JP2022006547A - Magnetic force device - Google Patents

Abstract

To provide a magnetic force device for exhibiting a motion maintaining function more excellent than a conventional magnetic force device.SOLUTION: A magnetic force device 100 includes: a stationary magnet 10 mounted on prescribed fixing means; and a movable magnet 20 arranged movably within a magnetic force influencing area of the stationary magnet 10 along a fixed direction (an arrow A direction). Shapes of the stationary magnet 10 and the fixed magnet 20 are arranged so as to form shapes (the stationary magnet 10 forms a "<" shape, and the movable magnet 20 forms a ">" shape) in which an N pole and an S pole are bent in a direction of coming close to each other with inflection parts 11, 21 between respective N poles and S poles as a boundary, and the movable magnet 20 is arranged so as to move toward the inflection part 11 of the fixed magnet 10 from a virtual straight line 12 side connecting the N pole and the S pole of the fixed magnet 10 with a virtual straight line 22 side connecting the N pole and the S pole of the movable magnet at the head.SELECTED DRAWING: Figure 1

Description

The present invention relates to a magnetic force device capable of maintaining a predetermined motion state for a long period of time by utilizing magnetic force.

The present inventor has been researching and developing a motion device using magnetic force for many years, and has filed various patent applications. As a prior application related to the present invention, for example, Patent Document 1 is described. There is also a "magnetic force device".

The "magnetic force device" described in Patent Document 1 is a columnar fixed magnet attached to a disk-shaped fixing means, and a fixed magnet in a fixed direction along a virtual circle in a magnetic force influence region of the fixed magnet centered on a support shaft. It is equipped with a columnar movable magnet that is rotatably arranged, and the support shaft and the movable magnet are connected by an arm.

When a force that rotates in a certain direction along a virtual circle is applied to a movable magnet, the movable magnet is given an urging force from the fixed magnet by passing through the magnetic force influence region of the fixed magnet, so that the movable magnet can be used for a long time. The rotational movement can be maintained throughout.

Japanese Unexamined Patent Publication No. 2017-218967

The "magnetic force device" described in Patent Document 1 exhibits an excellent motion maintenance function, but further improvement of the motion maintenance function is an important solution problem in the future, and in order to realize it, it is necessary to achieve it. It is necessary to weaken the repulsive force that the movable magnet receives from the fixed magnet in the process of the movable magnet moving in a certain direction approaching the fixed magnet, and to increase the urging force that the movable magnet receives from the fixed magnet in the process of moving away from the fixed magnet. be.

Therefore, an object to be solved by the present invention is to provide a magnetic force device that exhibits a motion maintenance function superior to that of a conventional magnetic force device.

The magnetic force measures according to the present invention include a fixed magnet attached to a predetermined fixing means and a movable magnet arranged so as to be movable in a certain direction within the magnetic force influence region of the fixed magnet.
The shapes of the fixed magnet and the movable magnet are curved or curved in the direction in which the N pole and the S pole approach each other with the bending portion between the N pole and the S pole as a boundary. ,
The movable magnet moves from the virtual straight line side connecting the N pole and the S pole of the fixed magnet toward the curved portion of the fixed magnet, with the virtual straight line side connecting the N pole and the S pole at the beginning. It is characterized by being arranged so as to do.

In the magnetic force device, a virtual fixed triangle having a virtual base connecting the north pole and the south pole of the fixed magnet and a virtual apex of the curved portion is connected to the north pole and the south pole of the movable magnet. A virtual movable triangle whose virtual base is a virtual straight line and whose variable portion is a virtual vertex can be arranged so as to be parallel to each other.

In the magnetic force device, the cross section of the fixed magnet and the movable magnet may have a circular shape, and both ends thereof may have a convex curved surface shape.

In the magnetic force device, a hollow body made of a magnetic material can be arranged at at least one of the end portions of the fixed magnet or the movable magnet.

In the magnetic force device, the shapes of the fixed magnet and the movable magnet can be "<" shape or "⊂" shape.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a magnetic force device that exhibits a motion maintenance function superior to that of a conventional magnetic force device.

It is a partially omitted plan view which shows the magnetic force apparatus which is an embodiment of this invention. It is a partially omitted plan view which shows the rotation maintenance apparatus using the magnetic force apparatus shown in FIG. It is a partially omitted plan view which shows the magnetic force apparatus which is another embodiment. It is a partially omitted plan view which shows the magnetic force apparatus which is another embodiment.

Hereinafter, the magnetic force devices 100, 200, and 300 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. Reference numerals N and S shown in FIGS. 1 to 4 indicate the polarities of the respective magnetic poles.

First, the magnetic force device 100 will be described with reference to FIG. As shown in FIG. 1, the magnetic force device 100 is arranged so as to be movable along a fixed direction (arrow line A direction) in a fixed magnet 10 attached to a predetermined fixing means and a magnetic force affected region of the fixed magnet 10. It also has a movable magnet 20. The fixed magnet 10 and the movable magnet 20 have a shape in which the north pole and the south pole are bent in a direction in which the north pole and the south pole approach each other with the bending portions 11 and 21 between the north pole and the south pole as boundaries. ..

Specifically, the fixed magnet 10 has an "<" shape, and the movable magnet 20 has an ">" shape. Further, the variable portion of the fixed magnet 10 is headed from the virtual straight line 22 side connecting the N pole and the S pole of the movable magnet 20 and from the virtual straight line 12 side connecting the N pole and the S pole of the fixed magnet 10. It is arranged to move toward 11.

Further, a virtual fixed triangle 13 having a virtual base 12 connecting the N pole and the S pole of the fixed magnet 10 as a virtual base and a virtual apex 11 as a virtual vertex, and a virtual straight line 22 connecting the N pole and the S pole of the movable magnet. A virtual movable triangle 23 having a virtual base and a variable portion 21 as a virtual vertex is arranged so as to be parallel to each other. Further, the cross-sectional shapes of the fixed magnet 10 and the movable magnet 20 have a circular shape, respectively, and both end portions 14, 15, 24, and 25 have a convex curved surface shape (hemispherical shape).

The fixed magnet 10 and the movable magnet 20 have two magnet units 3 and 3 formed by attracting a plurality of disk magnets 1 in a laminated manner to form a columnar shape and attracting hemispherical magnets 2 and 2 to both ends thereof. It is formed by arranging so as to form a "shape" or ">" shape and joining with a joining member 4 made of a magnetic material, but the present invention is not limited to this. The magnetic material is a material having a property of being attracted to a magnet.

In the magnetic force device 100 shown in FIG. 1, when a force in the arrow A direction is applied to the movable magnet 20 located on the right side of the fixed magnet 10, the movable magnet 20 approaches the fixed magnet 10 with the virtual straight line 22 at the head. However, since the fixed magnet 10 has an "<" shape and the movable magnet 20 has an ">" shape, the repulsive force that the movable magnet 20 receives from the fixed magnet 10 is extremely small, and the movable magnet is a movable magnet. 20 is smoothly attracted toward the fixed magnet 10 along the attraction zone.

When the ends 24 and 25 of the movable magnet 20 that have moved toward the fixed magnet 10 pass over the ends 14 and 15 of the fixed magnet 10, respectively, the movable magnet 20 enters the repulsion zone and is powerful from the fixed magnet 10. Since the repulsive force (urging force) is received, the movable magnet 20 moves in the direction away from the fixed magnet 10 along the extension direction of the arrow line A. Therefore, if a plurality of fixed magnets 10 are arranged at a predetermined distance from each other, the movable magnet 20 can maintain the motion of moving along the arrangement direction of the fixed magnets 10 for a long time.

FIG. 2 shows a rotation maintaining device 50 using the magnetic force device 100 shown in FIG. A bearing member 53 in which a plurality of fixed magnets 10 are arranged so as to form a circle at a certain distance from a support shaft 52 erected on a flat plate-shaped fixing member 51 and rotatably supported by the support shaft 52. A plurality of bar members 54 are radially attached to the periphery of the bar member 54, and a movable magnet 20 is attached to the tip of each bar member 54.

The plurality of movable magnets 20 are arranged in the magnetic field influence region of the plurality of fixed magnets 10 arranged at equal intervals along a virtual circle (not shown) centered on the support shaft 52 in the arrangement direction of the plurality of fixed magnets 10. It is rotatable about the support shaft 52 along the line. Therefore, when a rotational force in the arrow B direction is applied to the movable magnet 20, the movable magnet 20 receives an urging force in the arrow B direction each time it passes through the magnetic force affected region of the fixed magnet 10 due to the action shown in FIG. Therefore, the plurality of movable magnets 20 can maintain the rotational movement around the support shaft 52 for a long time.

Next, the magnetic force device 200 will be described with reference to FIG. In the magnetic force device 200 shown in FIG. 3, the parts common to the constituent parts of the magnetic force device 100 shown in FIG. 1 are designated by the same reference numerals as those in FIG. 1 and the description thereof will be omitted.

In the magnetic force device 200, a spherical hollow body 16 made of a magnetic material is arranged on one end 14 (end on the magnetic pole N side) of the fixed magnet 10, and one end 25 (magnetic pole) of the movable magnet 20 is arranged. A spherical hollow body 26 made of a magnetic material is arranged at the end on the S side).
By arranging the hollow body 16 at the end 14 of the fixed magnet 10 and arranging the hollow body 26 at the end 25 of the movable magnet 20, the end 14 and the movable magnet 20 are arranged when the movable magnet 20 approaches the fixed magnet 10. Since the magnetic force in the counter-force direction generated from the end portion 25 can be relaxed, it is effective in improving the motion maintenance action.

