JP4075690B2 - Mounting structure for vehicle antenna device - Google Patents

Description

【００３０】
以上のように、アンテナ基板２１が（つまり、アンテナＡが）、パネル空間１３内において、金属製の車体部材２，３（車体側接地導体）からできるだけ離間するように、アウタパネル１２にできるだけ近い側に取り付けられることにより、利得特性に悪影響を及ぼす金属部材２，３（金属製の車体部材）からより離れた箇所にアンテナＡを設けることができ、その受信性能の向上を図ることができる。
【００３１】
また、これによりアンプの不要化も図ることが可能となる。アンプを不要にできた場合には、アンテナ装置の重量の低減、製作コスト等の低減、更には、開発サイドでの開発工数の削減を図ることができる。
【００３２】
更に、アンテナＡや給電部２２を含めてアンテナ基板２１は、非導電性材料（合成樹脂材料）で成るインナパネル１１及びアウタパネル１２の内側（つまり、パネル空間１３内）に配設されるので、受信性能を損なうことなく、アンテナ装置２０が車両Ｍ１の外部から見えることを防止し、車両Ｍ１の外観性向上に寄与することができる。
【００３３】
更に、アンテナ基板２１を上記のように、パネル空間１３内において、車両に装備された電気系要素としてのリヤデフォッガの熱線１７からできるだけ離間するように、アウタパネル１２にできるだけ近い側に、換言すれば、パネル空間１３内においてリフトゲート１０のウインドウガラス支持部１０ｆから離間した位置に、配置したことにより、利得特性および／またはノイズ特性に悪影響を及ぼす電気系要素１７からより離れた箇所にアンテナＡを設けることができ、受信性能の一層の向上を図ることができる。
【００３４】
また更に、アンテナ基板２１は、インナパネル１１からアウタパネル１２に向かって突出する突出部１１ｒ（補強リブ）に取り付けられているので、アンテナ基板２１を取り付けるための部材を特別に設けること無く、インナパネル１１の補強リブ１１ｒを利用してアンテナ基板２１を取り付けることができる。これにより、アンテナ装置２０の取付構造を簡素化でき、また、製造および組付コストの低減を図ることが可能になる。
【００３５】
尚、この替わりに、アウタパネル１２からインナパネル１１側に向かって突出するように突出部（例えば補強リブ）を設け、その先端部分にアンテナ基板２１を固定するようにしても良い。更には、アウタパネル１２の内面に対して直接にアンテナ基板２１を固定するようにしても良い。また、アンテナ基板２１の固定方法を例えばビス止めなど、他の公知の手段を用いて行うようにしても良い。
【００３６】
或いは、アウタパネル１２及びインナパネル１１のそれぞれに突出部（例えば補強リブ）を設けておき、アンテナ基板２１をこれら両突出部に挟み込まれるようにして取り付けることも可能である。この場合には、より確実で堅固なアンテナ取付を行うことができる。
【００３７】
また、本実施の形態では、車体に形成された開口部を開閉可能に覆う非金属製の開閉体としてのリフトゲート１０を利用して、アンテナ装置２０の取付を行うことができ、このリフトゲート１０のパネル空間１３内における上端部にアンテナ基板２１を（つまりアンテナＡを）取り付けることで、金属製の車体部材２，３（車体側接地導体）からできるだけ離間するように、アウタパネル１２にできるだけ近い側にアンテナＡが取り付けられる。これにより、利得特性に悪影響を及ぼす金属部材２，３（金属製の車体部材）からより離れた箇所にアンテナＡを設けることができ、その受信性能の向上を図ることができる。
【００３８】
尚、車両の後端側に、設置位置が通常よりもかなり高く設定されたランプ装置（所謂、ハイマウントタイプのストップランプやウインカーランプ）が設けられている場合には、このハイマウントタイプのランプ装置が、アンテナの利得特性および／またはノイズ特性に悪影響を及ぼす電気系要素となる。
従って、この場合には、上記ハイマウントタイプのランプ装置からもより離れた箇所にアンテナを設けることで、所要の受信性能の確保が図られる。
【００３９】
上述の実施の形態では、アンテナ基板２１上にアンテナ素子Ｅ１，Ｅ２，Ｅ３を配設してアンテナパターンＡを形成し、そのアンテナ基板２１をパネル空間１３内に固定するようにしていたが、この替わりに、アンテナ基板２１を用いることなく、アンテナ素子を直接に固定するように構成することも可能である。
【００４０】
次に、本発明の他の実施形態について説明する。尚、以下の説明において、上述の図１〜図３で示した実施形態における場合と同様の構成を備え同様の作用をなすものについては同一の符号を付し、それ以上の説明は省略する。
図５は、本発明の他の実施形態における第１実施例を示している。この第１実施例では、インナパネル１１又はアウタパネル１２の何れか一方から他方に向かって突出するように設けられた突出リブＲ１（例えば補強リブ）の側面に、該リブＲ１と平行に伸長する固定用円柱部Ｃ１が一体的に設けられている。上記突出リブＲ１の先端面Ｒ１ｆはフラット（平坦）に形成されている。
【００４１】
上記のような固定用円柱部Ｃ１は、より好ましくは、リブＲ１の成形時に一体成形される。或いはリブＲ１の成形後に、接着または溶着等によってリブＲ１に対し一体的に固定するようにして設けることも可能である。上記円柱部Ｃ１の略中心には、所定直径の穴部Ｃ１ｈが設けられている。
【００４２】
一方、帯状のアンテナ素子Ｓ１には、上記固定用円柱部Ｂ１に対応した箇所に、アンテナ素子Ｓ１の側方に張り出す張出部Ｄ１が形成されており、この張出部Ｄ１の略中心に所定直径の穴部Ｄ１ｈが形成されている。
そして、突出リブＲ１のフラットな先端面Ｒ１ｆ上にアンテナ素子Ｓ１を載置し、張出部Ｄ１の穴部Ｄ１ｈを円柱部Ｃ１の穴部Ｃ１ｈに対して位置合わせした上で、ビスＢ１を適用することにより、アンテナ素子Ｓ１を突出リブＲ１の先端面Ｒ１ｆ上に確実に固定することができる。
【００４３】
このように、本実施例によれば、インナパネル１１又はアウタパネル１２の何れか一方から他方に向かって突出するように設けられた突出リブＲ１に、アンテナ素子Ｓ１を直接に固定するようにしたので、アンテナ素子固定用のアンテナ基板は不要とすることができ、アンテナ装置の取付構造を簡素化できる。また、製造および組付コストの低減を図ることができる。
この場合、アンテナ装置を取り付けるための部材をわざわざ設けることなく、上記アウタパネル１２及び／又はインナパネル１１の補強リブＲ１を利用してアンテナ装置の取付を行うことができる。
【００４４】
図６は、本発明の他の実施形態における第２実施例を示している。この第２実施例では、インナパネル１１又はアウタパネル１２の何れか一方に、他方に向かって突出するように所定幅の突出リブＲ２（例えば補強リブ）が設けられており、帯状のアンテナ素子Ｓ２の側部には、上記突出リブＲ２の幅に略等しい幅方向距離を隔てた縦壁部Ｓ２ａ，Ｓ２ｂが設けられている。これら縦壁部Ｓ２ａ，Ｓ２ｂは、好ましくは、アンテナ素子Ｓ２の長手方向についても所定距離を隔てるように設定されている。このような縦壁部Ｓ２ａ，Ｓ２ｂは、アンテナ素子Ｓ２の両側に側方へ張り出す張出部分を形成しておき、これら張出部分を略直角に折り曲げることによって設けることができる。
【００４５】
アンテナ素子Ｓ２を上記突出リブＲ２のフラットな先端面Ｒ２ｆ上に載置する際には、縦壁部Ｓ２ａ，Ｓ２ｂを下向きにして、アンテナ素子Ｓ２を突出リブＲ２の上方から被せることにより、縦壁部Ｓ２ａ，Ｓ２ｂが突出リブＲ２の各側面にガイドされながら、アンテナ素子Ｓ２が突出リブＲ２の先端側に嵌め込まれる。
そして、例えば鞍型とされたクリップＦ２を用いて、アンテナ素子Ｓ２が突出リブＲ２の先端面Ｒ２ｆ上に固定される。
【００４６】
上記クリップＦ２は、例えばプラスチック製で、下側に向かって開口した断面逆Ｕ字状の溝部Ｆ２ｇを備えており、この溝部Ｆ２ｇの幅を上記突出リブＲ２の幅よりも若干小さく設定することで、該突出リブＲ２を挟み込むようにして嵌合させた際に、一定の締め代をもって嵌合するようになっている。この嵌合力によって、アンテナ素子Ｓ２が突出リブＲ２の先端面Ｒ２ｆ上に確実に固定される。尚、このようなクリップＦ２を用いる代わりに、接着剤や接着テープの適用など、他の手段で固定するようにしても良い。
【００４７】
図７は、本発明の他の実施形態における第３実施例を示している。この第３実施例では、所定幅の突出リブＲ３（例えば補強リブ）の所定部位に、例えば突出リブＲ３と同幅の角柱状の突起部Ｔ３が一体的に形成されている。
一方、帯状のアンテナ素子Ｓ３の途中部には、当該アンテナ素子Ｓ３の幅よりも大きい辺を有する矩形もしくは正方形状の取付部Ｇ３が設けられ、該取付部Ｇ３には、上記突起部Ｔ３に嵌合する矩形もしくは正方形状の取付穴Ｇ３ｈが形成されている。
【００４８】
そして、アンテナ素子Ｓ３を上記突出リブＲ３のフラットな先端面Ｒ３ｆ上に固定する際には、当該先端面Ｒ３ｆ又はアンテナ素子Ｓ３の裏面側に接着剤を塗布しておき、アンテナ素子Ｓ３の取付部Ｇ３の取付穴Ｇ３ｈが突出リブＲ３の突起部Ｔ３に嵌合するように位置設定した上で、アンテナ素子Ｓ３を突出リブＲ３の上方から被せ、アンテナ素子Ｓ３の裏面を先端面Ｒ３ｆに当接させて押圧力を加える。これにより、接着剤の作用で確実かつ堅固な固定が行われる。
【００４９】
図８及び図９は、本発明の他の実施形態における第４実施例を示している。この第４実施例は、第３実施例の一つの変形例に該当するもので、アンテナ素子の固定に接着剤を適用する代わりに、突起部を熱で溶かして固定するものである。この第４実施例では、図８に示されるように、突出リブＲ４は、第３実施例におけるものＴ３と同様の突起部Ｔ４を有し、アンテナ素子Ｓ４は、第３実施例におけるものＧ３及びＧ３ｈと同様の取付部Ｇ４及び取付穴Ｇ４ｈを備えている。
【００５０】
アンテナ素子Ｓ４を上記突出リブＲ４のフラットな先端面Ｒ４ｆ上に固定する際には、アンテナ素子Ｓ４の取付部Ｇ４の取付穴Ｇ４ｈが突出リブＲ４の突起部Ｔ４に嵌合するように位置設定した上で、アンテナ素子Ｓ４を突出リブＲ４の上方から被せ、アンテナ素子Ｓ４の裏面を先端面Ｒ４ｆに当接させる。
この状態で、突起部Ｔ４に熱を加え、図９に示すように、該突起部Ｔ４を溶かして潰すことにより、アンテナ素子Ｓ４の取付部Ｇ４が、突出リブＲ４の先端面Ｒ４ｆ上に非常に強固に固定されるようになっている。
