Attachment apparatus

Apparatus for releasably attaching a wheel assembly to a wall of a container, said container having standardized corner fittings in each corner, each standardized corner fitting having openings, the apparatus comprising,

• a frame having a transverse beam with openings adjacent opposite ends of said beam substantially alignable with the openings in the standardized corner fittings of the container wall, said transverse beam including means for connection with a wheel assembly, said frame further comprising a pair of vertical beam assemblies each vertical beam assembly connected with and extending upwardly from the transverse beam adjacent to the transverse beam opening, the upper ends of each vertical beam assembly including means for releasable connection with a standardized corner fitting wherein each vertical beam assembly comprises a pair of vertical end beams fixedly connected to said transverse beam, and a pair of swingable beams hingedly connected to said vertical end beams, said swingable beams movable from a first position, in alignment with said vertical end beams, to a second position substantially parallel with said transverse beam,
• securing means for releasably securing said transverse beam to said container when said transverse beam openings are substantially aligned with said standardized corner fittings, said securing means comprising a cylindrical shaft threaded at one end and having an enlarged end portion at its opposite end, the enlarged end portion insertable through the openings in said standardized corner fitting, said threaded end of said shaft extending rearwardly from the transverse beam, a nut threaded to said threaded end, and rotating means for rotating said cylindrical shaft to orient the enlarged end portion into a blocking position to prevent removal of the enlarged end portion from the standardized corner fitting.

Apparatus for releasably attaching a wheel assembly to a body unit having standardized corner openings thereon, the apparatus comprising:

• a frame adapted to be connected with the wheel assembly for coupling the wheel assembly to the body unit, said frame including a transverse beam having at least two openings substantially alignable with the standardized corner openings, a pair of vertical end beams extending upward from opposite ends of said transverse beam, a second pair of vertical beams extending upward from said transverse beam between the pair of vertical end beams, each of said pair of vertical end beams having swingable beams hinged thereto for swinging from a first position, in alignment with said pair of vertical end beams, to a second position substantially parallel to said transverse beam, wherein said swingable beams are lockable to the second pair of vertical beams;
• securing means for releasably securing said frame with said standardized corner openings, said securing means comprising a shaft having an enlarged end portion, the enlarged end portion insertable through the standardized corner openings, rotating means for rotating said shaft to orient the enlarged end portion in a blocking position to prevent removal of the enlarged end portion from the standardized corner openings, tensioning means for tensioning the shaft with respect to the body unit, and locking means for preventing rotation of said shaft from its blocking position.