JP3936832B2 - Rotating electrical parts - Google Patents

Rotating electrical parts Download PDF

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Publication number
JP3936832B2
JP3936832B2 JP2000203080A JP2000203080A JP3936832B2 JP 3936832 B2 JP3936832 B2 JP 3936832B2 JP 2000203080 A JP2000203080 A JP 2000203080A JP 2000203080 A JP2000203080 A JP 2000203080A JP 3936832 B2 JP3936832 B2 JP 3936832B2
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Japan
Prior art keywords
shaft
case
operation shaft
frame body
plate
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JP2000203080A
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Japanese (ja)
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JP2002015641A (en
Inventor
修 芳賀
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、回転型電気部品の構造に係り、特に操作軸の先端に別体の操作つまみを取り付けて電子機器などの操作パネルに使用される回転型電気部品の構造に関する。
【0002】
【従来の技術】
家庭用及び車載用の各種電子機器などの操作パネルには、種々の回転型電気部品であるスイッチやボリューム、エンコーダー等が使用されている。この従来の回転型電気部品の構成においては、操作軸を回転させることによりケース内に収納された回転板を回転させ、回転板及びケース内に配設された接点部を接離させて各種の信号の切り換えを行うものが一般に知られている。
【0003】
この従来の回転型電気部品の場合、合成樹脂などの成形材あるいは金属などのダイキャストで箱形に形成されたケースと、このケースの上面側に突出された操作部を有し、このケースに回転可能に取り付けられた操作軸と、この操作軸に係合され、前記ケースの収納部に収納される合成樹脂などから円盤状に形成された回転板と、この回転板及び前記ケース内に配設された導電性の金属材からなる導体板及び摺動片と、前記ケースの収納部を覆う矩形状の金属材などからなる枠体とを備えている。
【0004】
前記操作軸の操作部に取り付けられた操作つまみが回転されると、操作軸が回転し、この操作軸に係合されている前記回転板も回転されるものとなる。そして、前記回転板に配設された前記導体板が、前記ケース内に配設された摺動片と接離することで信号の切り換えが行われるものとなる。
【0005】
尚、回転操作時に操作感触(クリック感)が必要な場合には、前記回転板あるいはケースのどちらかにクリック用のカム山を形成し、このカム山に対向させてクリック用の板ばねを配置した構成が知られている。
【0006】
【発明が解決しようとする課題】
しかしながら、上述した従来の回転型電気部品の構成においては、操作軸の操作部の先端に、別体からなる操作つまみを取り付けて使用する場合が多く、この場合には、回転型電気部品を取り付ける電子機器のハウジングや回路基板との取り付け寸法のばらつきや、操作軸の長さ寸法のばらつきなどにより、操作つまみの下面と操作パネル表面との間の隙間寸法のばらつきが発生してしまい、このばらつきが大きいと外観上あまり好ましいものではなかった。
【0007】
また、回転型電気部品自体の構成部品同士の寸法のばらつきなどにより、操作軸にがたつきが発生してしまい、この操作軸のがたつきにより操作つまみを操作する際の操作感触が悪くなるという問題があった。
【0008】
したがって、本発明では上述した問題点を解決し、回転型電気部品の構成で、操作軸の操作部の先端に別体からなる操作つまみを取り付ける場合においても、操作つまみの下面と操作パネル表面との間の隙間寸法のばらつきの発生を防止するとともに、操作軸のがたつきを防止し、操作つまみの操作感触の向上が図れる回転型電気部品を提供することを目的とする。
【0009】
【課題を解決するための手段】
上記課題を解決するために本発明では第1の手段として、収納部を有するケースと、前記収納部に回転可能に収納された回転板と、この回転板に係合され前記ケースに回転可能に取り付けられた操作軸と、前記操作軸の一端部が挿通される挿通孔を有し、前記収納部の開口を覆う枠体と、前記枠体の外方に取り付けられ、前記挿通孔から突出される前記操作軸の一端部を押圧し、常時、前記操作軸の操作部を前記ケースから突出する方向へ付勢するばね部材とを備え、前記ばね部材は、前記枠体に設けられた挿通孔を塞ぐとともに、前記枠体に重ね合わされて固着され、前記枠体とともに前記ケースの下面側に一体的に取り付けられていることを特徴とする。
【0011】
また、第の手段として、前記ばね部材が、中央が湾曲されたばね性を有する平板状の板ばねからなることを特徴とする。
【0012】
また、第の手段として、前記回転板には、前記操作軸の軸挿入部が形成され、前記操作軸は、前記ケース及び前記回転板に軸方向に可動となるように係合されていることを特徴とする。
【0013】
【発明の実施の形態】
以下、本発明の一実施例を図1乃至図3に示す。図1は回転型電気部品を示す断面図、図2は板ばねを示す平面図、図3は同じく正面図である。
【0014】
図において、ケース1は、合成樹脂などの絶縁材、あるいは金属材のダイキャストなどにより下面が開口された箱状に形成されている。このケース1の上面側には、後述する操作軸2が挿通される軸孔1aを有し、操作部2aの先端が外方へ突出される円筒状の軸受け部1bが一体的に突出されて形成されている。また、前記軸受け部1bに連設して下面側の開口内に後述する回転板3等を収納する収納部1cが形成されたものとなっている。
【0015】
操作軸2は、合成樹脂などの絶縁材、あるいは金属材のダイキャストなどで略円柱状に形成されており、この操作軸2の先端側は、前記軸受け部1bの軸孔1aから突出されて図示しない操作つまみが取り付けられる操作部2aとなっている。また、前記操作軸2の中間部には、前記操作部2aより太径でかつ小判状からなる回転駆動部2bが設けられ、この回転駆動部2bが後述する回転板3と係合されることで、前記操作軸2の回転に伴って回転板3が回転動作されるものとなっている。
【0016】
また、前記操作部2aの他端側には、前記回転駆動部2bに連設して操作部2aより小径で回転板3の軸挿入部3bに挿入される第1の支軸部2cが設けられ、この第1の支軸部2cの先端には、更に小径で後述する枠体9の挿通孔9aに挿通される第2の支軸部2dが設けられている。
【0017】
回転板3は、合成樹脂などの絶縁材で略円盤状に形成されており、この回転板3の中央には、前記操作軸2の回転駆動部2bが挿入され係合される小判状の凹溝からなる軸係止部3aが形成されている。また、この軸係止部3aに連続して貫通孔からなる軸挿入部3bが形成され、この軸挿入部3bに前記操作軸2の第1の支軸部2cが挿入されるものとなっている。
【0018】
この場合、前記回転板3の軸挿入部3bに挿入された前記操作軸2は、前記ケース1及び前記回転板3に対して、軸方向に移動可能となるように係合されているものとなっている。このため、前記回転板3は後述する導体板5と前記ケース1に配設された接触片6との接触状態が、前記操作軸2の軸方向への移動に関係無く、常に一定に保たれていることから、前記操作軸2の正規の回転方向への回転動作に伴って安定した接点の切り換えが行えるものとなっている。
【0019】
また、前記回転板3の上面側には、複数の凹凸部からなる環状のカム山部3cが設けられており、また、前記ケース1の前記収納部1cの天井面側にはこのカム山部3cに対向してばね性を有するクリック板4が設けられている。前記カム山部3cとクリック板4を設けることにより、前記操作部2aの回転動作時に良好な操作感触(クリック感)が得られるものとなる。
【0020】
また、前記回転板3の下面側には、導電性の金属材で回路パターン(図示せず)が形成された導体板5が取り付けられており、また、前記ケース1の前記収納部1cの開口側にはこの導体板5に対向した位置に、回路パターンと接離される導電性の金属材からなる摺動片6が配設された絶縁材からなるウエハー7が配設されたものとなっている。このウエハー7には、前記摺動片6から導出される接続端子8が設けられ。この接続端子8が電子機器の回路パターン等に接続されて信号が伝送されるものとなる。
