JP5830126B2 - Fireproofing tool and fireproofing structure - Google Patents

Description

  The present invention relates to a fireproofing tool used for subjecting a through-hole formed in a fireproof compartment to fireproofing, and a fireproofing treatment using the fireproofing tool, in order to draw wiring / piping materials to the front side of the fireproof compartment. Concerning structure.

  Conventionally, a through hole is formed in a floor as a fireproof compartment, and a wiring / piping material is disposed in the through hole. This through-hole is provided with a fireproof structure (for example, see Patent Document 1). As shown in FIG. 10, in the fireproof processing structure (fireproof compartment structure) of Patent Document 1, a through portion forming body 101 is disposed in a through hole 100 a drilled in a floor 100. This penetration part forming body 101 is formed by assembling two divided bodies 102 having a substantially semi-cylindrical shape. In addition, a flange portion 106 is formed on the outer peripheral surface of the penetration portion forming body 101.

  And the penetration part formation body 101 is supported by the floor 100 by making the collar part 106 latch on the upper surface of the floor 100. A plurality of cables 104 are inserted and wired in the penetration portion forming body 101. In addition, in the through hole 100 a, a refractory material 105 is filled between the cable 104 and the inner peripheral surface of the penetration part forming body 101.

  In this fireproof processing structure, when a fire or the like occurs on the lower side of the floor 100, both the inner and outer sides of the penetration part forming body 101 are heated from the lower side by fire heat. At this time, since the opening on the upper surface of the floor 100 of the through hole 100a is blocked by the flange portion 106, fire heat and smoke are prevented from being ejected from the through hole 100a onto the floor 100. Furthermore, the fireproof material 105 is heated and expanded by thermal foaming in the upper part of the penetration part forming body 101 by the fire spread heat of the cable 104 and the fire heat. Then, the opening on the upper end side of the penetrating part formation body 101 is completely closed by the heat-expanding and expanding refractory material 105, so that the fire of the cable 104 is prevented and fire heat and smoke are generated in the penetrating part forming body 101. To the floor 100 is prevented.

JP 2005-226725 A

  By the way, in the fireproof processing structure of Patent Document 1, when a fire or the like does not occur, the opening of the penetrating part forming body 101 is filled with a refractory material 105 so that the inside of the penetrating part forming body 101 does not become an air flow path. Has been. However, when the opening of the penetrating part forming body 101 is filled with the refractory material 105, if the plurality of cables 104 are in a dense bundle, the entire bundle is compressed from the outside by the refractory material 105 filled outside the bundle. There is a problem that a large amount of refractory material 105 is required. Further, when the cable 104 is in a bundle shape, it is difficult to fill the inside of the bundle with the refractory material 105, and there is a problem that it is difficult to provide the refractory material 105 to form a fireproof processing structure. It was.

  The present invention has been made in view of the above-described conventional problems, and its purpose is to provide a fireproof treatment tool and a fireproof treatment that can easily form a fireproof treatment structure without requiring a large amount of a thermally expandable fireproof material. To provide a structure.

In order to solve the above-mentioned problems, the invention according to claim 1 is used to apply a fireproofing process to a through hole formed in the fireproof compartment in order to draw out the wiring / piping material to the front side of the fireproof compartment. A fire-resistant treatment tool comprising a non-combustible material substrate formed in a size that closes the entire through hole, and an insertion hole through which a wiring / piping material is inserted into the substrate. A thermally expandable refractory material is integrally provided on one surface on the fireproof compartment side, and the thermally expandable refractory material is a sheet-like thermally expandable refractory sheet attached to one surface of the substrate, or one surface of the substrate. a putty-like thermally expandable refractory material applied to the inside than the opening edge of at least the through-hole with the heat expandable fireproof material surrounds at least the insertion hole, provided so as to face the through-hole Toward the through hole during thermal expansion It is expanding summarized as.

The invention according to claim 2 is the fireproof processing tool according to claim 1, wherein a plurality of the insertion holes are formed in the substrate, and at least one of the plurality of insertion holes is closed by a closing member so as to be openable. This is the gist.
The gist of the invention according to claim 3 is the fireproof processing tool according to claim 1 or 2, wherein the thermally expandable refractory material is provided over the entire surface of the substrate. .

  The invention according to claim 4 is the fireproof processing tool according to any one of claims 1 to 3, wherein a plurality of the insertion holes are formed in the substrate, and the integrally-heat-expandable fireproof member includes: The gist is to surround the plurality of insertion holes.

