JPS6389809A - Half-divided type branching connection case - Google Patents
Half-divided type branching connection caseInfo
- Publication number
- JPS6389809A JPS6389809A JP23450486A JP23450486A JPS6389809A JP S6389809 A JPS6389809 A JP S6389809A JP 23450486 A JP23450486 A JP 23450486A JP 23450486 A JP23450486 A JP 23450486A JP S6389809 A JPS6389809 A JP S6389809A
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- end plate
- connection case
- diameter
- groove
- 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
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims description 30
- 239000003566 sealing material Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229920006247 high-performance elastomer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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
- G02B6/4442—Cap coupling boxes
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は通信ケーブル外被接続部の気密保持のため使用
する半割型分岐用接続ケースに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a half-split type branch connection case used to maintain airtightness of a communication cable sheath connection.
（従来の技術及び問題点）
第４図は従来のケーブル外被接続部（例えば実願昭５８
−１４３５７２号）の構造を示す。(Prior art and problems) Figure 4 shows a conventional cable jacket connection (for example,
-143572).
第４図のケーブル外被接続部を組み立てるには、ケーブ
ル１上にゴムチューブ５を設置し、接続部両端のケーブ
ル１に把持金具３を取り付けて両端にある把持金具３を
連結棒４により連結した後、心線を接続して心線接続部
２に収納する。心線接続終了後、端面板６のスリン）６
ａを押し広げてゴムチューブ５を設置したケーブル１に
ゴム製端面板を取付け（ケーブル１が不要な部分には閉
塞栓１１を取付ける）、端面板６の外周部のシール材装
着溝にシール材７を装着した後、接続ケース１０の端面
板装着用溝に端面板６を挿入し、上接続ケースを被せて
フランジ９ａの穴にボルトを差し込んで締め付は気密保
持を行っていた。接続ケース１０の材料としてプラスチ
ックを使用する場合にはプラスチックの圧縮クリープを
軽減するためフランジ９ａに金属製当金９ｂを取り付け
る必要があった。このような気密保持構造ではつぎのよ
うな問題点があった。To assemble the cable sheath connection part shown in Figure 4, install the rubber tube 5 on the cable 1, attach the gripping metal fittings 3 to the cable 1 at both ends of the connection part, and connect the gripping metal fittings 3 at both ends with the connecting rod 4. After that, the core wires are connected and stored in the core wire connection section 2. After completing the cable connection, remove the end plate 6)6
Attach a rubber end plate to the cable 1 on which the rubber tube 5 is installed by pushing out the rubber tube 5 (a plug 11 is attached to the part where the cable 1 is not needed), and insert the sealing material into the sealing material installation groove on the outer periphery of the end plate 6. 7, the end plate 6 was inserted into the end plate mounting groove of the connection case 10, the upper connection case was placed on top, and bolts were inserted into the holes of the flange 9a and tightened to maintain airtightness. When plastic is used as the material for the connection case 10, it is necessary to attach a metal stopper 9b to the flange 9a in order to reduce compression creep of the plastic. Such an airtight structure has the following problems.
高信頬気密と解体性を同時に確保するためゴム製端面板
を使用しているが、ケース内の封入ガスによるゴム製端
面板の膨満（ガス圧によってふくれる現象）を軽減する
口約で肉厚を厚くする必要がある。例えば第４図で、Ｊ
ＩＳゴム硬度５０のＥＰＤＭゴムを使った場合、外径１
４ｃｍのゴム製端面板では厚さが４．５Ｃ１１１となっ
ている。Rubber end plates are used to simultaneously ensure airtightness and ease of disassembly, but the rubber end plates are made thicker to reduce the swelling caused by the gas sealed inside the case (a phenomenon in which the rubber end plates swell due to gas pressure). It is necessary to make it thicker. For example, in Figure 4, J
When using EPDM rubber with IS rubber hardness of 50, the outer diameter is 1
A 4 cm rubber end plate has a thickness of 4.5C111.
低温における圧縮永久ひずみ（ゴムの反発力の尺度を示
す）等にすぐれた高性能のゴムを得るには１分間／ １
ｖｍ厚の加硫時間（第４図に示すゴム製端面板の場合
４５分／１個）を必要とし、端面板の外径が大きく （
第４図では１４ｃｍφであるが、大きいものでは２０Ｃ
Ｉ１１φ以上になる）、金型の大きさ、温度制御等を考
慮すると同時に複数個の加硫が困難で高価となる欠点が
あった。1 minute/1 to obtain high-performance rubber with excellent compression set (a measure of the repulsive force of rubber) at low temperatures.
