Vehicle plow-suspension shock-absorber

Details Vehicle plow-suspension shock-absorber Vehicle plow-suspension shock-absorber

1990-02-20

1990-08-14

Taylor, Dennis L.

Excavating

Snow or ice removing or grooming by portable device

With specific means to facilitate connection to, or...

37235, E01H 506

Patent

active

049475630

ABSTRACT:
In a preferred embodiment, in the line of suspension of a snow plow when suspended during transit of a motor vehicle having the plow mounted typically on the front frame and bumper thereof, a shock attenuating device typically inclusive of a helical spring arranged to be compressed responsive to intermittent increased stress results from downward surges of the large mass of the snow plow and/or upward movement of the vehicle resulting from vehicular movement over bumps or other rough terrain, with the shock attenuating device being operatively connected in series with between upper and lower chains, the upper chain having its upper end connected to a vehicularly-mounted chain-retraction and extension mechanism for alternately lowering and raising the snow plow to plowing position and raising the snow plow to a transporting position, and the lower chain at its lower end(s) being connected supportably to the snow plow.

REFERENCES:
patent: 4236329 (1980-12-01), Hetrick
patent: 4244122 (1981-01-01), Hetrick
patent: 4369590 (1983-01-01), Miller
patent: 4821435 (1989-04-01), Pester
patent: 4843744 (1989-07-01), Jansen
patent: 4907358 (1990-03-01), Moore

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