JP2004048693A - Method of fixing antenna element and antenna element fixed on arm - Google Patents

Method of fixing antenna element and antenna element fixed on arm Download PDF

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Publication number
JP2004048693A
JP2004048693A JP2003123039A JP2003123039A JP2004048693A JP 2004048693 A JP2004048693 A JP 2004048693A JP 2003123039 A JP2003123039 A JP 2003123039A JP 2003123039 A JP2003123039 A JP 2003123039A JP 2004048693 A JP2004048693 A JP 2004048693A
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Prior art keywords
antenna element
arm
fixing
insertion hole
hole
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JP2003123039A
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JP2004048693A5 (en
JP4393101B2 (en
Inventor
Toshiaki Shirosaka
城阪　敏明
Hitoshi Nagano
長野　仁志
Toshio Fujita
藤田　敏夫
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DX Antenna Co Ltd
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DX Antenna Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce costs by omitting efforts of putting through an arrow and removing an oily ingredient. <P>SOLUTION: In this method of fixing an antenna element, the antenna element is inserted into an insertion hole of an arm, and the antenna element is fixed on the arm to form a right angle. Then, a portion near the insertion hole through which the antenna element is put so as to abut against the arm is subjected to press work to deform the insertion hole, so that the antenna element contacts the arm and is fixed. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、アンテナ素子の固定方法とアームに固定されたアンテナ素子に関するものである。
【０００２】
【従来の技術】
従来のアンテナ素子をアームに固定する方法を、図７により説明する。
【０００３】
アーム１０１の挿通孔１０２にアンテナ素子１０３を挿通させた後、アーム１０１内壁とアーム１０１の内側のアンテナ素子１０３との間隙に、この間隙より大きい断面の矢を、上下同時に通して図示のようにアンテナ素子１０３を変形させている。
【０００４】
アンテナ素子１０３を矢により上下方向に潰した時にアンテナ素子１０３の断面は横方向に拡がり楕円形状となり、拡がった部分が挿通孔１０２に当接し、又アーム１０１内部のアンテナ素子１０３も拡がるため、アンテナ素子１０３がアーム１０１の左右方向にズレ抜けることはなく、アンテナ素子１０３がアーム１０１に固定される。
【０００５】
【発明が解決しようとする課題】
上記の従来のアンテナ素子１０３をアーム１０１に固定する方法の欠点としては、アーム１０１内壁とアーム１０１の内側のアンテナ素子１０３との間隙に矢を通す手間と、又、矢を引き抜く時にアンテナ素子１０３の折損を無くするため、潤滑のために多量の油が必要で、カシメた後、アーム１０１内部の油分を取り除く酸洗等の脱脂工程が必要である。
【０００６】
【課題を解決するための手段】
