| 摘要 |
A cover assembly for the box of a pick-up truck. The cover assembly has a rigid cover that is sized to fit between the side walls of the box when in the closed position closing the open top of the box. The assembly includes support ledges fastened to the inside of the side walls of the box for supporting the cover in the closed position. The support ledges carry female pivots spaced from the side walls to form gaps. The cover carries male pivots that enter the gaps in the closed position of the cover, the male pivots in a non-cooperating position with the female pivots. When the cover is lifted from either side of the box, the male pivot on the opposite of the box moves to cooperate with the female pivot on that side to form a longitudinal pivot about which the cover swings when opened. 16.
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