JPS5480759A - Optical fiber cable - Google Patents

Optical fiber cable

Info

Publication number
JPS5480759A
JPS5480759A JP14905977A JP14905977A JPS5480759A JP S5480759 A JPS5480759 A JP S5480759A JP 14905977 A JP14905977 A JP 14905977A JP 14905977 A JP14905977 A JP 14905977A JP S5480759 A JPS5480759 A JP S5480759A
Authority
JP
Japan
Prior art keywords
optical fiber
twisted wire
assembly
corrugated pipe
pipe
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
JP14905977A
Other languages
Japanese (ja)
Inventor
Toshiaki Matsumoto
Shinya Kojima
Tetsuo Yabuta
Yukiyasu Negishi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP14905977A priority Critical patent/JPS5480759A/en
Publication of JPS5480759A publication Critical patent/JPS5480759A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To produce an optical fiber cable, which has its core free from water pressure or thrust and which is excellent in flexibility, by arranging a corrugated metal pipe on a core assembly and by winding a single or twisted wire concentrically on the metal pipe.
CONSTITUTION: There is arranged on an assembly 2 of optical fiber cores a corrugated pipe 7 of metal such as iron, which is coated with polyethylene. This coating is wound with a twisted wire 8, which is composed of iron wires 9, such that it is turned concentrically clockwise at a twisting pitch about thirteen times of the diameter of the corrugated pipe 7. The resultant winding is protected by an outer protecting layer 6 of PP parn. Thus, even if a tension is applied to the twisted wire 8 so that a compression is exerted between the facing twisted wires, the resultant stress can be prevented from being applied to the optical fiber assembly 2 by the action of the corrugated pipe 7 so that the increase in the transmission loss can be obviated.
COPYRIGHT: (C)1979,JPO&Japio
JP14905977A 1977-12-12 1977-12-12 Optical fiber cable Pending JPS5480759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14905977A JPS5480759A (en) 1977-12-12 1977-12-12 Optical fiber cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14905977A JPS5480759A (en) 1977-12-12 1977-12-12 Optical fiber cable

Publications (1)

Publication Number Publication Date
JPS5480759A true JPS5480759A (en) 1979-06-27

Family

ID=15466761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14905977A Pending JPS5480759A (en) 1977-12-12 1977-12-12 Optical fiber cable

Country Status (1)

Country Link
JP (1) JPS5480759A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164210U (en) * 1980-05-12 1981-12-05
JPS62118211U (en) * 1986-01-21 1987-07-27

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117027B1 (en) * 1970-06-15 1976-05-29
JPS52101052A (en) * 1975-08-14 1977-08-24 Int Standard Electric Corp Optical landlines
JPS52116248A (en) * 1976-03-25 1977-09-29 Nippon Telegr & Teleph Corp <Ntt> Light transmission cable
JPS52121338A (en) * 1976-04-06 1977-10-12 Nippon Telegr & Teleph Corp <Ntt> Cable for optical communication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117027B1 (en) * 1970-06-15 1976-05-29
JPS52101052A (en) * 1975-08-14 1977-08-24 Int Standard Electric Corp Optical landlines
JPS52116248A (en) * 1976-03-25 1977-09-29 Nippon Telegr & Teleph Corp <Ntt> Light transmission cable
JPS52121338A (en) * 1976-04-06 1977-10-12 Nippon Telegr & Teleph Corp <Ntt> Cable for optical communication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164210U (en) * 1980-05-12 1981-12-05
JPS62118211U (en) * 1986-01-21 1987-07-27
JPH0440178Y2 (en) * 1986-01-21 1992-09-21

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