JP3216065U

JP3216065U - Coaxial plug connector

Info

Publication number: JP3216065U
Application number: JP2018000583U
Authority: JP
Inventors: 正已石川; 松本　拓也; 拓也松本; 為実　隆史; 隆史為実; 貴義井上
Original assignee: 桑野工業株式会社
Priority date: 2018-02-20
Filing date: 2018-02-20
Publication date: 2018-05-10
Anticipated expiration: 2028-02-20

Abstract

【課題】径寸法の異なる同軸ケーブルに対応可能で、作業性やシールド性能の良好な同軸プラグコネクタを提供する。【解決手段】同軸プラグコネクタ１は、一端に同軸コネクタ挿入部１２を有し、他端に同軸ケーブル挿入部１３を有する外部導体１０と、外部導体１０内に同心状に配置される中心導体２０と、中心導体２０を外部導体１０内に保持する保持部材３０と、外部導体１０が収納される保護ケース５０と、外部導体１０を保護ケース５０内において固定する固定部材４０とを備え、外部導体１０の他端は、一端よりも細径に形成されているとともに、先端側は複数に分割されて接触片１３ａを形成しており、複数の接触片１３ａは基端側から先端側へ向かうに従って拡開された状態となっている。【選択図】図１Provided is a coaxial plug connector that is compatible with coaxial cables having different diameters and has good workability and shielding performance. A coaxial plug connector includes an outer conductor having a coaxial connector insertion portion at one end and a coaxial cable insertion portion at the other end, and a central conductor disposed concentrically within the outer conductor. A holding member 30 for holding the center conductor 20 in the outer conductor 10, a protective case 50 for housing the outer conductor 10, and a fixing member 40 for fixing the outer conductor 10 in the protective case 50. The other end of 10 is formed with a diameter smaller than that of the one end, and the distal end side is divided into a plurality of portions to form contact pieces 13a. The plurality of contact pieces 13a move from the proximal end side toward the distal end side. It is in an expanded state. [Selection] Figure 1

Description

本考案は、デジタル衛星放送等の高周波信号等を伝送する際に使用される同軸ケーブルの先端に設けられる同軸プラグコネクタに関する。 The present invention relates to a coaxial plug connector provided at the tip of a coaxial cable used when transmitting a high-frequency signal for digital satellite broadcasting or the like.

同軸ケーブルは一般に、銅線等からなる中心導体の外周に、ポリエチレン等からなる絶縁体と、編組線からなる外部導体と、塩化ビニル等からなる外被とを同心状に設けることによって構成されている。また、最近では、低損失タイプとして、絶縁体と外部導体との間にアルミ箔付テープからなるシールド層を設けたものもある。更に、同軸ケーブルには、種々の径寸法のものが存在する。 A coaxial cable is generally configured by concentrically providing an insulator made of polyethylene or the like, an outer conductor made of braided wire, and a jacket made of vinyl chloride or the like on the outer periphery of a central conductor made of copper wire or the like. Yes. Recently, as a low-loss type, a shield layer made of a tape with an aluminum foil is provided between an insulator and an outer conductor. Further, there are coaxial cables having various diameters.

前記同軸ケーブルの先端に設けられる同軸プラグコネクタとしては、例えば、特許文献１に記載されているものがある。特許文献１に記載されている同軸プラグコネクタは、円筒電極が一端部に形成され、他端部に同軸ケーブルの外部導体と内部絶縁体との間に差し込まれるケーブル挿入部が形成された外部導体金具と、前記外部導体金具の円筒電極内の中心位置に一端部が配置され、他端部に同軸ケーブルの中心導体との接続部が設けられたコンタクトピンと、前記コンタクトピンを前記外部導体金具の内部に絶縁を確保した状態で保持する内部絶縁体と、同軸ケーブルを前記外部導体金具に対して固定するための固定部材と、前記コンタクトピン及び前記外部導体金具を保護する外部絶縁ケースを備えている。
特許文献１に記載されている同軸プラグコネクタにおいては、外部導体金具のケーブル挿入部を、同軸ケーブルの径に合わせて変形することが可能な左右一対の可撓片によって構成することで、径の異なる複数種類の同軸ケーブルの接続に対応可能としている。また、前記可撓片を同軸ケーブルの外部導体と内部絶縁体との間に挿入し、外部導体の露出部分を可撓片の根元部分に配置することにより、前記一対の可撓片間の隙間を外部導体にて覆うとともに、この状態で、前記固定部材を締め付けて同軸ケーブルを固定することにより、遮蔽効果を高めるようにしている。 As a coaxial plug connector provided at the tip of the coaxial cable, for example, there is one described in Patent Document 1. The coaxial plug connector described in Patent Document 1 has an outer conductor in which a cylindrical electrode is formed at one end and a cable insertion portion is formed at the other end between the outer conductor and the inner insulator of the coaxial cable. A fitting pin, a contact pin having one end disposed at the center position in the cylindrical electrode of the outer conductor fitting, and a connecting portion to the center conductor of the coaxial cable at the other end; and the contact pin of the outer conductor fitting. An internal insulator that holds the insulation in an insulated state, a fixing member for fixing the coaxial cable to the external conductor metal fitting, and an external insulation case that protects the contact pin and the external conductor metal fitting Yes.
In the coaxial plug connector described in Patent Document 1, the cable insertion portion of the external conductor metal fitting is configured by a pair of left and right flexible pieces that can be deformed according to the diameter of the coaxial cable. It is possible to connect different types of coaxial cables. In addition, the flexible piece is inserted between the outer conductor and the inner insulator of the coaxial cable, and the exposed portion of the outer conductor is disposed at the base portion of the flexible piece, whereby a gap between the pair of flexible pieces is obtained. In this state, the fixing member is tightened to fix the coaxial cable, thereby enhancing the shielding effect.

