Patent ID: 8578984
Filing Date: 2013-11-12
Classification: B60B,B60C,Y10T

Abstract:
1. A wheel for a human-propelled cart, the wheel comprising: a housing assembly comprising a hub and a cover, having a second mating feature, the inner cavity configured to receive an electrical component, a tread assembly configured to axially receive a portion of the housing assembly, the tread assembly comprising a frame and a tread, a fastener configured to engage the second mating feature of the frame engaging surface and the first mating feature of the hub engaging surface; wherein the tread assembly is configured to removably couple with the housing assembly such that the tread assembly can be axially separated from the housing assembly without unsealing the cover and the hub, thereby facilitating repair or replacement of the tread assembly while maintaining the seal of the cover and the hub, and wherein, when the hub engaging surface of the frame is coupled with the frame engaging surface of the hub, the first mating feature and the second mating feature are circumferentially aligned such that the fastener can axially engage the first mating feature and the second mating feature.