WO2005012149A1 - Apparatus for loading and unloading cargo at sea-side of ship - Google Patents

Apparatus for loading and unloading cargo at sea-side of ship Download PDF

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Publication number
WO2005012149A1
WO2005012149A1 PCT/KR2003/002030 KR0302030W WO2005012149A1 WO 2005012149 A1 WO2005012149 A1 WO 2005012149A1 KR 0302030 W KR0302030 W KR 0302030W WO 2005012149 A1 WO2005012149 A1 WO 2005012149A1
Authority
WO
WIPO (PCT)
Prior art keywords
barge
bridge deck
ship
quay wall
cargo
Prior art date
Application number
PCT/KR2003/002030
Other languages
French (fr)
Inventor
Gong-Il Jeong
Original Assignee
Han Ah Engineering Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Han Ah Engineering Co., Ltd. filed Critical Han Ah Engineering Co., Ltd.
Priority to EP03817807A priority Critical patent/EP1648804B1/en
Priority to DE60325424T priority patent/DE60325424D1/en
Priority to AU2003265119A priority patent/AU2003265119A1/en
Priority to US10/539,167 priority patent/US20060104748A1/en
Publication of WO2005012149A1 publication Critical patent/WO2005012149A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • E02B3/068—Landing stages for vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G67/00—Loading or unloading vehicles
    • B65G67/60—Loading or unloading ships
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
    • B65G63/04—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations with essentially-horizontal transit by bridges equipped with conveyors
    • B65G63/042—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations with essentially-horizontal transit by bridges equipped with conveyors for articles
    • B65G63/045—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations with essentially-horizontal transit by bridges equipped with conveyors for articles for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G67/00—Loading or unloading vehicles
    • B65G67/60—Loading or unloading ships
    • B65G67/603—Loading or unloading ships using devices specially adapted for articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/002—Container cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters

Definitions

  • the present invention relates to an apparatus for loading or unloading cargo on or from a ship mooring at a quay wall of a harbor, and more particularly to an apparatus for loading and unloading cargo at a sea-side of a ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side.
  • marine transportation using a container ship is advantageous in that the marine transportation can carry more cargo and requires less cost in comparison with transportations by other transport means .
  • countries surrounded by the sea like the Republic of Korea have been considerably dependent on the marine transportation in a trade with foreign countries .
  • the cargo-handling capability is proportional to the capacity and number of cranes which take part in the cargo-handling.
  • it has been very difficult to expand the cargo-handling capability in the conventional harbors since there is a limit to the number of cranes which can be simultaneously operated at the same quay-wall in the conventional harbors, due to restriction to the space which can be occupied by combination of cargo-handling systems, movement lines of transport vehicles, etc.
  • the time for which a ship stays at a quay wall is proportional to the size of the ship or the quantity of cargo carried by the ship. Therefore, larger ships deteriorate availability of a quay wall and increase the physical distribution cost.
  • the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus which can load or unload cargo at a sea-side of a ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side.
  • an apparatus for loading and unloading cargo at a seaside of a ship comprising: a barge having a mooring side corresponding to one side of the ship; a barge anchoring unit for anchoring and releasing the barge at and from a predetermined place; at least one container crane disposed on an upper surface of the barge and being movable in a longitudinal direction of the barge; and at least one drawbridge for connecting an end of the mooring side of the barge to the quay wall.
  • the barge anchoring unit comprises: a plurality of ballast tanks provided at a lower surface of the barge; and a pumping unit for filling and discharging seawater in and from the ballast tanks.
  • each of the ballast tanks has a cushioning chamber disposed under the ballast tank.
  • the drawbridge comprises: a bridge deck connected between the quay wall and the barge, the bridge deck having a first end connected to the barge in such a manner that the bridge deck can pivot up and down about the first end of the bridge deck; a support tower installed on the barge; and a deck holder assembly having a first end coupled to a side surface of the bridge deck and a second end fixed to an upper portion of the support tower, so as to fold and unfold the bridge deck into and from the barge .
  • the deck holder assembly may comprise: a cylinder hinged to the upper portion of the support tower; and a piston having a first end connected to the cylinder and a second end hinged to the side surface of the bridge deck.
  • the drawbridge may further comprise a wire fixedly connecting the upper portion of the support tower to the barge .
  • the bridge deck has a second end opposite to the first end of the bridge deck
  • the drawbridge further comprises a plurality of roller bearings provided under the second end of the bridge deck, the roller bearings being in contact with the quay wall to connect the second end of the bridge deck to the quay wall when the drawbridge is unfolded.
  • the bridge deck may further comprise a strut installed at the second end of the bridge deck in contact with the quay wall.
  • the apparatus may further comprise a tugboat for tugging the barge to a location at which the mooring side of the barge is disposed adjacent to the sea-side of the ship.
  • FIG. 1 is a top view of an apparatus for loading and unloading cargo at a sea-side of a ship according to the present invention
  • FIG. 2 is a sectional view of the apparatus shown in FIG. 1;
  • FIG. 3 is an enlarged partially-sectional view of a ballast tank shown in FIG. 2;
  • FIG. 4 is a detailed side view the apparatus shown in FIG. 1, which especially shows a drawbridge of the apparatus in more detail.
  • FIG. 1 is a top view of an apparatus for loading and unloading cargo at a sea-side of a ship according to the present invention
  • FIG. 2 is a sectional view of the apparatus shown in FIG. 1
  • FIG. 3 is an enlarged partially-sectional view of a ballast tank shown in FIG. 2.
  • an apparatus for loading and unloading cargo at a sea-side of a ship includes a barge 10 having a mooring side 11 corresponding to one side of a container ship 70, a barge anchoring unit 20 for anchoring or releasing the barge 10 at or from a predetermined place, at least one container crane 30 disposed on an upper surface of the barge 10 and being movable in a longitudinal direction of the barge 10, and drawbridges 40 for connecting ends of the mooring side 11 of the barge 10 to the quay wall 50.
  • the barge anchoring unit 20 which anchors or releases the barge 10 at or from a predetermined position in the sea, includes a plurality of ballast tanks 21 provided at a lower surface of the barge 10 and a pumping unit 22 for filling or discharging seawater in or from the ballast tanks 21.
  • the container cranes 30 are installed on a pair of rails 12 extending in a longitudinal direction on the upper surface of the barge 10.
  • the container cranes 30 load or unload cargo while moving in the longitudinal direction along the rails 12.
