EP2419362A1

EP2419362A1 - Vehicle lifting platform for lifting loads, in particular vehicles

Info

Publication number: EP2419362A1
Application number: EP10718470A
Authority: EP
Inventors: Gerhard Finkbeiner; Josef Femböck
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-17
Filing date: 2010-04-19
Publication date: 2012-02-22
Anticipated expiration: 2030-04-19
Also published as: US9193572B2; WO2010118893A1; DE202009005661U1; US20120037864A1; EP2419362B1

Abstract

The invention relates to a vehicle lifting platform for lifting vehicles, in particular motor vehicles or similar, comprising load receiving means (17), a drive device (15) which raises and lowers the load receiving means (17) and which can be controlled by a drive control (25), also comprising an energy accumulator (29) which supplies energy to the drive control (25) and to the drive device (15). A rapid replacement device (28) is provided on the vehicle lift platform (11) enabling the energy accumulator or energy accumulators (29) to be arranged in an exchangeable manner.

Description

Vehicle lift for lifting loads, in particular vehicles

The invention relates to a vehicle lift for lifting vehicles, in particular of motor vehicles or the like, which comprise a lifting column with a guided by the lifting column carrier, on which a load-receiving means is provided.

DE 603 13 633 T2 discloses such a vehicle lift for vehicles, which is also referred to as a single-pillar vehicle lift or wheel gripper. This vehicle lift comprises a lifting column with a guided by the lifting column carrier. On the support a load-receiving means is provided, for example, to engage under a wheel of a vehicle. This vehicle lift comprises a drive control, which drives a drive device and moves the carrier up and down relative to the lifting column. To power the drive control and the drive unit is provided that a battery is provided on a lifting column supporting the base frame. These are lead-acid batteries, which are also used in motor vehicles. Such batteries are provided firmly to the stage. An additional battery connected to the mains will charge the battery. During the period of charging the battery, a location-independent use of the vehicle lift is not given. If a charging process takes place during use, lying on the working floor cables that are connected to the battery hinder the rest of the workflow.

The invention is therefore an object of the invention to provide a stage, which is location-independent in operation and allows a dige operational readiness, the wireless arrangement of

Vehicle lift is maintained to a power grid.

This object is achieved by the features of claim 1. Further advantageous embodiments and further developments are specified in the further claims.

The inventive arrangement of a quick-change device for receiving and replacing the energy storage or allows a simple and quick replacement of the energy storage is possible after the decrease of the state of charge of the energy storage below a predetermined charge level and a fully charged energy storage for operating the vehicle lift is available.

By this quick-change device for quick replacement of the energy storage is further made possible that a readiness to operate is also given when a power failure is given over a longer period of time or is provided only at certain operating times working power. In addition, this arrangement allows emergency lowering, even if no power Supply is available via a power grid. In addition, this arrangement has the advantage that the operation is independent of an existing supply network voltage. For example, a charging station can be adapted to the feed data of the local supply network in order to charge the energy store or stores, wherein the individual vehicle lifts and their drive controls can be configured uniformly.

According to a preferred embodiment of the invention, the vehicle lift is designed as a so-called single-column lift, which has a lifting column and guided by the lifting column carrier, on which a load-receiving means is provided. By the drive means, the carrier is provided movable up and down relative to the lifting column. It can be provided according to a first embodiment, that the carrier is guided within the lifting column. According to a further embodiment, the carrier may surround the lifting column. Both on the lifting column, on the carrier or the load receiving means, the quick-change device may be provided for receiving the energy storage or the. If this lifting column is mobile and includes a chassis or a mobile base frame, the quick-change device can also be provided on this base frame. If this single-column lift is designed instead of a carrier by means of a lifting carriage, which is moved up and down, for example, by a drive spindle, the quick-change device may alternatively be provided on this lifting carriage. Another alternative embodiment of the vehicle lift is the use as an axle jack, which is movable within a rail lift or along a working pit. Such axle jacks preferably have a movable carriage. For example, axle jack in the form of a Hubstempels, such as. Hydraulic cylinders, or be provided in the form of other different vehicle lifts on the movable carriage. Preferably, the quick-change device for receiving the or the energy storage is arranged on the movable carriage or the base frame of the car. According to a preferred embodiment of the invention, it is provided that a wireless drive control is provided for the vehicle lift. As a result, each Fahrzeughebebühπe can be used regardless of location. A connection of a cable for drive control and / or power supply is not required. Thus, for example, several Fahrzeughebebhnen be provided separately to each other, for example, a vehicle and at the same time allow the vehicle to be picked up. In the wireless drive control of the individual vehicle lifts, for example, a Bluetooth technology, GPS technology or other wireless technologies is used.

A preferred embodiment of the vehicle lift provides that the quick-change device has at least one receiving frame, in which the energy store or stores are at least partially form-fitting can be arranged. Through this mounting frame an exact positioning of the energy storage is made possible to the contact terminals, so that a secure contact is given.

Furthermore, it is preferably provided that the receiving frame of the quick-change device is designed as a plug-in base. Thus, can be done by a simple placement and removal movement of the energy storage fast replacement of the energy storage. This allows easy and safe handling.

Furthermore, it is preferably provided that the quick-change device has a locking element, by which the one or more energy storage are secured secured to the receiving frame. Such a locking element is preferably designed such that it is automatically transferred after insertion of the energy storage in the receiving frame in a locking position. As a result, a one-hand operation for attaching the energy storage can be made possible. At the same time handling is simplified.

Furthermore, it is preferably provided that electrical contacts, in particular spring-loaded contact pins are provided as a connection in the receiving frame of Schneilwechseleinrichtung. This can cheres concern the contact pins or contact elements of the energy storage to be provided on the contacts of the receiving frame. Alternatively, it is also possible that such contact pins are provided on the energy storage devices, which engage preferably spring-loaded contact elements of the quick-change device.

The quick-change device for receiving the energy storage or is preferably provided above a drive control of the vehicle lift, which in turn is located directly above an electric motor or directly to the electric motor of the drive device on the lifting column or the carrier of the vehicle lift. This makes it possible that short current paths are given. Not only does this save on expensive power cables, but it also reduces losses due to the short connection cables.

A preferred embodiment of the vehicle lift provides that a übereiπaπderliegende arrangement of the individual components is provided for moving up and down of the carrier to the lifting column. For example, an electric motor is provided above a drive device consisting of a hydraulic unit and an overlying hydraulic control. Above this, the electric drive control is arranged. Above the electric drive control, the quick-change device for receiving the energy storage or is arranged. This structure and arrangement allows in particular a compact arrangement with short drive paths, so that, for example, high switching currents of the electric motor and the drive control can be kept very short.

A further preferred embodiment of the invention provides that high-capacity batteries, in particular lithium-ion batteries, are provided as the energy store. These can be designed as so-called removable storage batteries. Due to the simple and quick change possibility of such energy storage, an operating time of, for example, only 10 or 12 cycles can be sufficient, in comparison to lead accumulators according to the prior art, which usually allow about 20 cycles.

A further preferred embodiment of the vehicle lift provides that a plug connection for a charging or power supply cable is provided on the drive control and the drive control preferably comprises a charging circuit for monitoring the state of charge of the energy store. This allows, for example, the energy storage or exchange energy storage in a charging station and at the same time or the arranged in the lifting column energy storage can be loaded, especially if this vehicle lift is not in use.

According to a further preferred embodiment of the invention, the energy storage comprises an energy storage control, which is provided on or in a housing receiving the energy storage and detects the state of charge of the energy storage. Through this integration, the Eigenintelligenz the energy storage and energy management can be improved. This controller preferably comprises a microcontroller which monitors the state of charge of the energy store. Preferably, the corresponding charge characteristic is stored in the microcontroller for the respective accumulator used, so that for the charge and discharge of the respective accumulator allows improved utilization and can be controlled via this energy storage control. At the same time thereby the residual charge of the energy storage can be determined safely to prevent premature failure or shutdown of the vehicle lift and timely signal the replacement of the energy storage due to a fault or low residual charge. For this purpose, an optical, acoustic or tactile display can preferably be provided, which at least signals that an exchange of the energy storage is required due to a low residual charge. By such an energy storage control, the current intensity and the duration of the current in the charging and discharging direction can be detected simultaneously during the activation of the vehicle lift. As a result, it is possible to deduce the state of charge of the energy store via the current capacity. According to a further preferred embodiment of the invention, the energy store comprises a charging circuit, which is provided in a housing receiving the energy storage. Thus, the energy storage can be loaded both on the lifting column as well as directly to a separate power supply connection point without an extra charging station is required. The charging circuit can be designed for use for different supply voltages or frequencies of the supply networks and transform therefrom the DC power required for the drive control of the vehicle lift.

