Patent ID: 9064652
Filing Date: 2015-06-23
Classification: H01B,H01H,Y10T

Abstract:
1. A method of manufacturing a flexible membrane keypad comprising of at least one normally closed contact key, the method comprising the steps of: equipping said keypad with at least one double sided printed circuit comprising at least one front contact face and one back contact face, providing an insertion slot in the printed circuit board between the front contact face and the back contact face, and inserting into said slot, a flexible conducting strip forming a normally closed electrical contact between the front contact face and back contact face, said flexible strip comprising a pressure point so as to enable the exertion of a force for breaking the normally closed electrical contact, wherein said flexible strip includes a flexible center tab comprising said pressure point, that is electrically and mechanically joined with and adjacent to a first side tab and a second side tab through a common point, the first and the second side tabs being located in one and the same plane and the center tab being arranged in an offset position in an orthogonal direction to said plane so as to form a first insertion space and a second insertion space for said flexible strip at said slot, wherein the inserting step comprises the step of: