JPH028377Y2 - - Google Patents
Info
- Publication number
- JPH028377Y2 JPH028377Y2 JP20422685U JP20422685U JPH028377Y2 JP H028377 Y2 JPH028377 Y2 JP H028377Y2 JP 20422685 U JP20422685 U JP 20422685U JP 20422685 U JP20422685 U JP 20422685U JP H028377 Y2 JPH028377 Y2 JP H028377Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal tube
- tube
- fire
- connection
- metal
- 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
- 239000002184 metal Substances 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000000919 ceramic Substances 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 210000002105 tongue Anatomy 0.000 claims 2
- 239000004020 conductor Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 210000005182 tip of the tongue Anatomy 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、消防用耐火電線・ケーブルの接続、
特に火災にさらされても燃えず、電気的絶縁状態
を維持することができる耐火電線などの接続部に
関する。[Detailed description of the invention] (Industrial application field)
In particular, the present invention relates to connecting parts such as fire-resistant electric wires that do not burn even when exposed to fire and can maintain an electrically insulated state.
（従来の技術）
都市における高層ビルの建設が急速に進んでい
るが、このような高層ビルで若し火災が発生する
と、そこで働いている人、買物客、居住している
人の避難、誘導をどのようにするかは重要な問題
である。ビルで火災が発生した場合、通常の絶縁
電線はその絶縁体が可燃物であるため、延焼を助
ける役割を果し、又絶縁体が燃焼すると電気的短
絡を生じ、アークが発生するのべますます火災を
拡大する。(Prior art) The construction of high-rise buildings in cities is progressing rapidly, and if a fire breaks out in such a high-rise building, it will be difficult to evacuate and guide the people working there, shoppers, and residents. How to do so is an important issue. If a fire breaks out in a building, the insulation of regular insulated wires is combustible, so they help spread the fire, and when the insulation burns, it creates an electrical short circuit and an arc. Expand the fire.
従つて、火災が発生した場合、基本的には送電
を停止し、上記のような問題が生じないようにす
るが、全面的に送電を停止すると避難、誘導のた
めの照明が消失するため、火災が発生した場合で
も、火災時の初期消火や避難、誘導を目的とした
各種防災設備に送電を続ける非常設備用の配線系
統が設けられている。 Therefore, in the event of a fire, power transmission is basically stopped to prevent problems such as those mentioned above from occurring, but if power transmission is completely stopped, lighting for evacuation and guidance will be extinguished. Even in the event of a fire, there is a wiring system for emergency equipment that continues to transmit power to various disaster prevention equipment for initial fire extinguishing, evacuation, and guidance.
この配線系統には、導体上にマイカガラステー
プ、ガラステープを重ね巻きし、無機繊維編組を
施し、更に難燃性の材料、例えばポリテトラフル
オロエチレン（PTFE）などにより外被を施した
耐火電線が用いられ、その接続は前記電線の構成
と同様にマイカガラステープ、ガラステープなど
で耐火絶縁処理をし、外周部を自己融着テープ、
粘着ビニルテープを重ね巻きしていた。この接続
方法は現場での接続作業に長時間を要し、コスト
軽減の観点から好ましいものでなかつた。 This wiring system consists of fire-resistant electrical wires that are made by wrapping mica glass tape or glass tape over the conductor, applying an inorganic fiber braid, and then covering the conductor with a flame-retardant material such as polytetrafluoroethylene (PTFE). The connection is made with fireproof insulation treatment using mica glass tape, glass tape, etc., and the outer periphery is covered with self-fusing tape,
It was wrapped in layers of adhesive vinyl tape. This connection method requires a long time for connection work on site, and is not preferred from the viewpoint of cost reduction.
そのため、接続作業時間を短縮することを目的
として、片端に螺刻した金属コネクターに導体を
挿入し松葉状に圧縮接合したものを、内管にネジ
溝を形成させた磁器製キヤツプに螺着して接続す
る方法、あるいは特開昭52−81581号に示されて
いるように、磁器製キヤツプの内部に予めシリコ
ン混和物又はシリコンゴムを充填したものを松葉
状に接続した先端部分に被せる方法があるが、こ
れらは何れも高価であり、直線接続ができないな
どの問題があつた。 Therefore, in order to shorten the connection work time, we inserted a conductor into a metal connector with a thread on one end, compressed it into a pine needle shape, and then screwed it into a porcelain cap with a thread groove formed in the inner tube. Alternatively, as shown in JP-A No. 52-81581, the inside of a porcelain cap is filled with a silicone mixture or silicone rubber in advance, and then the tip of the pine needle-like connection is covered. However, all of these were expensive and had problems such as not being able to be connected in a straight line.
