JPH0644471Y2 - Egg type container made of inorganic material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to an egg-shaped container made of a hydration-curable inorganic material for storing a toy using shape memory plastic as a member.

“Prior art and its problems” In recent years, it has been known that a toy made of shape-memory plastic that returns to its original shape when heated, and many people have a tendency to change its shape easily and unexpectedly. Is pleased with. Some of these toys are in a state of being rolled up into small pieces at room temperature and become larger when heated, which is especially preferred because it gives the impression that living creatures grow back and grow. There is.

By the way, some creatures are born by breaking eggs, and it is not only necessary for the growth of infants to know how they are born, but also for adults to ease their minds. However, it is difficult to see the state of birth from such eggs directly because there are few opportunities to come into contact with nature, especially in the cities. And
At present, no container is available that mimics the state of a natural egg, and that mimics the fact that a living creature is born by actually breaking an egg.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an egg-shaped container for storing a toy that is close to the state of a natural egg, and that is actually born by breaking an egg. Especially.

[Means for Solving the Problem] The egg-shaped container made of an inorganic material of the present invention is an egg-shaped container for storing a toy that uses shape memory plastic as a member, which returns to its original shape when heat is applied. The means for solving the above problems is that the toy is made of a hydration hardening type inorganic material that is pressed by the toy and cracks when the toy returns to its original shape by being heated.

"Action" This invention is that the toy contained in the egg-shaped container is warmed as a whole so that the temperature of the toy returns to its original shape or higher, and the apparent expansion of the toy breaks the egg-shaped container.
A toy imitating the shape of an animal appears as if it were born from within the container, and the container is made of a hydration hardening type inorganic material, so that the real shell looks like cracked.

[Example] Hereinafter, the present invention will be described in detail.

1 and 2 are views showing an embodiment of the egg-shaped container made of an inorganic material of the present invention. FIG. 2 is a diagram showing a state after heating. In this figure, reference numeral 1 is a toy imitating the shape of a dinosaur. Further, FIG. 1 is a diagram showing a state at room temperature before use, in which reference numeral 2 is an egg-shaped container simulating the shape of an egg shell.

The toy 1 uses shape memory plastic that returns to its original shape when heat is applied as a member, and is in a state of being sufficiently small and rounded so that it can be housed in an egg-shaped container 2 at room temperature as described later. In addition, when heated to a temperature equal to or higher than a predetermined temperature, the shape becomes the original shape and becomes larger than the egg-shaped container 2. Here, the shape memory plastic is a substance that changes into a resin at room temperature (normal temperature) and a rubber at a temperature slightly above room temperature, and examples thereof include a block copolymer of polystyrene and crystallized polybutadiene, and polynorbornene. To be

The egg-shaped container 2 is formed by joining an upper half shell 2a and a lower half shell 2b as shown in FIG. 1, and is made of a hydration-curable inorganic material. Here, as the hydration-curable inorganic material, for example, an inorganic material that exhibits strength without undergoing a firing process, that is, a hydration-curable white cement-based inorganic material that cures by reaction with water (hydration reaction) (Portland cement type inorganic material), hydration hardening type calcium sulfate type inorganic material (gypsum type inorganic material), hydration hardening type calcium phosphate type inorganic material (tricalcium phosphate and tetracalcium phosphate type inorganic material), etc. Used alone or in combination. Although the thickness of the egg-shaped container 2 varies depending on the strength of the material used, it must be thin enough to crack when the toy 1 returns to its original shape due to heating, and is resistant to slight impacts during normal operation. Must be thick enough to withstand. From this point of view, when the egg-shaped container 2 is made of the above material, the thickness of the egg-shaped container 2 is preferably about 0.2 to 0.3 mm, but the thickness is not limited to this.

In order to manufacture an egg-shaped toy having such a configuration, first, the toy 1 in a rolled state, which has a shape imitating the shape of a dinosaur when heated and can be housed in the egg-shaped container 2 at room temperature, is formed. Separately from this, the upper half shell 2a and the lower half shell 2b are manufactured by press molding or the like.

