| 摘要 |
1. An encircling automobile caterpillar in the shape of a triangle, consisting of a caterpillar secured on stretching and pressing rollers. It is characterised in that it has a driving roller with an internal gear, a drum and a securing flange (2). The caterpillar (4), mounted on the driving roller, is stretched with the rollers (3) and pressed with the rollers (5). It is secured with pin screws (1) through the roller (2) flange to the wheel (8) rim, in the place of permanent wheel fixing. |
