초록 ▼

A split roller 150 may be removed from an axle 104 without requiring access to the axle end. A split wheel hub 152 supports a plurality of peripheral rollers 180, which may be arranged in two rows spaced along the hub axis. In a preferred embodiment, the wheel hub comprises two asymmetric hub halves

A split roller 150 may be removed from an axle 104 without requiring access to the axle end. A split wheel hub 152 supports a plurality of peripheral rollers 180, which may be arranged in two rows spaced along the hub axis. In a preferred embodiment, the wheel hub comprises two asymmetric hub halves 134, 136 which are fastened together around an axle. Each roller in the second row may be spaced circumferentially between a pair of rollers in the first row. According to the method of the invention, the hub halves are assembled, preferably with some rollers in each of the first and second rows already mounted thereon. Other rollers in each row are then mounted to the assembled hub halves.

대표청구항 ▼

[ What is claimed is:] [1.]1. A roller wheel assembly for rotation with an axle having an out-of-round cross section, comprising:a split wheel hub having at least first and second split hub parts each having inner faces which, when disposed about the axle, provide an out-of-round opening conforming

[ What is claimed is:] [1.]1. A roller wheel assembly for rotation with an axle having an out-of-round cross section, comprising:a split wheel hub having at least first and second split hub parts each having inner faces which, when disposed about the axle, provide an out-of-round opening conforming to the axle for rotating therewith about a hub axis of rotation;fasteners for releasably connecting said hub parts together, when their inner faces are disposed about the axle, whereby the hub parts rotate with the axle and the hub parts are free to be removed from the axle upon release of the fasteners;a first plurality of peripheral rollers rotatably mounted about the periphery of each said first and second hub parts, each of the first plurality of peripheral rollers having an axis or rotation spaced perpendicular to and radially from the said hub axis of rotation;a second plurality of peripheral rollers rotatably mounted about the periphery of each said first and second hub parts, each of said second plurality of rollers having an axis of rotation perpendicular to and spaced radially from the said hub axis of rotation;each of said second plurality of rollers being spaced along said hub axis from the said first plurality of rollers, andeach of said second plurality of rollers being offset circumferentially between a pair of said first plurality of roller.