JP2017155583A - Interior building material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an interior building material for realizing excellent workability, capable of forming a wall surface capable of using a fastener with a magnet and a magnet sheet for substituting for a drawing-pin, and also easily cuttable by a cutter knife, by modifying so that a magnet is attracted to a surface of such an interior building material, by practicable simple means, in the interior building material of not attaching the magnet representative of a gypsum board.SOLUTION: In an interior building material, a plurality of plate-like magnetic materials are arranged and fixed in at least a part of a surface or a reverse surface of a base material of not attaching a magnet so that mutual adjacent magnetic materials have a mutually abutted part, or the mutual adjacent magnetic materials are arranged and fixed via a clearance having a narrow part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an improvement of interior building materials that are made of a base material that is not originally attached with a magnet such as gypsum board. Specifically, the functionality of attaching a magnet (magnet), which is a magnetic material, to the surface is provided. The present invention relates to an interior building material for forming an interior wall or the like that realizes good workability that can be easily cut with a cutter knife or the like.

  Gypsum board (also called plasterboard) is a building material made of plaster as a main component and wrapped in special paperboard. It is very durable, has excellent fire resistance, and has high heat insulation and sound insulation. Widely used as an interior building material when building walls and ceilings. Gypsum board is widely used as a building material for interiors, in addition to the above-mentioned excellent functionality, it is a building material made of inorganic material, but it has excellent workability that can be easily cut with a cutter knife. It depends on some things.

  However, when trying to decorate, for example, a picture or a photograph on a wall made of gypsum board, it is necessary to use a special anchor developed for gypsum board. Also, if you remove normal screws, nails, pushpins, or special anchors on plasterboard that are no longer necessary, the holes will remain on the wall. There's a problem. The problem of holes remaining in the walls after pulling out screws, nails, and thumbtacks is not limited to plasterboard, but is the same for other interior building materials.

  On the other hand, a stopper with a magnet for a thumbtack, which does not require a hole in the wall, has been developed and widely used for a wall made of steel or the like. Also known are magnetic sheets with images and letters on the surface that can be easily attached to walls made of steel, etc., and magnetic sheets that can be used as whiteboards, etc. It is widely used because there is no trace left on the wall.

  However, the products attached to the wall with these magnets (magnets) are limited in the material of the wall, and cannot be used on, for example, a wall surface made of gypsum board that is widely used. In order to use it, it is necessary to install a dedicated sheet for attaching the magnet sheet on the wall surface, which is troublesome and causes another problem that the design of the wall surface is impaired.

  In response to the above problems, there is a proposal for a wall member in which a magnetic thin plate such as a steel thin plate is stuck on the surface of a support member such as a plaster board and wallpaper is superimposed on the surface of the magnetic thin plate (Patent Document 1). reference). Also, in recent years, building materials that have been developed to prevent malfunctions of electronic equipment, such as gypsum board and metal plates, are known, and in some cases, magnets are attached to the surface. There is a possibility (see Patent Document 2).

JP 2014-152596 A JP 2008-87404 A

  However, according to the study by the present inventors, the wall member described in Patent Document 1 is like a steel sheet over almost the entire surface of a supporting member such as a plaster board or over a large area even if it is a part. Since the magnetic thin plate is stuck, the workability of the support member is remarkably inferior. In addition, the specific wall member described in Patent Document 1 has a magnetic thin plate such as a steel thin plate attached to a surface of a commercially available gypsum board covered with paper on both sides with a double-sided tape or an adhesive. It is intended to form a portion where a wall is attached to the wall surface by construction, with a construction in which wallpaper is superimposed thereon, and construction is extremely complicated and cannot be used for general purposes.

  In addition, since the building materials developed for the purpose of preventing malfunction of electronic devices described above are for the purpose of imparting electromagnetic wave shielding properties, most of the metal plates that can be used are magnets. It is the kind that doesn't stick. Furthermore, the structure of the building material is not configured such that a large number of materials are laminated on the metal plate, and the magnet is attached to the surface of the building material.

  On the other hand, a paint containing a magnetic material such as iron powder has been commercialized, and a magnet can be attached by providing a coating film on the surface of an interior building material such as gypsum board. However, in this case, it is difficult to apply evenly because it is thickly applied on-site, requiring various skills, making the site dirty, and making it impossible to ensure high incombustibility of gypsum board. As with the technique described in Patent Document 1, it cannot withstand general use.

  On the other hand, it is also conceivable to form a coating layer containing a magnetic substance by applying a paint containing a magnetic substance in advance to an interior building material such as gypsum board. There is a practical problem that it requires equipment and technology for uniformly applying the paint on the surface of the material, and equipment and technology for drying.

  Therefore, an object of the present invention is to provide a magnet (magnet) to the surface of the interior building material with a simple means that can be put into practical use in an interior building material that does not have a magnet such as a gypsum board. It can be modified to form wall surfaces that can be used as a thumbtack-equipped magnet stopper and magnet sheet, and it can be easily cut with a cutter knife, etc. To provide building materials.

  The above object is achieved by the present invention described below. That is, according to the present invention, a plurality of plate-like magnetic materials are arranged on at least a part of the front surface or back surface of a base material to which no magnet is attached so that adjacent magnetic materials have portions in contact with each other. An interior building material is provided in which adjacent magnetic materials are arranged and fixed via a gap having a narrow portion.

  The following are mentioned as a preferable form of the building material for interiors of this invention. The adjacent magnetic materials are arranged in contact with each other, and the plurality of plate-like magnetic materials are fixed in a state of being arranged without gaps; the narrow portion of the gap is 0.05 to 5.0 mm The narrow portion of the gap is in the range of 0.10 to 1.0 mm; the plurality of plate-like magnetic materials have the same shape, and the shape is A shape selected from the group consisting of a square, a rectangle, a trapezoid, a triangle, a circle and an ellipse; four sides of the square, two sides of a rectangle, at least one side of a trapezoid or a triangle, or a diameter of a circle Alternatively, at least one of the major axis and the minor axis of the ellipse is 10 cm to 35 cm; the gap includes only the narrow part, and the narrow part is linear; the plurality of plates Small amount of magnetic material At least one sheet is a plate-shaped magnetic material having a through-hole; at least one of the plurality of sheet-shaped magnetic materials has a chamfered portion on the outer periphery thereof; A disk-shaped magnet in which the magnetic material is placed so that the interior building material is vertical, the diameter of the magnet part is 17 mmφ, and the attractive force to the 1 mm iron plate is 3.5 N A single sheet of A4 plain paper is held in a portion where the plate-like magnetic material is disposed, and the base material has an adsorption force that does not drop; It is a plaster plate-like member, and has a structure in which a plurality of plate-like magnetic materials are arranged and a sheet of paper is further pasted; the thickness of the plate-like magnetic material is 0.1 to 1.0 mm; thickness of the plate-like magnetic material Is any one of the plurality of plate-like magnetic materials is either an iron plate or a steel plate on which both surfaces or one surface is subjected to rust prevention processing; The thickness is 9.5 to 10.0 mm; the thickness is 12.5 to 13.0 mm.

  According to the present invention, an interior building material that does not have a magnet on the surface typified by a gypsum board has a simple structure, and a magnet (magnet) is attached to the surface by simple means that can be put to practical use. A highly convenient interior building material that has been modified into According to the present invention, because of the above-described configuration, plain paper or the like is used on the interior building material surface by a stopper with a magnet for a thumbtack or a magnet sheet that is used in a wide variety of forms in a wide range of fields. A highly convenient interior building material that exhibits sufficient magnet attracting force to be held when it is held, and a highly convenient wall surface using the same. Further, according to the present invention, the greatest advantage of the present invention is that it is possible to easily insert a cutter knife between adjacent plate-like magnetic materials while being the above-described highly convenient interior building material. An object of the present invention is to provide an interior building material that can be easily cut into an appropriate size and realizes good workability.

It is a schematic diagram which shows the building material for interiors of Example 2 of this invention. It is a schematic diagram which shows the interior building material of Example 1 of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is a schematic diagram which shows another example of the building material for interiors of this invention. It is the schematic diagram explaining the method to measure the attraction | suction force to the 1 mm iron plate of the magnet used when evaluating the attraction | suction force with respect to the magnet of the interior building material of this invention.

  Hereinafter, the present invention will be described in detail with reference to preferred embodiments. The present invention is not limited to the following embodiments, and various modifications and substitutions of the following embodiments can be made without departing from the scope of the present invention.

  As a result of diligent research to solve the above-described problems of the prior art, the present inventors have modified a base material that is not attached with a magnet such as gypsum board, and the conventional method for attaching the magnet to the surface thereof. All have deteriorated the workability and designability of the base material and lacked industrial applicability, and this was recognized as the biggest technical problem in the prior art. As a result of studying under such recognition, as a result of arranging and fixing a plurality of plate-like magnetic materials on at least a part of the front surface or the back surface of the base material so as to improve the surface so that a magnet is attached. Next, the adjacent magnetic materials are brought into contact with each other and fixed in a state where a plurality of plate-like magnetic materials are arranged without gaps, or the plurality of adjacent plate-like magnetic materials have at least a narrow portion. By arranging and fixing through a gap, the present inventors have found that it is possible to achieve a highly convenient and excellent workability that solves the problems of the prior art.

  That is, the interior building material of the present invention is a case where a plurality of plate-shaped magnetic materials are fixed in a state where they are arranged without gaps, or are arranged and fixed through gaps having narrow portions, thereby providing gaps. Of course, even if the plate-like magnetic materials are arranged without gaps, the adjacent plate-like magnetic materials are separated from each other, so a cutter knife is provided between the plate-like magnetic materials. It has been found that it is easy to insert the blade of this, and this makes it possible to ensure the same workability as before the modification.

  According to the study by the present inventors, for example, even when a plurality of galvanized steel plates are fixed in a state of being arranged without gaps on a gypsum board (see FIG. 1), they were surprised. If the above-mentioned interior building materials are bent slightly so that the side on which the plurality of galvanized steel plates are fixed is convex, the blade of the cutter knife can be easily inserted between adjacent magnetic materials. As a result, it was found that the interior building material having the above-described configuration can be easily cut with a cutter knife. Further, when the building material for interior is configured such that adjacent plate-like magnetic materials are arranged and fixed through a gap having a narrow portion (see FIG. 2 etc.), the blade of the cutter knife or the Even a blade with a thicker thickness than the blade of a cutter knife can be easily inserted, and the substrate can be easily cut with this blade. In this embodiment, it is recognized that the gap having a narrow portion formed by arranging a plurality of plate-like magnetic materials is a portion that can be freely cut in the interior building material of the present invention. It is preferable to design the shape and arrangement of a plurality of plate-like magnetic materials. If it does in this way, it will become possible to provide the interior building material excellent in workability.

  The gap having a narrow portion in the interior building material of the present invention may be appropriately designed as necessary in consideration of the workability of the interior building material described above. That is, the size of the gap may be such that, for example, in a narrow portion thereof, the width of the cutter blade or the like can be easily inserted without bending the interior building material as described above. As a specific size of the narrow portion in the case where the gap is provided, the shortest distance between adjacent magnetic materials may be within a range of 0.05 to 5.0 mm. It may be narrower, such as in the range of 10 to 1.0 mm. In addition, the position where the gap is provided may be arbitrarily determined in consideration of the convenience when the interior building material is cut and used.

  Here, usually, the building material for interior is often a 3 × 6 scale which is a fixed size of the panel plywood. For this reason, in the present invention, when a plurality of plate-like magnetic materials are arranged in any of the configurations as described above, the magnetic materials are easy to construct and can be cut at a desired predetermined interval. It is preferable to adopt a configuration arranged in the above. When cut at a contact portion between adjacent magnetic materials or at a gap formed by adjacent magnetic materials, the width is, for example, in the range of 10 cm to 35 cm, more specifically, 10 cm, or , 15 cm, or 30 cm, the gaps are preferably arranged at predetermined intervals.

