Ships – Building – Freighters
Patent
1995-11-02
1996-10-08
Avila, Stephen
Ships
Building
Freighters
B63B 2500
Patent
active
055620620
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a shelf system, preferably a pallet shelf system, in which goods (products) of the most various kinds, especially tropical and subtropical fruit, that require air cooling can be stored and transported in a refrigerator ship.
The object of the invention is to create a pallet shelf system with a high carrying capacity of goods on pallets for/in a refrigerator ship that produces optimal air conduction and low-loss air cooling in its bays of shelves, enables rational loading and unloading of the bays of shelves, and positionally fixes the pallets and goods in the bays of shelves and keeps them secured against shifting and damage when the ship is in motion.
This object is attained by the characteristics of the body of claim 1.
The appended dependent claims recite embodiment characteristics, which are advantageous and recommended further feature of the aforementioned means of attaining the object, as well as the additional object of being able to mount the shelf system in the hull of the ship with maximal avoidance of cold bridges in the ship insulation, to embody it so that it is stabilized against ship motions, and to equip it with means that move the pallets with goods gently and in a positionally fixed manner, transport them into and out of the refrigerator ship, and load and unload the bays of shelves, in a simple manner with safe function and a rational mode of operation in the form of existing components and additional parts.
The pallet shelf system according to the invention is designed among other purposes for being built into refrigerator ships that are provided for transporting air-cooled goods of the most various types, especially tropical and subtropical fruit.
This pallet shelf system is composed of a number of bays, disposed on both sides of a shelving corridor inside the hull and joined to the hull of the ship and to partition walls (bulkheads); the shelf bays on either side (to the left and right) of the shelving corridor each form one shelf block.
These bays are formed of upright shelf supports and horizontal bearers and supporting and running guides disposed in tiers; these guides extend from the shelving corridor to the side wall of the hull, and they receive a channel vehicle (satellite car) for transporting the pallets with the goods into the bays and also carry the set-down pallets with goods.
Each tier of the bays is assigned one air duct adjacent to the side wall of the hull, and an air lock is provided on the end wall toward the corridor; a recirculation of the air cooling is effected by means of the air duct and the supporting and running guides and by the air lock in every tier, and hence the cooling of the goods is carried out in a self-contained region, which assures optimal, low-loss cooling and is space-saving in terms of height.
The bays facing one another on either side of the corridor each communicate with each other via a bridge at the top, which serves to stabilize the left and right blocks of shelves, which each comprise a plurality of bays. These bridges are independent of or are detached from the ship deck and secured to the shelf supports, so that a sagging, loaded ship deck does not influence them.
The gangway for the shelving vehicle that runs in the corridor is sunken in the hull, and this shelving vehicle, because of positive-engagement guide and transmission means, such as toothed racks and gear wheels, mounted in the shelf gangway and under the bridges, runs without being vulnerable to ship motions (tilting forces) that act on the shelving vehicle and to external influences for moisture or the like. Moreover, as a result of this guide transmission, the shelving vehicle reaches its two terminal positions very rapidly.
Because the gangway for the shelving vehicle is sunken in the hull, the minimum structural height of the shelving vehicle is reduced, and at the same time a more favorable center of gravity for the ship whose deck is loaded with goods is attained, so that the ship need not be built substantially higher.
The supporting and runnin
REFERENCES:
patent: 3537414 (1970-11-01), Goldman
patent: 3880299 (1975-04-01), Zollinger et al.
patent: 4633799 (1987-01-01), Hey
patent: 5107781 (1992-04-01), Ebeling et al.
Avila Stephen
Westfalia-WST-Systemtechnik GmbH & Co. KG
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