KR200468645Y1 - Reflecting plate for earthing hanger - Google Patents

Reflecting plate for earthing hanger Download PDF

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Publication number
KR200468645Y1
KR200468645Y1 KR2020110008440U KR20110008440U KR200468645Y1 KR 200468645 Y1 KR200468645 Y1 KR 200468645Y1 KR 2020110008440 U KR2020110008440 U KR 2020110008440U KR 20110008440 U KR20110008440 U KR 20110008440U KR 200468645 Y1 KR200468645 Y1 KR 200468645Y1
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South Korea
Prior art keywords
reflector
hook
plate
grounding
reflecting
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KR2020110008440U
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Korean (ko)
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KR20130001999U (en
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김철환
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한국철도공사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/02—Details
    • B60M1/04—Mechanical protection of line; Protection against contact by living beings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

본 고안은 철도 역구내 또는 선로에서 단전 후 전철주 또는 전선로에 접지걸이를 설치하고 나서 야간작업을 하는 작업자가 어두운 시야로 인해 접지걸이에 걸려 넘어지거나, 작업 완료 후 접지걸이 설치 위치를 찾지 못해 급전을 지연시키는 사고, 또는 장비 운전자가 접지걸이가 설치된 지점 안으로 무단 진입하는 등의 사고를 미연에 방지하기 위한 접지걸이용 반사판에 관한 것이다.
평판 형상이며 빛을 반사하는 반사부를 구비한 반사판, 상기 반사판의 일측에 장착되어 접지걸이에 반사판을 고정시키는 클램프를 구비하여 구성되며, 상기 반사부는 요철 형상으로 형성되어 있는 것을 특징으로 한다.The present invention installs a grounding hook in a railway line or a line after a power cut in a railway station or a railway line, and then the worker who works at night falls down to the grounding hook due to a dark field of view, or after the work is completed, the grounding hook is not found. The present invention relates to a reflector for a grounding hook to prevent an accident such as delaying an accident or an unauthorized person entering into a point where a grounding hook is installed.
A reflector plate having a flat plate shape and having a reflecting part for reflecting light, and a clamp mounted on one side of the reflecting plate to fix the reflecting plate to a ground hook, the reflecting part is characterized in that it is formed in an uneven shape.

Description

접지걸이용 반사판{Reflecting plate for earthing hanger}Reflecting plate for earthing hanger

본 고안은 접지걸이용 반사판에 관한 것으로, 보다 상세하게는, 철도 역구내 또는 선로에서 야간작업을 하는 작업자 또는 장비 운전자가 접지걸이 위치를 용이하게 확인할 수 있도록 함으로써, 접지걸이의 위치 확인 실패로 인한 각종 안전사고의 발생을 방지하기 위한 접지걸이용 반사판에 관한 것이다.
The present invention relates to a reflector for a grounding hook, and more particularly, by allowing a worker or an equipment operator working at night in a railway station or a track to easily check the position of the grounding hook, It relates to a grounding plate reflector for preventing the occurrence of various safety accidents.

철도 역구내 또는 선로에서 전차선로의 신설 및 보수 점검과 궤도회로의 점검작업시에는 단전 후 작업을 하는데, 접지걸이는 작업중 불의의 급전으로 인하여 작업자의 감전사고 및 안전사고 방지를 위한 작업안전 수단의 하나로, 작업구간의 전철주 또는 전선로에 양단에 설치한다. 그런데, 주간에는 시야가 확보되기 때문에 작업 후 또는 작업중에 접지걸이의 설치위치를 빨리 확인할 수 있어서 문제가 없지만, 도 1에 첨부된 사진에서 보듯이, 야간에는 사방이 깜깜하여 시야가 확보되지 않기 때문에 접지걸이의 위치를 인지할 수 없어서 감전사고나 안전사고 등 많은 문제가 발생하고 있다.
During the construction and inspection of tram lines and the inspection of track circuits in railway stations or on tracks, work is carried out after disconnection.The grounding hook is provided with work safety measures to prevent worker's electric shock and safety accidents due to inadvertent feeding during operation. One is to be installed at both ends in the railway line or the electric line of the work section. By the way, since the field of view is secured during the day, the installation position of the grounding hook can be quickly confirmed after the work or during the operation, but as shown in the photograph attached to FIG. 1, since all sides are dark at night, the field of view is not secured. Since the location of the grounding hook cannot be recognized, many problems, such as an electric shock or safety accident, occur.