The invention according to claim 5 is a fireproof processing structure provided in a through-hole formed in the fireproof compartment to draw out wiring / piping material to the front side of the fireproof compartment, and the fireproof compartment is fireproof. The processing tool is fixed, the entire through hole is closed by a non-combustible material substrate provided in the fireproof processing tool, and the wiring / piping material is inserted into the insertion hole formed in the substrate. the wiring and piping material to the front side of the fire partition body from the hole is pulled, thermally expandable fireproof material is provided integrally on one surface of the said fireproof partition-side of the substrate, the thermally expandable fireproof material, said substrate A sheet-like thermally expandable refractory sheet adhered to one surface of the sheet, or a putty-like thermally expandable refractory material applied to one surface of the substrate, and the thermally expandable refractory material surrounds at least the insertion hole. With at least said penetration Inside than the opening edge of the provided so as to face the through hole, and summarized in that expands toward the through hole at the time of thermal expansion.

  The invention according to claim 6 is the fireproof processing structure according to claim 5, wherein the thermally expandable refractory material extends to a position beyond the opening edge of the through hole so as to surround the through hole. The gist.

  The invention according to claim 7 is the fireproof processing structure according to claim 6, wherein the substrate is fixed to the fireproof compartment by a fixing member, and the fixing member is surrounded by the thermally expandable refractory material, Furthermore, it is summarized that the thermally expandable refractory material is pressed toward the surface of the fireproof compartment by the substrate.

  The invention according to claim 8 is the fireproof processing structure according to any one of claims 5 to 7, wherein the substrate is used to close a gap between the insertion hole and the wiring / pipe material. The gist is that a gap closing member having fire resistance is provided on the other surface side so as to surround the wiring and piping material.

  According to the present invention, it is possible to easily form a fireproof processing structure without requiring a large amount of thermally expandable fireproof material.

The side sectional view showing the fireproof processing structure of an embodiment. The perspective view which shows the fireproof processing structure of embodiment. (A) is a perspective view which shows a fireproof processing tool, (b) is a front view which shows a fireproof processing tool, (c) is a side view which shows a fireproof processing tool. The front view which shows the state by which the electric wire pipe was pulled out from the through-hole. The front view which shows the state which fixed the 2nd board | substrate to the wall. The front view which shows the state which fixed the 1st board | substrate to the wall. The figure which shows a conduit tube and a thermally expansible fireproof sheet. Sectional drawing which shows a fireproof processing structure. Sectional drawing which shows another example of a fireproof processing structure. The perspective view which shows background art.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the wall W as a fireproof compartment is a hollow wall formed by standing a pair of wall members Wa so as to sandwich a plurality of shape steel members (not shown). A wiring box B is fixed on the side surface of the shape steel, and the wiring box B is disposed between a pair of wall members Wa. One end of three conduits D is connected to the upper surface of the wiring box B via a connector S, and a cable (not shown) is inserted into each conduit D. In addition, the three conduits D are thicker than the remaining two conduits D in the conduit D connected to the center of the upper surface of the wiring box B. Further, one of the wall members Wa (left side in FIG. 1) is formed with a horizontally-long rectangular through-hole Wb so as to penetrate the wall member Wa in the thickness direction. As shown in FIG. 4, the three conduits D are drawn from the through hole Wb to the front side of the wall W in a state of being arranged in the long side direction (lateral direction) of the through hole Wb. Therefore, in this embodiment, the conduit D is a wiring / piping material.

  As shown in FIG. 2, in order to form a fireproof structure in the through hole Wb, the fireproof tool 11 is fixed to the surface of the wall W (wall material Wa) so as to close the through hole Wb. As shown in FIGS. 3A and 3B, the fireproof processing tool 11 includes a substrate 12 made of a rectangular metal plate (noncombustible material). The board | substrate 12 is formed in the magnitude | size which can close the whole through-hole Wb. The substrate 12 is formed by integrating a first substrate forming member 13 having an elongated rectangular shape and a second substrate forming member 14 having an elongated rectangular shape so as to form a single rectangular plate shape. Yes. The first substrate forming member 13 and the second substrate forming member 14 are formed to have the same length in the long side direction, and the length in the short side direction is longer than the first substrate forming member 13 by the second substrate. The forming member 14 is formed to be longer. And the 1st board | substrate formation member 13 and the 2nd board | substrate formation member 14 are integrated so that one long side may correspond.

