JPH07137981A - Crane device for container ship - Google Patents

Abstract

PURPOSE:To provide a crane device for container ship capable of carrying containers also in and out of the bow pat of a hull without modifying the bow part of the hull into a special structure and without providing a swing mechanism for cart. CONSTITUTION:A pair of base rails 2 are laid down on the upper surface of a hyll 1 so as to extend in longitudinal direction. Also a machine frame 3 is supported movably on the base rail 2. Then a pair of first guide rails 6 is laid down on the machine frame 3 so as to extend in the direction perpendicular to the base rail 2, and extended from over the hull 1 to the upper position of a dock 8. A movable frame 10 is supported movably on the first guide rail 6. In addition, a second guide rail 14 is laid down on the movable frame 10 so as to extend in the same direction as the base rail 2, and projected, beyond the first guide rail 6, to the bow 1a side of the hull 1. A cart 15 is supported movably on the second guide rail 14, and a holding mechanism 22 capable of holding a container 24 is supported liftably on the cart 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane device for a container ship, which is installed on the upper surface of a hull of a container ship and is used when loading and unloading a container between a dock and a hull.

[0002]

2. Description of the Related Art As a conventional crane device for a container ship of this type, one having a structure as shown in FIGS. 6 and 7 is known.

In this conventional structure, a pair of base rails 32 are laid on the deck of the hull 31 of the container ship so as to extend in the longitudinal direction of the hull 31, and the base rails 32 are provided.
A gate-shaped machine frame 33 is movably supported on the top. On the machine frame 33, a pair of guide rails 34 are provided on the base rail 3
The guide rail 34 is laid so as to extend in a direction orthogonal to 2, and has an extension 34a extending from above the hull 31 to a position above the dock 35. A carriage 36 is movably supported on the guide rail 34, a gripping mechanism 38 for gripping the container 37 is supported on a lower portion of the carriage 36, and a lift for lifting the gripping mechanism 38 is provided on an upper portion. A mechanism 39 is provided.

When the container 37 is loaded and unloaded, the machine frame 33 is moved along the base rail 32 in the front-rear direction of the hull 31, and the carriage 36 is moved along the guide rail 34 in the width direction of the hull 31. It Thereby,
The gripping mechanism 38 is moved to a position corresponding to the predetermined container 37. In this state, the lifting mechanism 39 moves the gripping mechanism 3
As the container 8 is moved up and down, the container 37 is gripped by the gripping mechanism 38, and the container 37 is carried in from the dock 35 onto the hull 31 or from the hull 31 onto the dock 35.

[0005]

However, in this conventional crane device for container vessels, the machine frame 33 is included even if the position of the gripping mechanism 38 needs to be slightly changed to the front or rear of the hull 31. There is a problem that it is necessary to move the entire device along the base rail 32, and fine alignment is troublesome.

Further, since the bow 31a of the hull 31 is generally tapered, the base rail 32 can be extended to the bow 31a and laid in this conventional crane apparatus for container ships. There wasn't. For this reason, the machine frame 33 cannot be moved onto the bow 31a, and the container 37 cannot be carried in and out of the bow 31a, resulting in a dead space on the bow 31a.

In order to solve such a problem, a swinging mechanism for swinging a part of the carriage 36 including the gripping mechanism 38 at the bow 31a is provided, and the gripping mechanism 38 can be moved and arranged on the bow 31a. It has been conventionally proposed to configure as described above.

However, in the case of such a configuration,
Since the swivel mechanism needs to be manufactured so that it can support a large weight, there is a problem that the structure of the swivel mechanism becomes complicated and large.

Further, in order to solve the above-mentioned problems in the conventional apparatus, for example, a configuration as shown in FIG. 8 has been conventionally proposed. In this conventional configuration, the hull 31 is formed wide up to the bow 31a, and
A step portion 31b is formed on the bow portion 31a.
And, the base rail 32 is the step portion 3 of the bow 31a.
It is formed to extend to 1b, and the machine frame 33 can be moved to above the bow 31a so that the container 37 can be carried in and out of the bow 31a.