Vm thick vulcanization time (45 minutes/piece in the case of the rubber end plate shown in Figure 4), and the outer diameter of the end plate is large (
In Figure 4, it is 14cmφ, but the larger one is 20C.
(I11φ or more), the size of the mold, temperature control, etc. have to be considered, and at the same time, vulcanization of multiple pieces is difficult and expensive.
また、接続ケースについても、ケース成形後接続ケース
フランジ部および当金のボルト穴加工、当金の接続ケー
スへの取付加工などを要し、高価であった。さらに、ボ
ルト締めを行うためフランジ部が不可欠であり、既設マ
ンホール等に収容する場合、従来の鉛管に比べ横幅がフ
ランジ部だけ大きくなり、鉛管を基本として設計されて
いるマンホールに収容可能なケーブル条数が減るという
収容上の問題があった。In addition, the connection case is expensive because it requires machining of bolt holes for the connection case flange and the stopper after the case is molded, and processing for attaching the stopper to the connection case. Furthermore, the flange part is essential for bolting, and when the cable is housed in an existing manhole, the width is larger at the flange part compared to conventional lead pipes, and the cable length can be accommodated in manholes designed based on lead pipes. There was a problem with accommodating them as their numbers decreased.
また第４図に示す接続ケースの場合、ボルトが片側９箇
所（両側で１８個所）設けられているため、トルクレン
チによるボルト締め作業に長時間を要していた。Further, in the case of the connection case shown in FIG. 4, since bolts are provided at nine locations on one side (18 locations on both sides), it takes a long time to tighten the bolts with a torque wrench.
（問題点を解決するための手段）
本発明はこれらの欠点を除去するため、分岐用接続ケー
スについてケース端部に小径薄肉の端面板の複数個が横
一列に配置できる端面板収納溝を設置し、気密確保のた
めゴム製端面板外周面に巻き付けるシール材押圧用突起
等を工夫したものである。(Means for Solving the Problems) In order to eliminate these drawbacks, the present invention installs an end plate storage groove at the end of the branch connection case in which a plurality of small-diameter, thin-walled end plates can be arranged horizontally in a row. However, in order to ensure airtightness, a protrusion for pressing the sealing material wrapped around the outer peripheral surface of the rubber end plate is devised.
本発明の接続ケースは、気宙信頌性を確保するとともに
低価格のケーブル外被接続部を実現できることに特徴を
有し、従来の技術とは、小径、薄肉ゴム製端面板が横一
列に配置できること、ゴム製端面板外周面に巻き付ける
シール材を長期間気密性が確保できるようシール押圧用
突起が設けられていること、端面板と接する部分のガス
ケット収納溝の幅がガスケット外径より小さい点が異な
っている。以下図面を用いて詳細に説明する。The connection case of the present invention is characterized by ensuring air integrity and realizing a low-cost cable jacket connection. A seal pressing protrusion is provided to ensure long-term airtightness of the sealant wrapped around the outer circumferential surface of the rubber end plate, and the width of the gasket storage groove in the part that contacts the end plate is smaller than the gasket outer diameter. The points are different. This will be explained in detail below using the drawings.
（実施例）
第１図は本発明の接続ケースの適用状況と効果を説明す
るため、接続ケースを用いて組み立てたケーブル外被接
続部の概要を示す図である。第１図（ａ）は一部を破断
した斜視図、第１図（ｂ）は一部破断を入れない場合の
斜視図である。(Example) FIG. 1 is a diagram showing an outline of a cable jacket connection section assembled using a connection case, in order to explain the application situation and effects of the connection case of the present invention. FIG. 1(a) is a partially cutaway perspective view, and FIG. 1(b) is a partially cutaway perspective view.
１２は心線接続部、１３は心線接続部を外力から防護す
るための機械強度保持部である。１４は小径薄肉のゴム
製端面板であって、従来のものでは外径４ｃｍのケーブ
ルに適用した時の大きさは、外径８０、肉厚２．５ｃｍ
であった。しかし本発明に用いるゴム製端面板の外径は
ケーブル外径に対して２〜５ｃｍ程度大きな値に設定さ
れている。この時肉厚は２．５ＣＩｌ＋程度で十分であ
り、外径１４ｃｍの従来のゴム製端面板の厚さ４．５Ｃ
Ｉｌ＋と比較すると５５％の値となっている。端面板１
４の外周面にシール材１５を巻き付ける。１６は本発明
の半割分岐用接続ケースであり、１７は半割接続ケース
１６相互の気密を確保するためのゴム製ガスケット、１
８は気密を確保するため上下の半割分岐用接続ケース１
６を締め付けるためのバンド（例えばステンレス製バン
ド）である。Reference numeral 12 designates a core wire connection portion, and 13 designates a mechanical strength maintaining portion for protecting the core wire connection portion from external force. Reference numeral 14 is a small-diameter, thin-walled rubber end plate; the conventional type has an outer diameter of 80 mm and a wall thickness of 2.5 cm when applied to a cable with an outer diameter of 4 cm.
Met. However, the outer diameter of the rubber end plate used in the present invention is set to be about 2 to 5 cm larger than the cable outer diameter. At this time, a wall thickness of about 2.5 CIl+ is sufficient, and the thickness of a conventional rubber end plate with an outer diameter of 14 cm is 4.5 C.
Compared to Il+, the value is 55%. End plate 1
A sealing material 15 is wrapped around the outer peripheral surface of 4. 16 is a connection case for half-split branching of the present invention; 17 is a rubber gasket for ensuring airtightness between the half-split connection cases 16;
8 is the connection case 1 for the upper and lower half-split branches to ensure airtightness.
6 (for example, a stainless steel band).
第２図は、本発明の半割分岐用接続ケース１６の構造を
示す図であり、片側３条までのケーブルが導入できる下
接続ケースの一部を示す。１９は端面板収納用溝、２０
ａ、 ２０ｂはシール材押圧用突起、２１はバンドで締
め付けるための突出部、２２は上下接続ケースを嵌合し
やすくするための突起、２３はガスケット装着用溝であ
る。主接続ケースにはガスケット装着用溝２３がなく、
嵌合用突起が下ケースのそれと重ならないようになって
いる以外、上下対称になっている。FIG. 2 is a diagram showing the structure of the halved branch connection case 16 of the present invention, and shows a part of the lower connection case into which up to three cables can be introduced on one side. 19 is a groove for storing the end plate, 20
20a and 20b are projections for pressing the sealing material, 21 is a projection for tightening with a band, 22 is a projection for facilitating fitting of the upper and lower connection cases, and 23 is a gasket mounting groove. The main connection case does not have a gasket mounting groove 23,
It is vertically symmetrical except that the fitting protrusion does not overlap with that of the lower case.
前述のように、本発明の接続ケースを用いると低価格で
マンホール収容が容易であるが、気密信軌性確保のため
接続ケースに工夫が必要である。As mentioned above, the connection case of the present invention is inexpensive and easy to accommodate in a manhole, but the connection case requires some ingenuity to ensure airtightness and reliability.
小径端面板を用いた分岐用外被接続部を考えると、小径
端面板１４を横一列に並べる以外に方法がない。端面板
１４の外径は端面板収納溝１９の内径より大きく設計し
、端面板（ゴム製）を圧縮して気密を確保することにな
るが、端面板を横一列に並べようとすると端面板外径と
端面板収納溝の内径の差を余り大きくとることができな
い０両者の差を大きくすると複数の端面板を横一列にな
らべることが物理的にできなくなる。両者の差が比較的
小さい状態で気密を保つため、接続ケースにつぎのよう
な工夫がなされている。When considering a branch jacket connection section using small-diameter end plates, there is no other way than to arrange the small-diameter end plates 14 in a horizontal row. The outer diameter of the end plate 14 is designed to be larger than the inner diameter of the end plate storage groove 19, and the end plate (made of rubber) is compressed to ensure airtightness. The difference between the outer diameter and the inner diameter of the end plate storage groove cannot be made too large.If the difference between the two is increased, it becomes physically impossible to arrange a plurality of end plates in a horizontal row. In order to maintain airtightness while keeping the difference between the two relatively small, the connection case has been devised as follows.
