JPS58157481A - 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 tests, motion/self-propulsion tests, decompression/circulation tests, water/sea/resistance self-propulsion tests, and tests for special vessels. A model ship of suitable construction 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. It is then cured and molded into the desired model ship. The inner mold 2 includes rib members 21 made of laminated wood formed in a predetermined shape in the long side direction and arranged at predetermined intervals.
1 is laminated on an inner mold frame board 231 made of water-resistant laminated wood, which is reinforced with reinforcing small square timbers 22 such as pine, and the outer mold 3 is also reinforced with rib materials 31 and reinforced in accordance with this. The small square material 32 and the outer frame plate 33 are combined to form an integrated mold. 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 ship to be molded, and the inner mold frame plate 23 and the outer mold Frame board 3
3, 5 ft of vinyl material is pasted on the inner surface of the mold, the above-mentioned paraffin material 6 is injected and hardened, and after die cutting, the material is placed in a predetermined water tank (not shown) to maintain a constant density of the material, and then a predetermined mechanical finish is applied. This completes the paraffin model ship 1.

However, the paraffin ship 1 has problems in terms of cost and workability because the structural and material VC requires formwork for both the inside and outside of the inner mold 2 and the outer mold 3, and a water tank is required during manufacturing. Since the paraffin material 6 is used, cavities and cracks are likely to occur in the model, and paraffin 6 as the base material
This model requires melting equipment, is highly deformed by heat, cannot be stored for long periods or divided into parts, and has disadvantages such as poor dimensional accuracy, transportability, and ease of attaching accessory parts. It's a trench.
It is customary for model ships to have a surface paint finish in consideration of photography, etc., but in the case of the paraffin ship 1, it is difficult to mark the surface of the paraffin 6, and a new finish is required. There were also problems such as poor photographic results as it was impossible to do so.

FIG. 2 is a schematic sectional view showing the so-called ship manufacturing means. In manufacturing the ship 7, first, a plurality of base materials 71 made of Himekomatsu wood are cut, and after passing through a predetermined cutting process with an automatic planer, The base materials 71 are adhesively bonded to each other with adhesive, nails, etc., and the reinforcing material 72 is solidified, and then the gauge is adjusted with a hand planer to form a predetermined shape.The surface is made smooth with a paper finish, and the outer surface is The fabric is covered and then colored and finished.

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 difficult, 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 (q), and since wood is used as a base material, waterproofing and water-resistance work is required, and there are also problems in that the paint is not coated or is defective.

Furthermore, among the water tank tests mentioned above, especially in the water sea/resistance self-propulsion test, since the model ship is sailed in ice water, if the finished surface of the outer surface of the model ship is made of soft and brittle material, the finished surface may be damaged once. There is a problem that the ship itself is damaged or partially destroyed during the test, making it impossible to use it for other purposes.Also, during the seagoing test, a considerable amount of stress is applied to the ship's hull, so the ship itself does not meet the specified requirements. However, it was difficult for Harafin Ship 1 and Main Ship 7 to meet such requirements.

The present invention solves the above-mentioned drawbacks of conventional model ships, and provides a model ship that is superior in terms of structure and materials, has extremely good workability in terms of coating, and is suitable mainly for low-temperature water tank tests. The purpose of this article is to provide a model ship in which a synthetic resin material is pasted or applied to the outer surface of the frame material, sprayed, and cured. A curved laminated timber, a first synthetic resin layer coated or sprayed on the inner and outer surfaces of the laminated timber and cured, and a second synthetic resin layer coated, sprayed or pasted on the outer surface of the first synthetic resin layer on the outside side. , a model ship having a hull comprising a third synthetic resin layer coated or sprayed on the outer surface of the second synthetic resin layer and cured, and a finishing layer formed on the outer surface of the third synthetic resin layer.

Hereinafter, 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 has a frame material 9 as a structural stiffness frame consisting of rib members 91 which are formed by processing a face plate made of water-resistant laminated wood, and small square timbers 92 which are also made of laminated wood.
, rib members 91 are arranged at predetermined intervals in the long side direction of the hull, and small square members 9 are arranged flush with the outer surface of the rib members 91.
It is made by fixing multiple pieces of 2.

The outer surface of the frame member 9 is provided with a r
A curved surface laminated material 10 that can be formed into an L-shaped cross section is fixed. The laminated timber for curved surfaces 10 has a thinner core material than normal laminated timber, and the surface material on both sides of the core material is made thick using high-quality materials, so that 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 putty model block TMCT-105 (trade name) manufactured by Mikata Petrochemical Industry (2). This formulation uses an epoxy resin (bisphenol A type), a coloring pigment, and an inorganic filler as the main agent, and a curing agent, a modified fatty acid polyamine, and a thinner (a mixture of ethyl acetate and toluene) as the main agent. It is a liquid product made by mixing curing agents at a mixing ratio (by weight) of 100:40 to 5o, and is applied or sprayed onto the inner and outer surfaces of the curved laminated lumber 1° and cured.

In addition, the surface of the curved laminated timber 1o is designed to improve the impact strength, bending strength, etc. of the hull section 14, and also has the above-mentioned first layer on the outer surface side.
In order to improve the adhesion between the synthetic resin layer 11 and the curved laminated timber 10, a metal lath material such as wire mesh, glass cloth, polyethylene fibers (
Attach 18t of reinforcing material such as Bonfix (trade name).

On the outer surface of the first synthetic resin layer 11 on the outside side, a second synthetic resin layer 12 is applied, sprayed, or pasted.

