JP4317468B2 - Metal panel - Google Patents

Description

  The present invention relates to a metal panel that is used as an interior building material such as a partition panel or a wall decorative panel, and is composed of a thin metal plate such as a steel plate or an aluminum alloy plate.

  As shown in, for example, Japanese Patent No. 3426186, a conventional typical partition panel is provided with a backing material made of gypsum board inside each surface plate made of steel plates facing each other at intervals. It is the structure which filled the filler by glass wool in the space between materials.

  However, the conventional partition panel has a problem in terms of environmental protection because the gypsum board backed by the steel face plate cannot be reused at the time of disposal, and the disposal of the gypsum board also has a specific problem. The disposal cost was high because it was designated as a disposal site. For this reason, the partition panel also needs to have recyclability.

In order to realize a panel having excellent recyclability, it is conceivable that the backing plate (lining material) constituting the panel is made of metal without using a gypsum board. In this case, the conditions required for the backing plate are to satisfy the dent resistance and the surface impact sound characteristics in addition to the rigidity required for the panel by reinforcing the surface plate from the back side. The dent resistance is that it is difficult to form a small dent such as “Ecbo” even if an object hits a metal surface plate such as a steel surface plate. The metal sound peculiar to the metal plate can be kept small when hit.
Japanese Patent No. 3426186 (paragraphs 0002 and 0018, FIGS. 1 and 3)

  Accordingly, an object of the present invention is to provide a metal panel that has recyclability and can satisfy dent resistance and surface impact sound characteristics as an interior building material.

  In order to solve the above problems, the present invention takes the following technical means.

The invention of claim 1 comprises a thin metal flat surface plate and a thin metal backing plate having a dimple group in which dimples recessed toward the back surface of the surface plate are arranged, and the backing plate comprises: The dimple pitch has a dense part and a sparse part, and the thickness of the dimple pitch is thicker than the thickness of the dimple pitch sparse part. A metal panel, wherein a plate is joined to the top of each dimple of the backing plate.

  According to a second aspect of the present invention, in the metal panel according to the first aspect, the surface plate and the backing plate are made of steel, and the thickness of the surface plate is 0.3 to 1.8 mm. The pitch is 100 mm or less.

According to a third aspect of the present invention, in the metal panel according to the first or second aspect , in the backing plate, the dimple depth in the portion where the dimple pitch is dense is shallower than the dimple depth in the portion where the dimple pitch is sparse. It is characterized by that.

According to a fourth aspect of the present invention, there is provided a thin metal reinforcing plate having a flat surface plate made of thin metal, a dimple group in which dimples recessed toward the back surface of the surface plate are arranged, and facing the back surface of the surface plate. A thin metal backing plate having a dimple group in which dimples that are recessed are arranged at a dimple pitch larger than the reinforcing plate, and the surface plate and the reinforcing plate are joined at the top of each dimple of the reinforcing plate In addition, the reinforcing plate and the backing plate are joined at the top of each of the dimples of the backing plate.

A metal panel according to the invention of claim 1 is formed by joining a thin metal plate such as a flat steel plate and a thin metal backing plate such as a steel plate having a dimple group at the top of each dimple of the backing plate. Has been. Therefore, since the surface plate is supported by the backing plate by the tops of a large number of dimples, it can be provided with dent resistance necessary as an interior building material, and the impact sound generated by the surface plate can be provided by the backing plate. Therefore, it is possible to provide a surface impact sound characteristic necessary as an interior building material. Furthermore, since metal plates that can be used as raw materials are joined, recycling is easy. Therefore, according to the invention of claim 1, it is possible to provide a metal panel that has recyclability and can satisfy both dent resistance and surface impact sound characteristics as an interior building material. Further, the metal panel according to the invention of claim 1 is configured such that the backing plate has a portion where the dimple pitch is partly dense, so that the height of the metal panel is approximately higher than the floor surface where a leg such as a desk or chair can easily hit. A portion up to about 30 cm, a portion about 100 cm in height from the floor surface on which the corner of the desk can easily hit, and the like can be made a strengthened region that is particularly excellent in dent resistance and surface impact sound characteristics. In this case, the portion of the backing plate other than the reinforced region, for example, a portion having a height of about 100 cm or more from the floor surface can be set with a rough dimple pitch, so that the cost of the entire metal panel can be reduced. is there. Also, because the backing plate is made thicker than the thickness of the portion where the dimple pitch is denser than the portion where the dimple pitch is sparse, it prevents the plate from breaking at the portion where the dimple pitch is dense can do.

