JP2002362474A - Small craft, and manufacturing method of hull for small craft - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small craft in which the strength of an FRP(Fiber Reinforced Plastic) hull can be maintained without providing longitudinals, a deck can be assembled or disassembled by solving problems that adhesion works are difficult in ensuring the strength by longitudinals, dusts and gases caused by roughening an adhered surface by the sanding are scattered, the deck cannot be replaced when the deck is broken since each part is adhered, and the craft cannot be disassembled in the disposal. SOLUTION: The hull is constituted by filling an insulating foam in a space between an FRP inner shell showing the shape of the inner shell of the hull and an FRP outer shell showing the shape of the outer shell of the hull, and the deck is attachably/detachably fixed to the hull by an attachment/detachment device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small boat such as a small boat, a small pleasure boat, a small fishing boat, etc., and more particularly to a small boat having a hull (hull) made of FRP (fiber reinforced plastics).

[0002]

2. Description of the Related Art FIG. 9 to FIG.
1 shows a configuration of a conventional small boat 50 made of RP (fiber reinforced plastics). Typical components of the small boat 50 made of FRP (fiber reinforced plastics) are a hull (hull) 51, a longge 52, a deck (deck) 54, and a bridge 58. The hull (hull) 51 is a hull (hull) 5
FR along the inner surface of the mold created to shape the outer shape of 1.
P (fiber reinforced plastics) is formed to a predetermined thickness. This hull (hull) 51 has a thickness of about 10 m.
m, the strength of the hull (hull) 51 is low because of its thin single-plate structure. The reinforcement member 52 is attached and reinforced. The longe 52 is also referred to as a longitudinal member or a rib, and the periphery of a contact portion 53 between the longe 52 and the bottom of the hull (hull) 51 is adhesively fixed by a FRP (fiber reinforced plastics) in a lined state. For this reason, there are many adhesion parts by FRP (fiber reinforced plastics), the working time is long, and much cost is required.

In order to improve the adhesion and fixation, FRPs (fiber reinforced plastics) for the adhesion and fixation are used, respectively.
Is bonded to a long surface 52 and a hull (hull) 51 by a rough surface forming device called a belt sander to form a rough surface (sanding).
Bonded by P (fiber reinforced plastics).
In this rough surface forming work, a lot of dust is scattered and gas is generated from FRP (fiber reinforced plastics), which is not good for health. Therefore, it is necessary to take measures to prevent the suction of such dust and gas. Become.

FIG. 9 is an explanatory view of a manufacturing process of a conventional small boat, and arrows indicate the order of the processes related thereto. After attaching the longe 52 to the hull (hull) 51 as described above, a deck (deck) 54 is placed on the longe 52, and a paste-like adhesive is attached to a contact portion 55 between the longe 52 and the deck (deck) 54. A material is provided, thereby bonding the longe 52 and the deck (deck) 54. Reference numeral 58 denotes a bridge provided on a deck (deck) 54, which may be a center console type, a caddy type, or a cabin type. FIG. 10 shows a cross-sectional structure of a ship in a state where each part is assembled.

In the structure of a ship, as shown in FIG. 11, a bull work top 57 for covering the upper end of a rising edge around a hull (hull) 51 is formed integrally with a deck (deck) 54, and FIG. So, deck 54
Is a substantially flat form that covers the bottom of the hull (hull) 51 and has a different structure from the bulwark top 57 that is attached so as to cover the upper end of the rising rim around the hull (hull) 51. There is also. Parts such as cleats and handrails are attached to the upper surface of the bulwark top 57. In the embodiment of FIG. 12, since the lower side of the bulwark top 57 is open, the work of attaching these parts can be easily performed. Since the lower side of the bull work top 57 is closed, the mounting work is also performed on the deck (deck) 5.
It is necessary to perform it before assembling of No. 4, which is not preferable from the viewpoint of working steps.

In the embodiment shown in FIG. 11, an FRP (Fiber Reinforced Plastics) is provided around a bull work top 57 at the upper end of a deck 54 and a rising edge around a hull 51 so as to hide the gap. Is glued. In the embodiment of FIG. 12, the peripheral portion 56 of the deck (deck) 54 corresponding to the hull (hull) 51 is a hull (hull).
FRP (Fiber Reinforced Plastics) is adhered so as to eliminate the gap with 51. In this case, the back side of the peripheral edge portion 56 of the deck (deck) 54 is bonded with a FRP (fiber reinforced plastic) from a hatch or the like provided on a part of the deck (deck) 54.

[0007] In the above, the deck (deck) 54
The bulwarktop 57 and the hull (hull) 51 at the upper end, the rising part around the hull 51, and the longe 52 and deck (deck)
Similarly to the above, the contact portion 55 with the contact portion 54 and the peripheral portion 56 of the deck (deck) 54 and the portion of the hull (hull) 51 are roughened by sanding with a rough surface forming device, thereby forming a paste-like adhesive material. And FRP (fiber reinforced plastics) to improve the adhesive effect. For this reason, in the same manner as described above, in this rough surface forming operation, a lot of dust is scattered and gas is generated from FRP (fiber reinforced plastics), which is not desirable for health. Etc. are required.

Further, in order to increase the strength of the ship 50 by bonding the longe 52 to the deck (deck) 54, the bonding between the longe 52 and the deck (deck) 54 is improved in order to improve the bonding. Requires a gap for the paste-like adhesive to intervene, but it is quite difficult to control the size of this gap. And the front and back around the deck (deck) 54 are F
There is also a problem of difficulty in the operation of bonding with RP (fiber reinforced plastics).

[0009]

The above conventional steps are shown by arrows in FIG. FRP made in this way
(Fiber reinforced plastics) For small vessels made of hulls (hulls), as described above, along with securing the strength by longing, difficulties in bonding work, rough surface processing by sanding the bonded surface, and rough surface processing by sanding There is a problem such as scattering of generated dust and gas.

[0010] Further, since the respective parts are adhered as described above, the small boat made in this manner is hardly disassembled, so that, for example, even when the deck 54 is broken, The deck (deck) 54 is almost impossible to remove and cannot be replaced substantially. In addition, when a ship is abandoned, there is a problem that it is necessary to cut it into a size that is easily transported and discard it because it cannot be disassembled and disposed.

In view of the above, the present invention maintains the strength of an FRP (fiber reinforced plastics) hull (hull) without providing a conventional longage, and prevents dust and gas generated by sanding. An object of the present invention is to provide a small boat that can be assembled and disassembled on a deck (deck) without any problem such as scattering, and has less labor and cost in the case of abandoned boat.

[0012]

SUMMARY OF THE INVENTION Accordingly, the present invention provides
An inner shell mold having an inner shell shape of a hull (hull) and an outer shell mold having an outer shell shape of a hull (hull) are prepared.
(Fiber Reinforced Plastics) forming the inner shell and the outer shell of the hull (hull) on the surfaces of the inner shell mold and the outer shell mold, respectively, and forming the inner shell mold holding the inner shell. The outer shell mold holding the outer shell is combined with the inner shell and the outer shell such that there is a space filled with the foamed heat insulating material.In this combined state, the filled space is filled with the foamed heat insulating material. A method for manufacturing a hull (hull) for a small boat, which constitutes a hull (hull) in which the inner shell and the outer shell are integrated by the foamed heat insulating material.

[0013] By this manufacturing, a hull made of FRP (fiber reinforced plastics) which can maintain sufficient strength without providing a conventional long pipe can be produced, and problems such as scattering of dust and gas due to sanding can be produced. Disappears. In the filling process of the foamed heat insulating material, since the foamed heat insulating material is filled by using the mold for producing the hull (hull), the inner shell and the outer shell produced by using the mold for producing the inner shell and the outer shell are used. There is no need to transfer the shell to the mold for filling with foam insulation, and the hull (hull) is poorly manufactured due to poor fitting of the foam insulation to the mold for filling due to deformation of the inner shell and outer shell that occur during the transfer. No more problems.

The present invention also provides an inner shell made of FRP (fiber reinforced plastics) having an inner shell shape of a hull,
An outer shell made of FRP (fiber reinforced plastics) having an outer shell shape of a hull, and a foam filling the space between the inner shell and the outer shell to integrate the inner shell and the outer shell. It has a hull (hull) composed of heat insulating material, and a deck (deck) provided in the hull (hull), and attaches and detaches the deck (deck) to and from the hull (hull) by a detachable device. Provide a small ship fixed as possible.

