JP2006164552A - Contact plate for switch and push-button switch using it - Google Patents

Contact plate for switch and push-button switch using it Download PDF

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JP2006164552A
JP2006164552A JP2004349766A JP2004349766A JP2006164552A JP 2006164552 A JP2006164552 A JP 2006164552A JP 2004349766 A JP2004349766 A JP 2004349766A JP 2004349766 A JP2004349766 A JP 2004349766A JP 2006164552 A JP2006164552 A JP 2006164552A
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switch
contact plate
sheet
protrusion
leaf spring
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Hisaya Iwama
尚也 岩間
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/05—Force concentrator; Actuating dimple

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a contact plate for a switch accurately transmitting pressing force from a key top to a plate spring and in which improvement can be made in layout freedom and a push-button switch using it. <P>SOLUTION: The contact plate for the switch is provided with a plate spring 2 with a reversible dome part 2a consisting of a thin metal plate and a protrusion 4 for transmission of the pressing force formed on a top surface side of the plate spring 2 corresponding to a top part of the dome part 2a of the plate spring 2. The protrusion 4 is formed on the top surface side of a sheet with adhesive 3 with an exterior shape which is greater than the protrusion 4 but smaller than the plate spring 2 and the protrusion 4 is adhered to the plate spring 2 by the adhesive on the sheet with adhesive 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、押圧操作によって接点の切り換えを行なうスイッチ用接点板及びこれを用いた押釦スイッチに関する。   The present invention relates to a switch contact plate for switching contacts by a pressing operation and a push button switch using the switch contact plate.

従来のスイッチ用接点板を用いた押釦スイッチの構造としては、固定接点を有する回路基板上に設けられた上部シートの上面に、固定接点と対向して載置された可動接点に対応する位置に突起を形成し、この突起を介してキートップからの押圧力を可動接点に伝達するようにした構成のものが知られている（例えば、特許文献１参照）。
この従来のスイッチ用接点板用いた押釦スイッチの構造を図６に示す。図６は従来のスイッチ用接点板を用いた押釦スイッチの断面図であり、同図において、押釦スイッチは、下部基板３１と、下面にタクトばね３２が接着された上部シート３３と、タクトばね３２を駆動するためのキートップ３４とによって概略構成されている。 The structure of a conventional pushbutton switch using a switch contact plate is a position corresponding to a movable contact placed on the upper surface of an upper sheet provided on a circuit board having a fixed contact so as to face the fixed contact. There is known a structure in which a protrusion is formed and a pressing force from a key top is transmitted to the movable contact through the protrusion (for example, see Patent Document 1).
FIG. 6 shows the structure of a pushbutton switch using this conventional switch contact plate. FIG. 6 is a cross-sectional view of a conventional pushbutton switch using a switch contact plate. In this figure, the pushbutton switch includes a lower substrate 31, an upper sheet 33 having a tact spring 32 bonded to the lower surface, and a tact spring 32. And a key top 34 for driving the motor.

下部基板３１の表面には光源としてのＬＥＤ３５が実装されると共に、中央固定接点３６とそれを包囲する周縁固定接点３７が設けられている。実施例では中央固定接点３６と周縁固定接点３７の対がマトリクス状に複数配列されている。   On the surface of the lower substrate 31, an LED 35 as a light source is mounted, and a central fixed contact 36 and a peripheral fixed contact 37 surrounding the central fixed contact 36 are provided. In the embodiment, a plurality of pairs of center fixed contacts 36 and peripheral fixed contacts 37 are arranged in a matrix.

タクトばね３２は可動接点として機能するもので、リン青銅等の金属ばね材料を円椀状にフォーミングして形成されている。タクトばね３２の周縁部は周縁固定接点３７に常時接触しているが、その頂部は中央固定接点３６と所定間隔を存して離間している。タクトばね３２の頂部は上部シート３３の下面に接着されており、実施例では中央固定接点３６と周縁固定接点３７の配列に合わせて複数のタクトばね３２が上部シート３３の下面にマトリクス状に配設されている。   The tact spring 32 functions as a movable contact, and is formed by forming a metal spring material such as phosphor bronze into a circular shape. The peripheral edge of the tact spring 32 is always in contact with the peripheral fixed contact 37, but its top is separated from the central fixed contact 36 at a predetermined interval. The top of the tact spring 32 is bonded to the lower surface of the upper sheet 33. In the embodiment, a plurality of tact springs 32 are arranged in a matrix on the lower surface of the upper sheet 33 according to the arrangement of the central fixed contact 36 and the peripheral fixed contact 37. It is installed.

上部シート３３はＰＥＴフィルム等の材料からなり、その上面に突起３８が形成されている。この突起３８の形成位置は上部シート３３の下面に接着されたタクトばね３２の頂部に対応しており、実施例では複数の突起３８が上部シート３３の上面にマトリクス状に形成されている。これら突起３８は例えばウレタン系樹脂を上部シート３３の上面に印刷することによって形成されている。また、上部シート３３の周縁部と下部基板３１は接着剤等を用いて枠体３９に一体化されており、これら各部材でスイッチユニット部が構成されている。   The upper sheet 33 is made of a material such as a PET film, and a projection 38 is formed on the upper surface thereof. The formation positions of the protrusions 38 correspond to the tops of the tact springs 32 bonded to the lower surface of the upper sheet 33. In the embodiment, a plurality of protrusions 38 are formed on the upper surface of the upper sheet 33 in a matrix. These protrusions 38 are formed, for example, by printing urethane resin on the upper surface of the upper sheet 33. Moreover, the peripheral part of the upper sheet | seat 33 and the lower board | substrate 31 are integrated with the frame 39 using the adhesive agent etc., and the switch unit part is comprised by these each member.

キートップ３４はアクリル樹脂等で成形されている。キートップ３４の上部は外装ケース４０のガイド孔４０ａから突出しており、外装ケース４０はねじ止めや接着剤等を用いて枠体３９に固定されている。キートップ３４の底面は上部シート３３の突起３８に対向しており、したがって、実施例では複数のキートップ３４が外装ケース４０にマトリクス状に配列されている。   The key top 34 is formed of acrylic resin or the like. The upper part of the key top 34 protrudes from the guide hole 40a of the outer case 40, and the outer case 40 is fixed to the frame body 39 using screws or an adhesive. The bottom surface of the key top 34 faces the protrusion 38 of the upper sheet 33. Therefore, in the embodiment, a plurality of key tops 34 are arranged in a matrix in the outer case 40.

上記押釦スイッチは、キートップ３４が押圧されると、その押圧力が突起３８と上部シート３３を介して下方のタクトばね３２の頂部に伝達されるため、タクトばね３２が反転し、頂部が中央固定接点３６に接触してスイッチオン状態となる。その際、各部材の寸法誤差や組立誤差等で各キートップ３４とスイッチユニット部の相対位置が多少ずれたとしても、突起３８と上部シート３３を介してタクトばね３２が押圧されるため、タクトばね３２の動作フィーリングが悪化することはない。   When the key top 34 is pressed, the pressing force of the push button switch is transmitted to the top of the lower tact spring 32 via the projection 38 and the upper sheet 33, so that the tact spring 32 is reversed and the top is centered. The switch contacts with the fixed contact 36. At this time, even if the relative positions of the key tops 34 and the switch unit portion are slightly shifted due to dimensional errors or assembly errors of the respective members, the tact spring 32 is pressed through the protrusions 38 and the upper sheet 33, so that The operational feeling of the spring 32 is not deteriorated.

特開平１１−７８６２号公報Japanese Patent Laid-Open No. 11-7862

しかしながら、上述した従来のスイッチ用接点板及びこれを用いた押釦スイッチにおいては、可動接点であるタクトばね３２の配置に合わせて上部シート３３の上面に突起３８を形成するため、多様なレイアウトに対応するのが難しく、安価にできないという問題があった。   However, in the conventional switch contact plate and the pushbutton switch using the same, the protrusion 38 is formed on the upper surface of the upper sheet 33 in accordance with the arrangement of the tact spring 32 which is a movable contact, so that it can cope with various layouts. There was a problem that it was difficult to do and could not be made cheap.

従って、本発明は上記した問題点を解決し、キートップからの押圧力を板ばねに確実に伝達でき、レイアウト自由度の向上が可能なスイッチ用接点板及びこれを用いた押釦スイッチを提供することを目的とする。   Accordingly, the present invention solves the above-described problems, and provides a switch contact plate that can reliably transmit a pressing force from a key top to a leaf spring and can improve layout flexibility, and a push button switch using the switch contact plate. For the purpose.

上記課題を解決するために本発明では第１の解決手段として、金属薄板からなり反転可能なドーム部を有する板ばねと、この板ばねのドーム部の頂部に対応させて前記板ばねの上面側に形成された押圧力伝達用の突部とを備え、前記突部を、該突部よりも大きくて前記板ばねよりも小さい外形を持つ粘着剤付きシートの上面側に形成し、前記粘着剤付きシートの粘着剤により前記突部を前記板ばね上に貼り付けた構成とした。
また、第２の解決手段として、前記突部を、固着面から先端側に向かって先細状に形成した構成とした。 In order to solve the above-mentioned problems, the present invention provides a first solution means of a leaf spring having a reversible dome portion made of a thin metal plate and an upper surface side of the leaf spring corresponding to the top portion of the dome portion of the leaf spring. A protrusion for pressing force transmission formed on the upper surface of an adhesive sheet having an outer shape larger than the protrusion and smaller than the leaf spring, and the adhesive. It was set as the structure which affixed the said protrusion on the said leaf | plate spring with the adhesive of the attached sheet.
Further, as a second solving means, the protrusion is tapered from the fixing surface toward the tip side.

また、第３の解決手段として、第１、又は第２の解決手段に記載のスイッチ用接点板と、可撓性を有し上下に貫通する挿通孔を介して上面側に前記突部が突出され下面側に前記スイッチ用接点板が貼り付けられた絶縁シートと、固定接点が設けられ該固定接点上に前記スイッチ用接点板が載置された状態で前記絶縁シートが積層される回路基板とを備えた構成とした。
また、第４の解決手段として、第１、又は第２の解決手段に記載のスイッチ用接点板と、収納部を有しこの収納部の内底面に固定接点が配設されたハウジングと、このハウジングの上面側に設けられ、前記収納部に収納された前記スイッチ用接点板を前記固定接点に対向させて保持する保持手段とを備えた構成とした。
また、第５の解決手段として、前記保持手段を、前記ハウジングの上面側に嵌着される金属フレームで形成し、この金属フレームに前記スイッチ用接点板の突部を突出する挿通孔を設け、この挿通孔の下面周縁部と前記粘着材付きシートの上面部とを対向させて配置した構成とした。 Further, as a third solution means, the protrusion protrudes on the upper surface side through the switch contact plate described in the first or second solution means and a flexible insertion hole penetrating vertically. And a circuit board on which the insulating sheet is laminated in a state where the fixed contact is provided and the switch contact plate is placed on the fixed contact. It was set as the structure provided with.
Further, as a fourth solution means, a switch contact plate described in the first or second solution means, a housing having a storage portion and a fixed contact disposed on the inner bottom surface of the storage portion, A holding means is provided on the upper surface side of the housing and holds the switch contact plate housed in the housing portion so as to face the fixed contact.
Further, as a fifth solving means, the holding means is formed of a metal frame fitted on the upper surface side of the housing, and an insertion hole for projecting the projection of the switch contact plate is provided in the metal frame, It was set as the structure arrange | positioned facing the lower surface peripheral part of this insertion hole, and the upper surface part of the said sheet | seat with an adhesive material.

