Abstract: A vehicle suspension system includes a pair of suspension assemblies mounted on a pair of spaced vehicle frame members for supporting a vehicle body on the vehicle wheels. A torsion axle extends between the pair of suspension assemblies and terminates in a pair of stub shafts. The axle is mounted on a pair of spaced frame bars attached to the vehicle frame. An air spring extends between the vehicle frame and an outer end of a support arm mounted on the torsion axle. The stub shafts are supported within an outer tube of the torsion axle by a plurality of elastomeric members. One end of each stub shaft is connected to a spindle arm which has a spindle extending from an opposite end of the arm. The outer tube of the torsion axle pivotally supports the air spring support arm and the axis of the torsion axle is coaxial with the pivot axis of the air spring support arm to provide a more compact and sturdy suspension assembly.

Abstract: A vehicle suspension system includes a pair of suspension assemblies mounted on a pair of spaced vehicle frame members for supporting a vehicle body on the vehicle wheels. A torsion axle extends between the pair of suspension assemblies and terminates in a pair of stub shafts. The axle is mounted on a pair of spaced frame brackets attached to the vehicle frame. An air spring extends between the vehicle frame and an outer end of a support arm pivotally mounted on each end of the torsion axle. The stub shafts are supported within an outer tube of the torsion axle by a plurality of elastomeric members. One end of each stub shaft is connected to a spindle arm which has a spindle extending from an opposite end of the arm.

Abstract: A vehicle suspension system includes a pair of suspension assemblies mounted on a pair of spaced vehicle frame members for supporting a vehicle body on the vehicle wheels. A torsion axle extends between the pair of suspension assemblies and terminates in a pair of stub shafts. The axle is mounted on a pair of spaced frame bars attached to the vehicle frame. An air spring extends between the vehicle frame and an outer end of a support arm mounted on the torsion axle. The stub shafts are supported within an outer tube of the torsion axle by a plurality of elastomeric members. One end of each stub shaft is connected to a spindle arm which has a spindle extending from an opposite end of the arm. The outer tube of the torsion axle pivotally supports the air spring support arm and the axis of the torsion axle is coaxial with the pivot axis of the air spring support arm to provide a more compact and sturdy suspension assembly.

Abstract: A vehicle suspension system includes a pair of suspension assemblies mounted on a pair of spaced vehicle frame members for supporting a vehicle body on the vehicle wheels. A torsion axle extends between the pair of suspension assemblies and terminates in a pair of stub shafts. The axle is mounted on a pair of spaced frame brackets attached to the vehicle frame. An air spring extends between the vehicle frame and an outer end of a support arm pivotally mounted on each end of the torsion axle. The stub shafts are supported within an outer tube of the torsion axle by a plurality of elastomeric members. One end of each stub shaft is connected to a spindle arm which has a spindle extending from an opposite end of the arm.

Abstract: The present invention relates to an improved vehicle suspension system. More particularly, the present invention relates to an independent suspension system for light and medium duty trailers which utilizes a flexible bladder mounted between the vehicle frame and the axle. The flexible bladder is housed within a casing to control the flow of air into the bladder and to provide for flexible movement of the axle relative to the vehicle frame. In the preferred embodiment, the flexible bladder is a traditional break-chamber housing and multiple break-chamber housings may be utilized to increase the load-carrying capacity of the trailer.

Abstract: The present invention relates to an improved vehicle suspension system. More particularly, the present invention relates to an independent suspension system for light and medium duty trailers which utilizes a flexible bladder mounted between the vehicle frame and the axle. The flexible bladder is housed within a casing to control the flow of air into the bladder and to provide for flexible movement of the axle relative to the vehicle frame. In the preferred embodiment, the flexible bladder is a traditional break-chamber housing and multiple break-chamber housings may be utilized to increase the load-carrying capacity of the trailer.

Abstract: The present invention relates to an improved vehicle suspension system. More particularly, the present invention relates to an independent suspension system for light and medium duty trailers which utilizes a flexible bladder mounted between the vehicle frame and the axle. The flexible bladder is housed within a casing to control the flow of air into the bladder and to provide for flexible movement of the axle relative to the vehicle frame. In the preferred embodiment, the flexible bladder is a traditional break-chamber housing and multiple break-chamber housings may be utilized to increase the load-carrying capacity of the trailer.

Abstract: A tag axle assembly has a frame having a pair of hanger brackets, an upper cross tube and a lower cross tube. A pair of rocker beams having a primary pivot for pivotally mounting the rocker beam to the support frame is mounted to the frame. A suspension air spring extends between the upper cross tube and each rocker beam, and a lift air spring extends between each hanger bracket and the front end of the rocker beam. An axle seat is hingedly mounted to the rear end of each rocker beam. An upper beam having an actuator beam and a lift bar are pivotally mounted to the axle seat and to the support frame. A linear actuator extends between the support frame and the actuator beam. Inflation of the lift air spring causes the rocker beams to rotate about the primary pivots, and expansion of the linear actuator causes the actuator beam and the interconnected lift bar to raise.