JP2020134743A - Optical fiber core wire holding member - Google Patents

Optical fiber core wire holding member Download PDF

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JP2020134743A
JP2020134743A JP2019029250A JP2019029250A JP2020134743A JP 2020134743 A JP2020134743 A JP 2020134743A JP 2019029250 A JP2019029250 A JP 2019029250A JP 2019029250 A JP2019029250 A JP 2019029250A JP 2020134743 A JP2020134743 A JP 2020134743A
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optical fiber
core wire
cable
wire holding
opening
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JP7260324B2 (en
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幸司 滝本
Koji Takimoto
幸司 滝本
敦生 釜萢
Atsuo Kamayachi
敦生 釜萢
竹井　賢一
Kenichi Takei
賢一 竹井
彰宏 神尾
Akihiro Kamio
彰宏 神尾
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Shoden Corp
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Shoden Corp
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Abstract

To provide an optical fiber core wire holding member with which it is possible to prevent an increase in the size of the entire member and easily discriminate an optical fiber core wire.SOLUTION: The optical fiber core wire holding member comprises: a cable placement part 1 in which an end of an optical fiber cable is placed on the curved inner surface that conforms to its outer circumferential surface; opening/closing parts 2a, 2b which are openable/closable and respectively attached on both sides at the tip of the cable placement part and having curved inner surfaces conforming to the outer circumferential surface of the optical fiber cable; a plurality of core wire holding walls 4, 5, 6 erected in the cable placement part and on the inner surface of the opening/closing parts, respectively along a lengthwise direction of the optical fiber cable; and holding recesses 7, 8, 9 for holding a tape core wire and formed between the adjacent core wire holding walls. An engaging protrusion 3a is formed in one opening/closing part and an engaging hole 3b engageable with the engaging protrusion 3a is formed in the other opening/closing part.SELECTED DRAWING: Figure 1

Description

本発明は、複数の光ファイバ芯線をチューブ内にまとめたテープ芯線を保持する光ファイバ芯線保持部材に関する。詳しくは、いわゆるスロット型ケーブルのように、テープ芯線を収容するスロットを光ファイバケーブル内に備えることなく、テープ芯線を互いに識別しながら保持可能としたスロットレス型の光ファイバ芯線保持部材に関するものである。 The present invention relates to an optical fiber core wire holding member that holds a tape core wire in which a plurality of optical fiber core wires are put together in a tube. More specifically, it relates to a slotless type optical fiber core wire holding member that can hold the tape core wires while distinguishing them from each other without providing a slot for accommodating the tape core wires in the optical fiber cable like a so-called slot type cable. is there.

図６は、従来のスロット型ケーブルの断面図である。図６において、１０４はスロット形成部１０１の外周面の複数箇所に形成されたスロットである。これらのスロット１０４には、複数の光ファイバ芯線１０３ａをまとめたテープ芯線１０３がそれぞれ収容されている。なお、１０２はテンションメンバ、１０５は吸水材、１０６は外被を示している。 FIG. 6 is a cross-sectional view of a conventional slot type cable. In FIG. 6, 104 is a slot formed at a plurality of locations on the outer peripheral surface of the slot forming portion 101. Each of these slots 104 accommodates a tape core wire 103, which is a collection of a plurality of optical fiber core wires 103a. 102 is a tension member, 105 is a water absorbing material, and 106 is a jacket.

図６に示すスロット型ケーブルでは、各スロット１０４にそれぞれテープ芯線１０３を収容することによって光ファイバ芯線１０３ａの識別が容易であるという利点があるが、スロット１０４を備えたスロット形成部１０１の製造コストが高くなり、また、光ファイバケーブルが全体的に太くなるという問題がある。 The slot-type cable shown in FIG. 6 has an advantage that the optical fiber core wire 103a can be easily identified by accommodating the tape core wire 103 in each slot 104, but the manufacturing cost of the slot forming portion 101 provided with the slot 104 is high. There is also a problem that the optical fiber cable becomes thick as a whole.

