JP2019205235A - Power feeding pole - Google Patents

Power feeding pole Download PDF

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JP2019205235A
JP2019205235A JP2018097292A JP2018097292A JP2019205235A JP 2019205235 A JP2019205235 A JP 2019205235A JP 2018097292 A JP2018097292 A JP 2018097292A JP 2018097292 A JP2018097292 A JP 2018097292A JP 2019205235 A JP2019205235 A JP 2019205235A
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main body
pole
power feeding
drain hole
power supply
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JP7046713B2 (en
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山本 茂樹
Shigeki Yamamoto
茂樹 山本
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Mirai Industry Co Ltd
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Mirai Industry Co Ltd
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Abstract

To provide a power feeding pole, the operability of which is improved and in which the setting height of a unit to be provided to the upper portion of the pole is changed so as to be set.SOLUTION: A power feeding pole Q has a hollow shape main body part 1 in which a cable is arranged, and has formed, on the upper end side of the main body part 1, a unit arrangement part 2 where units such as a switch and a plug are arranged. The power feeding pole is erected on the ground or the like with its lower end side buried therein. In a side portion of the main body part 1, drain holes 3 (31, 32) through which internally intruding water is discharged, at axially different positions, to the outside are formed so as to penetrate the side portion.SELECTED DRAWING: Figure 2

Description

本発明は、スイッチやコンセント等の機器を設置するための給電柱に関するものである。   The present invention relates to a power supply pole for installing devices such as switches and outlets.

従来、屋外等で建物等に配設されたコンセントや配電盤からの電気を利用するために、電線管が配管された給電ポールが用いられている。   2. Description of the Related Art Conventionally, in order to use electricity from an outlet or a distribution board installed in a building or the like outdoors, a power feed pole in which a conduit tube is piped is used.

例えば、特許文献1の給電ポールは、ポール本体の下端が土中に埋設されて立設され、ポール本体の内部に配管された電線管に配線された電線を配線器具と接続することで、配線器具を簡単に設置することができる。
また、特許文献2の複合機能ポールは、ポール本体の下部側が地中に埋め込まれて立設され、上部側に給電用コンセントと給水用蛇口が併設されており、ポールから水も電気も簡単にとることができる。さらに、ポール本体には、地面より少し上となる位置に内外に通じる連通孔が形成されて、ポール本体内の水を外部に排出することができるようになっている。
For example, the power supply pole of Patent Document 1 is installed by connecting a wire laid on a conduit pipe installed inside the pole body to a wiring fixture, with the lower end of the pole body buried in the soil and standing upright. Equipment can be easily installed.
In addition, the composite function pole of Patent Document 2 is erected with the lower part of the pole body embedded in the ground, and a power outlet and a water supply faucet are provided on the upper part, so that water and electricity can be easily supplied from the pole. Can take. Furthermore, the pole main body is formed with a communication hole communicating with the inside and outside at a position slightly above the ground so that water in the pole main body can be discharged to the outside.

特開2012−244728号公報JP 2012-244728 A 特開平4−293434号公報JP-A-4-293434

特許文献1の給電ポールは、土中に埋設されていれば、ポール本体内に雨水が侵入してもポール本体内を伝って土にしみこむことで排水が可能である。しかし、コンクリートで埋設する場合には、ポール本体の下端がコンクリートで塞がれないように、下端の挿通孔内や電線管周りを養生して、ポール本体内にコンクリートが入り込むのを防止する必要があり、作業が面倒であった。   If the power feeding pole of Patent Document 1 is buried in the soil, it can be drained by passing through the pole body and soaking into the soil even if rainwater enters the pole body. However, when embedding with concrete, it is necessary to prevent the concrete from entering the pole body by curing the insertion hole at the lower end and around the conduit so that the lower end of the pole body is not blocked by concrete. The work was troublesome.

また、特許文献2の複合機能ポールには、連通孔が形成されているため、コンクリートで埋設したポール本体の下端が塞がれても、ポール内に侵入した水を排出することができる。しかし、連通孔が形成されたポールは、連通孔を周りの地面に合わせる必要があるため、地面からの立設長が決められてしまって、上部側の給電用コンセントや給水用蛇口の高さが変更できないという問題があった。   Moreover, since the communicating hole is formed in the composite function pole of patent document 2, even if the lower end of the pole main body embed | buried with concrete is obstruct | occluded, the water which penetrate | invaded in the pole can be discharged | emitted. However, poles with communication holes need to be aligned with the surrounding ground, so the standing length from the ground is fixed, and the height of the upper power outlet and water supply faucet There was a problem that could not be changed.

