JP4653676B2 - Cable connection closure - Google Patents

Cable connection closure Download PDF

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JP4653676B2
JP4653676B2 JP2006061475A JP2006061475A JP4653676B2 JP 4653676 B2 JP4653676 B2 JP 4653676B2 JP 2006061475 A JP2006061475 A JP 2006061475A JP 2006061475 A JP2006061475 A JP 2006061475A JP 4653676 B2 JP4653676 B2 JP 4653676B2
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cable
sealing
groove
notch groove
plate
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JP2007240760A (en
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彰夫 貴志
成人 永田
哲也 大杉
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Japan Communication Accesories Manufacturing Co Ltd
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Japan Communication Accesories Manufacturing Co Ltd
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Description

本発明は、ケーブル接続用クロージャに関するもので、特に、主ケーブルと分岐ケーブルあるいはドロップケーブルとのクロージャ内での接続や収容等の作業性の向上及びコスト低減を図るための改良に関する。   The present invention relates to a cable connection closure, and more particularly to an improvement for improving workability and cost reduction such as connection and accommodation of a main cable and a branch cable or a drop cable in the closure.

図7乃至図9は、主ケーブル又は分岐ケーブル等の光ケーブルにドロップケーブルを接続したケーブル接続部を収容保護するケーブル接続用クロージャの従来例を示したものである。
このケーブル接続用クロージャ1は、主ケーブル3に分岐ケーブル5又はドロップケーブル7を接続したケーブル接続部9の外周を被包する筒状ケース11で構成される。
筒状ケース11内には、各ケーブル3,5,7が出入りする筒状ケース11の両端の開放部11a,11bを塞ぐと共に筒状ケース11内に導入されるケーブル3,5,7毎にケーブル挿通用開口部13,15,17が形成された端面板21と、ケーブル挿通用開口部13,15,17を挿通した各ケーブル3,5,7を筒状ケース11内で把持固定するケーブル把持金具37とを備えている(例えば、特許文献1参照)。
7 to 9 show a conventional example of a cable connection closure that accommodates and protects a cable connection portion in which a drop cable is connected to an optical cable such as a main cable or a branch cable.
The cable connection closure 1 includes a cylindrical case 11 that encloses the outer periphery of a cable connection portion 9 in which a branch cable 5 or a drop cable 7 is connected to a main cable 3.
In the cylindrical case 11, the open portions 11 a, 11 b at both ends of the cylindrical case 11 through which the cables 3, 5, 7 enter and exit are closed and the cables 3, 5, 7 introduced into the cylindrical case 11 are provided for each cable 3, 5, 7. The end face plate 21 in which the cable insertion openings 13, 15, and 17 are formed, and the cables 3, 5, and 7 that are inserted through the cable insertion openings 13, 15, and 17 are held and fixed in the cylindrical case 11. The holding metal fitting 37 is provided (for example, refer patent document 1).

筒状ケース11は、上記のようにケーブル接続部9を収容すると共に一側を開放したケース本体12aと、このケース本体12aの開放面を覆うカバー12bとで両端を開放した筒構造を形成している。図示例の場合、カバー12bは、その一側縁12cがケース本体12aの一方の開放側縁にヒンジ結合されて、図7に矢印Aで示すように開閉可能になっている。カバー12bの他方の側縁12dには、カバー12bを閉じた時にケース本体12a側の係合部に係止される弾性係止片12eが装備されている。   The cylindrical case 11 forms a cylindrical structure in which both ends are opened by the case main body 12a that accommodates the cable connecting portion 9 and opens one side as described above, and the cover 12b that covers the open surface of the case main body 12a. ing. In the case of the illustrated example, the cover 12b has one side edge 12c hinged to one open side edge of the case body 12a, and can be opened and closed as indicated by an arrow A in FIG. The other side edge 12d of the cover 12b is equipped with an elastic locking piece 12e that is locked to the engaging portion on the case body 12a side when the cover 12b is closed.

端面板21は、図8に示すように、例えば主ケーブル3を挿通させるための一つのケーブル挿通用開口部13と、分岐ケーブル5を挿通させるための2つのケーブル挿通用開口部15とを、縦一列に配置している。
この端面板21は、硬質樹脂又は金属等で形成されて外郭形状をなす外郭基材27と、この外郭基材27の内周部に装着されて各ケーブル挿通用開口部13,15,17を提供するゴム製のシール板29,30,31とを備えている。
ケーブル挿通用開口部15を提供するシール板30,31には、ドロップケーブル7を挿通させるための複数個のケーブル挿通用開口部17が、ケーブル挿通用開口部15の周囲に同心円上に形成されている。
As shown in FIG. 8, the end face plate 21 includes, for example, one cable insertion opening 13 for inserting the main cable 3 and two cable insertion openings 15 for inserting the branch cable 5. They are arranged vertically.
The end face plate 21 is formed of a hard resin or metal, and has an outer shell base 27 having an outer shell shape. The end plate 21 is attached to the inner peripheral portion of the outer shell base member 27 so that the cable insertion openings 13, 15, 17 are formed. Rubber seal plates 29, 30, and 31 are provided.
A plurality of cable insertion openings 17 for allowing the drop cable 7 to pass therethrough are formed concentrically around the cable insertion opening 15 in the seal plates 30 and 31 that provide the cable insertion opening 15. ing.

端面板21を構成している外郭基材27及びシール板29,30,31は、図8に示すように、各ケーブル挿通用開口部13,15,15の中心を通る垂直面が割り面33となっていて、図9に示すように、この割り面33によって2分割に開閉可能になっている。
従って、外郭基材27及びシール板29,30,31は、図9に示すように、割り面33で端面板21を開いた状態にすることにより、各ケーブル挿通用開口部13,15,15に簡単にケーブル3,5,5を割り込ませることができる。
なお、図9にも示したように、各シール板29,30,31は、ケーブルの軸方向に離間した外郭基材27の両端部にそれぞれ装備されて、2重の防水構造を形成している。
As shown in FIG. 8, the outer base material 27 and the seal plates 29, 30, and 31 constituting the end surface plate 21 have a vertical surface that passes through the centers of the cable insertion openings 13, 15, and 15 and has a split surface 33. As shown in FIG. 9, the split surface 33 can be opened and closed in two.
Therefore, as shown in FIG. 9, the outer base material 27 and the seal plates 29, 30, and 31 are opened in the end surface plate 21 at the split surface 33, so that each cable insertion opening 13, 15, 15 is opened. Can easily interrupt the cables 3, 5, and 5.
As shown in FIG. 9, the seal plates 29, 30, and 31 are respectively provided at both ends of the outer base material 27 that are separated in the axial direction of the cable to form a double waterproof structure. Yes.

