Support device for a lifting platform, lifting platform with a support device

Abstract

A support device (1) for a lifting platform, with a support element (4) which is designed to receive a load to be lifted, and with a hollow bushing (5) which is fastenable on an outer side to the lifting platform so as to be continuously adjustable, and in which the hollow bushing (5) has a cavity (14) in order to receive the support element (4) by means of a rectilinear plugging-in movement (8) along a plugging-in axis (13), wherein a stop element (15) which is arranged in the cavity (14) is designed in such a manner that a plugging-in depth (10, 11) of the support element (4) in the hollow bushing (5) can be set incrementally, and the plugging-in depth (10, 11) is dependent on a relative rotational position between the support element (4) and the hollow bushing (5) about the plugging-in axis (13).

Description

[0001] Traction device for a lifting platform, lifting platform with a traction device

[0002] Description

[0003] The invention relates to a carrying device for a lifting platform and a lifting platform with a carrying device.

[0004] A support device of the type mentioned above can be used in lifting platforms, particularly vehicle lifting platforms, to support a load to be lifted, preferably a vehicle. Using a hydraulic unit of the lifting platform, the load can be moved along a lifting axis, held in a raised state, and lowered again. Typically, the lifting platform is equipped with several support devices to support the load at a plurality of force application points.

[0005] It is generally desirable to use a lift with the carrying device to lift different loads that may differ in their geometry. If the loads to be lifted are vehicles, these may have different ground clearances and chassis types. For example, vans or so-called sport utility vehicles (SUVs) have a higher ground clearance than sports cars. If a vehicle with a high ground clearance is to be lifted, the carrying device must typically be moved along the lifting axis until contact is established between the carrying device and the vehicle. With a large number of vehicles to be lifted over the operating life of the lift, adjusting the carrying device in this way involves a significant amount of time and energy.

[0006] Therefore, there is a need for a support device for a lifting platform that is height-adjustable independently of the lifting platform's lifting movement. Furthermore, the support device should be cost-effective to manufacture and highly reliable.

[0007] The object underlying the invention is to propose a carrying device that meets the aforementioned requirements. This object is achieved by means of a carrying device according to claim 1 and a lifting platform according to claim 14. Advantageous further developments are the subject matter of the dependent subclaims.

[0008] The support device according to the invention for a lifting platform comprises a support element designed to receive a load to be lifted, and a hollow sleeve, on the outside of which the hollow sleeve can be continuously adjustably fastened to the lifting platform. The hollow sleeve further has a cavity for receiving the support element by means of a rectilinear insertion movement along a plug-in axis. A stop element arranged in the cavity is designed such that an insertion depth of the support element in the cavity can be adjusted in steps, wherein the insertion depth depends on a relative rotational position between the support element and the hollow sleeve about the plug-in axis.

[0009] The carrying device according to the invention enables a continuous adjustment of the hollow sleeve relative to the lifting platform as well as a step-by-step adjustment of the carrying element relative to the hollow sleeve.

[0010] For continuous adjustment, the hollow bushing can have an external thread on the outside, by means of which the hollow bushing can be attached to the lifting platform in a continuously adjustable manner using a screwing movement. In particular, the hollow bushing can be displaced alone or together with the support element by means of a screwing movement along a screw axis. The hollow bushing can preferably be arranged on a support arm of a lifting platform, wherein the support arm has an internal thread corresponding to the external thread. In particular, the support arm can be arranged on the lifting platform so that it can pivot in a horizontal plane in order to be able to position the support device below the load to be lifted. By means of the screwing movement, the relative position of the support device with respect to the support arm of the lifting platform can be changed as required and in a freely adjustable manner.In particular, the continuous adjustment of the hollow sleeve enables fine adjustment of the position of the support element along the lifting axis of the lift. For step-by-step adjustment, the support element can be inserted into the hollow sleeve at different rotational positions and protrude from the hollow sleeve at different heights depending on the rotational position. This allows for a rough adjustment of the position of the support element along the lifting axis of the lift by inserting the support element into the hollow sleeve at different rotational positions.

