Motor vehicles – Special driving device – Portable track
Patent
1994-08-19
1998-05-19
Boehler, Anne Marie
Motor vehicles
Special driving device
Portable track
180 91, 305129, 305138, B62D 5500, B62D 5514
Patent
active
057525749
ABSTRACT:
An undercarriage structure for a track-type machine has first and second spaced apart track roller frame assemblies which are positioned adjacent and parallel to the longitudinally extending centerline of the machine. A plurality of first and second track guiding rollers are connected to the respective roller frame assemblies and the axis of rotation of each guide roller is substantially non-perpendicular to the longitudinally extending centerline. This arrangement produces either "toe-out" or "toe-in" of the guide rollers, which results in the links of the track chain assembly contacting the track rollers in different areas as the machine travels in forward and then reverse directions. The wear life of the undercarriage structure is thereby prolonged.
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Boehler Anne Marie
Caterpillar Inc.
Perry William C.
White Claude F.
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