Panel with a soft magnetic plane and method for installing said panel on a non-magnetic wall surface

Abstract

To provide a panel having a soft magnetic material plane for changing a non-magnetic wall surface such as a gypsum board or a wooden wall which is not attracted by a magnet originally into a wall surface attracted by the magnet, which has a simple structure, is lightweight, can be manufactured at a low cost, and can be easily installed on the non-magnetic wall surface.SOLUTION: A panel P1 includes a thin soft magnetic plate made of a soft magnetic material, and has a triangular or polygonal plane 4. At least two sides of the plane 4 each have a side surface 7b bent at an angle of 20 degrees or more and 60 degrees of less from the plane 4, and the soft magnetic plate forming the side surface 7b is further bent so as to be parallel to the plane 4 to form a bottom 8b.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a panel having a flat surface made of soft magnetic material and a method for installing the panel on a non-magnetic wall, and more particularly to a panel having a flat surface that can hold an item by magnetic attraction, and a method for installing the panel on a non-magnetic wall to transform the non-magnetic wall into a surface that can attract a magnet. [Background technology]

[0002] Magnetic panels have become popular in recent years. Magnetic panels are wall materials that can be attracted to magnets. When used as a wall surface, they can be used to detachably fasten items such as picture frames, whiteboards, and shelves with magnets attached to the backside. Magnetic panels do not require parts such as mounting brackets to fasten these items, and no tools are required for fastening, so the original state of the wall surface can be maintained while allowing for free and easy rearrangement (see Patent Document 1). Magnetic panels are achieved by, for example, attaching or mounting a soft magnetic material to a non-magnetic substrate. The panels are said to be flame-retardant or non-combustible, and the non-magnetic substrate provides the panel's rigidity. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-36650 [Patent Document 2] Utility Model Registration No. 3140291 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] On the other hand, the main method for transforming non-magnetic wall surfaces, such as gypsum board or wooden walls, which are not originally magnet-attractive, into walls that are magnet-attractive is to fasten magnetic panels to the existing non-magnetic wall with screws or nails. For example, Patent Document 2 discloses a wall structure capable of attaching heavy objects to walls made of gypsum board or other materials with high strength. In this wall structure, fixing pins are driven at an angle, and metal fittings with pilot holes for guides are attached and driven in. This technique can also be used to attach the magnetic panels mentioned above, but the additional metal fittings increase the number of parts, making the structure more complicated and increasing the overall weight and cost. Furthermore, it is time-consuming to drive the pins at the appropriate angle.

[0005] The present invention has been made in light of the above circumstances, and aims to provide a panel having a soft magnetic plane that transforms non-magnetic wall surfaces such as gypsum boards and wooden walls, which magnets would not normally be attracted to, into walls that do attract magnets, with a simple structure, lightweight, and inexpensive to manufacture, and that can be easily installed on non-magnetic wall surfaces. [Means for solving the problem]

[0006] The present invention takes the following measures to solve the above problems. Note that the reference symbols in parentheses attached to each component means in this section (the "Means for Solving the Problems" section) are for reference purposes only to show the correspondence with the specific means described in the representative embodiments described below, and do not limit the components of the present invention to these.

[0007] One aspect of the present invention is a panel (P1, P2, P3) comprising a thin soft magnetic plate made of a soft magnetic material, characterized in that it has a triangular or polygonal plane (4, 41), and each of the sides (7, 71) is bent at least on two sides of the plane (4, 41) from the plane (4, 41) at an angle of 20 degrees to 60 degrees, and the soft magnetic plate forming the side (7, 71) is further bent so as to be parallel to the plane (4, 41) to form a bottom surface (8, 81).

[0008] In another aspect of the present invention, the side surface (7, 71) is provided with a small hole (3, 31) penetrating the side surface from the front surface to the back surface.

[0009] In another aspect of the present invention, the tip (80, 810) of the bottom surface (8, 81) is located in a direction perpendicular to the side surface (7, 71) from the position of the small hole (3, 31) provided in the side surface (7, 71).

[0010] In another aspect of the present invention, the panels (P1, P2, P3) are made by processing soft magnetic plates according to the development plan thereof, such as by punching, and then bending the soft magnetic plates.

[0011] Another aspect of the present invention is characterized in that a reinforcing material (2, 21) such as plastic, its foam, or wood is attached to the back side of the flat surface (4, 41).

[0012] In another aspect of the present invention, the surface of the soft magnetic plate is coated or painted.

[0013] Another aspect of the present invention is characterized in that an opening (16) is provided in a part of the plane (4) of the soft magnetic plate, and a ferromagnetic sheet (40) is adhered to a non-opening part (17) in the plane (4) so ​​as to cover this opening (16).

[0014] In another aspect of the present invention, there is provided a method for installing a panel (P1, P2, P3) on a non-magnetic wall surface (5, 51), characterized in that the tip of a pin (6) or nail is passed through a small hole (3, 31) in the side surface (7, 71) and locates the tip (80, 810) of the bottom surface (8, 81) and then the pin (6) or nail is pressed into the non-magnetic wall surface (5, 51). [Effects of the Invention]

[0015] According to the present invention, a panel having a soft magnetic plane that transforms a non-magnetic wall surface such as a plasterboard or wooden wall, which is not originally magnet-attractive, into a wall surface to which a magnet can be attracted, has a simple structure, is lightweight, can be manufactured at low cost, and can be easily installed on a non-magnetic wall surface. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is an external perspective view showing an example of use of a panel according to a first embodiment of the present invention. [Figure 2] 1A and 1B are perspective views showing the structure of a panel of a first embodiment, in which FIG. 1A shows a view from the front side and FIG. 1B shows a view from the back side. [Figure 3] 1A and 1B are two-dimensional views of the panel of the first embodiment as viewed from three directions, in which (a) is a front cross-sectional view, (b) is a plan view as viewed from the front side, and (c) is a bottom view as viewed from the back side. [Figure 4] 10A to 10C are side cross-sectional views showing the procedure for installing the panel of the present invention on a non-magnetic wall surface. [Figure 5] FIG. 10 is a side cross-sectional view illustrating the state when an article is attached to the panel by a magnet after installation. [Figure 6] FIG. 10 is a development view of a soft magnetic sheet of a panel according to a second embodiment. [Figure 7] 10 is a perspective view showing a state in which a panel of a second embodiment is installed on a non-magnetic wall surface that forms the side surface of a cylinder. FIG. [Figure 8] 10A and 10B are perspective views of a panel according to a third embodiment, in which FIG. 10A shows an external view and FIG. [Figure 9] 10A and 10B are perspective views of modified examples of the main body used in the panel of the third embodiment, in which FIG. 10A shows a first modified example, and FIG. 10B shows a second modified example. [Figure 10] 1A and 1B are perspective views showing a panel removal aid, in which FIG. 1A shows a state when the panel is not being removed, and FIG. 1B shows a state when the panel is being removed. DETAILED DESCRIPTION OF THE INVENTION

[0017] [First embodiment] FIG. 1 is a perspective view showing an example of the use of a panel P1 according to a first embodiment of the present invention. FIG. 2 is a perspective view showing the structure of the panel P1 according to the first embodiment, where (a) is a view from the front side, i.e., the side where an item is magnetically attracted, and (b) is a view from the back side, i.e., the side that contacts a non-magnetic wall. FIG. 3 is a two-dimensional view of the panel P1 according to the first embodiment as viewed from three directions: (a) is a front cross-sectional view, (b) is a plan view of the panel P1 in (a) as viewed from the front side, i.e., the direction of the arrow A, and (c) is a bottom view of the panel P1 in (a) as viewed from the back side, i.e., the direction of the arrow B. FIG. 4 is a side cross-sectional view showing the procedure for installing the panel P1 according to the present invention on a non-magnetic wall surface 5, and FIG. 5 is a side cross-sectional view illustrating the state of the panel P1 after installation when an item L is magnetically tethered to the panel P1. Note that hatching has been omitted from the cross-sectional views. Furthermore, in these drawings, the covering materials and paint on the panel surface are omitted. Furthermore, even if the same numeral is used, for parts that are easier to distinguish in explanation or in relation to other drawings, a lowercase alphabet such as "a" or "b" is added immediately after the numeral. Furthermore, in this specification, "magnetic attraction" may be simply referred to as "magnetic adhesion."

