Problem to be solved: to adjust the right and left intervals of the driving wheel and the auxiliary wheel in the field working car which can run even if the field plane is soft by adding the auxiliary wheel arranged in the driving wheel of the field work wheel, and to prevent the auxiliary wheel connecting shaft from projecting greatly toward the side Issue.In the field work vehicle in which the auxiliary wheel 100 can be attached to the auxiliary wheel connecting shaft 112 of the auxiliary wheel mounting member 110 attached to the side portion of the drive wheel 10 of the field work vehicle, the auxiliary wheel mounting member 110 is mounted on the flange surface of the drive wheel 10 and the auxiliary wheel connection part 111 is mounted This auxiliary wheel connecting portion 111 is a field work vehicle characterized by a detachable auxiliary wheel connecting shaft 112.Diagram【課題】圃場作業車の駆動輪に並べて補助車輪を追加することで、圃場面が柔らかくても走行可能にする圃場作業車において、駆動輪と補助車輪の左右間隔を幅広く調整可能にすると共に、補助車輪連結軸が大きく側方へ突出することがないようにすることを課題とする。【解決手段】圃場作業車の駆動輪10の側部に取り付ける補助車輪取付部材110の補助車輪連結軸112に補助車輪100を取り付け可能にする圃場作業車において、補助車輪取付部材110は駆動輪10のフランジ面に取り付ける補助輪連結部111と、この補助輪連結部111に着脱可能な補助車輪連結軸112で構成したことを特徴とする圃場作業車とする。【選択図】図1
