JP2004026066A - Rig merchant ship - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce an installation cost in a merchant ship provided with a derricking boom type deck crane, and to provide a rig merchant ship provided with a rigging device which gives no restriction on the crane operation of the deck crane and also may not narrow a working space on a deck. <P>SOLUTION: This merchant ship is provided with the derricking boom type deck crane. A rig mast is erected on a crane post, a flexible sail is mounted to be freely unfurled/furled on the rig mast, and the free end section of a base when the flexible sail is unfurled is fastened to the derricking boom of the deck crane. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sailing merchant ship, and in particular, relates to a merchant ship having a lifting boom type deck crane, which is provided with a sailing device using the deck crane.
[0002]
[Prior art]
2. Description of the Related Art In general, a sailing merchant ship equipped with a sailing device that adds a propulsion force by wind power during navigation in addition to an engine propulsion device has been put to practical use.
Such sailing merchant ships use natural wind power for propulsion and can save energy. However, in order to make full use of wind power, it is necessary to equip a fairly large sail.
[0003]
For this reason, a large-scale sailing device is provided on the hull, and the equipment is considerably expensive in terms of cost.
Since this sailing device is installed as an energy-saving measure, there is no point in comparing the energy-saving effect with the equipment cost. It is a factor that does not spread.
[0004]
On the other hand, some cargo ships are equipped with deck cranes. In particular, when fixedly equipped with a lifting boom type deck crane corresponding to the hold hatch, the deck crane and the sailing device are installed on the deck. As a result, the existence of the sailing device imposes restrictions on the operation of the crane, and there is an inconvenience that the working space on the deck is reduced.
[0005]
[Problems to be solved by the invention]
The present invention relates to a sailing device for a merchant ship equipped with a lifting boom type deck crane, which reduces equipment costs and does not limit the crane operation of the deck crane and does not reduce the working space on the deck. The purpose is to obtain a sailing merchant ship equipped with.
[0006]
[Means for Solving the Problems]
A merchant ship equipped with an elevating boom type deck crane, where a sailing mast is erected on a crane post, soft sails are mounted on the sailing mast, and the sails are freely attached to the sailing mast. The bottom free end of the is connected to the deck crane's lifting boom.
[0007]
In addition, a foundation post fixed to the bottom of the ship and protruding from the deck is provided, and a crane post is installed on the foundation post via a swivel device. It is also characterized in that a sail take-up device is installed vertically inside and a soft sail is stored in a sailing mast, and a slider device for extending a sail is configured on an elevating boom.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing the entirety of a sailing merchant ship according to the present invention, FIG. 2 is a side view showing the deck crane and a sailing device, and FIG. 3 is a front view thereof. FIG. 4 is a plan sectional view of the sailing mast, FIG. 5 is a side view showing an outline of the slider device, and FIG. 6 is a front sectional view of the same.
In the figure, 1 is a hull, 2 is a deck crane provided on the hull 1, and 3 is a sailing device, which is installed on the deck crane 2. 4 is a hatch of the hold.
[0009]
First, the details of the deck crane 2 will be described. In FIGS. 2 and 3, reference numeral 5 denotes a crane base post fixed to the bottom of the hull, vertically extending through the hull 1, and protruding above the deck. Reference numeral 6 denotes a crane post that is installed on the base post 5 via a swivel device 7 so as to be able to swivel.
[0010]
Reference numeral 8 denotes an elevating boom pivotally attached to the crane post 6 so as to be able to ascend freely. The elevating boom has a configuration such as a box type or a truss type, and a wire rope described later is passed through the elevating boom 8. .
Reference numeral 10 denotes an elevating cylinder in which the base is pinned to the crane post 6 and the tip of the rod is pinned to the elevating boom 8. The elevating boom 8 extends and retracts the pivoting point 9 by expanding and contracting the elevating cylinder 10. Raised as a fulcrum.
[0011]
Numeral 11 denotes a wire rope for crane operation, one end of which is attached to the tip of the elevating boom 8, and the other end of which is passed through the elevating boom 8 via a sheave arranged at an appropriate position, and is inserted into the crane post 6. It is wound around an installed winch (not shown), and is wound and unwound. In addition, 12 is a crane operation room.
[0012]
As shown in FIG. 1, the elevating boom type deck crane 2 is arranged for each hatch 4 or corresponding to a plurality of hatches 4, and performs loading and unloading of each hold from the hatch 4 when the ship is anchored. Will be.
As shown by the solid line in the figure, when the elevating cylinder 10 is shortened, the elevating boom 8 is horizontal (parallel to the deck surface), and the rest state is maintained at that position.
[0013]
Next, details of the sailing device 3 will be described. Reference numeral 13 denotes a sail mast, which is fixedly mounted on the crane post 6. As shown in FIG. 4, the sailing mast 13 has an airfoil cross section in this embodiment, and the mast itself is configured as a hard sail.
Reference numeral 14 denotes a soft sail mounted on the sailing mast 13 so that the sail can be extended and shrunk. The soft sail is wound around a sail take-up device 15 installed vertically in the sailing mast 13 and shrunk. It is stored in the mast 13. When used, it is rewound and displayed.
[0014]
The soft sail 14 has a triangular shape, and a vertical side when the sail is unfolded is fixed to the sail winding device 15 over the entire width.
The sail take-up device 15 includes a cylindrical frame 16 having a slit on the front surface, and a core shaft 18 that is vertically disposed in the frame 16 and that is driven to rotate by a motor 17. It is installed vertically. The soft sail 14 passes through a slit of the frame 16 and is fixed to a core shaft 18.
[0015]
The free end of the soft sail 14 is fastened to the slider device 19 and the sail is extended by the slider device 19.
5 and 6 show the configuration of the slider device 19. Reference numeral 20 denotes a slide rail having a T-shaped cross section, which is installed in the longitudinal direction of the upper surface of the elevating boom 8. Reference numeral 21 denotes a slider that fits into the slide rail 20 in a key shape. The bottom free end of the soft sail 14 is fastened to the slider 21.
[0016]
A tow line 22 wound around a winch (not shown) installed in the crane post 6 and passed through the elevating boom 8 is connected to the slider 21, and the slider 21 is connected to the tow line 22. To be slid.
By moving the slider 21 toward the tip of the elevating boom 8, the soft sail 14 is unfolded.
[0017]
The configuration of the present invention is as described above. Next, the state of use will be described.
First, when carrying out cargo handling work while anchored, the soft sail 14 is wound around the sail take-up device 15 and stored in the sailing mast 13 along the sailing mast 13.
In this state, the elevating boom 8 can be raised, so that the deck crane 2 can be freely crane-operated without being restricted by the sailing device 3 as in the case where the sailing device is not provided, and the cargo handling work is performed. .
[0018]
When sailing, the elevating cylinder 10 is shortened, the elevating boom 8 is leveled, and a rest state is set.
In this state, the slider 21 of the slider device 19 is moved along the slide rail 20 toward the tip of the elevating boom 8 to deploy the soft sail 14.
Then, when the soft sail 14 has spread to a predetermined position, the winch of the slider device 19 is locked. Thereby, the predetermined sailing of the soft sail 14 is completed.
[0019]
When sailing, the sail adjusts the sailing angle, that is, the angle of attack of the wind received by the sail, with respect to the wind direction to increase the lift generated on the sail. This adjustment is performed by rotating the deck crane 2.
When the sailing mast 13 has a hard sail configuration, a slat 23 that is rotatable in a plane is vertically provided along the sailing mast 13, and the opening degree of the slat 23 with respect to the sailing mast 13 is adjusted. By adjusting, the wind can be more effectively applied to the surface of the sailing mast 13 according to the wind direction.
[0020]
In the present embodiment, when the soft sail 14 is extended, the motor 17 of the sail take-up device 15 is in a free state so as not to affect the extension. The winch is free and does not affect the sail.
[0021]
In addition, most of the conventional deck cranes are mounted and fixed on the deck, but the deck crane 2 of the present invention has a sailing mast 13 erected on the crane post 6 and receives wind from the sails. Since this is transmitted to the hull 1 as a propulsive force, the crane post is extended and a foundation post 5 is provided to be fixed to the bottom of the ship.
[0022]
Furthermore, the method in which the soft sail 14 is formed in a triangular shape and the wind-up device 15 vertically winds and stores the soft sail 14 in the sailing mast 13 has been described. It is not limited.
For example, the soft sail can have a shape close to a square, or can have two sails. Further, it can be stored on the elevating boom 8 so as to be folded horizontally.
[0023]
【The invention's effect】
The present invention provides a merchant ship equipped with a lifting boom type deck crane, erecting a sailing mast on a crane post of the deck crane, and fastening a free end of a soft sail bottom when the sail is extended to the lifting boom, Since the sailing device is installed using a deck crane, it has become possible to greatly reduce the equipment cost as compared with the case where the sailing device is installed separately from the deck crane.
[0024]
In addition, the crane can be operated freely without being restricted by the sailing equipment, and the work space on the deck can be as large as that of a conventional ship equipped with a deck crane without a sailing equipment. Was.
[Brief description of the drawings]
FIG. 1 is an overall side view of a sailing merchant ship according to the present invention.
FIG. 2 is a side view of the deck crane and the sailing device.
FIG. 3 is a front view of the same.
FIG. 4 is a plan sectional view of a sailing mast.
FIG. 5 is a side view of the slider device.
FIG. 6 is a front sectional view of the same.
[Explanation of symbols]
Reference Signs List 1 hull 2 deck crane 3 sailing device 4 hold hatch 5 foundation post 6 crane post 7 turning device 8 elevating boom 9 pivot point 10 elevating cylinder 11 wire rope 12 cab 13 sailing mast (hard sail) 14 soft sail 15 sail Take-up device 16 Frame 17 Motor 18 Core shaft 19 Slider device 20 Slide rail 21 Slider 22 Tow line 23 Slat

