JPS6052034B2 - Fiber-reinforced plastic small boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small boat made of fiber-reinforced plastic that has an air chamber formed inside the hull and a sliding material provided on the bottom surface of the hull located below the air chamber.

Usually, small vessels, especially fishing boats, are equipped with a sliding material on the bottom of the hull that slides against sleepers when beached, but this sliding material needs to be replaced when it wears out.

For this reason, it is desirable that the sliding member be fixed to the bottom wall of the hull with removable bolts and nuts. However, in order to increase buoyancy in small ships, an airtight space, that is, an air chamber, is sometimes constructed inside the hull. In particular, fishing boats for collecting kelp are often used in sea areas with rough waves, and when collecting kelp, seawater adhering to the kelp enters the vessel, so it is necessary to increase buoyancy.
It is practiced to form an air chamber within the hull. Generally, such air chambers are often distributed to the left and right sides of the hull, and therefore the air chambers are located above the sliding material. As a result, even if the sliding member is fixed with bolts and nuts in consideration of their replaceability, problems arise such as the work of attaching and removing the bolts and nuts cannot be carried out smoothly because the air chambers interfere with the work. The present invention was made based on the above circumstances, and an object thereof is to provide a small boat made of fiber-reinforced plastic in which the sliding material can be easily replaced without impairing the function of the air chamber.

An embodiment of the present invention will be described below based on drawings in which it is applied to a fishing boat for removing kelp.

In the figure, 1 is a hull made of F-R-P (fiber-reinforced plastic), and this hull 1 has bulkheads 2 and 3 spaced apart in the longitudinal direction.
The inside of the hull 1 is divided into four areas along the front-rear direction by 4 and 4.

A front deck 5 is provided at the bow, and a deck 6 is also formed between the bulkheads 2 and 3. Further, in the area formed between the partition walls 3 and 4, floors 7 and 7 are provided on the left and right sides. Furthermore, a rear deck 9 is also provided between the bulkhead 4 and the transom 8. Partition walls 10 and 10 are provided below the deck 6 between the partition walls 2 and 3, and fishing gear storage chambers 11 and 12 are formed between these partition walls 10 and 10. In addition, the storage chambers 11 and 12 have a hatch 13,
14 to be opened and closed. Further, air chambers 15, 15 are formed on the left and right outer sides of the partition walls 10, 10. At the bottom of the floors 7, 7, there are other air chambers 17, 1? surrounded by the bulkheads 3 and 4, their rising walls 16, 16, and the side of the hull 1. is formed. Furthermore, floor 7,
The top surface 18 of the bottom of the ship is exposed and has a concave shape.
Not only can harvested kelp be loaded into this area, but the crew members seated on floors 7 and 7 can also sit with their feet resting on the top surface 18 of the bottom of the ship. Furthermore, there are partition walls 19 on the left and right at the bottom of the rear deck 9.
19, and a storage chamber 20 for fishing gear and the like and a fuel tank chamber 21 are formed between these partition walls 19, 19. Note that the accommodation chamber 20 and the fuel tank chamber 21 are opened and closed by hatches 22 and 23. Air chambers 24, 24 are formed on the left and right outer sides of the partition walls 19, 19. It goes without saying that each deck is formed of F-R-P, and the partition walls are formed by overlaying F-R-P on a plywood board. Also, fuel tank chamber 2
A recess 25 is formed between the transom 1 and the transom 8, and is configured to accommodate the engine portion of an outboard motor (not shown) attached to the transom 8 when the engine is tilted. In addition, the left and right rear ends of the hull 1 extend rearward beyond the transom 8 and constitute portboards 50, 50, and these portboards 50, 50 are connected by a gunwale 26. There is. The gunwale 26 is formed inward at the upper edge of the hull 1 and is continuously formed around the entire circumference of the hull 1 .

In this case, the gunwale 26a portion located on the front deck 5 is wider at the bow than other portions and is formed larger toward the stern side. As shown in the imaginary line in Figure 3, when the crew members are collecting kelp or other kelp on the front deck 5, they should be in a position where they put their kneecaps on the deck 5 and lean their upper body forward from the bow. At this time, by placing your thighs against the inner edge of the gunwale 26a, this part is turned inward so that you can stably support your body even on a ship that is rocking at sea. It is a large overhang. The front bit 27 is erected on the front deck 5, and is made of a rust-free material such as stainless steel and is formed into a circular hollow column shape.

A flange portion 28 is formed in the middle of this bit 27, and this flange portion 28 is attached to the deck 5 with a screw 29.
It is fixed at... Also, the lower part of this flange part 28 is inserted under the deck 5, and the lower end is F-R.
-P is fitted and supported by the blind member 30. Also 31
is a rear bit installed on the rear gunwale 26,
This bit 31 is also made of a non-rust material and is formed into a circular hollow column shape. A flange portion 32 is formed in the middle of this bit 31, and this flange portion 32 is connected to the gunwale 26.
It is fixed to via screws 33. Further, the lower part of this bit 31 is fixed to a reinforcing plate 34 by covering it with F-R-P. In this way each bit 27
, 31 are formed using vibrator material, making it easy to manufacture, and also making it easier to manufacture the gunnel 26 and deck 5.
Since the bit insertion hole formed in the hole can also be formed in a circular shape, drilling is easy and the shape of the hole is highly accurate, making it easy to seal watertightly. On the bottom surface of the hull 1, first sliding members 35, 35 are attached to the left and right sides located relatively in the center, extending in the longitudinal direction of the hull 1, and at the rear of the hull 1. Second sliding members 35 and 36 are provided on the left and right sides, which are located relatively laterally. As shown in FIG. 4, each of the sliding members 35 and 36 is made of a resin material such as polyethylene. It is fixed by screwing 38. In this case, the heads of the bolts 37... are buried deeper than the lower surfaces of each sliding material 35, 36, and if the sliding material 36 is made of polyethylene, it is made of the same polyethylene. A plug 40 is fitted, and the lower surface of the plug 40 is formed to be flush with the lower surface of the sliding members 35 and 36. By the way, the second sliding members 36, 36 are located just below the air chambers 24, 24, and the nut 38 faces into these air chambers 24, 24. For this reason, a repair hole 41 is opened in the rear deck 9 forming the upper wall of the air chambers 24, 24. This repair hole 41 is always airtightly closed with a cap 42, and as shown in FIG. The cap 42 is attached with a sealant 46, and the cap 42 is removably screwed onto the mounting body 43. Note that 47 is a packing material. In addition, in Fig. 4, 48 is a longe, and the inside is filled with foamed urethane resin 49.
-R-P. In addition, the air chambers 2 are provided in the left and right vents 50, 50 that protrude rearward from the transom 8.
Partition walls 51, 51 forming rear end walls of 4, 24 are formed, and behind these partition walls 51, 51, a battery storage chamber 5 is formed.
2 and other tool storage chambers 53 are provided.

These accommodation chambers 52 and 53 are designed to be opened and closed by hatches 54 and 55. And as shown in Figure 6,
The battery 56 is placed on a floor surface 57 of the storage chamber 52, but this floor surface 57 can be removed if necessary.When this floor surface 57 is removed, the bottom surface of the hull is exposed. The sliding members 36, 36 extending in the section
Bolts 37 for fixing can be removed. The sliding members 35, 35 and 36, 36 on the lower bottom surface of the hull 1 having such a configuration will come into sliding contact with the top of sleepers laid on the beach when going up to the beach.

For this reason, the sliding materials 35, 35 and 36, 36 wear out and need to be replaced, but when replacing the second sliding materials 36, 36, the cap 42 is removed and the air chamber 24 is opened from the deck 9. Insert a tool into and lock the nut 38 with the tool. In this state, the plug 40 is removed from the bottom surface, and then the bolt 37 is removed. In addition, the floor surface 57 of the battery storage chamber 52
Remove the bolt from this part in the same way. As a result, the sliding materials 36, 36 can be removed from the hull 1 and can be replaced with new sliding materials. Conversely, when fixing a new sliding material, insert the tool into the air chamber 24 and tighten the nut 38.
can be supported while being prevented from rotating, and tools can be inserted into the battery storage chamber 52 to perform work.
In addition, the first sliding members 35, 35 can be easily replaced because their bolt portions are located in the fuel tank chamber 21, the storage chamber 20 for fishing gear, etc., the recess 18, and the other storage chambers 12, 11. . However, such sliding materials 35, 35, 36
, 36 are attached with the bolts 37 sunk in from the bottom, so not only will there be no problems such as the bolts 37 getting caught on sleepers when raising the beach, but there will also be no holes in the bolt heads. 39... are closed with plugs 40... and installed so that the bottom surface of the plugs 40 is flush with the bottom surface of the sliding materials 35, 35, 36, 36, so when sailing There is less water resistance, and the surface pressure on the sleeper is increased, reducing wear on the sliding material.

In particular, if the plug 40 and the sliding members 35 and 36 are made of the same material, there will be no local wear. Also, the air chamber 24
, 24, even if a repair hole 41 is opened in the sliding members 36, 36, the hole 41 is closed with a cap 42 to maintain airtightness.
In other words, it does not impair the effect of increasing buoyancy.

Note that this invention is not limited to fishing boats for collecting kelp, but can also be applied to general fishing boats and other motor boats.

The present invention described in detail above forms a through hole in the deck surface of the air chamber that is airtightly closed by a closing body and can be opened and closed. Even if it is fixed to the bottom of the ship with bolts and nuts, the bolts and nuts can be attached and removed through the through holes, so the sliding member can be attached to the bottom of the ship in a replaceable manner.

Therefore, the sliding material which is severely worn out can be easily replaced.
Further, since the through hole is usually hermetically closed with a closing body, the buoyancy increasing function inherent to the air chamber is not impaired.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a fishing boat for collecting konfu, Fig. 2 is a top view thereof, Fig. 3 is a cross-sectional view of the bow part, and Fig. 4 is Fig. 2. FIG. 5 is an enlarged cross-sectional view of the section ■ in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line ■--■ in FIG. 2. 1...hull, 24, 24... air chamber,
36...Sliding material, 37...Bolt, 38...
...Nut, 40...Plug, 41...
Repair hole (through hole), 42... Cap (closing body), 47...
...Packing material.

Claims (1)

[Claims] 1. In a small ship where a sliding material for beaching is attached to the bottom of the hull made of fiber-reinforced plastic and an air chamber is formed in the hull above this sliding material, a through hole is formed in the deck surface of the air chamber. A small boat made of fiber-reinforced plastic, characterized in that the through hole is airtightly and openably closed with a closing body.