| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a connecting structure for tubes capable of facilitating processing of the tubes and positively and stably providing high sealing performance by a simple structure. SOLUTION: This connecting structure C1 for tubes comprises a gasket member 10 having annular recessed face parts 12 and 13, tube members 20 and 30 having flange folded parts 22 and 32 formed by folding back end parts outward in a circumferential direction and constituted so that protrusive tips 23 and 33 of the flange folded parts closely contact with each annular recessed face of the gasket member, outer rings 40 and 50 attached to outer circumferences of main body parts 21 and 31 of each tube member and arranged so that tips 41 and 51 are positioned in rear parts of the protrusive tips of the flange folded parts and rear end parts 42 and 52 protrude from the flange folded parts, pushing members 60 and 70 having gasket member crimping parts 61 and 71 and outer ring pushing parts pushing the outer ring rear end parts forward, and a pressing member 80 integrally pressing each pushing member to the gasket member.</p> |