上述したように、本発明のスイッチ用接点板は、金属薄板からなり反転可能なドーム部を有する板ばねと、板ばねのドーム部の頂部に対応させて板ばねの上面側に形成された押圧力伝達用の突部とを備え、突部を、突部よりも大きくて板ばねよりも小さい外形を持つ粘着剤付きシートの上面側に形成し、粘着剤付きシートの粘着剤により突部を板ばね上に貼り付けた構成としたことから、スイッチ用接点板となる板ばねのドーム部の頂部に合わせて、板ばねの上面側に突部を有する粘着剤付きシートを後付けで形成できるので、レイアウトの自由度が向上すると共に、容易に製造できる。また、粘着剤付きシートの外形を、板ばねの外形よりも小さくしたことから、押圧された際に板ばねの反転動作を阻害せずに良好なクリック感が得られる。
また、突部を、固着面から先端側に向かって先細状に形成したことから、突部に当接される押圧用のキートップが傾いても突部のセンターで押せるので、板ばねの頂部への押圧力伝達を確実に行なうことができる。 As described above, the switch contact plate of the present invention includes a leaf spring having a reversible dome portion made of a thin metal plate, and a pressing formed on the upper surface side of the leaf spring so as to correspond to the top portion of the dome portion of the leaf spring. A protrusion for pressure transmission, the protrusion is formed on the upper surface side of the adhesive sheet having an outer shape larger than the protrusion and smaller than the leaf spring, and the protrusion is formed by the adhesive of the adhesive sheet. Since it is configured to be affixed on a leaf spring, a sheet with an adhesive having a protrusion on the upper surface side of the leaf spring can be retrofitted to match the top of the dome portion of the leaf spring that will be the switch contact plate. In addition, the degree of freedom of layout is improved and the manufacturing can be easily performed. Moreover, since the external shape of the sheet | seat with an adhesive was made smaller than the external shape of a leaf | plate spring, when it presses, a favorable click feeling is obtained, without inhibiting the inversion operation | movement of a leaf | plate spring.
In addition, since the protrusion is formed in a tapered shape from the fixing surface toward the tip side, even if the pressing key top abutting on the protrusion is tilted, it can be pressed at the center of the protrusion, so that the top of the leaf spring It is possible to reliably transmit the pressing force to.

また、本発明の押釦スイッチは、第１、又は第２の解決手段に記載のスイッチ用接点板と、可撓性を有し上下に貫通する挿通孔を介して上面側に突部が突出され下面側にスイッチ用接点板が貼り付けられた絶縁シートと、固定接点が設けられ固定接点上にスイッチ用接点板が載置された状態で絶縁シートが積層される回路基板とを備えた構成としたことから、多様なレイアウトに容易に対応できるスイッチ用接点板を備えた押釦スイッチを安価に提供できる。
また、第１、又は第２の解決手段に記載のスイッチ用接点板と、収納部を有し収納部の内底面に固定接点が配設されたハウジングと、ハウジングの上面側に設けられ、収納部に収納されたスイッチ用接点板を固定接点に対向させて保持する保持手段とを備えた構成としたことから、押圧用のキートップの板ばねの頂部への押圧力伝達を確実に行なうことができる押釦スイッチを容易に提供できる。
また、保持手段を、ハウジングの上面側に嵌着される金属フレームで形成し、金属フレームにスイッチ用接点板の突部を突出する挿通孔を設け、挿通孔の下面周縁部と粘着材付きシートの上面部とを対向させて配置した構成としたことから、金属フレームとスイッチ用接点板との短絡を防止でき、収納部を覆うことができるので固定接点やスイッチ用接点板を外部の塵埃などから保護することができる。 Further, the pushbutton switch of the present invention has a protrusion protruding on the upper surface side through the switch contact plate described in the first or second solving means and a flexible insertion hole penetrating vertically. A configuration comprising an insulating sheet having a switch contact plate affixed to the lower surface side, and a circuit board on which the insulating sheet is laminated in a state where the fixed contact is provided and the switch contact plate is placed on the fixed contact; Therefore, a pushbutton switch including a switch contact plate that can easily cope with various layouts can be provided at low cost.
Further, the switch contact plate described in the first or second solving means, a housing having a storage portion and having a fixed contact disposed on the inner bottom surface of the storage portion, provided on the upper surface side of the housing, and stored The switch contact plate housed in the part is provided with a holding means that holds the switch contact plate facing the fixed contact, so that the pressing force is reliably transmitted to the top of the leaf spring of the key top for pressing. It is possible to easily provide a push button switch that can be used.
Further, the holding means is formed of a metal frame fitted on the upper surface side of the housing, the metal frame is provided with an insertion hole for projecting the protrusion of the switch contact plate, and the lower peripheral edge of the insertion hole and the sheet with the adhesive material Since the upper surface of the metal plate is arranged opposite to each other, a short circuit between the metal frame and the switch contact plate can be prevented, and the housing can be covered. Can be protected from.

以下、本発明の実施の形態を図１乃至図５に示す。図１は本発明の実施例に係るスイッチ用接点板を示すフープ状態の平面図、図２は本発明のスイッチ用接点板を用いたコンタクトシートを示す断面図、図３は本発明のスイッチ用接点板を用いたシート状の押釦スイッチ示す断面図、図４は本発明のスイッチ用接点板を用いた単キーの押釦スイッチを示す断面図、図５は本発明のスイッチ用接点板を用いた単キーの押釦スイッチの他の実施例を示す断面図である。   Embodiments of the present invention are shown in FIGS. 1 to 5 below. 1 is a plan view of a hoop state showing a switch contact plate according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a contact sheet using the switch contact plate of the present invention, and FIG. 3 is for a switch of the present invention. FIG. 4 is a cross-sectional view showing a single key push button switch using the switch contact plate of the present invention, and FIG. 5 is a switch contact plate of the present invention. It is sectional drawing which shows the other Example of the pushbutton switch of a single key.

