JPH04134304A - Jacket removal device for optical fiber - Google Patents
Jacket removal device for optical fiberInfo
- Publication number
- JPH04134304A JPH04134304A JP2256687A JP25668790A JPH04134304A JP H04134304 A JPH04134304 A JP H04134304A JP 2256687 A JP2256687 A JP 2256687A JP 25668790 A JP25668790 A JP 25668790A JP H04134304 A JPH04134304 A JP H04134304A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- coating
- coating layer
- clamp
- coated optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 105
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims description 47
- 239000011247 coating layer Substances 0.000 claims description 47
- 238000000576 coating method Methods 0.000 claims description 47
- 239000000463 material Substances 0.000 description 8
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007526 fusion splicing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野Ｊ
本発明は被覆光ファイバ相互を接続したり、被覆光ファ
イバを機器に接続する際の端末処理に用いられる被覆除
去装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a coating removal device used for terminal treatment when connecting coated optical fibers to each other or when connecting coated optical fibers to equipment.
「従来の技術ｊ
一般に、光ファイバ相互、および／または、光ファイバ
と光機器とを接続するとき、光コネクタによる接続手段
が広く採用されており、光ファイバ相互の接続では、放
電熱を利用した融着接続手段も広く採用されている。``Conventional technologyj Generally, when connecting optical fibers to each other and/or to connecting optical fibers to optical equipment, connection means using optical connectors are widely used. Fusion splicing means are also widely employed.
これらの接続に際しては、単心プラスチック被覆光ファ
イバ、多心プラスチック被覆光ファイバを問わず、被覆
光ファイバ端部から光ファイバ端部を露出させるための
被覆除去処理が車前に行なわれる。When making these connections, regardless of whether it is a single-core plastic-coated optical fiber or a multi-core plastic-coated optical fiber, a coating removal process is performed in front of the vehicle to expose the end of the coated optical fiber.
被覆光ファイバの端部外周から被覆層を除去するとき、
被覆光ファイバ軸線との交差状態を保持して互いに対向
した一対の刃物を、被覆光ファイバの被覆層に食いこま
せた後、被覆光ファイバおよび／または刃物に、これら
が互いに離反する方向（被覆光ファバの軸線方向）の引
張力を加えるようにしている。When removing the coating layer from the outer periphery of the end of the coated optical fiber,
A pair of blades that are opposed to each other while intersecting the axis of the coated optical fiber are bitten into the coating layer of the coated optical fiber, and then the blades are inserted into the coated optical fiber and/or the blades in the direction in which they move away from each other. A tensile force is applied in the axial direction of the optical fiber.
このようにすると、上記刃物食いこみ箇所において被覆
層の破断が生じ、当該破断により切り離した端末側被覆
層と光ファイバ端部とを相対的に離脱することができる
。In this way, the coating layer is broken at the cutter biting location, and the broken end-side coating layer and the optical fiber end can be relatively separated from each other due to the breakage.
光ファイバの被覆除去において、光ファイバ、被覆層相
互の密着力が弱いときは、被覆層へ食いこませる両刃物
の刃先間隔を適切に保持するだけで、無理なく、しかも
、良好に被覆層を除去することができる。When removing the coating from an optical fiber, if the adhesion between the optical fiber and the coating layer is weak, the coating layer can be removed easily and well by simply maintaining an appropriate distance between the blades of the double-edged tool that bites into the coating layer. Can be removed.
光ファイバの被覆除去において、光ファイバ被覆層相互
の密１カが強いとき、刃物による機械的破断手段のほか
、ヒータによる被覆層の加熱軟化手段をも併用する。In removing the coating from an optical fiber, when the optical fiber coating layers are tightly packed together, in addition to mechanical breaking means using a knife, heating softening means for the coating layer using a heater is also used.
すなわち、被覆層を軟化させることにより、光ファイバ
、被覆層相互の密着力を弱め、これらの相対的な離脱を
容易にする。That is, by softening the coating layer, the adhesion between the optical fiber and the coating layer is weakened, and their relative separation is facilitated.
第５図は上述した技術内容に基づく光ファイバ用被覆除
去装置の一例を示している。FIG. 5 shows an example of an optical fiber coating removal device based on the above-mentioned technical content.
第５図の被覆除去装置において、対をなすクランプ部材
ＩＡ、 ＩＢの開閉面２ａ、２ｂには、一対の被覆切込
部（刃物） ３ａ、３ｂと、一対の被覆押え部４ａ、４
ｂとが互いに分離して設けられ、かつ、両クランプ部材
ＩＡ、ＩＢ相互がヒンジ５により連結されて、一対の被
覆切込部３ａ、３ｂ、一対の被覆押え部４ａ、４ｂが相
対開閉自在に対応しているとともに、一方のクランプ部
材ＩＡには、ヒータ６が埋めこまれている。In the coating removal device shown in FIG. 5, the opening/closing surfaces 2a, 2b of the pair of clamp members IA, IB have a pair of coating notches (cutters) 3a, 3b, and a pair of coating pressing parts 4a, 4.
b are provided separately from each other, and both clamp members IA and IB are connected to each other by a hinge 5, so that the pair of covering notches 3a, 3b and the pair of covering pressing parts 4a, 4b can be opened and closed relative to each other. In addition, a heater 6 is embedded in one of the clamp members IA.
第６図に示す被覆光ファイバ１１は、石英系の光ファイ
バ１２と、光ファイバ１２の外周に形成されたプラスチ
ック製の被覆層１３．１４とからなる。The coated optical fiber 11 shown in FIG. 6 consists of a quartz-based optical fiber 12 and plastic coating layers 13 and 14 formed around the outer periphery of the optical fiber 12. The coated optical fiber 11 shown in FIG.
なお、被覆光ファイバ１１が単心被覆光ファイバのとき
、被覆層１３は光ファイバ１２の内部被覆層被覆層１４
は光ファイバ１２の外部被覆層となり、被覆光ファイバ
１１が、第６図に例示する多心被覆光ファイバのとき、
被覆層１３は各光ファイバごとの単心被覆層、被覆層１
４は各光ファイバ相互の一括被覆層となる。Note that when the coated optical fiber 11 is a single-core coated optical fiber, the coating layer 13 is the inner coating layer coating layer 14 of the optical fiber 12.
is the outer coating layer of the optical fiber 12, and when the coated optical fiber 11 is a multi-core coated optical fiber illustrated in FIG.
The coating layer 13 is a single-core coating layer for each optical fiber, and the coating layer 1
4 is a collective coating layer for each optical fiber.
第５図において、被覆光ファイバ１１の端部外周から被
覆層１３．１４を除去するとき、はじめ、クランプ部材
ＩＢを第５図の矢印工方向へ回動させて、一対の被覆切
込部３ａ、３ｂ、一対の被覆押え部４ａ、４ｂを開放し
、つぎに、クランプ部材ＩＡ側の被覆切込部３ａ、被覆
押え部４ａ上にわたり被覆光ファイバ１１の端部を載せ
、その後、クランプ部材ＩＢを第５図の矢印■方向へ復
帰させて、一対の被覆切込部３ａ、３ｂ、一対の被覆押
え部４ａ、４ｂを閉じ合わせ、かつ、ヒータ６により被
覆層１３．１４の端末部を加熱する。In FIG. 5, when removing the coating layer 13.14 from the outer periphery of the end of the coated optical fiber 11, first, the clamp member IB is rotated in the direction of the arrow in FIG. , 3b, open the pair of coating holding parts 4a and 4b, then place the end of the coated optical fiber 11 over the coating notch 3a and the coating holding part 4a on the side of the clamp member IA, and then place the end of the coated optical fiber 11 on the clamping member IA side. is returned in the direction of the arrow ■ in FIG. do.
このとき、被覆光ファイバ１１の端部が、一対の被覆押
え部４ａ、４ｂを介してクランプされるとともに、一対
の被覆切込部３ａ、３ｂが被覆光ファイバ端部の被覆層
１３．１４に食いこむ。At this time, the end of the coated optical fiber 11 is clamped via the pair of coating pressers 4a, 4b, and the pair of coating notches 3a, 3b are inserted into the coating layer 13.14 at the end of the coated optical fiber. I dig into it.
上記の状態において、被覆光ファイバ１１を第５図の矢
印■方向へ引張ると、被覆切込部３ａ、３ｂの食いこみ
箇所から被覆層１３．１４の破断が生じ、かつ、一対の
被覆押え部４ａ、４ｂによりクランプされて両クランプ
部材ＩＡ、ＩＢ側に残置される切り離し被覆層内から、
光ファイバ１２の端部が抜きとられるので、被覆光ファ
イバ１１は、第７図のごとき被覆除去状態になる。In the above state, when the coated optical fiber 11 is pulled in the direction of the arrow ■ in FIG. From within the cut-off coating layer clamped by 4a and 4b and left on both clamp members IA and IB,
Since the end of the optical fiber 12 is pulled out, the coated optical fiber 11 is in the uncoated state as shown in FIG.
「発明が解決しようとする課題ｊ
上述した被覆除去装置を用いて被覆光ファイバ１１の被
覆除去を実施した場合、被覆層１３．１４の残留応力に
起因し、光ファイバ１２（＝１２ａ、１２ｂ）の突き出
し現象が生じると指摘されている。"Problem to be Solved by the Invention j When the coating removal device described above is used to remove the coating from the coated optical fiber 11, due to residual stress in the coating layer 13.14, the optical fiber 12 (=12a, 12b) It has been pointed out that a protrusion phenomenon occurs.
その発生のメカニズムにつき、第８図〜第１０図を参照
して説明する。The mechanism of this occurrence will be explained with reference to FIGS. 8 to 10.
