| 摘要 |
PURPOSE: To make it possible to execute cleaning even in such a hose that has a hose port of a drain pose, which has no attraction surface on its circumference, by a pressure change in a pipe. CONSTITUTION: This hose cleaner is composed of a cleaner body 1 which is inserted with a piston 13 in a cylinder 12 and sucks and discharges air into and from the suction and discharge port of this cylinder 12 by manually moving the piston 13 back and forth and a nozzle 2 for insertion of the hose port to be mounted to the suction and discharge port of this cleaner body 1. The outside diameter of this nozzle is made smaller nearer the front end of the nozzle 2 and the outside diameter at the front end of the nozzle 2 is so set as to be made smaller than the bore of the hose port, thereby the nozzle inserted into the hose port is so constituted as to be brought into tight contact with the hose port. |
