| 摘要 |
PURPOSE: To provide an internal groove capable of retaining and holding a fixing split ring by deforming a thinned wall body on the split ring maintaining a state that the slit of the split ring is opened in a manner that the split ring can be removed later. CONSTITUTION: In order to form a groove 13 holding a ring 5, first a closing part 6 is suitably arrnaged on a shoulder 4, and then the ring 5 is guided to a thinned part 7 in accordance with the diameter of the inside of the part 7 and the diameter of the loosened ring 5. And the thinned part 7 is pushed down with a tool 9. When the thinned part 7 is guided in the direction of the split ring 5, a force applied on the split ring 5 is orthogonal to a truncated cone-like surface 6 so that the split ring is not closed tightly by sliding over the truncated cone-like surface 6. Therefore, since the inside diameter of the inclined part 7 is slightly larger than the diameter of the closing part 3, it fits completely to the ring 5. If necessary, the groove 13 from which the ring 5 is removed together with the closing part 3 is obtained. |