特許第４１２４７４８号公報Japanese Patent No. 4124748

然るに、特許文献１に記載されている同軸プラグコネクタにおいては、外部導体金具のケーブル挿入部が、同軸ケーブルの径寸法に合わせて変形することが可能な左右一対の可撓片によって構成されており、しかも、前記可撓片は、先端へ向かうに従って細くなる形状であるため、前記可撓片を同軸ケーブルの外部導体と内部絶縁体との間に挿入する際に、前記外部導体に引っ掛かり易く、この結果、可撓片自体が変形（折れ曲がる等）して挿入作業に支障を来したり、外部導体にヨレが生じてシールド性に悪影響を及ぼしたりするおそれがあった。また、外部導体と内部絶縁体との間にシールド層が設けてある場合、可撓片を挿入する際に擦れて前記シールド層が削られたり剥がれたりする可能性もあった。このため、可撓片を同軸ケーブルの外部導体と内部絶縁体との間に挿入する作業は、前記のような種々の弊害が発生しないよう慎重に行わなければならず、作業に手間が掛かるという問題があった。 However, in the coaxial plug connector described in Patent Document 1, the cable insertion portion of the external conductor metal fitting is composed of a pair of left and right flexible pieces that can be deformed according to the diameter of the coaxial cable. Moreover, since the flexible piece has a shape that becomes narrower toward the tip, when the flexible piece is inserted between the outer conductor and the inner insulator of the coaxial cable, it is easily caught by the outer conductor, As a result, the flexible piece itself may be deformed (bent or the like) to hinder the insertion work, or the outer conductor may be twisted to adversely affect the shielding performance. Further, when a shield layer is provided between the outer conductor and the inner insulator, there is a possibility that the shield layer may be scraped or peeled off when the flexible piece is inserted. For this reason, the operation of inserting the flexible piece between the outer conductor of the coaxial cable and the inner insulator must be performed carefully so as not to cause the above-described various problems, and it takes time and effort. There was a problem.

本考案は前記種々の問題点に鑑み、径寸法の異なる同軸ケーブルに対応可能で、作業性やシールド性能の良好な同軸プラグコネクタを提供することを目的とする。 The present invention has been made in view of the various problems described above, and an object of the present invention is to provide a coaxial plug connector that can cope with coaxial cables having different diameters and has good workability and shielding performance.

前記の課題を解決するために、本考案の同軸プラグコネクタは、一端に同軸コネクタの挿入部を有し、他端に同軸ケーブルの挿入部を有する外部導体と、前記外部導体内に同心状に配置される中心導体と、前記中心導体を外部導体内に保持する保持部材と、前記外部導体が収納される保護ケースと、前記外部導体を保護ケース内において固定する固定部材とを備え、前記外部導体の他端は、一端よりも細径に形成されているとともに、先端側は複数に分割されて接触片を形成しており、前記複数の接触片は基端側から先端側へ向かうに従って拡開された状態となっていることを特徴としている。
また、前記固定部材は、外部導体の中央部分を嵌合・固定する第１固定部と、前記外部導体を接触片の基端部分において締付・固定する第２固定部と、前記外部導体の他端に挿入した同軸ケーブルと外部導体の接触片とを一体に締付・固定する第３固定部とを備えることを特徴とする。
更に、前記固定部材の第３固定部には、同軸ケーブルの外被に食い込む爪部を設けることを特徴としている。 In order to solve the above-described problems, a coaxial plug connector of the present invention includes an outer conductor having a coaxial connector insertion portion at one end and a coaxial cable insertion portion at the other end, and concentrically within the outer conductor. A central conductor disposed; a holding member for holding the central conductor in the outer conductor; a protective case for storing the outer conductor; and a fixing member for fixing the outer conductor in the protective case; The other end of the conductor is formed with a diameter smaller than that of the one end, and the tip end side is divided into a plurality of contact pieces to form contact pieces, and the plurality of contact pieces expand from the base end side toward the tip end side. It is characterized by being in an open state.
The fixing member includes a first fixing portion that fits and fixes a central portion of the outer conductor, a second fixing portion that fastens and fixes the outer conductor at a proximal end portion of the contact piece, and the outer conductor. And a third fixing portion for fastening and fixing the coaxial cable inserted into the other end and the contact piece of the outer conductor integrally.
Further, the third fixing portion of the fixing member is provided with a claw portion that bites into a jacket of the coaxial cable.

本考案によれば、同軸ケーブルの挿入部である外部導体の他端は、先端側が複数に分割されて接触片を形成しており、前記複数の接触片は基端側から先端側へ向かうに従って拡開された状態となっているので、前記同軸ケーブルは、編組線等を露出させた状態であっても外部導体の他端に対して円滑・容易に挿入し得るとともに、径寸法の異なる同軸ケーブルであっても挿入・接続することが可能である。しかも、同軸ケーブルの絶縁体と編組線との間にアルミ箔付テープからなるシールド層が設けられている場合でも、前記同軸ケーブルを外部導体の他端へ挿入する際に、前記シールド層が削られたり剥がれたりすることがない。
また、外部導体を保護ケース内において固定する固定部材は、第１〜第３固定部を備え、前記第１固定部に外部導体の中央部分を嵌合して固定するとともに、第２固定部により前記外部導体を接触片の基端（根元）部分において締付・固定するようにしているので、前記外部導体が２分割された部材を組み合わせて構成される場合でも、良好に接合状態を保持することができる。更に、外部導体の他端に先端部を挿入した同軸ケーブルと前記外部導体の接触片とを第３固定部により一体に締め付けると、前記接触片が拡開された状態から中心軸方向へ変形（縮閉）し、前記同軸ケーブルの編組線の外側に、これを覆う状態で密着して両者が電気的に接続されるので、同軸ケーブルの接続部における良好なシールド性能を得ることができる。
更に、固定部材の第３固定部には爪部が設けられており、前記第３固定部により同軸ケーブルと外部導体の接触片とを一体に締め付けると、前記爪部が同軸ケーブルの外被に食い込み、前記同軸ケーブルを抜脱不能に固定するので、引張強度を向上させることができる。 According to the present invention, the other end of the outer conductor, which is the insertion portion of the coaxial cable, is divided into a plurality of tip ends to form contact pieces, and the plurality of contact pieces are directed from the base end side toward the tip end side. Since it is in an expanded state, the coaxial cable can be smoothly and easily inserted into the other end of the outer conductor even when the braided wire or the like is exposed, and the coaxial cable has a different diameter. Even a cable can be inserted and connected. In addition, even when a shield layer made of tape with aluminum foil is provided between the insulator of the coaxial cable and the braided wire, the shield layer is removed when the coaxial cable is inserted into the other end of the external conductor. There will be no peeling or peeling.
The fixing member for fixing the outer conductor in the protective case includes first to third fixing portions, and the center portion of the outer conductor is fitted and fixed to the first fixing portion, and the second fixing portion is used. Since the outer conductor is fastened and fixed at the base end (root) portion of the contact piece, even when the outer conductor is configured by combining two divided members, the bonded state is maintained well. be able to. Further, when the coaxial cable having the tip end inserted into the other end of the outer conductor and the contact piece of the outer conductor are tightened together by the third fixing portion, the contact piece is deformed from the expanded state toward the central axis ( Since the both sides are in close contact with the outer side of the braided wire of the coaxial cable and are electrically connected to each other so as to cover the same, good shielding performance can be obtained at the connection portion of the coaxial cable.
Further, the third fixing portion of the fixing member is provided with a claw portion, and when the coaxial cable and the contact piece of the outer conductor are integrally tightened by the third fixing portion, the claw portion is attached to the outer jacket of the coaxial cable. Since the bite bites and the coaxial cable is fixed so that it cannot be removed, the tensile strength can be improved.

