PROBLEM TO BE SOLVED: To solve such a current problem that a culvert pipe for drainage is embedded in a farm field, sediment such as earth and sand, slime and so on stays in the pipe and blocks the interior of the pipe, and although a work for removal of the sediment in the pipe must be performed when the culvert pipe is blocked, use of a sediment removal device has been complicated, and therefore, the blocked culvert pipe is left and becomes useless lengthening.SOLUTION: A brush body, which can be inserted in a culvert pipe body, is interposed in the middle of a guide wire, and the guide wire is so configured as to be endlessly hung from the culvert pipe interior between a water intake port and a water discharge port, which are both end openings of the culvert pipe body, to the exterior thereof. When it is assumed that sediment such as earth and sand, slime and so on clogs in the culvert pipe body, the guide wire is pulled, and the interposed brush body is slid in the culvert pipe body so as to clean the interior of said pipe, whereby the clogged matter, which is the sediment, can be discharged from the water discharge port.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】圃場には排水のために暗渠パイプを埋設している。パイプ内部に土砂やスライムなどの堆積物が滞留しパイプ内を閉塞してしまう。暗渠パイプが閉塞すると、内部の堆積物を取り除く作業を行わなければならないが堆積物除去装置の使用が煩雑であった。閉塞した暗渠パイプは放置されて無用の長物化としているのが現状である。【解決手段】ガイドワイヤの中途に暗渠パイプ本体中を挿貫可能としたブラシ体を介在配設するとともに、ガイドワイヤは暗渠パイプ本体の両端開口部である取水口と吐水口との間の暗渠パイプ本体内部から外部にわたって無端状に架け廻して構成し、暗渠パイプ本体内部に土砂やスライムなどの堆積物が詰まったと思われる時期にガイドワイヤを引張り操作して介在したブラシ体を暗渠パイプ本体中で摺動させて内部を清掃し吐水口から堆積物である詰り物を排出可能にしてなる。【選択図】図１
