JPH04137404A - Peeled type long substance - Google Patents
Peeled type long substanceInfo
- Publication number
- JPH04137404A JPH04137404A JP2257454A JP25745490A JPH04137404A JP H04137404 A JPH04137404 A JP H04137404A JP 2257454 A JP2257454 A JP 2257454A JP 25745490 A JP25745490 A JP 25745490A JP H04137404 A JPH04137404 A JP H04137404A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- coating layer
- tubular body
- elongated
- cut
- 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
- 239000000126 substance Substances 0.000 title abstract 4
- 239000011247 coating layer Substances 0.000 claims abstract description 36
- 239000013307 optical fiber Substances 0.000 abstract description 33
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000013308 plastic optical fiber Substances 0.000 description 19
- 239000010410 layer Substances 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は、ケーブル本体の如き長尺内包体を覆うように
設けられた被覆層または管状体を備えた皮剥型長尺体の
改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a peel-off type elongated body having a coating layer or a tubular body provided to cover an elongated internal body such as a cable body. It is.
〔従来の技術Ｊ
一般に、ケーブルの如き長尺体は、ケーブル本体等の長
尺内包体の外周に設けられた被覆層を有し、または長尺
内包体か収納される管状体を有する。[Prior Art J] Generally, an elongated body such as a cable has a coating layer provided on the outer periphery of an elongated inner envelope such as a cable body, or has a tubular body in which the elongated inner envelope is housed.
この種の長尺体は、その端末部を加工するためにその被
覆層または管状体を剥取ることか必要である。In order to process the end portion of this type of elongated body, it is necessary to peel off the coating layer or the tubular body.
長尺内包体か光ファイバである場合、端末加工時に光フ
ァイバに傷をつけると、信号伝送特性が著しく低下し、
特にプラスチック光ファイバは、信号伝送に直接間わる
クラッド部分が光フアイバ本体の被覆層をも兼ねている
ので、被覆層を除去する際に光ファイバの表面に傷をつ
けると、伝送特性上致命的な障害となる。If the optical fiber is a long inner package or optical fiber, if the optical fiber is damaged during terminal processing, the signal transmission characteristics will deteriorate significantly.
In particular, with plastic optical fibers, the cladding part that directly connects to signal transmission also serves as a coating layer for the optical fiber body, so if the surface of the optical fiber is damaged when removing the coating layer, it will be fatal to the transmission characteristics. It becomes a serious obstacle.
従って、この被覆層の剥取りを皮剥工具を用いて行なう
場合には、長尺内包体を傷つけないように細心の注意と
高度の技術をもって被覆層を剥取らなければならないの
で作業性が低かった。Therefore, when this coating layer is to be peeled off using a peeling tool, the coating layer must be removed with great care and advanced technique so as not to damage the long inner capsule, resulting in low work efficiency. .
このため、皮剥型の被覆を有する長尺体が提案されてい
るが、従来技術の皮剥型長尺体は、長尺内包体と被覆層
との間に設けられた綿糸の如き引裂き峠を備えており、
皮剥時にはこの引裂き紐を径方向に引っ張って被覆層を
引裂いている。For this reason, an elongated body having a peel-off type coating has been proposed, but the conventional peel-off type elongated body has a tearing pass such as a cotton thread provided between the elongated inner envelope and the coating layer. and
During peeling, the tear string is pulled in the radial direction to tear the coating layer.
〔発明か解決しようとする創１
しかし、被覆層の肉厚は全周に亙って一定の大きな厚み
を有し、従って長尺内包体と被覆層との間の引裂き紐を
径方向に引っ張る際に、被覆層か裂は難いので、長尺内
包体の直径か２０ｍｍ以下で被覆層の厚みが１ｍｍ以下
と比教的薄い場合に適用することかできるたけである。[Problem to be solved by the invention 1 However, the thickness of the covering layer is constant and large over the entire circumference, and therefore the tear string between the elongated inner capsule and the covering layer is pulled in the radial direction. In this case, since the coating layer is difficult to tear, it can only be applied when the diameter of the elongated inner body is 20 mm or less and the thickness of the coating layer is relatively thin, such as 1 mm or less.
