JP3599464B2 - Coaxial cable with suspension wire - Google Patents

Description

【００１５】
そして同軸ケーブル４の分岐位置、中継位置等で必要に応じて、図２に示すように、この吊線付き同軸ケーブル７の同軸ケーブル４側と吊線５側とが、所定長、シース層６の部分で分離されている。
この部分の同軸ケーブル４には、分岐器８が取り付けられていて、吊線５は未切断状態のまま分岐器８の側部に添わされている。
そしてこの分岐器８全体、吊線５の一部、同軸ケーブル４、４´の一部が、分岐部９により保護されている。この分岐部９は、例えばモールドで樹脂が充填されてなるモールド部である。
【００１６】
また図３に示すように、吊線付き同軸ケーブル７の所定位置において、同軸ケーブル４の一部が分岐部９の側部（図３中、Ａの部分）から外に出た状態で固定され、この部分で同軸ケーブル４に増幅器１１が取り付けられている。
ただし、ここでも吊線５は未切断状態のまま分岐部９内に貫通固定されている。
【００１７】
本実施の形態の一例では、表１に示すオーダーの吊線付き同軸ケーブル７を使用した例を示したが、本発明に使用される吊線付き同軸ケーブル７はこれに限定されるものではなく、通常吊線５として使用されるものであれば、どのようなものであってもよく、例えばシース層６を有する同軸ケーブル４に吊線を縦添えし、両者を、ワイヤ等を横巻きして一体化したものでもよく、吊線５の本数は複数本であってもよい。
【００１８】
本実施の形態の一例では、図２、図３に示したように、同軸ケーブル４に分岐器８や増幅器１１を取り付けた例を示したが、本発明の吊線付き同軸ケーブル７はこれに限定されず、合波器等、他のモジュールを取り付けてなるものであってもよい。また必ずしも分岐部９はモールドで樹脂が充填されている必要はなく、箱型のものであってもよい。
【００１９】
また、本実施の形態の一例では、吊線５側のシース層６を剥がさないまま、吊線５を分岐部９内に収納した例を示したが、吊線５側のシース層６を剥いだ状態で、これを行ってもよいことは言うまでもない。
【００２０】
さらに本発明の吊線付き同軸ケーブル７では、最低１箇所の分岐部９内に、吊線５が未切断状態で貫通固定されていればよく、例えばビルの下の方の階に配線される部分等で分岐部９が従来のままの構造となっていてもよい。
【００２１】
【発明の効果】
本発明の吊線付き同軸ケーブルをビル内に配線した場合、当該吊線付き同軸ケーブルの荷重全体は、未切断状態の吊線全体にかかるので、従来のように分岐器と吊線との連結が外れて同軸ケーブルに余分な荷重がかかってしまいケーブル寿命を縮めてしまう、という問題が生じない。
【図面の簡単な説明】
【図１】本発明の実施の形態の一例となる吊線付き同軸ケーブルの横断面図。
【図２】本発明の実施の形態の一例となる吊線付き同軸ケーブルを一部断面状態で示す説明図。
【図３】本発明の実施の形態の一例となる吊線付き同軸ケーブルを一部断面状態で示す説明図。
【図４】従来の吊線付き同軸ケーブルの一例を示す横断面図。
【図５】従来の吊線付き同軸ケーブルを一部断面状態で示す説明図。
【図６】従来の吊線付き同軸ケーブルを一部断面状態で示す説明図。
【符号の説明】
１ 内部導体
２ 絶縁体
３ 外部導体
４、４´ 同軸ケーブル
５ 吊線
６、６´ シース層
７ 吊線付き同軸ケーブル
８ 分岐器
９ 分岐部
１０、１０´ 吊線掛け部
１１ 増幅器[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a coaxial cable with a suspension wire used for, for example, wiring in a high-rise building.
[0002]
[Prior art]
4 to 6 show an example of a conventional coaxial cable with a suspension wire.
As shown in FIG. 4, the coaxial cable 7 with a suspension line includes a coaxial cable 4 in which an insulator 2 and an external conductor 3 are formed outside an inner conductor 1 and a suspension line 5 attached to the coaxial cable 4. It is formed by covering all with a sheath layer 6.
[0003]
As shown in FIG. 5, the coaxial cable 4 side and the side of the suspension line 5 of the coaxial cable 7 with the suspension line have a predetermined length and a portion of the sheath layer 6 as required at the branch position, the relay position, and the like of the coaxial cable 4. Separated by
A branch 8 and an amplifier 11 (not shown here; see FIG. 3) and the like are attached to the coaxial cable 4 in this portion. The suspension line 5 is stripped of the sheath layer 6 above and below the branch 8 to a predetermined length. It is cut and connected to the upper side and the lower side of the branching device 8.
[0004]
Then, in order to protect the branch unit 8, the branch unit 8, a part of the coaxial cable 4, and a part of the suspension line 5 are housed in the branch part 9.
However, reference numeral 4 'denotes another coaxial cable with a sheath layer 6'.
[0005]
Here, in order to connect the branching device 8 and the hanging wire 5, for example, as shown in FIG. 5, the hanging wire hanging portions 10 and 10 ′ having through holes are provided in upper and lower portions of the branching device 8, and FIG. As shown in detail, the end of the hanging wire 5 is passed through this through hole, bent, and further wound around the main line of the hanging wire 5 so as not to come off from the hanging wire hooking portions 10, 10 '.
[0006]
