| 摘要 |
A system for leveling vehicles such as those used for family camping employs a plurality of jacks secured to the front and rear bumpers of the vehicle. The jacks are adjustable in length and are pivoted to the front and rear bumpers and have a ground engaging fulcrum portion. When the vehicle is driven against the jacks, it tends to rotate the jacks into a vertical condition around the ground engaging ends of the jacks, and thereby partially lifts the vehicle off its spring suspension an amount corresponding to the height of the jack. To restore the vehicle to its operating condition, it need only be driven in a reverse direction, rotating the jacks out of their vertical condition and restoring the full weight of the vehicle to its spring suspension.
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