Deck material and deck

Abstract

To provide a deck material capable of suppressing a rise in surface temperature and a deck provided with such a deck material.SOLUTION: The deck material includes a surface member 10 that is long in one direction, including a composite plate 11 having a resin layer 11b between a pair of metal plates 11a, 11a and a coating layer 12 that is provided on a first surface 11f of the composite plate 11 and has a lower thermal conductivity than the metal plate 11a. Since the coating layer 12 is provided on the metal plate 11a of the composite plate 11, heat applied to the surface member 10 can be diffused. Therefore, the temperature distribution on the surface of a deck D can be maintained in a nearly uniform state, thereby suppressing a temperature rise on the deck surface. Since the coating layer 12, which has a lower thermal conductivity than the metal plate 11a, is provided on one surface of the composite plate 11, even when heat accumulates in the metal plate 11a of the composite plate 11, the heat can be prevented from being transmitted to people on the deck D.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to decking materials and decks. [Background technology]

[0002] In buildings such as residences, decks are sometimes installed adjacent to the building, extending from the windows, etc. Such decks are sometimes installed at a position where their top surface (deck floor surface) is higher than the ground level of the yard, etc., and are sometimes installed so that people can go directly onto the deck from inside the building.

[0003] As the deck material forming the floor surface of such a deck, there are cases where a layer of resin containing wood powder is used on the surface (for example, see Patent Document 1). When the surface is formed of resin containing wood powder, a suitable wood texture can be imparted to the surface of the deck material. This makes the deck look like it is made of natural wood, improving the appearance of the deck. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-012976 A Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, in the case of decks that are installed so that people can directly exit from inside a building, residents and others may move from inside the building onto the deck barefoot, so it is desirable for the surface (floor) of the deck to be maintained at a temperature that allows people to walk or stop and rest barefoot.

[0006] However, when a deck is exposed to direct sunlight, the surface temperature of the deck material increases in environments with strong sunlight, such as in the summer. In the case where a layer of wood powder-blended resin is provided on the surface of the deck material as described above, the surface of the deck material may become so hot that it is impossible to walk on it barefoot. For this reason, there is a demand for a deck material that can prevent the surface temperature from rising even when the deck is exposed to direct sunlight.

[0007] In view of the above circumstances, an object of the present invention is to provide a deck material capable of suppressing a rise in surface temperature, and a deck including such a deck material. [Means for solving the problem]

[0008] The deck material of the first invention is characterized in that it comprises a surface member having a composite board in which a resin layer is provided between a pair of metal plates, and a coating layer having a lower thermal conductivity than the metal plates and provided on a first surface of the composite board. The deck material of the second invention is the deck material of the first invention, comprising: a surface member; and a supporting structure provided on a second surface of a composite board of the surface member, wherein the surface member has a shape that is long in one direction in a plan view, and the supporting structure has a plurality of vertical members arranged so that an axial direction is parallel to the longitudinal direction of the surface member, the plurality of vertical members are arranged so that there is a space between adjacent vertical members in the short side direction of the surface member, and two of the plurality of vertical members are disposed at each end of the short side direction of the surface member. The deck material of the third invention is characterized in that, in the first or second invention, the two vertical members arranged at both ends of the short side of the surface member have ribs located outside the short side edges of the surface member. The deck material of the fourth invention is characterized in that, in the third invention, the rib provided on the vertical member is arranged so that the length from the second surface of the composite board of the surface member to the tip of the rib is less than or equal to the thickness of the surface member. The deck material of the 5th invention is characterized in that, in any of the 2nd to 4th inventions, it has a plurality of cross members arranged between adjacent vertical members, and among the plurality of cross members, the cross members arranged at both longitudinal ends of the surface member have ribs located outwardly of the longitudinal edges of the surface member. The deck material of the 6th invention is characterized in that, in the 5th invention, the rib provided on the cross member is arranged so that the length from the second surface of the composite board of the surface member to the tip of the rib is less than the thickness of the surface member. The deck material of a seventh invention is characterized in that, in any one of the first to sixth inventions, the covering layer is a layer containing an elastic body. The deck material of an eighth invention is any of the first to seventh inventions, characterized in that the covering layer has a thickness greater than a thickness of the composite board. The deck of the ninth invention is characterized in that the deck material according to any one of the first to eighth inventions is arranged. Effect of the Invention

