JP4132399B2

JP4132399B2 - Antenna mounting structure for radio

Info

Publication number: JP4132399B2
Application number: JP13832999A
Authority: JP
Inventors: 政人安斎; 健一岩井
Original assignee: Yokowo Co Ltd
Current assignee: Yokowo Co Ltd
Priority date: 1999-05-19
Filing date: 1999-05-19
Publication date: 2008-08-13
Anticipated expiration: 2019-05-19
Also published as: JP2000332519A

Description

【０００１】
【発明の属する技術分野】
本発明は、無線機筐体に簡単にアンテナを取り付けることができる無線機用アンテナ取付構造に関するものである。
【０００２】
【従来の技術】
無線機筐体に簡単に取り付けることのできる従来のアンテナの一例の構造を図９に示す。図９は、従来のアンテナを示し、（ａ）は正面図であり、（ｂ）は底面拡大図である。図９において、ヘリカル状のアンテナエレメント１０の基端側の取付部に、樹脂材からなり軸方向と直交する断面の外形が円形な筒体１２が、アンテナエレメント１０の軸方向に設けられる。この筒体１２の筒体先端面より軸方向に２本のスリット２２、２２が設けられ、筒体先端側を遊端とする弾性舌片１４が形成される。そして、この弾性舌片１４の遊端部に、外側に突起した係合突部１６が設けられる。また、筒体１２の外面に軸方向に長い１本のリブ１８が設けられる。さらに、アンテナエレメント１０の基端部に適宜に電気的接続された給電バネ２０が、筒体１２の筒体先端より突出して設けられる。
【０００３】
かかる構成のアンテナに対して、無線機筐体は図示されていないが、無線機筐体に筒体１２の軸方向と直交する断面の外形に応じた取付孔が貫通穿設される。そして、この取付孔に筒体１２を弾性舌片１４を弾性変形させて嵌合挿入すると、係合突部１６が無線機筐体の内壁面などに係合して引き抜き方向の移動が阻止される。また、給電バネ２０が無線機筐体内に適宜に配設された給電端子に弾接して電気的接続がなされる。したがって、無線機筐体の取付孔にアンテナの筒体１２を挿入することで、簡単にアンテナを固定できるとともにアンテナの電気的接続が適宜になされる。なお、リブ１８により、取付孔に挿入し得る筒体１２の姿勢が特定されるとともに、取付孔内で軸回りに筒体１２の回転が阻止される。
【０００４】
【発明が解決しようとする課題】
上述のごとき従来のアンテナの構造にあっては、その取り付けが簡単であるが、筒体１２の筒体先端部の強度が不十分であって破損され易いという不具合があった。これは、筒体先端面よりスリット２２、２２が設けられて弾性舌片１４が形成されているので、筒体１２の先端部の断面形状は円の一部が切り欠かれたＣ字状であることに起因している。そこで、無線機筐体にアンテナを取り付ける際に、取付孔に対して筒体１２が少しずれて挿入されると、筒体１２の筒体先端部が弾性変形して弾性舌片１４に変形し得ない方向に過大な力が作用した場合に破損されるというものであった。また、取り付け後にあっても、無線機筐体から突出して取り付けられているアンテナに強い曲げ方向の力が作用すると、やはり筒体１２の先端部が弾性変形して弾性舌片１４が破損される虞がある。
【０００５】
本発明は、上述の従来技術を改善するためになされたもので、アンテナの取付部の筒体の先端部の強度が小さくならず、しかも従来と同様に無線機筐体にアンテナを簡単に取り付けることのできる無線機用アンテナ取付構造を提供することを目的とする。
【０００６】
【課題を解決するための手段】
かかる目的を達成するために、本発明の無線機用アンテナ取付構造は、無線機筐体の外方に配設されるアンテナの取付部に、樹脂材からなる筒体を設け、この筒体の外面に筒体先端から軸方向に長い平面を形成し、前記筒体の筒体先端部が閉じた環状であるように、前記筒体の中間部に前記平面位置で筒体先端側を遊端としその外側の面を平面としまた遊端部に外側に突起した係合突部を有する弾性舌片を設け、前記無線機筐体に前記筒体の断面の外形に応じた孔形状の取付孔を貫通穿設し、この取付孔に前記筒体を前記弾性舌片を弾性変形させて嵌合挿入すると、前記弾性舌片の外側の前記平面が前記取付孔の内周面の平面に弾接するとともに前記係合突部が係合して引き抜き方向への移動が阻止されて、前記アンテナが前記無線機筐体に取り付けられるように構成されている。
【０００７】
また、無線機筐体の外方に配設されるアンテナの取付部に、樹脂材からなる筒体を設け、この筒体の外面に筒体先端から軸方向に長い平面を形成し、前記筒体の筒体先端部が閉じた環状であるように、前記筒体の中間部に前記平面位置で筒体先端側を遊端としその外側の面を平面としまた遊端部に外側に突起した係合突部を有する弾性舌片を設け、さらに前記筒体の外面で前記平面から軸回りにずれた位置に軸方向に長いリブを設け、前記無線機筐体に前記筒体の断面の外形に応じた孔形状の取付孔を貫通穿設し、この取付孔に前記筒体を前記弾性舌片を弾性変形させて嵌合挿入すると、前記弾性舌片の外側の前記平面が前記取付孔の内周面の平面に弾接するとともに前記係合突部が係合して引き抜き方向への移動が阻止され、しかも前記リブにより前記取付孔内で軸回りに前記筒体が回転しないようにして、前記アンテナが前記無線機筐体に取り付けられるように構成しても良い。
【０００８】
そして、無線機筐体の外方に配設されるアンテナの取付部に、樹脂材からなる筒体を設け、この筒体を断面の外形をＤ字状としその外面に筒体先端から軸方向に長い平面を形成し、前記筒体の筒体先端部が閉じた環状であるように、前記筒体の中間部に前記平面位置で筒体先端側を遊端としその外側の面を平面としまた遊端部に外側に突起した係合突部を有する弾性舌片を設け、さらに前記筒体の外面で前記平面から軸回りに両側にずれた位置で軸方向に長いリブを２本設け、前記無線機筐体に前記筒体の断面の外形に応じた孔形状の取付孔を貫通穿設し、この取付孔に前記筒体を前記弾性舌片を弾性変形させて嵌合挿入すると、前記弾性舌片の外側の前記平面が前記取付孔の内周面の平面に弾接するとともに前記係合突部が係合して引き抜き方向への移動が阻止され、しかも前記リブにより前記取付孔内で軸回りに前記筒体が回転しないようにして、前記アンテナが前記無線機筐体に取り付けられるように構成しても良い。
【０００９】
さらに、無線機筐体の外方に配設されるアンテナの取付部に、樹脂材からなり断面の外形が円形の筒体を設け、前記筒体の筒体先端部が閉じた環状であるように、前記筒体の中間部に筒体先端側を遊端としその遊端部に外側に突起した係合突部を有する弾性舌片を設け、さらに前記筒体の外面に軸方向に長いリブを設け、前記無線機筐体に前記筒体の断面の外形に応じた孔形状の取付孔を貫通穿設し、この取付孔に前記筒体を前記弾性舌片を弾性変形させて嵌合挿入すると、前記弾性舌片が前記取付孔の内周面に弾接するとともに前記係合突部が係合して引き抜き方向への移動が阻止され、しかも前記リブにより前記取付孔内で軸回りに前記筒体が回転しないようにして、前記アンテナが前記無線機筐体に取り付けられるように構成しても良い。
【００１０】
そしてまた、アンテナエレメントの基端に電気的接続された給電バネを前記筒体の筒体先端より突出して設け、前記取付孔に前記筒体を嵌合挿入すると、前記給電バネが前記無線機筐体内に配設された給電端子に弾接して電気的接続するように構成することも可能である。
【００１１】
さらにまた、アンテナエレメントを形成する線材の一端部を前記筒体の筒体先端より突出して設け、前記取付孔に前記筒体を嵌合挿入すると、前記線材の一端部が前記無線機筐体内に配設された給電端子に弾接して電気的接続するように構成することも可能である。
