JPH0848282A - Method and apparatus for urgently towing ship - Google Patents

Abstract

PURPOSE:To facilitate the approach of a rescue tag boat and the taking-up of a rope by allowing the taking-up rope with buoys to be dropped on the sea by its own weight and expanded on the sea by the buoys disposed on the rope when a receiving box is opened by the directions or the like from a steering house of a bridge in an emergency. CONSTITUTION:A bottom plate 8 is opened by the manual operation of an operator or the remote operation from a steering house of a bridge. Then, a taking-up rope 5, connecting wire 3 and rope 4 received in a receiving box 7 are dropped onto the sea by their own weight. The taking-up rope 5 is expanded on the sea by the buoyancy of the ropes 4, 5 and buoys 6. This receiving box 7 may be of a bottom plate opening type or side plate opening type. A towing wire rope 1 is inserted through a bracket 9 fixed to the broadside of a ship and rewound around a rewinding drum 10 to be disposed therein.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention drops a towing wire rope with a float into the sea from the bow and / or stern of a ship that cannot be steered or navigated by itself due to engine failure or the like. Let the tugboat pick up the rope,
A method and apparatus for towing the vessel to a safe position.

[0002]

2. Description of the Related Art Ships, especially large oil carriers, are unable to steer by themselves due to engine malfunctions, etc., and are stranded after being drifted by waves or colliding with offshore structures, damaging the hull and loading them. The number of accidents causing spillage of oil, especially crude oil, to the sea and causing serious marine pollution and environmental destruction has been increasing in recent years. Various measures have been taken in the past to prevent such accidents, but none were effective, including measures to minimize the spread of damage after the accident occurred. .
After all, the most effective measure to prevent accidents of this kind is to quickly tow a ship that has lost its ability to steer itself out of the dangerous sea area using a rescue tugboat, etc. In the guideline dated February 1994, the Agency recommends that large oil vessels be equipped with emergency towing equipment at all times.

Various types of emergency towing equipment have been devised as equipment to be equipped on ships. The most primitive thing is to throw the towing wire rope from the broken ship to the rescue ship, but the work requires skill and the range of throwing the wire rope is limited due to the weight of the towing wire rope. Often it is useless. The next thought was to pull out a lifting rope with an appropriate number of floats at the tip of the towing wire rope from the faulty vessel to the surrounding sea, and when the tugboat picked up the lifting rope and pulled it up, it was connected to the rope. The towing wire ropes are sequentially paid out from the faulty vessel toward the tugboat, and the respective ends of the towing wire ropes are fixed to the faulty vessel and the hull of the tugboat before the towing work is started. is there. In order to make the throwing direction of the pick-up rope more accurate, the tip portion of the rope can be fired in an appropriate direction by a sword gun.

[0004]

The pick-up rope and the tow wire rope are usually wound around a drum or the like at an appropriate position on the bow or stern deck, but they are pulled out in an emergency and thrown to the sea surface outside the ship. In order to do so, considerable technology is required. Even if you hit the rope for picking up with a sham gun, if you neglect the daily maintenance and inspection, it will not be useful in an emergency, and there will be no operator in an emergency, so it will end accidentally and drift of the broken ship, It leads to a serious accident such as grounding. Therefore, in this type of emergency towing method and device: 1. Deploying the rope for picking up quickly and reliably on the sea around the broken ship. 2. Always keep the towing wire rope in a stretched state so that it can be stretched and deployed on the sea surface. It has been a necessary technical issue to provide a braking means so that the towing wire rope is not unwound excessively.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a pick-up rope is connected to one end of a tow wire rope through a towing socket, a connecting wire, and a connecting rope. A plurality of floats equipped with position display means are arranged at appropriate intervals, and the towing wire rope is inserted into a bracket fixed to the port side of the ship, and the end stopper is provided at the other end of the towing wire rope. One end of the rewinding wire rope is connected through the rewinding wire rope, and the other end of the towing wire rope is wound around the rewinding drum together with the rewinding wire rope, and the rewinding means and the braking means are attached to the drum. In an emergency ship towing method and device for controlling the unwinding and unwinding of a rewinding wire rope, a rope for taking up and a wire for connecting and a rope for connecting Is stored in a storage box attached to the side of the ship's side, and the operator opens the bottom plate or side plate of the storage box or rolls the storage box to open the storage box, or these By performing the operation by remote control from the wheelhouse of the bridge, the pick-up rope and the connecting wire rope that were stored in the storage box were dropped onto the sea surface by their own weight, and the plurality of pick-up ropes It is deployed on the surface of the sea by the buoyancy of the float to facilitate the approach of a rescue tugboat and the rope pick-up.

According to the present invention, the towing wire rope is housed in a rewinding drum installed on the port side or deck of the ship, and the rewinding drum moves from the rewinding drum along with the unwinding of the lifting rope onto the sea surface. The towing wire rope is sequentially withdrawn, and is extended until an end stopper attached to the other end of the towing wire rope comes into contact with the back surface of the bracket. The bracket into which the tow wire rope is inserted has a tow wire rope of ± 90 in the lateral direction from the port side of the ship.
The tip is flared so that it can bend downwards by about 45 °. A rewinding wire rope is connected to the end stopper, and the rewinding wire rope is wound around a brake and a rewinding handwheel or a winding drum provided with an air motor. For this reason, the feeding of the towing wire rope from the drum is controlled, and after the towing operation is completed, the wire rope for unwinding is quickly rewound and stored in the rewinding drum.

[0007]

Since the present invention is constructed as described above, it has the following operations. 1. In an emergency, when the storage box is opened by an instruction from the wheelhouse of the bridge or by remote control, the lifting rope with float is dropped on the sea surface by its own weight, and it is widely deployed on the sea surface by the floats arranged on the rope and rescued. Facilitates approaching tugs and picking up ropes. If a position display means such as an illuminating lamp or a smoke tube is attached to the float, the rescue tugboat can be easily approached. 2. The towing wire rope that can withstand high loads is always stored by being wound around the rewinding drum, so it is easy to maintain and handle, and when the towing wire rope is unwound in an emergency, the rescue tugboat pulls up the rope. The end of the towing wire rope can be easily gripped by handing. Then, when the end stopper at the other end of the towing wire rope comes into contact with the back surface of the bracket fixed to the port side surface, the feeding of the rope is stopped and towing is started. At that time, since the tip end of the bracket expands like a trumpet, the towing wire rope can be towed at a wide angle from the port side of the ship. 3. The towing wire rope is fed out while being controlled by the braking action of the rewinding drum, and is easily pulled back to the rewinding drum by operating the motor of the drum.

[0008]

FIG. 1 shows an embodiment of the present invention. In the apparatus for carrying out the method of the present invention, a picking rope 5 is connected to one end of a towing wire rope 1 via a towing socket 2, a connecting wire 3 and a connecting rope 4. The connecting wire 3 is a short rope for lifting the heavier tow wire rope 1 and has a length more than twice the distance from the sea surface to the deck in an empty state in consideration of safety in case of fire. It is necessary. The connecting rope 4 and the pickup rope 5 are longer and lighter fiber ropes and are adapted to be deployed on the sea surface away from the ship. Further, a plurality of floats 6 provided with appropriate position display means such as illumination lamps, smoke tubes, color markers and the like are arranged on the pick-up rope 5 at appropriate intervals. When the rescue tug holds the pick-up rope, it pulls the connecting rope and winds the connecting wire around the bracket or drum of the boat to start towing.

The diameter and length of the towing wire rope 1 are appropriately determined according to the size of the ship on which the wire rope 1 is mounted. Its caliber and length depend on the size of the ship on which it is mounted.
The diameter varies from 0 to 100 mm and the length from 60 to 150 m, but as an example, 77 mm diameter, maximum 90 m, minimum breaking load 4000
A kN steel rope is used. Further, the towing socket 2 and the end stopper 11, which will be described later, are alloyed with a strength sufficient to withstand the breaking load of the rope 1. The connecting wire and rope, and the pick-up rope should be lighter and thinner. As an example, the connecting wire 3 is 20 mm
Diameter, maximum 50m steel rope, 44mm as connecting rope 4
Fiber rope with a diameter of up to 200 m is used. A fiber rope having a diameter of 24 mm and a maximum length of 50 m is used as the pick-up rope 5.

The pick-up rope 5, together with the connecting wire 3 and the connecting rope 4, is housed in an openable storage box 7 attached to the side of the ship's port, and an operator operates the handle to operate the bottom plate of the storage box. 8 is opened or the bottom plate 8 is opened by remote control from the wheelhouse of the bridge, the lifting rope 5, the connecting wire 3 and the rope 4 stored in the storage box are dropped onto the sea surface by their own weight. It is deployed on the sea surface by the buoyancy of the rope itself and the float 6. The storage box 7 is not of the bottom opening type shown in FIG. 1, but as shown in FIG. 2, (a) the side plate 8'of the box opens to drop the rope in the box, or (b) the box 7 itself. Various examples are conceivable, such as rolling over and releasing the rope onto the sea surface, but in short, it operates reliably in an emergency, and the rope group is dropped onto the sea surface by its own weight,
A type that can be quickly deployed on the sea surface with a rope and float is desirable.

The towing wire rope 1 is inserted through a bracket 9 fixed to the port side of the ship, and rewound and stored in a rewinding drum 10 arranged on the port side or on the deck.
The bracket 9 is provided with a receiving surface of an end stopper 11 for feeding the towing wire rope 1 for a fixed length and then stopping the rope to start the towing operation. As shown in the vertical cross section of FIG. 3 taken in the direction of arrow II-II of FIG. 1, and the cross-sectional view of FIG. 4 taken in the direction of arrow III-III of FIG. 1, the bracket 9 has a tow wire rope on the port side of the ship. Approximately 45 ° downward from the plane, ± 9 laterally
The tip is flared so that it can bend to 0 °.

One end of a rewinding wire rope 12 is connected to the other end of the towing wire rope 1 via an end stopper 11. The other end of the wire rope 12 is wound around a rewinding drum 10, and the drum 10 is manually rewound, or an air motor 13 and a centrifugal brake 14 as a braking means are attached to the rewinding wire 10. The feeding and rewinding of the rope 12 is controlled. As an example of the unwinding wire rope 12, 20
Use a steel rope with a diameter of mm and a maximum length of 10 m. Rewinding drum 1
0 is for properly winding the wire ropes 1 and 12,
It is installed at a position at least 3 m away from the back surface of the bracket 9. The bearing portion 15 of the drum 10 has an iron plate welding structure,
Weld directly to the floor on the deck of the ship.

The emergency towing device is usually arranged so as to pay out the towing wire rope from the starboard or port side of the ship toward the stern, but in the case of a large ship, for example, as shown in FIG. A plurality of them can be arranged.

[0014]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, the operator can drop the storage box in an emergency and drop the towing wire rope pulling rope onto the sea surface by utilizing its own weight. Then, the rescue tugboat can quickly and surely grasp one end of the towing wire rope to perform the towing operation. In addition, the towing wire rope is always wound around the drum together with the rewinding wire rope, so that it can be easily unwound, and the tucker wire rope provided on the bracket through which the tow wire rope is inserted allows the hull to move out of the hull. The towing wire rope can be towed from the port side to the left and right and downward at a wide angle. Further, the other end of the towing wire rope is connected to a rewinding wire rope via an end stopper, and the rewinding wire rope is wound around a rewinding drum equipped with a motor and a brake, so the towing wire rope is The control is performed so that the feeding out of the ship does not become excessive, and the rewinding after the completion of the towing work is easy. Further, even when a plurality of the present devices are arranged, a small volume is sufficient, so that the operation of other marine equipment is not hindered.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of an emergency towing device for a ship according to the present invention.

FIG. 2 is another embodiment of the storage box of the device of the present invention, in which (a) shows a lateral opening and (b) shows a lateral turning type.

FIG. 3 is a vertical sectional view of a bracket portion of one embodiment of the device of the present invention.

FIG. 4 is a cross-sectional view of a bracket portion of an embodiment of the device of the present invention.

FIG. 5 is a conceptual diagram of a ship in which a plurality of ship emergency towing devices according to the present invention are arranged.

[Explanation of symbols]

 1 Towing wire rope 2 Towing socket 3 Connecting wire 4 Connecting rope 5 Lifting rope 6 Float 7 Storage box 8 Bottom plate 8'Side plate 9 Bracket 10 Rewinding drum 11 End stopper 12 Rewinding wire rope 13 Air Motor 14 Centrifugal brake 15 Bearing part

Claims (7)

[Claims] 1. A towing wire rope is inserted through a bracket fixed to a port side of a ship, and a towing wire rope is connected to one end of the towing wire rope via a connecting wire and the connecting rope to form a towing rope. Is a method in which a suitable number of floats are placed at intervals and are dropped from the ship to the surface of the sea, and the rescue tugboat picks them up and tows them. It is stored in the storage box attached to the port side of
An emergency towing method for ships, wherein the storage box is opened in an emergency so that the pickup rope, the connecting wire and the connecting rope stored in the storage box are dropped onto the sea surface by their own weight. 2. The feeding of the wire rope is controlled by winding the unwinding wire rope and the towing wire rope connected to the other end of the towing wire rope around the unwinding drum having the unwinding means and the braking means. The emergency towing method for a ship according to claim 1, wherein 3. The towing wire rope (1) is inserted into a bracket (9) fixed to the port side of the ship, and
One end of the wire rope (1) is connected to a pick-up rope (5) via a towing socket (2), a connecting wire (3) and a connecting rope (4), and an illumination lamp is attached to the rope (5). In a device in which a plurality of floats (6) having appropriate position display means are arranged at appropriate intervals, the pick-up rope (5), the connecting wire (3), and the connecting rope (4) are It is stored in a storage box (7) attached to the port side of the container, and by opening the storage box, the pick-up rope (5), the connecting wire (3) and the connecting wire which are stored in the storage box are connected. An emergency towing device for ships in which the rope (4) is dropped onto the sea surface by its own weight. 4. The emergency towing device for a ship according to claim 3, wherein the opening of the storage box is performed by remote control from a steering room. 5. The towed wire rope (1) that has been inserted is laterally ± 90 ° from the port side of the ship and approximately 45 ° downward.
4. A bracket (9) having a trumpet-shaped end portion that is bent so that it can be bent up to, is attached to the port side of the ship.
Or the emergency towing device for a ship according to item 4. 6. A rewinding drum (10) having a rewinding wire rope (12) connected to the other end of the towing wire rope (1) through an end stopper (11) mounted on the deck of a ship. ) The emergency towing apparatus for a ship according to claim 1, wherein the emergency towing device is wound around the ship. 7. A brake (14) for controlling the feeding of the towing wire rope (1) to the rewinding drum (10).
An emergency towing device for a ship according to claim 6, comprising: