Safety door assembly, in particular a sterile door

E - Fixed Constructions – 06 – B

Patent

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Details

E06B 7/23 (2006.01)

Patent

CA 2236536

The invention concerns a safety door assembly (1) for delimiting safety rooms and sterile rooms, the door assembly having a door frame (2) and a single-leaf door (3). The door leaf (3) carries at its edge, facing the frame (2), a peripheral hose-type seal (8) of rubber of plastics which forms part of the sealing system (5), is sealingly connected to the door leaf (3) and can be inflated with a predetermined sealing force against an autogenic restoring force. The frame surface facing the door leaf (3) takes the form of a flat, non-deformable sealing counterface (7), against which the inflated hose-type seal (6) is sealingly supported when the door leaf (3) is closed and the sealing system (5) switched on. The sealing system (5) is automatically controlled and arranged such that the sealing force additionally locks the closed door leaf (3) securely against the frame (2) via frictional engagement and is unlocked in a pressure-relief time interval of a few seconds.

L'invention concerne une porte de sécurité (1) servant à délimiter des zones de sécurité et des zones stériles, qui comprend un châssis (2) et un seul vantail (3). Ce dernier (3) porte dans son bord qui fait face au châssis (2), une garniture d'étanchéité tubulaire (8) périphérique faisant partie du système d'étanchéité (5), en caoutchouc ou en matière plastique, raccordée de manière hermétique au vantail (3) et qui peut être gonflée avec une force d'étanchéité prédéfinie à l'encontre d'une force de rappel autogène. La surface du châssis qui fait face au vantail (3) se présente sous forme de contre-surface d'étanchéité (7) plane, indéformable, contre laquelle la garniture d'étanchéité tubulaire (6) s'appuie de manière hermétique lorsque le vantail (3) est fermé et que le système d'étanchéité (5) est enclenché. Ledit système d'étanchéité (5) est à commande automatique et est disposé de sorte que la force d'étanchéité verrouille de manière fiable en outre le vantail (3) fermé contre le châssis (2) par fermeture par friction et le débloque après un intervalle-temps de décompression de quelques secondes.

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