KR20220096010A - Variable expression stairs device for stage lift - Google Patents

Abstract

An objective of the present invention is to provide a variable stair device usable as a stage lift which is conveniently manufactured and does not easily break down. The variable stair device usable as a stage lift is installed on a performance stage, a building structure, and a vehicle to be selectively converted into an elevator or stairs and comprises: a main body having a space therein, a support body on the front and rear sides thereof, and a base plate on the bottom thereof; a lifting unit installed in the space of the main body, and having a pair of links assembled in an X-shape to make up one or more link parts to be folded vertically; a driving unit having a sprocket connected to a drive motor, wherein the sprocket rotates and moves a lifting chain upwards and downwards; a stepping body connected to the upper end of the link parts of the lifting unit, and moving vertically by the lifting chain; a bump driving part installed on the exit-side stepping body allowing a rider to enter, and lifting and lowering a bump; and a control part controlling the drive motor in accordance with an inputted signal to move the lifting chain upwards and downwards, forming stairs by varying operation time, and simultaneously operating the drive motors for the same time to operate as an elevator.

Description

Variable expression stairs device for stage lift

The present invention relates to a variable stair device for use with a stage lift.

More specifically, it allows the user to selectively use it as a stairway or elevator, and is particularly installed as a stage device for a performance stage so that it can be used for a performance, and is installed in various building structures, public places, and vehicles to use stairs or stairs It relates to a variable stair device for use with a stage lift that can be used conveniently by the elderly, the disabled, pregnant women, etc.

In addition, the present invention has an elevator function, so that a wheelchair can be boarded, and a heavy load or a heavy object can be easily transported, and a heavy object or a wheelchair, etc., rolls or slides during movement, and is a risk factor that may fall or fall. It is related to a variable stair device for use with a stage lift that does not cause malfunctions, shortens the conversion time as the process of converting from stairs to elevator or station is simple and short.

All building structures and vehicles such as buses are equipped with stairs for people to climb up and down. These stairs consist of a configuration in which a vertical riser and a horizontal stepping floor are continuously arranged, and a non-slip is installed on the stepping floor to prevent slipping, and a handrail is installed on the side to prevent the risk of falling. is the structure

These stairs have the advantage of being easier to go up and down than the slippery slopes, but due to the nature of the stairs, there is a problem in that it is not easy for the disabled, infants or pregnant women, and elderly adults in wheelchairs to climb up and down.

Of course, this problem can be solved by installing an elevator, but construction time and cost are excessive, and space is limited when space is secured.

On the other hand, there are cases where a lift and stairs are installed on the stage for performances. However, installing the lift and the stairs together on the stage costs a lot of money, and it is difficult to secure space on a limited stage. .

Therefore, in recent years, an auxiliary stepping board or a device that serves as a staircase and a lift has been developed.

For example, Korean Patent Registration No. 10-1861107 discloses a plurality of footrests, a stair lifting and lowering means for elevating and lowering the first footrest disposed in the front among the plurality of footrests, and disposed behind according to the elevating height of the first footrest. It is a lift-type variable stair device comprising an interlocking elevating means for elevating and lowering the scaffolding step by step, and a platform elevating means for elevating and lowering a platform formed by matching the heights of the scaffolding.

However, in such a device, each motor constituting the interlocking elevating means and the platform elevating means rotates and operates, and among the two motors, the motor of the interlocking elevating means moves together when the platform is elevating and lowering. That is, there is a risk of malfunction as the motor and related components move together and repeatedly.

As another example, Korean Patent No. 10-1491926 discloses a safety stair lift device for patients, the disabled, or infants that allows the stairs installed in a multi-step shape to rise as needed and maintain a flat horizontal plane,

a driving motor; a plurality of sprockets and chains receiving driving force from the driving motor; a plurality of drive shafts installed on each of the sprockets to receive driving force; a screw shaft connected to the drive shaft, installed on both sides, and having threads formed in opposite directions along an outer circumferential surface; a rotating body assembled to each of the screw shafts and having a screw thread formed along the inner circumferential surface so as to be rotated in engagement with the screw shaft; a plurality of rotating bars moving in association with the operation of the rotating body, having rollers mounted on both ends, and moving in an up/down direction about a hinge axis; The drive shaft, the screw shaft, the rotating body, and the rotating bar are individually installed on each of the steps, and receive the driving force of the drive motor to raise or lower each step in stages. It is a safety stair lift device for

However, looking at such a device, each rotating body, screw shaft, and motor are required to move the rotating bar, and the structure is complicated, and the screw thread supports the rotating bar, so the wear rate is fast, and frequent breakdown and repair and Replacement problems may arise.

The present invention has been made in view of such problems in the prior art, and its purpose is that the process of forming a stair in an elevator or an elevator function is simple, fast, and has a simple structure, so there are few failures, and the production is convenient. It is to provide a stair device.

Another object of the present invention is that the stairs and elevator functions are selected by the user, so that the handicapped, the elderly, children, and pregnant women can easily board, and they can carry heavy loads easily, and furthermore, they appear from the end of the floor at the entrance to the upper part. An object of the present invention is to provide a variable stair device for use with a stage lift that can prevent safety accidents by preventing a heavy body, particularly a wheelchair wheel, from being rolled or pushed toward an entrance or exit during movement by providing a stumbling block.

The present invention is a variable stair device for a stage lift that is installed on a performance stage, a building structure, or a vehicle and is selectively converted into an elevator or stairs,

a body provided with a support body on the front and rear sides with a space therein, and a base plate provided on the floor; an elevating unit installed in the space of the main body and assembled in an "X" shape to form a link part, the link part being made up of one or more and folding up and down; a driving unit having a sprocket connected to the driving motor, and the sprocket rotates to move the lifting chain up and down; a stepping body connected to the upper end of the link portion of the elevating unit and moving up and down by the elevating chain; a bump driving unit installed on the stepping body at the entrance and exit of the occupant, and raising and lowering the bump; A control unit that controls the drive motor according to the input signal to move the lifting chain up and down, forms stairs with a difference in operation time, and operates the drive motor at the same time for the same time to operate as an elevator; This is achieved by having

The present invention is applied to a performance stage and a building structure or vehicle, and can be used as a stair or an elevator by the user's choice, so it is convenient, and the structure is not complicated and the load can be distributed, so it is safe, there is no fear of failure, and the stairs In the elevator or vice versa, it can be easily operated, and furthermore, the conversion time is short, which is a convenient invention.

In addition, the present invention is an invention that helps a person who has difficulty going up and down stairs, makes it easy to climb up and down a heavy load or a heavy object, and does not have a fear of rolling down a wheelchair, etc.

1 is a front view of a stage lift combined variable stair device to which the present invention is applied;
2 is a plan view of a stage lift combined variable stair device to which the present invention is applied;
3 is a side view of a stage lift combined variable stair device to which the present invention is applied;
4 is an enlarged cross-sectional view of the main part of the present invention;
5 is an enlarged plan view of the main part of the present invention;
6 is a side view of a stage lift combined variable stair device to which the present invention is applied;
7 is an enlarged view of the main part of the elevating chain applied to the present invention;
8 is a side view showing the operation process of the present invention;
Figure 9 is a side view showing the driving part of the bump applied to the present invention,
10 is a block diagram of the present invention.

In describing the embodiments of the present invention, the same reference numerals mean the same components, and additional descriptions that overlap or limit the meaning of the invention may be omitted in describing the embodiments of the present invention.

Prior to the detailed description, even though it is described as a singular expression in this specification, in light of the environment used without clearly distinguishing the singular/plural in the use of the Korean language and the general terminology environment in the art, the concept of the invention It is used in the meaning including plural expressions unless contrary to the contrary, contradictory in interpretation, or otherwise clearly meant. In addition, 'comprising', 'having', 'comprising', 'comprising', etc., which have been or may be described herein, indicate the presence or possibility of adding one or more other features or components or combinations thereof. It should be understood as not precluding.

First, FIG. 1 attached to the present invention is a front view of a stage lift combined variable stair device to which the present invention is applied, FIG. 2 is a plan view of a stage lift combined variable stair device to which the present invention is applied, and FIG. 3 is a combined variable type It shows a side view of the stair device.

4 and 5 are enlarged views of the main part of the present invention, FIG. 6 is a side view of a stage lift combined variable stair device to which the present invention is applied, and FIG. 7 is an enlarged view of the main part of the elevating chain applied to the present invention It is also

In addition, Figure 8 shows a side view showing the operation process of the present invention, the accompanying Figures 9a, b is a side view showing the driving unit of the bump applied to the present invention, Figure 10 is the operation process of the present invention It is a block diagram for explanation.

In the drawings, the variable stair device 10 of the present invention is installed on a performance stage as well as various building structures and school buses, and has a lift function, that is, an elevator, on which stairs or wheelchairs can be boarded.

