JP5978118B2 - Fireproof compartment penetration structure with gap shielding filler and gap shielding filler - Google Patents

Description

  The present invention relates to a fire prevention compartment penetration structure provided with a gap shielding filler.

Conventionally, in a building or the like, when a long body such as a cable or a pipe is disposed in a partition part that defines a fire prevention compartment such as a building wall, a partition wall, a floor, or a ceiling, a through hole is provided in the partition part. It is necessary to provide it. When the elongated body is inserted through the through hole, a gap is generated between the elongated body and the through hole. For this reason, when a fire occurs in one fire prevention section defined by the partition portion, smoke is transmitted to the other fire prevention section of the partition portion through the gap between the elongated body and the through hole. There is a problem that fire spread occurs.
In order to cope with this problem, a fire-resistant compartment penetration structure using a fire-resistant filler formed by laminating a soft thermal expansion fire-resistant sheet on a flexible ceramic fiber blanket and wrapping this laminate with a synthetic resin film ( Patent Document 1) has been proposed.

Usually, since the cross-sectional shape in the direction perpendicular to the longitudinal direction of the plurality of long bodies is complicated, a gap is likely to occur between the long body and the filler for fire prevention treatment.
In the case of a fire compartment penetrating portion structure using the filler for fire prevention treatment, the filler for fire prevention treatment is flexible, so that it is in close contact with, for example, a long body that is inserted through a through hole provided in the partition portion. It is said that the fireproofing filler can be installed.

JP 2008-215625 A

FIG. 16: is a schematic cross section for demonstrating the problem of the fire prevention division penetration part structure which this inventor examined.
FIG. 16 shows the application of the fireproofing filling described in the selection document 1 described above to the fireproof section through structure 500.
As shown in FIG. 16, regardless of whether the partition that defines the fire prevention compartment is a vertical compartment such as a wall 30 or a horizontal compartment such as a floor, the long passage through the wall 30 is inserted. There may be a case where a gap 11 is formed between the body 20 and the fireproof filler 300 installed in the through hole 10 of the wall 30.
If such a gap 11 exists, smoke or the like generated by a fire or the like in one fire prevention section may diffuse through the gap 11. For this reason, when the said clearance gap 11 exists, the said fire prevention division penetration part structure 500 may receive evaluation that it cannot be said that it is completed.
The gap 11 has a variety of shapes depending on the cross-sectional shape, position, number, etc. of the elongated body 20 used in the fireproof compartment penetration structure 500. Therefore, there is a problem that it is not easy to shield the gap 11 in accordance with the shape of the gap 11 when the filler is inserted into the gap 11.

  An object of the present invention is to provide a fire prevention compartment penetration portion structure including a gap shielding filler that can be easily constructed and can easily shield a gap between through holes.

As a result of intensive studies by the inventor to solve the above problems, a long body is inserted through a through hole provided in a fire prevention compartment, and a plurality of thermal expansion properties are provided between the inside of the through hole and the long body. Fireproof blocks are installed,
A gap shielding filler is inserted into the gap inside the through hole,
The gap shielding filler comprises a filler main body, and a flexible base material at at least one end of the filler main body,
It has been found that the fireproof compartment penetration structure in which the flexible base material covers the gap inside the through hole is suitable for the purpose of the present invention, and the present invention has been completed.

That is, the present invention
[1] A long body is inserted through the through-hole provided in the fire prevention compartment, and a plurality of thermally expandable fireproof blocks are installed between the inside of the through-hole and the long body,
A gap shielding filler is inserted into the gap inside the through hole,
The gap shielding filler comprises a filler main body, and a flexible base material at at least one end of the filler main body,
The flexible base material covers a gap inside the through-hole, and provides a fireproof compartment penetration structure.

One of the present invention is
[2] The filler body of the gap shielding filler comprises at least one selected from the group consisting of a combustible material, a non-combustible material, and a thermally expandable refractory material,
The flexible base material of the said gap shielding filler provides the fireproof division penetration part structure as described in said [1] which is at least one of cloth and a synthetic resin film.

One of the present invention is
[3] The fireproof compartment penetrating portion according to [1] or [2], wherein the flexible base material of the gap shielding filler is at least one selected from the group consisting of a polygon, a circle, and an ellipse. Provide structure.

One of the present invention is
[4] The above-mentioned [1] to [3], wherein the thermally expandable fireproof block is formed by packaging at least one selected from the group consisting of a thermally expandable fireproof sheet, a noncombustible material and a combustible material with a packaging material. The fireproof compartment penetration structure according to any one of the above is provided.

One of the present invention is
[5] The gap shielding filler comprises a flexible base material at least at one end of the thermally expandable fireproof block,
The fireproof compartment penetration part structure according to any one of the above [1] to [4], wherein the flexible base material covers a gap inside the through hole in a plane direction parallel to the surface of the fireproof compartment. Is.

One of the present invention is
[6] The gap shielding filler for use in the fireproof compartment penetration structure according to any one of [1] to [5] is provided.

  The fire prevention compartment penetration structure according to the present invention can easily shield the gap of the through hole by using the gap shielding filler. Further, by installing the gap shielding filler inside the through-hole, the fire-proof compartment penetration structure according to the present invention can be obtained. Therefore, the fire-protection compartment penetration structure according to the present invention can be easily constructed.

FIG. 1 is a schematic cross-sectional view of an essential part for explaining the relationship between a long body used in the present invention and a through-hole formed in a wall as a fire prevention compartment. FIG. 2 is a schematic cross-sectional view of an essential part for explaining a structure in which a thermally expandable fireproof block used in the present invention is installed inside a through hole formed in a wall. FIG. 3 is a schematic view illustrating a structure obtained by observing the fire prevention compartment penetration structure according to the first embodiment from the direction perpendicular to the wall surface. FIG. 4 is a schematic perspective view illustrating a specific example of the gap shielding filler used in the present invention. FIG. 5 is a schematic view of the gap shielding filler for explaining the relationship between the filler main body of the gap shielding filler used in the present invention and the flexible substrate. FIG. 6 is a schematic perspective view for explaining a thermally expandable fireproof block used in the present invention. FIG. 7 is a schematic perspective view for explaining a heat-expandable fireproof block used for the fireproof compartment penetration structure 2 according to the first embodiment. FIG. 8 shows a cross section obtained by cutting a wall vertically, and is a schematic cross-sectional view of the fire prevention compartment penetration structure 2 according to the first embodiment. FIG. 9 is a schematic perspective view for explaining the gap shielding filler used in the second embodiment. FIG. 10 is a schematic cross-sectional view of the fireproof compartment penetration structure according to the second embodiment. FIG. 11 is a schematic cross-sectional view of the fireproof compartment penetration structure according to the second embodiment. FIG. 12 is a schematic perspective view for explaining the gap shielding filler used in the third embodiment. FIG. 13 is a schematic perspective view for explaining the gap shielding filler used in the fourth embodiment. FIG. 14 is a schematic perspective view for explaining the gap shielding filler used in the fifth embodiment. FIG. 15 is a schematic perspective view for explaining the gap shielding filler used in the sixth embodiment. FIG. 16: is a schematic cross section for demonstrating the problem of the fire prevention division penetration part structure which this inventor examined.

A first embodiment according to the present invention will be described below with reference to the drawings.
First of all, a long body used in the present invention, a vertical partition such as a wall that is a partition defining a fire prevention section provided in a building, a horizontal partition such as a floor and a ceiling, and a penetration formed in the hollow wall The relationship with the holes will be described.
FIG. 1 is a schematic cross-sectional view of an essential part for explaining the relationship between a long body used in the present invention and a through-hole formed in a wall as an image-protecting section.

Examples of the wall 30 illustrated in FIG. 1 include concrete, a noncombustible board, and a steel plate.
Examples of the non-combustible board include inorganic fiber boards formed from inorganic fibers, heat-resistant panels, and the like.

  As the inorganic fiber board, for example, a glass wool, rock wool, ceramic wool, gypsum fiber, carbon fiber, stainless steel fiber, slag fiber, silica alumina fiber, alumina fiber, silica fiber, zirconia fiber and other inorganic fibers as a sintering agent, Examples include boards obtained by molding using thermoplastic resins, adhesives, and the like.

Examples of the heat resistant panel include a cement panel and an inorganic ceramic panel.
Examples of the cement-based panel include hard wood piece cement boards, inorganic fiber-containing slate boards, lightweight cellular concrete boards, mortar boards, and precast concrete boards.
Examples of the inorganic ceramic panel include a gypsum board, a calcium silicate board, a calcium carbonate board, a mineral wool board, and a ceramic board.

  Here, as the gypsum board, specifically, a lightweight material such as saw dust or pearlite is mixed into calcined gypsum, and cardboard is pasted on both sides and molded. ), Decorative gypsum board (JIS A6911 compliant: GB-D), waterproof gypsum board (JIS A6912 compliant: GB-S), reinforced gypsum board (JIS A6913 compliant: GB-F), sound-absorbing gypsum board (JIS A6301 compliant: GB) -P) and the like.

  The material used for the said wall can use 1 type, or 2 or more types.

  Moreover, there is no limitation in the wall 30 used for this invention, What is normally used for a wall etc. can be selected suitably, and can be used.

In FIG. 1, the wall 30 is formed by using two plaster panel plates having a thickness of 12.5 mm.
The wall 30 is formed with a through hole 10 that penetrates the wall 30 horizontally. The through-hole 10 has a shape in which the long body 20 can be inserted.
As illustrated in FIG. 1, the through hole 10 is formed in a rectangular shape, and a long body 20 passes through the through hole 10.