【００５１】
図１０は、本発明の他の実施形態における第５実施例を示している。この第５実施例は、第３実施例の一つの変形例に該当するもので、アンテナ素子の取付部に形成した取付穴に折り返し部を設けて、ガタ付きや脱落の防止を図るものである。
この第５実施例では、突出リブＲ５は、第３実施例におけるものＴ３と同様の突起部Ｔ５を有し、アンテナ素子Ｓ５は、第３実施例におけるものＧ３及びＧ３ｈと同様の取付部Ｇ５及び取付穴Ｇ５ｈを備えている。
【００５２】
但し、この第５実施例では、上記取付穴Ｇ５ｈの内周部の少なくとも一部（本実施例では、対向する２辺）に、対を成すようにして折り返し部Ｊ５が一体的に設けられている。このような折り返し部Ｊ５は、取付穴Ｇ５ｈを形成する際の切断加工において、切断部分を除去せずに折り返すように折り曲げ加工することによって得ることができる。
【００５３】
アンテナ素子Ｓ５を上記突出リブＲ５のフラットな先端面Ｒ５ｆ上に固定する際には、アンテナ素子Ｓ５の取付部Ｇ５の取付穴Ｇ５ｈが突出リブＲ５の突起部Ｔ５に嵌合するように位置設定した上で、アンテナ素子Ｓ５を突出リブＲ５の上方から被せ、アンテナ素子Ｓ５の裏面を先端面Ｒ５ｆに当接させる。このとき、上記折り返し部Ｊ５はその弾性力に抗して押し広げられる。
換言すれば、取付穴Ｇ５ｈを突出リブＲ５の突起部Ｔ５に嵌合させた嵌合状態では、折り返し部Ｊ５の弾性に基づく付勢力が嵌合部に作用することとなり、アンテナ素子Ｓ５のガタ付きが規制され、また、脱落が確実に防止される。尚、この場合において、接着剤を併用するようにしても良い。
【００５４】
図１１は、本発明の他の実施形態における参考例を示している。この参考例では、インナパネル１１又はアウタパネル１２の何れか一方（図１１の例ではインナパネル１１）に、他方に向かって突出するように所定幅の突出リブＲ６（例えば補強リブ）が設けられ、他方のアウタパネル１２にもインナパネル１１側に向かって突出するように所定幅の突出リブＲ６’（例えば補強リブ）が設けられている。尚、より好ましくは、アウタパネル１２側の突出リブＲ６’とインナパネル１１側の突出リブＲ６とは、その伸長方向が略直交するように設定されている。また、アウタパネル１２側の突出リブＲ６’の突出高さは、インナパネル１２側の突出リブＲ６のそれよりも、若干量だけ引く設定されている。
【００５５】
インナパネル１１側の所定幅の突出リブＲ６には、例えば突出リブＲ６と同幅の２本の角柱状突起部Ｔ６が一体的に形成されている。これら２本の突起部Ｔ６は突出リブＲ６の長手方向に所定距離を隔てて配置されている。尚、アウタパネル１２側の突出リブＲ６’は、インナ及びアウタの両パネル１１及び１２を組み合わせた際に、上記インナパネル１１側の突起部Ｔ６間に位置するように設定されている。
一方、帯状のアンテナ素子Ｓ６の途中部には、所定長さの円弧状部分Ｓ６ｃが設けられている。この円弧状部分Ｓ６ｃの長さは、突出リブＲ６の２本の突起部Ｔ６間の距離よりも短く設定されている。
【００５６】
そして、アンテナ素子Ｓ６をパネル空間１３内に配設する際には、上記円弧状部分Ｓ６ｃが一対の突起部Ｔ６間に位置するようにアンテナ素子Ｓ６を位置決めし、円弧状部分Ｓ６ｃの両側のフラットな部分を上記突起部Ｔ６の表面Ｔ６ｆ上に載置した後、インナパネル１１とアウタパネル１２とを組み立てることにより、アウタパネル１２側の突出リブＲ６’がインナパネル１１側の２つの突起部Ｔ６間に嵌り込む。
これにより、アンテナ素子Ｓ６が、インナパネル１１の突出リブＲ６の先端部とアウタパネル１２側の突出リブＲ６’の先端部との間に挟み込まれるようにして、確実かつ堅固に固定されるようになっている。
【００５７】
図１２〜図２０で示される実施例は、インナパネル１１又はアウタパネル１２の何れか一方から他方に向かって突出するように設けられた突出リブに、アンテナ素子を直接に（アンテナ基板を用いずに）固定する場合について、主としてアンテナ素子の位置決めの仕方を説明するものである。
【００５８】
図１２は、本発明の他の実施形態における第６実施例を示している。この第６実施例では、突出リブ７の先端側に、上記図１１で示した参考例における場合と同様の一対の角柱状突起部Ｔ７が一体的に形成されている。
一方、帯状のアンテナ素子Ｓ７には、上記角柱状の突起部Ｔ７に対応して、平面視でコ字形に張り出す一対の張出部Ｄ７が設けられている。これら一対の張出部Ｄ７は、好ましくは、互いに逆方向に開口するように設定されている。
【００５９】
アンテナ素子Ｓ７を上記突出リブＲ７に対して位置決めする際には、アンテナ素子Ｓ７の張出部Ｄ７が突出リブＲ７の突起部Ｔ７に嵌合するように位置設定した上で、アンテナ素子Ｓ７を突出リブＲ７の上方から被せ、アンテナ素子Ｓ７の裏面を先端面Ｒ７ｆに当接させれば良い。
この場合、例えば、突出リブＲ７のフラットな先端面Ｒ７ｆ又はアンテナ素子Ｓ７の裏面側に接着剤を適用する等の固定方法を用いることで、良好な位置決め状態で固定を行える。
【００６０】
このように、アンテナ素子Ｓ７は、突出リブＲ７の先端に形成された凸状部（突起部Ｔ７）によって位置決めされた状態で、上記突出リブＲ７に取り付けられているので、より簡単で確実なアンテナ取付を行うことができる。しかも、アンテナ素子Ｓ７を位置決めするための部材を特別に設ける必要が無く、位置決め及び取付構造を簡素化でき、また、製造および組付コストの低減を図ることができる。
【００６１】
図１３は、本発明の他の実施形態における第７実施例を示している。この第７実施例では、上記第６実施例の一つの変形例に該当するもので、インナパネル１１及びアウタパネル１２の何れか一方に設けられた突出リブＲ５は、第６実施例におけるものＴ７と同様の突起部Ｔ８を有している。
一方、帯状のアンテナ素子Ｓ８は、その平坦面が突出リブＲ８の側面と平行になるように配置した状態で、角柱状の突起部Ｔ８に対応し、且つ、平面視でコ字形に張り出す一対の張出部Ｄ８が設けられている。これら一対の張出部Ｄ８は、好ましくは、第６実施例における場合と同様に、互いに逆方向に開口するように設定されている。
【００６２】
アンテナ素子Ｓ８を上記突出リブＲ８に対して位置決めする際には、アンテナ素子Ｓ８の張出部Ｄ８が突出リブＲ８の突起部Ｔ８に嵌合するように位置設定した上で、アンテナ素子Ｓ８を突出リブＲ８の上方から被せ、アンテナ素子Ｓ８の下端部を突出リブＲ８の先端面Ｒ８ｆに当接させれば良い。
この場合、例えば、アンテナ素子Ｓ８の張出部Ｄ８の裏面側と角柱状突起部Ｔ８の表面との間に接着剤を適用する等の固定方法を用いることで、良好な位置決め状態で固定を行える。
【００６３】
図１４は、本発明の他の実施形態における第８実施例を示している。この第８実施例は、前述の第３実施例と同様の構造を有するもので、アンテナ素子Ｓ９に設けた取付部Ｇ９の矩形状穴部Ｇ９ｈを、突出リブＲ９の先端側に設けた角柱状突起部Ｔ９に嵌合させることで、正確な位置決めが行える。アンテナ素子Ｓ９の固定方法としては、第３実施例における場合と同じく、突出リブＲ９の先端面Ｒ９ｆと帯状のアンテナ素子Ｓ９の裏面との間への接着剤の適用が可能である。
【００６４】
図１５は、本発明の他の実施形態における第９実施例を示している。この第９実施例は、上記第８実施例の一つの変形例に該当するものである。
この第９実施例では、突出リブＲ１０の先端側に設けた一対の突起部Ｔ１０は上下２段構造で、アンテナ素子Ｓ１０は、具体的には、下段突起部Ｔ１０ｂの上面Ｔ１０ｃに対して固定される。
【００６５】
アンテナ素子Ｓ１０には、上記突起部Ｔ１０に対応して一対の取付部Ｇ１０が設けられ、各取付部Ｇ１０に形成した矩形状穴部Ｇ１０ｈを、上記突起部Ｔ１０の上段突起部Ｔ１０ａに嵌合させることで、正確な位置決めが行える。アンテナ素子Ｓ１０の固定方法としては、下段突起部Ｔ１０ｂの上面Ｔ１０ｃと帯状のアンテナ素子Ｓ１０の裏面との間への接着剤の適用が可能である。
【００６６】
図１６は、本発明の他の実施形態における第１０実施例を示している。この第１０実施例では、突出リブＲ１１の先端側に凹部Ｋ１１が形成されている。
一方、アンテナ素子Ｓ１１は、突出リブＲ１１の側面と平行で該リブＲ１１の幅と等しいか又は若干広い間隔を隔てて配置された一対の平行部Ｓ１１ａ，Ｓ１１ｂを連結部Ｓ１１ｃで連結して構成されている。
【００６７】
アンテナ素子Ｓ１１を上記突出リブＲ１１に対して位置決めする際には、アンテナ素子Ｓ１１の連結部Ｓ１１ｃが突出リブＲ１１の凹部Ｋ１１に嵌合するように位置設定した上で、アンテナ素子Ｓ１１を突出リブＲ１１の上方から被せ、アンテナ素子Ｓ１１の連結部Ｓ１１ｃの裏面が突出リブＲ１１の凹部Ｋ１１の底面Ｋ１１ｃに当接するまで挿入させれば良い。
この場合、例えば、上記連結部Ｓ１１ｃの裏面側と凹部Ｋ１１の底面Ｋ１１ｃとの間に接着剤を適用する等の固定方法を用いることで、良好な位置決め状態で固定を行える。
【００６８】
このように、上記アンテナ素子Ｓ１１は、突出リブＲ１１の先端に形成された凹状部Ｋ１１によって位置決めされた状態で、上記突出リブＲ１１に取り付けられているので、より簡単で確実なアンテナ取付を行うことができる。しかも、アンテナ素子Ｓ１１を位置決めするための部材を特別に設ける必要が無く、位置決め及び取付構造を簡素化でき、また、製造および組付コストの低減を図ることができる。
【００６９】
図１７は、本発明の他の実施形態における第１１実施例を示している。この第１１実施例では、突出リブＲ１２の先端側に長手方向に所定間隔をあけて一対の凹部Ｋ１２が形成されている。
一方、アンテナ素子Ｓ１２には、突出リブＲ１２の先端面Ｒ１２ｆと平行に配置され、平面視でコ字状に張り出す張出部Ｄ１２が形成されている。この張出部Ｄ１２は、アンテナ素子Ｓ１２の本体部分Ｓ１２ａの伸長方向と平行に配置された平行部Ｄ１２ｂと、該平行部Ｄ１２ｂの前後の端部から直角に折れ曲がるように形成され、アンテナ素子Ｓ１２の本体部分Ｓ１２ａに一体的に繋がる連結部Ｄ１２ｃとで構成されている。該連結部Ｄ１２ｃの幅は、突出リブＲ１２の凹部Ｋ１２の幅よりも若干小さく設定されている。
【００７０】
アンテナ素子Ｓ１２を上記突出リブＲ１２に対して位置決めする際には、アンテナ素子Ｓ１２の連結部Ｄ１２ｃが突出リブＲ１２の凹部Ｋ１２に嵌合するように位置設定した上で、アンテナ素子Ｓ１２を突出リブＲ１２の上方から被せ、アンテナ素子Ｓ１２の連結部Ｄ１２ｃの裏面が突出リブＲ１２の凹部Ｋ１２の底面Ｋ１２ｃに当接するまで挿入させれば良い。
