JP2005132179A - Storage structure for anchor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide storage structure for an anchor capable of improving the degree of freedom of design of a bow shape without damaging a bow part outer plate. <P>SOLUTION: An anchor device comprising an anchor recess 11 provided on a ship bottom part of a bow part and housing the anchor U, an anchoring equipment 12 provided on an upper deck F, and a hose pipe 17 and a chain locker 19 formed between the anchor recess 11 and the anchoring equipment 12 and passing an anchor chain C, is provided at the center of the ship body. The anchor U has a plurality of flukes 2 vertically provided on an outer peripheral part of a disk-like crown 1, and a shank 4 tiltably attached to a center part. Since the anchor U is taken in and out of the ship bottom part, the bow part outer plate E or a bow D is not damaged by the anchor U or the chain C. Therefore, the shape of the bow D can be designed regardless of the anchor, and sailing performance can be improved. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an anchor storage structure. More particularly, the present invention relates to a structure for storing a ship anchor.

A conventional anchor storage structure will be described with reference to FIGS.
As shown in the figure, in a conventional ship, a lifting machine equipped with a chain compressor 101 for guiding and stopping a chain and a chain drum 102 for winding and unwinding the chain on the bow deck B 103 is arranged, and the anchor U is raised and lowered by a chain C passing through a hose pipe 106 provided between the both-side outer plate part E and the bow tower deck B on the draft of the bow, The anchor U is held near the bell mouth 107 at the end (Non-Patent Document 1).
In a ship having a large spherical bow D on the bow, the length and position of the hose pipe 106 are taken into consideration so as not to damage the bow D when the anchor U is raised and lowered. Ingenuity has been made such as projecting 107 outward.

If the hull still sways due to waves, the anchor U or chain C may damage the paint on the bow skin E. Although a half-round bar was attached to the outer plate to prevent chain slippage, it was not a drastic measure, so it took time to maintain the bow outer plate E.
Further, as shown in FIG. 8, the shape of the bow D has to be determined in consideration of avoiding contact with the anchor U and the chain C. For example, when the bow shape is inflated as indicated by the imaginary line indicated by the symbol D ′, the bow U comes into contact with the anchor U, and therefore only the bow shape indicated by the solid line can be adopted. Thus, in the conventional anchor storage structure, the degree of freedom in designing the bow shape is low, and it is difficult to achieve high navigation performance.

Shipbuilding Design Handbook 4th edition, pages 616-617, 3rd edition, issued on June 28, 1996 Kansai Shipbuilding Association, edited by Kaibundo Publishing Co., Ltd.

  In view of the above circumstances, an object of the present invention is to provide an anchor storage structure that can improve navigation performance without damaging the bow skin.

According to a first aspect of the present invention, there is provided an anchor storage structure comprising: an anchor recess provided on a bottom portion of a bow portion capable of accommodating an anchor; a lifting device provided on an upper deck; and the anchor recess and the lifting device. It has a hose pipe for passing an anchor chain formed therebetween, and a chain locker for storing the anchor chain, which is formed under the lifting equipment.
The anchor storage structure of the second invention is characterized in that, in the first invention, the anchor device comprising the anchor recess, the lifting equipment, the hose pipe and the chain locker is provided in the center of the hull. .
According to a third aspect of the present invention, there is provided an anchor storage structure, wherein the anchor has a plurality of flutes provided on the outer periphery of a disc-shaped crown, and a shank attached to the central portion in a tiltable manner.
An anchor storage structure according to a fourth aspect of the present invention is the anchor storage structure according to the first aspect of the present invention, wherein a lifting machine room surrounding the upper deck side opening of the hoisting equipment, the hose pipe and the upper deck side opening of the chain locker is provided on the upper deck. It is characterized by being provided in.
According to a fifth aspect of the present invention, there is provided the anchor storage structure, wherein the hose pipe is arranged behind the chain locker in the hull.
According to a sixth aspect of the present invention, there is provided the anchor storage structure, wherein, in the fourth aspect of the present invention, a cleaning facility for injecting cleaning water into the chain is provided in the lifting machine room.
The anchor storage structure according to a seventh aspect of the present invention is characterized in that, in the fourth aspect, the lifting machine room has four side walls and a top wall, and these walls are soundproof structures.
An anchor storage structure according to an eighth aspect of the present invention is characterized in that, in the fourth aspect of the invention, a mooring machine is installed on the bow deck above the upper deck.