철도의 특성상 열차 운행에 지장을 주지 않기 위하여 야간작업을 할 경우가 많은데, 지금까지는 어둠 속에서도 접지걸이의 설치위치를 인지할 수 있는 적절한 수단이 없이 장비의 헤드라이트나 작업자가 가지고 다니는 손전등에 의존하여 접지걸이의 위치를 확인하고 있었기 때문에 선로 측면에 설치된 접지걸이의 위치를 쉽게 인지할 수 없어서, 야간에 접지걸이를 설치하고 작업하고 있는 중에 운전취급 부주의와 실수 등으로 각종 동력 또는 수동취급 운행장비가 접지걸이가 설치된 지점 안으로 무단 진입하는 등의 안전사고가 발생하고 있을 뿐만 아니라 작업을 완료하고 나서, 어둠으로 인하여 작업자가 접지걸이의 설치 위치를 인지하지 못해 접지걸이에 걸려 넘어져서 다치는 안전사고가 빈번하게 발생하고 있으며, 접지걸이 설치 위치를 찾지 못해 작업을 마친 후 급전을 지연시키는 경우도 발생하는 등 많은 문제가 있는바, 야간에도 접지걸이의 설치위치를 쉽게 인지할 수 있는 수단의 출현이 시급하다고 하겠다.
철도 선로의 접지걸이에 관해서는 특허 제1055498호 "원격감시가 가능한 궤도단락기 일체형 전차선 접지걸이"와, 본 출원인이 출원한 실용신안 출원 제2011-4471호 "전차 선로용 접지걸이"와 같은 기술이 있으나, 이러한 기술들도 상기와 같은 문제점을 해결할 수 없었다.
Due to the nature of the railway, there are many cases of working at night in order not to interfere with the train operation. Until now, depending on the headlights of the equipment or the flashlight carried by the operator without the proper means of knowing the installation position of the ground hook even in the dark. Since the position of the grounding hook was checked, the position of the grounding hook installed on the side of the track could not be easily recognized, and various power or manual handling equipment was installed due to inadvertent handling and mistake while driving and installing the grounding hook at night. Not only are safety accidents such as unauthorized entry into the point where the grounding hook is installed, but also after the work is completed, safety accidents caused by falling to the grounding hook due to darkness and causing injury to workers are frequently caused. Is happening, and the grounding hook If delaying the power supply after a year that it will also generate jobs and many have a problem bar, even the emergence of urgent means that you can easily recognize the installation location of the rack ground that night.
Regarding the grounding hook of the railroad, technologies such as Patent No. 1055498, "Track track-integrated catenary grounding hook for remote monitoring," and Utility Model Application No. 2011-4471, "Grounding hook for train line," filed by the present applicant However, these techniques also could not solve the above problems.

본 고안은 상기와 같은 필요에 의해 안출된 것으로, 본 고안의 목적은, 철도 역구내 또는 선로에서 단전 후 전철주 또는 전선로에 접지걸이를 설치하고 나서 야간작업을 하는 작업자가 어두운 시야로 인해 접지걸이에 걸려 넘어지거나, 작업 완료 후 접지걸이 설치 위치를 찾지 못해 급전을 지연시키는 사고, 또는 장비 운전자가 접지걸이가 설치된 지점 안으로 무단 진입하는 사고 등 야간에 접지걸이의 위치 확인 실패로 인한 각종 안전사고의 발생을 방지하기 위한 접지걸이용 반사판을 제공하기 위한 것이다.
The present invention is devised by the needs as described above, the object of the present invention is to install the grounding hook in the railway line or the railway line after the power cut in the railway station or the track, and then the worker who works at night due to the dark field of view Various safety accidents due to the failure to check the position of the grounding hook at night, such as an accident of falling down, delaying the power supply because the grounding hook installation location is not found after the work is completed, or an accident where the operator of the equipment enters the point where the grounding hook is installed. It is to provide a reflector for a ground hook to prevent the occurrence.

상기와 같은 과제 해결을 위하여 본 고안에 따른 접지걸이용 반사판은, 평판 형상이며 빛을 반사하는 반사부를 구비한 반사판, 상기 반사판의 일측 가장자리에 장착되어 접지걸이에 반사판을 고정시키는 클램프를 구비하여 구성되며, 상기 반사부는 요철 형상으로 형성되어 있는 것을 특징으로 한다.
In order to solve the above problems, the grounding plate reflector according to the present invention includes a reflector plate having a flat plate shape and reflecting light, and a clamp mounted on one edge of the reflecting plate to fix the reflecting plate to the grounding hook. The reflector is characterized in that it is formed in a concave-convex shape.

