KR100686618B1 - Cable tray - Google Patents

Cable tray Download PDF

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Publication number
KR100686618B1
KR100686618B1 KR1020040096053A KR20040096053A KR100686618B1 KR 100686618 B1 KR100686618 B1 KR 100686618B1 KR 1020040096053 A KR1020040096053 A KR 1020040096053A KR 20040096053 A KR20040096053 A KR 20040096053A KR 100686618 B1 KR100686618 B1 KR 100686618B1
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KR
South Korea
Prior art keywords
horizontal
hole
cable tray
rail
rail member
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KR1020040096053A
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Korean (ko)
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KR20060056831A (en
Inventor
김병길
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김병길
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Priority to KR1020040096053A priority Critical patent/KR100686618B1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0456—Ladders or other supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0608—Joints for connecting non cylindrical conduits, e.g. channels

Abstract

본 발명 케이블 트레이는 체결공(112)이 형성된 레일부재(110)와; 상기 레일부재(110)의 앙내측에 가로설치되며, 저부가 요입되어 요(凹)형의 요입부(122)를 형성한 가로부재(120)와; 상기 가로부재(120) 저부의 요입부(122)에 삽착됨과 동시에 상기 레일부재(110)에 형성된 체결공(112)을 통하여 체착되도록 그 중심에 나사공(132)을 형성한 결합부재(130); 및 상기 레일부재(110)의 외측에서 상기 가로대(120)에 삽착된 결합부재(130)를 체결하기 위한 체결구(140)로 이루어지며, 상기 가로부재(120)는 요입된 양측 벽부의 상연부를 따라 수평연부(126)를 형성하고, 그 수평연부(126)와 양측 벽부의 연결부에 체착공(124)을 형성하며, 상기 가로부재(120)는 그 요입부(122) 바닥측에 상기 결합부재(130)가 지지되는 지지공(128)을 형성하며, 상기 결합부재(130)는 소정 두께를 갖는 판상체의 중심부에 나사공(132)을 형성함과 동시에 상단에 지지돌부(134)를 형성하고, 양측변은 상기 체착공(124)에 체착/지지되는 턱부(136)를 형성한다.The cable tray of the present invention is a rail member 110, the fastening hole 112 is formed; A horizontal member 120 installed horizontally on the inner side of the rail member 110 and having a bottom recessed to form a recessed recess 122 of a yaw type; The coupling member 130 is inserted into the recess 122 of the bottom of the horizontal member 120 and the screw member 132 is formed at the center thereof so as to be fitted through the fastening hole 112 formed in the rail member 110. ; And a fastener 140 for fastening the coupling member 130 inserted into the cross member 120 from the outside of the rail member 110, wherein the horizontal member 120 has an upper edge portion of the recessed both side wall portions. A horizontal edge portion 126 is formed along the surface, and a landing hole 124 is formed at a connection portion between the horizontal edge portion 126 and both side walls, and the horizontal member 120 has the coupling member at the bottom of the recess portion 122. A support hole 128 is formed to support the 130, and the coupling member 130 forms a screw hole 132 at the center of the plate body having a predetermined thickness and at the same time, forms a support protrusion 134 at the top. And, both sides form a jaw portion 136 to be held / supported in the landing hole 124.

케이블 트레이.cable tray.

Description

케이블 트레이{Cable tray}Cable tray

도 1은 종래 케이블 트레이의 일예를 나타내는 사시도이고,1 is a perspective view showing an example of a conventional cable tray,

도 2는 본 발명 케이블 트레이의 사시도이며,2 is a perspective view of the cable tray of the present invention;

도 3b,도 3b, 도 3c는 본 발명 케이블 트레이의 레일부재, 가로부재 및 결합부재의 발췌사시도이고,Figure 3b, Figure 3b, Figure 3c is an exploded perspective view of the rail member, the horizontal member and the coupling member of the cable tray of the present invention,

도 4는 본 발명 케이블 트레이의 분해 사시도이고,4 is an exploded perspective view of the cable tray of the present invention;

도 5는 본 발명 케이블 트레이의 결합상태 단면도이다.5 is a cross-sectional view of the bonding state of the cable tray of the present invention.