【００１２】
そしてさらに、帯状導体をヘリカル状としてアンテナエレメントを形成するとともに、この帯状導体の一端部を前記筒体の筒体先端より突出して設け、前記取付孔に前記筒体を嵌合挿入すると、前記帯状導体の一端部が前記無線機筐体内に配設された給電端子に弾接して電気的接続するように構成することも可能である。
【００１３】
【発明の実施の形態】
以下、本発明の第１実施例を図１ないし図３を参照して説明する。図１は、本発明の無線機用アンテナ取付構造の第１実施例のアンテナを示し、（ａ）は正面図であり、（ｂ）は側面図であり、（ｃ）はアンテナを無線機筐体に取り付けた図である。図２は、図１（ｃ）のＡ−Ａ断面矢視拡大図である。図３は、図１（ｃ）の底面拡大図である。図１ないし図３において、図９と同じまたは均等な部材には同じ符号を付けて重複する説明を省略する。
【００１４】
図において、アンテナエレメント１０の基端は、導電金具３６に固定されて電気的接続され、さらにこの導電金具３６に給電バネ２０が固定されて電気的接続される。そして、導電金具３６に樹脂材からなる筒体１２が圧入やインサート成形による一体成形などにより適宜に固定される。この筒体１２のアンテナエレメント１０の基端側の外面には、雄ネジが刻設され、アンテナエレメント１０を覆うように樹脂材からなるカバー２４が配設されて螺合固定される。さらに、筒体１２の外面には、筒体先端より軸方向に長い平面２６が形成され、筒体１２の軸方向と直交する断面の外形が略Ｄ字状とされる。そして、筒体１２の中間部で平面２６の位置に、弾性舌片１４が設けられる。この弾性舌片１４は、筒体先端側を遊端とし、その外側の面が平面とされ、さらに遊端部に外側に突起した係合突部１６が形成される。なお、弾性舌片１４を設けるためのスリット２８は、コ字状であって、筒体先端に達していない。また、筒体１２の外面に、平面２６から軸回りに両側に９０度ずれて２本のリブ１８、１８が軸方向に長くそれぞれに設けられる。
【００１５】
また、無線機筐体３０には、筒体１２の軸方向と直交する断面の外形に応じて、略Ｄ字状であるとともにリブ１８、１８に対応する溝が設けられた取付孔３２が貫通穿設される。そして、この取付孔３２に、アンテナの筒体１２が弾性舌片１４を弾性変形させながら嵌合挿入される。挿入された状態では、弾性舌片１４が取付孔３２の内周壁に弾接するとともに、係合突部１６が無線機筐体３０の内壁面に係合して引き抜き方向への移動が阻止される。また、給電バネ２０が無線機筐体３０内に配設される給電端子３４に弾接して電気的接続がなされる。なお、取付孔３２に対して、筒体１２はその断面形状およびリブ１８、１８により、嵌合挿入できる姿勢が特定される。
【００１６】
かかる構成の第１実施例において、筒体１２の筒体先端部は閉じた環状であり、強度が小さくならず、従来のものに比較して強度が大きい。そこで、アンテナを取り付ける際に、弾性舌片１４が破損されにくい。また、取り付け後においても、アンテナが横方向の力を受けても破損されにくい。さらに、取り付け状態で、弾性舌片１４の外側を向いた平面が、取付孔３２の断面Ｄ字状を形成する内周面の平面に弾接し、接触面が広い分だけ強固に固定がなされる。また、弾性舌片１４の平面とその両側に９０度ずれた２本のリブ１８、１８の少なくとも３箇所で、筒体１２は取付孔３２に支持固定されており、この点からも安定した強固な固定が得られる。しかも、２本のリブ１８、１８は、軸回りにほぼ１８０度ずれて配設されており、リブ１８、１８の間の距離が最も長くとれ、アンテナの軸回りの回転も確実に阻止される。
【００１７】
次に、本発明の第２実施例を図４を参照して説明する。図４は、本発明の無線機用アンテナ取付構造の第２実施例の縦断面図である。図４において、図１ないし図３および図９と同じまたは均等な部材には、同じ符号を付けて重複する説明を省略する。
【００１８】
図４の第２実施例にあっては、アンテナエレメント１０を形成する線材をそのアンテナ基端部近くでつぶして変形させ、さらに基端側に長く伸設する。そして、つぶして変形された基端部近くに、樹脂材からなるスペーサ４０がインサート成形などにより一体成形されて固定される。さらに、この一体化されたアンテナエレメント１０とスペーサ４０が、カバー２４と筒体１２が樹脂材により一体成形された部材内に挿入されて適宜に固定される。アンテナエレメント１０から伸設された線材の一端部は、筒体１２の筒体先端より突出される。筒体１２には、第１実施例と同様に弾性舌片１４などが設けられている。さらに、筒体１２の外面に、軸回りに数本の環状リブ４２、４２が設けられ、この環状リブ４２、４２の外形寸法は、取付孔３２の内径寸法と小さな交差で形成される。
【００１９】
かかる構成で、筒体１２にＯリングなどの環状弾性体４４を嵌挿して、無線機筐体３０の取付孔３２に筒体１２が嵌合挿入される。ここで、筒体１２は環状リブ４２、４２が押し潰されるように取付孔３２に圧入される。しかも、取り付け状態では、環状弾性体４４が軸方向に圧縮されて弾性変形される。すると、環状リブ４２、４２により筒体１２は取付孔３２内で横方向の遊びが無く、また環状弾性体４４の弾力により筒体１２は引き抜き方向に弾性付勢されているが、係合突部１６により係合されて引き抜き方向への移動が阻止されているので軸方向の遊びもない。よって、無線機筐体３０に対してアンテナは、姿勢がぐらつくことなしに確実に固定される。
【００２０】
また、本発明の第３実施例を図５を参照して説明する。図５は、本発明の無線機用アンテナ取付構造の第３実施例の縦断面図である。図５において、図１ないし図４および図９と同じまたは均等な部材には、同じ符号を付けて重複する説明を省略する。
【００２１】
図５の第３実施例にあっては、アンテナエレメント１０を形成する線材をそのアンテナ基端部近くで例えばＳ字状に屈曲させ、さらに基端側に長く伸設する。そして、このＳ字状部分に、樹脂材からなるスペーサ４０が一体成形により固定される。さらに、第２実施例と同様に、この一体化されたアンテナエレメント１０とスペーサ４０が、カバー２４と筒体１２が樹脂材で一体成形された部材内に挿入されて適宜に固定される。アンテナエレメント１０から伸設した線材の一端部は、筒体１２の筒体先端より突出される。また、筒体１２には、第１実施例と同様に弾性舌片１４などが設けられている。さらに、弾性舌片１４は、遊端側ほど肉が厚く形成されて遊端側ほどその弾力が強くされる。また、係合突部１６の無線機筐体３０の内壁面などに係合する面が少し傾斜されている。
【００２２】
かかる構成で、無線機筐体３０の取付孔３２に筒体１２を取り付けた状態では、無線機筐体３０の内壁面に係合突部１６の傾斜した面が弾接していて、楔効果により、筒体１２は軸方向で挿入方向に弾性付勢され、筒体１２に軸方向の遊びが生じない。また、弾性舌片１４は遊端側の弾力がより強くなり、やはり取付孔３２内で筒体１２に横方向の遊びが生ずることもない。よって、第２実施例と同様に、無線機筐体３０に対してアンテナは、姿勢がぐらつくことなしに確実に固定される。
【００２３】
さらに、本発明の第４実施例を図６を参照して説明する。図６は、本発明の無線機用アンテナ取付構造の第４実施例の縦断面図である。図６において、図１ないし図５および図９と同じまたは均等な部材には、同じ符号を付けて重複する説明を省略する。
【００２４】
図６の第４実施例にあっては、図４の第２実施例におけるアンテナエレメント１０を線材で形成するのに代えて、アンテナエレメント１０が帯状導体でヘリカル状とされてヘリカルアンテナに形成され、その一端部が筒体１２の筒体先端より突出される。しかも、アンテナエレメント１０のヘリカル状は、帯状導体の厚さ方向がヘリカル状の軸方向で、幅方向がヘリカル状の半径方向となるように形成される。
【００２５】
