JPH08730Y2 - Porcelain - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a magnet having a structure in which a magnetic body is fitted in a case.

[Prior Art] Conventionally, when carrying a large number of magnets in which a magnetic body is fitted in a case, usually, a plurality of magnets are stacked,
The magnets were magnetically attached to each other by the attractive magnetic force generated between the magnets adjacent to each other to form a unit of packing.

[Problems to be solved by the invention] However, in the case of the above-mentioned packaging, when the attractive magnetic force generated between the magnets becomes strong, the magnets are strongly magnetically attached and the magnetically attached interface with the adjacent magnet is in an excessively close contact state. Therefore, when disassembling the package, there is a problem that it takes time to separate each magnet from the package state by hand to separate the magnets into individual magnets.

Here, if the magnet is, for example, a rectangular trapezoid, rotate the topmost magnet that is to be separated from the packing state by about 90 ° with respect to the lower magnet to reduce the contact area between the magnets. It is possible to relax the magnetically attached state, but in contrast,
When the magnets are disk-shaped, the contact area between both magnets cannot be reduced by the above-mentioned rotation operation, so there was a problem that the separation work of each magnet became extremely difficult when disassembling the package. .

 An object of the present invention is to solve the above problem.

[Means for Solving the Problems] In order to solve the above problems, the magnet of the present invention is a magnet in which a magnetic material is fitted in a case having a bottom plate and side plates, and a plurality of the above-mentioned magnets are provided on the outer surface of the bottom plate. When the magnets are stacked, a gap is formed between the magnetic body and the bottom plate of the case placed on the magnetic body, and an appropriate number of magnets for weakening the magnetic cohesive force between the adjacent magnets. The protrusion is provided in a protruding manner.

[Operation] When a plurality of magnets, each having a magnetic body fitted in the case, are stacked to form one unit of packing, an appropriate number of protrusions projecting on the outer surface of the bottom plate of the case are provided between the magnets. By interposing the magnets between them, the magnets are held in a state of being separated from each other by an interval corresponding to the height of the protrusion, to weaken the magnetic cohesive force between adjacent magnets and reduce the contact area between the magnets.

[Embodiment] Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

The magnet M is formed by fitting a magnetic body 1 having magnetism into an iron case 2.

The magnetic body 1 is formed in a rectangular trapezoidal shape, for example, by a permanent magnet. In this example, the magnetic body 1 has an N pole on the exposed surface 1a exposed from the case 2, and an S pole on the lower surface in the case 2 on the side opposite to the exposed surface 1a. Therefore, when the two magnets M are superposed, they repel each other when the surfaces having the same polarity are brought close to each other, and the phases are attracted when the surfaces having the different polarities are brought close to each other.

The case 2 is a rectangular plate-shaped bottom plate 3 that covers the lower surface of the magnetic body 1.
And a pair of side plates 4, 4 which are erected on both side edges of the bottom body 3 are continuously provided to form a vertical cross section.

On the outer surface 3a of the bottom plate 3 of the case 2, four projecting protrusions 5 each having a sharp tip are integrally provided. In this example,
Each protrusion 5 is formed during press molding of the case 2.

Then, when a large number of magnets M are magnetically attached to form one unit of the package, each magnet M is stacked so that the opposite polarities of the magnetic bodies 1 of the adjacent magnets M face each other. . That is, in the package, all the magnets M are oriented in the same direction, and, for example, the exposed surface 1a of the magnetic body 1 is exposed.
Are stacked with facing up. Therefore, in the package, the exposed surface 1a of the magnetic body 1 of the lower magnet M and the magnet M
Of the upper magnet M placed on the magnetic body 1 and the bottom plate 3 of the case 2 with a gap 6 corresponding to the height of the protrusion 5.
But each is expressed.

In order to improve the stability when the magnets M are stacked, the four protrusions 5 are formed at substantially the same height and are arranged near the four corners of the outer surface 3a of the bottom plate 3, respectively.

 Next, the operation of the above configuration will be described.

In the magnet M, the exposed surface 1a of the magnetic body 1 has a strong N-pole side magnetism. On the other hand, the outer surface 3a of the bottom plate 3 of the case 2 and the protrusion 5
However, it is slightly magnetized by the magnetism on the S pole side of the lower surface of the magnetic body 1 having a polarity different from that of the exposed surface 1a of the magnetic body 1.

In the packing form in which a plurality of magnets M are stacked, each magnet M is
Among the adjacent magnets M, the exposed surface 1a of the magnetic body 1 of the lower magnet M and the outer surface 3a of the bottom plate 3 of the case 2 of the upper magnet M face each other, and the protrusions 5 are provided between the magnets M, respectively. The interstices 6 form the gaps 6, respectively. As a result, the distance between the magnets M is widened, whereby the magnets M are magnetically attached to the adjacent magnets M by the weakened magnetic attraction force and the stacked state is maintained.

Further, in the packing state, each magnet M is 4 above the exposed surface 1a of the magnetic body 1 of the magnet M and the upper magnet M.
Since the protrusions 5 are held in a point contact state in which they are in contact with each other only through the tips, the exposed surface 1a of the magnetic body 1 of the lower magnet M of the adjacent magnets M and the case 2 of the upper magnet M The outer surface 3a of the bottom plate 3 is held in a separated non-contact state.