According to the first invention, since the anchor is taken in and out from the bottom of the ship, the bow outer plate and the bow are not damaged by the anchor or the chain. Therefore, the shape of the bow can be designed regardless of the anchor, and the navigation performance of the ship can be improved.
According to the second aspect of the invention, since the anchor descends from the hull center, the hull can be stabilized in the left-right direction.
According to the third aspect of the invention, the crown and the fluke of the anchor can be accommodated in the ceres formed on the bottom of the ship, and the shank can be stored in the hose pipe. In this state, when the bottom surface of the disc-shaped crown is stored at the same position as the bottom of the ship, unevenness is not generated on the bottom of the ship, and resistance during navigation can be prevented.
According to the fourth invention, the lifting machine room can enclose the lifting equipment, the opening part of the hose pipe, and the opening part of the chain locker. Safety on the upper deck can be ensured.
According to the fifth invention, since the upper deck is inclined downward, it is possible to easily collect the washed sewage behind the lifting machine room, guide it to the hose pipe, and drain it out of the ship. Moreover, since the anchor recess below the hose pipe can be provided in a wide portion of the ship bottom, it becomes easy to secure the volume of the anchor recess.
According to the sixth aspect of the invention, the mud attached to the chain in the lifting machine room can be washed away by the washing equipment, so that no manual operation is required for washing, and considerable omission is possible.
According to the seventh aspect of the invention, the noise generated by the lifting machine and the chain is confined in the lifting machine room by the soundproof structure of the side wall and the ceiling wall, so that various operations during mooring around the lifting machine room are noisy. There is no hindrance.
According to the eighth invention, the lifting equipment is installed on the upper deck, and the mooring machine is installed on the bow tower deck and divided into layers, so that the upper deck and the bow tower deck have a spacious structure without complicated projections. It is possible to secure the safety of mooring work and lifting work.

Next, an embodiment of the present invention will be described with reference to the drawings.
1 is a side view of an anchor storage structure according to an embodiment of the present invention, FIG. 2 is a plan view of an upper deck F, and FIG. 3 is a plan view of a bow deck B.
1 to 3, A is a bottom shell plate, B is a bow tower deck, E is a bow skin plate, D is a bow formed in the lower part of the bow, and F is an upper deck.
In the present embodiment, an anchor device is provided on the hull center line of the bow.

First, the anchor device will be described with reference to FIGS.
Reference numeral 11 denotes an anchor recess, which is formed on the bottom of the bow. Moreover, since this formation site is on the hull center line, the anchor recess 11 is formed in a flat portion of the ship bottom A. The anchor recess 11 may be any shape and size that can accommodate the anchor U, and is not particularly limited. In addition, in the accommodation state of the anchor U, it is preferable for the navigation performance improvement that the bottom part of the anchor U does not protrude from the ship bottom outer plate A.

On the other hand, a lifting equipment 12 is installed on the upper deck F. The lifting equipment 12 includes a chain compressor 13 and a lifting machine 14, and the lifting machine 14 includes a drive source 15 such as an electric motor and a chain drum 16.
The lifting equipment 12 is also installed on the upper deck F on the hull center line.
In addition, a lifting machine room 30 which will be described in detail later is provided around the lifting equipment 12.

An anchor chain C (hereinafter referred to as chain C) is passed between the chain guide 21 installed on the upper deck F near the chain compressor 13 in the lifting machine room 30 and the anchor recess 11. A hose pipe 17 is formed.
The hose pipe 17 only needs to have a space for the chain C of the anchor U to go up and down, and there are no other restrictions on the shape and size.
A chain pipe 18 is erected on the upper deck F near the chain drum 16 in the lifting machine room 30, and a chain locker 19 is installed immediately below the upper pipe F. The chain locker 19 is a space for storing the chain C when the anchor U is wound up, and has a necessary volume. The chain pipe 18 is provided to protect the upper deck F from contact with the chain C.