【0021】
枠体9は、鋼板などの金属板を打ち抜き折り曲げ加工することにより略矩形状に形成されている。この枠体9の中央には、挿通孔9aが設けられ、この挿通孔9aに前記操作軸2の他端側に設けられた第2の支軸部2dが挿通され突出するように配設されている。また、前記枠体9の四角部には、折曲片9bが設けられており、この折曲片9bを屈曲することにより、枠体9の下側に後述する板ばね10を重ね合わせて取り付けるものとなっている。
【0022】
前記枠体9は、前記ケース1の開口された前記収納部1cを覆うように取り付けられるものとなっており、前記ケース1の収納部1cからの前記操作軸2、回転板3、クリック板4、ウエハー7などの飛び出しを防止するとともに、後述する板ばね10とともに塵、埃の侵入を防止することが可能となっている。
【0023】
ばね部材である板ばね10は、ばね用リン青銅などのばね性を有する平板状の金属材で略矩形状に形成され、この板ばね10の中央が湾曲されて湾曲部10aが形成されている。この板ばね10は、前記枠体9の下面側に、前記枠体9に設けられた前記挿通孔9aを塞ぐとともに、前記枠体9に重ね合わされて固着されており、前記枠体9とともに前記ケース1の開口した前記収納部1cの下面側に一体的に取り付けられるものとなっている。
また、前記湾曲部10aが、前記挿通孔9aから突出される前記操作軸2の第2の支軸部2dの先端を押圧し、常時、前記操作軸2の操作部2aを前記ケース1の軸受け部1bから突出する方向へ付勢している(本実施例の場合には約1〜2kgfに設定)。
【0024】
前記板ばね10の中央を湾曲することにより、前記板ばね10の四角部が、前記枠体9の四角部に前記折曲片9bを屈曲して重ね合わせて取り付けられた時に、前記板ばね10の湾曲部10aは前記枠体9の下面部により押圧され、前記枠体9の挿通孔9aから突出された前記操作軸2の第2の支軸部2dの先端に確実に付勢力が付与されることとなり、前記操作軸2のがたつきの発生を防止することができる。
また、回転型電気部品自体の構成部品同士の寸法のばらつきなどにより、前記操作軸2にがたつきが発生してしまう場合においても、前記板ばね10の付勢力によってこの操作軸のがたつきを防止できることから、操作つまみを操作する際の操作感触を良好にすることができる。
【0025】
次に、上記実施例で示した回転型電気部品の先端に操作つまみを取り付けて使用する場合について説明する。
この場合、回転型電気部品は、電子機器などのハウジングや回路基板などに取り付けられており、操作パネルに設けられた挿通孔などから前記操作軸2の操作部2aが突出して配設されている。また、初期の状態においては、前記操作軸2は前記枠体9の下面側に取り付けられた前記板ばね10の付勢力により、常時、前記ケース1の軸受け部1bから突出する方向へ付勢されており、前記操作部2aも操作パネルから突出する方向へ付勢されたものとなっている。
【0026】
この状態で、前記操作軸2の操作部2aの先端に図示しない操作つまみを取り付ける場合、前記操作軸2は操作つまみの圧入力(本実施例では約3〜6kgfに設定)に伴って収納部1c側へ押されることになり、前記第1の支軸部2cが前記回転板3の軸挿入部3b内を図1に示す下方向へ一定間隙だけ移動し、前記第1の支軸部2cの先端が前記枠体9の内底面にぶつかるまで移動する(本実施例の場合には0.5mmに設定してある)。
【0027】
この時、前記枠体9のストッパー強度は、約10kgfに設定されていることから、前記操作軸2は0.5mm移動した段階でその移動が停止され、前記操作つまみのみが前記操作軸2に沿って前記操作パネルの表面に当接するまで移動することになる。そして操作つまみの下面が操作パネルの表面に当接した段階で操作つまみの操作軸2への挿入は停止される。
【0028】
この状態から、前記操作つまみへの押圧力を解除すると、操作つまみは、前記操作軸2を前記ケース1の軸受け部1bから突出する方向へ付勢している前記板ばね10の付勢力によって、前記操作部2aとともに操作パネルから突出する方向へ付勢されて0.5mm移動して初期の状態へと復帰するものとなる。
【0029】
上記した本発明の実施例では、回転型電子部品に操作つまみを取り付けた状態においては、操作つまみの下面と操作パネル表面との間には、常に、前記板ばね10の付勢力によって0.5mmの隙間が確保されることになり、回転型電気部品を取り付ける電子機器のハウジングや回路基板との取り付け寸法のばらつきや、前記操作軸2の長さ寸法のばらつきなどにより、操作つまみの下面と操作パネル表面との間の隙間寸法のばらつきが発生することを防止でき、外観上良好な操作パネルへの操作つまみの取付状態が得られるものとなる。
【0030】
【発明の効果】
以上説明したように、本発明の回転型電気部品は、収納部を有するケースと、収納部に回転可能に収納された回転板と、この回転板に係合されケースに回転可能に取り付けられた操作軸と、操作軸の一端部が挿通される挿通孔を有し、収納部の開口を覆う枠体とを備え、枠体の外方には、挿通孔から突出される操作軸の一端部を押圧し、常時、操作軸の操作部をケースから突出する方向へ付勢するばね部材が取り付けられていることから、回転型電気部品自体の構成部品同士の寸法のばらつきなどにより、操作軸にがたつきが発生してしまう場合においても、板ばねの付勢力によってこの操作軸のがたつきを防止できることから、操作つまみを操作する際の操作感触を良好にすることができる。
また、操作軸の長さ寸法のばらつきなどにより、操作つまみの下面と操作パネル表面との間の隙間寸法のばらつきが発生することを防止できる。
【0031】
また、ばね部材は、枠体に設けられた挿通孔を塞ぐとともに、枠体に重ね合わされて固着され、枠体とともにケースの下面側に一体的に取り付けられていることから、簡単な構成でケースの収納部からの操作軸、回転板などの飛び出しを防止するとともに、塵、埃の侵入を防止できる。
【0032】
また、ばね部材が、中央が湾曲されたばね性を有する平板状の板ばねからなることから、枠体に取り付けた際に板ばねの湾曲部が枠体の下面部により押圧されるため、操作軸の先端に確実に付勢力が付与されることになり、操作軸のがたつきの発生を防止することができる。
【0033】
また、回転板には、操作軸の軸挿入部が形成され、操作軸は、ケース及び回転板に軸方向に可動となるように係合されていることから、回転板の導体板とケースに配設された接触片との接触状態を常に一定に保つことができるため、安定した接点の切り換えが行える。
【図面の簡単な説明】
【図1】本発明の一実施例である回転型電気部品を示す断面図である。
【図2】本発明の板ばねを示す平面図である。
【図3】本発明の同じく板ばねを示す正面図である。
【符号の説明】
1 ケース
1a 軸孔
1b 軸受け部
1c 収納部
2 操作軸
2a 操作部
2b 回転駆動部
2c 第1の支軸部
2d 第2の支軸部
3 回転板
3a 軸係止部
3b 軸挿入部
3c カム山部
4 クリック板
5 導体板
6 摺動片
7 ウエハー
8 接続端子
9 枠体
9a 挿通孔
9b 折曲片
10 板ばね(ばね部材)
10a 湾曲部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a rotary electric component, and more particularly, to a structure of a rotary electric component used for an operation panel of an electronic device or the like by attaching a separate operation knob to the tip of an operation shaft.
[0002]
[Prior art]
Various rotary electric parts such as switches, volumes, encoders, and the like are used for operation panels of various electronic devices for home use and on-vehicle use. In the configuration of this conventional rotating electrical component, the rotating plate housed in the case is rotated by rotating the operating shaft, and the rotating plate and the contact portion disposed in the case are brought into contact with and separated from each other. A device for switching signals is generally known.
