JPS6034555Y2 - boat - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a new boat.

Recently, boats made of synthetic resin or synthetic resin foam have been developed to replace wooden boats.

Synthetic resin foam is suitable as a material for boats because it is lightweight and has strong buoyancy, but it has low strength, especially bending strength, and is easily damaged.

If the foaming ratio is lowered in order to increase the strength, the lightweight feature will be lost and the buoyancy will become weaker, which is not preferable.

Further, even if the synthetic resin reinforcing material is partially reinforced, the entire structure cannot be made strong against impact.

As a result of various studies, the inventor of the present invention has discovered that by coating the entire surface of a boat body made of thermoplastic resin foam with glass fiber-reinforced synthetic resin, a boat with extremely high impact resistance can be made.

However, it has been found that boats made of thermoplastic resin foam are extremely lightweight and have strong buoyancy, so there is a high risk of capsizing due to slight transverse waves or loss of balance.

In order to prevent overturning, placing a weight at the bottom will improve the problem to some extent, but the lightweight feature will be lost and it cannot be said to be reliable in preventing overturning.

As a result of various experiments, the inventor of the present invention found that capsizing can be prevented and a stable boat can be made by attaching a float made of thermoplastic resin foam with a hollow upper part to the outside of the side wall of the boat. This led to the completion of this invention.

In this invention, the boat body is molded from thermoplastic resin foam, its entire surface is coated with glass fiber-reinforced synthetic resin, and a cavity is provided in the upper part made of thermoplastic resin foam on the outside of the side wall of the boat. The gist of the present invention is a boat characterized by having a float detachably attached thereto.

The thermoplastic resin foam constituting the boat body of the present invention is preferably a foam of polystyrene or a styrene copolymer, but it may also be a foam of other thermoplastic resins or mixed resins.

In particular, a foam obtained by suspending polyethylene particles in styrene monomer and foaming them into copolymer particles (polystyrene content: 30-7%) has appropriate rigidity and flexibility. Since it is strong and resistant to breakage, it is the most suitable material for the main body of the boat of the present invention.

The glass fiber-reinforced synthetic resin that covers the entire surface of the boat body is a mixture of polyester resin, epoxy resin, phenol resin, etc. with glass fiber, and is lightweight and has extremely high compressive strength and tensile strength.

The thickness of the glass fiber-reinforced synthetic resin layer can be increased by repeating the coating as needed, but the glass fiber-reinforced synthetic resin layer has good strength, impact resistance, and durability. There is no need to make it too thick,
In general, the thickness of Kyodan or W Houma is sufficient.

When the thermoplastic resin foam is a polystyrene foam, when coating the glass fiber reinforced synthetic resin, the polystyrene foam is coated with a solvent such as a styrene monomer contained in the prepolymer of the glass fiber reinforced synthetic resin. There is a risk of partial dissolution or swelling, but in this case, cover the glass fiber-reinforced synthetic resin with a polyolefin resin film such as polyethylene, polypropylene, or olivetagene, or a solvent-resistant film such as nylon film. For example, it not only prevents the above-mentioned polystyrene foam from dissolving, but also prevents seawater, floating oil, etc. from directly penetrating into the foam even if cracks occur in the glass fiber reinforced synthetic resin layer due to strong impact. , Ma□ta,
Therefore, it also has the effect of making repairs easier.

In addition, in the case of a foam made of copolymer particles made by suspending polyethylene particles in styrene monomer and polymerizing them, it is possible to use a foam made of unsaturated polyester resin, which is a typical example of glass fiber-reinforced synthetic resin that is later coated. Since it hardly dissolves or swells in the styrene monomer contained in the polymer and has good adhesion to the surface, it is not necessary to coat the surface of the foam with a solvent-resistant film.

It is desirable that a synthetic resin mesh or wire mesh be interposed between the thermoplastic resin foam and the glass fiber reinforced synthetic resin layer.

This is useful for self-defense because even if the boat collides with a rock or is damaged by a strong impact, the boat itself will not be scattered, and since it is connected with a net, the fragments will not be scattered, and it has buoyancy. extremely useful.

Examples of the synthetic resin net include nets made of polyethylene, polypropylene, nylon, and the like.

A float made of thermoplastic resin foam and having a hollow upper part is removably attached to the outside of the side wall of the boat of the present invention.

The boat body of the present invention is made of thermoplastic resin foam and is lightweight, so a float is required for balance.

The installation of the float makes it extremely stable against sideways shaking, and there is no risk of it capsizing even when subjected to strong horizontal waves.

The float may have any shape, but a cylindrical shape with spherical ends is generally preferred, and a float made of polystyrene or polyethylene foam is preferred because it is lightweight and has strong buoyancy.

It is desirable that the entire circumference of the float is coated with glass fiber reinforced synthetic resin in order to improve strength, durability, etc.

Also, since a box-shaped cavity is provided at the top of the float,
By using this cavity as a box for storing fishing accessories, fishing bait, etc., the boat is extremely suitable for fishing.

The float may be attached to the boat body, but it may also be attached to the end of a seat plate suspended across the side wall of the boat.

Next, the boat of the present invention will be explained with reference to the drawings.

As shown in FIG. 1, the material constituting the boat body 1 is a plate-shaped thermoplastic resin foam 2 whose both sides are covered with a polyethylene film 3 and a polyethylene net 4, and whose outer surface is covered with a glass fiber reinforced synthetic resin layer. 5. is coated with multiple layers of paint.

The thermoplastic resin foam 2 is a resin foam made by copolymerizing polyethylene and polystyrene, and is strong and resistant to breakage.

Figure 2 is a plan view of the boat of the present invention, and shows the boat body 1.
The bottom plate 6, side wall 7, shaft tip 8 and 119 are integrally molded.

10 is a reinforcing plate attached to the shaft tip 8 and 1119.

A seat plate 11 is suspended from the left and right side walls 7 by fitting into their upper ends.

The seat plate 11 is made of metal, wood, synthetic resin, or a combination thereof, and a float 12 is detachably attached to an end that hangs down to the outside of the side wall 7 of the boat.

The float 12 is formed by coating the outer surface of a polystyrene foam 13 with a polyethylene film 14, and coating it with a glass fiber-reinforced synthetic resin layer 15, and has a cylindrical shape with both ends spherical. It has a shape, and a box-shaped cavity 16 is provided in the upper part.

20 is a lid that can be opened and closed.

The float 12 is installed by inserting a locking tool 18 attached to the side surface of the float 12 into a key-shaped insertion hole 17 provided at the end of the seat plate 11 hanging outside the side wall of the boat.

Reference numeral 19 denotes an oar support, which is attached to the seat plate 11 suspended from the upper end of the side wall 7.

The boat of the present invention has the above-mentioned structure, is extremely lightweight as it is molded from thermoplastic resin foam, and is easy to carry and transport, and its entire surface is coated with glass fiber reinforced synthetic resin. The boat is strong against shock, and has floats removably attached to the outside of the boat's side walls, making it an extremely stable boat.

Furthermore, the seat plate is suspended across both side walls of the boat, making the side wall of the boat extremely stable, and advantageously allows floats to be attached to the ends of the seat plate depending outside the side wall.

Note that the float is not limited to the seat plate, and may be attached directly to the side wall of the boat.

The float is not limited to the device shown in the drawings, but may be fastened using a bold nut, for example.

Since the boat of the present invention has a box-shaped cavity and a lid in the float, fishing bait and other small items can be stored therein, so it is particularly suitable as a fishing boat.

[Brief explanation of drawings]

Figure 1 is a partially enlarged sectional view of the material constituting the boat body of the present invention, Figure 2 is a plan view of the boat of the present invention, Figure 3 is a sectional view taken along the line A-A in Figure 2, and Figure 4 is Cross-sectional view of the float, No. 5
The figure is a front view of the float attachment site. The main symbols in the drawings are as follows. 1...Boat body, 2...Thermoplastic resin foam, 3...Polyethylene film, 4...
...Polyethylene net, 5...Glass fiber reinforced synthetic resin layer, 6...Bottom plate, 7...
・Side wall, 8... Axis tip, 9... Fin, 10
...Reinforcement plate, 11... Seat board, 12.
... float, 13 ... polystyrene foam, 14 ... polyethylene film, 15 ...
...Glass fiber reinforced synthetic resin layer, 16...
- Cavity, 17... Fitting hole, 18... Locking tool, 19... Oar support tool.

Claims (1)

[Claims for Utility Model Registration] (1) Molding the boat body using thermoplastic resin foam;
The entire surface of the boat is coated with glass fiber-reinforced synthetic resin, and a float made of thermoplastic resin foam and having a cavity with a lid at the top is removably attached to the outside of the side wall of the boat. boat. :(2) Claim 1 for registration of a utility model consisting of a boat body made of thermoplastic resin foam coated with a solvent-resistant film, and the entire surface of the boat body coated with glass fiber reinforced synthetic resin. Boat as described. (3) Claims for Utility Model Registration: A boat body made of thermoplastic resin foam is covered with synthetic resin mesh or wire mesh, and the entire surface of the boat body is covered with glass fiber reinforced synthetic resin. The boat described in item 1.