Crawler-type lower machinery

Details Crawler-type lower machinery Crawler-type lower machinery

1980-08-29

1982-04-13

Peters, Jr., Joseph F.

Motor vehicles

Special driving device

Portable track

180 92R, 180 41, 280 6H, B62D 5500

Patent

active

043243045

ABSTRACT:
A crawler-type lower machinery comprises a pair of crawlers, left and right, a main frame and a rocking beam both connecting the two crawlers together, an intermediate frame connecting the main frame with the rocking beam, a table mounted on the main frame, and two groups of lift means arranged at right angles to each other, one group being located between the main frame and the table and the other between the intermediate frame and the main frame. When traveling, the two crawlers are able to pitch and sway, independently of each other, along the ups and downs of the ground. The lift means are operable so that the inclination of the table with respect to the crawler-bearing ground surface can be adjusted in every direction.

REFERENCES:
patent: 2121189 (1938-06-01), Dorward
patent: 3117647 (1964-01-01), Polko
patent: 3184867 (1965-05-01), Symmank

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