KR100454007B1 - Lift apparatus for wheel chair - Google Patents

Abstract

The physically disabled person who cannot use the stairs can be safely lifted to the ground by riding on a platform that is lifted along the guide rail installed on one side of the stairs.The guide rail is driven by a wire inserted into the guide rail by driving a driving motor. The body and the platform running along, the platform is mounted foldable about the body by the operation of the drive means and the inlet and outlet side inclined plate for guiding the wheelchair to get on and off, foldably supported by the rod interlocking in accordance with the rotation of the rotation piece, the body Safety protection bar which guides to prevent departure of the person with a disability from the platform by rotating when driving the drive motor for prevention of separation installed on the vehicle, and folding the platform to the body, folding the platform inclination plate, rotating the safety protection bar and lifting the platform. Provides an operation control panel controlled by the corresponding button operation.

Therefore, the operation of the lift device for elevating the handicapped person on the platform can be operated by the handicapped person by themselves, thus eliminating the need for a separate companion and providing the user with convenience, and preventing the person from the platform from being lifted. do.

Description

Lift apparatus for wheel chair

The present invention relates to a wheelchair lift device that allows a disabled person who cannot use the stairs to safely climb on the ground by boarding a platform that is lifted along a plurality of guide rails installed on one side of the stairs.

More specifically, the physically handicapped person using a wheelchair can be folded the platform to use the lift, the folding of the inclined plate to get on and off the wheelchair to the platform, and the driving to fold the safety protective bar to prevent the person from the platform from being lifted. The present invention relates to a wheelchair lift device that can be automatically lifted and secured along a guide rail by controlling a button automatically.

In general, the subway stairs without an elevator are not provided with a passage for the disabled so that a wheelchair can be used, so when a disabled person using a wheelchair goes up and down the stairs, a guardian must be accompanied at all times. If a guardian misses a wheelchair or slips when climbing a staircase, there is a danger that the disabled may cause a serious safety injury.

Accordingly, in view of the above-described problems, the guide rails are installed parallel to the one side of the stairs, spaced up and down in parallel, and the platform for wheelchairs is installed to be able to fold along the guide rails so that the wheelchairs for the disabled can be platformed. A lift device that can be mounted on and lifted up is used.

However, in the case of lifting the disabled using such a lift device, a companion is required to mount the wheelchair on which the disabled rides on the platform, and the disabled person who rides on the platform prevents the disabled from escaping from the platform when following the guide rail. There is a problem that can cause a safety accident is not provided with a safety device for.

Accordingly, an object of the present invention is to provide a wheelchair lift device for the physically handicapped person to operate the lift device for the person with a disability to ride on the platform to be lifted along the guide rails by themselves, so that a separate companion is unnecessary during the lift. will be.

Another object of the present invention is to provide a wheelchair lift device to ensure the safety by a safety device that prevents the departure of the disabled person from the platform when the platform boarding along the guide rails.

Still another object of the present invention is to fold the platform, fold the platform inclined plate, and operate the button while folding the safety protective bar to prevent the person from the platform from being lifted and lifted on the ground and the platform. It is to provide a wheelchair lift device that can be automatically controlled by the user to provide convenience.

1 is a view schematically showing an installation state of a wheelchair lift apparatus according to an embodiment of the present invention;

Figure 2 is a view of the initial state folded platform relative to the body of the present invention,

Figure 3 is an exploded perspective view of the main portion of the drive unit for folding the platform of the present invention,

4 is a cross-sectional view of FIG.

5 is a perspective view of the platform unfolded from the body of the present invention,

6 is a perspective view showing an initial state in which the safety protection bar is in close contact with the body as a drive unit for rotating the safety protection bar of the present invention;

7 is a side view showing a neutral state in which the safety protection bar of the present invention rotates in the horizontal direction with respect to the ground;

8 is a side view showing a state in which the safety protection bar of the present invention rotates 180 degrees from the initial state,

9 is a front view of the platform of the present invention deployed from the body,

10 (a, b) is a state of use of the drive unit for folding the inclined plate of the platform of the present invention,

11 is a state diagram used in the wire tension control unit of the present invention,

12 is a flowchart showing a method of using the wheelchair lift device of the present invention;

Figure 13 is a schematic view of the drive unit when folding the platform of the present invention with respect to the body,

14 is a schematic view of the drive unit when the platform of the present invention is unfolded with respect to the body;

15 is a schematic view of a drive unit for driving a wire for elevating a platform of the present invention.

