GB2152287B - Contact unit of a push button switch - Google Patents

Contact unit of a push button switch

Info

Publication number
GB2152287B
GB2152287B GB08416268A GB8416268A GB2152287B GB 2152287 B GB2152287 B GB 2152287B GB 08416268 A GB08416268 A GB 08416268A GB 8416268 A GB8416268 A GB 8416268A GB 2152287 B GB2152287 B GB 2152287B
Authority
GB
United Kingdom
Prior art keywords
push button
button switch
contact unit
contact
unit
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
GB08416268A
Other versions
GB2152287A (en
GB8416268D0 (en
Inventor
Kazutaka Iwahashi
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.)
NEC Platforms Ltd
Original Assignee
Nitsuko 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 Nitsuko Corp filed Critical Nitsuko Corp
Publication of GB8416268D0 publication Critical patent/GB8416268D0/en
Publication of GB2152287A publication Critical patent/GB2152287A/en
Application granted granted Critical
Publication of GB2152287B publication Critical patent/GB2152287B/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
    • H01H13/78—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
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/24—Reinforcing the conductive pattern
    • H05K3/245—Reinforcing conductive patterns made by printing techniques or by other techniques for applying conductive pastes, inks or powders; Reinforcing other conductive patterns by such techniques
    • H05K3/247—Finish coating of conductors by using conductive pastes, inks or powders
    • H05K3/249—Finish coating of conductors by using conductive pastes, inks or powders comprising carbon particles as main constituent
    • 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
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/038—Form of contacts to solve particular problems to be bridged by a dome shaped contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/04—Details of printed conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/018—Printed contacts; Metal foil
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09372—Pads and lands
    • H05K2201/09436—Pads or lands on permanent coating which covers the other conductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
    • H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Push-Button Switches (AREA)
GB08416268A 1983-12-28 1984-06-26 Contact unit of a push button switch Expired GB2152287B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983200428U JPS60110938U (en) 1983-12-28 1983-12-28 Contact structure in key switch

Publications (3)

Publication Number Publication Date
GB8416268D0 GB8416268D0 (en) 1984-08-01
GB2152287A GB2152287A (en) 1985-07-31
GB2152287B true GB2152287B (en) 1988-07-06

Family

ID=16424132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08416268A Expired GB2152287B (en) 1983-12-28 1984-06-26 Contact unit of a push button switch

Country Status (4)

Country Link
JP (1) JPS60110938U (en)
AU (1) AU552278B2 (en)
GB (1) GB2152287B (en)
NO (1) NO164567C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627554A1 (en) * 1986-08-14 1988-02-25 Schoeller & Co Elektrotech METHOD FOR PRODUCING A KEY SWITCHING DEVICE AND KEY SWITCHING DEVICE
EP0565959B1 (en) * 1992-04-14 1996-08-28 MOTOROLA GmbH A keypad
EP1280394A1 (en) * 2001-07-26 2003-01-29 Koninklijke Philips Electronics N.V. Apparatus comprising contacts made from carbon tracks and process for manufacturing the same

Also Published As

Publication number Publication date
JPS60110938U (en) 1985-07-27
NO842795L (en) 1985-07-01
GB2152287A (en) 1985-07-31
GB8416268D0 (en) 1984-08-01
AU2957384A (en) 1985-07-04
NO164567C (en) 1990-10-17
NO164567B (en) 1990-07-09
AU552278B2 (en) 1986-05-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980626