Magnetic levitation retainer

Abstract

To provide a magnetic levitation retainer that can stably hold an object levitated by repulsive force of magnetic force and can integrate a base part with one magnet and a levitating body part with the other magnet of the same pole as a whole.SOLUTION: A magnetic levitation retainer includes a base having magnets arranged with the N- or S-pole surface on the upper side, and a levitating body arranged with the same pole surface as the magnets on the base side on the lower side; and having a retaining member for holding the levitating body that is floated by repulsive force of the magnets on the levitating body side and magnets on the base side, in the air against the repulsive force.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a magnetic levitation and holding body using the repulsive force of magnetism.

Background Art

[0002] When magnetic poles are arranged with the same poles facing each other, a repulsive force occurs between them. Utilizing this principle, an object can be levitated and is applied in various fields. For example, Patent Document 1 discloses a non-contact support structure for an object that levitates the object by magnetic repulsive force. However, all of the object levitation structures proposed so far levitate based on the balance between the weight of the object and the magnetic repulsive force, and it cannot be said that the levitation state is stable.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a magnetic levitation and holding body that can stably hold the state in which an object is levitated by the repulsive force of magnetism and can integrally form a base provided with one magnet and a floating main body provided with the other magnet of the same pole as a whole.

Means for Solving the Problems

[0005] The magnetic levitation and holding body according to the present invention includes a base having a magnet disposed with the N-pole surface or the S-pole surface on the upper surface side, and a floating main body disposed with the same pole surface as the magnet on the base side on the lower surface side, and has a holding member for holding the floating main body levitated by the repulsive force between the magnet on the floating main body side and the magnet on the base side against the repulsive force in the air. This allows the levitation body to float in the air due to the magnetic repulsive force against the base, while the levitation body can be integrated with the base by a holding member directly or indirectly positioned between the base and the levitation body, thereby stably maintaining the levitation state.

[0006] The holding member in this invention should not significantly impede the characteristics of aerial holding, such as swaying and vibration, which are achieved by levitating the levitation main body from its base using magnetic repulsion. For example, the holding member is preferably made up of a plurality of flexible wires, with the upper ends of the plurality of wires connected to the floating body and the lower ends of the plurality of wires connected to the base. In this case, it is even better if the plurality of wires are arranged in a polygonal pyramidal shape such that the connection interval between the plurality of wires on the floating body side and the connection interval on the base side is greater than the other. This means that either a tapered arrangement with narrower spacing at the top or a reverse tapered arrangement with narrower spacing at the bottom is acceptable. Furthermore, if multiple wires are set to different lengths or thicknesses, not only when they are all the same length, but also when one or more of the wires are set to different lengths or thicknesses, a change will occur in the oscillation trajectory around the levitation body when it sways.

[0007] Here, a flexible wire refers to a wire that can be freely bent, and typical examples include various threads and strings, but it may also be a wire or a thin pipe. Furthermore, the wire material may be an elastic material that stretches and contracts like a rubber band, or an elastic member such as a long, slender coil spring.

[0008] The levitation body in this invention is characterized by being held in the air in a swingable and vibrating manner by the action of magnetic repulsion and the tensile force of the holding member, and may be various decorative elements. In particular, if the floating body is a sound-producing element such as a bell or chime, the vibrations are not hindered, making it easier to produce sound, and the resonance of the sound is longer. [Effects of the Invention]

[0009] In this invention, the levitation body is held stably in the air by the repulsive force of the magnets between it and the base, and is pulled by the holding member, thus forming an integrated magnetic levitation holder as a whole. This allows the object to be carried as a single unit, unlike conventional methods that rely solely on the balance between the object's own weight and magnetic repulsion to levitate. [Brief explanation of the drawing]

[0010] [Figure 1] An example of the structure of the magnetic levitation holder according to Example 1 is shown. [Figure 2] Example 2 is shown. [Figure 3] Example 3 is shown. [Figure 4] Example 4 is shown. [Modes for carrying out the invention]

[0011] An example of the structure of a magnetic levitation support according to the present invention will be described below with reference to the figures, but the present invention is not limited thereto.

[0012] Figure 1 shows Example 1. The magnetic levitation holder has a base portion 20 with a base-side magnet 21 fixed to its central part, and a levitation body portion 10 with a levitation magnet 11 fixed to its bottom. The base magnet 21 and the levitation magnet 11 may be magnets such as neodymium magnets, and the upper surface of the base magnet 21 and the lower surface of the levitation magnet 11 are of the same pole, either north or south. Here, the terms "upper side" and "lower side" refer not only to cases where the upper and lower parts are exposed from the surface of the base or the surface of the floating body, but also to cases where they are embedded inside.

