WO1987001235A1 - Caoutchouc de contact - Google Patents

Caoutchouc de contact Download PDF

Info

Publication number
WO1987001235A1
WO1987001235A1 PCT/JP1986/000419 JP8600419W WO8701235A1 WO 1987001235 A1 WO1987001235 A1 WO 1987001235A1 JP 8600419 W JP8600419 W JP 8600419W WO 8701235 A1 WO8701235 A1 WO 8701235A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubber
oil
conductive
contact
contact rubber
Prior art date
Application number
PCT/JP1986/000419
Other languages
English (en)
Japanese (ja)
Inventor
Yasuhisa Osawa
Yasuko Kimura
Original Assignee
Fuji Rubber Company Limited
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
Priority claimed from JP1985125217U external-priority patent/JPH0138822Y2/ja
Priority claimed from JP61093444A external-priority patent/JPS62252016A/ja
Application filed by Fuji Rubber Company Limited filed Critical Fuji Rubber Company Limited
Priority to KR1019870700310A priority Critical patent/KR900003800B1/ko
Publication of WO1987001235A1 publication Critical patent/WO1987001235A1/fr
Priority to NO871469A priority patent/NO871469D0/no
Priority to DK192087A priority patent/DK192087A/da

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • 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

Definitions

  • the present invention relates to electrodes on a printed circuit board of various electronic devices such as an electronic desk calculator, a digital watch, a card processor, a personal computer, a video disc, a disc player, and a push phone. Also, the present invention relates to a structure of a contact rubber of a switch portion used as an interconnector to an LSI chip. Background fields
  • the conductive part of the contact rubber is made of insulating rubber filled with carbon powder and uniformly dispersed conductive rubber and insulating rubber are vulcanized and bonded, or conductive ink is printed on insulating rubber. Things exist. Disclosure of the invention
  • the contact rubber is operated by pushing the key top part, which is integrally molded on top of the contact rubber, with a finger.
  • fat such as finger oil and an insulating material such as organic acid ester are applied to the surface of the contact rubber. It adheres and penetrates into the contact rubber, and after a long period of time, the oil breaks out into the conductive part, and at the same time, the low-molecular-weight shkirosene contained in the contact rubber.
  • the insulating material such as oil and the like also changes with time, and may be bent out to the conductive part, eventually increasing the contact resistance value of the conductive part, impeding stable input, and eventually leading to disconnection. .
  • the present invention provides:-an oil-resistant portion is formed between the conductive portion and the insulating rubber portion to prevent the insulating material such as oil from the outside and inside of the contact rubber from being bent out to the conductive portion; is there.
  • a method of disposing a resin film between the insulating rubber and the conductive rubber a method of disposing the resin film between the conductive rubber and the conductive rubber, or disposing an oil-resistant rubber in the oil-resistant part can be considered. .
  • a conductive portion 2 is disposed at the center of the inside of the key top portion 1 via an oil-resistant portion 3.
  • Reference numeral 4 denotes an electrode on the print substrate 5.
  • FIG. 2 shows another embodiment, in which a conductive portion 14 and an oil-resistant portion 13 are disposed at the center of the inside of the key-top portion ⁇ , and then a conductive portion 2 is disposed thereafter.
  • a key-top part ⁇ ⁇ of dome-shaped contact rubber is molded with insulating rubber, and a part protruding into the inner space side is formed by graft polymerization of halogen or organic substance to the siloxane acid polymer main chain.
  • Substances derived from silicon-based raw rubber such as mounts (fluorosilicone rubber, NBR, fluoro rubber, acrylic rubber, epichlorohydrin rubber, etc.) 3 Print the oil resistant part, and print conductive ink 2 on the surface It has been done. Note that an oil-resistant layer may be inserted.
  • a conductive rubber ⁇ 4 and a resin film blocking portion ⁇ 3 are first disposed on the inner surface of the key top portion ⁇ , and then the conductive rubber ⁇ 2 is further adhered. It is.
  • the inner conductive rubber ⁇ 4, the resin film 13 and the outer conductive rubber ⁇ 2 are separately and integrally formed, and punched into a fixed shape as electrical contact parts and adhered inside the insulating rubber key top. To produce.

Abstract

Structure d'un caoutchouc de contact utilisé pour différents types d'appareils électroniques, pour empêcher qu'une substance huileuse ayant pénétrée à l'intérieur du caoutchouc de contact depuis l'extérieur, ou qui est contenue dans le même caoutchouc, ne sorte à la surface d'une partie conductrice du caoutchouc et inhibe une augmentation de la valeur de la résistance de contact de la partie conductrice. La partie conductrice (2) est formée sur la partie supérieure d'une touche (1) qui est moulée avec un caoutchouc isolant de manière à présenter une forme de dôme, via une partie étanche à l'huile (3) composée d'une couche d'un caoutchouc étanche à l'huile ou d'un film de résine.
PCT/JP1986/000419 1985-08-16 1986-08-14 Caoutchouc de contact WO1987001235A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019870700310A KR900003800B1 (ko) 1985-08-16 1986-08-14 접점고무
NO871469A NO871469D0 (no) 1985-08-16 1987-04-08 Kontaktorgummi.
DK192087A DK192087A (da) 1985-08-16 1987-04-14 Elastomer kontaktor

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60/125217 1985-08-16
JP1985125217U JPH0138822Y2 (fr) 1985-08-16 1985-08-16
JP61093444A JPS62252016A (ja) 1986-04-24 1986-04-24 接点ゴム導通部の形成法
JP61/93444 1986-04-24