[0009] According to the first invention, a coating layer with a lower thermal conductivity than the metal is provided on the metal plate of the composite board, so that excessive heat is not transferred to the skin. Also, since the metal plate of the composite board is provided under the coating layer, the heat applied to the surface member can be diffused. Therefore, if the deck material is installed so that the surface of the coating layer of the deck material becomes the surface of the deck, local temperature increases on the deck surface can be suppressed, and the temperature distribution on the deck surface can be made closer to uniform. Also, by using a composite board, the weight of the deck material can be reduced without reducing the strength of the deck material. According to the second aspect of the present invention, the weight of the deck material can be reduced without reducing the strength of the deck material. According to the third aspect of the present invention, the ribs on the vertical members can be used as guides when placing the surface member on the supporting structure, improving the ease of construction of the deck material. Also, the ribs on the vertical members can diffuse and dissipate heat applied to the surface member, suppressing localized temperature increases on the deck surface and making the temperature distribution on the deck surface more uniform. According to the fourth aspect of the present invention, the tips of the ribs do not protrude from the surface of the surface member, so that the safety of the formed deck can be increased. According to the fifth aspect of the present invention, the ribs on the cross members can be used as guides when placing the surface member on the supporting structure, improving the ease of construction of the deck material. Also, the ribs on the cross members can diffuse and dissipate heat applied to the surface member, suppressing localized temperature increases on the deck surface and making the temperature distribution on the deck surface more uniform. According to the sixth aspect of the present invention, the tips of the ribs do not protrude from the surface of the surface member, so that the safety of the formed deck can be increased. According to the seventh and eighth aspects of the invention, cushioning properties can be imparted, and safety can be increased. According to the ninth aspect of the present invention, a coating layer with a lower thermal conductivity than the metal plate of the composite board is provided on the metal plate, so that excessive heat transfer to the skin can be prevented. In addition, since the heat applied to the deck surface can be diffused, the temperature rise of the deck surface can be suppressed. Local temperature rise on the deck surface can be suppressed, and the temperature distribution on the deck surface can be made closer to uniform. In addition, the weight of the deck can be reduced without reducing the strength of the deck. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic explanatory diagram of a deck material 1 of the present embodiment, in which (A) is a schematic perspective view, and (B) is a schematic perspective view of the deck material 1 in an exploded state. [Diagram 2] (A) is a schematic plan view of the deck material 1 of this embodiment, (B) is a schematic side view of the deck material 1 of this embodiment viewed in the short direction, and (C) is a partially enlarged view of the CC line cross section of (A). [Diagram 3] 2(A) is a schematic side view of the deck material 1 of this embodiment as viewed in the longitudinal direction, and FIG. 2(B) is a partially enlarged cross-sectional view taken along line BB in FIG. 2(A). [Figure 4] FIG. 2 is a schematic perspective view of a vertical member 16. [Diagram 5]1A is a schematic perspective view of a cross member 19, and FIG. 1B is a schematic perspective view of FIG. [Figure 6] 2(A) is a partially enlarged cross-sectional view taken along line BB in FIG. 2(A), showing an example in which a through-hole 11h is formed in a composite plate 11. FIG. [Figure 7] FIG. 2 is an explanatory diagram of the construction work of deck D using deck material 1 of this embodiment. [Figure 8] FIG. 2 is an explanatory diagram of the construction work of deck D using deck material 1 of this embodiment. [Figure 9] 1A and 1B are schematic explanatory diagrams of a deck D of this embodiment, in which (A) shows a state in which a cover member C is removed, and (B) shows a state in which the cover member C is attached. [Figure 10] FIG. 2A is a schematic side view of a deck material 1 of another embodiment as viewed in the longitudinal direction, and FIG. 2B is a schematic side view of a deck material 1 of yet another embodiment as viewed in the longitudinal direction. [Figure 11] 13A and 13B are diagrams showing experimental results, in which (A) shows the change over time in the temperature distribution image of the deck material of the comparative example, and (B) shows the change over time in the temperature distribution image of the deck material of the embodiment. [Figure 12] 1 is a graph showing experimental results. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The deck material of this embodiment is a deck material used for decks installed outdoors on buildings, and is characterized by its ability to suppress temperature increases on the deck surface by maintaining the surface temperature at a fairly uniform level even when heated by direct sunlight, etc.

[0012] <Deck D of this embodiment> First, before describing the details of the deck material 1 of this embodiment, a description will be given of the deck D formed using the deck material 1 of this embodiment. The deck D formed using the deck material 1 of this embodiment is the deck D of this embodiment.

[0013] As shown in FIG. 9, the deck D of this embodiment includes a plurality of legs L erected on the ground and a plurality of girders G supported by the plurality of legs L. The plurality of girders G are shaft-shaped members with one side (the surface located on the upper side when installed on the plurality of legs L, hereinafter sometimes referred to as the upper surface of the girders G) formed on a flat surface. The plurality of girders G are installed so that their axial direction is horizontal, and a plurality of deck materials 1 of this embodiment (hereinafter sometimes simply referred to as the deck material 1) (six in FIG. 9) are installed side by side on the upper surface of the plurality of girders G. More specifically, the plurality of deck materials 1 are installed side by side on the upper surface of the plurality of girders G so that their longitudinal directions are parallel to each other. Moreover, the plurality of deck materials 1 are installed side by side on the upper surface of the plurality of girders G so that their upper surfaces (surfaces 1a of the deck material 1) are approximately flush with each other. A cover member C is provided around the multiple deck materials 1 installed on the multiple girders G so as to cover the longitudinal end faces of the multiple deck materials 1 and the transverse end faces of the two deck materials 1 located at the outermost positions among the multiple deck materials 1.

[0014] The deck D of this embodiment having the above-mentioned structure has a surface (floor surface of the deck material D) formed by the surface 1a of the deck material 1 of this embodiment, so that the temperature of the surface can be kept almost uniform and the rise in temperature of the surface can be suppressed. For example, even if direct sunlight is irradiated onto a portion of the surface of the deck D of this embodiment, the heat of the surface can be effectively diffused to the surroundings, so that the portion of the surface of the deck D can be prevented from becoming too hot. Furthermore, even if direct sunlight is irradiated onto the entire surface of the deck D of this embodiment, the heat of the surface can be diffused and dissipated, so that the rise in temperature of the surface of the deck D can be suppressed.

[0015] The upper surfaces of the multiple girders G on which the deck material 1 of this embodiment is installed do not necessarily have to be flat. The multiple girders G only need to have a structure such that when multiple deck materials 1 of this embodiment are installed side by side on their upper surfaces, the surface 1a of the multiple deck materials 1 form a deck D that is substantially flush with one another.