そこで、スロット型ケーブルが有する上記の問題を解決するものとして、スロットを用いずに多数の光ファイバ芯線を収容するようにしたスロットレス型ケーブルが提供されている。
例えば、図７は特許文献１に記載されたスロットレス型ケーブルの断面図であり、１１１は被覆、１１２はテンションメンバ、１１３は引裂き紐、１１４は多数の光ファイバ芯線である。
また、図８は特許文献２に記載されたスロットレス型ケーブルの断面図であり、１２１は被覆、１２２はテンションメンバ、１２３は引裂き紐、１２４はチューブ、１２５は多数の光ファイバ芯線である。 Therefore, as a solution to the above-mentioned problem of the slot type cable, a slotless type cable is provided in which a large number of optical fiber core wires are accommodated without using a slot.
For example, FIG. 7 is a cross-sectional view of the slotless cable described in Patent Document 1, where 111 is a coating, 112 is a tension member, 113 is a tear cord, and 114 is a large number of optical fiber core wires.
8 is a cross-sectional view of the slotless cable described in Patent Document 2, where 121 is a coating, 122 is a tension member, 123 is a tear cord, 124 is a tube, and 125 is a large number of optical fiber core wires.

図７や図８に示したスロットレス型ケーブルによれば、図６の従来技術におけるスロット１０４がない分、製造コストの低減を期待することができる。しかしながら、その一方で、光ファイバ芯線ごとの識別が困難であるため、接続先を間違えてしまう等の恐れがある。 According to the slotless cable shown in FIGS. 7 and 8, the manufacturing cost can be expected to be reduced because there is no slot 104 in the conventional technique of FIG. However, on the other hand, since it is difficult to identify each optical fiber core wire, there is a risk that the connection destination may be mistaken.

なお、光ファイバ芯線や光コードの識別を目的とした従来技術としては、特許文献３に記載された光ファイバ用マークバンドや特許文献４に記載された光コード識別タグが知られている。
図９は、特許文献３に記載された光ファイバ用マークバンドを示しており、１３１は光ファイバ芯線、１３２は光ファイバ芯線１３１の回線番号等を表示する表示部、１３３は軟質部材、１３４は基板等への取付脚である。
また、図１０は、特許文献４に記載された光コード識別タグを示しており、１４１は光コード、１４２は光コードに１４１にそれぞれ取り付けられた識別タグである。 As a conventional technique for identifying an optical fiber core wire or an optical code, a mark band for an optical fiber described in Patent Document 3 and an optical code identification tag described in Patent Document 4 are known.
FIG. 9 shows the mark band for an optical fiber described in Patent Document 3, in which 131 is an optical fiber core wire, 132 is a display unit for displaying the line number of the optical fiber core wire 131, etc., 133 is a soft member, and 134 is a soft member. It is a mounting leg for a board or the like.
Further, FIG. 10 shows an optical code identification tag described in Patent Document 4, in which 141 is an optical code and 142 is an identification tag attached to the optical code 141.

特開２０１８−１４６６５１号公報（段落［００２０］、図３等）Japanese Unexamined Patent Publication No. 2018-146651 (paragraph [0020], FIG. 3, etc.) 国際公開第２０１７／１４５９５５（段落［００４９］、図９等）International Publication No. 2017/145955 (paragraph [0049], Fig. 9 etc.) 特開２０００−８９０４１号公報（段落［０００６］〜［００１１］、図２等）Japanese Unexamined Patent Publication No. 2000-89041 (paragraphs [0006] to [0011], FIG. 2, etc.) 特開２０１１−１６０６３８号公報（段落［００３５］、図９，図１０等）Japanese Unexamined Patent Publication No. 2011-160638 (paragraph [0035], FIGS. 9, 10, etc.)

特許文献３に記載された光ファイバ用マークバンドは、例えば４本の光ファイバ芯線１３１を上下から挟持する構造であり、芯線の数が増えるに従ってマークバンドが全体的に大型化してしまい、広い設置スペースが必要になる。
また、特許文献４に記載された光コード識別タグは、光コード１４１の１本ずつに識別タグ１４２を装着しなくてはならないため、光コード１４１の本数が増加するほど、識別タグ１４２の装着作業に多くの手間と時間を要するという問題があった。 The optical fiber mark band described in Patent Document 3 has, for example, a structure in which four optical fiber core wires 131 are sandwiched from above and below, and as the number of core wires increases, the mark band becomes larger as a whole, resulting in a wider installation. Space is needed.
Further, in the optical code identification tag described in Patent Document 4, since the identification tag 142 must be attached to each of the optical codes 141, the identification tag 142 is attached as the number of the optical codes 141 increases. There was a problem that the work required a lot of labor and time.