この場合、例えば、上記連結部Ｄ１２ｃの裏面側と凹部Ｋ１２の底面Ｋ１２ｃとの間に接着剤を適用する等の固定方法を用いることで、良好な位置決め状態で固定を行える。
【００７１】
図１８は、本発明の他の実施形態における第１２実施例を示している。この第１２実施例では、突出リブＲ１３の先端側に凹部Ｋ１３が形成されている。
一方、アンテナ素子Ｓ１３は、上記凹部Ｋ１３の幅よりも若干小さい幅を有し、突出リブＲ１３の伸長方向と直交する方向に配列されている。また、このアンテナ素子Ｓ１３には、その本体部Ｓ１３ａと直交する方向（つまり、突出リブＲ１３の伸長方向）に延びる一対のガイド部Ｓ１３ｂが設けられている。このガイド部Ｓ１３ｂの間隔は、突出リブＲ１３の幅よりも若干大きく設定されている。
【００７２】
アンテナ素子Ｓ１３を上記突出リブＲ１３に対して位置決めする際には、アンテナ素子Ｓ１３のガイド部Ｓ１３ｂが突出リブＲ１３を挟み込むようにしてリブ側面でガイドされた状態で、アンテナ素子Ｓ１３の本体部分Ｓ１３ａが突出リブＲ１３の凹部Ｋ１３に嵌合するように位置設定した上で、アンテナ素子Ｓ１３を突出リブＲ１３の上方から被せ、アンテナ素子Ｓ１３の本体部Ｓ１３ａの裏面が突出リブＲ１３の凹部Ｋ１３の底面Ｋ１３ｃに当接するまで挿入させれば良い。この場合、例えば、上記アンテナ素子Ｓ１３の本体部Ｓ１３ａの裏面側と凹部Ｋ１３の底面Ｋ１３ｃとの間に接着剤を適用する等の固定方法を用いることで、良好な位置決め状態で固定を行える。
【００７３】
図１９は、本発明の他の実施形態における第１３実施例を示している。この第１３実施例は、前述の第２実施例と同様の構造を有するもので、アンテナ素子Ｓ１４を突出リブＲ１４のフラットな先端面Ｒ１４ｆ上に位置決め状態で載置する際には、縦壁部Ｓ１４ａ，Ｓ１４ｂを下向きにして、アンテナ素子Ｓ１４を突出リブＲ１４の上方から被せることにより、縦壁部Ｓ１４ａ，Ｓ１４ｂが突出リブＲ１４の各側面にガイドされながら、アンテナ素子Ｓ１４が突出リブＲ１４の先端側に嵌め込まれる。
この場合、例えば、第２実施例の場合と同様のクリップＦ２を用いることにより、或いは、接着剤や接着テープを適用することにより、良好な位置決め状態で固定を行える。
【００７４】
図２０は、本発明の他の実施形態における第１４実施例を示している。この第１４実施例は、前述の第１実施例と同様の構造を有するもので、アンテナ素子Ｓ１５を突出リブＲ１５に対して位置決めする際には、突出リブＲ１５のフラットな先端面Ｒ１５ｆ上にアンテナ素子Ｓ１５を載置し、張出部Ｄ１５の穴部Ｄ１５ｈを円柱部Ｃ１５の穴部Ｃ１５ｈに対して位置合わせした上で、ビスＢ１５を適用することにより、アンテナ素子Ｓ１５を突出リブＲ１５に対して、確実に位置決めし且つ固定することができる。
【００７５】
以上の実施の形態では、アンテナ基板またはアンテナ素子は何れもリフトゲート１０に取り付けられていたが、アンテナ装置を取り付ける開閉体としては、リフトゲート１０に限らず、例えばトランクリッドなど、車体後部の開口を開閉する他の開閉体であっても良い。また、かかる開閉体に限定されることなく、例えば車体ピラー部分の空間部など、車両Ｍ１の車体の一部を構成する車体部材であって非金属製のアウタパネルと非金属製のインナパネルとで成る車体部材のパネル空間内にアンテナ基板またはアンテナ素子を取り付けるようにしても良い。また、かかるパネルの材料としては、合成樹脂以外の非導電材料を使用することもできる。
【００７６】
尚、本発明は、以上の実施態様に限定されるものではなく、その要旨を逸脱しない範囲において、種々の改良あるいは設計上の変更が可能であることは言うまでもない。
【００７７】
【発明の効果】
本願の請求項１の発明に係る車両用アンテナ装置の取付構造によれば、アンテナ装置は、非金属製のリフトゲートのアウタパネルとインナパネルによってリフトゲートのウインドウ開口部の上方に形成された閉断面の空間部内において、インナパネルからアウタパネル側に向かって該アウタパネルの近傍まで突出する補強リブのアウタパネル側に取り付けられることにより、金属製の車体部材から離間するように、アウタパネルに近い側に取り付けられているので、利得特性に悪影響を及ぼす金属部材（金属製の車体部材）からより離れた箇所にアンテナを設けることで、受信性能の向上を図ることができる。また、これによりアンプの不要化も図ることが可能となる。この場合、車体後部の開口部を開閉可能に覆う非金属製のリフトゲートを利用して、特に、アンテナ装置を取り付けるための部材をわざわざ設けることなく、上記インナパネルの補強リブを利用して、アンテナ装置の取付を行うことができる。
【００８１】
また、本願請求項２の発明によれば、基本的には上記請求項１の発明と同様の効果を奏することができる。特に、上記アンテナ装置は、上記補強リブの先端に形成された凸状部によって位置決めされた状態で、上記突出部に取り付けられているので、より簡単で確実なアンテナ取付を行うことができる。しかも、アンテナ装置を位置決めするための部材を特別に設ける必要が無く、位置決め及び取付構造を簡素化でき、また、製造および組付コストの低減を図ることができる。
【００８２】
更に、本願請求項３の発明によれば、基本的には上記請求項１の発明と同様の効果を奏することができる。特に、上記アンテナ装置は、上記補強リブの先端に形成された凹状部によって位置決めされた状態で、上記突出部に取り付けられているので、より簡単で確実なアンテナ取付を行うことができる。しかも、アンテナ装置を位置決めするための部材を特別に設ける必要が無く、位置決め及び取付構造を簡素化でき、また、製造および組付コストの低減を図ることができる。
【００８３】
また更に、本願請求項４の発明によれば、基本的には上記請求項２又は３の発明と同様の効果を奏することができる。特に、上記アンテナ装置は、そのアンテナ素子が上記補強リブに直接に固定されて取り付けられているので、アンテナ素子固定用のアンテナ基板は不要とすることができ、アンテナ装置の取付構造を簡素化でき、また、製造および組付コストの低減を図ることができる。
【００８６】
また更に、本願請求項５の発明によれば、基本的には上記請求項１〜４の何れか一の発明と同様の効果を奏することができる。特に、上記アンテナ装置は、上記閉断面の空間部内において、車両に装備された電気系要素から離間するように、上記アウタパネルに近い側に取り付けられているので、利得特性および／またはノイズ特性に悪影響を及ぼす電気系要素からより離れた箇所にアンテナを設けることで、受信性能の向上を図ることができる。
【００８７】
また更に、本願請求項６の発明によれば、基本的には上記請求項５の発明と同様の効果を奏することができる。特に、アンテナの利得特性および／またはノイズ特性に悪影響を及ぼす電気系要素としてのランプ装置からより離れた箇所にアンテナを設けることで、受信性能の向上を図ることができる。
【００８８】
また更に、本願請求項７の発明によれば、基本的には上記請求項５の発明と同様の効果を奏することができる。特に、上記アンテナ装置は、上記閉断面の空間部内においてリフトゲートのウインドウガラス支持部から離間した位置に取り付けられているので、アンテナの利得特性および／またはノイズ特性に悪影響を及ぼす電気系要素としての熱線からより離れた箇所にアンテナを設けることで、受信性能の向上を図ることができる。
【図面の簡単な説明】
【図１】 本発明の実施の形態に係る車両用アンテナ装置を備えた自動車の車両後部を示す斜視図である。
【図２】 上記実施の形態に係る車両用アンテナのリフトゲートへの取付構造を示す縦断面説明図である。
【図３】 上記アンテナ装置の構成を模式的に示す説明図である。
【図４】 上記実施の形態に係るアンテナ取付構造による受信特性向上効果の比較試験結果を示すグラフである。
【図５】 本発明の他の実施形態における第１実施例を示す斜視図である。
【図６】 上記他の実施形態における第２実施例を示す斜視図である。
【図７】 上記他の実施形態における第３実施例を示す斜視図である。
【図８】 上記他の実施形態における第４実施例を示す図で、アンテナ素子固定前の状態を示す斜視図である。
【図９】 上記他の実施形態における第４実施例を示す図で、アンテナ素子固定状態を示す斜視図である。
【図１０】 上記他の実施形態における第５実施例を示す斜視図である。
【図１１】 上記他の実施形態における参考例を示す斜視図である。
【図１２】 上記他の実施形態における第６実施例を示す斜視図である。
【図１３】 上記他の実施形態における第７実施例を示す斜視図である。
【図１４】 上記他の実施形態における第８実施例を示す斜視図である。
【図１５】 上記他の実施形態における第９実施例を示す斜視図である。
【図１６】 上記他の実施形態における第１０実施例を示す斜視図である。
【図１７】 上記他の実施形態における第１１実施例を示す斜視図である。
【図１８】 上記他の実施形態における第１２実施例を示す斜視図である。
【図１９】 上記他の実施形態における第１３実施例を示す斜視図である。
【図２０】 上記他の実施形態における第１４実施例を示す斜視図である。
【符号の説明】
１…車体
２…ルーフ部
３…後端メンバ
１０…リフトゲート
１１…リフトゲートのインナパネル
１１ｒ…インナパネルの補強リブ
１２…リフトゲートのアウタパネル
１３…リフトゲートのパネル空間
１６…リヤウインドウガラス
１７…熱線
２０…アンテナ装置
２１…アンテナ基板
Ａ…アンテナパターン
Ｅ１，Ｅ２，Ｅ３…アンテナ素子
Ｋ１１〜Ｋ１３…凹部
Ｍ１…自動車
Ｒ１〜Ｒ５，Ｒ７〜Ｒ１５…突出リブ
Ｓ１〜Ｓ５，Ｓ７〜Ｓ１５…アンテナ素子
Ｔ３〜Ｔ５，Ｔ７〜Ｔ１０…突起部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a vehicle antenna device mounted on a vehicle such as an automobile, and more specifically, a non-metallic body member made up of a non-metallic outer and inner panel members as a part of the vehicle body. The present invention relates to a mounting structure for a vehicle antenna device mounted on a vehicle having the same.
[0002]
[Prior art]
As is well known, for example, in vehicles such as automobiles, the weight of the vehicle body has been further reduced in order to meet the demand for improvement in fuel consumption characteristics. About the member which comprises a part of vehicle body, it replaced with the conventional steel plate and what was formed with the synthetic resin is being put into practical use.
[0003]
Thus, when the antenna device is mounted on a vehicle in which a member constituting a part of the vehicle body is made of a synthetic resin, various devices have been made to improve the reception sensitivity.
For example, Patent Document 1 discloses an automobile antenna device mounted on a vehicle in which a vehicle compartment roof is made of resin.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 6-52211
[0005]
[Problems to be solved by the invention]
By the way, when an antenna is installed, it is known that if the installation location is close to a metal conductor, the antenna gain (gain) characteristic is adversely affected, that is, the gain is reduced. Further, it is known that if the installation location is close to an electric system element (for example, an element that can be energized such as an electric device), the gain characteristic and the noise characteristic are adversely affected. For this reason, in particular, in a vehicular antenna device installed in a conventional vehicle in which almost all of the vehicle body members are made of steel plate, in many cases, it is necessary to provide an amplifier to ensure antenna reception performance. It is.
[0006]
Even when the antenna device is installed in a vehicle in which a member constituting a part of the vehicle body is made of a synthetic resin as described above, the antenna can be avoided so as to avoid the adverse effects on the gain characteristics or noise characteristics as much as possible. It is necessary to pay attention to the installation location. Further, from the viewpoint of productivity and space saving, it is required to be able to mount with a simple structure as much as possible.
[0007]
Therefore, the present invention avoids adverse effects on the gain characteristics or noise characteristics of the antenna as much as possible when mounting an antenna device on a vehicle in which a member constituting a part of the vehicle body is made of non-metal, and more The basic object is to enable the antenna device to be mounted with a simple configuration.
[0008]
[Means for Solving the Problems]
  For this reason, the mounting structure of the vehicle antenna device according to the present invention comprises a non-metallic body member formed by joining a metal body member, a non-metallic outer panel, and a non-metallic inner panel at least at the peripheral edges thereof. A vehicle antenna device mounting structure equipped on a vehicle having a vehicle body member,The non-metallic vehicle body member is a lift gate that covers an opening formed at a rear portion of the vehicle body so as to be openable and closable, and includes an outer panel that forms an outer plate of the lift gate and an inner panel that forms an inner plate of the lift gate. A space portion with a closed cross section is formed above the window opening of the lift gate, and a vehicle interior space is extended inward of the inner panel corresponding to the space portion with the closed cross section. Among the outer panel and the inner panel that form the portion, the inner panel is formed with a reinforcing rib that protrudes from the inner panel toward the outer panel to the vicinity of the outer panel.The antenna device isBy being attached to the outer panel side of the reinforcing rib,Formed between the outer panel and the inner panel.Closed sectionIn the space, it is attached to the side close | similar to the said outer panel so that it may space apart from the said metal vehicle body member.
[0011]
  in this case,the aboveReinforcement ribA convex portion is formed at the tip of the antenna device, and the antenna device is positioned by the convex portion in the state described above.Reinforcement ribCan be attached to.
  Or the aboveReinforcement ribA concave portion is formed at the tip of the antenna device, and the antenna device is positioned by the concave portion in the state described above.Reinforcement ribCan be attached to.