[0015] This makes it possible to produce a hull made of FRP (fiber reinforced plastics) having sufficient strength without providing a conventional long pipe, and there is also a problem of scattering of dust and gas due to sanding. Disappears. In addition, since the deck (deck) can be assembled and disassembled with respect to the hull (hull), it is possible to unitize the parts, and it is possible to assemble the deck (deck) with different designs of colors and shapes, so that the design can be varied. Further, it is possible to provide a small boat with less trouble and cost in the case of replacement of a deck (deck) when it is damaged or in the case of abandoned boat.

The present invention also provides a watertight structure between the hull (hull) and the deck (deck) at a position different from a fixing position of the deck (deck) and the hull (hull) by the attachment / detachment device. A small boat provided with a seal portion is provided. If the attachment position of the deck (deck) and the hull (hull) by the attachment / detachment device and the watertight seal between the hull (hull) and the deck (deck) are to be made at the same location, the watertight structure becomes complicated. However, it can solve the problem.

Further, the present invention is characterized in that the watertight seal portion is formed by an upper end flange of a wall on which a peripheral edge of the deck (deck) is raised and a step formed on the hull (hull). Provide small boats. by this,
Water that has spilled or entered on the deck can hardly touch the watertight seal portion, so that the seal structure can be achieved with a simple configuration.

[0018]

Next, an embodiment of the present invention will be described. 1 to 8 show one embodiment of the present invention. FIG. 1 is an explanatory view of a manufacturing process of a small boat according to the present invention, FIG. 2 is an explanatory view of a combination of a deck (deck) and a cabin on a foamed hull (hull), and FIG. 3 is a cross-sectional structure taken along the line AA in FIG. FIG. 4 is a perspective view showing an engagement portion between a foam hull (hull) and a deck (deck), and FIG. 5 is a cross-sectional structure of a fixing portion for fixing the deck (deck) to the foam hull (hull). FIG. 6 is another embodiment of the cross-sectional structure of the fixing portion for fixing the deck (deck) to the foam hull (hull), FIG. 7 is an exploded perspective view of the embodiment of FIG. 6, and FIG. It is a further embodiment figure of the fixing | fixed part which fixes a deck (deck) to a foam structure hull (hull).

Hereinafter, an embodiment of a small boat according to the present invention will be described with reference to the drawings. A hull (hull) 2, which is a main component of the small boat 1 of the present invention, includes an inner shell 3 made of FRP (fiber reinforced plastics) having an inner shell shape of the hull 2, and an outer shell 3 of the hull 2. An outer shell 4 made of FRP (fiber reinforced plastics) having a shell shape, and a foamed heat insulating material 5 filled in a space between the inner shell 3 and the outer shell 4 to integrate the inner shell 2 and the outer shell 3
And a foam hull (hull) composed of: Also,
The deck (deck) 6 provided in the hull (hull) 2 is
It is formed in a predetermined shape by RP (fiber reinforced plastics). Then, the deck (deck) 6 is connected to the hull (hull) 2
Is detachably fixed by a detachable device 7. The attaching / detaching device 7 may be a detachable fixing screw system, a detachable fastener system,
Further, a detachable hook method, a detachable method by inserting and removing a locking (lock) pin, and other suitable detachable methods are also available.

The present invention is characterized by a method of manufacturing the hull (hull) 2. That is, the method of manufacturing the hull (hull) 2 includes the inner shell mold 8 having the inner shell shape of the hull (hull) and the hull (hull).
A shell mold 9 having an outer shell shape of 2 is prepared, and FRP is prepared.
The inner shell 3 and the outer shell 4 of the hull (hull) 2 are formed on the surface of the inner shell mold 8 and the outer shell mold 9 by (fiber reinforced plastics), respectively, and the inner shell mold holding the inner shell 3 is formed. 8 and an outer shell mold 9 holding the outer shell 4 are combined so that a space for filling the foamed heat insulating material 5 exists between the inner shell 3 and the outer shell 4. The hull (hull) 2 in which the inner shell 3 and the outer shell 5 are integrated by the foamed heat insulating material 5 is manufactured.

