JPS5931508A - Power cord - Google Patents
Power cordInfo
- Publication number
- JPS5931508A JPS5931508A JP57141447A JP14144782A JPS5931508A JP S5931508 A JPS5931508 A JP S5931508A JP 57141447 A JP57141447 A JP 57141447A JP 14144782 A JP14144782 A JP 14144782A JP S5931508 A JPS5931508 A JP S5931508A
- Authority
- JP
- Japan
- Prior art keywords
- core wire
- power cord
- cavity
- sheet
- cord
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明はヘアードライヤ等に使用される電源コードに
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power cord used for hair dryers and the like.
近年のへアードライヤは高ワツト化が進みそれに伴い電
源コードも１０アンペア以上供給できるものが要求され
るようになった。一方従来のビニルコードは、第６図お
よび第７図のように屈曲による断線に対して芯線Ａと塩
化ビニルＢどの柔軟性をもだせるとともに芯線Ａを保護
するため、芯線Ａの回りを紙シートＣで巻いて塩化ビニ
ルＢで同時成形した３層の形を取っているが、コードの
屈曲等によって断線（Ｐ）が起こると、コードの曲げが
行なわれるたびにコードの内部で火花Ｑが発生し、七の
火花によって被覆ビニルＢにだんだん穴Ｑ′があけられ
外部に火花を発生させるという欠点があった。In recent years, hair dryers have become higher in wattage, and as a result, power cords that can supply 10 amperes or more are now required. On the other hand, in conventional vinyl cords, as shown in Figures 6 and 7, the core wire A and the vinyl chloride B have flexibility against breakage due to bending, and in order to protect the core wire A, a paper sheet is placed around the core wire A. It has the form of three layers wrapped with C and simultaneously molded with vinyl chloride B, but if a break (P) occurs due to bending of the cord, sparks Q are generated inside the cord each time the cord is bent. However, there was a drawback that holes Q' were gradually made in the covering vinyl B by the sparks of the seventh step, and sparks were generated outside.
したがって、この発明の目的は、屈曲やねじれによって
起こる断線スパークが外部に飛出すのを防ぐことができ
る電源コードを提供することである。Therefore, an object of the present invention is to provide a power cord that can prevent disconnection sparks caused by bending or twisting from flying out.
この発明の第１の実施例を第１図ないし第４図に示す。A first embodiment of this invention is shown in FIGS. 1 to 4.
すなわち、この電源コードは、芯線１゜１′とビニル製
絶縁被覆２との間にシート３を介層している。このシー
ト３はテトロンフィルムの一表面に多数の条溝４を形成
してあり、この条溝４を芯線側に向けている。これによ
り、第１図のように芯線ｌ、１′の周囲に多数の空洞Ｈ
が形成される。このコードの作り方はシート３を芯線１
の外周に巻いて塩化ビニルを同時成形する。That is, in this power cord, a sheet 3 is interposed between a core wire 1.times.1' and a vinyl insulation covering 2. This sheet 3 has a large number of grooves 4 formed on one surface of the Tetron film, and these grooves 4 are directed toward the core line side. This creates a large number of cavities H around the core wires l and 1' as shown in Figure 1.
is formed. How to make this cord is to use sheet 3 as core wire 1.
Wrap it around the outside and mold the vinyl chloride at the same time.
コードの屈曲によって断線（Ｐ′）が起きた場合、折曲
げに伴って起こる電気スパークには空洞Ｈの部分で発生
する。また電気スパークには空気に触れると弱まる性質
があるため、空洞Ｈで減衰し、コード外部に火花を発生
させることを防ぐことができる。When a wire breakage (P') occurs due to bending of the cord, an electric spark generated due to the bending occurs in the cavity H portion. Furthermore, since electric sparks have the property of weakening when exposed to air, they are attenuated in the cavity H, and it is possible to prevent sparks from being generated outside the cord.
