JP2000328685A - Corner member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corner member capable of being placed to a butt section between two panel members such as an exterior wall material and an eaves soffit or the like, making ventilation of an attic space or the like and, at the same time, having excellent fire resistance. SOLUTION: A metal corner plate member 1 having an H-shaped cross section is placed to a butt section between one panel member (exterior wall material) A and the other panel member (eaves soffit material) B having a butt end opposed to one panel member A. A plurality of ventilating holes 23Bx are formed in a long side flange section 23B of a hollow section opposed to one panel member A in the corner member 1. For that purpose, the front side of the other panel member B is connected to the rear side thereof through the ventilating holes 23Bx of the corner member 1, and ventilation can be made between both front and rear sides. Since the butt section between one panel member A and the other panel member B is closed by the corner stop member 1, when a fire occurs, the spread of the fire from the front side of the other panel member B to the rear side can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parting member having excellent fire resistance, which allows ventilation between a living room and a back of a building divided by a ceiling of a building, a living room divided by a partition wall, and the like. It is about.

[0002]

2. Description of the Related Art In recent years, the quality requirements for apartment houses and single-family houses have increased, and high durability, fire resistance, high heat insulation, airtightness, and the like have been demanded. In this case, in order to prevent dew condensation and obtain high durability, it has been proposed to ventilate the inside of a wall or the back of a hut. For example, as described in Japanese Utility Model Laid-Open Publication No. 2-68923, there is known an apparatus in which a ventilation passage is formed between a support bracket attached to a ceiling material and a wall.

[0003]

However, in the above-described ventilation passage, when a fire occurs, the flame invades the inside of the wall or the back of the hut through the ventilation passage, so that a high fire resistance cannot be obtained. is there.

[0004] As described in Japanese Patent Application Laid-Open No. 7-42299, a non-combustible volume expansion material is provided on the outer surface of the support fitting attached to the ceiling material facing the ventilation passage, and when a fire occurs. It is also known that the non-combustible volume expander expands by heating and closes the ventilation passage, but the flame passes through the ventilation passage until the non-combustible volume expander is heated and closes the ventilation passage. It has penetrated into the back of a hut, and it is difficult to secure high fire resistance.

[0005] The present invention has been made in view of such problems, and provides a parting material having both ventilation and excellent fire resistance.

[0006]

Means for Solving the Problems Claim 1 of the present invention
The described invention is a parting member made of a metal plate disposed at a butt portion between one panel member and another panel member having a lip facing the one panel member, wherein the parting member is a web part. And a pair of upper and lower flange portions, and is formed in an H-shaped or E-shaped cross section, an edge portion of another panel material is inserted into one hollow portion of the parting member, and A plurality of ventilation holes or notches are formed in a flange portion of the other hollow portion facing the panel material, and the front side and the back side of the other panel material communicate with each other.

According to the present invention, the front side and the back side of the other panel material are communicated with each other by the ventilation port or notch of the parting member provided at the abutting portion of the one panel material and the other panel material. ing. As a result, it is possible to ventilate the front side and the back side of another panel material. Also, since the butted portion of one panel material and another panel material is closed by a parting member, the edge of the other panel material can be beautifully finished, and at the time of a fire,
The flame does not penetrate from the front side to the back side of other panel materials, and has excellent fire resistance.

[0008] The metal plate used in the first aspect of the present invention is a nonflammable metal material, for example, an aluminum plate, a galvanized iron plate, a zinc-aluminum alloy plated steel plate, a coated steel plate,
It is preferably formed of a PVC steel plate, a stainless steel plate, or the like.

In this case, the parting member may be formed by bending a metal plate in order to form an H-shaped or E-shaped cross section, or by bending a metal plate into a U-shaped cross section to join the web portions together. By doing so, it may be formed in an H-shaped or E-shaped cross section.

[0010] When the parting member is formed in an E-shaped cross section, one of the flange portions is longer than the other flange portion.
Since a gap is formed between the tip of the short side flange and one panel material, there is an advantage that it is not necessary to form a ventilation port or a notch in the short side flange.

