Cargo transfer system and cargo transfer means for loading and o

Details Cargo transfer system and cargo transfer means for loading and o Cargo transfer system and cargo transfer means for loading and o

1991-07-29

1993-12-21

Bucci, David A.

Material or article handling

Marine loading or unloading system

Marine vessel to/from shore

4141408, 4141417, B63B 2716

Patent

active

052717011

DESCRIPTION:

BRIEF SUMMARY
Hitherto it has been usual to employ a fork lift truck on the quay for a transportation of cargo to and from a side port opening of a ship and for the transfer of cargo from the quay to a reloading platform on board the ship. With such a loading system, the fork lift trucks during driving must effect considerable swing movements at the same time as it is driven to and from on the quay, with and without cargo, in addition to the lifting and lowering of the loading forks in connection with the handling of the cargo. In order to achieve high loading and unloading capacity, the use of a large number of fork lift trucks is required. As a consequence of the high speed of driving and beyond that the large activity and limited view, complications can easily occur with interruption in the operation of the loading trucks on the quay and corresponding interruption in the handling of cargo on board the ship.
Alternatively, a stationarily arranged conveyor can be employed on the quay for the transportation of cargo to or from the ship and a fork lift truck for the transfer of cargo to and from the delivery location of the reloading platform from and to the conveyor on the quay. An advantage of such a system is that effective transportation of cargo on the conveyor on the quay can be achieved, for example between a warehouse and an unloading position on the quay, mainly with straight line movements, without particular transportation complications. In addition, a buffer zone can be readily achieved at the discharge position, so that there is constantly present there cargo availability for further transporation, independent of the loading and unloading operations. By use of fork lift trucks in connection with such a stationarily arranged conveyor there is obtained in itself a simple cargo transfer between quay and ship. By reason of the necessary driving pattern of the fork lift truck with relatively small drive lengths, but with associated frequent and partly sudden turning movements, and subsequent lifting and lowering movements, the fork lift truck or the fork lift trucks will constitute a vital, but readily vulnerable factor in the system, with the possibility for considerable complications in the transfer of cargo.
It is an object of the invention to provide an arrangement where a simpler cargo transfer can be attained with simpler operation.
It is another object of the invention to provide for a remote control of the transfer of cargo from a location at which cargo elevators and the like are operated.
It is another object of the invention to eliminate the need for the use of fork lift trucks on a quay for loading and unloading of cargo to and from a ship.
It is another object of the invention to provide a simple and effective transfer of cargo between a delivery location on a reloading platform and a conveyor on a quay.
It is another object of the invention to attain a more or less automatic handling of cargo for loading and unloading of ships.
It is another object of the invention to obtain as far as possible a rectilinear movement pattern for cargo in order to be able to obtain a reliable and damage free transfer system.
It is another object of the invention to reduce the number of handlings for the automatic handling of cargo during loading and unloading of a ship.
Briefly, the invention provides a transfer system for transferring cargo between a ship and a quay.
In one embodiment, the ship is provided with a side port opening, a reloading platform extending through the opening and a cargo elevator which communicates with the platform for conveying cargo therebetween. In addition, the quay is provided with a conveyor for transporting cargo.
The transfer system includes a transfer platform having at least one conveyor, and preferably two conveyors for transporting cargo horizontally, a first support member for securement to a ship, a second support member for mounting on the quay, guide means pivotally connected to and between the support members and connected to the transfer platform for guiding the transfer plat

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