< Topic >With farm products growing in plastic tunnel for ventilating the occasion where portion of vinyl is opened, the lock which vinyl that tries does not fall is offered.SolutionsHaving the linear part and the linear part which joints with the left edge of the second linear part and the left edge of the third linear part and joints with the right hand edge of the third linear part and the right hand edge of the fourth linear part the linear part where in horizontal direction the longitudinal direction extending the linear part which is present, mutually 4 exists in the vertical across interval, the front line state part, the second linear voice part, the third linear voice part, makes the fourth linear voice part from above in sequence, joints with the right hand edge of the front line condition part and the right hand edge of the second linear part,It unifies the front line condition part left edge and the sphere 1 which, than the linear part is larger to linear vertical lower part the front line condition part right hand edge top and at a time one place unifies hemisphere 3 and the like on opposite side and to the front side of the terminal area of the front line condition part second linear part the fourth linear part left edge and the vertical linear part it constitutes as the component of one body.< Choice figure >Drawing 1【課題】農作物トンネル栽培で換気のためビニールの一部を開ける際に、ビニールが落ちないようにする止め具を提供する。【解決手段】水平方向に長手方向が延在する線状部分が、互いに間隔を隔てて垂直方向に4本存在し、上から順に、第一線状態部分、第二線状態部分、第三線状態部分、第四線状態部分とし、第一線状部分の右端と、第二線状部分の右端とを接続する線状部分と、第二線状部分の左端と第三線状部分の左端とを接続する線状部分と、第三線状部分の右端と第四線状部分の右端とを接続する線状部分を備え、第一線状部分左端と線状垂直下部に線状部分より大きい球体1を一体化し、第一線状部分右端上部と第一線状部分第二線状部分の接続部の手前側と反対側に一か所づつ半球3等を一体化し第四線状部分左端と垂直線状部分が一体の部材として構成する。【選択図】図1
