To provide an aerial spray device for spraying a proper amount of spray agents each having a proper particle size by making a spray amount correspond to speed.
The aerial spray device comprises transmitters 1 and 2 for transmitting command signals for spraying from the ground, and a control device 17 and sprayers 4 and 5 provided in an airframe 3. The control device 17 is provided with receiving parts 24 and 25 for receiving the command signals, a speed-link determination part 26 for determining whether or not to make the spray amount be linked with the speed, a spray amount calculation part 27 for calculating the spray amount, and spray amount control circuits 28 and 29 for controlling the sprayers 4 and 5 according to the calculated spray amount. The spray amount calculation part 27 calculates the spray amount based on preset speed-spray amount characteristics when the spray amount is linked with the speed, and controls the sprayers based on a preset reference spray amount when the spray amount is not linked with the speed. The transmitters are provided with spray main switches 7 and 11 for performing setting as to whether or not to spray, and speed-link switches 8 and 12 for performing setting as to whether or not to be linked with the speed.
ANDO KAZUTO
ARAI TORU
ITO TOMOHIDE
NEW DELTA KOGYO KK
YAMAHA MOTOR CO LTD
| JPH10113589A | 1998-05-06 | |||
| JPH10337146A | 1998-12-22 | |||
| JP2002210397A | 2002-07-30 |
Shigeki Yamakawa