JP3806775B2 - Fireproof panel mounting structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention can be used as an inner wall material, an outer wall material, a roof material, a ceiling material, a floor material, a partition material, a fire door, or the like of a building or a structure, and has no deformation such as swelling and warping after production, and is also fireproof. The present invention relates to a fireproof panel mounting structure excellent in fire resistance and mechanical strength.
[0002]
[Prior art]
In general, a number of fireproof panels in which a core material made of a phenol resin foam (phenol foam) is sandwiched between a thin plate surface material and a back surface material have been invented and devised on the market.
[0003]
[Problems to be solved by the invention]
However, in the fireproof panel using phenol foam as the core material as described above, (1) Generally, the self-adhesion property of phenol foam is weak, the adhesion between the surface material, the back surface material and the core material is inferior, and peeling occurs. There was a risk of occurrence. (2) Generally, when the core material is made of various synthetic resin foams, the mechanical strength of the refractory panel itself is inferior, and the surface of the refractory panel is uneven due to the aging of the synthetic resin foam. In some cases, warping and other problems may occur. (3) Furthermore, a reaction gas is generated during the formation of the core material and remains in the core material, or the condensed water during the reaction is maintained in the phenol foam in the order of several tens of percent of the weight. Or, after construction of the refractory panel, moisture changes to water vapor due to changes in the outside air temperature, etc., and there is no escape route, so it remains between the surface or back material of the refractory panel and the core material. In some cases, the back surface of the material may cause gas blistering or warping, which causes problems that adversely affect the fireproof panel over time. For this reason, there also existed a malfunction which the attachment strength of a fireproof panel fell. (4) In addition, the connection structure of these fireproof panels was complicated and mainly had a horizontal structure, so the workability around the window was very bad. (5) Furthermore, there was no fireproof panel mounting structure that was light, vertically stretched, stretched in the left-right direction, had good workability, and passed the fireproof structure test of JIS-A-1304.
[0004]
[Means for Solving the Problems]
In order to eliminate such drawbacks, the present invention fixes a plurality of fireproof siding plates formed with a non-combustible sheet on a metal siding plate having a substantially inverted T-shaped cross section at a constant pitch, and between the surface material and the back surface material. A fitting for attaching a joint cover to cover the joint part on the entire wall surface between the fireproof panels by forming a core made of plastic foam and non-combustible board at the end and forming a butt structure. The refractory joint material is inserted and formed between the joints of the fixed panels, and the joint cover is fixed to the engaging part of the fixture fixed on the fixed part between the refractory panels. A mounting structure for a fireproof panel is provided in which the joint portion is fitted and the concave portion of the joint cover is fixed to the convex portion of the fixture with a fixture .
[0005]
【Example】
Hereinafter, an embodiment of a fireproof panel mounting structure according to the present invention will be described in detail with reference to the drawings. That is, FIG. 1 is a cross-sectional view showing the mounting structure of the fireproof panel, where α is a frame, β is a fixture made of nails, screws, etc., and used for placing on the frame α, A is a fireproof panel, and B is Fireproof panel, C is a fireproof joint material, D is a cover material composed of a fixture E and joint cover F, G is a concave cover material, H is a joint portion, γ is a blind rivet that joins the fixture E and joint cover F, etc. It is a fixing tool.
[0006]
More specifically, as shown in FIG. 2, the fireproof screen A is formed in a substantially inverted T-shaped cross section from a horizontal fixed piece 1 and a rising piece 2 protruding upward from the approximate center of the fixed piece 1. In the figure of the slat plate 3 and the slat plate 3, the slat plate is a long one made of a non-combustible sheet 4 formed on the surface side, and a slab formed by roll molding or extrusion molding of a metal plate material. Incombustible sheet 4 is integrated with eye plate 3 with an adhesive or the like. Reference numeral 1a denotes a tongue piece for enhancing waterproofness and preventing danger.
[0007]
As shown in FIG. 1, the fireproof panel A is formed on the back surface of the joint portion H of the fireproof panel B to prevent intrusion of rainwater and flames from the space between the fireproof panels B to the frame α side, and the fireproof panel B is fixed. It functions as a guide or the like for the case.
[0008]
The non-combustible sheet 4 is a sheet made of inorganic fibers, and is made of, for example, rock wool felt, ceramic wool, glass wool, or the like, and is laid along the shape of the siding plate 3, as shown in FIG. Adhering to the end of the fireproof panel B after the formation of H is effective in improving the fireproof performance of the joint H.
