JPH046049B2 - - Google Patents

Info

Publication number
JPH046049B2
JPH046049B2 JP61093444A JP9344486A JPH046049B2 JP H046049 B2 JPH046049 B2 JP H046049B2 JP 61093444 A JP61093444 A JP 61093444A JP 9344486 A JP9344486 A JP 9344486A JP H046049 B2 JPH046049 B2 JP H046049B2
Authority
JP
Japan
Prior art keywords
oil
conductive
rubber
key top
contact 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
Application number
JP61093444A
Other languages
English (en)
Other versions
JPS62252016A (ja
Inventor
Yasuhisa Oosawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Gomme Kk
Original Assignee
Fuji Gomme Kk
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Gomme Kk filed Critical Fuji Gomme Kk
Priority to JP61093444A priority Critical patent/JPS62252016A/ja
Priority to EP19860904938 priority patent/EP0233296A4/en
Priority to US07/043,560 priority patent/US4800243A/en
Priority to ES868601136A priority patent/ES2001524A6/es
Priority to KR1019870700310A priority patent/KR900003800B1/ko
Priority to PCT/JP1986/000419 priority patent/WO1987001235A1/ja
Priority to NO871469A priority patent/NO871469D0/no
Priority to DK192087A priority patent/DK192087D0/da
Publication of JPS62252016A publication Critical patent/JPS62252016A/ja
Publication of JPH046049B2 publication Critical patent/JPH046049B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/785—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/002—Movable contacts fixed to operating part

Landscapes

  • Push-Button Switches (AREA)
  • Manufacture Of Switches (AREA)
  • Contacts (AREA)

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は電子機器のスイツチ部に使用する接点
ゴムにおいて、キートツプを一体成形するタイプ
の導通部形成方法に関するものである。
［従来の技術］ 従来のキートツプ一体型の接点ゴムの導通部は
絶縁ゴム部に単に導電ゴム部を加硫接着するか、
あるいは導電インクのみを印刷することにより作
製されている。
［発明が解決しようとする問題点］ キートツプ一体型の接点ゴムはキートツプ部を
指でプツシユしてキー操作するが、この時指の油
等の物質がキー面に付着する。その後この油は接
点ゴム内に吸着され、長期間使用することによ
り、この吸着された油が導通部にまで浸透し、つ
いには導通部の抵抗を変化させてしまつたり、あ
るいは不導通にしてしまつたりすることがある。
［問題を解決するための手段］ そこで本発明は、導通部と絶縁ゴム部との間に
耐油性層を形成することにより、油等の吸着物が
導通部へ浸透するのを遮断する構造としたもので
ある。
［実施例］ まず導通部のないドーム状の接点ゴムのキート
ツプ部１を絶縁ゴムにて成形し、その裏面中央の
導通部となる箇所にまず耐油性インク２、例えば
シリコン系の生ゴムからの誘導物（シロキ酸ポリ
マー主鎖にハロゲンや有機物をグラフト重合させ
た化合物等）を印刷し、さらにその耐油層の表面
に導電インク３を印刷する。
［発明の効果］ このような方法で形成される導電部を、キート
ツプ一体型の接点ゴムに用いることにより、キー
トツプ絶縁ゴム部からの付着物の浸透は耐油性層
で完全に遮断され、それ以上さらに浸透するおそ
れがなくなり、また厳しい外部条件、例えば油の
飛散する工場内、調理場所等においても機器の導
通部を守ることができるので接点ゴムが安定した
ものとして用いられ信頼性が向上し用途が拡大す
る。
【図面の簡単な説明】
図は接点ゴムの断面を示す。 １……キートツプ部絶縁ゴム、２……耐油性
層、３……導電インク。

Claims (1)

    【特許請求の範囲】
  1. １ 接点ゴムキートツプ部を絶縁ゴムにて成形
    し、この絶縁部の導通部となる部位に耐油性イン
    クを印刷して耐油層を形成し、さらにこの耐油層
    の表面に導通インクを印刷する工程からなる接点
    ゴム導通部の形成法。
JP61093444A 1985-08-16 1986-04-24 接点ゴム導通部の形成法 Granted JPS62252016A (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP61093444A JPS62252016A (ja) 1986-04-24 1986-04-24 接点ゴム導通部の形成法
EP19860904938 EP0233296A4 (en) 1985-08-16 1986-08-14 CONTACT RUBBER.
US07/043,560 US4800243A (en) 1986-04-24 1986-08-14 Contactor rubber
ES868601136A ES2001524A6 (es) 1985-08-16 1986-08-14 Caucho para contactores
KR1019870700310A KR900003800B1 (ko) 1985-08-16 1986-08-14 접점고무
PCT/JP1986/000419 WO1987001235A1 (fr) 1985-08-16 1986-08-14 Caoutchouc de contact
NO871469A NO871469D0 (no) 1985-08-16 1987-04-08 Kontaktorgummi.
DK192087A DK192087D0 (da) 1985-08-16 1987-04-14 Elastomer kontaktor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61093444A JPS62252016A (ja) 1986-04-24 1986-04-24 接点ゴム導通部の形成法

Publications (2)

Publication Number Publication Date
JPS62252016A JPS62252016A (ja) 1987-11-02
JPH046049B2 true JPH046049B2 (ja) 1992-02-04

Family

ID=14082494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61093444A Granted JPS62252016A (ja) 1985-08-16 1986-04-24 接点ゴム導通部の形成法

Country Status (2)

Country Link
US (1) US4800243A (ja)
JP (1) JPS62252016A (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270507A (en) * 1989-01-19 1993-12-14 Shin-Etsu Polymer Co., Ltd. Push button switch and method for manufacturing same
JP2561331Y2 (ja) * 1991-04-30 1998-01-28 信越ポリマー株式会社 符号照光式押釦スイッチ用カバー部材
US5163765A (en) * 1992-03-04 1992-11-17 Apple Computer, Inc. Collapsible keyboard
CA2197283A1 (en) * 1996-02-13 1997-08-14 Mikio Horiuchi Card and information recording card and method of using the same
JP4442963B2 (ja) * 1999-10-26 2010-03-31 パナソニック株式会社 ボタンスイッチ
DE10062380A1 (de) * 2000-12-14 2002-07-04 Siemens Ag Tastaturanordnung für eine elektronische Vorrichtung und elektronische Vorrichtung
US7115825B2 (en) * 2001-02-15 2006-10-03 Integral Technologies, Inc. Low cost key actuators and other switching device actuators manufactured from conductive loaded resin-based materials
GB0703172D0 (en) * 2007-02-19 2007-03-28 Pa Knowledge Ltd Printed circuit boards
GB2462823A (en) * 2008-08-18 2010-02-24 Crombie 123 Ltd A switch
KR101591619B1 (ko) 2008-08-18 2016-02-04 셈블란트 리미티드 할로-하이드로카본 폴리머 코팅
US8995146B2 (en) 2010-02-23 2015-03-31 Semblant Limited Electrical assembly and method
GB201621177D0 (en) 2016-12-13 2017-01-25 Semblant Ltd Protective coating

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122888A (en) * 1978-03-17 1979-09-22 Sakura Kk Keyswitch
KR900006479Y1 (ko) * 1983-04-20 1990-07-26 부라더 고오교 가부시기가이샤 키보드
FR2576449A1 (fr) * 1985-01-18 1986-07-25 Hutchinson Clavier a elements de commande integres avec predetermination de la loi de mise sous pression de leur element electroconducteur, et procede de fabrication de ce clavier

Also Published As

Publication number Publication date
JPS62252016A (ja) 1987-11-02
US4800243A (en) 1989-01-24

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