JP2007328290A - Optical fiber cord traction device - Google Patents

Optical fiber cord traction device Download PDF

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Publication number
JP2007328290A
JP2007328290A JP2006161376A JP2006161376A JP2007328290A JP 2007328290 A JP2007328290 A JP 2007328290A JP 2006161376 A JP2006161376 A JP 2006161376A JP 2006161376 A JP2006161376 A JP 2006161376A JP 2007328290 A JP2007328290 A JP 2007328290A
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main body
optical connector
optical fiber
fiber cord
jig
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JP4764262B2 (en
Inventor
Eiji Imamura
栄司 今村
Fumiya Isaka
文哉 井坂
Hitoshi Son
均 孫
Yoshiteru Abe
宜輝 阿部
Koji Bando
浩二 板東
Toshio Kurashima
利雄 倉嶋
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NTT Advanced Technology Corp
Nippon Telegraph and Telephone Corp
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NTT Advanced Technology Corp
Nippon Telegraph and Telephone Corp
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  • Light Guides In General And Applications Therefor (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional traction device for drawing an optical fiber cord having an optical connector attached at the tip end, wherein the device has a long linear inflexible part along the drawing direction in a state of the optical connector being connected and also has a large contour shape in a plane orthogonal to the drawing direction, which leads to a strong possibility of being caught in a winding conduit. <P>SOLUTION: The traction device 10 for drawing an optical fiber cord 11 with an optical connector 12 attached at the tip end is provided at one end with an opening 17 for inserting/extracting the optical connector 1. The device is also equipped with: a cylindrical device body 18 for housing the optical connector 12; an engaging part 19 for integrally connecting the optical connector 12 by engaging a projection 13 projectingly provided therein; an attaching/detaching means 20 for attaching/detaching the projection 13 of the optical connector 12 to/from this engaging part 19; and a connecting fixture 21 mounted on the device body 18 for the purpose of connecting a traction cord. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、先端に光コネクタが取り付けられた光ファイバコードを牽引索を用いて管路内に配設するための光ファイバコード牽引治具に関する。   The present invention relates to an optical fiber cord pulling jig for disposing an optical fiber cord having an optical connector attached to the tip thereof in a pipeline using a pulling rope.

建屋内に埋設された管路内に光ファイバコードを挿通させるような場合、この管路の一端から牽引索を差し込んで管路の他端まで通し、牽引索の先端に牽引治具を介して光ファイバコードを連結した後、管路の一端側から牽引索を引っ張って光ファイバコードを管路の他端から管路内に引き込み、最終的に管路の他端から光ファイバコードを引き出すようにしている。このような光ファイバコードの牽引技術に関しては、非特許文献１に記載されている。この非特許文献１に開示された技術は、先端に光コネクタが取り付けられた光ファイバコードの牽引を対象とするものであり、牽引治具が光コネクタに連結されるようになっている。   When inserting an optical fiber cord into a pipe line embedded in a building, insert a tow rope from one end of this pipe line to the other end of the pipe line, through a tow jig at the tip of the tow line After connecting the optical fiber cord, pull the pulling cable from one end of the pipe to pull the optical fiber cord into the pipe from the other end of the pipe, and finally pull out the optical fiber cord from the other end of the pipe I have to. Such an optical fiber cord pulling technique is described in Non-Patent Document 1. The technique disclosed in Non-Patent Document 1 is intended for pulling an optical fiber cord having an optical connector attached to the tip, and a pulling jig is connected to the optical connector.

２００６年電子情報通信学会総合大会 Ｂ-１３-１０2006 IEICE General Conference B-13-10

非特許文献１に開示された牽引治具は、JIS C 5973にて規定されたＦ０４形単心光ファイバコネクタ（IEC 60874-14，ICE 60874-19に相当）と呼称される、いわゆるＳＣ（Single fiber Coupling）コネクタを把持するために係止片を用いているため、構成部品点数が多い。このため、管路に対して牽引治具が相対的に大きくなってしまい、牽引中に管路の凹凸部分や屈曲部分に牽引治具が引っ掛かってしまい、牽引ができなくなったり、最悪の場合には、光コネクタが損傷を受ける可能性があった。 The traction jig disclosed in Non-Patent Document 1 is a so-called SC ( S ) called F04 type single-core optical fiber connector (corresponding to IEC 60874-14 and ICE 60874-19) defined in JIS C 5973. ingle fiber C oupling) due to the use of locking pieces for gripping the connector, the number of components is large. For this reason, the traction jig becomes relatively large with respect to the pipe line, and the traction jig is caught on the uneven part or the bent part of the pipe line during towing, making it impossible to pull or in the worst case. The optical connector could be damaged.

