JPS6333246B2 - - Google Patents
Info
- Publication number
- JPS6333246B2 JPS6333246B2 JP54126350A JP12635079A JPS6333246B2 JP S6333246 B2 JPS6333246 B2 JP S6333246B2 JP 54126350 A JP54126350 A JP 54126350A JP 12635079 A JP12635079 A JP 12635079A JP S6333246 B2 JPS6333246 B2 JP S6333246B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- conductive rubber
- rubber
- fiber board
- conductive
- 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.)
- Expired
Links
- 229920001971 elastomer Polymers 0.000 claims description 48
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 33
- 239000004917 carbon fiber Substances 0.000 claims description 33
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000004636 vulcanized rubber Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 2
- 150000001555 benzenes Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明のキーボードスイツチ装置の製造方法及
び該製造方法のためのプレス装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing a keyboard switch device and a press device for the method.
（従来の技術）
キーボードスイツチ装置（所謂コンタクトラバ
ーのスイツチ装置）は、室内電話用スイツチ、小
型電算機、コンピユーターの端末のユニツトキ
ー、テレビのチユーナー用スイツチ、オーデイオ
用のコントロールスイツチ、各種家庭電気製品の
ためのスイツチ、自動販売機のスイツチ等に特に
好適のものであつて、従来、例えば実開昭53−
157871号に開示されたスイツチ等が考案されてい
た。(Prior Art) Keyboard switch devices (so-called contact rubber switch devices) are used for indoor telephone switches, small computers, unit keys of computer terminals, television tuner switches, audio control switches, and various home appliances. It is particularly suitable for switches for cars, switches for vending machines, and the like.
The switch disclosed in No. 157871 was devised.
（発明が解決しようとする問題点）
従来の製造方法は、導電性のカーボン被膜を非
導電ゴム部の球面状接触面に印刷により、又はス
プレー法かインサート法により形成させると云う
程度のものであつて、製品は耐久性に乏しく信頼
性に欠けると云う問題点があつた。(Problems to be Solved by the Invention) Conventional manufacturing methods have been limited to forming a conductive carbon film on the spherical contact surface of the non-conductive rubber portion by printing, spraying, or inserting. However, the problem was that the product lacked durability and reliability.
本発明は、このような問題点に鑑みて創案され
たもので、簡単な操作で耐久性が高くて而かも高
性能のキーボードスイツチ装置を経済的に得るこ
とを目的とする。 The present invention was devised in view of these problems, and an object of the present invention is to economically obtain a keyboard switch device that is easy to operate, has high durability, and has high performance.
（問題点を解決するための手段）
本発明の要旨とする処は、
スイツチ接点として炭素繊維板上に導電性ゴム
を0.2mm以下の薄さで接着又はコーチングしたも
のを所要形状に切り取つた導電板をシリコンゴム
等の非導電ゴム板を接着させ、80〜150Kg／cm2の
範囲の加圧と120゜〜200℃の温度範囲の加熱を加
えて、炭素繊維を構成する分子のベンゼン核の一
部の炭素と、非導電ゴム板を構成する加硫ゴムの
一部とが結合すると云う化学変化を生ずることに
よる結合を含む接着にて両者を接着せしめること
を特徴とするものである。(Means for Solving the Problems) The gist of the present invention is to provide a switch contact point in which conductive rubber is adhered or coated to a thickness of 0.2 mm or less on a carbon fiber plate and cut into a desired shape. A non-conductive rubber plate such as silicone rubber is attached to the plate, and a pressure in the range of 80 to 150 kg/cm 2 and heating in the temperature range of 120° to 200°C is applied to remove the benzene nuclei of the molecules that make up the carbon fiber. This method is characterized in that a part of the carbon and a part of the vulcanized rubber constituting the non-conductive rubber plate are bonded together by an adhesive that involves a chemical change in which they bond together.
本発明は之により従来のものゝ欠点を除去し、
前記問題点を解決し且つ製造コストの節減を達成
し得たのである。 The present invention thereby eliminates the drawbacks of the conventional one,
The above-mentioned problems were solved and manufacturing costs were reduced.
（実施例）
本発明の実施例を、図面を参照しつつ説明す
る。(Example) An example of the present invention will be described with reference to the drawings.
