JP2004015912A - Sealing member for cable connection box - Google Patents

Sealing member for cable connection box Download PDF

Info

Publication number
JP2004015912A
JP2004015912A JP2002165647A JP2002165647A JP2004015912A JP 2004015912 A JP2004015912 A JP 2004015912A JP 2002165647 A JP2002165647 A JP 2002165647A JP 2002165647 A JP2002165647 A JP 2002165647A JP 2004015912 A JP2004015912 A JP 2004015912A
Authority
JP
Japan
Prior art keywords
seal
cable
outer peripheral
connection box
cable connection
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.)
Pending
Application number
JP2002165647A
Other languages
Japanese (ja)
Inventor
Naoshi Ninomiya
二ノ宮 尚士
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP2002165647A priority Critical patent/JP2004015912A/en
Publication of JP2004015912A publication Critical patent/JP2004015912A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Connection Or Junction Boxes (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Cable Accessories (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing member that is arranged at a cable lead-in part of a cable connection box and is easy-to-manufacture with sealing performance set at a degree of drip-proof performance. <P>SOLUTION: The sealing member 22 has a cut 28 at a part in a circumferential direction and comprises a sealing body 24 made of soft rubber that is formed annularly when cut faces 28a and 28b of the cut are made to abut against each other, and reinforcing frame bodies 26 made of synthetic resins integrally installed at corners of both sides of the external peripheral surface of the sealing body 24. The reinforcing frame bodies 26 comprise an end face wall 26a adhered to the end face external periphery of the sealing body 24, and a peripheral face wall 26b adhered to the side rim of the external peripheral face of the sealing body, respectively, and also comprise connecting parts 32, 34 that keep the cut faces 28a, 28b of the sealing body 24 in a state of abutting against each other at both ends in the circumferential direction. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】本発明は、ケーブル接続箱のケーブル導入口に設置されるケーブル接続箱用シール部材に関するものである。
【0002】
【従来の技術】従来、光ケーブルを接続箱に導入する部分では、図7に示すような防水処理が行われていた。この防水処理方法は、まず(A)に示すように光ケーブル10に第一のシール材12Aを巻き付け、その外周に周方向の1箇所に割りの入った環状端面板14(ゴムパッキン、硬度はコーン針入度55程度)を装着する。次に(B)に示すように端面板14の割り面の間に第二のシール材12Bを差し込んで、はみ出した部分(斜線部分)を切り取る。次にその外周に(C)に示すようにステンレスワイヤ16を巻いて締め付ける。16aはステンレスワイヤ16の両端部を捻った部分である。次にその外周に(D)に示すように第三のシール材12Cを巻き付け、離型テープ18を剥がす。最後に(E)に示すように二つ割り型のケーブル接続箱20のシール部内周面で第三のシール材12Cの外周を挟み付けて、防水構造とする。この構造で98kPa以上の耐水圧性能を得ることができる。
【0003】
【発明が解決しようとする課題】しかし従来のケーブル導入部の防水構造は、防滴性程度のシール性能が要求される場合には過剰性能になっている。また部品点数が多く、工法が複雑で手間がかかる。またシール材又はテープの巻き付けに技術を要するため、作業者によって防水性能に差がでる懸念がある。
【0004】本発明の目的は、以上のような問題点に鑑み、シール性能を防滴性程度に設定し、工法が簡単なケーブル接続箱用シール部材を提供することにある。
【0005】