  According to the invention of claim 2, in the steel panel in which the steel surface plate and the steel backing plate are joined at the top of each dimple of the backing plate, the thickness of the surface plate is 0.3-1. While satisfying the range of 8 mm and the dimple pitch of the backing plate being 100 mm or less, it has recyclability and can satisfy both dent resistance and surface impact sound characteristics as an interior building material. Steel panels can be provided.

According to the invention of claim 3 , since the backing plate is configured so that the dimple depth in the portion where the dimple pitch is dense is shallower than the dimple depth in the portion where the dimple is sparse, the dimple pitch is dense during the dimple forming process. The metal panel which can prevent the board fracture | rupture in a part can be provided.

According to the invention of claim 4 , since the reinforcing plate is provided, the surface plate can be supported more firmly than the one constituted by the surface plate and the backing plate, so that it has a greater dent resistance as an interior building material. It is possible to provide a metal panel that is excellent in dent resistance and has high dent resistance and surface impact sound characteristics as an interior building material.

Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view showing a metal panel for reference , and FIG. 2 is a cross-sectional view taken along the line AA of FIG.

As shown in FIGS. 1 and 2, this reference metal panel 10 has a flat surface plate 11 made of a thin metal plate (for example, a mild steel plate: SPCC) and a back surface of the surface plate 11. And a single backing plate 12 made of a thin metal plate (for example, a processing steel plate: SPCE) having a dimple group in which a large number of dimples 13 that are recessed are arranged, and the surface plate 11 and the backing plate 12 are the backing plate 12. The top of each dimple 13 is joined with an adhesive B.

The shape of the dimple 13 is a hemispherical shape in this example , but it may be a shape that does not have a sharp top for joining with the surface plate 11, and may be a truncated cone shape (conical shape), for example. The dimples 13 have a regular arrangement, and in this example , are provided at the vertices of an equilateral triangle. The adhesive B that joins the surface plate 11 and the backing plate 12 is a high vibration damping adhesive having a stiffness G of 1 to 10 MPa and a loss factor tan δ of 0.1 to 1.0 in the range of polymers. For example, a one-component polyurethane adhesive was used. In addition, although a surface impact sound can be reduced, so that a loss coefficient is large, since adhesive strength will fall, so that a loss coefficient is enlarged, this range is suitable.

As described above, the metal panel 10 is formed by joining the flat surface plate 11 made of thin metal and the backing plate 12 made of thin metal with the adhesive B at the top of each dimple 13 of the backing plate 12. It is configured. Therefore, since the surface plate 11 is supported by the backing plate 12 at a short interval (pitch) by the tops of a large number of dimples 13, it is difficult to dent even if an object hits the surface plate 11, and is necessary as an interior building material. It is possible to provide high dent resistance, and the impact sound generated on the surface plate 11 can be absorbed and suppressed by the highly vibration-damping adhesive B and the backing plate 12, so that the surface required as an interior building material It can have impact sound characteristics. Furthermore, since it joins metal plates (11, 12), such as a steel plate, it is easy to recycle as a raw material.

  Incidentally, there is a steel ball drop test (JIS A 6512) as a test method for evaluating the dent resistance of the partition panel of the movable partition wall. As shown in FIG. 3, this test method is a test in which a steel ball having a mass of 1000 g and a diameter of about 63.5 mm is hung with a rope, dropped freely from a position of 30 cm in height, and collided with the surface plate of the partition panel. . The surface plate is checked for abnormalities after collision with the steel ball. From the viewpoint of the dent resistance of the partition panel, the dent amount of the surface plate is preferably 2 mm or less.

  1 and 2, the thickness of the surface plate made of mild steel plate (SPCC) and the dimple pitch of the backing plate made of steel plate for processing (SPCE) We made various prototypes with various changes in (provided at the apex) and conducted a steel ball drop test. The overall dimensions of the prototyped metal panel are: length: 1000 mm, width: 1000 mm, thickness height: about 10 mm. The thickness of the backing plate is 0.6 mm, the dimple diameter is 25 mm, and the dimple depth is 10 mm.

