A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BIFOLD DOOR
A bifold door includes an upper panel including a top edge disposed proximate an anchor and a lower edge disposed distal of the anchor. The upper hinge, connecting the anchor to the top edge, permits rotation of the top edge of the upper panel but prevents elevation of the top edge of the upper panel. A first actuator, connected to the anchor and the upper panel, lifts the lower edge of the upper panel upwardly and outwardly, and effects lifting of the upper panel. A lower panel, separated from the upper panel, includes an upper edge disposed proximate the lower edge and a bottom edge disposed distal of the lower edge. A second actuator, connected to the upper panel and to the lower panel, lifts the upper edge of the lower panel upwardly and outwardly, and to effect lifting of the lower panel.
BIFOLD DOOR
A bifold door includes an upper panel including a top edge disposed proximate an anchor and a lower edge disposed distal of the anchor. The upper hinge, connecting the anchor to the top edge, permits rotation of the top edge of the upper panel but prevents elevation of the top edge of the upper panel. A first actuator, connected to the anchor and the upper panel, lifts the lower edge of the upper panel upwardly and outwardly, and effects lifting of the upper panel. A lower panel, separated from the upper panel, includes an upper edge disposed proximate the lower edge and a bottom edge disposed distal of the lower edge. A second actuator, connected to the upper panel and to the lower panel, lifts the upper edge of the lower panel upwardly and outwardly, and to effect lifting of the lower panel.
BIFOLD DOOR
GARRY MATTHEW (author) / VALLER GREGORY OLIVER (author)
2023-12-21
Patent
Electronic Resource
English