JP3008250U - Magnetic levitation toys - Google Patents

Abstract

(57) [Summary] Magnetic levitation toy [Purpose] To provide a magnetic levitation toy that stabilizes the posture of a levitation magnet. A magnetic levitation toy comprising a levitation magnetic stand 1 having a levitation magnet 2 and a magnetic levitation top 5 having a levitation side magnet 6 magnetized so that the sides facing the levitation magnet 2 have the same polarity. [Effect] With a simple magnet structure, the magnet (levitation side magnet) can be stably levitated above the magnet (levitation magnet).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a magnetic levitation toy, more specifically, a phenomenon in which a permanent magnet is levitated in the air in a magnetic field generated by a permanent magnet or an electromagnet without using mechanical means such as a tension member and a support member. A magnetic levitation toy using

[0002]

[Prior art]

 Today, magnet bodies such as permanent magnets and electromagnets have come to be used in various fields. The range of applications is almost all fields such as electric appliances and construction machinery, and they are incorporated as parts in various forms in the field of toys and parts. The magnetic poles of such magnets have been called N poles and S poles for a long time, and the pole facing north in the earth's magnetic field is the north pole and the pole facing south is the south pole. The same poles, that is, N poles, and S poles repel each other, and the different poles, that is, N pole and S pole have a property of attracting each other. With such a property, it is possible to levitate another magnet with respect to one magnet. If such levitation can be realized, the frictional resistance of the object can be reduced as much as possible by rotating in the air or moving straight. For example, a magnetic levitation train is an example of this. However, in order to carry out such levitation, highly academic magnetic control means for overcoming the essential instability due to the repulsion of two homopolar magnets was essential. There is a physical instability in a simple levitating system that attempts to levitate the first magnetic pole above the second homogenous pole. Therefore, a phenomenon occurs in which the second magnet passes over the first magnet, jumps over it, and finally the different types of poles attract each other and stick to each other to become one. It was mathematically proved in the early 20th century that no matter how the magnets are arranged and combined, it is not possible to stably levitate the magnets in a magnetic field unless some kind of support means or control means is used. There is also. This is because there is always some instability in the system in which a single magnet or a group of magnets is levitated in a magnetic field formed by a single magnet or group of magnets. Therefore, an attempt was made to somehow try to minimize the above instability associated with magnetic levitation.

A relatively well devised device is a levitation system using a magnet group in which a plurality of magnets are gathered in a unique arrangement. For example, U.S. Pat. No. 2,323,837 to Neil shows a magnetic system in which a magnetic base is disk-shaped. This is a magnetic system in which a plurality of cylindrical magnets are arranged around the axis in a magnetic base. A plurality of cylindrical magnets on the upper side are arranged on a spherical upper magnet body on a circumference having a diameter smaller than the diameter of the circumference where the cylindrical magnets are arranged on the magnetic base. Has been done. The magnets on the lower side and the magnets on the upper side have the same poles, and the axes of the plurality of magnets on the upper side are oriented in the same direction or are slightly inclined. The axis also points in the same direction or is slightly tilted. Such a magnet arrangement of the magnetic base creates a conical magnetic field that converges in the smaller diameter, homopolar magnetic field of the upper magnet. According to Neil's invention, such a conical magnetic field can stabilize the levitation system. On the other hand, the Harrigan patent, U.S. Pat. No. 4,382,245, shows another simple levitation system. It uses a dish-shaped lower magnet to magnetically support and levitate a magnetic piece that rotates coaxially above. It is explained that the dish-shaped or concave-shaped lower magnet generates magnetic field lines that are directed inward in the radial direction, and creates the stability of the levitation system together with the gyro effect due to the rotation of the top. According to another embodiment shown by the Harrigan patent, stability is caused by a non-magnetic mass supported below the lower magnet on the arm extending out of the magnetic top and through the central hole of the lower magnet. It is explained that it is created by the combined action of the pendulum effect and the concave surface of the lower magnet. In yet another embodiment, the lower field may not be created by a dish-shaped magnet, but may be created by a plurality of cylindrical magnets in an arrangement similar to that of the Neal patent.

[0004]

[Problems to be solved by the device]

 Such magnetic levitation devices (or magnetic levitation systems) known today require a complex array of magnets and cannot be easily modified. Also, since the stable area is narrow, special tips are required to levitate. The above-mentioned Harrigan patent achieved considerable stability by generating magnetic lines of force inward in the radial direction and utilizing the gyro effect.However, this magnetic levitation device has a narrow stable region in the height direction, so it can move up and down. It is hard to make it and has little fun. The present invention has been made based on such a technical background, and aims to achieve the following objectives. An object of the present invention is to provide a magnetic levitation toy in which the magnet structure for levitation of a magnet is in principle simple. Another object of the present invention is to provide a magnetic levitation toy which stabilizes the horizontal translational motion of the levitation magnet. Yet another object of the present invention is to provide a magnetic levitation toy that stabilizes the vertical translational motion of the levitation magnet. Still another object of the present invention is to provide a magnetic levitation toy that stabilizes the posture of the levitation magnet. Yet another object of the present invention is to provide a magnetic levitation toy that simultaneously stabilizes the attitude of the levitation magnet and the translational movement in the horizontal or vertical direction. Yet another object of the present invention is to provide a magnetic levitation method for the magnetic levitation toy.

[0005]

[Means for Solving the Problems]

 The object of the invention is achieved by the means described and selected below. That is, the present invention comprises a height region having a substantially closed peripheral edge and a magnetized first surface surrounded by the peripheral edge and having a negative magnetic field gradient in a vertical direction perpendicular to the first surface. A levitation magnet (2) having the rim shaped so that the peripheral edge is shaped so as to form a common height region having a common height region in which a magnetic field gradient in a parallel direction parallel to the first surface is positive. It is composed of a magnetic stand (1) and a magnetic levitation piece (5) having a levitation side magnet (6) having a second surface magnetized so that the side facing the levitation magnet (2) has the same pole. Exists in magnetic levitation toys. The levitation magnet (2) is a magnetic levitation toy equipped with a horizontal adjusting means for adjusting the first surface horizontally. The levitation magnet (2) also resides in a magnetic levitation toy equipped with a horizontal sensing means (29) for confirming that the first surface is horizontal. Further, a magnetic levitation piece (1) having a levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. It exists in a magnetic levitation toy consisting of (5). Further, a levitation magnetic stand (1) having a polygonal levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity are provided. It exists in a magnetic levitation toy consisting of a magnetic levitation top (5). Further, a levitation magnetic stand (1) having a regular triangular levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity are provided. It exists in a magnetic levitation toy consisting of a magnetic levitation top (5). Also, a magnetic levitation table (1) having a square levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. It exists in a magnetic levitating toy consisting of a levitating piece (5). The levitation magnet (2) is also a magnetic levitation toy, which is a ring-shaped magnet. Also, the levitation magnetic stand (1) having a regular hexagonal levitation magnet (2) and the levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. It exists in a magnetic levitation toy consisting of a magnetic levitation top (5) equipped with. The levitation magnet (2) is also a magnetic levitation toy, which is a ring-shaped magnet. In addition, a levitation magnetic stand (1) having a star-shaped levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same poles are provided. It exists in a magnetic levitation toy consisting of a magnetic levitation top (5). Further, it also exists in a magnetic levitation top that is used to levitate in a magnetic field by containing a substantially ring-shaped magnet magnetized in a plane orthogonal to the rotation axis.

According to the present invention, the levitating magnet is stabilized by the following physical action. The present invention mechanically constrains another magnet above one magnet by both the previously unrecognized characteristic properties of a magnetic field on a uniformly magnetized surface and the rotational motion of a levitation magnet. It is based on the magnetic levitation stabilizing effect that stabilizes without. More specifically, the present invention utilizes a uniformly magnetized or substantially flat magnetic levitation platform to levitate the spinning magnetic pieces. On a uniform magnetic surface, that is, a substantially flat magnetic table for levitation, for example, a magnetic levitation top incorporating a flat annular (ring-shaped) magnet is levitated. If necessary for balance, one or more non-magnetic seating plate-shaped weights / weights, for example, weight adjusting rings are attached to the magnetic levitation floats for levitation. The magnets of the magnetic levitation table and the magnetic levitation piece are preferably sheet-like materials that are magnetized in a plane, and the magnetic lines of force of the magnetic levitation table and the magnets of the magnetic levitation top are in opposite directions. The sheet-like material magnetized in this way is a term of the meaning of a magnetic shell (in this specification, a magnetic body that generates a magnetic field, that is, a body in which local spins and local magnetic moments are gathered. Therefore, the surface with a circle formed by one closed wire as the peripheral edge, and the surface with the circle of the central cross section where the magnetic field of the cylindrical permanent magnet is zero is also a magnetic shell from an electromagnetic perspective. Is equivalent). The magnetic field strength of a magnetic shell is defined as the magnetic moment per unit area, that is, the number of unit poles per unit volume, which is the thickness of the shell times the area.

The magnetic field of a uniformly magnetized shell is comparable to that produced by a current flowing around the periphery of the shell. The current intensity i is ampere, which is the same numerical value as the strength of the shell, and a shell having the same uniform strength and the same outer circumference produces a field of the same strength at all outer points. In other words, the strength of the magnetic field does not depend on the shape of the shell surface. When the surface of the magnetic levitation table is made to be concave instead of being flat, magnetic centering force (magnetic force in the centripetal direction) cannot be created on the magnetic levitation table. A previously unrecognized feature of the magnetic field on the magnetic shell is the fact that the outer shape of the shell affects the stability of the levitation system using the magnetic shell. In particular, a magnetic shell having a polygonal peripheral edge, particularly a rectangular or square (rectangular) peripheral edge, has a specific area several centimeters above the surface of the shell. The specific region is a place where the gradient of the magnetic field gives a rising force (dH z / dz) and a central force (dHx / dz) to the magnetic dipole on the diagonal line of the polygon. Hereinafter, unless otherwise specified in this specification, the differential symbols d / dz, d / dx, etc. represent deviations. Non-polygons, such as circles and ellipses, cannot create specific overlapping regions where the rising force and the central force are in the same region. A square vertex with some roundness is almost equivalent to a square, and a rectangle vertex with some roundness is approximately equivalent to a rectangle. However, if the two short sides of the rectangle are rounded so that they are close to an ellipse, the effect of the present invention is diminished and disappears. The essence and features of the present invention will be clarified through the embodiments and drawings, but the description of the embodiments deepens the understanding of the present invention, and the present invention is not limited thereto.

[0008]

The magnetic levitation toy according to the present invention comprises a levitation magnet (lower magnet) and a levitation magnet (upper magnet) whose opposing first and second surfaces are magnetically magnetized to have the same polarity. Repels. In this way, the second magnet above the levitation magnet receives a horizontal magnetic force having a positive gradient and a vertical magnetic force having a negative gradient in the magnetic field created by the levitation magnet. It receives and stabilizes in a specific area above the levitation magnet. The non-circular polygonal magnetic levitation platform of the present invention creates such a specific area. The levitation side magnet receives an almost vertical resultant force in a magnetic flux of parallel or nearly parallel magnetic fields in such a specific region, that is, a magnetic flux of uniform magnetic flux. The slight instability of the vertical axis of rotation of the rotating levitating magnet is eliminated by the gyro effect due to air friction and / or magnetic friction. According to the present invention, the levitating magnet is stabilized by the physical action as described in the embodiment. The present invention utilizes a characteristic property that has not been recognized in the past in a magnetic field on a uniformly magnetized surface. By adding the rotational motion of a levitating magnet to it, another magnet is placed above one magnet. It is based on the magnetic levitation stabilizing action that stabilizes without mechanical restraint.

[0009]

【Example】

 Prior to the description of the embodiments, the physical characteristics of the magnetic field produced by the flat magnet, which is the essential idea of the present invention, will be described in a general manner. First, the physical principle and operation of the present invention will be described using the system of the simplest embodiment. FIG. 1 shows a magnetic dipole 2 having a north pole and a south pole and having a length of l. Hereinafter, description will be made assuming that the magnetic quantities are concentrated on both poles. Now, assuming that the magnetic quantity of the N pole is m and the magnetic quantity of the S pole is −m, the magnetic dipole 2 has a magnetic moment M equal to the product ml of the magnetic quantity m and the length 1. The magnetic moment M is one vector along the axis of the magnetic dipole 2 in the direction from the N pole having the magnetic amount m to the S pole having the magnetic amount m. A magnetic field vector Hr extending in the radial direction from the center of the line segment connecting the two poles and an angular magnetic field vector Hθ orthogonal thereto are given by the following equation at an arbitrary point P in the magnetic field surrounding the magnetic dipole 2. .

[0010]

[Equation 1]

Equations (1) and (2) also define the magnetic field generated by the magnetic moment of the closed current represented by the product of the area A of the circular region and the annular current i flowing on the circle. Known in electromagnetics. Therefore, the permanent magnet described below can be considered as a physical achievement means that is physically equivalent to a coil made of an electric wire. The circular annular current i in FIG. 2 lies in the xy plane. The magnetic field generated by this current is indicated by the magnetic field lines that extend along the radial direction of the circle in which the annular current i flows (as is customary, the magnetic field direction is shown as the direction of the force line emerging from the N pole +). The lines of magnetic field (lines of magnetic force) diverge as they become higher than the position of the annular current i. The magnetic dipole 2 (m, -m) placed in such a magnetic field is shown in FIG. 2 as being positioned near the field symmetry axis Z. The angle of the magnetic dipole 2 (m, −m) with respect to the vertical axis is defined by α in the figure. The magnetic dipole 2 in this field produces an upward force at + m and a downward force at -m. Such forces produce a torque that causes the dipole to rotate clockwise. This torque T is approximately expressed by T = Hz · ml · sin (α) = HzM · sin (α) (3). As can be seen, the torque increases as α increases. The magnetic dipole 2 is unstable at the position shown in FIG. 2 and jumps and inverts, so that the S pole (−m) becomes downward and the magnetic dipole 2 assumes a stable state (however, it does not levitate). ).

