JPH09270318A - Soft plastic magnet sheet - Google Patents
Soft plastic magnet sheetInfo
- Publication number
- JPH09270318A JPH09270318A JP7661996A JP7661996A JPH09270318A JP H09270318 A JPH09270318 A JP H09270318A JP 7661996 A JP7661996 A JP 7661996A JP 7661996 A JP7661996 A JP 7661996A JP H09270318 A JPH09270318 A JP H09270318A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- magnet sheet
- plastic magnet
- polyisocyanate
- polyol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/08—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/083—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together in a bonding agent
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、磁力を利用する健
康機器、福祉機器、医療機器、日用品、文房具、玩具、
工業用部品などへの応用が期待される柔軟なプラスチッ
ク磁石シートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to health equipment, welfare equipment, medical equipment, daily necessities, stationery, toys, which utilize magnetic force.
The present invention relates to a flexible plastic magnet sheet which is expected to be applied to industrial parts and the like.
【０００２】[0002]
【従来の技術】柔軟な永久磁石シートとしては、永久磁
石原料粉末とゴムを混合してシート状に成形し磁化させ
たゴム磁石が市販されているが、一方の面がＮ磁極、他
の面がＳ磁極に磁化されている点では通常の磁石と同様
であり、文房具、シール（若葉マークなど）、日用品そ
の他に僅かな用途を見いだしているに過ぎない。2. Description of the Related Art As a flexible permanent magnet sheet, a rubber magnet in which raw material powder of a permanent magnet and rubber are mixed and molded into a sheet and magnetized is commercially available. One side is an N magnetic pole and the other side is a magnet. Is similar to an ordinary magnet in that it is magnetized in the S magnetic pole, and finds little use in stationery, stickers (such as Wakaba mark), daily necessities and the like.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、従来のゴム
磁石とは異なる磁気的挙動を示し、新規な用途が期待で
きる柔軟なプラスチック磁石シートを提供することを目
的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a flexible plastic magnet sheet which exhibits a magnetic behavior different from that of conventional rubber magnets and is expected to have new uses.
【０００４】[0004]
【課題を解決するための手段】本発明に関る柔軟なプラ
スチック磁石シートは、同一面に帯状のＳ磁極と帯状の
Ｎ磁極が交互に存在していることを特徴とする。A flexible plastic magnet sheet according to the present invention is characterized in that strip-shaped S magnetic poles and strip-shaped N magnetic poles are alternately present on the same surface.
【０００５】[0005]
【発明の実施の形態】本発明を添付図面により説明する
と、図１は本発明の柔軟なプラスチック磁石シートの一
つの実施態様を示す平面図、図２は図１に示した柔軟な
プラスチック磁石シートの側面図であり、柔軟なプラス
チック磁石シート１は、同一面、ここでは上面において
は左からＳ−Ｎ−Ｓ−Ｎ−Ｓ−Ｎの順に、そして下面に
おいては上面とは逆に左からＮ−Ｓ−Ｎ−Ｓ−Ｎ−Ｓの
順にに帯状のＳ磁極と帯状のＮ磁極が交互に存在してい
る。この結果、図３に示すように、隣接する帯状の反対
磁極（Ｓ−Ｎ）の間に磁束２が集中し、同じパターンで
繰り返す。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view showing an embodiment of a flexible plastic magnet sheet of the present invention, and FIG. 2 is a flexible plastic magnet sheet shown in FIG. FIG. 3 is a side view of the flexible plastic magnet sheet 1 in the same plane, here, from the left on the upper surface in the order from S-N-S-N-S-N, and on the lower surface from the left to the N from the upper surface. Band-shaped S magnetic poles and band-shaped N magnetic poles are alternately present in the order of -S-N-S-N-S. As a result, as shown in FIG. 3, the magnetic flux 2 is concentrated between the adjacent strip-shaped opposite magnetic poles (SN), and the magnetic flux 2 repeats in the same pattern.