本考案の同軸プラグコネクタを示す断面図である。It is sectional drawing which shows the coaxial plug connector of this invention. 本考案の同軸プラグコネクタを示す図であり、（ａ）は図１におけるＡ矢視図、（ｂ）は図１におけるＢ矢視図、（ｃ）は図１のＣ−Ｃ線における断面図、（ｄ）は図１のＤ−Ｄ線における断面図である。It is a figure which shows the coaxial plug connector of this invention, (a) is A arrow directional view in FIG. 1, (b) is B arrow directional view in FIG. 1, (c) is sectional drawing in the CC line of FIG. (D) is sectional drawing in the DD line | wire of FIG. 本考案の同軸プラグコネクタを示す図であり、上部及び下部カバーを開放した状態の斜視図である。It is a figure which shows the coaxial plug connector of this invention, and is a perspective view of the state which opened the upper and lower cover. 同じく、上部及び下部カバーを開放した状態の平面図である。Similarly, it is a top view in the state where the upper and lower covers are opened. 外部導体を示す図であり、（ａ）は外部導体の斜視図、（ｂ）は導体金具の側面図、（ｃ）は外部導体の底面図、（ｄ）は外部導体の背面図である。It is a figure which shows an external conductor, (a) is a perspective view of an external conductor, (b) is a side view of a conductor metal fitting, (c) is a bottom view of an external conductor, (d) is a rear view of an external conductor. 固定部材を示す図であり、（ａ）は固定部材の斜視図、（ｂ）は固定部材の断面図である。It is a figure which shows a fixing member, (a) is a perspective view of a fixing member, (b) is sectional drawing of a fixing member. 保護ケースを示す図であり、（ａ）は上部及び下部カバーを開放した状態の斜視図、（ｂ）は同じく、平面図、（ｃ）は同じく、側面図である。It is a figure which shows a protective case, (a) is a perspective view of the state which open | released the upper and lower cover, (b) is a top view similarly, (c) is a side view similarly. 本考案の同軸プラグコネクタに同軸ケーブルを接続する前の状態を示す斜視図である。It is a perspective view which shows the state before connecting a coaxial cable to the coaxial plug connector of this invention. 本考案の同軸プラグコネクタに同軸ケーブルを接続する動作を説明するための図であり、（ａ）は外部導体のケーブル挿入部に同軸ケーブルを挿入した状態を示す平面図、（ｂ）は同じく、要部断面図である。It is a figure for demonstrating the operation | movement which connects a coaxial cable to the coaxial plug connector of this invention, (a) is a top view which shows the state which inserted the coaxial cable in the cable insertion part of an outer conductor, (b) is the same, It is principal part sectional drawing. 本考案の同軸プラグコネクタに同軸ケーブルを接続する動作を説明するための図であり、（ａ）は固定部材の第３固定部を締め付けた状態を示す平面図、（ｂ）は同じく、要部断面図、（ｃ）は同じく、斜視図である。It is a figure for demonstrating the operation | movement which connects a coaxial cable to the coaxial plug connector of this invention, (a) is a top view which shows the state which fastened the 3rd fixing | fixed part of the fixing member, (b) is also a principal part. Sectional drawing (c) is also a perspective view. 本考案の同軸プラグコネクタに同軸ケーブルを接続した状態を示す斜視図である。It is a perspective view which shows the state which connected the coaxial cable to the coaxial plug connector of this invention. 本考案の他の実施形態において、同軸プラグコネクタに同軸ケーブルを接続する前の状態を示す斜視図である。In other embodiment of this invention, it is a perspective view which shows the state before connecting a coaxial cable to a coaxial plug connector. 本考案の他の実施形態において、同軸プラグコネクタに同軸ケーブルを接続する動作を説明するための図であり、（ａ）は外部導体のケーブル挿入部に同軸ケーブルを挿入した状態を示す平面図、（ｂ）は同じく、要部断面図である。In other embodiment of this invention, it is a figure for demonstrating the operation | movement which connects a coaxial cable to a coaxial plug connector, (a) is a top view which shows the state which inserted the coaxial cable in the cable insertion part of an outer conductor, (B) is a principal part sectional drawing similarly. 本考案の他の実施形態において、同軸プラグコネクタに同軸ケーブルを接続する動作を説明するための図であり、（ａ）は固定部材の第３固定部を締め付けた状態を示す平面図、（ｂ）は同じく、要部断面図、（ｃ）は同じく、斜視図である。In other embodiment of this invention, it is a figure for demonstrating the operation | movement which connects a coaxial cable to a coaxial plug connector, (a) is a top view which shows the state which clamp | tightened the 3rd fixing | fixed part of the fixing member, (b) ) Is a sectional view of the main part, and (c) is a perspective view. 本考案の他の実施形態において、同軸プラグコネクタに同軸ケーブルを接続した状態を示す斜視図である。In other embodiment of this invention, it is a perspective view which shows the state which connected the coaxial cable to the coaxial plug connector.

