JP2000190390A - Coating method for normal temperature shrinkable coating material - Google Patents
Coating method for normal temperature shrinkable coating materialInfo
- Publication number
- JP2000190390A JP2000190390A JP37055498A JP37055498A JP2000190390A JP 2000190390 A JP2000190390 A JP 2000190390A JP 37055498 A JP37055498 A JP 37055498A JP 37055498 A JP37055498 A JP 37055498A JP 2000190390 A JP2000190390 A JP 2000190390A
- Authority
- JP
- Japan
- Prior art keywords
- cold
- shrinkable
- coating material
- coating
- expanded
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/182—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation
- H02G15/1826—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube
- H02G15/1833—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube formed of helically wound strip with adjacent windings, which are removable by applying a pulling force to a strip end
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、拡径支持用心材を
用いて絶縁電線やケーブル端末、接続部等の線材上に常
温収縮型被覆材を被覆する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for coating a room-temperature shrinkable coating material on a wire such as an insulated wire, a cable terminal, or a connecting portion by using a core material for supporting a diameter.
【０００２】[0002]
【従来の技術】従来、絶縁電線やケーブル端末等の線材
にチューブ状の常温収縮型被覆材を被覆処理するには、
先ず、この常温収縮型被覆材を機械力によって強制的に
拡径した後、その内部に拡径状態を保持するための筒状
をした心材、すなわち、拡径支持用心材を挿入して、こ
の拡径支持用心材の外側に常温収縮型被覆材を被覆する
ように保持しておく。次に、この拡径支持用心材内に上
記線材を挿入した後、その拡径支持用心材のみを引き抜
き、常温収縮型被覆材を元の状態に収縮させることでそ
の線材の周囲に常温収縮型被覆材を密着するように被覆
させるようになっている。2. Description of the Related Art Conventionally, in order to coat a wire material such as an insulated wire or a cable end with a tubular cold-shrinkable coating material,
First, after the room-temperature shrinkable coating material is forcibly expanded by mechanical force, a cylindrical core material for maintaining the expanded state, that is, a core material for expanded diameter support is inserted into the cold-shrinkable coating material. A cold-shrinkable coating material is held outside the expanded diameter supporting core material so as to cover it. Next, after inserting the above-mentioned wire into the expanded core material, only the expanded core material is pulled out, and the room-temperature shrinkable covering material is contracted to its original state, so that the cold-shrinkable core material is surrounded around the wire material. The coating material is coated so as to be in close contact.
【０００３】ところで、このように常温収縮型被覆材か
ら拡径支持用心材を引き抜くに際しては、常温収縮型被
覆材がそれ自身の収縮力により拡径支持用心材に密着し
ている状態であることから、その間には非常に大きな摩
擦力が生じ、スムーズに引き抜くことができないといっ
た問題がある。[0003] By the way, when the core material for expanding the diameter is pulled out from the cold-shrinkable coating material, the cold-shrinkable coating material is in close contact with the core material for expanding the diameter due to its own contraction force. Therefore, there is a problem that a very large frictional force is generated in the meantime and it is not possible to smoothly pull out.
【０００４】そのため、従来では、例えば、図５に示す
ように、拡径支持用心材ａの外側にその長さ方向に延び
るリブｂを複数形成し、常温収縮型被覆材ｃの内周面と
の接触面積を減らしたり、グリース等の潤滑剤を塗布し
ておくことで、常温収縮型被覆材ｃとの摩擦抵抗を減少
させておき、その後、図６に示すように、この拡径支持
用心材ａを適宜回転させながら徐々に引き抜くことで摩
擦抵抗を低減させたり、あるいは、図７及び図８に示す
ように、この拡径支持用心材ａを高分子材料からなる紐
状体ｅをスパイラル形状に巻いて筒状に形成し、この紐
状体ｅの逆端から引っ張ってスパイラル形状から解きな
がら除去するようにしている。For this reason, conventionally, as shown in FIG. 5, for example, a plurality of ribs b extending in the length direction are formed on the outer side of a core member a for expanding diameter, and the inner peripheral surface of a cold-shrinkable covering material c is formed. By reducing the contact area or applying a lubricant such as grease, the frictional resistance with the cold-shrinkable coating material c is reduced, and then, as shown in FIG. By gradually pulling out the material a while rotating it appropriately, the frictional resistance can be reduced. Alternatively, as shown in FIGS. The cord e is formed into a tubular shape, and is pulled from the opposite end of the cord-like body e to remove it while unwinding from the spiral shape.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来方法では、以下に示すような不都合があった。However, such a conventional method has the following disadvantages.
