NZ592361A - A roller door that can be more tightly rolled due to a hinge allowing greater pivoting between door panels - Google Patents

Abstract

Disclosed is a hinge assembly for a roller door allowing a tighter roll to be formed that uses less volume. The hinge assembly comprises a hinge member, first and second panels and at least one retainer. The hinge member hingedly interconnects the first and second panels to one another to allow relative pivoting movement of the panels with respect to each other. The first and second panels are each elongate and comprise first and second curved hinge elements at respective first and second edges of each panel, with one of the curved hinge elements curving in a first direction and the other curved hinge element curving in a second direction. The hinge member is elongate and has opposing inner and outer surfaces, opposing first and second edges and opposing first and second ends. The hinge member also comprises a first curved slot located towards the second edge for receiving the first curved element of the first panel and a second curved slot located towards the first edge for receiving the second curved hinge element of the second panel. The hinge member also comprises a coupling portion at least one of the first and second ends, the retainer configured to be coupled in one of the coupling portions so as to retain the curved hinge elements of the panels in respective first and second curved slots of the hinge member. The first slot has an opening that defines an abutment portion for the first panel to abut when the first curved hinge element is rotated partially out of the first curved slot.