JP5250723B2 - Optical communication adapter - Google Patents

Optical communication adapter Download PDF

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JP5250723B2
JP5250723B2 JP2013005934A JP2013005934A JP5250723B2 JP 5250723 B2 JP5250723 B2 JP 5250723B2 JP 2013005934 A JP2013005934 A JP 2013005934A JP 2013005934 A JP2013005934 A JP 2013005934A JP 5250723 B2 JP5250723 B2 JP 5250723B2
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shutter
adapter
insertion hole
plate
shutter member
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JP2013092800A (en
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正幸 地引
淳司 平
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Seikoh Giken Co Ltd
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Description

本発明は、光ファイバ接続用コネクタどうしまたは光ファイバ接続用コネクタと半導体レーザ等の光発信装置とを接続する光通信用アダプタに関する。   The present invention relates to an optical communication adapter for connecting optical fiber connecting connectors or an optical fiber connecting connector and a light emitting device such as a semiconductor laser.

半導体レーザ等の光発信装置から発信されるレーザ光を光ファイバを利用して伝送する光通信において、光ファイバを接続する手段として、光ファイバ接続用コネクタを着脱可能に挿入する光通信用アダプタが利用されている。光発信装置からレーザ光を発信した状態で、アダプタに挿入された光ファイバ接続用コネクタの着脱作業を行うと、作業者の目がアダプタから漏出するレーザ光に曝させる危険がある。   In optical communication in which laser light transmitted from an optical transmission device such as a semiconductor laser is transmitted using an optical fiber, an optical communication adapter for detachably inserting an optical fiber connection connector is used as means for connecting the optical fiber. It's being used. If the optical fiber connection connector inserted into the adapter is attached / detached in a state where laser light is emitted from the light emitting device, the operator's eyes may be exposed to the laser light leaking from the adapter.

そのような危険を回避するため、頂底壁および両側壁から形成されたハウジングと、ハウジングを前後方向へ貫通して光ファイバ接続用コネクタを着脱可能に挿入する挿入孔と、挿入孔の中央部に設置されてコネクタのフェルールを支持する光接続用スリーブと、挿入孔を開閉可能なシャッタ金具とを有する光通信用アダプタがある（特許文献１参照）。   In order to avoid such danger, a housing formed from the top and bottom walls, an insertion hole through which the optical fiber connector is detachably inserted through the housing in the front-rear direction, and a central portion of the insertion hole There is an optical communication adapter that has an optical connection sleeve that is installed in the housing and supports a ferrule of a connector, and a shutter fitting that can open and close an insertion hole (see Patent Document 1).

シャッタ金具は、中空かつ断面形状が角柱状の嵌合板と、嵌合板の前端縁につながる弾性変形可能なシャッタ板とから形成されている。嵌合板は、ハウジングの頂底壁および両側壁の外面を取り囲んだ状態で係合片やストッパーを介してハウジングに固定される。シャッタ板は、挿入孔の端部の内側に位置して挿入孔の中央部に向かって傾斜しつつ挿入孔を遮蔽する。このアダプタは、挿入孔に光ファイバ接続用コネクタを挿入すると、コネクタに押圧されてシャッタ板が弾性変形し、シャッタ板が挿入孔の中央部に向かって倒れ、挿入孔の遮蔽が解除される。コネクタを挿入孔から抜き取ると、シャッタ板がその弾性力（反発力）によって起き上がり、挿入孔を再び遮蔽する。   The shutter fitting is formed of a fitting plate that is hollow and has a prismatic cross section, and an elastically deformable shutter plate that is connected to the front end edge of the fitting plate. The fitting plate is fixed to the housing via an engagement piece and a stopper in a state of surrounding the outer surface of the top bottom wall and both side walls of the housing. The shutter plate is positioned inside the end of the insertion hole and shields the insertion hole while being inclined toward the center of the insertion hole. When the optical fiber connector is inserted into the insertion hole, the adapter is pressed by the connector and the shutter plate is elastically deformed, the shutter plate falls toward the center of the insertion hole, and the shielding of the insertion hole is released. When the connector is removed from the insertion hole, the shutter plate rises due to its elastic force (repulsive force) and shields the insertion hole again.

特開２００８−２０５６７号公報（ＪＰ．Ａ）JP 2008-20567 A (JP.A)

前記特許文献１に開示の光通信用アダプタは、シャッタ金具の嵌合板がアダプタの頂底壁および両側壁の外面を取り囲んだ状態でアダプタに固定されるから、シャッタ金具を取り付けたアダプタが規格の外形寸法よりも大きくなる場合がある。また、このアダプタに使用されるシャッタ金具は、プレス成形加工によって製作するが、係合片やストッパー等の部品点数が多く、それらの部品の精度を上げるためにプレス成形加工の難易度が高い。さらに、シャッタ金具をプレス成形加工によって作成した後、それを中空かつ角柱状に組み立てる必要があり、その分の手間と時間とを要するのみならず、シャッタ金具の製作コストがかかる結果、アダプタ自体の単価が上昇してしまう。   The optical communication adapter disclosed in Patent Document 1 is fixed to the adapter in a state where the fitting plate of the shutter fitting surrounds the top bottom wall and both side walls of the adapter. It may be larger than the external dimensions. The shutter fittings used for this adapter are manufactured by press molding, but there are a large number of parts such as engaging pieces and stoppers, and the degree of difficulty in press molding is high in order to increase the accuracy of these parts. Furthermore, after the shutter fitting is made by press molding, it is necessary to assemble it into a hollow and prismatic shape, which not only requires time and labor, but also costs for the production of the shutter fitting. Unit price will rise.

本発明の目的は、部品点数が少なく、製作が容易なシャッタ部材を有し、規格の外形寸法にすることができる光通信用アダプタを提供することにある。本発明の他の目的は、アダプタに対する取り付けが簡単なシャッタ部材を有し、組み立てに手間や時間がかからず、低い単価で作ることができる光通信用アダプタを提供することにある。   An object of the present invention is to provide an adapter for optical communication that has a shutter member that has a small number of parts and that can be easily manufactured, and can have a standard outer dimension. Another object of the present invention is to provide an adapter for optical communication that has a shutter member that can be easily attached to the adapter, requires less labor and time for assembly, and can be manufactured at a low unit price.

前記課題を解決するための本発明の前提は、前後方向へ延びる頂底壁および両側壁と、前記両側壁の間に位置して前記前後方向へ延びる少なくとも１つの仕切壁を含み、それら壁に囲繞されて前後方向へ貫通し、前記仕切壁を挟んで横方向へ並び、光ファイバ接続用コネクタが着脱可能に挿入される少なくとも２つの挿入孔と、挿入孔の中央部に設置されてコネクタのフェルールを支持する光接続用スリーブと、挿入孔の端部を開閉可能なシャッタ部材とを有する光通信用アダプタである。
The premise of the present invention for solving the above-mentioned problems includes a top bottom wall and both side walls extending in the front-rear direction, and at least one partition wall positioned between the both side walls and extending in the front-rear direction. through the longitudinal direction are surrounded, the sides of the partition walls parallel beauty laterally, and at least two insertion holes connector for optical fiber connection is removably inserted, it is installed in the central portion of the insertion hole connector This optical communication adapter has an optical connection sleeve that supports the ferrule and a shutter member that can open and close the end of the insertion hole.

前記前提における本発明の特徴は、アダプタが、底壁の外面に形成されて底壁の内面に向かって凹む底凹部と、両側壁の外面に形成されて両側壁の内面に向かって凹む両側凹部と、底壁の端面に形成されて挿入孔の中央部に向かって凹む端面凹部とを有し、シャッタ部材が、底板と、底板の両側縁から上方へ延びる両側板と、両側板の間に位置して、前記底板を共有しつつ前記横方向へ並び、底板の前端縁から上方へ延びる少なくとも２つの連結板と、連結板につながって底板から上方へ延びるとともに、所定の曲率半径を有して湾曲する弾性変形可能なシャッタ板とを有し、アダプタでは、シャッタ部材の底板が底凹部と略同形同大に成形されて底凹部に嵌合しつつ底凹部全域に密着し、シャッタ部材の両側板が両側凹部と略同形同大に成形されて両側凹部に嵌合しつつ両側凹部全域に密着し、シャッタ部材の連結板が端面凹部に嵌合し、シャッタ部材のシャッタ板が挿入孔の端部に位置して挿入孔の中央部に向かって凸となるように湾曲しつつ挿入孔を遮蔽するとともに、コネクタを挿入孔に挿入したときにコネクタに押圧されて挿入孔の中央部に向かって倒れ、シャッタ部材の底板が、少なくとも２つのシャッタ板の間に位置して挿入孔の中央部に向かって凹む凹部を有することにある。   The feature of the present invention in the above premise is that the adapter is formed on the outer surface of the bottom wall and is recessed toward the inner surface of the bottom wall, and the both side recesses formed on the outer surface of both side walls and recessed toward the inner surfaces of the side walls. And an end surface recess formed on the end surface of the bottom wall and recessed toward the center of the insertion hole, and the shutter member is located between the bottom plate, both side plates extending upward from both side edges of the bottom plate, and both side plates. The bottom plate is shared in the lateral direction and extends upward from the front edge of the bottom plate, and is connected to the connection plate and extends upward from the bottom plate, and has a predetermined radius of curvature. In the adapter, the bottom plate of the shutter member is formed to be approximately the same shape and size as the bottom recess and fits into the bottom recess while closely contacting the entire bottom recess. The plate is approximately the same shape and size as the recesses on both sides. The shutter plate is fitted into the recesses on both sides while being fitted to the recesses on both sides, the connecting plate of the shutter member is fitted into the recess on the end surface, and the shutter plate of the shutter member is positioned at the end of the insertion hole at the center of the insertion hole. The insertion hole is shielded while being curved so as to be convex, and when the connector is inserted into the insertion hole, it is pressed by the connector and falls toward the center of the insertion hole, so that the bottom plate of the shutter member has at least two There exists a recessed part located between shutter plates and dented toward the center part of an insertion hole.

本発明の他の一例として、アダプタの底壁の内面には、底壁の外面に向かって凹むとともに、シャッタ部材のシャッタ板が挿入孔の中央部に向かって倒れたときにそのシャッタ板を収容する収容凹部が形成されている。   As another example of the present invention, the inner surface of the bottom wall of the adapter is recessed toward the outer surface of the bottom wall and accommodates the shutter plate when the shutter plate of the shutter member falls toward the center of the insertion hole. An accommodating recess is formed.

本発明の他の一例としては、シャッタ部材のシャッタ板が、その基端に位置して底壁の内面に密着する固定部と、その延出端に位置して挿入孔の中央部に向かって所定角度で折れ曲がる折曲部と、固定部と折曲部との間に位置して挿入孔の中央部に向かって凸となるように湾曲する湾曲部とを有する。   As another example of the present invention, the shutter plate of the shutter member is positioned at the base end thereof and closely contacts the inner surface of the bottom wall, and is positioned at the extension end toward the center portion of the insertion hole. A bending portion that bends at a predetermined angle; and a bending portion that is located between the fixing portion and the bending portion and curves so as to protrude toward the center of the insertion hole.

本発明の他の一例としては、シャッタ板の曲率半径が５．０〜７．５ｍｍの範囲にある。
As another example of the present invention, the radius of curvature of the shutter plate is in the range of 5.0 to 7.5 mm .

本発明の他の一例としては、シャッタ部材の厚み寸法が０．０１〜０．１ｍｍの範囲に
あり、シャッタ板の弾性反発力が０．１〜０．６Ｎの範囲にある。 As another example of the present invention, the thickness dimension of the shutter member is in the range of 0.01 to 0.1 mm, and the elastic repulsion force of the shutter plate is in the range of 0.1 to 0.6N.

本発明に係る光通信用アダプタによれば、シャッタ部材が底板と底板の両側縁から上方へ延びる両側板と両側板の間に位置して、底板を共有しつつ横方向へ並び、底板の前端縁から上方へ延びる少なくとも２つの連結板と連結板につながって所定の曲率半径で湾曲するシャッタ板とから作られるから、シャッタ部材の部品点数が少なく、それをプレス成形加工によって製作する場合であっても、加工の難易度が低く、プレス成形加工によって同形同大のシャッタ部材を短時間に大量に製作することができる。アダプタは、低い製作コストでシャッタ部材を製作することができるから、アダプタ自体を低い単価で作ることができる。アダプタは、シャッタ部材の底板をアダプタの底壁外面に形成された底凹部に嵌合させ、シャッタ部材の両側板をアダプタの両側壁外面に形成された両側凹部に嵌合させることで、シャッタ部材をアダプタに簡単に取り付けることができるから、シャッタ部材のアダプタに対する取り付けが容易であり、アダプタの組み立てに手間や時間がかからず、その結果、アダプタ自体を低い単価で作ることができる。また、シャッタ部材をアダプタに取り付けた場合、アダプタの外形寸法が大きくなることはなく、アダプタを規格の外形寸法に納めることができる。このアダプタは、その挿入孔の端部に光ファイバ接続用コネクタを挿入すると、シャッタ部材のシャッタ板がコネクタに押圧されて挿入孔の中央部に向かって倒れるから、シャッタ板による遮蔽が解除され、光信号を接続させることができる。また、コネクタを挿入孔の端部から抜き取ると、シャッタ板がその弾性力によって起き上がり、挿入孔を再び遮蔽するから、アダプタにおける光の漏出を確実に防ぐことができる。   According to the optical communication adapter of the present invention, the shutter member is located between the bottom plate and the both side plates that extend upward from both side edges of the bottom plate, and is arranged in the horizontal direction while sharing the bottom plate, from the front edge of the bottom plate. Since it is made of at least two connecting plates extending upward and a shutter plate connected to the connecting plate and curved with a predetermined radius of curvature, the number of parts of the shutter member is small, and even when it is manufactured by press molding. The processing difficulty is low, and a large number of shutter members of the same shape and size can be manufactured in a short time by press molding. Since the adapter can manufacture the shutter member at a low manufacturing cost, the adapter itself can be manufactured at a low unit price. The adapter is configured such that the bottom plate of the shutter member is fitted into the bottom concave portion formed on the outer surface of the bottom wall of the adapter, and the both side plates of the shutter member are fitted to the concave portions on both sides formed on the outer side surfaces of the adapter. Can be easily attached to the adapter, the shutter member can be easily attached to the adapter, and it takes less time and effort to assemble the adapter. As a result, the adapter itself can be made at a low unit price. Further, when the shutter member is attached to the adapter, the external dimension of the adapter does not increase, and the adapter can be accommodated in the standard external dimension. When the optical fiber connector is inserted into the end of the insertion hole of this adapter, the shutter plate of the shutter member is pressed against the connector and falls toward the center of the insertion hole. An optical signal can be connected. Further, when the connector is pulled out from the end of the insertion hole, the shutter plate rises due to its elastic force and shields the insertion hole again, so that light leakage from the adapter can be reliably prevented.