[0016] 9 shows a deck D of this embodiment in which multiple deck materials 1 are arranged side by side only in the short side direction. The deck D of this embodiment may have a structure in which multiple deck materials 1 are arranged side by side not only in the short side direction but also in the long side direction. In this case, the cover member C is arranged so as to cover the exposed ends of the multiple deck materials 1 located at the outermost positions.

[0017] <Deck material 1 of this embodiment> Next, the deck material 1 of the present embodiment will be described. As shown in Fig. 1(A), the deck material 1 of this embodiment is a member that is elongated in one direction and has a generally rectangular shape in a plan view. The deck material 1 of this embodiment has a surface member 10 and a support structure 15 that supports the surface member 10.

[0018] <Surface material 10> As shown in Figures 1(B) and 2(A), the surface member 10 is a plate-like member that is long in one direction, and is a member that forms the surface (floor surface of the deck D) of the deck D. As shown in Figures 2(C) and 3(B), the surface member 10 has a composite plate 11 and a coating layer 12 provided on one surface 11f of the composite plate 11 (the upper surface in Figure 2(C), hereinafter sometimes referred to as the first surface 11f of the composite plate 11).

[0019] The size (length and width) of the surface member 10 is not particularly limited. For example, when the deck material 1 of this embodiment is used for a general deck installed in a residence or the like, the length, i.e., the length L1 (see FIG. 2(A)) in the longitudinal direction (the direction of arrow A in FIG. 1) can be about 500 to 2400 mm, and the width, i.e., the length W1 (see FIG. 2(A)) in the transverse direction (the direction of arrow B in FIG. 1) can be about 100 to 500 mm.

[0020] <Composite board 11> As shown in FIGS. 2(C) and 3(B), the composite plate 11 is a plate-shaped member in which a resin layer 11b is provided between a pair of metal plates 11a, 11a. The pair of metal plates 11a, 11a are plates formed of a metal with high thermal conductivity, for example, an aluminum plate or a steel plate. In addition, the pair of metal plates are preferably made of aluminum in terms of thermal conductivity, strength, weight, weather resistance, and the like. In addition, the pair of metal plates 11a, 11a do not necessarily have to be made of the same metal plate. When plates with different thermal conductivity or strength are used as the pair of metal plates 11a, 11a, it is desirable to use a metal plate with high thermal conductivity for the metal plate 11a forming the first surface 11f of the composite plate 11. The resin layer 11b is a layer formed from a resin such as polypropylene, polyethylene, etc. This resin layer 11b is provided to impart functions to the composite plate 11, such as increasing its rigidity.

[0021] There are no particular limitations on the thickness of the composite plate 11, the metal plate 11a, or the resin layer 11b. For example, when the deck material 1 of the present embodiment is used for a general deck installed in a residence or the like, the thickness of the composite plate 11 can be about 3 to 10 mm, the thickness of the metal plate 11a can be about 0.1 to 1 mm, and the thickness of the resin layer 11b can be about 1 to 9.8 mm.

[0022] <Coating layer 12> The covering layer 12 is a layer formed of a material having a lower thermal conductivity than the metal plate 11a constituting the composite plate 11, and is provided so as to cover the entire first surface 11f of the composite plate 11. The covering layer 12 can be formed, for example, of a hardened coating material containing paint or solids (hard materials such as stone, glass, diatomaceous earth, sand, and wood chips, or elastic materials such as rubber chips), a resin sheet (including a coating material hardened into a sheet), a laminate film, a rubber sheet, a ceramic plate, a stone plate, a wooden plate, an artificial turf, or the like. Specifically, the covering layer 12 can be formed by applying a paint or a coating material to the first surface 11f of the composite plate 11, and drying and hardening it. The covering layer 12 can also be formed by fixing a resin sheet, a laminate film, a rubber sheet, a ceramic plate, a stone plate, a wooden plate, an artificial turf, or the like to the first surface 11f of the composite plate 11 with an adhesive, a double-sided tape, or the like. In addition, when forming the coating layer 12 using a coating material, a resin such as a urethane resin, an epoxy resin, an acrylic resin, or the like can be used as a binder for retaining solids in the coating material or for fixing the coating material to the first surface 11f of the composite board 11. In the following, a case will be described in which the coating layer 12 is formed by curing a coating material containing solids.

[0023] The thickness of the coating layer 12 is not particularly limited. For example, when the deck material 1 of the present embodiment is used for a general deck installed in a residence or the like, the thickness of the coating layer 12 may be about 5 to 30 mm. When the coating layer 12 is formed by a coating material, the thickness of the coating layer 12 may be about 6 to 10 mm.

[0024] <Support structure part 15> The above-mentioned surface member 10 is provided on the upper surface of the support structure 15. In other words, the support structure 15 is provided so that its upper surface contacts the other surface 11s (the lower surface in FIG. 2(C), specifically, the surface of the lower metal plate 11a) of the composite plate 11 of the surface member 10. This support structure 15 has three vertical members 16 and four horizontal members 19. Note that, hereinafter, the other surface 11s of the composite plate 11 may be referred to as the second surface 11s of the composite plate 11.

