KR101871672B1 - Platform screen door locking device - Google Patents

Platform screen door locking device Download PDF

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Publication number
KR101871672B1
KR101871672B1 KR1020170143382A KR20170143382A KR101871672B1 KR 101871672 B1 KR101871672 B1 KR 101871672B1 KR 1020170143382 A KR1020170143382 A KR 1020170143382A KR 20170143382 A KR20170143382 A KR 20170143382A KR 101871672 B1 KR101871672 B1 KR 101871672B1
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KR
South Korea
Prior art keywords
screen door
manual opening
jig
projection
lock
Prior art date
Application number
KR1020170143382A
Other languages
Korean (ko)
Inventor
조봉관
방춘석
Original Assignee
한국철도기술연구원
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Priority to KR1020170143382A priority Critical patent/KR101871672B1/en
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Publication of KR101871672B1 publication Critical patent/KR101871672B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
    • B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F1/00—Construction of station or like platforms or refuge islands or like islands in traffic areas, e.g. intersection or filling-station islands; Kerbs specially adapted for islands in traffic areas
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/08—Locks or fastenings for special use for sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/40—Application of doors, windows, wings or fittings thereof for gates
    • E05Y2900/404—Application of doors, windows, wings or fittings thereof for gates for railway platform gates

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)

Abstract

The present invention relates to an apparatus for locking a platform screen door. The apparatus for locking a platform screen door according to an embodiment of the invention comprises: a first jig and a second jig; a drive unit having a drive shaft which moves up and down in the direction perpendicular to the moving direction of the screen door according to a control signal; and a lock unit coupled to an end unit of the drive shaft and configured to intersect up and down movement direction of the drive unit. The first jig and the second jig are slidingly moved and include a first screen door disposed to face each other and a first protrusion and a second protrusion arranged respectively at end units of first and second screen doors and formed to protrude upward. The lock unit includes: a first insertion groove into which the first protrusion is inserted; and a second insertion groove into which the second protrusion is inserted.

Description

{PLATFORM SCREEN DOOR LOCKING DEVICE}

The present invention relates to a platform screen door lock.

Generally, in the history of a subway or a railroad, a screen door device is installed to isolate a track or a platform of a train or a railroad car.

The sliding doors of the screen door apparatus are kept closed when the railway vehicle does not normally travel, when the railway vehicle enters the landing platform or after the landing platform, but when the railway vehicle completely enters the platform It is then opened for the passengers to get on and off.

The screen door device which operates under the above conditions has a function of preventing an accident that a passenger in a platform is falling down to a railway line and blocking a train wind which flows into a platform when entering a railway vehicle, It is installed in the platform of history and metropolitan railroad history.

The platform screen door can be installed in various forms depending on the type of the subway history, and can be classified into a closed type and a rail type.

First, the sealed screen door has a structure that completely blocks the floor and the ceiling. However, it has the advantage of preventing the dust on the rail side from entering the platform and blocking the noise, but it has a disadvantage that difficulty in manufacturing and installation and excessive expenditure are used have.

On the other hand, the handrail type screen door is not completely blocked between the floor and the ceiling but the upper side is opened. It can not completely block dust and noise on the rail side, but the manufacturing and installation are easier than the closed screen door, There is an advantage that the installation cost is reduced.

A conventional screen door for a landing platform is constructed as follows. First, a protection wall is provided at a landing platform adjacent to a railroad track, and the protective wall extends from the landing platform to the ceiling (closed type) (Handrail type).

In addition, the protection wall is generally made of tempered glass or reinforced plastic, and an entrance is formed at the same position as the door of a train stopping at the platform, among which a safety gate for opening and closing the entrance is slidably opened and closed do.

In general, the safety gate is made up of a pair of sliding doors opened and closed on the left and right sides as well as a doorway of a train. It is opened only when the train is completely stopped on the platform. Otherwise, the closed (closed) So that the passengers are prevented from approaching or falling to the track other than when waking or getting off.

To this end, an upper frame connected horizontally is installed at the upper part of the protection wall, and an open / close indicator for informing the opening / closing state of the safety door is installed in the upper frame. The closed state of the safety door can be maintained at all times A screen door lock device is provided.

On the other hand, in the related art, Korean Patent No. 10-1397459 (entitled "Locking device for a platform screen door") is fixed to a frame of a protective wall adjacent to a screen door, and fixing portions are formed respectively at left and right ends thereof, A solenoid accommodated in the body and adapted to operate the apparatus, a solenoid connected to the solenoid through a spring, and operated in a direction perpendicular to the solenoid through forward and backward movement of the solenoid, And a door lock which is connected to the link and operates when the screen door is opened and closed by the operation of the link, thereby fixing the screen door in an open state.

It is an object of the present invention to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a safety door opening and closing system, And it is an object of the present invention to provide a platform screen door locking device capable of reducing installation cost of a screen door by reducing the manufacturing cost of a locking device.

It is to be understood, however, that the technical scope of the present invention is not limited to the above-described technical problems, and other technical problems may exist.

As a technical means to accomplish the above object, a platform screen door lock device according to the first embodiment of the present invention is slidably moved, and is disposed at the end of a first screen door and a second screen door arranged to face each other A first jig and a second jig including a first projection and a second projection formed so as to protrude upward; A driving unit having a driving shaft that moves up and down in a direction perpendicular to a moving direction of the screen door according to a control signal; And a lock portion coupled to an end portion of the drive shaft and configured to intersect a vertical movement direction of the drive portion, wherein the lock portion includes a first insertion groove into which the first projection is inserted and a second insertion groove into which the second projection is inserted, .

The platform screen door lock apparatus according to the second embodiment of the present invention includes a first screen door slidingly moved and disposed to face each other, and first and second jigs disposed at the ends of the second screen door, respectively; A driving unit having a driving shaft that moves up and down in a direction perpendicular to a moving direction of the screen door according to a control signal; And a locking portion coupled to an end portion of the driving shaft, wherein the first and second jigs are disposed so as to extend along the moving direction of the screen door, but are arranged in a staggered manner so as not to contact each other, The first protrusion and the second protrusion are formed on the first protrusion and the second protrusion, respectively, and the locking part inserts the driving part between the first protrusion and the second protrusion according to the operation of the driving part to maintain the locked state of the screen door.

According to the above-described problem solving means, since the doors of both sides are locked or unlocked at the same time by only one locking device, the safety door is opened and closed to improve the operation reliability and safety of the screen door, The effect of reducing the installation cost of the screen door by reducing the manufacturing cost of the locking device can be greatly improved.

1 is a view of a screen door to which a platform screen door lock device according to an embodiment of the present invention is applied.
2 is a front view for explaining a platform screen door locking device according to a first embodiment of the present invention;
3 is a side sectional view for explaining a platform screen door locking device according to a first embodiment of the present invention.
4 is a cross-sectional view illustrating a sensor module according to a first embodiment of the present invention.
5 is a view for explaining a locking part and a jig according to the first embodiment of the present invention.
6 is a front view of a platform screen door lock device according to a second embodiment of the present invention.
7 is a view for explaining a locking part and a jig according to a second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.

Throughout this specification, when a part is referred to as being "connected" to another part, it is not limited to a case where it is "directly connected" but also includes the case where it is "electrically connected" do.

Throughout this specification, when a member is " on " another member, it includes not only when the member is in contact with the other member, but also when there is another member between the two members.

Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. The terms "about "," substantially ", etc. used to the extent that they are used throughout the specification are intended to be taken to mean the approximation of the manufacturing and material tolerances inherent in the stated sense, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure. The word " step (or step) "or" step "used to the extent that it is used throughout the specification does not mean" step for.

The present disclosure relates to a platform screen door lock (100).

Referring to FIG. 1, the platform screen door will be briefly described in advance of the description of the present invention. The screen doors 10 and 20 are installed along the edge of the reverse platform to divide the platform into a rail side and a platform side . The passenger waits for the train to arrive at the platform, and can only go to the rail side when the train arrives and the screen doors 10, 20 are opened. Generally, the screen doors 10 and 20 are configured in such a manner that they are slidably opened and closed in the left and right direction.

FIG. 1 is a view showing a screen door to which a platform screen door locking device according to an embodiment of the present invention is applied, FIG. 2 is a front view for explaining a platform screen door locking device according to a first embodiment of the present invention, 3 is a side sectional view for explaining a platform screen door locking device according to a first embodiment of the present invention, FIG. 4 is a sectional view for explaining a sensor module according to a first embodiment of the present invention, FIG. 6 is a front view of a platform screen door locking device according to a second embodiment of the present invention, and FIG. 7 is a front view of a second embodiment of the present invention, And Fig.

First, a platform screen door locking device 100 (hereinafter referred to as a 'screen door locking device') according to a first embodiment of the present invention will be described.

1 and 2, the screen door lock apparatus 100 includes a first jig 110, a second jig 120, a driving unit 130, and a locking unit 140.

The first jig 110 and the second jig 120 are disposed to face each other and may be respectively disposed at the ends of the first screen door 10 and the second screen door 20 that are disengaged according to the sliding movement. The first jig 110 and the second jig 120 may be arranged to extend along the moving direction of the screen doors 10 and 20.

The first jig 110 is disposed at the upper edge portion of the first screen door 10 located in the sliding direction and in the closing direction of the first screen door 10 and the second jig 120 is disposed at the upper edge portion of the first screen door 10, And disposed at the upper edge of the second screen door 20 located in the direction in which the second screen door 20 is closed.

The driving unit 130 may include a driving shaft 131 that moves in the vertical direction with respect to the moving direction of the screen doors 10 and 20 in accordance with a control signal. Illustratively, the driver 130 may be a solenoid module. More specifically, the driving unit 130 can be moved upward in the driving shaft 131 by exciting the solenoid. Further, when the solenoid is disengaged, the drive shaft 131 can be moved downward. At this time, the driving shaft 131 can be moved downward by the elastic force of the elastic part 132 and the own weight of the driving shaft 131. Further, the solenoid is electrically connected to the control unit, and the excitation and the device can be switched by the control signal transmitted from the control unit.

The locking portion 140 is coupled to the end of the driving shaft 131 and may have a predetermined shape to fix the first and second jig 110 and 120. The detailed configuration of the lock portion 140 will be described later.

As the driving shaft 131 is moved downward, the locking portions 140 fix the first and second jigs 110 and 120 to maintain the locked state of the screen doors 10 and 20 . A detailed description thereof will be given later.

4, the screen door locking device 100 includes a sensing plate 180 that extends in the right and left direction on the driving shaft 131 and reflects light and a sensing plate 180 that is open and closed in the locking portion 140 180 located at positions corresponding to the sensor module 150.

Illustratively, the sensing plate 180 may be formed in a plate shape and include bent portions 181 formed by bending both ends. The sensor module 150 can sense the position of the driving shaft 131 by inserting the bent portion 181 of the sensing plate 180. The bent portion 181 of the sensing plate 180 is located in the sensor module 150 located at the lower portion and the drive shaft 131 is moved in the downward direction, The bent portion 181 of the sensing plate 180 may be positioned on the upper sensor module 150 when the sensor module 150 is moved in the unlocked state. That is, when the sensing plate 180 is sensed by the sensor module 150 located at the lower portion, the screen door locking device 100 is in the locked state, and the sensing plate 180 is sensed by the sensor module 150 located at the upper portion The screen door lock device 100 may be in the unlocked state.

The screen door lock device 100 may further include a manual opening portion 160 capable of manually opening the screen doors 10 and 20 on the line side.

The manual opening portion 160 is coupled to the lower end portions of the manual opening rod 161 and the manual opening rod 161 in which the lower side and the upper portion of the locking portion 140 are in contact with each other, (Not shown). In addition, the manual opening portion 160 may be installed in the first screen door 10 and the second screen door 20, respectively.

The manual opening knob 162 may be disposed on the rail side of the screen doors 10, 20. Further, the manual opening knob 162 is connected to the manual opening rod 161 at an end thereof, and the manual opening rod 161 can be moved upward as the door is pivoted. At this time, as the manual opening rod 161 is moved upward, the locking part 140 can be moved upward and moved to the unlocking position. Illustratively, if an occupant located on the rail side needs to open the screen doors 10, 20 in an emergency, the manual opening 160 can be used. Therefore, when the screen doors 10 and 20 need to be opened from the rail side in an emergency, safety can be ensured such that the passengers on the landing platform do not protrude to the rail side by locking the screen doors 10 and 20.

3, the locking device for the screen doors 10 and 20 includes an electronic key 170 for moving the locking part 140 upward so that the screen doors 10 and 20 can be manually opened from the landing side. ).

The electronic key 170 rotates the key by putting the key owned by the station attendant or the person concerned and causes the key releasing part 171 to move in the upward direction and to be positioned in correspondence with the key releasing part 171, The lock key supporting portion 133, which is coupled to the end portion of the lock key supporting portion 133, can be moved upward. At this time, the locking part 140 coupled to the driving shaft 131 can be moved upward and moved to the unlocking position.

The screen door locking device 100 according to the first embodiment of the present invention and the screen door locking device 200 according to the second embodiment are provided with the jig 110, 120, 210, 220 and the locking parts 140, 240 And has a difference in configuration.

Hereinafter, with reference to FIG. 5, the jigs 110 and 120 and the lock 140 according to the first embodiment of the present invention will be described in detail.

The first jig 110 and the second jig 120 may include a first protrusion 111 and a second protrusion 121 formed to protrude upward. 5, the first jig 110 and the second jig 120 are formed in a plate shape, and the ends are bent so that the first and second protrusions 111 and 121 .

In addition, the first protrusion 111 and the second protrusion 121 may have a right triangle shape. Specifically, the first projection 111 and the second projection 121 have an inclined surface in a direction in which the screen doors 10 and 20 are closed, and a direction perpendicular to the sliding direction in a direction in which the screen doors 10 and 20 are opened As shown in FIG. Further, the lock portion 140 may be bent such that both ends thereof have a predetermined angle in the upward direction. For example, both end portions of the lock portion 140 may be bent at an angle corresponding to the inclined surfaces of the first and second protrusions 111 and 121. The first protrusion 111 and the second protrusion 121 move in the closing direction of the screen doors 10 and 20 and when the locking protrusion 111 contacts the locking portion 140, .

The locking part 140 may include a first insertion groove 141 into which the first projection 111 is inserted and a second insertion groove 142 into which the second projection 121 is inserted. The first insertion groove 141 may be formed in a direction in which the first screen door 10 is located and the second insertion groove 142 may be formed in a direction in which the second screen door 20 is located.

When the screen doors 10 and 20 are in the locked state, the locking portion 140 is lowered so that the first projection 111 is inserted into the first insertion groove 141 and the second projection 121 is inserted into the second insertion And can be inserted into the groove 142 to maintain the locked state. In other words, when the first projection 111 and the second projection 121 are inserted into the first insertion groove 141 and the second insertion groove 142, the first projection 111 and the second projection 121, The first screen door 10, 20 and the second screen door 10, 20 can be prevented from being opened by the vertical surface of the second screen door 10, 20.

6 and 7, the jigs 210 and 220 and the locking part 240 according to the second embodiment of the present invention will be described in detail.

The first jig 210 and the second jig 220 are arranged in a staggered manner so as not to contact each other and a first protrusion 211 and a second protrusion 221 protruding upward from the end portion may be respectively formed.

7, the first jig 210 and the second jig 220 are formed by projecting a plurality of extensions, and the screen doors 10, The portions can be arranged staggered. Further, protrusions 211 and 221 protruding upward can be formed at the ends of the respective extended portions.

The locking part 240 may be inserted between the first protrusion 211 and the second protrusion 221 according to the operation of the driving part 230 to maintain the locked state of the screen door 10,20 . Illustratively, the locking portion 240 may be formed in a plate shape.

In addition, the first protrusion 211 and the second protrusion 221 may have a right triangle shape. Specifically, the first protrusion 211 and the second protrusion 221 have inclined surfaces in a direction in which the screen doors 10 and 20 are closed, and extend in a direction perpendicular to the sliding direction in a direction in which the screen doors 10 and 20 are opened As shown in FIG. The first protrusion 211 and the second protrusion 221 move in the closing direction of the screen doors 10 and 20 and when the locking protrusion 211 contacts the locking portion 240, .

When the screen door 10 or 20 is in the locked state and the locking portion 240 is lowered and inserted between the first projection 211 and the second projection 221, By the vertical surface of the projection 221, the first screen door 10 and the second screen door 20 can be prevented from opening.

The screen door lock device 200 may further include a support portion 290 extending from both sides of the lock portion 240 in the sliding direction of the screen doors 10 and 20, respectively. The support portion 290 is formed to have a predetermined area in contact with the end of the manual opening rod 161 so that the supporting portion 190 and the locking portion 140 are moved upward Lt; / RTI >

The first jig 210 and the second jig 220 may be formed with holes through which the manual opening rod 161 penetrates. In other words, the manual opening rod 261 penetrates the first jig 210 and the second jig 220, and can be in contact with both ends of the supporting portion 290, respectively.

It will be understood by those of ordinary skill in the art that the foregoing description of the embodiments is for illustrative purposes and that those skilled in the art can easily modify the invention without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention.

10: first screen door 20: second screen door
100, 200: Screen door lock device
110, 210: first jig 211, 111: first projection
120, 220: second jig 121, 221: second projection
130 and 230: Driving parts 131 and 231:
132, 232: elastic portion 133: lock key support portion
140, 240: locking portion 141: first insertion groove
142: second insertion groove
150: Sensor module
160, 260: manual opening portion 161, 261: manual opening load
162, 262: Manual opening handle
170: Electronic key 171:
180: sensing plate 181: bent portion
290:

Claims (13)

CLAIMS 1. A platform screen door lock comprising:
A first jig and a second jig which are disposed at the ends of the first screen door and the second screen door, respectively, which are disposed so as to face each other and which are slidably moved, and which include a first projection and a second projection formed so as to protrude upward;
A driving unit having a driving shaft that moves up and down in a direction perpendicular to a moving direction of the screen door according to a control signal; And
And a lock portion coupled to an end portion of the drive shaft and configured to intersect the up and down movement direction of the drive portion,
Wherein the locking portion includes a first insertion groove into which the first projection is inserted and a second insertion groove into which the second projection is inserted,
When the screen door is in the locked state, the lock portion is lowered to insert the first projection into the first insertion groove, insert the second projection into the second insertion groove to maintain the locked state,
The first and second projections
Wherein the screen door has an inclined surface in a direction in which the screen door is closed and a vertical surface in a direction perpendicular to the sliding direction in a direction in which the screen door is opened. delete delete The method according to claim 1,
Wherein the locking portion is bent such that both ends thereof are at an angle to the upper direction. The method according to claim 1,
A sensing plate extending in the left and right direction on the drive shaft and reflecting light; And
Further comprising a sensor module located at a position corresponding to the sensing plate in the open and closed states of the locking portion, respectively. The method according to claim 1,
Further comprising a manual opening portion capable of manually opening the screen door from the line side,
The manual opening
A manual opening rod in which a lower surface and an upper end of the lock portion are in contact with each other; And
And a manual opening handle coupled to a lower end of the manual opening rod for moving the manual opening rod up and down. The method according to claim 1,
Further comprising an electronic key for moving the lock portion in a vertical direction so that the screen door can be manually opened on the landing side. CLAIMS 1. A platform screen door lock comprising:
A first jig and a second jig which are disposed at the ends of the first screen door and the second screen door, respectively, slidingly moved and arranged to face each other;
A driving unit having a driving shaft that moves up and down in a direction perpendicular to a moving direction of the screen door according to a control signal; And
And a lock portion coupled to an end of the drive shaft,
The first jig and the second jig are disposed so as to extend along the moving direction of the screen door so as not to be in contact with each other but in a staggered manner and have first projections and second projections projecting upward,
Wherein the locking part inserts the driving part between the first projection and the second projection according to the operation of the driving part to maintain the locked state of the screen door. 9. The method of claim 8,
And a support portion extending from both side surfaces of the lock portion in a sliding movement direction of the screen door,
Wherein the support portion is formed to have a predetermined area at a position in contact with the end of the manual opening rod such that the support portion and the locking portion are moved upward as the manual opening rod is raised. 9. The method of claim 8,
The first and second projections
Wherein the screen door has an inclined surface in a direction in which the screen door is closed and a vertical surface in a direction perpendicular to the sliding direction in an opening direction. 9. The method of claim 8,
A sensing plate extending in the left and right direction on the drive shaft and reflecting light; And
Further comprising a sensor module located at a position corresponding to the sensing plate in the open and closed states of the locking portion, respectively. 9. The method of claim 8,
Further comprising a manual opening portion capable of manually opening the screen door from the line side,
The manual opening
A manual opening rod in which a lower surface and an upper end of the lock portion are in contact with each other; And
And a manual opening handle coupled to a lower end of the manual opening rod for moving the manual opening rod up and down. 9. The method of claim 8,
Further comprising an electronic key for moving the lock portion in a vertical direction so that the screen door can be manually opened on the landing side.
KR1020170143382A 2017-10-31 2017-10-31 Platform screen door locking device KR101871672B1 (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755347B1 (en) * 2005-06-24 2007-09-04 나부테스코 가부시키가이샤 Manual unlocking device and platform screen door device
KR101044446B1 (en) * 2009-01-06 2011-06-27 주식회사 코하마 Manual release device opening and closing door of screen door
KR101525086B1 (en) * 2013-12-16 2015-06-02 현대로템 주식회사 Safety device for platform screen door
KR200478880Y1 (en) * 2014-07-25 2015-11-25 안정옥 Locking apparatus for screen door

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755347B1 (en) * 2005-06-24 2007-09-04 나부테스코 가부시키가이샤 Manual unlocking device and platform screen door device
KR101044446B1 (en) * 2009-01-06 2011-06-27 주식회사 코하마 Manual release device opening and closing door of screen door
KR101525086B1 (en) * 2013-12-16 2015-06-02 현대로템 주식회사 Safety device for platform screen door
KR200478880Y1 (en) * 2014-07-25 2015-11-25 안정옥 Locking apparatus for screen door

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