Wheel lifter

专利摘要:
According to the present invention there is provided a wheel lifter (1) having a frame (2) provided with wheels and carrying a column (4) and the wheel lifter (1) being characterized in that it comprises a pivot arm (5). ) with at least two wheel holders (6). According to the invention, a flexible wheel lifter is obtained which can be used to change the wheels faster than with the existing wheel lifters. It is possible to complete a hub at one time, so that there will be only four workstations as opposed to now, where a wheel change will involve eight workstations.
公开号:DK201870558A1
申请号:DKP201870558
申请日:2018-08-30
公开日:2020-01-16
发明作者:Kjælder Tom；Kjærulff Lars
申请人:Ac Hydraulic A/S；
IPC主号:

专利说明:

Wheel lifter
The present invention relates to wheel lifters having a frame provided with wheels and carrying a pillar.
Wheel lifters of the above type are especially used in connection with wheel changes and tire repairs. The wheel lifter is designed to receive a wheel in a wheel carrier when released from the hub of a vehicle. Then, for example, the wheel can be driven to a storage place or deck and then lifted or lowered into place. This can be done using a manual hydraulic pump, which can be foot operated, but the wheel lifters available on the market today are generally driven by pneumatics or electrical engineering. If wheels are to be changed, as is often the case when switching from summer to winter wheels and vice versa, the new wheel is placed on the wheel lifter, which is then pushed to the vehicle. Here the positioning can be adjusted in the vertical direction so that the wheel is placed correctly next to the hub. Most often, the wheel holder includes two branches that are provided with rollers so that the wheel can be easily angled to fit the holes in the wheel with holes or threads on the hub. When the wheel fits in height and the holes are correctly positioned, the wheel is pushed into place and screwed with wheel bolts or wheel nuts.
Wheel lifters are a great help in tire and wheel change as they help reduce the hard physical work of lifting wheels off and on a hub and off and on a tire machine or storage facility. Known wheel lifters, however, have the disadvantage of having to drive back and forth many times (eight trips in total) when changing four wheels. They are also equipped with a high mast, which makes the center of gravity high, especially when transporting the wheel in the raised position.
It is thus the object of the invention to provide a wheel lifter of the above-mentioned type which can improve the working procedures of wheel changes.
DK 2018 70558 A1
According to the characterizing part of claim 1, the equipment according to the invention is characterized in that the wheel lifter comprises a swivel arm with at least two wheel holders.
The new wheel lifter thus differs from the prior art in that it can carry both the new wheel and the old one in the case of wheel changes, whereby the mechanic can complete a hub without having to drive the old wheel or retrieve the new one, which significantly reduces the changing time.
The result is a flexible wheel lifter that can be used to change the wheels faster than with the existing wheel lifters. It is possible to complete a hub at one time, so that there will be only four workstations as opposed to now, where a wheel change will involve eight workstations.
The concept also means that the high mast characteristic of known wheel lifters is replaced by a short column which includes a control panel provided with control buttons for turning and raising / lowering function, but these buttons can also be built into the handles for easier operation, especially when moving the wheel lift. The short bar ensures that the center of gravity is lowered and the new design means that the mechanic's working conditions are significantly improved.
According to claim 2, the wheel lifter according to the invention is characterized in that the wheel holders are designed as cradles, each comprising two branches provided with rollers, the branches of the wheel holders being held at the same height when the pivot arm is moved by means of a moving system.
In this way, the wheel cradles are kept horizontal and the wheel is easy to rotate when mounted.
DK 2018 70558 A1
According to claim 3, the movement system comprises an endless tensile transfer element. Such a tensile transfer element may, for example, be a belt or chain, and in the preferred embodiment, it is a toothed belt provided with at least one belt tensioner.
A toothed belt will ensure that the positioning of the elements is maintained when properly tightened, and at the same time there will be some elasticity in the turning function.
In the preferred embodiment, the toothed belt is provided with four belt tensioners located symmetrically around a central fixed toothed pulley. In this way, a good tightening of the belt is ensured, while the placement of the belt tighteners near the central fixed toothed pulley ensures a good power transmission and minimizes the risk of the system getting out of step.
According to claim 6, the rotational movement is ensured by means of an electric actuator and a gear in the form of a toothed rod and a toothed wheel which converts the translational movement into a rotary movement, or by means of an electric motor with a worm gear, and the raising / lowering movement. is created using an electric actuator that drives the motion directly. The turning movement and the up and down movement can, as will be obvious to one skilled in the art, be performed in many ways, for example by hydraulics or compressed air, but it is preferable here to use electric actuators or electric motors.
According to the preferred embodiment, the bearing wheels are castor wheels where the pivot movement can be locked, however, the two front or rear wheels may be fixed castor wheels. This makes it possible to lock the wheel lifter against
GB 2018 70558 A1 lateral movement so that it can be driven straight back and forth without changing the lateral position during the working process