[0009]
As shown in FIG. 3, the fireproof panel B has a hat-shaped cross-sectional surface material 5, a core material 12 having a cross-sectional hat shape formed on the back surface of the surface material 5, and a core material 12. And a back surface material 15 covering at least the back surface in the longitudinal direction.
[0010]
The surface material 5 is composed of a decorative surface 6 in a horizontal plane, a side wall 7 in which both ends of the decorative surface 6 are bent downward, and a projecting piece 9 and a projecting piece 9 projecting outward at the lower end of the side wall 7 substantially parallel to the decorative surface 6. It is formed of a fixed portion 8 composed of a convex portion 10 that is bent up by raising the vicinity of the tip upward and a reinforcing piece 11 in which the tip of the convex portion 10 is bent inward in an L shape.
[0011]
The convex portion 10 bends the end portion of the protruding piece 9 to improve the strength of the fixing portion 8 and functions as a guide when the convex portion 19 of the fixture E described later is fitted. It is effective for improvement. In addition, fitting with the fixture E is made easy by rounding the front-end | tip of the convex-shaped part 10. FIG.
[0012]
As shown in FIG. 3, the back material 15 mainly covers the back surface of the core material 12 and has functions of a reinforcing material, a waterproof material, a moistureproof material, and a fireproof material, and the core material 12 is in direct contact with the housing α. It is useful as a separator to prevent.
[0013]
Further, the shape of the back surface material 15 is composed of a horizontal flat back surface 16 and reinforcing pieces 17 in which both ends of the back surface 16 are bent inwardly in a U-shape.
[0014]
When the reinforcing piece 11 and the reinforcing piece 17 are filled with the plastic foam 13 which is the raw material of the core material 12, the plastic foam 13 is prevented from leaking to the surface side of the convex portion 10 and the protruding piece 9, and the fireproof panel B To improve the dimensional accuracy of the working width by making the side edges of the refractor straight and improving the dimensional accuracy of the fireproof panel B, and to improve the heat insulation, air tightness, etc. It is. Furthermore, the convex part 10, the reinforcing piece 11, and the reinforcing piece 17 function also as reinforcement of the fireproof panel B itself.
[0015]
The surface material 5 and the back material 15 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, galvalume steel plate, enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride steel plate, etc.), sandwich steel plate (control) Corrugated steel sheets, etc.), and vinyl chloride resin, polycarbonate resin, etc. (including color plates coated with various colors) are formed into various shapes by roll molding, press molding, extrusion molding, etc., or inorganic Materials formed into various arbitrary shapes by extrusion molding, press molding, autoclave ripening form, etc., and further, as the back material 15, aluminum vapor-deposited paper, asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb) , Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide , Glass fiber nonwoven fabric, one equal, or those of two or more laminated or waterproof treatment, is made of a sheet material which has been treated flame retardant.
[0016]
The core material 12 is composed of a plastic foam 13 and non-combustible boards 14 formed at both ends. The plastic foam 13 is made of polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc. For example, a resol-type phenol stock solution, a curing agent, and a foaming agent are mixed and discharged onto the back surface of the surface material 5 or the back material 15 and heated to react / foam / It is formed by curing. In the plastic foam 13, lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fiber, Graphite etc. can be mixed to improve fire resistance and fire resistance.
[0017]
As a specific example of the plastic foam 13, a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a curing agent, etc. are mixed in a resol type phenol foam, foamed and cured, and finished density It is formed at 50 to 300 kg / m ³ position. When a wall is formed using the fireproof panel B using this plastic foam 13, the fireproof structure of JIS-A-1304 (there is a test of fire resistance 30 minutes, fire resistance 1 hour, fire resistance 2 hours according to fire resistance performance) It becomes the structure which has the fireproof performance which can pass the 1 hour test.
[0018]
The non-combustible board 14 is used to enhance the fire resistance of the joint portion H, and is used to pass the fire resistant structure 1 hour test of the fire resistant structure test of JIS-A-1304. Calcium board, gypsum board, pearlite cement board, rock wool board, slate board, ALC board, PC board, other inorganic lightweight body, inorganic lightweight foam, or one or more of these composite boards, or ultra-high density resin ( A high-density phenol foam or the like) is integrally disposed at both ends of the fireproof panel B. Of course, the incombustible board 14 may be formed over both ends.
