KR20100089675A - Wheel chair lift for bus - Google Patents

Abstract

PURPOSE: A wheelchair lift used for a bus is provided to easily position a plate of a wheelchair regardless of the height of an ascent/descent unit by moving the plate up and down and to stably maintain the horizontal state of the plate. CONSTITUTION: A wheelchair lift used for a bus comprises: a flat plate(10) which includes a guide unit and a wheelchair is boarded in; a second rotary link(42) which is included to be parallel to a first rotary link(41) and fixed to both guide units of the plate; a first driven gear(51) which is fixed to the end of the first rotary link; a second driven gear(52) which is fixed to the end of the second rotary link; a driving gear(60) which is fixed between the first driven gear and the second driven gear; and a guide frame(90) including the first driven gear, the second driven gear, and the driving gear.

Description

Wheelchair Lift for Buses {WHEEL CHAIR LIFT FOR BUS}

The present invention relates to a wheelchair lift of a vehicle, and more particularly, a wheelchair lift for a bus, which is mounted on a lower floor of a bus and seats a wheelchair positioned on a plate, and is safely transported to a hatch of a bus for boarding. It is about.

In general, a wheelchair is a tool device used by a disabled person or an elderly person who is inconvenient to move for safe and convenient movement, and it is easy to move on a flat surface by rotating a wheel, but it is impossible to move up and down a steep slope or stairs. You need help from several people.

Particularly, in the case of a bus, since the car itself is large, the location of the hatch is high, and the hatch is formed in the form of a stairway, so that a person with a disability using a wheelchair cannot ride on the bus alone.

Therefore, as the use of wheelchairs becomes more common and the necessity of care facilities for the disabled is required, the low-floor bus and the wheelchair lift have been developed to overcome the above problems. I'm making it less.

The wheelchair lift is a device configured to be easily mounted on a vehicle while a disabled person or a disabled person including an elderly person sitting in a wheelchair. In the Utility Model Publication No. 20-0300132 filed prior to the present invention, the wheelchair is lifted. In the wheelchair lifting device of the vehicle is installed to be able to enter and exit the lower storage unit side of the lifting platform of the vehicle floor, the lifting plate forms an inclined surface when the main lifting plate is to be landed on the ground and Supporting the flow of the main lifting plate and horizontally moved in the storage bracket, consisting of an extension lifting plate which is hinged to the other end of the main lifting plate foldable, the main lifting plate along the support bracket Sliding movement is coupled, and the end of the support bracket is the The proposed value wheelchair platform of the vehicle, characterized in that bumps are provided to prevent escape been.

In the above configuration, the main platform is configured to allow the wheelchair to ride on the vehicle through the inclined main platform in a state inclined with the platform of the vehicle, the position of the platform in the form of stairs is high Due to the steep inclination, there is a limit that a disabled person who relies on a wheelchair cannot ride alone.

In addition, Patent No. 10-0694306 And the frame of the rectangular cylinder mounted to the lower surface of the vehicle body; Entering into and out of the frame, the link fixing arm is installed on both sides long, the lifting device is installed on the upper side of the vertical cylinder of the hydraulic cylinder is transferred to the cam of the cam shaft through a wire rope to convert the rotation movement, A lift body having one end hinged to the cam of the camshaft and having an "X" shaped link which is folded up or down according to the operation of the lifting device; A platform connected to the link of the lift body and lifted up and down between the vehicle body and the floor by the link; The present invention provides a wheelchair lift for a vehicle, comprising: an antistatic device for controlling the operation of the elevating device.

The wheelchair lift is configured to guide the lift body vertically to the entrance of the vehicle when the lift body descends to the ground and the wheelchair is seated on the upper portion, and the lift body seated on the wheelchair automatically moves to the entrance of the vehicle. Disabled people who rely on wheelchairs can freely get on and off alone without any help.

However, the wheelchair lift is effective for a vehicle in which the entrance of the vehicle is formed in the same stage, but has a disadvantage that it cannot be applied to a general bus in which a hatch is formed in the form of a staircase.

