| 摘要 |
PROBLEM TO BE SOLVED: To drastically reduce the generation of noise and vibration while avoiding lowering of the efficiency of loading work. SOLUTION: This discharge chute device 10 is provided with a cylindrical chute 14. A carrier ship 12 is provided with a recessed soil/stone storage part 20. The cylindrical chute 14 is provided with an outer cover 14a, an inner cover 14b, a plurality of bearing plates 14c, a raising/lowering jack 14d, and a support frame 14e. The inner cover 14b has a similar figure to the outer cover 14a and vertically movably installed in the outer cover 14a. A plurality of bearing plates 14c once bearing the soil/stone A put in the cylindrical chute 14 and then dropping them downward are vertically installed into a cascade at some intervals apart therefrom in the inner cover 14b.
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