JP2019100519A - Fireproof member - Google Patents

Abstract

To provide a fireproof member capable of enhancing workability upon constructing a fireproof measure structure without scattering material.SOLUTION: Between an inner surface of an open hole Wa penetrating a fire compartment wall W in a thickness direction and an outer surface of a wiring and piping material 11 inserted into the open hole Wa, a fireproof member 30 is housed. The fireproof member 30 has a flat plate-like base part 31 composed of foam chloroprene rubber containing expanded graphite, and a sheet material 41 pasted to a first surface 31a and second surface 31b of the base part 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fireproof member accommodated between an inner surface of a through hole provided in a fire protection partition and an outer surface of a through member inserted through the through hole.

  Conventionally, a through hole is formed in the fire protection partition wall in order to penetrate the wiring and piping material as a long penetration member in the fire protection partition wall in the building. And the fire protection partition wall is provided with a fire protection structure. The fire protection structure of the fire protection partition prevents, for example, the inflow of fire, smoke or toxic gas to the other side through the through hole when a fire or the like occurs on the front side of one wall sandwiching the fire protection partition. It is provided to In the fire protection structure, when a fire or the like occurs, the penetration hole is closed to prevent the inflow of flame, smoke, and toxic gas to the side opposite to the fire occurrence side.

  As such a fire protection structure, a plurality of fireproof members are accommodated between the inner surface of the through hole and the outer surface of the wiring / plumbing material, and a plurality of fireproof members are used between the inner surface of the through hole and the outer surface of the wiring / plumbing material There is something to close. As a fireproof member used for such a fire protection structure, the fireproof processing material indicated by patent documents 1 is mentioned, for example. The fireproofing material of Patent Document 1 is formed by housing a rectangular parallelepiped block body having cushioning properties and noncombustibility in an exterior member made of a thermally expandable heat resistant material. The block body is formed of a noncombustible material such as ceramic wool or rock wool.

  By the way, in the fire protection structure, even when a plurality of fireproofing materials are accommodated between the inner surface of the through hole and the outer surface of the wiring and piping materials, adjacent fireproofing materials or between the wiring and piping materials adjacent to each other There may be gaps between them that are smaller than the fireproofing material. In such a case, in Patent Document 1, the fireproofing material is cut according to the size of the gap, and the subdivided fireproofing material is manufactured and packed in the gap.

JP 2008-245508 A

  However, when the fireproofing material disclosed in Patent Document 1 is cut, the surface of the block body is exposed from the cut surface, and ceramic wool and rock wool are easily scattered. For this reason, in the fireproofing material disclosed in Patent Document 1, in order to prevent the ceramic wool and the rock wool from being scattered, the lid made of the same material as the exterior member is covered, and the cut surface is covered with the lid. ing. Therefore, in the case of the fireproof treated material of Patent Document 1, when the subdivided fireproof treated material is manufactured, the treatment after cutting is necessary, and the workability is poor, and the construction of the fire protection structure is very troublesome.

  An object of the present invention is to provide a fireproof member capable of enhancing the workability when constructing a fire protection structure without scattering of materials.

  The fireproof member for solving the above problems is a fireproof member housed between the inner surface of the through hole provided in the fire protection partition and the outer surface of the through member inserted through the through hole, The gist of the present invention is to have a flat plate-like base made of a foam having expansion performance, and a sheet material attached to at least one of the surfaces located at both ends in the thickness direction of the base.

  In the fireproof member, the surface of the base on which the sheet material is attached has a shape having at least a pair of opposing side edges, and the sheet material is attached along at least one side edge. There is.

Moreover, about the fireproof member, the said sheet material may be stuck by the whole of the surface located in the both ends of the thickness direction of the said base.
In the fireproof member, it is preferable that the frictional resistance at the surface of the sheet material is smaller than the frictional resistance at the surface of the base.

  In the fireproof member, the slit extends from one surface in the thickness direction of the base toward the other surface, and the slit separates the base, and is positioned closer to the other surface than the slit in the thickness direction of the base It may have a connection part.

  The fireproof member for solving the above problems is a fireproof member housed between the inner surface of the through hole provided in the fire protection partition and the outer surface of the through member inserted through the through hole, A block-like base made of a foam having expansion performance; and a sheet material attached to one surface of each base so as to unite a plurality of the bases in an arrayed state and maintaining the juxtaposition of the bases , And has a gist.

  In addition, regarding the fireproof member, the sheet material may be made of non-woven fabric.

  According to the present invention, it is possible to enhance the workability when constructing a fire protection structure without scattering of materials.

The front view which shows the fire protection structure in the fire protection division wall of embodiment. (A) is a perspective view which shows a fireproof member, (b) is a disassembled perspective view which shows a fireproof member. (A) is a partial front view which shows a fireproof member, (b) is a partial front view which shows the state which cut | disconnects a fireproof member with a weir. The perspective view which shows the state which cut | disconnected the fireproof member and formed the fireproof member for clearance gaps. The perspective view which shows the state which made the wiring and piping material support the wiring and piping material support rack. The front view which shows the state which laminated | stacked the fireproof member so that wiring and piping material might be surrounded. The perspective view which shows the state which stuffs a fireproof member in clearance gap. The perspective view which shows the fireproof member of another example. The perspective view which shows the state which cut the base by hand. The perspective view which shows the fireproof member of another example. The perspective view which shows the fireproof member by which the sheet | seat material was stuck only to the long side edge of a base. The perspective view which shows another example of a through-hole. The front view which shows another example of the method of accommodation of a fireproof member.

