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GB1493042A - Method of manufacturing a keyboard and keyboard obtained thereby - Google Patents

Method of manufacturing a keyboard and keyboard obtained thereby

Info

Publication number
GB1493042A
GB1493042A GB590/75A GB59075A GB1493042A GB 1493042 A GB1493042 A GB 1493042A GB 590/75 A GB590/75 A GB 590/75A GB 59075 A GB59075 A GB 59075A GB 1493042 A GB1493042 A GB 1493042A
Authority
GB
United Kingdom
Prior art keywords
paint
board
rubber
keyboard
jan
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
GB590/75A
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 Polymer Industries Co Ltd
Original Assignee
Fuji Polymer Industries Co Ltd
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 Polymer Industries Co Ltd filed Critical Fuji Polymer Industries Co Ltd
Publication of GB1493042A publication Critical patent/GB1493042A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • 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
    • H01H2229/00—Manufacturing
    • H01H2229/002—Screen printing
    • H01H2229/004—Conductive ink
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/006—Pad transfer printing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/056—Laminating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/058—Curing or vulcanising of rubbers

Landscapes

  • Push-Button Switches (AREA)
  • Manufacture Of Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

1493042 Switch contacts; printed circuits FUJI POLYMER INDUSTRIES CO Ltd 7 Jan 1975 [11 Jan 1974] 590/75 Heading H1N and H1R A resiliently flexible board-like component for use in keyboard switch assemblies comprises a preformed insulating rubber board 4 coated with conductive paint at specific locations (2A, Figs. 1 and 5, not shown) to form contacts thereon, the method of manufacture comprising spreading a thin layer 2 of electrically conductive paint on a flat plate 1, surmounting this with a mask 3 and the rubber board 4, applying pressure means to the board 4 so that those portions 4A which are not masked are forced into contact with the paint 2, removing the pressure and allowing the paint to dry. The pressure means is preferably a roller (6, Fig. 4, not shown), the board is preferably cured silicone rubber, and the paint comprises conductive particles in a commerical paint or in a rubber (preferably a curable silicone rubber) dispersion in water or a solvent. The roller (6) may be stationary and the component 4 in the form of a moving belt which is later cut into segments.
GB590/75A 1974-01-11 1975-01-07 Method of manufacturing a keyboard and keyboard obtained thereby Expired GB1493042A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP603874A JPS5647651B2 (en) 1974-01-11 1974-01-11

Publications (1)

Publication Number Publication Date
GB1493042A true GB1493042A (en) 1977-11-23

Family

ID=11627463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB590/75A Expired GB1493042A (en) 1974-01-11 1975-01-07 Method of manufacturing a keyboard and keyboard obtained thereby

Country Status (10)

Country Link
JP (1) JPS5647651B2 (en)
BE (1) BE824289A (en)
CA (1) CA1037875A (en)
CH (1) CH596654A5 (en)
DE (1) DE2500701C2 (en)
FR (1) FR2257951B1 (en)
GB (1) GB1493042A (en)
IT (1) IT1048801B (en)
NL (1) NL157740B (en)
SE (1) SE404559B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112519086A (en) * 2020-10-20 2021-03-19 北京中石伟业科技无锡有限公司 Double-color conductive silica gel product forming process

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5486371U (en) * 1977-11-30 1979-06-19
DE3034585C2 (en) * 1980-09-13 1982-11-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Pushbutton arrangement in an electrical communications engineering device
DE3041186C2 (en) * 1980-09-13 1984-03-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Pushbutton arrangement in an electrical communications engineering device
DE3214454C2 (en) * 1982-04-20 1984-08-23 Rudolf Schadow Gmbh, 1000 Berlin Electrical switch in foil construction
US4858174A (en) * 1983-01-03 1989-08-15 Pitney Bowes Inc. Electronic postage meter control system employing a membrane switch mechanism
US4620075A (en) * 1983-06-10 1986-10-28 Price Pfister, Inc. Unitized control panel
DE3415672A1 (en) * 1984-04-27 1985-11-07 Wilde Membran Impuls Tech Multiple switch
DE3434107A1 (en) * 1984-09-17 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Switching mat for keyboards
DE3440979A1 (en) * 1984-11-09 1986-05-15 Marquardt Gmbh, 7201 Rietheim-Weilheim ELECTRICAL COMPONENT LIKE KEYBOARD OR THE LIKE.
JPS61245417A (en) * 1985-04-24 1986-10-31 富士ポリマテック株式会社 Formation of contact rubber conducting section
DE3643124A1 (en) * 1986-12-17 1988-07-07 Ruf Kg Wilhelm Keyboard
DE3714316A1 (en) * 1987-04-29 1988-11-10 Siemens Ag CONTACT MAT FOR KEYS AND KEYBOARDS
JPH0298930U (en) * 1989-01-25 1990-08-07

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1298089A (en) * 1969-02-24 1972-11-29 William Barber Sudduth Electric switch made of conducting elastomer
JPS5129921Y2 (en) * 1971-03-24 1976-07-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112519086A (en) * 2020-10-20 2021-03-19 北京中石伟业科技无锡有限公司 Double-color conductive silica gel product forming process

Also Published As

Publication number Publication date
JPS5647651B2 (en) 1981-11-11
NL157740B (en) 1978-08-15
FR2257951A1 (en) 1975-08-08
SE7500165L (en) 1975-07-14
CA1037875A (en) 1978-09-05
BE824289A (en) 1975-07-10
DE2500701C2 (en) 1985-10-03
NL7500295A (en) 1975-07-15
DE2500701A1 (en) 1975-07-17
JPS50101868A (en) 1975-08-12
IT1048801B (en) 1980-12-20
SE404559B (en) 1978-10-09
CH596654A5 (en) 1978-03-15
FR2257951B1 (en) 1977-07-08
AU7692774A (en) 1976-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee