| 摘要 |
PURPOSE:To perform a rough levelling work simultaneously with charging of rubble-mound and to improve the efficiency of a rubble-mound levelling work, by providing a scale plate and an openable shuter rod to the lower end part of a chute. CONSTITUTION:A rubble-mound charging device is hung down by means of a wire 7 so that the under surface of a scale plate 5 attached to the lower end part of a chute 2A is matched with a rubble-mound levelling reference surface A. Rubble-mound 9 is charged in a hopper 1 and chutes 2 and 2A, which are filled with rubble-mound up to a level higher than the reference surface A. A cylinder 4 is controlled and a shutter rod is penetrated in the chute 2A, and this causes the rubble-mound 9 charged up to a level higher than the rubble- mound levelling reference surface A within the chute 2A to be held within the chute 2A and be separated from the rubble-mound present under the rubble- mound levelling reference surface A. This, since the scale plate 5 and the shutter rod are located to the lower end part of the chute 2A, enables to perform a rough levelling work simultaneously with charging of the rubble-mound, and enables improvement of the efficiency of a rubble-mound levelling work. |