その上、この引裂き紐は、被覆層の内面及び長尺内包体
の外周を斤量するため、長尺内包体の表面に紐の傷痕を
残し、またプラスチック光フアイババンドルでは光ファ
イバに微小な曲げによるマイクロベンディングを生しる
ので適用することかできなかった。Furthermore, since the tear string weighs the inner surface of the coating layer and the outer periphery of the long inner wrapper, it leaves scars from the string on the surface of the long inner wrapper, and in the case of plastic optical fiber bundles, the optical fibers may be slightly bent. It could not be applied because it would cause microbending.
また、長尺体が気送型の光フアイバユニットである場合
には、引裂き紐は管状体の内面に埋設されるが、この光
フアイバユニットは、紐によって圧迫されて管状体が扁
平になり、長尺内包体である光フアイバ集合体と管状体
との闇の接触面積か大きくなって気送性か劣化する欠点
がある。更に、引裂き緒か長尺内包体である光フアイバ
集合体の中に入れることも行なわれているか、この場合
には光ファイバと紐との熱的特性、具体的には熱膨張係
数の相違によって使用環境下での温度変化によって伝送
損失を招く欠点かあった。Further, when the elongated body is a pneumatic optical fiber unit, the tearing string is embedded in the inner surface of the tubular body, but the optical fiber unit is compressed by the string and the tubular body becomes flat. There is a drawback that the contact area between the optical fiber assembly, which is a long inner body, and the tubular body becomes large, which deteriorates air delivery performance. In addition, optical fibers have also been put into optical fiber aggregates, such as tear cords or elongated inner bodies. It had the disadvantage of causing transmission loss due to temperature changes in the usage environment.
本発明の目的は、上記の欠点を回避し、皮−１工具を用
いることなく、且つ長尺内包体を傷つけることなく、被
覆層または管状体を容易に剥ぐことかでき、また肉厚が
大きい被覆層または管状体にも容易に適用することかで
きる皮剥型長尺体を提供することにある。The object of the present invention is to avoid the above-mentioned drawbacks, to easily peel off the covering layer or the tubular body without using a skin tool and without damaging the long inner body, and to have a large wall thickness. It is an object of the present invention to provide a peelable elongated body that can be easily applied to a coating layer or a tubular body.
本発明の１つの解決手段は、長尺内包体を覆う被覆層ま
たは管状体を備えた皮剥型長尺体において、被覆層また
は管状体はその内面の一部にその肉厚か他の部分に比べ
て小さくなるように形成された切込みを有することを特
徴とする皮剥型長尺体を提供するものである。One solution of the present invention is a peelable elongated body that is provided with a covering layer or a tubular body that covers the elongated internal body, and the covering layer or the tubular body has a thickness on a part of its inner surface or a thickness of the tubular body on other parts. The object of the present invention is to provide a peel-off type elongated body characterized by having a notch formed to be smaller than that of the present invention.
本発明の他の解決手段は、上記皮剥型長尺体において、
切込みには引裂き紐が沿わされていることを特徴とする
皮剥型長尺体を提供するものである。Another solution of the present invention is that in the peelable elongated body,
To provide a peel-off type elongated body characterized in that a tear string is placed along the cut.
このように、被覆層または管状体はその内面の一部にそ
の肉厚か他の部分に比べて小さくなるように形成された
切込みを有すると、この切込みを有する部分で被覆層ま
たは管状体を切裂いて容易に皮剥ぎすることかでき、ま
た切込みに引裂き紐が沿わされていると、この引裂き紐
を引っ張って被覆層または管状体の肉厚か小さくなりて
いる切込み部分で一層容易に切裂くことができる。In this way, when a covering layer or a tubular body has a notch formed in a part of its inner surface so that its wall thickness is smaller than other parts, the covering layer or tubular body can be removed at the part with this notch. The skin can be easily removed by cutting, and if a tear string is placed along the cut, the tear string can be pulled and the thinner cut of the covering layer or tubular body can be used to cut the skin more easily. It can be torn apart.
本発明の実施例を図面を参照して詳細に説明すると、第
１図は本発明に係る皮剥型長尺体の一実施例を示し、こ
の実施例では、皮剥型長尺体は、気送型光ファイバユニ
ットＩＯＡであるのか示され、この光フアイバユニット
ＩＯＡは、長尺内包体である光フアイバ集合体１２Ａを
覆う被覆層１４を有し、この被覆層１４は、特に第２図
に詳細に示すように、その内面から径方向に延び外周に
達することがない深い切込み１６を有し、この切込み１
６によつて周方向に不連続で径方向の肉厚か他の部分に
比べて小さくなっている。Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of the peelable elongated body according to the present invention, and in this embodiment, the peelable elongated body is This optical fiber unit IOA has a coating layer 14 covering an optical fiber assembly 12A, which is a long inner body, and this coating layer 14 is shown in detail in FIG. As shown in FIG.