（考案が解決しようとする問題点） 本考案では、次の諸点を改善するものである。(The problem that the idea attempts to solve) The present invention improves the following points.
直線接続ができ、コストが低廉であること
接続の耐火性が十分にあること
接続作業時間が短かく、労力を軽減させるこ
と。 A straight line connection is possible and the cost is low.The connection has sufficient fire resistance.The connection work time is short and labor is reduced.
（問題を解決するための手段）
本考案は、上記の解決すべき問題のすべてを満
足させるものとして完成させたものであつて、以
下にその構成を説明する。(Means for Solving the Problems) The present invention has been completed to satisfy all of the above problems to be solved, and its configuration will be explained below.
本考案は、内面に凹型刳部を設けたセラミツク
管、該セラミツク管の凹型刳部に、両端がラツパ
状に開口した金属管の両端から中央に向つて複数
個の三角形状の切込みを入れ、前記セラミツク管
内の凹型刳部と嵌合させる複数個の挿入嵌合片を
形成させ、該挿入嵌合片と挿入嵌合片との間に、
両端に至らないスリツトを複数個設けた金属管を
嵌装し、この金属管内に接続すべき耐火電線の端
末に固着させた接続栓を押入してなることを特徴
とするものである。 The present invention consists of a ceramic tube having a concave cavity on its inner surface, a metal tube with both ends opened in a trundle shape, and a plurality of triangular incisions made from both ends toward the center of the ceramic tube. A plurality of insertion fitting pieces are formed to fit into the concave recess in the ceramic tube, and between the insertion fitting pieces,
It is characterized by fitting a metal tube with a plurality of slits that do not reach both ends, and inserting a connecting plug fixed to the end of the refractory electric wire to be connected into the metal tube.
（作用）
以上の如く構成する本考案にあつては、セラミ
ツク管の凹型刳部に金属管を嵌装するときは、両
端に複数個の三角形状の切込みを入れているた
め、端部外径を縮径することができるので、その
縮径の状態でセラミツク管内に金属管を押込み嵌
装することができる。(Function) In the present invention constructed as described above, when a metal tube is fitted into a concave cavity of a ceramic tube, a plurality of triangular notches are made at both ends, so that the outer diameter of the end Since the diameter of the metal tube can be reduced, the metal tube can be pushed into the ceramic tube in the reduced diameter state.
ここで、セラミツク管の凹型刳部の長さｌは、
金属管の長さＬより僅かに短くして金属管をセラ
ミツク管内に押入れするので、該金属管は弾性に
より僅かに縮径され、接続栓との接合を強固なも
のにすると共に固定される。 Here, the length l of the concave hollow of the ceramic tube is
Since the metal tube is pushed into the ceramic tube at a length slightly shorter than the length L of the metal tube, the diameter of the metal tube is slightly reduced due to its elasticity, and the connection with the connecting plug is strengthened and fixed.
又、切込みの側部には舌片を設けて、該舌片の
先端を金属管の中心方向に折曲げると、接続栓を
金属管内に挿入するときは、スムーズに入り、一
旦嵌入された接続栓は前記舌片の折り曲げ端が抜
止めの作用をするので、金属管から抜けることが
ない。従つて信頼された接続機能を維持する。 In addition, if a tongue piece is provided on the side of the notch and the tip of the tongue piece is bent toward the center of the metal tube, when inserting the connection plug into the metal tube, it will be inserted smoothly and the connection once inserted will be smooth. Since the bent end of the tongue acts as a stopper, the stopper will not come off from the metal tube. Thus maintaining trusted connection functionality.
なお、前記切込みおよびスリツトは、金属管の
撓みを大きく吸収する作用をもち、その数は金属
管の材質、管径などにより適宜決定すればよい。 The cuts and slits have the function of largely absorbing the deflection of the metal tube, and the number thereof may be appropriately determined depending on the material of the metal tube, the tube diameter, etc.
（実施例）
次に、本考案の実施の一例を図面と共に説明す
る。１は内面に凹型刳部２を設けたセラミツク管
で、その材質はアルミナ、ステアタイト、マグネ
シアなど一般に使用されているセラミツク素材を
焼成してなるものである。凹型刳部２の長さｌ
は、後記で説明する金属管３の長さＬより僅かに
短くする。(Example) Next, an example of implementation of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a ceramic tube having a concave cavity 2 on its inner surface, and its material is made by firing a commonly used ceramic material such as alumina, steatite, or magnesia. Length l of concave mound 2
is slightly shorter than the length L of the metal tube 3, which will be explained later.
金属管３は、両端をラツパ状４にし、その両端
から中央に向つてその幅が次第にせまくなる二等
辺三角形の切込み５を複数個入れ、前記セラミツ
ク管内面の凹型刳部２と嵌合させる複数個の挿入
嵌合片６を形成させ、該挿入嵌合片６と挿入嵌合
片６′との間で且つ長さ方向の中央部にスリツト
７を複数個を設けた銅合金からなる金属管であ
る。該金属管の表面は鍍金したものがより好まし
い。 The metal tube 3 has both ends shaped like lapels 4, and has a plurality of isosceles triangular notches 5 whose width gradually narrows from both ends toward the center, which are fitted into the concave recesses 2 on the inner surface of the ceramic tube. A metal tube made of a copper alloy, in which a plurality of insertion fitting pieces 6 are formed, and a plurality of slits 7 are provided between the insertion fitting pieces 6 and the insertion fitting pieces 6' in the central part in the length direction. It is. It is more preferable that the surface of the metal tube be plated.
次に、該金属管３の切込み５の側部には、必要
に応じて軸方向に切込み９を入れて複数個の舌片
８を形成させ、該舌片８の先端を金属管３の中心
方向に折り曲げて接続栓の抜止め１０とする。１
１は、耐火電線１２の露出した端末導体１３を被
嵌し固着した接続栓である。該接続栓１１は金属
管３の内面と接触接続ができる圧縮金属コネクタ
ーであつてもよい。 Next, on the side of the notch 5 of the metal tube 3, a notch 9 is made in the axial direction as necessary to form a plurality of tongue pieces 8, and the tip of the tongue piece 8 is placed at the center of the metal tube 3. It is bent in the direction to form a retainer 10 for the connection plug. 1
Reference numeral 1 denotes a connection plug into which the exposed terminal conductor 13 of the fireproof electric wire 12 is fitted and fixed. The connecting plug 11 may be a compressed metal connector capable of contacting the inner surface of the metal tube 3.
焼成されたセラミツク管１の凹型刳部２に金属
管３を嵌入させるには、金属管３の片端に形成さ
せた挿入嵌合片６を該金属管３の中心方向に押え
込むことによつて、その外径を縮径してセラミツ
ク管１の内管に押入し、該金属管３の後端の押入
れは、セラミツク管１の口径と同径のポンチで押
圧して嵌装する。 In order to fit the metal tube 3 into the concave cavity 2 of the fired ceramic tube 1, an insertion fitting piece 6 formed at one end of the metal tube 3 is pressed toward the center of the metal tube 3. The outer diameter of the metal tube 3 is reduced and the metal tube 3 is inserted into the inner tube of the ceramic tube 1, and the rear end of the metal tube 3 is pressed and fitted with a punch having the same diameter as the diameter of the ceramic tube 1.
このようにすることにより、セラミツク管の凹
型刳部の長さより僅かに長い金属管３は、ラツパ
状４の部分が管軸方向に押付けられ、軸心方向に
撓み接続栓の握持力を強めるようになる。 By doing this, the metal tube 3, which is slightly longer than the length of the concave hollow part of the ceramic tube, has the flap-shaped portion 4 pressed in the tube axis direction, and bends in the axial direction to strengthen the gripping force of the connection plug. It becomes like this.
なお、前記耐火電線の導体が撚線でなく、ソリ
ツドの単線である場合、該単線導体をそのまま接
続栓として金属管３内に嵌装したもよい。 In addition, when the conductor of the refractory electric wire is not a stranded wire but a solid single wire, the single wire conductor may be inserted into the metal pipe 3 as it is as a connection plug.