【０００６】図４及び図５は、同一面に帯状のＳ磁極と
帯状のＮ磁極が交互に存在していることより生じる現象
を説明するための図である。磁極の配置が同じ２枚の柔
軟なプラスチック磁石シート１Ａ及び１Ｂを、図４に示
すように同一の位相で重ねた場合には、上部の磁石シー
ト１Ａの裏側の磁極（Ｎ）と、下部の磁石シート１Ｂの
表側の磁極（Ｓ）とが引きつけあって２枚のシートは密
着する。しかし図５に示すように、これら２枚の磁石シ
ートのうちの一方、例えば下部の磁石シート１Ｂを水平
方向に１ピッチ（Ｓ磁極又はＮ磁極の帯の幅）分だけず
らして異なる位相で重ねた場合には、上部の磁石シート
１Ａの裏側の磁極（Ｎ）と、下部の磁石シート１Ｂの表
側の磁極（Ｎ）とが反発しあって２枚のシートは離れ
る。下部の磁石シート１Ｂを水平方向に移動するにつれ
て、２枚の柔軟なプラスチック磁石シート１Ａ及び１Ｂ
はついたり離れたりする。このような現象は玩具などに
利用できる。FIG. 4 and FIG. 5 are diagrams for explaining a phenomenon caused by alternating existence of band-shaped S magnetic poles and band-shaped N magnetic poles on the same surface. When two flexible plastic magnet sheets 1A and 1B having the same magnetic pole arrangement are stacked in the same phase as shown in FIG. 4, the magnetic pole (N) on the back side of the upper magnet sheet 1A and the lower magnetic sheet 1A are stacked. The magnetic sheets (S) on the front side of the magnet sheet 1B are attracted to each other and the two sheets come into close contact with each other. However, as shown in FIG. 5, one of the two magnet sheets, for example, the lower magnet sheet 1B is shifted in the horizontal direction by one pitch (width of the S magnetic pole or the N magnetic pole) and overlapped at different phases. In this case, the magnetic pole (N) on the back side of the upper magnet sheet 1A and the magnetic pole (N) on the front side of the lower magnet sheet 1B repel each other, and the two sheets are separated from each other. As the lower magnet sheet 1B is moved horizontally, the two flexible plastic magnet sheets 1A and 1B are moved.
Hang on and off. Such a phenomenon can be used for toys and the like.
【０００７】帯状のＳ磁極と帯状のＮ磁極とは、必ずし
も図１に示されるような直線的な縞模様で交互に存在し
てなくても良い。使用目的によっては、例えば図６に示
すように同心円状の帯としてＳ磁極とＮ磁極が交互に存
在していても良く、或は図７に示すように円形又はドー
ナツ状のシート上に扇型の帯としてＳ磁極とＮ磁極が交
互に存在していても良い。The band-shaped S magnetic poles and the band-shaped N magnetic poles do not necessarily have to be alternately present in a linear striped pattern as shown in FIG. Depending on the purpose of use, for example, S magnetic poles and N magnetic poles may be alternately present as concentric bands as shown in FIG. 6, or as shown in FIG. 7, fan-shaped on a circular or donut-shaped sheet. The S magnetic poles and the N magnetic poles may be alternately present as the bands.
【０００８】具体的用途の例として磁気健康具が挙げら
れる。エレキバンと称される磁気健康具は、直径８ｍｍ
程度の円形のフェライト磁石を皮膚面に当て、磁力の作
用によって装着部位の血行を良くしコリをほぐす作用を
謳っているが、触感が硬く、また広い範囲に均一な磁力
を与えることができないと言う欠点がある。本発明の柔
軟なプラスチック磁石シートは広い面積にわたって均等
な磁力を与え、かつ曲面や凹凸面にも貼着できるほどに
柔軟性があるので、曲面的に構成されている人体に密着
させて使用できる。An example of a specific application is a magnetic fitness tool. Magnetic health equipment called electric van has a diameter of 8 mm.
It is said that a circular ferrite magnet of a certain degree is applied to the skin surface to improve blood circulation at the wearing site and loosen stiffness by the action of magnetic force, but it feels hard to touch and it is not possible to apply a uniform magnetic force to a wide range. There is a drawback to say. Since the flexible plastic magnet sheet of the present invention gives a uniform magnetic force over a wide area and is flexible enough to be attached to a curved surface or an uneven surface, it can be used in close contact with a curved human body. .