When the hull (hull) 2 having the foam structure is manufactured, the inner shell 3 and the outer shell 3 of the hull (hull) 2 are formed on the surfaces of the inner shell mold 8 and the outer shell mold 9 by FRP (fiber reinforced plastics). After the shell 4 is formed, the inner shell 3 and the outer shell 4 are removed from the molds 8 and 9 and transferred to a mold for filling with a heat insulating material and set. In this method, the inner shell 3 and the outer shell 4 are large, so that they are deformed after being removed from the molds 8 and 9 in this method. Therefore, even if the inner shell 3 and the outer shell 4 are transferred to the heat-insulating material filling mold and set, it is difficult or impossible to accurately set the heat-insulating material filling mold. However, in the present invention, since the foam insulation is filled using the molds 8 and 9 for manufacturing the inner shell 3 and the outer shell 4, the inner shell 3 is filled.
There is no need to transfer the inner shell 3 and the outer shell 4 produced by using the mold for producing the outer shell 4 and the inner shell 3 to the filling mold of the foamed heat insulating material, and the deformation of the inner shell 3 and the outer shell 4 caused at the time of the transfer. The problem of poor production of the hull (hull) due to poor fitting of the foamed heat insulating material to the filling mold is also eliminated.

In manufacturing the inner shell 3 and the outer shell 4, the inner shell 3 and the outer shell 4 are easily separated from the inner shell mold 8 and the outer shell mold 9, respectively. A release agent is applied to the surface of 9. The foamed heat insulating material 5 is made of closed-cell foamed polyurethane so as not to contain moisture.

FIG. 1 is an explanatory view of the manufacturing process of the small boat 1, and the arrows indicate the order of the processes related thereto. The deck (deck) 6 may be formed as a single product, or may be divided into two as shown in FIG. 1 depending on its size. The hull (hull) 2 has a sufficient strength because it has a foamed structure as described above. For this reason, there is no need for reinforcement by a longage as in the related art.

FIG. 3 shows a bull worktop 10 covering the upper edge of the hull (hull) 2 having a different structure from the deck (deck) 6. As shown in FIG. 3, a bulwark top 10 is attached to the upper edge of the hull (hull) 2 configured as described above with a fixing screw so as to cover the upper edge. 10 </ b> A is a border covering the outer periphery of the bullwork top 10. Deck 6 is the hull 2
The hull (hull) 2 has a rising wall so as to be supported by the inner surface of the hull 2, that is, the inner shell 3. Deck 6 to Hull 2
FIGS. 4 and 5 show a specific configuration in a case where the device is detachably fixed to the device by the attaching / detaching device 7.

In FIGS. 4 and 5, the inner shell 3 has a first step 11 at a position opposing the peripheral edge of the deck 6.
And a second step portion 12 are formed vertically. On the other hand, a first locking portion 13 and a second locking portion 14 are formed on the periphery of the deck (deck) 6 so as to correspond to the first step portion 11 and the second step portion 12. I have. In particular, the first locking portion 13 is formed by a flange extending substantially horizontally outward at the upper end of a wall 40 that rises the peripheral edge of the deck (deck) 6. In this configuration, the first locking portion 13 and the second locking portion 14
The deck (deck) 6 is assembled inside the hull (hull) 2 so as to correspond to the first step 11 and the second step 12, respectively. First step 11 and first locking part 13
And a first locking portion so that the space between the first locking portion 13 and the first step portion 11 is watertight with an elastic sealing material 15 interposed therebetween. 13 to the first step 11
Is fixed by a fixing screw 16 as a detachable device 7.
As a result, a watertight seal portion 41 is formed around the deck (deck) 6, and it is possible to prevent water from entering the cabin below the deck (deck) 6.

As described above, the watertight seal portion 41 is formed by the upper end flange of the wall 40 on which the peripheral edge of the deck 6 is raised and the step portion 11 formed on the hull 2. The height of the rising wall 40 does not need to be extremely high, as long as the water-tight seal portion 41 can secure a height that does not immerse in the water spilled or entered on the deck (deck) 6. In a preferred embodiment, 1
Although 00 mm is adopted, the height before and after this is sufficient.

The sealing material 15 is preferably a foamable packing, one of which is urethane foam rubber. By this fixing, the second locking portion 14 is placed on the second step portion 12. The fixing screw 16 may be a thick portion of the inner shell 3 made of FRP (fiber reinforced plastics) or a hull (hull) 2.
It is configured to be screwed into a fixing portion 17 made of aluminum or the like embedded in the device. The deck (deck) 6 is reinforced by forming a plurality of reinforcing ribs extending in the lateral direction with a main gap on the back side thereof. Also, when the deck (deck) 6 is composed of two parts, the first deck (deck) 6A and the second deck (deck) 6B, the configuration for supporting and attaching to the hull (hull) 2 is the same as described above. The joint between the first deck (deck) 6A and the second deck (deck) 6B may have a connection structure that overlaps each other and maintains a watertight state.