以下、本考案を実施するための形態について、図１ないし図１５を参照しながら具体的に説明する。図１は本考案の同軸プラグコネクタを示す断面図、図２（ａ）は図１におけるＡ矢視図、（ｂ）は図１におけるＢ矢視図、（ｃ）は図１のＣ−Ｃ線における断面図、（ｄ）は図１のＤ−Ｄ線における断面図、図３は本考案の同軸プラグコネクタにおいて、上部及び下部カバーを開放した状態の斜視図、図４は同じく、平面図である。 Hereinafter, embodiments for carrying out the present invention will be specifically described with reference to FIGS. 1 is a sectional view showing a coaxial plug connector of the present invention, FIG. 2 (a) is a view as seen from an arrow A in FIG. 1, (b) is a view as seen from an arrow B in FIG. 1, and (c) is a CC view of FIG. FIG. 3D is a sectional view taken along the line D-D in FIG. 1, FIG. 3 is a perspective view of the coaxial plug connector of the present invention with the upper and lower covers open, and FIG. It is.

図１ないし図４に本考案に係る同軸プラグコネクタ１の一例を示す。同軸プラグコネクタ１は、中空Ｌ字状の外部導体１０と、前記外部導体１０内に同心状に配設されるＬ字状の中心導体２０と、前記中心導体２０を外部導体１０内に保持するＬ字状の保持部材３０と、前記外部導体１０が収納される保護ケース５０と、前記外部導体１０を保護ケース５０内において固定する固定部材４０とを備えて構成されている。 1 to 4 show an example of a coaxial plug connector 1 according to the present invention. The coaxial plug connector 1 holds a hollow L-shaped outer conductor 10, an L-shaped center conductor 20 disposed concentrically in the outer conductor 10, and the center conductor 20 in the outer conductor 10. An L-shaped holding member 30, a protective case 50 in which the outer conductor 10 is accommodated, and a fixing member 40 that fixes the outer conductor 10 in the protective case 50 are configured.

以下、前記各構成部材の詳細について、図１及び図５ないし図７を参照しながら説明する。
前記外部導体１０は、図５に示すように、対称な形状に２分割してなる一対の導体金具１１，１１を組み合わせることにより構成されている。前記外部導体１０の一端には同軸コネクタを挿入可能な径寸法で円筒状のコネクタ挿入部１２が設けられている。また、前記外部導体１０の他端には、コネクタ挿入部１２よりも細径な円筒状のケーブル挿入部１３が設けられている。前記ケーブル挿入部１３の先端側は、複数に分割されて接触片１３ａを形成しており、前記接触片１３ａは通常、基端（根元）から先端へ向かうに従って拡開された状態となっている。そして、前記拡開された状態の接触片１３ａは、後述する固定部材４０の第３固定部４３で締め付けることにより、それぞれケーブル挿入部１３の中心軸方向へ変形（縮閉）可能となっている。 Hereinafter, details of each of the constituent members will be described with reference to FIGS. 1 and 5 to 7.
As shown in FIG. 5, the outer conductor 10 is configured by combining a pair of conductor fittings 11, 11 that are divided into two symmetrical shapes. One end of the outer conductor 10 is provided with a cylindrical connector insertion portion 12 having a diameter capable of inserting a coaxial connector. A cylindrical cable insertion portion 13 having a diameter smaller than that of the connector insertion portion 12 is provided at the other end of the outer conductor 10. The distal end side of the cable insertion portion 13 is divided into a plurality of pieces to form a contact piece 13a, and the contact piece 13a is normally expanded from the proximal end (root) to the distal end. . The contact piece 13a in the expanded state can be deformed (contracted) in the direction of the central axis of the cable insertion portion 13 by fastening with a third fixing portion 43 of the fixing member 40 described later. .

前記中心導体２０は、図１に示すように、バネ性を有する金属部材を曲成することによりＬ字状に形成されており、一端には同軸コネクタと接続されるピン部２１が、他端には同軸ケーブルＣの芯線（中心導体）Ｃ１（図９（ｂ）参照）が接続されるクランプ状の挟着部２２がそれぞれ設けられている。 As shown in FIG. 1, the central conductor 20 is formed in an L shape by bending a metal member having a spring property, and a pin portion 21 connected to a coaxial connector is provided at one end and the other end. Are provided with clamp-like sandwiching portions 22 to which the core wire (center conductor) C1 (see FIG. 9B) of the coaxial cable C is connected.

前記保持部材３０は、図１に示すように、外部導体１０の内部形状と合致するＬ字状に形成されており、例えば、対称な形状に２分割した一対の樹脂製部材を組み合わせることにより構成されている。前記保持部材３０の内部には、中心導体２０の挟着部２２を保持するための保持部３１が設けられているとともに、外部導体１０のコネクタ挿入部１２側に位置する端部には、中心導体２０のピン部２１が挿通される挿通穴３２が、外部導体１０のケーブル挿入部１３側に位置する端部には、同軸ケーブルＣの芯線（中心導体）Ｃ１（図９（ｂ）参照）が挿入される挿入穴３３がそれぞれ設けられている。 As shown in FIG. 1, the holding member 30 is formed in an L shape that matches the internal shape of the outer conductor 10. For example, the holding member 30 is configured by combining a pair of resin members divided into two symmetrical shapes. Has been. A holding portion 31 for holding the sandwiching portion 22 of the center conductor 20 is provided inside the holding member 30, and an end portion of the outer conductor 10 located on the connector insertion portion 12 side has a center An insertion hole 32 through which the pin portion 21 of the conductor 20 is inserted is located at the end portion of the outer conductor 10 on the cable insertion portion 13 side, and the core wire (center conductor) C1 of the coaxial cable C (see FIG. 9B). Insertion holes 33 are respectively provided in which are inserted.

