JP4510727B2 - Antenna coil winding structure - Google Patents

Antenna coil winding structure Download PDF

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JP4510727B2
JP4510727B2 JP2005249582A JP2005249582A JP4510727B2 JP 4510727 B2 JP4510727 B2 JP 4510727B2 JP 2005249582 A JP2005249582 A JP 2005249582A JP 2005249582 A JP2005249582 A JP 2005249582A JP 4510727 B2 JP4510727 B2 JP 4510727B2
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antenna
antenna wire
support member
wire support
coil
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JP2007067671A (en
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利幸 杉浦
俊介 中根
慶太 高橋
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Kojima Industries Corp
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本発明は、アンテナ線支持部材にアンテナ線をコイル状に巻回したアンテナロッドにおけるアンテナコイルの巻き付け構造に関する。   The present invention relates to an antenna coil winding structure in an antenna rod in which an antenna wire is wound around an antenna wire support member.

従来のアンテナコイルの巻き付け構造については、図2(a)に見られるように、横断面形状が円形のアンテナ線支持部材2’の外周にアンテナ線1をコイル状に巻回した構造のものがあり、或いは、図2(b)に見られるように、円形の横断面のアンテナ線支持部材の欠点であった巻き線ピッチの乱れをなくして安定した特性を確保できるようにその断面形状を多角形に改良したアンテナ線支持部材2”の外周にアンテナ線1を巻回した構造のものが特許文献1に開示されている。   As shown in FIG. 2 (a), the conventional antenna coil winding structure has a structure in which the antenna wire 1 is wound around the outer periphery of the antenna wire support member 2 'having a circular cross section. Or, as shown in FIG. 2 (b), the cross-sectional shape is increased so that stable characteristics can be ensured by eliminating the disturbance of the winding pitch, which was a drawback of the antenna wire support member having a circular cross section. Patent Document 1 discloses a structure in which an antenna wire 1 is wound around the outer periphery of a rectangular antenna wire support member 2 ″.

一方、ユーザーからのニーズとして、アンテナロッドのコンパクト化技術が求められている。しかし、アンテナコイルの最適長さは、捕捉しようとする電波の波長により決定されるので、アンテナロッドのコンパクト化については、結果としてアンテナコイルの長さを減じることになっては意味がない。すなわち、同じ長さのアンテナ線支持部材に従来よりも長いアンテナ線を巻き付けることができる技術、言い換えれば、従来のアンテナ線の巻き付け長さを維持しつつアンテナ線支持部材を短くすることができる技術が求められている。   On the other hand, antenna rod compact technology is required as a user's need. However, since the optimal length of the antenna coil is determined by the wavelength of the radio wave to be captured, it is meaningless to make the antenna rod compact as a result of reducing the length of the antenna coil. That is, a technique that can wind an antenna wire that is longer than the conventional antenna wire support member around the same length, in other words, a technique that can shorten the antenna wire support member while maintaining the winding length of the conventional antenna wire. Is required.

また、アンテナ線支持部材の長さは、アンテナコイルの長さ、コイル径、巻きピッチ、アンテナ線支持部材の径によって決まってしまう。言い換えると、従来技術においては、アンテナコイルの長さ、コイル径、巻きピッチ、アンテナ線支持部材の径のいずれかを変えなければアンテナ線支持部材の長さを短くすることはできない。   Further, the length of the antenna wire support member is determined by the length of the antenna coil, the coil diameter, the winding pitch, and the diameter of the antenna wire support member. In other words, in the prior art, the length of the antenna wire support member cannot be shortened without changing any of the length of the antenna coil, the coil diameter, the winding pitch, and the diameter of the antenna wire support member.

しかし、アンテナコイルの長さを短くすることは、捕捉しようとする電波に対するアンテナコイルの最適長さの確保との関係で得策ではなく、巻き線ピッチについてもインダクタンスその他の関係で最適ピッチをむやみに変更するのは得策ではない。また、コイル径或いはアンテナ線支持部材の径を太くすれば従来のアンテナ線の巻き付け長さを維持しつつアンテナ線支持部材を短くすることができるが、このことはアンテナ線支持部材の生産コストのアップとなるとともに結果としてコンパクト化に反することとなってしまうという問題がある。   However, shortening the length of the antenna coil is not a good idea in terms of ensuring the optimum length of the antenna coil for the radio wave to be captured. It is not a good idea to change it. Further, if the coil diameter or the diameter of the antenna wire support member is increased, the antenna wire support member can be shortened while maintaining the winding length of the conventional antenna wire. As a result, there is a problem that it becomes contrary to downsizing as a result.

特開2002−330017号公報JP 2002-330017 A

本発明は、上記従来技術が有する問題点を解決しようとするものであり、アンテナコイルの長さ、コイル径、巻きピッチ、アンテナ線支持部材の径などを変更することなしに、同じ長さのアンテナ線支持部材に従来よりも長いアンテナ線を巻き付けることができる、或いは、従来のアンテナ線の巻き付け長さを維持しつつアンテナ線支持部材を短くすることができるアンテナロッドにおけるアンテナコイルの巻き付け構造を提供するものである。   The present invention is intended to solve the above-mentioned problems of the prior art, and without changing the length of the antenna coil, the coil diameter, the winding pitch, the diameter of the antenna wire support member, etc. An antenna coil winding structure in an antenna rod capable of winding an antenna wire longer than the conventional one around the antenna wire support member or shortening the antenna wire support member while maintaining the conventional antenna wire winding length It is to provide.

請求項1のアンテナコイルの巻き付け構造は、柱状のアンテナ線支持部材にアンテナ線をコイル状に巻回したアンテナコイルの巻き付け構造において、前記アンテナ線支持部材の横断面外周部は凹凸部を備えており、前記アンテナ線は前記アンテナ線支持部材の外周面の形状に沿ってコイル状に巻回されていることを特徴とするものである。   The antenna coil winding structure according to claim 1 is an antenna coil winding structure in which an antenna wire is wound in a coil shape around a columnar antenna wire support member, and an outer peripheral portion of the cross section of the antenna wire support member has an uneven portion. The antenna wire is wound in a coil shape along the shape of the outer peripheral surface of the antenna wire support member.

本発明は、以上のような構成であるから、特に、アンテナ線支持部材の横断面外周部に凹凸部を備えたことにより、同じ直径で横断面形状が単に円形或いは多角形である従来のアンテナ線支持部材に比較して横断面外周部の長さをより長くすることができ、アンテナ線は同じ長さのアンテナ線支持部材で従来よりも長く形成された外周面の形状に沿ってコイル状に巻回されている。このため、アンテナコイルの長さ、コイル径、巻きピッチ、アンテナ線支持部材の径などを変更することなしに、最適の巻き付け条件を維持しながら、同じ長さのアンテナ線支持部材に従来よりも長いアンテナ線を巻き付けることができ、或いは、従来のアンテナ線の巻き付け長さを維持しつつアンテナ線支持部材を短くすることができるという効果を奏するものである。これにより、アンテナロッドの大幅なコンパクト化を図ることができる。   Since the present invention is configured as described above, in particular, by providing an uneven portion on the outer peripheral portion of the cross section of the antenna wire support member, the conventional antenna having the same diameter and the cross sectional shape is simply circular or polygonal. Compared to the wire support member, the length of the outer peripheral portion of the cross section can be made longer, and the antenna wire is coiled along the shape of the outer peripheral surface formed longer than the conventional wire support member of the same length It is wound around. Therefore, without changing the length of the antenna coil, the coil diameter, the winding pitch, the diameter of the antenna wire support member, etc., while maintaining the optimum winding conditions, the antenna wire support member of the same length can be used. A long antenna wire can be wound, or the antenna wire supporting member can be shortened while maintaining the winding length of the conventional antenna wire. Thereby, the antenna rod can be greatly downsized.

請求項2の発明は、前記凹凸部は、前記アンテナ線支持部材の横断面外周部全体に配設されていることを特徴とする。   The invention according to claim 2 is characterized in that the concavo-convex portion is disposed on the entire outer peripheral portion of the cross section of the antenna wire support member.

また、本発明は、以上のような構成であるから、特に、凹凸部がアンテナ線支持部材の横断面外周部全体に配設されているので、同じ直径で横断面形状が単に円形或いは多角形である従来のアンテナ線支持部材に比較して外周の長さを最大値とすることができる。このため、アンテナコイルの長さ、コイル径、巻きピッチ、アンテナ線支持部材の径などを変更することなしに、最適の巻き付け条件を維持しながら、同じ長さのアンテナ線支持部材に巻き付けるアンテナ線の長さを最大化することができ、或いは、従来のアンテナ線の巻き付け長さを維持しつつアンテナ線支持部材の長さを最小化することができるという効果を奏するものである。これにより、アンテナロッドの一層のコンパクト化を図ることができる。   In addition, since the present invention is configured as described above, in particular, since the concavo-convex part is disposed on the entire outer periphery of the cross section of the antenna wire support member, the cross section of the same diameter is simply circular or polygonal. As compared with the conventional antenna wire support member, the length of the outer periphery can be maximized. Therefore, without changing the antenna coil length, coil diameter, winding pitch, antenna wire support member diameter, etc., the antenna wire wound around the antenna wire support member of the same length while maintaining the optimum winding conditions The length of the antenna wire support member can be maximized, or the length of the antenna wire support member can be minimized while maintaining the winding length of the conventional antenna wire. Thereby, the antenna rod can be further downsized.

以下、図1に基づいて本発明の実施形態について説明する。図1は、本発明に係るアンテナロッドを示しており、図1(a)はその側面図、図1(b)は図1(a)のA―A線における第一の実施形態の横断面図、図1(c)は図1(a)のA―A線における他の実施形態の横断面図である。なお、図2は、図1(b)及び図1(c)と同様の従来技術のアンテナロッドの横断面図を示しているが、既に「背景技術」の項で説明したので詳しい説明は省略する。なお、各横断面図においては、本発明の実施形態の理解の促進を図るため、後述するチューブ状被覆部材3については省略されている。   Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 shows an antenna rod according to the present invention, FIG. 1 (a) is a side view thereof, and FIG. 1 (b) is a cross-sectional view of the first embodiment taken along line AA of FIG. 1 (a). FIG. 1 and FIG. 1C are cross-sectional views of another embodiment taken along line AA in FIG. 2 shows a cross-sectional view of a conventional antenna rod similar to FIGS. 1 (b) and 1 (c), but since it has already been described in the section of “Background Art”, detailed description thereof is omitted. To do. In addition, in each cross-sectional view, in order to promote the understanding of the embodiment of the present invention, the tubular covering member 3 described later is omitted.

図1(a)はアンテナロッドの全体像を側面から示しており、1はアンテナ線であり、柱状の例えば樹脂製のアンテナ線支持部材2の周囲にコイル状に巻回されてアンテナコイルを構成し、その周囲を例えば樹脂製のチューブ状被覆材3で被覆している。なお、4はジョイントであり、例えば自動車側に設けられているアンテナロッド支持金具(図示されていない)に取付けられる。   FIG. 1 (a) shows an overall image of the antenna rod from the side. Reference numeral 1 denotes an antenna wire, which is wound around a columnar antenna member 2 made of resin, for example, in a coil shape to constitute an antenna coil. And the circumference | surroundings are coat | covered with the tube-shaped coating | covering material 3 made from resin, for example. Reference numeral 4 denotes a joint, which is attached to, for example, an antenna rod support fitting (not shown) provided on the automobile side.

アンテナ線支持部材2は、図1(b)に見られるように、円形をベースにその外周部の全体に複数の凹凸部を形成した横断面形状を有しており、アンテナ線(アンテナコイル)1はアンテナ線支持部材2の外周部の凹凸部に沿いながらコイル状に巻回されている。したがって、本実施形態のアンテナ線支持部材2によれば、図2(a)に見られる従来技術の単なる円形の横断面形状のアンテナ線支持部材2’の外周長さに比較して外周の長さをより長くすることができるので、同じコイル径、同じ巻きピッチ、同じアンテナ線支持部材の径などの条件で、同じ長さのアンテナ線支持部材2’に対して従来よりも長いアンテナ線を巻き付けることができる。言い換えれば、本実施形態のアンテナ線支持部材2によれば、従来のアンテナ線支持部材2’よりも短いアンテナ線支持部材2を使用して従来と同じ長さのアンテナ線(アンテナコイル)1を巻回することができるものである。   As shown in FIG. 1 (b), the antenna wire support member 2 has a cross-sectional shape in which a plurality of concavo-convex portions are formed on the entire outer periphery of a circular base, and an antenna wire (antenna coil). Reference numeral 1 is wound in a coil shape along an uneven portion on the outer periphery of the antenna wire support member 2. Therefore, according to the antenna line support member 2 of the present embodiment, the outer peripheral length is longer than the outer peripheral length of the antenna line support member 2 ′ having a simple circular cross-sectional shape of the prior art shown in FIG. Since the length of the antenna wire can be made longer, an antenna wire longer than the conventional one can be provided to the antenna wire support member 2 ′ having the same length under conditions such as the same coil diameter, the same winding pitch, and the same antenna wire support member diameter. Can be wound. In other words, according to the antenna wire support member 2 of the present embodiment, the antenna wire (antenna coil) 1 having the same length as the conventional antenna wire support member 2 is used by using the antenna wire support member 2 shorter than the conventional antenna wire support member 2 ′. It can be wound.

図1(b)は、本発明の別の実施形態を示しており、この場合のアンテナ線支持部材2は四角形をベースにその外周部の全体に複数の凹凸部を形成した横断面形状を有しており、同様に、アンテナ線(アンテナコイル)1はアンテナ線支持部材2の外周部の凹凸部に沿いながらコイル状に巻回されている。したがって、本実施形態のアンテナ線支持部材2によれば、図2(b)に見られる従来技術の単なる四角形の横断面形状のアンテナ線支持部材2”の外周長さに比較して外周の長さをより長くすることができるので、同じコイル径、同じ巻きピッチ、同じアンテナ線支持部材の径などの条件で、同じ長さのアンテナ線支持部材2”に対して従来よりも長いアンテナ線を巻き付けることができる。言い換えれば、本実施形態のアンテナ線支持部材2によれば、従来のアンテナ線支持部材2”よりも短いアンテナ線支持部材2を使用して従来と同じ長さのアンテナ線(アンテナコイル)1を巻回することができるものである。   FIG. 1B shows another embodiment of the present invention. In this case, the antenna wire support member 2 has a cross-sectional shape in which a plurality of concavo-convex portions are formed on the entire outer periphery of a square base. Similarly, the antenna wire (antenna coil) 1 is wound in a coil shape along the uneven portion of the outer peripheral portion of the antenna wire support member 2. Therefore, according to the antenna wire support member 2 of the present embodiment, the outer circumference length is longer than the outer circumference length of the antenna wire support member 2 ″ having a simple rectangular cross-sectional shape of the prior art shown in FIG. Since the length of the antenna wire can be made longer, an antenna wire longer than that of the conventional antenna wire support member 2 ″ having the same coil diameter, the same winding pitch, and the same antenna wire support member diameter can be used. Can be wound. In other words, according to the antenna wire support member 2 of the present embodiment, the antenna wire (antenna coil) 1 having the same length as the conventional antenna wire support member 2 is used by using the antenna wire support member 2 shorter than the conventional antenna wire support member 2 ″. It can be wound.

なお、本発明は、横断面形状のベースが円形や四角形に限定されることはなく、六角形或いはその他の形状でも構わないが、その外周部に必ず凹凸部を備えていることが不可欠の条件となる。また、凹凸部は外周部の一部に設けられても或いは外周部の全体に設けられてもよいが、外周部全体に設ける方がそのメリットは大きい。   In the present invention, the base of the cross-sectional shape is not limited to a circle or a quadrangle, and may be a hexagon or other shapes. It becomes. Moreover, although the uneven | corrugated | grooved part may be provided in a part of outer peripheral part, or may be provided in the whole outer peripheral part, the merit is larger when providing in the whole outer peripheral part.

本発明は、以上のような構成であるから、特に、アンテナ線支持部材の横断面外周部に凹凸部を備えたことにより同じ直径で横断面形状が単に円形或いは多角形である従来のアンテナ線支持部材に比較して外周の長さをより長くすることができ、アンテナ線は同じ長さのアンテナ線支持部材で従来よりも長く形成された外周面の形状に沿ってコイル状に巻回されている。このため、アンテナコイルの長さ、コイル径、巻きピッチ、アンテナ線支持部材の径などを変更することなしに、最適の巻き付け条件を維持しながら、同じ長さのアンテナ線支持部材に従来よりも長いアンテナ線を巻き付けることができ、或いは、従来のアンテナ線の巻き付け長さを維持しつつアンテナ線支持部材を短くすることができるという効果を奏するものである。これにより、アンテナロッドの大幅なコンパクト化を図ることができる。   Since the present invention is configured as described above, in particular, a conventional antenna wire having the same diameter and a simply circular or polygonal cross section by providing an uneven portion on the outer peripheral portion of the cross section of the antenna wire support member. The length of the outer circumference can be made longer than that of the supporting member, and the antenna wire is wound in a coil shape along the shape of the outer circumferential surface formed longer than the conventional antenna wire supporting member. ing. Therefore, without changing the length of the antenna coil, the coil diameter, the winding pitch, the diameter of the antenna wire support member, etc., while maintaining the optimum winding conditions, the antenna wire support member of the same length can be used. A long antenna wire can be wound, or the antenna wire supporting member can be shortened while maintaining the winding length of the conventional antenna wire. Thereby, the antenna rod can be greatly downsized.

本発明に係るアンテナロッドを示しており、図1(a)はその側面図、図1(b)は図1(a)のA―A線における第一の実施形態の拡大された横断面図、図1(c)は図1(a)のA―A線における他の実施形態の拡大された横断面図である。1 shows an antenna rod according to the present invention, FIG. 1 (a) is a side view thereof, and FIG. 1 (b) is an enlarged cross-sectional view of the first embodiment taken along line AA of FIG. 1 (a). FIG. 1 (c) is an enlarged cross-sectional view of another embodiment taken along line AA of FIG. 1 (a). 図1(b)及び図1(c)と同様の従来技術のアンテナロッドの拡大された横断面図を示している。FIG. 2 shows an enlarged cross-sectional view of a prior art antenna rod similar to FIGS. 1 (b) and 1 (c).

符号の説明Explanation of symbols

1 アンテナ線(アンテナコイル)
2、2’、2” アンテナ線支持部材
3 チューブ状被覆材
4 ジョイント
1 Antenna wire (antenna coil)
2, 2 ', 2 "Antenna wire support member 3 Tubular covering material 4 Joint

Claims (2)

柱状のアンテナ線支持部材にアンテナ線をコイル状に巻回したアンテナコイルの巻き付け構造において、前記アンテナ線支持部材の横断面外周部は凹凸部を備えており、前記アンテナ線は前記アンテナ線支持部材の外周面の形状に沿ってコイル状に巻回されていることを特徴とするアンテナコイルの巻き付け構造。   In the antenna coil winding structure in which the antenna wire is wound around the columnar antenna wire support member in a coil shape, the antenna wire support member has a concavo-convex portion on the lateral cross section, and the antenna wire is the antenna wire support member An antenna coil winding structure, wherein the antenna coil is wound in a coil shape along the shape of the outer peripheral surface of the antenna coil. 前記凹凸部は、前記アンテナ線支持部材の横断面外周部全体に配設されていることを特徴とする請求項1に記載のアンテナコイルの巻き付け構造。   2. The antenna coil winding structure according to claim 1, wherein the concavo-convex portion is disposed on the entire outer peripheral portion of the cross section of the antenna wire support member.
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JPS5528084A (en) * 1978-08-22 1980-02-28 Nippon Telegraph & Telephone Character display
JPH10215116A (en) * 1997-01-28 1998-08-11 Yokowo Co Ltd Antenna element and its manufacture
JP2002330017A (en) * 2001-05-01 2002-11-15 Kojima Press Co Ltd Coil winding structure of antenna rod

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Publication number Priority date Publication date Assignee Title
JPS5528084A (en) * 1978-08-22 1980-02-28 Nippon Telegraph & Telephone Character display
JPH10215116A (en) * 1997-01-28 1998-08-11 Yokowo Co Ltd Antenna element and its manufacture
JP2002330017A (en) * 2001-05-01 2002-11-15 Kojima Press Co Ltd Coil winding structure of antenna rod

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