JP2004134192A

JP2004134192A - Connector for coaxial cable, and housing for containing electronic apparatus

Info

Publication number: JP2004134192A
Application number: JP2002296565A
Authority: JP
Inventors: Toshihiro Sugiura; 杉浦　敏博; Takashi Tanezane; 為実　隆史
Original assignee: Maspro Denkoh Corp
Current assignee: Maspro Denkoh Corp
Priority date: 2002-10-09
Filing date: 2002-10-09
Publication date: 2004-04-30
Anticipated expiration: 2022-10-09
Also published as: JP4685320B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a coaxial cable having a release function, from which the coaxial cable hardly comes off. <P>SOLUTION: The connector has a sleeve portion 12 which is inserted between the internal insulator 7a and the external conductor 7c of the coaxial cable 7, a stopper 3 which stops coming off of the coaxial cable 7, and a releaser 5 which releases the stopping action of the stopper 3 against the coming off of the coaxial cable 7, inside its external tube member 2 into which the coaxial cable 7 is inserted. The stopper 3 has a body portion 3a whose central axis is in common with that of the external tube member 2, a chuck portion 3b formed by contracting a nose of the body portion 3a, which holds a circumferential line of the coaxial cable 7, and an engaging portion 3c disposed at a rear portion of the body portion 3a, which is engaged to the external tube member 2. The stopper 3 has an incising which is formed to have elasticity. The stopper 3 thus holds the inserted coaxial cable 7 with the chuck portion 3b and stops its slipping-out. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、同軸ケーブル同士或いは同軸ケーブルを電子機器の筐体に接続するために同軸ケーブル端部に装着する同軸ケーブル用コネクタ、及び同軸ケーブルを直接接続できる電子機器収納用箱体に関する。
【０００２】
【従来の技術】
同軸ケーブルにコネクタを装着する場合、従来はケーブルの抜けを防ぐために、フェルール又はシェルと一体になったリング部分をペンチや特殊工具を用いてカシメを行い、コネクタをケーブルに装着する方法が広く採用されていた（例えば特許文献１の従来技術参照）。
しかし、この方法は工具を用いてカシメを行わなければならず、コネクタの装着作業が面倒であったため、特許文献１に記載されているように内側筒部に内側爪部、外側筒部に外側爪部を設けて同軸ケーブルを挿入するだけでコネクタに装着できる構成や、本発明者等が先に出願した特許文献２に示すように、爪部を有するリング状の抜け止め具を同軸ケーブルに外嵌して、爪部をケーブルに食い込ませて抜けを防止させ、カシメの工程を必要とせずにケーブルが抜け難くしたコネクタの構成や同様の端子を設けた電子機器収納用箱体の構成が知られている。
【０００３】
【特許文献１】
特開平１１−２８８７６７号公報（第１０図）
【特許文献２】
特開２００２−１８４５３６号公報（第７図）
【０００４】
【発明が解決しようとする課題】
しかし、上記特許文献１及び２で開示した技術は、リリース機能がなく、一度装着した同軸ケーブルを外すことが困難なため、同軸ケーブルを変更したい場合は新たなコネクタを必要としたし、同軸ケーブルの長さを変えたい場合はケーブルのコネクタ部を切断して新たなコネクタを装着していた。また、電子機器収納用箱体に至っては、箱体自体を交換して対応する以外になかった。
そこで、本発明は上記問題点に鑑み、同軸ケーブルが抜け難く且つリリース機能を有する同軸ケーブル用コネクタ及び電子機器収納用箱体を提供することを課題とする。
【０００５】
【課題を解決するための手段】
上記課題を解決するため、請求項１の発明は、後部に同軸ケーブルを装着するケーブル装着手段を有し、前部に前記同軸ケーブルの接続対象へ接続する接続手段を有する同軸ケーブル用コネクタであって、前記ケーブル装着手段は、同軸ケーブルが挿入される略筒形状の外部筒体内に形成され、同軸ケーブルの内部絶縁体と外部導体との間に挿入されるスリーブ部と、同軸ケーブルの抜脱を阻止する抜け止め具と、該抜け止め具による同軸ケーブルの抜脱阻止を解除するリリーサとを有し、前記抜け止め具は、弾性を有し、前記外部筒体と同一中心軸を有する筒形状胴部と、該胴部の前部に窄み形成し、先端を同軸ケーブル周囲に線接触させて咬持動作する咬持部と、前記胴部後部に設けた前記外部筒体に係止する係止部とから成り、同軸ケーブルを前記外部筒体内へ挿入装着操作することで、前記咬持部が前記同軸ケーブルを咬持して同軸ケーブルの抜脱を阻止することを特徴とする。
【０００６】
請求項２の発明は、請求項１の発明において、抜け止め具は、胴部と咬持部の長さの比、胴部／咬持部が略２．２５〜２．６であることを特徴とする。
【０００７】
