JPH07120626A - Cable connecting box - Google Patents
Cable connecting boxInfo
- Publication number
- JPH07120626A JPH07120626A JP5285813A JP28581393A JPH07120626A JP H07120626 A JPH07120626 A JP H07120626A JP 5285813 A JP5285813 A JP 5285813A JP 28581393 A JP28581393 A JP 28581393A JP H07120626 A JPH07120626 A JP H07120626A
- Authority
- JP
- Japan
- Prior art keywords
- band
- sleeve
- cable
- half sleeve
- fastened
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
- G02B6/4447—Cable boxes, e.g. splicing boxes with two or more multi fibre cables with divided shells
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Connection Or Junction Boxes (AREA)
- Cable Accessories (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、光ファイバケーブルな
どの接続部に用いるケーブル接続箱の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cable connection box used for a connecting portion such as an optical fiber cable.
【0002】[0002]
【従来技術】光ファイバケーブルなどの接続部には、水
や湿気が入らないようにする必要がある。そこで、シー
ル機能を有するケーブル接続箱(クロージャ)を用いて
ケーブル接続部を保護している。ケーブル接続箱は再接
続のために開閉できる必要があるので、機械的に組み立
てることができ、作業性のよいメカニカルシールが主に
用いられている。従来のメカニカルシールタイプ、例え
ばバンド締結型のケーブル接続箱は、図3(a)、
(b)に示す構造をしている。このケーブル接続箱は、
2個の半割りスリーブ1を対向するように側端断面で合
わせた、断面が略四角形の箱からなっている。2個の半
割りスリーブ1は両側端断面にパッキング溝を有し、パ
ッキング2を介して金属バンド3で締めつけられて、水
密、気密な箱を形成する。4はバンド締め具である。2. Description of the Related Art It is necessary to prevent water and moisture from entering a connecting portion such as an optical fiber cable. Therefore, a cable connection box (closure) having a sealing function is used to protect the cable connection portion. Since the cable junction box needs to be opened and closed for reconnection, mechanical seals that can be mechanically assembled and have good workability are mainly used. A conventional mechanical seal type, for example, a band fastening type cable connection box is shown in FIG.
It has the structure shown in FIG. This cable junction box
The two half sleeves 1 are made of a box having a substantially quadrangular cross section in which side end cross sections are joined so as to face each other. The two half sleeves 1 have packing grooves on both end cross sections, and are fastened with a metal band 3 via the packing 2 to form a watertight and airtight box. 4 is a band fastener.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上述の
ケーブル接続箱には、次のような問題があった。即ち、
バンド3の締結時に、バンド3が円形になろうとして、
スリーブ側面に押圧を与えるため、略四角形の箱断面
は、図4に示すように、両側面が凹み、さらに、スリー
ブの四隅の角をA、B、C、Dとすると、これら四隅の
角にしか力を加えることができないため、A−B間、C
−D間が膨らんで円形になる傾向がある。その結果、図
4に示すように、半割りスリーブ1の合わせ目のパッキ
ング2は十分に機能を果たさず、ガスリークを起こす恐
れがあった。そこで、この半割りスリーブの変形を抑え
るために、半割りスリーブの肉厚を厚くして、剛性を上
げると、箱の重量が大きくなるという問題があった。However, the above cable connection box has the following problems. That is,
When the band 3 is fastened, the band 3 tries to be circular,
In order to apply pressure to the side surface of the sleeve, the box cross section of the substantially quadrangle is concave on both side surfaces as shown in FIG. Since you can only apply force, between A and B, C
The area between -D tends to swell and become circular. As a result, as shown in FIG. 4, the packing 2 at the joint of the half sleeve 1 did not sufficiently function, and there was a risk of causing a gas leak. Therefore, if the wall thickness of the half sleeve is increased to increase the rigidity in order to suppress the deformation of the half sleeve, there is a problem that the weight of the box increases.