図１及び図２において、本発明のスイッチ用接点板１は、例えば円形状の導電性の金属薄板からなり、中央に反転可能なドーム部２ａを有し、可動接点としての機能を備えている板ばね２と、前記板ばね２の前記ドーム部２ａの頂部に対応して、前記板ばね２の上面側に貼り付けられた、可撓性を有する合成樹脂等の絶縁材でシート状に形成され、下面に粘着剤が一面に塗布された粘着剤付きシート３とで構成されている。   1 and 2, the switch contact plate 1 of the present invention is made of, for example, a circular conductive thin metal plate, has a dome portion 2a that can be reversed at the center, and has a function as a movable contact. Corresponding to the top of the dome part 2a of the leaf spring 2 and the leaf spring 2, the sheet spring 2 is formed in a sheet shape with an insulating material such as a flexible synthetic resin affixed to the upper surface side of the leaf spring 2. And a sheet 3 with a pressure-sensitive adhesive having a pressure-sensitive adhesive coated on the bottom surface.

この粘着剤付きシート３は、外形が、前記板ばね２よりも小さく形成されている。この場合の外形形状は、前記板ばね２の外形より小さければ円形でも矩形状でも多角形でも良い。尚、本実施例では、外形形状は前記板ばね２に合わせて円形状に形成されている。このように、前記粘着剤付きシート３の外形の大きさが、前記板ばね２の外形よりも小さく形成されているので、前記板ばね２が押圧された際には、前記板ばね２のドーム部２ａの反転動作を阻害せずに良好なクリック感が得られるものとなっている。   The pressure-sensitive adhesive sheet 3 has an outer shape smaller than that of the leaf spring 2. The outer shape in this case may be circular, rectangular or polygonal as long as it is smaller than the outer shape of the leaf spring 2. In this embodiment, the outer shape is formed in a circular shape in accordance with the leaf spring 2. Thus, since the size of the outer shape of the sheet 3 with adhesive is smaller than the outer shape of the leaf spring 2, the dome of the leaf spring 2 is pressed when the leaf spring 2 is pressed. A good click feeling can be obtained without hindering the inversion operation of the portion 2a.

前記粘着剤付きシート３の上面側には、前記板ばね２の前記ドーム部２ａの頂部に対応した位置に、図示しないキートップ等の下面と当接して押圧される、押圧力伝達用の突部４が設けられている。この突部４は、例えばウレタン等からなる合成樹脂や接着剤等の樹脂材を接着することにより固着形成されるもので、この場合、前記突部４の形状は、固着面が前記粘着剤付きシート３の外形よりも小さくて、前記粘着剤付きシート３の上面の固着面から先端側に向かって先細状に形成されている。このため、図示しないキートップが傾いて押圧された場合においても、前記突部４の略センター位置で押せることになるので、前記板ばね２の頂部への押圧力伝達を確実に行なうことができるものとなっている。   On the upper surface side of the pressure-sensitive adhesive sheet 3, a protrusion for transmitting a pressing force is pressed against a lower surface of a key top (not shown) at a position corresponding to the top of the dome portion 2a of the leaf spring 2. Part 4 is provided. The protrusion 4 is fixedly formed by adhering, for example, a synthetic resin made of urethane or the like, or a resin material such as an adhesive. In this case, the protrusion 4 has a fixed surface with the adhesive. It is smaller than the outer shape of the sheet 3 and is formed in a tapered shape from the fixing surface on the upper surface of the sheet 3 with adhesive to the front end side. For this reason, even when a key top (not shown) is tilted and pressed, it can be pressed at the approximate center position of the protrusion 4, so that it is possible to reliably transmit the pressing force to the top of the leaf spring 2. It has become a thing.

また、前記粘着剤付きシート３を、透光性を有するシートで形成するようにしても良い。このように、透光性シートで前記粘着剤付きシート３を形成することにより、前記突部４を、前記粘着剤付きシート３の上面に、ＵＶ（紫外線）硬化型の接着剤を使用してＵＶ接着することが可能となる。この場合には、前記粘着剤付きシート３に前記突部４を、ＵＶ（紫外線）を用いて容易に確実に接着することができるものとなる。   Moreover, you may make it form the said sheet | seat 3 with an adhesive with the sheet | seat which has translucency. In this way, by forming the pressure-sensitive adhesive sheet 3 with a translucent sheet, the protrusion 4 is formed on the upper surface of the pressure-sensitive adhesive sheet 3 using a UV (ultraviolet) curable adhesive. UV bonding is possible. In this case, the protrusion 4 can be easily and reliably adhered to the pressure-sensitive adhesive sheet 3 using UV (ultraviolet rays).

また、図示はしないが、前記粘着剤付きシート３にプレス等でエンボス加工を施すことにより、前記突部４を前記粘着剤付きシート３に一体的に成形加工することもできる。この場合には、合成樹脂や接着剤等の樹脂材を接着することにより前記粘着剤付きシート３に前記突部４を固着形成する必要がないので、製造工程が簡易となり、安価対応が可能となる。   Moreover, although not shown in figure, the said protrusion 4 can also be integrally processed by the said sheet | seat 3 with an adhesive by embossing the sheet | seat 3 with an adhesive with a press etc. In this case, it is not necessary to fix and form the protrusion 4 on the pressure-sensitive adhesive sheet 3 by adhering a resin material such as a synthetic resin or an adhesive, so that the manufacturing process is simplified and the cost can be reduced. Become.

尚、図１に示すのは、上記スイッチ用接点板１を帯状の金属板からなるフープ材５に複数個連設した状態を示している。この場合、スイッチ用接点板１は外周縁部の両側が一対の繋ぎ桟５ａでフープ材５に連結されたものとなっている。スイッチ用接点板１を製造する場合には、まず帯状のフープ材５にプレスなどの方法で繋ぎ桟５ａに連結した複数の円形からなる板ばね２を形成する。この場合、フープ材５をガイド穴５ｂでガイドして順次送ることで連続加工が可能となっている。次に、板ばね２の上面側に同じく順次送ることで突部４が設けられた粘着剤付きシート３を順次貼り付け、最後に両側の繋ぎ桟５ａを切断することにより個々のスイッチ用接点板１が形成されるものとなる。   FIG. 1 shows a state in which a plurality of the switch contact plates 1 are connected to a hoop material 5 made of a strip-shaped metal plate. In this case, the switch contact plate 1 is configured such that both sides of the outer peripheral edge portion are connected to the hoop material 5 by a pair of connecting bars 5a. When the switch contact plate 1 is manufactured, first, the leaf spring 2 made of a plurality of circles is formed on the band-like hoop material 5 and connected to the crosspiece 5a by a method such as pressing. In this case, continuous processing is possible by guiding the hoop material 5 through the guide holes 5b and sequentially feeding them. Next, the sheet 3 with the adhesive provided with the protrusions 4 is sequentially pasted to the upper surface side of the leaf spring 2 in sequence, and finally the connecting bars 5a on both sides are cut, whereby the individual contact plates for the switches. 1 is formed.

