KR0132448Y1 - Protection device of generating power controlling for roll door - Google Patents
Protection device of generating power controlling for roll door Download PDFInfo
- Publication number
- KR0132448Y1 KR0132448Y1 KR2019930024424U KR930024424U KR0132448Y1 KR 0132448 Y1 KR0132448 Y1 KR 0132448Y1 KR 2019930024424 U KR2019930024424 U KR 2019930024424U KR 930024424 U KR930024424 U KR 930024424U KR 0132448 Y1 KR0132448 Y1 KR 0132448Y1
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- South Korea
- Prior art keywords
- closed
- open
- relay
- detection switch
- roll door
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- 238000001514 detection method Methods 0.000 claims abstract description 38
- 230000007257 malfunction Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
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- 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
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
-
- 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
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/30—Electronic control of motors
-
- 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
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/44—Sensors not directly associated with the wing movement
-
- 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
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/50—Fault detection
-
- 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
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/52—Safety arrangements associated with the wing motor
-
- 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
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
본 고안은 롤 도어의 출력제어보호장치에 관한 것으로, 종래에는 제어부의 프로그램이 폭주하거나 고장발생시 감지부에서 입력된 신호를 잘못 판단할 경우 문의 개폐는 오동작을 하며 이로 인해 장애물의 손상 및 구동장치의 소손을 가져오는 문제점이 있었다.The present invention relates to an output control protection device for a roll door, and in the related art, when a program of the control unit is congested or an error is judged incorrectly by the detection unit, the door opens and closes and malfunctions. There was a problem that caused burnout.
따라서 종래의 문제점을 해결하기 위하여 본 고안은 감지부와 구동릴레이를 연계하여 구동하므로 이상발생시 센서에 대한 입력을 제어부에서 잘못 판단하더라도 센서입력이 직접 릴레이 출력을 제한하여 오동작에 의한 소손을 보호하도록 한 효과가 있도록 한다.Therefore, in order to solve the conventional problems, the present invention is driven by connecting the detection unit and the driving relay, so that even when the input to the sensor is incorrectly judged by the control unit, the sensor input directly limits the relay output to protect the burnout caused by malfunction. Make it work.
Description
제1도는 종래 롤 도어(Roll Door)의 출력제어장치 회로도.1 is a circuit diagram of an output control apparatus of a conventional roll door.
제2도는 본 고안 롤 도어의 출력제어보호장치 회로도.2 is a circuit diagram of the output control protection device of the present invention roll door.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 제어부 2 : 릴레이구동부1: control unit 2: relay driving unit
3 : 모터 4 : 상태감지부3: motor 4: status sensing unit
5 : 감지스위치부5: detection switch unit
SW1 : 모터과열감지스위치 SW2 : 비상정지스위치SW1: Motor overheat detection switch SW2: Emergency stop switch
SW3 : 완전개방감지스위치 SW4 : 완전폐쇄감지스위치SW3: fully open detection switch SW4: fully closed detection switch
본 고안은 롤 도어(Roll Door)의 출력제어보호에 관한 것으로, 특히 주위환경 또는 이상 요인의 발생으로 롤 도어 제어부의 이상 발생시 오동작에 의해 장애물 및 구동장치의 소손위험을 해소하도록한 롤 도어의 출력제어보호장치에 관한 것이다.The present invention relates to the output control protection of the roll door, in particular, the output of the roll door to solve the risk of burnout of the obstacles and the driving device by malfunction when the roll door control unit abnormally occurs due to the surrounding environment or abnormal factors A control protection device.
