JPH11291981A - Method and apparatus for recovering underwater vehicle - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the labor burden of an operator by allowing an underwater vehicle to be easily and safely lifted onto a ship. SOLUTION: A swash plate 5 is inserted obliquely into the water from the side of the unloading ship 6, and the underwater vehicle 2 captured by covering the unloading net 1 underwater is submerged at the lower end of the swash plate 5. The underwater vehicle 2 is lifted diagonally while supporting the underwater vehicle 2 with the lifting swash plate 5 by pulling the lifting rope 4 squeezing the opening 3 of the lifting net 1 from above the ship.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for recovering an underwater vehicle.

[0002]

2. Description of the Related Art Conventionally, when a relatively small underwater vehicle launched into the water from a launch pad on a ship is lifted on board after completing a predetermined experiment, a diver lifts the underwater vehicle. Captured by catching the net, drawing it close to the unloading ship,
After that, several workers on board the ship, leaning out of the side and lifting the underwater vehicle along with the lifting net to recover the ship.

[0003]

However, a worker on the ship must lift the underwater vehicle in an unstable posture leaning out from the side, and furthermore, the unloading ship is swung by the waves. Since the work had to be done carefully so as not to hit the underwater vehicle on the hull, there was a problem that the labor for lifting the underwater vehicle on board the ship was heavy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the labor burden on an operator by allowing an underwater vehicle to be easily and safely lifted onto a ship.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a swash plate is inserted obliquely into the water from the side of the unloading vessel, and the underwater vehicle captured by catching the underwater net with a sewage net is inserted into the unloading swash plate. Moving above the submerged lower end portion, and pulling a lifting rope for narrowing the mouth of the lifting net from above the ship, and diagonally lifting the underwater vehicle while supporting it with the lifting swash plate. And a method for recovering an underwater vehicle.

When the underwater vehicle is lifted obliquely while supported by the lifting swash plate, the underwater vehicle can be lifted as compared with the conventional case where the entire weight of the underwater vehicle is raised. The power required for lifting the running body is small, and it is possible to work by pulling the lifting rope in a stable posture at a good position on the ship without leaning from the side, so that the underwater craft It can be easily lifted on board.

In addition, since the underwater vehicle is lifted while sliding on the lifting swash plate, there is no fear that the underwater vehicle will hit the hull even if the unloading ship rocks due to waves. It is possible to safely withdraw the medium running body on board the ship.

In carrying out the method for recovering an underwater vehicle according to the present invention, for example, a lifting swash plate formed so as to be obliquely inserted into the water from the side of the discharging ship, Hanging means provided on the lifting swash plate so that the upper end of the swash plate can be hung on the side strip of the lifting ship, and a lifting slope having the upper end hooked on the side strip by the hanging means. A tilt holding means provided on the lifting swash plate so as to hold the plate at a predetermined tilt angle, and a lifting rope formed so as to be capable of enclosing and catching the underwater vehicle in water and narrowing the net opening And an unloading net equipped with an underwater vehicle.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes an underwater vehicle, which is formed so as to be capable of being captured by being encapsulated in water and having a net opening 3 formed therein. A retrieval net 5 equipped with a squeezing retrieval rope 4 is a long plate-shaped retrieval swash plate formed so as to be able to be inserted obliquely into the water from the side of the retrieval ship 6. On both sides in the width direction on the rear surface of the upper end portion, a hook for hooking the lifting swash plate 5 on the side plate 7 of the lifting ship 6 (the uppermost plate on the outer plate attached to the main deck). 8 (hook means), and the hook 8
At a position further deviated to the outside of the ship, the lifting swash plate 5 whose upper end is hooked to the side plate 7 via the hook 8 is held at a predetermined inclination angle by taking a reaction force on the side surface of the hull. A support diagonal member 9 (tilt holding means) is provided.

Reference numeral 10 denotes a shock-absorbing material mounted on the tip of the support diagonal member 9, reference numeral 11 denotes a diver who performs underwater work, and reference numeral 12 denotes a worker who performs lifting work on a ship.

When an underwater vehicle 2 underwater is to be recovered on a ship, as shown in FIGS. 1 and 2, a worker 12 on the ship obliquely enters the water from the side of the unloading ship 6. The lifting swash plate 5 is inserted into the vehicle, the hook 8 is hung on the side strip 7 and the lifting swash plate 5 is held at a predetermined inclination angle by the support swash 9, while the underwater diver 11 moves underwater. The undercarriage 2 is captured by placing the landing net 1 on the vehicle 2 and then
As shown in the figure, the diver 11 swims to the vicinity of the retrieval ship 6 while pulling the retrieval rope 4 that squeezes the opening 3 of the retrieval net 1 to move the underwater vehicle 2 into the submerged lower end of the retrieval swash plate 5. Then, for example, the lifting rope 4 is thrown up and passed to several workers 12 on the ship, and the lifting rope 4 is pulled to pull the underwater vehicle 2 into the lifting swash plate. Lift it diagonally while supporting it with 5 and recover it on board.

When the underwater vehicle 2 is lifted obliquely while being supported by the lifting swash plate 5, the underwater vehicle 2 can be lifted underwater as compared with the conventional case where the entire weight of the underwater vehicle 2 is lifted. The power required for lifting the body 2 is small, and the work can be performed by pulling the lifting rope 4 in a stable posture at a good position on the ship without leaning on the side of the ship. 2 can be easily lifted on board.

Moreover, since the underwater vehicle 2 is lifted while sliding on the lifting swash plate 5, there is a concern that the underwater vehicle 2 may hit the hull even if the unloading boat 6 rocks due to the waves. It is possible to safely lift the underwater vehicle 2 on board the ship.

Therefore, according to the above embodiment, the underwater vehicle 2 can be easily and safely lifted on board by lifting the underwater vehicle 2 diagonally while supporting it with the lifting swash plate 5. Further, the labor burden on the worker 12 can be greatly reduced as compared with the related art.

Further, since the force required for lifting the underwater vehicle 2 is small, for example, a relatively large underwater vehicle 2 which has conventionally been difficult to lift by hand is also required. The number of cases that can be lifted by hand without using a shipboard crane increases, and even in cases that cannot be lifted by hand, a simple towing device such as a winch can lift the underwater craft 2. With respect to the unloading boat 6 for lifting the relatively large underwater vehicle 2, it is possible to reduce the cost of unloading by eliminating the need for an onboard crane.

The method and apparatus for recovering an underwater vehicle according to the present invention are not limited to the above-described embodiment, and the hooking means and the inclination holding means may employ structures other than those shown. The latching means and the inclination holding means may be integrally configured, and a pivoting mechanism via a pin or the like for allowing the lifting swash plate to slightly move up and down due to the waves is latched. It may be provided in any of the means and the inclination holding means, or may be formed with slits or holes in the lifting swash plate in order to minimize the resistance of water, furthermore,
The inclination holding means may be configured by attaching a float to the back surface of the lifting swash plate, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0018]

According to the above-described method and apparatus for recovering an underwater vehicle according to the present invention, the following various excellent effects can be obtained.

(I) The underwater vehicle can be easily and safely lifted on board by diagonally lifting it while supporting the underwater vehicle with the lifting swash plate. It can be significantly reduced.

(II) Since a small amount of force is required for lifting the underwater vehicle, a relatively large underwater vehicle, for example, which has conventionally been difficult to lift by hand, can also be mounted on a ship. The number of cases that can be lifted by hand without using a crane has increased, and even in cases that cannot be lifted by hand, a simple towing device such as a winch can lift the underwater vehicle. With regard to the unloading vessel for unloading a very large underwater vehicle, it is possible to reduce the unloading cost by eliminating the need for an onboard crane.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an example of an embodiment of the present invention.

FIG. 2 is a side view showing an installed state of the lifting swash plate of FIG. 1;

FIG. 3 is a perspective view showing a lifted state of the underwater vehicle using the lifting swash plate of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Retrieval net 2 Underwater vehicle 3 Net mouth 4 Retrieval rope 5 Retrieval swash plate 6 Retrieval ship 7 Sideboard strip 8 Hook hook (hook means) 9 Support diagonal material (tilt holding means)

Claims (2)

[Claims] 1. An underwater vehicle captured diagonally underwater by inserting a swashplate into the water from the side of the unloading ship and placing the underwater vehicle on the lower submerged lower part of the swashplate. A method of recovering an underwater vehicle, comprising: moving the lifting rope, which narrows the opening of the lifting network, from above the ship, and lifting the underwater vehicle obliquely while supporting the lifting swash plate. . 2. A lifting swash plate formed so as to be inserted obliquely into the water from the side of the unloading ship, and an upper end of the unloading swash plate can be hooked on a side strip of the unloading ship. A latching means provided on the lifting swash plate, and the lifting swash plate is provided on the lifting swash plate so that the lifting swash plate, the upper end of which is hooked to the side strip by the locking means, can be held at a predetermined inclination angle. The underwater vehicle has a tilt holding means and a lifting net formed so as to be capable of enclosing and capturing the underwater vehicle in the water and equipped with a lifting rope for narrowing a net opening. Lifting equipment.