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.

A working machine includes a machine body an operator seat mounted on the machine body, a front working device swingable upward and downward, the front working device being provided forward of the operator seat and on one side in a machine-width direction eccentric with respect to a central portion of the operator seat, and a front guard provided forward of the operator seat. The front guard includes a first frame member provided forward of the operator seat and on the one side, and a second frame member provided forward of the operator seat and on another side opposite to the one side, the first frame member includes a main rod portion defining upper and lower portions of the first frame member, extending between the upper and lower portions of the first frame member, and provided rearward of the front working device, and the main rod portion is formed to be positioned in a machine fore-and-aft direction closer to the operator seat than the second frame member.

A cab mount (1A) includes an upper mount elastic body (2) and a lower mount elastic body (3) that are configured to sandwich a frame (10) of a vehicle. The upper mount elastic body (2) has recesses (4) in an inner peripheral surface (f21) of the upper mount elastic body (2). The recesses (4) extend in a circumferential direction. Each of the recesses (4) has an upper contact surface (f1) and a lower contact surface (f2) that are in contact with each other in a steady state.

A tractor includes a cabin composed of a plurality of frames; a vehicle body installed at an lower portion of the cabin and composed of a guide bar, an engine and a transmission to supply power; links connecting the cabin and the transmission at a front portion; first and second front elastic cylinders installed at one side of the links; and first and second rear elastic cylinders connecting the cabin and the transmission at a rear portion.

A modular utility vehicle construct that is light weight yet robust is provided. The construct is formed with a composite open area core sandwich structure capable of withstanding typical wear and tear and environmental elements experienced by utility vehicle compartments. The use of the composite sandwich structure allows for replacement of traditional materials such as steel or aluminum, without a loss of strength, in a vehicle's containment construct while also reducing the overall weight of the vehicle and increasing the ability to customize the vehicle's utility features to suit the specific needs of the purchaser.

A spring supported tray for mitigating a dominant frequency imparted thereto is provided. The spring supported tray includes a tray including a topside and underside, and configured to support an object on the topside, and N springs supporting the tray, N being a positive integer. A first end of each of the N springs is disposed at the underside of the tray. A second end of each of the N springs is disposed so as to receive vibrational motion imparted to the second end of each of the N springs from a source of the vibrational motion, the vibrational motion having a dominant undesired frequency f.sub.dom. Each of the N springs has a spring constant k defined by the equation: $k=\frac{f_n^{2}4{\pi }^{2}w}{\mathrm{Ng}}$
where w denotes the collective weight of the tray and the object, g denotes the force of gravity, and f.sub.n denotes a natural frequency of the spring supported tray supporting the object, wherein f.sub.n is a lower frequency than the dominant undesired frequency f.sub.dom.

A pickup truck includes a passenger cabin including a rear wall. A truck bed includes a front wall that faces the rear wall of the passenger cabin. A space is provided between the rear wall of the passenger cabin and the front wall of the truck bed. A combination absorber and seal member is mounted to the rear wall of the passenger cabin. The combination absorber and seal member includes an extended portion having an elongated dimension extending at an oblique angle to a vehicle lateral direction. The combination absorber and seal member is formed from a sound absorbing material and extends outward from the rear wall of the passenger cabin in a vehicle longitudinal direction toward the front wall of the truck bed providing a clearance of no more than about 15 mm between the extended portion and the front wall of the truck bed.

A fluid-filled tubular vibration-damping device comprising: an inner shaft member and an outer tube member connected by a main rubber elastic body so as to provide a sealed zone filled with a non-compressible fluid therebetween; and a partition wall partitioning the sealed zone axially. An outer peripheral side of the partition wall is fixed to the outer tube member while an inner peripheral side of the partition wall is constituted by an annular partition wall rubber disposed around the inner shaft member in a movable manner axially. Sealing tube parts are integrally formed with an inner peripheral portion of the partition wall rubber and project toward axially opposite sides. Fitting parts thicker than the sealing tube parts are integrally formed with distal ends of the respective sealing tube parts and are externally fitted around the inner shaft member in a slidable manner.

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.

The present invention relates to a bearing arrangement for a driver's cab (12) of a vehicle, which bearing arrangement is, in a mounted state, arranged between the driver's cab (12) and a cab support (16) of the vehicle, having a cone bearing (14) which, centrally, has a bearing sleeve (34) which is fixable to the driver's cab (12) and which extends through an opening (38) of the cab support (16) and which is of hollow form, wherein the bearing sleeve (34) is, at the outside, by way of an elastic damping element (22) connected thereto, connected to a concentrically arranged support element (24), wherein the support element (24) is fixable to the cab support (16) at the cab side by way of connecting elements (26), and having an abutment element (30) which is arranged on an end, averted from the driver's cab (12), of the bearing sleeve (34) and which serves for limiting a movement of the damping element (22) in an axial direction (A). The bearing arrangement is characterized in that an installation element (30) is arranged on a side, facing toward the abutment element (30), of the cab support (16), which installation element is, by way of the connecting elements (26), fastened to the cab support (16) concentrically with respect to the bearing sleeve (34).