E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
160/6
E06B 3/48 (2006.01) E05D 15/26 (2006.01) E06B 9/06 (2006.01)
Patent
CA 1117861
ABSTRACT OF THE DISCLOSURE: An improved mechanically operated concertina- foldable frame closure comprises a frame including first and second parallel sections each having guide means; a plurality of elongated flat elements separated by elongated jointing elements, each flat element being hinged to its two adjacent jointing elements along respective and adjacent lateral edges; and support means fixed to alternate jointing elements at both ends thereof and slidably engaged in the guide means of the first and second frame sections. At least one endless chain is arranged inside the frame so as to define two coplanar chain portions in each of the first and second frame sections, each chain portion being guided at each corner of the frame by a respective idler wheel for movement of the chain portions in each frame section in opposite directions; at least one alternate jointing element is connected at one end thereof to one chain portion in the first frame section and, at the other end thereof, to another chain portion in the second frame section moving in the same direction as the one chain portion. A sprocket wheel located in one of the corners engages each endless chain so as to cause the one chain portion and the other chain portion to move in one direction or the opposite, thereby causing the alternate jointing elements to move towards or away from one another to respectively open or close the framed closure. The framed closure of the invention is particularly suitable for use as blind or shutter for windows, doors, french windows and the like.
270064
Robic Robic & Associes/associates
Roccaplast S.p.a.
LandOfFree
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