Foldable carrier system for transport of frangible sheet material

A trailer system with which frangible sheet material can be transported, said system comprising:

• a trailer frame including means providing a flat bed surface having two opposite side edges and a cutout opening out of at least one side edge of the flat bed surface;
• a side section providing a substantially planar bed surface section facing in one direction and which is hingedly connected to the trailer frame adjacent the cutout for pivotal movement relative to the trailer frame between a first position at which the surface section is positioned within the cutout so that the bed surface section faces upwardly and is substantially co-planar with the bed surface and a second position at which the bed surface section overlies so as to face downwardly upon the flat bed surface of the trailer frame;
• and
• a frame structure attached to the side section for movement therewith as the side section is moved between its first and second positions and so as to extend therefrom in a direction opposite the one direction in which the bed surface section of the side section faces so that when the side section is positioned in its first position, the frame structure depends generally downwardly from the side section in an out-of-the way condition and so that when the side section is positioned in its second position, the frame structure extends generally upwardly from the flat bed surface for supporting frangible sheet material in a near-vertical orientation for transport.