MEMBRANE CONTACTOR ASSEMBLY WITH IRREGULAR SURFACE SPACE SHEET, IN PARTICULAR FOR KEYBOARD KEYBOARDS

摘要

The invention relates to a set of membrane switches. / P p The switch assembly is characterized in that it comprises at least two circuit carrying substructures 2, 6 between which there is provision for a circuit. SPACING SHEET 12 WHICH HAS OPENINGS DELIMINATING CAVITIES 3 IN WHICH THE INDIVIDUAL CONTACTERS 1, 5 OF THE SAME ARE LOCATED; SPACING SHEET 12 HAS AT LEAST ONE FIRST IRREGULAR SURFACE 7A JUSTIFIED TO ONE OF SUBSTRATES 2, 6 IN ORDER TO DEFINE GAS FLOW PASSAGES WHICH ARE IN COMMUNICATION WITH THESE CAVITIES 3. / P P APPLICATION A MINIATURIZED TOUCH KEYBOARDS, ETC. / P