第１図乃至第３図は本発明の製造方法に依り製
造されたキーボードスイツチ用のコンタクトラバ
ー装置の正面図、裏面図及び同上の一部縦断拡大
図を示したものである。 1 to 3 show a front view, a back view, and a partially enlarged longitudinal sectional view of a contact rubber device for a keyboard switch manufactured by the manufacturing method of the present invention.
同図に於て、１はコンタクトラバー装置であつ
て、スイツチ接点２として炭素繊維板上に導電性
ゴムを0.2mm以下の薄さで接着又はコーチングし
たものを所要形状（図示例では円盤状）に切り取
つたものを用いる。この炭素繊維については「学
術月報Vol.24No.11」の第30〜36頁に都竹卓郎教授
と河村清助手との共著で「炭素繊維−研究の現状
とその将来性−」の論文の中で説明されてある。
本発明で実施したのは、この論文で云う「ポリア
クルルニトリル（PAN）繊維から製造した炭素
繊維」であり、これを板状に成型した炭素繊維板
であつて、その一例として日本カーボン株式社製
の商標Carbolonの所謂「カーボロンペーパー」
を使用した。 In the figure, reference numeral 1 denotes a contact rubber device, in which a switch contact 2 is made by bonding or coating conductive rubber on a carbon fiber board with a thickness of 0.2 mm or less in the desired shape (disk shape in the illustrated example). Use the cut pieces. This carbon fiber is described in the paper ``Carbon fiber - Current status of research and its future potential'' co-authored by Professor Takuro Miyakotake and Assistant Professor Kiyoshi Kawamura on pages 30 to 36 of ``Academic Monthly Report Vol. 24 No. 11''. It is explained in.
What was implemented in the present invention is the "carbon fiber manufactured from polyacrylonitrile (PAN) fiber" referred to in this paper, and a carbon fiber plate made by molding this into a plate shape. The so-called "Carbolon paper" of the trademark Carbolon manufactured by
It was used.
前記のPAN系炭素繊維については、前記論文
によれば
の構造式に示される分子が
に示される脱水反応を伴う芳香族リボン状分子に
形成され、炭素原子を主とした芳香族の一種のポ
リマーとみなされるものである。 Regarding the above-mentioned PAN-based carbon fiber, according to the above-mentioned paper, The molecule shown in the structural formula is It is formed into an aromatic ribbon-like molecule that undergoes the dehydration reaction shown in Figure 1, and is considered to be a type of aromatic polymer mainly composed of carbon atoms.
炭素繊維板は多数の炭素繊維が網目状に重なり
あつたものであつて、本発明方法に依り製造され
るキーボードスイツチ用のコンタクトラバー装置
に於ては、炭素繊維板２がシリコンゴム等の材質
の非導電ゴム板３に加熱されつゝプレスで圧着さ
れる結果として、第３図図示のように炭素繊維板
２と非導電ゴム板３との接合部分８には、非導電
ゴム板３からのゴム（加硫ゴム）が網目状の炭素
繊維相互間の隙間に浸入し、この状態で両者が固
定されるので、両者間の結合には所謂「アンカー
効果」が発生するのであるが、更に、炭素繊維板
２を構成する前述の分子のベンゼン核の一部の炭
素原子が非導電ゴム板３を構成する加硫ゴムの一
部の原子と結合すると云う化学変化を生じて、前
記「アンカー効果」に基く結合との相乗作用で両
者間の密着は充分なものとなつているものであ
る。 The carbon fiber board is made up of a large number of carbon fibers stacked together in a mesh pattern, and in the contact rubber device for a keyboard switch manufactured by the method of the present invention, the carbon fiber board 2 is made of a material such as silicone rubber. As a result of being heated and pressed onto the non-conductive rubber plate 3, as shown in FIG. The rubber (vulcanized rubber) penetrates into the gaps between the mesh-like carbon fibers, and in this state they are fixed, so a so-called "anchor effect" occurs in the bond between them, but furthermore. , a chemical change occurs in which some carbon atoms of the benzene nucleus of the above-mentioned molecules constituting the carbon fiber board 2 combine with some atoms of the vulcanized rubber constituting the non-conductive rubber board 3, and the above-mentioned "anchor" Due to the synergistic effect with the bond based on the effect, the adhesion between the two is sufficient.