  The interior building materials using conventional metal plates all use large-area metal plates, which has been a cause of poor workability. On the other hand, in the present invention, for example, as shown in FIG. 1 or FIG. Are made into a building material for interiors in a form in which they are fixed and arranged in order through a narrow gap. By comprising in this way, it will be solved that the workability which arises by using the above-mentioned large-area metal plate will worsen, and the remarkable effect of this invention will be acquired. 1 and FIG. 2 are schematic diagrams, and the contact portion and the gap are emphasized. The same applies to the other figures.

  By constructing as described above, the interior building material of the present invention shown in FIG. 1 or 2 can easily insert the blade of a cutter knife between adjacent plate-like magnetic materials. It becomes the thing of the structure divided | segmented every about 30 cm which can be cut | disconnected by etc. As a result, the interior building material of the present invention can be inserted magnetically without using a safety ruler or the like by using a partition (contact portion or gap) that can be easily inserted and cut. The material serves as a guide, and the gypsum board as a base material can be easily cut into a width (length) of, for example, 30 cm, 60 cm, and 90 cm with a general-purpose cutter knife or the like. Thus, since the interior building material product of the present invention can be used without waste, it is excellent in effective utilization of resources and excellent in economic efficiency. Without being limited to the above, for example, if a plate-like magnetic material of approximately 10 cm square or approximately 15 cm square is used, the interior building material of the present invention is 10 cm, 15 cm, 20 cm, 40 cm, 45 cm, 50 cm, It becomes a useful product that can be easily cut into widths (lengths) such as 60 cm, 70 cm, 75 cm, and 80 cm.

  The shape of the plurality of plate-like magnetic materials constituting the interior building material of the present invention is not limited to the square shown in FIGS. 1 and 2, for example, a rectangle (see FIGS. 3 and 4), a trapezoid (not shown), a circle (See FIG. 5), an ellipse (not shown), a triangle (see FIGS. 6 and 7), etc. In the illustrated example, the plurality of plate-like magnetic materials have the same shape, but the present invention is not limited to this and may be a combination of the above-described figures. For example, in interior work, considering that it may be necessary to provide a through hole in the interior building material, the base material is greatly exposed in an area surrounded by a plurality of adjacent plate-like magnetic materials. It is preferable to select and use the shape and arrangement of the magnetic material as appropriate so that there is a portion.

  In the interior building material of the present invention, in the example shown in FIGS. 1 to 10, a plurality of plate-like magnetic materials are arranged over the entire surface of the base material. It is preferable that the magnetic material is disposed on 90% or more, more preferably 95% of the area of the front surface or the back surface of the substrate. However, this arrangement is not necessarily required. For example, as shown in FIGS. 11 and 12, it is sufficient to arrange the magnets on the surface of the interior building material so that the convenience is improved. Furthermore, in consideration of its workability, as shown in FIGS. 8 to 10, as shown in FIGS. 8 to 10, only a portion that is highly likely to be used by cutting the building material is configured with a plurality of plate-like magnetic materials, It is also a preferred form of the present invention to dispose a large-area plate-like magnetic material in a portion that is not likely to be cut and used.

  What is important in the present invention is that a plurality of plate-like magnetic materials are arranged in a state in which the plurality of plate-like magnetic materials are arranged, and if necessary, the adjacent magnetic materials are arranged between each other. A blade such as a cutter knife can be easily inserted between them, and the substrate can be cut along the outer edge of the plate-like magnetic material (that is, the plate-like magnetic material is not cut). That is, as a result of such a configuration, the interior building material of a size as required can be easily and without waste, so when the interior wall is formed, a magnet is attached to the surface of the formed wall. It is feasible to provide a product with excellent convenience, workability, and economic efficiency that can reduce the amount of scrap material generated while maintaining the workability at the same time. Become.

