NL2013152B1 - Mobile lifting column with moving system, lifting system provided therewith, and method there for. - Google Patents
Mobile lifting column with moving system, lifting system provided therewith, and method there for. Download PDFInfo
- Publication number
- NL2013152B1 NL2013152B1 NL2013152A NL2013152A NL2013152B1 NL 2013152 B1 NL2013152 B1 NL 2013152B1 NL 2013152 A NL2013152 A NL 2013152A NL 2013152 A NL2013152 A NL 2013152A NL 2013152 B1 NL2013152 B1 NL 2013152B1
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- Netherlands
- Prior art keywords
- lifting column
- mobile lifting
- column
- drive
- mobile
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F5/00—Mobile jacks of the garage type mounted on wheels or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
Abstract
The present invention relates to a mobile lifting column, lifting system provided therewith and method there for. The mobile lifting column comprises: - a frame with a carrier configured for carrying the vehicle; - a carrier drive for driving the carrier in at least one of the ascent or descent of the carrier; - a moving system for changing the position of the mobile lifting column, comprising: -a number of front wheels; -a number of rear wheels; - a column drive configured for moving the mobile lifting column; and - a power system configured for providing power to at least the column drive.
Description
Mobile lifting column with moving system, lifting system provided therewith, and method there for
The invention relates to a mobile lifting column for lifting a load, such as a vehicle.
Lifting columns are known from practice and comprise a frame with a carrier that is connected to a drive for moving the carrier upwards and downwards. In the ascent mode, hydraulic oil is pumped to a cylinder for lifting the carrier. In the descent mode hydraulic oil returns to the reservoir. Such lifting column is disclosed in U.S. Patent Application Publication No. 2006/0182563, which is incorporated herein by reference.
Known mobile lifting columns have to be positioned before starting a lifting operation and are repositioned after a lifting operation. This requires the user to push or pull the mobile lifting columns to the desired position. This requires the user to exercise force to position the mobile lifting columns. In addition, the user intends to keep travelling distances to a minimum and to use the lifting columns in the neighborhood of the desired position for the next lifting operation. However, such lifting column may not necessarily be the most optimal choice for the next lifting operation, considering battery status, required maintenance etc. This may result in an ineffective use of the available lifting operations.
The present invention has for one of its objects to obviate or at least improve the above problems.
The present invention provides for this purpose a mobile lifting column for lifting a vehicle according to the invention, the mobile lifting column comprising: - a frame with a carrier configured for carrying the vehicle; - a carrier drive for driving the carrier in at least one of the ascent or descent of the carrier; - a moving system for changing the position of the mobile lifting column, comprising: - a number of front wheels; - a number of rear wheels; - a column drive configured for moving the mobile lifting column; and - a power system configured for providing power to at least the column drive.
Providing a carrier drive enables the lifting column to drive the carrier in at least one of the ascent or descent of the carrier. By providing the mobile lifting column with a moving system, the position of the mobile lifting column can be changed relatively easy without requiring a user to apply a significant force for this repositioning. This renders the mobile lifting column according to the present invention easy to use for its users. In addition, by providing a moving system capable of travelling the lifting column to another position, the total weight of the mobile lifting column according to the present invention becomes less relevant as the user does not have to provide the required force for repositioning the mobile lifting column. This adds additional flexibility to the use of the mobile lifting column. For example, this provides additional freedom for choosing the type of adapters, number of batteries etc.
The moving system according to the invention comprises a number of front wheels including an embodiment with two separate front wheels, a number of rear wheels including an embodiment with one single or double rear wheel, and a column drive configured for moving the lifting column. The front wheels and rear wheels of the lifting column may relate to conventional wheels of a mobile lifting column and/or custom-made wheels for the mobile lifting column according to the present invention. The column drive is configured for moving the lifting column to another position. When activated the column drive moves the column by driving one or more of the wheels of the column. Preferably the column drive acts on one or more of the regular wheels of the column. Alternatively, the column drive acts on an additional side wheel.
Furthermore, the mobile lifting column comprises a power system that is configured for providing power to at least the column drive. The use of power from this power system obviates the need for the user to apply significant force when repositioning the mobile lifting column. Such repositioning of mobile lifting columns is required in between different lifting operations on different vehicles, for example.
In a presently preferred embodiment the power system provides power to the column drive and to the carrier drive such that an efficient use of components of the mobile lifting column is achieved.