In one possible embodiment, the wheel lifter comprises a laser controller or camera and a calculator which can be used to control the position of the wheel lifter with the desired degree of automation. In this way, the mechanic can get help to position the wheel lifter correctly in relation to the hub.
In some cases (for example, with very narrow wheels) it would be advantageous if the wheel cradles are provided with means for holding the wheels.
The wheel lifter according to the invention may also advantageously be provided with working lights for illuminating the working area.
The invention will be explained in more detail below with reference to the drawing, in which
FIG. 1 is a rear view of an embodiment of the wheel lift according to the invention, that is, from the side from which it is pushed and operated from,
FIG. 2 shows the wheel lifter of FIG. 1 from the front, that is, from the side facing a vehicle at a wheel change,
FIG. 3 shows the wheel lifter seen since,
FIG. 4 shows a section through the wheel lifter of FIG. 3
FIG. 5 also shows the wheel lifter side, and
FIG. 6 shows a section through the wheel lifter of FIG. 5th
DK 2018 70558 A1
Referring now in particular to FIG. 1 and 2, there is shown a wheel lift 1 consisting of a frame 2 with four castor wheels 11, 12 mounted on wheel brackets 22, a column 4 and a pivot arm 5. On the pivot arm 5 are two wheel cradles 6 with each two branches 3 which are always kept at the same height as will be described below. The functions of the wheel lifter 1 are controlled by means of a control panel 7 with buttons 8 for rotation and for raising and lowering functions. Above the control panel 7 is a tray 9 for storing wheel bolts during wheel change. The wheel lifter 1 is towed with a fork-shaped handle 10 which has a large distance between the forks, which ensures easy access to the hub of the vehicle which must have changed wheels. It is also possible to place the buttons for controlling rotation and raising / lowering function in the handle 10. However, this is not shown in the figures. Under the wheel lifter 1 are four castor wheels 11, 12, of which the two front, which are pivotal castor 11, can be locked against pivotal movement when the wheel lifter 1 is in place, so that no repeated lateral adjustment of the wheel lifter 1 during wheel change is required.
Referring now to FIG. 3 and 4. It can be seen here that the swivel arm 5 of the wheel lifter 1 is caused to rotate by means of an electrically driven actuator 13, which sits on the profile 14, which is mounted inside the column 4. The same profile 14 can be raised and lowered by a likewise electrically driven lift actuator 15 mounted in the bottom of the profile 14 and connected to the column 4. In order to contribute to a low center of gravity and thus ensure the stability of the wheel lifter 1, batteries for supplying the actuators 13, 15 with power are mounted in the frame. 2. When actuator 13 is actuated, arm 5 is rotated. In this case, some form of exchange is advantageously used to obtain a suitable relationship between the travel of the actuator 13 and the rotation of the arm 5. When the lifting actuator is activated, the column 4 is moved up and down and no exchange is needed.
DK 2018 70558 A1
Referring now to FIG. 5 and 6. As shown, the wheel cradles 6 each comprise two plate parts and two rollers on which the wheels stand. The wheel cradles 6 are suspended over the rollers and are guided by a toothed belt system 16 comprising a fixed toothed pulley 17, two movable toothed discs 18 and 19 and a toothed belt 20. As the pivot arm 5 is caused to rotate, the toothed belt system 16 due to the fixed central wheel 17 and the two rotating wheels 18 and 19 ensure that the wheel cradles 6 are always held in a horizontal position, whereby the wheels cannot be immediately tilted by the wheel cradles 6. To ensure that the toothed belt 20 is always tight, there are tension rollers 21 and these also ensure that the toothed belt 20 has a secure engagement with the central toothed pulley 17.
When changing wheels, the new wheel is typically placed on the lower wheel cradle of the wheel lifter 1, after which it is driven to the wheel of the vehicle. At the vehicle, the height of the upper wheel cradle is adjusted to fit the vehicle's hub. Next, the two rotatable castor wheels 11 can be locked in their lateral movement. The empty cradle is driven under the wheel of the vehicle. Remove the wheel and temporarily store the wheel bolts in tray 9.
The wheel lifter 1 can then be retracted and the swivel arm 5 rotated so that the wheel that is removed comes down and the wheel to be mounted comes at the top. The wheel lifter 1 is then driven towards the hub, where the height and lateral position have already been adjusted, and the wheel is mounted on the vehicle.
The swivel assembly 16 of the wheel lifter 1 is mounted on a profile 14 which sits inside the column 4. As mentioned, the profile 14 in the column is raised and lowered by means of an actuator 15, and is used exclusively to adjust the height of the cradle 6 to the vehicle hub. The rotation of the pivot arm 5 is effected by means of the actuator 13 which ensures that the pivot arm 5 runs 180 degrees. This process can advantageously run automatically in the illustrated embodiment while the raising / lowering arm of this example is activated by manual operation, but it can be automated based on camera technology and a calculator.
DK 2018 70558 A1
During rotation of the swivel arm 5, the wheel cradles 6 are held in a horizontal position by means of a toothed belt system 17 which comprises, in addition to the toothed belt 21, a centrally located toothed wheel 18, which is held on the column 4, while the wheels 19 and 20, located near each of them end of the swivel arm 5, can rotate.
DK 2018 70558 A1
Reference signs:
Wheel lifter
Frame
branches
Pillar
swivel arm
Wheel Cribs
Control panel
Buttons
Tray
Handle
Swivel castor wheels
Fixed castor wheels
Rotary motion actuator / motor
Profile
Actuator / motor for raising / lowering movement
Tandremssystem
Fixed central wheel
Rotating wheels
Rotating wheels
Timing belt
Idler rollers
Wheel Consoles

权利要求:
Claims (10)
[1]
1. Wheel lifter (1) having a frame (2) fitted with wheels and carrying a column (4), characterized in that the wheel lifter (1) comprises a swivel arm (5) with at least two wheel holders (6).
[2]
Wheel lift (1) according to claim 1, characterized in that the wheel holders (6) are formed as wheel cradles, each comprising two branches (3) provided with rollers, the branches (3) of the wheel holders (6) being held at the same height. when the swivel arm (5) is moved by means of a moving system (16).
[3]
Wheel lift (1) according to claim 1 or 2, characterized in that the moving system comprises an endless tensile transfer element (20).
[4]
Wheel lifter (1) according to any one of the preceding claims, characterized in that the endless tension transfer element (20) is a toothed belt and is provided with at least one belt tensioner (21).
[5]
Wheel lift (1) according to any one of the preceding claims, characterized in that the timing belt (20) is provided with four belt tensioner (21) which is symmetrically arranged around a central fixed toothed pulley (17).
[6]
Wheel lift (1) according to any one of the preceding claims, characterized in that the turning movement is provided by means of an electric actuator (13) and an exchange in the form of a toothed bar which engages teeth on the fixed central toothed pulley (17), and a toothed wheel which converts the translational motion into a rotary motion, or an electric motor with worm gear, and
GB 2018 70558 A1 / lowering movement is provided by a direct acting electric actuator / motor (15).
[7]
Wheel lifter (1) according to any one of the preceding claims, characterized in that the supporting wheels are rotatable castor wheels (11, 12), wherein the rotary movement can be locked, however the two front or rear wheels can be fixed castor wheels ( 12).
[8]
Wheel lifter (1) according to any one of the preceding claims, characterized in that it comprises a laser controller or camera and a calculator which can be used to control the position of the wheel lifter (1) with the desired degree of automation.
[9]
Wheel lift (1) according to any one of the preceding claims, characterized in that the wheel holders (6) are provided with means for holding the wheels.
[10]
Wheel lift (1) according to any one of the preceding claims, characterized in that it is provided with working lights for illuminating the working area.

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同族专利:

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公开号 | 公开日

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DK180009B1|2020-01-16|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2020-01-16| PAT| Application published|Effective date: 20200116 |

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2020-01-16| PME| Patent granted|Effective date: 20200116 |

优先权:

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申请号 | 申请日 | 专利标题

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DKPA201870558A|DK180009B1|2018-08-30|2018-08-30|Wheel lifter|DKPA201870558A| DK180009B1|2018-08-30|2018-08-30|Wheel lifter|