かかる構成で、帯状導体の厚さ方向がヘリカル状の軸方向とされているので、狭いピッチでヘリカル状に形成できる。また、帯状導体の幅と厚さを適宜に設定することで、図４の第２実施例よりも、筒体１２の筒体先端より突出した一端部が無線機筐体３０内の給電端子３４により強い弾力で弾接でき、それだけ確実な電気的接続が得られる。
【００２６】
さらにまた、本発明の第５実施例を図７を参照して説明する。図７は、本発明の無線機用アンテナ取付構造の第５実施例の縦断面図である。図７において、図１ないし図６および図９と同じまたは均等な部材には、同じ符号を付けて重複する説明を省略する。
【００２７】
図７の第５実施例にあっては、図５の第３実施例の線材に代えて、アンテナエレメント１０が帯状導体でヘリカル状とされてヘリカルアンテナに形成され、その一端部が筒体１２の筒体先端より突出される。しかも、アンテナエレメント１０のヘリカル状は、帯状導体の幅方向がヘリカル状の軸方向で、厚さ方向がヘリカル状の半径方向となるように形成される。
【００２８】
かかる構成で、帯状導体の幅方向がヘリカル状の軸方向とされているので、軸方向にその形状が変化されにくく、それだけヘリカル状のピッチが変動することがなく、アンテナ特性が安定している。しかも、帯状導体の厚さ方向がヘリカル状の半径方向とされるので、巻き径を小さくすることもできる。また、図６の第４実施例と同様に、帯状導体の厚さと幅を適宜に設定することで、図５の第３実施例よりも、筒体１２の筒体先端より突出した一端部が無線機筐体３０内の給電端子３４により強い弾力で弾接でき、それだけ確実な電気的接続が得られる。
【００２９】
そしてさらに、本発明の第６実施例を図８を参照して説明する。図８は、本発明の無線機用アンテナ取付構造の第６実施例を示し、（ａ）はアンテナの正面図であり、（ｂ）は無線機筐体に取り付けた状態で（ａ）のＢ−Ｂ断面矢視拡大図である。図８において、図１ないし図７および図９と同じまたは均等な部材には、同じ符号を付けて重複する説明を省略する。
【００３０】
図８の第６実施例にあっては、筒体１２はその軸方向と直交する断面の外形が略円形であり、その中間部に弾性舌片１４が設けられる。この弾性舌片１４は、筒体先端側を遊端とし、その遊端部に外側に突起した係合突部１６が形成される。そして、弾性舌片１４の外側を向いた面は筒体１２と同様に断面外形が円弧状とされる。なお、弾性舌片１４を設けるためのスリット２８は、コ字状であって、筒体先端に達していない。また、筒体１２の外面に１本のリブ１８が軸方向に長く設けられる。そして、無線機筐体３０には、筒体１２の断面の外形に応じた形状の取付孔３２が穿設される。
【００３１】
かかる構成の第６実施例にあっては、筒体１２の先端部は閉じた環状であって、他の実施例と同様に、筒体１２の先端部の強度が小さくならず、取り付けの際などに破損されることがない。
【００３２】
なお、上記実施例において、アンテナは、無線機筐体３０に固定されるヘリカル状のアンテナエレメント１０で構成されているが、これに限られず、引き出し収納自在なホイップアンテナエレメントであっても良く、また固定されたヘリカルアンテナエレメントと引き出し収納自在なホイップアンテナエレメントで構成されても良く、さらには引き出し収納自在なホイップアンテナエレメントとその先端に固定されたヘリカルアンテナエレメントで構成されたものなどであっても良い。また、筒体１２の断面の外形は、上記実施例のごとく円やＤ字状に限られず、小判形や四角形や六角形などであっても良い。そして、弾性舌片１４は、１本に限られず、複数本設けられても良い。そしてさらに、筒体１２の外面に軸方向に長く設けるリブ１８、１８は、筒体１２の断面の外形により軸回りの回転が充分に阻止されるならば設けなくても良い。また、リブ１８、１８は、１本または２本に限られず、３本以上であっても良く、その位置も本数も上記実施例に限られるものでない。
【００３３】
【発明の効果】
以上説明したように、本発明の無線機用アンテナ取付構造は構成されているので、以下のごとき格別な効果を奏する。
【００３４】
請求項１記載の無線機用アンテナ取付構造にあっては、筒体の先端部が閉じた環状であり、筒体の先端部の強度が小さくなることがなく、取り付けの際などの破損されにくい。また、取付孔と弾性舌片が平面で弾接するので、広い面積で接触していて、安定した固定がなされる。しかも、筒体に設けた平面により、軸回りの回転が阻止される。
【００３５】
請求項２記載の無線機用アンテナ取付構造にあっては、請求項１と同様な効果が得られるとともに、軸方向に長いリブにより、筒体が取付孔内で軸回りに回転するのがより確実に阻止される。
【００３６】
請求項３記載の無線機用アンテナ取付構造にあっては、請求項１と同様な効果が得られるとともに、筒体の平面に対して軸回りに両側にずらして設けられた２本のリブにより、筒体は取付孔に対して少なくとも３箇所で弾接支持され、安定した姿勢で固定がなされる。
【００３７】
請求項４記載の無線機用アンテナ取付構造にあっては、弾性舌片を筒体の中間部に設けたので、筒体の先端部は閉じた環状であり、その強度が小さくなるようなことがなく、取り付けの際などに、従来の構造に比較して破損されにくい。
【００３８】
請求項５記載の無線機用アンテナ取付構造にあっては、無線機筐体の取付孔にアンテナの取付部の筒体を嵌合挿入するだけで、アンテナが固定されるのと同時に電気的接続がなされ、その取付作業が極めて簡単である。
【００３９】
請求項６記載の無線機用アンテナ取付構造にあっては、アンテナエレメントを形成する線材の一端部を筒体の先端から突出するようにして、取り付けた状態でこの線材の一端部が無線機筐体内に配設された給電端子に弾接して電気的接続されるようにしたので、アンテナの給電構造が単純であり確実に電気的導通が得られるとともに、部品点数が少なく量産に好適である。
【００４０】
請求項７記載の無線機用アンテナ取付構造にあっては、アンテナエレメントを帯状導体でヘリカル状に形成するので、厚さ方向をヘリカル状の軸方向とすれば狭いピッチのヘリカルアンテナを形成でき、また幅方向をヘリカル状の軸方向とするならばピッチが変形しにくくしかも巻き径の小さなヘリカルアンテナを形成できる。しかも、帯状導体の一端部を筒体の先端から突出するようにして、取り付けた状態でこの帯状導体の一端部が無線機筐体内に配設された給電端子に弾接して電気的接続されるようにしたので、帯状導体の厚さと幅を適宜に設定することで、より強い弾力で弾接して確実な電気的導通が得られる。
【図面の簡単な説明】
【図１】本発明の無線機用アンテナ取付構造の第１実施例のアンテナを示し、（ａ）は正面図であり、（ｂ）は側面図であり、（ｃ）はアンテナを無線機筐体に取り付けた図である。
【図２】図１（ｃ）のＡ−Ａ断面矢視拡大図である。
【図３】図１（ｃ）の底面拡大図である。
【図４】本発明の無線機用アンテナ取付構造の第２実施例の縦断面図である。
【図５】本発明の無線機用アンテナ取付構造の第３実施例の縦断面図である。
【図６】本発明の無線機用アンテナ取付構造の第４実施例の縦断面図である。
【図７】本発明の無線機用アンテナ取付構造の第５実施例の縦断面図である。
【図８】本発明の無線機用アンテナ取付構造の第６実施例を示し、（ａ）はアンテナの正面図であり、（ｂ）は無線機筐体に取り付けた状態で（ａ）のＢ−Ｂ断面矢視拡大図である。
【図９】従来のアンテナを示し、（ａ）は正面図であり、（ｂ）は底面拡大図である。
【符号の説明】
１０アンテナエレメント
１２筒体
１４弾性舌片
１６係合突部
１８リブ
２０給電バネ
２２、２８スリット
２６平面
３０無線機筐体
３２取付孔
３４給電端子[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an antenna mounting structure for a radio device that can easily attach an antenna to a radio device casing.
[0002]
[Prior art]
FIG. 9 shows a structure of an example of a conventional antenna that can be easily attached to a radio housing. 9A and 9B show a conventional antenna, where FIG. 9A is a front view and FIG. 9B is an enlarged bottom view. In FIG. 9, a cylindrical body 12 made of a resin material and having a circular cross section perpendicular to the axial direction is provided in the axial direction of the antenna element 10 at the base end side attachment portion of the helical antenna element 10. Two slits 22 and 22 are provided in the axial direction from the front end surface of the cylindrical body 12 to form an elastic tongue piece 14 having a free end on the front end side of the cylindrical body. Then, an engaging protrusion 16 protruding outward is provided at the free end of the elastic tongue piece 14. In addition, one rib 18 that is long in the axial direction is provided on the outer surface of the cylindrical body 12. Furthermore, a feeding spring 20 that is appropriately electrically connected to the base end portion of the antenna element 10 is provided so as to protrude from the distal end of the cylindrical body of the cylindrical body 12.
[0003]
Although the radio housing is not shown in the figure, an attachment hole corresponding to the outer shape of the cross section perpendicular to the axial direction of the cylindrical body 12 is formed through the radio housing. When the cylindrical body 12 is fitted into the mounting hole by elastically deforming the elastic tongue piece 14, the engagement protrusion 16 engages with the inner wall surface of the radio equipment housing and the movement in the extraction direction is prevented. The In addition, the power supply spring 20 is elastically contacted with a power supply terminal appropriately disposed in the wireless device casing to be electrically connected. Therefore, by inserting the cylindrical body 12 of the antenna into the mounting hole of the wireless device casing, the antenna can be easily fixed and the antenna is electrically connected as appropriate. The rib 18 specifies the posture of the cylindrical body 12 that can be inserted into the mounting hole, and prevents the cylindrical body 12 from rotating about the axis in the mounting hole.
[0004]
[Problems to be solved by the invention]
The conventional antenna structure as described above is easy to mount, but has a problem that the strength of the end of the cylindrical body of the cylindrical body 12 is insufficient and easily damaged. Since the elastic tongue piece 14 is formed by providing slits 22 and 22 from the front end surface of the cylinder, the cross-sectional shape of the front end of the cylinder 12 is a C-shape with a part of a circle cut out. This is due to something. Thus, when the antenna 12 is attached to the radio housing, if the cylinder 12 is inserted with a slight deviation from the mounting hole, the cylinder tip of the cylinder 12 is elastically deformed and deformed into the elastic tongue piece 14. It was damaged when an excessive force was applied in an unobtainable direction. In addition, even after attachment, if a strong bending force is applied to the antenna protruding from the radio housing, the distal end portion of the cylindrical body 12 is also elastically deformed and the elastic tongue piece 14 is damaged. There is a fear.
