Suspension system for vehicles

Claim 1

A vehicle suspension system comprising a main frame, a pair of bulkheads each having a top portion fixedly connected to an opposite end portion of said main frame, a pair of sub-frames each pivotally connected to one of said bulkheads on an axis extending longitudinally of said vehicle and below said bulkhead top portion, suspension arms pivotally connected to said subframes, wheels, means for supporting said wheels, pivotally connected to said suspension arms, shock absorbers pivotally connected to said bulkhead top portions and said supporting means, said supporting means including a pair of spindles, a pair of stub axles each being attached to one of said spindles with one of said wheels being rotatably mounted on one of said stub axles, bearings for the ends of said spindles in which said spindles are rotatable, some of said suspension arms being pivotally connected to top and bottom portions of said sub-frames and pivotally connected to the top and bottom portions of said bearings, one of said bulkheads being of an inverted U-shaped configuration having said top portion and downwardly extending spaced front and rear walls, one of said sub-frames being boxlike and extending into said bulkhead between said downwardly extending walls, a shaft rotatably extending through said downwardly extending walls of said one bulkhead and said one subframe providing said pivotal support about said longitudinal axis of said sub-frame, a steering column being connected to said shaft and means connecting said shaft to said spindles for pivoting the same for steering the vehicle.