Providing the column drive with the power system provides a non-human powered moving system for changing the position of the mobile lifting column in a workshop for example. This renders the mobile lifting column easy to use. Furthermore, this renders it less cumbersome for the user to park unneeded mobile lifting columns at a prescribed location. Furthermore, it assures that the user selects the most optimal mobile lifting column for the next lifting operation without restricting himself to the lifting columns that are most near. This improves the overall flexibility of the mobile lifting column according to the present invention and improves the overall efficiency of lifting operations.
In a preferred embodiment according to the present invention the column drive comprises a front wheel transmission configured for driving a number of front wheels.
By providing a front wheel transmission the mobile lifting column has a front wheel drive that is capable of steering the mobile lifting column to the desired position. Preferably, the number of front wheels is at least two. In mobile lifting columns the foot of the lifting column often comprises a fork-shaped frame with two legs. Each leg is provided with at least one front wheel to improve the steering possibilities for the mobile lifting column according to the present invention. Furthermore, the front wheel transmission preferably provides separate sub-transmissions for these individual front wheels. Providing separate sub-transmissions for the individual front wheels enables the user to steer the mobile lifting column to the desired position including riding the mobile lifting column along a curved path through the workplace. Such curved path can be achieved by applying different speeds to the different front wheels. This improves the flexibility of use for the mobile lifting column.
In a preferred embodiment according to the present invention the column drive comprises a rear wheel transmission that is configured for driving the number of rear wheels.
By providing a rear wheel transmission, the rear wheel of the lifting column can be driven. As this rear wheel of the mobile lifting column is often positioned directly under or close to the mast of the mobile lifting column, the transmission is rather directly coupled to other parts of the lifting column. This reduces complexity of the mobile lifting column according to the present invention.
In most conventional mobile lifting columns there is one rear wheel that can be rotated with a handle relative to the frame of the lifting column to enable steering the mobile lifting column. In case of a rear wheel drive, this steering possibility can be maintained thereby reducing the complexity of the moving system according to the present invention.
In one embodiment according to the present invention the mobile lifting column comprises both a front wheel transmission and a rear wheel transmission. This provides optimal flexibility for positioning the mobile lifting column according to the present invention. In addition, this provides a fail-safe mobile lifting column as two separate drive possibilities are provided .
Alternative to a transmission acting on one or more of the regular wheels of the column, or in addition therewith, the moving system may comprise one or more additional wheels that are connected to the column drive to enable repositioning the mobile lifting column. This can be advantageously applied to conventional mobile lifting columns as a conversion kit or conversion set to provide the additional functionality of the mobile lifting column according to the present invention and also to conventional mobile lifting columns.
In a preferred embodiment according to the present invention the column drive comprises an electric drive.
By providing an electric drive the power system may provide power from the batteries that are already available in most mobile lifting columns. This prevents increasing the complexity of the mobile lifting column. For example, the motor (drive) can be connected to an electric controller that is supplied with power from the 24 V batteries of the mobile lifting column.
In a preferred embodiment according to the present invention the column drive comprises a hydraulic drive.
The hydraulic drive for the column drive is preferably combined with the hydraulic unit that is often already available in the mobile lifting column for moving the carrier. The use of a hydraulic drive has as a further advantage that it has no risk of producing sparks when in use. This reduces the risk of an explosion in workshops. This is especially relevant considering the fact that the drive of the moving system is close to the ground.
In a further preferred embodiment according to the present invention the mobile lifting column further comprises an actuator element configured for activating the column drive.
By providing an actuator element that is configured for activating the column drive the user can control and/or steer the column drive easily. This actuator element may relate to a handle, joystick, button, etc. This actuator element may even comprise a voice control system and/or remote control. The size of such specific elements increase the flexibility to adapt the mobile lifting column according to the present invention to the needs of the user.
In a presently preferred embodiment the actuator element comprises a four-directions actuator. Such four-directions actuator may relate to a joystick of joystick-like component. Such component is advantageously applied in the electric front wheel drive embodiment. This actuator enables not only backward and forward movement, it also enables left and right movements.
In a further preferred embodiment the actuator element comprises a speed control. By providing a speed control the flexibility of the mobile lifting column according to the present invention is further increased. For example, it enables high speed movement of the lifting column over large distances and enables low speed maneuvering when the mobile lifting column is close to its desired position. The speed control can be implemented by coupling the speed control to the resistance of a resistance element of the actuator element, for example the joystick or handle. This resistance element can be directly linked to the electric drive and/or to the hydraulic drive by manipulating the throttle of the hydraulic unit, for example.
In a further preferred embodiment according to the present invention, the actuator element comprises a remote control.
