The rain and the yu which prevent the clogging by the fallen leaves and the rubbish etc

摘要

(57) Abstract Objective In the rain and the yu which are used for the residence and the like the network, the duckboard taking 1The ri attaching, the structure which prevents the clogging by the fallen leaves and the rubbish etcIt does and makes maintenance control almost unnecessary safety and the comfort, the cheap residenceAnd so on it is something which is guaranteed. Constitution Melting the class or duckboard 2 in the suitable part of the rain and yu 1Falling to the yu with the fallen leaves and the rubbish and the like and so on with installingIt is something which the rain that tries flows without being plugged. maIt is, the rain and the rain of the yu even in socket 3 of the flexible pipe which conducts water to the groundClass 4 is installed with melting and the like the clogging with center of the flexible pipeIt prevents.