Road vehicle having a rear dump box

Details Road vehicle having a rear dump box Road vehicle having a rear dump box

B - Operations, Transporting

60

P

B60P 1/28 (2006.01)

Patent

CA 2058661

ABSTRACT OF THE DISCLOSURE The structural design of a truck box is improved for mounting on a conventional chassis, the truck box being of the type which is pivotal about a transverse axis at the rear end of the truck box for lifting of the forward end of the truck box by a jack for discharge of pourable solid materials through a rear tail gate. The structure of the truck box includes a pair of longitudinal I-beams under the floor with the I-beams designed to constitute the main longitudinal support for the truck box. The floor can thus simply be a sheet laid across the top of the I-beam without the necessity for transverse structural ribs. Sidewalls also include no vertical structural ribs but include a fabricated longitudinal box section along the top edge to prevent outward bowing of the side walls. The longitudinal force on the truck box is transmitted to the jack by a pair of beams welded to the top of the I-beams and extending upwardly and forwardly therefrom to a cradle at the top of the front wall attached to the top of the jack. The structural design uses less material than conventional arrangements and is improved aerodynamically.

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