AT306410B - Keypad for membrane switches - Google Patents

Keypad for membrane switches

Info

Publication number
AT306410B
AT306410B AT1053870A AT1053870A AT306410B AT 306410 B AT306410 B AT 306410B AT 1053870 A AT1053870 A AT 1053870A AT 1053870 A AT1053870 A AT 1053870A AT 306410 B AT306410 B AT 306410B
Authority
AT
Austria
Prior art keywords
keypad
membrane switches
switches
membrane
Prior art date
Application number
AT1053870A
Other languages
German (de)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of AT306410B publication Critical patent/AT306410B/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
    • H01H13/78—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
    • H01H13/807—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 spatial arrangement of the contact sites, e.g. superimposed sites
    • 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
    • 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
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/03—Composite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/002—Materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/006—Force isolators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/016—Protection layer, e.g. for legend, anti-scratch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/002—Longer travel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/006—Different feeling for different switch sites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/008—Pretravel to avoid inadvertent switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/02—After travel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/002—Actuators integral with membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/05—Force concentrator; Actuating dimple
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/01—Different switch sites under one actuator in same plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/002—Layer thickness
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/018—Printed contacts; Metal foil
AT1053870A 1970-01-23 1970-11-23 Keypad for membrane switches AT306410B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US543170A 1970-01-23 1970-01-23

Publications (1)

Publication Number Publication Date
AT306410B true AT306410B (en) 1973-04-10

Family

ID=21715823

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1053870A AT306410B (en) 1970-01-23 1970-11-23 Keypad for membrane switches

Country Status (17)

Country Link
US (1) US3617660A (en)
JP (1) JPS509646B1 (en)
AT (1) AT306410B (en)
BE (1) BE761091A (en)
BG (1) BG19206A3 (en)
CA (1) CA948247A (en)
CH (1) CH510914A (en)
CS (1) CS181661B2 (en)
ES (1) ES387211A1 (en)
FR (1) FR2090463A5 (en)
GB (1) GB1298290A (en)
HU (1) HU162423B (en)
IL (1) IL35919A (en)
NL (1) NL166356C (en)
PL (1) PL70354B1 (en)
SE (1) SE356384B (en)
YU (1) YU35482B (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725907A (en) * 1971-06-01 1973-04-03 Texas Instruments Inc Pushbutton keyboard system
US3858202A (en) * 1971-06-01 1974-12-31 Texas Instruments Inc Pushbutton keyboard system
US3743798A (en) * 1971-09-13 1973-07-03 North American Rockwell Elongated spring coil conductors applying tension force to pushbutton actuators in keyboard matrix switch assembly
US3723673A (en) * 1971-10-13 1973-03-27 Addmaster Corp Keyboard switch assembly with wire conductor matrix contact array
US3681723A (en) * 1971-12-09 1972-08-01 Western Electric Co Magnetic membrane switch
US3811025A (en) * 1973-05-17 1974-05-14 Lockheed Electronics Co Touch panel switch assembly
JPS5024770A (en) * 1973-07-05 1975-03-17
US3930083A (en) * 1974-07-26 1975-12-30 Litton Systems Inc Keyboard panel for an electric switch contact
JPS5168726A (en) * 1974-12-12 1976-06-14 Hosiden Electronics Co
US4022993A (en) * 1975-06-09 1977-05-10 Litton Systems, Inc. Switch assembly having electrically illuminated character display devices between transparent actuators and switch arrays
JPS5233068U (en) * 1975-08-29 1977-03-08
US4046975A (en) * 1975-09-22 1977-09-06 Chomerics, Inc. Keyboard switch assembly having internal gas passages preformed in spacer member
US4066850A (en) * 1976-06-04 1978-01-03 Ncr Corporation Keyboard switch assembly having interchangeable cover plate, indicating layer and actuator switch assembly in any operative combination
US4071718A (en) * 1976-10-22 1978-01-31 Bowmar Instrument Corporation Flat keyboard assembly having cover type membrane with protrusions to align switch components
JPS54122888A (en) * 1978-03-17 1979-09-22 Sakura Kk Keyswitch
US4258096A (en) * 1978-11-09 1981-03-24 Sheldahl, Inc. Composite top membrane for flat panel switch arrays
DE2902769C2 (en) * 1979-01-25 1982-12-09 Rudolf Schadow Gmbh, 1000 Berlin Push button switch
US4237358A (en) * 1979-05-07 1980-12-02 Oak Industries Inc. Isolation membrane switch
US4271333A (en) * 1979-09-25 1981-06-02 Northern Telecom, Inc. Pushbutton dial assembly
GB2064873B (en) * 1979-11-26 1984-09-05 Eventoff Franklin Neal Pressure sensitive electric switch
JPS58115027U (en) * 1982-02-01 1983-08-05 サンアロ−株式会社 push button panel
JPS59101724A (en) * 1982-11-30 1984-06-12 日本メクトロン株式会社 Keyboard switch
US5199557A (en) * 1988-01-28 1993-04-06 Mec A/S Method of producing an electric or electronic component, a method of producing a key and a key
EP0407012B1 (en) * 1989-07-05 1995-10-25 Acer Incorporated Membrane switch assembly
GB9004532D0 (en) * 1990-02-28 1990-04-25 Lucas Ind Plc Switch assembly
US5349263A (en) * 1991-10-09 1994-09-20 Mitsumi Electric Co., Ltd. Pointing device suitable for miniaturization
AU663640B2 (en) * 1993-02-22 1995-10-12 Illinois Tool Works Inc. Membrane switch
WO1994028634A1 (en) * 1993-05-21 1994-12-08 Arthur D. Little Enterprises, Inc. User-configurable control device
FI98968C (en) * 1995-07-24 1997-09-10 Nokia Mobile Phones Ltd Keypad and key
US5986221A (en) * 1996-12-19 1999-11-16 Automotive Systems Laboratory, Inc. Membrane seat weight sensor
US6999009B2 (en) * 2001-08-31 2006-02-14 Logitech Europe S.A. Sensing keys for keyboard
JP5025425B2 (en) * 2007-10-31 2012-09-12 三洋電機株式会社 Portable device
US20090115642A1 (en) * 2007-10-31 2009-05-07 Tetsuji Omura Device actuated by key operations
KR20210003107A (en) * 2018-03-20 2021-01-11 오클랜드 유니서비시즈 리미티드 Flexible switches, sensors and circuits

