Collapsible garage door
AssigneeChamberlain Manufacturing Corporation
InventorsKazuo Tsunemura, Kiyoshi Iha, Anthony T. Janiszewski
Life of this patent
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Abstract
An improved sectional overhead garage door with an integral automatic opener and closer which comprises a plurality of horizontal sections which are hinged together on opposite sides in alternate fashion and wherein the panels are made strong and light by providing parallel sheets of plastic aluminum or steel which are held along the edges with aluminum extrusions and where the hollow insides of the panels are filled with foam to provide rigidity and strength. The door as it is opened folds up like an accordian with adjacent sections folding back upon themselves so that a very compact unit is provided.
Claims6
A collapsible door comprising, a frame, a plurality of horizontal extending panels joined edge-wise by hinges which are mounted alternately on the front and back of the door so that it can fold similar to an accordian, a pair of channel-shaped rails mounted on opposite edges of the door and having vertical portions and smaller horizontal portions joined by curved portions, rollers mounted on the ends of certain of said panels and received in said rails, and guide pins mounted on the ends of certain of said panels and adapted to slide on said pair of rails outside of the channels, including a first curved rail mounted on said frame above said door and adapted to engage the guide pins on said panels to deflect them so that they fold as an accordian when the door is opened, including a second curved rail mounted on said frame above said door and adapted to engage the guide pins on the upper one of said panels to invert it 180 degress from its position when the door is closed, wherein said second curved rail has an end closely adjacent said channel-shaped rail, and wherein said rollers are mounted on the second and fourth panels from the top of the door when it is closed.
Dependencies are inferred from the claim text.