[0005]
The present invention has been made to improve the above-described conventional technology, and the strength of the tip of the cylindrical body of the antenna mounting portion is not reduced, and the antenna can be simply attached to the radio housing as in the conventional case. An object of the present invention is to provide a radio antenna mounting structure that can be used.
[0006]
[Means for Solving the Problems]
In order to achieve such an object, the antenna mounting structure for a radio of the present invention is provided with a cylindrical body made of a resin material at an antenna mounting portion disposed outside the radio equipment casing. A flat surface that is long in the axial direction from the front end of the cylindrical body is formed on the outer surface, and the free end of the cylindrical front end side is located at the planar position at the intermediate portion of the cylindrical body so that the cylindrical front end of the cylindrical body is closed An elastic tongue having an engagement protrusion projecting outward from the free end portion is provided on the outer surface of the flat surface, and a mounting hole having a hole shape corresponding to the outer shape of the cross section of the cylindrical body is provided in the wireless device casing. When the cylindrical tongue is inserted into the mounting hole by elastically deforming the elastic tongue piece, the flat surface outside the elastic tongue piece elastically contacts the flat surface of the inner peripheral surface of the mounting hole. And the engagement protrusion is engaged to prevent the movement in the pulling direction, and the antenna is attached to the radio housing. It is configured to be attached.
[0007]
Further, the mounting portion of the antenna disposed outside the radio housing, the cylindrical body made of a resin material is provided, a long plane formed axially from Tsutsutai tip to the outer surface of the tubular body, the tubular as is annular cylindrical body front end portion of the body is closed, said cylinder intermediate portion to the above in a plane position Tsutsutai tip side and the free end and the surface of the outer planar also projecting outwardly free end portion An elastic tongue having an engagement protrusion is provided, and a long rib is provided in the axial direction at a position shifted from the plane on the outer surface of the cylindrical body, and an outer shape of a cross section of the cylindrical body is provided in the radio housing. When the cylindrical tongue is inserted into the mounting hole by elastically deforming the elastic tongue piece, the flat surface outside the elastic tongue piece is inserted into the mounting hole. It is elastically contacted with the plane of the inner peripheral surface and the engaging projection engages to prevent movement in the pulling direction. Said the cylindrical body around the axis in the mounting hole is prevented from rotating, the antenna may be configured to be attached to the radio housing by.
[0008]
Then, a cylindrical body made of a resin material is provided at the antenna mounting portion disposed outside the radio housing, and the cylindrical body has a D-shaped outer cross section, and the outer surface is axially extended from the front end of the cylindrical body. the long planar form, as is annular cylindrical body front end portion of the cylindrical body is closed, the cylindrical body intermediate portion to the plane position and the plane surface of the outer and free end of Tsutsutai distal side stripes Provided with an elastic tongue piece having an engaging protrusion protruding outward on the free end, and further provided with two axially long ribs on the outer surface of the cylindrical body at positions shifted to both sides about the axis from the plane, When a mounting hole having a hole shape corresponding to the outer shape of the cross-section of the cylindrical body is formed through the wireless device casing, the cylindrical body is elastically deformed and inserted into the mounting hole. The flat surface outside the elastic tongue piece elastically contacts the flat surface of the inner peripheral surface of the mounting hole, and the engaging protrusion engages and pulls out. Movement in the direction is prevented, moreover the cylindrical body around the axis in the mounting hole by the ribs so as not to rotate, the antenna may be configured to be attached to the radio housing.
[0009]
Further, a cylindrical body made of a resin material and having a circular cross-section is provided at the antenna mounting portion disposed outside the radio equipment casing, and the cylindrical body tip portion is closed and annular. , the elastic tongue piece having an engagement protrusion that protrudes outwardly at its free end and the free end of Tsutsutai tip side in the middle portion of the cylindrical body is provided, a long rib further axially outer surface of the cylindrical body A mounting hole having a hole shape corresponding to the outer shape of the cross-section of the cylindrical body is formed in the wireless device casing, and the cylindrical body is fitted into the mounting hole by elastically deforming the elastic tongue. Then, the elastic tongue piece elastically contacts the inner peripheral surface of the mounting hole and the engaging projection engages to prevent movement in the pulling direction, and the rib causes the shaft to move around the axis in the mounting hole. It may be configured such that the antenna is attached to the wireless device casing so that the cylindrical body does not rotate. .
[0010]
In addition, a feeding spring electrically connected to the base end of the antenna element is provided so as to protrude from the distal end of the cylindrical body, and when the cylindrical body is fitted and inserted into the mounting hole, the feeding spring is attached to the wireless device housing. It is also possible to configure such that an electrical connection is made by elastic contact with a power supply terminal disposed in the body.
[0011]
Furthermore, one end of the wire forming the antenna element is provided so as to protrude from the tip of the cylindrical body of the cylindrical body, and when the cylindrical body is fitted and inserted into the mounting hole, the one end of the wire is inserted into the wireless device casing. It is also possible to configure such that an electrical connection is made by elastic contact with the arranged power supply terminal.
[0012]
And furthermore, while forming an antenna element by making a strip | belt-shaped conductor helical, the one end part of this strip | belt-shaped conductor is protruded from the cylinder front-end | tip of the said cylinder, and when the said cylinder is fitted and inserted in the said attachment hole, It is also possible to configure such that one end portion of the conductor is elastically contacted and electrically connected to a power supply terminal disposed in the wireless device casing.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1A and 1B show an antenna according to a first embodiment of the antenna mounting structure for a radio of the present invention. FIG. 1A is a front view, FIG. 1B is a side view, and FIG. It is the figure attached to the body. FIG. 2 is an AA cross-sectional enlarged view of FIG. 1 (c). FIG. 3 is an enlarged bottom view of FIG. 1 to 3, the same or equivalent members as in FIG.
[0014]
In the drawing, the base end of the antenna element 10 is fixed and electrically connected to a conductive metal fitting 36, and the power supply spring 20 is fixed and electrically connected to the conductive metal fitting 36. Then, the cylindrical body 12 made of a resin material is appropriately fixed to the conductive metal fitting 36 by press-fitting or integral molding by insert molding. A male screw is engraved on the outer surface of the base body side of the antenna element 10 of the cylindrical body 12, and a cover 24 made of a resin material is disposed so as to cover the antenna element 10 and screwed and fixed. Furthermore, a flat surface 26 that is longer in the axial direction than the front end of the cylindrical body is formed on the outer surface of the cylindrical body 12, and the outer shape of the cross section orthogonal to the axial direction of the cylindrical body 12 is substantially D-shaped. Then, an elastic tongue piece 14 is provided at a position of the flat surface 26 in the middle portion of the cylindrical body 12. This elastic tongue piece 14 has a free end on the front end side of the cylindrical body, a flat surface on the outer side thereof, and an engaging projection 16 projecting outward on the free end portion. The slit 28 for providing the elastic tongue piece 14 is U-shaped and does not reach the end of the cylinder. Further, two ribs 18 and 18 are provided on the outer surface of the cylindrical body 12 so as to be shifted in the axial direction by 90 degrees on both sides around the axis from the plane 26.