このように、本発明のスイッチ用接点板１は、金属薄板からなり反転可能なドーム部２ａを有する前記板ばね２と、この板ばね２のドーム部２ａの頂部に対応させて該板ばね２の上面側に形成された押圧力伝達用の前記突部４とを備えており、前記突部４を、該突部４よりも大きくて前記板ばね２よりも小さい外形を持つ前記粘着剤付きシート３の上面側に形成し、前記粘着剤付きシート３の粘着剤により前記突部４を前記板ばね２上に貼り付けた構成としたことから、スイッチ用接点板１となる前記板ばね２のドーム部２ａの頂部に合わせて、前記板ばね２の上面側に前記突部４を有する前記粘着剤付きシート３を後付けで形成できるので、容易に製造できると共に、レイアウトの自由度が向上するものとなる。   As described above, the switch contact plate 1 of the present invention includes the leaf spring 2 that is made of a thin metal plate and has the dome portion 2a that can be reversed, and the leaf spring 2 corresponding to the top of the dome portion 2a of the leaf spring 2. And the protrusion 4 for transmitting the pressing force formed on the upper surface side of the adhesive. The protrusion 4 is attached with the adhesive having an outer shape larger than the protrusion 4 and smaller than the leaf spring 2. Since the protrusion 4 is formed on the leaf spring 2 with the adhesive of the sheet 3 with adhesive, the leaf spring 2 serving as the switch contact plate 1 is formed on the upper surface side of the sheet 3. The sheet 3 with the adhesive having the protrusion 4 on the upper surface side of the leaf spring 2 can be formed by retrofitting to the top of the dome portion 2a of the leaf spring 2, so that it can be easily manufactured and the flexibility of layout is improved. It will be a thing.

図２は、上記スイッチ用接点板１を用いたコンタクトシートを示している。絶縁シート６は、可撓性を有する合成樹脂等の絶縁材で、例えば矩形状のシート状に形成されており、適宜位置に上下に貫通した複数の挿通孔６ａが設けられ、その下面には粘着剤が一面に塗布されている。そして、前記挿通孔６ａに前記スイッチ用接点板１の上面側に貼着された粘着剤付きシート３の突部４が挿通され、該突部４が絶縁シート６の上面側に突出された状態で、前記絶縁シート６の下面側に、前記スイッチ用接点板１が粘着剤によって貼り付けられている。   FIG. 2 shows a contact sheet using the switch contact plate 1. The insulating sheet 6 is an insulating material such as a synthetic resin having flexibility, and is formed in, for example, a rectangular sheet shape. The insulating sheet 6 is provided with a plurality of insertion holes 6a penetrating vertically at appropriate positions, and on the lower surface thereof. Adhesive is applied on one side. And the protrusion 4 of the sheet | seat 3 with an adhesive stuck on the upper surface side of the said contact plate 1 for switches was penetrated by the said insertion hole 6a, and this protrusion 4 protruded to the upper surface side of the insulating sheet 6 Thus, the switch contact plate 1 is attached to the lower surface side of the insulating sheet 6 with an adhesive.

また、前記絶縁シート６の下面側には、合成樹脂等の絶縁材でシート状に形成されたスペーサシート７が、前記絶縁シート６の下面側に塗布された粘着剤によって貼り付けられている。このスペーサシート７には、上下に貫通した円形の収容孔７ａが設けられており、この収容孔７ａには前記絶縁シート６の下面に貼り付けられた前記スイッチ用接点板１の板ばね２が収容されている。そして、前記絶縁シート６、前記板ばね２、前記粘着剤付きシート３（前記突部４含む）、前記スペーサシート７によりコンタクトシートが構成されている。   A spacer sheet 7 formed in a sheet shape with an insulating material such as a synthetic resin is attached to the lower surface side of the insulating sheet 6 with an adhesive applied to the lower surface side of the insulating sheet 6. The spacer sheet 7 is provided with a circular accommodation hole 7a penetrating vertically, and the leaf spring 2 of the switch contact plate 1 attached to the lower surface of the insulating sheet 6 is provided in the accommodation hole 7a. Contained. The insulating sheet 6, the leaf spring 2, the pressure-sensitive adhesive sheet 3 (including the protrusion 4), and the spacer sheet 7 constitute a contact sheet.

また、前記スペーサシート７の下面側には、前記収容孔７ａを除く一面に粘着剤が塗布されている。そして、前記スペーサシート７の下面側には、搬送時等に、コンタクトシートの下面側に貼り付けられて前記板ばね２を保護すると共に、組立時に、位置決めや送りなどに使用された後、剥離される、剥離シートを構成する送りシート８とカバーシート９が貼り付けられている。   In addition, an adhesive is applied to the lower surface side of the spacer sheet 7 on one surface excluding the accommodation hole 7a. The spacer sheet 7 is attached to the lower surface side of the contact sheet during transportation or the like to protect the leaf spring 2 and is used for positioning, feeding, etc. during assembly, and then peeled off. The feed sheet 8 and the cover sheet 9 constituting the release sheet are affixed.

図３は、上記スイッチ用接点板１を用いたシート状の押釦スイッチを示している。本発明では、図３に示すように、絶縁シート６に貼着されたスイッチ用接点板１が、中央固定接点１０ａ及び周辺固定接点１０ｂを有する固定接点１０が設けられた回路基板１１上に載置され、絶縁シート６の下面側に貼着されたスペーサシート７の下面側の粘着剤によりコンタクトシートが回路基板１１上に積層されることにより、押釦スイッチが構成されるものとなっている。そして、図示しない電子機器等のキートップが押圧された際には、前記絶縁シート６の上面側に突出された、前記粘着剤付きシート３の前記突部４が、キートップの下面によって押し下げられることにより、前記板ばね２のドーム部２ａが下方に反転し、前記固定接点１０の中央固定接点１０ａと周辺固定接点１０ｂが前記板ばね２を介して導通し、スイッチがオン状態となる。   FIG. 3 shows a sheet-like pushbutton switch using the switch contact plate 1. In the present invention, as shown in FIG. 3, the switch contact plate 1 attached to the insulating sheet 6 is mounted on a circuit board 11 provided with a fixed contact 10 having a central fixed contact 10a and a peripheral fixed contact 10b. The contact sheet is laminated on the circuit board 11 by the adhesive on the lower surface side of the spacer sheet 7 that is placed and adhered to the lower surface side of the insulating sheet 6, thereby forming a push button switch. When a key top of an electronic device or the like (not shown) is pressed, the protrusion 4 of the adhesive-attached sheet 3 protruding to the upper surface side of the insulating sheet 6 is pushed down by the lower surface of the key top. As a result, the dome portion 2a of the leaf spring 2 is inverted downward, the central fixed contact 10a and the peripheral fixed contact 10b of the fixed contact 10 are conducted through the leaf spring 2, and the switch is turned on.

このように、本発明の押釦スイッチは、前記スイッチ用接点板１と、可撓性を有し上下に貫通する複数の前記挿通孔６ａを有すると共に、この挿通孔６ａの上面側に前記突部４が突出されて下面側に前記板ばね２が保持されるように前記スイッチ用接点板１が貼り付けられた前記絶縁シート６と、前記固定接点１０が設けられ該固定接点１０上に前記スイッチ用接点板１が載置された状態で前記絶縁シート６が積層される前記回路基板１１とを備えた構成としたことから、多様なレイアウトに容易に対応できる複数のスイッチ用接点板を備えた押釦スイッチを安価に提供できるものとなっている。   Thus, the pushbutton switch of the present invention has the switch contact plate 1 and the plurality of insertion holes 6a that are flexible and penetrate vertically, and the protrusions on the upper surface side of the insertion holes 6a. 4 is protruded so that the leaf spring 2 is held on the lower surface side. The insulating sheet 6 to which the switch contact plate 1 is attached and the fixed contact 10 are provided, and the switch is placed on the fixed contact 10. Since the circuit board 11 on which the insulating sheet 6 is laminated in a state where the contact plate 1 is placed, a plurality of switch contact plates that can easily cope with various layouts are provided. A push button switch can be provided at low cost.

図４は、上記スイッチ用接点板１を用いた単キーの押釦スイッチを示している。本発明では、図４に示すように、単一のスイッチ用接点板１が、中央固定接点１２ａ及び周辺固定接点１２ｂを有する固定接点１２が収納部１３ａの内底面に配設されたハウジング１３の収納部１３ａに載置され、このハウジング１３の上面側に設けられ、前記収納部１３ａに収納された前記スイッチ用接点板１を前記固定接点１２に対向させて保持する保持手段とから、押釦スイッチが構成されるものとなっている。この場合の保持手段としては、前記ハウジング１３の上面側の周壁１３ｂを前記収納部１３ａ側へ押し潰すことにより前記スイッチ用接点板１の板ばね２の外周縁部を挟持してハウジング１３にスイッチ用接点板１を保持するものとなっている。   FIG. 4 shows a single key push button switch using the switch contact plate 1. In the present invention, as shown in FIG. 4, a single switch contact plate 1 has a fixed contact 12 having a central fixed contact 12a and a peripheral fixed contact 12b. A push button switch is provided from holding means mounted on the storage portion 13a and provided on the upper surface side of the housing 13 and holding the switch contact plate 1 stored in the storage portion 13a so as to face the fixed contact 12. Is configured. As a holding means in this case, the peripheral wall 13b on the upper surface side of the housing 13 is crushed to the storage portion 13a side so that the outer peripheral edge portion of the leaf spring 2 of the switch contact plate 1 is clamped to the housing 13 The contact plate 1 is held.

そして、図示しない電子機器等のキートップが押圧された際には、前記スイッチ用接点板１の上面側に貼着された、前記粘着剤付きシート３の前記突部４が、キートップの下面によって押し下げられることにより、前記板ばね２のドーム部２ａが下方に反転し、前記固定接点１２の中央固定接点１２ａと周辺固定接点１２ｂが前記板ばね２を介して導通し、スイッチがオン状態となる。   When the key top of an electronic device or the like (not shown) is pressed, the protrusion 4 of the adhesive-attached sheet 3 attached to the upper surface side of the switch contact plate 1 is the lower surface of the key top. , The dome portion 2a of the leaf spring 2 is inverted downward, the central fixed contact 12a and the peripheral fixed contact 12b of the fixed contact 12 are conducted through the leaf spring 2, and the switch is turned on. Become.