That is, the elevating device located on the floor of the floor of the bus slides to one side to lower the lift body to rest on the ground, and vertically ascends to the entrance height of the hatch while the wheelchair is positioned on the upper surface. Is formed as a staircase, the bottom part of the hatch entrance (the point where the staircase starts) and the top protruding width of the staircase are different, so that the lift main body and the top of the staircase even if the lift body rises vertically to the highest height of the hatch staircase There is a limit in the configuration that the separation distance between the wheelchair movement is impossible or unsafe.

Accordingly, the present invention has been made in order to solve the above problems, it can be installed in a general bus that forms a step-shaped hatch by moving to the inside hatchway along the rotation radius of the rotary link is connected to one side of the wheelchair seat The purpose is to provide a wheelchair lift.

In order to achieve the above object, the present invention provides a bus wheelchair lift configured to enter and exit from one side of a lower surface of a bus hatch, comprising: a plate-shaped plate having a wheelchair and guide parts having a predetermined height on both sides; A first rotary link having a predetermined length is provided at both sides of the plate, respectively, and one end of the corresponding first rotary link is connected to the support to support the lower side of the front side of the plate and is connected to the support. A second rotary link of a predetermined length coupled to the first rotary link so as to be rotatable, and coupled to both guide portions of the plate to be rotatable and provided in parallel with the first rotary link; A first driven gear fixedly connected to the other end of the first rotary link; A second driven gear fixedly connected to the other end of the second rotary link; A driving gear that is engaged between the first driven gear and the second driven gear to rotate the first driven gear and the second driven gear in the same direction; And a guide frame including a first driven gear, a second driven gear, and a drive gear positioned to the one side, and provided at both sides to slide the lower surface of the bus hatch. It is a wheelchair lift.

In addition, a bus wheelchair lift configured to enter and exit from one side of the lower surface of the bus hatch, comprising: a plate-shaped plate in which a wheelchair is boarded and guide parts of a predetermined height are provided at both sides; A first rotary link having a predetermined length is provided at both sides of the plate, respectively, and one end of the corresponding first rotary link is connected to the support to support the lower side of the front side of the plate and is connected to the support. A second rotary link of a predetermined length coupled to the first rotary link so as to rotate and having one side coupled to both guide portions of the plate to be rotatable and provided in parallel with the first rotary link; A connection link having one side fixed to another end of the second rotary link; A hydraulic cylinder connected to the other end of the link link to rotate the link link; It includes a connecting link and a hydraulic cylinder located in one side to the inside, the guide frame is provided on both sides so as to slide the lower surface of the bus hatch; is a wheelchair wheelchair for a bus, characterized in that consisting of.

Through the present invention as described above, the plate can be moved downward or upward to facilitate the seating of the wheelchair without restriction on the height of the hatch, and the disabled person using the wheelchair while maintaining the horizontal state stably while the plate is moved to the bus. You can ride safely.

In addition, since it is particularly useful to be installed in a general bus forming a stairway hatch as well as a low-floor bus and a special vehicle for the disabled, it is possible to obtain a wide range of applications, thereby improving the use efficiency and convenience.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic plan view of a bus wheelchair lift 1 according to an embodiment of the present invention installed so as to enter and exit from a bottom portion of a bus floor 2 where a hatch is formed, and FIG. The lift 1 is a normal state in which the bottom part of the floor 2 is settled, and FIG. 1B shows a state in which the wheelchair lift 1 moves to one side of the hatch in order to board the wheelchair on the bus.

FIG. 2 is a schematic side view for showing an internal coupling relationship of the bus wheelchair lift 1, and FIG. 3 is a perspective view of a plate 10 configured to seat a wheelchair in the bus wheelchair lift 1. will be.

1 to 3, the bus wheelchair lift 1 according to a preferred embodiment of the present invention constitutes a plate 10 of a square plate on which a wheelchair is to be mounted, and the front part of which the wheelchair is to be wheeled In order to facilitate the riding of the wheelchair to move in rotation to form a slope of a predetermined length, on the seating surface of the wheelchair is configured to be level with the ground.