光通信用アダプタは、シャッタ部材の連結板がアダプタの底壁端面に形成された端面凹部に嵌合し、シャッタ部材の底板が底壁の外面に形成された底凹部と略同形同大に成形されて底凹部全域に密着し、シャッタ部材の両側板が両側壁の外面に形成された両側凹部と略同形同大に成形されて両側凹部全域に密着するから、端面凹部に嵌合するシャッタ部材の連結板や底凹部全域に密着するシャッタ部材の底板、両側凹部全域に密着するシャッタ部材の両側板によってシャッタ部材がアダプタに確実に固定され、シャッタ部材のずれ動きやシャッタ部材のアダプタからの抜脱を防ぐことができ、シャッタ部材を利用して挿入孔を確実に遮蔽することができる。   In the optical communication adapter, the connecting plate of the shutter member is fitted into the end surface recess formed on the end wall end surface of the adapter, and the bottom plate of the shutter member is approximately the same shape and size as the bottom recess formed on the outer surface of the bottom wall. Molded and closely attached to the entire bottom recess, and the both side plates of the shutter member are formed to be approximately the same shape and size as the both side recesses formed on the outer surfaces of the both side walls and closely adhere to the entire recess on both sides, so that it fits into the end surface recess. The shutter member is securely fixed to the adapter by the shutter member connecting plate, the bottom plate of the shutter member that is in close contact with the entire bottom concave portion, and the both side plates of the shutter member that are in close contact with the entire concave portion on both sides. The insertion hole can be reliably shielded using the shutter member.

光通信用アダプタは、シャッタ部材のシャッタ板が挿入孔の中央部に向かって倒れたときにそのシャッタ板を収容する収容凹部が底壁の内面に形成されており、シャッタ板が倒れる過程においてシャッタ板が収容凹部に順次収容されるから、シャッタ板が光ファイバ接続用コネクタの端部への挿入や抜き取りの邪魔をすることはなく、コネクタを挿入孔の端部に円滑に挿入することができるとともに、コネクタを挿入孔の端部から円滑に抜き取ることができる。   In the optical communication adapter, when the shutter plate of the shutter member is tilted toward the center portion of the insertion hole, a housing recess for housing the shutter plate is formed on the inner surface of the bottom wall, and the shutter is in the process of tilting the shutter plate. Since the plates are sequentially housed in the housing recesses, the shutter plate can be smoothly inserted into the end of the insertion hole without interfering with the insertion or removal of the optical fiber connector connector. At the same time, the connector can be smoothly removed from the end of the insertion hole.

光通信用アダプタは、シャッタ部材のシャッタ板が底壁の内面に密着する固定部と所定角度で折れ曲がる折曲部と挿入孔の中央部に向かって凸となるように湾曲する湾曲部とを有するから、底板とシャッタ板の固定部とがアダプタの底壁の内外面を挟み込んだ状態となり、それによってシャッタ部材がアダプタに確実に固定され、シャッタ部材のずれ動きやシャッタ部材のアダプタからの抜脱を防ぐことができ、シャッタ部材を利用して挿入孔を確実に遮蔽することができる。アダプタは、シャッタ部材のシャッタ板の折曲部が挿入孔の中央部に向かって所定角度で折れ曲がるから、光ファイバ接続用コネクタを挿入孔の端部に挿入したときに、シャッタ板の延出端のエッジがコネクタに接触することなく、シャッタ板の延出端のエッジがコネクタに接触することによるコネクタの傷付きを防ぐことができる。このアダプタは、シャッタ板の固定部と折曲部との間に位置する湾曲部が挿入孔の中央部に向かって凸となるように湾曲するから、湾曲部によってシャッタ板の弾性力（反発力）が均一に分散してシャッタ板の耐久性が向上し、シャッタ板が倒れ込みと起き上がりとを繰り返したとしても、シャッタ板の弾性力が低下することはなく、繰り返しの使用においてシャッタ板を利用して挿入孔を確実に遮蔽することができる。   The adapter for optical communication includes a fixed portion where the shutter plate of the shutter member is in close contact with the inner surface of the bottom wall, a bent portion that bends at a predetermined angle, and a curved portion that curves so as to protrude toward the center portion of the insertion hole. Thus, the bottom plate and the fixed portion of the shutter plate sandwich the inner and outer surfaces of the bottom wall of the adapter, so that the shutter member is securely fixed to the adapter, and the shutter member is displaced and the shutter member is removed from the adapter. The insertion hole can be reliably shielded using the shutter member. Since the bent portion of the shutter plate of the shutter member bends at a predetermined angle toward the center portion of the insertion hole, the adapter has an extended end of the shutter plate when the optical fiber connector is inserted into the end portion of the insertion hole. The edge of the shutter plate does not contact the connector, and the damage of the connector due to the contact of the edge of the extended end of the shutter plate with the connector can be prevented. Since this adapter is curved so that the curved portion located between the fixed portion and the bent portion of the shutter plate is convex toward the center of the insertion hole, the elastic force (repulsive force) of the shutter plate is caused by the curved portion. ) Evenly distributed, the durability of the shutter plate is improved, and even if the shutter plate repeatedly falls and rises, the elastic force of the shutter plate does not decrease, and the shutter plate is used for repeated use. Thus, the insertion hole can be reliably shielded.

光通信用アダプタは、両側壁の間に位置する少なくとも１つの仕切壁を含むとともに、仕切板を挟んで横方向へ並ぶ少なくとも２つの挿入孔を備え、シャッタ部材が底板を共有しつつ横方向へ並ぶ少なくとも２つの連結板とシャッタ板とを有するから、少なくとも２つの光ファイバ接続用コネクタを横方向へ並べた状態でそれらコネクタをそれら挿入孔の端部に挿入し、それらコネクタを介して光を接続させることができ、一度に複数の線路による光接続を行うことができる。アダプタは、シャッタ部材が底板と底板の両側縁から上方へ延びる両側板と底板の前端縁から上方へ延びる少なくとも２つの連結板と連結板につながって所定の曲率半径で湾曲する少なくとも２つのシャッタ板とから作られるから、シャッタ部材の部品点数が少なく、それをプレス成形加工によって製作する場合であっても、加工の難易度が低く、プレス成形加工によって同形同大のシャッタ部材を短時間に大量に製作することができる。アダプタは、低い製作コストでシャッタ部材を製作することができるから、アダプタ自体を低い単価で作ることができる。アダプタは、シャッタ部材の底板をアダプタの底壁外面に形成された底凹部に嵌合させ、シャッタ部材の両側板をアダプタの両側壁外面に形成された両側凹部に嵌合させることで、シャッタ部材をアダプタに簡単に取り付けることができるから、シャッタ部材のアダプタに対する取り付けが容易であり、アダプタの組み立てに手間や時間がかからず、その結果、アダプタ自体を低い単価で作ることができる。また、シャッタ部材をアダプタに取り付けた場合、アダプタの外形寸法が大きくなることはなく、アダプタを規格の外形寸法に納めることができる。このアダプタは、それら挿入孔の端部に光ファイバ接続用コネクタを挿入すると、シャッタ部材のシャッタ板がコネクタに押圧されて挿入孔の中央部に向かって倒れるから、シャッタ板による遮蔽が解除され、光信号を接続させることができる。また、コネクタをそれら挿入孔の端部から抜き取ると、シャッタ板がその弾性力（反発力）によって起き上がり、挿入孔を再び遮蔽するから、アダプタにおける光の漏出を確実に防ぐことができる。   The optical communication adapter includes at least one partition wall located between both side walls, and includes at least two insertion holes arranged in the lateral direction with the partition plate interposed therebetween, and the shutter member shares the bottom plate in the lateral direction. Since it has at least two connecting plates and a shutter plate arranged side by side, at least two optical fiber connectors are arranged in the horizontal direction, and these connectors are inserted into the end portions of the insertion holes, and light is transmitted through these connectors. It is possible to connect, and optical connection by a plurality of lines can be performed at a time. The adapter has at least two shutter plates in which a shutter member is connected to the bottom plate, both side plates extending upward from both side edges of the bottom plate, at least two connecting plates extending upward from the front end edge of the bottom plate, and the connecting plate and curved at a predetermined radius of curvature. Therefore, even if the number of parts of the shutter member is small and it is manufactured by press molding, the difficulty of processing is low, and the same size and the same size shutter member can be quickly formed by press molding. Can be produced in large quantities. Since the adapter can manufacture the shutter member at a low manufacturing cost, the adapter itself can be manufactured at a low unit price. The adapter is configured such that the bottom plate of the shutter member is fitted into the bottom concave portion formed on the outer surface of the bottom wall of the adapter, and the both side plates of the shutter member are fitted to the concave portions on both sides formed on the outer side surfaces of the adapter. Can be easily attached to the adapter, the shutter member can be easily attached to the adapter, and it takes less time and effort to assemble the adapter. As a result, the adapter itself can be made at a low unit price. Further, when the shutter member is attached to the adapter, the external dimension of the adapter does not increase, and the adapter can be accommodated in the standard external dimension. When the adapter is inserted into the end of the insertion hole, the adapter is pushed by the shutter plate of the shutter member and falls toward the center of the insertion hole. An optical signal can be connected. Further, when the connectors are extracted from the end portions of the insertion holes, the shutter plate rises due to the elastic force (repulsive force) and shields the insertion holes again, so that light leakage from the adapter can be reliably prevented.

光通信用アダプタは、シャッタ部材の底板がそれらシャッタ板の間に位置して挿入孔の中央部に向かって凹む凹部を有するから、光ファイバ接続用コネクタの挿入によってシャッタ部材の一方のシャッタ板がその弾性力に抗して倒れたとしても、凹部によって一方のシャッタ板の倒れ込みの力が横方向へ並ぶ他方のシャッタ板に伝わることはなく、一方のシャッタ板が倒れたとしても、他方のシャッタ板がそれに追従して倒れることがなく、他方のシャッタ板によって他方の挿入孔を確実に遮蔽することができる。   In the optical communication adapter, since the bottom plate of the shutter member is located between the shutter plates and has a recess that is recessed toward the center of the insertion hole, one shutter plate of the shutter member is elasticized by insertion of the optical fiber connector. Even if it falls against the force, the depression force of one shutter plate is not transmitted to the other shutter plate arranged in the lateral direction by the recess, and even if one shutter plate falls, the other shutter plate The other insertion hole can be reliably shielded by the other shutter plate without falling down following the movement.

光通信用アダプタは、シャッタ板の曲率半径が５．０〜７．５ｍｍの範囲にあるから、光ファイバ接続用コネクタを挿入孔に挿入したときに、シャッタ板がコネクタのフェルールに接触することなく、シャッタ板がコネクタのフェルールに接触することによるフェルールの傷付きを防ぐことができる。このアダプタは、シャッタ板が挿入孔の中央部に向かって前記曲率半径で湾曲しているから、シャッタ板の弾性力（反発力）が均一に分散してシャッタ板の耐久性が向上し、シャッタ板が倒れ込みと起き上がりとを繰り返したとしても、シャッタ板の弾性力が低下することはなく、繰り返しの使用においてシャッタ板を利用して挿入孔を確実に遮蔽することができる。   Since the optical communication adapter has a radius of curvature of the shutter plate in the range of 5.0 to 7.5 mm, the shutter plate does not come into contact with the ferrule of the connector when the optical fiber connector is inserted into the insertion hole. Further, the ferrule can be prevented from being damaged due to the shutter plate coming into contact with the ferrule of the connector. In this adapter, since the shutter plate is curved with the radius of curvature toward the center of the insertion hole, the elastic force (repulsive force) of the shutter plate is uniformly dispersed, and the durability of the shutter plate is improved. Even if the plate repeatedly falls and rises, the elastic force of the shutter plate does not decrease, and the insertion hole can be reliably shielded using the shutter plate in repeated use.

光通信用アダプタは、シャッタ部材の厚み寸法が０．０１〜０．１ｍｍの範囲にあるから、プレス成形加工によって同形同大のシャッタ部材を短時間に大量に製作することができ、低い製作コストでシャッタ部材を製作することができ、その結果、アダプタ自体を低い単価で作ることができる。このアダプタは、シャッタ板の弾性反発力が０．１〜０．６Ｎの範囲にあるから、その挿入孔の端部に光ファイバ接続用コネクタを挿入したときに、シャッタ部材のシャッタ板が挿入孔の中央部に向かって確実に倒れ、シャッタ板による遮蔽を確実に解除することができる。また、コネクタを挿入孔の端部から抜き取ったときに、シャッタ板がその弾性力によって確実に起き上がるから、挿入孔を確実に遮蔽することができる。   Since the optical communication adapter has a shutter member thickness in the range of 0.01 to 0.1 mm, a large number of shutter members of the same shape and the same size can be manufactured in a short time by press molding, and the manufacturing is low. The shutter member can be manufactured at a low cost, and as a result, the adapter itself can be manufactured at a low unit price. Since this adapter has an elastic repulsion force in the range of 0.1 to 0.6 N, when the optical fiber connector is inserted into the end of the insertion hole, the shutter plate of the shutter member is inserted into the insertion hole. It is possible to reliably fall down toward the center of the shutter and to reliably release the shielding by the shutter plate. Further, when the connector is pulled out from the end of the insertion hole, the shutter plate is surely raised by its elastic force, so that the insertion hole can be reliably shielded.

一例として示す光通信用アダプタの斜視図。The perspective view of the adapter for optical communications shown as an example. アダプタの底壁を示す底面図。The bottom view which shows the bottom wall of an adapter. アダプタの側壁を示す側面図。The side view which shows the side wall of an adapter. シャッタ部材とストッパー部材とを取り付ける以前のアダプタの底壁を示す底面図。The bottom view which shows the bottom wall of the adapter before attaching a shutter member and a stopper member. シャッタ部材とストッパー部材とを取り付ける以前のアダプタの側壁を示す側面図。The side view which shows the side wall of the adapter before attaching a shutter member and a stopper member. 一例として示すシャッタ部材の斜視図。The perspective view of the shutter member shown as an example. 一例として示すストッパー部材の斜視図。The perspective view of the stopper member shown as an example. 図１の８−８線矢視断面図。FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 1. 光通信用アダプタの挿入孔の開口端部に対する光ファイバ接続用コネクタの挿入過程を示す図８と同様の矢視断面図。FIG. 9 is a cross-sectional view similar to FIG. 8 showing the process of inserting the optical fiber connector into the opening end of the insertion hole of the optical communication adapter. 光通信用アダプタの挿入孔の開口両端部に光ファイバ接続用コネクタを挿入した後の図８と同様の矢視断面図。FIG. 9 is a cross-sectional view similar to FIG. 8 after inserting an optical fiber connection connector into both ends of the opening of the insertion hole of the optical communication adapter. 他の一例として示す光通信用アダプタの斜視図。The perspective view of the adapter for optical communications shown as another example. アダプタの底壁を示す底面図。The bottom view which shows the bottom wall of an adapter. シャッタ部材とストッパー部材とを取り付ける以前のアダプタの底壁を示す底面図。The bottom view which shows the bottom wall of the adapter before attaching a shutter member and a stopper member. 他の一例として示すシャッタ部材の斜視図。The perspective view of the shutter member shown as another example. 他の一例として示すストッパー部材の斜視図。The perspective view of the stopper member shown as another example.