Claims (6)

In a merchant ship equipped with an elevating boom type deck crane, a sailing mast is erected on a crane post, soft sails are mounted on the sailing mast, and the sails are freely retractable. A free-standing merchant ship, characterized in that its free end is fastened to the deck crane's lifting boom. 2. The ship merchant ship according to claim 1, wherein a base post fixed to the bottom of the ship and protruding from the upper deck is provided, and a crane post is installed on the base post via a turning device. 2. A sailing merchant ship according to claim 1, wherein the sailing mast has a wing-shaped flat cross section and a hard sail structure. 2. The sailing merchant ship according to claim 1, wherein the sail take-up device is provided vertically in the sailing mast, and the soft sail is stored in the sailing mast. A slider device having a slider slidable in the longitudinal direction of the elevating boom is provided on the upper surface of the elevating boom of the deck crane, and the free end of the soft sail bottom is fixed to the slider of the slider device. 2. The marine merchant ship according to claim 1, wherein the marine merchandise ship is fastened to a lifting boom. A slider device is mounted on a slide rail installed on the upper surface of the elevating boom of the deck crane, a slider fitted in a key shape on the slide rail and slidable along the slide rail, and a winch installed in the crane post. 6. The marine merchant ship according to claim 5, further comprising a tow line that is turned, passed through the elevation boom, and connected to the slider.

Images