MITSUBISHI MAHINDRA AGRICULTURAL MACHINERY CO LTD;三菱マヒンドラ農機株式会社
发明人:
YASUTSUGU KENTARO,安次 謙太郎
申请号：
JP2018177026
公开号：
JP2020043837A
申请日:
2018.09.21
申请国别(地区):
JP
年份:
2020
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide a work vehicle 1 which eliminates as possible, a steering operation of front wheels 8 for returning a vehicle body after turning to a direct advance travel state when turning the work vehicle at an angle exceeding 180 degree so that the vehicle body approaches an adjacent existing plow land or the like, and which does not widen a width of a headland.SOLUTION: When a steering angle of front wheels 8 becomes a prescribed angle or greater, a control device actuates a brake device of rear wheels 11 which are at inside of turning by an actuator 54 for small turning of a vehicle body, then, when the steering angle of the front wheels 8 becomes lower than the prescribed angle after turning, the control device actuates the brake device of the rear wheels 11 which are at an opposite side of turning by the actuator 54 for returning an advance direction of the vehicle body to a direct advance travel state.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2020,JPO&INPIT【課題】隣接する既耕地側等に機体が近づくように１８０度を超えて旋回させる場合に、その後の機体を直進走行状態に戻すための前輪８の操舵操作を極力無くし、また、枕地の幅を広げることがない、作業車輌１を提供する。【解決手段】制御装置は、前輪８の操舵角度が所定角度以上になると、その旋回内側となる後輪１１の制動装置をアクチュエータ５４によって作動させて機体を小回り旋回させ、さらに、旋回後に前輪８の操舵角度が所定角度を下回ると、その逆側となる後輪１１の制動装置をアクチュエータ５４によって作動させて機体の進行方向を直進走行状態に戻す。【選択図】図８