一例として示す光通信用アダプタの斜視図である図１等の添付の図面を参照し、本発明に係る光通信用アダプタの詳細を説明すると、以下のとおりである。なお、図２は、アダプタ１０Ａの底壁１２を示す底面図であり、図３は、アダプタ１０Ａの側壁１３を示す側面図である。図４は、シャッタ部材１７（遮蔽金具）とストッパー部材１８（係止金具）とを取り付ける以前のアダプタ１０Ａの底壁１２を示す底面図であり、図５は、シャッタ部材１７とストッパー部材１８とを取り付ける以前のアダプタ１０Ａの側壁１３を示す側面図である。図６は、一例として示すシャッタ部材１７の斜視図であり、図７は、一例として示すストッパー部材１８の斜視図である。図８は、図１の８−８線矢視断面図である。図１〜３，６，７では、前後方向を矢印Ａ、横方向を矢印Ｂで示し、上下方向を矢印Ｃで示す。   The details of the optical communication adapter according to the present invention will be described below with reference to the accompanying drawings such as FIG. 1 which is a perspective view of the optical communication adapter shown as an example. 2 is a bottom view showing the bottom wall 12 of the adapter 10A, and FIG. 3 is a side view showing the side wall 13 of the adapter 10A. 4 is a bottom view showing the bottom wall 12 of the adapter 10A before attaching the shutter member 17 (shielding metal fitting) and the stopper member 18 (locking metal fitting), and FIG. 5 shows the shutter member 17, the stopper member 18 and the like. It is a side view which shows the side wall 13 of the adapter 10A before attaching. FIG. 6 is a perspective view of a shutter member 17 shown as an example, and FIG. 7 is a perspective view of a stopper member 18 shown as an example. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 1-3, 6 and 7, the front-rear direction is indicated by an arrow A, the lateral direction is indicated by an arrow B, and the up-down direction is indicated by an arrow C.

光通信用アダプタ１０Ａは、半導体レーザ等の光発信装置から発信されるレーザ光（光信号）を、光ファイバを利用して伝送する光通信において、光ファイバ等を接続する接続手段として利用される。アダプタ１０Ａは、合成樹脂あるいは亜鉛ダイカスト等の金属から作られたハウジングであり、図４，５に一点鎖線で示す中心線Ｌを挟んでその形状が対称型に成形されている（その形状が鏡像関係にある）。   The optical communication adapter 10A is used as a connection means for connecting an optical fiber or the like in optical communication in which a laser beam (optical signal) transmitted from an optical transmission device such as a semiconductor laser is transmitted using an optical fiber. . The adapter 10A is a housing made of a metal such as synthetic resin or zinc die-cast, and the shape thereof is formed symmetrically with a center line L indicated by a one-dot chain line in FIGS. 4 and 5 (the shape is a mirror image). Is related).

アダプタ１０Ａは、上下方向へ離間対向して前後方向へ延びる頂底壁１１，１２と、横方向へ離間対向して前後方向へ延びる両側壁１３，１４と、それら壁１１〜１４に囲繞されて前後方向へ貫通する挿入孔１５と、挿入孔１５に設置されたスリーブホルダ５７および光接続用割りスリーブ１６と（図８参照）、金属製（たとえば、ばね用ステンレス鋼板）のシャッタ部材１７および金属製（たとえば、ばね用ステンレス鋼板）のストッパー部材１８とを有する。両側壁１３，１４は、頂底壁１１，１２に直交してそれら壁１１，１２につながっている。   The adapter 10A is surrounded by the top and bottom walls 11 and 12 extending in the front-rear direction and spaced apart from each other in the vertical direction, and both side walls 13 and 14 extending in the front-rear direction and spaced apart from each other in the horizontal direction. Insertion hole 15 penetrating in the front-rear direction, sleeve holder 57 and optical connection split sleeve 16 installed in the insertion hole 15 (see FIG. 8), shutter member 17 made of metal (for example, stainless steel plate for spring) and metal And a stopper member 18 made of (for example, a stainless steel plate for springs). The side walls 13 and 14 are connected to the walls 11 and 12 at right angles to the top and bottom walls 11 and 12.

挿入孔１５は、前後方向へ離間対向する一対の開口両端部１９，２０（端部）と、それら開口両端部１９，２０の間に位置する中央部２１とを有する。挿入孔１５の開口両端部１９，２０には、後記する光ファイバ接続用コネクタ５８が着脱可能に挿入される。スリーブホルダ５７は、中空円柱状に成形され、挿入孔１５の中央部２１に位置して前後方向へ延びている。光接続用割りスリーブ１６は、挿入孔１５の中央部２１に位置し、スリーブホルダ５７の内側に保持された状態で前後方向へ延びている。スリーブ１６は、光ファイバ接続用コネクタ５８を挿入孔１５に挿入したときに、コネクタ５８の端部から露出する円柱状のフェルール６２を支持する（図１０参照）。   The insertion hole 15 has a pair of opening both end portions 19 and 20 (end portions) that are spaced apart from each other in the front-rear direction, and a central portion 21 that is located between the opening both end portions 19 and 20. An optical fiber connector 58 to be described later is detachably inserted into both open ends 19 and 20 of the insertion hole 15. The sleeve holder 57 is formed in a hollow cylindrical shape, and is positioned at the central portion 21 of the insertion hole 15 and extends in the front-rear direction. The optical connection split sleeve 16 is located at the central portion 21 of the insertion hole 15 and extends in the front-rear direction while being held inside the sleeve holder 57. The sleeve 16 supports a cylindrical ferrule 62 exposed from the end of the connector 58 when the optical fiber connector 58 is inserted into the insertion hole 15 (see FIG. 10).

アダプタ１０Ａの開口両端部１９，２０には、光ファイバ接続用コネクタ５８の係合部材６１（図９，１０参照）が着脱可能に係合する２つの係合部２２，２３（図８参照）が作られている。それら係合部２２，２３は、中心線Ｌを挟んで開口両端部１９，２０に対称型に作られている（係合部２２，２３が鏡像関係にある）。それら係合部２２，２３は、両側壁１３，１４に形成されて開口両端部１９，２０から中央部２１に向かって前後方向へ延びる第１フランジ２４と、頂壁１１と両側壁１３，１４との交差箇所に形成されて開口両端部１９，２０から中央部２１に向かって前後方向へ延びる第２フランジ２５と、それらフランジ２４，２５の間に位置して前後方向へ延びる案内溝２６と、頂壁１１に形成されてコネクタ５８の係合部材６１の係入突起６９（図９，１０参照）が着脱可能に係入する係入開口部２７とから形成されている。第２フランジ２５は、開口端部１９，２０から中央部２１に向かって上下方向下方へ傾斜している。   Two engaging portions 22 and 23 (see FIG. 8) with which the engaging members 61 (see FIGS. 9 and 10) of the optical fiber connector 58 are detachably engaged with the opening both ends 19 and 20 of the adapter 10A. Is made. The engaging portions 22 and 23 are formed symmetrically at both ends 19 and 20 of the opening across the center line L (the engaging portions 22 and 23 are in a mirror image relationship). The engaging portions 22, 23 are formed on the side walls 13, 14 and extend from the opening both ends 19, 20 toward the center portion 21 in the front-rear direction, the top wall 11, and the side walls 13, 14. A second flange 25 extending in the front-rear direction from the open ends 19 and 20 toward the central part 21 and a guide groove 26 positioned between the flanges 24 and 25 and extending in the front-rear direction. An engaging projection 69 (see FIGS. 9 and 10) of the engaging member 61 of the connector 58 formed on the top wall 11 is formed from an engaging opening 27 for removably engaging. The second flange 25 is inclined downward in the vertical direction from the open end portions 19 and 20 toward the central portion 21.

アダプタ１０Ａの底壁１２の外面には、底壁１２の内面に向かって上下方向へ凹む２つの底凹部２８が形成されている。それら底凹部２８は、中心線Ｌを挟んで対称型に作られている（底凹部２８が鏡像関係にある）。アダプタ１０Ａの底壁１２の内面には、底壁１２の外面に向かって上下方向へ凹む２つの収容凹部５６が形成されている（図８参照）。それら収容凹部５６は、中心線Ｌを挟んで対称型に作られている（収容凹部５６が鏡像関係にある）。それら収容凹部５６は、その平面形状がシャッタ部材１７の後記する折曲部５１および湾曲部５２のそれよりもわずかに大きく、折曲部５１および湾曲部５２を収容可能である。アダプタ１０Ａの底壁１２の両端面２９（端面）には、挿入孔１５の中央部２１に向かって凹む２つの端面凹部３０が形成されている。端面凹部３０は、中心線Ｌを挟んで対称型に作られている（端面凹部３０が鏡像関係にある）。   On the outer surface of the bottom wall 12 of the adapter 10 </ b> A, two bottom recesses 28 that are recessed in the vertical direction toward the inner surface of the bottom wall 12 are formed. These bottom recesses 28 are made symmetrical with respect to the center line L (the bottom recesses 28 are mirror images). On the inner surface of the bottom wall 12 of the adapter 10A, two housing recesses 56 that are recessed in the vertical direction toward the outer surface of the bottom wall 12 are formed (see FIG. 8). The housing recesses 56 are formed symmetrically with the center line L in between (the housing recesses 56 are in a mirror image relationship). These accommodating recesses 56 have a slightly larger planar shape than that of the bent portion 51 and the curved portion 52 described later, and can accommodate the bent portion 51 and the curved portion 52. Two end surface recesses 30 that are recessed toward the center portion 21 of the insertion hole 15 are formed on both end surfaces 29 (end surfaces) of the bottom wall 12 of the adapter 10 </ b> A. The end surface recess 30 is made symmetrical with respect to the center line L (the end surface recess 30 is in a mirror image relationship).

底凹部２８は、図４に示すように、挿入孔１５の開口両端部１９，２０の側（中心線Ｌの前後方向前方）に位置する略矩形の第１凹部分３１と、中央部２１の側（第１凹部分３１の前後方向後方）に位置する略矩形の第２凹部分３２と、第２凹部分３２の前後方向後方に位置する略矩形の第３凹部分３３と、第１および第２凹部分３１，３２につながる段差部分３４と、第２および第３凹部分３２，３３につながる段差部分３５とを有する。   As shown in FIG. 4, the bottom concave portion 28 includes a substantially rectangular first concave portion 31 positioned on the opening end portions 19 and 20 side of the insertion hole 15 (frontward in the front-rear direction of the center line L), and the central portion 21. A substantially rectangular second concave portion 32 positioned on the side (the rear in the front-rear direction of the first concave portion 31), a substantially rectangular third concave portion 33 positioned in the rear in the front-rear direction of the second concave portion 32, the first and A step portion 34 connected to the second recessed portions 31 and 32 and a step portion 35 connected to the second and third recessed portions 32 and 33 are provided.

第１凹部分３１では、その横方向両端縁が底壁１２の内側に位置し、第１凹部分３１の横方向両端縁と底壁１２との間に段差が生じ、底壁１２が第１凹部分３１に対する障壁となっている。第２凹部分３２は、その深さ寸法（底壁１２の外面から内面に向かう第２凹部分３２の凹み寸法）が第１凹部分３１のそれよりも深く、第３凹部分３３のそれよりも深い。第３凹部分３３は、その深さ寸法（底壁１２の外面から内面に向かう第３凹部分３３の凹み寸法）が第１凹部分３１のそれよりも深く、第２凹部分３２のそれよりも浅い。第３凹部分３３と底壁１２との間に残差が生じ、底壁１２が第３凹部分３３に対する障壁となっている。第１凹部分３１と第２凹部分３２との間に残差が生じ、第１凹部分３１が第２凹部分３２に対する障壁となり、第３凹部分３３と第２凹部分３２との間に残差が生じ、第３凹部分３３が第２凹部分３２に対する障壁となっている。   In the first recessed portion 31, both lateral edges thereof are located inside the bottom wall 12, a step is generated between the lateral both ends of the first recessed portion 31 and the bottom wall 12, and the bottom wall 12 is the first wall. This is a barrier against the concave portion 31. The second recessed portion 32 has a depth dimension (a recessed size of the second recessed portion 32 extending from the outer surface to the inner surface of the bottom wall 12) deeper than that of the first recessed portion 31 and more than that of the third recessed portion 33. Also deep. The third recessed portion 33 has a depth dimension (a recessed size of the third recessed portion 33 extending from the outer surface to the inner surface of the bottom wall 12) deeper than that of the first recessed portion 31 and more than that of the second recessed portion 32. Also shallow. A residual is generated between the third recessed portion 33 and the bottom wall 12, and the bottom wall 12 is a barrier to the third recessed portion 33. A residual is generated between the first concave portion 31 and the second concave portion 32, the first concave portion 31 becomes a barrier to the second concave portion 32, and the third concave portion 33 and the second concave portion 32 are interposed between them. A residual is generated, and the third concave portion 33 is a barrier to the second concave portion 32.

アダプタ１０Ａの両側壁１３，１４の外面には、両側壁１３，１４の外面から内面に向かって横方向へ凹む両側凹部３６が形成されている。両側凹部３６は、一方の側壁１３と他方の側壁１４とにおいて同一形状に作られ、中心線Ｌを挟んで対称型に作られている（両側凹部３６が鏡像関係にある）。両側凹部３６は、図５に示すように、底壁１２の側に位置して第３凹部分３３につながる第４凹部分３７と、第４凹部分３７の内側に位置して第２凹部分３２につながる第５凹部分３８とを有する。   Both side recesses 36 are formed on the outer surfaces of the side walls 13 and 14 of the adapter 10A so as to be recessed laterally from the outer surfaces of the side walls 13 and 14 toward the inner surface. The both side recesses 36 are formed in the same shape on one side wall 13 and the other side wall 14 and are formed symmetrically with the center line L in between (the both side recesses 36 are in a mirror image relationship). As shown in FIG. 5, the both side recesses 36 are located on the bottom wall 12 side and connected to the third recess portion 33, and on the inside of the fourth recess portion 37, the second recess portion 37. And a fifth concave portion 38 connected to 32.

第５凹部分３８は、その深さ寸法（両側壁１３，１４の外面から内面に向かう第５凹部分３８の凹み寸法）が第４凹部分３７のそれよりも深い。第５凹部分３８は、第２凹部分３２につながって前後方向の幅寸法が狭い幅狭い部位３９と、幅狭い部位３９につながって前後方向の幅寸法が幅狭い部位３８のそれよりも広い幅広い部位４０とを有する。第４凹部分３７と両側壁１３，１４との間に残差が生じ、両側壁１３，１４が第４凹部分３７に対する障壁となっている。第４凹部分３７と第５凹部分３８との間に残差が生じ、第４凹部分３７が第５凹部分３７に対する障壁となっている。   The depth of the fifth recessed portion 38 (the recessed size of the fifth recessed portion 38 from the outer surface to the inner surface of the side walls 13, 14) is deeper than that of the fourth recessed portion 37. The fifth recessed portion 38 is connected to the second recessed portion 32 and is narrower than the narrow portion 39 having a narrow width in the front-rear direction and the narrow portion 39 connected to the narrow portion 39 and wider in the front-rear direction. With a wide area 40. A residual is generated between the fourth recessed portion 37 and the side walls 13 and 14, and the both side walls 13 and 14 serve as a barrier to the fourth recessed portion 37. A residual is generated between the fourth concave portion 37 and the fifth concave portion 38, and the fourth concave portion 37 is a barrier to the fifth concave portion 37.