  As shown in FIG. 3A, three insertion holes 16 for the conduit D are formed in the substrate 12. Of the three insertion holes 16, the insertion hole 16 located at the center in the long side direction of the substrate 12 is formed to have a larger diameter than the remaining two insertion holes 16. Each insertion hole 16 is formed so as to straddle the first substrate forming member 13 and the second substrate forming member 14. The insertion hole 16 is formed at a position where a dividing line between the first substrate forming member 13 and the second substrate forming member 14 passes through the center point of each insertion hole 16. Moreover, as shown in FIG.3 (b), each insertion hole 16 is closed so that opening is possible by the closing plate 16a as a closing member. The closing plate 16 a is formed by punching a metal plate forming the substrate 12 so that a part of the circumferential direction of the insertion hole 16 remains on the metal plate to form the insertion hole 16, and then fitting the punched metal plate into the insertion hole 16. It is formed by inserting (pushing back). A part of the closing plate 16 a is connected to the substrate 12, and is removed from the substrate 12 when the conduit D is inserted through the insertion hole 16.

  Fixing holes 13a through which screws 17 as fixing members for fixing the fireproof processing tool 11 to the wall material Wa can be inserted into both ends of the first substrate forming member 13 and the second substrate forming member 14 in the long side direction. 14a is formed. Further, in the first substrate forming member 13 and the second substrate forming member 14, the first alignment lines 13 b and 14 b are located at positions where the three insertion holes 16 are sandwiched in the long side direction of the substrate 12. The second substrate forming member 14 is formed to extend linearly in the short side direction. The length between the first alignment lines 13b and 14b along the long side direction of the first substrate forming member 13 and the second substrate forming member 14 is the same as the length of the through hole Wb in the long side direction. ing. Further, the second alignment line 14 c is formed on the second substrate forming member 14 so as to extend linearly in the long side direction of the second substrate forming member 14 so as not to intersect the insertion hole 16. And the length from the edge (upper edge) of the long side of the board | substrate 12 along the short side direction of the board | substrate 12 to the 2nd alignment line 14c becomes the same as the length to the short side direction of the through-hole Wb. ing. In this embodiment, the size of the quadrangle surrounded by the edge (upper edge) of the long side of the substrate 12, the first alignment lines 13b and 14b, and the second alignment line 14c is the size of the through hole Wb. It is the same.

  Of the pair of long sides of the first substrate forming member 13, the first hole forming portion 13d is cut out in a semicircular shape on the other (lower) long side. In addition, a second hole forming portion 14 d is cut out in a semicircular shape on one (upper) long side of the pair of long sides of the second substrate forming member 14. The insertion hole 16 is formed in a circular hole shape by combining the first hole forming portion 13d and the second hole forming portion 14d.

  As shown in FIG. 3 (a), a first thermally expandable refractory sheet 15 as a thermally expandable refractory material is adhered to one surface (back surface) of the first substrate forming member 13, and the second substrate is formed. A second thermally expandable fireproof sheet 19 as a thermally expandable fireproof material is attached to one surface (back surface) of the member 14. The first and second thermally expandable fireproof sheets 15 and 19 have adhesiveness, and are adhered to one surface (back surface) of each of the first and second substrate forming members 13 and 14 by the adhesive force. And the 1st and 2nd thermally expansible fireproof sheets 15 and 19 are affixed on the back surface used as the surface by the side of the wall W in the board | substrate 12. FIG. Further, the first substrate forming member 13 and the second substrate forming member 14 are integrated by integrating the first thermally expandable refractory sheet 15 and the second thermally expandable refractory sheet 19 with one sheet of release paper 18. Thus, the substrate 12 is formed. The first and second heat-expandable fireproof sheets 15 and 19 are formed by forming a heat-expandable fireproof material into a rectangular sheet shape. The first and second thermally expandable refractory sheets 15 and 19 have a property that when heated to 300 ° C. or higher, the volume expands to twice or more that before heating. The first heat-expandable fireproof sheet 15 adhered to the first substrate forming member 13 is formed in such a size that its upper edge protrudes from one long edge (upper edge) of the substrate 12. And the back surface whole surface of the board | substrate 12 is covered with the 1st thermal expansion fireproof sheet 15 and the 2nd thermal expansion fireproof sheet 19. FIG. That is, a part of the first and second heat-expandable fireproof sheets 15 and 19 is also attached to the back surface of the closing plate 16a and is also attached to the back surface of the substrate 12 located between the insertion holes 16. Has been. Moreover, as shown in FIG.3 (c), the thickness of the 1st and 2nd thermally expansible fireproof sheets 15 and 19 is thicker than the thickness of the board | substrate 12 (the 1st board | substrate 13 and the 2nd board | substrate 14).