Hereinafter, one embodiment which materialized a fireproof member is described according to Drawings 1-8.
As shown in FIG. 1 or FIG. 5, the concrete-made fire prevention partition wall W is provided with a rectangular through hole Wa seen from the front. The through hole Wa penetrates the fire protection partition wall W in the thickness direction. A plurality of wiring and piping members 11 are inserted through the through holes Wa as a through member. The wiring and piping material 11 is a generic term for wiring (control cable, coaxial cable, optical cable, etc.) and piping material (synthetic resin flexible conduit, steel conduit, etc.) disposed in a building. It is The wiring and piping material 11 is long. In the present embodiment, the wiring and piping members 11 having different diameters are inserted into the through holes Wa.

  The wiring / pipe material 11 is supported from below by the wiring / pipe material support rack 20. The wiring and piping material support rack 20 is in the form of a long ladder. The wiring and piping material support rack 20 includes a pair of elongated members 20 a and a plurality of support members 20 b bridged between the pair of elongated members 20 a. The wiring and piping material support rack 20 is disposed in a state in which the pair of elongated members 20a are inserted through the through holes Wa and the pair of elongated members 20a are opposed in the left-right direction. The support member 20 b is not disposed in the through hole Wa, and the support member 20 b is disposed outside the both sides in the thickness direction of the fire prevention partition wall W. The wiring / pipe material 11 is supported by the plurality of support members 20b.

  As shown in FIG. 1, a plurality of fireproof members 30 are accommodated between the inner surface of the through hole Wa and the outer surface of the wiring and piping member 11 on both sides in the thickness direction of the fire prevention partition wall W. The fireproof structure of the fire wall W is constructed by the fireproof member 30.

  As shown in FIG. 2 (a), FIG. 2 (b) or FIG. 3 (a), the fireproof member 30 constructing the fire protection structure has a rectangular flat base 31 and a sheet material attached to the base 31. And 41. Of the six side surfaces of the base 31, one of two rectangular surfaces having the largest area is taken as a first surface 31a, and the other is taken as a second surface 31b. The direction in which a straight line L connecting the first surface 31 a and the second surface 31 b extends is taken as the thickness direction of the base 31. The first surface 31 a and the second surface 31 b are surfaces located at both ends in the thickness direction of the base 31. In other words, the first surface 31 a and the second surface 31 b are surfaces on both sides in the thickness direction of the base 31. As shown in FIG. 1, there are two types of fireproof members 30 having different thicknesses, and in some cases, the thin fireproof member 30 is described as a first fireproof member 30A, and a fireproof member thicker than the first fireproof member 30A 30 is described as a second fireproof member 30B.

  As shown in FIG. 2 (a) or FIG. 2 (b), a direction along the first surface 31a and the second surface 31b of the base 31 and orthogonal to the longitudinal direction is taken as the short direction. The thickness direction, the longitudinal direction and the latitudinal direction of the base 31 coincide with the thickness direction, the longitudinal direction and the latitudinal direction of the fireproof member 30. In the first surface 31a and the second surface 31b, a pair of side edges extending in the longitudinal direction is a long side edge 31c, and a pair of side edges extending in the short direction is a short side edge 31d.

  The base 31 is made of a foam having thermal expansion performance, and specifically, the base 31 is made of a foam in which a thermal expansion material is uniformly dispersed in a base material. Such a base 31 is obtained by foaming only the foaming agent in the matrix material obtained by kneading the thermal expansion material and the foaming agent in the matrix. In the present embodiment, expanded graphite is used as a thermal expansion material, a polymer is used as a base material, and more specifically, a synthetic rubber is used. Chloroprene rubber is used as a synthetic rubber. As the synthetic rubber, in addition to chloroprene rubber, ethylene propylene diene rubber (EPDM), natural rubber (NR), synthetic natural rubber (IR), isoprene rubber, butadiene rubber (BR), styrene butadiene rubber (SBR), Examples include butyl rubber (IIR) and nitrile rubber (NBR).

  Moreover, the foaming start temperature of a foaming agent is 130-200 degreeC, and the foaming start temperature of expanded graphite is 120-300 degreeC. In the present embodiment, as the foaming agent, one having a foaming start temperature lower than that of the thermal expansion material (expanded graphite) is used. For example, in the case of using expanded graphite having a foaming start temperature of 250 ° C., a foaming agent having a foaming start temperature of 160 ° C. is used.

  As a method of manufacturing the base 31, for example, after the expanded graphite and the foaming agent are uniformly dispersed in chloroprene rubber to prepare the base material material, the temperature is lower than the expansion temperature of expanded graphite so that the expanded graphite does not expand. The matrix material is heated to foam the blowing agent.

  The base 31 is in the form of a sponge having a large number of fine cells formed by the foaming of a foaming agent, and a large number of cells are present in and on the surface of the base 31. Further, the base 31 has rubber elasticity due to the foamed chloroprene rubber.

  As shown by a two-dot chain line in FIG. 3A, the base portion 31 can be compressed and deformed in the thickness direction, and although not shown, it can also be compressed and deformed in the longitudinal direction and the latitudinal direction. The base 31 is provided with a reaction force to return from the compressed state to the original shape. Here, for example, when a closure member based on ceramic wool or rock wool is mentioned as a comparative example, there is almost no reaction force provided in the closure member based on ceramic wool or rock wool, and compression: It almost remains in its compressed shape. On the other hand, the base 31 of the present embodiment has a very large reaction force and immediately tries to return to the original shape even if compressed.

  Since the base 31 described above contains expanded graphite, its volume expands several times or more of that before heating when it receives heat at a predetermined temperature (for example, 250 ° C.) or more. Therefore, the base portion 31 can be compressed and deformed by foamed chloroprene rubber, and can be thermally expanded by expanded graphite.

  As shown in FIG. 2 (a), FIG. 2 (b) or FIG. 3 (a), the fireproof member 30 is provided with a plurality of slits 32 in the base 31. As shown in FIG. The slit 32 extends in the thickness direction from the first surface 31 a of the base 31. The slits 32 extend over the entire short direction so as to connect the pair of long side edges 31 c of the first surface 31 a and exist at equal intervals in the longitudinal direction of the base 31. When the base 31 is viewed in the thickness direction, the plurality of slits 32 are parallel to one another. Assuming that the dimensions of the slits 32 along the thickness direction of the base 31 are depths, the depths of all the slits 32 are the same. Further, the slit 32 does not reach the second surface 31 b of the base 31.

  The connection portion 33 is provided in the base 31 at a portion closer to the second surface 31 b than the slit 32. Since the depths of all the slits 32 are the same, the dimensions of the connecting portion 33 along the thickness direction of the base 31 are also the same. The connecting portion 33 extends over the entire short direction so as to connect the pair of long side edges 31c of the first surface 31a. The thickness which is the dimension of the connecting portion 33 along the thickness direction of the base 31 is smaller than the depth of the slit 32. And the connection part 33 can be cut | disconnected by a manual cutting tool, such as a human hand and scissors, and a cutter.

  The base 31 is divided into a plurality of block portions 34 by a plurality of slits 32. The slits 32 exist at equal intervals in the longitudinal direction of the base 31, and the block portions 34 adjacent to each other in the longitudinal direction are connected by the connecting portion 33. Since the depths of the slits 32 and the thicknesses of the connecting portions 33 are all the same, the dimensions of the block portion 34 along the longitudinal direction of the base 31 and the dimensions of the block portion 34 along the thickness direction are all block portions 34 Is the same. Then, the block portions 34 can be individually compressed and deformed, and are provided with a reaction force for returning from the compressed state to the original shape.

  The dimension in the longitudinal direction of the first fireproof member 30A is shorter than the dimension in the longitudinal direction of the second fireproof member 30B. The dimensions in the longitudinal direction of the first fireproof member 30A and the second fireproof member 30B may be the same, or the first fireproof member 30A may be longer than the second fireproof member 30B. The number of slits 32 of the first fireproof member 30A is greater than the number of slits 32 of the second fireproof member 30B, and the number of block portions 34 of the first fireproof member 30A is greater than the number of block portions 34 of the second fireproof member 30B. There are many. The dimension of the block portion 34 along the longitudinal direction of the first refractory member 30A is smaller than the dimension of the block portion 34 along the longitudinal direction of the second refractory member 30B. In addition, the thickness of the connection portion 33 of the first fireproof member 30A is smaller than the thickness of the connection portion 33 of the second fireproof member 30B.

  As shown in FIG. 2A or FIG. 3B, the sheet material 41 is attached to the entire first surface 31 a excluding the slits 32 and the entire second surface 31 b. The sheet material 41 is made of non-woven fabric. The frictional resistance on the surface of the sheet material 41 is smaller than the frictional resistance on the surface of the base 31 made of foamed chloroprene rubber. The sheet material 41 attached to the first surface 31 a is divided along the slit 32. For this reason, the sheet material 41 is stuck independently for every block part 34. As shown in FIG. The slit 32 is formed by attaching a sheet material 41 having the same size as the first surface 31 a of the base 31 to the first surface 31 a and then cutting the base 31. Therefore, at the same time as forming the slits 32, the sheet material 41 is cut to a size corresponding to each block portion 34.

  As shown in FIG. 4, the fireproof member 30 can be cut from any of the place with the slit 32 and the place without the slit 32 by a manual cutting tool such as a scissors or a cutter. Then, when the refractory member 30 is cut and subdivided, the gap refractory member 35 is formed. The fireproof member 35 for gap is smaller in dimension in the longitudinal direction than the fireproof member 30, and has a rectangular parallelepiped shape. When constructing the fire protection structure, a gap smaller than the size in the longitudinal direction of the first fireproof member 30A or the second fireproof member 30B between the adjacent wiring / pipe members 11 or between the adjacent fireproof members 30. Will occur. The refractory member 30 is cut so as to have a size slightly larger than the gap, and the gap refractory member 35 is manufactured.

As shown in FIG. 4, when the fireproof member 30 is cut by a weir 51 as a manual cutting tool from a location without the slits 32, the blade 51 a of the weir 51 contacts the fireproof member 30.
As shown in FIG. 3B, the sheet material 41 is attached to the entire surface including the long side edges 31c on the first surface 31a and the second surface 31b. For this reason, when the blade 51a of the weir 51 is put in the block portion 34, the sheet material 41 suppresses the compressive deformation of the part where the blade 51a is put, and the cutting by the weir 51 is easy.

Next, a method of forming the fire protection structure will be described.
First, as shown in FIG. 5, through holes Wa for allowing the wiring and piping material 11 to penetrate through the fire prevention partition wall W are formed. Next, the wiring and piping material support rack 20 is disposed in the through hole Wa. Next, the plurality of wiring and piping members 11 are supported by the plurality of support members 20 b of the wiring and piping material support rack 20, and the wiring and piping members 11 are penetrated through the fire prevention partition wall W.

  Next, as shown in FIG. 6 and FIG. 7, the plurality of fireproof members 30 are accommodated between the inner surface of the through hole Wa and the outer surface of the wiring / pipe material 11. At this time, the fireproof member 30 is accommodated in the through hole Wa such that the longitudinal direction of the fireproof member 30 extends in the left-right direction and the thickness direction extends in the up-down direction. The left-right direction is the left-right direction when the fire prevention partition wall W is viewed from the front, and coincides with the longitudinal direction of the through hole Wa. The fireproof member 30 in contact with the outer surface of the wiring / pipe material 11 uses the first fireproof member 30A, and the other fireproof members 30 use the second fireproof member 30B.

  The base 31 of the first fireproof member 30A and the base 31 of the second fireproof member 30B are the same foamed chloroprene rubber. And even if it is the 1st fireproof member 30A and the 2nd fireproof member 30B of the same material, the 1st fireproof member 30A and the 2nd fireproof member 30B are properly used according to thickness. The base 31 is more easily deformed as the thickness becomes thinner, and the reaction force becomes smaller, and as the thickness becomes thicker, the deformation becomes difficult and the reaction force becomes larger.

  Therefore, the first fireproof member 30A is used as the fireproof member 30 in contact with the outer surface of the wiring / pipe material 11 in order to make the base 31 follow the shape of the wiring / pipe material 11, and the inner surface side in the through hole Wa That is, the second fireproof member 30B is used as the fireproof member 30 disposed outside the first fireproof member 30A. That is, in the through hole Wa, the thickness of the fireproof member 30 on the side of the wiring / pipe material 11 is reduced, and the fireproof member 30 is used properly so that the thickness of the fireproof member 30 on the inner surface of the through hole Wa is increased.

  The second refractory members 30B are stacked from the lower side of the through hole Wa upward. Further, the second fireproof members 30B are arranged in the left-right direction of the through holes Wa. When a gap shorter than the dimension in the longitudinal direction of the second fireproof member 30B is formed in the left-right direction, in FIG. 6, between the elongated member 20a and the inner surface of the through hole Wa, the dimension of the gap is larger. The second fireproof member 30B is cut so as to be slightly longer to form the fireproof member 35 for clearance, and the fireproof member 35 for clearance is packed in the clearance.

  Each of the second fireproof member 30B and the fireproof member 35 for clearance which are juxtaposed in the left-right direction is compressed in the longitudinal direction, and a reaction force is generated to return from the compressed state to the original shape. By this reaction force, the second fireproof members 30B adjacent to each other in the left-right direction, the fireproof member 35 for a gap, and the long member 20a press against each other. Although not shown, when the second fireproof member 30B and the fireproof member for gap 35 are adjacent to each other in the left-right direction, the second fireproof member 30B and the fireproof member for gap 35 are in pressure contact with each other. In other words, the reaction forces of the second fireproof members 30B and the fireproof members 35 for clearances arranged in the left-right direction are used to press-contact each other. In addition, in the rectangular parallelepiped fireproof member for clearance 35, the direction in which the fireproof member for clearance 35 is packed is adjusted according to the reaction force to be generated. Similar to the base 31, the smaller the thickness of the fireproof member 35, the smaller the reaction force, and the smaller the thickness, the less the deformation and the larger the reaction force. For this reason, the direction of the gap refractory member 35 is selected in accordance with the magnitude of the reaction force to be generated.

  The first fireproof member 30A is used as the fireproof member 30 in contact with the outer surface of the wiring / pipe material 11. At this time, as shown in the enlarged view of FIG. 1, the sheet material 41 on the first surface 31 a side of the first fireproof member 30A is brought into contact with the outer surface of the wiring / pipe material 11. When the second fireproof members 30B are stacked in the vertical direction, or when the second fireproof members 30B are stacked on the first fireproof member 30A, the second fireproof members 30B adjacent to each other in the stacking direction and the first fireproof members 30A The second fireproof member 30B is bonded to each other by the double-sided tape T. In the present embodiment, the facing direction of the outer surface of the wiring / pipe material 11 and the inner surface of the through hole Wa is the vertical direction, and a plurality of first fireproof members 30A and second fireproof members 30B are stacked in the vertical direction. ing. Thus, the vertical direction is the stacking direction.

  Finally, in each row in the left-right direction, the fireproof member 30 is inserted between the first fireproof member 30A or the fireproof member 35 for a gap and the inner surface of the through hole Wa in the uppermost stage in the stacking direction. At this time, as shown by a two-dot chain line in FIG. 6, the dimension in the vertical direction and the lateral direction of the gap formed at the top in the stacking direction is smaller than the thickness and the longitudinal direction of the second fireproof member 30B. Therefore, the second fireproof member 30B is packed in the gap while compressing the second fireproof member 30B in the thickness direction and the longitudinal direction. After the second fireproof member 30B to be finally packed is also packed into the gap, a reaction force is generated to return from the compressed state to the original shape. The reaction force causes the second fireproof member 30B to be in pressure contact with the inner surfaces of the second fireproof member 30B and the fireproof member 35 for the gap adjacent in the stacking direction, the second fireproof member 30B adjacent in the left-right direction, and the through hole Wa.

  At this time, the second fireproof member 30B to be pressed is not stuck with the double-sided tape T. Moreover, the friction which generate | occur | produced between the 2nd fireproof member 30B and the fireproof member 35 for clearances which the 2nd fireproof member 30B pushes in is reduced by the sheet material 41, and it becomes easy to pack the 2nd fireproof member 30B in clearance.

  Then, when the second fireproof member 30B is packed in a compressed state into the gap, the fireproof members 30 stacked in the vertical direction are each compressed in the thickness direction, and the reaction force to return from the compressed state to the original shape Occurs.

  Further, the gap fireproof member 35 is packed between the outer surface of the wiring / pipe material 11 and the first fireproof member 30A. In the space refractory member 35, the direction in which the space refractory member 35 is packed is adjusted in accordance with the reaction force to be generated. Similar to the base 31, the smaller the thickness of the fireproof member 35, the smaller the reaction force, and the smaller the thickness, the less the deformation and the larger the reaction force. For this reason, the direction of the gap refractory member 35 is selected in accordance with the magnitude of the reaction force to be generated.

  Then, the first fireproof member 30A is brought into pressure contact with the outer surface of the wiring / pipe material 11 using the reaction force generated in all the first fireproof members 30A and the second fireproof members 30B stacked in the vertical direction. That is, the first fireproof members 30A, the second fireproof members 30B, the fireproof members 35 and the second fireproof members 30B, and the first fireproof members 30A and the second fireproof members 30B adjacent to each other in the stacking direction are pressed against each other. At this time, as described above, the first fireproof member 30A is used as the fireproof member 30 in contact with the outer surface of the wiring and piping member 11, and the first fireproof member 30A is disposed outside the first fireproof member 30A. [2] The fireproof member 30B is used.