6, it is discontinuous in the circumferential direction and the thickness in the radial direction is smaller than that in other parts.
この光フアイバユニットＩＯＡは、この切込み１６を有
する部分の両側で被覆層１４を引っ張って被覆層１４を
切り開いて被覆層１４を剥取ることかできる。The optical fiber unit IOA can be peeled off by pulling the coating layer 14 on both sides of the portion having the cuts 16 to cut the coating layer 14 open.
第３図は第１図の実施例と同様に気送型光ファイバユニ
ットＩＯＡに適用され、切込み１６か被覆層１４の内面
から径方向ではなく、螺旋状に延びていることを除いて
第１図の実施例と全く同じである。この場合には、切込
み１６の先端の肉厚が小さい部分で切り開いて被覆層１
４を剥取ることができる。3 is applied to a pneumatic optical fiber unit IOA in the same manner as the embodiment shown in FIG. This is exactly the same as the embodiment shown in the figure. In this case, the covering layer 1 should be cut out at the tip of the notch 16 where the wall thickness is small.
4 can be removed.
第４図は本発明の他の実施例を示し、この実施例では、
長尺体は光フアイバケーブルＩＯＢであるのか示され、
長尺内包体であるケーブル本体１２Ｂは、介在１８のま
わりに４本の光フアイバコード２０を撚合わせ、その上
に押え巻き２２を施して形成された光フアイバ集合体か
ら成っている。被覆層１４は、例えば塩化ビニルを押出
し成形して形成され、その内面には浅い切込み１６を有
する。この切込み１６は、被覆層１４を押出し成形する
際に押出機の口金に突起を設けたものを用いて容易に形
成することができる。FIG. 4 shows another embodiment of the invention, in which:
It is indicated whether the elongated body is an optical fiber cable IOB,
The cable main body 12B, which is a long inner package, is made of an optical fiber assembly formed by twisting four optical fiber cords 20 around an interposer 18 and applying a presser winding 22 thereon. The covering layer 14 is formed by extruding vinyl chloride, for example, and has a shallow cut 16 on its inner surface. This cut 16 can be easily formed when extruding the coating layer 14 by using an extruder with a projection provided on the mouthpiece.
この光フアイバケーブルＩＯＢは、被覆層１４の切込み
１６で切り裂いて容易に剥取ることかできる。尚、この
切込み１６は、長手方向に連続して延びているのが好ま
しいが、長手方向に間欠的に形成されていてもよく、ま
たこの切込みの数は図示のように２つに限らず、１つま
たは３つ以上であってもよい。This optical fiber cable IOB can be easily peeled off by cutting it at the notch 16 in the coating layer 14. Although it is preferable that the notches 16 extend continuously in the longitudinal direction, they may be formed intermittently in the longitudinal direction, and the number of the notches 16 is not limited to two as shown in the figure. There may be one or three or more.
第５図は本発明の更に他の実施例を示し、この実施例で
は、長尺体はプラスチック光フアイババンドル１０Ｃで
あるのか示されている。このプラスチック光フアイバハ
ンドル１０Ｃは、長尺内包体１２Ｃとして１６本のプラ
スチック光ファイバ２４を撚り合せることなく集合した
プラスチック光フアイバ集合体とこの集合体を収納する
ため押出し成形によって形成された例えば低密度ポリエ
チレンの管状体２６とから成っている。管状体２６は、
その内面に形成された切込み１６と、この切込み１６に
沿わせた弓裂き紐２８（第６図参照）とを有する。この
引裂き紐２８は、管状体２６の熱収縮率とほぼ同じ熱収
縮率を有するか、管状体２６と溶融結合を起こさないよ
うな材料、例えば高密度ポリエチレンから作られ、管状
体２６の押出し成形時に一体に沿わせて管状体２６の内
面の切込み１６に埋めるように取付けられる。FIG. 5 shows yet another embodiment of the invention, in which the elongated body is shown to be a plastic optical fiber bundle 10C. This plastic optical fiber handle 10C includes a plastic optical fiber assembly in which 16 plastic optical fibers 24 are assembled without twisting together as a long inner body 12C, and a plastic optical fiber assembly formed by extrusion molding, for example, at a low density, to house this assembly. It consists of a polyethylene tubular body 26. The tubular body 26 is
It has a notch 16 formed on its inner surface and a bow split string 28 (see FIG. 6) that runs along this notch 16. The tear string 28 is made of a material, such as high-density polyethylene, that has a heat shrinkage rate approximately equal to that of the tubular body 26 or that does not melt bond with the tubular body 26, and is formed by extruding the tubular body 26. Sometimes, it is attached so as to be buried in the notch 16 on the inner surface of the tubular body 26 along the whole body.
