GB1524200A - Push button electrical switches - Google Patents

Push button electrical switches

Info

Publication number
GB1524200A
GB1524200A GB3938475A GB3938475A GB1524200A GB 1524200 A GB1524200 A GB 1524200A GB 3938475 A GB3938475 A GB 3938475A GB 3938475 A GB3938475 A GB 3938475A GB 1524200 A GB1524200 A GB 1524200A
Authority
GB
United Kingdom
Prior art keywords
key
base plate
push button
electrical switches
plate
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
GB3938475A
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Publication of GB1524200A publication Critical patent/GB1524200A/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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • 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
    • H01H13/705—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 construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H2009/189—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks with a tactile symbol or indication, e.g. for blind people
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/044—Injection moulding
    • H01H2229/048—Insertion moulding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/002—Key modules joined to form button rows
    • H01H2233/004—One molded part

Landscapes

  • Push-Button Switches (AREA)

Abstract

1524200 Retractive switches SHARP KK 25 Sept 1975 [2 Oct 1974] 39384/75 Heading H1N An electrical switch includes a unitary metal plate which has been bent after removing portions therefrom so as to define a pushbutton key comprising a top portion 84 joined by downwardly dependent strips 86 to a lower support 88, the key being biased to a non- operative position by resilient leaf springs 82 which connect the support 88 to a base plate 18. A single base plate 98 is provided with a number of integral switch keys, each encapsulated in resin 90, and is positioned above a substrate 100 carrying comb shaped contacts 102, 104 which are bridged by a conducting rubber plate 106 when a key 90 is depressed. Numerous methods of marking a key with a desired configuration are described.
GB3938475A 1974-10-02 1975-09-25 Push button electrical switches Expired GB1524200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11408374A JPS5638015B2 (en) 1974-10-02 1974-10-02

Publications (1)

Publication Number Publication Date
GB1524200A true GB1524200A (en) 1978-09-06

Family

ID=14628635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3938475A Expired GB1524200A (en) 1974-10-02 1975-09-25 Push button electrical switches

Country Status (2)

Country Link
JP (1) JPS5638015B2 (en)
GB (1) GB1524200A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924782A1 (en) * 1979-06-20 1981-01-15 Philips Patentverwaltung Low-height keyboard pushbutton - has cranked wire contact spring with sides connected to pushbutton shaft and to housing
GB2133218A (en) * 1982-12-30 1984-07-18 Nippon Mektron Kk Membrane keyboard electrical switch
GB2178237A (en) * 1985-06-24 1987-02-04 Alps Electric Co Ltd Push button switch
GB2208038A (en) * 1987-06-29 1989-02-15 Seikosha Kk Push-button switch
GB2239629A (en) * 1989-12-14 1991-07-10 Wragby Plastics Limited Keys for keypads

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167978A (en) * 1974-12-06 1976-06-12 Sharp Kk Supuringuo itsutaikashitakiitotsupu
JPS5826765B2 (en) * 1979-11-26 1983-06-04 シャープ株式会社 push button switch
JPS5895665A (en) * 1981-11-30 1983-06-07 トヨタ自動車株式会社 Hip treatment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823309A (en) * 1973-06-21 1974-07-09 J Caruso Multiple key assembly for calculators and the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924782A1 (en) * 1979-06-20 1981-01-15 Philips Patentverwaltung Low-height keyboard pushbutton - has cranked wire contact spring with sides connected to pushbutton shaft and to housing
GB2133218A (en) * 1982-12-30 1984-07-18 Nippon Mektron Kk Membrane keyboard electrical switch
GB2178237A (en) * 1985-06-24 1987-02-04 Alps Electric Co Ltd Push button switch
GB2208038A (en) * 1987-06-29 1989-02-15 Seikosha Kk Push-button switch
GB2239629A (en) * 1989-12-14 1991-07-10 Wragby Plastics Limited Keys for keypads

Also Published As

Publication number Publication date
JPS5140574A (en) 1976-04-05
JPS5638015B2 (en) 1981-09-03

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950924