※도면의 주요 부분에 대한 부호의 설명※ Explanation of code for main part of drawing

100:케이블 트레이, 110:레일부재, 112:체결공, 114:보강돌부,100: cable tray, 110: rail member, 112: fastener, 114: reinforcement,

120:가로부재, 122: 요입부, 124: 체착공, 126:수평연부, 128:지지공,120: horizontal member, 122: indentation part, 124: landing hole, 126: horizontal edge portion, 128: support hole,

130:결합부재, 132:나사공, 134:지지돌부, 136:턱부, 140: 체결구,130: coupling member, 132: screw hole, 134: support protrusion, 136: jaw, 140: fastener,

본 발명은 케이블 트레이에 관한 것으로, 특히, 현장 조립/시공이 가능하도록 함과 아울러 레일부재에 결합되는 가로대의 받침강도를 보강한 케이블 트레이에 관한 것이다.The present invention relates to a cable tray, and more particularly, to a cable tray that enables the on-site assembly / construction, and reinforces the support strength of the cross coupled to the rail member.

종래에 알려진 케이블 트레이는 여러가지 타입이 있으나, 첨부 도면 도 1에서 도시하는 바와같은 케이블 트레이가 흔하게 사용되어 오고 있다.There are many types of cable trays known in the art, but cable trays as shown in FIG. 1 have been commonly used.

이 케이블 트레이는 가로대(12)와 레일(11)을 용접으로 양단을 연결하고 있으나, 용접에 따른 손상부분이 발생할 뿐 아니라 일일이 시공현장에서 용접장치를 동원하여야 하는 번거로움이 있었다.The cable tray is connected to both ends by welding the crossbar 12 and the rail 11, but there was a need to mobilize the welding apparatus at the construction site as well as the damage caused by the welding.

혹은 가로대와 레일이 접촉하는 부분을 볼팅하는 경우도 있으나, 레일에 접촉하는 부붐을 가로대가 접속이 되도록 별도 홈가공이 이루어져야 하며, 여기에 볼팅부재로서 볼팅 결합하게되나. 볼팅 결합부분의 버팀 강도가 약하여 대부분 상기와 같은 번거로움을 감수하면서 용접으로 시공 설비하게 된다.Alternatively, the bolt may be bolted to the part where the rail and the rail contact, but a separate groove processing must be made so that the rail is connected to the subboom in contact with the rail, and the bolt is coupled to the bolt as a bolting member. Since the strength of the bolted joints is weak, most of them will be installed by welding while taking the hassle as above.

본 발명은 이와같은 종래의 용접상의 번거로움과 단점들을 개선하여 간단한 부품들로서 현장시공이 이루어짐과 아울러 그 결합 강도가 보강되는 케이블 트레이 조립구조를 제공하는 데에 그 목적이 있다.The present invention aims to provide a cable tray assembly structure in which field construction is performed as simple components and the bond strength thereof is reinforced by improving the inconvenience and disadvantages of conventional welding.

이러한 본 발명 케이블 트레이는 레일부재와 가로부재를 볼팅/체결함에 있어 결합부재를 사이에 두고 체결/고정함으로서 그 조립/체결이 간단하고 용이하게 함에 그 목적이 있으며, 이러한 결합부재의 지지상태가 안정적으로 이루어지도록 한 케이블 트레이 조립구조를 제공하는 데에도 그 목적이 있다.The cable tray of the present invention has a purpose to simplify and facilitate the assembly / fastening by fastening / fixing the coupling between the rail member and the horizontal member across the coupling member, the support state of the coupling member is stable It is also an object of the present invention to provide a cable tray assembly structure to be made.

본 발명 케이블 트레이는 가로부재와 레일부재의 연결시 하방을 향한 받침강도가 가로부재의 요입부와 레일부재의 보강돌부로 인해 보강된 케이블 트레이를 제공하는 데에도 그 목적이 있다.The cable tray of the present invention also has an object to provide a cable tray reinforced with the support strength of the downward member when the horizontal member and the rail member is connected due to the recessed portion of the horizontal member and the rail member.

