| 摘要 |
<p>A chassis assembly for a mobile machine, especially a small excavator, has a frame (1) and a pair of wheels (22) mounted to the frame for independent lateral adjustement to provide a stable working platform and allow the machine to be moved through restricted access openings. The wheels are carried by support members (21) pivoted to mounting arms (18) which are in turn pivoted to the frame (1), the support members being also coupled to the frame by link arms (24) to maintain the wheel axes parallel whatever the adjusted position. The arms (18) are provided by forks (6) which mount legs (10) adjustable to engage the ground during working operations (Fig. 1). The wheels may be dirigible.</p> |
