JP2005340126A - Small-sized switch spring - Google Patents

Small-sized switch spring Download PDF

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JP2005340126A
JP2005340126A JP2004160920A JP2004160920A JP2005340126A JP 2005340126 A JP2005340126 A JP 2005340126A JP 2004160920 A JP2004160920 A JP 2004160920A JP 2004160920 A JP2004160920 A JP 2004160920A JP 2005340126 A JP2005340126 A JP 2005340126A
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contact portion
switch spring
shape
switch
small
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Yuzo Kashiwagi
勇造 柏木
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Citizen Electronics Co Ltd
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Citizen Electronics Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To make a small-sized switch spring, which is used for small press button switch for electrical equipment, such as cellular phones, audio equipment, cameras, facsimiles etc., smaller than existing one and into a structure which is easier to produce. <P>SOLUTION: The small size switch spring comprises a movable contact part 11, connected to contact parts 12 and jointing parts 13 in a same board at all times. In the connected contact parts connected at all times 12, convex contact parts 15 and 16 with a fixed groove width are formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、テレビ、ビデオの家電や音響機器のリモコン、カメラやファクシミリ、携帯電話など多くの電気機器に使用される押しボタンスイッチ、特に小型のボタンスイッチに関る。   The present invention relates to a push button switch, particularly a small button switch, used in many electrical devices such as televisions, video home appliances, remote controllers for audio equipment, cameras, facsimiles, mobile phones and the like.

電気製品に対する小型化、薄型化の要望は強い。とりわけリモコンなどの可動製品、携帯電話やカメラなどの携帯製品、さらにはコンパクトディスクやミニディスク、ウォークマンなどの音響機器に至るまで色々な要求は強く、これに伴い、これら機器に備わるスイッチにも小型・薄型化は強まるばかりである。   There is a strong demand for smaller and thinner electrical products. In particular, there are strong demands for movable products such as remote controls, portable products such as mobile phones and cameras, and acoustic devices such as compact discs, mini discs, and walkmans.・ Thinning is only getting stronger.

これら電気機器に使用される小型スイッチは、押したときの感触を得られるよう金属バネ方式とラバーバネ方式が採用されている。中でも金属バネ方式はショートストロークでクリック感覚を伴った感触が得られることから、小型化すればするほど金属バネ方式が重用されることが多い。   The small switches used in these electric devices employ a metal spring system and a rubber spring system so that the touch when pressed is obtained. In particular, the metal spring method provides a feel with a click feeling with a short stroke, so the metal spring method is often used more as the size is reduced.

スイッチを小型化するということは当然内蔵する金属バネも小型化しなければならない。しかし、スイッチの特性には感触性を確保しながら、荷重、ストローク、クリック率、接触抵抗に加えて繰り返し利用される使命のある耐久性がある。
一般には、小さくすることでこれらの特性が全て悪い方向に向かい、ストロークの確保が難しく、クリック感触の悪い、耐久性も低いスイッチになる傾向にある。
When the switch is downsized, the built-in metal spring must be downsized. However, the switch has durability with a mission to be used repeatedly in addition to the load, stroke, click rate, and contact resistance while ensuring the feel.
In general, by reducing the size, all of these characteristics tend to be in a bad direction, it is difficult to secure a stroke, the click feeling is poor, and the durability tends to be low.

このような問題解決のために、本出願人は先に特開平11−144559により構造簡単な押しボタンスイッチを提案した。図3はその押しボタンスイッチのスイッチバネを示す。このスイッチバネは、例えば、図4に示すような押しボタンスイッチに組み込まれて使用される。   In order to solve such a problem, the present applicant has previously proposed a push button switch having a simple structure according to Japanese Patent Laid-Open No. 11-144559. FIG. 3 shows a switch spring of the push button switch. For example, the switch spring is used by being incorporated in a push button switch as shown in FIG.

