KR102573554B1 - Safety footrest for subway screen door and screen door system having the same - Google Patents

Abstract

The present invention relates to a safety foothold device for subway screen doors and a screen door system including the same. A safety scaffolding device for a subway screen door according to an embodiment of the present invention includes: a safety scaffold positioned below the screen door, fixed to one side of a platform where trains enter, and rotated around a hinge; and a driving unit coupled to the sliding door of the screen door, interlocked according to the sliding motion of the sliding door, and having an inclined lifting unit that protrudes toward the safety footrest and slides in contact with the bottom of the side end of the safety footboard. In a state in which the inclined lifting portion of the driving unit is separated from each other, an unfolded state in which the safety footrest rotates toward the ground is induced, and the inclined lifting unit of the driving unit contacts the bottom of the side end of the safety footrest while moving the safety footrest to the ground. The folded state is induced by turning toward the sliding door and lifting it up.

Description

Safety footrest for subway screen door and screen door system including the same {Safety footrest for subway screen door and screen door system having the same}

The present invention relates to a subway safety device, and more particularly, to a safety foothold device for a subway screen door and a screen door system including the same.

The distance between the subway platform and the train is operated to maintain a distance of at least 5 cm according to strict regulations. In fact, the distance between the platform and the train is 10 cm to 25 cm for each platform due to differences in different standards, such as the curved section of the platform. am. Since the distance between the platform and the train is wide, when passengers get on and off the train, passengers' feet fall out, the wheels of the stroller fall out, or belongings such as mobile phones fall out of the gap between the platform and the train when getting on and off the train. Accidents happen frequently.

As an alternative to these accidents, various measures such as detection devices, management personnel input, and safety scaffold installation are required, but in the case of the detection device and management personnel input, it is a high-cost measure and requires expertise, There is a problem that the accident rate cannot be reduced because it is more like an after-the-fact countermeasure in that it detects the problem after it has occurred and solves the problem rather than a countermeasure.

In addition, in the case of the safety scaffold, a fixed safety scaffold in which a scaffold such as a rubber scaffold is fixed to a side wall of a platform, and an automatic safety scaffold such that the scaffold protrudes in the direction of the train and retreats in the direction of the platform according to the opening and closing of the screen door. However, portable safety scaffolds are being piloted and distributed. However, in the case of the fixed safety scaffold, it is difficult to withstand the load of passengers due to its weak strength, and may affect the damage of the train.

In addition, the automatic safety scaffold has a problem of not only safety verification problem due to low strength, but also a high installation cost problem, and in the case of a portable safety scaffold, there is a problem of always requiring a need.

Korean Registered Patent Publication No. 10-0918674 "Safe platform for subway platforms"

The technical problem to be achieved by the present invention is safety for subway screen doors that do not require a separate power source, can be driven without power, and can prevent passengers' feet, strollers, and bicycle wheels from falling between a platform and a train. To provide a scaffolding device.

In addition, to provide a safety scaffolding device for a subway screen door that has a simple structure, can be manufactured at low cost, and can be easily installed and used because it is easy to repair and operate by non-professionals.

In addition, it is to provide a safety footrest device for a subway screen door that can prevent damage due to collision with a train by performing a folding or unfolding operation of the safety footplate according to the opening and closing of the screen door.

In addition, to provide a safety scaffolding device for a subway screen door that can prevent a safety accident from occurring due to excessive rotation of the unfolded safety scaffold downward due to the load of a large number of users and stably support the load of users.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to one embodiment of the present invention for solving the above technical problem, a safety footrest located below the screen door, coupled and fixed to one side of the platform where the train enters, and rotated around the hinge; and a driving unit coupled to the sliding door of the screen door, interlocked according to the sliding motion of the sliding door, protruding toward the safety footrest, and having an inclined lifting unit sliding in contact with the lower side end of the safety footboard. In this case, in a state in which the safety footrest and the inclined lifting unit of the driving unit are separated from each other, an unfolded state in which the safety footrest rotates toward the ground is induced, and the inclined lifting unit of the driving unit contacts the side end bottom of the safety footrest while , a folded state may be induced by rotating and lifting the safety scaffold toward the sliding door.

In one embodiment, the driving unit may be coupled and fixed to the lower front surface of the screen door. The hinge may be fixed to the front of the platform, and the safety footrest may include a fixed panel supporting the hinge below the hinge.

In one embodiment, the safety footrest may include an extension footrest that can move and protrude toward the front side along the upper surface of the safety footrest. The longitudinal width and horizontal width of the extension scaffold may be smaller than the longitudinal width and horizontal width of the safety scaffold.

In one embodiment, a side end of the safety scaffold may be provided with a first curved surface curved upward. The protruding width and degree of curvature of the first curved surface may increase toward the front side of the safety footrest.

In one embodiment, the drive unit further includes a coupling portion coupled to a lower end of the screen door, and the inclined lifting portion includes a protruding surface perpendicular to a side end of the coupling portion facing the safety footrest and protruding toward the front side; and an inclined surface protruding from the front side of the protruding surface toward the safety scaffold, protruding with an inclined upper end and lower lower end, and forming an inclined surface on the upper surface by contacting the upper end and lower end of the protruding end.

In one embodiment, the protruding width of the protruding surface may be greater than the thickness of the safety footrest. A second curved surface curved toward the front side is formed at an upper end of the inclined surface, and the protruding width and degree of bending of the second curved surface may increase toward the safety footrest.

