| 摘要 |
A ground-engaging structure, such as a wheel or an endless track for a vehicle. The ground-engaging structure comprises a load-bearing inner zone (18) of resilient compressible construction and an outer zone (19) around the inner zone (18) for contacting the ground. The outer zone (19) comprising a plurality of traction members (17) positioned around the inner zone (18). The traction members are of more rigid construction than the inner zone (18). |
