JPH0230807Y2 - - Google Patents
Info
- Publication number
- JPH0230807Y2 JPH0230807Y2 JP14604584U JP14604584U JPH0230807Y2 JP H0230807 Y2 JPH0230807 Y2 JP H0230807Y2 JP 14604584 U JP14604584 U JP 14604584U JP 14604584 U JP14604584 U JP 14604584U JP H0230807 Y2 JPH0230807 Y2 JP H0230807Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rubber
- attracting
- magnetic pole
- force
- 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
- 229920001971 elastomer Polymers 0.000 claims description 28
- 239000005060 rubber Substances 0.000 claims description 28
- 238000001179 sorption measurement Methods 0.000 claims description 17
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Description
産業上の利用分野
この高滑り抗力吸着磁石は、鉄製品に諸機器の
安定吸着保持に用いられる。鉄製品を加工するド
リル等の吸着機、自動車屋根への非常灯、ハンガ
ー台等の吸着保持、スチールロツカー等へのハン
ガー、フツク等の吸着保持に使用される。
従来例の構成とその問題点
吸着磁石の吸着力P.Fは、吸着磁極の吸着面積
Ａと、被吸着体と吸着面積Ａ間の磁束密度Ｂの自
乗との積となつている。
P.F＝Ａ×B2
吸着力P.Fに対して直角方向の力が吸着磁石に
作用するときに、吸着磁極と被吸着体の間に磨擦
抵抗がないときは、吸着力P.Fに関係なく吸着磁
石は直角方向に移動する、故に吸着磁石において
は磨擦抵抗を大とする、即ち滑り抗力S.Fを大と
することが吸着磁石の吸着能力増大に有効であ
る。
従来の吸着磁石の断面を第１図A.B.C.Dに示
す。吸着磁石において、磁石１の磁極にＵ型継鉄
２、磁極片３もしくは継鉄４等を用い、磁束を集
め磁束密度Ｂを大とする方式が用いられている
が、吸着しているとき、荷重が大となり、滑ると
被吸着体８面に、鉄製の磁極片３等によつて傷を
つける。他方被吸着体８に吸着磁石を取り着ける
とき、その吸着力P.Fによつて吸着磁石は急峻に
被吸着体８に吸引され、その自重に慣性も加わ
り、衝突状況となつて被吸着体８の面に損傷を生
ずる。他方第１図Ｄの如く、磁石１の吸着磁極面
にビニールもしくはゴムシート５等を設けたもの
もあるが、その滑り抗力S.Fは、吸着力P.Fの半
分又は等しい状況である。
考案の目的
本考案は、吸着磁石が被吸着体に吸着のとき、
滑りのときに被吸着面に損傷を与えることなく、
そして吸着力P.Fよりも大なる滑り抗力S.Fを有
する吸着磁石を目標としたものである。
考案の構成
(1) ゴム磁石の場合
ゴム磁石は、フエライト磁石粉末に合成ゴム、
プラスチツク等を添加混練した可撓性の硬度
shoreD３８〜Ｄ４５の磁石である。第１図Ｃに
示すゴム磁石を用いた磁石１の磁極を直接被吸着
体８の化粧塗装のスチール板に吸着の滑り抗力S.