The safety footrest device has a right-angled bent shape at the lower side of the safety footrest, and at least one or more stoppers for maintaining the safety footrest in a horizontal state on the ground by being in close contact with the lower surface of the safety footrest, which is lowered and rotated to the upper surface can do. The stopper is formed on the lower side of the safety footrest, a first stopper installed with a vertically bent inner side facing the front side; Alternatively, a second stopper may be formed on the outside of the side end of the safety footrest, the side of which is coupled and fixed to the front of the platform, and the lower surface of the safety footboard rotated to the upper surface is closely attached to the second stopper.

In one embodiment, the second stopper may have a hinge inlet groove in which an upper surface coupled to the front of the platform is recessed toward the stopper, and the hinge may be inserted into the hinge inlet groove.

In one embodiment, a weight is provided on the lower surface of the front end of the safety footrest, and the weight can apply a load to the lower surface of the safety footboard so that the safety footboard rotates downward when the screen door is opened. An elastic member having an elastic force is further provided at the center of the lower surface of the safety footrest, and the elastic member can rotate the safety footrest downward by an elastic restoring force. In one embodiment, the safety footrest may further include a bent part extending along the length direction of the safety footrest.

In addition, a screen door system for solving the other technical problem is a screen door system including the above-described safety footrest device.

According to one embodiment of the present invention, a subway screen door that does not require a separate power supply source, can be driven without power, and can prevent passengers' feet, strollers, and bicycle wheels from falling between a platform and a train. A safety footrest device may be provided.

In addition, according to one embodiment of the present invention, a safety foothold device for a subway screen door that has a simple structure, can be manufactured at low cost, and can be easily installed and used because it is easy to repair and operate by non-professionals can be provided. .

In addition, a safety footrest device for a subway screen door capable of preventing damage due to collision with a train can be provided by performing a folding or unfolding operation of the safety footplate according to the opening and closing of the screen door.

In addition, a safety footrest device for subway screen doors that can prevent a safety accident from occurring due to excessive rotation of the unfolded safety footplate downward due to the load of a large number of users and stably support the load of users can be provided. .

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1A and 1B are perspective views of a safety scaffolding device for a subway screen door according to an embodiment of the present invention, respectively.
2a to 2c are partial enlarged views of the safety scaffold 100 according to an embodiment of the present invention.
3a and 3b are perspective views of a safety scaffold 100 according to another embodiment of the present invention.
Figure 4a is a perspective view of the driving unit according to an embodiment of the present invention, Figure 4b is a front view of the driving unit according to an embodiment of the present invention.
5a and 5b are perspective views of a safety scaffold according to another embodiment of the present invention.
6A and 6B are perspective views illustrating a driving unit according to another embodiment of the present invention.
7 is a perspective view for explaining the driving operation of the safety scaffold.
8 illustrates first or second stoppers according to various embodiments of the present invention.
9a and 9b are side views illustrating installation examples of a first stopper according to an embodiment of the present invention.
10 is a perspective view illustrating an installation example of a second stopper according to an embodiment of the present invention.
11 is a perspective view showing a safety scaffold having a weight according to an embodiment of the present invention.
12 is a perspective view showing a safety scaffold having an elastic member according to an embodiment of the present invention.
13 is a flowchart illustrating an operation example of a safety foothold device for a subway screen door according to an embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, embodiments of the present invention are described with reference to drawings schematically showing ideal embodiments of the present invention. In the drawings, for example, the size and shape of members may be exaggerated for convenience and clarity of explanation, and deformations of the illustrated shapes may be expected in actual implementation. Accordingly, embodiments of the present invention should not be construed as being limited to the specific shapes of members or regions shown herein.

In the following embodiments, for example, words such as bottom, rear, bottom, and front are expressed in a state in which the safety footrest device 1 shown in FIG. 1 is unfolded parallel to the ground and perpendicular to the screen door 2 The front of the safety footrest device 1 is taken as a reference as the front.

1A and 1B are perspective views of a safety foothold device 1 for subway screen doors according to an embodiment of the present invention, respectively.

Referring to FIGS. 1A and 1B , a safety footrest device 1 according to an embodiment of the present invention includes a safety footrest 100 and a driving unit 200 . In the following embodiments, the safety footrest device 1 and the screen door 1000 are collectively referred to as a screen door system. After the train enters the platform and stops, the sliding door 1002 of the screen door 1000 may be opened before the doorway of the train is opened for passengers to get on and off, and may be closed later. Since the sliding door 1002 opens ahead of the entrance and exit of the train and closes after the entrance, safety when passengers get on and off can be guaranteed.

The safety scaffold 100 is located on the lower side of the sliding door 1002 that opens and closes the screen door 1000 on one side of the platform 3 facing the train. The rear surface of the safety scaffold 100 is coupled and fixed to one side of the platform 3 so that the safety scaffold 100 can be rotated around the hinge 101. The hinge 101 may be rotatably fixed to one side of the platform 3 by the fixing member 110, for example, to the side.

The driving unit 200 is coupled to and fixed to the sliding door 1002 of the screen door 1000, and interlocks with the sliding movement of the sliding door 1002. In one embodiment, the driving unit 200 may be coupled and fixed to the lower portion of the sliding door. In one embodiment, the driving unit 200 may be coupled and fixed to only one sliding door 1002 of the sliding doors 1002, as shown in FIGS. 1A and 1B. Even if the drive unit 200 is composed of a single piece, it can be rotated in close contact with the safety footrest 100.

When the width of the safety scaffold 100 is large or the load is large, and the load or external force is excessively driven to the single drive unit 200, the folding operation cannot be easily performed, and the drive unit 200 is coupled and fixed to the sliding door ( An excessive load may be applied to the 1002, causing failure of the sliding door 1002. Therefore, in another embodiment, as will be described later with reference to FIG. 7, driving units 200 are disposed at both ends of the safety scaffold 100, respectively, so that the safety scaffold 100 can stably perform a folding or unfolding operation. and the external force received by the driving unit 200 can be distributed to each sliding door 1002.

As shown in FIG. 1A, when the sliding door 1002 is opened, the driving unit 200 is spaced apart from the safety footrest 100 so that the safety footrest 100 is horizontal to the ground centered on the rear end coupled with the platform 3, that is, the xy plane As it is arranged in a direction parallel to, the safety footrest 100 is located in the gap between the train and the platform 3 so that the passengers of the platform 3 can move to the train while stepping on the safety footboard 100. Hereinafter, in the present specification, as shown in FIG. 1A, a state in which the main surface of the safety footrest 100 is substantially horizontal to the ground, that is, in a direction parallel to the XY plane so that the passenger can move while stepping on it, is safety. This is referred to as the 'extended state' of the footrest.

As shown in FIG. 1B, when the sliding door 1002 is closed, the driving unit 200 fixed at the bottom of the sliding door 1002 is in close contact with the lower surface of the safety footrest 100 and the safety footrest 100 rotates upward, substantially ZX It can remain aligned in a direction parallel to the plane. Hereinafter, in the present specification, as shown in FIG. 1B, the safety footrest 100 is close to the sliding door 1002 in the closed state so that the main surface of the safety footrest 100 is substantially perpendicular to the ground, that is, the ZX plane The state of being arranged in a direction parallel to is referred to as the 'folded state' of the safety scaffold. In a state where the safety scaffold 100 is maintained in a folded state, a collision between the safety scaffold 100 and a moving train can be prevented.

The drive unit 200 protrudes toward the coupling part 201 coupled to the lower end of the sliding door 1002 and the safety footrest 100, and lifts the safety footrest 100 into a folded state while entering toward the bottom of the safety footrest 100. It may include an inclined lifting unit 210 having an inclined surface 210a that can be used. In the unfolded state of the safety scaffold 100, as shown in FIG. 1A, the safety scaffold 100 and the drive unit 200 are completely separated from each other, and in the folded state of the safety scaffold 100, shown in FIG. 1B As described above, the inclined lifting unit 210 rotates and lifts the safety footrest 100 toward the sliding door 1002 while contacting the side end bottom of the safety footrest 100. The driving unit 200 will be described in more detail below with reference to other drawings.

2a to 2c are partial enlarged views of the safety scaffold 100 according to an embodiment of the present invention.

Referring to FIG. 2A, the safety scaffold 100 has a panel shape, and the rear surface of the safety scaffold 100 coupled to one side of the platform 3 has a hinge so that the safety scaffold 100 can be rotated by the drive unit 200. (101) is provided. Therefore, the hinge 101 is coupled and fixed to one side of the platform 3, and the safety footrest 100 can be rotated around the hinge 101, so that the safety footrest 100 is rotated by the drive unit 200 to unfold or Allows folding operations to be performed. The hinge 101 may be fixed by a coupling member 110 such as an anchor embedded and fixed to one side of the platform 3. In one embodiment, the coupling member 110 may have, for example, a coupling portion 110a slidably fastened to the hinge 101 and a support portion 110b fixed to one surface of the platform 3. The support portion 110b may be fixed to one surface of the platform 3 by screwing, riveting, inserting or welding by means of concrete screws, but the present invention is not limited thereto.

In one embodiment, lubricating oil may be applied to the hinge part 101 or a buffer member may be interposed therebetween. The operation of the hinge part 101 can be smoothed by the lubricating oil, and when the load of passengers is applied to the safety footrest 100 in the unfolded state of the safety footrest 100 by the buffer member, the hinge part 101 ) and the load to be applied to the safety scaffold 100 can be buffered to supplement durability. The lubricating oil and the buffer member are non-limiting examples, and may include various types of lubricating oil.

Referring to FIG. 2B, the safety scaffold 100 is coupled to the hinge 101, and a fixed panel 102 coupled to one side of the platform 3, for example, the front side wall of the platform 30, is additionally configured. can In one embodiment, the safety footrest 100, along with the fastening panel 102, may have a butt hinge, lift off hinge, horizontal hinge, piano hinge, concealed cabinet hinge, cylinder hinge, or source hinge structure.

The fixed panel 102 is located on the lower side of the hinge 101 and is coupled to one surface of the platform 3 to stably support the safety scaffold 100 as an anchor of the hinge 101. The fixed panel 102 may have a flat shape that can be interviewed with one side of the platform 3 like the safety scaffold 100 . The fixed panel 102 is tightly coupled and fixed to one surface of the platform 3, and the hinge 101 is coupled and fixed to the top of the fixed panel 102 to distribute the load received by the safety scaffold 100, the safety scaffold The bonding strength between the platform 100 and the platform 3 can be improved. The fixed panel 102 may be fixed to one surface of the platform 3 by various fastening members such as bolts or.

Referring to Figure 2c, in one embodiment, the safety scaffold 100 increases the bending strength of the safety scaffold 100 relative to the Y axis by placing a bend 103 extending along the longitudinal direction, that is, the x direction. can Accordingly, the safety footrest 100 can prevent occurrence of deformation such as distortion induced by a load of a passenger. The bent part 103 may have any shape capable of increasing the cross-sectional area of the YZ plane of the safety scaffold 100, and as illustrated, it has a shape bent convexly downward, that is, in the -Z direction, or the opposite shape. , and two or more such bends 103 may be provided along the Y direction.

3a and 3b are perspective views of a safety scaffold 100 according to another embodiment of the present invention.

Referring to Figure 3a, the safety footrest 100 may be additionally provided with an extension footrest 120 that can move and protrude toward the front side of the safety footrest 100. For each platform (3), the distance between the trains entering the platform (3) is different due to the difference in curvature of the track or the deviation of other construction specifications. If the safety footrest 100 protrudes excessively toward the front side, the front side end of the safety footrest 100 may collide with the train, and since the binding force with the platform 3 decreases toward the front side, it may be difficult to stably support it. On the other hand, when the safety footrest 100 has a small protruding extension width on the front side, in the case of a platform 3 where the distance between the platform 3 and the train is wide, it is difficult for the safety footrest 100 to close all the gaps, and the passenger's feet still fall out. is not resolved

According to one embodiment, the extension scaffold 120 is coupled to the safety scaffold 100 and can move reciprocally in the y direction, thereby changing the extension length of the safety scaffold 100 in the Y direction. In one embodiment, it is formed smaller than the horizontal width and front side protruding width of the safety scaffold 100, and has the same panel shape as the safety scaffold 100. In one embodiment, the extension scaffold 120 may be fastened to the safety scaffold 100 in a stacked state. In addition, in one embodiment, through-holes 121 are formed in the overlapping portions of the safety scaffold 100 and the extension scaffold 120, respectively, and the locking bolt 122 penetrates through the through-hole 1210. It is possible to limit the sliding of the extension scaffold 120 from the safety scaffold 100. In another embodiment, FIG. ) and the second through hole 121 are formed, and the inner spaces of the first through hole 104 and the second through hole 121 are in communication with each other, and the locking bolt 122 is penetrated to the inside of the communication to the safety scaffold. It serves to couple the 100 and the extension scaffold 120.

At this time, the first through hole 104 and the second through hole 121 are not simply formed through a cylindrical shape through which the locking bolt 122 can penetrate, but are extended and recessed toward the front side so that the locking bolt 122 is It may be formed to be movable in the forward and backward directions along the inside of the first through hole 104 and the second through hole 121, but the present invention is not limited thereto.

When the distance between the platform 3 and the train is narrow, the extension footrest 120 is moved to the rear side as shown in FIG. Through this, the width of the footrest on which the passenger steps can be narrowed to match the distance between the platform 3 and the train. On the other hand, when the distance between the platform 3 and the train is wide, referring to FIG. 4B, the extension footrest 120 can be protruded to the front side of the safety footrest 100 as much as possible, and at this time, the locking bolt 122 is The safety scaffold 100 and the extended scaffold 120 are made to be in close contact with the inner surface of the front side of the hole 104 and the inner surface of the rear side of the second through hole 121 so that the extended scaffold 120 can protrude toward the train as much as possible. It is possible to close a wide gap between the platform 3 and the train through.

In one embodiment, the hooking end 123 bent toward the lower side, that is, the side where the safety footrest 100 is provided, is formed at the front end of the extension footrest 120 to prevent the extension footrest 120 from moving excessively rearward. And, the curved inner side of the hooking end 123 is caught on the front of the extension scaffold 120 to move and fix the extension scaffold 120 to the rear side according to the protruding width of the front side of the safety scaffold 100.

In addition, the uppermost and lowermost ends of the locking bolt 122, that is, the ends of the locking bolt 122 protruding outward through the safety footrest 100 and the extension footrest 120 are inside the first and second through holes 104 and 121. It may be designed to be larger than the width so that the locking bolt 122 completely penetrates the inside of the first and second through holes 104 and 121 to prevent separation.

Figure 4a is a perspective view of the driving unit 200 according to an embodiment of the present invention, Figure 4b is a front view of the driving unit 200 according to an embodiment of the present invention.

4A and 4B, the driving unit 200 is coupled and fixed to the lower end of the lower part of the screen door 1002 in the opposite direction to the entrance, and the coupling unit 201 coupled to the lower end of the screen door 1002 and the safety It protrudes toward the scaffold 100 and is composed of an inclined lifting part 210 having an inclination.

In one embodiment, the rear surface of the coupling part 201 may be bonded and fixed to the lower front surface of the screen door 1002 in close contact. For example, the drive unit 200 can be firmly coupled and fixed to the lower end of the screen door 1002 through a separate coupling member such as a bolt through the coupling hole 202 formed through the horizontal direction.

The inclined lifting part 210 is formed at the side end of the side end of the coupling part 201 in the direction where the safety footrest 100 is located, and has a protruding surface 211 protruding toward the front side and a protruding front surface of the protruding surface 211. It may include an inclined surface 212 protruding vertically toward the safety scaffold 100.

The protruding width of the protruding surface 211 is formed so that the safety footrest 100 folded inside can be sufficiently inserted. In one embodiment, the protruding width of the protruding surface 211 is formed larger than the thickness of the safety footrest 100, so that the safety footrest 100 in close contact with the end of the inclined surface 212 is inclined along the slope of the inclined surface 212 (212). ) and the protruding surface 211 so that it can be easily introduced and positioned into the inner space. In this case, the safety footrest 100 is drawn into the inside of the protruding surface 211 and the inclined surface 212 in a folded state, and even if the safety footrest 100 is rotated downward by an external force, the safety footrest 100 on the inclined surface 212 ) is caught and the rotation is restricted inside the protruding width of the protruding surface 211, so as shown in FIG. 5B, when the screen door 1002 is closed, rotation of the screen door 2 toward the train can be prevented. On the contrary, as shown in FIG. 1A, when the screen door 1002 is opened and interlocked with the sliding door 1002 and the drive unit 200 is moved, the safety footrest 100 is rotated downward and the safety footrest ( 100) so that the unfolded state is induced.

