JP5065840B2 - Fireproof compartment penetration structure - Google Patents

Description

  The present invention relates to a structure in which a cable rack penetrates a partition portion such as a fire wall that defines a fire prevention section of a building or the like, and particularly relates to a fire prevention section penetration portion structure having excellent workability and stable fire resistance.

Conventionally, in a building or the like, when a long body such as a cable or a pipe is disposed in a partition portion that defines a fire prevention section such as a building wall, a partition wall, a floor, or a ceiling, an opening is formed in the partition portion. It is necessary to provide it. In this case, a gap is generated between the elongated body and the opening. For this reason, when a fire occurs in one fire prevention compartment defined by the partition, the smoke is transmitted to the other fire prevention compartment of the partition through the gap between the elongated body and the opening. There is a problem that the fire spreads.
In order to cope with this problem, there has been proposed a fire-blocking section penetrating structure in which the gap is closed by arranging a plurality of fire-proof fillers in the gap between the elongated body and the opening (Patent Document 1). ).
According to this proposal, since the fireproof compartment penetration structure can be obtained by stacking a plurality of fireproof fillers in the gap, it is said that the manufacturing is easy, the cost is low, and the construction is easy. .
However, since this fire-blocking section through-hole structure requires a large amount of fire-proofing filler to close the gap, not only is the cost high, but it is easy if the fire-proof filler is poorly stacked. In addition, there is a problem that the fireproofing filler collapses. Furthermore, although the partition can be constructed in the case of a wall or the like that is installed perpendicular to the floor of a building or the like in the structure for penetrating the fire compartment, the partition is not connected to the ground, such as a ceiling or a floor. In the case of the partition part installed horizontally, the said fireproofing filler cannot be piled up in an opening part, and there existed a problem that the said fireproof division penetration part structure could not be constructed.
Further, as another fire prevention compartment penetration structure, the opening is covered with a shielding plate provided with a through hole, and a thermal expansion filler is packed in a gap between the through hole of the shielding plate and the elongated body A through structure has been proposed (Patent Document 2).
According to this proposal, the fireproof performance can be improved and the workability is also excellent.
However, in this fireproof section penetrating portion structure, for example, when the elongated body is arranged along the ceiling, it is necessary to fix the heavy upper end of the shielding plate to the ceiling, but this operation is not easy. There existed a problem that construction became difficult by the aspect of the said fire prevention division penetration part structure. In addition, it is necessary to prepare a shielding plate having a different shape in accordance with the opening at each construction site, and it is found that the shape of the opening and the shielding plate does not match at the construction site. There was also a problem that it took time to adjust the construction.
Furthermore, as another fire prevention compartment penetration structure, a fire prevention compartment penetration structure has been proposed in which the elongated body is surrounded by a fire prevention sheet and the gap between the elongated body and the opening is covered with another fire prevention sheet ( Patent Document 3).
According to this proposal, the structure is simple and the construction can be easily and quickly performed.
However, in this fireproof compartment through-portion structure, when the long body is disposed in contact with the opening, the long body cannot be effectively surrounded by a fireproof sheet. In the case of surrounding the fire protection sheet, there is a problem that operations such as installation, expansion, replacement, and removal of the long body become complicated.
JP 2002-247735 A Japanese Patent Laying-Open No. 2005-320724 Japanese Patent Laid-Open No. 11-236739

  The present invention has been made in view of these problems, and the object of the present invention can be easily constructed regardless of the position of the elongated body in the opening, and can be applied to a partition such as a wall or a partition wall. To provide a fire-blocking section through structure that can be applied to a partition such as a ceiling or floor without being limited, and that can be easily operated for installation, expansion, replacement, removal of the long body. is there.

  As a result of intensive studies by the present inventors to solve the above problem, a cable rack penetrates the opening, and a long body is inserted into the cable rack, and the opening is formed by a thermally expandable fireproof sheet. And a folded portion is provided in the thermally expandable refractory sheet, and the cable rack is inserted into the gap of the thermally expandable refractory sheet formed by the folded portion, while the cable rack is filled with a refractory. The present inventors have found that a fire prevention compartment penetration structure in which a material is arranged meets the purpose of the present invention, and has completed the present invention.

That is, the present invention
[1] An opening formed in a partition that defines a fire prevention section provided in a building;
A cable rack passing through the opening;
An elongated body inserted through the inside of the cable rack;
A thermally expandable fireproof sheet covering the entire opening around the cable rack along the surface of at least one of the partition parts;
A refractory filler disposed inside the cable rack;
A structure having at least
The heat-expandable fireproof sheet has two or more cuts for forming a folded portion of the heat-expandable fireproof sheet, and the position of the partition portion depends on the position where the terminal ends of the cuts are connected. A folded portion bent outwardly and horizontally with respect to the surface of the cable rack;
The cable rack is inserted through the gap formed by the folded portion of the thermally expandable fireproof sheet, and the surface of the cable rack is covered by the folded portion of the thermally expandable fireproof sheet,
The fireproof filler is disposed between the cable rack and the elongated body located outside the partition part covered by the folded portion of the thermally expandable fireproof sheet ,
A fireproof compartment penetration structure is provided , comprising a thermally expandable fireproof tape around the cable rack including the folded portion of the thermally expandable fireproof sheet ,
[2] Two or more thermally expandable fireproof sheets covering the entire opening around the cable rack along the surface of at least one of the partitions,
A structure having at least
The first heat-expandable fireproof sheet has two cuts spaced from one side on one side of the cable rack at substantially the same width as the long side of the cable rack cross section. According to the position where the end portions of the two cuts are connected to each other, a folded portion bent in the horizontal direction with respect to the outer side of the partition and the one surface of the cable rack,
The second heat-expandable fireproof sheet has two cuts at an interval of approximately the same width as the long side of the cable rack cross section from one side on the other side of the cable rack. A folded portion bent in a horizontal direction with respect to the other surface of the cable rack so as to face the folded portion of the first thermally expandable refractory sheet depending on the position where the terminal ends of the two cuts are connected. Have
The first thermally expandable refractory sheet and the second thermally expandable refractory sheet cover the opening along the periphery of the cable rack with respective remaining concave surfaces other than the folded portion. Placed in
The cable rack passes through a gap formed by the folded portion of the first thermally expandable fireproof sheet and the folded portion of the second thermally expandable fireproof sheet, and one surface of the cable rack is the first Covered by a folded portion of one thermally expandable refractory sheet, and the other surface is covered by a folded portion of a second thermally expandable refractory sheet;
The fireproof filler is covered with the folded portions of the first and second thermally expandable fireproof sheets, inside the cable rack located outside the partition, and long and body, disposed between,
In the above [1], a heat-expandable fireproof tape is provided around the cable rack including the folded portions of the first heat-expandable fireproof sheet and the second heat-expandable fireproof sheet . Providing the described fireproof compartment penetration structure,
[3] first and second cable racks penetrating through the opening;
Three or more thermally expandable fireproof sheets covering the entire opening around the cable rack along the surface of at least one of the partition parts;
A structure having at least
The first heat-expandable fireproof sheet is spaced from one side on the same side as the surface of the first cable rack on the inner peripheral surface side of the opening with a substantially same width as the long side of the first cable rack cross section. And has two notches, and is a folded portion bent in the outer direction of the partitioning portion and in the horizontal direction with respect to the surface of the first cable rack, depending on the position where the end portions of the two notches are connected. Have
The second heat-expandable fireproof sheet is spaced from one side on the same side as the surface of the second cable rack on the inner peripheral surface side of the opening with a width substantially equal to the long side of the second cable rack cross section. And has two cuts, and the positions of the two cuts are connected to the surface of the second cable rack in the same direction as the folded portion of the first thermally expandable refractory sheet, depending on the position where the end portions of the two cuts are connected. It has a folded portion bent in the horizontal direction,
The third thermally expandable fireproof sheet is for covering at least a portion of the opening between the first cable rack and the second cable rack, and is the same as the surface of the first cable rack. From one side on the side, there are two cuts at an interval of substantially the same width as the long side of the first cable rack cross section, and depending on the position where the respective end portions of the two cuts are connected, One side of the second cable rack having the folded portion bent in the horizontal direction with respect to the surface of the first cable rack in the same direction as the folded portion of the first thermally expandable fireproof sheet. From the position of connecting the end portions of the two cuts with two notches spaced at substantially the same width as the long side of the second cable rack cross section, the first heat Inflatable fireproof sheet Has a folded portion bent horizontally to the plane of the same direction as the folded portion second cable racks,
The first thermally expandable refractory sheet and the third thermally expandable refractory sheet have the openings along the periphery of the first cable rack by respective remaining concave surfaces other than the folded portion. It is arranged to cover
The second thermally expandable refractory sheet and the third thermally expandable refractory sheet have the openings along the periphery of the second cable rack by respective remaining concave surfaces other than the folded portion. It is arranged to cover
The first cable rack passes through a gap formed by the folded portion of the first thermally expandable refractory sheet and the folded portion of the third thermally expandable refractory sheet, and has one surface of the cable rack. Is covered by the folded portion of the first thermally expandable fireproof sheet, the other surface is covered by the folded portion of the third thermally expandable fireproof sheet,
The second cable rack is inserted through a gap formed by the folded portion of the second thermally expandable refractory sheet and the folded portion of the third thermally expandable refractory sheet. One surface is covered by the folded portion of the second thermally expandable fireproof sheet, and the other surface is covered by the folded portion of the third thermally expandable fireproof sheet,
The refractory filler is inside the first cable rack located outside the partition part covered by the respective folded portions of the first and second thermally expandable refractory sheets, and And the long body, and the first and second heat-expandable fire-resistant sheets and the third heat-expandable fire-resistant sheets are located outside the partition portion covered by the respective folded portions. Between the two cable racks and the elongated body ,
The periphery of the first cable rack including the folded portions of the first and third thermal expandable fireproof sheets and the third thermal expandable fireproof sheet and the second and third thermal expandable fireproof sheets The fireproof compartment penetration structure according to the above [1] or [2], wherein a thermally expandable fireproof tape is provided around the second cable rack including each folded portion of the fireproof sheet. Is what
[4] Three or more cable racks penetrating the opening;
At least we have a two or more intumescent fireproof sheets each disposed between the cable rack adjacent to each other,
A heat-expandable fireproof tape is provided around three or more cable racks each including a folded portion of two or more heat-expandable fireproof sheets disposed between the cable racks adjacent to each other. Providing a fireproof compartment penetration structure according to the above [3] ,
[5] The cable rack penetration structure according to any one of [1] to [4], wherein the cable rack includes a holding member for supporting the fireproof filler therein. It is intended to provide,
[6] The refractory filler is selected from the group consisting of a heat-resistant sealant, an inorganic filler, an inorganic fiber filler, a refractory putty, a thermally expandable refractory block and a thermally expandable refractory piece. The fireproof compartment penetration structure according to any one of the above [1] to [5] , characterized in that it is at least one of the following :
[7] The refractory filler is a combination of two or more refractory blocks having adhesiveness,
[1] In the above [1], the combination of the refractory blocks has a gap for allowing the elongated body to pass therethrough, and has an outer shape that can be installed substantially in the cable rack. Ru der provides a firestop penetration portion structure according to any one of to [6].

  According to the fire-blocking section penetration structure of the present invention, the cable rack is inserted into the gap formed by the folded portion using the folded portion of the thermally expandable fireproof sheet having a cut. The entire opening can be easily covered with the thermally expandable fireproof sheet at any position of the opening formed in the partition. For this reason, it is not dependent on the positional relationship of the said cable rack and the said opening part, The fire prevention division penetration part structure which can be constructed easily can be provided.

  In addition, according to the fireproof compartment penetration structure of the present invention, since the fireproof filler is disposed inside the cable rack that is outside the partition surface, it is necessary to dispose the fireproof filler inside the opening. In particular, it is possible to prevent the occurrence of an accident that drops the fireproof filler on the opposite side of the partition during construction work.

  In addition, the fireproof compartment penetration structure of the present invention is not limited to partitions such as walls and partition walls, and can be applied to partition parts such as ceilings and floors, and therefore can be widely applied.

  In addition, according to the structure for penetrating a fireproof compartment of the present invention, operations such as addition, replacement, and removal of the elongated body can be easily performed, so that not only the workability is excellent, but also its maintenance is easy. It also has the feature.

The first embodiment of the present invention will be described below with reference to the drawings.
First, the relationship between the cable rack used in the present invention, the opening formed in the partition that defines the fire protection section provided in the building, and the elongated body will be described.
FIG. 1 is a schematic perspective view of a main part for explaining the relationship between a cable rack used in the present invention, an elongated body, and an opening formed in a partition that defines a fire prevention section provided in a building. is there.