  The hose pipe 17 is arranged behind the hull of the chain locker 19. For this reason, since the anchor recess 11 formed immediately below the hose pipe 17 is formed in a wide portion of the bottom of the ship that becomes wider from the bow to the rear, the anchor recess 11 has a sufficient volume. It becomes easy.

Next, details of the anchor U shown in FIG. 1 will be described with reference to FIGS. This anchor U is basically composed of a crown 1, a fluke 2 and a shank 4.
The crown 1 has a disk shape, and the back surface thereof may be flat as shown in the figure, or may have a round camber having a thickness at the center.

On the upper surface of the crown 1, a plurality of flukes 2 are erected at regular intervals in the circumferential direction, for example, four are erected at a pitch of 90 degrees.
The shape of the fluke 2 is a substantially quadrangular pyramid, and the outer outer surface 2 a is formed on an arcuate surface located inside the outer diameter of the crown 1. Therefore, the apex of the anchor head 3, that is, the quadrangular pyramid is inside the outer diameter of the disc of the crown 1.

The center portion of the crown 1 is formed in a female shape provided with a rectangular recess 6. A head pin hole 7 is provided coaxially on the wall on both sides of the recess 6.
The head pin 5 inserted into the head pin hole 7 is prevented from coming off, and connects the shank 4 and the crown 1.

The body part 4a of the shank 4 has a cylindrical shape, and is formed in a tapered shape that becomes thinner toward the upper part.
The lower part of the shank 4 is generally rectangular and forms a male mold 4b with rounded chamfered corners. A head pin hole 8 is provided in one direction so as to penetrate the male mold 4b.
Further, a joint 9 is formed on the upper part of the shank 4 so that the anchor ring is connected by an anchor pin.
The shank 4 falls down at an angle θ of about 10 degrees on either side, and the male part 4b and the female part 6 come into contact with each other so as not to fall any further.

  If the anchor U of the said embodiment is used, the crown 1 and the fluke 2 of the anchor U can be accommodated in the ceres 11 formed in the ship bottom, and the shank 4 can be stored in the hose pipe 17. In this state, when the bottom surface of the disc-shaped crown 1 is stored at the same position as the ship bottom A, the ship bottom A is not uneven, and resistance during navigation can be prevented.

A lifting machine room 30 is provided around the upper deck side opening of the hoisting equipment 12 and the hose pipe 17 and around the upper deck side opening of the chain pipe 18 so as to surround them. . That is, the lifting machine room 30 is composed of a side wall and a ceiling surrounding the four circumferences and is provided with an entrance through which a person can go in and out, but has a compartment that ensures a certain degree of liquid tightness. Thus, the lifting machine room 30 can surround the lifting equipment, the opening part of the hose pipe 17 and the opening part of the chain pipe 18, so that the safety to humans is improved, and the lifting machine room 30 is other than the lifting machine room 30. Safety on the upper deck F can be ensured.
And the wall part of the lifting machine room 30 is comprised with the steel plate and the soundproof material affixed on it. A similar soundproof material is also attached to the ceiling. If soundproofing material is used in this way, it is possible to prevent the noise in the lifting machine room 30 from leaking to the outside. In addition to various operations during mooring around the lifting machine room, the surrounding private houses are noisy. There is no hindrance.

Inside the lifting machine room 30, a cleaning facility for the chain C is provided. This cleaning equipment includes cleaning nozzles 41, 42, and 43 for injecting cleaning water (possible with seawater) and pipes 45 and 46 for supplying the cleaning water thereto.
The cleaning nozzle 41 is provided at a position for injecting cleaning water to the chain C in the vicinity of the opening on the upper deck side of the hose pipe 17, and the cleaning nozzle 42 is a position for injecting cleaning water to the chain C passing through the chain guide 21. The plurality of cleaning nozzles 43 are provided at positions for injecting cleaning water to the chain C running from the chain guide 21 to the chain drum 16. A main pipe 47 supplies the cleaning liquid to the pipes 45 and 46.