Here, as a butt portion between one panel material provided with the parting member and another panel material, a butt portion between an outer wall material and an eave ceiling material on the outdoor side, and an outer wall material on the indoor side. Butt portion between interior wall material and interior wall material, butt portion between outer wall material and ceiling material, butt portion between outer wall material and steel frame fireproof covering material, butt portion between outer wall material and boundary wall material, butting between boundary wall material and interior base material And the like.

The parting member can be fixed to the opening of another panel material by a commonly used fixing method such as a nail or a screw. However, one of the hollow portions of the parting member is provided with an edge portion of another panel material. May be held to hold the parting member.

Further, the ventilation port or the cutout of the parting member may be covered with a mesh wire net or a net so as to prevent insects from entering as long as the ventilation performance is not impaired.

Further, when the non-combustible cushioning material is provided on the surface of the web portion facing the opening of the other panel material of the parting member, even if the construction accuracy is poor, the construction can be performed without gaps. And fire resistance reliability can be further obtained.

As the non-combustible cushioning material, rock wool, glass wool, heat-resistant glass wool, ceramic wool or the like can be used. In particular, inexpensive rock wool, which has excellent heat insulating properties at high temperatures, can be suitably used. The thickness of the non-combustible cushioning material is preferably 1 to 20 mm.

Further, the invention according to claim 2 is a parting member formed of a metal plate disposed at a butt portion of one panel member and another panel member having a lip facing the one panel member. The parting member has a web portion and a pair of upper and lower flange portions, and is formed in an H-shaped or E-shaped cross section,
An edge portion of another panel material is fitted into one hollow portion of the parting member, and a plurality of ventilation holes or notches are formed in a flange portion of the other hollow portion facing one panel member of the parting member. The front side and the back side of the other panel material are formed to communicate with each other, and further, a thermoplastic resin and / or a rubber substance, a phosphorus compound, and an inorganic filler are provided on the front side of the web portion facing one panel material of the parting member. And a heat-expandable sheet that is expanded by heating to form a fire-resistant heat-insulating layer is attached thereto.

Further, the invention according to claim 3 is a parting member formed of a metal plate disposed at a butt portion of one panel member and another panel member having a lip facing the one panel member. The parting member has a web portion and a pair of upper and lower flange portions, and is formed in an H-shaped or E-shaped cross section,
An edge portion of another panel material is inserted into one hollow portion of the parting member, and a plurality of ventilation openings or notches are formed in a flange portion of the other hollow portion facing one panel member of the parting member. A resin composition containing an epoxy resin, a phosphorus compound, and an inorganic filler on the front surface side of the web portion which is formed and communicates with the front side and the back side of another panel material, and further, on the front side of the web portion facing one panel material of the parting member And a heat-expandable sheet that is expanded by heating to form a refractory heat-insulating layer is attached.

According to these inventions, the front side and the back side of the other panel material communicate with each other by the ventilation port or notch of the parting member provided at the abutting portion between the one panel material and the other panel material. Have been. As a result, it is possible to ventilate the front side and the back side of another panel material. In addition, since the abutting portion between one panel material and another panel material is closed by a parting member, the edge of the other panel material can be beautifully finished, and when a fire occurs, a flame is generated. There is no invasion from the front side to the back side of other panel materials. On the other hand, when a fire occurs, when the parting member is heated by the heat of the flame, the thermally expandable sheet expands and fills the other hollow part of the refractory heat insulating layer with the parting member. For this reason, it is possible to surely shut off the flame that is going to pass through the abutting portion between one panel material and another panel material, and it is possible to further improve the fire resistance.

As the metal plate used in these inventions, 9
A material which is melted by heat of 00 degrees or more, for example, an aluminum plate is not preferable, and a metal plate having high fire resistance such as a steel plate or a stainless steel plate is preferable. Further, a plurality of one or more metal plates may be stacked.

The thickness of the metal plate is preferably 0.1 to 1 mm. When the thickness is less than 0.1 mm, it is difficult to function as a flameproof material and the handleability is poor. On the other hand, if it exceeds 1 mm, it is heavy and the handleability deteriorates.

