JPS5850818A - Dial driving device - Google Patents
Dial driving deviceInfo
- Publication number
- JPS5850818A JPS5850818A JP14870081A JP14870081A JPS5850818A JP S5850818 A JPS5850818 A JP S5850818A JP 14870081 A JP14870081 A JP 14870081A JP 14870081 A JP14870081 A JP 14870081A JP S5850818 A JPS5850818 A JP S5850818A
- Authority
- JP
- Japan
- Prior art keywords
- dial
- rotation
- thread
- gear
- tension
- 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
- H03J1/10—Rope drive; Chain drive
Landscapes
- Details Of Measuring And Other Instruments (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ラジオ受信機等のダイヤル駆動装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dial driving device for a radio receiver or the like.
従来この種のダイヤル駆動装置としては、第１図に示す
ように、バリコン（図示省略）に軸着したバリコンドラ
ム１にコイルバネ２を介してダイヤル糸３を固定し、こ
のダイヤル糸３をバリコンドラムｌ外周１、駆動軸４お
よび目盛板５の両端に配置された張架プーリ６．６間を
張架周回させた構造のものが知られている。Conventionally, as shown in FIG. 1, in this type of dial drive device, a dial thread 3 is fixed via a coil spring 2 to a variable capacitor drum 1 which is pivoted to a variable capacitor (not shown), and this dial thread 3 is connected to a variable capacitor drum 1. A structure is known in which the tension pulleys 6 and 6 disposed at both ends of the outer periphery 1, the drive shaft 4, and the scale plate 5 are rotated in a tensioned manner.
なお７は目盛板５両端のプーリ６．６間に張架しｔダイ
ヤ鳶糸３に取付けたダイヤル指針である。Note that 7 is a dial pointer suspended between pulleys 6 and 6 at both ends of the scale plate 5 and attached to the T diamond thread 3.
このダイヤル駆動装置は、駆動軸４の回動によりダイヤ
ル糸３を周回移動させ、このダイヤル糸３の移動によっ
てバリコンドラムを介してバリコンを回転させるととも
に目盛板５上のダイヤル指針７を移動させ、選局と選局
指示を行なうものである。This dial drive device rotates a dial thread 3 by rotation of a drive shaft 4, rotates a variable capacitor via a variable capacitor drum and moves a dial pointer 7 on a scale plate 5 by the movement of the dial thread 3, This is used to select channels and give instructions.
しかして１選局に用９ｈるバリコンを回転させるに’Ｈ
するトルクは、第２図ムに示すように回転角に応じて１
例えｉｆ ５０ ｇｒ−＠ｎから４００ ｇｒ−ｅｎ程
度まで変化する。However, it takes 9 hours to rotate the variable capacitor for one station selection.
As shown in Fig. 2, the torque to
For example, it varies from 50 gr-@n to about 400 gr-en.
したがうてダイヤル駆動装置のダイヤル糸３には、駆動
軸４やブー９６．６におけるダイヤル糸３のスリップを
防止するために、予めバリコンの回転ＫＩＦする最大回
転トルク（４００ｇｒ−ｅｍ ）に更にスリップ防止の
余裕トルク（！＄００ ｇｒｅｅｎ程度）を加えた回転
トルク（約７０Ｏｇｒ−ａｍ ） （同図Ｂ）を得るた
めの張力（ｓｏｏ ｇ 程度）が加えられてＶ、る。Therefore, in order to prevent the dial thread 3 of the dial drive device from slipping on the drive shaft 4 or the boot 96.6, the dial thread 3 of the dial drive device is preliminarily set to the maximum rotational torque (400 gr-em) of the rotation KIF of the variable condenser to prevent slipping. A tension (about sooo g) is applied to obtain a rotational torque (about 70 Og-am) (about 70 Og-am) (see figure B), which includes an extra torque (about !$00 green).
この張力は主にバリコンドラムＩＫ取付けたコイルバネ
２の張力を用ｉて与えられて％７ａた。This tension was mainly given using the tension of the coil spring 2 attached to the variable converter drum IK, and was %7a.
