A hydropneumatic suspension system for vehicles, at least consisting of an axle suspension (10) and a cabin suspension (12), which for supplying them with pressurized fluid, can be connected to a pressure supply source, is characterized in that both the axle suspension (10) and the cabin suspension (12) can be actuated jointly by means of an control device (14), and in that, by means of a priority detection system (16) involving a sensor device (18) for the respective suspension (10, 12), the supply with pressurized fluid of the one suspension (10, 12) takes precedence depending on demand over the other suspension (12, 10).

A spring-damper system includes at least a differential cylinder (4), a hydraulic accumulator (26) and a control valve device (1, 2). By at least one motor-pump unit (22), pressure fluid can be supplied to the annular end (6) or both the annular end (6) and the piston end (8) of the differential cylinder (4) in a closed circuit using the control valve device (1, 2).

A suspension mechanism has a tube member that is movably attached to an attachment shaft, a first attachment shaft retaining member provided on the chassis to swingably retain the attachment shaft with an outer peripheral surface of the tube member abutted on its inside surface, a shaft lower end portion of slip surface shape provided at lowermost part of the attachment shaft, a second attachment shaft retaining member provided on the chassis below the first attachment shaft retaining member and having a vertex equivalent section and a curve equivalent section to retain the attachment shaft with the slip surface shape shaft lower end portion abutted onto the vertex or curve equivalent section. The curve equivalent section is defined as a portion of a vertical cross section that passes through the vertex equivalent section is formed in an arc shape.

A utility vehicle includes a frame, a first ground-engaging element coupled to a first portion of the frame, a second ground-engaging element coupled to a second portion of the frame, an operator platform supported by the frame, and a suspension system coupled between the operator platform and the frame to accommodate motion of the frame relative to the operator platform. The suspension system includes a first linkage assembly coupled to the operator platform and operable to accommodate motion of the second portion of the frame relative to the operator platform and a second linkage assembly having a first end coupled to the frame to secure the suspension system to the frame and a second end coupled to the first linkage assembly. The second linkage assembly being operable independent of the first linkage assembly to accommodate motion of the first portion of the frame relative to the operator platform.

A method for assembling an agricultural vehicle including the initial step of providing the agricultural vehicle including a frame, a hydraulic manifold, and a cab suspension system. The cab suspension system includes an anti-roll bar, a pair of support brackets configured for securing the anti-roll bar to the frame, and a pair of intermediary placement brackets configured for temporarily supporting the anti-roll bar in a final assembly position. The method includes the further steps of attaching the intermediary placement brackets onto the frame, positioning the anti-roll bar on the intermediary placement brackets to position the anti-roll bar in the final assembly position, assembling the hydraulic manifold onto the frame, and connecting the support brackets to the frame and the anti-roll bar.

An arrangement and method are provided for enabling rotation movement between a tandem or caterpillar axle and a body of a vehicle. This type of vehicle includes at least one body part that is provided with a tandem or caterpillar axle. At least one body part includes a main body and an auxiliary body connected to it to rotate around the longitudinal axis of the vehicle or an essentially parallel axis thereto. The tandem or caterpillar axle is connected substantially rigidly to the main body, and the body part has at least one actuator for controlling the rotation movement between the main body and auxiliary body. In this way, changes in the position and motion status of the auxiliary body, especially in relation to the rotation around the longitudinal axis of the vehicle, are arranged to cause in the actuator a pushing or pulling motion that steers the auxiliary body to a rotation movement for the purpose of arranging the auxiliary body to a substantially horizontal position.

A boat includes: a hull; a float that supports the hull; a suspension that is disposed between the hull and the float and absorbs vibration transmitted from the float to the hull; a sensor that detects an interval between the hull and the float in a vertical direction; a control unit that generates a control signal in accordance with the interval; a battery that is charged or discharged in accordance with the control signal; and a motor that generates electric power by utilizing relative movement between the hull and the float in the vertical direction, charges the battery with the generated electric power in accordance with the control signal, and drives the suspension using the electric power discharged from the battery in accordance with the control signal.

A suspension actuation assembly can include first and second support assemblies that are displaceable relative to one another in a first direction of travel. A connector assembly can extend between and operatively connect the first and second support assemblies. An actuator assembly can be displaceable between collapsed and extended conditions. The actuator assembly can be oriented transverse to the first direction of travel and can be operatively associated with the connector element such that displacement of the actuator assembly generates displacement of the first and second support assemblies relative to one another along the first direction of travel. A suspension system including such a suspension actuation assembly is also included.

The invention relates to a vehicle seat or a vehicle cab with a suspension system comprising an upper closing part and a lower closing part which is deflectable in relation to the upper closing part, which closing parts are operatively connected to each other in a resilient manner by means of a suspension element, and with a damping system for damping vibrations acting on at least one of the two closing parts, wherein an electromagnetically acting damping and height-levelling unit is provided which is arranged between the two closing parts in such a manner that said damping and height-levelling unit acts on the upper of the two closing parts in the vertical direction of the vehicle both in a vibration-insulating and also height-levelling manner.

The invention provides an axle for wheels of a two-track motor vehicle. The axle has, on each vehicle side, a wheel carrier, a damper strut, a transverse link and a transverse leaf spring which controls the wheel at least partially laterally and/or in the vehicle longitudinal direction. The damper strut has a damper tube and a damper piston which can be moved in the damper tube along a damper longitudinal axis. The damper strut is attached by the damper tube to the wheel carrier. The transverse link is attached by a wheel-carrier-side end region to the wheel carrier. The transverse leaf spring extends substantially in the vehicle transverse direction and has at least one wheel-carrier-side end region. The transverse leaf spring is attached by the wheel-carrier-side end region thereof to the damper strut and is supported on the damper strut.