請求項３の発明は、請求項１又は２の発明において、リリーサは、円筒状摺動部と摺動部を操作する鍔状操作部とから成ると共に前記摺動部先端は咬持部の背部に配置され、前記摺動部を前方へ摺動することで、摺動部先端が咬持部を後方から押上げ、同軸ケーブルの咬持動作を解除することを特徴とする。
【０００８】
請求項４の発明は、請求項１乃至３の何れかの発明において、外部筒体の前面は、装着した同軸ケーブルの中心導体を含む内部絶縁体部分を挿通する挿通孔を有すると共に該挿通孔の周囲に接続手段を嵌合保持する嵌合部を突設し、接続手段は、後部が前記嵌合部に回転可能に嵌合保持された筒形状のナット体であり、前部から内面にかけて雌ねじが切られて成り、挿入装着した同軸ケーブルの中心導体を前記挿通孔から突出させて、前記ナット体の中心軸上に配置させて成ることを特徴とする。
【０００９】
請求項５の発明は、請求項１乃至３の何れかの発明において、接続手段は、外部筒体に一体形成されて周囲に雄ねじが切られたボルト体であり、該ボルト体中心軸上には外部筒体内のスリーブ部に亘り貫通形成された連通孔を有し、該連通孔が、接続対象の中心導体を挿入する孔であると共に、外部筒体に挿入装着した同軸ケーブルの中心導体を挿入する孔であり、前記連通孔内部に配置した連結金具により両者は連結されることを特徴とする。
【００１０】
請求項６の発明は、外部から同軸ケーブルを装着する同軸ケーブル装着手段を有する電子機器収納用箱体であって、前記同軸ケーブル装着手段は、同軸ケーブルが挿入される略筒形状の外部筒体内に形成され、同軸ケーブルの内部絶縁体と外部導体との間に挿入されるスリーブ部と、同軸ケーブルの抜脱を阻止する抜け止め具と、該抜け止め具による同軸ケーブルの抜脱阻止を解除するリリーサとを有し、前記抜け止め具は、弾性を有し、前記外部筒体と同一中心軸を有する筒形状胴部と、該胴部の前部に窄み形成し、先端を同軸ケーブル周囲に線接触させて咬持動作する咬持部と、前記胴部後部に設けた前記外部筒体に係止する係止部とから成り、前記外部筒体内へ挿入装着操作することで、同軸ケーブルは前記箱体に装着され、前記咬持部が前記同軸ケーブルを咬持して同軸ケーブルの抜脱を阻止することを特徴とする。
【００１１】
請求項７の発明は、請求項６の発明において、抜け止め具は、胴部と咬持部の長さの比、胴部／咬持部が２．２５〜２．６である請求項６記載の電子機器収納用箱体。
【００１２】
請求項８の発明は、請求項６又は７の発明において、リリーサは、円筒状摺動部と摺動部を操作する鍔状操作部とから成ると共に前記摺動部先端は咬持部の背部に配置され、前記摺動部を前方へ摺動することで、摺動部先端が咬持部を後方から押上げ、同軸ケーブルの咬持動作を解除することを特徴とする。
【００１３】
【発明の実施の形態】
以下、本発明を具体化した実施の形態を、図面に基づいて詳細に説明する。図１は本発明に係る同軸ケーブル用コネクタの第１実施形態を示し、同軸ケーブル接続プラグを示している。尚、図１は、要部を断面で示した説明図である。
図１において、１は内部筒体、２は外部筒体、３は装着したケーブルの抜けを防止する抜け止め具、４は抜け止め具３を固定する固定具、５は抜け止め具３の抜け止め作用を解除するリリーサ、６はレセプタクル等の接続対象に接続するための接続手段であるナット体、そして７は同軸ケーブルであり、図示左方向を前方として以下説明する。
【００１４】
外部筒体２は、先端に内部筒体１の先端部を挿通する挿通孔９を有し、後端が開放された円筒体であり、内部筒体１も略円筒形状で、先端は外部筒体２内部から前方に突出してナット体６と連結する嵌合部１０が形成されている。また、内部筒体１の略中央部には外部筒体２に係止させて外部筒体２と一体化させる円盤状突起１１が形成され、中心軸Ｍ上には同軸ケーブル７の内部絶縁体７ａを挿通する貫通孔１３が形成されている。
そして、内部筒体１の円盤状突起１１形成部から後方は、同軸ケーブル７の内部絶縁体７ａと保護被覆７ｂの間、正確には内部絶縁体７ａと外部導体７ｃの間に挿入するスリーブ部１２を成している。スリーブ部１２は、後方の挿入端部の肉厚を薄くして挿入し易いように形成されている。
【００１５】
抜け止め具３は、弾性を有する金属片、例えばステンレスで形成され、図２（ａ）の斜視図に示すように中央に筒形状胴部３ａを有し、胴部３ａの前部には同軸ケーブル７を咬持する咬持部３ｂが窄み形成され、後部には外部筒体２に係止する係止部３ｃが鍔状に折曲げ形成されている。
咬持部３ｂは、図２（ｂ）の端面説明図に示すように、外部筒体２の中心軸Ｍの直交方向に対して先端が２０°〜４０°の平均角度Ｑ１を設けて中心軸Ｍ方向に折曲げ形成され、更にその先端部内側は中心軸Ｍから角度Ｑ２を持って鋭角に形成されている。そして、この２つの角度Ｑ１，Ｑ２はＱ２＞Ｑ１となるよう形成されている。
また、咬持部３ｂの先端は内部筒体１のスリーブ部１２先端より前方に位置するように配置され、筒部３ａの長さＬ１と咬持部３ｂの長さＬ２の比Ｌ１／Ｌ２を２．５として形成されている。尚、この比Ｌ１／Ｌ２は、１〜３．５の範囲であれば、筒部３ａが同軸ケーブル７の引張りに対して高い抜脱阻止作用を奏する。特にＬ１／Ｌ２を２．２５〜２．６とすると、優れた抜脱阻止作用を奏し、好適である。
【００１６】
そして、咬持部３ｂ先端から胴部３ａに亘りスリット状の切り込み１４が複数設けられ、咬持部３ｂ及び胴部３ａが弾性を有するよう形成されている。咬持部３ｂは、挿入される同軸ケーブル７により拡径され、咬持部３ｂが同軸ケーブル７周囲に食い込むよう咬持動作する。但し、咬持部３ｂは鋭角な先端部を有するが同軸ケーブル７に線接触するために深く食い込むようなことがない。
このように形成した抜け止め具３に、挿入装着された同軸ケーブル７の引張り応力が作用した場合、咬持部３ｂは後方に引張られ、応力は中央の胴部３ａに集中する。その結果、抜け止め具３は胴部３ａの座屈変形が発生するが、この変形は、例えば、抜け止め具３を、厚さ０．２ｍｍのステンレス鋼で形成した場合、３００Ｎ以上の引張り力で発生するため十分な引張り強度を得ることができる。そして、このような状態でも、咬持部３ｂ先端が同軸ケーブル７に深く食い込むことが無いので、同軸ケーブル７が咬持部位から千切れるようなこともない。
【００１７】
また、係止部３ｃは固定具４により外部筒体２に固定されている。外部筒体２は、内側面に固定具４を係止する係止溝１５が周設され、固定具４は、その係止溝１５に合致した直径を有するリング形状に形成され、一箇所に空隙４ｂを設けて弾性を持たせ、縮径可能に形成されている。そして、縮径して外部筒体２に挿入した後、係止溝１５にて拡径復帰して良好に装着される。
尚、外部筒体２の係止溝１５から後方の内径は、抜け止め具３を挿入可能とするため、係止部３ｃに合わせた直径で形成され、係止溝１５端部に抜け止め具３の係止部３ｃは係合し、固定具４を係止溝１５に装着して抜け止め具３は保持固定される。
