KR101778277B1 - Control device of door opening and shutting - Google Patents

Control device of door opening and shutting Download PDF

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Publication number
KR101778277B1
KR101778277B1 KR1020150155138A KR20150155138A KR101778277B1 KR 101778277 B1 KR101778277 B1 KR 101778277B1 KR 1020150155138 A KR1020150155138 A KR 1020150155138A KR 20150155138 A KR20150155138 A KR 20150155138A KR 101778277 B1 KR101778277 B1 KR 101778277B1
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KR
South Korea
Prior art keywords
door
stopper
housing
spring
delete delete
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Application number
KR1020150155138A
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Korean (ko)
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KR20170052968A (en
Inventor
윤규중
윤지우
Original Assignee
주식회사 공진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to KR1020150155138A priority Critical patent/KR101778277B1/en
Publication of KR20170052968A publication Critical patent/KR20170052968A/en
Application granted granted Critical
Publication of KR101778277B1 publication Critical patent/KR101778277B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D19/00—Door arrangements specially adapted for rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D19/00—Door arrangements specially adapted for rail vehicles
    • B61D19/003—Door arrangements specially adapted for rail vehicles characterised by the movements of the door
    • B61D19/004—Door arrangements specially adapted for rail vehicles characterised by the movements of the door swinging
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Patch Boards (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The present invention relates to a door opening and closing control apparatus for a train inspection unit, and more particularly, to a door opening / closing control apparatus for a train inspection unit, and more particularly to a door opening / A door opening / closing control device for a train inspection unit is provided to prevent an accident that a door, which rotates from the upper portion to the lower portion of the ceiling frame, collides with the body of the worker's face or head .
The present invention is configured to install a rotation angle control member, a housing, and a cushioning member on a door of various products which are installed in an inclined manner while keeping the upper part of the door fixed to the ceiling frame and open from the top to the bottom when the door is opened .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door opening /

The present invention relates to a door opening and closing control apparatus for a train inspection unit, and more particularly, to a door opening / closing control apparatus for a train inspection unit, and more particularly to a door opening / A door opening / closing control device for a train inspection unit is provided to prevent an accident that a door, which rotates from the upper portion to the lower portion of the ceiling frame, collides with the body of the worker's face or head .

The inspection unit is provided with various mechanical devices and electric devices. The inspection unit is provided with a door such as a check cover so that it can not be seen from the outside, and the door is opened and closed at any time Inspection of inspection department is carried out.

Conventional Patent Registration No. 10-0831660 As shown in FIG. 4 of the prior art, the photograph of the actual product of the internal plate formed on the upper part of the door is the same invention as the product shown in FIG. 11 of the present invention, In the case of the opening / closing device of the driving unit cover for the PSD as well, the link and the gas damper used for driving the landing screen door installed in the platform such as a train or a subway have almost the same structure as the configuration of Fig. 11 11 is a perspective view of a door of a conventional electric vehicle and a ceiling frame of a side attachment device connected to a link so that a door can be opened and closed. A cylinder and a rod of a gas damper are installed on the side of the link, At this time, the door is installed at an upper portion of the ceiling frame and the upper portion of the door is fixed by a link When the door is opened while the door is in a state based on the link in the upper rotation from top to bottom, there is a problem that sometimes accidents are collisions with bodies such as the face or the head of a worker due to come down suddenly.

In the case of a gas damper installed in a conventional electric railcar, there is always a risk of an accident because the cylinder and the rod are operated to the final position where the door is opened and the door is operated to the final position where the door is fully opened. And the gas damper are complicated, the installation cost is high because the installation cost of the product is high, and particularly, in the case of the gas damper, the product must be replaced every three to four years.

In the case of a link applied to a conventional train, the door can not be controlled to open. Since the door can not be supported only by a link, a separate hinge device must be additionally installed.

Patent Registration No. 10-0830570

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ceiling frame of a railway vehicle having a stopper integrally formed on a lower side of a support plate and a housing coupled with a stopper and a hinge shaft, The door is locked in one step in the course of moving from the first stopper to the second stopper of the stopper, so that the door collides with the body such as the operator's face or head, And the door can be safely opened by moving the rotary bar located on the second stopper to the third stopper.

Another object of the present invention is to provide a door opening / closing control device for a train inspection unit, which is simple in assembly and installation work, and is provided with an upper portion of a door fixed to a hinge shaft at an upper portion of a ceiling frame, And to provide a door opening / closing control device for a train inspection unit that maximizes the range of use that can be installed in various products that rotate downward.