Furthermore, the energy store preferably has at least one data interface, in particular a wireless data interface, which communicates with the drive control. Thus, an immediate transfer of the data between the drive control and the microcontroller of the energy storage can take place. Alternatively, a wired transmission of the data may be provided, wherein preferably in the energy storage housing receiving a plug contact is mounted, which engages a complementary plug contact of the quick-change device.

A further preferred embodiment of the invention provides that the quick-change device, in particular the receiving space of the quick-change device, is attached to a printed circuit board having printed conductors, which lead to the drive control and / or the electric motor of the drive device or the hydraulic control. Such printed circuit boards have the advantage that traditional wiring by means of individual cables can be dispensed with. Rather, a printed or etched board is provided, which comprises the corresponding conductor tracks to connect the individual components together. As a result, the assembly is considerably simplified. At the same time, a modular design can be considerably improved, since defined connection contacts or contact elements for the components to be connected are provided along the printed circuit board. The energy is then transmitted through this PCB instead of via connecting cable. A modified embodiment of this circuit board can be provided so that when attaching the circuit board to the Lifting column, the lifting column itself is designed as a ladder, as is known for example in the body of automobiles.

A further preferred embodiment of the printed circuit board provides current sensors on this printed circuit board, by means of which the state of charge of the respective energy store can be detected. In this case, the differential voltage between the input voltage of the conductor track on the energy store and the output voltage on the drive controller is preferably detected. Due to the known resistance over the thickness and length of the conductor, the current of the energy storage can be determined and thus the state of charge can be detected. Furthermore, instead of integrating the charging circuit on the energy store, the printed circuit board may also preferably comprise a charging circuit, so that charging of the respective energy store via the charging circuit of the printed circuit board can be carried out via a connection contact on the printed circuit board.

A further preferred embodiment of the vehicle lift provides that the energy store has a quick-change device in the form of a connection plug which can be plugged together with a complementary plug of the drive control and / or the drive device. This arrangement also allows a quick change takes place. For example, a vehicle lift can be completely equipped with the components and provided and only on site by the mating of the two connector elements of the quick-change device, the drive control and / or the drive means are powered by the battery voltage. In this case, the attachable to the energy storage plug can have two terminal poles for plus and minus, which can be attached in a simple manner to the poles of the energy storage or detachable thereto.

The invention and further advantageous embodiments and developments thereof are described in more detail below with reference to the examples shown in the drawings and explained. The features to be taken from the description and the drawings can individually applied by itself or in any combination in accordance with the invention. Show it:

FIG. 1 shows a schematic side view of a vehicle lift according to the invention,

Figure 2 is a perspective view of an alternative

Embodiment of the vehicle lift according to FIG. 1,

Figures 3a and b are perspective views of a quick-change device with an energy storage and

Figure 4 is a schematic view of an alternative

Embodiment of a vehicle lift according to FIG. 1.

1 shows a schematic side view of a vehicle lift 11 according to the invention is shown, which is suitable for mobile use, for example. Such vehicle lifts 11 are also referred to as single-column vehicle lifts. The vehicle lift 11 has a base device 12, which according to the embodiment preferably comprises a chassis or steering gear. Alternatively, the base means 12 may be formed as a support plate or mounting plate to which the vehicle lift 11 is attached to the floor of a workshop or a mobile or a stationary work space.

At the base device 12, a lifting column 14 is provided. On the lifting column 14, a drive unit 15 is fixed, which moves a carrier 16 relative to the lifting column 14 and down. On the carrier 16, a load-receiving means 17 is provided, which engages under a load to be lifted. Preferably, the load-receiving element 17 is designed as a wheel gripping element in a single column lift. Other applications are also possible. The drive device 15 comprises a hydraulic unit 21, which drives a working cylinder, which is preferably arranged within the carrier 16. Alternatively, the drive device 15 may also be designed as an electrical or mechanical control, so that, for example, a spindle drive or the like can be controlled. For controlling the hydraulic unit 21, a hydraulic control 23 is provided, which in turn is controlled by a drive control 25. This drive control 25 regulates the entire operation of the vehicle lift 11.

Between the drive control 25 and the hydraulic control 23, an electric motor 26 is provided, which in turn drives the hydraulic unit 21. Above the drive control 25, a quick-change device 28 is provided, which receives one or more energy storage 29 replaceable for powering the vehicle lift 11.

By way of further wiring, for example, further sensors 30 are provided either for detecting an upper stroke end position and / or for unlocking a fall arrester.

The above-described arrangement and the construction of the superimposed components has the advantage that a compact arrangement and short connection cables are provided in order to control the individual components starting from the drive control 25. It is preferably provided that the individual connection cables are formed with plug-in connections, so that a simple modular design is given.

These vehicle lifts 11 are used for lifting motor vehicles, commercial vehicles, special vehicles, rail vehicles or the like.

FIG. 2 shows an alternative embodiment of the vehicle lift 11 to FIG. In this embodiment, it is provided that the quick-change device 28 for receiving the or the energy Giespeicher 29 is provided between the electric motor 26 and the drive control 25. The quick-change device 28 is attached to a circuit board 49, which in turn is mounted on the lifting column 14. Incidentally, the analogous statements apply to FIG. 1.

FIGS. 3 a and 3 b show a perspective front and rear view of the quick-change device 28 with an energy store 29 to be attached thereto. This quick-change device 28 comprises a receiving frame 33, which is designed according to the embodiment as a plug-in base. On the receiving frame 33, a nose or projection 34 is provided, which corresponds to a complementary recess 35 on the energy storage 29. This ensures that the energy store 29 can be inserted into the receiving frame 33 only in a defined plug-in position and that an electrical contact is made between the energy store 29 and the quick-change device 28. Spring-loaded contact pins 38 are preferably arranged on the energy store 29 as electrical contacts which, in the locked state of the energy store 29, act on the change-over device 28 on the contact elements 37 in the receiving frame 33. The quick-change device 28 is connected via the contact elements 37 and by the supply lines shown for example in Figure 1 with the control electronics of the drive control 25. For easy changing of the energy storage 29, a locking element 41 or a snap or latching hook is provided. By simply plugging the energy storage device 29 on the quick-change device 28 is a contacting and preferably an independent locking of the locking element 41 to the energy storage 29. By raising or pressing the locking element 41 unlocking and removal of the energy storage 29 is made possible so that this in one separate charging station can be recharged.

The charging station can receive one or more energy stores 29 and is provided separately from the vehicle lifts 11. This makes it possible that during operation of the vehicle lifts 11 separate from these charging the energy storage device 29 is possible. Thus, there are sufficient alternating energy storage available, so that when a required exchange is always an energy storage 29 ready.

The quick-change device 28 may also be provided for receiving a plurality of juxtaposed or stacked energy stores 29, wherein preferably for each energy storage 29, a separate locking is provided. Alternatively, a locking frame may be provided, which fixes a plurality of energy storage 29 simultaneously to the receiving frame 33.

The energy store 29 is designed as a high-performance accumulator, in particular as a lithium-ion battery. Other high capacity accumulators may also be provided.

In Figure 4, an alternative embodiment of a vehicle lift 11 is shown in perspective as a so-called pit lift. Such r ^ _. , i i i. c _: - - .. c n ~ ι ι ~. ~ -> _ "" "" ", j" "* -" "r * .-,. «^ ^. ^., - «- ^. 11 / i Λ

Ol u uci H ICUiCi u π ii αaaci i cn i α ui tj α i icui u ι oι uι ιuycji.cι ι -rr to form a movable carriage 45. About the rollers 43, the vehicle lift 11 along the pit can be moved, which is extends between the right and left pair of rollers 43 in width. On the base frame 44 lifting cylinder 47 are provided as axle jack or other lifting devices. For example, these lifting cylinders 47 are adjustable in width to the male load and along the base frame 44 according to the illustrated double arrow movable. These lifting cylinders 47 are preferably designed as hydraulic cylinders and have load-receiving means 17 at the upper end. For driving the pit lift, the analogous components as those of the vehicle lift 11 according to FIGS. 1 and 2 are provided. Thus, the drive device 15 comprises a hydraulic unit 21 with a hydraulic control 22 and a drive control 25, which is directly connected to an electric motor 26. The quick-change device 28 is preferably arranged on the Gruπdgestell 44 and takes, for example, an energy storage 29. An analogous structure can be provided for the axle free lift, which can be moved within a travel lift. Otherwise, the alternative tive embodiments and advantages of the aforementioned embodiments.

