| 摘要 |
PURPOSE:To prevent large tension from being applied to a full-track further surely permit a vehicle to ascend and descend a staircase, by providing protrusion parts forcibly engaged to angular corner parts of the staircase to the peripheral face of crawlers. CONSTITUTION:When a full tracked vehicle is intended to ascend a staircase 7, pressing forces P generated by a spring or the like of a crawler displacement suppressing mechanism 9 are acted on rolling wheels 8 toward the outside of crawlers 1a, in consequence a very small sag is generated toward the inside of the crawler 1a as compared with a conventional example of the vehicle. Accordingly, very small tension T acts on a full track 1. Then as protrusion parts 12 formed to the peripheral face of each crawler 1a are forcibly engaged to angular corner parts of the staircase, the crawler 1a never causes a slip, and the full-tracked vehicle can ascend the staircase by small tension T. |