導電性ゴムとしては、登録商標東芝シリコーン
YE3452、又は登録商標信越シリコーンKE3000−
シリーズのもの（以上は固体の導電性ゴム）或
いはトーレシリコンDX38−008（液体の導電性ゴ
ム）を使用する。 The conductive rubber is registered trademark Toshiba Silicone.
YE3452 or registered trademark Shin-Etsu Silicone KE3000−
Series (the above are solid conductive rubber) or Toray Silicone DX38-008 (liquid conductive rubber) is used.
固体の導電性ゴムを使用するときには、これを
0.2mm以下（好ましくは0.1〜0.15mm程度）の薄膜
にプレス成型し「半加硫」し炭素繊維板上に接着
するのである。この「半加硫」に於ては所要の加
硫材を加えて、１〜２分程度、170゜〜180゜の温度
に加熱するものである。 When using solid conductive rubber, this
It is press-molded into a thin film of 0.2 mm or less (preferably about 0.1 to 0.15 mm), "semi-vulcanized" and adhered to a carbon fiber board. In this "semi-vulcanization", the required vulcanizing material is added and heated to a temperature of 170° to 180° for about 1 to 2 minutes.
液体の導電性ゴム（トーレシリコーンDX38−
008）を使用するときには、触媒（登録商標トー
レシリコーンDX38−019）を加えて炭素繊維板
の片面に塗布し恒温槽（150℃〜200℃）に５〜10
分入れて半加硫し導電性ゴムを0.2mm以下の薄さ
で炭素繊維板上にコーチングするものである。こ
のようにするときは、導電性ゴムは、炭素繊維板
を構成する繊維と繊維との間に迄食い込み、実際
には炭素繊維板の裏面に迄浸透することになり、
このようにして形成された導電板１８に対するシ
リコンゴム等の非導電ゴム板３の接着のためのプ
レス成型に依る両者間の密着は更に強固となると
共に、導電性ゴムと炭素繊維板との接着も甚だ堅
牢であり、耐久性が著しく大きいものが得られる
と云う利点がある。 Liquid conductive rubber (Toray Silicone DX38−
008), add a catalyst (registered trademark Toray Silicone DX38-019), apply it to one side of the carbon fiber board, and heat it in a constant temperature bath (150℃ to 200℃) for 5 to 10 minutes.
The process involves semi-vulcanizing the conductive rubber and coating it on a carbon fiber board with a thickness of 0.2 mm or less. When doing this, the conductive rubber will penetrate between the fibers that make up the carbon fiber board, and will actually penetrate to the back side of the carbon fiber board.
Press molding for adhering the non-conductive rubber plate 3, such as silicone rubber, to the conductive plate 18 formed in this way further strengthens the adhesion between the two, and also improves the adhesion between the conductive rubber and the carbon fiber plate. It also has the advantage of being extremely robust and extremely durable.
本発明に係るスイツチ接点として炭素繊維板上
に0.2mm以下の薄さで導電性ゴム２０を接着又は
コーチングしたものを用いたキーボードスイツチ
装置の製造方法は、炭素繊維板上に導電性ゴム２
０を0.2mm以下の薄さで接着又はコーチングした
ものを所要形状に切り取つた導電板１８中の炭素
繊維部分に対するシリコンゴム等の非導電ゴム板
３のキーボードスイツチ用へのプレス成型に於て
180〜150Kg／cm2の加圧と120〜200℃の温度の加熱
を加えることゝ両者の接合部分８に於けるアンカ
ー効果との相乗効果で密着せしめるものである。 The method of manufacturing a keyboard switch device using a carbon fiber board with a conductive rubber 20 adhered or coated with a thickness of 0.2 mm or less as a switch contact according to the present invention is as follows.
In press molding a non-conductive rubber plate 3 such as silicone rubber for a keyboard switch onto the carbon fiber part of the conductive plate 18 which is made by adhering or coating 0.0 to a thickness of 0.2 mm or less and cutting it into the desired shape.
By applying a pressure of 180 to 150 kg/cm 2 and heating to a temperature of 120 to 200° C., the synergistic effect of the anchoring effect at the joint portion 8 of the two achieves close contact.
前記の80〜150Kg／cm2の加圧と120〜200℃の温
度の加熱は、前記炭素繊維板２を構成する分子の
ベンゼン核の一部の炭素原子を前記非導電ゴム板
を構成する加硫ゴムの分子の一部と結合せしめる
化学変化を生成せしめるに充分な加圧と加熱とで
ある。この加圧が、80Kg／cm2以下では加圧不充分
であり、また150Kg／cm2以上では製品に悪影響を
及ぼすことになる。又、加熱温度が120℃以下で
は加熱不充分であり、また、200℃以下では製品
に悪影響がある。実用上は165゜〜180℃の範囲に
するのが最も良い。なお、加圧加熱所要時間は、
シリコンゴムの場合、３〜12分が良い。更に、前
記所要形状の炭素繊維板２と非導電ゴム板３との
プレス密着に当り、該プレスの周囲の空気の湿度
が40度以上であるのが良い。もしもプレスの周囲
の空気が40度（相対湿度）以下に乾燥していると
きにはプレス直前に炭素繊維板２に少量の水分を
与えるのが良い。 The above-mentioned pressurization of 80 to 150 kg/cm 2 and heating at a temperature of 120 to 200°C convert some carbon atoms of the benzene nuclei of the molecules forming the carbon fiber board 2 into non-conductive rubber plates. Sufficient pressure and heat is applied to create a chemical change that causes it to bond with some of the molecules of the sulfur rubber. If this pressurization is less than 80 Kg/cm 2 , it is insufficient, and if it is more than 150 Kg/cm 2 , it will have an adverse effect on the product. Furthermore, if the heating temperature is below 120°C, heating is insufficient, and if it is below 200°C, the product will be adversely affected. Practically speaking, it is best to keep the temperature within the range of 165° to 180°C. The time required for pressure heating is as follows:
In the case of silicone rubber, 3 to 12 minutes is good. Further, when pressing the carbon fiber plate 2 of the required shape and the non-conductive rubber plate 3 into close contact with each other by pressing, it is preferable that the humidity of the air around the press is 40 degrees or higher. If the air around the press is dry below 40 degrees (relative humidity), it is best to add a small amount of moisture to the carbon fiber board 2 immediately before pressing.
本発明方法に依り製造されたキーボードスイツ
チ装置の耐久試験を行つた結果として、5000万回
のON−OFF作動の終了後何らの異常が認められ
なかつたことが確認されている。従来の、例えば
実開昭53−157871号スイツチのものが数十万回程
度のON−OFF作動にしか耐えられないものと比
較するに、実に、約百倍程度の耐久性を有するも
のであり、本発明に係るキーボードスイツチ装置
の製造方法はまことに優れたものある。 As a result of durability testing of a keyboard switch device manufactured by the method of the present invention, it has been confirmed that no abnormality was observed after 50 million ON-OFF operations. Compared to conventional switches such as Utility Model No. 53-157871, which can only withstand several hundred thousand ON-OFF operations, this switch is about 100 times more durable. The method of manufacturing a keyboard switch device according to the present invention is truly excellent.
第４図は、本発明に係るキーボードスイツチと
してのコンタクトラバー装置の製造のためのプレ
ス装置の要部の実施例を示したものであつて、前
記所要形状の炭素繊維板２の導電性ゴムでコーチ
ングされて成る導電板１８を載置する所要形状の
底部のあるコツプ状部４があり、該コツプ状部４
の外周壁５が前記非導電ゴム板３をキーボードス
イツチへ成型するための所要形状を為すようにし
た構成の下型１０と、該下型１０に対応する上型
との上下両型９，１０の少くとも一方に前記120
〜200℃の温度を得るための加熱装置（図示例で
は電熱盤６，７）を配設せしめたものである。第
４図図示のように、前記下型１０のコツプ状部４
の外周壁５が略々截頭円錐形の部分１１を有し、
之に対し上型９の対応個所は断面円弧状１２のも
のであるようにしたのは、これにより製造したキ
ーボードスイツチのコンタクトラバー装置１のス
イツチ用としての性能の向上のためである。第１
図に於て、各スイツチ接点１９収容の凹部１５，
１５…間には左右方向と前後方向とに夫々浅い条
溝１３，１４があるが、これは上型にこれに対応
する直線上突起を突設しておくのである。これも
スイツチ用としての性能の向上のためのものであ
る。 FIG. 4 shows an embodiment of the main parts of a press device for manufacturing a contact rubber device as a keyboard switch according to the present invention, in which the conductive rubber of the carbon fiber board 2 having the desired shape is shown. There is a tip 4 with a bottom of a desired shape on which a coated conductive plate 18 is placed;
A lower mold 10 having an outer circumferential wall 5 having a required shape for molding the non-conductive rubber plate 3 into a keyboard switch, and an upper mold corresponding to the lower mold 10, both upper and lower molds 9, 10. at least one of said 120
A heating device (electric heating plates 6 and 7 in the illustrated example) is provided to obtain a temperature of ~200°C. As shown in FIG.
