| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve traveling performance by easily self-advancing even on a place having a level difference such as stairs and a road surface violent in a surface recess-projection, and switching wheels and endless rubber crawlers on flatland, the stairs and the road surface violent in the surface recess- projection. SOLUTION: A front endless rubber crawler 5 and a rear endless rubber crawler 6 circularly driven by interlocking are respectively installed on the left and right both sides of a front car body frame 2 and a rear car body frame 3, the wheels 9 are respectively arranged on the left and right both sides of the rear car body frame 3 so as to be freely liftable, the left and right wheels 9 are separately driven by separate electric motors 7 and 8, a projecting caster 11 is arranged under the front endless rubber crawler 2 so as to be freely liftable, an attitude control sensor 12 is arranged for detecting tilting of a seat 10 for seating an occupant (a), an attitude control device 13 is arranged for holding the seat 10 in a prescribed state by tilting the seat 10, an inclination sensor 15 is arranged in the front car body frame 2, and a maximum speed is limited according to an inclination.</p> |