【0004】[0004]
【課題を解決するための手段と作用】本発明は上記問題
点を解決したケーブル接続箱を提供するもので、横断面
が略四角形であって、ケーブルの長手方向に2分割され
た半割りスリーブをバンドで締結したケーブル接続箱に
おいて、前記半割りスリーブの周上のバンド締結部の略
中央付近に、半割りスリーブとバンドの間に凸状物を介
在させ、締結したバンドは前記凸状物で半割りスリーブ
を押圧することを第1発明とし、前記発明において、バ
ンドに凸状物を設けたことを第2発明とするものであ
る。上述のような構造のケーブル接続箱では、スリーブ
組み立て時に、バンドで半割りスリーブを締めつけてい
く過程において、バンドは四隅の角で半割りスリーブを
直接押圧するとともに、凸状物を介して半割りスリーブ
を外側から内側に押圧するので、半割りスリーブが外側
に膨らんで、箱断面が円形に変形することがない。従っ
て、バンドで半割りスリーブを締結しても、半割りスリ
ーブの合わせ目のパッキングは十分に機能を果たし、水
密性、気密性を確保することができる。なお、横断面が
略四角形であるスリーブに本発明は適用されるが、略四
角形の意味は、バンド締結した際に、バンドがスリーブ
の四隅に押圧を与え、半割りスリーブの略中央部には押
圧を与えないため、半割りスリーブが外側に膨らむよう
な形状ということである。SUMMARY OF THE INVENTION The present invention provides a cable connection box which solves the above-mentioned problems. It has a substantially rectangular cross section and is divided into two halves in the longitudinal direction of the cable. In the cable connection box in which the band is fastened with a band, a convex object is interposed between the half sleeve and the band near the center of the band fastening portion on the circumference of the half sleeve, and the fastened band is the convex object. The first invention is to press the half sleeve with, and the second invention is that the band is provided with a convex object in the above invention. In the cable connection box with the above structure, when assembling the sleeve, during the process of tightening the half sleeve with the band, the band directly presses the half sleeve at the corners of the four corners, and the half sleeve is pressed through the convex object. Since the sleeve is pressed from the outside to the inside, the half sleeve does not bulge outward and the box cross section is not deformed into a circular shape. Therefore, even if the half sleeves are fastened with the band, the packing of the joints of the half sleeves sufficiently functions, and the watertightness and airtightness can be secured. Although the present invention is applied to a sleeve whose cross section is substantially quadrangular, the meaning of substantially quadrangular means that when the band is fastened, the band exerts pressure on the four corners of the sleeve, and the substantially central portion of the half sleeve is This means that the half-sleeve swells outward because no pressure is applied.
【0005】[0005]
【実施例】以下、図面に示した実施例に基づいて本発明
を詳細に説明する。図1は、本発明にかかるケーブル接
続箱の一実施例の断面説明図である。本実施例は、繊維
強化ポリプロピレンからなる略四角形の筒の半割りから
なる半割りスリーブ11を、ステンレス製のバンド12
で締結して形成されている。バンド12には、半割りス
リーブ11の周上の略中央に位置する部分に凸状物13
が設けられている。14はパッキング、15はバンド締
め具である。図2(a)、(b)は、それぞれ締結した
状態の上記バンドの正面図および側面図である。バンド
12は凸状物13で半割りスリーブ11を内側に押圧し
て、半割りスリーブ11が外側に膨らんで円形になるの
を抑えている。なお、凸状物はバンドの半割りスリーブ
に面する側に設けられるとは限らず、バンドと半割りス
リーブ周上の間に単に介在するだけでもよい。また、半
割りスリーブの形状は上記実施例に限定されず、半楕円
などでもよいことは言うまでもない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. FIG. 1 is a cross-sectional explanatory view of an embodiment of a cable junction box according to the present invention. In this embodiment, a half sleeve 11 made of half a substantially rectangular tube made of fiber reinforced polypropylene is attached to a stainless steel band 12.
It is formed by fastening. The band 12 has a convex-shaped object 13 at a portion located substantially in the center of the circumference of the half sleeve 11.
Is provided. 14 is packing and 15 is a band fastener. FIGS. 2A and 2B are a front view and a side view of the band in a fastened state, respectively. The band 12 presses the half-sleeve 11 inward with the convex member 13 to prevent the half-sleeve 11 from expanding outward and becoming circular. The convex object is not necessarily provided on the side of the band facing the half sleeve, and may be simply interposed between the band and the circumference of the half sleeve. Further, it goes without saying that the shape of the half sleeve is not limited to the above embodiment and may be a half ellipse or the like.
【0006】[0006]
【発明の効果】以上説明したように本発明によれば、横
断面が略四角形であって、ケーブルの長手方向に2分割
された半割りスリーブをバンドで締結したケーブル接続
箱において、前記半割りスリーブの周上のバンド締結部
の略中央付近に、半割りスリーブとバンドの間に凸状物
を介在させ、締結したバンドは前記凸状物で半割りスリ
ーブを押圧するので、半割りスリーブの合わせ目のパッ
キングは十分に機能を果たし、ガスリークを起こす恐れ
はないという優れた効果がある。As described above, according to the present invention, in a cable connection box having a substantially rectangular cross section and a half sleeve divided in two in the longitudinal direction of the cable is fastened with a band, the half sleeve is used. A convex object is interposed between the half sleeve and the band near the center of the band fastening portion on the circumference of the sleeve, and the tightened band presses the half sleeve with the convex object. The packing of the seams works well and has the excellent effect that there is no risk of gas leaks.
【図1】本発明に係るケーブル接続箱の一実施例の断面
図である。FIG. 1 is a cross-sectional view of an embodiment of a cable junction box according to the present invention.
