JP2004082809A - Heavy weight transport ship - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heavy weight transport ship capable of sufficiently securing the front visibility from a steering room. <P>SOLUTION: In the heavy weight transport ship 1 wherein a hook 28a is hung from the tip section of the boom 23a rotatably provided through a wire rope 27a, and a crane device 20 is arranged on the deck 11 of a hull to adjust the height of the hook 28a by taking-up the wire rope 27a by means of a winch 26a, the crane 20 is arranged offset toward a broadside from the center line 2 in the longitudinal direction of the deck 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a heavy goods carrier equipped with a crane device on a deck of a hull.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a heavy goods carrier for carrying heavy goods is provided with a crane device on a deck. As a result, even when a crane device is not installed in the port facility, the cargo can be hoisted and unloaded using the crane device on the deck, so that the crane device is generally provided on the deck. .
[0003]
[Problems to be solved by the invention]
However, since the conventional heavy load carrier is provided with a crane device that is a large structure along the center line in the front-rear direction of the deck, the forward view from a wheelhouse provided behind the hull by the crane device is reduced. It was difficult to secure enough.
[0004]
Then, this invention is made in order to solve the above-mentioned subject, and an object of this invention is to provide the heavy goods carrier which can ensure the front view from a steering room sufficiently.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 provides a crane device which adjusts the height of the hook by hanging a hook with a wire rope at the tip of a boom provided rotatably and winding the wire rope with a winch. A heavy goods carrier installed above, wherein the crane device is provided offset from a centerline of the deck in the front-rear direction in a sideward direction.
[0006]
In this heavy load carrier, the crane device is provided offset from the center line of the deck in the front-rear direction in the side of the ship, so that the forward view from the wheelhouse installed behind the hull can be sufficiently secured. Safety during voyage is improved.
[0007]
Also, since the crane device is provided offset, the boom can be extended farther to the outside on the side of the ship, so that sufficient outreach can be ensured, and the loading and unloading of cargo using a small crane device is possible. Becomes possible. Therefore, by reducing the size of the crane device, it is possible to further secure forward visibility from the wheelhouse, reduce the cost of building a ship, and reduce the weight of the crane device by reducing the size. You can increase your cargo by that amount.
[0008]
According to a second aspect of the present invention, in the heavy load carrier according to the first aspect, the crane device is provided on a port side of the deck.
[0009]
In this heavy load carrier, since the crane device is provided on the port side of the deck, it is possible to further secure the right front view from the wheelhouse, so be careful when crossing the course of another ship during navigation. Sufficient visibility on the starboard side, which must be done, further improves safety during the voyage.
[0010]
According to a third aspect of the present invention, in the heavy load carrier according to the first or second aspect, the elevation angle of the crane device is defined according to the weight of the load.
[0011]
In this heavy cargo carrier, the elevation angle of the crane device is defined according to the weight of the load, so that it is possible to carry out lifting and lowering of the heavy cargo with a small crane device. Therefore, by further reducing the size of the crane device, it is possible to further reduce the construction cost of the ship while further securing the front view from the wheelhouse, and to reduce the weight by reducing the size of the crane device. You can increase your load by minutes.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0013]
1 is an upper plan view showing a heavy goods carrier 1 according to an embodiment of the present invention, FIG. 2 is a side view of the heavy goods carrier 1, and FIG. 3 is a rear sectional view taken along line AA in FIG. is there.
[0014]
As shown in FIG. 1, the heavy goods carrier 1 of the present embodiment includes a crane device 20 for loading and unloading cargo on the port side of the center line 2 of the deck 11 and between the two cargo compartments 12a and 12b. Is provided.
[0015]
The crane device 20 is composed of two deck cranes 21a and 21b, each of which is individually and rotatably provided on one main post 13 provided on the deck 11 so as to be rotatable.