  The partition wall as the partition portion 1 that defines the fire prevention sections A and B illustrated in FIG. 1 includes, for example, a concrete structure, a lightweight cellular concrete board (ALC board), a hollow extruded cement board (ECP) structure, and a hollow concrete structure. A fire wall having a structure in which a support member such as wood or metal is combined with a face material, and has a thickness of about 100 mm. The partition part 1 is formed with an opening 2 that penetrates through the adjacent fire prevention sections A and B in the horizontal direction. The opening 2 communicates with the adjacent fire prevention sections A and B, and has a shape in which the cable rack 3 can be inserted. As illustrated in FIG. 1, the opening 2 is formed in a rectangular shape, and a cable rack 3 passes through the opening 2.

  The cable rack 3 is formed in a ladder shape from a metal plate material formed by bending a zinc iron plate, an aluminum extruded material, or the like, and a pair of parent beam members 4 and 4 constituting left and right vertical pieces, and the parent beam member is a predetermined piece. It includes at least a large number of cross members 5 and 5 connected at intervals, and is connected in the longitudinal direction so that the long body 6 can be placed thereon. The main beam member 4 and the cross member 5 are joined by screwing, welding, fitting or the like. The cable rack 3 configured in this way is supported by being suspended from the ceiling surface by suspension bolts or the like, or supported from a wall surface (not shown), and is installed at a certain position of the opening 2. .

Moreover, although the elongate body 6 is mounted in the said cable rack 3, as the elongate body 6 used for this 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.

FIG. 2 is a schematic perspective view for explaining the shapes of the first and second thermally expandable fireproof sheets used in the present invention.
The heat-expandable fireproof sheet used in the present invention has two or more cuts.
As illustrated in FIG. 2A, the first thermally expandable refractory sheet 10 used in the first embodiment has cuts 11 and 12. As illustrated in FIG. 2B, a folded portion 16 is formed by bending the end portion 13 of the notch 11 and the end portion 14 of the notch 12 at 90 degrees into an L shape at a position 15 where the end portion 14 is connected. Is done.

 The second thermally expandable fireproof sheet 20 also has cuts 21 and 22 as illustrated in FIG. Then, by bending the end portion 23 of the cut 21 and the end portion 24 of the cut 22 into an L shape at a position 25 where the end portion 24 is connected to each other, the folded portion 26 is formed as illustrated in FIG. It is formed.

FIG. 3 is a schematic perspective view for explaining a state in which the first thermally expandable fireproof sheet and the second thermally expandable fireproof sheet are combined.
As illustrated in FIG. 3, the cable rack is inserted by combining the folded portion 16 of the first thermally expandable fireproof sheet 10 and the folded portion 26 of the second thermally expandable fireproof sheet 20. Can be formed.

The height of the gap 30 can be adjusted by sliding the first thermally expandable fireproof sheet 10 and the second thermally expandable fireproof sheet 20 in the vertical direction.
The width of the gap 30 is adjusted by adjusting the width between the notches 11 and 12 provided in the first and second thermally expandable fireproof sheets 10 and 20, respectively, This can be done by changing the width between 22.

  Further, the position of the gap 30 with respect to the opening 2 (see FIG. 1) can be adjusted by adjusting the sizes of the first and second thermally expandable fireproof sheets 10 and 20 used, The position can be adjusted as appropriate by changing the positions of the positions 21, 21, 22 and the like.

Next, the relationship between the cable rack and the thermally expandable fireproof sheet will be described.
FIG. 4 is a schematic perspective view of a main part for explaining a state in which a heat-expandable fireproof sheet is arranged around the cable rack used in the present invention. The meaning of each reference symbol is the same as in the case of FIG.

  As illustrated in FIG. 4, the cable rack 3 passes through the opening 2 formed in the partition wall as the partition 1 that defines the fire prevention sections A and B. As in the case of FIG. 1, a long body 6 is inserted through the inside of the cable rack 3.

  As illustrated in FIG. 4, the side of the first thermally expandable fireproof sheet 10 with the turn 16 is directed toward the cable rack 3, and the first thermally expandable fireproof sheet from above the cable rack 3. 10 is arrange | positioned so that the opening part 2 may be covered. Further, the side of the second thermally expansible fireproof sheet 20 with the folded-back 26 is directed to the cable rack 3 side, and the second thermally expansible fireproof sheet 20 is opened from the lower side of the cable rack 3 to the opening 2. It is arranged to cover.

FIG. 5 is a schematic cross-sectional view of an essential part illustrating a cross section cut along a partitioning portion with respect to a structure in which the first thermally expandable fireproof sheet and the second thermally expandable fireproof sheet are arranged in the opening. is there.
A first heat-expandable fireproof sheet 10 and a second heat-expandable fireproof sheet 20 are arranged around the cable rack 3 from above and below, respectively, and are arranged around the cable rack along the surface of the partition wall 1. The opening 2 is covered.

Further, the skirt portion 17 adjacent to the folded portion 16 of the first thermally expandable fireproof sheet 10 and the skirt portion 27 adjacent to the folded portion 26 of the second thermally expandable fireproof sheet 20 are described. It has an overlapping part and is adjacent to the folded portion 26 of the first thermally expandable fireproof sheet 10 and adjacent to the folded portion 16 and the second thermally expandable fireproof sheet 20. The skirt portion 28 has an overlapping portion.
Note that the skirt 17 and the skirt 27 and the skirt 18 and the skirt 28 may be installed to face each other.

  In this way, the first thermally expandable fireproof sheet 10 and the second thermally expandable fireproof sheet 20 are formed on the cable rack 3 by the remaining concave surfaces other than the folded portions 16 and 26. It can arrange | position so that the said opening part may be covered along circumference | surroundings.

The fixing means for disposing the first thermally expandable fireproof sheet 10 and the second thermally expandable fireproof sheet 20 in the opening 2 is not particularly limited. For example, the partitioning section 1 such as an anchor bolt or an embedded pin may be used. Examples include an embedded type and a type that is fixed to the partition portion 1 such as a tension hook and a tension pin with a heat-resistant adhesive.
In FIG. 5, the first heat-expandable fireproof sheet 10 and the second heat-expandable fireproof sheet 20 are arranged in the opening 2 by the anchor bolt 32.

  When the first thermally expandable fireproof sheet 10 and the second thermally expandable fireproof sheet 20 are disposed in the opening 2, a double-sided adhesive tape or the like may be used in addition to the fixing means.

  FIG. 6 is a schematic cross-sectional view of an essential part illustrating a cross section of the fire prevention compartment penetration structure as the first embodiment of the present invention. In FIG. 6, the cross section of the cable rack 3 is exactly the cross section of the cross member 5 provided in the cable rack 3, but here, for convenience of explanation, the cable rack 3 and the long body 6 are included. Are represented by broken lines. These long bodies 6 are inserted through the inside of the cable rack 3 and supported by a cross member 5 provided in the cable rack 3.

As illustrated in FIG. 6, the folded portion 16 of the first thermally expandable fireproof sheet 10 that is bent in the horizontal direction with respect to the upper surface of the cable rack 3 covers the upper surface of the cable rack 3. The folded portion 26 of the second heat-expandable fireproof sheet 20 bent in the horizontal direction with respect to the lower surface of the cable rack 3 covers the lower surface of the cable rack 3.
In this way, the folded portions 16 and 26 are folded back to the outside of the partition portion 1 and provided at positions facing each other with the cable rack 3 in between.

  A fireproof filler 40 is disposed between the cable rack 3 covered by the folded portions 16 and 26 and the elongated body 6.

  As illustrated in FIG. 6, the inside of the cable rack 3 in which the fireproof filler 40 is disposed is outside the partition portion 1, that is, on one fireproof section A side where construction work is performed. Construction work can be completed from the section A side, and construction can be performed in a short time.

  Further, when the fireproof filler 40 is disposed inside the cable rack 3, the fireproof filler 40 is disposed on the opposite side as compared with the case where the fireproof filler 40 is disposed inside the cable rack 3 inside the opening 2. It can prevent accidental dropping to the section B side.

FIG. 7 is a schematic perspective view of a main part illustrating a state in which a heat-expandable fireproof tape is arranged around the cable rack including the folded portion.
It is preferable to dispose a heat-expandable fireproof tape 50 on the folded portions 16 and 26 and around the cable rack 3 because a fireproof section penetration structure having better fire resistance can be formed.
The folded portions 16 and 26 are not shown in FIG. 7 because they are located under the thermally expandable refractory tape 50.

By the way, when the thermally expandable refractory tape 50 is disposed inside the opening 2 around the cable rack 3, when the cable rack is disposed close to the end of the opening 2, Since the work space is not sufficient, it is difficult to arrange the thermally expandable fireproof tape around the cable rack.
On the other hand, in the case of the fireproof compartment penetrating structure of the present invention, as illustrated in FIG. 7, the thermally expandable fireproof tape 50 is disposed around the cable rack 3 positioned outside the partition 1. It is not affected by the deterioration of workability due to the work space as described above.

Next, a fireproof compartment penetration structure which is a second embodiment of the present invention will be described.
FIG. 8 is a schematic cross-sectional view of an essential part for explaining a fire-protection compartment penetration structure that is a second embodiment of the present invention.
As in the case of the first embodiment installed in the fire prevention section A, the fire prevention section penetration structure of the second embodiment is the same as the first thermal expansion fireproof sheet 10 and the first heat expansion section B in the fire prevention section B on the opposite side. Two heat-expandable fireproof sheets 20 are disposed, and a heat-expandable fireproof tape 50 is disposed on the folded portions 16 and 26 and around the cable rack 3. In addition, the meaning of each reference sign in FIG. 8 is the same as that of the case of previous FIGS.

  As exemplified by the fireproof compartment penetration structure of the second embodiment, the fireproof compartment penetration structure of the present invention is a first embodiment having a thermally expandable fireproof sheet on one side of the partition 1. It is not limited, The embodiment which has a thermally expansible fireproof sheet on the both sides of the said partition part 1 may be sufficient. This relationship is the same in the following cases.

Next, a fireproof compartment penetration structure which is a third embodiment of the present invention will be described.
FIG. 9 is a schematic perspective view of a main part illustrating a thermally expandable fireproof sheet used in the third embodiment.
In the case of the first embodiment, two heat-expandable fireproof sheets are used, but in the case of this third embodiment, one heat-expandable fireproof sheet is used.

  As illustrated in FIG. 9A, the thermally expandable refractory sheet 60 is provided with H-shaped cuts indicated by reference numerals 61, 62 and 63. On the other hand, another notch 70 that reaches the H-shaped notch 63 from one side of the thermally expandable fireproof sheet 60 is provided.

  As illustrated in FIG. 9B, a folded portion 71 is formed by bending the end portion 64 of the notch 61 and the end portion 66 of the notch 63 by 90 degrees into an L shape at a position 68 where they are connected. Is done.

  Also, as shown in FIG. 9B, the folded portion is bent by 90 degrees into an L shape at a position 69 where the end portion 65 of the cut portion 61 and the end portion 67 of the cut portion 63 are connected. 72 is formed.

  FIG. 10 is a schematic perspective view of a main part illustrating the relationship between the thermally expandable fireproof sheet and the cable rack in the third embodiment.

  In order to insert the cable rack 3 into the gap formed by the folded portions 71 and 72 of the thermally expandable fireproof sheet 60, for example, before the thermally expandable fireproof sheet 60 is fitted into the cable rack 3, The upper portion 73 of the notch 70 formed in the thermally expandable refractory sheet 60 is pulled toward the front side, and the lower portion 74 is pushed out to the opposite side to create a gap in the thermally expandable refractory sheet. The thermally expandable fireproof sheet may be fitted in the cable rack 3. With respect to the structure illustrated in FIG. 10, the fire protection compartment penetration structure according to the third embodiment can be obtained in the same manner as in the first embodiment.

Next, a fireproof compartment penetration structure which is a fourth embodiment of the present invention will be described.
FIG. 11 is a schematic perspective view of a main part illustrating a thermally expandable fireproof sheet used in the fourth embodiment.
In the case of the first embodiment, two heat-expandable fireproof sheets are used, but in the case of the fourth embodiment, one heat-expandable fireproof sheet is used.

As illustrated in FIG. 11A, the thermally expandable refractory sheet 80 has notches 81 and 82. Illustrated in FIG. 11B by bending the thermally expandable refractory sheet 80 into an L shape at 90 degrees at a position 85 where the end portion 83 of the notch 81 and the end portion 84 of the notch 82 are respectively connected. As described above, the folded portion 86 is formed.
Further, part of the skirt portions 87 and 88 adjacent to the folded portion 86 of the thermally expandable fireproof sheet is folded to form folded skirt portions 89 and 90.

  The lengths of the notches 81 and 82 are adjusted to be equal to the sum of the thickness of the cable rack and the folded width of the folded skirts 89 and 90.

FIG. 12 is a schematic cross-sectional view of a principal part illustrating a fire prevention compartment penetration structure as a fourth embodiment using the thermally expandable fireproof sheet 80.
In the case of the first embodiment, the cable rack penetrates substantially the center of the opening formed in the partition that defines the fire protection compartment, but in the case of the fourth embodiment, The difference is that the upper end of the opening 2 is provided in contact with the ceiling 100 and the cable rack 3 is provided in contact with the ceiling 100.

