| 摘要 |
<p>This aims to provide a running vehicle comprising a straight-running speed-changing device (25) for transmitting powers to right and left running units (2) supporting a running body (1), and a turning speed-changing device (28) for transmitting powers reversely to the running units, so that the operability for the straight and turning runs may be improved by a simple and small-sized mechanism. On a turning input shaft (72) to be turned by a turning operation member (10) for the turning the speed-changing device (28), a speed-changing control member (81) is enabled to turn freely on a speed-change axis (X) perpendicular to the turning input shaft (72), and a turning control member (82) is enabled to turn freely on a turning axis (Y) perpendicular to both the axis of the turning input shaft (72) and the speed-change axis (X). These two turning control members are so associated with a speed-changing operation tool (13) for the straight-running speed-changing device (25) as turn with inclinations on those individual axes, and the speed of the straight-running speed-changing device (25) is changed by the inclined turn of the speed-changing control member (81), so that the turning speed-changing device (28) is caused to change the speed by the turn of the turning control member (82) by the turning input shaft (72).</p> |
