WO2010018618A1 - 船舶の復原力回復装置及びこれを備えた自動車運搬船 - Google Patents
船舶の復原力回復装置及びこれを備えた自動車運搬船 Download PDFInfo
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- WO2010018618A1 WO2010018618A1 PCT/JP2008/064445 JP2008064445W WO2010018618A1 WO 2010018618 A1 WO2010018618 A1 WO 2010018618A1 JP 2008064445 W JP2008064445 W JP 2008064445W WO 2010018618 A1 WO2010018618 A1 WO 2010018618A1
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- watertight
- ship
- seawater
- inundation
- deck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
- B63B43/045—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability by decreasing the free surface effect of water entered in enclosed decks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/54—Ferries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/24—Arrangements of watertight doors in bulkheads
Definitions
- the present invention relates to a ship restoring power recovery device for securing stability in the event of damage to a ship, and a car carrier equipped with the same.
- a wall element for partitioning adjacent sections in order to ensure stability by restricting the amount of inundation at the time of damage, and can support a predetermined load.
- the additional element blocks the movement of heated gas between adjacent compartments and allows seawater to move to the other of the adjacent compartments when seawater enters one of the adjacent compartments.
- Water Trap Water Trap
- a main hull with a flat bottom and a submersible tank hull with a seawater in / out pressure transmission release hole and an air vent vent pipe are added to the bottom of the main hull to construct a submersible auxiliary hull.
- Patent Document 2 There has also been proposed a structure in which the apparent center of gravity is moved downward to make it difficult to overturn by being formed (configured) with a submerged tank auxiliary hull to be carried.
- Patent Document 2 the one described in Patent Document 2 is substantially the same as that provided with a ballast for lowering the center of gravity, and there is a problem that the number of vehicles mounted is reduced.
- the present invention has been proposed to solve the above-mentioned problems, and in a ship having a preliminary buoyancy such as a huge void space (pipe space) near the ship bottom, the void space (pipe space) is effective.
- An object of the present invention is to provide a ship restoring power recovery device that secures stability in the event of damage to a ship and a car carrier equipped with the same.
- the present invention has been made to solve the above-described conventional problems, and each of the inventions described in the scope of the claims is a ship restoring power recovery device and an automobile carrier equipped with the same, and each means described below. Is adopted.
- the ship restoring power recovery device of the first means is: It is characterized by having seawater introduction means that can be opened remotely on the watertight deck in the lowest layer above the void space at the bottom of the ship.
- the second means is the ship restoring power recovery apparatus of the first means
- the seawater introducing means is A seawater introduction hole opened near the ridge side of the watertight deck; A watertight door for closing the lower surface of the seawater introduction hole; A watertight door opening device for opening the watertight door is provided.
- the third means is the ship restoring power recovery apparatus of the first means.
- the seawater introducing means is A seawater introduction hole opened near the ridge side of the watertight deck; A watertight box provided on the lower surface of the watertight deck so as to surround the seawater introduction hole; A second seawater introduction hole opened in a side surface of the watertight box; A watertight door for closing the second seawater introduction hole; A watertight door opening device for opening the watertight door is provided.
- the fourth means is the ship restoring power recovery apparatus of the second or third means, An inundation detector provided on the watertight deck; An inundation indicator that displays that the inundation detection device has detected inundation; And a watertight door operation device for outputting an operation signal for opening the watertight door to the watertight door opening device.
- the fifth means is the ship restoring power recovery apparatus of the fourth means, A non-watertight section of the ship is equipped with a restoring force monitoring control device, The water immersion indicator and the watertight door operation device are provided in the stability monitoring and control apparatus.
- the sixth means is the ship restoring power recovery apparatus of the fifth means
- the stability monitoring control device is An automatic opening condition input terminal for inputting the state of the ship; When determining whether or not to automatically open the watertight door based on the signal of detecting inundation from the inundation detection device and the state of the ship input to the automatic opening condition input terminal, and when it is determined to be automatic opening An automatic opening judgment device that outputs an operation signal to open the watertight door; A manual / automatic switch for selecting one of an operation signal from the watertight door operation device and an operation signal from the automatic opening determination device and outputting an operation signal for opening the watertight door to the watertight door opening device. It is characterized by comprising.
- the seventh means is the ship restoring power recovery apparatus of the fifth or sixth means,
- the void space is provided with a water level gauge, and the stability monitoring control device is provided with a sea level indicator that receives a signal from the water level gauge and displays the level of sea water in the void space. .
- the eighth means is the ship restoring power recovery apparatus of the first means
- the seawater introducing means is A seawater introduction opening / closing valve provided in the void space; While having a seawater introduction pipe connected to the seawater introduction opening and closing valve and opening to the watertight deck, An inundation detector provided in the vicinity of the watertight door on the watertight deck; An inundation indicator that displays that the inundation detection device has detected inundation; A valve remote control rod for operating the seawater introduction opening and closing valve; A valve operating handle provided at the tip of the valve remote control rod; It is provided with.
- the ninth means is the ship restoring power recovery apparatus of the first means
- the seawater introducing means is A seawater introduction hole opened near the ridge side of the watertight deck; A watertight box provided on the lower surface of the lowermost watertight deck so as to surround the seawater introduction hole; And having a second seawater introduction hole opened in a side surface of the watertight box, An inundation detector provided in the vicinity of the watertight door on the watertight deck; An inundation indicator that displays that the inundation detection device has detected inundation; It is provided with.
- the tenth means is the ship restoring power recovery apparatus of the first means
- the seawater introducing means is a vertical communication pipe that communicates a plurality of air vent pipes provided on the left and right side of the watertight deck, An inundation detection device provided in the vicinity of the ship side skin on the watertight deck; An inundation indicator that displays that the inundation detection device has detected inundation; It is provided with.
- the eleventh means is the ship restoring power recovery apparatus of any of the eighth to tenth means,
- the void space is provided with a water level meter, and further includes a sea level indicator that receives a signal from the water level meter and displays the level of sea water in the void space.
