PROBLEM TO BE SOLVED: To perform stable spraying even when the height and width are different between traveling and spraying ridges, in a chemical agent spraying machine mounted to a self-propelled machine such as a tractor.SOLUTION: A chemical agent spraying machine, which straddles a ridge and travels between ridges by wheels of a self-propelled machine for spraying a chemical agent to a crop planted in a formed ridge, comprises: a base which is mounted to a frame of the self-propelled machine a perpendicularly rotatable rod which is mounted to the base a first shaft and a second shaft which are laterally installed to the rod two arms which vertically rotatably extend backward from the second shaft a slider which is slidably installed to the rear end of each arm a vertical shaft which is vertically movably and horizontally rotatably mounted to a sleeve slidably mounted to the slider and a chemical agent spray head which is mounted to the vertical shaft through a rear frame.COPYRIGHT: (C)2014,JPO&INPIT【課題】 トラクタ等の自走機に装着される薬剤撒布機であり、走行と撒布をする畝間の高さや広狭に違いがあっても、安定した撒布ができるようにする。【解決手段】 畝を形成して植えられた作物に薬剤を撒布するために畝を跨がって畝間を自走機の車輪で走行して散布する薬剤撒布機であり、自走機のフレームに取り付けられるベースと、ベースに取り付けられる垂直回転可能なロッドと、ロッドに横設される第一軸及び第二軸と、第二軸から上下回転可能に後延する二本のアームと、各アームの後端にスライド可能に設けられるスライダと、スライダにスライド可能に取り付けられるスリーブに上下同及び水平回転可能に取り付けられる縦軸と、縦軸に後部フレームを介して取り付けられる薬剤の撒布頭とからなる。【選択図】 図1