* Explanation of symbols used in the main part of the drawing *

One; Drive motors 2,3 for driving; Guide rail

4,5; Wire 10; Body

11,12; Ramp plates 14,15; road

20; Platform 21,22; Deviation Drive Motor

23,24; Rack gear 25,26; Pinion gear

27,27a; Drive pieces 28, 28a; Driven shaft

29,31,32; Limit switch 30, 30a; Safety bar

40; Operating panel 41; Drive motor for inclined plate folding

42; First pivot 43; 2nd East

44,45; Guide grooves 46,47; link

48,49; Elastic members 51, 52; Limit switch

An object of the present invention described above is a wheelchair lift device that allows a disabled person who cannot use a stair to ride on a wheelchair to get on and off a platform lifted along a guide rail, wherein the drive rail driving device drives the guide rail to the guide rail. The body running along the guide rail by the inserted wire, and the inlet side inclination plate for guiding the wheelchair to get on and off by operating the driving means, can be folded by the rod which interlocks according to the rotation of the rotation piece. Securely supported platform, safety protection bar which guides to prevent the departure of the disabled from the platform by rotating when driving the drive motor for prevention of separation installed on the body, folding the platform to the body, folding the platform slope plate, safety protection bar To control the turning and lifting of the platform I is achieved by a wheelchair-lift device comprising: an operating panel to provide.

According to a preferred embodiment, the above-mentioned driving means includes a driving motor for folding the platform driving in the forward and reverse directions, a lifting rod coupled to the rotating shaft of the driving motor to move up and down by the rotating shaft when driving the driving motor, and one end of the lifting rod. It is fixed to the connector fixed integrally and the other end is fixed to the body, when the drive motor is driven, the folding rod for folding the platform with respect to the body according to the lifting and lowering of the lifting rod, and the rod part is fixed to the connector to close the platform against the body It is provided with a buffer member that is to act as a buffer.

According to a preferred embodiment, the above-mentioned safety protection bar is fixed to the body, a pair of departure-avoidance driving motor to be driven independently, and when driving the departure-avoidance driving motor and linear movement in the vertical direction within a predetermined distance in the upper one side A drive shaft having a rack gear is formed, and a driven shaft which is fixed to a pinion gear meshing with the rack gear to rotate the safety protection bar within a predetermined angle range when driving the drive motor for departure prevention.

According to a preferred embodiment, by detecting the movement of the above-mentioned driving piece in the up and down direction, the safety protection bar is folded into the body, the position to rotate 180 degrees relative to the initial position to get on the platform, the boarding and lifting It is equipped with a limit switch to stop the drive motor for departure prevention when rotating in a set position to rotate horizontally with respect to the platform.

According to a preferred embodiment, the above-described rotating piece includes a drive motor for inclined plate folding and a first rotating piece that rotates in left and right directions along a rotation axis of the inclined plate folding drive motor, and the first rotating piece. The second rotating piece is formed integrally and rotates in the left and right directions when folding the inclined plate, one end is fixed to the body and the other end is rotatably connected to the upper end of the rod and symmetrically formed on the left and right sides of the first rotating piece to fold the inclined plate When the driving motor is driven, the link is formed with a guide groove for guiding the rotation of the second rotation piece, and the link is fixed to the body to expand the inlet side inclined plate to the bottom when driving the drive motor for folding the inclined plate. An elastic member is installed so as to be elastically biased in a state.

According to a preferred embodiment, the limit switch which detects the rotation of the above-mentioned first rotating piece in the left-right direction and stops the driving motor for folding the inclined plate when the inclined plate is deployed to contact the initial state or the bottom surface folded at a predetermined angle with respect to the platform It is provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art to which the present invention pertains can easily carry out the present invention. It does not mean that the technical spirit and scope are limited.

As shown in Figures 1 to 15, the staircase is not available in the basement, such as buildings or subways without an elevator is installed so that disabled people in wheelchairs can be boarded and lifted on the platform lifting along the guide rail Applies to wheelchair lifts.

