WO2021125368A1

WO2021125368A1 - Slide-type vehicle boarding assistance apparatus

Info

Publication number: WO2021125368A1
Application number: PCT/KR2019/017802
Authority: WO
Inventors: 김기현; 신후상; 유성민
Original assignee: 황성공업 주식회사
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2021-06-24
Also published as: KR102320721B1; KR20210076403A

Abstract

The present invention relates to a slide-type vehicle boarding assistance apparatus, which reduces the installation cost and facilitates maintenance by means of a simple configuration that minimizes the number of parts, results in less vibration or noise by means of a sliding operation of a platform that is made stably without shaking, and makes it possible to retract the platform by a simple manual operation in case of an emergency where driving by a driving motor is difficult.

Description

Slide type vehicle boarding aids

The present invention relates to a vehicle boarding assistance device, and in particular, to reduce installation costs and facilitate maintenance by a simple configuration with a minimum number of parts, as well as stable sliding operation of the footrest without shaking, thereby generating vibration or noise The present invention relates to a slide-type vehicle boarding assist device that allows the footrest to be retracted by a simple manual operation in an emergency when it is difficult to drive by a driving motor.

In general, a multi-seater vehicle such as a bus or a van has a high body, which causes inconvenience to users when getting on and off, as well as a high risk of safety accidents, requiring considerable attention.

In particular, there is a problem in that it is difficult for the disabled using a wheelchair, passengers who get on and off with a stroller, the elderly, etc., up and down the stairs provided in the vehicle.

1 is a view showing a vehicle to which a vehicle boarding assistance device according to the prior art is employed. As shown in FIG. 1 , in order for a disabled person using a wheelchair 3 to board a vehicle 2 , a vehicle boarding assistance device 1 from which a footrest is withdrawn or retracted is mounted on the vehicle and used.

On the other hand, the conventional vehicle boarding assistance device (1) is largely divided into a manual type and an automatic type according to the withdrawal or retraction of the footrest. In most European countries, the manual type is mainly used, and in Korea including the United States, the automatic type is mainly supplied. It is becoming.

However, although the conventional vehicle boarding assistance device 1 has the advantage of being very easy to operate, there is a problem in that it is very difficult to maintain due to a malfunction. In addition, the conventional vehicle boarding assistance device 1 has a problem in that the configuration of the device is very complicated, and the installation cost is increased.

In addition, the sliding operation of the footrest was unstable, causing noise and vibration in many cases, and when it was difficult to drive by the driving motor, there was a problem in that the movement of the vehicle was difficult.

Accordingly, the present invention has been proposed to solve the problems of the related art as described above, and an object of the present invention is to reduce installation costs and facilitate maintenance by a simple configuration that minimizes the number of parts. The purpose of this is to provide a slide-type vehicle boarding assistance device that enables the sliding operation of the vehicle to be stable without shaking, resulting in less vibration or noise, and allowing the footrest to be retracted by simple manual operation in an emergency that is difficult to drive by the drive motor. .

In order to achieve the above object, there is provided a vehicle boarding assistance device according to the technical idea of the present invention, a vehicle boarding assistance device installed under an entrance door of a vehicle to assist a passenger in boarding, comprising: a main body casing having an open doorway; a slide frame provided with wheels at both ends to slide forward and backward in the main body casing; a footrest coupled to the slide frame, moving together, and drawn out through the doorway of the main body casing when advancing so that the front end is landed on the ground and retracted into the main body casing when retreating; a driving motor for providing power for moving the slide frame forward and backward; and a driving gear installed at the rear end of the main body casing to rotate by receiving power from the driving motor, a driven gear installed at the front end of the main body casing, and the drive gear and the driven gear connected to form a track to form the track It is characterized in its technical configuration to include a power transmission system consisting of a chain that circulates along and moves the slide frame forward and backward.

Here, a pair of guide modules are further installed on the left end and right end of the front side of the main casing to guide the side end of the footrest in contact with each other when the footrest advances and retreats, and the guide module is the left end of the main body casing. and a pair of module bodies fixed to one point on the right end, respectively, installed so as to be rotatable on a horizontal rotation shaft installed on the module body, and supporting the upper and lower surfaces of the side ends of the footrest in contact with the upper surface to prevent vertical shaking of the footrest A roller and a lower roller, and a side roller that is rotatably installed on a vertical rotation shaft installed on the module body and supports the side end of the footrest by contacting and supporting the side end of the footrest, characterized in that it is provided with a side roller that prevents left and right shaking of the footrest. can do.

In addition, the module body of the guide module is partially recessed into one surface to provide a space in which the side roller is installed, and an upper part in which the upper roller and the lower roller are installed by protruding at a space apart from each other in the upper part and the lower part of the one surface. It may be characterized by having a protrusion and a lower protrusion.

In addition, the auxiliary gear meshed with the driving gear or the driven gear, and an operation bolt having a lower end coupled to the center of the auxiliary gear and having a wrench groove formed on the upper end head, the slide frame and It may be characterized in that the footrest can be moved.

In addition, a guide member is installed at both ends of the main body casing long in the longitudinal direction to guide the wheel of the slide frame, and the guide member is drawn in corresponding to the circumferential groove formed on the outer circumferential surface of the wheel from upper and lower sides. It may be characterized in that it is provided with a rail having a triangular protrusion cross-section to prevent the wheel from deviate from the path, and to prevent foreign substances from sticking between the wheel and the rail.

In addition, it may be characterized in that a line-type detection module installed along the front end of the footrest to detect contact with a front obstacle is installed.

In addition, the sensing module is formed as a hollow body installed in a shape wrapped around the tip side along the tip side of the footrest, and a tube member having a line-shaped fitting protrusion protruding along the longitudinal direction on the outside of the body; , is installed inside the tube member and consists of a detection sensor that detects when the tube member is pressed in contact with an obstacle and generates an electric signal, and the fitting protrusion is fitted and fixed to the mold at the tip of the footrest. It may be characterized in that it is formed.

In addition, a support plate installed across the main body casing, a V-shaped link hinged to a nearby point where the chain passes from the support plate, and a V-shaped link installed at one end of the link to pull the chain in a meshed state It may further include a tension adjusting member made of a tension adjusting gear for imparting tension to the chain, and a spring installed on the support plate to pull the other end of the link.

The vehicle boarding assistance device according to the present invention is designed to reduce installation costs and facilitate maintenance by a simple configuration that minimizes the number of parts.

In addition, the present invention minimizes vibration or noise generation during sliding of the footrest by the stable support for supporting both ends of the footrest at three points, respectively.

In addition, the present invention solves the problem of inconvenience in moving the vehicle by making it possible to retract the footrest by a simple manual operation in an emergency in which driving by the driving motor is difficult.

1 is a reference view for explaining a vehicle boarding assistance device according to the prior art;

2 is a top perspective view of a vehicle boarding assistance device according to an embodiment of the present invention;

3 is a bottom perspective view of a vehicle boarding assistance device according to an embodiment of the present invention;

4 is a reference view of a state in which the upper surface of the main casing is opened to explain the configuration of the vehicle boarding assistance device according to the embodiment of the present invention;

5 is a partial cross-sectional view for explaining the configuration of a guide member and a guide module in the vehicle boarding assistance device according to an embodiment of the present invention;

6 is a perspective view of a guide module in the vehicle boarding assistance device according to an embodiment of the present invention;

7 is a reference view for explaining a configuration for manual operation for moving the slide frame and the footrest without operation of the driving motor in the vehicle boarding assistance device according to the embodiment of the present invention;

8 is a reference view for explaining a detection module installed at the front end of the footrest in the vehicle boarding assistance device according to the embodiment of the present invention.

9 is a partial cross-sectional view for explaining the configuration of a sensing module installed at the tip of the footrest in the vehicle boarding assistance device according to the embodiment of the present invention;

10 is a configuration diagram for explaining a tension adjusting member in the vehicle boarding assistance device according to an embodiment of the present invention;

110: body casing 120: slide frame

130: footrest 140: guide member

150: guide module 161: drive motor

162: drive gear 163: driven gear

164: chain 165: auxiliary gear

166: operation bolt 170: detection module

180: tension control member

With reference to the accompanying drawings, it will be described in detail with respect to the vehicle boarding assistance apparatus according to embodiments of the present invention. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the dimensions of the structures are enlarged than actual for clarity of the present invention, or shown reduced from reality in order to understand the schematic configuration.