The inclined surface 212 extends toward the safety footrest 100. In one embodiment, the sloped surface 212 has a downwardly sloped edge 210a in the X direction for inducing upward rotation of the safety footrest 100 . The beveled edge 210a is illustrated as having a linear downward inclined angle along the X direction in the ZX plane, but the embodiment of the present invention is not limited thereto. For example, the inclined edge 210a may have a convex curved surface in the z-direction, that is, may have a downward slope in a direction in which a negative slope of the slope in the z-direction further increases. In one embodiment, the inclined surface 212 may have a shape with a sharp end in the z direction when viewed from the front side, but the embodiment of the present invention is not limited thereto.

When the sliding door 1002 is closed, the end of the inclined edge 210a enters toward the bottom of the side end of the safety footrest 100, and as the sliding door 1002 moves in the closing direction, the bottom of the side end of the safety footrest 100 is relatively climbed along the inclined edge 210a. Accordingly, the inclined edge 210a gradually rotates the safety footrest 100 upward, leading the safety footrest 100 to a closed state. Conversely, when the sliding door 1002 is opened, the safety footrest 100 rotates downward along the inclination angle of the inclined edge 210a, and the unfolded state of the safety footrest 100 is induced. In one embodiment, a lubricating member (not shown), for example, a ball bearing or a roller, may be installed on the inclined edge 210a to reduce the frictional resistance of the side end bottom of the safety footrest 100 and the oblique direction.

5A and 5B are perspective views of a safety scaffold 100 according to another embodiment of the present invention, FIGS. 6A and 6B are perspective views showing a drive unit 200 according to another embodiment of the present invention, and FIG. 7 is It is a perspective view for explaining the driving operation of the safety scaffold 100.

As described above with reference to Figures 5a and 5b, the safety footrest 100, while the sliding door 1002 moves toward the center of the screen door device 1000 to close the sliding door 1002, safety One side end or both ends of the scaffold 100 is coupled to the lower end of the sliding door 1002, and comes into contact with and adheres to the inclined lifting part 210 of the driving unit 200 interlocked with the sliding door 1002, and the inclined lifting part As the bottom of the safety scaffold 100 is continuously pushed up along the inclined surface 210a of 210, the safety scaffold 100 rotates upward as a whole, and the folded state of the safety scaffold 100 is induced. At this time, noise may occur as the side end of the simple prismatic safety scaffold 100 and the inclined surface 210a of the slope lifting unit 210 of the drive unit 200 rub against each other, and due to frequent use, the safety scaffold 100 The side end and the inclined lifting part 210 of the driving part 200 may be worn or damaged.

In one embodiment, the safety scaffold 100 is shown in FIG. 5A to mitigate or eliminate noise and damage caused by friction between the aforementioned safety scaffold 100 and the inclined lifting unit 210 of the driving unit 200. As such, it may include a first curved surface 110 at the side end. The two-dot chain line shown in FIG. 5A is a bending line for expressing a portion where the curvature of the first curved surface 110 formed integrally with the safety scaffold 100 starts.

The first curved surface 110 is a safety scaffold so that the inclined surface 210a of the inclined tensioning part 210 can be easily and stably rotated upward and folded when the inclined surface 210a is in close contact with the side end of the safety scaffold 100. 100) Safety by reducing or eliminating friction and noise by allowing the bottom of the first curved surface 110 provided at the side end to slide with the inclined surface 210a of the inclined tensioning part 210 by surface contact rather than linear contact. It guides the scaffold 100 to be easily rotated upward, and can prevent deterioration in life of the safety scaffold 100 due to wear.

The first curved surface 110 is formed at the side end of the safety scaffold 100 that comes into close contact with the driving unit 200, and is formed only at one side of the safety scaffold 100 or at both ends depending on the location of the driving unit 200. It can be. In one embodiment, the first curved surface 110 is formed to be bent in the upward direction, that is, the Z direction, along the side end of the safety footrest 100, and is gradually curved upward toward the front side, that is, in the -Y direction. can be formed

According to the embodiment of the present invention, in conjunction with the closing operation of the sliding door 1002 being performed, the driving unit 200 is moved while the inclined surface 210a of the driving unit 200 first contacts the safety scaffold 100. 1 The front side of the curved surface 110, that is, the Y-direction side (the side close to the train) extends and bends most upward, so that the drive unit 200 easily contacts and rubs against the bottom surface of the first curved surface 110. , the safety scaffold 100 can be rotated upward. In one embodiment, the first curved surface 110 has a shape extending from the side end of the safety footrest 100 in the lateral direction, and the width of the side extension gradually widens from the rear to the front side, that is, in the -Y direction. to have a shape. That is, the extension width of the first curved surface 110 to the side gradually expands as the end of the extended side 110 goes from the rear side to the front side, and the degree of upward bending may gradually increase.

Referring to FIGS. 6A and 6B , optionally, in one embodiment, in the inclined lifting unit 210 of the driving unit 200, the inclined edge 210a of the inclined surface 212 forms a second curved surface 213. can include As the sliding door 1002 moves to be closed and the driving unit 200 moves in conjunction therewith, the inclined edge 210a of the driving unit 200 comes into contact with the bottom surface of the safety footrest 100, and at this time, the inclined edge 210a The second curved surface 213 of ) makes surface contact rather than line contact with the first curved surface 110 of the safety scaffold 100, whereby the first curved surface 110 and the second curved surface 213 ), contact and sliding between them can be achieved while suppressing noise and low friction conditions. Accordingly, according to the embodiment of the present invention, deterioration of the life span of the safety footboard device due to friction is prevented, and quiet operation of the safety footboard device 1 in the platform can be promoted.

In one embodiment, the second curved surface 213 is formed to have a shape in which the upper end of the inclined surface 212 is bent toward the front side. The width that is bent and expanded may gradually increase. Therefore, the side end of the second curved surface 213, which first comes into contact with the safety footrest 100, is the most curved, and the area extended to the front side is also formed to be large, so that the side end of the safety footrest 100 can easily slide toward the inside of the inclined surface 212. And the protruding surface 211 is drawn into the inside so that the inner surface of the inclined surface 212 and the lower surface of the safety scaffold 100 can be easily and in close contact with each other, and at this time, the second curved surface 213 is the first curved surface described above While being in close contact with the 110, the driving unit 200 can allow the safety footrest 100 to rotate upward more easily. In another embodiment, the second curved surface 213 may have a circular arc cross section, and may be any curved surface or the surface of a roller capable of dispersing frictional force by increasing the contact area with the lateral lower leg of the safety footrest 100, , the present invention is not limited thereto. In particular, in the case of a roller, the surface on which friction occurs is changed each time the safety footrest is brought into a closed state, thereby extending the life of the inclined edge of the drive unit 200. In one embodiment, the axis of rotation of the roller provided on the inclined edge may extend along the longitudinal direction of the inclined edge or may have an inclined direction perpendicular or non-perpendicular to the inclined edge, and the roller may be a single roller or a plurality of arranged rollers. there is.

Referring to FIG. 7, when a pair of screen doors 1002 maintain a closed state with their sides attached to each other, that is, when a train has not yet entered the track, the driving unit coupled with the lower edge of the screen door 1002 Through 200, the safety scaffold 100 is rotated upward and folded toward one side of the platform 3 so that it can be accommodated and stored inside the drive unit 200. Thereafter, when the train enters the track and stops, and the screen door 1002 is opened for passengers to get on and off, the drive unit 200 interlocks with the screen door 1002 to the side of the safety footrest 100 to open the screen door 1002. While moving with ), the first curved surface 110 formed at the side end of the safety footrest 100 and the second curved surface 213 on the inclined surface 212 of the drive unit 200 come into contact, and the safety footrest 100 is inclined upward. The portion 210 may descend along the slope.

After that, as shown in FIG. 1A, when the screen door 1002 is fully opened and the driving unit 200 is completely separated from the safety footrest 100, the safety footrest 100 is in an unfolded state perpendicular to one surface of the platform 3 It is maintained, and the safety footrest 100 closes the gap between the platform 3 and the train, so that the feet of passengers can be prevented from falling out.

8 shows first or second stoppers 310, 320; 300 according to various embodiments of the present invention, and FIGS. 9A and 9B show installation of the first stopper 310 according to an embodiment of the present invention. It is a side view showing an example, and FIG. 10 is a perspective view showing an installation example of the second stopper 320 according to an embodiment of the present invention.

Referring to FIG. 8 , a stopper 300 provided on one surface side of the platform 3 may be formed below the safety scaffold 100 . When the safety footrest 100 is rotated by the hinge 101, the stopper 300 supports the unfolded state of the safety footrest 100 or limits the rotation range so that the safety footrest 100 can be used in a state parallel to the ground, that is, the passenger can use it with a sense of stability. can do.

The stopper 300 is located on one side of the platform 3 in the unfolded state of the safety scaffold 100 to support the safety scaffold 100 located on the upper side, and the load received by the safety scaffold 100 is transferred to the safety scaffold 100. By distributing it over the entire surface, the safety footrest 100 can firmly support the load of passengers. Since the stopper 300 supports the safety footrest 100, the supporting force of the safety footrest 100 is improved, so that the passenger does not feel anxious even when stepping on the safety footrest 100, and thus a better sense of security can be provided to the passenger.

The stopper 300 may include a first stopper 310 coupled to the platform 3 or the fixed panel 102 depending on the installation location and shape. In another embodiment, the stopper 300 may include a second stopper 320 located at the side end of the safety footrest 100. In another embodiment, the stopper 300 may include both the first stopper 310 and the second stopper 320 .

Referring to FIG. 9A , the first stopper 310 may illustratively have a right-angled bent shape (or 'L' shape). In another example, any shape capable of maintaining the upper surface of the expanded safety scaffold 100' and the surface of the platform 30 to have the same horizontal level by limiting the rotation of the expanded safety scaffold 100' can have In one embodiment, when the safety footrest 100 rotates in the direction of the arrow, the upper surface of the first stopper 310 contacts the lower surface of the safety footrest 100' in an unfolded state, so that the safety footrest 100' is leveled. to keep The upper surface of the safety scaffold 100' in the unfolded state and the surface of the platform 3 may have the same horizontal level, and the first stopper 310 is the safety scaffold 100 in the unfolded state with respect to the surface of the platform 3 ') to have the same horizontal level stably.

In addition, the rear surface of the first stopper 310 may be bonded and fixed to the side of the platform 3 located below the safety footrest 100. In one embodiment, when the fixed panel 102 is provided, the rear surface of the first stopper 310 may be coupled and fixed to the front of the fixed panel 102 . The first stopper 310 has an upper surface extending perpendicularly to the front side of the upper end of the coupled rear surface, and the lower surface of the safety footrest 100 rotated to this upper surface is in close contact so that the first stopper 310 is the safety footrest 100 ) and prevent further rotation to the lower side.

