Electronic switch unit, has shaft or axle in form of separate part for retrospective fitting into aperture in unit and cover for aperture on side remote from unit

摘要

The unit (1) is mounted on a circuit board as a discrete component with a rotary shaft or axle (3) that protrudes out of the unit on its side remote from the board when installed. The shaft or axle is in the form of a separate part that can be retrospectively fitted into an aperture in the unit. A cover (5) for the aperture on the side remote from the unit has a flat surface on the side remote from the unit or circuit board. An Independent claim is also included for a method of populating a circuit board.