JP2019141336A - Fire resistant structure, fire resistant implement and blocking member - Google Patents

Abstract

To provide a fire resistant structure more reliably blocking a penetration part of a fireproof compartment.SOLUTION: A fire resistant structure is such that: a wiring/piping material is inserted into a penetration part penetrating a fireproof compartment of a building in an axial direction; and a fire resistant implement is installed between the inner peripheral surface of the penetration part and the outer peripheral surface of the wiring/piping material. The fire resistant implement includes: a fire resistant implement body made from heat expansion material expanded due to heat, fixed to the inside of the penetration part, and surrounding the outer peripheral surface of the wiring/piping material with a prescribed clearance; and a blocking member compressively deformed so as to block the clearance between the fire resistant implement and the wiring/piping material by internally inserting the wiring/piping material. The blocking member is provided with a plurality of groove parts splitting the inner peripheral part of the blocking member facing the outer peripheral surface of the wiring/piping material into a plurality of split pieces in the axial direction. The plurality of split pieces are compressively deformed in each other individually in the axial direction and closely contact to the outer peripheral surface of the wiring/piping material.SELECTED DRAWING: Figure 2

Description

  TECHNICAL FIELD The present invention relates to a fireproof structure in which a fireproof measure is applied to a penetration portion of a fireproof compartment of a building, and relates to a fireproof tool and a closing member used in the fireproof structure.

  Conventionally, when wiring and piping materials such as cables and protective pipes (flexible pipes) are pierced through a fire prevention compartment of a building, a through portion is drilled in the fire prevention compartment and wiring is provided in the penetration portion.・ Install piping materials. In such a fire prevention compartment, it is required to take a fire prevention measure in the penetration portion. That is, when a fire or the like occurs in the space on the front side of one wall of the fire prevention compartment, flame, smoke, toxic gas, etc. generated on the one side should be prevented from flowing into the other side space through the penetration part. The penetration must be completely occluded. And the fireproof structure like patent document 1 which seals between a penetration part and wiring and piping material at the time of a fire is proposed.

  Patent document 1 is disclosing the fireproof structure of a penetration part. Hereinafter, in the paragraph, reference numerals of Patent Document 1 are shown in parentheses. The fire-resistant structure of the penetration part provided in the fire prevention partition wall (W) of the building has the conduit (14) inserted through the through-hole (Wa), and the inner peripheral surface of the through-hole (Wa) and the conduit (14). A thermally expansible fire-resistant tool (11) is provided between the outer peripheral surface of each of these. In this fire-resistant structure of the penetrating portion, the thermally expandable fire-resisting tool (11) is arranged so as to surround the outer peripheral surface of the conduit tube (14) with a gap (Ka) therebetween, and is fixed to the fire-proof partition wall (W). ing. The gap (Ka) is filled with an annular filler (21) made of one foamable material (for example, sponge) as a closing member, and the gap (Ka) is blocked by the filler (21). Yes. The filler (21) is pushed into the gap (Ka) in a state where the inner diameter and the outer diameter are reduced, that is, in a compressed state. The filler (21) has an inner peripheral surface in close contact with the outer peripheral surface of the conduit tube (14) and an outer peripheral surface in close contact with the inner peripheral surface of the refractory body (12). The filler (21) does not fill the gap (Ka) until the tongue (16c) is pushed away and reaches the back of the through hole (Wa), and the refractory body (12) is not filled by the tongue (16c). It is prevented from jumping out.

JP 2014-7892 A

  In a conventional fireproof structure such as Patent Document 1, a single foamable material is filled so as to close a gap between the wiring / pipe material and the fireproof body. However, in such a conventional fire-resistant structure, since one foamable material is changed as a whole, a gap is easily formed between the wiring and the piping material. In particular, the wiring / piping material is not linear due to curling or the like, the outer shape of the wiring / piping material itself is uneven, or an object between the wiring / piping material and the foamable material (fireproof in Patent Document 1). In the case where the tongue of the tool body is interposed, a gap is likely to be formed at least along the axial direction of the wiring / piping material. Due to the presence of such a gap, the blocking rate of the penetrating portion is reduced, and there is a problem that there is a high possibility that flames, smoke, toxic gases, and the like pass through the fire prevention compartment in the event of a fire.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fireproof structure, a fireproofing tool, and a closing member that more reliably close the through portion of the fireproof compartment.

The fireproof structure according to one aspect of the present invention is configured such that a wiring / piping material is inserted through a penetration portion formed through a fireproof compartment of a building, and an inner circumferential surface of the penetration portion and an outer circumferential surface of the wiring / piping material. Is a fire-resistant structure in which a fire-resistant tool is provided between
The refractory is
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A closing member that is compressed and deformed so as to close the gap between the refractory main body and the wiring / piping material by interpolating the wiring / piping material,
The closing member includes a plurality of groove portions that axially divide an inner peripheral portion of the closing member that faces an outer peripheral surface of the wiring / pipe material, and a plurality of divided pieces formed between the plurality of groove portions, The plurality of divided pieces are individually compressed and deformed in the axial direction and are in close contact with the outer peripheral surface of the wiring / pipe material.

  According to the fireproof structure of the present invention, a plurality of grooves that divide the inner peripheral portion into a plurality of divided pieces in the axial direction are formed on the inner peripheral portion of the compression-deformable closing member that surrounds the outer peripheral surface of the wiring / pipe material. Is provided. And the groove part is formed in the inner peripheral part surface by the predetermined groove depth, and it divides | segments so that adjacent division | segmentation piece can be deform | transformed individually and freely in an axial direction. Thereby, the inner peripheral part of the blocking member divided in the axial direction by the groove part can be deformed more randomly and fluidly according to the shape of the object to be contacted. In other words, even if the outer surface shape of the wiring / pipe material in the axial direction is not simple due to factors such as curling, the inner peripheral portion of the blocking member has a relatively complicated shape for each divided piece of the wiring / pipe material. By individually compressing and deforming, it is possible to satisfactorily adhere to the outer surface of the wiring / pipe material in the axial direction. Therefore, in the fireproof structure of the present invention, the closing member can more reliably close the gap between the wiring / piping material and the fireproofing tool body.

The fireproof structure according to one aspect of the present invention is configured such that a wiring / piping material is inserted through a penetration portion formed through a fireproof compartment of a building, and an inner circumferential surface of the penetration portion and an outer circumferential surface of the wiring / piping material. Is a fire-resistant structure in which a fire-resistant tool is provided between
The refractory is
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A closing member that is compressed and deformed so as to close the gap between the refractory main body and the wiring / piping material by interpolating the wiring / piping material,
At least one spiral groove portion extending in the axial direction is formed in the inner peripheral portion of the closing member facing the outer peripheral surface of the wiring / piping material, and the groove portion is the entire inner peripheral portion of the closing member. The inner peripheral portion of the closing member is divided into three or more divided pieces in the axial direction, and the plurality of divided pieces are individually compressed and deformed in the axial direction on the outer peripheral surface of the wiring / pipe material. It is characterized by being in close contact.

  According to the fireproof structure of the present invention, the inner peripheral portion of the compression-deformable closing member that surrounds the outer peripheral surface of the wiring / pipe material has a spiral shape that divides the inner peripheral portion into at least three divided pieces in the axial direction. The groove portion is provided. And the groove part is formed in the inner peripheral part surface by the predetermined groove depth, and it divides | segments so that adjacent division | segmentation piece can be deform | transformed individually and freely in an axial direction. Thereby, the inner peripheral part of the blocking member divided in the axial direction by the groove part can be deformed more randomly and fluidly according to the shape of the object to be contacted. In other words, even if the outer shape of the wiring / pipe material is not simple due to factors such as curling, the inner peripheral part of the closing member individually follows the relatively complicated shape of the wiring / piping material. Then, by compressing and deforming, it is possible to satisfactorily adhere to the outer peripheral surface of the wiring / pipe material in the axial direction. Therefore, in the fireproof structure of the present invention, the closing member can more reliably close the gap between the wiring / piping material and the fireproofing tool body.

  The fireproof structure according to a further aspect of the present invention is the fireproof structure according to the above aspect, wherein the groove is formed with a radial depth that does not reach the outer peripheral portion of the closing member, and the plurality of divided pieces are the outer periphery of the closing member. It is characterized in that it is connected at the part. That is, while the groove portion is not completely cut off the wall portion of the closing member and the plurality of divided pieces are connected at the outer periphery portion of the closing member, while ensuring the adhesion to the outer peripheral surface of the wiring / pipe material, It becomes easy to carry and install the closing member.

  The fireproof structure according to a further aspect of the present invention is the fireproof structure according to the above aspect, wherein the groove reaches from the inner periphery to the outer periphery of the closing member so as to cut the closing member in the radial direction, and is adjacent thereto. The divided pieces are separated at the outer peripheral portion of the closing member, and the adjacent divided pieces in the gap are deformed and brought into close contact with each other. In other words, since the adjacent divided pieces are separated in the axial direction in a block shape by the grooves that cut the wall portion of the closing member in the axial direction or spirally, the independence of each divided piece in compression deformation is further improved. Thus, the blockage between the wiring / pipe material and the fireproof body can be enhanced. In the present specification, the “groove portion” is defined as an element that divides the inner peripheral portion of the closing member, and is a concept that includes a space that completely separates the peripheral wall portion of the closing member.

  According to a further aspect of the fireproof structure of the present invention, in the fireproof structure according to the one aspect, the closing member connects at least a part of the adjacent divided pieces of the plurality of divided pieces on an outer peripheral side of the closing member. It is further provided with a connection object. That is, by connecting the divided pieces separated from each other by the outer peripheral portion of the closing member, it is easy to carry and install the closing member while maintaining high independence in compression deformation of each divided piece.

  According to a further aspect of the fireproof structure of the present invention, in the fireproof structure of the above aspect, the closing member further includes a plurality of vertical groove portions that divide the inner peripheral portion into a plurality of portions in a circumferential direction, and the diameter of the divided pieces. The inner end surface in the direction is divided into a plurality of portions in the circumferential direction. That is, the vertical groove is formed on the inner peripheral surface with a predetermined groove depth, and the divided pieces are further divided so as to be individually and freely deformable in the circumferential direction. Therefore, the radially inner end face of each divided piece is subdivided in the circumferential direction. Thereby, the inner peripheral portion of the closing member divided in the circumferential direction by the longitudinal groove portion can be more randomly and fluidly deformed in accordance with the outer peripheral shape of the object to be contacted in the circumferential direction.

  According to a further aspect of the fireproof structure of the present invention, in the fireproof structure according to the aspect described above, in the divided pieces adjacent in the axial direction among the plurality of divided pieces, the vertical groove portion is shifted in the circumferential direction. . Since the circumferential position of the longitudinal groove portion is different between the divided pieces, the divided pieces are more deformed and compressed more irregularly. Thereby, it becomes possible to deform | transform the inner peripheral part of a closure member more randomly and fluidly according to the shape of the object which contact | abuts.

  According to a further aspect of the fireproof structure of the present invention, in the fireproof structure according to the one aspect described above, in the original shape before compression deformation of the closing member, the adjacent divided bodies are spaced apart from each other across the groove portion, and the gap is separated. In the compression shape installed in the above, the compression-deformed divided body occupies each groove portion. That is, the groove part that separates the adjacent divided pieces guides deformation of the divided body in the axial direction when the closing member is compressed and deformed as a whole, and promotes deformation of the divided body more freely.

In one embodiment of the present invention, the fireproofing tool is configured such that a wiring / piping material is inserted through a penetration portion formed through a fireproof compartment of a building, and an inner circumferential surface of the penetration portion and an outer circumferential surface of the wiring / piping material. A fireproof device provided between and
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A compression-deformable closing member that interpolates the wiring / piping material and closes a gap between the refractory main body and the wiring / piping material,
The closing member includes a plurality of groove portions that axially divide an inner peripheral portion of the closing member that faces an outer peripheral surface of the wiring / pipe material, and a plurality of divided pieces formed between the plurality of groove portions, The plurality of divided pieces are individually compressed and deformed in the axial direction and are in close contact with the outer peripheral surface of the wiring / pipe material.

  According to the refractory of the present invention, the inner peripheral portion of the compressible deformable closing member surrounding the outer peripheral surface of the wiring / pipe material has a plurality of groove portions that divide the inner peripheral portion into a plurality of divided pieces in the axial direction. Is provided. And the groove part is formed in the inner peripheral part surface by the predetermined groove depth, and it divides | segments so that adjacent division | segmentation piece can be deform | transformed individually and freely in an axial direction. Thereby, the inner peripheral part of the blocking member divided in the axial direction by the groove part can be deformed more randomly and fluidly according to the shape of the object to be contacted. In other words, even if the outer shape of the wiring / pipe material is not simple due to factors such as curling, the inner peripheral part of the closing member individually follows the relatively complicated shape of the wiring / pipe material. By compressing and deforming, it is possible to satisfactorily adhere to the outer surface of the wiring / pipe material in the axial direction. Therefore, in the refractory tool of the present invention, the closing member can more reliably close the gap between the wiring / pipe material and the refractory body.

In one embodiment of the present invention, the fireproofing tool is configured such that a wiring / piping material is inserted through a penetration portion formed through a fireproof compartment of a building, and an inner circumferential surface of the penetration portion and an outer circumferential surface of the wiring / piping material. A fireproof device provided between and
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A compression-deformable closing member that interpolates the wiring / piping material and closes a gap between the refractory main body and the wiring / piping material,
At least one spiral groove portion extending in the axial direction is formed in the inner peripheral portion of the closing member facing the outer peripheral surface of the wiring / piping material, and the groove portion is the entire inner peripheral portion of the closing member. The inner peripheral portion of the closing member is divided into three or more divided pieces in the axial direction, and the plurality of divided pieces are individually compressed and deformed in the axial direction on the outer peripheral surface of the wiring / pipe material. It is characterized by being in close contact.

  According to the fireproof device of the present invention, the inner peripheral portion of the compression-deformable closing member that surrounds the outer peripheral surface of the wiring / pipe material has a spiral shape that divides the inner peripheral portion into at least three divided pieces in the axial direction. The groove portion is provided. And the groove part is formed in the inner peripheral part surface by the predetermined groove depth, and it divides | segments so that adjacent division | segmentation piece can be deform | transformed individually and freely in an axial direction. Thereby, the inner peripheral part of the blocking member divided in the axial direction by the groove part can be deformed more randomly and fluidly according to the shape of the object to be contacted. In other words, even if the outer shape of the wiring / pipe material is not simple due to factors such as curling, the inner peripheral part of the closing member individually follows the relatively complicated shape of the wiring / piping material. By compressing and deforming, it is possible to satisfactorily adhere to the outer surface of the wiring / pipe material in the axial direction. Therefore, in the refractory tool of the present invention, the closing member can more reliably close the gap between the wiring / pipe material and the refractory body.

  The fireproof device according to a further aspect of the present invention is the fireproof device according to the above aspect, wherein the groove portion is formed with a radial depth that does not reach the outer peripheral portion of the closing member, and the adjacent divided piece is an outer periphery of the closing member. It is characterized in that it is connected at the part. That is, while the groove portion is not completely cut off the wall portion of the closing member and the plurality of divided pieces are connected at the outer periphery portion of the closing member, while ensuring the adhesion to the outer peripheral surface of the wiring / pipe material, It becomes easy to carry and install the closing member.

  The fireproof device according to a further aspect of the present invention is the fireproof device according to the one aspect, wherein the groove portion is adjacent to the outer peripheral portion of the closing member so as to cut the closing member in a radial direction. The divided pieces are separated at the outer peripheral portion of the closing member. In other words, since the adjacent divided pieces are separated in the axial direction in a block shape by the grooves that cut the wall portion of the closing member in the axial direction or spirally, the independence of each divided piece in compression deformation is further improved. Thus, the blockage between the wiring / pipe material and the fireproof body can be enhanced.

  The fireproof device according to a further aspect of the present invention is the fireproof device according to the one aspect, wherein the closing member connects at least a part of adjacent divided pieces of the plurality of divided pieces on an outer peripheral side of the closing member. It is further provided with a connection object. That is, by connecting the divided pieces separated from each other by the outer peripheral portion of the closing member, the carrying and construction of the closing member are facilitated while maintaining the independence of each divided piece in the compression deformation.

  The fireproof device according to a further aspect of the present invention is characterized in that, in the fireproof device according to the one aspect, an axial width of the plurality of divided pieces is not uniform. That is, since the axial width of the plurality of divided pieces is not uniform, the inner peripheral portion of the closing member can be deformed more randomly as a whole, which is higher than the outer peripheral shapes of various wiring and piping materials. It becomes possible to exhibit adhesion.

  The fireproof device according to a further aspect of the present invention is the fireproof device according to one aspect described above, wherein the fireproof device is affixed to the inner peripheral portion of each divided piece between the inner peripheral portion of the closing member and the outer peripheral surface of the wiring / pipe material. A frictional resistance reducing member made up of a plurality of attached sheets is interposed. That is, the frictional resistance reducing member is interposed between the inner peripheral portion of the closing member and the outer peripheral surface of the wiring / piping material, so that the closing member allows movement of the wiring / piping material in the axial direction. It is possible to insert the wiring / pipe material into the refractory body and maintain it in the refractory body when the wiring / pipe material moves in the axial direction. Furthermore, since the frictional resistance reducing member is composed of a plurality of sheets adhered to the radially inner end face of each divided piece, the frictional resistance between the radially inner end face of each divided piece and the wiring / pipe material is effectively reduced. Can be reduced.

  According to a further aspect of the fire resistant device of the present invention, in the fire resistant device according to the one aspect, the closing member further includes a plurality of vertical groove portions that divide the inner peripheral portion into a plurality of portions in a circumferential direction, and the diameter of the divided piece. The inner end surface in the direction is divided into a plurality of portions in the circumferential direction. That is, the vertical groove is formed on the inner peripheral surface with a predetermined groove depth, and the divided pieces are further divided so as to be individually and freely deformable in the circumferential direction. Therefore, the radially inner end face of each divided piece is subdivided in the circumferential direction. Thereby, the inner peripheral portion of the closing member divided in the circumferential direction by the longitudinal groove portion can be more randomly and fluidly deformed in accordance with the outer peripheral shape of the object to be contacted in the circumferential direction.

  The fireproof device according to a further aspect of the present invention is characterized in that, in the fireproof device according to the one aspect described above, in the divided pieces adjacent in the axial direction among the plurality of divided pieces, the vertical groove portion is shifted in the circumferential direction. . Since the circumferential position of the longitudinal groove portion is different between the divided pieces, the divided pieces are more deformed and compressed more irregularly. Thereby, it becomes possible to deform | transform the inner peripheral part of a closure member more randomly and fluidly according to the shape of the object which contact | abuts.

  According to another aspect of the present invention, there is provided the fireproof device according to the one aspect, wherein in the original shape before the compression deformation of the closing member, the adjacent divided bodies are spaced apart from each other across the groove portion, and the gap is separated. In the compressed shape installed in the above, the compression-deformed divided body can occupy the groove. That is, the groove part that separates the adjacent divided pieces guides deformation of the divided body in the axial direction when the closing member is compressed and deformed as a whole, and promotes deformation of the divided body more freely.

  According to a further aspect of the refractory of the present invention, in the refractory of the above aspect, the divided pieces adjacent in the axial direction among the plurality of divided pieces have different compression ratios. In other words, by deforming adjacent divided pieces at different compression rates, the inner peripheral part of the closing member can be deformed more randomly as a whole, and high adhesion to the outer peripheral shape of various wiring and piping materials Can be achieved.

  The fireproof device according to a further aspect of the present invention is the fireproof device according to the one aspect described above, wherein the plurality of divided pieces include a first divided piece and a second divided piece, and the first piece is larger than the radial thickness of the first divided piece. The thickness in the radial direction of the two divided pieces is small, and the compression rate of the second divided piece is larger than the compression rate of the first divided piece. That is, by compressing and deforming a larger first divided piece than the second divided piece among a plurality of divided pieces, the inner peripheral portion of the closing member can be deformed more randomly as a whole. It is possible to exhibit high adhesion to the outer peripheral shape of the wiring / piping material.

  According to a further aspect of the refractory of the present invention, in the refractory of the above aspect, the divided pieces are formed of three or more in the axial direction of the inner peripheral portion of the closing member. That is, as the number of divided pieces stacked in the axial direction is increased, finer irregularities in the axial direction of the wiring / pipe material can be effectively blocked.

  According to a further aspect of the refractory of the present invention, in the refractory of the above aspect, the closing member has a thermal expansion property that expands by heat. That is, since the closing member is thermally expandable, it is possible to more reliably close the penetrating portion by thermally expanding together with the fireproof body in a fire.

  According to a further aspect of the fireproof device of the present invention, in the fireproof device of the above aspect, the fireproof device body has a cushioning property. That is, since the fireproof body has cushioning properties, the outer peripheral surface of the fireproof body and the inner peripheral surface of the penetrating portion can be brought into closer contact with each other.

  The fireproof device according to a further aspect of the present invention is characterized in that, in the fireproof device according to the one aspect described above, the fireproof device main body has a latching portion that latches on a peripheral edge of the penetration portion of the fireproof compartment. That is, by placing the latching portion of the fireproofing tool main body in contact with the periphery of the penetrating part of the fireproof compartment, it is easy to install the fireproofing tool on the penetrating part.

  A fireproof device according to a further aspect of the present invention is the fireproof device according to the one aspect described above, including a cylindrical portion that inserts the fireproof device main body, and a flange portion that protrudes from an outer periphery of the cylindrical portion, and an inner periphery of the through portion. An outer frame is further provided between the surface and the outer peripheral surface of the refractory body. That is, it is possible to easily dispose the outer frame with respect to the penetrating portion by bringing the flange portion of the outer frame into contact with the periphery of the penetrating portion, and the outer frame regardless of the shape of the inner peripheral surface of the penetrating portion. It is possible to stably hold the refractory body in the tube portion.

  In a further aspect of the fireproof device according to the present invention, in the fireproof device of the above-described form, the fireproof device main body or the closing member forms an opening for disposing the wiring / pipe material from the radial direction inside. It has a slit part which divides | segments a wall part along an axial direction, It is characterized by the above-mentioned. The wiring / piping material can be arranged in the fireproof body or the closing member from the radial direction through the slit portion. Thereby, a fireproofing tool can be attached afterwards with respect to the wiring and piping material previously arrange | positioned by the wall hole.

According to one aspect of the present invention, there is provided a fire-resistant structure provided in a through-hole formed through a fireproof compartment of a building. A closing member for closing,
It consists of an annular compression-deformable sponge body having an inner periphery and an outer periphery,
A plurality of groove portions that divide the inner peripheral portion of the closing member facing the outer peripheral surface of the wiring / piping material into a plurality of divided pieces in the axial direction,
The plurality of divided pieces may be individually compressed and deformed in the axial direction so as to be in close contact with the outer peripheral surface of the wiring / piping material.

  According to the closing member of the present invention, the inner peripheral portion of the compressible deformable closing member that surrounds the outer peripheral surface of the wiring / pipe material has a plurality of groove portions that divide the inner peripheral portion into a plurality of divided pieces in the axial direction. Is provided. And the groove part is formed in the inner peripheral part surface by the predetermined groove depth, and it divides | segments so that adjacent division | segmentation piece can be deform | transformed individually and freely in an axial direction. Thereby, the inner peripheral part of the blocking member divided in the axial direction by the groove part can be deformed more randomly and fluidly according to the shape of the object to be contacted. In other words, even if the outer shape of the wiring / pipe material is not simple due to factors such as curling, the inner peripheral part of the closing member individually follows the relatively complicated shape of the wiring / piping material. By compressing and deforming, it is possible to satisfactorily adhere to the outer surface of the wiring / pipe material in the axial direction. Therefore, the closing member of the present invention can more reliably close the gap generated around the wiring / pipe material in the through portion due to the shape of the wiring / pipe material.

  According to the present invention, with respect to the penetrating portion formed in the fire prevention compartment, the closing member more reliably closes the gap between the wiring / piping material and the fireproof body, and more effective fireproofing can be performed. Is possible.

The schematic perspective view of the fireproof structure of one Embodiment of this invention. The disassembled perspective view of the fireproof tool of one Embodiment of this invention. The perspective view seen from the (a) front of the refractory main body of the refractory of FIG. 2, and (b) seen from the back. The (a) front view, (b) rear view, and (c) AA sectional view of the refractory body of FIG. The (a) perspective view and (b) front view of the closure member of the fireproofing tool of FIG. (A) BB sectional drawing and (b) CC sectional drawing of the refractory of FIG. FIG. 2 is a schematic sectional view of the fireproof structure of FIG. 1. Schematic which shows one process of constructing the fireproof structure of FIG. The (a) perspective view, (b) front view, and (c) DD sectional view of the closure member of another embodiment of the present invention. FIG. 10 is a schematic cross-sectional view of a fireproof structure using the closing member of FIG. 9. (A) EE sectional drawing and (b) FF sectional drawing of the fireproof structure of FIG. The (a) perspective view, (b) front view, and (c) GG sectional drawing of the obstruction | occlusion member of another embodiment of this invention. The schematic sectional drawing of the fireproof structure of another embodiment of this invention. The schematic exploded perspective view of the closure member of another embodiment of the present invention. The longitudinal cross-sectional view of the closure member of FIG. (A) HH sectional view, (b) II sectional view, and (c) JJ sectional view of the closing member of FIG. The (a) perspective view and (b) front view of the closure member of another embodiment of the present invention. The (a) perspective view and (b) front view of the closure member of another embodiment of the present invention. The schematic exploded perspective view of the closure member of another embodiment of the present invention. The (a) front view and (b) KK sectional drawing of the closure member of FIG. The schematic exploded perspective view of the closure member of another embodiment of the present invention. (A) Front view and (b) LL sectional drawing of the obstruction | occlusion member of FIG. The schematic sectional drawing of the fireproof structure of another embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings. In addition, the vertical and horizontal directions in the present invention are merely a concept indicating a relative position, and needless to say, these can be applied interchangeably.

  The fire-resistant structure 10 of the present embodiment is configured such that when a fire or the like occurs in the space on the one wall front side of the fire prevention compartment 12, the flame, smoke, toxic gas, or the like generated on one side flows into the space on the other side. It is a wall structure that partitions both spaces so as to prevent. FIG. 1 is a schematic perspective view of the fireproof structure 10.

  As shown in FIG. 1, the fireproof structure 10 includes a wiring / pipe material 14 inserted through a through-hole 13 formed so as to penetrate the fire-proof compartment 12 of a building in the axial direction (thickness direction). A refractory 11 is provided between the inner peripheral surface and the outer peripheral surface of the wiring / pipe material 14.

  The fire protection compartment 12 of the present embodiment is a fire wall with a predetermined thickness that is vertically or vertically erected. The fire protection compartment 12 may be composed of a gypsum board or a concrete wall. A through-hole 13 having a diameter through which the wiring / pipe material 14 having a predetermined thickness can be penetrated is formed in the fire prevention compartment 12. The penetrating portion 13 has a perfect circular shape, and its inner diameter is formed to be substantially the same (slightly larger) as the outer diameter of the cylindrical portion 111 of the refractory 11. In addition, the fireproof compartment of this invention is a concept also including structures, such as a ceiling and a floor for fireproof compartments, and is not limited to the form of this embodiment. In addition, examples of the wiring / piping material 14 of the present embodiment include wiring materials such as power transmission cables, control cables, coaxial cables, and optical cables, and piping materials such as synthetic resin flexible protective tubes and bellows tubes. The wiring / piping material of the present invention is a broad concept meaning various long materials, and is not limited thereto.

  As shown in FIG. 2, the refractory 11 of the present embodiment is made of a heat-expandable material that expands due to heat, and the through-hole 13 so as to surround the outer peripheral surface of the wiring / piping material 14 with a predetermined gap 15 therebetween. And a closing member 120 that is compressed and deformed so as to close the gap 15 between the refractory main body 110 and the wiring / piping material 14 by inserting the wiring / piping material 14 therein. In this embodiment, the closing member 120 is integrally bonded to the refractory body 110 with an adhesive, but the present invention is not limited to this. Hereinafter, each member which comprises the fireproof tool 11 of this embodiment is demonstrated in detail.

  The refractory body 110 of the present embodiment is integrally formed of a thermally expandable material that expands by heat and can maintain its original shape. More specifically, the heat-expandable material is a heat-expandable rubber, and when this heat-expandable rubber is exposed to high heat (for example, 300 ° C. or higher), an expandable material whose volume expands more than twice that before heating ( Rubber obtained by mixing (expanded graphite) and molding into a predetermined shape (after the molding process) is subjected to a vulcanization process. The vulcanization step is a step of applying heat to the rubber that has undergone the molding step to cause a vulcanization (crosslinking) reaction or an adhesion reaction to obtain a product having rubber elasticity. The refractory main body 110 is elastically deformable and maintains a cylindrical shape (shape) by the thermally expandable rubber itself.

  As shown in FIGS. 3 and 4, the fireproof device main body 110 includes a cylindrical portion 111 formed in a hollow cylindrical shape disposed in the penetration portion 13 of the fire prevention compartment 12, and one end side of the cylindrical portion 111. It comprises a plate-like flange portion 112 projecting integrally outward and a closing portion 113 for closing the opening on the other end side of the tubular portion 111.

  The cylindrical portion 111 is an annular body that opens to one end side and extends linearly from one end to the other end with a uniform diameter along the axial direction. The inner peripheral surface of the hollow cylindrical tubular portion 111 has a circular shape in cross section, and an insertion space into which the wiring / pipe material 14 can be inserted is defined on the inner side of the inner peripheral surface. Yes. On the other hand, the outer shape (contour) of the cylindrical portion 111 is defined by an outer peripheral surface having a circular shape in cross section. That is, a thick portion (thermally expansible material) between the inner peripheral surface and the outer peripheral surface of the cylindrical portion 111 is disposed between the inner peripheral surface of the through portion 13 and the outer peripheral surface of the wiring / pipe material 14.

