JP3619412B2 - Stacked display mechanism - Google Patents

Description

【００３６】

【００３７】
【表１】

（表示片Ｅ及びＦはワードプロセッサのプリンタのプラテンに巻き付かず給紙できない。）
【００３８】
表１から明らかな通り、従来の強磁性体を用いた表示片Ｅ及びＦは複数枚の積層貼着は不可能である。これに対し、表示片Ａ〜Ｄは複数枚積層貼着でき、このうち積層枚数の最も少ない両面仕様の表示片Ｄであっても総厚が２２５μｍと薄いので４枚又は５枚の結果が得られている。また、ワードプロセッサのプリンタによっても円滑に印刷することができる。
【００３９】
【発明の効果】
本発明による積層表示機構は表示基板の表面漏洩磁束により高透磁率材料を用いた表示片を積層貼着するため、表示基板に用いた磁石の着磁方向や極間に拘らず自由な方向に向けて貼着することができ、着脱及び一部引き抜きも容易に行うことができる。更に、表示片は厚さが薄く軽量であるため、複数枚を積層しても総厚さが積層枚数に比べて薄く安定した積層貼着をすることができる。
【００４０】
表示片自体は残留磁気を有しないので表示片同士を多数積層するときも、紙同様に周囲を揃えて重ねることができ、磁気記録媒体と接触しても磁気障害を生ずるおそれが全くない。また、表示片は複写機、ワードプロッセッサ、パーソナルコンピュータのプリンタによっても印刷することができる等の効果を有する。
【図面の簡単な説明】
【図１】本発明の基本構成を示した断面図。
【図２】本発明に用いた表示片の一例で、両面に装飾層を有する断面図。
【図３】実施例１の断面図。
【図４】（Ａ）は実施例２の断面図。（Ｂ）は表示片の拡大断面図。
【図５】従来例の断面図。
【図６】従来例の断面図。
【符号の説明】
１、１１ 板状基体
３、１３ 表示基板
４、１４ シート状磁石
５、１５ 表示基板の装飾層
７、１６ 表示片
８、１７ 薄層強磁性体
９、１８ 表示片の装飾層[0001]
BACKGROUND OF THE INVENTION
The present invention is capable of stacking and detaching a plurality of display pieces on a display board surface used for a bulletin board, white board, explanation board, etc. The present invention relates to a multilayer display mechanism that can be used.
[0002]
[Prior art]
Conventionally, as a display means for laminating display pieces on a display substrate, a structure in which display pieces made of sheet magnets with multipolar magnetization are sequentially attached to a display substrate made of a ferromagnetic material such as an iron plate is shown in FIG. As shown in FIG. 6, the substrate 21 having the decoration layer 20 on the surface and the display piece 22 are both formed by sheet-like magnets subjected to multipolar magnetization and are laminated so that the different polarities of the magnets face each other. There is a configuration in which a sheet-like ferromagnetic material 23 is interposed between two sheet-like magnets constituting the base 21 and the display piece 22.
[0003]
[Problems to be solved by the invention]
As shown in FIG. 5, in the display mechanism for sequentially laminating and sticking the display pieces 22 made of sheet magnets subjected to multipolar magnetization, the magnetic poles on the back surface of the display piece 22 previously attached face opposite poles. Therefore, the direction of attaching the display piece 22 is limited to the direction parallel to the magnetic pole, and the direction and position cannot be determined freely. Further, the structure in which the sheet-like ferromagnetic material 23 is interposed between the display substrate 21 and the display piece 22 using the sheet-like magnet has a drawback that it needs a thickness that can almost shield the leakage magnetic flux of the sheet-like magnet. . Furthermore, since the sheet-like magnet needs a thickness of about 0.5 to 1 mm in order to obtain a necessary attracting force, any of the above conventional examples has a drawback that the total thickness is increased when the display pieces 22 are laminated. Since printing is thick and heavy, it is difficult to print directly except for screen printing.
[0004]
On the other hand, when storing the display piece 22 to be used by being stacked on the display substrate 21, the display pieces using the sheet-like magnets are attracted to each other, so that it is difficult to align the four sides, and it is particularly difficult to stack a large number of sheets. It is almost impossible and has the disadvantage of deforming when stored for a long period of time.
[0005]
The present invention eliminates the conventional drawbacks as described above, the thickness of the display piece is remarkably thin, a large number of display pieces can be laminated with their peripheral edges aligned, and the display pieces can be attached in any direction and position. Therefore, an object of the present invention is to obtain a laminated display mechanism that can keep the total thickness thin even when multiple laminated.
[0006]
[Means for solving problems]
The display mechanism according to the present invention includes a sheet-like magnet attached on a plate-like substrate made of a ferromagnetic material or a non-magnetic material, the surface or front and back surfaces of which are subjected to multipolar magnetization , and the surface side of the sheet-like magnet. A thin layer ferromagnetic body having a thickness of 15 to 100 μm comprising a low coercivity high permeability material fine powder and an organic polymer binder on the surface of a display substrate comprising a decorative layer provided on the substrate Display pieces provided with a decorative layer that can be printed or handwritten on one or both sides and have a total thickness of 40 to 250 μm are magnetically attracted by the leakage magnetic flux from the display substrate, and are divided into a plurality of pieces by the back leakage magnetic flux due to magnetic saturation. It is constructed so that multiple attachments can be made over and removal is possible against the magnetic attraction . By using a high permeability material with low coercive force as the thin-layer ferromagnet of the display piece, it is possible to obtain a magnetic attraction force that can hold its own weight, and the back leakage magnetic flux due to magnetic saturation is large, so multiple sheets are sequentially The display piece can be adsorbed by stacking.
