| 摘要 |
A pouring hose (1) has an end portion (2) fixed to an extraction opening of a tank filled with liquid reducing agent, an end portion (3) inserted into the pouring opening of a container into which the liquid reducing agent is poured, and a flexible intermediate portion (4) between the end portions (2, 3). At least one ridge (3a) is provided around the outer circumferential surface of one of the end portions and at least one groove (2c) is provided around the inner circumferential surface of the other end portion. The ridge and the groove can be engage with each other to couple both end portions, which makes the intermediate portion annular. Only changing slightly the shape of the two end portions enables the pouring hose to be stowed in an annular shape that can block entry of foreign matters into the intermediate portion. ® KIPO & WIPO 2008 |
