초록 ▼

An undercarriage structure for a track-type vehicle has first and second spaced apart roller frame assemblies which are interconnected by a pivot shaft and an equalizer bar. The first and second roller frame assemblies are so arranged with respect to the pivot shaft and the equalizer bar that the ro

An undercarriage structure for a track-type vehicle has first and second spaced apart roller frame assemblies which are interconnected by a pivot shaft and an equalizer bar. The first and second roller frame assemblies are so arranged with respect to the pivot shaft and the equalizer bar that the roller frame assemblies are substantially non-parallel to each other. This non-parallelism produces either “toe-out”or “toe-in”of the roller frame assemblies, which results in the endless track contacting the track rollers in different areas as the vehicle travels in forward and then reverse directions. The wear life of the endless track is thereby prolonged.

대표청구항 ▼

A track-type vehicle having an undercarriage structure, including first and second spaced apart roller frame assemblies; a pivot shaft extending between and connected to said first and second roller frame assemblies, and an equalizer bar extending between and supported by said first and second rolle

A track-type vehicle having an undercarriage structure, including first and second spaced apart roller frame assemblies; a pivot shaft extending between and connected to said first and second roller frame assemblies, and an equalizer bar extending between and supported by said first and second roller frame assemblies; the improvement comprising: said first roller frame assembly having a first longitudinal axial centerline and said second roller frame assembly having a second longitudinal axial centerline, said first longitudinal axial centerline being substantially non-parallel with said second longitudinal axial centerline.