  • a barge 10 is tugged by a tugboat (not shown) so that a mooring side 11 of the barge 10 is disposed adjacent to a sea-side of the container ship 70. Then, the pumping unit 22 is operated to fill the ballast tanks 21 with seawater. As the weight of the barge 10 increases, the ballast tanks 21 sink to the bottom of the sea. When the ballast tanks 21 have been seated on the bottom of the sea, the barge 10 is firmly anchored in place.
  • the drawbridge 40 mounted on the barge 10 is connected and firmly fixed to the quay wall 50. Then, cargo can be loaded or unloaded at both sides of the container ship 70 simultaneously by both the cranes installed on the quay wall 50 and the cranes arranged on the barge 10.
  • a trailer 80 loading cargo thereon can be driven between the barge 10 and the quay wall 50 through the drawbridges 40 installed before the stem and after the stern of the container ship 70, to rapidly carry the cargo between them.
  • the drawbridge 40 is separated from the quay wall 50 and retracted into the barge 10. Then, the pumping unit 22 discharges seawater out of the ballast tanks 21, thereby causing the barge 10 to rise.
  • the barge 10 is tugged and moved by tugboats to another container ship or mooring site, which requires cargo handling.
  • the barge 10 is moored at a quay wall or anchored at a predetermined location.
  • the ballast tanks 21 are filled with seawater and simultaneously the container cranes 30 are firmly fixed to the rails 12 of the barge 10, so that the barge 10 can be firmly held in place against wind.
  • an apparatus can load or unload cargo at a seaside of a container ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides, that is, sea-side and land-side, of the container ship, more rapidly than in the prior art.
  • a predetermined location of the seabed in front of the quay wall 50, to which the barge 10 is seated may be subjected to a necessary processing and a flat rock-filled bed 60 may be then formed on the location, so that the ballast tanks 21 can be stably supported by the rock-filled bed 60 when the ballast tanks 21 have been seated in the location.
  • a cushioning chamber 210 may be formed under the ballast tanks 21, to effectively absorb impact which may be applied to the ballast tanks 21 when the ballast tanks 21 are settled on the seabed while the barge 10 is anchored.
  • FIG. 4 is a detailed side view the apparatus shown in FIG. 1, which especially shows a drawbridge of the apparatus in more detail.
  • a bridge deck 41 of the drawbridge 40 is laid between the quay wall 50 and the barge 10, is fixed to the barge 10 through a coupling member 43, and is connected with a deck holder assembly 44.
  • the deck holder assembly 44 is telescopically fixed to a support tower 45 installed on the barge 10 and thus has an adjustable length.
  • the coupling member 43 installed between the barge 10 and one end of the bridge deck 41 allows the bridge deck 41 to be pivoted up and down by the deck holder assembly 44.
  • a typical coupling means such as a ball joint may be employed as the coupling member 43.
  • the bridge deck 41 can be easily installed to connect the barge 10 and the quay wall 50 with each other.
  • a plurality of roller bearings 42 disposed under the other end of the bridge deck 41 enable the bridge deck 41 to smoothly perform its original function regardless of change in the distance between the quay wall 50 and the barge 10 due to variance in the width of each container ship 70.
  • the deck holder assembly 44 includes a cylinder
  • the cylinder 440 is hinged to an upper portion of the support tower 45, and the piston
  • the cylinder 440 and the piston 441 of the deck holder assembly 44 can fold and unfold the bridge deck 41 from and into the barge 10.
  • the bridge deck 41 is unfolded between the quay wall 50 and the barge 10
  • the bridge deck 41 is supported between the quay wall 50 and the barge 10.
  • the bridge deck 41 is pivoted about the coupling member 43 to enable the height of the bridge deck 41 to be automatically adjusted.
  • the support tower 45 must be firmly fixed to the barge 10 so that the support tower 45 can support the weight of the bridge deck 41 while the cylinder 440 operates.
  • a wire 46 having a strong tensile strength is connected between the upper portion of the support tower 45 and a portion of the barge located on the side opposite to the cylinder 440.
  • the bridge deck 41 has one end fixed to the barge 10 by the rotatable coupling member 43.
  • the other end of the bridge deck 41 seated on the quay wall 50 is provided with a strut 47.
  • the strut 47 can prevent wheels of vehicles passing the bridge deck 41 from being caught by a stepped portion formed due to the thickness of the bridge deck 41, thereby allowing the vehicles to pass the bridge deck 41 more rapidly and smoothly.
  • an apparatus can load or unload cargo at a sea-side of a container ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side.
  • the present invention can significantly improve cargo-handling capability of a harbor in comparison with that by the prior art.
  • an apparatus can reduce the time for which a ship stays at a quay wall, thereby improving availability of the quay wall and decreasing the physical distribution cost.
  • an apparatus according to the present invention may further have a cushioning chamber disposed under each ballast tank, which can effectively absorb possible impact and prevent breakage of the ballast tanks when the ballast tanks are settled on the seabed.
  • an apparatus has drawbridges each having length, inclination, and height, which can be freely adjusted according to the width of the container ship, the height of the quay wall, and the depth of the sea, so that the drawbridges can be rapidly installed and used regardless of the surroundings, thereby further reducing the time for which a ship stays at a quay wall.

