Abstract: A hauling trailer particularly suited to the transport of scrap such as crushed and flattened vehicles includes a floor with walls and one open side, and a retractable wall structure for closing off the open side during transport. The wall structure, which may be flexible, rigid, or partitioned, is preferably retracted by raising and lowering a barrier from a member supported above the open side. To provide greater access to the open side during loading, a separate mechanism is provided for raising and lowering the member independent of the wall structure. The member may, for example, form part of a generally c-shaped lid structure, with the separate mechanism moving the lid structure between a lowered and raised position.

Abstract: This invention broadly provides a trailer having a side which opens and closes to prevent the loss of material during transport. In the preferred embodiment, the trailer includes three solid or rigid sides with a fourth side that opens and closes with a drape, though in alternative configurations, two or more sides may also open and close, preferably utilizing the methods and apparatus disclosed herein. In a simple configuration, the invention utilizes a cable suspended between opposing upper points, with a curtain having upper eyelets journaled thereon, enabling the curtain to open and close so as to permit access to the trailer interior. Although this may be carried out according to the invention with an upper cable that remains affixed, in the preferred embodiments, a winch and pulley system is used to tighten the cable, and to loosen the cable for detachment purposes.