  Table 1 and FIG. 4 show the measurement results of the dent amount δ by the steel ball drop test when the dimple pitch p is 50 mm and the thickness (plate thickness) t of the surface plate is changed. As shown in FIG. 4, the dent amount δ increases as the thickness t of the surface plate decreases, but the dent amount can be reduced to 2 mm or less by increasing the thickness of the surface plate to 0.3 mm or more. On the other hand, the backing plate has a thickness in the range of about 0.4 to 0.8 mm from the viewpoint of workability. For this reason, in order to obtain lightness equivalent to or higher than that of the above-described conventional partition panel having a structure in which a steel plate is lined with a gypsum board, the thickness of the surface plate needs to be 1.8 mm or less. In addition, the conventional partition panel backed with a 12.5 mm thick gypsum board on a 0.6 mm thick surface plate has a dent amount of 0.55 mm by a steel ball drop test, and its weight is about 15 to 20 kg. It is.

  Table 2 and FIG. 5 show the measurement results of the dent amount δ by the steel ball drop test when the thickness t of the surface plate is 1 mm and the dimple pitch p is changed. As shown in FIG. 5, the dent amount δ increases as the dimple pitch p increases, but the degree of change is more gradual than when the thickness of the surface plate is changed, and the dent amount is even when the dimple pitch p is 150 mm. It is less than 1 mm.

  On the other hand, surface impact sound characteristics are also required for the partition panel. From the result of the surface impact sound measurement test when the dimple pitch is changed (FIG. 6), even if the same adhesive having a high effect of reducing the surface impact sound is used, the dimple pitch is reduced to 100 mm or less. It was confirmed that the surface impact sound characteristics almost equivalent to those of the panel using the board backing material (Comparative Example 2 in FIG. 6) were obtained. FIG. 6 is a graph showing the results of the surface impact sound measurement test. In FIG. 6, the panel of the invention example has a surface plate (SPCC): thickness 1.0 mm, backing plate (SPCE): thickness 0.6 mm, dimple diameter 25 mm, dimple depth 10 mm, dimple pitch 50 mm (dimples are staggered) Arrangement). The panel of Comparative Example 1 has a dimple pitch of 140 mm (dimples are arranged in front). Further, the panel of Comparative Example 2 is formed by backing a gypsum board having a thickness of 12.5 mm on a surface plate (SPCC) having a thickness of 0.6 mm.

  From the above, in the steel panel according to the present invention, it is necessary that the thickness of the surface plate satisfies the range of 0.3 to 1.8 mm, and the dimple pitch of the backing plate is 100 mm or less. is there.

FIG. 7 is a cross-sectional view schematically showing a metal panel according to an embodiment of the present invention.

  As shown in FIG. 7, the metal panel 20 of this embodiment includes a single flat metal surface plate 21 and a backing plate 22, and the backing plate 22 is thin-walled in this embodiment. It consists of three metal backing plates 22a-22c. And the upper part of the surface board 21 and the backing board 22a which has the dimple group which arranged many dimples 23a are joined with the adhesive agent B at the top part of each dimple 23a.

Further, the middle portion of the surface plate 21 and a large number of dimples 23b are arranged at a dimple pitch denser than the upper backing plate 22a, and the backing plate 22b has a thickness t2 larger than the thickness t1 of the upper backing plate 22a. Are joined with an adhesive B at the top of each dimple 23b. Further, the lower portion of the surface plate 21 and a large number of dimples 23c are arranged at a dimple pitch denser than that of the middle backing plate 22b, and the backing plate 22c has a thickness t3 larger than the thickness t2 of the middle backing plate 22b. Are joined by an adhesive B at the top of each dimple 23c. In this case, the dimple depth of each of the dimples 23a to 23c is the same dimension (h2). Further, the three backing plates 22a to 22c are joined together by an adhesive or welding .

  As described above, according to the metal panel 20 of this embodiment, since the backing plate 22c having the dimples 23c provided densely is positioned at the lower portion of the entire backing plate, the floor such as a desk or a chair is easily hit by the floor. A portion up to about 30 cm in height can be a strengthened region that is particularly excellent in dent resistance and surface impact sound characteristics, and quality can be improved. Further, since the backing plate 22c is thicker than the others, even if the pitch of the dimples 23c is dense, plate breakage does not occur during the dimple forming process. Note that the backing plate 22a provided with the dimples 23a sparser than the backing plate 22c can be dimple-molded without breaking the plate even if the thickness thereof is thinner than the backing plate 22c.

FIG. 8 is a cross-sectional view schematically showing a metal panel for reference .

As shown in FIG. 8, the reference metal panel 30 includes a flat surface plate 31 made of thin metal and a backing plate 32. In this example , the backing plate 32 is a thin metal plate. It consists of three manufactured backing plates 32a to 32c. And the upper part of the surface board 31 and the backing board 32a which has the dimple group which arranged many dimples 33a are joined by the adhesive agent B at the top part of each dimple 33a.

  Further, a middle portion of the front plate 31 and a backing plate 32b having a dimple group in which a large number of dimples 33b having a dimple depth h2 shallower than the upper dimple 33a (dimple depth: h1) are arranged. The top of the dimple 33b is joined with the adhesive B. Further, a lower portion of the surface plate 31 and a backing plate 32c having a dimple group in which a large number of dimples 33c having a dimple depth h3 shallower than the middle dimple 33b are bonded to each other at the top of each dimple 33c. Bonded with agent B. In this case, the thickness of each backing plate 32a-32c is made into the same dimension (t1). Further, the backing plates 32a to 32c are joined together by an adhesive or welding.

As described above, according to the reference metal panel 30, the backing plate 32c having the dimples 33c densely provided at the lower portion of the entire backing plate is positioned. A portion up to about 30 cm in height can be a strengthened region that is particularly excellent in dent resistance and surface impact sound characteristics, and quality can be improved. Further, since the backing plate 32c has the depth of the dimple 33c shallower than that of the others, even if the pitch of the dimple 33c is dense, the plate breakage does not occur during the dimple forming process. Note that the backing plate 32a provided with the dimples 33a sparser than the backing plate 32c can be dimple-molded without breaking even if the dimple depth is deeper than that of the backing plate 32c.

  FIG. 9 is a cross-sectional view schematically illustrating a metal panel according to another embodiment of the present invention.

  As shown in FIG. 9, the metal panel 40 of this embodiment includes a single flat metal surface plate 41 and a backing plate 42, and the backing plate 42 is thin-walled in this embodiment. It is composed of three metal backing plates 42a to 42c. And the upper part of the surface board 41 and the backing plate 42a which has the dimple group which arranged many dimples 43a are joined by the adhesive agent B at the top part of each dimple 43a.

  Further, a dimple group consisting of a middle step portion of the surface plate 41 and a large number of dimples 43b arranged at a dimple depth h2 shallower than the upper dimple 43a (dimple depth: h1) and at a dense dimple pitch. And a backing plate 42b having a thickness t2 thicker than the upper backing plate 42a (thickness: t1) is bonded to the top of each dimple 43b with an adhesive B. In addition, the front plate 41 has a dimple group including a plurality of dimples 43c arranged at a dimple depth h3 shallower than the dimple 43b of the middle step portion and a dense dimple pitch. A backing plate 42c having a thickness t3 thicker than the backing plate 42b is joined by an adhesive B at the top of each dimple 43c.

  As described above, according to the metal panel 40 of this embodiment, the backing plate 42c having the dimples 43c densely provided at the lower portion of the entire backing plate is positioned. A portion up to about 30 cm in height can be a strengthened region that is particularly excellent in dent resistance and surface impact sound characteristics, and quality can be improved. Further, since the backing plate 42c is thicker than the other backing plates and the depth of the dimples 43c is shallow, even when the pitch of the dimples 43c is dense, during the dimple molding process Can be reliably prevented.

10A and 10B are views showing a metal panel for reference, in which FIG. 10A is a front view of a main part, and FIG. 10B is a cross-sectional view taken along line AA of FIG.

As shown in FIG. 10, this reference metal panel 50 includes a flat surface plate 51 made of thin metal and a thin metal backing plate 52 having a dimple group. . The backing plate 52 has a dimple group in which a large number of dimples 53a are arranged, and a plurality of dimples 53b arranged in the reinforcing region 54 at a dimple depth shallower than the dimple 53a and at a dense dimple pitch. The backing plate 52 and the surface plate 51 are joined by the adhesive B at the tops of the dimples 53a and 53b. By forming such dimples 53a and 53b by two-stage molding, it is possible to prevent plate breakage during the dimple molding of the reinforcing region.

