Plug-in letter and number boards in plastics design

摘要

Positive (6-9) and negative (3-5) plug connections stabilise and provide for the shape and function of a tableau of cube and symbol figures as well as rules, using positive connections (9) as round discs of a few cm diameter having an outer ring (8), round centre pin (6) and an annular depression (7) between ring and pin. Negative plug-on connections consist of smaller diameter discs set concave to the positive discs (9) and holed (3) for the pin the centre and enclosed here by a ring (4) to home into the positive connection depression (6). Three tableaux are provided, each of surface-structured rectangular plastics having a set of negative connections on the top or playing surface of the tableau as well as positive plug-in connections (6) in the short and long sides. These connections consist of a pin (6) and negative connection composed of pin hole (3). The respective positive and negative connections can be used to optionally extend the layout and top side of the tableau presents a playing area made up of a set of imaginary squares parallel to the sides, and with the negative plug-on connections (3-5) in the centre of each square.