そこで、本発明の解決課題は、スロットレス型ケーブルの外周面を同心状に包囲するような構造にして部材全体が大型化するのを防ぎ、しかも、光ファイバ芯線を容易に識別し得るように保持可能とした光ファイバ芯線保持部材を提供することにある。 Therefore, the problem of the present invention is to prevent the entire member from becoming large by concentrically surrounding the outer peripheral surface of the slotless cable so that the optical fiber core wire can be easily identified. An object of the present invention is to provide an optical fiber core wire holding member that can be held.

上記課題を解決するため、請求項１に係る発明は、多数の光ファイバ芯線を有するスロットレス型の光ファイバケーブルに装着され、複数の前記光ファイバ芯線をチューブ内に収容したテープ芯線を複数、保持可能な光ファイバ芯線保持部材であって、
前記光ファイバケーブルの端部が、その外周面に適合した湾曲内面に載置されるケーブル載置部と、
前記ケーブル載置部の先端部の両側にそれぞれ付設されて開閉可能であると共に、前記光ファイバケーブルの外周面に適合した湾曲内面を有する一対の開閉部と、
前記光ファイバケーブルの長さ方向に沿って、前記ケーブル載置部の湾曲内面及び前記開閉部の湾曲内面にそれぞれ立設された複数の芯線保持壁と、
隣接する前記芯線保持壁の相互間に形成されて前記テープ芯線を保持する保持凹部と、
を備え、
前記一対の開閉部のうち一方の開閉部には係止突起が形成され、他方の開閉部には、前記係止突起に係止可能な係止孔が形成されていることを特徴とする。 In order to solve the above problem, the invention according to claim 1 comprises a plurality of tape core wires that are attached to a slotless optical fiber cable having a large number of optical fiber core wires and that accommodate the plurality of the optical fiber core wires in a tube. An optical fiber core wire holding member that can be held
A cable mounting portion in which the end portion of the optical fiber cable is mounted on a curved inner surface suitable for the outer peripheral surface thereof, and a cable mounting portion.
A pair of opening / closing portions that are attached to both sides of the tip portion of the cable mounting portion and can be opened / closed, and have a curved inner surface suitable for the outer peripheral surface of the optical fiber cable.
A plurality of core wire holding walls erected on the curved inner surface of the cable mounting portion and the curved inner surface of the opening / closing portion along the length direction of the optical fiber cable.
A holding recess formed between the adjacent core wire holding walls to hold the tape core wire,
With
One of the opening / closing portions of the pair of opening / closing portions is formed with a locking projection, and the other opening / closing portion is characterized in that a locking hole that can be locked to the locking projection is formed.

請求項２に係る発明は、請求項１に記載した光ファイバ芯線保持部材において、前記ケーブル載置部の前記芯線保持壁とは反対側の端部に、前記光ファイバケーブルの外周面を保持するケーブル押さえを配置したことを特徴とする。 According to the second aspect of the present invention, in the optical fiber core wire holding member according to the first aspect, the outer peripheral surface of the optical fiber cable is held at the end of the cable mounting portion opposite to the core wire holding wall. It is characterized by arranging a cable retainer.

請求項３に係る発明は、請求項１または請求項２に記載した光ファイバ芯線保持部材において、前記ケーブル載置部及び前記開閉部にそれぞれ形成された前記芯線保持壁の先端部に、前記テープ芯線の抜脱を防止する抜け止めを形成したことを特徴とする。 The invention according to claim 3 is the tape on the tip of the core wire holding wall formed in the cable mounting portion and the opening / closing portion in the optical fiber core wire holding member according to claim 1 or 2. It is characterized by forming a retainer that prevents the core wire from being pulled out.

本発明によれば、複数のテープ芯線を回線ごとに識別しながら保持凹部によって保持することができる。このため、目的とする回線とは異なる回線の光ファイバ芯線を誤って引き出したり、誤接続するおそれがない。
また、本発明に係る芯線保持部材は、開閉部を閉じた状態で光ファイバケーブルの先端部を包囲する同心円状の部材として形成することができる。これにより、部材全体の小型化、低コスト化が可能である。 According to the present invention, a plurality of tape core wires can be held by the holding recesses while being identified for each line. Therefore, there is no possibility that the optical fiber core wire of a line different from the target line is erroneously pulled out or erroneously connected.
Further, the core wire holding member according to the present invention can be formed as a concentric member that surrounds the tip end portion of the optical fiber cable with the opening / closing portion closed. As a result, it is possible to reduce the size and cost of the entire member.

本発明の実施形態の斜視図（図１（ａ））、正面図（図１（ｂ））、及び、主要部の拡大正面図（図１（ｃ））である。It is a perspective view (FIG. 1 (a)), a front view (FIG. 1 (b)), and an enlarged front view (FIG. 1 (c)) of the main part of the embodiment of the present invention. 本発明の実施形態の平面図である。It is a top view of the Embodiment of this invention. 本発明の実施形態の側面図である。It is a side view of the Embodiment of this invention. 本発明の実施形態の使用状態を示す斜視図である。It is a perspective view which shows the use state of embodiment of this invention. 本発明の実施形態の使用状態を示す正面図である。It is a front view which shows the use state of embodiment of this invention. 従来のスロット型光ファイバケーブルの断面図である。It is sectional drawing of the conventional slot type optical fiber cable. 特許文献１に記載されたスロットレス型光ファイバケーブルの断面図である。It is sectional drawing of the slotless type optical fiber cable described in Patent Document 1. 特許文献２に記載されたスロットレス型光ファイバケーブルの断面図である。It is sectional drawing of the slotless type optical fiber cable described in Patent Document 2. 特許文献３に記載された従来技術を示す斜視図である。It is a perspective view which shows the prior art described in Patent Document 3. 特許文献４に記載された従来技術を示す平面図である。It is a top view which shows the prior art described in Patent Document 4. FIG.

以下、図に沿って本発明の実施形態を説明する。
まず、図１（ａ）は本発明の実施形態に係る光ファイバ芯線保持部材の斜視図であり、図１（ｂ）は同じく正面図、図１（ｃ）は主要部の拡大正面図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, FIG. 1A is a perspective view of an optical fiber core wire holding member according to an embodiment of the present invention, FIG. 1B is a front view, and FIG. 1C is an enlarged front view of a main part. ..

図１（ａ），（ｂ）において、１は光ファイバケーブル（図示せず）の外周面に適合した湾曲内面を有するケーブル載置部であり、その後端部には、光ファイバケーブルの外周面を保持する一対のケーブル押さえ１０，１１が設けられている。
ケーブル載置部１の前端部内面には、ケーブル載置部１の長さ方向に沿って複数の芯線保持壁４が所定間隔で立設され、隣合う芯線保持壁４の相互間には保持凹部７が形成されている。これらの保持凹部７は、複数の光ファイバ芯線をシリコンチューブに収容してなる後述のテープ芯線を保持するためのものである。 In FIGS. 1 (a) and 1 (b), 1 is a cable mounting portion having a curved inner surface suitable for the outer peripheral surface of the optical fiber cable (not shown), and the rear end portion is the outer peripheral surface of the optical fiber cable. A pair of cable retainers 10 and 11 for holding the cable are provided.
A plurality of core wire holding walls 4 are erected at predetermined intervals along the length direction of the cable mounting portion 1 on the inner surface of the front end portion of the cable mounting portion 1, and are held between the adjacent core wire holding walls 4. The recess 7 is formed. These holding recesses 7 are for holding a tape core wire described later, which is formed by accommodating a plurality of optical fiber core wires in a silicon tube.

また、ケーブル載置部１の前端部の左右には、ケーブル載置部１と同様に、光ファイバケーブルの外周面に適合した湾曲内面を有する開閉部２ａ，２ｂがそれぞれ開閉自在に付設されている。これらの開閉部２ａ，２ｂの内面にも、前述した芯線保持壁４と同様に芯線保持壁５，６がそれぞれ立設されており、隣合う芯線保持壁５の相互間、及び、芯線保持壁６の相互間には、前記同様にテープ芯線を保持するための保持凹部８，９がそれぞれ形成されている。
更に、図１（ｂ）の左側、及び、これを拡大した図１（ｃ）に示すように、ケーブル載置部１及び開閉部２ａ，２ｂにそれぞれ形成された芯線保持壁４，５，６の各先端部には、テープ芯線の抜脱を防止するための抜け止め４ａ，５ａ，６ａが形成されている。 Further, on the left and right sides of the front end portion of the cable mounting portion 1, like the cable mounting portion 1, opening / closing portions 2a and 2b having curved inner surfaces suitable for the outer peripheral surface of the optical fiber cable are attached so as to be openable and closable. There is. Similar to the above-mentioned core wire holding wall 4, core wire holding walls 5 and 6 are erected on the inner surfaces of these opening / closing portions 2a and 2b, respectively, and between adjacent core wire holding walls 5 and between the core wire holding walls 5 and the core wire holding wall. Holding recesses 8 and 9 for holding the tape core wire are formed between the two, respectively, as described above.
Further, as shown on the left side of FIG. 1 (b) and an enlarged view of FIG. 1 (c), the core wire holding walls 4, 5 and 6 formed on the cable mounting portion 1 and the opening / closing portions 2a and 2b, respectively. Retainers 4a, 5a, 6a are formed at each tip of the tape to prevent the tape core wire from being pulled out.

開閉部２ａ，２ｂの、ケーブル載置部１側とは反対側の各一端には、係止突起３ａと係止孔３ｂとがそれぞれ形成されている。図１（ａ），（ｂ）の左側は開閉部２ａ，２ｂを開いた状態、右側は開閉部２ａ，２ｂを閉じた状態であり、開閉部２ａ，２ｂを閉じて係止突起３ａを係止孔３ｂに係止させることにより、ケーブル載置部１上の図示されていない光ファイバケーブルを開閉部２ａ，２ｂによって確実に抱持することが可能になっている。 A locking projection 3a and a locking hole 3b are formed at one end of each of the opening / closing portions 2a and 2b on the side opposite to the cable mounting portion 1 side. The left side of FIGS. 1A and 1B shows the opening / closing portions 2a and 2b open, and the right side shows the opening / closing portions 2a and 2b closed. The opening / closing portions 2a and 2b are closed to engage the locking projection 3a. By locking the stop hole 3b, an optical fiber cable (not shown) on the cable mounting portion 1 can be securely held by the opening / closing portions 2a and 2b.

なお、図２は開閉部２ａ，２ｂを開いた状態の平面図、図３は開閉部２ａ，２ｂを閉じた状態の側面図である。
ここで、本実施形態に係る光ファイバ芯線保持部材は、例えばプラスチックによって形成されている。 FIG. 2 is a plan view of the opening / closing portions 2a and 2b in an open state, and FIG. 3 is a side view of the opening / closing portions 2a and 2b in a closed state.
Here, the optical fiber core wire holding member according to the present embodiment is made of, for example, plastic.

次に、図４は、この実施形態の使用状態を示す斜視図である。図４において、２０はスロットレス型ケーブルとしての光ファイバケーブルであり、多数の光ファイバ芯線２１が外被２２によって被覆されている。
また、光ファイバ芯線２１を複数まとめてシリコンチューブ２３に通すことにより、テープ芯線２４が形成される。これらの、テープ芯線２４は、例えばＦＴＴＨ（Fiber To The Home）用の光通信線として使用されるものであり、接続先の回線ごとに１本のテープ芯線２４を対応させている。 Next, FIG. 4 is a perspective view showing a usage state of this embodiment. In FIG. 4, reference numeral 20 denotes an optical fiber cable as a slotless cable, and a large number of optical fiber core wires 21 are covered with an outer cover 22.
Further, the tape core wire 24 is formed by passing a plurality of optical fiber core wires 21 together through the silicon tube 23. These tape core wires 24 are used as, for example, optical communication lines for FTTH (Fiber To The Home), and one tape core wire 24 is associated with each connection destination line.

図５は、複数のテープ芯線２４をこの芯線保持部材によって保持する様子を示している。
図示するように、テープ芯線２４はケーブル載置部１の内面の保持凹部７、または、開閉部２ａ，２ｂの内面の保持凹部８，９に挿入して保持することができる。図示例では、全ての保持凹部７，８，９を用いた場合に、最大で１５本（１５回線分）のテープ芯線２４をそれぞれ分離した状態で収容することが可能である。 FIG. 5 shows how the plurality of tape core wires 24 are held by the core wire holding member.
As shown in the figure, the tape core wire 24 can be inserted and held in the holding recess 7 on the inner surface of the cable mounting portion 1 or the holding recesses 8 and 9 on the inner surface of the opening / closing portions 2a and 2b. In the illustrated example, when all the holding recesses 7, 8 and 9 are used, it is possible to accommodate up to 15 tape core wires 24 (for 15 lines) in a separated state.

なお、芯線保持壁４，５，６によって形成される保持凹部７，８，９の数は、図示例に何ら限定されないことは言うまでもなく、また、テープ芯線２４に収容される光ファイバ芯線２１の数も図示例に何ら限定されるものではない。 Needless to say, the number of the holding recesses 7, 8 and 9 formed by the core wire holding walls 4, 5 and 6 is not limited to the illustrated example, and the optical fiber core wire 21 housed in the tape core wire 24 The number is not limited to the illustrated example.

本実施形態の芯線保持部材を用いれば、複数のテープ芯線２４を回線ごとに識別しながら保持することができるため、目的とする回線とは異なる回線の光ファイバ芯線を誤って引き出したり、誤接続する等のおそれがない。
また、係止突起３ａを係止孔３ｂに係止させることで開閉部２ａ，２ｂを強固に閉じてテープ芯線２４及び光ファイバケーブル２０を把持することができると共に、芯線保持壁４，５，６の先端部に形成した抜け止め４ａ，５ａ，６ａにより、保持凹部７，８，９からのテープ芯線２４の抜け落ちを確実に防止することができる。 By using the core wire holding member of the present embodiment, a plurality of tape core wires 24 can be held while being identified for each line, so that an optical fiber core wire of a line different from the target line can be erroneously pulled out or erroneously connected. There is no risk of doing so.
Further, by locking the locking projection 3a to the locking hole 3b, the opening / closing portions 2a and 2b can be firmly closed to grip the tape core wire 24 and the optical fiber cable 20, and the core wire holding walls 4, 5 and 5 can be gripped. The retaining 4a, 5a, 6a formed at the tip of the 6 can surely prevent the tape core wire 24 from coming off from the holding recesses 7, 8 and 9.

１：ケーブル載置部
２ａ，２ｂ：開閉部
３ａ：係止突起
３ｂ：係止孔
４，５，６：芯線保持壁
４ａ，５ａ，６ａ：抜け止め
７，８，９：保持凹部
１０，１１：ケーブル押さえ
２０：光ファイバケーブル
２１：光ファイバ芯線
２２：外被
２３：シリコンチューブ
２４：テープ芯線 1: Cable mounting parts 2a, 2b: Opening and closing parts 3a: Locking protrusions 3b: Locking holes 4, 5, 6: Core wire holding walls 4a, 5a, 6a: Retaining 7, 8, 9: Holding recesses 10, 11 : Cable holder 20: Optical fiber cable 21: Optical fiber core wire 22: Outer cover 23: Silicon tube 24: Tape core wire

Claims (3)