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165129B (en) * 1960-07-01
US3120584A (en) * 1960-11-29 1964-02-04 Western Electric Co Multisurface cross point switching mechanisms
US3290439A (en) * 1963-04-29 1966-12-06 Willcox Data encoding keyboard
GB1051897A (en) * 1963-06-11
US3308253A (en) * 1965-03-25 1967-03-07 Ibm Diaphragm switch having a diaphragm supported on an incompressible layer and an elastomer overlaying the diaphragm
US3350518A (en) * 1966-02-11 1967-10-31 Ibm Reader for punched record
US3382338A (en) * 1966-04-26 1968-05-07 Ibm Pushbutton actuator for elastomeric switch
US3494550A (en) * 1967-01-13 1970-02-10 Ibm Universal keyboard
US3472974A (en) * 1967-09-25 1969-10-14 Automatic Elect Lab Pushbutton switch activated by a slide with a plurality of toggle joints and cams

Also Published As

Publication number Publication date
CS181661B2 (en) 1978-03-31
CA948247A (en) 1974-05-28
NL7100787A (en) 1971-07-27
YU15271A (en) 1980-09-25
IL35919A0 (en) 1971-02-25
GB1298290A (en) 1972-11-29
US3617660A (en) 1971-11-02
JPS509646B1 (en) 1975-04-15
NL166356C (en) 1981-07-15
BG19206A3 (en) 1975-04-30
BE761091A (en) 1971-05-27
DE2057373A1 (en) 1971-08-12
CH510914A (en) 1971-07-31
YU35482B (en) 1981-02-28
PL70354B1 (en) 1974-02-28
HU162423B (en) 1973-02-28
ES387211A1 (en) 1973-12-16
DE2057373B2 (en) 1972-06-22
NL166356B (en) 1981-02-16
IL35919A (en) 1974-10-22
SE356384B (en) 1973-05-21
FR2090463A5 (en) 1972-01-14

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee