JP4685320B2

JP4685320B2 - Coaxial cable connector and electronic device storage box

Info

Publication number: JP4685320B2
Application number: JP2002296565A
Authority: JP
Inventors: 敏博杉浦; 隆史為実
Original assignee: Maspro Denkoh Corp
Current assignee: Maspro Denkoh Corp
Priority date: 2002-10-09
Filing date: 2002-10-09
Publication date: 2011-05-18
Anticipated expiration: 2022-10-09
Also published as: JP2004134192A

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為に、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する一方、前部に前記同軸ケーブルの接続対象へ接続するために雌ねじが切られたナット体を有し、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、後方側の先端に向けて肉薄に形成されて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、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、該挿通孔の周囲に前記ナット体を回転可能に嵌合保持する嵌合部が突設され、挿入装着され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同軸ケーブル用コネクタであって、前記スリーブ部と前記嵌合部とは、前記外部筒体に嵌合保持される円盤状突起を備えた内部筒体に一体に形成され、前記抜け止め具は、前記外部筒体と同一中心軸を有する筒形状胴部と、同軸ケーブル周囲に線接触して咬持動作するよう前記胴部の前部に窄み形成した咬持部と、前記胴部の後部に設けられて前記外部筒体に係止するフランジ状係止部とから成り、前記胴部と前記咬持部の長さの比、胴部／咬持部が２．２５〜２．６であって、前記咬持部から胴部に亘り連続して形成された切り込みにより前記胴部及び前記咬持部は弾性を有して成り、前記リリーサは、円筒状摺動部と該摺動部を操作する鍔状操作部とを有して前記摺動部先端が前記咬持部の背部に配置され、前記外部筒体内へ挿入された同軸ケーブルに対し、前記咬持部が咬持して同軸ケーブルの抜脱を阻止し、前記摺動部を前方へ摺動することで、摺動部先端が前記咬持部を後方から押上げて同軸ケーブルの咬持動作を解除することを特徴とする。
【０００９】
請求項２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する一方、前部に前記同軸ケーブルの接続対象へ接続するために雄ねじが切られたボルト体を有し、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、後方側の先端に向けて肉薄に形成されて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、前記ボルト体は外部筒体に一体形成され、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、前記接続対象の中心導体と前記外部筒体に装着された同軸ケーブルの中心導体とが連結される同軸ケーブル用コネクタであって、前記スリーブ部は、前記外部筒体に嵌合保持される円盤状突起を備えた内部筒体に一体に形成され、前記抜け止め具は、前記外部筒体と同一中心軸を有する筒形状胴部と、同軸ケーブル周囲に線接触して咬持動作するよう前記胴部の前部に窄み形成した咬持部と、前記胴部の後部に設けられて前記外部筒体に係止するフランジ状係止部とから成り、前記胴部と前記咬持部の長さの比、胴部／咬持部が２．２５〜２．６であって、前記咬持部から胴部に亘り連続して形成された切り込みにより前記胴部及び前記咬持部は弾性を有して成り、前記リリーサは、円筒状摺動部と該摺動部を操作する鍔状操作部とを有して前記摺動部先端が前記咬持部の背部に配置され、前記外部筒体内へ挿入された同軸ケーブルに対し、前記咬持部が咬持して同軸ケーブルの抜脱を阻止し、前記摺動部を前方へ摺動することで摺動部先端が前記咬持部を後方から押上げて同軸ケーブルの咬持動作を解除することを特徴とする同軸ケーブル用コネクタ。
【００１０】
請求項３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、箱体に同軸ケーブルが挿入される略筒形状の外部筒体を突設してその内部に形成され、同軸ケーブルを挿入する先端に向けて肉薄に形成されて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、前記外部筒体と同一中心軸を有する筒形状胴部と、同軸ケーブル周囲に線接触して咬持動作するよう箱体側となる前記胴部の前部に窄み形成した咬持部と、前記胴部の同軸ケーブル挿入側となる後部に設けられて前記外部筒体に係止するフランジ状係止部とから成り、前記胴部と前記咬持部の長さの比、胴部／咬持部が２．２５〜２．６であって、前記咬持部から胴部に亘り連続して形成された切り込みにより前記胴部及び前記咬持部は弾性を有して成り、前記リリーサは、円筒状摺動部と摺動部を操作する鍔状操作部とを有して前記摺動部先端を前記咬持部の内側となる背部に配置し、前記外部筒体内へ挿入された同軸ケーブルに対し、前記咬持部が咬持して同軸ケーブルの抜脱を阻止し、前記摺動部を箱体方向へ摺動することで、摺動部先端が前記咬持部を背部から押上げて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。
更に、リリーサは簡単な構造及び形状で済むし、コネクタの構成が複雑になることがない。また、電子機器等のレセプタクル端子に接続できる。
【００３４】
請求項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。
更に、リリーサは簡単な構造及び形状で済むし、コネクタの構成が複雑になることがない。そして、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３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】
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。
【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]
BACKGROUND OF THE INVENTION
The present invention relates to a coaxial cable connector to be attached to an end portion of a coaxial cable in order to connect the coaxial cables to each other or a casing of the electronic device, and an electronic device housing box that can be directly connected to the coaxial cable.