[0012]
  In the above case, the antenna element of the antenna device isReinforcement ribCan be fixed directly to the mounting.
[0014]
In the above case, it is preferable that the antenna device is attached to the side closer to the outer panel so as to be further away from the electric system element mounted on the vehicle in the space portion of the closed cross section.
  In this case, the electric system element mounted on the vehicle may be a lamp device disposed on the lift gate.
  Alternatively, the electric system element mounted on the vehicle may be a heat ray disposed on the window glass of the lift gate. In this case, the antenna device isSpace section of the above closed sectionIt is more preferable that it is attached at a position spaced apart from the window glass support inside.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a vehicle rear portion of an automobile provided with a vehicle antenna device according to the present embodiment. FIG. 2 is a longitudinal sectional explanatory view showing a structure for mounting the vehicle antenna to the vehicle (specifically, to the lift gate).
As shown in FIG. 1, in the automobile M <b> 1 according to the present embodiment, a lift gate 10 is provided as an opening / closing body that covers an opening that opens the rear part of the passenger compartment rearward so as to be openable and closable. An antenna is attached. In FIG. 1, the position of the antenna mounting portion of the lift gate 10 is schematically shown by hatching.
[0016]
The opening / closing body that covers the rear opening of the vehicle body as described above may be referred to by various other names such as a rear gate, a tail gate, or a back door in addition to the above-described “lift gate”. In the specification, such opening and closing bodies are collectively referred to as “lift gates”.
[0017]
2, the lift gate 10 is formed by combining the outer panel 12 constituting the gate outer plate and the inner panel 11 constituting the gate inner plate, and joining the peripheral portions thereof. The window glass 16 is mounted in a state where the window glass 16 is supported by the flange portion 10f. In this embodiment, the window glass 16 is provided with a rear defogger hot wire 17 (see FIG. 1).
[0018]
A vehicle body rear end member 3 extending in the vehicle width direction is provided at the rear end upper portion of the vehicle body 1 of the automobile M1 (that is, the rear end side of the roof portion 2). A hinge mechanism is attached to the member 3. The lift gate 10 is supported by the hinge mechanism (not shown) so as to be pivotable in the vertical direction, and opens and closes the opening at the rear of the passenger compartment.
[0019]
In the present embodiment, at least the outer panel 12 and the inner panel 11 of the lift gate 10 are both manufactured by molding using a synthetic resin material as a non-metallic material. On the other hand, the vehicle body 1 including the roof portion 2 and the rear end member 3 is mainly made of a steel plate as in the conventional structure.
In the upper part of the lift gate 10 (see hatched hatching in FIG. 1), the antenna device 20 (see FIG. 3 described later) is placed in the space 13 (panel space) formed by the outer panel 12 and the inner panel 11. An antenna substrate 21 is disposed.
[0020]
The antenna substrate 21 is formed in a plate shape using a non-conductive material such as a resin material. As the structure for fixing the antenna substrate 21 in the panel space 13, various known ones can be applied. In the example of FIG. 2, the antenna substrate 21 is directed from the inner panel 11 toward the outer panel 12. For example, an adhesive is used to fix the tip of the reinforcing rib 11r provided so as to protrude. Of course, other known means such as screwing may be used instead of the adhesive.
[0021]
FIG. 3 is an explanatory diagram schematically showing the configuration of the antenna device according to the present embodiment. As shown in FIG. 3, the antenna device 20 is configured by disposing an antenna pattern A formed by combining first, second and third antenna elements E1, E2 and E3 on an antenna substrate 21. Yes.
[0022]
The first antenna element E1 is a relatively short straight antenna element, and a base end portion of the first antenna element E1 is coupled to the feeding portion 22. A power supply line 23 is connected to the power supply unit 22, and the power supply line 23 is connected to a coaxial cable 24 via a vehicle body side ground (ground) unit 25. The coaxial cable 24 is, for example, a low-capacity type, and the structure thereof is not specifically shown, but is the same as a conventionally known one, and includes an inner conductor and an outer conductor.
[0023]
The power supply line 23 is connected from the vehicle body side to the antenna substrate 21 side while being covered with a flexible bellows-like grommet member 28 (see FIG. 2) formed of, for example, rubber or soft resin. Thus, the opening and closing operation of the lift gate 10 can be followed without any trouble.
[0024]
The second and third antenna elements E2 and E3 are branched from the tip of the first antenna element E1 to the left and right, are folded back at an angle of approximately 90 degrees, and then sandwich the first antenna E1 so as to sandwich the FM coil. Portions E2c and E3c are formed.
In this antenna A, FM broadcast waves are received by the FM coil portions E2c and E3c, and AM broadcast waves are received by the entire length of the antenna pattern A (first antenna element E1 + second antenna element E2 + third antenna element E3). It has become so.
[0025]
In the present embodiment, the protruding height of the reinforcing rib 11r to which the antenna substrate 21 is fixed is such that the antenna substrate 21 fixed to the tip of the reinforcing rib 11r has a metal body member (in this case, It is set so as to be as far as possible from the vehicle body roof portion 2 and the rear end member 3) and as close to the outer panel 12 as possible. Moreover, the antenna substrate 21 is fixed as far back as possible on the reinforcing rib 11r (to the right in FIG. 2) so as to be as far as possible from the vehicle body roof portion 2 and the rear end member 3.
[0026]
The antenna device 20 in which the antenna substrate 21 (that is, the antenna A) was installed in this way was tested to confirm the effect of improving its reception characteristics (antenna gain). In this test, a case where the antenna substrate 21 is attached to the inner surface side of the inner panel 11 in the panel space 13 (see the two-dot chain line display in FIG. 2) was used as a comparative example.
[0027]
FIG. 4 shows test results for FM reception characteristics. In the graph of FIG. 4, a curve Y1 indicates the gain in the embodiment of the present invention, and a curve Y2 indicates the gain in the comparative example. As can be clearly seen from the graph of FIG. 4, when the antenna mounting structure according to the embodiment of the present invention is adopted, the reception characteristic is improved by 2 to 4 dBd in the frequency band of the FM broadcast wave as compared with the comparative example. Was recognized.
[0028]
A similar test was performed for AM reception characteristics. The measurement results are as shown in Table 1. When the antenna mounting structure according to the embodiment of the present invention is adopted, the reception frequency of 1.5 to 2 dBd in the AM broadcast wave frequency band as compared with the comparative example. Improved properties were observed.
[0029]
[Table 1]

[0030]
As described above, the antenna substrate 21 (that is, the antenna A) is as close as possible to the outer panel 12 in the panel space 13 so as to be separated from the metal vehicle body members 2 and 3 (vehicle body side ground conductor) as much as possible. By attaching to the antenna A, the antenna A can be provided at a location further away from the metal members 2 and 3 (metal body members) that adversely affect the gain characteristics, and the reception performance can be improved.
[0031]
This also makes it possible to eliminate the need for an amplifier. If the amplifier can be dispensed with, it is possible to reduce the weight of the antenna device, the manufacturing cost, and the development man-hours on the development side.
[0032]
Further, the antenna substrate 21 including the antenna A and the power feeding portion 22 is disposed inside the inner panel 11 and the outer panel 12 (that is, in the panel space 13) made of a nonconductive material (synthetic resin material). Without impairing the reception performance, the antenna device 20 can be prevented from being seen from the outside of the vehicle M1, and can contribute to the improvement of the appearance of the vehicle M1.
[0033]
Furthermore, as described above, the antenna substrate 21 is located as close as possible to the outer panel 12 in the panel space 13 so as to be as far away as possible from the heat wire 17 of the rear defogger as an electric system element mounted on the vehicle. In the panel space 13, the antenna A is disposed at a position further away from the electric system element 17 that adversely affects the gain characteristic and / or the noise characteristic by being disposed at a position separated from the window glass support portion 10 f of the lift gate 10. The reception performance can be further improved.
[0034]
Furthermore, since the antenna substrate 21 is attached to the protruding portion 11r (reinforcing rib) protruding from the inner panel 11 toward the outer panel 12, the inner panel can be provided without specially providing a member for attaching the antenna substrate 21. The antenna substrate 21 can be attached using the 11 reinforcing ribs 11r. Thereby, the mounting structure of the antenna device 20 can be simplified, and the manufacturing and assembly costs can be reduced.
[0035]
Instead of this, a protruding portion (for example, a reinforcing rib) may be provided so as to protrude from the outer panel 12 toward the inner panel 11 side, and the antenna substrate 21 may be fixed to the tip portion thereof. Further, the antenna substrate 21 may be fixed directly to the inner surface of the outer panel 12. Further, the antenna substrate 21 may be fixed using other known means such as screwing.
[0036]
Alternatively, it is also possible to provide protrusions (for example, reinforcing ribs) on each of the outer panel 12 and the inner panel 11 and attach the antenna substrate 21 so as to be sandwiched between the both protrusions. In this case, a more reliable and firm antenna attachment can be performed.
[0037]
Further, in the present embodiment, the antenna device 20 can be attached by using the lift gate 10 as a non-metallic opening / closing body that covers the opening formed in the vehicle body so as to be openable / closable. By attaching the antenna substrate 21 (that is, the antenna A) to the upper end portion in the panel space 13 of 10 as close as possible to the outer panel 12 so as to be as far away as possible from the metal body members 2 and 3 (vehicle body side ground conductor). An antenna A is attached to the side. As a result, the antenna A can be provided at a location further away from the metal members 2 and 3 (metal body members) that adversely affect the gain characteristics, and the reception performance can be improved.
[0038]
In addition, when a lamp device (a so-called high-mount type stop lamp or turn signal lamp) whose installation position is set to be higher than usual is provided on the rear end side of the vehicle, this high-mount type lamp The device becomes an electrical component that adversely affects the gain and / or noise characteristics of the antenna.
Therefore, in this case, the required reception performance can be ensured by providing the antenna at a location further away from the high-mount type lamp device.
[0039]
In the above-described embodiment, the antenna elements E1, E2, and E3 are disposed on the antenna substrate 21 to form the antenna pattern A, and the antenna substrate 21 is fixed in the panel space 13. Instead, the antenna element can be directly fixed without using the antenna substrate 21.
[0040]
Next, another embodiment of the present invention will be described. In addition, in the following description, the same code | symbol is attached | subjected about what has the same structure as the case in embodiment mentioned above in FIGS. 1-3, and performs the same effect | action, and the further description is abbreviate | omitted.
FIG. 5 shows a first example in another embodiment of the present invention. In the first embodiment, the side surface of a protruding rib R1 (for example, a reinforcing rib) provided so as to protrude from either the inner panel 11 or the outer panel 12 toward the other is fixed in parallel with the rib R1. A cylindrical portion C1 for use is integrally provided. The front end surface R1f of the protruding rib R1 is formed flat.
[0041]
More preferably, the fixing cylindrical portion C1 as described above is integrally formed when the rib R1 is formed. Alternatively, after the rib R1 is formed, the rib R1 can be integrally fixed to the rib R1 by adhesion or welding. A hole C1h having a predetermined diameter is provided at the approximate center of the cylindrical part C1.
[0042]
On the other hand, the strip-shaped antenna element S1 is formed with a projecting portion D1 projecting to the side of the antenna element S1 at a position corresponding to the fixing column portion B1, and is substantially at the center of the projecting portion D1. A hole D1h having a predetermined diameter is formed.
Then, the antenna element S1 is placed on the flat front end surface R1f of the protruding rib R1, the hole D1h of the projecting portion D1 is aligned with the hole C1h of the cylindrical portion C1, and then the screw B1 is applied. By doing so, the antenna element S1 can be reliably fixed on the front end surface R1f of the protruding rib R1.
[0043]
Thus, according to the present embodiment, the antenna element S1 is directly fixed to the protruding rib R1 provided so as to protrude from either the inner panel 11 or the outer panel 12 toward the other. The antenna substrate for fixing the antenna element can be eliminated, and the mounting structure of the antenna device can be simplified. Further, the manufacturing and assembly costs can be reduced.
In this case, the antenna device can be attached using the reinforcing rib R1 of the outer panel 12 and / or the inner panel 11 without providing a member for attaching the antenna device.
[0044]
FIG. 6 shows a second example in another embodiment of the present invention. In the second embodiment, either one of the inner panel 11 and the outer panel 12 is provided with a protruding rib R2 (for example, a reinforcing rib) having a predetermined width so as to protrude toward the other side. The side portions are provided with vertical wall portions S2a and S2b separated by a distance in the width direction substantially equal to the width of the protruding rib R2. These vertical wall portions S2a and S2b are preferably set so as to be separated from each other also in the longitudinal direction of the antenna element S2. Such vertical wall portions S2a and S2b can be provided by forming projecting portions projecting sideways on both sides of the antenna element S2 and bending these projecting portions substantially at a right angle.
[0045]
When the antenna element S2 is placed on the flat front end surface R2f of the protruding rib R2, the vertical wall is formed by covering the antenna element S2 from above the protruding rib R2 with the vertical wall portions S2a and S2b facing downward. While the portions S2a and S2b are guided by the side surfaces of the projecting rib R2, the antenna element S2 is fitted to the distal end side of the projecting rib R2.
And antenna element S2 is fixed on front end surface R2f of projecting rib R2 using clip F2 made into a bowl shape, for example.
[0046]
The clip F2 is made of, for example, plastic, and includes a groove portion F2g having an inverted U-shaped cross section that opens downward. The width of the groove portion F2g is set slightly smaller than the width of the protruding rib R2. When the projecting ribs R2 are fitted so as to be sandwiched, they are fitted with a certain tightening allowance. By this fitting force, the antenna element S2 is securely fixed on the front end surface R2f of the protruding rib R2. Instead of using such a clip F2, it may be fixed by other means such as application of an adhesive or an adhesive tape.
[0047]
FIG. 7 shows a third example in another embodiment of the present invention. In the third embodiment, for example, a prismatic protrusion T3 having the same width as the protruding rib R3 is integrally formed at a predetermined portion of the protruding rib R3 (for example, a reinforcing rib) having a predetermined width.
On the other hand, a rectangular or square attachment portion G3 having a side larger than the width of the antenna element S3 is provided in the middle of the belt-like antenna element S3, and the attachment portion G3 is fitted to the protrusion T3. A mating rectangular or square mounting hole G3h is formed.
[0048]
When the antenna element S3 is fixed on the flat front end surface R3f of the protruding rib R3, an adhesive is applied to the front end surface R3f or the back surface side of the antenna element S3, and the mounting portion of the antenna element S3 is provided. After positioning the mounting hole G3h of G3 so that it fits into the protrusion T3 of the protruding rib R3, the antenna element S3 is placed from above the protruding rib R3, and the back surface of the antenna element S3 is brought into contact with the tip end surface R3f. Apply pressure. Thereby, reliable and firm fixing is performed by the action of the adhesive.
[0049]
8 and 9 show a fourth example according to another embodiment of the present invention. The fourth embodiment corresponds to a modification of the third embodiment, and instead of applying an adhesive for fixing the antenna element, the protrusion is melted and fixed by heat. In the fourth embodiment, as shown in FIG. 8, the projecting rib R4 has a projection T4 similar to that in the third embodiment T3, and the antenna element S4 is the same as that in the third embodiment G3 and The same mounting portion G4 and mounting hole G4h as G3h are provided.
[0050]
When fixing the antenna element S4 on the flat front end surface R4f of the protruding rib R4, the position was set so that the mounting hole G4h of the mounting portion G4 of the antenna element S4 fits into the protruding portion T4 of the protruding rib R4. The antenna element S4 is covered from above the protruding rib R4, and the back surface of the antenna element S4 is brought into contact with the front end surface R4f.
In this state, heat is applied to the projecting portion T4, and the projecting portion T4 is melted and crushed as shown in FIG. 9, so that the mounting portion G4 of the antenna element S4 is very much on the distal end surface R4f of the projecting rib R4. It is designed to be firmly fixed.
[0051]
FIG. 10 shows a fifth example in another embodiment of the present invention. The fifth embodiment corresponds to a modification of the third embodiment, and is provided with a folded portion in a mounting hole formed in the mounting portion of the antenna element to prevent backlash and dropping. .
In this fifth embodiment, the protruding rib R5 has a projection T5 similar to that in the third embodiment T3, and the antenna element S5 includes the mounting portion G5 and G3 and G3h in the third embodiment. A mounting hole G5h is provided.
[0052]
However, in the fifth embodiment, the folded portion J5 is integrally provided so as to form a pair on at least a part of the inner peripheral portion of the mounting hole G5h (in the present embodiment, two opposing sides). Yes. Such a folded portion J5 can be obtained by performing a folding process so as to be folded without removing the cut portion in the cutting process when forming the attachment hole G5h.
[0053]
When fixing the antenna element S5 on the flat front end surface R5f of the protruding rib R5, the position was set so that the mounting hole G5h of the mounting portion G5 of the antenna element S5 fits into the protruding portion T5 of the protruding rib R5. Above, the antenna element S5 is covered from above the protruding rib R5, and the back surface of the antenna element S5 is brought into contact with the front end surface R5f. At this time, the folded portion J5 is expanded against the elastic force.
In other words, in the fitting state in which the mounting hole G5h is fitted to the protruding portion T5 of the protruding rib R5, the biasing force based on the elasticity of the folded portion J5 acts on the fitting portion, and the antenna element S5 is loose. Are controlled, and dropout is surely prevented. In this case, an adhesive may be used in combination.
[0054]
  FIG. 11 shows another embodiment of the present invention.referenceAn example is shown. thisreferenceIn the example, one of the inner panel 11 and the outer panel 12 (inner panel 11 in the example of FIG. 11) is provided with a protruding rib R6 (for example, a reinforcing rib) having a predetermined width so as to protrude toward the other. The outer panel 12 is also provided with a protruding rib R6 ′ (for example, a reinforcing rib) having a predetermined width so as to protrude toward the inner panel 11 side. More preferably, the protruding rib R6 'on the outer panel 12 side and the protruding rib R6 on the inner panel 11 side are set so that their extending directions are substantially orthogonal. The protruding height of the protruding rib R6 'on the outer panel 12 side is set to be slightly smaller than that of the protruding rib R6 on the inner panel 12 side.
[0055]
For example, two prismatic protrusions T6 having the same width as the protruding rib R6 are integrally formed on the protruding rib R6 having a predetermined width on the inner panel 11 side. These two protrusions T6 are disposed at a predetermined distance in the longitudinal direction of the protruding rib R6. The protruding rib R6 'on the outer panel 12 side is set so as to be positioned between the protrusions T6 on the inner panel 11 side when the inner and outer panels 11 and 12 are combined.
On the other hand, an arc-shaped portion S6c having a predetermined length is provided in the middle of the strip-shaped antenna element S6. The length of the arcuate portion S6c is set to be shorter than the distance between the two protruding portions T6 of the protruding rib R6.
[0056]
When the antenna element S6 is disposed in the panel space 13, the antenna element S6 is positioned so that the arc-shaped portion S6c is positioned between the pair of protrusions T6, and the flat portions on both sides of the arc-shaped portion S6c are arranged. After the inner portion is placed on the surface T6f of the protrusion T6, the inner panel 11 and the outer panel 12 are assembled so that the protruding rib R6 ′ on the outer panel 12 side is located between the two protrusions T6 on the inner panel 11 side. Fit.
As a result, the antenna element S6 is securely and firmly fixed so as to be sandwiched between the tip of the protruding rib R6 of the inner panel 11 and the tip of the protruding rib R6 ′ on the outer panel 12 side. ing.
[0057]
The embodiment shown in FIGS. 12 to 20 has an antenna element directly (without using an antenna substrate) on a protruding rib provided so as to protrude from either one of the inner panel 11 or the outer panel 12 toward the other. ) In the case of fixing, the antenna element positioning method will be mainly described.
[0058]
  FIG. 12 shows a second embodiment of the present invention.6An example is shown. This first6In the embodiment, on the tip side of the protruding rib 7, the aboveReference shown in Fig. 11A pair of prismatic protrusions T7 similar to those in the example are integrally formed.
  On the other hand, the strip-shaped antenna element S7 is provided with a pair of projecting portions D7 projecting in a U shape in plan view, corresponding to the prismatic projection T7. The pair of overhang portions D7 are preferably set so as to open in opposite directions.
[0059]
When positioning the antenna element S7 with respect to the protruding rib R7, the antenna element S7 is protruded after setting the position so that the protruding portion D7 of the antenna element S7 fits the protruding portion T7 of the protruding rib R7. Covering from above the rib R7, the back surface of the antenna element S7 may be brought into contact with the tip surface R7f.
In this case, for example, by using a fixing method such as applying an adhesive to the flat front end surface R7f of the protruding rib R7 or the back surface side of the antenna element S7, the fixing can be performed in a favorable positioning state.
[0060]
As described above, the antenna element S7 is attached to the protruding rib R7 in a state where the antenna element S7 is positioned by the convex portion (projecting portion T7) formed at the tip of the protruding rib R7. Installation can be performed. Moreover, it is not necessary to provide a special member for positioning the antenna element S7, the positioning and mounting structure can be simplified, and manufacturing and assembly costs can be reduced.
[0061]
  FIG. 13 shows a second embodiment in another embodiment of the present invention.7An example is shown. This first7In the embodiment, the above6The projecting rib R5 provided on one of the inner panel 11 and the outer panel 12 corresponds to one modification of the embodiment.6It has a projection T8 similar to that in the embodiment T7.
  On the other hand, the strip-shaped antenna element S8 corresponds to the prismatic protrusion T8 in a state where its flat surface is parallel to the side surface of the protruding rib R8, and extends in a U shape in plan view. The overhanging portion D8 is provided. Preferably, the pair of overhang portions D8 is the first6As in the case of the embodiment, the openings are set to open in opposite directions.
[0062]
When positioning the antenna element S8 with respect to the projecting rib R8, the antenna element S8 projects after the overhanging portion D8 of the antenna element S8 is positioned so as to be fitted to the projecting portion T8 of the projecting rib R8. Covering from above the rib R8, the lower end of the antenna element S8 may be brought into contact with the front end surface R8f of the protruding rib R8.
In this case, for example, by using a fixing method such as applying an adhesive between the back surface side of the projecting portion D8 of the antenna element S8 and the surface of the prismatic protrusion T8, the antenna element S8 can be fixed in a favorable positioning state. .
[0063]
  FIG. 14 shows a second embodiment of the present invention.8An example is shown. This first8The embodiment has the same structure as that of the third embodiment described above, and a rectangular columnar protrusion T9 provided with a rectangular hole G9h of the mounting portion G9 provided in the antenna element S9 on the tip side of the protruding rib R9. It is possible to perform accurate positioning by being fitted to. As a method for fixing the antenna element S9, as in the case of the third embodiment, it is possible to apply an adhesive between the front end surface R9f of the protruding rib R9 and the back surface of the strip-shaped antenna element S9.
[0064]
  FIG. 15 shows a second embodiment in another embodiment of the present invention.9An example is shown. This first9The embodiment is8This corresponds to one modification of the embodiment.
  This first9In the embodiment, the pair of protrusions T10 provided on the front end side of the protruding rib R10 has a two-stage structure, and the antenna element S10 is specifically fixed to the upper surface T10c of the lower protrusion T10b.
[0065]
The antenna element S10 is provided with a pair of attachment portions G10 corresponding to the protrusions T10, and a rectangular hole G10h formed in each attachment portion G10 is fitted into the upper protrusion T10a of the protrusion T10. Therefore, accurate positioning can be performed. As a method for fixing the antenna element S10, it is possible to apply an adhesive between the upper surface T10c of the lower projection T10b and the back surface of the strip-shaped antenna element S10.
[0066]
  FIG. 16 shows a second embodiment in another embodiment of the present invention.10An example is shown. This first10In the embodiment, a recess K11 is formed on the leading end side of the protruding rib R11.
  On the other hand, the antenna element S11 is configured by connecting a pair of parallel portions S11a and S11b, which are parallel to the side surface of the protruding rib R11 and arranged at a distance equal to or slightly wider than the width of the rib R11, by a connecting portion S11c. ing.
[0067]
When positioning the antenna element S11 with respect to the protruding rib R11, the antenna element S11 is positioned so that the connecting portion S11c of the antenna element S11 fits into the concave portion K11 of the protruding rib R11, and then the antenna element S11 is moved to the protruding rib R11. Is inserted until the back surface of the connecting portion S11c of the antenna element S11 contacts the bottom surface K11c of the recess K11 of the protruding rib R11.
In this case, for example, by using a fixing method such as applying an adhesive between the back surface side of the connecting portion S11c and the bottom surface K11c of the recess K11, the fixing can be performed in a favorable positioning state.
[0068]
As described above, the antenna element S11 is attached to the protruding rib R11 in a state where the antenna element S11 is positioned by the concave portion K11 formed at the tip of the protruding rib R11. Can do. In addition, it is not necessary to provide a special member for positioning the antenna element S11, the positioning and mounting structure can be simplified, and the manufacturing and assembly costs can be reduced.
[0069]
  FIG. 17 shows a second embodiment in another embodiment of the present invention.11An example is shown. This first11In the embodiment, a pair of recesses K12 is formed on the front end side of the protruding rib R12 with a predetermined interval in the longitudinal direction.
  On the other hand, the antenna element S12 is formed with an overhanging portion D12 that is arranged in parallel with the tip end surface R12f of the protruding rib R12 and protrudes in a U shape in plan view. The projecting portion D12 is formed so as to be bent at a right angle from the parallel portion D12b disposed in parallel with the extending direction of the main body portion S12a of the antenna element S12 and the front and rear ends of the parallel portion D12b. It is comprised with the connection part D12c connected integrally with main-body part S12a. The width of the connecting portion D12c is set slightly smaller than the width of the concave portion K12 of the protruding rib R12.
[0070]
When positioning the antenna element S12 with respect to the protruding rib R12, the antenna element S12 is positioned so that the connecting portion D12c of the antenna element S12 fits into the concave portion K12 of the protruding rib R12, and then the antenna element S12 is moved to the protruding rib R12. Is inserted until the back surface of the connecting portion D12c of the antenna element S12 contacts the bottom surface K12c of the concave portion K12 of the protruding rib R12.
In this case, for example, by using a fixing method such as applying an adhesive between the back surface side of the connecting portion D12c and the bottom surface K12c of the recess K12, the fixing can be performed in a favorable positioning state.
[0071]
  FIG. 18 shows a second embodiment in another embodiment of the present invention.12An example is shown. This first12In the embodiment, a recess K13 is formed on the leading end side of the protruding rib R13.
  On the other hand, the antenna element S13 has a width slightly smaller than the width of the recess K13, and is arranged in a direction orthogonal to the extending direction of the protruding rib R13. The antenna element S13 is provided with a pair of guide portions S13b extending in a direction orthogonal to the main body portion S13a (that is, the extending direction of the protruding rib R13). The interval between the guide portions S13b is set to be slightly larger than the width of the protruding rib R13.
[0072]
When positioning the antenna element S13 with respect to the protruding rib R13, the main body portion S13a of the antenna element S13 is in a state where the guide portion S13b of the antenna element S13 is guided by the rib side surface so as to sandwich the protruding rib R13. After setting the position so as to fit into the recess K13 of the protruding rib R13, the antenna element S13 is covered from above the protruding rib R13, and the back surface of the main body S13a of the antenna element S13 is placed on the bottom surface K13c of the recess K13 of the protruding rib R13. What is necessary is just to insert until it contacts. In this case, for example, by using a fixing method such as applying an adhesive between the back surface side of the main body S13a of the antenna element S13 and the bottom surface K13c of the recess K13, the antenna element S13 can be fixed in a favorable positioning state.
[0073]
  FIG. 19 shows a second embodiment in another embodiment of the present invention.13An example is shown. This first13The embodiment has the same structure as that of the second embodiment, and when the antenna element S14 is placed on the flat front end surface R14f of the projecting rib R14 in a positioning state, the vertical wall portions S14a and S14b are used. The antenna element S14 is fitted on the distal end side of the projecting rib R14 while the vertical wall portions S14a and S14b are guided by the side surfaces of the projecting rib R14 by covering the antenna element S14 from above the projecting rib R14. .
  In this case, for example, by using the same clip F2 as in the case of the second embodiment, or by applying an adhesive or an adhesive tape, the fixing can be performed in a good positioning state.
[0074]
  FIG. 20 shows a second embodiment in another embodiment of the present invention.14An example is shown. This first14The embodiment has the same structure as that of the first embodiment described above. When positioning the antenna element S15 with respect to the protruding rib R15, the antenna element S15 is placed on the flat front end surface R15f of the protruding rib R15. After mounting and aligning the hole D15h of the overhanging portion D15 with respect to the hole C15h of the cylindrical portion C15, by applying the screw B15, the antenna element S15 can be securely attached to the protruding rib R15. It can be positioned and fixed.
[0075]
In the above embodiments, the antenna substrate or the antenna element is both attached to the lift gate 10. However, the opening / closing body to which the antenna device is attached is not limited to the lift gate 10, and for example, an opening at the rear of the vehicle body such as a trunk lid. Other opening / closing bodies that open and close the door may be used. Further, the present invention is not limited to such an opening / closing body, and is a vehicle body member constituting a part of the vehicle body of the vehicle M1, such as a space portion of the vehicle body pillar portion, and includes a non-metallic outer panel and a non-metallic inner panel. An antenna substrate or an antenna element may be attached in the panel space of the vehicle body member. Moreover, as a material for such a panel, a non-conductive material other than a synthetic resin can be used.
[0076]
In addition, this invention is not limited to the above embodiment, It cannot be overemphasized that a various improvement or a design change is possible in the range which does not deviate from the summary.
[0077]
【The invention's effect】
  According to the mounting structure for a vehicle antenna device according to the invention of claim 1 of the present application, the antenna device is made of non-metal.Lift gateOuter panel and inner panelBy above the window opening of the lift gateFormed inClosed section spaceInBy being attached to the outer panel side of the reinforcing rib that protrudes from the inner panel toward the outer panel side to the vicinity of the outer panel,Since it is mounted on the side closer to the outer panel so as to be separated from the metal body member, it is possible to receive by providing an antenna at a location further away from the metal member (metal body member) that adversely affects the gain characteristics. The performance can be improved. This also makes it possible to eliminate the need for an amplifier.In this case, using a non-metallic lift gate that covers the opening at the rear of the vehicle body so as to be openable and closable, in particular, without providing a member for attaching the antenna device, using the reinforcing rib of the inner panel, The antenna device can be attached.
[0081]
  MaTheClaim of this application2According to the invention of1The same effects as those of the invention can be obtained. In particular, the antenna device isReinforcement ribSince it is attached to the projecting portion in a state of being positioned by the convex portion formed at the tip of the antenna, it is possible to perform the antenna attachment more easily and reliably. In addition, it is not necessary to provide a special member for positioning the antenna device, the positioning and mounting structure can be simplified, and the manufacturing and assembly costs can be reduced.
[0082]
FurtherAnd claims of the present application3According to the invention of1The same effects as those of the invention can be obtained. In particular, the antenna device isReinforcement ribSince it is attached to the projecting portion in a state of being positioned by the concave portion formed at the tip of the antenna, it is possible to perform simpler and more reliable antenna attachment. In addition, it is not necessary to provide a special member for positioning the antenna device, the positioning and mounting structure can be simplified, and the manufacturing and assembly costs can be reduced.
[0083]
  Still further, the present claims4According to the invention of2 or 3The same effects as those of the invention can be obtained. In particular, the antenna device has the antenna element described above.Reinforcement ribSince the antenna substrate for fixing the antenna element is unnecessary, the mounting structure of the antenna device can be simplified, and the manufacturing and assembly costs can be reduced. it can.
[0086]
  Still further, the present claims5According to the invention ofAny one of 1-4The same effects as those of the invention can be obtained. In particular,Since the antenna device is mounted on the side close to the outer panel so as to be separated from the electric system element mounted on the vehicle in the space portion of the closed cross section, the antenna device adversely affects the gain characteristic and / or the noise characteristic. Provide an antenna at a location farther away from electrical componentsAs a result, the reception performance can be improved.
[0087]
  Still further, the present claims6According to the invention of5The same effects as those of the invention can be obtained. In particular, the reception performance can be improved by providing the antenna at a location further away from the lamp device as an electric system element that adversely affects the gain characteristics and / or noise characteristics of the antenna.
[0088]
  Still further, the present claims7According to the invention of5The same effects as those of the invention can be obtained. In particular, the antenna device isClosed section spaceSince it is mounted at a position away from the window glass support portion of the lift gate, the antenna is provided at a location further away from the heat ray as an electric system element that adversely affects the gain characteristics and / or noise characteristics of the antenna. The reception performance can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a vehicle rear portion of an automobile provided with a vehicle antenna device according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view illustrating a structure for mounting the vehicle antenna according to the embodiment to a lift gate.
FIG. 3 is an explanatory diagram schematically showing a configuration of the antenna device.
FIG. 4 is a graph showing a comparison test result of the reception characteristic improvement effect by the antenna mounting structure according to the embodiment.
FIG. 5 is a perspective view showing a first example according to another embodiment of the present invention.
FIG. 6 is a perspective view showing a second example of the other embodiment.
FIG. 7 is a perspective view showing a third example of the other embodiment.
FIG. 8 is a diagram showing a fourth example of the other embodiment, and is a perspective view showing a state before the antenna element is fixed;
FIG. 9 is a diagram showing a fourth example of the other embodiment, and is a perspective view showing an antenna element fixed state;
FIG. 10 is a perspective view showing a fifth example of the other embodiment.
FIG. 11 is another embodiment of the above.referenceIt is a perspective view which shows an example.
FIG. 12 shows the first embodiment in the other embodiment.6It is a perspective view which shows an Example.
FIG. 13 shows the first embodiment in the other embodiment.7It is a perspective view which shows an Example.
FIG. 14 shows the second embodiment in the other embodiment.8It is a perspective view which shows an Example.
FIG. 15 shows the first in the other embodiment.9It is a perspective view which shows an Example.
FIG. 16 shows the first embodiment in the other embodiment.10It is a perspective view which shows an Example.
FIG. 17 shows a second embodiment in the other embodiment.11It is a perspective view which shows an Example.
FIG. 18 shows the first embodiment in the other embodiment.12It is a perspective view which shows an Example.
FIG. 19 shows the first embodiment in the other embodiment.13It is a perspective view which shows an Example.
FIG. 20 shows the first in the other embodiment.14It is a perspective view which shows an Example.
[Explanation of symbols]
  1 ... Body
  2 ... Roof part
  3 ... Rear end member
  10 ... lift gate
  11 ... Inner panel of lift gate
  11r ... Inner panel reinforcement rib
  12 ... Outer panel of lift gate
  13 ... Lift gate panel space
  16 ... Rear window glass
  17 ... hot wire
  20 ... Antenna device
  21 ... Antenna substrate
  A ... Antenna pattern
  E1, E2, E3 ... Antenna elements
  K11-K13 ... concave portion
  M1 ... car
  R1~ R5, R7~ R15 ... protruding rib
  S1~ S5, S7~ S15 ... antenna element
  T3~ T5, T7~ T10 ... protrusion

Claims (7)

A vehicle antenna device mounted on a vehicle having a metal vehicle body member, and a nonmetal vehicle body member formed by joining a nonmetal outer panel and a nonmetal inner panel at least at peripheral portions thereof. Mounting structure,
The non-metallic vehicle body member is a lift gate that covers an opening formed at the rear of the vehicle body so as to be openable and closable,
The outer panel that forms the outer plate of the lift gate and the inner panel that forms the inner plate of the lift gate form a closed section space above the window opening of the lift gate, and the closed section space section. The interior space of the inner panel corresponding to
Among the outer panel and the inner panel that form the space portion of the closed cross section, the inner panel is formed with a reinforcing rib that protrudes from the inner panel toward the outer panel to the vicinity of the outer panel.
The antenna device is attached to the outer panel side of the reinforcing rib, so that the outer panel is separated from the metal body member in a closed cross-sectional space formed between the outer panel and the inner panel. A mounting structure for a vehicular antenna device, wherein the mounting structure is mounted on a side closer to the vehicle. The vehicle according to claim 1 , wherein a convex portion is formed at a tip of the reinforcing rib , and the antenna device is attached to the reinforcing rib in a state of being positioned by the convex portion. Antenna device mounting structure. The vehicular antenna according to claim 1 , wherein a concave portion is formed at a tip of the reinforcing rib , and the antenna device is attached to the reinforcing rib in a state of being positioned by the concave portion. Device mounting structure. The mounting structure for a vehicle antenna device according to claim 2 or 3 , wherein the antenna device is mounted with its antenna element fixed directly to the reinforcing rib . The antenna device is in the space portion of the closed section, so as to be separated from the instrumented electrical system components in the vehicle, any of claims 1 to 4, characterized in that mounted on the side closer to the outer panel A mounting structure of the vehicle antenna device according to claim 1 . 6. The mounting structure for a vehicle antenna device according to claim 5, wherein the electric system element mounted on the vehicle is a lamp device disposed on the lift gate. The electric system element mounted on the vehicle is a heat ray disposed on the window glass of the lift gate, and the antenna device is located at a position separated from the window glass support portion in the space portion of the closed cross section. The mounting structure for a vehicle antenna device according to claim 5, wherein the mounting structure is mounted.

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