However, in this conventional crane apparatus for container vessels, the bow 31a of the hull 31 is formed.
Has a special structure having a step portion 31b, so that there is a problem that the navigation performance of the hull 31 deteriorates.

The present invention has been made by paying attention to the problems existing in the above conventional techniques. An object of the present invention is to provide a crane device for a container ship, which can carry a container in and out of a bow of a hull without providing a special structure to the bow of the hull or providing a swing mechanism for a bogie. is there.

Another object of the present invention is to provide a crane device for a container ship, which can finely change the position of the gripping mechanism in the longitudinal direction of the hull.

[0013]

In order to achieve the above object, in a crane apparatus for a container ship of the present invention, a pair of base rails laid on the upper surface of the hull of the container ship so as to extend in the longitudinal direction, A machine frame movably supported on the base rail, and a pair of first guide rails laid on the machine frame so as to extend in a direction orthogonal to the base rail and extendable from the hull to a position above the dock. And a moving frame movably supported on the first guide rail, a second guide rail laid on the moving frame so as to extend in the same direction as the base rail, and moving on the second guide rail. A trolley that is movably supported, and a gripping mechanism that is movably supported by the trolley and that is capable of gripping a container, and the second guide rail includes a hull of a hull that extends between the first guide rails. In which characterized in that a portion projecting section side.

[0014]

[Operation] In the crane device for a container ship configured as described above, when the container is carried in and out of a wide portion on the hull, the carriage is on the second guide rail,
It is moved between the pair of first guide rails. In this state, the machine frame is moved in the front-rear direction of the hull along the base rail, and the moving frame is moved in the width direction of the hull along the first guide rail, so that the gripping mechanism is arranged corresponding to a predetermined container. To be done. Then, the gripping mechanism is moved up and down, and the container is gripped by the gripping mechanism to carry in the container from the dock to the hull or to carry out the container from the hull to the dock.

Also, when carrying in and out this container,
If you want to change the position of the container in the front-back direction of the hull,
By moving the carriage along the second guide rail, the position of the container gripped by the gripping mechanism can be easily changed. Therefore, it is not necessary to move the entire apparatus including the machine frame along the base rail when changing the number of positions of the container, and the fine position changing operation can be performed.

Further, when the container is carried in and out of the bow on the hull, the machine frame is moved along the base rail to the end position on the bow side, and the carriage is paired on the second guide rail. Is moved to and arranged in a portion projecting toward the bow side of the hull beyond the space between the first guide rails. In this state, the moving frame is moved along the first guide rail in the width direction of the hull, and the gripping mechanism is arranged corresponding to a predetermined container. Then, the gripping mechanism is moved up and down, and the container is gripped by the gripping mechanism, so that the container is carried in from the dock onto the bow of the hull, or the container is carried out from the bow onto the dock.

Therefore, it is not necessary to make the bow portion of the hull a special structure, to extend the base rail to the bow portion, or to provide a turning mechanism for turning the bogie to the bow portion side. Also, the container can be easily loaded and unloaded. Therefore, the container can be effectively mounted on the entire upper surface of the hull without fear that the bow of the hull becomes a dead space and without impairing the navigation performance of the hull.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a crane device for a container ship embodying the present invention will be described in detail below with reference to FIGS.

As shown in FIGS. 1 to 4, a pair of base rails 2 are laid on the deck of a hull 1 of a container ship and extend in the front-rear direction of the hull 1. The gate-shaped machine frame 3 is movably supported on the base rail 2 via a plurality of traveling wheels 4. The motor 5 is mounted on the machine frame 3, and the traveling wheels 4 are rotated by the motor 5 to move the machine frame 3 along the base rail 2.

A pair of first guide rails 6 are laid on the machine frame 3 and extend in a direction orthogonal to the base rail 2. The pair of extension arms 7 are rotatably attached to the side portions of the machine casing 3 and rotate between an extended position extending from above the hull 1 above the dock 8 and a folding position extending along the side surface of the machine casing 3. Can be placed. The extension rail 9 is laid on the extension arm 7, and is extendedly connected to the first guide rail 6 in a straight line when the extension arm 7 is disposed in the extension position.

