JP2001239989A - Protector for hull - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector for a hull capable of automatically clean the bottom of the hull without requiring hands, when the ship enters a port and departs from the port. SOLUTION: A float 4 disposed on the right and left of a flexible sheet 1 and the sheet alternatively extending inside from the float and having a cleaning float 6 provided with a projecting and recessed part 5 on its surface are installed in a designated water area. If a ship advances, the sheet covers it along the bottom part 3 of the ship, the projecting and recessed part of the cleaning float is brought into contact with the bottom part of the ship and frictionally passes along the bottom part by its relative movement, and thereby, deposits such as barnacles and seaweeds and their eggs deposited on the bottom of the ship can be efficiently removed. In addition, the seawater in the sheet is shielded from the seawater around the hull, supply of fresh seawater is interrupted by the sheet, and thereby, oceanic lives are annihilated and are not deposited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hull protector suitable for use at the time of anchoring a small boat such as a pleasure boat in a marina or the like.

[0002]

2. Description of the Related Art Conventionally, if a boat or other boat is moored and anchored in a marina, shellfish such as barnacles and purple shellfish or seaweed adhere to the bottom of the boat and propagate, causing a decrease in boat speed and deterioration in fuel efficiency. It has become. For such marine organisms, lift the ship ashore, clean the bottom of the ship and repaint it, paint with a toxic paint that does not attach organisms, floating hull There is a known method of wrapping a sheet with a sheet to prevent marine organisms from attaching. Cleaning and repainting of the ship's bottom on land is problematic because it takes a lot of time and money, and when toxic paints are used,
There is a problem that it causes marine pollution and the effect of sustaining toxicity is limited. One way to use a sheet is
For example, JP-A-59-128095 and JP-A-61-8
The techniques disclosed in JP-A-9196, JP-A-4-345589 and JP-A-7-96891 are known.

[0003]

The above publication discloses a structure in which the bottom of a ship is covered with a waterproof sheet, a structure in which a check valve is provided in the seat to drain seawater between the seat and the bottom of the ship, and a structure between the bottom of the ship and the seat. Although a structure for preventing the growth of shellfish and seaweed by injecting fresh water is disclosed, it does not have a function of more actively cleaning the bottom of the ship.

The present invention has been made in view of such circumstances, and provides a hull protection device having a cleaning function.

[0005]

Means for Solving the Problems The present invention (claim 1) provides:
A flexible sheet installed in a predetermined water area where the hull enters and anchors, a float attached to a portion around the sheet except for the approach path of the hull, and the bottom portion of the hull when the hull enters. A cleaning float fixed to the surface of the sheet that comes into contact with the cleaning float. The cleaning float applies buoyancy to the sheet and contacts the bottom of the ship to remove marine life and the like attached to the surface. It has a layer.

In this configuration, when the ship is not anchored in the predetermined water area, the seat is fixed by a float around the sheet, and buoyancy is given by a cleaning float, and the seat is moored in a floating state in the predetermined water area. Have been. When the ship enters the predetermined water area from the approach path, the ship moves while pushing the sheet downward below the bottom of the ship against the buoyancy of the cleaning float. At this time, the cleaning function portion of the cleaning float rubs the bottom of the ship, and removes marine organisms and the like attached thereto. Even when the ship is anchored, when the ship swings due to waves and tides, the cleaning function layer works and the cleaning function works.

In the present invention (claim 2), a seat fixing means fixed to the stern of a ship anchored is provided at the rear end of the seat. In such a configuration, after the ship enters the predetermined water area, the operator secures the seat fixing means by lifting it up to the ship.

[0008] In the present invention (claim 3), the cleaning float is made of a rectangular soft foamed resin body having a cleaning function layer on the surface, and is disposed in a direction perpendicular to the approach direction of the hull, and has one end. The side is fixed to the float and the other end is fixed to the sheet. With this configuration, buoyancy is given to the cleaning float, and the buoyancy also acts on the sheet.

[0009] In the present invention (claim 4), the cleaning function layer may be provided with irregularities formed on the surface of the soft foamed resin body, a raised body implanted on the surface of the soft foamed resin body, or the soft foamed resin. It is made of any of nonwoven fabrics adhered to the surface of the foamed resin body. In such a configuration, the cleaning float rubs the bottom of the ship due to relative movement between the bottom of the ship and the cleaning float, thereby removing the adhesion to the bottom of the ship.

[0010] In the present invention (claim 5), the cleaning floats are alternately extended from the floats located on the right and left of the berthed ship at least at the approach center line. In such a configuration, the seat is in contact with the bottom of the ship along the shape of the bottom of the ship, that is, substantially in a V-shape.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 8, reference numeral 1 denotes a flexible sheet, for example, a PE (polyethylene) woven fabric or a nylon woven fabric, on both sides of which a PVC (polyvinyl chloride) resin is laminated and waterproofed. It consists of a sheet and the like. The size of the flexible sheet 1 is large enough to completely cover the bottom 2 of the ship. Also flexible sheet 1
Has a shape that follows the rim of the ship when unfolded, with its narrow side 1A covering the bow facing the pier and the wide side 1 covering the stern.
B is installed facing the side where the ship enters as shown by arrow G.

A plurality of cylindrical floats 4 are attached to the periphery of the flexible sheet 1, specifically, to the left and right ends thereof. These floats 4 cause buoyancy to act on the sheet 1 and are made of a resin member, for example, PE (polyethylene), ABS, or the like. The size of the cylindrical float 4 is, for example, as shown in FIG.
m and the length (L) can be 1 m.

Then, on one end side of each of the floats 4,
A cleaning float 6 made of a soft foamed resin such as foamed EVA, foamed PE, or foamed PVC, and having a rectangular shape with irregularities 5 formed on the upper surface side is provided. When the ship enters the mooring area where the flexible sheet 1 floats by the cleaning float 6, the unevenness 5 on the surface of the cleaning float 6 is obtained.
Rubs against the bottom 3 of the hull 2 and removes barnacles, seaweeds, and marine creatures such as eggs attached to the bottom 3 by scraping them off. Therefore, the soft resin foam having the rectangular shape has unevenness 5 on its surface.
Acts as the cleaning function layer 7.

In this embodiment, the cleaning function layer 7 is used.
Although the unevenness 5 is used, the present invention is not limited to this, and other cleaning means can be employed. For example, as shown in FIG. 9, a brushed body a planted on the surface of the cleaning float 6 made of a soft foamed resin body, or a nonwoven fabric b adhered to the surface of the cleaning float 6 as shown in FIG. The cleaning function layer 7 can be formed with these.

As shown in FIGS. 5, 7 and 8, the cleaning float 6 and the float 4 have a plurality of through holes 8 on the left and right of the center of the cylindrical surface of the float 4. As shown in FIGS. Since the flanges 9a and 9b are formed so as to protrude horizontally, a fitting recess 10 formed on the mounting end side of the cleaning float 6 is fitted into one of the flanges 9a, and a plurality of bolts 11 are inserted therein. Penetrate up and down, and nut 12
And the upper and lower sides are sandwiched between metal plates 19, 19, and fixed together.

On the other hand, the float 4 is mounted on the flexible sheet 1 by the following method. That is, FIG.
As shown in FIG. 1, the edge of the flexible sheet 1 is folded and sewn to form a sheet end, a rope insertion hole 13 is provided, and a plurality of eyelets 14 are provided in the sheet overlapping portion inside the rope. Is provided.

Therefore, the flange 9b is overlapped with the edge of the flexible sheet 1 by utilizing the flange 9b on the opposite side of the float 4 to the side where the cleaning float 6 is mounted. After aligning the through hole 8 of 9b with a plurality of eyelets 14 of the sheet, the holes 8 and eyelets 14 are tied and fixed to each other through a rope 19, so that the right and left ends on the upper surface side of the flexible sheet 1 The float 4 can be attached and fixed.

In this case, the floats 4 located on the left and right sides of the flexible sheet 1 are attached to the flexible sheet 1 at positions where they face each other. And each float 4
The free end side of each of the cleaning floats 6 provided on one end side is tied and fixed to the sheet 1 by a rope 15 as shown in FIG. 16 is the flexible sheet 1
The through hole of the fixing rope 15 opened in the above.

Thus, on the upper surface side of the flexible sheet 1, the floats 4 are provided so as to be alternately arranged on the left and right sides, and from each of the floats 4, the cleaning float 6 is provided on the center side of the flexible sheet 1. Extend alternately toward. That is, the cleaning floats 6 are arranged alternately in the direction perpendicular to the traveling direction G of the boat 2. Further, the cleaning float 6 is provided on the surface of the flexible sheet 1 with such a length as to extend to a position beyond the approach line center line n of the ship.

The left and right floats 4 are tied to each other by being tied to a rope 17 passed through a rope insertion hole 13 of the seat 1, and the front and rear ropes 17, 1
Attached to the end of 7 is another vertical cylindrical float 18 installed underwater. The float 18 has a ballast 19 suspended from the float 4 and is floated in the vertical direction. By connecting a rope 17 to the upper part of the float 18, the bow 1 and the stern sheet 1 are lifted and the hull is wrapped. I have.

The plurality of floats 4 and the cleaning float 6 provided thereon provide buoyancy to the flexible sheet 1, and the flexible sheet 1 is installed in a predetermined water area where a ship enters and anchors. Is done. The four vertical cylindrical floats 18 in the outer region of the sheet 1 are also provided.
Also exerts buoyancy on the seat 1.