Now, when wiring the coaxial cable 7 with a suspension line in a building, the upper end of the suspension line 5 is connected to a suspension line fixing device provided at a predetermined location on the upper floor of the building at the upper floor of the building, and the cable with the suspension line is connected. Hang the coaxial cable 7.
Here, the entire branch 9 may have a weight of about 1 kg. Therefore, the weight of the entire coaxial cable 7 with a suspension wire is about 20 kg, depending on the thickness and length of the cable, the number of the branch portions 9 and the like, for example, when wiring is performed in a building of about 10 stories. Sometimes.
[0007]
[Problems to be solved by the invention]
In the coaxial cable 7 with a suspension line having such a structure, the weight of the suspension line hooking part 10 ′ at the lower end side of the branching device 8 on each floor and the suspension line 5 connected thereto is lower than the branch part 9. Because of the overall weight, the higher the height of the building in which the hanging coaxial cable 7 is laid, the greater the load applied to the hanging wire hooking part 10 ′ of the branching device 8 on the upper floor.
[0008]
For this reason, on the upper floor, the connection between the suspension line hooking part 10 'of the branching device 8 and the suspension line 5 is disconnected, and an extra load is applied to the coaxial cable 4, which may shorten the cable life.
[0009]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a coaxial cable with a suspension wire that prevents an extra load from being applied to the coaxial cable.
[0010]
[Means for Solving the Problems]
The coaxial cable with a stranded cable of the present invention includes a coaxial cable, a stranded cable attached to the coaxial cable and supporting the coaxial cable, and a branch portion in which a part of the coaxial cable and a part of the stranded cable are stored. A coaxial cable with a suspension wire having
The branch portion is suspended from the coaxial cable with a suspension line,
The suspension line may be penetrated and fixed in the branch portion in an uncut state.
[0011]
In the coaxial cable with a stranded cable of the present invention, the stranded cable is not cut at a predetermined length on each floor and connected to the upper and lower portions of the branching device as in the related art, but is fixed through the branch portion in an uncut state.
[0012]
Therefore, when this coaxial cable with a stranded cable is wired in a building, the load of the whole coaxial cable with a stranded cable is applied to the entire uncut stranded cable.
For this reason, there is no problem that the connection between the branching device and the suspension line is disconnected as in the related art, and an extra load is applied to the coaxial cable to shorten the cable life.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIGS. 1 to 3 show a coaxial cable 7 with a suspension wire according to an embodiment of the present invention.
As shown in FIG. 1, the coaxial cable 7 with a suspension cable includes a coaxial cable 4 in which an insulator 2 and an external conductor 3 are formed outside an inner conductor 1 and a suspension cable 5 attached to the coaxial cable 4. It is formed by covering all with a sheath layer 6.
The following table shows an example of each material and outer diameter of the coaxial cable 7 with a suspension wire.
[0014]
[Table 1]

