JP3084096U - A globe that eliminates the rotation axis and enables free rotation - Google Patents

Abstract

(57) [Summary] [Purpose] A globe capable of directly looking at the Southern Hemisphere and Antarctica from the side. [Constitution] A stand for holding a dish-shaped sphere is provided on a stand that holds the entire globe, and several ball bearings are arranged on the tray to hold the sphere and enable free rotation of the sphere. In addition, magnets were arranged in the North Pole and South Pole, and the magnetic force was applied to maintain the positional relationship as the earth.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 This invention relates to a globe of educational tools.

[0002]

[Prior art]

 Conventional globes usually use a ring indicating latitude, set a rotation axis, and hold the globe sphere. Therefore, the globe can be rotated only to the left and right.

[0003]

[Problems to be solved by the invention]

 Since the sphere is held around the axis of rotation, about two-thirds of the globe's north pole, northern hemisphere, and southern hemisphere can be confirmed with normal vision, but the further parts near the south pole are difficult to see. There was no globe that could look directly at Antarctica from the side.

[0004]

[Means for Solving the Problems]

 A plate-shaped tray is provided on the stand that holds the entire globe, several ball bearings are arranged on the tray, the sphere is held instead of the rotation axis, the axis is abolished, and the top and bottom on the ball bearing are removed. , Left and right freely rotatable. In addition, magnets are arranged at the north and south poles to maintain the positional relationship between the northern and southern hemispheres. Similarly, at the top of the ring indicating latitude, if the magnet arranged at the north pole is an N pole, an S pole At the bottom of the ring showing latitude, the magnet at the south pole is the north pole if the magnet arranged at the south pole and the magnet at the counter pole are arranged at the bottom of the ring indicating the latitude. Make the earth maintain its position.

[0005]

[Action]

 By abolishing the rotation axis that holds the globe sphere and holding the sphere with ball bearings, the sphere can be freely rotated up and down, left and right, and 360 degrees.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a first embodiment of the present invention, and magnets (5), (6), (7), and (8) are used to secure the positions of the north pole and the south pole in a stationary state. did. Figure 2 shows the sphere rotated about 100 degrees to the upper right using free rotation so that the South Pole can be seen from the side.

[Effect of the invention]

 By enabling the free rotation of the top and bottom and left and right, the part near the south pole of the southern hemisphere, such as the poles of Australia and Antarctica, can be viewed directly from the side.

[Brief description of the drawings]

FIG. 1 is a side view of a globe holding a sphere by a ball bearing instead of a rotation axis.

FIG. 2 is a diagram showing a sphere that is rotated about 10 times to the upper right using free rotation.
Rotated by 0 degrees, so that the South Pole can be seen from the side.

[Explanation of symbols]

(1) ... Earth main body (2) ... Latitude display ring (3) ... Sphere holding tray (4) ... Sphere holding, ball bearing (5) ... N pole permanent magnet attached to latitude ring on the north pole of the globe (6) S-pole permanent magnet attached to the north pole of the globe and inside the sphere. (7) S-pole permanent magnet attached to the south pole of the globe and the latitude ring. (8) N-pole permanent magnet attached to the south pole of the globe and inside the sphere. Magnet (9) ... Stand for holding the entire globe (10) ... Antarctica (11) ... Longitude display line

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[Procedure amendment]

[Submission date] September 18, 2001 (2001.9.1)
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] An earth globe which can be freely rotated by eliminating a rotation axis. 2. A permanent magnet is applied to achieve the same function as a rotating shaft.