Accordingly, the wheelchair lift apparatus according to the embodiment of the present invention, as shown in Figure 5 to 10, the wire 4 inserted in the guide rails (2, 3) installed in parallel to drive the driving motor 1 for driving 5, the body 10 traveling along the guide rails (2, 3) by the drive means, and is mounted foldably about the body 10 by the operation of the drive means for guiding the wheelchair to board the person with disabilities to get on and off A platform 20 on which the entrance and exit side inclined plates 11 and 12 are foldably supported by the rods 14 and 15 interlocked in accordance with the rotation of the pivoting piece 13, and the drive for preventing separation mounted on the body 10. When the motors 21 and 22 are driven, the safety protection bars 30 and 30a having a “??” shape guide to prevent departure of the disabled from the platform 20 and the platform 10 with respect to the body 10. Folding of the 20, folding of the inlet / outlet side inclination plates 11 and 12 of the platform 20, rotation of the safety protection bars 30 and 30a, and platform 2 And an operation operation panel 40 for controlling the elevating drive of 0) by button operation.

As described above with reference to FIGS. 3 and 4, 13, and 14, the driving means is coupled to a platform folding drive motor 60 that rotates in a forward and reverse direction, and a rotation shaft 62 of the drive motor 60. And the elevating rod 63 which is moved up and down by the rotation shaft 62 when the driving motor 60 is driven, and one end thereof is fixed to the connector 64 integrally fixed to the elevating rod 63, and the other end thereof is the body 10. The hinge rod 61 is rotatably fixed to the folding rod 65 to fold the platform 20 relative to the body 10 according to the lifting and lowering of the lifting rod 63 when the driving motor 60 is driven. In addition, the rod part 66 is fixed to the connector 64, and has a shock absorbing member 67, which serves as a buffer when the platform 20 is closed with respect to the body 10.

The safety protection bars 30 and 30a described above, as shown in FIGS. 5 to 8, are fixed to the body 10 and have a pair of separation prevention driving motors 21 and 22 to drive independently, and separation. When driving the driving motors (21, 22) for prevention, the linear motion in the vertical direction within a predetermined distance and the drive piece (27) having a rack gear (23, 24) formed on one side of the upper gear and the rack gear (23, 24) The driven shaft 28 is fixed to the pinion gears 25 and 26 so as to rotate the safety protection bars 30 and 30a within a predetermined angle range when driving the drive motors 21 and 22 for preventing separation.

That is, as shown in Figure 6, the above-described platform 20 is the initial state folded with respect to the body 10, it is that the above-mentioned driving piece 27 is moved to the upper end by driving the drive motor 21 As the limit switch 29 detects and stops the driving motor 21, the safety protection bar 30 shows the initial position of the body 10. At this time, although not shown, as the driving piece (27a) is driven when the above-described drive motor 22, the safety protection bar (30a) of course maintains the initial state folded in the body (10).

As shown in FIG. 8, the physically handicapped person unfolds the platform 20 with respect to the body 10 to get on and off the platform 20. The driving piece 27 is driven by the driving of the driving motor 21 described above. ), The limit switch 32 detects the movement of the lower end and stops the driving motor 21 so that the safety protection bar 30 rotates 180 degrees upward with respect to the initial position folded in the body 10. Location.

As illustrated in FIG. 7, the limit switch 31 may be rotated horizontally with respect to the platform 20 to prevent the physically handicapped from escaping from the platform 20 during the ascending and descending of the platform 20 described above. Indicates the set position where the drive motor 21 is stopped by detecting.

As shown in FIGS. 9 and 10 (a, b), the above-described pivoting piece 13 includes a drive motor 41 for inclined plate folding and a drive motor for inclined plate folding (shown in FIGS. 41 is integrally formed to intersect the first rotating piece 42 and the first rotating piece 42 to rotate in the left and right directions along the rotation axis 41a of the rotating shaft 41a, and rotates in the left and right directions when the inclined plates 11 and 12 are folded. The second rotating piece 43 and one end is fixed to the body 10 and the other end is rotatably connected to the upper end of the rods (14, 15) and formed symmetrically on the left and right sides of the first rotating piece (42) Links 46 and 47 formed with guide grooves 44 and 45 for guiding the rotation of the second pivoting piece 43 when the drive motor 41 is driven to fold 11 and 12, and links 46 and 47. ) Is installed in the body 10 to drive the inclined plate folding drive motor 41, the inlet side inclined plate 11 to the bottom surface, the outlet side inclined plate 12 is installed to elastically bias the initial state folded Elastic members 48 and 49 are provided.

