Safety device for motorized access passageways

E - Fixed Constructions – 05 – F

Patent

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E05F 15/14 (2006.01)

Patent

CA 2610058

A safety device for motorized pedestrian access passage- ways, comprising a movement and supporting mechanism of an oscillating access shutter, which includes an electric motor (30) for activating the shutter, and a mechanical control system, which uses a series of levers (12, 13, 14, 14'), associated with respective elastic elements (22, 25), and a pushing element (31), suitable for allowing the automatic opening of the passageway, in the case of a lack of power supply, due, for example, to an electric black-out; in particular, the position in which the shutter almost completely closes the access passageway is an unstable equilibrium position, which is maintained thanks to the action of an electric motor (30), with an incorporated reducer, which contrasts the opening movement of the shutter, and the pushing element (31), which intervenes in the opening, when the shutter is positioned for completely closing the passageway.

L'invention concerne un dispositif de sécurité destiné à équiper des couloirs d'accès de piétons motorisés. Le dispositif de sécurité comprend un mécanisme de mouvement et de support d'un obturateur d'accès oscillant muni d'un moteur électrique (30) pour activer l'obturateur et d'un système de commande mécanique utilisant une série de leviers (12, 13, 14, 14') associés à des éléments élastiques respectifs (22, 25); et un élément d'impulsion (31) permettant l'ouverture automatique du couloir, en cas d'absence d'alimentation électrique due, par exemple, à une panne électrique. En particulier, la position dans laquelle l'obturateur ferme presque complètement le couloir d'accès est une position d'équilibre instable maintenue grâce à l'action d'un moteur électrique (30) intégrant un réducteur qui varie le mouvement d'ouverture de l'obturateur; et à l'action de l'élément de poussée (31) qui agit dans l'ouverture lorsque l'obturateur est placé de façon à fermer complètement le passage.

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