Patent ID: 8881339

Claim:
A resilient compressible roller rotatably engaged with an autonomous coverage robot, the resilient compressible roller comprising: a rigid drive shaft; a resilient tubular member having a longitudinal axis and including: an outer surface; one or more vanes extending outwardly from the outer surface; a hub disposed along the longitudinal axis of the resilient tubular member within the outer surface, the hub having one or more engagement elements formed therein for engaging securely with the rigid drive shaft; and a plurality of resilient curvilinear spokes extending between an inner surface of the resilient tubular member and the hub; wherein the one or more vanes are integrally formed with the resilient tubular member and define V-shaped chevrons, each chevron having a central tip, a first leg extending from the central tip to a first end of the resilient tubular member and a second leg extending from the central tip to a second end of the resilient tubular member.