PROBLEM TO BE SOLVED: To provide a travel control device for a slope work vehicle, the device that prevents the slipping down of a vehicle body at a slope, and can make it travel by automatic or remote control, safely.SOLUTION: A travel control device for a slope work vehicle is mounted in a mower A of 4-wheel-drive 4-wheeled in-phase steerage capable of traveling and steering by automatic or remote control. The travel control device includes: main wire 2 stretched along the width direction of a work-scheduled slope G with a pair of left and right fixed anchors 1, 1 in the upper part of the work-scheduled slope； a first pulley 3 engaged to the main wire 2 and laterally moving along the main wire 2； a second pulley 4 provided coaxially with the first pulley 3； suspension wire 5 with a middle part wound to the second pulley 4 several times； a pair of left and right wire drums 8, 9 provided in a mower A and capable of winding and feeding both ends of the suspension wire 5 driven by a pair of left and right drum drive motors 6, 7, respectively； and a control unit 10 for performing zigzag travel control of the mower A along a work slope G by controlling the winding or feeding of the suspension wire 5 to both wire drums 8, 9 in synchronization with the travelling speed and steering direction of the mower A.SELECTED DRAWING: Figure 2【課題】 斜面で車体の滑落を防止し、安全に自動又は遠隔操作で走行させることが可能な斜面作業車両用走行制御装置の提供。【解決手段】 自動または遠隔操作による走行及び操舵可能な４輪駆動４輪同位相操舵の草刈機Ａに搭載されるものであって、作業予定斜面の上部に左右一対の固定アンカー１、１で作業予定斜面Ｇの幅方向に沿って張り渡たされる主策ワイヤ２と、主策ワイヤ２に係合し主策ワイヤ２に沿って横移動する第１滑車３と、第１滑車３と同軸状に設けられた第２滑車４と、第２滑車４に中途部が複数回巻き付けられた吊下ワイヤ５と、草刈機Ａに設けられ、左右一対のドラム駆動モータ６、７により吊下ワイヤ５の両端部をそれぞれ巻き取り及び繰り出し駆動可能な左右一対のワイヤドラム８、９と、草刈機Ａの走行速度及び操舵方向に同期して両ワイヤドラム８、９への吊下ワイヤ５の巻き取り又は繰り出しを制御することで作業斜面Ｇに沿って草刈機Ａのジグザグ走行制御を行う制御部１０と、を備える。【選択図】 図２
