Interior building materials

Patent metadata

Field	Value
Publication number	US-12392133-B2
Application number	US-202318459980-A
Country	US
Kind code	B2
Filing date	Sep 1, 2023
Priority date	Mar 16, 2017
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

The present invention intends to provide a technique by which, in an interior building material which is represented by a gypsum board and to which a magnet does not attach, the surface of such an interior building material can be modified so that a magnet can attach to the surface by simple means that can be put into practical use, a wall face and the like for which a stopper with a magnet, which is a substitute for a thumbtack, and a magnet sheet are usable can thereby be formed, and an interior building material which has realized favorable construction efficiency such that the interior building material can be easily cut with a cutter knife or the like can be made, and this object is realized by providing an interior building material having a plurality of sheet-like magnetic materials fixed to at least a portion of a surface or back surface of a plate-like base material to which a magnet does not attach, wherein adjacent magnetic materials are disposed in such a way as to have a portion where the adjacent magnetic materials are in contact with each other, or adjacent magnetic materials are disposed through a gap having a narrow portion.

First claim

The invention claimed is:

1. A method for forming an interior wall with an interior building material, the method comprising:
bending the interior building material convexly so as to open a space capable for a blade of a cutter knife to be inserted, between a first magnetic material and a second magnetic material of a plurality of magnetic materials in the interior building material at a portion where the first magnetic material and the second magnetic material are adjacent to each other and abut each other on a base material of the interior building material;
inserting the blade of the cutter knife into the space between the first magnetic material and the second magnetic material so as to cut the interior building material between the first magnetic material and the second magnetic material of the plurality of magnetic materials in the interior building material, along a circumference of the first magnetic material and a circumference of the second magnetic material, without cutting any of the plurality of the magnetic materials,
wherein the cut defines a first side of a portion and a second side of the portion of the interior building material between the first magnetic material and the second magnetic material, the first side of the portion of the interior building material having the first magnetic material and the second side of the portion of the interior building material having the second magnetic material; and
forming the interior wall, with at least one piece selected from the group consisting of a piece comprising the first magnetic material at the first side and a piece comprising the second magnetic material at the second side,
wherein the interior building material comprises a base material and the plurality of magnetic materials in a sheet shape,
the base material is in a plate shape, the base material comprises a front surface and a back surface, and a magnet is not attracted to the base material,
among the plurality of the magnetic materials, the first magnetic material and the second magnetic material are disposed on the front surface of the base material or on the back surface thereof and are adjacent to each other so as to abut each other, and
the base material is a gypsum board.

2. The method for forming an interior wall with an interior building material according to claim 1 ,
wherein the plurality of the magnetic materials in the sheet shape has a same shape among the plurality of the magnetic materials, and
the same shape is at least one shape selected from the group consisting of a square, a rectangle, a trapezoid, a triangle, a circle, and an ellipse.

3. The method for forming an interior wall with an interior building material according to claim 2 ,
wherein a length of four sides of the square if selected, two sides of the rectangle if selected, at least one side of the trapezoid if selected, at least one side of the triangle if selected, a diameter of the circle if selected, and at least one axis of the ellipse selected from the group consisting of a major axis and a minor axis if the ellipse is selected, is in a range from 10 cm to 35 cm.

4. The method for forming an interior wall with an interior building material according to claim 2 ,
wherein each of the plurality of the magnetic materials has a same size.

5. The method for forming an interior wall with an interior building material according to claim 1 , wherein at least one of the plurality of the magnetic materials has a through hole.

6. The method for forming an interior wall with an interior building material according to claim 1 ,
wherein the interior building material holds while standing vertically, one sheet of A4 plain paper placed between one magnetic material among the plurality of the magnetic materials and one magnet placed over the A4 plain paper and the one magnetic material, wherein the one magnet is in a disk shape, has a diameter of a magnet portion of 17 mm, and has a force of attraction of 3.5 N to an iron sheet having a thickness of 1 mm.

7. The method for forming an interior wall with an interior building material according to claim 1 , wherein in the interior building material, a paper sheet is pasted on the plurality of the magnetic materials.

8. The method for forming an interior wall with an interior building material according to claim 1 , wherein the plurality of the magnetic materials has a thickness in a range from 0.1 to 1.0 mm.

9. The method for forming an interior wall with an interior building material according to claim 1 , wherein the plurality of the magnetic materials has a thickness in a range from 0.2 to 0.8 mm.

10. The method for forming an interior wall with an interior building material according to claim 1 ,
wherein at least one of the plurality of the magnetic materials is an iron sheet or a steel sheet, and at least one surface selected from the group consisting of a front surface of the magnetic materials and a back surface thereof is rust-proof.

11. The method for forming an interior wall with an interior building material according to claim 1 , wherein the interior building material has a thickness in a range from 9.5 to 10.0 mm.

12. The method for forming an interior wall with an interior building material according to claim 1 , wherein the interior building material has a thickness in a range from 12.5 to 13.0 mm.

13. The method for forming an interior wall with an interior building material according to claim 1 ,
wherein among the plurality of the magnetic materials, the first magnetic material and the second magnetic material that are adjacent to each other and abut each other have a same shape and are a set of a plurality of sets, and the plurality of the sets is distributed to be aligned to be in a same pattern in at least one direction over the front surface or the back surface of the base material, entirely or partially, on which the plurality of the sets is disposed.

14. The method for forming an interior wall with an interior building material according to claim 1 ,
wherein adjacent magnetic materials of the plurality of magnetic materials are aligned in at least one direction.

15. The method for forming an interior wall with an interior building material according to claim 1 ,
wherein the plurality of the magnetic materials are disposed onto at least 90% of the front surface of the base material, or at least 90% of the back surface thereof.

Assignees

• Yoshino Gypsum Co

Inventors

• Yokoyama Itaru
• Watanabe Ken

Classifications

• E04B2/723

  constituted of gypsum elements · CPC title

• E04B2002/7468

  using magnets · CPC title

• E04C2/46

  specially adapted for making walls (E04C2/52, E04C2/54 take precedence; structure of slab-shaped elements E04B1/02; walls of elements of relatively thin form E04B2/72) · CPC title

• E04B2/74 Primary

  Removable non-load-bearing partitions; Partitions with a free upper edge (framed panels E04C2/38) · CPC title

• E04C2/043 Primary

  of plaster (E04C2/049 takes precedence) · CPC title