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Title:
OPTICAL FIBER CABLE AND METHOD OF MANUFACTURE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/102996
Kind Code:
A1
Abstract:
[Problem] To provide an optical fiber cable having a protective structure for an optical fiber connection portion wherein a protective structure part of a reduced diameter can be easily produced without needing to use a metal rod and a heat-shrink tube, and a method of manufacture therefor. [Solution] Provided is an optical fiber cable comprising: a connection portion 3 formed between two optical fibers 10A, 10B that are constituted by an optical fiber 1 and a coating material 2 that covers the optical fiber 1, wherein the optical fibers 10A, 10B are connected to each other with the tips of the optical fibers 1 exposed by removing the tips of the coating material 2 being butt-welded together; a cured resin 4 provided around the connection portion 3 to give the same or substantially the same outer diameter as the outer diameter of the portion of the optical fiber to which the coating material 2 is applied; a metal pipe 6 provided around the cured resin 4 with an adhesive layer 5 sandwiched therebetween; and an outer sheath 7 made of a resin tube or an extruded resin layer covering the entire optical fiber cable including the metal pipe 6 along the longitudinal direction.

Inventors:
IIDA, Hidetoku (1053-7, Nagase, Ueda-sh, Nagano 07, 〒3860407, JP)
MATSUI, Takushi (1053-7, Nagase, Ueda-sh, Nagano 07, 〒3860407, JP)
TOMARU, Satoru (1053-7, Nagase, Ueda-sh, Nagano 07, 〒3860407, JP)
Application Number:
JP2018/042843
Publication Date:
May 31, 2019
Filing Date:
November 20, 2018
Export Citation:
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Assignee:
ISHIHARA SANGYO CO., LTD. (1053-7, Nagase Ueda-sh, Nagano 07, 〒3860407, JP)
International Classes:
G02B6/255
Domestic Patent References:
WO2001027673A12001-04-19
Foreign References:
JPS6073506A1985-04-25
JP2017122829A2017-07-13
JP2003315596A2003-11-06
JPS6051514U1985-04-11
JPS6028712U1985-02-26
Attorney, Agent or Firm:
YOSHIMURA, Shunichi (10th Floor, Urbannet Nihonbashi 2-chome Building 1-3, Nihonbashi 2-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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