KR102271450B1 - Lift for disabled people - Google Patents

Abstract

The present invention relates to a wheelchair lift, in which a pair of guide grooves are formed at a predetermined distance on the front side, a support body on which a slide rail is installed on the side surface, a door is installed between first and second side walls, and a rear surface of the first side wall A lift body provided with a pair of transfer plates to correspond to the guide groove in the lift body is hinged on one side of the bottom surface of the lift body and a slide bar is provided on one side to come into contact with the slide rail and slide the first and second parts of the lift body. It includes a sloping bottom plate through which the passage of the side wall is opened and closed, and an elevating means installed on the support to elevate the lift body.

Description

Wheelchair lift {Lift for disabled people}

The present invention relates to a wheelchair lift, and more particularly, to a wheelchair lift in which an occupant enters one direction of the lift in a wheelchair and ascends and descends in the other direction.

BACKGROUND ART In general, a lift is a mechanical device used as a means of transport for transporting goods from a low place to a high place or from a high place to a low place, or for moving a person to a specific place.

These lifts are used in ski resorts and tourist destinations as means for transporting people, but they are used for special purposes. For example, it can be installed and used on a stage where there is a difference in height, such as a grandstand or a reading seat that wheelchair passengers can use. Unlike elevators that are permanently installed and used in buildings, etc., a lift used by wheelchair users refers to a facility that is temporarily installed in a place with a height difference and used by wheelchair users.

In the past, in Registered Utility Model 20-0176105 (Patent Document 1), wheelchair occupants do not have to carry out separate construction in a place with a difference in height, but use an inverter according to the position by detecting the lift speed of the lift body by an encoder. A vertical lifter capable of accelerating and decelerating the lifting speed is disclosed.

In addition, Patent Publication 10-2014-0055405 (Patent Document 2) discloses an elevator system for the disabled that provides ease and safety for a wheelchair user to board or get off the elevator by sensing the movement of the wheelchair wheels, and a method of operating an elevator car using the same. has been disclosed. In addition, registered patent 10-1655360 (Patent Document 3) discloses an elevator equipped with a convenient function for the disabled that secures a boarding space for the disabled and induces safe boarding through a simple structural improvement in the elevator.

In Patent Document 1, the doors 15 and 15' are located in front of the lift body 10 so that a wheelchair occupant boards the lift body 10 and there is no space to rotate inside. It is inconvenient to use because it has to come out in the rear direction of the wheelchair based on (15, 15'), and there is no safety means provided, so it is exposed to safety accidents that may occur when the lift body 10 is descending. There is this.

In Patent Document 2, a rotating plate 7 is provided on the floor surface of the elevator, so that the position of the wheelchair occupant can be switched in a direction in which the wheelchair occupant gets on and off the elevator. In Patent Document 3, the light emitting guide member 50 is provided on the floor surface of the elevator so that the wheelchair passenger can enter the wheelchair along the light emitting guide member 50 . These, Patent Documents 1 and 2 have a limitation in being applied as a simple lift to a place with a height difference because a certain space must be secured.

Registered Utility Model 20-0176105 (2000.01.13) Patent Publication 10-2014-0055405 (2014.05.09) Registered Patent 10-1655360 (2016.09.01)

A first object is to provide a wheelchair lift that allows a wheelchair occupant to enter in one direction of the lift and exit in the other direction after getting up and down.

And, a second object is to provide a lift for a wheelchair so that a wheelchair occupant can increase the convenience of use when boarding or getting off the lift.

And, a third object is to provide a wheelchair lift that can prevent safety accidents by stopping the lift when there are people or obstacles under the lift when descending or by stopping the lift from falling in an abnormal state.

