A friction wheel includes a ring and bearing assembly, the friction ring extending from opposite sides of the bearing and having an inner facing surface; a hub surrounding an inner passage sized for receipt of the ring and bearing assembly, and the hub including an annular lip extending therefrom on opposite sides of the hub; at least one cap having an annular rim sized and configured for secured attachment to the annular lip, and each cap including an annular sleeve extending therefrom, and wherein the ring is sized for engaged receipt of the annular sleeve; raised elements on the annular sleeve sized and configured for a friction fit against the inner facing surface of the ring; and wherein relative rotation between the at least one cap and the ring requires a force sufficient to overcome the friction fit between the raised elements and the inner facing surface of the ring.
Friction Wheel for a Shopping Cart
2015-12-10
Patent
Electronic Resource
English