JPH10169040A - Fireproof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof panel which can be used for an inner wall material, an outer wall material, a roof material, a ceiling material, a floor material, a partition material or a fire preventive door in architecture and a building, and can check deformation after its manufacture such as expansion and warping, and is excellent in fire preventive property, fireproof property and mechanical strength. SOLUTION: A metal surface material is composed of a keystone type decorated plane 2 having a formed irregularity; a side wall 3 where both the ends of the decorated plane 2 are bent inward; a protrusive piece 5 where the tip of the side wall 3 protrudes outward in about parallel to the decorated plane 2; a waterproof piece 7 where a concave groove stripe 6 formed on the protrusive piece 5 and the tip of the groove stripe 6 are bent outward; and a water proof tongue piece 8 where the tip of the water proof piece 7 is turned up inward. A water proof panel A is formed by forming a plastic foam 10 between a metal surface material 1 and a back material 12 composed of a horizontal plane-shaped back decorated plane 13 and a reinforcing piece 14 formed by bending both the ends of the back decorated plane 13 inward, and sandwiching a core material 9 having noncombustible board 11 formed at both the ends.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to construction,
It can be used as an exterior wall material, roof material, ceiling material, floor material, partition material, fire door, etc., and has no deformation such as swelling or warpage after production, and has excellent fire resistance, fire resistance, and mechanical strength. It is about panels.

[0002]

2. Description of the Related Art In general, many fireproof panels in which a core material made of a phenol resin foam (phenol foam) is sandwiched between a thin plate-like front surface material and a back surface material have been invented, devised, and put on the market.

[0003]

However, in the above-described fireproof panel, the connecting portion structure is complicated.
In addition, the workability, such as around windows, was very poor due to the main structure being horizontal. Light, vertical, good workability,
JIS-A-1304 (Fire resistance test method for building structure)
No fireproof panel mounting structure was able to pass the fireproof structural test. Workability for large buildings was poor. The direction of construction was decided, and construction could not be performed on the left and right simultaneously. Replacement after construction was almost impossible, or very troublesome and dangerous work. There is no change in the makeup surface,
There was a problem with the appearance. Generally, when various types of synthetic resin foams are used as the core material, the mechanical strength of the panel itself is inferior, and due to the aging of the synthetic resin foam, irregularities or warping of the panel surface may occur. There were cases. During the formation of the core material, a reaction gas is generated and remains in the core material, or the phenol foam retains several tens of percent of the weight of the condensed water during the reaction. Later, due to changes in the outside temperature, etc., the water vaporizes and remains between the core material and the surface material or the back surface of the panel because there is no escape route, and gas swelling occurs on the back surface of the panel and the back surface of the back material. In some cases, the panel may be adversely affected with time, such as warping or warping. And the like.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such disadvantages, the present invention provides a keystone-like decorative surface having irregularities, a side wall having both ends of the keystone-like decorative surface bent inward, and a keystone-like decorative surface. A protruding piece that protrudes outward substantially parallel to the decorative surface, a concave groove formed on the protruding piece, a waterproof piece having the tip of the groove bent outward, and a waterproof tongue piece having the tip of the waterproof piece folded inward. A core made of a metal surface material consisting of: a plastic foam formed between a back surface material consisting of a horizontal back surface decorative surface and a reinforcing piece having both ends of the back surface decorative surface bent inward, and a non-combustible board formed at both ends. It is intended to provide a fireproof panel formed by sandwiching materials.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a fireproof panel according to the present invention. That is, FIG. 1 is a cross-sectional view showing the refractory panel, FIG. 2 is a cross-sectional view showing a construction state of the refractory panel A, α is a frame, β is a fixture, β
₁ is a head of the fixing tool β, A is a fireproof panel, B is a fireproof joint panel, C is a fireproof joint material, D is a cover material including a fixture E and a joint cover F, G is a joint portion, and H is a packing material. It is.