As long body 20 used for the present invention, various piping, a cable, etc. can be mentioned, for example.
Examples of the various pipes include water supply / drainage pipes, intake / exhaust pipes, water pipes, gas pipes, air conditioning / heating medium transfer pipes, and the like.
Examples of the cable include a CV cable, a CVD cable in which two single-core cables are bundled, a CVT cable in which three single-core cables are bundled, and other power cables and signal cables.
For example, in the case of a CV cable using cross-linked polyethylene as an insulator and having a nominal cross-sectional area of 250 mm ² , the outer diameter of the conductor is about 19 mm and the thickness of the outer insulator is about 2.5 mm. The outer sheath thickness is about 1.8 mm, and the diameter of the single wire is about 30 mm.

  The elongate body can be supported by being suspended from the ceiling surface by a suspension bolt or the like, or supported from a wall surface, and can be fixed at a certain position of the through hole 10.

Moreover, as the long body 20, a cable rack or the like in which various pipes, cables and the like are installed can be used. Various pipes, cables and the like can be supported by the cable rack or the like.
Although not specifically illustrated, as a specific example of the cable rack that can be used in the present invention, for example, it is formed in a ladder shape from a metal plate material formed by bending a zinc iron plate, an aluminum extruded material, etc., and constitutes left and right vertical pieces And the like including at least a plurality of cross members connecting the parent beam members at a predetermined interval.
It has a structure in which various pipes, cables and the like can be placed inside the cable rack. When a cable rack is used, the cable rack can be supported by being suspended from a ceiling surface by a suspension bolt or the like, or supported from a wall surface, and can be fixed at a certain position of the through hole 10.

FIG. 2 is a schematic cross-sectional view of an essential part for explaining a structure in which a thermally expandable fireproof block used in the present invention is installed inside a through hole formed in a wall.
First, the thermally expandable fireproof block 100 is installed in the through hole 10 formed in the wall 30.
A plurality of thermally expandable fireproof blocks 100 are sequentially stacked on the thermally expandable fireproof block 100.
In the case of the first embodiment 1 according to the present invention, a gap shielding filler 200 is inserted into the gap between the elongated body 20 and the thermally expandable refractory block 100.
As shown in FIG. 2, the gap between the elongated body 20 and the inside of the through hole 10 is shielded by the thermally expandable fireproof block 100 and the gap shielding filler 200.
The filler body 201 of the gap shielding filler 200 is inserted into the through hole 10 formed in the wall 30.
A flexible base material 202 is installed at one end of the filler main body 201 of the gap shielding filler 200. The flexible base material 202 is installed so as to cover the gap inside the through hole 10 in a plane direction parallel to the surface of the wall 30 as a fire protection compartment.
A portion of the flexible substrate 202 that contacts the long body 20 is bent along the surface of the long body 20.

FIG. 3 is a schematic view exemplifying a structure in which the fire prevention compartment penetration structure according to the first embodiment is observed from the direction perpendicular to the surface of the wall 30.
A gap shielding filler 200 is inserted in the gap between the elongated body 20 and the thermally expandable fireproof block 100.
As shown in FIG. 3, the thermally expandable fireproof block 100 and the gap shielding filler 200 are filled in the gap between the elongated body 20 and the inside of the through hole 10.
For convenience of explanation, the flexible base material 202 of the gap shielding filler 200 is indicated by a broken line.
By cutting a part of the flexible base material 202 using a cutting means such as scissors or making a cut, the gap between the thermally expandable fireproof block 100 and the long body 20 is shielded. The surface of the wall 30 can be covered with the flexible base material 202 of the gap shielding filler 200.

Next, the gap shielding filler used in the present invention will be described.
The gap shielding filler used in the present invention includes a filler main body and a flexible substrate at least at one end of the filler main body.

FIG. 4 is a schematic perspective view illustrating a specific example of the gap shielding filler used in the present invention.
As illustrated in FIGS. 4A and 4B, the gap shielding fillers 200 and 210 used in the present invention include flexible base materials 202 and 212 at one ends of the filler main bodies 201 and 211, respectively. ing.
Further, the gap shielding fillers 220 and 230 used in the present invention are flexible base materials 222, 223, and 23, respectively, at both ends of the filler main bodies 221, 231 as illustrated in FIGS. 4 (c) and 4 (d). 232 and 233 may be provided.
Furthermore, the gap shielding filler 240 used in the present invention includes flexible base materials 242 and 243 on two opposite side surfaces in the longitudinal direction of the filler main body 241 as illustrated in FIG. You can also.
Moreover, the shape of the flexible base material 252 of the gap shielding filler 250 used in the present invention may be circular as illustrated in FIG.

Specific examples of the shape of the filler main body of the gap shielding filler used in the present invention include, for example, a rectangular column, a polygonal column such as a hexagonal column, a cylinder, an elliptical column, a rectangular cylinder, a polygonal cylinder such as a hexagonal cylinder, a cylinder, An elliptic cylinder etc. are mentioned The shape of the said filler main body can select and use 1 type, or 2 or more types.

Specific examples of the shape of the flexible base material of the gap shielding filler used in the present invention include, for example, a polygon such as a quadrangle and a parallelogram, a circle, and an ellipse.
The shape of the flexible substrate can be used by selecting one type or two or more types.

