Ship weight cargo loading and unloading system

A loading and unloading system which loads and unloads cargo between a wharf and a ship provided with an opening by means of a transport car which enters and leaves the ship via this opening, said system comprising:

• a rectangular lift table inside the ship to allow said transport car carrying cargo to board through said opening,
• means for raising and lowering said lift table disposed at least at the four corners of said table,
• a ramp which extends between said lift table and said wharf, said ramp having a base,
• means for supporting the base of said ramp on said lift table,
• lift cable means for moving said ramp up and down along said opening,
• tilt cable means for pivoting said ramp about said base,
• first detecting means having an output for detecting the tilt angle of said ramp,
• second detecting means having an output for detecting the horizontality of said lift table, and
• control means receiving said outputs from said first and second detecting means for controlling the action of said raising and lowering means so as to respectively maintain the tilt angle of said ramp and the horizontality of said lift table within set predetermined limits.

A loading and unloading system which loads and unloads cargo loaded on a pallet between a wharf and a ship provided with an opening, a deck above said opening and a hold below said opening, by means of a transport car which enters and leaves the ship via said opening, said system comprising:

• a rectangular lift table inside the ship to allow said transport car carrying cargo to board through said opening,
• means for raising and lowering said lift table disposed at least at the four corners of said table,
• a ramp which extends between said lift table and said wharf, said ramp having a base,
• means for supporting the base of said ramp on said lift table,
• first detecting means having an output for detecting the tilt angle of said ramp,
• second detecting means having an output for detecting the horizontality of said lift table,
• control means receiving said output from said first and second detecting means for controlling the action of said raising and lowering means so as to respectively maintain the tilt angle of said ramp and the horizontality of said lift table within set predetermined limits,
• an opening formed in said lift table which allows the passage of said pallet,
• a pair of pallet support means arranged in the lift table opening for supporting said pallet, said pallet support means being arranged facing each other such that they can be rotated downwards, and
• hydraulic cylinder means for rotating said pallet support means.

A loading and unloading system which loads and unloads cargo loaded on a pallet between a wharf and a ship provided with an opening, a deck above said opening and a hold below said opening, by means of a transport car which enters and leaves the ship via said opening, said system comprising:

• a rectangular lift table inside the ship to allow said transport car carrying cargo to board through said opening,
• means for raising and lowering said lift table disposed at least at the four corners of said table,
• a ramp which extends between said lift table and said wharf, said ramp having a base,
• means for supporting the base of said ramp on said lift table,
• first detecting means having an output for detecting the tilt angle of said ramp,
• second detecting means having an output for detecting the horizontality of said lift table,
• control means receiving the output from said first and second detecting means for controlling the action of said raising and lowering means so as to respectively maintain the tilt angle of said ramp and the horizontality of said lift table within set predetermined limits,
• an opening formed in said lift table which allows the passage of said pallet,
• a pair of pallet support means arranged in the lift table opening for supporting said pallet, said pallet support means being arranged facing each other such that they can be rotated downwards,
• hydraulic cylinder means for rotating said pallet support means,
• a pair of pallet trucks which move parallel to one another inside said ship hold,
• platform means provided on said pallet trucks for supporting said pallet and which rotate about vertical axes, and
• jack means for lifting said platform means.