PROBLEM TO BE SOLVED: To provide an opening/closing door mechanism for getting on/off that prevents a chemical liquid in a spray state from entering into a cabin.SOLUTION: A self-propelled pest control machine includes: a cabin in a travel vehicle body serving as an operator steering chamber； a pest control boom configured to be switched between a chemical liquid spray posture extending in a right/left direction and a storage posture extending in a front/rear direction in a side of the cabin； and a chemical liquid tank at a rear side of the cabin. The self-propelled pest control machine can travel with right/left front wheels and right/left rear wheels. The self-propelled pest control machine further includes: a right/left opening/closing door for getting on/off the cabin； a right/left opening/closing switch for opening/closing the right/left opening/closing door； a right/left door motor for moving the right/left opening/closing door； and a right/left door sensor for detecting an opening/closing state of the right/left opening/closing door. When spraying of the chemical liquid from the pest control boom is started with the right/left opening/closing door opened, the right/left opening/closing door is closed by actuating the right/left door motor.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2018,JPO&INPIT【課題】キャビン内に噴霧状態の薬液が入らないようにする乗降用開閉扉機構を提供する。【解決手段】走行車体にオペレータ操縦室となるキャビンと、左右方向に延びる薬液散布姿勢、及びキャビンの側方を前後方向に延びる収納姿勢に切り替え可能にした構成した防除ブームと、前記キャビンの後方に薬剤タンクを備え、左右前輪及び左右後輪で走行可能な自走式防除機において、前記キャビン内に乗降する左右の開閉扉を設け、左右の開閉扉を開閉させる左右の開閉スイッチと左右の開閉扉を動かす左右のドアモータと左右の開閉扉の開閉状態を検出する左右のドアセンサを設け、前記防除ブームから薬液の散布が開始されて左右の開閉扉が開いていると、左右のドアモータを作動させて前記左右の開閉扉を閉じるように構成したことを特徴とする自走式防除機の構成とする。【選択図】図８