シャッタ部材１７は、図６に示すように、略矩形の底板４１と、底板４１の両側縁から上方へ延びる両側板４２と、両側板４２の間に位置して底板４１の前端縁から上方へ延びる連結板４３と、連結板４３につながって底板４１から上方へ延びるシャッタ板４４とを有する。シャッタ部材１７の底板４１は、前後方向前方（アダプタ１０Ａの開口両端部１９，２０の側）に位置する第１嵌合部４５と、前後方向後方（アダプタ１０Ａの中央部２１の側）に位置する第２嵌合部４６と、第１および第２嵌合部４５，４６の間に位置する段差嵌合部４７とを有する。   As shown in FIG. 6, the shutter member 17 is located between the substantially rectangular bottom plate 41, both side plates 42 extending upward from both side edges of the bottom plate 41, and both side plates 42, and upward from the front end edge of the bottom plate 41. The connecting plate 43 extends, and the shutter plate 44 is connected to the connecting plate 43 and extends upward from the bottom plate 41. The bottom plate 41 of the shutter member 17 is positioned at the front side in the front-rear direction (on the both ends 19 and 20 of the adapter 10A) and the rear side in the front-rear direction (on the center part 21 side of the adapter 10A). And a step fitting portion 47 located between the first and second fitting portions 45 and 46.

底板４１の第１嵌合部４５は、その平面形状が底壁１２の第１凹部分３１の形状と略同形同大であり、第２嵌合部４６は、その平面形状が底壁１２の第２凹部分３２の形状と略同形同大である。段差嵌合部４７は、その平面形状が底壁１２の段差部分３４の形状と略同形同大である。シャッタ部材１７の両側板４２は、その平面形状が両側壁１３，１４の第５凹部分３８の形状と略同形同大である。両側板４２は、底板４１につながって前後方向の幅寸法が狭い幅狭い部分４８と、幅狭い部分４８につながって前後方向の幅寸法が幅狭い部分４８のそれよりも広い幅広い部分４９とを有する。幅狭い部分４８は、その平面形状が第５凹部分３８の幅狭い部位３９と略同形同大である。幅広い部分４９は、その平面形状が第５凹部分３８の幅広い部位４０と略同形同大である。   The first fitting portion 45 of the bottom plate 41 has a planar shape that is substantially the same shape and size as the first recessed portion 31 of the bottom wall 12, and the second fitting portion 46 has a planar shape that is the bottom wall 12. The shape of the second concave portion 32 is approximately the same shape and size. The step fitting portion 47 has a planar shape substantially the same shape and size as the shape of the step portion 34 of the bottom wall 12. The both side plates 42 of the shutter member 17 have a planar shape that is substantially the same shape and size as the shape of the fifth concave portions 38 of the side walls 13 and 14. The side plates 42 are connected to the bottom plate 41 and include a narrow portion 48 having a narrow width dimension in the front-rear direction, and a wide portion 49 connected to the narrow portion 48 and wider than that of the portion 48 having a narrow width dimension in the front-rear direction. Have. The narrow portion 48 has a planar shape substantially the same shape and size as the narrow portion 39 of the fifth concave portion 38. The wide portion 49 has a planar shape substantially the same shape and size as the wide portion 40 of the fifth concave portion 38.

シャッタ板４４は、連結板４３の側を基端として弾性変形可能である。シャッタ板４４は、その基端に位置して連結板４３につながる固定部５０と、その延出端に位置する折曲部５１と、固定部５０と折曲部５１との間に位置する湾曲部５２とを有する。折曲部５１は、挿入孔１５の中央部２１に向かって所定角度で折れ曲がっている。湾曲部５２は、所定の曲率半径を有して挿入孔１５の中央部２１に向かって凸となるように円弧を画いている。   The shutter plate 44 is elastically deformable with the connecting plate 43 side as a base end. The shutter plate 44 is located at the base end thereof and is connected to the connecting plate 43, the bent portion 51 located at the extended end, and the curved portion located between the fixed portion 50 and the bent portion 51. Part 52. The bent portion 51 is bent at a predetermined angle toward the central portion 21 of the insertion hole 15. The curved portion 52 has a predetermined radius of curvature and forms a circular arc so as to protrude toward the central portion 21 of the insertion hole 15.

シャッタ部材１７は、図１に示すように、挿入孔１５の開口両端部１９，２０に着脱可能に固定されている。シャッタ部材１７の底板４１の第１嵌合部４５は、底壁１２の第１凹部分３１に嵌め込まれ、凹部分３１の全体に嵌合かつ密着している。第１嵌合部４５が第１凹部分３１に嵌め込まれた状態では、第１嵌合部３１の外面と底壁１２の外面とが略同一平面になっている。シャッタ部材１７の底板４１の第２嵌合部４６は、底壁１２の第２凹部分３２に嵌め込まれ、凹部分３２の全体に嵌合かつ密着している。第２嵌合部４６が第２凹部分３２に嵌め込まれた状態では、第２嵌合部４６の外面と底壁１２の第３凹部分３３とが略同一平面になっている。シャッタ部材１７の底板４１の段差嵌合部４７は、底壁１２の段差部分３４に嵌合かつ密着している。   As shown in FIG. 1, the shutter member 17 is detachably fixed to both opening end portions 19 and 20 of the insertion hole 15. The first fitting portion 45 of the bottom plate 41 of the shutter member 17 is fitted into the first concave portion 31 of the bottom wall 12, and is fitted and adhered to the entire concave portion 31. In a state where the first fitting portion 45 is fitted in the first recess portion 31, the outer surface of the first fitting portion 31 and the outer surface of the bottom wall 12 are substantially flush with each other. The second fitting portion 46 of the bottom plate 41 of the shutter member 17 is fitted into the second concave portion 32 of the bottom wall 12 and is fitted and in close contact with the entire concave portion 32. In a state where the second fitting portion 46 is fitted in the second recessed portion 32, the outer surface of the second fitting portion 46 and the third recessed portion 33 of the bottom wall 12 are substantially in the same plane. The step fitting portion 47 of the bottom plate 41 of the shutter member 17 is fitted and in close contact with the step portion 34 of the bottom wall 12.

シャッタ部材１７の両側板４２は、両側壁１３，１４の第５凹部分３８に嵌め込まれ、凹部分３８に嵌合かつ密着している。両側板４２が第５凹部分３８に嵌め込まれた状態では、両側板４２の外面と第４凹部分３７の外面とが略同一平面になっている。両側板４２の幅狭い部分４８は、第５凹部分３８の幅狭い部位３９に嵌め込まれ、部位３９の全体に嵌合かつ密着し、両側板４２の狭い幅広い部分４９は、第５凹部分３８の幅広い部位４０に嵌め込まれ、部位４０に嵌合かつ密着している。   Both side plates 42 of the shutter member 17 are fitted into the fifth concave portions 38 of the both side walls 13, 14, and are fitted and in close contact with the concave portions 38. In a state where the both side plates 42 are fitted into the fifth recessed portion 38, the outer surface of the both side plates 42 and the outer surface of the fourth recessed portion 37 are substantially flush. The narrow portion 48 of the side plates 42 is fitted into the narrow portion 39 of the fifth concave portion 38 and fits and closely contacts the entire portion 39, and the narrow wide portion 49 of the side plates 42 is the fifth concave portion 38. Are fitted into and closely attached to the portion 40.

シャッタ部材１７の連結板４３は、底壁端面２９の端面凹部３０に嵌合かつ密着している。シャッタ部材１７のシャッタ板４４のうちの折曲部５１と湾曲部５２とは、挿入孔１５の開口両端部１９，２０に位置して挿入孔１５を遮蔽している。シャッタ部材１７では、底板４１の第１嵌合部４５とシャッタ板４４の固定部５０とがアダプタ１０Ａの底壁１２の内外面を挟み込んでいる。   The connecting plate 43 of the shutter member 17 is fitted and in close contact with the end surface recess 30 of the bottom wall end surface 29. The bent portion 51 and the curved portion 52 of the shutter plate 44 of the shutter member 17 are located at both opening end portions 19 and 20 of the insertion hole 15 and shield the insertion hole 15. In the shutter member 17, the first fitting portion 45 of the bottom plate 41 and the fixing portion 50 of the shutter plate 44 sandwich the inner and outer surfaces of the bottom wall 12 of the adapter 10A.

ストッパー部材１８は、図７に示すように、略矩形の底板５３と、底板５３の両側縁から上方へ延びる両側板５４と、両側壁５４に形成されて横方向外方へ末広がりに傾斜して延びる係止板５５とを有する。ストッパー部材１８の底板５３は、その平面形状が底壁１２の第２凹部分３２と第３凹部分３３とを合わせた形状と略同形同大である。ストッパー部材１８の両側板５４は、その平面形状が両側壁１３，１４の第４凹部分３７と第５凹部分３８とを合わせた形状と略同形同大である。   As shown in FIG. 7, the stopper member 18 is formed on the substantially rectangular bottom plate 53, both side plates 54 extending upward from both side edges of the bottom plate 53, and both side walls 54, and is inclined to spread outward in the lateral direction. And a locking plate 55 that extends. The bottom plate 53 of the stopper member 18 has a planar shape that is substantially the same shape and size as the combined shape of the second concave portion 32 and the third concave portion 33 of the bottom wall 12. Both side plates 54 of the stopper member 18 have a planar shape that is substantially the same shape and size as the combined shape of the fourth concave portion 37 and the fifth concave portion 38 of the side walls 13, 14.

ストッパー部材１８は、シャッタ部材１７の上に重なった状態で、アダプタ１０Ａの一方の開口端部２０（端部）に着脱可能に固定されている。ストッパー部材１８の底板５３は、シャッタ部材１７の底板４１の第２嵌合部４６の上に重なった状態で、底壁１２の第３凹部分３３に嵌め込まれ、凹部分３３の全体に嵌合かつ密着している。底板５３が第３凹部分３３に嵌め込まれた状態では、底板５３の外面と底壁１２の外面とが略同一平面になっている。ストッパー部材１８の両側板５４は、シャッタ部材１７の両側板４２の上に重なった状態で、両側壁１３，１４の第４凹部分３７に嵌め込まれ、凹部分３７の全体に嵌合かつ密着している。両側板５４が第４凹部分３７に嵌め込まれた状態では、両側板５４の外面と両側壁１３，１４の外面とが略同一平面になっている。   The stopper member 18 is detachably fixed to one opening end portion 20 (end portion) of the adapter 10 </ b> A in a state where the stopper member 18 overlaps the shutter member 17. The bottom plate 53 of the stopper member 18 is fitted into the third recessed portion 33 of the bottom wall 12 in a state where it overlaps the second fitting portion 46 of the bottom plate 41 of the shutter member 17, and is fitted to the entire recessed portion 33. And it is in close contact. In a state where the bottom plate 53 is fitted in the third recessed portion 33, the outer surface of the bottom plate 53 and the outer surface of the bottom wall 12 are substantially flush with each other. The both side plates 54 of the stopper member 18 are fitted into the fourth concave portions 37 of the side walls 13 and 14 in a state where they overlap the both side plates 42 of the shutter member 17, and are fitted and adhered to the entire concave portion 37. ing. In a state where both side plates 54 are fitted in the fourth concave portion 37, the outer surface of both side plates 54 and the outer surfaces of both side walls 13, 14 are substantially in the same plane.

図９は、光通信用アダプタ１０Ａの挿入孔１５の開口端部１９に対する光ファイバ接続用コネクタ５８の挿入過程を示す図８と同様の矢視断面図であり、図１０は、光通信用アダプタ１０Ａの挿入孔１５の開口両端部１９，２０に光ファイバ接続用コネクタ５８を挿入した後の図８と同様の矢視断面図である。図９では、他方の開口端部２０の図示を省略している。アダプタ１０Ａは、図示はしていないが、ストッパー部材１８の係止板５５を利用して光通信に使用する取り付けパネルや各種装置、各種機器の所定の箇所に取り付けられる。   9 is a cross-sectional view similar to FIG. 8 showing the process of inserting the optical fiber connector 58 into the opening end 19 of the insertion hole 15 of the optical communication adapter 10A. FIG. FIG. 9 is a cross-sectional view similar to FIG. 8 after inserting an optical fiber connecting connector 58 into both open ends 19 and 20 of the insertion hole 15 of 10A. In FIG. 9, the other opening end 20 is not shown. Although not shown, the adapter 10 </ b> A is attached to a predetermined portion of an attachment panel, various devices, or various devices used for optical communication using the locking plate 55 of the stopper member 18.

光ファイバ接続用コネクタ５８は、図９，１０に示すように、光ファイバ５９を固定する鞘部材６０と、アダプタ１０Ａの係合部２２，２３に着脱可能に係合する係合部材６１とから形成されている。コネクタ５８の先端からは、フェルール６２の一部が露出している。鞘部材６０は、合成樹脂から作られて可撓性を有し、光ファイバ５９の外周面全域を包被している。係合部材６１は、合成樹脂から作られた弾性変形可能な摘み部６３と、合成樹脂から作られた弾性変形可能な係合部６４とを有する。   As shown in FIGS. 9 and 10, the optical fiber connector 58 includes a sheath member 60 that fixes the optical fiber 59 and an engaging member 61 that removably engages with the engaging portions 22 and 23 of the adapter 10A. Is formed. A part of the ferrule 62 is exposed from the tip of the connector 58. The sheath member 60 is made of synthetic resin, has flexibility, and covers the entire outer peripheral surface of the optical fiber 59. The engaging member 61 has an elastically deformable knob 63 made of synthetic resin and an elastically deformable engaging portion 64 made of synthetic resin.

摘み部６３は、鞘部材６０の中央に位置して鞘部材６０の外面に固定された基端部分６５と、基端部分６５から上下方向上方へ傾斜して前後方向へ延びる自由部分６６とを有する。係合部６４は、鞘部材６０の前端に位置して鞘部材６０の外面に固定された基端部分６７と、基端部分６７から上下方向上方へ傾斜して前後方向へ延びる自由部分６８とを有する。係合部６４の自由部分６８は、その延出端が摘み部６３の自由部分６６の延出端の下に重なっている。係合部６４の自由部分６８の横方向両側には、横方向外方へ凸となる係入突起６９が形成されている。   The knob 63 includes a base end portion 65 that is located at the center of the sheath member 60 and is fixed to the outer surface of the sheath member 60, and a free portion 66 that is inclined upward and downward from the base end portion 65 and extends in the front-rear direction. Have. The engaging portion 64 is located at the front end of the sheath member 60 and is fixed to the outer surface of the sheath member 60, and a free portion 68 that is inclined upward and downward from the base end portion 67 and extends in the front-rear direction. Have The free part 68 of the engaging part 64 has an extended end overlapping the extended end of the free part 66 of the knob part 63. Engaging protrusions 69 that protrude outward in the lateral direction are formed on both lateral sides of the free portion 68 of the engaging portion 64.

