JPH11350706A - Metal panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the deformation of the front and reverse face plates of a metal panel during a fire by providing a projection protruding to the front side or reverse side in the thickness direction at the tip of a male fitting portion in the direction of projection and providing a dent on the front side or reverse side in the thickness direction at the depth that fits into the tip of the male fitting portion. SOLUTION: A circular projection 15 projecting in the thickness direction is provided at the tip of the male fitting portion 6 of a metal panel 1a and a circular dent 16 sinking toward the front side at the depth of a female fitting portion 7, and the projection 15 and the dent 16 are engaged with each other. Even when a force pulling toward the opposite sides of the width direction acts on adjacent fitted metal panels 1a, 1a, the male fitting portion 6 and the female fitting portion 7 do not separate off easily. Therefore, a front material 2 and a reverse material 8 can be kept from getting deformed during a fire, the width of the metal panel 1a is kept from decreasing, and a clearance is prevented from occurring between the male fitting portion 6 and the female fitting portion 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal panel in which deformation in the width direction due to heat after construction is suppressed.

[0002]

2. Description of the Related Art Metal panels, both of which are made of metal, are excellent in strength and fire resistance, so that they can be used as exterior materials, interior materials, and partition materials for large buildings and structures. in use. FIG. 4 shows one of the conventional metal panels 1.
As an example, the surface material 2 is obtained by bending both side edges in the width direction of a flat metal plate in the same direction, and forming side walls 4 on both sides of the bottom wall 3.
5 has a gutter-like cross section, and the side wall 4 is provided with a male fitting portion 6 projecting outward in the width direction.
Is provided with a female fitting portion 7 which can be fitted to the male fitting portion 6 and is depressed inward in the width direction. Back material 8 is also front material 2
As in the above, the widthwise side edges of the flat metal strip are bent in the same direction, and the side walls 10 and 11 are provided on both sides of the bottom wall 9 in a gutter-like cross-section. The core member 12 is filled between the front surface member 2 and the back surface member 8 so as to face each other. Here, a plated steel plate, an aluminum plate, a stainless steel plate, a painted metal plate or an embossed plate thereof is used for the front surface material 2 and the back surface material 8, and a gypsum board, a calcium silicate plate, Inorganic materials such as rock wool and flame-retardant organic materials such as foamed phenol resin are used.

In the metal panel 1, the male fitting portion 6 of the surface material 2 has a flat front surface and a rear surface parallel to the surface of the bottom wall 3, and the female fitting portion 7 has a deep portion. Are flat surfaces parallel to the surface of the bottom wall 3. For example, in the case of horizontal stretching, the first first sheet is arranged such that the female fitting portion 7 is on the lower side and the male fitting portion 6 is on the upper side, The fitting portion 6 is nailed to the base material 13 with a nail 14,
For the second and subsequent sheets, the second female fitting part 7 is fitted to the first male fitting part 6 and the second male fitting part 6 is
Is attached with a nail 14. Note that, depending on the type of the metal panel, the male fitting portion 6 and the female fitting portion 7 are provided.
Is provided on the back surface material 8.

However, when a fire occurs in a building in which the metal panel 1 is constructed, the internal pressure of the panel and the surface material 2,
Since the thickness increases due to the expansion of the back material 8 and the width decreases, the male fitting portion 6 is formed in a portion where the nail 14 is not driven.
There is a defect that a gap is formed between the female and the female fitting portion 7, from which a flame or hot air enters the adjacent space and does not exhibit the fire protection function.

[0005]

SUMMARY OF THE INVENTION The present invention is to provide a metal panel in which such disadvantages are eliminated.

[0006]

According to the present invention, a front surface material and a back surface material of a metal plate having a gutter-shaped cross section are fitted so that the gutter side faces each other. On one side in the width direction, a male fitting portion protruding outward in the width direction is provided, and on the opposite side in the width direction, a female fitting recessed in the width direction in which the male fitting portion can be fitted. In the panel filled with the core material between the front surface material and the back surface material, a projection protruding to the front side or back side in the thickness direction is provided at the front end of the male fitting portion in the protruding direction. Further, the female fitting portion is characterized in that a recessed portion is provided on a front side or a back side in a thickness direction at a deep portion where the female fitting portion is fitted with a front end portion of the male fitting portion.

[0007]

When the metal panels of the present invention are fitted to each other in the conventional manner, a projection provided at the tip of the male fitting portion and a recess provided at the deep portion of the female fitting portion are formed. This engagement makes it difficult for the male and female fitting parts to come off when a pulling force acts on the fitted adjacent metal panels in mutually opposite width directions. For this reason, the deformation of the surface material and the back surface material is suppressed by the heat of the fire of the building, and the width of the metal panel is not easily reduced, and no gap is generated in the fitting portion.

The metal panel of the present invention is made of a heat-resistant material such as glass fiber in which a core material filled in a male fitting portion and a female fitting portion is impregnated with a curable inorganic material or a curable resin. Then, since it is difficult for both to be deformed by heat, it is possible to increase the strength of engagement between the distal end portion and the deep portion.

The core of the curable inorganic material may be filled with a mixture of an inorganic lightweight aggregate such as perlite or vermiculite and an inorganic binder such as gypsum or calcium silicate, if necessary. What is necessary is just to add a reinforcing fiber, a waterproofing agent, a fluidizing agent, and the like, mix the mixture with water, pour the mixture into a fitting section in which a weir for preventing outflow is formed in advance, and harden the mixture. Curing may be natural curing at room temperature or by heat-accelerated curing.

Glass fiber impregnated with curable resin
The filling of the core material is performed after applying a curable organic resin while simultaneously transporting a plurality of glass fibers and long fibers to form a bundle of each glass fiber. It can be continuously filled at the same time as molding and has excellent productivity. In addition, the glass fiber bonded with an organic resin can be easily deformed before the hardening of the curable organic resin. There is no gap between the surface material and the back surface material due to the adhesive action of the organic resin. In addition, you may use a short fiber for glass fiber. As the curable organic resin, it is desirable to use a flame-retardant resin such as a urethane resin, a phenol resin, a melamine resin, and an epoxy resin.

[0011]

Embodiment 1 FIG. 1 shows a metal panel 1a of the present invention. This metal panel 1a has a thickness at the tip of a male fitting portion 6 of the conventional metal panel 1 shown in FIG. A circular protruding portion 15 protruding toward the front side of the direction is provided, and a circular concave portion 16 recessed toward the front side is provided in the female fitting portion 7 at a deep portion so as to be able to engage with the protruding portion 15. The surface material 2 and the back surface material 8 are both made of a material with a thickness of 0.
5mm hot-dip galvanized steel sheet, panel thickness is 50mm
It is.

In the core member 12, a hardening inorganic material 17 is filled in the male fitting portion 6 and the female fitting portion 7 of the surface material 2, and aluminum hydroxide and boric acid are mixed in the center. The foamed phenol resin 18 is filled. Curable inorganic material 17
Is filled by pouring a composition consisting of 100 parts by weight of gypsum, 8.5 parts by weight of perlite, 3 parts by weight of vinyl acetate resin, and 150 parts by weight of water.

Embodiment 2 FIG. 2 shows another metal panel 1b of the present invention.
This metal panel 1b is a conventional metal panel 1 shown in FIG.
The tip of the male fitting part 6 is inclined to the front side so that the projection 15
The deep portion of the female fitting portion 7 is also inclined to the front side so that the depression portion 1
6. As in the case of the first embodiment, the core material is such that the male fitting portion 6 and the female fitting portion 7 are filled with a curable inorganic material 17, and the center portion is mixed with aluminum hydroxide and boric acid. Resin 18 was charged.

FIG. 3 shows a metal panel 1 according to the first and second embodiments.
a and 1b show the change of the back surface temperature when heated based on the standard heating curve and the required fire resistance time specified in JIS A 1304 “Fire resistance test method for building structure”. About 26 of the wood carbonization start temperature
It is kept below 0 ° C.

[0015]

As described above, the metal panel of the present invention is
Since the distal end portion of the male fitting portion and the deep portion of the female fitting portion are engaged with each other, the front surface material and the back surface material are not easily deformed at the time of fire, and no gap is formed in the fitting portion.

[Brief description of the drawings]

FIG. 1 is a sectional view of a metal panel according to the present invention.

FIG. 2 shows another metal panel cross-sectional view of the present invention.

FIG. 3 is a graph showing the fire resistance of a fitting portion of the metal panel of the present invention.

FIG. 4 is a sectional view of a conventional metal panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conventional metal panel 1a Metal panel of this invention 1b Metal panel of this invention 2 Surface material 3 Bottom wall 4 Side wall 5 Side wall 6 Male type fitting part 7 Female type fitting part 8 Back surface material 9 Bottom wall 10 Side wall 11 Side wall 12 Core material 13 Base material 14 Nail 15 Protrusion 16 Depression 17 Curable inorganic material 18 Foamed phenol resin

Continuation of the front page (72) Inventor Yasushi Nakata 7-1, Takatani Shinmachi, Ichikawa-shi, Chiba Pref. 7th Nisshin Steel Co., Ltd. Technical Research Laboratory Coating and Composite Materials Research Department

Claims (1)

[Claims] 1. A front surface material and a back surface material of a metal plate having a gutter-shaped cross section are fitted so that the trough-shaped side faces each other, and one of the front surface material and the back surface material has a widthwise direction on one side. A male fitting portion protruding outward is provided, and a female fitting portion recessed in the width direction capable of fitting with the male fitting portion is provided on the opposite side in the width direction. In a panel filled with a core material between a material and a back material, a projection protruding in a thickness direction front side or a back side is provided at a tip end in a protruding direction of the male type fitting portion, and the female type fitting portion is provided. A metal panel, wherein a recessed portion is provided on a front side or a back side in a thickness direction at a deep portion to be fitted with a front end portion of a male fitting portion.