[0025] <Vertical member 16> As shown in Fig. 1 and Fig. 3, the three vertical members 16 include two end vertical members 17, 17 provided at the ends of the surface member 10 in the short direction, and one intermediate vertical member 18 provided between the two end vertical members 17, 17. The three vertical members 16 are hollow, long shaft-shaped members that are long in the axial direction and formed by a method such as extrusion molding. The three vertical members 16 are provided so that their axial directions are parallel to each other and parallel to the longitudinal direction of the surface member 10. In addition, the length L2 (see Fig. 2(B)) of each of the three vertical members 16 is formed to be approximately the same as the length L1 of the surface member 10. The material of the vertical members 16 is not particularly limited, but is preferably a metal profile, and from the standpoint of thermal conductivity, strength, weather resistance, etc., it is more preferably an aluminum extrusion profile. Furthermore, by using a metal shaped member for the vertical member 16, heat applied to the surface member 10 can be dissipated by moving from the second surface 11s of the composite board 11 to the vertical member 16. In other words, by using a metal shaped member for the vertical member 16, a temperature rise in the surface 1a of the deck material 1 can be suppressed.

[0026] <End vertical member 17> As shown in Figures 3 and 4, the end vertical member 17 has a first side wall 17a and a second side wall 17b that are parallel to each other, and a third side wall 17c and a fourth side wall 17d that are provided between the first side wall 17a and the second side wall 17b.

[0027] As shown in Figures 3 and 4, the first side wall 17a is a wall whose outer surface (the upper surface in Figures 3 and 4) is formed as a flat surface, and the second surface 11s of the composite plate 11 of the surface member 10 is disposed on that outer surface (see Figure 3(B)). The second side wall 17b is a wall whose outer surface (the lower surface in Figs. 3 and 4) is formed into a flat surface, and the outer surface is parallel to the outer surface of the first side wall 17a. The outer surface of the second side wall 17b is the surface that is placed on the upper surface of the girder G when the deck material 1 of this embodiment is installed on the girder G (see Fig. 7). The third side wall 17c is a wall located on the inside in the short-side direction of the surface member 10, and is a wall connecting the first side wall 17a and the second side wall 17b. The third side wall 17c is provided so as to be perpendicular to the first side wall 17a and the second side wall 17b. The third side wall 17c does not necessarily have to be provided so as to be perpendicular to the first side wall 17a and the second side wall 17b, but as long as it is provided so as to be perpendicular to the first side wall 17a and the second side wall 17b, the strength of the surface member 10 against a load applied thereto can be increased. The fourth side wall 17d is a wall located on the outer side in the short-side direction of the surface member 10, and is a wall connecting the first side wall 17a and the second side wall 17b. This fourth side wall 17d is crank-shaped between the first side wall 17a and the second side wall 17b. Specifically, the fourth side wall 17d is crank-shaped and includes a wall X that is a wall perpendicular to the first side wall 17a, a wall Y that is a wall perpendicular to the second side wall 17b and is provided so as to be located closer to the third side wall 17c than the wall X, and a wall Z that connects the wall Y and the wall X and has a portion parallel to the first side wall 17a.

[0028] As shown in Figs. 3 and 4, the second side wall 17b has a portion (protruding wall p and groove forming wall g) that protrudes outward beyond the wall Y of the third side wall 17c and the fourth side wall 17d. The protruding wall p is a portion on which the upper surface of the horizontal member 19 described later is disposed. In other words, the protruding wall p is a portion that holds the horizontal member 19. The groove forming wall g has a tip wall s provided at its tip so as to be perpendicular to the groove forming wall g, and is a portion that forms the groove 17g by the groove forming wall g, the tip wall s, and the wall Y of the fourth side wall 17d. The tip wall s of the groove forming wall g is formed to a size such that an opening communicating with the outside is formed between its tip and the wall Z of the fourth side wall 17d (in other words, between the wall Z).

[0029] In addition, the end vertical member 17 is provided with a rib 17r that is erected on the outer surface of the first side wall 17a and extends along the axial direction of the end vertical member 17, outward from the short-side end edge of the surface member 10. The rib 17r is formed so that its height, that is, the length from the outer surface of the first side wall 17a to the tip of the rib 17r, is equal to or less than the thickness of the composite plate 11. In other words, the tip of the rib 17r is provided so as not to protrude from the first surface 11f of the composite plate 11 when the surface member 10 is placed on the vertical member 16. If the rib 17r is formed to such a height, the tip of the rib 17r will not protrude from the surface 10a of the surface member 10 even when the surface member 10 is placed on the vertical member 16 of the support structure 15. Then, even if the end vertical member 17 is provided with the rib 17r, the safety of the formed deck D can be increased.

[0030] <Intermediate vertical member 18> As shown in Figures 3 and 4, the intermediate vertical member 18 has a first side wall 18a and a second side wall 18b that are parallel to each other, and a pair of third side walls 18c, 18c provided between the first side wall 18a and the second side wall 18b.

[0031] As shown in Figures 3 and 4, the first side wall 18a is a wall whose outer surface (the upper surface in Figures 3 and 4) is formed as a flat surface, and the second surface 11s of the composite plate 11 of the surface member 10 is disposed on that outer surface (see Figure 3(B)). The second side wall 18b has an outer surface (the lower surface in Figs. 3 and 4) that is flat and parallel to the outer surface of the first side wall 18a. The outer surface of the second side wall 18b is the surface that is placed on the upper surface of the girder G when the deck material 1 of this embodiment is installed on the girder G (see Fig. 7). The pair of third side walls 18c, 18c are walls that connect the first side wall 18a and the second side wall 18b. The pair of third side walls 18c, 18c are each provided so as to be perpendicular to the first side wall 18a and the second side wall 18b. The pair of third side walls 18c, 18c do not necessarily have to be provided so as to be perpendicular to the first side wall 18a and the second side wall 18b, but as long as they are provided so as to be perpendicular to the first side wall 18a and the second side wall 18b, the strength against the load applied from the surface member 10 can be increased.