  The release paper 18 is attached to the entire back surface of the first and second thermally expandable fireproof sheets 15 and 19, and the release paper is also applied to the surface of the first thermally expandable fireproof sheet 15 protruding from the upper edge of the substrate 12. 18 is affixed. And when using the fireproof processing tool 11, the release paper 18 is peeled from the 1st and 2nd thermally expansible fireproof sheets 15,19.

Next, a method for forming a fireproof processing structure using the fireproof processing tool 11 will be described.
First, as shown in FIG. 4, in the state where the three conduits D are drawn out from the through hole Wb, a first ruled line 21a extending linearly along the extended lines of both long sides of the through hole Wb, A second ruled line 21b extending linearly along the extended line of both short sides of the through hole Wb is entered in the wall material Wa. Next, the release paper 18 is peeled from the first and second thermally expandable fireproof sheets 15 and 19, and the fireproof processing tool 11 is formed with the first substrate forming member 13, the first thermally expandable fireproof sheet 15, and the second substrate formation. It divides | segments into the member 14 and the 2nd thermal expansion fireproof sheet 19. FIG. Further, the closing plate 16a is removed from the substrate 12, and part of the first and second thermally expandable fireproof sheets 15 and 19 attached to the back surface of the closing plate 16a is removed from the substrate 12.

  Subsequently, as shown in FIG. 5, the second alignment line 14 c of the second substrate forming member 14 is matched with the other (lower) first ruled line 21 a of the upper and lower first ruled lines 21 a. In addition, both the first alignment lines 14b of the second substrate forming member 14 are aligned with the left and right second ruled lines 21b. The second substrate forming member 14 is fixed to the wall material Wa by forcibly screwing the screws 17 into the wall material Wa from the fixing holes 14a at the matched positions. In a state where the second substrate forming member 14 is fixed to the wall material Wa, the conduit D is supported on the second hole forming portion 14d.

  Next, as shown in FIG. 6, the first substrate is sandwiched between the second hole forming portion 14 d of the second substrate forming member 14 and the first hole forming portion 13 d of the first substrate forming member 13. A forming member 13 is disposed. The upper edge of the first substrate forming member 13 is aligned with one (upper) first ruled line 21a of the upper and lower first ruled lines 21a, and the first and second second ruled lines 21b are The first alignment lines 13b of the substrate forming member 13 are matched. Then, the first substrate forming member 13 is fixed to the wall material Wa by forcibly screwing the screws 17 into the wall material Wa from the fixing holes 13a at the matched positions.

  Then, the upper end edge of the second substrate forming member 14 and the lower end edge of the first substrate forming member 13 are matched to form the substrate 12, and the insertion hole is formed by the first hole forming portion 13d and the second hole forming portion 14d. 16 is formed, and the conduit D is inserted through the insertion hole 16. As a result, the substrate 12 is disposed at a position matching the through hole Wb, the entire through hole Wb is closed by the substrate 12, and the fireproof processing tool 11 is fixed to the wall material Wa.

  At this time, as shown in FIG. 8, the first and second thermally expandable fireproof sheets 15 and 19 are directed toward the surface of the wall material Wa by the substrate 12 by pressing the substrate 12 against the wall material Wa by screwing in screws 17. Is pressed. Therefore, the first and second thermally expandable fireproof sheets 15 and 19 are compressed and pressed against the surface of the wall material Wa. Therefore, the fireproof processing tool 11 is adhered to the wall material Wa by the first and second thermally expandable fireproof sheets 15 and 19 having adhesiveness, and the fireproof processing tool 11 is firmly attached to the wall material Wa by the screws 17. Fixed. Further, as shown in FIG. 7, each screw 17 penetrates the first and second thermally expandable fireproof sheets 15 and 19 and is fixed to the wall material Wa, so that the shaft portion of each screw 17 is thermally expandable. Surrounded by refractory material.

  By fixing the fireproof processing tool 11 to the wall material Wa, the through hole Wb is closed by the substrate 12, the first and second thermally expandable fireproof sheets 15 and 19, and a fireproof processing structure is formed in the through hole Wb. . In this fireproof processing structure, the first and second thermally expandable fireproof sheets 15 and 19 extend to a position beyond the opening edge of the through hole Wb so as to surround the entire through hole Wb. Further, in the fireproof processing structure, the conduit D is juxtaposed in the long side direction of the through hole Wb by the three insertion holes 16. Further, the insertion hole 16 maintains a constant gap between the conduits D adjacent in the long side direction of the through-hole Wb so that the conduits D do not approach or separate from each other. On the back surface of the substrate 12 (first and second substrate forming members 13, 14) that forms a gap between the conduits D, a part of the first and second thermally expandable refractory sheets 15, 19 serves as a thermally expandable refractory material. Is arranged.

  As shown in FIG. 8, in a building in which a fireproof structure is formed on the wall W, it is assumed that a fire or the like has occurred on the wall material Wa side where the through hole Wb is formed, and the conduit D is burned. Then, the fireproof processing tool 11 is heated from the surface side by heat generated by a fire or the like, and the substrate 12 and further the first and second thermally expandable fireproof sheets 15 and 19 are heated. As the conduit D burns, the first and second thermally expandable fireproof sheets 15 and 19 are heated from the inner surface side of the insertion hole 16. Then, as shown by a two-dot chain line in FIG. 8, the first and second thermally expandable refractory sheets 15 and 19 expand toward the inside of the through hole Wb and expand toward the central axis of the conduit D. In addition, the first and second thermally expandable fireproof sheets 15 and 19 expand from the four side peripheral edges of the substrate 12 toward the front side of the wall W and outward of the substrate 12. Then, the conduit D is crushed by the expanded first and second thermally expandable fireproof sheets 15 and 19, and the through hole Wb is closed. As a result, the through hole Wb becomes a path for heat and smoke, and there is no inconvenience that the heat and smoke are transmitted to the other wall material Wa side of the wall W.

According to the above embodiment, the following effects can be obtained.
(1) A plurality of insertion holes 16 are formed in the substrate 12 of the fireproof processing tool 11 so as to be spaced apart from each other, and the first and second heat-expandable fireproofing are provided at positions surrounding the insertion holes 16 on the back surface of the substrate 12. A thermally expandable refractory material is disposed by a part of the sheets 15 and 19. Moreover, the board | substrate 12 is formed in the magnitude | size which can close the through-hole Wb. And the through-hole Wb can be closed with the board | substrate 12 only by fixing the fireproof processing tool 11 to the wall W, and each conduit D can be surrounded by a thermally expansible fireproof material. Therefore, for example, as in the background art in which a plurality of cables are bundled and densely packed in the through-hole forming body, the entire bundle is compressed from the outside with a thermally expandable refractory material, and the thermally expandable fireproof around the cable. There is no need to provide materials. As a result, in this embodiment, it is only necessary to provide a thermally expandable refractory material around each conduit D, and a large amount of thermally expandable refractory material is not required. Moreover, since it is not necessary to fill a heat-expandable refractory material between the conduits D, a fire-resistant treatment structure can be easily formed.

  (2) Since the through hole Wb is closed by the substrate 12, it is not necessary to fill the through hole Wb with a thermally expandable refractory material so that the through hole Wb does not become an air flow path. Furthermore, since the first and second thermally expandable refractory sheets 15 and 19 are integrated on the back surface of the substrate 12, a through hole is provided so that the thermally expandable refractory material does not fall between the adjacent conduits D. There is no need to pack a large amount of thermally expandable refractory material in Wb or between conduits D. Therefore, according to the fireproof processing tool 11, the through hole Wb can be easily closed without requiring a large amount of the heat-expandable fireproof material, and the heat-expandable fireproof material falls between the adjacent conduits D. Can be eliminated.

  (3) In the fireproof processing tool 11, the 1st and 2nd thermally expansible fireproof sheets 15 and 19 are stuck over the back surface whole surface of the board | substrate 12. As shown in FIG. Since the board | substrate 12 is formed in the magnitude | size which can close the through-hole Wb, the through-hole Wb is closed by the 1st and 2nd thermally expansible fireproof sheets 15,19. Furthermore, the 1st and 2nd thermally expansible fireproof sheets 15 and 19 are extended to the position beyond the opening edge of the through-hole Wb so that the through-hole Wb may be surrounded. For this reason, when a fire or the like occurs, not only around the conduit D but also the entire through hole Wb can be reliably closed by the expanded first and second thermally expandable fireproof sheets 15 and 19.

  (4) The first and second heat-expandable fireproof sheets 15 and 19 are formed in a sticky sheet shape. For this reason, the board | substrate 12 and the 1st and 2nd thermally expansible fireproof sheets 15 and 19 can be integrally provided only by sticking the 1st and 2nd thermally expansible fireproof sheets 15 and 19 to the back surface of the board | substrate 12. FIG. .

  (5) In the fireproof processing tool 11, the plurality of insertion holes 16 are formed apart from each other, and the first and second thermally expandable fireproof sheets 15 and 19 are formed between the insertion holes 16 on the back surface of the substrate 12. Thus, a heat-expandable refractory material is provided. For this reason, a heat-expandable refractory material can be disposed between the adjacent conduits D simply by pulling out the conduit D from the insertion hole 16. Therefore, the conduits D are brought into close contact with each other, and there is no inconvenience that the thermally expandable refractory material cannot be filled between the conduits D.