The moving frame 10 is movably supported on the first guide rail 6. The motor 11 is mounted on the side portion of the moving frame 10, and the pair of pinions 12 is rotated by the motor 11. The pair of racks 13 are arranged along the first guide rails 6 and the extension rails 9, and the pinion 12
Is meshed with. Then, when the pinion 12 is rotated by the motor 11, the moving frame 10 is moved along the first guide rail 6 and the extension rail 9 based on the meshing of the pinion 12 and the rack 13.

A pair of second guide rails 14 are laid on the moving frame 10 and extend in the same direction as the base rail 2. Further, in this embodiment, one end of the moving frame 10 is formed so as to extend beyond the pair of first guide rails 6 and project toward the bow 1a side of the hull 1, and the second guide is provided on the projecting portion. The protruding portion 14a of the rail 14 is formed to extend.

The carriage 15 is movably supported on the second guide rail 14. The motor 16 is mounted on the side portion of the carriage 15, and the motor 16 allows the pair of pinion 1
7 is rotated. The pair of racks 18 are arranged along the second guide rail 14 and meshed with the pinion 17. Then, when the pinion 17 is rotated by the motor 16, based on the meshing of the pinion 17 and the rack 18,
The dolly 15 is moved along the second guide rail 14.

An elevating mechanism 19 made up of a winch is arranged on the carriage 15, and has a winding drum 20 and a hanging rope 21.
And so on. The gripping mechanism 22 is suspended and supported by a suspending rope 21 of the elevating mechanism 19 so as to be capable of ascending and descending, and a container 24
Is provided with a plurality of grip claws 23 and the like. Then, the lifting mechanism 19 raises and lowers the gripping mechanism 22, and the gripping claw 23 of the gripping mechanism 22 causes the container 24 to move.
Is gripped or released, and the container 24 is loaded and unloaded.

As shown in FIG. 4, a plurality of engagement rollers 25 are provided.
Is rotatably supported on the base end of the moving frame 10 via a bracket 26, and is rotatably engaged with an engaging groove 27 on the side surface of the machine frame 3. Then, as shown by the chain line in FIG. 4, when the carriage 15 is moved onto the protruding portion 14a of the second guide rail 14, the weight of the carriage 15 or the container 24 may cause the protruding portion 14a side of the moving frame 10 to tilt. The engagement between the engagement roller 25 and the engagement groove 27 prevents this.

Next, the operation of the crane device for a container ship constructed as described above will be described. Now, in the crane apparatus of this embodiment, when the container 24 is carried in and out between the wide portion of the deck of the hull 1 and the dog 8, as shown in FIGS. The rail 14 is moved and arranged at a position between the pair of first guide rails 6. In this state, the machine frame 3 is moved along the base rail 2 in the front-back direction of the hull 1, and
The moving frame 10 is moved along the first guide rail 6 in the dog 8 side or in a direction away from the dog 8, that is, in the width direction of the hull 1.

As a result, the gripping mechanism 22 at the lower portion of the carriage 15 is arranged corresponding to the predetermined container 24 on the dog 8 or on the deck. Then, the lifting mechanism 19 raises and lowers the gripping mechanism 22, and the gripping mechanism 22 grips or releases the container 24 to carry the container 24 into the hull 1 from the dock 8 or from the deck of the hull 1. The container 24 is unloaded on the dock 8. In addition, the movement of the lifting mechanism 19 in the width direction of the hull and the container 2
Ascending / descending of 4 is performed almost at the same time, and the loading / unloading work is efficiently performed in a short time as compared with the case where they are separately performed.

When it is desired to slightly change the position of the container 24 in the front-rear direction of the hull 1 when the container 24 is carried in and out, the trolley 15 is moved along the second guide rail 14 to grasp the container 24. The position of the container 24 held by the mechanism 22 can be easily changed. Therefore, when changing the position of this container 24,
It is not necessary to move the entire apparatus including the machine casing 3 along the base rail 2, and it is possible to perform a fine change operation.

Further, when the container 24 is carried in and out of the bow 1a on the hull 1, as shown in FIG.
Is moved along the base rail 2 to the end position on the bow 1a side. At the same time, the carriage 15 is moved and arranged on the second guide rail 14 to a portion 14a that projects between the pair of first guide rails 6 and projects toward the bow 1a of the hull 1.

