Ship docking vessel

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 35/66 (2006.01) B63H 25/42 (2006.01)

Patent

CA 2207347

An improved ship docking vessel is provided that has a substantially flat, elliptical bottom having a large beam-to-length ratio to provide a shallow draft. In addition, the vessel of the present invention is provided with two Z-drives disposed diagonally opposite the longitudinal axis of the bottom. Each of the drives is adapted to rotate 360° about its central shaft. Because there is no keel, the vessel is provided with a pair of skegs disposed fore and aft along the center line of the longitudinal axis of the substantially flat bottom. The skegs are disposed outside the Z-drives and provide for enhanced maneuverability and increased directional stability of the vessel. In a preferred embodiment, the flat bottom has curved ends and parallel sides, and the entire flat bottom is longitudinally and transversely symmetrical. The hull includes a substantially uniform flare between the flat bottom and the flat bumper portion to facilitate movement of the vessel in any direction and to improve vessel stability. The skegs extend below the drives to protect them from bottoming out and to act as support for the hull when the vessel is dry-docked. In an alternative embodiment, a cycloidal drive system may be used instead of the Z-drive system.

Embarcation d'accostage améliorée pour navires, comprenant une carène essentiellement plate et elliptique au rapport largeur/longueur élevé, qui permet d'obtenir un faible tirant d'eau, et deux systèmes de transmission en Z, diagonalement opposés à l'axe longitudinal du fond. Chacune des transmissions peut pivoter sur 360 degrés autour d'un arbre central. Comme l'embarcation ne possède pas de quille, elle est dotée d'une paire d'ailerons situés à l'avant et à l'arrière dans le sens de l'axe longitudinal. Les ailerons sont disposés à l'extérieur des transmissions en Z et procurent une maniabilité et une stabilité de route accrue. Dans une version privilégiée, le fond plat présente des extrémités recourbées et des murailles parallèles, et il est longitudinalement et transversalement symétrique. La coque présente un dévers essentiellement uniforme entre le fond et la section d'amortissement plate, ce qui facilite les déplacements de l'embarcation dans toutes les directions et en améliore la stabilité. Les ailerons se prolongent sous les transmissions afin de les empêcher de heurter le fond et servent de supports pour la coque lorsque l'embarcation est en cale sèche. Dans une autre version, un système de transmission verticale peut être utilisé au lieu du système en Z.

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