JP3604224B2

JP3604224B2 - Antenna support

Info

Publication number: JP3604224B2
Application number: JP34494895A
Authority: JP
Inventors: 孝端山
Original assignee: Maspro Denkoh Corp
Current assignee: Maspro Denkoh Corp
Priority date: 1995-12-06
Filing date: 1995-12-06
Publication date: 2004-12-22
Anticipated expiration: 2015-12-06
Also published as: JPH09162616A

Description

【０００１】
【発明の属する技術分野】
本発明は複数のアンテナを支持する為のアンテナ支持具に関する。
【０００２】
【従来の技術】
夫々先部にアンテナ取付部を備えている２本のアームは、その元部に支柱に対する添え片を備えている。各アームの添え片を支柱の一方側と他方側とに夫々沿わせる。そして一方の添え片、支柱、他方の添え片の順にボルトを差し通し、ナットで締め付けることにより、２本のアームを支柱に固定するようにしている（例えば実開昭５２−１６６４３８号公報参照）。
【０００３】
このようなものは、二つのアンテナを設置しようとする場合、アンテナ支持用の上記２本のアームを支柱の両側に対称的に取り付けることが出来るので、それらの先部に取り付けるアンテナ相互の位置関係が一定に定まる特長がある。
【０００４】
【発明が解決しようとする課題】
しかしこの従来のアンテナ支持具では、上記取り付け作業の場合、上記２本のアームを夫々手で持ち、夫々のアームにおける添え片を支柱の両側に沿わせる。そしてその状態を保持したまま、上記ボルトを差し通してナット締めを行わねばならぬ。これらの作業を一人で行うことは困難で、複数人の作業員を必要とする問題点があった。又上記アームの保持の為に作業員に不安定な姿勢を強いる為、特に高所での取り付け作業の場合には非常に危険であるという問題点があった。
【０００５】
本願発明のアンテナ支持具は上記従来技術の問題点を解決する為に提供するものである。
本願発明の目的は、アンテナ支持用の複数のアームを備えていて、複数のアンテナを所定の位置関係に設置することが出来るアンテナ支持具を提供することである。
他の目的は、上記複数のアームの取り付け作業を一人の作業員で行うことを可能に出来るようにすることである。
他の目的は、複数のアームの夫々について個別に仮止めが出来るようにすることによって、高所での取り付け作業であってもそれを安全に行い得るようにすることである。
他の目的は、複数のアームを夫々受部材に取り付ける場合、受部材が頭上の位置にあっても、仮止め用の手段を下から目で見ながらアームを操作することが出来て、容易に上記仮止め状態を達成できるようにすることである。
他の目的は、上記複数のアームの仮止め状態を安定に保つことが出来るようにすることである。
他の目的及び利点は図面及びそれに関連した以下の説明により容易に明らかになるであろう。
【０００６】
【課題を解決するための手段】
上記目的を達成する為に、本願発明におけるアンテナ支持具は、夫々は先部にアンテナ取付部を備えると共に元部に支持杆取付部を備えている複数のアームと、それらのアームの支持杆取付部と支持杆を結合する為の結合具とから成るアンテナ支持具において、上記結合具は、支持杆に対する連結部を有する本体と、夫々上記本体から側方に延び、各々は上記支持杆取付部における乗載面を乗せる為の受面を備えている複数の受部材とから成り、上記各アームの支持杆取付部には、下側に突出する横止片と、その横止片の下部から上記乗載面と対向する側に向けて突出する下止片と、上記乗載面に開口するボルト挿通用の透孔とを備えさせ、上記受部材には、上記受面に上記乗載面を乗せた状態において、上記横止片と対峙して支持杆取付部の横ずれを阻止する為の横位置規制部と、上記下止片と対峙して支持杆取付部の浮き上がりを阻止する為の浮上規制部と、上記透孔に挿通するボルトの先端部を嵌入させる為の孔とを備えさせて、上記受面に上記乗載面を乗せると共に、上記横止片及び下止片を夫々下側から目視可能な状態で上記横位置規制部及び浮上規制部と夫々対峙させ、上記透孔に挿通するボルトの先端部を上記の孔に嵌入させることにより、支持杆取付部が受部材に対して横移動と浮き上がりと前後動が阻止される状態となるようにしたものである。
【０００７】
【発明の実施の形態】
以下本願発明の実施の形態を示す図面について説明する。アンテナの設置状態を示す図１において、Ａは支持杆で、アンテナを支持する為のベースとなる部材であり、支柱（マストとも呼ばれる）を例示する。Ｂは複数のアンテナを所定の位置関係に支持する為のアンテナ支持具、Ｃは上記支持具Ｂによって支持されたアンテナを夫々示す。支持杆Ａは、アンテナの設置状態において人の頭が支持具ＢやアンテナＣに当ったりすることがないように出来る高さが選ばれ、例えば１．８ｍ或いはそれ以上の高さであったり、ビルの側壁１ａから側方に突出するアームであったりする。１はアンテナの設置場所として例示する建物の屋上の床面、２はそこに備えた基礎で、コンクリート製の台を示す。３は支柱Ａの下端に備えたベース、４はベース３を上記台２に取付ける為のボルトを示す。
【０００８】