[0032] 3 and 4, the second side wall 18b has a portion (protruding wall p) that protrudes outward beyond the pair of third side walls 18c, 18c. The protruding wall p is a portion whose upper surface becomes a surface on which a horizontal member 19, which will be described later, is disposed. In other words, the protruding wall p is a portion that holds the horizontal member 19.

[0033] <Horizontal material 19> As shown in Fig. 2 and Fig. 5, the horizontal member 19 is a hollow shaft-like member formed by a method such as extrusion molding. This horizontal member 19 is disposed between the end vertical members 17 and the intermediate vertical members 18 at both ends in the axial direction of the vertical members 16 (i.e., both ends in the longitudinal direction of the surface member 10) (see Fig. 1(A) and Fig. 3(A)). In other words, the horizontal member 19 is disposed between the end vertical members 17 and the intermediate vertical members 18, and functions as a spacer for keeping the distance between them constant. The horizontal member 19 also has a function for holding the cover member C. This horizontal member 19 has a pair of side walls 19a, 19b facing each other, and a pair of connecting side walls 19c, 19d connecting the pair of side walls 19a, 19b. The horizontal member 19 is formed so that the distance between the outer surfaces of the pair of side walls 19a, 19b (hereinafter sometimes referred to as width W2, see FIG. 5(A)) is approximately the same length as the distance H (see FIG. 3(B)) from the upper surface of the protruding wall p of the end vertical member 17 to the second surface of the composite plate 11 of the surface member 10. In other words, the horizontal member 19 is formed to a size that can close the opening formed between the end of the adjacent end vertical member 17 and the end of the intermediate vertical member 18.

[0034] The cross member 19 also has a rib 19r erected on the outer surface of the side wall 19a (the upper surface of the side wall 19a in Figs. 2 and 5) located on the side of the surface member 10, outward of the longitudinal end edge of the surface member 10. The rib 19r is formed so that its height, that is, the length from the outer surface of the side wall 19a to the tip of the rib 19r, is equal to or less than the thickness of the composite plate 11. In other words, the tip of the rib 19r is provided so as not to protrude from the first surface 11f of the composite plate 11. If the rib 19r is formed to such a height, the tip of the rib 19r will not protrude from the surface 10a of the surface member 10 even when the surface member 10 is placed on the vertical member 16 of the support structure 15. Then, even if the cross member 19 has the rib 19r, the safety of the formed deck D can be increased.

[0035] Since the deck material 1 of this embodiment has the above-mentioned structure, the deck material 1 can make the temperature distribution of its surface 1a closer to uniform, and can suppress the temperature rise of the surface 1a. That is, in the deck material 1 of this embodiment, the covering layer 12 forms the surface 1a, but the covering layer 12 is installed so as to contact the first surface 11f of the composite board 11, that is, the surface of one metal plate 11a. Therefore, when the surface 1a of the deck material 1, that is, the surface of the covering layer 12, is heated by direct sunlight or the like, the heat moves to one metal plate 11a of the composite board 11. This heat can be dissipated by moving from one metal plate 11a to the vertical member 16 of the support structure 15 via the resin layer 11b and the other metal plate 11a. Therefore, it is possible to suppress the temperature of the covering layer 12, that is, the temperature of the surface 1a of the deck material 1 from rising.

[0036] Even if a portion of the surface 1a of the deck material 1 becomes heated, heat moves from the heated portion of the coating layer 12 to the one metal plate 11a, and the heat moves within the one metal plate 11a and is diffused. As a result, compared to when the one metal plate 11a is not present, heat can be moved more quickly from the heated portion of the coating layer 12 to the unheated portion, so that the heat of the heated portion of the coating layer 12 can be diffused quickly not only to that portion but also to the surrounding area. Therefore, the temperature of the coating layer 12, i.e., the temperature distribution of the surface 1a of the deck material 1, can be made closer to uniform.

[0037] Furthermore, when forming the deck material 1, the ribs 17r and 19r are provided on the end vertical members 17 and the horizontal members 19, and the ribs 17r and 19r can be used as guides when placing the surface member 10 on the vertical members 16 of the support structure 15. This makes it easier to position the surface member 10 when connecting the surface member 10 to the support structure 15, improving the workability of the deck material.

[0038] Furthermore, by providing ribs 17r and ribs 19r on the end vertical members 17 and the horizontal members 19, the heat applied to the surface member 10 from the ribs 17r, 19r can be diffused and dissipated, thereby suppressing localized temperature increases on the surface of the deck D and making the temperature distribution on the surface of the deck D more uniform.

[0039] <Method of Assembling Deck Material 1 of the Present Embodiment> The deck material 1 of this embodiment can be assembled as follows.

[0040] First, a surface member 10 is formed having a composite plate 11 and a coating layer 12. Specifically, a coating material containing solids or the like is applied to the first surface 11f of the composite plate 11 so as to cover the entire surface thereof, and then cured, or a resin sheet or the like is arranged and fixed so as to cover the entire surface of the first surface 11f, thereby forming the surface member 10 having the coating layer 12 formed on the first surface 11f of the composite plate 11.

[0041] When applying a coating material containing solids to the first surface 11f of the composite board 11, a frame having an inner diameter approximately the same as that of the surface member 10 is used, the composite board 11 is placed in the frame, the coating material containing solids is applied thereon, and the surface member 10 can be formed by processing with a heated roller or the like. Furthermore, the method for applying the coating material containing solids to the first surface 11f of the composite board 11 is not particularly limited, and any conventional method such as spray application, roller application, trowel application, or brush application can be used.

[0042] The support structure 15 can be formed as follows. First, two end vertical members 17, 17 and one intermediate vertical member 18 are placed on a horizontal floor surface, workbench, or the like. Next, a horizontal member 19 is placed between the adjacent end vertical members 17 and intermediate vertical members 18. More specifically, a horizontal member 19 is placed between the axial end of the end vertical member 17 and the axial end of the intermediate vertical member 18. At this time, both axial end faces of the horizontal member 19 are in contact with the side surfaces of the third side wall 17c of the vertical member 17 and the third side wall 18c of the intermediate vertical member 18, respectively. In this state, the horizontal member 19 is fixed to the end vertical member 17 and the intermediate vertical member 18 with screws or the like to form the support structure 15.

[0043] After the supporting structure 15 and the surface member 10 are formed, the surface member 10 is placed on top of the supporting structure 15. At this time, the surface member 10 is placed so that the short end face of the surface member 10 contacts the rib 19r of the horizontal member 19, and the long end face of the surface member 10 contacts the rib 17r of the end vertical member 17. If the supporting structure 15 and the surface member 10 are fixed in this state, the deck material 1 can be formed.

[0044] The method for fastening the support structure 15 and the surface member 10 is not particularly limited, and any conventional fastening method such as double-sided tape or screws can be used.

[0045] <Construction of Deck D using Deck Material 1 of the Present Embodiment> When constructing the deck D using the deck material 1 of this embodiment, the construction can be carried out in the following manner. For example, (1) a method of constructing deck D using the deck material 1 of this embodiment that has been pre-assembled by the method described above or the like, (2) a method of arranging and fixing pre-formed support structures 15 on top of multiple girders G, and then fixing pre-formed surface members 10 to the support structures 15 to construct deck D, or (3) a method of connecting each member that constitutes the support structures 15 to form the support structures 15 at the construction site where deck D is constructed, and then fixing pre-formed surface members 10 to the support structures 15 to construct deck D, etc. can be adopted.

[0046] For example, when constructing a deck D using the deck material 1 of this embodiment using the above method (1), multiple legs L are erected on the ground and girders G are installed on these multiple legs L. Then, multiple deck materials 1 of this embodiment are lined up and fixed on the multiple girders G, and then multiple cover members C are installed around the multiple deck materials 1, and the deck D can be constructed.

[0047] Furthermore, when constructing a deck D using the deck material 1 of this embodiment using the above method (2), multiple legs L are erected on the ground and girders G are installed on these multiple legs L. Then, multiple support structures 15 are arranged and fixed on the multiple girders G (see Figs. 7(A), (B), and 8(A)). Then, multiple surface members 10 are arranged and fixed on the upper surfaces of the multiple support structures 15 fixed to the girders G (Figs. 7(B), (C), and 8(B)), and multiple cover members C are installed around the multiple deck materials 1, and the deck D can be constructed.

[0048] When constructing the deck D using the deck material 1 of this embodiment by the above method (3), a plurality of legs L are erected on the ground, and a girder G is installed on the plurality of legs L. Then, the girder G is used as a workbench or the like, and a support structure 15 is formed on the girder G by the above-mentioned method for forming the support structure 15. Thereafter, a plurality of surface members 10 are arranged and fixed on the upper surfaces of the plurality of support structures 15 fixed to the girder G, and a plurality of cover members C are installed around the plurality of deck materials 1, so that the deck D can be constructed. In this method, a pre-formed surface member 10 may be used, or a composite plate 11 may be installed on the upper surfaces of the plurality of support structures 15 fixed to the girder G, and then a coating layer 12 may be formed on the first surface 11f of the composite plate 11.

[0049] In this embodiment, the deck materials 1 may be installed so that the short-side edges of adjacent deck materials 1 come into contact with each other, but it is preferable to install the deck materials 1 so that there is a slight gap between the short-side edges of adjacent deck materials 1. In other words, it is preferable to install the deck materials 1 so that there is a slight gap (Dg in FIG. 7(C)) between the walls X of the fourth side walls 17d of the end vertical members 17 of adjacent support structure parts 15. If the deck material 1 is installed so that such a gap Dg is formed, rainwater and the like can be drained through the gap Dg, preventing problems such as water accumulating on the deck D. Furthermore, providing the gap Dg makes it easier to replace the deck material 1, improving maintainability.

[0050] On the other hand, when adjacent deck materials 1 are installed so that there is a small gap between the short-side edges, a gap cover may be provided in the gap. For example, a gap cover may be provided in the gap so that when the gap is viewed from above, the lower part cannot be seen through the gap, but water can flow through the gap cover or between the gap cover and the deck material 1. In this case, the aesthetic appearance of the deck can be improved while maintaining the function of draining rainwater, etc. For example, the above-mentioned effect can be obtained by adopting a gap cover having a through-hole penetrating the gap cover or a gap cover having a notch at the boundary with the deck material 1.