By providing a remote control the user can remotely position the mobile lifting column according to the present invention. This prevents the user having to walk around the workshop to position the required lifting columns for the next lifting operation, for example. This reduces the amount of movements a user is required to make through the workshop with the risk of hindering other lifting operations.
In one embodiment the remote control relates to autonomously moving lifting columns that determine the optimal path to the next desired position. This further increases the safety of working with the mobile lifting column according to the present invention. This is especially relevant in case of a workshop having a relatively huge number of mobile lifting columns that cooperate in varying sets for different lifting operations.
In a further preferred embodiment according to the present invention, the mobile lifting column further comprises an autonomous position controller.
Providing a autonomous position controller enables the lifting columns to position theirselves individually and/or as a group without requiring operators to walk around the workshop, for example. This improves the efficiency when operating lifting columns. The position controller may directly control the drive of a column when this column requires repositioning. This repositioning may involve parking the column at a parking position. It may also involve positioning a lifting column relative to a vehicle wheel in preparation for a new lifting operation. The controller may act on an individual lifting column and/or on a group or set of columns. The controller may involve means to determine the position of the lifting column, including position-determination as described in WO 2009/099322 and included by reference herein, camera or camera system, and/or other means. In one embodiment according to the invention the autonomous position control involves a moving system enabling self steering and/or self seeking functionality of a lifting column or a set of lifting columns, for example to engage a vehicle wheel. Optionally, the carrier of the lifting column adapts itself to the wheel diameter. This automates preparation for a new lifting operation.
In a further preferred embodiment according to the present invention one or more of the wheels of the mobile lifting column comprise a wheel motor.
By providing a wheel motor, also referred to as an in-wheel motor, a compact design is achieved for a mobile lifting column according to the present invention. This can also be beneficial when converting a conventional mobile lifting column to the mobile lifting column with moving system according to the present invention.
The invention further relates to a lifting system comprising a number of mobile lifting columns as described earlier.
Such lifting system provides the same effects and advantages as those described for the mobile lifting column. The mobile lifting columns according to the present invention can move independently. In one embodiment it is also possible to move the mobile lifting columns of one lifting system together as a group, for example when repositioning for a new lifting operation for similar vehicles. This also enables driving a vehicle to be lifted between a number of lifting columns that in a next step autonomously position themselves relative to the vehicle wheel, optionally adapt the carrier to the wheel diameter, and optionally start lifting the vehicle.
The invention further also relates to a method for changing the position of a mobile lifting column, comprising the steps of providing a mobile lifting column and/or lifting system as described earlier, and activating the column drive for moving the mobile lifting column.
Such method provides the same effects and advantages as those described for the lifting column and lifting system. In addition, moving the mobile lifting column may comprise autonomously driving the mobile lifting column based on a desired position of the mobile lifting column, including positioning a lifting column relative to a vehicle wheel in preparation for a lifting operation. Such desired position can be determined by the next lifting operation that is required to be performed and/or by a parking position when the lifting column is not required for the next lifting operation. The autonomous driving of the lifting columns significantly reduces the movements that are required in a workshop. This provides additional safety to working in such workshop.
The further advantages, features and details of the invention are elucidated on the basis of preferred embodiments thereof, wherein reference is made to the accompanying drawings, in which: - Figure 1 shows a schematic overview of a vehicle lifted by lifting columns according to the invention; - Figure 2A-C show an embodiment of the lifting column of figure 1; and - Figure 3A-B show an alternative embodiment of the lifting column of figure 2.
The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. While the disclosure is described as having exemplary attributes and applications, the present disclosure can be further modified. This application is therefore intended to cover any variations, uses, or adaptations of the disclosure using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice of those skilled in the art to which this disclosure pertains and which fall within the limits of the appended clauses. Accordingly, the following description of certain embodiments and examples should be considered merely exemplary and not in any way limiting.
The system of the present invention is suitable for use with lifting systems comprising any number of lifting columns, including systems having one, two, four or another number of columns. The columns may achieve lifting and lowering capability by any means known to those of skill in the art, including hydraulically, electrically, mechanically, and electromechanically. With reference to the figures, like element numbers refer to the same element between drawings.
System 2 for efficient lifting and lowering a load (fig. 1) comprises four mobile lifting columns 4 in the illustrated embodiment. Lifting columns 4 lift a passenger car 6 from the ground 8. Lifting columns 4 are connected to each other and/or a control system by wireless communication means or alternatively by cables. Lifting columns 4 comprise a fork-shaped foot 10 which can travel on running wheels 12 over ground surface 8 of for instance a floor of a garage or workshop. In the forks of foot 10 there is provided an additional running wheel (not shown).