바람직하게는, 반사부는 평판 형상 반사판의 일면 또는 양면 모두에 구비되고, 반사부에는 축광물질이 도포되어 있다.Preferably, the reflecting portion is provided on one or both surfaces of the flat reflecting plate, and the photosensitive material is coated on the reflecting portion.

바람직하게는, 클램프는, 접지걸이를 감싸면서 체결되는 한 쌍의 가동부, 한 쌍의 가동부를 서로 회동 가능하도록 연결하는 힌지, 한 쌍의 가동부의 일단이 접하도록 탄성 지지하는 스프링을 포함하여 구성된다.
Preferably, the clamp comprises a pair of movable parts which are fastened while wrapping the grounding hook, a hinge connecting the pair of movable parts to be rotatable with each other, and a spring that elastically supports one end of the pair of movable parts to be in contact with each other. .

상기와 같은 특징을 갖는 본 고안에 따른 접지걸이용 반사판은, 특히 야간에 접지걸이의 위치를 용이하게 인지할 수 있도록 함으로써, 작업구간을 인식시켜 역구내 또는 선로에서 단전 후 전철주 또는 전선로에 접지걸이를 설치하고 야간작업을 하는 작업자가 접지걸이에 걸려 넘어지면서 생기는 안전사고나 작업 완료 후 접지걸이 설치 위치를 찾지 못해 급전을 지연시키는 상황을 방지할 수 있고, 반사판에 의해 장비 운전자에게 접지걸이가 설치된 지점의 위치를 쉽게 인식시켜 각종 동력 또는 수동취급 운행장비가 접지걸이가 설치된 지점 안으로 무단 진입하는 등의 접지걸이 위치 파악 실패로 인한 직무사고와 안전사고의 발생을 방지할 수 있다.
The grounding plate reflector according to the present invention having the characteristics as described above, by allowing the position of the grounding hook to be easily recognized, especially at night, by recognizing the work period and grounding in the railway line or the electric line after the power failure in the station or track It is possible to prevent safety accidents caused by a worker who installs the hanger and the night work trips over the ground hook, or delays the feeding because the ground hook cannot be found after the work is completed. By easily recognizing the location of the installed point, it is possible to prevent the occurrence of job accidents and safety accidents due to the failure of the positioning of the grounding hanger such as unauthorized entry of various power or manual handling equipment into the point where the grounding hanger is installed.

도 1은 야간에 본 고안에 따른 접지걸이용 반사판을 설치하기 전 상태를 촬영한 사진이다.
도 2는 야간에 본 고안에 따른 접지걸이용 반사판을 설치한 상태를 촬영한 사진이다.
도 3은 본 고안에 따른 접지걸이용 반사판을 설치한 상태를 도시한 도면이다.
도 4는 도 3에서 반사판을 도시한 사시도이다.
도 5는 클램프의 일실시예를 도시한 도면이다.1 is a photograph taken before installing the grounding plate reflector according to the present invention at night.
Figure 2 is a photograph taken a state in which a reflector for a ground hook according to the present invention is installed at night.
3 is a view showing a state in which a reflective plate for a ground hook according to the present invention is installed.
4 is a perspective view illustrating the reflector in FIG. 3.
5 illustrates one embodiment of a clamp.

본 고안의 가장 큰 기술적 특징은, 야간에 작업자나 장비운전자가 접지걸이의 설치위치를 용이하게 인지할 수 있도록 빛을 반사하는 반사판을 설치한다는 것인데, 반사판은 단순히 빛을 반사만 할 수도 있지만, 축광물질을 도포하여 빛이 없더라도 위치를 인지할 수 있도록 축적된 빛을 발산할 수도 있으며, 반사판의 표면에 요철을 형성하여 입사된 빛을 굴절시켜 넓은 범위에서 인지할 수 있도록 한다는 점이다.
The biggest technical feature of the present invention is to install a reflector reflecting light so that the operator or equipment operator can easily recognize the installation position of the ground hook at night. The reflector may simply reflect the light, Even if there is no light by applying a material, the accumulated light may be emitted so that the position can be recognized, and irregularities are formed on the surface of the reflecting plate so that the incident light is refracted to be recognized in a wide range.

본 고안의 접지걸이용 반사판은, 반사판(20)과 상기 반사판(20)을 접지걸이(10)에 고정시키기 위한 클램프(23)로 구성된다.
The ground hook reflector of the present invention includes a reflector 20 and a clamp 23 for fixing the reflector 20 to the ground hook 10.