The thermally expandable fireproof sheet 80 is disposed around the cable rack 3 along the surface of the partition portion 1 that defines a fireproof section, and is formed in the partition portion 1 by the thermally expandable fireproof sheet 80. The entire opening 2 is covered.
The folded portion 86 is attached to the lower surface of the cable rack 3 with a heat-resistant adhesive, and a heat-expandable fireproof tape 50 is further attached to cover the folded portion 86. The thermally expandable fireproof tape covers the cable rack 3 and is also attached to a part of the ceiling 100.

  On the other hand, a folded skirt 90 of the thermally expandable fireproof sheet 80 is fixed to the ceiling 100 by a pin 91 obtained by bending a sticking pin.

FIG. 13 is a schematic perspective view for explaining the sticking pin used in the present invention.
As illustrated in FIG. 13, the sticking pin 92 includes, for example, a circular pedestal 93 and a pin 91, and the pin 91 is vertically provided at the center of the circular pedestal 93. .
A heat resistant adhesive layer 94 and a release film 95 that covers the heat resistant adhesive layer 94 are provided on the back surface of the circular pedestal 93.
After removing the release film 95, the back surface of the circular pedestal 93 is adhered and fixed to the ceiling 100 of FIG. Thereafter, the folded hem portions 89 and 90 of the thermally expandable heat resistant sheet 80 are fixed to the ceiling 100 by passing the folded skirt portions 89 and 90 of the thermally expandable heat resistant sheet through the pin 91 and then bending the pin 91. can do.

  Other configurations are the same as those in the first embodiment.

Next, a fire prevention compartment penetration structure which is a fifth embodiment of the present invention will be described.
FIG. 14 is a schematic perspective view of a main part illustrating a fire prevention compartment penetration structure in which a cable rack passes through an opening formed on the floor.
In the case of the first to fourth embodiments, the cable rack horizontally penetrates the opening formed in the partition wall as the partition portion. However, in the case of the fifth embodiment, the fire protection section is defined. The difference is that the cable rack 3 vertically penetrates the opening 2 formed in the floor 110 as a partitioning portion.

FIG. 15: is a typical principal part sectional drawing which illustrated the cross section which cut | disconnected the said cable rack in the same surface as the upper surface of a floor among the fire prevention division penetration part structures which are 5th embodiments.
As illustrated in FIG. 15, a holding member 112 in which steel wires are combined in a mesh shape is fixed to the parent girders 4 and 4 of the cable rack 3, and a fireproof filler (not shown) is supported by the holding member 112. The fireproof filler can be prevented from falling from between the cable rack 3 and the elongated body 6.
The holding member 112 is not particularly limited, and for example, inorganic boards such as rock wool boards and calcium silicate boards, metal nets such as stainless steel and steel, and metal members such as angles can be used.
The holding member 112 used in the present invention is not particularly limited as long as it can be installed between the cable rack 3 and the long body 6 and can prevent the fireproof filler from dropping.

  The other structure of the fire prevention compartment penetrating part structure which is the fifth embodiment is the same as that of the first embodiment.

Next, a fire prevention compartment penetration structure which is a sixth embodiment of the present invention will be described.
FIG. 16 is a schematic main part perspective view illustrating a thermally expandable fireproof sheet used in the sixth embodiment.
In the case of the first embodiment, one cable rack and two thermally expandable fireproof sheets were used, but in the case of the sixth embodiment, two cable racks and three thermally expandable fireproof sheets were used. The difference is that a sheet is used.
As illustrated in FIG. 16A, the first thermally expandable refractory sheet 10 has cuts 11 and 12.
The second thermally expandable refractory sheet 20 has cuts 21 and 22. The third thermally expandable fireproof sheet 120 has cuts 121 and 122 and cuts 123 and 124.
By bending the portion of the first thermally expandable refractory sheet 10 into an L shape at 90 degrees at a position 15 where the end portion 13 of the notch 11 and the end portion 14 of the notch 12 are respectively connected, a folded portion 16 is obtained. Is formed. Similarly, as illustrated in FIG. 16B, folded portions 131, 132, and 26 are formed.

FIG. 17 is a schematic perspective view for explaining a state in which the first to third thermally expandable fireproof sheets are combined.
As illustrated in FIG. 17, by combining the folded portion 16 of the first thermally expandable fireproof sheet 10 and the folded portion 131 of the third thermally expandable fireproof sheet 120, the first cable rack is A gap 133 for insertion can be formed.

  Since the cuts 11 and 21 and the cuts 12 and 22 are provided at substantially the same width as the long side of the first cable rack cross section, the first thermally expandable fireproof sheet and the second By appropriately sliding the three thermally expandable fireproof sheets in the vertical direction, a gap 133 having a size suitable for inserting the first cable rack can be formed.

  Further, by combining the folded portion 26 of the second thermally expandable refractory sheet 20 and the folded portion 132 of the third thermally expandable refractory sheet 120, a gap 134 for inserting the second cable rack is formed. can do.

  As in the previous case, the second thermal expandable fireproof sheet and the third thermally expandable fireproof sheet are appropriately slid in the vertical direction so that the second cable rack has a size suitable for insertion. A void 134 can be formed.

  The first thermally expandable fireproof sheet 10 and the second thermally expandable fireproof sheet 20 used in the sixth embodiment are respectively the first thermally expandable fireproof sheet used in the first embodiment. 10 and the second heat-expandable fireproof sheet 20, and details are the same as in the case of the first embodiment.

FIG. 18 is a schematic cross-sectional view of a principal part illustrating the structure in which the first to third thermally expandable fireproof sheets are disposed in the opening as being cut along the partition.
As illustrated in FIG. 18, the first thermally expandable fireproof sheet 10 has notches 11 and 12 from one side on the surface side of the first cable rack 3 a on the inner peripheral surface side of the opening 2. ing.

  The second heat-expandable fireproof sheet 120 is cut from one side on the surface side of the second cable rack 3b on the inner peripheral surface side of the opening 2, opposite to the first cable rack 3a. have.

 Further, the third thermally expandable fireproof sheet 120 is spaced from the one side on the surface side of the first cable rack 3a to the one side at an interval of substantially the same width as the long side of the cross section of the first cable rack 3a. And having two notches 121, 124 from the one side in the vertical direction, and a distance substantially equal to the long side of the cross section of the second cable rack 3b from one side on the surface side of the second cable rack 3b. And two cuts 122 and 123 from the one side in a direction perpendicular to the one side.

The arrangement of each thermally expandable refractory sheet with respect to the opening 2 is as follows.
The side of the first thermally expansible fireproof sheet 10 with the folded portion 16 is directed toward the first cable rack 3a, and the first thermally expansible fireproof sheet 10 from above the first cable rack 3a. Is disposed in the opening 2.
The folded portion 16 of the first thermally expandable fireproof sheet 10 can cover the surface of the first cable rack 3a on the inner peripheral surface side of the opening 2.

The side of the second thermally expandable fireproof sheet 20 with the folded portion 26 is directed toward the second cable rack 3b, and the second thermally expandable fireproof from the lower side of the second cable rack 3b. A sheet 20 is disposed in the opening 2.
The folded portion 26 of the second thermally expandable fireproof sheet 20 can cover the surface of the second cable rack 3b on the inner peripheral surface side of the opening 2.

  Further, the side of the third thermally expansible fireproof sheet 120 having the folded portion 131 is directed to the first cable rack 3a, and the side having the folded portion 132 is directed to the second cable rack 3b. Three heat-expandable fireproof sheets 120 are disposed in the portion of the opening 2 between the first cable rack 3a and the second cable rack 3b.

  In this manner, as illustrated in FIG. 18, the first thermally expansible fireproof sheet 10 and the third thermally expansible fireproof sheet 120 are respectively left in the remaining portions other than the folded portions 16 and 131. It can arrange | position so that the said opening part 2 may be covered along the circumference | surroundings of said 1st cable rack 3a by a concave surface. Further, the second heat-expandable fireproof sheet 20 and the third heat-expandable fireproof sheet 120 are connected to the second cable rack 3b by the remaining concave surfaces other than the folded portions 26 and 132, respectively. It can arrange | position so that the said opening part may be covered along circumference | surroundings.

  Thus, the first cable rack 3a can be inserted into the gap formed by the folded portion 16 of the first thermally expandable fireproof sheet 10 and the folded portion 131 of the third thermally expandable fireproof sheet 120. One surface of the first cable rack 3a is covered with the folded portion 16 of the first thermally expandable fireproof sheet 10, and the other surface is covered with the folded portion 131 of the third thermally expandable fireproof sheet 120. be able to.

  Similarly, the second cable rack 3b is inserted through a gap formed by the folded portion 26 of the second thermally expandable fireproof sheet 20 and the folded portion 132 of the third thermally expandable fireproof sheet 120. One surface of the second cable rack 3b is covered with the folded portion 26 of the second thermally expandable refractory sheet 20, and the other surface is folded portion 132 of the third thermally expandable refractory sheet 120. Can be covered.

  Further, the skirt portions 17 and 18 adjacent to the folded portion 16 in the first thermally expandable fireproof sheet 10 and the skirt portion 135 adjacent to the folded portion 131 in the third thermally expandable fireproof sheet 120. , 136 have overlapping portions. Similarly, skirt portions 27 and 28 adjacent to the folded portion 26 of the second thermally expandable fireproof sheet 20 and skirt portion 137 of the third thermally expandable fireproof sheet 120 adjacent to the folded portion 132. , 138 have overlapping portions.

  The skirt 17 and the skirt 135, the skirt 18 and the skirt 136, the skirt 27 and the skirt 137, and the skirt 28 and the skirt 138 are installed to face each other. May be.

  FIG. 19 is a schematic cross-sectional view of an essential part illustrating a cross section of a fire prevention compartment penetration structure that is a sixth embodiment of the present invention. As in the case of FIG. 6, the cable racks 3 a and 3 b and the long body 6 are represented by broken lines for convenience of explanation.

  As illustrated in FIG. 19, the folded portion 16 of the first thermally expandable refractory sheet 10 bent in the horizontal direction with respect to the upper surface of the first cable rack 3a is the upper surface of the first cable rack 3a. Covering.

  The folded portion 131 of the third thermally expandable fireproof sheet 120 bent in the horizontal direction with respect to the lower surface of the first cable rack 3a covers the lower surface of the first cable rack 3a, and The folded portion 132 of the third thermally expandable fireproof sheet 120 bent in the horizontal direction with respect to the upper surface of the second cable rack 3b covers the upper surface of the second cable rack 3b.

  The folded portion 26 of the second thermally expandable fireproof sheet 20 bent in the horizontal direction with respect to the lower surface of the second cable rack 3b covers the lower surface of the cable rack 3b.

  In this manner, the folded portion 16 and the folded portion 131 are folded back to the outside of the partition portion 1 and provided at positions facing each other with the cable rack 3a interposed therebetween. Further, the folded portion 26 and the folded portion 132 are folded back to the outside of the partition portion 1 and provided at positions facing each other across the cable rack 3b.

  A fireproof filler 40 is disposed between the inside of the cable rack 3 a covered by the folded portions 16 and 131 and the long body 6, and the cable rack 3 b covered by the folded portions 26 and 132. A fireproof filler 40 is also disposed between the inside and the elongated body 6.

  As described in the case of the first embodiment with reference to FIG. 7, the thermally expandable fireproof tape 50 is disposed around the folded portions 16, 131 and the first cable rack 3a, and the folded portions 26, It is preferable to arrange a heat-expandable fireproof tape 50 around 132 and the second cable rack 3b.

Next, the fire prevention compartment penetration structure which is the seventh embodiment of the present invention will be described.
FIG. 20 is a schematic perspective view of a main part for explaining a fire-protection section penetrating portion structure according to a seventh embodiment of the present invention.

  In the case of the sixth embodiment, the first to third heat-expandable fireproof sheets and the first to second cable racks were used. In the case of the seventh embodiment, the fourth The difference is that the thermally expandable fireproof sheet 120a and the third cable rack 3c are additionally used. The meanings of the reference numerals in FIG. 20 are the same as those in FIG.

  The configuration of the fourth heat-expandable fireproof sheet 120a illustrated in FIG. 20 is the same as that of the third heat-expandable fireproof sheet 120, and the third heat-expandable sheet according to the sixth embodiment. It can be installed in the opening 2 in the same manner as the fireproof sheet 120.

  The configuration of the third cable rack is the same as that of the second cable rack in the previous sixth embodiment, and is exactly the same as the second thermoexpandable fireproof sheet in the previous sixth embodiment. It can be installed in the opening 2 in the same manner as the folded portions 131a and 132a.

  Similarly, even when the number of cable racks is increased, the fireproof compartment penetration structure of the present invention can be obtained by adding a thermally expandable fireproof sheet.