In this embodiment, a pair of guide grooves are formed at a predetermined distance on the front surface, a support body having a slide rail installed on the side thereof, a door is installed between the first and second side walls, and the guide groove is located on the rear surface of the first side wall. Correspondingly, a lift body provided with a pair of transfer plates and a hinged connection to one side of the bottom surface of the lift body and a slide bar are provided on one side to slide in contact with the slide rail to open and close the passages of the first and second side walls A wheelchair lift, comprising an inclined bottom plate and an elevating means installed on the support to elevate and lower the lift body, so that the wheelchair enters the lift body through the inclined bottom plate and exits in the opposite direction after ascending and descending provides

The support body may be linked to the elevation height of the lift body to have a variable height structure.

The lift body may be configured such that the front end of the door is hinged and opened in a rotating state, and magnetic force is selectively supplied to the opposite end of the other end of the door to be fixed when ascending and descending and released when stopped.

The lift body may constitute a fixing means for fixing the wheelchair to the bottom plate.

The slide rail of the support includes an inclined rail portion formed at the front end portion and a horizontal rail portion extending to the inclined rail portion, and the slide bar of the inclined bottom plate has a fixed end fixed to one side of the inclined floor plate and a free end of the slide bar. It can be configured to be rotatably mounted to the front end of the roller.

In the inclined bottom plate, when the lift body is raised and lowered by the elevating means, when the roller part of the slide bar passes from the inclined rail part to the horizontal rail part, the passages of the first and second side walls are closed, and the slide bar The roller portion may have a structure that opens when passing from the horizontal rail portion to the inclined rail portion.

The inclined bottom plate is installed on the other side of the first and second sidewalls when the door is installed on one side of the first and second sidewalls, and is installed on the other side of the first and second sidewalls when the door is installed on both sides of the first and second sidewalls. It can be configured to be installed on the outside, respectively.

The elevating means includes a hydraulic stem that a rod part is connected to a horizontal support bar of the support to slide up and down, a pair of chain parts having one end connected to the housing of the hydraulic stem and the other end connected to the side surface of the transfer plate, and the It can be configured to include an actuator that operates the hydraulic stem. Here, the elevating means may be configured to elevate the elevating height of the lift body by a set height or to vary the set height through the control unit if necessary.

In addition, the present embodiment may further include a plurality of object detection units provided on the lower surface of the lift body to selectively stop the operation of the driving means by detecting a person or an obstacle when descending.

In addition, this embodiment may further include a fall prevention means for stopping the lift body from falling in an abnormal state. The fall prevention means includes a support bar elastically supported so as to be movable in the vertical direction through a bushing member and a compression spring on the side wall of the support, a link member having a fixed end connected to the support bar and a free end passing through the side wall; It may include a cam member connected to the free end of the link member and fixed while being in contact with the extended side wall of the support body when the link member rotates.

According to this embodiment, the wheelchair enters the lift body through the inclined bottom plate at the initial position where the lift is stopped, and allows the wheelchair to exit in the opposite direction of the lift body at the final position after elevating or lowering the patient, Passengers with disabilities can use it conveniently through simple operation.

In addition, the inclined floor plate and door are closed when the lift body goes up or down, and the inclined floor plate and the door open when the lift body stops, so that accidents that may occur while the occupant is on the lift can be prevented. have.

Moreover, it is possible to protect the occupants in an emergency state by stopping the fall of the lift through the fall prevention means in an abnormal state of the lift.

On the other hand, according to the present embodiment, it is possible to prevent a safety accident occurring around the lift by detecting the presence of a person or an obstacle under the lift through the object detection unit when the lift is descending and stopping the lift.

1 is a perspective view showing a lift for a wheelchair according to an embodiment of the present invention;
2A and 2B are diagrams showing the elevation state of a wheelchair lift according to an embodiment of the present invention;
3 is a configuration diagram showing the elevating means of the lift for a wheelchair according to an embodiment of the present invention;
4 is a block diagram showing a fall prevention means of a lift for a wheelchair according to an embodiment of the present invention;
5A and 5B are views showing the operation state of the acceptance preventing means of the lift for wheelchairs according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, and the present invention is not limited thereto, and the present invention is only defined by the scope of the claims to be described later. The embodiments to be described below may be modified in various forms without departing from the concept and scope of the present invention. Wherever possible, identical or similar parts are denoted by the same reference numerals in the drawings.

The terminology used below is for the purpose of referring to specific embodiments only, and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of “comprising” specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

Hereinafter, preferred examples and comparative examples of the present invention will be described. However, the following examples are only preferred examples of the present invention, and the present invention is not limited thereto.

1 is a perspective view illustrating a lift for a wheelchair according to an embodiment of the present invention, and FIGS. 2A and 2B are configuration views illustrating an elevating state of the lift for a wheelchair according to an embodiment of the present invention.

As shown in FIGS. 1 to 2B , the lift for a wheelchair according to an embodiment of the present invention includes a lift body 20 installed on one side of a support body 10 , and an inclined floor installed at the lower end of the side of the lift body 20 . It includes a plate 30, an object detection unit 40 installed on the lower bottom surface of the lift body 30, and an elevating means installed on the support body 10 to elevate the lift body 20. .

The wheelchair lift according to the present invention has a technical feature in that the wheelchair enters the lift body 30 through the inclined bottom plate 30 and exits in the opposite direction after ascending or descending.

The support body 10 has a pair of guide grooves 12 formed at regular intervals on its front side, a slide rail 14 is installed on its side in a vertical direction, and a pedestal 16 is installed at the bottom in a horizontal direction. installed. And, as shown in FIG. 3 , the support 10 is provided with a horizontal support bar 18 therein to be connected to the hydraulic stem 50 as the elevating means to be described later.

In the guide groove 12, a transfer plate 23 of the lift body 20, which will be described later, is inserted to slide. As shown in FIGS. 2A and 2B , the slide rail 14 is disposed along the longitudinal direction on the side surface of the support body 100 . The slide rail 14 includes an inclined rail portion 14a formed at a lower portion and a horizontal rail portion 14b extending in the horizontal direction from the inclined rail portion 14a. Here, the slide rail 14 functions to open and close the inclined bottom plate 30 through the slide bar 32 and the roller part 33 to be described later. The entire length of the slide rail 14 can be changed in consideration of the distance (elevation height) to which the lift body 20 is moved. On the other hand, when the inclined bottom plate 30 is installed on both sides of the lift body 20, the lift body It can also be installed on the side of (20), respectively.

In addition, the support body 10 can be manufactured in a structure in which the height of the lift body 20 can be varied in connection with the elevation height of the body 20 . For example, the upper portion of the support 10 is inserted into the lower portion and has a ball plunger coupling structure so that the height thereof can be varied by increasing the length upward if necessary.

On the other hand, the support body 10 can be configured so that the set elevation height of the lift body 20 can also be varied if necessary. Although not shown in the drawings, it is of course possible to increase or decrease the height based on the set elevation height of the lift body 20 through the control unit for controlling the elevation means.

The lift body 20 includes a first sidewall 23 extending in a vertical direction to one side of the bottom plate 21 , a second sidewall 24 extending in a vertical direction to the other side of the bottom plate 21 , and the and a door 27 installed between the first and second sidewalls 22 and 24 .

Here, the lift body 20 is a box-shaped upper part opened by the first and second side walls 22 and 24 and the door 27 forming the outer surface of the lift body 20 with respect to the bottom plate 21 . is structured. Of course, the lift body 20 may have a ceiling portion installed on the first and second side walls 22 and 24, if necessary.

The bottom plate 21 may be a criterion for determining the size of the lift body 20 . That is, when the horizontal and vertical sizes of the bottom plate 21 are determined when designing, the sizes of the first and second sidewalls 22 and 24 and the door 27 are determined. In addition, a plurality of object detection units 40 to be described later are provided under the bottom plate 21 .

As shown in FIG. 2B , the first side wall 22 has a pair of transfer plates 23 protruding outward at a predetermined interval on the outer surface thereof to slide into the guide groove 12 of the support body 10 , as shown in FIG. 2B . possibly linked. The second sidewall 24 is installed perpendicularly to a corner of the bottom plate 21 to face the first sidewall 22 . On the other hand, the inside of the first side wall 22 or the second side wall 24 is provided with a handle part 25 that a wheelchair passenger can hold and a lift operation part 26 that can be operated.

As shown in FIG. 1 , the door 27 has a hinge portion 28 formed at a corner of the second sidewall 24 so as to be able to open and close while rotating. Here, the door 27 has a structure in which the fixed end is connected to the hinge portion 28 of the second side wall 24 and is opened while the free end is rotated.

And, although not shown in the drawings, the free end of the door 27 is fixed to one end of the first side wall 22 by selectively supplying magnetic force therein. The door 27 may be configured such that magnetic force is supplied and fixed when the lift body 20 goes up and down through an electromagnet, and is released when the lift body 20 is stopped. This can be operated by the wheelchair passenger through the lift operation unit 26 . In addition, various types of locking means as well as electromagnets can be used to fix the free end of the door 27 , and the locking means can be configured to be automatically operated through the lift operation unit 26 .

On the other hand, although not shown in the drawing, the lift body 20 may constitute a wheelchair fixing means for fixing the wheelchair to the bottom plate 21 . For example, by using an electromagnet as a wheelchair fixing means, magnetic force is supplied when the lift body 20 moves so that the wheelchair does not flow, and magnetic force can be released when the lift body 20 stops. This can be configured so that the wheelchair passenger can selectively and easily operate it through the lift operation unit 26 .

As shown in FIGS. 2A and 2B , the inclined bottom plate 30 is rotatably installed on one side of the bottom plate 21 through a hinge part 32 . In addition, a slide bar 34 that slides in engagement with the slide rail 14 is provided on one side of the inclined bottom plate 30 . The slide bar (34) has a fixed end fixed to one side of the inclined bottom plate (30), and a roller part (34a) is rotatably mounted at the free end end to slide along the slide rail (14). has been

The slide bar 34 is inclined while the roller part 34a slides along the inclined rail part 14a and the horizontal rail part 14b of the slide rail 14 when the lift main body 20 goes up and down. The bottom plate 30 functions to open and close the passages of the first and second sidewalls 21 and 23 .

That is, when the lift body 20 is raised and lowered by the elevating means, the roller portion 34a of the slide bar 34 passes through the horizontal rail portion 14b from the inclined rail portion 14a of the slide rail 14. The moment the inclined bottom plate 30 closes the passages of the first and second sidewalls 21 and 23 . On the other hand, when the lift body 20 is lowered by the elevating means, the roller portion 34a of the slide bar 34 passes through the inclined rail portion 14b in the horizontal rail portion 14b of the slide rail 14. At that moment, the inclined bottom plate 20 opens the passages of the first and second sidewalls 21 and 23 .

On the other hand, when the door 27 is installed on one side of the first and second side walls 22 and 24, the inclined bottom plate 30 may be installed on the other side of the first and second side walls 22 and 24, When the door 27 is installed on both sides of the first and second sidewalls 22 and 24 , it may be configured to be installed on the outside of the door 27 , respectively.

If a plurality of inclined bottom plates 30 are installed, the slide rails 14 should be installed on both sides of the side walls of the support body 10 , and the length of the slide rails 14 should be installed according to the elevation height of the lift body 20 . After the lift body 20 is raised and lowered, just before the stop position, the roller portion 34a of the slide bar 34 passes through the inclined rail portion 14b from the horizontal rail portion 14b of the slide rail 14. The inclined bottom plate 20 should be configured to open the passages of the first and second sidewalls 21 and 23 .

This embodiment may further include a plurality of object detection units 40 provided on the lower surface of the lift body 20 to selectively stop the operation of the lifting means by detecting people or obstacles when descending. .

The object detection unit 40 is preferably provided in plurality at the bottom of the bottom plate 21 so as to detect a person or an obstacle in any position or direction. The object detection unit 40 may be controlled by a control unit not shown in the drawing to selectively stop the operation of the elevating means.