반사판(20)은 평판 형상의 플레이트(21)로, 플레이트(21)의 가장자리를 제외한 부분에는 빛을 반사하는 반사부(22)를 구비하는데, 반사부(22)는 플레이트(21) 전체에 형성할 수도 있고, 반사부(22)는 플레이트(21)의 일면 또는 양면 모두에 형성할 수도 있다. 반사부(22)는 손전등이나 헤드라이트 등의 빛을 반사시키기 위한 부분인데, 도시하지는 않았지만, 표면에 요철 형상을 형성하여 빛을 굴절시켜 인지할 수 있는 범위와 밝기를 향상시킬 수도 있다.
Reflector plate 20 is a flat plate-like plate 21, except for the edge of the plate 21 has a reflector 22 for reflecting light, the reflector 22 is formed on the entire plate 21 The reflecting portion 22 may be formed on one surface or both surfaces of the plate 21. The reflector 22 is a portion for reflecting light such as a flashlight or a headlight. Although not illustrated, the reflector 22 may form an uneven shape on the surface to refract the light to improve the range and brightness of the light.

또한, 반사판(22)에는 표면에 축광(畜光)물질을 도포하여 사용할 수도 있는데, 축광물질은 축광재를 혼입한 축광 잉크를 실크인쇄 등으로 반사판의 플레이트(21) 표면에 직접 도포하거나, 또는 접착제가 도포된 스티커 상에 축광 잉크를 도포한 것을 붙이는 방식으로 형성하고, 본 고안의 대상은 축광물질이 아니기 때문에 축광물질의 성분에 대하여 구체적으로 기재하지는 않으며, 축광물질의 성분이나 색상은 통상의 것에서 필요에 따라 선택하여 사용할 수 있을 것이다.
In addition, the reflecting plate 22 may be used by applying a photoluminescent material on the surface, the photoluminescent material is directly applied to the surface of the plate 21 of the reflecting plate by silk printing or the like photoluminescent ink incorporating the photoluminescent material, or adhesive Is formed by attaching the coating of the photoluminescent ink on the sticker to which the coating is applied. Since the object of the present invention is not a photoluminescent material, the component of the photoluminescent material is not described in detail, and the component or color of the photoluminescent material is You can choose to use it as needed.

클램프(23)는 반사판 플레이트(21)의 일측 가장자리에 결합 설치되어 접지걸이(10)에 반사판(20)을 고정시키는 일종의 집게인데, 클램프(23)는 플레이트(21)의 일측 가장자리에 한 개만 설치할 수도 있지만 일측 가장자리를 따라 2∼3개 복수로 설치할 수도 있다.
The clamp 23 is a type of clamp that is coupled to one edge of the reflector plate 21 to fix the reflector 20 to the ground hook 10, and only one clamp 23 is installed at one edge of the plate 21. Although it may be sufficient, it can also provide two or three pieces along one edge.

클램프(23)는 한 쌍의 가동부(23a, 23b)와 힌지(23c) 및 스프링(23d)으로 구성되는데, 가동부(23a, 23b)는 작업자가 손으로 잡고 벌려서 접지걸이(10)를 감싸도록 하여 접지걸이(10)에 체결하는 부분이고, 힌지(23c)는 한 쌍의 가동부(23a, 23b)를 서로 회동 가능하도록 연결하는 구성이며, 스프링(23d)은 한 쌍의 가동부(23a, 23b)의 일단이 접하도록 탄성 지지하도록 가동부(23a, 23b)의 타단(즉, 반사판이 위치하는 부분)에 결합되어 구성된다. 스프링(23d)은 도 5에 일실시예를 도시했지만, 반사판(20)을 접지걸이(10)에 부착 설치할 수 있는 구성이라면 어떤 형태든 상관없다.
The clamp 23 is composed of a pair of movable parts 23a and 23b, a hinge 23c and a spring 23d, and the movable parts 23a and 23b are held by the worker by hand to open and surround the ground hook 10. It is a part which is fastened to the grounding hook 10, the hinge 23c is a structure which connects a pair of movable parts 23a and 23b so that rotation is possible, and the spring 23d is a pair of movable parts 23a and 23b. It is comprised by being coupled to the other end (namely, the part in which a reflecting plate is located) of the movable parts 23a and 23b so that one end may elastically support it. Although the spring 23d has shown an embodiment in FIG. 5, any form can be used as long as the spring 23d can be attached to the ground hook 10.