図3の10は本出願人が先に提案したスイッチバネ10の斜視図である。一枚の板でほぼ長方形に作られ、中央が上方向のアーチ状に湾曲した可動接点部11がある。スイッチバネ全体はこの可動接点部11の中心を軸に平面的に左右上下が対象であって、平行な二つのスリット14を挟んで両側には常接接点部12があり、可動接点部11と常接接点部12のそれぞれ両端は連接部13により連接された構造である。   3 of FIG. 3 is a perspective view of the switch spring 10 previously proposed by the present applicant. There is a movable contact portion 11 made of a single plate in a substantially rectangular shape and having a center curved in an upward arch shape. The entire switch spring is intended for the left, right, top and bottom in plan with the center of the movable contact portion 11 as an axis, and there are always contact portions 12 on both sides of the two parallel slits 14. Each of the both ends of the regular contact portion 12 is connected by the connecting portion 13.

常接接点部12には、可動接点部11の湾曲と反対方向に***し、常接接点部12を横断する3つの凸部15、16、17を設けている。同様に、可動接点部11を挟んだ反対側も同じ構造で、常接接点部と三つの凸部を有する。   The normal contact portion 12 is provided with three convex portions 15, 16, and 17 that protrude in a direction opposite to the curve of the movable contact portion 11 and cross the normal contact portion 12. Similarly, the opposite side across the movable contact portion 11 has the same structure, and has a regular contact portion and three convex portions.

図4は、このスイッチバネ10を組み込んだ押しボタンスイッチの一例で、可動接点部の中心を連接部13方向に見た断面図であり、接続オン/オフの対象となる第一端子配線2と第二端子配線3を配線した基板1、スイッチバネ10、ボタン6、このスイッチバネ10をボタン6と共に挟み込み位置規制する枠4から構成される。   FIG. 4 is an example of a pushbutton switch incorporating the switch spring 10, and is a cross-sectional view of the center of the movable contact portion as viewed in the direction of the connecting portion 13. The board 1 includes a second terminal wiring 3, a switch spring 10, a button 6, and a frame 4 that sandwiches the switch spring 10 together with the button 6 and regulates the position.

枠4はスイッチバネ10を平面的に囲う形状をした四辺形で、上部にはボタン6の動きを規制する庇5を備え、基板に固定している。この枠4はスイッチバネ10にある連接部14の水平方向の動きを形状的に規制する。スイッチバネ10は可動接点部11の湾曲状の頂点が押しボタン6の押込み凸部7と当接しており、押しボタン6にバネ力を働かせて外側(図面上側)に押し上げている。一方その反力としてスイッチバネ10は下側の基板1に押し付けられ、常接接点部12の凸部15、16、17が第二端子配線3の第2の端子部で定常的な接触をし、電気的な導通を保つ。枠4内の可動接続部11の中央に対応する位置に、第一端子配線2の第1の端子がある。図示は省略するが、枠4内の端子配線上にある第1の端子と第2の端子部を除いては絶縁処理が施され、連接部13とは電気的に絶縁状態になっている。   The frame 4 is a quadrilateral shape that surrounds the switch spring 10 in a plan view, and is provided with a flange 5 that restricts the movement of the button 6 at the top, and is fixed to the substrate. This frame 4 restricts the movement of the connecting portion 14 in the switch spring 10 in the horizontal direction. In the switch spring 10, the curved vertex of the movable contact portion 11 is in contact with the pressing convex portion 7 of the push button 6, and the spring force is applied to the push button 6 to push it outward (upward in the drawing). On the other hand, as a reaction force, the switch spring 10 is pressed against the lower substrate 1, and the convex portions 15, 16, and 17 of the regular contact portion 12 make regular contact with the second terminal portion of the second terminal wiring 3. Keep electrical continuity. There is a first terminal of the first terminal wiring 2 at a position corresponding to the center of the movable connection portion 11 in the frame 4. Although illustration is omitted, insulation is performed except for the first terminal and the second terminal portion on the terminal wiring in the frame 4, and the connection portion 13 is electrically insulated.