第８図において、一対の被覆切込部３ａ、３ｂを被覆層
１３．１４に食いこませ、被覆光ファイバ１１を同図の
矢印■方向へ引張ると、その食いこみ部分において被覆
層１３．１４に引張力Ｆが作用し、被覆除去後の被覆層
１３．１４の切断端部に第９図に示す不均一な残留応力
σが発生する。In FIG. 8, when the pair of coating notches 3a and 3b bite into the coating layer 13.14 and the coated optical fiber 11 is pulled in the direction of the arrow A tensile force F is applied to the cut ends of the coating layers 13 and 14 after the coating is removed, and non-uniform residual stress σ shown in FIG. 9 is generated at the cut ends of the coating layers 13 and 14.
この不均一な残留応力σが、第９図のベクトルｖ１、Ｖ
２ （りだし、Ｖ２− Ｖ＋ ＝ ｘ ） テ示を引張
力トシて各光ファイバ１２ａ、１２ｂに作用し、当該残
留応力σが消失したとき、第１０図のように、光ファイ
バ１２ａ、１２ｂの先端がＸの差で不揃いとなる。すな
わち、一方の光ファイバ１２ｂ端が、他方の光ファイバ
１２ａ端よりも突出する（突き出し量ｘ）。This non-uniform residual stress σ is the vector v1, V in FIG.
2 (Start, V2-V+ = x) A tensile force is applied to each optical fiber 12a, 12b, and when the residual stress σ disappears, as shown in FIG. The tips will be uneven due to the difference in X. That is, one end of the optical fiber 12b projects more than the end of the other optical fiber 12a (projection amount x).
このような突き出し現象が生じた場合、単心、多心、い
ずれの被覆光ファイバであっても、光ファイ相互の適切
な接続が行なえず、しかも、光ファイバ接続後において
突き出し現象が顕著になると、伝送損失が増加するばか
りか、光ファイバ接続部が破損することもある。If such a protrusion phenomenon occurs, the optical fibers cannot be connected properly to each other, regardless of whether they are single-core or multi-core coated optical fibers, and furthermore, the protrusion phenomenon becomes noticeable after the optical fibers are connected. In addition to increasing transmission loss, the optical fiber connection may also be damaged.
本発明はかかる技術的課題に鑑み、被覆除去ににおいて
発生する被覆層の残留応力をできるだけ小さくし、既述
の突き出し現象を抑制することのできる光ファイバ用被
覆除去装置を提供しようとするものである。In view of these technical problems, the present invention aims to provide an optical fiber coating removal device that can suppress the above-mentioned protrusion phenomenon by minimizing the residual stress in the coating layer that occurs during coating removal. be.
「課題を解決するための手段ｊ
本発明は、相対開閉自在な一対のクランプ部材からなる
クランプ器を二組備え、その一方のクランプ器における
両クランプ部材の開閉面に、一対の被覆切込部が設けら
れており、これら両クランプ器が、前記被覆切込部と飯
交する方向へ相対移動目するように組み合わされている
光ファイバ用被覆除去装置において、前記両クランプ器
におけるクランプ部材の開閉面に、光ファイバの被覆層
を加熱するための加熱部がそれぞれ設けられていること
を特徴として所期の目的を達成する。Means for Solving the Problems The present invention comprises two sets of clamp devices each consisting of a pair of clamp members that can be opened and closed relative to each other, and one of the clamp devices has a pair of covered notches on the opening/closing surfaces of both clamp members. In the optical fiber sheathing removal device, the clamping devices are combined so as to move relative to each other in directions perpendicular to the sheathing notch. The desired purpose is achieved by providing a heating section on each surface for heating the coating layer of the optical fiber.
１作用」
本発明に係る被覆除去装置を用いて被覆光ファイバの端
部外周から被覆層を除去するとき、以下のようになる。1. Operation When removing the coating layer from the outer periphery of the end of the coated optical fiber using the coating removal device according to the present invention, the following occurs.
はじめ、両クランプ器のクランプ部材（二対）開放し、
つぎに、開放状態にある二対のクランプ部材にわたり、
被覆光ファイバの端部を載せ、その後、これらクランプ
部材（二対）を閉じて、方のクランプ部材に設けられた
一対の被覆切込部を被覆層の切断箇所に食いこませ、か
つ、両クランプ器の所定部所に設けらえた加熱部を介し
て。First, open the clamp members (two pairs) of both clamp devices,
Next, over the two pairs of clamp members in the open state,
Place the end of the coated optical fiber, then close these clamp members (two pairs), insert the pair of coating notches provided in one of the clamp members into the cut part of the coating layer, and then Via a heating section installed at a predetermined location of the clamp device.
被覆層の切断箇所とその両側部分とを加熱する。The cut portion of the coating layer and the portions on both sides thereof are heated.
かかる状態において、両クランプ器を互いに離れる方向
（光ファイバ軸線に沿う方向）へ引張ると、被覆切込部
の食いこみ箇所から被覆層に破断が生じ、かつ、一方の
クランプ器側の被覆光ファイバと一体の光ファイバ端部
が、他方のクランプ器側に残置される切り離し被覆層内
から抜きとられる。In such a state, when both clamps are pulled apart from each other (in the direction along the optical fiber axis), the coating layer will break at the cut-in part of the coating cut, and the coated optical fiber on one clamp side will break. The optical fiber end, which is integral with the clamping device, is pulled out from within the release coating layer left on the other clamping device side.
