| 摘要 |
<p>1. Site vehicle of the type comprising a tub (1) and two wheels (2, 3) arranged coaxially on either side of the tub (1), characterised in that the said tub (1) is inscribed in the imaginary cylinder formed by the said wheels (2, 3) and in that the tub (1) is provided with two arrangements (8, 9) of bearing members (7) projecting on either side of the latter (1), each wheel (2, 3) comprising a running track and associated guide means (10), each arrangement (8, 9) of bearing members (7) cooperates with the running track and the guide means (10) of each of the wheels (8, 9) in order to ensure simultaneously the free rotation of the tub (1) with respect to the wheels (2, 3) and the cohesion of the arrangement.</p> |
