A folding shutter comprising a frame with at least one linear guide rail (6) and a carriage (9) mounted to the linear guide rail so that it can be moved in the first direction extending between a first and a second end of the guide rail, and at least two folding shutter elements (2, 3) where one folding shutter element (3) is attached to the carriage (9) via a first (13) and a second bracket part (18) at- tached to the carriage (9), so that the first (2) and the second shutter element (3) folds when the carriage moves away from the first end of the guide rail (6), and wherein each of a first and a second peg (19, 20) is arranged on one bracket part, and extending into engagement with a first (14) and a second slot (15, 16, 17) respectively arranged on the other bracket part, and where the first slot (14) extends along the guide rail (6) when the carriage (9) is positioned at the first end of the guide rail (6), and the second slot is U-shaped having two diverging slot leg portions (15, 16) being connected via a bended slot portion (17), and where the U-shaped slot is configured so that the second peg (20) is posi- tioned in the U-shaped slot at the end of a first slot leg portion 16 when the carriage (9) is at the first end of the guide rail (6), and moves from the end of the first slot leg portion (16) via the bended slot portion (17) and to the second slot leg portion (15) when the carriage (9) is moved to the second end of the guide rail.
E04F 10/10 - Pare-soleil; Vélums faits de plusieurs parties rigides identiques, p.ex. des plaques, des lamelles repliables
E05D 15/26 - Suspensions pour battants pour battants repliables
E06B 9/06 - Volets, grillages amovibles ou autres dispositifs de fermeture de sécurité, p.ex. contre l'effraction rabattables ou repliables, p.ex. du type à soufflet ou en accordéon
The acoustic shutter assembly (1) includes at least one window pane (2, 3) arranged in a frame (4). At least one ventilation duct (7) is arranged in the frame between an outer ventilation opening (8) and an inner ventilation opening (9), extending between a first layer of sound absorbing material arranged at an inside (5) and a second layer of sound absorbing material arranged at an outside. A number of acoustic reflectors (12) in the form of plate material are arranged between the first and second layers of sound absorbing material so that the ventilation duct is separated into a number of respective ventilation channels (13) formed between the acoustic reflectors. Each ventilation channel changes direction at least once between the outer ventilation opening and the inner ventilation opening, thereby at least substantially blocking any linear path from the outer ventilation opening to the inner ventilation opening.
E06B 7/10 - Aménagements particuliers ou dispositions en rapport avec les portes ou fenêtres pour assurer la ventilation, p.ex. à travers des doubles fenêtres; Aménagement de rosaces de ventilation par structure particulière des éléments de châssis
E06B 9/04 - Volets, grillages amovibles ou autres dispositifs de fermeture de sécurité, p.ex. contre l'effraction du type à battants, p.ex. tournants ou à glissière
F24F 13/18 - Organes de réglage de l'écoulement d'air, p.ex. persiennes, grilles, volets ou plaques directrices spécialement adaptés pour être insérés dans des panneaux plats, p.ex. dans une porte ou une vitre de fenêtre
F24F 13/24 - Moyens pour éviter ou supprimer le bruit
G10K 11/16 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
The present invention relates to a lamella blind system comprising at least one lamella element having: a screen body made of a membrane material; a first rotatable mount with a first clamp engaging a first end of the screen body; and a second rotatable mount with a second clamp engaging a second end of the screen body; wherein the screen body is clamped between the first and second rotatable mounts; wherein the screen body is loaded with a pre-determined tension applied in an axial direction parallel to the axis of rotation; and wherein the lamella element is rotatable about an axis of rotation defined by the first and second rotatable mounts; a first support structure supporting the first rotatable mount; a second support structure supporting the second rotatable mount; and a drive mechanism for controlling the rotational position of the at least one lamella element, wherein the drive mechanism is a single-ended drive mechanism acting on only one of the first and second rotatable mounts of the at least one lamella element.
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