It is a further object of the present invention to provide a shock absorber in which a shock absorber can be actuated by a resilient force of a spring in a housing and a rotary bar provided on an upper portion of the shock absorber moves from a first stopper to a second stopper The rotating rod is stopped in the convex portion of the second stopper to control the rotation of the door and at the same time the rotary bar and the buffer member push the spring downward by the thickness of the convex portion protruding from the second stopper, And to provide a door opening / closing control device for a train inspection unit.

It is a further object of the present invention to provide a fixing plate and a length adjusting plate on a bottom surface of a spring and a bottom surface of a housing of a cushioning member and a length adjusting bolt coupled to the inside of the fixing plate, And to provide a door opening / closing control device for a train inspection unit.

It is still another object of the present invention to provide a door opening / closing control device for a railway vehicle inspecting unit, in which an auxiliary spring can be further installed inside a spring so as to more firmly maintain spring elasticity of a cushioning member.

It is a further object of the present invention to provide a method of controlling an opening of a door by controlling the opening of a door by providing a rotation angle control member, a housing, and a buffer member in the interior of a door for sealing an inspection unit installed on an entrance door of a train, And to provide a door opening / closing control apparatus for a train inspection unit that can prevent a safety accident of a worker in advance.

In order to achieve the above object, the door opening / closing control device for a train inspection unit according to the present invention is characterized in that a stopper is protruded below a support plate fixed by a bolt to an upper portion of a ceiling frame of a train, Wherein the first stopper forms a bending groove inward, and the second stopper convexly protrudes downwardly to form a convex portion A rotation angle control member for controlling the door to be fully opened in one step and a locking groove formed at an end portion and an inner side of the third stopper to maintain the door fully opened in two stages; And a shaft hole is formed on an upper side of the housing so that the stopper and the housing are fixed by a hinge shaft. The housing has an upper portion that is opened and a lower portion that is closed. Guide protrusions protrude inward from the front surface of the housing, A bracket is formed on both sides of the bracket, and a bolt hole is formed in the bracket. The bracket is fixed by a bolt in close contact with a door that hermetically closes an inspection part formed inside the ceiling frame, and a bolt hole is formed in the bottom surface of the housing A locking member formed on a lower side of the door and a latch, which lock and unlock the door while fixing and separating a latch to a side frame of the electric vehicle, and a buffer member is installed in the housing,
The cushioning member is formed with a partition wall at an inner upper portion thereof so as to separate an upper portion and a lower portion so that a seating portion is formed at an upper portion of the partition wall and a sidewall is formed inside the lower portion of the cushioning member to form a plurality of receiving portions, A rotating rod is formed on an inner wall surface of the seat portion and a supporting rod is provided therein and a rotating rod is coupled to the peripheral surface of the supporting rod to maintain a state in which the rotating rod is tightly adhered to the first stopper by the elastic force of the spring And when the rotating rod is moved to the second stopper, the rotating rod and the supporting rod push the buffer member downward and come in close contact with the convex portion of the second stopper to control the opening of the door in one step. When the door is pulled, The door is maintained in a state of being opened in two stages, and a guide groove is formed in the front surface of the buffer member A fixing plate and a distance adjusting plate are provided between the inner bottom surface of the housing and the lower portion of the spring of the buffering member and a screw hole is formed in the fixing plate to insert the distance adjusting bolt And when the distance adjusting bolt is rotated upward, the distance adjusting plate moves upward to adjust an elastic force of the spring.

According to the present invention, as described above, the present invention is characterized in that the door is fixed to a ceiling frame of a train by a hinge shaft and is opened from the upper part to the lower part, and the inspection part provided on the upper part of the door- A housing and a buffer member are provided in the interior of the door and the ceiling frame to prevent a safety accident in which the door is opened and collides with the body such as the face or the head of the worker.

A stopper is integrally formed on a lower side of a support plate provided on a ceiling frame of a train, and first, second and third stoppers are formed on a circumferential surface of the stopper to rotate the cushioning member The rod is kept in the initial stop state. While the rotating rod is moving from the first stopper to the second stopper, the rotating rod is stopped in the protruded portion protruding to the lower side of the second stopper, The rotary bar is firmly attached to the convex portion so that the opening of the door is controlled in one step, thereby preventing an accident that the door collides with the worker.

In the present invention, the rotating rod moving from the second stopper to the third stopper is firmly fixed to the latching groove of the third stopper, and the door is completely opened so that the operator can quickly perform maintenance work on the inspection portion of the electric vehicle There is an effect that can be.