상기한 목적을 달성하기 위한 케이블 트레이는 체결공이 형성된 레일부재와; 상기 레일부재의 양내측에 가로설치되며, 저부가 요입되어 역요(凹)형의 요입부를 형성한 가로부재와; 상기 가로부재 저부의 요입부에 삽착됨과 동시에 상기 레일에 형성된 체결공을 통하여 체착되도록 그 중심부에 나사공을 형성한 결합부재; 및 상기 레일의 외측에서 상기 가로대에 삽착된 결합부재를 체결하기 위한 체결구로 이루어지는 케이블 트레이로서 달성된다.Cable tray for achieving the above object is a rail member formed with a fastening hole; A horizontal member installed horizontally on both inner sides of the rail member and having a bottom recessed to form a recessed recessed portion; A coupling member having a screw hole formed at a central portion thereof to be inserted into a recess of the bottom of the horizontal member and to be fitted through a fastening hole formed in the rail; And a fastener for fastening the engaging member inserted into the crosspiece at the outside of the rail.

상기한 본 발명 케으블 트레이의 상기 가로부재는 요입된 양측 벽부의 상연부를 따라 수평연부를 형성하고, 그 수평연부와 양측 벽부의 연결부에 체착공을 형성함이 바람직하다.The horizontal member of the cable tray of the present invention described above forms a horizontal edge along the upper edge of the recessed both side wall portions, and forms a landing hole at the connection portion of the horizontal edge and both side wall portions.

상기한 목적을 달성하기 위한 본 발명 케이블 트레이의 상기 가로부재는 그 요입부 바닥측에 상기 결합부재가 지지되는 지지공을 형성하는 것을 특징으로 하는 케이블 트레이.The horizontal member of the cable tray of the present invention for achieving the above object is a cable tray, characterized in that for forming a support hole in which the coupling member is supported on the bottom side of the recess.

상기한 목적을 달성하기 위한 상기 결합부재는 소정 두께를 갖는 판상체의 중심부에 나사공을 형성함과 동시에 상단에 지지돌부를 형성하고, 양측변은 상기 체착공에 체착/지지되는 턱부를 형성함이 바람직하다.The coupling member for achieving the above object is to form a screw hole in the center of the plate-like body having a predetermined thickness and at the same time to form a support protrusion on the upper side, both sides form a jaw portion that is held / supported in the landing hole This is preferred.

상기한 목적을 달성하기 위한 본 발명 케이블 트레이의 상기 레일부재는 상기 가로부재와의 체결력을 보강하기 위하여 체결공 위에 상기 가로부재의 양단 요입부에 삽입되어 걸리는 보강돌부를 더 구비함이 바람직하다.The rail member of the cable tray of the present invention for achieving the above object is preferably further provided with reinforcing protrusions which are inserted into the recesses of both ends of the horizontal member on the fastening hole to reinforce the fastening force with the horizontal member.

이하 본 발명의 바람직한 실시예를 첨부 도면에 의거 구체적으로 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부 도면중 도 2는 도 1은 종래 케이블 트레이의 일예를 나타내는 사시도이고, 도 2는 본 발명 케이블 트레이의 사시도이며, 도 3a, 도 3b, 도 3c는 본 발명 케이블 트레이의 레일부재, 가로부재 및 결합부재의 발췌사시도이고, 도 4는 본 발명 케이블 트레이의 분해 사시도이다.2 is a perspective view showing an example of a conventional cable tray, Figure 2 is a perspective view of the cable tray of the present invention, Figures 3a, 3b, 3c is a rail member, horizontal member and Figure 4 is an exploded perspective view of the coupling member, Figure 4 is an exploded perspective view of the cable tray of the present invention.

상기 도면들에 의하면 본 발명 케이블 트레이는 크게 레일부재(110)와, 가로부재(120)와, 결합부재(130)와, 체결구(140)로 이루어진다.According to the drawings, the cable tray of the present invention comprises a rail member 110, a horizontal member 120, a coupling member 130, and a fastener 140.

레일부재(110)는 대략 ㄷ형 단면의 앵글이며, 소정의 간격을 두고 체결공(112)이 형성됨과 아울러 그 위에 보강돌부(114)를 형성하여서 된다. 이 보강부재(114)는 상기 가로부재(120)의 받침력을 보강하기 위하여 체결공(112) 위에 상기 가로부재(120)의 바닥이 걸리도록 돌출/형성되어 있다.The rail member 110 has an angle of approximately a c-shaped cross section, and fastening holes 112 are formed at predetermined intervals, and a reinforcement protrusion 114 is formed thereon. The reinforcing member 114 is protruded / formed so that the bottom of the horizontal member 120 is caught on the fastening hole 112 to reinforce the supporting force of the horizontal member 120.

상기 가로부재(130)는 상기 레일부재(110)의 양내측에 가로설치됨에 있어 상기 보강돌부(114)에 받쳐지도록 저부가 요입된 요(凹)형 단면의 요입부(122)를 형성한 긴 레일구조이며, 요입된 양측 벽부의 상연부는 외측으로 소정 폭으로 수평연장하여 소정의 수평연부(126)를 형성하며, 이 수평연부(126)와 양측 벽부의 연결부분에는 소정간격으로 체착공(124)을 형성하여서 된다.The horizontal member 130 is installed on both inner sides of the rail member 110, the long rail having a concave portion 122 of the concave-shaped cross-section recessed bottom portion to be supported by the reinforcement protrusion 114 The upper edge portion of the recessed both side wall portions extend horizontally outwardly with a predetermined width to form a predetermined horizontal edge portion 126, and the pit hole 124 is connected to the horizontal edge portion 126 and the side wall portion at predetermined intervals. It can be formed.

또한, 본 발명 상기한 상기 가로부재(120)는 그 요입부(122) 바닥측에 상기 결합부재(130)가 지지되는 지지공(128)을 형성하여서 된다.In addition, the horizontal member 120 of the present invention is to form a support hole 128 in which the coupling member 130 is supported at the bottom of the concave portion 122.

본 발명 케이블 트레이의 상기 결합부재(130)는 소정 두께를 갖는 판상체의 중심부에 나사공(132)을 형성함과 동시에 상단에 지지돌부(134)를 형성하고, 양측 변은 상기 체착공(124)에 체착/지지되는 턱부(136)를 형성하며, 상기 가로부재(120) 저부의 요입부(122)에 삽착됨과 동시에 상기 레일부재(110)에 형성된 체결공(112)을 통하여 체착된다.The coupling member 130 of the cable tray of the present invention forms a screw hole 132 at the center of the plate-like body having a predetermined thickness and at the same time forms a support protrusion 134 on the upper side, both sides of the mounting hole 124 The jaw portion 136 to be attached / supported is formed, and the jaw portion 136 is inserted into the recessed portion 122 of the bottom of the horizontal member 120, and at the same time, the jaw portion 136 is attached to the rail member 110.

본 발명 케이블 트레이의 상기 체결구(140)는 상기 레일부재(110)의 외측에서 상기 가로대(120)에 삽착된 결합부재(130)를 체결/고정하게 된다.The fastener 140 of the cable tray of the present invention is to fasten / fix the coupling member 130 inserted into the crosspiece 120 from the outside of the rail member 110.

첨부 도면중 도 5는 본 발명 케이블 트레이의 결합상태 단면도이다.Figure 5 of the accompanying drawings is a cross-sectional view of the coupling state of the cable tray of the present invention.

상기 도면에 따르는 본 발명 케이블 트레이는 양측 레일부재(110)사이에 가로부재(120)의 요입부(122)가 저면을 향하도록 놓은 뒤 그 양단을 각각 레일부재의 보강돌부(114)에 걸리도록 위치시킨다.The cable tray of the present invention according to the drawings is placed between the rail member 110 on both sides so that the concave portion 122 of the horizontal member 120 faces the bottom surface so that both ends thereof are caught by the reinforcing protrusions 114 of the rail member, respectively. Position it.

이러한 상태에서 가로부재는 하방을 향하여 이탈되지 않고 1차적 받침력이 발생한다. 이것은 케이블 트레이 현장 시공 초기 작업자들로 하여금 가로부재가 레일부재사이에서 받쳐져 이후 2차적 체결구 체결/조립을 용이하게 된다.In this state, the horizontal member does not deviate downwards and generates a primary bearing force. This facilitates the initial operation of the cable tray field workers so that the horizontal members are supported between the rail members, thereby facilitating secondary fastener fastening / assembly.

이후 체결구(140)를 레일부재(110)외측에서 체결하게 되면 가로부재(120) 저부에 안착/지지되어진 결합부재(130)에 체결구(140)가 나사맞춤되어 가로부재(120)가 강하게 조여져 체결되어진다.Then, when the fastener 140 is fastened from the outside of the rail member 110, the fastener 140 is screwed to the coupling member 130 seated / supported on the bottom of the horizontal member 120 so that the horizontal member 120 is strong. Tighten and tighten.

특히, 본 발명 레일부재(110)의 체결공(112)은 내측으로 요입되어 있으므로 체결구(140)의 머리부분이 레일부재(110)의 외측면에서 돌출하지 않아 매끄러운 면을 유지하게 되기도 하며, 또한, 도 5에서 도시하는 바와같이 결합부재(130)의 지지돌부(134)가 이 가로부재(120)의 지지공(128)에 견고하게 끼워짐과 동시에 턱부(136)가 체착공(124)에 안착/지지되어 있으므로 결합부재(130)의 나사공(132)을 레 일부재(110)를 관통한 체결구(140)가 나사맞춤으로 조여지더라도 결합부재(130)는 가로부재(120)와 함께 레일부재(110)의 양측 내벽을 강하게 밀착/지지하게 된다.In particular, since the fastening hole 112 of the rail member 110 of the present invention is recessed inward, the head of the fastener 140 does not protrude from the outer surface of the rail member 110 to maintain a smooth surface. In addition, as shown in FIG. 5, the support protrusion 134 of the coupling member 130 is firmly fitted into the support hole 128 of the horizontal member 120, and at the same time, the jaw portion 136 is the landing hole 124. Since the fastener 140 penetrating the screw hole 132 of the coupling member 130 through the part of the material member 110 is tightened by screwing, the coupling member 130 is connected to the horizontal member 120. Together, both sides of the inner wall of the rail member 110 are strongly adhered to / supported.

상술한 바와같이 본 발명 케이블 트레이는 그동안 가로부재와 레일부재의 연결방법을 조립하는 타입으로 할 경우 발생되는 강도문제를 해결하고, 용접으로 가로부재를 연결하는 경우 발생되는 현장시공상의 단점을 해결한 효과를 갖는다.As described above, the cable tray of the present invention solves the strength problem generated when the horizontal member and the rail member are connected to each other, and the shortcomings in the field construction caused when the horizontal member is connected by welding. Has an effect.

Claims (5)

