PROBLEM TO BE SOLVED: To provide a tilling device that prevents an unintentional angular variation of a top cover.SOLUTION: A walk-management machine 1 performs angle adjustment of upper surface movable covers 14L, 14R on the basis of the fixed position change of guide members 17L, 17R to a fixing part 18. The guide members 17L, 17R have multiple engagement grooves 17a engaged with a shaft 19a of a fastening member 19 and defining the angle of the upper surface movable covers 14L, 14R, and a long hole-shaped guide hole 17b in communication with the multiple engagement grooves 17a. The guide members 17L, 17R and a regulation member 22 are co-tightened between the fastening member 19 and the fixing part 18. The regulation member 22 includes a first engagement part 22c engaged to the guide members 17L, 17R from a predetermined direction in a fastening state of the fastening member 19, and regulating disengagement between the shaft 19a of the fastening member 19 and the engagement grooves 17a of the guide members 17L, 17R.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】上面カバーの意図しない角度変化を防止する。【解決手段】固定部18に対するガイド部材17L、17Rの固定位置変更に基づいて上面可動カバー14L、14Rの角度調節を行う歩行型管理機1であって、ガイド部材17L、17Rは、締結部材19の軸部19aと係合して上面可動カバー14L、14Rの角度を規定する複数の係合溝17aと、複数の係合溝17aに連通する長孔状のガイド孔17bとを有し、締結部材19と固定部18との間には、ガイド部材17L、17Rと規制部材22とが共締めされ、該規制部材22は、締結部材19の締結状態においてガイド部材17L、17Rに所定方向から係合し、締結部材19の軸部19aとガイド部材17L、17Rの係合溝17aとの係合解除を規制する第1係合部22cを備える。【選択図】図3