- the vehicle carrier of the twelfth means is provided with the ship restoring power recovery device of any one of the first to eleventh means.
- the seawater introduction means provided on the bottom watertight deck is opened to Seawater that has entered the space can be introduced into the void space (pipe space), so the void space (pipe space), which usually has a large reserve buoyancy, can function as a kind of seawater ballast tank, You can restore power.
- FIG. 1 is a front sectional view of an automobile carrier provided with a ship restoring power recovery device according to a first embodiment of the present invention. It is a circuit diagram of the restoring force monitoring control device. It is front sectional drawing of the motor vehicle carrier provided with the ship stability restoring apparatus which concerns on the 2nd Embodiment of this invention. It is front sectional drawing of the motor vehicle carrier provided with the ship stability restoring apparatus which concerns on the 3rd Embodiment of this invention. It is front sectional drawing of the motor vehicle carrier provided with the ship stability restoring apparatus which concerns on the 4th Embodiment of this invention. It is front sectional drawing of the motor vehicle carrying ship provided with the ship stability restoring apparatus which concerns on the 5th Embodiment of this invention.
- FIG. 1 is a front cross-sectional view of an automobile carrier equipped with a ship stability recovery apparatus according to a first embodiment of the present invention
- FIG. 2 is a circuit diagram of the stability monitoring and control apparatus.
- FIG. 3 is a front cross-sectional view of an automobile carrier equipped with a ship stability restoring apparatus according to the second embodiment of the present invention
- FIG. 4 is a ship stability restoring apparatus according to the third embodiment of the present invention.
- FIG. 5 is a front sectional view of an automobile carrier equipped with a ship restoring power recovery device according to the fourth embodiment of the present invention
- FIG. 6 is a fifth sectional view of the present invention. It is front sectional drawing of the motor vehicle carrier provided with the ship stability restoring apparatus which concerns on embodiment.
- the car carrier 1 is formed in a substantially box shape in cross section by a ship side skin 2 and a ship bottom skin 3.
- the interior of the car carrier 1 is provided with a plywood deck 4 (vehicle carry-in / out deck, watertight deck), a plurality of layers of watertight decks 5a and 5b for mounting on vehicles, and a multi-layered non-watertight deck 6 for mounting on vehicles.
- a plywood deck 4 vehicle carry-in / out deck, watertight deck
- a plurality of layers of watertight decks 5a and 5b for mounting on vehicles
- a multi-layered non-watertight deck 6 for mounting on vehicles.
- a watertight plinth deck 4 is provided near the center of the car carrier 1 in the vertical direction.
- An outboard lamp (not shown) is connected to the plinth deck 4 so that the vehicle rolls on and off.
- the car carrier 1 is provided with a watertight deck 5a for mounting on the vehicle at the bottom, and a watertight deck 5b for mounting on the vehicle is also provided on the top of the plinth deck 4. Further, at least one or more layers for mounting a vehicle is provided between the plywood deck 4 and the upper vehicle-mounted watertight deck 5b, and between the plywood deck 4 and the lowermost vehicle-mounted watertight deck 5a.
- a non-watertight deck 6 is provided.
- a plurality of layers (5 to 7 layers) of a non-watertight deck 6 for mounting on a vehicle are also provided on the upper portion of the upper watertight deck 5b.
- a multi-layer (for example, 10 to 12 layers) vehicle mounting section CS is formed between the plywood deck 4, the multiple layers of watertight decks 5a and 5b, and the multiple layers of non-watertight deck 6.
- a ballast tank 7 (or a fuel tank or the like) is provided below the lowermost vehicle-mounted watertight deck 5a.
- the fuel tank it is necessary to make a double shell to prevent the fuel from flowing out when the ship bottom is damaged, and the fuel tank is provided away from the ship bottom outer plate 3.
- a void space 8 (pipe space) is formed between the bottom shell 3 and the bottom watertight deck 5a or the tank bottom plate of the ballast tank 7 (or fuel tank, etc.).
- a large number of pipes 9 for conveying ballast water, fuel and the like are provided.
- This void space 8 (or void space) is not used for ballast (fixed or seawater) or the like, and has a huge reserve buoyancy.
- the ship restoring power recovery device and the vehicle carrier equipped with the same according to the present embodiment have a vast reserve buoyancy in the void space 8, but the remaining restoration cannot be used for a ship that cannot effectively use the reserve buoyancy. It tries to restore power. In conventional ships, the required value is satisfied in the full load state, but the remaining restoring power is insufficient particularly in the light load state, and it is noted that there are many ships that do not satisfy the required value.
- the ship's stability restoring apparatus according to the first embodiment of the present invention or the vehicle carrier equipped with the ship's left and right sides of the watertight deck 5 for mounting on the vehicle at the bottom is provided.
- a watertight door 16 (including a watertight hatch or the like) is provided in the seawater introduction hole 13 opened near the outer plate 2. As shown in FIG. 2, the watertight door 16 has one end connected to the flange of the seawater introduction hole 13 by a hinge pin or the like and the other end closed by a stopper 22 (including a key or the like). .
- a hydraulic cylinder device 23 is connected to the stopper 22. Then, by driving the watertight door opening device 24 constituted by the stopper 22 and the hydraulic cylinder device 23, the stopper 22 is detached from the watertight door 16, and the watertight door 16 is opened.
- the watertight door opening device 24 is not limited to the one constituted by the stopper 22 and the hydraulic cylinder device 23, and may be an opening / closing hydraulic cylinder that opens and closes the watertight door 16.
- the hydraulic cylinder device 23 includes not only the hydraulic cylinder but also various valves that control the flow of hydraulic oil, electromagnetic coils that drive the valves, and the like.
- the seawater introduction means 25 that can be remotely opened includes a seawater introduction hole 13, a flange, a watertight door 16, a stopper 22, a hydraulic cylinder device 23, and the like.
- a hatch or the like is provided on the watertight deck 5a for mounting on the lowermost vehicle.