【図2】(a)、(b)は、それぞれ上記実施例におけ
る締結した状態のバンドの正面図および側面図である。2A and 2B are respectively a front view and a side view of a band in a fastened state in the above embodiment.
【図3】(a)、(b)は、それぞれ従来のケーブル接
続箱の側面図および断面図である。3A and 3B are a side view and a sectional view of a conventional cable junction box, respectively.
【図4】従来のケーブル接続箱の問題点の説明図であ
る。FIG. 4 is an explanatory view of problems of the conventional cable connection box.
【符号の説明】 11 半割りスリーブ 12 バンド 13 凸状物 14 パッキング 15 バンド締め具[Explanation of Codes] 11 Half Sleeve 12 Band 13 Convex Object 14 Packing 15 Band Fastener
フロントページの続き (72)発明者 河村 隆 東京都千代田区丸の内2丁目6番1号 古 河電気工業株式会社内Front page continued (72) Inventor Takashi Kawamura 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd.
Claims (2)
長手方向に2分割された半割りスリーブをバンドで締結
したケーブル接続箱において、前記半割りスリーブの周
上のバンド締結部の略中央付近に、半割りスリーブとバ
ンドの間に凸状物を介在させ、締結したバンドは前記凸
状物で半割りスリーブを押圧することを特徴とするケー
ブル接続箱。1. A cable connection box having a substantially rectangular cross section and having a half sleeve divided in the longitudinal direction of the cable fastened by a band, in the center of a band fastening portion on the circumference of the half sleeve. A cable connection box characterized in that a convex object is interposed between a half sleeve and a band in the vicinity, and the tightened band presses the half sleeve with the convex object.
る請求項1記載のケーブル接続箱。2. The cable junction box according to claim 1, wherein the band is provided with a convex object.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28581393A JP3316280B2 (en) | 1993-10-20 | 1993-10-20 | Cable junction box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28581393A JP3316280B2 (en) | 1993-10-20 | 1993-10-20 | Cable junction box |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07120626A true JPH07120626A (en) | 1995-05-12 |
JP3316280B2 JP3316280B2 (en) | 2002-08-19 |
Family
ID=17696425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28581393A Expired - Lifetime JP3316280B2 (en) | 1993-10-20 | 1993-10-20 | Cable junction box |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3316280B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008015382A (en) * | 2006-07-07 | 2008-01-24 | Chugoku Electric Power Co Inc:The | Closure for cable connection |
JP2010113243A (en) * | 2008-11-07 | 2010-05-20 | Fujikura Ltd | Auxiliary tube |
-
1993
- 1993-10-20 JP JP28581393A patent/JP3316280B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008015382A (en) * | 2006-07-07 | 2008-01-24 | Chugoku Electric Power Co Inc:The | Closure for cable connection |
JP2010113243A (en) * | 2008-11-07 | 2010-05-20 | Fujikura Ltd | Auxiliary tube |
Also Published As
Publication number | Publication date |
---|---|
JP3316280B2 (en) | 2002-08-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5058907A (en) | Pipe joint gasket with annular anchoring heel | |
AU639697B2 (en) | Gasket with an annular anchoring heel | |
US3877733A (en) | Pipe coupling | |
US4147368A (en) | Pipe seal | |
US4371179A (en) | T-Shaped sealing ring with elongated lip | |
KR100560438B1 (en) | Polymer material collar pipe | |
JPH0227549B2 (en) | ||
KR20000075397A (en) | Pipe coupling that has enhanced the earthquake-proof and sealing property | |
JPH07120626A (en) | Cable connecting box | |
JPH0321169Y2 (en) | ||
JPH0726806U (en) | Cable junction box | |
KR970001571Y1 (en) | Seal packing in valve device | |
JP3880166B2 (en) | Pipe and case seal structure | |
JP2000104870A (en) | Pipe coupling | |
JPH075353Y2 (en) | Sealing structure for split split pipe fittings | |
JP3666919B2 (en) | Expansion and waterproofing joint | |
KR200152777Y1 (en) | Joint for a water pipe | |
JP2002030892A (en) | Segment | |
JPH021591Y2 (en) | ||
KR200152778Y1 (en) | Rubber ring for joint of a water pipe | |
JPS5936789Y2 (en) | Packing for pipe fittings | |
KR890003131Y1 (en) | Pipe joints | |
JP2561601B2 (en) | Concrete pipe fittings | |
KR20040038121A (en) | Device for connecting a connection part of corrugatde pipe | |
JPH0332875Y2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080607 Year of fee payment: 6 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090607 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090607 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100607 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100607 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110607 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120607 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120607 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130607 Year of fee payment: 11 |
|
EXPY | Cancellation because of completion of term |