[0018] As shown in Figure 1, panel P1 is attached to a non-magnetic wall surface 5 such as a plasterboard or wooden wall to transform a wall surface that would not normally attract magnets into one that does, in other words, a wall surface (magnetic wall surface) that uses magnetic attraction to hold an item L, and as shown in Figures 2 and 3, it has a main body 1 and a reinforcing material 2. The item L may be an item with a magnetic sheet or sintered magnet attached to the backside, such as a hook, accessory, or small item shelf. The main body 1 is made of a soft magnetic plate of a predetermined thickness, and as shown in Figures 2 and 3, has a plane 4, side surfaces 7a arranged as a pair on both the top and bottom of the plane 4, side surfaces 7b arranged as a pair on both the left and right of the plane 4, bottom surfaces 8a arranged as a pair on the top and bottom of the plane 4, and bottom surfaces 8b arranged as a pair on the left and right of the plane 4.

[0019] The soft magnetic plate used in the present invention is made of magnetic steel (for example, SS400), magnetic stainless steel (for example, SUS416), etc., and although there are no particular limitations on its thickness, a thickness of 0.2 to 0.5 mm is particularly preferred. A thick sheet has sufficient mechanical strength, but is difficult to process into panels and is heavy, which is undesirable. Conversely, a thin sheet is lightweight and easy to punch and bend, but tends to reduce mechanical strength and the magnetic attraction of the permanent magnet to the panel, making it difficult to achieve the object of the present invention. In the examples described below, a rolled magnetic steel plate with a thickness of 0.35 mm was used.

[0020] The soft magnetic plate may be surfaced or painted before being processed into a panel, but may also be surfaced or painted in the finishing stage after processing. However, if the thickness of the surface material or coating exceeds 0.2 to 0.3 mm, the magnetic attraction force may decrease depending on the type of permanent magnet that is magnetically attached to the panel.

[0021] As shown in FIG. 3, the plane 4 has a rectangular shape with long sides 40a and short sides 40b, and the front side is the surface that attracts the magnet. The pair of side surfaces 7a are inclined at a certain angle (approximately 50 degrees, see θ in FIG. 5) by bending the opposing long sides 40a on the plane 4 toward the rear side, forming an isosceles trapezoidal shape that widens when viewed from the long sides 40a. The pair of side surfaces 7b are inclined at a certain angle (approximately 50 degrees) by bending the opposing short sides 40b of the plane 4 toward the rear side, forming an isosceles trapezoidal shape that widens as viewed from the short sides 40b. These angles are approximately 50 degrees, but may be any angle between 20 and 60 degrees. The pair of bottom surfaces 8a are parallel to the plane 4 by bending the opposing long sides 70a of the side surfaces 7a backward, and form an isosceles trapezoidal shape tapering toward the end when viewed from the long sides 70a. The pair of bottom surfaces 8b are parallel to the plane 4 by bending opposing short sides 70b of the side surface 7b backward, and form an isosceles trapezoidal shape tapering toward the end when viewed from the short sides 70b.

[0022] Here, the pair of bottom surfaces 8a and the pair of bottom surfaces 8b are on the same plane parallel to plane 4. The side surfaces 7a and 7b each have small holes 3a and small holes 3b that penetrate from the front to the back at a 90-degree angle. The upper side surface 7a has five small holes 3a that are evenly spaced along a straight line that follows the length of the isosceles trapezoid, while the lower side surface 7a has three small holes 3a that are evenly spaced along a straight line that follows the length of the isosceles trapezoid. The left and right side surfaces 7b each have three small holes 3b that are evenly spaced along a straight line that follows the length of the isosceles trapezoid.

