PROBLEM TO BE SOLVED: To improve dustproof capacity of a ventilation system chemicals sprayer.SOLUTION: In the ventilation system chemicals sprayer 1 which sprays the chemicals in a tank 6 by mixing it with an air flow of a blower 3, an air inlet 41 of the blower 3 faces a rear surface of a frame carried on a back at some space, the tank 6 is arranged above the space between the blower 3 and the frame carried on a back and a dustproof cover 11 extending downward from the tank 6 covers the space between the blower 3 and the frame carried on a back.COPYRIGHT: (C)2013,JPO&INPIT【課題】送風式薬剤散布機の防塵能力を改善する。【解決手段】タンク6の薬剤を送風機3の空気流と混合して散布する送風式薬液散布機1において、送風機3の吸気口41は隙間を開けて背負枠の背面と対向し、タンク6は送風機3と背負枠との間の隙間の上方に配置され、タンク6から下向きに延在する防塵カバー11により、送風機3と背負枠との間の隙間を覆う。【選択図】図1