次にアンテナ支持具Ｂは、その流通過程や設置の為の運搬時の嵩張りを小さくする為に、相互に別体となった複数のアームＢ１と結合具Ｂ２とにより構成している。複数のアームＢ１は夫々アンテナＣを相互に離間させた状態で支える為のもので、その離間の為の長さ例えば６０ｃｍを有するものであり、結合具Ｂ２はそれらのアームＢ１を支柱Ａに結合させる為のものである。各アームＢ１におけるＢ１１はアンテナの取付を行う為のアンテナ取付部を示し、Ｂ１２は支持杆に対する取付を行う為の支持杆取付部を示す。これらは上記のようにアンテナＣを相互に離間させる為に、アームＢ１の一方の端部と他方の端部に夫々設けている。支持杆取付部Ｂ１２はアームＢ１の支持の根本側となる為、後者の端部を元部とも呼び、前者の端部を先部とも呼ぶ。上記アームＢ１は軽量化及びアンテナＣの重量に耐える為に例えばアルミのパイプで形成している。Ｂ２１は結合具Ｂ２におけるベースとなる本体、Ｂ２２は各アームＢ１の支持杆取付部Ｂ１２を取り付ける為の受部材を夫々示す。受部材Ｂ２２はアームＢ１を横臥状態に支持できるようにする為に本体Ｂ２１から側方に延びる状態に設けている。符号Ｂ２２’が本体Ｂ２１に対する受部材Ｂ２２の付け根を示す。又受部材Ｂ２２は、複数（この例では四つ）のアームＢ１を相互に等角度間隔（この例では９０゜）の位置関係で固定する為に、四つの受部材Ｂ２２を相互に等角度間隔（この例では９０゜）の位置関係で備えさせている。これら本体Ｂ２１及び受部材Ｂ２２は、製造の手間数を少なくする為に例えばアルミダイカストで一体に形成した例を示すが、別体に形成し、後の工程で一体化しても良い。
【０００９】
上記本体Ｂ２１について図２に基づき説明する。６は支持杆Ａに対するしっかりとした固定を行う為の連結部で、例えばパラボラアンテナの支持具において周知の支柱取付部の構造を例示する。即ち、７は支柱の差込孔、８は差込孔の周壁の一部に穿設したねじ孔、９はねじ孔８に螺合させた固定用のボルトである。１０は避雷針の取付のためのねじ孔、１１は避雷針の不使用時に上記ねじ孔１０を塞いでおくための栓である。図３における１２は、アームＢ１における支持杆取付部Ｂ１２を位置決する為の受止面を示し、アームＢ１の端面の受止の為に上記付け根Ｂ２２’から後述の受面１６とは交差する状態（例えば垂直）に立ち上がる面に形成している。
【００１０】
上記受部材Ｂ２２について図３に基づき説明する。１６はアームＢ１の支持杆取付部Ｂ１２をその取付の為に乗せる受面で、アームＢ１をぐらつくことなく固定できるようにする為に平坦面に形成している。１７はアーム固定用のボルトを止付る為の孔で、ねじ孔を例示する。該孔１７における受面１６側の端部１７ａは上記ボルトの先端部を嵌入させる為の孔となっており、上記先端部をすぽんと容易に差し込み得るようその先端部の直径よりもやや大きい直径に形成している。１８は支持杆取付部Ｂ１２における後述の横止片２８ａと対峙して支持杆取付部Ｂ１２の横ずれを阻止する為の横位置規制部で、受部材Ｂ２２の左右の側面をもって形成している。１８ａは横位置規制部１８の先端部における案内面を示し、横止片を横位置規制部１８と対峙する位置にスムーズに導くために斜面（例えば円弧面）に形成している。１９は支持杆取付部Ｂ１２における後述の下止片２８ｂと対峙して支持杆取付部Ｂ１２の浮き上がりを規制する為の浮上規制部で、受部材Ｂ２２の下面をもって形成した例を示す。２０は受部材Ｂ２２の補強部材を示す。
【００１１】
上記アームＢ１における支持杆取付部Ｂ１２について図３に基づき説明する。２４は受部材Ｂ２２の受面１６に乗せることによりその受面１６と重合状態となる乗載面を示し、受面１６に対応した面であるところの平坦面に形成している。２５は支持杆取付部Ｂ１２におけるアームＢ１の元部側の端面を示す。２７はボルト貫通用の透孔、２９は支持杆取付部Ｂ１２を受部材Ｂ２２に固定するためのボルトを夫々示す。端面２５と透孔２７との間隔は、後述の如き位置決のときに透孔２７とねじ孔１７とがぴったりと重合状態となるようにする為に、受止面１２とねじ孔１７との間隔と一致させてある。２８は受部材Ｂ２２に対する支持杆取付部Ｂ１２の仮止めを行う為の仮止部材を示し、横止片２８ａと下止片２８ｂとから成る。これらは下側からの目視が容易なよう、図示の如く横止片２８ａは下方に向けて突出する状態に設け、下止片２８ｂはその横止片２８ａの下部から乗載面２４と対向する側に向けて側方に突出する状態に設けている。上記仮止部材２８はアームＢ１と一体に形成した例を示す。上記仮止部材２８は後述のように受部材Ｂ２２に対する支持杆取付部Ｂ１２の位置決手段及びガイド手段としての機能も備えている。
【００１２】
図４乃至図６に示す３１はボルト２９の締付力によって支持杆取付部Ｂ１２が潰れることを防止する為のスペーサで、支持杆取付部Ｂ１２の内部においてその上壁Ｂ１２ａと下壁Ｂ１２ｂとの間に介在させている。該スペーサ３１は硬質の合成樹脂製である。該スペーサ３１は上壁Ｂ１２ａと下壁Ｂ１２ｂとの間のつっかい棒として作用し、ボルト２９によって受部材Ｂ２２に支持杆取付部Ｂ１２を固定する場合に、上壁Ｂ１２ａ、スペーサ３１、下壁Ｂ１２ｂを一つの剛体として機能させる。従ってボルト２９を締めてもそのボルト頭２９ａによって支持杆取付部Ｂ１２の上壁Ｂ１２ａが潰されることはない。又ボルト２９の締付力を、支持杆取付部Ｂ１２を受部材Ｂ２２に固定する目的に充分に機能させることが出来る。尚３２はボルト２９の軸部２９ｂを貫通させる為の透孔である。３３は結合具Ｂ２に対するアームＢ１の取付以前の状態においてボルト２９がアームＢ１の透孔２７から抜け落ちることを防止する為の手段を示し、この例では、ボルト２９の軸部２９ｂの外周面に当接する透孔３２の内周面から小突片を突設させている。
【００１３】
