Patent ID: 7066289
Filing Date: 2006-06-27
Classification: B62D

Abstract:
1. A crawler traveling apparatus, comprising: a pair of connected track frames, a track frame on each side of the crawler traveling apparatus; a pair of wheels rotatably disposed on each track frame, a forward wheel at an end in a principal direction of apparatus movement and a backward wheel at an end opposite to the principal direction of movement; a crawler wound around each pair of wheels; at least one upper roller mounted to each track frame, each upper roller having a roller shaft and a roller body, wherein axial ends of the roller shaft of each upper roller is supported by a support receiving member secured at least on the track frame, said support receiving member is formed to be substantially reverse U-shaped comprising a separate roller supporting portion and a pair of coupling pieces, the roller supporting portion attached to and between the pair of coupling pieces, for coupling the roller supporting portion to at least the track frame, the roller supporting portion supporting an axial end of the roller shaft.