【課題を解決するための手段】この目的を達成するため本発明は、ケーブル接続箱のケーブル導入部に設置されるシール部材であって、周方向の1箇所に割りが入っていて割り面を突き合わせると環状になる軟質ゴム製のシール本体と、このシール本体の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体とからなり、前記補強枠体は、シール本体の端面外周部に密着する端面壁部と外周面側縁に密着する周面壁部とを有すると共に、周方向の両端に前記シール本体の割り面を突き合わせた状態に保持する連結部を有していることを特徴とするものである。
【0006】このシール部材は、割り面を開いてケーブル外周に装着した後、割り面を突き合わせるようにして補強枠体の連結部を連結するだけで、シール本体のゴム弾性でケーブル外周面に密接させることができると共に、割り面を密接させることができる。したがってこのあとは従来同様、ケーブル接続箱でシール部材を挟み付けるだけで防水構造にすることができる。
【0007】上記のケーブル接続箱用シール部材における補強枠体は、周方向の中間部に、端面壁部に径方向の切込みを入れることによりヒンジ部を形成したものとすることが好ましい。このようなヒンジ部を形成しておくと、割り面の開閉をより容易に行えるようになる。
【0008】本発明のケーブル接続箱用シール部材は、シール本体の両端面内周部が凹型のテーパー面になっていることが好ましい。このような形にすると、シール本体の内周部の弾性変形量を大きくすることができ、適用ケーブル外径の範囲を拡大することが可能となる。
【0009】また本発明のケーブル接続箱用シール部材は、補強枠体の外面間の寸法が、ケーブル接続箱のシール部材収容凹部の両端壁の間隔より大きく設定されていることが好ましい。このようにすると、ケーブル外周に装着したシール部材を、ケーブル接続箱の収容凹部に押し込むときに、シール本体が補強枠体の端面壁部に圧迫されて、シール本体の外周面が外側に盛り上がるので、ケーブル接続箱内周面とシール本体外周面とがよく密接し、防水性能が向上する。
【0010】また本発明のケーブル接続箱用シール部材は、二つに分割されていて分割面を突き合わせると環状になる軟質ゴム製の一対の半割りシール本体と、それぞれの半割りシール本体の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体とからなり、前記補強枠体は、半割りシール本体の端面外周部に密着する端面壁部と外周面側縁に密着する周面壁部とを有すると共に、周方向の両端に前記一対の半割りシール本体を分割面を突き合わせた状態に保持する連結部を有している構成とすることもできる。
【0011】また本発明のケーブル接続箱用シール部材は、軟質ゴム製の環状シール本体と、この環状シール本体の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体とからなり、前記補強枠体は、環状シール本体の端面外周部に密着する端面壁部と外周面側縁に密着する周面壁部とを有している構成とすることもできる。
【0012】また本発明のケーブル接続箱用シール部材は、外周面に周方向の溝を有する合成樹脂製の円板状部材と、この円板状部材の外周面の溝に装着された軟質ゴム製の環状シール材とからなり、環状シール材の外周部が円板状部材の外周面から突出している構成とすることもできる。このシール部材は、ケーブル接続箱にケーブル導入口が複数設けられている場合に、ケーブルが導入されないケーブル導入口を塞いでおくのに使用される。
【0013】
【発明の実施の形態】以下、本発明の実施の形態を、図面を参照して詳細に説明する。
【0014】
〔実施形態1〕 図1ないし図3は本発明の一実施形態を示す。このケーブル接続箱用シール部材22は、軟質ゴム製のシール本体24と、このシール本体22の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体26とから構成されている。
【0015】シール本体24は、周方向の1箇所に割り28が入っていて、割り面28a、28bを突き合わせると環状になるように形成されている。シール本体24用の軟質ゴムの硬度はコーン針入度で85程度である。このような低硬度ゴムを使用することにより、従来用いられていたシール材(粘着テープ)を不要とし、適用ケーブル外径の範囲を広げることが可能である。
【0016】補強枠体26は、シール本体24の端面外周部に密着する端面壁部26aと外周面側縁に密着する周面壁部26bとを有する断面略L字形のものである。つまり両コーナー部の補強枠体26はシール本体24の外周部を挟み付けた状態となっている。両コーナー部の補強枠体26の間にはシール本体24の外周面が露出していて、この露出面は、補強枠体26の周面壁部26bの外周面と同一面かそれより外側へ盛り上がるように形成されている。
【0017】また補強枠体26の両端には、シール本体24の割り面28a、28bにめり込むように割り面壁部30が形成されている。さらに相対する割り面壁部30の一方には突起32が、他方には穴34が形成されている。穴34の内径は突起32の外径よりも若干小さく形成されており、穴34に突起32を無理に押し込むことで、補強枠体26の両端が連結されるようになっている。補強枠体26の両端が連結されると、シール本体24の割り面28a、28bが突き合わされ、シール本体24が環状に保持される。割り面28a、28bが突き合わされた状態のシール本体24の内径Dはケーブル10の外径Dより小さく設定されている。特にシール本体24は軟質ゴムで形成されているため圧縮変形量が大きく、適用ケーブル外径の範囲が広いので、上記シール本体24の内径Dは適用ケーブル外径の範囲の最小ケーブル外径Dより若干小さくなる程度に設定されている。
【0018】またシール本体24の両端面の内周部(端面壁部26aに覆われていない部分)はそれぞれ凹型のテーパー面Tとなっている。つまりシール本体24の軸線方向の寸法(厚さ)は内周面に近づくほど薄くなっている。このようにすると、内周側ほど圧縮変形が容易になるため、このシール部材22をケーブル10の外周に装着して割り面28a、28bを突き合わせるときに比較的小さい力で突き合わせることができると共に、適用ケーブル外径の範囲をより拡大することができる。
【0019】また補強枠体26の周方向の中間部には、端面壁部26aに径方向の切込み36を入れることによりヒンジ部が形成されている。このようなヒンジ部を形成しておくと、シール部材22をケーブル10に装着するときに、割り面28a、28bの開閉を容易に行うことができる。
【0020】以上のように構成されたシール部材22は、割り面28a、28bを開いてケーブル10の外周に装着した後、補強枠体26の両端を突起32と穴34の嵌合により連結するだけで、シール本体24のゴム弾性でシール本体24の内周面をケーブル10の外周面に密接させることができると共に、割り面28a、28bを密接させることができる。
【0021】またこのシール部材22は、シール本体24に圧縮力がかかっていないときの補強枠体26の外面間の寸法W(図2(B)参照)が、ケーブル接続箱20のシール部材収容凹部38の両端壁40a、40bの間隔W(図3参照)より大きく設定されている。これにより、シール部材22をケーブル10の外周に装着した後、図3のようにシール部材22にケーブル接続箱20の収容凹部38を被せるときに、シール部材22が収容凹部38の両端壁40a、40bによって軸線方向に圧縮されることになる。その結果、シール本体24の外周面が、補強枠体の周面壁部26bより高さhだけ盛り上がるので、二つ割り型のケーブル接続箱20をP方向に外力を加えて結合したときに、収容凹部38の内周面とシール本体24の外周面とが十分に密接し、良好な防水性能を得ることができる。
【0022】
〔実施形態2〕 図4は本発明の他の実施形態を示す。このケーブル接続箱用シール部材22は、軟質ゴム製の一対の半割りシール本体42a、42bと、それぞれの半割りシール本体42a、42bの外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体44とから構成されている。
【0023】一対の半割りシール本体42a、42bは、分割面46a、46bを突き合わせると環状になるように形成されている。
【0024】補強枠体44は、半割りシール本体42a、42bの端面外周部に密着する端面壁部44aと外周面側縁に密着する周面壁部44bとを有する断面略L字形のものである。両側の補強枠体44の間には半割りシール本体42a、42bの外周面が露出している。また補強枠体44の両端には、半割りシール本体42a、42bの分割面46a、46bにめり込むように分割面壁部48が形成されている。さらに相対する分割面壁部48の一方には突起32が、他方には穴34が形成されている。穴34の内径は突起32の外径よりも若干小さく形成されており、穴34に突起32を無理に押し込むことで、補強枠体44の両端が相手方の補強枠体44の両端に連結されるようになっている。補強枠体44が相手方と互いに連結されると、半割りシール本体42a、42bの分割面46a、46bが突き合わされ、半割りシール本体42a、42bが環状に保持される。
【0025】また半割りシール本体42a、42bの両端面の内周部はそれぞれ凹型のテーパー面Tとなっている。
【0026】このような構成でも、実施形態1とほぼ同様の効果を得ることができる。
【0027】
〔実施形態3〕 図5は本発明のさらに他の実施形態を示す。このケーブル接続箱用シール部材22は、軟質ゴム製の環状シール本体50と、この環状シール本体50の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体52とから構成されている。
【0028】環状シール本体50は、周方向に連続していて割りがないこと以外は実施形態1におけるシール本体24と同じである。また補強枠体52も、端面壁部52aと周面壁部52bを有しており、周方向に連続していて連結部がないこと以外は、実施形態1における補強枠体26と同じである。
【0029】このシール部材22をケーブル外周に装着するときは、環状シール本体50の穴54にケーブルを挿入することになる。
【0030】
〔実施形態4〕 図6は本発明のさらに他の実施形態を示す。このケーブル接続箱用シール部材22は、中心部にケーブル挿入穴がなく外周面に周方向の溝58を有する合成樹脂製の円板状部材56と、この円板状部材56の外周面の溝58に装着された軟質ゴム製の環状シール材60とから構成されている。環状シール材60の外周部は円板状部材56の外周面から突出している。このケーブル接続箱用シール部材22は、ケーブル接続箱にケーブル導入口が複数設けられている場合に、ケーブルが導入されないケーブル導入口を塞いでおくのに使用されるものである。
【0031】
【発明の効果】以上説明したように本発明に係るケーブル接続箱用シール部材は、軟質ゴム製のシール本体を使用しているので、比較的広い範囲のケーブル外径に対応できると共に、シール本体の外周面の両側のコーナー部を合成樹脂製の補強枠体で補強してあるので、ケーブル外周に取り付けたとき及びケーブル接続箱のシール部材収容凹部で締め付けたとき等に、シール本体の過度の変形を抑制でき、確実にシール効果を得ることができる。またシール本体が軟質ゴム製であることと補強枠体の両端に相手方との連結部が設けられていることから、補強枠体の両端を相手方と連結するだけで、シール本体の割り面又は分割面を密接させることができ、シール本体の割り面又は分割面の突き合わせ部も簡単に防水性を確保することができる。したがって簡単な構造ながら防滴性程度の防水性を確保することができる。また部品点数が少なく、ケーブル外周への取付けに手間がかからず、作業者による防水性能のバラツキを少なくできる。
【図面の簡単な説明】
【図1】本発明に係るケーブル接続箱用シール部材の一実施形態を示す斜視図。
【図2】図1のシール部材の、(A)は正面図、(B)は側面図、(C)は平面図、(D)は(A)のD−D線断面図、(E)は(B)のE−E線断面図、(F)は(B)のF−F線断面図。
【図3】図1のシール部材の使用状態を示す側面図。
【図4】本発明に係るケーブル接続箱用シール部材の他の実施形態を示す、(A)は正面図、(B)は側面図、(C)は(A)のC−C線矢視図。
【図5】本発明に係るケーブル接続箱用シール部材のさらに他の実施形態を示す、(A)は正面図、(B)は側面図。
【図6】本発明に係るケーブル接続箱用シール部材のさらに他の実施形態を示す、(A)は正面図、(B)は側面図、(C)は(A)のC−C線断面図。
【図7】(A)〜(E)は従来のケーブル接続箱のケーブル導入部の防水処理方法を示す説明図。
【符号の説明】
10:ケーブル
20:ケーブル接続箱
24:シール本体
26:補強枠体
26a:端面壁部
26b:周面壁部
28a、28b:割り面
30:割り面壁部
32:突起(連結部)
34:穴(連結部)
36:切込み
38:シール部材収納凹部
40a、40b:両端壁
42a、42b:半割りシール本体
44:補強枠体
50:環状シール本体
52:補強枠体
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable junction box sealing member installed at a cable inlet of a cable junction box.