Abstract

Disclosed is an apparatus for loading and unloading cargo at a sea-side of a ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side. The apparatus comprises: a barge having a mooring side corresponding to one side of the ship; a barge anchoring unit for anchoring and releasing the barge at and from a predetermined place; at least one container crane disposed on an upper surface of the barge and being movable in a longitudinal direction of the barge; and at least one drawbridge for connecting an end of the mooring side of the barge to the quay wall. The apparatus remarkably improves the cargo-handling capability of a harbor in comparison with that by the prior art. Further, the apparatus reduces the time for which a ship stays at a quay wall, thereby improving the availability of the quay wall and reducing the physical distribution cost.

Description

APPARATUS FOR LOADING AND UNLOADING CARGO AT SEA-SIDE OF SHIP
Field of the Field The present invention relates to an apparatus for loading or unloading cargo on or from a ship mooring at a quay wall of a harbor, and more particularly to an apparatus for loading and unloading cargo at a sea-side of a ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side.
Background of the Invention In general, marine transportation using a container ship is advantageous in that the marine transportation can carry more cargo and requires less cost in comparison with transportations by other transport means . Countries surrounded by the sea like the Republic of Korea have been considerably dependent on the marine transportation in a trade with foreign countries .
Particularly, the marine transportation industry is currently in pursuit of larger ships, in order to increase the quantity of cargo transported by each ship, thereby reducing physical distribution cost and securing economical efficiency. As a result, harbors are required to expand their facilities for mooring and cargo-handing.
However, most harbors have linear quay walls and cargo- handling equipment such as cranes located only on the land. Therefore, cargo-handling has no choice but to be performed only at one side of the a ship, that is, only at a quay-side or land-side of a ship mooring at the quay wall.
In this case, the cargo-handling capability is proportional to the capacity and number of cranes which take part in the cargo-handling. However, it has been very difficult to expand the cargo-handling capability in the conventional harbors, since there is a limit to the number of cranes which can be simultaneously operated at the same quay-wall in the conventional harbors, due to restriction to the space which can be occupied by combination of cargo-handling systems, movement lines of transport vehicles, etc.
Further, the time for which a ship stays at a quay wall is proportional to the size of the ship or the quantity of cargo carried by the ship. Therefore, larger ships deteriorate availability of a quay wall and increase the physical distribution cost.
Objection of the Invention
Therefore, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus which can load or unload cargo at a sea-side of a ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side.
It is another object of the present invention to provide an apparatus for loading and unloading cargo at a sea-side of a ship, which includes ballast tanks for rising and sinking a barge of the apparatus and cushioning chambers under the ballast tanks for effectively absorbing possible impact when the ballast tanks are settled on the seabed.
It is yet another object of the present invention to provide an apparatus for loading and unloading cargo at a sea-side of a ship, which has drawbridges each having length, inclination, and height, which can be freely adjusted according to the width of the container ship, the height of the quay wall, and the depth of the sea, so that the drawbridges can be rapidly installed and used regardless of the surroundings.
Summary of the Invention
In order to accomplish these objects, there is provided an apparatus for loading and unloading cargo at a seaside of a ship, the apparatus comprising: a barge having a mooring side corresponding to one side of the ship; a barge anchoring unit for anchoring and releasing the barge at and from a predetermined place; at least one container crane disposed on an upper surface of the barge and being movable in a longitudinal direction of the barge; and at least one drawbridge for connecting an end of the mooring side of the barge to the quay wall.
Preferably, the barge anchoring unit comprises: a plurality of ballast tanks provided at a lower surface of the barge; and a pumping unit for filling and discharging seawater in and from the ballast tanks.
It is also preferred that each of the ballast tanks has a cushioning chamber disposed under the ballast tank.
More preferably, the drawbridge comprises: a bridge deck connected between the quay wall and the barge, the bridge deck having a first end connected to the barge in such a manner that the bridge deck can pivot up and down about the first end of the bridge deck; a support tower installed on the barge; and a deck holder assembly having a first end coupled to a side surface of the bridge deck and a second end fixed to an upper portion of the support tower, so as to fold and unfold the bridge deck into and from the barge .