In this state, the moving frame 10 is moved in the width direction of the hull 1 along the first guide rails 6, and the gripping mechanism 22 at the lower portion of the carriage 15 is arranged corresponding to a predetermined container 24. The lifting mechanism 19 moves the gripping mechanism 22 up and down, and the gripping mechanism 22 moves the container 24.
Is grasped or released, and the container 24 is loaded onto the hull 1 from the dock 8 or from the hull 1 to the dock 8
The container 24 is unloaded onto the top.

Therefore, unlike the conventional structure, the bow 1a of the hull 1 has a special structure, the base rail 2 is extended to the bow 1a, and the bogie 15 is swung to the bow 1a side. The container 24 can be easily loaded and unloaded to and from the bow 1a of the hull 1 without the need to provide a container. Therefore, the container 1 can be effectively mounted on the entire upper surface of the hull 1 without fear that the bow 1a of the hull 1 becomes a dead space. Further, since it is not necessary to provide a turning mechanism, the structure of the crane device does not become complicated. Furthermore, the bow 1a of the hull 1 is shown in FIG.
There is no need to make a special shape such as, and the navigation performance is not impaired.

The present invention is not limited to the configuration of the above-described embodiment, and can be embodied by making the following arbitrary changes without departing from the spirit of the present invention.

(1) Upper surface of the first guide rail 6 and the carriage 1
A space larger than the height of the gripping mechanism 22 and the container 24 is provided between the lower surface of the container 5 and the lower surface of the container 5. According to this structure, with the container 24 grasped and hung by the grasping mechanism 22, the trolley 15 is moved to the first position on the second guide rail 14.
It becomes possible to freely move to an intermediate position between the guide rails 6 and the protrusion 14a.

(2) The movable frame 10 should be configured so as to project to the stern side as well. (3) A crane device should be installed on the deck. In this case, the crane device is small.

(4) The machine frame 3, the moving frame 10, the carriage 15, the lifting mechanism 19, the gripping mechanism 22 and the like should be appropriately modified and configured.

[0036]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, a container can be attached to the bow of the hull without providing a special structure to the bow of the hull or providing a swinging mechanism for a bogie. It has an excellent effect that it can be carried in and out.

Further, according to the present invention, when the container is loaded and unloaded, the gripping mechanism can be finely changed in the longitudinal direction of the hull, and the loading and unloading position of the container can be easily changed. There is also.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a crane device for a container ship embodying the present invention.

FIG. 2 is a plan view of the crane device for the container ship.

FIG. 3 is a side view of the crane device for the container ship.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a plan view showing a different operating state of the crane device for a container ship corresponding to FIG. 2;

FIG. 6 is a plan view showing a conventional crane device for a container ship.

FIG. 7 is a front view of the crane device for the container ship.

FIG. 8 is a plan view showing another configuration of a conventional crane device for a container ship.

[Explanation of symbols]

1 ... Hull, 1a ... Bow part, 2 ... Base rail, 3 ... Machine frame, 6 ... First guide rail, 7 ... Extension arm, 8 ... Dock, 9 ... Extension rail, 10 ... Moving frame, 14 ... Second guide Rails, 14a ... Projections, 15 ... Carts, 19 ... Lifting mechanism, 22 ... Gripping mechanism, 24 ... Container.

Claims (1)

[Claims] 1. A pair of base rails (2) laid on the upper surface of a hull (1) of a container ship so as to extend in the front-rear direction.
And a machine frame (3) movably supported on the base rail (2) and a machine frame (3) laid on the machine frame (3) so as to extend in a direction orthogonal to the base rail (2). ) A pair of first guide rails (6) extending from above to a position above the dock (8), a moving frame (10) movably supported on the first guide rails (6), and movement thereof. A second guide rail (14) laid on the frame (10) so as to extend in the same direction as the base rail (2), and a carriage (15) movably supported on the second guide rail (14). And a container (2
4) and a gripping mechanism (22) capable of gripping, and the second guide rail (14) projects toward the bow (1a) side of the hull (1) beyond the space between the first guide rails (6). A crane device for a container ship, characterized in that a portion (14a) is provided.