The present invention has the effect of reducing the installation cost and the maintenance cost of the conventional gas damper and link by using the link, The fixing plate and the length adjusting plate are provided on the bottom surface of the housing and the length adjusting plate is moved upward by the rotation of the length adjusting bolt coupled to the inside of the fixing plate so that the elastic force of the spring can be easily adjusted.

The present invention has the effect of additionally providing auxiliary springs inside the springs so as to more efficiently enhance the elastic force of the springs.

The present invention improves the overall structure to improve the productivity and improve the assemblability, and it is possible to mass-produce the product, thereby reducing the cost of the product. Even if the elasticity of the spring is lowered by using the door opening / closing control device for a long- The use of the length control panel or the auxiliary spring makes it easy to maintain and repair the product, thus reducing the cost of replacing the product. It can also be applied to the subway billboards, check covers, or doors used in various places such as factories and offices To maximize the range of use.

1 is a perspective view of a door opening / closing control device for a train inspection unit according to the present invention.
2 is an exploded perspective view of a door opening / closing control device for a train inspection unit according to the present invention.
3 is a cross-sectional view of a door opening / closing control apparatus for a train inspection unit according to the present invention.
4 is a cross-sectional view showing a first-stage operation state of a door opening / closing control apparatus for a train inspection unit according to the present invention.
5 is a sectional view showing a two-step operation state of a door opening / closing control apparatus for a train inspection unit according to the present invention.
6 is a cross-sectional view illustrating a state where the spring and the auxiliary spring are installed inside the housing of the present invention.
7 is a view showing a state in which a door opening / closing control apparatus for a train inspection unit according to the present invention is installed in a ceiling frame of a train.
8 is a cross-sectional view of Fig.
9 is a sectional view showing a first-stage operation state of a door opening / closing control device for a train inspection unit according to the present invention.
10 is a sectional view showing a two-step operation state of a door opening / closing control apparatus for a train inspection unit according to the present invention.
Fig. 11 is a photograph of a door opening / closing control device for a train inspection unit installed in a conventional electric vehicle

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 10, the present invention can be applied to a door (B) of various products in which a door (B) is opened from the top to the bottom while the upper part of the door (B) The housing 20, and the cushioning member 30. The rotation angle control member 10, the housing 20,

The rotation angle control member 10 installed in the ceiling frame A of the electric train has a bolt hole 12 formed in a plate-shaped support plate 11 and a bolt 12 is fastened to the bolt hole 12 A stopper 13 is integrally formed on the lower side of the support plate 11 and the stopper 13 is fixed to the ceiling frame A. The stopper 13 includes first, second and third stoppers 14 and 15, The rotation of the door B is performed in the first stage and the second stage in the same manner as the rotation rod 38 to be described later is sequentially rotated along the first, second, and third stoppers 14, 15, And the first stopper 14 forms a bending groove 14a inwardly and the bending groove 14a is formed in a state in which the door B installed on the ceiling frame A in an inclined state is fixed The bending groove 14a formed in the inner side of the stopper 13 is formed into a curved groove 14a so that the rotating rod 38 can not move in the direction in which the second stopper 15 is placed, The second stopper 15 controls the rotation so that the protrusion 15a protruding downward from the hinge shaft 22 is protruded so that when the operator pulls the door B, The door 38 is moved along the convex portion 15a as shown in Fig. 4, and the door B is controlled in one stage while the door 38 stops moving without passing through the final position of the convex portion 15a, The reason why the rotating rod 38 is kept in a firmly adhered state to the second stopper 15 is that the rotating rod 38 and the buffer This is because the rotating rod 38 can not move in contact with the convex portion 15a due to the force of the member 30 pushing the spring 35 downward and the elastic force of the spring 35.

On the other hand, the rotary rod 38 stopped at the second stopper 15 is brought into close contact with the third stopper 16 by the pulling operation of the door B, And the stopper groove 16a is formed at the end portion and the inside of the stopper 13 so that the stopper 13 is fixed while maintaining the door B in a completely opened state in two steps, A hinge hole 17 is formed on the inner side of the hinge shaft 22 to be coupled to the housing 20 to be described later.