Drainage grooves 18 are formed around the deck 6 so that water on the deck 6 communicates with the outside of the vessel 1. Reference numeral 19 shown in FIG. 3 denotes a bridge provided on the deck (deck) 6, and there are a center console type, a caddy type, and a cabin type depending on the type. When the deck (deck) 6 is separated from the hull (hull) 2, it can be achieved by removing the fixing screw 16.

As described above, the watertight seal portion 41 between the hull (hull) 2 and the deck (deck) 6 is connected to the upper end flange of the wall 40 where the periphery of the deck (deck) 6 is raised and the hull (hull).
6 is a small boat formed by the step portion 11 formed in the small boat 6. As a result, the deck (deck) 6
The water that has entered above hardly touches the watertight seal portion 41, so that the seal structure can be achieved with a simple configuration.

Another embodiment in which the deck (deck) 6 is detachably attached to the hull (hull) 2 is shown in FIGS.
1 to 5 indicate the same parts. The attachment / detachment device 7 shown in FIGS. 6 and 7 is a fixed screw type. 6 and 7, the inner surface of the hull (hull) 2, that is, the inner shell 3 is shown.
A step portion 20 is formed at a position corresponding to the locking portion 21,
The inner shell 3 is further formed with a plurality of projections 23 that form a substantially vertical mounting surface 22 below the stepped portion 20, and a substantially L-shaped metal fixture 24 is formed on the mounting surface 22. It is fixed with screws. The deck (deck) 6 has a substantially flat form that covers the bottom of the hull (hull) 2, rises around its periphery, and forms a locking portion 21 on a peripheral edge portion. Also, a mounting seat 25 is formed at a position corresponding to the fixture 24 at a low position. Mounting seat 2
5 is formed by recessing a part of the deck (deck) 6.

In this configuration, the locking portion 21 is placed on the step portion 20 via the foam packing 15 as described above.
In this state, the mounting seat 25 is fixed to the horizontal side of the fixture 24 by a fixing bolt screw 26 penetrating both and a nut 27 screwed thereto. As a result, the foamable packing 15 is compressed, and the space between the locking portion 21 and the step portion 20 becomes watertight. Reference numeral 28 denotes an FRP provided to cover the head of the fixing bolt screw 26 and the recessed portion of the mounting seat 25.
(Fiber reinforced plastics) plate, and the periphery of this plate 28 is sealed with a waterproof putty seal material with the FRP (fiber reinforced plastics) plate 28 covering the head of the fixing bolt screw 26 and the recessed portion of the mounting seat 25. This results in a watertight structure. Since the method using the fixing bolt screw 26 constitutes the detachable device 7, the fixing bolt screw 2
By removing the deck 6, the deck (deck) 6 can be separated from the hull (hull) 2. This operation is performed on the deck (deck) 6
Can be operated from the hatch formed in

FIG. 8 shows still another embodiment in which the deck (deck) 6 is detachably attached to the hull (hull) 2. FIG.
7 indicate the same parts. This configuration,
In the embodiment shown in FIGS. 6 and 7, a deck (deck) 6 is provided on the back side of the mounting seat 25 formed on the deck (deck) 6.
A locking member 30 having a locking portion 29 bent inward on the outer side of the periphery of the locking member 30 is fixed by a bolt screw 31 and a nut 32. In addition, instead of the fixing tool 24, a latch which engages with and disengages from the locking portion 29 of the locking tool 30 by the rotation of the operation lever 33 about the shaft 34 as a fulcrum, on the vertical mounting surface 22 of the protruding portion 23. The hook 35 is fixed with a screw. A fastener device 36 is constituted by the locking member 30 and a hook (hook) 35. The head of the fixing bolt screw 31 and the recessed portion of the mounting seat 25 are similar to those in FIGS.
This portion is covered with an FRP (fiber reinforced plastics) 28 and is in a watertight state.