Also, terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

2 and 3 are a top perspective view and a bottom perspective view of a vehicle boarding assistance device according to an embodiment of the present invention, and FIG. 4 is an upper surface of the body casing to explain the configuration of the vehicle boarding assistance device according to an embodiment of the present invention. It is a reference diagram in an open state. And Figure 5 is a partial cross-sectional view for explaining the configuration of the guide member and the guide module in the vehicle boarding assistance device according to an embodiment of the present invention.

As shown, the vehicle boarding assistance device according to an embodiment of the present invention includes a body casing 110 , a slide frame 120 , a footrest 130 , a guide member 140 , a guide module 150 , a power transmission system, The sensing module 170 and the tension adjusting member 180 are included as main components.

The boarding assistance device for a vehicle according to an embodiment of the present invention reduces installation costs and facilitates maintenance by a simple configuration that minimizes the number of parts by the above main components, as well as a sliding operation of the footrest 130 By this multi-point support structure, it is made stably without shaking, so that vibration or noise is small, and in an emergency when driving by the driving motor 161 is difficult, it is configured to allow the footrest 130 to be drawn in by a simple manual operation.

Hereinafter, a vehicle boarding assistance device according to an embodiment of the present invention will be described in detail with reference to each of the above components.

The main body casing 110 is formed in the shape of a flat square box having an entrance with an open front so that it can be embedded under the door of the vehicle.

The slide frame 120 is installed so as to slide forward and backward in the main body casing 110 in the front-rear direction. Wheels 122 for rolling are provided at both ends of the body frame 121 of the slide frame 120 to smoothly slide along the

rails

140a and 140b. A circumferential groove 122a into which a portion of the

rails

140a and 140b is introduced is formed along the circumferential direction on the outer peripheral surface of the wheel 122 to safely move along the

rails

140a and 140b without departing from the path. Here, the slide frame 120 is coupled to a point of the chain 164 that circulates along the track and moves forward and backward in the forward and backward directions in the form of being dragged by the chain 164 .

The footrest 130 is coupled to the slide frame 120 and moves together, and is drawn out through the doorway of the main casing 110 when advancing, so that the front end lands on the ground and retracts into the main casing 110 when retreating. When the footrest 130 is withdrawn from the main body casing 110, the front end thereof is naturally landed on the ground to form an inclined surface between the slide frame 120 and the footrest 130. It is connected by a member that allows angle conversion of each other. do. The peripheral portion of the footrest 130 is molded 131 with a material such as rubber or urethane to block noise and vibration.

The power transmission system transmits power from the driving motor 161 to the slide frame 120 to enable the slide frame 120 to move forward and backward. To this end, the power transmission system includes a driving gear 162 installed at the rear end of the main body casing 110 to receive power from a driving motor 161 to rotate, and a driven gear installed at the front end of the main body casing 110 ( 163), and a chain 164 that connects the driving gear 162 and the driven gear 163 to form a track and circulates along the track to drag the slide frame 120 forward and backward. As described above, the power transmission system using the driving gear 162, the driven gear 163, and the chain 164 is useful for converting the rotational force of the driving motor 161 into a wide range of linear motion with only a relatively simple configuration. It is advantageous to apply to vehicle boarding aids.

On the other hand, in the power transmission system, the auxiliary gear 165 meshed with the driving gear 162 or the driven gear 163 in case of a failure, the lower end is coupled to the center of the auxiliary gear 615, and a wrench is attached to the upper end head It further includes an operation bolt 166 having a groove 166a. Accordingly, it is possible to move the slide frame 120 and the footrest 130 manually without the operation of the driving motor 161 . Therefore, it is possible to prevent the occurrence of a situation in which the footrest 130 is not drawn into the body casing 110 and thus the vehicle cannot be moved.

