JPS6222327B2 - - Google Patents
Info
- Publication number
- JPS6222327B2 JPS6222327B2 JP56084734A JP8473481A JPS6222327B2 JP S6222327 B2 JPS6222327 B2 JP S6222327B2 JP 56084734 A JP56084734 A JP 56084734A JP 8473481 A JP8473481 A JP 8473481A JP S6222327 B2 JPS6222327 B2 JP S6222327B2
- Authority
- JP
- Japan
- Prior art keywords
- electric wire
- wind noise
- linear bodies
- lower surfaces
- low wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Non-Insulated Conductors (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Description
【発明の詳細な説明】
本発明は、低風騒音電線の改良に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in low wind noise electric wires.
架設された電線に風が吹き当ると、その電線後
方にカルマン渦が生じ、これにより風騒音が発生
する。 When wind blows against an installed electric wire, a Karman vortex is generated behind the wire, which generates wind noise.
従来、この種風騒音を抑止した電線としては、
第１図に示すように例えば２本のアーマーロツド
１を電線２にその相互の巻付ピツチを1/2づつ異
らせて開放螺旋巻付けしてなり、該電線の長手方
向からの投影形における電線の上、下面にアーマ
ーロツドによる突部を形成して、電線後方に生じ
るカルマン渦を乱し、これにより風騒音を抑止し
たものが知られている。 Previously, electric wires that suppressed this type of wind noise were:
As shown in Fig. 1, for example, two armor rods 1 are wound around an electric wire 2 in an open helical manner, with the winding pitch being different from each other by 1/2, and when viewed from the longitudinal direction of the electric wire, It is known that protrusions formed by armor rods are formed on the upper and lower surfaces of the electric wire to disturb the Karman vortices that occur behind the electric wire, thereby suppressing wind noise.
この低風騒音電線によると、アーマーロツドに
よる突部は、電線の上、下面で同じ位置に形成さ
れる。 According to this low wind noise electric wire, the protrusion by the armor rod is formed at the same position on the upper and lower surfaces of the electric wire.
そこで発明者等は、種々実験を重ね検討を重ね
た結果、突部を電線の上、下両面の同一位置に形
成した場合と、片側の突部を除去した場合とで
は、特にアーマーロツド外径が２mm以上の場合に
は、その風騒音抑止効果は殆んど差異がないこと
を発見した。 As a result of various experiments and studies, the inventors found that the outer diameter of the armor rod is particularly different when the protrusions are formed at the same position on both the upper and lower sides of the wire, and when the protrusions are removed on one side. It was discovered that there is almost no difference in the wind noise suppression effect when the thickness is 2 mm or more.
しかるに、上記従来の低風騒音電線において
は、電線の上、下面に形成される突部間には、何
等の形状変化がなく、それだけ風騒音抑止効果が
減少してしまう欠点があつた。 However, the conventional low wind noise electric wire described above has the disadvantage that there is no shape change between the protrusions formed on the upper and lower surfaces of the electric wire, which reduces the wind noise suppression effect accordingly.
本発明は、このような欠点を改良したものであ
る。 The present invention improves these drawbacks.
これを第２図に示した一実施例に基づき説明す
る。 This will be explained based on an embodiment shown in FIG.
図において１は複数本の線状体、例えば２本の
アルミニウム製アーマーロツド、２は電源、例え
ばACSR（410mm2）を示す。 In the figure, 1 indicates a plurality of linear bodies, for example, two aluminum armor rods, and 2 indicates a power source, for example, ACSR (410 mm 2 ).
２本のアーマーロツド１は、予め同一ピツチの
開放螺旋状にプレフオームしてあり、またその外
径は２mm以上としてある。 The two armor rods 1 are preformed in an open helical shape with the same pitch, and the outer diameter thereof is set to be 2 mm or more.
このアーマーロツド１は、図示する如くACSS
２外周に、相互に間隔を有した並列状で螺旋巻付
けしてある。 This Armor Rod 1 is ACSS as shown in the figure.
They are spirally wound around the two outer peripheries in a parallel manner with a space between them.
また上記アーマーロツド１の巻付けは、その巻
付けピツチを相互に1/4づつ異るように巻付けて
ある。 Further, the armor rod 1 is wound so that the winding pitch is different from each other by 1/4.
