EP 0417048 A3 19920108 - ELECTRICAL SWITCHING ARRANGEMENT WITH ILLUMINATING MEANS
Title (en)
ELECTRICAL SWITCHING ARRANGEMENT WITH ILLUMINATING MEANS
Publication
Application
Priority
CH 323789 A 19890906
Abstract (en)
[origin: EP0417048A2] The electrical switching arrangement (11) has a housing (13) which can be attached to a support (3) and has a key surface (13k) which is accessible from a surrounding space adjacent to the front side (3c) of the support. A piezoelectric transducer (25) is arranged inside (19) the housing. When a person presses the key surface (13k) with a finger, the transducer (25) produces an electrical signal. The housing (13) is provided on its end (13h) with an annular groove (13n) which surrounds the key surface (13k) and is closed by transparent closing means (39), from which at least one light-emitting diode (37), provided in the housing (13) can shine out through the closing means (39) and hence make the key surface (13) visually identifiable even when the surrounding space is dark. The switching arrangement (11) is robust and highly resistant particularly to external applications of force.
IPC 1-7
IPC 8 full level
B66B 1/46 (2006.01); H01H 13/02 (2006.01); H01H 9/04 (2006.01)
CPC (source: EP)
B66B 1/462 (2013.01); B66B 1/465 (2013.01); H01H 13/023 (2013.01); H01H 9/042 (2013.01); H01H 2201/02 (2013.01); H01H 2219/014 (2013.01); H01H 2219/056 (2013.01); H01H 2219/0622 (2013.01); H01H 2239/038 (2013.01)
Citation (search report)
- [Y] EP 0324228 A2 19890719 - US ELEVATOR CORP [US]
- [Y] US 3113197 A 19631203 - GREEN ALBERT L
- [A] DE 3133134 A1 19830303 - RAU SWF AUTOZUBEHOER [DE]
- [A] US 4778966 A 19881018 - OBATA KOSEI [JP], et al
Designated contracting state (EPC)
AT CH DE FR IT LI NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 90810676 A 19900906