Patent ID: 6514021
Filing Date: 2003-02-04
Classification: B60P,B62D

Abstract:
A T-flange engaging load bearing bed comprising:(a) a sheet having an upper load bearing surface and a lower surface, the sheet having at least a first post receiving slot, the at least first post receiving slot having a lateral dimension; (b) at least a first C-channel beam having an upwardly opening T-receiving channel, said channel having a lateral dimension, the lateral dimension of said channel being greater than the lateral dimension of the at least first post receiving slot; and, (d) attaching means, the attaching means positioning the at least first C-channel beam upon the lower surface of the sheet so that said beam's upwardly opening T-receiving channel underlies the at least first post receiving slot; the attaching means comprising fasteners selected from the group of heat fusion welds, rivets, spirally threaded bolts, spirally threaded screws, and adhesives; the at least first post receiving slot having a left and a right edge, and the at least first C-channel beam comprising left and right inwardly extending flanges, the upwardly opening T-receiving channel of said beam opening between said inwardly extending flanges, the attaching means further positioning said beam so that its left and right inwardly extending flanges underlie the sheet leftwardly from and rightwardly from the left and right edges of said slot respectively; the upper load bearing surface of the sheet comprising left and right roller receiving races, the left and right roller receiving races being respectively positioned to the left of and to the right of the at least first post receiving slot.