As shown in FIG. 3, the elevating means includes a hydraulic stem 50 in which a rod part 50a is connected to the horizontal support bar 18 of the support 10 and slides up and down, and one end of the hydraulic pressure It includes a pair of chain parts 52 connected to the housing 50b of the stem 50 and the other end connected to the side surface of the transfer plate 23 , and an actuator 54 for operating the hydraulic stem 50 .

The hydraulic stem 50 consists of a rod part 50a and a housing 50b and is vertically disposed in the inner center of the support body 10 . The rod part 50a is connected to the horizontal support bar 18 to slide the horizontal support bar 18 up and down according to the expansion/contraction operation. The housing 50b is vertically disposed at a predetermined height from the bottom of the support 10, and one end of the chain unit 52 is connected to the upper side through a bracket 51 as a medium.

The chain part 52 is symmetrically installed on both sides of the hydraulic stem 50 to be connected to the hydraulic stem 50 and the transfer plate 23 . In addition, the chain part 52 is configured to smoothly transmit the force through the plurality of sprockets 53 installed on the horizontal support bar 18 . Here, the chain part 52 lifts the transfer plate 23 when the rod part 50a of the hydraulic stem 50 is extended so that the lift body 20 is raised and lowered. Of course, the chain part 52 lowers the transfer plate 23 when the rod part 50a of the hydraulic stem 50 is contracted so that the lift body 20 descends.

The actuator 54 is a hydraulic pump, and as hydraulic pressure is selectively supplied to the hydraulic stem 50 through a hydraulic line (not shown), the rod part 50a of the hydraulic stem 50 expands and contracts.

On the other hand, this embodiment may further include a fall prevention means for stopping the lift body 20 from falling in an abnormal state. Here, the fall prevention means is a support bar 60, a bushing member 62, a link member 64, a cam installed on the transfer plate 23 of the lift body 20, as shown in FIGS. 4 to 5b. member 66 .

That is, the fall prevention means includes a support bar (60) elastically supported by a bushing member (62) on the transfer plate (23) of the lift body (20) and movably movable in the vertical direction, and a fixed end of the support bar (60). a link member 64 connected to and a free end penetrating the side wall, and an extension side wall 10b of the support body 10 that is connected to the free end of the link member 64 and rotates when the link member 64 rotates. and a cam member 66 that is fixed while abutting.

The support bar 60 is equipped with an elastic spring 60a, and the spring 60a is disposed between the bushing member 62 and the link member 64 to be elastically supported. In addition, the support bar 60 has a chain portion 52 connected to the upper portion to receive tension in the upward direction.

The bushing member 62 is mounted on the side surface of the transfer plate 10 and serves to support the support bar 60 to be movable in the vertical direction.

The link member 64 includes a link portion 64a connected to the lower end of the support bar 60 and a link shaft 64b connected to the link portion 64a in a vertical direction. Here, the link member 64 is configured to rotate clockwise when the support bar 60 is lowered as shown in FIG. 5A . On the other hand, the link member 64 is rotated counterclockwise when the support bar 60 is raised and lowered as shown in FIG. 5B .

The cam member 66 is connected to the link shaft 64b of the link member 64 to rotate in a counterclockwise direction opposite to the link member 64 when the support bar 60 descends. The cam member 66 rotates counterclockwise through the link member 64 when the support bar 60 descends, that is, when the lift body 20 falls in an abnormal state, as shown in FIG. 5A. 10) by being fixed while in contact with the side wall, the lift body 20 does not descend any more and stops falling. Of course, when the lift body 20 operates normally, the cam member 66 is in a state in which the sidewall of the support body 10 is not constrained, as shown in FIG. 5A .

In the lift for a wheelchair according to an embodiment of the present invention, the wheelchair enters the lift body 20 through the inclined bottom plate 30 at the initial stop position, and the lift body 20 in the opposite direction from the final position after ascending or descending. By configuring so as to be able to exit through the door 27, passengers with disabilities, such as the disabled, can conveniently use it.

