PROBLEM TO BE SOLVED: To solve the following problem: when a tilled soil surface tilled by a tilling tine rotor attached to a rear side part of a tractor is formed by wing hillers, ridging devices, or the like such that the tilled soil surface has broad ridges wider than the tilled soil width, the work for hilling the soil and forming broad ridges by using the wing hillers attached to a rear part of the tractor must be performed independently of the tilling work that uses the tilling tine rotor, thus requiring many work processes and making the whole work inefficient.SOLUTION: A ridging work apparatus 6 is configured by: providing, on an undersurface of a rear cover 3 at a side rear of a tilling tine 1 rotor 2, a one-side wing hiller 4 that hills inwardly lateral end parts of the tilled soil tilled by the tilling tine rotor 2 and hilling plates 5 and groove tail wheels 25 that are attached behind the one-side wing hiller 4 and guide the soil in a groove of the hilled soil to the left and right sides. Broad ridges wider than the width of tilling tine rotor 2 are formed by operating the ridging work apparatus reciprocatingly.COPYRIGHT: (C)2014,JPO&INPIT【課題】 トラクタの後側部に装着の耕耘爪ロータによって耕耘する耕耘土壌面を、培土器乃至畦立器等によって、この耕耘幅よりも広い広幅畝を形成する場合は、トラクタの後部に培土器を装着して培土畝立作業を広幅間隔に、前記耕耘作業行程とは独立行程として行うため多くの作業行程を要し、非能率的である。【解決手段】 耕耘爪1ロータ2の一側後部のリヤカバー3の下面に、この耕耘爪ロータ2によって耕耘される耕耘土壌の横端部を内側へ培土する片培土器4と、この片培土器4の後側に取付けられて培土溝部の土壌を左右両側へ培土案内する培土板5と溝尾輪25を設けて畝立装置6を構成し、この畝立装置6の往復作業走行により耕耘爪ロータ2幅よりも広幅域の畝立成形を行う。【選択図】 図1