[0023] 5, tip 80a of bottom surface 8a is positioned in the direction perpendicular to side surface 7a from small hole 3a, and tip 80b of bottom surface 8b is positioned in the direction perpendicular to side surface 7b from small hole 3b. In other words, tip 80a of bottom surface 8a is positioned in the direction of central axis 14a of small hole 3a, and tip 80b of bottom surface 8b is positioned in the direction of central axis 14b of small hole 3b. The small holes 3a and 3b are holes for inserting pins 6 (see FIG. 4) that are sharp and have a large-diameter head at the rear end, for fixing to the non-magnetic wall surface 5.

[0024] The reinforcing material 2 is incorporated into the back side of the flat portion of the panel P1. The reinforcing material 2 is a plate material such as plastic, its foam, or wood, and preferably has a low specific gravity. The reinforcing material 2 is a plate-like body that prevents the flat surface 4 from collapsing unstably and is fixed to the back of the flat surface 4 with, for example, double-sided adhesive tape or glue, thereby increasing the mechanical strength of the panel P1. The reinforcing material 2 has a rectangular bottom surface that can be formed by the ends 80a, 80b of the bottom plate 8 on the back side (see Figure 3) or a slightly smaller area.

[0025] Next, a method for installing the panel P1 of the present invention on the non-magnetic wall surface 5 will be described. In Figure 4, once you have determined the position on the non-magnetic wall surface 5 where you will install the panel P1 of the present invention, support the panel P1 with one hand while inserting the pin 6 into the small hole 3a in the side surface 7a with the other hand, and locate the tip of the pin 6 at the tip 80a of the bottom surface 8a. At this time, make sure that the pin 6 is approximately perpendicular to the side surface 7a where the small hole 3a is drilled. Once this is confirmed, push the head of the pin 6 vertically toward the side surface 7a. You can ask someone else to push or drive the pin in, but if the non-magnetic wall surface 5 is plasterboard, for example, you can place a 10-yen coin on it and push it in with your finger.

[0026] The pin 6 at the bottom of FIG. 4 is shown pressed into the non-magnetic wall surface 5 . FIG. 5 shows a state in which the panel P1 is installed on a non-magnetic wall surface 5, and a relatively light weight W of an article L moored to the panel P1 hangs downward. Because the soft magnetic plate has rigidity, the weight W is transmitted to the pin 6 that is in contact with the tip 80a of the bottom surface 8a, and is supported by the pin 6 that is fixed to the wall surface. Here, the pin 6 is angled upward by more than 20 degrees relative to the wall surface, so it can provide firm support.

[0027] It is preferable to provide many small holes 3 for passing the pins 6 on the upper (vertical) side surface 7a of the installed panel P1, because the more pins 6 that are pushed in, the greater the load-bearing capacity. On the other hand, it is important to fasten at least the other side surfaces 7 with pins 6. This is because panel P1 will be fastened at the vertices of a triangle formed by the two ends of the pins 6 aligned in a straight line above plane 4 and other points that are not on the straight line. For this reason, pins 6 are passed through the small holes 3a on the lower side surface 7a and the small holes 3b on side surface 7b in the same manner.

[0028] The panel P1 of the present invention is made by cutting a magnetic steel plate or magnetic stainless steel plate of a predetermined thickness into a predetermined shape using laser irradiation or punching, and then bending it in sequence. The small holes 3 to be provided on the side surfaces 7 are also opened at this time.

[0029] The plane 4 of the panel P1 of the present invention is bounded by at least two straight edges, namely, the long side 40a and the short side 40b. Its shape may be a square, rectangle, rhombus, or polygon with pentagons or more, or a triangle, but it may also have curved portions. The incorporation of curved lines allows for a variety of design expressions, resulting in more impactful wall designs and exhibits. However, the portions corresponding to the sides of the curved portions are physically impossible to achieve by simple bending, and require additional ingenuity. It is also an option to not form the side surfaces 7.

[0030] As described above, the panel P1 of the present invention is based on the premise that the pins 6 are pressed into the non-magnetic wall surface 5 to secure it, but since the back surface of the bottom surface 8 is flat, it can be conveniently and easily installed on a wall surface where the pins 6 are not useful, using a double-sided adhesive sheet or adhesive.

[0031] Before installing the panel P1 on a non-magnetic wall, it is preferable to apply protective tape 13 (see FIG. 1) to the areas 12 adjacent to the edges of the soft magnetic plate, the folded areas 10, and the areas 9 adjacent to the folded areas (see FIGS. 3(b) and 3(c)). This is to prevent injuries caused by burrs and corners that may occur during the manufacturing of the panel P1 during installation.

[0032] Thus, with panel P1, by passing pin 6 through small hole 3 in side surface 7, locating tip 80 on bottom surface 8, and pushing it in at this point, the angle of inclination of pin 6 can be adjusted appropriately, making installation work reliable and easy. Also, flat surface 4, which serves as the magnetic attraction surface, and side surface 7, which is the part for fixing flat surface 4, are made from a single piece, making the structure simple, lightweight, and inexpensive to manufacture.

[0033] Second Embodiment The panel of the present invention can be adapted to the side surface of a cylindrical pillar. Fig. 6 is a development view of the main body 11 of the panel P2 of the second embodiment. Fig. 7 is a diagram showing the state in which the panel P2 of the second embodiment is installed on a non-magnetic wall surface 51 that forms the side surface of a cylinder. The main body 11 in the development view shown in Fig. 6 is made of the same material as that used in the first embodiment.

[0034] As shown in FIG. 7, the panel P2 has a main body portion 11 and a reinforcing member 21. As shown in the development diagram of Fig. 6, the main body 11 has a flat surface 41, a side surface 71a provided above the flat surface 41, a pair of side surfaces 71b provided as a pair on both the left and right sides of the flat surface 41, a bottom surface 81a provided at the end of the side surface 71a, and a pair of bottom surfaces 81b provided as a pair on both the left and right sides at the end of the pair of side surfaces 71b. This development diagram is folded to form the following approximately flat shape. Note that in the description of Figs. 6 and 7, the surface designated by the reference numeral "41" is not strictly a flat surface but the side surface of a cylinder, i.e., a "curved surface," but for convenience, it will be referred to as a "flat surface" in this specification.

[0035] The plane 41 is a rectangular plane body, and the front side serves as a magnetic attraction surface for the magnet. The side surface 71a is bent backward at the center of one long side of the plane 41 at a constant angle (about 50 degrees), forming an isosceles trapezoidal shape tapering toward the end when viewed from the long side. The pair of side surfaces 71b are formed by bending opposing short sides of the plane 41 toward the rear side at a fixed angle (approximately 50 degrees) to form a rectangular shape. The bottom surface 81a is parallel to the plane 41 by bending the short sides of the side surface 71a backward, forming a rectangular shape. The pair of bottom surfaces 81b are formed in a rectangular shape by bending the opposing long sides of the side surface 71b backward to be parallel to the plane 41.

[0036] Here, the bottom surface 81a and the pair of bottom surfaces 81b are on the same plane parallel to the plane 41. The side surfaces 71a and 71b are provided with small holes 31a and 31b that penetrate from the front side to the back side at an angle of 90 degrees. A tip 810a of the bottom surface 81a is located in a direction perpendicular to the side surface 71a from the small hole 31a, and a tip 810b of the bottom surface 81b is located in a direction perpendicular to the side surface 71b from the small hole 31b. The small holes 31a and 31b are holes for inserting headed pins 6 (only a part of the small hole 31b is shown in FIG. 7) for fixing to the non-magnetic wall surface 51. Such a panel P2 can be installed on the curved surface of a cylinder by bending and curving the flat surface 41 and the reinforcing member 21. The side surface 71a and bottom surface 81a of the curved portion have a shape indicated by reference numeral 15 in FIG. 6, for example, according to the curvature of the curve and the thickness of the panel P2.

[0037] The side surface 71a and bottom surface 81a corresponding to the curved portion are bent at the end portions of the flat surface 41. As a result, the end portions of the flat surface 41 cannot be curved along the curved surface of the cylinder, and are inevitably slightly distorted. Therefore, as shown in Figure 6, the curved portion may have only one side surface 71a and one bottom surface 81a, or may not have any. In this figure, an example is shown in which the other sides (opposite sides) of the plane 41 are omitted.

[0038] The load on panel P2 can be fully supported by pins 6 pushed in through small holes 31 in side surface 71. As shown in Figure 7, flat surface 41 is curved along the side surface of the cylinder, and reinforcing material 21 is attached between cylindrical wall surface 51 and flat surface 41, which increases the mechanical strength.

[0039] Third Embodiment The panel of the present invention can use not only a soft magnetic plate made of metal but also a soft magnetic sheet as the magnetic surface. Figure 8 is a perspective view of a panel P3 of the third embodiment, where (a) shows the external view and (b) shows an exploded view. The panel P3 of the third embodiment differs from the panel P1 of the first embodiment in the following respects: the panel P3 has a main body 111 instead of the main body 1 of the panel P1, and also has a soft magnetic sheet .

[0040] The main body 111 has an opening 16 penetrating from the front to the back of the flat surface 4 of the main body 1, but the other components, such as the side surface 7, bottom surface 8, and small holes 3, are the same as those of the panel P1. The same is true for the reinforcing material 2. The soft magnetic sheet 40 is fixed to the non-opening portion (the edge portion around the opening 16) 17 on the plane 4 so as to cover the opening 16. For example, an adhesive is used for the fixing. The soft magnetic sheet 40 does not itself have the properties of a permanent magnet, but is a flexible sheet to which a magnet can be attracted. It is made by forming a mixture of fine powder of soft magnetic material and a small amount of organic polymer elastomer, which acts as a binder, into a sheet having a thickness of 0.5 to 2 mm using a forming method such as rolling or extrusion.

[0041] As the soft magnetic material powder, a ferromagnetic material with low coercivity and high magnetic permeability (hereinafter referred to as "ferromagnetic powder"), a ferromagnetic material with low coercivity and high magnetic permeability (hereinafter referred to as "ferrimagnetic powder"), or a mixture of ferromagnetic and ferrimagnetic powders can be used. As the ferromagnetic powder, iron powder, magnetic stainless steel powder, sendust powder, etc. can be used. As the ferrimagnetic powder, soft ferrites such as manganese zinc ferrite powder, nickel zinc ferrite powder, and magnetite powder (iron oxide powder) can be used.

[0042] Examples of the small amount of organic polymer elastomer that can be used as a binder include chlorinated polyethylene, chlorosulfonated polyethylene, ethylene-vinyl acetate copolymer, ethylene-propylene rubber, nitrile rubber, acrylic rubber, and chloroprene rubber. For example, Iron Sheet (registered trademark) manufactured by the applicant company can be used as this soft magnetic sheet 21. Instead of the soft magnetic sheet 21, a magnetic sheet can be used, which is a sheet made by molding a mixture of fine powder of a hard magnetic material and an organic polymer elastomer that serves as a binder, and magnetizing at least one surface of the sheet. In other words, any ferromagnetic sheet will do.

[0043] In the panel P3 of the third embodiment, the soft magnetic sheet 40 performs the magnetic attraction function of the flat surface 4 in the panel P1 of the first embodiment. That is, the surface 42 of the soft magnetic sheet 40 becomes the magnet attraction surface. The soft magnetic sheet 40 has a smaller specific gravity than a metal plate and can provide a relatively strong magnetic force even with the same thickness, thereby enabling the panel to be made lighter.

[0044] Furthermore, when using this configuration, a power transmission coil carrying a high-frequency current is placed on the back surface of the soft magnetic sheet 40, and a light-emitting item equipped with a power receiving coil and a magnet piece is magnetically attached to the front surface of the soft magnetic sheet 40. This allows for an illumination system in which the light-emitting item can be magnetically attached to any position on the magnetically attached surface and illuminated via wireless power supply. In this case, the soft magnetic sheet 40, and in turn, the ferromagnetic sheet, are advantageous for the following reasons: When applying wireless power supply, placing a power transmission coil on the back surface of a metal plate reduces power supply efficiency and generates heat. While a thin metal plate with a thickness of approximately 0.1 mm can be powered, it lacks sufficient mechanical strength. Therefore, we used a main body 111 with an opening 16 on the flat surface 4, and covered this opening 16 with a non-metallic ferromagnetic sheet 40 instead of the flat surface of the metal plate to create a magnetically attracted surface.

[0045] Here, if the area of ​​opening 16 is large, the rigidity of main body 111 decreases, reducing mechanical strength, so the area of ​​opening 16 is preferably 80 percent or less of the area of ​​plane 4. Furthermore, to supplement the strength of the main body, reinforcing bars 18, 19 may be provided to connect opposing non-opening portions 17 in a manner that bridges opening 16, as shown in Figure 9. Note that it is also an option to not provide reinforcing bars 18, 19, leaving the rigidity low and making it easier to attach to curved surfaces. The method for installing the panel P3 on the non-magnetic wall surface 5 is the same as that for the panel P1, and therefore will not be described here.

[0046] As described above, the panels P1, P2, and P3 of the present invention can be easily attached (set up) to a wall by applying protective tape, and are also easy to remove and change the layout, allowing for a truly DIY-like experience. Furthermore, if the base is plasterboard, the pins attaching the panel can be pulled out with bare hands (fingers), and the holes left after removal are small and barely noticeable.

[0047] The panel of the present invention can be used to create any wall display depending on the combination with the item L. For example, it can be used as a simple decoration in a store, a display for small items, or even to display videos by attaching a flat-screen television.

[0048] Furthermore, the panel of the present invention can aim for non-combustible certification. The metal soft magnetic plate or thin soft magnetic sheet itself is non-combustible, and if the surface material, paint, and reinforcing material are changed to non-combustible materials, the combination of these will likely result in the panel being certified as non-combustible.

[0049] In addition, in order to reduce the effort required to pull out the pins 6 one by one, it is possible to use a removal aid X as shown in FIG. The removal aid X is made of a metal wire such as stainless steel with a thickness of 0.2 mm to 0.8 mm. This metal wire passes through the small holes 3a, 3b that are closest to each other at the four corners of the small holes 3a, 3b in the two adjacent side surfaces 7a, 7b, and has its open ends connected to each other to form a ring shape. When the panel is not being removed, as shown in Figure (a), the pulling portion X1 of the metal wire is placed on the back side of the corner so that it is not noticeable, and when removing it, as shown in Figure (b), a fingernail or a pointed tool is used to expose the pulling portion X1 on the front side, and by pulling it toward you in the normal direction of the non-magnetic wall surface 5, it is possible to remove multiple pins 6 all at once. Such removal aids X may be provided at all four corners of the panel, or only at some of them. [Example]

[0050] A white-painted rolled steel plate (0.35 mm thick) manufactured by Nippon Steel Corporation was cut into a rectangular shape with notches in the four corners and folded to produce a panel P1 having a square flat surface 4 with a side length of 30 cm. The angle formed between the side surface 7 and the flat surface 4 is 45 degrees, and the side surface 7 is further folded to form the bottom surface 8. At this time, the bottom surface 8 is formed by folding in a width of 10 mm. The side surface 7 has a width of approximately 14.2 mm, and a small hole 3 with a diameter of 1 mm is drilled in the center thereof. The tip of the bottom surface 8 is positioned perpendicular to the side surface 7 from the small hole 3. A total of three small holes 3 were made in the center of the side surface corresponding to the length of one side (30 cm) of the flat surface 4, and also at positions 5 mm from both ends of the 30 cm side toward the center.