本発明は、上記課題を解決するためになされたものであり、その目的は、作業性を向上し、かつ、上部に設けられる機器の設置高さを変更できる給電柱を提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a power supply column that can improve workability and can change the installation height of a device provided in the upper part.

上記問題点を解決するための給電柱は、内部にケーブルが配線される中空筒状の本体部を有し、当該本体部の上端側にスイッチやコンセント等の機器が配置される機器配置部が形成された、下端側が埋設されて立設される給電柱であって、前記本体部の側部には、内部に流入した水を本体部軸方向の異なる位置で外部に排水する水抜き孔が貫通形成されていることを要旨としている。   The power supply column for solving the above problems has a hollow cylindrical main body portion in which a cable is wired, and a device arrangement portion in which devices such as switches and outlets are arranged on the upper end side of the main body portion. The power supply pillar is formed and is erected with the lower end side buried therein, and a drain hole for draining water that has flowed into the outside to the outside at a different position in the axial direction of the main body. The gist is that it is formed through.

また、給電柱について、前記水抜き孔が前記本体部軸方向の異なる位置に複数設けられていてもよい。
また、給電柱について、前記水抜き孔と対応してグランドラインの位置を示唆する表示部が前記本体部の外面に複数設けられていてもよい。
Moreover, about the electric power feeding column, the said drain hole may be provided with two or more in the position from which the said main-body part axial direction differs.
Moreover, about the electric power feeding pillar, the display part which suggests the position of a ground line corresponding to the said drain hole may be provided with two or more on the outer surface of the said main-body part.

また、給電柱について、ケーブルを本体部内に導入すべく、前記本体部の下端側に、本体部軸方向に延びる長溝が形成され、当該長溝の下端から上端の長さが、前記筒軸方向の異なる位置で排水可能とする水抜き孔の最下端から最上端の長さより長く設定されていてもよい。   In addition, a long groove extending in the axial direction of the main body portion is formed on the lower end side of the main body portion in order to introduce the cable into the main body portion, and the length of the upper end from the lower end of the long groove extends in the cylinder axis direction. It may be set longer than the length of the uppermost end from the lowermost end of the drain hole that allows drainage at different positions.

また、給電柱について、機器配置部が前記本体部の側部に形成され、前記水抜き孔は、前記機器配置部の形成された側部と反対側の側部に設けられていてもよい。   Moreover, about an electric power feeding pillar, the apparatus arrangement | positioning part may be formed in the side part of the said main-body part, and the said drain hole may be provided in the side part on the opposite side to the side part in which the said apparatus arrangement | positioning part was formed.

本発明によれば、本体部の埋設量を変更することで、上部に設けられる機器の設置高さを変更できるとともに、埋設量を変更しても内部に流入する水を排出することができる。   According to the present invention, by changing the burying amount of the main body, it is possible to change the installation height of the equipment provided in the upper portion, and it is possible to discharge the water flowing into the inside even if the burying amount is changed.

実施形態の給電柱を示す斜視図。The perspective view which shows the electric power feeding pillar of embodiment. 実施形態の給電柱を示す斜視図。The perspective view which shows the electric power feeding pillar of embodiment. 実施形態の給電柱の本体部であって、(a)はその正面図、(b)はその右側面図、(c)はその背面図。It is a main-body part of the electric power feeding pillar of embodiment, Comprising: (a) is the front view, (b) is the right view, (c) is the back view. 実施形態の給電柱の蓋部材を示す斜視図。The perspective view which shows the cover member of the electric power feeding pillar of embodiment. 実施形態の給電柱の水抜き穴を示す部分拡大図。The elements on larger scale which show the drain hole of the electric power feeding pillar of embodiment. 実施形態の給電柱の使用状態を示す模式図。The schematic diagram which shows the use condition of the electric power feeding pillar of embodiment. 実施形態の給電柱の突出長が小さくなるように変更した使用状態を示す模式図The schematic diagram which shows the use condition changed so that the protrusion length of the electric power feeding pillar of embodiment might become small 実施形態の給電柱の使用状態を示す斜視図であって、(a)は給電柱の突出長を大きくした状態を示し、(b)は給電柱の突出長を小さくした状態を示す。It is a perspective view which shows the use condition of the electric power feeding pillar of embodiment, Comprising: (a) shows the state which enlarged the protrusion length of the electric power feeding pillar, (b) shows the state which made the protrusion length of the electric power feeding pillar small. 機器配置部を本体部に一体に設けた変形例を示す斜視図。The perspective view which shows the modification which provided the apparatus arrangement | positioning part integrally in the main-body part. 水抜き穴を連続する形態とした変形例を示す斜視図。The perspective view which shows the modification which made the form with a continuous water drain hole.

以下、給電柱を具体化した一実施形態を図1〜図8にしたがって説明する。
図1〜図2に示すように、給電柱Qは、内部にケーブルが配線される単一の中空筒状からなり、下端側が埋設されて立設される本体部1と、本体部1の上端側にスイッチやコンセント等の機器が配置される機器配置部2を備えるとともに本体部1の上端を塞ぐ蓋部材6と、からなる。
Hereinafter, an embodiment in which a power supply column is embodied will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the power supply column Q has a single hollow cylindrical shape in which a cable is wired inside, and a main body 1 that is erected with a lower end embedded therein, and an upper end of the main body 1. And a lid member 6 that is provided with a device placement portion 2 on which a device such as a switch or an outlet is placed, and closes the upper end of the main body portion 1.

本体部1は、金属製で四角筒状を成す単一の中空筒であり、埋設される下端側には、本体部軸方向(筒軸方向)に延びる長溝5が貫通形成され、ケーブルやケーブル保護管を内部に導入可能としている。また、上端側は部分的に切欠かれており、本体部の側部に露出コンセントやインターホンが取付けられる機器配置部2が配置されるように蓋部材6が取り付けられている。   The main body portion 1 is a single hollow cylinder made of metal and has a rectangular tube shape, and a long groove 5 extending in the main body axial direction (cylinder axis direction) is formed through the bottom end of the main body 1 so as to be connected to a cable or a cable. A protective tube can be introduced inside. Moreover, the upper end side is partly cut off, and the lid member 6 is attached so that the device arrangement part 2 to which the exposed outlet and the interphone are attached is arranged on the side part of the main body part.

さらに、本体部1において、機器配置部が位置する側部1aと反対側の側部1bには、本体部の内部に流入した水を外部へと排水するための水抜き穴3(31、32)が本体部軸方向の異なる位置に2つ設けられている。さらに、各水抜き穴(31、32)の脇には、埋設する際のグランドラインの位置を示唆する表示部4がそれぞれ設けられている。この表示部4は、粘着シートグランドラインの位置を示唆する「GL」の文字が印刷された粘着シートで構成されている。この粘着シートには、表示部4の上に水抜き穴であることを示す「水抜き穴」という表示が印刷されている。表示部4の「GL」が白抜きされた着色箇所の上端は、水抜き穴3(31、32)の下端縁と同一高さに位置している。   Furthermore, in the main body 1, a drain hole 3 (31, 32) for draining water that has flowed into the main body to the outside is provided on the side 1 b opposite to the side 1 a where the device placement portion is located. ) Are provided at different positions in the main body axial direction. Furthermore, the display part 4 which suggests the position of the ground line at the time of embedding is provided by the side of each drain hole (31, 32), respectively. This display part 4 is comprised with the adhesive sheet on which the character of "GL" which suggests the position of an adhesive sheet ground line was printed. On this pressure-sensitive adhesive sheet, a display “water drain hole” indicating that it is a water drain hole is printed on the display unit 4. The upper end of the colored portion where “GL” in the display unit 4 is outlined is located at the same height as the lower end edge of the drain hole 3 (31, 32).

また、下端側の長溝5と各水抜き穴3のうち下方に位置する水抜き穴31との間には、根かせ7が取り付けられている。根かせ7は、特に土中に埋設した際に、本体部1(給電柱Q)が傾くのを防止している。なお、根かせ7はコンクリート埋設する際には、取り外し埋設しても問題が少ない。   Further, a skein 7 is attached between the long groove 5 on the lower end side and the drain hole 31 positioned below the drain hole 3. The root skein 7 prevents the main body 1 (power feeding column Q) from being inclined, particularly when buried in the soil. In addition, when embedding the concrete 7 in the concrete, there are few problems even if it is removed and embedded.