本発明に係る被覆除去装置の場合、上記被覆除去に際し
て、両クランプ器の加熱部により、被覆層の切断箇所と
その両側部分とを加熱するから、これらの加熱部分には
、既述の引張力による残留応力が殆ど発生しない。In the case of the coating removal device according to the present invention, when removing the coating, the heating parts of both clamps heat the cut part of the coating layer and the parts on both sides thereof, so that the tensile force as described above is applied to these heated parts. Almost no residual stress is generated.
したがって、被覆除去された後の被覆光ファイバには、
残留応力に起因した光ファイバの突き出し現象が発生し
ない。Therefore, after the coating is removed, the coated optical fiber has the following properties:
No protrusion of the optical fiber due to residual stress occurs.
「実 施 例Ｊ
本発明に係る光ファイバ用被覆除去装置の実施例につき
、図面を参照して説明する。Embodiment J An embodiment of the optical fiber coating removal device according to the present invention will be described with reference to the drawings.
第１図〜第３図に示す一方のクランプ器２１において、
対をなすクランプ部材２２．２３は、周知のヒンジ２４
を介して相対開閉自在に連結されており、これらクラン
プ部材２２．２３の開閉面２５．２６には、一対の被覆
切込部２７．２８、一対の被覆挟み部２９．３０、一対
の被覆押え部３１．３２が互いに分離して設けられてい
る。In one clamp device 21 shown in FIGS. 1 to 3,
The pair of clamping members 22, 23 are connected to the well-known hinge 24.
The opening/closing surfaces 25.26 of these clamp members 22.23 include a pair of covering notches 27.28, a pair of covering sandwiching parts 29.30, and a pair of covering holders. Sections 31, 32 are provided separately from each other.
上記クランプ部材２２の開閉面２５においては、その一
端から他端にわたり、被覆切込部２７、被覆挟み部２９
、被覆押え部３１の順に各部が並んでおり、上記クラン
プ部材２３の開閉面２Ｂにおいても、その一端から他端
にわたり、被覆切込部２８、被覆挟み部３０、被覆押え
部３２の顧に各部が並んでいる。In the opening/closing surface 25 of the clamp member 22, from one end to the other end, a covering notch 27 and a covering sandwiching part 29 are provided.
, the coating holding part 31, and on the opening/closing surface 2B of the clamp member 23, from one end to the other, each part is arranged around the coating notch 28, the coating pinching part 30, and the coating holding part 32. are lined up.
被覆押え部３１には、電熱式のヒータ３３が埋めこまれ
ており、このヒータ３３を含む一定領域が開閉面２５の
加熱部３４となっている。An electric heater 33 is embedded in the cover holding part 31, and a certain area including this heater 33 serves as a heating part 34 of the opening/closing surface 25.
クランプ部材２２には、その−側面より突出する二本の
平行したガイド棒３５が設けられている。The clamp member 22 is provided with two parallel guide rods 35 protruding from its negative side.
さらに、クランプ部材２２の開閉面２５には、被覆光フ
ァイバ用のホルダ３Ｂが備えられている。Furthermore, the opening/closing surface 25 of the clamp member 22 is provided with a holder 3B for a coated optical fiber.
第１図〜第３図に示す他方のクランプ器４１において、
対をなすクランプ部材４２．′４３も、周知のヒンジ４
４を介して相対開閉自在に連結されており、これらクラ
ンプ部材４２．４３の開閉面４５．４Ｂには。In the other clamp device 41 shown in FIGS. 1 to 3,
A pair of clamp members 42. '43 is also the well-known hinge 4
4, and are connected to the opening/closing surfaces 45.4B of these clamp members 42.43 so as to be relatively openable and closable.
一対の被覆挟み部４７．４８、一対の被覆押え部４８．
５０が互いに分離して設けられている。A pair of covering pinching parts 47, 48, a pair of covering pressing parts 48.
50 are provided separately from each other.
上記クランプ部材４２の開閉面４５においては、その一
端から他端にわたり、被覆挟み部４７、被覆押え部４８
の順に各部が並んでおり、上記クランプ部材４３の開閉
面４Ｂにおいても、その一端から他端にわたり、被覆挟
み部４８、被覆押え部５０の順に各部が並んでいる。In the opening/closing surface 45 of the clamp member 42, from one end to the other end, a covering sandwiching part 47 and a covering pressing part 48 are provided.
Each part is lined up in this order, and on the opening/closing surface 4B of the clamp member 43, each part is lined up in this order from one end to the other end: the covering pinching part 48 and the covering pressing part 50.
被覆押え部５０には、電熱式のヒータ５１が内蔵されて
おり、このヒータ５１を含む一定領域が開閉面４５の加
熱部５２となっている。An electric heater 51 is built into the cover holding part 50, and a certain area including this heater 51 serves as a heating part 52 of the opening/closing surface 45.
クランプ部材４２には、その長さ方向の一端部に把持部
５３が一体形成されているとともに、当該クランプ部材
４２の一側面から他側面に向けて、前記クランプ部材２
２のガイド棒３５と対応するガイド孔５４が設けられて
いる。The clamp member 42 has a grip portion 53 integrally formed at one end in the length direction, and the clamp member 2
A guide hole 54 corresponding to the second guide rod 35 is provided.
上述した両りランプ器２工、４１は、これら相互に隣接
して配置し、クランプ部材２２側のガイド棒３５をクラ
ンプ部材４２側のガイド孔５４内へ挿入することにより
、被覆切込部２７．２日と直交する方向へ相対移動する
ように組み合わされている。The above-mentioned dual lamp devices 2 and 41 are arranged adjacent to each other, and by inserting the guide rod 35 on the clamp member 22 side into the guide hole 54 on the clamp member 42 side, the covering notch 27 is removed. They are combined so that they move relative to each other in a direction perpendicular to the .2 days.
つぎに、各構成部ないし各構成部材の材料、材質を含め
た詳細について説明する。Next, details including the materials of each component or each component will be explained.
各クランプ部材２２．２３．４２．４３は、硬質材料か
らなり、これらクランプ部材２２．２３．４２．４３の
具体的な材料として金属、硬質合成樹脂（ＦＲＰを含む
）、強化ガラス、セラミックスなどの一つ以上が採用さ
れる。Each clamp member 22.23.42.43 is made of a hard material, and specific materials for these clamp members 22.23.42.43 include metal, hard synthetic resin (including FRP), tempered glass, and ceramics. One or more are adopted.
ここで用いられる硬質合成樹脂の一例として、フェノー
ル樹脂（商品名ベークライト）をあげることができる。An example of a hard synthetic resin used here is phenolic resin (trade name Bakelite).
一対の被覆切込部２７．２８は、金属製の刃物、たとえ
ば、鋼製の焼入刃物からなり、これら被覆切込部２７．
２８は、それぞれ固定板２７ａ、２８ａを介して各クラ
ンプ部材２２．２３に取りつけられている。The pair of covered notches 27 and 28 are made of a metal cutter, for example, a hardened steel cutter.
28 are attached to each clamp member 22, 23 via fixing plates 27a, 28a, respectively.
なお、各被覆切込部（刃物）２７．２８の外側面にゴム
または合成樹脂からなる絶縁部材が当てかわれることも
ある。Note that an insulating member made of rubber or synthetic resin may be applied to the outer surface of each covering notch (blade) 27, 28.
各被覆挟み部２９．３０．４７．４８も、硬質材料から
なるが、これら被覆挟み部２９．３０．４７．４Ｂの場
合は、熱伝導性を有するのが望ましい。Each covering nip 29.30.47.48 is also made of a hard material, but in the case of these covering nip 29.30.47.4B, it is desirable to have thermal conductivity.
これら被覆挟み部２９．３０．４７．４８の具体的な材
料として、耐熱性を有する硬質合成樹脂または金属など
が採用される。As a specific material for these covering sandwich parts 29, 30, 47, 48, heat-resistant hard synthetic resin or metal is used.
各被覆挟み部２９．３０．４７．４８の厚さ（第１図、
第２図の左右方向の寸法）は、被覆光ファイバ１１の種
類、外形などに対応して設定される。Thickness of each coating nip 29, 30, 47, 48 (Fig. 1,
The horizontal dimension in FIG. 2) is set depending on the type, external shape, etc. of the coated optical fiber 11.
−例として、被覆光ファイバ１１が断面円形の単心被覆
光ファイバからなるとき、その外径に対応して各被覆挟
み部２８．３０．４７．４８の厚さが設定され、他側と
して、被覆光ファイバ１１がテープ型の多心被覆光ファ
イバからなるとき、そのテープ幅に対応して各被覆挟み
部２９．３０．４７．４８の厚さが設定される。- For example, when the coated optical fiber 11 is composed of a single-core coated optical fiber with a circular cross section, the thickness of each coated sandwich part 28, 30, 47, 48 is set corresponding to its outer diameter, and as the other side, When the coated optical fiber 11 is a tape-type multicore coated optical fiber, the thickness of each coated sandwich portion 29, 30, 47, and 48 is set corresponding to the width of the tape.
なお、これら被覆挟み部２８．３０．４７．４８が各ク
ランプ部材２２．２３．４２．４３と同じ材料のきき、
該各被覆挟み部２９．３０．４７．４８が、各クランプ
部材２２．２３．４２．４３と一体に形成されることも
ある。It should be noted that these covered sandwich parts 28, 30, 47, 48 are made of the same material as each clamp member 22, 23, 42, 43,
Each covering clip 29.30.47.48 may be formed integrally with each clamping member 22.23.42.43.
両クランプ器２１．４１における一方の被覆押え部３１
、４９は、耐熱性を有する軟質材料、たとえば、シリコ
ーン系の軟質ゴム、軟質合成樹脂からなるが、これの表
面に熱良導性を有する硬質材料、たとえば、ステンレス
スチール、アルミニウム、銅などの金属が張り合わされ
ることがある。One covering presser part 31 in both clamp devices 21.41
, 49 is made of a heat-resistant soft material, such as a silicone-based soft rubber, or a soft synthetic resin, but the surface thereof is made of a hard material having good thermal conductivity, such as a metal such as stainless steel, aluminum, or copper. may be combined.
これら被覆押え部３１．４９の表面側には、被覆光ファ
イバ１１の端部を嵌めこむための細長い溝形が形成され
ることがある。On the surface side of these coated holding parts 31, 49, a long and narrow groove shape may be formed into which the end of the coated optical fiber 11 is fitted.
両クランプ器２！、４１における他方の被覆押え部３２
．５０は、耐熱性を有する軟質材料からなり、これらの
材料としては、シリコーン系の軟質ゴム、軟質合成樹脂
などが採用される。Both clamps 2! , 41, the other covering presser part 32
．． 50 is made of a heat-resistant soft material, such as silicone-based soft rubber or soft synthetic resin.
これら被覆押え部３２．５０の材料が軟質であって耐熱
性、熱良導性をも有するとき、前記被覆押え部３１．４
９に代えて、この被覆押え部３２．５０にヒータ３３．
５１が埋めこまれたり、あるいは、各被覆押え部３１．
３２．４ｅ、５０にそれぞれヒータ３３．５１が埋めこ
まれることもある。When the material of these covering holding parts 32.50 is soft and also has heat resistance and good thermal conductivity, the covering holding parts 31.4
Instead of heater 33.9, heater 33.
51 is embedded, or each coating holding part 31.
Heaters 33.51 may be embedded in each of 32.4e and 50.
各被覆押え部３２．５０も、開閉面２Ｂ、４Ｂと面一で
あってよく、または、開閉面２６．４６から突出してい
てよく、あるいは、逆に、開閉面２６．４６に対し凹ん
でいてよい。Each covering retainer 32.50 may also be flush with the closure surface 2B, 4B or may protrude from the closure surface 26.46 or, conversely, be recessed relative to the closure surface 26.46. good.
その他、各加熱部４４．５０用のヒータ３３．５１は、
公知ないし周知のものからなり、ガイド棒３５は、金属
または硬質合成樹脂からなり、ホルダ３６は、ばねクリ
ップ式、ヒンジ開閉式など、公知ないし周知のクランプ
構造からなる。In addition, the heater 33.51 for each heating section 44.50 is
The guide rod 35 is made of metal or hard synthetic resin, and the holder 36 is made of a known clamp structure such as a spring clip type or a hinge opening/closing type.
上述した図示例の被覆除去装置は、作用の項で述べたと
同様、クランプ、加熱、引き抜きなど操作ないし処理を
介して、被覆光ファイバ１１の端部外周から被覆層１３
．１４を除去し、光ファイバ１２の端部を露出させる。The sheath removal device of the illustrated example described above removes the sheathing layer 13 from the outer periphery of the end of the coated optical fiber 11 through operations or treatments such as clamping, heating, and drawing, as described in the section of operation.
．． 14 is removed to expose the end of the optical fiber 12.
以下、これに基づく本発明被覆除去装置の具体的使用例
を述べる。Hereinafter, a specific usage example of the coating removal apparatus of the present invention based on this will be described.
被覆除去すべき被覆光ファイバ１１としては、被覆層１
４内に互いに並列した二本の光ファイバ１２を有するテ
ープ型のものを選択した。The coated optical fiber 11 whose coating should be removed includes the coating layer 1
A tape-type optical fiber having two optical fibers 12 arranged in parallel within the optical fiber 4 was selected.
この被覆光ファイバ１１の場合、各党ファイバ１２は、
外径１２５ ＩＬ■φの石英系からなり、これら光ファ
イバ１２の外周を個別に覆う各被覆層１３は、ポリイミ
ド樹脂（ナイロン）からなり、該各被覆層１３を一体に
覆う被覆層１４も、縦×横が７８０ル■×４００ ＩＬ
層のポリイミド樹脂からなる。In the case of this coated optical fiber 11, each party fiber 12 is
Each coating layer 13, which is made of quartz and has an outer diameter of 125 IL■φ, and which individually covers the outer periphery of these optical fibers 12, is made of polyimide resin (nylon), and the coating layer 14 which integrally covers each coating layer 13, Length x width 780 ru x 400 IL
The layer consists of polyimide resin.
本発明被覆除去装置については、ホルダ３８を介して被
覆光ファイバ１１を保持し、かつ、両クランプ器２１．
４１のクランプ部材２２．２３．４２．４３をそれぞれ
閉じたとき、対をなす被覆切込部２７．２８の刃先対向
間隔が１２５ｇｍ 、各一対の被覆層み部２９．３０．
４７．４８における各対面間隔が４００１Ｌ鵬、各−対
の被覆層え部３１．３２．４８．５０における各対面間
隔が５０μ■となるようにこれら各部を設定し、両ヒー
タ３３．５１による加熱部４４．５０の温度を約８５℃
に設定した。The coating removal device of the present invention holds the coated optical fiber 11 via the holder 38, and both clamp devices 21.