The housing 20 coupled with the stopper 13 and the hinge shaft 22 has an upper portion thereof opened and a lower portion thereof closed to insert a cushioning member 30 to be described later. The guide protrusion 20a protrudes inwardly and a guide groove 30a formed in a buffer member 30 to be described later is inserted to prevent the buffer member 30 from being tightly fixed to the inside of the housing 20 A shaft hole 21 is formed on an upper side surface of the housing 20 so as to be fixed by a stopper 13 and a hinge shaft 22. A bracket 23 protrudes from both sides of the front surface of the housing 20, A bolt hole 24 is formed in the bracket 23 to fix the bracket 23 and the housing 20 to the door B so that the door B is opened around the hinge shaft 22, A bolt hole 25 is formed in the bottom surface of the housing 20 so that a length adjusting bolt 27, which will be described later, A fixing plate 26 and a distance adjusting plate 28 are sequentially installed on the inner bottom surface of the housing 20 and a screw hole 26a is formed in the fixing plate 26 to adjust the distance adjusting bolt 27, When the distance adjusting bolt 27 is rotated upward, the distance adjusting plate 28 moves upward and the elastic force of the spring 35 to be described later can be adjusted.

The cushioning member 30 installed inside the housing 20 is formed to be capable of preventing the cushioning member 30 from being shaken or twisted when the cushioning member 30 is installed inside the housing 20, A guide groove 30a is formed in the front surface of the housing 20 so that the guide groove 30a is vertically inserted into the guide protrusion 20a formed in the housing 20 and is firmly fixed. A partition wall 31 is formed on the partition wall 31 to form a seating part 32 on the upper part of the partition wall 31 and a side wall 33 is formed on the lower side of the buffer member 30 to form a plurality of accommodation parts 34 A spring 35 is inserted into the accommodating portion 34 so that the bottom surface of the spring 35 is exposed to the outside and is in close contact with the distance adjusting plate 28 provided inside the housing 20, A rotation hole 36 is formed in the upper inner wall surface of the support member 32, And a rotating rod 38 is installed on the peripheral surface of the supporting rod 37. The rotating rod 38 is elastically contacted with the rotating rod 38 in a process of moving along the stopper 13, And a supporting rod 37 is provided inside the rotating rod 38 to prevent breakage of the rotating rod 38 made of a synthetic resin and the supporting rod 37 is fixed to the elastic force of the spring 35 The rotation rod 38 and the support rod 37 are rotated by the rotation of the first stopper 15 when the rotation rod 38 is moved to the second stopper 15, When the buffer member 30 is pushed downward, the rotation rod 38 can be moved along the second stopper 15 by the elastic force of the spring 35.

As shown in FIG. 6, the elastic force of the spring 35 may be adjusted by adjusting the elasticity of the spring 35 by using a distance control plate 28 or by adjusting an elastic force by additionally providing an auxiliary spring 39 inside the spring 35, .

FIG. 7 is a view showing another embodiment of the present invention. FIG. 7 is a view showing a state in which doors and doors are closed, The bracket 23 of the housing 20 is fixed to the door B by a bolt while the door B is fixed to the door B by bolts, The upper portion of the door B is fixed to the door 20 in a state where the housing 20 is fixed to the stopper 13 by the hinge shaft 22, A lock member 40 and a latch 41 are installed on the inner side of the rear surface of the door B so that a latch is provided on the upper side of the side frame C, (41) is held in a locked state at one end, and the door (B) is fixed Maintain and, when releasing the lock member 40, the configuration of the present invention the structure in which the end of the door (B), while the latch 41 is rotated to move the lower side is applied.

Referring to Fig. 7, a door opening / closing control apparatus for a train inspection unit according to the present invention is operated as follows.

When the lock member 40 is released by using a key when the inspection unit installed on the doors and the side attachment device of the train is required to be checked, the latch 41 is separated from the side frame C while rotating, When the door B is pulled out, the door B is opened. In the conventional case, as shown in FIG. 11, when the door B is completely opened, the door B is directly opened to the body The present invention can be applied to a case where the rotation rod 38 is separated from the bending groove 14a of the first stopper 14 and passes through the convex portion 15a where the second stopper 15 is located 9, when the rotary bar 38 is maintained in the first stop state in the course of the operation, the door B is partially opened, but is not completely opened, The rotating rod 38 in the stopped state in the second stopper 15 is rotated along the convex portion 15a so that the rotating rod 38 and the supporting rod 37, The rotation bar 38 can rotate along the convex portion 15a by the force of the spring 30 pushing the spring 35 downward and the elastic force of the spring 35, 35 by the elastic force of the first stopper 35 and the second stopper 15 so that the first-stage control state of the door B can be maintained.

The operator holds the door B while the rotating rod 38 is stopped on the second stopper 15 and the long-term surface rotating rod 38 is brought into close contact with the engaging groove 16a of the third stopper 16, The door B is fully opened and can be held in a fixed state and the operation of pushing the door B upward when the operation of the inspection section of the worker is completed, When the latch 41 of the lock member 40 is rotated, the latch 41 is brought into close contact with the upper portion of the side frame C so that the locked state of the door B Lt; / RTI >

The present invention can be applied to a door (B) installed on an inclined upper part of a ceiling frame (A), and particularly to a door such as an upper part of a screen door of a subway or an inspection cover for sealing an inspection part of a train, And a billboard installed in a place such as a place where the product can be used in various places.

