JPS6139722B2 - - Google Patents
Info
- Publication number
- JPS6139722B2 JPS6139722B2 JP10147583A JP10147583A JPS6139722B2 JP S6139722 B2 JPS6139722 B2 JP S6139722B2 JP 10147583 A JP10147583 A JP 10147583A JP 10147583 A JP10147583 A JP 10147583A JP S6139722 B2 JPS6139722 B2 JP S6139722B2
- Authority
- JP
- Japan
- Prior art keywords
- ferromagnetic
- ferromagnetic plate
- magnet
- plate
- protrusion
- 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.)
- Expired
Links
- 230000005294 ferromagnetic effect Effects 0.000 claims description 82
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 229910001369 Brass Inorganic materials 0.000 description 6
- 239000010951 brass Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001047 Hard ferrite Inorganic materials 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
- H01F7/0263—Closures, bags, bands, engagement devices with male and female parts
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Buckles (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は永久磁石を利用した止具、就中硬質
磁性粉末を含有するプラスチツク磁石を利用した
新しい止具構造体の開示に係わるものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a new fastener structure using a permanent magnet, particularly a plastic magnet containing hard magnetic powder. .
（従来技術）
而して、従前のこの種の永久磁石を利用した止
具類に於いては磁石の製作コストあるいは磁石の
脆さ等の関係より一般的には磁石を真鍮カバー等
をもつて被覆し、同時にこの真鍮カバーにより永
久磁石の一方の磁極面への強磁性板を取付けるた
めの止着手段としたものがあつた。(Prior art) Therefore, in conventional fasteners using this type of permanent magnet, due to the manufacturing cost of the magnet or the fragility of the magnet, it is generally not necessary to cover the magnet with a brass cover or the like. At the same time, this brass cover was used as a fixing means for attaching a ferromagnetic plate to one magnetic pole face of a permanent magnet.
（発明が解決しようとする問題点）
しかし乍ら、かゝる真鍮カバー等による止具構
造は部品コストが増嵩すると共に組み付け製作コ
ストを多分に要するという欠点と、組み付け真鍮
カバー等が係脱する強磁性板との間に相互に磁気
的空隙を発生し、これが吸着力を著しく減殺した
ものである。(Problems to be Solved by the Invention) However, such a stopper structure using a brass cover, etc. has the drawbacks that the parts cost increases and the assembly production cost is considerable, and the assembled brass cover, etc. A mutual magnetic gap is generated between the ferromagnetic plate and the ferromagnetic plate, which significantly reduces the attraction force.
又、かゝる真鍮カバー等による一般的な組み付
けに於いては強磁性板等の止着部分の緩みを往々
にして誘起し、このため使用するに従つて止具の
脱落あるいは強磁性板と磁石とのガタツキが発生
しやすい等の問題点があつた。 In addition, in general assembly using such brass covers, etc., the fastening parts of the ferromagnetic plates often become loose, and as a result, as they are used, the fasteners may fall off or the ferromagnetic plates may become loose. There were problems such as easy rattling with the magnet.
（問題点を解決するための手段）
本発明はこのような従前止具に於ける不都合に
鑑み特に提案されたものであつて、磁石をプラス
チツク磁石とし、このプラスチツク磁石に於ける
良好な成形特性に着眼して叙上真鍮カバーを省略
し、該カバーによる磁石の保護並びに部品組付け
の不都合を一挙に解消したものであり、硬質磁性
粉末を有する合成樹脂製の永久磁石１の一方の磁
極面ｂの側に強磁性板２が埋設されており、且つ
該強磁性板２に向けて他方の磁極面ａから孔１ａ
が開設されていると共に、前記永久磁石１の磁極
面ａに吸着される強磁性板３と前記強磁性板２と
の両方又はいずれか一方から突設される強磁性突
起２ａ，３ａが前記孔１ａ内で相互に、又は前記
強磁性板２又は３に着脱自在に吸着されるように
したものである。(Means for Solving the Problems) The present invention was specifically proposed in view of the disadvantages of the conventional fasteners, and it uses a plastic magnet as a magnet, and has good molding characteristics of the plastic magnet. With this in mind, the above-mentioned brass cover is omitted, and the protection of the magnet by the cover and the inconvenience of assembling parts are eliminated at once. A ferromagnetic plate 2 is buried on the side b, and a hole 1a is opened from the other magnetic pole face a toward the ferromagnetic plate 2.
is opened, and ferromagnetic protrusions 2a, 3a protruding from either or both of the ferromagnetic plate 3 and the ferromagnetic plate 2, which are attracted to the magnetic pole surface a of the permanent magnet 1, are opened in the hole. They are adapted to be removably attracted to each other within la or to the ferromagnetic plate 2 or 3.