종래 롤 도어의 출력제어장치 구성도는 제1도에 도시된 바와 같이 각 감지스위치를 통해 입력되는 입력값에 따라 롤 도어의 개방 또는 폐쇄등을 제어하는 제어부(1)와, 상기 제어부(1)의 출력신호에 따라 개방릴레이(RY1)와 폐쇄릴레이(RY2)의 온,오프동작을 제어하는 릴레이구동부(2)와, 상기 개방 및 폐쇄릴레이(RY1)(RY2)의 온, 오프동작에 따라 롤 도어를 개방하거나 폐쇄하도록 동작하는 모터(3)와, 상기 모터(3)의 과열상태, 긴급상태 발생시 또는 롤 도어의 완전개방이나 완전폐쇄등을 감지스위치등(SW1-SW4)으로서 감지하여 상기 제어부(1)로 전달하는 상태감지부(4)로 구성된다.As shown in FIG. 1, the output control device of the conventional roll door includes a control unit 1 for controlling opening or closing of the roll door according to an input value input through each sensing switch, and the control unit 1. The relay driver 2 controls the on / off operation of the open relay RY1 and the closed relay RY2 according to the output signal of the roll, and the roll according to the on / off operation of the open and closed relays RY1 and RY2. The control unit detects the motor 3, which operates to open or close the door, the overheating state of the motor 3, an emergency state, or the complete opening or closing of the roll door as a detection switch lamp SW1-SW4. It is composed of a state detection unit (4) for transmitting to (1).
이와 같이 구성된 종래의 기술에 대하여 살펴보면 다음과 같다.Looking at the conventional technology configured as described above are as follows.
정상상태에서 상태감지부(4)의 모터과열감지스위치(SW1), 비상정지감지스위치(SW2), 완전개방감지스위치(SW3), 완전폐쇄감지스위치(SW4)는 온(ON) 상태에 있으며 개방 및 폐쇄릴레이(RY1)(RY2)는 오프상태에 있다.In the normal state, the motor overheat detection switch (SW1), the emergency stop detection switch (SW2), the fully open detection switch (SW3) and the complete closing detection switch (SW4) of the state detection unit (4) are in an ON state and are open. And the closed relays RY1 and RY2 are in an off state.
문을 개방하고자 할 경우 제어부(1)는 그의 개방출력단자(PO1)를 통해 하이신호를 출력한다. 이에 따라 상기 하이신호를 베이스로 입력받은 트랜지스터(Q1)가 턴온되므로 개방릴레이(RY1)의 코일에 전류가 흘러 개방릴레이스위치(S1)가 스위칭하여 모터(2)측으로 스위칭된다. 따라서 상기 모터(3)의 구동에 의해 롤 도어가 서서히 개방하기 시작하여 완전히 개방되었을 때 상태감지부(4)의 완전개방스위치(SW3)는 오프된다. 이때 상기 완전개방스위치(SW3)가 오프됨에 따라 전원전압단의 전원전압(+24V)이 저항(R3)을 통해 풀업받아 제어부(1)의 개방입력단자(PI3)로 입력된다.When the door is to be opened, the controller 1 outputs a high signal through its open output terminal PO1 . Accordingly, since the transistor Q1 receiving the high signal as the base is turned on, current flows through the coil of the open relay RY1 to switch the open relay switch S1 to the motor 2 side. Therefore, when the roll door starts to open gradually by the drive of the motor 3 and is fully opened, the fully open switch SW3 of the state detection unit 4 is turned off. At this time, as the fully open switch SW3 is turned off, the power supply voltage (+ 24V) of the power supply voltage terminal is pulled up through the resistor R3 and is input to the open input terminal P I3 of the controller 1.
따라서 상기 제어부(1)는 그의 개방입력단자(PI3)로 입력되는 하이신호에 따라 롤 도어가 완전개방되었음을 인식한다.Therefore, the controller 1 recognizes that the roll door is completely opened according to the high signal inputted to the open input terminal P I3 thereof.
그리고 문을 폐쇄하고자 할 경우 제어부(1)는 그의 폐쇄출력단자(PO2)를 통해 하이신호를 출력하면 그 하이신호는 트랜지스터(Q2)의 베이스에 인가되므로 상기 트랜지스터(Q2)는 턴온된다. 따라서 폐쇄릴레이(RY2)의 코일에 전류가 흐르고 폐쇄릴레이스위치(S2)가 스위칭하여 모터(3)측으로 스위칭함에 따라 상기모터(3)는 롤 도어가 닫히도록 구동하기 시작한다.When the door is to be closed, the controller 1 outputs a high signal through its closed output terminal PO2 , and the transistor Q2 is turned on because the high signal is applied to the base of the transistor Q2. Therefore, as the current flows in the coil of the closed relay RY2 and the closed relay switch S2 switches to the motor 3 side, the motor 3 starts to drive the roll door to be closed.
상기모터(3)에 의해 롤 도어가 닫히기 시작하여 완전히 닫혔을 때 이를 상태감지부(4)의 완전폐쇄감지스위치(SW4)가 감지하여 오프상태가 된다.When the roll door starts to be closed by the motor 3 and is completely closed, the fully closed detection switch SW4 of the state detection unit 4 detects the state and turns off.
이와 동시에 제어부(1)의 폐쇄입력단자(PI4)는 완전폐쇄감지스위치(SW4)가 오프상태가 됨에 따라 저항(R4)에 의해 풀업받아 하이(+24V) 신호를 상기 제어부(1)의 폐쇄입력단자(PI4)로 입력된다. 따라서 상기제어부(1)는 그의 폐쇄입력단자(PI4)로 입력되는 신호에 의해 롤 도어가 완전히 폐쇄되었음을 인식한다.At the same time, the closed input terminal P I4 of the controller 1 is pulled up by the resistor R4 as the fully closed detection switch SW4 is turned off, and a high (+ 24V) signal is closed of the controller 1. It is input to the input terminal P I4 . Accordingly, the control unit 1 recognizes that the roll door is completely closed by a signal input to its closed input terminal P I4 .
또한 과열되었을 경우 상기 과열온도감지스위치(SW1)가 오프되고 긴급사태 발생시 비상정지스위치(SW2)가 오프되어 제어부(1)의 입력단자(PI1)(PI2)로 하이 신호가 입력되면 상기 개방 및 폐쇄릴레이(RY1)(RY2)를 제어하여 롤 도어를 보호한다.In addition, when overheated, the overheat temperature detection switch SW1 is turned off, and when an emergency occurs, the emergency stop switch SW2 is turned off, and when the high signal is inputted to the input terminal P I1 (P I2 ) of the controller 1, the opening is performed. And the closed relays RY1 and RY2 to protect the roll door.
그러나 이와 같은 롤 도어의 출력제어에 있어서, 제어부의 프로그램이 폭주하거나 고장발생시 상태감지부에서 입력된 신호를 잘못 판단할 경우 문의 개폐는 오동작을 하며, 이로 인해 장애물의 손상 및 구동장치의 소손을 가져오는 문제점이 있었다.However, in the output control of such a roll door, when the program of the control unit is congested or when a failure occurs, if the signal input from the state detection unit is judged incorrectly, opening and closing of the door malfunctions, resulting in damage of the obstacle and damage of the driving device. There was a problem coming.
따라서 종래의 문제점을 해결하기 위하여 본 고안은 상태감지부와 릴레이를 연계하여 구동하여 이상발생시 입력된 신호에 대해 제어부에서 잘못 판단하더라도 감지스위치의 입력이 직접 릴레이출력을 제한하여 오동작에 의한 소손을 보호하도록 한 롤 도어의 출력제어보호장치를 안출한 것으로, 이하 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Therefore, in order to solve the conventional problems, the present invention operates by connecting a state sensing unit and a relay to protect the burnout caused by a malfunction by directly limiting the relay output even if the controller incorrectly judges the input signal when an error occurs. An output control protection device of the roll door is designed to be described in detail below with reference to the accompanying drawings.