そこで、本発明は、上記の事情に鑑み、矢を通す手間と油分を取り除く工程を省略してコストダウンを図るべく、アームの挿通孔にアンテナ素子を挿通させ、アームにアンテナ素子を直角状に固定するアンテナ素子の固定方法であって、アンテナ素子が挿通されアームと当接する挿通孔の近傍をプレス加工して挿通孔を変形させてアンテナ素子とアームとを接触・固定させるようにしたアンテナ素子の固定方法とした。
【０００７】
又、本発明は、具体的には、プレス加工が挿通孔の近傍の上下を加圧するアンテナ素子の固定方法とした。
【０００８】
更に、本発明は、具体的には、プレス加工が挿通孔の近傍の上方の２箇所と下方の２箇所を加圧するアンテナ素子の固定方法とした。
【０００９】
更に又、本発明は、具体的には、アンテナ素子が挿入された箇所のアームの全周を、アンテナ素子の挿入部を除き、アームを縮径させるように加工するアンテナ素子の固定方法とした。
【００１０】
更にその上に、本発明は、具体的には、縮径部の幅がアンテナ素子と同幅或いはアンテナ素子幅内に複数の縮径部としたアンナナ素子の固定方法とした。
【００１１】
更にその上に、本発明は、具体的に金型で加工する方法として、アームと直交するように配置する円柱体に軸方向と直交するアンテナ素子を受け入れる貫通孔穿設し、貫通孔の端部に貫通孔と直交しアンテナ素子を受け入れアームを加工する加工溝を刻設した金型を用いる固定方法であって、アンテナ素子の両端部にそれぞれ金型の貫通孔を内嵌めし、金型をアームに向けて摺動させてアームを押圧し、加工溝のエッジで挿通孔を変形させるようにプレス加工するアンテナ素子の固定方法とした。
【００１２】
更にその上に、本発明は、上記の方法により製作されたアームに固定されたアンテナ素子である。
【００１３】
【発明の実施の態様】
本発明を添付する図面に示す具体的な実施例に基づいて、以下詳細に説明する。
【００１４】
本発明は、アーム１の挿通孔２にアンテナ素子３を挿通させ、アーム１にアンテナ素子３を直角状に固定するアンテナ素子３の固定方法であって、アンテナ素子３が挿通孔２に挿通され、アーム１と当接する挿通孔２の近傍をプレス加工して挿通孔２を変形させてアンテナ素子３とアーム１とを接触・固定させるようにしたアンテナ素子の固定方法である。
【００１５】
本発明では、矢を用いることなく、プレス加工により、挿通孔２近傍のアーム１をプレス加工し、挿通孔２を変形させて接触・固定させるようにしたものである。
【００１６】
挿通孔２近傍のアーム１のプレス加工として次のようなものがある。
【００１７】
先ず、図１に示すものは、例えば、プレス加工が外径２２ｍｍのアルミ製アーム１の孔径８．１ｍｍの挿通孔２の近傍に、外径８ｍｍのアルミ製アンテナ素子３を挿通し、挿通孔３の上下を加圧するものである。加圧箇所が符号１１で示すアーム１の挿通孔２の近傍の上の円弧部分および符号１２で示すアーム１の挿通孔２の近傍の下の円弧部分である。
【００１８】
アーム１の縮小径は次のようにして設定する。アーム１の挿通孔２の孔径は８．１ｍｍ、アンテナ素子３の外径が８ｍｍ、挿通孔２の孔径とアンテナ素子３の外径との間隙は０．１ｍｍである。アーム１の縮小径は間隙の１．５倍とすると、０．１ｍｍ×１．５＝０．１５ｍｍとなる。すると、アーム１の挿通孔２の孔径は、８．１ｍｍ−０．１５ｍｍ＝７．９５ｍｍとなって、アンテナ素子３は孔径が８ｍｍであったものが、全外周にわたり挿通孔２により押圧される。アーム１の縮小径を間隙の１．０倍とすると、０．１ｍｍ×１．０＝０．１ｍｍとなる。すると、アーム１の挿通孔２の孔径は、８．１ｍｍ−０．１ｍｍ＝８ｍｍとなって、アンテナ素子３は挿通孔２により押圧されない。
【００１９】
アーム１の縮小径を間隙の１倍であると、アンテナ素子３はアーム１の挿通孔２より抜けることがある。これが発生しないように約１．５〜２倍が最も好ましい。３倍になるとかなりの加圧が必要となって挿通孔２付近が変形する。
【００２０】
アーム１の挿通孔２にアンテナ素子３を挿通し、アンテナ素子３の中央位置を決め、上下より円弧状の金型で上下２箇所を同時に上下よりプレス加工し、挿通孔２を縮径させると共にこの時の加圧でアンテナ素子３もアーム１と当接する上下２箇所で縮小し、アンテナ素子３とアーム１とは接触固定され、電気的にも機械的にも安定する。
【００２１】
図６に示すように、多数アンテナ素子で構成されるアンテナの場合は、複数のアンテナ素子３をアーム１の挿通孔２に挿通させ、アンテナ素子３を下型にセットしてその中央部の位置決めを行う。
【００２２】
プレス機械に装着した上型と下型で全アンテナ素子３を同時に加工できる。
【００２３】
本発明では、アンテナ素子の折損等のおそれがなく、油分を必要としないので、加工工程による油分の付着がなく、脱脂工程が簡単でよい。
【００２４】
次に図２に示すものは、プレス加工が挿通孔２の近傍の上方の２箇所と下方の２箇所を加圧するものである。符号１３は上方２箇所の加圧箇所で、符号１４は下方２箇所の加圧箇所である。アンテナ素子３の全周４箇所（外周９０°毎）で確実に接触・固定することができる。
【００２５】
図３に示すものは、アンテナ素子３が挿入された箇所のアーム１の全周をアンテナ素子３の挿入部を除き、アーム１を縮径させるように加工するものである。
【００２６】