本発明の目的は、このような不具合が発生しないコンパクトで機構が単純な牽引治具を提供することにある。   An object of the present invention is to provide a compact and simple traction jig in which such a problem does not occur.

本発明による光ファイバコード牽引治具は、先端に光コネクタが取り付けられた光ファイバコードを牽引するための牽引治具であって、光コネクタを抜き差しするための開口部を一端に有し、光コネクタを収容するための筒状をなす本体と、光コネクタに突設された突起部が係止して光コネクタを一体的に連結するための係止部と、この係止部に対して光コネクタの突起部を着脱するための着脱手段と、前記本体に取り付けられて牽引索を接続するための接続手段とを具えたことを特徴とするものである。   An optical fiber cord pulling jig according to the present invention is a pulling jig for pulling an optical fiber cord having an optical connector attached to the tip, and has an opening at one end for inserting and removing the optical connector. A cylindrical main body for housing the connector, a protrusion protruding from the optical connector, and a locking portion for integrally connecting the optical connector; An attachment / detachment means for attaching / detaching the protrusion of the connector and a connection means attached to the main body for connecting a tow rope are provided.

本発明においては、予め管路の両端に跨がって通された牽引索の先端を牽引治具の接続手段に取り付け、牽引治具を牽引索に連結する。さらに、この牽引治具の本体の開口部から光ファイバコードの先端に取り付けられた光コネクタを本体内に差し込み、着脱手段により光コネクタの突起部を係止部に係止させ、牽引治具に対して光コネクタを一体的に連結する。しかる後、光ファイバコードが引き出される管路の一端側から牽引索を引っ張り、管路の他端から牽引治具と共に光ファイバコードの先端を管路内に引き込む。このようにして管路の一端から牽引治具に連結された光ファイバコードの先端側を引き出した後、着脱手段により牽引治具の係止部に対する光コネクタの突起部の係合を解除して光コネクタから牽引治具を抜き外す。これにより、管路内に光ファイバコードが配設された状態となる。   In the present invention, the tip of the tow rope that has been passed over both ends of the pipeline in advance is attached to the connecting means of the towing jig, and the towing jig is connected to the towing rope. Furthermore, the optical connector attached to the tip of the optical fiber cord is inserted into the main body through the opening of the main body of the pulling jig, and the protrusion of the optical connector is locked to the locking portion by the attaching / detaching means. On the other hand, the optical connector is integrally connected. Thereafter, the tow rope is pulled from one end side of the conduit from which the optical fiber cord is drawn, and the tip of the optical fiber cord is pulled into the conduit along with the pulling jig from the other end of the conduit. After pulling out the tip side of the optical fiber cord connected to the pulling jig from one end of the conduit in this way, the engagement of the protrusion of the optical connector with the locking part of the pulling jig is released by the attaching / detaching means. Remove the pulling jig from the optical connector. Thereby, it will be in the state by which the optical fiber cord was arrange | positioned in the pipe line.

本発明による光ファイバコード牽引治具において、係止部は、本体に形成されて光コネクタの突起部が係止する係止穴部を有し、着脱手段は、係止穴部と開口部とに連通するように本体に対する光コネクタの抜き差し方向に沿って本体に形成された案内スリット部と、この案内スリット部の延在方向と交差するように本体に形成されて一端が係止穴部に連通する切欠き部とを有するものであってよく、これにより案内スリット部の幅が拡がるように開口部と切欠き部との間に位置する本体を弾性変形させ、案内スリット部に対する光コネクタの突起部の通過を可能とすることができる。さらに、本体の一端側に位置する案内スリット部の幅を開口部に向けてテーパ状に拡げることが好ましい。   In the optical fiber cord pulling jig according to the present invention, the locking portion has a locking hole formed in the main body and locked by the protrusion of the optical connector, and the attaching / detaching means includes the locking hole and the opening. A guide slit formed in the main body along the insertion / removal direction of the optical connector with respect to the main body so as to communicate with the main body, and an end formed in the main body so as to intersect the extending direction of the guide slit The main body located between the opening and the cutout portion is elastically deformed so that the width of the guide slit portion is widened so that the width of the guide slit portion is expanded. The protrusion can be passed. Furthermore, it is preferable that the width of the guide slit portion positioned on one end side of the main body is increased in a tapered shape toward the opening.

