Track-type vehicle undercarriage

Details Track-type vehicle undercarriage Track-type vehicle undercarriage

1993-11-01

1994-10-25

Hill, Mitchell J.

Motor vehicles

Special driving device

Portable track

180 91, 180 952, 180 96, 305 24, 305 56, B62D 5508

Patent

active

053580648

ABSTRACT:
An undercarriage structure for a track-type machine has first and second spaced apart roller frame assemblies which are connected to the machine by one or more pivot shafts 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.

REFERENCES:
patent: 1941011 (1933-12-01), Johnston
patent: 3825088 (1974-07-01), Copeland
patent: 3889769 (1975-06-01), Blomstrom et al.
patent: 3980149 (1976-09-01), Blomstrom et al.
patent: 4018295 (1977-04-01), Hasselbacher
patent: 4324303 (1982-04-01), Balzer et al.
patent: 5279377 (1994-01-01), Oertley

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