KR100654914B1 - Apparatus for horizon maintenance and wheel chair lift comprising the same - Google Patents

Abstract

The present invention relates to a leveling device including a lever composed of multiple joints and a wheelchair lift using the same.

In particular, a leveling device including a fixed shaft, a rotating shaft, and a plurality of levers configured to be applied not only to the boarding point of the aerial work device but also to a construction site, and a lift equipped with a boarding table in the articulated lever of the leveling device. The present invention relates to a wheelchair lift that enables the elderly and wheelchair users to get on and off in public transportation such as buses with a simple operation.

Wheelchair, Elderly, Disability, Lever, Boarding, Table, Aerial Work, Leveling

Description

Apparatus for horizon maintenance and wheel chair lift comprising the same}

1A is a front view of a wheelchair lift apparatus according to the present invention.

1B is a side view of a wheelchair lift device in accordance with the present invention.

Figure 1c is a plan view of a wheelchair lift apparatus according to the present invention.

Figure 2a is a plan view of the horizontal holding portion of the leveling device and the wheelchair lift according to the present invention.

FIG. 2B is a detail view of portion A of FIG. 2A; FIG.

Figure 3a is a plan view of the running portion of the wheelchair lift apparatus according to the present invention.

Figure 3b is a side view of the running portion of the wheelchair lift apparatus according to the present invention.

Figure 3c is a front view of the running portion of the wheelchair lift apparatus according to the present invention.

Figure 4 is a flowchart illustrating the operation when boarding the bus using a wheelchair lift device according to the present invention.

5 is a schematic view of a bus platform for boarding using a wheelchair lift in accordance with the present invention.

6 is a front view and a side view showing an example of a wheelchair user boarding a wheelchair lift according to the present invention waiting to board a bus.

Figure 7 is a front view and a side view showing the moment the wheelchair user boarding a bus in a wheelchair lift according to the present invention.

8 is a front view of the leveling device according to the present invention.

9 is a lever operation diagram for explaining the lever operation of the horizontal holding apparatus according to the present invention.

10 is a front view showing an example of the aerial work vehicle to which the leveling device according to the present invention is applied.

[Description of main part of drawing]

2: base frame 4: first fixed shaft

5: 2nd fixed shaft 7: 1st lever

8: 2nd lever 9: rotating shaft

16, 18: Hydraulic cylinder 19: End table

20: boarding table 22: front and rear movement rack gear

23: left and right movable rack gear 26: forward and backward movement motor

27: left and right moving motor 28: motor base

29: forward and backward movement bearing rail 30: left and right movement bearing rail

31: left and right movement bearing 32: forward and backward movement bearing

36: all stopper 37: rear stopper

38: sensor 39: position recognition coordinates

40: operation panel 41: number plate

The present invention relates to a horizontal holding device using a lever composed of multiple joints and a wheelchair lift using the same.

More specifically, a leveling device including a fixed shaft, a rotating shaft, and a plurality of levers configured to be applied not only to the boarding point of the aerial work device but also to a construction site, and a boarding table on the articulated lever of the leveling device The present invention relates to a wheelchair lift that allows an elderly person and a wheelchair user to ride on a lift and easily get on and off public transportation such as a bus with a simple operation.

In general, a high altitude work device is used for work at heights beyond the normal ladder height, such as repair work on an elevated road, painting work, or facility repair work on a high-rise structure such as an apartment, or lifting and unloading cargo. It is a device that can be used very appropriately when needed.

It is common for such aerial work equipment to work at a high place of three stories or more.

In most cases, because the operator boards the board connected to the terminal boom of the aerial work device, even if the angle of refraction of the boom constituting the aerial work device changes depending on the working height, the boarding board installed at the front end of the final boom must be horizontal. You must keep it.

The present invention relates to a leveling device that can be applied to the connection structure of the end boom and the boarding board connected to the end boom.

In addition, the present invention relates to a wheelchair lift having a boarding table that allows the elderly and / or wheelchair users to board the leveling device.

In particular, an elderly person or a wheelchair user who rides on the boarding table of the wheelchair lift recognizes the identification number of the public transportation that he / she wants to board in a tower-type operation panel located on one side of the boarding table, The present invention relates to a wheelchair lift that can be operated on public transportation.

As the quality of life improves with the development of society, interests for the elderly and the disabled are increasing day by day, and substantial investments are being made in improving the environment for them, especially in some countries. In the facility or commercial area, it is mandatory for convenience facilities for the elderly and the disabled, such as wheelchair lifts.

In general, the wheelchair lift for the handicapped according to the prior art, which is widely used, is simply formed in a plate-like structure having an inclination angle, which is mounted by manual operation when stopping a public transportation vehicle such as a bus. Installed so that the structure is configured to get on and off the wheelchair along the slope.

However, in the case of elevating a disabled person using a lift as described above, a companion must be able to move the wheelchair occupied by the disabled person, and safety devices for preventing the departure of the disabled person on the inclined lift plate are not provided. There is a problem that can cause a safety accident.

As a prior art for solving the above problems, a lift using an indirect drive cylinder has been developed and used.

Lift using an indirect drive cylinder The board is formed in the lower end of the lift main body incorporating the indirect hydraulic system, the board is accommodated, the lift body is configured to be rotated by a fixed shaft.

This configuration allows the lift body installed on the fixed shaft to be rotated 180 ° outside the vehicle by manual operation while the public transportation means such as a bus stops, and then the lift is guided up and down by the height of the floor of the vehicle. It is a structure that allows people with disabilities to get on or off.

Wheelchair lift using the indirect drive cylinder of the above has the advantage of being a stable force by the hydraulic operation method and to get on and off the handicapped people who are dependent on the wheelchair conveniently.

However, the above-described prior art requires excessive operating time due to a complicated structural defect in which the operation relationship by manual operation and the operation by hydraulic operation must be performed in parallel.

In addition, the inconvenience of using the wheelchair lift must be necessary for the help of the crew or the surroundings.

The present invention has been made to solve the problems of the prior art as described above, to ride on a wheelchair lift device equipped with a boarding table at the same height as the ground, to get on and off public transport means such as buses without a simple operation around The purpose is to provide a wheelchair lift.

In addition, the present invention is not only applicable to the horizontal maintenance of the wheelchair lift as described above, but also has an object to provide a horizontal maintenance device that can be applied to the aerial work device, etc. to promote the safety of the operator.

In order to achieve the horizontal maintenance of the boarding box applied to the aerial work device and the like of the above object, in the horizontal holding device using the articulated lever, is fixedly coupled to the base frame, are sequentially connected using a plurality of levers A fixed shaft constituting a joint structure, to which a plurality of sprockets are fixedly coupled; A rotating shaft rotatably coupled to the distal lever of the lever coupled to the fixed shaft to form a joint, and the plurality of sprockets fixedly coupled; A chain connected to the sprocket of the fixed shaft and the rotating shaft; And a plurality of hydraulic cylinders for driving the joint structure.

In addition, another object of the present invention provides a wheelchair lift using the leveling device to configure a wheelchair lift that can be easily used by the elderly and disabled.

The wheelchair lift is connected to the distal end of the leveling device, characterized in that it comprises a transfer unit for moving the elderly or wheelchair.

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The transfer unit, a traveling unit coupled to the movable upper surface; And a boarding table coupled to the upper surface of the driving unit so as to be movable.

The driving unit may include a rack gear unit including a front and rear movable rack gear fixedly coupled to an upper surface of the vertical table, and a left and right movable rack gear fixedly coupled to the lower surface of the boarding table; A drive unit including a front and rear movement motor having a pinion engaged with the front and rear movement rack gear of the rack gear part, and a left and right movement motor having a pinion engaged with the left and right movement rack gears; A motor base in which the driving unit is built and mounted; A rail unit including a forward and backward movement bearing rail fixedly coupled to an upper surface of the longitudinal table and a left and right movement bearing rail fixedly coupled to a lower surface of the boarding table; And a bearing unit configured to be fixedly coupled to the upper surface of the motor base to move along the left and right movement bearing rails, and to be moved back and forth to move along the front and rear movement bearing rails. Characterized in that configured.

The front of the boarding table is characterized in that the detection sensor for detecting the position of the wheelchair lift is mounted.

The technical idea pursued by the present invention is to configure a leveling device including a multi-joint lever portion for the horizontal maintenance of the boarding board connected to the end of the device used for aerial work, and the wheelchair lift using the leveling device.

Hereinafter, the leveling device will be described.