Publications (1)

Publication Number Publication Date
WO1987001235A1 true WO1987001235A1 (fr) 1987-02-26

Family

ID=26434808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1986/000419 WO1987001235A1 (fr) 1985-08-16 1986-08-14 Caoutchouc de contact

Country Status (5)

Country Link
EP (1) EP0233296A4 (fr)
KR (1) KR900003800B1 (fr)
DK (1) DK192087A (fr)
ES (1) ES2001524A6 (fr)
WO (1) WO1987001235A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605163A1 (fr) * 1986-10-01 1988-04-15 Mcb Clavier avec dispositif de lecture
GB2285340A (en) * 1993-12-30 1995-07-05 At & T Corp Elastomeric keypads

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322514A3 (fr) * 1987-12-30 1990-09-12 Hewlett-Packard Company Interrupteur pour clavier
JPH02114776A (ja) * 1988-10-25 1990-04-26 Toshiba Corp Ｘ線診断装置
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
EP1467834A4 (fr) 2001-12-24 2005-04-06 Digimarc Id Systems Llc Elements de securite grave au laser destines a des documents d'identification et procedes de fabrication de ces elements
CA2471457C (fr) 2001-12-24 2011-08-02 Digimarc Id Systems, Llc Documents d'identification comprenant des informations invisibles variables et leurs procedes de production
WO2003088144A2 (fr) 2002-04-09 2003-10-23 Digimarc Id Systems, Llc Techniques de traitement d'images pour imprimer des cartes et des documents d'identification
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
US7804982B2 (en) 2002-11-26 2010-09-28 L-1 Secure Credentialing, Inc. Systems and methods for managing and detecting fraud in image databases used with identification documents
DE602004030434D1 (de) 2003-04-16 2011-01-20 L 1 Secure Credentialing Inc Dreidimensionale datenspeicherung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485375U (fr) * 1977-11-30 1979-06-16
JPS5626824U (fr) * 1979-08-08 1981-03-12
JPS5929932B2 (ja) * 1980-04-26 1984-07-24 アルプス電気株式会社 押釦スイッチの可動接点部材の製造方法
JPS59196517A (ja) * 1983-11-02 1984-11-07 ブラザー工業株式会社 キ−ボ−ド

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472214A (en) * 1947-10-22 1949-06-07 Hurvitz Hyman Pressure responsive electrical resistor
KR900006479Y1 (ko) * 1983-04-20 1990-07-26 부라더 고오교 가부시기가이샤 키보드

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485375U (fr) * 1977-11-30 1979-06-16
JPS5626824U (fr) * 1979-08-08 1981-03-12
JPS5929932B2 (ja) * 1980-04-26 1984-07-24 アルプス電気株式会社 押釦スイッチの可動接点部材の製造方法
JPS59196517A (ja) * 1983-11-02 1984-11-07 ブラザー工業株式会社 キ−ボ−ド

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0233296A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605163A1 (fr) * 1986-10-01 1988-04-15 Mcb Clavier avec dispositif de lecture
EP0266229A1 (fr) * 1986-10-01 1988-05-04 M C B Clavier avec dispositif de lecture
GB2285340A (en) * 1993-12-30 1995-07-05 At & T Corp Elastomeric keypads

Also Published As

Publication number Publication date
EP0233296A1 (fr) 1987-08-26
KR900003800B1 (ko) 1990-05-31
ES2001524A6 (es) 1988-06-01
DK192087D0 (da) 1987-04-14
KR880700442A (ko) 1988-03-15
EP0233296A4 (fr) 1989-06-21
DK192087A (da) 1987-04-14

Similar Documents

Publication Publication Date Title
US6259046B1 (en) Sheet with movable contacts and sheet switch
CN100483588C (zh) 开关一体型壳体和具有该壳体的电子设备
US8186233B2 (en) Pressure sensing device
US7176894B2 (en) Double-sided keyboard for use in an electronic device
US5149923A (en) Backlit tactile keyboard with improved tactile and electrical characteristics
WO1987001235A1 (fr) Caoutchouc de contact
US4532575A (en) Electronic equipment having key input function
US20090152083A1 (en) Keypad assembly for electronic device
US4800243A (en) Contactor rubber
US8098494B2 (en) Electronic device
WO2002029837A1 (fr) Dispositif d"entree multidirectionnel et dispositif electronique utilisant le dispositif d"entree
US7589293B2 (en) Membrane switch circuit and keyswitch using such membrane switch circuit
CN209401524U (zh) 磁电转换式键盘开关组件
JP2007141871A (ja) シートスイッチ及びその操作シート
JPS61284013A (ja) 一体形コンタクトスイツチ
EP0703591A1 (fr) Dispositif d'entrée/sortie avec une lampe et un interrupteur avec protection contre les décharges électrostatiques et la contamination
SE9600085D0 (sv) Skärmning av elektroniska komponenter som plastinbakats direkt på kretskort
JP2006309686A (ja) 薄型キーボードキーキャップ構造
US8104942B2 (en) Light guide sheet and movable contact element using the same
JP2004311342A (ja) 電子機器の入力装置の構造
CN109887783A (zh) 磁电转换式键盘开关组件
JP2002100265A (ja) プッシュスイッチ及びこれを用いた電子機器
JP2008192522A (ja) 可動接点体及びこれを用いたスイッチ
KR970078768A (ko) 화학적으로 그래프트된 전기 장치
WO2007011807A2 (fr) Commutateur a membrane elastomere

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): DK KR NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1986904938

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1986904938

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1986904938

Country of ref document: EP