The deck holder assembly may comprise: a cylinder hinged to the upper portion of the support tower; and a piston having a first end connected to the cylinder and a second end hinged to the side surface of the bridge deck.
The drawbridge may further comprise a wire fixedly connecting the upper portion of the support tower to the barge .
Preferably, the bridge deck has a second end opposite to the first end of the bridge deck, and the drawbridge further comprises a plurality of roller bearings provided under the second end of the bridge deck, the roller bearings being in contact with the quay wall to connect the second end of the bridge deck to the quay wall when the drawbridge is unfolded.
The bridge deck may further comprise a strut installed at the second end of the bridge deck in contact with the quay wall.
More preferably, the apparatus may further comprise a tugboat for tugging the barge to a location at which the mooring side of the barge is disposed adjacent to the sea-side of the ship. Brief Description of the Drawings
The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
FIG. 1 is a top view of an apparatus for loading and unloading cargo at a sea-side of a ship according to the present invention;
FIG. 2 is a sectional view of the apparatus shown in FIG. 1;
FIG. 3 is an enlarged partially-sectional view of a ballast tank shown in FIG. 2; and
FIG. 4 is a detailed side view the apparatus shown in FIG. 1, which especially shows a drawbridge of the apparatus in more detail.
Detailed Description of the Preferred Embodiments
Reference will now be made in detail to the preferred embodiments of the present invention.
FIG. 1 is a top view of an apparatus for loading and unloading cargo at a sea-side of a ship according to the present invention, FIG. 2 is a sectional view of the apparatus shown in FIG. 1, and FIG. 3 is an enlarged partially-sectional view of a ballast tank shown in FIG. 2.
As shown in FIGs . 1 to 3, an apparatus for loading and unloading cargo at a sea-side of a ship according to the present invention includes a barge 10 having a mooring side 11 corresponding to one side of a container ship 70, a barge anchoring unit 20 for anchoring or releasing the barge 10 at or from a predetermined place, at least one container crane 30 disposed on an upper surface of the barge 10 and being movable in a longitudinal direction of the barge 10, and drawbridges 40 for connecting ends of the mooring side 11 of the barge 10 to the quay wall 50.
Here, the barge anchoring unit 20, which anchors or releases the barge 10 at or from a predetermined position in the sea, includes a plurality of ballast tanks 21 provided at a lower surface of the barge 10 and a pumping unit 22 for filling or discharging seawater in or from the ballast tanks 21.
Further, the container cranes 30 are installed on a pair of rails 12 extending in a longitudinal direction on the upper surface of the barge 10. The container cranes 30 load or unload cargo while moving in the longitudinal direction along the rails 12.
Hereinafter, operating of the apparatus according to the present invention will be described.
1. Mooring and anchoring the barge at one side of a ship
First, when a container ship 70 has been moored at a quay wall 50 in a harbor, a barge 10 is tugged by a tugboat (not shown) so that a mooring side 11 of the barge 10 is disposed adjacent to a sea-side of the container ship 70. Then, the pumping unit 22 is operated to fill the ballast tanks 21 with seawater. As the weight of the barge 10 increases, the ballast tanks 21 sink to the bottom of the sea. When the ballast tanks 21 have been seated on the bottom of the sea, the barge 10 is firmly anchored in place.
2. Loading and unloading cargo
When the barge 10 has been anchored in place in the manner described above, the drawbridge 40 mounted on the barge 10 is connected and firmly fixed to the quay wall 50. Then, cargo can be loaded or unloaded at both sides of the container ship 70 simultaneously by both the cranes installed on the quay wall 50 and the cranes arranged on the barge 10.
Then, a trailer 80 loading cargo thereon can be driven between the barge 10 and the quay wall 50 through the drawbridges 40 installed before the stem and after the stern of the container ship 70, to rapidly carry the cargo between them.
3. Separation after the cargo handling
When the cargo-handling has been completed, the drawbridge 40 is separated from the quay wall 50 and retracted into the barge 10. Then, the pumping unit 22 discharges seawater out of the ballast tanks 21, thereby causing the barge 10 to rise.
Then, the barge 10 is tugged and moved by tugboats to another container ship or mooring site, which requires cargo handling.
4. During idle time
During idle time, the barge 10 is moored at a quay wall or anchored at a predetermined location. When the weather is bad, for example, when it is windy, the ballast tanks 21 are filled with seawater and simultaneously the container cranes 30 are firmly fixed to the rails 12 of the barge 10, so that the barge 10 can be firmly held in place against wind.
