US Patent 8668271 Modular seating system

A new seating system with one or more substantially horizontal or inclined seats or supporting surfaces, and/or one or more substantially vertical or inclined backs, includes eight prismatic modular elements or modules with opposite parallel base faces in the shape of right-angled isosceles triangles, each module being joined to at least one adjacent module at the level of one corner, wherein each module is configured to rotate around said connection corner relative to the module to which it is joined.