[0015]
Further, the radio equipment housing 30 has a mounting hole 32 that is substantially D-shaped and provided with grooves corresponding to the ribs 18 and 18 according to the outer shape of the cross section orthogonal to the axial direction of the cylindrical body 12. Drilled. The cylindrical body 12 of the antenna is fitted and inserted into the mounting hole 32 while elastically deforming the elastic tongue piece 14. In the inserted state, the elastic tongue piece 14 elastically contacts the inner peripheral wall of the mounting hole 32, and the engaging protrusion 16 engages with the inner wall surface of the radio equipment housing 30 to prevent movement in the pulling direction. . In addition, the power supply spring 20 is elastically contacted with a power supply terminal 34 disposed in the radio equipment case 30 to be electrically connected. The cylindrical body 12 is specified to be fitted and inserted into the mounting hole 32 by the cross-sectional shape and the ribs 18 and 18.
[0016]
In the first embodiment having such a configuration, the cylindrical body tip portion of the cylindrical body 12 has a closed annular shape, and the strength is not reduced, but the strength is higher than that of the conventional one. Therefore, the elastic tongue piece 14 is not easily damaged when the antenna is attached. Moreover, even after attachment, the antenna is not easily damaged even if it receives a lateral force. Further, in the mounted state, the plane facing the outer side of the elastic tongue piece 14 is elastically contacted with the plane of the inner peripheral surface forming the D-shaped cross section of the mounting hole 32, so that the contact surface is firmly fixed to the extent that it is wide. . In addition, the cylindrical body 12 is supported and fixed to the mounting hole 32 at at least three positions of the flat surface of the elastic tongue piece 14 and the two ribs 18 and 18 which are shifted by 90 degrees on both sides thereof. Secure fixation. In addition, the two ribs 18 and 18 are arranged with an offset of about 180 degrees around the axis, so that the distance between the ribs 18 and 18 is the longest, and the rotation around the axis of the antenna is reliably prevented. .
[0017]
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a longitudinal sectional view of a second embodiment of the antenna mounting structure for a radio of the present invention. 4, the same or equivalent members as in FIGS. 1 to 3 and FIG. 9 are assigned the same reference numerals and redundant description is omitted.
[0018]
In the second embodiment shown in FIG. 4, the wire forming the antenna element 10 is crushed and deformed near the base end of the antenna, and further extended to the base end side. Then, a spacer 40 made of a resin material is integrally formed and fixed by insert molding or the like near the crushed and deformed base end portion. Further, the integrated antenna element 10 and spacer 40 are inserted into a member in which the cover 24 and the cylindrical body 12 are integrally formed of a resin material, and are appropriately fixed. One end of the wire rod extended from the antenna element 10 protrudes from the cylinder tip of the cylinder 12. The cylindrical body 12 is provided with an elastic tongue piece 14 and the like as in the first embodiment. Further, several annular ribs 42, 42 are provided around the axis on the outer surface of the cylindrical body 12, and the outer dimensions of the annular ribs 42, 42 are formed at a small intersection with the inner diameter dimension of the mounting hole 32.
[0019]
With such a configuration, an annular elastic body 44 such as an O-ring is fitted into the cylindrical body 12, and the cylindrical body 12 is fitted and inserted into the mounting hole 32 of the wireless device housing 30. Here, the cylinder 12 is press-fitted into the mounting hole 32 so that the annular ribs 42 and 42 are crushed. Moreover, in the attached state, the annular elastic body 44 is compressed in the axial direction and elastically deformed. Then, the annular ribs 42 and 42 cause the cylindrical body 12 to have no lateral play in the mounting hole 32, and the cylindrical body 12 is elastically biased in the pulling direction by the elasticity of the annular elastic body 44. There is no play in the axial direction because it is engaged by the portion 16 and is prevented from moving in the drawing direction. Therefore, the antenna is securely fixed to the radio equipment case 30 without the wobbling posture.
[0020]
A third embodiment of the present invention will be described with reference to FIG. FIG. 5 is a longitudinal sectional view of a third embodiment of the antenna mounting structure for a radio of the present invention. In FIG. 5, the same or equivalent members as those in FIGS. 1 to 4 and FIG.
[0021]
In the third embodiment of FIG. 5, the wire forming the antenna element 10 is bent, for example, in an S-shape near the base end of the antenna, and further extended to the base end side. A spacer 40 made of a resin material is fixed to the S-shaped portion by integral molding. Further, similarly to the second embodiment, the integrated antenna element 10 and spacer 40 are inserted into a member in which the cover 24 and the cylindrical body 12 are integrally formed of a resin material, and are appropriately fixed. One end of the wire extending from the antenna element 10 is projected from the end of the cylinder 12. Further, the cylindrical body 12 is provided with an elastic tongue piece 14 and the like as in the first embodiment. Furthermore, the elastic tongue piece 14 is formed thicker toward the free end side, and its elasticity is increased toward the free end side. In addition, the surface of the engagement protrusion 16 that engages with the inner wall surface of the radio housing 30 is slightly inclined.
[0022]
With this configuration, in the state where the cylinder 12 is attached to the attachment hole 32 of the radio equipment casing 30, the inclined surface of the engaging protrusion 16 is in elastic contact with the inner wall surface of the radio equipment casing 30, and the wedge effect is caused. The cylindrical body 12 is elastically biased in the insertion direction in the axial direction, and no axial play occurs in the cylindrical body 12. Further, the elastic tongue piece 14 is more elastic on the free end side, and no play is generated in the cylinder 12 in the mounting hole 32 in the lateral direction. Therefore, as in the second embodiment, the antenna is securely fixed to the radio equipment case 30 without the posture being unstable.
[0023]
Furthermore, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 6 is a longitudinal sectional view of a fourth embodiment of the antenna mounting structure for a radio of the present invention. In FIG. 6, the same or equivalent members as in FIGS. 1 to 5 and FIG.
[0024]
In the fourth embodiment of FIG. 6, instead of forming the antenna element 10 in the second embodiment of FIG. 4 with a wire rod, the antenna element 10 is formed in a helical shape with a strip-shaped conductor to be formed into a helical antenna. One end of the cylindrical body 12 protrudes from the cylindrical body tip. Moreover, the helical shape of the antenna element 10 is formed such that the thickness direction of the strip-shaped conductor is the helical axial direction and the width direction is the helical radial direction.