Both side surfaces of the plate 10 form a guide portion 11 that bends vertically to guide the prevention of detachment of the seated wheelchair, and the guide portion 11 is located at a position near the inclined front portion outside the guide portion 11. In the embodiment of the present invention shown in the embodiment of the present invention, the second fastening hole 22 formed on the upper side to form a triangular shape, the guide part ( 11) to match the fastening hole formed in the same size on the side, and the first fastening hole 21 formed on the lower side is configured to be separated to the lower side of the guide portion (11).

Since the connecting member 20 is provided on both sides of the plate 10, the first fastening holes 21 formed in the respective connecting members 20 face each other on the lower surface of the plate 10. It is to be connected to the support 30 between the first fastening hole (21).

In this case, the support 30 has a predetermined length through which the two end fastening holes 21 slightly correspond to each other and slightly protrudes, and is connected to the first fastening holes 21 through the support ( It is preferred that 30 be configured to support the bottom surface of the plate 10.

One end portion of the first rotary link 41 is fastened to both ends of the support 30 connected to the first fastening hole 21, and the first rotary link 41 is fastened to the support 30. It is configured to be able to rotate around the end portion.

In addition, the second fastening hole 22 of the connection member 20 is fixed arm 23 of a predetermined length for fixing so as to integrate the guide portion 11 of the plate 10 and the connection member 20, respectively. Insert and fasten the end of the second rotary link 42 to the fixed arm 23 slightly protruded outwardly.

Therefore, as shown in FIGS. 1 and 2, the coupling positions of the first rotary link 41 and the second rotary link 42 do not overlap, and the second rotary link 42 is connected to the first rotary link 41. Compared to the guide portion 11 of the plate 10 and located in the upper side than the) there is no restriction when rotating, the first rotary link 41 and the second rotary link 42 can always be kept in parallel state Make sure

The other ends of the first rotary link 41 and the second rotary link 42 are fixedly connected to the first driven gear 51 and the second driven gear 52 having sprockets 51a and 52a formed on one side, respectively. .

Accordingly, the rotary links 41 and 42 are fixedly connected to the gear shafts of the driven gears 51 and 52 so that the gear shafts are integrally rotated as the gear shafts rotate. The driven gears 51 and 52 Between the first sprocket 51a formed on the first driven gear 51 and the second sprocket 52a formed on the second driven gear 52 to drive the first sprocket 51a and the second sprocket ( 52a) to have a drive gear 60 configured to engage at the same time.

In the illustrated embodiment of the present invention, the second driven gear 52 is positioned at a predetermined distance to the rear surface of the first driven gear 51, and the driving gear 60 is one side of the first driven gear 51. And the first sprocket 51a of the first driven gear 51 and the second sprocket 52a of the second driven gear 52 are positioned on one lower surface of the second driven gear 52. 60) at the same time.

Here, although the driving gear 60 coupled with the driven gears 51 and 52 may be directly connected to a mechanical device such as a motor, the driving gear 60 may be driven, but the lift device is mounted on one side of the hatch to seat the wheelchair on the plate 10. When moving to the drive gear 60 is exposed to the outside of one side of the hatch high risk of failure of the mechanical device, the configuration may be difficult.

Thus, in the present invention, the main gear 70 paired with the drive gear 60 is located at the rear side without directly driving the drive gear 60.

A chain sprocket is formed on the drive gear 60 and the main gear 70 spaced apart from each other to fasten the drive gear 60 and the main gear 70 with a chain belt 80, and the main gear 70. As the main gear 70 is directly rotated by connecting a driving device to transmit power to the drive gear 60, the drive gear 60 is rotated in the same manner by the rotational movement of the connected chain belt 80.

Therefore, as the drive gear 60 rotates, the first driven gear 51 and the second driven gear 52 which are fastened to be engaged with the outer circumferential surface are also rotated together, and the wheelchair lift 1 shown in FIG. In the side view, when the main gear 70 and the drive gear 60 rotate in the clockwise direction, the first driven gear 51 and the second driven gear 52 rotate counterclockwise to rotate the first driven gear. The rotary links 41 and 42 fixedly connected to the 51 and the second driven gear 52 rotate downward about the gear shaft connected to the driven gears 51 and 52.