前記固定部材４０は金属製部品であり、図６に示すように、外部導体１０の中央部分を嵌合・固定する半円状の第１固定部４１と、前記ケーブル挿入部１３の先端側を複数に分割して形成した接触片１３ａの根元部分を締付・固定するＵ字状の第２固定部４２と、前記接触片１３ａの先端側及びケーブル挿入部１３に挿入される同軸ケーブルＣ（図１０参照）を一体に締付・固定するＵ字状の第３固定部４３と、固定部材４０を保護ケース５０に固定するための係止片４４ａ，４４ｂとを備えて構成されている。前記第２，第３固定部４２，４３の開放端縁には、締め付け作業を行い易くするための突片４２ａ，４３ａが外側へ向けて突設されている。また、前記第３固定部４３の軸方向端部には、同軸ケーブルＣの外被Ｃ４（図１０参照）に食い込む一対の爪部４３ｂが相対する状態で突設されている。 The fixing member 40 is a metal part. As shown in FIG. 6, the semicircular first fixing portion 41 that fits and fixes the central portion of the outer conductor 10 and the distal end side of the cable insertion portion 13 are arranged. A U-shaped second fixing portion 42 for fastening and fixing the base portion of the contact piece 13a formed by dividing into a plurality of parts, and a coaxial cable C (inserted into the distal end side of the contact piece 13a and the cable insertion portion 13) A U-shaped third fixing portion 43 for fastening and fixing integrally (see FIG. 10) and locking pieces 44a and 44b for fixing the fixing member 40 to the protective case 50 are provided. On the open end edges of the second and third fixing portions 42 and 43, projecting pieces 42a and 43a for facilitating the tightening operation are provided so as to project outward. Further, a pair of claw portions 43b that bite into the outer jacket C4 (see FIG. 10) of the coaxial cable C project from the axial end portion of the third fixing portion 43 so as to face each other.

前記保護ケース５０は樹脂製部品であり、図７に示すように、ケース本体５１、上部カバー５２及び下部カバー５３によって構成されている。前記上部カバー５２はケース本体５１の上部に蝶番５４ａを介して開閉自在に連結されており、前記下部カバー５３はケース本体５１の下部側面に蝶番５４ｂを介して開閉自在に連結されている。ケース本体５１上部の両側部には、上部カバー５２内面の両側部に設けた係止部５２ａと係合するフック５１ａが設けられており、ケース本体５１下部の一側部には、下部カバー５３の一側部に設けたフック５３ａと係合する係止部５１ｂが設けられている。ケース本体５１の上部外面には、外部導体１０のコネクタ挿入部１１の外周を覆う形状のボス部５１ｃが一体的に形成されている。また、ケース本体５１の上部内面（ボス部５１ｃの近傍）には、外部導体１０のケーブル挿入部１３、固定部材４０の第１固定部４１及び係止片４４ａが係合する凹部を備えた保持部５１ｄが設けられているとともに、ケース本体５１の下部には、固定部材４０に設けた係止片４４ｂが差し込まれる貫通孔５１ｅが設けられている。上部カバー５２の内面には、外部導体１０上面と当接して保持するリブ５２ｂと、ケース本体５１の保持部５１ｄに設けた穴部５１ｆに挿入されるピン５２ｃが設けられている。なお、５５ａ，５５ｂはケース本体５１及び下部カバー５３の下端部にそれぞれ対向する状態で設けた凹部であり、これら凹部５５ａ，５５ｂによって同軸ケーブルＣの挿通孔５５（図１，図２（ｂ）及び図１１参照）が形成される。 The protective case 50 is a resin part and includes a case body 51, an upper cover 52, and a lower cover 53 as shown in FIG. The upper cover 52 is connected to the upper part of the case body 51 through a hinge 54a so as to be opened and closed. The lower cover 53 is connected to the lower side surface of the case body 51 through a hinge 54b so as to be opened and closed. On both sides of the upper portion of the case body 51, hooks 51a that engage with locking portions 52a provided on both sides of the inner surface of the upper cover 52 are provided, and on one side of the lower portion of the case body 51, the lower cover 53 is provided. A locking portion 51b that engages with a hook 53a provided on one side of the door is provided. A boss portion 51 c having a shape covering the outer periphery of the connector insertion portion 11 of the outer conductor 10 is integrally formed on the upper outer surface of the case body 51. Further, the upper inner surface of the case body 51 (in the vicinity of the boss portion 51c) is provided with a recess in which the cable insertion portion 13 of the outer conductor 10, the first fixing portion 41 of the fixing member 40, and the locking piece 44a are engaged. A portion 51 d is provided, and a through hole 51 e into which a locking piece 44 b provided on the fixing member 40 is inserted is provided at the lower portion of the case main body 51. On the inner surface of the upper cover 52, there are provided a rib 52 b that contacts and holds the upper surface of the outer conductor 10, and a pin 52 c that is inserted into a hole 51 f provided in the holding portion 51 d of the case main body 51. Reference numerals 55a and 55b denote concave portions provided in a state of facing the lower ends of the case main body 51 and the lower cover 53, respectively, and the through holes 55 (FIGS. 1 and 2B) of the coaxial cable C are formed by the concave portions 55a and 55b. And FIG. 11) are formed.

以上のように構成された同軸プラグコネクタ１を組立てる場合は、まず、図１に示すように、中心導体２０を、そのピン部２１を保持部材３０に設けた挿通穴３２に挿通し、かつ、挟着部２２を保持部３１に保持させた状態で、保持部材３０内に収納する。 When assembling the coaxial plug connector 1 configured as described above, first, as shown in FIG. 1, the center conductor 20 is inserted into the insertion hole 32 provided with the pin portion 21 in the holding member 30, and The holding part 22 is stored in the holding member 30 in a state where the holding part 31 is held by the holding part 31.

