PROBLEM TO BE SOLVED: To reduce bent path parts of a chemical fluid distribution path as much as possible, to devise the path or disposition thereof, to reduce pressure loss, and to save energy in a self-propelled pest control machine as a problem.SOLUTION: The self-propelled pest control machine includes the chemical fluid distribution path 20 ranging from a path part 20a on the inlet side of the chemical fluid fed under pressure from a pest control pump 8 to a path part 20c on the outlet side to the side of a spraying cock 16 communicating with each spraying boom 9. The chemical fluid distribution path 20 is configured to communicate between at least a first bent path part 21 and a second bent path part 22. In the self-propelled pest control machine, the path part 20a on the inlet side of the chemical fluid distribution path is provided in the horizontal direction, and a flow control valve part 24 is provided on the same line on the downstream side. Furthermore, the self-propelled pest control machine is composed so as to change the direction of the flow of the chemical fluid to a prescribed angle with the first bent path part 21.COPYRIGHT: (C)2012,JPO&INPIT【課題】本発明の課題は、自走型防除機において、薬液流通経路の屈曲経路部をできるだけ少なくし、その経路や配置に工夫をして圧力損失の低減、省エネ化を図ることを目的とする。【解決手段】本発明は、防除ポンプ8より圧送される薬液の入口側経路部20aから散布ブーム9に通ずる散布コック16側への出口側経路部20cまでの薬液流通経路20は、最低限の第1屈曲経路部21と第2屈曲経路部22を介して連通構成してあることを特徴とする自走型防除機の構成とする。また、薬液流通経路20の入口側経路部20aを水平方向に設け、この下流側の同一線上には流量制御バルブ部24を設けると共に、薬液の流れを第1屈曲経路部21によって所定角度に方向変換すべく構成してあることを特徴とする自走型防除機の構成とする。【選択図】図3