The door open / close control device for a train inspection unit according to the present invention is not limited to the above-described embodiments, and various modifications and changes may be made without departing from the spirit and scope of the present invention. There is a technical spirit to the extent that anyone who has it can make various changes.

10: rotation angle control member 11: support plate
12: Bolt hole 13: Stopper
14: first stopper 14a: bending groove
15: second stopper 15a:
16: third stopper 16a: latching groove
17: Hinge hole 20: Housing
21: Shaft yoke 22: Hinge shaft
23: Bracket 24, 25: Bolt hole
26: Fixing plate 26a: Screw hole
27: Distance adjusting bolt 28: Distance adjusting plate
30: buffer member 31: partition wall
32: seat part 33: side wall
34: accommodating portion 35: spring
36: rotation hole 37: support rod
38: rotating rod 39: auxiliary spring
40: locking member 41: latch
A: Ceiling frame B: Door
C: Side frame

Claims (11)

A stopper 13 protrudes below the support plate 11 fixed to the upper portion of the ceiling frame A of the train by a bolt. A hinge hole 17 is formed in the stopper 13, 13 are integrally formed with the first, second and third stoppers 14, 15, 16 in the circumferential direction, the first stopper 14 forms a bending groove 14a inwardly, The stopper 15 forms a convex portion 15a convexly downward to control the door B to be fully opened so that the door stopper 15 controls the door B in one step. A rotation angle control member 10 for maintaining the door B in a fully open state in two steps; And
A shaft hole 21 is formed on an upper side surface of the housing 20 so that the stopper 13 and the housing 20 are fixed by the hinge shaft 22. The housing 20 is hermetically closed while the upper portion is opened, A guide protrusion 20a protrudes inward and a bracket 23 protrudes from both sides of the front surface of the housing 20 and a bolt hole 24 is formed in the bracket 23 The bracket 23 is fixed by bolts in close contact with a door B for sealing an inspection portion formed inside the ceiling frame A and a bolt hole 25 is formed in the bottom surface of the housing 20, The lock member 40 and the latch 41 formed in the lower side of the door B lock and unlock the door B while the latch 41 is fixed to and detached from the side frame C of the electric train, 20, a buffer member 30 is provided inside the buffer member 30,
The buffer member 30 has a partition wall 31 formed at an inner upper portion thereof so as to separate an upper portion and a lower portion of the buffer member 30 so that a seating portion 32 is formed at an upper portion of the partition wall 31, A spring 35 is inserted into the receiving part 34 by forming a side wall 33 so that the receiving part 34 of the receiving part 34 is formed and a rotation hole 36 is formed on the inner side wall of the receiving part 32 The rotation rod 38 is engaged with the first stopper 14 by the elastic force of the spring 35 so that the rotation rod 38 is engaged with the first stopper 14 The rotating rod 38 and the supporting rod 37 push the buffer member 30 downward while the rotating rod 38 is moved to the second stopper 15, The door B is brought into close contact with the convex portion 15a of the door 15 so as to control the opening of the door B in the first stage and when the door B is pulled out, the rotary rod 38 is brought into close contact with the third stopper 16 A guide groove 30a is formed in the front of the buffer member 30 so that the guide protrusion 20a of the housing 20 is engaged with the guide groove 30a A fixing plate 26 and a distance adjusting plate 28 are provided between the inner bottom surface of the housing 20 and the lower portion of the spring 35 of the buffer member 30. A screw hole The distance adjusting bolt 27 is inserted and the distance adjusting bolt 27 is rotated upward so that the distance adjusting plate 28 moves upward to adjust the elastic force of the spring 35. [ Door opening / closing control device for inspection of electric trains. The door opening and closing control device for a train inspection unit according to claim 1, wherein an auxiliary spring (39) can be additionally provided inside a spring (35) provided inside the cushioning member (30). delete delete delete delete delete delete delete delete delete
KR1020150155138A 2015-11-05 2015-11-05 Control device of door opening and shutting KR101778277B1 (en)

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KR1020150155138A KR101778277B1 (en) 2015-11-05 2015-11-05 Control device of door opening and shutting

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Application Number Priority Date Filing Date Title
KR1020150155138A KR101778277B1 (en) 2015-11-05 2015-11-05 Control device of door opening and shutting

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KR101778277B1 true KR101778277B1 (en) 2017-09-13

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