[Leveling Device]

Horizontal holding device according to the present invention that can be applied to aerial work is largely fixed to the base frame, the base frame, a plurality of fixed shafts are sequentially connected by a plurality of levers to form a joint structure, and coupled with the fixed shaft It is composed of a rotating shaft rotatably coupled to the distal lever of the lever constituting the joint.

Hereinafter, after explaining the operation principle of the leveling device according to the present invention with reference to FIGS. 8 to 10, the leveling device according to the present invention will be described in more detail with reference to FIGS. 2A and 2B.

8 is a front view of the leveling device according to the present invention, Figure 9 is a lever operation view for explaining the lever operation of the leveling device according to the present invention, Figure 10 is a height-lifting operation to which the leveling device according to the present invention is applied It is a front view which shows an example of a vehicle.

As shown in FIG. 8, the horizontal holding device 50 is coupled to the bracket 52 fixed to the lower base frame 51.
As shown in FIG. 8, the joint structure includes a plurality of first and second fixed shafts 54, 56, and two axes connecting the two shafts using bearings 6a and 6b (see FIG. 2a). First lever 55 (see reference numeral 7 in FIG. 2A), second lever 57 and second lever 57 connected to the second fixed shaft 56 using bearings 6c (see FIG. 2A). It is composed of a rotating shaft 58 rotatably connected to).

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A first hydraulic cylinder 53 is hinged to one side of the base frame 51, and the first hydraulic cylinder 53 is a pin 17 formed on the first lever 55 (see FIG. 1B). It is a structure that is pinned to.

In addition, one side of the second hydraulic cylinder 60 is hinged to the upper portion of the first lever 55, and the other side of the second hydraulic cylinder 60, the longitudinal end in which the rotary bracket 59 is welded The pin is coupled to the pin (not shown) formed on the lower surface of the table (61).

The boarding table (63) shown in FIG. 10 is installed in the table 31 to facilitate the safety of the worker by easily maintaining the level of the table 61 in the height of the telephone pole 66 and the like. It is a structure that can be.

A schematic mechanism of the leveling device 50 configured as described above will be described with reference to FIG. 9. The principle of operation of the leveling device 50 will be more clearly understood in the description of the leveling part of the wheelchair lift to which the present leveling device 50 is described below.

As shown in FIG. 9, the horizontal holding device 50 of the present invention includes a plurality of first and second fixed shafts 54 and 56 and a rotation shaft 58. The axes form a joint structure using the first lever 55 and the second lever 57.

The longitudinal table 61 is fixedly coupled to the rotary shaft 58 so as to rotate together with the rotation of the rotary shaft 58.
In addition, since the first and second hydraulic cylinders 53 and 60 are connected to the first lever 55 and the vertical table 61, the first lever 55 and the vertical table 61 may be driven by the operation of the hydraulic cylinders 53 and 60.

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The movement displacement α of the first hydraulic cylinder 53 is generated such that the first lever 55 is moved θ ₁ . Thereafter, a movement displacement α 'of the second hydraulic cylinder 60 connected to one side of the first lever 55 and the lower surface of the vertical table 61 is generated, and at the same time, the angular displacement of the second lever 57 θ ₂ ) is generated so that the horizontal table 61 can be horizontally maintained, thereby changing the height displacement of the vertical table 61.

The horizontal maintenance principle of the vertical table 61 is as follows: the first and second fixed shafts 54 and 56, the rotation shaft 58, the first and second levers 55 and 57, and the first and second hydraulic cylinders. It is possible in the connection structure consisting of (53, 60) and the vertical table (61).

The more obvious coupling relationship will be explained more clearly by adding sprockets and chains coupled to the respective shafts 54, 56, 58 in the horizontal holding portion of the wheelchair lift to which the present leveling device 50 is mentioned below. Will be.

10 is a view showing an example in which the leveling device according to the present invention is applied, the leveling device 50 using the bracket 64 is fixed to the distal end of the multi-stage boom 62 connected to the aerial work vehicle 65 Is combined to show an example of approaching aerial work, such as telephone pole (66).

Hereinafter, a wheelchair lift according to the present invention to which the horizontal holding device as described above is applied.

[Wheelchair lift]

The wheelchair lift composed of the main member of the horizontal holding device is largely composed of a base frame, a horizontal holding device connected to the base frame, and a transfer part connected to the distal end of the horizontal holding device to move the elderly or the wheelchair.

Hereinafter, the main members of the present invention will be described in more detail with reference to FIGS. 1A to 3C.

