초록 ▼

A multi-section folding door includes first and second sets of vertically aligned panels with the panels in each set coupled together in an edge overlapping manner. Each of the panels is suspended from a support bracket attached to the panel\s upper edge, with each of the brackets coupled to and sus

A multi-section folding door includes first and second sets of vertically aligned panels with the panels in each set coupled together in an edge overlapping manner. Each of the panels is suspended from a support bracket attached to the panel\s upper edge, with each of the brackets coupled to and suspended from a track by means of a respective trolley. A drive arrangement displaces the trolleys permitting the first and second sets of panels to be displaced toward or away from each other in closing or opening the folding door relative to an opening in a wall. Attached to an upper edge of each panel is an elongated flexible loop which is inserted in a lower slot of a respective support bracket along the length thereof. An elongated cord comprised of a hard material is inserted in the loop and positioned along the length thereof to maintain the loop securely coupled to and suspended from the support bracket. Breakaway coupling is provided along the full length of the overlapping edges of adjacent panels while the outer edges of the two end panels are each coupled in a sealed manner to a respective side frame. A sweeper strip extends from the lower edge of the panel and engages the floor to form a seal therewith. Each panel preferably includes an intermediate insulating layer, with the folding door particularly adapted for low temperature applications such as in freezers.

대표청구항 ▼

A folding door comprising: first and second side frames disposed adjacent to respective lateral edges of an opening in a wall; a header assembly disposed adjacent to an upper edge of and extending across the opening and coupled to respective upper portions of said first and second side frames; a sup

A folding door comprising: first and second side frames disposed adjacent to respective lateral edges of an opening in a wall; a header assembly disposed adjacent to an upper edge of and extending across the opening and coupled to respective upper portions of said first and second side frames; a support structure coupled to and disposed adjacent to said header assembly; a plurality of trolleys coupled to and suspended from said support structure; a plurality of support arms each coupled to and suspended from a respective trolley, wherein each of said support arms includes an elongated slot extending the length of said support arm along a lower portion thereof; a plurality of flexible panels; a plurality of flexible hanger means for attaching each of said flexible panels to a respective one of said support arms, wherein each of said flexible hanger means is disposed within a support arm and extends through the elongated slot therein and is securely coupled to an upper edge of a flexible panel, and wherein each of said hanger means includes a flexible loop coupled to opposed surfaces of a panel adjacent an upper edge thereof and extending into a support arm through the slot therein, said hanger means further including an elongated member disposed within said support arm and inserted through said flexible loop; breakaway coupling means for coupling two panels in a sealed, continuous manner along adjacent edges thereof while allowing two coupled panels to be detached from one another when subjected to large forces incident thereon; and drive means coupled to said trolleys for linearly displacing said trolleys along said support structure is opening and closing said folding door.