[0012] Because of receiving such a torque, conventionally, the levitating magnet is not mechanically restrained while being kept stable, that is, the levitating magnet is not slid to the side and is jumped over. It was extremely difficult to levitate one permanent magnet above the other permanent magnet without any further reversal. As long as it is in the position shown in the figure, the field weakens as it goes upwards, so the upward force on + m is greater than the force on -m. Therefore, an upward force acts on the magnetic dipole 2 as a whole. This upward resultant force is approximated by assuming that the length of the magnetic dipole 2 is short, and is given by the following equation. Fz = M · cos (α) (dHz / dz) (4) The force in the x direction, that is, the lateral force is similarly given by the following equation. Fx = M · cos (α) (dHx / dz) (5) As Hx increases with z, the resultant force of the lateral forces is directed towards the center, the axis of this field. That is, there is a central force that does not slide toward the outside of the field. The upward and lateral forces on the dipole are proportional to the spatial rate of change (ie, slope) of the field and are not proportional to the field strength. If the strength of the field is increased as a whole, it will be increased by the increased amount. That is, if the strength H of the magnetic field is multiplied by k using the proportional constant k, dHx / dz is also multiplied by k. The word "whole is" in the expression "becomes stronger to the whole" is mathematically different from "uniform" in that the term "uniform" is used. In a perfectly uniform field (where all lines of magnetic force are perfectly parallel to each other), the magnetic dipole 2 receives no torque, no matter how strong the field, but only torque.

According to the present invention, previously unrecognized features of the magnetic field above the magnetic shell are clearly recognized. That is, at a few centimeters above the surface of the shell, an overlapping region where the gradient of the magnetic field exerts a rising force (negative dHz / dz) and a central force (positive dHx / dz) on the magnetic dipole at the same time ( Common area). This feature is shown, for example, in FIGS. 3 and 4 for a 10 cm square magnetic shell. The abscissas of both figures show the magnitudes of dHz / dz (Fig. 3) and dHx / dz (Fig. 4), respectively, and the abscissas of both figures show the height from the magnetic shell. In this case, a square magnetic plate with a side of 10 cm and a strength of 780 unit poles per square cm is used as the magnetic shell. The relationship between the vertical height z and the magnetic gradients dHz / dz and dH x / dz is plotted at the intersection of both diagonal lines on the diagonal line of this magnetic plate, that is, at the point separated by 0.5 cm from the center of the square. Has been done. For example, the curve with the display h = 3.0 in FIG. 3 is 3. on the diagonal from the center of the square. The relationship between the height z on the vertical line passing through the point 0 cm apart and the magnetic gradient dHz / dz is shown. DHz / dz has a negative minimum value (maximum absolute value) at all radial positions, and this minimum value decreases as the distance from the center (h = 0.0 cm) of the square (rectangle) ( The absolute value increases), and the vertical position where the minimum value is reached is low.

As shown in FIG. 4, dHx / dz has a value that converges at a height position of about 2.3 cm regardless of the distance from the center of the square, and is higher than a certain height. Has a positive value at. For example, when h is 3.0 cm, dHx / dz becomes zero at a height of 2.3 cm, and has a negative value above this height. It is shown in dHz / dz of Eq. 4 in FIG. 3 that a small thin annular magnet-like dipole magnetized through the thickness is raised relative to the shell along the axis of the shell. It is understood by substituting the value on the horizontal axis. The upward force on the magnet increases until the negative slope dHz / dz reaches a peak value and then decreases. The peak value (minimum value) of dHz / dz at each distance from the center is the height position where the maximum weight dipole can be lifted against gravity. A dipole with a weight slightly less than this maximum value should be levitated by the magnetic field past the peak value of dHz / dz. Therefore, it will be levitated at a slightly higher position, which is different from that point. If dHx / dz is negative at such a height, for example z> 2.3 cm, the dipole will slide laterally out of the field. This is because there is no positive central force along the diagonal line of the magnetic levitation table. The area that enables such stability is 2.3 cm or less.

According to the curves of FIGS. 3 and 4, when h is small, the positive center force is small and the levitation force is also small. Therefore, when a 10 cm square magnetic shell is used, the distance from the center should be large. Good. In this case, for example, h is more stable when it is larger than 2 cm. On the other hand, when h becomes too large, the central force becomes small when the height becomes high, so h is preferably smaller than 3 cm. From this, it can be concluded that the floating magnet, which is a set of magnetic moments, should be an annular magnet having an inner diameter of about 2 cm and an outer diameter of at most 3 cm when the magnetic shell has a square shape. With such dimensions, the annulus will float and be centered and stable (ie it will not fall out of the field). By the way, according to the magnetic field calculation of the circular magnetic shell, in the height region where the central force exists, the height regions where the ascending force has the maximum value do not exist in an overlapping manner. That is, the height limit at which the central force exists, that is, the limit height equal to or lower than the height at which dHx / dz changes from positive to negative is a negative peak value dHz at all radial distances corresponding to the distance h. It is smaller than / dz. Thus, it is impossible to levitate the permanent magnet above the circular magnetic stand. When tested with other shaped permanent magnets, such as triangular, X-shaped permanent magnets, it was found that squares (rectangles) were most preferred. Thus, theoretically, the ring magnet can float above the square (rectangular) magnetic shell and stay at the center position. However, if no specific constraint is imposed, the ring magnet will move and levitate. Fall on the magnetic table for use. The constraint to avoid this is to rotate the annular magnet around the axis to cause gyro motion to avoid reversal. When the annular magnet rotates faster than a certain angular momentum, it rotates straight on the levitation magnetic table without wobbling. When the speed decreases due to the air resistance, the ring magnet begins to reverse and invert, and eventually perturbs. The lower rotational speed analyzed for the annular magnet to initiate levitating wobble in stable conditions is given by:

[0016]

[Equation 2]

As a design constant used here to describe the present invention, the rotation speed required to avoid the rotation of the annular magnet is required to be about 20 rotations per second.