In another embodiment, referring to FIG. 9B, the upper surface of the first stopper 310 'is directly coupled and fixed to the lower surface of the safety footrest 100, and the safety footrest 100 is in a folded state by the drive unit 200. Another part of 1 stopper 310' may protrude to the side where the train enters. When the screen door 1002 is opened later and the safety scaffold 100 rotates downward as indicated by the arrow, the first stopper 310 directly fixed to the bottom surface of the safety scaffold 100 also rotates. The rear surface 310s of the first stopper 310 is in close contact with one surface of the platform 3 or the front surface of the fixed panel 102 to prevent the unfolded safety footrest 100' from further rotating downward, and It can support the safety scaffold 100 'of.

Referring to FIG. 10 , the second stopper 320 according to another embodiment of the present invention may also have a right angle bent shape. The vertically bent inner side of the second stopper 320 is installed toward the safety scaffold 100 side. A part of the rear side of the upper surface of the second stopper 320, where the hinge 101 of the safety footrest 100 is located, has a hinge inlet groove 321 into which the hinge 101 can be inserted, and a hinge inlet groove ( 321) With the hinge 101 positioned inside, the safety footrest 100 is rotated so that when the safety footrest 100 descends, it can be fixed and supported in close contact with the upper surface of the second stopper 320.

Therefore, the safety footrest 100 is excessively lowered and rotated through the stopper 300 having the above-described configuration to prevent the passenger from stepping on the safety footrest 100, and the stopper 300 supports the safety footrest 100 By doing so, the safety scaffold 100 can be maintained in an expanded state more firmly. The stopper 300 may be designed so that the protruding width is smaller than that of the safety footrest 100 to prevent a collision between the stopper 300 and the train.

11 is a perspective view showing a safety scaffold 100 having a weight 400 according to an embodiment of the present invention.

Referring to FIG. 11 , when the safety footrest 100 and the drive unit 200 are spaced apart, the safety footrest 100 may be automatically guided into an open state with its own weight due to gravity. A weight 400 for artificially increasing weight may be further provided to the safety scaffold 100 so that an error does not occur in the unfolding operation by its own weight. The weight 400 may be coupled and fixed to the lower surface of the safety scaffold 100. When the driving unit 200 is interlocked with the sliding door 1002 that is opened, the driving unit 200 is separated from the safety scaffold 100, The weight 400 adds weight to the front side of the safety scaffold 100 so that the safety scaffold 100 can be automatically lowered and rotated, and through this, the relatively heavy front side of the safety scaffold 100 descends quickly. The safety scaffold 100 induces an unfolded state by rapidly descending and rotating without maintaining a folded state.

Figure 12 is a perspective view showing the safety footrest 100 having an elastic member 500 according to an embodiment of the present invention.

Referring to FIG. 12 , an elastic member 500 connecting the lower surface of the safety footrest 100 and one surface of the platform 3 or the front of the fixed panel 102 may be additionally provided. The elastic member 500 may be made of a spring, and when the safety footrest 100 is rotated upward by the driving unit 200 to maintain a folded state, the elastic member 500 is extended. The elastic member 500 is interlocked with the sliding door 1002 in which the driving unit 200 is opened so that when the driving unit 200 is separated from the safety footrest 100, the safety footrest 100 can be automatically lowered and rotated. It is quickly contracted by the elastic restoring force, and at the same time as the drive unit 200 is separated, the safety footrest 100 rapidly descends to induce an unfolded state.

According to the embodiment of the present invention, when the drive unit 200 is separated from the safety footrest 100 by the weight 400 or the elastic member 500, the safety footrest 100 is not converted to the unfolded state Prevents the risk And, by inducing it to unfold more quickly, it is possible to prevent problems such as the passenger not being able to step on the safety footrest 100 that has not yet been unfolded.

13 is a flowchart illustrating an operation example of a safety foothold device for a subway screen door according to an embodiment of the present invention.

Referring to FIG. 13, first, an open signal receiving step (S10) is performed in which the screen door (see 1002 in FIG. 1) receives an open signal through an external control means, and is closed through the open signal receiving step (S10). A screen door opening step (S20) in which the screen door 1002 is opened is performed.

In conjunction with the opening step (S20), a driving unit separation step (S30) is performed in which the driving unit 200 coupled to the screen door 1002 is separated from the side end of the safety footrest 100 located in a folded state inside.

A descending induction step (S40) in which the safety scaffold 100 of the closed ecology is mechanically and automatically rotated downward in conjunction with the driving part separation step is performed. Then, through the descending induction step (S40), the safety scaffold 100 is lowered and rotated, for example, through this, the spreading step of the safety scaffold 100 that is in close contact with and supported on the upper surface of the stopper 300 ( By performing S50), the passenger can use the safety footrest in the unfolded state.

According to an embodiment of the present invention, the safety scaffold 100, which performs the unfolding and closing operations through these steps, mechanically interlocks with the screen door 1002 according to the opening and closing of the screen door 1002 without a separate power source, thereby automatically expanding and folding the operation. can be performed, so there is less concern about failure compared to the case of using power, and even if a failure occurs, the configuration is simple and maintenance is easy.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention, which is common in the technical field to which the present invention belongs. It will be clear to those who have knowledge.

1: safety footrest device 2: screen door
3: Platform
100: safety footrest 101: hinge
102: fixed panel 103: incision
104: first through hole 110: first curved surface
120: extension scaffold 121: second through hole
122: locking bolt 123: locking end
200: drive unit 201: coupling unit
202: coupling hole 210: inclined lifting part
211: protruding surface 212: inclined surface
213: second curved surface 300: stopper
310: first stopper 320: second stopper
321: hinge inlet groove 400: weight
500: elastic member

Claims (17)

A safety footrest located below the screen door and pivoting around the hinge; and
A driving unit coupled to the sliding door of the screen door, interlocked according to the sliding movement of the sliding door, and having an inclined lifting unit protruding toward the safety footboard and sliding in contact with the bottom of the side end of the safety footboard,
In a state in which the safety footrest and the inclined lifting unit of the driving unit are separated from each other, an unfolded state in which the safety footrest rotates toward the ground is induced,
A folded state is induced by rotating and lifting the safety foot toward the sliding door while the inclined lifting part of the drive unit contacts the side end bottom of the safety foot,
The drive unit further includes a coupling unit coupled to a lower end of the screen door,
The inclined lifting part includes a protruding surface perpendicular to the side end facing the safety footrest among the side ends of the coupling part and protruding toward the front side; and
Including an inclined surface protruding from the front of the protruding surface toward the safety scaffold, protruding with an inclination of descending upper and lower ends, and forming an inclination on the upper surface by contacting the upper end and lower end of the protruding end,
A safety footboard device for a subway screen door in which an end of the safety footboard is retracted into an inner space formed by the protruding surface and the inclined surface. According to claim 1,
The driving unit is a safety scaffolding device for a subway screen door fixed to the lower end of the screen door. According to claim 1,
The hinge is a safety foothold device for a subway screen door fixed to the front of the platform. According to claim 1,
The safety scaffold is a safety scaffolding device for subway screen doors including an extended scaffold that can move and protrude toward the front side along the upper surface of the safety scaffold. According to claim 4,
Safety footboard device for subway screen doors, wherein the width of the extension footboard is smaller than the width of the safety footboard. A safety footrest located below the screen door and pivoting around the hinge; and
A driving unit coupled to the sliding door of the screen door, interlocked according to the sliding movement of the sliding door, and having an inclined lifting unit protruding toward the safety footboard and sliding in contact with the bottom of the side end of the safety footboard,
In a state in which the safety footrest and the inclined lifting unit of the driving unit are separated from each other, an unfolded state in which the safety footrest rotates toward the ground is induced,
A folded state is induced by rotating and lifting the safety foot toward the sliding door while the inclined lifting part of the drive unit contacts the side end bottom of the safety foot,
A safety scaffolding device for a subway screen door in which a first curved surface curved upward is provided at the side end of the safety scaffold. According to claim 6,
The first curved surface is a safety scaffolding device for a subway screen door in which the degree of curvature increases toward the front side of the safety scaffold. delete According to claim 1,
A safety footboard device for a subway screen door in which the protruding width of the protruding surface is formed to be greater than the thickness of the safety footboard. A safety footrest located below the screen door and pivoting around the hinge; and
A driving unit coupled to the sliding door of the screen door, interlocked according to the sliding movement of the sliding door, and having an inclined lifting unit protruding toward the safety footboard and sliding in contact with the bottom of the side end of the safety footboard,
In a state in which the safety footrest and the inclined lifting unit of the driving unit are separated from each other, an unfolded state in which the safety footrest rotates toward the ground is induced,
A folded state is induced by rotating and lifting the safety footrest toward the sliding door while the inclined lifting part of the drive unit contacts the side end bottom of the safety footrest,
The drive unit further includes a coupling unit coupled to a lower end of the screen door,
The inclined lifting part includes a protruding surface perpendicular to a side end of the coupling part facing the safety footrest and protruding toward the front side; and
Including an inclined surface protruding from the front of the protruding surface toward the safety scaffold, protruding with an inclination of descending upper and lower ends, and forming an inclination on the upper surface by contacting the upper end and lower end of the protruding end,
A safety scaffolding device for a subway screen door having a second curved surface formed at the upper end of the inclined surface. According to claim 1,
The safety footrest device,
At least one stopper having a right-angled bent shape on the lower side of the safety footrest and maintaining the safety footrest in a horizontal state on the ground by closely contacting the lower surface of the safety footrest that is lowered and rotated to the upper surface Safety for subway screen doors further comprising scaffolding device. According to claim 11,
The stopper,
A first stopper formed on the lower side of the safety footrest and installed so that the vertically bent inner side faces the front side; or
A safety scaffolding device for subway screen doors including a second stopper formed outside the side end of the safety scaffold, the side of which is coupled and fixed to the front of the platform, and the lower surface of the safety scaffold rotated to the upper surface is closely attached and mounted. According to claim 12,
The second stopper,
A safety scaffolding device for a subway screen door comprising a hinge inlet groove into which the hinge is retracted. According to claim 1,
A weight is provided on the lower surface of the front end of the safety scaffold,
The weight is a safety foothold device for subway screen doors that applies a load to the lower surface of the safety footboard so that the safety footboard rotates downward when the screen door is opened. According to claim 1,
An elastic member having an elastic force is further provided at the center of the lower surface of the safety footrest,
The elastic member is a safety foothold device for a subway screen door that rotates the safety footplate downward by an elastic restoring force. According to claim 1,
The safety scaffolding device for a subway screen door safety scaffolding further comprises a bent portion extending along the longitudinal direction of the safety scaffolding. A screen door system comprising the safety foothold device according to claim 1,

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