On the contrary, when the main gear 70 and the drive gear 60 rotate in the counterclockwise direction, the first driven gear 51 and the second driven gear 52 rotate in the clockwise direction so that the fixedly connected rotary link ( 41, 42) rotate upward.

On the other end of the rotary link (41, 42) moving downward or upward in accordance with the operation principle as described above, the plate 10 is grounded because the connection member 20 and the plate 10 are fastened to be rotatable. Lowering to allow the wheelchair to be seated, and the rotary links 41 and 42 rotate upward about the driven gears 51 and 52 to raise the plate 10 to guide the wheelchair to the hatch. It is configured to be.

The above configuration includes the driven gears 51 and 52, the drive gear 60, and the main gear 70 provided on one side of the bus floor to be smoothly inserted into and exited from one side of the hatch. Guide frames 90 corresponding to both sides are formed to slide, and the guide frame 90 is connected to the link frame 100 at the rear surface of the plate 10.

The guide frame connected to the link frame 100 as the length of the hydraulic cylinder 110 is extended or shortened by connecting the hydraulic cylinder 110 fixed at one side of the lower surface of the bus floor to the link frame 100. The gear device and the plate 10 included in the guide frame 90 and 90 are integrally moved to enter and exit to one side of the bus hatch.

In the incoming and outgoing movement process, the side of the guide frame 90 is provided with a plurality of rollers 91 to facilitate the sliding movement of the guide frame 90 according to the operation of the hydraulic cylinder 110 Easy entry and exit

According to the present invention configured as described above, the length of the plate 10 and the hydraulic cylinder 110 combined in the driving state of the bus as shown in FIG. 1A is smaller than the length of the bus width as shown in FIG. 1A. Preferably configured.

3 illustrates a safety bar 12 standing up to one side of both guide parts 11 in the configuration perspective view of the plate 10, wherein the safety bar 12 is used by a disabled person and an elderly person using a wheelchair. It is provided as a support means for facilitating the seating on the upper surface of the (10) and to prevent the fall and the center due to the shaking during the movement of the plate 10, the one side of the guide portion (11) It is configured to be foldable by pivoting to the top surface.

Therefore, in the case of maintaining the folded state on the upper surface of the plate 10 in general, when operating the lift to seat the wheelchair, as shown in the form of the safety bar 12 is standing up and the convenience of wheelchair movement Increase safety

The safety bar 12 is preferably configured in an automatic manner to stand or folded with the operation of the plate 10, but can be simply configured to enable manual operation via an external button or binding device, Figure 3 Except for the rest of the drawings, the safety bar 12 is not shown in the folded state to the upper surface of the plate 10.

Figure 4 is a sequential side view showing the order in which the bus wheelchair lift (1) of the present invention configured as described above is installed in a bus provided with a hatch in the form of a staircase to operate a wheelchair, the operation relationship In order to clarify, the hydraulic cylinder 110 and the roller 91, etc. are omitted and schematically illustrated, and the main point is that the plate 10 is moved through a connection relationship between the gear and the link.

In order to ride a disabled person using a wheelchair on the bus in a state where the wheelchair lift 1 is located on the lower surface of the bus hatch as shown in FIG. 4A, the hydraulic cylinder 110 connected to the rear side of the link frame 100 is first operated. As the hydraulic cylinder 110 is extended, the link frame 100 is pushed forward.

The link frame 100 has a guide frame 90 connected to both sides, and the guide frame 90 includes gear devices associated with the rotary links 41 and 42 to protrude the plate 10 to the outside. Accordingly, the wheelchair lift 1 is horizontally advanced as shown in FIG. 4B and is moved out of one side of the hatch.

At this time, the plurality of rollers 91 formed to the outside of the guide frame 90 to facilitate the sliding movement of the wheelchair lift.

When the horizontal movement of the plate 10 to one side of the bus hatch is completed, the main gear 70 is rotated clockwise based on the side view shown in FIG. 4. Since the main gear 70 maintains a state in which the main gear 70 is coupled to the drive gear 60 and the chain belt 80, the drive gear 60 also rotates in the clockwise direction as the main gear 70.