이상의 설명은 본 고안의 기술 사항을 예시적으로 설명한 것에 불과한 것으로, 본 고안이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 고안의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서 본 명세서에 개시된 실시예들은 본 고안의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이런 실시예에 의하여 본 고안의 기술 사상의 범위가 한정되는 것은 아니다. 본 고안의 보호범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 고안의 권리범위에 포함되는 것으로 해석되어야 할 것이다.
The above description is merely illustrative of the technical details of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present specification are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

10 : 접지걸이
20 : 반사판 21 : 플레이트
22 : 반사부 23 : 클램프
23a, 23b : 가동부 23c : 힌지
23d : 스프링10: grounding hook
20: reflector 21: plate
22: reflector 23: clamp
23a, 23b: movable part 23c: hinge
23d: spring

Claims (7)

평판 형상이며, 빛을 반사하는 반사부를 구비한 반사판;
상기 반사판의 일측에 장착되어 접지걸이에 반사판을 고정시키는 클램프;
를 구비하여 구성되며, 상기 반사부는 요철 형상으로 형성되어 있는 것을 특징으로 하는 접지걸이용 반사판.
A reflector having a flat plate shape and having a reflector for reflecting light;
A clamp mounted on one side of the reflector to fix the reflector to a ground hook;
It is configured to include, wherein the reflector is a reflector for a ground hook, characterized in that formed in the concave-convex shape.
제1항에 있어서,
상기 반사부는, 상기 평판 형상 반사판의 일면에만 구비되는 것을 특징으로 하는 접지걸이용 반사판.
The method of claim 1,
The reflector is a reflector for a ground hook, characterized in that provided on only one surface of the flat reflector.
제1항에 있어서,
상기 반사부는, 상기 평판 형상 반사판의 양면 모두에 구비되는 것을 특징으로 하는 접지걸이용 반사판.
The method of claim 1,
The reflector is a grounding plate reflector, characterized in that provided on both sides of the flat plate reflector.
삭제delete 제1항에 있어서,
상기 반사부에는 축광물질이 도포되어 있는 것을 특징으로 하는 접지걸이용 반사판.
The method of claim 1,
The reflective plate for a ground hook, characterized in that the photosensitive material is coated on the reflecting portion.
제1항에 있어서, 상기 클램프는,
상기 접지걸이를 감싸면서 체결되는 한 쌍의 가동부;
상기 한 쌍의 가동부를 서로 회동 가능하도록 연결하는 힌지;
상기 한 쌍의 가동부의 일단이 접하도록 탄성 지지하는 스프링;
을 포함하여 구성되는 것을 특징으로 하는 접지걸이용 반사판.
The method of claim 1, wherein the clamp,
A pair of movable parts fastened while wrapping the ground hook;
A hinge for rotatably connecting the pair of movable parts to each other;
A spring that elastically supports one end of the pair of movable parts to be in contact;
Grounding plate reflector, characterized in that comprising a.
제1항에 있어서,
상기 클램프는 상기 반사판에 2∼3개 설치되는 것을 특징으로 하는 접지걸이용 반사판.The method of claim 1,
And 2 to 3 clamps are installed on the reflecting plate.
KR2020110008440U 2011-09-20 2011-09-20 Reflecting plate for earthing hanger KR200468645Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021189086A1 (en) * 2020-03-19 2021-09-23 Transnet Soc Ltd Visual indicator device, system for monitoring the visual indicator device and method thereof

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Publication number Priority date Publication date Assignee Title
KR200287815Y1 (en) * 2002-05-22 2002-09-05 주식회사 하이큐 Safety fence for construction site
JP2002275801A (en) 2001-03-12 2002-09-25 Yasukazu Maeda Reflecting plate of railway line
JP2003207562A (en) 2002-01-11 2003-07-25 Nippon Signal Co Ltd:The Obstacle detection device
KR101055498B1 (en) * 2009-08-10 2011-08-08 서울특별시도시철도공사 Ground track hook with integrated track short circuit for remote monitoring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002275801A (en) 2001-03-12 2002-09-25 Yasukazu Maeda Reflecting plate of railway line
JP2003207562A (en) 2002-01-11 2003-07-25 Nippon Signal Co Ltd:The Obstacle detection device
KR200287815Y1 (en) * 2002-05-22 2002-09-05 주식회사 하이큐 Safety fence for construction site
KR101055498B1 (en) * 2009-08-10 2011-08-08 서울특별시도시철도공사 Ground track hook with integrated track short circuit for remote monitoring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021189086A1 (en) * 2020-03-19 2021-09-23 Transnet Soc Ltd Visual indicator device, system for monitoring the visual indicator device and method thereof

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