Illuminatable key button cap for sheet-covered keyboard for actuation of switching elements, has key disk illuminatable by light source, where key disk and pusher formed as combinely mountable key unit

摘要

The cap (1) has a key disk (4) illuminatable by a light source i.e. LED, and axially movable in an edge (6) that is fixed opposite to a printed circuit board (2). The key disk acts on a surface mountable device (SMD) solderable catch spring (7) as a switching element that is supported at the printed circuit board and generates a tactile feedback during a switching process. The key disk has a pusher (8) comprising a section (10) centrally interfusing the spring and axially guided in the printed circuit board. The key disk and pusher are formed as a combinely mountable key unit.