Large folding sectioned door - has bottom part of divided section as slip door with vertical bolt

摘要

The firm hinge strip, and a hinge strip movable out of the main door plane are incorporated in each of the door wings foldably interconnected to make up a large door, which has a slip door in it, permitting passage without opening the main unit. One door wing (4) is horizontally divided, and is connected with door hinge strips (5,7), on both sides, only in its upper part (11). The lower part functions as slip door (12), this being boltable by a bar lock (14,15) engaging the upper wing part from below. The slip door is pref. mounted on the side with firm hingestrip. This provides a slip door of adequate width, unaffected by a sill, without involving complex fittings.