This sweeping reinvention of a door by Klemens Torggler Australian designer is based on folding and twisting system to collapse and roll to one side. The four-panel prototype flips out of the way to open, and flips back to close. Two halves of the door are attached by pivots at the bottom and top of the frame and a hinge in the middle.
This 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, explains Klemens
[Via – Core77]