Patent ID: 7896364

Claim:
A roller wheel assembly, comprising: a) a support member having at least a first upper portion and a second downwardly angled portion, wherein the first upper portion is structured for enabling a coupling of the roller wheel assembly to an includable foot contacting top member; b) wherein the second downwardly angled portion is structured having a through-bore; c) a steering related structure, having a bearing-based rotatable coupling employing the through-bore provided in the downwardly angled portion, such that a side-to-side tilting of the first upper portion of the support member, with respect to a ground surface, enables course altering steering adjustments to be made based on the direction of the tilting utilized; d) wherein the bearing based rotatable coupling includes at least two axially aligned bearings, with each bearing located on an opposing side of the downwardly angled portion of the support member and seated within an opposing counter bore formed on the opposing sides of the downwardly angled portion, such that the bearings are axially aligned with the through-bore; e) a roller wheel support structure rotatably coupled to the downwardly angled portion of the support member by way of the bearing-based rotatable coupling; f) with an axis of rotation of the bearing-based rotatable coupling also downwardly angled for contributing to the enhanced tilting and steering capability of the roller wheel assembly; g) at least two spaced roller wheels which are substantially axially aligned along a common rolling axis, and rollably mounted to side walls of the roller wheel support structure; and h) a capped center shaft that passes through: i) the through-bore; ii) a center of each axially aligned bearing; and iii) a threaded hole provided in a transverse wall of the roller wheel support structure.