제2도는 본 고안 롤 도어의 출력제어보호장치 회로도로서 이에 도시한 바와 같이 각 감지 스위치를 통해 입력되는 감지신호에 따라 롤 도어의 개방 또는 폐쇄등을 제어하는 제어부(1)와, 롤 도어에 관한 상태를 감지하는 모터과열감지스위치(SW1), 비상정지스위치(SW2), 완전폐쇄감지스위치(SW3)가 직렬연결되어 저항(R3)을 통해 접지측에 연결함과 아울러 상기 제어부(1)의 개방입력단자(PI3)에 연결하고 상기 완전폐쇄감지스위치(SW4)와 병렬연결된 완전개방감지스위치(SW3)는 저항(R4)을 통해 접지측에 연결함과 아울러 상기 제어부(1)의 폐쇄입력단자(PI4)에 연결하여 구성한 감지스위치부(5)와, 상기제어부(1)의 출력신호 또는 상기 감지스위치부(5)의 출력신호에 따라 개방릴레이(RY1)와 폐쇄릴레이(RY2)를 구동하는 릴레이구동부(2)와, 상기 개방 및 폐쇄릴레이(RY1)(RY2)의 온, 오프동작에 따라 롤 도어를 개방하거나 폐쇄하도록 동작하는 모터(3)로 구성한다.2 is a circuit diagram of an output control protection device for a roll door of the present invention, and a control unit 1 for controlling opening or closing of a roll door according to a sensing signal input through each sensing switch as shown in FIG. Motor overheat detection switch (SW1), emergency stop switch (SW2), a complete closed detection switch (SW3) for detecting a state is connected in series and connected to the ground side through a resistor (R3) and opening of the control unit (1) The fully open detection switch SW3 connected to the input terminal P I3 and connected in parallel with the completely closed detection switch SW4 is connected to the ground side through the resistor R4 and the closed input terminal of the control unit 1. Driving the open relay RY1 and the closed relay RY2 according to the sensing switch unit 5 connected to P I4 and the output signal of the control unit 1 or the output signal of the sensing switch unit 5. Relay drive unit 2 and the opening and closing relays ( It consists of the motor 3 which operates to open or close a roll door according to the on-off operation of RY1) and RY2.
이와 같이 구성된 본 고안의 작용 및 효과에 대하여 상세히 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above in detail.
정상상태에서는 모터과열감지스위치(SW1), 비상정지스위치(SW2), 완전개방감지스위치(SW3), 완전폐쇄감지스위치(SW4)는 온상태에 있으며, 개방릴레이(RY1)와 폐쇄릴레이(RY2)는 오프상태에 있는다.Under normal conditions, the motor overheat detection switch (SW1), emergency stop switch (SW2), fully open detection switch (SW3), and fully closed detection switch (SW4) are in the on state, and the open relay (RY1) and the closed relay (RY2). Is in the off state.
이때 도어를 개방하고자 할 경우 제어부(1)에서는 개방릴레이(RY1)에 연결된 트랜지스터(Q1)의 베이스에 하이신호를 출력한다. 이에 따라 상기 트랜지스터(Q1)는 턴온되므로 상기 각 스위치(SW1-SW3)를 순차적으로 통과하여 입력된 전원전압(+24V)이 트랜지스터(Q1)를 통해 접지측으로 바이패스되므로 개방릴레이(RY1)가 온되고, 개방릴레이스위치(S1)가 온되어 모터(3)를 동작시켜 서서히 도어를 개방하도록 한다.In this case, when the door is to be opened, the controller 1 outputs a high signal to the base of the transistor Q1 connected to the open relay RY1. Accordingly, since the transistor Q1 is turned on, the open relay RY1 is turned on because the power supply voltage (+ 24V) which is sequentially passed through the switches SW1 to SW3 is bypassed to the ground side through the transistor Q1. Then, the open relay switch (S1) is turned on to operate the motor 3 to gradually open the door.
이렇게 개방되기 시작하여 완전히 개방되었을 때 개방감지스위치(SW3)는 오프되어 개방릴레이(RY1)의 구동코일에 인가되는 전원전압을 차단하므로 도어의 개방을 중지한다. 동시에 제어부(1)의 개방입력단자(PI3)에서 로우신호를 입력받아 완전개방을 인식하므로 그의 개방출력단자(PO1)를 통해 상기 트랜지스터(Q1)의 베이스에 로우신호를 인가하여 개방릴레이(RY1)를 오프상태로 유지하도록 한다.When it starts to open in this way and is fully open, the open detection switch SW3 is turned off to cut off the power supply voltage applied to the drive coil of the open relay RY1, thereby stopping the opening of the door. At the same time, since the low signal is received from the open input terminal P I3 of the controller 1 to recognize the full opening, a low signal is applied to the base of the transistor Q1 through its open output terminal P O1 to open the relay. Keep RY1) off.