- the conventional hatch is closed by a large number of bolts and nuts or the like, and it has been necessary to remove the numerous nuts close to the hatch in order to open the hatch.
- the seawater introduction means 25 provided on the watertight deck 5a for vehicle mounting in the lowermost part in the present embodiment can be opened by remote operation. Therefore, unlike the conventional hatch or the like, the seawater introduction means 25 can be easily opened remotely even if seawater is flooded in the place.
- an inundation detecting device 11 such as an inundation detector, a TV camera or a level switch is provided. It is desirable to provide a plurality of the inundation detection devices 11 in the vicinity of the ship side skin 2 on the left and right side in the fore and aft direction (for example, at least three locations near the bow, center, and near the stern).
- the inundation detection device 11 detects inundation by, for example, attaching an electric wire, an optical fiber, or the like to the inner surface of the ship-side outer plate 2 and detecting that the hull is damaged and the electric wire, the optical fiber is cut. It may be something like this.
- a water level meter 12 for detecting the water level of the inflowing seawater is provided.
- a simple level switch for example, a float switch for starting and stopping a bilge pump
- the water level gauge 12 may be provided with level switches (float switches) at at least three locations, for example, at the lower, upper, and central positions of the void space 8. It should be noted that a depth measuring tube may be employed instead of the water level gauge 12.
- a restoring force monitoring control device 30 is provided in a non-watertight section above the dry deck 4 of the ship of the car carrier 1 such as a steering room and a cargo handling room.
- the restoring force monitoring control device 30 and the watertight door opening device 24 for driving the watertight door 16 are connected by a valve operation signal line L3.
- the restoring force monitoring control device 30 and the inundation detection device 11 are connected by a detection signal line L1.
- the restoring force monitoring control device 30 and the water level gauge 12 are connected by a seawater level detection signal line L2.
- the stability monitoring control device 30 includes a submerged indicator 31 (submerged display lamp or TV image), a manual / automatic switch 33 (switching switch), a manual watertight door operator 34 (push button type switch), A seawater level indicator 35 is provided for displaying the seawater level in the void space 8 input via the seawater level detection signal line L2.
- the restoring force monitoring control device 30 also includes an automatic opening determination device 32 and an automatic opening condition input terminal 36.
- Examples of the state of the ship (automatic opening determination condition) input to the automatic opening condition input terminal 36 include, for example, a signal that the car carrier 1 is in a light load state, and the car carrier 1 measured with an existing draft meter. A signal from a draft meter that the draft is less than or equal to a predetermined value (light load state), a signal from an inclinometer that the car carrier 1 is tilted more than an allowable value, or an impact that the car carrier 1 has received a strong impact There are a signal from an accelerometer, a signal from an anemometer indicating a strong wind, and the like. Each of these automatic opening determination conditions is input via an opening condition signal line L4. The signal input to the automatic opening condition input terminal 36 is transmitted to the automatic opening determination device 32.
- the automatic opening determination device 32 receives the signal detected from the inundation detection device 11 received via the detection signal line L1 and the signal of the state of the ship (automatic opening determination condition) from the automatic opening condition input terminal 36. Whether or not to automatically open is determined based on these signals. For example, when inundation detection and abnormal inclination occur, or when all conditions such as inundation detection and shallow draft (light load), abnormal inclination, strong impact, and strong wind overlap Thus, it is determined that automatic opening is necessary.
- an operation signal for opening the watertight door 16 is output to the manual / automatic switching device 33.
- the manual / automatic switch 33 selects the signal from the manual watertight door operator 34 and transmits it to the watertight door opening device 24 via the valve operation signal line L3.
- the signal from the automatic opening determination device 32 is selected and transmitted via the valve operation signal line L3.
- each operation unit and arithmetic processing unit in the restoring force monitoring control device 30 are not limited to those configured by individual electric circuits.
- the operation of the car carrier 1 is comprehensively controlled and monitored.
- a form such as a subprogram or a subsequence is also included.
- the ship restoring power recovery apparatus according to the first embodiment of the present invention, or a car carrier equipped with the same, is configured as described above, and the ship side skin 2 of the car carrier 1 is damaged, and seawater is most affected.
- the state is detected by the inundation detection device 11, and the detection signal is transmitted to the restoring force monitoring control device 30 via the detection signal line L1.
- the restoring force monitoring control device 30 the information is displayed on the submerged display 31 (a submerged display lamp or a television image).
- the stability monitoring control device 30 when the manual / automatic switching device 33 is switched to "manual", the operator confirms that the seawater has entered the lowermost vehicle-mounted section CS by the flooded display 31. Then, the manual watertight door controller 34 is operated. Then, the operation signal is transmitted to the hydraulic cylinder device 23 of the watertight door opening device 24 via the valve operation signal line L3, the hydraulic cylinder device 23 is driven, the stopper 22 is detached from the watertight door 16, and the watertight door 16 is opened. Is done.
- the manual / automatic switching device 33 of the restoring force monitoring control device 30 is switched to “automatic”, when the water detection signal is received from the water detection device 11 via the detection signal line L1, the water display 31 ( The information is displayed on a submerged display lamp or television image) and transmitted to the automatic opening determination device 32. Then, in the automatic opening determination device 32, when the automatic opening condition signal is received from the automatic opening condition input terminal 36, it is determined that the seawater has entered the vehicle mounting section CS in the lowest layer. Then, an operation signal for driving the hydraulic cylinder device 23 is immediately transmitted from the automatic opening determination device 32 to the hydraulic cylinder device 23 of the watertight door opening device 24 via the valve operation signal line L3. In the watertight door opening device 24, the stopper 22 is removed from the watertight door 16 by the hydraulic cylinder device 23, and the watertight door 16 is opened. In this way, the seawater introduction means 25 is remotely opened.
- the seawater that has entered the lowermost vehicle mounting section CS passes through the watertight door 16 and enters the void space 8.
- the state (water level) of the seawater that has entered the void space 8 is detected by a water level meter 12, and the detected signal is a seawater level indicator in the stability monitoring control device 30 via a seawater level detection signal line L2. 35.
- the seawater introduction means 25 provided on the bottom watertight deck 5a is opened to enter the ship. Since the seawater can be introduced into the void space 8, the void space 8, which usually has a large reserve buoyancy, can function as a kind of seawater ballast tank, and the restoring power of the car carrier 1 can be restored. it can.
- the seawater accumulated in the void space 8 is discharged out of the ship by a normal bilge pump (not shown).
- the watertight door 16 is not directly provided on the watertight deck 5a as in the first embodiment of the present invention shown in FIG.
- Seawater introduction holes 13 are opened on the left and right sides, respectively, and a watertight box 14 surrounding each seawater introduction hole 13 is provided on the lower surface of the watertight deck 5a.
- a second seawater introduction hole 15 is opened on the side of each watertight box 14.
- a watertight door 16 is provided in each second seawater introduction hole 15.
- Each of the watertight doors 16 is provided in the vertical direction with the upper end connected to the side surface of the watertight box 14 by a hinge pin or the like, as shown in FIG.
- the watertight door 16 can be opened by the stopper 22 and the hydraulic cylinder device 23.
- the seawater introduction means 25 that can be remotely opened includes a seawater introduction hole 13, a watertight box 14, a flange, a second seawater introduction hole 15, a watertight door 16, a stopper 22 illustrated in FIG. It is comprised by.
- the seawater introduction holes 13 on the left and right sides of the watertight deck 5 a are provided with a grating or the like in order to prevent solids from falling into the void space 8. Note that the air vent tube 10 and the watertight box 14 do not overlap.
- the inundation detection device 11, the water level meter 12, the restoring force monitoring control device 30, the inundation indicator 31, the automatic opening determination device 32, the manual / automatic switching device 33, the manual watertight door operator 34, and the seawater level indicator 35 The automatic opening condition input terminal 36 and the like are provided in the same manner as in the first embodiment of the present invention shown in FIGS.
- the watertight door 16 has a hinge pin and the like as well as the same effects as those of the first embodiment of the present invention. Since the watertight door 16 is opened by the flow of seawater when the seawater flows in, the watertight door 16 opens, but in the reverse case, the watertight door 16 opens and functions as a check valve and flows into the ballast tank 7. Seawater will not leak outside again.
- the seawater introduction pipe 17 is connected to the vicinity of the center of the hull of the watertight deck 5 a for mounting on the vehicle, and the seawater introduction opening / closing valve 18 is connected to the tip of the seawater introduction pipe 17.
- the seawater introduction opening / closing valve 18 can be opened / closed by a valve remote control rod 19 extending upward from the drying deck 4 and a valve operation handle 20 provided at the upper end of the valve remote control rod 19.
- the seawater introduction means 25 that can be opened remotely is constituted by a seawater introduction pipe 17, a seawater introduction opening / closing valve 18, and the like.
- inundation detection device 11 water level meter 12, stability monitoring and control device 30, inundation indicator 31, seawater level indicator 35 and the like are the same as those of the first embodiment of the present invention shown in FIGS. It is provided similarly.
- a remotely operated seawater introduction opening / closing valve 18 can be employed.
- a valve operation signal line L3 for remote operation is connected to the seawater introduction opening / closing valve 18.
- the restoring force monitoring control device 30 also has an automatic opening determination device 32, a manual / automatic switching device 33, a manual watertight door operation device 34, and an automatic opening condition input terminal 36, as shown in FIG. ing.
- the same operational effects as those of the first embodiment of the present invention are exhibited.
- each watertight box 14 has only seawater introduction holes 13 opened.
- the void space 8a is regarded as a vehicle mounting section, it is necessary to provide the same equipment (fire detector, sprinkler, illumination, etc.) as the vehicle mounting section CS.
- the air vent pipe 10 may be connected to the watertight box 14 or may not overlap.
- the seawater introduction means 25 that can be remotely opened includes a seawater introduction hole 13, a watertight box 14, a flange, a second seawater introduction hole 15, and the like.
- inundation detection device 11 water level meter 12, stability monitoring and control device 30, inundation indicator 31, seawater level indicator 35 and the like are the same as those of the first embodiment of the present invention shown in FIGS. It is provided similarly.
- a plurality of air vent pipes 10 provided along the ship side skin 2 of the car carrier 1 are used to extend along the ship side skin 2 in the bow-stern direction.
- a vertical communication pipe 21 that communicates a plurality of air vent pipes 10 is provided.
- Two vertical communication pipes 21 are provided in the vehicle mounting section CS above the watertight deck 5a and the vehicle mounting section CS below the watertight deck 5a (a total of four in total on the left and right side).
- the seawater introduction means 25 that can be remotely opened is constituted by the air vent pipe 10, the vertical communication pipe 21, and the like.
- inundation detection device 11 water level meter 12, stability monitoring and control device 30, inundation indicator 31, seawater level indicator 35 and the like are the same as those of the first embodiment of the present invention shown in FIGS. It is provided similarly.
- the same effect as that of the first embodiment of the present invention is exhibited, and there is no movable part. There is an effect that the apparatus is simplified. Furthermore, since the void space 8 is not a vehicle mounting section, it is not necessary to provide the same equipment (fire detector, sprinkler, illumination, etc.) as the vehicle mounting section CS as in the fourth embodiment of the present invention.