【０００６】(1) 先ず、図５に示すようなリブｂ付き拡
径支持用心材ａを用いた場合には、その外面に形成され
るリブｂに常温収縮型被覆材ｃの内面が強く押し当てら
れることによってその内面に段差状の変形が残ってしま
い、常温収縮型被覆材ｃと線材ｄとの密着性が阻害され
てその界面にボイドや面圧の低い部分が発生するといっ
た不都合が発生する。そして、この線材ｄが高電圧絶縁
用の場合、このボイドや面圧の低い部分が存在すること
により電気絶縁性能に悪影響を及ぼす結果となる。(1) First, in the case of using a core member a for expanding diameter with ribs b as shown in FIG. 5, the inner surface of the cold-shrinkable coating material c is strongly pressed against the ribs b formed on the outer surface thereof. Due to the contact, a step-like deformation remains on the inner surface, and the adhesion between the cold-shrinkable coating material c and the wire d is disturbed, and a problem such as generation of a void or a low surface pressure portion at the interface occurs. I do. When the wire d is used for high-voltage insulation, the presence of the voids and a portion having a low surface pressure adversely affects the electrical insulation performance.
【０００７】(2) また、この常温収縮型被覆材ｃと拡径
支持用心材ａとの界面にグリースなどの潤滑剤を塗布す
ると、この潤滑剤がその界面に残ってしまい、被覆後に
常温収縮型被覆材ｃが線材ｄに対してスライドしてずれ
たり、最悪の場合、線材ｄから抜け落ちてしまう等とい
った不都合がある。(2) When a lubricant such as grease is applied to the interface between the cold-shrinkable coating material c and the expanded diameter support core material a, the lubricant remains at the interface, and the cold-shrinkable material is shrunk at normal temperature after coating. There are inconveniences such that the mold covering material c slides with respect to the wire d and, in the worst case, falls off from the wire d.
【０００８】(3) 次に、図７に示すような拡径支持用心
材ａを用いた場合には、 (1)に示したような不都合に加
え、スパイラル状の紐状体ｅを引っ張って拡径支持用心
材ａ全体を除去するような方式であるため、その除去作
業時間が長くなってしまい、作業効率が悪いといった欠
点がある。[0008] (3) Next, in the case of using the expanded core material a as shown in FIG. 7, in addition to the inconvenience shown in (1), the spiral cord e is pulled. Since the system is such that the entire diameter-enlarged supporting core material a is removed, there is a disadvantage that the removing operation time is lengthened and the working efficiency is poor.
【０００９】そこで、本発明はこのような課題を有効に
解決するために案出されたものであり、その目的は、常
温収縮型被覆材内面の変形を効果的に防止できると共
に、被覆作業性に優れた新規な常温収縮型被覆材の被覆
方法を提供するものである。Accordingly, the present invention has been devised in order to effectively solve such problems, and it is an object of the present invention to effectively prevent deformation of a cold-shrinkable coating material inner surface and to improve coating workability. The present invention provides a novel method for coating a room-temperature shrinkable coating material which is excellent in quality.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
に本発明は、筒状の拡径支持用心材上にチューブ状の常
温収縮型被覆材を拡径させて仮被覆した後、この拡径支
持用心材内に線材を挿入してから、その拡径支持用心材
を引き抜きながらその外側の常温収縮型被覆材を上記線
材上に密着して被覆するようにした常温収縮型被覆材の
被覆方法において、上記常温収縮型被覆材を上記拡径支
持用心材上に仮被覆する前に、予めその拡径支持用心材
の外側に摩擦抵抗の小さいフィルムを被覆してからこの
フィルム上に上記常温収縮型被覆材を仮被覆しておき、
その後、この拡径支持用心材をフィルムと共に引き抜き
ながら除去するようにしたものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention expands a tube-shaped cold-shrinkable coating material on a cylindrical expanded-diameter supporting core material and temporarily coats it. After the wire is inserted into the core for diameter support, the cold-shrinkable coating outside the cold-shrinkable coating is tightly coated on the wire while the expanded core for core is pulled out. In the method, before the cold-shrinkable coating material is temporarily coated on the expanded support core, a film having a small frictional resistance is previously coated on the outside of the expanded support core, and then the cold-coated Temporarily cover the shrinkable coating material,
Thereafter, the expanded core material is removed while being pulled out together with the film.