Next, an adhesive is applied to the joint edges of the upper half shell 2a and the lower half shell 2b with a brush or the like, and the toy 1 in a rolled state is put in the lower half shell 2b, and then the upper half shell 2a and the lower half shell 2b.
2b is bonded between the parts coated with the adhesive to cure the adhesive.

Next, in order to eliminate the gap between the joints and to hide the seam formed by the joints, a material having the same composition as the shell-forming material is applied to the joints with a paintbrush, etc. For example, the unevenness of the surface is scraped off to make the joint smooth.

In the egg-shaped toy thus obtained, the appearance of the toy 1 is increased by warming the entire toy 1 housed in the egg-shaped container 2 to a temperature at which the toy 1 returns to its original shape or higher. The egg-shaped container 2 is broken by the expansion, and the dinosaur (toy 1) appears from within the container 2 as if it were born.
Here, in order to actually heat the egg-shaped container 2 to a temperature at which it breaks, the inside of the container 2 is partially hollow and the thermal conductivity is inferior. ~ 50%
It is necessary to heat to a high temperature, for example toy 1
In the case of a plastic that exhibits shape memory characteristics at 40 ° C, a method of pouring in hot water at about 50 to 60 ° C is suitable.

In the above embodiment, the original shape of the toy 1 is shaped to imitate the shape of a dinosaur. However, the shape of the toy 1 is not limited to this. It may be molded into a model imitating the shape of the above.

[Specific example] 30% by weight of water was added to a commercially available precision molding plaster [manufactured by Yoshino Gypsum Co., Ltd .; Histone HLP] and kneaded, and this mixture was used as a half-shell female mold with an opening diameter of 30 mm. Pour into the mold, adjust the thickness to 0.2 mm from the top, press the male mold, leave it in the room at room temperature for 2 hours, and then remove it from the egg mold made of calcium sulfate (gypsum). A half shell was obtained, and a lower half shell was obtained in the same manner.

Separately from this, by utilizing Nosolex (trade name) manufactured by Nippon Zeon Co., Ltd. as a member, the original state is a shape simulating a dinosaur as shown in FIG.
Moreover, a toy in a rolled state at room temperature was molded.

Next, the upper half shell and the lower half shell were temporarily fixed and joined using a commercially available instant adhesive, and then the material for forming the half shell was applied with a brush along the joining line, and left at room temperature at room temperature.

Then, the surface of the joint was smoothed with a commercially available sandpaper of No. 280 to smooth the surface, and the egg-shaped toy shown in FIG. 1 was obtained.

When the egg-shaped toy obtained was poured into hot water at about 60 ° C, the egg-shaped container cracked after about 10 minutes, and after about 10 seconds the container completely cracked, and as shown in Fig. 2, the dinosaur was removed from the inside. A toy that imitated was appeared.

[Effect of the Invention] As described above, the egg-shaped container made of an inorganic material of the present invention returns to its original shape when heat is applied. A toy using shape memory plastic as a member is housed in the egg-shaped container, and Since the original shape of the toy imitates the shape of an animal, the appearance of the toy is improved by heating the entire toy contained in the egg-shaped container to a temperature above the original shape. Due to the upward expansion, the toy is pressed by the toy to break the egg-shaped container, and a toy imitating a form of an animal appears as if it were born from the container, and the container is a hydration hardening type inorganic material. The real shell looks like a crack. Therefore, the appearance is close to that of a natural egg, and since it seems that animals etc. actually break the egg, it can be used not only for unexpectedness but also for education of infants. .

[Brief description of drawings]

1 and 2 are views showing an embodiment of an egg container made of an inorganic material according to the present invention. FIG. 1 shows an appearance before heating, and FIG. 2 shows an egg by heating. It is a figure which shows the state in which a toy appears from the inside of a mold container when it is broken. 1 ... toy, 2 ... egg-shaped container.

Claims (1)

[Scope of utility model registration request] 1. An egg-shaped container that stores a toy that uses shape memory plastic as a member when heat is applied to the egg-shaped container. The egg-shaped container returns to its original shape when the toy is heated. An egg-shaped container made of an inorganic material, which is made of a hydration-curable inorganic material that is pressed by the toy and is cracked in the process.