次に、外部導体１０を２分割した状態で、一方の導体金具１１に保持部材３０を収納するとともに、前記一方の導体金具１１に他方の導体金具１１を組み合せることにより、外部導体１０を組み立てる。また、固定部材４０に設けた係止片４４ｂを、保護ケース５０のケース本体５１に設けた貫通孔５１ｅに差し込むとともに（図１及び図２（ａ）参照）、固定部材４０の第１固定部４１及び係止片４４ａを、ケース本体５１に設けた保持部５１ｄの凹部にそれぞれ係合させることにより（図１，３，４参照）、前記固定部材４０をケース本体５１に保持させる。 Next, in a state where the outer conductor 10 is divided into two, the holding member 30 is housed in one conductor fitting 11, and the other conductor fitting 11 is combined with the one conductor fitting 11 to assemble the outer conductor 10. . Further, the locking piece 44b provided in the fixing member 40 is inserted into the through hole 51e provided in the case body 51 of the protective case 50 (see FIGS. 1 and 2A), and the first fixing portion of the fixing member 40 is also provided. The fixing member 40 is held by the case body 51 by engaging 41 and the locking pieces 44a with the recesses of the holding part 51d provided on the case body 51 (see FIGS. 1, 3 and 4).

つづいて、外部導体１０のコネクタ挿入部１２を、ケース本体５１に設けたボス部５１ｃに挿入するとともに（図１及び図２（ｄ）参照）、外部導体１０の中央部分（屈曲部付近からケーブル挿入部１３にかけての部分）を、ケース本体５１に設けた保持部５１ｄの凹部及び固定部材４０の第１固定部４１にそれぞれ嵌合・固定する（図３，４参照）。また、これと同時に、外部導体１０におけるケーブル挿入部１３の接触片１３ａの基端（根元）部分を、固定部材４０の第２固定部４２に嵌合し、かつ、前記第２固定部４２の開放端同士を互いに相対する方向へ変形させる（締め付ける）ことにより、前記外部導体１０を接触片１３ａの基端（根元）部分において締付・固定する（図３，４参照）。この結果、一対の導体金具１１，１１からなる外部導体１０は、固定部材４０の第１，第２固定部４１，４２によって強固に固定されるので、接合部分に隙間が生じるのを防ぐことができる。なお、この時点で、外部導体１０の接触片１３ａの先端は、拡開した状態で固定部材４０の第３固定部４３の内側に位置している。 Subsequently, the connector insertion portion 12 of the outer conductor 10 is inserted into a boss portion 51c provided on the case main body 51 (see FIGS. 1 and 2D), and the central portion of the outer conductor 10 (from the bent portion near the cable) The portion extending to the insertion portion 13 is fitted and fixed to the concave portion of the holding portion 51d provided on the case body 51 and the first fixing portion 41 of the fixing member 40 (see FIGS. 3 and 4). At the same time, the base end (base) portion of the contact piece 13 a of the cable insertion portion 13 in the outer conductor 10 is fitted into the second fixing portion 42 of the fixing member 40, and the second fixing portion 42 By deforming (tightening) the open ends in directions opposite to each other, the outer conductor 10 is fastened and fixed at the base end (root) portion of the contact piece 13a (see FIGS. 3 and 4). As a result, the outer conductor 10 composed of the pair of conductor fittings 11 and 11 is firmly fixed by the first and second fixing portions 41 and 42 of the fixing member 40, so that it is possible to prevent a gap from being generated at the joint portion. it can. At this time, the tip of the contact piece 13a of the outer conductor 10 is located inside the third fixing portion 43 of the fixing member 40 in an expanded state.

この後、蝶番５４ａを介して上部カバー５２をケース本体５１の上部側へ被せ、前記ケース本体５１に設けた係止フック５１ａ，５１ａを上部カバー５２に設けた係止部５２ａ，５２ａに係止させるとともに（図２（ｄ）参照）、上部カバー５２に設けたピン５２ｃ，５２ｃをケース本体５１の保持部５１ｄに設けた穴部５１ｆに挿嵌する。また、蝶番５４ｂを介して下部カバー５３をケース本体５１の下部側へ被せ、前記下部カバー５３に設けた係止フック５３ａをケース本体５１に設けた係止部５１ｂに係止させる（図２（ｃ）参照）。この結果、前記外部導体１０は固定部材４０によって固定した状態で保護ケース５０内に収納・保持される。 Thereafter, the upper cover 52 is put on the upper side of the case main body 51 via the hinge 54a, and the hooks 51a, 51a provided on the case main body 51 are locked to the locking portions 52a, 52a provided on the upper cover 52. In addition, the pins 52c and 52c provided on the upper cover 52 are inserted into the holes 51f provided on the holding portion 51d of the case main body 51 (see FIG. 2D). Further, the lower cover 53 is placed on the lower side of the case main body 51 via the hinge 54b, and the locking hook 53a provided on the lower cover 53 is locked to the locking portion 51b provided on the case main body 51 (FIG. 2 ( c)). As a result, the outer conductor 10 is housed and held in the protective case 50 while being fixed by the fixing member 40.

次に、前記のように構成した同軸プラグコネクタ１に同軸ケーブルＣを接続する場合について、図８ないし図１１を参照しながら説明する。まず、事前準備として、図８に示すように、同軸ケーブルＣ先端部の外被Ｃ４を剥いで芯線（中心導体）Ｃ１、絶縁体Ｃ２及び編組線（外部導体）Ｃ３をそれぞれ所定寸法で露出させる（図８において、絶縁体Ｃ２は編組線Ｃ３によって隠れている）。 Next, the case where the coaxial cable C is connected to the coaxial plug connector 1 configured as described above will be described with reference to FIGS. First, as a preliminary preparation, as shown in FIG. 8, the outer cover C4 of the end portion of the coaxial cable C is peeled to expose the core wire (center conductor) C1, the insulator C2, and the braided wire (external conductor) C3 with predetermined dimensions. (In FIG. 8, the insulator C2 is hidden by the braided wire C3).

