| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the clogging of foreign matter between fins and to easily remove the large-sized deposited living things, such as shellfishes, fixed to the inside of a pipe without increasing a unit cost and weight. SOLUTION: This intra-pipe cleaning implement is provided with the plural fins 3 (3a to 3d) projecting radially so as to have the outside diameter larger than the bore of the pipe to be cleaned in the outer peripheral part of a core body 1. The fins 3 (3a to 3d) are arranged to be parted from each other in an axial direction and to be offset from each other in a circumferential direction. The front end side of the fins 3 (3a to 3d) is provided with fins 2 for peeling which are formed to an annular shape thicker than the fins described above and are slightly smaller in the outside diameter than the bore of the pipe. The entire part is integrally molded of a rigid resin.</p> |
