| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose connection structure which prevents a flow passage from being blocked owing to freezing of rainwater at a connection place between a hose and a connection joint.SOLUTION: A hose connection structure includes a hose 30 formed of thermoplastic elastomer and a connection joint 10 which is molded out of a resin material, which can be thermally deposited on the hose 30, by injection integrally with the hose 30 while using the hose 30 as an insert member. The connection joint 10 has an upstream-side hose connection part 13 to which an end of the hose is connected, and the hose connection part 13 is formed in a condition of d1≤d2, where d1 is the inner diameter of a flow passage of the hose 30 and d2 is the inner diameter of a flow passage of the hose connection part 13. An inner wall surface forming the flow passage of the hose connection part 13 is connected to an inner wall surface forming the flow passage of the hose in level or by a continuous curved surface. |
