JP2002031741A - Method and structure for fixing connector and cord - Google Patents
Method and structure for fixing connector and cordInfo
- Publication number
- JP2002031741A JP2002031741A JP2000216466A JP2000216466A JP2002031741A JP 2002031741 A JP2002031741 A JP 2002031741A JP 2000216466 A JP2000216466 A JP 2000216466A JP 2000216466 A JP2000216466 A JP 2000216466A JP 2002031741 A JP2002031741 A JP 2002031741A
- Authority
- JP
- Japan
- Prior art keywords
- cord
- stopper
- connector
- pressing
- jacket
- 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.)
- Granted
Links
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光ファイバコード
や電気コードといった各種コードとコネクタするための
方法及び構造に関するものであり、特に多心の光ファイ
バコードと光コネクタの固定に適した方法及び構造に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and structure for connecting to various cords such as an optical fiber cord and an electric cord, and more particularly to a method and a method suitable for fixing a multi-core optical fiber cord to an optical connector. It is about structure.
【０００２】[0002]
【従来の技術】従来の光コネクタと光ファイバコードの
固定構造の一例を図７（ａ）（ｂ）に基づいて説明す
る。図７（ａ）（ｂ）に示す固定構造は外被（シース）
Ａが剥離された光ファイバコードＢの心線Ｃをコネクタ
ハウジングＤ内に挿通し、剥離させた外被Ｂを同ハウジ
ングＤの後端部Ｅの外側に被せ、この外被Ｂをその外側
に被せたリング状の止め具Ｆをかしめて加圧変形させる
ことによって前記後端部Ｅに圧着固定したものである。2. Description of the Related Art An example of a conventional structure for fixing an optical connector and an optical fiber cord will be described with reference to FIGS. The fixing structure shown in FIGS. 7A and 7B is a sheath.
The core C of the optical fiber cord B from which A has been peeled is inserted into the connector housing D, and the peeled jacket B is placed on the outside of the rear end E of the housing D, and the jacket B is placed on the outside. The ring-shaped stopper F is crimped and deformed under pressure to fix it to the rear end portion E by pressure.
【０００３】[0003]
【発明が解決しようとする課題】従来の光コネクタと光
ファイバケーブルの固定構造は、単心の光ファイバコー
ド等のように断面形状が真円のコードを固定する場合に
は特に問題はないが、多心のコードの場合には次によう
な問題があった。 （１）一般的に多心の光ファイバコードや電気コード等
は楕円形や長方形といった横長の断面形状を有する。従
って、これらを固定するために従来と同様の断面真円の
止め具を使用しようとすると、止め具の径が非常に大き
くなってしまう。 （２）前記（１）の問題を解決するために、止め具の断
面形状をコードのそれに応じた横長にした場合、形状の
不均一性のために全体を均等な力で加圧する（かしめ
る）ことが困難となる。具体的には図８に示すように、
横長の止め具Ｆを真円の止め具をかしめるために使用し
ている従来のかしめ治具Ｇでかしめると、止め具Ｆが局
部的に変形し、その内側のコネクタハウジング（図示し
ない）が破損する虞がある。 （３）前記（２）の課題を解決するために、コネクタハ
ウジングを高強度な金属製のものとすると、同ハウジン
グの生産コストが高騰する。また、図９に示すように、
かしめ治具Ｇの内空間の幅方向両外側にクリアランス
（逃げ）Ｈを設けて止め具Ｆの局部的変形を回避するこ
とも考えられるが、この場合、圧縮力も幅方向外側に逃
げてしまうため、かしめ力が不足し、十分な固定強度が
得られない。The conventional structure for fixing an optical connector and an optical fiber cable has no particular problem when a cord having a perfect circular cross section, such as a single-core optical fiber cord, is fixed. However, in the case of a multi-core code, there are the following problems. (1) Generally, multi-core optical fiber cords, electric cords, and the like have a horizontally long cross-sectional shape such as an elliptical shape or a rectangular shape. Therefore, if it is attempted to use a stopper having a perfect circular cross section as in the prior art to fix them, the diameter of the stopper becomes extremely large. (2) In order to solve the problem (1), when the cross-sectional shape of the stopper is made to be horizontally long according to the cord, the whole is pressed with an even force due to the non-uniform shape (caulking). ) It will be difficult. Specifically, as shown in FIG.
When the horizontally long stopper F is swaged by the conventional swaging jig G used to swage a perfect circular stop, the stop F is locally deformed and a connector housing (not shown) inside the stopper F is deformed. May be damaged. (3) If the connector housing is made of a high-strength metal in order to solve the problem (2), the production cost of the housing will increase. Also, as shown in FIG.
It is conceivable to provide clearances (escape) H on both outer sides in the width direction of the inner space of the caulking jig G to avoid local deformation of the stopper F. However, in this case, the compression force also escapes to the outside in the width direction. Insufficient caulking force and insufficient fixing strength.
【０００４】[0004]
【課題を解決するための手段】本発明の目的は、コード
の断面形状に対応した横長の断面形状を有する止め具を
使用しても、当該止め具が局部的に変形したり、かしめ
力が不足して固定強度が低下したりすることのないコネ
クタとコードの固定方法及び固定構造を提供することに
ある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a fastener having a laterally long cross-sectional shape corresponding to the cross-sectional shape of a cord. It is an object of the present invention to provide a method and structure for fixing a connector and a cord, which do not cause insufficient fixing strength.
【０００５】本件出願の第１のコネクタとコードの固定
方法は、コードの外被を剥離し、その内側の心線をコネ
クタ内に挿通し、剥離した外被を同コネクタの心線差込
み側端部の外側に被せ、その外被にリング状の止め具を
被せ、この止め具をかしめ治具により加圧変形させ、加
圧変形によって形成された止め具の圧着部により前記外
被を心線差込み側端部に圧着固定すると共に、加圧変形
によって生じた止め具の余剰部を加圧方向と反対方向に
膨出させるものである。[0005] The first method of fixing the connector and the cord of the present application is to peel the sheath of the cord, insert the core wire inside the connector into the connector, and insert the peeled sheath into the end of the connector into which the cord is inserted. The outer cover is covered with a ring-shaped stopper, and the stopper is pressed and deformed by a caulking jig. In addition to press-fitting and fixing to the insertion-side end, an excess portion of the stopper caused by the pressurization deformation is bulged in a direction opposite to the pressurization direction.
【０００６】本件出願の第２のコネクタとコードの固定
方法は、かしめ治具として止め具に圧着部を形成可能な
加圧部と、加圧部による加圧によって止め具が加圧方向
側方に広がることを規制する規制部と、加圧部による加
圧と規制部による規制によって加圧方向と反対方向に膨
出する止め具の余剰部を収受可能な逃げ部を備えたもの
を使用するものである。[0006] The second connector and cord fixing method of the present application are as follows: a pressing portion capable of forming a crimping portion on a stopper as a caulking jig; Use a part that has a regulating part that regulates the spread of the part, and a relief part that can receive the surplus part of the stopper that bulges in the opposite direction to the pressing direction due to the pressure by the pressing part and the regulation by the restricting part. Things.
【０００７】本件出願の第１のコネクタとコードの固定
構造は、外被が剥離されたコードの心線がコネクタ内に
挿通され、同コネクタの心線差込み側端部の外側に剥離
された外被が被せられ、この外被がその外側に被せて加
圧変形されたリング状の止め具の圧着部によって心線差
込み側端部に圧着固定され、止め具の一部に前記加圧に
よって加圧方向と反対方向に膨出変形した余剰部が存在
するものである。[0007] The first connector and cord fixing structure of the present application is such that the core of the cord with the sheath stripped is inserted into the connector, and the core is stripped to the outside of the end of the connector into which the core is inserted. The outer cover is placed over the outer cover, and the outer cover is pressed and deformed by the press-fit portion of the ring-shaped stopper which is pressed and deformed. There is a surplus portion bulging and deforming in the direction opposite to the pressure direction.
【０００８】本件出願の第２のコネクタとコードの固定
構造は、止め具に２以上の余剰部が存在するものであ
る。In the second connector and cord fixing structure of the present application, the stopper has two or more surplus portions.
【０００９】本件出願の第３のコネクタとコードの固定
構造は、請求項３又は請求項４記載のコネクタとコード
の固定構造において、心線差込み側端部の外側に被せら
れた外被は、止め具の対向する圧着部に挟まれて心線差
込み側端部に圧着固定され、止め具のうち前記圧着部の
外側と内側の双方又は一方に余剰部が存在するものであ
る。The third connector and cord fixing structure according to the present application is the connector and cord fixing structure according to claim 3 or 4, wherein the outer covering of the outer end of the cord insertion side is: The stopper is sandwiched between the opposing crimping portions and is crimped and fixed to the end portion on the side where the cord is inserted, and among the stoppers, an extra portion exists outside and / or inside the crimping portion.