ケーブル把持金具37は、図8に示すように、ケース本体12aに固定される金具取付体35に着脱可能に取り付けられている。
金具取付体35の垂直方向に延びたフランジ部35aには、端面板21上の各ケーブル挿通用開口部13,15,15の配列ピッチに対応して、3つのケーブル把持金具37が装着可能になっている。
As shown in FIG. 8, the cable gripping bracket 37 is detachably mounted on a bracket mounting body 35 that is fixed to the case body 12a.
Three cable gripping brackets 37 can be mounted on the flange portion 35 a extending in the vertical direction of the bracket mounting body 35 in accordance with the arrangement pitch of the cable insertion openings 13, 15, 15 on the end face plate 21. It has become.

ケーブル把持金具37は、光ケーブルを挿通させるケーブル把持溝38を形成する略U字状のクランプ部41と、このクランプ部41の対向する一対のアーム部41a,41aに螺合して装備された一対の鬼目ねじ43,43とから構成されていて、ケーブル把持溝38に挿通されたケーブルを一対の鬼目ねじ43,43で挟持することで、ケーブルの把持・固定を行う。   The cable gripping bracket 37 is a pair of a substantially U-shaped clamp portion 41 that forms a cable gripping groove 38 through which an optical cable is inserted and a pair of arm portions 41a and 41a that are opposed to the clamp portion 41. The cable is clamped and fixed by holding the cable inserted into the cable gripping groove 38 between the pair of demon screws 43, 43.

特開平11−262161号公報JP-A-11-262161

ところで、上記のようなケーブル接続用クロージャを使ったケーブル接続作業は、身動きの取りにくい架空での現場作業となる。そのため、ケーブル接続用クロージャの設計に際しては、ケーブルを伝って筒状ケース11内に雨水等が浸入することが無いように端面板21にしっかりとした防水対策を施すこと、筒状ケース11内への各ケーブル3,5,7の出し入れ操作が簡単にできて作業時間の短縮を図れるように、端面板21のケーブル挿通用開口部の構造等を工夫しておくこと、作業中に工具や部品の落下等の不都合を招くことが無いように構造(構成)を単純化すること、等が重要課題となっている。   By the way, the cable connection work using the cable connection closure as described above is an imaginary field work that is difficult to move. Therefore, when designing the cable connection closure, the end face plate 21 is provided with a waterproof measure so that rainwater or the like does not enter the cylindrical case 11 through the cable. The structure of the cable insertion opening of the end face plate 21 is devised so that the cable 3, 5 and 7 can be easily inserted and removed, and the working time can be shortened. Simplification of the structure (configuration) so as not to cause inconvenience such as dropping of the battery is an important issue.

また、最近のインターネット接続では、加入者宅まで直接光ファイバケーブルを引き込むFTTH(Fiber To The Home)が急速な普及を見せており、加入者宅への光ファイバケーブル(ドロップケーブル)の分岐のために上記ケーブル接続用クロージャの設置数が急増しているため、部品の単純化や共用化によるケーブル接続用クロージャのコスト低減も重要な課題となっている。   In addition, in recent Internet connections, FTTH (Fiber To The Home), which draws optical fiber cables directly to the subscriber's home, is rapidly spreading, and because of the branching of the optical fiber cable (drop cable) to the subscriber's home. In addition, since the number of cable connection closures is rapidly increasing, it is an important issue to reduce the cost of cable connection closures by simplifying and sharing parts.

上記のケーブル接続用クロージャ1の場合、端面板21のケーブル挿通用開口部13,15,17は、硬質樹脂又は金属等で形成された外郭基材27にゴム製のシール板29,30,31を組み付けた構成で、シール板29,30,31がケーブル外周に密着することで、優れた防水性を確保することができる。また、端面板21を構成している外郭基材27やシール板29,30,31は、割り面で開くヒンジ構造に形成されていて、開いた状態にすることで比較的容易にケーブルの出し入れが可能にもなっている。   In the case of the cable connection closure 1, the cable insertion openings 13, 15, 17 of the end face plate 21 are made of rubber seal plates 29, 30, 31 on the outer base material 27 made of hard resin or metal. With the configuration in which the sealing plates 29, 30, and 31 are in close contact with the outer periphery of the cable, excellent waterproof properties can be ensured. Further, the outer base material 27 and the seal plates 29, 30, and 31 constituting the end face plate 21 are formed in a hinge structure that opens at the split surface, so that the cable can be taken in and out relatively easily by opening it. Is also possible.

ところが、従来の端面板21は、ヒンジ結合による割り構造(可動構造)にしているために、外郭基材27やシール板29,30,31の構造が複雑化している。さらに、各シール板29,30,31は、ケーブル軸方向に離して外郭基材27の両端部にそれぞれ個別に装備する構成で、組み付け部品点数の増大を招いている。そして、このような部品構造の複雑化や組み付け部品点数の増大が、ケーブル接続用クロージャのコストアップを招くという問題があった。   However, since the conventional end face plate 21 has a split structure (movable structure) by hinge coupling, the structure of the outer base material 27 and the seal plates 29, 30, and 31 is complicated. Further, each of the seal plates 29, 30, and 31 is provided separately at both end portions of the outer base material 27 apart from each other in the cable axial direction, resulting in an increase in the number of parts to be assembled. Then, there is a problem in that the complexity of the component structure and the increase in the number of assembled components increase the cost of the cable connection closure.

また、各シール板29,30,31は、ゴム材による薄板の縁がケーブルに接触する構造で、シール板とケーブルとの接触面積が小さいため、経年変化等でシール板の縁の一部に変形が生じると、それによりシール性能が低下する虞があり、シール性能を長期に渡って安定維持することが難しいという問題もあった。   Further, each of the seal plates 29, 30, 31 has a structure in which the edge of the thin plate made of a rubber material contacts the cable, and the contact area between the seal plate and the cable is small. When the deformation occurs, there is a risk that the sealing performance may be lowered, and there is a problem that it is difficult to stably maintain the sealing performance for a long time.

本発明の目的は、端面板のケーブル挿通用開口部へのケーブルの出し入れが容易にでき、しかも、端面板の構成部品の構造の単純化や、組み付け部品点数の削減によるコストの低減を図ることもでき、さらには、ケーブル挿通用開口部において良好なシール性能を長期に渡って安定維持することができるケーブル接続用クロージャを提供することにある。   The object of the present invention is to facilitate the insertion and removal of cables to and from the cable insertion opening of the end face plate, and to reduce the cost by simplifying the structure of the component parts of the end face plate and reducing the number of assembled parts. Furthermore, another object of the present invention is to provide a cable connection closure capable of stably maintaining a good sealing performance for a long period of time at a cable insertion opening.

上記目的を達成するために、本発明に係るケーブル接続用クロージャは、ケーブルの接続部を収容するケースの端部の開放部が、ケーブル挿通用開口部を有した端面板により塞がれるケーブル接続用クロージャであって、前記ケーブル挿通用開口部が、板本体の外周に開口部を持つ形態の切り欠き溝とされて前記ケース内に導入または該ケース内より導出されるケーブル毎に形成され、前記端面板は、前記切り欠き溝を挿通する前記光ケーブルの外周に巻き付けられた状態で前記切り欠き溝に嵌め込まれるシール用帯部材を備え、前記シール用帯部材は、一端には厚肉化により前記光ケーブルを位置決めする段差が形成され、前記段差により位置決めされた前記光ケーブルの外周に薄肉の帯部分を巻き付けて該薄肉の帯部分を前記厚肉部の上に重ねることで、前記光ケーブルに密着巻き付けした状態を得ることを特徴とする。 To achieve the above object, Cables connecting closure according to the present invention, the opening portion of the end portion of the case for accommodating the connection portion of the optical cable, which is closed by end plates having a cable insertion opening A connection closure, wherein the cable insertion opening is formed as a notch groove having an opening on the outer periphery of the plate body, and is formed for each cable introduced into or led out from the case. , the end surface plate is provided with a sealing strip member to be fitted into the cutout groove while being wound around the outer peripheral of the optical cable inserted through the cutout groove, the sealing strip member, at one end thick A step for positioning the optical cable is formed by forming the thin optical fiber, and a thin strip portion is wound around the outer periphery of the optical cable positioned by the step, and the thin strip portion is By overlapping in, characterized in that to obtain a state of being wound in close contact with the optical cable.

また、本発明に係るケーブル接続用クロージャにおいて、前記切り欠き溝は、前記端面板の外周の開口部付近に溝幅を狭めるように形成されて前記シール用帯部材を係止する係止爪を突設させていることを特徴とするとよい。 Further, in the cable connection closure according to the present invention, the notch groove is formed in the vicinity of the opening on the outer periphery of the end face plate so as to narrow the groove width, and has a locking claw for locking the sealing band member. It is good to be characterized by projecting.

更に、本発明に係るケーブル接続用クロージャにおいて、前記切り欠き溝には、該切り欠き溝のケーブル挿通方向中間部に、該切り欠き溝に連通するように形成されて該切り欠き溝に嵌め込まれる前記シール用帯部材の膨出部を逃がす中空部が設けられているとよい。 Furthermore, in the cable connection closure according to the present invention, the cutout groove is formed in the middle portion of the cutout groove in the cable insertion direction so as to communicate with the cutout groove and is fitted into the cutout groove. It is preferable that a hollow portion for escaping the bulging portion of the sealing belt member is provided.

また、本発明に係るケーブル接続用クロージャにおいて、前記シール用帯部材には、ケーブルに巻き付けた際に、ケーブルの太さに応じて余分な部分を切除する位置を示す寸法調整用のマークが付与されていることを特徴とするとよい。   Further, in the cable connection closure according to the present invention, when the cable is wound around the cable, the seal band member is provided with a dimensional adjustment mark indicating a position where an excess portion is cut according to the thickness of the cable. It is good to be characterized.

本発明のケーブル接続用クロージャによれば、例えば、後分岐処理理等で端面板のケーブル挿通用開口部へ新たにケーブルを挿通する場合、まず、新たに挿通させるケーブルにシール用帯部材を巻き付けた状態にし、次いで、そのシール用帯部材を端面板のケーブル挿通用開口部に嵌め込むだけで、簡単に作業を終わらせることができる。また、ケーブルを端面板のケーブル挿通用開口部から抜去する場合も、シール用帯部材を巻き付けた部位をケーブル挿通用開口部から引き出せばよく、抜去作業も簡単にできる。従って、端面板のケーブル挿通用開口部へのケーブルの挿抜が容易にでき、ケーブル接続時や保守時の作業性を向上させることができる。   According to the cable connection closure of the present invention, for example, when a new cable is inserted into the cable insertion opening of the end face plate by a post-branching process or the like, first, a sealing belt member is wound around the newly inserted cable. Then, simply by fitting the sealing band member into the cable insertion opening of the end face plate, the operation can be easily completed. Further, when the cable is pulled out from the cable insertion opening of the end face plate, the portion around which the sealing belt member is wound may be pulled out from the cable insertion opening, and the removal work can be simplified. Therefore, the cable can be easily inserted into and removed from the cable insertion opening of the end face plate, and workability at the time of cable connection and maintenance can be improved.

以下、本発明に係るケーブル接続用クロージャの好適な実施の形態について、図面を参照して詳細に説明する。
図1は本発明に係るケーブル接続用クロージャの一実施の形態の筒状のケースを開いた状態の正面図、図2は図1に示した端面板の分解斜視図、図3は図2に示した端面板を構成する板本体の正面図、図4は図1に示した端面板に各ケーブルを保持させた状態の正面図、図5は図4の部分拡大図、図6は図3に示した板本体の切り欠き溝に挿通させるケーブルにシール用帯部材を装着する工程の説明図である。
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a cable connection closure according to the invention will be described in detail with reference to the drawings.
1 is a front view showing a state in which a cylindrical case of an embodiment of a cable connection closure according to the present invention is opened, FIG. 2 is an exploded perspective view of an end face plate shown in FIG. 1, and FIG. FIG. 4 is a front view of a state where each cable is held on the end face plate shown in FIG. 1, FIG. 5 is a partially enlarged view of FIG. 4, and FIG. It is explanatory drawing of the process of mounting | wearing with the band member for a seal | sticker to the cable inserted in the notch groove of the board main body shown in FIG.