[0019]
The refractory joint material C is formed at the joint portion H between the refractory panels B, and is made of, for example, rock wool felt, ceramic wool, glass wool, and the like. During the refractory structure one hour test of the refractory structure test of JIS-A-1304 It prevents the formation of a gap in the joint portion H and blocks the intrusion of the flame, and is useful mainly as a function of a refractory material, an airtight material and the like.
[0020]
The cover material D includes a fixture E and a joint cover F. As shown in FIG. 4, the fixture E is a short or long shape obtained by bending a metal plate material, and the fixing portion 18 having a horizontal plane shape. And the locking portion 22. More specifically, the fixing portion 18 has a horizontal surface, and in addition to the placement portion serving as the attachment position of the fixture β, the convex portion that contacts the convex portion 10 of the fireproof panel B during attachment and functions as a guide. 19. Of course, although not shown, a fixing hole for placing the fixing tool β can be formed in the fixing portion 18 to improve workability.
[0021]
The locking portion 22 is formed by a rising piece 20 in which both end edges of the fixing portion 18 are bent upward, and a locking piece 21 that is bent and protrudes outward at the tip of the rising piece 20. The material is a metal material such as a color steel plate or stainless steel. Further, the locking piece 21 is for locking an engagement piece 26 of the joint cover F described later, and fixing the joint cover F to the joint portion H between the fireproof panels B.
[0022]
The joint cover F is made of the above-described metal thin plate material, and as shown in FIG. 5A, the shape of the joint cover F is a horizontal surface-shaped decorative surface portion 23, and a concave portion 24 formed by recessing a substantially central portion of the decorative surface portion 23. And a side wall decorative surface 25 in which both end edges of the decorative surface portion 23 are bent downward, and an engagement piece 26 bent in a shape capable of engaging the front end of the side wall decorative surface 25 with the above-described locking piece 21 inward. The engagement portion 27 is included. 5 (b) to 5 (d) show a joint cover F in which the engaging pieces 26 are formed at a constant pitch (about 50 to 300 mm) with an interval between them. It is formed for this purpose. 5C is an end view of the aa portion of FIG. 5B, and FIG. 5D is an end view of the bb portion of FIG. 5B.
[0023]
More specifically, as shown in FIG. 1, the decorative surface portion 23 has a fixture β used when fixing the fireproof panel B on the housing α by fixing the joint cover F to the joint portion H with the fixture E. To prevent the fixture β from being exposed to the outside.
[0024]
The concave portion 24 is formed in a substantially central portion of the decorative surface portion 23, and includes a bottom portion 24a formed in parallel with the decorative surface portion 23 and side portions 24b formed on both sides thereof. The bottom portion 24a is a fixture such as a blind rivet. The groove 24c, which is a portion joined and fixed to the convex portion 19 of the fixture E by γ and surrounded by the bottom portion 24a and the side portion 24b, aims to conceal the fixture γ and improve the design. The recessed portion cover material G as shown in FIG. 6 is inserted.
[0025]
Further, the engagement piece 26 is engaged with the engagement piece 21 of the fixture E, and the joint cover F is securely fixed to the joint portion H without detachment by fitting the joint cover F to the fixture E. Is for.
[0026]
The concave cover material G is made of, for example, EPM (ethylene propylene rubber), EPDM (ethylene propylene terpolymer) (also known as EPR, EPT), etc., and has the smallest specific gravity among natural rubber and synthetic rubber. It has excellent resistance to heat, good electrical characteristics, excellent weather resistance, heat resistance (heat aging resistance), ozone resistance, chemical resistance, and the like. The concave cover material G is for the purpose of concealing the fixture γ and improving the design, and is formed in a shape that substantially matches the groove 24c of the joint cover F as shown in FIG. The notch 28 can be provided at a location in contact with the fixture γ, and coloring can also be performed.
[0027]
Next, the construction method for forming the fireproof panel mounting structure according to the present invention will be described. Now, in order to construct the outer wall as shown in FIG. 1, a fireproof panel A in which a nonflammable sheet 4 made of rock wool felt is formed on a floorboard 3 made of a thin metal plate as shown in FIG. As B, as shown in FIG. 3, a color steel plate having a thickness of 0.5 mm is used as the surface material 5 and the back material 15, and a raw material made of phenol foam is used as the surface material 5 and the back surface as the plastic foam 13. Filled between the materials 15, reacted, foamed, then cured to form 150 kg / m ³ , an incombustible board 14 made of a calcium silicate plate formed at the end and integrated, as a fireproof joint material C Rock wool felt, fixture E is made of stainless steel (0.6 mm thick) as shown in FIG. 4, and joint cover F is roll-formed of the same material as surface material 5, as shown in FIG. 5 (a). The one formed in this way and the concave cover material G are made of EPDM. Further, when the width between the rising pieces 2 of the fireproof screen board A is T and the entire width of the fireproof panel B is W, the mounting pitch of the fireproof screen board A is set to T + W. Of course, a preferred pitch is mounting pitch = T + W.
[0028]
Accordingly, the frame α made of C-type steel is provided with a refractory panel A as shown in FIG. 2 vertically, with a total width of 590 mm of the refractory panel B plus a width of 10 mm of the rising piece 2 of the refractory panel A at a pitch of 600 mm. A plurality of pieces are fixed by a fixing tool β. When the attachment (allocation) of the fireproof screen A is completed, the fireproof panel B is inserted between the rising pieces 2 of the fireproof screen A, and the protruding piece 9 is fixed to the housing α by the fixture β.
[0029]
Thus, if the joint part H between the fire-resistant panels B is formed, the said fire-resistant joint material C will be planted in a continuous manner in the joint gap between the fire-resistant panels B. When the construction of the refractory joint material C is completed, as shown in FIG. 1, a plurality of fixtures E are fixed by fixing the fixing portion 18 of the fixture E on the protruding piece 9 of the fireproof panel B with the fixture β. To do. When all the attachment of the fixture E is completed, the engagement portion 27 of the long joint cover F as shown in FIG. Fixing with blind rivets, the joint H between the fireproof panels B is covered with a joint cover F. Finally, the recess cover material G is formed in the recess 24 to complete the construction.
[0030]
What has been described above is only one example of the mounting structure of the fireproof panel according to the present invention, and the fireproof panel A as shown in FIGS. 7 (a) to (d) to FIGS. 10 (a) to (f). , Fixture E, joint cover F, and concave cover material G may be used.
[0031]
That is, FIGS. 7A to 7D show other embodiments of the fireproof board A, and in particular, FIGS. 7C and 7D show the non-combustible board 14a formed between the rising pieces 2 or on the back surface. This is a fireproof screen board A with enhanced fire resistance.
[0032]
FIGS. 8A to 8F show other embodiments of the fixture E. In particular, FIG. 8D sandwiches the concave portion 24 of the joint cover F from both sides, and also functions as a guide for attachment. Protrusions 19 a are provided at both ends of the convex portion 19.
[0033]
FIGS. 9A to 9E show other embodiments of the joint cover F. In particular, FIGS. 9B to 9D show an extended portion 23a obtained by extending both ends of the decorative surface portion 23 outward. (C), the packing material 23b is continuously arranged in the longitudinal direction of the joint cover F at the lower end portion of the extension 23a in the figure, and the waterproofness, airtightness, fireproofness, etc. are improved, and the joint is provided. The entire portion H is concealed from the appearance to improve the design.
[0034]
10A to 10F show modified examples of the concave cover material G. FIG. In particular, FIGS. (D) and (e) are examples in which a hollow portion 28a for facilitating insertion into the groove 24c is provided.
[0035]
11 (a) to 11 (c) show another embodiment of the fireproof panel mounting structure according to the present invention, and FIG. 11 (a) shows the non-combustible board 12 in the vicinity of the fixing portion 8 of the fireproof panel B. 14 is effective in improving the strength of attaching the fireproof panel B to the housing α by the fixture β, facilitating the formation of the fireproof panel B, improving the fireproof performance of the joint portion H, and the like. (B) The figure is an example which expanded the range which the incombustible board 14 occupies with respect to the core material 12 more than the figure (a), and improved the intensity | strength, the ease of manufacture, and fire resistance further. (C) The figure shows that the width of the rising piece 2 and the refractory joint material C of the fireproof board A is increased, the non-combustible board 14a is arranged in the rising piece 2, and the fixing tool γ is used to remove from the concave portion 24 of the joint cover F. This is an example in which the strength of the joint portion H as a whole is improved by directly placing it on the housing α via the convex portion 19 of the fixture E, the fireproof joint material C, and the rising piece 2.
[0036]
12 (a), (b) to FIG. 16 (a) to (c) (in FIG. 12 to FIG. 14 (b) is an enlarged sectional view of a portion c of FIG. 12 (a)). It is an expanded sectional view which shows an Example, The air-permeable member 29, the adhesive agent 30, and the pile 31 are formed in the back surface (The figure shows the case where it forms in the back surface of the surface material 5 in the figure) of the surface material 5 and the back surface material 15. This shows a case where the pile layer 32 is formed. Of course, the air-permeable member 29, the adhesive 30, and the pile 31 can be formed on the back surfaces of both the front surface material 5 and the back surface material 15.