Lifting column 4 furthermore comprises a mast 14. A carrier 16 is moveable upward and downward along mast 14. Carrier 16 is driven by a motor 18 that is provided in a housing of lifting column 4. Motor 18 is supplied with power from an energy storage system, more specific a battery, that is provided on lifting column 4 in the same housing as motor 18, or alternatively on foot 10 (not shown). Lift control with control panel 20 is provided to allow the user of system 2 to control the system, for example by enabling user input through panel 20, such as setting the speed for the carrier 16. Lifting system 2 includes at least two lifting columns 4. Each of the lifting columns has at least one ascent mode and one descent mode, and is under the influence of a control 20. Control 20 can be designed for each lifting column 4 individually, or for the lifting columns 4 together.
Optionally, remote control 22 provides steering signals 24 to lifting columns 4 as a group and/or individually. Also optionally, a central controller 26 is provided that transmits and/or receives steering and/or control signals 28 to lifting system 2 and/or individual lifting columns 4. Central controller 26 and remote control 22 can also be integrated in a single device.
Lifting column 30 (figures 2A-2C) comprises two front wheels 32 and a rear wheel 34. In the illustrated hydraulic column drive embodiment lifting column 30 has a rear wheel drive with in-wheel motor 36. Battery 38 is included in lifting column 30. Hydraulic column drive 40 comprises in-wheel motor 36. In this illustrated embodiment carrier 16 is moveable with carrier drive 42 using hydraulic unit 44. Handle 46 enables steering lifting column 30. It also activates pallet jack mechanism 48. Optionally, separate column drive controller 50 is provided to control the moving system of mobile lifting column 30.
Handle 46 enables movement in a forward direction A (figure 2B) and in a reverse direction B. In case of the illustrated rear wheel drive of lifting column 30 handle 46 is used for manual steering in a direction C and/or D to enable lifting column 30 to displace over a curved trajectory or path.
In the illustrated embodiment hydraulic column drive 40 can be implemented with hydraulic scheme 52 (figure 2C). Scheme 52 comprises hydraulic unit 44 that is provided with a variable speed motor 54 capable of providing hydraulic fluid from reservoir 56 to drive select valve 58 and further to forward reverse valve 60. This enables choosing the rotational direction of motor 36 in rear wheel 34. Additional valves 62, 64 are provided for further hydraulic functioning of scheme 52.
In another electric drive embodiment of lifting column 66 (figures 3A-B) an electric front wheel drive is provided with in-wheel motors 68 for individual front wheels 32. Handle 70 is in the illustrated embodiment used to enable forward movement in direction A, reverse movement in direction B, left movement in direction C and right movement in direction D. Power is supplied from one or more batteries 38 of mobile lifting column 66 as power system providing power to the column drive 72 comprising in-line motors 68. Separate moving system controller 74 can be provided and/or be integrated in control panel 20 of mobile lifting column 66.
When repositioning a mobile lifting column 4, 30, 66 a desired position is chosen or defined. The user brings mobile lifting column 4, 30, 66 to the desired location by steering with handle 46, 70 or remote control 22, or alternatively with a central controller 26 optionally comprising an autonomously moving system. This enables the user to position mobile lifting column 4, 30, 66 accurately and easily. Centrally positioned camera 76 monitors positions of individual lifting columns 4, 30, 66 and/or lifting system 2. Alternatively, or in addition therewith, individual lifting columns can be provided with individual camera 78. One of the controllers 20, 22, 26, 74 and/or a separate central or individual position controller 80 controls movement of the lifting column(s) towards the desired location including positioning the lifting column relative to a vehicle wheel in preparation of a lifting operation. Although camera 76, 78 and controller 80 is only illustrated in the embodiment shown in figure 1 it will be understood that such autonomous moving system can also be applied to the other embodiments in accordance with the invention.
The present invention is by no means limited to the earlier described preferred embodiments thereof. The rights sought are defined by the following claims within the scope of which many modification can be envisaged.