When the 41 clamp members 22, 23, 42, 43 are closed, the opposing spacing between the cutting edges of the pair of covering notches 27, 28 is 125 gm, and each pair of the covering layered parts 29, 30.
Each of these parts is set so that the distance between each face at 47.48 is 4001L, and the distance between each face at each pair of coating layer parts 31, 32, 48, and 50 is 50 μ■, and heating by both heaters 33 and 51 is performed. The temperature of part 44.50 is about 85℃
It was set to
かかる条件下で被覆光ファイバ１１の端部から被覆層１
３．１４を所定の長さだけ除去したところ、各被覆層１
３．１４の切口が良好な仕上がり状態を呈していた。Under such conditions, the coating layer 1 is removed from the end of the coated optical fiber 11.
3.14 was removed by a predetermined length, each coating layer 1
The cut of 3.14 exhibited a good finished state.
このようにして端末処理された一対の二心被覆光ファイ
バを突き合わせ接続した後、これの突き出し量Ｘを測定
して第４図（Ａ）に示した。After a pair of two-core coated optical fibers having been terminal-treated in this manner were butt-connected, the amount of protrusion X of the two fibers was measured and is shown in FIG. 4(A).
比較のため、第５図の被覆除去装置（従来例）により被
覆除去された一対の二心被覆光ファイバを突き合わせ接
続し、これの突き出し量Ｘを測定して第４図（Ｂ）に示
した。For comparison, a pair of double-core coated optical fibers whose coating was removed by the coating removal device (conventional example) shown in FIG. .
第４図（Ａ） （Ｂ）は、突き出し量Ｘの存在する範囲
を複数の区間に分け、各区間に属する突き出し量Ｘの出
現度数を示したもので、度数を縦軸、突き出し量Ｘを横
軸としている。Figure 4 (A) and (B) divide the range in which the amount of protrusion X exists into multiple sections and show the frequency of appearance of the amount of protrusion X that belongs to each section, with the frequency on the vertical axis and the amount of protrusion The horizontal axis is the horizontal axis.
さらに突き出し量Ｘは、荷重１５ｇのばねな用いて吸収
し、その吸収量から求めたものであるが、これは一対の
被覆光ファイバの値であるから、その吸収量の１７２値
を突き出し量Ｘとしている。Furthermore, the amount of protrusion X is obtained by absorbing the amount using a spring with a load of 15 g, but since this is the value of a pair of coated optical fibers, the 172 value of the amount of absorption is calculated as the amount of protrusion X. It is said that
本発明被覆除去装置により端末処理した後の被覆光ファ
イバの接続例では、第４図（Ａ）のごとく突き出し量ｘ
＋＝０〜１０ＩＬｍのもが度数２０を越えて多く存在し
、突き出し量ｘ＝１０〜２０終層のもは度数Ｂと少ない
。In the connection example of the coated optical fiber after terminal treatment by the sheath removal device of the present invention, the protrusion amount x
There are many cases where +=0 to 10 ILm exceeds a frequency of 20, and there are only a few cases where the protrusion amount x is 10 to 20 and the final layer is B.
それに対し、第５図の被覆除去装置により端末処理した
後の被覆光ファイバの接続例では、第４図（Ｂ）から明
らかなように、突き出し量ｘ＝０〜１０ＪＬ層のもが度
数１２にとどまり、突き出し量Ｘ＝ｌＯ〜２０ｐｍのも
が度数ｌＯと多く、シかも、突き出し量ｘ＝２０〜３０
終脂、３０〜４０終層のごとき劣悪な結果も出ている。On the other hand, in the connection example of the coated optical fiber after terminal treatment using the coating removal device shown in FIG. 5, as is clear from FIG. The number of cases where the protrusion amount X = lO ~ 20pm is as high as lO, and the protrusion amount x = 20 ~ 30.
Poor results such as end fat and end layer of 30 to 40 have also been obtained.
ｒ発明の効果」
以上説明した通り、本発明は所定の光ファイバ用被覆除
去装置において、両クランプ器におけるクランプ部材の
開閉面に、光ファイバの被覆層を加熱するための加熱部
がそれぞれ設けられているから、これを用いて被覆光フ
ァイバの被覆層を除去するとき、被覆層に大きな残留応
力を発生することがなく、シたがって、被覆層の残留応
力に起因した光ファイバの突き出し現象が無視できる程
度に小さくなる。4. Effects of the Invention As explained above, the present invention provides a predetermined optical fiber coating removal device in which heating parts for heating the coating layer of the optical fiber are provided on the opening and closing surfaces of the clamp members in both clamp devices. Therefore, when removing the coating layer of a coated optical fiber using this method, a large residual stress is not generated in the coating layer, and therefore, the protrusion phenomenon of the optical fiber due to the residual stress of the coating layer is prevented. becomes negligible.