Next, a description will be given of a fire prevention compartment penetration structure according to an eighth embodiment of the present invention.
FIG. 21 is a schematic cross-sectional view of an essential part for explaining an eighth embodiment of the present invention.
In the case of the previous sixth embodiment, the second cable rack 3b was installed without contacting the end of the opening 2. However, in the case of this eighth embodiment, the second cable rack 3b The difference is that the cable rack 3b is installed in contact with the end of the opening 2.
For this reason, in the case of the eighth embodiment, the second heat-expandable fireproof sheet used in the sixth embodiment is omitted, and instead of the third heat-expandable fireproof sheet 120, a different shape is used. A thermally expandable fireproof sheet 120b is used.

FIG. 22 is a schematic cross-sectional view of an essential part illustrating a state in which the structure in which the thermally expandable fireproof sheet used in the eighth embodiment is disposed in the opening is cut along the partition.
As illustrated in FIG. 22, in the case of the eighth embodiment, a thermally expandable fireproof sheet 120 b is used instead of the third thermally expandable fireproof sheet 120 used in the sixth embodiment. Is different. The heat-expandable fireproof sheet 120b has skirts 137 and 138 adjacent to the folded portion 132 extending to the bottom of the cable rack 3b.
Other configurations are the same as those in the sixth embodiment.

  Thus, according to the fireproof compartment penetration structure of the present invention, it is possible to easily cope with various structures.

Next, the refractory filler used in the present invention will be described.
As the refractory filler used in the present invention, for example, heat-resistant sealing agents such as mortar and cement,
Endothermic inorganic fillers such as aluminum hydroxide and gypsum
Inorganic fiber fillers such as glass wool, rock wool, ceramic wool, gypsum fiber, carbon fiber, stainless steel fiber, slag fiber, silica alumina fiber, alumina fiber, silica fiber, zirconia fiber,
Clay-like fillers comprising organic binders such as polybutene and polybutadiene, inorganic fillers such as gypsum, aluminum hydroxide, magnesium hydroxide, etc., clay-like fillers comprising a thermally expandable refractory resin composition, Fire-resistant putty such as paste filler,
Glass fiber felts, rock wool felts, ceramic wool felts, gypsum fiber felts, carbon fiber felts, slag fiber felts, silica alumina fiber felts, alumina fiber felts, silica fiber felts, zirconia fiber felts and other inorganic fiber felts in the shape of a rectangular parallelepiped Processed inorganic fiber felt block,
An inorganic fiber felt package block in which the inorganic fiber felt block is packaged with a cloth, film, sheet, or the like;
An inorganic fiber package block in which the inorganic fiber filler is wrapped with a cloth, film, sheet, or the like;
A thermally expandable refractory material block formed by molding the thermally expandable refractory resin composition into a rectangular parallelepiped shape,
Heat of heat-expandable refractory material-containing foam, such as polyurethane foam, polyethylene foam, polypropylene foam, polystyrene foam, ethylene-vinyl acetate copolymer foam, etc. Expandable refractory material containing foam block,
A thermally expandable refractory small piece-containing inorganic fiber package block in which a small piece of a thermally expandable refractory material is wrapped with a cloth, film, sheet, etc. together with an inorganic fiber filler such as rock wool,
Examples thereof include a filling bag containing small pieces such as a heat-expandable refractory material.

Of these, fire-resistant putty,
A filling bag containing small pieces of the thermally expandable refractory material,
The inorganic fiber felt block, the inorganic fiber felt package block, the inorganic fiber package block, the thermally expandable refractory block, the thermally expandable refractory piece-containing foam block, the thermally expandable refractory piece containing inorganic fiber package Fireproof blocks such as body blocks,
Is preferred.
It is also preferable to use at least two of the refractory putty, the filling bag containing small pieces of the thermally expandable refractory material, and the refractory block.

Here, the filling bag used in the present invention will be described.
The filling bag has at least a small piece (1) and a small piece (2) of a thermally expandable refractory material.
Further, the filling bag has a small piece (1), a wrapping material (3) for wrapping the small piece (2) of the thermally expandable refractory material and the like.

First, the small piece (1) used in the present invention will be described.
As small pieces used in the present invention, for example, inorganic rock pieces such as granular rock wool, granular glass, granular ceramic, granular alumina, granular silica alumina,
Flexible foams such as polyurethane foam, polyethylene foam, polypropylene foam, polystyrene foam, ethylene-vinyl acetate copolymer foam,
Can be mentioned.

The small piece is preferably an inorganic piece, and among these, granular rock wool is preferred because of its excellent handleability.
Further, the polyurethane foam is preferable because it is easy to make a single molded body after finely cutting off the end material of the polyurethane foam, molding defects, and the like.

  The said small piece can use 1 type, or 2 or more types.

Since the flexible foam can be easily deformed, the entire filling bag can be given flexibility and resilience, and easily placed in the gap between the cable rack and the elongated body. can do.
The manufacturing method of the said flexible foam is well-known, and there is no limitation in particular in the manufacturing method of the said foam used for this invention.

  As the raw material resin for the flexible foam, for example, in the case of the polyurethane foam, a two-component polyurethane raw material comprising a component containing water and a hydrophilic polyol compound and a component containing a polyisocyanate compound And a one-component type polyurethane raw material in which water is reacted with an aqueous urethane polymer.

  In addition to the polyurethane raw material, the flexible foam raw material resin includes the polyethylene, polypropylene, polystyrene, ethylene-vinyl acetate copolymer, and the like.

  After stirring these raw material resins, foaming agents, cross-linking agents, etc. with a mixer to obtain a uniform resin composition, the foaming agent can be obtained by heating the resin composition under pressure using a mold press or the like. Causes foaming. Thus, the flexible foam can be obtained by foam-molding these raw material resins and the like.

  The flexible foam thus obtained can be made into small pieces through appropriate steps such as cutting and pulverization.

  The flexible foam used in the present invention is preferably one having an average particle diameter in the range of 0.1 to 50 mm, more preferably one having an average particle diameter in the range of 0.5 to 30 mm. More preferably, the average particle diameter is in the range of 1 to 20 mm.

Next, the small piece (2) of the said heat-expandable refractory material used for this invention is demonstrated.
The small piece of the heat-expandable refractory material means, for example, one having a relatively small shape among the molded bodies made of the heat-expandable refractory material, specifically, the average particle size is 0.1 to 10 mm. The average particle diameter is preferably in the range of 0.5 to 5 mm, more preferably in the range of 2 to 4 mm.

Examples of the shape of the small piece of the heat-expandable refractory material include a powder shape, a strip shape, a flake shape, a pellet shape, a flake shape, and a flat plate shape. These shapes do not necessarily need to be uniform, and can contain irregular shapes.

  Moreover, the small piece of the said heat-expandable refractory material can use 1 type, or 2 or more types.

Next, the thermally expandable refractory material used in the present invention will be described.
The heat-expandable refractory material is specifically composed of a heat-expandable refractory resin composition containing a resin component such as a thermoplastic resin or an epoxy resin, a heat-expandable layered inorganic material, a phosphorus compound, an inorganic filler, and the like. The thing etc. can be mentioned.
Of the components of the thermally expandable refractory resin composition, the resin component will be described first.

Examples of the thermoplastic resin include polypropylene resins, polyethylene resins, poly (1-) butene resins, polyolefin resins such as polypentene resins, polystyrene resins, acrylonitrile-butadiene-styrene (ABS) resins, Synthetic resins such as polycarbonate resin, polyphenylene ether resin, acrylic resin, polyamide resin, polyvinyl chloride resin, phenol resin, polyurethane resin, polyisobutylene,
Natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, acrylic rubber, epichlorohydrin rubber, multiple addition Examples thereof include rubber materials such as vulcanized rubber, non-vulcanized rubber, silicon rubber, fluorine rubber, and urethane rubber.

  These synthetic resins and / or rubber substances can be used alone or in combination of two or more.

  Among the synthetic resins and / or rubber substances, halogenated ones are preferable in that they are highly flame retardant per se and are crosslinked by heat dehalogenation reaction to improve the strength of the residue after heating. .

  Among these synthetic resins and / or rubber substances, those having soft and rubbery properties are preferable. Those having such properties can be highly filled with an inorganic filler, and the resulting resin composition is flexible and easy to handle.

  In order to obtain a more flexible and easy-to-handle resin composition, non-vulcanized rubber and polyethylene resin are preferably used.

  Examples of the polyethylene resin include an ethylene homopolymer, a copolymer of ethylene and other α-olefin mainly composed of ethylene, a copolymer of ethylene and a monomer other than α-olefin, and a copolymer thereof. Examples thereof include a polymer and a mixture of polymers.

  Examples of the α-olefin in the ethylene-based copolymer of ethylene and other α-olefin include 1-hexene, 4-methyl-1-pentene, 1-octene, 1-butene, 1- Examples include pentene.

  Examples of the copolymer of ethylene and a monomer other than α-olefin include an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, and an ethylene-methacrylate copolymer.

Examples of the ethylene homopolymer or a copolymer of ethylene and another α-olefin include those polymerized using, for example, a Ziegler-Natta catalyst, a vanadium catalyst, a metallocene compound containing a tetravalent transition metal, or the like as a polymerization catalyst. Among them, a polyethylene resin obtained using a metallocene compound containing a tetravalent transition metal as a catalyst is preferable.

  The synthetic resins and / or rubber substance may be further subjected to crosslinking or modification within a range not impairing the fire resistance of the thermally expandable refractory material in the present invention.

  There are no particular limitations on the timing of crosslinking or modifying the synthetic resins and / or rubber substances, and the synthetic resins and / or rubber substances that have been previously crosslinked and modified may be used. When blending other components such as a filler, crosslinking or modification may be performed simultaneously.

  Moreover, after mix | blending another component with the said synthetic resins and / or rubber substance, you may bridge | crosslink or modify | denature, The said bridge | crosslinking and modification | denaturation may be performed in any step.

  The crosslinking method is not particularly limited, and can be carried out by a crosslinking method that is usually performed for the synthetic resins and / or rubber substances. For example, a crosslinking method using various crosslinking agents, peroxides, and the like, and a crosslinking method by electron beam irradiation are included.

  Further, among the resin components used in the present invention, the epoxy resin shown above is not particularly limited, and examples thereof include resins obtained by reacting a monomer having an epoxy group with a curing agent. it can.

  Examples of the monomer having an epoxy group include, as a bifunctional glycidyl ether type, a polyethylene glycol type, a polypropylene glycol type, a neopentyl glycol type, a 1,6-hexanediol type, a trimethylolpropane type, and a propylene oxide-bisphenol A. And monomers such as hydrogenated bisphenol A type, bisphenol A type, and bisphenol F type.

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

Further, examples of the polyfunctional glycidyl ether type include monomers such as phenol novolac type, orthocresol type, DPP novolac type, dicyclopentadiene, and phenol type.

  These can use 1 type, or 2 or more types.

Examples of the curing agent include a polyaddition type curing agent and a catalyst type curing agent.
Examples of the polyaddition type curing agent include polyamines, acid anhydrides, polyphenols, polymercaptans, and the like.

Examples of the catalyst-type curing agent include tertiary amines, imidazoles, and Lewis acid complexes.
The method for curing these epoxy resins is not particularly limited, and can be performed by a known method.

  In addition, what adjusted the melt viscosity of the said resin component, a softness | flexibility, adhesiveness, etc. can use what blended 2 or more types of resin components.

Next, among the components of the resin composition, the thermally expandable layered inorganic material will be described.
The heat-expandable layered inorganic material expands when heated, but the heat-expandable layered inorganic material is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite.

The thermally expandable graphite is a conventionally known substance, and powders such as natural scaly graphite, pyrolytic graphite, quiche graphite, etc., inorganic acid such as concentrated sulfuric acid, nitric acid, selenic acid, concentrated nitric acid, perchloric acid, A graphite intercalation compound is produced by treatment with a strong oxidant such as perchlorate, permanganate, dichromate, dichromate, hydrogen peroxide, etc., maintaining the layered structure of carbon It is a kind of crystalline compound as it is.

  The heat-expandable graphite obtained by acid treatment as described above is preferably further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.

  Examples of the aliphatic lower amine include monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, and butylamine.

  Examples of the alkali metal compound and the alkaline earth metal compound include hydroxides such as potassium, sodium, calcium, barium, and magnesium, oxides, carbonates, sulfates, and organic acid salts.

  The thermal expandable graphite preferably has a particle size in the range of 20 to 200 mesh.

  When the particle size is smaller than 20 mesh, the degree of expansion of graphite is small, and it is difficult to obtain a sufficient fireproof heat insulating layer. When the particle size is larger than 200 mesh, there is an advantage that the degree of expansion of graphite is large. When kneading with a resin or an epoxy resin, the dispersibility is deteriorated and the physical properties are liable to be lowered.

  Examples of commercially available neutralized thermally expandable graphite include “GRAFGUARD # 160”, “GRAFGUARD # 220” manufactured by UCAR CARBON, and “GREP-EG” manufactured by Tosoh Corporation.

  Next, the said inorganic filler is demonstrated among each component of the above-mentioned thermally expansible fireproof resin composition.