Claims

claims

1. vehicle lift for lifting vehicles, in particular motor vehicles or the like, with a load receiving means (17), with one of a drive control (25) controllable drive means (15) which moves the load receiving means (17) up and down, and with an energy storage ( 29), which supplies the drive control (25) and the drive device (15) with energy, characterized in that for the interchangeable arrangement of the energy store (29) a quick-change device (28) on the vehicle lift (11) is provided.

2. Vehicle lift according to claim 1, characterized in that it comprises a lifting column (14) and a through the lifting column (14) guided carrier (16) or lifting carriage, on which the load receptacle (17) can be arranged, wherein the quick-change device (28) on the lifting column (14), the carrier (16), the load bearing (17) or Rlem lifting is arranged or that it is designed as an axle jack, which has a base frame (44), preferably at one along a working pit or within a moving platform lift movable carriage (45) is provided and preferably arranged thereon rollers (43), and that on the base frame (44), the quick-change device (28) is provided.

3. Vehicle lift according to claim 1, characterized in that a wireless drive control (25) is provided.

4. Vehicle lift according to claim 1, characterized in that the quick-change device (28) has at least one receiving frame (33), in which the energy store (29) is at least partially form-fitting can be arranged.

5. vehicle lift according to claim 4, characterized in that the receiving frame (33) of the quick-change device (28) is provided as a plug-in base for receiving the or the energy storage device (29).

6. Vehicle lift according to claim 4 or 5, characterized in that the quick-change device (28) has a locking element (41), by which the energy store or stores (29) to the receiving frame (33) are secured secured.

7. Vehicle lift according to one of the preceding claims, characterized in that the quick-change device (28) or the energy store (29) contacts, in particular resilient contact pins (38).

8. Vehicle lift according to claim 1, characterized in that the one or more energy stores (29) are arranged above a drive control (25) on the lifting column (14) or on the carrier (16) and immediately below the drive control

is hen or that the drive control (25) above the energy storage device (29) is arranged.

9. Vehicle lift according to claim 1, characterized in that a superimposed arrangement of the components for moving up and down of the carrier (16) relative to the lifting column (14) on the lifting column (14) or on the support (16) is provided, at the bottom the drive device (16), consisting of hydraulic unit (21) and a hydraulic control (23) arranged above it, an overlying electric motor (26) and above which in turn a drive control (25) is arranged and in turn above the drive control (25) a quick-change device (28) is provided for receiving the energy storage device (29).

10. Vehicle lift according to claim 1, characterized in that as energy storage (29) high-performance accumulators, in particular lithium-ion batteries, are provided.

11. Vehicle lift according to claim 1, characterized in that on the drive control (25) at least one plug connection for a charging or power supply cable is provided and the drive control (25) preferably comprises a charging circuit for monitoring the state of charge of the energy storage device (29).

12. Vehicle lift according to claim 1, characterized in that the energy store (29) comprises an energy storage control, which is provided on or in the energy storage device (29) receiving housing, and which preferably monitors the state of charge of the energy store (29).

13. Vehicle lift according to claim 1, characterized in that the energy store (29) comprises a charging circuit which is provided on or in a the energy storage device (29) receiving the housing.

14. Vehicle lift according to claim 1, characterized in that the energy store (29) has at least one data interface, in particular a wireless data interface, which communicates with the drive control (25).

15. A vehicle lift according to claim 1, characterized in that the quick-change device (28), in particular the receiving frame (33) of the quick-change device (28), on a circuit board (49) is fixed, which has conductor tracks of contact elements (37) of the quick-change device (28) for drive control (25) and / or to the electric motor (29) of the drive device (15) and / or to the hydraulic control (23) lead.

16. Vehicle lift according to claim 14, characterized in that the printed circuit board (49) has current sensors, by which preferably the state of charge of the energy store (29) can be detected.

17. Vehicle lift according to claim 1, characterized in that the energy store (29) comprises a quick-change device (28) in the form of a connector plug which can be plugged together with a complementary plug of the drive control (25) and / or drive means (15).