As described above, an apparatus according to the present invention can load or unload cargo at a seaside of a container ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides, that is, sea-side and land-side, of the container ship, more rapidly than in the prior art.
Herein, as shown in FIGs. 2 and 3, a predetermined location of the seabed in front of the quay wall 50, to which the barge 10 is seated, may be subjected to a necessary processing and a flat rock-filled bed 60 may be then formed on the location, so that the ballast tanks 21 can be stably supported by the rock-filled bed 60 when the ballast tanks 21 have been seated in the location.
Further, as shown in FIG. 3, a cushioning chamber 210 may be formed under the ballast tanks 21, to effectively absorb impact which may be applied to the ballast tanks 21 when the ballast tanks 21 are settled on the seabed while the barge 10 is anchored.
FIG. 4 is a detailed side view the apparatus shown in FIG. 1, which especially shows a drawbridge of the apparatus in more detail. As shown in FIG. 4, a bridge deck 41 of the drawbridge 40 is laid between the quay wall 50 and the barge 10, is fixed to the barge 10 through a coupling member 43, and is connected with a deck holder assembly 44. The deck holder assembly 44 is telescopically fixed to a support tower 45 installed on the barge 10 and thus has an adjustable length.
The coupling member 43 installed between the barge 10 and one end of the bridge deck 41 allows the bridge deck 41 to be pivoted up and down by the deck holder assembly 44. Herein, a typical coupling means such as a ball joint may be employed as the coupling member 43.
As a result, even when the quay wall 50 is not level with the barge 10 due to various reasons such as variances in the height of the quay wall 50 and the depth of the sea, the bridge deck 41 can be easily installed to connect the barge 10 and the quay wall 50 with each other.
Moreover, a plurality of roller bearings 42 disposed under the other end of the bridge deck 41 enable the bridge deck 41 to smoothly perform its original function regardless of change in the distance between the quay wall 50 and the barge 10 due to variance in the width of each container ship 70.
Here, the deck holder assembly 44 includes a cylinder
440 and a piston 441. The cylinder 440 is hinged to an upper portion of the support tower 45, and the piston
441 is connected to the cylinder and hinged to one side surface of the bridge deck 41. Therefore, the cylinder 440 and the piston 441 of the deck holder assembly 44 can fold and unfold the bridge deck 41 from and into the barge 10. When the bridge deck 41 is unfolded between the quay wall 50 and the barge 10, the bridge deck 41 is supported between the quay wall 50 and the barge 10.
When the cylinder 440 is operated, the bridge deck 41 is pivoted about the coupling member 43 to enable the height of the bridge deck 41 to be automatically adjusted.
The support tower 45 must be firmly fixed to the barge 10 so that the support tower 45 can support the weight of the bridge deck 41 while the cylinder 440 operates. To this end, a wire 46 having a strong tensile strength is connected between the upper portion of the support tower 45 and a portion of the barge located on the side opposite to the cylinder 440.
The bridge deck 41 has one end fixed to the barge 10 by the rotatable coupling member 43. The other end of the bridge deck 41 seated on the quay wall 50 is provided with a strut 47.
The strut 47 can prevent wheels of vehicles passing the bridge deck 41 from being caught by a stepped portion formed due to the thickness of the bridge deck 41, thereby allowing the vehicles to pass the bridge deck 41 more rapidly and smoothly.
Industrial Applicability As can be seen from the foregoing, an apparatus according to the present invention can load or unload cargo at a sea-side of a container ship mooring at a quay wall, thereby enabling cargo to be loaded or unloaded simultaneously at both sides of the container ship by both cargo-handling apparatuses at the sea-side and the land-side. As a result, the present invention can significantly improve cargo-handling capability of a harbor in comparison with that by the prior art.
Further, an apparatus according to the present invention can reduce the time for which a ship stays at a quay wall, thereby improving availability of the quay wall and decreasing the physical distribution cost.
Moreover, an apparatus according to the present invention may further have a cushioning chamber disposed under each ballast tank, which can effectively absorb possible impact and prevent breakage of the ballast tanks when the ballast tanks are settled on the seabed.
In addition, an apparatus according to the present invention has drawbridges each having length, inclination, and height, which can be freely adjusted according to the width of the container ship, the height of the quay wall, and the depth of the sea, so that the drawbridges can be rapidly installed and used regardless of the surroundings, thereby further reducing the time for which a ship stays at a quay wall.
While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment and the drawings, but, on the contrary, it is intended to cover various modifications and variations within the spirit and scope of the appended claims .