上記支持杆取付部Ｂ１２は、アンテナの設置現場での作業を容易化する為に、メーカーでの製造の際に次のような状態まで組み立てておかれる。即ち、図６の状態からスペーサ３１をアームＢ１の内部に押し込む。ボルト２９は、その軸部２９ｂを上壁Ｂ１２ａの透孔２７を通して透孔３２内に挿入し、軸部２９ｂが下壁Ｂ１２ｂの透孔２７から突出せぬ位置まで差し込んで、突片３３により保持された状態にしておかれる。
【００１４】
図１に示す３８はアンテナ取付部Ｂ１１に備えたアンテナ取付具である。次にアンテナＣは、例えば携帯電話用の電波の送受信を行うためのアンテナを示す。重量は例えば１ｋｇ程度である。該アンテナＣとしてはその他に、無線通信用、アマチュア無線用のアンテナなどがある。３９は信号伝送用のケーブルである。
【００１５】
次にアンテナ設置場所１でのアンテナＣの設置を説明する。設置場所１には予め台２が用意されている。アンテナの設置に当たっては、先ずそこに支柱Ａを固定する。固定状態は略鉛直である。次に結合具Ｂ２をその支柱Ａの先端に図２の如く取付ける。このとき支柱Ａを中心に結合具Ｂ２を回して、その受部材Ｂ２２が適正な方向に来るようにする。又この状態では受面１６は略水平となる。次に各アンテナＣに夫々ケーブル３９を接続し、それらのアンテナＣを各アームＢ１のアンテナ取付部Ｂ１１に夫々アンテナ取付具３８でもって取付ける。
【００１６】
次に上記結合具Ｂ２に対して、上記の各アームＢ１を夫々取付ける。その取付は以下の通りである。一つのアームＢ１を手に持ち、それにおける仮止部材２８の内側に受部材Ｂ２２の先端部Ｂ２２ａが入り込むよう、乗載面２４の先端部２４ａを受部材Ｂ２２における受面１６の先端部１６ａに乗せる。この場合、斜面となった案内面１８ａがあるのでその操作は容易である。又仮止部材２８は支持杆取付部Ｂ１２の下側に備わっているので、受部材Ｂ２２の位置が高くて作業者の頭上にあっても、仮止部材２８内に上記先端部Ｂ２２ａが入り込む状態を下から見ながら行うことが出来、従ってその操作は容易である。上記のように先端部１６ａの上に先端部２４ａが乗ったならば、支持杆取付部Ｂ１２を受面１６に沿って本体Ｂ２１に向けて移動させる。この場合、受面１６をガイド面としてその上に沿って乗載面２４を滑らせれば良い。又仮止部材２８の横止片２８ａ及び下止片２８ｂは夫々ガイド部材となって横位置規制部１８及び浮上規制部１９に沿って進む。従って上記支持杆取付部Ｂ１２の移動操作は容易である。上記移動は図４に示すように端面２５が受止面１２に当接する位置まで行う。
【００１７】
上記のような操作により、横止片２８ａは横位置規制部１８と、又下止片２８ｂは浮上規制部１９と夫々対峙する。又この状態では、受止面１２と端面２５、及び横位置規制部１８と横止片２８ａが夫々位置決手段として機能して、受部材Ｂ２２に対し支持杆取付部Ｂ１２は所定の位置決状態となり、透孔２７が止付孔１７に対して丁度重合する位置関係となる。次に図７に示すようにボルト２９を押し下げてその先端部２９ｂ’を孔１７ａ内に嵌入させる。
【００１８】
上記作業を完了した状態では、アームＢ１の支持杆取付部Ｂ１２は受部材Ｂ２２に対して堅固な仮止め状態となっている。即ちアームＢ１を外から支える必要なく結合具Ｂ２に対するアームＢ１の結合状態を一時的に維持できる状態が達成されている。詳細に説明すれば、上記の如く横止片２８ａが横位置規制部１８と対峙しているので、受部材Ｂ２２に対して支持杆取付部Ｂ１２は図３に矢印Ｙで示す横方向の移動が阻止される。又、下止片２８ｂが浮上規制部１９と対峙しているので、受部材Ｂ２２に対して支持杆取付部Ｂ１２は浮き上がりが阻止される。更に又、ボルト２９の先端部２９ｂ’が孔１７ａに嵌入しているので、受部材Ｂ２２に対して支持杆取付部Ｂ１２は図３に矢印Ｘで示す前後方向の移動が阻止される。
【００１９】
上記の状態となったならば、次に受部材Ｂ２２に対し支持杆取付部Ｂ１２の本固定を行う。例えばボルト２９を止付孔１７に止付ることによって受部材Ｂ２２に対する支持杆取付部Ｂ１２の固定を行う。この場合、上記のように位置決がなされ、又ボルト２９の先端部２９ｂ’は既に止付孔１７の端部１７ａ内に入っているので、軸部２９ｂをスムーズにねじ孔１７内に螺進させることが出来る。又上記のようにアームＢ１の仮止めがなされている為、アームＢ１を手で支える必要が無い。従って作業者は、片手で支柱Ａにつかまるなどして自身の身体を支え、他方の手で上記ボルト２９の操作を行えば良く、作業を安全に行うことが出来る。
【００２０】
上記のような作業を複数のアームＢ１について全て行う。それが済んだならば図１に示されるようにバインド部材４１でもってケーブル３９を周知の如く固定することにより、アンテナＣの設置作業が完了する。
【００２１】
上記複数のアームＢ１の取付の他の手順を示せば、複数のアームＢ１を全て結合具Ｂ２に対して仮止め状態にし、その後それらのアームＢ１に関しての本固定例えば上記ボルト２９の締付操作をまとめて行っても良い。
【００２２】
次に実施形態の異なる例を説明する。上記各アームＢ１の固定用のボルト２９は１本でも良い。その場合には、該ボルト２９によって支持杆取付部Ｂ１２を受部材Ｂ２２に固定した状態では、仮止部材２８が受部材Ｂ２２に対するアームＢ１の固定部材の一つとして機能する。即ちボルト２９は受部材Ｂ２２から支持杆取付部Ｂ１２が離反することを阻止し、仮止部材２８はボルト２９を中心とするアームＢ１の回転を阻止する。
【００２３】
次にアームにおける支持杆取付部の異なる実施形態を示す図８及び図９について説明する。これらの図はアームＢ１ｅにおける支持杆取付部Ｂ１２ｅに仮止部材２８ｅを備えさえる手段の異なる例を示すものであり、仮止部材をアームとは別に形成しそれをアームに付設することによって、支持杆取付部に仮止部材を備えさせられるようにすることを目的とするものである。図において、４２はアームＢ１ｅとは別体に形成した後付部材で、断面コの字に形成しその両端部を仮止部材２８ｅとしている。上記後付部材４２は仮止部材２８ｅに仮止め作用を行わせるに足る程度の強度を有する硬質板例えば耐候性の向上のために亜鉛メッキを施した鋼板をプレス成形して形成している。４３は上記部材４２にアームＢ１ｅに対する止め付けの為に備えさせた透孔、４４はボルト挿通用の透孔で、アームＢ１ｅの透孔２７ｅと重合する位置関係に形成している。
上記後付部材４２はアームＢ１ｅの端部に対して、図８の状態から図９に示す状態のように被せ付け、止め具例えば小ねじ４５を透孔４３を通してアームＢ１ｅの止付孔４６にねじ込むことにより、アームＢ１ｅに止付る。
上記のような手段で仮止部材２８ｅをアームＢ１ｅに備えさえるようにすると、アームＢ１ｅとして汎用の角材例えば引抜形成された角パイプの利用が可能となる。なお、機能上前図のものと同一又は均等の構成で説明が重複すると考えられる部分には、前図と同一の符号にアルファベットのｅを付して重複する説明を省略した。
【００２４】
【発明の効果】
以上のように本願発明にあっては、複数のアンテナＣを設置する場合、アンテナ支持用の複数のアームＢ１における各支持杆取付部Ｂ１２を、結合具Ｂ２に備わっている複数の受部材Ｂ２２に夫々取付けることによって、それらのアームＢ１が一定の位置関係で配列され、それらのアームＢ１に夫々取付けるアンテナＣを所定の位置関係に配列できる特長がある。
しかも上記複数のアームＢ１の取付の場合、各アームＢ１は夫々の元部の支持杆取付部Ｂ１２を結合具Ｂ２における受部材Ｂ２２に夫々個別に取り付ければよいので、一つずつ取付を行いうる特長がある。このことは、上記取り付け作業を一人の作業員で行うことを可能に出来る効果がある。
しかも上記アームＢ１の取付の場合、受面１６に乗載面２４を乗せ、支持杆取付部Ｂ１２における横止片２８ａ及び下止片２８ｂを受部材Ｂ２２における横位置規制部１８及び浮上規制部１９と夫々対峙させ、透孔２７に差し込んだボルト２９の先端部２９ｂ’を受部材Ｂ２２の孔１７ａに嵌入させることにより、支持杆取付部Ｂ１２を受部材Ｂ２２に仮止め出来る特長がある。このことは、受部材Ｂ２２に対してアームＢ１の支持杆取付部Ｂ１２を本固定する場合、アームＢ１を別途支えたりする必要がないので、たとえ高所での取付であっても、その作業を安全に行うことを可能に出来る効果がある。その上上記のようにアームＢ１の支持杆取付部Ｂ１２を受部材Ｂ２２に仮止め状態にする作業の場合、上記横止片２８ａ及び下止片２８ｂは支持杆取付部Ｂ１２の下側に備えているので、受部材Ｂ２２が頭上の位置にあっても、それら仮止め用の横止片２８ａ及び下止片２８ｂを下から目で見ながらアームＢ１を操作することが出来て、容易な作業でもって上記仮止め状態を達成できる作業上の効果がある。
更に上記仮止め状態は、上記横止片２８ａと横位置規制部１８との対峙により支持杆取付部Ｂ１２の横移動が阻止され、下止片２８ｂと浮上規制部１９との対峙により支持杆取付部Ｂ１２の浮き上がりが阻止され、更に、上記孔１７ａに対する上記ボルト２９の先端部２９ｂ’の嵌入により受部材２２に対する支持杆取付部Ｂ１２の前後動が阻止されるので、アームＢ１の仮止め状態は非常に安定なものとなる特長がある。このことは、アームの本固定までの間の落下事故の危険を僅少にし、その結果、複数のアームを先に全部仮止め状態にしておいて、後で全てまとめて本固定するという操作を可能に出来、設置作業の能率を向上させることを可能に出来る効果がある。
【図面の簡単な説明】
【図１】アンテナの設置状態を示す斜視図。
【図２】支柱に対する連結部を示す縦断面図。
【図３】受部材と支持杆取付部とを示す斜視図。
【図４】受部材に対し支持杆取付部を乗せた状態を示す一部破断図。
【図５】受部材に対し支持杆取付部を取り付けた状態における固定用ボルトの位置での縦断面図。
【図６】支持杆取付部の分解斜視図。
【図７】受部材に対する支持杆取付部の仮止め状態を示す一部破断図。
【図８】支持杆取付部の異なる実施形態を示す分解斜視図。
【図９】支持杆取付部の異なる実施形態を示す斜視図。
【符号の説明】
Ｂ１アーム
Ｂ１１アンテナ取付部
Ｂ１２支持杆取付部
Ｂ２結合具
Ｂ２１本体
Ｂ２２受部材
１６受面
１７止付孔
１８横位置規制部
１９浮上規制部
２８ａ横止片
２８ｂ下止片
２９固定用のボルト[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an antenna support for supporting a plurality of antennas.
[0002]
[Prior art]
Each of the two arms, each having an antenna mounting portion at the tip, has an attachment to the support at its base. The attachment pieces of each arm are respectively set along one side and the other side of the column. Then, two arms are fixed to the support by inserting bolts in the order of one of the support, the support, and the other support and tightening with a nut (for example, see Japanese Utility Model Application Laid-Open No. 52-166438). .
[0003]
In such a case, when two antennas are to be installed, the above-mentioned two arms for supporting the antenna can be symmetrically attached to both sides of the support, so that the positional relationship between the antennas attached to the front ends thereof is set. Has the feature of being fixed.
[0004]
[Problems to be solved by the invention]
However, in this conventional antenna support, in the case of the mounting operation, the two arms are respectively held by hands, and the attached pieces of each arm are arranged along both sides of the support. Then, while maintaining this state, the nut must be tightened by inserting the bolt. It is difficult to perform these operations alone, and there is a problem that a plurality of workers are required. In addition, there is a problem that it is extremely dangerous to attach the arm to the operator, forcing the worker to be in an unstable posture, especially in the case of mounting work at a high place.
[0005]
The antenna support of the present invention is provided to solve the above-mentioned problems of the prior art.
SUMMARY OF THE INVENTION An object of the present invention is to provide an antenna support having a plurality of antennas for supporting an antenna and capable of installing a plurality of antennas in a predetermined positional relationship.
Another object is to enable a single worker to perform the mounting operation of the plurality of arms.
Another object of the present invention is to make it possible to perform a temporary fixing operation for each of a plurality of arms individually even in a high-place mounting operation.
Another object is that when a plurality of arms are attached to the receiving member, even if the receiving member is located at an overhead position, the arm can be operated while visually observing the means for provisional fixing from below, so that it can be easily operated. That is, the temporary fixing state can be achieved.
Another object is to make it possible to stably maintain the temporary fixing state of the plurality of arms.
Other objects and advantages will become more readily apparent from the drawings and the following description associated therewith.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an antenna support according to the present invention includes a plurality of arms each having an antenna mounting portion at a front end and a support rod mounting portion at a base portion, and a support rod mounting portion for the arms. An antenna support comprising a connecting member for connecting the supporting rod to the support rod, wherein the connecting tool extends laterally from the main body having a connecting portion to the supporting rod, and each of the connecting rods includes a supporting rod mounting portion. And a plurality of receiving members having a receiving surface for mounting the mounting surface of the arm. The supporting rod mounting portion of each of the arms includes a lateral stopper piece protruding downward and a lower part of the lateral stopper piece. A lower stopper protruding toward a side facing the mounting surface; and a bolt insertion through-hole opening in the mounting surface, wherein the receiving member includes the mounting surface on the receiving surface. With the support rod mounting part facing the horizontal stopper A lateral position restricting portion for preventing lateral displacement, a floating restricting portion for preventing the support rod mounting portion from being lifted facing the lower stopper, and a tip end portion of a bolt inserted into the through hole. And the mounting surface is placed on the receiving surface, and the lateral stopper and the lower stopper are respectively opposed to the lateral position restricting part and the floating restricting part in a state where they can be viewed from below. The supporting rod mounting portion is prevented from laterally moving, rising and moving back and forth with respect to the receiving member by fitting a tip end of a bolt inserted into the through hole into the hole. It is.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, drawings illustrating embodiments of the present invention will be described. In FIG. 1 showing the installation state of the antenna, A is a supporting rod, which is a member serving as a base for supporting the antenna, and exemplifies a column (also called a mast). B denotes an antenna support for supporting a plurality of antennas in a predetermined positional relationship, and C denotes an antenna supported by the support B. The height of the support rod A is selected so that a human head does not hit the support B or the antenna C when the antenna is installed. For example, the height is 1.8 m or more. It may be an arm projecting laterally from the side wall 1a of the building. Reference numeral 1 denotes a rooftop floor of a building exemplified as an antenna installation location, and reference numeral 2 denotes a concrete base provided on the foundation. Reference numeral 3 denotes a base provided at the lower end of the column A, and reference numeral 4 denotes a bolt for attaching the base 3 to the base 2.
[0008]
Next, the antenna support B is composed of a plurality of arms B1 and a coupler B2 which are separate from each other in order to reduce the bulk of the antenna support B during transportation for installation and installation. The plurality of arms B1 are for supporting the antennas C in a state of being separated from each other, and have a length of, for example, 60 cm for the separation, and the coupling tool B2 connects the arms B1 to the column A. It is to make it. B11 in each arm B1 indicates an antenna mounting portion for mounting an antenna, and B12 indicates a support rod mounting portion for mounting to a support rod. These are provided at one end and the other end of the arm B1 to separate the antennas C from each other as described above. Since the support rod mounting portion B12 is on the root side of the support of the arm B1, the end of the latter is also referred to as a base, and the end of the former is also referred to as a front. The arm B1 is formed of, for example, an aluminum pipe in order to reduce the weight and withstand the weight of the antenna C. B21 indicates a main body serving as a base of the coupling tool B2, and B22 indicates a receiving member for mounting the support rod mounting portion B12 of each arm B1. The receiving member B22 is provided so as to extend laterally from the main body B21 so as to be able to support the arm B1 in a lying state. Reference sign B22 'indicates the base of the receiving member B22 with respect to the main body B21. Further, the receiving member B22 is fixed to the four receiving members B22 at an equal angular interval so as to fix a plurality of (four in this example) arms B1 at an equal angular interval (90 ° in this example). (In this example, 90 °). An example is shown in which the main body B21 and the receiving member B22 are integrally formed by, for example, aluminum die casting in order to reduce the number of manufacturing steps, but they may be formed separately and integrated in a later step.
[0009]
The main body B21 will be described with reference to FIG. Reference numeral 6 denotes a connecting part for firmly fixing the supporting rod A, for example, a structure of a well-known post mounting part in a support for a parabolic antenna. That is, 7 is an insertion hole of a support, 8 is a screw hole formed in a part of the peripheral wall of the insertion hole, and 9 is a fixing bolt screwed into the screw hole 8. Reference numeral 10 denotes a screw hole for attaching a lightning rod, and 11 denotes a stopper for closing the screw hole 10 when the lightning rod is not used. Numeral 12 in FIG. 3 denotes a receiving surface for positioning the support rod mounting portion B12 of the arm B1, and a state intersecting with the receiving surface 16 described below from the base B22 'for receiving the end surface of the arm B1. (For example, vertically).
[0010]
The receiving member B22 will be described with reference to FIG. Reference numeral 16 denotes a receiving surface on which the support rod mounting portion B12 of the arm B1 is mounted for mounting, and is formed as a flat surface so that the arm B1 can be fixed without shaking. Reference numeral 17 denotes a hole for fixing an arm fixing bolt, and a screw hole is exemplified. The end 17a of the hole 17 on the receiving surface 16 side is a hole for fitting the tip of the bolt, and is slightly larger than the diameter of the tip so that the tip can be easily inserted. The diameter is formed. Reference numeral 18 denotes a lateral position restricting portion for preventing a lateral displacement of the support rod mounting portion B12 by opposing a lateral stopper piece 28a of the support rod mounting portion B12, which is formed by the left and right side surfaces of the receiving member B22. Reference numeral 18a denotes a guide surface at the distal end of the lateral position restricting portion 18, which is formed on a slope (for example, an arc surface) in order to smoothly guide the lateral stopper to a position facing the lateral position restricting portion 18. Reference numeral 19 denotes a floating restricting portion for restricting the lifting of the support rod mounting portion B12 facing the lower stopper 28b of the support rod mounting portion B12 described later, and shows an example formed with the lower surface of the receiving member B22. Reference numeral 20 denotes a reinforcing member for the receiving member B22.
[0011]
The support rod mounting portion B12 of the arm B1 will be described with reference to FIG. Reference numeral 24 denotes a mounting surface which is placed on the receiving surface 16 of the receiving member B22 so as to be superimposed on the receiving surface 16 and is formed on a flat surface corresponding to the receiving surface 16. Reference numeral 25 denotes an end surface of the support rod mounting portion B12 on the base portion side of the arm B1. 27 denotes a through hole for bolt penetration, and 29 denotes a bolt for fixing the support rod mounting portion B12 to the receiving member B22. The distance between the end surface 25 and the through hole 27 is set so that the through hole 27 and the screw hole 17 are exactly overlapped with each other at the time of positioning as described later. Matched with the interval. Reference numeral 28 denotes a temporary fixing member for temporarily fixing the support rod mounting portion B12 to the receiving member B22, and includes a lateral stopper 28a and a lower stopper 28b. As shown in the drawing, the side stoppers 28a are provided so as to protrude downward so that they can be easily viewed from below, and the lower stoppers 28b face the mounting surface 24 from the lower part of the side stoppers 28a. It is provided so as to protrude laterally toward the side. An example is shown in which the temporary fixing member 28 is formed integrally with the arm B1. The temporary fixing member 28 also has a function as a positioning means and a guide means for the support rod mounting portion B12 with respect to the receiving member B22 as described later.
[0012]
A spacer 31 shown in FIGS. 4 to 6 is a spacer for preventing the support rod mounting portion B12 from being crushed by the tightening force of the bolt 29. The spacer 31 is formed between the upper wall B12a and the lower wall B12b inside the support rod mounting portion B12. It is interposed between them. The spacer 31 is made of a hard synthetic resin. The spacer 31 functions as a bar between the upper wall B12a and the lower wall B12b, and when the supporting rod mounting portion B12 is fixed to the receiving member B22 by the bolt 29, the upper wall B12a, the spacer 31, and the lower wall B12b are used. Function as one rigid body. Therefore, even if the bolt 29 is tightened, the upper wall B12a of the support rod mounting portion B12 will not be crushed by the bolt head 29a. Further, the tightening force of the bolt 29 can be made to function sufficiently for the purpose of fixing the support rod mounting portion B12 to the receiving member B22. Reference numeral 32 denotes a through hole for passing the shaft portion 29b of the bolt 29. Reference numeral 33 denotes a means for preventing the bolt 29 from dropping out of the through hole 27 of the arm B1 before the arm B1 is attached to the coupling B2. In this example, the means 33 contacts the outer peripheral surface of the shaft 29b of the bolt 29. A small protruding piece protrudes from the inner peripheral surface of the through hole 32 in contact.
[0013]
The support rod mounting portion B12 is assembled to the following state at the time of manufacture by a manufacturer in order to facilitate the work at the installation site of the antenna. That is, the spacer 31 is pushed into the arm B1 from the state shown in FIG. The bolt 29 is inserted into the through hole 32 through the through hole 27 of the upper wall B12a, and is inserted into the through hole 32 until the shaft portion 29b does not protrude from the through hole 27 of the lower wall B12b. It is kept in a state.
[0014]
Reference numeral 38 shown in FIG. 1 is an antenna mounting tool provided on the antenna mounting portion B11. Next, an antenna C is an antenna for transmitting and receiving radio waves for mobile phones, for example. The weight is, for example, about 1 kg. Other examples of the antenna C include a radio communication antenna and an amateur radio antenna. 39 is a signal transmission cable.
[0015]
Next, the installation of the antenna C at the antenna installation location 1 will be described. A table 2 is prepared in the installation location 1 in advance. When installing the antenna, first, the column A is fixed thereto. The fixed state is substantially vertical. Next, the coupling tool B2 is attached to the tip of the column A as shown in FIG. At this time, the coupling member B2 is turned around the column A so that the receiving member B22 comes in an appropriate direction. In this state, the receiving surface 16 is substantially horizontal. Next, cables 39 are connected to the respective antennas C, and the antennas C are mounted on the antenna mounting portions B11 of the respective arms B1 with the respective antenna mounting members 38.