[0007]
The sheet-like magnet used for the display substrate may be a ferrite-based or rare-earth-based permanent magnet, and a bond magnet or a sintered magnet can be used. Of these, flexible bonded magnets can be easily obtained in large areas, and since they do not crack or chip, they are easy to cut and easy to attach and detach to the adherend, making them ideal for display substrates. It is. The thickness of the sheet-shaped magnet varies depending on the magnet material and between the magnetic poles, but the distance between the poles is about 1.0 to 7.0 mm and the thickness is about 0.1 to 3.0 mm.
[0008]
The thin layer magnetic body used for the display piece is formed by forming a low coercive force high permeability material fine powder and an organic polymer binder in a thin layer. Examples of the high magnetic permeability material fine powder include known sendust type (Fe · Al · Si type) permalloy type (Ni · Fe type) amorphous alloy type (Co · Fe · Si type, Co · Zr · Ta type, Fe System) and pure iron can be used.
[0009]
The laminated display mechanism according to the present invention integrates a thin layer that can be printed or handwritten as a decorative layer of a display piece to be attached to and detached from a display substrate, thereby copier, ink jet printer, dot printer, laser printer, thermal printer on the display piece. It can be printed or handwritten by a general printer.
[0010]
The thickness at which the thin layer ferromagnetic material can obtain an appropriate magnetic attractive force is about 15 to 150 μm, and if the thickness is more than this, a decrease in the number of multiple attachments cannot be avoided. Plastic films, paper, synthetic paper, metal foil, paint films, etc. can be used as the surface decoration layer that can be displayed on display substrates and display pieces, or thin films that can be copied, printed and handwritten, and the thickness is 200 μm or less. In the case of 200 μm or more, the influence of the air gap on the magnet is large, and the magnetic attractive force is reduced, which is not preferable.
[0011]
Therefore, the thickness of the decorative layer that can be printed, copied, or handwritten is selected so that the thickness of the thin ferromagnetic layer of the display piece is 15 to 100 μm and the total thickness of the display piece is 40 to 250 μm. The most appropriate thickness of the decorative layer itself is 25 to 150 μm.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a cross-sectional view showing the basic configuration of the present invention. Reference numeral 1 denotes a plate-like substrate, which is formed of a ferromagnetic material such as an iron plate or ferritic stainless steel, or a nonmagnetic material such as wood or gypsum board. A display substrate 3 is formed by integrally adhering a decoration layer 5 to the surface of the sheet-like magnet 4, and is fixed to the plate-like substrate 1 with an adhesive 6.
[0013]
When the plate-like substrate 1 is made of a ferromagnetic material and the sheet-like magnets 4 are magnetized on both sides, the plate-like substrate 1 and the display substrate 3 can be attached by magnetic attraction, and the adhesive 6 is not required. When the sheet-like magnet 4 is magnetized on one side and the magnetic pole formation on the back side is weak, or when the plate-like substrate is a non-magnetic material, it is stuck via an adhesive layer.
[0014]
As the sheet magnet used for the display substrate 3, a bond magnet or a sintered magnet can be used, and a flexible bond magnet is optimal. Examples of flexible bonded magnets include fine powders of rare earth magnet materials such as fine powders of ferrite magnet materials such as barium ferrite and strontium ferrite, or samarium / cobalt magnets and neodymium / iron / boron magnets. High molecular elastomers (for example, chlorinated polyethylene, chlorosulfonated polyethylene, ethylene / vinyl acetate copolymer, ethylene / propylene rubber, nitrile rubber, acrylic rubber, chloroprene rubber, etc.) are molded into a sheet as a binder and magnetized. Can be used.
[0015]
Reference numeral 7 denotes a display piece which can be freely attached to and detached from the decorative layer 5 surface of the display substrate 3, and is provided on one or both surfaces of the thin ferromagnetic material 8 made of a low coercive force high permeability material fine powder and an organic polymer binder. 9 is pasted.
[0016]