蓋部材6は、合成樹脂製で形成され、図4に示すように平坦な面と開口とを有する機器配置部2と、本体部1の上端を塞ぐ蓋部61と、本体部内に配線されたケーブルを受け入れる受け口62と、を備えており、本体部1の上端部にねじ固定されて一体化される。   The lid member 6 is made of a synthetic resin, and as shown in FIG. 4, the device placement unit 2 having a flat surface and an opening, a lid unit 61 that closes the upper end of the main unit 1, and a wiring in the main unit. And a receiving port 62 for receiving the cable, and are fixed to the upper end of the main body 1 by screws and integrated.

続いて、本実施形態の給電柱Qの使用状態を説明する。図6に示すように栗石Fが敷かれた穴に給電柱Qが立設され、下端側がコンクリート埋設されて立設され、土中に埋設されたケーブル保護管Pが長溝5を通過して蓋部材6の受け口62にまで配管されている。穴を埋め戻したコンクリートCは、本体部1の下端や長溝5から本体部内に流入し、本体外部のグランドラインGと同一位置となっている。   Then, the use condition of the electric power feeding column Q of this embodiment is demonstrated. As shown in FIG. 6, a power supply pole Q is erected in a hole in which chestnut F is laid, and a lower end side is erected with concrete embedded, and a cable protection pipe P embedded in the soil passes through the long groove 5 and is covered. A pipe is connected to the receiving port 62 of the member 6. The concrete C with the hole backfilled flows into the main body from the lower end of the main body 1 and the long groove 5 and is in the same position as the ground line G outside the main body.

土で埋め戻した場合は、流動性が低いため、本体部1の下端や長溝5から本体部内に入り込む量も少なく、また、本体部内に流入した水は、土にしみこんで排水されるため、本体部内に水が溜まることがないが、図6のようにコンクリート埋設する場合には、水が本体部内に溜まってしまい、溜まった水が蒸発して上端側に設けられた機器内に入り込み機器内で結露したりして錆を発生させたり、動作不良を起こすことがないように、水抜き穴3を設けている。   When backfilled with soil, since the fluidity is low, the amount entering the main body from the lower end of the main body 1 and the long groove 5 is small, and the water that has flowed into the main body is soaked into the soil and drained, Water does not collect in the main body, but when concrete is embedded as shown in FIG. 6, the water accumulates in the main body, and the accumulated water evaporates and enters the equipment provided on the upper end side. Water drain holes 3 are provided so that condensation does not occur in the interior and rust is generated or malfunctions occur.

さらに、水抜き穴3を設けることで、コンクリート埋設する際に、下端側が塞がれてしまっても水抜き穴3から外部に排水可能であることから、下端側が塞がれないように養生する必要もない。つまり、コンクリートCを本体部1の内側に、グランドラインGと同一となるように流入させることで、本体部内の水を水抜き穴3から排水することが可能となっている。なお、この例では根かせ7は付けた状態で埋設しているが、必ずしも根かせは必要ではない。   Furthermore, by providing the drainage hole 3, when burying concrete, even if the lower end side is blocked, it can be drained to the outside from the drainage hole 3, so that the lower end side is cured so as not to be blocked. There is no need. That is, it is possible to drain the water in the main body from the drain hole 3 by allowing the concrete C to flow inside the main body 1 so as to be the same as the ground line G. In this example, the roots 7 are embedded with the roots attached, but the roots are not necessarily required.

また、水抜き穴3は本体部軸方向の異なる位置で排水できるように2箇所(31、32)設けてあり、図7や図8(b)に示すようにグランドラインGを上側の水抜き穴32に対応するように、下端側の埋設量(埋設長)を大きくすることで、グランドラインGからの上方への突出長H2を低くしても、排水可能となっている。そのため、取り付ける機器や周辺環境による所望の高さに機器配置部の高さを変更できる。すなわち、図6のように2箇所の水抜き穴(31,32)のうち、下側の水抜き穴31とグランドラインGを合わせるように埋設した際のランドラインGからの上方への突出長H1よりも、図7に示す突出長H2は、小さくなっている。   Further, the drain holes 3 are provided at two locations (31, 32) so that the water can be drained at different positions in the axial direction of the main body, and the ground line G is drained on the upper side as shown in FIGS. By increasing the burying amount (embedding length) on the lower end side so as to correspond to the hole 32, drainage is possible even if the protruding length H2 upward from the ground line G is reduced. Therefore, the height of the device placement unit can be changed to a desired height depending on the device to be attached and the surrounding environment. That is, as shown in FIG. 6, of the two drain holes (31, 32), the upward protruding length from the land line G when the lower drain hole 31 and the ground line G are embedded so as to be aligned. The protrusion length H2 shown in FIG. 7 is smaller than H1.