接続手段が本体の他端側に取り付けられ、この本体の他端側が先細り形状となっていることが好ましい。この場合、接続手段が牽引索を取り外し可能に接続するための接続金具を有し、この接続金具は、本体の他端部に取り付けられたピンに対して揺動自在に連結された第１のリンクと、この第１のリンクに対してピンの軸線と直交する軸線回りに回動自在に連結された第２のリンクとを有することができる。   The connecting means is preferably attached to the other end of the main body, and the other end of the main body is preferably tapered. In this case, the connection means has a connection fitting for detachably connecting the tow rope, and the connection fitting is connected to a pin attached to the other end of the main body in a swingable manner. A link and a second link connected to the first link so as to be rotatable about an axis perpendicular to the axis of the pin can be provided.

本体の少なくとも光コネクタを囲む部分を板金にて形成することが好ましい。   It is preferable that at least a portion of the main body surrounding the optical connector is formed of sheet metal.

本発明の光ファイバコード牽引治具によると、光コネクタを抜き差しするための開口部を一端に有し、光コネクタを収容するための筒状をなす本体と、光コネクタに突設された突起部が係止して光コネクタを一体的に連結するための係止部と、この係止部に対して光コネクタの突起部を着脱するための着脱手段と、本体に取り付けられて牽引索を接続するための接続手段とを具えているので、牽引治具と光ファイバコードとを連結した場合、牽引治具の本体内に光コネクタが収容された状態となり、牽引方向に沿って直線状をなす可撓性のない部分の長さを最少に抑えることができる。このため、曲率半径の小さな管路内で光ファイバコードを牽引する場合、従来のものよりもその引っ掛かりを少なくすることができる。しかも、本体の内壁とこの本体に差し込まれる光コネクタとの間に大きな隙間を形成する必要がないので、牽引方向に対して直交する面内での本体の輪郭形状を最少に抑えることができ、従来のものよりも少ない抵抗で容易に光ファイバコードを牽引することが可能である。   According to the optical fiber cord pulling jig of the present invention, there is an opening for inserting / removing the optical connector at one end, a cylindrical main body for accommodating the optical connector, and a protrusion protruding from the optical connector The locking part for locking and connecting the optical connector integrally, the attaching / detaching means for attaching / detaching the protrusion of the optical connector to the locking part, and the pulling cable attached to the main body Therefore, when the traction jig and the optical fiber cord are connected, the optical connector is housed in the main body of the traction jig and forms a straight line along the traction direction. The length of the non-flexible portion can be minimized. For this reason, when pulling an optical fiber cord in a pipe line having a small radius of curvature, the catch can be reduced as compared with the conventional one. Moreover, since it is not necessary to form a large gap between the inner wall of the main body and the optical connector inserted into the main body, the contour shape of the main body in the plane orthogonal to the pulling direction can be minimized, It is possible to easily pull the optical fiber cord with less resistance than the conventional one.

本体に形成されて光コネクタの突起部が係止する係止穴部を係止部が有し、係止穴部と開口部とに連通するように本体に対する光コネクタの抜き差し方向に沿って本体に形成された案内スリット部と、この案内スリット部の延在方向と交差するように本体に形成されて一端が係止穴部に連通する切欠き部とを着脱手段が有する場合、案内スリット部の幅が拡がるように開口部と切欠き部との間に位置する本体を弾性変形させて案内スリット部に対し光コネクタの突起部を通過させることができる。   The locking unit has a locking hole formed in the main body and locked by the protrusion of the optical connector, and the main body along the insertion / removal direction of the optical connector with respect to the main body so as to communicate with the locking hole and the opening. When the attaching / detaching means has a guide slit portion formed on the main body and a notch portion formed at the main body so as to intersect the extending direction of the guide slit portion and having one end communicating with the locking hole portion, the guide slit portion The main body located between the opening and the notch can be elastically deformed so that the width of the optical connector can be expanded, and the protrusion of the optical connector can be passed through the guide slit.

本体の一端側に位置する案内スリット部の幅が開口部に向けてテーパ状に拡がっている場合、開口部から光コネクタを本体内に差し込む際に、光コネクタの突起部によって本体を弾性変形させ、案内スリット部を容易に押し拡げることができる。   When the width of the guide slit located at one end of the main body is tapered toward the opening, the main body is elastically deformed by the protrusion of the optical connector when the optical connector is inserted into the main body from the opening. The guide slit portion can be easily expanded.