FIG. 2 is a cross-sectional view of the display piece 7 formed by adhering the decoration layer 9 on both surfaces of the thin-layer ferromagnetic material 8. The display piece 7 can selectively use a display layer 7 having a decoration layer 9 on one side and a double-sided display as needed. Moreover, since the total thickness of the display piece is as thin as 40 to 250 μm, not only one display piece 7 can be attached to the surface of the display substrate 3 but also a plurality of pieces can be laminated and attached to both sides and one side. It is also possible to laminate and paste the specification one.
[0017]
In the present invention, known high-permeability materials for the thin-layer ferromagnet 8 used in the display piece 7 are known Sendust (Fe / Al / Si) permalloy (Ni / Fe) and amorphous alloy (Co / Fe / Si). Series, Co.Zr.Ta series, Fe series, etc.) and pure iron can be used. Examples of the organic polymer binder include known thermoplastic elastomers (chlorinated polyethylene, chlorosulfonated polyethylene, ethylene / vinyl acetate copolymer, ethylene / propylene rubber, nitrile rubber, acrylic rubber, chloroprene rubber, polyurethane rubber). Etc.) Thermoplastic resins (polyurethane resins, vinyl chloride resins, fiber base resins, polyamide resins, etc.) and crosslinkable resins (epoxy resins, alkyd resins, etc.) can be used.
[0018]
In addition, the ratio of the high permeability material fine powder to the organic polymer binder is such that the high permeability material fine powder is compared to the total amount of both materials from the viewpoints of performance and workability required for the thin-layer ferromagnetic material 8. The content ratio is preferably 30 to 70% by volume.
[0019]
The thin layer ferromagnetic body 8 is formed by kneading the material in the same manner as in the known bonding magnet molding method, and then extrusion molding, rolling molding, cast molding, or a plastic film, paper, or metal foil used for the surface decoration layer as a base. It can be formed by coating. The thickness of the thin ferromagnetic layer that can be stably stuck on the magnetized surface is about 15 to 150 μm. Below that, the attractive force due to magnetism is insufficient, and above that, the number of sheets that can be multiply attached is reduced.
[0020]
[Example 1]
FIG. 3 is a cross-sectional view showing a first embodiment of the present invention, which has a structure in which a plate-like substrate and an exterior are combined. The same reference numerals as those in FIG. 1 denote the same components. A wooden plate-like substrate 1 (length 400 mm × width 500 mm) has a standing portion 2 in a frame shape along the periphery, and also serves as an exterior. The display substrate 3 is a display substrate formed by integrally adhering a decoration layer 5 to the magnetized surface side of the sheet-like magnet 4, and is fixed to the surface side of the plate-like substrate 1 with an adhesive 6. The sheet magnet used in this example has an isotropic strontium ferrite flexible bond magnet thickness of 0.7 mm and a multipolar magnetization pitch of 3.0 mm, and the decorative layer 5 has a vinyl chloride resin film thickness of 0. .1mm is used.
[0021]
A plurality of display pieces 7 are laminated and attached to the display substrate 3 in a detachable manner. The display piece 7 is obtained by adhering a decoration layer 9 on one surface or both surfaces of a thin-layered ferromagnetic material 8 made of a low coercivity high permeability material fine powder and an organic polymer binder. The maximum number of stacked display pieces 7 on the display substrate 3 varies depending on the composition, thickness, and the like.
[0022]
Specific examples of the display piece used in Example 1 will be shown below.
Display piece A
High permeability material Permalloy (Ni 78.5% Fe 21.5%) 100 parts by weight (average particle diameter 10 μm 47% by volume based on the total amount)
Binder, ethylene / vinyl acetate copolymer 13 parts by weight [ethylene 40 wt%, Mooney viscosity 18 ± 5 / JIS K-6300ML1 + 4 (100 ° C.)]
Lubricant Calcium stearate 0.2 parts by weight Antioxidant 2.2 Methylbis (4-methyl-6 butylphenol) 0.3 parts by weight
The thin layer ferromagnetic used for the display piece is obtained by kneading the above blended material at 150 ° C. for 15 minutes with a pressure kneader and then using an extruder with a cylinder diameter of 60 mmL / D14, using a screw tip of 160 ° C. and a fishtail die of 190 ° C. In this state, immediately after extrusion to a thickness of 80 μm and a width of 300 mm, a two-roll having a diameter of 200 mm is rolled to a thickness of 25 μm to form an original fabric.
[0024]
As a decorative layer that can be printed and handwritten on the display piece, an ethylene / vinyl acetate copolymer hot melt adhesive is applied in advance to the back surface of a high-quality paper having a thickness of 100 μm. Crimp between hard chrome-plated iron roll / rubber roll. The total thickness after bonding is 125 μm. Next, the display piece A is completed by cutting into a predetermined size as a display piece.
[0025]
Display piece B
High permeability material Sendust (Al 5.5% Si 9.5% Fe 85%) 100 parts by weight (average particle size 10 μm 49% by volume based on the total solid content)
Bonding agent 9 parts by weight of vinyl chloride / vinyl acetate copolymer (containing 0.25% sulfonic acid group, degree of polymerization 450)
Binder Polyester polyurethane 7 parts by weight (containing 0.1% sulfonic acid group)
Solvent Methyl ethyl ketone 45 parts by weight Solvent Cyclohexanone 45 parts by weight Toluene 30 parts by weight
After kneading for 48 hours with the above blending by a ball mill, 3 parts by weight of tolylene diisocyanate curing agent is added and further kneaded for 20 minutes to complete the coating solution. Next, the coating liquid is applied by a reverse roll coater using a polyethylene terephthalate film having a thickness of 100 μm as a base material so that the thickness after drying becomes 25 μm, and dried in a heating drying oven with hot air of 60 to 100 ° C. . The polyethylene terephthalate film is opaque white and can be printed or handwritten. The polyethylene terephthalate film is integrated with the thin ferromagnetic layer by drying the coating solution to complete a 125 [mu] m thick display piece original. The original fabric is cut into a predetermined size to complete the display piece B.
[0027]
Display piece C
High permeability material Reduced iron powder 100 parts by weight (average particle size 15 μm 51% by volume with respect to the total solid content)
Binder, 8 parts by weight of vinyl chloride / vinyl acetate copolymer (containing 0.25% sulfonic acid group, degree of polymerization 450)
Binder Polyester Urethane 5 parts by weight (containing 0.1% sulfonic acid group)
Solvent Methyl ethyl ketone 35 parts by weight Solvent Cyclohexanone 35 parts by weight Toluene 30 parts by weight [0028]
With the above blending, 2 parts by weight of tolylene diisocyanate curing agent is added to the curing agent in the same process as display piece B, and the coating liquid is completed. The display piece C is completed through the process.
[0029]
Display piece D
The display piece D has a decorative layer that can be printed or handwritten on both sides. First, a coating solution was completed according to the same formulation and process as the formulation example shown in the display piece B, and the polyethylene terephthalate film and the thin layer ferromagnetic material were integrated through a coating and drying process in the same manner as the display piece B. Form the original fabric. Further, the high quality paper used for the display piece A is adhered to the ferromagnetic surface of the original fabric. That is, an ethylene / vinyl acetate copolymer hot melt adhesive is applied to the back surface of the high-quality paper in advance, and the high-quality paper and the thin-layered ferromagnetic surface are bonded and bonded between a heated iron roll and a rubber roll, The display piece D is completed.
[0030]
[Example 2]
FIG. 4A is a cross-sectional view showing a second embodiment of the present invention, which has a structure using a sheet magnet with double-sided magnetization on the display substrate. FIG. 4B is an enlarged cross-sectional view of the display piece used in FIG. 10 is an exterior, 11 is a plate-like substrate made of an iron plate fixed to the exterior 10 with an adhesive 12, and 13 is a display substrate in which a decorative layer 15 is integrally attached to one side of a sheet magnet 14 that is magnetized on both sides. Thus, the plate-like substrate 11 is adsorbed and fixed by a magnetic force.
[0031]
The sheet magnet used in this example has an isotropic strontium ferrite flexible bond magnet thickness of 0.7 mm and a multipolar magnetization pitch of 3.0 mm, and the decorative layer 15 has a vinyl chloride resin film thickness of 0. .1mm is used. Reference numeral 16 denotes a display piece that is detachably attached to the display substrate 3, and a decorative layer 18 is provided on one or both sides of the thin-layer ferromagnetic material 17 made of a low coercive force high permeability material fine powder and an organic polymer binder. In this example, display pieces A to D shown in Example 1 are used.
[0032]
Reference Examples As for Examples 1 and 2 and a comparative example, display pieces E and F in which a decorative layer is provided on a ferromagnetic material made of a conventional low-coercivity and high permeability material, the display piece on the surface of the display substrate by the following method Table 1 shows the number of sheets that can be laminated and the suitability of the printer.
[0033]
Laminate Adhesion Test Display device is installed so that the surface of the display substrate is vertical, A-4 size display pieces are stuck one by one, and the last number that does not fall off is obtained.
[0034]
Printer suitability Using an OASYS30-LX701 type word processor printer manufactured by Fujitsu Limited, printout is performed with an A-4 size display piece.
[0035]

