| 摘要 |
<p>OF THE DISLOSURE A downwardly opening inverted channel is provided for mounting to the underside of a trailer tongue with the channel extending longitudinally of the tongue. The channel includes a pair of depending opposite side flanges interconnected along the upper marginal edges by a bight portion extending therebetween and a generally U-shaped leg assembly including upstanding legs interconnected at their lower ends by a horizontal cross piece has the upper ends of first and second legs thereof pivotally supported from the outer sides of first and second flanges, respectively, of the channel by first and second pivot structures for angular displacement of the U-shaped leg assembly relative to the channel about substantially aligned axes extending transversely of the channel. The leg assembly is swingable between a downwardly extended depending and slightly downwardly and forwardly inclined position and a rearwardly projecting upwardly retracted horizontal position. The channel includes toward the extended position and the channel includes detent structure engageable by one of the legs for releasably retaining the leg assembly in the downwardly extended position as well as the upwardly retracted position.</p> |