[0002]
2. Description of the Related Art Conventionally, a portion where an optical cable is introduced into a connection box has been subjected to waterproof treatment as shown in FIG. In this waterproofing method, first, as shown in (A), a first sealing material 12A is wound around an optical cable 10 and an annular end face plate 14 (rubber packing, hardness is cone Attach a needle penetration of about 55). Next, as shown in (B), the second sealing material 12B is inserted between the split surfaces of the end face plate 14, and the protruding portion (hatched portion) is cut out. Next, a stainless steel wire 16 is wound around the outer periphery as shown in FIG. 16a is a portion where both ends of the stainless steel wire 16 are twisted. Next, as shown in (D), the third sealing material 12C is wound around the outer periphery, and the release tape 18 is peeled off. Finally, as shown in (E), the outer periphery of the third seal member 12C is sandwiched between the inner peripheral surfaces of the seal portions of the split cable connection box 20 to obtain a waterproof structure. With this structure, a water pressure resistance of 98 kPa or more can be obtained.
[0003]
However, the conventional waterproof structure of the cable introduction portion has an excessive performance when a sealing performance of a drip-proof degree is required. In addition, the number of parts is large, and the construction method is complicated and time-consuming. In addition, since a technique is required for winding the sealing material or the tape, there is a concern that the waterproof performance may differ depending on the operator.
SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a sealing member for a cable connection box which has a sealing performance set to a drip-proof property and is simple in construction method.
[0005]
SUMMARY OF THE INVENTION In order to achieve this object, the present invention relates to a sealing member installed at a cable introduction portion of a cable connection box, wherein a split surface is provided at one location in a circumferential direction so that a split surface is formed. The seal body is made of a soft rubber seal body that forms an annular shape when butted, and a synthetic resin reinforcement frame integrally attached to both corners of the outer peripheral surface of the seal body. Having an end wall portion closely attached to the outer peripheral portion of the end surface and a peripheral wall portion closely adhered to the outer peripheral side edge, and having a connecting portion at both ends in the circumferential direction for holding the split surfaces of the seal body in abutted state. It is characterized by having.
The sealing member is mounted on the outer periphery of the cable by opening the split surface and then connecting the connecting portion of the reinforcing frame so that the split surfaces abut against each other. In addition to being able to be in close contact, the split surface can be in close contact. Therefore, as in the related art, a waterproof structure can be obtained simply by sandwiching the seal member between the cable connection boxes.
It is preferable that the reinforcing frame body in the above-mentioned cable junction box seal member has a hinge portion formed by making a radial cut in an end face wall portion in a circumferential middle portion. If such a hinge portion is formed, the opening and closing of the split surface can be performed more easily.
[0008] In the seal member for a cable connection box of the present invention, it is preferable that inner peripheral portions of both end surfaces of the seal body have a concave tapered surface. With such a shape, the amount of elastic deformation of the inner peripheral portion of the seal body can be increased, and the range of the applicable cable outer diameter can be expanded.
[0009] In the seal member for a cable connection box of the present invention, it is preferable that a dimension between outer surfaces of the reinforcing frame is set to be larger than a distance between both end walls of the seal member accommodating recess of the cable connection box. With this configuration, when the seal member attached to the outer periphery of the cable is pushed into the housing recess of the cable connection box, the seal body is pressed against the end wall of the reinforcing frame, and the outer peripheral surface of the seal body rises outward. In addition, the inner peripheral surface of the cable connection box and the outer peripheral surface of the seal body are in close contact with each other, and the waterproof performance is improved.
The cable junction box sealing member according to the present invention is composed of a pair of soft rubber half-seal bodies which are divided into two parts and which form an annular shape when the divided surfaces abut against each other. A reinforcing frame made of synthetic resin integrally attached to the corners on both sides of the outer peripheral surface, wherein the reinforcing frame has an end wall portion and an outer peripheral side edge which are in close contact with the outer peripheral portion of the end surface of the half seal body. It is also possible to adopt a configuration having a peripheral wall portion that is in close contact and a connecting portion at both ends in the circumferential direction that holds the pair of half-seal bodies in a state in which the divided surfaces abut against each other.
