Anti-jackknifing control device

Details Anti-jackknifing control device Anti-jackknifing control device

1980-02-19

1982-07-27

Silverstrim, John P.

Land vehicles

Wheeled

Articulated vehicle

340 52R, B62D 5308, B60R 2100

Patent

active

043413951

ABSTRACT:
An anti-jackknifing control device for a tractor-trailer which includes a fifth wheel having a pair of oppositely disposed pneumatically operated cylinder-piston assemblies, the pistons of which are insertable into arcuate slots in a bottom plate on the trailer so as to limit the turning movement of the tractor relative to the trailer to a predetermined angle in either direction from a centerline corresponding to a longitudinally aligned position of the tractor-trailer together with an alarm in the driver's cab actuted by a limit switch in each of the slots which is closed by the bottom plate at a turning angle in either directon intermediate the centerline and predetermined angle.

REFERENCES:
patent: 2146145 (1939-02-01), Huffman
patent: 2213221 (1940-09-01), Johnson
patent: 2959429 (1960-11-01), Lavelle
patent: 3733090 (1973-05-01), Keller
patent: 4206829 (1980-06-01), Melocik

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