JPS6399506A - Article fixing structure - Google Patents

Abstract

PURPOSE:To enable strong fixing and easy separation by respectively generating an attraction force by causing the hetero-poles of both multipolar permanent magnet pieces to face each other and a repulsion force by causing the homo- poles to face each other. CONSTITUTION:A piece of paper (a) is applied to the board surface of a paper holding board 10, on which a paper holding block 20 is pressed in parallel with a multipolar permanent magnet piece 30A of the paper holding board 10, causing the hetero-poles of the multipolar permanent magnet pieces 30A and 30B to face each other. Hereupon, the piece of paper (a) is firmly pinched and fixed between the board surface of the paper holding board 10 and the paper holding block 20. In addition, the paper holding block 20 is slid in the direction of arranging the magnetic poles of the multipolar permanent magnet pieces 30A, 30B with the paper holding block 20 being attracted on the board surface of the board 10. Hereupon, the attraction force of the paper holding block 20 to the paper holding board 10 weakens and disappears, and when the homo-poles face each other, the paper holding block 20 will easily separate from the board surface of the board 10 as if it floats above.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an article fixing structure that attaches and detaches articles by utilizing the repulsive force between like poles of a multipolar permanent magnet and the attractive force between different poles.

[Conventional technology]

2. Description of the Related Art It is known to fix articles using the attraction force of permanent magnets. For example, you can use a metal fitting with a built-in permanent magnet piece.
Instead of attaching a piece of paper to the surface of a soft magnetic plate such as an iron plate to hold a piece of paper between the plate surface and the wire, or instead of hanging the item on a wall hanger, attach a permanent magnet to one side of the item. Practical examples include embedding pieces and adsorbing and fixing them to soft magnetic walls. In addition, if a permanent magnet piece is attached to the bottom of an item inside a vehicle such as a ship or train, such as a beverage cup, and this is placed on a table with an embedded iron piece, etc., It is possible to prevent the beverage tip from tipping over.

[Problem that the invention seeks to solve]

When removing an article that has been fixed by the attraction force of a permanent magnet, it is necessary to use a fairly strong force that resists the attraction force to pull the article away from the attraction surface.

For this reason, in the case of a beverage cup, for example, there is a risk that the beverage in the cup may spill out due to excessive force.

The more a permanent magnet piece with stronger adsorption force is used to stabilize the fixed state of the article, the stronger the force required to remove the article, and if the article is relatively soft or brittle, There is also a risk that the article may be deformed or damaged when it is removed.

The present invention has been made to solve the above problems.

[Means for solving problems]

In the article fixing structure of the present invention, a multipolar permanent magnet piece is attached to each of opposing surfaces of a fixed object and a fixed object fixed thereto, and when the fixed object is attached to and removed from the fixed object, the multipolar permanent magnet pieces of each other are attached to each other. It is characterized in that an adhesion force is generated by having different poles of the pieces facing each other, and a repulsion force is generated by having the pieces of the same pole facing each other.

[Effect]

In conventional article fixing structures using permanent magnet pieces, the permanent magnet pieces are used as magnetic poles, so it is impossible to adjust the attraction force generated between the fixed object and the fixed object.
In the fixing structure of the present invention, in which multi-polar permanent magnet pieces are attached to each of the fixed object and the fixed object, a strong attraction force can be obtained by making the different polarities of the multi-polar permanent magnet pieces face each other. When separating the fixed object from the fixed object, slide the fixed object along the magnetic pole arrangement direction of the multipolar permanent magnet while the fixed object remains attracted to the fixed object, so that the different poles face each other. By shifting the positional relationship of the two multi-pole permanent magnet pieces, the attraction force weakens or disappears, and by sliding the same poles to a position where they face each other, there is a reaction between the fixed object and the fixed object. iB force is generated. Therefore, when separating the fixed object from the fixed object, it is not necessary to apply a force strong enough to overcome the adsorption force, but only with a slight force that is sufficient to slide the fixed object along the fixed object's suction surface. The suction constraint relationship between the fixed object and the fixed object can be smoothly and easily released.

In addition, in a fixed structure in which a permanent magnet piece is incorporated as a single pole, the magnetic circuit formed at the adhesion part between the fixed object and the fixed object is in an open state in which some of the lines of magnetic force circulate in the space. When an object to be fixed is suctioned and fixed to a fixed object using the fixing structure of the present invention, as shown in FIG.
The lines of magnetic force are between adjacent poles in the multipolar permanent magnet pieces (30A) (30B) and between adjacent poles in the multipolar permanent magnet pieces (30^) (30B).
) An ideal magnetic circuit is formed in which the current circulates between the opposite poles, so a strong adsorption force and an excellently stable fixed state can be obtained thereby.

〔Example〕

To explain the fixing structure of the present invention with reference to the drawings, (10) is a fixed object, and (20) is an object to be fixed. (30A) and (30B) are multipolar permanent magnet pieces, respectively.

The fixed object (10) in FIG. 1 (1) is a gidome board,
The object to be fixed (20) is a restraining block, and an example is shown in which a restraining tool is composed of both blocks. Gidome board (
10) has an elongated plate-shaped or rod-shaped multipolar permanent magnet piece (30A) attached to its front surface. The multipolar permanent magnet piece (30A) has N poles and S poles that alternate with a constant width dimension in the longitudinal direction. On the back side of the paper holding block (20) opposite to the multipolar permanent magnet piece (30Δ) of the paper holding board (10), the multipolar permanent magnet piece (30Δ)
A multipolar permanent magnet piece (30B) in which N poles and S poles alternate with the same magnetic pole arrangement pattern as 30A) is attached. In the figure, the north pole part is shown in a dotted pattern, and the south pole part is shown in a solid color.

