US Patent 9873062 Module and modular system

A modular system has two or more modules, wherein each module is delimited by one or more side surfaces and has at least one magnet chamber with a magnet body provided in the magnet chamber, wherein the magnet body is provided rotatably in the magnet chamber, and wherein the magnet body has a shell surface in the shape of a rotary body or cylinder, wherein the magnet body has a greater dimension along the rotary body axis than perpendicular to the rotary body axis, such that the magnet body has an elongate form, and in that the magnet body has two poles of different magnetic polarity, said poles extending adjacent to one another along the rotary body axis.