  (6) The fireproof processing tool 11 is fixed to the wall W by forcibly screwing the screws 17 into the wall W from the fixing holes 13a and 14a. For this reason, even if the first and second thermally expandable fireproof sheets 15 and 19 expand when a fire or the like occurs, the substrate 12 moves away from the surface of the wall W and the through hole Wb is opened. This can be prevented.

  (7) The first and second thermally expandable fireproof sheets 15 and 19 extend to a position beyond the opening edge of the through hole Wb so as to surround the through hole Wb. Therefore, when a fire or the like occurs, the periphery of the through hole Wb is protected by the expanded first and second heat-expandable fireproof sheets 15 and 19, and the wall material Wa can be prevented from collapsing.

  (8) The screw 17 is surrounded by the first and second thermally expandable fireproof sheets 15 and 19. For this reason, in the event of a fire or the like, the expanded first and second thermally expandable fireproof sheets 15 and 19 prevent the wall material Wa from collapsing, and further prevents the screws 17 from falling off the wall material Wa. it can.

  (9) When the board 12 is fixed to the wall material Wa by the screws 17, the first and second thermally expandable fireproof sheets 15 and 19 are pressed against the surface of the wall material Wa. For this reason, even if unevenness exists on the surface of the wall material Wa, the first and second thermally expandable refractory sheets 15 and 19 absorb the unevenness, and the surface of the wall material Wa and the first and second thermal expansion properties. It is possible to prevent a gap from being formed between the fireproof sheets 15 and 19.

  (10) Of the three insertion holes 16, the central insertion hole 16 is formed smaller than the remaining two insertion holes 16. Therefore, a fireproof processing structure can be provided in the through-hole Wb from which the two types of pipe diameters D are drawn out by one fireproof processing tool 11.

  (11) The closing plate 16 a is formed by a metal plate formed when the substrate 12 is punched out to form the insertion hole 16, and the closing plate 16 a is fitted into the insertion hole 16 and inserted into the insertion hole 16. Is closed. For this reason, there is almost no gap between the peripheral edge of the closing plate 16a and the insertion hole 16, and the insertion hole 16 is prevented from becoming an air flow path when the fireproof processing tool 11 is fixed to the wall W. can do.

  (12) The substrate 12 is provided with first alignment lines 13b and 14b and a second alignment line 14c. Then, the first alignment lines 13b and 14b are matched with the extended line of the short side of the through hole Wb, the upper end edge of the substrate 12 is on the upper end edge of the through hole Wb, and the second alignment line 14c is aligned with the through hole Wb. By matching with the extension line of the lower edge of the substrate, the four-side peripheral edge of the substrate 12 and the four-side peripheral edge of the through hole Wb can be matched. Therefore, even if the fireproof processing tool 11 is disposed on the front side of the wall W and the through hole Wb is covered with the fireproof processing tool 11 and cannot be visually recognized, the substrate 12 is disposed at a position where the through hole Wb is closed. be able to.

  (13) The fireproof processing tool 11 integrates the first substrate forming member 13 and the first thermally expandable fireproof sheet 15, the second substrate forming member 14 and the second thermally expandable fireproof sheet 19 with the release paper 18. Is formed. And when forming a fireproof processing structure, it can arrange | position so that the electric wire D may be pinched | interposed by the 1st board | substrate formation member 13 and the 2nd board | substrate formation member 14, and arrangement | positioning of the electric pipe D to the penetration hole 16 is easy. It can be carried out.

In addition, you may change the said embodiment as follows.
As shown in FIG. 9, the outer diameter of the conduit D is smaller than the diameter of the insertion hole 16, or the conduit D is a corrugated tube, and a gap K is formed between the insertion hole 16 and the conduit D. In order to close the gap K, a gap closing member 30 having fire resistance may be provided on the surface (other surface) side of the substrate 12 so as to surround the conduit D. The gap closing member 30 is viscous, has a property capable of maintaining its own shape, preferably has adhesiveness, and more preferably has thermal foaming properties. In such a configuration, when a fire or the like occurs on the front side of the wall W, the gap closing member 30 closes the gap K, so that the gap K is prevented from becoming a passage for flame, smoke, or the like. The gap closing member 30 is provided on the front side of the substrate 12 and the first and second thermally expandable fireproof sheets 15 and 19 are provided on the back side, so that the gap closing member 30 has a function of closing the gap K, and The first and second thermally expandable fireproof sheets 15 and 19 have a function of closing the through hole Wb. Therefore, different materials can be used for the front side and the back side of the substrate 12. The gap closing member 30 may have a low viscosity, and may be provided so as to close the gap K with a metal sheet such as an aluminum foil so as not to fall.

  In the embodiment, the fireproof processing structure is formed using only one fireproof processing tool 11, but may be modified as follows. For example, when the through hole Wb is formed in a horizontally longer form than in the embodiment and the six conduits D are drawn out to the front side of the wall W, the two fireproofing tools 11 are arranged in parallel in the horizontal direction, The entire through hole Wb is closed by the two substrates 12. Then, the conduits D may be inserted into the six insertion holes 16, and each conduit D may be pulled out to the front side of the wall W. In addition, you may change the number of the fireproof processing tools 11 provided in parallel according to the magnitude | size of the through-hole Wb, or the number of the electric conduits D.

  Further, the number of the insertion holes 16 formed in the substrate 12 of the fireproof processing tool 11 may be changed to one or two, or the hole diameters of the insertion holes 16 may be different for each fireproof processing tool 11. When comprised in this way, the arrangement | sequence order of the penetration hole 16 can be set with multiple types by the method of arranging the fireproof processing tool 11 in parallel. As a result, by adjusting the manner in which the fireproof processing tools 11 are arranged side by side, it is possible to easily cope with the arrangement of the electric conduit D (wiring / piping material) drawn to the front side of the wall W (fireproof compartment). In addition, by selecting the fireproof processing tool 11 so that the hole diameter of the insertion hole 16 approaches the diameter of the conduit D (wiring / piping material), the insertion hole 16 and the conduit D (wiring / piping material) are interposed. The gap formed can be reduced.

  In the embodiment, the sheet-like first and second heat-expandable fireproof sheets 15 and 19 are attached to the back surface of the substrate 12, and the substrate 12 and the first and second heat-expandable fireproof sheets 15 and 19 are integrated. However, the first and second thermally expandable fireproof sheets 15 and 19 may be non-adhesive. In this case, the first and second heat-expandable fireproof sheets 15 and 19 may be adhered to the substrate 12 with an adhesive or the like and integrated.

  In the embodiment, the first and second thermally expandable fireproof sheets 15 and 19 are attached over the entire back surface of the substrate 12, but the positions facing the insertion holes 16 are the first and second thermally expandable fireproof sheets. 15, 19 may not be provided.

  ○ The first thermally expandable refractory sheet 15 is formed in such a size that the upper edge protrudes from the upper end edge of the substrate 12, but the first thermally expandable refractory sheet 15 may not protrude from the substrate 12, The heat-expandable refractory material may protrude from the four peripheral edges of the substrate 12 by the first and second heat-expandable refractory sheets 15 and 19.

  In embodiment, the fireproof processing tool 11 is divided | segmented into the 1st board | substrate formation member 13 and the 1st thermally expansible fireproof sheet 15, the 2nd board | substrate formation member 14, and the 2nd thermally expansible fireproof sheet 19, and the electric wire pipe D Although the fireproof processing tool 11 is fixed to the wall material Wa in such a manner as to be sandwiched, it may be changed as follows. The fireproof processing tool 11 may be fixed to the wall material Wa by removing the closing plate 16a from the substrate 12 without inserting the fireproof processing tool 11 and inserting the conduit D through the opened insertion hole 16.

As a thermally expandable refractory material, a putty-like material instead of a sheet shape may be applied to the back surface of the substrate 12 to integrate the substrate 12 and the thermally expandable refractory material.
As the thermally expandable refractory material, a putty-like material may be applied only to a position surrounding the insertion hole 16 on the back surface of the substrate 12 to integrate the substrate 12 and the thermally expandable refractory material.

The size of all three insertion holes 16 may be the same, or all three sizes may be different.
O While the closing plate 16a of the insertion hole 16 is deleted, the insertion hole 16 may be closed by the first and second thermally expandable fireproof sheets 15 and 19, and in this case, the first position at the position facing the insertion hole 16 The first and second thermally expandable fireproof sheets 15 and 19 serve as closing members.

The number of insertion holes 16 formed in the substrate 12 may be two or four or more.
In the embodiment, the substrate 12 is formed by integrating the first substrate forming member 13 and the second substrate forming member 14 with the release paper 18, but the substrate 12 may be formed of a single metal plate.

  The size of the substrate 12 and the positions of the first alignment lines 13b and 14b and the second alignment line 14c may be changed according to the size of the through hole Wb formed in the wall W. Further, the first alignment lines 13b and 14b and the second alignment line 14c do not have to coincide with the through hole Wb.

  The number of wiring / piping materials drawn out to the front side of the wall W may not match the number of insertion holes 16. That is, there may be an unused insertion hole 16, and the fixing position of the fireproof processing tool 11 may be adjusted so that the unused insertion hole 16 faces the surface of the wall material Wa.

As the closing plate 16a, a completely punched metal plate of the substrate 12 may be fitted into the insertion hole 16.
One or two of the three insertion holes 16 may be closed by the closing plate 16a.

The fixing holes 13a and 14a may be omitted. In this case, the fireproof processing tool 11 may be fixed to the wall W by applying a flame-resistant putty from the surface of the substrate 12 to the wall W.
The cable inserted as the wiring or the duct as the piping material may be inserted through the insertion hole 16.

(Circle) the board | substrate 12 may be changed into round plate shape etc. according to the shape of the through-hole Wb.
As a fireproof compartment, a fireproof processing structure may be provided using a fireproof processing tool 11 in a solid wall such as a concrete wall, a floor, or a through hole in a ceiling.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(B) The fireproof processing tool according to any one of claims 1 to 4, wherein the thermally expandable fireproof material protrudes from an upper end edge of the substrate.

  D ... Conduit tube as wiring / piping material, K ... Gap, W ... Wall, Wb ... Through hole, 11 ... Fireproofing tool, 12 ... Substrate, 15 ... Heat-expandable fireproof sheet as heat-expandable fireproof material, 16 DESCRIPTION OF SYMBOLS ... Insertion hole, 16a ... Closing plate as closing member, 17 ... Screw as fixing member, 30 ... Gap closing member.

Claims (8)

A fireproofing tool used for performing a fireproofing process on a through hole formed in the fireproofing compartment in order to draw wiring / piping material to the front side of the fireproofing compartment,
A non-combustible material substrate formed in a size that closes the entire through hole is formed, and an insertion hole is formed through which the wiring / pipe material is inserted,
A heat-expandable refractory material is integrally provided on one surface of the substrate on the fireproof compartment side,
The thermally expandable refractory material is a sheet-like thermally expandable refractory sheet adhered to one surface of the substrate, or a putty-like thermally expandable refractory material applied to one surface of the substrate,
Inside the opening edge of at least the through-hole with the heat expandable fireproof material surrounds at least the insertion hole, provided so as to face the through-hole, that expands toward the through hole at the time of thermal expansion Features a fireproofing tool.   The fireproof processing tool according to claim 1, wherein a plurality of the insertion holes are formed in the substrate, and at least one of the plurality of insertion holes is closed by a closing member so as to be openable.   The fireproof processing tool according to claim 1 or 2, wherein the thermally expandable refractory material is provided over the entire surface of one surface of the substrate.   The fireproof processing tool according to any one of claims 1 to 3, wherein a plurality of the insertion holes are formed in the substrate, and an integral thermally expandable refractory member surrounds the plurality of insertion holes. A fireproof structure provided in a through-hole formed in the fireproof compartment to draw wiring / piping material to the front side of the fireproof compartment,
A fireproof processing tool is fixed to the fireproof compartment, and the entire through hole is closed by a non-combustible material substrate provided in the fireproof processing tool,
The wiring / piping material is inserted into the insertion hole formed in the substrate and the wiring / piping material is drawn from the insertion hole to the front side of the fire protection compartment,
A heat-expandable refractory material is integrally provided on one surface of the substrate on the fireproof compartment side,
The thermally expandable refractory material is a sheet-like thermally expandable refractory sheet adhered to one surface of the substrate, or a putty-like thermally expandable refractory material applied to one surface of the substrate,
Characterized in that the heat expandable refractory material inside the opening edge of at least the through hole surrounds at least the insertion hole, provided so as to face the through-hole expands toward the through hole at the time of thermal expansion Fireproof processing structure.   The fireproof processing structure according to claim 5, wherein the thermally expandable refractory material extends to a position beyond an opening edge of the through hole so as to surround the through hole.   The substrate is fixed to the fireproof compartment by a fixing member, the fixing member is surrounded by the thermally expandable refractory material, and the thermal expandable refractory material is directed toward the surface of the fireproof compartment by the substrate. The fireproof processing structure according to claim 6 pressed. 6. A gap closing member having fire resistance is provided on the other surface side of the substrate so as to surround the wiring / pipe material so as to close a gap between the insertion hole and the wiring / pipe material. The fireproof processing structure as described in any one of 7 to 7.

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