[0016]
As shown in FIG. 2, the deck cranes 21 a and 21 b are installed on the port side deck 11 between the two cargo compartments 12 a and 12 b and with respect to the center line 2 extending in the front-rear direction of the heavy cargo carrier 1. Sub-posts 22a and 22b, each of which is pivotably mounted on the main post 13, and booms 23a and 23b which are swingably mounted on the sub-posts 22a and 22b so that the elevation angle can be freely set. Boom wires 24a, 24b, which are wire ropes for adjusting the elevation angle of the boom 23b, boom winches 25a, 25b, which are winches for adjusting the length of the boom wires 24a, 24b, and one end fixed to the tip of the booms 23a, 23b The lifting wires 27a, 2a whose other ends are wound around the lifting winches 26a, 26b and whose length is adjusted. And b, the lifting wire 27a, the hook 28a which cargo is suspended in 27b is hooked, and the 28b are provided.
[0017]
Since the booms 23a and 23b are installed on the subposts 22a and 22b, the booms 23a and 23b are pivoted by pivoting the subposts 22a and 22b, and the lengths of the boom wires 24a and 24b are adjusted by the boom winches 25a and 25b. By doing so, the elevation angles of the booms 23a and 23b are set.
[0018]
Each of the two deck cranes 21a and 21b can independently lift and lower a load. However, when lifting and lowering a heavy load, the two deck cranes 21a and 21b are synchronized. It has a structure that can be used as one deck crane.
[0019]
In the present embodiment, as shown in FIG. 3, the weight of the load to be lifted is defined according to the elevation angle of the booms 23a and 23b, and the smaller the weight of the load, the smaller the elevation angle θ1 of the booms 23a and 23b. So you can
It is possible to lift a load that is within the turning range B of the hooks 28a, 28b shown in FIG. When the load is heavy, the load is lifted within the turning range C of the hooks 28a and 28b by increasing the elevation angle θ2 of the boom.
[0020]
By the way, in a general port wharf, since piles that reach the bedrock are not driven into the vicinity of the quay, heavy loads cannot be supported near the quay, so that heavy loads cannot be brought to the quay. In other words, the outreach of the boom is ensured to cover at least the distance from the quay to the position where the pile is driven and the distance to the quay required when the heavy goods carrier 1 is anchored. Otherwise, heavy loads cannot be lifted and lowered by crane equipment provided on the deck.
[0021]
Therefore, as one of the solutions, it is conceivable to install a large deck crane on the deck, so that a sufficient outreach can be secured and a heavy load can be lifted. However, if such a large crane was installed on the deck, it would be extremely difficult to implement it because the construction cost of heavy cargo carriers would increase significantly and the operation would not be profitable. .
[0022]
However, in the present embodiment, the outreach can be sufficiently secured by installing two deck cranes 21a and 21b of a generally used size on the port side of the hull, By operating the two deck cranes 21a and 21b in synchronization, a heavy load that cannot be brought close to the quay is lifted. In addition, since the outreach can be sufficiently ensured, the elevation angles of the booms 23a and 23b can be defined according to the weight of the load, and the load having a larger weight can be lifted by a small deck crane.
[0023]
Furthermore, the deck cranes 21a and 21b to be installed are of a generally used size, thereby suppressing an increase in construction costs and sufficiently securing a front view, especially a starboard front view. did.
[0024]
As described above, according to the heavy load carrier 1 of the embodiment, by providing the crane device 20 on the port side of the deck 11, it is possible to further secure the right front view from the steering room 14 installed behind the hull. As a result, the visibility on the starboard side, which must be noted when crossing the course of another ship during navigation, is sufficiently secured, and safety during navigation is improved. In other words, a sufficient visibility ahead of the starboard can be ensured by the provisions of Article 15 of the Maritime Collision Prevention Act, when two powered vessels may collide with each other when they cross each other's course, the other powered vessels are starboarded. The power boat seen from the side must avoid the course of the other power boat, "which more effectively acts, thereby improving safety during navigation.
