Klemens Torggler’s door is an invention based on rotating squares, The special construction makes it possible to move the door sideways without the use of tracks. This technical trick opens up new applications for the door. This is not Torggler’s only alternative-door solution; his website actually lists several models. They’re all based on rotating squares, but some systems incorporate rods, while others make use of a wheel, and a track arranged in an epitrochoid curve. The Evolution Door works by virtue of four strategically attached triangles that separate, fold and rotate with a gentle flick of the wrist. It’s a wonderful play on geometry that makes it possible to move the screen from side to side without the use of a track, a topological trick that Torggler says “opens up new applications for the door.” For more information, we invite you to visit the link below.