【００１０】[0010]
【発明の実施の形態】（実施形態１）以下、本発明のコ
ネクタとコードの固定構造の実施形態の一例を説明す
る。本実施形態に示すコネクタとコードの固定構造は、
光コネクタと光ファイバコードを固定するための構造で
あろ。前記光ファイバコードは図２に示すように、複数
の光ファイバを一括被覆してなる心線３の周囲に図示さ
れていないケブラー等の抗張力体が配置され、その周囲
がポリ塩化ビニル等のポリマー材料からなる外被２で被
覆された多心の光ファイバコード１である。前記光コネ
クタは図１に示すように、前記コード１の先端に取り付
けられたフェルール３０と、同フェルール３０を収容す
るコネクタハウジング３２から構成され、さらに、この
コネクタハウジング３２はＰＢＴ（ポリブチレンテレフ
タレート）、ＰＰＳ（ポリフェニレンサルファイド）、
ＰＣ（ポリカーボネイト）といったプラスチック材料又
はこれらにアルミや黄銅といった金属を混合した複合材
料からなるハウジング前方部材３４、ハウジング中間部
材３６、ハウジング後方部材３８の３つの部材から構成
されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) Hereinafter, an example of an embodiment of a connector and cord fixing structure of the present invention will be described. The connector and cord fixing structure shown in the present embodiment is:
A structure for fixing an optical connector and an optical fiber cord. As shown in FIG. 2, in the optical fiber cord, a tensile member such as Kevlar (not shown) is disposed around a core wire 3 formed by covering a plurality of optical fibers at a time, and the periphery thereof is a polymer such as polyvinyl chloride. This is a multi-core optical fiber cord 1 covered with a jacket 2 made of a material. As shown in FIG. 1, the optical connector includes a ferrule 30 attached to the tip of the cord 1 and a connector housing 32 that accommodates the ferrule 30, and the connector housing 32 is made of PBT (polybutylene terephthalate). , PPS (polyphenylene sulfide),
The housing comprises a housing front member 34, a housing intermediate member 36, and a housing rear member 38 made of a plastic material such as PC (polycarbonate) or a composite material obtained by mixing these materials with a metal such as aluminum or brass.
【００１１】本実施形態に示すコネクタとコードの固定
構造では、図１（ａ）に示すように、コネクタ４（ハウ
ジング後方部材３８）の心線差込み側端部５に被せた光
ファイバコード１の外被２に、予め光ファイバコード１
に挿通させておいたリング状の止め具６を引き寄せて被
せ、その止め具６を図１（ｂ）に示す形状に加圧変形さ
せることによって、光ファイバコード１の外被２をハウ
ジング後方部材３８の心線差込み側端部５に圧着固定し
て、光ファイバコード１と光コネクタ４を固定してい
る。In the connector and cord fixing structure according to the present embodiment, as shown in FIG. 1A, the optical fiber cord 1 is placed on the end 5 of the connector 4 (housing rear member 38) on which the cord is inserted. Optical fiber cord 1
The cover 2 of the optical fiber cord 1 is formed by pulling and covering the ring-shaped stopper 6 that has been inserted through the cover member, and deforming the stopper 6 into a shape shown in FIG. The optical fiber cord 1 and the optical connector 4 are fixed by crimping and fixing to the end 5 on the insertion side of the core wire 38.
【００１２】具体的には、図２（ａ）に示すように、前
記光ファイバコード１の外被２の外側に被せたリング状
の止め具６を図示されていないかしめ治具でかしめて、
当該止め具６の対向する長辺部４０の長手方向中央寄り
をそれぞれ対向方向内側に向けて（図中の矢印ａ方向に
向けて）加圧することによって、当該止め具６に図２
（ｂ）に示すようなコード１の幅よりも若干幅の狭い２
つの平坦な圧着部８をコード１の高さ方向に対向させて
形成し、夫々の圧着部８によってコネクタハウジング後
方部材３８の心線差込み側端部５に被せられた光ファイ
バコード１の外被２を同心線差込み側端部５に圧着固定
している。さらに、前記図２（ａ）に示す長辺部４０を
図中の矢印ａ方向に加圧する際に、同止め具６の対向す
る２つの短辺部４２が加圧方向側方（図中の矢印ｂ方
向）へ広がることを規制することによって、長辺部４０
に加えられた圧力が矢印ｂ方向へ逃げることを防止し、
前記圧着部８の形成及び形成された圧着部８による外被
２の圧着固定が確実、且つ強固なものになるようにして
ある。この結果、図２（ａ）に示す長辺部４０の長手方
向両外側部４４は図中の矢印ａ方向とは反対方向に膨出
するように変形し、夫々の圧着部８の幅方向両外側にコ
ード１と非接触な余剰部９（図２ｂ）が形成される。More specifically, as shown in FIG. 2A, a ring-shaped stopper 6 covering the outside of the jacket 2 of the optical fiber cord 1 is caulked with a caulking jig (not shown).
By pressing each of the opposed long sides 40 of the stopper 6 toward the center in the longitudinal direction inward in the facing direction (toward the direction of the arrow a in the figure), the stopper 6 is applied to the stopper 6 in FIG.
2 which is slightly narrower than the width of the code 1 as shown in FIG.