[0025]
In addition, since the crane device 20 is provided offset to the port side, the booms 23a and 23b can be extended to the outside on the side of the ship to a greater distance, so that the outreach can be sufficiently secured, and the crane device can be secured. The size of the crane device 20 can be reduced because the size of the crane device 20 can be reduced. The load can be increased as much as the weight has been reduced.
[0026]
Further, by defining the elevation angles of the booms 23a and 23b according to the weight of the load, it is possible to carry out the lifting and lowering of the heavy load with the small crane device 20. Therefore, by further reducing the size of the crane device 20, it is possible to further reduce the construction cost of the ship while further securing the front view from the wheelhouse, and to reduce the weight by reducing the size of the crane device 20. It is possible to increase the cargo by the amount.
[0027]
In the present embodiment, two deck cranes 21a and 21b are respectively provided on one main post 13 rotatably provided on the deck 11 so as to be individually rotatable. However, the same effect can be obtained by providing one deck crane 21a between the cargo compartments 12a and 12b and disposing the other deck crane 21b behind the cargo compartment 12b.
[0028]
In the present embodiment, two deck cranes are installed on a turntable on a main post provided between two hangars, and each deck crane can operate independently, and the two cranes are synchronized. Is also operable, but one deck crane is installed between the two hangars, the other deck crane is installed either in front of the front hangar or behind the rear hangar, and each deck crane is The same effect can be obtained by configuring such that it can operate independently and can operate even when two units are synchronized.
[0029]
【The invention's effect】
As described above, according to the first aspect of the present invention, the crane device is provided so as to be offset from the center line of the deck in the front-rear direction in the sideward direction, so that the front view from the wheelhouse installed behind the hull is provided. As a result, safety during voyage is improved.
[0030]
Also, since the crane device is provided offset, the boom can be extended farther to the outside on the side of the ship, so that sufficient outreach can be ensured, and the loading and unloading of cargo using a small crane device is possible. Becomes possible. Therefore, by reducing the size of the crane device, it is possible to further secure forward visibility from the wheelhouse, reduce the cost of building a ship, and reduce the weight of the crane device by reducing the size. You can increase your cargo by that amount.
[0031]
According to the second aspect of the present invention, since the crane device is provided on the port side of the deck, it is possible to further secure the right front view from the wheelhouse, so that the vehicle crosses the course of another ship during navigation. Attention should be paid to the starboard side, which must be carefully considered, further improving safety during the voyage.
[0032]
According to the third aspect of the present invention, the elevation angle of the boom is defined according to the weight of the load, and the elevation angle of the crane device is defined according to the weight of the load. It is possible to do. Therefore, by further reducing the size of the crane device, it is possible to further reduce the construction cost of the ship while further securing the front view from the wheelhouse, and to reduce the weight by reducing the size of the crane device. You can increase your load by minutes.
[Brief description of the drawings]
FIG. 1 is an upper plan view showing a heavy goods carrier according to an embodiment of the present invention.
FIG. 2 is a side view showing a heavy load carrier according to an embodiment of the present invention.
FIG. 3 is a rear sectional view taken along line AA in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Heavy load carrier 2 ... Center line 11 ... Deck 20 ... Crane devices 23a and 23b ... Booms 26a and 26b ... Lifting winch (winch)
27a, 27b ... lifting wire (wire rope)
28a, 28b ... hook

Claims (3)

A heavy cargo carrier having a crane device mounted on a deck of a hull, wherein a hook is hung by a wire rope at the tip of a rotatable boom and the height of the hook is adjusted by winding the wire rope with a winch. A heavy goods carrier, wherein the crane device is provided offset from a center line of the deck in the front-back direction in a sideward direction. The heavy goods carrier according to claim 1,
A heavy goods carrier, wherein the crane device is provided on the port side of the deck. The heavy goods carrier according to claim 1 or 2,
A heavy load carrier, wherein an elevation angle of the crane device is defined according to a weight of the cargo.

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