  FIG. 11 is a cross-sectional view schematically showing a main part of a metal panel according to another embodiment of the present invention.

  As shown in FIG. 11, the metal panel 60 of this embodiment includes a thin metal plate having a flat surface plate 61 made of thin metal and a dimple group in which dimples 65 recessed toward the back surface of the surface plate 61 are arranged. And a thin metal backing plate 62 having a dimple group in which dimples 63 recessed toward the back surface of the front plate 61 are arranged at a dimple pitch larger than the reinforcement plate 64. Then, the surface plate 61 and the reinforcing plate 64 are joined by the adhesive B at the top of each dimple 65 of the reinforcing plate 64, and the reinforcing plate 64 and the backing plate 62 are joined at the top of each dimple 63 of the backing plate 62. It is joined.

  Thus, since the metal panel 60 of this embodiment is provided with the reinforcing plate 64, it can support the surface plate 61 more firmly than what is comprised from a surface plate and a backing plate. Greater dent resistance can be provided as an interior building material, it has recyclability, and the interior building material satisfies dent resistance and surface impact sound characteristics, and is particularly excellent in dent resistance.

It is a front view which shows the metal panel for reference . It is AA sectional drawing of FIG. It is a figure for demonstrating a steel ball drop test. It is a figure which shows the relationship between the thickness of the surface board in the steel panel of the structure shown in FIG. 1, FIG. 2, and the amount of dents by a drop test. It is a figure which shows the relationship between the dimple pitch of the backing plate in the steel panel of the structure shown in FIG. 1, FIG. 2, and the amount of dents by a drop test. It is a graph which shows the result of the surface impact sound measurement test in the steel panel of the structure shown in FIG. It is sectional drawing which shows schematically the metal panel by one Embodiment of this invention. It is sectional drawing which shows the metal panel for a reference roughly. It is sectional drawing which shows schematically the metal panel by another embodiment of this invention. It is a figure which shows the metal panel for reference, Comprising: The (a) is a principal part front view, The (b) is AA sectional drawing of (a). It is sectional drawing which shows roughly the principal part of the metal panel by another embodiment of this invention.

DESCRIPTION OF SYMBOLS 10 ... Metal panel 11 ... Surface plate 12 ... Backing plate 13 ... Dimple 20 ... Metal panel 21 ... Surface plate 22, 22a-22c ... Backing plate 23a-23c ... Dimple 30 ... Metal panel 31 ... Surface plate 32, 32a 32c ... backing plate 33a-33c ... dimple 40 ... metal panel 41 ... surface plate 42, 42a-42c ... backing plate 43a-43c ... dimple 50 ... metal panel 51 ... surface plate 52 ... backing plate 53a, 53b ... dimple 54 ... Reinforcement region 60 ... Metal panel 61 ... Surface plate 62 ... Backing plate 63,65 ... Dimple 64 ... Reinforcement plate B ... Adhesive

Claims (4)

A flat surface plate made of thin metal and a thin metal backing plate having a dimple group in which dimples recessed toward the back surface of the surface plate are arranged, and the backing plate is a portion where the pitch of the dimples is dense And the thickness of the portion where the dimple pitch is dense is thicker than the thickness of the portion where the dimple pitch is sparse, and the surface plate and the backing plate are of the backing plate. A metal panel, which is joined at the top of each of the dimples.   The metal according to claim 1, wherein the surface plate and the backing plate are made of steel, the thickness of the surface plate is 0.3 to 1.8 mm, and the dimple pitch of the backing plate is 100 mm or less. Panels. 3. The metal panel according to claim 1, wherein the backing plate has a dimple depth at a portion where the dimple pitch is dense, which is shallower than a dimple depth at a portion where the dimple pitch is sparse . A thin metal flat surface plate, a thin metal reinforcing plate having a dimple group in which dimples recessed toward the back surface of the surface plate are arranged, and the dimples recessed toward the back surface of the surface plate are reinforced A thin metal backing plate having a dimple group arranged at a dimple pitch larger than the plate, and the surface plate and the reinforcing plate are joined at the top of each dimple of the reinforcing plate, and the reinforcing plate And the backing plate are joined at the top of each dimple of the backing plate .

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