In this case, the parting member may be formed by bending a metal plate in order to form an H-shaped or E-shaped cross section, or by bending a metal plate into a U-shaped cross section to join the web portions together. By doing so, it may be formed in an H-shaped or E-shaped cross section.

When the parting member is formed to have an E-shaped cross section in which one flange portion is longer than the other flange portion,
Since a gap is formed between the tip of the short side flange and one panel material, there is an advantage that it is not necessary to form a ventilation port or a notch in the short side flange.

Here, the abutting portion between the one panel material on which the parting member is disposed and the other panel material is abutting portion between the outer wall material and the eave ceiling material on the outdoor side, and the outer wall material on the indoor side. Butt portion between interior wall material and interior wall material, butt portion between outer wall material and ceiling material, butt portion between outer wall material and steel frame fireproof covering material, butt portion between outer wall material and boundary wall material, butting between boundary wall material and interior base material And the like.

The parting member can be fixed to the edge of another panel material by a commonly used fixing method such as a nail or a screw. May be held to hold the parting member.

Further, the ventilation opening or the cutout of the parting member may be covered with a mesh wire net or a net so as to prevent insects from entering as long as the ventilation performance is not impaired.

Further, if a non-combustible cushioning material is provided on the surface of the web portion facing the opening of the other panel material of the parting member, even if the construction accuracy is poor, the construction can be performed without gaps. And fire resistance reliability can be further obtained.

As the non-combustible cushioning material, rock wool, glass wool, heat-resistant glass wool, ceramic wool or the like can be used. In particular, inexpensive rock wool, which has excellent heat insulating properties at high temperatures, can be suitably used. The thickness of the non-combustible cushioning material is preferably 1 to 20 mm.

The thermoplastic resin and / or rubber substance used in the second aspect of the present invention is not particularly limited. Examples thereof include polyolefin resins such as polypropylene resins and polyethylene resins, polypentene resins, polystyrene resins, and acrylonitrile. -Butadiene-styrene resin, polycarbonate resin, polyphenylene ether resin, acrylic resin, polyamide resin, polyvinyl chloride resin, phenol resin, polyurethane resin, polybutene, polychloroprene, polychlorobutyl, polybutadiene, poly Isobutylene, nitrile rubber and the like.

Halogenated resins such as polychloroprene and polychlorobutyl have high flame retardancy per se, and are crosslinked by a dehalogenation reaction by heat.
This is preferable in that the strength of the residue after heating is improved.

The thermoplastic resins and / or rubber materials exemplified above are very flexible and have rubber-like properties, so that they can be highly filled with an inorganic filler and the resulting resin composition Becomes flexible and flexible. In order to obtain a more flexible and flexible resin composition, a non-vulcanized rubber or a polyethylene resin is preferably used.

The above-mentioned thermoplastic oils and / or rubber substances may be used alone or in combination of two or more. A blend of two or more resins may be used as the base resin in order to adjust the melt viscosity, flexibility, tackiness, etc. of the resin.

The thermoplastic resin and / or rubber substance may be further crosslinked or modified within a range that does not impair the fire resistance of the thermally expandable sheet. When such cross-linking or modification is performed, other components such as a phosphorus compound or an inorganic filler described below may be added to the thermoplastic resin and / or rubber material that has been cross-linked and modified in advance. Cross-linking or modification may be performed at the same time as or after blending. The crosslinking method is not particularly limited, and examples thereof include a crosslinking method generally used for a thermoplastic resin or a rubber substance, for example, a method using various crosslinking agents, peroxides, and the like, and a crosslinking method using electron beam or ultraviolet irradiation.

The epoxy resin used in the third aspect of the present invention is not particularly limited, and can be basically obtained by reacting a monomer having an epoxy group with a curing agent.

The monomers having an epoxy group include:
For example, monomers such as a bifunctional glycidyl ether type, a glycidyl ester type, and a polyfunctional glycidyl ether type are exemplified.

Examples of the above-mentioned bifunctional glycidyl ether type monomer include polyethylene glycol type, polypropylene glycol type, neopentyl glycol type, 1,6-hexanediol type, trimethylolpropane type, propylene oxide-bisphenol A type,
Monomers such as hydrogenated bisphenol A type are exemplified.