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- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
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Abstract
Description
この特許文献1に記載のものによれば、ウォータトラップにより船体の損傷により隣接区画の一方に海水が浸入した場合には他の区画にも海水が進入することとなる。
これにより、船体内部の複数の区画に浸水させた状態となり、船体の軸周りの回転モーメントを抑えることができ、船体の復原性能が向上する。
或いは、損傷時における復原性を確保するために、重心降下用のバラストが必要となり自動車運搬船等では車両搭載台数が減少するという問題がある。
しかしながら、特許文献2に記載のものでは、重心降下用のバラストを設けたものと実質的に同一であり、車両搭載台数が減少する等の問題がある。
船舶の船底のボイドスペース上の最下層の水密甲板に遠隔で開放可能な海水導入手段を備えたことを特徴とする。
前記海水導入手段は、
前記水密甲板の舷側近傍に開けられた海水導入孔と、
前記海水導入孔の下面を塞ぐ水密扉と、
前記水密扉を開放する水密扉開放装置とを備えたことを特徴とする。
前記海水導入手段は、
前記水密甲板の舷側近傍に開けられた海水導入孔と、
前記海水導入孔を囲むように前記水密甲板の下面に設けられた水密箱と、
前記水密箱の側面に開けられた第2の海水導入孔と、
前記第2の海水導入孔を塞ぐ水密扉と、
前記水密扉を開放する水密扉開放装置とを備えたことを特徴とする。
前記水密甲板上に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
前記水密扉を開放するための操作信号を前記水密扉開放装置に出力する水密扉操作器とを備えたことを特徴とする。
前記船舶の非水密区画に復原力監視制御装置を備え、
前記浸水表示器及び前記水密扉操作器は、前記復原力監視制御装置に設けられていることを特徴とする。
前記復原力監視制御装置は、
前記船舶の状態が入力される自動開放条件入力端と、
前記前記浸水検知装置からの浸水を検知した信号と自動開放条件入力端に入力された前記船舶の状態とに基づき前記水密扉を自動開放するか否かを判定し、自動開放と判定した場合に水密扉を開放する操作信号を出力する自動開放判定器と、
前記水密扉操作器からの操作信号及び前記自動開放判定器からの操作信号のいずれかを選択して前記水密扉を開放するための操作信号を前記水密扉開放装置に出力する手動/自動切換え器とを備えたことを特徴とする。
前記ボイドスペースに水位計を備えると共に、前記復原力監視制御装置に前記水位計からの信号を受信して前記ボイドスペース内の海水のレベルを表示する海水レベル表示器を備えたことを特徴とする。
前記海水導入手段は、
前記ボイドスペース内に設けられた海水導入開閉弁と、
前記海水導入開閉弁に接続され前記水密甲板に開口する海水導入管を有すると共に、
前記水密甲板上の前記水密扉の近傍に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
前記海水導入開閉弁を操作する弁遠隔操作棒と、
前記弁遠隔操作棒の先端に設けられた弁操作ハンドルと、
を備えたことを特徴とする。
前記海水導入手段は、
前記水密甲板の舷側近傍に開けられた海水導入孔と、
前記海水導入孔を囲むように前記最下層の水密甲板の下面に設けられた水密箱と、
前記水密箱の側面に開けられた第2の海水導入孔とを有すると共に、
前記水密甲板上の前記水密扉の近傍に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
を備えたことを特徴とする。
前記海水導入手段は、前記水密甲板の左右舷に設けられた複数本の空気抜き管を連通する縦通連通管であり、
前記水密甲板上の船側外板の近傍に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
を備えたことを特徴とする。
前記ボイドスペースに水位計を備えると共に、前記水位計からの信号を受信して前記ボイドスペース内の海水のレベルを表示する海水レベル表示器を備えたことを特徴とする。
2 船側外板
3 船底外板
4 乾舷甲板
5a、5b 水密甲板
6 車両搭載用の非水密甲板
7 バラストタンク
8、8a ボイドスペース
9 配管
10 空気抜き管
11 浸水検知装置
12 水位計
13 海水導入孔
14 水密箱
15 第2の海水導入孔
16 水密扉
17 海水導入管
18 海水導入開閉弁
19 弁遠隔操作棒
20 弁操作ハンドル
21 縦通連通管
22 ストッパ
23 油圧シリンダ装置
24 水密扉開放装置
25 海水導入手段
30 復原力監視制御装置
31 浸水表示器
32 自動開放判定器
33 手動/自動切換え器
34 手動の水密扉操作器
35 海水レベル表示器
36 自動開放条件入力端
L1 検出信号線
L2 海水レベル検出信号線
L3 弁操作信号線
L4 開放条件信号線
CS 車両搭載区画
図1は、本発明の第1の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船の正面断面図、図2は、同復原力監視制御装置の回路図である。
図3は、本発明の第2の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船の正面断面図、図4は、本発明の第3の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船の正面断面図、図5は、本発明の第4の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船の正面断面図、図6は、本発明の第5の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船の正面断面図である。
図1に図示のように、自動車運搬船1は、船側外板2と船底外板3とにより、横断面形状が略箱状に形成されている。
この自動車運搬船1の内部は、乾舷甲板4(車両搬出入甲板、水密甲板)、複数層の車両搭載用の水密甲板5a、5b及び多数層の車両搭載用の非水密甲板6が設けられている。
この乾舷甲板4には、車両がロールオン・ロールオフするために図示略の船外ランプが連結されている。
自動車運搬船1に最下部には、車両搭載用の水密甲板5aが設けられ、乾舷甲板4の上部にも車両搭載用の水密甲板5bが設けられている。
更に、乾舷甲板4と上部の車両搭載用の水密甲板5bとの間、乾舷甲板4と最下部の車両搭載用の水密甲板5aとの間には、少なくとも1層以上の車両搭載用の非水密甲板6が設けられている。
そして、乾舷甲板4、複数層の水密甲板5a、5b、多数層の非水密甲板6間に、多数層(例えば、10~12層)の車両搭載区画CSが形成されている。
なお、燃料タンクの場合は、船底損傷時に燃料が流出するのを防止するために二重殻する必要があり、船底外板3から上方に離れて設けられている。
船底外板3と最下部の水密甲板5a或いはバラストタンク7(或いは、燃料タンク等)のタンク底板との間には、ボイドスペース8(パイプスペース)が形成されており、このボイドスペース8には、バラスト水、燃料等搬送用の多数本の配管9が配設されている。
本実施の形態の船舶の復原力回復装置及びこれを備えた自動車運搬船は、このボイドスペース8の膨大な予備浮力を有しておりながら、予備浮力を有効に活用できない船舶に対して、残存復原力を回復させようとするものである。
従来の船舶では、満載状態では要求値を満足するものの、特に軽荷状態では残存復原力が不足し、要求値を満足できていない船舶が多々見受けられてる点に着眼している。
なお、従来の考え方では、浸水区画の容積を減らし、損傷時の残存復原力を確保するのが通例であるが、本実施の形態の船舶の復原力回復装置及びこれを備えた自動車運搬船によれば、満載状態では要求値を満足できることから、膨大な予備浮力を有効活用し残存復原力を確保するために、浸水容積を増し浸水後の喫水を深くし、復原力(GZ)確保を確保しようとするものである。
水密扉16は、図2に図示のように、海水導入孔13のフランジ等に、一端がヒンジピン等により連結され、他端がストッパ22(キー等の形態のものも含む)により閉じられている。
このストッパ22には、油圧シリンダ装置23が連結されている。
そして、ストッパ22及び油圧シリンダ装置23により構成された水密扉開放装置24を駆動させることにより、ストッパ22が水密扉16から外れ、水密扉16が開くようになっている。
また、図示を省略しているが、油圧シリンダ装置23とは、油圧シリンダのみならず、作動油の流れを制御する各種の弁類及び弁類を駆動する電磁コイル等を含むものである。
なお、従来の自動車運搬船1等においては、最下部の車両搭載用の水密甲板5aにハッチ等が設けられているものも存在していた。
しかしながら、従来のハッチは多数のボルトナット等により閉じられており、ハッチを開放するためにはハッチに近づいて多数のナットを外す必要があった。
一方、本実施の形態における最下部の車両搭載用の水密甲板5aに設けられた海水導入手段25は、遠隔操作により開放できるようになっている。
したがって、従来のハッチ等とは異なり、その場所に海水が浸水しても簡単に遠隔で海水導入手段25を開放することができるものである。
この浸水検知装置11は、左右舷の船側外板2付近に、船首尾方向に各々複数個(例えば、船首付近、中央、船尾付近の少なくとも3箇所)に設けることが望ましい。
従来の船舶においては、ボイドスペース8内には海水を導入しないことを前提としており、船底外板3上面付近に簡単なレベルスイッチ(例えば、ビルジポンプ発停用のフロートスイッチ)等が設けられている程度であった。
本実施の形態のものでは、ボイドスペース8内に海水を導入するものであるため、ボイドスペース8内に水位計12が設けられている。
この水位計12は、例えば、ボイドスペース8の下部、上部、中央位置の少なくとも3箇所にレベルスイッチ(フロートスイッチ)を設けたものとすることができる。
なお、水位計12に替えて、測深管を採用しても良い。
復原力監視制御装置30と水密扉16を駆動する水密扉開放装置24とは、弁操作信号線L3により接続されている。
復原力監視制御装置30と浸水検知装置11とは、検出信号線L1により接続されている。
復原力監視制御装置30と水位計12とは、海水レベル検出信号線L2により接続されている。
この自動開放条件入力端36に入力される船舶の状態(自動開放判定条件)としては、例えば、自動車運搬船1が軽荷状態であるという信号、既存の喫水計にて計測された自動車運搬船1の喫水が所定値(軽荷状態)以下であるとういう喫水計からの信号、或いは、自動車運搬船1が許容値以上傾いているという傾斜計からの信号、自動車運搬船1が強い衝撃を受けたという衝撃加速度計からの信号、強風であるという風速計からの信号等がある。
これらの各自動開放判定条件は、開放条件信号線L4を介して入力されるようになっている。
自動開放条件入力端36に入力された信号は、自動開放判定器32に送信される。
例えば、浸水検知且つ異常傾斜のとき、或いは、浸水検知、且つ浅喫水(軽荷状態)である、異常傾斜している、強い衝撃を受けた、強風であるとの全ての条件が重なったとき等に、自動開放要と判定する。
手動/自動切換え器33は、手動に切換えられているときは、手動の水密扉操作器34からの信号を選択して水密扉開放装置24に弁操作信号線L3を介して送信し、自動に切換えられているときは、自動開放判定器32からの信号を選択して弁操作信号線L3を介して送信する。
復原力監視制御装置30では、浸水表示器31(浸水表示ランプ、或いはテレビ画像)に、その情報が表示される。
すると、その操作信号は、弁操作信号線L3を介して水密扉開放装置24の油圧シリンダ装置23に送信され、油圧シリンダ装置23は駆動しストッパ22が水密扉16から外れ、水密扉16が開放される。
そして、自動開放判定器32では、自動開放条件入力端36から自動開放条件信号を受信していた場合、海水が最下層の車両搭載区画CS内に進入したものと判断さる。
すると、自動開放判定器32から、直ちに弁操作信号線L3を介して水密扉開放装置24の油圧シリンダ装置23に油圧シリンダ装置23を駆動する操作信号が発信される。
水密扉開放装置24では、油圧シリンダ装置23によりストッパ22は水密扉16から外され、水密扉16が開放される。
このようにして、海水導入手段25は遠隔にて開放操作される。
また、ボイドスペース8内に進入した海水の状態(水位)は、水位計12にて検出され、その検出信号は海水レベル検出信号線L2を介して復原力監視制御装置30内の海水レベル表示器35に表示される。
なお、ボイドスペース8内に溜まった海水は、図示略の通常のビルジポンプ等により船外に排出する。
次に、図3(及び図2)に基づき、本発明の第2の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船につき説明する。
本発明の第2の実施形態のものは、図1に図示の本発明の第1の実施形態のもののように水密甲板5aに水密扉16が直接設けられているのではなく、水密甲板5aの左右舷に各々海水導入孔13が明けられ、各海水導入孔13を囲む水密箱14が水密甲板5aの下面に各々設けられ、この各水密箱14の側面に第2の海水導入孔15が明けられ、この各第2の海水導入孔15に水密扉16が設けられている。
また、水密扉16は、ストッパ22及び油圧シリンダ装置23により開放可能になるようになっている。
なお、空気抜き管10と水密箱14とは、重ならないようになっている。
次に、図4に基づき、本発明の第3の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船につき説明する。
本発明の第3の実施形態のものは、図1に図示の本発明の第1の実施形態のものの水密扉16等に替えて、海水導入開閉弁18が設けられている。
そして、海水導入開閉弁18は、乾舷甲板4より上方迄延在する弁遠隔操作棒19及び、弁遠隔操作棒19の上端に設けられた弁操作ハンドル20により開閉できるようになっている。
なお、遠隔で開放操作可能な海水導入手段25は、海水導入管17、海水導入開閉弁18等により構成されている。
この場合、図4に点線で図示のように、海水導入開閉弁18には、遠隔操作用の弁操作信号線L3が接続されている。
この場合、復原力監視制御装置30には、図2に図示のように、自動開放判定器32、手動/自動切換え器33、手動の水密扉操作器34、自動開放条件入力端36も有している。
次に、図5に基づき、本発明の第4の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船につき説明する。