[0051] <Regarding vertical member 16> In the deck material 1 of this embodiment of the above example, the case where the support structure 15 has three vertical members 16 has been described. That is, the case where the support structure 15 has two end vertical members 17, 17 and one intermediate vertical member 18 has been described. In the deck material 1 of this embodiment, the support structure 15 may have only two end vertical members 17, 17 as the vertical members 16 (see FIG. 10(A)), or may have two or more intermediate vertical members 18. The support structure 15 may also be formed of only one vertical member (see FIG. 10(B)). Note that, when the support structure 15 has only two end vertical members 17, 17 as the vertical members 16, it is sufficient to install a cross member 19 between both ends of the two end vertical members 17, 17, and when the support structure 15 has two or more intermediate vertical members 18, it is sufficient to install a cross member 19 between both ends of adjacent intermediate vertical members 18.

[0052] In addition, the cross-sectional shape of the vertical member 16 is not necessarily limited to the above-mentioned cross-sectional shape as long as it is formed in a shape that can be stably installed on the upper surfaces of the multiple girders G and can stably hold the surface member 10. For example, if the upper surfaces of the multiple girders G are flat and horizontal, the vertical member 16 can be shaped to have a pair of parallel planes, and the vertical member 16 can be arranged so that one plane is in surface contact with the upper surfaces of the multiple girders G, so that the other plane of the vertical member 16 becomes a horizontal plane. This makes it easier to make the surface 10a of the surface member 10 installed on the vertical member 16, that is, the surface 1a of the deck material 1 of this embodiment, a horizontal plane.

[0053] In the above example, the end vertical member 17 has the groove 17g, but the groove 17g is not necessarily required. However, by providing the groove 17g, adjacent deck materials 1 can be attached to the girder G with mounting fixtures. This makes it possible to remove the deck material 1 in the necessary places, and the work of replacing the deck material 1 can be easily performed, improving maintainability.

[0054] In the above example, the height of the rib 17r is equal to or less than the thickness of the composite plate 11, but the height of the rib 17r is not limited to the above height. It is sufficient that the tip of the rib 17r is formed to a length that does not protrude from the surface 10a of the surface member 10. Also, the rib 17r of the end vertical member 17 is not necessarily provided. However, if the end vertical member 17 is provided with the rib 17r as described above, it is possible to obtain an advantage that the construction work for installing the surface member 10 on the vertical member 16 of the support structure part 15 is facilitated. Furthermore, when the support structure 15 is formed of only one vertical member, the ribs 15r are formed on both ends in the short direction, but even in this case, the ribs 15r are not necessarily provided.

[0055] <About cross member 19> In the above example, the height of the rib 19r of the cross member 19 is equal to or less than the thickness of the composite plate 11, but the height of the rib 19r is not limited to the above height. It is sufficient that the tip of the rib 19r is formed to a length that does not protrude from the surface 10a of the surface member 10. Moreover, the ribs 19r of the cross member 19 are not necessarily provided. However, providing the ribs 19r as described above on the cross member 19 has the advantage that the surface member 10 can be easily installed on the support structure 15.

[0056] In addition, in the deck material 1 of the present embodiment in the above example, the case where the horizontal member 19 is arranged between both ends of the adjacent vertical members 16 has been described. That is, the case where two horizontal members 19 are arranged between both ends of the adjacent vertical members 16 has been described. However, the horizontal member 19 may be arranged in the middle of the longitudinal direction of the adjacent vertical members 16. That is, in addition to the two locations between both ends of the adjacent vertical members 16, the horizontal member 19 may also be arranged in the middle of the longitudinal direction of the vertical members 16. In this case, the horizontal member 19 arranged in the middle of the longitudinal direction of the vertical members 16 needs to have a shape that does not have the rib 19r as described above.

[0057] The width and length of the horizontal member 19 are not particularly limited. The length L3 of the horizontal member 19 (see FIG. 5(A)) may be a length that can maintain an appropriate distance between adjacent vertical members 16. The width W2 of the horizontal member 19 may be formed to a width that can close the opening between adjacent vertical members 16 as described above, or if there is no need to close the opening between adjacent vertical members 16, it may be formed to a width that can be placed in the opening between adjacent vertical members 16 (i.e., equal to or less than the height H of the opening).

[0058] <About the coating layer 12> The material used for the coating layer 12 of the surface member 10 of the deck material 1 of this embodiment is not particularly limited as long as it is made of a material with a lower thermal conductivity than the metal plate 11a of the composite board 11 of the surface member 10. It is preferable to use a material with a certain degree of elasticity for the material of the coating layer 12. This can increase safety in the event that a person falls on the deck 1. For example, if the coating layer 12 is made of a coating material containing an elastic body such as rubber chips, the cushioning of the surface 1a of the deck material 1 will be increased, thereby increasing safety.

[0059] Also, the thickness of the covering layer 12 is not particularly limited, but it is desirable that it is thicker than the thickness of the composite plate 11. In particular, when the covering layer 12 is made of a material having elasticity as described above, if the thickness of the covering layer 12 is made thicker than the thickness of the composite plate 11, the cushioning property of the surface 1a of the deck material 1 can be increased, and the safety of the deck material 1 can be increased. For example, if the thickness of the composite plate 11 is about 3 to 10 mm, the thickness of the covering layer 12 can be about 6 to 10 mm. Note that, if the covering layer 12 is formed so as to include rubber chips, the cushioning property of the surface 1a of the deck material 1 can be maintained even if the thickness of the covering layer 12 is made thin to some extent. For example, if the thickness of the composite plate 11 is about 3 to 10 mm, the thickness of the covering layer 12 including an elastic body such as rubber chips can be about 6 to 10 mm.