符号１５は縮径部である。挿通孔２とアンテナ素子３と共に縮小させた例である。アンテナ素子３の幅の８ｍｍ幅で縮径させている。
【００２７】
図４に示すものは、縮径部の幅がアンテナ素子３幅８ｍｍ内に２個の縮径部１６１　・１６２　としたものである。
【００２８】
図５にアンテナ素子３のアーム１の接触部の円環凹部１７１　・１７２　を示す。アーム１を上下よりプレス加工した時にアンテナ素子３も加工され凹み、円環凹部１７１　・１７２　が形成され、アンテナ素子３の左右へのズレがなくなる。
【００２９】
本発明は、上記の方法により製作したアーム１に固定されたアンテナ素子３で図６に示すように、八木形アンテナを構成しテレビ電波を受信するアンテナとして使用される。
【００３０】
図８〜図１１により、請求項６のアンテナ素子の固定方法を説明する。
【００３１】
図８には、アンテナ素子の固定方法の各工程が示され、そこで使用される金型２１も詳細に図示されている。まず、金型２１について説明する。
【００３２】
金型２１は、アルミ製パイプのアーム１と直交するように配置する金属製円柱体に軸方向Ａ−Ａと直交するアルミ製パイプのアンテナ素子３を受け入れる貫通孔２２を穿設し、貫通孔２２の端部に貫通孔２２と直交し水平状でアンテナ素子３を受け入れアーム１を加工する加工溝２３を刻設する。加工溝２３の開口端部にはアーム１を加工する直角状のエッジ２４が上下に形成されている。
【００３３】
図９には、前記金型２１を備えたプレス工具２５を示す。プレス工具２５は、前記金型２１を複数（本例では４個）のアンテナ素子３の位置に対応させて配置し、支持部材２６で連結した金型ブロック２７と、アンテナ素子３を挿入したアーム１を位置決めする位置決めブロック２８とよりなる。位置決めブロック２８は支持板２９の内面側に図示してないが、アーム１の端部に内嵌まりする断面円状の位置決めピンが突設してある。
【００３４】
図８により、アンテナ素子３のアーム１の固定方法について説明する。
【００３５】
まず、アンテナ素子３をアーム１の挿通孔２に挿入する。
【００３６】
位置決めブロック２８でこのアーム１を固定しておき、金型ブロック２７のそれぞれの金型２１の貫通孔２２をアンテナ素子３の両端部に内嵌めする。
【００３７】
続いて、それぞれの金型２１をアーム１に向けて摺動させ、アーム１が加工溝２３内に位置し、金型２１をアーム１へ押し付けると、アーム１が加工溝２３のエッジ２４で変形し挿通孔２が変形してアンテナ素子３を固定する。
【００３８】
アーム１に金型２１を押し付けた後のアーム１の外観は、アーム１と金型２１の接触が円曲面どうしの接触のため、わずかに変形しぼやけた状態（符号３０で変形部を示す）である。
【００３９】
加工後は、金型２１を後退させる。
【００４０】
次に、前述のプレス加工の断面図を図１０に示す。
【００４１】
上の図はアーム１の挿通孔２にアンテナ素子３を挿入した状態を示す。
【００４２】
中の図は、金型２１でアーム１をプレス加工し、挿通孔２が変形し、変形部３０がアンテナ素子３０にくい込んで固定した状態である。
【００４３】
下の図は、金型２１を破線で示し、金型２１にアーム１・アンテナ素子３の加工状態を示し、アーム１の挿通孔２が変形し、変形部３０がアンテナ素子３にくい込んで固定した状態である。
【００４４】
図１１は、金型２１にアーム１・アンテナ素子３の加工状態を示す斜視図である。
【００４５】
アーム１と金型２１の接触が、両者が円曲面どうしの接触のため、わずかに変形し、変形部３０もわずかであることを示すものである。
【００４６】
【発明の効果】
本発明は、上述のように、アームの挿通孔にアンテナ素子を挿通させ、アームにアンテナ素子を直角状に固定するアンテナ素子の固定方法であって、アンテナ素子が挿通されアームと当接する挿通孔の近傍をプレス加工して挿通孔を変形させてアンテナ素子とアームとを接触・固定させるようにしたアンテナ素子の固定方法であるので、矢を通す手間と油分を除く工程を省略してコストダウンが図ることができる。
【００４７】
又、本発明は、具体的には、プレス加工が挿通孔の近傍の上下を加圧するアンテナ素子の固定方法とした。
【００４８】
更に、本発明は、具体的には、プレス加工が挿通孔の近傍の上方の２箇所と下方の２箇所を加圧するアンテナ素子の固定方法とした。
【００４９】
更に又、本発明は、具体的には、アンテナ素子が挿入された箇所のアームの全周を、アンテナ素子の挿入部を除き、アームを縮径させるように加工するアンテナ素子の固定方法とした。
【００５０】
更にその上に、本発明は、具体的には、縮径部の幅がアンテナ素子と同幅或いはアンテナ素子幅内に複数の縮径部としたアンテナ素子の固定方法とした。
【００５１】
更にその上に、本発明は、金型で加工する方法として、アームと直交するように配置する円柱体に軸方向と直交するアンテナ素子を受け入れる貫通孔穿設し、貫通孔の端部に貫通孔と直交しアンテナ素子を受け入れアームを加工する加工溝を刻設した金型を用いる固定方法であって、アンテナ素子の両端部にそれぞれ金型の貫通孔を内嵌めし、金型をアームに向けて摺動させてアームを押圧し、加工溝のエッジで挿通孔を変形させるようにプレス加工するアンテナ素子の固定方法とした。
【００５２】