この一実施の形態のケーブル接続用クロージャ51は、主ケーブル等の光ケーブルに分岐ケーブルやドロップケーブルが接続された光ケーブル接続部を収容し保護するもので、光ケーブル接続部を収納保持する接続部収納トレイ52と、この接続部収納トレイ52の外周を被包するケース53と、各ケーブルが出入りするケース53の両端の開放部53a,53bを液密状態に塞ぐと共に、ケース53内に導入される各ケーブル毎にケーブル挿通用開口部としての切り欠き溝63,64,65が形成された端面板71と、ケーブル挿通用開口部63,64,65を挿通した各ケーブルをケース53内で把持固定するケーブル把持金具72とを備えている。   The cable connection closure 51 of this embodiment accommodates and protects an optical cable connection portion in which a branch cable or a drop cable is connected to an optical cable such as a main cable, and a connection portion storage tray for storing and holding the optical cable connection portion. 52, a case 53 that encloses the outer periphery of the connection portion storage tray 52, and open portions 53a and 53b at both ends of the case 53 through which each cable enters and exits are sealed in a liquid-tight state, and each is introduced into the case 53 The end face plate 71 in which the notch grooves 63, 64, 65 as the cable insertion openings are formed for each cable and the cables inserted through the cable insertion openings 63, 64, 65 are held and fixed in the case 53. And a cable gripping fitting 72.

ケース53は、上記のように接続部収納トレイ52を収容すると共に一側(前面側)を開放したケース本体54と、このケース本体54の開放面を覆うカバー55とで両端を開放した筒構造を形成したものである。図示例の場合、カバー55は、その一側縁55aがケース本体54の一方の開放側縁にヒンジ結合されて、開閉可能になっている。カバー55の他方の側縁55bには、カバー55を閉じた時にケース本体54側の係合部に係止される弾性係止片55cが装備されている。   The case 53 has a cylindrical structure in which both ends are opened by the case main body 54 that accommodates the connection portion storage tray 52 and opens one side (front side) and the cover 55 that covers the open surface of the case main body 54 as described above. Is formed. In the case of the illustrated example, the cover 55 has one side edge 55a hinged to one open side edge of the case body 54 so that the cover 55 can be opened and closed. The other side edge 55b of the cover 55 is equipped with an elastic locking piece 55c that is locked to the engaging portion on the case body 54 side when the cover 55 is closed.

ケース本体54の両端部には、ねじ止め等により、吊金具57が結合されている。吊金具57は、光ファイバケーブルの敷設経路に沿って張架されている架空の吊り線58を把持して、ケーブル接続用クロージャ51が吊り線58に吊持された状態を得る。   Suspension fittings 57 are coupled to both ends of the case body 54 by screws or the like. The hanging bracket 57 grips an imaginary suspension line 58 stretched along the laying path of the optical fiber cable, and obtains a state in which the cable connection closure 51 is suspended by the suspension line 58.

本実施の形態の端面板71は、図2乃至図4に示すように、筒状ケース53の端部に形成された板保持手段59(図1参照)により外周が保持されて開放部53a,53bを塞ぐ板本体73と、この板本体73の外周に開口部を持つ形態で形成されてケーブル挿通用開口部となる前述の切り欠き溝63,64,65と、遮水性を持つ弾性材料により略帯状に形成されて切り欠き溝64,65を挿通する主ケーブル3や分岐ケーブル5の外周に巻き付けられた状態で切り欠き溝64,65に嵌め込まれるシール用帯部材75と、切り欠き溝63に挿通される複数のドロップケーブル7を液密状態に保持して切り欠き溝63にはめ込まれる遮水性を持つ弾性材料製のシールブロック76とで構成される。   As shown in FIGS. 2 to 4, the end face plate 71 of the present embodiment is held at its outer periphery by plate holding means 59 (see FIG. 1) formed at the end of the cylindrical case 53, so that the open portion 53 a, A plate main body 73 for closing 53b, the above-described cutout grooves 63, 64, 65 which are formed in the form having openings on the outer periphery of the plate main body 73 and serve as cable insertion openings, and an elastic material having a water shielding property. A strip member 75 for sealing fitted into the notch grooves 64 and 65 in a state of being wound around the outer periphery of the main cable 3 and the branch cable 5 formed in a substantially band shape and inserted through the notch grooves 64 and 65, and the notch groove 63. And a plurality of drop cables 7 inserted into the seal block 76 made of an elastic material having a water blocking property and held in a liquid-tight state and fitted into the notch groove 63.

上記シール用帯部材75及びシールブロック76を形成する遮水性を持つ弾性材料とは、例えば、水等を透過しないゴムシートやスポンジ等の他、オイルを含浸させた熱可塑性樹脂材料による略シート状の成形品が該当する。   The elastic material having a water-proofing property that forms the sealing band member 75 and the sealing block 76 is, for example, a substantially sheet-like shape made of a thermoplastic resin material impregnated with oil, in addition to a rubber sheet or sponge that does not transmit water or the like. This corresponds to the molded product.

切り欠き溝63は、図3及び図4に示すように、板本体73の上縁に形成されている。切り欠き溝63は、略直方体状のシールブロック76が嵌合する長方形状のケーブル挿通溝63aと、このケーブル挿通溝63aを板本体73の上縁に開口させる連絡溝63bとで構成されている。
切り欠き溝64は、板本体73の左右の側縁にそれぞれ形成されている。また、切り欠き溝65は、板本体73の下縁に形成されている。また、切り欠き溝64と切り欠き溝65は、いずれも、図3に示すように、正面視で半円弧部64a,65aに直線部64b,65bが連なる略U字状に形成されている。切り欠き溝65は主ケーブル3の保持用で、切り欠き溝64は分岐ケーブル5の保持用である。切り欠き溝65は、切り欠き溝64よりも少し寸法が大きく形成されている。
As shown in FIGS. 3 and 4, the notch groove 63 is formed at the upper edge of the plate body 73. The notch groove 63 includes a rectangular cable insertion groove 63 a into which the substantially rectangular parallelepiped seal block 76 is fitted, and a communication groove 63 b that opens the cable insertion groove 63 a at the upper edge of the plate body 73. .
The notch grooves 64 are respectively formed on the left and right side edges of the plate body 73. The notch groove 65 is formed at the lower edge of the plate body 73. Further, as shown in FIG. 3, each of the notch groove 64 and the notch groove 65 is formed in a substantially U shape in which the straight arc portions 64b and 65b are connected to the semicircular arc portions 64a and 65a in a front view. The notch groove 65 is for holding the main cable 3, and the notch groove 64 is for holding the branch cable 5. The notch groove 65 is formed to have a slightly larger dimension than the notch groove 64.