The seal member for a cable connection box according to the present invention comprises an annular seal body made of soft rubber, and a reinforcing frame made of synthetic resin integrally attached to both corners of the outer peripheral surface of the annular seal body. The reinforcing frame may have an end wall portion that is in close contact with the outer peripheral portion of the end surface of the annular seal body and a peripheral wall portion that is in close contact with the outer peripheral side edge.
Further, the seal member for a cable connection box of the present invention is a synthetic resin disk-shaped member having a circumferential groove on the outer peripheral surface, and a soft rubber mounted in the groove on the outer peripheral surface of the disk-shaped member. And an outer peripheral portion of the annular seal member protrudes from an outer peripheral surface of the disk-shaped member. This seal member is used for closing the cable introduction port where the cable is not introduced when the cable connection box is provided with a plurality of cable introduction ports.
[0013]
Embodiments of the present invention will be described below in detail with reference to the drawings.
[0014]
Embodiment 1 FIGS. 1 to 3 show an embodiment of the present invention. The cable connection box seal member 22 is composed of a soft rubber seal body 24 and a synthetic resin reinforcement frame 26 integrally attached to both corners of the outer peripheral surface of the seal body 22. I have.
The seal body 24 has a split 28 at one location in the circumferential direction, and is formed so as to be annular when the split faces 28a and 28b abut against each other. The hardness of the soft rubber for the seal body 24 is about 85 in cone penetration. By using such a low-hardness rubber, a seal material (adhesive tape) conventionally used is not required, and the range of the applicable cable outer diameter can be expanded.
The reinforcing frame 26 has a substantially L-shaped cross section having an end wall 26a which is in close contact with the outer peripheral portion of the end surface of the seal body 24 and a peripheral wall 26b which is in close contact with the outer peripheral side edge. That is, the reinforcing frame bodies 26 at both corners are in a state of sandwiching the outer peripheral portion of the seal body 24. The outer peripheral surface of the seal body 24 is exposed between the reinforcing frames 26 at both corners, and the exposed surface rises to the same plane as the outer peripheral surface of the peripheral wall 26b of the reinforcing frame 26 or to the outside thereof. It is formed as follows.
At both ends of the reinforcing frame 26, split wall portions 30 are formed so as to be cut into the split surfaces 28a and 28b of the seal body 24. Further, a projection 32 is formed on one of the opposing split wall portions 30, and a hole 34 is formed on the other. The inner diameter of the hole 34 is formed slightly smaller than the outer diameter of the projection 32, and the projection 32 is forcibly pushed into the hole 34 so that both ends of the reinforcing frame 26 are connected. When both ends of the reinforcing frame 26 are connected, the split surfaces 28a and 28b of the seal main body 24 abut each other, and the seal main body 24 is held in an annular shape. Parting plane 28a, the inner diameter D 1 of the seal body 24 in a state in which 28b is abutted is set to be smaller than the outer diameter D 2 of the cable 10. In particular the seal body 24 has a large deformation amount because it is formed of a soft rubber, the range of the applicable cable diameter is large, the inner diameter D 1 is the smallest cable diameter D in the range of applied cable outer diameter of the seal body 24 It is set to be slightly smaller than 2 .
The inner peripheral portions of both end surfaces of the seal body 24 (portions not covered by the end wall portions 26a) each have a concave tapered surface T. That is, the dimension (thickness) of the seal body 24 in the axial direction becomes thinner toward the inner peripheral surface. By doing so, the compression deformation becomes easier on the inner circumference side, so that when the seal member 22 is mounted on the outer circumference of the cable 10 and the split surfaces 28a and 28b are butted against each other, they can be butted with a relatively small force. At the same time, the range of the applicable cable outer diameter can be further expanded.
A hinge portion is formed at a middle portion in the circumferential direction of the reinforcing frame body 26 by making a radial cut 36 in the end face wall portion 26a. When such a hinge portion is formed, opening and closing of the split surfaces 28a and 28b can be easily performed when the seal member 22 is attached to the cable 10.
The seal member 22 configured as described above is mounted on the outer periphery of the cable 10 by opening the split surfaces 28a and 28b, and then connecting both ends of the reinforcing frame 26 by fitting the projections 32 and the holes 34. Only by the rubber elasticity of the seal main body 24, the inner peripheral surface of the seal main body 24 can be brought into close contact with the outer peripheral surface of the cable 10, and the split surfaces 28a and 28b can be brought into close contact.
The dimension W 1 (see FIG. 2B) between the outer surfaces of the reinforcing frame 26 when no compressive force is applied to the seal body 24 is determined by the sealing member of the cable connection box 20. The distance W 2 (see FIG. 3) between both end walls 40 a and 40 b of the accommodation recess 38 is set to be larger. Thereby, after the sealing member 22 is attached to the outer periphery of the cable 10 and the housing recess 38 of the cable connection box 20 is put on the sealing member 22 as shown in FIG. 40b results in axial compression. As a result, the outer peripheral surface of the seal main body 24 rises by the height h from the peripheral wall portion 26b of the reinforcing frame, so that when the split cable connection box 20 is joined by applying an external force in the P direction, the housing recess 38 is formed. And the outer peripheral surface of the seal body 24 are sufficiently close to each other, and good waterproof performance can be obtained.
[0022]
Embodiment 2 FIG. 4 shows another embodiment of the present invention. The cable connection box sealing member 22 is made of a pair of soft rubber half-seal bodies 42a and 42b, and a synthetic resin integrally attached to the corners on both sides of the outer peripheral surface of each half-seal body 42a and 42b. And a reinforcing frame body 44 made of stainless steel.
The pair of half-seal bodies 42a and 42b are formed in an annular shape when the divided surfaces 46a and 46b abut each other.
The reinforcing frame body 44 has a substantially L-shaped cross section having an end wall part 44a in close contact with the outer periphery of the end surfaces of the half-sealed seal bodies 42a, 42b and a peripheral wall part 44b in close contact with the outer peripheral side edge. . The outer peripheral surfaces of the half-seal bodies 42a and 42b are exposed between the reinforcing frame bodies 44 on both sides. Further, at both ends of the reinforcing frame body 44, divided surface walls 48 are formed so as to be inserted into the divided surfaces 46a, 46b of the half-seal bodies 42a, 42b. Further, the projection 32 is formed on one of the opposing divided surface walls 48, and the hole 34 is formed on the other. The inner diameter of the hole 34 is formed slightly smaller than the outer diameter of the projection 32, and by forcibly pushing the projection 32 into the hole 34, both ends of the reinforcing frame 44 are connected to both ends of the mating reinforcing frame 44. It has become. When the reinforcing frame body 44 is connected to the counterpart, the divided surfaces 46a, 46b of the half-seal bodies 42a, 42b abut against each other, and the half-seal bodies 42a, 42b are held in an annular shape.
The inner peripheral portions at both end surfaces of the half-sealed seal bodies 42a and 42b each have a concave tapered surface T.
With such a configuration, substantially the same effects as in the first embodiment can be obtained.
[0027]
Embodiment 3 FIG. 5 shows still another embodiment of the present invention. The cable connection box seal member 22 includes a soft rubber annular seal body 50 and a synthetic resin reinforcing frame 52 integrally attached to both corners of the outer peripheral surface of the annular seal body 50. Have been.
The annular seal body 50 is the same as the seal body 24 in the first embodiment except that it is continuous in the circumferential direction and has no split. The reinforcing frame 52 also has an end wall 52a and a peripheral wall 52b, and is the same as the reinforcing frame 26 in the first embodiment except that the reinforcing frame 52 is continuous in the circumferential direction and has no connection.
When the seal member 22 is mounted on the outer periphery of the cable, the cable is inserted into the hole 54 of the annular seal body 50.
[0030]
Embodiment 4 FIG. 6 shows still another embodiment of the present invention. The seal member 22 for a cable connection box includes a disk-shaped member 56 made of a synthetic resin having no cable insertion hole at the center and having a circumferential groove 58 on the outer peripheral surface, and a groove on the outer peripheral surface of the disk-shaped member 56. And an annular sealing member 60 made of soft rubber and attached to 58. The outer peripheral portion of the annular seal member 60 protrudes from the outer peripheral surface of the disk-shaped member 56. When the cable connection box is provided with a plurality of cable introduction ports, the cable connection box seal member 22 is used to close the cable introduction port through which the cable is not introduced.
[0031]
As described above, the seal member for a cable connection box according to the present invention uses a seal body made of soft rubber, so that it can cope with a relatively wide range of cable outer diameters and also has a seal body. The corners on both sides of the outer peripheral surface of the cable are reinforced with a synthetic resin reinforcement frame. Deformation can be suppressed, and a sealing effect can be reliably obtained. In addition, since the seal body is made of soft rubber and the connecting portions with the counterpart are provided at both ends of the reinforcing frame, simply connecting both ends of the reinforcing frame with the counterpart, the split surface or splitting of the seal body. The surfaces can be brought into close contact, and the abutting portion of the split surface or the split surface of the seal body can easily ensure waterproofness. Therefore, it is possible to secure the waterproofness of the degree of drip-proofness with a simple structure. In addition, the number of parts is small, there is no trouble in attaching to the outer periphery of the cable, and variations in waterproof performance by the operator can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a seal member for a cable connection box according to the present invention.
2 (A) is a front view, FIG. 2 (B) is a side view, FIG. 2 (C) is a plan view, FIG. 2 (D) is a sectional view taken along line DD of FIG. 1 (A), and FIG. 3B is a cross-sectional view taken along line EE of FIG. 3B, and FIG. 3F is a cross-sectional view taken along line FF of FIG.
FIG. 3 is a side view showing a use state of the seal member of FIG. 1;
4A and 4B show another embodiment of the seal member for a cable junction box according to the present invention, wherein FIG. 4A is a front view, FIG. 4B is a side view, and FIG. FIG.
5 (A) is a front view and FIG. 5 (B) is a side view showing still another embodiment of the cable junction box sealing member according to the present invention.
