Truck with sliding roof

Claim 1

A slidably shiftable roof structure for a truck comprising in combination: a truck having a cab and a rear, cargo carrying compartment formed by a floor and two laterally spaced, upright side panels; a covering roof over said cargo carrying compartment, said roof including a generally horizontal top wall and a pair of opposed side walls depending downwardly from the lateral edges thereof, said side walls being coplanar with said upright side panels and slidably supported directly thereon, and said roof side walls being of greater thickness than said side panels with the vertical surfaces of said side walls and side panels on one side thereof being in vertical alignment and the vertical surface on the opposite side of said side walls being laterally offset beyond the adjacent vertical surface of said side panels so as to define a pair of planar, horizontal shoulders on the bottom surface of each of said side walls laterally offset from the top surface of each of said side panels; a first pair of longitudinal guide rails affixed to the top of said side panels on the side thereof underlying said horizontal shoulders, said guide rails being of inverted, J-shaped configuration with downwardly turned, hooked end portions including a horizontal segment at the top thereof horizontally aligned with the top surface of each of said side panels, and said horizontal shoulders abutting against said horizontal guide rail segments in sliding engagement therewith; and a second pair of longitudinal guide rails affixed to said laterally offset vertical surfaces of said roof side walls, said second guide rails being J-shaped and having upwardly turned, hooked end portions at their lower ends interlocked with said first guide rails in sliding engagement therewith, whereby said roof is secured against vertical and lateral displacement with respect to said side panels.