JP4234548B2 - trough - Google Patents

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Publication number
JP4234548B2
JP4234548B2 JP2003327075A JP2003327075A JP4234548B2 JP 4234548 B2 JP4234548 B2 JP 4234548B2 JP 2003327075 A JP2003327075 A JP 2003327075A JP 2003327075 A JP2003327075 A JP 2003327075A JP 4234548 B2 JP4234548 B2 JP 4234548B2
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Prior art keywords
trough
ground
trough body
bottom wall
side walls
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JP2005094960A (en
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裕 古川
則男 岸
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Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
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Priority to JP2003327075A priority Critical patent/JP4234548B2/en
Priority to PCT/JP2004/013427 priority patent/WO2005029663A1/en
Priority to KR1020067005551A priority patent/KR20060087572A/en
Priority to CNA2004800270185A priority patent/CN1853323A/en
Publication of JP2005094960A publication Critical patent/JP2005094960A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/26—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
    • 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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • 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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Electric Cable Installation (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

A cable trough comprises a trough body (4) having a bottom wall (8) and left and right side walls (10), a lid (6) closing the upper surface opening in the trough body (4), and a stabilizer disposed on the outer surface of each side wall (10), the stabilizer being a projection (12, 24, 28), such as fin or rod, or a recess (30) which is formed integrally with the side wall (10).

Description

本発明は、鉄道の線路脇等に布設されて、その内部にケーブル等を収納するのに用いられるトラフに関するものである。 The present invention relates to a trough that is laid on the side of a railway track or the like and used to store a cable or the like therein.

鉄道の線路脇等に布設されて、その内部に通信用ケーブルや電力ケーブル等が収納されるトラフは、左右の側壁と底壁とを有し上部が開口しているトラフ本体と、該トラフ本体の開口を塞ぐ蓋とからなっている。
このトラフを、例えば鉄道の線路に沿って線路脇に布設する場合、従来はコンクリート製トラフを使用することが多かった。
しかしながら最近では、この重いコンクリート製のトラフに代えて、軽量で布設作業がよいプラスチック製のトラフが使用されるようになってきている。またこのプラスチックとして、例えばプラスチック製品の廃材から再生した再生プラスチック、すなわちリサイクルプラスチックも度々使用されるようになって来ている。 A trough that is laid on the side of a railroad track and accommodates a communication cable, a power cable, and the like, has a trough body that has left and right side walls and a bottom wall and has an open top, and the trough body. It consists of a lid that closes the opening.
In the case where this trough is laid on the side of a track along a railroad track, for example, a concrete trough has often been used in the past.
However, recently, instead of the heavy concrete troughs, plastic troughs that are lightweight and have good installation work have been used. Also, as this plastic, for example, recycled plastic regenerated from waste plastic products, that is, recycled plastic, is often used.

この種のものとして、例えば４００〜５００ｍｍ程度の長さのプラスチック製のトラフ同士を、その端部で接続しながら長手方向に延長していくものが知られている（特許文献１）。
この特許文献１に記載のトラフのトラフ本体は、前述したようにプラスチック製で、その形状は、左右の側壁と底壁とからなり上部が開口する断面略Ｕ字状をしている。 As this type, for example, a plastic trough having a length of about 400 to 500 mm is extended in the longitudinal direction while being connected at its end (Patent Document 1).
The trough main body of the trough described in Patent Document 1 is made of plastic as described above, and has a substantially U-shaped cross section including left and right side walls and a bottom wall and having an upper opening.

特開２０００−５５２４０号公報JP 2000-55240 A

ところで前述した特許文献１に記載のトラフの場合、そのトラフ本体は前述したようにその形状は断面略Ｕ字状で傾き易い上に、材質はプラスチック製であって従来のコンクリート製のトラフ本体に比べてかなり軽量である。そのため、このトラフ本体を、例えば一部地中に埋設したり、あるいは地上に直置きした場合、このトラフ本体が側面方向の外力を受けたりすると容易に傾き、内部に収納しているケーブル等が損傷を受ける可能性がある。   By the way, in the case of the trough described in Patent Document 1 described above, the trough body has a substantially U-shaped cross section as described above, and is easily tilted. It is considerably lighter than that. Therefore, for example, when this trough body is partially embedded in the ground or directly placed on the ground, if this trough body receives an external force in the side direction, it easily tilts and the cable etc. stored inside Possible damage.

そこで本発明の目的は前述の問題に鑑み、トラフが地上に直置きされたり、少なくともその一部が地中に埋設されたりしても、傾き難くいトラフを提供することにある。 Accordingly, an object of the present invention is to provide a trough that is difficult to tilt even if the trough is placed directly on the ground or at least part of the trough is buried in the ground.

