Parallelogram suspension assembly with brake port

A suspension assembly for supporting a vehicle chassis on a vehicle axle comprising a hanger depending from the chassis and rigidly supported thereto to form a member thereof, an axle seat spaced longitudinally from the hanger, said vehicle axle being rigidly mounted to the axle seat, the axle seat having a portion extending from the axle and toward the hanger and a portion extending from the axle and away from the hanger, a brake port bored through the axle seat for the receipt of brake components, the brake port having at least one line slot within its periphery, the brake port positioned between the extended portions of the axle seat, air springs mounted between the extended portions of the axle seat and chassis for resiliently resisting movement of the axle and axle seat during loading and unloading of the axle.

A suspension assembly for supporting a vehicle chassis on a vehicle axle comprising a hanger depending from said chassis and rigidly supported thereto to form a member thereof, an axle seat spaced longitudinally from the hanger, the vehicle axle being rigidly mounted to the axle seat, said axle seat having a portion extending from the axle and toward the hanger and a portion extending from the axle and away from the hanger, a brake port bored transversely through the axle seat adjacent the axle, the brake port having at least one line slot within its periphery, air springs mounted between the extending portions of the axle seat and the chassis, and at least two parallel rods of approximately the same length, one located above the other and each having one end pivotally mounted to said hanger and its other end pivotally mounted to the portion of said axle seat extending toward the hanger.

A suspension assembly for supporting a vehicle chassis on a vehicle axle comprising a hanger depending from said chassis, an axle seat spaced longitudinally from the hanger, the vehicle axle being rigidly mounted to the axle seat, a brake port bored transversely through the axle seat for receipt of brake components, the brake port having at least one line slot within its periphery, an air spring mounted between the axle seat and chassis for resiliently resisting movement of the axle and axle seat during loading and unloading of the axle, and at least one torque rod connecting the axle seat to the hanger.