The variable stair device of the present invention includes a stepping body 200 that an occupant can step on or a wheelchair, and an elevating unit 400 that allows the stepping body to stably move up and down, and the elevating unit ( 400) and the stepping body 200 are accommodated and the body 100 equipped with a lower guide rail 144 for guiding the vertical movement of the elevating unit, and the stepping body located at the edge of the inlet (entrance) side of the stepping body The basic configuration is a bump driving unit 300 installed on a body to prevent a wheelchair or a weight from falling, and a driving unit 500 for vertically moving the stepping body 200 .

In addition to this, the present invention provides a control unit (600) for controlling the driving unit (500) and the sill drive unit (300), a sensing means (700) for detecting whether or not a passenger gets on and off, and a user to select a staircase or an elevator An input unit 800 to enable it is further provided.

body (100)

The body 100 according to the present invention is basically a base plate 102, a support 160 positioned at the front and rear respectively when referring to FIG. 1, and the support 160 is provided inside the elevating unit ( 400) and the space portion 120 for positioning the stepping body 200, and a wall or an entrance is provided on the left and right sides of the main body 100.

In the present invention, the left side is the doorway with reference to FIG. 1 and the side wall 104 is erected on the right side, and the stairs gradually increase based on this doorway, and the stepping body 200 on the doorway side has a sill 301 to be described later. It is installed to prevent wheelchairs, etc. from rolling in the direction of the entrance after boarding, thereby preventing the risk of safety accidents.

The base plate 102, the side wall 104, and the support body 160 may be configured differently in various shapes depending on the construction location and environment, for example, the size and shape according to the number of the stepping bodies 200 are different, The position of the entrance and the side wall, and the shape and position of the support body may be different, and a door may be installed in the entrance, and it is possible to open both sides without installing a side wall or to install a door on both sides.

The guide rail 140 according to the present invention guides the vertical movement of the elevating unit 400 , and the lower guide rail 144 installed on the base plate 102 and the housing 220 constituting the stepping body 200 . ) is composed of an upper guide rail 142 installed on the lower surface of the upper plate.

On the opposite side of the base plate 102, that is, the lower guide rail 144, one end of the link constituting the lifting unit 400 is connected to a lower fixing body 464 so that the position is fixed, and the housing 220 Also, the upper fixing body 462 to which one end of the upper link is fixed is installed.

The support 160 has a vertical guide portion 162 for guiding the movement of the housing 220 is installed on the outer surface of each, adjacent to the vertical guide portion 162, the guide groove 164 is cut vertically is the composition

stepping body (200)

The stepping body 200 according to the present invention is such that a passenger can step on it, and it can be carried by loading not only a person but also a wheelchair, a heavy body, and the like.

The stepping body 200 is composed of a housing 210 with an open bottom and a stepping plate 240 installed on the upper end of the housing 220, and the upper fixing body 462 is located on the bottom surface of the top plate of the housing 220. ) and the upper guide rail 142 are installed, and the outer surface is fitted with the vertical guide part 162 and the ear door is provided with a sliding member 260 so that the housing 220 can be stably raised and lowered.

The sliding member 260 has a configuration in which an extension plate 262 provided on one side is connected to the housing 220 in a state where it is fitted in the guide groove 164, and the extension plate 262 has a guide groove ( 164), and the sliding member 260 moves along the vertical guide portion 162, so that the housing can be moved stably.

On the other hand, the configuration of the sliding member 260 and the extension plate 262 is an example, and the extension plate and the sliding member are attached to the housing in a different form and configuration than the method in which the extension plate is connected to the housing as described above. It may be connected and installed, and an extension plate and a guide groove for moving the extension plate may be formed on each side of the sliding member as a center.

In addition, the extension plate 162 is equipped with a touch unit for touching the second micro switch 740 constituting one of the sensing means to be described later.

The stepping plate 240 according to the present invention is seated on the upper plate of the housing 220 and is fixed by welding or bolt tightening method, and the upper surface thereof has a non-slip non-slip and a beautiful appearance for a finishing material or at night. Illuminators and LED lamps may be installed so that they can be easily seen on a dimly lit stage.

Bump drive unit 300

In the stage lift combined variable stair device 10 according to the present invention, in order to prevent the risk of an accident in which a wheelchair or a weight body slips and falls in the direction of the entrance, the stepping board 240 appears above the doorway side step 200 . To install the sill 301, the sill driving unit 300 for protruding and retracting the sill is installed.

The bump driving unit 300 is based on being installed in the housing 220 of the stepping body located at the entrance side as shown in the attached FIG. 9, but may be installed in the stepping body at the left and right ends or in the middle if necessary.

The bump driving unit 300 of the present invention includes a motor 310, a driven pulley 330 installed on the shaft 320 of the motor 310, a driven pulley 340, and wound around these pulleys to transmit rotational force. It is composed of a belt 350, and a screw rod 360 is installed in the driven pulley 340, and a lifting plate is inserted into the screw rod 360 to move up and down.