[Embodiment 1] Next, a preferred embodiment of the present invention, which describes the theoretical principle of operation, will be described. As shown in FIG. 5, for example, the surface of a magnetic levitation platform 1 having a regular hexagonal shape with a thickness of 1.2 cm and a side of 5 cm is molded of resin. In the levitation magnetic stand 1, a levitation magnet 2 which is a permanent magnet which is an important component of the present invention, that is, a magnetic shell used in the theoretical explanation is embedded. As shown in FIG. 6, the levitation magnetic stand 1 is covered with a synthetic resin, and the levitation magnet 2 is hidden inside the levitation magnetic stand 1 (in FIGS. 5 and 7 to 10, the inside of the levitation magnet 2 is hidden). The levitation magnet is omitted). For convenience of explanation, it is assumed that the levitation magnet 2 has an N pole on the upper surface side. Since the levitation magnetic stand 1 has the levitation magnets 2 hidden, it has the effect of astonishing the viewer by raising the magnetic levitation top as described below without making the viewer feel the presence of the magnets. . The levitation magnet 2 hidden inside the levitation magnetic stand 1 does not necessarily have to be hexagonal. As the theory reveals, it is better that the levitation magnet 2 is a quadrilateral, especially a square. Generally speaking, a plate having a substantially polygonal shape may be used, and a circular shape or an elliptical shape having a smooth peripheral edge is not suitable.

The thickness of the permanent magnet has virtually no significant technical meaning. Further, it is desirable that the magnetic flux is oriented in the vertical direction as much as possible. If the magnetic force increases uniformly (increases regardless of the differential), the weight (mass) of the levitation piece, which will be described later, can be increased. The levitation assisting tool 3 is used for levitation of the top, which will be described later, especially for beginners who are not familiar with the operation of the toy. The levitation assisting tool 3 is a simple plate having no magnetic force and not a magnetic shield. The levitation assisting tool 3 is preferably made of a material that does not weaken the magnetic lines of force of the levitation magnet 2 penetrating vertically through the levitation assisting tool 3, that is, a plate-shaped thin insulator, for example, a transparent resin sheet is used. . A handle 4 is projected from a part of the peripheral edge of the levitation assisting tool 3 so as to be convenient for lifting the levitation assisting tool 3. The levitation assisting tool 3 preferably has the same shape as the levitation magnetic stand 1 in a plan view except for the handle 4. When such a levitation assisting tool 3 is used, the magnetic levitation top 5 is arranged above the levitation assisting tool 3. The magnetic levitation piece 5 comprises a levitation side magnet 6 which is a circular permanent magnet on the levitation side, a mandrel 7 and, if necessary, a weight adjusting ring 8. The circular magnet is, for example, a disk magnet or a ring magnet. The levitation side magnet 6 is an N pole whose lower side is opposite to the levitation magnet 2.

The levitation side magnet 6 shown in FIG. 5 has a ring shape, and the reason thereof is, as has been clarified in the theoretical explanation, a ring-shaped magnet (for example, a magnetic shell of 10 cm square having no magnetic moment at the center). In this case, it is preferable that the inner diameter is 2 cm and the outer diameter is 3 cm in view of the levitation force and stability. A magnet whose magnetic moment at the center is smaller than that at the outer circumference can be considered to be a ring shape as a magnet. The thickness of the levitation side magnet 6 does not have a practically important technical meaning (however, the expressions 4 and 5 are expressed as the extreme values where the thickness approaches zero as much as possible). It is desirable that the magnetic flux be oriented in the vertical direction as much as possible, and if the magnetic force is uniformly increased, the weight (mass) of the levitation piece 5 including the levitation side magnet 6 can be increased. The magnetic levitation piece may be a disk or ring made of only a magnet, and the mandrel 7 is not always necessary. Further, the weight adjusting ring 8 fitted in the center of the ring-shaped magnet is not always necessary if it is balanced. Normally, the weight adjusting ring 8 is used, but at this time, the adjusting ring 8 is passed through the mandrel and placed on the upper surface of the levitation side magnet 6. The adjusting rings 8 having different weights, that is, a plurality of large and small ones having different outer diameters can be used in a vertically stacked manner.

Next, a procedure for levitating the magnetic levitation piece 5 above the levitation magnetic stand 1 will be described. First, as shown in FIG. 5, the levitation magnetic stand 1 is placed horizontally, and the levitation assisting tool 3 is placed thereon and left horizontally. At this time, the levitation magnetic stand 1 and the levitation assisting tool 3 are placed so that the peripheral edges thereof overlap (when the levitation magnetic stand 1 and the levitation assisting tool 3 have substantially the same shape as in this example, both Are easy to align). In such a state, the magnetic line of force at the center of the levitation magnet 2 in the levitation magnetic stand 1 penetrates the center of the levitation assisting tool 3. Next, the lower end of the mandrel 7 of the magnetic levitation piece 5 is positioned substantially at the center of the levitation aid 3 and the magnetic levitation piece is rotated on the levitation aid 3. Next, the handle 4 is held by a finger and the levitation assisting device 3 is raised while being kept horizontal. At this time, the magnetic levitation piece 5 is lifted with the lower end of the mandrel in contact with the upper surface of the levitation assisting tool 3, as shown in FIG. Then, when further raised, as described in the theoretical explanation, the ascending force becomes maximum at a certain position where the height becomes higher, so that the magnetic levitation top 5 approaching this height position is as shown in FIG. , Suddenly jumps vertically upward from the levitation aid 3. The magnetic levitation top 5 temporarily jumps up into the air and slightly descends, but stops at a height position almost instantaneously and becomes stable. Here, as shown in FIG. 9, the levitation assisting tool 3 is quickly pulled out and removed from the levitation magnetic table 1.

By adjusting the weight of the magnetic levitation piece 5, the magnetic levitation piece 5 is stabilized at a position lower than the lateral stable limit height position (the lateral stable limit height position is 3. Stable position below 1 cm). The stable height position is a height position where the gradient (dHz / dz) of the magnetic field has a minimum value (maximum absolute value), but the weight of the magnetic levitation top 5 and the above equation (3) ) And the like, it is affected by the magnetic moment M. By adjusting the weight of the magnetic levitation piece 5 and guiding the levitation side magnet 6 of the magnetic levitation piece 5 to the position of the minimum value, the vertical stability can be maximized. The height position is determined by the size of the differential coefficient, but it uniformly increases by a proportional constant. When the top of the mandrel 7 of the stable magnetic levitation piece 5 is pushed slightly downward, the magnetic levitation comma 5 makes a slight descent and then jumps up to a position slightly above the original height position, but quickly Stable at the original height. If the lateral magnetic gradient (dHx / dz) is positive at such a height position, the magnetic levitation top 5 receives a central force. Initially, it sways in the lateral direction, but becomes stable when the central axis of the levitation magnet 2 and the central axis of the mandrel 7 overlap.

