PIVOTABLE BEARING SKATE AND PIVOTABLE BEARING SKATE EXTENDABLE CARGO BED FRAME ASSEMBLY

摘要

A bearing skate system for an extendable cargo bed frame assembly is provided to improve the performance of the cargo bed frame assembly. The bearing skate system has a plurality of pivotable bearing skates and each bearing skate has a pivotable skate plate having a plurality of rotating main bearings distributed along the skate plate between each side of a pivot axis of said skate plate to allow a plurality of said rotating main bearings of each skate plate to participate in supporting the cargo bed frame assembly and a cargo load on the cargo bed frame assembly when the assembly is in a closed position, in an open position, and in all intermediate positions between the closed position and the open position during extension or retraction of the cargo bed frame assembly.

主权项

1. An extendable cargo bed frame assembly [140] for a motor vehicle comprising
an anchor frame [104] attached to a floor of the cargo area of said motor vehicle; and said anchor frame having a pair of coaxial end anchor frame stub axles [42] attached transversely at the end extending outwardly from said motor vehicle of said anchor frame to extend outwardly from one another and selectively spaced parallel from a pair of coaxial intermediate anchor frame stub axles [44] attached to selected intermediate portions of said anchor frame to extend outwardly from one another, and having a pair of anchor frame end pivotable bearing skates each having a plurality of rotating main bearings and having a pair of anchor frame intermediate pivotable bearing skates each having a plurality of rotating main bearings, each said skate pivotally mounted respectively to one of said anchor frame stub axles; and an intermediate transfer frame [12] having two spaced and parallel transfer frame slide rails [14] held in parallel spaced relationship to each other, each of said slide rails having an inner anchor frame pivotable bearing skate channel [18] for operatively receiving said plurality of rotating main bearings of each of said anchor frame pivotable bearing skates and having at the ends of each of said anchor frame pivotable bearing skate channel, means for stopping the travel of said rotating main bearings of said anchor frame pivotable bearing skates, and each of said slide rails further having, on the opposite side from said anchor frame pivotable bearing skate channel, an outer cargo frame pivotable bearing skate channel [20] for operatively receiving a plurality of rotating main bearings of each of a plurality of cargo frame pivotable bearing skates, and having at the ends of each of said cargo frame pivotable bearing skate channels, means for stopping the travel of said rotating main bearings of said cargo frame pivotable bearing skates; and each pivotable bearing skate channel sized to rotatably and operatively receive a plurality of rotating main bearings and with one said pivotable bearing skate channel on each side of said slide rail; and a cargo frame [122] having two spaced and parallel cargo frame side rails [24] held in parallel spaced relationship to each other; and a pair of coaxial end cargo frame stub axles [46] attached transversely at the end extending inwardly to said motor vehicle of said cargo frame to extend inwardly towards one another and selectively spaced parallel from a pair of coaxial intermediate cargo frame stub axles [48] attached to selected intermediate portions of said cargo frame to extend towards one another, and having a pair of cargo frame end pivotable bearing skates each having a plurality of rotating main bearings and having a pair of cargo frame intermediate pivotable bearing skates each having a plurality of rotating main bearings, each said skate pivotally mounted respectively to one of said cargo frame stub axles.