The lifting plate 370 is configured to be connected to the bump 301 .

In the bump driving unit 300 of this configuration, the motor 310 rotates according to a signal from the control unit 600, and the driven pulley 330 and the driven pulley 340 connected to the motor 310 rotate, and the driven pulley and The screw rod 360 rotates together.

When the screw rod 360 rotates, the lifting plate 370 moves upward or downward along the screw rod 360 , and the bump 301 connected to the lifting plate 370 moves to the upper part of the stepping plate 240 . It protrudes or sinks and prevents the wheelchair from sliding or rolling.

Meanwhile, in the present invention, the driven and driven pulleys 330 and 340 may cope with transmitting the power of the motor by winding a sprocket, that is, a chain, and a timing belt may also be applied. Also, the bump drive unit 300 of the present invention ) is provided with a pair of first microswitches 720 vertically configured to be adjacent to the screw rod 360 , and a protrusion is provided on the lifting plate 370 to contact the first microswitch 730 . The stop signal of 310 is to be output. A control unit, which will be described later, receives this and stops the motor.

Elevating unit (400)

The lifting unit 400 according to the present invention allows the stepping body to move stably without shaking, and is installed on each stepping body, and is composed of a plurality of links 420 that are folded up and down.

A pair of links 420 are assembled in an “X” shape to form a link portion 440 , and one or more of the “X”-shaped link portions 440 are provided, and the link and the link are the center of rotation. It is connected by a rotating pin 442 forming the fold.

In addition, any one of the links 440 located at the upper end of the elevating unit 400 is connected to the upper fixed body 462 provided in the housing 220 , and the opposite link is to the upper guide rail 142 . It is configured to be connected to the movable body 480 that is assembled and moved, that is, the upper movable body 482 .

Similarly, the link part located at the lower end of the lifting unit 400 also has one link connected to the lower fixed body 464 installed on the base plate 102, and the other link is assembled to the lower guide rail 144 to move the lower part. It is configured to be connected to the movable body 484, so that the housing can be stably elevated and lowered.

In the lifting unit 400 of this configuration, when the moving body moves along the guide rail when the stepping body moves up and down, the link part is folded down or spread upward.

drive unit (500)

The driving unit 500 according to the present invention elevates each of the stepping bodies, and is installed in the same number as the number of stepping bodies as shown in the drawing.

The driving unit 500 raises or lowers the stepping body 200 by moving the lifting chain 500a up and down. It is composed of a driven pulley 540 that rotates around 530 and this driven pulley and a belt 550, and is provided with a sprocket 560 that is installed on the driven pulley 540 and rotates.

The sprocket 560 pushes up or down the lifting chain 500a so that the stepping body 200 moves up and down.

The lifting chain 500a according to the present invention is composed of an inner plate 510a, an outer plate 520a, and a chain pin 530a, and a power pin 440a engaged with the sprocket 560 here. will be.

The elevating chain 500a has a configuration in which the upper end is fixed to the housing 200 of the stepping body 200, and the lower portion elevates when the sprocket rotates while engaged with the sprocket 560, and the lower end is inside the chain box 502 , and is received in a "⊃" manner.

The outer plate 520a is configured such that the upper and lower surfaces, that is, the surfaces where the upper and lower portions contact each other, are smooth surfaces, and the lifting chain is erected by the smooth surface to push up the stepping body 200 .

One or more lifting chains 500a according to the present invention may be installed in one housing 220 as shown in the drawings, installed in each of the stepping bodies 200 , and the lifting units composed of the links are also installed in each of the stepping bodies. will become

Unexplained reference numeral 500b in the drawing supports the pulley and adjusts the height.

control unit 600

The control unit 600 according to the present invention controls each of the motors 310 and 510 according to the signal received from the sensing means 700 so as to raise and lower the motor 310 and 510, and a step according to the signal to the input unit 800. Or transform it into an elevator.

The sensing means 700 according to the present invention is to prevent a safety accident by detecting whether the occupant has completely gotten off or got on while sensing the occupant or the transported object, particularly when performing the elevator function.

Here, the detection means 700 may be composed of a human body detection sensor 720 or a weight detection sensor, and a first micro switch 730 installed in the bump driving unit, and a second mask switch for detecting the elevation of the housing. (740) is equipped.

In addition, the second micro switch 740 is installed on each of the upper and lower portions of the body 100 so that the touch portion of the extension plate provided in the housing is in contact.

The input unit 800 according to the present invention may be configured in the form of a button or a touch screen.