このためダイヤル糸３には、常に５００９＠度の張力が
加えられることとなり、ダイヤル糸３が延びてダイヤル
糸のおどり、断線、スリップを生ずる欠点があり、ｔた
ダイヤル指針７の選局指示も不正確となる難点もあった
。For this reason, a tension of 5009 degrees is always applied to the dial thread 3, which has the disadvantage that the dial thread 3 stretches and causes the dial thread to dance, break, or slip. There was also the problem of inaccuracy.
％に、小型のラジオ受信機や小型シジオ付テープレコー
ダ虻おいては直径０．５−程度のダイヤル糸か使用され
、一般の卓上型ラジオ受信機等に用％１ｈられる直径０
．５閣 程度のダイヤル糸より更に細ｖまため、上述の
如きダイヤル糸の延びが大きな障害となってＶ為た。A dial thread with a diameter of about 0.5 mm is used in small radio receivers and tape recorders with small radio receivers, and a dial thread with a diameter of about 0.5 mm is used in general desk-top radio receivers, etc.
．． It was even thinner than the dial thread of the 5th grade, and the elongation of the dial thread as described above was a major obstacle.
本発明は以上の欠点を解消するため和なされたものであ
り、バリコンの回動に必要な回転トルクに応じた張力を
ダイヤル糸に加え、ダイヤル糸の延びを防止してダイヤ
ル糸の断線やスリ、ブ等ヲ改良したダイヤル駆動装置の
提供を目的とする。The present invention has been devised to eliminate the above-mentioned drawbacks, and it applies tension to the dial thread according to the rotational torque necessary for rotating the variable capacitor, thereby preventing the dial thread from elongating and preventing breakage and slippage of the dial thread. The purpose of the present invention is to provide a dial drive device with improved functions such as .
この目的を達成するために本発明は、バリコンに軸着し
たバリコンドラムに周回サセたダイヤル糸を、張架ブー
りとダイヤル駆動軸間にループ状に張架させ」ダイヤル
糸にダイヤル指針を取付けて成るダイヤル駆動装置にお
Ｉ／１て、前記ダイヤル糸に圧装させたテンシ曹ンロー
ラと、前記駆動軸に連動し前記バリコンの回転トルクの
増減に対応して前記テンシｌンローラの押圧力を増減さ
せる押圧力調整機構とを具備したことを特徴とするもの
である・
以下本発明の実施例を詳細に説明する。In order to achieve this object, the present invention has developed a system in which a dial thread, which is looped around a variable condenser drum that is pivoted on a variable condenser, is stretched in a loop between a tensioning bobbin and a dial drive shaft, and a dial pointer is attached to the dial thread. The dial drive device includes a tension roller press-fitted to the dial thread, and a tension roller that is linked to the drive shaft and adjusts the pressing force of the tension roller in response to an increase or decrease in the rotational torque of the variable capacitor. The present invention is characterized in that it is equipped with a pressing force adjustment mechanism that increases or decreases the pressure.Examples of the present invention will be described in detail below.
なお第１図と同一部分には同一符号を付す。Note that the same parts as in FIG. 1 are given the same reference numerals.
第ｉ＃！Ｊは零兇嘴の一実施例を示す部分斜視図である
。i #! J is a partial perspective view showing one embodiment of the zero beak.
同図Ｋ・お−でバリコンドラム１には図示を省略したバ
リコンの回動軸が軸着され、ドラム側面凹１１８には一
端をこのバリコンドラムＩＫ引掛は他端にダイヤル糸３
を結んだ引張りコイルバネ２が収められてＶ）る。A rotary shaft of a variable capacitor (not shown) is attached to the variable capacitor drum 1 in K and O in the same figure, and one end of the variable capacitor drum IK hook is attached to the dial thread 3 at the other end.
A tension coil spring 2 tied together is housed in the V).
ダイヤル糸３は、バリコンドラム１の外ｊｆｆｌ溝に１
〜２回巻回され、駆動軸４、目盛ｌｌ１Ｌ５を挾んで軸
支された張架プーリ６．６（一方図示省略）間をループ
状に周回されてＶ〒る。The dial thread 3 is inserted into the outer jffl groove of the variable converter drum 1.
It is wound twice and is wound in a loop between the drive shaft 4 and a tension pulley 6.6 (one not shown) which is pivotally supported by sandwiching the scale 11L5.