Next, the relationship between the filler main body of the gap shielding filler used in the present invention and the flexible substrate will be described.
FIG. 5 is a schematic view of the gap shielding filler for explaining the relationship between the filler main body of the gap shielding filler used in the present invention and the flexible substrate.
For convenience of explanation, in FIG. 5, the flexible base material 202 of the gap shielding filler is indicated by a solid line, and the end surface of the filler body 201 of the gap shielding filler is indicated by a broken line.
In the case of FIG. 4 described above, the filler body and the flexible substrate are arranged such that the position of the center of gravity of the end surface of the filler body matches the position of the center of gravity of the flexible substrate. Was connected.
The gap shielding filler used in the present invention is not necessarily required to match the position of the center of gravity of the end surface of the filler body with the position of the center of gravity of the flexible base material. For example, FIG. And as illustrated in (h), the position of the center of gravity of the end face of the filler main body may be installed at a position other than the center of gravity of the flexible base material depending on the purpose and application.

  The area of the flexible base material used in the present invention is preferably larger than the area of the end face of the filler body, and is in the range of 1.1 to 100 with respect to the area of the end face of the filler body. More preferably, it is more preferably in the range of 1.1-20.

  Examples of the material of the filler main body of the gap shielding filler include a combustible material, a non-combustible material, and a thermally expandable refractory material.

Examples of the combustible material include synthetic resin plates, cardboard, and cardboard.
Examples of the synthetic resin used in the present invention include polyvinyl chloride resin, polyvinylidene chloride resin, acrylic resin, ABS resin, polyvinylidene fluoride resin, polyethylene resin, polypropylene resin, polyurethane resin, polyethylene terephthalate resin, and the like.
Examples of paper used for the corrugated cardboard and cardboard include kraft paper, Japanese paper, K liner paper, and a release substrate.
The said combustible material can use 1 type, or 2 or more types.

Examples of the incombustible material include an inorganic fiber mat, an inorganic panel, a metal plate, a metal net, and a putty material.
Examples of inorganic fibers used in the present invention include machine fibers such as glass wool, rock wool, ceramic wool, gypsum fiber, carbon fiber, stainless steel fiber, slag fiber, silica alumina fiber, alumina fiber, silica fiber, and zirconia. Examples thereof include fibers.
The said inorganic fiber can use 1 type, or 2 or more types.

The inorganic panel can be the same as described for the previous wall.
The said inorganic panel can use 1 type, or 2 or more types.

Moreover, as a metal used for the said metal plate, a metal net, etc., 1 type, or 2 or more types, such as steel, iron, copper, and aluminum, is mentioned, for example. The metal may be an alloy, and the material may contain a metal such as chromium, manganese, nickel, zinc, tin, or the like.
The said alloy can use 1 type, or 2 or more types.

Examples of the putty material include a building sealing material defined by JIS A5758, a gypsum board joint treatment material defined by JIS A6914, and mortar.
The putty material is preferably a putty, caulking or the like formed by blending a filler such as chloroprene rubber, silicone, or the like with a filler, a flame retardant, or the like.

As the thermally expandable refractory material, for example, a thermally expandable resin composition containing a resin component such as epoxy resin, butyl rubber, thermosetting foamed resin, thermally expandable graphite, phosphorus compound, inorganic filler and the like was molded. Heat-expandable fireproof molded body,
An inorganic fiber mat in which a thermally expandable resin composition is dispersed, obtained by repeating an operation of gluing the inorganic fiber in water in which the thermally expandable resin composition is dispersed using inorganic fibers;
Examples of the inorganic fiber mat in which the heat-expandable resin composition is dispersed are obtained by repeating the operation of impregnating the inorganic fiber mat in an organic solvent in which the heat-expandable resin composition is dispersed using the inorganic fiber mat. be able to.

  A commercially available product can be appropriately selected and used as the thermally expandable refractory molded article. As such a commercial product, for example, Fibro (manufactured by Sekisui Chemical Co., Ltd. (registered trademark. Sheet material containing a resin composition containing epoxy resin, rubber, and thermally expandable graphite)), manufactured by Sumitomo 3M Co., Ltd. Fire barrier (sheet material composed of a resin composition containing chloroprene rubber and verculite, expansion coefficient: 3 times, thermal conductivity: 0.20 kcal / m · h · ° C.), medhicut (manufactured by Mitsui Kinzoku Paint Chemical Co., Ltd.) Sheet material comprising a resin composition containing a polyurethane resin and thermally expandable graphite, expansion coefficient: 4 times, thermal conductivity: 0.21 kcal / m · h · ° C.) and the like.

  The material of the filler main body of the gap shielding filler is preferably made of a thermally expandable refractory material.

Examples of the material of the flexible base material of the gap shielding filler include cloth and synthetic resin film.
As said cloth, a woven fabric, a nonwoven fabric, etc. can be mentioned, for example. Examples of the fibers used for the woven fabric and the nonwoven fabric include polyethylene, polypropylene, polyester, nylon, polyvinyl chloride, and cellulose fiber.
Examples of the synthetic resin film include films made from polyethylene, polypropylene, polyamide, polyester, nylon, acrylic, vinyl chloride, vinylidene chloride, and the like.
The material of the flexible substrate can be used alone or in combination of two or more.

Next, the thermally expandable fireproof block used in the present invention will be described.
Examples of the heat-expandable fireproof block material used in the present invention include a heat-expandable fireproof material, a noncombustible material, a combustible material, and a packaging material.

Specific examples of the thermally expandable refractory material, the non-combustible material, and the combustible material are the same as those of the material of the filler main body of the gap shielding filler described above.
Examples of the packaging material include paper, cloth, and synthetic resin film.
The paper is the same as that of the previous corrugated cardboard or cardboard.
As said cloth, a woven fabric, a nonwoven fabric, etc. can be mentioned, for example. Examples of the fibers used for the woven fabric and the nonwoven fabric include polyethylene, polypropylene, polyester, nylon, polyvinyl chloride, and cellulose fiber.
Examples of the synthetic resin film include films made from polyethylene, polypropylene, polyamide, polyester, nylon, acrylic, vinyl chloride, vinylidene chloride, and the like.
One or two or more of the packaging materials can be used.

Next, specific examples of the thermally expandable fireproof block used in the present invention will be described.
FIG. 6 is a schematic perspective view for explaining a thermally expandable fireproof block used in the present invention.
A heat-expandable fireproof block 110 illustrated in FIG. 6A is a laminate of a heat-expandable fireproof sheet 40 and an inorganic fiber mat 50.
A heat-expandable fireproof block 120 illustrated in FIG. 6B is a laminate in which a heat-expandable fireproof sheet 40 is sandwiched between two inorganic fiber mats 50.

  When the heat-expandable fireproof sheet 40 used for the heat-expandable fireproof block 110 and the heat-expandable fireproof block 120 shown in FIG. 6A and FIG. It is preferable that it is the range of 3-50 mm including this.

  The heat-expandable fireproof block 130 illustrated in FIG. 6C is composed of an inorganic fiber mat 60 in which a heat-expandable resin composition is dispersed.

The heat-expandable fireproof block 140 illustrated in FIG. 6D is a laminate of the heat-expandable fireproof sheet 40, the inorganic fiber mat 50, and the synthetic resin plate 70.
The heat-expandable fireproof block 150 illustrated in FIG. 6E is a laminate of the heat-expandable fireproof sheet 40, the inorganic fiber mat 50, and the metal net 80.
The heat-expandable fireproof block 160 illustrated in FIG. 6F is a laminate of the heat-expandable fireproof sheet 40, the inorganic fiber mat 50, and the cardboard 81.

A heat-expandable fireproof block 170 illustrated in FIG. 6G is obtained by packaging the heat-expandable fireproof blocks 110 to 160 with a packaging material 90.
The strength of the heat-expandable fireproof block 170 can be increased by installing strong paper such as cardboard on the bottom surface of the packaging material 90.

Next, the heat-expandable fireproof block used in the present invention can also be used as a gap shielding filler.
As the thermally expandable fireproof block used as the gap shielding filler, for example, as shown in FIGS. 4 and 5, a flexible base material may be installed on the previously described thermally expandable fireproof block.

  Hereinafter, embodiments will be described in detail with reference to the drawings. In addition, this invention is not limited at all by these Examples.

FIG. 7 is a schematic perspective view for explaining a heat-expandable fireproof block used for the fireproof compartment penetration structure 2 according to the first embodiment.
The heat-expandable fireproof block 170 used in the fireproof compartment penetrating part structure 2 according to the first embodiment includes a heat-expandable fireproof sheet 40 and an inorganic fiber mat 50 laminated.
The heat-expandable fireproof sheet 40 is obtained by molding a heat-expandable resin composition containing butyl rubber, heat-expandable graphite, etc. (registered trademark Fiblock, manufactured by Sekisui Chemical Co., Ltd.), and has a thickness of 4 mm. It is.
The inorganic fiber mat 50 is made of rock wool having a density of 120 kg / m ³ and a thickness of 50 mm.
The heat-expandable fireproof sheet 40 is turned up, the inorganic fiber mat 50 is turned down, and the heat-expandable fireproof sheet 40 and the inorganic fiber mat 50 are packaged by a packaging material 90 made of polyester nonwoven fabric, and the adhesive is used to The packaging material 90 was fixed.

FIG. 8 shows a cross section obtained by cutting a wall vertically, and is a schematic cross-sectional view of the fire prevention compartment penetration structure 2 according to the first embodiment.
In FIG. 8, two 12.5 mm plaster panel plates are used in an overlapping manner, and the wall 30 is formed.
A through-hole 10 is formed through the wall 30 horizontally. The through-hole 10 has a shape in which the long body 20 can be inserted.
The through hole 10 shown in FIG. 8 is formed in a rectangular shape, and a long body 20 passes through the through hole 10.
In FIG. 8, a plurality of cable pipes are installed as the long body 20.