As shown in Figs. 5, 9 and 10, the inclined plate (11, 12) is the platform by detecting that the first rotating piece 42 is rotated in the left and right directions by the driving of the drive motor 41 for the inclined plate folding described above. Limit switches 51, 52, and 53 are provided to stop the drive motor 41 for inclined plate folding when deployed to contact the initial state or the bottom surface folded at a predetermined angle with respect to (20).

Hereinafter, a method of using the wheelchair lift apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

As illustrated in FIG. 1, when a person with a physical disability climbs into a wheelchair and wants to climb to the corresponding floor of a building where an elevator is not installed, or to exit from the basement such as a subway to the ground, It can be safely lifted by boarding the platform 20 running along the pair of guide rails (2,3) described above installed in parallel.

As shown in Figures 2 to 4 and 12, as the disabled person in a wheelchair to operate the corresponding button of the driving control panel 40a installed on the side wall of the above-mentioned platform 20, the above-mentioned platform section Lifting rod (63) coupled to the rotating shaft (62) that rotates when driving the driving motor 60 in the forward direction is moved in the axial direction, fixed to the connector (64) integrally fixed to the lifting rod (63). As the fold rod 65 moves in the axial direction, the platform 20 pivots about the hinge portion 61 fixed to the body 10 and is developed from the above-described body 10 to the bottom surface. Unfold in the horizontal direction (see S10).

On the other hand, as shown in Figures 5 and 8, the drive for preventing the separation of the above-described safety protection bar (30, 30a) mounted on the body 10 due to the operation of the corresponding button of the above-described operation operation panel (40, 40a). As the motors 21 and 22 are rotated forward, the drive pieces 27 and 27a fixed to the drive motors 21 and 22 are moved downward, so that the racks formed on the side surfaces of the drive pieces 27 and 27a are moved. The gears 23 and 24 move downward.

Accordingly, as shown in FIG. 8, driven shafts 28 and 28a fixed to pinion gears 25 and 26 meshing with rack gears 23 and 24 are rotated, so that driven shafts 28 and 28a are rotated. The above-described safety protection bar (30, 30a) is fixed to the upper portion rotates 180 degrees upward relative to the initial position with the central axis (see S20). At this time, by the detection of the limit switch (32,32a) is installed to detect the above-described drive piece (27, 27a) to move in the downward direction, the drive of the above-described separation prevention drive motor (21, 22) is stopped.

Meanwhile, as shown in FIGS. 9 and 10, the driving motor 41 for inclined plate folding mounted on the body 10 is driven by the corresponding button manipulation of the driving operation panel 40a described above. The first pivotal piece 41 rotatably fixed in the left and right directions along the rotating shaft 41a axially fixed to 41 is rotated in the right direction in the drawing. At this time, the rollers 53a and 54 rotatably fixed to both ends of the second pivoting piece 43 formed to intersect the first pivoting piece 41 according to the rotation of the first pivoting piece 41 are the links 46 and 47. It moves to the right side of the guide groove (44, 45) formed in.

At this time, as shown in Figure 10 (a), the inlet side inclined plate 11 of the platform 20 is expanded to the ground (see S30), the first formed to cross the first rotating piece 42 When the first rotating piece 42 is brought into contact with the limit switch 51 provided on the right side of the second rotating piece 43, the driving of the inclined plate folding drive motor 41 is stopped.

Therefore, the disabled person in a wheelchair can easily ride the platform 20 through the above-mentioned inclination plate 11 (see S40), and the entrance side inclination plate 11 of the above-described platform 20 after boarding is described above. In accordance with the driving of the drive motor 41 to maintain the initial state folded to a predetermined angle with respect to the platform 20 in the initial state it is possible to prevent the departure of the wheelchair wheel from the platform 20 (see S50) .

