, seen from an orthogonal direction against the nut. Central recessAa is formed on the mounting surface Sa side. As for the configuration of the central recessAa, it is equal to the configuration of the nutor, it is equal to the head of a bolt, or it is formed more greatly than the nutor it is formed more greatly than the configuration of the head of the bolt. As a result, when it is tightened with the nutor the bolt, the center portion of the main bodyA of the washer has the elasticity displaced to the mounting surface side Sa is possessed.
原文（中文）
Provided are a asher that is simple structure and controls the simultaneous turning of the washer. Disclosed is a polygonal washer 1 is used between a mounting surface Sa of an object to be attached S and a nutor a bolt head. The polygonal washercomprises a washer bodyA. The washer bodyA has a polygonal shape, seen from an orthogonal direction against the nut. Central recessAa is formed on the mounting surface Sa side. As for the configuration of the central recessAa, it is equal to the configuration of the nutor, it is equal to the head of a bolt, or it is formed more greatly than the nutor it is formed more greatly than the configuration of the head of the bolt. As a result, when it is tightened with the nutor the bolt, the center portion of the main bodyA of the washer has the elasticity displaced to the mounting surface side Sa is possessed.