The two flat crimping portions 8 are formed so as to face each other in the height direction of the cord 1, and the sheath of the optical fiber cord 1 covered by the respective crimping portions 8 on the end portion 5 of the connector housing rear member 38 on which the cord is inserted. 2 is crimped and fixed to the concentric insertion side end 5. Further, when the long side portion 40 shown in FIG. 2A is pressed in the direction of the arrow a in the figure, the two opposite short side portions 42 of the same stopper 6 are laterally located in the pressing direction (in the drawing). By restricting the spread in the direction of the arrow b), the long side 40
To prevent the pressure applied to
The formation of the crimping portion 8 and the press-fitting and fixing of the jacket 2 by the formed crimping portion 8 are ensured and firm. As a result, the outer sides 44 in the longitudinal direction of the long side portion 40 shown in FIG. 2A are deformed so as to bulge in the direction opposite to the direction of the arrow a in the figure, and both the crimp portions 8 in the width direction are deformed. A surplus portion 9 (FIG. 2b) that is not in contact with the cord 1 is formed outside.
【００１３】図２（ａ）に示す止め具６を同図（ｂ）に
示すようにかしめて、本発明のコネクタとコードの固定
構造を実現するかしめ治具として例えば図３に示すよう
なかしめ治具７が考えられる。このかしめ治具７は同図
に示すように、止め具６の長辺部４０の長手方向中央寄
りを対向する他方の長辺部４０側に（図２ａの矢印ａ方
向に）加圧して、当該止め具（６）に図２（ｂ）に示す
ような圧着部８を形成可能な凸状の加圧部１０と、加圧
部１０による加圧によって止め具６の短辺部４２が加圧
方向側方（図２ａの矢印ｂ方向）へ広がることを規制す
る規制部１１と、加圧部１０による加圧と規制部１１に
よる規制とによって、加圧部１０による加圧方向と反対
方向へ膨出する前記長辺部４０の長手方向両外側部４４
を収受し、当該止め具（６）に図２（ｂ）に示すような
余剰部９を形成可能な逃げ部１２とを備えた一組のかし
めダイス５０から構成され、図３に示すように対向させ
た一組のかしめダイス５０の間にコネクタ４（ハウジン
グ後方部材３８）の心線差込み側端部５に被せられた光
ファイバコード１の外被２に被せた止め具６を配置し、
同止め具６を上下からかしめることによって、同止め具
６を図２（ｂ）に示すように加圧変形させることができ
るようにしたものである。尚、図３に示す止め具６の短
辺部４２と規制部１１との間のクリアランスは０〜０．
２mm程度が望ましい。クリアランスを前記程度とする
と、かしめ治具７の加圧部１０と止め具６の長辺部４０
との接触位置が常に所定の位置に定まり、さらに加圧部
１０による加圧によって短辺部４２が加圧方向側方へ広
がることもない。また、図３に示すかしめ治具７を使用
して止め具６をかしめた場合、かしめ前に０．２〜０．
４mmであった止め具６の肉厚、および０．６〜１．０mm
であった光ファイバコード１の外被２の肉厚は夫々６０
〜８０％の厚みに圧縮される。2B, the stopper 6 shown in FIG. 2A is swaged as shown in FIG. 2B, and a swaging jig as shown in FIG. 3 is realized as a swaging jig for realizing the connector and cord fixing structure of the present invention. A jig 7 is conceivable. As shown in the drawing, the caulking jig 7 presses the long side portion 40 of the stopper 6 toward the other long side portion 40 facing the center in the longitudinal direction (in the direction of the arrow a in FIG. 2A). As shown in FIG. 2B, a convex pressing portion 10 capable of forming a crimping portion 8 as shown in FIG. 2B and a short side portion 42 of the stopping member 6 are pressed by the pressing portion 10. A regulating portion 11 for regulating the spread in the pressure direction side (the direction of the arrow b in FIG. 2A), and a direction opposite to the pressing direction by the pressing portion 10 by the pressing by the pressing portion 10 and the regulation by the regulating portion 11. The outer sides 44 in the longitudinal direction of the long sides 40 bulging to
2 and a pair of caulking dies 50 including a relief portion 12 capable of forming a surplus portion 9 as shown in FIG. 2B in the stopper (6), as shown in FIG. A set of stoppers 6 placed on the jacket 2 of the optical fiber cord 1 placed on the core insertion side end 5 of the connector 4 (housing rear member 38) is arranged between a pair of facing caulking dies 50,
By crimping the stopper 6 from above and below, the stopper 6 can be deformed under pressure as shown in FIG. 2B. In addition, the clearance between the short side portion 42 of the stopper 6 shown in FIG.
About 2 mm is desirable. When the clearance is set to the above-described level, the pressing portion 10 of the caulking jig 7 and the long side portion 40 of the stopper 6 are provided.
The contact position is always fixed at a predetermined position, and the short side portion 42 does not spread laterally in the pressing direction due to the pressing by the pressing portion 10. When the stopper 6 is caulked using the caulking jig 7 shown in FIG.
The thickness of the stopper 6 which was 4 mm, and 0.6 to 1.0 mm
The thickness of the jacket 2 of the optical fiber cord 1 was 60
Compressed to ~ 80% thickness.
