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1. 发明专利

JPH02216113A OPTICAL CABLE FOR CRYOGENIC SERVICE 失效
公开(公告)号：JPH02216113A
公开(公告)日：1990-08-29
申请号：JP3768289
申请日：1989-02-17
申请人： FUJIKURA LTD , TOKYO GAS CO LTD
发明人： MOGI AKIO , OKADA NAOKI , CHIGIRA SADAO , MISONO NOBUYUKI , SUZUKI HIDEO , ITO TAKESHI , SUYAMA HIROJI
IPC分类号： G02B6/44
摘要： PURPOSE:To allow stable light transmission with a lens transmission loss even at an extremely low temp. by constituting the cable by using optical fibers formed by loosely housing coated fibers coated with a UV curing type resin into metallic tubes. CONSTITUTION:The coated optical fibers 3 of the optical cable to be used for LNG storage facilities, etc., are constituted by loosely housing the optical fibers 1 primarily coated with the UV curing type resin having a good low-temp. charactersitic into the metallic tubes 2 having a low coefft. of expansion. The optical cable 8 for cryogenic service is formed by using such coated optical fibers 3. Since the shrinkage of the metallic tubes 2 is thereby lessened even under the extremely low temp., bending and side pressures are not applied on the fibers 1 and the increase in the transmission loss is prevented. Since the construction is of a loose type, the fibers 1 are kept free from the side pressures even when subjected to abrupt external forces, such as bending, at the time of cabling.

2. 发明专利

JP2015031810A 光ファイバケーブル有权
标题翻译：光纤电缆
公开(公告)号：JP2015031810A
公开(公告)日：2015-02-16
申请号：JP2013160894
申请日：2013-08-02
申请人：株式会社フジクラ , Fujikura Ltd , 日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： TAKEDA DAIKI , OKADA NAOKI , YAMANAKA MASAYOSHI , KAJI TOMOAKI , NAKANE HISAAKI , YAMADA YUSUKE , HAMAGUCHI MASAYA , SHIBATA MASAHIKO
IPC分类号： G02B6/44
CPC分类号： G02B6/443 , G02B6/4433 , G02B6/4495
摘要：【課題】ケーブル中間分岐時に押さえ巻きの収縮による光ファイバ心線の飛び出しを抑制できる光ファイバケーブル。【解決手段】複数の光ファイバ心線4をSZ撚りした光ファイバユニットと、この光ファイバユニットの外周に縦添えされた押さえ巻き5と、この押さえ巻き5の外周に施されたシース8と有する光ファイバケーブルであって、押さえ巻き5の光ファイバユニットに対するラップ率が光ファイバユニットの直径に対して1.5周以上2.0周以下であり、ケーブル長に対する光ファイバ余長率をBとし、ケーブル長に対する押さえ巻き余長率をAとした場合に、0≦̸(B−A)≦̸0.60の関係を有する。【選択図】図1
摘要翻译：要解决的问题：提供一种由于在电缆的中间分支期间由于包装带的收缩而不易弹出光纤芯的光纤电缆。解决方案：光纤电缆包括：包括多个SZ扭曲的光纤芯4的光纤单元; 缠绕在光纤单元周围的缠绕带5以纵向支撑该光纤单元; 以及设置在包装带5周围的护套8.包装带5在光纤单元上的包装率相对于光纤单元的直径为1.5-2.0匝。光纤相对于电缆长度的超过长度比B和包装带的超过长度比A相对于电缆长度满足表示为：0≤（B-A）≤0.60的关系。

3. 发明专利

JP2014219494A 光ファイバケーブル有权
标题翻译：光纤电缆
公开(公告)号：JP2014219494A
公开(公告)日：2014-11-20
申请号：JP2013097435
申请日：2013-05-07
申请人：株式会社フジクラ , Fujikura Ltd , 日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： ONO MASASHI , SHIOBARA SATORU , OKADA NAOKI , NAKANE HISAAKI , HAMAGUCHI MASAYA
IPC分类号： G02B6/44
CPC分类号： G02B6/44
摘要：【課題】中間後分岐の際に光ファイバ心線に加わる曲げを従来よりも少なくすることができ、光ファイバケーブルより光ファイバ心線を容易に取り出すことができる光ファイバケーブルを提供する。【解決手段】外被60内には、光ファイバ心線10,抗張力体20,セパレータ30,介在物40が配置されている。一対のセパレータ30は、外被60と熱融着していない状態で光ファイバ心線10を第1の方向から挟んでいる。一対の介在物40には撚りが加えられており、外被60と熱融着している状態で光ファイバ心線10を第1の方向と交差する第2の方向から挟んでいる。【選択図】図1
摘要翻译：要解决的问题：与传统技术相比，提供一种可以在中跨距离访问期间减少施加到光纤芯的弯曲力的光缆，并且可以容易地从光纤缆提取光纤芯。：在护套60中设置有光纤芯10，拉伸强度体20，隔板30以及外壳40。一对分离器30在不与夹套60热熔融的状态下从第一方向夹持光纤芯10.该对外壳40被扭曲，并且从与第一方向交叉的第二方向握住光纤芯10 在它们被热熔合到护套60的状态下的方向。

4. 发明专利

JP2014077869A Optical fiber cable 有权
标题翻译：光纤电缆
公开(公告)号：JP2014077869A
公开(公告)日：2014-05-01
申请号：JP2012225079
申请日：2012-10-10
申请人： Fujikura Ltd , 株式会社フジクラ , Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TAKE YUKIKO , KUDO YOSHIHITO , ONO MASASHI , SHIOBARA SATORU , OKADA NAOKI , NAKANE HISAAKI , HAMAGUCHI MASAYA
IPC分类号： G02B6/44 , H01B7/36
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cable which enables easy identification of a plurality of optical units contained therein when taking out the optical units in the cable by tearing an outer jacket at a notch.SOLUTION: An optical fiber cable 1 comprises optical units 2 (2A, 2B, 2C), each including a plurality of optical fibers 5 wrapped with a film 4, which are covered by an outer jacket 3 having a rectangular cross-sectional shape. The outer jacket has tension members 12 collinearly arranged on both sides of the optical units, and release paper 13 for taking out the optical units provided above and below the optical units in parallel with a line on which the optical units and the tension members are aligned. Two notches 11 for tearing the outer jacket are provided on each of upper and lower surfaces corresponding to longer sides of the outer jacket, which are positioned such that no optical units are positioned on each line S1 connecting a pair of upper and lower notches. The structure is provided with identification means for identifying each of the plurality of optical units.
摘要翻译：要解决的问题：提供一种光纤电缆，其通过在凹口处撕裂外套来取出电缆中的光学单元时能容易地识别其中包含的多个光学单元。解决方案：光纤电缆1包括光纤单元2（2A，2B，2C），每个包括由膜4包裹的多个光纤5，其被具有矩形横截面形状的外套3覆盖。外护套具有共同设置在光学单元的两侧的张力构件12，以及剥离纸13，用于取出与光学单元和张力构件对准的线平行的光学单元上下设置的光学单元。用于撕裂外套的两个切口11设置在与外护套的较长侧对应的上表面和下表面中的每一个上，这两个切口被定位成使得在连接一对上下凹口的每条线S1上不设置光学单元。该结构设置有用于识别多个光学单元中的每一个的识别装置。

5. 发明专利

JP2014032264A Optical fiber cable 审中-公开
标题翻译：光纤电缆
公开(公告)号：JP2014032264A
公开(公告)日：2014-02-20
申请号：JP2012171592
申请日：2012-08-02
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： TAKE YUKIKO , ITO NAOTO , SHIOBARA SATORU , OKADA NAOKI , MURATA AKIRA
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical fiber cable capable of suppressing snow accretion.SOLUTION: The optical fiber cable includes: a coated optical fiber; a pair of tension members being drawn in parallel with each other with the coated optical fiber held therebetween in the drawing direction of the coated optical fiber; and a jacket which covers the coated optical fiber and the pair of tension members, is of a rectangular shape having a long side parallel to the facing direction of the pair of tension members in a cross section taken perpendicularly to the drawing direction, and has a notch in the side of the long side and an uneven pattern formed on the flat surface in the side of the long side.
摘要翻译：要解决的问题：提供一种能够抑制积雪的光缆的制造方法。解决方案：光缆包括：涂覆光纤; 一对张力构件彼此平行地被拉伸，其中涂覆的光纤沿涂覆的光纤的拉伸方向保持在其间; 并且覆盖被覆光纤和一对张力部件的护套为与所述一对张力部件的相对方向的长边在垂直于拉拔方向截取的截面中具有长边的矩形，并且具有长边侧的凹口和形成在长边侧的平坦表面上的凹凸图案。