As shown in FIG. 1, the fire-resistant panel A has a hat-shaped cross section and a long surface material 1;
Is formed in a sandwich structure from a core material 9 having a hat-shaped cross section formed on the back surface and a back material 12 covering at least the back surface in the longitudinal direction of the core material 9.

As shown in FIG. 1, a surface material 1 has a keystone-like decorative surface 2 in a horizontal plane and both side edges of the keystone-like decorative surface 2 inward, perpendicular to the keystone-like decorative surface 2, or inward and outward. A side wall 3 which is bent inclining toward the side, a protruding piece 5 which is formed by bending the lower end of the side wall 3 outward and extending, and a groove 6 which is recessed in the middle of the protruding piece 5 so that the fixture β can be stored therein. The fixing portion 4 is formed by a waterproof piece 7 having a tip of the protruding piece 5 bent outward and a waterproof tongue 8 having a tip of the waterproof piece 7 bent inward.

The keystone-like decorative surface 2 is obtained by forming the surface material 1 in an uneven shape and forming it in a keystone tone (wavy shape). By forming the surface material 1 in an uneven shape as described above, the rigidity of the fireproof panel A is enhanced and the strength is improved, and the surface material 1 is prevented from being deformed due to an excess gas component of the core material 9. Things. Furthermore, by forming the decorative surface in an uneven shape, the decorative surface is given a deep (shaded) and solid appearance, and wipes a cheap image of metal. The width of the unevenness is about 10 mm to 50 mm, and the depth is about 5 mm to 20 mm.

The fixing piece 5 is a portion on which a mounting tool E described later is placed and to which the mounting tool E is fixed. The groove 6 is a fixing tool β.
By accommodating, in which the head beta ₁ fixture beta with refractory panels A fixed during fitting E fixing to be described later is formed so as not to interfere. For this purpose, the fixture E
Is formed in a long shape, the fixing device E is fixed after the fireproof panel A is fixed.
Can be fixed. When fixing without forming the groove 6, if the fixture E is short, the fixture E
What is necessary is just to fix the fixing part 4 of the fireproof panel A exposed in between with the fixing tool β, but when using a long thing,
The fireproof panel A and the fixture E must be fixed at the same time, and there is a problem in workability. By forming the groove 6 in this manner, the mounting fixture E can be reliably installed without any problem in workability regardless of whether the mounting fixture E is long or short. Also,
The groove 6 also has a function of preventing capillary action and improving waterproofness.

As shown in FIG. 2, the waterproof piece 7 and the waterproof tongue piece 8 are formed so that rainwater or the like, which might enter from the joint G, does not enter inside. Further, since the tip is formed in a round shape, the workability of the refractory joint material C described later is improved.

The waterproof tongue piece 8 is formed by forming the tip of the waterproof piece 7 into a U-shape in the figure so that rainwater or the like does not enter the inside. Also, a waterproof piece 7, a waterproof tongue piece 8
Functions as a reinforcement for the fireproof panel A itself. Furthermore, a gap 8a is formed between the waterproof piece 7 and the waterproof tongue piece 8, and has a function of returning rain.

As shown in FIG. 1, the back material 12 is mainly composed of the core material 9.
And has a function of a reinforcing material, a waterproofing material, a moisture-proofing material, and a fireproofing material, and also serves as an isolating material for preventing the core material 9 from directly contacting the skeleton α.

The shape of the back material 12 includes a back surface decorative surface 13 in a horizontal plane, and a reinforcing piece 14 having both ends of the back surface decorative surface 13 bent inward in a U-shape.

The surface material 1 and the back surface material 12 are made of a thin metal plate, for example, iron, aluminum, copper, stainless steel, titanium, aluminum.
Zinc alloy plated steel plate, galvalume steel plate, enameled steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (damping steel plate, etc.), vinyl chloride resin, polycarbonate resin, etc. (Of course, these are painted in various colors. A variety of shapes, including rolls, presses, extrusions, etc.
Alternatively, an inorganic material formed into various arbitrary shapes by extrusion molding, press molding, autoclaving, or the like, and further, as the back surface material 12, aluminum-evaporated paper, asbestos paper, kraft paper, asphalt felt, metal foil (A
1, Fe, Pb, Cu), a synthetic resin sheet, a rubber sheet, a cloth sheet, a gypsum paper, an aluminum hydroxide paper, a glass fiber nonwoven fabric, or a laminate of two or more kinds, or a waterproof treatment, difficult It is made of a sheet-like material that has been subjected to a combustion treatment.

The core 9 is made of a plastic foam 10
And a non-combustible board 11 formed at both ends, and the plastic foam 10 is a synthetic resin foam such as a polyurethane foam, a polyisocyanurate foam, a phenol foam, a vinyl chloride foam, a polyethylene foam, a polystyrene foam, and a urea foam. For example, it is formed by mixing a stock solution of resol-type phenol, a curing agent, and a foaming agent, discharging the mixture to the back side of the front surface material 1 or the back surface material 12, and heating to react, foam, and cure. In the plastic foam 10, light-weight aggregates (pearlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, aluminum hydroxide, etc.) and fibrous materials (glass wool, rock wool, carbon fiber, Graphite etc.)
Fire resistance can also be improved.

As a specific example of the plastic foam 10, a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a curing agent, etc. are mixed into a resol type phenol foam, and foamed and cured. And a finished density of about 50 to 300 kg / m ³ . When the wall is formed using the fireproof panel A using the plastic foam 10, J
IS-A-1304 (Fire resistance 30 minutes, Fire resistance 1
Time, fire resistance 2 hours test).

A resol type phenol foam (hereinafter referred to as "resol type phenol foam")
Phenol foam) is manufactured mainly by a continuous foam molding method and has nonflammability, low smoke emission and low toxicity compared to other synthetic resin foams (plastic foam). It is. The metal siding material formed by sandwiching the phenol foam on a metal plate is JIS-A-1301 alone.
(Fire test method for wooden part of building), JIS-A-1
It has a fire protection performance that passes a fire protection structure test of 302 (fire prevention test method for a non-combustible structure portion of a building).

The non-combustible board 11 is used to enhance the fire resistance of the joint G. The non-combustible board 11 is used to pass a one-hour fire resistance test of a fire resistance test of JIS-A-1304. Board, calcium carbonate board, gypsum board, perlite cement board, rock wool board, slate board, ALC board, PC board, other inorganic lightweight body,
An inorganic lightweight foam, one or more of these composite plates, or an ultra-high-density resin (high-density phenol foam or the like) is integrally provided at both ends of the fireproof panel A. Of course, the non-combustible board 11 may be formed over both ends.

More specifically, as shown in FIG. 3, the fireproof floor plate B has a substantially inverted T-shaped cross section from a fixed piece 15 having a horizontal surface and a rising piece 16 protruding substantially upward from substantially the center of the fixed piece 15. It is a long sheet made of a metal floor plate 17 formed on the surface of the vehicle and a non-combustible sheet 18 formed on the front side in the drawing of the floor plate 17, and the metal plate material is formed by roll forming or extrusion forming. Non-combustible sheet 1
8 is integrated with an adhesive or the like. Reference numeral 15a denotes a tongue piece for enhancing waterproofness and preventing danger.

As shown in FIG. 2, the fireproof seam plate B is formed on the back surface of the joint G of the fireproof panel A to prevent infiltration of rainwater, flame, etc. from the space between the fireproof panels A to the frame α side. It functions as a guide or the like when the panel A is fixed.

The noncombustible sheet 18 is a sheet made of inorganic fibers, for example, rock wool felt, ceramic wool, glass wool, or the like.

The refractory joint C is a joint G between the refractory panels A.
For example, rock wool felt,
Made of ceramic wool, glass wool, etc., JIS
-Useful as a function such as a fire-resistant material and an air-tight material mainly by preventing a gap from being formed in the joint G at the time of a one-hour fire-resistant structure test of the fire-resistant structure test of A-1304, thereby preventing the penetration of a flame. It is.

The cover member D includes a fixture E and a joint cover F. As shown in FIG. 4, the fixture E has a long or short shape (in this case, a plurality of lengths) formed by bending a metal plate material. Are formed at a constant pitch), and are composed of a horizontal plane-shaped fixing portion 19 and a locking portion 23. More specifically, the fixing portion 19 has a horizontal plane shape, and includes a fixing tool β setting portion and a stabilizing piece 20 serving as a mark of a mounting position. Of course, although not shown, a fixing hole for fixing tool β may be formed in the fixing portion 19 to improve workability.

The locking portion 23 includes a rising piece 21 having both ends of the fixing section 19 bent upward, and a rising piece 21.
Is formed from a locking piece 22 that is bent outward and protrudes outward. The material is a metal material, for example, a color steel plate, stainless steel, or the like. Further, the locking piece 22 locks an engaging piece 26 of the joint cover F described later, and the joint cover F
Is fixed to the joint G between the refractory panels A.

As shown in FIG. 5, the joint cover F is made of the above-described thin metal plate, and has a horizontal decorative surface portion 24 and a side wall decorative surface 25 having both edges of the decorative surface portion 24 bent downward. And an engaging piece 26 bent inward so that the tip of the side wall decorative surface 25 can be locked to the locking piece 22 described above.
And an engaging portion 27 comprising: The joint cover F is formed with a keystone-like decorative surface 24a, and is formed to have the same appearance as the keystone-like decorative surface 2 of the fireproof panel A as shown in FIG. Further, the keystone-like decorative surface 24a is provided with the waterproofing piece 7.
To further improve the workability and waterproofness. Of course, it is also possible to form only the joint portion in another design without forming the keystone-like decorative surface 24a.

More specifically, as shown in FIG. 2, the decorative surface portion 24 is fixed to the joint portion G by fixing the joint cover F with the fixture E, thereby fixing the fireproof panel A on the frame α. This is for covering the fixture β so that the fixture β is not exposed to the outside.

The engaging piece 26 is the engaging piece 22 of the fixture E.
The joint cover F is fitted to the fixture E to securely fix the joint cover F on the joint portion G without detachment.

The packing material H is formed to enhance the waterproofness of the joints G. For example, the fixed and elastic packing material H is, for example, foamed rubber, polyvinyl chloride, chloroprene, chlorosulfone. Polyurethanes, ethylene propylenes, asphalt-impregnated polyurethanes, EPM, EPDM, and other commercially available materials, or silicone-based (reaction-curable, moisture-curable) ), Modified silicone (reaction curing type), polysulfide (reaction curing type), polyurethane (reaction curing type,
(Moisture curing type), SBR type (dry curing type), acrylic type (dry curing type) and the like. Needless to say, a fire-resistant packing material H mixed with a flame-retardant material such as an inorganic material may be used.

Next, a method for constructing a fireproof panel according to the present invention will be described. Now, in order to form an outer wall as shown in FIG. 2, a fireproof panel B having a non-combustible sheet 18 made of rock wool felt formed on a panel 17 made of a thin metal sheet as shown in FIG. A is as shown in FIG.
A 5 mm-thick colored steel plate is used. As a plastic foam 10, a raw material made of phenol foam is filled between the front surface material 1 and the back surface material 12, reacted and foamed, and then cured to form 150 kg / m ^3. A non-combustible board 11 made of a calcium silicate plate is formed and integrated in a portion,
Rock wool felt, mounting fixture E as fireproof joint material C
Is made of stainless steel (0.6 mm
As the joint cover F, the same material as the surface material 1 is roll-formed and formed as shown in FIG. Further, assuming that the width between the rising pieces 16 of the fireproof seam board B (including the non-combustible sheet 18) is T and the entire width of the fireproof panel A is W, the mounting pitch of the fireproof seam board B ≧ T + W.
Of course, the mounting pitch = T + W is a preferable pitch.