그리고 도어를 폐쇄하고자 할 경우 도어를 개방할 때와 같은 순서로, 먼저 제어부(1)에서는 폐쇄릴레이(RY2)에 연결된 트랜지스터(Q2)의 베이스에 하이신호를 출력한다. 이에 따라 상기 트랜지스터(Q2)는 턴온되므로 상기 각 스위치(SW1, SW2, SW4)를 통해 입력된 전원전압(+24V)이 트랜지스터(Q2)를 통해 접지측으로 바이패스되므로 폐쇄릴레이(RY2)가 온되고, 폐쇄릴레이(RY2)가 온됨에 따라 상시 모터(4)를 동작시켜 서서히 도어를 폐쇄토록 한다.When the door is to be closed, the controller 1 first outputs a high signal to the base of the transistor Q2 connected to the closed relay RY2 in the same order as when the door is opened. Accordingly, since the transistor Q2 is turned on, the closed relay RY2 is turned on because the power supply voltage (+ 24V) input through the switches SW1, SW2, and SW4 is bypassed to the ground side through the transistor Q2. As the closed relay RY2 is turned on, the door 4 is gradually closed by operating the motor 4 at all times.
이렇게 도어가 서서히 닫히기 시작하여 완전히 폐쇄되었을 때 완전폐쇄감지스위치(SW4)는 오프되어 폐쇄릴레이(RY2)의 구동코일에 공급되는 전원전압을 차단하므로 도어의 폐쇄동작을 중지한다. 이와 동시에 상기 제어부(1)의 폐쇄입력단자(PI4)에서 로우신호를 입력받아 완전폐쇄를 인식하므로 그의 폐쇄출력단자(PO2)를 통해 상기 트랜지스터(Q2)의 베이스에 로우신호를 인가하여 폐쇄릴레이(RY2)를 오프상태로 유지하도록 한다.Thus, when the door starts to close slowly and is completely closed, the complete closing detection switch SW4 is turned off to cut off the power voltage supplied to the driving coil of the closing relay RY2, thereby stopping the closing operation of the door. At the same time, since the low signal is received from the closed input terminal P I4 of the controller 1 to recognize the complete closure, the low signal is applied to the base of the transistor Q2 through the closed output terminal P O2 to close the closed signal. Keep the relay RY2 off.
또한 도어의 개방 또는 폐쇄도중 모터과열감지스위치(SW1)나 비상정지스위치(SW2)가 작동할 경우 개방 및 폐쇄릴레이(RY1, RY2)도 모두 작동불능상태가 되어 도어는 움직일 수 없다.In addition, when the motor overheat detection switch SW1 or the emergency stop switch SW2 is operated during the opening or closing of the door, both the opening and closing relays RY1 and RY2 become inoperative and the door cannot move.
이상에서 상세히 설명한 바와 같이 본 고안은 감지스위치와 개방 및 폐쇄릴레이를 연계하여 구동하므로 이상발생시 감지스위치에 대한 입력을 제어부에서 잘못 판단하더라도 감지스위치 입력이 직접 릴레이 출력을 제한하여 오동작에 대한 소손을 보호하도록 한다.As described in detail above, the present invention operates in conjunction with a detection switch and an open / closed relay, so that a detection switch input directly restricts the relay output even when an input to the detection switch is incorrectly judged by the controller, thereby protecting the burnout from a malfunction. Do it.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930024424U KR0132448Y1 (en) | 1993-11-19 | 1993-11-19 | Protection device of generating power controlling for roll door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930024424U KR0132448Y1 (en) | 1993-11-19 | 1993-11-19 | Protection device of generating power controlling for roll door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950014552U KR950014552U (en) | 1995-06-17 |
| KR0132448Y1 true KR0132448Y1 (en) | 1998-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930024424U KR0132448Y1 (en) | 1993-11-19 | 1993-11-19 | Protection device of generating power controlling for roll door |
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| Country | Link |
|---|---|
| KR (1) | KR0132448Y1 (en) |
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1993
- 1993-11-19 KR KR2019930024424U patent/KR0132448Y1/en not_active IP Right Cessation
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| KR950014552U (en) | 1995-06-17 |
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