JP2581733Y2 - Model airplane wing sheet material - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material for a wing in a model airplane for teaching materials and toys.

[0002]

2. Description of the Related Art Conventionally, model airplanes have been used for play or as teaching materials, and can be enjoyed at low cost by children and adults. However, because the wings of this model airplane are pasted with paper, they are very fragile, can be damaged in a few flights, and are particularly vulnerable to water and rain.
Flying on the water was absolutely a must.

[0003]

[Problems to be Solved by the Invention] As described above, model airplanes are not popular anymore because their wings are easily torn even if the angle is made. The present invention has been made in order to solve such problems, and has developed a sheet material for a wing having strength, water resistance, and adhesive workability. It is intended to be able to enjoy the flight inside and on the water.

[0004]

As a result of various studies to achieve the above object, thin paper for gluing is attached to one side of a film having high strength and water resistance such as a polyester film. It is very suitable for wings if a heat-sealable resin coating layer is provided on the other side so that the adhesive processing can be performed even when the thin paper surface is overlapped with the other surface or when the other surfaces are overlapped. They found it to be a sheet material.

That is, according to the present invention, a sheet material for a wing of a model airplane is characterized in that thin paper is adhered to one side of a film and an inaccessibility layer is provided on the other side of the film.
It is said that if the adhesive layer is a heat-sealing resin coat layer , it is more preferable .

The present invention will be described in detail with reference to the drawings. FIG. 1 is an enlarged schematic sectional view of one embodiment of the sheet material of the present invention. As shown in this figure, in the present invention, a thin paper (2) is attached to one side of a film (1), while a contact layer (3) is provided on the other side of the film (1). is there.

In the embodiment shown in FIG. 1, this adhesive layer (3) is a heat-sealing resin coat layer made of a heat-fusible resin, and is coated with, for example, a mixed resin of a polyester resin and a vinyl chloride resin. It is.

[0008] The film (1) in the present invention is intended to impart strength and water resistance to the sheet material for the wing, and the thickness is preferably 4 to 15 µm. If the thickness exceeds this, it lacks lightness.

As the film (1), a polyester film and an aurora film (a film which emits an aurora-like or rainbow-like phantom glittering light sold by Marl, USA) can be preferably used, and other polypropylene films, A vinyl chloride film, a styrene film or the like can be used, but a polyester film is the most desirable in view of strength, functionality, unit price and the like.

The thin paper (2) according to the present invention enables this wing sheet material to be attached to a bamboo string with a glue, and its thickness is thin, usually 10 to 20.
A paper material having a basis weight of g / m ² is preferable. If it is too thin, it is difficult to bond the film to the film (1), and if it is too thick, there is a problem in lightness.

The lamination of the thin paper (2) and the film (1) may be performed by lamination using, for example, a dry lamination made of polyurethane resin or the like.

The adhesive layer (3) in the present invention is used for attaching the sheet material for wings to a model airplane, such as a bamboo basket or a thin leaf.
Adhesive layer as well as bonding to paper (2)
(3) This layer is provided so that bonding can be performed even when bonding one another.

Since the rice adhesive layer (3) is a coat layer made of a heat-fusible resin as described above, when bonding the bamboo or thin paper (2) surface or the coat layers together, a small flame is applied. It is necessary to apply pressure with simple heating such as approaching .

[0014]

According to the present invention, the base material of the sheet material for the wing is a film (1) having high water resistance and strength, such as a polyester film. It is excellent.

Further, since the thin film (2) is bonded to one side of the film (1) and the adhesive layer (3) is also provided on the other side, the wing sheet material is bonded to the wing bamboo string. It is easy to attach and further attach these sheets together, so there is no inconvenience in assembling and finishing a model airplane.

Further, since the sheet material of the present invention is a paper material on one side, it can be subjected to coloring, printing, character printing, etc., and it is also possible to previously deposit aluminum on the film surface. Can be embossed. Therefore, it is possible to produce a model airplane having decorativeness and advertising properties that cannot be considered conventionally.

A prototype model airplane using the sheet material of the present invention was prototyped and subjected to a flight test. As a result, it was more stable than a conventional paper-made one. They could enjoy it, and even when it got completely wet, it dried in about three minutes in the summer and could fly many times.

[0018]

EXAMPLE 1 10 g of a polyurethane resin (manufactured by Takeda Pharmaceutical Co., Ltd.) as an adhesive was wet on one side of a 12 μm thick polyester film (manufactured by Toyobo Co., Ltd.) (solid content: 45%).
%) / ^M was applied at a ratio of ^2, was basis weight 14 g / ^{m 2} of grass of tissue paper (manufactured by Shirakawa Paper Co.) laminated by dry lamination.

Then, the other side of the film is coated with a solvent-type compounded resin composed of 60% of a polyester-based resin and 40% of a vinyl chloride-based resin at a solid content of 7 g / m ² and heat-sealing resin. A coating layer was provided to obtain a wing sheet material.

Example 2 Black thin tissue paper (product weight: 14 g / m ² , manufactured by Shirakawa Paper Co., Ltd.) having a basis weight of 14 g / m ² was dry-laminated on one surface of an aurora film having a thickness of 12 μm (manufactured by Marl USA) in the same manner as in Example 1. Stuck together. Next, a heat-sealing resin coat layer was provided in the same manner as in Example 1 to obtain a wing sheet material.

When prototype airplanes were manufactured using the wing sheet materials of Examples 1 and 2 above, none of the wings were broken under normal handling. I was able to fly. The work of attaching the sheet material for the wing to the model airplane was also easy, and there was no fear of failure.

[0022]

[Effects of the present invention] The effects of the present invention are as described in detail in the operation section, but are summarized as follows in a bulleted form. (A) The wing is not broken at all and the strength is very high. (B) It does not break even when wet with water and has excellent water resistance. (C) The workability at the time of sticking to a model airplane is good, and the bonding does not fail.

(D) Since various coloring, patterning, printing, embossing, vapor deposition, and the like can be applied to the wing sheet material, it is possible to impart unprecedented decorativeness and advertisement. As described above, the present invention has various excellent effects, and exhibits remarkable usefulness that a model airplane can be enjoyed by flying a model airplane for a long time and anywhere on the water.

[Brief description of the drawings]

FIG. 1 is an enlarged schematic longitudinal sectional view of one embodiment of a sheet material of the present invention.

[Explanation of symbols]

 (1) Film (2) Thin paper (3) Adhesive layer

Claims (2)

(57) [Scope of request for utility model registration] 1. A thin paper is stuck on one side of a film,
A sheet material for a wing of a model airplane, wherein an adhesive layer is provided on the other surface of the film. 2. The sheet material for a wing of a model airplane according to claim 1, wherein the adhesive layer is a heat-sealing resin coat layer.