目盛板５０両端部に配置された前記プーリ６関に張架さ
れたダイヤル糸３には、ダイヤル指針７をＭする移動子
９が固定されている。A mover 9 for moving the dial pointer 7 is fixed to the dial thread 3 stretched between the pulleys 6 arranged at both ends of the scale plate 50.
駆動軸４虻は、ダイヤル糸３が２〜Ｓ＠巻回されており
、駆動軸４０回動力によりダイヤル糸３０周回移動を可
能にして％１ｈる。The dial thread 3 is wound 2 to S@ around the drive shaft 4, and the dial thread 3 can be moved 30 times by the power of the drive shaft 40 times for %1 hour.
また駆動軸４にはダイヤル糸３の押圧力を増減する押圧
力調整機構１０が連結されている。Further, a pressing force adjustment mechanism 10 that increases or decreases the pressing force of the dial thread 3 is connected to the drive shaft 4.
この押圧力調整機構１０は、駆動軸４に軸着された歯車
１１ と、この歯車１１ と噛合可能に軸支された歯車
１２と、この歯車１２の側面にテンシ１ンバー１３を介
して軸承され、ダイヤル糸３に圧接するテンシｌンロー
ラ１４から構成され、駆動軸４の回動により、歯車１１
に噛合う歯車１２０回転軸１２１を支嵐としてテンシ１
ンローツ１３が矢符Ｃ−Ｄ方向（円周方向）の往復動自
在となりでＶ島る。This pressing force adjustment mechanism 10 includes a gear 11 that is pivotally attached to the drive shaft 4, a gear 12 that is pivotally supported so as to mesh with the gear 11, and a gear 12 that is pivotally supported on the side surface of the gear 12 via a tension member 13. , a tension roller 14 that presses against the dial thread 3, and the gear 11 is rotated by rotation of the drive shaft 4.
The gear 120 meshing with the rotating shaft 121 is used as a support for the tension 1.
The joint 13 is able to freely reciprocate in the direction of arrow C-D (circumferential direction) and forms a V island.
なお、バリコンドラムｌ、駆動軸４、目盛板５゜プーリ
６および歯車１２は第５図に示すようにラジオ受信機の
ケース（キャビネット）１５やケース内の補助層板１６
Ｋ支持され、移動子９は目盛板５や、案内棒（図示省
略）岬に支持される。１７′はツマミである。The variable converter drum l, drive shaft 4, scale plate 5° pulley 6, and gear 12 are installed in the case (cabinet) 15 of the radio receiver or the auxiliary layer plate 16 inside the case, as shown in FIG.
K is supported, and the mover 9 is supported by the scale plate 5 and the guide rod (not shown) cape. 17' is a knob.
次に本発明のダイヤル装置の動作を説明する。Next, the operation of the dial device of the present invention will be explained.
本ダイヤル駆動装置Ｋか―で、駆動軸４を回動すること
によりダイヤル糸３を周回移動させ、バリコンドラム１
を介してバリコンな回動させるとと−に指針７を移動さ
せる動作は、第１図の従来例と同様であり１本ダイヤル
駆動装置は、押圧力調整機構ｌＯを特徴とする。By rotating the drive shaft 4 with this dial drive device K, the dial thread 3 is moved around, and the variable condenser drum 1 is rotated.
The operation of moving the pointer 7 in the variable-contact direction through the variable contactor is similar to the conventional example shown in FIG. 1, and the one-dial drive device is characterized by a pressing force adjustment mechanism IO.
つまり駆動軸４を回動すると、歯車１１と噛合可能にケ
ース等に軸支された歯車１２が回動する。That is, when the drive shaft 4 is rotated, the gear 12, which is pivotally supported by a case or the like so as to be able to mesh with the gear 11, rotates.
歯車１２は回動軸１２１が固定されてｖするので。Since the rotation shaft 121 of the gear 12 is fixed, it rotates.
歯車１２の回動によりテンシ嘗ンパー１３ 先端のテン
シ欝ンローラ１４が回動軸１２’を中心として矢符Ｃ−
Ｄ方向に円周運動する。Due to the rotation of the gear 12, the tension roller 14 at the tip of the tension roller 13 rotates around the rotation shaft 12' at the arrow mark C-.
Circumferential movement in the D direction.
したがつて駆動軸４の回動により、駆動軸４とプーリ６
間に直線的に張架されたダイヤル糸３ヘテンシ、ンロー
ラ１４で第３図中破線の如くに張力な加えたり、またも
どすことが可能となる。Therefore, due to the rotation of the drive shaft 4, the drive shaft 4 and the pulley 6
The dial thread 3 is tensioned linearly between the tension rollers 14, and it is possible to apply and release tension as shown by the broken line in FIG.
そこで、バリコンの回動のため最大回転トルク（４００
ｇｒ−ａｍ ）が必要な場合にテンシ箇ンローラ１４が
ダイヤル糸３に最も強い張力を与えるような位置構成と
しておけば、駆動軸４０回動により、バリコンの回転ト
ルクの増減に対応した抑圧力をダイヤル糸に加える仁と
が可能となる。Therefore, the maximum rotational torque (400
gr-am), if the tension roller 14 is positioned so as to give the strongest tension to the dial thread 3, the rotation of the drive shaft 40 will produce a suppressing force that corresponds to the increase or decrease in the rotational torque of the variable capacitor. It becomes possible to add thread to the dial thread.
なお、ダイヤル糸３に与える張力は、バリコンの最小回
転トルク（５Ｑ ｇｒ−ａｍ ）をバリコンドラム１の
コイルバネ２の張力により、ダイヤル糸３のスリップ防
止のための余裕トルクおよびバリコンの回転に伴なＶｈ
増減する回転トルク分を押圧力調整機構ｌＯに分担させ
るとよ％ｇ。The tension applied to the dial thread 3 is determined by adding the minimum rotational torque (5Q gr-am) of the variable capacitor to the tension of the coil spring 2 of the variable capacitor drum 1, the extra torque for preventing the dial thread 3 from slipping, and the rotation of the variable capacitor. Vh
If the increasing or decreasing rotational torque is shared by the pressing force adjustment mechanism IO, then %g.
第４図は、第′５図の装置におけるバリコンの回転トル
クＡの変化と、ダイ駅ル糸３の有する回転トルクＥの変
化を示す特性図°である。FIG. 4 is a characteristic diagram showing changes in the rotational torque A of the variable capacitor and changes in the rotational torque E of the die coil yarn 3 in the apparatus shown in FIG. '5.
また上述の押圧力調整機構１Ｇは、歯車１ｈ１２ンロー
ラ１４を円周動させてダイヤル糸の張力を連続的に増減
させる機構を示したが１本発明におＶ＆ではこの例に限
らず、例えば駆動軸４に軸着したビニオン’ｈ、ｒンシ
冒ンローラ１４を軸支ｔ、−／？ラックとの組合せ機構
による進退動によっても実現可能である。Further, the above-mentioned pressing force adjustment mechanism 1G shows a mechanism in which the gear 1h12 and the roller 14 are moved circumferentially to continuously increase and decrease the tension of the dial thread. Binion 'h', r, which is pivotally attached to the shaft 4, supports the opening roller 14, t, -/? This can also be realized by moving forward and backward using a mechanism combined with a rack.
要は、ダイヤル糸３に圧接させるテンシロンローラ１４
Ｖ、駆動軸４に連動するとともにバリコンの１転トル
クの増減に対応して押圧力を増減させる機構であればよ
い。In short, the tensilon roller 14 that is brought into pressure contact with the dial thread 3
V, any mechanism may be used as long as it is linked to the drive shaft 4 and increases or decreases the pressing force in response to an increase or decrease in the one-turn torque of the variable capacitor.
以上説明したように本発明は、ダイヤル駆動装置にお−
では、ダイヤル糸に１接したテンシロンローラと、駆動
軸に連動するとともにバリコンの回転トルクの増減に応
じてテンシロンローラの押圧力を増・滅させる押圧力調
整機構とを具備したことにより、常に大きな張力がダイ
ヤル糸に加わることがなくなりてダイヤル糸の延びが防
止されるため、ダイヤル糸のおどり、断線およびスリッ
プが防止され１．ダイヤル指針の目盛指示も正確となる
。As explained above, the present invention provides a dial driving device.
