Land vehicles – Wheeled – Articulated vehicle
Patent
1977-02-04
1978-04-04
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Articulated vehicle
280432, B60D 700
Patent
active
040823091
ABSTRACT:
A sway control apparatus for a trailer comprising an electromagnetically actuated brake drum mounted horizontally on the draw bar frame of the trailer. Means are provided on the rotatable drum of the brake to which are connected ends of chain links. The other ends of the chains extend forward and connect to opposite ends of a cross bar member fixed to the hitch means directly below the hitch ball. The cross bar member and the two spaced chains connected to the brake drum form a parallelogram which is normally free to shift positions during normal driving. When swaying occurs, the sway control brake is manually actuated to fix the parallelogram in position thereby preventing or dampening the return sway. A pressure sensing device is fitted at the side of the trailer adjacent the rear thereof. The pressure sensing device will actuate a switch when air pressure is exerted on the side of the trailer sufficient to cause swaying of the trailer. This pressure switch closes a separately energized circuit to the sway control brake when the sway of the trailer is initiated by air pressure caused by passing truck vehicles. This circuit operates independently of the drivers manual control to immediately prevent initiation of the trailer sway caused by the side air pressure.
REFERENCES:
patent: 2392068 (1946-01-01), Sexton
patent: 3093213 (1963-06-01), Limoges
patent: 3497241 (1970-02-01), Jones
patent: 3807764 (1974-04-01), Watts
patent: 3862387 (1975-01-01), Phillips
patent: 3948567 (1976-04-01), Kasselmann
Leuca Walter
Peters Jr. Joseph F.
Schrecengost R.
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