Wheel frame for hollow foam wheel

Abstract

A wheel frame for a hollow foam wheel includes a hollow foam tire which has two opposing bulged inner rims to form a housing space therebetween, two opposing wheel frames located on two outer sides of the foam tire each having a jutting outer rim. The jutting outer rim has an inner side with spikes located thereon and an inner peripheral surface which has first ridges formed thereon. The housing space holds a plurality of retaining members assembled in an annular manner. Each retaining member has a flange on the inner rim thereof with second ridges formed on the inner peripheral surface to mate alternately the first ridges of the wheel frame. The two wheel frames are screwed towards each other to clamp the foam tire securely between the jutting outer rim and the retaining members. The spikes on the inner side of the wheel frame pierce into the foam tire for anchoring. Thus the hollow foam tire may be coupled and anchored securely and provide an improved elastic and cushion effect.

Dependencies are inferred from the claim text.