【００１４】図４に示すように、前記ハウジング後方部
材３８の心線差込み側端部５の外周面に突子２０を突設
し、前記のようにして止め具６をかしめると、当該心線
差込み側端部５に被せられた光ファイバコード１の外被
２に突子２０が食い込んで、コネクタ４とコード１の固
定がさらに強固になるようにすることもできる。As shown in FIG. 4, a projection 20 is provided on the outer peripheral surface of the end portion 5 of the housing rear member 38 on the side where the cord is inserted, and the stopper 6 is swaged as described above. The protrusion 20 may bite into the jacket 2 of the optical fiber cord 1 covered on the wire insertion side end 5, so that the connector 4 and the cord 1 can be further firmly fixed.
【００１５】止め具６の断面形状は図示したような略長
方形に限られるものではなく、円形、楕円形、正方形、
多角形その他の任意の形状を選択することができる。ま
た、本発明の固定構造によってコネクタに固定可能なコ
ードは心線が外被によって被覆されたものであれば前記
構造のものに限定されるものではなく、光ファイバコー
ドに限定されるものでもない。また、本発明の固定構造
によってコードに固定可能なコネクタの構造も前記した
ものに限定されない。The cross-sectional shape of the stopper 6 is not limited to a substantially rectangular shape as shown, but may be circular, elliptical, square,
Polygons and other arbitrary shapes can be selected. Further, the cord that can be fixed to the connector by the fixing structure of the present invention is not limited to the above-described structure, and is not limited to the optical fiber cord, as long as the cord is covered with the jacket. . Further, the structure of the connector that can be fixed to the cord by the fixing structure of the present invention is not limited to the above.
【００１６】（実施形態２）本発明のコネクタとコード
の固定方法の実施形態の一例を図５、図６に基づいて説
明する。この実施形態に示す本発明の固定方法は前記本
発明の固定構造を実現するためのものである。 （１）図５（ａ）に示すように、光ファイバコード１の
一端をブーツ６０、止め具６、ハウジング後方部材３
８、ハウジング中間部材３６の順でこれらに通し、当該
光ファイバコード１の上にブーツ６０、止め具６、ハウ
ジング後方部材３８、ハウジング中間部材３６を前記の
順序で配置する。 （２）ハウジング中間部材３６より先方に突出した光フ
ァイバコード１の先端側の外被（シース）２を除去して
心線３を外部に露出させる。 （３）ハウジング中間部材３６より先方に突出した心線
３の外周にスプリング６１を巻装し、同心線３の先端に
フェルール３０を取り付け、取り付けられたフェルール
３０をハウジング前方部材３４の内側に挿入する。この
とき、前記フェルール４０はその先端面がハウジング前
方部材３４の先端から所定長だけ外側に突出する位置ま
でハウジング前方部材３４内に挿入する。また、フェル
ール３０の先端面は研磨その他の必要な端面処理が施さ
れている。尚、前記スプリング６１はフェルール３０を
ハウジング前方部材３４側に押圧して光結合を確実なも
のとする役割を果たすものである。 （４）ハウジング中間部材３６をハウジング前方部材３
４側に引き寄せて、同中間部材３６の先端に突設された
係止突起６３を同前方部材３４の内面に設けられた係止
部（図示しない）に係止させ、図５（ｂ）に示すように
ハウジング前方部材３４とハウジング中間部材３６を結
合させる。 （５）ハウジング後方部材３８をハウジング中間部材３
６側に引き寄せて、図６（ａ）に示すように、ハウジン
グ中間部材３６の後端にハウジング後方部材３８を被せ
て両者を結合する。このとき、図５（ｂ）に示すように
光ファイバケーブル１の外被２の先端から突出している
抗張力体６５をハウジング中間部材３６の後端外周面と
ハウジング後方部材３８の先端内周面との間に挟み込む
ようにして両者を結合させる。 （６）図６（ａ）に示すように、光ファイバコード１の
外被２をハウジング後方部材３８の心線差込み側端部５
の外側に被せ、次に、図６（ｂ）に示すように、ハウジ
ング後方部材３８の心線差込み側端部５に被せられた外
被２の上に止め具６を引き寄せて被せる。尚、このとき
図１（ａ）に示すように、外被２に切り込み７０を入れ
ると、前記心線差込み側端部５の外側に被せ易い。 （７）外被２の上に被せられた止め具６を前記図３に示
すかしめ治具７でかしめて図２（ｂ）に示すように加圧
変形させ、加圧変形によって形成された止め具６の圧着
部８によって外被２を心線差込み側端部５に圧着固定す
る。 （８）図６（ｂ）に示すようにブーツ６０をかしめられ
た止め具６側に引き寄せてその上に被せる。(Embodiment 2) An embodiment of a method for fixing a connector and a cord according to the present invention will be described with reference to FIGS. The fixing method of the present invention shown in this embodiment is for realizing the fixing structure of the present invention. (1) As shown in FIG. 5A, one end of the optical fiber cord 1 is connected to a boot 60, a stopper 6, and a housing rear member 3.