（１）端面板・ガスケット間の気密のための工夫第３図
に接続ケースの端面板・ガスケット間の気密部を示す。(1) Ideas for airtightness between the end plate and gasket Figure 3 shows the airtight area between the end plate and gasket of the connection case.
ケース端部以外では同図に示すようにガスケット装着用
溝２３の幅がガスケント１７の外径より大きく設計され
、上ケースによりガスケット１７が圧縮されたときの逃
げの部分２４を設けている。同一寸法にすると、ケース
端末部で端面板１４とガスケット１７の接触力が極めて
弱くなり長期気密保持ができない、長期気密を確保する
ため、ガスケット装着用溝２３の幅をガスケット１７の
外径以下にして両者の接触力を大きくしている。As shown in the figure, in areas other than the case ends, the width of the gasket mounting groove 23 is designed to be larger than the outer diameter of the gasket 17, and a relief portion 24 is provided when the gasket 17 is compressed by the upper case. If the dimensions are the same, the contact force between the end plate 14 and the gasket 17 at the end of the case will be extremely weak, making it impossible to maintain airtightness for a long time.To ensure long-term airtightness, the width of the gasket mounting groove 23 is set to be less than or equal to the outer diameter of the gasket 17. This increases the contact force between the two.
（２）端面板と端面板収納溝間の気密のための工夫前述
のように上下ケースを締め付けても端面板を大きく変化
させて圧縮力を確保することができない。このため、端
面板に加わる圧縮力が小さくても気密が確保できるよう
に、端面板収納溝１９内にシール材押圧用突起２０（断
面が半円状）を設けることによりシール材１５を押圧し
、結果的に端面板と端面板収納溝１９間の接触圧力を高
くして気密確保している。同様な理由から、横一列に並
べた端面板１４相互の接触部においては、シール材押圧
用突起２０の断面が円形をなし、上下ケースを完全に締
め付けたとき突起相互が接するように設計されている。(2) Invention for airtightness between the end plate and the end plate storage groove As mentioned above, even if the upper and lower cases are tightened, the end plate cannot be changed significantly and compressive force cannot be secured. Therefore, in order to ensure airtightness even when the compressive force applied to the end plate is small, a sealing material pressing protrusion 20 (having a semicircular cross section) is provided in the end plate storage groove 19 to press the sealing material 15. As a result, the contact pressure between the end plate and the end plate storage groove 19 is increased to ensure airtightness. For the same reason, the sealing material pressing protrusions 20 are designed to have a circular cross section at the mutually contacting portions of the end plates 14 arranged horizontally, so that the protrusions come into contact with each other when the upper and lower cases are completely tightened. There is.
（３）締付力確保のための工夫
端面板を横一列に配置してバンドで締め付ける場合、締
付力は両端部から中央部の方向に働き、特に中央部の端
面板に上下から働く力は極めて小さくなり、振動、曲げ
などの外力に対して抵抗力が小さくなる。このため、第
１図（ｂ）に示すように中央のケーブル導入部には突出
部２１を設け、バンドで締め付けることを可能にしてい
る。(3) Ideas for securing tightening force When the end plates are arranged horizontally in a row and tightened with a band, the tightening force acts from both ends toward the center, and especially the force that acts on the center end plate from above and below. becomes extremely small, and resistance to external forces such as vibration and bending becomes small. For this reason, as shown in FIG. 1(b), a protrusion 21 is provided at the central cable introduction section to enable tightening with a band.
なお説明ではゴムないしゴム製と表現されているが、同
様な性能を示す弾性体が使用できることはもちろんであ
る。In the description, it is expressed as rubber or made of rubber, but it goes without saying that an elastic body with similar performance can be used.
（発明の効果）
以上説明したように、本発明の接続ケースを使用すれば
小径端面板複数個を収納しても気密が確保でき、かつ小
径薄肉のゴム製端面板、フランジ部がなく二次加工不要
な接続ケースになることから低価格が実現できる。(Effects of the Invention) As explained above, by using the connection case of the present invention, airtightness can be ensured even when multiple small-diameter end plates are housed, and small-diameter, thin-walled rubber end plates, secondary Since the connection case does not require any processing, the price can be reduced.
