| 摘要 |
PURPOSE: To provide a small structure of a cover tube making the fitting or removing work of the cover tube simple and easy, hardly removed, and surely preventing the infiltration of rainwater into a body main body. CONSTITUTION: A cover tube 30 is integrally formed with an elastomer or a plastomer. The cover tube 30 is constituted of a thick cylindrical connection section 30A coupled and connected to the tube fitting section of a body main body and an outside air introduction section 30B formed thinner than the connection section 30A and connected to the lower face rear end section of the connection section 30A at the upper end. |