8, pass through them in the order of the housing intermediate member 36, and arrange the boot 60, the stopper 6, the housing rear member 38, and the housing intermediate member 36 on the optical fiber cord 1 in the order described above. (2) The sheath (sheath) 2 on the distal end side of the optical fiber cord 1 protruding forward from the housing intermediate member 36 is removed to expose the core wire 3 to the outside. (3) A spring 61 is wound around the outer periphery of the core wire 3 protruding forward from the housing intermediate member 36, the ferrule 30 is attached to the end of the concentric wire 3, and the attached ferrule 30 is inserted inside the housing front member 34. I do. At this time, the ferrule 40 is inserted into the housing front member 34 to a position where the front end surface projects outward by a predetermined length from the front end of the housing front member 34. The tip surface of the ferrule 30 is polished or other necessary end surface treatment. The spring 61 plays a role in pressing the ferrule 30 toward the housing front member 34 to secure optical coupling. (4) Connect the housing intermediate member 36 to the housing front member 3
4, the locking projection 63 protruding from the tip of the intermediate member 36 is locked to a locking portion (not shown) provided on the inner surface of the front member 34, as shown in FIG. The housing front member 34 and the housing intermediate member 36 are connected as shown. (5) Replace the housing rear member 38 with the housing intermediate member 3
6A, the housing rear member 38 is put on the rear end of the housing intermediate member 36 to join them together as shown in FIG. 6A. At this time, as shown in FIG. 5B, the strength members 65 protruding from the front end of the jacket 2 of the optical fiber cable 1 are connected to the rear end outer peripheral surface of the housing intermediate member 36 and the front end inner peripheral surface of the housing rear member 38. The two are joined so as to be sandwiched between them. (6) As shown in FIG. 6 (a), the jacket 2 of the optical fiber cord 1 is connected to the end portion 5 of the housing rear member 38 on which the cord is inserted.
Then, as shown in FIG. 6 (b), the stopper 6 is drawn over the outer jacket 2 placed on the core-inserted end 5 of the housing rear member 38. At this time, as shown in FIG. 1A, if a cut 70 is made in the jacket 2, it is easy to cover the outside of the core wire insertion side end portion 5. (7) The stopper 6 put on the outer cover 2 is caulked by the caulking jig 7 shown in FIG. 3 and deformed under pressure as shown in FIG. The jacket 2 is crimped and fixed to the end 5 on the side where the cord is inserted by the crimping portion 8 of the tool 6. (8) As shown in FIG. 6 (b), the boot 60 is pulled toward the crimped stopper 6 side and put on it.
【００１７】前記（１）〜（８）の各段階の順序は必ず
しも前記順序に限定されるものではなく、最終的にコー
ドの外被に被せた止め具を図２（ｂ）に示すように圧縮
変形させて、その内側の外被を止め具の圧着部によって
コネクタの心線差込み側端部に圧着固定可能であれば順
序を入れ替えたり、一部の段階を省略したり、他の段階
を加えたりすることもできる。The order of each of the steps (1) to (8) is not necessarily limited to the above order, and the stopper finally put on the jacket of the cord as shown in FIG. 2 (b) If it can be compressed and deformed and the inner jacket can be crimped and fixed to the connector's core insertion side end by the crimping part of the stopper, the order may be changed, some steps may be omitted, and other steps may be omitted. You can also add.
【００１８】[0018]
【発明の効果】本件出願のコネクタとコードの固定方法
及び固定方法は次のような効果を有する。 （１）加圧変形によって生じた止め具の余剰部を逃がす
ので、止め具が局部的に変形することがなく、止め具の
圧着部が面で外被を加圧するので、断面横長の止め具を
使用してもその内側のコネクタが破損する虞がない。 （２）余剰部を加圧方向と反対方向に膨出させるので、
止め具に加えられた圧力が加圧方向側方（コードの幅方
向外側）に逃げることがなく、コネクタとコードの固定
が確実且つ強固なものとなる。 （３）前記の通り、断面横長の止め具を使用した場合に
発生する従来の問題点が解決されるので、多心のコード
とコネクタの固定に特に有用である。The connector and cord fixing method and the fixing method of the present application have the following effects. (1) An extra portion of the stopper caused by the pressurization deformation is released, so that the stopper is not locally deformed, and the crimping portion of the stopper presses the jacket with the surface, so that the stopper has a horizontally long cross section. There is no danger that the connector inside will be damaged. (2) Since the surplus portion swells in the direction opposite to the pressing direction,
The pressure applied to the stopper does not escape to the side in the pressing direction (outside in the width direction of the cord), so that the connector and the cord are securely and firmly fixed. (3) As described above, the conventional problem that occurs when using a fastener having a horizontally long cross section is solved, and thus it is particularly useful for fixing a multi-core cord and a connector.