  Therefore, the first fireproof member 30A is pressed toward the wiring and piping member 11 by the second fireproof member 30B having a large reaction force, and not only the reaction force of the first fireproof member 30A but also the reaction force of the second fireproof member 30B is used. The first fireproof member 30A is in pressure contact with the wiring / pipe material 11. As a result, as shown in the enlarged view of FIG. 1, in the first fireproof member 30A, a reaction force F is generated toward the wiring and piping material 11, and the first fireproof member 30A is directed to the wiring and piping material 11 The first fireproof member 30A is urged against the wiring / pipe material 11 by being urged.

  The reaction force F generated in the first fireproof member 30A acts as a force that presses the first surface 31a through the sheet material 41 against the outer surface of the wiring / pipe material 11. Then, each block portion 34 of the first fireproof member 30A is deformed according to the shape of the outer surface of the wiring / pipe material 11 via the sheet material 41 respectively. The amount of compression in the thickness direction of the block 34 in contact with the wiring / pipe material 11 increases as the diameter of the wiring / pipe material 11 increases, and the wire / pipe material 11 contacts the wiring / pipe material 11 as the diameter decreases. The amount of compression of the block portion 34 in the thickness direction decreases. In addition, although the diameter of the wiring / pipe material 11 is different along the left-right direction, each block portion 34 is deformed while being compressed following the diameter of the wiring / pipe material 11 along the longitudinal direction of the first fireproof member 30A. Do.

  Then, the first fireproof member 30A is in pressure contact with the outer surface of the wiring / pipe material 11. By arranging the easily deformable first fireproof member 30A at a position where the first fireproof member 30A is brought into contact with the wiring / pipe material 11, a gap is hardly formed between the wiring / pipe material 11 and the first fireproof member 30A. Further, the second fireproof member 30B having a large reaction force is disposed outside the first fireproof member 30A. That is, by selectively using the first fireproof member 30A and the second fireproof member 30B according to the thickness of the base 31, formation of a gap is suppressed while pressing the fireproof member 30 against the wiring / pipe material 11.

  As a result, the space between the inner surface of the through hole Wa and the outer surface of the wiring / pipe material 11 is closed by the first fireproof member 30A, the second fireproof member 30B and the fireproof member 35 for clearance. Also, the fireproof member 35 for gap, the second fireproof member 30B, or the first fireproof member 30A is in pressure contact with the outer surface of the long member 20a in the wiring / pipeline support rack 20. A fine gap which can not be closed by the fireproof member 30 and the fireproof member for gap 35 is filled with the fireproof putty P. As a result, the fire protection structure of the fire protection compartment wall W is completed.

Next, the operation of the fire protection structure of the fire protection compartment wall W will be described.
Now, in a building provided with the fire protection structure of the fire protection partition W, it is assumed that a fire or the like occurs on the front wall side of the fire protection partition W and the wiring / pipe material 11 burns. At this time, it is the first fireproof member 30A that is in pressure contact with the outer surface of the wiring / pipe material 11. Then, the heat generated from the wiring / pipe material 11 does not cause the first fireproof member 30A to be burned off immediately, and the first fireproof member 30A receives heat and expands. In addition, the second fireproof member 30B around the first fireproof member 30A and the fireproof member 35 for gap also receive heat and expand.

  Then, the space between the wiring / pipe material 11 and the through hole Wa is hermetically closed by the expanded first refractory member 30A, the second refractory member 30B, and the gap refractory member 35. That is, the gap between the outer surface of the wiring / pipe material 11 and the inner surface of the through hole Wa is prevented from becoming a path of flame, smoke, toxic gas or heat, Transmission of smoke, toxic gases and heat is prevented.

According to the above embodiment, the following effects can be obtained.
(1) The fireproof member 30 includes a base 31 and a sheet material 41 attached to the base 31. The base 31 is foamed chloroprene rubber and does not contain inorganic fibers such as rock wool and ceramic wool. For this reason, even if the fireproof member 30 is cut by a human hand or a weir 51 to form the fireproof member 35 for gaps, the material such as fiber does not scatter from the cut surface, and the material scatter is prevented. There is no need to apply a treatment to cover the cut surface.

  When the blade 51 a of the crucible 51 is inserted into the fireproof member 30 in order to cut the fireproof member 30, the sheet material 41 can suppress the compressive deformation of the sponge-like base 31. As a result, the base 31 can be easily cut. Therefore, according to the fireproof member 30, even if the fireproof member 30 is cut, there is no scattering of the material from the cut surface, and furthermore, the base 31 can be easily cut off. The workability of the fireproof member 30 can be enhanced.

  (2) The sheet material 41 is attached to the entire first surface 31a and the entire second surface 31b of the base 31 excluding the slits 32, and also to the long side edge 31c where the blade 51a of the weir 51 enters. Existing. Therefore, even if the blade 51a of the weir 51 is put in any place except the slit 32, the compressive deformation of the base 31 can be suppressed by the sheet material 41, and the base 31 can be easily cut.

  (3) The frictional resistance of the sheet material 41 surface is smaller than the frictional resistance of the base 31 surface. For this reason, compared with the case where there is no sheet material 41 and the surface of the base 31 is exposed, the fireproof member 30 and the fireproof member 35 for clearance are easily slipped into the clearance, and the fireproof member 30 and the fireproof member 35 for clearance are clearanceed It is easy to do stuffing work. As a result, the workability of the fireproof member 30 when constructing the fire protection structure can be enhanced.

  (4) The base 31 of the fireproof member 30 is provided with a plurality of slits 32, and the sheet material 41 is divided at a portion along the slits 32. For this reason, it is not necessary to cut | disconnect the sheet material 41 by the side of the 1st surface 31a, and the fireproof member 35 for clearance gaps can be manufactured easily.

  (5) The sheet material 41 is made of non-woven fabric. Nonwoven fabrics are formed without weaving non-continuous fibers (short fibers), and are more flexible than woven fabrics and the like. For this reason, even if the fireproof member 30 has the sheet member 41, the fireproof member 30 and the fireproof member for gap 35 can be easily compressed and deformed, and the work of packing in the gap can be easily performed. Further, the sheet material 41 does not prevent the return from the compressed shape to the original shape, and the reaction force of the fireproof member 30 and the fireproof member 35 for clearance itself makes the wiring / pipe material 11 have the fireproof member 30 and fireproof member for clearance. 35 can be pressed.

  (6) The base 31 of the refractory member 30 is made of foamed chloroprene rubber containing expanded graphite. For this reason, the fireproof member 30 is provided with a reaction force which tends to return to its original shape when compressed. Therefore, when the fireproof member 30 is packed in a compressed state between the inner surface of the through hole Wa and the outer surface of the wiring / pipe material 11, the fireproof member 30 is fixed to the wiring / pipe material 11 by the reaction force of the fireproof member 30 itself. It can be pressure-welded. If it explains in full detail, the fireproof member 30 can be pressure-contacted to wiring / piping material 11 using the reaction force of all the fireproof members 30 which overlap in the lamination direction. Therefore, in order to press the fireproof member 30 against the wiring / pipe material 11, it is not necessary to surround the fireproof members 30 with a band or to hold the fireproof member 30 between two plate members. That is, the fireproof member 30 can be brought into pressure contact with the wiring / pipe material 11 only by packing the fireproof member 30 between the inner surface of the through hole Wa and the outer surface of the wiring / pipe material 11. Therefore, the fire protection structure of the fire protection partition W can be simplified, and the construction becomes easy.

  (7) When constructing the fire prevention structure of the fire prevention partition wall W, if the fireproof member 30 and the fireproof member 35 for clearance are compressed and packed in the clearance, the fireproof member 30 and the fireproof member 35 for clearance return to the original shape. The base 31 is made of foamed chloroprene rubber, and has a large reaction force as compared with a fireproof member provided with ceramic wool or rock wool, so that the fireproof member 30 and the fireproof member 35 for gap are strongly pressed against the wiring / pipe material 11 it can.

(8) Since foamed chloroprene rubber is adopted as the foam, it is possible to exert a suitable reaction force by rubber elasticity while making the base 31 into a sponge shape so as to be easily compressed and deformed.
(9) The thickness of the fireproof member 30 (first fireproof member 30A) in contact with the outer surface of the wiring / pipe material 11 is made thinner than the thickness of the fireproof member 30 (second fireproof member 30B) not in contact with the wiring / pipe material 11 . As the thickness of the first fireproof member 30A is thinner, the base 31 is more easily deformed, so the first fireproof member 30A can be easily made to follow the shape of the wiring / pipe material 11, and the wiring / pipe material 11 and the first fireproof member 30A It becomes difficult to form a gap between

  In addition, the first fireproof member 30A which is easy to be compressively deformed and has a small reaction force is brought into contact with the outer peripheral surface of the wiring / pipe material 11, and the second fireproof member 30B which is hard to be compressively deformed and has a large reaction force is a first fireproof member It was placed outside of 30A. As a result, the first fireproof member 30A having a small reaction force can be strongly pressed against the outer surface of the wiring / pipe material 11 by using the second fireproof member 30B having a large reaction force. Therefore, by selectively using the fireproof member 30 according to the thickness, it is difficult to form a gap, and furthermore, a fire protection structure in which the fireproof member 30 is brought into pressure contact with the wiring / pipe material 11 can be constructed.

  (10) For example, as a fireproof member, there is one in which a block body of rock wool or ceramic wool is covered with an exterior member formed in a square box shape with a thermally expandable heat resistant material. In such a refractory member, the rigidity of the corner portion of the exterior member is high, and it is difficult to follow the outer surface of the wiring / pipe material 11 and to be deformed. However, the fireproof member 30 of the present embodiment is composed of the base 31 made of foamed chloroprene rubber and the sheet material 41 made of non-woven fabric, and is flexible as a whole. For this reason, even if it is any site | part of the fireproof member 30, especially a corner part, a compressive deformation is not prevented and the fireproof member 30 can be made to pressure-contact while making the shape of the wiring * piping material 11 follow.

  (11) The base 31 is divided into the block portions 34 along the slits 32. For this reason, for example, as compared with the case where the slits 32 are not formed in the base portion 31, the base portion 31 can be easily made to conform to the shape of the wiring / pipe material 11.

  (12) The sheet material 41 is divided into the block portions 34 along the slits 32. For example, as in the case where the sheet material 41 is not divided for each block portion 34 and one sheet material 41 is adhered to the entire first surface 31 a, the deformation of each block portion 34 is hindered by the sheet material 41 Can be eliminated. Therefore, each block portion 34 can be easily deformed independently, and can be easily deformed following the shape of the wiring / pipe material 11.

  (13) The fireproof members 30 adjacent to each other in the stacking direction were joined with the double-sided tape T. For this reason, when packing the fireproof member 30 in a clearance gap, it can suppress that the fireproof member 30 already installed shifts in position by pushing of the fireproof member 30. FIG. In addition, after the construction of the fire protection structure, the laminated state of the fireproof member 30 can be maintained by the double-sided tape T.

  (14) In the fireproof member 30, the slits 32 are provided at equal intervals in the longitudinal direction of the base 31, and the slits 32 are parallel to each other. For this reason, the block part 34 divided by the slit 32 can be made into the same magnitude | size. Therefore, the block portion 34 which is hard to be compressed due to the difference in size and the block portion 34 which is easy to be compressed do not occur, and each block portion 34 can be deformed following the wiring / pipe material 11.