Next, as shown in Figs. 4, 5, and 8, the above-described separation prevention drive motors 21 and 22 are reversely rotated by the corresponding button operation of the above-described driving operation panel 40a to drive the driving pieces 27 and 27a. ) Is raised to the middle of the raised height, when the above-mentioned safety protection bar (30, 30a) is rotated about the upper end to the center axis to come down in the horizontal direction (see S60), the driving piece (27, 27a) The detection of the limit switches 31 and 31a for detecting the rising stops the drive of the separation preventing drive motors 21 and 22.

Therefore, as shown in FIG. 7, when the disabled mounted on the wheelchair and mounted on the platform 20 climbs upward along the guide rails 2 and 3 (see S70), the safety protection bar maintains the horizontal direction. By (30,30a) to prevent the disabled from being departed from the platform 20 can be safely climbed.

On the other hand, as shown in Figures 9 and 10, when the disabled person boarded on the platform 20 is to rise from the basement, such as the basement of the building or the subway to the ground and get off from the platform 20, The first rotational piece 41 fixed to the driving motor 41 is driven by driving the driving motor 41 for the inclination plate folding due to the operation of the corresponding button of the operation control panel 40a mounted on one body 10. In the figure, it moves to the left direction.

Rollers 53 and 54 rotatably fixed to both ends of the second pivoting piece 43 formed to intersect the first pivoting piece 41 according to the above-described rotation of the first pivoting piece 41 are links 46 and 47. ) To the left of the guide grooves (44, 45) formed in.

Accordingly, as shown in FIG. 10 (b), the aforementioned inclined plate 12 is unfolded toward the ground (see S80), in which the first rotating piece 42 is formed to intersect with the aforementioned first rotating piece 42. When the first pivot piece 42 is in contact with the limit switch 52 provided on the left side, the driving of the drive motor 41 for inclined plate folding is stopped.

On the other hand, due to the operation of the corresponding button of the operation control panel 40a mounted on the body 10 described above, the aforementioned drive-away driving motor 22 is driven in the forward direction to move the above-mentioned driving piece 27a downward. When the limit switch 32 is detected, the drive of the drive motor 22 is stopped.

At this time, as shown in Figure 5, the above-described safety protection bar (30a) by the driven shaft 28a fixed to the pinion gear 26 meshing with the rack gear 24 attached to the drive piece (27a) side By rotating 180 degrees upward relative to the initial position (see S90), a disabled person in a wheelchair can get off from the platform 20 through the inclined plate 12 (see S100).

As shown in FIG. 10, when the above-mentioned first rotation piece 42 moving left and right along the rotating shaft 41a by driving the above-described inclined plate folding drive motor 41 is moved in the drawing in the right direction. The above-described inclined plate folding drive motor 41 is stopped by detecting the limit switch 53 which detects the neutral position of the first rotating piece 42 described above.

Next, as shown in Figs. 5 and 6, by driving the above-mentioned separation prevention drive motors 21, 22 in the reverse direction to raise the aforementioned drive pieces (27, 27a) to the above-mentioned safety protection bar (30, 30a) ) Is rotated with the upper end as the central axis to move to the initial position on the body 10 (see S110), at which time the detection of the limit switch (29, 29a) to detect the rise of the driving piece (27, 27a) By this, the driving of the above-described separation preventing drive motors 21 and 22 is stopped.

Accordingly, as shown in FIGS. 2 to 4 and 13, when the driving motor 60 for folding the platform is driven in the reverse direction, the lifting rod 63 coupled to the rotating shaft 62 is axially moved. Since it is extended, the folding rod 65 fixed to the elevating rod 63 is extended in the axial direction so that the aforementioned platform 20 can be rotated to an initial position folded with respect to the body 10 (see S120).

On the other hand, as shown in Figure 11, it is possible to prevent the sag during use of the wire (4, 5) for elevating the above-described body 10 along the guide rail (2, 3). That is, the pulley 1b for driving the wires 4 and 5 on the rear surface of the bracket 1c on which the above-described driving drive motor 1 and the speed reducer 1a for reducing the rotational force of the driving motor 1 are mounted. While fixed integrally, the upper end of the above-described bracket (1c) is rotatably fixed to the fixed shaft (1d) to be able to adjust the tension of the above-described wire (4,5).