[0002]
[Prior art]
When attaching a connector to a coaxial cable, in order to prevent the cable from coming off, a method of attaching the connector to the cable by caulking the ring part integrated with the ferrule or shell using pliers or special tools has been widely used. (For example, refer to the prior art in Patent Document 1).
However, since this method has to be caulked using a tool, and the mounting work of the connector is troublesome, as described in Patent Document 1, the inner claw portion is provided on the inner cylinder portion and the outer cylinder portion is provided on the outer side. A structure that can be attached to a connector simply by inserting a coaxial cable by providing a claw portion, and a ring-shaped retainer having a claw portion on a coaxial cable as shown in Patent Document 2 previously filed by the present inventors. The structure of the connector and the electronic device storage box provided with the same terminal that fits externally and prevents the cable from being pulled out by biting the claw part into the cable and preventing the cable from being pulled out. Are known.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-288767 (FIG. 10)
[Patent Document 2]
JP 2002-184536 A (FIG. 7)
[0004]
[Problems to be solved by the invention]
However, the techniques disclosed in Patent Documents 1 and 2 do not have a release function, and it is difficult to remove a coaxial cable once attached. Therefore, when a coaxial cable is to be changed, a new connector is required. To change the length of the cable, the cable connector was cut and a new connector was attached. In addition, the electronic device storage box has no other way but to replace the box itself.
SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a coaxial cable connector and an electronic device housing box that do not easily come out of a coaxial cable and have a release function.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a first aspect of the invention, one that having a cable attachment means for attaching the coaxial cable to the rear, internal thread is cut in order to connect to a connection target of the coaxial cable to the front The cable mounting means has a nut body, the cable mounting means is formed in a substantially cylindrical outer cylinder into which the coaxial cable is inserted, and is formed thin toward the tip on the rear side so that the inner insulator and the outer conductor of the coaxial cable are formed. And a releaser for preventing the coaxial cable from being pulled out by the retaining member, and a front surface of the outer cylinder is In addition, there is an insertion hole through which the inner insulator portion including the central conductor of the attached coaxial cable is inserted, and a fitting portion that rotatably fits and holds the nut body is provided around the insertion hole so as to be inserted and mounted. Coaxial cable A coaxial cable connector having a central conductor protruding from the insertion hole and disposed on a central axis of the nut body, wherein the sleeve portion and the fitting portion are fitted to the outer cylindrical body is formed integrally with the inner tubular body provided with a disk-shaped projection to be retained, the retaining member includes a cylindrical body portion which have a said external cylinder and the same central axis, in line contact around a coaxial cable bite The barrel portion is formed by constricting the front portion of the barrel portion so as to be held, and a flange-like latching portion provided at the rear portion of the barrel portion and latched to the external cylinder, The ratio of the length of the biting portion, the trunk portion / the biting portion is 2.25 to 2.6, and the trunk portion and the aforementioned portion are formed by incisions formed continuously from the biting portion to the trunk portion. bitten portion comprises a resilient, it said releaser includes a flange-like operating portion for operating the cylindrical sliding portion and the sliding portion Disposed on the back of the slide tip is the bitten portion has, with respect to the coaxial cable is inserted into the outer cylinder body, wherein the clamping and section prevents pulling out of the coaxial cable and clamping and, By sliding the sliding portion forward, the tip of the sliding portion pushes up the biting portion from the rear to release the biting operation of the coaxial cable.