本発明の第4の実施形態のものは、図3に図示の本発明の第2の実施形態のものに対し、水密扉16を省略したものである。
この場合、ボイドスペース8aは、車両搭載区画と看做されるため、車両搭載区画CSと同様の設備(火災検知器、スプリンクラー、照明等)を設ける必要がある。
なお、空気抜き管10は水密箱14に通じるようにしても良く、重ならないようにしても良い。
そして、遠隔で開放操作可能な海水導入手段25は、海水導入孔13、水密箱14、フランジ、第2の海水導入孔15等により構成されている。
次に、図6に基づき、本発明の第5の実施形態に係る船舶の復原力回復装置を備えた自動車運搬船につき説明する。
本発明の第5の実施形態のものは、自動車運搬船1の船側外板2に沿って複数本設けられている空気抜き管10を利用して、船首尾方向に船側外板2に沿って延在すると共に複数本の空気抜き管10を連通する縦通連通管21が設けられている。
この縦通連通管21は、乾舷甲板4より下方において、水密甲板5aの上部の車両搭載区画CS及び下部の車両搭載区画CSに2本(左右舷合わせて合計4本)設けられている。
そして、遠隔で開放操作可能な海水導入手段25は、空気抜き管10、縦通連通管21等により構成されている。
すると、海水は、破損した箇所から縦通連通管21、空気抜き管10を通り、ボイドスペース8内に流入する。
更に、ボイドスペース8は、車両搭載区画ではないため、本発明の第4の実施形態のもののように車両搭載区画CSと同様の設備(火災検知器、スプリンクラー、照明等)を設ける必要もない。
Claims (12)
- 船舶の船底のボイドスペース上の最下層の水密甲板に遠隔で開放可能な海水導入手段を備えたことを特徴とする船舶の復原力回復装置。
- 前記海水導入手段は、
前記水密甲板の舷側近傍に開けられた海水導入孔と、
前記海水導入孔の下面を塞ぐ水密扉と、
前記水密扉を開放する水密扉開放装置とを備えたことを特徴とする請求項1に記載の船舶の復原力回復装置。 - 前記海水導入手段は、
前記水密甲板の舷側近傍に開けられた海水導入孔と、
前記海水導入孔を囲むように前記水密甲板の下面に設けられた水密箱と、
前記水密箱の側面に開けられた第2の海水導入孔と、
前記第2の海水導入孔を塞ぐ水密扉と、
前記水密扉を開放する水密扉開放装置とを備えたことを特徴とする請求項1に記載の船舶の復原力回復装置。 - 前記水密甲板上に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
前記水密扉を開放するための操作信号を前記水密扉開放装置に出力する水密扉操作器とを備えたことを特徴とする請求項2又は3に記載の船舶の復原力回復装置。 - 前記船舶の非水密区画に復原力監視制御装置を備え、
前記浸水表示器及び前記水密扉操作器は、前記復原力監視制御装置に設けられていることを特徴とする請求項4に記載の船舶の復原力回復装置。 - 前記復原力監視制御装置は、
前記船舶の状態が入力される自動開放条件入力端と、
前記前記浸水検知装置からの浸水を検知した信号と自動開放条件入力端に入力された前記船舶の状態とに基づき前記水密扉を自動開放するか否かを判定し、自動開放と判定した場合に水密扉を開放する操作信号を出力する自動開放判定器と、
前記水密扉操作器からの操作信号及び前記自動開放判定器からの操作信号のいずれかを選択して前記水密扉を開放するための操作信号を前記水密扉開放装置に出力する手動/自動切換え器とを備えたことを特徴とする請求項5に記載の船舶の復原力回復装置。 - 前記ボイドスペースに水位計を備えると共に、前記復原力監視制御装置に前記水位計からの信号を受信して前記ボイドスペース内の海水のレベルを表示する海水レベル表示器を備えたことを特徴とする請求項5又は6に記載の船舶の復原力回復装置。
- 前記海水導入手段は、
前記ボイドスペース内に設けられた海水導入開閉弁と、
前記海水導入開閉弁に接続され前記水密甲板に開口する海水導入管を有すると共に、
前記水密甲板上の前記水密扉の近傍に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
前記海水導入開閉弁を操作する弁遠隔操作棒と、
前記弁遠隔操作棒の先端に設けられた弁操作ハンドルと、
を備えたことを特徴とする請求項1に記載の船舶の復原力回復装置。 - 前記海水導入手段は、
前記水密甲板の舷側近傍に開けられた海水導入孔と、
前記海水導入孔を囲むように前記最下層の水密甲板の下面に設けられた水密箱と、
前記水密箱の側面に開けられた第2の海水導入孔とを有すると共に、
前記水密甲板上の前記水密扉の近傍に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
を備えたことを特徴とする請求項1に記載の船舶の復原力回復装置。 - 前記海水導入手段は、前記水密甲板の左右舷に設けられた複数本の空気抜き管を連通する縦通連通管であり、
前記水密甲板上の船側外板の近傍に設けられた浸水検知装置と、
前記浸水検知装置が浸水を検知したことを表示する浸水表示器と、
を備えたことを特徴とする請求項1に記載の船舶の復原力回復装置。 - 前記ボイドスペースに水位計を備えると共に、前記水位計からの信号を受信して前記ボイドスペース内の海水のレベルを表示する海水レベル表示器を備えたことを特徴とする請求項8乃至10のいずれかに記載の船舶の復原力回復装置。
- 請求項1乃至11のいずれかに記載の船舶の復原力回復装置を備えたことを特徴とする自動車運搬船。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08826096.3A EP2305555B1 (en) | 2008-08-12 | 2008-08-12 | Righting moment recovery apparatus for marine vessel, and automobile carrying vessel equipped with the same |
CN2008800003642A CN101743161B (zh) | 2008-08-12 | 2008-08-12 | 船舶的复原力恢复装置以及具备该装置的汽车运输船 |
PCT/JP2008/064445 WO2010018618A1 (ja) | 2008-08-12 | 2008-08-12 | 船舶の復原力回復装置及びこれを備えた自動車運搬船 |
US12/309,647 US8087370B2 (en) | 2007-02-21 | 2008-08-12 | Ship stability recovery system and car carrier equipped with the same |
ES08826096T ES2701428T3 (es) | 2008-08-12 | 2008-08-12 | Aparato de recuperación de momento de enderezamiento para embarcación marina, y buque de transporte de automóviles equipada con el mismo |
NO20090168A NO340037B1 (no) | 2008-08-12 | 2009-01-12 | Stabilitetsgjenopprettingssystem for skip, og bilskip forsynt med dette |
NO20160708A NO20160708A1 (no) | 2008-08-12 | 2016-04-27 | Stabiliseringsinnhentingssystem for et skip. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/064445 WO2010018618A1 (ja) | 2008-08-12 | 2008-08-12 | 船舶の復原力回復装置及びこれを備えた自動車運搬船 |
Publications (1)
Publication Number | Publication Date |
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WO2010018618A1 true WO2010018618A1 (ja) | 2010-02-18 |
Family
ID=40544678
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2008/064445 WO2010018618A1 (ja) | 2007-02-21 | 2008-08-12 | 船舶の復原力回復装置及びこれを備えた自動車運搬船 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2305555B1 (ja) |
CN (1) | CN101743161B (ja) |
ES (1) | ES2701428T3 (ja) |
NO (2) | NO340037B1 (ja) |
WO (1) | WO2010018618A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016041557A (ja) * | 2014-08-19 | 2016-03-31 | 三菱重工業株式会社 | 船舶 |
Families Citing this family (2)
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JP5596084B2 (ja) * | 2012-06-27 | 2014-09-24 | 三菱重工業株式会社 | 船舶 |
CN113830222B (zh) * | 2021-10-25 | 2023-03-24 | 广船国际有限公司 | 一种船用舱室和船舶 |
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JPH07304490A (ja) * | 1994-05-12 | 1995-11-21 | Hideo Nakada | 転覆防止船舶 |
JP2004009950A (ja) * | 2002-06-10 | 2004-01-15 | Mitsubishi Heavy Ind Ltd | ウォータトラップ代替要素 |
JP2007153242A (ja) * | 2005-12-08 | 2007-06-21 | Naikai Zosen Corp | 自動車運搬船 |
JP2008094345A (ja) * | 2006-10-16 | 2008-04-24 | Mitsui Eng & Shipbuild Co Ltd | 船体損傷時の復原性改善方法及び船舶 |
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CN2156128Y (zh) * | 1993-01-14 | 1994-02-16 | 国营襄樊船厂 | 轿车运输船 |
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FI98290C (fi) * | 1995-02-08 | 1997-05-26 | Kvaerner Masa Yards Oy | Vedentasausjärjestely |
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JP2003104279A (ja) * | 2001-10-01 | 2003-04-09 | Shipbuilding Research Centre Of Japan | 大型輸送船 |
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2008
- 2008-08-12 WO PCT/JP2008/064445 patent/WO2010018618A1/ja active Application Filing
- 2008-08-12 ES ES08826096T patent/ES2701428T3/es active Active
- 2008-08-12 CN CN2008800003642A patent/CN101743161B/zh active Active
- 2008-08-12 EP EP08826096.3A patent/EP2305555B1/en active Active
-
2009
- 2009-01-12 NO NO20090168A patent/NO340037B1/no unknown
-
2016
- 2016-04-27 NO NO20160708A patent/NO20160708A1/no unknown
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JPH07304490A (ja) * | 1994-05-12 | 1995-11-21 | Hideo Nakada | 転覆防止船舶 |
JP2004009950A (ja) * | 2002-06-10 | 2004-01-15 | Mitsubishi Heavy Ind Ltd | ウォータトラップ代替要素 |
JP2007153242A (ja) * | 2005-12-08 | 2007-06-21 | Naikai Zosen Corp | 自動車運搬船 |
JP2008094345A (ja) * | 2006-10-16 | 2008-04-24 | Mitsui Eng & Shipbuild Co Ltd | 船体損傷時の復原性改善方法及び船舶 |
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Also Published As
Publication number | Publication date |
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CN101743161B (zh) | 2013-09-04 |
CN101743161A (zh) | 2010-06-16 |
EP2305555B1 (en) | 2018-10-03 |
NO20090168L (no) | 2009-02-16 |
NO20160708A1 (no) | 2016-04-27 |
NO340037B1 (no) | 2017-03-06 |
ES2701428T3 (es) | 2019-02-22 |
EP2305555A4 (en) | 2017-01-11 |
EP2305555A1 (en) | 2011-04-06 |
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