| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock ring for a joint capable of being easily assembled to a joint, shortening work time therefor, and improving working efficiency. SOLUTION: A lock ring 25 for a joint is composed of a pair of lock ring bodies 25a, 25b and a spacer 30 equipped between them. The pair of lock ring bodies 25a, 25b is composed of a base ring 26 formed in a ring-shape, a plurality of controlling pieces 27 projecting inward from the base ring 26 by the same length. The spacer is formed in a toroidal shape, and the width of a ring part 30a and the width of the base ring 26 are responding to each other. Each base ring 26 and the spacer 30 are joined by an adhesive to be formed in one-piece. |