In this embodiment, lateral stability cannot be obtained at a height of 3.1 cm or more. The torque expressed by the equation (3) is generated in the levitation magnet 2 of the magnetic levitation top 5, but if the angular velocity is equal to or higher than the lower limit angular velocity expressed by the equation (6), it is straightened by the gyro effect. Stable rotation. The air resistance that contributes to the stability of the magnetic levitation piece 5 reduces the rotation angular velocity of the magnetic levitation piece 5. The magnetic levitation piece 5 that has decreased to the angular velocity of equation (3) starts to sway, then changes its height position and descends, sways in the lateral direction and perturbs, and finally loses stability and reverses. It is attracted to the magnetic base 1 for tilting and levitation. Such a motion is one typical one, and various motions are performed depending on the initial conditions when the rotated magnetic levitation top 5 is placed on the levitation assisting device 3. Then you can play with fun. If the magnetic levitation piece 5 does not levitate without being separated from the levitation aid 3 even if the magnetic levitation piece 5 is lifted by the levitation aid 3, it is considered that the magnetic levitation piece 5 is too heavy.

In this case, weight adjustment such as removing the weight adjusting ring 8 or replacing it with a light weight adjusting ring 8 is repeated. When such adjustment is performed, the magnetic levitation top 5 at the height position indicated by H1 in FIG. 3 jumps toward H2 where the magnetic field gradient has an extreme value (the levitation magnet has a square shape). 3 shows a functional relationship similar to that of FIG. 3 even in the case of a regular hexagon. For convenience of explanation of this embodiment, FIG. 3 is incorporated. On the contrary, if the magnetic levitation piece 5 suddenly jumps up from the levitation assisting tool 3 and becomes unstable and falls, increase or replace the weight adjusting ring 8 to change the weight of the magnetic levitation piece 5. To increase. With the proper weight, the height H2 is the most stable in the vertical direction. However, this stability is not essential, and it means that the levitation force and the weight of the top are balanced. The lateral stability has no direct relation to the weight of the magnetic levitation top 5 and is essential. If it deviates from the vertical upward line at the center of the magnetic levitation platform 1, it will be pulled back to the vertical upward line. It is stable.

Second Embodiment FIG. 10 shows another embodiment of the present invention. This is an improvement in order to increase the height position at which the magnetic levitation piece 5 is levitated. The appearance is almost the same as that of the first embodiment, and is different from the first embodiment in that the magnetic field near the geometric center G of the levitation magnet 2 is weakened. The magnetic field in the central portion is weakened by opening the central hole 10 in the levitation magnet 2 as shown by the broken line in the figure, and the magnetic disk 11 having the opposite pole with the upper surface of the magnetic disk 11 being the S pole is formed in the central hole 10. It is further weakened by inserting it. The magnetic disk 11 can be easily attached and detached, and the strength of the magnetic field can be easily adjusted with different magnetic forces. The same effect can be obtained by sticking a magnetic disk having a pole having the same polarity as the back side pole on the back side to the back side of the center of the levitation magnet 2 without opening the center hole 10.

Example 3 The levitating magnet 2 shown in FIG. 11 uses an electromagnet 20 instead of a permanent magnet. As the magnetic shell, since the permanent magnet and the annular current are equivalent, the operation of the third embodiment is basically the same as that of the first and second embodiments. The annular current can be generated by applying a voltage across the substantially closed wire 21 or coil. In this case, the absolute value of the magnetic field quantity can be changed, but the functional form of the magnetic gradient cannot be changed. Since the magnetic field can be uniformly multiplied by a constant, it is possible to change the height position of the highest stable point of the magnetic levitation piece 5. On the other hand, it is also possible to cause a vertical movement of the magnetic levitation piece 5 by controlling the current. Also in this case, the flying height of the magnetic levitation piece 5 can be changed by providing the electromagnet 22 formed of a closed electric wire or coil through which a reverse current is passed in the center of the electric wire 21. That is, it is possible to control the movement of the magnetic levitation piece 5 in the vertical direction also by controlling the current of the electromagnet 22.

Next, the levitation magnetic stand will be described. 12 to 28 show an example in which the shape of the magnetic levitation table 1 in the first embodiment is changed (hereinafter, for reference, the magnetic levitation piece 5 is shown in a floating state). ). The levitation magnetic stand 1 in FIGS. 12 to 19 has a quadrangular upper surface. The magnetic levitation table 1 shown in FIG. 12 has a square shape, and the levitation magnet 2 incorporated therein is also a square. As described above in the theoretical explanation, the stability of the magnetic levitation piece 5 is better when it is a square than when it is a regular hexagon. The operation of the magnetic levitation top 5 to levitate on the levitation magnetic stand 1 is the same as in the first embodiment. The magnetic levitation table 1 shown in FIG. 13 is similar to a square, but is approximately square with smooth indents on each side and rounded corners. The levitation magnetic stand 1 shown in FIG. 14 is a substantially square one which is similar to a square but is smoothly recessed inward on each side and has no rounded corners. The levitation magnetic stand 1 shown in FIG. 15 is a roughly square one in which a part of the center of each side is smoothly recessed inward. Even in the case of these approximately quadrangular shapes, the relationships between the magnetic field gradients and the height positions shown in FIGS. 3 and 4 are substantially the same for each distance h from the center position. The levitation magnetic stand 1 shown in FIG. 16 has a tapered corner. The levitation magnetic stand 1 shown in FIG. 17 is provided with a tunnel portion 1C at the bottom. The levitation magnetic stand 1 shown in FIG. 18 has a supporting leg 1D at the bottom, and is a monopod table. When the levitation magnet section is made rotatable with respect to the support leg 1D, the magnetic field rotates and the levitation state of the magnetic levitation piece is actively disturbed, which is interesting. The magnetic levitation table 1 shown in FIG. 19 has a receiving portion 1E on its side surface. Even if the magnetic levitation comma 5 stops rotating and falls and spills from the magnetic levitation table 1, it is received by the receiving portion 1E. be able to.

The magnetic levitation table 1 shown in FIGS. 20 to 22 has a circular upper surface. The levitation magnetic stand 1 shown in FIG. 20 is of a simple circular shape, FIG. 21 has a top surface with a head shape, and FIG. 22 has a rocky decoration 1B on the side surface. In the case of the levitation magnetic stand 1 of FIG. 22, height adjusting means 30 (height adjusting means will be described later) is provided. The levitating magnets 2 incorporated in each are the most suitable square magnets because they do not levitate in a circular shape as described in the above theory. The levitation magnetic stand 1 shown in FIG. 23 is a regular triangle, and the levitation magnet 2 incorporated therein is also a regular triangle. In the case of a regular triangle, if each h is taken on the line connecting the center of gravity and the three vertices, the relationship between each magnetic field gradient and the height position shown in FIGS. The levitation magnetic stand 1 shown in FIG. 24 is of a polygonal star type, and the levitation magnet 2 incorporated therein is also a polygonal star type. 25 to 28 show a levitation magnetic stand 1 provided with horizontal adjusting means (height adjusting means and horizontal sensing means). The horizontal adjusting means includes a height adjusting means 30 and a horizontal sensing means 29. The height adjusting means 30 shown in FIG. 25 is a three-point adjusting type screw leg provided at the bottom, and the three magnetic legs are turned to horizontally level the magnetic levitation platform 1. The height adjusting means 30 shown in FIG. 26 is a three-point adjustment type wedge plate, and the three wedge plates are put in and taken out from the bottom surface of the levitation magnetic mount 1 to horizontally level the levitation magnetic mount 1. The height adjusting means 30 shown in FIG. 27 is a three-point adjusting type screw leg provided on the collar portion 1A, and the three magnetic legs are turned to horizontally level the magnetic levitation table 1. Unlike the screw foot, it is attached to the collar 1A, so the screw can be turned from the upper side. The height adjusting means 30 shown in FIG. 28 is one in which screw legs are provided at the lower ends of the four legs provided on the magnetic levitation table 1, and the four magnetic pedestals are turned horizontally by turning the four screw legs. Is to do.

