PROBLEM TO BE SOLVED: To provide a boarding/alighting switch allows an operator to easily and safely operate lifting of a control boom, in a self-propelled pest control machine which houses the control boom in a side part of a travelling machine body along a longitudinal direction.SOLUTION: In the self-propelled pest control machine, a cabin is arranged in a front part of the travelling machine body which travels with front and rear wheels, and a chemical tank 30 is loaded in a rear part of the machine body. A control boom is arranged in front of the cabin and can be switched between a pest control work posture in which the control boom is laterally extended, and a housed posture in which the control boom is arranged along a rear-up posture at a lateral side of the travelling machine body. A lifting switch 65a for lifting up and down the control boom is arranged at a side rear part of the cabin while allowing the switch to be operated from the side of the travelling machine body.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2018,JPO&INPIT【課題】防除ブームを走行車体の側部に前後方向に沿わせて収納する自走式防除機において、作業者が走行車体に搭乗する際に防除ブームを上昇させる安全に操作し易い乗降用スイッチを提供する。【解決手段】前輪と後輪で走行する走行車体の前部に作業者が搭乗するキャビンを設けて後部に薬剤タンク３０を搭載し、前記キャビンの前部に設ける防除ブームを左右に伸ばした防除作業姿勢と前記走行車体の左右側部に後上がり姿勢で沿わせた収納姿勢に切換え可能にした自走式防除機において、前記防除ブームを昇降する昇降スイッチ６５ａを前記走行車体の側部から操作可能に前記キャビンの後側部に設けた。【選択図】図６