Fは、吸着力P.Fの50％程度である。磨擦抵抗を
大とするため、第１図Ｄの如く、吸着磁極面に
0.6tmm、0.4tmm厚さのゴム硬度のゴムシート５を
接着したときの吸着力P.Fは0.6tにて20％、0.4tに
て10％の減少となる。0.4tの滑り抗力S.Fは、吸
着力P.Fの13％増となる。さらに滑り抗力S.Fの
増加を計り、第１図Ｅの如く、ニトリルゴムシー
ト0.4tの片面を凹凸面としたそして凸部は約0.2t
の高さ、凸部の直径は0.8〜1.3mmとし、この凸部
を20〜25ケ／cm2設けた。この凹凸ゴムシート６を
吸着磁極面に接着したときの滑り抗力S.Fは、吸
着力P.Fの約２倍に増大の高滑り抗力S.Fとなつ
た。
(2) フエライト磁石の場合
第１図Ｃ フエライト磁石の吸着磁極面を直接
化粧塗装されたスチール板の被吸着体８に吸着さ
せるときは、フエライト磁石によつて損傷又荷重
が大きく滑りを生ずるときは、被吸着体８面に引
つかき損傷が発生するので実用化出来ない。第１
図Ｂ 吸着磁極面に0.4t厚さ、ゴム硬度45゜のニト
リルゴムシートを接着させたときの滑り抗力S.F
は、吸着力P.Fの20％増加となる。前記と同じ凹
凸ゴムシート６を吸着磁極面に接着するときは、
吸着力P.Fの２倍の高滑り抗力S.Fが得られた。
(1)，(2)の結果より凹凸の軟質弾性体を吸着磁極
面に設けることは、磨擦抵抗を増大させて滑り抗
力S.Fを著しく増大することが見出された。
実施例の説明
第２図ABに実施例の吸着磁石の断面図を示
す。Ａは磁石１，１にゴム磁石を用いた。厚さ
4t、幅１５W、長さ90Lの磁石１，１は、２本を間
隔を設け、厚さ1.6tの継鉄４に接着し、これをゴ
ム金型に入れ、ゴム磁石吸着磁極面に厚さは
0.4t、そして凹凸面となるようゴム硬度45のニト
リルゴムにて埋没成形を行ない埋没ゴム７とし
た。この吸着磁石の吸着磁極面の状態と吸着力P.
F、滑り抗力S.Fの値を第１表に示す。
Industrial Application Fields This high slip resistance adsorption magnet is used to stably adsorb and hold various equipment on iron products. Used for suction machines such as drills that process iron products, emergency lights on car roofs, suction and holding of hanger stands, etc., and suction and holding of hangers and hooks on steel lockers, etc. Structure of the conventional example and its problems The attraction force PF of the attraction magnet is the product of the attraction area A of the attraction pole and the square of the magnetic flux density B between the attracting object and the attraction area A. PF=A×B 2When a force in the direction perpendicular to the attraction force PF acts on the attraction magnet, if there is no frictional resistance between the attraction magnetic pole and the object to be attracted, the attraction magnet will move regardless of the attraction force PF. Therefore, in an attracting magnet that moves in the right angle direction, it is effective to increase the frictional resistance, that is, to increase the sliding resistance SF, to increase the attracting ability of the attracting magnet. A cross section of a conventional attraction magnet is shown in Figure 1 ABCD. In attracting magnets, a method is used in which a U-shaped yoke 2, a magnetic pole piece 3, or a yoke 4 is used as the magnetic pole of the magnet 1 to collect magnetic flux and increase the magnetic flux density B. However, when the magnet is attracted, If the load becomes large and it slips, the iron magnetic pole piece 3 or the like will damage the 8 surface of the object to be attracted. On the other hand, when attaching an attracting magnet to the attracting object 8, the attracting force PF causes the attracting magnet to be rapidly attracted to the attracting object 8, and inertia is added to its own weight, resulting in a collision situation. Causes damage to the surface. On the other hand, as shown in FIG. 1D, there is also a magnet 1 in which a vinyl or rubber sheet 5 is provided on the attracting pole surface of the magnet 1, but the sliding resistance SF thereof is half or equal to the attracting force PF. Purpose of the invention The invention aims at: when the attracting magnet is attracted to the object to be attracted,
Without damaging the surface to be attracted when slipping,
The aim is to create an attracting magnet with a sliding resistance SF greater than the attracting force PF. Structure of the invention (1) In the case of rubber magnets A rubber magnet consists of ferrite magnet powder, synthetic rubber,
Flexible hardness made by adding and kneading plastics, etc.
These are shore D38 to D45 magnets. When the magnetic pole of the magnet 1 using the rubber magnet shown in Fig. 1C is directly attracted to the decorative painted steel plate of the object 8, the sliding resistance S.
F is about 50% of the adsorption force PF. In order to increase the friction resistance, as shown in Figure 1D,
When adhering rubber sheets 5 with rubber hardness of 0.6 t mm and 0.4 t mm, the adsorption force PF decreases by 20% at 0.6 t and by 10% at 0.4 t . The sliding resistance SF of 0.4 t is a 13% increase in the adsorption force PF. Furthermore, in order to increase the sliding resistance SF, one side of a 0.4 t nitrile rubber sheet was made into an uneven surface, and the convex part was approximately 0.2 t , as shown in Fig. 1E.
The height of the protrusions and the diameter of the protrusions were 0.8 to 1.3 mm, and 20 to 25 protrusions/cm 2 were provided. When this uneven rubber sheet 6 was adhered to the attracting magnetic pole surface, the slipping resistance SF was approximately twice as high as the attracting force PF. (2) In the case of ferrite magnets Fig. 1C When the attracting magnetic pole surface of a ferrite magnet is directly attracted to the attractively painted steel plate 8, if the ferrite magnet is damaged or the load is large enough to cause slipping. cannot be put to practical use because it will stick to the 8 surfaces of the adsorbed object and cause damage. 1st
Figure B: Sliding resistance SF when a nitrile rubber sheet with a thickness of 0.4 t and a rubber hardness of 45° is adhered to the magnetic pole surface.
is a 20% increase in adsorption force PF. When adhering the same uneven rubber sheet 6 as above to the attracting magnetic pole surface,
A high slip resistance SF that is twice the adsorption force PF was obtained. From the results of (1) and (2), it was found that providing a soft elastic material with irregularities on the attracting magnetic pole surface increases the frictional resistance and significantly increases the sliding resistance SF. DESCRIPTION OF THE EMBODIMENT FIG. 2 AB shows a cross-sectional view of the attraction magnet of the embodiment. In case A, rubber magnets were used for magnets 1 and 1. thickness
Magnets 1 and 1 with a width of 4 t , a width of 15 W , and a length of 90 L are glued to a 1.6 t thick yoke 4 with a gap between them, and this is placed in a rubber mold, and the magnetic pole face of the rubber magnet attracts the magnetic pole surface. The thickness is
0.4 t , and investment molding was performed using nitrile rubber with a rubber hardness of 45 so as to form an uneven surface to obtain Investment Rubber 7. The state of the attracting magnetic pole surface and the attracting force P of this attracting magnet.
The values of F and sliding resistance SF are shown in Table 1.
【表】
なお、ゴムにて埋没した理由は、0.4tの厚さの
ゴムに滑り抗力S.Fが加わるとき、吸着磁石の角
部には伸びと圧縮が加わるので、ゴム磁石の外周
を３mm厚さのゴム厚として角部のゴムの補強をし
ている。
第１表に示す如く、凹凸ゴム部は滑り抗力S.F
を著しく増大、吸着力P.Fの２倍となつている。
第２図Ｂは、磁石１にフエライト磁石を使用
し、厚さ3t、幅10W、長さ25Lの磁石１を９個設
け、この磁石１は、厚さ1t、幅40W、長さ96Lの継
鉄４に間隔を設けて接着し、前記(1)と同様にゴム
金型に入れ、成形を施した。この吸着磁石の吸着
力P.F、滑り抗力S.Fを第２表に示す。比較に凹
凸のない0.4tゴムの値も記す。[Table] The reason why the rubber is buried is that when the sliding drag force SF is applied to the rubber with a thickness of 0.4 t , the corners of the attracting magnet are stretched and compressed, so the outer circumference of the rubber magnet is made 3 mm thick. The rubber at the corners is reinforced to increase the thickness of the rubber. As shown in Table 1, the uneven rubber part has a slip resistance SF
The adsorption force has been significantly increased, and is twice as strong as the adsorption force PF. In Fig. 2B, a ferrite magnet is used as the magnet 1 , and nine magnets 1 each having a thickness of 3 t , a width of 10 W , and a length of 25 L are provided. It was adhered to a yoke 4 having a length of 96 L at intervals, placed in a rubber mold and molded in the same manner as in (1) above. Table 2 shows the attraction force PF and sliding resistance SF of this attraction magnet. For comparison, the values for 0.4 t rubber without unevenness are also listed.
【表】
凹凸のない0.4t厚さのゴムの場合、吸着力P.F
の20％増の滑り抗力S.Fであるが、凹凸とするこ
とによつて滑り抗力S.Fは、吸着力P.Fの２倍へ
と著しく増大した高滑り抗力S.Fとなつている。
他方フエライト磁石の吸着磁極面が硬質ゴムで
覆われているので、被吸着体に吸着させるとき、
被吸着体面に損傷を与えること並びに荷重が大と
なつて、滑りを生ずるときも損傷を与えることは
なくなつている。他方吸着磁石を落下させたと
き、フエライト磁石の欠け、割れはゴムにて覆わ
れているので防止されている。
考案の効果
本考案によつて、吸着磁石の吸着性能は、高滑
り抗力によつて吸着保持の安定性を著しく増大し
たもので、特に傾斜面、壁面等への吸着に有効で
ある。又被吸着面に損傷を与えることがないの
で、化粧塗装スチール機器、磨き鋼板等への吸着
に適するものである。[Table] Adsorption force PF for 0.4 t thick rubber with no unevenness
However, due to the unevenness, the slip resistance SF is significantly increased to twice the adsorption force PF, resulting in a high slip resistance SF. On the other hand, since the magnetic pole surface of the ferrite magnet is covered with hard rubber, when it is attracted to an object to be attracted,
It is no longer possible to cause damage to the surface of the adsorbed object, and even when the load becomes large and slipping occurs, no damage is caused. On the other hand, when the attracting magnet is dropped, chipping and cracking of the ferrite magnet is prevented because it is covered with rubber. Effects of the invention According to the invention, the adsorption performance of the adsorption magnet is such that the stability of adsorption and holding is significantly increased due to the high slip resistance, and it is particularly effective for adsorption to inclined surfaces, walls, etc. Furthermore, since it does not damage the surface to be attracted, it is suitable for adsorption to decorative painted steel equipment, polished steel plates, etc.
第１図A.B.C.Dに従来、Ｅに本考案の吸着磁石
の断面図を示し、第２図A.Bに実施例の高滑り抗
力吸着磁石の断面図を示す。
１……磁石、２……Ｕ型継鉄、３……磁極片、
４……継鉄、５……ゴムシート、６……凹凸ゴム
シート、７……埋没ゴム、８……被吸着体。
FIG. 1 ABCD shows a cross-sectional view of a conventional attracting magnet, and FIG. 2 E shows a cross-sectional view of a high slip resistance attracting magnet of the present invention. 1... Magnet, 2... U-type yoke, 3... Magnetic pole piece,
4... Yoke, 5... Rubber sheet, 6... Uneven rubber sheet, 7... Embedded rubber, 8... Adsorbed object.
Claims (1)
の表面に凹凸部を有する薄い軟質弾性体を設け、
吸着力以上の滑り抗力を持たせたことを特徴とす
る高滑り抗力吸着磁石。 A thin soft elastic body with a thickness of 600 μm or less and a rubber hardness of 50° or less and an uneven surface is provided on the attracting magnetic pole surface.
A high slip resistance adsorption magnet characterized by having a slip resistance that exceeds the adsorption force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14604584U JPH0230807Y2 (en) | 1984-09-26 | 1984-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14604584U JPH0230807Y2 (en) | 1984-09-26 | 1984-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6161813U JPS6161813U (en) | 1986-04-25 |
| JPH0230807Y2 true JPH0230807Y2 (en) | 1990-08-20 |
Family
ID=30704289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14604584U Expired JPH0230807Y2 (en) | 1984-09-26 | 1984-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230807Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2532026Y2 (en) * | 1992-04-01 | 1997-04-09 | 株式会社コスモテック | Articles with magnets and articles made of them |
| JP2001099330A (en) * | 1999-09-27 | 2001-04-10 | Koyo Sealing Techno Co Ltd | Sealing device |
| JP4827430B2 (en) * | 2005-04-08 | 2011-11-30 | 吉原鉄道工業株式会社 | Adhesion measuring instrument |
| JP6721080B2 (en) * | 2019-04-23 | 2020-07-08 | セイコーエプソン株式会社 | Tape printer |
-
1984
- 1984-09-26 JP JP14604584U patent/JPH0230807Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6161813U (en) | 1986-04-25 |
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