Bulldozer track support roller mounting

Details Bulldozer track support roller mounting Bulldozer track support roller mounting

1982-11-29

1985-02-26

Scherbel, David A.

Wheel substitutes for land vehicles

Wheel on top of upper track run

305 28, B62D 5516

Patent

active

045014523

ABSTRACT:
A bulldozer has six track support rollers mounted on the associated track frame such that the first and last rollers are more or less rigid with the frame, the two rollers respectively next to the first and last rollers are vertically shiftably mounted and biased downwardly by respective springs having a first stiffness, and the middle two rollers are vertically shiftably mounted and biased downwardly by respective second springs having a stiffness a predetermined amount less than that of the first springs.

REFERENCES:
patent: 1399370 (1921-12-01), White
patent: 1568241 (1926-01-01), Rimailho
patent: 1836446 (1931-12-01), Christie
patent: 2277855 (1942-03-01), Mercier
patent: 3826325 (1974-07-01), Purcell et al.

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