System and related methods for detecting a force profile...

E - Fixed Constructions – 05 – F

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E05F 15/00 (2006.01) E05F 15/16 (2006.01)

Patent

CA 2314901

An internal entrapment system (10) for a door (12) movable by a repeatable force includes a force generating device (68) for transferring the door (12) between a first and a second position. A trolley arm (34) connected between the force generating device (68) and the door (12) is continually strained during movement of the door (12). A sensor (50) mounted on the trolley arm (34) generates a signal (54) representative of the strain applied to the trolley arm (34). A processor (72) receives the strain signal (54) for comparison to a predetermined threshold, wherein if the strain signal (54) exceeds the predetermined threshold, the processor (72) at least stops the force generating device (68). A potentiometer (74) is coupled to the door (12) for determining a plurality of positional locations of the door (12) between the first and the second positions, wherein the processor (72) correlates the position of the door (12) with the strain signal (54) for use in comparison to the predetermined threshold.

L'invention concerne un système intérieur incorporé (10) conçu pour une porte (12) entraînée par une force pouvant être répétée. Ce mécanisme comporte un dispositif générateur de force (68) qui permet de déplacer la porte (12) entre une première position et une seconde position. Un bras de chariot (34) reliant ledit dispositif (68) et la porte (12) est mis continuellement sous contrainte durant le déplacement de ladite porte (12). Un capteur (50), monté sur le bras de chariot (34), produit un signal (54) représentatif de la contrainte appliquée audit bras (34). Un processeur (72) reçoit le signal de contrainte (54) aux fins de sa comparaison à un seuil prédéterminé. Si ledit signal (54) dépasse le seuil prédéterminé, le processeur (72) arrête au moins le dispositif générateur de force (68). Un potentiomètre ((74) est couplé à la porte (12) afin de déterminer une pluralité de positions de la porte (12) entre les première et seconde positions. Le potentiomètre (72) rapporte la position de la porte (12) au signal de contrainte (54) aux fins de sa comparaison avec le seuil prédéterminé.

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