The guide member 140 is installed at both ends of the main body casing 110 in the longitudinal direction to guide the wheel 122 of the slide frame 120 . To this end, the guide member 140 is formed to have a U-shaped cross section as shown in FIG. 5 , and a triangular protrusion that is drawn in corresponding to the circumferential groove 122a formed on the outer peripheral surface of the wheel 122 from the upper and lower sides. It has

rails

140a and 140b of cross-section. As a result, the wheel 122 of the slide frame 120 can be restrained so as not to deviate from the path, and in particular, since the

rails

140a and 140b are formed in a triangular protrusion cross-section having an inclined surface, the wheel 122 and the

rails

140a and 140b) It is possible to effectively prevent the chronic problem of sticking with foreign substances between them.

The guide module 150 is installed in a pair at the left end and right end of the front side of the main body casing 110 and serves to contact and guide the side end when the footrest 130 advances and retreats. The guide module 150 includes a module body 151 having a unique shape, an upper roller 152 and a lower roller installed on the module body 151 to stably support both ends of the footrest 130 at three points, respectively. 153 and side rollers 154 .

Here, the module body 151 of the guide module 150 is partially recessed into one surface to provide a space in which the side roller 154 is installed, and a recessed groove 151d is provided, and a space 151a is spaced apart from each other in the upper and lower portions of the one surface. ) has an upper protrusion (151b) and a lower protrusion (151c) protruding with the upper roller 152 and the lower roller 153 installed therein. The separation space 151a between the upper protrusion 151b and the lower protrusion 151c allows the side end of the footrest 130 to be partially retracted, so that the side end of the footrest 130 and the side roller 154 without interference. It plays an important role in encouraging contact.

The upper roller 152 and the lower roller 153 of the guide module 150 are rotatably installed on the horizontal rotation shaft installed on the upper protrusion 151b and the lower protrusion 151c of the module body 151 so as to be rotatable in the footrest ( 130) in contact with the upper and lower surfaces of the side ends. As a result, vertical shaking of the footrest 130 can be prevented. The side roller 154 of the guide module 150 is rotatably installed on a vertical rotation shaft installed in the concave groove 151d of the module body 151 and contacts and supports the side end of the side end of the footrest 130 . This effectively prevents the left and right shaking of the footrest 130 . As such, when both ends of the scaffold 130 are supported at three points by the upper roller 152, the lower roller 153, and the side roller 154, noise and vibration are effectively suppressed during movement of the scaffold 130. thing becomes possible

The detection module 170 is installed along the tip side of the footrest 130 to detect a front obstacle, thereby preventing a safety accident. To this end, the detection module 170 is a hollow accommodating the detection sensor 171 for installation and protection of the line type detection sensor 171 and the detection sensor 171 as shown in FIGS. 8 and 9 . It is formed as a body of the body and consists of a tube member 172 having an L-shaped cross-section fitting projection (172b) protruding along the longitudinal direction on one side of the body. According to the configuration of the tube member 172, a fitting groove 111a into which the fitting protrusion 172b is fitted and fixed is formed in the mold 111 at the tip of the footrest 130. As a result, the detection module 170 can be easily installed, and a detection function according to the contact of an obstacle is possible for the entire tip side of the footrest 130, which helps to effectively prevent a safety accident. Here, the detection sensor 171 may be a line-type sensor capable of generating an electrical signal by contact pressure, but detects a change in air pressure that occurs when the tube member 172 is in contact to prevent collision with an obstacle. It may be installed as an air pressure sensor 171 to detect. When installed as the air pressure sensor 171 as described above, one end of the hollow of the tube member 172 is blocked and the air pressure sensor 171 is simply installed on the other end of the tube member 172 .

The tension adjusting member 180 prevents the chain 164 for power transmission from sagging, thereby preventing vibration and noise. To this end, the tension adjusting member 180 is hinged at a nearby point where the support plate 181 is installed across the body casing 110 and the chain 164 passes from the support plate 181 as shown in FIG. 10 . (182a) a V-shaped link 182 installed in a combined form, and a tension that is installed at one end of the link 182 to apply tension to the chain 164 while pulling the chain 164 in a meshed state It consists of a gear 184 for adjustment, and a spring 183 installed on the support plate 181 and pulling the other end of the link 182 . It is preferable in terms of installation that the tension adjusting member is provided as a module in which a link 182, a tension adjusting gear 184, and a spring 183 are combined with the support plate 181 as a center.

Although preferred embodiments of the present invention have been described above, various changes, modifications and equivalents may be used in the present invention. It is clear that the present invention can be equally applied by appropriately modifying the above embodiments. Accordingly, the above description is not intended to limit the scope of the present invention, which is defined by the limits of the following claims.

Claims

As a vehicle boarding assistance device installed under the door of the vehicle to assist passengers in boarding,

a main body casing having a front opening;

a slide frame provided with wheels at both ends to slide forward and backward in the main body casing;

a footrest coupled to the slide frame, moving together, and drawn out through the doorway of the main body casing when advancing so that the front end is landed on the ground and retracted into the main body casing when retreating;

a driving motor for providing power for moving the slide frame forward and backward; and

A driving gear installed at the rear end of the main casing and rotating by receiving power from the driving motor, a driven gear installed at the front end of the main casing, and the drive gear and the driven gear are connected to form a track to form the track A vehicle boarding assistance device, characterized in that it has a power transmission system consisting of a chain for moving the slide frame forward and backward while circulating along it.
According to claim 1,

A pair of guide modules are further installed at the left and right ends of the front side of the main body casing to guide the side ends of the footrest in contact with each other when the footrest advances and retreats, and the guide module includes the left end and the right side of the main body casing. A pair of module bodies each fixed to one end point, an upper roller that is rotatably installed on a horizontal rotation shaft installed on the module body and supports the upper and lower surfaces of the side ends of the footrest while contacting and supporting the upper and lower rollers of the footrest and A vehicle characterized in that it is provided with a lower roller and a side roller that is rotatably installed on the vertical rotation shaft installed on the module body and prevents the left and right shaking of the footrest while contacting and supporting the side end of the footrest. boarding aids.
3. The method of claim 2,

The module body of the guide module is partially recessed into one surface to provide a space in which the side roller is installed, and an upper protrusion in which an upper roller and a lower roller are installed by protruding from the upper and lower portions of one surface at a space apart from each other, and A vehicle boarding assistance device comprising a lower protrusion.
According to claim 1,

The auxiliary gear meshed with the driving gear or the driven gear, and an operation bolt having a lower end coupled to the center of the auxiliary gear and having a wrench groove formed on the upper end of the head, the slide frame and the footrest through manual operation without the operation of the drive motor A vehicle boarding assistance device, characterized in that it can be moved.
According to claim 1,

A guide member is installed at both ends of the main body casing to guide the wheel of the slide frame, which is installed long in the longitudinal direction, and the guide member is a triangle that is drawn in corresponding to the circumferential groove formed on the outer circumferential surface of the wheel from upper and lower sides. A vehicle boarding assistance device comprising a rail having a protruding cross section to prevent the wheel from deviate from a path, and to prevent foreign substances from being stuck between the wheel and the rail.
According to claim 1,

A boarding assistance device for a vehicle, characterized in that a line-type detection module is installed along the front end of the footrest to detect contact with a front obstacle.
7. The method of claim 6,

The sensing module is formed as a hollow body installed in a shape wrapped around the tip of the footrest to the edge of the tip, and a tube member having a line-shaped fitting protrusion protruding in the longitudinal direction on the outside of the body; It consists of a detection sensor that is installed inside the tube member and detects when the tube member is pressed in contact with an obstacle and generates an electrical signal,

A vehicle boarding assistance device, characterized in that a fitting groove is formed in the mold at the distal end of the footrest by which the fitting protrusion is fitted and fixed.
According to claim 1,

A support plate installed across the main body casing, a V-shaped link hinged to a point adjacent to which the chain passes on the support plate, and the chain installed at one end of the link while pulling the chain in a meshed state The vehicle boarding assistance device, characterized in that it further comprises a tension adjustment member in the form of a module consisting of a tension adjustment gear for imparting tension to the support plate, and a spring installed on the support plate to pull the other end of the link.