JPH0242231B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to improvements in terrestrial globes.

[Prior art and its issues]

A conventional general globe has the structure shown in FIG. That is, a stand 31 attaches the globe body 30 to a globe body 30 on which various conditions of the earth's surface are drawn by drawing graticules on the surface of a hollow paper or metal sphere so that the globe body 30 can rotate around an axis passing through both poles, that is, the earth's axis. It is equipped with the following. This structure has the following problems. (1) The conditions at the North and South poles cannot be completely depicted because the stand axes are attached. (2) Although the North Pole is visible, the South Pole is difficult to see because it is below the globe body 30. (3) Since the globe body 30 is rotatably attached to the stand 31 in such a manner that it cannot be removed, it is inconvenient because it does not become small when it is not needed, when it is carried around, or even when it is being transported.

[Purpose of the invention]

Therefore, the purpose of the present invention is (1) to make it possible to almost completely depict various conditions at the north and south poles, and (2) to make it easier to see the south pole, which is the lower part of the globe, to facilitate learning. (3) When not needed or when being transported, the globe itself should be foldable to make it smaller, making it convenient to store, carry, and transport when not needed; (4) In the event of an emergency. (5) A globe that satisfies the following requirements: not only will it not be damaged even if it is dropped, it will not generate noise, it will be convenient for learning in school classrooms, and (5) it will be easy to manufacture and the manufacturing cost will be low. It is about providing.

[Structure of the invention]

The configuration of the present invention taken to achieve the above object is as follows. That is, the present invention is a hollow sphere formed by connecting a plurality of flexible sheets on which topographical maps are drawn,
A globe body that is foldable when deflated and elastic when inflated; and a mounting table that is separated from the globe body without being constrained by each other; is provided with an injection part, and the mounting table has a contact point that is equidistant from a vertical line passing through the center of the globe body when the globe body is placed thereon, and the corresponding contact point is provided with the injection part. This is a globe whose axis is tilted relative to the ecliptic plane when placed against the relevant contact point.

【Example】

The present invention will be explained in more detail based on embodiments shown in the drawings. FIG. 1 is a perspective view showing one embodiment. Reference numeral 1 is the globe body, which becomes an elastic sphere by expanding. Therefore, a soft synthetic resin film such as a vinyl chloride sheet is suitable as the material. When inflating the globe body 1, a gas such as air is usually blown into it. Globe body 1
The injection unit 10 is located at the south pole. The globe body 1 is placed on a mounting table 2 on which it is placed so that it does not roll. The mounting table 2 is usually an annular one as shown in FIGS. 1 and 4, but is not limited to this, and may be a thin plate with protrusions 21 protruding from both ends as shown in FIG. 2. Possible examples include a structure in which the shaped bodies 2a are crossed, and a structure in which thin rod bodies 2b are arranged in a crosswise manner as shown in FIG. 3, and a small ball 22 is attached to the top. Note that the mounting table 2 shown in FIG. 4 has notches 23 formed at both ends of the band.
By interlocking the notches 23, it becomes annular, and the surface of the band is connected to the advertising surface 2.
It can be set to 0. The diameter of the annular mounting table 2 shown in FIG. 1 and FIG.
0, that is, when placed together with the south pole, it is formed so that it can give an inclination of approximately 23.5 degrees, which is the inclination angle of the earth's axis with respect to the ecliptic plane. In addition, a thin plate-like object 2a with a protruding portion 21, a small ball 2
In the case of a mounting table 2 consisting of a thin rod body 2b equipped with 2, if the convex part 21 and the small ball 22 are placed with the injection part 10 of the globe body 1, that is, the south pole, the inclination angle of the earth's axis will be adjusted. It is formed so that it can provide an inclination of approximately 23.5 degrees. That is, when the globe main body 1 is placed at a required location on the mounting table 2 with the south pole aligned, it is possible to provide an inclination of approximately 23.5 degrees, which is the inclination angle of the earth's axis. It should be noted that the present invention is not limited to the illustrated embodiments, but can be modified in many ways within the scope of the claims.

【Effect of the invention】

As explained above, the present invention has the following effects by having the above configuration. (1) The globe body has an injection part located at the south pole, and the mounting table has a contact point that is equidistant from a vertical line passing through the center of the globe body when the globe body is placed on it. However, the corresponding contact point is located at a position where the earth's axis is tilted with respect to the ecliptic plane when the injection part is placed in contact with the contact point. For this reason, by placing the injection part in contact with the abutment point of the above-mentioned mounting table, the tilt of the earth's axis of the globe body with respect to the ecliptic plane can be easily set, and a sufficient educational effect can be obtained with a simple structure. can. (2) The globe body and the mounting table are separated without being constrained by each other. For this reason, the states of the North and South poles can be depicted almost completely, except for the injection areas. In addition, if the south pole drawn on the globe itself is reversed, it will be on the upper side, making it easier to see and not hinder learning. Furthermore, the globe body can be made smaller by deflating the air and folding it, and a ring-shaped mounting table is convenient for storing, carrying, and transporting the globe when it is not needed. (3) The globe is a hollow sphere made by connecting multiple flexible sheets, and it has elasticity when inflated, so it will not break even if dropped, and will not make noise, making it suitable for use in classrooms. It is convenient for learning. In addition, since it is a hollow sphere made by joining together multiple flexible sheets with topographical maps drawn on it, manufacturing costs are low, so if the name of a country changes, etc., a new globe can be manufactured and purchased immediately. and can always provide new information. (4) The earth is divided into a land hemisphere and a water hemisphere. Although this can be understood conceptually using a conventional terrestrial globe, it was not possible to understand it concretely. However, the globe body according to the present invention can be deflated to form a hemisphere like a hat.
For this reason, by literally dividing the earth into terrestrial hemispheres, it becomes possible to understand concretely visually, and the educational effect is extremely high. (5) It is not necessarily necessary to inflate it; for example, by deflating the globe and folding it into a boat shape, you can check the shortest course from one point on the earth to another. Although the structure is simple, the educational effect is extremely high.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment, FIGS. 2 to 4 are views of other embodiments of the mounting table, and FIG. 5 is a front view of a conventional globe. 1: Globe body, 2: Mounting table, 10: Injection part.

Claims (1)

[Scope of Claims] 1. A globe body which is a hollow sphere formed by joining together a plurality of flexible sheets on which topographical maps are drawn, and which is foldable when deflated and elastic when inflated. and; a mounting table that is separated from the globe main body without being restrained from each other; the globe main body is provided with an injection part at the pole of the south pole; When placed, the globe has a contact point that is equidistant from a vertical line passing through the center of the globe body, and the corresponding contact point is located on the ecliptic plane when the injection part is placed in contact with the corresponding contact point. A globe characterized by being located in a position where the tilt of the earth's axis is relative to the earth's axis. 2. The globe according to claim 1, wherein the mounting table is formed in an annular shape.