JPS58157480A - Model ship - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a model ship used for various water tank tests and the like.

Traditionally, when designing a structure in a ship construction plan, various tests are conducted using a model ship that has been formed to a predetermined reduced size, and the suitability of the structural design is confirmed based on the test results, or its shortcomings are identified. The usual method is to identify and clarify deficiencies and problems, make improvements, and reflect them in the actual ship design.

The above water tank tests include various tests such as resistance/self-propulsion test, movement/self-propulsion test, decompression/circulation test, ice sea/resistance self-propulsion test, special vessel test, etc., each meeting the test conditions. A model ship with a similar structure is used.

By the way, as a model ship generally used for the water tank test, there has conventionally been a model ship having a structure as shown in FIGS. 1 and 2.

FIG. 1 is a schematic cross-sectional view showing a means for manufacturing a so-called paraffin ship, that is, a model ship whose base material is made of paraffin. In manufacturing the paraffin ship 1, an inner mold 2 and an outer mold 3 are assembled, and a predetermined amount of paraffin 5 is injected into a predetermined gap 4 formed between the inner mold 2 and the outer mold 3. 6. The inner mold 2 has rib members 21 made of laminated wood formed in a predetermined shape in the long side direction and arranged at predetermined intervals. The inner end of the rib material 21 is reinforced with a small reinforcing material 22 such as pine.
The inner mold frame board 23 made of water-resistant laminated wood is not attached, and the rib material 31, the small square reinforcing material 32, and the outer mold frame board 33 are combined in the same way for the outer mold 3 to form an integrated mold. I am doing it. As shown in FIG. 1, the inner mold 2 and the outer mold 3 are arranged at a predetermined gap corresponding to the cross-sectional shape of the model 1 ship to be molded, and the inner mold frame plate 23 and the outer mold A vinyl material 6 is pasted on the inner surface of the form board 33, the paraffin material 5 is injected and hardened, and after the mold is cut out, the material is placed in a predetermined water tank (not shown) to keep the material density constant. Afterwards, a predetermined mechanical finish is applied to complete the paraffin model ship 1.

However, in terms of structure and materials, the paraffin ship 1 requires formwork for both the inside and outside of the inner mold 2 and the outer mold 3, and also requires a water tank during manufacturing, which poses problems in terms of cost and workability. Because of the use of oak and paraffin material 5, the model is prone to cavities and cracks, and equipment for melting the paraffin 5 as the base material is required, resulting in large deformation due to heat, making it difficult to store the model for long periods of time or to divide the model. However, it has disadvantages such as being impossible to use, and having poor dimensional accuracy, poor transportability, and poor attachment of accessory parts. Additionally, it is customary for model ships to have a surface painted finish in consideration of photography, etc., but for the paraffin ship l mentioned above,
It is difficult to mark the surface of the paraffin 5, and furthermore, it is impossible to apply a new finishing coat, resulting in problems such as poor photographic reproduction.

Next, FIG. 2 is a schematic cross-sectional view showing the means for manufacturing the main ship 7. In manufacturing the main ship 7, first, a plurality of base materials 71 made of Himekomatsu wood are cut, and then a predetermined cutting process is performed using an automatic planer. After that, the base materials 71 are adhesively bonded to each other using an adhesive, nails, etc., the reinforcing material 72 is solidified, and the gauge is adjusted with a hand planer to form a predetermined shape, and the surface is made smooth by paper finishing. The exterior is covered with fabric and then finished with a colored finish.

This ship 7 has a structural disadvantage in that the process from lamination to finishing takes a long time and there are many repair processes.

In addition, in terms of materials, there are many surface treatment steps, which makes workability poor, making it difficult to select materials, and making it impossible to restore materials or test them under reduced pressure. Since it is time-consuming, there are many painting steps, and since wood is used as the base material, waterproofing and water-resistance work is required, and there are other problems, such as poor paint adhesion.

This study solved the shortcomings of the conventional model ships mentioned above, and developed a rotten-type ship that is superior in structure and materials, has extremely good workability in terms of painting, and is suitable mainly for water tank tests. The purpose of the project is to provide a model ship in which a synthetic resin material is pasted or applied to the outer surface of the frame material and then sprayed and cured. the curved laminated wood, a first synthetic resin layer coated or sprayed on both the inner and outer surfaces of the laminated wood and cured; and a second synthetic resin layer coated or sprayed on the outer surface of the first resin layer on the outside and cured. and a partition formed on the outer surface of the second synthetic resin layer.

Below, preferred embodiments of the present invention will be described with reference to the drawings. .

3 to 5 show a first embodiment of the present invention, in which 8
is a model ship according to the present invention, which is mainly manufactured for water tank testing.

As shown in FIG. 3, the model ship 8 includes a rib material 91 formed by processing a face plate made of water-resistant laminated wood, and a frame material 9 as a structural strength frame made of small square timbers 92 also made of laminated wood.
The rib members 91t are arranged at predetermined intervals in the long side direction of the hull, and a plurality of small square members 92 are fixed flush with the outer surface of the rib members 91.

A curved surface laminated lumber lO that can be molded into a cross section that conforms to the external shape of the hull to be molded is fixed to the outer surface of the frame member 9. This laminated wood lO for curved surfaces has a thinner core material than normal laminated wood, and the surface material on both sides of the core material is made thick using high-quality materials, so it can be used for arbitrary purposes. It can be formed into a curved shape.

As shown in FIG. 5, the curved surface laminated material 10 has a first synthetic resin layer 11 formed on both its inner and outer surfaces. The first synthetic resin layer 11 is made of an epoxy resin compound of Noputate-like Model Block TMCT-105 (trade name) manufactured by Mikata Petrochemical Industry (2). This compound uses an epoxy resin (bisphenol A type), a color pigment, and an inorganic filler as a main ingredient, and a modified fatty acid polyamine and a thinner (a mixture of ethyl acetate and toluene) as a hardening agent. It is a two-component putty-like product mixed at a mixing ratio (by weight) of 100:40 to 50, and is applied or sprayed onto the inner and outer surfaces of the curved laminated timber 10 and hardened.

On the outer surface of the first synthetic resin layer 11 on the outside side, a second synthetic resin layer 1 is formed by applying or spraying a urethane resin paint and curing it.
2 is formed to improve the performance of a given cross section such as heat insulation performance.

Furthermore, the entire outer surface of the second synthetic resin layer 12 is finished with water-resistant vapor and colored in a predetermined finish color.
The curved laminated timber 1 (L, the first synthetic resin layer 11, the second synthetic resin layer 12, and the finishing layer 13 constitute the hull section 14 of the hull.) The 6th part 15 is a rib material 9 as shown in FIG.
A foam material 151 made of urethane resin is attached to the outside in a predetermined shape, and the first synthetic resin layer 11, second synthetic resin layer 12, and finishing layer 13 are formed on the outer surface of the foam material 151. In addition, the stern section 16 at the rear end has the same cross-sectional configuration as the bow section 15 described in "1", and the upper surfaces of the stern section 15 and the stern section 16 are also provided with small square timbers 92 as the frame members 9. It is extended and installed to ensure integrity.

Although not shown in this embodiment, the impact strength, bending strength, etc. of the hull section 14 having the above structure are improved, and the adhesion between the first synthetic resin layer 11 on the outer surface side and the curved laminated timber 10 is improved. For this purpose, a metal lath material such as wire mesh, glass cloth, or polyethylene fiber (trade name Bonfix) is applied to the surface of the curved laminated timber 10 before applying the first synthetic resin layer 11.
You can also keep it attached.

Next, FIG. 6 shows a second embodiment of the present invention. In this embodiment, the structure of the hull 14 includes coating or spraying the first synthetic resin layer on both the inner and outer surfaces of the curved laminated timber 10. The surface of the hardened first synthetic resin layer 11 on the outside is coated or sprayed with the above-mentioned urethane resin paint, and putty is applied as shown in the figure before the hardened second synthetic resin layer 12 and finishing layer 13 are provided. This embodiment differs from the first embodiment in that the third synthetic resin layer 17 in the shape of a shape or a block is fixed, and then the second synthetic resin layer 12El and the finishing layer 13 are formed.The other configurations are the same. be.

The third synthetic resin layer 17 is made of an epoxy resin compound of Model Block TMMB-107P (trade name) manufactured by Mikata Petrochemical Industry (2). The compound uses an epoxy resin (bisphenol A type), a coloring pigment, an inorganic filler (glass balloon), and an organic filler as the main ingredients, and polyamide amine, an inorganic filler (glass balloon), and others as a hardening agent. A predetermined inorganic filler is mixed with the base material and curing agent at a mixing ratio (%) of about 100-80, and is then formed into a predetermined block shape or putty shape with a predetermined thickness. , is a thing.

Therefore, when forming the third synthetic resin layer 17, in the case of a block shape, each unit block (not shown) is cut into a predetermined shape according to the shape of the ship's side 14 to which it is to be attached, and then glued as appropriate. It can be easily attached by adhesive bonding with adhesive.

In the case of a putty, it can be pasted and cured, then cut into a predetermined size and shape.

Note that the first synthetic resin layer 11 and the third synthetic resin layer 17 made of the above-mentioned epoxy resin compound are different from the first synthetic resin layer 1.
1 is a two-component gel coat type in which the base resin and curing agent are mixed together during production, stirred well, and applied to the desired molded product using a trowel and cured, whereas the 3rd synthetic resin mentioned above The difference is that the layer 17 is previously hardened and formed into a putty-like shape.

However, both have excellent dimensional stability after curing, with little dimensional change due to temperature changes, dryness, humidity, etc., and no warping, bending, etc.
There is no occurrence of cracks, etc.

In addition, the cured product is very light and easy to undulate.
Because it is a homogeneous and well-cured product with no directionality, it has good cutting workability whether machined or hand-processed.
It has the advantage of being able to be cut freely with woodworking tools such as planes, saws, files, etc., and the workability will not deteriorate even after long periods of processing. Additionally, when finishing, sandpapering and painting are possible if necessary. In the case of a block, the standard unit dimensions are approximately 500 x 200 x 50.

Table 1 In the present invention constructed as described above, since synthetic resin is used for the hull, there is no directionality of the material, and various arbitrary shapes are possible, and bonding is easy. Good workability such as finishing. In addition, unlike conventional paraffin ships, there is no need for shapes, and there is no need for the troublesome lamination work required for main ships. Furthermore, since the specific gravity of the constituent materials is low, it is possible to reduce the weight, and experiments under reduced pressure are also possible.

In addition, it is less deformed due to temperature differences than conventional products, has good storage stability, and is easy to divide the model and attach accessory parts because it is mainly made of resin.

It's a trench, the surface is dense, and from the perspective of the painting process,
It has a variety of useful effects such as fewer painting steps, good water resistance, good paint adhesion, easy marking work, and looks good in photos, making it suitable for aquarium tests of general structure types. It is something.

[Brief explanation of the drawing]

Fig. 1 is a conceptual diagram showing the manufacturing process of a conventional paraffin model ship, Fig. 2 is a conceptual diagram showing the manufacturing process of a conventional wooden model ship, and Figs. 3 to 5 are a first embodiment of the present invention. 3 is a schematic vertical cross-sectional view of the model ship, and FIGS. 4(A) to 4(2) are lines AA, BB, and C- in FIG. 3, respectively.
5 is a sectional view of the ship's belly, and FIG. 6 is a sectional view showing a second embodiment of the present invention. 8... Model ship, 9... Frame material, 10... Curved laminated wood, 11... First synthetic resin layer, 12... Second synthetic resin layer, 13... Finishing layer, 14...・The belly of the ship, 15...
Bow section, 16... Stern section. Patent applicant: Igarashi Kogyo Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 0) A model ship in which a synthetic resin material is pasted or applied to the outer surface of the frame material, sprayed and cured, the above-mentioned frame material and curved laminated wood attached to the outer surface of the frame material. Then, apply or spray on both the inside and outside of the laminated wood. Consists of a hardened first synthetic resin layer, a second synthetic resin layer coated or sprayed on the outer surface of the first synthetic resin layer on the outside and hardened, and a finishing layer formed on the outer surface of the second synthetic resin layer. A model ship characterized by having a hull. (2) The model ship according to claim 1, wherein the frame material is composed of a combination of small square timbers made of laminated wood and a face plate. (3) The first synthetic resin layer is coated with a two-part, putty-like epoxy resin compound that is a mixture of a main ingredient consisting of an epoxy resin, a coloring pigment, and an inorganic filler, and a hardening agent consisting of a modified fatty acid polyamine and a thinner. Alternatively, the model ship according to claim 1, which is obtained by spraying and curing. +41 1. The model ship according to claim 1, wherein the glycoside 2 synthetic resin layer is formed by applying or spraying a urethane resin paint and curing it. (5) The model ship according to claim 1, wherein the finishing layer has a surface finished with waterproof paper and colored in a predetermined color.