Tractor-scraper units with push-pull coupling including two-way

Details Tractor-scraper units with push-pull coupling including two-way Tractor-scraper units with push-pull coupling including two-way

1975-03-20

1977-04-19

Stouffer, Richard T.

Land vehicles

Wheeled

Articulated vehicle

280477, 267138, B60D 104

Patent

active

040184528

ABSTRACT:
A push-pull coupling for tandem earthmoving scrapers is disclosed wherein the coupling may be rapidly connected or disconnected, thereby permitting the scrapers to operate either in unison or separately. A push block having a pulling hook projecting therefrom is mounted on the rear of a forward scraper, while a push block and a bail for engaging the hook are mounted on the front of a rearward scraper. Furthermore, at least two sets of two-way shock absorber assemblies which can absorb the shock loads caused in the course of the pushing or pulling operations are respectively connected between the push block of the rearward scraper and a reinforcing member fixedly secured to the front thereof.

REFERENCES:
patent: 3243203 (1966-03-01), Hermiz et al.
patent: 3547426 (1970-12-01), Hart et al.
patent: 3606388 (1971-09-01), Campbell
patent: 3819206 (1974-06-01), Aarons et al.

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