| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily remove rust stuck to the inside face of a branch pipe part in a water pipe channel without using a device with a complicated constitution, and also to exhaust the rust to the outside. <P>SOLUTION: A branch pipe cleaning device is composed of: a pipe shaft 1 whose tip is integrated with a removing blade 2; and an exhaust port 3 bored in the outer face of the pipe shaft 1. The device is attached to a branch pipe part p by a connection member 4 externally fitted to the pipe shaft 1 in a water-stopped state, and lowers while rotating an operational handle 5 at the rear edge of the pipe shaft 1, so as to crush rust at the inner face of the branch pipe part p. After that, the exhaust port 3 is opened, and the rust is exhausted to the outside. Compared with the conventional ones in which a cleaning means and a rust exhaust means are separated, its operability is remarkably improved. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
