Trailing arm suspension with lever arm

Land vehicles – Wheeled – Running gear

Patent

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Details

180209, B62D 6112, B60G 900, B60G 1156

Patent

active

055886655

ABSTRACT:
A retractable suspension (10) comprises a trailing arm (22) pivotally mounted to a vehicle frame (12), an air spring (30) mounted between the trailing arm and the frame, and a lifting device (32) mounted between the trailing arm and the frame. The lifting device (32) comprises a strut (60) pivotally mounted between the frame (12) and a lever arm (64) that is fixedly mounted to the trailing arm (22). The strut (60) applies a force to the lever arm (64) that imparts a moment to the trailing arm (22) to urge the trailing arm and attached wheels (14) to a retracted position. The force of the air spring (30) can be adjusted to counter the upward movement of the wheels (14).

REFERENCES:
patent: 3674249 (1972-07-01), McGee
patent: 3771812 (1973-11-01), Pierce et al.
patent: 4166639 (1979-09-01), Taylor
patent: 4293145 (1981-10-01), Taylor
patent: 4634141 (1987-01-01), Hagan et al.
patent: 5058916 (1991-10-01), Hicks
patent: 5058917 (1991-10-01), Richardson
Reimpell, Jornsen, "Fahrwerktechnik: Stross-und Swingunasdampfer" 1989, Vogel Verlag, Wurzburg pp. 12-17.

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