【図１】（ａ）はコネクタの心線差込み側端部に外被が
被せられた状態を示す説明図、（ｂ）は前記外被に被せ
て圧縮変形させた止め具を示す説明図。FIG. 1A is an explanatory view showing a state in which a jacket is placed on an end of a connector into which a core wire is inserted, and FIG. 1B is an explanatory view showing a stopper that is compressed and deformed on the jacket.
【図２】（ａ）は圧縮変形される前の止め具を示す断面
図、（ｂ）は圧縮変形された止め具を示す断面図。FIG. 2A is a cross-sectional view illustrating a stopper before being compressed and deformed, and FIG. 2B is a cross-sectional view illustrating the stopper that is compressed and deformed.
【図３】本発明のコネクタとコードの固定方法に使用さ
れるかしめ治具の一例を示す断面図。FIG. 3 is a cross-sectional view showing an example of a caulking jig used in the method for fixing a connector and a cord according to the present invention.
【図４】外周面に突子が突設されたハウジング後方部材
の心線差込み側端部を示す説明図。FIG. 4 is an explanatory view showing a core-insertion-side end of a housing rear member having a protrusion protruding from an outer peripheral surface.
【図５】（ａ）は本発明のコネクタとコードの固定方法
の一段階を示す説明図、（ｂ）は（ａ）の後の段階を示
す説明図。FIG. 5A is an explanatory view showing one stage of a method of fixing a connector and a cord according to the present invention, and FIG. 5B is an explanatory view showing a stage after (a).
【図６】本発明のコネクタとコードの固定方法の一段階
を示す説明図であって、（ａ）は図５（ｂ）の後の段階
を示す説明図、（ｂ）は（ａ）の後の段階を示す説明
図。FIGS. 6A and 6B are explanatory diagrams showing one stage of the method of fixing the connector and the cord according to the present invention, wherein FIG. 6A is an explanatory diagram showing the stage after FIG. 5B, and FIG. Explanatory drawing which shows a latter stage.
【図７】従来のコネクタとコードの固定構造を示す断面
図であって、（ａ）は縦断面図、（ｂ）は横断面図。7A and 7B are cross-sectional views showing a conventional connector and cord fixing structure, in which FIG. 7A is a vertical cross-sectional view, and FIG.
【図８】断面横長の止め具を従来のかしめ治具でかしめ
た状態を示す断面図。FIG. 8 is a cross-sectional view showing a state in which a stopper having a horizontally long cross section is caulked with a conventional caulking jig.
【図９】断面横長の止め具をその幅方向外側に逃げを設
けたかしめ治具でかしめた状態を示す断面図。FIG. 9 is a cross-sectional view illustrating a state in which a stopper having a horizontally long cross section is provided with a relief on the outer side in the width direction and is caulked by a caulking jig.
１ コード ２ 外被 ３ 心線 ４ コネクタ ５ 心線差込み側端部 ６ 止め具 ７ かしめ治具 ８ 圧着部 ９ 余剰部 １０ 加圧部 １１ 規制部 １２ 逃げ部 DESCRIPTION OF SYMBOLS 1 Cord 2 sheath 3 core wire 4 connector 5 core wire insertion side end 6 stopper 7 caulking jig 8 crimping part 9 surplus part 10 pressurizing part 11 regulating part 12 escape part
Claims (5)
内側の心線（３）をコネクタ（４）内に挿通し、剥離し
た外被（２）を同コネクタ（４）の心線差込み側端部
（５）の外側に被せ、その外被（２）にリング状の止め
具（６）被せ、この止め具（６）をかしめ治具（７）に
より加圧変形させ、加圧変形によって形成された止め具
（６）の圧着部（８）により前記外被（２）を心線差込
み側端部（５）に圧着固定すると共に、加圧変形によっ
て生じた止め具（６）の余剰部（９）を加圧方向と反対
方向に膨出させることを特徴とするコネクタとコードの
固定方法。1. A sheath (2) of a cord (1) is peeled off, an inner core wire (3) is inserted into a connector (4), and the peeled jacket (2) is connected to the connector (4). And a ring-shaped stopper (6) is placed on the outer cover (2), and the stopper (6) is pressed and deformed by a caulking jig (7). The jacket (2) is crimped and fixed to the end (5) of the cord insertion side by the crimping portion (8) of the stopper (6) formed by the press deformation, and the stopper produced by the press deformation. A method of fixing a connector and a cord, wherein the surplus portion (9) of (6) is bulged in a direction opposite to the pressing direction.
