Abstract: A commercial vehicle with a technically simple single wheel suspension for the wheels mounted in wheel supports, guaranteeing safe protection of the cardan shaft driving the wheels from harmful influences, includes a wheel support (8; 33), which a) together with a spring arm (7; 35) forms a longitudinal swinging arm (16; 21; 37) which is articulated to the gearbox (1) in front of the wheel (4) in the longitudinal direction of the vehicle, b) extends directly to the gearbox (2; 25; 32) and c) fully receives the cardan shaft (12) arranged between the output shaft (5) of the gearbox (2; 25; 32) and the assigned wheel shaft (10).

Abstract: A dry air filter for combustion engines of commercial vehicles with a device to produce compressed air, whereby the dry air filter (4) consisting of a filter housing (5) containing a filter cartridge (7) and a dust preliminary filtering stage (6), with an exhaust (8) for the dust discharged from the preliminary filtering stage which has a nozzle shaped section in which compressed air that is produced is blown through a conduit in the direction of the free opening by an ejector effect. In order that the air filter is easier to service and maintain, the compressed air is fed over a ring slot (28) into the exhaust (8) and is blown in the direction of the open outlet (21) for the purpose of creating an ejector effect to keep the exhaust free from dust. Compressed air is blown through the exhaust so that blockages cannot build up there nor in the area of the preliminary filtering stage. Specific, regular supervision of this area therefore becomes necessary.

Abstract: An anti-noise gear wheel against which at least one vibration damping mass made from a heat-resistant and oil-resistant material is coupled in order to de-tune its vibration behavior. In order to produce an anti-noise gear wheel which is simple to assemble and whose anti-vibration mass can be mounted in the gear assembly area using standard means, the anti-vibration mass is applied against the gear wheel by its full surface under a defined contact pressure. As a result, the use of adhesive to make an anti-noise gear wheel, which has been common practice to date, can be dispensed with.

Abstract: In a dry air filter for internal combustion engines of utility vehicles having an outlet for the dust separated in a preliminary separator stage, compressed air is delivered to the outlet, at least intermittently, and in order to produce an ejector action to keep the outlet and optionally the dust discharge valve closing off the outlet free of dust, is blown in the direction of the dust discharge valve. Preferably, surplus compressed air already to hand from an on-board compressed air generating system is used for this purpose. In order to improve the cleaning action, the compressed air is delivered into the outlet via a nozzle.

Abstract: A ballast weight arrangement for a working vehicle has an interlocking connection between a ballast weight and a ballast weight support in the transverse plane of the vehicle, wherein interlocking is brought about by at least one projection on the ballast weight engaging in a recess on an adjacent ballast weight. Interlocking is achieved by controlled movement of a locking member on lifting up ballast weight 8 from a deposit block 22 and be released on putting down ballast weight 8 on deposit block 22.

Abstract: A hydraulic system for a utility vehicle supplies primary and auxiliary hydraulic actuators with hydraulic fluid and includes a pump, the pressure of which is controlled with respect to the load pressure of the primary and auxiliary hydraulic actuators. The pressure of the hydraulic fluid from the pump exceeds the load pressure by a predetermined control pressure differential. Valves arc provided for producing two control pressure differentials of different values. When the prevailing load pressure of the auxiliary hydraulic actuator and a highest load pressure of the primary hydraulic actuator is less than the sum of the load pressure of the auxiliary hydraulic actuator and the control pressure differential of the auxiliary hydraulic actuator minus the control pressure differential of the primary hydraulic actuator, the control pressure differential is increased with respect to die control pressure differential in cases where the load pressure of the auxiliary hydraulic actuator does not prevail.

Abstract: A steering device comprises a rigid steering axle (12) pivotable about a substantially horizontal axis, the wheels (5) of which are driven by a cardan shaft (4) arranged between the steering axle and the transmission (2) the transmission being spaced apart from the steering axle, comprising a power steering gear (22) actuatable by a steering wheel (14) and a steering shaft (23), the power steering gear having a pinion (30), which is connected with the steering linkage of the steering axle, and comprising a steering cylinder being an integral part of the steering linkage, the steering cylinder being actuatable by fluid under pressure supplied by the power steering gear, characterized in that a steering cylinder (21) is positioned coaxially with respect to the cardan shaft (4), the steering cylinder being connected with the steering axle (12) and comprising a hollow piston rod (28) to receive the cardan shaft (4), and that a first toothed rack (29) of the piston rod of the steering cylinder is in driving connec

Abstract: A ballast weight arrangement for a working vehicle has an interlocking connection between a ballast weight and a ballast weight support in the transverse plane of the vehicle, wherein interlocking is brought about by at least one projection on the ballast weight engaging in a recess on an adjacent ballast weight. Interlocking is achieved by controlled movement of a locking member on lifting up ballast weight 8 from a deposit block 22 and be released on putting down ballast weight 8 on deposit block 22.

