PROBLEM TO BE SOLVED: To provide a capture device that can lower height at the time when a door is separated from the ground.SOLUTION: Three or more struts 11, 12, 13, 14 are disposed at intervals, and multiple sheets are overlapped between adjacent struts of the struts and the doors 22, 23 are disposed. The falling device makes the holding position of the doors 22, 23 separated and held from the ground be different from the falling position of the doors 22, 23 falling along the struts. A protrusion 25 makes the falling position of the falling door be different between the doors 22, 23 by the falling device. The doors 22, 23 are overlapped, and therefore the height from the ground to the upper end of the doors 22, 23 in the holding position can be lowered, while securing the height from the ground to the lower end of the doors 22, 23 in the holding position.SELECTED DRAWING: Figure 2
