EP 0558239 A1 19930901 - Improvements in or relating to key button switches.

Title (en)

Improvements in or relating to key button switches.

Title (de)

Drucktastenschalter.

Title (fr)

Commutateur à bouton-poussoirs.

Publication

EP 0558239 A1 19930901

Application

EP 93301242 A 19930219

Priority

GB 9203859 A 19920222
GB 9220061 A 19920923

Abstract (en)

A key button structure for a keyboard of a data input device comprises a base plate 1 having an opening 5 defining a switch site for a push button 3 biassed to a raised inoperative position by a resiliently flexible membrane 2 integral with the base plate 1. The base plate 1 has integral legs 4 for securing to a printed circuit board 21 and integral guide posts 6 to locate and retain the push button 3. Single and multi-button assemblies are disclosed. <IMAGE>

IPC 1-7

H01H 13/14; H01H 13/70

IPC 8 full level

G06F 3/02 (2006.01); H01H 13/14 (2006.01); H01H 13/702 (2006.01); H01H 13/705 (2006.01)

CPC (source: EP)

H01H 13/705 (2013.01); H01H 2215/012 (2013.01); H01H 2221/026 (2013.01); H01H 2221/03 (2013.01); H01H 2221/064 (2013.01); H01H 2221/066 (2013.01); H01H 2223/054 (2013.01); H01H 2233/02 (2013.01)

Citation (search report)

[X] EP 0144916 A2 19850619 - SIEMENS AG [DE]
[X] EP 0204223 A1 19861210 - SIEMENS AG [DE]
[X] EP 0051749 A1 19820519 - PREH ELEKTRO FEINMECHANIK [DE]
[A] EP 0110094 A1 19840613 - RUF KG WILHELM [DE]

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

GB 2264393 A 19930825; GB 9303386 D0 19930407; CA 2090001 A1 19930823; EP 0558239 A1 19930901; JP H0668746 A 19940311

DOCDB simple family (application)

GB 9303386 A 19930219; CA 2090001 A 19930219; EP 93301242 A 19930219; JP 3183793 A 19930222