Title:
【発明の名称】スリット付自己支持型光ケーブルの製造方法
Document Type and Number:
Japanese Patent JP2963456
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To produce the sheath of a self-supporting type optical cable by continuously molding with an extrusion molding machine and simultaneously to form slits by cutting off the neck parts connecting an optical fiber unit wire and a supporting wire at each regular interval in the longitudinal direction of the cable. SOLUTION: The extrusion molding machine for continuously molding the sheath of the self-supporting type optical cable is provided with a die 20. At the molding of the optical cable of the self-supporting type integrated by this die 20, a pin 8 for cutting the neck parts is arranged in front of a hole forming the neck parts connecting the optical fiber unit wire 1 and the supporting wire 2. This pin 8 is fitted into the resin periodically forming the neck parts to cut the neck parts. The resin of the cut neck parts is passed through a resin escape hole 9 opened near the front end of the pin 8 and is released outside, by which the slits are formed.
Inventors:
SAITO KATSUICHI
SAIJO YOSHIAKI
TEZUKA JUJI
KUWAJIMA TAKAHIRO
NEMOTO KAZUMASA
TAKAHASHI KOICHI
SAIJO YOSHIAKI
TEZUKA JUJI
KUWAJIMA TAKAHIRO
NEMOTO KAZUMASA
TAKAHASHI KOICHI
Application Number:
JP30274298A
Publication Date:
October 18, 1999
Filing Date:
October 23, 1998
Export Citation:
Assignee:
NIPPON TAIYO KAITEI DENSEN KK
International Classes:
G02B6/44; H01B11/00; H01B13/00; H01B7/14; (IPC1-7): G02B6/44; G02B6/44
Domestic Patent References:
| JP61267712A | ||||
| JP9300422A | ||||
| JP1090570A | ||||
| JP10332998A |
Attorney, Agent or Firm:
Akio Waki