Grappler guidance system for a gantry crane

H - Electricity – 04 – N

Patent

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Details

H04N 7/18 (2006.01) B66C 13/46 (2006.01) B66C 1/66 (2006.01)

Patent

CA 2327334

In a gantry crane (10) having a movable grappler (45) adapted for lifting standard containers (40), a system is provided to aid in positioning the grappler relative to the container. The grappler is equipped with at least two corner video devices (100) located near the corners of the grappler for viewing the corner locking holes (60) of a container below. An additional distal video device (105) can also be mounted to a side of the grappler opposite the cab to view the relative orientation of a side of the container relative to the side of the grappler. A plurality of alignment sensors (140) can also be mounted to respective sides of the grappler to detect the relative position of the corresponding sides of the container vertically below. A pair of height (120) sensors can also be mounted to the grappler to measure the height of the grappler above the upper surface of the container.

Sur un pont roulant à portique (10) équipé d'une potence mobile (45) pour le levage de conteneurs standard (40), un système facilite le positionnement de cette potence sur le conteneur. La potence comporte au moins deux dispositifs vidéo d'angle (100) situés à proximités de ses coins qui permettent d'observer les niches de verrouillage (60) du conteneur situé en dessous. Un dispositif vidéo distal (105) supplémentaire peut également être monté sur le côté de la potence opposé à la cabine et permet d'observer l'orientation relative d'un flanc du conteneur par rapport au côté de la potence. Plusieurs capteurs d'alignement (140) peuvent être implantés sur les côtés de la potence et détectent la position relative des flancs correspondants du conteneur situé à la verticale en dessous. Une paire de capteurs de hauteur (120) peut également être montée sur la potence et mesure la distance qui sépare cette dernière du plan supérieur du conteneur.

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