| 摘要 |
PCT No. PCT/CA95/00078 Sec. 371 Date Aug. 12, 1996 Sec. 102(e) Date Aug. 12, 1996 PCT Filed Feb. 10, 1995 PCT Pub. No. WO95/21761 PCT Pub. Date Aug. 17, 1995A track wheel having a self supporting track (1) mounted on a pair of load bearing rollers (2, 3). The track (1) comprises a continuous resilient band having a preformed transverse and longitudinal curvature for resisting flattening to a larger radius under load but substantially free to bend to a smaller radius of curvature for passage around the rollers. The radius (8) of transverse curvature is made approximately equal to the radius (7) of said rollers, and the radius (15) of longitudinal curvature is made not greater than 20 times the radius (8) of the transverse curvature to provide a short track wheel having a high load capacity and large surface contacting area or footprint. |
