EP 0058849 A2 19820901 - Membrane keyboard assembly.
Title (en)
Membrane keyboard assembly.
Title (de)
Membran-Tastatur-Aufbau.
Title (fr)
Assemblage de clavier à membrane.
Publication
Application
Priority
US 23607581 A 19810219
Abstract (en)
The assembly includes a flexible insulating film (12) with indicia (21) visible on the upper surface and conductive contacts (14, 16, 18) on the lower surface. The top film may be comprised of two separate films (20, 12) for ease of applying the indicia and the contacts. The other contact of each SPST switch is a ground or reference contact formed by a chassis (10) or other relatively large and rigid conductive surface. A resilient spacer (22) is retained between the upper and lower switch contact surfaces and contains an aperture in registration with each upper switch contact.
IPC 1-7
IPC 8 full level
H01H 13/702 (2006.01)
CPC (source: EP)
H01H 13/702 (2013.01); H01H 2209/026 (2013.01); H01H 2229/002 (2013.01); H01H 2229/004 (2013.01); H01H 2239/008 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 82100748 A 19820203