[0011] The design according to the invention makes it possible to initially gradually move the support device, and in particular the position of the support element, along the lifting axis of the lifting platform from a first position to a desired second position, whereby a travel difference can remain between the support element and the load to be lifted. This travel difference can then be compensated for by a continuous adjustment to the second position. It is within the scope of the invention that the adjustment of the support element can also be performed in the reverse order, whereby a continuous adjustment is first performed, followed by a stepwise adjustment.

[0012] A screw axis can be defined by the course of the external thread and preferably extends parallel to a central axis of the hollow sleeve. The plug-in axis, along which the hollow sleeve and the support element can be joined by means of a linear plug-in movement, preferably runs parallel to the screw axis. In particular, the screw axis and the plug-in axis run parallel to the lifting axis of the lifting platform when the support device is in a state in which the hollow sleeve is attached to the lifting platform.

[0013] Within the scope of the invention, the stop element arranged in the cavity represents a means by means of which the insertion movement with which the support element can be introduced into the cavity can be limited, wherein a desired insertion depth can be set. In a simple embodiment, the stop element can have a stepped geometry with a first and a second step, which are arranged such that the support element rests on the first or the second step, depending on the relative rotational position about the insertion axis. It is of course within the scope of the invention for the support element to alternatively have the stepped geometry and rest on the stop element with the first step or the second step, depending on the rotational position. The insertion depth can basically be considered to be any distance along the insertion axis between any point on the support element and any point on the hollow sleeve.For example, the insertion depth can thus describe a distance between an upper hollow sleeve edge and a front end of the support element along the insertion axis. Preferably, the insertion depth can indicate a distance by which the support element protrudes from the hollow sleeve cavity in various rotational positions.

[0014] Within the scope of the invention, the support element represents a load-bearing structural component, which preferably has at least one contact surface through which an adjustment force and / or an adjustment movement of the lifting platform can be transmitted to the load to be lifted. The support element is not limited to a specific design.

[0015] In an advantageous further development, the support element comprises a support member which is in particular detachably connected to the support element and preferably has a support plate and / or a form-fitting element, in particular a support mandrel.

[0016] In a configuration in which the support element comprises a support plate, the plate can be coated with an adhesive material in order to non-positively secure a load resting thereon against slipping. In a configuration in which the support element has a form-fitting element, the element can have a geometry, at least in some regions, selected in such a way as to be able to receive a load in a centered manner and hold it in a form-fitting manner. As mentioned above, a support mandrel having a conical or cylindrical geometry can be used as the form-fitting element. However, the form-fitting element can be designed not only as a support mandrel, but also, for example, as a cuboid and / or as a bead and / or as a thin-walled web, each of which is intended to engage in a corresponding recess on the load to be lifted and to fix it in a form-fitting manner.It is also within the scope of the advantageous development that several form-locking elements are provided. Preferably, the support element is designed to be interchangeable. For this purpose, the support element and the support member can have two corresponding mechanical interfaces. For example, the support element can have a recess and the support member a corresponding elevation for detachable connection.

[0017] Within the scope of the invention, the hollow bushing represents a force-transmitting bearing element which serves to receive the support element and to connect the support element to the lifting platform. The adjusting force and / or adjusting movement exerted by the lifting platform can be transmitted to the support element by means of the hollow bushing. The hollow bushing is preferably designed as a substantially thin-walled and in particular rotationally symmetrical component. A circumferential inner wall delimits the cavity in the radial direction and preferably serves to guide the support element along the plug-in axis. The hollow bushing preferably has a base which closes the cavity on one side in the axial direction. The external thread preferably runs substantially over the entire height of the hollow bushing.Furthermore, the design of the hollow bushing in which an external thread is provided is not limited to a specific design of the external thread with a thread pitch or a thread type.

[0018] In an advantageous further development, the stop element has a recess, wherein the support element rests on the stop element in a first relative rotational position in the region of an edge of the recess and engages in the recess in a second relative rotational position.

[0019] An advantage of the above-described refinement is that the recess of the stop element can serve to guide the support element when it is inserted into the cavity of the hollow sleeve. This simplifies the step-by-step adjustment of the support device and allows the support device to retain its simple design. Furthermore, the adjustable insertion depths of the support element can be adjusted depending on the geometry of the recess.

[0020] In an advantageous development, the stop element is formed, at least in part, as a flat part, on the end face of which the recess is arranged, wherein the edge of the recess delimits a first support surface of the stop element, and wherein a base of the recess comprises a second support surface of the stop element. In the first relative rotational position, the support element rests on the first support surface. In the second relative rotational position, the support element engages in the recess and rests on the second support surface.

[0021] According to the above-described development, the first support surface and the second support surface limit the linear insertion movement of the support element relative to the hollow sleeve in the second and first rotational positions, respectively. Accordingly, at least two adjustable insertion depths can be defined structurally through the design of the stop element, in particular depending on the distance between the first and second support surfaces.

[0022] In an advantageous development, the support element and the stop element are rotated 90 degrees relative to each other between the first and second rotational positions. A step-by-step height adjustment of the support device can be achieved, for example, by removing a support element already inserted into the cavity along the plug-in axis from the cavity, rotating it 90 degrees relative to the hollow sleeve, and then inserting it into the cavity along the plug-in axis, increasing or decreasing the insertion depth compared to the original state.

[0023] In an advantageous development, the stop element is arranged in the cavity in an interchangeable manner. This makes it possible to provide a plurality of stop elements that can be selectively inserted into the cavity in order to adjust different insertion depths for the support element. The support element of the support device can preferably be designed to be interchangeable.

[0024] In another embodiment of the carrying device according to the invention, in addition to a carrying element designed to receive a load to be lifted and the hollow sleeve, which can be attached to the lifting platform in a continuously adjustable manner on the outside, the device also has a spacer element that can be arranged between the carrying element and the hollow sleeve. The hollow sleeve has a first cavity to receive the spacer element along a first insertion axis, wherein a first stop element arranged in the first cavity is designed such that a first insertion depth of the spacer element in the hollow sleeve is stepwise adjustable and the first insertion depth is dependent on a relative rotational position between the spacer element and the hollow sleeve. Furthermore, the spacer element has a second cavity to receive the carrying element with a second insertion depth.

[0025] Preferably, the support element and / or the hollow sleeve are designed in a manner corresponding to the support element and / or the hollow sleeve of the support device according to the invention, which does not have a spacer element. In this respect, the above statements regarding the advantageous embodiments of the support device according to the invention, in particular its hollow sleeve or its support element, apply accordingly.

[0026] In addition to the support element and the hollow bushing, the spacer element represents a component whose shape and dimensions are selected to allow the position of the support element relative to the lift to be gradually adjusted. This makes it possible to shorten the lifting path of a lift in which the support device is used, for example, when the load to be lifted is a vehicle with a high ground clearance. Advantageously, the spacer element between the support element and the hollow bushing can be removed as needed. This allows the support device to be adjusted to lift vehicles with a lower ground clearance.

[0027] The first insertion depth can be considered a relative position between the spacer element and the hollow bushing along the first insertion axis. The second insertion depth describes a relative position between the support element and the spacer element, in particular along a second insertion axis or a guide axis, which are explained in detail below. The second insertion depth can be determined by design and can be independent of the relative rotational position between the support element and the spacer element.In an advantageous further development, however, the second cavity is designed to receive the support element along a second insertion axis, wherein a second stop element arranged in the second cavity is designed such that the second insertion depth of the support element in the second cavity is stepwise adjustable and the second insertion depth is dependent on a relative rotational position between the support element and the spacer element about the second insertion axis.

