Motor vehicles – With means for promoting safety of vehicle – its occupant or... – Responsive to engagement of portion of perimeter of vehicle...
Patent
1984-02-13
1986-01-28
Mitchell, David M.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
Responsive to engagement of portion of perimeter of vehicle...
280703, 280777, 293132, 296 352, B60R 2100
Patent
active
045665559
ABSTRACT:
A safety system for a vehicle, which has a chassis with two parallel spaced-apart horizontal legs, and an axle assembly for each wheel, includes a suspension assembly with at least one cylinder, and an air piston reciprocally movable in the cylinder, the cylinder pivotably connected to the chassis and the air piston connected to one of the axle assemblies. The cylinder is formed with at least one air excape opening. A valve is provided for selectively opening and closing the air escape opening so as to permit or arrest the air piston arrestor in the cylinder, and to maintain it in a relatively rigid, non-compressible state when the air escape opening is closed. A resilient spring biases the valve to the open position, and means are provided for activating the valve. At least one bumper assembly is provided, which includes a short stroke retractable bumper slidably mounted on the chassis for movement between a normal, extended position and a retracted position, a pair of generally parallel, spaced-apart hollow support arms, each of which may be mounted on one of the chassis legs, and a pair of generally parallel, spaced-apart rods connected to the bumper, each of which is telescopically received in a corresponding one of the hollow support arms.
REFERENCES:
patent: 4143735 (1979-03-01), Schlanger
patent: 4411334 (1983-10-01), Schlanger
patent: 4413702 (1983-11-01), Schlanger
Hill Mitchell J.
Mitchell David M.
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