JPH02120906U - - Google Patents
Info
- Publication number
- JPH02120906U JPH02120906U JP2871489U JP2871489U JPH02120906U JP H02120906 U JPH02120906 U JP H02120906U JP 2871489 U JP2871489 U JP 2871489U JP 2871489 U JP2871489 U JP 2871489U JP H02120906 U JPH02120906 U JP H02120906U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- coil spring
- diameter
- large diameter
- antenna
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Details Of Aerials (AREA)
Description
第１図は、本考案のロツドアンテナの防水構造
の一実施例を示す切り欠き図であり、第２図は、
第１図のコイルばねの拡大断面図であり、第３図
は、ロツドナテナの外観斜視図であり、第４図は
、従来の防水構造の一例を示す第３図Ａ部の切り
欠き拡大図である。
１０……大径ロツド、１１……小径ロツド、１
２……コイルばね、１２ａ……金属線材、１２ｂ
……樹脂層。
FIG. 1 is a cutaway diagram showing an embodiment of the waterproof structure of the rod antenna of the present invention, and FIG.
FIG. 3 is an enlarged sectional view of the coil spring in FIG. 1, FIG. 3 is an external perspective view of the rod antenna, and FIG. 4 is an enlarged cutaway view of part A in FIG. 3 showing an example of a conventional waterproof structure. be. 10...Large diameter rod, 11...Small diameter rod, 1
2...Coil spring, 12a...Metal wire, 12b
...resin layer.
Claims (1)
能に挿入して伸縮自在としたロツドアンテナにお
いて、前記大径ロツドの内周と前記小径ロツドの
外周の隙間にコイルばねを介装し、このコイルば
ねは、外周が樹脂材で前記隙間の寸法とほぼ同じ
径の線材で形成されるとともに、密着巻き部分と
密着巻きでない部分とを有し、しかもコイル外径
が前記大径ロツドの内径より大きいことを特徴と
したロツドアンテナ。 (2) 前記コイルばねを、金属線材に樹脂層を被
覆した線材で形成したことを特徴とする請求項１
記載のロツドアンテナ。[Claims for Utility Model Registration] (1) In a rod antenna that is extendable and retractable by slidably inserting a small diameter rod into a cylindrical large diameter rod, the inner periphery of the large diameter rod and the outer periphery of the small diameter rod A coil spring is interposed in the gap, and this coil spring has an outer periphery made of a resin material and is formed of a wire rod having a diameter that is approximately the same as the dimension of the gap, has a tightly wound portion and a non-closely wound portion, and has a coil spring. A rod antenna characterized in that an outer diameter is larger than an inner diameter of the large diameter rod. (2) Claim 1 characterized in that the coil spring is formed of a wire rod made of a metal wire coated with a resin layer.
Rod antenna as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2871489U JPH0619203Y2 (en) | 1989-03-14 | 1989-03-14 | Rod antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2871489U JPH0619203Y2 (en) | 1989-03-14 | 1989-03-14 | Rod antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02120906U true JPH02120906U (en) | 1990-10-01 |
| JPH0619203Y2 JPH0619203Y2 (en) | 1994-05-18 |
Family
ID=31252296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2871489U Expired - Lifetime JPH0619203Y2 (en) | 1989-03-14 | 1989-03-14 | Rod antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619203Y2 (en) |
-
1989
- 1989-03-14 JP JP2871489U patent/JPH0619203Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619203Y2 (en) | 1994-05-18 |