6. 发明专利

JP2013195534A Manufacturing method and manufacturing device of optical fiber cable 有权
标题翻译：光纤电缆的制造方法和制造装置
公开(公告)号：JP2013195534A
公开(公告)日：2013-09-30
申请号：JP2012060634
申请日：2012-03-16
申请人： Fujikura Ltd , 株式会社フジクラ , Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： TOMIKAWA KOJI , OKADA NAOKI , TAKEDA DAIKI , YAMANAKA MASAYOSHI , YAMADA YUSUKE , SHIBATA MASAHIKO , TSUNODA DAISUKE , HAMAGUCHI MASAYA
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method and a manufacturing device of an optical fiber cable, which are capable of sufficiently suppressing the degradation of transmission characteristics due to distortion of optical fibers in an optical fiber cable having an aggregate core of intermittently fixed optical fiber ribbons housed in a sheath, even when the optical fiber cable is laid at a smaller bend angle than conventional one.SOLUTION: Each of intermittently fixed optical fiber ribbons 11 constituting an aggregate core 1 is subjected to unidirectional twisting or SZ twisting, and then the respective intermittently fixed optical fiber ribbons 11 are collected to constitute the aggregate core 1, and a sheath 5 is formed on the aggregate core 1.
摘要翻译：要解决的问题：提供一种光纤电缆的制造方法和制造装置，其能够充分地抑制由于具有间断固定的光纤的集束芯的光纤中的光纤的变形而导致的传输特性的劣化即使当光纤电缆被放置在比常规光纤弯曲角更小的弯曲角的情况下，也可以容纳在护套中的光纤带。解决方案：构成集束芯1的每个间歇固定的光纤带11经受单向扭转或SZ扭转，然后收集相应的间歇固定的光纤带11以构成集料芯1，并且在集合芯1上形成护套5。

7. 发明专利

JP2013174678A Optical fiber cable and method of manufacturing optical fiber cable 有权
标题翻译：光纤电缆及制造光纤电缆的方法
公开(公告)号：JP2013174678A
公开(公告)日：2013-09-05
申请号：JP2012038197
申请日：2012-02-24
申请人： Fujikura Ltd , 株式会社フジクラ , Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NAMAZUE AKIRA , MATSUZAWA TAKASHI , OSATO TAKESHI , OKADA NAOKI , HIGASHI YUJI , OHASHI HIROYUKI , HIROTA YOSHINOBU , KATAYAMA KAZUNORI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cable which has excellent flexibility, and can suppress a loss due to bending of an optical fiber caused by shrinkage of a sheath under low temperature.SOLUTION: An optical fiber cable includes a plurality of optical fibers 11, an inner layer sheath 12 directly covering the peripheries of the plurality of optical fibers 11, a tension layer 13 composed of tension fiber covering the periphery of the inner layer sheath 12, and an outer layer sheath 14 covering the periphery of the tension layer 13 and applied with compressive strain in a cable longitudinal direction.
摘要翻译：要解决的问题：提供一种具有优异的柔性的光缆，并且可以抑制由于在低温下鞘的收缩引起的光纤的弯曲的损耗。解决方案：光缆包括多根光纤如图11所示，直接覆盖多根光纤11的周围的内层护套12，由覆盖内层护套12的周围的张力纤维构成的张力层13和覆盖张力层周围的外层护套14 并在电缆纵向上施加压缩应变。

8. 发明专利

JP2013171221A Method for manufacturing optical unit, and optical fiber cable 审中-公开
标题翻译：制造光学单元和光纤电缆的方法
公开(公告)号：JP2013171221A
公开(公告)日：2013-09-02
申请号：JP2012035942
申请日：2012-02-22
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： MATSUZAWA TAKASHI , TAKE YUKIKO , OSATO TAKESHI , OKADA NAOKI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical unit, which is capable of wrapping an optical fiber in a film so as not to affect transmission characteristics of the optical fiber housed in the film and allows reduction in diameter of a cylinder formed of the film.SOLUTION: A film 2 is formed into a cylinder shape so that its both ends 2a and 2b overlap, and an optical fiber 1 is housed in a film cylinder 3 to which a diameter D2 slightly larger than a diameter D1 of a final product is given, and then the film 2 is shrunk by heat to obtain the film cylinder 3 having the diameter D1 as the final product. Because of thermal shrinkage of the plastic film, the film cylinder 3 having a larger diameter is shrunk by heat to have the diameter reduced to a desired diameter. Thus the film cylinder 3 can have the diameter reduced while maintaining the cylindrical shape.
摘要翻译：要解决的问题：提供一种光学单元的制造方法，其能够将光纤包覆在膜中，以便不影响容纳在膜中的光纤的传输特性，并允许减小形成的圆筒的直径的胶片。解决方案：膜2形成为圆筒形状，使得其两端2a和2b重叠，并且光纤1容纳在膜筒3中，直径D2略大于直径D1的直径D2 给出最终产品，然后通过加热收缩薄膜2，得到直径为D1的薄膜滚筒3作为最终产品。由于塑料薄膜的热收缩，具有较大直径的薄膜滚筒3通过加热而收缩直径减小到期望的直径。因此，胶片筒3可以在保持圆柱形状的同时减小直径。