さらに、図3(c)に示すように、水抜き穴3(31、32)の排水可能な最下端から最上端までの間隔L1よりも、下端側の長溝5の軸方向の長さL2が大きく形成されている。これにより、土中に埋設されるケーブル保護管Pの埋設深さUは変更することなく、給電柱の立設高さを変更することができる(図6、図7参照)。   Further, as shown in FIG. 3C, the axial length L2 of the long groove 5 on the lower end side is larger than the interval L1 from the lowermost end to which the drainage holes 3 (31, 32) can be drained to the uppermost end. Largely formed. Thereby, the standing height of the power supply column can be changed without changing the burying depth U of the cable protection pipe P buried in the soil (see FIGS. 6 and 7).

また、水抜き孔3(31、32)や表示部4は、本体部1における機器配置部2に配置される機器と反対側に設けられているため、目立つことなく、美観がよい。   Moreover, since the drain hole 3 (31, 32) and the display part 4 are provided on the opposite side to the apparatus arrange | positioned in the apparatus arrangement | positioning part 2 in the main-body part 1, it is not conspicuous and its beauty | look is good.

本発明は上記実施形態に限ったものではなく、また、以下のように変更してもよい。
・例えば、機器配置部2は本体部1と別体の蓋部材6に設けられていたが、図9に示すように本体部1に一体に設けられていてもよい。
・例えば、本体部1は金属製で四角筒状に構成したが、材質を変更してもよいし、四角筒に限らず、円筒形状であってもよい。
The present invention is not limited to the above embodiment, and may be modified as follows.
-For example, although the device arrangement | positioning part 2 was provided in the cover member 6 separate from the main-body part 1, you may be provided integrally in the main-body part 1 as shown in FIG.
-For example, although the main-body part 1 was metal and comprised in the square cylinder shape, a material may be changed and not only a square cylinder but cylindrical shape may be sufficient.

・例えば、ケーブル導入開口を形成している長溝5は異なる高さで排水可能な水抜き穴の最下端から最上端までの間隔L1よりも長く形成されていなくてもよく、長溝ではなく複数の貫通孔によりケーブル導入開口を形成してもよい。 -For example, the long groove 5 forming the cable introduction opening may not be formed longer than the interval L1 from the lowermost end to the uppermost end of the drainage hole that can be drained at different heights. The cable introduction opening may be formed by the through hole.

・例えば、水抜き穴3(31、32)は複数が本体部軸方向に離れて設けられていたが、図10に示すように軸方向に延びる溝状に形成してもよい。この例によれば、水抜き穴3が地表に臨む範囲であれば、任意の高さに機器配置部2を配置させることができる。 For example, although the plurality of drain holes 3 (31, 32) are provided apart in the main body axial direction, they may be formed in a groove shape extending in the axial direction as shown in FIG. According to this example, as long as the drain hole 3 faces the ground surface, the device placement unit 2 can be placed at an arbitrary height.

・例えば、水抜き穴3は、機器配置部2と異なる側部1bに設けられているが、同じ側1aであっても、機器配置部2と反対側ではない側部に設けられてもよく、また、1つの側部のみでなく、複数の側部にそれぞれ、または、跨って設けられてもよい。 For example, the drain hole 3 is provided in the side portion 1b different from the device placement portion 2, but may be provided in the side portion that is not the opposite side of the device placement portion 2 even in the same side 1a. Moreover, it may be provided not only on one side but on each of a plurality of side parts or straddling.

・例えば、表示部4は水抜き穴3の数に応じて複数の粘着シートにより設けられていたが、1枚の粘着シートによって複数のグランドラインを表示してもよいし、粘着シートに限らず刻印や彫刻で表示してもよい。 -For example, although the display part 4 was provided with the some adhesive sheet according to the number of the drain holes 3, it may display a some ground line with one adhesive sheet, and is not restricted to an adhesive sheet It may be displayed by engraving or engraving.

Q:給電柱
1:本体部
3:水抜き穴
4:表示部
5:長溝
7:根かせ
61:蓋部材
Q: Feeding pole 1: Body part 3: Water draining hole 4: Display part 5: Long groove 7: Root shank 61: Lid member

Claims (5)

内部にケーブルが配線される中空筒状の本体部を有し、当該本体部の上端側にスイッチやコンセント等の機器が配置される機器配置部が形成された、下端側が埋設されて立設される給電柱であって、
前記本体部の側部には、内部に流入した水を本体部軸方向の異なる位置で外部に排水する水抜き孔が貫通形成されていることを特徴とする給電柱。
It has a hollow cylindrical body part that is wired with a cable inside, and a device placement part in which equipment such as switches and outlets are placed is formed on the upper end side of the body part. A power supply pole,
The power supply column is characterized in that a drain hole for draining water that has flowed into the body to the outside at different positions in the axial direction of the body portion is formed through the side portion of the body portion.
前記水抜き孔は、前記本体部軸方向の異なる位置に複数設けられていることを特徴とする請求項1に記載の給電柱。   The power supply column according to claim 1, wherein a plurality of the drain holes are provided at different positions in the axial direction of the main body. 前記水抜き孔と対応してグランドラインの位置を示唆する表示部が前記本体部の外面に複数設けられていることを特徴とする請求項2に記載の給電柱。   The power supply column according to claim 2, wherein a plurality of display portions that suggest a position of a ground line corresponding to the drain hole are provided on an outer surface of the main body portion. 前記ケーブルを本体部内に導入すべく、前記本体部の下端側に、本体部軸方向に延びる長溝が形成され、当該長溝の下端から上端の長さが、前記筒軸方向の異なる位置で排水可能とする水抜き孔の最下端から最上端の長さより長く設定されていることを特徴とする請求項1乃至請求項3のいずれかに記載の給電柱。   In order to introduce the cable into the main body, a long groove extending in the axial direction of the main body is formed on the lower end side of the main body, and drainage is possible at a position where the length from the lower end to the upper end of the long groove is different in the cylindrical axis direction. The feed post according to any one of claims 1 to 3, characterized in that the drainage hole is set to be longer than the length from the bottom end to the top end. 前記機器配置部が前記本体部の側部に形成され、前記水抜き孔は、前記機器配置部の形成された側部と反対側の側部に設けられていることを特徴とする請求項1乃至請求項4のいずれかに記載の給電柱。   The said apparatus arrangement | positioning part is formed in the side part of the said main-body part, and the said drain hole is provided in the side part on the opposite side to the side part in which the said apparatus arrangement | positioning part was formed. The feed pole according to any one of claims 4 to 4.
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JP2006353069A (en) * 2005-06-20 2006-12-28 Chugoku Electric Power Co Inc:The Grounding wire protector, and electric pole for installation on grassland
JP2014163058A (en) * 2013-02-21 2014-09-08 Mizsei Mfg Co Ltd Tap post
JP2017082425A (en) * 2015-10-23 2017-05-18 矢崎エナジーシステム株式会社 Method for constructing column for charging stand and structure for supporting column for charging stand
JP2018033195A (en) * 2016-08-22 2018-03-01 古河電気工業株式会社 Trough support member, laying method for trough support member and trough bridge

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JP2000125454A (en) * 1998-10-09 2000-04-28 Mirai Ind Co Ltd Tilt preventive member of wiring pole
JP2006353069A (en) * 2005-06-20 2006-12-28 Chugoku Electric Power Co Inc:The Grounding wire protector, and electric pole for installation on grassland
JP2014163058A (en) * 2013-02-21 2014-09-08 Mizsei Mfg Co Ltd Tap post
JP2017082425A (en) * 2015-10-23 2017-05-18 矢崎エナジーシステム株式会社 Method for constructing column for charging stand and structure for supporting column for charging stand
JP2018033195A (en) * 2016-08-22 2018-03-01 古河電気工業株式会社 Trough support member, laying method for trough support member and trough bridge

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210113826A (en) * 2020-03-09 2021-09-17 김호식 The cable duck with builted outlet box and the method using the same
KR102364781B1 (en) 2020-03-09 2022-02-17 김호식 The cable duck with builted outlet box and the method using the same

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