JPS5477144A - Optical cable - Google Patents

Optical cable

Info

Publication number
JPS5477144A
JPS5477144A JP14422677A JP14422677A JPS5477144A JP S5477144 A JPS5477144 A JP S5477144A JP 14422677 A JP14422677 A JP 14422677A JP 14422677 A JP14422677 A JP 14422677A JP S5477144 A JPS5477144 A JP S5477144A
Authority
JP
Japan
Prior art keywords
sheath
optical fiber
thermal shrinkage
extrusion
wire
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
Application number
JP14422677A
Other languages
Japanese (ja)
Inventor
Takasada Tanaka
Shigeo Okada
Kazuhiko Takeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 by Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP14422677A priority Critical patent/JPS5477144A/en
Publication of JPS5477144A publication Critical patent/JPS5477144A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate mass-production and to prevent a stress from being concentrated upon an optical fiber by arranging a high tension wire between an inner sheath accommodating an optical fiber and an outer sheath and by specifying the thermal shrinkage of the two sheathes.
CONSTITUTION: An optical fiber 1 coated with a protecting coating 2 of polyamide resin, which is wound helically with a shock absorbing material 3 such as wool string, which is further coated by extrusion with an inner sheath 4. A high tension wire 5 such as aromatic polyamide resin fibers acting as a tension member is arranged outside of the sheath 4, which is further coated by extrusion with an outer sheath 6. In order to obviate slackness in the wire 5 due to thermal shrinkage of the sheath 6, the coefficient of thermal shrinkage of the sheath 6 is made lower than that of the sheath 4.
COPYRIGHT: (C)1979,JPO&Japio
JP14422677A 1977-12-01 1977-12-01 Optical cable Pending JPS5477144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14422677A JPS5477144A (en) 1977-12-01 1977-12-01 Optical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14422677A JPS5477144A (en) 1977-12-01 1977-12-01 Optical cable

Publications (1)

Publication Number Publication Date
JPS5477144A true JPS5477144A (en) 1979-06-20

Family

ID=15357165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14422677A Pending JPS5477144A (en) 1977-12-01 1977-12-01 Optical cable

Country Status (1)

Country Link
JP (1) JPS5477144A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56170817U (en) * 1980-05-21 1981-12-17
JPH0428609U (en) * 1990-06-29 1992-03-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56170817U (en) * 1980-05-21 1981-12-17
JPH0428609U (en) * 1990-06-29 1992-03-06

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