このように、本発明の押釦スイッチは、前記スイッチ用接点板１と、前記収納部１３ａを有し該収納部１３ａの内底面に前記固定接点１２が配設された前記ハウジング１３と、このハウジング１３の上面側に設けられ、前記収納部１３ａに収納された前記スイッチ用接点板１を前記固定接点１２に対向させて保持する前記保持手段である内側へ押し潰された前記周壁１３ｂ部とを備えた構成としたことから、押圧用のキートップの前記板ばね２の頂部への押圧力伝達を確実に行なうことができる押釦スイッチを容易に提供できるものとなっている。また、前記ハウジング１３の周壁１３ｂを内側へ押し潰すことで前記スイッチ用接点板１を収納部１３ａに保持することができるので、構成が簡易となり、安価化が可能となる。   Thus, the pushbutton switch of the present invention includes the switch contact plate 1, the housing 13 having the storage portion 13a and the fixed contact 12 disposed on the inner bottom surface of the storage portion 13a, and the housing. 13 and the peripheral wall 13b portion that is crushed inward, which is the holding means that holds the switch contact plate 1 stored in the storage portion 13a so as to face the fixed contact 12. Since the structure is provided, it is possible to easily provide a push button switch that can reliably transmit the pressing force to the top of the leaf spring 2 of the key top for pressing. In addition, since the switch contact plate 1 can be held in the storage portion 13a by crushing the peripheral wall 13b of the housing 13 inward, the configuration is simplified and the cost can be reduced.

図５は、上記スイッチ用接点板１を用いた単キーの押釦スイッチの他の実施例を示している。本発明では、図５に示すように、ハウジング１５の収納部１５ａに収納された前記スイッチ用接点板１を固定接点１４に対向させて保持する保持手段を、ハウジング１５の上面側に嵌着される金属フレーム１６で形成し、この金属フレーム１６に前記スイッチ用接点板１の板ばね２の上面側に設けられた前記突部４を突出する挿通孔１６ａを設け、この挿通孔１６ａの下面周縁部と前記板ばね２の上面側に貼着された前記粘着材付きシート３の上面部とを対向させて配置することにより、押釦スイッチが構成されるものとなっている。   FIG. 5 shows another embodiment of a single key pushbutton switch using the switch contact plate 1. In the present invention, as shown in FIG. 5, holding means for holding the switch contact plate 1 stored in the storage portion 15 a of the housing 15 so as to face the fixed contact 14 is fitted on the upper surface side of the housing 15. The metal frame 16 is provided with an insertion hole 16a for projecting the protrusion 4 provided on the upper surface side of the leaf spring 2 of the switch contact plate 1, and a lower peripheral edge of the insertion hole 16a. The push button switch is configured by disposing the portion and the upper surface portion of the sheet 3 with adhesive material attached to the upper surface side of the leaf spring 2 so as to face each other.

そして、同じように、図示しない電子機器等のキートップが押圧された際には、前記スイッチ用接点板１の上面側に貼着された、前記粘着剤付きシート３の前記突部４が、キートップの下面によって押し下げられることにより、前記板ばね２のドーム部２ａが下方に反転し、前記固定接点１４の中央固定接点１４ａと周辺固定接点１４ｂが前記板ばね２を介して導通し、スイッチがオン状態となる。   Similarly, when a key top such as an electronic device (not shown) is pressed, the protrusion 4 of the adhesive-attached sheet 3 attached to the upper surface side of the switch contact plate 1 is By being pushed down by the lower surface of the key top, the dome portion 2a of the leaf spring 2 is inverted downward, and the central fixed contact 14a and the peripheral fixed contact 14b of the fixed contact 14 are conducted through the leaf spring 2, and the switch Is turned on.

このように、保持手段を、前記ハウジング１５の上面側に嵌着される前記金属フレーム１６で形成し、この金属フレーム１６に前記スイッチ用接点板１の突部４を突出する前記挿通孔１６ａを設け、この挿通孔１６ａの下面周縁部と前記板ばね２の上面側に貼着された前記粘着材付きシート３の上面部とを対向させて配置した構成としたことから、押圧用のキートップの前記板ばね２の頂部への押圧力伝達を確実に行なうことができる押釦スイッチを容易に提供できると共に、前記金属フレーム１６と前記スイッチ用接点板１との短絡を防止でき、前記収納部１５ａを覆うことができるので前記固定接点１４や前記スイッチ用接点板１を外部の塵埃などから保護することができるものとなっている。   Thus, the holding means is formed by the metal frame 16 fitted on the upper surface side of the housing 15, and the insertion hole 16 a for projecting the protrusion 4 of the switch contact plate 1 is formed in the metal frame 16. The key top for pressing is provided because the lower peripheral edge portion of the insertion hole 16a and the upper surface portion of the sheet with adhesive material 3 adhered to the upper surface side of the leaf spring 2 are arranged to face each other. The push button switch that can reliably transmit the pressing force to the top of the leaf spring 2 can be easily provided, and a short circuit between the metal frame 16 and the switch contact plate 1 can be prevented, and the storage portion 15a can be prevented. Therefore, the fixed contact 14 and the switch contact plate 1 can be protected from external dust and the like.

本発明の実施例に係るスイッチ用接点板を示すフープ状態の平面図である。It is a top view of the hoop state which shows the contact plate for switches concerning the Example of this invention. 本発明のスイッチ用接点板を用いたコンタクトシートを示す断面図である。It is sectional drawing which shows the contact sheet using the contact plate for switches of this invention. 本発明のスイッチ用接点板を用いたシート状の押釦スイッチ示す断面図である。It is sectional drawing which shows the sheet-like pushbutton switch using the contact plate for switches of this invention. 本発明のスイッチ用接点板を用いた単キーの押釦スイッチを示す断面図である。It is sectional drawing which shows the pushbutton switch of a single key using the contact plate for switches of this invention. 本発明のスイッチ用接点板を用いた単キーの押釦スイッチの他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the pushbutton switch of the single key using the contact plate for switches of this invention. 従来のスイッチ用接点板を用いた押釦スイッチを示す断面図である。It is sectional drawing which shows the pushbutton switch using the conventional contact plate for switches.

符号の説明Explanation of symbols

１：スイッチ用接点板
２：板ばね
２ａ：ドーム部
３：粘着剤付きシート
４：突部
５：フープ材
５ａ：繋ぎ桟
５ｂ：ガイド穴
６：絶縁シート
６ａ：挿通孔
７：スペーサシート
７ａ：収容孔
８：送りシート
９：カバーシート
１０：固定接点
１０ａ：中央固定接点
１０ｂ：周辺固定接点
１１：回路基板
１２：固定接点
１２ａ：中央固定接点
１２ｂ：周辺固定接点
１３：ハウジング
１３ａ：収納部
１３ｂ：周壁（保持手段）
１４：固定接点
１４ａ：中央固定接点
１４ｂ：周辺固定接点
１５：ハウジング
１５ａ：収納部
１６：金属フレーム（保持手段）
１６ａ：挿通孔
1: Switch contact plate 2: Leaf spring 2a: Dome 3: Sheet with adhesive 4: Projection 5: Hoop material 5a: Connecting bar 5b: Guide hole 6: Insulating sheet 6a: Insertion hole 7: Spacer sheet 7a: Housing hole 8: Feed sheet 9: Cover sheet 10: Fixed contact 10a: Center fixed contact 10b: Peripheral fixed contact 11: Circuit board 12: Fixed contact 12a: Center fixed contact 12b: Peripheral fixed contact 13: Housing 13a: Storage part 13b : Perimeter wall (holding means)
14: Fixed contact 14a: Center fixed contact 14b: Peripheral fixed contact 15: Housing 15a: Storage portion 16: Metal frame (holding means)
16a: insertion hole

Claims (5)

金属薄板からなり反転可能なドーム部を有する板ばねと、この板ばねのドーム部の頂部に対応させて前記板ばねの上面側に形成された押圧力伝達用の突部とを備え、前記突部を、該突部よりも大きくて前記板ばねよりも小さい外形を持つ粘着剤付きシートの上面側に形成し、前記粘着剤付きシートの粘着剤により前記突部を前記板ばね上に貼り付けたことを特徴とするスイッチ用接点板。   A leaf spring comprising a thin metal plate and having a reversible dome, and a pressing force transmitting projection formed on the upper surface side of the leaf spring in correspondence with the top of the dome portion of the leaf spring. Forming a portion on the upper surface side of the adhesive sheet having an outer shape larger than the protrusion and smaller than the leaf spring, and sticking the protrusion onto the leaf spring with the adhesive of the adhesive sheet A switch contact plate characterized by that. 前記突部を、固着面から先端側に向かって先細状に形成したことを特徴とする請求項１記載のスイッチ用接点板。   2. The switch contact plate according to claim 1, wherein the protrusion is formed in a tapered shape from the fixing surface toward the tip side. 請求項１、又は２記載のスイッチ用接点板と、可撓性を有し上下に貫通する挿通孔を介して上面側に前記突部が突出され下面側に前記スイッチ用接点板が貼り付けられた絶縁シートと、固定接点が設けられ該固定接点上に前記スイッチ用接点板が載置された状態で前記絶縁シートが積層される回路基板とを備えたことを特徴とする押釦スイッチ。   3. The switch contact plate according to claim 1, and the protrusion protrudes on the upper surface side and the switch contact plate is attached to the lower surface side through a flexible insertion hole penetrating vertically. And a circuit board on which the insulating sheet is laminated in a state where the fixed contact is provided and the switch contact plate is placed on the fixed contact. 請求項１、又は２記載のスイッチ用接点板と、収納部を有しこの収納部の内底面に固定接点が配設されたハウジングと、このハウジングの上面側に設けられ、前記収納部に収納された前記スイッチ用接点板を前記固定接点に対向させて保持する保持手段とを備えたことを特徴とする押釦スイッチ。   The switch contact plate according to claim 1, a housing having a storage portion and having a fixed contact disposed on the inner bottom surface of the storage portion, and provided on the upper surface side of the housing and stored in the storage portion And a holding means for holding the switch contact plate facing the fixed contact. 前記保持手段を、前記ハウジングの上面側に嵌着される金属フレームで形成し、この金属フレームに前記スイッチ用接点板の突部を突出する挿通孔を設け、この挿通孔の下面周縁部と前記粘着材付きシートの上面部とを対向させて配置したことを特徴とする請求項４記載の押釦スイッチ。
The holding means is formed of a metal frame fitted on the upper surface side of the housing, and an insertion hole is provided in the metal frame to project the protrusion of the contact plate for the switch. 5. The pushbutton switch according to claim 4, wherein the pushbutton switch is disposed so as to face an upper surface portion of the sheet with the adhesive material.
JP2004349766A 2004-12-02 2004-12-02 Contact plate for switch and push-button switch using it Withdrawn JP2006164552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004349766A JP2006164552A (en) 2004-12-02 2004-12-02 Contact plate for switch and push-button switch using it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004349766A JP2006164552A (en) 2004-12-02 2004-12-02 Contact plate for switch and push-button switch using it

Publications (1)

Publication Number Publication Date
JP2006164552A true JP2006164552A (en) 2006-06-22

Family

ID=36666337

Family Applications (1)

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Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159346A (en) * 2006-12-22 2008-07-10 Sharp Corp Portable electronic equipment
JP2009123655A (en) * 2007-11-19 2009-06-04 Alps Electric Co Ltd Sheet with movable contact and switch device
KR101053223B1 (en) 2010-12-23 2011-08-01 이현진 Dome sheet for keypad, manufacturing apparatus of the same and manufacturing method of the same
KR101209880B1 (en) * 2012-08-28 2012-12-18 (주)디오코리아 Slim uv tact switch and manufacturing methods thereof
KR101209881B1 (en) * 2012-08-28 2012-12-18 (주)디오코리아 Uv tact switch for smt and manufacturing methods thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159346A (en) * 2006-12-22 2008-07-10 Sharp Corp Portable electronic equipment
JP2009123655A (en) * 2007-11-19 2009-06-04 Alps Electric Co Ltd Sheet with movable contact and switch device
KR101053223B1 (en) 2010-12-23 2011-08-01 이현진 Dome sheet for keypad, manufacturing apparatus of the same and manufacturing method of the same
KR101209880B1 (en) * 2012-08-28 2012-12-18 (주)디오코리아 Slim uv tact switch and manufacturing methods thereof
KR101209881B1 (en) * 2012-08-28 2012-12-18 (주)디오코리아 Uv tact switch for smt and manufacturing methods thereof

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