JPS589420A - Channel selecting device - Google Patents
Channel selecting deviceInfo
- Publication number
- JPS589420A JPS589420A JP10702481A JP10702481A JPS589420A JP S589420 A JPS589420 A JP S589420A JP 10702481 A JP10702481 A JP 10702481A JP 10702481 A JP10702481 A JP 10702481A JP S589420 A JPS589420 A JP S589420A
- Authority
- JP
- Japan
- Prior art keywords
- contact surface
- tuning voltage
- channel
- contact
- preset
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
- H03J1/066—Constructional details regarding potentiometric setting of voltage or current variable reactances
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は選局装置に関するものであシ、特に電子同調チ
ューナの一軸回転式同調プリセット選局装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tuning device, and more particularly to a tuning preset tuning device of a uniaxial rotary type for an electronic tuning tuner.
従来の選局装置の１例を第１〜第３図に示す。An example of a conventional channel selection device is shown in FIGS. 1 to 3.
図に訃いて、１は一軸回転式ブリセット選局装置、２は
チャンネル軸、３は■Ｗチャンネル選定用可変抵抗器、
４はＵＨＦチャンネル選定用可変抵抗器、５はＵＨＦチ
ャンネルつまみ、６は同調電圧切替用印刷回路基板、７
はバンド切替用印刷回路基板、８はロータ、９は接点、
１０はインジケータギヤでちる。In the figure, 1 is a single-axis rotary brisset channel selection device, 2 is a channel axis, 3 is a variable resistor for W channel selection,
4 is a variable resistor for UHF channel selection, 5 is a UHF channel knob, 6 is a printed circuit board for tuning voltage switching, 7
is a printed circuit board for band switching, 8 is a rotor, 9 is a contact,
10 is the indicator gear.
一軸回転式プリセット選局装置１において、チャンネル
軸２を回転させると接点９を有するロータ８は同時に回
転される。ロータ８が回転されると、同一軸上に重ね合
わせた同調電圧切替用印刷回路基板６とバンド切替用印
刷回路基板７とのそれぞれに、前記接点９が接触させら
れてチャンネル切替えが行なわれる。In the uniaxial rotary preset channel selection device 1, when the channel shaft 2 is rotated, the rotor 8 having the contact point 9 is simultaneously rotated. When the rotor 8 is rotated, the contacts 9 are brought into contact with the tuning voltage switching printed circuit board 6 and the band switching printed circuit board 7, which are superimposed on the same axis, and channel switching is performed.
次に、他の従来例を第４〜第７図に示す。図において、
１１は一軸回転式プリセット選局装置、１２はチャンネ
ル軸、１２ａは同調電圧切替歯車、１３は■Ｆチャンネ
ル選定用可変抵抗器、１４はＵＨＦチャンネル選定用可
変抵抗器、１５は印刷回路基板、１６′ｉ？よび１７は
ディフィート切替歯車およびバンド切替歯車である。Next, other conventional examples are shown in FIGS. 4 to 7. In the figure,
11 is a uniaxial rotary preset channel selection device, 12 is a channel axis, 12a is a tuning voltage switching gear, 13 is a variable resistor for F channel selection, 14 is a variable resistor for UHF channel selection, 15 is a printed circuit board, 16 'i? and 17 are a defeat switching gear and a band switching gear.
１８は前記同調電圧切替歯車１２＆に固着された同調電
圧切替用接点、１９は前記ディフィート切替歯車に固着
されたディフィート切替用接点、２０は前記バンド切替
歯車に固着されたバンド切換用接点である。。Reference numeral 18 denotes a tuning voltage switching contact fixed to the tuning voltage switching gear 12&, 19 a defeat switching contact fixed to the defeat switching gear, and 20 a band switching contact fixed to the band switching gear. be. .
２１は同調電圧グリセノド接点面、２２は同調電圧コモ
ン接点面、２３はディフィート取出接点面、２４はディ
フィートコモン接点面、２６はバンドコモン接点面、２
７は前面板である。３３は■Ｆ低バンド切替用接点間、
３４は■Ｆ高バンド切替用接点面、３５はＵＨＦバンド
切替用接点面である。21 is a tuning voltage grisenode contact surface, 22 is a tuning voltage common contact surface, 23 is a defeat extraction contact surface, 24 is a defeat common contact surface, 26 is a band common contact surface, 2
7 is a front plate. 33 is between ■F low band switching contacts,
34 is a contact surface for switching the ■F high band, and 35 is a contact surface for switching the UHF band.
一軸回転式プリセット選局装置１１において、チャンネ
ル軸１２が回転すると、前記チャンネル軸１２と一体に
装着された同調電圧切替歯車１２ａおよび同調電圧切替
用接点１８が回転される。In the uniaxial rotary preset channel selection device 11, when the channel shaft 12 rotates, the tuning voltage switching gear 12a and the tuning voltage switching contact 18, which are integrally attached to the channel shaft 12, are rotated.
前記歯車１２ａが回転されると、これに噛み合うように
上下方向に設けられたディフィート切替歯車１６、バン
ド切替歯車１７、訃よびそれぞれの切替用接点１９．２
０が同時に回転させられる。When the gear 12a is rotated, the defeat switching gear 16, the band switching gear 17, and the respective switching contacts 19.2 are provided vertically so as to mesh with the gear 12a.
0 are rotated at the same time.
前記切替用接点１８．１９および２０が回転させられて
、それぞれの取出接点面、コモン接点面に接触すると、
これによってチャンネル切替を行なうことが出来る。When the switching contacts 18, 19 and 20 are rotated and come into contact with their respective extraction contact surfaces and common contact surfaces,
This allows channel switching.
上記２つの実施例において、ＶＩ（Ｆ 、 ＵＨＦのそ
れぞれの可変抵抗器３．４あるいは、１３．１４は予め
、各チャンネル毎にそれぞれの同調電圧にグリセットし
ておく。In the above two embodiments, the variable resistors 3.4 and 13.14 of VI(F and UHF) are preset to respective tuning voltages for each channel.
前者の従来例では、同調電圧切替用印刷回路基板とバン
ド切替用印刷回路基板とを重ね合わせて設けなければな
らない為、空間スペースが大きくなり、かつコスト高に
もなるという欠点があった。In the former conventional example, the printed circuit board for tuning voltage switching and the printed circuit board for band switching must be provided on top of each other, which has the disadvantage of increasing space and cost.
又、後者の従来例では、同一基板平面上に同調電圧プリ
セクト接点面、ディフィート取出接点面及びＶＨＦ −
ＵＨＦバンド切替用接点間を設けて空間スペースを小さ
くしているが、チャンネル軸と一体に設けられた歯車と
、これに噛み合う２個の歯車が必要となり、その結果、
歯車間のバックラッシ二による接点ずれが起きたり、部
品点数が多い為にコスト高になる力どの欠点があった。In addition, in the latter conventional example, the tuning voltage preselect contact surface, the defect extraction contact surface and the VHF -
Although space is reduced by providing a space between the UHF band switching contacts, a gear provided integrally with the channel shaft and two gears that mesh with this are required, and as a result,
There were drawbacks such as contact misalignment due to backlash between gears, and high costs due to the large number of parts.
本発明の目的は、前記の欠点を除去して、小さなスペー
スで、低コスＦの選局装置を提供することＫある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide a channel selection device with a small space and low cost F.
前記の目的を達成するために、本発明は同−基５ −
板平面上で、かつ同心円上に、−軸回転式プリセット選
局装置の■Ｆチャンネル同調電圧プリセット接点面、Ｖ
ＨＦ−ＵＨＦバンド切替用接点面、ディフィート取出接
点面等のすべての選局用接点面パターンを配置した点に
特徴がある。In order to achieve the above object, the present invention provides an F channel tuning voltage preset contact surface, V
It is characterized by the arrangement of all the contact surface patterns for channel selection, such as the HF-UHF band switching contact surface and the defeat extraction contact surface.
本発明の詳細な説明を具体的表実施例を用いて説明する
。第８図〜第１１図にその一実施例を示す。A detailed explanation of the present invention will be explained using specific table examples. One embodiment is shown in FIGS. 8 to 11.
第８図は本発明の一実施例の正面図、第９図はその側面
図、第１０図はその要部の分解図、第１１図は選局用接
点面パターンの説明図でおる。FIG. 8 is a front view of an embodiment of the present invention, FIG. 9 is a side view thereof, FIG. 10 is an exploded view of the main parts thereof, and FIG. 11 is an explanatory diagram of a contact surface pattern for channel selection.
図において、第６図と同一の符号は、同一または同等部
分をあられしている。２８は一軸回転式プリセット選局
装置、２９はＶＨＦチャンネル切替軸、３０はＵＨＦチ
ャンネル選定用可変抵抗器、３１は基板、３８は十Ｂ電
圧印加接点面、３９および４０は前記ＶＨＦチャンネル
切替軸２９と一体に回転するように設けられた同調電圧
切替用接点およびバンド、ディフィート切替用接点、４
１は前間板である。In the figure, the same reference numerals as in FIG. 6 represent the same or equivalent parts. 28 is a single-axis rotary preset channel selection device, 29 is a VHF channel switching shaft, 30 is a variable resistor for UHF channel selection, 31 is a substrate, 38 is a contact surface for applying a 10B voltage, 39 and 40 are the VHF channel switching shaft 29 A tuning voltage switching contact and a band provided to rotate together with the defeat switching contact, 4
1 is the front plate.
６−
同調電圧プリセット接点面２１の各々にプリセットされ
た■■゛チャンネル毎の同調電圧が、接点３９を介して
、同調電圧コモン接点面２２から取り出される。6- The tuning voltage for each channel preset on each of the tuning voltage preset contact surfaces 21 is taken out from the tuning voltage common contact surface 22 via the contact 39.
父、接点面３８には十Ｂ電圧が印加され、接点４０を介
してバンド切替用接点面３３，３４゜３５から、■Ｆ低
バンド、■ＬＦ高バンドおよびＵＨＦ’バンドの各チャ
ンネル月間ｔｉｌｉ［圧が取り出される。A voltage of 10B is applied to the contact surface 38, and from the band switching contact surfaces 33, 34° 35 through the contact 40, each channel of ■F low band, ■LF high band, and UHF' band is transmitted. pressure is extracted.
これと同時に接点４０を介してディフィート取出接点面
２３に゛〔、空チーＹンネル時にディフィーＦ処理が行
なわれるようにする。At the same time, the defeet extraction contact surface 23 is subjected to the defeet F process via the contact point 40 during the empty channel.
以上においては、接点面の配置を接点の摺動範囲および
接触面積が出来るだけ多く取れるように、電圧供給用及
び取り出し用のパターンの少ない（単純々）接点面を中
心に配置し、パターンの多い（複雑な）接点面はど外側
に配置して、接点の信頼性を高めた例について述べた。In the above, in order to maximize the sliding range and contact area of the contacts, the contact surfaces are arranged mainly on the contact surfaces with few (simplified) patterns for voltage supply and extraction, and on the contact surfaces with many patterns. We have described an example in which the (complex) contact surface is placed on the outside to increase the reliability of the contact.
しかし、このことは本発明の本質ではなく、どの接点面
をどの位置に配置するかは任意に決定できるところであ
る。However, this is not the essence of the present invention, and which contact surface is placed at which position can be arbitrarily determined.
本発明は前記のように、同一基板平面上で、かつ同心円
状に、−軸回転式ブリセット選局装置の■Ｆチャンネル
同調電圧プリセット接点面、ＶＨＦ−ＵＨＦバンド切替
用接点面、ディフィート取出接点面等のすべての選局用
接点面パターンを配置したので、空間スペースが小さく
なり、コストメリットも大きいという利点がある。As described above, the present invention provides for the -F channel tuning voltage preset contact surface, the VHF-UHF band switching contact surface, and the defect extraction of the -axis rotary preset tuning device on the same substrate plane and concentrically. Since all the contact surface patterns for channel selection, such as the contact surface, are arranged, there is an advantage that the space is small and the cost advantage is also large.
又、歯車を使用していないため歯車間のバックラッシュ
もなくなり、接点の信頼性が高くなるという利点がある
。Furthermore, since no gears are used, there is no backlash between gears, which has the advantage of increasing the reliability of the contacts.
第１図は従来の選局装置の一例の正面図、第２図はその
側面図、第３図はその要部の分解図、第４図は従来の選
局装置の他の一例の正面図、第５図はその側面図、第６
図はその要部の分解図、第７図は第６図の選局用接点面
パターンの説明図、第８図は本発明の一実施例の正面図
、第９図はその側面図、第１０図はその要部の分解図、
第１１図は第１０図の選局用接点面パターンの説明図で
ある。
２１・・・同調電圧プリセット接点１１ｉｒ、２２・・
・同調電圧コモン接点面、２３・・・ディフィート取出
接点面、２９・・・ＶＨＦチャンネル切替軸、３１・・
・基板、３３．３４・・・ＶＨＦバンド切替用接点面、
３５・・・ＵＨＦバンド切替用接点面、３８・・・十Ｂ
印加接点面、３９・・・同調電圧切替用接点、４０・・
・バンド、ディフィート切替用接点。
代理人弁理士 平 木 道 人
−９＝
■１図
第３図
第４図 第５図Fig. 1 is a front view of an example of a conventional channel selection device, Fig. 2 is a side view thereof, Fig. 3 is an exploded view of its main parts, and Fig. 4 is a front view of another example of a conventional channel selection device. , Figure 5 is its side view, Figure 6 is its side view.
7 is an explanatory diagram of the channel selection contact surface pattern of FIG. 6, FIG. 8 is a front view of an embodiment of the present invention, FIG. 9 is a side view thereof, and FIG. Figure 10 is an exploded view of the main parts.
FIG. 11 is an explanatory diagram of the channel selection contact surface pattern of FIG. 10. 21... Tuning voltage preset contact 11ir, 22...
・Tuning voltage common contact surface, 23...defeat extraction contact surface, 29...VHF channel switching axis, 31...
・Board, 33.34...VHF band switching contact surface,
35...UHF band switching contact surface, 38...10B
Application contact surface, 39... Tuning voltage switching contact, 40...
・Contact for band and defeat switching. Representative Patent Attorney Michihito Hiraki-9= ■Figure 1 Figure 3 Figure 4 Figure 5
Claims (2)
設定するための同調電圧プリセット接点面と、前記同調
電圧を取９出すための同調電圧コモン接点面と、電源電
圧印加接点面と、ＶＨＦ−ＵＨｌｉ”バンド切替用接点
面と、前記同調電圧プリセット接点面および同調電圧コ
モ／接点面を接続して所望の同調電圧を取り出すための
同調電圧切替用接点と、前記電源電圧印加接点面および
Ｖ）ＩＰ −ＵＨＦバンド切替用接点面を接続して所望
のバンドを選局するためのバンド切替用接点と、前記同
調電圧切替用接点およびバンド切替用接点を駆動するた
めのチャンネル軸とを有する選局装置において、前記同
調電圧プリセット接点面、同調電圧コモン接点面、電源
電圧印加接点面およびＶＨＦ −ＵＨＦバンド切替用接
点面が前記基板の同一平面上で、かつ互いに同心円状に
配置されたことを特徴とする選局装置。(1) A board, a tuning voltage preset contact surface for presetting the tuning voltage for each channel of F, a tuning voltage common contact surface for taking out the tuning voltage, and a power supply voltage application contact surface. , VHF-UHli" band switching contact surface, a tuning voltage switching contact for connecting the tuning voltage preset contact surface and tuning voltage common/contact surface to take out a desired tuning voltage, and the power supply voltage application contact surface. and V) a band switching contact for connecting the IP-UHF band switching contact surface to select a desired band, and a channel axis for driving the tuning voltage switching contact and the band switching contact. In the tuning device, the tuning voltage preset contact surface, the tuning voltage common contact surface, the power supply voltage application contact surface, and the VHF-UHF band switching contact surface are arranged on the same plane of the substrate and concentrically with each other. A channel selection device characterized by:
で、これと同心円状にディフィート取出接点面が配置さ
れ、かつ、前記電源電圧印加接点面および前記ディフィ
ート取出接点面を接続してディフィート処理を行なうた
めのディフィート切替用接点が設けられたことを特徴と
する特許 範囲第１項記載の選局装置。(2) A defeat extraction contact surface is arranged on the same substrate plane as the tuning voltage preset contact surface and concentrically therewith, and the power supply voltage application contact surface and the defeat extraction contact surface are connected to each other and 1. A channel selection device according to item 1 of the patent scope, characterized in that a defeat switching contact for performing a defeat process is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10702481A JPS589420A (en) | 1981-07-10 | 1981-07-10 | Channel selecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10702481A JPS589420A (en) | 1981-07-10 | 1981-07-10 | Channel selecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS589420A true JPS589420A (en) | 1983-01-19 |
Family
ID=14448576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10702481A Pending JPS589420A (en) | 1981-07-10 | 1981-07-10 | Channel selecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS589420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62108269A (en) * | 1985-11-06 | 1987-05-19 | Ricoh Co Ltd | Recorder |
-
1981
- 1981-07-10 JP JP10702481A patent/JPS589420A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62108269A (en) * | 1985-11-06 | 1987-05-19 | Ricoh Co Ltd | Recorder |
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