接続手段が本体の他端側に取り付けられ、この本体の他端側が先細り形状となっている場合、光ファイバコードの牽引中に管路の内壁に対する本体の他端部の引っ掛かりを少なくすることができる。   When the connecting means is attached to the other end side of the main body and the other end side of the main body is tapered, it is possible to reduce the catch of the other end of the main body with respect to the inner wall of the pipe line during the pulling of the optical fiber cord. it can.

接続手段が牽引索を取り外し可能に接続するための接続金具を有し、接続金具が本体の他端部に取り付けられたピンに対して揺動自在に連結された第１のリンクと、この第１のリンクに対してピンの軸線と直交する軸線回りに回動自在に連結された第２のリンクとを有する場合、牽引索による牽引治具の牽引方向を管路に沿って自由に変えることができる。   A first link in which the connecting means has a connection fitting for detachably connecting the tow rope, and the connection fitting is swingably coupled to a pin attached to the other end of the main body; In the case of having a second link that is connected to one link so as to be rotatable about an axis perpendicular to the axis of the pin, the pulling direction of the pulling jig by the pulling rope can be freely changed along the pipeline. Can do.

本発明による光ファイバコード牽引治具の一実施形態について、図１〜図５を参照しながら詳細に説明するが、本発明はこのような実施形態のみに限らず、特許請求の範囲に記載された本発明の概念に包含されるあらゆる変更や修正が可能であり、従って本発明の精神に帰属する他の任意の技術にも当然応用することができる。   An embodiment of an optical fiber cord pulling jig according to the present invention will be described in detail with reference to FIGS. 1 to 5, but the present invention is not limited to such an embodiment, and is described in the claims. Any change or modification included in the concept of the present invention can be made, and can of course be applied to any other technique belonging to the spirit of the present invention.

本実施形態における光ファイバコード牽引治具（以下、単に牽引治具と略称する）の平面形状を対応する光ファイバコードと共に図１に示し、そのII−II線に沿った牽引治具１０の断面構造を光ファイバコード１１と共に図２に示し、牽引治具１０の外観を図３に示す。   A planar shape of an optical fiber cord pulling jig (hereinafter simply referred to as a pulling jig) in this embodiment is shown in FIG. 1 together with the corresponding optical fiber cord, and a cross section of the pulling jig 10 along the line II-II. The structure is shown in FIG. 2 together with the optical fiber cord 11, and the appearance of the pulling jig 10 is shown in FIG.

光ファイバコード１１の先端に一体的に取り付けられた本実施形態における光コネクタ１２は、JIS C 5973にて規定されたＦ０４形単心光ファイバコネクタ（IEC 60874-14,ICE 60874-19に相当）と呼称されるものであり、いわゆるＳＣコネクタに相当する。この光コネクタ１２は、上面に突起部１３が形成されたほぼ矩形のコネクタ本体１４と、先端部がコネクタ本体１４の先端面から突出するようにコネクタ本体１４に組み込まれたフェルール１５とを具えている。コネクタ本体１４から突出するフェルール１５は、コネクタ本体１４内に組み込まれたばねによるばね力に抗してコネクタ本体１４内に押し戻すことができるようになっている。光ファイバ１６（図５参照）は、このフェルール１５の中央部に挿通され、光ファイバコード１１へと導かれている。図１に示す状態において、光コネクタ１２の抜き差し方向（図１中、左右方向）に沿って細長く形成された突起部１３の先端側は、半円弧状となっている。   The optical connector 12 in this embodiment attached integrally to the tip of the optical fiber cord 11 is an F04 type single-core optical fiber connector defined in JIS C 5973 (equivalent to IEC 60874-14, ICE 60874-19). This corresponds to a so-called SC connector. The optical connector 12 includes a substantially rectangular connector main body 14 having a protrusion 13 formed on the upper surface, and a ferrule 15 incorporated in the connector main body 14 so that the front end protrudes from the front end surface of the connector main body 14. Yes. The ferrule 15 protruding from the connector main body 14 can be pushed back into the connector main body 14 against a spring force by a spring incorporated in the connector main body 14. The optical fiber 16 (see FIG. 5) is inserted through the central portion of the ferrule 15 and led to the optical fiber cord 11. In the state shown in FIG. 1, the tip end side of the protruding portion 13 that is formed elongated along the insertion / removal direction of the optical connector 12 (left-right direction in FIG. 1) has a semicircular arc shape.

なお、光コネクタ１２自体の構造は、上述したような突起部１３がコネクタ本体１４に形成されたものでありさえすれば、如何なる内部構造を有するものであっても基本的に構わない。   The structure of the optical connector 12 itself may be basically any structure as long as the protrusion 13 as described above is formed on the connector main body 14.

本発明においては、このような光コネクタ１２に形成された突起部１３を利用し、牽引治具１０との連結を行うようにしている。すなわち、本実施形態における牽引治具１０は光コネクタ１２を抜き差しするための開口部１７を一端に有し、光コネクタ１２を収容するための矩形の筒状をなす治具本体１８と、光コネクタ１２に突設された突起部１３が係止して光コネクタ１２を一体的に連結するための係止部１９と、この係止部１９に対して光コネクタ１２の突起部１３を着脱するための着脱手段２０と、治具本体１８に取り付けられて図示しない牽引索を接続する本発明の接続手段としての接続金具２１とを具えている。   In the present invention, the projection 13 formed on the optical connector 12 is used for connection with the traction jig 10. That is, the pulling jig 10 in this embodiment has an opening 17 for inserting / removing the optical connector 12 at one end, a jig body 18 having a rectangular tube shape for housing the optical connector 12, and an optical connector. 12 for locking and connecting the optical connector 12 integrally with the protruding portion 13 projecting from the protruding portion 12, and for attaching and detaching the protruding portion 13 of the optical connector 12 to the locking portion 19. And a connecting fitting 21 as connecting means of the present invention which is attached to the jig main body 18 and connects a tow rope (not shown).

本実施形態における治具本体１８は、ステンレス鋼の薄板を矩形のカップ形に深絞りしたものであり、この牽引治具１０と光コネクタ１２とを連結した図４およびそのＶ−Ｖ矢視断面形状を表す図５に示す状態において、牽引治具１０の外寸、つまり抜き差し方向に沿った直線部の長さおよびこれと直交する方向の幅が可能な限り小さくなるように、その内寸は光コネクタ１２の治具本体１８の外寸に対して僅かな遊びのみが形成されるように作られている。治具本体１８の他端側には、中央部を二股状に切り欠いたブラケット２２が一体的に接合されている。このブラケット２２の先端側（図１中、左側）は、図１に示す状態において半円弧状に形成され、本発明において言う先細り形状となっている。このような先細り形状を採用することにより、牽引時に牽引治具１０が管路の内壁に引っ掛かるような不具合を少なくすることが可能である。   The jig main body 18 in the present embodiment is obtained by deep drawing a stainless steel thin plate into a rectangular cup shape, and FIG. 4 and its V-V arrow cross-section of the traction jig 10 and the optical connector 12 connected to each other. In the state shown in FIG. 5 representing the shape, the outer dimension of the traction jig 10, that is, the inner dimension is as small as possible so that the length of the straight portion along the insertion / removal direction and the width in the direction perpendicular thereto are as small as possible. Only slight play is formed with respect to the outer dimension of the jig body 18 of the optical connector 12. On the other end side of the jig body 18, a bracket 22 having a central portion cut out in a bifurcated shape is integrally joined. The front end side (left side in FIG. 1) of the bracket 22 is formed in a semicircular arc shape in the state shown in FIG. 1, and has a tapered shape as referred to in the present invention. By adopting such a tapered shape, it is possible to reduce problems such as the traction jig 10 being caught on the inner wall of the pipe line during traction.

本実施形態における係止部１９は、治具本体１８に形成されて光コネクタ１２の突起部１３が係止する係止穴部２３を有し、この係止穴部２３は突起部１３の輪郭形状に対応した形状を持つ。また、本実施形態における着脱手段２０は、係止穴部２３と開口部１７とに連通するように治具本体１８に対する光コネクタ１２の抜き差し方向に沿って治具本体１８に形成された案内スリット部２４と、この案内スリット部２４の延在方向と交差するように治具本体１８に形成されて一端が係止穴部２３に連通する切欠き部２５とを有する。   The locking portion 19 in the present embodiment has a locking hole portion 23 formed in the jig body 18 and locked by the protruding portion 13 of the optical connector 12, and the locking hole portion 23 is an outline of the protruding portion 13. It has a shape corresponding to the shape. Further, the attaching / detaching means 20 in the present embodiment is a guide slit formed in the jig main body 18 along the insertion / removal direction of the optical connector 12 with respect to the jig main body 18 so as to communicate with the locking hole 23 and the opening 17. And a notch 25 formed at the jig body 18 so as to intersect the extending direction of the guide slit 24 and having one end communicating with the locking hole 23.

従って、案内スリット部２４の幅が拡がるように開口部１７と切欠き部２５との間に位置する治具本体１８を弾性変形させることにより、案内スリット部２４に対する光コネクタ１２の突起部１３の通過を可能としている。本実施形態では、治具本体１８の一端側に位置する案内スリット部２４の幅が開口部１７に向けてテーパ状に拡がっており、開口部１７から光コネクタ１２を治具本体１８内に差し込む際に、光コネクタ１２の突起部１３によって治具本体１８を強制的に弾性変形させ、案内スリット部２４の幅を容易に押し拡げることができるようになっている。係止穴部２３に対して嵌合係止状態にある突起部１３の係合を解除して牽引治具１０から光コネクタ１２を抜き外す場合、開口部１７と切欠き部２５との間に位置する治具本体１８を指で挟んで案内スリット部２４の幅が突起部１３の幅以上に拡がるように弾性変形させることにより、治具本体１８から光コネクタ１２を抜き外すことが可能となる。   Therefore, by elastically deforming the jig body 18 positioned between the opening 17 and the notch 25 so that the width of the guide slit 24 is expanded, the projection 13 of the optical connector 12 with respect to the guide slit 24 is formed. The passage is possible. In the present embodiment, the width of the guide slit portion 24 located on one end side of the jig body 18 is tapered toward the opening 17, and the optical connector 12 is inserted into the jig body 18 from the opening 17. At this time, the jig body 18 is forcibly elastically deformed by the protrusion 13 of the optical connector 12 so that the width of the guide slit 24 can be easily expanded. When the engagement of the protrusion 13 in the engagement locking state with respect to the locking hole 23 is released and the optical connector 12 is removed from the pulling jig 10, between the opening 17 and the notch 25. The optical connector 12 can be removed from the jig main body 18 by elastically deforming the guide main body 18 so that the width of the guide slit portion 24 is larger than the width of the protruding portion 13 with the jig main body 18 positioned between the fingers. .

このように、光コネクタ１２の突起部１３を利用して牽引治具１０と光コネクタ１２とを連結しているため、牽引治具１０の外寸を従来のものよりも小さくすることが可能であり、従来のものよりも狭くかつ曲率半径の小さな管路に対して牽引治具１０を挿通させることができる。   Thus, since the pulling jig 10 and the optical connector 12 are coupled using the protrusion 13 of the optical connector 12, the outer dimension of the pulling jig 10 can be made smaller than that of the conventional one. Yes, the traction jig 10 can be inserted into a pipe line that is narrower than the conventional one and has a smaller radius of curvature.

なお、案内スリット部２４の幅寸法（図１中、上下方向に沿った空隙の間隔）を突起部１３の幅寸法よりも小さく設定する必要があるけれども、上述した治具本体１８の弾性変形が無理なく行われるように、その幅を適切に設定することが望ましい。   In addition, although it is necessary to set the width dimension of the guide slit part 24 (the space | interval of the space | gap along the up-down direction in FIG. 1) smaller than the width dimension of the projection part 13, the elastic deformation of the jig | tool main body 18 mentioned above is carried out. It is desirable to set the width appropriately so that it can be performed without difficulty.

治具本体１８の他端側にあるブラケット２２に連結された接続金具２１には、牽引索が取り外し可能に接続される。本実施形態における接続金具２１は、いわゆるスイベルジョイントと呼称されるものであり、ブラケット２２に取り付けられたピン２６に対して揺動自在に連結された第１のリンク２７と、この第１のリンク２７に対してピン２６の軸線と直交する軸線回りに回動自在に連結された第２のリンク２８とを有する。各リンク２７，２８は共に環状をなし、第１のリンク２７の基端側はブラケット２２に形成された切欠き２９内に収容された状態でピン２６と直交する方向に変位可能である。第２のリンク２８が連結軸３０を介して第１のリンク２７に対し回動自在になっているため、牽引中の牽引索と光ファイバコード１１とが相対回転して牽引索に縒りが発生したとしても、この縒りがなくなるように牽引索を回転する（ねじる）ことにより、光ファイバコード１１側に望ましくないねじり応力が作用するのを未然に回避することができる。   A tow rope is detachably connected to the connection fitting 21 connected to the bracket 22 on the other end side of the jig body 18. The connection fitting 21 in the present embodiment is called a so-called swivel joint, and includes a first link 27 slidably connected to a pin 26 attached to the bracket 22, and the first link. 27, a second link 28 that is rotatably connected about an axis perpendicular to the axis of the pin 26. Each of the links 27 and 28 has an annular shape, and the base end side of the first link 27 can be displaced in a direction orthogonal to the pin 26 while being accommodated in a notch 29 formed in the bracket 22. Since the second link 28 is rotatable with respect to the first link 27 via the connecting shaft 30, the tow rope being pulled and the optical fiber cord 11 are rotated relative to each other, and the towing rope is bent. Even so, by rotating (twisting) the tow rope so as to eliminate this twist, it is possible to prevent an undesirable torsional stress from acting on the optical fiber cord 11 side.

