System for limiting relative angular movement between the tracto

Details System for limiting relative angular movement between the tracto System for limiting relative angular movement between the tracto

1990-09-14

1992-08-04

Marmor, Charles A.

Land vehicles

Wheeled

Articulated vehicle

2804411, 2804461, 2804551, B62D 5306

Patent

active

051352486

ABSTRACT:
A system and method for blocking a relative angular movement between a semi-trailer and a traction vehicle so as to limit the angular movement to a predetermined angle. A lock of a locking system in a guide plate is inserted in a central angle of a fifth wheel that supports the semi-trailer. The lock is electro-pneumatically actuated by an electric signal signifying brake actuation. This prevents an involuntary angular movement between the semi-trailer and the tractor from taking place mainly upon actuation of the brakes because of an imbalance occurring between friction forces acting on the tires.

REFERENCES:
patent: 3507517 (1970-04-01), Eagle
patent: 3722918 (1973-03-01), Connor
patent: 3837678 (1974-09-01), Cicero
patent: 3895827 (1975-07-01), Padrick
patent: 3963265 (1976-06-01), Kornoelje et al.
patent: 3972542 (1976-08-01), Dirks et al.
patent: 4067592 (1978-01-01), Horton
patent: 4068860 (1978-01-01), Meyers et al.
patent: 4934727 (1990-06-01), Hawkins

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