| 摘要 |
PURPOSE:To make it possible to mount a rod-shaped body with an objective easily by housing a cylinder-shaped spring body to which a plurality of strip-like projected piece projecting outside downward and inside upward into a cylindrical part which projects downward from the head. CONSTITUTION:A main body 1 comprises a head 11 which has an outside shape, such as disk or nut or anything desired and a cylindrical part 12 which has a cylinder-shaped space 13 which projects downward from its central part. Then, a cylinder-shaped spring body 2 is housed inside the cylinder-shaped space 13 where a plurality of strip-shaped projected pieces 21 projecting downward outside and upward inside are cut and raised in the cylinder-shaped spring body 2. After a rod-shaped body is inserted into the cylinder-shaped spring body 2, the strip-shaped projected parts 21 directed downward outside will bits into the inner wall of the cylindrical part 12 while the strip-shaped projected parts 22 directed upward inside will bite into the inner wall of the cylindrical part 12 so that they will not come off, even if pulling force is applied thereto. This construction makes it possible to mount the rod-shaped body to an objective firmly, simply by inserting the rod-shaped body into the cylindrical part 12. |
