KR101423821B1 - Automatic Step Plate for Passenger Car - Google Patents

Abstract

The present invention relates to a stepped-type movable footrest device for a vehicle, and more particularly, to a stepped-type movable footrest device for a vehicle, in which the footrests are operated in a stepped shape or a horizontal plane using three footrests, And the durability of the footrest can be improved. Further, the interlocking operation of the three footrests can be performed by using the link structure, thereby providing a stepped-type movable footrest device for a vehicle which has a simple operation structure and is easy to manufacture.

Description

[0001] The present invention relates to an automatic step plate for passenger car,

The present invention relates to a stepped movable footrest device for a vehicle. More specifically, by operating three steps to form a step or a horizontal plane, it is possible to make passengers get on and off more safely and conveniently, more precise operation is possible, and durability The present invention relates to a stepped-type movable footrest device for a vehicle, which has a simple operating structure and is easy to manufacture, by allowing interlocking operation with respect to three footrests by using a link structure.

Generally, a door of a railway car is formed to have a predetermined height from the ground. A platform corresponding to the height of a door of a railway car is installed at a railway station where a railway vehicle stops for the passengers' They are boarding or getting off the railway car through the door of the vehicle.

At this time, the platform installed in each railway station is provided with two kinds of platforms, one is a solid platform having a relatively high height and the other is a low-floor platform having a relatively low height. Accordingly, a passenger can easily get on and off A separate movable footrest device is installed.

That is, in the room where the door of the railway car is formed, a stairway is provided which can descend from the indoor floor of the railway car to the platform, and the stairs of the door are installed to correspond to the height of the low- In case of a stop, the passenger is easily configured to get off the platform through the entrance stairs. However, in the case where the railway vehicle stops at the train station of the solid-state platform, since the stairs of the doorway are located at a position lower than the height of the platform, a separate movable scaffolding device is installed at the stairs of the doorway of the railway vehicle have.

Such a movable footrest device for a railway vehicle is a device for connecting an indoor floor of a railway vehicle with a platform at the same height for the purpose of getting on and off the passenger, and is configured to operate only when the railway vehicle stops on a solid platform, The movable footrest device for a vehicle has a problem in that it is simply constructed by a manual operation or its structural strength is so weak that it is easily broken or broken and its use is very inconvenient and unsafe.

In addition, such a movable footrest device can be mounted on a vehicle such as a bus or a van, and a method of drawing a footrest assembly that is flush with the floor of an automobile so that a disabled person or an elderly person can get on and off more safely is developed However, it has not been widely used due to durability and inconvenience of use.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art, and it is an object of the present invention to provide a method and apparatus for operating a staircase or a horizontal plane using three scaffolds, And to provide a step-by-step movable footrest device for a vehicle which can perform more accurate operation and improve durability.

Another object of the present invention is to provide a step-by-step movable footrest device for a vehicle, which has a simple operation structure and is easy to manufacture, by allowing interlocking operations to be performed on three footrests using a link structure.

The present invention relates to a stepped-type movable footrest device for a vehicle, which is installed at a doorway of a vehicle so that passengers can get on and off easily, comprising: two support cases mounted on entrance and exit of a vehicle and spaced apart from each other in parallel; A first footrest disposed between the two support cases and having an upper end rotatably coupled to the support case about a first horizontal axis; A second footrest which is rotatably coupled to the lower end of the first footrest around a second horizontal axis, and which is disposed in a horizontal state; A third footrest having an upper end rotatably coupled to the other end of the second footrest about a third horizontal axis; And a main driving unit for vertically curving the second footrest so that the second horizontal axis moves along an arc path centered on the first horizontal axis, wherein the first footrest comprises an upper curve of the second footrest, Wherein the second stepping portion is pivotable about the first horizontal axis according to the movement and is in a horizontal state flush with the second footstep or in a perpendicular state perpendicular to the second footstep.

At this time, the support case includes a support frame forming an outer frame; And an inner plate and an outer plate that are respectively coupled to inner and outer surfaces of the support frame, wherein the main drive unit is disposed in the inner space of the support case, and the inner plate is provided with A guide hole may be formed along the curved path of the second horizontal axis and the third horizontal axis.

