Patent ID: 8385040
Filing Date: 2013-02-26
Classification: B60B,B62B,H05F

Abstract:
1. A conductive wheel, comprising: a hub; a tread mounted on the hub; two bearings mounted in the hub and each having a axle; and an electrically conductive assembly mounted in the hub and the tread; wherein the hub has a central portion provided with an inner flange and has a periphery provided with an outer flange; the hub has a mediate portion provided with a recessed support portion which is located between the inner flange and the outer flange; the inner flange of the hub has an interior provided with an axle hole and has two opposite sides each provided with a mounting recess connected to the axle hole; the tread coats and encompasses the outer flange of the hub; each of the two bearings is mounted in the respective mounting recess of the inner flange of the hub; the axle of each of the two bearings is extended into the axle hole of the inner flange of the hub; the electrically conductive assembly includes: a contact ring; a plurality of connecting rods each connected with the contact ring; a conductive ring located outside of the contact ring; and a connecting bar connected between the contact ring and the conductive ring; each of the connecting rods of the electrically conductive assembly is extended axially along a periphery of the inner flange of the hub and is extended into and exposed from an inner wall of the mounting recess of the inner flange; each of the connecting rods of the electrically conductive assembly is in contact with the two bearings; the contact ring of the electrically conductive assembly is extended into and exposed from an inner wall of the axle hole of the inner flange; the contact ring of the electrically conductive assembly is in contact with the axle of each of the two bearings; the conductive ring of the electrically conductive assembly is embedded in the outer flange of the hub; the conductive ring of the electrically conductive assembly has a periphery provided with a plurality of projecting grounding portions; each of the grounding portions of the conductive ring is extended into and exposed from a surface of the tread; the connecting bar of the electrically conductive assembly is extended through the support portion of the hub and is extended into the outer flange of the hub.