[0009]
The invention of claim 2 has a cable mounting means for mounting a coaxial cable at the rear part, and has a bolt body with a male thread cut at the front part for connection to the connection target of the coaxial cable, and the cable mounting means. Is formed in a substantially cylindrical outer cylinder into which the coaxial cable is inserted, and is formed thinly toward the rear end, and is inserted between the inner insulator of the coaxial cable and the outer conductor; A stopper for preventing the coaxial cable from being pulled out, and a releaser for releasing the blocking prevention of the coaxial cable by the stopper, wherein the bolt body is integrally formed with the outer cylindrical body, On the shaft, there is a communication hole formed through the sleeve portion in the outer cylinder, and the communication hole is a hole for inserting the central conductor to be connected and the center of the coaxial cable inserted and attached to the outer cylinder. Insert conductor A connector for a coaxial cable in which a central conductor to be connected and a central conductor of a coaxial cable attached to the outer cylindrical body are connected by a connection fitting disposed inside the communication hole, The sleeve portion is integrally formed with an inner cylindrical body provided with a disk-like projection fitted and held in the outer cylindrical body, and the retaining member includes a cylindrical body portion having the same central axis as the outer cylindrical body. A biting portion formed in a front portion of the barrel portion so as to perform a biting operation in line contact with the periphery of the coaxial cable, and a flange-like engagement portion provided at the rear portion of the barrel portion and engaged with the outer cylindrical body. A length ratio between the body part and the biting part, and the body part / biting part is 2.25 to 2.6, continuously from the biting part to the body part. The body portion and the biting portion have elasticity due to the formed cut, and the releaser A coaxial sliding cable having a cylindrical sliding part and a hook-like operating part for operating the sliding part, the tip of the sliding part being disposed on the back of the biting part and inserted into the external cylinder On the other hand, the biting portion holds the coaxial cable to prevent the coaxial cable from being pulled out, and by sliding the sliding portion forward, the tip of the sliding portion pushes up the biting portion from the rear side of the coaxial cable. A coaxial cable connector characterized by releasing the biting operation .
[0010]
The invention of claim 3 is an electronic equipment storage box having a coaxial cable mounting means for mounting a coaxial cable from the outside, wherein the coaxial cable mounting means has a substantially cylindrical shape into which the coaxial cable is inserted into the box. A sleeve portion that is formed inside and projecting from an external cylinder, and is formed thinly toward the distal end into which the coaxial cable is inserted, and is inserted between the inner insulator of the coaxial cable and the outer conductor, and the coaxial cable a stopper member to prevent the dropping off, and a releaser for releasing the pull-out blocking of the coaxial cable by該抜only stop, the retaining member is cylindrical to have a said external cylinder and the same central axis A barrel part, a bite part formed narrowed at the front part of the trunk part on the box side so as to perform a biting operation in line contact with the periphery of the coaxial cable, and a rear part on the coaxial cable insertion side of the trunk part Provided and locked to the outer cylinder And a length ratio between the body part and the biting part, the body part / the biting part is 2.25 to 2.6, and extends from the biting part to the body part. the body and the bitten portion by a continuous formed cut is made with a resilient, the releaser, and a flange-like operating portion for operating the cylindrical sliding portion and the sliding portion and the The sliding part tip is arranged on the back part which is inside the holding part, and the holding part holds the coaxial cable inserted into the outer cylinder to prevent the coaxial cable from being pulled out. By sliding the sliding part in the box direction , the tip of the sliding part pushes up the holding part from the back part to release the holding operation of the coaxial cable.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the 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, and shows a coaxial cable connection plug. In addition, FIG. 1 is explanatory drawing which showed the principal part in the cross section.
In FIG. 1, 1 is an internal cylinder, 2 is an external cylinder, 3 is a retainer for preventing the attached cable from being pulled out, 4 is a fixing tool for fixing the retainer 3, and 5 is a retainer 3. The releaser for releasing the stopping action, 6 is a nut body which is a connection means for connecting to a connection object such as a receptacle, and 7 is a coaxial cable, and will be described below with the left direction in the figure as the front.
[0014]
The outer cylindrical body 2 is a cylindrical body having an insertion hole 9 through which the distal end portion of the inner cylindrical body 1 is inserted at the distal end, the rear end is opened, the inner cylindrical body 1 is also substantially cylindrical, and the distal end is an outer cylinder. A fitting portion 10 that protrudes forward from the inside of the body 2 and is connected to the nut body 6 is formed. In addition, a disk-shaped protrusion 11 is formed at a substantially central portion of the inner cylinder 1 so as to be engaged with the outer cylinder 2 and integrated with the outer cylinder 2, and the inner insulator of the coaxial cable 7 is formed on the central axis M. A through-hole 13 through which 7a is inserted is formed.
The rear portion from the disk-shaped projection 11 forming portion of the inner cylinder 1 is a sleeve portion inserted between the inner insulator 7a and the protective coating 7b of the coaxial cable 7, more precisely between the inner insulator 7a and the outer conductor 7c. Twelve. The sleeve portion 12 is formed so as to be easily inserted by reducing the thickness of the rear insertion end.
[0015]
The retainer 3 is made of an elastic metal piece, such as stainless steel, and has a cylindrical body 3a at the center as shown in the perspective view of FIG. 2A, and is coaxial with the front of the body 3a. A holding portion 3b for holding the cable 7 is formed in a narrowed manner, and a locking portion 3c for locking to the outer cylinder 2 is formed in a bent shape at the rear portion.
As shown in the end face explanatory view of FIG. 2B, the bite portion 3b is provided with an average angle Q1 having a tip of 20 ° to 40 ° with respect to the direction perpendicular to the central axis M of the outer cylinder 2, and the central axis It is bent in the M direction, and the inside of the tip is formed at an acute angle with an angle Q2 from the central axis M. The two angles Q1 and Q2 are formed to satisfy Q2> Q1.
Further, the tip of the biting portion 3b is arranged so as to be positioned in front of the tip of the sleeve portion 12 of the inner cylinder 1, and the ratio L1 / L2 between the length L1 of the tube portion 3a and the length L2 of the biting portion 3b is set. It is formed as 2.5. In addition, if this ratio L1 / L2 is the range of 1-3.5, the cylinder part 3a has a high removal prevention effect with respect to the tension | pulling of the coaxial cable 7. FIG. In particular, when L1 / L2 is 2.25 to 2.6, it has an excellent anti-removal action and is suitable.
[0016]
A plurality of slit-like cuts 14 are provided from the tip of the biting portion 3b to the trunk portion 3a, and the biting portion 3b and the trunk portion 3a are formed to have elasticity. The biting portion 3b is expanded in diameter by the coaxial cable 7 to be inserted, and the biting portion 3b performs a biting operation so that the biting portion 3b bites around the coaxial cable 7. However, the biting portion 3b has a sharp tip, but does not bite deeply because it makes line contact with the coaxial cable 7.
When the tensile stress of the inserted coaxial cable 7 is applied to the retainer 3 formed in this way, the holding portion 3b is pulled backward, and the stress is concentrated on the central trunk portion 3a. As a result, buckling deformation of the body portion 3a occurs in the stopper 3; for example, when the stopper 3 is made of stainless steel having a thickness of 0.2 mm, a tensile force of 300 N or more is obtained. Therefore, sufficient tensile strength can be obtained. Even in such a state, the end of the biting portion 3b does not bite into the coaxial cable 7, so that the coaxial cable 7 is not cut off from the biting portion.
[0017]
The locking portion 3 c is fixed to the outer cylinder 2 by a fixing tool 4. The outer cylindrical body 2 is provided with a locking groove 15 that locks the fixing tool 4 on the inner surface, and the fixing tool 4 is formed in a ring shape having a diameter that matches the locking groove 15. The gap 4b is provided to give elasticity and can be reduced in diameter. Then, after the diameter is reduced and inserted into the outer cylindrical body 2, the diameter is returned to the locking groove 15 to be properly mounted.
Note that the inner diameter of the outer cylinder 2 behind the locking groove 15 is formed with a diameter matching the locking portion 3c so that the locking device 3 can be inserted. 3 is engaged, and the fixing tool 4 is mounted in the locking groove 15 so that the retainer 3 is held and fixed.
[0018]
The releaser 5 is formed of a cylindrical sliding portion 5a that slides on the coaxial cable 7 and an operation portion 5b that operates the sliding portion 5a. The sliding portion 5a has an inner diameter through which the coaxial cable 7 is inserted, and is inserted and arranged from the rear portion of the outer cylindrical body 2 to the inside of the retainer 3 and has a length that comes into contact with the back portion of the biting portion 3b. In addition, a guide protrusion 4a that engages with the releaser 5 is provided on the inner surface of the fixture 4, and a guide groove 16 that is inserted and engaged with the guide protrusion 4a is formed in the sliding portion 5a. Is prevented from coming off. The guide groove 16 is formed sufficiently longer in the front-rear direction than the guide protrusion 4a to allow the releaser 5 to slide.
Further, the operation portion 5b is formed in a bowl shape at the rear end of the sliding portion 5a, and is disposed at the rear of the outer cylindrical body 2. By pressing the operation portion 5b and sliding it forward, an enlarged view of portion A in FIG. As shown, the tip pushes up the biting portion 3 b, and the biting portion 3 b rises from the coaxial cable 7. As a result, the holding action of the coaxial cable by the stopper 3 is released, that is, the removal preventing action is released.
[0019]
Further, the nut body 6 is internally threaded, and the rear part is fitted to the fitting part 10 of the inner cylinder 1 protruding from the outer cylinder 2, and is rotatably connected to the outer cylinder 2. . In addition, the front-end | tip part is diameter-expanded after the fitting part 10 of the internal cylinder 1 is fitted with the nut body 6. FIG.
[0020]
Next, the procedure for assembling the plug and attaching it to the coaxial cable will be described. In assembling the plug, first, the inner cylinder 1 is inserted and connected to the outer cylinder 2 from the rear. At this time, the inner cylinder 1 is fixed and integrated by press fitting or the like. In the process, the front end fitting portion 10 of the inner cylinder 1 is protruded from the insertion hole 9 to the front of the outer cylinder 2, the nut body 6 is fitted to the protruding fitting portion 10, and the nut body is inserted from the front. When the fitting portion 9 is enlarged in diameter, the nut body 6 is rotatably connected to the outer cylindrical body 2.
[0021]
Thereafter, the stopper 3 is inserted into the outer cylinder 2 to engage the locking portion 3 c with the locking groove 15, and the fixing tool 4 is attached to the locking groove 15 to lock and fix the stopper 3. To do. However, the fixture 4 is mounted in a state where the releaser 5 is assembled, the releaser 5 is inserted into the fixture 4, the guide protrusion 4 a of the fixture 4 is engaged with the guide groove 16 of the releaser 5, and both are connected. And inserted into the outer cylinder 2. This insertion operation can be easily performed by reducing the diameter of the fixture 4 and thus the plug is formed.
[0022]
Next, installation operation of the coaxial cable is started. The coaxial cable 7 is first processed into a predetermined shape at the end where the plug is attached. The inner insulator 7a and the protective coating 7b are removed 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 coaxial cable 7 is inserted to a predetermined position where the protective coating 7b comes into contact with the disk-like 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 reliably electrically connected to the outer conductor 7c, and at the same time, the protective coating 7b is expanded in diameter, As shown in FIG. 3, the biting portion 3 b arranged at a position overlapping the sleeve portion 12 acts to securely hold the coaxial cable 7. Furthermore, the tip of the center conductor 7d projects to the tip of the nut body 6, and the center conductor 7d of the coaxial cable 7 is disposed on the center axis of the nut body 6 to obtain the center conductor of the connecting 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 firmly attached. Nevertheless, if the releaser is operated, the removal preventing action by the retainer can be released, so that work such as cable replacement can be easily performed.
Furthermore, the connector mounting is completed by a simple mounting operation in which a cable mounting means having a retainer is formed in the external cylinder and a coaxial cable whose end is processed into a predetermined shape is inserted into the external cylinder. The connector can be easily attached.
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 connecting means as a plug.
[0024]
FIG. 5 shows another example of the stopper. The difference from the retainer 3 shown in FIG. 2 will be described. Between the notches 14 provided from the tip of the biting portion 18b to the cylindrical portion 18a, the end of the locking portion 18c extends from the cylindrical portion 18a. Thus, a second cut 19 is formed.
In this way, by forming a cut also from the rear, it is possible to give elasticity to the locking portion in addition to the biting portion and the cylindrical portion, and the insertion locking operation of the retaining member to the external cylindrical body can be performed. It becomes easy to do.
2 and FIG. 5, the retainers 3 and 18 are provided with four incisions 14 in the drawing. However, if there are at least three incisions 14, the body portions 3a and 18a and the biting portions 3b and 18b are elastic. It can be generated, and cuts may be provided at five or more locations.
[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 the main part of the coaxial cable connection receptacle in cross section. The difference from FIG. 1 is that the connection means is a bolt body 21 with a male thread. In addition, the same code | symbol is provided to the structural member similar to the said FIG.
[0026]
The bolt body 21 has a communication hole 22 penetrating from the sleeve portion 12 in the outer cylindrical body 2, and the central conductor of the coaxial cable 7 attached to the connector is connected to the communication hole 22 in the communication hole 22. A connecting metal fitting 23 is arranged. The connection fitting 23 is disposed in a resin-made holding cylinder 24 inserted into the communication hole 22, and the holding cylinder 24 has insertion holes 24 a for inserting a center conductor on the front surface and the back surface, respectively.
Further, the inner cylinder 1 a has a sleeve portion 12 and a disk-shaped protrusion 11, and the front surface side of the disk-shaped protrusion 11 is formed flat, and is fixedly integrated with the inner portion of the outer cylinder 2.
[0027]
In order to assemble the receptacle, the holding cylinder 24 to which the connecting fitting 23 is first assembled 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-fitted from the rear. After that, as in the first embodiment, assembly is performed by assembling the stopper 3, the fixture 4, the releaser 5, and the like.
The coaxial cable is attached in the same manner as in the first embodiment, and the coaxial cable 7 whose end is processed into a predetermined shape is inserted into the outer cylindrical body 2 to be securely attached, and tensile stress acts. There is no such thing as missing. The central conductor 7 d of the inserted coaxial cable 7 is inserted into the holding cylinder 24 and is sandwiched between the connecting fittings 23.
By forming the connector as a receptacle in this manner, for example, the plug as in the first embodiment can be connected, and the coaxial cables can be easily connected.
[0028]
In the above-described embodiment, the outer cylindrical body has a cylindrical shape, but other shapes, for example, a hexagonal prism shape may be used. Further, the connecting means may have a shape other than the plug or the receptacle structure, and if the cable mounting means in the external cylinder is configured as described above, the removal action can be exhibited well.
[0029]
FIG. 7 shows an electronic device storage box (hereinafter simply referred to as a box) according to the present invention. FIG. 7 is a cross-sectional explanatory view of the box, 26 is a box, 27 is a circuit board assembled in the box, and 28 is a coaxial cable mounting means. In addition, the same code | symbol is provided to the structural member similar to the said FIG.
[0030]
The box 26 is composed of a main body 26a and a cover plate 26b, both of which are made of metal, and the internal space is shielded from the outside and sealed. And the cylindrical outer cylinder 2 protrudes from the side of the main body 26a, and the outer 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 cylinder 2b. The inner cylinder having the sleeve portion 12 fixed to the outer cylinder, the retainer 3, the fixing tool 4, and the releaser. And 5.
On the other hand, a connecting hole 29 is formed at the end of the outer cylindrical body 2b inside the box, through which the center conductor 7d of the connected coaxial cable 7 is inserted into the internal space of the box 26, and is connected to the center conductor 7d. Are connected to the circuit board 27 arranged in the box 26 to form a connecting means for the coaxial cable assembled and inserted in accordance with the position of the connecting hole 29.
[0031]
In this way, the same coaxial cable mounting means as the above connector can be provided in the box, and the mounted coaxial cable does not come out even if tensile stress is applied by the action of the stopper, and is robust. Can be installed. Nevertheless, if the releaser is operated, the removal preventing action by the retainer can be released, so that work such as cable replacement can be easily performed. Moreover, since the end of the coaxial cable is processed into a predetermined shape and inserted into the outer cylinder, the mounting on the box is completed, so that the coaxial cable can be easily mounted.
Furthermore, the releaser has a simple structure and shape, and the configuration of the coaxial cable mounting means is not complicated.
[0032]
In this embodiment of the electronic device storage box, the external cylinder 2 protrudes outward from the box 26. However, the coaxial cable mounting means is connected to the external space by protruding into the box internal space in the opposite direction. You may form in a cylinder. By doing so, the internal space is narrowed, but the appearance of the box is improved. Further, although the connecting means is assembled on the circuit board, the connecting metal fitting 30 may be provided on the main body 26a side.
