PROBLEM TO BE SOLVED: To provide a traveling vehicle such as a four-wheeler working machine equipped with a turn linkage control device which can plant a seeding in a proper position even if it is used for multi-row planting such as eight-row planting.SOLUTION: The traveling vehicle comprises: a turn linkage mechanism which blocks or brakes a drive force of a traveling propelling body inside a turn in conjunction with a steering mechanism a transmission-shaft rotation number detection means of the traveling propelling body and a control device which repeatedly and intermittently controls a state that the traveling propelling body inside the turn is driven by driving the traveling propelling body inside the turn and a state that the drive force of the traveling propelling body inside the turn is blocked or braked by the turn linkage mechanism when the number of revolutions of the traveling propelling body inside the turn reaches a prescribed value or smaller in the number of revolutions of a traveling propelling body outside the turn which is smaller in the number of revolutions than the traveling propelling body outside the turn on the basis of the number of revolutions of the right and left traveling propelling bodies detected by the transmission-shaft rotation number detection means at the turn of a traveling vehicle body.COPYRIGHT: (C)2013,JPO&INPIT【課題】 本発明の課題は、8条植えなどの多条植え用であっても適切な位置で苗の植え付けができる旋回連動制御装置を備えた乗用型作業機などの走行車両を提供することである。【解決手段】 走行車両において、ステアリング機構に連動して旋回内側の走行推進体の駆動力を断つか制動する旋回連動機構と、走行推進体の伝動軸回転数検出手段と、走行車体の旋回時に、伝動軸回転数検出手段の検出による左右の走行推進体の回転数に基づき、旋回内側の走行推進体の回転数が旋回外側の走行推進体の回転数よりも小さい該旋回外側の走行推進体の回転数の所定値以下になれば、旋回内側の走行推進体を駆動することにより、旋回内側の走行推進体を駆動する状態と旋回内側の走行推進体の駆動力を旋回連動機構により断つか制動する状態を繰り返す断続的制御を実行する制御装置を備えた。【選択図】 図7