In addition, by stopping the fall of the lift through the fall prevention means (support bar 60, bushing member 62, link member 64, cam member 66) in an abnormal state, it is possible to prevent safety accidents of occupants in advance. be able to

On the other hand, the lift for wheelchair according to the embodiment of the present invention detects when there is a person or an obstacle in the lower part of the lift body 20 through the object detection unit 40 when the lift body 20 descends, and the lift body 20 ), it is possible to prevent accidents occurring in the vicinity of the lift body 20 by stopping.

Although exemplary embodiments of the present invention have been illustrated and described as described above, various modifications and other embodiments may be made by those skilled in the art. All such modifications and other embodiments are intended to be contemplated and included in the appended claims without departing from the true spirit and scope of the present invention.

10: support 12: guide groove
14: slide rail 16: pedestal
18: horizontal support bar 20: lift body
21: bottom plate 22: first side wall
23: transfer plate 24: second side wall
25: handle part 26: lift operation part
27: door 28: hinge
30: inclined bottom plate 32: hinge part
34: slide bar 40: object detection unit
50: hydraulic stem 52: chain part
53: sprocket 54: actuator
60: support bar 62: bushing member
64: link member 66: cam member

Claims (8)

a support body in which a pair of guide grooves are formed in a vertical direction at regular intervals on the front surface, a slide rail is installed in a vertical direction on a side surface of the guide groove, and a horizontal support bar is provided therein;
The first and second sidewalls extending in the vertical direction on both sides of the bottom plate are installed facing each other, and a door is installed between the first and second sidewalls on one side, and corresponding to the guide groove on the rear surface of the first sidewall a lift body provided with a pair of transfer plates so as to be coupled to the support;
A passage between the first and second sidewalls is opened and closed by hingedly connected to the bottom surface of the lift body between the first and second sidewalls on one side, and a slide bar is provided on one side to slide in contact with the slide rail inclined sole plate;
A rod part is connected to the horizontal support bar of the support body to slide a hydraulic stem up and down, one end connected to the housing of the hydraulic stem and the other end connected to the side of the transfer plate, a pair of chain parts and the hydraulic stem are operated Elevating means having an actuator to make;
a plurality of object detection units provided on the bottom plate of the lift body to selectively stop the operation of the elevating means by detecting people or obstacles when descending; and
A support bar elastically supported to be movable in the vertical direction through a bushing member on the transfer plate of the lift body, a link portion connected to the lower end of the support bar, and a fixed end are vertically connected to the link portion, and a free end is the transfer A link member comprising a link shaft penetrating a plate, and a cam member fixed to the extended side wall of the support body while being connected to the free end of the link shaft while the link member rotates, is provided, so that the lift body is in an abnormal state. Including; fall prevention means to stop the fall;
In the lift body, one end of the door is hinged and opened in a rotating state, and magnetic force is selectively supplied to the opposite end of the other end of the door to be fixed when ascending and descending and released when stopped, through the inclined bottom plate. A wheelchair lift in which the wheelchair enters the lift body and exits by opening the door after ascending and descending.
delete The method according to claim 1,
The slide rail of the support includes an inclined rail portion formed at the tip portion and a horizontal rail portion extending to the inclined rail portion,
The slide bar of the inclined floor plate has a fixed end fixed to one side of the inclined floor plate, and a roller part is rotatably mounted to the front end of the free end.
4. The method according to claim 3,
In the inclined bottom plate, when the lift body is raised and lowered by the elevating means, the passages of the first and second sidewalls are closed when the roller part of the slide bar passes from the inclined rail part to the horizontal rail part, and the slide bar A lift for a wheelchair, characterized in that the roller part of the horizontal rail part has a structure that is opened when passing from the inclined rail part.
5. The method according to claim 3 or 4,
The inclined bottom plate is installed on the other side of the first and second sidewalls when the door is installed on one side of the first and second sidewalls, and is installed on the other side of the first and second sidewalls when the door is installed on both sides of the first and second sidewalls. A wheelchair lift, characterized in that each is installed on the outside.
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