[0036]

[0037]
[Table 1]

(The display pieces E and F are not wrapped around the platen of the word processor printer and cannot be fed.)
[0038]
As is clear from Table 1, the display pieces E and F using a conventional ferromagnetic material cannot be laminated and laminated. On the other hand, a plurality of display pieces A to D can be laminated, and even if the display piece D has a double-sided specification with the fewest number of laminated sheets, the total thickness is as thin as 225 μm, so that four or five results are obtained. It has been. It can also be printed smoothly by a word processor printer.
[0039]
【The invention's effect】
Since the laminated display mechanism according to the present invention laminates and attaches display pieces using a high magnetic permeability material due to surface leakage flux of the display substrate, it can be freely oriented regardless of the magnetizing direction of the magnet used for the display substrate and between the electrodes. It can be attached and attached / detached and partly pulled out. Furthermore, since the display piece is thin and light, even when a plurality of sheets are stacked, the total thickness can be reduced and stable compared with the number of stacked sheets.
[0040]
Since the display pieces themselves do not have residual magnetism, even when a large number of display pieces are stacked, they can be stacked with the periphery aligned like paper, and there is no possibility of causing a magnetic failure even if they come into contact with the magnetic recording medium. The display piece can be printed by a copying machine, a word processor, or a printer of a personal computer.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a basic configuration of the present invention.
FIG. 2 is a cross-sectional view showing an example of a display piece used in the present invention and having a decoration layer on both sides.
3 is a sectional view of Example 1. FIG.
4A is a sectional view of Example 2. FIG. (B) is an expanded sectional view of a display piece.
FIG. 5 is a cross-sectional view of a conventional example.
FIG. 6 is a cross-sectional view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 11 Plate-like base | substrate 3, 13 Display substrate 4, 14 Sheet-like magnet 5, 15 Display substrate decoration layer 7, 16 Display piece 8, 17 Thin layer ferromagnetic material 9, 18 Decoration layer of display piece

Claims (1)

A sheet-like magnet attached to a plate-like substrate made of a ferromagnetic material or a non-magnetic material, the surface or front and back surfaces of which are subjected to multipolar magnetization , and a decorative layer provided on the surface side of the sheet-like magnet; Printed on one or both sides of a thin ferromagnetic layer having a thickness of 15 to 100 μm consisting of a low coercivity high permeability material fine powder and an organic polymer binder on the surface of a display substrate comprising A display piece provided with a decorative layer that can be handwritten and has a total thickness of 40 to 250 μm can be stuck on a plurality of sheets by back leakage magnetic flux due to magnetic saturation while being magnetically attracted by leakage magnetic flux from the display substrate. Layered display mechanism characterized in that it can be removed against the magnetic attraction

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