  The inorganic filler is not particularly limited. For example, silica, diatomaceous earth, alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, hydroxide Magnesium, aluminum hydroxide, basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dosonite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, potassium silicate and other potassium salts, talc, clay, Mica, montmorillonite, bentonite, activated clay, ceviolite, imogolite, sericite, glass fiber, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon bal , Charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, inorganic phosphorus Compound, silica alumina fiber, alumina fiber, silica fiber, zirconia fiber and the like can be mentioned.

  These can use 1 type, or 2 or more types.

  The said inorganic filler plays the role of an aggregate and contributes to the improvement of the expansion | swelling heat insulation layer produced | generated after a heating, and the increase in a heat capacity.

  For this reason, a calcium carbonate, a metal carbonate represented by zinc carbonate, an aluminum hydroxide that gives an endothermic effect during heating in addition to an aggregate role, and a water-containing inorganic material represented by magnesium hydroxide are preferred. An earth metal and a metal carbonate of the periodic table IIb or a mixture of these with the water-containing inorganic substance are preferable.

  Moreover, a phosphorus compound is used in order to improve a flame retardance.

  The phosphorus compound is not particularly limited. For example, red phosphorus; various phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate; sodium phosphate And metal phosphates such as potassium phosphate and magnesium phosphate; ammonium polyphosphates; compounds represented by Chemical Formula 1;

  These phosphorus compounds can be used alone or in combination of two or more.

  Among these, from the viewpoint of fire resistance, red phosphorus, a compound represented by the following chemical formula, and ammonium polyphosphates are preferable, and ammonium polyphosphates are more preferable in terms of performance, safety, cost, and the like.

In the above chemical formula, R ₁ and R ₃ represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms.

R ₂ 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, or carbon. The aryloxy group of Formula 6-16 is represented.

  Examples of the compound represented by the chemical formula include methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-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, diethylphenylphosphinic acid , Diphenylphosphinic acid, bis (4-methoxyphenyl) phosphinic acid and the like.

  Among them, t-butylphosphonic acid is preferable in terms of high flame retardancy although it is expensive.

  The ammonium polyphosphates are not particularly limited, and examples include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferred from the viewpoint of flame retardancy, safety, cost, and handleability. Used.

  Examples of commercially available products include “trade name: EXOLIT AP422” and “trade name: EXOLIT AP462” manufactured by Clariant.

It is considered that the phosphorus compound reacts with metal carbonates such as calcium carbonate and zinc carbonate to promote the expansion of the metal carbonate. In particular, when ammonium polyphosphate is used as the phosphorus compound, a high expansion effect is obtained. can get.
It also acts as an effective aggregate and forms a highly shape-retaining residue after combustion.

  When the inorganic filler used in the present invention is granular, the particle size is preferably in the range of 0.5 to 200 μm, more preferably in the range of 1 to 50 μm.

  When the amount of the inorganic filler added is small, the dispersibility greatly affects the performance, so that a small particle size is preferable. However, if the particle size is less than 0.5 μm, secondary aggregation occurs and the dispersibility may deteriorate. is there.

  In addition, when the amount of inorganic filler added is large, the viscosity of the resin composition increases and moldability decreases as high filling proceeds, but the viscosity of the resin composition is decreased by increasing the particle size. From the point of being able to do, the thing with a large particle size is preferable among the said range.

  In addition, when a particle size exceeds 200 micrometers, the surface property of a molded object and the mechanical physical property of a resin composition may fall.

  Among the above inorganic fillers, metal carbonates such as calcium carbonate and zinc carbonate that play an aggregate role in particular; water-containing inorganic substances such as aluminum hydroxide and magnesium hydroxide that give an endothermic effect when heated in addition to the role as an aggregate Is preferred.

  It is considered that the combined use of the hydrated inorganic substance and the metal carbonate greatly contributes to improving the strength of the combustion residue and increasing the heat capacity.

  Among the inorganic fillers, in particular, water-containing inorganic substances such as aluminum hydroxide and magnesium hydroxide are endothermic due to the water generated by the dehydration reaction during heating, and the temperature rise is reduced and high heat resistance is obtained. This is preferable in that the oxide remains as a combustion residue and this acts as an aggregate to improve the strength of the combustion residue.

  Magnesium hydroxide and aluminum hydroxide have different temperature ranges that exhibit dehydration effects, so when used together, the temperature range that exhibits dehydration effects becomes wider, and more effective temperature rise suppression effects can be obtained. It is preferable to do.

When the particle size of the water-containing inorganic substance is small, the bulk increases and it becomes difficult to achieve high filling. Therefore, in order to increase the dehydration effect, a large particle size is preferable.
Specifically, it is known that when the particle size is 18 μm, the filling limit amount is improved by about 1.5 times compared to the particle size of 1.5 μm.
Further, by combining a large particle size and a small particle size, higher packing can be achieved.

  As a commercial item of the said water-containing inorganic substance, for example, as aluminum hydroxide, “trade name: Hygielite H-42M” (manufactured by Showa Denko) with a particle diameter of 1 μm, “trade name: Hygilite H-31 with a particle diameter of 18 μm”. (Made by Showa Denko KK) and the like.

  Examples of commercially available calcium carbonate include “trade name: Whiten SB red” (manufactured by Shiraishi Calcium Co., Ltd.) having a particle size of 1.8 μm, and “trade name: BF300” (manufactured by Bihoku Flour & Chemical Co., Ltd.) having a particle size of 8 μm. Etc.

  As explained at the beginning, as the thermally expandable refractory material used in the present invention, the resin composition containing the resin component such as the thermoplastic resin and epoxy resin described above, the thermally expandable layered inorganic material, the inorganic filler, etc. Although what consists of a thing etc. can be mentioned, Next, these compounding is demonstrated.

The resin composition contains 20 to 350 parts by weight of the thermally expandable layered inorganic substance and 50 to 400 parts by weight of the inorganic filler with respect to 100 parts by weight of the resin component such as the thermoplastic resin or epoxy resin. Those are preferred.
The total of the thermally expandable layered inorganic material and the inorganic filler is preferably in the range of 200 to 600 parts by weight.

  Such a resin composition expands by heating to form a refractory heat insulating layer. According to this composition, the thermally expandable refractory material expands by heating such as a fire, and can obtain a necessary volume expansion coefficient. After expansion, a residue having a predetermined heat insulation performance and a predetermined strength is formed. It is also possible to achieve stable fireproof performance.

If the amount of the layered inorganic material is less than 20 parts by weight, the expansion ratio may be insufficient, and sufficient fire resistance and fire prevention performance may not be obtained.
On the other hand, if the amount of the layered inorganic substance exceeds 350 parts by weight, the strength as a molded product may not be obtained because the pseudo-collecting force is insufficient.
Further, if the amount of the inorganic filler is less than 50 parts by weight, the remaining volume after combustion decreases, so that a sufficient refractory heat insulating layer may not be obtained.
Furthermore, since the ratio of combustible material increases, flame retardancy may decrease.

  On the other hand, when the amount of the inorganic filler exceeds 400 parts by weight, the blending ratio of the resin component decreases, so that the cohesive force is insufficient and it is difficult to obtain strength as a molded product.

  If the total amount of the thermally expandable layered inorganic substance and the inorganic filler in the resin composition is less than 200 parts by weight, the amount of residue after combustion is insufficient and it is difficult to obtain sufficient fire resistance. Deterioration of physical properties may increase and it may become unusable.

  Furthermore, the thermally expandable refractory resin composition used in the present invention is a range that does not impair the object of the present invention, and if necessary, in addition to antioxidants such as phenol-based, amine-based, sulfur-based, etc. An additive such as an inhibitor, an antistatic agent, a stabilizer, a crosslinking agent, a lubricant, a softener, a pigment, and a tackifier resin, and a tackifier such as a polybutene and a petroleum resin can be included.

Next, the manufacturing method of the said thermally expansible fireproof resin composition is demonstrated.
The method for producing the thermally expandable refractory resin composition is not particularly limited. For example, when the resin component contained in the thermally expandable refractory resin composition is a thermoplastic resin, the thermally expandable refractory resin composition Each component of the product is supplied to a known kneading apparatus such as an extruder, Banbury mixer, kneader mixer and melt-kneaded, or each component of the thermally expandable refractory resin composition is suspended in an organic solvent or heated. The thermally expandable refractory resin composition can be obtained by a method such as melting to form a paint, or dispersing in a solvent to prepare a slurry.

  Further, when the resin component contained in the thermally expandable refractory resin composition is the epoxy resin, for example, the thermally expandable refractory resin composition is suspended in an organic solvent, or heated and melted. The thermally expandable refractory resin composition by a method such as a paint-like method by dispersing in a solvent to prepare a slurry, or a method of melting the thermally expandable refractory resin composition under heating Can be obtained.

   The heat-expandable refractory resin composition is obtained by kneading the above components using a known apparatus such as a single screw extruder, a twin screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a reiki machine, or a planetary stirrer. Can be obtained.

  Further, it is also possible to knead the filler separately into the monomer having an epoxy group and the curing agent and knead with a static mixer, a dynamic mixer or the like immediately before molding.

  By the method described above, the thermally expandable refractory material used in the present invention can be obtained.

  The heat-expandable refractory material is available as a commercial product. For example, a fire barrier manufactured by Sumitomo 3M Limited (a heat-expandable refractory material comprising a resin composition containing chloroprene rubber and vermiculite, expansion ratio: 3 times) , Thermal conductivity: 0.20 kcal / m · h · ° C., Mitsuji Metal Paint Co., Ltd., medium-cut (thermally expandable refractory material comprising a resin composition containing polyurethane resin and thermally expandable graphite, expansion coefficient: 4 times, Thermal conductivity: 0.21 kcal / m · h · ° C., and thermally expandable refractory materials such as Sekisui Chemical Co., Ltd. Fiblock (thermally expandable refractory material including butyl rubber).

The heat-expandable refractory material is not particularly limited as long as it is thermally insulated by the expanded layer when exposed to a high temperature such as a fire, and has the strength of the expanded layer, but heating conditions of 50 kW / m ² It is preferable if the volume expansion coefficient after heating for 30 minutes is 3 to 50 times. If the volume expansion rate is less than 3 times, the expansion volume may not be able to fully fill the burned-out portion of the resin component, and fireproof performance may be reduced. On the other hand, if it exceeds 50 times, the strength of the expansion layer is lowered, and the effect of preventing the penetration of the flame may be lowered. More preferably, the volume expansion coefficient is in the range of 5 to 40 times, and more preferably in the range of 8 to 35 times.

In order for the expansion layer to be self-supporting, the expansion layer needs to have a high strength. As the strength, the sample of the expansion layer is set to 0 using a 0.25 cm ² indenter in a compression tester. It is preferable that the stress at break when measured at a compression speed of 0.1 m / s is 0.05 kgf / cm ² or more. If the stress at break is less than 0.05 kgf / cm ² , the adiabatic expansion layer may not be self-supporting and the fireproof performance may be reduced. More preferably, it is 0.1 kgf / cm ² or more.

  The thermally expandable refractory material pieces used in the present invention are a method of pulverizing a molded product obtained by processing the thermally expandable refractory material into a sheet or molded product, and the thermally expandable refractory material into a sheet or molded product. A method of cutting a molded product obtained by processing into a product, a method of using an end material obtained when processing the thermally expandable refractory material into a sheet or a molded product, a method of pulverizing the end material, etc. It can be obtained by a method of cutting the end material or the like.

  These methods can be carried out singly or in combination of two or more.

  As the small piece of the heat-expandable refractory material, it is preferable to use a piece that has been subjected to a sizing operation to make the particle diameter uniform.

  The filling bag used in the present invention may contain an inorganic filler in addition to the small piece and the thermally expandable refractory material.

Examples of such inorganic fillers include inorganic powder fillers and inorganic fiber fillers.
Examples of the inorganic powder filler include calcium hydroxide, aluminum hydroxide, magnesium hydroxide, gypsum and the like.
Examples of the inorganic fiber filler include glass wool, rock wool, ceramic wool, gypsum fiber, carbon fiber, stainless steel fiber, slag fiber, silica alumina fiber, alumina fiber, silica fiber, and zirconia fiber.

Next, the wrapping material (3) for wrapping the small piece (1) and the small piece (2) of the thermally expandable refractory material will be described.
Examples of such a packaging material include cloth, film, and sheet.

  As said cloth, what consists of woven fabrics and nonwoven fabrics, such as cotton, silk, nylon, polyester, a polypropylene, etc. can be mentioned, for example.

  As said film, a polyethylene film, a polypropylene film, a polyethylene terephthalate film etc. can be mentioned, for example.

  Examples of the sheet include an aluminum foil, an aluminum glass cloth, an inorganic glass cloth, and a ceramic sheet.

  The said packaging material can use 1 type, or 2 or more types.