板本体73は、比較的に硬質の樹脂による成形品で、図2及び図3に示すように、縦に2分割された2つの半割れ板本体81,82から構成されている。
各半割れ板本体81,82は、図2に示すように、ケーブルの軸方向に離間して対向する一対の板部81a,81b,82a,82bと、これらの対向する一対の板部81a,81b,82a,82b同士をその外周よりも内側で連結する連結板部81c,82cと、各板部81a,81b,82a,82bの外周よりも内側からケーブル軸方向に突出されたリブ81d,82dとを備えている。
The plate body 73 is a molded product made of a relatively hard resin, and is composed of two half-cracked plate bodies 81 and 82 that are vertically divided into two as shown in FIGS.
As shown in FIG. 2, each half-cracked plate body 81, 82 has a pair of plate portions 81 a, 81 b, 82 a, 82 b that are spaced apart from each other in the axial direction of the cable, and a pair of these plate portions 81 a, Connecting plate portions 81c and 82c for connecting 81b, 82a and 82b on the inner side of the outer periphery thereof, and ribs 81d and 82d protruding in the cable axial direction from the inner sides of the outer periphery of the plate portions 81a, 81b, 82a and 82b. And.

2分割された半割れ板本体81,82相互は、一方の半割れ板本体81の一対の板部81a,81bに突設された係止突起84を、他方の半割れ板本体82の一対の板部82a,82bに形成された係止穴85に係合させることで、互いに連結される。   The half-split plate main bodies 81, 82 divided into two are provided with a locking projection 84 projecting from a pair of plate portions 81 a, 81 b of one half-split plate main body 81 and a pair of half-split plate main bodies 82. By engaging with locking holes 85 formed in the plate portions 82a and 82b, they are connected to each other.

ケース本体54の両端に形成された板保持手段59は、図1に示すように、溝構造となっている。そして、この溝に、半割れ板本体81,82の一対の板部81a,81b,82a,82bの外周部が嵌合することで、板本体73がケース本体54の両端に着脱可能に固定される。   The plate holding means 59 formed at both ends of the case main body 54 has a groove structure as shown in FIG. The plate body 73 is detachably fixed to both ends of the case body 54 by fitting the outer peripheral portions of the pair of plate portions 81a, 81b, 82a, 82b of the half-cracked plate bodies 81, 82 into the groove. The

各半割れ板本体81,82は、軸方向に離間して対向する一対の板部相互を連結板部81c,82cで連結することで、略中空構造になっている。
切り欠き溝65は、その一対の板部間の中空部86に連通する構造となっていて、切り欠き溝65に挿入されるシール用帯部材75の巻き付け時の変形による外径方向の膨出部75a(図5参照)が中空部86に逃げることで、シール用帯部材75が切り欠き溝65に収まりやすくなっている。
Each half-cracked board main body 81, 82 has a substantially hollow structure by connecting a pair of opposing plate parts spaced apart in the axial direction by connecting plate parts 81c, 82c.
The notch groove 65 has a structure communicating with the hollow portion 86 between the pair of plate portions, and bulges in the outer diameter direction due to deformation at the time of winding of the sealing belt member 75 inserted into the notch groove 65. Since the portion 75 a (see FIG. 5) escapes to the hollow portion 86, the sealing band member 75 is easily accommodated in the notch groove 65.

また、略U字状の切り欠き溝64,65は、板部の外周の開口部付近に、挿入されたシール用帯部材75を係止する係止爪64c,65cが、溝幅を狭めるように突設されている。ケーブルの外周に巻き付けられてそれぞれの切り欠き溝64,65に挿入されたシール用帯部材75は、図4及び図5に示すように、係止爪64c,65cが引っかかることで、各切り欠き溝64,65からの抜けが規制される。   Further, the substantially U-shaped cutout grooves 64 and 65 are arranged so that the locking claws 64c and 65c for locking the inserted sealing strip member 75 near the opening on the outer periphery of the plate portion narrow the groove width. Projected to As shown in FIGS. 4 and 5, the sealing band member 75 that is wound around the outer periphery of the cable and inserted into the notch grooves 64 and 65 is engaged with the locking claws 64c and 65c. Removal from the grooves 64 and 65 is restricted.

また、ケーブルの外周に巻き付けられたシール用帯部材75がそれぞれの切り欠き溝64,65に挿入されると、シール用帯部材75の弾性変形により、切り欠き溝64,65を挿通するケーブル3,5と切り欠き溝64,65との間の隙間が液密に塞がれる。   Further, when the sealing band member 75 wound around the outer periphery of the cable is inserted into the notch grooves 64 and 65, the cable 3 inserted through the notch grooves 64 and 65 due to elastic deformation of the sealing band member 75. , 5 and the notches 64 and 65 are liquid-tightly closed.

本実施の形態の場合、シール用帯部材75は、図6(a)に示すように、帯の幅寸法wが切り欠き溝64,65のケーブル軸方向の長さL(図2参照)に相応して設定され、且つ、一端には厚肉化によりケーブル3,5を位置決めする段差75bが形成されている。そして、図6(b)に示すように、段差75bにより位置決めされたケーブル3,5の外周に薄肉の帯部分75dを巻き付けて該薄肉の帯部分75dを厚肉部75cの上に重ねることで、ケーブル3,5に密着巻き付けした状態を得る。   In the case of the present embodiment, as shown in FIG. 6A, the band member for sealing 75 has the width dimension w of the band set to the length L (see FIG. 2) of the notch grooves 64 and 65 in the cable axial direction. A step 75b for positioning the cables 3 and 5 is formed at one end by thickening. Then, as shown in FIG. 6B, a thin band portion 75d is wound around the outer periphery of the cables 3 and 5 positioned by the step 75b, and the thin band portion 75d is overlapped on the thick portion 75c. The cable 3 and 5 are tightly wound.

