EP0241906A3 - Layered keyboard - Google Patents

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Info

Publication number
EP0241906A3
EP0241906A3 EP87105500A EP87105500A EP0241906A3 EP 0241906 A3 EP0241906 A3 EP 0241906A3 EP 87105500 A EP87105500 A EP 87105500A EP 87105500 A EP87105500 A EP 87105500A EP 0241906 A3 EP0241906 A3 EP 0241906A3
Authority
EP
European Patent Office
Prior art keywords
layered
keyboard
layered keyboard
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.)
Granted
Application number
EP87105500A
Other languages
German (de)
Other versions
EP0241906B1 (en
EP0241906A2 (en
Inventor
Horst Hoffman
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.)
Wilhelm Ruf KG
Original Assignee
Wilhelm Ruf KG
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 Wilhelm Ruf KG filed Critical Wilhelm Ruf KG
Publication of EP0241906A2 publication Critical patent/EP0241906A2/en
Publication of EP0241906A3 publication Critical patent/EP0241906A3/en
Application granted granted Critical
Publication of EP0241906B1 publication Critical patent/EP0241906B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H13/78—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
    • H01H13/80—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 manner of cooperation of the contacts, e.g. with both contacts movable or with bounceless contacts
    • 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
    • H01H13/702—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
    • H01H13/703—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 characterised by spacers between contact carrying layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/008—Both contacts movable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/032—Metal foil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/01—Increasing rigidity; Anti-creep
    • 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
    • H01H2211/00—Spacers
    • H01H2211/006—Individual areas
    • H01H2211/02—Pins forming part of substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/036—Manufacturing ultrasonic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/042—Snap coupling; Snap mounting
EP87105500A 1986-04-17 1987-04-14 Layered keyboard Expired - Lifetime EP0241906B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8610553U 1986-04-17
DE8610553U DE8610553U1 (en) 1986-04-17 1986-04-17 Membrane keyboard

Publications (3)

Publication Number Publication Date
EP0241906A2 EP0241906A2 (en) 1987-10-21
EP0241906A3 true EP0241906A3 (en) 1989-12-27
EP0241906B1 EP0241906B1 (en) 1992-09-30

Family

ID=6793782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105500A Expired - Lifetime EP0241906B1 (en) 1986-04-17 1987-04-14 Layered keyboard

Country Status (4)

Country Link
US (1) US4771143A (en)
EP (1) EP0241906B1 (en)
DE (2) DE8610553U1 (en)
FI (1) FI84671C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8610553U1 (en) * 1986-04-17 1986-05-28 Wilhelm Ruf Kg, 8000 Muenchen Membrane keyboard
EP0322514A3 (en) * 1987-12-30 1990-09-12 Hewlett-Packard Company Keyboard switch system
JP2522514B2 (en) * 1988-03-10 1996-08-07 シャープ株式会社 Operation input device
US5220136A (en) * 1991-11-26 1993-06-15 Elographics, Inc. Contact touchscreen with an improved insulated spacer arrangement
GB2345193B (en) 1998-12-22 2002-07-24 Nokia Mobile Phones Ltd Metallic keys
US6657146B1 (en) 2000-03-28 2003-12-02 Thomson Licensing, S.A. Button ball and alignment rib
JP4359812B2 (en) 2002-07-08 2009-11-11 日本電気株式会社 Switch-integrated casing and electronic device having the same
US6639165B1 (en) * 2002-10-28 2003-10-28 Delphi Technologies, Inc. Multiple contact fluid pressure switch
GB0403854D0 (en) * 2004-02-20 2004-03-24 Pelikon Ltd Switches
EP1986207B9 (en) * 2006-02-13 2012-02-15 NEC Corporation Switch and electronic equipment having same
JP4598721B2 (en) * 2006-05-22 2010-12-15 シャープ株式会社 Operation key parts
US20110290628A1 (en) * 2010-05-31 2011-12-01 Sunrex Technology Corp Membrane keyboard with parts being fixedly secured together

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046612A1 (en) * 1969-09-25 1971-04-08 Lematex Inc Multiple switch arrangement
DE2805722A1 (en) * 1977-02-22 1978-08-24 Chomerics Inc KEYBOARD WITH CONCAVES AND CONVEX DOME
DE3108183A1 (en) * 1980-03-11 1982-02-04 Matsushita Electric Ind Co Ltd METHOD FOR PRODUCING KEY SWITCHES
DE8610553U1 (en) * 1986-04-17 1986-05-28 Wilhelm Ruf Kg, 8000 Muenchen Membrane keyboard

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375585A (en) * 1981-01-08 1983-03-01 Atari, Inc. Deformable switch keyboard
FR2541523B1 (en) * 1983-02-17 1985-10-25 Metallo Ste Fse MATRIX PRESELECTOR
JPS6059429U (en) * 1983-09-30 1985-04-25 アルプス電気株式会社 switch device
US4489227A (en) * 1984-01-11 1984-12-18 Sheldahl, Inc. Back lighted, full travel push button membrane keyboard

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046612A1 (en) * 1969-09-25 1971-04-08 Lematex Inc Multiple switch arrangement
DE2805722A1 (en) * 1977-02-22 1978-08-24 Chomerics Inc KEYBOARD WITH CONCAVES AND CONVEX DOME
DE3108183A1 (en) * 1980-03-11 1982-02-04 Matsushita Electric Ind Co Ltd METHOD FOR PRODUCING KEY SWITCHES
DE8610553U1 (en) * 1986-04-17 1986-05-28 Wilhelm Ruf Kg, 8000 Muenchen Membrane keyboard

Also Published As

Publication number Publication date
DE3781924D1 (en) 1992-11-05
FI84671C (en) 1991-12-27
EP0241906B1 (en) 1992-09-30
DE8610553U1 (en) 1986-05-28
EP0241906A2 (en) 1987-10-21
FI84671B (en) 1991-09-13
US4771143A (en) 1988-09-13
FI871679L (en) 1987-10-18
FI871679A0 (en) 1987-04-15

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