[0016]
Next, each of the arms B1 is attached to the coupler B2. The mounting is as follows. Hold one arm B1 in hand, and attach the distal end 24a of the mounting surface 24 to the distal end 16a of the receiving surface 16 of the receiving member B22 so that the distal end B22a of the receiving member B22 enters the temporary fixing member 28 therein. Put on. In this case, the operation is easy because the inclined guide surface 18a is provided. In addition, since the temporary fixing member 28 is provided below the support rod mounting portion B12, even when the receiving member B22 is at a high position and is above the worker's head, the above-mentioned distal end portion B22a enters the temporary fixing member 28. Can be performed while viewing from below, and thus the operation is easy. When the distal end portion 24a rides on the distal end portion 16a as described above, the support rod mounting portion B12 is moved along the receiving surface 16 toward the main body B21. In this case, the receiving surface 16 may be used as a guide surface and the mounting surface 24 may be slid along the guide surface. Further, the lateral stopper 28a and the lower stopper 28b of the temporary fixing member 28 serve as guide members, and advance along the lateral position restricting portion 18 and the floating restricting portion 19, respectively. Therefore, the operation of moving the support rod mounting portion B12 is easy. The above movement is performed until the end surface 25 comes into contact with the receiving surface 12 as shown in FIG.
[0017]
By the operation as described above, the lateral stopper 28a faces the lateral position regulating part 18, and the lower stopper 28b faces the floating regulating part 19, respectively. In this state, the receiving surface 12 and the end surface 25, and the lateral position restricting portion 18 and the lateral stopper piece 28a respectively function as positioning means, and the supporting rod mounting portion B12 is in a predetermined positioning state with respect to the receiving member B22. Thus, the through hole 27 has a positional relationship in which the through hole 27 is exactly overlapped with the fastening hole 17. Next, as shown in FIG. 7, the bolt 29 is pushed down, and its tip portion 29b 'is fitted into the hole 17a.
[0018]
In a state where the above operation is completed, the support rod mounting portion B12 of the arm B1 is in a firm temporary fixing state with respect to the receiving member B22. That is, a state in which the coupling state of the arm B1 to the coupling tool B2 can be temporarily maintained without having to support the arm B1 from the outside is achieved. More specifically, since the lateral stopper 28a faces the lateral position restricting portion 18 as described above, the support rod mounting portion B12 moves in the lateral direction indicated by the arrow Y in FIG. 3 with respect to the receiving member B22. Will be blocked. Further, since the lower stop piece 28b faces the floating regulating portion 19, the supporting rod mounting portion B12 is prevented from floating with respect to the receiving member B22. Furthermore, since the tip portion 29b 'of the bolt 29 is fitted into the hole 17a, the support rod mounting portion B12 is prevented from moving in the front-rear direction indicated by the arrow X in FIG. 3 with respect to the receiving member B22.
[0019]
When the above state is attained, next, the support rod mounting portion B12 is permanently fixed to the receiving member B22. For example, the support rod mounting portion B12 is fixed to the receiving member B22 by fixing the bolt 29 to the fixing hole 17. In this case, the positioning is performed as described above, and since the tip portion 29b 'of the bolt 29 is already in the end portion 17a of the fastening hole 17, the shaft portion 29b is smoothly screwed into the screw hole 17. Can be made. Since the arm B1 is temporarily fixed as described above, it is not necessary to support the arm B1 by hand. Therefore, the worker only has to support his or her body by holding on to the column A with one hand and operate the bolt 29 with the other hand, and the work can be performed safely.
[0020]
The above operations are all performed on the plurality of arms B1. After that, as shown in FIG. 1, the cable 39 is fixed by the binding member 41 in a known manner, and the installation work of the antenna C is completed.
[0021]
Another procedure for mounting the plurality of arms B1 is as follows. All of the plurality of arms B1 are temporarily fixed to the joint B2, and then the permanent fixing of the arms B1 such as the tightening operation of the bolt 29 is performed. You may go together.
[0022]
Next, different examples of the embodiment will be described. The number of fixing bolts 29 for each arm B1 may be one. In this case, in a state where the support rod mounting portion B12 is fixed to the receiving member B22 by the bolt 29, the temporary fixing member 28 functions as one of the fixing members of the arm B1 to the receiving member B22. That is, the bolt 29 prevents the support rod mounting portion B12 from separating from the receiving member B22, and the temporary fixing member 28 prevents the rotation of the arm B1 about the bolt 29.
[0023]
Next, FIGS. 8 and 9 showing different embodiments of the support rod mounting portion in the arm will be described. These drawings show different examples of means for providing a temporary fixing member 28e on the support rod mounting portion B12e of the arm B1e. The temporary fixing member is formed separately from the arm and attached to the arm to provide a support. It is an object of the present invention to provide a temporary attachment member in the rod attachment portion. In the figure, reference numeral 42 denotes a retrofit member formed separately from the arm B1e. The retrofit member 42 is formed by press-forming a hard plate having sufficient strength to cause the temporary fixing member 28e to perform a temporary fixing operation, for example, a galvanized steel plate for improving weather resistance. Reference numeral 43 denotes a through hole provided in the member 42 for fastening the arm B1e to the arm B1e, and reference numeral 44 denotes a through hole for bolt insertion, which is formed in a positional relationship to overlap with the through hole 27e of the arm B1e.
The above-mentioned retrofitting member 42 covers the end of the arm B1e from the state shown in FIG. 8 to the state shown in FIG. 9, and a stopper, for example, a small screw 45 is inserted through the through hole 43 into the fastening hole 46 of the arm B1e. By screwing in, it stops on arm B1e.
When the temporary fixing member 28e is provided on the arm B1e by the above-described means, a general-purpose square material, for example, a drawn square pipe can be used as the arm B1e. Note that, for functionally the same or equivalent configuration as that of the previous figure, the description of which is considered to be duplicated is omitted by adding the same reference numeral as the previous figure to the letter e of the alphabet and duplicating the description.
[0024]
【The invention's effect】
As described above, in the present invention, when a plurality of antennas C are installed, the support rod mounting portions B12 of the plurality of arms B1 for supporting the antenna are attached to the plurality of receiving members B22 provided in the coupling tool B2. By attaching each of them, the arms B1 are arranged in a fixed positional relationship, and the antenna C attached to each of the arms B1 is arranged in a predetermined positional relationship.
In addition, in the case of mounting the plurality of arms B1, since the arms B1 need only be individually mounted on the support rod mounting portions B12 of the respective base portions on the receiving members B22 of the coupler B2, the feature that each arm B1 can be mounted one by one. There is. This has the effect that it is possible to perform the mounting operation by one worker.
In addition, in the case of mounting the arm B1, the mounting surface 24 is placed on the receiving surface 16, and the horizontal stopper 28a and the lower stopper 28b of the support rod mounting portion B12 are moved to the horizontal position restricting portion 18 and the floating restricting portion 19 of the receiving member B22. The support rod mounting portion B12 can be temporarily fixed to the receiving member B22 by fitting the tip portion 29b 'of the bolt 29 inserted into the through hole 27 into the hole 17a of the receiving member B22. This means that when the support rod mounting portion B12 of the arm B1 is permanently fixed to the receiving member B22, it is not necessary to separately support the arm B1, and therefore, even if the mounting is performed at a high place, the work can be performed. There is an effect that can be performed safely. In addition, in the case where the support rod mounting portion B12 of the arm B1 is temporarily fixed to the receiving member B22 as described above, the horizontal stopper piece 28a and the lower stopper piece 28b are provided below the support rod mounting section B12. Therefore, even when the receiving member B22 is located at the position above the head, the arm B1 can be operated while visually observing the side stoppers 28a and the lower stoppers 28b for temporary fixing from below, and the work is easy. Accordingly, there is an operational effect that can achieve the temporary fixing state.
Further, in the temporary fixing state, the lateral movement of the support rod mounting portion B12 is prevented by the opposition of the lateral stopper piece 28a and the lateral position restricting portion 18, and the support rod mounting is performed by the opposition of the lower stopper piece 28b and the floating restricting portion 19. The lifting of the portion B12 is prevented, and furthermore, the forward and backward movement of the support rod mounting portion B12 with respect to the receiving member 22 is prevented by the fitting of the tip portion 29b 'of the bolt 29 into the hole 17a. It has the feature of being very stable. This minimizes the danger of a fall accident before the arm is fully fixed. As a result, it is possible to temporarily fix all of the arms first and then permanently fix them all together This has the effect of making it possible to improve the efficiency of the installation work.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an installation state of an antenna.
FIG. 2 is a longitudinal sectional view showing a connecting portion to a support.
FIG. 3 is a perspective view showing a receiving member and a support rod mounting portion.
FIG. 4 is a partially broken view showing a state where a support rod mounting portion is placed on a receiving member.
FIG. 5 is a longitudinal sectional view at a position of a fixing bolt in a state where a support rod mounting portion is mounted on a receiving member.
FIG. 6 is an exploded perspective view of a support rod mounting portion.
FIG. 7 is a partially cutaway view showing a temporarily fixed state of a support rod mounting portion with respect to a receiving member.
FIG. 8 is an exploded perspective view showing a different embodiment of the support rod mounting portion.
FIG. 9 is a perspective view showing a different embodiment of the support rod mounting portion.
[Explanation of symbols]
B1 Arm B11 Antenna mounting portion B12 Support rod mounting portion B2 Coupler B21 Main body B22 Receiving member 16 Receiving surface 17 Locking hole 18 Horizontal position restricting portion 19 Floating restricting portion 28a Horizontal stopper 28b Lower stopper 29 Fixing bolt

Claims

夫々は先部にアンテナ取付部を備えると共に元部に支持杆取付部を備えている複数のアームと、それらのアームの支持杆取付部と支持杆を結合する為の結合具とから成るアンテナ支持具において、上記結合具は、支持杆に対する連結部を有する本体と、夫々上記本体から側方に延び、各々は上記支持杆取付部における乗載面を乗せる為の受面を備えている複数の受部材とから成り、上記各アームの支持杆取付部には、下側に突出する横止片と、その横止片の下部から上記乗載面と対向する側に向けて突出する下止片と、上記乗載面に開口するボルト挿通用の透孔とを備えさせ、上記受部材には、上記受面に上記乗載面を乗せた状態において、上記横止片と対峙して支持杆取付部の横ずれを阻止する為の横位置規制部と、上記下止片と対峙して支持杆取付部の浮き上がりを阻止する為の浮上規制部と、上記透孔に挿通するボルトの先端部を嵌入させる為の孔とを備えさせて、上記受面に上記乗載面を乗せると共に、上記横止片及び下止片を夫々下側から目視可能な状態で上記横位置規制部及び浮上規制部と夫々対峙させ、上記透孔に挿通するボルトの先端部を上記の孔に嵌入させることにより、支持杆取付部が受部材に対して横移動と浮き上がりと前後動が阻止される状態となるようにしたことを特徴とするアンテナ支持具。An antenna support comprising a plurality of arms each having an antenna mounting portion at the front end and a supporting rod mounting portion at the base portion, and a coupling tool for connecting the supporting rod mounting portions of the arms and the supporting rod. In the device, the coupling tool has a main body having a connecting portion to the support rod, and a plurality of each extending sideways from the main body, each having a receiving surface for mounting a mounting surface in the support rod mounting portion. A supporting member attached to each arm, and a lower stopper protruding downward from the lower part of the lateral stopper and projecting toward a side facing the mounting surface from a lower portion of the lateral stopper. And a through hole for bolt insertion that is open on the mounting surface, and the receiving member has a support rod facing the lateral stopper when the mounting surface is mounted on the receiving surface. A lateral position regulating part for preventing lateral displacement of the mounting part, and facing the lower stopper A lifting regulation part for preventing lifting of the holding rod mounting part, and a hole for fitting a tip end of a bolt inserted into the through hole are provided, and the mounting surface is placed on the receiving surface, The lateral stopper and the lower stopper are respectively opposed to the lateral position restricting portion and the floating restricting portion in a state where they can be viewed from below, and the tips of bolts inserted into the through holes are fitted into the holes. An antenna support wherein the support rod mounting portion is prevented from laterally moving, rising, and moving back and forth with respect to the receiving member.