EP 0538199 B1 19970903 - Electrical push botton switch
Title (en)
Electrical push botton switch
Title (de)
Elektrischer Tastschalter
Title (fr)
Interrupteur à bouton poussoir
Publication
Application
Priority
- DE 4133949 A 19911014
- DE 4139554 A 19911130
Abstract (en)
[origin: EP0538199A2] Electrical push-button switches, especially short-stroke push-buttons, are used to an increasing extent in film keyboards of electronic apparatuses. A push-button switch (1) has a push-button and a centring cap (11) with positioning pins (23) which centre a snap disc (3). For its part, the snap disc (3) rests on a printed-circuit board (2) having contact fields (6), and bridges over these fields in the event of manual operation of a covering film (12). In order to limit the force which acts on the snap disc (3), a supporting region which simultaneously acts as a movement limiter is provided in the push-button and centring cap (14). The push-button switch (1) of such construction can be assembled detachably and without solder and has a very long life. Illumination and/or marking elements can also be integrated. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 9/16 (2006.01); H01H 13/02 (2006.01); H01H 13/48 (2006.01); H01H 13/70 (2006.01)
CPC (source: EP)
H01H 13/023 (2013.01); H01H 13/48 (2013.01); H01H 13/7006 (2013.01); H01H 2205/024 (2013.01); H01H 2221/064 (2013.01); H01H 2227/026 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0538199 A2 19930421; EP 0538199 A3 19930630; EP 0538199 B1 19970903; AT E157808 T1 19970915; DE 4139554 A1 19930415; DE 59208850 D1 19971009
DOCDB simple family (application)
EP 92810783 A 19921013; AT 92810783 T 19921013; DE 4139554 A 19911130; DE 59208850 T 19921013