[0025]
With such a configuration, since the thickness direction of the strip-shaped conductor is the helical axial direction, it can be formed in a helical shape with a narrow pitch. Further, by appropriately setting the width and thickness of the belt-like conductor, one end portion protruding from the cylindrical tip of the cylindrical body 12 is higher than the second embodiment of FIG. It can be elastically contacted with stronger elasticity, and the more reliable electrical connection is obtained.
[0026]
Furthermore, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 7 is a longitudinal sectional view of a fifth embodiment of the antenna mounting structure for a radio of the present invention. In FIG. 7, the same or equivalent members as those in FIGS. 1 to 6 and FIG.
[0027]
In the fifth embodiment of FIG. 7, instead of the wire rod of the third embodiment of FIG. 5, the antenna element 10 is formed into a helical antenna with a strip-shaped conductor, and one end thereof is a cylindrical body 12. It protrudes from the tip of the cylinder. Moreover, the helical shape of the antenna element 10 is formed such that the width direction of the strip-shaped conductor is the helical axial direction and the thickness direction is the helical radial direction.
[0028]
With such a configuration, since the width direction of the strip conductor is a helical axial direction, the shape is hardly changed in the axial direction, the helical pitch does not fluctuate so much, and the antenna characteristics are stable. . In addition, since the thickness direction of the strip-shaped conductor is a helical radial direction, the winding diameter can be reduced. Similarly to the fourth embodiment of FIG. 6, by appropriately setting the thickness and width of the strip-shaped conductor, one end portion protruding from the tip of the cylinder body of the cylinder body 12 is made more than the third embodiment of FIG. The power supply terminal 34 in the radio equipment case 30 can be elastically contacted with a strong elasticity, so that a reliable electrical connection can be obtained.
[0029]
Further, a sixth embodiment of the present invention will be described with reference to FIG. 8A and 8B show a sixth embodiment of the antenna mounting structure for a radio device according to the present invention, in which FIG. 8A is a front view of the antenna, and FIG. It is -B cross-section arrow enlarged view. In FIG. 8, the same or equivalent members as those in FIGS. 1 to 7 and FIG.
[0030]
In the sixth embodiment of FIG. 8, the cylindrical body 12 has a substantially circular outer shape in cross section perpendicular to the axial direction, and an elastic tongue piece 14 is provided in the middle thereof. This elastic tongue piece 14 has a cylindrical body distal end as a free end, and an engaging protrusion 16 protruding outward is formed at the free end. The surface facing the outer side of the elastic tongue piece 14 has an arcuate cross-sectional shape like the cylindrical body 12. The slit 28 for providing the elastic tongue piece 14 is U-shaped and does not reach the end of the cylinder. In addition, one rib 18 is provided on the outer surface of the cylinder 12 so as to be long in the axial direction. A mounting hole 32 having a shape corresponding to the outer shape of the cross section of the cylinder 12 is formed in the wireless device casing 30.
[0031]
In the sixth embodiment having such a configuration, the distal end portion of the cylindrical body 12 has a closed annular shape, and as in the other embodiments, the strength of the distal end portion of the cylindrical body 12 is not reduced, It will not be damaged.
[0032]
In the above embodiment, the antenna is composed of the helical antenna element 10 fixed to the radio housing 30. However, the antenna is not limited to this, and may be a whip antenna element that can be pulled out and stored. Further, it may be composed of a fixed helical antenna element and a whip antenna element that can be pulled out and stored, and further, it may be composed of a whip antenna element that can be pulled out and stored and a helical antenna element fixed to the tip of the whip antenna element. Also good. Further, the outer shape of the cross section of the cylindrical body 12 is not limited to a circle or a D shape as in the above embodiment, but may be an oval shape, a quadrangle, a hexagon, or the like. And the elastic tongue piece 14 is not restricted to one, A plurality may be provided. Further, the ribs 18 and 18 provided on the outer surface of the cylindrical body 12 in the axial direction may be omitted if rotation around the axis is sufficiently prevented by the outer shape of the cross section of the cylindrical body 12. Further, the number of the ribs 18 and 18 is not limited to one or two, and may be three or more, and the position and the number of the ribs 18 and 18 are not limited to the above embodiment.
[0033]
【The invention's effect】
As described above, since the radio antenna mounting structure of the present invention is configured, the following special effects are achieved.
[0034]
In the antenna mounting structure for a radio device according to claim 1, the tip end portion of the cylindrical body is in an annular shape, the strength of the tip end portion of the cylindrical body is not reduced, and is not easily damaged during mounting. . Further, since the mounting hole and the elastic tongue piece are elastically contacted with each other in a plane, they are in contact with each other over a wide area and can be stably fixed. Moreover, rotation around the axis is prevented by the plane provided on the cylinder.
[0035]
In the radio antenna mounting structure according to claim 2, the same effect as that of claim 1 can be obtained, and the cylindrical body can be rotated around the axis in the mounting hole by the long rib in the axial direction. Definitely blocked.
[0036]
In the antenna mounting structure for a radio device according to claim 3, the same effect as in claim 1 can be obtained, and the two ribs provided on both sides of the cylindrical body so as to be shifted on both sides about the axis. The cylindrical body is elastically supported in at least three places with respect to the mounting hole, and is fixed in a stable posture.
[0037]
In the antenna mounting structure for a radio device according to claim 4, since the elastic tongue piece is provided at an intermediate portion of the cylindrical body, the distal end portion of the cylindrical body is a closed annular shape, and its strength is reduced. There is no, and it is hard to be damaged compared with the conventional structure at the time of attachment.
[0038]
6. The antenna mounting structure for a radio device according to claim 5, wherein the antenna is fixed at the same time as the antenna is fixed by simply fitting and inserting the cylindrical body of the antenna mounting portion into the mounting hole of the radio device casing. The mounting work is extremely simple.
[0039]
In the antenna mounting structure for a radio device according to claim 6, the one end portion of the wire material forming the antenna element protrudes from the tip of the cylindrical body, and the one end portion of the wire material is attached to the radio device housing in the attached state. Since the antenna is elastically contacted and electrically connected to the power supply terminal disposed in the body, the antenna power supply structure is simple and reliable electrical continuity is obtained, and the number of components is small and suitable for mass production.
[0040]
In the antenna mounting structure for a radio device according to claim 7, since the antenna element is formed in a helical shape with a strip-shaped conductor, a helical antenna with a narrow pitch can be formed if the thickness direction is a helical axial direction, If the width direction is a helical axial direction, it is possible to form a helical antenna having a small winding diameter and a pitch that is difficult to deform. In addition, one end of the strip-shaped conductor protrudes from the tip of the cylindrical body, and in the attached state, the one end of the strip-shaped conductor is elastically contacted with a power supply terminal disposed in the wireless device casing to be electrically connected. Since it did in this way, by setting the thickness and width | variety of a strip | belt-shaped conductor suitably, it is elastically contacted by stronger elasticity and reliable electrical conduction is obtained.
