PROBLEM TO BE SOLVED: To prevent electric trouble by controlling power distribution to a conductive part to prohibit unnecessary power distribution in a sprayer implement of electrostatic nozzle type.SOLUTION: The chemical sprayer implement includes: conductive parts (50) disposed in the vicinity of a spray nozzle (16) of a center boom (12) and in the vicinity of spray nozzles (18) of right and left side booms (13) and a high-voltage power supply device (51) for feeding high voltage to the conductive parts (50). The chemical sprayer implement also includes: travelling velocity detecting means (S) for detecting the travelling velocity of a machine body (1) and power switching means (K) for turning off the high-voltage fed to the conductive parts (50) when the travelling velocity (v) detected by the travelling velocity detecting means is a predetermined prescribed value (v1) on the low velocity side or lower, and turning on the high-voltage fed to the conductive parts (50) when the detected travelling velocity (v) exceeds the prescribed value (v1) on the low velocity side.COPYRIGHT: (C)2012,JPO&INPIT【課題】静電ノズル形態の散布作業機において、導電部への通電を制御して必要以上の通電を行わせないようにし、電気的トラブルを未然に防ぐ。【解決手段】センタブーム(12)の噴霧ノズル(16)の近傍、及び左右サイドブーム(13)の噴霧ノズル(18)の近傍に導電部(50)を配設し、前記導電部(50)へ高電圧を供給する高電圧電源装置(51)を設けた薬液散布作業機において、機体(1)の走行速度を検出する走行速度検出手段(S)を設け、この走行速度検出手段による検出走行速度(v)が予め設定した低速側所定値(v1)以下の時には前記導電部(50)への高電圧供給を切り、該検出走行速度(v)が低速側所定値(v1)を超えると前記導電部(50)への高電圧供給を入りに切り替える給電切替手段(K)を設けた。【選択図】 図16