前記目的を達成すべく本願発明のトラフは、左右の側壁と底壁とを有し上部が開口しているトラフ本体と、該トラフ本体の前記上部の開口を塞ぐ蓋とからなり、前記トラフ本体の左右の側壁の外面には、前記トラフ本体が地面に直に布設された場合には、固定部品を掛けてこの固定部品を地面に固定でき、または地中に埋設された場合には、前記トラフ本体を傾けようとする力に対して抵抗として作用させることで、少なくとも前記底壁下面に略平行な平面を有する窪みが、前記トラフ本体の断面の中心に対して対称に、前記左右の側壁の最外面より外方に突出しないように側壁内に設けられていることを特徴とするものである。 In order to achieve the above object, the trough of the present invention comprises a trough main body having left and right side walls and a bottom wall and having an upper opening, and a lid for closing the upper opening of the trough main body. the outer surface of the left and right side walls of the case where the trough body is directly laid on the ground, when the fixing by multiplying the component can secure the mounting bracket to the ground, or buried in the ground, the By acting as a resistance against the force to tilt the trough body, at least a recess having a plane substantially parallel to the bottom wall bottom surface is symmetrical with respect to the center of the cross section of the trough body. It is provided in the side wall so as not to protrude outward from the outermost surface .

このようにしてなるトラフによれば、トラフ本体の左右の側壁の外面にはアンカー部品の固定部品を掛けてこの固定部品を地面に固定するための底壁下面に略平行な平面を有する窪みが設けられているので、もしこのトラフを地上に直に布設する場合には、前記窪みにアンカー部品の固定部品を掛けて、該アンカー部品で地面に確実に固定することができる。それ故、トラフ本体を傾けようとする外力が働いても、トラフが簡単に傾くことはなくなる。 According to the trough configured as described above, the outer surface of the left and right side walls of the trough main body is provided with a recess having a plane substantially parallel to the bottom surface of the bottom wall to hang a fixing part of the anchor part and fix the fixing part to the ground. If the trough is to be laid directly on the ground, it is possible to hang the anchor part fixing part on the recess and securely fix it to the ground with the anchor part. Therefore, even if an external force is applied to tilt the trough body, the trough will not easily tilt.

また、トラフ本体の左右の側壁の外面には、前記トラフ本体が地面に直に布設された場合または地中に埋設された場合のいずれかにおいてもトラフ本体が傾くのを防止する、前記底壁下面に略平行な平面を有する窪みが設けられているので、もしこのトラフを地中に半分ほど埋設して布設するような場合には、地中に埋設された場合に、トラフ本体の断面の中心に対して対称に設けられ、左右の側壁の最外面より外方に突出しないように側壁内に設けられた窪みがトラフ本体が傾こうとした場合の抵抗になり、トラフ本体の傾きを防止する。 Also, the bottom wall that prevents the trough body from tilting on the outer surfaces of the left and right side walls of the trough body when the trough body is laid directly on the ground or embedded in the ground. Since the bottom surface is provided with a recess having a substantially parallel plane, if the trough is embedded in the ground by about half , the cross section of the trough body is embedded when buried in the ground . It is provided symmetrically with respect to the center, and the recess provided in the side walls prevents the trough body from tilting so that it does not protrude outward from the outermost surfaces of the left and right side walls , preventing the trough body from tilting. To do.

以上のように本願発明によれば、トラフが地上に直置きされたり、少なくともその一部が地中に埋設されたりしても、容易に傾くことのないトラフを提供することができる。 As described above, according to the present invention, it is possible to provide a trough that does not easily tilt even if the trough is placed directly on the ground or at least part of the trough is buried in the ground.

以下に本願発明のトラフの各実施例及び参考発明の実施形態例を図１〜図５を用いて詳細に説明する。 Hereinafter, embodiments of the trough of the present invention and embodiments of the reference invention will be described in detail with reference to FIGS.

図１は本願発明のトラフの第一実施例を示すもので、地中に半埋設された状態を示す横断面図である。因みにこのトラフは全体がリサイクルプラスチックからなっている。
このトラフは左右の側壁８、８と底壁９とを有していて、その上部が開口しているトラフ本体１０と、該トラフ本体１０の開口を塞ぐ蓋１２とからなるもので、その特徴は、前記トラフ本体１０の左右の側壁８、８の外面には突起３０、３０が設けられている点にある。
より具体的には、第一実施例のトラフ本体１０においては、左右の側壁８、８の最下端に、トラフ本体１０の底壁９の下面に略平行な平面を有している突起３０、３０が、その平面を側壁８、８に対して略垂直に外方に突き出すように設けられているものである。 FIG. 1 shows a first embodiment of the trough of the present invention and is a cross-sectional view showing a state of being semi-buried in the ground. Incidentally, this trough is entirely made of recycled plastic.
This trough has left and right side walls 8 and 8 and a bottom wall 9, and is composed of a trough body 10 having an upper opening, and a lid 12 for closing the opening of the trough body 10. Is that projections 30 are provided on the outer surfaces of the left and right side walls 8 of the trough body 10.
More specifically, in the trough body 10 of the first embodiment, the protrusions 30 having a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 at the lowermost ends of the left and right side walls 8, 8, 30 is provided so that the plane protrudes outward substantially perpendicularly to the side walls 8 and 8.

このトラフ本体１０を図１に示すように地中に半埋設すると、前述した突起３０は地中に突き出た状態になっているため、このトラフに該トラフを傾けようとする力が働いたとしても、前記突起３０、３０が、この傾けようとする力に対して抵抗として作用するため、簡単にはトラフ本体１０が傾くことはない。
尚、図１で符号１５は地面の位置を示している。
ところでこの第一実施例のトラフを地面に直に布設する場合には、突起３０、３０の底壁９の下面に略平行な平面にアンカー部品の一端を引っ掛けて、しかる後アンカー部品を地面に固定すれば、トラフの傾きを防止できる。 When the trough body 10 is semi-embedded in the ground as shown in FIG. 1, the projection 30 is in a state of protruding into the ground, so that a force to tilt the trough acts on the trough. However, since the protrusions 30 and 30 act as resistance against the force to be inclined, the trough body 10 is not easily inclined.
In FIG. 1, reference numeral 15 indicates the position of the ground.
By the way, when laying the trough of the first embodiment directly on the ground, one end of the anchor part is hooked on a plane substantially parallel to the lower surface of the bottom wall 9 of the protrusions 30, 30, and then the anchor part is placed on the ground. If fixed, the inclination of the trough can be prevented.

図２に本願発明の第二実施例を示す。尚、前記第一実施例と同じ部分には同一番号を付し、詳細な説明は特徴点のみとし、それ以外は説明を省略する。
図２に示すトラフ本体１０は、左右の側壁８、８のほぼ中段にトラフ本体１０の底壁９の下面に略平行な平面を有する突起３０、３０が、この側壁８、８に対して略垂直に外方に突き出すように複数設けられているものである。
この第二実施例のトラフにあっても、このトラフを図１のように地中にその一部を埋設した場合には、突起３０がこのトラフを傾けようとする力に対して抵抗として作用するため、簡単にはトラフ本体１０が傾くことはない。
またこのトラフを地面の上に直に布設する場合には、突起３０にアンカー部品の一端を引っ掛けて、しかる後アンカー部品を地面に固定すれば、トラフの傾きを容易に防止できる。
（参考例） FIG. 2 shows a second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, detailed description is made only for the feature points, and description is omitted for other parts.
In the trough body 10 shown in FIG. 2, projections 30, 30 having a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 are substantially in the middle of the left and right side walls 8, 8. A plurality are provided so as to protrude outward vertically.
Even in the trough of the second embodiment, when a part of the trough is embedded in the ground as shown in FIG. 1, the projection 30 acts as a resistance against the force to tilt the trough. Therefore, the trough body 10 does not tilt easily.
Further, when the trough is laid directly on the ground, the inclination of the trough can be easily prevented by hooking one end of the anchor part to the protrusion 30 and then fixing the anchor part to the ground.
(Reference example)

図３に本願発明の参考例発明の実施形態例を示す。図３においても図１〜図２に示したものと同じ部分には同一番号を付し、詳細な説明は特徴点のみとし、それ以外は説明を省略することにする。
この参考例発明の実施形態例の特徴は、前述した２つの実施例と異なり、突起３０の形状が板状でなく円柱状になっているので、トラフ本体１０の底壁９の下面に略平行な平面を有していない点のみである。この参考例発明の実施形態例においては、前記２つの実施例と同じ効果を期待できるが、突起３０がトラフ本体１０の底壁９の下面に略平行な平面を有していないことから、その効果は前述した２つの実施例のものよりも若干劣るかも知れない。 FIG. 3 shows an embodiment of a reference example invention of the present invention. Also in FIG. 3, the same parts as those shown in FIGS. 1 to 2 are denoted by the same reference numerals, detailed description is made only for feature points, and description is omitted for other parts.
The feature of the embodiment of this reference example invention is different from the two embodiments described above, because the shape of the protrusion 30 is not a plate but a columnar shape, and is substantially parallel to the lower surface of the bottom wall 9 of the trough body 10. It is only a point that does not have a flat surface . In the example embodiment of the reference example invention, wherein at the same effect as the two embodiments can be expected, since the projection 30 does not have a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10, the The effect may be slightly inferior to that of the two embodiments described above.

