PROBLEM TO BE SOLVED: To provide a technology capable of mounting/dismounting a soil disinfector simply and independently without using an exclusive stand, whereas, in a conventional soil disinfector, a stay thereof is required to be mounted/dismounted with a pin, while being held on a position mountable on/dismountable from a hitch of a running vehicle, by lifting the soil disinfector or the like when being mounted on/dismounted from the running vehicle.SOLUTION: A chemical injection claw 16L of a soil disinfector has an extension mechanism 15L sliding vertically in a cylindrical support 44 provided in a machine body, for inserting and fixing a fixture 54 from a bearing hole thereof to adjustment holes 51a...51d, 52a, 52b of the chemical injection claw 16L, to thereby set so as to have a prescribed extension length L. The adjustment holes 51a...51d, 52a, 52b comprise a first adjustment hole group 51 for setting an injection depth, and a second adjustment hole group 52 for performing attitude control of the machine body in the state where the tip of the chemical injection claw 16L is allowed to abut on the ground 57, and the second adjustment hole group 52 is constituted so as to have a smaller diameter than the first adjustment hole group 51, on the lower side than the first adjustment hole group 51.COPYRIGHT: (C)2014,JPO&INPIT【課題】従来の土壌消毒機では、走行車両への着脱時に、土壌消毒機を持ち上げたりして、そのステーを、走行車両のヒッチとの着脱可能位置に保持しつつピン等で着脱する必要があった。専用スタンドを用いずに、単独で簡単に着脱する技術を提供する。、【解決手段】土壌消毒機の薬液注入爪16Lは、機体に設けた筒状の支持具44内を上下摺動し、その支持孔から薬液注入爪16Lの調整孔51a・・・51d・52a・52bにかけて固定具54を挿通固定して所定の伸縮長さLに設定する伸縮機構15Lを有し、調整孔51a・・・51d・52a・52bは、注入深さを設定する第一調整孔群51と、薬液注入爪16Lの先端を地面57に当接させ機体の姿勢制御を行う第二調整孔群52とから成り、第二調整孔群52は、第一調整孔群51よりも下方で、第一調整孔群51よりも小径に構成した。【選択図】図4
