Folding door

Claim 1

IN A DOOR OF THE TYPE CHARACTERIZED BY A PLURALITY OF ELONGATED PANELS ADAPTED TO BE SUSPENDED FROM AN OVERHEAD TRACK, SAID PANELS BEING SERIALLY CONNECTED TO EACH OTHER ALONG THEIR MARGINAL EDGES FOR FOLDING AND UNFOLDING MOVEMENT BETWEEN STACKED AND EXTENDED POSITIONS IN AN OPENING, EACH OF SAID MARGINAL EDGES BEING PROVIDED WITH AN OUTWARDLY OPENING GROOVE, A PLURALITY OF FLEXIBLE HINGE STRIPS PROVIDED WITH ENLARGED MARGINAL FORMATIONS, WHICH FORMATIONS OF EACH STRIP ARE POSITIONED WITHIN THE GROOVES ON THE MARGINAL EDGES OF ADJOINING PANELS TO SERIALLY CONNECTED ADJACENT PANELS, THE IMPROVEMENT WHICH COMPRISES EACH OF SAID GROOVES IN SAID PANELS BEING INTERRUPTED ADJACENT THE ENDS THEREOF TO FORM A SLOT TRANSVERSELY OF SAID GROOVE, SAID SLOT BEING SPACED FROM AN END PORTION OF EACH OF SAID PANELS, A RIGID HINGE MEANS HAVING INTERCONNECTED SPACED PORTIONS THEREOF PROJECTING INTO EACH OF SAID SLOTS AND OVER THE END PORTION OF EACH OF SAID PANELS THEREBY TO PROVIDE A SUPPORT BETWEEN ADJACENT PANELS TO PREVENT RELATIVE LONGITUDINAL SHIFTING MOVEMENT THEREBETWEEN, AND PIN MEANS HOLDING SAID PROJECTING PORTIONS OF SAID HINGE MEANS TO EACH OF SAID PANELS WITHOUT IMPAIRING THE SMOOTH FOLDING MOVEMENT THEREOF.