JPH0138822Y2 - - Google Patents
Info
- Publication number
- JPH0138822Y2 JPH0138822Y2 JP1985125217U JP12521785U JPH0138822Y2 JP H0138822 Y2 JPH0138822 Y2 JP H0138822Y2 JP 1985125217 U JP1985125217 U JP 1985125217U JP 12521785 U JP12521785 U JP 12521785U JP H0138822 Y2 JPH0138822 Y2 JP H0138822Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- contact
- conductive
- electrical contact
- conductive rubber
- 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
- -1 organic acid esters Chemical class 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 4
- 239000003925 fat Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Contacts (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、各種エレクトロニクス機器のスイツ
チに使用される接点ゴムに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to contact rubber used in switches of various electronic devices.
従来の接点ゴムに用いられる導電部としては、
絶縁性ゴム中にカーボン粉末を充填し、均一分散
させた導電ゴムを加硫接着させるもの、あるいは
導電インクの印刷を行うことにより接点ゴムを形
成しているもの等がある。
The conductive parts used in conventional contact rubber are:
There are those in which carbon powder is filled in insulating rubber and uniformly dispersed conductive rubber is vulcanized and bonded, or contact rubber is formed by printing conductive ink.
従来の導電ゴムは、導電部を含む接点ゴム全体
がゴムで成形されている為、キーの打鍵に際し、
指表面から接点ゴム表面へ脂肪及び有機酸エステ
ル等の絶縁性物質が付着し、それがゴム内部に浸
透し、電気接点部である導電ゴム部に析出してし
まう欠点を有していた。
With conventional conductive rubber, the entire contact rubber, including the conductive part, is made of rubber, so when pressing a key,
Insulating substances such as fats and organic acid esters adhere from the finger surface to the contact rubber surface, penetrate into the rubber, and are deposited on the conductive rubber part that is the electrical contact part.
また、同様に接点ゴム中に含まれる低分子量シ
ロキサン及びオイル等の絶縁性物質が、経時的な
変化をして導電ゴム部に析出する。 Similarly, insulating substances such as low molecular weight siloxane and oil contained in the contact rubber change over time and precipitate on the conductive rubber portion.
そのため入力に際して、導電ゴム部における接
触抵抗値の増大を招き、安定な入力を阻害する恐
れがあつた。 Therefore, during input, the contact resistance value in the conductive rubber portion increases, which may impede stable input.
そこで本考案は、電気接点部である導電ゴムの
内部もしくは電気接点面と反対側に指等の外部か
ら浸透する脂肪、あるいは有機酸エステル、また
は接点ゴム内部に含まれる低分子量シロキサンお
よびオイル等の絶縁性物質が、電気接点面に析出
できないように樹脂フイルム等の遮断層を設ける
ことにより、外部及び内部からの絶縁性物質に対
する遮断を行い、入力において信頼性の高い接点
ゴムを提供せんとするものである。
Therefore, the present invention aims to prevent fats or organic acid esters from penetrating into the inside of the conductive rubber that is the electrical contact or the side opposite to the electrical contact surface from the outside, such as a finger, or low molecular weight siloxane and oil contained inside the contact rubber. By providing a barrier layer such as a resin film to prevent insulating substances from depositing on the electrical contact surface, we provide a contact rubber that is highly reliable for input by blocking insulating substances from the outside and inside. It is something.
第１図から第４図に示す実施例に従つて本考案
を説明する。
The present invention will be explained according to the embodiments shown in FIGS. 1 to 4.
第１図は、導電部の内部中央に遮断層を設けた
場合を示し、PET（ポリエチレンテレフタラー
ト）PBT（ポリプチレンテレフタラート）、PI（ポ
リイミド）、PP（ポリプロピレン）、PC（ポリカー
ボネート）、PA（ポリアミド）、PVA（ポリビニル
アルコール）、PSU（ポリサルフオン）、ポリエー
テルサルフオン、フツ素樹脂などの樹脂フイルム
等の遮断層３が、導電ゴム１の内部中央に一体成
形、もしくは遮断層３の内側の接着剤層２により
表裏面に導電ゴムを貼り合わせたシート状のもの
を示してある。 Figure 1 shows the case where a blocking layer is provided at the center of the conductive part, and is made of PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PI (polyimide), PP (polypropylene), PC (polycarbonate), PA A barrier layer 3 made of a resin film such as (polyamide), PVA (polyvinyl alcohol), PSU (polysulfone), polyethersulfone, or fluororesin is integrally molded in the center of the conductive rubber 1 or inside the barrier layer 3. A sheet-like product is shown in which conductive rubber is bonded to the front and back surfaces using an adhesive layer 2.
第２図は、樹脂フイルムの遮断層３の片面にの
み導電層１を貼り合せたタイプのものを示してあ
る。 FIG. 2 shows a type in which a conductive layer 1 is bonded only to one side of a blocking layer 3 made of a resin film.
第３図に示す接点ゴムの導電部材は、第１図に
示す接点部材のシートを打ち抜き成形により作製
したものを示してあり、第４図のゴム状弾性体４
と加硫接着により一体成形することにより接点ゴ
ムを得ることができる。 The contact rubber conductive member shown in FIG. 3 is produced by punching and molding the sheet of the contact member shown in FIG. 1, and the rubber-like elastic body 4 shown in FIG.
Contact rubber can be obtained by integrally molding with vulcanized adhesive.
