Patent ID: 7377079

Claim:
Two panel elements which are flexibly connected to one another by an adhesive strip to create a swivel axis about which the panel elements are relatively turnable, each panel element including a profiled lateral edge surface arranged so that the panel elements are relatively turnable to a position in which the respective profiled lateral edge surfaces face each other, each profiled lateral edge surface including a bearing surface portion to which a respective part of the adhesive strip is connected, wherein the profiled lateral edge surface of one panel element further includes a projection, and the profiled lateral edge surface of the other panel element further includes a groove arranged to receive the projection when the panel elements are turned to said position in which the profiled lateral edge surfaces face one another, wherein each panel element includes a pair of side surfaces intersected by the respective profiled lateral edge surface, each bearing surface extending non-perpendicularly from a side surface of its respective panel element, wherein the bearing surfaces of the respective panel elements form a recess therebetween when the panel elements are in said position in which the profiled lateral edge surfaces face each other.