In addition, in any of the embodiments, a releaser is provided in order to provide a release function. However, if the releaser is used in a portion where the release function is not required, it is naturally not necessary to provide a releaser, and the attached coaxial cable is difficult to come off. A robust connector can be configured at low cost.
[0033]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, the coaxial cable attached to the connector does not come off even when a tensile stress is applied by the action of the stopper, and can be attached firmly. . Nevertheless, if the releaser is operated, the removal preventing action by the retainer can be released, so that work such as cable replacement can be easily performed. Further, the connector mounting is completed simply by processing the end portion of the coaxial cable into a predetermined shape and inserting it into the external cylinder, so that the connector mounting is easy.
Furthermore, the releaser has a simple structure and shape, and the configuration of the connector is not complicated. Further, it can be connected to a receptacle terminal of an electronic device or the like.
[0034]
According to the second aspect of the present invention, the coaxial cable attached to the connector does not come off even when a tensile stress is applied by the action of the stopper, and can be attached firmly. Nevertheless, if the releaser is operated, the removal preventing action by the retainer can be released, so that work such as cable replacement can be easily performed. Further, the connector mounting is completed simply by processing the end portion of the coaxial cable into a predetermined shape and inserting it into the external cylinder, so that the connector mounting is easy.
Furthermore, the releaser has a simple structure and shape, and the configuration of the connector is not complicated. And it can connect to a plug terminal and can carry out the connection of coaxial cables easily.
[0035]
According to the invention of claim 3 , the coaxial cable attached to the box body does not come off even when a tensile stress is applied by the action of the stopper, and can be attached firmly. Nevertheless, if the releaser is operated, the removal preventing action by the retainer can be released, so that work such as cable replacement can be easily performed. Moreover, since the end of the coaxial cable is processed into a predetermined shape and inserted into the outer cylinder, the mounting on the box is completed, so that the coaxial cable can be easily mounted.
[0036]
Furthermore, the releaser has a simple structure and shape, and the configuration of the coaxial cable mounting means is not 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 partial cross section.
2A and 2B show the retainer of FIG. 1, in which FIG. 2A is a perspective view, and FIG.
FIG. 3 is an enlarged view of a portion A in FIG. 1 and shows a state in which the retainer is deformed by the action of a sleeve portion.
4 is an enlarged view of a part A in FIG. 1, and is an explanatory view of the action of the releaser. FIG.
FIG. 5 is a perspective view showing another example of a retainer.
FIG. 6 is a side view of the coaxial cable connector according to the second embodiment of the coaxial cable connector according to the present invention, partially shown in cross section.
FIG. 7 is a cross-sectional explanatory view showing an example of an embodiment of an electronic device storage box according to the present invention.
[Explanation of symbols]
1, 1a, 1b ··· Internal cylinder, 2 · · External cylinder, 3 · · Stopper, 3a · · Body, 3b · · Clamping portion, 3c · · Locking portion, · · · Fixing device 4a ··· Guide protrusions 5 · · Releaser 5a · · Sliding part 5b · · Operation part 6 · · Nut body 7 · · Coaxial cable 9 · · Insertion hole 10 · · Fitting part, 11 .. Disc-like projection, 12 .. Sleeve part, 14 .. Incision, 18. 22 .. Communication hole, 23 .. Connection bracket, 26 .. Box body, 27 .. Circuit board, 28 .. Coaxial cable mounting means, 30.

Claims

While that having a cable attachment means for attaching the coaxial cable to the rear, has a nut internally threaded is turned off to connect to the connection target of the coaxial cable to the front,
The cable mounting means is formed in a substantially cylindrical outer cylinder into which the coaxial cable is inserted, is formed thin toward the rear end, and is inserted between the inner insulator of the coaxial cable and the outer conductor. A sleeve portion, a retaining device that prevents the coaxial cable from being pulled out, and a releaser that releases the coaxial cable from being prevented from being pulled out by the retaining device,
The front surface of the outer cylindrical body has an insertion hole through which the inner insulator portion including the central conductor of the attached coaxial cable is inserted, and a fitting portion that rotatably fits and holds the nut body around the insertion hole. A coaxial cable connector formed by projecting a central conductor of a coaxial cable that is projectingly mounted and projecting from the insertion hole and disposed on a central axis of the nut body,
The sleeve part and the fitting part are formed integrally with an inner cylinder having a disk-like protrusion fitted and held in the outer cylinder,
Said retaining member, said a cylindrical body portion which have a external cylinder and the same central axis, bitten portion formed Subomi the front of the barrel to bitten operate in line contact around a coaxial cable And a flange-like locking portion that is provided at the rear portion of the body portion and engages with the external cylinder, and the length ratio between the body portion and the biting portion is 2 .25 to 2.6, and the torso and the biting part are elastically formed by a cut formed continuously from the biting part to the torso,
The releaser, the sliding tip and a flange-like operating portion for operating the cylindrical sliding portion and the sliding portion is disposed in back of the bitten portion,
With respect to the coaxial cable inserted into the outer cylinder, the biting portion bites to prevent the coaxial cable from being pulled out and slides the sliding portion forward so that the tip of the sliding portion is A coaxial cable connector, wherein the holding portion of the coaxial cable is released by pushing up the holding portion from behind.