つづいて、図８，９に示すように、同軸プラグコネクタ１の保護ケース５０の下部カバー５３を開放した状態で、芯線Ｃ１、絶縁体Ｃ２及び編組線Ｃ３を露出させた同軸ケーブルＣの先端部を、固定部材４０の第３固定部４３の軸方向端部から、当該第３固定部４３に向いて開口している外部導体１０のケーブル挿入部１３に挿入するとともに、前記同軸ケーブルＣの芯線Ｃ１を保持部材３０の挿入穴３３に通し、当該保持部材３０内に保持されている中心導体２０の挟着部２２に挟持させる。この際、前記ケーブル挿入部１３の先端側は、複数に分割されて接触片１３ａを形成し、かつ、前記接触片１３ａは先端へ向かうに従って拡開されているので、編組線Ｃ３等を露出させた状態の同軸ケーブルＣを円滑・容易にケーブル挿入部１３へ挿入することができる。また、前記同軸ケーブルＣの絶縁体Ｃ２及び編組線Ｃ３は、前記接触片１３ａの中間位置付近まで挿入される。 Next, as shown in FIGS. 8 and 9, with the lower cover 53 of the protective case 50 of the coaxial plug connector 1 opened, the end of the coaxial cable C with the core wire C1, the insulator C2, and the braided wire C3 exposed. Is inserted into the cable insertion portion 13 of the outer conductor 10 that opens toward the third fixing portion 43 from the axial end portion of the third fixing portion 43 of the fixing member 40, and the core wire of the coaxial cable C C1 is passed through the insertion hole 33 of the holding member 30 and is held by the holding portion 22 of the center conductor 20 held in the holding member 30. At this time, the distal end side of the cable insertion portion 13 is divided into a plurality of portions to form a contact piece 13a, and since the contact piece 13a is expanded toward the distal end, the braided wire C3 and the like are exposed. The coaxial cable C can be inserted into the cable insertion portion 13 smoothly and easily. Further, the insulator C2 and the braided wire C3 of the coaxial cable C are inserted to the vicinity of the middle position of the contact piece 13a.

この後、前記外部導体１０のケーブル挿入部１３に先端部を挿入した同軸ケーブルＣと、前記ケーブル挿入部１３の先端側に形成された接触片１３ａとを、固定部材４０の第３固定部４３により一体に締付・固定する。即ち、前記のように、外部導体１０のケーブル挿入部１３に同軸ケーブルＣの先端部を挿入した状態で、固定部材４０の第３固定部４３の開放端同士を互いに相対する方向へ変形させる（締め付ける）と、図１０に示すように、前記第３固定部４３の内側に位置している外部導体１０の接触片１３ａが、拡開された状態から中心軸方向へ変形（縮閉）し、前記同軸ケーブルＣの編組線Ｃ３の外側に、これを覆う状態で密着・固定されるので、前記接触片１３ａと編組線Ｃ３とは電気的に接続された状態となり、また、これと同時に、前記同軸ケーブルＣの外被Ｃ４が第３固定部４３によって締め付けられ、かつ、前記第３固定部４３の軸方向端部に突設した爪部４３ｂ，４３ｂが同軸ケーブルＣの外被Ｃ４に食い込むことで、前記接触片１３ａと同軸ケーブルＣとは一体に固定される。このように、固定部材４０の第３固定部４３により同軸ケーブルＣと接触片１３ａとを一体に締付・固定することで、同軸ケーブルＣの編組線Ｃ３は接触片１３ａによって外部から遮蔽されるので、同軸ケーブルＣの接続部分におけるシールド性能を高めることができるとともに、第３固定部４３に設けた爪部４３ｂが同軸ケーブルＣの外被Ｃ４に食い込むことで、同軸ケーブルＣが抜脱不能に固定されるので、同軸ケーブルＣの引張強度を向上させることができる。 Thereafter, the coaxial cable C having the distal end inserted into the cable insertion portion 13 of the outer conductor 10 and the contact piece 13 a formed on the distal end side of the cable insertion portion 13 are connected to the third fixing portion 43 of the fixing member 40. Tighten and fix together. That is, as described above, with the distal end portion of the coaxial cable C inserted into the cable insertion portion 13 of the outer conductor 10, the open ends of the third fixing portions 43 of the fixing member 40 are deformed in directions opposite to each other ( 10), as shown in FIG. 10, the contact piece 13a of the outer conductor 10 located inside the third fixing portion 43 is deformed (contracted) from the expanded state toward the central axis direction, The contact piece 13a and the braided wire C3 are in an electrically connected state because they are closely attached and fixed to the outer side of the braided wire C3 of the coaxial cable C so as to cover it. The outer jacket C4 of the coaxial cable C is fastened by the third fixing portion 43, and the claw portions 43b and 43b protruding from the axial end of the third fixing portion 43 bite into the outer jacket C4 of the coaxial cable C. Then, the contact piece 13 It is integrally fixed to the coaxial cable C and. Thus, the coaxial cable C and the contact piece 13a are integrally tightened and fixed by the third fixing portion 43 of the fixing member 40, whereby the braided wire C3 of the coaxial cable C is shielded from the outside by the contact piece 13a. Therefore, the shielding performance at the connection portion of the coaxial cable C can be improved, and the claw portion 43b provided in the third fixing portion 43 bites into the outer jacket C4 of the coaxial cable C, so that the coaxial cable C cannot be removed. Since it is fixed, the tensile strength of the coaxial cable C can be improved.

前記のように、同軸ケーブルＣの接続が終了したら、保護ケース５０の下部カバー５３を閉じて、一側部に設けたフック５３ａをケース本体５１の一側部に設けた係止部５１ｂに係止させることにより、下部カバー５３をケース本体５１に固定する（図１１参照）。これによって、外部導体１０や固定部材４０等は外部から保護することができるため、外部からの衝撃等を受けても外部導体１０や固定部材４０等の変形・破損を防ぐことが可能となる。 As described above, when the connection of the coaxial cable C is completed, the lower cover 53 of the protective case 50 is closed, and the hook 53a provided on one side is engaged with the locking part 51b provided on one side of the case body 51. By stopping, the lower cover 53 is fixed to the case body 51 (see FIG. 11). As a result, the external conductor 10, the fixing member 40, and the like can be protected from the outside, so that deformation and breakage of the external conductor 10, the fixing member 40, and the like can be prevented even when subjected to an external impact or the like.

なお、本考案の同軸プラグコネクタ１においては、外部導体１０のケーブル挿入部１３の先端が、複数の接触片１３ａに分割され、かつ、前記接触片１３ａが先端へ向かうに従って拡開されており、同軸ケーブルＣの先端部をケーブル挿入部１３に挿入した状態で、固定部材４０の第３固定部４３を締め付けて、拡開状態の接触片１３ａを縮閉させるようにしているので、種々の外径の同軸ケーブルの接続に対応することが可能となる。 In the coaxial plug connector 1 of the present invention, the tip of the cable insertion portion 13 of the outer conductor 10 is divided into a plurality of contact pieces 13a, and the contact pieces 13a are expanded toward the tip, Since the third fixing portion 43 of the fixing member 40 is tightened in a state where the distal end portion of the coaxial cable C is inserted into the cable insertion portion 13, the expanded contact piece 13a is contracted and closed. It becomes possible to cope with the connection of coaxial cables having a diameter.

図１２ないし図１５に、上記で説明した同軸ケーブルＣよりも外径が細い同軸ケーブルＣｓに適用した場合の具体例を示す。この際、同軸ケーブルＣｓの先端部は、上記で説明した同軸ケーブルＣよりも広い範囲で外被Ｃｓ４を剥いで絶縁体Ｃｓ２及び編組線Ｃｓ３を露出させる。これは、図１３（ｂ）に示すように、前記絶縁体Ｃｓ２及び編組線Ｃｓ３がケーブル挿入部１３における接触片１３ａの基端（根元）付近まで挿入されるためである。なお、具体的な同軸ケーブルＣｓの接続作業の流れについては、上記で説明した同軸ケーブルＣの場合と同様であるため、詳細な説明は省略する。 12 to 15 show specific examples in the case where the present invention is applied to the coaxial cable Cs whose outer diameter is smaller than that of the coaxial cable C described above. At this time, the outer end portion Cs4 of the end portion of the coaxial cable Cs is peeled off in a wider range than the coaxial cable C described above to expose the insulator Cs2 and the braided wire Cs3. This is because the insulator Cs2 and the braided wire Cs3 are inserted to the vicinity of the base end (base) of the contact piece 13a in the cable insertion portion 13, as shown in FIG. Note that a specific connection flow of the coaxial cable Cs is the same as that of the coaxial cable C described above, and thus detailed description thereof is omitted.

なお、上記実施形態においては、中空Ｌ字状に形成した外部導体１０を備えた同軸プラグコネクタ１に本考案を適用した場合を一例として説明しているが、これに限らず本考案は、中空円筒状（直線状）に形成した外部導体を備えた同軸プラグコネクタにも適用可能である。 In the above embodiment, the case where the present invention is applied to the coaxial plug connector 1 including the outer conductor 10 formed in a hollow L-shape has been described as an example. The present invention is also applicable to a coaxial plug connector having an outer conductor formed in a cylindrical shape (straight shape).

１同軸プラグコネクタ
１０外部導体
１２コネクタ挿入部
１３ケーブル挿入部
１３ａ接触片
２０中心導体
２１ピン部
２２挟着部
３０保持部材
４０固定部材
４１第１固定部
４２第２固定部
４３第３固定部
４３ｂ爪部
４４ａ，４４ｂ係止片
５０保護ケース
５１ケース本体
５２上部カバー
５３下部カバー
Ｃ，Ｃｓ同軸ケーブル
Ｃ１，Ｃｓ１芯線（中心導体）
Ｃ２，Ｃｓ２絶縁体
Ｃ３，Ｃｓ３編組線（外部導体）
Ｃ４，Ｃｓ４外被 DESCRIPTION OF SYMBOLS 1 Coaxial plug connector 10 External conductor 12 Connector insertion part 13 Cable insertion part 13a Contact piece 20 Center conductor 21 Pin part 22 Clamping part 30 Holding member 40 Fixing member 41 First fixing part 42 Second fixing part 43 Third fixing part 43b Claw 44a, 44b Locking piece 50 Protective case 51 Case body 52 Upper cover 53 Lower cover C, Cs Coaxial cable C1, Cs1 Core wire (center conductor)
C2, Cs2 Insulator C3, Cs3 Braided wire (outer conductor)
C4, Cs4 jacket

Claims

一端に同軸コネクタの挿入部を有し、他端に同軸ケーブルの挿入部を有する外部導体と、
前記外部導体内に同心状に配置される中心導体と、
前記中心導体を外部導体内に保持する保持部材と、
前記外部導体が収納される保護ケースと、
前記外部導体を保護ケース内において固定する固定部材とを備え、
前記外部導体の他端は、一端よりも細径に形成されているとともに、先端側は複数に分割されて接触片を形成しており、
前記複数の接触片は基端側から先端側へ向かうに従って拡開された状態となっている
ことを特徴とする同軸プラグコネクタ。 An outer conductor having an insertion part of a coaxial connector at one end and an insertion part of a coaxial cable at the other end;
A central conductor disposed concentrically within the outer conductor;
A holding member for holding the central conductor in the outer conductor;
A protective case for storing the outer conductor;
A fixing member for fixing the outer conductor in a protective case,
The other end of the outer conductor is formed with a smaller diameter than the one end, and the tip side is divided into a plurality of contact pieces to form a contact piece,
The plurality of contact pieces are in a state of being expanded from the base end side toward the tip end side. A coaxial plug connector, wherein:

前記固定部材は、外部導体の中央部分を嵌合・固定する第１固定部と、
前記外部導体を接触片の基端部分において締付・固定する第２固定部と、
前記外部導体の他端に挿入した同軸ケーブルと外部導体の接触片とを一体に締付・固定する第３固定部と、
を備えることを特徴とする請求項１記載の同軸プラグコネクタ。 The fixing member includes a first fixing portion that fits and fixes a central portion of the outer conductor;
A second fixing portion for fastening and fixing the outer conductor at the base end portion of the contact piece;
A third fixing portion for integrally fastening and fixing the coaxial cable inserted into the other end of the outer conductor and the contact piece of the outer conductor;
The coaxial plug connector according to claim 1, further comprising:

前記固定部材の第３固定部には、同軸ケーブルの外被に食い込む爪部を設けることを特徴とする請求項１または２記載の同軸プラグコネクタ。 The coaxial plug connector according to claim 1, wherein a claw portion that bites into a jacket of the coaxial cable is provided in the third fixing portion of the fixing member.