The heat-expandable fireproof block 170 has the heat-expandable fireproof sheet 40 inside kept substantially horizontal. The thermally expandable fireproof sheet 40 is laminated with the inorganic fiber mat 50 inside the thermally expandable fireproof block 170.
In the present invention, the term “substantially horizontal” means that the angle is −5 to 5 degrees with respect to the horizontal direction of the wall 30 surface and the direction perpendicular to the vertical line with respect to the horizontal plane.

The thermally expandable refractory blocks 170 were sequentially stacked inside the through hole 10.
Further, a gap shielding filler 200 was inserted into the gap between the elongated body 20 and the thermally expandable fireproof block 170.
The gap shielding filler 200 used in Example 1 includes a filler main body 201 in which a thermally expandable resin composition is formed into a square pillar, and a flexible base material made of a polyester nonwoven fabric on both end faces of the filler main body 201. 202 is adhered by an adhesive.
Further, a portion of the flexible substrate 202 that is in contact with the elongated body 20 is bent.
By inserting the gap shielding filler 200 into the gap between the elongated body 20 and the thermally expandable fireproof block 170, the inside of the through hole 10 can be shielded.

  The fire prevention compartment penetration part structure 2 according to the first embodiment is obtained by inserting the gap shielding filler 200 into the gap between the elongated body 20 and the thermally expandable fireproof block 170, and therefore is easily constructed. Can do.

  Moreover, when the fireproof compartment penetration part structure 2 which concerns on Example 1 is exposed to heat, such as a fire, the said heat-expandable fireproof sheet 40 of the said heat-expandable fireproof block 170 forms an expansion residue. The expansion residue and the inorganic fiber mat 50 close the inside of the through hole 10 of the wall 30.

The filler main body 201 of the gap shielding filler 200 is made of a thermally expandable resin composition. For this reason, when the fireproof compartment penetration part structure 2 according to the first embodiment is exposed to heat such as a fire, the filler main body 201 of the gap shielding filler 200 also forms an expansion residue. Due to the expansion residue, the inside of the through hole 10 of the hollow wall 30 is more reliably closed.
For this reason, the fire prevention compartment penetration structure 2 according to the first embodiment is excellent in fire resistance.

In Example 2, the gap shielding filler 210 was used instead of the thermally expandable refractory block 170 used in Example 1, and the gap shielding filler 200 used in Example 1 was not used. Except for this, this is the same as in Example 1.
FIG. 9 is a schematic perspective view for explaining the gap shielding filler 210 used in the second embodiment.
The filler main body 180 used for the fireproof compartment penetration part structure 3 according to Example 2 is formed by laminating a thermally expandable fireproof sheet 40 and an inorganic fiber mat 50.
The heat-expandable fireproof sheet 40 is obtained by molding a heat-expandable resin composition containing butyl rubber, heat-expandable graphite, etc. (registered trademark Fiblock, manufactured by Sekisui Chemical Co., Ltd.), and has a thickness of 4 mm. It is.
The inorganic fiber mat 50 is made of rock wool having a density of 120 kg / m ³ and a thickness of 50 mm.
The heat-expandable fireproof sheet 40 is faced up, the inorganic fiber mat 50 is faced down, and the heat-expandable fireproof sheet 40 and the inorganic fiber mat 50 are packaged with a packaging material 90 made of polyester nonwoven fabric, and a commercially available adhesive The packaging material 90 was fixed to obtain a filler main body 180.

  Next, a flexible substrate 212 made of a polyester nonwoven fabric was fixed to the end face of the filler main body 180 with an adhesive. A gap shielding filler 210 was obtained by increasing the flexible base material 212 by 10 mm from the end face of the filler main body 180 vertically and horizontally.

  Next, the clearance shielding filler 210 according to Example 2 was obtained by sequentially stacking the gap shielding filler 210 in the through hole 10 in the same manner as in Example 1.

FIGS. 10 and 11 are schematic cross-sectional views of the fire prevention compartment penetration structure according to the second embodiment.
As shown in FIG. 10, the inside of the through hole 10 and the through hole 10 in the fire protection compartment can be shielded by the flexible base material 212 of the gap shielding filler 210.
The flexible substrate 212 is appropriately cut or cut by a cutting means such as scissors, so that the flexible substrate 212 is cut along the surfaces of the wall 30 and the long body 20. Can be installed.
Further, a portion of the flexible base 212 that contacts the long body 20 is bent along the surface of the long body 20.

  As in the case of the first embodiment, the fire prevention compartment penetration structure 3 according to the second embodiment is excellent in workability and fire resistance.