Next, the details of the filling bag used in the present invention will be described.
As described above, the filling bag is for wrapping the small piece (1) and the small piece (2) of the thermally expandable refractory material, the small piece (1) and the small piece (2) of the thermally expandable refractory material, and the like. It has at least a packaging material (3).

FIG. 23 is a schematic perspective view illustrating a filling bag used in the present invention.
As illustrated in FIG. 23, a small piece 300 of polyurethane foam and a small piece of the thermally expandable refractory material 400 are accommodated in a polyethylene bag 200. Although not shown in particular, in addition to the polyurethane foam small piece 300 and the small piece of the heat-expandable refractory material 400, the inorganic fiber filler described above can be accommodated.

  The end portion of the polyethylene bag 200 is attached by means of an adhesive, a means of fusion, or the like after accommodating the small piece 300 of the polyurethane foam and the small piece of the thermally expandable refractory material 400.

The volume of the packaging material (3) is usually in the range of 10 to 2000 cm ^3, preferably in the range of 100～1500Cm ^3.

  The total volume of the small piece (1) and the small piece (2) of the thermally expandable refractory material housed in the packaging material (3) is usually in the range of 5 to 80% with respect to the volume of the packaging material. It is preferably in the range of 10 to 70%, more preferably in the range of 20 to 60%.

  The volume ratio between the small piece (1) and the small piece (2) of the thermally expandable refractory is usually in the range of 1: 1 to 1000: 1, and is in the range of 1: 1 to 100: 1. A range of 1: 1 to 10: 1 is more preferable.

  As illustrated in FIG. 23, the polyethylene bag 200 contains a polyurethane foam piece 300 and a thermally expandable refractory material 400 piece, which is compared with the volume of the polyethylene bag 200. The total volume of these pieces is small.

  For this reason, the filling bag can be freely folded, for example, or can be freely deformed into a shape close to a spherical shape, a columnar shape, a rectangular parallelepiped shape, or the like. In this way, the filling bag can be deformed freely according to the external force.

  In addition, as the filling bag, for example, a bag that requires an external force in order to maintain a certain shape can be used.

  When a bag that requires an external force is used to maintain a certain shape, the filling bag has a substantially flat shape when placed on a flat surface, and a substantially spherical shape when placed on a spherical surface. The shape can be freely deformed, for example, a shape along the curved surface can be obtained.

Although not particularly illustrated, the filling bag is preferably provided with an air inlet / outlet hole.
The shape of the air inlet / outlet hole is not particularly limited as long as the contents of the filling bag do not flow out to the outside. For example, in addition to a circular shape, an elliptical shape, a polygonal shape, etc. It may be a thing.
As the shape of the air inlet / outlet hole, one type or two or more types can be adopted.

  In addition, it is preferable to provide a plurality of the air inlet / outlet holes so that the air in the filling bag can quickly escape to the outside when the filling bag is compressed.

FIG. 24 is a schematic perspective view illustrating a modification of the filling bag used in the present invention.
As illustrated in FIG. 24, in the filling bag, two nonwoven fabrics 500 are overlapped, and a polyurethane foam piece 300 and a thermally expandable refractory material 400 piece are accommodated between the nonwoven fabrics. ing.

  The non-woven fabrics 500 are adhered to each other by a joining means such as heat sealing. Reference numeral 600 exemplifies a portion attached by heat sealing.

  The non-woven fabric allows air to pass therethrough, and the internal air is promptly extracted to the outside through a gap between the non-woven fabrics.

FIG. 25 is a schematic perspective view illustrating a modification of the filling bag used in the present invention.
As illustrated in FIG. 25, the filling bag having two or more packaging materials can be used.
A connecting portion 220 for connecting the packaging materials 210 to each other is provided at a boundary between the packaging materials 210 adjacent to each other.

FIG. 26 is a schematic perspective view of a main part illustrating a modified example of the connecting part 220.
The connecting portion 220 is provided with a breaking line 230 exemplified by a broken line in FIG. 26A as a dividing means so that the other packaging material 210b can be separated from the other packaging material 210a. .

As another dividing means, a notch 240 illustrated in FIG. 26B is provided in the connecting portion 220 so that the other packaging material 210b can be similarly separated from the other packaging material 210a. It has become.
As described above, the filling bag used in the present invention can be arranged by folding a large number of connected bags.

Next, the fireproof block used in the present invention will be described.
The shape of the fireproof block used in the present invention is, for example, a cross section of a rectangle, a square, etc., and the length of one side of the cross section is in the range of 10-50 mm, and the length in the longitudinal direction is 100- Although the rectangular parallelepiped of the range of 300 mm etc. are mentioned, the shape of the said fireproof block can be suitably selected according to the structure of the fire prevention division penetration part structure, etc. to construct.
The refractory block is preferably a rectangular parallelepiped having a square with a side length of 15 to 20 mm.

27 to 31 show specific examples of fireproof blocks.
27 illustrates an inorganic fiber felt package block, FIG. 28 illustrates an inorganic fiber package block, FIG. 29 illustrates a thermally expandable refractory block, and FIG. 30 illustrates a thermally expandable refractory piece-containing foam. The block is illustrated, and FIG. 31 is a schematic perspective view of the main part illustrating the thermally expandable refractory piece-containing inorganic fiber package block.

  The inorganic fiber felt 701 included in the inorganic fiber felt package block 700 illustrated in FIG. 27 cuts, for example, an inorganic fiber felt fabric having a thickness of 10 to 30 mm obtained by forming the inorganic fiber filler into a flat shape. Is obtained as a rectangular parallelepiped shape.

The fire-resistant block used in the present invention is preferably packaged by the packaging material described above.
As the packaging material, a cloth, a film, a sheet, or the like can be used as in the case described above.
In the case illustrated in FIG. 27, the inorganic fiber felt 700 is packaged with a polyethylene film 702. Since the inorganic fiber felt 701 can be prevented from falling off from the inorganic fiber felt 701 by wrapping the inorganic fiber felt 701 with a packaging material such as a polyethylene film 702, the inorganic fiber felt 701 is made of a packaging material such as the polyethylene film 702. It is preferable to package.

  An inorganic fiber package block 710 illustrated in FIG. 28 is obtained by packaging an inorganic fiber filler 711 with a polyethylene terephthalate nonwoven fabric 712 (illustrated as transparent for convenience of explanation) or the like, and the shape thereof is the above-described inorganic fiber. The same as the felt package block 700. By packaging the inorganic fiber filler 711 with a packaging material such as polyethylene terephthalate nonwoven fabric 712, handling becomes easy, and scattering of the inorganic fiber filler 711 can be prevented.

  A thermally expandable refractory material block 720 illustrated in FIG. 29 is formed by molding the previously described thermally expandable refractory resin composition into the same shape as the inorganic fiber felt package block 700 illustrated in FIG. is there.

  The thermally expandable refractory piece-containing foam block 730 illustrated in FIG. 30 is formed by molding a thermally expandable refractory piece 732 together with the foam 731, and the shape thereof is the inorganic fiber felt illustrated in FIG. It is the same as the package block 700.

  The thermally expandable refractory piece-containing inorganic fiber package block 740 illustrated in FIG. 31 is made of a polypropylene nonwoven fabric 743 (for convenience of explanation, a transparent nonwoven fabric 743 together with an inorganic fiber-based filler 741 such as rock wool. The shape is the same as that of the inorganic fiber felt package block 700 illustrated in FIG.

FIG. 32 is a schematic perspective view illustrating the shape of a refractory block used in the present invention.
The shape of the refractory block used in the present invention is not limited to the rectangular parallelepiped 800 in FIG. 31A, and for example, the triangular prism 801 illustrated in FIG. 31B and the shape illustrated in FIG. A polygonal column shape such as a hexagonal column 802 may be used.
The shape of the refractory block is preferable as long as it can pack the inside of the cable rack without gap when combined.

The fireproof block used in the present invention is a combination of two or more fireproof blocks.
FIG. 33 and FIG. 34 are schematic perspective views illustrating a state in which two or more pieces of the thermally expandable refractory material-containing inorganic fiber package block 740 are combined as a specific example.
The refractory block used in the present invention preferably has a sticky outer surface.
Means for imparting adhesiveness to the outer surface of the refractory block include means for imparting adhesiveness from the outside of the refractory block, such as applying an adhesive to the outer surface of the refractory block, and adhesive to the refractory block itself. Examples include means for imparting tackiness from the inside of a fireproof block such as molding after adding a component having a property.
An adhesive for imparting adhesiveness is applied to the outer surface of the thermally expandable refractory piece-containing inorganic fiber package block 740 illustrated in FIG. 33, and the thermally expandable refractory piece-containing inorganic fiber package body. The blocks 740 are detachably coupled.

  For example, even when both ends of the combination 744 of the thermally expandable refractory material containing inorganic fiber package block 740 are held and transported by hand, the combination 744 of the thermally expandable refractory material containing inorganic fiber package block 740 is By using a pressure-sensitive adhesive that does not collapse, the combination 744 of the thermally expandable refractory material-containing inorganic fiber package block 740 can be handled as a single unit.

Further, as illustrated in FIG. 34, it is also possible to remove individual thermally expandable refractory material pieces-containing inorganic fiber package blocks 740 from the combination 744 of the thermally expandable refractory material pieces-containing inorganic fiber package blocks 740. .
At this time, for example, when the individual thermally expandable refractory piece-containing inorganic fiber package block 740 is removed from the combination 744 of the thermally expandable refractory piece-containing inorganic fiber package block 740, the thermally expandable refractory material is obtained. The adhesive which has adhesiveness of the grade which the adhesive surface of small piece containing inorganic fiber package block 740 is not destroyed is used. Thereby, each said thermally expansible fireproof material piece containing inorganic fiber package block corresponding to the position of the elongate body which penetrates the inside of a cable rack from the combination 744 of the said thermally expandable fireproof material piece containing inorganic fiber package block 740 740 can be easily removed, and the combination 744a of the thermally expandable refractory material-containing inorganic fiber package block 740 can be installed in the cable rack described above.
Since the thermally expandable refractory piece-containing inorganic fiber package block 740 has flexibility, the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block 740 can be easily arranged in the cable rack. .

As the combination 744 of the thermally expandable refractory piece-containing inorganic fiber package block 740 illustrated in FIG. 33, for example, if two types of widths of 20 cm and 30 cm are prepared, the width inside the cable rack is 40 cm. In the case of the above, it is possible to cope by preparing two combinations 744 of the thermally expandable refractory piece-containing inorganic fiber package block 740 having an overall width of 20 cm, and the width inside the cable rack is 50 cm. Can be dealt with by preparing each combination 744 of the thermally expandable refractory material-containing inorganic fiber package block 740 having an overall width of 20 cm and 30 cm.
When the width inside the cable rack changes every 10 cm, the combination 744 of the thermally expandable refractory material piece-containing inorganic fiber package block 740 can be appropriately selected as described above.
Further fine adjustments can be made by increasing or decreasing the number of the individual thermally expandable refractory piece-containing inorganic fiber package blocks 740.

FIG. 35 is a schematic perspective view showing a modified example of the combination 744 a of the thermally expandable refractory material-containing inorganic fiber package block 740.
In the case of the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block 740, the combination 744a is configured by sticking all the thermally expandable refractory piece-containing inorganic fiber package blocks 740 in the same direction. However, the combination 744b of the thermally expandable refractory material-containing inorganic fiber package block 740 illustrated in FIG. 35 is the outermost heat expandable refractory on the side in contact with the long body in the cable rack. The small piece-containing inorganic fiber package block 740 is arranged so as to be orthogonal to the other thermally expandable refractory small piece-containing inorganic fiber package block 740.

Of the thermally expandable refractory material pieces-containing inorganic fiber package block 740 on the outermost surface, the thermally expandable refractory material pieces-containing inorganic fiber package block 740 at a position corresponding to the cross member in the cable rack Since the gap 750 for accommodating the cross member of the cable rack is formed in the combination 744b of the thermally expandable refractory piece-containing inorganic fiber package block 740, the heat can be easily put into the cable rack. A combination 744b of inflatable refractory piece-containing inorganic fiber package block 740 can be placed.
Moreover, the strength of the entire combination 744b of the thermally expandable refractory material-containing inorganic fiber package block 740 can be increased by combining the thermally expandable refractory material piece-containing inorganic fiber package blocks 740 at right angles. It is possible to improve the handleability during construction.

In the case of FIG. 35, the case of removing the thermally expandable refractory piece-containing inorganic fiber package block 740 on the outermost surface has been described, but according to the size of the cross member of the cable rack, the second layer from the bottom, You may use what removed the said thermally expansible fireproof material small piece containing inorganic fiber package block 740 of the 3rd layer suitably.
The combination 744b of the thermally expandable refractory piece-containing inorganic fiber package block 740 is provided with a gap 760 for inserting a long body. The position and size of the gap 760 are the same as the long length. It can be appropriately changed according to the position and shape of the body.

Moreover, the combination 744 of the said thermally expansible fireproof material piece containing inorganic fiber package block 740 may equip the outer periphery with a support.
Examples of the support include an adhesive tape 745 illustrated in FIG. 36A, a strip-shaped connector 746 illustrated in FIG. 36B, and a frame 747 illustrated in FIG. 36C and a connector. 748 and the like.
Examples of the adhesive tape 745 include a commercially available adhesive paper tape, an adhesive cloth tape, and an adhesive film tape.
Examples of the belt-like connector 746 include a metal belt, a cloth belt, a resin belt, a paper belt, and the like.
Examples of the frame 747 include those made of a metal such as aluminum and stainless steel, and those made of a flexible material such as synthetic rubber and natural rubber. Examples of the connection tool 748 include a linear connection tool such as a metal wire, a metal chain, a fiber string, and a resin string in addition to the above-described band-like connection tool.

As illustrated in FIG. 36C, the frame body 747 includes a flat plate-like main body portion 800 and lip portions 801 that extend at both ends of the main body portion 800 in the vertical direction on the same side of the main body portion. It is a thing. The connecting tool 748 described above is connected to the lip portion 801 of the frame body 747, and the frame body 747 and the connecting tool 748 combine the thermally expandable refractory material-containing inorganic fiber package block 740. 744a can be fixed from the outside.
The said support may be installed in all the outer periphery of the combination 744a of the said thermally expansible fireproof material piece containing inorganic fiber package block 740, and may be installed in a part of the outer periphery.

  As a specific example, the heat-expandable refractory small piece-containing inorganic fiber package block 740 has been described as an example. However, the heat-expandable blocks other than the heat-expandable refractory small piece-containing inorganic fiber package block 740 also have the heat expansion. The same as in the case of the refractory material small piece-containing inorganic fiber package block 740.

Next, the thermally expandable fireproof sheet used in the present invention will be described.
The heat-expandable fireproof sheet used in the present invention can be obtained by molding the above-described heat-expandable fireproof resin composition into a sheet shape.
The heat-expandable fireproof sheet can be obtained by molding the heat-expandable fireproof resin composition by a conventionally known method such as press molding, extrusion molding, or calendar molding.

The heat-expandable fireproof sheet may have a base material layer laminated for the purpose of improving workability and combustion residue strength.
As the base material layer, a material capable of maintaining strength during a fire is preferable. Specifically, inorganic fiber-based cloth such as glass cloth and silica cloth is laminated on both sides of the sheet-like molded body of the heat-expandable refractory resin composition, aluminum foil, copper foil, stainless steel foil, tin foil, lead A metal foil such as a foil, a tin-lead alloy foil, a clad foil, or a lead anti-foil may be laminated. Further, a laminate of two or more laminates of inorganic fiber cloth and metal foil may be laminated on the thermally expandable sheet. The surface material of the thermally expandable sheet may be the same or different on the front surface and the back surface.

  The thickness of the heat-expandable fireproof sheet is usually in the range of 0.5 to 10 mm and preferably in the range of 1 to 5 mm from the viewpoint of construction workability and fireproof performance.

Next, the thermally expandable fireproof tape used in the present invention will be described.
As the thermally expandable fireproof tape, for example, the previously described thermally expandable fireproof sheet is cut into a width of about 5 to 200 mm and wound into a roll.

The heat-expandable fireproof tape preferably has self-adhesiveness in order to simplify the workability when it is wound around the folded portion of the heat-expandable fireproof sheet and the cable rack used in the present invention. In order to give the heat-expandable fireproof tape self-adhesive, as the heat-expandable fireproof resin composition, for example, liquid resins such as butyl rubber and polybutene, and those blended with petroleum resin as a tackifier, etc. Use it.
The heat-expandable fireproof tape is a laminate of inorganic fiber cloth such as glass cloth and silica cloth as a base layer, aluminum foil, copper foil, stainless steel foil, tin foil, lead foil, tin-lead alloy foil, clad foil A laminate of metal foils such as lead anti-foil, or a laminate of two or more laminates of inorganic fiber cloth and metal foil can be used.

It is preferable that the heat-expandable fireproof tape is wound around the cable rack at least once.
Moreover, it is preferable that the said heat-expandable fireproof tape arrange | positions the fireproof division penetration part structure of this invention in the boundary which the said cable rack and the said heat-expandable fireproof sheet contact.

  The fixing means for the thermally expandable fireproof tape is not particularly limited, but as a specific mode, means for fixing to the cable rack, the partition part by a fixing tool such as a nail, a screw, a rivet, etc., a fireproof adhesive For example, a means for attaching with an inorganic thread, a wide ribbon or the like, or a means for fixing with a wire, a wide metal band or the like. By fixing the thermally expandable fireproof tape by these means, it becomes possible to simultaneously fix the thermally expandable fireproof sheet disposed inside thereof in addition to the thermally expandable fireproof tape.

Next, the construction method of the fireproof compartment penetration part structure of this invention is demonstrated.
FIGS. 37 to 38 are a schematic main part perspective view and a schematic main part sectional view for explaining the construction process of the fire prevention compartment penetration part structure which is the first embodiment.
As illustrated in FIG. 37, the cable rack 3 passes through the opening 2 formed in the partition 1 defining the adjacent fire prevention compartment from the near side to the diagonally back side. A long body 6 such as a communication cable is inserted into the cable rack 3.

  The folded portion 15 is formed by bending the first thermally expandable refractory sheet at a position where the end portions 13 and 14 of the notches 11 and 12 provided in the first thermally expandable refractory sheet 10 are connected. The first thermally expandable refractory sheet 10 is disposed so as to cover the opening 2 after aligning the folded portion 15 so as to cover the upper surface of the cable rack 3.

  Subsequently, the folded portion 25 is formed by bending the second thermally expandable fireproof sheet 20 at a position where the end portions 23 and 24 of the cuts 21 and 22 provided in the second thermally expandable fireproof sheet 20 are connected. The second thermally expansible fireproof sheet 20 is arranged so as to cover the opening 2 after the folding portion 25 is positioned so as to cover the lower surface of the cable rack 3.

The first heat-expandable fireproof sheet 10 and the second heat-expandable fireproof sheet 20 are fixed to the partition portion 1 with anchor bolts 32, thereby obtaining the structure illustrated in FIG.
The skirts 17 and 18 of the first heat-expandable fireproof sheet 10 and the skirts 27 and 28 of the second heat-expandable fireproof sheet 20 are fixed to the partition 1 so as to overlap with anchor bolts 32, respectively. ing.

  Next, the filling bag 40 is disposed between the cable rack 3 covered by the folded portions 16 and 26 and the elongated body 6 without any gap.

  Since the filling bag 40 is freely deformed and swells naturally even when compressed, the filling bag 40 can be easily disposed between the cable rack 3 and the long body 6.

Next, by fixing the surroundings of the folded portions 16 and 26 and the cable rack with a thermally expandable fireproof tape 50, a fireproof compartment penetration structure which is the first embodiment of the present invention illustrated in FIG. 7 can be obtained. it can. The fixing with the heat-expandable fireproof tape can be selected as appropriate, such as a method of imparting self-adhesiveness to the heat-expandable fireproof tape, a method of fixing with a heat-resistant adhesive, and the like.
Before the filling bag 40 is disposed, the folded portions 16 and 26 and the periphery of the cable rack 3 may be fixed with a heat-expandable fireproof tape 50.

  The filling bag used in the present invention can be deformed freely according to external force and has flexibility to repel each other, so that it can be easily operated between the through hole and the power cable. Since the filling bag can be filled without any gaps, the fireproof compartment penetration structure of the present invention can be provided efficiently.

Next, description will be made on a fireproof compartment penetration structure which is a ninth embodiment of the present invention using the fireproof block.
FIG. 39 is a schematic perspective view of the main part illustrating the ninth embodiment of the fireproof compartment penetration structure using the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block illustrated in FIG.

  The combination 744a of the thermally expandable refractory small piece-containing inorganic fiber package block has an outer shape that is generally rectangular in cross section and can be installed substantially in the cable rack 3. Moreover, since it has a softness | flexibility, the combination 744a of the said thermally expansible fireproof material small piece containing inorganic fiber package block can be arrange | positioned in the said cable rack 3 almost without gap.

Further, in the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block, the portion corresponding to the long bodies 6a, 6b and 6c is removed in advance from the thermally expandable refractory piece-containing inorganic fiber package block. In addition, the cross-section of the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block has a gap through which the elongated bodies 6a, 6b and 6c are inserted.
Thereby, the combination 744a of the thermally expandable refractory material-containing inorganic fiber package block can be disposed so as to surround the long bodies 6a, 6b and 6c.
Moreover, since the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block has flexibility, it can be arranged around the long bodies 6a, 6b and 6c without any gaps.

Fixing brackets 900 are installed from above and below the cable rack 3 and are fixed to the cable rack 3 by auxiliary fixing brackets 910, fixing brackets 920 with bolts, bolts 930, and nuts 940 attached to the side surfaces. .
Other configurations are the same as those of the first embodiment described above.

  Next, the construction method of the fireproof compartment penetration part structure which is the 9th embodiment of this invention using the said fireproof block is demonstrated.

  As illustrated in FIG. 40, in accordance with the shape of the long bodies 6a, 6b, and 6c that are inserted through the inside of the cable rack 3, the combination 744 of the thermally expandable refractory material-containing inorganic fiber package block of FIG. After removing the inorganic fiber felt package block 740 corresponding to the position of the elongated body (see FIG. 33 and FIG. 34), the remaining combination 744a of the thermally expandable refractory material-containing inorganic fiber package blocks is obtained. It arranges in the cable rack 3 from the upper part.

FIG. 41 is a schematic cross-sectional view of a main part for explaining a state in which the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block is arranged inside the cable rack.
Although the outer surface of the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block has adhesiveness, it can be installed in the cable rack 3 from above so that a fireproof compartment penetration structure can be constructed. Excellent workability.

In the case of a conventional construction method for a fire prevention compartment penetration structure, it is necessary to pack a thermally expandable filler or the like in the gap between the opening formed in the partition that defines the fire prevention compartment and the elongated body.
However, when the thermally expandable filler or the like has a flexible structure with elasticity, the thermally expandable filler or the like is deformed even if the thermally expandable filler or the like is inserted into the narrow gap. It was difficult to pack a plurality of the thermally expandable fillers and the like.
Conversely, in the case where the thermally expandable filler or the like has a rigid structure that does not have elasticity, it is difficult to arrange the thermally expandable fillers inserted in the gap between the opening and the elongated body without any gap. Met.
Further, when the outer surface of the thermally expandable filler or the like has adhesiveness, it becomes difficult to pack the thermally expandable filler or the like in a narrow gap inside the opening.

On the other hand, in the case of the fireproof block used in the present invention, it can be constructed by arranging a combination of the fireproof blocks integrated in the cable rack, so that the construction method of the conventional fireproof compartment penetration structure is used. Compared to this, the workability is greatly improved.
In addition, it is possible to easily replace the positions of the individual fireproof blocks in the combination of the fireproof blocks, add new fireproof blocks, or remove unnecessary fireproof blocks. The alignment of the combination of fireproof blocks can also be easily performed at the construction site.

After the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block is placed inside the cable rack, the folded portion 16 is overlapped with the combination 744a of the thermally expandable refractory piece-containing inorganic fiber package block. .
Next, as illustrated in FIG. 39, the fixing bracket 900 is attached to the cable rack 3 from above and below the cable rack 3 using the auxiliary fixing bracket 910, the fixing bracket 920 with bolts, the bolt 930, and the nut 940. By fixing, the fireproof compartment penetration structure which is the ninth embodiment of the present invention can be obtained.
Other construction methods are the same as those in the first embodiment described above.
In the second to eighth embodiments, construction can be performed in the same manner as in the ninth embodiment.