（効果）
以上説明した如く、本考案では耐火電線の端末
導体に接続栓を固着し、該接続栓をセラミツク管
で覆われた金属管内に挿入することにより、簡単
に接続が完了し、接続後は抜止めが働いて、不用
意に接続がはずれることがなく、短時間に完全な
且つ信頼性のある不撚性の接続をすることができ
る。(Effects) As explained above, in the present invention, by fixing a connecting plug to the terminal conductor of a fireproof electric wire and inserting the connecting plug into a metal pipe covered with a ceramic pipe, the connection can be easily completed, and after the connection Since the retainer works, the connection will not come off inadvertently, and a complete and reliable twist-free connection can be made in a short time.
第１図は本考案に係る耐火電線の接続部の縦断
面図、第２図は本考案で用いる金属管部分の拡大
正面図、第３図は第２図の側面図、第４図は接続
栓挿入時に下る舌片接続栓抜止め部の拡大断面図
である。
符号説明、１：セラミツク管、２：凹型刳部、
３：金属管（スリーブ）、４：ラツパ状、５：切
込み、６，６′：挿入嵌合片、７：スリツト、
８：舌片、９：切込み、１０：接続栓の抜止め、
１１：接続栓、１２：耐火電線、１３：導体。
Figure 1 is a longitudinal cross-sectional view of the connection part of the fireproof electric wire according to the present invention, Figure 2 is an enlarged front view of the metal tube part used in the present invention, Figure 3 is a side view of Figure 2, and Figure 4 is the connection. FIG. 7 is an enlarged cross-sectional view of the tongue connecting stopper part that descends when the stopper is inserted. Code explanation, 1: Ceramic tube, 2: Concave hollow part,
3: Metal tube (sleeve), 4: Laptop shape, 5: Notch, 6, 6': Insertion fitting piece, 7: Slit,
8: Tongue piece, 9: Notch, 10: Connection stopper,
11: Connection plug, 12: Fireproof electric wire, 13: Conductor.
Claims (1)
ラミツク管の凹型刳部に、両端がラツパ状に開
口した金属管の両端から中央部に向つて複数個
の三角形状の切込みを入れ、前記セラミツク管
内の凹型刳部と嵌合させる複数個の挿入嵌合片
を形成させ、該挿入嵌合片と挿入嵌合片との間
に、両端に至らないスリツトを複数個設けた金
属管を嵌装し、この金属管内に接続すべき耐火
電線の端末に固着させた接続栓を押入してなる
ことを特徴とする耐火電線の接続部。 (2) 金属管が三角形状の切込みを入れた側部から
適宜間隔に、軸方向に切込みを入れて複数個の
舌片を形成させ、該舌片の先端を金属管の中心
方向に折り曲げて接続栓の抜止めとしたことを
特徴とする実用新案登録請求の範囲第１項記載
の耐火電線の接続部。[Scope of Claim for Utility Model Registration] (1) A ceramic tube with a concave hollow on its inner surface, and a plurality of metal tubes with both ends opened in the shape of a flap in the concave hollow of the ceramic tube, from both ends toward the center. A plurality of insertion fitting pieces are formed by making triangular cuts to fit into the concave recesses in the ceramic tube, and a slit that does not reach both ends is formed between the insertion fitting pieces. 1. A connection part for a fire-resistant electric wire, characterized in that a metal tube having a plurality of metal tubes is fitted therein, and a connecting plug fixed to the end of the fire-resistant electric wire to be connected is pushed into the metal tube. (2) A plurality of tongues are formed by making cuts in the axial direction at appropriate intervals from the side of the metal tube where the triangular notches are made, and the tips of the tongues are bent toward the center of the metal tube. A connection part for a fire-resistant electric wire according to claim 1, characterized in that the connection plug is prevented from coming off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20422685U JPH028377Y2 (en) | 1985-12-28 | 1985-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20422685U JPH028377Y2 (en) | 1985-12-28 | 1985-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62111173U JPS62111173U (en) | 1987-07-15 |
| JPH028377Y2 true JPH028377Y2 (en) | 1990-02-28 |
Family
ID=31170244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20422685U Expired JPH028377Y2 (en) | 1985-12-28 | 1985-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH028377Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102138928B1 (en) * | 2020-05-22 | 2020-07-29 | 주식회사 코리아오션텍 | Wire connector with fire fighting function |
-
1985
- 1985-12-28 JP JP20422685U patent/JPH028377Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62111173U (en) | 1987-07-15 |
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