| 20100032978 | ROLLING TARP SYSTEM - A tarp bar may be an alignment member, a reinforcement member, and a furling control member, without adding substantial weight or complexity to a rolling tarp system. The tarp bar is fixed to the tarp a significant distance from the drive bar and is not motorized or otherwise powered, and is preferably attached only to the tarp material, parallel to the length of the tarp and the bed/trailer. The tarp bar is recessed or otherwise-concave along its length to allow cradling of, and hence parallel orientation of, an already-rolled portion of the tarp. The tarp bar is preferably broader than said already-rolled portion, so that two opposing edges of the tarp bar extend out beyond the diameter of the already-rolled portion so that the combination of the already-rolled portion received in the tarp bar is a non-cylindrical unit. Subsequent rolling-up of the tarp tends to occur in incremental, partial-rotation steps in a cam-like action that maintains more consistent tension all along the length of the tarp, to form a tighter and more even roll along the entire length of the roll. | 02-11-2010 |