Clauses 1. Mobile lifting column for lifting a vehicle, comprising: - a frame with a carrier configured for carrying the vehicle; - a carrier drive for driving the carrier in at least one of the ascent or descent of the carrier; - a moving system for changing the position of the mobile lifting column, comprising: - a number of front wheels; - a number of rear wheels; - a column drive configured for moving the mobile lifting column; and - a power system configured for providing power to at least the column drive. 2. Mobile lifting column according to clause 1, wherein the column drive comprises a front wheel transmission configured for driving the number of front wheels. 3. Mobile lifting column according to clause 2, wherein the number of front wheels is at least two, and wherein the front wheel transmission provides separate sub-transmissions for individual front wheels. 4. Mobile lifting column according to clause 1, 2, or 3, wherein the column drive comprises a rear wheel transmission configured for driving the number of rear wheels. 5. Mobile lifting column according to one or more of the foregoing clauses, wherein the column drive comprises an electric drive. 6. Mobile lifting column according to one or more of the foregoing clauses, wherein the column drive comprises a hydraulic drive. 7. Mobile lifting column according to one or more of the foregoing clauses, further comprising an actuator element configured for activating the column drive. 8. Mobile lifting column according to clause 7, wherein the actuator element comprises a four-directions actuator. 9. Mobile lifting column according to clause 7 or 8, wherein the actuator element comprises a speed control. 10. Mobile lifting column according to clauses 7, 8 or 9, wherein the actuator element comprises a remote control. 11. Mobile lifting column according to one or more of the foregoing clauses, further comprising an autonomous position controller. 12. Mobile lifting column according to one or more of the foregoing clauses, wherein one or more of the wheels comprise a wheel motor. 13. Lifting system comprising a number of mobile lifting columns in accordance with one or more of the foregoing clauses. 14. Method for changing the position of a mobile lifting column, comprising the steps of providing a mobile lifting column and/or lifting system according to one or more of the foregoing clauses, and activating the column drive for moving the mobile lifting column. 15. Method according to clause 14, wherein moving the mobile lifting column comprises autonomously driving the mobile lifting column based on a desired position of the mobile lifting column.
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2013152A NL2013152B1 (en) | 2014-07-09 | 2014-07-09 | Mobile lifting column with moving system, lifting system provided therewith, and method there for. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2013152A NL2013152B1 (en) | 2014-07-09 | 2014-07-09 | Mobile lifting column with moving system, lifting system provided therewith, and method there for. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2013152B1 true NL2013152B1 (en) | 2016-09-13 |
Family
ID=51398820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2013152A NL2013152B1 (en) | 2014-07-09 | 2014-07-09 | Mobile lifting column with moving system, lifting system provided therewith, and method there for. |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL2013152B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020009571A1 (en) | 2018-07-03 | 2020-01-09 | Stertil B.V. | Mobile lifting column, lifting system comprising one or more of such lifting columns, and method for lifting a vehicle |
| US11008203B2 (en) | 2013-03-14 | 2021-05-18 | Vehicle Service Group, Llc | Automatic adapter spotting for automotive lift |
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| EP0327724A1 (en) * | 1988-02-06 | 1989-08-16 | Dambach - Industrieanlagen GmbH | Shelf-loading device and high rise shelf installation therefor |
| EP0341579A2 (en) * | 1988-05-13 | 1989-11-15 | Hydro-Gerätebau GmbH & Co. KG Hebezeuge | Jack, especially a three-legged jack for aircraft |
| US20060182563A1 (en) * | 2004-12-23 | 2006-08-17 | De Jong Jurjen J | Lifting system |
| WO2009099322A1 (en) * | 2008-02-05 | 2009-08-13 | Stertil B.V. | System with position-determination for lifting columns, and method therefor |
| CN102285458A (en) * | 2011-08-28 | 2011-12-21 | 成都飞机工业（集团）有限责任公司 | General transport vehicle for multi-model parts |
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2014
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| EP0327724A1 (en) * | 1988-02-06 | 1989-08-16 | Dambach - Industrieanlagen GmbH | Shelf-loading device and high rise shelf installation therefor |
| EP0341579A2 (en) * | 1988-05-13 | 1989-11-15 | Hydro-Gerätebau GmbH & Co. KG Hebezeuge | Jack, especially a three-legged jack for aircraft |
| US20060182563A1 (en) * | 2004-12-23 | 2006-08-17 | De Jong Jurjen J | Lifting system |
| WO2009099322A1 (en) * | 2008-02-05 | 2009-08-13 | Stertil B.V. | System with position-determination for lifting columns, and method therefor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11008203B2 (en) | 2013-03-14 | 2021-05-18 | Vehicle Service Group, Llc | Automatic adapter spotting for automotive lift |
| US11104561B2 (en) | 2013-03-14 | 2021-08-31 | Vehicle Service Group, Llc | Automatic adapter spotting for automotive lift |
| WO2020009571A1 (en) | 2018-07-03 | 2020-01-09 | Stertil B.V. | Mobile lifting column, lifting system comprising one or more of such lifting columns, and method for lifting a vehicle |
| USD874081S1 (en) | 2018-07-03 | 2020-01-28 | Stertil B.V. | Lifting device for vehicle |
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