Elastic means for rolling up a roller curtain

E - Fixed Constructions – 06 – B

Patent

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Details

E06B 9/56 (2006.01) E06B 9/60 (2006.01) E06B 9/68 (2006.01)

Patent

CA 2256569

Elastic means for rolling up a roller curtain include a plurality of springs (26,27,28) fastened rigidly to a common support (15) connected to a shaft (2) and with respective support and constraint elements (36,37,38) which are geometrically coupled to the roller (19). A device for connecting the springs to a stationary frame (35) of the curtain (20) reduces the number of springs torsional turns with respect to the number of turns of the roller (19) by interposition of a speed reducer between the shaft (2), to which the springs are fastened, the stationary frame (35) and the roller (19). The shaft (2) end is located closer to the most external support and constraint element (36) and its extremity has a disc (11) mounted thereto. The coupling device together with the springs (50), their supports (15,36,37,38), the shaft (2) and an external support cylindrical body (6) form a compact assembly, which is introduced into one head of the roller (19). The other head of the roller (19) features a cap (12), rotatably fastened to a cylindrical section of a support (13) which is locked to the stationary frame (35) by a tang (14). The geometrical coupling between the shaft (2) and the spring supports (15,36,37,38) allows for easy and quick relocation of the roll up device on each side of the window to which the roller curtain is to be mounted.

Un moyen élastique d'enroulement d'un rideau à rouleau comprend une pluralité de ressorts (26, 27, 28) fixés de manière rigide à un support commun (15) relié à un axe (2) et doté d'éléments de support et de contrainte respectifs (36, 37, 38) couplés géométriquement au rouleau (19). Un dispositif de raccord des ressorts à un cadre fixe (35) du rideau (20) réduit le nombre de tours de torsion des ressorts par rapport au nombre au nombre de tours du rouleau (19) par interposition d'un réducteur de vitesse entre l'axe (2), auquel les ressorts sont fixés, le cadre fixe (35) et le rouleau (19). L'extrémité de l'axe (2) est plus proche de l'élément de support et de contrainte (36) le plus à l'extérieur et sur son extrémité est monté un disque (11). Le dispositif d'accouplement ainsi que les ressorts (50), leurs supports (15, 36, 37, 38), l'axe (2) et le corps cylindrique (6) du support extérieur forment un ensemble compact, lequel est introduit dans une tête du rouleau (19). L'autre tête du rouleau (19) présente un capuchon (12) monté rotatif sur une partie cylindrique d'un support (13), lequel est verrouillé sur le cadre fixe (35) par une queue (14). L'accouplement géométrique entre l'axe (2) et les supports (15, 36, 37, 38) de ressorts permet de replacer facilement et rapidement le dispositif à enroulement sur chaque côté de la fenêtre sur laquelle est monté ledit rideau à rouleau.

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