US Patent 7134473 Anti-bow roller tube arrangement

A roller tube support mechanism includes a roller tube including a roller tube body. The roller tube is configured to support a sheet material wound around the roller tube body along a length of the roller tube body between a first end and a second end of the roller tube body. An assembly includes a first mount and a second mount opposite the first mount. The assembly is configured to support the roller tube rotatably coupled to the first mount and the second mount. A support cradle is coupled to the assembly between the first mount and the second mount. The support cradle is configured to support the roller tube along the length of the roller tube.