図４に本願発明の第三実施例を示す。図４においても図１〜図３に示したものと同じ部分には同一番号を付し、詳細な説明は特徴点のみとする。
この第三実施例の特徴は、突起３０の形状がトラフ本体１０の底壁９の下面に略平行な平面からなるトラフの軸方向に平行な板状部分と垂直な板状部分からなっている点にある。
このトラフにあっては、前記第一実施例〜第二実施例と同様な効果に加えて、前記トラフの軸方向に垂直な板状部分が、何らかの力でトラフがその軸方向に動こうとした場合、抵抗として効果的に作用するので、トラフの傾きだけでなく軸方向の移動に対しても、これをより確実に防止できる。 FIG. 4 shows a third embodiment of the present invention. Also in FIG. 4, the same parts as those shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description is made only for feature points.
The feature of the third embodiment is that the shape of the protrusion 30 is composed of a plate-like portion perpendicular to the axial direction of the trough and a plate-like portion perpendicular to the lower surface of the bottom wall 9 of the trough body 10 . In the point.
In this trough, in addition to the effects similar to those of the first embodiment to the second embodiment, a plate-like portion perpendicular to the axial direction of the trough tries to move the trough in the axial direction by some force. In this case, since it acts effectively as a resistance, not only the inclination of the trough but also the movement in the axial direction can be prevented more reliably.

図５に本願発明の第四実施例を示す。この第四実施例の特徴は、前述した３つの実施例及び参考例発明と異なり、トラフ本体１０の底壁９の下面に略平行な平面を有する突起３０の代わりに左右の両側壁８、８の外面にトラフ本体１０の底壁９の下面に略平行な平面を有する窪み４０、４０を設けた点にある。このトラフ本体１０を図５に示すように地面に直に布設する場合には、例えば窪み４０のトラフ本体１０の底壁９の下面に略平行な平面の部分にアンカー部品の固定部品５１を掛けて、これをアンカーボルト５２で地面に固定すれば、トラフの傾きを容易に防止できる。
また地中に半埋設した場合には、前述した窪み４０に土が入り込み、これがトラフを傾けようとする力が働いた際抵抗として作用するため、トラフ本体１０が傾くことを防止できる。 FIG. 5 shows a fourth embodiment of the present invention. This feature of the fourth embodiment is different from the three examples and reference examples invention described above, side walls 8, 8 of the left and right instead of the projections 30 with a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 The depressions 40 and 40 having a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 are provided on the outer surface of the trough body 10 . When laying the trough body 10 directly on the ground as shown in FIG. 5, for example, the anchor part fixing part 51 is hung on a plane portion substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 of the recess 40. If this is fixed to the ground with anchor bolts 52, the inclination of the trough can be easily prevented.
Further, when semi-embedded in the ground, the soil enters into the above-described depression 40 and acts as a resistance when a force for tilting the trough acts, so that the trough body 10 can be prevented from tilting.

前述したいずれの実施例においても、トラフを地面に直に布設する場合でも、地中に埋設する場合でも、側壁に設けたトラフ本体１０の底壁９の下面に略平行な平面を有する突起３０あるいは窪み４０がトラフの傾きを防止するのに効果を発揮する。それ故、長期にわたってトラフ内のケーブル類を損傷させることなく保持できる。 In any of the embodiments described above, the projection 30 having a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 provided on the side wall, whether the trough is laid directly on the ground or embedded in the ground. Alternatively, the depression 40 is effective in preventing the trough from tilting. Therefore, the cables in the trough can be held without being damaged for a long time.

ところで前述した本願発明の各トラフは、布設作業性の観点からも重いコンクリート製のものより軽量なプラスチック製のトラフに適用するのが望ましく、さらには環境問題に配慮してリサイクルプラスチック製であればより好ましい。尚、トラフ本体１０をプラスチック製にした場合でも、蓋１２は風に飛ばされ難いように重いコンクリート製にする等、布設条件に応じて両者を適宜組み合わせることもできる。
また前述した各実施例においてはトラフ本体１０の底壁９の下面に略平行な平面を有する突起３０や窪み４０を左右の側壁８、８の外面に設けているが、布設場所によってトラフにあまり大きな外力が掛かる恐れがない場合には、この突起３０や窪み４０は一方の側壁８の外面にのみ設けるだけでもよい。 By the way, each trough of the present invention described above is preferably applied to a plastic trough that is lighter than a heavy concrete one from the viewpoint of laying workability. More preferred. Even when the trough body 10 is made of plastic, the lid 12 may be made of heavy concrete so as not to be blown away by the wind.
Further, in each of the embodiments described above, the projections 30 and the recesses 40 having a plane substantially parallel to the lower surface of the bottom wall 9 of the trough body 10 are provided on the outer surfaces of the left and right side walls 8, 8. If there is no fear of applying a large external force, the protrusion 30 and the recess 40 may be provided only on the outer surface of the one side wall 8.

本願発明のトラフの第一実施例を示すもので、布設された状態を示す横断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a first embodiment of a trough of the present invention, and is a cross-sectional view showing a laid state. 本願発明のトラフ本体の第二実施例を示す斜視図である。It is a perspective view which shows the 2nd Example of the trough main body of this invention. 参考例発明のトラフ本体の実施形態例を示す斜視図である。It is a perspective view which shows the embodiment example of the trough main body of reference example invention . 本願発明のトラフ本体の第三実施例を示す斜視図である。It is a perspective view which shows the 3rd Example of the trough main body of this invention. 本願発明のトラフの第四実施例を示すもので、布設された状態を示す横断面図である。It is a cross-sectional view showing a fourth embodiment of the trough of the present invention and showing a laid state.

符号の説明Explanation of symbols

８ 側壁
９ 底壁
１０ トラフ本体
１２ 蓋
３０ 突起
４０ 窪み
8 Side wall 9 Bottom wall 10 Trough body 12 Lid 30 Protrusion 40 Dimple

Claims (1)

左右の側壁と底壁とを有し上部が開口しているトラフ本体と、該トラフ本体の前記上部の開口を塞ぐ蓋とからなり、前記トラフ本体の左右の側壁の外面には、前記トラフ本体が地面に直に布設された場合には、固定部品を掛けてこの固定部品を地面に固定でき、または地中に埋設された場合には、前記トラフ本体を傾けようとする力に対して抵抗として作用させることができるトラフで、少なくとも前記底壁下面に略平行な平面を有する窪みが、前記トラフ本体の断面の中心に対して対称に、前記左右の側壁の最外面より外方に突出しないように側壁内に設けられていることを特徴とするトラフ。 A trough body having left and right side walls and a bottom wall and having an upper opening; and a lid that closes the upper opening of the trough body, and the outer surface of the left and right side walls of the trough body has the trough body Is installed directly on the ground, it can be fixed on the ground by hanging a fixing part, or when embedded in the ground, it resists the force of tilting the trough body. A trough that can act as a recess , and at least a recess having a plane substantially parallel to the lower surface of the bottom wall does not protrude outwardly from the outermost surfaces of the left and right side walls symmetrically with respect to the center of the cross section of the trough body. So that the trough is provided in the side wall .
JP2003327075A 2003-09-19 2003-09-19 trough Expired - Lifetime JP4234548B2 (en)

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JP2003327075A JP4234548B2 (en) 2003-09-19 2003-09-19 trough
PCT/JP2004/013427 WO2005029663A1 (en) 2003-09-19 2004-09-15 Cable trough
KR1020067005551A KR20060087572A (en) 2003-09-19 2004-09-15 Cable trough
CNA2004800270185A CN1853323A (en) 2003-09-19 2004-09-15 Cable trough

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Application Number Priority Date Filing Date Title
JP2003327075A JP4234548B2 (en) 2003-09-19 2003-09-19 trough

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JP4234548B2 true JP4234548B2 (en) 2009-03-04

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CN103022952B (en) * 2012-12-28 2016-07-06 浙江省电力设计院 A kind of concealed cable duct with designation system
CN103887753A (en) * 2014-04-10 2014-06-25 江苏神马电力股份有限公司 Composite material cable trench
CN103887752A (en) * 2014-04-10 2014-06-25 江苏神马电力股份有限公司 Composite cable trench
CN106253188A (en) * 2016-08-22 2016-12-21 河北超能投资管理有限公司 Assembly type cable slot and construction method thereof

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JPS4323273Y1 (en) * 1966-09-12 1968-10-01
JPH0431811U (en) * 1990-07-06 1992-03-16
JPH065333U (en) * 1992-06-23 1994-01-21 日東工業株式会社 Cable trough
JP2003189436A (en) * 2001-12-14 2003-07-04 Furukawa Electric Co Ltd:The Cable trough

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WO2005029663A1 (en) 2005-03-31
KR20060087572A (en) 2006-08-02
CN1853323A (en) 2006-10-25
JP2005094960A (en) 2005-04-07

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