[0051] The reinforcing material 2 was made by cutting out a 30 cm square piece of expanded PS (polystyrene; expansion ratio: 50) with a thickness of 1 cm, and attaching it to the back of the flat surface 4 with double-sided adhesive tape. At this time, the panel weight was approximately 320g.

[0052] Next, the panel P1 was attached to the plasterboard wall surface in the following manner. Specifically, I inserted a commercially available FANYBRAND flat head 2.2 (0.9mm diameter, 22mm length, unichrome plated) pin into the small hole on the side and found the tip of the bottom. The pin was roughly perpendicular to the side. Next, I placed a 10 yen coin on the head of the pin and pushed it in with my thumb. Three pins were used on the upper side of the panel, and two pins each on the lower side and on both sides.

[0053] The panel attached to the plasterboard was gently pushed parallel to the wall, but it did not budge. In this example, a commercially available magnet was used to attach a piece of memo paper to the panel's surface. A magnetic hook was attached and a 6 kg load was applied to the hook, but the hook remained attached to the panel and did not come off, and no abnormalities were found in the panel. [Industrial Applicability]

[0054] The panel of the present invention can be used to transform a non-magnetic wall surface, such as a plasterboard wall or a wooden wall, into a wall surface to which magnets are attracted. This panel is also convenient for use at home to post memos and contact lists, and in companies, schools, and government offices. Furthermore, this panel is easy to install. [Explanation of symbols]

[0055] 1 Main body 2 Reinforcement 3 small holes 4 planes 5 Non-magnetic wall 6-pin 7 Side 8 Bottom 9. Adjacent folded parts 10 Bent part 11 Main body 12 Where the edges of soft magnetic plates or sheets are adjacent 14 Cylindrical wall 15 Side and bottom surfaces for curved sections 21 Reinforcement 31 Small hole 40 Soft magnetic sheet 41 plane 51 Non-magnetic wall 71 Side 81 bottom 111 Main body P1 Panel P2 Panel P3 Panel

Claims

1. A panel comprising a thin soft magnetic plate made of a soft magnetic material, the panel having a triangular or polygonal plane, with at least two sides of the plane each having a side bent at an angle of 20 degrees to 60 degrees from the plane, the soft magnetic plate forming the side being further bent so as to be parallel to the plane to form a bottom surface, a small hole being formed in the side surface that penetrates the side surface from the front surface to the back surface, and the tip of the bottom surface being located in a direction perpendicular to the side surface from the position of the small hole.

2. A panel having a soft magnetic plane as described in claim 1, characterized in that the panel is made by processing a soft magnetic plate that assumes its unfolded diagram using a punching method or other process and then bending it.

3. A panel having a soft magnetic plane as described in claim 1, characterized in that a reinforcing material such as plastic, its foam, or wood is attached to the back side of the plane.

4. A panel having a soft magnetic plane as described in claim 1, characterized in that the surface of the soft magnetic plate is coated or painted.

5. A panel comprising a thin soft magnetic plate made of a soft magnetic material, having a triangular or polygonal plane, with at least two sides of the plane each having a side bent at an angle of 20 degrees to 60 degrees from the plane, the soft magnetic plate forming the side being further bent so as to be parallel to the plane to form a bottom surface, an opening being provided in part of the plane of the soft magnetic plate, and a ferromagnetic sheet being fixed to a non-opening part of the plane so as to cover this opening, characterized in that the panel has a soft magnetic plane.

6. A method for installing the panel described in claim 1 on a non-magnetic wall surface, characterized in that the tip of a pin or nail passed through a small hole opened in the side surface is used to locate the tip of the bottom surface, and the pin or nail is then pushed into the non-magnetic wall surface.

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