| 摘要 |
A vehicular trailer has a retractable skid provided for each side of the trailer to extend parallel to the axis of symmetry of the trailer from a position aft of the hitch to a position just forward of the wheels. The skids pivot vertically from a point at the forward end so that the back end of the skids can be lowered and braced to support the trailer and prevent the wheels dropping over the edge of supporting surfaces and becoming jammed against forward movement. Braces extend upward from the skids to the trailer frame when the skids are lowered.
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