[Brief description of the drawings]
1A and 1B show an antenna of a first embodiment of a radio antenna mounting structure according to the present invention, in which FIG. 1A is a front view, FIG. 1B is a side view, and FIG. It is the figure attached to the body.
FIG. 2 is an AA cross-sectional enlarged view of FIG. 1 (c).
FIG. 3 is an enlarged bottom view of FIG. 1 (c).
FIG. 4 is a longitudinal sectional view of a second embodiment of the antenna mounting structure for a radio of the present invention.
FIG. 5 is a longitudinal sectional view of a third embodiment of the antenna mounting structure for a radio of the present invention.
FIG. 6 is a longitudinal sectional view of a fourth embodiment of the antenna mounting structure for a radio of the present invention.
FIG. 7 is a longitudinal sectional view of a fifth embodiment of the antenna mounting structure for a radio of the present invention.
FIGS. 8A and 8B show a sixth embodiment of the antenna mounting structure for a radio device according to the present invention, wherein FIG. 8A is a front view of the antenna, and FIG. It is -B cross-section arrow enlarged view.
9A and 9B show a conventional antenna, in which FIG. 9A is a front view and FIG. 9B is an enlarged bottom view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Antenna element 12 Cylinder 14 Elastic tongue piece 16 Engagement protrusion 18 Rib 20 Feeding spring 22, 28 Slit 26 Plane 30 Radio equipment case 32 Mounting hole 34 Feeding terminal

Claims

A cylindrical body made of a resin material is provided on the antenna mounting portion disposed outside the radio housing, and a long plane in the axial direction from the front end of the cylindrical body is formed on the outer surface of the cylindrical body. as is annular Tsutsutai tip is closed, engaged with the cylindrical body of the middle portion to the above in a plane position Tsutsutai tip side and the free end and the surface of the outer planar also projecting outwardly free end portion An elastic tongue having a protrusion is provided, and a mounting hole having a hole shape corresponding to the outer shape of the cross-section of the cylindrical body is formed through the radio equipment housing, and the cylindrical body is inserted into the mounting hole. When elastically deformed and fitted and inserted, the flat surface outside the elastic tongue piece elastically contacts the flat surface of the inner peripheral surface of the mounting hole, and the engaging protrusion engages to prevent movement in the pulling direction. And mounting the antenna for a radio device, wherein the antenna is attached to the radio device casing. Elephants.

A cylindrical body made of a resin material is provided on the antenna mounting portion disposed outside the radio housing, and a long plane in the axial direction from the front end of the cylindrical body is formed on the outer surface of the cylindrical body. as is annular Tsutsutai tip is closed, engaged with the cylindrical body of the middle portion to the above in a plane position Tsutsutai tip side and the free end and the surface of the outer planar also projecting outwardly free end portion An elastic tongue having a protrusion is provided, and a long rib in the axial direction is provided on the outer surface of the cylindrical body at a position displaced from the plane about the axis. When the cylindrical tongue is inserted into the mounting hole by elastically deforming the elastic tongue piece, the flat surface outside the elastic tongue piece is the inner periphery of the attachment hole. Elastically contact with the plane of the surface, and the engaging protrusion engages to prevent movement in the pulling direction, and the rib The mounting said tubular body around the axis in the hole so as not to rotate, the antenna antenna attachment structure for radios, characterized by being configured to be attached to the radio housing.

A cylindrical body made of a resin material is provided at the antenna mounting portion disposed outside the radio equipment casing. The cylindrical body has a D-shaped outer cross section, and the outer surface is long in the axial direction from the front end of the cylindrical body. plane is formed, such that an annular cylindrical body front end portion of the cylindrical body is closed, said Tsutsutai distal end side in a plane position and the free end and the surface of the outer planar in the middle portion of the cylindrical body also Yu An elastic tongue having an engaging protrusion projecting outward is provided at the end, and two long ribs in the axial direction are provided on the outer surface of the cylindrical body at positions shifted from the plane to both sides around the axis. When an attachment hole having a hole shape corresponding to the outer shape of the cross section of the cylindrical body is formed through the machine casing, and the elastic tongue piece is elastically deformed and inserted into the attachment hole, the elastic tongue is The flat surface on the outer side of the piece elastically contacts the flat surface of the inner peripheral surface of the mounting hole and the engaging protrusion engages in the pulling direction. For radio equipment, wherein the antenna is attached to the radio housing so that movement is prevented and the cylinder does not rotate around the axis in the attachment hole by the rib. Antenna mounting structure.

The antenna mounting portion disposed outside the radio housing is provided with a cylindrical body made of a resin material and having a circular cross-sectional outer shape, and the cylindrical body tip is closed, the elastic tongue piece having an engagement protrusion that protrudes outwardly at its free end and the free end of Tsutsutai tip side in the middle portion of the cylindrical body is provided, the provided longer ribs on the outer surface in the axial direction of the cylindrical body Then, a mounting hole having a hole shape corresponding to the outer shape of the cross section of the cylindrical body is formed through the radio equipment housing, and the cylindrical body is fitted into the mounting hole by elastically deforming the elastic tongue piece. The elastic tongue piece elastically contacts the inner peripheral surface of the mounting hole and the engagement protrusion engages to prevent movement in the pulling direction, and the rib is rotated around the axis in the mounting hole. The antenna is attached to the radio housing so that the antenna does not rotate. Antenna mounting structure for that radio.

5. The antenna mounting structure for a radio device according to claim 1, wherein a feeding spring electrically connected to a base end of the antenna element is provided so as to protrude from a tip end of the cylindrical body, and the cylinder is provided in the mounting hole. An antenna mounting structure for a radio device, wherein when the body is fitted and inserted, the power supply spring is elastically contacted and electrically connected to a power supply terminal disposed in the radio device casing.

5. The antenna mounting structure for a radio device according to claim 1, wherein one end portion of a wire forming an antenna element is provided so as to protrude from a cylindrical body end of the cylindrical body, and the cylindrical body is fitted into the mounting hole. An antenna mounting structure for a radio device, wherein one end of the wire rod is elastically contacted and electrically connected to a power supply terminal disposed in the radio device casing when inserted.

In the antenna mounting structure for a radio device according to any one of claims 1 to 4, an antenna element is formed by forming a belt-like conductor in a helical shape, and one end portion of the belt-like conductor is provided so as to protrude from a cylinder tip of the cylinder, The wireless device is configured such that when the cylindrical body is fitted and inserted into the mounting hole, one end portion of the belt-like conductor is elastically contacted and electrically connected to a power supply terminal disposed in the wireless device casing. Antenna mounting structure for aircraft.