  (15) The fireproof member 30 includes the slit 32, and the sheet material 41 is divided at a portion along the slit 32. For this reason, the fireproof member 35 for gaps can be manufactured only by cutting the base 31 from the slit 32.

  (16) The depth of the slit 32 is larger than the dimension of the connecting portion 33 along the thickness direction of the base 31. That is, the dimension of the connecting portion 33 is smaller than the depth of the slit 32. For this reason, the connection part 33 can be easily cut | disconnected with a human hand and scissors 51. FIG.

  (17) By making the fireproof member for gap 35 into a rectangular parallelepiped shape, the thickness differs between the thickness along the long side of the fireproof member for gap 35 and the thickness along the short side, and the reaction force generated according to the thickness is also It is different. Then, by selecting the direction in which the space refractory member 35 is packed, a reaction force can be generated in the space refractory member 35 according to the place to be packed.

The above embodiment may be modified as follows.
As shown in FIG. 8, the fireproof member 30 may be configured only by the base 31 and may not include the sheet material 41. In this case, a slit 32 extending in the thickness direction from the first surface 31 a is formed in the base 31, and a connecting portion 33 is formed closer to the second surface 31 b than the slit 32. The dimension (depth) of the slit 32 along the thickness direction of the fireproof member 30 is larger than the thickness of the connecting portion 33. For this reason, as shown in FIG. 9, the connection part 33 of the fireproof member 30 can be easily cut with a human hand. And when making one block part 34 divided by the slit 32 into the fireproof member 35 for clearances, the connection part 33 is cut | disconnected.

  As shown in FIG. 10, the fireproof member 30 has a plurality of base portions 31 formed in a block shape, and a sheet member 41 attached to each base portion 31 in order to integrate the plurality of base portions 31 in a lined state. , May be composed. In this case, the sheet material 41 is attached only to one side of each base 31. In addition, instead of the sheet material 41 made of non-woven fabric, a plurality of base portions 31 are attached to a base member formed of a hard material such as a resin plate and made of a material having lower flexibility than the sheet material 41 It may be In this case, the base member can be broken and cut by a human hand and a manual cutting tool such as a scissors 51 or the like.

  In such a configuration, since the fireproof member 30 is divided into a plurality of base portions 31 in advance, when using the base portion 31 as the fireproof member 35 for gap, it is only necessary to cut the sheet material 41 or the base member. The gap fireproof member 35 can be easily formed.

  As shown in FIG. 11, the sheet material 41 may be stuck along the first side 31a of the base 31 and one long side edge 31c of the second side 31b. In such a configuration, when the blade 51 a of the crucible 51 is inserted into the refractory member 30, the blade 51 a enters the long side edge 31 c of the base 31. For this reason, even if the sheet material 41 is stuck only to the long side edge 31c, since the compressive deformation of the part which put the blade 51a is suppressed by the sheet material 41, cutting becomes easy.

  ○ As shown in FIG. 12, a tubular member 50 along the periphery of the through hole Wa of the fire blocking wall W is fixed to the outer surface of the fire blocking wall W, and a space surrounded by the tubular member 50 is a through hole 50a. It is also good. Then, regarding the fire protection structure of the fire protection partition W, the inner surface of the cylindrical member 50 is the inner surface of the through hole 50a, and the fireproof member 30 is accommodated between the inner surface of the through hole 50a and the outer surface of the wiring / pipe material 11. You may form.

  In the embodiment, the fireproof members 30 are stacked vertically in the facing direction, and the fireproof members 30 are stacked. However, as shown in FIG. 13, the outer surface of the wiring / pipe material 11 and the inner surface of the through hole Wa When the facing direction is the left-right direction, the plurality of fireproof members 30 may be accommodated such that the thickness direction of the fireproof member 30 coincides with the left-right direction, and the left-right direction may be the stacking direction of the fireproof members 30. In this case, the sheet material 41 is preferably a double-sided tape, and the base material 31 adjacent to each other in the left-right direction (stacking direction) is joined by the sheet material 41.

The fire protection structure of the fire protection partition W may be constructed by laminating all the fireproof members 30 in the left-right direction.
In the embodiment, the fireproof member 30 is used according to the reaction force based on the thickness of the base 31 and the easiness of deformation, but according to the reaction force and the ease of deformation based on the degree of foaming in the base 31 and the density of the synthetic rubber. The refractory member 30 may be used properly.

  If the frictional resistance on the surface of the sheet material 41 is lower than the frictional resistance on the surface of the base 31, the sheet material 41 may be formed of a material other than the non-woven fabric. For example, the sheet material 41 may be formed of a woven fabric, a knitted fabric, or a resin sheet.

In the embodiment, the fireproof members 30 adjacent to each other in the stacking direction are joined by the double-sided tape T. However, the joining by the double-sided tape T may be omitted.
In the embodiment, the fireproof members 30 adjacent to each other in the stacking direction are joined with the double-sided tape T. However, the fireproof members 30 adjacent to each other in the stacking direction may be joined by a method other than the double-sided tape P, for example, an adhesive. .

  The sheet material 41 attached to the first surface 31 a of the base 31 may not be divided along the slits 32, and may be attached to the entire first surface 31 a so as to cover the slits 32. In such a configuration, even when the sheet material 41 is attached to cover the slit 32, the slit 32 can be used as a place for inserting the blade 51a of the ridge 51 when the sheet material 41 is divided. Moreover, although the sheet material 41 is not divided before construction, the sheet material 41 may be cut along the slit 32 at the time of construction to make it the same aspect as the fireproof member 30 of the embodiment.

  Further, the sheet material 41 of the first fireproof member 30A to be in contact with the wiring and piping material 11 is divided along the slits 32, and the sheet material 41 of the second fireproof member 30B not to be in contact with the wiring and piping material 11 is divided. It does not have to be.

The fireproof member 30 may be constituted only by the base portion 31 and the sheet member 41 may be omitted.
The sheet material 41 may be attached only to the second surface 31 b of the base 31 or may be attached only to the first surface 31 a.

In the embodiment, although the first fireproof member 30A and the second fireproof member 30B are used in combination, the fireproof member 30 may have only one thickness, and only the fireproof member 30 of the same thickness may be used.
The slits 32 of the fireproof member 30 may be omitted. Even in this case, the base portion 31 deforms following the outer surface shape of the wiring / pipe material 11 and is in pressure contact with the outer surface of the wiring / pipe material 11 by a reaction force.

The number of slits 32 of the fireproof member 30 may be changed as appropriate.
The slits 32 of the fireproof member 30 may not be formed at equal intervals in the longitudinal direction.

The depths of the plurality of slits 32 of the fireproof member 30 may not all be the same but may be different.
The depth of the slits 32 may be smaller than half the thickness of the base 31.

  The slit 32 of the fireproof member 30 may have a shape other than the shape extending in the lateral direction of the base 31. For example, the slit 32 may extend in the longitudinal direction of the base 31 or may be in the shape of a cross extending in the lateral direction and the longitudinal direction.

The thickness of the fireproof member 30 may be set to three or more. Even in this case, it is preferable to make the thickness of the fireproof member 30 in contact with the outer peripheral surface of the wiring / pipe material 11 the smallest.
The fireproof member 30 may not be provided with the slit 32 before construction, and the sheet material 41 and the base 31 may be cut at the same time to form the slit 32 in the base 31 at the time of construction.

  The fireproof member 30 may not be in the form of a rectangular flat plate. For example, the fireproof member 30 may have a flat plate shape in which the first surface 31a and the second surface 31b have a square shape, or has a flat plate shape in which the first surface 31a and the second surface 31b have an oblong shape. It is also good.

The through holes Wa of the fire prevention partition wall W may not be rectangular holes, but may be circular holes or elliptical holes.
Next, technical ideas that can be grasped from the above embodiment and another example will be additionally described below.

(1) A fireproof member accommodated between an inner surface of a through hole which penetrates a fire protection partition wall in a thickness direction and an outer surface of a through member inserted in the through hole,
A flat base made of a foam having thermal expansion performance, and a slit extending from one surface in the thickness direction toward the other surface in the base, and the other of the slits in the thickness direction of the base And a connecting portion located on the surface side of the housing.

(2) The fireproof member according to the technical idea (1), wherein a plurality of the slits are provided in a direction in which one side edge of the base extends.
(3) The fireproof member according to the technical idea (2), wherein the plurality of slits are parallel to each other when the base is viewed in the thickness direction.

  (4) The dimension of the slit along the thickness direction of the base is greater than the dimension of the connecting portion along the thickness direction, according to any one of technical ideas (1) to (3). Fireproof member.

(5) The fireproof member according to any one of the technical ideas (1) to (4), wherein the connection part can be cut by hand.
(6) A method of constructing a fire protection structure in a fire protection partition in which a long penetrating member is inserted through a through hole penetrating the fire protection partition in the thickness direction,
Between the outer surface located in the through hole in the through member and the inner surface of the through hole, there is provided a flat base made of a foam having a thermal expansion performance, and one of the base in the thickness direction A plurality of fireproof members provided with a slit extending from the surface toward the other surface and a connecting portion positioned on the other surface side of the slit in the thickness direction of the base are accommodated, and the slit is triggered And cutting the connection portion with a human hand or a manual cutting tool to form a fireproof member for clearance obtained by dividing the base portion, and the fireproof member for clearance is formed between the outer surface of the penetrating member and the inner surface of the through hole. A method of constructing a fire protection structure in a fire protection compartment wall characterized by stuffing into a gap formed between the two.

(7) A fireproof member accommodated between an inner surface of a through hole which penetrates a fire protection partition wall in a thickness direction and an outer surface of a through member inserted in the through hole,
A block-like base made of foam having thermal expansion performance;
What is claimed is: 1. A fireproof member comprising: a base member attached to each base so as to unite a plurality of the bases in an aligned state, and breakable by a human hand or a manual cutting tool.

  (8) The fireproof member according to the technical idea (7), wherein the base member is less flexible than the base.

  W ... fire prevention partition wall, Wa, 50a ... penetration hole, 11 ... wiring and piping material as penetration member, 30 ... fireproof member, 31 ... base, 31c ... long side edge as side edge, 32 ... slit, 33 ... connection Part, 41 ... sheet material.

Claims (7)

It is a fireproof member accommodated between the inner surface of the penetration hole provided in the fire protection partition wall, and the outer surface of the penetration member penetrated by the penetration hole,
A flat base made of foam having thermal expansion performance;
A fireproof member comprising: a sheet material attached to at least one of the surfaces located at both ends in the thickness direction of the base.   The surface of the base portion to which the sheet material is attached has a shape having at least a pair of opposing side edges, and the sheet material is attached along at least one side edge. Fireproof member.   The fireproof member according to claim 1, wherein the sheet material is attached to the entire surface located at both ends in the thickness direction of the base.   The fire resistant member as described in any one of Claims 1-3 in which the frictional resistance in the surface of the said sheet material is smaller than the frictional resistance of the surface of the said base.   The slit has a slit extending from one surface in the thickness direction of the base toward the other surface to divide the base, and a connecting portion positioned on the other surface side of the slit in the thickness direction of the base. The fireproof member as described in any one of Claims 1-4. It is a fireproof member accommodated between the inner surface of the penetration hole provided in the fire protection partition wall, and the outer surface of the penetration member penetrated by the penetration hole,
A block-like base made of foam having thermal expansion performance;
A fireproof member comprising: a sheet material attached to one surface of each base so as to unite a plurality of the bases in an arrayed state and maintaining the juxtaposed state of the bases.   The fireproof member according to any one of claims 1 to 6, wherein the sheet material is made of non-woven fabric.