このようにして作製された接点ゴムは、キーの
打鍵に際して指表面から接点ゴム表面へ脂肪及び
有機酸エステル等の絶縁性物質が付着し、ゴム内
部に浸透しても樹脂フイルム等の遮断層が接点ゴ
ム外部および内部からの絶縁性物質に対して膨潤
又は溶解が起らず、絶縁性物質の浸透を遮断する
ので、電気接点部である導電ゴム部に絶縁性物質
が析出することがない。
The contact rubber produced in this way has insulating substances such as fats and organic acid esters that adhere from the finger surface to the contact rubber surface when a key is pressed, and even if they penetrate into the rubber, the barrier layer such as a resin film remains. Since the contact rubber does not swell or dissolve with respect to the insulating material from the outside or inside, and the penetration of the insulating material is blocked, the insulating material does not precipitate on the conductive rubber part that is the electrical contact part.
又、同様に接点ゴム中に含まれる低分子量シロ
キサン及びオイル等の絶縁性物質も導電ゴム部に
析出するおそれがなくなる。 Similarly, there is no possibility that insulating substances such as low molecular weight siloxane and oil contained in the contact rubber will be deposited on the conductive rubber portion.
したがつて、入力に際しての接触抵抗値が増大
することなく、信頼性の高い安定した入力の接点
ゴムを供給することができる。 Therefore, it is possible to provide a contact rubber that provides highly reliable and stable input without increasing the contact resistance value during input.
さらに、中央部に遮断層を設けることにより、
導電部の裏表がなくなるため、絶縁部と加硫接着
する場合でも従来の作業工程と同様に簡単に行な
える。 Furthermore, by providing a blocking layer in the center,
Since there are no front and back sides of the conductive part, vulcanization and adhesion to the insulating part can be easily performed in the same way as conventional work processes.
第１図は、本考案になる導電部材の代表的実施
例を示す斜視図である。第２図は、別の実施例を
示す導電部材の断面図である。第３図は、打ち抜
いた導電部材である。第４図は、上記接点部材を
組込んでなる接点ゴム断面図である。
１……導電性ゴム状弾性体、２……接着剤層、
３……遮断層、４……絶縁性ゴム状弾性体。
FIG. 1 is a perspective view showing a typical embodiment of a conductive member according to the present invention. FIG. 2 is a sectional view of a conductive member showing another embodiment. FIG. 3 shows a punched conductive member. FIG. 4 is a sectional view of a contact rubber formed by incorporating the above-mentioned contact member. 1... Conductive rubber-like elastic body, 2... Adhesive layer,
3...Break layer, 4...Insulating rubber-like elastic body.
Claims (1)
気接点面と反対側に、外部から浸透する脂肪、あ
るいは有機酸エステル、または接点ゴム内部に含
まれる低分子量シロキサンおよびオイル等の絶縁
性物質が、電気接点面に析出できないように樹脂
などの遮断層を導電ゴムと一体成形もしくは貼り
合わせて成る接点ゴム。 Insulating substances such as fat or organic acid esters penetrating from the outside, or low molecular weight siloxane and oil contained inside the contact rubber, are present in the center of the conductive rubber that is the electrical contact, or on the opposite side of the electrical contact surface. Contact rubber is made by integrally molding or bonding a barrier layer such as resin with conductive rubber to prevent precipitation on the contact surface.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985125217U JPH0138822Y2 (en) | 1985-08-16 | 1985-08-16 | |
| EP19860904938 EP0233296A4 (en) | 1985-08-16 | 1986-08-14 | Contact rubber. |
| KR1019870700310A KR900003800B1 (en) | 1985-08-16 | 1986-08-14 | Contact rubber |
| ES868601136A ES2001524A6 (en) | 1985-08-16 | 1986-08-14 | Contact rubber. |
| PCT/JP1986/000419 WO1987001235A1 (en) | 1985-08-16 | 1986-08-14 | Contact rubber |
| NO871469A NO871469D0 (en) | 1985-08-16 | 1987-04-08 | KONTAKTORGUMMI. |
| DK192087A DK192087A (en) | 1985-08-16 | 1987-04-14 | ELASTOMES CONTACT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985125217U JPH0138822Y2 (en) | 1985-08-16 | 1985-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6233119U JPS6233119U (en) | 1987-02-27 |
| JPH0138822Y2 true JPH0138822Y2 (en) | 1989-11-20 |
Family
ID=31017927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985125217U Expired JPH0138822Y2 (en) | 1985-08-16 | 1985-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0138822Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569922A (en) * | 1979-07-04 | 1981-01-31 | Brother Ind Ltd | Switch and method of manufacturing same |
| JPS58938U (en) * | 1981-06-24 | 1983-01-06 | 株式会社松田商店 | packing container base |
| JPS6012173U (en) * | 1983-07-01 | 1985-01-26 | 三洋電機株式会社 | Cooling system |
| JPS61284013A (en) * | 1985-06-10 | 1986-12-15 | 松下電器産業株式会社 | One-piece contact switch |
-
1985
- 1985-08-16 JP JP1985125217U patent/JPH0138822Y2/ja not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569922A (en) * | 1979-07-04 | 1981-01-31 | Brother Ind Ltd | Switch and method of manufacturing same |
| JPS58938U (en) * | 1981-06-24 | 1983-01-06 | 株式会社松田商店 | packing container base |
| JPS6012173U (en) * | 1983-07-01 | 1985-01-26 | 三洋電機株式会社 | Cooling system |
| JPS61284013A (en) * | 1985-06-10 | 1986-12-15 | 松下電器産業株式会社 | One-piece contact switch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6233119U (en) | 1987-02-27 |
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