Spring devices – Vehicle – Leaf
Patent
1989-12-26
1991-07-30
Oberleitner, Robert J.
Spring devices
Vehicle
Leaf
267260, B60G 1110
Patent
active
050354086
ABSTRACT:
Selectively engagable auxiliary leaf spings (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 each auxiliary leaf spring (138) is pivotally attached and the other end (138b) is rigidly affixed in cantilever fashion. Actuators (140 or 170) are employed to selectively enable or increase load supporting of the auxiliary leaf springs.
REFERENCES:
patent: 1114857 (1914-10-01), Campodonico
patent: 1362037 (1920-12-01), Peterson
patent: 2304780 (1942-12-01), de Fries
patent: 2825578 (1958-03-01), Walker
patent: 3430976 (1969-03-01), Vautier
patent: 3484091 (1969-12-01), Draves
patent: 3869140 (1975-03-01), Allison
Juriga James A.
Oliver James L.
Preston David M.
Walton Erlen B.
Eaton Corporation
Muratori Alfred
Oberleitner Robert J.
Rulon P. S.
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