JP2005112201A - Storage structure of anchor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage structure of an anchor capable of preventing a bow outer plate from being damaged and also increasing cruising performance. <P>SOLUTION: An anchor device is installed at the center of a hull. The anchor device comprises anchor recesses 11 and 21 formed at the bow bottom part of a ship and capable of storing an anchor U, anchoring equipments 21 and 22 which are installed on a bow deck, hose pipes 17 and 27 for passing anchor chains C therein, and formed between the anchor recesses 11 and 21 and the anchoring equipments 12 and 22 and passing anchor chains C therein. As anchor devices, two units of anchor devices, i.e., the first anchor device 10 and the second anchor device 20 are used, and they are installed at the bow part so as to be apart from each other in the longitudinal direction of the hull. Chain lockers 19 and 29 storing the chains C are disposed between the hose pipe 17 of the first anchor device 10 and the hose pipe 27 of the second anchor device 20. <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 103 equipped with a chain compressor 101 and a chain drum 102 for winding and feeding a chain is arranged on the bow cherry deck, and the anchor is The anchor U is held near the bell mouth 107 at the outer end of the hose pipe 106 by being raised and lowered by the chain C passing through the hose pipe 106 provided between the both outer skin portions on the bow draft and the bow cherry deck. (Non-Patent Document 1).
In a ship provided with a large spherical bow 4 at the bow, the length and position of the hose pipe 106 are taken into consideration in order to prevent the bow 4 from being damaged when the anchor C 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. In some cases, a half-round bar was attached to the outer plate to prevent chain slippage, but this was not a drastic measure, and maintenance of the bow outer plate was time-consuming.
In addition, since the bow shape has to be determined in consideration of avoiding contact with the anchor U and the chain C, the degree of freedom in designing the bow shape is low and it is difficult to obtain 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.

An anchor storage structure according to a first aspect of the present invention includes an anchor recess provided at the bottom of a bow that can accommodate an anchor, a lifting facility provided on a bow cherry deck, the anchor recess, and the lifting facility. And a hose pipe formed through the anchor chain.
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 and the hose pipe is provided in the center of the hull.
The anchor storage structure according to a third aspect of the present invention is the anchor storage structure according to the second aspect, wherein two anchor devices are used as the first anchor device and the second anchor device, and are provided apart from each other in the front-rear direction of the hull at the bow. It is characterized by that.
The anchor storage structure of the fourth invention is characterized in that, in the third invention, a chain locker for storing a chain is disposed between the hose pipe of the first anchor device and the hose pipe of the second anchor device. To do.
The anchor storage structure according to a fifth aspect of the present invention is characterized in that, in the fourth aspect, the chain locker is divided into two chambers divided in the front-rear direction by a partition wall.

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 bow shape can be designed regardless of the anchor, and the navigation performance 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. The bow cherry deck also has a wide space in the left and right width directions except for the lifting equipment installed in the center of the hull, so that the deck can be used effectively.
According to the third aspect of the invention, since there are two anchor devices, it is possible to stay on a single bed or on a double bed.
According to the fourth invention, since the first and second anchor devices are separated by the size of the chain locker, the two anchors do not come into contact with each other and the two chains are not entangled. Moreover, since the space between the two hose pipes is effectively used as a chain locker, the inboard space is not wasted.
According to the fifth aspect, since the chain when the anchor is stored is stored in the individual chain lockers partitioned forward and backward, the chain can be used smoothly without being entangled with each other.

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of an anchor storage structure according to an embodiment of the present invention, and FIG. 2 is a plan view of the anchor storage structure.
In FIGS. 1 and 2, 1 is a ship bottom skin, 2 is a bow cherry deck, 3 is a bow skin, and 4 is a bow formed at the bottom of the bow.
In the present embodiment, two anchor devices, that is, the first anchor device 10 and the second anchor device 20 are provided apart from each other in the front-rear direction on the hull center line of the bow portion.
The first anchor device 10 and the second anchor device 20 have substantially the same configuration. In FIG. 1, the former is indicated by a solid line and the latter is indicated by a dotted line.

First, the first anchor device 10 will be described.
Reference numeral 11 denotes an anchor recess, which is formed on the bottom of the bow. Moreover, since this formation site | part is on a hull centerline, the anchor recess 11 is formed in a flat part in a ship bottom part. 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 1.

On the other hand, a lifting equipment 12 is installed on the bow cherry deck 2. 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 a hydraulic motor and a chain drum 16.
The lifting equipment 12 is also installed on the center line of the hull on the bow cherry deck 2.
A lifting machine room 30 is provided around the lifting equipment 12 so as to surround it. That is, the lifting machine room 30 is a section that allows a person to enter and exit from the side wall 31 and the ceiling 32 that surround the four circumferences, but ensures a certain degree of liquid-tightness.

