Display cells for indicator board - are arranged in matrix between front and rear plates, with closing part, moved under magnetic field, into end settings

摘要

The indicator board has in each display cell a closing part (7) which moves under a magnetic field into the end positions of two settings next to one another. It consists of a round freely moving disc. In the end positions it comes into a stable state of equilibrium due to the fact that the lower bearing face of the cell rises from both sides in a region between the two end positions. The bearing face rises in a ramp from both lateral limiting walls (4) of the cell (3) towards the central region.