JPH0326644Y2 - - Google Patents
Info
- Publication number
- JPH0326644Y2 JPH0326644Y2 JP5684683U JP5684683U JPH0326644Y2 JP H0326644 Y2 JPH0326644 Y2 JP H0326644Y2 JP 5684683 U JP5684683 U JP 5684683U JP 5684683 U JP5684683 U JP 5684683U JP H0326644 Y2 JPH0326644 Y2 JP H0326644Y2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- antenna arm
- end cap
- rib
- substantially square
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、アンテナアーム用エンドキヤツプを
有するアンテナに関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to an antenna having an end cap for an antenna arm.
従来例の構成とその問題点
従来のこの種のアンテナの一例を第１〜第３図
に示す。このアンテナは、アンテナアーム１の外
径Ｄにほぼ等しい円板部２に円筒部３を設け、こ
の円筒部３の外周にアンテナアーム１の内径ｄよ
りわずかに大きな外径d′をもつ複数段の突条４を
設けたエンドキヤツプ５を用い、これをアンテナ
アーム１の両端部に圧入するようにしていた。Configuration of Conventional Example and Its Problems An example of a conventional antenna of this type is shown in FIGS. 1 to 3. This antenna has a cylindrical part 3 on a disk part 2 that is approximately equal to the outer diameter D of the antenna arm 1, and has multiple stages on the outer periphery of the cylindrical part 3 having an outer diameter d' slightly larger than the inner diameter d of the antenna arm 1. An end cap 5 provided with a protrusion 4 was used and was press-fitted into both ends of the antenna arm 1.
ところが、アンテナを構成するアンテナアーム
１にはエレメント６等を取り付けるための多くの
取付孔７が設けられており、この取付孔７から雨
水が浸入した場合に上記のようなエンドキヤツプ
５ではアンテナアーム１内に雨水がたまり、各部
を腐食させる欠点があつた。 However, the antenna arm 1 constituting the antenna is provided with many mounting holes 7 for attaching the elements 6, etc., and if rainwater enters through the mounting holes 7, the antenna arm 1 with the above-mentioned end cap 5 There was a drawback that rainwater accumulated inside the unit and corroded various parts.
考案の目的
本考案は、上記のような従来の欠点を除去する
もので、簡単な構造でアンテナアームへの雨水の
たまりを防止することのできるアンテナを提供し
ようとするものである。Purpose of the Invention The present invention aims to eliminate the above-mentioned conventional drawbacks and to provide an antenna that has a simple structure and can prevent rainwater from accumulating on the antenna arm.
考案の構成
本考案のアンテナにおいては、用いるアンテナ
アーム用エンドキヤツプに断面略キ字状のリブを
設け、かつアンテナアーム端面に接する面に複数
個の溝を設けることにより、アンテナアーム内に
たまつた雨水を排出させるようにしたものであ
る。Structure of the invention In the antenna of the invention, the end cap for the antenna arm to be used is provided with a rib having a substantially square cross section, and a plurality of grooves are provided on the surface in contact with the end surface of the antenna arm. It is designed to drain rainwater.
実施例の説明
以上、本考案の一実施例のアンテナについて第
４，５図を参照して説明する。DESCRIPTION OF EMBODIMENTS An antenna according to an embodiment of the present invention will be described above with reference to FIGS. 4 and 5.
このアンテナにおいては、第５図に示すような
エンドキヤツプ１２を用いる。このエンドキヤツ
プ１２は、アンテナアーム１の外径Ｄにほぼ等し
い円板部８から断面略キ形状のリブ９を延出させ
て設け、このリブ９の外周にアンテナアーム１の
内径ｄよりわずかに大きな外径d′をもつ複数段の
突条１０を設けて樹脂形成品により形成する。ア
ンテナアーム１の端部にリブ９を圧入して取付け
たときにアンテナアーム１の端面に接する円板部
８の内面には、略キ形状リブ９の間に複数個の溝
１１を設けている。 This antenna uses an end cap 12 as shown in FIG. This end cap 12 is provided with a rib 9 having a substantially square cross section extending from a disk portion 8 which is approximately equal to the outer diameter D of the antenna arm 1. A plurality of ridges 10 having a large outer diameter d' are provided and formed from a resin molded product. A plurality of grooves 11 are provided between the substantially square ribs 9 on the inner surface of the disc portion 8 which comes into contact with the end surface of the antenna arm 1 when the ribs 9 are press-fitted and attached to the end of the antenna arm 1. .
