| 摘要 |
PURPOSE:To unload loaded granules and the like so smoothly, by forming opposed inner surfaces of a back door, where a discharge part of granules is installed in a central part in a cargo compartment, as tilted to come nearer to each other in proportion as they are going rearward. CONSTITUTION:Loading and unloading of a general cargo B are carried out from a rear end 7 of a cargo compartment 5 after opening a back door 16. On the other hand, loading of granules A is carried out from an input port 14 with a cover body 15 of a loading part 13 opened. And, unloading of the granules A is carried out by discharge from a discharge port 21 in a way of opening a cover body 22 of a discharge part 20 in the back door 16 while driving a cylinder 10 and tilting the cargo compartment 5 in the rear of an undercarriage 6. At this time, both sides 18 of the back door 16 are situated between both side walls 23 of the cargo compartment 5 and a discharge part 20, and provided with inner surfaces 24 being tilted to come nearer to each other, insomuch that they go to the rear. Therefore, the granules A inside the cargo compartment are guided by these inner surfaces 24 tilted in corresponding to both the angles of repose and slide, thus they flow toward the discharge port 21 in a smooth manner.
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