PROBLEM TO BE SOLVED: To provide a wing hiller having excellent forming performances of a ridge, and hardly causing the collapse of lateral faces of the ridge.SOLUTION: The wing hiller is composed by forming the bottom and lateral faces of the ridge with a lower end 22a and lateral end sides 22b of a forming plate 22 moving in a plowing trace and is equipped with tongue pieces 23 for pressing and forming the transverse ends of the ridge bottom so as to be elastically bendable to the rear in the lower end side 22a of the forming plate 22.COPYRIGHT: (C)2009,JPO&INPIT【課題】 畝の成形性能に優れた培土器を提供する。【解決手段】 耕起跡を移動する成形板２２の下端２２ａおよび側端辺２２ｂとで畝の底面および側面を成形するよう構成するとともに、成形板２２の下端辺２２ａに、畝底の横端部を押圧成形する舌片２３を後方に弾性屈曲可能に備えてある。【選択図】 図４