このように形成したエンドキヤツプ１２を第４
図のようにアンテナアーム１の端部にリブ９を圧
入して取付けると、リブ９を断面略キ字状とし、
かつ円板部８の内面に複数個の溝１１を設けたこ
とにより、アンテナアーム１内に取付孔７等から
雨水が侵入した場合でもこのリブ９の隙間と溝１
１とから外部排出することができ、アンテナアー
ム１内に水がたまることを防止でき、腐食を防止
することができる。 The end cap 12 formed in this way is
When the rib 9 is press-fitted and attached to the end of the antenna arm 1 as shown in the figure, the rib 9 will have a substantially K-shaped cross section,
In addition, by providing a plurality of grooves 11 on the inner surface of the disc portion 8, even if rainwater enters the antenna arm 1 from the mounting hole 7, etc., the gaps between the ribs 9 and the grooves 1
1 can be discharged to the outside, preventing water from accumulating in the antenna arm 1 and preventing corrosion.
なお、断面形状の略キ字状には、〓や〓のよう
なもの、あるいは＃等の辺数の多いものも含む。 Note that the substantially square cross-sectional shape includes shapes such as 〓 and 〓, and those with a large number of sides such as #.
考案の効果
以上のように、本考案によれば、アンテナアー
ムの多くの取付孔等からアンテナアーム内に雨水
が浸入してもエンドキヤツプのリブの隙間や溝か
らその雨水を排出することができ、アンテナの各
部品の腐食を防止できる。又、屋外では外気の温
度差によるアンテナアーム内の結露現状もある
が、この溝が空気孔となり結露は乾燥されるとい
う効果が得られる。Effects of the invention As described above, according to the invention, even if rainwater enters the antenna arm through the antenna arm's many mounting holes, it can be drained from the gaps and grooves in the ribs of the end cap. , it is possible to prevent corrosion of each part of the antenna. In addition, when outdoors, there is condensation inside the antenna arm due to temperature differences in the outside air, but this groove serves as an air hole and has the effect of drying out the condensation.
第１図は一般的なアンテナの斜視図、第２図
Ａ，Ｂはそのアンテナアームの正面図および側面
図、第３図Ａ，Ｂは従来のアンテナに用いられて
いたエンドキヤツプの正面図および半切断側面
図、第４図Ａ，Ｂは本考案の一実施例におけるア
ンテナの要部の断正面図および半切断側面図、第
５図Ａ，Ｂ，Ｃはそのエンドキヤツプの正面図、
側面図および断平面図である。
１……アンテナアーム、８……円板部、９……
リブ、１０……突条、１１……溝、１２……エン
ドキヤツプ。
Figure 1 is a perspective view of a typical antenna, Figures 2A and B are front and side views of its antenna arm, and Figures 3A and B are front and side views of an end cap used in a conventional antenna. 4A and 4B are a sectional front view and a half-cut side view of the main parts of an antenna according to an embodiment of the present invention; FIGS. 5A, B, and C are a front view of its end cap;
FIG. 2 is a side view and a cross-sectional plan view. 1...Antenna arm, 8...Disc part, 9...
Rib, 10...projection, 11...groove, 12...end cap.
Claims (1)
ツプを備え、上記エンドキヤツプは、上記アンテ
ナアームの外径にほぼ等しい円板部から断面略キ
形状のリブを延出させて設け、上記リブの外周に
上記アンテナアームの内径よりわずかに大きな外
径をもつ複数段の突条を設け、上記円板部の上記
アンテナアームと接する面には、上記略キ形状の
リブの間に複数個の溝を設けたアンテナ。 The end cap includes an end cap that is inserted into the end of the antenna arm, and the end cap is provided with a rib having a substantially square cross section extending from a disk portion approximately equal to the outer diameter of the antenna arm, and a rib having a substantially square cross section is provided on the outer periphery of the rib. A plurality of protrusions having an outer diameter slightly larger than the inner diameter of the antenna arm are provided, and a plurality of grooves are provided between the substantially square ribs on the surface of the disc portion that contacts the antenna arm. antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5684683U JPS59164305U (en) | 1983-04-15 | 1983-04-15 | antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5684683U JPS59164305U (en) | 1983-04-15 | 1983-04-15 | antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59164305U JPS59164305U (en) | 1984-11-05 |
| JPH0326644Y2 true JPH0326644Y2 (en) | 1991-06-10 |
Family
ID=30187164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5684683U Granted JPS59164305U (en) | 1983-04-15 | 1983-04-15 | antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59164305U (en) |
-
1983
- 1983-04-15 JP JP5684683U patent/JPS59164305U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59164305U (en) | 1984-11-05 |
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