多数の光ファイバ芯線を有するスロットレス型の光ファイバケーブルに装着され、複数の前記光ファイバ芯線をチューブ内に収容したテープ芯線を複数、保持可能な光ファイバ芯線保持部材であって、
前記光ファイバケーブルの端部が、その外周面に適合した湾曲内面に載置されるケーブル載置部と、
前記ケーブル載置部の先端部の両側にそれぞれ付設されて開閉可能であると共に、前記光ファイバケーブルの外周面に適合した湾曲内面を有する一対の開閉部と、
前記光ファイバケーブルの長さ方向に沿って、前記ケーブル載置部の湾曲内面及び前記開閉部の湾曲内面にそれぞれ立設された複数の芯線保持壁と、
隣接する前記芯線保持壁の相互間に形成されて前記テープ芯線を保持する保持凹部と、
を備え、
前記一対の開閉部のうち一方の開閉部には係止突起が形成され、他方の開閉部には、前記係止突起に係止可能な係止孔が形成されていることを特徴とする光ファイバ芯線保持部材。 An optical fiber core wire holding member that is attached to a slotless type optical fiber cable having a large number of optical fiber core wires and can hold a plurality of tape core wires containing the plurality of the optical fiber core wires in a tube.
A cable mounting portion in which the end portion of the optical fiber cable is mounted on a curved inner surface suitable for the outer peripheral surface thereof, and a cable mounting portion.
A pair of opening / closing portions that are attached to both sides of the tip portion of the cable mounting portion and can be opened / closed, and have a curved inner surface suitable for the outer peripheral surface of the optical fiber cable.
A plurality of core wire holding walls erected on the curved inner surface of the cable mounting portion and the curved inner surface of the opening / closing portion along the length direction of the optical fiber cable.
A holding recess formed between the adjacent core wire holding walls to hold the tape core wire,
With
A light characterized in that a locking projection is formed in one of the pair of opening / closing portions, and a locking hole that can be locked in the locking projection is formed in the other opening / closing portion. Fiber core wire holding member. 請求項１に記載した光ファイバ芯線保持部材において、
前記ケーブル載置部の前記芯線保持壁とは反対側の端部に、前記光ファイバケーブルの外周面を保持するケーブル押さえを配置したことを特徴とする光ファイバ芯線保持部材。 In the optical fiber core wire holding member according to claim 1,
An optical fiber core wire holding member characterized in that a cable retainer for holding an outer peripheral surface of the optical fiber cable is arranged at an end portion of the cable mounting portion on the side opposite to the core wire holding wall. 請求項１または請求項２に記載した光ファイバ芯線保持部材において、
前記ケーブル載置部及び前記開閉部にそれぞれ形成された前記芯線保持壁の先端部に、前記テープ芯線の抜脱を防止する抜け止めを形成したことを特徴とする光ファイバ芯線保持部材。 In the optical fiber core wire holding member according to claim 1 or 2.
An optical fiber core wire holding member characterized in that a retaining member for preventing the tape core wire from being pulled out is formed at the tip of the core wire holding wall formed in the cable mounting portion and the opening / closing portion, respectively.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075328A (en) * 1993-03-09 1995-01-10 Ube Nitto Kasei Co Ltd Slot for carrying optical fiber and its production, optical fiber cable using this slot and its production
JPH09329717A (en) * 1996-06-10 1997-12-22 Fujikura Ltd Protection member for optical fiber
JP2008003332A (en) * 2006-06-22 2008-01-10 Chugoku Electric Power Co Inc:The Closure for cable connection
JP2012053134A (en) * 2010-08-31 2012-03-15 Furukawa Electric Co Ltd:The Optical fiber closure and holding structure of branch cable
JP2013064825A (en) * 2011-09-16 2013-04-11 Viscas Corp Holder, optical composite power cable, and optical cable connection method
US20170003468A1 (en) * 2015-06-30 2017-01-05 Corning Optical Communications LLC Optical fiber cable and assembly
WO2017110114A1 (en) * 2015-12-25 2017-06-29 株式会社フジクラ Optical fiber cable branching member and optical fiber cable branching structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075328A (en) * 1993-03-09 1995-01-10 Ube Nitto Kasei Co Ltd Slot for carrying optical fiber and its production, optical fiber cable using this slot and its production
JPH09329717A (en) * 1996-06-10 1997-12-22 Fujikura Ltd Protection member for optical fiber
JP2008003332A (en) * 2006-06-22 2008-01-10 Chugoku Electric Power Co Inc:The Closure for cable connection
JP2012053134A (en) * 2010-08-31 2012-03-15 Furukawa Electric Co Ltd:The Optical fiber closure and holding structure of branch cable
JP2013064825A (en) * 2011-09-16 2013-04-11 Viscas Corp Holder, optical composite power cable, and optical cable connection method
US20170003468A1 (en) * 2015-06-30 2017-01-05 Corning Optical Communications LLC Optical fiber cable and assembly
WO2017110114A1 (en) * 2015-12-25 2017-06-29 株式会社フジクラ Optical fiber cable branching member and optical fiber cable branching structure

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