Base frame

The base frame 2 is a structure fixedly coupled to the bottom surface of the pit 1 (see Fig. 4). The bracket 3 is fixed to the upper surface of the base frame 2 using a bolt.

The first fixed shaft (4) is fixedly coupled to the bracket (3), the first fixed shaft (4) is configured to be impossible to rotate.

Leveling device

As shown in FIGS. 1A and 1B, the leveling device includes a plurality of first levers connecting the first fixed shaft 4, the second fixed shaft 5, and the two shafts using bearings 6a and 6b. (7), a second lever (8) connected to the second fixed shaft (5) using a bearing (6c), a rotating shaft connected to the second lever (8) rotatably using a bearing (6d) (9) and a longitudinal table 19 fixed by a rotating bracket coupled to the rotary shaft 9.

2A and 2B, the horizontal holding apparatus will be described as follows.

FIG. 2A is a plan view of the leveling device, and FIG. 2B is a detailed view of portion A of FIG. 2A.

Since the first fixed shaft 4 is fixedly coupled to the bracket 3, the first fixed shaft 4 is configured to be incapable of rotation, and both sides of the first fixed shaft 4 are provided with the first sprocket 10. It is fixedly connected to 4 without rotation.

The second outer sprocket 11 is fixedly coupled to both sides of the second fixed shaft 5 connected to the first fixed shaft 4 using the first lever 7, and the second lever 8 is The second inner sprocket 12 is also fixedly coupled to the second fixed shaft 5 to be connected.

In addition, the third sprocket 13 is fixedly coupled to the rotation shaft 9 connected to the end of the second lever 8 connected by using the second fixed shaft 5 and the bearing 6c.

The first sprocket 10 fixedly coupled to the first fixed shaft 4 fixedly coupled to the bracket 3 and the second outer sprocket 11 fixedly coupled to the second fixed shaft 5 Since the first chain 14 is configured to be interlocked with each other, the second fixed shaft 5 is also fixed as the first fixed shaft 4 is coupled to the bracket 3 so that rotation is impossible. The second inner sprocket 12 fixedly coupled to the second fixed shaft 5 is also configured to interlock with the third sprocket 13 and the second chain 15 fixedly coupled to the rotary shaft 9. have.

In addition, each of the plurality of first levers 7 includes a first hydraulic cylinder 16 hinged to one side of the base frame 2 and a pin 17 protruding inside the first lever 7. ) And a second hydraulic cylinder (18) is hinged to the upper one side of the first lever (7) to be connected to a vertical table (19).
The vertical table 19 will be described below.
Brackets 21 are welded to the longitudinal table 19 at both lower ends of the longitudinal table 19, and the rotary bracket 21 is rotatable with the rotation of the rotary shaft 9. It is a structure that is fixedly coupled.
In addition, as mentioned above, the second hydraulic cylinder 18, which is hinged to the upper side of the first lever 7, is pinned to the bottom of the vertical table 19.
For reference, as mentioned above, the horizontal holding portion is composed of the hydraulic cylinders 16 and 18, the fixed shafts 4 and 5, and the rotating shaft 9. This is because 19 is connected.
The horizontal principle of the vertical table 19 connected to the end of the horizontal holding unit configured as described above will be described with reference to FIGS. 2A, 2B, and 4.
The vertical table 19 should be level even when the first hydraulic cylinder 16 connected to the base frame 2 and the first lever 7 is operated, and the upper one side of the first lever 7 and the vertical table ( 19) Even though the second hydraulic cylinder 18 connected to the lower surface should be kept horizontal, the horizontal maintenance relationship of the vertical table 19 according to the operation of the two hydraulic cylinders 16 and 18 will be described separately. .
When the first hydraulic cylinder 16 connected to the base frame 2 and the first lever 7 is operated, the first fixed shaft 4 is fixedly coupled to the bracket 3 connected to the base frame 2. Therefore, the rotation is impossible, and the first lever 7 coupled to the first fixed shaft 4 by using the bearing 6a is vertically raised.
At this time, the first sprocket 10 fixedly coupled to the first fixed shaft 4 and the second outer sprocket 11 fixedly coupled to the second fixed shaft 5 are wound to be interlocked with the first chain 14. For this reason, the first fixed shaft 4 is fixed by the bracket 3, so that the second fixed shaft 5 cannot be rotated and fixed.
Accordingly, the angle between the second lever 8 and the ground is fixed to the second fixed shaft 5 even when the first lever 7 is vertically raised, and the first lever 7 and the longitudinal table 19 are fixed. By the coupling configuration of the second hydraulic cylinder (18) connected to both the rotatable elements of the second fixed shaft (5) and the second lever (8) is to maintain the horizontal of the vertical table (19).
When the second hydraulic cylinder 18 connected to the upper side of one side of the first lever 7 and the lower surface of the longitudinal table 19 is operated, the second fixed shaft 5 is fixed due to the aforementioned members. Therefore, as the rotary shaft 9 rotates in the counterclockwise direction (based on the plane of FIG. 4), the second hydraulic cylinder 18 pushes up the vertical table 19 so that the bearing 6c is coupled to the second fixed shaft 5. The second lever 8 is raised so that the vertical table 19 is kept horizontal.
That is, the second lever 8 of the cantilever shape having the second fixed shaft 5 as the fixed node is raised or lowered by the moving displacement of the hydraulic cylinder 18 to maintain the horizontal displacement.
In other words, when the second hydraulic cylinder 18 rises, as the rotary shaft 9 rotates counterclockwise to raise the second lever 8, the displacement of the second hydraulic cylinder 18 is changed to the rotary shaft 9. Absorption by the rotation of) keeps the vertical table 19 horizontal.
On the contrary, when the second hydraulic cylinder 18 is lowered, as the rotary shaft 9 rotates clockwise (based on the plane of FIG. 4) to lower the second lever 8, the movement of the second hydraulic cylinder 18 is performed. The displacement is absorbed by the rotation of the rotary shaft 9 to keep the vertical table 19 horizontal.