As a result, when the packaging is disassembled and the magnets M are to be separated again, the peeling force required to dissociate the magnetized state between the magnets M can be significantly reduced. Therefore, prior to peeling off the magnet M from the packed state, it is possible to omit the operation necessary for relaxing the magnetic force between the magnets M. For example, by holding the uppermost magnet M on both side plates 4 and 4 of the case 2 with fingertips and pulling it up lightly, the magnetized state of the magnets M is dissociated,
It becomes possible to peel it off individually. Alternatively, the gaps 6 formed between the magnets M are used to hang the fingertips on both side edges of the bottom plate 3 of the case 2, and the magnets M are flipped up one after another so as to be peeled off quickly. can do.

According to the present example, in a packing form in which a plurality of magnets M are stacked, the magnets M are magnetically attached to each other by the attracting magnetic force weakened by the gap 6, so that even if each magnetic body 1 has a strong magnetic force, It is possible to weaken the magnetic attraction force acting between the magnets M, which makes it possible to omit an operation procedure for relaxing the excessive magnetic attraction force between the magnets M when disassembling the package. The magnetically adhered state between the magnets M can be easily dissociated with a small peeling force as it is, and the packing form can be disassembled efficiently.

Moreover, according to this example, in the operation of peeling the magnets M from the packed state, the gaps 6 formed between the magnets M are used to continuously peel the magnets M one by one. Thus, the work of disassembling the packing form can be performed more quickly and easily.

Further, according to this example, the case 2 is strongly magnetically attached to the magnetic body 1 fitted in the case 2 by the attractive magnetic force exerted by the magnetic body 1, but In the state,
The case 2 is arranged on the lower side of the case 2 and the tip of the protrusion 5 comes into contact with the magnetic body 1 so as to be magnetically attached to the magnetic body 1 by the suction 0 force weakened by the gap 6. Magnet M
It is possible to eliminate the problem that the case 2 is separated from the magnetic body 1 inside by being attracted by the magnetic body 1.

In addition, the case 2 is not necessarily made entirely of iron,
For example, the case is made of non-magnetizable material such as plastic, and the material that can be magnetized is used only for the part to be magnetized, such as the inner surface of the bottom plate of the case or the tip of the protrusion. May be

In this example, the exposed surface 1a of the magnetic body 1
The four projecting protrusions 5 are in point contact with each other, but other than this, for example, by providing the protrusions in the shape of ridges having a mountain-shaped cross section, the ridges are formed when the product is in a package shape. Even if the tips of the magnetic field lines come into line contact with the magnetic bodies of the adjacent magnets, the magnetic force acting between the magnet phases 0 can be similarly weakened.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6.

In this example, the disk-shaped magnetic body 1A is fitted inside the iron case 2A in which the disk-shaped bottom plate 3A and the annular side plate 4A are connected in series, and the bottom plate 3A of the case 2A is Exterior 3Aa
In the vicinity of the peripheral edge, four projecting protrusions 5A are provided at substantially equal intervals.

In the packing form in which a plurality of magnets M are stacked, each magnet M does not substantially contact the adjacent magnets M but makes point contact with each other through the tips of the protrusions 5A, and between the magnets M. It is magnetized by the weakened magnetic attraction force that acts on.

Therefore, even if the shape of the magnetic body 1A is disc-shaped as in the present example, the magnetically attached state between the magnets M can be easily dissociated as it is to disassemble the package.

The rest of the configuration, action and effect are the same as in the first embodiment, so the explanation is omitted.

[Effect of the Invention] According to the present invention, the magnetic force acting between the stacked magnets can be weakened to form a package in which the magnetized state between the magnets is relaxed. When disassembling, the magnetized state of each magnet can be easily disassembled as it is, regardless of the strength and weakness of the magnetic force of the magnetic body of each magnet and the shape of the magnetic body. The individual magnets can be peeled off efficiently, and the work of disassembling the packing form can be speeded up and the work efficiency can be improved.

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view of a magnet, FIG. 2 is a rear view of the magnet, and FIG. 3 is a III-III line of FIG. A sectional view, FIG. 4 is a side view of a package in which magnets are stacked, and FIGS. 5 and 6 show a second embodiment of the present invention. FIG. 5 is an exploded perspective view of magnets. The figure is a side view of a package in which magnets are stacked. 1.1A …… Magnetic material 2,2A …… Case 3,3A …… Bottom plate 4,4A …… Side plate 5,5A …… Projection 6,6A …… Gap M …… Magnet

Claims (1)

[Scope of utility model registration request] 1. A magnet in which a magnetic body is fitted in a case having a bottom plate and a side plate. When a plurality of the magnets are stacked on the outer surface of the bottom plate, the magnetic body and the magnetic body A magnet, characterized in that a gap is formed between the case and the bottom plate of the case to be mounted, and a suitable number of protrusions for weakening the magnetic attraction force between adjacent magnets are provided in a protruding manner.