JPS58157302U - fiber optic cable - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

′第１図は従来の光フアイバケーブルの横断面図、第２
図は本考案の光フアイバケーブルの実施例の横断面図で
ある。 １：テンションメンバ、２：内層緩衝層、３：光フアイ
バコア、７：プラスチックシース、８：外層内側緩衝層
、９：外層外側緩衝層。'Figure 1 is a cross-sectional view of a conventional optical fiber cable, Figure 2 is a cross-sectional view of a conventional optical fiber cable.
The figure is a cross-sectional view of an embodiment of the optical fiber cable of the present invention. 1: Tension member, 2: Inner buffer layer, 3: Optical fiber core, 7: Plastic sheath, 8: Outer inner buffer layer, 9: Outer outer buffer layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中心部に配置されたテンションメンバの周囲に複数本の
光フアイバコアが撚り合せ配置され、外周部にシースが
形成された光フアイバケーブルにおいて、上記光フアイ
バコアの配置部の内外層部分に内外層緩衝層が配置され
、かつ、該外層緩衝層は硬さの異なる外層内側緩衝層及
び外層外側緩衝層の２層により形成され、上記３個の緩
衝層の硬さが、内層緩衝層〉外装内側緩衝層〉外層外側
全緩衝層の関係に形成されてなることを特徴とする光フ
アイバケーブル。In an optical fiber cable in which a plurality of optical fiber cores are twisted and arranged around a tension member arranged in the center and a sheath is formed on the outer periphery, an inner and outer layer buffer layer is provided in the inner and outer layer parts of the part where the optical fiber cores are arranged. is arranged, and the outer buffer layer is formed of two layers, an outer inner buffer layer and an outer outer buffer layer, which have different hardnesses, and the hardness of the three buffer layers is such that the hardness of the three buffer layers is as follows: inner buffer layer>exterior inner buffer layer 〉An optical fiber cable characterized in that the outer layer is formed in the relationship of the entire outer buffer layer.