삭제delete 삭제delete 삭제delete 케이블 트레이에 있어서,In the cable tray, 체결공(112)이 형성된 레일부재(110);Rail member 110, the fastening hole 112 is formed; 상기 레일부재(110)의 양 내측에 가로설치되며, 저부가 요입되어 요(凹)형 요입부(122)를 이루고, 그 요입부(122)에 지지공(128)을 형성하며, 양측 벽부의 상연부를 따라 수평연부(126)를 형성하되 양측 벽부와 연결하여 체착공(124)을 형성한 가로부재(120);Horizontally installed on both inner sides of the rail member 110, the bottom portion is recessed to form a yaw type recessed portion 122, the support hole 128 is formed in the recessed portion 122, the upper edge of both side wall portion Horizontal member 120 to form a horizontal edge portion 126 along the portion, but connected to both side wall portion to form a landing hole 124; 상기 가로부재(120) 저부에 삽착됨과 동시에 상기 레일부재(110)에 형성된 체결공(112)을 통하여 체착되도록 그 중심부에 나사공(132)을 형성하고, 상기 요입부(122)에 삽착되도록 상단에 지지돌부(134)를 형성하고, 양측면은 상기 체착공(124)에 체착/지지되는 턱부(136)를 형성한 결합부재(130); 및The screw hole 132 is formed at the center of the horizontal member 120 to be inserted into the bottom of the horizontal member 120 and is fixed through the fastening hole 112 formed in the rail member 110, and the upper end of the horizontal member 120 is inserted into the recessed part 122. Coupling member 130 is formed in the support protrusion 134, both sides formed a jaw portion 136 to be held / supported in the landing hole 124; And 상기 레일부재(110)의 외측에서 상기 가로대(120)에 삽착된 결합부재(130)를 체결하기 위한 체결구(140)를 포함하는 케이블 트레이.Cable tray including a fastener (140) for fastening the coupling member 130 inserted into the crosspiece 120 from the outside of the rail member (110). 케이블 트레이에 있어서,In the cable tray, 체결공(112)과, 이 체결공(112)위에 가로부재(120)의 바닥이 걸리도록 보강돌부(114)를 형성한 레일부재(110);A fastening hole 112 and a rail member 110 having a reinforcing protrusion 114 formed to cover the bottom of the horizontal member 120 on the fastening hole 112; 상기 레일부재(110)의 양내측에 가로설치되며, 저부가 요(凹)형의 요입부(122)를 이루는 가로부재(120);Horizontal members 120 which are horizontally installed at both inner sides of the rail member 110 and whose bottom part comprises a recessed part 122 of a yaw type; 상기 가로부재(120) 요(凹)형 요입부(122)에 삽착됨과 동시에 상기 레일부재(110)에 형성된 체결공(112)을 통하여 체착되도록 그 중심부에 나사공(132)을 형성한 결합부재(130); 및Coupling member having a screw hole 132 formed in the center portion of the horizontal member 120 to be inserted into the concave inlet portion 122 and to be fitted through the fastening hole 112 formed in the rail member 110 130; And 상기 레일부재(110)의 외측에서 상기 가로대(120)에 삽착된 결합부재(130)를 체결하기 위한 체결구(140)를 포함하는 케이블 트레이.Cable tray including a fastener (140) for fastening the coupling member 130 inserted into the crosspiece 120 from the outside of the rail member (110).
KR1020040096053A 2004-11-22 2004-11-22 Cable tray KR100686618B1 (en)

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Cited By (1)

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KR101286606B1 (en) * 2013-03-29 2013-07-22 주식회사 제원에이스산업 Cable tray and method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100689873B1 (en) * 2006-11-10 2007-03-12 이동언 Combining structure of a cable tray
KR100941862B1 (en) * 2009-02-02 2010-02-11 주식회사 제원에이스산업 The method for fixing fastening rail and of cable tray
KR101180005B1 (en) * 2012-03-09 2012-09-05 조명래 Cable Tray

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KR940025607U (en) * 1993-04-08 1994-11-18 이재창 Cable tray for installation of wires, etc.
KR19980015175U (en) * 1996-09-06 1998-06-25 임용선 Tray for cable laying in building
KR19990034077U (en) * 1998-01-14 1999-08-16 임용선 cable tray
JP2003324834A (en) 2002-04-25 2003-11-14 Matsushita Electric Ind Co Ltd Cable duct and direct-acting unit
KR20050118746A (en) * 2004-06-15 2005-12-20 이종녕 Combined duct and cable tray

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KR940025607U (en) * 1993-04-08 1994-11-18 이재창 Cable tray for installation of wires, etc.
KR19980015175U (en) * 1996-09-06 1998-06-25 임용선 Tray for cable laying in building
KR19990034077U (en) * 1998-01-14 1999-08-16 임용선 cable tray
JP2003324834A (en) 2002-04-25 2003-11-14 Matsushita Electric Ind Co Ltd Cable duct and direct-acting unit
KR20050118746A (en) * 2004-06-15 2005-12-20 이종녕 Combined duct and cable tray

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101286606B1 (en) * 2013-03-29 2013-07-22 주식회사 제원에이스산업 Cable tray and method thereof

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