尚、本実施例では線状体１としては、予めプレ
フオームした２本のアルミニウム製アーマーロツ
ドを使用した例を示したが、これに限らず他の金
属がプラスチツクスを使用してもよい。 In this embodiment, two preformed aluminum armor rods are used as the linear body 1, but the present invention is not limited to this, and other metals or plastics may be used.
また線状体１の本数は、２本に限らず３本以上
としてもよく、更にその巻付けも本実施々に示し
たものに限らず、要は電線の長手方向に直交する
方向の投影形における電線の上、下面に形成され
る線状体による突部が、上、下面間で相互に異る
位置になるように構成してあればよい。 Further, the number of wire bodies 1 is not limited to two, but may be three or more, and the winding thereof is not limited to that shown in this embodiment. It is sufficient that the protrusions formed by the linear bodies formed on the upper and lower surfaces of the electric wire are located at different positions on the upper and lower surfaces.
しかして、本発明低風騒音電線によれば、電線
外周に複数本の線状体を相互に間隔を有した並列
状で螺旋巻付けしてなり、更に前記線状体の巻付
けを、電線の長手方向に直交する方向の投影形に
おける電源の上、下面に形成される線状体による
突部が、上、下面間で相互に異る位置になるよう
に構成したので、従来品と同一の材料費、工数
で、その長手方向に直交する方向からの投影形に
おいて、その外形変化をする場所の個数が格段と
増大させ得る。従つて電線後方に生じるカルマン
渦の乱れは従来品に比し格段と多くなり、それだ
け風騒音を抑止することができる。また本発明低
風騒音電線によれば電線の防振効果が難着雪効果
をも奏し得る。 According to the low wind noise electric wire of the present invention, a plurality of linear bodies are spirally wound around the outer periphery of the electric wire in parallel with mutual intervals, and the winding of the linear bodies is further The protrusions formed by the linear bodies formed on the top and bottom surfaces of the power supply in the projection form perpendicular to the longitudinal direction of the power supply are configured so that they are located at different positions on the top and bottom surfaces, making them the same as conventional products. With the cost of materials and man-hours, the number of locations where the external shape changes when viewed from a direction perpendicular to the longitudinal direction can be significantly increased. Therefore, the disturbance of the Karman vortex generated behind the electric wire is much more than that of conventional products, and wind noise can be suppressed to that extent. Further, according to the low wind noise electric wire of the present invention, the vibration-proofing effect of the electric wire can also have the effect of preventing snow accumulation.
第１図は従来例を示す正面図、第２図は本発明
低風騒音電線の一実施例を示す正面図である。
１……線状体、２……電線。
FIG. 1 is a front view showing a conventional example, and FIG. 2 is a front view showing an embodiment of the low wind noise electric wire of the present invention. 1... Linear body, 2... Electric wire.
Claims (1)
した並列状で螺旋巻付けしてなり、前記線状体の
巻付けを、電線の長手方向に直交する方向の投影
形における電線の上、下面に形成される線状体に
よる突部が、上、下面間で相互に異る位置になる
ように構成したことを特徴とする低風騒音電線。1 A plurality of linear bodies are spirally wound around the outer periphery of an electric wire in a parallel manner with intervals between them, and the winding of the linear bodies is performed in a projection form of the electric wire in a direction perpendicular to the longitudinal direction of the electric wire. A low wind noise electric wire characterized in that protrusions formed by linear bodies formed on the upper and lower surfaces are arranged at different positions between the upper and lower surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084734A JPS57199412A (en) | 1981-06-02 | 1981-06-02 | Low wind noise wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084734A JPS57199412A (en) | 1981-06-02 | 1981-06-02 | Low wind noise wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57199412A JPS57199412A (en) | 1982-12-07 |
| JPS6222327B2 true JPS6222327B2 (en) | 1987-05-18 |
Family
ID=13838919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56084734A Granted JPS57199412A (en) | 1981-06-02 | 1981-06-02 | Low wind noise wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57199412A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5988413A (en) * | 1982-11-12 | 1984-05-22 | Seiwa Kasei:Kk | Hair rinse composition |
-
1981
- 1981-06-02 JP JP56084734A patent/JPS57199412A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57199412A (en) | 1982-12-07 |
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