シール用帯部材75の段差75bの高さは、一番使用頻度が高いケーブルの外径に近い値(標準値)に設定されている。   The height of the step 75b of the sealing band member 75 is set to a value (standard value) close to the outer diameter of the cable that is most frequently used.

また、本実施の形態のシール用帯部材75の厚肉部75c及び薄肉の帯部分には、図6(a)に示すように、ケーブル3,5に巻き付けた際に、ケーブル3,5の太さに応じて余分な部分を切除する位置を示す寸法調整用のマーク78が付与されている。
シール用帯部材75の薄肉の帯部分75dを巻き付けるケーブル3,5の外径が標準よりも太い場合は、図6(c)に示すように、薄肉の帯部分75dの端部よりも、厚肉部75cの端部が長さL1だけ突出した状態になる。その時の突出した部分が余分な部分で、マーク78に従って切除することで、端部を切り揃えることができる。一方、ケーブル3,5の外径が標準よりも細い場合は、図6(d)に示すように、薄肉の帯部分75dの端部が、厚肉部75cの端部よりも突出した状態になる。その時の突出した部分が余分な部分で、マーク78に従って切除することで、端部を切り揃えることができる。
Further, as shown in FIG. 6A, when the cable 3 or 5 is wound around the thick part 75c and the thin band part of the seal band member 75 of the present embodiment, In accordance with the thickness, a mark 78 for adjusting a dimension indicating a position for cutting off an excess portion is provided.
When the outer diameter of the cables 3 and 5 around which the thin strip portion 75d of the sealing strip member 75 is wound is thicker than the standard, as shown in FIG. 6 (c), it is thicker than the end portion of the thin strip portion 75d. The end of the meat portion 75c protrudes by a length L1. The protruding portion at that time is an extra portion, and the end portions can be trimmed by cutting according to the mark 78. On the other hand, when the outer diameters of the cables 3 and 5 are thinner than the standard, as shown in FIG. 6 (d), the end of the thin band portion 75d protrudes beyond the end of the thick portion 75c. Become. The protruding portion at that time is an extra portion, and the end portions can be trimmed by cutting according to the mark 78.

以上に説明したケーブル接続用クロージャ51によれば、例えば、後分岐処理理等で端面板71のケーブル挿通用開口部としての切り欠き溝64,65へ新たにケーブル3,5を挿通する場合、まず、新たに挿通させるケーブル3,5にシール用帯部材75を巻き付けた状態にし、次いで、そのシール用帯部材75を端面板71の外周に開口している切り欠き溝64,65に割り込ませるだけで、簡単に作業を終わらせることができる。また、ケーブルを端面板71のケーブル挿通用開口部としての切り欠き溝64,65から抜去する場合も、シール用帯部材75を巻き付けた部位を切り欠き溝64,65の開口側に引き出せばよく、抜去作業も簡単にできる。従って、端面板71のケーブル挿通用開口部へのケーブルの出し入れが容易にでき、ケーブル接続時や保守時の作業性を向上させることができる。   According to the cable connection closure 51 described above, for example, when the cables 3 and 5 are newly inserted into the notch grooves 64 and 65 as the cable insertion openings of the end face plate 71 by a post-branching process or the like, First, the sealing strip member 75 is wound around the cables 3 and 5 to be newly inserted, and then the sealing strip member 75 is inserted into the cutout grooves 64 and 65 opened on the outer periphery of the end face plate 71. You can easily get the job done. Further, when the cable is pulled out from the cutout grooves 64 and 65 as the cable insertion openings of the end face plate 71, the portion around which the sealing belt member 75 is wound may be pulled out to the opening side of the cutout grooves 64 and 65. The removal work can be done easily. Therefore, the cable can be easily inserted and removed from the cable insertion opening of the end face plate 71, and the workability at the time of cable connection and maintenance can be improved.

そして、端面板71のケーブル挿通用開口部が板本体73の外周に開口する切り欠き溝64,65であるため、ケーブル挿通用開口部を開くために、従来品のように部品を分割構造にしたり、ヒンジ結合する必要がなくなる。
さらに、ケーブル3,5に巻き付けるシール用帯部材75は、ケーブル3,5に密着状態に巻き付けて、板本体73の切り欠き溝64,65にはめ込んだ時の弾性変形によりケーブルや切り欠き溝64,65との密着性を増して、シール性能を発揮するもので、ゴム製シール板の縁をケーブル外周に当接することでシール性能を発揮する従来のシール構造と比較すると、シール用帯部材75や切り欠き溝64,65に高い寸法精度がそれほど必要とならない。従って、端面板71の構造の単純化や、組み付け部品点数の削減、加工精度の緩和等によってコストの低減を図ることもできる。
And since the opening part for cable insertion of the end surface board 71 is the notch grooves 64 and 65 opened to the outer periphery of the board main body 73, in order to open the opening part for cable insertion, components are made into a division structure like the conventional product. Or need to be hinged.
Further, the sealing band member 75 wound around the cables 3 and 5 is wound tightly around the cables 3 and 5 and is elastically deformed when fitted into the cutout grooves 64 and 65 of the plate body 73, so that the cable and the cutout groove 64 are wound. , 65 to increase the adhesiveness and exhibit the sealing performance. Compared with the conventional sealing structure that exhibits the sealing performance by abutting the edge of the rubber seal plate to the outer periphery of the cable, the belt member 75 for sealing is used. In addition, high dimensional accuracy is not required for the cutout grooves 64 and 65. Therefore, the cost can be reduced by simplifying the structure of the end face plate 71, reducing the number of assembled parts, relaxing processing accuracy, and the like.

また、端面板71は、切り欠き溝64,65の溝幅を狭めるようにした係止爪64c,65cを開口部付近に突設させて、係止爪64c,65cが、ケーブル3,5の外周に巻き付けられて切り欠き溝64,65に嵌め込まれるシール用帯部材75に引っかかるので、シール用帯部材75、更にはケーブル3,5の切り欠き溝64,65からの抜けを規制できる。   Further, the end face plate 71 has locking claws 64c and 65c projecting near the opening so as to narrow the groove widths of the cutout grooves 64 and 65, and the locking claws 64c and 65c are connected to the cables 3 and 5, respectively. Since it is caught by the sealing band member 75 that is wound around the outer periphery and fitted into the notch grooves 64 and 65, it is possible to restrict the sealing band member 75 and also the cables 3 and 5 from being removed from the notch grooves 64 and 65.