このプラスチック光フアイババンドルＩＯＣは、引裂き
紐２８を径方向に引っ張りながら管状体２６を切り開い
て管状体２６を剥取ることができる。This plastic optical fiber bundle IOC can be peeled off by cutting open the tubular body 26 while pulling the tear string 28 in the radial direction.
次に、本発明の具体例を比較例と共にのべる（具体例１
）
第４図に示す構造の光フアイバケーブルを製造するため
に外径１．２ｍｍの介在のまわりに外径２．９ｍｍの４
本の光フアイバコードな撚合せ、その上に押え巻きを施
した後、厚みか１．５ｍｍの塩化ビニルの被覆層を押出
し成形した。このようにして得られた光フアイバケーブ
ルの外径は１０ｍｍであり、また２つの切込みを径方向
に相対する位置に深さ０．５ｍｍで形成した。Next, specific examples of the present invention will be described together with comparative examples (Specific Example 1
) In order to manufacture an optical fiber cable having the structure shown in Fig.
After the optical fiber cord of the book was twisted and pressed, a vinyl chloride coating layer with a thickness of about 1.5 mm was extruded. The outer diameter of the optical fiber cable thus obtained was 10 mm, and two cuts were formed at radially opposite positions with a depth of 0.5 mm.
このようにして得られた光フアイバケーブルの端末加工
時に行なわれた被覆層の除去作業は、被覆切断以外には
工具を用いることなく、１回１ｍ当たり２０秒で行なう
ことができた。また、この被覆除去作業で光フアイバコ
ードに損傷を与えた回数は、２０回中Ｏ回でありた。The removal of the coating layer during the terminal processing of the optical fiber cable obtained in this way could be carried out in 20 seconds per meter without using any tools other than cutting the coating. Furthermore, the number of times that the optical fiber cord was damaged during this coating removal work was O times out of 20 times.
（比較例１）
第４図の光フアイバケーブルと同じ構造を有するか、切
込みを有しない光フアイバケーブルを製造した。材料及
び寸法は具体例１と全く同しであった。(Comparative Example 1) An optical fiber cable having the same structure as the optical fiber cable shown in FIG. 4 or having no notch was manufactured. The materials and dimensions were exactly the same as in Example 1.
このようにして得られた光フアイバケーブルは、被覆切
断以外の工具を用いることなく手で被覆層を剥取ること
かできなかったので、公知のケーブルカッターを用いて
被覆層を除去したか、この作業は、１回１ｍ当たり６０
秒で行なわれ、具体例１の３倍の時間を要した。また、
この場合、被覆除去作業で光フアイバコードに損傷を与
えた回数は２０回中２回であった。Since it was not possible to peel off the coating layer of the optical fiber cable obtained in this way by hand without using tools other than cutting the coating, the coating layer was removed using a known cable cutter or The work is 60 per meter per time.
It took three times as long as in Example 1. Also,
In this case, the number of times that the optical fiber cord was damaged during the coating removal operation was 2 out of 20 times.
（具体例２）
第５図に示す構造のプラスチック光フアイババンドルを
製造するために外径０．５ｍｍの１６本のプラスチック
光ファイバを撚合せることなく集合して平均外径２．３
ｍｍのプラスチック光フアイバ集合体を形成し、またこ
の集合体を収納するために厚みが０．５ｍｍの管状体を
低密度ポリエチレン出押出し成形し、外径が３．３ｍｍ
のプラスチック光フアイババンドルを形成した。この管
状体の成形時に２本の高密度ポリエチレンの引裂き紐を
用いてこの紐によって径方向に相対する切込みを形成し
た。(Specific Example 2) In order to manufacture a plastic optical fiber bundle having the structure shown in FIG.
A plastic optical fiber assembly with a diameter of 3.3 mm was formed, and a tubular body with a thickness of 0.5 mm was extruded from low-density polyethylene to house this assembly, and the outer diameter was 3.3 mm.
