A tilting vehicle having a steering system actively steering a front axle and a rear axle having two wheels that can be deflected individually in a vertical manner with respect to a vehicle body and that are independent of the steering system. The wheels of the rear axle can be steered by passive steering device configured to generate a steering force because of a vertical deflection of the wheels as the vehicle body tilts to one side. The steering force causing wheels to steer towards the opposite side.

The invention concerns an axle unit, in particular for use in utility vehicles with a hydraulic or compressed air system, comprising an axle tube and an actuation unit, wherein the axle tube has a receiving opening, wherein the actuation unit has a cylinder, a piston rod and a piston, wherein the piston divides a chamber of the actuation unit into a first chamber region and a second chamber region, wherein the piston rod is in engagement with the piston and is designed such that it can be brought into engagement with a leg of the axle unit in order to transmit a force to the leg, wherein the actuation unit is arranged in the receiving opening of the axle tube and is secured against moving transversely relative to a tube axis and at least in one direction parallel to the tube axis.

An outdoor power equipment unit having a frame including at least one laterally-extending structural member and at least a pair of opposite, longitudinally-extending side structural members, a first front wheel assembly, and a second front wheel assembly. The unit also includes a first pair of substantially parallel, laterally-extending suspension arms pivotally coupled to the first front wheel assembly to form a first 4-bar linkage arrangement, and a second pair of substantially parallel, laterally-extending suspension arms pivotally coupled to the second front wheel assembly to form a second 4-bar linkage arrangement. The unit further includes at least one longitudinally-extending first side suspension arm coupled to the first front wheel assembly and to a first one of the longitudinally-extending side structural members, and at least one longitudinally-extending second side suspension arm coupled to the second front wheel assembly and to a second one of the longitudinally-extending side structural members.

A system and method for independent suspension for a mower, including a frame having a front structural member and respective side structural members, a first front wheel assembly, and a second front wheel assembly. The system also includes a first suspension arm pair having a first suspension arm and a second suspension arm, each pivotably coupled at one end to the front structural member and at another end to the first wheel front assembly such that the second suspension arm is vertically offset from the first suspension arm. The system also includes a second suspension arm pair having a third suspension arm and a fourth suspension arm, each pivotably coupled at one end to the front structural member and at another end to the second front wheel assembly such that the fourth suspension arm is vertically offset from the third suspension arm.

A knuckle for a heavy-duty vehicle self-steering axle/suspension system that includes integrally formed structure for mounting components of a drum brake system. The knuckle includes a spindle that is welded directly to the knuckle and a discrete tie rod arm bolted to the knuckle.

A steering centering/damping mechanism for a steerable heavy-duty vehicle axle/suspension system which includes a mechanically operated structure that provides a positive steering centering force to the axle/suspension system at a zero steer angle. The mechanically operated structure of the steering centering/damping mechanism also provides a positive steering centering force that increases in intensity as the steer angle of the axle/suspension system increases. In an embodiment of the steering centering/damping mechanism, the mechanically operated structure is a flat spring integrated into one or more steering assemblies of the axle/suspension system. The flat spring is in a pre-loaded condition at a zero steer angle to provide the positive steering centering force to the axle/suspension system at the zero steer angle, and is increasingly elastically deformed with increasing steer angles to provide the positive steering centering force which increases in intensity as the steer angle of the axle/suspension system increases.

A front independent suspension assembly for outdoor power equipment includes a first joint, a first wheel coupled to the joint, a first longitudinal arm pivotably coupled to the joint, a first lateral arm pivotably coupled to the joint, and a second lateral arm pivotably coupled to the joint. The second lateral suspension arranged substantially parallel to the first lateral suspension arm. The pivotal coupling between the joint and each of the first longitudinal arm, the first lateral arm, and the second lateral arm enables the first wheel to independently displace about a vertical axis

A wheel suspension (1), for a motor vehicle, having a hub carrier (2) for holding a wheel (3), a wheel-guiding link (4) for an articulated connection of the hub carrier (2) to a body (6), and a steering rod (8) for steering the wheel (3). The hub carrier (2) and the wheel-guiding link (4), for steering the wheel (3), are pivotally connected to each other such that the hub carrier (2) can be swiveled about a steering axis relative to the wheel-guiding link (4). The hub carrier (2) is directly connected to the wheel-guiding link (4), in a first connection area (20), and the hub carrier (2) is indirectly coupled to the wheel-guiding link (4), in a second connecting area (21), via an integral link (5) connected to a chassis element (12).

A suspension for a vehicle includes a pair of opposing upper and lower control arms that longitudinally locate an axle along the frame. The upper and lower control arms include first ends pivotably mounted to the ends of the axle at upper pivotable axle joints and a second lower pivotable axle joints, respectively. The upper and lower control arms include second ends that are pivotably mounted to frame hanger brackets at upper and lower pivotable hanger joints, respectively. The frame hanger bracket are laterally interposed between an upper and lower hanger joint so that an upper pivotable hanger joint is on one side of each frame hanger and a lower pivotable hanger joint is on an opposite side of the each frame hanger.

A cargo dolly having a suspension assembly incorporated therein, wherein the suspension assembly is adapted to maintain the dolly at a prescribed height relative to an underlying surface. Thus, as cargo is loaded onto the dolly, and subsequently unloaded from the dolly, the dolly will substantially remain at the same height, which facilitates use of the dolly with standardized loading docks, such as loading docks associated with aircraft.