Brake triggering device

B - Operations – Transporting – 66 – B

Patent

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Details

B66B 5/26 (2006.01) B66B 5/22 (2006.01)

Patent

CA 2220629

The present invention relates to a brake triggering device for a lift cage, by means of which brake devices (13) disposed at both sides at a cage structure (1) are actuated by the limiter cable (11) and entraining lever (10) by way of a trigger element (2). According to the invention a small upward movement of the entraining lever (10) releases, by way of a Bowden pull (9) and a trigger mechanism (4), a trigger element (2) which is biassed by spring force and which actuates the two brake devices (13) simultaneously. The trigger element (2) is constructed as a torsion spring. This brake trigger device is distinguished by a very short reaction time. (Fig. 1)

L'objet de la présente invention est un dispositif de déclenchement de parachute de cabine d'ascenseur, grâce auquel les dispositifs parachute (13) situés de chaque côté d'une cabine d'ascenseur (1) sont actionnés par un câble limiteur (11) et par un levier d'entraînement (10) au moyen d'un élément de déclenchement (2). Selon l'invention, un léger mouvement du levier d'entraînement (10) vers le haut a pour effet de dégager, grâce à une commande Bowden (9) et un mécanisme de déclenchement (4), un élément déclencheur (2) qui est soumis à un effet de ressort et qui actionne simultanément les deux dispositifs parachute (13). L'élément déclencheur (2) est un ressort de torsion. Ce dispositif de déclenchement est caractérisé par un très court temps de réaction (figure 1).

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