Steering system for tractor-trailer units

Details Steering system for tractor-trailer units Steering system for tractor-trailer units

1986-05-15

1987-10-27

Love, John J.

Land vehicles

Wheeled

Articulated vehicle

B62D 1302

Patent

active

047024887

ABSTRACT:
A system for controlling turning of the trailer of a tractor-trailer unit comprising a cam which is supported on and fixed to the fifth wheel hitch member of the tractor and is engageable with cam followers mounted on a pivotable cam lever secured to the trailer frame. The cam lever includes opposed cam followers engageable with the cam and for actuating opposed traces of a flexible cable which extend along the trailer frame and are secured to a pulley mounted on a pivotable rear axle bogie of the trailer. In response to turning movements of the tractor, the trailer bogie follows a track or path through the turn which is approximately the same path as the tractor. The cam is configured so that on backing the trailer the bogie remains fixed in a non-turning position relative to the trailer frame.

REFERENCES:
patent: 3195922 (1965-07-01), Homes
patent: 3533645 (1970-10-01), Newberry
patent: 3591203 (1971-07-01), Steiner
patent: 3930669 (1976-01-01), Kollander
patent: 4244596 (1981-01-01), Chung
patent: 4570965 (1986-02-01), Caswell

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