The main driving unit may include a driving motor; A movable block module including a movable block linearly moved by driving the driving motor; And a link module connected to the movable block and the second scaffold, respectively, so that the second scaffold interlocks with the movement of the movable block so as to move upward and downward.

Further, the movable block module may include a guide frame having one end rotatably coupled to the inside of the support case; And a screw rod rotatably coupled to the guide frame so as to be rotatable about a longitudinal axis of rotation so as to be rotatable by the drive motor, wherein the movable block is threaded through the screw rod, And the linear motion path can be guided by the guide frame.

The link module may include a connecting plate having one side rotatably coupled to the second foot and the other side rotatably coupled to the movable block; And a link plate having one end rotatably coupled to the connection plate and the other end rotatably coupled to the support case.

The apparatus further includes a sub-driving unit coupled to the second foot so as to move integrally with the second foot, and rotationally driving the third foot on the third horizontal axis, And may be in a horizontal state that is flush with the second footplate or in a perpendicular state perpendicular to the second footplate.

The sub-driver may include a fixed frame coupled to a lower portion of the second footrest; A pneumatic cylinder coupled to the fixed frame and operated through air pressure; And a movement guide that linearly moves by the operation of the pneumatic cylinder, and the third footrest can be configured to pivot about the third horizontal axis in accordance with the linear movement of the movement guide.

In addition, a guide rail may be mounted on the fixed frame, and a guide roller inserted and guided by the guide rail may be mounted on one side of the movable guide so that the linear movement path may be guided.

According to the present invention, it is possible to operate the straddle-type or three-level straddle-type straddle-type straddle type vehicle, Can be improved.

In addition, by separating the main driving unit and the sub-driving unit and performing the interlocking operation with respect to the three footrests using the link structure, the operation structure is simple, accurate and safe operation is possible, and the manufacturing is convenient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view schematically showing an installation form of a stepwise movable footrest device for a vehicle according to an embodiment of the present invention;
2 is an exploded perspective view schematically showing a configuration of a stepped-type movable footrest device for a vehicle according to an embodiment of the present invention,
3 is a view schematically showing an operation state of a stepped-type movable footrest device for a vehicle according to an embodiment of the present invention,
4 is an exploded perspective view schematically showing a configuration of a main driving unit of a stepped-type movable footrest device for a vehicle according to an embodiment of the present invention;
FIG. 5 is an operating state diagram schematically showing an operating state of a main driving unit of a step-by-step movable footrest device for a vehicle according to an embodiment of the present invention;
FIG. 6 is an exploded perspective view schematically showing a configuration of a sub-driver of a step-by-step movable scaffold for a vehicle according to an embodiment of the present invention;
FIG. 7 is an operating state diagram schematically illustrating an operation state of a sub-driver of a step-by-step movable footrest device for a vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a view schematically showing an installation form of a step-by-step movable footrest device for a vehicle according to an embodiment of the present invention, FIG. 2 is a view schematically showing the configuration of a stepwise footrest device for a vehicle according to an embodiment of the present invention FIG. 3 is a schematic view illustrating an operating state of a stepped-type movable footrest device for a vehicle according to an embodiment of the present invention. Referring to FIG.

The stepped-type movable footrest device for a vehicle according to an embodiment of the present invention is installed at an entrance of a railway car or a general automobile and connects the floor of the vehicle with the floor of the vehicle at the same height so as to facilitate the getting- The apparatus may further include a support case 100, first to third footrests 210, 220 and 230, and a main driver 300, and may further include a sub driver 400.

The support case 100 constitutes a basic support structure of the entire apparatus, and is provided at two entrance and exit ports of the vehicle, and is provided so as to be spaced apart in parallel with each other. Each support case 100 includes a support frame 110 forming an outer frame and an inner plate 120 and an outer plate 130 which are respectively coupled to inner and outer surfaces of the support frame 110, The main driving unit 300 may be configured to be accommodated. At this time, a guide hole 121 may be formed in the inner side plate 120 along the curved path of the second foot plate 220. That is, the guide hole 121 may be formed along the curved path of the second horizontal axis C2 and the third horizontal axis C3, which will be described later.

The first to third footrests 210, 220, and 230 are disposed between the support case 100 and are configured to have a downward stepped shape from the floor of the entrance and exit of the vehicle. In this state, the main and sub driver units 300 and 400 So that the arrangement state can be changed in the form of one coplanar plane.

