Land vehicles: wheels and axles – Wheel – Skate wheel
Patent
1982-09-20
1984-08-14
Scherbel, David A.
Land vehicles: wheels and axles
Wheel
Skate wheel
301 62, 301 32, 305 7, 308 53, 308203, B60B 1900, B60C 700, B60C 1900
Patent
active
044653212
ABSTRACT:
Portable collapsible spokeless wheels are formed with a rotating circular wheel rim element defining a full circle and without a central axle, hub, or spokes. The wheel rim element is formed around its outer periphery with a land portion or tread portion for bearing against the ground. The wheel rim element fits within a fender rim element which defines only a portion of a circle but greater than a half circle. At least three sets of rollers or casters are distributed around the inner surface of the fender rim element for bearing against and within a groove formed around the wheel rim. The rollers or casters are complementary with the groove portion of wheel rim element and are spaced apart to define an arc greater than a half circle. The fender rim element is further provided with braces which tie the ends of the fender rim element together and constrain the wheel rim element into a circular arch for bearing the weight of a load in compression rather than in suspension or tension. The portable collapsible wheel is used in recreational and utilitarian applications such as carts, carriers, and wheelbarrows.
REFERENCES:
patent: 253098 (1882-01-01), Prosser
patent: 3329444 (1967-07-01), Lidov
patent: 3368822 (1968-02-01), Treiber
patent: 4045096 (1977-08-01), Lidov
Kane, Jr. Daniel H.
Scherbel David A.
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