本発明による光ファイバコード牽引治具の一実施形態の外観を光ファイバコードと共に表す平面図である。It is a top view showing the external appearance of one Embodiment of the optical fiber cord pulling jig by this invention with an optical fiber cord. 図１中のII−II矢視に沿った光ファイバコード牽引治具の内部構造を表す断面図である。It is sectional drawing showing the internal structure of the optical fiber cord pulling jig along the II-II arrow in FIG. 図１および図２に示した光ファイバコード牽引治具の外観を表す立体投影図である。It is a three-dimensional projection figure showing the external appearance of the optical fiber cord pulling jig shown in FIG. 1 and FIG. 光ファイバコード牽引治具と光ファイバコードとを連結した状態における図１に対応した平面図である。It is a top view corresponding to Drawing 1 in the state where an optical fiber cord pulling jig and an optical fiber cord were connected. 図４中のＶ−Ｖ矢視に沿った光ファイバコード牽引治具の断面図である。It is sectional drawing of the optical fiber cord pulling jig along the VV arrow in FIG.

符号の説明Explanation of symbols

１０ 牽引治具
１１ 光ファイバコード
１２ 光コネクタ
１３ 突起部
１４ コネクタ本体
１５ フェルール
１６ 光ファイバ
１７ 開口部
１８ 治具本体
１９ 係止部
２０ 着脱手段
２１ 接続金具
２２ ブラケット
２３ 係止穴部
２４ 案内スリット部
２５ 切欠き部
２６ ピン
２７ 第１のリンク
２８ 第２のリンク
２９ 切欠き
３０ 連結軸

DESCRIPTION OF SYMBOLS 10 Pulling jig | tool 11 Optical fiber cord 12 Optical connector 13 Protrusion part 14 Connector main body 15 Ferrule 16 Optical fiber 17 Opening part 18 Jig body 19 Locking part 20 Attachment / detachment means 21 Connecting bracket 22 Bracket 23 Locking hole part 24 Guide slit part 25 Notch portion 26 Pin 27 First link 28 Second link 29 Notch 30 Connecting shaft

Claims (5)

先端に光コネクタが取り付けられた光ファイバコードを牽引するための牽引治具であって、
光コネクタを抜き差しするための開口部を一端に有し、光コネクタを収容するための筒状をなす本体と、
光コネクタに突設された突起部が係止して光コネクタを一体的に連結するための係止部と、
この係止部に対して光コネクタの突起部を着脱するための着脱手段と、
前記本体に取り付けられて牽引索を接続するための接続手段と
を具えたことを特徴とする光ファイバコード牽引治具。 A pulling jig for pulling an optical fiber cord having an optical connector attached to the tip,
An opening for inserting and removing the optical connector at one end, and a cylindrical main body for accommodating the optical connector;
A locking part for integrally connecting the optical connector by locking the protruding part protruding from the optical connector,
Attaching / detaching means for attaching / detaching the protruding portion of the optical connector to / from the engaging portion,
An optical fiber cord pulling jig, comprising: connecting means attached to the main body for connecting a pulling rope. 前記係止部は、前記本体に形成されて光コネクタの突起部が係止する係止穴部を有し、前記着脱手段は、前記係止穴部と前記開口部とに連通するように前記本体に対する光コネクタの抜き差し方向に沿って前記本体に形成された案内スリット部と、この案内スリット部の延在方向と交差するように前記本体に形成されて一端が前記係止穴部に連通する切欠き部とを有し、前記案内スリット部の幅が拡がるように前記開口部と前記切欠き部との間に位置する前記本体が弾性変形して前記案内スリット部に対する光コネクタの突起部の通過を可能としたことを特徴とする請求項１に記載の光ファイバコード牽引治具。   The locking portion has a locking hole formed in the main body and locked by the protrusion of the optical connector, and the attachment / detachment means communicates with the locking hole and the opening. A guide slit formed in the main body along the insertion / removal direction of the optical connector with respect to the main body, and an end formed in the main body so as to intersect the extending direction of the guide slit, and one end communicates with the locking hole. The main body located between the opening and the notch so that the width of the guide slit increases, and the projection of the optical connector with respect to the guide slit is The optical fiber cord pulling jig according to claim 1, wherein the optical fiber cord pulling jig is allowed to pass. 前記本体の一端側に位置する前記案内スリット部の幅が前記開口部に向けてテーパ状に拡がっていることを特徴とする請求項２に記載の光ファイバコード牽引治具。   The optical fiber cord pulling jig according to claim 2, wherein a width of the guide slit portion positioned on one end side of the main body is tapered toward the opening. 前記接続手段が前記本体の他端側に取り付けられ、前記本体の他端側が先細り形状となっていることを特徴とする請求項１から請求項３の何れかに記載の光ファイバコード牽引治具。   The optical fiber cord pulling jig according to any one of claims 1 to 3, wherein the connecting means is attached to the other end of the main body, and the other end of the main body is tapered. . 前記接続手段は、牽引索を取り外し可能に接続するための接続金具を有し、この接続金具は、前記本体の他端部に取り付けられたピンに対して揺動自在に連結された第１のリンクと、この第１のリンクに対して前記ピンの軸線と直交する軸線回りに回動自在に連結された第２のリンクとを有することを特徴とする請求項４に記載の光ファイバコード牽引治具。

The connection means includes a connection fitting for detachably connecting the tow rope, and the connection fitting is connected to a pin attached to the other end of the main body in a swingable manner. 5. The optical fiber cord puller according to claim 4, further comprising: a link; and a second link that is pivotally connected to the first link about an axis perpendicular to the axis of the pin. jig.

JP2006161376A 2006-06-09 2006-06-09 Optical fiber cord pulling jig Expired - Fee Related JP4764262B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008114830A1 (en) * 2007-03-20 2008-09-25 Sumitomo Electric Industries, Ltd. Optical fiber cable with optical connector, method of passing the optical fiber cable, and pulling part and optical connector used for the method
JP6346703B1 (en) * 2017-06-29 2018-06-20 株式会社精工技研 Plug jig, plug and cable with plug
JP2018205356A (en) * 2017-05-30 2018-12-27 オリンパス株式会社 Connector, receptacle, and plug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07264761A (en) * 1994-03-18 1995-10-13 Fujikura Ltd Cable pulling end
WO1997042531A1 (en) * 1996-05-02 1997-11-13 Takayasu Kanemura Protector used for pulling end of cable connector
JP2002209318A (en) * 2001-01-10 2002-07-26 C I Kasei Co Ltd Cable traction metal tool
JP2003322727A (en) * 2002-05-02 2003-11-14 Furukawa Electric Co Ltd:The Cable, with connector attached thereto and wire- inserting method
JP2006119230A (en) * 2004-10-20 2006-05-11 Nippon Telegr & Teleph Corp <Ntt> Wiring-through-piping apparatus of optical fiber cord

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07264761A (en) * 1994-03-18 1995-10-13 Fujikura Ltd Cable pulling end
WO1997042531A1 (en) * 1996-05-02 1997-11-13 Takayasu Kanemura Protector used for pulling end of cable connector
JP2002209318A (en) * 2001-01-10 2002-07-26 C I Kasei Co Ltd Cable traction metal tool
JP2003322727A (en) * 2002-05-02 2003-11-14 Furukawa Electric Co Ltd:The Cable, with connector attached thereto and wire- inserting method
JP2006119230A (en) * 2004-10-20 2006-05-11 Nippon Telegr & Teleph Corp <Ntt> Wiring-through-piping apparatus of optical fiber cord

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008114830A1 (en) * 2007-03-20 2008-09-25 Sumitomo Electric Industries, Ltd. Optical fiber cable with optical connector, method of passing the optical fiber cable, and pulling part and optical connector used for the method
JP2008233559A (en) * 2007-03-20 2008-10-02 Sumitomo Electric Ind Ltd Fiber optic cable with optical connector, method for threading the fiber optic cable, and traction component and optical connector used for the method
US8311378B2 (en) 2007-03-20 2012-11-13 Sumitomo Electric Industries, Ltd. Optical fiber cable equipped with optical connector, method for introducing optical fiber cable, towing tool used in introducing method, and optical connector
JP2018205356A (en) * 2017-05-30 2018-12-27 オリンパス株式会社 Connector, receptacle, and plug
JP6346703B1 (en) * 2017-06-29 2018-06-20 株式会社精工技研 Plug jig, plug and cable with plug
JP2019012253A (en) * 2017-06-29 2019-01-24 株式会社精工技研 Plug fixture and plug, and cable with plug

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