The following describes the operation process of the present invention configured as described above.

1) Preparation step

The variable stair device of the present invention is basically operated in a state in which all stepping bodies are lowered or positioned in a straight line, but may be converted into an elevator in a stair state as necessary.

2) Steps to form stairs

When the user inputs to the input unit 800 to form a step, the control unit 600 receives it and operates the driving motor 510 of the driving unit 500 .

In this case, the control unit 600 operates the driving motors in consideration of the preset position, and stops all the driving motors when the stepping body located at the upper end reaches the second micro switch 740 .

In other words, the operation time of each driving motor 510 is sequentially controlled in consideration of the preset height from the doorway side stepping body, and the last stepping body 200 reaches the second microswitch 740 and outputs an arrival signal. If so, the control unit 600 receives it and ends the step formation.

Here, each driving unit 500 rotates when the driving motor 510 rotates, and the driven pulley 530 and the driven pulley 540 connected thereto rotate, and the sprocket 560 installed on the driven pulley rotates, and the lifting chain 500a is rotated. to bring it down or to raise it.

On the other hand, in the present invention, it is not necessary to form the stairs with a constant slope as shown in FIG. 8 . In some cases, the controller controls the rotation time of the motor so that the middle is high and both sides are low, that is, it may be configured in a “∧” shape.

3) Elevator Formation Stage

In a state in which stairs are formed or in a state in which all steps are lowered or raised, the user may select an elevator function.

When the user inputs the ascending or descending of the elevator to the input unit 800 , the control unit 600 receives it and simultaneously operates the driving motor 510 of the driving unit 500 .

For example, if the stairs are formed, all the stepping bodies are lowered or raised according to the user's location to complete the user's boarding preparation. will be.

When a user boards, the sensing means 700 detects this and completes transport preparation, and the control unit 600 simultaneously rotates all the driving motors 510 of the driving unit according to the signal and the motor ( 310) is operated.

When the motor 310 rotates, each pulley rotates and the screw bar provided on the driven pulley rotates, so that the lifting plate assembled to the screw bar and the bump assembled to the lifting plate rise to the upper part of the stepping plate, and the lifting plate is the first microswitch When it reaches , the operation stops.

When the stepping body reaches the upper or lower part, the second micro switch outputs a signal, and the control unit stops the operation of all driving motors 510 and reversely rotates the motor 310 of the bump driving unit so that the occupant can get off. will do

As described above, those skilled in the art to which the present invention pertains will be able to understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that all of the embodiments described above are illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention, rather than the above detailed description, all changes or modifications derived from the meaning and scope of the claims to be described later and their equivalent concepts.

10: variable stair device 100: body
200: stepping body 220: body
300: bump driving unit 301: bump
400: elevating unit 420: link
500: drive unit 500a: elevating chain
510: drive motor

Claims (4)

It is a variable stair device for a stage lift that is installed on a performance stage, building structure, or vehicle and is selectively converted into an elevator or stairs,
a body provided with a support body on the front and rear sides with a space therein, and a base plate provided on the floor;
a lifting unit installed in the space of the main body and assembled in an "X" shape to form a link part, the link part being made up of one or more and being folded up and down;
a driving unit having a sprocket connected to the driving motor, and the sprocket rotates to move the lifting chain up and down;
a stepping body connected to the upper end of the link part of the elevating unit and moving up and down by the elevating chain;
a bump driving unit installed on the stepping body at the entrance and exit of the occupant, and raising and lowering the bump;
A control unit that controls the drive motor according to the input signal to move the lifting chain up and down, forms a staircase with a difference in operation time, and operates the drive motor at the same time for the same time to operate as an elevator; Variable stair system for use with stage lift. The sliding body according to claim 1, wherein at least two or more of the stepping bodies are arranged, and the stepping body is composed of a body and a stepping plate provided on the upper plate of the body, and the sliding moving along the vertical guide section provided on the support body on the outer surface of the body. A variable stair device for use with a stage lift, including one equipped with a member. The method according to claim 2, wherein the sliding member is assembled to a vertical guide unit erected vertically to the support body to move up and down, and the extension plate provided on one side of the sliding member includes moving up and down along the guide groove formed vertically on the support body. A variable stair device that doubles as a stage lift. According to claim 1, wherein the bump driving unit is composed of a motor, a driven pulley connected to the motor, a driven pulley wound by the belt, and a screw rod connected to the driven pulley, and moves up and down along the screw rod. A variable stair device for use with a stage lift, comprising: a bump is installed on the elevator board, and the bump is moved upward or downward according to a signal from a control unit.

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