GB1274162A - An electrical keyboard - Google Patents

An electrical keyboard

Info

Publication number
GB1274162A
GB1274162A GB20970/71A GB2097071A GB1274162A GB 1274162 A GB1274162 A GB 1274162A GB 20970/71 A GB20970/71 A GB 20970/71A GB 2097071 A GB2097071 A GB 2097071A GB 1274162 A GB1274162 A GB 1274162A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
spaced
apertured
contacts
overlays
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
GB20970/71A
Inventor
Morris Krakinowski
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1274162A publication Critical patent/GB1274162A/en
Expired 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
    • H01H13/702—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
    • 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
    • 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
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/026—Pencil operated
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/006—Switch site location more then one pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2237/00—Mechanism between key and laykey
    • H01H2237/006—Guided plunger or ball
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/026—Internal encoding, e.g. validity bit

Landscapes

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

Abstract

1,274,162. Retractive switches. INTERNATIONAL BUSINESS MACHINES CORP. 19 April, 1971 [16 Feb., 1970], No. 20970/71. Heading H1N. [Also in Division B6F] An electric contact making keyboard comprises a base 10 with an array of first electrical contacts 12, 12A spaced thereon. An apertured insulating layer 14 overlays the base, and a diaphragm 18 overlays the insulating layer. Second electrical contacts 20, 20A are spaced on the underside of the diaphragm in registration with first contacts 12, 12A, via the apertures in layer 14. An apertured guide plate 24 is provided above and spaced from the diaphragm 18. Each aperture has a plunger 22 with a wider and larger upper portion 22A and a second narrower and lower portion 22B which is in registration with the first and second contacts. At least the lower portion of plunger 22 comprises an elastomeric material. An elastomeric nomenclature sheet on the upper surface of the guide plate 24, seals the mechanism against dust and dirt. An apertured metal plate 30 holds the nomenclature sheet in position and prevents the accidental triggering of the keyboard.
GB20970/71A 1970-02-16 1971-04-19 An electrical keyboard Expired GB1274162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1149470A 1970-02-16 1970-02-16

Publications (1)

Publication Number Publication Date
GB1274162A true GB1274162A (en) 1972-05-17

Family

ID=21750628

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20970/71A Expired GB1274162A (en) 1970-02-16 1971-04-19 An electrical keyboard

Country Status (6)

Country Link
US (1) US3584162A (en)
JP (1) JPS5220675B1 (en)
CA (1) CA921083A (en)
DE (1) DE2106732C3 (en)
FR (1) FR2078163A5 (en)
GB (1) GB1274162A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122422A (en) * 1982-04-30 1984-01-11 Nippon Mektron Kk Keyboard switch
GB2165696A (en) * 1984-10-11 1986-04-16 Immediate Business Systems Plc Keyboards
GB2248343A (en) * 1990-09-28 1992-04-01 Telektron Ltd Control panels for pressurised enclosures