On the other hand, as shown in Figure 9, when the power supply is interrupted while using the above-described wheelchair lift device, the fastening member for integrally fixing and supporting the safety protection bar (30a) with respect to the above-described driven shaft (28a) ( By releasing the locked state of BT), the safety protection bar 30a can be freely rotated with respect to the above-described driven shaft 28a, so that the above-described safety protection bar 30a is manually operated to rotate in the vertical direction. After the platform 20 will be able to escape the physically disabled.

As mentioned above, according to a preferable embodiment, it has the following advantages.

The physically handicapped person using a wheelchair can be operated by the handicapped person by the handicapped person by operating on a platform lifted along a guide rail, thereby eliminating the need for a separate passenger.

In addition, the safety can be secured by a safety device that prevents the departure of the disabled person from the platform when the platform boarding and lifting along the guide rail.

In addition, the folding of the platform for boarding the disabled, the folding of the inclined plate for getting on and off the wheelchair, and the folding of the safety protection bar to prevent the departure of the disabled from the platform during the boarding on the ground and the platform It can be automatically controlled by the operation of the button in the user's convenience.

Claims (6)

In a wheelchair lift device that allows a disabled person, who cannot use the stairs, to board a wheelchair and get on and off a platform that is lifted along a guide rail: A body traveling along the guide rail by a wire inserted into the guide rail by a driving motor for driving; A platform foldably mounted to the body by driving means, the platform having an entrance and exit side inclination plate for guiding the wheelchair to get on and off and being foldably supported by a rod that interlocks with the rotation of the rotation piece; A safety protection bar which guides to prevent departure of the disabled from the platform by rotating when driving the drive motor for preventing the departure mounted to the body; And And a driving operation panel for controlling the folding of the platform, the folding of the inclined plate, the rotation of the safety protection bar, and the lifting and lowering of the platform by the operation of the corresponding button with respect to the body. According to claim 1, The safety protection bar; A pair of departure prevention driving motors fixed to the body to drive independently; A driving piece having a rack gear formed on one side of the upper part and linearly moving upward and downward within a predetermined distance when the driving motor for preventing the departure is driven; And And a driven shaft fixed to a pinion gear meshing with the rack gear to rotate the safety protection bar within a predetermined angle range when the drive motor for preventing the release is driven. According to claim 2, wherein the drive piece detects the movement in the vertical direction and the safety protective bar is folded in the body, the position to rotate in the direction of 180 degrees relative to the initial position to get on the platform, the boarding and lifting the platform Wheel lift device characterized in that it comprises a limit switch for stopping the drive motor for departure prevention when the step rotation of the set position to rotate horizontally with respect to the platform in order to. According to claim 1, The rotating piece; A drive motor for folding the inclined plate mounted on the body; A first rotating piece rotating in a left and right direction along a rotation axis of the drive motor for folding the inclined plate; A second rotating piece which is integrally formed to intersect the first rotating piece and rotates in the horizontal direction when the inclined plate is folded; A guide groove for guiding the rotation of the second pivot piece is formed when the driving motor is driven to fold the inclined plate, and one end is fixed to the body and the other end is pivotably connected to the rod top, and the left and right sides of the first pivot piece are A link symmetrically formed in the; And When the drive motor for the inclined plate folding drive the drive motor for inclined plate folding by mounting the link to the body, the inlet side inclined plate is provided toward the bottom surface, and the outlet side inclined plate is provided with an elastic member installed to elastically bias the initial state. Wheelchair Lift. The limit switch according to claim 1, wherein the limit switch for stopping the inclined plate folding drive motor when the first pivot piece is rotated in the left and right direction and stops the inclined plate folding drive motor when the inclined plate is deployed at a predetermined angle on an initial state or a bottom surface folded with respect to the platform. Wheelchair lift apparatus characterized in that it comprises a. According to claim 1, The drive means; A driving motor for folding the platform that rotates in the forward and reverse directions; A lifting rod coupled to the rotating shaft of the driving motor to move up and down by the rotating shaft when the driving motor is driven; A folding rod having one end fixed to a connector integrally fixed to the lifting rod and the other end fixed to the body, and folding the platform with respect to the body according to the lifting and lowering of the lifting rod when the driving motor is driven; And And a rod member fixed to the connector and having a shock absorbing member that buffers the platform against the body.