Fifth-wheel assembly

Details Fifth-wheel assembly Fifth-wheel assembly

1984-05-21

1986-09-30

Mitchell, David M.

Land vehicles

Wheeled

Articulated vehicle

116 4, 280407, 280477, 307 10R, 340 70, B62D 5308

Patent

active

046143556

ABSTRACT:
A slidable fifth-wheel assembly permitting the relative positions of a tractor and its associated trailer to be adjusted includes switching means which activates an alarm in the cab of the tractor when the fifth-wheel reaches a desired position. This desired position is a trade-off between rear axle weight and drive axle weight. The switching mechanism includes a switch mounted on the base plate of the fifth-wheel assembly. The actuator arm of the switch is extended by means of a coil spring which is engaged and displaced by the coupling shoe of the fifth-wheel assembly.

REFERENCES:
patent: 2387625 (1945-10-01), Walther et al.
patent: 3424107 (1969-01-01), Rollins
patent: 3494632 (1970-02-01), Bostrom
patent: 3535679 (1970-10-01), Connors
patent: 4237446 (1980-12-01), Roberts
patent: 4429892 (1984-02-01), Frampton et al.
patent: 4432563 (1984-02-01), Pitcher

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