法において、かしめ治具（７）として、止め具（６）に
圧着部（８）を形成可能な加圧部（１０）と、加圧部
（１０）による加圧によって止め具（６）が加圧方向側
方に広がることを規制する規制部（１１）と、加圧部
（１０）による加圧と規制部（１１）による規制によっ
て加圧方向と反対方向に膨出する止め具（６）の余剰部
（９）を収受可能な逃げ部（１２）を備えたものを使用
することを特徴とするコネクタとコードの固定方法。2. A method for fixing a connector and a cord according to claim 1, wherein a pressing portion (10) capable of forming a crimping portion (8) on a stopper (6) is provided as a caulking jig (7). A restricting portion (11) for restricting the stopper (6) from spreading laterally in the pressing direction by pressing by the pressing portion (10), and pressing by the pressing portion (10) and restricting by the restricting portion (11). A method of fixing a connector and a cord, characterized by using a stopper (6) having an escape portion (12) capable of receiving an excess portion (9) of a stopper (6) bulging in a direction opposite to a pressing direction.
線（３）がコネクタ（４）内に挿通され、同コネクタ
（４）の心線差込み側端部（５）の外側に剥離された外
被（２）が被せられ、この外被（２）がその外側に被せ
て加圧変形されたリング状の止め具（６）の圧着部
（８）によって心線差込み側端部（５）に圧着固定さ
れ、止め具（６）の一部に前記加圧によって加圧方向と
反対方向に膨出変形した余剰部（９）が存在することを
特徴とするコネクタとコードの固定構造。3. The cord (1) of the cord (1) from which the jacket (2) has been peeled is inserted into the connector (4), and the end (5) of the cord insertion side of the connector (4) is inserted. The outer sheath (2) which is peeled outside is covered, and the outer sheath (2) is covered with the outside and the core portion is inserted by the crimping portion (8) of the ring-shaped stopper (6) deformed under pressure. A connector and cord characterized in that there is a surplus part (9) crimped and fixed to the end part (5) and bulging and deforming in a direction opposite to the pressing direction due to the pressing in a part of the stopper (6). Fixed structure.
造であって、止め具（６）に２以上の余剰部（９）が存
在することを特徴とするコネクタとコードの固定構造。4. The connector and cord fixing structure according to claim 3, wherein the stopper (6) has two or more surplus portions (9).
ードの固定構造において、心線差込み側端部（５）の外
側に被せられた外被（２）は、止め具（６）の対向する
圧着部（８）に挟まれて心線差込み側端部（５）に圧着
固定され、止め具（６）のうち前記圧着部（８）の外側
と内側の双方又は一方に余剰部（９）が存在することを
特徴とするコネクタとコードの固定構造。5. A fixing structure for a connector and a cord according to claim 3, wherein the jacket (2) covered on the outer side of the end portion (5) of the cord insertion side is provided with a stopper (6). It is sandwiched between the opposing crimping portions (8) and is crimped and fixed to the end portion (5) on which the cord is inserted, and a surplus portion ( 9) A structure for fixing a connector and a cord, wherein 9) is present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000216466A JP4413390B2 (en) | 2000-07-17 | 2000-07-17 | Connector and cord fixing method and fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000216466A JP4413390B2 (en) | 2000-07-17 | 2000-07-17 | Connector and cord fixing method and fixing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002031741A true JP2002031741A (en) | 2002-01-31 |
| JP4413390B2 JP4413390B2 (en) | 2010-02-10 |
Family
ID=18711728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000216466A Expired - Lifetime JP4413390B2 (en) | 2000-07-17 | 2000-07-17 | Connector and cord fixing method and fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4413390B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007322646A (en) * | 2006-05-31 | 2007-12-13 | Fujikura Ltd | Optical fiber cord with connector |
| JP2010061010A (en) * | 2008-09-05 | 2010-03-18 | Hakusan Mfg Co Ltd | Fixing method of optical connector boot and optical connector |
| JP2010061011A (en) * | 2008-09-05 | 2010-03-18 | Hakusan Mfg Co Ltd | Optical connector boot and optical connector using the same |
| KR101064432B1 (en) * | 2009-08-27 | 2011-09-14 | 주식회사 이스트포토닉스 | fiber connector method using pressure. |
-
2000
- 2000-07-17 JP JP2000216466A patent/JP4413390B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007322646A (en) * | 2006-05-31 | 2007-12-13 | Fujikura Ltd | Optical fiber cord with connector |
| JP4698488B2 (en) * | 2006-05-31 | 2011-06-08 | 株式会社フジクラ | Optical fiber cord with connector |
| JP2010061010A (en) * | 2008-09-05 | 2010-03-18 | Hakusan Mfg Co Ltd | Fixing method of optical connector boot and optical connector |
| JP2010061011A (en) * | 2008-09-05 | 2010-03-18 | Hakusan Mfg Co Ltd | Optical connector boot and optical connector using the same |
| KR101064432B1 (en) * | 2009-08-27 | 2011-09-14 | 주식회사 이스트포토닉스 | fiber connector method using pressure. |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4413390B2 (en) | 2010-02-10 |
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