Abstract: A weight-measuring device (1) for vehicle lifting platforms, which can be arranged between a height-adjustable supporting element (15) and a vehicle which is to be lifted, wherein an upper part (2) and a lower part (3) form a cavity (12) which is filled with a hydraulic fluid (13) and/or with a gas and generates in the cavity (12), by means of a load (19, 20) lying on top, a hydraulic or gas pressure which is measured and/or indicated with a pressure gauge and/or indicator device (4) which is at least partially integrated in the upper part (2) and/or in the lower part (3), with the upper part (2) being composed of rubber and/or of plastic and/or of some other elastic material.

Abstract: The invention relates to a bearing element for lifting platforms, which is a displaceable part of a bearing arm of a load receiving element of a lifting platform, with a vehicle bearing element resting on that end of said bearing element that protrudes from the carrier, wherein at least one annular recess, in particular an annular groove, is arranged on the upper side of said bearing element, in which at least one vertically displaceable transfer element is disposed that seals a pressure chamber that is filled with hydraulic fluid and is disposed below said transfer element, with the transfer element generating in the pressure chamber a pressure that is characteristic for the weight.

Abstract: Support element for lifting platforms, which can be arranged between a carrying element of the lifting platform and a vehicle which is to be raised, wherein the support element can be removed from the carrying element, wherein the support element rests on at least one vertically displaceable transfer element that seals a pressure chamber that is filled with hydraulic fluid and is disposed above said transfer element, with the transfer element generating in the pressure chamber a pressure that is characteristic for the weight resting on the support element, and in that the pressure chamber has an annular recess, in particular a groove, which is sealed by the equally annular transfer element.

Abstract: A hydraulic vehicle lift system includes at least one hydraulic vehicle life and one hydraulic drive unit for lifting and lowering the at least one vehicle life. The hydraulic vehicle lift system is characterized in that the hydraulic vehicle lift system has at least one further hydraulic vehicle lift and at least one further hydraulic drive unit for lifting and lowering the at least one further hydraulic vehicle lift, and in that the hydraulic vehicle lifts can be hydraulically connected to the respective other hydraulic drive unit in order to be lifted and lowered.

Abstract: A weight-measuring device (1) for vehicle lifting platforms, which can be arranged between a height-adjustable supporting element (15) and a vehicle which is to be lifted, wherein an upper part (2) and a lower part (3) form a cavity (12) which is filled with a hydraulic fluid (13) and/or with a gas and generates in the cavity (12), by means of a load (19, 20) lying on top, a hydraulic or gas pressure which is measured and/or indicated with a pressure gauge and/or indicator device (4) which is at least partially integrated in the upper part (2) and/or in the lower part (3), with the upper part (2) being composed of rubber and/or of plastic and/or of some other elastic material.

Abstract: Support element for lifting platforms, which can be arranged between a carrying element of the lifting platform and a vehicle which is to be raised, wherein the support element can be removed from the carrying element, wherein the support element rests on at least one vertically displaceable transfer element that seals a pressure chamber that is filled with hydraulic fluid and is disposed above said transfer element, with the transfer element generating in the pressure chamber a pressure that is characteristic for the weight resting on the support element, and in that the pressure chamber has an annular recess, in particular a groove, which is sealed by the equally annular transfer element.

Abstract: The invention relates to a bearing element for lifting platforms, which is a displaceable part of a bearing arm of a load receiving element of a lifting platform, with a vehicle bearing element resting on that end of said bearing element that protrudes from the carrier, wherein at least one annular recess, in particular an annular groove, is arranged on the upper side of said bearing element, in which at least one vertically displaceable transfer element is disposed that seals a pressure chamber that is filled with hydraulic fluid and is disposed below said transfer element, with the transfer element generating in the pressure chamber a pressure that is characteristic for the weight.

Abstract: The invention relates to a hydraulic double ram lifting platform with two cylinder tubes (3), moving together in the vertical direction (17), a hydraulically-operated lifting unit (18), for each cylinder tube (3), a mechanical cross-support (5), for both lifting units (18) to ensure synchronization of both cylinder tubes (3) and rotational fixing about the longitudinal axis thereof, characterized in that each lifting unit (18) is provided with a standing, hollow plunger piston (4), supported at the base, within which compressed air (26) and a hydraulic fluid (27) are arranged, the interior of which is embodied as a pressurized reservoir and to the lower end of which a curved tube is fixed, which extends inside up to the upper reaches (22) of the plunger piston (4).

Abstract: The invention relates to a hydraulic double ram lifting platform with two cylinder tubes (3), moving together in the vertical direction (17), a hydraulically-operated lifting unit (18), for each cylinder tube (3), a mechanical cross-support (5), for both lifting units (18) to ensure synchronisation of both cylinder tubes (3) and rotational fixing about the longitudinal axis thereof, characterised in that each lifting unit (18) is provided with a standing, hollow plunger piston (4), supported at the base, within which compressed air (26) and a hydraulic fluid (27) are arranged, the interior of which is embodied as a pressurised reservoir and to the lower end of which a curved tube is fixed, which extends inside up to the upper reaches (22) of the plunger piston (4).

Abstract: A lifting platform for motor vehicles consisting of a least one lifting cylinder arranged in a covered pit at whose upper end supporting elements for the motor vehicle are attached, a high-pressure unit for supplying pressurized oil to the lifting cylinder and a guide bushing for the lifting cylinder attached to supporting frame anchored in the foundation of the pit. A central rod mounted on the bottom of the pit projects into the lifting cylinder and is sealed with respect to the lower end of the lifting cylinder by a ring gasket and its upper end face forms a pressure face. In the inside wall of each guide bushing there is at least one lubricating channel which is in flow connection with the pressurized oil return line with each lowering stroke of the lifting cylinder or the lifting platform.