JPS5931883Y2 - Latch using permanent magnet - Google Patents
Latch using permanent magnetInfo
- Publication number
- JPS5931883Y2 JPS5931883Y2 JP1979147420U JP14742079U JPS5931883Y2 JP S5931883 Y2 JPS5931883 Y2 JP S5931883Y2 JP 1979147420 U JP1979147420 U JP 1979147420U JP 14742079 U JP14742079 U JP 14742079U JP S5931883 Y2 JPS5931883 Y2 JP S5931883Y2
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- ferromagnetic
- cap
- opening
- case
- 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
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Description
【考案の詳細な説明】
この考案は、永久磁石を用いた掛止具に関し、永久磁石
による吸着力が局部的に表われるようにすることを目的
としたものである。[Detailed Description of the Invention] This invention relates to a hanging tool using a permanent magnet, and is aimed at allowing the attraction force of the permanent magnet to be locally exerted.
従来、永久磁石を用いた掛止具には種々の構造のものが
知られており、特に、環状永久磁石を用いて、その両磁
極面に配置した強磁性体を前記環状永久磁石の中央孔部
で離接自在に当接させたものは、磁気の集中による強力
な吸着力を発揮できるものであった。Hitherto, various types of latches using permanent magnets have been known.In particular, a ring-shaped permanent magnet is used, and a ferromagnetic material placed on both magnetic pole faces is inserted into the center hole of the ring-shaped permanent magnet. Those in which the parts were brought into contact with each other in a manner that could be freely moved toward and away from each other were able to exert a strong adsorption force due to the concentration of magnetism.
然し乍ら、前記環状永久磁石を用いた掛止具において、
固定側を環状永久磁石と一方の強磁性体で構成し、可動
側を他方の強磁性体で構成した場合に、前記環状永久磁
石の、可動側の強磁性体を吸着する端面は全面に磁気吸
着力が表われ、可動側を構成する強磁性体が正しい吸着
位置になくても吸着される結果、吸着側端面に設ける磁
石カバーに摺接傷を付けるなどの問題点があった。However, in the hanging tool using the annular permanent magnet,
When the fixed side is composed of an annular permanent magnet and one ferromagnetic substance, and the movable side is composed of the other ferromagnetic substance, the end face of the annular permanent magnet that attracts the ferromagnetic substance on the movable side is entirely magnetic. The attraction force appears and the ferromagnetic material constituting the movable side is attracted even if it is not in the correct attraction position, resulting in problems such as scratches on the magnet cover provided on the end surface of the attraction side.
又、可動側と固定側の吸着端面に吸着させる前には、該
端面より外部に磁力線が出る構造である為、キャッシュ
カードの磁気ストライプ、定期券の裏面に設けられた磁
気記録面等、磁気記録媒体の記録内容が、前記外部漏洩
磁力線で乱される問題点があった。In addition, before it is attracted to the adsorption end surfaces of the movable side and fixed side, the structure is such that lines of magnetic force exit from the end surfaces, so magnetic stripes on cash cards, magnetic recording surfaces on the backs of commuter passes, etc. There is a problem in that the recorded contents of the recording medium are disturbed by the external leakage magnetic field lines.
然るにこの考案は、固定側を構成するケース内に、永久
磁石板と、該永久磁石板の両磁極面を挾着する２個の強
磁性体を収容する一方、可動側には、前記ケースの開口
部に突入して、前記２個の強磁性体と当接することによ
り永久磁石の磁路を完結する強磁性体を設けて掛止具を
構成したので、可動側の強磁性体はケースの開口部と正
対するまで吸引されることがなく、開口部周囲に設ける
キャップその他の部材に摺接傷を付けるなどの問題点を
解決したのである。However, in this invention, a permanent magnet plate and two ferromagnetic bodies that clamp both magnetic pole faces of the permanent magnet plate are housed in a case constituting the fixed side, while the movable side accommodates a permanent magnet plate and two ferromagnetic bodies that clamp both magnetic pole faces of the permanent magnet plate. The ferromagnetic body completes the magnetic path of the permanent magnet by entering the opening and coming into contact with the two ferromagnetic bodies to form the hook, so the ferromagnetic body on the movable side is attached to the case. It is not sucked until it directly faces the opening, which solves problems such as scratches caused by sliding on caps and other members provided around the opening.
又、前記磁気記録媒体に対する影響についても、可動側
を吸着させる前における磁力線が、前記２個の強磁性体
の端部間で局部的に出るようにし、掛止具の外部には洩
れないようにして解決することに成功したのである。In addition, regarding the influence on the magnetic recording medium, the lines of magnetic force before the movable side is attracted are made to appear locally between the ends of the two ferromagnetic bodies, so that they do not leak to the outside of the hook. They succeeded in solving the problem.
即ちこの考案を第１図乃至第１０図に示した実施例につ
いて説明すれば、固定側Ａを構成する有底筒体状のケー
ス１内中央部に、永久磁石板２を立設して、その両側極
面に夫々半円柱体でなる強磁性体３，３の平面部を当接
する。That is, to explain this invention with reference to the embodiment shown in FIGS. 1 to 10, a permanent magnet plate 2 is erected in the center of a bottomed cylindrical case 1 constituting the fixed side A. The flat portions of ferromagnetic bodies 3, 3 each having a semi-cylindrical body are brought into contact with the pole faces on both sides thereof.
前記ケース１の開口縁外側には環状鍔４が形成してあり
、該環状鍔４には直径対称位置に固着片５，５が連設し
である。An annular flange 4 is formed on the outer side of the opening edge of the case 1, and fixing pieces 5, 5 are connected to the annular flange 4 at diametrically symmetrical positions.
前記ケース１の開口部には永久磁石板１および強磁性体
３，３の各端部が臨んでおり可動側Ｂに対する吸着部を
構成しており、このケース１の開口部には漏斗状のキャ
ップ６を設けである。The ends of the permanent magnet plate 1 and the ferromagnetic bodies 3, 3 face the opening of the case 1, forming an adsorption part for the movable side B, and the opening of the case 1 has a funnel-shaped A cap 6 is provided.
尚、前記ケース１およびキャップ６は真鍮その他の非磁
性板で形成する。Incidentally, the case 1 and the cap 6 are made of brass or other non-magnetic plate.
一方、上記固定側Ａに対する可動側Ｂは、キャップ６の
傾斜面に一致する外側の下面を有する円盤７の下面中央
に、キャップ６の孔部６ａを貫通してケース１の開口部
に嵌入し、かつ鉄部に臨んでいる２個の強磁性体３゜３
の端面に離接自在に当接する強磁性体製の円柱８を設け
て構成する。On the other hand, the movable side B relative to the fixed side A is inserted into the opening of the case 1 through the hole 6a of the cap 6 at the center of the lower surface of the disk 7, which has an outer lower surface that matches the inclined surface of the cap 6. , and two ferromagnetic bodies facing the iron part 3゜3
It is constructed by providing a cylinder 8 made of ferromagnetic material that comes into contact with the end face of the ferromagnetic material so as to be able to freely come and go.
図中９は可動部Ｂ側に設けた固着片、１０．１１は固着
片５，９と共同する補助円盤である。In the figure, 9 is a fixed piece provided on the side of the movable part B, and 10.11 is an auxiliary disk that cooperates with the fixed pieces 5 and 9.
上記実施例の掛止具は、例えば固定側を鞄の本体１２側
に、可動側Ｂを鞄の蓋１３側に夫々固着片５，９と補助
円盤１０．１１を介して固着して使用する（第１０図）
。The hanging tool of the above embodiment is used, for example, by fixing the fixed side to the main body 12 side of the bag and the movable side B to the lid 13 side of the bag via the fixing pieces 5, 9 and the auxiliary disk 10.11. (Figure 10)
.
蓋１３を閉鎖する場合に、可動側Ｂを構成した円柱８を
キャップ６の孔部６ａを通して、ケース１の開口部に嵌
入して、円柱８を、ケース１内の強磁性体３，３に当接
すれば、永久磁石板２の磁束に対する磁路が、円柱８と
強磁性体３，３で完結する結果、円柱８が強く吸着され
、蓋１３を確実に閉鎖することができる。When closing the lid 13, the cylinder 8 forming the movable side B is inserted into the opening of the case 1 through the hole 6a of the cap 6, and the cylinder 8 is inserted into the ferromagnetic material 3, 3 inside the case 1. When they come into contact, the magnetic path for the magnetic flux of the permanent magnet plate 2 is completed by the cylinder 8 and the ferromagnetic bodies 3, 3, so that the cylinder 8 is strongly attracted and the lid 13 can be reliably closed.
蓋１３を開ける場合には、円柱８を吸引する力に打ち勝
つ外力により円柱８と強磁性体３，３の当接を分離すれ
ば良い。When opening the lid 13, it is sufficient to separate the contact between the cylinder 8 and the ferromagnetic bodies 3 by using an external force that overcomes the force that attracts the cylinder 8.
上記の実施例において、特記すべきことは、固定側Ａの
永久磁石板２による吸着力が、ケース１の開口部のみに
、局部的に限定されていることである。What should be noted in the above embodiment is that the attraction force by the permanent magnet plate 2 on the fixed side A is locally limited only to the opening of the case 1.
従って蓋１３の閉鎖において、円柱８がキャップ６の傾
斜面に当接した時点では、該円柱８には未だ永久磁石板
２の吸着力は作用しない結果、キャップ６の傾斜面を滑
らかに摺動でき、該傾斜面に摺接による傷も付けること
がないのである。Therefore, when the cylinder 8 comes into contact with the inclined surface of the cap 6 when the lid 13 is closed, the attraction force of the permanent magnet plate 2 does not yet act on the cylinder 8, so that the cylinder 8 slides smoothly on the inclined surface of the cap 6. This also prevents damage to the inclined surface due to sliding contact.
然して円柱８はキャップ６の傾斜面に案内されて、その
孔部６ａに容易に位置させることができる。Thus, the cylinder 8 is guided by the inclined surface of the cap 6 and can be easily positioned in the hole 6a.
又、可動側Ｂを固定側Ａに吸着させる前において永久磁
石板２から発する磁力線は、強磁性体３゜３の端部外側
に出るが、この磁力線は距離的に最も近い距離を通る性
質があるので、強磁性体の端部近傍に局部的に表われ、
キャップ６の漏斗状の傾斜面には、はとんど表われない
。Furthermore, before the movable side B is attracted to the fixed side A, the lines of magnetic force emitted from the permanent magnet plate 2 exit to the outside of the end of the ferromagnetic body 3, but these lines of force have the property of passing through the closest distance in terms of distance. Therefore, it appears locally near the edge of the ferromagnetic material,
It hardly appears on the funnel-shaped inclined surface of the cap 6.
従って、キャップ６で覆われた固定側Ａにキャッシュカ
ード、定期券等の磁気記録媒体を近づけても、磁気記録
情報が破壊されるおそれが無い。Therefore, even if a magnetic recording medium such as a cash card or a commuter pass is brought close to the fixed side A covered by the cap 6, there is no fear that the magnetically recorded information will be destroyed.
第１１図に示した実施例は、前記の実施例とほぼ同一構
造であって、ケース１の開口部に設けた漏斗状のキャッ
プ６に代えて、平坦なキャップ１４としたものである。The embodiment shown in FIG. 11 has almost the same structure as the previous embodiment, except that the funnel-shaped cap 6 provided at the opening of the case 1 is replaced by a flat cap 14.
この実施例においても永久磁石板１による吸着力はケー
ス１の開口部に限定されており、キャップ１４の面上に
は吸着力が表われないので、可動側Ｂを構成する円柱８
はキャップ１４面上を滑らかに摺動させることができ、
鉄面に与える摺接傷を少なくすることができる。Also in this embodiment, the attraction force by the permanent magnet plate 1 is limited to the opening of the case 1, and the attraction force does not appear on the surface of the cap 14, so the cylinder 8 constituting the movable side B
can slide smoothly on the 14th surface of the cap,
Sliding scratches on steel surfaces can be reduced.
次に第１２図乃至第１４図に示した実施例は永久磁石板
を含む固定側Ａを可及的に薄く構成した実施例である。Next, the embodiment shown in FIGS. 12 to 14 is an embodiment in which the fixed side A including the permanent magnet plate is made as thin as possible.
第１２図および第１３図は、ケース１５内に、永久磁石
板１６を横置に配置し、その上下極面に強磁性板１７，
１７ａを当接し、上側の強磁性板１７の一側縁部をケー
ス１５の開口部に臨ませると共に、下側の強磁性板１７
ａの一側縁部上には強磁性体製の補助極１８を固着して
、該補助極１８を開口部に臨ませたものである。12 and 13, a permanent magnet plate 16 is placed horizontally in a case 15, and ferromagnetic plates 17,
17a so that one side edge of the upper ferromagnetic plate 17 faces the opening of the case 15, and the lower ferromagnetic plate 17
An auxiliary pole 18 made of a ferromagnetic material is fixed on one side edge of a, and the auxiliary pole 18 faces the opening.
可動側Ｂは前記実施例と同様である。The movable side B is the same as in the previous embodiment.
一方策１４図の実施例は、ケース１５内の永久磁石板１
６の上下極面に当接した強磁性板１７゜１７ａの上側の
強磁性板１７の一側縁部を前記同様ケース１５の開口部
に臨ませると共に、下側の強磁性板１７ａの一側縁部を
上側に屈曲して立上り片１９を形成し、該立上り片１９
をケース１５の開口部に臨ませたものである。On the other hand, in the embodiment shown in FIG. 14, the permanent magnet plate 1 inside the case 15 is
One side edge of the upper ferromagnetic plate 17 of the ferromagnetic plate 17° 17a that is in contact with the upper and lower pole surfaces of the ferromagnetic plate 17a is faced to the opening of the case 15 as before, and one side of the lower ferromagnetic plate 17a A rising piece 19 is formed by bending the edge upward, and the rising piece 19
is shown facing the opening of the case 15.
これらの実施例においても、可動側Ｂを構成した円柱８
をキャップ６の孔部６ａを通して、ケース１５の開口部
に嵌入し、強磁性板１７と、補助極１８又は立上り片１
９に当接すれば、永久磁石板１６の磁路が完結して、可
動側Ｂが固定側Ａに強固に吸着保持される。Also in these embodiments, the cylinder 8 that constituted the movable side B
is inserted into the opening of the case 15 through the hole 6a of the cap 6, and the ferromagnetic plate 17 and the auxiliary pole 18 or the rising piece 1 are inserted.
9, the magnetic path of the permanent magnet plate 16 is completed, and the movable side B is firmly attracted and held to the fixed side A.
第１２図および第１３図の実施例のように、一方の強磁
性板に補助極１８を固着すれば、補助極１８の断面積を
大きくできるので、磁気飽和による吸着力の減少を避け
ることができる。If the auxiliary pole 18 is fixed to one of the ferromagnetic plates as in the embodiments shown in FIGS. 12 and 13, the cross-sectional area of the auxiliary pole 18 can be increased, so that a reduction in the attractive force due to magnetic saturation can be avoided. can.
即ちこの考案によれば、固定側を構成するケースの開口
部に永久磁石の吸着力を集中させたので、可動側の強磁
性体が、前記ケースの開口部に設けたキャップその他の
部材に摺接傷を与えない効果があり、かつ可動側を固定
側に吸着させた場合には、両者は確実に正対しているの
で、鞄その他の袋物に使用した場合、その蓋体を確実に
閉鎖できる効果がある。That is, according to this invention, the attraction force of the permanent magnet is concentrated at the opening of the case that constitutes the fixed side, so that the ferromagnetic material on the movable side slides on the cap and other members provided at the opening of the case. It has the effect of preventing contact, and when the movable side is attached to the fixed side, the two sides are surely facing each other, so when used on bags or other bags, the lid can be closed securely. effective.
又、可動側吸着前には、固定側の外部に磁力線をほとん
ど出ないようにしたので、キャッシュカードその他の磁
気記録情報を破壊しない効果がある。In addition, before the movable side is attracted, almost no lines of magnetic force are allowed to exit the fixed side, which has the effect of not destroying magnetically recorded information on cash cards and other magnetically recorded information.
【図面の簡単な説明】
第１図はこの考案の実施例の固定側の平面図、第２図は
同じく正面図、第３図は同じく側面図、第４図は同じく
底面図、第５図はこの考案の実施例の可動側の平面図、
第６図は同じく正面図、第７図は同じく側面図、第８図
は同じく底面図、第９図はこの考案の実施例の吸着状態
の正面図、第１０図はこの考案の実施例の使用状態にお
ける断面図、第１１図はこの考案の他の実施例の断面図
、第１２図は第１３図中Ａ−Ａ線における断面図、第１
３図はこの考案の別の実施例の断面図、第１４図はこの
考案の更に別の実施例の断面図である。
１．１５・・・ケース、２，１６・・・永久磁石、３・
・・強磁性体、４・・・環状鍔、５，９・・・固着片、
６，１４・・・キャップ、７・・・円盤、８・・・円柱
、１０．１１・・・補助円盤、１２・・・鞄の本体、１
３・・・蓋、１７゜１７ａ・・・強磁性板、１８・・・
補助極、１９・・・立上り片。[Brief Description of the Drawings] Figure 1 is a plan view of the fixed side of the embodiment of this invention, Figure 2 is a front view, Figure 3 is a side view, Figure 4 is a bottom view, and Figure 5 is a side view. is a plan view of the movable side of the embodiment of this invention,
Fig. 6 is a front view, Fig. 7 is a side view, Fig. 8 is a bottom view, Fig. 9 is a front view of an embodiment of this invention in an adsorbed state, and Fig. 10 is an embodiment of this invention. 11 is a sectional view of another embodiment of the invention; FIG. 12 is a sectional view taken along line A-A in FIG. 13;
FIG. 3 is a sectional view of another embodiment of this invention, and FIG. 14 is a sectional view of still another embodiment of this invention. 1.15...Case, 2,16...Permanent magnet, 3.
... Ferromagnetic material, 4 ... Annular collar, 5, 9 ... Fixed piece,
6, 14...Cap, 7...Disc, 8...Cylinder, 10.11...Auxiliary disk, 12...Bag body, 1
3... Lid, 17° 17a... Ferromagnetic plate, 18...
Auxiliary pole, 19... rising piece.
Claims (1)
を構成するケース内には永久磁石板と、該永久磁石板の
両磁極面を挾着する２個の強磁性体が収容してあり、該
２個の強磁性体の端部がケースの開口部内側に臨ませで
あると共に、開口部外側には該開口部と連通ずる中心孔
を形成したキャップが設けてあり、可動側には前記キャ
ップの中心孔を貫通し、かつ前記２個の強磁性体に離接
自在に尚接する為の強磁性体が設けであることを特徴と
した永久磁石を用いた掛止具。 ２ キャップは漏斗状とした実用新案登録請求の範囲第
１項記載の永久磁石を用いた掛止具。 ３ 固定側の２個の強磁性体と可動側の強磁性体とで構
成される磁路には、固定側の一方の強磁性体に固着した
別の強磁性体を介装させた実用新案登録請求の範囲第１
項記載の永久磁石を用いた掛止具。[Scope of Claim for Utility Model Registration] 1. In a case that constitutes the fixed side of a hanging tool that utilizes the attraction force of a permanent magnet, there is a permanent magnet plate and two pieces that clamp both magnetic pole faces of the permanent magnet plate. A ferromagnetic material is housed therein, and the ends of the two ferromagnetic materials face the inside of the opening of the case, and a cap having a center hole communicating with the opening is provided on the outside of the opening. A permanent magnet is provided on the movable side of the cap, and a ferromagnetic body is provided on the movable side so as to penetrate through the center hole of the cap and come into contact with the two ferromagnetic bodies so as to be able to move toward and away from the two ferromagnetic bodies. A hanging tool. 2. A hanging tool using a permanent magnet as described in claim 1 of the utility model registration claim, in which the cap is funnel-shaped. 3 A utility model in which a magnetic path consisting of two ferromagnetic materials on the fixed side and a ferromagnetic material on the movable side is interposed with another ferromagnetic material fixed to one of the ferromagnetic materials on the fixed side. Scope of registration claims 1st
A latching device using a permanent magnet as described in Section 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979147420U JPS5931883Y2 (en) | 1979-10-24 | 1979-10-24 | Latch using permanent magnet |
| US06/574,019 US4505007A (en) | 1979-10-24 | 1984-01-26 | Magnet clasp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979147420U JPS5931883Y2 (en) | 1979-10-24 | 1979-10-24 | Latch using permanent magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5665070U JPS5665070U (en) | 1981-06-01 |
| JPS5931883Y2 true JPS5931883Y2 (en) | 1984-09-07 |
Family
ID=29378560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979147420U Expired JPS5931883Y2 (en) | 1979-10-24 | 1979-10-24 | Latch using permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931883Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6331103A (en) * | 1986-07-24 | 1988-02-09 | Oyo Gijutsu Kenkyusho:Kk | Magnetic latching tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414640U (en) * | 1977-07-04 | 1979-01-30 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5551981Y2 (en) * | 1974-05-07 | 1980-12-03 |
-
1979
- 1979-10-24 JP JP1979147420U patent/JPS5931883Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414640U (en) * | 1977-07-04 | 1979-01-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5665070U (en) | 1981-06-01 |
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