Abstract: The invention relates to a lifting device, comprising a shank tube and a support tube movable with respect thereto, wherein on the shank tube a lifting gear mechanism is arranged which comprises an input shaft arrangement for connecting a drive device and an output shaft arrangement for driving a lifting spindle, wherein the input shaft arrangement comprises a hollow shaft and an axially movable gearshift shaft which is arranged coaxially with respect to the hollow shaft, wherein the hollow shaft serves for the rotationally fixed arrangement of a large-diameter gearwheel, and the gearshift shaft serves for the rotationally fixed arrangement of a small-diameter gearwheel, and engagement devices are provided on the hollow and gearshift shafts which can be put in coupling engagement by axial movement in order to change the transmission ratio.

Abstract: A foot device (29) for supporting a support device or lifting device, in particular a semitrailer support or the like, comprising a foot receptacle (31) for connecting a pivoting foot (32) to a support tube (12) of the lifting device (10), wherein the foot receptacle comprises an insertion body (120) for insertion into the support tube, comprising, in two support tube engagement areas spaced apart from one another by a spindle passage area (143) of a lifting spindle (20), bracket receptacles (123,124) for receiving pivoting brackets (130,131) of the pivoting foot, wherein the pivoting brackets are connected in a captive manner to the insertion body along a pivoting axis (136), and the bracket receptacles comprise counter support faces (133) which are arranged concentrically with respect to the pivoting axis and which, for transmitting the supporting forces, correspond with respective support faces (132) formed by the outer contour of the pivoting brackets.

Abstract: The invention relates to a lifting device (10), in particular a semitrailer support or the like, comprising a shank tube (11) and a support tube (12) which is movable with respect to the shank tube, wherein on the shank tube a lifting gear mechanism (26) is arranged which comprises an input shaft arrangement (27) for connecting a drive device, and an output shaft arrangement (28) for driving a lifting spindle (20) which is arranged within the support tube and which acts on a pressure plate (18) arranged within the shank tube, wherein the pressure plate is located above the lifting gear mechanism.

Abstract: The invention relates to a lifting device (10), in particular a semitrailer support or the like, comprising a shank tube (11) and a support tube (12) which is movable with respect to the shank tube, wherein on the shank tube, a lifting gear mechanism (26) is arranged which comprises an input shaft arrangement (27) for connecting a drive device and an output shaft arrangement (28) for driving a lifting spindle (20) which is arranged within the support tube and which rests with one end on a pressure plate (18) arranged within the shank tube and interacts with the moving end with a spindle nut (25) arranged in the support tube, wherein the spindle nut comprises a locking collar (90) with at least two locking devices (107, 108, 109, 110) which interact with locking latches (103, 104, 105, 106) formed on the tube wall of the support tube in such a manner that, with a coaxial alignment of the spindle nut with the support tube, the spindle nut can be inserted, in an assembly rotational angle position, into the suppo

Abstract: The invention relates to a lifting device (10), in particular a semitrailer support or the like, comprising a shank tube (11) and a support tube (12) which is movable with respect to the shank tube, wherein on the shank tube a lifting gear mechanism (26) is arranged which comprises an input shaft arrangement (27) for connecting a drive device, and an output shaft arrangement (28) for driving a lifting spindle (20) which is arranged within the support tube and which acts on a pressure plate (18) arranged within the shank tube, wherein the pressure plate is located above the lifting gear mechanism.

Abstract: The invention relates to a lifting device (10), in particular a semitrailer support or the like, comprising a shank tube (11) and a support tube (12) which is movable with respect to the shank tube, wherein on the shank tube a lifting gear mechanism (26) is arranged which comprises an input shaft arrangement (27) for connecting a drive device and an output shaft arrangement (28) for driving a lifting spindle (20) which is arranged within the support tube, wherein the input shaft arrangement and the output shaft arrangement each comprise at least one large-diameter gearwheel (70, 80) and one small-diameter gearwheel (62, 81) which can be put in force-fitting engagement with one another to generate different transmission ratios, wherein the input shaft arrangement comprises a hollow shaft (86) supported in a gear housing (68), and an axially movable gearshift shaft (85) which is arranged coaxially with respect to the hollow shaft and which is supported in the gear housing, wherein the hollow shaft serves for th

Abstract: The invention relates to a foot device (29) for supporting a support device or lifting device, in particular a semitrailer support or the like, comprising a foot receptacle (31) for connecting a pivoting foot (32) to a support tube (12) of the lifting device (10), wherein the foot receptacle comprises an insertion body (120) for insertion into the support tube, comprising, in two support tube engagement areas spaced apart from one another by a spindle passage area (143) of a lifting spindle (20), bracket receptacles (123, 124) for receiving pivoting brackets (130, 131) of the pivoting foot, wherein the pivoting brackets are connected in a captive manner to the insertion body along a pivoting axis (136), and the bracket receptacles comprise counter support faces (133) which are arranged concentrically with respect to the pivoting axis and which, for transmitting the supporting forces, correspond with respective support faces (132) formed by the outer contour of the pivoting brackets.

Abstract: In order to be able to handle containers of a height greater than the structural height of a rack and pinion jack in its retracted state, the top crosspiece of the rack and pinion jack is provided to be bent and provided with a double-acting engagement part. Thus, the top crosspiece can be brought into its top position with its engagement part engaging with the top corner metal fittings of a container of which the height exceeds that of the rack and pinion jack in a retracted state. By a simple 180.degree. rotation of the top crosspiece, its engagement part can be brought into engagement with the top corner metal fittings of another container, having a different structural height. In this manner, the rack and pinion jacks can be adapted to any height setting of the top crosspiece by 180.degree. rotation of the same to any two containers of different structural height.

Abstract: A lifting and depositing device for a large container has connecting longerons which are approximately the height of the container and are attached to the corner fittings of the large container to be raised and lowered. The connecting longerons are arranged at the corners of the large containers and, at the bottom ends at some distance to the side, they support at least one more connecting longeron for an overhang beam of a rack and pinion jack. The rack and pinion jack can be raised and lowered along upright, at the bottom ends of which are arranged pairs of wheels. In order to be able to adjust the pairs of wheels in a simple manner to different track gauges (narrow and wide), the overhang beam can be attached either to the connecting longeron which is approximately the height of the container or to the additional connecting longeron.

Abstract: Lifting and depositing devices which have four rack and pinion jacks are used to raise and lower transportable large containers or to support them above the ground, and the jacks can be attached to a container by arms reaching to the ISO corner fittings of the container. Each arm has a connecting beam which is approximately the height of the container, which is supported by means of a journal arranged at its top end parallel and at some distance therefrom in a top ISO corner fitting an is detachably fastened to its bottom end by an angled connecting part by means of two snap locks. In order to allow this fastening to the bottom ISO corner fitting, at least, the one snap lock is configured as a modular removably structural part. The snap lock, however, is also suitable for other attachment components, for instance pulley blocks or roller trestles for large containers.

Abstract: Lifting and depositing devices for transportable large containers should be dismountable into individual parts of relatively low weight per part for simplification of their handling. So that this is also true of relatively long overhang arms of the rack and pinion jacks of such devices, each overhang arm is configured generally in the shape of a wrench having a narrow middle part and forked end parts, and is of generally flat construction, so that its greatest structural height corresponds only approximately to the structural height of the winch assembly. The overhang arms thus have a relatively narrow, lightweight middle portion and because of the flat construction following dismounting of the winch assembly and support legs they have the desired light weight per piece.

Abstract: The lifting and depositing device for a large container has four rack and pinion jacks attached to its corners at a low point by overhang beams. The racks are fastened to uprights, along which the rack and pinion jacks can be raised and lowered by suitable operation. In order to move the large containers with the lifting and depositing device, the bottom ends of the uprights are connected by wheel supports with wheels. The wheels are mounted on a wheel swiveling mechanism which has a support surface for the bottom end of the uprights. The wheel swiveling mechanism is rotatable relative to the uprights for controllability of the device. Each support surface for an upright is provided on a rocker mounted on the wheel swiveling mechanism for rotation about a substantially horizontal axis.

Abstract: With a lifting and depositing device for portable box-like articles, in order to be able to operate their rack and pinion jacks manually and with ease by crank assemblies, each crank assembly has a haft-like crankcase, which has at one end a rotatable crankshaft and at the other end a rotatable drive shaft, which can be connected with an adjacent rack and pinion jack having a winch housing. The crankshaft and drive shaft are operatively connected with each other so that the latter is driven by the former. The crankcase can be connected with an adjacent winch housing and be pivoted into different work positions as well as fixed in such positions on the winch housing. Thus, the operation of the rack and pinion jacks is especially simplified in their top and bottom end positions on the uprights of the lifting and depositing device.

Abstract: For the handling of portable large containers, lifting and depositing devices are used, which have rack and pinion jacks to be attached to the corners of the containers by brackets. There rack and pinion jacks have tubular winch shanks which are approximately the height of the containers, into which are guided tubular uprights with the racks. Because of tolerance variations, the danger here arises of an impaired guidance of the uprights with the result of a poor operation of the gearing. To avoid this difficulty, a guide tube is connected with the bottom end of each tubular winch shank. Guide surfaces in the guide tube can be produced with great precision and at low cost. The housing of the winch gearing is configured integral with the guide tube. Thus, a small amount of side play can be left between the upright and winch shank without adversely affecting the rack and pinion gearing operation.

Abstract: A lifting and depositing device for portable containers comprising a plurality of rack and pinion jacks, some of which are mounted on support legs of the container. Each rack and pinion jack has an accessory gearing which can be pivoted outwardly or removed, so that when accessory gearing is pivoted outwardly, a support leg can be manually moved axially relative to its guide part, if the container, e.g., is offset on the loading surface of a truck. Thus, the gearing operation and time-consuming crank work required until now for two idle strokes per work cycle is avoided.

Abstract: A movable lifting and depositing device comprising separate rack and pinion jacks to be connected to the corners of portable containers, e.g., cabins, containers, shelters or the like, by means of brackets, the jacks having racks for the containers provided on columns which have track wheels at the bottom. In order to maintain sufficient stability of the lifting and depositing device, even when the container to be handled is at relatively high positions, each rack and pinion jack has a swivel mechanism with two vertically spaced work positions. In its bottom work position, wherein it is folded down from a main column guide onto a relevant bracket, the swivel mechanism is to be connected with an auxiliary column guide arranged beneath the main column guide. This can be moved by the swivel mechanism into the top work position of the associated column.