【００１８】
リリーサ５は、同軸ケーブル７上を摺動する円筒状摺動部５ａと、摺動部５ａを操作する操作部５ｂとから形成されている。摺動部５ａは、同軸ケーブル７を挿通する内径を有し、外部筒体２後部から抜け止め具３の内側に挿入配置され、咬持部３ｂ背部に当接する長さを有している。また、固定具４にはリリーサ５に係合する案内突起４ａが内側面に設けられると共に、摺動部５ａには案内突起４ａを挿入して係合する案内溝１６が穿設され、リリーサ５の抜けを防止している。尚、案内溝１６は案内突起４ａより前後方向に十分長く形成され、リリーサ５の摺動移動を可能としている。
また、操作部５ｂは摺動部５ａの後端に鍔状に形成され、外部筒体２の後方に配置され、操作部５ｂを押して前方に摺動させることで、図４のＡ部拡大図に示すように先端が咬持部３ｂを押上げ、同軸ケーブル７から咬持部３ｂが浮き上がる。その結果、抜け止め具３による同軸ケーブル咬持作用が解除、即ち抜脱阻止作用が解除される。
【００１９】
また、ナット体６は、内部に雌ねじが切られ、後部が外部筒体２から突出された内部筒体１の嵌合部１０に嵌合され、回転可能に外部筒体２と連結されている。尚、内部筒体１の嵌合部１０はナット体６と嵌合した後に先端部が拡径される。
【００２０】
次に、上記プラグの組立て及び同軸ケーブルへの装着手順を説明する。プラグの組立ては、先ず外部筒体２に内部筒体１が後方から挿入され連結される。この時内部筒体１は圧入等により両者は固着一体化される。その過程で、内部筒体１の先端嵌合部１０は挿通孔９から外部筒体２の前方に突出され、突出された嵌合部１０にナット体６を嵌合し、前方からナット体を介して嵌合部９を拡径ささせると、ナット体６は回転自在に外部筒体２に連結される。
【００２１】
その後、抜け止め具３を外部筒体２内に挿入して係止溝１５に係止部３ｃを係合させ、固定具４を係止溝１５に装着して抜け止め具３を係止固定する。但し、固定具４は、リリーサ５を組み付けた状態で装着され、リリーサ５を固定具４に挿通し、固定具４の案内突起４ａにリリーサ５の案内溝１６を係合させて、両者を連結して外部筒体２内に挿入する。この挿入操作は固定具４を縮径操作することで容易に実施でき、こうしてプラグは形成される。
【００２２】
次に同軸ケーブルの装着操作に入る。同軸ケーブル７は、最初にプラグを装着する端部を所定の形状に加工される。中心導体７ｄ及び内部絶縁体７ａが所定の長さに露出されるよう内部絶縁体７ａ及び保護被覆７ｂを切除する。後は、同軸ケーブル７を外部筒体２に後方から挿入操作すれば良い。
同軸ケーブル７の挿入は、保護被覆７ｂが内部筒体１の円盤状突起１１に当接する所定位置まで行われる。こうすることで、スリーブ部１２は内部絶縁体７ａと外部導体７ｃの間に挿入され、内部筒体１は外部導体７ｃと確実に電気的接続が成され、同時に保護被覆７ｂは拡径され、スリーブ部１２に重なる位置に配置された咬持部３ｂは図３に示すように確実に同軸ケーブル７を咬持するよう作用する。更に、中心導体７ｄの先端はナット体６先端位置まで突出し、ナット体６の中心軸上に同軸ケーブル７の中心導体７ｄが配置され、接続手段の中心導体を得る。
【００２３】
このように、コネクタに装着した同軸ケーブルは、引張り応力が加わっても抜けてしまうようなことがなく、堅牢な装着ができる。それでいて、リリーサを操作すれば、抜け止め具による抜脱阻止作用を解除できるので、ケーブル交換等の作業を容易に実施できる。
更に、外部筒体内に抜け止め具を備えたケーブル装着手段を形成し、端部を所定の形状に処理した同軸ケーブルを外部筒体に挿入操作する簡単な装着操作でコネクタの装着は完了するので、コネクタ装着を容易に行うことができる。
また、リリーサは簡単な構造及び形状で済み、コネクタの構成が複雑になることがないし、接続手段をプラグとすることで電子機器等のレセプタクル端子に接続できる。
【００２４】
図５は抜け止め具の他の例を示している。上記図２に示す抜け止め具３との相違点を説明すると、咬持部１８ｂ先端から筒部１８ａに亘り設けられた各切り込み１４の間に、係止部１８ｃ端部から筒部１８ａに亘って第２の切り込み１９が形成されている。
このように、後方からも切り込みを形成することで、咬持部、筒部に加えて係止部にも弾性を持たせることができ、外部筒体への抜け止め具の挿入係止操作がし易くなる。
尚、図２及び図５双方の抜け止め具３，１８は、切り込み１４を図面上４箇所に設けているが、少なくとも３箇所あれば胴部３ａ，１８ａ及び咬持部３ｂ，１８ｂに弾性を生じさせることができるし、５箇所以上に切り込みを設けても良い。
【００２５】
次に、本発明に係る同軸ケーブル用コネクタの第２の実施形態を図６を基に説明する。図６は同軸ケーブル接続レセプタクルの要部を断面で示した側面図であり、図１との相違点は、接続手段を雄ねじが切られたボルト体２１としている点である。尚、上記図１と同様の構成部材には同一の符号を付与してある。
【００２６】
ボルト体２１は、外部筒体２内のスリーブ部１２から貫通形成された連通孔２２を有し、連通孔２２内には接続対象の中心導体とコネクタに装着した同軸ケーブル７の中心導体を連結する連結金具２３が配置されている。この連結金具２３は、連通孔２２内に挿入された樹脂製の保持筒２４内に配置され、保持筒２４は前面及び背面に夫々中心導体を挿入するための挿入孔２４ａが形成されている。また、内部筒体１ａは、スリーブ部１２と円盤状突起１１を有し、円盤状突起１１の前面側は平坦に形成され、外部筒体２の奥部に固着一体化されている。
【００２７】
このレセプタクルの組立ては、最初に連結金具２３を組み付けた保持筒２４を外部筒体２後方からボルト体２１内に挿入し、次に内部筒体１ａを同様に後方から挿入及び圧入すれば良い。その後は、第１の実施形態と同様に、抜け止め具３、固定具４、リリーサ５等を組み付けることで組立てられる。
また、同軸ケーブルの装着手順も上記第１の実施形態と同様であり、所定形状に端部を加工した同軸ケーブル７を外部筒体２に挿入することで確実に装着され、引張り応力が作用しても抜けてしまうようなことがない。そして、差し込んだ同軸ケーブル７の中心導体７ｄは保持筒２４内に挿入され、連結金具２３に挟持される。
このようにコネクタをセプタクルとして形成することで、例えば上記第１の実施形態のようなプラグを連結でき、同軸ケーブル同士を容易に連結できる。
【００２８】
尚、上記実施の形態では、外部筒体を円筒形状としているが、他の形状、例えば６角柱形状としても何ら差し支えない。また、接続手段は、上記プラグ或いはレセプタクル構造以外の形状であっても良く、外部筒体内のケーブル装着手段が上記構成であれば、抜脱作用を良好に発揮できる。
【００２９】