The system is equipped with a Tensilon roller that is in direct contact with the dial thread, and a pressing force adjustment mechanism that is linked to the drive shaft and increases or decreases the pressing force of the Tensilon roller in accordance with increases and decreases in the rotating torque of the variable condenser. Since no tension is applied to the dial thread and the dial thread is prevented from elongating, the dial thread is prevented from dancing, breaking and slipping.1. The scale indication of the dial pointer also becomes accurate.
第１図は従来のダイヤル駆動装置の概Ｗｔ−示す図、第
２図は第１図のダイヤル駆動装置の回転トルク特性図、
第Ｓ図は本発明のダイヤル駆動装置の一実施鴫を示す部
分斜視図、第４図は第５図のダイヤル駆動装置の回転ト
ルク特性図、第５図は第５図のダイヤル駆動装置の取付
構造を示す側面図である。
１・・・バリコンドラム ３・・・ダイヤル糸４・・
・駆動軸 ５・・・目盛板６・・・張架プー
リ ７・・・指 針１０ ・・・押圧力調整機構
１１１１２・・・歯 車１４ ・・・テンシ嘗ンロ
ーラ
（７７ｇ４）代理人弁理士 須ｉ１Ｊ佐どｉ第１図
第２図
パリコンロ転１ｉ！５（’ ）
第５図Fig. 1 is a diagram showing the general Wt of a conventional dial drive device, Fig. 2 is a rotational torque characteristic diagram of the dial drive device in Fig. 1,
Fig. S is a partial perspective view showing an embodiment of the dial driving device of the present invention, Fig. 4 is a rotational torque characteristic diagram of the dial driving device of Fig. 5, and Fig. 5 is an installation of the dial driving device of Fig. 5. FIG. 3 is a side view showing the structure. 1...Varicon drum 3...Dial thread 4...
・Drive shaft 5... Scale plate 6... Tension pulley 7... Pointer 10... Pressing force adjustment mechanism 11112... Gear 14... Tensile roller (77g4) Representative patent attorney Sui1JSadoiFigure 1Figure 2Paris stove rotation 1i! 5(') Figure 5
Claims (1)
ル糸を、張架プーリと駆動軸間にループ・状に張架させ
、ダイヤル糸にダイヤル指針を取付けて成る°ダイヤル
駆動装置において、前記ダイヤル糸に圧接させたテンシ
鵞ンローラと、前記駆動軸に連動し前記バリコンの回転
トルクの増減に対応して前記テンションローラの押圧力
を増減させる押圧力調整機構とを具備したことを特徴と
するダイヤル駆動装置。In a dial drive device, a dial thread, which is wound around a variable condenser drum that is pivoted on a variable condenser, is stretched in a loop between a tension pulley and a drive shaft, and a dial pointer is attached to the dial thread. A dial drive device comprising: a tension roller brought into pressure contact; and a pressing force adjustment mechanism that is interlocked with the drive shaft and increases or decreases the pressing force of the tension roller in response to an increase or decrease in the rotational torque of the variable capacitor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14870081A JPS5850818A (en) | 1981-09-22 | 1981-09-22 | Dial driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14870081A JPS5850818A (en) | 1981-09-22 | 1981-09-22 | Dial driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5850818A true JPS5850818A (en) | 1983-03-25 |
Family
ID=15458637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14870081A Pending JPS5850818A (en) | 1981-09-22 | 1981-09-22 | Dial driving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850818A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232675A (en) * | 2007-03-16 | 2008-10-02 | Yazaki Corp | Meter device |
| DE102011001051B4 (en) * | 2010-03-12 | 2019-06-27 | Visteon Global Technologies, Inc. | Pointer movement architecture for status display in vehicle |
-
1981
- 1981-09-22 JP JP14870081A patent/JPS5850818A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232675A (en) * | 2007-03-16 | 2008-10-02 | Yazaki Corp | Meter device |
| US7703410B2 (en) * | 2007-03-16 | 2010-04-27 | Yazaki Corporation | Vehicle gauge having a pointer configured to travel about a gauge face |
| DE102008013561B4 (en) * | 2007-03-16 | 2011-06-22 | Yazaki Corp. | gauge |
| DE102011001051B4 (en) * | 2010-03-12 | 2019-06-27 | Visteon Global Technologies, Inc. | Pointer movement architecture for status display in vehicle |
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