On the upper surface side of the levitation magnetic stand 1 shown in FIGS. 25 to 28, horizontal sensing means 29, for example, spherical bubble tubes are attached (however, as the horizontal sensing means, Other than this, it can be used as long as it senses the level.) When the first plane of the levitation magnet 2 is horizontal, bubbles are located at the top (center) of the spherical tube of the bubble tube. Therefore, the horizontal can be sensed and recognized. Normally, from the standpoint of easiness of levitation, the levitation magnetic stand 1 is kept horizontal to levitate the magnetic levitation top 5, but in an extreme case, the levitation magnet 2 must always be set horizontally. Not a thing. When the levitation magnet 2 is slightly tilted from the horizontal plane, the axis of the levitation magnetic piece is only slightly tilted.

Next, a levitation auxiliary tool that is used as an auxiliary when the magnetic levitation top is levitated will be described. FIG. 29 shows a modified example of the levitation assisting device 3 different from that used in the first embodiment. In the first embodiment, a regular hexagonal one is a square in this case. As shown in the figure, a center point display 35 composed of several concentric circles centering on the center point of the square transparent resin sheet of the floating aid is printed. This is to be used as a guide for turning the magnetic levitation top 5 and guiding it to the central portion above it. Usually, such a levitation assisting tool 3 has the same shape as that of the levitation magnetic stand 1 (for example, when the levitation magnetic stand 1 is a hexagon, the levitation assisting tool 3 also has the same shape). It should be square). It is convenient to hold the handle 4 but it is not always necessary. The levitation assisting tool 3 shown in FIG. 30 is similar in shape to that of FIG. 29, but is provided with a coarse portion 36 except the area of the center point display 35, and the magnetic levitation piece 5 on the levitation supporting tool 3 is directed outward. Even if it tries to slip, it is designed so that it does not easily come off from the center.

Next, the magnetic levitation piece will be described. FIG. 31 shows a magnetic levitation top 5 mainly used in the present invention, FIG. 31 (a) is an oblique-axis projection view, and FIG. 31 (b) is a side view thereof. The magnetic levitation top 5 is exactly the same as the magnetic levitation top 5 briefly described in the first embodiment. The magnetic levitation top 5 is mainly composed of a levitation side magnet 6 and a mandrel 7, and a weight adjusting ring 8 is added if necessary. A lower end portion of the mandrel 7 which is in contact with the levitation assisting tool 3 is formed to be thick and round, and an upper portion of the mandrel 7 is formed to be tapered so that it can be rotated by a finger. The levitation side magnet 6 may have a magnet body attached to the bare mandrel 7, but it is preferable that the levitation side magnet 6 is embedded in a resin protective body (hereinafter, the magnet with a protective body is referred to as the levitation side magnet 6). . The levitation side magnet 6 is formed in a ring shape, and an arbor insertion hole (not shown) is formed in the levitation side magnet 6, and an arbor 7 is press-fitted into this arbor insertion hole. A lower weight adjusting ring 8a and an upper weight adjusting ring 8b are passed through the mandrel 7 from above, and are fitted in the respective axially stacked layers. In addition to the lower weight adjusting ring 8a and the upper weight adjusting ring 8b, it is of course possible to use several weight adjusting rings as necessary for adjustment. . A retaining ring 40 such as a rubber band or an O-ring is fitted into the mandrel 7 from above the mandrel 7. The snap ring 40 elastically sandwiches the lower weight adjusting ring 8a and the upper weight adjusting ring 8b between the levitation side magnet 6 and the lower weight adjusting ring 8a and the upper weight adjusting ring 8b. The separation ring 8b is prevented from coming off the levitation side magnet 6. However, even if the weight adjusting ring is not caught, it is separated from the weight adjusting ring so that at least the weight adjusting ring is not detached from the mandrel 7.

FIG. 32 shows another modification of the magnetic levitation piece 5, FIG. 32 (a) is an oblique-axis projection view, and FIG. 32 (b) is a side view thereof. The magnetic levitation top 5 is shown with its external appearance adjusted to the shape of a toy, that is, a UFO type shape. When levitated on the magnetic levitation platform 1, it looks as if the UFO is on the verge of landing, which is extremely interesting. FIG. 33 shows still another modification of the magnetic levitation piece 5, FIG. 33 (a) is an oblique-axis projection view, and FIG. 33 (b) is its side view. A magnetic levitation piece 5 having a spherical shape is shown. FIG. 34 shows still another modification of the magnetic levitation piece 5, FIG. 34 (a) is an oblique-axis projection view, and FIG. 34 (b) is its side view. A frame body 5B is provided to the one shown in FIG. FIG. 35 shows another modification of the magnetic levitation piece 5, FIG. 35 (a) is an oblique-axis projection view, and FIG. 35 (b) is its side view. A magnetic levitation piece 5 having a spindle shape is shown. FIG. 36 shows still another modification of the magnetic levitation piece 5, FIG. 36 (a) is an oblique-axis projection view, and FIG. 36 (b) is a side view thereof. The shape resembles a spaceship, and the astronaut-like shaped body 5A is rotatably attached to the mandrel 7. When the magnetic levitation frame 5 is levitated and rotated, it is as if an astronaut is swimming. give. FIG. 37 shows another modification of the magnetic levitation piece 5, FIG. 37 (a) is an oblique-axis projection view, and FIG. 37 (b) is a side view thereof. The shape resembles a helicopter, and the part corresponding to the rotating propeller is the levitation magnet part. By freely attaching the shape body 5A showing the helicopter body to the mandrel 7, when the magnetic levitation piece 5 is levitated and rotated, it gives the impression that the propeller is rotating.

FIG. 38 shows still another modification of the magnetic levitation piece 5, FIG. 38 (a) is an oblique-axis projection view, and FIG. 38 (b) is a side view thereof. The magnetic levitation piece 5 shown in the figure uses a centrifugal sesame 48, and is rotatably supported by a ring-shaped frame body 45 positioned in a vertical plane having a bearing body 47 that does not rotate. The upper and lower ends of the mandrel 7 of the magnetic levitation piece 5 are supported by bearings 47 of the ring-shaped frame body 45, and the magnetic levitation piece 5 rotates. A horizontal ring-shaped frame body 46 is attached so as to be positioned in a plane including the diameter of the ring-shaped frame body 45, and the horizontal ring-shaped frame body 46 carries the magnetic levitation comma 5 by hand. Acts as a handle for. In such a centrifugal piece, the ring-shaped frame body 45 or the horizontal ring-shaped frame body 46 is held by hand, and the magnetic levitation piece 5 inside is rotated using a string. Then, the magnetic levitation piece 5 can be levitated directly without any assisting means for levitation by taking it to a stable position on the levitation magnetic stand 1 and gently releasing it from there.

Next, a frame turning device used when necessary to turn the frame will be described. FIG. 39 shows a magnetic levitation piece rotation drive auxiliary tool 49 for turning the magnetic levitation piece 5, a so-called piece turning device. It is used as an aid for a relatively weak child who finds it difficult to give the minimum angular velocity of the formula (6) to the magnetic levitation piece 5 by turning the piece by hand. Grooves having a semicircular cross section are formed at the tips of the upper and lower projecting beams 51 and 52 of the main body 50, and the upper and lower ends of the mandrel 7 of the magnetic levitation piece 5 are fitted into these upper and lower grooves. In this case, a protrusion 53 is provided on a part of the mandrel 7 of the magnetic levitation piece 5 (another one may be provided at a 180 ° symmetrical position for balance). Place a rubber band 55 between the protrusion 53 on the magnetic levitation top 5 side and the protrusion 54 on the main body 50 side, and rotate the magnetic levitation top 5 in one direction by hand to wind it up to near the tension limit of the rubber band. When the magnetic levitation piece 5 is released, the magnetic levitation piece 5 rotates and the rubber band 55 comes off from the magnetic levitation piece 5. Therefore, if the magnetic levitation piece 5 thus rotated is placed on the levitation assisting tool 3, the magnetic levitation piece 5 can be levitated on the levitation magnetic stand 1 by the procedure described in the first embodiment.

FIG. 40 shows another embodiment of the magnetic levitation frame rotation driving auxiliary tool 49, which is a frame rotating machine having an electric motor inside. The internal structure is as shown in FIG. A motor 61 is provided in the main body 60, and a rotary shaft 62 is supported by the main body 60 via a speed-increasing gear so as to rotate at high speed. A flange 63 is provided on the rotary shaft 62, and a compression spring 64 is mounted on the rotary shaft 62 between the flange 63 and the bottom of the main body 60. Therefore, the rotating shaft 62 is always naturally biased upward. A push button 67 is provided on the main body 60 to come out of the main body 60 and hold the rotary shaft 62 downward. An elastic fork 65 for pinching is attached to the lower end of the rotary shaft 62 protruding downward from the main body 60. By pushing the push button 67, the elastic fork 65 is lowered a little and released from the holding portion 66 attached to the main body 60 to be opened by its own elastic force. The motor 61 can be rotationally driven by a household AC power supply or a storage battery. Now, in order to rotate the magnetic levitation piece 5, the handle 68 is grasped, the push button 67 is gradually released, and the upper end of the mandrel 7 of the magnetic levitation piece 5 is pinched by the tip of the elastic fork 65. The rotation shaft 62 of the motor 61 is driven by a switch (not shown), and the magnetic levitation piece 5 is moved while being rotated. Then, when the rotating magnetic levitation piece 5 is brought onto the levitation aid 3 and the push button 67 is pushed, the elastic fork 65 is opened and the mandrel 7 of the magnetic levitation piece 5 is opened, so that the magnetic levitation piece 5 is opened. Falls on the levitation aid 3 and continues to rotate. Although the present invention has been described above, it is needless to say that the present invention is not limited to the embodiments and various other modifications can be made without departing from the essence thereof. Although the examples have described a toy which is inexpensive and easy for anyone to operate and which has high educational consideration, it can also be used as an exhibit, an accessory, or a teaching material. It can also be used as a levitation moving body that moves the magnetic pedestal to move the magnetic levitation piece while following the movement of the magnetic pedestal while levitating. As for the magnet, both the levitating magnet and the levitating magnet have a magnetic surface as a flat surface. The levitating magnetic stand is shown as a resin outer body with a magnet embedded in it, but it is of course possible to use only a magnet. It has been repeatedly mentioned that the levitation magnet may be a polygonal plate (of course, a regular polygonal one). The levitating magnet is preferably ring-shaped or ring-shaped, but circular (disc-shaped) magnets can also be used as long as the mandrel is not newly inserted.

[0036]

[Effect of device]

 According to the magnetic levitation toy of this invention, the magnet (levitation side magnet) can be stably levitated above the magnet (levitation magnet) with a simple magnet structure. More specifically, with a simple magnet structure, the levitation magnet can be stably levitated simultaneously in a straight state without any precession or overturning in the vertical or horizontal direction using the levitation magnet. be able to.

[Brief description of drawings]

FIG. 1 is a conceptual diagram illustrating a coordinate system for defining an amount of a magnetic field at a point P in a magnetic field around a magnetic dipole (m, −m).

FIG. 2 is a conceptual diagram for explaining a magnetic shell.

FIG. 3 is a graph showing a magnetic field gradient of the present invention.

FIG. 4 is a graph showing a magnetic field gradient of the present invention.

FIG. 5 is a perspective view showing a magnetic levitation toy according to a first embodiment of the present invention.

FIG. 6 is a perspective view showing a magnetic levitation table according to the present invention.

FIG. 7 is a perspective view showing one step of the levitation method of the magnetic levitation toy according to the present invention.

FIG. 8 is a perspective view showing one step of the method of levitating the magnetic levitating toy according to the present invention.

FIG. 9 is a perspective view showing one step of the method of levitating the magnetic levitating toy according to the present invention.

FIG. 10 is a second embodiment of the magnetic levitation toy of the present invention.
FIG.

FIG. 11 is a perspective view of a magnetic levitation toy according to a second embodiment of the present invention.

FIG. 12 is a perspective view showing another embodiment of the magnetic levitation stand for the magnetic levitation toy according to the present invention.

FIG. 13 is a perspective view of a magnetic levitation table according to still another embodiment of the magnetic levitation toy of the present invention.

FIG. 14 is an oblique-axis projection view showing still another embodiment of the magnetic levitation stand according to the magnetic levitation toy of the present invention.

FIG. 15 is a perspective view of a magnetic levitation table according to another embodiment of the magnetic levitation toy of the present invention.

FIG. 16 is a perspective view of a magnetic levitation table according to still another embodiment of the magnetic levitation toy of the present invention.

FIG. 17 is a perspective view of a magnetic levitation table according to another embodiment of the magnetic levitation toy of the present invention.

FIG. 18 is an oblique-axis projection view showing still another embodiment of the magnetic levitation table for the magnetic levitation toy of the present invention.

FIG. 19 is an oblique-axis projection view showing still another embodiment of the magnetic levitation stand according to the magnetic levitation toy of the present invention.

FIG. 20 is a perspective view of a magnetic levitation table according to still another embodiment of the magnetic levitation toy of the present invention.

FIG. 21 is a perspective view of a magnetic levitation table according to still another embodiment of the magnetic levitation toy of the present invention.

FIG. 22 is a perspective view showing still another embodiment of the magnetic levitation stand according to the magnetic levitation toy of the present invention.

FIG. 23 is a perspective view showing still another embodiment of the magnetic levitation stand according to the magnetic levitation toy of the present invention.

FIG. 24 is a perspective view showing still another embodiment of the magnetic levitation table according to the magnetic levitation toy of the present invention.

FIG. 25 is a perspective view showing still another embodiment of the magnetic levitation stand according to the magnetic levitation toy of the present invention.

FIG. 26 is a perspective view of a magnetic levitation table according to still another embodiment of the magnetic levitation toy of the present invention.

FIG. 27 is a perspective view of a magnetic levitation table according to another embodiment of the magnetic levitation toy of the present invention.

FIG. 28 is a perspective view showing still another embodiment of the magnetic levitation table according to the magnetic levitation toy of the present invention.

FIG. 29 is a perspective view showing another embodiment of the levitation assisting tool for the magnetic levitation toy of the present invention.

FIG. 30 is a perspective view showing still another embodiment of the levitation assisting tool for the magnetic levitation toy of the present invention.

FIG. 31 (a) is an oblique-axis projection view showing another embodiment of the levitation side magnet relating to the magnetic levitation toy of the present invention.
FIG. 31 (b) is a side view of the levitating magnet of FIG. 31 (a).

FIG. 32 (a) is an oblique-axis projection view showing still another embodiment of the levitation side magnet relating to the magnetic levitation toy of the present invention. 32B is a side view of the levitation side magnet of FIG. 32A.

FIG. 33 (a) is an oblique-axis projection view showing still another embodiment of the levitation side magnet relating to the magnetic levitation toy of the present invention. FIG. 33 (b) is a side view of the levitation side magnet of FIG. 33 (a).

FIG. 34 (a) is an oblique-axis projection view showing still another embodiment of the levitation side magnet of the magnetic levitation toy according to the present invention. FIG. 34B is a side view of the levitation side magnet shown in FIG.

FIG. 35 (a) is an oblique-axis projection view showing still another embodiment of the levitation side magnet according to the magnetic levitation toy of the present invention. FIG. 35 (b) is a side view of the levitation side magnet of FIG. 35 (a).

FIG. 36 (a) is an oblique-axis projection view showing still another embodiment of the levitation side magnet according to the magnetic levitation toy of the present invention. FIG. 36 (b) is a side view of the levitating magnet of FIG. 36 (a).

FIG. 37 (a) is an oblique-axis projection view showing still another embodiment of the levitation side magnet relating to the magnetic levitation toy of the present invention. FIG. 37 (b) is a side view of the levitating magnet of FIG. 37 (a).

FIG. 38 (a) is a perspective view showing still another embodiment of the levitation side magnet according to the magnetic levitation toy of the present invention. 38 (b) is a side view of the levitating magnet of FIG. 38 (a).

FIG. 39 is an oblique projection view showing an embodiment of an auxiliary tool for rotating the magnetic levitation top related to the magnetic levitation toy of the present invention.

FIG. 40 is a perspective view showing another embodiment of the auxiliary tool for rotating the magnetic levitation top of the magnetic levitation toy according to the present invention.

41 is an internal structure diagram of the auxiliary tool of FIG. 40. FIG.

[0037]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Levitation magnetic stand 1A ... Collar part 1B ... Ornament part 1C ... Tunnel part 1D ... Support leg 1E ... Receiving part 2 ... Levitation magnet 3 ... Levitation auxiliary tool 4 ... Handle 5 ... Magnetic levitating piece 5A ... Shape body 5B ... frame 6 ... levitating magnet 7 ... mandrel 8, 8a, 8b ... weight adjusting ring 10 ... center hole 11 ... magnetic disk 20, 22 ... electromagnet 21 ... electric wire 29 ... level sensing means 30 ... leveling means 35 ... Center point display 40 ... Retaining ring 45 ... Ring frame 46 ... Horizontal ring frame 47 ... Bearing body 48 ... Centrifugal sesame 49 ... Magnetic levitation frame rotation drive auxiliary tool 49 50 ... Main body 51, 52 ... Beam 53, 54 ... Protrusion 55 ... Rubber rubber 60 ... Main body 61 ... Motor 62 ... Rotary shaft 63 ... Brim 64 ... Compression spring 65 ... Elastic fork 66 ... Holding part 67 ... Push button 68 ... Handle

Claims (12)

[Scope of utility model registration request] 1. A height region comprising a substantially closed periphery and a magnetized first surface surrounded by the periphery, the height region having a negative magnetic field gradient in a vertical direction perpendicular to the first surface, and Levitation magnet comprising a levitation magnet (2) whose peripheral edge is shaped so as to form a common height region in common with a height region in which a magnetic field gradient in a parallel direction parallel to the first surface is positive. Magnetic comprising a pedestal (1) and a magnetic levitation piece (5) having a levitation side magnet (6) having a second surface magnetized so that the sides facing the levitation magnet (2) have the same polarity. Levitating toy. 2. The levitating magnet (2) according to claim 1.
Is provided with a horizontal adjusting means for adjusting the first surface horizontally, and a magnetic levitation toy. 3. The levitation magnet (2) according to claim 2.
2. A magnetic levitation toy, characterized in that the magnetic levitation toy has a horizontal sensing means (29) for confirming that the first surface is horizontal. 4. A magnetic device comprising a magnetic levitation table (1) having a levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. A magnetic levitating toy consisting of a levitating piece (5). 5. A levitation magnetic stand (1) having a polygonal levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. A magnetic levitation toy comprising a magnetic levitation top (5). 6. A levitation magnetic stand (1) having a regular triangular levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same poles. ) A magnetic levitation toy comprising a magnetic levitation top (5). 7. A levitation magnetic stand (1) having a square levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. A magnetic levitation toy consisting of a magnetic levitation top (5). 8. The magnetic levitation toy according to claim 7, wherein the levitation magnet (2) is a ring-shaped magnet. 9. A levitation magnetic stand (1) having a regular hexagonal levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same polarity. ) A magnetic levitation toy comprising a magnetic levitation top (5). 10. The magnetic levitation toy according to claim 9, wherein the levitation magnet (2) is a ring-shaped magnet. 11. A levitation magnetic stand (1) having a star-shaped levitation magnet (2) and a levitation side magnet (6) magnetized so that the sides facing the levitation magnet (2) have the same poles. A magnetic levitation toy comprising a magnetic levitation top (5). 12. A magnetic levitation top for incorporating a substantially ring-shaped magnet magnetized in a plane orthogonal to a rotation axis and used for levitation in a magnetic field.