This invention relates to a cab support structure for construction machine. The cab support structure has a rear beam and a front beam, which support front and rear part of cab, and a center beam located and welded between inner and outer frames of the machine. A stopper located at the corner of center beam side of the junction of rear beam and outer frame is formed box shape. The stopper has an L-shaped plate welded to the rear beam and the outer frame, and a doubling L-shaped plate welded to the L-shaped plate, rear beam, and outer frame.

An isolation mount assembly comprises a resilient member defining a central aperture that defines a load axis and an annular depression about the load axis, and an adapter plate including an outer mechanical attachment structure that defines a first thickness and an inner attachment structure that is closer to the load axis than the outer attachment structure along a direction that is perpendicular to the load axis and that defines a second thickness. The inner attachment structure is disposed in the annular depression and the second thickness is at least twice the first thickness.

A system for suspending a cab frame relative to a base component of a work vehicle may generally include a sensor assembly coupled between the cab frame and the base component. The sensor assembly may include a sensor coupled to the cab frame and a sensor arm configured to pivot relative to the sensor. The sensor assembly may also include a sensor linkage extending lengthwise between a first end portion and a second end portion. The first end portion of the sensor linkage may be coupled to the sensor arm. Additionally, the second end portion of the sensor linkage may be coupled to the base component such that the second end portion is rotatable relative to the base component about at least two different axes.

A method for performing open-loop or closed-loop control of a driver's cab mount of a motor vehicle, wherein the driver's cab mount has dampers whose damper force can be adjusted, wherein the motor vehicle can be operated a first driving mode in which the motor vehicle automatically carries out vehicle guidance comprising both a longitudinal guidance operation and a transverse guidance operation of the motor vehicle, and in a second driving mode where the motor vehicle can be controlled by the driver, in which driving mode a driver of the motor vehicle is intended to carry out at least part of the vehicle guidance himself, wherein when the motor vehicle is operated in the first driving mode, the adjustable dampers of the driver's cab mount are actuated or adjusted in such a way that pitching or rolling movements are reduced compared to the second driving mode.

The present disclosure relates to a cab suspension for a tiltable cab of a commercial vehicle, preferably a front cab-suspension. The cab suspension includes two brackets for mounting on a frame construction of the commercial vehicle in a manner fixed to the frame, a vibration construction for damping movements of the cab whilst the commercial vehicle is travelling, wherein the vibration construction has two lateral bearing portions and a cross-element connecting the bearing portions, and a torsion-bar construction for tilting the cab. The cab suspension is particularly notable in that the brackets have a ramp structure along which the vibration construction may be guided backwards and upwards in the event of a frontal collision and/or the vibration construction and the torsion-bar construction are functionally separate from one another.

In one embodiment, a method comprising dampening movement of a cab supported by a chassis according to at least one dampening component; receiving plural inputs from at least one sensor and a seat suspension system; and based on the received plural inputs, causing an adjustment to the dampening movement of the cab according to the at least one dampening component.

Suspension unit, comprising a control unit, for a utility vehicle, wherein the utility vehicle has a body floor, to which a first and a second axle are connected, wherein the utility vehicle comprises at least one vehicle seat and/or a vehicle cab that can be suspended by a suspension device relative to the body floor, wherein the vehicle seat and/or the vehicle cab is arranged substantially above the second axle seen in a vertical direction, wherein, when driving over a bump with the first axle, a value of a deflection of the first axle by the disturbance can be determined by at least one sensor, and wherein the suspension device of the vehicle seat and/or vehicle cab can be varied by the control unit before or upon driving over the disturbance with the second axle.

Vehicle vibration device for a vehicle seat or a vehicle cabin, comprising a lower part and an upper part which is resiliently mounted relative to the lower part by a damper means, wherein the upper part is mounted in a suspended manner on the lower part by means of at least one pivot bearing, wherein the at least one first pivot bearing comprises at least one first lever, the first end of which is attached to the lower part by a first pivot axis and the second end of which is attached to the upper part by a second pivot axis, wherein the second end is located below the first end when viewed in a vertical direction, wherein at least the position of the first end of the lever can be changed by an adjustment means.

The vibration damping device comprises a first vibration damping unit. The first vibration damping unit comprises protective nets, a fixing plate, a base, a guide element, a first elastic element and a limiting element. The fixing plate is arranged opposite to the base and connected to the protective nets. The guide element is located between the fixing plate and the base and opposite to the base. A movement space is formed between the guide element and the base. The base is also configured to be connected to a cab body. The first elastic element is arranged in the movement space. The limiting element has one end connected to the base and the other end working together with the fixing plate to limit the stroke of the first elastic element.

An air spring for a cab of a heavy truck with automatic height adjustment, in which the air spring is provided between the cab and a frame of a truck and supports the cab with a pressure of air filling in the air spring, includes a canister in which an internal space is formed, and a piston movably mounted in the internal space of the canister and configured to ascend and descend relative to the canister. A port opening unit is provided adjacent to an intake port and an exhaust port of the piston, respectively. When the cab ascends or descends, each of the port opening units comes into contact with guides, each having an inclined surface, formed in the canister to open either the intake port or the exhaust port.