First, the first footrest 210 is disposed between the two support cases 100, and the upper end thereof is rotatably coupled to the support case 100 about the first horizontal axis C1. The second footrest 220 is pivotally coupled to the first footrest 210 and the third footrest 230 is pivotally coupled to the second footrest 220. One end of the second footrest 220 is rotatably coupled to the lower end of the first footrest 210 about the second horizontal axis C2 and the upper end of the third footrest 230 is connected to the other end of the second footrest 220 And is rotatably coupled to the end about the third horizontal axis C3.

The first, second, and third pedestals 210, 220, and 230, which are configured as described above, have a downward stepped shape in a reference state, and are formed in the same plane in a driven state driven by the main driver 300 and the sub driver 400. That is, in the reference state, the first footrest 210 is rotatably coupled to the support case 100 so as to be arranged in a vertical state, and the second footrest 220 is rotatably coupled to the lower end of the first footrest 210 And the third footrest 230 is rotatably coupled to one end of the second footrest 220 and disposed in a vertical state. The first foot plate 210, the second foot plate 220 and the third foot plate 230 are driven by the main driving unit 300 and the sub-driving unit 400 to be arranged in the same horizontal plane in the operating state.

The main drive unit 300 is coupled to the support case 100 to be accommodated in the inner space of the support case 100 and is configured to move the second support plate 220 up and down. At this time, the second footrest 220 and the second footrest 220 are coupled with each other about the second horizontal axis C2 so as to be rotatable relative to each other Therefore, the upward and downward curvature movement of the second footrest 220 proceeds in such a manner that the second horizontal axis C2 moves along a circular path around the first horizontal axis C1. When the second footrest 220 is moved up and down by the main drive unit 300 as described above, the first footrest 210 rotates around the first horizontal axis C1 and is flush with the second footrest 220 Or in a perpendicular state at right angles to the second footrest 220.

The sub-driver 400 is coupled to the lower portion of the second footrest 220 so as to move integrally with the second footrest 220 to rotate the third footrest 230 about the third horizontal axis C3. Accordingly, the third footrest 230 may be in a horizontal state that is flush with the second footstep 220 or perpendicular to the second footstep 220 according to the operation of the sub-driving unit 400.

According to such a structure, the step-type movable footrest device for a vehicle according to an embodiment of the present invention includes first to third footrests 210, 220 and 230 arranged vertically and horizontally in a standard state and in a downward stepped state, The first to third footrests 210, 220 and 230 are driven by the driving unit 300 and the sub-driving unit 400 so that they all have the same horizontal plane.

3 (a), the first footrest 210 is in a vertical position, the second footrest 220 is in a horizontal position, and the third footrest 230 is in a vertical position Thus forming a downward staircase. In this state, the passenger can get on and off through the movable scaffold in such a stepped state. However, when the height of the platform is high, the stepped-type movable scaffold is operated so that the bottom surface of the vehicle and the platform are flush with each other. In this case, as shown in FIG. 3 (b) The second foot plate 220 is moved in the up and down curves while maintaining the horizontal state. By this operation, the first footrest 210 rotates about the first horizontal axis C1 and the first footrest 210 and the second footrest 220 form the same horizontal plane. 3 (c), the third footrest 230 rotates about the third horizontal axis C3 by the sub-driver 400, and the first to third footsteps 210, 220, and 230 ) Are all in the same horizontal plane.

If the first to third footrests 210, 220, and 230 are operated to have the same horizontal plane, the passengers can get on and off more easily, and the boarding work for the aged and the disabled can be performed more safely and conveniently.

FIG. 4 is an exploded perspective view schematically showing a configuration of a main driving unit of a stepped-type movable footrest according to an embodiment of the present invention. FIG. 5 is a cross- Fig. 3 is an operational state diagram schematically showing an operating state of the electronic device shown in Fig.

The main driving unit 300 includes a driving motor 310, a movable block module 320 and a link module 330 as shown in FIG. 4, . The movable block module 320 includes a movable block 321 that moves linearly by driving the drive motor 310. The link module 330 is mounted on the movable block 321 and the second foot plate 220, And the second footrest 220 interlocks with the movement of the movable block 321 to move up and down.