the outer peripheral wall 5 of has a generally frustoconical portion 11;
On the other hand, the corresponding portion of the upper mold 9 has an arcuate cross section 12 in order to improve the performance of the contact rubber device 1 of the keyboard switch manufactured thereby. 1st
In the figure, a recess 15 for accommodating each switch contact 19,
15... There are shallow grooves 13 and 14 in the left-right direction and the front-back direction, respectively, which are formed by providing corresponding straight projections protruding from the upper die. This is also to improve performance for switches.
（発明の効果）
本発明は前述のようにしてスイツチ接点として
炭素繊維板２上に導電性ゴム２０を0.2mm以下の
薄さで接着又はコーチングしたものを所要形状に
切り取つた導電板１８をシリコンゴム等の非導電
ゴム板に接着させるプレス成型に於て、80〜150
Kg／cm2の範囲の加圧と120゜〜200℃の温度範囲の
加熱を加えて、炭素繊維板を構成する分子のベン
ゼン核の一部の炭素と、非導電ゴム板を構成する
加硫ゴムの一部とが結合すると云う化学変化を生
ずることによる結合を含む接着にて両者を密着せ
しめるようにしたことにより、炭素繊維板２と非
導電ゴム板３との接着が良く、而して前記の温度
範囲の加熱と前記の圧力範囲の加圧は炭素繊維板
２とその上面に接着又はコーチングした0.2mm以
下の導電性ゴムとの接着には悪影響を与えないも
のであつて、本発明方法により、極めて耐久性が
高く而かも性能の良いものを経済的に得たのであ
る。(Effects of the Invention) The present invention uses a conductive plate 18, which is made by adhering or coating a conductive rubber 20 with a thickness of 0.2 mm or less on a carbon fiber plate 2 and cutting it into a desired shape, as a switch contact as described above. 80 to 150 in press molding to adhere to a non-conductive rubber plate such as rubber.
By applying pressure in the range of Kg/cm 2 and heating in the temperature range of 120° to 200°C, some of the carbon in the benzene nucleus of the molecules that make up the carbon fiber board and the vulcanization that makes up the non-conductive rubber board are removed. Since the carbon fiber board 2 and the non-conductive rubber board 3 are brought into close contact with each other by adhesion, which includes a bond caused by a chemical change in which a part of the rubber is bonded, the adhesion between the carbon fiber board 2 and the non-conductive rubber board 3 is good. Heating in the above temperature range and pressurizing in the above pressure range do not adversely affect the adhesion between the carbon fiber board 2 and the conductive rubber of 0.2 mm or less adhered or coated on the upper surface thereof, and the present invention By using this method, we were able to economically obtain a product that was extremely durable and had good performance.
図面は本発明に係るキーボードスイツチ装置の
製造方法の実施例に関するものであつて、第１図
はスイツチ装置（キーボードスイツチに用いるコ
ンタクトラバー装置）の平面図、第２図は同上裏
面図、第３図は同上の一部の拡大断面図、第４図
は本発明の製造方法のためのプレス装置の要部
（上型と下型）の一部切欠した拡大断面図、第５
図は第３図に於ける導電板の断面拡大図、であ
る。
１はコンタクトラバー装置、２は炭素繊維板、
３は非導電ゴム板、４はコツプ状部、５は外周
壁、６，７は電熱盤、８は接合部分、９は上型、
１０は下型、１１は截頭円錐部、１２は断面円弧
状部、１３，１４は条溝、１５は凹部、１８は導
電板、１９はスイツチ接点、２０は導電性ゴム。
The drawings relate to an embodiment of the method for manufacturing a keyboard switch device according to the present invention, in which FIG. 1 is a plan view of the switch device (contact rubber device used in the keyboard switch), FIG. 2 is a back view of the same, and FIG. The figure is an enlarged cross-sectional view of a part of the same as above, FIG.
The figure is an enlarged cross-sectional view of the conductive plate in FIG. 3. 1 is a contact rubber device, 2 is a carbon fiber board,
3 is a non-conductive rubber plate, 4 is a pot-shaped part, 5 is an outer peripheral wall, 6 and 7 are electric heating plates, 8 is a joint part, 9 is an upper mold,
10 is a lower mold, 11 is a truncated conical part, 12 is an arcuate section, 13 and 14 are grooves, 15 is a recessed part, 18 is a conductive plate, 19 is a switch contact, and 20 is a conductive rubber.
Claims (1)
ムを0.2mm以下の薄さで接着又はコーチングした
ものを所要形状に切り取つた導電板をシリコンゴ
ム等の非導電ゴム板に接着させ、80〜150Kg／cm2
の範囲の加圧と120℃〜200℃の温度範囲の加熱を
加えて、炭素繊維板を構成する分子のベンゼン核
の一部の炭素と、非導電ゴム板を構成する加硫ゴ
ムの一部とが結合すると云う化学変化を生ずるこ
とによる結合を含む接着にて両者を密着せしめる
ことを特徴とするキーボードスイツチ装置の製造
方法。 ２ 特許請求の範囲第１項に記載のキーボードス
イツチ装置の製造方法であつて、前記導電性ゴム
として液体の導電性ゴムを使用し前記炭素繊維板
の片面に塗布し、触媒の存在下で所要時間加熱し
て半加硫し導電性ゴムが0.2mm以下の薄さで炭素
繊維板上にコーチングされるようにするものであ
ることを特徴とするキーボードスイツチ装置の製
造方法。[Scope of Claims] 1. As a switch contact, conductive rubber is adhered or coated to a thickness of 0.2 mm or less on a carbon fiber board, cut into a desired shape, and the conductive plate is adhered to a non-conductive rubber board such as silicone rubber. 80-150Kg/ cm2
By applying pressure in the range of 120℃ to 200℃ and heating in the temperature range of 120℃ to 200℃, some of the carbon in the benzene nucleus of the molecules that make up the carbon fiber board and some of the vulcanized rubber that makes up the non-conductive rubber board are removed. 1. A method for manufacturing a keyboard switch device, characterized in that the two are brought into close contact with each other by adhesion, including bonding caused by a chemical change in which the two are bonded together. 2. A method for manufacturing a keyboard switch device according to claim 1, wherein a liquid conductive rubber is used as the conductive rubber, and is coated on one side of the carbon fiber board, and the required amount is applied in the presence of a catalyst. A method for manufacturing a keyboard switch device, characterized in that conductive rubber is coated on a carbon fiber board with a thickness of 0.2 mm or less by semi-vulcanization by heating for a period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12635079A JPS5652821A (en) | 1979-10-02 | 1979-10-02 | Switch unit and method of manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12635079A JPS5652821A (en) | 1979-10-02 | 1979-10-02 | Switch unit and method of manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5652821A JPS5652821A (en) | 1981-05-12 |
| JPS6333246B2 true JPS6333246B2 (en) | 1988-07-05 |
Family
ID=14932993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12635079A Granted JPS5652821A (en) | 1979-10-02 | 1979-10-02 | Switch unit and method of manufacturing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5652821A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH083557Y2 (en) * | 1992-11-12 | 1996-01-31 | ナショナル住宅産業株式会社 | Eaves structure |
| WO2006119657A1 (en) * | 2005-05-06 | 2006-11-16 | Abatek International Ag | Electrically conducting contact and method for production thereof |
-
1979
- 1979-10-02 JP JP12635079A patent/JPS5652821A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5652821A (en) | 1981-05-12 |
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