To provide a washer which materializes the even surface contact in a washer surface and is not deformed because of inclination or deviation of the washer itself thereby exhibiting the even axial force buffering action around the axis.
The axial force buffering washer into which a bolt shaft S is inserted, is sandwiched and fixed between respective opposite surfaces of two screwed bodies O which are screwed with the bolt shaft S, wherein the sandwiched cross-section element 1 of a prescribed shape having a hollow part 2 is annularly connected around the bolt shaft S as an object to be attached to form a tube-like or coil-like ring body as a whole. On any phase around the bolt shaft S, a contour shape of the sandwiched cross-section element 1 and a cross-section area of the hollow part 2 are formed equally. Such an axial force buffering washer is sandwiched such that an equal resilient repulsive force is applied to the bolt shaft S direction in the bolt shaft cross-section because the prescribed shape of the sandwiched cross-section element is crushed and deformed in the fixed state.
IMODA YOSHIHIKO
Nozomi Tsujimoto
Morita Takuo