  As a more preferable form of an interior building material having a configuration in which a blade such as a cutter knife can be easily inserted between adjacent magnetic materials, which is an object of the present invention, at least one of a plurality of plate-like magnetic materials is used. , And using a chamfered portion provided on the outer edge (outer periphery). In this configuration, particularly, as shown in FIG. 1, adjacent magnetic materials are arranged in contact with each other, and a plurality of plate-like magnetic materials are fixed in a state of being arranged without gaps. Even in the interior building material having the configuration, a blade such as a cutter knife can be more easily inserted between adjacent plate-like magnetic materials. Moreover, when the chamfered part is provided in the outer edge (outer periphery) of a magnetic material, even if it is in the state by which sheet-like materials, such as wallpaper, were stuck on the surface of the interior building material of this invention, it adjoins. A blade such as a cutter knife can be easily inserted between the plate-like magnetic materials, and it becomes easy to cut.

  The method for fixing the plurality of plate-like magnetic materials constituting the interior building material of the present invention on the base material may be any conventionally known method. For example, the magnetic material may be attached to the base material with an adhesive, or fastened to the base material with a double-sided tape. The adhesive is not particularly limited, and for example, an organic adhesive such as a vinyl acetate adhesive or an epoxy adhesive, or an inorganic adhesive such as an alkali metal silicate may be used.

  Examples of the plate-like magnetic material constituting the interior building material of the present invention include an iron plate or a steel plate. The steel sheet may be a surface-treated steel sheet that has been surface-treated. The surface treatment in the surface-treated steel sheet may be any as long as the interior building material of the present invention is configured so that a magnet is attached to the surface of the interior building material. For example, a steel plate (single metal plated steel plate) plated with a single metal such as a galvanized steel plate (zinc steel plate) or an alloy such as a molten 55% aluminum-zinc alloy plated steel plate (Galvalium steel plate (registered trademark)) Examples thereof include a plated steel plate (alloy plated steel plate). In the examples to be described later, a case where a galvanized steel plate is arranged as a representative example thereof is shown, but the present invention is not limited to this.

  The plate-like magnetic material used in the present invention may have one or a plurality of through holes. If constituted in this way, when constructing the interior building material of the present invention or after construction, nails and screws can be driven into this through hole, so that the construction property and convenience of the interior building material of the present invention can be improved. Design property can be improved more. More specifically, for example, in the case where the interior building material of the present invention in which the plate-like magnetic material is fixedly provided on the substrate surface is fastened, a through-hole is provided in the plate-like magnetic material. If this is the case, by using this through-hole, it can be easily fastened with screws using a general-purpose electric tool, and the surface condition after fastening with screws etc. is also flat and good. become. On the other hand, if the plate-like magnetic material is not provided with a through hole, depending on the thickness of the magnetic material, use a general-purpose electric tool to fasten the interior building material of the present invention with a screw or the like. In this case, the surface of the magnetic material swells not a little (protrusively protrudes on the surface side), and when the surface is finished with wallpaper or the like, there is a problem in appearance and the design may be impaired. From these points, the plate-like magnetic material used in the present invention is preferably provided with one or a plurality of through holes in advance.

  Therefore, it is preferable that the size of the through hole is such that the screw head and the nail head can be accommodated, for example, about 10 to 20 mmφ. The position and the number of through holes to be provided are not particularly limited, and it is possible to improve the workability, convenience and design of the interior building material of the present invention by providing the through holes. What is necessary is just to determine suitably in consideration. In addition, by processing the through-hole portion using a putty material including a magnetic material and resin, the through-hole in which the screw head or the nail head is accommodated can be processed smoothly.

  Moreover, as a preferable form of the interior building material of the present invention, a structure in which a sheet of paper or the like is further pasted on the surface side of a plurality of plate-like magnetic materials such as iron plates arranged on one surface of the base material Is mentioned. If constituted in this way, it can paint without carrying out primer processing, and can also paste wallpaper with the usual paste for wallpaper. The material of the sheet used above is not limited to paper, and may be any material. As a suitable thing, the thing of the material which is easy to attach the glue for wallpaper, or the thing from which the surface characteristic which can apply a coating material directly is obtained is mentioned, for example.

  The thickness of the plate-like magnetic material such as an iron plate is, for example, one commercially available thumbtack with a magnet (so-called magnet), and if an attractive force capable of holding one or more A4 printing sheets is obtained. Well, not particularly limited. According to the study by the present inventors, specifically, the thickness is preferably 0.1 mm or more, more preferably 0.2 mm or more. Further, the thickness of the plate-like magnetic material such as an iron plate constituting the interior building material of the present invention may be thick, but even if the thickness exceeds 1 mm, the obtained attractive force is not so large and thick magnetic If the material is used, depending on the range in which the plate-like magnetic material is disposed, the interior building material becomes heavy, and there is a concern that the workability and workability may be deteriorated. Further, if it is too thick, material costs are unnecessarily increased and it is uneconomical. If the desired attractive force is such that A4 paper is fixed with a single magnet, it is sufficient to use a plate-like magnetic material having a thickness of about 0.5 mm. According to the study of the present inventors, using a commercially available stopper with a magnet that realizes a strong attractive force, when considering installing a heavy shelf, etc., about 0.8 mm It is preferable to have a thickness.

  As described above, the interior building material of the present invention can exhibit at least an attractive force capable of fixing A4 paper with one magnet, in consideration of various situations when the inner wall surface is formed. Is preferred. Specifically, the portion where the plate-like magnetic material constituting the interior building material of the present invention is disposed is such that the interior building material is vertical, the magnet portion has a diameter of 17 mmφ, and When a single A4 plain paper is held on the part where the plate-like magnetic material is arranged with one disk-shaped magnet having an attractive force to a 1 mm iron plate of 3.5 N, the normal What is necessary is just to have the adsorption | suction power which paper does not fall. The disc-shaped magnet having a diameter of 17 mmφ used above has an adsorption force of 3.5 N against a 1 mm iron plate, as shown in FIG. That is, this is a value obtained by using an autograph and pulling up a magnet with a hook having a diameter of 17 mmφ under a test speed of 3 mm / sec and reading the maximum strength.

  Here, the most common interior wall material is a gypsum board. Among them, the most frequently used wall material for interior is a gypsum board having a thickness of 9.5 to 10.0 mm or 12.5 to 13.0 mm. Therefore, the thickness of the interior building material of the present invention in which a plurality of plate-like magnetic materials such as iron plates are fixed side by side through a specific gap is 9.5 to 10.0 mm or 12.5 to 13 0.0 mm is preferable because it can be finished without being uneven with the surrounding walls.

  Therefore, it is preferable to use a gypsum board as the base material constituting the interior building material of the present invention. The gypsum board is not limited to a general-purpose board, and includes a waterproof board with improved waterproofness and a reinforced gypsum board with enhanced fire resistance. In addition, examples of the base material constituting the interior building material include a rock wool board and a board made of glass fiber. According to the study by the present inventors, a plurality of plate-like magnetic materials are disposed on one side of a gypsum board in a state where adjacent magnetic materials are in contact with each other without a gap, or adjacent to each other. Even if it is the building material for interiors of the present invention in any form in which the matching magnetic materials are arranged through a gap, a blade such as a cutter knife can be easily inserted between adjacent plate-like magnetic materials, By cutting the base paper on the surface of the gypsum board under the magnetic material, the gypsum board as the base material can be easily cut. Therefore, by using an existing gypsum board as a base material, it is possible to realize a product with a highly enhanced convenience without impairing the high workability of the gypsum board.

  Next, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to these examples.

[Example 1]
In the interior building material of this example, a plaster plate-like member having a thickness of 12.5 mm, a length of 1820 mm, and a width of 901 mm was used as the base material. In addition, as a plate-like magnetic material, 18 30 mm square galvanized steel sheets having a thickness of 0.5 mm were prepared. Then, as shown in FIG. 2, the 18 galvanized steel plates were arranged so that adjacent galvanized steel plates were arranged in an orderly manner with 3 horizontal plates × 6 vertical plates through a predetermined gap. Specifically, the three horizontal sheets are arranged via a gap composed of straight narrow portions each having a width of 0.5 mm, and the six sheets in the vertical direction are each composed of a gap consisting of linear narrow portions having a width of 0.4 mm. The galvanized steel sheet was arranged over the entire surface of the base material to obtain the interior building material of this example. As a means for fixing the galvanized steel plate, a vinyl acetate adhesive was used. In FIG. 2, the gap is exaggerated from the actual size for the sake of clarity.

  About the obtained plate-like interior building material, when observed visually and tactilely, the surface on the side where the galvanized steel plates are arranged side by side is very narrow, so the gap between adjacent galvanized steel plates is extremely narrow, so that it is the same as conventional gypsum board In addition, the touch feeling with the hand was flat, including the surface on the side where the galvanized steel plate was placed, as in the conventional case.

Moreover, the attraction | suction force with a magnet of the surface by which the zinc steel plate was arrange | positioned side by side was confirmed with the following method. In other words, the interior building material is erected so that the magnet part has a diameter of 17 mmφ and a magnet with an attractive force of 3.5 N to the 1 mm iron plate. A4 paper having a thickness of 0.09 mm and a mass of 64 g / m ² was held. As a result, 5 sheets could be held without dropping.

  Easily put the blade of the cutter knife into the gap formed by the adjacent narrow galvanized steel sheets of the interior building material obtained above, consisting of a narrow portion with a width of 0.5 mm or 0.4 mm. As a result, it was confirmed that the interior building materials can be easily cut. As a result, the cut piece could be easily cut into a member having a width of 30 cm (length) or a width of 60 cm (length) without using a measure.

[Example 2]
In the interior building material of the present example, a plaster member made of gypsum having a thickness of 12.5 mm and a length of 1800 mm and a width of 900 mm was used as a base material. Then, 18 galvanized steel plates having the same 30 cm square as used in Example 1 were used, and the adjacent galvanized steel plates were arranged in contact with each other, as shown in FIG. A plate-shaped interior building material of this example was obtained in the same manner as in Example 1 except that the material was fixed in a state of 3 horizontal x 6 vertical and arranged without gaps. As a result, like Example 1, it is the external appearance which gives the impression similar to the conventional gypsum board, and the feeling touched by the hand is the same as that of the conventional one including the surface on the side where the zinc iron plate is arranged. A flat building material was obtained. Further, as in the case of Example 1, the attractive force of the magnet on the surface on which the zinc iron plates are arranged side by side was able to hold five A4 sheets with the magnet.

  The interior building material obtained above can be easily inserted into the blade where the adjacent galvanized steel plate and the galvanized steel plate are in contact with each other by bending the galvanized steel plate into the convex side. As a result, it was possible to easily cut the plaster plate member as the base material. Moreover, what was cut | disconnected easily was made into members, such as 30 cm width (length) or 60 cm width (length), without using a measure.

[Example 3]
In the interior building material of this example, a plaster member made of gypsum having a thickness of 12.5 mm, a length of 1820 mm, and a width of 910 mm and satisfying the size of the gypsum board defined by JIS standards was used as a base material. In addition, as a plate-like magnetic material, 18 30.3 cm square galvanized steel sheets having a thickness of 0.5 mm were prepared. Then, as shown in FIG. 2, 18 galvanized steel plates were arranged so that adjacent galvanized steel plates were arranged in an orderly manner with 3 horizontal plates × 6 vertical plates through a predetermined gap. Specifically, the three horizontal sheets are arranged via a gap composed of straight narrow portions each having a width of 0.5 mm, and the six sheets in the vertical direction are each composed of a gap consisting of linear narrow portions having a width of 0.4 mm. The galvanized steel sheet was arranged over the entire surface of the base material to obtain the interior building material of this example.

