| 摘要 |
Roll-up cover apparatus for an open sided trailer box including a top rail, a flexible cover downwardly depending from the top rail, a torque tube for winding or unwinding the cover thereon, a plurality of laterally spaced straps, and one or more winches engaging the straps for placing selective tension thereon. In one embodiment the torque tube is contained below a bottom rail for placing tension on the cover itself and in a second embodiment the torque tube rest on the bottom rail with the cover defining an apron overlapping the bottom of the side opening for placement on the floor of the trailer box when hauling bulk goods and for placement over the outside of the bottom rail when hauling non-bulk goods.
|
