JPH039364Y2 - - Google Patents
Info
- Publication number
- JPH039364Y2 JPH039364Y2 JP1984003533U JP353384U JPH039364Y2 JP H039364 Y2 JPH039364 Y2 JP H039364Y2 JP 1984003533 U JP1984003533 U JP 1984003533U JP 353384 U JP353384 U JP 353384U JP H039364 Y2 JPH039364 Y2 JP H039364Y2
- Authority
- JP
- Japan
- Prior art keywords
- resonant line
- printed board
- parallel
- extension part
- uhf tuner
- 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
- 239000004020 conductor Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案はテレビジヨン受像機等において使用さ
れるUHFチユーナに関するものである。[Detailed description of the invention] (a) Industrial application field The present invention relates to a UHF tuner used in television receivers and the like.
(ロ) 従来技術
UHFチユーナの微調手段としては共振線路に
対し導体板を対向させ、それらの間隔を変えると
いう構成が採用される。(b) Prior Art As a fine adjustment means for a UHF tuner, a configuration is adopted in which a conductor plate is placed opposite the resonant line and the spacing between the conductor plates is changed.
このような従来例として実公昭58−9369号公報
や実公昭42−22004号公報が挙げられる。これら
の従来例は、いずれも可変バリコン式のUHFチ
ユーナであるが、同調素子として可変容量ダイオ
ードを用いた電子同調式のUHFチユーナの場合
にも第１図（実公昭58−55682号）に示すように
プリント板１に固定された共振線路２に対しプリ
ント板１に固定された導体板３を対向させ、その
導体板３を曲げて共振線路２との距離を変えるこ
とにより同調周波数を調整するという方法が採ら
れている。尚、第１図において、４は可変容量ダ
イオードを示す。第２図は第１図に関係する同調
回路を示す。 Examples of such prior art include Japanese Utility Model Publication No. 58-9369 and Japanese Utility Model Publication No. 42-22004. All of these conventional examples are variable capacitor type UHF tuners, but an electronically tuned UHF tuner using a variable capacitance diode as a tuning element is also used, as shown in Fig. 1 (Utility Model Publication No. 58-55682). As shown, the conductor plate 3 fixed to the printed board 1 faces the resonant line 2 fixed to the printed board 1, and the tuned frequency is adjusted by bending the conductor plate 3 and changing the distance from the resonant line 2. This method is adopted. In addition, in FIG. 1, 4 indicates a variable capacitance diode. FIG. 2 shows a tuning circuit related to FIG.
ところで上述の従来例の場合には、いずれも共
振線路とは別個の導体板を必要とするため構造的
に複雑になることと、機械的振動による導体板の
揺れがシヨツクノイズやハウリングを発生すると
いう欠点があつた。 By the way, in the case of the above-mentioned conventional examples, each requires a conductor plate separate from the resonant line, resulting in a complex structure, and the shaking of the conductor plate due to mechanical vibration generates shock noise and howling. There was a drawback.
(ハ) 考案の目的
本考案はこのような欠点を除去したUHFチユ
ーナを提供することを目的とする。(c) Purpose of the invention The purpose of the present invention is to provide a UHF tuner that eliminates such drawbacks.
(ニ) 考案の構成
本考案のUHFチユーナは、プリント板に平行
に取り付けられる共振線路に前記プリント板に平
行な延長部を一体に設け、この延長部を折り曲げ
て前記共振線路に対する間隔を調整できるように
した構成を特徴とする。(d) Structure of the invention In the UHF tuner of the invention, an extension part parallel to the printed board is integrally provided on the resonant line attached parallel to the printed board, and the interval with respect to the resonant line can be adjusted by bending this extension part. It is characterized by a configuration like this.
(ホ) 実施例
第３図において一対の脚６，６を介してプリン
ト板７に平行に取り付けられる共振線路５に延長
部８が設けられており、この延長部８は折曲され
共振線路５側に延びている。この延長部８を矢印
９で示す如くプリント板７と平行な面において動
かすと延長部８と共振線路５間の距離が変化し、
それによつて特性インピーダンスが変わるので同
調周波数の調整が行なえる。尚、１０は可変容量
ダイオードである。(e) Embodiment In FIG. 3, an extension 8 is provided on the resonant line 5 which is attached in parallel to the printed board 7 via a pair of legs 6, 6, and this extension 8 is bent so that the resonant line 5 extending to the side. When this extension part 8 is moved in a plane parallel to the printed board 7 as shown by arrow 9, the distance between the extension part 8 and the resonant line 5 changes,
This changes the characteristic impedance, making it possible to adjust the tuning frequency. Note that 10 is a variable capacitance diode.
(ヘ) 考案の効果
本考案では調整用の導体板（延長部）は共振線
路と一体構造であるため機械的振動に対して揺れ
が少なく、しかも共振線路と延長部の揺れは略同
一の動きをするため揺れに対する共振線路と延長
部の変化が少なく機械的振動によるシヨツクノイ
ズ、ハウリングの発生が極めて少なくなるという
効果がある。(f) Effects of the invention In this invention, since the conductor plate (extension part) for adjustment is integrated with the resonant line, there is little shaking due to mechanical vibration, and the vibrations of the resonant line and the extension part are almost the same movement. This has the effect of minimizing changes in the resonant line and extension portion due to shaking, and significantly reducing the occurrence of shock noise and howling due to mechanical vibration.
第１図は従来のUHFチユーナの要部斜視図で
あり、第２図はその回路図である。第３図は本考
案を実施したUHFチユーナの要部斜視図である。
５……共振線路、７……プリント板、８……延
長部。
FIG. 1 is a perspective view of the main parts of a conventional UHF tuner, and FIG. 2 is its circuit diagram. FIG. 3 is a perspective view of the main parts of a UHF tuner implementing the present invention. 5... Resonant line, 7... Printed board, 8... Extension part.
Claims (1)
５に前記プリント板７に平行な延長部８を一体に
設け、この延長部８を折り曲げて、前記プリント
板と平行な面において動かして、前記共振線路５
に対する間隔を調整できるようにしたUHFチユ
ーナ。 The resonant line 5 attached parallel to the printed board 7 is integrally provided with an extension part 8 parallel to the printed board 7, and the extended part 8 is bent and moved in a plane parallel to the printed board to form the resonant line 5.
UHF tuner with adjustable spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP353384U JPS60116727U (en) | 1984-01-13 | 1984-01-13 | UHF tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP353384U JPS60116727U (en) | 1984-01-13 | 1984-01-13 | UHF tuner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60116727U JPS60116727U (en) | 1985-08-07 |
| JPH039364Y2 true JPH039364Y2 (en) | 1991-03-08 |
Family
ID=30478246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP353384U Granted JPS60116727U (en) | 1984-01-13 | 1984-01-13 | UHF tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116727U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222191Y2 (en) * | 1973-10-25 | 1977-05-21 |
-
1984
- 1984-01-13 JP JP353384U patent/JPS60116727U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60116727U (en) | 1985-08-07 |
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