Abstract: A system operated by what is referred to as a clutch pedal, which adjusts the traction power of an infinitely variable, hydrostatic-mechanical transmission. The transmission contains at least one pump (1) and at least one motor (2), arranged in a hydraulic circuit. In order to reduce the traction power, pressure is leaked between the two sides of the motor (2) by reducing the pressure at the control parts (14a) of two proportional valves (14, 15) in respective lines bridging the motor (2). The control parts (14a) of the proportional valves (14, 15) are connected via a shift valve (19) to an intermediate valve (24), the closing force of which is reduced as the clutch pedal (26) is opened by means of a closing spring (36).

Abstract: A detachable front-loader comprising a loader assembly consisting of two arms (1) joined by one or more transverse members (2,3) as shown in FIG. 1. Each arm (1) is provided with a supporting device comprising a pivotable support foot (9) and a telescopic strut (10). Each support device is movable between a non-operational position wherein the support foot (9) rests against a respective arm (1), and an operational position. The foot (9) is retained in the operational position by locking the telescopic strut (10) in an extended state. Opposing ends (15,16) of the strut are provided with screw threads (15a,16a) which are connected to threaded members (13,14) pivotally located on the foot (9) and the arm (1).

Abstract: A utility vehicle ha a rigid axle that can be pivoted about a fixed swivel extending the longitudinal direction of the vehicle. The axle is mounted on a swinging link, with which the cylinder of a hydro-pneumatic spring suspension engages. Such vehicle are equipped with a spring suspension for road travel at speeds in excess of 40 km/hr. However, both the spring action and the swivel movement of the rigid axles are potentially dangerous when working on uneven or sloping ground. This invention permits both the spring action and the swivel movement of the rigid axle to be prevented. This invention is particularly well suited for vehicles used in agriculture, forestry, and construction.

Abstract: A power-take-off of a utility vehicle such as an agricultural tractor has a clutch (3) and a brake (18) to retain the output shaft against rotation when the clutch is disengaged. The invention provides a means of automatically disengaging the brake to permit rotation of the output shaft for the purpose of coupling an implement thereto. In one embodiment, the clutch and brake are engaged by fluid under pressure, and are disengaged by stopping the vehicle engine and thus allowing engine generated fluid pressure to decay.

Abstract: A transmission coupling assembly for absorbing axial and/or angular displacement between an internal combustion engine and a downstream gear train comprises a resilient vibration damper (3;24) secured to the flywheel (1;26). A coupling member (4;23) secured to the vibration damper is rotationally coupled to a coupling shaft (7;21) by means of interlocking splines, the splines (4a) of the coupling member being substantially straight and the splines (5a) of the coupling shaft being crowned or spherically curved. At the other end of the coupling shaft (7;21) a similar splined connection is made to the input shaft (8) of the downstream gear train. Lubrication is provided at the splined connection between the coupling shaft and the input shaft of the gear train, with a Z-cross section seal extending between the coupling shaft and the gearbox casing to prevent leakage of lubricant fluid.

Abstract: A hydraulic system for a power-take-off in a utility vehicle is described, having a pump (8) supplying hydraulic fluid to the clutch (1), the brake (2) and a lubricating circuit, a control valve for engaging and releasing the clutch and a device containing a pressure-limiting valve (12) which makes a high system pressure available when the clutch is engaged and a lower system pressure when the clutch is released.In order to keep loss of power in the pump as low as possible and reduce the number of components required in a hydraulic system of this type, the system pressures are controlled by the pressure applied to the engaged clutch. Consequently, the system pressures can be adjusted regardless of the design of control valve used. This means that less expensive 3/2-way valves or 3/2-control valves can be used. This also has an advantage in that different system pressures can be produced using a single pressure-limiting valve.

Abstract: A control device is disclosed for vehicles, in particular towing vehicles used for agricultural purposes which have a mounting located near the front of the armrest of the driver's seat for a group of control members used to control various functions of the vehicle. A group of control members consisting of a plurality of switches or buttons and a manually-operated lever are provided to minimize fatigue when the vehicle driver is seated for a long period of time. A hand support is also included near the control members to support the palm of the vehicle driver's hand. The switches or buttons and lever are arranged so that the switches or buttons can be reached and operated comfortably with the outstretched fingers and the switching lever is located between the thumb and index finger, while the hand is resting on the hand support.