PROBLEM TO BE SOLVED: To provide a rainwater collection type covering opening/closing tool that easily opens and closes a sheet and secures water since opening and closing of long plastic sheet takes time and trouble among tunnel cultivation operations of arch type support, a worker is tired due to half-sitting work and water is required for drought in summer and transplantation of seedlings.SOLUTION: The rainwater collection type covering opening/closing tool is such that rain falling on the surface of a plastic sheet or rainwater flowing directly into a rainwater groove falls through an upper rainwater groove from a cross section part in the longer direction, a water collection member 17 is inserted into and fixed on a U-shaped indented part, a hose is inserted into the other part of the water collection member and rainwater flows into a tank embedded in the ground.【課題】アーチ型支柱のトンネル栽培作業の中で、長尺ビニールシートの開閉は時間と手間がかかり、中腰作業の為疲れる。また夏場の干ばつや苗の植え替えなど水が必要になる。容易にシートの開閉や水の確保ができる雨水集水型被覆開閉具を提供する。【解決手段】ビニールシート面に降った雨や直接雨水溝に流れ込んだ雨水は上面雨水溝を通って長手方向断面部から落下し、コの字型の刻み部に集水部材１７を差込み固定し、他方はホースを差込、地面の中に埋めたタンクに流れ込む。【選択図】図２
