Snowplow blade with spring-loaded edge flaps

Details Snowplow blade with spring-loaded edge flaps Snowplow blade with spring-loaded edge flaps

1984-06-18

1987-01-13

Burr, Edgar S.

Excavating

Snow or ice removing or grooming by portable device

Vehicle mount with obstacle responsive trip, or yieldable tool

172705, 172816, E01H 504

Patent

active

046353879

ABSTRACT:
A snowplow with a blade having a lower edge to which several spring flaps are hingeably linked. Reset springs retain the spring flaps in their working positions, and return the spring flaps to their working positions after having been deflected. To prevent overload of the reset springs, each is supported to be movable in the same sense as the pivoting direction of the associated spring flap, so that the increase in spring force, while the spring flap is being deflected, is at least partially counteracted.

REFERENCES:
patent: 2055291 (1936-09-01), Henry
patent: 3158944 (1964-12-01), Rehberg et al.
patent: 3429059 (1969-02-01), Reissinger
patent: 3760882 (1973-09-01), Geurts
patent: 4074896 (1978-02-01), Eftefield

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