Method and apparatus for lifting deck panels carrying cars/trucks on a multi-deck pure car/truck carrier (pctc)

Abstract

Method and apparatus for lowering / lifting a deck panel (11) carrying a car / truck in a cargo hold on a pure car / truck carrier (PCTC) using at least one Lifting device (1) of a lifting device that is reversibly raiseable and / or extendable and / or liftable and / or lowerable in order to raise or lower the Deck panels (11). Said lifting means (9, 10, 15) are applied at a number of options calculated specifically for each cargo compartment (11), depending on which load-bearing panel is to be lifted / lowered. The lifting means (9, 10, 15) are controlled to provide a distributed lift pattern from a rest position to below the deck panel (11) whereby by applying lift forces thereon in an independently controllable pattern Whereas the same deck panel is lifted or lowered so that said deck panel (11) in the unloaded state is lowered or lifted without deformation, or deformed in as predictable a manner as possible.

Description

technical field [0001] The present invention relates to a method and apparatus in an intercontinental car and truck carrier for transporting cars and trucks of different sizes from their manufacturers, with few exceptions, from a long abroad across at least one ocean. More specifically, the method involves the use of lifting means applied below deck panels (deckpanels) arranged in the cargo holds of such ships, which are reversibly liftable and / or extendable and / or liftable and / or lowerable to raise or lower the deck panel to different lockable height positions to allow loading of loads of different sizes. [0002] In order to do this in an economical manner, these transport ships have been carefully optimized and have thus become very large and are today limited in size mainly by the routes they travel at sea, for example through the waterways of Panama. And indeed, the widening of this waterway was a consequence of the need for wider ships for this type of trade. On such ...

AI Technical Summary

Problems solved by technology

However, previously known trucks of this type exert their lifting or supporting forces at the area of ​​the central balance point on the underside of each panel, thus causing the above-mentioned negative effects and problems associated with undesired deformations

Also, when the ship is not fully in the waves, problems arise due to deck panels getting stuck due to displacement between them and the hull

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