A plastic optical fiber bundle was formed. During molding of this tubular body, two high-density polyethylene tear strings were used to form radially opposing cuts with the strings.
このようにして得られたプラスチック光フアイババンド
ルの端末加工時に行なわれた管状体の除去作業は、引裂
き後の切断以外には工具を用いることなく、１回１ｍ当
たり１０秒で行なうことかできた。また、この管状体除
去作業で光フアイバコードに損傷を与えた回数は、２０
回中０回であった。引裂き紐によって具体例１の切込み
部分に生じるような空隙は存在しないのでプラスチック
光フアイババンドルの変形を生じることはないことが注
目される。尚、バンドル外径の扁平率は９２〜９７％で
あった。The process of removing the tubular body during terminal processing of the plastic optical fiber bundle obtained in this manner required no tools except for cutting after tearing, and could be carried out in 10 seconds per 1 m at a time. . In addition, the number of times the optical fiber cord was damaged during this tubular body removal work was 20.
It was 0 times out of 1. It is noted that there is no void created by the tear string in the cut portion of Example 1, and thus no deformation of the plastic optical fiber bundle occurs. Note that the flatness ratio of the bundle outer diameter was 92 to 97%.
（比較例２）
第５ｒｙｉのプラスチック光フアイバハンドルと同じ構
造を有するが、切込み及び引裂き紐を有しないプラスチ
ック光フアイババンドルを製造した。材料及び寸法は具
体例２と全く同じであった。このようにして得られたプ
ラスチック光フアイババンドルは、引裂き後の切断以外
の工具を用いることなく手で管状体を剥取ることかでき
なかったので、公知のケーブルカッターを用いて被覆層
を除去したか、この作業は、１回１ｍ当たり９０秒で行
なわれ、具体例２の９倍の時間を要した。また、この場
合、管状体除去作業でプラスチック光ファイバに損傷を
与えた回数は２０回中５回であった。尚、この比較例で
のバンドル外径の扁平率は９３〜９６％で具体例２とほ
ぼ同じであった。(Comparative Example 2) A plastic fiber optic bundle was produced having the same structure as the plastic fiber optic handle of 5th ryi, but without the cut and tear string. The materials and dimensions were exactly the same as in Example 2. Since the tubular body of the plastic optical fiber bundle thus obtained could not be peeled off by hand without using any tools other than cutting after tearing, the coating layer was removed using a known cable cutter. Moreover, this work was performed for 90 seconds per 1 m, which was 9 times longer than in Example 2. Further, in this case, the number of times the plastic optical fiber was damaged during the tubular body removal work was 5 out of 20 times. Incidentally, the oblateness of the outer diameter of the bundle in this comparative example was 93 to 96%, which was almost the same as in specific example 2.
（具体例３）
第５図のプラスチック光フアイババンドルと同じ構造を
有するが、引裂き紐を有しないプラスチック光フアイバ
バンドルを製造した。材料及び寸法は具体例２と全く同
じであった。このようにして得られたプラスチック光フ
アイババンドルは、引裂き後の切断以外の工具を用いる
ことなく、１回１ｍ当たり１５秒で管状体を除去するこ
とができ、具体例２とほぼ同じであった。また、この場
合、管状＃９大作業でプラスチック光ファイバに損傷を
与えた回数は２０回中Ｏ回であった。しかし、この具体
例では、切込みの存在によって管状体か被覆し難く、そ
の扁平率は８３〜９０％と具体例２よりも悪化している
。(Specific Example 3) A plastic optical fiber bundle having the same structure as the plastic optical fiber bundle of FIG. 5 but without tear strings was manufactured. The materials and dimensions were exactly the same as in Example 2. The plastic optical fiber bundle thus obtained could be removed in 15 seconds per meter without using any tools other than cutting after tearing, which was almost the same as in Example 2. . In addition, in this case, the number of times the plastic optical fiber was damaged in the tubular #9 large work was O times out of 20 times. However, in this specific example, it is difficult to cover the tubular body due to the presence of the notch, and its flatness is 83 to 90%, which is worse than that in specific example 2.