When holding a piece of paper in the above-mentioned holding tool, as shown in Figure 1 (Il.
] As shown in the figure, a piece of paper f is placed on the board surface of the paper stopper board (10).
Apply the a+ and from above it, the gidome block (20)
, the multipolar permanent magnet piece (30A) of the gidome board (10)
Multipolar permanent magnet piece (30A) and (30A)
By making the opposite poles of B) face each other, the piece of paper fa
) is firmly clamped and fixed between the board surface of the board (10) and the board block (20) which is attracted to the board.

To replace the piece of paper (a) between the gidome board (10) and the gidome block (20), or to add a new piece of paper (81), move the gidome block (20) to the gidome board. (10) When pulling it away from the board surface of the board (10), keep the Gidome Pro Tsuk (20) adsorbed to the board surface of the board (10) and attach the multi-polar permanent magnet piece (30A) ( 30B)
It is only necessary to slide it in the magnetic pole arrangement direction (in this case, the longitudinal direction of the magnet piece). As the paper stopper block (20) is slid, the adhesion force of the paper stopper block (20) to the paper stopper board (10) weakens and disappears, and when the same polarity faces each other, the workmanship block (20) ) is paper-bound board (
It easily separates from the board surface of the paper-bound board (10) as if it were lifted from the board surface of the board (10).

The fixed object (10) in the example of FIG. 2 is a table,
The object to be fixed (20) is a beverage cup. Cottip (20)
A disc-shaped multipolar permanent magnet piece (30B) is attached to the bottom surface of the magnet. The multi-pole permanent magnet piece (301) is magnetized alternately into north and south poles in the circumferential direction, with each of a plurality of fan-shaped areas having equally divided central angles serving as magnetic poles. The example shown in the figure shows a multipolar permanent magnet piece having a magnetic pole arrangement pattern in which N poles and S poles alternate, with eight fan-shaped regions obtained by equally dividing the plate surface with a center angle of 45° serving as magnetic poles. On the other hand, the multipolar permanent magnet pieces (30
A disk-shaped multipolar permanent magnet piece (30A) having exactly the same magnetic pole arrangement pattern as B) is attached.

Pour the beverage (b) into the beverage cup (20), place it on the plate surface of the multipolar permanent magnet piece (3 (IA)) of the table (10), and place it on the multipolar permanent magnet piece (306) and (30B). When the different poles face each other, the tip (20) is fixed in a stable upright position on the table (10) by the adhesion force between the different poles, even when the table (10) swings. , it will not fall.When picking up the kelp (20) placed on the table (10), lift the kelp (20) with its bottom surface still on the table (10). By slightly rotating the table (10) around its axis, the suction force against the table (10) disappears, and the rotation reaches a certain angle (in the example shown,
56) If you do so, you will be able to lift the tip (20) extremely smoothly and with almost no effort, with the feeling of being lifted off the table (10) due to the repulsive force generated by the opposite poles facing each other. can.

4 to 6 show examples of multipolar permanent magnet pieces used in the fixing structure of the present invention. Fig. 4 shows a rod-shaped or elongated plate-shaped multipolar permanent magnet piece used in the embodiment shown in Fig. 1, and Fig. 5 shows a disc-shaped multipolar permanent magnet piece used in the embodiment shown in Fig. 2. . As the circular multipolar permanent magnet piece, a ring-shaped piece having a hole in the center as shown in FIG. 6 may be used. Needless to say, the number of magnetic poles of these multi-pole permanent magnet pieces is not limited to the illustrated example, and depending on the usage of the fixed structure and required performance, those having a large number of further subdivided magnetic poles may be used, or On the contrary, a magnetic pole having a small number of magnetic poles, for example, only a pair of north and south poles, may be used. In addition, a set of multipolar permanent magnet pieces 30^) (30B) attached to each of the fixed object (10) and the fixed object (20) have a shape as shown in FIGS. 1 and 3. , the number of poles of one multipolar permanent magnet piece (30A) and the other multipolar permanent magnet piece (30B) does not necessarily have to be the same; for example, one multipolar permanent magnet piece (30B) has two
It may also be a combination of two multi-pole permanent magnet pieces, one with poles and the other with eight poles. It goes without saying that the type of multipolar permanent magnet piece is not limited, such as a sintered magnet or a resin magnet.

〔Effect of the invention〕

According to the fixing structure of the present invention, it is possible to firmly connect and fix the fixed object and the fixed object using the strong adsorption force generated by the ideal magnetic circuit formed between the facing multi-pole permanent magnet pieces. When breaking the bond, there is no need to apply a strong force that overcomes the adsorption force; just apply a small amount of force to slide the fixed object along the surface of the fixed object in the direction of the magnetic pole arrangement of the multi-pole permanent magnet piece. The two can be separated extremely easily and smoothly.

The fixing structure of the present invention is useful not only for fixing the above-mentioned articles, but also as a means for fixing and separating various articles in various fields or members of equipment and devices.

[Brief explanation of the drawing]

FIG. 1 CI) and (II) are perspective views showing an embodiment of the present invention, FIG. 2 CI) is a perspective view showing another embodiment of the present invention, FIG. The figure is an explanatory diagram of a magnetic circuit in the fixing structure of the present invention, and FIGS. 4 to 6 are front views showing examples of multipolar permanent magnet pieces used in the fixing structure of the present invention. 10: Fixed object, 20: Fixed object, 308, 30B: Multipolar permanent magnet piece.

Claims (1)

[Claims] (1) A multipolar permanent magnet piece is attached to each of the opposing surfaces of a fixed object and a fixed object fixed to it, and when the fixed object is attached to and removed from the fixed object, the multipolar permanent magnet pieces are different from each other. A structure for fixing an article, characterized in that an adsorption force is generated by having poles facing each other, and a repulsion force is generated by having like poles facing each other.