使用者が押しボタン6を押して、押込み凸部7がスイッチバネ10にある可動接点部11の湾曲形状の頂点を押し下げると、スイッチバネ10は平らになろうとするが、両端の動きは連接部14により規制されているために平らになることが出来ず、押圧力がある大きさに達すると中央部が一種の挫屈を起こし逆方向に湾曲して、可動接点部11の頂点の下部が第一端子配線2の第1の端子に接触し、第一端子配線2と第二端子配線3とはスイッチバネを介して接続し、電気的導通状態となる。可動接点部11の形状の変化をクリックと称し、使用者が指を離し押力を取り除くと可動接点部11は元の形状に復帰し、第一端子配線2と第二端子配線3との回路は開放状態となり、電気的接続は無くなり、スイッチ動作をする。   When the user pushes the push button 6 and the push-in convex part 7 pushes down the apex of the curved shape of the movable contact part 11 in the switch spring 10, the switch spring 10 tries to flatten, but the movement of both ends is connected to the connecting part 14. The center portion of the movable contact portion 11 is bent in the opposite direction when the pressing force reaches a certain level, and the lower portion of the top of the movable contact portion 11 is bent in the first direction. The first terminal wiring 2 is in contact with the first terminal of the one-terminal wiring 2, and the first terminal wiring 2 and the second terminal wiring 3 are connected via a switch spring to be in an electrically conductive state. The change in the shape of the movable contact portion 11 is referred to as “click”. When the user removes the finger and removes the pressing force, the movable contact portion 11 returns to the original shape, and the circuit of the first terminal wiring 2 and the second terminal wiring 3 Is opened, electrical connection is lost, and the switch operates.

なお、本出願人が先に提案した下記特許文献には常接接点部の凸部に錐形形状を採用し、クリック動作の明瞭化と電気的導通の確実性をました押しボタンスイッチの提示がある。
特開平11−144559号
In addition, the following patent document previously proposed by the present applicant has adopted a conical shape for the convex part of the contact point contact part to clarify the click operation and ensure the electrical continuity. There is.
JP-A-11-144559

小型化したボタンスイッチと雖も心地よい使用感を与えるためには、適度の抵抗とクリック感を安定的に確保しなければならない。そのためには可動接点部11が押圧を受けたときに連接部13を含むスイッチバネ10全体が水平にならないようにし、適度な押圧で湾曲の中央部のみが瞬時に反転してMの字状の波型になる必要がある。これをスイッチバネ単体で行うには押圧の如何に関らず連接部13の反り形状の変化があまり生じないようにしなければならない。それには常接接点部12の剛性を上げることが一体となっている連接部13の剛性を高めることとなって有効である。これを実現するために図3のように常接接点部12に錐形の凸部を沢山設けているが、形状が複雑なので、整形冶具金型の形状も複雑になり、製作コストを高くしている。   In order to provide a comfortable use feeling even with a downsized button switch and bag, it is necessary to stably secure an appropriate resistance and click feeling. For this purpose, when the movable contact portion 11 is pressed, the entire switch spring 10 including the connecting portion 13 is not leveled, and only the central portion of the curve is instantaneously reversed with an appropriate pressure so that the M-shaped shape is reversed. It needs to be corrugated. In order to perform this operation with a single switch spring, it is necessary to prevent a change in the warped shape of the connecting portion 13 from occurring regardless of the pressure. For this purpose, increasing the rigidity of the regular contact portion 12 is effective in increasing the rigidity of the connecting portion 13. In order to achieve this, many conical protrusions are provided on the contact point 12 as shown in FIG. 3. However, since the shape is complicated, the shape of the shaping jig mold becomes complicated, which increases the manufacturing cost. ing.

