IT1167028B - ELECTRIC MEMBRANE KEYBOARD WITH BUFFER LAYER ON AT LEAST ONE SWITCHING SHEET OR CIRCUIT LAYER - Google Patents

ELECTRIC MEMBRANE KEYBOARD WITH BUFFER LAYER ON AT LEAST ONE SWITCHING SHEET OR CIRCUIT LAYER

Info

Publication number
IT1167028B
IT1167028B IT23924/83A IT2392483A IT1167028B IT 1167028 B IT1167028 B IT 1167028B IT 23924/83 A IT23924/83 A IT 23924/83A IT 2392483 A IT2392483 A IT 2392483A IT 1167028 B IT1167028 B IT 1167028B
Authority
IT
Italy
Prior art keywords
membrane keyboard
layer
switching sheet
buffer layer
electric membrane
Prior art date
Application number
IT23924/83A
Other languages
Italian (it)
Other versions
IT8323924A0 (en
Inventor
Matsumaru Akihiko
Original Assignee
Nippon Mektron 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 Nippon Mektron Kk filed Critical Nippon Mektron Kk
Publication of IT8323924A0 publication Critical patent/IT8323924A0/en
Application granted granted Critical
Publication of IT1167028B publication Critical patent/IT1167028B/en

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
    • H01H13/702—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
    • H01H2209/00—Layers
    • H01H2209/014—Layers composed of different layers; Lubricant in between
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/08—Properties of the membrane with memory properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/008—Part of substrate or membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/016—Pressure reduction membrane; Spreader layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/002—Layer thickness
    • H01H2227/004—Membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/024—Packing between substrate and membrane
    • H01H2229/028—Adhesive
IT23924/83A 1982-11-30 1983-11-28 ELECTRIC MEMBRANE KEYBOARD WITH BUFFER LAYER ON AT LEAST ONE SWITCHING SHEET OR CIRCUIT LAYER IT1167028B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57211125A JPS59101724A (en) 1982-11-30 1982-11-30 Keyboard switch

Publications (2)

Publication Number Publication Date
IT8323924A0 IT8323924A0 (en) 1983-11-28
IT1167028B true IT1167028B (en) 1987-05-06

Family

ID=16600801

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23924/83A IT1167028B (en) 1982-11-30 1983-11-28 ELECTRIC MEMBRANE KEYBOARD WITH BUFFER LAYER ON AT LEAST ONE SWITCHING SHEET OR CIRCUIT LAYER

Country Status (5)

Country Link
JP (1) JPS59101724A (en)
DE (1) DE3343376A1 (en)
FR (1) FR2537378A1 (en)
GB (1) GB2133216A (en)
IT (1) IT1167028B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61180431U (en) * 1985-04-30 1986-11-11
EP1429355A1 (en) * 2002-12-09 2004-06-16 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Foil-type switching element
EP1429357A1 (en) 2002-12-09 2004-06-16 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Foil-type switching element with multi-layered carrier foil

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382338A (en) * 1966-04-26 1968-05-07 Ibm Pushbutton actuator for elastomeric switch
US3592979A (en) * 1969-11-05 1971-07-13 Ncr Co Elastomeric keyboard with improved printed circuit contact means
US3617660A (en) * 1970-01-23 1971-11-02 Ibm Keyboard actuating mechanism for diaphragm electric switch contact array
US3676616A (en) * 1970-12-21 1972-07-11 Ibm Eds serial switch array
US3777222A (en) * 1972-05-12 1973-12-04 Ibm Modular touch sensitive indicating panels with touch and light transmissive overlay cover membrane containing visible printed indicia
US3911233A (en) * 1973-02-20 1975-10-07 Matsushita Electric Ind Co Ltd Keyboard switch for desk top electronic calculators
US3860771A (en) * 1973-10-29 1975-01-14 Chomerics Inc Keyboard switch assembly with dome shaped actuator having associated underlying contactor means
US3969600A (en) * 1975-06-11 1976-07-13 Burroughs Corporation Tactile feedback keyboard switch assembly and actuator
US4158115A (en) * 1978-06-26 1979-06-12 W. H. Brady Co. Internally connecting flexible switch
US4520248A (en) * 1980-08-15 1985-05-28 Rogers Corporation Keyboard assembly
US4362911A (en) * 1980-09-17 1982-12-07 Ncr Corporation Membrane keyboard switch assembly having selectable tactile properties

Also Published As

Publication number Publication date
IT8323924A0 (en) 1983-11-28
FR2537378A1 (en) 1984-06-08
GB8332032D0 (en) 1984-01-04
GB2133216A (en) 1984-07-18
DE3343376A1 (en) 1984-05-30
JPS59101724A (en) 1984-06-12

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