Locking shoe and mounting bracket for curl spring window...

E - Fixed Constructions – 05 – D

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E05D 13/00 (2006.01) E05D 15/16 (2006.01)

Patent

CA 2619267

A curl spring sash shoe cassette improves upon the suggestions of U.S. patents 5,353,548 and 5,463,793 by providing a mounting bracket that holds an uncurled length of the curl spring and is securely mounted on top of the shoe cassette to maintain an assembly of the shoe body, the curl spring, and the mount during shipment to a window manufacturer. The mount can receive two mounting screws to resist torque caused by curl springs and sash weight. The shoe is also improved to facilitate removal and reinsertion of sash pins into the tilt lock cams of the shoes and ensure that shoe body halves do not rotate relative to each other when sash tilting splays the body halves apart to lock them in a shoe channel.

Un boîtier de patin de fenêtre à ressort spiralé améliore les suggestions des brevets américains 5,353,548 et 5,463,793 en fournissant un support de montage qui retient une longueur non spiralée du ressort spiralé, et est monté de manière sécuritaire sur la partie supérieure du boîtier de patin pour maintenir un ensemble du corps du patin, le ressort spiralé et le dispositif de montage pendant l'expédition à un fabricant de fenêtre. Le dispositif de montage peut recevoir deux vis de montage pour résister au couple provoqué par des ressorts spiralés et un poids de fenêtre. Le patin est aussi amélioré afin de faciliter le retrait et la réinsertion des goupilles de fenêtre dans les cames de basculement à blocage des patins et d'assurer que les moitiés de corps de patin ne tournent pas l'une par rapport à l'autre si le basculement de la fenêtre sépare les moitiés de corps pour les verrouiller dans un passage de patin.

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