さらに、一枚材料で構成されるこの種のスイッチにおいて、クリック特性を大事にしながら耐荷重性、耐久性を考慮して初期形状を決めるには凸部の位置や大きさをいろいろと変え、現物的試行錯誤を繰り返しながらより適正な形状にしていくことが良く行われる。これら実験的試行を行うに際しては凸部の形状が複雑なのは得策ではない。   Furthermore, in this type of switch composed of a single piece of material, in order to determine the initial shape in consideration of load resistance and durability while preserving the click characteristics, the position and size of the protrusions are changed in various ways. It is often performed to make a more appropriate shape by repeating trial and error. In making these experimental trials, it is not a good idea that the shape of the convex portion is complicated.

押圧により変形して第1の端子と接続し、この押圧を排除することにより元の形に戻り接続を解除する可動接点部とこの接点部の両側に有って常に前記第2の固定接続部と接続している常接接点部とは連結部で連結している同一部材からなるスイッチバネにあって、この常接接点部は溝幅一定の凸形状をした接点部を備えたことを特徴とする。   A movable contact part that is deformed by pressing and connected to the first terminal and returns to its original shape by eliminating this pressing and the second fixed connecting part that is always on both sides of the contact part. Is a switch spring made of the same member connected by a connecting portion, and this normal contact portion is provided with a contact portion having a convex shape with a constant groove width. And

上記常接接点部は断面が円筒形または楔形の凸形状の接点部を備えたことを特徴とする。   The normal contact portion includes a convex contact portion having a cylindrical or wedge-shaped cross section.

加えて、両側に位置する常接接点部のそれぞれに複数個の上記凸形状の接点部を有することを特徴とする。   In addition, each of the contact points on both sides has a plurality of convex contact portions.

このように、常接接点部に単純な形状の接点部を設けることにより、従来より小型で低コストのスイッチバネの提供が実現すると共に、整形形状設定のための諸実験を容易にする。   As described above, by providing the contact portion having a simple shape in the normal contact portion, it is possible to provide a switch spring that is smaller and lower in cost than conventional ones, and facilitates various experiments for setting the shaping shape.

以下、図面に基づいて本発明を実施するための最良の形態を説明する。図1は本発明の小型スイッチバネの斜視図で、図2はその側面図である。この種の小型スイッチバネは構成が簡単なのと機能が決っているので、名称と部番は図3と同じものを使用する。以下、同一名称のものは特に断らない限り本発明の実施形態に関るものとする。   Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a small switch spring of the present invention, and FIG. 2 is a side view thereof. Since this type of small switch spring has a simple configuration and functions, the same name and part number as those in FIG. 3 are used. Hereinafter, the thing of the same name shall relate to embodiment of this invention unless there is particular notice.

図1において、このスイッチ10は一枚の板でほぼ長方形に作られ、中央が上方向のアーチ状に湾曲した可動接点部11である。スイッチバネ全体は、この可動接点部11の中心を軸に左右上下対象であって、平行な二つのスリット14を挟んで両側には常接接点部12があり、可動接点部11と常接接点部12のそれぞれ両端は連接部13により連接された構造である。   In FIG. 1, the switch 10 is a movable contact portion 11 which is formed in a substantially rectangular shape with a single plate and whose center is curved in an upward arch shape. The entire switch spring is subject to left and right up and down with the center of the movable contact portion 11 as an axis, and there are always contact points 12 on both sides of two parallel slits 14. Both ends of the part 12 are connected by the connecting part 13.

常接接点部12には、可動接点部11の湾曲と反対方向に***し、常接接点部12を横断する2つの凸部15、16を設けている。この凸部の溝幅は一定であって、断面形状はほぼ円弧、または、それに近い形状をしている。同様に、可動接点部11を挟んだ反対側も同じ構造で、常接接点部と二つの凸部を有する。   The normal contact portion 12 is provided with two convex portions 15 and 16 that protrude in a direction opposite to the curve of the movable contact portion 11 and cross the normal contact portion 12. The groove width of the convex portion is constant, and the cross-sectional shape is substantially a circular arc or a shape close thereto. Similarly, the opposite side across the movable contact portion 11 has the same structure, and has a regular contact portion and two convex portions.