One side of the drive gear 60 is coupled to the outer peripheral surface of the first driven gear 51 and the second driven gear 52 having a sprocket formed thereon, so that the first driven gear rotates clockwise. The 51 and the second driven gear 52 rotate in the counterclockwise direction, and the first rotary link 41 and the second rotary link 42 connected to the driven gears 51 and 52 respectively are the driven gears. It rotates downward according to the rotation direction of (51, 52).

Therefore, as shown in FIG. 4C, the plate 10 fastened to the ends of the rotary links 41 and 42 is positioned on the ground, and the wheelchair 10 can be easily seated on the plate 10.

When the wheelchair is seated on the upper surface of the plate 10, the main gear 70 is driven to rotate in the counterclockwise direction so that the drive gear 60 that rotates in the same manner as the main gear 70 is the driven gear ( 51 and 52 are rotated clockwise.

As shown in FIG. 4D, the rotary links 41 and 42 rotate upward to raise the plate 10 according to the rotational direction of the driven gears 51 and 52, which correspond to both sides of the plate 10. The support 30 which connects the first rotary link 41 to be supported by the bottom surface of one side of the plate 10, the second rotary link 42 is connected to both sides of the plate 10 as the plate ( 10) is raised while forming a rotation radius by the length of the rotary link (41, 42), while the wheelchair is kept horizontal with the ground during the downward or upward movement through a plurality of rotary links (41, 42) connected to both sides Make sure you move safely.

Figure 4e shows a state in which the plate 10 of the wheelchair lift 1 is seated on the upper end of the hatch through the above process, the hatch provided in the form of a staircase as shown in the first and last top of the stairs The position of is formed differently.

Therefore, the conventional wheelchair lift is not available in the general bus is provided with a step-shaped hatch because the plate is configured to move only vertically up and down, in the present invention, one side of the plate 10 to the rotary links (41, 42) It is designed to be rotated while connecting and maintaining horizontality so that it can be moved up and down easily while moving up to the top of the stairway.

The embodiment described above is configured in such a way that a plurality of sprockets are formed gear gears for rotating the rotary links 41, 42 of the plate 10, Figure 5 is implemented in a more convenient manner instead of the gear devices Another embodiment of the present invention that can be shown is a schematic side view.

Therefore, the configuration and coupling of the plate 10 and the rotary links 41 and 42 are the same as in the above-described embodiment, but the end of the second rotary link 42 has a predetermined length instead of the second driven gear. The connection link 120 is fixedly connected to maintain a constant angle with the second rotary link (42).

In addition, the end of the first rotary link 41 is coupled to be rotatable to the guide frame 90 without the need to form a first driven gear, and the other end of the connection link 120 is the connection link 120 The driving device for rotating the drive is connected, it is preferable that the driving device is composed of a hydraulic cylinder, in order to prevent confusion with the hydraulic cylinder 110 connected to the rear of the link frame 100 in the previous embodiment connection link 120 ) Will be described below by distinguishing the second hydraulic cylinder (130).

Referring to the operating principle of the present invention configured as described above as shown schematically, Figure 5a shows a state in which the wheelchair lift on the lower surface of the bus hatch is moved to the outside of one side of the hatch to ride a disabled person using a wheelchair on the bus. As illustrated, the second rotary link 42 and the second hydraulic cylinder 130 are coupled to each other by a connection link 120 connecting a predetermined slope, and the other end of the second hydraulic cylinder 130 is guide frame 90 ) Tighten internally.

In order to allow the seat 10 to descend to the ground to allow the seating of the wheelchair, the second hydraulic cylinder 130 is operated to draw the cylinder rod 131 into the interior thereof, thereby being connected to the end of the cylinder rod 131. As the end of the connecting link 120 moves along the cylinder rod 131, the connecting link 120 rotates in a counterclockwise direction, and at the same time, the second hydraulic cylinder 130 is connected to the connecting link. It rotates finely clockwise by the rotational movement of 120.

At this time, the plate which is linked with the second rotary link 42 while the second rotary link 42 is connected to the other end of the connecting link 120 by forming a predetermined slope (downclockwise direction) is rotated ( 10) is mounted on the ground to maintain the state as shown in Figure 5b.

