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    • 2. 发明公开
    • OPTICAL-FIBRE UNIT, OPTICAL-FIBRE BRANCHING METHOD, AND OPTICAL-FIBRE CABLE
    • FASEROPTISCHE EINHEIT,FASEROPTISCHES VERZWEIGUNGSVERFAHREN UND FASEROPTISCHES KABEL
    • EP3056932A1
    • 2016-08-17
    • EP14851501.8
    • 2014-10-01
    • Fujikura, Ltd.
    • ITO, NaotoISHIOKA, MasayukiTOMIKAWA, KoujiOSATO, KenYAMANAKA, MasayoshiOKADA, Naoki
    • G02B6/04G02B6/44
    • An objective of the disclosure is to improve workability in extracting optical fibers in an optical fiber unit in which a bundle of optical fibers is bundled by bundling members, and to suppress/prevent an increase in transmission loss even when tension is applied to the bundling members. This optical fiber unit includes: a plurality of optical fibers; and at least three bundling members that bundle the optical fibers into a bundle. A first bundling member, among the plurality of bundling members, is arranged along a length direction of the bundle of optical fibers so as to be wound on an outer circumference of the bundle of optical fibers. The first bundling member is joined with a second bundling member at a contact point where the first bundling member contacts the second bundling member, and is joined with a third bundling member, which is different from the second bundling member, at a contact point where the first bundling member contacts the third bundling member. The first bundling member's winding direction with respect to the bundle of optical fibers is reversed at the contact point with the second bundling member and at the contact point with the third bundling member.
    • 本公开的目的是提高在光束单元中提取光纤的可操作性,其中一束光纤被捆扎构件捆扎,并且即使在对捆扎构件施加张力时也抑制/防止传输损失的增加 。 该光纤单元包括:多根光纤; 以及至少三个将光纤捆扎成束的捆扎构件。 多个捆扎构件之中的第一捆扎构件沿着光纤束的长度方向配置,卷绕在光纤束的外周。 第一捆扎构件在第一捆扎构件与第二捆扎构件接触的接触点处与第二捆扎构件接合,并且在与第二捆扎构件不同的第三捆扎构件的接触点处接合, 第一捆扎构件与第三捆扎构件接触。 第一捆扎构件相对于光纤束的卷绕方向在与第二捆扎构件的接触点处和与第三捆扎构件的接触点处相反。