Improved locking device for bird/animal cage

E - Fixed Constructions – 05 – C

Patent

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Details

E05C 1/04 (2006.01) A01K 31/02 (2006.01)

Patent

CA 2220619

A latch includes an angled bracket having a front flange and a rear flange, each flange defining a hole, a cylindrical bolt having a front end and a rear end with an orthogonal bolt handle located intermediate of the front and rear ends, and a coil spring. The angled bracket includes at least two substantially orthogonal contiguous sides which extend from the front flange to the rear flange where these sides contain a substantially U-shaped slot, a portion of which lies on one of the sides and a portion of which lies on the other side. The bolt is arranged relative to the angled bracket such that the bolt handle extends through the slot and the ends of the bolt extend through the respective holes in the flanges. The spring is arranged coaxial to the bolt and biases the bolt forward to a latched position. In order to move the bolt to the unlatched position, the bolt must be both rotated and translated for the bolt handle to move through the U-shaped slot. The substantially U-shaped slot is preferably formed with an additional forward bend so that the bolt must be translated, rotated, and translated again to be moved from the latched position to an unlatched position. The angled bracket is preferably formed with five sides and is provided with mounting holes for attaching it to a cage. The disclosed bolt is formed as a stepped cylinder to provide a point of annular engagement with the spring.

La présente invention a pour objet un verrou constitué d'un support en U avec joue avant et joue arrière, celles-ci étant percées d'un trou traversé par les extrémités avant et arrière d'un pêne cylindrique pourvu d'un bouton de manoeuvre orthogonal situé à mi-chemin entre les extrémités avant et arrière et d'un ressort hélicoïdal. Une fente en forme de U est pratiquée sur deux des côtés contiguës du support, entre les joues avant et arrière, les deux parties de la fente se trouvant sur l'un et sur l'autre des deux côtés contiguës. Le pêne est disposé dans le support en U de telle sorte que le bouton de manoeuvre se trouve en saillie à travers la fente en U, et que les extrémités du pêne passent à travers les trous pratiqués dans les joues du support. Le ressort hélicoïdal et le pêne sont en montage coaxial, le pêne étant maintenu en position de blocage par l'action du ressort. L'ouverture par retrait du pêne s'obtient par rotation et translation combinées du pêne, ce qui autorise le déplacement du bouton de manoeuvre dans la fente en U. La fente en U comporte, de préférence, une patte vers l'avant permettant un mouvement de translation, rotation et translation à nouveau pour faire passer le bouton de commande de la position de blocage à la position de déblocage.

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