図７は、本発明に係る電子機器収納用箱体（以下、単に箱体と称する。）を示している。図７は箱体の断面説明図であり、２６は箱体、２７は箱体内に組み付けられた回路基板、２８は同軸ケーブル装着手段を示している。尚、上記図１と同様の構成部材には同一の符号を付与してある。
【００３０】
箱体２６は、本体２６ａと蓋板２６ｂから成り、共に金属製であり内部空間は外部からシールドされて密閉されるよう形成されている。そして、本体２６ａ側面に筒状の外部筒体２が突設され、外部筒体２ｂは本体２６ａに一体に形成されている。外部筒体２ｂ内部は、図１と同様な同軸ケーブル装着手段２８が形成され、外部筒体に固着されてスリーブ部１２を有する内部筒体と、抜け止め具３と、固定具４と、リリーサ５とを備えている。
一方、外部筒体２ｂの箱体内端部は、接続された同軸ケーブル７の中心導体７ｄを箱体２６の内部空間に挿通する連結孔２９が形成され、中心導体７ｄに接続される連結金具３０が箱体２６内に配置された回路基板２７に、連結孔２９の位置に合わせて組み付けられ挿入された同軸ケーブルの接続手段を形成している。
【００３１】
このように、箱体に上記コネクタと同様の同軸ケーブル装着手段を設けることができ、装着した同軸ケーブルは、抜け止め具の作用により引張り応力が加わっても抜けてしまうようなことがなく、堅牢な装着ができる。それでいて、リリーサを操作すれば、抜け止め具による抜脱阻止作用を解除できるので、ケーブル交換等の作業を容易に実施できる。また、同軸ケーブルの端部を所定の形状に処理して外部筒体に挿入するだけで、箱体への装着が完了するので、同軸ケーブルの装着が容易である。
更に、リリーサは簡単な構造及び形状で済み、同軸ケーブル装着手段の構成が複雑になることがない。
【００３２】
尚、この電子機器収納用箱体の実施形態では、外部筒体２を箱体２６の外方へ突出させているが、反対方向の箱体内部空間へ突出させて同軸ケーブル装着手段をその外部筒体内に形成しても良い。そうすることで、内部空間は狭くなるが、箱体の見映えは向上する。また、接続手段を回路基板上に組み付けているが、連結金具３０を本体２６ａ側に設けても良い。
また、何れの実施形態もリリース機能を持たせるためにリリーサを設けているが、リリース機能が必要ない部位に使用するものであれば、当然リリーサを設ける必要が無く、装着した同軸ケーブルが抜けにくい堅牢なコネクタをその分安価に構成できる。
【００３３】
【発明の効果】
以上詳述したように、請求項１，２の発明によれば、コネクタに装着した同軸ケーブルは、抜け止め具の作用により引張り応力が加わっても抜けてしまうようなことがなく、堅牢な装着ができる。それでいて、リリーサを操作すれば、抜け止め具による抜脱阻止作用を解除できるので、ケーブル交換等の作業を容易に実施できる。また、同軸ケーブルの端部を所定の形状に処理して外部筒体に挿入するだけで、コネクタ装着が完了するので、コネクタ装着が容易である。
【００３４】
請求項３の発明のよれば、請求項１又は２の効果に加えて、リリーサは簡単な構造及び形状で済み、コネクタの構成が複雑になることがない。
請求項４の発明によれば、請求項１乃至３の何れかの効果に加えて、電子機器等のレセプタクル端子に接続できる。また、請求項５の発明によれば、請求項１乃至３の何れかの効果に加えて、プラグ端子に接続でき、同軸ケーブル同士の接続を容易に実施できる。
【００３５】
請求項６，７の発明によれば、箱体に装着した同軸ケーブルは、抜け止め具の作用により引張り応力が加わっても抜けてしまうようなことがなく、堅牢な装着ができる。それでいて、リリーサを操作すれば、抜け止め具による抜脱阻止作用を解除できるので、ケーブル交換等の作業を容易に実施できる。また、同軸ケーブルの端部を所定の形状に処理して外部筒体に挿入するだけで、箱体への装着が完了するので、同軸ケーブルの装着が容易である。
【００３６】
請求項８の発明によれば、請求項６又は７の効果に加えて、リリーサは簡単な構造及び形状で済み、同軸ケーブル装着手段の構成が複雑になることがない。
【図面の簡単な説明】
【図１】本発明に係る同軸ケーブル用コネクタの第１の実施形態を示し、一部断面で示した同軸ケーブル用コネクタの側面図である。
【図２】図１の抜け止め具を示し、（ａ）は斜視図、（ｂ）は端面説明図である。
【図３】図１のＡ部拡大図で、スリーブ部の作用により、抜け止め具の変形する様子を示す図である。
【図４】図１のＡ部拡大図で、リリーサの作用説明図である。
【図５】抜け止め具の他の例を示す斜視図である。
【図６】本発明に係る同軸ケーブル用コネクタの第２の実施形態を示し、一部断面で示した同軸ケーブル用コネクタの側面図である。
【図７】本発明に係る電子機器収納用箱体の実施形態の一例を示す断面説明図である。
【符号の説明】
１，１ａ，１ｂ・・内部筒体、２・・外部筒体、３・・抜け止め具、３ａ・・胴部、３ｂ・・咬持部、３ｃ・・係止部、４・・固定具、４ａ・・案内突起、５・・リリーサ、５ａ・・摺動部、５ｂ・・操作部、６・・ナット体、７・・同軸ケーブル、９・・挿通孔、１０・・嵌合部、１１・・円盤状突起、１２・・スリーブ部、１４・・切り込み、１８・・抜け止め具、１８ａ・・胴部、１８ｂ・・咬持部、１８ｃ・・係止部、２１・・ボルト体、２２・・連通孔、２３・・連結金具、２６・・箱体、２７・・回路基板、２８・・同軸ケーブル装着手段、３０・・連結金具。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a coaxial cable connector mounted on an end of a coaxial cable for connecting coaxial cables or a coaxial cable to a housing of an electronic device, and an electronic device housing box to which a coaxial cable can be directly connected.
[0002]
[Prior art]
Conventionally, when attaching a connector to a coaxial cable, the ring part integrated with the ferrule or shell is caulked using pliers or a special tool to prevent the cable from coming off, and the method of attaching the connector to the cable is widely adopted. (For example, refer to the prior art in Patent Document 1).