更にその上に、本発明は、上記の方法により製作されたアームに固定されたアンテナ素子である。
【図面の簡単な説明】
【図１】本発明のアームの挿通孔の近傍の上下を加圧してアームにアンテナ素子を組付けた状態を示すアーム部断面の正面図と側面図の二面図である。
【図２】本発明のアームの挿通孔の近傍の上方の２箇所と下方の２箇所とを加圧してアームにアンテナ素子を組付けた状態を示す正面図と側面図の二面図である。
【図３】本発明のアンテナ素子が挿入された箇所のアームの全周を、アンテナ素子の挿入部を除き、アームを縮径させるように加工した状態を示すアーム部断面の正面図と側面図の二面図である。
【図４】本発明の縮径部の幅がアンテナ素子幅内に２個の縮径部を形成した状態の正面図である。
【図５】本発明の２個の円環凹部を設けた状態を示すアンテナ素子の正面図である。
【図６】本発明の方法により製作されたアームに固定されたアンテナ素子を用いたアンテナの二面の斜視図である。
【図７】従来のアームの挿通孔にアンテナ素子を挿通し抜け外れないように矢で加工した状態の正面図と側面図との二面図である。
【図８】本発明のアンテナ素子の各工程を示す斜視図である。
【図９】本発明の金型を備えたプレス工具の斜視図である。
【図１０】本発明のプレス加工の断面図である。
【図１１】本発明のプレス加工の斜視図である。
【符号の説明】
１…アーム
２…挿通孔
３…アンテナ素子
２１…金型
２２…貫通孔
２３…加工溝
２４…エッジ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for fixing an antenna element and an antenna element fixed to an arm.
[0002]
[Prior art]
A conventional method of fixing an antenna element to an arm will be described with reference to FIG.
[0003]
After the antenna element 103 is inserted through the insertion hole 102 of the arm 101, an arrow having a cross section larger than the gap is simultaneously passed vertically through the gap between the inner wall of the arm 101 and the antenna element 103 inside the arm 101 as shown in the figure. The antenna element 103 is deformed.
[0004]
When the antenna element 103 is crushed in the vertical direction by an arrow, the cross section of the antenna element 103 expands in the horizontal direction and becomes an elliptical shape, and the expanded portion comes into contact with the insertion hole 102, and the antenna element 103 inside the arm 101 also expands. The element 103 is not displaced in the left-right direction of the arm 101, and the antenna element 103 is fixed to the arm 101.
[0005]
[Problems to be solved by the invention]
Disadvantages of the above-described conventional method of fixing the antenna element 103 to the arm 101 are that it takes time to pass an arrow through the gap between the inner wall of the arm 101 and the antenna element 103 inside the arm 101, and the antenna element 103 when the arrow is pulled out. In order to eliminate breakage of the arm 101, a large amount of oil is required for lubrication. After caulking, a degreasing step such as pickling for removing oil inside the arm 101 is required.
[0006]
[Means for Solving the Problems]
Therefore, in view of the above circumstances, in order to reduce the time and labor for passing an arrow and the step of removing oil, the present invention allows the antenna element to be inserted into the insertion hole of the arm and the antenna element to be perpendicular to the arm. A method of fixing an antenna element to be fixed, wherein an antenna element is inserted and deformed through the vicinity of an insertion hole that is in contact with an arm so that the antenna element is brought into contact with and fixed to the arm. Was fixed.
[0007]
In addition, the present invention specifically provides a method for fixing an antenna element in which press working presses the upper and lower portions near an insertion hole.
[0008]
Furthermore, the present invention specifically provides a method for fixing an antenna element in which press working presses two upper portions and two lower portions near an insertion hole.
[0009]
Furthermore, the present invention specifically relates to a method for fixing an antenna element in which the entire circumference of the arm where the antenna element is inserted is processed so as to reduce the diameter of the arm, excluding the insertion portion of the antenna element. .
[0010]
Furthermore, the present invention specifically provides a method for fixing an Anna element in which the width of the reduced diameter portion is the same as the antenna element or a plurality of reduced diameter portions within the width of the antenna element.
[0011]
Furthermore, according to the present invention, as a method of processing with a metal mold, a through-hole for receiving an antenna element orthogonal to the axial direction is formed in a cylindrical body arranged perpendicular to the arm, and an end of the through-hole is provided. This is a fixing method using a mold in which a machining groove for machining an arm that receives an antenna element and is orthogonal to the through hole is formed in the portion, and the through holes of the mold are respectively fitted into both ends of the antenna element. Is slid toward the arm to press the arm and to press the arm so as to deform the insertion hole at the edge of the processing groove.
[0012]
Still further, the present invention is an antenna element fixed to an arm manufactured by the above method.
[0013]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will be described in detail below based on specific embodiments shown in the accompanying drawings.
[0014]
The present invention relates to a fixing method of the antenna element 3 in which the antenna element 3 is inserted into the insertion hole 2 of the arm 1 and the antenna element 3 is fixed to the arm 1 at a right angle, wherein the antenna element 3 is inserted through the insertion hole 2. This is a method of fixing an antenna element in which the vicinity of an insertion hole 2 which is in contact with an arm 1 is pressed to deform the insertion hole 2 so that the antenna element 3 and the arm 1 are brought into contact and fixed.
[0015]
In the present invention, the arm 1 near the insertion hole 2 is pressed by pressing without using an arrow, and the insertion hole 2 is deformed to be in contact with and fixed thereto.
[0016]
As the press working of the arm 1 near the insertion hole 2, there is the following.
[0017]
First, as shown in FIG. 1, for example, an aluminum antenna element 3 having an outer diameter of 8 mm is inserted into the vicinity of an insertion hole 2 having a hole diameter of 8.1 mm of an aluminum arm 1 having an outer diameter of 22 mm by pressing. The upper and lower portions 3 are pressurized. The pressurized portions are the upper arc portion near the insertion hole 2 of the arm 1 indicated by reference numeral 11 and the lower arc portion near the insertion hole 2 of the arm 1 indicated by reference numeral 12.
[0018]
The reduced diameter of the arm 1 is set as follows. The hole diameter of the insertion hole 2 of the arm 1 is 8.1 mm, the outer diameter of the antenna element 3 is 8 mm, and the gap between the hole diameter of the insertion hole 2 and the outer diameter of the antenna element 3 is 0.1 mm. If the reduced diameter of the arm 1 is 1.5 times the gap, 0.1 mm × 1.5 = 0.15 mm. Then, the hole diameter of the insertion hole 2 of the arm 1 is 8.1 mm−0.15 mm = 7.95 mm, and the antenna element 3 having the hole diameter of 8 mm is pressed by the insertion hole 2 over the entire outer circumference. . If the reduced diameter of the arm 1 is 1.0 times the gap, then 0.1 mm × 1.0 = 0.1 mm. Then, the hole diameter of the insertion hole 2 of the arm 1 is 8.1 mm−0.1 mm = 8 mm, and the antenna element 3 is not pressed by the insertion hole 2.
[0019]
If the reduced diameter of the arm 1 is one time the gap, the antenna element 3 may come out of the insertion hole 2 of the arm 1. Most preferably, it is about 1.5 to 2 times so that this does not occur. When it is tripled, considerable pressurization is required, and the vicinity of the insertion hole 2 is deformed.
[0020]
The antenna element 3 is inserted through the insertion hole 2 of the arm 1, the center position of the antenna element 3 is determined, and two upper and lower portions are simultaneously pressed with an arc-shaped mold from above and below to reduce the diameter of the insertion hole 2. Due to the pressurization at this time, the antenna element 3 also contracts at two upper and lower locations where it comes into contact with the arm 1, and the antenna element 3 and the arm 1 are fixed in contact with each other, and are electrically and mechanically stable.
[0021]
As shown in FIG. 6, in the case of an antenna composed of a large number of antenna elements, a plurality of antenna elements 3 are inserted through the insertion holes 2 of the arm 1, the antenna element 3 is set in a lower mold, and the center of the antenna element 3 is positioned. I do.
[0022]
All the antenna elements 3 can be processed simultaneously by the upper die and the lower die mounted on the press machine.
[0023]
In the present invention, there is no fear of breakage of the antenna element or the like, and no oil is required. Therefore, there is no oil attached in the processing step, and the degreasing step can be simplified.
[0024]
Next, what is shown in FIG. 2 presses two upper places and two lower places near the insertion hole 2 by press working. Reference numeral 13 denotes two upper pressurized portions, and reference numeral 14 denotes two lower pressurized portions. The antenna element 3 can be securely contacted and fixed at four locations on the entire circumference (every 90 degrees on the outer circumference).
[0025]
In FIG. 3, the entire circumference of the arm 1 where the antenna element 3 is inserted is processed so as to reduce the diameter of the arm 1 except for the insertion portion of the antenna element 3.
[0026]
Reference numeral 15 denotes a reduced diameter portion. This is an example in which the size is reduced together with the insertion hole 2 and the antenna element 3. The diameter is reduced by 8 mm, which is the width of the antenna element 3.
[0027]
As shown in FIG. 4 is a width of the reduced diameter portion has a two reduced diameter portion 16 1, 16 2 to the antenna element 3 in width 8 mm.
[0028]
Figure 5 shows an annular recess 17 1, 17 2 of the contact portion of the arm 1 of the antenna element 3. Antenna element 3 when the arm 1 by pressing from upper and lower also dents are processed, are formed annular recesses 17 1, 17 2, offset to the left and right of the antenna element 3 is eliminated.
[0029]
In the present invention, as shown in FIG. 6, the antenna element 3 fixed to the arm 1 manufactured by the above method constitutes a Yagi-shaped antenna and is used as an antenna for receiving television waves.
[0030]
A method for fixing an antenna element according to claim 6 will be described with reference to FIGS.
[0031]
FIG. 8 shows each step of the method of fixing the antenna element, and the mold 21 used therein is also shown in detail. First, the mold 21 will be described.
[0032]
The metal mold 21 is provided with a through hole 22 for receiving an antenna element 3 of an aluminum pipe orthogonal to the axial direction AA in a metal cylindrical body arranged to be orthogonal to the arm 1 of the aluminum pipe. A processing groove 23 for receiving the antenna element 3 and processing the arm 1 is formed at the end of the hole 22 in a direction perpendicular to the through hole 22 and in a horizontal state. A right-angled edge 24 for processing the arm 1 is formed vertically at the open end of the processing groove 23.
[0033]
FIG. 9 shows a press tool 25 provided with the mold 21. The press tool 25 includes a mold block 27 connected to a plurality of (four in this example) antenna elements 3 corresponding to the positions of the plurality of antenna elements 3, a mold block 27 connected by a support member 26, and an arm into which the antenna element 3 is inserted. 1 comprises a positioning block 28 for positioning. Although the positioning block 28 is not shown on the inner surface side of the support plate 29, a positioning pin having a circular cross section that fits inside the end of the arm 1 is protruded.
[0034]
A method for fixing the arm 1 of the antenna element 3 will be described with reference to FIG.
[0035]
First, the antenna element 3 is inserted into the insertion hole 2 of the arm 1.
[0036]
The arm 1 is fixed by the positioning block 28, and the through holes 22 of the respective molds 21 of the mold block 27 are fitted into both ends of the antenna element 3.
[0037]
Subsequently, each mold 21 is slid toward the arm 1, and the arm 1 is positioned in the machining groove 23. When the mold 21 is pressed against the arm 1, the arm 1 is deformed at the edge 24 of the machining groove 23. The insertion hole 2 is deformed to fix the antenna element 3.
[0038]
The appearance of the arm 1 after pressing the mold 21 against the arm 1 is slightly deformed and blurred because the contact between the arm 1 and the mold 21 is between circular curved surfaces (a deformed portion is indicated by reference numeral 30). It is.
[0039]
After processing, the mold 21 is retracted.
[0040]
Next, FIG. 10 shows a cross-sectional view of the above-mentioned press working.
[0041]
The upper figure shows a state where the antenna element 3 is inserted into the insertion hole 2 of the arm 1.
[0042]
The middle drawing shows a state in which the arm 1 is pressed by the mold 21, the insertion hole 2 is deformed, and the deformed portion 30 is fixed in the antenna element 30.
[0043]
The lower drawing shows the mold 21 by a broken line, shows the processing state of the arm 1 and the antenna element 3 in the mold 21, the insertion hole 2 of the arm 1 is deformed, and the deformed portion 30 is fixed by being inserted into the antenna element 3. It has been done.
[0044]
FIG. 11 is a perspective view showing a processing state of the arm 1 and the antenna element 3 in the mold 21.
[0045]
This indicates that the contact between the arm 1 and the mold 21 is slightly deformed due to the contact between the two curved surfaces, and the deformed portion 30 is also slight.
[0046]
【The invention's effect】
The present invention, as described above, is a method of fixing an antenna element in which an antenna element is inserted into an insertion hole of an arm and the antenna element is fixed to the arm at a right angle, and the insertion hole through which the antenna element is inserted and which comes into contact with the arm. The antenna element is fixed in such a way that the antenna element and the arm are brought into contact with each other and fixed by pressing and deforming the insertion hole in the vicinity of the antenna. Can be achieved.
[0047]
In addition, the present invention specifically provides a method for fixing an antenna element in which press working presses the upper and lower portions near an insertion hole.
[0048]
Furthermore, the present invention specifically provides a method for fixing an antenna element in which press working presses two upper portions and two lower portions near an insertion hole.
[0049]
Furthermore, the present invention specifically relates to a method for fixing an antenna element in which the entire circumference of the arm where the antenna element is inserted is processed so as to reduce the diameter of the arm, excluding the insertion portion of the antenna element. .
[0050]
Furthermore, the present invention specifically provides a method for fixing an antenna element in which the width of the reduced diameter portion is the same as that of the antenna element or a plurality of reduced diameter portions within the width of the antenna element.
[0051]
Furthermore, according to the present invention, as a method of processing with a mold, a through hole for receiving an antenna element orthogonal to the axial direction is formed in a cylindrical body arranged perpendicular to the arm, and a through hole is formed at an end of the through hole. This is a fixing method using a mold that has a machining groove for receiving the antenna element orthogonal to the hole and machining the arm.The through holes of the mold are fitted into both ends of the antenna element, and the mold is attached to the arm. In this method, the arm is pressed by sliding in the direction of the arrow, and pressed to deform the insertion hole at the edge of the processing groove.
[0052]
Still further, the present invention is an antenna element fixed to an arm manufactured by the above method.
[Brief description of the drawings]
FIG. 1 is a front view and a side view of a cross section of an arm showing a state in which an antenna element is mounted on the arm by pressing the upper and lower portions near an insertion hole of the arm of the present invention.
FIG. 2 is a front view and a side view showing a state in which an antenna element is mounted on an arm by pressing two upper and two lower positions near an insertion hole of the arm of the present invention. .
FIG. 3 is a front view and a side view of a cross section of an arm showing a state in which the entire circumference of the arm where the antenna element of the present invention is inserted is processed so as to reduce the diameter of the arm except for the insertion part of the antenna element. FIG.
FIG. 4 is a front view of a state in which two reduced diameter portions are formed within the width of the antenna element according to the present invention.
FIG. 5 is a front view of the antenna element in a state where two annular concave portions of the present invention are provided.
FIG. 6 is a perspective view of two sides of an antenna using an antenna element fixed to an arm manufactured by the method of the present invention.
FIG. 7 is a front view and a side view of a state in which an antenna element is inserted into an insertion hole of a conventional arm and is processed by an arrow so as not to come off and be removed.
FIG. 8 is a perspective view showing each step of the antenna element of the present invention.
FIG. 9 is a perspective view of a press tool provided with the mold of the present invention.
FIG. 10 is a sectional view of the press working of the present invention.
FIG. 11 is a perspective view of the press working of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Arm 2 ... Insertion hole 3 ... Antenna element 21 ... Die 22 ... Through hole 23 ... Processing groove 24 ... Edge

Claims (7)

アームの挿通孔にアンテナ素子を挿通させ、アームにアンテナ素子を直角状に固定するアンテナ素子の固定方法であって、アンテナ素子が挿通されアームと当接する挿通孔の近傍をプレス加工して挿通孔を変形させてアンテナ素子とアームとを接触・固定させるようにしたアンテナ素子の固定方法。A method of fixing an antenna element in which an antenna element is inserted into an insertion hole of an arm and the antenna element is fixed to the arm at a right angle. And fixing the antenna element to the arm by contacting and fixing the arm. プレス加工が挿通孔の近傍の上下を加圧する請求項１記載のアンテナ素子の固定方法。2. The method for fixing an antenna element according to claim 1, wherein the pressing process presses up and down near the insertion hole. プレス加工が挿通孔の近傍の上方の２箇所と下方の２箇所を加圧する請求項１記載のアンテナ素子の固定方法。2. The method for fixing an antenna element according to claim 1, wherein the press working presses two upper portions and two lower portions near the insertion hole. アンテナ素子が挿入された箇所のアームの全周を、アンテナ素子の挿入部を除き、アームを縮径させるように加工する請求項１記載のアンテナ素子の固定方法。2. The method for fixing an antenna element according to claim 1, wherein the entire circumference of the arm where the antenna element is inserted is processed so as to reduce the diameter of the arm except for the insertion part of the antenna element. 縮径部の幅がアンテナ素子と同幅或いはアンテナ素子幅内に複数の縮径部とした請求項４記載のアンナナ素子の固定方法。The method of fixing an Anna element according to claim 4, wherein the width of the reduced diameter portion is the same as the antenna element or a plurality of reduced diameter portions within the width of the antenna element. アームと直交するように配置する円柱体に軸方向と直交するアンテナ素子を受け入れる貫通孔穿設し、貫通孔の端部に貫通孔と直交しアンテナ素子を受け入れアームを加工する加工溝を刻設した金型を用いる固定方法であって、アンテナ素子の両端部にそれぞれ金型の貫通孔を内嵌めし、金型をアームに向けて摺動させてアームを押圧し、加工溝のエッジで挿通孔を変形させるようにプレス加工する請求項１のアンテナ素子の固定方法。A through-hole for receiving an antenna element orthogonal to the axial direction is drilled in a cylindrical body arranged perpendicular to the arm, and a processing groove is formed at the end of the through-hole for receiving the antenna element orthogonal to the through-hole and processing the arm. In this method, a through-hole of the mold is fitted in each end of the antenna element, and the mold is slid toward the arm to press the arm, and inserted through the edge of the processing groove. 2. The method for fixing an antenna element according to claim 1, wherein pressing is performed so as to deform the hole. 請求項１、２、３、４、５或いは６の方法により製作されたアームに固定されたアンテナ素子。An antenna element fixed to an arm manufactured by the method of claim 1, 2, 3, 4, 5 or 6.
JP2003123039A 2003-04-28 2003-04-28 Method of fixing antenna element and antenna element fixed to arm Expired - Fee Related JP4393101B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011018969A1 (en) * 2009-08-11 2011-02-17 マスプロ電工株式会社 Antenna and antenna production method
WO2013077244A1 (en) * 2011-11-21 2013-05-30 マスプロ電工株式会社 Antenna manufacturing method and antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011018969A1 (en) * 2009-08-11 2011-02-17 マスプロ電工株式会社 Antenna and antenna production method
WO2013077244A1 (en) * 2011-11-21 2013-05-30 マスプロ電工株式会社 Antenna manufacturing method and antenna
JPWO2013077244A1 (en) * 2011-11-21 2015-04-27 マスプロ電工株式会社 Antenna manufacturing method and antenna

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