Land vehicles – Wheeled – Running gear
Patent
1999-03-17
1999-12-21
Mai, Lanna
Land vehicles
Wheeled
Running gear
B60G 100
Patent
active
060038853
ABSTRACT:
A vehicle suspension comprising first and second arms mountable to a vehicle frame for vertical swinging movement adjacent opposite sides of the vehicle frame, each of which mounts an axle for rotatably supporting at least one ground-engaging wheel thereon. Air springs are mounted between the arms and the frame in load-transmitting relation therebetween. An improved axle lift mechanism for lifting the axles and the at least one wheel responsive to relief of air pressure in the air springs is provided which comprises first and second telescoping guide members mountable to the frame, each of which have a distal end adapted to be positioned adjacent opposing sides of the frame and being movable between a retracted position and an extended position. A first lever mechanism is adapted to be mounted to the frame, and is mounted to the distal end of the first telescoping guide member and to the first arm. A second lever mechanism is adapted to be mounted to the frame, and is mounted to the distal end of the second telescoping guide member and to the second arm. The arms are raised with respect to the frame when the first and second telescoping guide members move between the extended and the retracted positions. A spring is mounted to the first and second telescoping guide member to bias the first and second telescoping guide members into the retracted position.
REFERENCES:
patent: 3340946 (1967-09-01), Whitehead
patent: 3771812 (1973-11-01), Pierce et al.
patent: 4497507 (1985-02-01), Chervenak
patent: 4634141 (1987-01-01), Hagan et al.
patent: 5058916 (1991-10-01), Hicks
patent: 5588665 (1996-12-01), Pierce et al.
patent: 5868418 (1999-02-01), VanDenberg
Fleming Faye M.
Mai Lanna
Neway Anchorlok International, Inc.
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