Claims

Claims
1. An apparatus for loading and unloading cargo at a sea-side of a ship, the apparatus comprising: a barge having a mooring side corresponding to one side of the ship; a barge anchoring unit for anchoring and releasing the barge at and from a predetermined place; at least one container crane disposed on an upper surface of the barge and being movable in a longitudinal direction of the barge; and at least one_drawbridge for connecting an end of the mooring side of the barge to the quay wall.
2. The apparatus according to claim 1, wherein the barge anchoring unit comprises : a plurality of ballast tanks provided at a lower surface of the barge; and a pumping unit for filling and discharging seawater in and from the ballast tanks.
3. The apparatus according to claim 2, wherein each of the ballast tanks has a cushioning chamber disposed under the ballast tank.
4. The apparatus according to claim 1, wherein the drawbridge comprises: a bridge deck connected between the quay wall and the barge, the bridge deck having a first end connected to the barge in such a manner that the bridge deck can pivot up and down about the first end of the bridge deck; a support tower installed on the barge; and a deck holder assembly having a first end coupled to a side surface of the bridge deck and a second end fixed to an upper portion of the support tower, so as to fold and unfold the bridge deck into and from the barge.
5. The apparatus according to claim 4, wherein the deck holder assembly comprises: a cylinder hinged to the upper portion of the support tower; and a piston having a first end connected to the cylinder and a second end hinged to the side surface of the bridge deck.
6. The apparatus according to claim 4, wherein the drawbridge further comprises a wire fixedly connecting the upper portion of the support tower to the barge.
7. The apparatus according to claim 4, wherein the bridge deck has a second end opposite to the first end of the bridge deck, and the drawbridge further comprises a plurality of roller bearings provided under the second end of the bridge deck, the roller bearings being in contact with the quay wall to connect the second end of the bridge deck to the quay wall when the drawbridge is unfolded.
8. The apparatus according to claim 4, wherein the bridge deck further comprises a strut installed at the second end of the bridge deck in contact with the quay wall .
9. The apparatus according to claim 1, further comprising a tugboat for tugging the barge to a location at which the mooring side of the barge is disposed adjacent to the sea-side of the ship.
PCT/KR2003/002030 2003-07-29 2003-10-02 Apparatus for loading and unloading cargo at sea-side of ship WO2005012149A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03817807A EP1648804B1 (en) 2003-07-29 2003-10-02 Apparatus for loading and unloading cargo at sea-side of ship
DE60325424T DE60325424D1 (en) 2003-07-29 2003-10-02 DEVICE FOR LOADING AND UNLOADING FREIGHT ON THE WATER SIDE OF A SHIP
AU2003265119A AU2003265119A1 (en) 2003-07-29 2003-10-02 Apparatus for loading and unloading cargo at sea-side of ship
US10/539,167 US20060104748A1 (en) 2003-07-29 2003-11-26 Apparatus for loading and unloading cargo at sea-side of ship

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2003-0052418A KR100466881B1 (en) 2003-07-29 2003-07-29 A cargo-handling apparatus for operation at both side of ship
KR10-2003-0052418 2003-07-29

Publications (1)

Publication Number Publication Date
WO2005012149A1 true WO2005012149A1 (en) 2005-02-10

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US (1) US20060104748A1 (en)
EP (1) EP1648804B1 (en)
KR (1) KR100466881B1 (en)
CN (1) CN1576162A (en)
AT (1) ATE417800T1 (en)
AU (1) AU2003265119A1 (en)
DE (1) DE60325424D1 (en)
SG (1) SG139527A1 (en)
WO (1) WO2005012149A1 (en)

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Also Published As

Publication number Publication date
CN1576162A (en) 2005-02-09
SG139527A1 (en) 2008-02-29
EP1648804A1 (en) 2006-04-26
AU2003265119A1 (en) 2005-02-15
US20060104748A1 (en) 2006-05-18
KR20030087995A (en) 2003-11-15
DE60325424D1 (en) 2009-01-29
KR100466881B1 (en) 2005-01-24
EP1648804B1 (en) 2008-12-17
ATE417800T1 (en) 2009-01-15
EP1648804A4 (en) 2006-10-11

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