The second synthetic resin layer is made of an epoxy resin compound of Model Block TMMB-107P (trade name) manufactured by Mikata Petrochemical Industry (2). The formulation contains an epoxy resin (
bisphenol A type), colored pigments, inorganic fillers (
A polyamide amine, an inorganic filler (glass balloon) and other specified inorganic fillers are used as a hardening agent, and a mixing ratio (by weight) of the main agent and hardening agent is 100: The mixture is mixed at about 80% and then formed into a block shape of a predetermined size or a putty shape of a predetermined thickness.

Therefore, when forming the second synthetic resin layer 12, in the case of a block shape, each unit block (not shown) has a certain size and shape according to the shape of the hull 14 to be pasted. It can be easily attached by cutting it into pieces and sticking it together with an appropriate adhesive. If it is in the form of a crumbled or putty, it can be pasted and cured, then cut into a predetermined size and shape.

Further, on the outer surface of the second synthetic resin layer 12, a third synthetic resin layer 17 and a finishing layer 13 are formed. It consists of an epoxy resin compound of Model Block CT-104 (trade name) manufactured by Kogyo ■. The resin compound 1 has a function as a coating agent and is a two-part type consisting of a main agent and a curing agent, and is a finishing layer formed on the outer surface of the third synthetic resin layer 17 made of the resin compound. No. 13 coats the entire ship to impart surface strength and hardness particularly suitable for water and sea tests.

In addition, the bow part 15 at the tip has a rib lA as shown in FIG.
'91 A foam material made of urethane resin is attached to the outside in a predetermined shape. Further, the stern section 16 at the rear end also has the same cross-sectional configuration VC as the bow section 15, and the bow section 15
Also on the upper surface of the stern section 16, small square members 92 as the frame members 9 are extended and attached to ensure integrity.

Note that the first synthetic resin layer 11, the third synthetic resin layer 17, and the finishing layer 13 made of the above-mentioned epoxy resin compound are
The synthetic resin layer 11 is in the form of a two-component surf ace, and the main resin and hardening agent are mixed at the time of manufacturing (stirring, applying to the target structure using a trowel, and curing). The third synthetic resin layer 17 and the finishing layer 13 are different in that they are hardened and formed into a surfacer shape in advance.

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

In addition, the cured product is very light and easy to handle, and the cured product is homogeneous and has no directionality, so machining,
It has good machinability when processed by hand, and has the advantage of being able to be cut freely with woodworking tools such as chisels, planes, saws, files, etc., and machinability decreases even with long F\j 1iil machining 1-. There's nothing to do.

When finished, it can be sanded and painted if necessary. In addition, in the case of a block shape, its standard potential size is 500x200x5 (1+s+ order).

Next, for reference, typical properties of the block-shaped and putty-shaped epoxy resin compositions are shown in Table 1.

In the present invention constructed as described above in Table 1, since synthetic resin is used for the hull, there is no directionality of the material, and a wide variety of arbitrary shapes are possible.Also, adhesion is easy, and finishing is easy. Good workability such as processing. 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.

In addition, the surface material is dense, so from the perspective of painting work,
It requires fewer painting steps, has good water resistance, good adhesion of paint, easy marking work, and looks good in photographs. Furthermore, the entire outer surface is coated with a third synthetic resin layer made of an epoxy resin compound and a finishing layer.
In particular, it has the surface strength and surface hardness required for water and sea tests.
It can sufficiently withstand repeated tests and exhibits various useful effects, such as no change in appearance.

[Brief explanation of drawings]

Fig. 1m 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 show an embodiment of the present invention. ,
Figure 3 is a schematic vertical cross-sectional view of the model ship, and Figures 4 to 4 (9) are cross-sectional views taken along lines 8-1, BB-B, CC-C, and D-D in Figure 3, respectively. , FIG. 5 is a sectional view of main parts showing the structure of the hull section. 8. Model ship, 9. Frame material, 1-II1wI laminated wood, 11. First synthetic resin layer, 12. Second synthetic resin layer, 13. Finishing layer, 14. Ship side. , 17... Third synthetic resin 1-118... Reinforcement layer. Patent applicant Igarashi Industries Co., Ltd.

Claims (1)

[Scope of Claims] +11 A model ship in which a synthetic resin material is pasted or coated on the outer surface of a frame material, sprayed, and cured, which includes the above-mentioned frame material and a curved laminated timber attached to the outer surface of the frame material. , a first synthetic resin layer coated or sprayed on the inner and outer surfaces of the laminated wood and cured; a second synthetic resin layer coated or sprayed on the outer surface of the first synthetic resin layer on the outer side, cured or stuck; A model ship characterized by having a hull section comprising a third synthetic resin layer coated or sprayed on the outer surface of the second synthetic resin layer and cured, and a finishing layer formed on the outer surface of the third synthetic resin layer. (2) The first synthetic resin layer is 1. A two-component type consisting of a main ingredient consisting of an epoxy resin, a colored pigment, and an inorganic filler, and a curing agent consisting of a modified fatty acid polyamine and a thinner.
The model ship according to claim 1, which is obtained by applying or spraying and curing a putty-like epoxy resin compound. (3) The second synthetic resin layer is prepared by mixing a main ingredient consisting of an epoxy resin, a coloring pigment, an inorganic and an organic filler, and a hardening agent consisting of a polyamide amine and an inorganic filler in advance in the form of a gel coat, a putty, or a surfactant. The model ship according to claim 1, which is made of an epoxy resin compound formed into acer shapes or block shapes. (4) The model ship according to claim 1, wherein the third synthetic resin layer and the finishing layer are made of epoxy resin.