Abstract:
A brake torque plate and an installation method for fixedly attaching the plate to an axle tube, includes the plate formed with an opening and a continuous cut extending between the plate peripheral edge and the opening, wherein the diameter of the opening is smaller than that of the axle tube. The cut enables the torque plate to be temporarily expanded for installation on the axle tube by spreading means until the bore diameter is larger than that of the axle tube. Upon mounting of the torque plate on the axle tube, the spreading means is removed to reduce the diameter of the opening, thereby creating an interference fit between the torque plate and the axle tube and minimizing or eliminating the gap between the plate opening and the axle tube to ensure perpendicularity between the axle tube center line and the torque plate inboard and outboard faces.
Abstract:
A bushing is shown to include a barpin (52) having an anti-walkout feature in the form of a flange (56) integrated therewith. The flange extends radially outwardly and circumferentially about the elongated body of the barpin.
Abstract:
A stamped and folded steel sheet blank formed anti-lock braking system tone ring teeth monitoring sensor positioning bracket (10) is positioned by welded to vehicle axle positioning feet (22) at axle contacting foot edges (23). Bracket (10) includes a tubular portion (11) with sensor retaining sleeve holdable continuous opening (15). A pair of spaced apart rear legs (12) extend generally sidewardly downward from tubular portion (11) to the spaced apart parallel rearwardly extending feet (22).
Abstract:
A fabricated vehicle axle is shown to include a main body having an inverted U-shaped configuration. The fabricated vehicle axle further includes a continuous bottom plate welded to the main body. The fabricated axle also includes a first king pin top plate having a reversed curved fork portion welded to the main body at one end thereof. Similarly, the fabricated vehicle axle includes a second king pin top plate having a reversed curved fork portion welded to the main body at an opposite end thereof. Still further, the fabricated vehicle axle includes a first gooseneck part welded to the first king pin top plate and the first end of the bottom plate. Similarly, the fabricated vehicle axle includes a second gooseneck part welded to the second king pin top plate and the second end of the bottom plate.
Abstract:
A non-torque reactive air suspension exhibiting excellent roll stability characteristics is shown to include frame hangers mounted to frame rails extending longitudinally on opposite sides of a vehicle. Longitudinally extending beams are connected to the frame hangers at one end and extend parallel to the frame rails. At their other ends, the beams are joined by a crossbrace extending laterally across the vehicle centerline. In a central portion thereof, the beams have an axle pivot bore to which an axle clamp assembly is connected, the axle clamp assembly clamping a drive axle housing for the vehicle. The axle pivot bore is generally aligned with the drive axle. A control rod assembly is connected to suspension or frame components. Together with the beams, the control rod assembly forms a parallelogram configuration wherein the beams form the lower linkages of that configuration and the control rods included within the control rod assembly form the upper linkages of that configuration.
Abstract:
A movable subframe for tractor-trailers, commonly referred to as a slider, includes a retractable pin mechanism having improved locking pins (149) for locking the movable subframe in a selected position relative to the tractor-trailer body. The improved pin includes a tapered or truncated conical-shaped portion (151) which nests in a tapered enclosure (164) when the pins are in the fully extended or locked position. When one or more of the pins of the retractable pin mechanism become jammed in the locked position due to slight misalignment between the respective slider and trailer body openings through which each pin extends when in the locked position, a generally uniformly distributed contact surface pressure exists between the truncated conical-shaped portion (151) of the pin and the tapered enclosure. Other parts of the pin are subjected to relatively intense contact point pressures. Such pressures in turn cause shear forces which resist retraction of the jammed pins. However, a vehicle operator attempting to free the pins needs only to slightly retract the pin mechanism and clearance is created between the tapered portion of each jammed pin and the tapered enclosure, much like pulling two tapered cups apart when one is stored within the other. Once clearance occurs, the areas of contact point pressure on the pin at other locations also are relieved. The retraction of the jammed pins of the present invention is achieved without overexertion on the part of the vehicle operator and/or damage to the retractable pin mechanism.
Abstract:
A sensor system for actuating the lifting of a steerable axle (20) of a wheeled vehicle (10) includes at least one proximity switch (62) mounted on a first structure of the wheeled vehicle and at least one magnet (66) mounted on a second structure of the wheeled vehicle, wherein at least one of the first ( 54, 82) and second (58, 90) structures pivots relative to the other structure. When at least one of the first (54, 82) and second (58, 90) structures moves to a predetermined position relative to the other structure, the at least one proximity switch (62, 94) and the at least one magnet (66, 102) are aligned in close proximity, thereby activating the proximity switch (62, 94) to, in turn, actuate a lift mechanism for the steerable axle (20) .
Abstract:
A distributed compliance air-ride axle/suspension system includes an integral structure preferably formed of a lightweight composite material, replacing traditional beams and an axle. The composite structure includes a plurality of plates of various sizes and shapes, with the size, shape and arrangement of the plates being determined by the load capacity model of a specific vehicle application. Traditional axle spindle ends are mounted on the integral plate structure, together with pivot bushings, air springs, and shock absorbers, to complete the air-ride axle/suspension system. The system in turn is pivotally mounted on frame brackets of a heavy-duty vehicle such as a semi-trailer or dump truck. Forces, loads and/or stresses imposed on the axle/suspension system during vehicle operation are distributed generally throughout the composite structure to achieve the desired structural roll compliance of the axle/suspension system for the particular application.
Abstract:
A shackle assembly (66) includes a shackle bracket (68), wear pads (76,78), a shackle stop (92), shackle plates (69,70) and elastomer bushings (72,80). Shackle bracket (68) includes legs (88,90)forming portions thereof. Elastomer bushing (72,80) preferably includes voids vertically separated with respect to each other and the elastomer layer (97) preferably has a bowtie-shaped configuration. First redundancy feature has shackle stop (92) secured between the shackle plates (69,70). Shackle stop (92) provides longitudinal control of axle (53) in the event the opposite limb of the leaf spring (44) is broken, the vehicle is generally traveling in a given direction and the vehicle is subject to deceleration. Second redundancy feature has fingers (84,86) forming portions of the shackle plates (69,70), which provides longitudinal control of axle (53) under the same conditions, but when the vehicle is generally traveling in an opposite direction.