[0037]
More specifically, the air-permeable member 29 is as shown in FIGS. 15A to 15C, and any air-permeable member that forms a minimal gap in the plastic foam 13 may be used. Cotton, hemp, hair, silk, etc. (vegetable fibers, animal fibers, synthetic resin fibers, inorganic fibers, etc.) are thinned and stretched for a longer time. More specifically, the minimal gap formed in the gas permeable member 29 is a gas such as excess gas components (chlorine, carbon dioxide, methylene chloride, formaldehyde, water vapor, hydrogen, etc.) in the plastic foam 13 or condensed water during the reaction. The fire-resistant panel B is excellent in strength and fire-resistant performance without deformation such as swelling and warping caused by internal gas on the front and back surfaces of the fire-resistant panel B after manufacture.
[0038]
Examples of the adhesive 30 include elastomer type epoxy resins, isocyanates such as emulsion types such as methylene diisocyanate (abbreviation MDI), hot melt types, and modified isocyanates such as urethane modified, burette modified isocyanate, isocyanurate modified isocyanate and the like. For example, epoxy resin, phenol resin, urethane resin, vinyl resin, acrylic resin, polyester resin, EVA resin, and other synthetic resin adhesives, rubber adhesives, oil adhesives, ultraviolet rays, etc. It consists of a curable adhesive.
[0039]
The pile 31 is disposed on at least a part of the surface 5 or the back surface 15 on the plastic foam 13 side via an adhesive 30, and forms a pile layer 32 composed of a large number of piles 31. It is. The material of the pile 31 is made of vegetable fiber, animal fiber, synthetic resin fiber, etc., for example, at least one of glass wool, polyester, cotton, silk, cotton, nylon, feathers, rock wool, various metals, etc. Used as a thread, or as a fiber that has been stretched thinly and long.
[0040]
The pile 31 is formed with an arbitrary diameter, a length of 1 to 25 mm, a thickness of 10 to 200 denier, and a spreading rate of 10 to 300 g / m ² . The pile 31 embeds and fixes the root in the adhesive 30, and the tip extends in the direction of the plastic foam 13 as long as it protrudes from the adhesive 30. In order to be strongly bonded to the plastic foam 13, it is preferable to be substantially perpendicular to the back material 15. For example, the pile 31 is made of nylon as a material, has a length of about 8 mm, a thickness of about 60 denier, and a spreading rate of about 70 g / cm ² , thereby providing an adhesive strength between the pile layer 32 and the plastic foam 13. Can be made powerful.
[0041]
A large number of piles 31 are disposed on at least a part of the back surface side of the front surface material 5 or the back surface material 15 to form a pile layer 32, which penetrates into the liquid in the formation process of the plastic foam 13 and is cured later. It greatly improves the bonding strength between the surface material 5 or the back surface material 15 and the plastic foam 13, and prevents the surface material 5 and the back surface material 15 from being swollen by internal gas and from being separated from the plastic foam 13 due to warping. is there.
[0042]
The pile layer 32 is formed by implanting a large number of piles 31 while the adhesive 30 applied by a predetermined method is not dried on at least a part of the back surface of the surface material 5 or the back material 15. There are a method of directly mechanically planting one or a plurality of components directly, a method of spraying piles 31 from the adhesive 30, and the like.
[0043]
16A to 16C are cross-sectional views showing other examples of the fireproof panel B. FIG.
[0044]
【The invention's effect】
As described above, according to the fireproof panel mounting structure according to the present invention, (1) the construction is excellent because it is a structure for fixing both ends of the fireproof panel. (2) Since the fixing part of the fireproof panel by the fixing tool is completely covered by the joint cover, the head of the fixing tool is not exposed to the outside. (3) Since the deformation when the fireproof panel is fixed is covered with the joint cover, no skill is required for construction. {Circle around (4)} The single unit can pass the fire resistant structure 1 hour test (JIS-A-1304) of the fire resistant structure test. (5) It is lighter than a ceramic or cement fireproof panel that can pass the fireproof structure 1 hour test (JIS-A-1304) of the fireproof structure test with a single panel, and the workability is dramatically improved. (6) Workability is good because it can be stretched in both directions. (7) Since the fireproof panel is attached using the fireproof panel as a guide, not only the fire resistance of the joint is greatly improved, but also the construction is easy and accurate, and the appearance is excellent. It becomes a structure. (8) The convex part formed in the fixed part of the fireproof panel prevents intrusion of rainwater and the like, and improves the waterproofness. (9) Since the concave portion formed in the concave cover material is fixed by the fixture, the concave portion cover material is securely fixed. There are features and effects.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a fireproof panel mounting structure according to the present invention.