Conveying part

The transfer part includes a traveling part coupled to the upper surface of the vertical table 19 so as to be movable, and a boarding table 20 coupled to the upper surface of the traveling part.

Hereinafter, the running portion will be described.

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The driving part is located between the upper surface of the vertical table 19 and the lower surface of the boarding table 20 to be described below, and is a main component of the present invention configured to be able to move the boarding table 20 back and forth, left and right.

The driving part is largely a rack gear part, a driving part having a moving motor configured to mount a pinion engaged with the rack gear part, a built-in fraudulent driving part, a motor base mounted thereon, a rail part for guiding the moving part, and the rail part It consists of a bearing part moving along.

Hereinafter, the main member configuration of the driving unit will be described in more detail with reference to FIGS. 3A to 3C.

The rack gear portion includes a front and rear movable rack gear 22 fixedly coupled to an upper surface of the vertical table 19, and a left and right movable rack gear 23 fixedly coupled to the bottom surface of the lift table 20.

The drive unit includes a front and rear movement motor 26 having a pinion 24 engaged with the front and rear movement rack gear 22, and a left and right movement motor having a pinion 25 engaged with the left and right movement rack gear 23. 27).

The front and rear movement motor 26 and the left and right movement motor 27 are fixed to the motor base 28 using bolts.

The rail unit includes a forward and backward moving bearing rail 29 fixedly coupled to an upper surface of the longitudinal table 19, and a left and right moving bearing rail 30 fixedly coupled to a lower surface of the boarding table 19.

In addition, the bearing portion moving along the rail portion is fixedly coupled to the upper surface of the motor base 28, the left and right movement bearing 31 moving along the left and right movement bearing rail 30, fixed to the lower surface of the motor base 28 It is composed of a forward and backward movement bearing 32 coupled to move along the forward and backward movement bearing rail (29).

Description of the operation of the driving unit configured as described above will be described together in the sensing unit mentioned below.

The boarding table 20 will be described below.

The boarding table 20 is positioned above the driving unit in a structure in which the left and right movement bearing rails 30 mounted on the lower surface of the boarding table 20 are inserted into and placed in the left and right movement bearings 31 of the driving unit. .

In addition, as shown in FIGS. 1A to 1C, the handrail 33 is welded to the boarding table 20, and using a two-segment link 35 connected to a pin on one side of the handrail 33. The folding chair 34 is configured to allow the elderly, not the wheelchair user, to use the folding chair 34 by unfolding it.

The front and rear of the boarding table 20 is equipped with all the stopper 36 and the rear stopper 37, which promotes the safety of the occupant when the wheelchair user boarded on the boarding table 20 To this end, a driving motor (not shown) for driving the all stopper 36 and the rear stopper 37 is embedded in the boarding table.

Although not shown, the all stopper 36 and the rear stopper 37 may be modified within the scope of the claims pursuant to the present invention through a control panel, and may be variously configured. will be.

In addition, the sensor 38 is mounted on the front of the boarding table 20 to detect the position of the wheelchair lift of the present invention.

A sensor (not shown) of the control panel 40 (see FIG. 6) installed in the platform detects the position recognition coordinates 39 (see FIG. 6) attached to the bus entrance mentioned in the operation relationship of the wheelchair lift apparatus according to the present invention. When the above-mentioned driving unit moves left and right according to the position recognition coordinates (39, see FIG. 6) of the bus, and the wheelchair lift moves back and forth into the bus, the position search of the wheelchair lift according to the forward and backward movement is performed. The detection sensor 38 is performed.

The wheelchair lift to which the leveling device according to the present invention is applied includes a control panel on one side of a platform in which a wheelchair lift is located in order to use a public transportation such as a bus by a user who rides on a wheelchair lift including a base frame, a leveling part, and a conveying part. Configure.

The operation panel is not configured to be attached to the wheelchair lift, but the wheelchair lift device according to the present invention is driven to form a tower-type operation panel located on one side of the platform to board the public transportation means such as a bus to identify the bus to be boarded. To recognize the number.

Accordingly, the present invention is not to limit the detailed configuration and operation of the operation panel to the claims, but merely to request an operation panel that can recognize the identification number of the public transport to the user using the wheelchair lift device of the present invention. Further, more detailed linkage with the wheelchair lift device is mentioned in the operation relationship of the wheelchair lift device below.

Hereinafter, the operation relationship of the wheelchair lift apparatus according to the present invention will be described in more detail with reference to FIGS. 4 to 7.

The operation relationship of the wheelchair lift device will be described by dividing the public Kyoto, such as a bus when getting on and off.

When boarding

As shown in Figure 5, the disabled and the elderly platform is equipped with a wheelchair lift device of the present invention is configured separately from the route bus general stop.

Therefore, the elderly or disabled arrive at the platform separately configured as shown in Figure 5, the wheelchair lift device of the present invention is installed in the pit (1) as shown in Figure 4, the boarding table 20 is the same height as the ground Boarded to (see Figure 6) (s100).

At this time, the occupant recognizes the identification number of the bus to be boarded by operating the operation panel 40 by boarding the wheelchair lift device, and when the bus driver displays his bus number on the number display plate 41 in the platform structure as shown in FIG. You will be stopped at the platform for the disabled and the elderly.

When the bus of the number indicated on the number display plate 41 arrives at the platform for the disabled and the elderly, the bus driver transmits a boarding signal to the wheelchair lift device by remote operation and controls the movement of the wheelchair lift device. In (not shown) command the operation of the wheelchair lift device.

For reference, the remote control means of the bus driver is composed of a remote controller, the electrical control configuration of the reception control panel (not shown) that can be interlocked by the command of the remote controller can be easily configured by those skilled in the art would.

When the riding signal is received as described above, the rear stopper 37 is closed, and the first lever 7 is raised due to the operation of the hydraulic cylinder 16 (see FIG. 1A).

At this time, the sensor (not shown) configured in the operation panel 40 detects the position recognition coordinates 39 (see FIGS. 6 and 7) attached to one side of the bus entrance (S200).

When the position of the bus entrance is determined as described above, the position error between the user currently boarding the boarding table 20 and the bus entrance is detected, and the position error detected by a sensor (not shown) configured in the operation panel 40 is obtained. When the cylinder connected to the second lever 8 (see FIG. 1A) and the end table 19 is operated to correct the height error between the bus entrance and the wheelchair lift, the boarding table 20 moves from side to side, The user can be located in front of the doorway (S300).

When the wheelchair lift user is positioned to enter the bus entrance as described above, both the driving unit and the boarding table 20 are advanced along the front and rear bearing rails 29 (see FIG. 3A) on the upper surface of the longitudinal table 19 to allow the wheelchair lift user. It is possible to enter the bus is able to ride (s400).

At this time, when the internal position of the bus is detected by the sensor 38 mounted on the front of the boarding table 20, the operation of the boarding table 20 and the driving unit is stopped, and all the stoppers 36 (refer to FIG. 1A) are horizontal. It can be easily dismounted by wheelchair occupants or the elderly.

