Abstract: A luggage frame including two upright support rods, two brackets fastened respectively to the top end of the upright support rods, two base seats fastened respectively to the bottom end of the upright support rods, two caster mounts fastened respectively to the base seats, a top plate fastened to the two brackets, and a bottom plate fastened to the caster mounts.

Abstract: A luggage framework includes a top plate, a bottom plate, two wheel mounts, a plurality of corner connection seats, a plurality of cross rods, a plurality of corner cross rods, and a plurality of longitudinal support rods. The top plate is provided at four corners thereof with one corner connection seat, whereas the bottom plate is provided at both ends of the front side thereof with one corner connection seat. Both ends of the rear side of the bottom plate are fastened with the wheel mounts. The longitudinal support rods are located between the top plate and the bottom plate such that both ends of the longitudinal support rods are retained by the corner connection seats of the top plate, the two corner connection seats of the front side of the bottom plate, and the two the wheel mounts of the rear side of the bottom plate.

Abstract: An assembly for forming a rollable piece of luggage having a U-shaped pull rod, two fastening members, a fastening frame, two caster members, and two locating members. The pull rod has two arms each having a retaining projection for engaging the fastening frame which is fastened with the shell of the piece of luggage, in conjunction with the fastening members. Each of two caster members has a caster frame and a caster fastened pivotally with the caster frame which is in turn fastened with the fastening frame and the locating members.