[0028] Preferably, the spacer element is designed to be at least partially identical to a region of the hollow bushing into which the support element can be inserted in order to set a rotational position-dependent first insertion depth. In particular, the spacer element can have a bushing section and a plug-in section, wherein the plug-in section is provided to be received in the first cavity of the hollow bushing and the bushing section has the second cavity to receive the support element. In particular, the spacer element can be designed in the manner of a stepped cylinder, wherein the plug-in section has a smaller radial dimension than the bushing section. Preferably, the support element and the spacer element can be joined as needed by means of a rectilinear plug-in movement along the second plug-in axis and separated from one another in the opposite direction of movement.

[0029] In a further advantageous development, the support element is preferably adjustably guided in the spacer element along a guide axis. At least one spring element is provided to exert a spring force along the guide axis on the support element in a tensioned state.

[0030] One advantage of using a spring element is that when the carrying device is lifted using the lifting platform, contact can be established between the carrying element and the load to be lifted even before the load is lifted. This makes it easy to check whether the carrying element is in the desired position to lift the load safely. If the carrying element is designed as a carrying mandrel or another form-fitting carrying member, the spring element can be used to establish form-fitting contact with the load to be lifted even before the load is lifted, making the lifting movement particularly safe. In particular, legal requirements in the area of ​​vehicle lifting platforms, which often require this type of form-fitting connection, can be implemented in a particularly uncomplicated manner.

[0031] Preferably, more than one spring element is provided to exert the spring force on the support element. In particular, two spring elements can be provided, which are in particular mechanically connected in series. These two spring elements can be mechanically coupled to one another by means of a force transmission element. The force transmission element can in particular be a bolt, at the ends of which the two spring elements are arranged, with one of the spring elements being supported against the spacer element and the other of the spring elements being supported against the support element. In this case, the force transmission element enables the lengths of the spring elements and their spring travel to be selected and adjusted as required.

[0032] In the advantageous development of the support device, which comprises the spring element, the second insertion depth can be regarded as a relative position between the support element and the spacer element in which the spring element is fully compressed. In this case, the support element can rest on the spring element and preferably on the second stop element, which is arranged in the second cavity. It is within the scope of the advantageous development that the support element can be removed from the spacer element and can be inserted into the spacer element along the second insertion axis with a second insertion depth that is dependent on the rotational position. It is also within the scope of the advantageous development that the second insertion depth is independent of the relative rotational position between the support element and the spacer element, in particular wherein the spacer element and the support element are designed so that they cannot be rotated relative to one another.

[0033] In an advantageous development, the spacer element is sleeve-shaped and has at least one guide slot into which a guide pin of the support element engages and which limits a guide path of the support element along the guide axis relative to the spacer element. In particular, several, in particular two, guide slots can be provided, which are distributed over the circumference of the sleeve-shaped spacer element.

[0034] The guide slot can serve to relieve the load on the spacer element arranged in the support element and to increase the accuracy of the adjustment movement of the support element. Preferably, the guide slot and the guide pin are designed to cooperate in such a way as to prevent the support element from detaching from the spacer element. Preferably, the guide slot and the guide pin are designed to cooperate in such a way as to prevent relative rotation between the support element and the spacer element.

[0035] In an advantageous further development, the spacer element is sleeve-shaped and has two circumferentially offset slots with different slot depths at one axial end. The stop element of the hollow sleeve engages in one of the slots depending on the relative rotational position between the spacer element and the hollow sleeve. This makes it structurally simple to adjust the rotational position-dependent first insertion depth of the spacer element in the hollow sleeve.

[0036] As mentioned above, the invention also relates to a lifting platform, which is particularly designed as a vehicle lift. The lifting platform according to the invention comprises at least one lifting column and a support arm, which is movable along a lifting axis of the lifting column and on which a support device according to the invention or an advantageous development thereof is arranged.

[0037] By means of the lifting platform according to the invention, it is possible to adjust the height of the support devices arranged thereon in a structurally simple manner. The hollow sleeve is held on the support arm in a continuously adjustable manner. In particular, the hollow sleeve can have an external thread and the support arm a corresponding internal thread, so that at least the hollow sleeve can be continuously adjusted relative to the support arm by means of a screwing movement along a screw axis. When the support element rotates relative to the hollow sleeve, the support element can be adjusted stepwise relative to the hollow sleeve and the support arm along the lifting axis. Furthermore, by arranging the support device on the support arm, essentially the same advantages can be achieved that have already been described with regard to the support device according to the invention and its advantageous developments.Preferably, the lifting platform has a plurality of support devices according to the invention or their advantageous developments.

[0038] Further advantages of the invention are explained below using an embodiment and the figures.

[0039] It shows

[0040] Figure 1 shows the carrying device on a carrying arm of a lifting platform, in which a carrying element is inserted into a hollow sleeve with an insertion depth dependent on the rotational position;

[0041] Figure 2 shows the carrying device on the carrying arm of the lifting platform, in which a carrying element with a different insertion depth depending on the rotational position is inserted into a hollow sleeve;

[0042] Figure 3 two sectional views AA and BB of the carrying device;

[0043] Figure 4 the carrying device;

[0044] Figure 5 the hollow sleeve of the carrying device;

[0045] Figure 6 a support mandrel;

[0046] Figure 7 shows the carrying device with a first embodiment of a

[0047] spacer element arranged between the hollow sleeve and the support element;

[0048] Figure 8 shows the first embodiment of the spacer element;

[0049] Figure 9 shows a second embodiment of the spacer element with a support element in views a) and b); Figure 10 shows the second embodiment of the spacer element with the

[0050] Support element in an exploded view;

[0051] Figure 11 two sectional views AA and BB of the second embodiment of the spacer element with the support element.

[0052] Figure 1 shows a carrying device 1 mounted on a carrying arm 2 of a vehicle lifting platform. The lifting platform serves to move the carrying arm 2 together with the carrying device 1 parallel to a lifting axis 3. The carrying device 1 has a carrying element 4, which comprises a flat carrying plate and serves to lift a load (not shown here) into a desired position by means of a movement along the lifting axis 3, to hold it in this position, and to lower it again if necessary.

[0053] Due to the different designs of vehicles to be lifted using the vehicle lift, it may be necessary to be able to adjust the height of the support device 1 relative to the support arm 2. To enable the height adjustment to be carried out quickly and with minimal effort, the support device 1 shown in Figure 1 can be adjusted both continuously and in steps parallel to the lifting axis 3.

[0054] For continuous adjustment, the support device 1 has a hollow sleeve 5 with an external thread 6. The external thread 6 serves, on the one hand, to fasten the support device 1 to the support arm 2, and, on the other hand, to effect a continuous displacement of the hollow sleeve 5 along a screw axis 12 (see Figure 3) by means of a screw movement 7. As a result, the hollow sleeve 6 can be adjusted in height, either alone or together with the support element 4, essentially parallel to the lifting axis 3 and continuously, i.e., continuously.

[0055] In addition, a step-by-step adjustment is also possible. For this purpose, the hollow sleeve 5 has a cavity 14 (see Figure 3) which is designed to accommodate the support element 4 by means of a linear insertion movement 8. Arranged in the cavity 14 is a stop element 15 (see Figure 3), which is designed such that an insertion depth 10 of the support element 4 in the cavity 14 can be adjusted step by step depending on a relative rotational position between the support element 4 and the hollow sleeve 5 about the insertion axis 13 (see Figure 3). In other words, the support element 4 can be removed from the cavity 14 of the hollow sleeve 5 as needed, rotated relative to the hollow sleeve 5 by means of a rotational movement 9, and reinserted into the cavity 14.By rotating the support element 4 relative to the hollow sleeve 5, it is possible to gradually change the insertion depth 10 such that an insertion depth 11 shown in Figure 2 can be set, at which the support element 4 projects deeper into the cavity 14 of the hollow sleeve 5 than according to Figure 1.

[0056] Figure 3 shows the structure of the carrying device 1, by means of which the continuous and step-by-step adjustment described above can be achieved. The carrying device 1 shown in Figure 3 is the same carrying device 1 that is also shown in Figures 1 and 2. View AA is a first sectional view of the carrying device 1. View BB represents a second sectional view of the carrying device 1, rotated by 90 degrees.

[0057] As already explained with reference to Figures 1 and 2, the carrying device 1 comprises a carrying element 4, which is designed to receive a load to be lifted, and a hollow bushing 5, which has an external thread 6, by means of which the hollow bushing 5 can be fastened to the lifting platform and can be continuously adjusted along a screw axis 12 by means of a screwing movement 7 (see Figures 1 and 2). The hollow bushing 5 further has a cavity 14 in order to receive the carrying element 4 by means of the rectilinear insertion movement 8 (see Figures 1 and 2) along a insertion axis 13, which in this case runs parallel to the screw axis 12. A stop element 15 arranged in the cavity 14 is designed such that an insertion depth 10, 11 (see Figures 1 and 2) of the carrying element 4 can be adjusted in steps. The insertion depth 10, 11 depends on the relative rotational position between the support element 4 and the hollow bushing 5 around the insertion axis 13.

[0058] The stop element 15 has a recess 16. In a first relative rotational position, the support element 4 rests on the stop element 15 in the region of an edge of the recess 16. In a second relative rotational position, the support element 4 engages in the recess 16. In the arrangement shown in Figure 3, the support element 4 is in the second rotational position relative to the hollow bushing 5.

[0059] The stop element 15 is essentially formed as a flat part, on the end face of which the recess 16 is arranged. The edge 17 of the recess 16 borders a first support surface 18 of the stop element 15.

[0060] A base of the recess 16 forms a second support surface 19 of the stop element 15. The support element 4 is partially formed as a flat part, which rests on the second support surface 19 in the second rotational position. In the first rotational position, the support element 4 rests on the first support surface 18.

[0061] The stop element 15 is designed as a replaceable part and can be removed from the cavity 14 of the hollow sleeve 5 and reinserted therein as required.

[0062] Figure 4 shows the carrying device 1, which is also shown in Figures 1 to 3. Therefore, the statements relating to Figures 1 to 3 apply accordingly.

[0063] Figure 5 shows the hollow bushing 5 with the cavity 14 and the spacer element 15 arranged therein with the recess 16 and the external thread 6.

[0064] Figure 6 shows a support element 4 with a support mandrel 20. With the exception of the support mandrel 20, the support element 4 is designed in accordance with the support element 4 shown in Figures 1 to 4. Thus, the statements regarding Figures 1 to 4 apply accordingly.

[0065] Figure 7 shows a carrying device 1 comprising the same components as the carrying device 1 according to Figures 1 and 2. However, in contrast to the arrangement according to Figures 1 and 2, a spacer element 21 is arranged between the carrying element 4 and the hollow sleeve 5. By means of the spacer element 21, a step-wise adjustment of the carrying device 1 along the lifting axis 3 can also be achieved.

[0066] As shown in Figure 8, the spacer element 21 has a plug-in section 22 which is designed to be received along the plug-in axis 13 in the cavity 14 of the hollow sleeve 5, wherein the stop element 15 arranged in the cavity 14 is designed such that a second plug-in depth 23 (cf. Figure 7) of the plug-in section 22 in the cavity 14 can be adjusted in steps. The second plug-in depth 23 depends on a relative rotational position between the spacer element 21 and the hollow sleeve 5 about the plug-in axis 13.

[0067] In the present case, the second insertion depth 23 of the insertion section 22 in the hollow sleeve 5 can be adjusted in the same way as the insertion depth 10, 11 of the support element 4 in the hollow sleeve 5.

