Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A dual curtain closure system for covering a portal wherein each curtain (18, 38) has a length greater than the length of the lateral margins (12, 13) of the portal (11), a first end (19, 39) fixedly attached across the portal at an upper end thereof, and a second end (23, 43) folded back on itself to define an upwardly opening pocket (25, 45). An elongated rod (34, 35) is supported within each pocket. A first spindle (51) winds and unwinds the first curtain (18) and a second spindle (52) winds and unwinds the second curtain (38). A drive motor (55) is operable to simultaneously rotate the first and second spindles such that the upwardly opening pockets of the curtains are concomitantly raised or lowered. A predetermined distance between the rods is maintained as the pockets are raised or lowered, which facilitates sealing of the curtains to the lateral margins of the portal as the curtains are lowered.
A dual curtain closure system for covering a portal wherein each curtain (18, 38) has a length greater than the length of the lateral margins (12, 13) of the portal (11), a first end (19, 39) fixedly attached across the portal at an upper end thereof, and a second end (23, 43) folded back on itself to define an upwardly opening pocket (25, 45). An elongated rod (34, 35) is supported within each pocket. A first spindle (51) winds and unwinds the first curtain (18) and a second spindle (52) winds and unwinds the second curtain (38). A drive motor (55) is operable to simultaneously rotate the first and second spindles such that the upwardly opening pockets of the curtains are concomitantly raised or lowered. A predetermined distance between the rods is maintained as the pockets are raised or lowered, which facilitates sealing of the curtains to the lateral margins of the portal as the curtains are lowered.
ROLL-UP DUAL CURTAIN CLOSURE SYSTEM
CRIDER GRANT W (Autor:in)
25.04.2019
Patent
Elektronische Ressource
Englisch
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES