| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem by which there is the possibility of twisting an elastic wheel when frictional force operates, when moving a member for expanding the elastic wheel from the inside after removing a twist, in a conventional installation method, since there is the necessity of uniformizing installation tension without the twist, in installation of the elastic wheel such as ring-shaped packing and an O ring. ! SOLUTION: An installation method comprises a fitting process of fitting a tool feature shape 12 fitted to a wheel feature shape 11 provided in a rotatable twist removal tool 2 to the wheel feature shape 11, in the wheel feature shape 11 provided over the whole periphery on a side surface on the side for contacting with an installation object material 3 of the elastic wheel 1, a twist removal process of removing a twist of the elastic wheel 1 by fitting the wheel feature shape 11 of a different part of the elastic wheel 1 to the tool feature shape 12, by rotating a rotary tool 5 |