Next, the magnetic force device 300 will be described with reference to FIG. In the magnetic force device 300 shown in FIG. 4, the parts common to the constituent parts of the magnetic force device 100 shown in FIG. 1 are designated by the same reference numerals as those in FIG. 1 and the description thereof will be omitted.

The magnetic force device 300 includes a fixed magnet 30 having a “⊂” shape and a movable magnet 20 having a “>” shape. A plurality of projecting piece-shaped mounting plates 31 with holes made of a non-magnetic material are provided on a part of the outer periphery of the movable magnet 20 and the fixed magnet 30. The fixed magnet 30 has a shape curved in a direction in which the N pole and the S pole approach each other with the bending portion 32 between the N pole and the S pole as a boundary.

The straight line portion (the portion closer to the ends 34 and 35) of the fixed magnet 30 having a “⊂” shape is formed by magnet units 7 and 7 composed of a plurality of disc magnets 1 and hemispherical magnets 2, respectively, and the fixed magnet 30 is curved. The portion is formed by closely arranging a plurality of magnet units 5 and 5 having a curved egg shape along the curved shape of the joining member 6 inside the cylindrical joining member 6 curved in a semicircular shape. The joining member 6 is made of a magnetic material, and the fixed magnets 30 having a “⊂” shape are formed by fixing the ends 36 and 37 of the magnet units 7 and 7 so as to close the openings at both ends of the joining member 6. Is formed.

In the magnetic force device 300 shown in FIG. 4, when a force in the arrow A direction is applied to the movable magnet 20 located on the right side of the fixed magnet 30, the movable magnet 20 approaches the fixed magnet 30, but the fixed magnet 30 Is arranged in a "⊂" shape and the movable magnet 20 is arranged in a ">" shape, so that the repulsive force received by the movable magnet 20 from the fixed magnet 30 is extremely small, and the movable magnet 20 is along the attraction zone. It is smoothly attracted by the fixed magnet 30.

When the ends 24 and 25 of the movable magnet 20 that have moved toward the fixed magnet 30 pass over the ends 34 and 35 of the fixed magnet 30, respectively, the movable magnet 20 enters the repulsion zone and is powerful from the fixed magnet 30. Since the repulsive force (urging force) is received, the movable magnet 20 moves in the direction away from the fixed magnet 30 along the extension direction of the arrow line A. Therefore, if a plurality of fixed magnets 30 are arranged at a predetermined distance from each other, the movable magnet 20 can maintain the motion of moving along the arrangement direction of the fixed magnets 30 for a long time.

The magnetic force devices 100, 200, and 300 described with reference to FIGS. 1 to 4 exemplify the magnetic force devices according to the present invention, and the magnetic force devices according to the present invention are the above-mentioned magnetic force devices 100, 200, 300. Not limited to.

The magnetic force device according to the present invention can be widely used in various industrial fields that require maintaining a constant motion state for a long period of time.

1 Disc magnet 2 Hemispherical magnet 3,5,7 Magnet unit 4,6 Joining member 10,30 Fixed magnet 11,21,32 Curved part 12,22 Virtual straight line 13 Virtual fixed triangle 23 Virtual movable triangle 14,15,24 , 25, 34, 35, 36, 37 Ends 16, 26 Hollow body 31 Mounting plate 20 Movable magnet 50 Rotation maintenance device 51 Fixing member 52 Support shaft 53 Bearing member 54 Bar material 100, 200, 300 Magnetic device

Claims (5)

A fixed magnet attached to a predetermined fixing means and a movable magnet arranged so as to be movable in a certain direction within the magnetic force influence region of the fixed magnet are provided.
The shapes of the fixed magnet and the movable magnet are curved or curved in the direction in which the N pole and the S pole approach each other with the bending portion between the N pole and the S pole as a boundary. ,
The movable magnet moves from the virtual straight line side connecting the N pole and the S pole of the fixed magnet toward the curved portion of the fixed magnet, with the virtual straight line side connecting the N pole and the S pole at the beginning. A magnetic device arranged to do so. The virtual fixed triangle connecting the N pole and the S pole of the fixed magnet is the virtual base, and the virtual fixed triangle having the variable portion as the virtual vertex and the virtual straight line connecting the N pole and the S pole of the movable magnet are the virtual bases. The magnetic force device according to claim 1, wherein the virtual movable triangle having the variable portion as a virtual vertex is arranged so as to be parallel to each other. The magnetic force device according to claim 1 or 2, wherein the fixed magnet and the movable magnet have a circular cross section and both ends thereof have a convex curved surface shape. The magnetic force device according to any one of claims 1 to 3, wherein a hollow body made of a magnetic material is arranged at at least one of the ends of the fixed magnet or the movable magnet. The magnetic force device according to any one of claims 1 to 4, wherein the fixed magnet and the movable magnet have a "<" shape or a "⊂" shape.

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