Abstract: A vehicle suspension is provided, including an axle having an axle body with an exterior surface, a main trailing arm shell portion having a first axle engagement surface configured for engaging a first portion of the exterior surface, and a second trailing arm shell portion having a second axle engagement surface configured for engaging a second portion of the exterior surface. Upon assembly to the axle, the main trailing arm shell portion and the second trailing arm shell portion engage more than 180° of a curvature of the exterior surface.

Abstract: An air spring actuated slider pin release system for a semi-trailer slider includes an actuator shaft oriented to extend in generally parallel relationship to at least one of a pair of parallel main members, being connected to the slider for axial rotation, and having a transverse lever arm secured to each end of the shaft for common rotation. Each lever arm has an end connected to a retractable, biased lock pin via a link so that rotation of the shaft and the lever arms causes retraction of the associated lock pin relative to the main member. The actuator shaft has a normally projecting air spring bracket. An air spring is disposed between one of the main members and the air spring bracket so that inflation of the air spring acts on the air spring bracket, axially rotating the shaft and the lever arms for retracting the lock pins.

Abstract: An air spring actuated slider pin release system for a semi-trailer slider includes an actuator shaft oriented to extend in generally parallel relationship to at least one of a pair of parallel main members, being connected to the slider for axial rotation, and having a transverse lever arm secured to each end of the shaft for common rotation. Each lever arm has an end connected to a retractable, biased lock pin via a link so that rotation of the shaft and the lever arms causes retraction of the associated lock pin relative to the main member. The actuator shaft has a normally projecting air spring bracket. An air spring is disposed between one of the main members and the air spring bracket so that inflation of the air spring acts on the air spring bracket, axially rotating the shaft and the lever arms for retracting the lock pins.

Abstract: An air spring actuated slider pin release system for a semi-trailer slider includes an actuator shaft oriented to extend in generally parallel relationship to at least one of a pair of parallel main members, being connected to the slider for axial rotation, and having a transverse lever arm secured to each end of the shaft for common rotation. Each lever arm has an end connected to a retractable, biased lock pin via a link so that rotation of the shaft and the lever arms causes retraction of the associated lock pin relative to the main member. The actuator shaft has a normally projecting air spring bracket. An air spring is disposed between one of the main members and the air spring bracket so that inflation of the air spring acts on the air spring bracket, axially rotating the shaft and the lever arms for retracting the lock pins.

Abstract: A trailer slider suspension including a tubes and wires support system. The slider includes a frame slideably coupled to and supporting a trailer. Axles are pivotally secured to the frame. Air springs are provided between the axles and stop plates on the frame. The air springs include bearing plates abutting the stop plates. The bearing plates include fasteners which extend through corresponding holes in the stop plates. Supporting brackets are secured to the frame with the bearing plates fasteners extending through corresponding securement holes in the brackets and nuts threadingly received thereon, thereby clamping the brackets between the nuts and stop plates. The brackets include support holes wherethrough the tubes and wires are received and supported. A main brace is secured between the stop plates and the frame and side braces are secured between the stop plates and the main brace. The brackets include walls or slots engaging the braces.

Abstract: An air spring actuated slider pin release system for a semi-trailer slider includes an actuator shaft oriented to extend in generally parallel relationship to at least one of a pair of parallel main members, being connected to the slider for axial rotation, and having a transverse lever arm secured to each end of the shaft for common rotation. Each lever arm has an end connected to a retractable, biased lock pin via a link so that rotation of the shaft and the lever arms causes retraction of the associated lock pin relative to the main member. The actuator shaft has a normally projecting air spring bracket. An air spring is disposed between one of the main members and the air spring bracket so that inflation of the air spring acts on the air spring bracket, axially rotating the shaft and the lever arms for retracting the lock pins.

Abstract: A vehicle suspension is provided, including an axle having an axle body with an exterior surface, a main trailing arm shell portion having a first axle engagement surface configured for engaging a first portion of the exterior surface, and a second trailing arm shell portion having a second axle engagement surface configured for engaging a second portion of the exterior surface. Upon assembly to the axle, the main trailing arm shell portion and the second trailing arm shell portion engage more than 180° of a curvature of the exterior surface.

Abstract: A trailer slider suspension including a tubes and wires support system. The slider includes a frame slidably coupled to and supporting a trailer. The frame includes a cross brace including a pair of overlapping straps to resist twisting. A rotatable shaft is coupled to pins on the frame which are thereby selectively retractable and extendable into the trailer whereby the frame can be moved and fixed along the trailer. Supporting brackets are provided including a central portion and left and right arms extending therefrom. A shaft hole is provided in the central portion and straps openings are provided in each of the arms. The bracket is secured to the frame at a distance from the straps overlap with the rotatable shaft extending through the shaft hole, one of the straps extending through the left arm strap opening and the other strap extending through the right arm strap opening.

Abstract: A trailer slider suspension including a tubes and wires support system. The slider includes a frame slidably coupled to and supporting a trailer. The frame includes a cross brace including a pair of overlapping straps to resist twisting. A rotatable shaft is coupled to pins on the frame which are thereby selectively retractable and extendable into the trailer whereby the frame can be moved and fixed along the trailer. Supporting brackets are provided including a central portion and left and right arms extending therefrom. A shaft hole is provided in the central portion and straps openings are provided in each of the arms. The bracket is secured to the frame at a distance from the straps overlap with the rotatable shaft extending through the shaft hole, one of the straps extending through the left arm strap opening and the other strap extending through the right arm strap opening.

Abstract: A trailer slider suspension including a tubes and wires support system. The slider includes a frame slideably coupled to and supporting a trailer. Axles are pivotally secured to the frame. Air springs are provided between the axles and stop plates on the frame. The air springs include bearing plates abutting the stop plates. The bearing plates include fasteners which extend through corresponding holes in the stop plates. Supporting brackets are secured to the frame with the bearing plates fasteners extending through corresponding securement holes in the brackets and bolts threadingly received thereon, thereby clamping the brackets between the bolts and stop plates. The brackets include support holes wherethrough the tubes and wires are received and supported. A main brace is secured between the stop plates and the frame and side braces are secured between the stop plates and the main brace. The brackets include walls or slots engaging the braces.

Abstract: A heavy duty suspension system for multiple axle over-the-road semi trailers. A rigid frame for the suspension includes beams on opposite sides which are connected with the trailer body. Hangers receive the front ends of spring beams to which the axles are connected. Torque arms connect the hangers with the axles. Behind the axles, air cushions are interposed between the spring beams and frame to provide an air ride. A transverse track rod is provided behind each axle to accept laterally applied loads. Each track rod is pivoted at one end to the back of one spring beam and at the other end to a track rod hanger suspended from the frame.