【００１１】すなわち、拡径支持用心材と常温収縮型被
覆材間に摩擦抵抗の小さいスリーブ状のフィルムを介在
させることによって、拡径支持用心材の引き抜き時の摩
擦抵抗が低減されるため、引き抜きに要する作業性が大
幅に向上する。また、摩擦抵抗が低減されることによ
り、従来のように拡径支持用心材と常温収縮型被覆材と
の接触面積を低減するためのリブなどの突起物を設ける
必要がなくなるため、常温収縮型被覆材の変形によるボ
イドや面圧の低い部分の発生を未然に防止することがで
きる。That is, since a sleeve-like film having a small frictional resistance is interposed between the expanded diameter supporting core material and the cold shrinkable coating material, the frictional resistance at the time of pulling out the expanded diameter supporting core material is reduced. The workability required for is greatly improved. In addition, since the frictional resistance is reduced, it is not necessary to provide protrusions such as ribs for reducing the contact area between the core member for expanding diameter support and the cold-shrinkable coating material as in the conventional case. It is possible to prevent the occurrence of voids and low surface pressure parts due to deformation of the coating material.
【００１２】[0012]
【発明の実施の形態】次に、本発明を実施する好適一形
態を添付図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
【００１３】図１及び図２は本発明に係る常温収縮型被
覆材の被覆方法の実施の一形態を示したものであり、図
中１はエチレンプロピレンゴム等からなるチューブ状の
常温収縮型被覆材、２はこの常温収縮型被覆材１を拡径
して仮被覆すべく両端が開口した拡径支持用心材、３は
この常温収縮型被覆材１と拡径支持用心材２との間に介
在されるスリーブ状のフィルム、４はこの常温収縮型被
覆材１が被覆される絶縁電線やケーブル端末、接続部等
の線材である。FIGS. 1 and 2 show an embodiment of a method for coating a cold-shrinkable coating material according to the present invention. In FIG. 1, reference numeral 1 denotes a tubular cold-shrinkable coating made of ethylene propylene rubber or the like. The material 2 is a core material for expanding the diameter of the cold-shrinkable coating material 1 which is open at both ends so as to temporarily cover the material. The sleeve-like film 4 interposed therebetween is a wire material such as an insulated wire, a cable terminal, and a connection portion, which is covered with the cold-shrinkable coating material 1.
【００１４】本発明方法は、先ず、図１に示すように、
両端が開口した筒状の拡径支持用心材２の外側に、この
拡径支持用心材２の長さよりも充分長くなるように形成
されたスリーブ状，あるいはシート状フィルムをスリー
ブ状に巻いたフィルム３を被覆した後、このフィルム３
を介してその外側に図示しない機械力によって強制的に
拡径保持された常温収縮型被覆材１を拡径させた状態で
仮被覆する。この時、使用されるフィルム３は、常温収
縮型被覆材１及び拡径支持用心材２に対して摩擦抵抗の
低い材料から形成されており、例えば、ポリ四フッ化エ
チレン等の摩擦抵抗の低い高分子フィルムが用いられて
いる。また、拡径支持用心材２は、その長さが常温収縮
型被覆材１の長さよりも長く、かつその内径が線材１の
外径よりも充分大きく形成され、少なくともその外面は
凹凸がなく平滑な状態となっている。The method of the present invention firstly comprises the steps shown in FIG.
A film in which a sleeve-shaped or sheet-shaped film formed to be sufficiently longer than the length of the expanded-diameter support core 2 on the outside of the cylindrical expanded-diameter support core 2 whose both ends are open is wound into a sleeve-like shape. 3 after coating this film 3
Is temporarily coated with the room-temperature shrinkable coating material 1 whose diameter has been forcibly expanded and held by a mechanical force (not shown). At this time, the film 3 used is formed of a material having a low frictional resistance with respect to the room-temperature shrinkable coating material 1 and the core member 2 for expanding the diameter, and for example, has a low frictional resistance such as polytetrafluoroethylene. Polymer films are used. The expanded core material 2 has a length longer than that of the cold-shrinkable coating material 1 and an inner diameter sufficiently larger than the outer diameter of the wire 1. At least the outer surface is smooth without irregularities. It is in a state.
【００１５】次に、このように拡径支持用心材２上にフ
ィルム３を介して常温収縮型被覆材１を仮被覆したなら
ば、図１に示すように、拡径支持用心材２の端部から延
びる余剰のフィルム３をその端部から折り返して拡径支
持用心材２内に挿入し、さらに、その端部を拡径支持用
心材２の他端部から外部に露出するような状態としてお
く。Next, if the cold-shrinkable coating material 1 is temporarily coated on the expanded diameter supporting core material 2 via the film 3 as described above, as shown in FIG. The excess film 3 extending from the portion is folded back from its end and inserted into the expanded core 2, and the end is exposed from the other end of the expanded core 2 to the outside. deep.
【００１６】その後、図２に示すように、このフィルム
３の露出端側から拡径支持用心材２内に線材４を挿入し
てその他端部まで貫通させた後、一方の手で常温収縮型
被覆材１が線材４に対してずれないように保持しながら
他方の手でフィルム３の露出端を一気に引っ張る。する
と、図示するようにその引張り力によって拡径支持用心
材２がその引張り方向にスライドしながら引き抜かれる
と同時にフィルム３が常温収縮型被覆材１の内面から剥
がし取られ、これによって拘束が解除された常温収縮型
被覆材１が自身の収縮力によってその端部から径方向内
方に収縮して線材４上に直接密着するように被覆するこ
とになる。Thereafter, as shown in FIG. 2, a wire 4 is inserted from the exposed end side of the film 3 into the expanded support core 2 and penetrated to the other end. With the other hand, the exposed end of the film 3 is pulled at a stretch while holding the coating material 1 so as not to shift with respect to the wire 4. Then, as shown in the drawing, the expanded diameter support core 2 is pulled out while sliding in the pulling direction by the tensile force, and at the same time, the film 3 is peeled off from the inner surface of the cold-shrinkable covering material 1, whereby the restraint is released. The cold-shrinkable coating material 1 shrinks radially inward from its end by its own shrinking force, and coats the wire 4 so as to be in close contact with it.
【００１７】そして、このように常温収縮型被覆材１と
拡径支持用心材２との間にフィルム３を介在させること
により、摩擦抵抗の大きい拡径支持用心材２と常温収縮
型被覆材１とが直接接触して引き抜きに際して互いに擦
れ合うことがなくなることから、摩擦抵抗が大幅に低減
され、常温収縮型被覆材１をスムーズに引く抜くことが
可能となる。さらに、この拡径支持用心材２の引き抜き
に際して、この拡径支持用心材２がフィルム３に対して
擦れ合うことになるが、上述したようにこのフィルム３
は摩擦抵抗の低い高分子フィルムで形成されているた
め、直接常温収縮型被覆材１と接している場合に比べて
摩擦抵抗が極めて小さく、何ら不都合を発生することな
く、拡径支持用心材２をスムーズに引く抜くことが可能
となる。By interposing the film 3 between the cold-shrinkable covering material 1 and the large-diameter supporting core material 2 as described above, the large-diameter supporting core material 2 having a large frictional resistance and the cold-shrinkable covering material 1 are formed. Are not in direct contact with each other and rub against each other at the time of pulling out, so that the frictional resistance is greatly reduced, and the cold shrinkable coating material 1 can be pulled out smoothly. Further, when the expanded diameter supporting core 2 is pulled out, the expanded diameter supporting core 2 rubs against the film 3.
Is formed of a polymer film having a low frictional resistance, the frictional resistance is extremely small as compared with the case where it is in direct contact with the room-temperature shrinkable covering material 1, and there is no inconvenience. Can be pulled out smoothly.
【００１８】また、このように拡径支持用心材２をスム
ーズに引く抜くことができることにより、引き抜き作業
が迅速に行われて作業性が向上し、また、従来のように
拡径支持用心材２表面にリブ等の突起物を設ける必要が
なくなるため、常温収縮型被覆材１の内面に段差状の変
形が生じる等による不都合を招くことがない。Also, since the expanded diameter supporting core 2 can be smoothly pulled out, the drawing operation can be performed quickly and workability can be improved. Since there is no need to provide projections such as ribs on the surface, there is no inconvenience caused by step-like deformation on the inner surface of the cold-shrinkable coating material 1.
【００１９】次に、図３及び図４は本発明方法の他の実
施の形態を示したものである。Next, FIGS. 3 and 4 show another embodiment of the method of the present invention.
【００２０】先ず、図３に示す方法は、常温収縮型被覆
材１と拡径支持用心材２との間に介在されるフィルム３
の他端部、すなわち、拡径支持用心材２側に挿入される
端部の反対側の端部をさらに引き延ばすように延出する
と共に、この延出端部をさらに折り返して拡径支持用心
材２上に被覆して、常温収縮型被覆材１と拡径支持用心
材２との間に重ね合わせるようにしたものである。First, in the method shown in FIG. 3, the film 3 interposed between the cold-shrinkable coating material 1 and the core material 2 for expanding the diameter is used.
, That is, the end opposite to the end inserted into the enlarged diameter support core 2 is further extended, and the extended end is further folded back to extend the extended end. 2 and is superposed between the cold-shrinkable coating material 1 and the core member 2 for supporting the diameter expansion.
【００２１】すなわち、上記実施の形態と同様にこの拡
径支持用心材２内に挿入されたフィルム３の端部を引っ
張って拡径支持用心材２を引き抜いてスライドさせた場
合、上記実施の形態のように、この拡径支持用心材２が
直接、常温収縮型被覆材１側のフィルム３と接触して擦
れ合うのではなく、拡径支持用心材２側に重ね合わされ
たフィルム３同志で擦れ合うようにしたものである。従
って、拡径支持用心材２が直接フィルム３と接触して擦
れ合う場合よりも、摩擦抵抗がさらに低減されることに
なるため、拡径支持用心材２の引き抜きがよりスムーズ
に行われ、引き抜き被覆作業をさらに容易かつ確実に行
うことができる。That is, similarly to the above-described embodiment, when the end of the film 3 inserted into the expanded-diameter support core 2 is pulled to pull out and slide the expanded-diameter support core 2, the above-described embodiment will be described. As described above, the expanded core material 2 does not directly contact and rub against the film 3 on the cold-shrinkable coating material 1 side, but rubs with the films 3 stacked on the expanded core material 2 side. It was made. Therefore, the frictional resistance is further reduced as compared with the case where the expanded diameter supporting core material 2 is directly in contact with the film 3 and rubs against the film 3, so that the expanded diameter supporting core material 2 is more smoothly pulled out, and the drawing coating is performed. The work can be performed more easily and reliably.
【００２２】次に、図４に示す方法は、上述したように
低摩擦抵抗のフィルム３を用いることに加え、その拡径
支持用心材２として、その外径が引き抜き方向に徐々に
拡径した略円錐形状のものを用いるようにしたものであ
る。Next, in the method shown in FIG. 4, in addition to using the film 3 having a low friction resistance as described above, the outer diameter of the core member 2 is gradually increased in the drawing direction. A substantially conical shape is used.
【００２３】すなわち、このように引き抜き方向に拡径
した略円錐形状の拡径支持用心材２を用いると、常温収
縮型被覆材１の収縮力が拡径支持用心材２に対して、引
く抜き方向反対側に分散されるため、よりスムーズに引
き抜きが達成されることになる。That is, by using the substantially conical diameter-enlarged supporting core material 2 whose diameter is increased in the drawing direction in this way, the contraction force of the cold-shrinkable covering material 1 causes the contraction force of the cold-diameter supporting material 2 to be pulled out. Since the particles are dispersed in the opposite direction, the drawing can be more smoothly achieved.
【００２４】[0024]
【発明の効果】以上要するに本発明によれば、以下に示
すような優れた効果を発揮することができる。In summary, according to the present invention, the following excellent effects can be exhibited.
【００２５】(1)常温収縮型被覆材から拡径支持用心材
をスムーズかつ瞬時に引く抜くことができるため、被覆
作業を迅速かつ確実に行うことができる。(1) The core material for expanding support can be pulled out smoothly and instantaneously from the cold-shrinkable coating material, so that the coating operation can be performed quickly and reliably.
【００２６】(2)また、拡径支持用心材を使用すること
ができるため、従来のように常温収縮型被覆材の内面に
変形を生じない。(2) Further, since the core material for supporting the diameter can be used, the inner surface of the cold-shrinkable coating material is not deformed unlike the related art.
【００２７】(3)この結果、ボイドや局部的面圧低下が
生じなくなるため、高電圧の電気絶縁に用いる場合でも
絶縁性能の低下等の不都合を未然に回避することができ
る。(3) As a result, voids and local decrease in surface pressure do not occur. Therefore, even when used for high-voltage electrical insulation, inconveniences such as a decrease in insulation performance can be avoided.
【００２８】(4)使用するフィルムは入手が容易で安価
なものであるため、作業コストも安価となる。(4) Since the film to be used is easily available and inexpensive, the operation cost is also low.
【図１】（Ａ）は本発明方法の実施の一形態を示す側面
図である。（Ｂ）は（Ａ）のＡ−Ａ’線断面図である。FIG. 1A is a side view showing an embodiment of the method of the present invention. (B) is an AA ′ line cross-sectional view of (A).
【図２】本発明に係る被覆方法の実施の一形態を示す説
明図である。FIG. 2 is an explanatory view showing one embodiment of a coating method according to the present invention.
【図３】（Ａ）は本発明方法の他の実施の一形態を示す
側面図である。（Ｂ）は（Ａ）のＡ−Ａ’線断面図であ
る。FIG. 3A is a side view showing another embodiment of the method of the present invention. (B) is an AA ′ line cross-sectional view of (A).
【図４】（Ａ）は本発明方法の他の実施の一形態を示す
側面図である。（Ｂ）は（Ａ）のＡ−Ａ’線断面図であ
る。FIG. 4A is a side view showing another embodiment of the method of the present invention. (B) is an AA ′ line cross-sectional view of (A).
【図５】（Ａ）は従来の被覆方法に使用する拡径支持用
心材の一例を示す側面図である。（Ｂ）は従来の被覆方
法に使用する拡径支持用心材の一例を示す正面図であ
る。FIG. 5 (A) is a side view showing an example of a core member for diameter expansion support used in a conventional coating method. (B) is a front view which shows an example of the core material for diameter expansion support used for the conventional coating method.
【図６】図５に示す従来の拡径支持用心材による被覆方
法の一例を示す説明図である。FIG. 6 is an explanatory view showing an example of a coating method using the conventional core member for diameter expansion shown in FIG.
【図７】（Ａ）は従来の被覆方法に使用する拡径支持用
心材の他の例を示す正面図である。（Ｂ）は従来の被覆
方法に使用する拡径支持用心材の他の例を示す側面図で
ある。FIG. 7A is a front view showing another example of the core member for supporting the diameter expansion used in the conventional coating method. (B) is a side view which shows another example of the core material for diameter expansion support used for the conventional coating method.
【図８】図７に示す従来の拡径支持用心材による被覆方
法の一例を示す説明図である。FIG. 8 is an explanatory view showing an example of a method of coating with the conventional core member for diameter expansion shown in FIG.
１ 常温収縮型被覆材 ２ 拡径支持用心材 ３ フィルム ４ 線材 DESCRIPTION OF SYMBOLS 1 Room-temperature shrinkable coating material 2 Core material for large diameter support 3 Film 4 Wire rod
───────────────────────────────────────────────────── フロントページの続き (72)発明者 能條 仁志 茨城県日立市日高町５丁目１番１号 日立 電線株式会社日高工場内 Ｆターム(参考） 4F211 AA04 AA11 AA17 AA45 AD03 AD05 AD15 AG03 AG14 AH35 SA11 SC01 SD04 SD13 SH18 SJ01 SJ13 SJ15 SJ21 SJ31 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hitoshi Nojo 5-1-1, Hidaka-cho, Hitachi City, Ibaraki Prefecture F-term in the Hidaka Factory, Hitachi Cable, Ltd. 4F211 AA04 AA11 AA17 AA45 AD03 AD05 AD05 AD03 AG03 AG14 AH35 SA11 SC01 SD04 SD13 SH18 SJ01 SJ13 SJ15 SJ21 SJ31
Claims (5)
常温収縮型被覆材を拡径させて仮被覆した後、この拡径
支持用心材内に線材を挿入してから、その拡径支持用心
材を引き抜きながらその外側の常温収縮型被覆材を上記
線材上に密着して被覆するようにした常温収縮型被覆材
の被覆方法において、上記常温収縮型被覆材を上記拡径
支持用心材上に仮被覆する前に、予めその拡径支持用心
材の外側に摩擦抵抗の小さいフィルムを被覆してからこ
のフィルム上に上記常温収縮型被覆材を仮被覆してお
き、その後、この拡径支持用心材をフィルムと共に引き
抜きながら除去するようにしたことを特徴とする常温収
縮型被覆材の被覆方法。1. A tubular cold-shrinkable covering material having a diameter expanded and temporarily covered on a cylindrical expanded support core material, and then a wire is inserted into the expanded support core material and then expanded. In the method for coating a cold-shrinkable coating material outside the cold-shrinkable coating material, the cold-shrinkable coating material outside the cold-shrinkable coating material is coated on the wire while pulling out the cold-shrinkable coating material. Before provisional coating on the material, a film having a small frictional resistance is previously coated on the outside of the expanded support core material, and then the room-temperature shrinkable coating material is provisionally coated on the film. A method for coating a cold shrinkable coating material, wherein the core material for diameter support is removed while being pulled out together with the film.
材の長さよりも長くなるように延出し、その延長部分を
その拡径支持用心材端部で折り返してその内部に挿入し
て他端部から取り出した後、この拡径支持用心材内に上
記線材を挿入してからこのフィルムの露出部分を引っ張
って上記拡径支持用心材を引き抜くようにしたことを特
徴とする請求項１又は２に記載の常温収縮型被覆材の被
覆方法。2. An end portion of the film is extended so as to be longer than a length of the expanded core material, and the extended portion is folded back at the end portion of the expanded core material and inserted into the core. 2. The method according to claim 1, wherein after the wire is taken out from the end, the wire is inserted into the expanded support core, and then the exposed portion of the film is pulled to pull out the expanded support core. 3. The method for coating a cold-shrinkable coating material according to item 2.
ポリ四フッ化エチレンからなるスリーブ状の高分子フィ
ルムを用いたことを特徴とする請求項１に記載の常温収
縮型被覆材の被覆方法。3. The method for coating a room-temperature shrinkable coating material according to claim 1, wherein a sleeve-like polymer film made of polytetrafluoroethylene having low frictional resistance is used as said film.
引き抜き方向にテーパー状に拡径した略円錐形状のもの
を用いたことを特徴とする請求項１〜３のいずれかに記
載の常温収縮型被覆材の被覆方法。4. A core material having a substantially conical shape whose outer diameter is increased in a tapered shape in a drawing direction as said core material for supporting a diameter expansion. A method for coating a cold-shrinkable coating material.
なものを用いたことを特徴とする請求項１〜４のいずれ
かに記載の常温収縮型被覆材の被覆方法。5. The method for coating a room-temperature shrinkable coating material according to claim 1, wherein the core material for supporting the expanded diameter has a smooth outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37055498A JP2000190390A (en) | 1998-12-25 | 1998-12-25 | Coating method for normal temperature shrinkable coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37055498A JP2000190390A (en) | 1998-12-25 | 1998-12-25 | Coating method for normal temperature shrinkable coating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000190390A true JP2000190390A (en) | 2000-07-11 |
Family
ID=18497211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP37055498A Pending JP2000190390A (en) | 1998-12-25 | 1998-12-25 | Coating method for normal temperature shrinkable coating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000190390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3593428A4 (en) * | 2017-03-10 | 2020-12-23 | 3M Innovative Properties Company | Cover assembly with hybrid core structure |
-
1998
- 1998-12-25 JP JP37055498A patent/JP2000190390A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3593428A4 (en) * | 2017-03-10 | 2020-12-23 | 3M Innovative Properties Company | Cover assembly with hybrid core structure |
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