Examples of the glycidyl ester type monomer include monomers such as hexahydrophthalic anhydride type, tetrahydrophthalic anhydride type, dimer acid type, and p-oxybenzoic acid type.

Examples of the polyfunctional glycidyl ether type monomer include monomers such as phenol novolak type, orthocresol novolak type, DPP novolak type, and dicyclopentadiene phenol type.

These monomers having an epoxy group may be used alone or in combination of two or more.

As the curing agent, a polyaddition type or a catalyst type is used. Examples of the polyaddition type curing agent include polyamine, acid anhydride, polyphenol, and polymercaptan. Examples of the catalyst-type curing agent include tertiary amines, imidazoles, and Lewis acid complexes.

The method for curing the epoxy resin is not particularly limited, and can be performed by a known method.

The phosphorus compound used in the invention of claim 2 or 3 is not particularly restricted but includes, for example, red phosphorus; triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xylene Various phosphates such as nyldiphenyl phosphate; metal phosphates such as sodium phosphate, potassium phosphate and magnesium phosphate; ammonium polyphosphates: general formula R3 (R2) PO (OR
And the like. In the formula, R1 and R3 represent hydrogen, a straight-chain or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, Represents 16 aryloxy groups.

Among these, from the viewpoint of fire resistance, red phosphorus, ammonium polyphosphates and the compounds represented by the above general formulas are preferable, and ammonium polyphosphates are more preferable in terms of performance, safety, cost and the like.

The flame retardant effect is improved by adding a small amount of the red phosphorus. Commercially available red phosphorus can be used as the red phosphorus, but those obtained by coating the surface of red phosphorus particles with a resin are preferably used from the viewpoints of moisture resistance and safety such as not spontaneously igniting during kneading.

The ammonium polyphosphates are not particularly restricted but include, for example, ammonium polyphosphate and melamine-modified ammonium polyphosphate.
Ammonium polyphosphate is preferably used in terms of handleability and the like. Commercially available products include, for example, "AP422" and "AP462" manufactured by Clariant, "Sumisafe P" manufactured by Sumitomo Chemical Co., Ltd., "TERAGEU C60" and "TERAGEU C80" manufactured by Chisso.

The compound represented by the above general formula is not particularly restricted but includes, for example, methylphosphonic acid, dimethylmethylphosphonate, diethylmethylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid,
Methylpropylphosphonic acid, t-butylphosphonic acid,
2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphinic acid, phenylphosphinic acid, diethyl Examples thereof include phenylphosphinic acid, diphenylphosphinic acid, and bis (4-methoxyphenyl) phosphinic acid. Among them, t-butylphosphonic acid is
Although expensive, it is preferable in terms of high flame retardancy. The phosphorus compounds may be used alone or in combination of two or more.

The inorganic filler used in the invention of claim 2 or 3 is not particularly limited, and examples thereof include alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, Metal oxides such as ferrites; hydrated inorganic substances such as calcium hydroxide, magnesium hydroxide, aluminum hydroxide, and hydrotalcite; metals such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, and barium carbonate Carbonate; calcium sulfate,
Gypsum fiber, calcium salts such as calcium silicate; silica, diatomaceous earth, dawsonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, imogolite, sericite, glass fiber, glass beads, silica-based parn, Aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, aluminum porate, molybdenum sulfide, silicon carbide , Stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, dewatered sludge and the like. Among them, hydrous inorganic substances and metal carbonates are preferred.

Water-containing inorganic substances such as magnesium hydroxide and aluminum hydroxide endothermic due to water generated by the dehydration reaction during heating, and the temperature rise is reduced to obtain high heat resistance. It is particularly preferable that the material remains and works as an aggregate, thereby improving the strength of the residue. Magnesium hydroxide and aluminum hydroxide have different temperature ranges where the dehydration effect is exhibited,
When used together, the temperature range in which the dehydration effect is exhibited is widened, and a more effective temperature rise suppression effect is obtained.

Metal carbonates such as calcium carbonate and zinc carbonate are considered to promote expansion by the reaction with the above-mentioned phosphorus compound. Particularly, when ammonium polyphosphate is used as the phosphorus compound, a high expansion effect can be obtained. . In addition, it acts as an effective aggregate and forms a residue having high shape retention after burning.

Among the above metal carbonates, further, alkali metal carbonates such as sodium carbonate; alkaline earth metal carbonates such as magnesium carbonate, calcium carbonate and strontium carbonate; and group IIb of the periodic table such as zinc carbonate. Metal carbonates are preferred.

In general, since the inorganic filler acts as an aggregate, it is considered that the inorganic filler contributes to an improvement in residue strength and an increase in heat capacity.

The inorganic fillers may be used alone or in combination of two or more. As the particle size of the inorganic filler,
Those having a size of 0.5 to 200 μm can be used, and more preferably about 1 to 50 μm. In addition, it is more preferable to use a combination of an inorganic filler having a large particle size and an inorganic filler having a small particle size. By using the inorganic filler in combination, high packing is performed while maintaining the mechanical performance of the thermally expandable sheet. It becomes possible.

The thickness of the heat-expandable sheet is from 0.2 to 5
mm is preferred. If the thickness is less than 0.2 mm, sufficient heat insulating properties will not be exhibited even if expanded, and if it exceeds 5 mm, it is necessary to increase the cross-sectional area of the ventilation passage, and the handleability is reduced.

As a method of laminating the heat-expandable sheet on the metal plate, a known method such as a laminator or a press can be used.

According to the second or third aspect of the present invention, at least 30% or more of the opening is formed in the web portion of the parting member, and the opening is formed on the front side of the web portion facing one panel member of the parting member. If the heat-expandable sheet is stuck so as to close the opening, in the event of a fire, the heat-expandable sheet expands due to the heat of the flame and fills the other hollow portion of the fire-resistant heat-insulating layer with the parting member. At the same time, the refractory heat insulating layer covers the front and back surfaces of the edge of the other panel material through the opening. Therefore, the butted portion between the surface of one panel material and another panel material can be reliably closed.

[0055] In the second, third or fourth aspect of the present invention, after the forming process of the parting member, thermal expansion is performed on the surface side of the web part through the other hollow part facing one panel member of the parting member. When the conductive sheet can be attached,
At the time of construction, the thermally expandable sheet can be attached to the parting member, which facilitates construction.

According to the second, third, fourth or fifth aspect of the present invention, the heat-expandable sheet is 50 KW /
The change in thickness when heated with a calorific value of m ² for 30 minutes is 1.
When the ratio is 1 to 30 times, the other hollow portion facing the one panel material of the parting member can be sufficiently filled with the fire-resistant heat-insulating layer. If the change in thickness is less than 1.1, the gap is too large, so that it is impossible to form a fire-resistant heat-insulating layer as a layer due to collapse during expansion. And the refractory heat-insulating layer may become brittle and collapse.

Claims 2, 3, 4, and 5
Alternatively, in the invention according to claim 6, when the heat-expandable sheet contains a heat-expandable inorganic substance, the heat-expandable inorganic substance expands by heating to form a heat insulating layer, and acts more effectively to prevent heat transfer. .

Examples of the heat-expandable inorganic material include neutralized heat-expandable graphite and vermiculite.

[0059]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows Embodiment 1 of a parting member 1 of the present invention.

The parting member 1 of the first embodiment has a thickness of 0.
Unit member 2 formed by bending a 3 mm zinc iron plate into a substantially U-shaped cross section
A and 2B and a connecting member 3 for connecting these unit members 2A and 2B are formed in an E-shaped cross section. That is, the web portions 21A and 21B, the short side flange portions 22A and 22B, and the long side flange portions 23A and 23B
The unit members 2A and 2B having a substantially U-shaped cross section are joined together with their web portions 21A and 21B, and the connecting member 3 is wound around the short side flange portions 22A and 22B to form the unit members 2A and 2B. The parting member 1 is formed by being integrally connected. The long side flange portion 23 of the unit member 2B facing the one panel member among the unit members 2A and 2B constituting the parting member 1
A circular ventilation opening 23B at a set interval in the longitudinal direction at B
x is formed.

As shown in FIG.
As shown in the figure, assuming an outer wall material A and an eaves ceiling material B whose cut ends abut against the outer wall material A, a 25 mm thick calcium silicate plate is used as one panel material corresponding to the outer wall material A. Other panel material corresponding to material B, thickness 1
Using a 5 mm reinforced gypsum board, the opening of the reinforced gypsum board is brought into contact with the web portion 21A through the hollow portion 2a of one of the unit members 2A constituting the parting member 1, and the parting member 1 is nailed and fixed to the reinforced gypsum board. did. In this case, a gap is formed between the tip of the short side flange portion 22B of the other unit member 2B constituting the parting member 1 and the calcium silicate plate. (Embodiment 2) FIG. 3 shows Embodiment 2 of the parting member 1 of the present invention.

The parting member 1 of the second embodiment has a thickness of 0.
Parting-off member 1 of Example 1 previously showing a 4 mm zinc iron plate
And the web portion 2 formed through the hollow portion 2b of the other unit member 2B constituting the parting member 1
The heat-expandable sheet S is adhered to the surface side of 1B. This heat-expandable sheet S is formed by forming a composition shown in Table 1 below with a composition A shown in Table 1 to a thickness of 1 mm. Third Embodiment FIG. 4 shows a third embodiment of the parting member 1 of the present invention.

The parting member 1 of Example 3 is the same as Example 2 except that the composition of the thermally expandable sheet S was changed to the composition shown in Table 1 below and the composition B shown in Table 1.

However, the web portions 21A, 21B of the unit members 2A, 2B constituting the parting-off member 1 are provided with elliptical openings 21Ax, 2 at intervals in the longitudinal direction.
1Bx was formed in the up-down direction of the parting member 1 in the longitudinal direction. (Embodiment 4) The parting member 1 of this embodiment 4 has a thickness of 0.
Parting-off member 1 of Example 2 previously showing a 5 mm zinc iron plate
And the web portion 2 formed through the hollow portion 2b of the other unit member 2B constituting the parting member 1
The heat-expandable sheet S is adhered to the surface side of 1B. This heat-expandable sheet S is formed by forming a composition shown in Table 1 below with a composition C shown in Table 1 to a thickness of 2 mm.

[0065]

[Table 1]

(Comparative Example) FIG. 5 shows a usage state of the comparative example.

In FIG. 5, similarly to the above-described embodiment, a 25 mm-thick calcium silicate plate is used as one panel material corresponding to the outer wall material A, and another panel material corresponding to the eave ceiling material B is used. A reinforced gypsum board with a thickness of 15 mm is used as a panel material.

This comparative example is made of a commercially available aluminum cutout with ventilation holes (a ceiling cutout for aluminum ventilation manufactured by Soken Co., Ltd.).
Thickness 1 mm).

For these Examples 1 to 5 and Comparative Example, a refractory heating test was performed in accordance with JIS A 1304, and whether or not the flame was cut off was visually observed.

As a result, in Example 1, no flame penetrated to the back side even after heating for 30 minutes. Also, in Examples 2 to 4, no penetration of the flame was observed even after 45 minutes or more.

In the comparative example, the flame penetrated the back surface from the ventilation opening.

[0072]

As described above, according to the first aspect of the present invention, another panel is provided by a ventilation port or cutout of a parting member provided at a butt portion between one panel material and another panel material. The front side and the back side of the material communicate with each other. As a result, it is possible to ventilate the front side and the back side of another panel material. In addition, since the abutting portion between one panel material and another panel material is closed by a parting member, the edge of the other panel material can be beautifully finished, and when a fire occurs, a flame is generated. It does not penetrate from the front side to the back side of other panel materials and has excellent fire resistance.

The invention according to claim 2 and claim 3
According to the described invention, the front side and the back side of the other panel material are communicated with each other by the ventilation port or the notch of the parting member arranged at the butt portion between the one panel material and the other panel material. . As a result, it is possible to ventilate the front side and the back side of another panel material. In addition, since the abutting portion between one panel material and another panel material is closed by a parting member, the edge of the other panel material can be beautifully finished, and when a fire occurs, a flame is generated. There is no invasion from the front side to the back side of other panel materials. On the other hand, when a fire occurs, when the parting member is heated by the heat of the flame, the heat-expandable sheet expands and fills the other hollow part of the refractory heat insulating layer with the parting member. For this reason,
It is possible to reliably shut off the flame that is going to pass through the abutting portion between one panel material and another panel material, and to have further excellent fire resistance.

[Brief description of the drawings]

FIG. 1 is a perspective view of a parting member according to a first embodiment of the present invention with a part thereof omitted.

FIG. 2 is an explanatory view showing a state where the parting member according to the first embodiment of the present invention is disposed at a butt portion between an outer wall material and an eave ceiling material.

FIG. 3 is a perspective view illustrating a parting member according to a second embodiment of the present invention with a part thereof omitted;

FIG. 4 is a perspective view of a parting member according to a third embodiment of the present invention with a part thereof omitted;

FIG. 5 is a perspective view showing a state in which a comparative example is disposed at a part where an outer wall material and an eave ceiling material abut against each other, with a part thereof being omitted.

[Explanation of symbols]

 1 Parting member 2A, 2B Unit member 2a, 2b Hollow part 21A, 21B Web part 21Ax, 21Bx Opening part 22A, 22B Short side flange part 23A, 23B Long side flange part 23Bx Ventilation port 3 Connecting member A Outer wall material (one panel) Material) B Eave ceiling material (other panel materials) S Fire resistant expansion sheet

Claims (7)

[Claims] 1. A parting member made of a metal plate disposed at a butt portion between one panel member and another panel member having an opening facing the one panel member, wherein the parting member is a web portion. And a pair of upper and lower flange portions, and is formed in an H-shaped or E-shaped cross section, an edge portion of another panel material is inserted into one hollow portion of the parting member, and A parting member, wherein a plurality of ventilation openings or cutouts are formed in a flange portion of the other hollow portion facing the panel material, and the front side and the back side of the other panel material communicate with each other. 2. A parting member made of a metal plate disposed at a butt portion between one panel member and another panel member having an opening facing the one panel member, wherein the parting member is a web part. And a pair of upper and lower flange portions, and is formed in an H-shaped or E-shaped cross section, an edge portion of another panel material is inserted into one hollow portion of the parting member, and A plurality of ventilation openings or notches are formed in the flange portion of the other hollow portion facing the panel material so that the front side and the back side of the other panel material communicate with each other, and further, one of the parting members faces one panel material. A heat-expandable sheet, which is made of a resin composition containing a thermoplastic resin and / or a rubber substance, a phosphorus compound and an inorganic filler and expands by heating to form a fire-resistant heat-insulating layer, is adhered to the surface side of the web portion. Is characterized by being Parting member. 3. A parting member made of a metal plate disposed at a butt portion between one panel member and another panel member having an opening facing the one panel member, wherein the parting member is a web part. And a pair of upper and lower flange portions, and is formed in an H-shaped or E-shaped cross section, an edge portion of another panel material is inserted into one hollow portion of the parting member, and A plurality of ventilation openings or notches are formed in the flange portion of the other hollow portion facing the panel material so that the front side and the back side of the other panel material communicate with each other, and further, one of the parting members faces one panel material. A heat-expandable sheet, which is made of a resin composition containing an epoxy resin, a phosphorus compound and an inorganic filler, and expands by heating to form a fire-resistant heat-insulating layer, is attached to the surface side of the web portion. Parting member. 4. An opening of at least 30% or more is formed in the web portion of the parting member, and heat is applied to close the opening on the front side of the web portion facing one panel material of the parting member. The parting member according to claim 2 or 3, wherein an expandable sheet is attached. 5. A heat-expandable sheet can be stuck to the surface side of the web portion through the other hollow portion facing one panel material after the forming process of the parting member. The parting member according to claim 2, 3, or 4. 6. The heat-expandable sheet has a thickness change of 1.1 to 3 when heated with a heat of 50 KW / m ² for 30 minutes.
6. The parting member according to claim 2, wherein the magnification is zero. 7. The parting member according to claim 2, wherein said heat-expandable sheet contains a heat-expandable inorganic substance.