[0003]
In the case of this conventional rotating electrical component, it has a case formed in a box shape by a die-casting material such as a molding material such as a synthetic resin or metal, and an operation portion protruding from the upper surface side of this case. An operating shaft that is rotatably mounted, a rotating plate that is engaged with the operating shaft and is formed in a disc shape from a synthetic resin or the like that is stored in the housing portion of the case, and the rotating plate and the case that are disposed in the rotating shaft. And a conductive plate made of a conductive metal material and a sliding piece, and a frame made of a rectangular metal material covering the housing portion of the case.
[0004]
When the operation knob attached to the operation portion of the operation shaft is rotated, the operation shaft is rotated, and the rotating plate engaged with the operation shaft is also rotated. Then, the signal switching is performed when the conductor plate arranged on the rotating plate comes in contact with and separates from the sliding piece arranged in the case.
[0005]
If an operation feeling (click feeling) is required during the rotation operation, a click cam crest is formed on either the rotating plate or the case, and a click leaf spring is arranged opposite to the cam crest. The configuration is known.
[0006]
[Problems to be solved by the invention]
However, in the configuration of the conventional rotary electric component described above, a separate operation knob is often attached to the tip of the operation portion of the operation shaft. In this case, the rotary electric component is attached. Variations in the gap between the lower surface of the operation knob and the operation panel surface occur due to variations in the mounting dimensions of the housing and circuit board of the electronic device and the length of the operation shaft. When it is large, the appearance is not so preferable.
[0007]
In addition, due to the dimensional variation among the components of the rotating electrical component itself, the operation shaft is wobbled, and the operation feeling when operating the operation knob is deteriorated due to the shakiness of the operation shaft. There was a problem.
[0008]
Therefore, the present invention solves the above-described problems, and even when a separate operation knob is attached to the tip of the operation portion of the operation shaft in the configuration of the rotary electric component, the lower surface of the operation knob, the operation panel surface, It is an object of the present invention to provide a rotary electric component that can prevent the variation in the gap size between the two, and can prevent the operation shaft from rattling and improve the operation feel of the operation knob.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the present invention, as a first means, a case having a storage portion, a rotating plate rotatably stored in the storage portion, and a rotation plate engaged with the rotating plate so that the case can rotate. An operation shaft that is attached; an insertion hole through which one end of the operation shaft is inserted; a frame that covers the opening of the storage portion; and an outer portion of the frame that is attached to and protrudes from the insertion hole. A spring member that presses one end portion of the operation shaft and constantly biases the operation portion of the operation shaft in a direction protruding from the case , and the spring member is an insertion hole provided in the frame body. And is attached to the lower surface side of the case together with the frame body .
[0011]
Further, as a second means, the spring member is a flat plate spring having a spring property with a curved center.
[0012]
As a third means, a shaft insertion portion for the operation shaft is formed on the rotating plate, and the operation shaft is engaged with the case and the rotating plate so as to be movable in the axial direction. It is characterized by that.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention is shown in FIGS. 1 is a cross-sectional view showing a rotary electric component, FIG. 2 is a plan view showing a leaf spring, and FIG. 3 is a front view of the same.
[0014]
In the figure, the case 1 is formed in a box shape whose bottom surface is opened by an insulating material such as a synthetic resin or a die-cast metal material. On the upper surface side of the case 1, there is a shaft hole 1a through which an operation shaft 2 to be described later is inserted, and a cylindrical bearing portion 1b from which the tip of the operation portion 2a projects outward is integrally projected. Is formed. In addition, a storage portion 1c that is connected to the bearing portion 1b and stores a rotating plate 3 and the like to be described later is formed in the opening on the lower surface side.
[0015]
The operation shaft 2 is formed in a substantially cylindrical shape by an insulating material such as a synthetic resin or a metal die-casting, and the distal end side of the operation shaft 2 protrudes from the shaft hole 1a of the bearing portion 1b. An operation unit 2a to which an operation knob (not shown) is attached is provided. Further, an intermediate portion of the operation shaft 2 is provided with a rotation drive portion 2b having a diameter larger than that of the operation portion 2a and having an oval shape, and the rotation drive portion 2b is engaged with a rotation plate 3 described later. Thus, the rotating plate 3 is rotated in accordance with the rotation of the operation shaft 2.