[0013] The levitation main body 10 attempts to levitate into the air due to the same-polarity repulsive force between the levitation magnet 11 and the base-side magnet 21. In this case, if the magnetic center of the base-side magnet 21 is displaced from the magnetic center of the levitating magnet 11, the levitation state will not be stable. Therefore, in the first embodiment shown in FIG. 1, the levitating main body 10 and the base 20 are connected and held in the tensile direction by three holding members 31, 32, and 33 so as to resist the magnetic repulsive force therebetween. In FIG. 1, (a) and (b) are representations with the direction of the base 20 changed. (c) is a partial cross-sectional view, (d) is a perspective view seen from below, (e) is a plan view, and (f) is a bottom view. The holding members may be flexible wire rods such as strings or threads. The upper ends 31a, 32a, and 33a of the holding members 31, 32, and 33 are connected concentrically and at equal intervals around the levitating magnet 11, and the lower ends 31b, 32b, and 33b of the holding members 31, 32, and 33 are connected concentrically and at equal intervals around the base-side magnet 21. In this case, they are arranged in a triangular pyramid shape such that the radius of the concentric circle on the upper end side of the holding member is larger than the radius of the concentric circle on the lower end side. In this way, for example, when the magnet center of the levitating main body 10 tries to move in a direction shifted to the right from the magnet center on the base side in FIG. 1(a), the movement is restricted by the holding member 32 that pulls from the left side. In the above description, the case of shifting to the right has been explained. However, when three or more holding members are arranged in a concentric polygonal pyramid shape, the movement is restricted no matter in which direction the shift occurs, so that the levitation state is stably maintained. Also, although the above shows an example in which the interval between the plurality of wire rods on the upper end side is narrower than the interval on the lower end side, the reverse arrangement in which the lower end side is narrower than the upper end side also acts in the same manner. In the first embodiment, an example in which the holding member is composed of three wire rods has been shown, but the number of wire rods is not limited as long as it is three or more. Also, the lengths of the wire rods may all be the same, or if they are set such that one or two or more of them have different lengths from each other, the levitating main body will be levitated and held by the balance of the magnetic repulsive forces applied to the plurality of wire rods. As a result, the rocking orbit generated when the floating main body rocks becomes different from a perfect circular motion, and the change in its movement can be enjoyed. Therefore, in addition to setting the plurality of wire rods to have different lengths, they can also be set to have different thicknesses and tensile strengths. When the wire rod is made of an elastic material such as rubber, it floats while balancing with the magnetic repulsive force, so a change in the vertical direction also occurs.

[0014] In the embodiment of FIG. 1, an example is shown in which the base 20 has leg portions 22a, 22b, and 22c arranged concentrically in three directions around the base-side magnet 21. Also, the floating main body 10 is an example in the shape of a bell having an opening 10a at the upper part.

[0015] In the second embodiment of FIG. 2, an example is shown in which the base 20A is circular and the floating main body 10A is in the shape of a cup-shaped bell. In FIG. 2, (a) is an external view, (b) is a partial cross-sectional view, (c) is a plan view, and (d) is a bottom view. In the first and second embodiments, by using the base-side magnets 21 provided on the bases 20 and 20A, the magnetic levitation holder according to the present invention can also be adsorbed (fixed) and held on the side surface of various steel products, above, or on a wall or the like.

[0016] In the third embodiment of FIG. 3, an example is shown in which the floating main body 10B has an opening 10b on the lower side and is in the shape of a rin type. In FIG. 3, (a) is an external view, and (b) and (c) are partial cross-sectional views. (b) is an example in which the distance between the magnets of the column portion 21 formed at the center of the base 20B is adjusted by forming a thick portion at the inner top portion of the floating main body 10B. (c) is an example in which the connecting portions with the holding members 31, 32, and 33 are provided near the upper inner part of the rin so that the floating main body 10B can easily rock. If it is done in this way, when the floating main body is struck with a rin rod or the like, shaking appears and a resonance sound is generated, and the afterglow is long. Figure 4 shows an example in which the shape of the base 20C is disc-shaped and the lower part of the retaining members 31, 32, and 33 is widened. [Explanation of Symbols]

[0017] 10. Floating main body 11. Levitation Magnet 20 base 21 Base side magnet 31, 32, 33 Retaining members

Claims

1. A base having a magnet positioned with the north pole or south pole facing upwards, The levitation body is provided with the same polar side as the base magnet facing downwards, The levitation body, which is lifted by the repulsive force between the magnet on the levitation body side and the magnet on the base side, has a holding member for holding it in the air against the repulsive force, The holding member consists of three or more flexible wires. The upper ends of the aforementioned multiple wires are connected to the levitation body at concentric and equal intervals. The lower ends of the aforementioned multiple wires are connected to the base side at concentric and equal intervals. The magnetic levitation holder is characterized in that the levitation body is a sound-producing element.

2. The magnetic levitation holder according to claim 1, characterized in that the plurality of wires are arranged in a polygonal pyramidal shape such that the connection interval between the plurality of wires on the levitation body side and the connection interval on the base side is greater than the other.

3. The magnetic levitation holder according to claim 2, characterized in that the plurality of wires are of different lengths or thicknesses.

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