  About the plate-shaped interior building material obtained above, when observed by visual and tactile sense, the surface on the side where the galvanized steel plates are arranged side by side has a gap between adjacent galvanized steel plates as in the building material of Example 1. Since it is extremely narrow, it has an appearance that gives an impression similar to that of a conventional gypsum board, and the touch feeling with the hand is also flat, including the surface on the side where the galvanized steel plate is disposed, as in the conventional case. Further, as in the case of Example 1, the attractive force of the magnet on the surface on which the zinc iron plates are arranged side by side was able to hold five A4 sheets with the magnet.

  Easily put the blade of the cutter knife into the gap formed by the adjacent narrow galvanized steel sheets of the interior building material obtained above, consisting of a narrow portion with a width of 0.5 mm or 0.4 mm. As a result, it was confirmed that the interior building materials can be easily cut. As a result, the cut piece could be easily cut into a member having a width (length) of about 30 cm or a width (length) of about 60 cm without using a measure.

Claims (16)

  A plurality of plate-like magnetic materials are arranged and fixed so that adjacent magnetic materials have portions in contact with each other on at least a part of the front surface or back surface of the base material to which no magnet is attached, Or the adjacent magnetic material is arrange | positioned and fixed through the clearance gap which has a narrow part, The interior building material characterized by the above-mentioned.   The interior building material according to claim 1, wherein the adjacent magnetic materials are arranged in contact with each other, and the plurality of plate-like magnetic materials are fixed in a state of being arranged without gaps.   The interior building material according to claim 1, wherein a narrow portion of the gap is in a range of 0.05 to 5.0 mm.   The interior building material according to claim 1, wherein a narrow portion of the gap is within a range of 0.10 to 1.0 mm.   2. The plurality of plate-like magnetic materials have the same shape, and the shape is any one selected from the group consisting of a square, a rectangle, a trapezoid, a triangle, a circle, and an ellipse. The interior building material according to any one of -4.   The interior according to claim 5, wherein at least one of the four sides of the square, the two sides of the rectangle, the trapezoid or the triangle, the diameter of the circle, or the major axis or minor axis of the ellipse is 10 cm to 35 cm. Building materials.   The interior building material according to any one of claims 1, 3, and 4, wherein the gap includes only the narrow portion, and the narrow portion is linear.   The interior building material according to any one of claims 1 to 7, wherein at least one of the plurality of plate-like magnetic materials is a plate-like magnetic material having a through hole.   The interior building material according to any one of claims 1 to 8, wherein at least one of the plurality of plate-like magnetic materials has a chamfered portion on an outer periphery thereof.   The portion where the plate-like magnetic material is arranged stands so that the interior building material is vertical, the diameter of the magnet portion is 17 mmφ, and the attractive force to the 1 mm iron plate is 3.5 N 5. A single disk-shaped magnet having an attractive force that prevents the plain paper from dropping when a single A4 plain paper is held in a portion where the plate-like magnetic material is disposed. The interior building material according to any one of 1 to 9.   11. The structure according to claim 1, wherein the base material is a plaster plate-like member, and a sheet of paper is further pasted on the plurality of plate-like magnetic materials. The interior building material according to claim 1.   The interior building material according to any one of claims 1 to 11, wherein the plate-like magnetic material has a thickness of 0.1 to 1.0 mm.   The interior building material according to any one of claims 1 to 11, wherein a thickness of the plate-like magnetic material is 0.2 to 0.8 mm.   The interior material according to any one of claims 1 to 13, wherein any one of the plurality of plate-like magnetic materials is an iron plate or a steel plate on which both surfaces or one surface is rust-proofed. Building materials.   The interior building material according to any one of claims 1 to 14, wherein the thickness is 9.5 to 10.0 mm.   The interior building material according to any one of claims 1 to 14, wherein the thickness is 12.5 to 13.0 mm.

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