[0068] Furthermore, the spacer element 21 has a bushing section 24 with a second cavity 25 for receiving the support element 4 along a second insertion axis 26, wherein a second stop element (not shown) arranged in the second cavity 25 is arranged such that a second insertion depth 27 (cf. Figure 7) of the support element 4 in the second cavity 23 can be adjusted in steps. The second insertion depth 27 depends on a relative rotational position between the support element 4 and the spacer element 21 about the second insertion axis 26.

[0069] In the present case, the second insertion depth 27 in the sleeve section 24 can be adjusted in the same way as the insertion depth 10, 11 of the support element 4 in the hollow sleeve 5.

[0070] Figure 9 shows in views a) and b) a second embodiment of a spacer element 21 with a support element 4.

[0071] The support element 4 is designed, as already described, to receive a load to be lifted. The spacer element 21, as also already described, serves to be arranged between the support element 4 and a hollow bushing (not shown). The hollow bushing can, for example, be designed as described in FIG. 3 and have a first cavity for receiving the spacer element 21 by means of a rectilinear insertion movement along a first insertion axis. A first stop element arranged in the first cavity is designed such that a first insertion depth of the spacer element 21 in the hollow bushing can be adjusted stepwise and depending on a relative rotational position between the spacer element and the hollow bushing. The spacer element 21 has a second cavity for receiving the support element with a second insertion depth 27.

[0072] The support element 4 has a recess on an upper side in order to be able to accommodate a support member, if required, which can have the shape of a support plate or a form-fitting element, e.g. a support mandrel or a comparable support member.

[0073] As shown in more detail in Figures 10 and 11, the support element 4 is adjustably guided in the spacer element 21 along a guide axis 28. Two spring elements are provided to exert a spring force along the guide axis 28 on the support element 4 in a tensioned state. This makes it possible, when lifting the support device using the lifting platform, to create contact between the support element and the load to be lifted even before the load is lifted. This makes it easy to check whether the support element is in the desired position or not. If the support element 4 has a support mandrel or other form-fitting support member, a form-fitting contact can be established by means of the spring before the load is lifted, by means of which contact the lifting movement can be carried out particularly safely.In particular, legal requirements in the area of ​​vehicle lifting platforms can be implemented in a particularly simple manner, as these often require such a form fit.

[0074] As can be seen from both views a) and b) according to Figure 9, the support element 4 is sleeve-like and has two guide slots 29, in each of which a guide pin 30 of the support element 4 engages and limits a guide path of the support element along the guide axis 28 relative to the spacer element 21.

[0075] Furthermore, the spacer element 21 has, at an axial end facing away from the support element 4, two circumferentially offset slots 31 having different slot depths 32. When the spacer element 21 is arranged in the hollow sleeve, the stop element arranged in the hollow sleeve engages in one of the slots depending on the relative rotational position between the spacer element 21 and the hollow sleeve 5, whereby the first insertion depth can be adjusted.

[0076] Figure 10 shows the second embodiment of the spacer element 21 with the support element 4 in an exploded view. To avoid repetition, reference is made to the explanations for Figure 9. As explained with reference to Figure 9 and can be seen from Figure 10, two spring elements 33, 34 are arranged between the spacer element 21 and the support element 4, which are mechanically coupled to one another by means of a force transmission element 35. In the tensioned state, the spring elements 33, 34 serve to exert a spring force on the support element 4 along the guide axis 28.

[0077] Figure 11 shows the second embodiment of the spacer element 21 in sectional views AA and BB, which are rotated 90 degrees relative to each other. The explanations regarding Figures 9 and 10 apply accordingly.

Claims

Claims 1. A support device (1) for a lifting platform, comprising a support element (4) designed to receive a load to be lifted, and a hollow bushing (5) which can be attached to the lifting platform in a continuously adjustable manner on an outer side, and in which the hollow bushing (5) has a cavity (14) for receiving the support element (4) by means of a rectilinear insertion movement (8) along a plug-in axis (13), wherein a stop element (15) arranged in the cavity (14) is designed such that an insertion depth (10, 11) of the support element (4) in the hollow bushing (5) can be adjusted in steps, and the insertion depth (10, 11) is dependent on a relative rotational position between the support element (4) and the hollow bushing (5) about the plug-in axis (13).