第１図、第２図は本発明に係る光ファイバ用被覆除去装
置の一実施例を略示した使用状Ｓ（被覆除去前と被覆除
去後）の各平面図、第３図は本発明に係る光ファイバ用
被覆除去装置の要部拡大断面図、第４図（Ａ）（Ｂ）は
端末の被覆層を除去した後の被覆光ファバにおける光フ
ァイバ突き出し量とその度数分布との関係を示した説明
図、第５図は従来例に係る光ファイバ用被覆除去装置を
略示した切り欠き正面図、第６図は被覆光ファイバの一
例を示した断面図、第７図ないし第１θ図は、光ファイ
バの突き出し現象を解説するための説明図である。
１１・・・・・・・・・・・・被覆光ファイバ１２・・
・・・・・・・・・・光ファイハ１３．１４・・・・・
・・・被覆層
２１．４１・・・・・・・・クランプ部材２２．２３・
・・・・・・・クランプ部材２４・・・・・・・・・・
・・ヒンジ
２５．２６・・・・・・・・開閉面
２７．２８・・・・・・・・被覆切込部３３・・・・・
・・・・・・・ヒータ
３４・・・・・・・・・・・・加熱部
４１・・・・・・・・・・・・クランプ部材４２、４３
・・・・・・・・クランプ部材４４・・・・・・・・・
・・・ヒンジ
４５．４Ｂ・・・・・・・・開閉面
５１・・・・・・・・・・・・ヒータ
５２・・・・・・・・・・・・加熱部FIGS. 1 and 2 are plan views of a usage note S (before and after removing the coating) schematically showing an embodiment of the optical fiber coating removal device according to the present invention, and FIG. FIGS. 4(A) and 4(B), which are enlarged cross-sectional views of main parts of such an optical fiber coating removal device, show the relationship between the amount of optical fiber protrusion and its frequency distribution in the coated optical fiber after the terminal coating layer has been removed. FIG. 5 is a cutaway front view schematically showing a conventional optical fiber coating removal device, FIG. 6 is a sectional view showing an example of a coated optical fiber, and FIGS. , is an explanatory diagram for explaining the protrusion phenomenon of an optical fiber. 11...Coated optical fiber 12...
・・・・・・・・・Optical fiber 13.14・・・・・・
...Covering layer 21.41... Clamp member 22.23.
...... Clamp member 24 ......
...Hinge 25.26...Opening/closing surface 27.28...Coating notch 33...
...... Heater 34 ...... Heating part 41 ...... Clamp members 42, 43
...... Clamp member 44 ......
...Hinge 45.4B...Opening/closing surface 51...Heater 52...Heating part
Claims (1)
を二組備え、その一方のクランプ器における両クランプ
部材の開閉面に、一対の被覆切込部が設けられており、
これら両クランプ器が、前記被覆切込部と直交する方向
へ相対移動するように組み合わされている光ファイバ用
被覆除去装置において、前記両クランプ器におけるクラ
ンプ部材の開閉面に、光ファイバの被覆層を加熱するた
めの加熱部がそれぞれ設けられていることを特徴とする
光ファイバ用被覆除去装置。Two sets of clamp devices each consisting of a pair of clamp members that can be opened and closed relative to each other are provided, and a pair of covered notches are provided on the opening and closing surfaces of both clamp members in one of the clamp devices,
In an optical fiber coating removal device in which both of these clamp devices are combined so as to move relative to each other in a direction perpendicular to the coating cut portion, the coating layer of the optical fiber is provided on the opening/closing surface of the clamp member in both of the clamp devices. What is claimed is: 1. A coating removal device for optical fibers, characterized in that each heating section is provided for heating the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2256687A JPH04134304A (en) | 1990-09-26 | 1990-09-26 | Jacket removal device for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2256687A JPH04134304A (en) | 1990-09-26 | 1990-09-26 | Jacket removal device for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04134304A true JPH04134304A (en) | 1992-05-08 |
Family
ID=17296081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2256687A Pending JPH04134304A (en) | 1990-09-26 | 1990-09-26 | Jacket removal device for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04134304A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9347947B2 (en) | 2009-03-12 | 2016-05-24 | Siemens Healthcare Diagnostics Inc. | Immunoassays employing non-particulate chemiluminescent reagent |
| WO2018207732A1 (en) * | 2017-05-09 | 2018-11-15 | 住友電気工業株式会社 | Optical-fiber coating remover |
| WO2018225679A1 (en) * | 2017-06-09 | 2018-12-13 | 住友電気工業株式会社 | Optical fiber covering removal instrument and optical fiber covering removal method |
-
1990
- 1990-09-26 JP JP2256687A patent/JPH04134304A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9347947B2 (en) | 2009-03-12 | 2016-05-24 | Siemens Healthcare Diagnostics Inc. | Immunoassays employing non-particulate chemiluminescent reagent |
| US9720004B2 (en) | 2009-03-12 | 2017-08-01 | Siemens Healthcare Diagnostics Inc. | Immunoassays employing non-particulate chemiluminescent reagent |
| WO2018207732A1 (en) * | 2017-05-09 | 2018-11-15 | 住友電気工業株式会社 | Optical-fiber coating remover |
| WO2018225679A1 (en) * | 2017-06-09 | 2018-12-13 | 住友電気工業株式会社 | Optical fiber covering removal instrument and optical fiber covering removal method |
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