The movable block module 320 includes a guide frame 322 having one end pivotally coupled to the inside of the support case 100 and a guide frame 322 rotatable by the drive motor 310. [ And a screw rod 325 rotatably coupled to the rotary shaft about the longitudinal axis of rotation.

The guide frame 322 is formed in a rectangular frame shape and a hinge block 323 having a hinge shaft 324 formed at one end thereof is coupled to the guide frame 322. The guide frame 322 is rotatably supported about a hinge axis 324 of the hinge block 323. [ And is coupled to the case 100. A screw rod 325 is rotatably coupled to the center of the guide frame 322, and a screw rod is formed on the outer circumferential surface of the screw rod 325 and is rotationally driven by a driving motor 310. In this case, the driving motor 310 and the screw rod 325 may be connected to each other via a separate movable belt 311. The movable block 321 is screwed so as to penetrate the screw rod 325 and is also inserted through the guide frame 322 to guide the linear movement path of the movable block 321. A separate limit switch 326 can be mounted on both ends of the guide frame 322 in the moving direction of the movable block 321 so that the moving distance of the movable block 321 can be limited within a certain range.

The link module 330 includes a connection plate 331 having one end rotatably coupled to the second footrest 220 and the other end rotatably coupled to the movable block 321, And a link plate 333 coupled at one end to the support case 100 and rotatably coupled at the other end to the support case 100.

The connection plate 331 is inserted into one side of the second horizontal axis C2 and the third horizontal axis C3 formed at both ends of the second footrest 220 and is connected to the second horizontal axis C2 and the third horizontal axis C3 And a separate connecting pin 334 is coupled to the other surface thereof to be rotatably coupled with the movable block 321 of the movable block module 320. One end of the link plate 333 is rotatably coupled to the connection plate 331 and the other end of the link plate 333 is rotatably coupled to the support case 100 through a separate fixing bracket 332.

When the screw rod 325 is rotated by the drive motor 310 according to the above configuration, the movable block 321 is moved in the direction of (b) . When the movable block 321 moves linearly, the connecting plate 331 moves together with the movable block 321. At this time, since the connecting plate 331 moves along the rotation path of the link plate 333, The guide frame 322 of the movable block module 320 is rotated around the hinge axis 324 by a predetermined angle. The connecting plate 331 is moved up and down according to the motion state, and the second foot plate 220 is moved up and down. At this time, the second footrest 220 maintains a horizontal state and the second horizontal axis C2 moves along a curved path that moves along a circular path around the first horizontal axis C1. A guide hole 121 is formed in the inner side plate 120 of the support case 100 along the curved path.

FIG. 6 is an exploded perspective view schematically illustrating the configuration of a sub-driver of a stepped-type movable scaffolding apparatus for a vehicle according to an embodiment of the present invention. FIG. 7 is a cross- Fig. 3 is an operational state diagram schematically showing an operating state of the electronic device shown in Fig.

The sub-driver 400 is coupled to the second footrest 220 and rotatably drives the third footrest 230 about the third horizontal axis C3. The sub-driver 400 is fixedly coupled to the lower portion of the second footrest 220, A pneumatic cylinder 420 coupled to the fixed frame 410 and operated through air pressure and a movement guide 430 moving linearly by the operation of the pneumatic cylinder 420. At this time, the movement guide 430 reciprocates in a direction perpendicular to the third horizontal axis C3. As the movement guide 430 linearly moves, the third footrest 230 rotates around the third horizontal axis C3 .

The fixed frame 410 is coupled to a lower portion of the second foot plate 220 through a separate supporting bracket 411. A guide rail 440 is mounted on the fixed frame 410 along the moving direction of the moving guide 430 . The movement guides 430 may be formed in two plate shapes spaced apart from each other and are coupled through a connection bracket 431 so that the two move integrally at the same time and the connection bracket 431 is connected to the pneumatic cylinder 420 Can be configured to be connected. This movement guide 430 rotates the third footrest 230 by moving the third footrest 230 linearly while moving the third footrest 230 more smoothly relative to the movement guide 430 A connection block 450 having a guide hole 451 formed therein may be coupled to the rear surface of the third foot plate 230 and a guide hole 451 may be formed at the end of the movement guide 430. [ So that the guide pin 433 is slidably moved. A guide roller 432, which is inserted into the guide rail 440, may be mounted on the side surface of the movement guide 430.

7 (a) and 7 (b), it is preferable that the sub driver 400 operates in a state in which the second foot plate 220 is moved upward by the main driver 300, when the pneumatic cylinder 420 is actuated to advance the movement guide 430 in a state in which the third footrest 230 is vertically disposed as shown in FIG. The third footrest 230 rotates about the third horizontal axis C3 and forms the same horizontal plane as that of the second footstool 220. Of course, when the movement guide 430 is moved back by the operation of the pneumatic cylinder 420, the third footrest 230 returns to its vertical state again by its own weight. In this case, when the guide pins 433 of the movement guide 430 are inserted into the connection block 450 of the third footrest 230 so as to be interlocked with each other, the third footrest 230 returns to the vertical state by its own weight But operates in a manner of returning in conjunction with the backward movement of the movement guide 430, so that a more stable operation structure can be achieved.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: support case 110: support frame
120: inner plate 121: guide hole
210: first scaffold 220: second scaffold
230: third foot plate 300: main driving part
310: drive motor 320: movable block module
321: movable block 322: guide frame
325: screw rod 330: link module
331: connecting plate 333: link plate
400: sub-driver 410: fixed frame
420: Pneumatic cylinder 430: Moving guide
432: guide roller 440: guide rail
450: connection block

Claims (8)

A step-by-step movable footrest device for a vehicle, which is installed at a doorway of a vehicle so that passengers can easily get on and off,
Two support cases mounted on an entrance of a vehicle and spaced apart from each other in parallel; A first footrest disposed between the two support cases and having an upper end rotatably coupled to the support case about a first horizontal axis; A second footrest which is rotatably coupled to the lower end of the first footrest around a second horizontal axis, and which is disposed in a horizontal state; A third footrest having an upper end rotatably coupled to the other end of the second footrest about a third horizontal axis; And a main driving unit for vertically curving the second footrest so that the second horizontal axis moves along an arc path centered on the first horizontal axis, wherein the first footrest comprises an upper curve of the second footrest, The first and second footrests are rotated about the first horizontal axis according to the movement and are in a horizontal state flush with the second footrests or in a perpendicular state perpendicular to the second footrests,
The support case includes a support frame forming an outer frame; And an inner plate and an outer plate that are respectively coupled to inner and outer surfaces of the support frame, wherein the main drive unit is disposed in the inner space of the support case, and the inner plate is provided with And guide holes are formed along curved pathways of the second horizontal axis and the third horizontal axis.
delete The method according to claim 1,
The main drive unit
A drive motor;
A movable block module including a movable block linearly moved by driving the driving motor; And
And a link module connected to the movable block and the second foot plate such that the second foot plate interlocks with the movement of the movable block,
Wherein the stepped straddle-type movable straddle-type footrest device comprises:
The method of claim 3,
The movable block module
A guide frame having one end rotatably coupled to the inside of the support case; And
A screw rod rotatably coupled to the guide frame about a longitudinal axis of rotation so as to be rotatable by the drive motor,
Wherein the movable block is linearly moved along the screw rod as the screw rod is rotated, and the linear motion path is guided by the guide frame. Movable footrest device.
5. The method of claim 4,
The link module
A connecting plate having one side rotatably coupled to the second scaffold and the other side rotatably coupled to the movable block; And
A link plate having one end rotatably coupled to the connection plate and the other end rotatably coupled to the support case,
Wherein the step-like movable stepping device comprises:
6. The method according to any one of claims 1 to 5,
Further comprising a sub-driver coupled to the second foot so as to move integrally with the second foot, and rotationally driving the third foot on the third horizontal axis,
Wherein the third footrest is in a horizontal state flush with the second footstep or in a perpendicular state perpendicular to the second footstep in accordance with the operation of the sub-driving unit.
The method according to claim 6,
The sub-
A fixing frame coupled to a lower portion of the second footrest;
A pneumatic cylinder coupled to the fixed frame and operated through air pressure; And
And a moving guide that linearly moves by the operation of the pneumatic cylinder
And the third footrest is pivoted about the third horizontal axis in accordance with the linear movement of the movement guide.
8. The method of claim 7,
A guide rail is mounted on the fixed frame,
Wherein the moving guide is installed at one side with a guide roller inserted and guided by the guide rail, so that the linear moving path is guided.

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