PROBLEM TO BE SOLVED: To provide a tilling device that improves tilling efficiency of an axle driven type tilling device.SOLUTION: A tilling device of a management machine is characterized as follows: supporting members 21, 22, 23 are fixed on a tilling shaft 6； 8-tilling claws 7, 7, ... in total being 4-pairs at each side of left and right where a phase is displaced by 180 degrees, respectively, in side view so as to be directed in the outside or inside are included to the supporting members 21, 22, 23； the tilling claws are displaced by 45 degrees in side view, respectively； first column tilling claws (A1R, A2R) are supported in the first supporting member 21 so as to be directed to the outside； second column tilling claws (B1L, B2R) are supported in the first supporting member 21 so that one tilling claw (B1L) may be directed in the inside； the other tilling claw (B2R) is supported in the second supporting member 22 so as to be directed to the outside； one tilling claw (C1L) of third column tilling claws (C1L, C2R) is supported in the second supporting member 22 so as to be directed to the inside； the other tilling claw (C2R) is supported in the third supporting member 23 so as to be directed to the outside； and fourth column tilling claws (D1L, D2L) are supported in the third supporting member 23 so as to be directed to the inside together, respectively.SELECTED DRAWING: Figure 5【課題】車軸駆動型耕耘装置の耕耘効率を向上できるようにする。【解決手段】耕耘軸６上に、支持部材２１・２２・２３を固定し、該支持部材２１・２２・２３に外側または内側に向くように側面視で夫々１８０度位相が変位する左右それぞれの側に４対、計８本の耕転爪７・７・・・を備え、該耕転爪は側面視で夫々４５度変位され、第1列耕転爪（Ａ１Ｒ、Ａ２Ｒ）は外側に向くように第1支持部材２１に、第２列耕転爪（Ｂ１Ｌ、Ｂ２Ｒ）は、－方の耕転爪（Ｂ１Ｌ）が内側を向くように第１支持部材２１に、他方の耕転爪（Ｂ２Ｒ）が、外側に向くように第２支持部材２２に、第３列耕転爪（Ｃ１Ｌ、Ｃ２Ｒ）の一方の耕転爪（Ｃ１Ｌ）は、内側に向くように第２支持部材２２に、他方の耕転爪（Ｃ２Ｒ）は、外側に向くように第３支持部材２３に、第４列耕転爪（Ｄ１Ｌ、Ｄ２Ｌ）は共に内側に向くように第３支持部材２３に、それぞれ支持される。【選択図】図５