Incidentally, the rear end of the flexible sheet 1 is attached in the lateral direction, and the occupant can grab the left and right protruding ends 22d protruding out of the sheet 1 and lift the sheet 1 on board. A ready-made pipe 22 is provided. Further, a sheet fixing means 23 for fixing the raised sheet 1 to the stern to be anchored is provided at the rear end of the flexible sheet 1. This sheet fixing means 2
3 is, for example, a rope attached to the rear end of the seat,
A stern side hook or the like to which the rope is connected and fixed can be used. From such a flexible sheet 1, a surrounding float 4 provided on the surface side thereof, a cleaning float 6 arranged perpendicularly thereto, and a sheet fixing means 23 for fixing the rear end of the sheet 1 to the stern, etc. Hull protective equipment 3
0 is configured.

Before entering the port of the ship, the flexible sheet 1 of the protective equipment 30 is installed in a state of being spread flat as if floating on the sea surface as shown in FIG.
Is also almost horizontal.

Here, when the ship enters from the direction of arrow G, the flexible sheet 1 follows the bottom shape of the hull 2, that is, substantially V-shape, and comes into contact with and covers the bottom 3. become.

When the ship enters, the cleaning floats 6 which are alternately arranged in a direction perpendicular to the approaching direction G come into contact with the bottom 3 of the ship, and the cleaning floats 6 move with the relative movement. The surface irregularities 5 rub against the bottom 3 of the ship, so that marine life such as barnacles, seaweeds and their eggs are actively scraped off and removed. The same removing action is performed and performed similarly when the ship leaves the ship, with the relative movement between the cleaning float 6 and the bottom 3 of the ship. Thus, the cleaning of the bottom 3 is automatically performed when the ship enters the pier for anchoring and when leaving the pier for departure. Also, even when the hull 2 is swung by waves and tides even when the berth is in berth, the cleaning float 6 comes into contact with the bottom 3 of the ship,
The cleaning function operates to clean the bottom 3 of the ship. Therefore,
The bottom of the hull 2 can be automatically cleaned without performing a manual operation of cleaning the bottom 3 of the hull 2 at anchor using a conventional cleaning brush or the like.

When the hull 2 is completely contained in the seat 1, the occupant grasps the protruding end 22d of the pipe 22 at the rear end of the flexible sheet 1 and pulls it up. After the hoisting, the setting is completed by fixing the rear end of the seat 1 to the stern by the above-described sheet fixing means 23 using the rope and the hook.

As a result, the amount of seawater inside the seat 1 is small, and the seawater around the hull 2 is cut off and isolated, so that fresh seawater is no longer supplied into the seat 1 from the outside. It becomes difficult and eggs of seaweeds in the seawater will eventually die and will not adhere. Also,
Since marine life from the sea area outside the flexible sheet 1 is also prevented from entering the sheet, there is no need to worry about their attachment, and the bottom of the ship is always kept clean. The flexible sheet 1
As described above, it is preferable to be configured with a waterproof sheet in order to shut off the external seawater. However, the ship and seat 1
In the meantime, a rubbing action is always generated by the rocking of the ship, so that even a sheet that allows seawater to pass through can expect some cleaning action.

When the ship is not anchored on the seat 1 (FIG. 12), the flanges 9a and 9b of the float 4 are substantially horizontal, but when the ship is anchored on the seat 1 (FIG. 13).
The sheet 1 and the cleaning float 6 are pushed down by the hull 2. Along with this, the float 4 rotates in the direction P in the figure, and the outer flange 9b is lifted, so that the edge of the sheet 1 rises from the sea surface. Thereby, it is possible to suppress the intrusion of seawater due to waves into the berthing water area surrounded by the seat 1. Such a configuration is effective when a waterproof sheet is used as the sheet 1 and the berthing water area and the open sea are shut off.

[0030]

As described above, according to the present invention (claim 1), when a ship enters and leaves a flexible sheet provided with buoyancy by a float and installed in a predetermined water area, the ship has flexibility. When the cleaning float fixed to the surface of the sheet is pushed down along the bottom of the ship to cover it, it comes into contact with the bottom of the ship and moves to actively remove marine products and the like adhering to it. Can be removed. As a result, the bottom of the ship is automatically cleaned automatically when the ship enters or leaves the port or when the ship is berthed, and therefore, does it require any manual labor such as cleaning with a conventional brush? , Or can be reduced, the attached matter on the bottom of the ship can be efficiently removed, and the cleaning can be easily performed.

Further, according to the present invention (claim 2), when a waterproof sheet is used as the flexible sheet, since the sheet fixing means is provided at the rear end portion, the boat has finished entering the sheet. Then, pull up the rear end of the seat and fix it to the stern to isolate the seawater in the seat from the seawater around the hull. As a result, fresh seawater is not supplied into the sheet, which makes it difficult for marine organisms such as seaweed eggs to survive,
They die and no longer attach to the bottom of a berthing vessel. In addition, marine life is prevented from entering the seat, and the bottom of the ship can be kept clean.

