The mother of this invention is my hatred of shoveling aggregate out of my pickup truck. I built a shallow wooden box that keeps the stone in one place when I drive, and dumps it exactly where I want it when I get to the site.
The dump-bed box fits between the truck’s wheel wells, where it rests on two or three lengths of 3/4-in. pipe. When the dump-bed is empty, I block it up with a couple of 2x4s to keep it from rolling around while I’m driving. Before loading I pull out the blocks and make sure that the pipes are oriented as shown in the drawing. This dump-bed holds about a half-yard, and the loader operators I’ve worked with so far have been able to fill it without spilling a granule.
To unload, I drop the tailgate all the way down, back the truck up to the dump point and hit the brakes. The dump-bed rolls back, coming to rest with one end on the ground and the other on the back of the truck. I just pull out the end piece, and the rest of the aggregate can be pushed out of the dumper.
Al Dorsa, Christiansted, None