（実施例）
以下本発明に係る止具の詳細を図面に示す典型
的な一実施例について説明するに、１は硬質フエ
ライト、アルニコ、希土類コバルト等の硬質磁性
粉末を含有するプラスチツクよりなるプラスチツ
ク磁石であり、その一方の磁極面ｂより他方の磁
極面ａに亘り係合用の孔１ａを開設すると共に磁
極面ｂに強磁性板が一体的に埋設固定されてい
る。(Example) Hereinafter, a typical example will be described in which the details of the fastener according to the present invention are shown in the drawings. 1 is a plastic magnet made of plastic containing hard magnetic powder such as hard ferrite, alnico, and rare earth cobalt. An engaging hole 1a is formed extending from one magnetic pole surface b to the other magnetic pole surface a, and a ferromagnetic plate is embedded and fixed integrally in the magnetic pole surface b.
而して、この強磁性板２はプラスチツク磁石の
成形、殊にインジエクシヨン成形において型枠内
にインサート成形され、強磁性板２を磁石１の端
面に埋設されている。 The ferromagnetic plate 2 is inserted into a mold during plastic magnet molding, particularly injection molding, and the ferromagnetic plate 2 is embedded in the end face of the magnet 1.
尚、叙上磁石１の成形は必ずしもインジエクシ
ヨンによることなく他の相当の、例えば押出し成
形後の熱処理等によつて成形する場合もあり、ど
のような成形手法を採用するかは成形品としての
磁石精度の必要性、成形コスト等を総合的に勘案
して決定される。 The above-mentioned magnet 1 is not necessarily formed by injection molding, but may be formed by other suitable methods such as heat treatment after extrusion molding, and the type of molding method to be adopted depends on the magnet as a molded product. It is determined by comprehensively considering the need for precision, molding cost, etc.
このような磁石１に対し、その空いている磁極
面ａに他の強磁性板３を吸着脱自在に当接させる
と共に、この強磁性板３に突設した強磁性突起３
ａを先の磁石１の孔１ａを介して強磁性板２の板
面に当接、吸着させるように構成されている。 With respect to such a magnet 1, another ferromagnetic plate 3 is brought into contact with the vacant magnetic pole surface a in a detachable manner, and a ferromagnetic protrusion 3 protruding from this ferromagnetic plate 3 is attached.
The magnet 1 is configured so that the magnet 1 is brought into contact with and attracted to the surface of the ferromagnetic plate 2 through the hole 1a of the magnet 1.
このように構成される吸着状態に於いては、磁
石１のNS両極間に強磁性板２、強磁性突起２
ａ、強磁性突起３ａ、強磁性板３あるは強磁性板
３、強磁性突起３ａ、強磁性突起２ａ、強磁性板
２を通る低磁気抵抗の閉回路が形成され、強力な
吸着力が得られる。 In the attracted state configured in this way, a ferromagnetic plate 2 and a ferromagnetic protrusion 2 are placed between the NS poles of the magnet 1.
A, a closed circuit with low magnetic resistance is formed through the ferromagnetic protrusion 3a, the ferromagnetic plate 3, or the ferromagnetic plate 3, the ferromagnetic protrusion 3a, the ferromagnetic protrusion 2a, and the ferromagnetic plate 2, and a strong attraction force is obtained. It will be done.
尚、上記の強磁性板２並びに強磁性板３に対
し、夫々の止具をハンドバツグ等の取付け基板４
等に止着する手段として各種の取付け部材を付設
せしめるようになつており、第１図では強磁性板
３に於る強磁性突起３ａを短寸のものとし、代つ
て強磁性板２に強磁性突起２ａを磁石１の孔１ａ
の内周壁面に触れないように立設し、夫々の強磁
性突起２ａ，３ａを当接、吸着せしめるようにし
ているものであり、止着脚片５ａ，５ａを有する
座金５、止着脚片６ａ，６ａを有する座金６を強
磁性突起２ａ又は３ａのカシメヅケをもつて同時
に止着するようになつている。尚、強磁性突起２
ａ，３ａの夫々当接する端部を縮径とすることに
より強磁性突起２ａ，３ａを通る磁力線の分布密
度は極力高められるものであり、強磁性突起２
ａ，３ａの吸着力が強化されるようになつてい
る。 In addition, for the above-mentioned ferromagnetic plate 2 and ferromagnetic plate 3, each stopper is attached to a mounting board 4 such as a handbag.
Various mounting members are attached as means for fixing the ferromagnetic plate 2 to the ferromagnetic plate 2. In FIG. The magnetic protrusion 2a is inserted into the hole 1a of the magnet 1.
The ferromagnetic protrusions 2a and 3a are placed upright so as not to touch the inner circumferential wall surface of the washer 5 and the ferromagnetic protrusions 2a and 3a are brought into contact with and attracted to each other. The washer 6 having the pieces 6a and 6a is fastened together using the caulking of the ferromagnetic protrusion 2a or 3a. In addition, ferromagnetic protrusion 2
By reducing the diameter of the abutting ends of the ferromagnetic protrusions 2a and 3a, the distribution density of the lines of magnetic force passing through the ferromagnetic protrusions 2a and 3a can be increased as much as possible, and the ferromagnetic protrusions 2
The adsorption power of a and 3a is strengthened.
次いで、第２図に示される実施例は強磁性突起
２ａが磁石１の孔１ａの孔端に臨む態様のものと
し、強磁性板３の強磁性突起３ａを設けず強磁性
板３の周縁を折り曲げ、係当縁鍔３ｂとされてい
るものである。 Next, in the embodiment shown in FIG. 2, the ferromagnetic protrusion 2a faces the end of the hole 1a of the magnet 1, and the ferromagnetic protrusion 3a of the ferromagnetic plate 3 is not provided, and the periphery of the ferromagnetic plate 3 is It is bent and has an engaging edge flange 3b.
又、第３図の実施例は、第２図の実施例に於け
る強磁性板３の縁鍔３ｂをも除去し、代りに磁石
１の上端面周縁に立上り係当縁１ｃを隆設せしめ
るようにすると共に強磁性板３を、この立上り係
当縁１ｃ内に納まる径寸法とされているものであ
る。 In addition, in the embodiment shown in FIG. 3, the edge 3b of the ferromagnetic plate 3 in the embodiment shown in FIG. In addition, the ferromagnetic plate 3 has a diameter that fits within this rising engagement edge 1c.
更に第４図に示す実施例は磁気シールド用の強
磁性板７を磁石１の押出し縁鍔１ｂによつて一体
的に止着するようにした構成例を示し、強磁性板
７の周側縁鍔１ｂの納まる段部７ａを周回条設す
るようにされているものである。 Further, the embodiment shown in FIG. 4 shows a configuration example in which a ferromagnetic plate 7 for magnetic shielding is integrally fixed by an extruded edge collar 1b of the magnet 1, and the circumferential edge of the ferromagnetic plate 7 A stepped portion 7a in which the collar 1b is accommodated is provided in a circumferential manner.
次いで、第５図の実施例は、第４図に於ける実
施例の強磁性板７の段部７ａの存在しない態様の
ものを示し、これに吸着される強磁性板３が縁鍔
１ｂ内に納まる径寸法とされるものである。 Next, the embodiment shown in FIG. 5 shows an embodiment in which the step 7a of the ferromagnetic plate 7 of the embodiment shown in FIG. It is assumed that the diameter is within the range of .
又、更に第６図ないし第９図に示される実施例
は強磁性突起２ａの取付け桿部２a′をピン状、ボ
ルト状、螺桿状ないしは段付き螺桿状とされてい
るものであり、第７図は基板４を介してナツト
９、又第８図ないし第９図は飾り釦１０を示した
ものである。 Furthermore, in the embodiments shown in FIGS. 6 to 9, the mounting rod portion 2a' of the ferromagnetic protrusion 2a is shaped like a pin, a bolt, a screw rod, or a stepped screw rod. The figure shows the nut 9 through the substrate 4, and FIGS. 8 and 9 show the decorative button 10.
次いで、第１０図に示す実施例は磁石１に於け
る強磁性板３との磁着端面ｂをテーパ面あるいは
アール面とし、強磁性板３の強磁性突起３ａの係
合案内面とされているものであり、又、第１１図
の実施例はバンド類のバツクル、ネツクレス等の
止具としての一例を示したものであり強磁性板２
を磁石１の側方に延設してバンド８等の取付け鍔
部２ｂとされているものである。 Next, in the embodiment shown in FIG. 10, the magnetically attached end surface b of the magnet 1 with the ferromagnetic plate 3 is made into a tapered surface or a rounded surface, and is used as an engagement guide surface for the ferromagnetic protrusion 3a of the ferromagnetic plate 3. The embodiment shown in FIG. 11 shows an example of a fastener for buckles, neck ties, etc. of bands, and the ferromagnetic plate 2
is extended to the side of the magnet 1 to form a flange 2b for attaching the band 8 and the like.
次いで又、第１２図に於ける実施例は磁石１の
中央孔１ａを介して強磁性板３に突設した強磁性
突起３ａを強磁性板２の板面に当接、吸着するよ
うにされているものであり、同時に強磁性板３の
両端に突設した縁３ｃ内に磁石１が嵌合するよう
になつているものであり、引つ張りに対する強度
を極めて大とするようになつているものである。
又、強磁性板２を磁石１の側方に延設してバンド
８等の取付け鍔部２ｂとされている。 Next, in the embodiment shown in FIG. 12, a ferromagnetic protrusion 3a protruding from the ferromagnetic plate 3 is brought into contact with and attracted to the surface of the ferromagnetic plate 2 through the central hole 1a of the magnet 1. At the same time, the magnet 1 is fitted into edges 3c protruding from both ends of the ferromagnetic plate 3, and the strength against tension is extremely high. It is something that exists.
Further, a ferromagnetic plate 2 is extended to the side of the magnet 1 to form a flange 2b for attaching a band 8 or the like.
更に又、第１３図に於ける実施例は磁石１の一
側端寄りに開穿された孔１ａを介して、強磁性板
３の先端部に突設した強磁性突起３ａを強磁性板
２に当接、吸着させ強磁性板２を磁石１の側方に
延設しバンド８等の鍔部２ｂとされているもので
ある。 Furthermore, in the embodiment shown in FIG. 13, a ferromagnetic protrusion 3a protruding from the tip of the ferromagnetic plate 3 is connected to the ferromagnetic plate 2 through a hole 1a drilled near one end of the magnet 1. A ferromagnetic plate 2 is brought into contact with and attracted to the magnet 1 and extended to the side of the magnet 1 to form a flange 2b of a band 8 or the like.
次いで、第１４図の実施例は磁石１の一側端寄
りに開穿された孔１ａを介して、強磁性板３の一
側端寄りに打抜き折り曲げて形成した強磁性突起
３ａを強磁性板２に当接、吸着させ、強磁性板２
を磁石１の側方に延設してバンド等の取付け孔が
開穿されているものであり、強磁性板３の他側端
部にはバンド取付け孔が開穿されている。 Next, in the embodiment shown in FIG. 14, a ferromagnetic protrusion 3a formed by punching and bending a ferromagnetic plate 3 toward one end thereof is attached to the ferromagnetic plate through a hole 1a drilled toward one end of the magnet 1. ferromagnetic plate 2.
The ferromagnetic plate 3 has a hole for attaching a band, etc., extending to the side of the magnet 1, and a hole for attaching a band is bored at the other end of the ferromagnetic plate 3.
更に、第１５図に於ける実施例は強磁性板２に
対し、止着脚片５ａ，５ａを有する取付け座金５
を強磁性突起２のカシメづけをもつて同時に止着
されているものであり、強磁性板３の強磁性突起
３ａを強磁性突起２ａと当接させるようにし止着
脚片６ａ，６ａを有する取付け座金６のカシメづ
けをもつて止着し、尚、強磁性板３の周縁を折り
曲げ、係当縁鍔３ｂとされているものである。 Furthermore, in the embodiment shown in FIG.
are fixed at the same time by caulking the ferromagnetic protrusion 2, and the ferromagnetic protrusion 3a of the ferromagnetic plate 3 is brought into contact with the ferromagnetic protrusion 2a, and has fixing leg pieces 6a, 6a. It is fixed by caulking the mounting washer 6, and the peripheral edge of the ferromagnetic plate 3 is bent to form a retaining edge flange 3b.
（効果）
本発明は叙上に於ける特徴ある構成、就中磁石
１をプラスチツク磁石としたこと並びに該磁石１
をもつて強磁性板２あるいは取付け部材等を一体
的に止着成形したことをもつて前記の従前例に於
ける不都合を一気に解消すると共に磁着性の極め
て良好な止具を提供し得たものである。(Effects) The present invention has a characteristic structure as described above, in particular, the magnet 1 is made of a plastic magnet, and the magnet 1 is made of a plastic magnet.
By integrally fixing and molding the ferromagnetic plate 2 or the mounting member, etc., the above-mentioned disadvantages of the conventional example can be solved at once, and a fastener with extremely good magnetic adhesion can be provided. It is something.
特に本発明に於いては磁石１自体の形状に格段
の制約を受けることなく各種の且つ任意の形状の
作成が可能である。又、ケース類を介装せず直接
的に強磁性板３と接触させる態様としたことによ
り吸着力は飛躍的に強化され、又、当然のこと乍
ら組み付け部品相互の継続使用に伴なうガタツキ
の発生を生ずることがなく、更に組み付けコス
ト、部品コストの低廉化をも可能としたものであ
る。 In particular, in the present invention, the magnet 1 itself can be formed into various arbitrary shapes without being subject to any particular restrictions on its shape. In addition, by making the ferromagnetic plate 3 come into direct contact with the ferromagnetic plate 3 without intervening a case, the adsorption force is dramatically strengthened. This does not cause rattling, and it also makes it possible to reduce assembly costs and parts costs.
更に、かゝる磁石面が露呈するようにしたこと
により金属蒸着その他の適宜の表面処理が可能と
なり、取り付け対象物に合せた表面色彩、艷出し
等が可能となり、外観色調に優れた止具の提供が
可能となつたものである。 Furthermore, by exposing the magnet surface, it is possible to perform metal vapor deposition or other appropriate surface treatments, and it is possible to change the surface color and pull out to match the object to which it is attached, resulting in a fastener with excellent external color tone. It is now possible to provide the following.
第１図は本発明の典型的な一実施例を示す断面
図、第２図〜第１３図は他の実施例を示す断面
図、第１４図は他の実施例を示す斜視図、第１５
図は他の実施例を示す断面図である。
１…磁石、２〜３…強磁性板、４…基板、５〜
６…座金、７…強磁性板、８…バンド、９…ナツ
ト、１０…飾り釦。
FIG. 1 is a sectional view showing a typical embodiment of the present invention, FIGS. 2 to 13 are sectional views showing other embodiments, FIG. 14 is a perspective view showing another embodiment, and FIG.
The figure is a sectional view showing another embodiment. 1... Magnet, 2-3... Ferromagnetic plate, 4... Substrate, 5-
6... washer, 7... ferromagnetic plate, 8... band, 9... nut, 10... decorative button.
Claims (1)
１の一方の磁極面ｂの側に強磁性板２が埋設され
ており、且つ該強磁性板２に向けて他方の磁極面
ａから孔１ａが開設されていると共に、前記永久
磁石１の磁極面ａに吸着される強磁性板３と前記
強磁性板２との両方又はいずれか一方から突設さ
れる強磁性突起２ａ，３ａが前記孔１ａ内で相互
に、又は前記強磁性板２又は３に着脱自在に吸着
されることを特徴とする係合具。1 A ferromagnetic plate 2 is embedded in the side of one magnetic pole surface b of a permanent magnet 1 made of synthetic resin containing hard magnetic powder, and a hole 1 a is formed from the other magnetic pole surface a toward the ferromagnetic plate 2. Ferromagnetic protrusions 2a, 3a protruding from both or either of the ferromagnetic plate 3 and the ferromagnetic plate 2, which are attracted to the magnetic pole surface a of the permanent magnet 1, are provided in the hole 1a. An engaging device characterized in that the devices are detachably attracted to each other or to the ferromagnetic plate 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10147583A JPS5946011A (en) | 1983-06-06 | 1983-06-06 | Engagement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10147583A JPS5946011A (en) | 1983-06-06 | 1983-06-06 | Engagement device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10290880A Division JPS6031085B2 (en) | 1980-07-26 | 1980-07-26 | Engagement tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5946011A JPS5946011A (en) | 1984-03-15 |
| JPS6139722B2 true JPS6139722B2 (en) | 1986-09-05 |
Family
ID=14301752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10147583A Granted JPS5946011A (en) | 1983-06-06 | 1983-06-06 | Engagement device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946011A (en) |
-
1983
- 1983-06-06 JP JP10147583A patent/JPS5946011A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5946011A (en) | 1984-03-15 |
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