Seal for a dock leveler lip

E - Fixed Constructions – 01 – D

Patent

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Details

E01D 1/00 (2006.01) B65G 69/00 (2006.01) B65G 69/28 (2006.01)

Patent

CA 2452676

A dock leveler (10) that includes a pivotal ramp (30) with a moveable lip (26) for loading and unloading a truck (14) at a loading dock (12) also includes a lip seal (20) that helps seal an air gap along the side edges of the lip (26). When the back end (24) of the truck (14) is up against a dock bumper (28), the lip (26) helps block off an air gap that spans an area generally defined by the rear edge (24) of the truck (14), an inside edge of the bumper (28), and the side edge of the lip (26) that generally faces the bumper (28). When the lip (26) moves from its extended, operative position to its stored position, the lip forces the lip seal (20) to move underneath the deck (30). The lip seal (20) is biased to an operative, sealing position by a spring (78) or a counterweight (94), so as the lip (26) extends to its operative position, so does the lip seal (20).

L'invention concerne un appareil de mise à niveau qui comprend une rampe pivotante munie d'une lèvre mobile pour charger et décharger un camion au niveau d'une plate-forme de chargement. L'appareil de mise à niveau comprend également un joint à lèvre qui ferme de manière étanche un écartement le long des bords latéraux de la lèvre. Lorsque l'extrémité arrière du camion s'élève pour venir contre un butoir de quai, la lèvre contribue à bloquer un écartement qui occupe une zone généralement délimitée par le bord arrière du camion, un bord intérieur du butoir, et le bord latéral du butoir de la lèvre généralement affronté au butoir. Lorsque la lèvre se déplace de sa position de travail sortie à sa position rentrée, la lèvre force le joint à lèvre à se déplacer sous le pont. Le joint à lèvre est incliné vers une position active de fermeture par un ressort ou un contrepoids qui déploie la lèvre vers sa position de travail entraînant ainsi le joint à lèvre.

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