If the valve 48 interposed between the pipe 46 and the main pipe 47 is opened and closed, the chain C can be cleaned using any cleaning nozzles 41 to 43. For this reason, no manual operation is required for cleaning, and considerable omission is possible.
Further, since the upper deck F is inclined slightly downward (referred to as shear or trim), the washed sewage is collected in the rear of the lifting machine room 30 and guided to the hose pipe 17 from the bottom of the ship to the outside of the ship. It can be easily drained into the water.

According to the chain storage structure of the present embodiment, the anchor U is taken in and out from the bottom of the ship, so that the bow outer plate E and the bow D are not damaged by the anchor U and the chain C. For this reason, since the shape of the bow D can be designed regardless of the anchor, the navigation performance can be improved.
Furthermore, since the anchor U descends from the center of the hull, the hull can be stabilized in the left-right direction.

Next, based on FIG. 3, a structure on the bow deck B above the upper deck F will be described.
Five mooring machines 50 are installed on the outer edge of the bow deck B. This mooring machine 50 is disclosed in Japanese Patent Application No. 2003-333692 and has the following structure. That is, a winding drum that winds and unwinds the mooring rope R, an electric motor that can be remotely driven by rotating the winding drum, a pair of rollers that feed the mooring rope R to the outside, and an electric motor that drives the rollers The motor is mounted on a common frame and unitized. If this mooring machine 50 is equipped with a TV camera or the like at an appropriate location, the mooring machine 50 can be automatically operated from the bridge while performing centralized monitoring on the bridge, etc., and the mooring rope R can be fed out and taken up. It is something that can be done.
In the bow deck B of this configuration, the mooring machine 50 is installed, but the lifting equipment 12 is installed on the lower upper deck F and divided into layers, so that both the upper deck F and the bow tower deck B It can be made into a clean structure that eliminates complex protrusions, improving the safety of mooring work and lifting work.

It is a side view of the anchor storage structure concerning one embodiment of the present invention. 2 is a plan view of an upper deck F. FIG. It is a top view of the bow deck B. It is a front view of the anchor used by this invention. It is a top view of the anchor. It is a longitudinal cross-sectional view of the anchor. It is a side view of the conventional anchor storage structure. It is a top view of the conventional anchor storage structure. It is a front view of the conventional anchor storage structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Anchor recess 12 Lifting equipment 17 Hose pipe 19 Chain locker 30 Lifting machine room 41-44 Washing nozzle 50 Mooring machine

Claims (8)

An anchor recess provided at the bottom of the bow and capable of accommodating an anchor;
The lifting equipment on the upper deck,
A hose pipe formed between the anchor recess and the lifting equipment and passing an anchor chain;
An anchor storage structure comprising a chain locker for storing an anchor chain, which is formed below the lifting equipment. The anchor storage structure according to claim 1, wherein an anchor device including the anchor recess, the lifting equipment, the hose pipe, and the chain locker is provided at a center of the hull. 2. The anchor storage structure according to claim 1, wherein a plurality of flukes are erected on an outer peripheral portion of a disc-shaped crown, and a shank is attached to a central portion in a tiltable manner. The anchor according to claim 1, wherein a lifting machine room surrounding the upper deck side opening of the hoisting equipment, the hose pipe and the upper deck side opening of the chain locker is provided on the upper deck. Storage structure. The anchor storage structure according to claim 4, wherein the hose pipe is arranged behind the chain locker in a hull. The anchor storage structure according to claim 4, wherein cleaning equipment for injecting cleaning water to the chain is provided in the lifting machine room. 5. The anchor storage structure according to claim 4, wherein the lifting machine room has four side walls and a top wall, and these walls have a soundproof structure. The anchor storage structure according to claim 4, wherein a mooring machine is installed on the bow deck above the upper deck.