[0060] <About Composite Board 11> In the above example, the composite board 11 does not have a through hole between the first surface 11f and the second surface 11s. However, the composite board 11 may have a through hole 11h (see FIG. 6). If the through hole 11h is formed in the composite board 11, the through hole 11h can function as a drain hole. This can prevent water from accumulating on the surface of the deck material 1, that is, on the surface member 10. In other words, if the coating layer 12 itself has a certain degree of water permeability, the moisture on the surface member 10 will pass through the coating layer 12 and reach the first surface 11f of the composite board 11. If the composite board 11 has the through hole 11h, the water that has reached the first surface 11f can be drained through the through hole 11h to the lower side of the composite board 11, that is, to the lower side of the surface member 10. Moreover, since the through hole 11h is only formed in the composite board 11b, the strength of the deck material 1 can be prevented from decreasing.

[0061] The size (hole diameter) of the through holes 11h formed in the composite plate 11 is not particularly limited, but in order to achieve both drainage properties and strength maintenance, the hole diameter is preferably 1 to 10 mm, and more preferably 3 to 5 mm.

[0062] Further, the position where the through hole 11h is formed in the composite plate 11 is not particularly limited, but it is preferable to form the through hole 11h so that it is not positioned above the vertical members 16 and horizontal members 19 that constitute the support structure 15. By forming the through hole 11h in the composite plate 11 in this manner, drainage can be improved and deterioration of the covering material 12 and the support structure 15 due to water or the like can be prevented. EXAMPLES

[0063] It was confirmed that the deck material of the present invention has the function of suppressing an increase in surface temperature.

[0064] In the experiment, the surface of the horizontally installed deck material of the present invention (deck material of the embodiment) was irradiated with light from an infrared lamp (manufactured by Taikatsu: model number TTF-300) from a position 45 cm above the surface, and the change in the surface temperature of the deck material of the embodiment was confirmed. The surface temperature of the deck material was measured using a thermography camera (manufactured by FLIR Systems: model number FLIR T460).

[0065] The deck material of the example used in the experiment has a cross-sectional shape shown in Fig. 10(B), and the experiment was conducted without a cross member. The materials and dimensions of the deck material and each part of the example are as follows. 1) Deck materials Length: 600mm, width: 144mm 2) Surface material Composite plate: metal plate (aluminum plate, thickness 0.1 mm), resin layer (polypropylene, thickness 2.8 mm) Coating layer: Paint material with rubber chips (Shikoku Kasei Building Materials Co., Ltd.: Chip Road), thickness 6 mm 3) Vertical members Aluminum extrusion profile (thickness 1.2 mm, width 144 mm, height 40 mm)

[0066] As a comparative deck material, a wood-based resin deck material (Fan Deck HG, manufactured by Shikoku Kasei Construction Materials Co., Ltd.) was used to confirm the change in surface temperature under the same conditions as in the example. The length and width of the comparative deck material were the same as those of the example.

[0067] The results are shown in Figure 11. In both Figures 11(A) and (B), the high temperature area expands over time, but in the deck material of the example, the temperature difference is small overall and it is almost uniform. Moreover, as shown in Figure 12, it can be seen that the temperature rise is suppressed and the maximum temperature is kept low in the deck material of the example compared to the deck material of the comparative example.

[0068] From the above results, it was confirmed that the deck material of the present invention can suppress the rise in surface temperature compared to conventional deck materials, and can also make the surface temperature more uniform. [Industrial Applicability]

[0069] The deck material of the present invention is suitable as a deck material used for a deck installed adjacent to a building such as a residence. [Explanation of symbols]

[0070] 1 Deck material 10 Surface material 11 Composite materials 11a metal plate 11b Resin layer 12 Covering layer 15 Support structure 16 Vertical members 17 End vertical member 17r Rib 18 Intermediate vertical member 19 Crosspiece 19r Rib D Deck

Claims

1. The surface member includes a composite plate having a resin layer provided between a pair of metal plates, and a coating layer provided on a first surface of the composite plate and having a lower thermal conductivity than the metal plates. A deck material characterized by:

2. The surface member and a support structure provided on a second surface of the composite plate of the surface member, The surface member is It has a shape that is long in one direction in a plan view, The support structure includes: The surface member has a plurality of longitudinal members arranged so that the axial direction of the longitudinal members is parallel to the longitudinal direction of the surface member, The plurality of vertical members are The vertical members are provided so as to have a space between adjacent vertical members in the short-side direction of the surface member, Two of the vertical members are The front surface member is provided at both ends in the short side direction. The deck material according to claim 1,

3. The two vertical members disposed at both ends of the surface member in the short direction are The surface member has a rib located outside the short edge of the surface member.

3. The deck material according to claim 2.

4. The ribs provided on the vertical members are The length from the second surface of the composite plate of the surface member to the tip of the rib is set to be equal to or less than the thickness of the surface member.

4. The deck material according to claim 3.

5. The structure has a plurality of horizontal members disposed between adjacent vertical members, Among the plurality of cross members, the cross members disposed at both ends in the longitudinal direction of the surface member are a rib located outboard of the longitudinal edge of the surface member; 3. The deck material according to claim 2.

6. The ribs provided on the cross members are The length from the second surface of the composite plate of the surface member to the tip of the rib is set to be equal to or less than the thickness of the surface member.

6. The deck material according to claim 5.

7. The coating layer is a layer containing an elastic material.

2. The deck material according to claim 1.

8. The thickness of the coating layer is greater than the thickness of the composite plate.

2. The deck material according to claim 1.

9. The deck material according to any one of claims 1 to 8 is arranged. A deck that features:

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