Hydraulic actuator for parallel auxiliary leaf springs

Details Hydraulic actuator for parallel auxiliary leaf springs Hydraulic actuator for parallel auxiliary leaf springs

1991-05-07

1992-07-14

Halvosa, George E. A.

Spring devices

Vehicle

Leaf

267265, 280718, B60G 1102, B60G 1110

Patent

active

051296330

ABSTRACT:
Selectively engagable auxiliary leaf springs (38 or 138) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of the auxiliary springs (38) are pivotally attached. In two other embodiments, one end (138a) of the auxiliary leaf springs (142) is pivotally attached and the other end (138b) is rigidly affixed in cantilever fashion. Actuators (56, 139 or 159) are employed to selectively enable or increase load supporting of the auxiliary leaf springs.

REFERENCES:
patent: 1362037 (1920-12-01), Peterson
patent: 2079314 (1937-05-01), Collier
patent: 2580975 (1952-01-01), Tea
patent: 2632639 (1953-03-01), Proske
patent: 2714003 (1955-07-01), Focht
patent: 2825578 (1958-03-01), Walker
patent: 2826407 (1958-03-01), Scheublein, Jr. et al.
patent: 3197231 (1965-07-01), Holzman
patent: 3288456 (1966-11-01), Paiolelli et al.
patent: 3484091 (1969-12-01), Draves
patent: 3869140 (1975-03-01), Allison
patent: 4433833 (1984-02-01), Tabe et al.
patent: 4456232 (1984-06-01), Shinbori et al.

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