[0015]
As shown in FIG. 2, the coaxial cable 4 side of the coaxial cable 7 and the side of the suspension line 5 of the coaxial cable 7 have a predetermined length, and Separated by
The branch 8 is attached to the coaxial cable 4 in this portion, and the suspension line 5 is attached to the side of the branch 8 in an uncut state.
The branch unit 8, a part of the suspension line 5, and a part of the coaxial cables 4 and 4 ′ are protected by the branch part 9. The branch portion 9 is, for example, a mold portion formed by filling a resin with a mold.
[0016]
As shown in FIG. 3, at a predetermined position of the coaxial cable 7 with a suspension wire, a part of the coaxial cable 4 is fixed in a state of protruding from a side portion (A portion in FIG. 3) of the branch portion 9, At this portion, the amplifier 11 is attached to the coaxial cable 4.
However, also in this case, the suspension line 5 is penetrated and fixed in the branch portion 9 in an uncut state.
[0017]
In one example of the present embodiment, an example in which the coaxial cable 7 with a stranded wire of the order shown in Table 1 is used is shown, but the coaxial cable 7 with a stranded wire used in the present invention is not limited to this. Any material may be used as long as it is used as the hanging wire 5. For example, a hanging wire is vertically attached to the coaxial cable 4 having the sheath layer 6, and both are integrated by horizontally winding a wire or the like. And the number of the suspension lines 5 may be plural.
[0018]
In one example of the present embodiment, as shown in FIGS. 2 and 3, an example is shown in which the branching device 8 and the amplifier 11 are attached to the coaxial cable 4, but the coaxial cable 7 with a suspension wire of the present invention is not limited to this. Instead, another module such as a multiplexer may be attached. Further, the branch portion 9 does not necessarily need to be filled with resin by a mold, and may be a box type.
[0019]
Further, in an example of the present embodiment, an example is shown in which the hanging wire 5 is stored in the branch portion 9 without peeling the sheath layer 6 on the hanging wire 5 side, but in a state where the sheath layer 6 on the hanging wire 5 side is peeled off. Needless to say, this may be done.
[0020]
Furthermore, in the coaxial cable 7 with a suspension wire according to the present invention, the suspension wire 5 may be fixed through at least one branch portion 9 in an uncut state, for example, a portion wired on a lower floor of a building or the like. In this case, the branching portion 9 may have a conventional structure.
[0021]
【The invention's effect】
When the coaxial cable with a stranded cable of the present invention is wired in a building, the entire load of the coaxial cable with a stranded cable is applied to the entire uncut stranded cable. There is no problem that an extra load is applied to the cable and the cable life is shortened.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a coaxial cable with a suspension line as an example of an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a coaxial cable with a suspension line as an example of an embodiment of the present invention in a partially cross-sectional state.
FIG. 3 is an explanatory view showing a coaxial cable with a suspension line as an example of an embodiment of the present invention in a partially sectional state.
FIG. 4 is a cross-sectional view showing an example of a conventional coaxial cable with a suspension wire.
FIG. 5 is an explanatory view showing a conventional coaxial cable with a suspension wire in a partially sectional state.
FIG. 6 is an explanatory view showing a conventional coaxial cable with a suspension line in a partially sectional state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inner conductor 2 Insulator 3 Outer conductor 4, 4 'Coaxial cable 5 Suspension line 6, 6' Sheath layer 7 Coaxial cable with suspension line 8 Branching device 9 Branch unit 10, 10 'Suspension line hanging unit 11 Amplifier

Claims (1)

Coaxial cable, a coaxial cable with a suspension line having a branch attached to the coaxial cable and supporting the coaxial cable, and a branch portion in which a part of the coaxial cable and a part of the suspension line are housed,
The branch portion is suspended from the coaxial cable with the suspension line,
The coaxial cable with a suspension cable, wherein the suspension cable is penetrated and fixed in the branch portion in an uncut state.

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