6 (A) is a front view, FIG. 6 (B) is a side view, and FIG. 6 (C) is a cross section taken along the line CC of FIG. 6 (A), showing still another embodiment of the cable junction box sealing member according to the present invention. FIG.
FIGS. 7A to 7E are explanatory views showing a waterproofing method of a cable introduction portion of a conventional cable connection box.
[Explanation of symbols]
10: Cable 20: Cable connection box 24: Seal body 26: Reinforcement frame 26a: End wall 26b: Peripheral wall 28a, 28b: Split surface 30: Split wall 32: Projection (connection portion)
34: Hole (connection part)
36: Notch 38: Seal member storage recesses 40a, 40b: Both end walls 42a, 42b: Half-seal body 44: Reinforcement frame 50: Annular seal body 52: Reinforcement frame

Claims (7)

ケーブル接続箱のケーブル導入部に設置されるシール部材であって、周方向の1箇所に割り(28)が入っていて割り面(28a、28b)を突き合わせると環状になる軟質ゴム製のシール本体(24)と、このシール本体(24)の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体(26)とからなり、前記補強枠体(26)は、シール本体(24)の端面外周部に密着する端面壁部(26a)と外周面側縁に密着する周面壁部(26b)とを有すると共に、周方向の両端に前記シール本体(24)の割り面(28a、28b)を突き合わせた状態に保持する連結部(32、34)を有していることを特徴とするケーブル接続箱用シール部材。A seal member installed at a cable introduction portion of a cable junction box, which is a soft rubber seal having a split (28) at one location in a circumferential direction and which forms an annular shape when the split surfaces (28a, 28b) abut against each other. It comprises a main body (24) and a synthetic resin reinforcing frame (26) integrally attached to both corners of the outer peripheral surface of the seal main body (24). It has an end wall (26a) that is in close contact with the outer peripheral surface of the end surface of the main body (24) and a peripheral wall (26b) that is in close contact with the outer peripheral side edge, and has split surfaces of the seal main body (24) at both ends in the circumferential direction. A sealing member for a cable connection box, comprising a connecting portion (32, 34) for holding the (28a, 28b) in an abutted state. 補強枠体(26)は周方向の中間部に、端面壁部(26a)に径方向の切込み(36)を入れることによりヒンジ部が形成されていることを特徴とする請求項1記載のケーブル接続箱用シール部材。The cable according to claim 1, characterized in that the reinforcing frame (26) is formed with a hinge portion at an intermediate portion in the circumferential direction by making a radial cut (36) in the end face wall portion (26a). Seal member for connection box. ケーブル接続箱のケーブル導入部に設置されるシール部材であって、二つに分割されていて分割面(46a、46b)を突き合わせると環状になる軟質ゴム製の一対の半割りシール本体(42a、42b)と、それぞれの半割りシール本体(42a、42b)の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体(44)とからなり、前記補強枠体(44)は、半割りシール本体(42a、42b)の端面外周部に密着する端面壁部(44a)と外周面側縁に密着する周面壁部(44b)とを有すると共に、周方向の両端に前記一対の半割りシール本体(42a、42b)を、分割面(46a、46b)を突き合わせた状態に保持する連結部(32、34)を有していることを特徴とするケーブル接続箱用シール部材。A seal member installed at a cable introduction portion of a cable connection box, which is a pair of soft rubber half-seal bodies (42a) which are divided into two and become annular when the divided surfaces (46a, 46b) abut against each other. , 42b) and a synthetic resin reinforcing frame (44) integrally attached to both corners of the outer peripheral surface of each half-seal body (42a, 42b). ) Has an end wall portion (44a) that is in close contact with the outer peripheral portion of the end surface of the half-seal body (42a, 42b), and a peripheral wall portion (44b) that is in close contact with the outer peripheral side edge. A sealing member for a cable connection box, comprising a connecting portion (32, 34) for holding a pair of half-seal bodies (42a, 42b) in a state where the divided surfaces (46a, 46b) abut against each other. . ケーブル接続箱のケーブル導入部に設置されるシール部材であって、軟質ゴム製の環状シール本体(50)と、この環状シール本体(50)の外周面の両側のコーナー部に一体に取り付けられた合成樹脂製の補強枠体(52)とからなり、前記補強枠体(52)は、環状シール本体(50)の端面外周部に密着する端面壁部(52a)と外周面側縁に密着する周面壁部(52b)とを有していることを特徴とするケーブル接続箱用シール部材。A seal member installed at a cable introduction portion of a cable connection box, which is integrally attached to an annular seal main body (50) made of soft rubber and corners on both sides of an outer peripheral surface of the annular seal main body (50). The reinforcing frame (52) is made of a synthetic resin, and the reinforcing frame (52) is in close contact with the end wall (52a) that is in close contact with the outer peripheral portion of the end surface of the annular seal body (50) and the outer peripheral side edge. A sealing member for a cable connection box, comprising a peripheral wall portion (52b). シール本体(24、42a、42b、50)の両端面内周部が凹型のテーパー面(T)になっていることを特徴とする請求項1ないし4のいずれかに記載のケーブル接続箱用シール部材。The cable junction box seal according to any one of claims 1 to 4, wherein inner peripheral portions of both end faces of the seal body (24, 42a, 42b, 50) have a concave tapered surface (T). Element. 補強枠体(26、44、52)の外面間の寸法(W)が、ケーブル接続箱(20)のシール部材収容凹部(38)の両端壁(40a、40b)の間隔(W)より大きく設定されていることを特徴とする請求項1ないし5のいずれかに記載のケーブル接続箱用シール部材。The dimension (W 1 ) between the outer surfaces of the reinforcing frames (26, 44, 52) is larger than the distance (W 2 ) between both end walls (40 a, 40 b ) of the sealing member accommodating recess (38) of the cable connection box (20). The seal member for a cable connection box according to claim 1, wherein the seal member is set large. ケーブル接続箱のケーブル導入部に設置されるシール部材であって、外周面に周方向の溝(58)を有する合成樹脂製の円板状部材(56)と、この円板状部材(56)の外周面の溝(58)に装着された軟質ゴム製の環状シール材(60)とからなり、環状シール材(60)の外周部が円板状部材(56)の外周面から突出していることを特徴とするケーブル接続箱用シール部材。A sealing member provided at a cable introduction portion of a cable connection box, wherein the disk-shaped member (56) made of a synthetic resin having a circumferential groove (58) on an outer peripheral surface; and the disk-shaped member (56) And an annular sealing member (60) made of soft rubber mounted in a groove (58) on the outer peripheral surface of the disk-shaped member (56). A sealing member for a cable connection box, characterized by comprising:
JP2002165647A 2002-06-06 2002-06-06 Sealing member for cable connection box Pending JP2004015912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002165647A JP2004015912A (en) 2002-06-06 2002-06-06 Sealing member for cable connection box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002165647A JP2004015912A (en) 2002-06-06 2002-06-06 Sealing member for cable connection box

Publications (1)

Publication Number Publication Date
JP2004015912A true JP2004015912A (en) 2004-01-15

Family

ID=30433433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002165647A Pending JP2004015912A (en) 2002-06-06 2002-06-06 Sealing member for cable connection box

Country Status (1)

Country Link
JP (1) JP2004015912A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007066221A (en) * 2005-09-02 2007-03-15 Fuji Electric Retail Systems Co Ltd Vending machine
JP2007240760A (en) * 2006-03-07 2007-09-20 Nippon Tsushin Denzai Kk Closure for cable connection
JP2010113243A (en) * 2008-11-07 2010-05-20 Fujikura Ltd Auxiliary tube
JP2011132728A (en) * 2009-12-24 2011-07-07 Nitto Denko Corp Sealing method, sealing material and sealing structure
WO2022138139A1 (en) * 2020-12-23 2022-06-30 株式会社オートネットワーク技術研究所 Wiring module and elastic water-stop member

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007066221A (en) * 2005-09-02 2007-03-15 Fuji Electric Retail Systems Co Ltd Vending machine
JP2007240760A (en) * 2006-03-07 2007-09-20 Nippon Tsushin Denzai Kk Closure for cable connection
JP4653676B2 (en) * 2006-03-07 2011-03-16 日本通信電材株式会社 Cable connection closure
JP2010113243A (en) * 2008-11-07 2010-05-20 Fujikura Ltd Auxiliary tube
JP2011132728A (en) * 2009-12-24 2011-07-07 Nitto Denko Corp Sealing method, sealing material and sealing structure
WO2022138139A1 (en) * 2020-12-23 2022-06-30 株式会社オートネットワーク技術研究所 Wiring module and elastic water-stop member

Similar Documents

Publication Publication Date Title
JPH10252719A (en) Pipe clamp
JP2000353567A (en) Waterproof connector
JP2003297479A (en) Waterproof connector
JPH0878088A (en) Fixing structure of sealing rubber plug
KR20180131215A (en) Grooved coupler
EP3791220B1 (en) Butt closures and bases therefor
JP2004015912A (en) Sealing member for cable connection box
JP2001355734A (en) Sealing structure
JPH0834467A (en) Waterproof type housing structure
JP5965821B2 (en) Installation structure of cylindrical packing
JPH1074560A (en) Case integrated connector and its forming method
JP2011244247A (en) Sealing cap structure for mobile phone case
KR101773751B1 (en) The connecting socket for a pipe
JP2003004170A (en) Grommet for cable through part
JPH0942549A (en) Seal member for tube fitting
JPH10326978A (en) Cable waterproof structure of apparatus cabinet
JP2957577B1 (en) Pressing plate for closing in cable introduction part and closing device using this pressing plate for closing
KR200336025Y1 (en) A pipe connector
JP2010118425A (en) Housing structure
JP2000282556A (en) Joint for connection
JPH07122342A (en) Bulb socket
JP7356215B2 (en) cable seal structure
JP2004218793A (en) Gasket
JP5910664B2 (en) Manufacturing method of electrical connector
JPH09312926A (en) Grommet for cable closure