図3に示す従来のスイッチバネの凸部の溝幅は外側と内側が異なるので、この形状を整形するにはパンチ金型を錐形のものを使用しなければならない。対して、本実施例では溝幅が一定であるから筒型の金型を使用することが出来る。錐形のものは受型も含めて製作が面倒なばかりか、冶具としての組立も調整が一次元増えて困難を伴う。その点、本実施例のように筒形であれば、金型類の製作も形が単純なだけ容易である。結果として、比較的廉価なスイッチバネの供給が可能となる。   Since the groove width of the convex portion of the conventional switch spring shown in FIG. 3 is different between the outside and the inside, a punch die having a cone shape must be used to shape this shape. On the other hand, in this embodiment, since the groove width is constant, a cylindrical mold can be used. The conical shape is not only difficult to manufacture including the receiving mold, but also the assembly as a jig is more difficult to adjust in one dimension. In that respect, if it is a cylindrical shape like a present Example, manufacture of metal mold | dies is easy as much as the shape is simple. As a result, a relatively inexpensive switch spring can be supplied.

そもそも錐形凸部の目的は凸形の採用により接点としての接触を高めると同時に、クリック感覚を確保するために常接接続部の剛性をあげ、それにより連接部の拘束を高め、見かけ上の剛性を上げることであった。この効果は認められるものの、本実施例においても筒形の凸部を整形することにより折り曲げ効果は出て常接接点部の剛性と連接部の拘束を上げることが出来る。溝の深さ、溝の位置、溝の向きなどの調整により、かなり近い結果が得られる。これらの最良条件を探すのにかなりの試行錯誤的実験を繰り返さなければならないのは錐形も筒型も変わりがない。しかし、この条件変更のセッティングも形状が単純な筒型の方が優れており、この点での現実的利便性も筒型が優れている。   In the first place, the purpose of the cone-shaped convex part is to increase the contact as a contact point by adopting the convex shape, and at the same time increase the rigidity of the regular connection part to secure the click feeling, thereby increasing the restraint of the connection part, apparently It was to increase the rigidity. Although this effect is recognized, also in this embodiment, the bending effect can be obtained by shaping the cylindrical convex portion, and the rigidity of the normal contact portion and the restraint of the connecting portion can be increased. By adjusting the depth of the groove, the position of the groove, the direction of the groove, etc., a fairly close result can be obtained. The search for these best conditions requires repeated trial and error experiments, no different from the cones and cylinders. However, the cylindrical shape with a simple shape is superior in the setting for changing the condition, and the cylindrical shape is also superior in terms of practical convenience in this respect.

図示は省略するが、接点圧力を増すために断面形状を楔形に近い形にすることも出来る。この場合でも、溝幅一定の金型であれば、整形時のパンチ金型の作成は錐形の金型を作るのに比べれば遥かに容易で同じ目的を達成できる。薄型・小型スイッチバネの特性を上げる手段としてSUS材の中でも超硬質材を使用することで動作の確実性と電気的安定性を実現している。   Although not shown, the cross-sectional shape can be made close to a wedge shape in order to increase the contact pressure. Even in this case, if the die has a constant groove width, the punching die at the time of shaping is much easier than the conical die and can achieve the same purpose. Operation reliability and electrical stability are realized by using super hard materials among SUS materials as a means to improve the characteristics of thin and small switch springs.

以上説明したように、本発明のスイッチバネを小型、薄型のスイッチに適用することにより、比較的廉価なスイッチバネの供給が可能となり、より価格の安い小型スイッチが実現でき、これを組み込んだ電気機器、特に可動型、携帯型電気機器の利用のし易さを促すことが出来る。   As described above, by applying the switch spring of the present invention to a small and thin switch, it is possible to supply a relatively inexpensive switch spring and realize a small switch with a lower price. It is possible to promote ease of use of devices, particularly movable and portable electric devices.

本発明のスイッチバネの斜視図である。It is a perspective view of the switch spring of the present invention. 本発明のスイッチバネの側面図である。It is a side view of the switch spring of the present invention. 従来のスイッチバネの一例で、斜視図である。It is an example of the conventional switch spring, and is a perspective view. 小型スイッチの一例で、押しボタンスイッチの断面図である。It is an example of a small switch and is a cross-sectional view of a push button switch.

符号の説明Explanation of symbols

1、基板
2、3、端子配線
4、枠
5、庇
6、ボタン
7、押込み凸部
10、スイッチバネ
11、可動接点部
12、常接接点部
13、連接部
14、スリット
15、16、17、凸部

DESCRIPTION OF SYMBOLS 1, Board | substrate 2, 3, Terminal wiring 4, Frame 5, 庇 6, Button 7, Pushing convex part 10, Switch spring 11, Movable contact part 12, Regular contact part 13, Connection part 14, Slit 15, 16, 17 , Convex

Claims (4)

第1の端子と第2の端子とを接続・切断するスイッチにおいて、
中央にアーチ状に湾曲した可動接点部と該可動接点部とスリットを介し両側にあって前記第2の端子と常時接続している常接接点部と、前記可動接点部と前記常接接点部の両端を一体に結合する連接部からなり、前記可動接点部の中央の押圧により該可動接点部が湾曲の反対側に変形して前記第1の端子に接触するスイッチバネにあって、
前記常接接点部は溝幅一定の凸形状をした接点部を備えたことを特徴とする小型スイッチバネ。
In a switch for connecting / disconnecting the first terminal and the second terminal,
A movable contact portion curved in the center in an arch shape, a regular contact portion that is on both sides of the movable contact portion and the slit and is always connected to the second terminal, the movable contact portion, and the regular contact portion A switch spring that is connected to the first terminal by deforming the movable contact portion to the opposite side of the curve by pressing the center of the movable contact portion.
2. The small switch spring according to claim 1, wherein the normal contact portion includes a contact portion having a convex shape with a constant groove width.
請求項1の小型スイッチバネにおいて、
前記接点部の断面形状が円弧形状をしていることを特徴とするスイッチバネ。
In the small switch spring of claim 1,
A switch spring characterized in that a cross-sectional shape of the contact portion has an arc shape.
請求項1の小型スイッチバネにおいて、
前記接点の断面形状が楔形をしていることを特徴とするスイッチバネ。
In the small switch spring of claim 1,
A switch spring characterized in that a cross-sectional shape of the contact is wedge-shaped.
請求項1の小型スイッチバネにおいて、
前記両側の常接接点部にそれぞれに前記接点部を複数個備えたことを特徴とするスイッチバネ。
In the small switch spring of claim 1,
A switch spring comprising a plurality of contact portions on each of the normal contact portions on both sides.
JP2004160920A 2004-05-31 2004-05-31 Small-sized switch spring Pending JP2005340126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004160920A JP2005340126A (en) 2004-05-31 2004-05-31 Small-sized switch spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004160920A JP2005340126A (en) 2004-05-31 2004-05-31 Small-sized switch spring

Publications (1)

Publication Number Publication Date
JP2005340126A true JP2005340126A (en) 2005-12-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004160920A Pending JP2005340126A (en) 2004-05-31 2004-05-31 Small-sized switch spring

Country Status (1)

Country Link
JP (1) JP2005340126A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10096439B2 (en) 2016-09-02 2018-10-09 Citizen Electronics Co., Ltd. Spring plate, push switch including spring plate, and electronic device including push switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10096439B2 (en) 2016-09-02 2018-10-09 Citizen Electronics Co., Ltd. Spring plate, push switch including spring plate, and electronic device including push switch

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