| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems wherein bridging occurs at distributing operation of a small amount to block the precise distribution operation at a shutter of a chemical distributor for distributing chemicals from the sky, attached to an unmanned helicopter. SOLUTION: The chemical distributor for the unmanned helicopter is constituted as follows. A shutter case 25 is installed in the lower part of a chemical tank 20, and a shutter body 27 constituted of a shaft part 27a rotated and driven by a motor 28, and a plurality of blades 27b radially protruded from the shaft part 27a is stored in the shutter case 25. The blade 27b is formed out of an elastic body, and the shutter body 27 is constituted so as to be detachable. The motor 28 is connected to a controller 23 so that the number of revolution may be changed arbitrarily. A chemical drop-detecting means 29 is arranged at the lower part of the shutter body 27, and a display device 31 is installed in the machine body of the unmanned helicopter. The display device 31 and the chemical drop-detecting means 29 are connected to the controller 23 to enable an image to be displayed on the display means when the chemical is dropped. COPYRIGHT: (C)2008,JPO&INPIT
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