  As described above, the structure for penetrating the fire compartment of the present invention is characterized in that it can be easily constructed regardless of the position and quantity of the cable rack that penetrates the opening formed in the partition that defines the fire compartment. Have

It is a typical principal part perspective view for demonstrating the relationship with the cable rack used for this invention, an elongate body, and an opening part. It is a model perspective view for demonstrating the shape of the 1st thermally expansible fireproof sheet and 2nd thermally expansible fireproof sheet used for this invention. It is a model perspective view for demonstrating the state which combined the 1st thermal expansion fireproof sheet and the 2nd thermal expansion fireproof sheet. It is a typical principal part perspective view for demonstrating the state by which the thermally expansible fireproof sheet has been arrange | positioned around the cable rack used for this invention. It is a schematic principal part sectional drawing which illustrated the cross section cut | disconnected along the partition part about the structure which has arrange | positioned the 1st thermal expansion fireproof sheet and said 2nd thermal expansion fireproof sheet in the said opening part. It is the typical principal part sectional view which illustrated the section of the fire protection division penetration part structure which is the 1st embodiment of the present invention. It is the model principal part perspective view which illustrated the state which has arrange | positioned the thermally expansible fireproof tape around the said cable rack including a folding | turning part. It is a typical principal part sectional drawing for demonstrating the fire prevention division penetration part structure which is the 2nd embodiment of this invention. It is a model principal part perspective view which illustrated the heat-expandable fireproof sheet used for a 3rd embodiment. It is a typical principal part perspective view which illustrated the relationship between the thermally expansible fireproof sheet and cable rack in a 3rd embodiment. It is a model principal part perspective view which illustrated the heat-expandable fireproof sheet used for a 4th embodiment. It is a schematic principal part sectional drawing which illustrated the fire prevention division penetration part structure which is the 4th embodiment using the said thermally expansible fireproof sheet. It is a model perspective view for demonstrating the sticking pin used for this invention. It is the typical principal part perspective view which illustrated the fire prevention division penetration part structure of the aspect which the cable rack has penetrated to the opening part formed in the floor. It is a schematic principal part sectional drawing which illustrated the cross section which cut | disconnected the said cable rack in the same surface as the upper surface of a floor among the fire prevention division penetration part structures which are 5th embodiments. It is a model principal part perspective view which illustrated the heat-expandable fireproof sheet used for a 6th embodiment. It is a model perspective view for demonstrating the state which combined the said 1st-3rd thermally expansible fireproof sheet, respectively. It is the schematic principal part sectional drawing which illustrated the structure which has arrange | positioned the 1st-3rd thermally expansible fireproof sheet in the said opening part as the state cut | disconnected along the partition part. It is a schematic principal part sectional drawing which illustrated the cross section of the fire prevention division penetration part structure which is the 6th embodiment of this invention. It is a typical principal part perspective view for demonstrating the fire prevention division penetration part structure which is the 7th embodiment of this invention. It is a typical principal part sectional view for demonstrating the 8th embodiment of this invention. It is a schematic principal part sectional drawing which illustrated the state which cut | disconnected the structure which has arrange | positioned the heat-expandable fireproof sheet used for an 8th embodiment in the said opening part along a partition part. It is the model perspective view which illustrated the bag for filling used for the present invention. It is the model perspective view which illustrated the modification of the bag for filling used for this invention. It is the model perspective view which illustrated the modification of the bag for filling used for this invention. It is the model principal part perspective view which illustrated the modification of the connection part. It is the model principal part perspective view which illustrated the inorganic fiber felt package block. It is the model principal part perspective view which illustrated the inorganic fiber package block. It is the model principal part perspective view which illustrated the heat-expandable refractory material block. It is the model principal part perspective view which illustrated the heat-expandable refractory material piece containing foam block. It is the model principal part perspective view which illustrated the heat-expandable fireproof material small piece containing inorganic fiber package block. It is the model perspective view which illustrated the shape of the fireproof block used for this invention. It is the model perspective view which illustrated the state which combined the two or more thermally expansible fireproof material small piece containing inorganic fiber package block. It is the model perspective view which illustrated the state which combined the two or more thermally expansible fireproof material small piece containing inorganic fiber package block. It is the model perspective view which showed the modification of the combination of a thermally expansible fireproof material small piece containing inorganic fiber package block. It is the model perspective view which illustrated the combination of the thermally expansible refractory material piece containing inorganic fiber package block provided with the support tool in the outer periphery. It is a model principal part perspective view for demonstrating the construction process of the fire prevention division penetration part structure which is a 1st embodiment. It is a schematic principal part sectional drawing for demonstrating the construction process of the fire prevention division penetration part structure which is a 1st embodiment. It is the model principal part perspective view which illustrated the 9th embodiment of the fire prevention division penetration part structure. It is a typical principal part sectional drawing for demonstrating the construction process of the fire prevention division penetration part structure which is a 9th embodiment. It is a typical principal part sectional drawing for demonstrating the construction process of the fire prevention division penetration part structure which is a 9th embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Partition part 2 Opening part 3 Cable rack 3a 1st cable rack 3b 2nd cable rack 3c 3rd cable rack 4 Parent girder material 5 Cross member 6 Long body 10 1st thermal expansion fireproof sheet 11,12 , 21, 22, 61, 62, 63, 70, 81, 82, 121, 122, 123, 124 Incision 13, 14, 23, 24, 64, 66, 83, 84 Incision end portion 15, 25, 68, 69, 85 Positions for connecting the end portions 16, 26, 71, 72, 86, 131, 132 Folded portions 17, 18, 27, 28, 87, 88, 135, 136, 137, 138 Hem 20 Second heat Expandable fireproof sheet 30, 133, 134 Air gap 32 Anchor bolt 40 Fireproof filler 50 Thermally expandable fireproof tape 60, 80, 120b Thermally expandable fireproof sheet 73 Upper part of cut 74 Lower part of cut 89, 90 Folding hem 91 pin 92 Adhering pin 93 Circular pedestal 94 Heat resistant adhesive layer 95 Release film 100 Ceiling 110 Floor 112 Holding member 120 Third thermal expansion fireproof sheet 120a No. Four heat-expandable fireproof sheets 200 Polyethylene bag 210, 210a, 210b Packaging material 220 Connecting portion 230 Break line 240 Notch 300 Polyurethane foam small piece 400 Expandable fireproof material 500 Non-woven fabric 600 Adhering portion 700 Inorganic fiber felt package block 701 Inorganic fiber felt 702 Polyethylene film 703, 703a Inorganic fiber felt package block combination 710 Inorganic fiber package block 711 Inorganic fiber filler 712 Polyethylene terephthalate nonwoven fabric 720 Thermal expansion fireproof material block 730 Thermal expansion refractory material containing foam block 731 Foam 732 Thermal expansion refractory material 740 Thermal expansion refractory material containing inorganic fiber packaging block 741 Inorganic fiber filler 742 Thermal expansion refractory material 743 Polypropylene non-woven fabric 744, 744a, 744b Combination of thermally expandable refractory small piece-containing inorganic fiber packaging block 745 Adhesive tape 746 Band-shaped connector 747 Frame body 748 Connector 750 Gap for accommodating cross member of cable rack 760 Long Clearance for inserting body 800 rectangular parallelepiped 801 triangular prism 802 hexagonal pillar 900 fixing bracket 910 auxiliary fixing bracket 920 fixing bracket with bolt 930 bolt 940 nut A, B fire prevention section

Claims (7)

An opening formed in a partition that defines a fire protection compartment provided in the building;
A cable rack passing through the opening;
An elongated body inserted through the inside of the cable rack;
A thermally expandable fireproof sheet covering the entire opening around the cable rack along the surface of at least one of the partition parts;
A refractory filler disposed inside the cable rack;
A structure having at least
The heat-expandable fireproof sheet has two or more cuts for forming a folded portion of the heat-expandable fireproof sheet, and the position of the partition portion depends on the position where the terminal ends of the cuts are connected. A folded portion bent outwardly and horizontally with respect to the surface of the cable rack;
The cable rack is inserted through the gap formed by the folded portion of the thermally expandable fireproof sheet, and the surface of the cable rack is covered by the folded portion of the thermally expandable fireproof sheet,
The fireproof filler is disposed between the cable rack and the elongated body located outside the partition part covered by the folded portion of the thermally expandable fireproof sheet ,
A fireproof compartment penetration structure comprising a thermally expandable fireproof tape around the cable rack including the folded portion of the thermally expandable fireproof sheet . Two or more thermally expandable fireproof sheets covering the entire opening around the cable rack along the surface of at least one of the partition parts;
A structure having at least
The first heat-expandable fireproof sheet has two cuts spaced from one side on one side of the cable rack at substantially the same width as the long side of the cable rack cross section. According to the position where the end portions of the two cuts are connected to each other, a folded portion bent in the horizontal direction with respect to the outer side of the partition and the one surface of the cable rack,
The second heat-expandable fireproof sheet has two cuts at an interval of approximately the same width as the long side of the cable rack cross section from one side on the other side of the cable rack. A folded portion bent in a horizontal direction with respect to the other surface of the cable rack so as to face the folded portion of the first thermally expandable refractory sheet depending on the position where the terminal ends of the two cuts are connected. Have
The first thermally expandable refractory sheet and the second thermally expandable refractory sheet cover the opening along the periphery of the cable rack with respective remaining concave surfaces other than the folded portion. Placed in
The cable rack passes through a gap formed by the folded portion of the first thermally expandable fireproof sheet and the folded portion of the second thermally expandable fireproof sheet, and one surface of the cable rack is the first Covered by a folded portion of one thermally expandable refractory sheet, and the other surface is covered by a folded portion of a second thermally expandable refractory sheet;
The fireproof filler is covered with the folded portions of the first and second thermally expandable fireproof sheets, inside the cable rack located outside the partition, and long and body, disposed between,
The heat-expandable fireproof tape is provided around the cable rack including the folded portions of the first and second heat-expandable fireproof sheets, respectively. Fire prevention compartment penetration structure. First and second cable racks penetrating through the opening;
Three or more thermally expandable fireproof sheets covering the entire opening around the cable rack along the surface of at least one of the partition parts;
A structure having at least
The first heat-expandable fireproof sheet is spaced from one side on the same side as the surface of the first cable rack on the inner peripheral surface side of the opening with a substantially same width as the long side of the first cable rack cross section. And has two notches, and is a folded portion bent in the outer direction of the partitioning portion and in the horizontal direction with respect to the surface of the first cable rack, depending on the position where the end portions of the two notches are connected. Have
The second heat-expandable fireproof sheet is spaced from one side on the same side as the surface of the second cable rack on the inner peripheral surface side of the opening with a width substantially equal to the long side of the second cable rack cross section. And has two cuts, and the positions of the two cuts are connected to the surface of the second cable rack in the same direction as the folded portion of the first thermally expandable refractory sheet, depending on the position where the end portions of the two cuts are connected. It has a folded portion bent in the horizontal direction,
The third thermally expandable fireproof sheet is for covering at least a portion of the opening between the first cable rack and the second cable rack, and is the same as the surface of the first cable rack. From one side on the side, there are two cuts at an interval of substantially the same width as the long side of the first cable rack cross section, and depending on the position where the respective end portions of the two cuts are connected, One side of the second cable rack having the folded portion bent in the horizontal direction with respect to the surface of the first cable rack in the same direction as the folded portion of the first thermally expandable fireproof sheet. From the position of connecting the end portions of the two cuts with two notches spaced at substantially the same width as the long side of the second cable rack cross section, the first heat Inflatable fireproof sheet Has a folded portion bent horizontally to the plane of the same direction as the folded portion second cable racks,
The first thermally expandable refractory sheet and the third thermally expandable refractory sheet have the openings along the periphery of the first cable rack by respective remaining concave surfaces other than the folded portion. It is arranged to cover
The second thermally expandable refractory sheet and the third thermally expandable refractory sheet have the openings along the periphery of the second cable rack by respective remaining concave surfaces other than the folded portion. It is arranged to cover
The first cable rack passes through a gap formed by the folded portion of the first thermally expandable refractory sheet and the folded portion of the third thermally expandable refractory sheet, and has one surface of the cable rack. Is covered by the folded portion of the first thermally expandable fireproof sheet, the other surface is covered by the folded portion of the third thermally expandable fireproof sheet,
The second cable rack is inserted through a gap formed by the folded portion of the second thermally expandable refractory sheet and the folded portion of the third thermally expandable refractory sheet. One surface is covered by the folded portion of the second thermally expandable fireproof sheet, and the other surface is covered by the folded portion of the third thermally expandable fireproof sheet,
The refractory filler is inside the first cable rack located outside the partition part covered by the respective folded portions of the first and second thermally expandable refractory sheets, and And the long body, and the first and second heat-expandable fire-resistant sheets and the third heat-expandable fire-resistant sheets are located outside the partition portion covered by the respective folded portions. Between the two cable racks and the elongated body ,
The periphery of the first cable rack including the folded portions of the first and third thermal expandable fireproof sheets and the third thermal expandable fireproof sheet and the second and third thermal expandable fireproof sheets The fireproof section penetrating structure according to claim 1 or 2, further comprising a thermally expandable fireproof tape around the second cable rack including each folded portion of the fireproof sheet . Three or more cable racks penetrating through the opening;
At least we have a two or more intumescent fireproof sheets each disposed between the cable rack adjacent to each other,
A heat-expandable fireproof tape is provided around three or more cable racks each including a folded portion of two or more heat-expandable fireproof sheets disposed between the cable racks adjacent to each other. The fireproof compartment penetration structure according to claim 3.   The fireproof compartment penetration structure according to any one of claims 1 to 4, wherein the cable rack includes a holding member for supporting the fireproof filler therein. The refractory filler is at least one selected from the group consisting of a heat-resistant sealant, an inorganic filler, an inorganic fiber-based filler, a refractory putty, a thermally expandable refractory block, and a thermally expandable refractory material piece. The fireproof compartment penetration structure according to any one of claims 1 to 5 , wherein The refractory filler is a combination of two or more refractory blocks having adhesiveness,
The combination of the refractory blocks has a gap for allowing the elongate body to pass therethrough, and has an outer shape that can be installed substantially in the cable rack. 6. The fireproof compartment penetration structure according to any one of 6 above.