【０００９】本発明に関る柔軟なプラスチック磁石シー
トは、永久磁石原料粉末とポリイソシアネート及びポリ
オールを混合し、触媒を加えてポリイソシアネートとポ
リオールを反応させ、固化した後、同一面に帯状のＳ磁
極と帯状のＮ磁極が交互に存在するように磁化させる
か、或は、永久磁石原料粉末とポリイソシアネート及び
ポリオールを混合し、触媒及び発泡剤を加えてポリイソ
シアネートとポリオールを反応させ、発泡固化した後、
同一面に帯状のＳ磁極と帯状のＮ磁極が交互に存在する
ように磁化させることにより得られる。ポリイソシアネ
ートとしては、トリレンジイソシアネート（ＴＤＩ）の
ような芳香族系ポリイソシアネート、ヘキサメチレンジ
イソシアネート（ＨＤＩ）のような脂肪族系ポリイソシ
アネートのいずれでも使用できる。ポリオールとして
は、ポリプロピレングリコールのようなポリエーテルポ
リオールが好ましく用いられるが、使用目的によっては
ポリエステルポリオールを用いることもできる。触媒と
してはジブチルチンジラウレートのような有機金属系、
又はトリエチレンジアミンのような３級アミン類、発泡
剤としては水又はフルオロカーボン類を用いる。原料の
選択、使用割合、発泡条件などを選択により、任意の密
度、任意の柔軟性を有するポリウレタンベースの柔軟な
プラスチック磁石シートを製造できる。これは当業者に
とって周知の技術である。永久磁石原料粉末とポリウレ
タン原料混合物との混合比率は、永久磁石シート中の永
久磁石原料粉末が２０〜９０重量％、好ましくは３０〜
００重量％になるようにするのが良い。The flexible plastic magnet sheet according to the present invention is prepared by mixing the permanent magnet raw material powder with polyisocyanate and polyol, adding a catalyst to react the polyisocyanate and polyol, and solidifying them, and then stripping the strip-shaped S on the same surface. Magnetize so that magnetic poles and belt-shaped N magnetic poles are present alternately, or mix permanent magnet raw material powder with polyisocyanate and polyol, add catalyst and foaming agent and react polyisocyanate and polyol to foam and solidify. After doing
It is obtained by magnetizing so that strip-shaped S magnetic poles and strip-shaped N magnetic poles are alternately present on the same surface. As the polyisocyanate, either an aromatic polyisocyanate such as tolylene diisocyanate (TDI) or an aliphatic polyisocyanate such as hexamethylene diisocyanate (HDI) can be used. As the polyol, a polyether polyol such as polypropylene glycol is preferably used, but a polyester polyol can also be used depending on the purpose of use. As a catalyst, an organometallic system such as dibutyltin dilaurate,
Alternatively, tertiary amines such as triethylenediamine and water or fluorocarbons are used as the foaming agent. A polyurethane-based flexible plastic magnet sheet having an arbitrary density and an arbitrary flexibility can be produced by selecting a raw material, a use ratio, a foaming condition and the like. This is a technique well known to those skilled in the art. The mixing ratio of the permanent magnet raw material powder and the polyurethane raw material mixture is 20 to 90% by weight, preferably 30 to 90% by weight of the permanent magnet raw material powder in the permanent magnet sheet.
It is better to set it to 00% by weight.
【００１０】[0010]
【発明の効果】従来のゴム磁石とは異なる磁気的挙動を
示し、新規な用途が期待できる柔軟なプラスチック磁石
シートが得られる。EFFECT OF THE INVENTION It is possible to obtain a flexible plastic magnet sheet which exhibits magnetic behavior different from that of conventional rubber magnets and can be expected to be used for new purposes.
【図１】柔軟なプラスチック磁石シートの一つの実施態
様を示す平面図である。FIG. 1 is a plan view showing one embodiment of a flexible plastic magnet sheet.
【図２】図１に示した柔軟なプラスチック磁石シートの
側面図である。FIG. 2 is a side view of the flexible plastic magnet sheet shown in FIG.
【図３】図２に示した柔軟なプラスチック磁石シートの
磁束を示す図である。FIG. 3 is a diagram showing magnetic flux of the flexible plastic magnet sheet shown in FIG. 2.
【図４】２枚の柔軟なプラスチック磁石シートを同一の
位相で重ねた場合の相互の位置関係（密着）を示す側面
図である。FIG. 4 is a side view showing a mutual positional relationship (adhesion) when two flexible plastic magnet sheets are stacked in the same phase.
【図５】２枚の柔軟なプラスチック磁石シートを異なる
位相で重ねた場合の相互の位置関係（反発）を示す側面
図である。FIG. 5 is a side view showing a mutual positional relationship (repulsion) when two flexible plastic magnet sheets are stacked in different phases.
【図６】柔軟なプラスチック磁石シートの異なる実施態
様を示す平面図である。FIG. 6 is a plan view showing a different embodiment of a flexible plastic magnet sheet.
【図７】柔軟なプラスチック磁石シートの異なる実施態
様を示す平面図である。FIG. 7 is a plan view showing a different embodiment of a flexible plastic magnet sheet.
１ 柔軟なプラスチック磁石シート １Ａ 第１の柔軟なプラスチック磁石シート １Ｂ 第２の柔軟なプラスチック磁石シート ２ 磁束 1 Flexible Plastic Magnet Sheet 1A 1st Flexible Plastic Magnet Sheet 1B 2nd Flexible Plastic Magnet Sheet 2 Magnetic Flux
Claims (3)
交互に存在していることを特徴とする柔軟なプラスチッ
ク磁石シート。1. A flexible plastic magnet sheet having strip-shaped S magnetic poles and strip-shaped N magnetic poles alternately present on the same surface.
及びポリオールを混合し、触媒を加えてポリイソシアネ
ートとポリオールを反応させ、固化した後、同一面に帯
状のＳ磁極と帯状のＮ磁極が交互に存在するように磁化
させたものである請求項１に記載の柔軟なプラスチック
磁石シート。2. A permanent magnet raw material powder is mixed with polyisocyanate and a polyol, a catalyst is added to react the polyisocyanate and the polyol, and after solidification, strip-shaped S magnetic poles and strip-shaped N magnetic poles are alternately present on the same surface. The flexible plastic magnet sheet according to claim 1, which is magnetized to
及びポリオールを混合し、触媒及び発泡剤を加えてポリ
イソシアネートとポリオールを反応させ、発泡固化した
後、同一面に帯状のＳ磁極と帯状のＮ磁極が交互に存在
するように磁化させたものである請求項１に記載の柔軟
なプラスチック磁石シート。3. A permanent magnet raw material powder is mixed with polyisocyanate and a polyol, a catalyst and a foaming agent are added to react the polyisocyanate and the polyol, and after foaming and solidification, a strip-shaped S magnetic pole and a strip-shaped N magnetic pole are formed on the same surface. The flexible plastic magnet sheet according to claim 1, wherein the flexible plastic magnet sheets are magnetized so that the magnets alternate with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7661996A JPH09270318A (en) | 1996-03-29 | 1996-03-29 | Soft plastic magnet sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7661996A JPH09270318A (en) | 1996-03-29 | 1996-03-29 | Soft plastic magnet sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09270318A true JPH09270318A (en) | 1997-10-14 |
Family
ID=13610374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7661996A Pending JPH09270318A (en) | 1996-03-29 | 1996-03-29 | Soft plastic magnet sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09270318A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7128798B2 (en) | 2000-11-26 | 2006-10-31 | Magaetnotes, Ltd. | Magnetic substrates, composition and method for making the same |
| US7338573B2 (en) | 2000-11-26 | 2008-03-04 | Magnetnotes, Ltd. | Magnetic substrates with high magnetic loading |
| US9028951B2 (en) | 2013-09-10 | 2015-05-12 | Magnetnotes, Ltd. | Magnetic receptive printable media |
| WO2016002491A1 (en) * | 2014-07-03 | 2016-01-07 | 東洋ゴム工業株式会社 | System for detecting deformation of cushion pad and process for producing same |
| WO2018096843A1 (en) * | 2016-11-22 | 2018-05-31 | 株式会社Ｎｔｔドコモ | Connection structure |
-
1996
- 1996-03-29 JP JP7661996A patent/JPH09270318A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7128798B2 (en) | 2000-11-26 | 2006-10-31 | Magaetnotes, Ltd. | Magnetic substrates, composition and method for making the same |
| US7338573B2 (en) | 2000-11-26 | 2008-03-04 | Magnetnotes, Ltd. | Magnetic substrates with high magnetic loading |
| US9028951B2 (en) | 2013-09-10 | 2015-05-12 | Magnetnotes, Ltd. | Magnetic receptive printable media |
| WO2016002491A1 (en) * | 2014-07-03 | 2016-01-07 | 東洋ゴム工業株式会社 | System for detecting deformation of cushion pad and process for producing same |
| JP2016014637A (en) * | 2014-07-03 | 2016-01-28 | 東洋ゴム工業株式会社 | Cushion pad deformation detection system and cushion pad deformation detection system manufacturing method |
| CN106796096A (en) * | 2014-07-03 | 2017-05-31 | 东洋橡胶工业株式会社 | Detect the system and its manufacture method of the deformation of cushion pad |
| WO2018096843A1 (en) * | 2016-11-22 | 2018-05-31 | 株式会社Ｎｔｔドコモ | Connection structure |
| JPWO2018096843A1 (en) * | 2016-11-22 | 2019-07-25 | 株式会社Ｎｔｔドコモ | Connected structure |
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