また、フランジ部がないことから、接続部の横幅が短か
くなりマンホール内に収容しやすく、金属製バンドの採
用によりネジの締付数が減って作業性が向上するため通
信ケーブルの外被接続部に適用できる。In addition, since there is no flange, the width of the connection part is shortened, making it easier to accommodate inside a manhole, and the use of a metal band reduces the number of screws to be tightened, improving workability, allowing communication cables to be connected to the outer sheath. Applicable to the Department.
特に本発明の接続ケースを用いたケーブル外被接続部が
第１図のようになっているのでつぎのような効果がでて
くる。In particular, since the cable jacket connection portion using the connection case of the present invention is as shown in FIG. 1, the following effects can be obtained.
（１） 端面板の小径薄肉化や、端面板外径を小さく
することにより、従来の端面板を製造する金型の大きさ
く面積）で複数個の小径端面板が同時に製造できるよう
になることから加工費の低減を図ることができる。また
、端面板を小径化すると端面板に加わる封入ガス圧の影
響が少なくなり薄肉化ができる結果、加硫時間の短縮が
実現でき、加工費が低減できる。また当然のことながら
、体積が小さくなり材料費が低減でき端面板が低価格と
なる。(1) By making the end plate smaller in diameter and thinner, and by reducing the outer diameter of the end plate, it is now possible to manufacture multiple small diameter end plates at the same time using the larger area of the mold used to manufacture conventional end plates. It is possible to reduce processing costs. Further, by reducing the diameter of the end plate, the influence of the sealed gas pressure applied to the end plate is reduced and the wall can be made thinner, resulting in a reduction in vulcanization time and processing costs. Also, as a matter of course, the volume becomes smaller, the material cost is reduced, and the end plate becomes less expensive.
（２）第１図から分かるように、接続ケースにフランジ
がないため従来の接続ケースで必要であったフランジ、
当金にあけられたボルト穴加工、当金の接続ケースへの
取付けなどの加工が不要であり、接続ケースの価格が大
幅に低減できる。(2) As can be seen from Figure 1, there is no flange on the connection case, so the flange, which was required in the conventional connection case,
There is no need for processing such as drilling bolt holes in the metal and attaching the metal to the connection case, and the price of the connection case can be significantly reduced.
（３）接続ケースのフランジ部がなく、接続ケース断面
が円形であるため従来の接続ケースより横幅が狭くなり
マンホール収容に都合がよい。(3) Since there is no flange part of the connection case and the cross section of the connection case is circular, the width is narrower than that of the conventional connection case, making it convenient for manhole accommodation.
（４）バンド数が７〜８本で済むため締付は作業が大幅
に短縮できる。(4) Since only 7 to 8 bands are required, the tightening work can be significantly shortened.
第１図は本発明接続ケースを用いたケーブル外被接続部
の構造を示す図、
第２図は本発明の半割分岐用接続ケースの構造を示す図
、
第３図は端面板とガスケット接合の拡大図、第４図は従
来のケーブル外被接続部の構造を示す図である。
１・・・ケーブル ２・・・心線接続部３・・
・把持金具 ４・・・連結棒５・・・ゴムチュ
ーブ ６・・・ゴム製端面板６ａ・・・スリット
７・・・シール材８・・・ゴム製ガスケット
９ａ・・・フランジ９ｂ・・・金属製当金 １０
・・・接続ケース１１・・・閉塞栓 １２・
・・心線接続部１３・・・機械強度保持部 １４・・
・ゴム製端面板（小径）１５・・・シール材
１６・・・半割接続ケース１７・・・ゴム製ガスケット
１８・・・バンド１９・・・端面板収納溝
２０、２０ａ、 ２０ｂ・・・シール材押圧用突起２１
・・・突出部 ２２・・・ケース嵌合用突起
２３・・・ガスケット装着用溝
２４・・・逃げ部分
特許 出 願人 日本電信電話株式会社第１図
第２図
Ｉ
第３図
２４−逃す”部亭
第４図
ｆ −ｍ−が一アル
４−・遣槌捧
５・・−コ″Ａ今ニーア
ロ・・・ス°Ａ％Ｃ毛（１１木之
６ａ・・・スリット
７・・−シール材
ｅ・−コ゛ム櫓昂Ｊ力゛スケ÷ト
ｆｆ−・間月番桧Figure 1 is a diagram showing the structure of the cable jacket connection part using the connection case of the present invention, Figure 2 is a diagram showing the structure of the connection case for half-split branching of the present invention, and Figure 3 is the end plate and gasket connection. FIG. 4 is an enlarged view showing the structure of a conventional cable jacket connection section. 1... Cable 2... Core wire connection part 3...
・Grip fitting 4...Connecting rod 5...Rubber tube 6...Rubber end plate 6a...Slit
7...Seal material 8...Rubber gasket
9a...Flange 9b...Metal dowel 10
... Connection case 11 ... Blocking plug 12.
... Core wire connection section 13 ... Mechanical strength maintaining section 14 ...
・Rubber end plate (small diameter) 15...Sealing material
16... Half-split connection case 17... Rubber gasket 18... Band 19... End plate storage grooves 20, 20a, 20b... Seal material pressing protrusion 21
... Projection 22 ... Case fitting protrusion 23 ... Gasket attachment groove 24 ... Escape portion patent Applicant Nippon Telegraph and Telephone Corporation Fig. 1 Fig. 2 I Fig. 3 24-Escape” Partei Fig. 4f -m- 1 Al 4-・Ketsutsuke 5...-Co'' Material E・-Column Tower J Power Skate FF-・Masukibanhi
Claims (1)
薄肉のゴム製端面板を収納する溝を複数個、横一列に配
置し、ゴム製端面板外周面に装着されるシール材を押圧
するため前記各ゴム製端面板収納溝内に設けた断面が半
円形状をなし、ゴム製端面板相互の接触部において断面
が円形状をなすシール材押圧用突起を有し、ゴム製端面
板とガスケットが接する部分のガスケット装着用溝の幅
がガスケットより小さいことを特徴とする半割型分岐用
接続ケース。1. Multiple grooves are arranged horizontally in a row to accommodate a small diameter thin rubber end plate with a hole for passing the cable concentrically with the outer circumference, and the sealing material attached to the outer circumferential surface of the rubber end plate is pressed. In order to do this, each rubber end plate storage groove has a semicircular cross section, and a sealing material pressing protrusion with a circular cross section is provided at the contact portion of the rubber end plate. A half-split type branch connection case characterized in that the width of the gasket mounting groove in the part where the gasket contacts the gasket is smaller than the gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23450486A JPH0731290B2 (en) | 1986-10-03 | 1986-10-03 | Half split type branch connection case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23450486A JPH0731290B2 (en) | 1986-10-03 | 1986-10-03 | Half split type branch connection case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6389809A true JPS6389809A (en) | 1988-04-20 |
| JPH0731290B2 JPH0731290B2 (en) | 1995-04-10 |
Family
ID=16972064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23450486A Expired - Lifetime JPH0731290B2 (en) | 1986-10-03 | 1986-10-03 | Half split type branch connection case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731290B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682648A (en) * | 1992-01-28 | 1994-03-25 | American Teleph & Telegr Co <Att> | Optical fiber connecting device |
| JPH10246816A (en) * | 1997-03-03 | 1998-09-14 | Fujikura Ltd | Closure for optical fiber cable |
| US8718434B2 (en) | 2008-07-01 | 2014-05-06 | Adc Telecommunications, Inc. | Cable enclosure with sealed cable entry port |
| USRE45951E1 (en) | 2007-01-16 | 2016-03-29 | Commscope Technologies Llc | Cable enclosure assemblies and methods for using the same |
-
1986
- 1986-10-03 JP JP23450486A patent/JPH0731290B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682648A (en) * | 1992-01-28 | 1994-03-25 | American Teleph & Telegr Co <Att> | Optical fiber connecting device |
| JPH10246816A (en) * | 1997-03-03 | 1998-09-14 | Fujikura Ltd | Closure for optical fiber cable |
| USRE45951E1 (en) | 2007-01-16 | 2016-03-29 | Commscope Technologies Llc | Cable enclosure assemblies and methods for using the same |
| USRE46547E1 (en) | 2007-01-16 | 2017-09-12 | Commscope Technologies Llc | Cable enclosure assemblies and methods for using the same |
| US8718434B2 (en) | 2008-07-01 | 2014-05-06 | Adc Telecommunications, Inc. | Cable enclosure with sealed cable entry port |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731290B2 (en) | 1995-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |