Self latching device

E - Fixed Constructions – 05 – C

Patent

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Details

E05C 1/16 (2006.01) E05B 47/00 (2006.01) E05C 17/48 (2006.01)

Patent

CA 2556741

A self latching device for self-latching a sliding closure such as a window sash. The device includes a latch member (17) which is moveable between a latching position and a non-latching position. The latch member (17) when in the latching position is engaged with a strike (42). A biasing element (23) biases the latch member (17) into one of the latching and non-latching positions. A magnetic element (43) is provided for moving the latch member (17) into the other of the latching and non-latching positions. In one form the magnetic element (43) is associated with the strike (42) and a magnet element (33) is associated with the latch member (17). The magnets are preferably permanent magnets (33 and 43). A user accessible slider (26) coupled by a coupler (34, 35) to magnet slider (31) enables the magnet element (33) to be temporarily moved away from the magnetic element (43) to enable the latch member (17) to retract from the strike (42).

L'invention porte sur un dispositif à blocage automatique permettant de bloquer automatiquement Aune fermeture coulissante telle qu'un châssis de fenêtre. Le dispositif comprend un élément de blocage (17) pouvant se déplacer entre une position de blocage et une position de déblocage. L'élément de blocage (17), en position de blocage, est en contact avec une gâche (42). Un élément de sollicitation (23) sollicite l'élément de blocage (17) dans l'une des positions de blocage ou de non blocage. Un élément magnétique (43) permet le déplacement de l'élément de blocage (17) dans l'autre des positions de blocage ou de non blocage. Dans une autre variante, l'élément magnétique (43) est associé à la gâche (42) et un aimant (33) est associé à l'élément de blocage (17). Les aimants sont de préférence des aimants permanents (33 et 43). Un dispositif coulissant (26) accessible à un utilisateur et couplé par un coupleur (34, 35) à un élément coulissant magnétique (31) permet à l'aimant (33) de s'écarter temporairement de l'élément magnétique (43) pour que l'élément de blocage (17) se rétracte de la gâche (42).

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