コネクタ５８では、摘み部６３を上下方向下方へ押圧すると、摘み部６３がその基端部分６５を旋回軸としてその自由部分６６が上下方向下方へ旋回するとともに、自由部分６６の旋回に伴って、係合部６４がその基端部分６７を旋回軸としてその自由部分６８が上下方向下方へ旋回し、係入突起６９が上下方向下方へ移動する。   In the connector 58, when the knob portion 63 is pressed downward in the vertical direction, the knob portion 63 pivots downward in the vertical direction with the base end portion 65 as a pivot axis, and with the pivot of the free portion 66, The engaging portion 64 has its free end portion 68 pivoted downward in the vertical direction with the base end portion 67 as the pivot axis, and the engaging projection 69 moves downward in the vertical direction.

光ファイバ接続用コネクタ５８を光通信アダプタ１０Ａの挿入孔１５の開口両端部１９，２０に挿入していない状態では、図８に示すように、シャッタ部材１７のシャッタ板４４（折曲部５１および湾曲部５２）が上下方向上方へ起立して開口両端部１９，２０を塞いでいる。図９に矢印Ｘ１で示すように、コネクタ５８をアダプタ１０Ａの挿入孔１４の開口端部１９に押し込むと、コネクタ５８の鞘部材６０が開口端部１９のうちの第１フランジ２４の下方に開口する端部１９に次第に進入するとともに、コネクタ５８の係合部材６１の係合部６４が第１および第２フランジ２４，２５の間の案内溝２６に次第に進入する。   In a state where the optical fiber connector 58 is not inserted into the opening ends 19 and 20 of the insertion hole 15 of the optical communication adapter 10A, as shown in FIG. 8, the shutter plate 44 (the bent portion 51 and the bent portion 51 and the shutter plate 17). A curved portion 52) stands up in the up-down direction and closes both ends 19 and 20 of the opening. 9, when the connector 58 is pushed into the opening end 19 of the insertion hole 14 of the adapter 10 </ b> A, the sheath member 60 of the connector 58 opens below the first flange 24 in the opening end 19. The engaging portion 64 of the engaging member 61 of the connector 58 gradually enters the guide groove 26 between the first and second flanges 24 and 25.

鞘部材６０が開口端部１９に進入すると、鞘部材６０の下端縁がシャッタ板４４の湾曲部５２に当接し、鞘部材６０の下端縁が湾曲部５２を挿入孔１５の中央部２１に向かって押圧する（前後方向後方へ押圧する）。また、コネクタ５８の係合部材６１の係合部６４が案内溝２６に次第に進入すると、係合部６４が第２フランジ２５に当接かつ摺動し、第２フランジ２５が係合部６４を上下方向下方へ向かって押圧する。   When the sheath member 60 enters the open end portion 19, the lower end edge of the sheath member 60 abuts on the curved portion 52 of the shutter plate 44, and the lower end edge of the sheath member 60 moves the curved portion 52 toward the central portion 21 of the insertion hole 15. And press (press backward in the front-rear direction). When the engaging portion 64 of the engaging member 61 of the connector 58 gradually enters the guide groove 26, the engaging portion 64 contacts and slides on the second flange 25, and the second flange 25 moves the engaging portion 64. Press downward in the vertical direction.

鞘部材６０が湾曲部５２を押圧すると、図９に矢印Ｘ２で示すように、鞘部材６０がシャッタ板４４の湾曲部５２の弾性力に抗して湾曲部５２を弾性変形させる。湾曲部５２は、弾性変形しつつ挿入孔１５の中央部２１に向かって次第に倒れる。第２フランジ２５が係合部６４を押圧すると、第２フランジ２５が係合部６４の弾性力に抗して係合部６４を弾性変形させる。係合部６４は、弾性変形しつつその基端部分６７を旋回軸としてその自由部分６８が上下方向下方へ旋回し、係入突起６９が上下方向下方へ移動する。   When the sheath member 60 presses the curved portion 52, the sheath member 60 elastically deforms the curved portion 52 against the elastic force of the curved portion 52 of the shutter plate 44, as indicated by an arrow X2 in FIG. The bending portion 52 gradually falls toward the central portion 21 of the insertion hole 15 while being elastically deformed. When the second flange 25 presses the engaging portion 64, the second flange 25 elastically deforms the engaging portion 64 against the elastic force of the engaging portion 64. While the engaging portion 64 is elastically deformed, the free portion 68 pivots downward in the vertical direction around the base end portion 67 as a pivot axis, and the engaging protrusion 69 moves downward in the vertical direction.

コネクタ５８をアダプタ１０Ａの挿入孔１５の開口端部１９にさらに押し込むと、係合部６４の自由部分６８が上下方向下方へさらに旋回し、係合部６４の自由部分６８の係入突起６９が頂壁１１の係入開口部２７の位置に来ると、係合部６４の自由部分６８がその弾性力（反発力）によって上下方向上方へ変形するとともに、自由部分６８の係入突起６９が頂壁１１の係入開口部２７に係入する。係入突起６９が係入開口部２７に係入すると、図１０に示すように、コネクタ５８のアダプタ１０Ａの挿入孔１５の開口両端部１９，２０への挿入が完了し、シャッタ板４４の折曲部５１および湾曲部５２が倒れ、折曲部５１および湾曲部５２が収容凹部５６に収容されるとともに、コネクタ５８から露出するフェルール６２がスリーブ１６に収容される。なお、コネクタ５８をアダプタ１０Ａの挿入孔１５の開口両端部１９，２０に挿入すると、スリーブ１６内においてフェルール６２どうしが当接し、光ファイバ５９どうしが光接続される。   When the connector 58 is further pushed into the opening end 19 of the insertion hole 15 of the adapter 10A, the free portion 68 of the engaging portion 64 further pivots downward in the vertical direction, and the engaging protrusion 69 of the free portion 68 of the engaging portion 64 is moved. When it reaches the position of the engaging opening 27 of the top wall 11, the free portion 68 of the engaging portion 64 is deformed upward and downward by its elastic force (repulsive force), and the engaging protrusion 69 of the free portion 68 is the top. It engages with the engaging opening 27 of the wall 11. When the engaging protrusion 69 engages with the engaging opening 27, the insertion of the connector 58 into the opening ends 19 and 20 of the adapter 10 </ b> A of the adapter 10 </ b> A is completed, and the shutter plate 44 is folded. The bending portion 51 and the bending portion 52 are tilted, the bending portion 51 and the bending portion 52 are accommodated in the accommodating recess 56, and the ferrule 62 exposed from the connector 58 is accommodated in the sleeve 16. When the connector 58 is inserted into the opening end portions 19 and 20 of the insertion hole 15 of the adapter 10A, the ferrules 62 come into contact with each other in the sleeve 16 and the optical fibers 59 are optically connected.

コネクタ５８を開口両端部１９，２０から取り外すには、係合部材６１の摘み部６３を上下方向下方へ押圧する。摘み部６３を上下方向下方へ押圧すると、摘み部６３がその基端部分６５を旋回軸としてその自由部分６６が上下方向下方へ旋回するとともに、自由部分６６の旋回に伴って、係合部６４がその基端部分６７を旋回軸としてその自由部分６８が上下方向下方へ旋回し、係入突起６９が上下方向下方へ移動する。係入突起６９が上下方向下方へ移動すると、係入突起６９が係入開口部２７から外れ、その状態でコネクタ５８をアダプタ１０Ａから引き抜く方向へ引っ張る。   In order to remove the connector 58 from the opening both ends 19 and 20, the knob 63 of the engaging member 61 is pressed downward in the vertical direction. When the knob portion 63 is pressed downward in the vertical direction, the knob portion 63 pivots downward in the vertical direction with the base end portion 65 as a pivot axis, and the engaging portion 64 is rotated as the free portion 66 pivots. However, with the base end portion 67 as a pivot axis, the free portion 68 pivots downward in the vertical direction, and the engaging projection 69 moves downward in the vertical direction. When the engaging protrusion 69 moves downward in the vertical direction, the engaging protrusion 69 is detached from the engaging opening 27, and in this state, the connector 58 is pulled in the direction of pulling out from the adapter 10A.

コネクタ５８をアダプタ１０Ａから引き抜く方向へ引っ張ると、コネクタ５８の係合部材６１の係合部６４が案内溝２６を摺動するとともに、鞘部材６０が開口両端部１９，２０を摺動し、鞘部材６０と係合部材６１とが開口両端部１９，２０から次第に引き抜かれる。それに伴ってシャッタ板４４の湾曲部５２がその弾性力（反発力）により、次第に起立し、コネクタ５８をアダプタ１０Ａから完全に抜き取ると、折曲部５１と湾曲部５２とが完全に起立してコネクタ５８を挿入する以前の状態に復帰し、折曲部５１と湾曲部５２とがアダプタ１０Ａの挿入孔１５を遮蔽する。   When the connector 58 is pulled in the direction of pulling out from the adapter 10A, the engaging portion 64 of the engaging member 61 of the connector 58 slides on the guide groove 26, and the sheath member 60 slides on the opening both ends 19 and 20, The member 60 and the engaging member 61 are gradually pulled out from the opening end portions 19 and 20. Accordingly, the curved portion 52 of the shutter plate 44 gradually rises due to its elastic force (repulsive force), and when the connector 58 is completely removed from the adapter 10A, the bent portion 51 and the curved portion 52 are completely raised. The state before the insertion of the connector 58 is restored, and the bent portion 51 and the curved portion 52 shield the insertion hole 15 of the adapter 10A.

光通信用アダプタ１０Ａは、その挿入孔１５の開口両端部１９，２０に光ファイバ接続用コネクタ５８を挿入すると、シャッタ部材１７のシャッタ板４４の折曲部５１および湾曲部５２がコネクタ５８に押圧されて挿入孔１５の中央部２１に向かって倒れるから、シャッタ板４４による遮蔽が解除され、光ファイバ５９どうしを光接続させることができる。また、コネクタ５８を挿入孔１５の開口両端部１９，２０から抜き取ると、シャッタ板４４がその弾性力（反発力）によって起き上がり、挿入孔１５を再び遮蔽するから、アダプタ１０Ａにおける光の漏出を確実に防ぐことができる。   In the optical communication adapter 10 </ b> A, when the optical fiber connection connector 58 is inserted into both ends 19 and 20 of the insertion hole 15, the bent portion 51 and the curved portion 52 of the shutter plate 44 of the shutter member 17 are pressed against the connector 58. Thus, since it falls toward the central portion 21 of the insertion hole 15, the shielding by the shutter plate 44 is released, and the optical fibers 59 can be optically connected. Further, when the connector 58 is pulled out from both ends 19 and 20 of the insertion hole 15, the shutter plate 44 rises due to its elastic force (repulsive force) and shields the insertion hole 15 again, so that light leakage from the adapter 10 </ b> A is ensured. Can be prevented.

アダプタ１０Ａでは、シャッタ部材１７のシャッタ板４４の湾曲部５２の曲率半径が５．０〜７．５の範囲にある。曲率半径が５．０未満では、光ファイバ接続用コネクタ５８を挿入孔１５の開口両端部１９，２０に挿入したときに、シャッタ板４４の湾曲部５２がコネクタ５８のフェルール６２に接触する場合があり、それによってフェルール６２に傷が付く場合がある。曲率半径が７．５を超過すると、シャッタ板４４を利用して挿入孔１５の開口両端部１９，２０を完全に遮蔽することができない場合がある。   In the adapter 10A, the curvature radius of the curved portion 52 of the shutter plate 44 of the shutter member 17 is in the range of 5.0 to 7.5. If the radius of curvature is less than 5.0, the curved portion 52 of the shutter plate 44 may come into contact with the ferrule 62 of the connector 58 when the optical fiber connector 58 is inserted into the opening ends 19 and 20 of the insertion hole 15. In some cases, the ferrule 62 may be damaged. If the radius of curvature exceeds 7.5, it may be impossible to completely shield the opening ends 19 and 20 of the insertion hole 15 using the shutter plate 44.

アダプタ１０Ａは、シャッタ板４４の湾曲部５２の曲率半径が前記範囲にあるから、光ファイバ接続用コネクタ５８を挿入孔１５の開口両端部１９，２０に挿入したときに、シャッタ板４４がコネクタ５８のフェルール６２に接触することなく、シャッタ板４４がフェルール６２に接触することによるフェルール６２の傷付きを防ぐことができる。アダプタ１０Ａは、シャッタ板４４の湾曲部５２が挿入孔１５の中央部２１に向かって前記曲率半径で湾曲しているから、シャッタ板４４の湾曲部５２の弾性力（反発力）が均一に分散してシャッタ板４４の耐久性が向上し、シャッタ板４４が倒れ込みと起き上がりとを繰り返したとしても、シャッタ板４４の弾性力が低下することはなく、繰り返しの使用においてシャッタ板４４を利用して挿入孔１５を確実に遮蔽することができる。   In the adapter 10A, since the radius of curvature of the curved portion 52 of the shutter plate 44 is in the above range, the shutter plate 44 is connected to the connector 58 when the optical fiber connection connector 58 is inserted into the opening ends 19 and 20 of the insertion hole 15. It is possible to prevent the ferrule 62 from being damaged due to the shutter plate 44 coming into contact with the ferrule 62 without contacting the ferrule 62. In the adapter 10A, since the curved portion 52 of the shutter plate 44 is curved toward the central portion 21 of the insertion hole 15 with the radius of curvature, the elastic force (repulsive force) of the curved portion 52 of the shutter plate 44 is uniformly dispersed. Thus, even if the durability of the shutter plate 44 is improved and the shutter plate 44 repeatedly falls and rises, the elastic force of the shutter plate 44 does not decrease, and the shutter plate 44 is used in repeated use. The insertion hole 15 can be reliably shielded.

アダプタ１０Ａでは、シャッタ部材１７の厚み寸法が０．０１〜０．１ｍｍの範囲、好ましくは、０．０２〜０．０６ｍｍの範囲、より好ましくは、０．０３〜０．０３５ｍｍの範囲にある。また。シャッタ板４４の湾曲部５２の弾性反発力が０．１〜０．６Ｎの範囲、好ましくは、０．２〜０．４Ｎの範囲にある。シャッタ部材１７の厚み寸法が０．１ｍｍを超過すると、シャッタ板４４の湾曲部５２の弾性反発力が必要以上に高くなり、湾曲部５２が倒れ難く、コネクタ５８をアダプタ１０Ａの挿入孔１５の開口両端部１９，２０に円滑に挿入することができない場合がある。シャッタ部材１７の厚み寸法が０．０１ｍｍ未満では、シャッタ部材１７の強度が低下し、シャッタ板４４が倒れ込みと起き上がりとを繰り返したときに、シャッタ板４４の湾曲部５２の弾性力が早期に低下する場合があり、シャッタ板４４を利用して挿入孔１５を遮蔽することができない場合がある。   In the adapter 10A, the thickness dimension of the shutter member 17 is in the range of 0.01 to 0.1 mm, preferably in the range of 0.02 to 0.06 mm, and more preferably in the range of 0.03 to 0.035 mm. Also. The elastic repulsive force of the curved portion 52 of the shutter plate 44 is in the range of 0.1 to 0.6N, preferably in the range of 0.2 to 0.4N. If the thickness dimension of the shutter member 17 exceeds 0.1 mm, the elastic repulsion force of the curved portion 52 of the shutter plate 44 becomes higher than necessary, the curved portion 52 is difficult to fall, and the connector 58 is opened to the insertion hole 15 of the adapter 10A. In some cases, the two ends 19 and 20 cannot be smoothly inserted. When the thickness dimension of the shutter member 17 is less than 0.01 mm, the strength of the shutter member 17 decreases, and the elastic force of the curved portion 52 of the shutter plate 44 decreases early when the shutter plate 44 repeatedly falls and rises. In some cases, the insertion hole 15 may not be shielded using the shutter plate 44.

シャッタ板４４の湾曲部５２の弾性反発力が０．６Ｎを超過すると、湾曲部５２が倒れ難くなり、コネクタ５８をアダプタ１０Ａの挿入孔１５の開口両端部１９，２０に円滑に挿入することができない場合がある。シャッタ板４４の湾曲部５２の弾性反発力が０．１Ｎ未満では、シャッタ板４４が倒れ込みと起き上がりとを繰り返したときに、シャッタ板４４の湾曲部５２の弾性力が早期に低下する場合があり、シャッタ板４４を利用して挿入孔１５を遮蔽することができない場合がある。   When the elastic repulsion force of the curved portion 52 of the shutter plate 44 exceeds 0.6 N, the curved portion 52 is unlikely to fall down, and the connector 58 can be smoothly inserted into the opening end portions 19 and 20 of the insertion hole 15 of the adapter 10A. There are cases where it is not possible. If the elastic repulsion force of the curved portion 52 of the shutter plate 44 is less than 0.1 N, the elastic force of the curved portion 52 of the shutter plate 44 may decrease early when the shutter plate 44 repeatedly falls and rises. In some cases, the insertion hole 15 cannot be shielded using the shutter plate 44.

アダプタ１０Ａは、シャッタ部材１７の厚み寸法が前記範囲にあるから、プレス成形加工によって同形同大のシャッタ部材１７を短時間に大量に製作することができ、低い製作コストでシャッタ部材１７を製作することができる。その結果、アダプタ１０Ａ自体を低い単価で作ることができる。また、コネクタ５８をアダプタ１０Ａの挿入孔１５の開口両端部１９，２０に円滑に挿入することができ、シャッタ板４４が倒れ込みと起き上がりとを繰り返したとしても、シャッタ板４４の湾曲部５２の弾性力が低下することはなく、シャッタ板４４を利用して挿入孔１５を確実に遮蔽することができる。   In the adapter 10A, since the thickness dimension of the shutter member 17 is in the above range, the shutter member 17 having the same shape and the same size can be manufactured in a short time by press molding, and the shutter member 17 can be manufactured at a low manufacturing cost. can do. As a result, the adapter 10A itself can be made at a low unit price. In addition, the connector 58 can be smoothly inserted into the opening end portions 19 and 20 of the insertion hole 15 of the adapter 10A, and even if the shutter plate 44 repeatedly falls and rises, the elasticity of the curved portion 52 of the shutter plate 44 is increased. The force does not decrease, and the insertion hole 15 can be reliably shielded using the shutter plate 44.

アダプタ１０Ａは、シャッタ板４４の弾性反発力が前記範囲にあるから、その挿入孔１５に光ファイバ接続用コネクタ５８を挿入したときに、シャッタ部材１７のシャッタ板４４が挿入孔１５の中央部２１に向かって確実に倒れるから、シャッタ板４４による遮蔽を確実に解除することができる。また、コネクタ５８を挿入孔１５の開口両端部１９，２０から抜き取ったときに、シャッタ板４４の湾曲部５２がその弾性力（反発力）によって確実に起き上がるから、挿入孔１５を確実に遮蔽することができる。   The adapter 10 </ b> A has the elastic repulsive force of the shutter plate 44 within the above range, so that when the optical fiber connection connector 58 is inserted into the insertion hole 15, the shutter plate 44 of the shutter member 17 is in the central portion 21 of the insertion hole 15. Therefore, the shielding by the shutter plate 44 can be reliably released. Further, when the connector 58 is pulled out from the opening both ends 19 and 20 of the insertion hole 15, the curved portion 52 of the shutter plate 44 is surely raised by its elastic force (repulsive force), so that the insertion hole 15 is reliably shielded. be able to.

アダプタ１０Ａは、シャッタ部材１７が底板４１と底板４１の両側縁から上方へ延びる両側板４２と底板４１の前端縁から上方へ延びる連結板４３と連結板につながって所定の曲率半径で湾曲するシャッタ板４４とから作られるから、シャッタ部材１７の部品点数が少なく、それをプレス成形加工によって製作する場合であっても、加工の難易度が低く、プレス成形加工によって同形同大のシャッタ部材１７を短時間に大量に製作することができる。アダプタ１０Ａは、低い製作コストでシャッタ部材１７を製作することができるから、アダプタ１０Ａ自体を低い単価で作ることができる。アダプタ１０Ａは、シャッタ部材１７の底板４１をアダプタ１０Ａの底壁１２の外面に形成された底凹部２８に嵌合させ、シャッタ部材１７の両側板４２を両側壁１３，１４の外面に形成された両側凹部３６に嵌合させることで、シャッタ部材１７をアダプタ１０Ａに簡単に取り付けることができるから、シャッタ部材１７のアダプタ１０Ａに対する取り付けが容易であり、アダプタ１０Ａの組み立てに手間や時間がかからず、その結果、アダプタ１０Ａ自体を低い単価で作ることができる。また、シャッタ部材１７をアダプタ１０Ａに取り付けた場合、アダプタ１０Ａの外形寸法が大きくなることはなく、アダプタ１０Ａを規格の外形寸法に納めることができる。   The adapter 10A is a shutter in which the shutter member 17 is connected to the bottom plate 41, both side plates 42 extending upward from both side edges of the bottom plate 41, the connecting plate 43 extending upward from the front end edge of the bottom plate 41, and the connecting plate, and curved with a predetermined curvature radius. Since it is made from the plate 44, the number of parts of the shutter member 17 is small, and even when it is manufactured by press molding, the difficulty of processing is low, and the shutter member 17 having the same shape and the same size is formed by press molding. Can be produced in large quantities in a short time. Since the adapter 10A can manufacture the shutter member 17 at a low manufacturing cost, the adapter 10A itself can be manufactured at a low unit price. In the adapter 10A, the bottom plate 41 of the shutter member 17 is fitted into the bottom recess 28 formed on the outer surface of the bottom wall 12 of the adapter 10A, and both side plates 42 of the shutter member 17 are formed on the outer surfaces of the side walls 13 and 14. Since the shutter member 17 can be easily attached to the adapter 10A by being fitted to the concave portions 36 on both sides, the shutter member 17 can be easily attached to the adapter 10A, and the adapter 10A does not take time and effort to assemble. As a result, the adapter 10A itself can be made at a low unit price. Further, when the shutter member 17 is attached to the adapter 10A, the outer dimension of the adapter 10A does not increase, and the adapter 10A can be accommodated in the standard outer dimension.

アダプタ１０Ａは、底板４１の第１嵌合部４５が第１凹部分３１に嵌合し、底板４１の第２嵌合部４６が第２底凹部３２に嵌合するとともに、底板４１の段差嵌合部４７が段差部分３４に嵌合するから、シャッタ部材１７がアダプタ１０Ａに確実に固定され、シャッタ部材１７のずれ動きやシャッタ部材１７のアダプタ１０Ａからの抜脱を防ぐことができ、シャッタ部材１７を利用して挿入孔１５を確実に遮蔽することができる。このアダプタ１０Ａは、シャッタ部材１７の底板４１に形成された段差嵌合部４７がリブとして機能するから、底板４１の捩れや折れ曲がりを防ぐことができ、底板４１を底壁１２の底凹部２８に確実に密着させることができ、シャッタ部材１７をアダプタ１０Ａに確実に固定することができる。   In the adapter 10A, the first fitting portion 45 of the bottom plate 41 is fitted into the first concave portion 31, the second fitting portion 46 of the bottom plate 41 is fitted into the second bottom concave portion 32, and the step fitting of the bottom plate 41 is performed. Since the joint portion 47 fits into the stepped portion 34, the shutter member 17 is securely fixed to the adapter 10A, so that the shutter member 17 can be prevented from being displaced or detached from the adapter 10A. 17, the insertion hole 15 can be reliably shielded. In this adapter 10 </ b> A, the step fitting portion 47 formed on the bottom plate 41 of the shutter member 17 functions as a rib, so that the bottom plate 41 can be prevented from being twisted or bent. The shutter member 17 can be reliably fixed to the adapter 10A.

アダプタ１０Ａは、底板４１とシャッタ板４４の固定部５０とが底壁１２の内外面を挟み込んだ状態となるから、シャッタ部材１７がアダプタ１０Ａに確実に固定され、シャッタ部材１７のずれ動きやシャッタ部材１７のアダプタ１０Ａからの抜脱を防ぐことができ、シャッタ部材１７を利用して挿入孔１５を確実に遮蔽することができる。アダプタ１０Ａは、シャッタ部材１７のシャッタ板４４の折曲部５１が挿入孔１５の中央部２１に向かって所定角度で折れ曲がるから、光ファイバ接続用コネクタ５８を挿入孔の開口両端部１９，２０に挿入したときに、シャッタ板４４の延出端のエッジがコネクタ５８に接触することなく、シャッタ板４４の延出端のエッジがコネクタ５８に接触することによるコネクタ５８の傷付きを防ぐことができる。アダプタ１０Ａは、シャッタ板４４の湾曲部５２が挿入孔１５の中央部２１に向かって凸となるように湾曲するから、湾曲部５２によってシャッタ板４４の弾性力（反発力）が均一に分散してシャッタ板４４の耐久性が向上し、シャッタ板４４が倒れ込みと起き上がりとを繰り返したとしても、シャッタ板４４の弾性力が低下することはなく、繰り返しの使用においてシャッタ板４４を利用して挿入孔１５を確実に遮蔽することができる。   Since the adapter 10A is in a state in which the bottom plate 41 and the fixing portion 50 of the shutter plate 44 sandwich the inner and outer surfaces of the bottom wall 12, the shutter member 17 is securely fixed to the adapter 10A. The member 17 can be prevented from being detached from the adapter 10 </ b> A, and the insertion hole 15 can be reliably shielded using the shutter member 17. In the adapter 10A, the bent portion 51 of the shutter plate 44 of the shutter member 17 is bent at a predetermined angle toward the central portion 21 of the insertion hole 15, so that the optical fiber connector 58 is connected to the opening end portions 19 and 20 of the insertion hole. When inserted, the edge of the extended end of the shutter plate 44 does not contact the connector 58, and the connector 58 can be prevented from being damaged by the edge of the extended end of the shutter plate 44 contacting the connector 58. . Since the adapter 10A is curved so that the curved portion 52 of the shutter plate 44 is convex toward the central portion 21 of the insertion hole 15, the elastic force (repulsive force) of the shutter plate 44 is uniformly dispersed by the curved portion 52. Even if the durability of the shutter plate 44 is improved and the shutter plate 44 repeatedly falls and rises, the elastic force of the shutter plate 44 does not decrease, and the shutter plate 44 is used for repeated use. The hole 15 can be reliably shielded.

図１１は、他の一例として示す光通信用アダプタ１０Ｂの斜視図であり、図１２は、アダプタ１０Ｂの底壁１２を示す底面図である。図１３は、シャッタ部材１７（遮蔽金具）とストッパー部材１８（係止金具）とを取り付ける以前のアダプタ１０Ｂの底壁１２を示す底面図であり、図１４は、他の一例として示すシャッタ部材１７の斜視図である。図１５は、他の一例として示すストッパー部材１８の斜視図である。図１１，１４，１５では、前後方向を矢印Ａ、横方向を矢印Ｂで示し、上下方向を矢印Ｃで示す。   FIG. 11 is a perspective view of an optical communication adapter 10B shown as another example, and FIG. 12 is a bottom view showing the bottom wall 12 of the adapter 10B. 13 is a bottom view showing the bottom wall 12 of the adapter 10B before the shutter member 17 (shielding metal fitting) and the stopper member 18 (locking metal fitting) are attached, and FIG. 14 is a shutter member 17 shown as another example. FIG. FIG. 15 is a perspective view of a stopper member 18 shown as another example. 11, 14, and 15, the front-rear direction is indicated by an arrow A, the horizontal direction is indicated by an arrow B, and the vertical direction is indicated by an arrow C.

この光通信用アダプタ１０Ｂが図１のそれと異なるところは、仕切壁７０を有する点、仕切板７０を挟んで横方向へ並ぶ２つの挿入孔１５を有する点、シャッタ部材１７が底板４１を共有しつつ横方向へ並ぶ２つの連結板４３とシャッタ板４４とを有する点にあり、このアダプタ１０Ｂのその他の構成は図１のアダプタ１０Ａと同一であるから、図１のアダプタ１０Ａと同一の符号を付すとともに、図１のアダプタ１０Ａの説明を援用することで、このアダプタ１０Ｂのその他の構成の詳細な説明は省略する。   The optical communication adapter 10B is different from that of FIG. 1 in that it has a partition wall 70, two insertion holes 15 that are arranged in the lateral direction across the partition plate 70, and the shutter member 17 shares the bottom plate 41. However, the other configuration of the adapter 10B is the same as that of the adapter 10A of FIG. 1, and therefore, the same reference numerals as those of the adapter 10A of FIG. 1 are used. In addition, by using the description of the adapter 10A of FIG. 1, detailed description of other configurations of the adapter 10B is omitted.

アダプタ１０Ｂは、前後方向へ延びる頂底壁１１，１２および両側壁１３，１４と、両側壁１３，１４の間に位置して前後方向へ延びる仕切壁７０と、それら壁１１〜１４，７０に囲繞されて前後方向へ貫通する２つの挿入孔１５と、それら挿入孔１５の中央部２１に設置された２つのスリーブホルダ５９および２つの光接続用割りスリーブ１６と（図８援用）、シャッタ部材１７およびストッパー部材１８とを有する。アダプタ１０Ａの開口両端部１０，２０には、光ファイバ接続用コネクタ５８の係合部材６１（図９援用）が着脱可能に係合する４つの係合部２２，２３が作られている（図８援用）。   The adapter 10 </ b> B includes top and bottom walls 11 and 12 and both side walls 13 and 14 that extend in the front-rear direction, a partition wall 70 that is positioned between the side walls 13 and 14 and extends in the front-rear direction, and the walls 11 to 14, 70. Two insertion holes 15 that are surrounded and penetrated in the front-rear direction, two sleeve holders 59 and two split sleeves 16 for optical connection installed in the central portion 21 of these insertion holes 15 (in FIG. 8), a shutter member 17 and a stopper member 18. The four engaging portions 22 and 23 with which the engaging member 61 (supporting FIG. 9) of the optical fiber connector 58 is detachably engaged are formed on the opening both ends 10 and 20 of the adapter 10A (see FIG. 9). 8 support).

それら係合部２２，２３は、両側壁１３，１４と仕切壁７０とに形成されて開口両端部１９，２０から中央部２１に向かって前後方向へ延びる第１フランジ２４と、頂壁１１および両側壁１３，１４の交差箇所と頂壁１１および仕切壁７０の交差箇所とに形成されて開口両端部１９，２０から中央部２１に向かって前後方向へ延びる第２フランジ２５と、それらフランジ２４，２５の間に位置して前後方向へ延びる案内溝２６と、頂壁１１に形成されてコネクタ５８の係合部材６１の係入突起６９（図９，１０援用）が着脱可能に係入する係入開口部２７とから形成されている。第２フランジ２５は、開口両端部１９，２０から中央部２１に向かって上下方向下方へ傾斜している。   The engaging portions 22, 23 are formed on the side walls 13, 14 and the partition wall 70, and extend from the opening both ends 19, 20 toward the central portion 21 in the front-rear direction, the top wall 11, A second flange 25 formed at the intersection of the side walls 13, 14 and the intersection of the top wall 11 and the partition wall 70 and extending in the front-rear direction from the opening end portions 19, 20 toward the central portion 21, and the flanges 24. , 25 and the guide groove 26 extending in the front-rear direction, and the engaging protrusion 69 (supported in FIGS. 9 and 10) of the engaging member 61 of the connector 58 are detachably engaged. The engaging opening 27 is formed. The second flange 25 is inclined downward in the vertical direction from the opening end portions 19 and 20 toward the central portion 21.

アダプタ１０Ｂの底壁１２の外面には、底壁１２の内面に向かって上下方向へ凹む２つの底凹部２８が形成されている。それら底凹部２８は、中心線Ｌを挟んで対称型に作られている。アダプタ１０Ｂの底壁１２の内面には、底壁１２の外面に向かって上下方向へ凹む４つの収容凹部５６が形成されている（図８援用）。それら収容凹部５６は、中心線Ｌを挟んで対称型に作られている。それら収容凹部５６は、その平面形状がシャッタ部材１７の折曲部５１および湾曲部５２のそれよりもわずかに大きく、折曲部５１および湾曲部５２を収容可能である。アダプタ１０Ｂの底壁１２の両端面２９（端面）には、挿入孔１５の中央部２１に向かって凹む４つの端面凹部３０が形成されている。端面凹部３０は、中心線Ｌを挟んで対称型に作られている。   On the outer surface of the bottom wall 12 of the adapter 10B, two bottom recesses 28 are formed that are recessed in the vertical direction toward the inner surface of the bottom wall 12. These bottom recesses 28 are made symmetrical with respect to the center line L. On the inner surface of the bottom wall 12 of the adapter 10B, four housing recesses 56 that are recessed in the vertical direction toward the outer surface of the bottom wall 12 are formed (see FIG. 8). These accommodating recesses 56 are made symmetrical with respect to the center line L. These accommodating recesses 56 have a slightly larger planar shape than that of the bent portion 51 and the curved portion 52 of the shutter member 17, and can accommodate the bent portion 51 and the curved portion 52. Four end surface recesses 30 that are recessed toward the central portion 21 of the insertion hole 15 are formed on both end surfaces 29 (end surfaces) of the bottom wall 12 of the adapter 10B. The end surface recess 30 is made symmetrical with respect to the center line L.

底凹部２８は、図１３に示すように、挿入孔１５の開口両端部１９，２０の側に位置する第１凹部分３１と、中央部２１の側に位置する第２凹部分３２と、第２凹部分３２の前後方向後方に位置する第３凹部分３３と、第１および第２凹部分３１，３２につながる段差部分３４と、第２および第３凹部分３２，３３につながる段差部分３５とを有する。   As shown in FIG. 13, the bottom concave portion 28 includes a first concave portion 31 located on the opening both ends 19 and 20 side of the insertion hole 15, a second concave portion 32 located on the central portion 21 side, A third recessed portion 33 located behind the two recessed portions 32 in the front-rear direction, a step portion 34 connected to the first and second recessed portions 31, 32, and a step portion 35 connected to the second and third recessed portions 32, 33. And have.

第１凹部分３１では、その横方向両端縁が底壁１２の内側に位置し、第１凹部分３１の横方向両端縁と底壁１２との間に段差が生じている。第２凹部分３２は、その深さ寸法が第１凹部分３１のそれよりも深く、第３凹部分３３のそれよりも深い。第３凹部分３３は、その深さ寸法が第１凹部分３１のそれよりも深く、第２凹部分３２のそれよりも浅い。第３凹部分３３と底壁１２との間に残差が生じ、第１凹部分３１と第２凹部分３２との間に残差が生じているとともに、第３凹部分３３と第２凹部分３２との間に残差が生じている。   In the first recessed portion 31, both lateral edges thereof are located inside the bottom wall 12, and a step is generated between the lateral both ends of the first recessed portion 31 and the bottom wall 12. The depth of the second recess 32 is deeper than that of the first recess 31 and deeper than that of the third recess 33. The depth of the third recess 33 is deeper than that of the first recess 31 and shallower than that of the second recess 32. A residual is generated between the third concave portion 33 and the bottom wall 12, a residual is generated between the first concave portion 31 and the second concave portion 32, and the third concave portion 33 and the second concave portion are formed. There is a residual between the portion 32.

アダプタ１０Ｂの両側壁１３，１４の外面には、両側壁１３，１４の外面から内面に向かって横方向へ向かって凹む両側凹部３６が形成されている（図４援用）。両側凹部３６は、一方の側壁１３と他方の側壁１４とにおいて同一形状に作られ、中心線Ｌを挟んで対称型に作られている。両側凹部３６は、底壁１２の側に位置して第３凹部分３３につながる第４凹部分３７と、第４凹部分３７の内側に位置して第２凹部分３２につながる第５凹部分３８とを有する（図５援用）。   Both-side recesses 36 are formed on the outer surfaces of the side walls 13 and 14 of the adapter 10B so as to be recessed in the lateral direction from the outer surfaces of the side walls 13 and 14 toward the inner surface (see FIG. 4). Both side recesses 36 are formed in the same shape on one side wall 13 and the other side wall 14, and are formed symmetrically with the center line L in between. The both side recesses 36 are located on the bottom wall 12 side and are connected to the third recess portion 33 and the fourth recess portion 37 is connected to the second recess portion 32 inside the fourth recess portion 37. 38 (incorporated in FIG. 5).

第５凹部分３８は、その深さ寸法が第４凹部分３７のそれよりも深い。第５凹部分３８は、第２凹部分３２につながって前後方向の幅寸法が狭い幅狭い部位３９と、幅狭い部位３９につながる幅広い部位４０とを有する。第４凹部分３７と両側壁１３，１４との間に残差が生じ、第４凹部分３７と第５凹部分３８との間に残差が生じている。   The depth of the fifth concave portion 38 is deeper than that of the fourth concave portion 37. The fifth recessed portion 38 has a narrow portion 39 that is connected to the second recessed portion 32 and has a narrow width dimension in the front-rear direction, and a wide portion 40 that is connected to the narrow portion 39. A residual is generated between the fourth concave portion 37 and the side walls 13 and 14, and a residual is generated between the fourth concave portion 37 and the fifth concave portion 38.

シャッタ部材１７は、図１４に示すように、略矩形の底板４１と、底板４１の両側縁から上方へ延びる両側板４２と、両側板４２の間に位置して底板４１の前端縁から上方へ延びる２つの連結板４３と、それら連結板４３につながって底板４１から上方へ延びる２つのシャッタ板４４とを有する。底板４１は、前後方向前方に位置する第１嵌合部４５と、前後方向後方に位置する第２嵌合部４６と、第１および第２嵌合部４５，４６の間に位置する段差嵌合部４７と、それらシャッタ板４４の間に位置して挿入孔１５の中央部２１に向かって（前後方向後方）凹む凹部７１とを有する。   As shown in FIG. 14, the shutter member 17 is located between the substantially rectangular bottom plate 41, both side plates 42 extending upward from both side edges of the bottom plate 41, and both side plates 42, and upward from the front edge of the bottom plate 41. Two connecting plates 43 extending, and two shutter plates 44 connected to the connecting plates 43 and extending upward from the bottom plate 41 are provided. The bottom plate 41 includes a first fitting portion 45 positioned forward in the front-rear direction, a second fitting portion 46 positioned rearward in the front-rear direction, and a step fit positioned between the first and second fitting portions 45, 46. It has the joint part 47 and the recessed part 71 which is located between these shutter plates 44 and is dented toward the center part 21 of the insertion hole 15 (backward in the front-rear direction).

底板４１の第１嵌合部４５は、その平面形状が底壁１２の第１凹部分３１の形状と略同形同大であり、第２嵌合部４６は、その平面形状が底壁１２の第２凹部分３２の形状と略同形同大である。段差嵌合部４７は、その平面形状が底壁１２の段差部分３４の形状と略同形同大である。シャッタ部材１７の両側板４２は、その平面形状が両側壁１３，１４の第５凹部分３８の形状と略同形同大である。両側板４２は、底板４１につながって前後方向の幅寸法が狭い幅狭い部分４８と、幅狭い部分４８につながる幅広い部分４９とを有する。幅狭い部分４８は、その平面形状が第５凹部分３８の幅狭い部位３９と略同形同大である。幅広い部分４９は、その平面形状が第５凹部分３８の幅広い部位４０と略同形同大である。   The first fitting portion 45 of the bottom plate 41 has a planar shape that is substantially the same shape and size as the first recessed portion 31 of the bottom wall 12, and the second fitting portion 46 has a planar shape that is the bottom wall 12. The shape of the second concave portion 32 is approximately the same shape and size. The step fitting portion 47 has a planar shape substantially the same shape and size as the shape of the step portion 34 of the bottom wall 12. The both side plates 42 of the shutter member 17 have a planar shape that is substantially the same shape and size as the shape of the fifth concave portions 38 of the side walls 13 and 14. Both side plates 42 have a narrow portion 48 that is connected to the bottom plate 41 and has a narrow width dimension in the front-rear direction, and a wide portion 49 that connects to the narrow portion 48. The narrow portion 48 has a planar shape substantially the same shape and size as the narrow portion 39 of the fifth concave portion 38. The wide portion 49 has a planar shape substantially the same shape and size as the wide portion 40 of the fifth concave portion 38.

それらシャッタ板４４は、連結板４３の側を基端として弾性変形可能である。それらシャッタ板４４は、その基端に位置して連結板４３につながる固定部５０と、その延出端に位置して挿入孔１５の中央部２１に向かって所定角度で折れ曲がる折曲部５１と、固定部５０と折曲部５１との間に位置して挿入孔１５の中央部２１に向かって凸となるように円弧を画く湾曲部５２とを有する。   The shutter plates 44 can be elastically deformed with the connecting plate 43 side as a base end. The shutter plate 44 includes a fixed portion 50 that is located at the base end and is connected to the connecting plate 43, and a bent portion 51 that is located at the extended end and bends at a predetermined angle toward the central portion 21 of the insertion hole 15. And a curved portion 52 which is located between the fixed portion 50 and the bent portion 51 and forms an arc so as to protrude toward the central portion 21 of the insertion hole 15.

シャッタ部材１７は、図１１に示すように、挿入孔１５の開口両端部１９，２０に着脱可能に固定されている。シャッタ部材１７の底板４１の第１嵌合部４５は、底壁１２の第１凹部分３１に嵌め込まれ、凹部分３１の全体に嵌合かつ密着している。シャッタ部材１７の底板４１の第２嵌合部４６は、底壁１２の第２凹部分３２に嵌め込まれ、凹部分３２の全体に嵌合かつ密着している。シャッタ部材１７の底板４１の段差嵌合部４７は、底壁１２の段差部分３４に嵌合かつ密着している。   As shown in FIG. 11, the shutter member 17 is detachably fixed to both opening end portions 19 and 20 of the insertion hole 15. The first fitting portion 45 of the bottom plate 41 of the shutter member 17 is fitted into the first concave portion 31 of the bottom wall 12, and is fitted and adhered to the entire concave portion 31. The second fitting portion 46 of the bottom plate 41 of the shutter member 17 is fitted into the second concave portion 32 of the bottom wall 12 and is fitted and in close contact with the entire concave portion 32. The step fitting portion 47 of the bottom plate 41 of the shutter member 17 is fitted and in close contact with the step portion 34 of the bottom wall 12.

シャッタ部材１７の両側板４２は、両側壁１３，１４の第５凹部分３８に嵌め込まれ、凹部分３８に嵌合かつ密着している。両側板４２の幅狭い部分４８は、第５凹部分３８の幅狭い部位３９に嵌め込まれ、部位３９の全体に嵌合かつ密着し、両側板４２の狭い幅広い部分４９は、第５凹部分３８の幅広い部位４０に嵌め込まれ、部位４０に嵌合かつ密着している。シャッタ部材１７の連結板４３は、底壁端面２９の端面凹部３０に嵌合かつ密着している。シャッタ部材１７のシャッタ板４４のうちの折曲部５１と湾曲部５２とは、挿入孔１５の開口両端部１９，２０に位置して挿入孔１５を遮蔽している。シャッタ部材１７では、底板４１の第１嵌合部４５とシャッタ板４４の固定部５０とがアダプタ１０Ｂの底壁１２の内外面を挟み込んでいる。   Both side plates 42 of the shutter member 17 are fitted into the fifth concave portions 38 of the both side walls 13, 14, and are fitted and in close contact with the concave portions 38. The narrow portion 48 of the side plates 42 is fitted into the narrow portion 39 of the fifth concave portion 38 and fits and closely contacts the entire portion 39, and the narrow wide portion 49 of the side plates 42 is the fifth concave portion 38. Are fitted into and closely attached to the portion 40. The connecting plate 43 of the shutter member 17 is fitted and in close contact with the end surface recess 30 of the bottom wall end surface 29. The bent portion 51 and the curved portion 52 of the shutter plate 44 of the shutter member 17 are located at both opening end portions 19 and 20 of the insertion hole 15 and shield the insertion hole 15. In the shutter member 17, the first fitting portion 45 of the bottom plate 41 and the fixing portion 50 of the shutter plate 44 sandwich the inner and outer surfaces of the bottom wall 12 of the adapter 10B.

ストッパー部材１８は、図１５に示すように、略矩形の底板５３と、底板５３の両側縁から上方へ延びる両側板５４と、両側壁５４に形成されて横方向外方へ末広がりに傾斜して延びる係止板５５とを有する。ストッパー部材１８の底板５３は、その平面形状が底壁１２の第２凹部分３２と第３凹部分３３とを合わせた形状と略同形同大である。ストッパー部材１８の両側板５４は、その平面形状が両側壁１３，１４の第４凹部分３７と第５凹部分３８とを合わせた形状と略同形同大である。   As shown in FIG. 15, the stopper member 18 is formed on a substantially rectangular bottom plate 53, both side plates 54 extending upward from both side edges of the bottom plate 53, and both side walls 54, and inclines so as to spread outward in the lateral direction. And a locking plate 55 that extends. The bottom plate 53 of the stopper member 18 has a planar shape that is substantially the same shape and size as the combined shape of the second concave portion 32 and the third concave portion 33 of the bottom wall 12. Both side plates 54 of the stopper member 18 have a planar shape that is substantially the same shape and size as the combined shape of the fourth concave portion 37 and the fifth concave portion 38 of the side walls 13, 14.

ストッパー部材１８は、シャッタ部材１７の上に重なった状態で、アダプタ１０Ａの一方の開口端部２０に着脱可能に固定されている。ストッパー部材１８の底板５３は、シャッタ部材１７の底板４１の第２嵌合部４６の上に重なった状態で、底壁１２の第３凹部分３３に嵌め込まれ、凹部分３３の全体に嵌合かつ密着している。ストッパー部材１８の両側板５４は、シャッタ部材１７の両側板４２の上に重なった状態で、両側壁１３，１４の第４凹部分３７に嵌め込まれ、凹部分３７の全体に嵌合かつ密着している。   The stopper member 18 is detachably fixed to one opening end 20 of the adapter 10 </ b> A in a state where the stopper member 18 overlaps the shutter member 17. The bottom plate 53 of the stopper member 18 is fitted into the third recessed portion 33 of the bottom wall 12 in a state where it overlaps the second fitting portion 46 of the bottom plate 41 of the shutter member 17, and is fitted to the entire recessed portion 33. And it is in close contact. The both side plates 54 of the stopper member 18 are fitted into the fourth concave portions 37 of the side walls 13 and 14 in a state where they overlap the both side plates 42 of the shutter member 17, and are fitted and adhered to the entire concave portion 37. ing.

アダプタ１０Ｂは、図１のそれと同様に、ストッパー部材１８の係止板５５を利用して光通信に使用する取り付けパネルや各種装置、各種機器の所定の箇所に取り付けられる。アダプタ１０Ｂに光ファイバ接続用コネクタ５８を挿入する手順やアダプタ１０Ｂからコネクタ５８を抜き取る手順は、図１のアダプタ１０Ａのそれらと同一であるから、図９，１０を援用するとともに、図９，１０の説明を援用することで、それらの説明は省略する。なお、コネクタ５８の構成は、図９，１０に図示のそれと同一である。   The adapter 10B is attached to a predetermined position of an attachment panel, various devices, or various devices used for optical communication using the locking plate 55 of the stopper member 18 as in FIG. The procedure for inserting the optical fiber connector 58 into the adapter 10B and the procedure for removing the connector 58 from the adapter 10B are the same as those of the adapter 10A in FIG. 1, so that FIGS. These descriptions are omitted by using the description. The configuration of the connector 58 is the same as that shown in FIGS.

アダプタ１０Ｂにおけるシャッタ部材１７のシャッタ板４４の湾曲部５２の曲率半径は、図１のアダプタ１０Ａのシャッタ部材１７のシャッタ板４４の湾曲部５２のそれと同一である。アダプタ１０Ｂのシャッタ部材１７の厚み寸法は、図１のアダプタ１０Ａのシャッタ部材１７のそれと同一であり、アダプタ１０Ｂにおけるシャッタ板４４の湾曲部５２の弾性反発力は、図１のシャッタ板４４の湾曲部５２のそれと同一である。   The curvature radius of the curved portion 52 of the shutter plate 44 of the shutter member 17 in the adapter 10B is the same as that of the curved portion 52 of the shutter plate 44 of the shutter member 17 of the adapter 10A in FIG. The thickness dimension of the shutter member 17 of the adapter 10B is the same as that of the shutter member 17 of the adapter 10A in FIG. 1, and the elastic repulsive force of the curved portion 52 of the shutter plate 44 in the adapter 10B is the curve of the shutter plate 44 in FIG. It is the same as that of the part 52.

この光通信用アダプタ１０Ｂは、図１のアダプタ１０Ａが有する効果に加え、以下の効果を有する。アダプタ１０Ｂは、２つの光ファイバ接続用コネクタ５８を横方向へ並べた状態でそれらコネクタ５８を挿入孔１５の開口両端部１９，２０に挿入し、それらコネクタ５８を介して光を接続させることができ、一度に複数の線路による光接続を行うことができる。アダプタ１０Ｂは、シャッタ部材１７が底板４１と底板４１の両側縁から上方へ延びる両側板４２と底板４１の前端縁から上方へ延びる２つの連結板４３と連結板４３につながって所定の曲率半径で湾曲する２つのシャッタ板４４とから作られるから、シャッタ部材１７の部品点数が少なく、それをプレス成形加工によって製作する場合であっても、加工の難易度が低く、プレス成形加工によって同形同大のシャッタ部材１７を短時間に大量に製作することができる。アダプタ１０Ｂは、低い製作コストでシャッタ部材１７を製作することができるから、アダプタ１０Ｂ自体を低い単価で作ることができる。   This optical communication adapter 10B has the following effects in addition to the effects of the adapter 10A of FIG. The adapter 10B can insert two connectors 58 into both ends 19 and 20 of the insertion hole 15 in a state where two optical fiber connection connectors 58 are arranged in the lateral direction, and connect light through the connectors 58. It is possible to perform optical connection with a plurality of lines at a time. In the adapter 10B, the shutter member 17 is connected to the bottom plate 41, the both side plates 42 extending upward from both side edges of the bottom plate 41, the two connecting plates 43 extending upward from the front end edge of the bottom plate 41, and the connecting plate 43 with a predetermined radius of curvature. Since it is made of two shutter plates 44 that are curved, the number of parts of the shutter member 17 is small, and even when it is manufactured by press molding, the difficulty of processing is low, and the same shape and shape are reduced by press molding. Large shutter members 17 can be manufactured in large quantities in a short time. Since the adapter 10B can manufacture the shutter member 17 at a low manufacturing cost, the adapter 10B itself can be manufactured at a low unit price.

アダプタ１０Ｂは、光ファイバ接続用コネクタ５８の挿入によってシャッタ部材１７の一方のシャッタ板４４がその弾性力に抗して倒れたとしても、凹部７１によって一方のシャッタ板４４の倒れ込みの力が横方向へ並ぶ他方のシャッタ板４４に伝わることはなく、一方のシャッタ板４４が倒れたとしても、他方のシャッタ板４４がそれに追従して倒れることがなく、他方のシャッタ板４４によって他方の挿入孔１５を確実に遮蔽することができる。   In the adapter 10B, even if one shutter plate 44 of the shutter member 17 falls against the elastic force due to insertion of the optical fiber connector 58, the depression force of the one shutter plate 44 is laterally reduced by the recess 71. The other shutter plate 44 is not transmitted to the other shutter plate 44, and even if one shutter plate 44 falls down, the other shutter plate 44 does not fall down following it, and the other shutter plate 44 causes the other insertion hole 15 to fall. Can be reliably shielded.

なお、図１１のアダプタ１０Ｂでは１つの仕切板７０が設置され、横方向へ２つの挿入孔１５が並んでいるが、仕切板７０の数に特に限定はなく、アダプタ１０Ｂに２つ以上の仕切板７０が設置され、３つ以上の挿入孔１５が横方向へ並んでいてもよい。この場合、シャッタ部材１７には挿入口に数に応じて３つ以上の連結板４３とシャッタ板４４とが形成される。また、図１や図１１のアダプタ１０Ａ，１０Ｂではストッパー部材１８が一方の端部２０に設置されているが、ストッパー部材１８を他方の端部１９のみに設置することもでき、ストッパー部材１８を両端部１９，２０に設置することもできる。   In addition, in the adapter 10B of FIG. 11, the one partition plate 70 is installed and the two insertion holes 15 are arranged in the horizontal direction, but the number of the partition plates 70 is not particularly limited, and the adapter 10B has two or more partitions. The plate 70 may be installed, and three or more insertion holes 15 may be arranged in the lateral direction. In this case, three or more connecting plates 43 and shutter plates 44 are formed in the shutter member 17 according to the number of the insertion ports. Further, in the adapters 10A and 10B shown in FIGS. 1 and 11, the stopper member 18 is installed at one end portion 20. However, the stopper member 18 can be installed only at the other end portion 19, and the stopper member 18 is provided with the stopper member 18. It can also be installed at both ends 19 and 20.

１０Ａ 光通信用アダプタ
１０Ｂ 光通信用アダプタ
１１ 頂壁
１２ 底壁
１３ 側壁
１４ 側壁
１５ 挿入孔
１６ 光接続用スリーブ
１７ シャッタ部材
１８ ストッパー部材
１９ 開口端部
２０ 開口端部
２１ 中央部
２８ 底凹部
２９ 両端面
３０ 端面凹部
３１ 第１凹部分
３２ 第２凹部分
３３ 第３凹部分
３４ 段差部分
３６ 両側凹部
３７ 第４凹部分
３８ 第５凹部分
４１ 底板
４２ 両側板
４３ 連結板
４４ シャッタ板
４５ 第１嵌合部
４６ 第２嵌合部
４７ 段差嵌合部
５０ 固定部
５１ 折曲部
５２ 湾曲部
７０ 仕切壁
７１ 凹部

DESCRIPTION OF SYMBOLS 10A Optical communication adapter 10B Optical communication adapter 11 Top wall 12 Bottom wall 13 Side wall 14 Side wall 15 Insertion hole 16 Optical connection sleeve 17 Shutter member 18 Stopper member 19 Open end 20 Open end 21 Central part 28 Bottom recessed part 29 Both ends Surface 30 End surface concave portion 31 First concave portion 32 Second concave portion 33 Third concave portion 34 Step portion 36 Both side concave portion 37 Fourth concave portion 38 Fifth concave portion 41 Bottom plate 42 Both side plates 43 Connecting plate 44 Shutter plate 45 First fitting Joint portion 46 Second fitting portion 47 Step fitting portion 50 Fixed portion 51 Bending portion 52 Bending portion 70 Partition wall 71 Recessed portion

Claims (5)

前後方向へ延びる頂底壁および両側壁と、前記両側壁の間に位置して前記前後方向へ延びる少なくとも１つの仕切壁を含み、それら壁に囲繞されて前記前後方向へ貫通し、前記仕切壁を挟んで横方向へ並び、光ファイバ接続用コネクタが着脱可能に挿入される少なくとも２つの挿入孔と、前記挿入孔の中央部に設置されて前記コネクタのフェルールを支持する光接続用スリーブと、前記挿入孔の端部を開閉可能なシャッタ部材とを有する光通信用アダプタにおいて、
前記アダプタが、前記底壁の外面に形成されて該底壁の内面に向かって凹む底凹部と、前記両側壁の外面に形成されて該両側壁の内面に向かって凹む両側凹部と、前記底壁の端面に形成されて前記挿入孔の中央部に向かって凹む端面凹部とを有し、前記シャッタ部材が、底板と、前記底板の両側縁から上方へ延びる両側板と、前記両側板の間に位置して、前記底板を共有しつつ前記横方向へ並び、前記底板の前端縁から上方へ延びる少なくとも２つの連結板と、前記連結板につながって前記底板から上方へ延びるとともに、所定の曲率半径を有して湾曲する弾性変形可能なシャッタ板とを有し、前記アダプタでは、前記シャッタ部材の底板が前記底凹部と略同形同大に成形されて該底凹部に嵌合しつつ該底凹部全域に密着し、前記シャッタ部材の両側板が前記両側凹部と略同形同大に成形されて該両側凹部に嵌合しつつ該両側凹部全域に密着し、前記シャッタ部材の連結板が前記端面凹部に嵌合し、前記シャッタ部材のシャッタ板が前記挿入孔の端部に位置して該挿入孔の中央部に向かって凸となるように湾曲しつつ該挿入孔を遮蔽するとともに、前記コネクタを前記挿入孔に挿入したときに該コネクタに押圧されて該挿入孔の中央部に向かって倒れ、前記シャッタ部材の底板が、前記少なくとも２つのシャッタ板の間に位置して前記挿入孔の中央部に向かって凹む凹部を有することを特徴とする光通信用アダプタ。 A top wall and both side walls extending in the front-rear direction; and at least one partition wall positioned between the side walls and extending in the front-rear direction; surrounded by the walls and penetrating in the front-rear direction; across the parallel beauty laterally, and at least two insertion holes connector for optical fiber connection is removably inserted, the optical connection sleeve is installed to support the ferrule of the connector in a central portion of the insertion hole In an optical communication adapter having a shutter member capable of opening and closing the end of the insertion hole,
The adapter includes a bottom recess formed on an outer surface of the bottom wall and recessed toward the inner surface of the bottom wall, a both-side recess formed on the outer surface of the both side walls and recessed toward the inner surface of the both side walls, and the bottom. An end surface recess formed on the end surface of the wall and recessed toward the center of the insertion hole, and the shutter member is positioned between the bottom plate, both side plates extending upward from both side edges of the bottom plate, and the both side plates. The bottom plate is shared in the lateral direction and extends upward from the front edge of the bottom plate, and is connected to the connection plate and extends upward from the bottom plate, and has a predetermined radius of curvature. And having an elastically deformable shutter plate that is curved, and in the adapter, the bottom plate of the shutter member is formed to be substantially the same shape and the same size as the bottom recess, and the bottom recess is fitted into the bottom recess. The shutter part is in close contact with the entire area. The both side plates are formed to have substantially the same shape and the same size as the concave portions on both sides and are closely fitted to the concave portions on both sides while being fitted to the concave portions on both sides, and the connecting plate of the shutter member is fitted to the concave portion on the end surface. When the shutter plate of the member is located at the end of the insertion hole and is curved so as to protrude toward the center of the insertion hole, the insertion hole is shielded and the connector is inserted into the insertion hole The bottom plate of the shutter member has a recess that is located between the at least two shutter plates and is recessed toward the central portion of the insertion hole. Features an optical communication adapter. 前記アダプタの底壁の内面には、該底壁の外面に向かって凹むとともに、前記シャッタ部材のシャッタ板が前記挿入孔の中央部に向かって倒れたときにそのシャッタ板を収容する収容凹部が形成されている請求項１に記載の光通信用アダプタ。 An inner surface of the bottom wall of the adapter is recessed toward the outer surface of the bottom wall, and a housing recess for housing the shutter plate when the shutter plate of the shutter member falls toward the center of the insertion hole. optical communication adapter according to claim 1, which is formed. 前記シャッタ部材のシャッタ板が、その基端に位置して前記底壁の内面に密着する固定部と、その延出端に位置して前記挿入孔の中央部に向かって所定角度で折れ曲がる折曲部と、前記固定部と前記折曲部との間に位置して前記挿入孔の中央部に向かって凸となるように湾曲する湾曲部とを有する請求項１または請求項２に記載の光通信用アダプタ。 The shutter plate of the shutter member is positioned at the base end thereof and is closely attached to the inner surface of the bottom wall, and is bent at a predetermined angle toward the center portion of the insertion hole positioned at the extension end thereof. The light according to claim 1, further comprising: a bending portion that is positioned between the fixing portion and the bending portion and curves so as to be convex toward a central portion of the insertion hole. Communication adapter. 前記シャッタ板の曲率半径が、５．０〜７．５ｍｍの範囲にある請求項１ないし請求項３のいずれかに記載の光通信用アダプタ。 The optical communication adapter according to any one of claims 1 to 3 , wherein a radius of curvature of the shutter plate is in a range of 5.0 to 7.5 mm . 前記シャッタ部材の厚み寸法が、０．０１〜０．１ｍｍの範囲にあり、前記シャッタ板の弾性反発力が、０．１〜０．６Ｎの範囲にある請求項１ないし請求項４のいずれかに記載の光通信用アダプタ。
The thickness dimension of the said shutter member exists in the range of 0.01-0.1 mm, and the elastic repulsive force of the said shutter board exists in the range of 0.1-0.6N, The any one of Claim 1 thru | or 4 An optical communication adapter according to 1.
JP2013005934A 2013-01-17 2013-01-17 Optical communication adapter Active JP5250723B2 (en)

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