| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent or inhibit an injected resin from leaking into the inside of a hose even if the hose includes a recessed groove and a protrusion both spirally provided on its inner peripheral surface in a hose assembly in which the hose and a mouth member are integrated with each other by resin injection. <P>SOLUTION: The hose assembly A is formed by integrating a flexible hose 2 and a mouth member 1 using resin injection molding, the flexible hose 2 is configured including a hose body 2b and a lip 2r, and the hose body 2b includes a hose wall having a recessed groove and a protrusion both spirally formed on the inner peripheral surface. The lip 2r is spirally provided to cover the recessed groove and the side edge on one side of the lip 2r is integrated with the protrusion. <P>COPYRIGHT: (C)2013,JPO&INPIT |