When the wheelchair occupant or the elderly person gets off the bus as described above, when the bus driver sends a return signal to the wheelchair lift device by remote operation, all stoppers 36 (refer to FIG. 1A) are closed and retracted to the initial position and the initial pit ( 1) is lowered to the position and completes the operation while lowering the rear stopper (37).

When getting off

As the operation of the wheelchair lift device at the time of getting off is made in a symmetrical order as opposed to the time of getting on, the procedure of the wheelchair lift device will be briefly described.

When getting off, when the disabled and the elderly on the bus signal to the bus driver, the bus driver stops at the disabled and the elderly platform as shown in FIG.

Subsequently, when the bus driver uses the remote controller to send a disengagement signal to a wheelchair lift device located in the platform, the wheelchair lift device that receives the disengagement signal operates the above-mentioned boarding operation without a passenger to the bus door. Will proceed.

Afterwards, when a wheelchair user or a passenger rides on the wheelchair lift device, the bus driver sends a signal for getting off again, and the wheelchair lift device that receives the getting off signal closes the rear stopper 37 and puts the user on the bus at the time of boarding. By descending and returning to the rear initial position, the user proceeds sequentially so that the user can get off the elevator.

As mentioned above, according to the present invention, by providing a leveling device that can be applied to the aerial work vehicle and the end boom of the device, it is expected that the effect to ensure the stability for the aerial worker.

In addition, by providing a wheelchair lift to which the leveling device is applied, a disabled person and an elderly person can ride a public transportation such as a bus by a simple operation without assistance of the surroundings in a platform in which the disabled and the elderly are separated, so that the disabled and the elderly who have difficulty in mobility The effect of granting easier access and access to public transport facilities is expected.

Claims (6)

In the leveling device using the articulated lever, A first fixed shaft fixedly coupled to the bracket on the base frame; And, A pair of first sprockets fixedly coupled to both sides of the first fixed shaft; A pair of first levers accommodating the pair of first sprockets and having one side penetrated by the first fixed shaft; and A second fixed shaft penetrating the other side of the pair of first levers; and, A pair of second outer sprockets fixedly coupled to both sides of the second fixed shaft and accommodated inside the other side of the pair of first levers; A second lever fixedly coupled to one side on the second fixed shaft and positioned between the pair of first levers; A second internal sprocket received inside the second lever and fixedly coupled to the second fixed shaft; A rotating shaft penetrating the other side of the second lever; A third sprocket fixedly coupled to the rotation shaft and accommodated in the second lever; A longitudinal table fixed to a rotating bracket coupled to the rotating shaft to rotate together with the rotating shaft; A pair of first cylinders, one side of which is hinged to the base frame, and the other side of which is mounted to the pair of first levers; A second hydraulic cylinder having one side mounted on one side of the first cylinder while the other side mounted on the vertical table; and, A first chain interlocked between the first sprocket and the second outer sprocket; And a second chain interlocked between the second internal sprocket and the third sprocket. Leveling device according to claim 1; And, And a transfer unit connected to the distal end of the leveling device to move the elderly or the wheelchair. delete The method of claim 2, The transfer unit, A driving unit coupled to the upper surface of the vertical table to be movable; And A boarding table coupled to the upper surface of the driving unit to be movable; Wheelchair lift, characterized in that consisting of. The method of claim 4, wherein The driving unit, A rack gear unit configured of a front and rear movable rack gear fixedly coupled to an upper surface of the vertical table and a left and right movable rack gear fixedly coupled to a lower surface of the boarding table; A drive unit including a front and rear movement motor having a pinion engaged with the front and rear movement rack gear of the rack gear part, and a left and right movement motor having a pinion engaged with the left and right movement rack gears; A motor base in which the driving unit is built and mounted; A rail unit including a forward and backward movement bearing rail fixedly coupled to an upper surface of the longitudinal table and a left and right movement bearing rail fixedly coupled to a lower surface of the boarding table; And A bearing unit comprising a horizontal movement bearing fixedly coupled to an upper surface of the motor base to move along the horizontal movement bearing rail, and a longitudinal movement movement bearing fixedly coupled to the lower surface of the motor base to move along the longitudinal movement bearing rail; Wheelchair lift, characterized in that consisting of. The method of claim 4, wherein Wheelchair lift characterized in that the front of the boarding table is equipped with a sensor for detecting the position of the wheelchair lift.

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