Heap climbing container cover system

摘要: A cover system for an open top container, such as a dump truck bed, includes pair of pivoting load arm assemblies, one mounted on each side the configured to jointly convey tarpaulin over heaped within bed. In embodiment, assembly telescoping arms, with lower pivotably upper rail The free end yoke, formed by arms diverging form notch. notch is catch or receive pull bar connected retractable tarp. opening maintained at level edge bed boards projecting generally perpendicular yoke. tarp unwound from roller preferably using rope attached bar. As initially unfurled, rides until it reaches position yokes. pulled further, lodges yokes and conveyed along arc defined assemblies. carries bar, consequently tarp, above assemblies swing through their complete again contacts near opposite At this point, continued movement extracts eventually covering entire