[0016]
The other end side of the operation portion 2a is provided with a first support shaft portion 2c that is connected to the rotation drive portion 2b and has a smaller diameter than the operation portion 2a and is inserted into the shaft insertion portion 3b of the rotary plate 3. At the tip of the first support shaft portion 2c, a second support shaft portion 2d having a smaller diameter and inserted through an insertion hole 9a of the frame body 9 described later is provided.
[0017]
The rotary plate 3 is formed in a substantially disc shape with an insulating material such as synthetic resin, and an oblong recess into which the rotary drive portion 2b of the operation shaft 2 is inserted and engaged is formed at the center of the rotary plate 3. A shaft locking portion 3a made of a groove is formed. Further, a shaft insertion portion 3b composed of a through hole is formed continuously with the shaft locking portion 3a, and the first support shaft portion 2c of the operation shaft 2 is inserted into the shaft insertion portion 3b. Yes.
[0018]
In this case, the operation shaft 2 inserted into the shaft insertion portion 3b of the rotating plate 3 is engaged with the case 1 and the rotating plate 3 so as to be movable in the axial direction. It has become. For this reason, the rotating plate 3 is always kept constant in the contact state between the conductive plate 5 described later and the contact piece 6 disposed in the case 1 regardless of the movement of the operation shaft 2 in the axial direction. Therefore, stable contact switching can be performed in accordance with the rotation operation of the operation shaft 2 in the normal rotation direction.
[0019]
An annular cam crest 3c composed of a plurality of concave and convex portions is provided on the upper surface side of the rotating plate 3, and the cam crest is formed on the ceiling surface side of the storage portion 1c of the case 1. A click plate 4 having a spring property is provided opposite to 3c. By providing the cam crest 3c and the click plate 4, a good operation feeling (click feeling) can be obtained during the rotation operation of the operation unit 2a.
[0020]
A conductive plate 5 having a circuit pattern (not shown) formed of a conductive metal material is attached to the lower surface side of the rotating plate 3, and the opening of the housing portion 1 c of the case 1 is attached. On the side, a wafer 7 made of an insulating material in which a sliding piece 6 made of a conductive metal material that is brought into contact with and separated from the circuit pattern is arranged at a position facing the conductor plate 5. Yes. The wafer 7 is provided with connection terminals 8 led out from the sliding piece 6. The connection terminal 8 is connected to a circuit pattern or the like of an electronic device to transmit a signal.
[0021]
The frame body 9 is formed in a substantially rectangular shape by punching and bending a metal plate such as a steel plate. An insertion hole 9a is provided in the center of the frame body 9, and the second support shaft portion 2d provided on the other end side of the operation shaft 2 is inserted into the insertion hole 9a so as to protrude. ing. Further, a bent piece 9b is provided at a square portion of the frame body 9, and a leaf spring 10 described later is attached to the lower side of the frame body 9 by bending the bent piece 9b. It has become a thing.
[0022]
The frame body 9 is attached so as to cover the opened storage portion 1 c of the case 1, and the operation shaft 2, the rotary plate 3, and the click plate 4 from the storage portion 1 c of the case 1. In addition to preventing the wafer 7 and the like from jumping out, it is possible to prevent intrusion of dust and dust together with the leaf spring 10 described later.
[0023]
The leaf spring 10 as a spring member is formed in a substantially rectangular shape with a flat metal material having spring properties such as spring phosphor bronze, and the center of the leaf spring 10 is curved to form a curved portion 10a. . The leaf spring 10 closes the insertion hole 9 a provided in the frame body 9 on the lower surface side of the frame body 9, and is overlapped and fixed to the frame body 9 together with the frame body 9. The case 1 is integrally attached to the lower surface side of the storage portion 1c opened.
Further, the bending portion 10a presses the tip of the second support shaft portion 2d of the operation shaft 2 protruding from the insertion hole 9a, so that the operation portion 2a of the operation shaft 2 is always supported by the bearing of the case 1. It is biased in a direction protruding from the portion 1b (in the case of this embodiment, it is set to about 1 to 2 kgf).
[0024]
By curving the center of the leaf spring 10, the square portion of the leaf spring 10 is attached to the square portion of the frame body 9 by bending and bending the bent piece 9 b. The curved portion 10a is pressed by the lower surface portion of the frame body 9, and a biasing force is reliably applied to the tip of the second support shaft portion 2d of the operation shaft 2 protruding from the insertion hole 9a of the frame body 9. Thus, it is possible to prevent the operation shaft 2 from rattling.
Further, even when the operation shaft 2 is rattled due to dimensional variations between components of the rotary electrical component itself, the operation shaft is rattled by the urging force of the leaf spring 10. Therefore, the operation feeling when operating the operation knob can be improved.
[0025]
Next, a case where an operation knob is attached to the tip of the rotating electrical component shown in the above embodiment will be described.
In this case, the rotary electric component is attached to a housing or a circuit board of an electronic device or the like, and the operation portion 2a of the operation shaft 2 protrudes from an insertion hole or the like provided in the operation panel. . In the initial state, the operation shaft 2 is always urged in a direction protruding from the bearing portion 1 b of the case 1 by the urging force of the leaf spring 10 attached to the lower surface side of the frame body 9. The operation portion 2a is also urged in a direction protruding from the operation panel.
[0026]
In this state, when an operation knob (not shown) is attached to the distal end of the operation portion 2a of the operation shaft 2, the operation shaft 2 is stored in the storage portion in accordance with the pressure input of the operation knob (set to about 3 to 6 kgf in this embodiment). 1c side, the first support shaft portion 2c moves in the shaft insertion portion 3b of the rotating plate 3 downward by a predetermined gap as shown in FIG. 1, and the first support shaft portion 2c. Is moved until it hits the inner bottom surface of the frame body 9 (in this embodiment, it is set to 0.5 mm).
[0027]
At this time, since the stopper strength of the frame body 9 is set to about 10 kgf, the movement of the operation shaft 2 is stopped when it has moved by 0.5 mm, and only the operation knob is attached to the operation shaft 2. It moves to contact | abut to the surface of the said operation panel along. Then, when the lower surface of the operation knob comes into contact with the surface of the operation panel, the insertion of the operation knob into the operation shaft 2 is stopped.
[0028]
When the pressing force to the operation knob is released from this state, the operation knob is urged by the urging force of the leaf spring 10 that urges the operation shaft 2 in a direction protruding from the bearing portion 1b of the case 1. It is urged in the direction protruding from the operation panel together with the operation portion 2a, moves 0.5 mm, and returns to the initial state.
[0029]
In the above-described embodiment of the present invention, in a state where the operation knob is attached to the rotary electronic component, the biasing force of the leaf spring 10 is always 0.5 mm between the lower surface of the operation knob and the operation panel surface. The clearance between the operation knob and the bottom surface of the operation knob can be reduced due to variations in the mounting dimensions of the housing and circuit board of the electronic device to which the rotating electrical component is mounted and the length of the operation shaft 2. It is possible to prevent variation in the size of the gap between the panel surface and to obtain a state in which the operation knob is attached to the operation panel with good appearance.
[0030]
【The invention's effect】
As described above, the rotary electrical component according to the present invention includes a case having a storage portion, a rotary plate that is rotatably stored in the storage portion, and a rotary plate that is engaged with the rotary plate and rotatably attached to the case. An operation shaft and a frame body having an insertion hole through which one end portion of the operation shaft is inserted and covering the opening of the storage portion, and one end portion of the operation shaft protruding from the insertion hole on the outside of the frame body Is attached to the operating shaft due to variations in the dimensions of the components of the rotating electrical component itself. Even when rattling occurs, the operating shaft can be prevented from rattling by the urging force of the leaf spring, so that the operation feeling when operating the operation knob can be improved.
Further, it is possible to prevent a variation in the gap size between the lower surface of the operation knob and the surface of the operation panel due to variations in the length of the operation shaft.
[0031]
In addition, the spring member closes the insertion hole provided in the frame body, is overlaid and fixed to the frame body, and is integrally attached to the lower surface side of the case together with the frame body. In addition to preventing the operation shaft and the rotating plate from protruding from the storage portion, dust and dust can be prevented from entering.
[0032]
In addition, since the spring member is a flat plate spring having a spring property with a curved center, the curved portion of the plate spring is pressed by the lower surface portion of the frame body when the spring member is attached to the frame body. An urging force is surely applied to the tip of the shaft, and it is possible to prevent the operation shaft from rattling.
[0033]
In addition, the rotating plate is formed with a shaft insertion portion of the operating shaft, and the operating shaft is engaged with the case and the rotating plate so as to be movable in the axial direction. Since the contact state with the arranged contact piece can always be kept constant, the contact can be switched stably.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a rotating electrical component according to an embodiment of the present invention.
FIG. 2 is a plan view showing a leaf spring of the present invention.
FIG. 3 is a front view showing the same leaf spring of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case 1a Shaft hole 1b Bearing part 1c Storage part 2 Operation shaft 2a Operation part 2b Rotation drive part 2c 1st spindle part 2d 2nd spindle part 3 Rotating plate 3a Shaft locking part 3b Shaft insertion part 3c Cam mountain Part 4 Click plate 5 Conductor plate 6 Sliding piece 7 Wafer 8 Connection terminal 9 Frame body 9a Insertion hole 9b Bending piece 10 Leaf spring (spring member)
10a Curved part

Claims (3)

収納部を有するケースと、前記収納部に回転可能に収納された回転板と、この回転板に係合され前記ケースに回転可能に取り付けられた操作軸と、前記操作軸の一端部が挿通される挿通孔を有し、前記収納部の開口を覆う枠体と、前記枠体の外方に取り付けられ、前記挿通孔から突出される前記操作軸の一端部を押圧し、常時、前記操作軸の操作部を前記ケースから突出する方向へ付勢するばね部材とを備え、前記ばね部材は、前記枠体に設けられた挿通孔を塞ぐとともに、前記枠体に重ね合わされて固着され、前記枠体とともに前記ケースの下面側に一体的に取り付けられていることを特徴とする回転型電気部品。A case having a storage portion, a rotating plate rotatably accommodated in the housing portion, an operation shaft engaged with the rotation plate and rotatably attached to the case, and one end portion of the operation shaft are inserted. A frame body that covers the opening of the storage portion, and is attached to the outside of the frame body, presses one end portion of the operation shaft that protrudes from the insertion hole, and always operates the operation shaft. A spring member that urges the operating portion in a direction protruding from the case , the spring member closing an insertion hole provided in the frame body, and overlapping and fixing the frame body. A rotating electrical component that is integrally attached to a lower surface side of the case together with a body . 前記ばね部材が、中央が湾曲されたばね性を有する平板状の板ばねからなることを特徴とする請求項1記載の回転型電気部品。It said spring member is rotary electrical component according to claim 1 Symbol mounting center is characterized by comprising a plate-shaped leaf spring having a curved spring properties. 前記回転板には、前記操作軸の軸挿入部が形成され、前記操作軸は、前記ケース及び前記回転板に軸方向に可動となるように係合されていることを特徴とする請求項1、又は2記載の回転型電気部品。2. The shaft insertion portion of the operation shaft is formed on the rotating plate, and the operation shaft is engaged with the case and the rotating plate so as to be movable in the axial direction. Or the rotary electric component according to 2 above.
JP2000203080A 2000-06-30 2000-06-30 Rotating electrical parts Expired - Lifetime JP3936832B2 (en)

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Application Number Priority Date Filing Date Title
JP2000203080A JP3936832B2 (en) 2000-06-30 2000-06-30 Rotating electrical parts

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JP3936832B2 true JP3936832B2 (en) 2007-06-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007201415A (en) 2005-12-28 2007-08-09 Alps Electric Co Ltd Rotary type electrical component
JP4697486B2 (en) 2008-07-23 2011-06-08 株式会社デンソー Automotive control system
WO2018158905A1 (en) * 2017-03-02 2018-09-07 東京コスモス電機株式会社 Rotary operating component

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