| 摘要 |
PURPOSE: To integrally form a sealing structure which can secure a necessary sealing property, together with a duct main body. CONSTITUTION: A ventilating duct 11 has a seal piece 9 formed integrally on the whole periphery of a duct main body 2. The seal piece 9 is bent to keep away from the center of the duct main body 2, and the ventilating duct 11 is connected to another ventilating duct 20. In other words, since the seal piece 9 is pressure contacted to a flange 21 by its restoring force, the sealing property of a connection can be secured. Furthermore, since the seal piece 9 and the duct main body 2 are formed integrally from the same sort of resin material, no separating work of different materials in order to reutilize is generated. |