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693775A (en) * 1970-06-30 1972-09-26 Ibm Actuator for elastic diaphragm switch keyboard
US3696908A (en) * 1970-11-09 1972-10-10 Sperry Rand Corp Capacitive key
US3668337A (en) * 1971-01-18 1972-06-06 Thomas & Betts Corp Matrix switch with improved flexible insulative spacer arrangement
US3731015A (en) * 1971-05-18 1973-05-01 Universal Technology Control keyboard switch with cantilevered contact and diode matrix array
US3746816A (en) * 1971-05-18 1973-07-17 Universal Technology Pushbutton cantilevered leaf spring contact switch assembly for keyboard type switch arrays
US3839785A (en) * 1971-06-01 1974-10-08 Texas Instruments Inc Pushbutton keyboard system
US3808384A (en) * 1971-06-01 1974-04-30 Texas Instruments Inc Pushbutton keyboard system
US3797630A (en) * 1971-07-12 1974-03-19 Alphanumeric Holdings Ltd Keyboard for electronic circuit
US3743797A (en) * 1971-08-30 1973-07-03 Bell Telephone Labor Inc Stroke coded keyboard switch assembly
US3723673A (en) * 1971-10-13 1973-03-27 Addmaster Corp Keyboard switch assembly with wire conductor matrix contact array
US3850279A (en) * 1972-12-26 1974-11-26 Ibm Print point positioning control for a character-by-character printer
US3886335A (en) * 1973-01-26 1975-05-27 Ind Electronics Engineers Inc Collated cable matrix switch
US3856998A (en) * 1973-06-01 1974-12-24 Burroughs Corp Keyboard switch assembly with improved operating means
US3854018A (en) * 1973-06-14 1974-12-10 Amp Inc Multiple circuit selector switch assembly having movable contact means adapted to retain itself in closed circuit position
JPS5329226B2 (en) * 1973-08-23 1978-08-19
JPS50102416U (en) * 1974-01-23 1975-08-23
JPS5828264Y2 (en) * 1974-04-30 1983-06-20 シャープ株式会社 Dental clinic file
AT337275B (en) * 1974-05-07 1977-06-27 Preh Elektro Feinmechanik ULTRASONIC REMOTE CONTROL DEVICE
US3944766A (en) * 1974-07-03 1976-03-16 Essex International, Inc. Seat belt buckle having pushbutton type switch with elastomeric conductor bridging contact
US4092820A (en) * 1975-03-25 1978-06-06 Citizen Watch Company Limited Electronic timepiece
US3955498A (en) * 1975-03-27 1976-05-11 Scott Thaddeus Leroy Electromagnetically actuated printer
US3978297A (en) * 1975-03-31 1976-08-31 Chomerics, Inc. Keyboard switch assembly with improved pushbutton and associated double snap acting actuator/contactor structure
US3987259A (en) * 1975-06-12 1976-10-19 Globe-Union Inc. Membrane switch apparatus having sequential bridging contact arrangement
JPS5244379U (en) * 1975-09-25 1977-03-29
GB1500789A (en) * 1975-10-28 1978-02-08 Girling Ltd Liquid level contents indicators for vehicle hydraulic systems
JPS5262515A (en) * 1975-11-18 1977-05-24 Kiyoshi Shinoki Japanese typewriter
JPS5281016U (en) * 1975-12-15 1977-06-16
JPS52145380U (en) * 1976-04-28 1977-11-04
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
JPS532113A (en) * 1976-06-25 1978-01-10 Wakamatsu Ai Typewriter
JPS5759977Y2 (en) * 1976-07-16 1982-12-21
US4086451A (en) * 1976-12-06 1978-04-25 Texas Instruments Incorporated Keyboard apparatus
JPS5396937U (en) * 1978-01-19 1978-08-07
US4229633A (en) * 1978-03-27 1980-10-21 Gillilan Edward L Programmable switch
JPS54157284U (en) * 1978-04-25 1979-11-01
US4274752A (en) * 1979-04-02 1981-06-23 International Business Machines Corporation Keyboard multiple switch assembly
US4296283A (en) * 1979-05-17 1981-10-20 Tapeswitch Corporation Of America Normally closed wafer switch
US4262182A (en) * 1980-01-11 1981-04-14 General Electric Company Fully illuminated backlit membrane touch switch
US4517421A (en) * 1980-01-28 1985-05-14 Margolin George D Resilient deformable keyboard
DE3012717A1 (en) * 1980-04-01 1981-10-08 Wilhelm Ruf KG, 8000 München KEYPAD
US4322588A (en) * 1980-04-04 1982-03-30 Umc Industries, Inc. Slide selector switch device
US4417294A (en) * 1981-08-28 1983-11-22 Illinois Tool Works Inc. Capacitive keyswitch
US4439647A (en) * 1982-07-14 1984-03-27 Nick Calandrello Touchpad keyboard
US4449024A (en) * 1983-05-03 1984-05-15 Kb Denver, Inc. Backlighted illuminated keyboard
US4722621A (en) * 1985-10-30 1988-02-02 Johnson Reynold B Keyboard assembly and recording apparatus
US4706097A (en) * 1986-04-03 1987-11-10 Hewlett Packard Company Near-linear spring connect structure for flexible interconnect circuits
US4823294A (en) * 1986-08-28 1989-04-18 Rouhani S Zia Single-hand computer keyboard
EP0546003B1 (en) * 1990-08-30 1994-12-21 PLATZ, Karl-Otto Pressure switch
US5239373A (en) * 1990-12-26 1993-08-24 Xerox Corporation Video computational shared drawing space
JP2955176B2 (en) * 1994-02-04 1999-10-04 吉田工業株式会社 Manufacturing method of panel button for electric parts
US6652123B2 (en) * 2001-05-07 2003-11-25 Jiahn-Chang Wu Light emitting diode display having heat sinking circuit rails
EP1431996A3 (en) * 2002-12-20 2006-08-09 Siemens Aktiengesellschaft Input device for electric equipment
JP4286019B2 (en) * 2003-02-04 2009-06-24 株式会社根本杏林堂 Chemical injection system
US8561008B2 (en) * 2005-03-10 2013-10-15 Siemens Aktiengesellschaft Presentation of hierarchical software structures
JP2013512548A (en) * 2009-12-03 2013-04-11 オムロン・デュアルテック・オートモーティブ・エレクトロニクス・インコーポレイテッド Electrical switch assembly including a five-way switching mechanism and an illuminated flexible layer
US20140202841A1 (en) * 2013-01-21 2014-07-24 Judco Partnership, Llc Pushbutton switch
US11367581B1 (en) * 2021-04-13 2022-06-21 Xerox Corporation Membrane switches configured to sense pressure applied from compliant and rigid objects
US12009159B2 (en) 2021-04-13 2024-06-11 Xerox Corporation Membrane switches configured to sense pressure applied from compliant and rigid objects

Family Cites Families (4)

* 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
US3382338A (en) * 1966-04-26 1968-05-07 Ibm Pushbutton actuator for elastomeric switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122422A (en) * 1982-04-30 1984-01-11 Nippon Mektron Kk Keyboard switch
GB2165696A (en) * 1984-10-11 1986-04-16 Immediate Business Systems Plc Keyboards
GB2248343A (en) * 1990-09-28 1992-04-01 Telektron Ltd Control panels for pressurised enclosures
GB2248343B (en) * 1990-09-28 1994-04-27 Telektron Ltd Pressurisation protection system with keyboard

Also Published As

Publication number Publication date
JPS5220675B1 (en) 1977-06-04
DE2106732C3 (en) 1978-11-09
JPS46761A (en) 1971-09-03
FR2078163A5 (en) 1971-11-05
DE2106732B2 (en) 1978-02-23
US3584162A (en) 1971-06-08
CA921083A (en) 1973-02-13
DE2106732A1 (en) 1971-09-02

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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