WO2004035967A1 - Lifting device for a motor vehicle - Google Patents

Abstract

According to the invention, a vehicle (5) can be lifted from a support surface (4) without the use of conventional lifting or conveying gear, whereby a lifting device (1) for a vehicle (5), standing in the region of the contact patches (8) of the wheels (6) thereof on a support surface (4) is disclosed, characterised by a support device (2), which may be displaced perpendicular to the wheels (6), a moving track (7), arranged thereon for the contact patch (8) of a wheel (6), a retaining device (9), which may be moved along the moving track (7) for the wheel (6) standing on the moving track (7) and a lifting device (16) for the wheel (6) which may be placed against a wheel (6) from beneath to both sides of the contact patch (8) and which may be displaced in the direction of the moving track (7) between a withdrawn and an extended position and additionally between a lowered and a raised position.

Description

 RECEIVING DEVICE FOR A VEHICLE

The invention relates to a receiving device for a vehicle, in particular a motor vehicle, standing on a wing in the area of the contact patches of its wheels.

When vehicles are standing on a wing, it is extremely difficult to lift them, for example to place them on a mobile underframe. This usually requires a crane or a similar tool, and these devices are complex, take up a lot of space and are not always available.

It is an object of the invention to provide a receiving device with which a vehicle can be easily picked up from a wing without using a conventional lifting or conveying device, for example a crane or a forklift, in particular around the vehicle then with the aid of the receiving device to move to another place.

This object is achieved according to the invention by a receiving device of the type described at the outset, which is characterized by a support device which can be displaced transversely to the wheels, a sliding track arranged thereon for the contact surface of a wheel, and a retaining device which can be moved along the sliding track for the wheel standing on the sliding track and by a lifting device for the wheel, which can be placed against a wheel from below on both sides of the contact surface and in the direction of the sliding path between a retracted and an advanced one Position and is also displaceable between a lowered and a raised position.

In the case of such a receiving device, it can be pushed laterally onto a wheel of the vehicle to be picked up, the lifting device standing in the advanced and lowered position can be inserted into the gusset between the wing and peripheral surface of the wheel, and the wheel can then be raised by lifting the lifting device. In the raised state, the lifting device is then pushed back relative to the sliding track in its direction, and the lifted wheel comes into a position above the sliding track, so that the wheel is placed on the sliding track when the lifting device is subsequently lowered. The wheel can then be advanced along this displacement path if the carrying device is pushed further under the vehicle.

The same procedure can be used on the opposite wheel until the vehicle is on the sliding track with both wheels of one axle.

In a preferred embodiment it is provided that the lifting device comprises support elements arranged on both sides of the sliding track, which are inserted in the advanced and lowered position between the support surface and the peripheral surface of the wheel.

In particular, the support elements can be arranged at the free end of a swivel arm arranged parallel to the sliding path, the pivot axis of which runs transversely to the sliding path. By pivoting the swivel arm, the support elements are moved between the raised and lowered positions. The swivel arms can be extended and shortened so that the displacement of the support elements from the advanced position to the retracted position and vice versa can take place.

In a particularly preferred embodiment it is provided that the displacement movements of the lifting device between the retracted and the advanced position in the raised position and the restraint device take place in the same direction and at the same speed. This enables a jerk-free transfer of the wheel between the lifting device and the restraint device. In addition, in a vehicle that is already completely on the sliding track with one wheel, it is ensured that a transfer between the restraint device and the lifting device can be accomplished smoothly and smoothly even with the second wheel of an axle is.

In particular, the restraint device can be displaced in the opposite direction synchronously with the advancing movement of the carrying device with the same advancing speed, so that when the carrying device is pushed forward, the restraining device remains as stationary with respect to the wing surface as the picked-up vehicle until it is finally completely received on the displacement track.

The sliding track can be rigidly arranged on the carrying device, but it is advantageous if the sliding track is mounted so that it can be raised on the carrying device. It is then possible to transfer a wheel from the wing to the sliding track with relatively small differences in height, so that the stroke of the lifting device can be limited. The sliding track can be mounted on the carrying device so as to be pivotable about a pivot axis arranged transversely to its longitudinal axis. In particular, it can also be provided that the sliding track can be lowered at one end up to the wing, so that only a relatively small step remains, via which the lifting device has to lift the wheel.

The pivot axis can be arranged in the central region of the sliding track, so that there is a symmetrical structure.

In another embodiment, it can be provided that two pivot bearings arranged at a distance from one another are provided for the sliding track, which can optionally be released or fixed in such a way that only one of the pivot bearings forms a pivot axis in each case. The selection can be made, for example, by inserting or pulling out a bearing shaft. In this way, the swivel angle can be reduced for a certain height difference. In addition, the swivel bearing can be swiveled to the left or right by selecting it.

It is particularly advantageous if the carrying device can be moved on the carrying surface, that is to say it is held on the carrying surface by means of wheels, so that the carrying device can be brought into a different position on the carrying surface after the vehicle has been picked up, for example in the context of a parking facility, in which vehicles can be stored on such carriers and driven to the parking space. The supporting elements can be adjustable in their mutual spacing, so that they can be adapted to the circumference of the wheel to be lifted by adjusting the spacing. In a first preferred embodiment it is provided that the sliding track is formed by the upper run of a conveyor belt, which is supported all the way along the sliding track.

In another embodiment, the sliding track can be formed by a roller track.

Both the conveyor belt and the roller conveyor can be designed to rotate freely, the advancement of the vehicle along the sliding path then takes place exclusively through the retaining device which moves the wheel along the sliding path.

In particular, the retaining device can be a driver that can be inserted behind a wheel and can be placed on the rear of the wheel. It is also advantageous if the restraint device additionally comprises a driver which can be placed on the front of a wheel, and this can then ensure that the vehicle is pushed down again from the sliding path when the vehicle is to be returned from the carrying device to the wing. Both drivers can rest on the same wheel or on different wheels, for example, both drivers can rest on the inside of the two wheels of an axle.

In a particularly preferred embodiment, the retaining device is formed by the conveyor belt itself. Such a conveyor belt, which can be designed, for example, as a chain belt or as a circumferential rubber band, rests against the underside of the wheels and takes them along with friction, possibly also by drivers engaging behind the wheel. In this case, the conveyor belt is driven, so that the conveyor belt is therefore a double Function fulfilled, namely the formation of the sliding track and the formation of the restraint device.

Preferably, the length of the sliding track is slightly larger than the width of the vehicle, so that the receiving device on the one hand has a small size and on the other hand is suitable for receiving vehicles of different types. However, it is also possible to use a shorter sliding track, in which case the vehicle laterally protrudes beyond the sliding track after the recording.

Two or more sliding tracks can be arranged at a distance from one another on a receiving device, so that the wheels of the front and rear axles can be picked up simultaneously. With more than two sliding tracks, this also enables vehicles with different center distances to be accommodated; alternatively or additionally, the distances between the sliding tracks can be adjusted relative to one another in order to enable adaptation to different center distances.

It is also possible to use two holding devices of the same type for holding different wheels of a vehicle and to couple them by means of a control system in such a way that the feed movements of the carrying devices and the retaining devices of both holding devices run in a coordinated manner. This can basically be done on opposite wheels of one axle as well as on wheels on different axles.

If, according to a preferred embodiment, a lifting device is arranged at both ends of the sliding track, the receiving device can be Use the direction to pick up vehicles on your left or right side.

The following description of preferred embodiments of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:

Figure 1: a receiving device for receiving a vehicle standing on a wing;

Figure 2 is a side view of a wheel in the raised position;

Figure 3 is a partial view similar to the illustration of Figure 1 with the lifting device in the retracted position when lowering the wheel on the sliding track;

FIG. 4: a view similar to FIG. 1 with a wheel placed on the sliding track and with the opposite wheel after being picked up on the lifting device;

FIG. 5: a view similar to FIG. 4 with the vehicle completely placed on the sliding track;

FIG. 6: a view similar to FIG. 2 with the wheel placed on the sliding track and the lifting device lowered; Figure 7 is a schematic side view of a receiving device with two possible pivot bearings when lowering the sliding path to the right and

Figure 8 is a view similar to Figure 7 when lowering the sliding path to the left.

The receiving device 1 shown in the drawing comprises a flat frame 2 with wheels 3, which can be moved on a wing 4, on which there is also a vehicle 5, in the exemplary embodiment shown a motor vehicle, with wheels 6.

A sliding track 7 is arranged on the frame 2 and extends transversely to the axis of rotation of the wheels 6. The sliding path is formed by a revolving conveyor belt 9, this conveyor belt 9 is guided around two deflection rollers 10, 11, and the upper run 12 of the conveyor belt 9 is supported between the deflection rollers 10 by means not shown in the drawing. The deflection rollers 10, 11, the support means and the conveyor belt 9 are arranged overall on a carrier 13 which is pivotally mounted on the frame 2 about a pivot axis 14 which runs parallel to the axis of rotation of the wheels 3, the pivot axis 14 being located in the middle between the Wheels 3 and in the middle between the deflection rollers 10 and 11. Due to the pivotable arrangement, it is possible to lower the conveyor belt 9 approximately on one side up to the wing 4, so that a low overall height is achieved in this area, the upper run 12 is located then in the area of the lowered deflection roller 11 at a short distance from the wing 4. A modified embodiment is shown in FIGS. 7 and 8, which forms two pivot bearings at a distance from one another, which can optionally be fixed or released, for example by inserting and withdrawing a bearing shaft. It is thereby possible to pivot the sliding track 7 either about a first pivot axis 14a or a second pivot axis 14b. These pivot bearings can be located in the end sections of the sliding track 7, so that relatively small pivoting angles are necessary to achieve a certain lifting height of the free end of the sliding track. By selecting one of the two pivot axes 14a or 14b, the receiving device can be converted either for receiving on the left side or on the right side, as is clear from the illustrations in FIGS. 7 and 8.

The conveyor belt 9 is driven by a drive, the frame 2 can also be driven by a drive, these drives can be synchronized so that the rotational speed of the conveyor belt 9 is the same as the driving speed of the wheels 3, but the direction is chosen so that the feed movement of the frame 2 is opposite to the direction of movement of the upper run 12 of the conveyor belt 9. In other words, when the frame 2 is advanced on the support surface 4, the upper run 12 remains not displaced relative to this support surface 4, since the run 12 moves in the opposite direction relative to the frame 2 at the same speed.

The sliding track could also be designed as a roller conveyor, the rollers being driven in the same way as the conveyor belt. On both sides of the sliding track, pivot arms 16 are mounted about a pivot axis 15 which runs parallel to the pivot axis 14 and which bear at their free end an abutment shoe 17 which is approximately triangular in cross section. This swivel arms 16 can be pivoted by a drive, not shown in the drawing, between a lowered position in which the contact shoes 17 rest on the wing 4 and a raised position in which the contact shoes 17 on the underside of a wheel 6 on either side of one Contact surface 8 of the wheel and lift it off the wing 4 (Figure 2). The contact shoes 17 are not only adjustable in height, but they can also be adjusted in the direction of the double arrows shown in FIG. 2 in their mutual distance, so that they can be adapted to different wheel sizes. To lift the system shoes 17 are moved up to the wheel circumference of the wheel to be lifted and raise it when they themselves are moved upwards. In the illustration in FIG. 2, a small gap is left between the contact shoe 17 and the raised wheel for clarification, but the contact shoes 17 actually lie close to the wheel when they are lifted, so that there is no such gap.

The swivel arms 16 can be extended and shortened by suitable means (not shown in the drawing); in the extended, extended position, the contact shoes 17 are in front of the sliding track 7 (FIG. 1), in the shortened, pushed-back position, however, next to the end of the sliding track 7 (Figure 3).

In order to be able to pick up a vehicle 5 standing on the supporting surface 4 with the receiving device, the displacement track 7 is first lowered on the side facing the vehicle 5; arms 16 lowered and extended so that the plant shoes 17 are in the extended lowered position. In this position, it is possible to insert the contact shoes 17 on both sides of the contact surface 8 of the wheel 6 between this wheel and the supporting surface 4, the sliding path 7 ends shortly before the wheel 6 to be picked up, while the contact shoes 17 are located below the wheel 6 to be picked up are, this position is shown in Figures 1 and 2 with dashed lines of the plant shoes 17. Furthermore, the mutual distance between the contact shoes 17 is adjusted in a suitable manner to adapt to the size of the wheel.

By pivoting the swivel arms 16 upwards, the contact shoes 17 are placed on the underside of the wheel 6 and finally lift this off the wing 4, this is shown in the illustration of FIGS. 1 and 2 with solid lines of the contact shoes 17.

The wheel 6 is raised so high in this raised position that the sliding track 7 can be inserted into the space between the wing 4 and wheel 6. This insertion takes place simultaneously with a shortening of the swivel arms 16 and thus a movement of the contact shoes 17 into the inserted position. The movement of the frame 2 can be done by a drive that works synchronously and in opposite directions with the shortening of the swivel arm 16, but it is also possible in principle that the frame 2 is pulled under the wheel 6 solely by shortening the swivel arm 16 without its own travel drive.

Due to the shortening of the swivel arm 16, the raised wheel 6 is pushed over the end of the sliding track 7, and in this position the swivel arm 16 is swiveled down again, so that the contact shoes 17 get into their lowered position. Here, the wheel 6 with its contact surface 8 sits on the sliding track 7, along which the wheel 6 is now moved when the frame 2 is pushed further under the vehicle 5. This shift occurs through the rotation of the conveyor belt 9.

In order to be able to push the frame 2 completely under the vehicle 5, the frame 2 is moved at the same speed and with the reverse feed direction as the conveyor belt 9, this can be done by separate, synchronously operating drives, but it is also possible in principle that the conveyor belt 9 itself moves the frame 2 relative to the vehicle 5, which is still resting on the wing 4 with its second wheel.

In the case of the opposite wheel, the bearing shoes 17 can drive under it in the same way and then pick it up and place it on the sliding track 7. As soon as the vehicle 5 completely rests on the sliding track 7, it can be moved along the sliding track at any speed, for example for centering purposes, and then it makes sense to pivot the sliding track 7 horizontally, as shown in FIG. 5.

To park the vehicle, proceed in the reverse order.

It is advantageous if, according to the embodiment shown, swivel arms 16 with contact shoes 17 are arranged on both sides of the sliding track 7, so that the receiving device 1 can be used either to the left or to the right. The lifting device is realized in the embodiment shown in Figures 1 to 6 by the swivel arms 16 with the contact shoes 17, in principle it would also be possible to raise and lower the contact shoes 17 by other means and to move in the direction of the sliding path, the swivel arms are one advantageous solution, but other mechanical means are also available to the person skilled in the art for the movement of the system shoes.

With the described recording device 1 it is possible to place the wheels of the picked-up vehicle with their footprint 8 on a sliding track arranged directly in the middle under the wheels, so that this recording device 1 can also be used without problems if the wheels are defective, for example in the case of a pneumatic tire where the air has escaped.

Claims

PATENT CLAIMS 1. Pick-up device (1) for a vehicle (5) standing in the area of footprints (8) of its wheels (6) on a support surface (4), characterized by a support device (2) displaceable transversely to the wheels (6) said sliding track (7) for the contact surface (8) of a wheel (6), by means of a retaining device (9) which can be moved along the sliding track (7) for the wheel (6) standing on the sliding track (7) and by a lifting device (16 ) for the wheel (6), which can be placed from below on both sides of the contact surface (8) on a wheel (6) and in the direction of the sliding path (7) between a retracted and an advanced position and additionally between a lowered and a raised position is adjustable. 2. Recording device according to claim 1, characterized in that the lifting device (16) on both sides of the sliding track (7) comprises supporting elements (17) which, in the advanced and lowered position, between the supporting surface (4) and the peripheral surface of the wheel (6) are inserted. Receiving device according to claim 1 or 2, characterized in that the supporting elements (17) are arranged at the free end of a swivel arm (16) arranged parallel to the sliding track (7), the swivel axis (15) of which extends transversely to the sliding track (7). 4. Recording device according to claim 3, characterized in that the swivel arm (16) can be extended and shortened. Receiving device according to one of claims 2 to 4, characterized in that the supporting elements (17) are adjustable in their mutual spacing. Pick-up device according to one of the preceding claims, characterized in that the displacement movements of the lifting device (16) between the retracted and the advanced position in the raised position and the restraint device (9) take place in the same direction and at the same speed. 7. Recording device according to one of the preceding claims, characterized in that the retaining device (9) is displaceable synchronously with the feed movement of the carrying device (2) with the same feed speed but in the opposite direction. 8. Receiving device according to one of the preceding claims, characterized in that the sliding track (7) on the carrying device (2) is mounted such that it can be raised. Receiving device according to claim 8, characterized in that the sliding track (7) is mounted on the carrying device (2) so as to be pivotable about a pivot axis (14) arranged transversely to its longitudinal axis. 10. Recording device according to claim 9, characterized in that the sliding track (7) can be lowered at one end up to the supporting surface (4). 11. Recording device according to claim 9 or 10, characterized in that the pivot axis (14) is arranged in the central region of the sliding track (7). 12. Receiving device according to claim 9 or 10, characterized in that two spaced-apart pivot bearings are provided for the sliding track (7), which can be optionally released or set such that only one of the pivot bearings has a pivot axis (14a, 14b) formed. 13. Recording device according to one of the preceding claims, characterized in that the carrying device (2) on the supporting surface (4) can be moved. 14. Receiving device according to one of the preceding claims, characterized in that the sliding track (7) is formed by the upper run (12) of a conveyor belt (9) which is circumferentially supported along the sliding track (7). 15. Recording device according to one of claims 1 to 13, characterized in that the sliding track (7) is formed by a roller conveyor. 16. Receiving device according to one of the preceding claims, characterized in that the retaining device is a driver which can be inserted behind a wheel (6) and can be placed on the rear of the wheel (6). 17. Receiving device according to claim 16, characterized in that the retaining device additionally comprises a driver which can be placed on the front of a wheel (6). 18. Recording device according to claim 14, characterized in that the retaining device is formed by the conveyor belt (9) itself. 19. Recording device according to one of the preceding claims, characterized in that the length of the sliding track (7) are slightly larger than the width of the vehicle (5). 20. Recording device according to one of the preceding claims, characterized in that two or more displacement tracks (7) are arranged on it at a distance from one another. 21. Recording device according to claim 20, characterized in that the mutual distance of the sliding tracks (7) from each other is adjustable. 22. Pick-up device according to one of claims 1 to 19, characterized in that it is coupled via a control to a second pick-up device (1) such that the feed movements of the carrying devices (2) and the retaining devices (9) coordinate both pick-up devices (1) expire. 3. Recording device according to one of the preceding claims, characterized in that a lifting device (16) is arranged at each end of the sliding track (7).