PROBLEM TO BE SOLVED: To provide a dust catch net to set in front of an entrance of a hall to prevent falling of a ball, dust, etc., around the entrance from a gutter and to easily pick up the ball, fallen leaves, etc., even when they fall in the gutter. ;SOLUTION: A movable plate 2 is provided on a fixed plate 1 free to slide in the cross direction against the fixed plate 1. Fixed nets 3, 4 are respectively installed on the fixed plate 1 and the movable plate 2 by fixing them on them. Additionally, slide nets 4, 6 are installed on these fixed nets 3, 5 free to respectively slide in the vertical direction. Furthermore, a moving mechanism 10 to move the movable plate 2 in the cross direction is provided between the fixed net 3 of the fixed plate 1 and the fixed net 5 of the movable plate 2. In the case when depth of a gutter is shallow, the slide nets 4, 6 are not required. Additionally, when the gutter is narrow in width and deep, only the fixed plate 1, the fixed net 3 and the slide net 4 are enough.;COPYRIGHT: (C)1998,JPO
展开▼