In this configuration, the locking portion 21 is placed on the step portion 20 via the foam packing 15 as described above.
Then, the latch (hook) 35 is connected to the locking portion 2 of the locking member 30.
By rotating the operation lever 33 downward while being hooked on the hook 9, the latch (hook) 35 is kept in a state of being firmly locked on the locking portion 29. When the deck (deck) 6 is separated from the hull (hull) 2, the operation lever 33 is pivoted upward, so that a strong locking state between the hook 35 and the locking portion 29 is maintained. Since it is released, it can be achieved by manually removing the hook 35 from the locking portion 29. These operations can be performed from a hatch formed on the deck (deck) 6.

As described above, the watertight seal portion 41 between the hull (hull) 2 and the deck (deck) 6 is connected to the upper end flange-shaped engaging portion 21 of the wall 40 where the peripheral edge of the deck (deck) 6 is raised. (Hull) A small boat formed by the stepped portion 20 formed in the hull 6. As a result, the water that has entered the deck (deck) 6 hardly touches the watertight seal portion 41, so that the seal structure can be achieved with a simple configuration.

In the present invention, as described above, the hull (hull) 2 and the deck (deck) 6 are located at a position different from the fixing position of the deck (deck) 6 and the hull (hull) 2 by the attaching / detaching device 7. A watertight seal portion 41 is provided between them. When the fixing position between the deck (deck) 6 and the hull (hull) 2 by the attaching / detaching device 7 and the watertight seal portion 41 between the hull (hull) 2 and the deck (deck) 6 are to be performed at the same place, Although there is a problem that the structure becomes complicated, the present invention can solve the problem.

In the present invention, the watertight seal portion 41 between the hull (hull) 2 and the deck (deck) 6 is attached to the attaching / detaching device 7.
The position is higher than the fixed position between the deck (deck) 6 and the hull (hull) 2. by this,
Sealing between the deck (deck) and the hull (hull) by the attachment / detachment device can be achieved by a simple configuration, and the sealing operation can be simplified by the operation of the attachment / detachment device. In addition, since the operation with the detachable device can be performed from the hatch of the deck (deck), the operation becomes easy.

In the present invention, it is sufficient that the deck (deck) 6 can be attached to and detached from the hull (hull) 2. Therefore, the configuration of the attaching / detaching device 7 is not limited to the above. Or locked
It may be a detachable method by inserting and removing a pin, or any other suitable detachable method.

In the above embodiment, since the deck (deck) 6 and the bulwark top 10 are separate components,
The bottom side of the bull work top 10 can be configured to be open,
For this reason, there is an effect that attachment work of parts such as cleats and handrails can be easily performed. Instead, the bull work top 10 is formed integrally with the deck (deck) 6 so as to stand up from the deck 6, and a sealing material 15 is interposed between the bull work top 10 and the upper surface of the helicopter of the hull (hull) 2. In this manner, a seal portion may be formed, and a detachable device 7 having the above-described structure may be provided below the seal portion, and a deck (deck) 6 may be attached.

The present invention is not limited to the above-described embodiment, and various modifications can be considered without departing from the technical scope of the present invention, and include various embodiments according to the modification.

[0040]

According to the first aspect of the present invention, a hull made of FRP (fiber reinforced plastics) having sufficient strength can be produced without providing a conventional longage, and dust and gas generated by sanding can be produced. Problems such as scattering are eliminated. In the filling process of the foamed heat insulating material, since the foamed heat insulating material is filled by using the mold for producing the hull (hull), the inner shell and the outer shell produced by using the mold for producing the inner shell and the outer shell are used. There is no need to transfer the shell to the mold for filling with foam insulation, and the hull (hull) is poorly manufactured due to poor fitting of the foam insulation to the mold for filling due to deformation of the inner shell and outer shell that occur during the transfer. No more problems.

According to the second invention, a hull made of FRP (fiber reinforced plastics) having sufficient strength can be produced without providing a conventional long pipe, and scattering of dust and gas due to sanding can be achieved. The problem of is gone. Also, since the deck (deck) can be assembled and disassembled with respect to the hull (hull), it is possible to unitize the parts, and it is possible to assemble the deck (deck) with a design different in color and shape, so that the design can be varied. . Furthermore, in the past, when the deck (deck) was damaged, it took time to repair or the appearance design was damaged by the repair, and when the damage was severe, the ship was abandoned, but in the present invention,
It is also possible to replace the deck (deck) when it is damaged, and it is preferable from the viewpoint of effective use of resources because the hull (hull) can be newly used by replacing the deck (deck).
Further, it is possible to provide a small boat with less labor and cost in the case of abandoned boats.