（発明の効果１
本発明によれば、上記のように、被覆層または管状体は
その内面の一部にその肉厚か他の部分に比べて小さくな
るように形成された切込みを有するので、工具を用いる
ことなく、また長尺内包体を損傷することなく、切込み
を有する部分で被覆層または管状体を切裂いて容易に皮
剥ぎすることかでき、特に切込みに引裂き紐が沿わされ
ていると、この引裂き紐を引っ張って被覆層または管状
体の肉厚か小さくなっている切込み部分で一層容易に切
裂くことができるので、被覆層または管状体除去作業を
一層効率よく行なうことができる実益がある。また、引
裂き紐は切込みに沿って設けられているので、長尺内包
体を圧迫することがなく、その特性を悪化させることか
ない、特に、切込みに引裂き紐を沿わせると、被覆層ま
たは管状体との闇に切込みによる空隙が存在しないので
、長尺体の変形を有効に防止することができる。(Effect of the invention 1 According to the present invention, as described above, the coating layer or the tubular body has a notch formed in a part of its inner surface so that its thickness is smaller than that of the other part, The covering layer or the tubular body can be easily peeled off by cutting the covering layer or the tubular body at the part having the cut without using tools or damaging the long inner package, and in particular, the cut has a tear string running along it. By pulling this tear string, the coating layer or tubular body can be more easily torn at the thinner cut portion, so the practical benefit is that the coating layer or tubular body removal work can be carried out more efficiently. In addition, since the tear string is placed along the cut, it does not press the long inner package and does not deteriorate its properties.In particular, when the tear string is placed along the cut, the coating layer Also, since there is no gap between the elongated body and the tubular body due to the cut, deformation of the elongated body can be effectively prevented.
第１図は本発明に係る皮刺型長尺体の一実施例の断面図
、第２図は本発明の要部の拡大断面図、第３図は本発明
の変形例の断面図、第４図及び第５図は本発明の更に他
の異なる実職例の断面図、第６図は第５図の実施例に用
いられる引裂き紐の一部の拡大耕視図である。
１０Ａ乃至１０Ｃ−−一−−皮剥型長尺体、１２Ａ、１
２Ｂ、１２Ｃ−−一−−長尺内包体、１４−−−−一被
覆層、１６−−−−−切込み、２６−−−−−管状体、
２８−−−−一引裂き紐。
特許出−人FIG. 1 is a cross-sectional view of an embodiment of the skin-prick type elongated body according to the present invention, FIG. 2 is an enlarged cross-sectional view of the main part of the present invention, and FIG. 4 and 5 are cross-sectional views of still other different practical examples of the present invention, and FIG. 6 is an enlarged perspective view of a part of the tear cord used in the embodiment of FIG. 5. 10A to 10C--1--Peeling type elongated body, 12A, 1
2B, 12C--1 long internal body, 14--1 covering layer, 16---- cut, 26-- tubular body,
28---One tear string. Patent originator
Claims (2)
剥型長尺体において、前記被覆層または管状体はその内
面の一部にその肉厚が他の部分に比べて小さくなるよう
に形成された切込みを有することを特徴とする皮剥型長
尺体。(1) In a peelable elongated body that is provided with a coating layer or a tubular body that covers the elongated internal body, the coating layer or the tubular body has a wall thickness that is smaller in a part of the inner surface than in other parts. A peelable elongated body characterized by having a notch formed in the skin.
特徴とする請求項第１項に記載の皮剥型長尺体。(2) The peel-off-type elongated body according to claim 1, wherein a tear string is placed along the cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2257454A JPH04137404A (en) | 1990-09-28 | 1990-09-28 | Peeled type long substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2257454A JPH04137404A (en) | 1990-09-28 | 1990-09-28 | Peeled type long substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04137404A true JPH04137404A (en) | 1992-05-12 |
Family
ID=17306564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2257454A Pending JPH04137404A (en) | 1990-09-28 | 1990-09-28 | Peeled type long substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04137404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05257170A (en) * | 1992-03-16 | 1993-10-08 | Fujitsu Ltd | Production of active matrix liquid crystal display device |
| JP2013045005A (en) * | 2011-08-25 | 2013-03-04 | Sumitomo Electric Ind Ltd | Optical fiber cable and sheath removal method for optical fiber cable |
-
1990
- 1990-09-28 JP JP2257454A patent/JPH04137404A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05257170A (en) * | 1992-03-16 | 1993-10-08 | Fujitsu Ltd | Production of active matrix liquid crystal display device |
| JP2013045005A (en) * | 2011-08-25 | 2013-03-04 | Sumitomo Electric Ind Ltd | Optical fiber cable and sheath removal method for optical fiber cable |
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