Therefore, a fireproof panel B as shown in FIG.
A plurality of the fixing pieces β are fixed at a pitch of 600 mm, which is obtained by adding 5 mm to the width of the rising pieces 16 of the refractory floor plate B to 5 mm. When the installation (layout) of the fireproof seam board B is completed, the fireproof panel A is inserted between the rising pieces 16 of the fireproof seam board B, and the groove 6 is fixed to the frame α by the fixing tool β.

After the joints G between the refractory panels A are formed in this way, the refractory joints C are continuously planted in the joint gaps between the refractory panels A. When the construction of the refractory joint C is completed, the fixing portion 19 of the fixture E is fixed on the projecting piece 5 of the refractory panel A by the fixture β as shown in FIG. When the mounting of the fixture E is completed, the engaging portion 27 of the long joint cover F as shown in FIG. The part G is covered with the joint cover F to complete the construction.

The above description is only one embodiment of the fireproof panel according to the present invention, and FIGS. 6 (a) to 6 (e) to FIG.
It can also be formed using a fireproof panel A, a fireproof panel B, a fixture E, and a joint cover F as shown in FIGS.

6 (a) to 6 (e) to 8 (a) to 8 (a).
(D) is sectional drawing which shows the other Example of the fireproof panel A. FIG.

In particular, FIGS. 6 (e) and 7 (d) show a refractory panel A in which a space 2a is formed in an uneven portion so that excess gas components in the core material 9 are discharged outside from a vertical joint portion or the like. It is.

FIGS. 7A to 7D are cross-sectional views showing another embodiment of the fireproof panel A.
(The figure shows the case formed on the back surface of surface material 1)
This shows a case where a permeable member 28, a pile layer 29 formed with a plurality of piles (in a dense state), and a permeable fireproof sheet 30 are formed. Of course, the air-permeable member 28, the pile layer 29, and the air-permeable fire-resistant sheet 30 can be formed on both the back surface of the front surface material 1 and the back surface material 12. Of course, each member is bonded by using the self-adhesive property of the plastic foam 10 or an adhesive.

Examples of the adhesive include an elastomer type epoxy resin, an isocyanate such as an emulsion type such as methylene diisocyanate (abbreviated as MDI), a hot melt type, and a modified isocyanate thereof such as a urethane-modified, a buret-modified isocyanate, and an isocyanurate-modified isocyanate. One type of isocyanate or the like is used, for example, an epoxy resin, a phenol resin, a urethane resin, a vinyl resin, an acrylic resin, a polyester resin, a synthetic resin adhesive such as an EVA resin, a rubber adhesive, an oil adhesive. , An ultraviolet-curable adhesive, or the like.

More specifically, the gas permeable member 28 may be any gas permeable member that forms a very small gap in the plastic foam 10, such as cotton, hemp, wool, and the like.
Fibers of silk and the like (vegetable fibers, animal fibers, synthetic resin fibers, inorganic fibers, and the like) are obtained by stretching a thin, long, and twisted fiber. More specifically, the permeable member 28
Is formed to allow the gas such as surplus gas components (chlorine, carbon dioxide, methylene chloride, formaldehyde, steam, hydrogen, etc.) in the plastic foam 10 or gas such as condensed water during the reaction to flow. There is no deformation such as swelling or warpage due to internal gas on the front and back surfaces of the fireproof panel A after manufacturing, and the fireproof panel A has excellent strength and fireproof performance.

The pile forming the pile layer 29 is provided on at least a part of the surface of the front surface material 1 or the back surface material 12 on the side of the plastic foam 10 with an adhesive therebetween. The layer 29 is formed. The pile material is made of vegetable fiber, animal fiber, synthetic resin fiber, etc., for example, glass wool,
At least one of polyester, cotton, silk, cotton, nylon, feathers, rock wool, various metals and the like is used, and is used as a thread or as a thin and long stretched fiber. Of course, the pile layer 29 using an inorganic material such as rock wool functions as a fire-resistant sheet.

The pile has an arbitrary diameter and a length of 1-2.
5 mm, thickness 10-200 denier, spray rate 10-3
The pile layer 29 is formed at 00 g / m ² . The pile has the root embedded and fixed in an adhesive, and the tip extends in the direction of the plastic foam 10. The direction may be any as long as it protrudes from the adhesive. It is preferable to be substantially perpendicular to the plastic foam 10 in order to strongly bond it. The pile is made of, for example, nylon as the material, the length is about 8 mm, the thickness is about 60 denier, and the scatter rate is 70.
By setting the g / cm ^{2 to} about g / cm ^2, the adhesive strength between the pile layer 29 and the plastic foam 10 can be increased.

A large number of piles are provided on at least a part of the back surface side of the front surface material 1 or the back surface material 12 so that the pile layer 29 is formed.
Is formed, and penetrates into the liquid in the process of forming the plastic foam 10, and is hardened later, thereby greatly improving the bonding strength between the front surface material 1 or the back surface material 12 and the plastic foam 10. Further, it is intended to prevent swelling and warpage of the back material 12 due to internal gas and separation from the plastic foam 10 due to warpage.

The pile layer 29 is formed by implanting a large number of piles before the adhesive applied to at least a part of the back surface of the front material 1 or the back material 12 by a predetermined method does not dry. There are methods of mechanically directly planting a single unit or a plurality of units directly, and a method of spraying a pile on an adhesive.

The breathable fire-resistant sheet 30 is made of the non-combustible sheet 1
The material having the same fire resistance as that of the material 8 is made of inorganic fibers in a sheet shape. For example, rock wool felt, ceramic wool, glass wool, etc.
Alternatively, any material having air permeability may be used as long as it is an air permeable member that forms a very small gap between the plastic foam 10 and the space 2a. For example, cotton, hemp, wool, silk,
(Vegetable fiber, animal fiber, synthetic resin fiber, inorganic fiber, etc.). Of course, in this case, the breathable fireproof sheet 3
The fiber No. 0 has the same operation and effect as the pile layer 29.

9 (a) to 9 (g) show another embodiment of the refractory floor plate B. In particular, FIG. 9 (b) shows a packing material H or a non-combustible sheet 18 formed on the rising piece 16. Fireproof seam plate B with improved waterproofness, fire resistance, airtightness, etc., and FIGS. (D) to (g) show fireproof floors in which a non-combustible board 11 is formed between rising pieces 16 or on the back surface to enhance fire resistance. It is eye plate B.

FIGS. 10 (a) to 10 (h) show another embodiment of the mounting fixture E. In particular, FIGS. 10 (e) and 10 (f) show a case where a packing material H or a non-combustible sheet 18 is formed and waterproof. A fixture E having improved properties, fire resistance, airtightness, fire resistance, and the like.

FIGS. 11 (a) to 11 (h) to 13 (a) to
(C) shows another embodiment of the joint cover F. In particular, FIGS. 12 (c) to 12 (g) show a case where a packing material H or a non-combustible sheet 18 is formed, and waterproof, fireproof, airtight, This is a joint cover F with improved characteristics.

FIGS. 13 (a) to 13 (c) show that the joint cover F has a predetermined pitch (50
(About 0 mm).
It is formed to enhance workability and engagement force. 13B is an end view taken along the line aa in FIG. 13A, and FIG. 13C is an end view taken along the line bb in FIG. 13A. Needless to say, in this case, the fixture E uses a long one.