更に、切り欠き溝64,65は、切り欠き溝64,65に嵌め込まれたシール用帯部材75の巻き付け時の変形による外径方向の膨出部75aを逃がす中空部86を備えているので、ケーブル3,5の外周に巻き付けられて外径方向に膨らんだシール用帯部材75が切り欠き溝64,65に容易に収まりやすくなっている。   Further, the notch grooves 64 and 65 include a hollow portion 86 for escaping the bulging portion 75a in the outer diameter direction due to deformation at the time of winding of the sealing belt member 75 fitted in the notch grooves 64 and 65. The sealing strip member 75 wound around the outer periphery of the cables 3 and 5 and swelled in the outer diameter direction easily fits in the cutout grooves 64 and 65.

また、切り欠き溝64,65を挿通するケーブル3,5と切り欠き溝64,65との間の隙間を液密に塞ぐシール用帯部材75は、ケーブル3,5の軸方向に所定の幅wでケーブル3,5や切り欠き溝64,65にそれぞれ密着していて、シール性能を発揮する接触面積が大きいため、経年変化等でシール用帯部材75の接触面の一部に変形が生じても、それによりシール性能が低下することがなく、ケーブル挿通用開口部において良好なシール性能を長期に渡って安定維持することができる。
なお、シール用帯部材75は、切り欠き溝64,65にケーブル3,5を挿通させる以前にあっても切り欠き溝64,65に嵌め合わされて、ケーブル挿通用開口部を液密に塞ぐことができる。
Further, the sealing strip member 75 that liquid-tightly closes the gap between the cables 3 and 5 inserted through the cutout grooves 64 and 65 and the cutout grooves 64 and 65 has a predetermined width in the axial direction of the cables 3 and 5. Since w is in close contact with the cables 3 and 5 and the notch grooves 64 and 65, and the contact area that exhibits the sealing performance is large, a part of the contact surface of the seal band member 75 is deformed due to secular change or the like. Even in this case, the sealing performance is not deteriorated, and the good sealing performance can be stably maintained over a long period in the cable insertion opening.
The sealing band member 75 is fitted in the notch grooves 64 and 65 even before the cables 3 and 5 are inserted into the notch grooves 64 and 65, so that the cable insertion opening is liquid-tightly closed. Can do.

また、本実施の形態のケーブル接続用クロージャ51によれば、シール用帯部材75は、ケーブル3,5に巻き付ける際、段差75bによってケーブル3,5を定位置に位置決めできるため、巻き付け操作中に不用意にケーブルが移動して巻きがずれることがなく、ケーブル3,5への巻き付け操作や、ケーブルに巻き付けたシール用帯部材75の切り欠き溝64,65への挿入操作が容易になり、これにより、作業性が一層向上する。   Further, according to the cable connection closure 51 of the present embodiment, the sealing strip member 75 can position the cables 3 and 5 at a fixed position by the step 75b when the cables 3 and 5 are wound. The cable does not move carelessly and is not unwound, making it easy to wrap around the cables 3 and 5 and to insert the sealing belt member 75 wound around the cable into the cutout grooves 64 and 65. Thereby, workability | operativity improves further.

また、本実施の形態のケーブル接続用クロージャ51によれば、シール用帯部材75の段差75bの高さや、帯の長さ等は、巻き付けるケーブルの外径に応じて余分な部分を切除すれば、外径の異なる多種のケーブルに共通使用でき、シール用帯部材75の多種化を回避して、コストの低減を図ることができる。そして、ケーブルの外径に応じてシール用帯部材75の余分な部分を切除する作業は、寸法調整用のマーク78が付与されているため、現場で切除位置を書き込む必要がなく、現場での寸法調整作業が容易になる。   Further, according to the cable connection closure 51 of the present embodiment, the height of the step 75b of the sealing band member 75, the length of the band, etc. can be cut off according to the outer diameter of the cable to be wound. It can be used in common for various cables having different outer diameters, avoiding diversification of the sealing strip member 75, and reducing the cost. In addition, the work for cutting off the excess portion of the sealing band member 75 according to the outer diameter of the cable is provided with the dimension adjustment mark 78, so there is no need to write the cutting position on the site, Dimension adjustment work becomes easy.

なお、本発明のケーブル接続部用クロージャにおいて、端面板71の板本体73に形成する切り欠き溝64,65の形状は、上記実施の形態に示した略U字状に限らない。例えば、切り欠き溝64,65は、半円状や、その他の適宜形状に設計変更することもできる。   In the cable connection portion closure according to the present invention, the shape of the cutout grooves 64 and 65 formed in the plate body 73 of the end face plate 71 is not limited to the substantially U shape shown in the above embodiment. For example, the notch grooves 64 and 65 can be designed to be semicircular or other appropriate shapes.

本発明に係るケーブル接続部用クロージャの一実施の形態で筒状ケースを開いた状態の正面図である。It is a front view of the state which opened the cylindrical case in one Embodiment of the closure for cable connection parts which concerns on this invention. 図1に示した端面板の分解斜視図である。It is a disassembled perspective view of the end surface plate shown in FIG. 図2に示した端面板を構成する板本体の正面図である。It is a front view of the board main body which comprises the end face board shown in FIG. 図1に示した端面板に各ケーブルを保持させた状態の正面図である。FIG. 2 is a front view showing a state where each cable is held on the end face plate shown in FIG. 1. 図4の部分拡大図である。It is the elements on larger scale of FIG. 図3に示した板本体にシール用帯部材を装着する工程の説明図である。It is explanatory drawing of the process of mounting | wearing the board | plate body shown in FIG. 従来のケーブル接続部用クロージャの斜視図である。It is a perspective view of the closure for the conventional cable connection part. 図7のB部の拡大斜視図である。It is an expansion perspective view of the B section of FIG. 図7の端面板の、割り面で開いた状態の斜視図である。FIG. 8 is a perspective view of the end face plate of FIG. 7 in a state opened by a split surface.

