| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coupling to facilitate insertion of the end part of a pipe in a coupling body and simplify assembly. SOLUTION: A coupling body 12 is formed in a cylindrical shape, and a contact surface 16 and a receiving surface 18 are formed at the internal part thereof. A lock ring 34 is formed in an annular shape, and a plurality of regulation pieces 36 protruding internally from the inner peripheral edge thereof is formed. A press body 19 is formed in a cylindrical shape. A core ring 30 is formed in a cylindrical shape and a flange part 32 is formed at the end part thereof. Further, the lock ring 34 is engaged with the receiving surface 18 in the coupling body 12, and by threadedly engaging the press body 19, the lock ring 34 is securely positioned. Further, the core ring 30 is fitted in the end part of a pipe 11 and the pipe 11 is inserted in the coupling body 12 through the press body 19. As a result, the regulation piece 36 of the lock ring 34 is engaged with the pipe 11 to effect slip-off stop regulation.</p> |