9. 发明专利

JP2013171118A Optical unit, optical fiber take-out method and optical fiber cable 审中-公开
标题翻译：光学单元，光纤采光方法和光纤电缆
公开(公告)号：JP2013171118A
公开(公告)日：2013-09-02
申请号：JP2012034020
申请日：2012-02-20
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： TAKE YUKIKO , MATSUZAWA TAKASHI , OSATO TAKESHI , OKADA NAOKI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical unit in which pop-out of an optical fiber does not occur in small diameter bend, which can be taken out without applying excess bend to the optical fiber when the internal optical fiber is taken out, excess length of the optical fiber does not excessively enter.SOLUTION: There is provided structure of an optical unit 1 which stores a plurality of optical fibers 3 inside a cylinder molded in the cylindrical shape so that both ends 2a and 2b of a belt-like film 2 overlap with each other. In the optical unit 1, a fixed part 5 is formed by adhesives or depositing a mating surface of the film 2, and the fixed part 5 is intermittently provided in the longitudinal direction of the film. Thus, the internal optical fiber 3 does not pop out and catch etc. does not occur when the optical unit 1 is bent to a small diameter.
摘要翻译：要解决的问题：提供一种光学单元，其中在小直径弯曲中不出现光纤的弹出，当取出内部光纤时，可以取出光纤而不对光纤施加过多的弯曲，超出光纤的长度不会过分进入。解决方案：提供了一种光学单元1的结构，光学单元1将多个光纤3存储在模制成圆柱形状的圆筒内，使得带状膜的两端2a和2b 2彼此重叠。在光学单元1中，通过粘合剂或沉积膜2的配合表面形成固定部5，并且在膜的长度方向间歇地设置固定部5。因此，当光学单元1弯曲成小直径时，内部光纤3不会弹出并且不会发生捕获等。

10. 发明专利

JP2013160882A Optical fiber cable and optical unit extraction method 审中-公开
标题翻译：光纤电缆和光学单元提取方法
公开(公告)号：JP2013160882A
公开(公告)日：2013-08-19
申请号：JP2012021786
申请日：2012-02-03
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： TAKE YUKIKO , KUDO YOSHIHITO , ONO MASASHI , SHIOBARA SATORU , OKADA NAOKI
IPC分类号： G02B6/44 , G02B6/00
CPC分类号： G02B6/4433 , G02B6/4495
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cable which allows an internal optical unit to be easily extracted by tearing a sheath with a notch as a tear starting point and hardly brings about transmission loss in optical fibers due to cable bending or temperature variation.SOLUTION: In an optical fiber cable 1, an optical unit 2 having a plurality of optical fibers 5 housed in a film 4 formed like a cylinder so as to have both ends overlapping with each other is coated with a sheath 3 having a rectangular cross-section to constitute an optical fiber cable 2. In the sheath, respective tension members 12 are arranged on both sides of the optical unit on the same line, and pieces of release paper 13 for optical unit extraction are arranged in parallel with the line on which the optical unit and the tension members are arranged, and above and below the optical unit. Two notches 11 for tear are provided on each of upper and lower faces on long sides of the sheath, and the optical unit is not arranged on lines S1 connecting pairs of upper and lower notches.
摘要翻译：要解决的问题：提供一种光纤线缆，其能够通过撕开具有切口的护套作为撕裂起点容易地提取内部光学单元，并且几乎不会由于电缆弯曲或温度变化而导致光纤中的传输损耗。解决方案：在光纤电缆1中，将具有多个光纤5的光学单元2涂覆在具有矩形横截面的护套3上，该多个光纤5容纳在形成为圆筒的膜4中以使其两端彼此重叠，构成光纤电缆2.在护套中，各个张力构件12配置在同一线路上的光学单元的两侧，用于光学单元提取的隔离纸13与其上的线平行布置光学单元和张力构件布置在光学单元的上方和下方。在鞘的长边上的上表面和下表面上设置有用于撕裂的两个切口11，并且光学单元不布置在连接成对上下凹口的线S1上。

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