符号の説明Explanation of symbols

3 主ケーブル(光ケーブル)
5 分岐ケーブル(光ケーブル)
51 ケーブル接続用クロージャ
53 筒状ケース
53a,53b 開放部
59 板保持手段
63,64,65 切り欠き溝(ケーブル挿通用開口部)
64c,65c 係止爪
71 端面板
75 シール用帯部材
75b 段差
75c 厚肉部
81,82 半割れ板本体


3 Main cable (optical cable)
5 Branch cable (optical cable)
51 Closure for cable connection 53 Cylindrical case 53a, 53b Open part 59 Plate holding means 63, 64, 65 Notch groove (opening part for cable insertion)
64c, 65c Locking claw 71 End face plate 75 Band member for sealing 75b Step difference 75c Thick part 81, 82 Half crack plate main body


Claims (4)

ケーブルの接続部を収容するケースの端部の開放部が、ケーブル挿通用開口部を有した端面板により塞がれるケーブル接続用クロージャであって、
前記ケーブル挿通用開口部が、板本体の外周に開口部を持つ形態の切り欠き溝とされて前記ケース内に導入または該ケース内より導出されるケーブル毎に形成され、
前記端面板は、前記切り欠き溝を挿通する前記光ケーブルの外周に巻き付けられた状態で前記切り欠き溝に嵌め込まれるシール用帯部材を備え、
前記シール用帯部材は、一端には厚肉化により前記光ケーブルを位置決めする段差が形成され、前記段差により位置決めされた前記光ケーブルの外周に薄肉の帯部分を巻き付けて該薄肉の帯部分を前記厚肉部の上に重ねることで、前記光ケーブルに密着巻き付けした状態を得ることを特徴とするケーブル接続用クロージャ。
Opening of an end portion of the case for accommodating the connection portion of the optical cable, a cable connecting closure which is closed by end plates having a cable insertion opening,
The cable insertion opening is formed as a notch groove having an opening on the outer periphery of the plate body and is formed for each cable introduced into or led out from the case.
The end surface plate is provided with a sealing strip member to be fitted into the cutout groove while being wound around the outer peripheral of the optical cable inserted through the cutout groove,
The sealing band member is formed at one end with a step for positioning the optical cable by increasing the thickness, and a thin band portion is wound around the outer periphery of the optical cable positioned by the step so that the thin band portion becomes the thickness. A cable connection closure characterized by obtaining a state of being tightly wound around the optical cable by being stacked on a meat part .
前記切り欠き溝は、前記端面板の外周の開口部付近に溝幅を狭めるように形成されて前記シール用帯部材を係止する係止爪を突設させていることを特徴とする請求項1に記載のケーブル接続用クロージャ。 The notch groove is formed so as to narrow the groove width in the vicinity of the opening on the outer periphery of the end face plate, and a locking claw for locking the sealing belt member is provided to project. The cable connection closure according to 1. 前記切り欠き溝には、該切り欠き溝のケーブル挿通方向中間部に、該切り欠き溝に連通するように形成されて該切り欠き溝に嵌め込まれる前記シール用帯部材の膨出部を逃がす中空部が設けられていることを特徴とする請求項1または2に記載のケーブル接続用クロージャ。 The notch groove is formed in a middle portion of the notch groove in the cable insertion direction so as to communicate with the notch groove, and is a hollow that allows the bulging portion of the sealing belt member fitted in the notch groove to escape. cable connecting closure according to claim 1 or 2, characterized in that the parts are provided. 前記シール用帯部材には、前記光ケーブルに巻き付けた際に、ケーブルの太さに応じて余分な部分を切除する位置を示す寸法調整用のマークが付与されていることを特徴とする請求項1〜3のいずれかに記載のケーブル接続用クロージャ。 Wherein the sealing strip member, when wound on the optical cable, according to claim 1 in which marks for dimensional adjustment indicating a position to cut the excess portion in accordance with the thickness of the cable, characterized in that it is applied The closure for cable connection in any one of -3.
JP2006061475A 2006-03-07 2006-03-07 Cable connection closure Expired - Fee Related JP4653676B2 (en)

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GB201101749D0 (en) * 2011-02-01 2011-03-16 Hellermanntyton Data Ltd Storage assembly for fibre-optic cables
JP5115774B2 (en) * 2011-04-18 2013-01-09 Necエンジニアリング株式会社 Clamp structure for optical fiber
GB2546750A (en) * 2016-01-26 2017-08-02 Dexgreen Ltd A cable splice closure

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JP2002536598A (en) * 1999-01-27 2002-10-29 スリーエム イノベイティブ プロパティズ カンパニー End seal assembly for splice case
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03270622A (en) * 1990-03-16 1991-12-02 Daiichi Gijutsu Sangyo Kk Structure of temporary reconnector for cable
JPH0447344U (en) * 1990-08-24 1992-04-22
JPH056301U (en) * 1991-07-12 1993-01-29 日本電信電話株式会社 Closure scale
JPH05276619A (en) * 1991-10-15 1993-10-22 Thomas & Betts Corp <T&B> Cable splicing device
JPH07503839A (en) * 1992-02-18 1995-04-20 ミネソタ・マイニング・アンド・マニュファクチュアリング・カンパニー End seals for cable closures
JPH0833176A (en) * 1994-07-14 1996-02-02 Hitachi Cable Ltd Closure for cable
JPH08242523A (en) * 1995-02-28 1996-09-17 Daiichi Gijutsu Sangyo Kk Sealing tape for cable connection
JPH1042443A (en) * 1996-07-23 1998-02-13 Japan Riicom:Kk End face sealing member for cable wiring closure
JP2001503955A (en) * 1996-11-12 2001-03-21 ミネソタ・マイニング・アンド・マニュファクチャリング・カンパニー Wrap type cable closure end seal
JPH11262161A (en) * 1998-03-09 1999-09-24 Japan Riikomu:Kk End sealing member for cable wiring closure
JP2002536598A (en) * 1999-01-27 2002-10-29 スリーエム イノベイティブ プロパティズ カンパニー End seal assembly for splice case
JP2001136652A (en) * 1999-11-04 2001-05-18 Nec Corp Subscriber metallic cable introduction structure for overhead onu
JP2004015912A (en) * 2002-06-06 2004-01-15 Furukawa Electric Co Ltd:The Sealing member for cable connection box

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