FIG. 2 is an explanatory view showing an example of a fireproof board.
FIG. 3 is an explanatory diagram showing an example of a fireproof panel.
FIG. 4 is an explanatory view showing an example of a fixture.
FIG. 5 is an explanatory diagram showing an example of a joint cover.
FIG. 6 is an explanatory view showing an example of a concave cover material.
FIG. 7 is an explanatory view showing another embodiment of the fireproof board.
FIG. 8 is an explanatory view showing another embodiment of the fixture.
FIG. 9 is an explanatory view showing another embodiment of the joint cover.
FIG. 10 is an explanatory view showing another embodiment of the concave cover material.
FIG. 11 is a cross-sectional view showing another embodiment of the fireproof panel mounting structure according to the present invention.
FIG. 12 is an explanatory view showing another embodiment of the fireproof panel.
FIG. 13 is an explanatory view showing another embodiment of the fireproof panel.
FIG. 14 is an explanatory view showing another embodiment of the fireproof panel.
FIG. 15 is a perspective view showing a breathable member.
FIG. 16 is an explanatory view showing another embodiment of the fireproof panel.
[Explanation of symbols]
α Frame β Fixture γ Fixture A Fireproof panel B Fireproof panel C Fireproof joint material D Cover material E Mounting tool F Joint cover G Recess cover material H Joint part 1 Fixing piece 1a Tongue piece 2 Standing piece 3 Cover plate 4 Non-combustible sheet 5 Surface material 6 Decorative surface 7 Side wall 8 Fixing portion 9 Protruding piece 10 Protruding portion 11 Reinforcing piece 12 Core material 13 Plastic foam 14 Non-combustible board 14a Non-combustible board 15 Back surface material 16 Back surface decorative surface 17 Reinforcing piece 18 Fixing portion 19 Convex Portion 19a Protrusion 20 Standing piece 21 Locking piece 22 Locking portion 23 Decorative surface portion 23a Extension portion 23b Packing material 24 Recess 24a Bottom portion 24b Side portion 24c Groove portion 25 Side wall decorative surface 26 Engagement piece 27 Engagement portion 28 Notch 28a Hollow portion 29 Breathable member 30 Adhesive 31 Pile 32 Pile layer

Claims (1)

A horizontal plate-like fixing piece, a siding plate having a rising piece protruding upward from a substantially central portion of the fixing piece, a fireproof siding plate formed of a non-combustible sheet formed on the front surface or the back surface of the lining plate, The decorative face, the side wall with both ends of the decorative face bent downward, the projecting piece projecting outwardly with the lower end of the side wall substantially parallel to the decorative face, and the vicinity of the tip of the projecting piece raised upward A plastic foam is formed between a back surface material composed of a metal surface material composed of convex portions, a horizontal back surface decorative surface, and reinforcing pieces bent upward at both ends of the back surface decorative surface, and non-combustible boards at both ends A long fireproof panel formed by sandwiching the core material formed, a horizontal plane fixed part, a convex part protruding from the center part of the fixed part, and rising pieces bent upward at both ends of the fixed part The tip of the rising piece is outward or inward A fixture having a locking part made of a bent and protruding locking piece, a horizontal surface-shaped decorative surface part, a recessed part in which the central part of the decorative surface part is recessed inward, and both ends of the decorative surface part are bent downward. A side wall decorative surface and a joint cover formed with an engagement portion formed by bending the tip of the side wall decorative surface inwardly or outwardly and projecting engagement pieces, and a plurality of fireproof screen boards at a constant pitch. Fix to the main body, insert the fireproof panel between the fireproof screens, and fix the protruding pieces of the fireproof panel with the fixtures. A material is arranged, and the fixture is fixed by a fixture in a straight line in parallel with the longitudinal direction of the fireproof panel on the protruding piece between the fireproof panels, and the joint cover is further fixed to the engaging portion of the fixture. The engaging part is fitted and formed integrally, and the concave part is fixed. Mounting structure for the refractory panels, characterized in that it is fixed to the convex portion of the fixture by immediately.

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