この発明の第２の実施例を第５図に示す。すなわち、こ
の電源コードは、芯線５．５′の中心に円筒バイブロを
通し、このバイブロにより空洞Ｈ′を形成している。７
は紙シート、８は同時成形されたビニル被覆である。こ
の場合、断線状態で発生したスパークはバイブロに孔を
あけて空洞Ｈ′内で火花を出す。このため外部へ飛出す
るのを抑えることができる。なお、円筒バイブロに切り
溝をつけておくと、スパークが空洞Ｈ′内に発生しやす
い。A second embodiment of the invention is shown in FIG. That is, in this power cord, a cylindrical vibro is passed through the center of the core wire 5.5', and a cavity H' is formed by the vibro. 7
is a paper sheet and 8 is a co-molded vinyl coating. In this case, the spark generated in the disconnected state pierces the vibro and emits sparks within the cavity H'. Therefore, it is possible to prevent the particles from flying out to the outside. Note that if the cylindrical vibro is provided with a groove, sparks are likely to be generated within the cavity H'.
以上のように、この発明の電源コードは、芯線の周囲ま
だは内部に空洞を形成したため、屈曲等による断線スパ
ークは空洞で消弧されるので、外部へ飛び出すことがな
く安全であるという効果がある。As described above, the power cord of the present invention has a cavity formed around the core wire and inside the core wire, so any spark caused by breakage due to bending etc. is extinguished in the cavity, so it is safe and does not fly out to the outside. be.
第１図はこの発明の第１の実施例の断面図、第２図はシ
ートの部分斜視図、第３図は第１図の部分拡大図、第４
図は第１図のＩＶ −ＩＶ線断面図、第５図は第２の実
施例の断面図、第６図は従来例の斜視図、第７図はその
断面図である。
１．１’、５．５’・・・芯線、２・・・ビニル被覆、
３・・・シート、４・・・溝、Ｈ、Ｈ’・・・空洞、６
・・・円筒パイプ第１図
第３図
第２図
第４図
第５図
第６図 第７図FIG. 1 is a sectional view of the first embodiment of the invention, FIG. 2 is a partial perspective view of the seat, FIG. 3 is a partially enlarged view of FIG. 1, and FIG.
The drawings are a sectional view taken along the line IV--IV in FIG. 1, FIG. 5 is a sectional view of the second embodiment, FIG. 6 is a perspective view of the conventional example, and FIG. 7 is a sectional view thereof. 1.1', 5.5'...core wire, 2...vinyl coating,
3... Sheet, 4... Groove, H, H'... Hollow, 6
...Cylindrical pipe Figure 1 Figure 3 Figure 2 Figure 4 Figure 5 Figure 6 Figure 7
Claims (3)
花用空洞を形成したことを特徴とする電源コード。(1) A power cord characterized in that a spark cavity is formed around or inside a core wire covered with an insulating coating.
かれ、このシートは前記芯線側の表面に多数の条溝が形
成され、ＩＴＪ記空洞はその溝により形成されている特
許請求の範囲第（１）項記載の電源コード。(2) A sheet is wound between the insulating coating and the core wire, the sheet has a large number of grooves formed on the surface on the core wire side, and the ITJ cavity is formed by the grooves. Power cord described in paragraph (1).
空洞はそのパイプにより形成されている特許請求の範囲
第（１）項記載の電源コード。(3) The power cord according to claim 1, wherein a cylindrical pipe is passed through the center of the core wire, and the cavity is formed by the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57141447A JPS5931508A (en) | 1982-08-13 | 1982-08-13 | Power cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57141447A JPS5931508A (en) | 1982-08-13 | 1982-08-13 | Power cord |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5931508A true JPS5931508A (en) | 1984-02-20 |
| JPS6344248B2 JPS6344248B2 (en) | 1988-09-05 |
Family
ID=15292133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57141447A Granted JPS5931508A (en) | 1982-08-13 | 1982-08-13 | Power cord |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012243550A (en) * | 2011-05-19 | 2012-12-10 | Yazaki Corp | High voltage electric wire and manufacturing method of high voltage electric wire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598118U (en) * | 1978-12-26 | 1980-07-08 |
-
1982
- 1982-08-13 JP JP57141447A patent/JPS5931508A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598118U (en) * | 1978-12-26 | 1980-07-08 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012243550A (en) * | 2011-05-19 | 2012-12-10 | Yazaki Corp | High voltage electric wire and manufacturing method of high voltage electric wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6344248B2 (en) | 1988-09-05 |
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