According to the third aspect of the present invention, the fixing position between the deck (deck) and the hull (hull) by the attachment / detachment device and the watertight seal between the hull (hull) and the deck (deck) are to be performed at the same location. Then, there is a problem that the watertight structure becomes complicated, and the problem can be solved.

According to the fourth aspect of the present invention, the water spilled or entered on the deck can hardly touch the watertight seal portion, and therefore the seal structure can be achieved with a simple structure. .

[Brief description of the drawings]

FIG. 1 is an explanatory view of a manufacturing process of a small boat of the present invention.

FIG. 2 is an explanatory view of a combination of a deck (deck) and a cabin to a foamed hull (hull) of the present invention.

FIG. 3 is an explanatory cross-sectional structure view taken along the line AA of FIG. 1;

FIG. 4 is a perspective view showing an engaging portion between a foamed hull (hull) and a deck (deck) of the present invention.

FIG. 5 is an embodiment of a cross-sectional structure of a fixing portion for fixing a deck (deck) to a foamed hull (hull) of the present invention.

FIG. 6 is a sectional view of another embodiment of a fixing portion for fixing a deck (deck) to a foam hull (hull) of the present invention.

FIG. 7 is an exploded perspective view of the embodiment of FIG.

FIG. 8 is a view showing still another embodiment of a fixing portion for fixing a deck (deck) to a foamed hull (hull) of the present invention.

FIG. 9 is an explanatory view of a manufacturing process of a conventional small boat.

FIG. 10 is a sectional view of a conventional small boat.

FIG. 11 is a partial sectional view of a conventional small boat having a deck (deck) structure integrally formed with a bullwork top.

FIG. 12 is a partial sectional view of a conventional small boat in which a bull worktop has a separate deck structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Small ship 2 ... Hull (hull) 3 ... Inner shell 4 ... Outer shell 5 ... Foam insulation 6 ... Deck (deck) 7 ... Detachable device 8 ... Mold for inner shell 9 ... Outer shell mold 10 Bull work top 11 First step 12 Second step 13 First locking part 14 Second locking part 15 Seal material 16 Fixing screw 17 Fixing part DESCRIPTION OF SYMBOLS 18 ... Drainage groove 19 ... Bridge 20 ... Step part 21 ... Locking part 22 ... Mounting surface 23 ... Projection part 24 ... Fixture 25 ... Mounting seat 26 ... Fixing bolt screw 27 ... Nut 36 ... Fastener device 40 ... Stand-up wall 41 ... Watertight seal

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) B29L 31:30 B29L 31:30 F term (reference) 4F204 AB02 AG03 AG20 AG24 AH28 EA01 EB01 EB13 EB24 EF05 EF27

Claims (4)

[Claims] 1. An inner shell mold having an inner shell shape of a hull (hull) and an outer shell mold having an outer shell shape of a hull (hull) are prepared, and the inner shell is formed by FRP (fiber reinforced plastics). An inner shell and an outer shell of the hull (hull) are formed on surfaces of a mold and an outer shell mold, respectively, and the inner shell mold holding the inner shell and the outer shell holding the outer shell are formed. The mold is combined with the inner shell and the outer shell so that a space for filling the foamed heat insulating material exists between the inner shell and the outer shell, and in this combined state, the filled space is filled with the foamed heat insulating material. A method for manufacturing a hull (hull) for a small boat, which constitutes a hull (hull) integrated with the outer shell. 2. An FRP having an inner shell shape of a hull (hull).
(Fiber Reinforced Plastics) inner shell, FRP (Fiber Reinforced Plastics) outer shell having an outer shell shape of a hull (hull), and filled in the space between the inner shell and the outer shell. A hull (hull) composed of an inner shell and a foamed heat insulating material that integrates the outer shell, and a deck (deck) provided in the hull (hull), wherein the deck (deck) is attached to the hull (Hull) A small boat that is detachably fixed to a hull using a detachable device. 3. The hull (hull) and the deck (deck) according to claim 2, wherein the hull (hull) and the deck (deck) are fixed at a position different from a fixing position of the deck (deck) and the hull (hull) by the attaching / detaching device.
A small ship provided with a watertight seal between the two. 4. The watertight seal according to claim 3, wherein the watertight seal portion is formed by an upper end flange of a wall on which a peripheral portion of the deck (deck) is raised and a step formed on the hull (hull). And a small ship.