When the wheelchair is seated on the plate 10, as shown in FIGS. 5C to 5D, the connecting link 120 is rotated clockwise while advancing the cylinder rod 131 of the second hydraulic cylinder 130 to the outside. By doing so, the plate 10 can be smoothly moved to the bus hatch formed in the step shape.

What has been described above is only one embodiment according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the following claims, the present invention belongs without departing from the gist of the present invention. Anyone skilled in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

1 is a schematic plan view of a wheelchair lift for a bus according to an embodiment of the present invention;

2 is a schematic side view of a wheelchair lift for a bus according to an embodiment of the present invention.

3 is a perspective view of a plate according to an embodiment of the present invention.

Figure 4 is a side view of a sequential operation state of the wheelchair lift for bus according to an embodiment of the present invention.

Figure 5 is a side view of a sequential operation state of the wheelchair lift for bus according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10. Plate 11. Guide part 12. Safety bar

20. Connecting member 30. Support

41. First Rotary Link 42. Second Rotary Link

51. First driven gear 52. Second driven gear

60. Drive Gear 70. Main Gear

80. Chain belt

90. Guide frame 91. Roller

100. Link frame 110. Hydraulic cylinder

120. Links

130. 2nd hydraulic cylinder 131. Cylinder rod

Claims (8)

In the wheelchair lift for bus is configured to enter and exit from the lower surface of the bus hatch, A plate-shaped plate in which a wheelchair is mounted and guide parts having a predetermined height are provided at both sides; A first rotary link having a predetermined length is provided at both sides of the plate, respectively, and one end of the corresponding first rotary link is connected to the support to support the lower side of the front side of the plate and is connected to the support. Fastening so that the first rotary link can rotate, A second rotary link of a predetermined length coupled to the guides on both sides of the plate to be rotatable and provided in parallel with the first rotary link; A first driven gear fixedly connected to the other end of the first rotary link; A second driven gear fixedly connected to the other end of the second rotary link; A driving gear that is engaged between the first driven gear and the second driven gear to rotate the first driven gear and the second driven gear in the same direction; A first wheelchair, a second driven gear, and a driving gear, the guide frame being provided on both sides to slide the lower surface of the bus hatch; lift. According to claim 1, wherein the first driven gear and the second driven gear is formed with a sprocket and the drive gear is simultaneously engaged with the sprockets of the first and second driven gears, the first driven as the drive gear rotates A wheelchair lift for a bus, characterized in that the gear and the second driven gear are configured to rotate in the same direction. According to claim 1 or 2, wherein the drive gear is provided with a main gear which is coupled to the drive gear and the chain belt inside the guide frame is configured to rotate the drive gear by the rotation of the main gear connected to the power unit. Wheelchair lift for buses. In the wheelchair lift for bus is configured to enter and exit from the lower surface of the bus hatch, A plate-shaped plate in which a wheelchair is mounted and guide parts having a predetermined height are provided at both sides; A first rotary link having a predetermined length is provided at both sides of the plate, respectively, and one end of the corresponding first rotary link is connected to the support to support the lower side of the front side of the plate and is connected to the support. Fastening so that the first rotary link can rotate, A second rotary link having a predetermined length, the one side of which is coupled to both side guide portions of the plate and is rotatable and provided in parallel with the first rotary link; A connection link having one side fixed to another end of the second rotary link; A driving device connected to the other end of the connection link to rotate the connection link; And a guide frame provided at both sides to include a connection link and a driving device positioned to the one side and slidingly move a lower surface of the bus hatch. The wheelchair lift for a bus according to claim 1 or 4, wherein the guide frame is provided with a roller that facilitates sliding movement. The wheelchair lift for a bus according to claim 1 or 4, wherein the plate has a safety bar configured to be able to rotate vertically in a state in which an end portion is folded to the plate upper surface adjacent to the guide part. The wheelchair lift for a bus according to claim 1 or 4, further comprising a link frame connecting the guide frame to the rear surface of the plate. The wheelchair lift for a bus according to claim 7, wherein the link frame is connected to a hydraulic cylinder fixed to a lower surface of the bus so that the link frame is input and output to one side of the hatch according to the driving of the hydraulic cylinder.

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