[0047]

As described above, according to the fire-resistant panel according to the present invention, (1) the structure in which both ends of the fire-resistant panel are fixed is excellent in workability. (2) Since the fixing portion of the fireproof panel is completely covered by the joint cover, the head of the fixing device is not exposed to the outside. (3) Since the deformation at the time of fixing the fireproof panel is covered by the joint cover, no skill is required for the construction. (4) It can pass the fireproof structure 1 hour test (JIS-A-1304) of the fireproof structure test by itself. (5) Compared with a ceramic or cement-based fire-resistant panel that can pass the fire-resistant structure 1-hour test (JIS-A-1304) of the fire-resistant structure test by itself, the workability is dramatically improved. (6) Workability is good because it can be stretched simultaneously in either direction. (7) A groove is formed in the fixing portion of the fireproof panel, and the fixing tool is formed into the groove so that the head of the fixing tool is buried. In addition, the fixture can be fixed after fixing the fireproof panel, and the fixture can be reliably installed without any problem in the workability regardless of whether the fixture is long or short. Further, since the surface material is formed in a keystone tone (wavy shape), (8) the rigidity of the fireproof panel is strengthened to improve the strength. (9) Deformation of the surface material due to excess gas components of the core material is prevented. (10) A deep (shaded) and heavy appearance is applied to the decorative surface, and a cheap image of metal is wiped off. (11) The formation of the waterproof piece and the waterproof tongue dramatically improves the waterproofness. (12) The waterproof piece and the waterproof tongue piece are fitted by the keystone-like decorative surface of the joint cover, and the waterproof property is further improved. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a fireproof panel according to the present invention.

FIG. 2 is a cross-sectional view showing a construction state of the fireproof panel according to the present invention.

FIG. 3 is an explanatory diagram showing an example of a fireproof seam board.

FIG. 4 is an explanatory view showing an example of a fixture.

FIG. 5 is an explanatory diagram illustrating an example of a joint cover.

FIG. 6 is a sectional view showing another embodiment of the fireproof panel according to the present invention.

FIG. 7 is a sectional view showing another embodiment of the fireproof panel according to the present invention.

FIG. 8 is a sectional view showing another embodiment of the fireproof panel according to the present invention.

FIG. 9 is an explanatory view showing another embodiment of the fireproof seam board.

FIG. 10 is an explanatory view showing another embodiment of the attachment.

FIG. 11 is an explanatory view showing another embodiment of the joint cover.

FIG. 12 is an explanatory view showing another embodiment of the joint cover.

FIG. 13 is an explanatory view showing another embodiment of the joint cover.

[Explanation of symbols]

α Body β Fixture β ₁ head A Fireproof panel B Fireproof panel C Fireproof joint D Cover material E Fixture F Joint cover G Joint H Packing material 1 Surface material 2 Keystone-like decorative surface 2a Space 3 Side wall 4 Fixed Part 5 Projecting piece 6 Groove 7 Waterproof piece 8 Waterproof tongue piece 8a Air gap 9 Core material 10 Plastic foam 11 Non-combustible board 12 Back material 13 Back face decorative face 14 Reinforcement piece 15 Fixed piece 15a Tongue piece 16 Rising piece 17 Stacking plate 18 Non-combustible Sheet 19 Fixing part 20 Stabilizing piece 21 Rising piece 22 Locking piece 23 Locking part 24 Decorative face part 24a Keystone-like decorative face 25 Side wall decorative face 26 Engaging piece 27 Engaging part 28 Air-permeable member 29 Pile layer 30 Air-permeable fireproof sheet

Claims (1)

[Claims] 1. A keystone-like decorative surface having irregularities formed thereon, a side wall having both ends of the keystone-like decorative surface bent inward, and a projecting piece having a tip end of the side wall protruding outward substantially in parallel with the keystone-like decorative surface. A metal surface material comprising a concave groove formed in the projecting piece, a waterproof piece having the tip of the groove bent outward, and a waterproof tongue piece having the tip of the waterproof piece folded inward; A plastic foam is formed between a back surface material consisting of a back surface decorative surface having a shape and reinforcing pieces having both ends of the back surface decorative surface bent inward, and a core material having a non-combustible board formed at both ends is sandwiched and formed. And fireproof panel.