2. Carrying device (1) according to claim 1, wherein the hollow sleeve (5) has an external thread (8) on the outside, by means of which the hollow sleeve (5) can be attached to the lifting platform in a continuously adjustable manner during a screwing movement.

3. Carrying device (1) according to claim 1 or 2, wherein the stop element (15) has a recess (16), wherein the carrying element (4) rests in a first relative rotational position on the stop element (15) in the region of an edge (17) of the recess (16) and engages in the recess (16) in a second relative rotational position.

4. Carrying device (1) according to claim 3, in which the stop element (15) is formed at least in part as a flat part, on the end face of which the recess (16) is formed, wherein the edge (17) of the recess (16) is connected to a first support surface (18) of the stop element (15) and a second support surface (19) of the stop element is formed at the base of the recess (16), wherein the support element (4) rests on the first support surface (18) in the first relative rotational position and engages in the recess (16) in the second relative rotational position and thereby rests on the second support surface (19).

5. Carrying device (1) according to one of the preceding claims, wherein the carrying element (4) and the stop element (15) are rotated by 90 degrees to each other between the first and the second rotational position.

6. Carrying device (1) according to one of the preceding claims, wherein the stop element (15) is arranged replaceably in the cavity (14).

7. Carrying device (1) according to one of the preceding claims, wherein the carrying element (4) is replaceable.

8. Carrying device (1) according to one of the preceding claims, in which the carrying element comprises a carrying member which is in particular detachably connectable to the carrying element and is preferably designed as a carrying plate and / or as a form-fitting element, in particular as a carrying mandrel (20).

9. A support device (1) for a lifting platform with a support element (4) which is designed to receive a load to be lifted, and with a hollow bushing (5) which can be fastened to the lifting platform in a continuously adjustable manner on an outer side, and a spacer element (219) which can be arranged between the support element (4) and the hollow bushing (5), wherein the hollow bushing (5) has a first cavity (14) in order to receive the spacer element by means of a rectilinear insertion movement along a first insertion axis (12), wherein a A first stop element (15) is designed such that a first insertion depth (10, 11) of the spacer element (4) in the hollow bushing (5) is adjustable in steps and the first insertion depth (10, 11) is dependent on a relative rotational position between the spacer element (4) and the hollow bushing (5), and wherein the spacer element (21) has a second cavity (25) in order to receive the support element (4) with a second insertion depth (27).

10. Carrying device according to claim 9, wherein the second cavity (25) is designed to receive the support element (4) along a second insertion axis (26), wherein a second stop element arranged in the second cavity (25) is designed such that the second insertion depth (27) of the support element (4) in the second cavity (25) is adjustable in steps and the second (27) is dependent on a relative rotational position between the support element (4) and the spacer element (21) about the second insertion axis (26).

11. Carrying device (1) at least according to claim 9, wherein the carrying element (4) is adjustably guided in the spacer element (21) along a guide axis (28) and at least one spring element (33, 34) is provided in order to exert a spring force along the guide axis (28) on the carrying element (4) in a tensioned state.

12. Carrying device (1) at least according to claim 11, wherein the carrying element (4) is sleeve-like and has at least one guide slot (29) into which a guide pin (30) of the carrying element (4) engages and limits a guide path of the carrying element (4) along the guide axis (28) relative to the spacer element (21).

13. Carrying device (1) at least according to claim 9, wherein the spacer element (21) is sleeve-like and has at one axial end two circumferentially offset slots (31) which have different slot depths (32), wherein the first stop element (15) of the hollow sleeve engages in one of the slots (31) depending on the relative rotational position between the spacer element (21) and the hollow sleeve (5).

14. Lifting platform, in particular a vehicle lifting platform, with at least one lifting column and a support arm (2) which is movable along a lifting axis (3) of the lifting column and has an internal thread on which a support device (1) according to one of claims 1 to 12 is adjustably arranged.

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