While having a cable mounting means for mounting a coaxial cable at the rear, it has a bolt body with a male thread cut to connect to the connection target of the coaxial cable at the front,
The cable mounting means is formed in a substantially cylindrical outer cylinder into which the coaxial cable is inserted, is formed thin toward the rear end, and is inserted between the inner insulator of the coaxial cable and the outer conductor. A sleeve portion, a retaining device that prevents the coaxial cable from being pulled out, and a releaser that releases the coaxial cable from being prevented from being pulled out by the retaining device,
The bolt body is integrally formed with the outer cylinder body, and has a communication hole formed through the sleeve portion in the outer cylinder body on the central axis of the bolt body, and the communication hole inserts a central conductor to be connected. And is a hole for inserting the central conductor of the coaxial cable inserted and attached to the outer cylinder, and is attached to the connection-target central conductor and the outer cylinder by a coupling fitting disposed inside the communication hole. A coaxial cable connector connected to a central conductor of a coaxial cable,
The sleeve portion is integrally formed with an internal cylinder having a disk-like projection fitted and held in the external cylinder,
The retainer includes a cylindrical trunk having the same central axis as the outer cylinder, and a clamping portion formed in a narrowed front portion of the trunk so as to perform a clamping operation in line contact with the periphery of the coaxial cable. And a flange-like locking portion provided at the rear portion of the body portion and engaged with the external cylinder, the ratio of the length of the body portion to the biting portion; 25 to 2.6, and the torso and the biting part have elasticity by the incision formed continuously from the biting part to the torso,
The releaser has a cylindrical sliding part and a hook-like operation part for operating the sliding part, and the tip of the sliding part is arranged on the back part of the biting part,
With respect to the coaxial cable inserted into the outer cylindrical body, the biting portion bites the coaxial cable to prevent the coaxial cable from being pulled out, and the sliding portion slides forward so that the tip of the sliding portion becomes the bite. A connector for a coaxial cable, wherein the holding portion is pushed up from behind to release the holding operation of the coaxial cable.

An electronic device storage box having a coaxial cable mounting means for mounting a coaxial cable from the outside,
The coaxial cable mounting means is formed by projecting a substantially cylindrical outer cylindrical body into which a coaxial cable is inserted into a box, and is formed thinly toward the tip end where the coaxial cable is inserted. A sleeve portion inserted between the inner insulator and the outer conductor, a retainer for preventing the coaxial cable from being pulled out, and a releaser for releasing the removal of the coaxial cable by the retainer. ,
Said retaining member includes a cylindrical body portion which have a said external cylinder and the same central axis, Subomi the front of the torso portion comprising a box body side to bitten operate in line contact around a coaxial cable The formed biting portion and a flange-shaped locking portion that is provided on the rear portion of the trunk portion on the coaxial cable insertion side and is locked to the outer cylinder, and the length of the trunk portion and the biting portion The torso / clamping part is 2.25 to 2.6, and the torso and the holding part have elasticity due to the incision formed continuously from the torsion part to the torso part. And
The releaser, and a flange-like operating portion for operating the cylindrical sliding portion and the sliding portion is disposed the slide tip on the back of the inside of the bitten portion,
With respect to the coaxial cable inserted into the outer cylinder, the biting portion bites the coaxial cable to prevent the coaxial cable from being pulled out, and the sliding portion slides in the box direction so that the tip of the sliding portion Pushes up the biting part from the back to release the biting operation of the coaxial cable.