Abstract: A height-adjustable support (10) for semi-trailers or similar, comprising a locally fixed external support tube (13), an internal support tube (14), which is fixed to a nut (18) on a spindle (17), the spindle being driven by a change-over gear and a bevel gear assembly. The change-over gear has two gear wheel stages which can be alternately activated, a separate gear stage comprising bevel gear toothing being provided for the distribution of forces after each gear wheel stage.

Abstract: A control device for an articulated road train provided with a system for detecting pivoting and articulating angles between the central longitudinal axes of the tractor and a semi-trailer coupled thereto by a coupling pin during coupling and parking and/or a control device for an articulated road train provided with a system for detecting pivoting and articulating angles between the central longitudinal axes of a drawbar and a trailer which is coupled by the drawbar during coupling and parking. The system has a plurality of Hall sensors (21) arranged side-by-side on the arc of a circle and a constant magnet (30) interacting therewith in such a way that it acts on the nearest Hall sensor according to the radial position thereof, a required angle (?) being determined on the basis of the excited Hall sensor position.

Abstract: A height adjustable support comprising a stationary outer support tube, an inner support tube arranged in a longitudinally displaceable manner in the outer support tube, a gearbox output shaft mounted for rotational movement in the outer support tube, a bevel gear fixed to the gearbox output shaft, a spindle drive engaged with the bevel gear for displacing the inner support tube within the outer support tube, a gearwheel fixed to the gearbox output shaft and engaging a pinion of a drive motor, for driving the gearwheel, the gearbox output shaft, the bevel gear and the spindle drive for moving the inner support tube, and a switch off device which deactivates the drive motor when an end of the inner support tube abuts a surface.

Abstract: A semitrailer coupling comprising a coupling plate and a bearing block used for movably fastening the coupling plate to a frame of a tractor. The bearing block is provided with a bearing area and a fastening area. The bearing area is embodied such that the coupling plate can be pivotably mounted while the fastening area is configured such that the coupling plate can be detachably fixed to a frame of the tractor. The bearing area has a larger cross section than the fastening area, the cross section extending in the direction of travel (x) and parallel to the pivoting axis (y).

Abstract: A height-adjustable support for semitrailers wherein the foot plate is suspended on tension springs which are arranged in two parallel planes situated in each case between the track roller and the wall of the inner support tube, and is fastened to the foot plate by one eyelet in each case in the inner support tube and the other eyelet in the vicinity of the transverse axis, and in that the foot plate corresponds with the inner support tube by a retaining device which is not permanently in engagement.

Abstract: A height-adjustable support for semitrailers, having a stationary outer support tube, an inner support tube, which is arranged in a longitudinally displaceable manner therein, and a gearbox output shaft, on which is seated in a rotationally fixed manner a bevel wheel of relatively small diameter which belongs to a bevel wheel gear stage which drives the spindle drive for the purpose of displacing the inner support tube, the drive shaft being hollow at least in its end region opposite the drive side or having a hollow extension fitted thereon.

Abstract: A height-adjustable support for semitrailers, having a stationary outer support tube, an inner support tube, which is arranged in a longitudinally displaceable manner therein, and a gearbox output shaft, on which is seated in a rotationally fixed manner a bevel wheel of relatively small diameter which belongs to a bevel wheel gear stage which drives the spindle drive for the purpose of displacing the inner support tube. Two large-diameter gearwheels are arranged in a rotationally fixed manner on the gearbox output shaft, the gearwheel being located exclusively within the flux of force of the manual drive, which is initiated via the hand crank, and the gearwheel only transmitting the flux of force which is brought about by the motor, which, in a known manner, may be arranged inside or outside the support.

Abstract: The present invention relates to an arrangement of measurement devices on a semitrailer motor vehicle having a tractive unit, a semitrailer unit, and a fifth wheel fastened to the tractive unit. The measuring arrangement includes a support structure for the fifth wheel and measurement devices for measuring forces arising between the semitrailer and the tractive unit attached to the support structure. The measurement devices preferably measure acceleration, tractive or braking forces and/or the weight of the semitrailer.

Abstract: The present invention relates to an arrangement of measuring devices on a semitrailer motor vehicle having a tractive unit, a semitrailer unit and a fifth wheel fastened to the tractive unit. An intermediate plate is disposed between the fifth wheel, the tractive unit and the semitrailer and is connected to the semitrailer. Measuring devices are disposed on the intermediate plate for measuring acceleration, tractive or braking forces and for measuring the weight of the semitrailer. The measured values are used to influence and improve the driving behavior of the semitrailer motor vehicle.

Abstract: The present invention relates to the arrangement of measuring devices on a semitrailer motor vehicle having a tractive unit, a semitrailer unit and a fifth wheel fastened to the tractive unit. The measuring devices(s) in each arrangement are disposed between the fifth wheel and the semitrailer. In one embodiment, a force sensor for measuring tractive and acceleration forces is disposed on a coupling claw forming part of a locking mechanism associated with the fifth wheel. In the same embodiment, a measuring device for measuring impact and pressure forces arising during braking is operationally connected to a movably mounted contact part forming part of the locking mechanism. Alternative embodiments of the present invention showing different measuring arrangements are also disclosed.

Abstract: The present invention relates to an arrangement of measuring devices on a semitrailer motor vehicle having a tractive unit, a semitrailer unit and a fifth wheel fastened to the tractive unit. The fifth wheel has a coupling plate which is pivotally disposed on a support structure such as a support block. The measuring arrangement includes measuring devices for measuring acceleration, tractive or braking forces which arise in the fifth wheel of the tractive unit. In the various embodiments disclosed herein, the measuring devices are incorporated into the support structure. If desired, the measuring devices may also include devices for effecting measurement of the weight of the semitrailer. The measured values are converted in an evaluation device into appropriate control commands for influencing the driving behavior of the semitrailer motor vehicle.