Example 3 is the same as Example 2 except that a gap shielding filler 260 is used instead of the gap shielding filler 210 used in Example 2.
FIG. 12 is a schematic perspective view for explaining the gap shielding filler 260 used in the third embodiment.
As shown in FIG. 12, the thermal expansion of the inorganic fiber mat 50 made of rock wool having a density of 120 kg / m ³ and a thickness of 50 mm is 4 mm and includes butyl rubber, thermally expandable graphite and the like. A heat-expandable refractory sheet 40 (registered trademark Fibrok, manufactured by Sekisui Chemical Co., Ltd.) obtained by molding the conductive resin composition was wound.
Next, the inorganic fiber mat 50 around which the heat-expandable fireproof sheet 40 is wound is packaged with a packaging material 90 made of a polyester nonwoven fabric, and the packaging material 90 is fixed with a commercially available adhesive, and the filler main body 181 is fixed. Obtained.

  Next, a flexible base material 262 made of a polyester nonwoven fabric was fixed to the end face of the filler body 181 with an adhesive. The flexible base material 262 was made to increase by 10 mm from the end surface of the packaging material 90 in the vertical and horizontal directions to obtain a gap shielding filler 260.

Next, in the same manner as in Example 2, the gap shielding filler 260 was sequentially stacked inside the through hole 10.
The inside of the through hole 10 can be shielded by the flexible base material 262 of the gap shielding filler 260.

  As in the case of the second embodiment, the fireproof section penetrating portion structure 4 according to the third embodiment is excellent in workability and fire resistance.

The fourth embodiment is the same as the second embodiment except that the gap shielding filler 270 is used instead of the gap shielding filler 210 used in the second embodiment.
FIG. 13 is a schematic perspective view for explaining the gap shielding filler 270 used in the fourth embodiment.
As shown in FIG. 13, the heat is 4 mm and includes butyl rubber, thermally expandable graphite, etc. by two inorganic fiber mats 50 made of rock wool having a density of 120 kg / m ³ and a thickness of 50 mm. A heat-expandable fireproof sheet 40 (registered trademark Fiblock, manufactured by Sekisui Chemical Co., Ltd.) obtained by molding the expandable resin composition was laminated. .
Next, a laminate composed of the inorganic fiber mat 50, the heat-expandable fireproof sheet 40, and the inorganic fiber mat 50 is packaged with a packaging material 90 made of polyester nonwoven fabric, and the packaging material 90 is fixed with a commercially available adhesive. Thus, a filler main body 182 was obtained.

  Next, a flexible base material 272 made of a polyester nonwoven fabric was fixed to the end face of the filler main body 182 with an adhesive. The flexible base material 272 was made to increase by 10 mm from the end surface of the packaging material 90 in the vertical and horizontal directions to obtain a gap shielding filler 270.

Next, in the same manner as in Example 2, the gap shielding filler 270 was sequentially stacked inside the through hole 10.
The inside of the through hole 10 can be shielded by the flexible base material 272 of the gap shielding filler 270.

  As in the case of the second embodiment, the fireproof compartment penetration structure 5 according to the fourth embodiment is excellent in workability and fire resistance.

The fifth embodiment is the same as the second embodiment except that a gap shielding filler 280 is used instead of the gap shielding filler 210 used in the second embodiment.
FIG. 14 is a schematic perspective view for explaining the gap shielding filler 280 used in the fifth embodiment.
The inorganic fiber mat 60 was obtained by dispersing a thermally expandable resin composition containing butyl rubber, thermally expandable graphite and the like in rock wool. The composition of the heat-expandable resin composition used is the same as that of the heat-expandable fireproof sheet 40 used in Example 1. The rock wool has a density of 120 kg / m ³ and a thickness of 50 mm.
Next, the inorganic fiber mat 60 in which the thermally expandable resin composition is dispersed is packaged with a packaging material 90 made of a polyester nonwoven fabric, and the packaging material 90 is fixed with a commercially available adhesive, and the thermally expandable fireproof block 183. Got.
The obtained heat-expandable fireproof block 183 contains the heat-expandable resin composition more evenly than the heat-expandable fireproof block 170 used in Example 1. For this reason, since the said heat-expandable fireproof block 183 has the property which spreads not only in the up-down direction of the surface of the wall 30, but also in the left-right direction and the front-back direction, it is suitable for using for the through-hole 10 of a complicated shape.

  Next, the flexible base material 282 made of a polyester nonwoven fabric was fixed to the end face of the filler body 183 made of the heat-expandable fireproof block 183 with an adhesive. The flexible base material 282 was made to increase by 10 mm from the end face of the packaging material 90 in the vertical and horizontal directions to obtain a gap shielding filler 280.

Next, in the same manner as in Example 2, the gap shielding filler 280 was sequentially stacked inside the through hole 10.
The inside of the through hole 10 can be shielded by the flexible base material 282 of the gap shielding filler 280.

  As in the case of the second embodiment, the fireproof section penetrating portion structure 6 according to the fifth embodiment is excellent in workability and fire resistance.

Example 6 is the same as Example 2 except that the gap shielding filler 290 is used instead of the gap shielding filler 210 used in Example 2.
FIG. 15 is a schematic perspective view for explaining the gap shielding filler 290 used in the sixth embodiment.
The gap shielding filler 290 used in Example 6 is made of urethane resin foam.
First, according to the formulation shown in Table 1, the thermally expandable resin foam 15 was divided into A component and B component, and each component was stirred using a planetary stirrer.
Specifically, a urethane resin foam was used as the thermally expandable resin foam. Polyether polyol, which is a curing agent for urethane resin foam, was used as the resin component of component A, and a polyisocyanate compound, which is the main component of urethane resin foam, was used as the resin component of component B.
The ratio of the active hydrogen group (OH) in the polyol compound and the active isocyanate group (NCO) in the polyisocyanate compound (NCO / OH) is obtained by combining the polyisocyanate compound as the main component of the urethane resin foam and the polyether polyol as the curing agent. ) Was adjusted to an equivalent ratio of 1.64: 1.

Next, the viscosities of component A and component B were measured. The viscosity was measured at 25 ° C. using a B-type rotary viscometer (manufactured by Viscotec). The rotational speed of the B-type rotary viscometer at the time of measurement was 10 rpm, and an R5 spindle was used.
The respective viscosities of the obtained A component and B component were added at the ratio of the weight ratio of the A component and B component to obtain the overall viscosity. This value is shown in Table 1.

The A component and the B component were poured into a mold, and the A component and the B component were cured while foaming. The cured product was taken out from the mold to obtain a thermally expandable resin foam 15 made of urethane resin foam.
Since the thermally expandable resin foam 15 contains bubbles, the specific gravity is small and the handleability is excellent.

  Next, the thermally expandable resin foam 15 was packaged with a packaging material 90 made of a polyester nonwoven fabric, and the packaging material 90 was fixed with a commercially available adhesive to obtain a thermally expandable fireproof block 184.

  Next, the flexible base material 292 made of a polyester nonwoven fabric was fixed to the end face of the filler main body 184 made of the heat-expandable fireproof block 184 with an adhesive. The flexible base material 292 was made to increase by 10 mm from the end surface of the packaging material 90 in the vertical and horizontal directions to obtain a gap shielding filler 290.

Next, in the same manner as in Example 2, the gap shielding filler 290 was sequentially stacked inside the through hole 10.
The inside of the through hole 10 can be shielded by the flexible base material 292 of the gap shielding filler 280.

  As in the case of Example 2, the fireproof compartment penetration structure 7 according to Example 65 is excellent in workability and fire resistance.

  The fireproof compartment penetration structure of the present invention can easily give a fireproof function to the hollow wall. For this reason, the fireproof property of a building etc. can be improved more efficiently.

1, 2, 3, 4, 5, 6, 7, 500 Fire prevention compartment penetration structure 10 Through hole 11 Gap 20 Long body 30 Wall 100, 110, 120, 130, 140, 150, 160, 170 Thermal expansion fire resistance Block 40 Thermally expandable refractory sheet 50 Inorganic fiber mat 60 Inorganic fiber mat in which thermally expandable resin composition is dispersed 70 Synthetic resin plate 80 Metal net 81 Corrugated cardboard 90 Packaging material 200, 210, 220, 230, 240, 250, 260 , 270, 280, 290 Gap shielding filler 180,181,182,183,201,211,221,231,241,251 Filler body 202,212,222,223,232,233,242,243,262 272, 282, 292 Flexible base material 300 Fireproofing filler

Claims (6)

A long body is inserted through the through hole provided in the fire prevention compartment, and a plurality of thermally expandable fireproof blocks are installed between the inside of the through hole and the long body,
A gap shielding filler is inserted into the gap inside the through hole,
The gap shielding filler comprises a filler main body, and a flexible base material at at least one end of the filler main body,
The fireproof compartment penetration structure, wherein the flexible base material covers a gap inside the through hole. The filler main body of the gap shielding filler comprises at least one selected from the group consisting of a combustible material, a non-combustible material, and a thermally expandable refractory material,
The fireproof compartment penetration part structure according to claim 1, wherein the flexible base material of the gap shielding filler is at least one of a cloth and a synthetic resin film.   The fireproof compartment penetration structure according to claim 1 or 2, wherein the flexible base material of the gap shielding filler is at least one selected from the group consisting of a polygon, a circle, and an ellipse.   The fireproof according to any one of claims 1 to 3, wherein the thermally expandable fireproof block is formed by packaging at least one selected from the group consisting of a thermally expandable fireproof sheet, a noncombustible material and a combustible material with a packaging material. Compartment penetration part structure. The gap shielding filler is provided with a flexible substrate at at least one end of the thermally expandable fireproof block,
The fireproof compartment penetration part structure in any one of Claims 1-4 with which the said flexible base material covers the clearance gap inside the said through-hole in the surface direction parallel to the surface of the said fireproof compartment.   The said clearance shielding filler for using for the fire prevention division penetration part structure in any one of Claims 1-5.

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