JPS61116312U - - Google Patents

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Publication number
JPS61116312U
JPS61116312U JP29785U JP29785U JPS61116312U JP S61116312 U JPS61116312 U JP S61116312U JP 29785 U JP29785 U JP 29785U JP 29785 U JP29785 U JP 29785U JP S61116312 U JPS61116312 U JP S61116312U
Authority
JP
Japan
Prior art keywords
tube
optical fiber
coating material
surface portion
shaped coating
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
Application number
JP29785U
Other languages
Japanese (ja)
Other versions
JPH0722644Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985000297U priority Critical patent/JPH0722644Y2/en
Publication of JPS61116312U publication Critical patent/JPS61116312U/ja
Application granted granted Critical
Publication of JPH0722644Y2 publication Critical patent/JPH0722644Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案によるタイトチユーブ型光フ
アイバ心線の第１実施例の概略断面図である。第
２図は、本考案によるタイトチユーブ型光フアイ
バ心線の第２実施例の概略断面図である。第３図
は、第２図に示すタイトチユーブ型光フアイバ心
線を製造するダイの出口部分の概略縦断面図であ
る。第４図は、第３図のダイを使用してのタイト
チユーブ型光フアイバ心線の製造時の、チユーブ
状被覆材料の厚さ方向の剪断応力の分布を示す概
略図である。第５図は、従来のタイトチユーブ型
光フアイバ心線の概略断面図である。 〔主な参照番号〕、１……光フアイバ、２……
チユーブ状被覆材料、３，６……チユーブ状被覆
材料の中間部分、４，７……チユーブ状被覆材料
の内表面部分、５，８……チユーブ状被覆材料の
外表面部分、１０……ダイの中心路、１２……環
状成形口、１４……環状路。 FIG. 1 is a schematic cross-sectional view of a first embodiment of a tight tube type optical fiber according to the present invention. FIG. 2 is a schematic cross-sectional view of a second embodiment of the tight tube type optical fiber according to the present invention. FIG. 3 is a schematic vertical cross-sectional view of the exit portion of a die for producing the tight tube type optical fiber core shown in FIG. 2. FIG. FIG. 4 is a schematic diagram showing the distribution of shear stress in the thickness direction of the tube-shaped coating material during production of a tight-tube type optical fiber core wire using the die of FIG. 3. FIG. 5 is a schematic cross-sectional view of a conventional tight tube type optical fiber. [Main reference numbers], 1...Optical fiber, 2...
Tube-shaped coating material, 3, 6... Middle part of the tube-shaped coating material, 4, 7... Inner surface part of the tube-shaped coating material, 5, 8... Outer surface part of the tube-shaped coating material, 10... Die center path, 12... annular molding opening, 14... annular path.

Claims (1)

【実用新案登録請求の範囲】 (1) チユーブ状被覆材料と、該チユーブ状被覆
材料の内面に密着して該チユーブ状被覆材料内に
収容されている光フアイバとを具備し、前記チユ
ーブ状被覆材料の厚さ方向における中間部分は、
長手方向に配向した高配向樹脂で形成され、外表
面部分は、低配向樹脂で形成されていることを特
徴とするタイトチユーブ型光フアイバ心線。 (2) 前記チユーブ状被覆材料の内表面部分も高
配向樹脂で構成されていることを特徴とする実用
新案登録請求の範囲第(1)項記載のタイトチユー
ブ型光フアイバ心線。 (3) 前記チユーブ状被覆材料の内表面部分は、
低配向樹脂で構成されていることを特徴とする実
用新案登録請求の範囲第(1)項記載のタイトチユ
ーブ型光フアイバ心線。 (4) 前記チユーブ状被覆材料の中間部分、外表
面部分及び内表面部分は、同一の配向性樹脂材料
で構成され、少なくとも外表面部分は低配向度と
されていることを特徴とする実用新案登録請求の
範囲第(1)項から第(3)項までのいずれかに記載の
タイトチユーブ型光フアイバ心線。 (5) 前記チユーブ状被覆材料の少なくとも外表
面部分は、該チユーブ状被覆材料の中間部分の高
配向性樹脂材料とは異なる低配向性樹脂材料で構
成されていることを特徴とする実用新案登録請求
の範囲第(1)項から第(3)項までのいずれかに記載
のタイトチユーブ型光フアイバ心線。[Claims for Utility Model Registration] (1) The tube-shaped coating comprises a tube-shaped coating material, and an optical fiber is housed in the tube-shaped coating material in close contact with the inner surface of the tube-shaped coating material. The middle part in the thickness direction of the material is
A tight tube type optical fiber core wire characterized in that it is formed of a highly oriented resin oriented in the longitudinal direction, and the outer surface portion is formed of a low oriented resin. (2) The tight tube type optical fiber core according to claim 1, wherein the inner surface portion of the tube type coating material is also made of highly oriented resin. (3) The inner surface portion of the tube-shaped coating material is
A tight tube type optical fiber core according to claim (1) of the utility model registration, characterized in that it is made of a low orientation resin. (4) A utility model characterized in that the intermediate portion, outer surface portion, and inner surface portion of the tube-shaped covering material are made of the same oriented resin material, and at least the outer surface portion has a low degree of orientation. A tight tube type optical fiber core according to any one of registered claims (1) to (3). (5) A utility model registration characterized in that at least the outer surface portion of the tube-shaped coating material is made of a low-orientation resin material that is different from the high-orientation resin material of the middle portion of the tube-shaped coating material. A tight tube type optical fiber core according to any one of claims (1) to (3).
JP1985000297U 1985-01-07 1985-01-07 Tight tube type optical fiber core Expired - Lifetime JPH0722644Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985000297U JPH0722644Y2 (en) 1985-01-07 1985-01-07 Tight tube type optical fiber core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985000297U JPH0722644Y2 (en) 1985-01-07 1985-01-07 Tight tube type optical fiber core

Publications (2)

Publication Number Publication Date
JPS61116312U true JPS61116312U (en) 1986-07-23
JPH0722644Y2 JPH0722644Y2 (en) 1995-05-24

Family

ID=30472012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985000297U Expired - Lifetime JPH0722644Y2 (en) 1985-01-07 1985-01-07 Tight tube type optical fiber core

Country Status (1)

Country Link
JP (1) JPH0722644Y2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5069318A (en) * 1973-07-04 1975-06-10
JPS5730172A (en) * 1980-07-28 1982-02-18 Fujitsu Ltd Buffer memory control system
JPS58185456A (en) * 1982-04-21 1983-10-29 Nippon Telegr & Teleph Corp <Ntt> Production of the core for optical fiber
JPS59105601A (en) * 1982-12-10 1984-06-19 Nippon Telegr & Teleph Corp <Ntt> Optical fiber cord having high strength

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5069318A (en) * 1973-07-04 1975-06-10
JPS5730172A (en) * 1980-07-28 1982-02-18 Fujitsu Ltd Buffer memory control system
JPS58185456A (en) * 1982-04-21 1983-10-29 Nippon Telegr & Teleph Corp <Ntt> Production of the core for optical fiber
JPS59105601A (en) * 1982-12-10 1984-06-19 Nippon Telegr & Teleph Corp <Ntt> Optical fiber cord having high strength

Also Published As

Publication number Publication date
JPH0722644Y2 (en) 1995-05-24

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