Release mechanism for industrial doors and a method for...

E - Fixed Constructions – 06 – B

Patent

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Details

E06B 9/58 (2006.01) E05D 15/16 (2006.01)

Patent

CA 2256366

An improved release mechanism for use in combination with an industrial door and a method for providing separation of an industrial door, which includes an extension member extending across the doorway opening when the door is in its doorway blocking positions, the releasing mechanism including a roller mounted for movement with the extension member, and a track including a guideway for receiving the roller and guiding it during normal door operation, the roller and track being movable relative to each other upon application of a breakaway force to the extension member, thereby allowing the roller to escape from the track when a breakaway force is applied to the extension member, the breakaway force being defined as a force that has a component perpendicular to the plane of the door above a certain magnitude.

La présente invention concerne un perfectionnement du mécanisme de déboîtement destiné à une porte industrielle ainsi qu'un procédé de séparation approprié. Cette porte comprend un panneau faisant toute la largeur de l'entrée de porte lorsque la porte est dans l'une des positions d'obstruction de l'entrée de porte. Le mécanisme de déboîtement comporte un galet monté de façon à accompagner le déplacement d'un panneau. Un rail définissant une voie de guidage accueille le galet et guide ce dernier lors du mouvement normal de la porte. Le rail et le galet sont mobiles l'un par rapport à l'autre sous l'effet d'un effort de déboîtement appliqué au panneau de sorte que le galet de se déboîte du rail lorsqu'un effort de déboîtement s'applique au panneau. Une telle force de déboîtement se définit comme une force dont une composante est perpendiculaire au plan de la porte au-dessus d'une certaine amplitude.

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