However, in this method, caulking must be performed using a tool, and the mounting work of the connector is troublesome. Therefore, as described in Patent Document 1, an inner claw portion is provided on an inner tubular portion, and an outer claw portion is provided on an outer tubular portion. A configuration in which a claw portion is provided and a connector can be attached to the connector simply by inserting a coaxial cable, and a ring-shaped stopper having a claw portion is attached to a coaxial cable as shown in Patent Document 2 filed by the present inventors. The structure of the connector that fits outside, prevents the cable from being pulled out by making the claws bite into the cable, and prevents the cable from being pulled out without the need for a caulking process, and the structure of the electronic device storage box body provided with similar terminals Are known.
[0003]
[Patent Document 1]
JP-A-11-288767 (FIG. 10)
[Patent Document 2]
JP-A-2002-184536 (FIG. 7)
[0004]
[Problems to be solved by the invention]
However, the technologies disclosed in Patent Documents 1 and 2 do not have a release function, and it is difficult to remove the coaxial cable once attached. Therefore, when the coaxial cable needs to be changed, a new connector is required. To change the length of the cable, the connector of the cable was cut and a new connector was attached. In addition, there has been no alternative but to replace the box itself for the electronic device storage box.
SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a coaxial cable connector and a box for storing an electronic device, in which a coaxial cable is hard to come off and has a release function.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention according to claim 1 is a coaxial cable connector having a cable mounting means for mounting a coaxial cable at a rear part and a connecting means for connecting to a connection target of the coaxial cable at a front part. The cable mounting means is formed in a substantially cylindrical outer cylindrical body into which the coaxial cable is inserted, and a sleeve portion inserted between the inner insulator and the outer conductor of the coaxial cable; A stopper having a stopper for preventing the removal of the coaxial cable by the stopper, the stopper having elasticity and having the same central axis as the outer cylinder. A torso portion, a squeezed portion formed in the front portion of the torso portion, a tip portion of which is in line contact with the periphery of the coaxial cable to perform an occlusal operation; and an outer cylinder provided at the rear portion of the torso portion. And a coaxial cable By inserting the mounting operation Bull to the external cylinder body, wherein the clamping and unit prevents the pulling out of the coaxial cable and clamping and the coaxial cable.
[0006]
According to a second aspect of the present invention, in the first aspect of the present invention, the stopper has a ratio of the length of the torso to the bite portion, and the ratio of the torso / bite portion is approximately 2.25 to 2.6. Features.
[0007]
According to a third aspect of the present invention, in the first or second aspect of the invention, the releaser comprises a cylindrical sliding portion and a flange-shaped operating portion for operating the sliding portion, and the tip of the sliding portion is a back portion of the biting portion. And the sliding portion slides forward, whereby the leading end of the sliding portion pushes up the biting portion from behind, thereby releasing the biting operation of the coaxial cable.
[0008]
According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the front surface of the outer tubular body has an insertion hole for inserting an inner insulator portion including a center conductor of the mounted coaxial cable, and the insertion hole. A fitting portion for fitting and holding the connection means is projected around the periphery of the connection means, and the connection means is a cylindrical nut body rotatably fitted and held on the fitting portion, from the front part to the inner surface. A female screw is cut, and a central conductor of the coaxial cable inserted and mounted protrudes from the insertion hole and is arranged on a central axis of the nut body.
[0009]
According to a fifth aspect of the present invention, in any one of the first to third aspects of the present invention, the connecting means is a bolt body integrally formed with the outer cylinder and having a male thread cut therearound. Has a communication hole formed through the sleeve portion in the outer cylinder, the communication hole is a hole for inserting the center conductor to be connected, and the center conductor of the coaxial cable inserted and mounted in the outer cylinder. It is a hole to be inserted, and the two are connected by a connection fitting arranged inside the communication hole.
[0010]
The invention according to claim 6 is an electronic device housing box having a coaxial cable mounting means for mounting a coaxial cable from outside, wherein the coaxial cable mounting means has a substantially cylindrical outer cylindrical body into which a coaxial cable is inserted. And a sleeve part inserted between the inner insulator and the outer conductor of the coaxial cable, a stopper for preventing removal of the coaxial cable, and releasing the removal of the coaxial cable by the stopper. A stopper having elasticity, a cylindrical body having the same central axis as the outer cylinder, a constriction formed at a front portion of the body, and a coaxial cable at a tip end. It is composed of a holding portion that makes a line contact with the periphery and performs a holding operation, and a locking portion that locks to the external cylinder provided at the rear portion of the body, and is inserted into the external cylinder to perform coaxial operation. The cable is attached to the box, There wherein the blocking pulling out of the coaxial cable and clamping and the coaxial cable.
[0011]
According to a seventh aspect of the present invention, in the invention of the sixth aspect, the retaining device has a ratio of the length of the torso to the bite portion, and the ratio of the torso / bite portion is 2.25 to 2.6. The electronic device storage box according to the above.
[0012]
According to an eighth aspect of the present invention, in the invention of the sixth or seventh aspect, the releaser comprises a cylindrical sliding portion and a flange-shaped operating portion for operating the sliding portion, and the leading end of the sliding portion is the back of the biting portion. And the sliding portion slides forward, whereby the leading end of the sliding portion pushes up the biting portion from behind, thereby releasing the biting operation of the coaxial cable.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a first embodiment of a coaxial cable connector according to the present invention, showing a coaxial cable connection plug. FIG. 1 is an explanatory diagram showing a main part in cross section.
In FIG. 1, 1 is an inner cylinder, 2 is an outer cylinder, 3 is a stopper for preventing the attached cable from coming off, 4 is a fixing member for fixing the stopper 3, and 5 is removal of the stopper 3. A releaser for releasing the stopping action, 6 is a nut body which is a connecting means for connecting to a connection object such as a receptacle, and 7 is a coaxial cable, which will be described below with the left side in the figure as a front.
[0014]
The outer cylindrical body 2 is a cylindrical body having a through hole 9 at the end thereof for inserting the distal end portion of the inner cylindrical body 1 and having an open rear end. The inner cylindrical body 1 is also substantially cylindrical, and the distal end is an outer cylindrical body. A fitting portion 10 protruding forward from the inside of the body 2 and connected to the nut body 6 is formed. A disk-like projection 11 is formed at a substantially central portion of the inner cylindrical body 1 so as to be engaged with the outer cylindrical body 2 and integrated with the outer cylindrical body 2. A through hole 13 is formed to pass through 7a.
A sleeve portion inserted between the inner insulator 7a and the protective coating 7b of the coaxial cable 7 and, more precisely, between the inner insulator 7a and the outer conductor 7c is located rearward from the portion where the disk-shaped projection 11 of the inner cylinder 1 is formed. 12 is formed. The sleeve portion 12 is formed so as to be easily inserted by reducing the thickness of the rear insertion end.
[0015]
The stopper 3 is made of an elastic metal piece, for example, stainless steel, and has a tubular body 3a at the center as shown in the perspective view of FIG. A holding portion 3b for holding the cable 7 is formed to be narrow, and a locking portion 3c for locking to the outer cylindrical body 2 is formed at a rear portion in a flange shape.
As shown in the end face explanatory view of FIG. 2B, the holding portion 3 b is provided with an average angle Q <b> 1 of 20 ° to 40 ° at the tip with respect to the direction orthogonal to the central axis M of the outer cylindrical body 2, and It is bent in the M direction, and the inside of the distal end portion is formed at an acute angle with an angle Q2 from the central axis M. The two angles Q1 and Q2 are formed so that Q2> Q1.
Further, the tip of the biting portion 3b is disposed so as to be located forward of the tip of the sleeve portion 12 of the inner cylinder 1, and the ratio L1 / L2 of the length L1 of the cylindrical portion 3a to the length L2 of the biting portion 3b is determined. 2.5. When the ratio L1 / L2 is in the range of 1 to 3.5, the cylindrical portion 3a exhibits a high pull-out preventing action against the pulling of the coaxial cable 7. In particular, when L1 / L2 is 2.25 to 2.6, an excellent withdrawal inhibiting action is exhibited, which is preferable.
[0016]
A plurality of slit-shaped cuts 14 are provided from the tip of the holding portion 3b to the body 3a, and the holding portion 3b and the body 3a are formed to have elasticity. The bite 3b is expanded by the inserted coaxial cable 7 and performs a biting operation so that the bite 3b bites around the coaxial cable 7. However, although the holding portion 3b has a sharp tip, it does not penetrate deeply due to line contact with the coaxial cable 7.
When the tensile stress of the coaxial cable 7 inserted and mounted acts on the retaining member 3 thus formed, the holding portion 3b is pulled backward, and the stress is concentrated on the central trunk portion 3a. As a result, the retaining member 3 causes buckling deformation of the body portion 3a. For example, when the retaining member 3 is formed of stainless steel having a thickness of 0.2 mm, a tensile force of 300 N or more is generated. , Sufficient tensile strength can be obtained. And even in such a state, since the tip of the holding portion 3b does not bite into the coaxial cable 7, the coaxial cable 7 does not break from the holding portion.
[0017]
Further, the locking portion 3c is fixed to the outer cylindrical body 2 by the fixture 4. The outer cylindrical body 2 is provided on the inner surface thereof with a locking groove 15 for locking the fixing tool 4, and the fixing tool 4 is formed in a ring shape having a diameter matching the locking groove 15. A space 4b is provided to provide elasticity, and the diameter is reduced. Then, after reducing the diameter and inserting the outer cylindrical body 2, the diameter is restored by the locking groove 15, and the outer cylinder 2 is mounted properly.
Note that the inner diameter of the outer cylindrical body 2 behind the locking groove 15 is formed with a diameter corresponding to the locking portion 3c so that the stopper 3 can be inserted. The engaging portions 3c of the engaging members 3 are engaged with each other, and the fixing members 4 are mounted in the engaging grooves 15, so that the retaining members 3 are held and fixed.
[0018]
The releaser 5 includes a cylindrical sliding portion 5a that slides on the coaxial cable 7 and an operating portion 5b that operates the sliding portion 5a. The sliding portion 5a has an inner diameter through which the coaxial cable 7 is inserted, is inserted from the rear portion of the outer cylindrical body 2 inside the stopper 3, and has a length in contact with the back of the holding portion 3b. A guide projection 4a for engaging with the releaser 5 is provided on the inner surface of the fixture 4, and a guide groove 16 for inserting and engaging the guide projection 4a is formed in the sliding portion 5a. Is prevented. The guide groove 16 is formed to be sufficiently longer in the front-rear direction than the guide protrusion 4a, and allows the releaser 5 to slide.
The operation part 5b is formed in a flange shape at the rear end of the sliding part 5a, is disposed behind the outer cylindrical body 2, and pushes the operation part 5b to slide forward, thereby enlarging the part A in FIG. As shown in (2), the tip pushes up the holding portion 3b, and the holding portion 3b rises from the coaxial cable 7. As a result, the action of holding the coaxial cable by the stopper 3 is released, that is, the removal preventing action is released.
[0019]
The nut body 6 is internally threaded, the rear part is fitted to the fitting part 10 of the internal cylinder 1 protruding from the external cylinder 2, and is rotatably connected to the external cylinder 2. . Note that the fitting portion 10 of the inner cylinder 1 is enlarged in diameter at the tip after fitting with the nut body 6.
[0020]
Next, a procedure for assembling the plug and mounting the plug on a coaxial cable will be described. When assembling the plug, first, the inner cylinder 1 is inserted into the outer cylinder 2 from the rear and connected thereto. At this time, the inner cylinder 1 is fixedly integrated by press fitting or the like. In the process, the front end fitting portion 10 of the inner cylindrical body 1 is projected forward of the outer cylindrical body 2 from the insertion hole 9, the nut body 6 is fitted into the projected fitting portion 10, and the nut body is removed from the front. When the diameter of the fitting portion 9 is increased through the nut, the nut body 6 is rotatably connected to the outer cylindrical body 2.
[0021]
Thereafter, the stopper 3 is inserted into the outer cylindrical body 2 to engage the locking portion 3c with the locking groove 15, and the fixing tool 4 is attached to the locking groove 15 to lock and lock the stopper 3. I do. However, the fixing tool 4 is mounted in a state where the releaser 5 is assembled, the release tool 5 is inserted into the fixing tool 4, the guide protrusion 4 a of the fixing tool 4 is engaged with the guide groove 16 of the releaser 5, and the two are connected. And inserted into the outer cylinder 2. This insertion operation can be easily performed by reducing the diameter of the fixing tool 4, and thus the plug is formed.
[0022]
Next, the mounting operation of the coaxial cable is started. The coaxial cable 7 is firstly processed into a predetermined shape at the end to which the plug is mounted. The inner insulator 7a and the protective coating 7b are cut so that the center conductor 7d and the inner insulator 7a are exposed to a predetermined length. Thereafter, the coaxial cable 7 may be inserted into the outer cylinder 2 from behind.
The insertion of the coaxial cable 7 is performed up to a predetermined position where the protective coating 7b contacts the disk-shaped protrusion 11 of the inner cylinder 1. By doing so, the sleeve portion 12 is inserted between the inner insulator 7a and the outer conductor 7c, the inner cylinder 1 is securely connected to the outer conductor 7c, and at the same time, the diameter of the protective coating 7b is increased. The holding portion 3b disposed at a position overlapping the sleeve portion 12 acts to reliably hold the coaxial cable 7 as shown in FIG. Further, the tip of the center conductor 7d protrudes to the position of the tip of the nut body 6, and the center conductor 7d of the coaxial cable 7 is arranged on the center axis of the nut body 6, thereby obtaining the center conductor of the connection means.
[0023]
As described above, the coaxial cable attached to the connector does not come off even when a tensile stress is applied, and can be securely attached. Nevertheless, if the releaser is operated, the removal preventing action of the retaining member can be released, so that operations such as cable replacement can be easily performed.
Furthermore, since the connector mounting is completed by a simple mounting operation of forming a cable mounting means having a retaining member in the outer cylindrical body and inserting the coaxial cable whose end portion is processed into a predetermined shape into the outer cylindrical body, In addition, the connector can be easily mounted.
Further, the releaser has a simple structure and shape, does not complicate the configuration of the connector, and can be connected to a receptacle terminal of an electronic device or the like by using a plug as the connection means.
[0024]
FIG. 5 shows another example of the stopper. The difference from the stopper 3 shown in FIG. 2 will be described. Between each notch 14 provided from the tip of the holding portion 18b to the cylindrical portion 18a, from the end of the locking portion 18c to the cylindrical portion 18a. Thus, a second cut 19 is formed.
In this manner, by forming the notch from the rear side, it is possible to impart elasticity not only to the biting portion and the cylindrical portion but also to the locking portion. Easier to do.
2 and 5, the cutouts 14 are provided at four places in the drawing, but if there are at least three places, the body parts 3a, 18a and the holding parts 3b, 18b have elasticity. It can be generated, and notches may be provided at five or more places.
[0025]
Next, a second embodiment of the coaxial cable connector according to the present invention will be described with reference to FIG. FIG. 6 is a side view showing a main part of the coaxial cable connection receptacle in a cross section. The difference from FIG. 1 is that the connection means is a bolt body 21 having an external thread. The same components as those in FIG. 1 are denoted by the same reference numerals.
[0026]
The bolt body 21 has a communication hole 22 formed through the sleeve portion 12 in the outer cylindrical body 2. The communication hole 22 connects the center conductor to be connected and the center conductor of the coaxial cable 7 attached to the connector. Connecting metal fittings 23 are arranged. The connection fitting 23 is disposed in a resin holding tube 24 inserted into the communication hole 22. The holding tube 24 has an insertion hole 24a for inserting a center conductor on the front surface and the back surface, respectively. The inner cylindrical body 1 a has a sleeve portion 12 and a disk-shaped protrusion 11, and the front surface of the disk-shaped protrusion 11 is formed flat, and is integrally fixed to the inner part of the outer cylindrical body 2.
[0027]
To assemble the receptacle, first, the holding cylinder 24 with the connecting fitting 23 attached thereto is inserted into the bolt body 21 from the rear of the outer cylinder 2, and then the inner cylinder 1a is similarly inserted and press-fit from the rear. Thereafter, as in the case of the first embodiment, it is assembled by assembling the stopper 3, the fixture 4, the releaser 5, and the like.
The mounting procedure of the coaxial cable is the same as that of the first embodiment, and the coaxial cable 7 whose end is processed into a predetermined shape is securely inserted by inserting the coaxial cable 7 into the outer cylindrical body 2, and a tensile stress acts. There is no such thing as falling out. Then, the center conductor 7d of the inserted coaxial cable 7 is inserted into the holding cylinder 24 and is held by the connection fitting 23.
By forming the connector as a receptacle in this way, for example, the plug as in the first embodiment can be connected, and the coaxial cables can be easily connected.
[0028]
In the above embodiment, the outer cylindrical body has a cylindrical shape. However, the outer cylindrical body may have another shape, for example, a hexagonal prism shape. The connecting means may have a shape other than the plug or receptacle structure. If the cable attaching means in the outer cylinder has the above-described structure, the detaching operation can be favorably exhibited.
[0029]
FIG. 7 shows an electronic device housing box (hereinafter, simply referred to as a box) according to the present invention. FIG. 7 is an explanatory cross-sectional view of the box, in which 26 is a box, 27 is a circuit board assembled in the box, and 28 is a coaxial cable mounting means. The same components as those in FIG. 1 are denoted by the same reference numerals.
[0030]
The box 26 is composed of a main body 26a and a cover plate 26b, both of which are made of metal and whose internal space is shielded from the outside and is hermetically sealed. Further, a cylindrical external cylinder 2 protrudes from a side surface of the main body 26a, and the external cylinder 2b is formed integrally with the main body 26a. A coaxial cable mounting means 28 similar to that shown in FIG. 1 is formed inside the outer cylindrical body 2b. The inner cylindrical body fixed to the outer cylindrical body and having the sleeve portion 12, the stopper 3, the fixing tool 4, and the releaser 5 is provided.
On the other hand, a connection hole 29 is formed at the end of the outer cylindrical body 2b in the box inside to insert the center conductor 7d of the connected coaxial cable 7 into the inner space of the box 26, and a connection fitting 30 connected to the center conductor 7d. Form connection means for a coaxial cable which is assembled and inserted into the circuit board 27 arranged in the box 26 in accordance with the position of the connection hole 29.
[0031]
In this manner, the same coaxial cable mounting means as the above connector can be provided in the box body, and the mounted coaxial cable does not come off even if a tensile stress is applied due to the action of the stopper, and it is robust. Can be installed. Nevertheless, if the releaser is operated, the removal preventing action of the retaining member can be released, so that operations such as cable replacement can be easily performed. In addition, simply by processing the end of the coaxial cable into a predetermined shape and inserting the coaxial cable into the outer cylindrical body, the mounting on the box is completed, so that the mounting of the coaxial cable is easy.
Further, the releaser has a simple structure and shape, and the configuration of the coaxial cable mounting means does not become complicated.
[0032]
In this embodiment of the electronic device storage box, the outer cylinder 2 is projected outside the box 26, but is projected into the box interior space in the opposite direction to connect the coaxial cable mounting means to the outside. You may form in a cylinder. By doing so, the interior space is narrowed, but the appearance of the box is improved. Further, although the connection means is assembled on the circuit board, the connection fitting 30 may be provided on the main body 26a side.
In addition, in any of the embodiments, a release is provided in order to have a release function. However, if the release function is used for a portion that does not require the release function, it is not necessary to provide a release, and the attached coaxial cable is hardly pulled out. A robust connector can be configured at a lower cost.
[0033]
【The invention's effect】
As described in detail above, according to the first and second aspects of the present invention, the coaxial cable attached to the connector does not come off even when a tensile stress is applied due to the action of the retaining member, so that the coaxial cable can be securely attached. Can be. Nevertheless, if the releaser is operated, the removal preventing action of the retaining member can be released, so that operations such as cable replacement can be easily performed. Further, the connector mounting is completed only by processing the end of the coaxial cable into a predetermined shape and inserting the coaxial cable into the external cylinder, so that the connector mounting is easy.
