| 摘要 |
<p>A vehicle wheel attachment offers an increased tread to support the vehicle on soft ground. A drum-like body (6) is held against the wheel (1, 2) by a co-axial anchorage device (4, 5, 8, 9) secured to the wheel using the existing wheel studs. The normal nuts are permanently replaced by special ones (10, 19, 22) which provide slots (13), screw threads (17, 20, 23) or other means by which an anchorage member (4) can be easily secured and removed without disturbing those nuts. A rod (5) from the anchorage member to the outer end of the drum, to receive the clamping means (9), is mounted, or has the ability, to flex within a limited cone. The drum (6) may have a ribbed tread (40) and provision can be made for further pieces to fit the valleys (41) and thereby alter the tread.</p> |
