SET OF ELEMENTS FOR BUILDING OPEN, REPETITIVE THREE-DIMENSIONAL STRUCTURES MADE OF BUTTERFLY-SHAPED PIECES AND OF INTERLINKED FITTING BUTTERFLY-SHAPED PIECES

摘要

A set of elements is disclosed for building open, repetitive three-dimensional structures made of butterfly-shaped pieces and of interlinked fitting butterfly-shaped pieces. The elements are provided along their demarcation lines with connecting means. The individual elements (1 to K) are designed as polygons with n sides, n being an integer » 5. The polygons further have at least one axis of symmetry and at least three, but maximum n-1 equal adjacent angles (α) that satisfy the mathematical equation (1) α = arc cos {-cos[n1-2).90/n1].cos[(n2-2).90/n2]}, in which the integers n1 and n2 » 3 and are freely selectable. The individual elements (1 to K) further have pairs of congruent sides.