Further, according to the present invention (claim 3), the cleaning float made of the soft foamed resin is disposed on the sheet surface in a direction perpendicular to the direction of entry of the ship, so that the cleaning float is made to have irregularities on the cleaning float surface. The cleaning function layer makes uniform contact so as to trace the ship's bottom from the bow to the stern, and can reliably remove attached matter such as barnacles and marine organisms such as seaweed eggs. In addition, the cleaning function layer can use easily available removing means such as a brush (brushed body) or an attached nonwoven fabric, and is inexpensive.

Further, the float around the sheet and the cleaning float existing on the sheet surface so as to cross the sheet float,
Due to the buoyancy that causes the entire surface of the seat to float uniformly, the seat pushed down by the approach of the ship is covered along the bottom of the ship, making uniform contact with the bottom of the ship. it can.

According to the present invention (Claim 4), the cleaning function layer may be formed of irregularities formed on the surface of the soft foamed resin.
An implanted brushed body or an attached nonwoven fabric can be used, and these can be expected to have good abrasion due to the relative movement between the cleaning float and the bottom of the ship, and the attached matter from the bottom of the ship is effective. Will be removed. Further, brushes (brushed bodies) and non-woven fabrics forming these cleaning functional layers are easily available and inexpensive.

Further, according to the present invention (claim 5), the cleaning floats extending alternately from the floats located on the left and right sides of the sheet so as to cross the floats extend at least over the approach center line. , So the cleaning float does not leave a portion that is not in contact with the substantially V-shaped ship bottom,
Since it comes into uniform contact, it is possible to efficiently remove deposits.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an installation state of a hull protector according to the present invention installed in a predetermined water area before entering a ship.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

FIG. 3 is a perspective view showing a state in which the hull protective equipment covers the bottom of the marine vessel after entering the port.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 shows a flexible sheet which is a component of the protective device,
FIG. 4 is a partial perspective view showing, in an enlarged manner, a state in which a float for applying buoyancy and a cleaning float having buoyancy and cleaning action are mounted.

FIG. 6 is a plan view (a) and a side view (b) of a cleaning float.

FIG. 7 is an attachment structure diagram showing a structure of an attachment portion between the float and the cleaning float.

FIG. 8 is a perspective view of the mounting portion.

FIG. 9 is a perspective view of a cleaning float according to another embodiment in which a cleaning function layer is formed by a raised body.

FIG. 10 is a perspective view of a cleaning float according to another embodiment in which a cleaning functional layer is formed of a nonwoven fabric.

FIG. 11 is a partial perspective view for explaining how to attach a float and a flexible sheet.

FIG. 12 is a diagram illustrating the relationship between the float and the sheet when the flexible sheet is floating on the float before entering the vessel.

FIG. 13 is a diagram illustrating the relationship between the movement of the float and the sheet following the float when the flexible sheet is pushed down by the approach of the ship and is cleaned by the cleaning float at the bottom of the ship.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible sheet 2 Hull 3 Ship bottom 4 Float 5 Unevenness 6 Cleaning float 7 Cleaning function layer 23 Sheet fixing means n Center line of approach path

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinji Fujimoto 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Pref. Inside the Molten Company (72) Inventor Hideki Yamashita 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Pref. In the Molten

Claims (5)

[Claims] 1. A flexible sheet installed in a predetermined water area where a hull enters and anchors, a float attached to a portion around the sheet except for an approach path of the hull, and the approach of the hull A cleaning float fixed to the surface of the sheet with which the bottom of the boat comes into contact, the cleaning float imparts buoyancy to the sheet and comes into contact with the bottom of the boat to attach to the surface of the marine organism and the like. A protective device for a hull, comprising a cleaning function layer for removing water. 2. The protector for a hull according to claim 1, wherein a seat fixing means fixed to a stern of a berthing ship is provided at a rear end of the seat. 3. The cleaning float is made of a rectangular soft foamed resin body having a cleaning function layer on the surface, and is disposed in a direction perpendicular to the direction of entry of the hull, one end of the cleaning float being the other end of the cleaning float. 3. The hull protector according to claim 1, wherein the protector is fixed to a seat. 4. The cleaning function layer is attached to irregularities formed on the surface of the flexible foamed resin body, a raised body implanted on the surface of the flexible foamed resin body, or adhered to the surface of the flexible foamed resin body. The hull protection device according to any one of claims 1 to 3, wherein the protection device is made of any one of non-woven fabrics. 5. The cleaning float according to claim 2, wherein the cleaning floats are alternately extended from the floats located on the left and right of the berthed ship to at least a center line of the approach road. The hull protection described in.