[0034]
According to the invention of claim 3, in addition to the effect of claim 1 or 2, the releaser has a simple structure and shape, and the configuration of the connector does not become complicated.
According to the invention of claim 4, in addition to the effect of any one of claims 1 to 3, it can be connected to a receptacle terminal of an electronic device or the like. Further, according to the invention of claim 5, in addition to the effect of any one of claims 1 to 3, it is possible to connect to a plug terminal and to easily connect coaxial cables.
[0035]
According to the sixth and seventh aspects of the present invention, the coaxial cable attached to the box does not come off even if a tensile stress is applied due to the action of the retaining member, and can be securely attached. Nevertheless, if the releaser is operated, the removal preventing action of the retaining member can be released, so that operations such as cable replacement can be easily performed. In addition, simply by processing the end of the coaxial cable into a predetermined shape and inserting the coaxial cable into the outer cylindrical body, the mounting on the box is completed, so that the mounting of the coaxial cable is easy.
[0036]
According to the invention of claim 8, in addition to the effect of claim 6 or 7, the releaser has a simple structure and shape, and the configuration of the coaxial cable mounting means does not become complicated.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of a coaxial cable connector according to the present invention, and is a side view of the coaxial cable connector shown in a partial cross section.
FIGS. 2A and 2B show the stopper of FIG. 1, wherein FIG. 2A is a perspective view and FIG.
FIG. 3 is an enlarged view of a portion A in FIG. 1, showing a state in which a stopper is deformed by the action of a sleeve portion.
FIG. 4 is an enlarged view of a portion A in FIG. 1 and is an operation explanatory view of a releaser.
FIG. 5 is a perspective view showing another example of a retaining member.
FIG. 6 shows a second embodiment of the coaxial cable connector according to the present invention, and is a side view of the coaxial cable connector shown in a partial cross section.
FIG. 7 is an explanatory sectional view showing an example of the embodiment of the electronic device housing box according to the present invention.
[Explanation of symbols]
1, 1a, 1b, inner cylinder, 2, outer cylinder, stopper, 3a, trunk, 3b, bite, 3c, locking, 4, fixing , 4a guide protrusion, 5 releaser, 5a sliding part, 5b operating part, 6 nut body, 7 coaxial cable, 9 insertion hole, 10 fitting part, 11 ··· disk-shaped projection, 12 ··· sleeve part, 14 ··· cut, 18 · · · stopper, 18a · · · body, 18b · · · biting part, 18c · · · locking part, 21 · · bolt body , 22 communicating holes, 23 connecting metal fittings, 26 box body, 27 circuit board, 28 coaxial cable mounting means, 30 connecting metal fittings.

Claims

A coaxial cable connector having cable mounting means for mounting a coaxial cable at a rear portion, and connecting means for connecting to a connection target of the coaxial cable at a front portion,
The cable mounting means is formed in a substantially cylindrical outer cylinder into which the coaxial cable is inserted, and a sleeve portion inserted between the inner insulator and the outer conductor of the coaxial cable, and prevents the coaxial cable from being pulled out. And a releaser for releasing the coaxial cable from being removed by the stopper.
The stopper has a tubular body having elasticity and the same central axis as the outer tubular body, and is formed so as to be narrow at the front of the body. A holding portion for holding and a locking portion for locking to the outer cylinder provided at the rear portion of the trunk portion,
A connector for a coaxial cable, wherein a coaxial cable is inserted into and attached to the outer cylindrical body so that the holding portion bites the coaxial cable to prevent the coaxial cable from being pulled out.

2. The coaxial cable connector according to claim 1, wherein the stopper has a ratio of the length of the trunk portion to the bite portion, and the ratio of the trunk portion / the bite portion is 2.25 to 2.6. 3.

The releaser is composed of a cylindrical sliding portion and a flange-shaped operating portion for operating the sliding portion, and the tip of the sliding portion is disposed behind the biting portion, and the sliding portion slides forward. 3. The coaxial cable connector according to claim 1, wherein the tip of the sliding portion pushes up the biting portion from behind to release the biting operation of the coaxial cable.

The front surface of the outer cylindrical body has an insertion hole through which the inner insulator portion including the center conductor of the mounted coaxial cable is inserted, and a fitting portion for fitting and holding the connection means around the insertion hole is provided.
The connecting means is a cylindrical nut body whose rear part is rotatably fitted and held in the fitting part, and is formed by cutting a female screw from the front part to the inner surface, so that the center conductor of the coaxial cable inserted and mounted is inserted through the center conductor. The coaxial cable connector according to any one of claims 1 to 3, wherein the connector protrudes from a hole and is disposed on a central axis of the nut body.

The connection means is a bolt body formed integrally with the outer cylinder and having a male thread cut around the body, and has a communication hole formed on the center axis of the bolt body so as to extend through a sleeve portion in the outer cylinder. The communication hole is a hole for inserting a center conductor to be connected, and a hole for inserting a center conductor of a coaxial cable inserted and mounted in an outer cylinder, and the two are connected by a connection metal fitting disposed inside the communication hole. The coaxial cable connector according to any one of claims 1 to 3, wherein:

An electronic device housing box having a coaxial cable mounting means for mounting a coaxial cable from outside,
The coaxial cable mounting means is formed in a substantially cylindrical outer cylindrical body into which the coaxial cable is inserted, and has a sleeve portion inserted between the inner insulator and the outer conductor of the coaxial cable, and removes the coaxial cable. Having a release stopper for preventing the removal of the coaxial cable by the stopper,
The stopper has a tubular body having elasticity and the same central axis as the outer tubular body, and is formed so as to be narrow at the front of the body. A holding portion for holding and a locking portion for locking to the outer cylinder provided at the rear portion of the trunk portion,
An electronic device, wherein the coaxial cable is mounted on the box body by inserting and mounting the external coaxial cable into the outer cylinder, and the holding portion bites the coaxial cable to prevent the coaxial cable from being pulled out. Box for storage.

7. The electronic device housing box according to claim 6, wherein the stopper has a ratio of the length of the torso to the holding portion, and the ratio of the torso / holding portion is 2.25 to 2.6.

The releaser is composed of a cylindrical sliding portion and a flange-shaped operating portion for operating the sliding portion, and the tip of the sliding portion is disposed behind the biting portion, and the sliding portion slides forward. 8. The electronic device housing box according to claim 6, wherein the tip of the sliding portion pushes up the holding portion from behind to release the holding operation of the coaxial cable.