A hose pipe 17 for passing an anchor chain C (hereinafter referred to as chain C) is formed between the bow cherry deck 2 near the chain compressor 13 in the lifting machine room 30 and the anchor recess 11. Yes.
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 bow cherry deck 2 in the vicinity of the chain drum 16 in the lifting machine room 30, and a chain locker 19 is installed immediately below the pipe 18. 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 bow cherry deck 2 from contact with the chain C.

Since the second anchor device 20 is substantially the same device as the first anchor device 10, the corresponding members are denoted by reference numerals in the 20s that have the same number of one digit, and the description thereof is omitted. In the following, only a different configuration will be described.
In the second anchor device 20, the chain rocker 29 is disposed back to back with respect to the chain rocker 19 of the first anchor device 10, but the hose pipe 27 is disposed closer to the rear than the chain rocker 29. Therefore, in the first anchor device 10, the hose pipe 17 is disposed in the opposite direction to the front of the chain rocker 19. Correspondingly, the arrangement of the chain lockers 13 and 23 with respect to the lifting machines 14 and 24 in the lifting machine room 30 is also such that the chain locker 13 is closer to the front in the first anchor device 10 and the chain locker 13 in the second anchor device 20. The locker 23 is closer to the rear.

As described above, if the two hose pipes 17 and 27 are separated from each other in the front-rear direction, the chain C does not interfere with each other when the anchor U is lifted or lowered, so that a smooth beating is achieved. Storage is possible.
The two chain lockers 19 and 29 are preferably separated by the partition wall 5. In this case, since the two chains C do not become tangled with each other, smooth use is possible.

The lifting machine room 30 accommodates two lifting facilities 12 and 22 and surrounds them in a liquid-tight manner. A cleaning facility for the chain C is provided. This cleaning equipment is composed of cleaning nozzles 41, 42, 43, 44 for injecting cleaning water (possible with seawater) and pipes 45, 46 for supplying cleaning water thereto.
The cleaning nozzles 41 and 42 are provided at positions where the cleaning water is sprayed onto the chain C passing over the chain lockers 13 and 23, and the cleaning nozzles 43 and 44 are chains passing near the upper portions in the hose pipes 17 and 27. C is provided at a position for spraying cleaning water. Reference numeral 45 is a branch pipe to each of the cleaning nozzles 41 to 44, and 46 is a main pipe for supplying a cleaning liquid to each of the branch pipes 41 to 44.
If the valve 48 interposed between the branch pipes 41 to 44 and the main pipe 46 is opened and closed, only the arbitrary cleaning nozzles 41 to 44 can be used.
The sludge water generated by washing the chain C may be discharged from the ship bottom to the sea using the hose pipes 17 and 27.

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 3 and the bow 4 are not damaged by the anchor U and the chain C. For this reason, the shape of the bow 4 can be designed irrespective of the anchor, so that 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. In addition, since the bow cherry deck 2 has a wide space in the left and right width directions except for the lifting facilities 12 and 22 installed at the center of the hull, the deck 2 can be used effectively.

It is a side view of the anchor storage structure concerning one embodiment of the present invention. It is a top view of the anchor storage structure. It is a side view of the conventional anchor storage structure. It is a top view of the conventional anchor storage structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 1st anchor apparatus 11 Anchor recess 12 Lifting equipment 17 Hose pipe 19 Chain locker 20 2nd anchor apparatus 21 Anchor recess 22 Lifting equipment 27 Hose pipe 29 Chain locker 30 Lifting machine room 41-44 Cleaning nozzle

Claims (5)

An anchor recess provided at the bottom of the bow and capable of accommodating an anchor;
The lifting equipment provided on the bow cherry deck,
An anchor storage structure comprising a hose pipe for passing an anchor chain, which is formed between the anchor recess and the lifting equipment. The anchor storage structure according to claim 1, wherein an anchor device including the anchor recess, the lifting facility, and the hose pipe is provided in a center portion of the hull. 3. The anchor storage structure according to claim 2, wherein two anchor devices are used as a first anchor device and a second anchor device, and are provided apart from each other in the front-rear direction of the hull at the bow portion. The anchor storage structure according to claim 3, wherein a chain locker for storing a chain is disposed between the hose pipe of the first anchor device and the hose pipe of the second anchor device. The anchor storage structure according to claim 4, wherein the chain locker is divided into two chambers divided in the front-rear direction by a partition wall.