  The outer diameter of the cylindrical portion 111 is formed to be substantially the same as the diameter of the penetrating portion 13, and the shape (circular shape) of the outer peripheral surface and the shape (circular shape) of the penetrating portion 13 are substantially the same. Further, the inner diameter of the cylindrical portion 111 is larger than the diameter of the wiring / piping material 14, and when the wiring / piping material 14 is inserted into the insertion space, the inner peripheral surface of the cylindrical portion 111 and the outer peripheral surface of the wiring / piping material 14. A gap of a predetermined size is formed between the two. The inner diameter of the cylindrical portion 111 is larger than the thickness of the cylindrical wall (difference between the outer radius and the inner radius of the cylindrical portion 111). The thickness of the cylindrical wall of the refractory main body 110 is heated by heat generated by a fire or the like, expands in the inner diameter direction of the cylindrical portion 111 and closes the insertion space (that is, fills the inner space of the inner peripheral surface). It is preferable that the thickness be able to be adjusted.

  The flange portion 112 is formed thin in the entire circumferential direction of the tubular portion 111 so as to extend in the radial direction from the outer peripheral edge of one end of the tubular portion 111. The outer edge that defines the contour of the flange portion 112 has a circular shape, and the diameter thereof is larger than the diameter of the through portion 13. That is, the flange portion 112 can be brought into contact with the peripheral wall surface of the penetrating portion 13 on the back surface thereof, and functions as a hooking portion that is hooked on the peripheral portion of the penetrating portion 13 of the fire prevention compartment 12.

  The closing portion 113 is formed in a thin shape like the flange portion 112 and closes the other end of the tubular portion 111. The closing part 113 is divided into a plurality of cuts passing through the center thereof. That is, the closing portion 113 is formed with a plurality of tongue pieces 113a that extend radially inward (center side) from the inner peripheral surface at the other end of the cylindrical portion 111. Each tongue piece 113a is elastically deformable along the axial direction with the base end as a fulcrum. By elastically deforming the tongue piece 113a, the closing portion 113 is deformed so as to be able to pass through the wiring / pipe material 14 so as to open the other end side end face of the cylindrical portion 111. And in this closing part 113, after inserting the wiring and piping material 14, the tongue piece 113a will elastically return, each tongue piece 113a will contact | adhere to the outer surface of the wiring and piping material 14, and will close an end surface again. (See FIG. 7).

  The cylindrical portion 111 is formed with a slit portion 114 that extends over the entire axial direction and extends in a direction (radial direction) orthogonal to the axial direction. And the slit part 114 cut | disconnects the cylindrical wall and the flange part 112 of the cylindrical part 111 along the whole axial direction, and is dividing | segmenting the wall part of an internal peripheral surface and an outer peripheral surface into an axial direction. The cylindrical portion 111 is elastically deformed outward, whereby the slit portion 114 is opened. That is, the wiring / pipe material 14 can be inserted into the insertion space from the radial direction via the slit 114. The slit portion 114 is one of a plurality of cuts for forming the tongue piece 113a, and is used for forming the tongue piece 113a.

  The closing member 120 is configured to be compressively deformable so as to be filled in a gap between the wiring / piping material 14 and the refractory body 110. The closing member 120 is formed of a flame-retardant foaming material (for example, sponge) such as a urethane foam that can maintain its original shape and can be compressed and deformed. The closing member 120 is a non-thermally expandable or thermally expandable foam. The thermally expandable foam is formed by dispersing unfired vermiculite, expanded graphite, or the like as a thermally expandable material that expands by heat.

  As shown in FIGS. 5 and 6, the closing member 120 includes a hollow cylindrical (or annular) sponge body 121 that extends in the axial direction and opens at both axial ends. The sponge body 121 has a thick peripheral wall (or wall) extending in the axial direction. On the inner peripheral surface of the blocking member 120 (sponge body 121), an inner peripheral portion 122 that faces the outer peripheral surface of the wiring / pipe material 14 is defined. An insertion portion for inserting the wiring / piping material 14 is defined in the inner space inside the inner peripheral portion 122. The diameter of the inner peripheral portion 122 of the closing member 120 is smaller than the outer diameter of the wiring / pipe material 14. The diameter of the inner peripheral portion 122 of the closing member 120 can be determined according to the planned diameter of the wiring / piping material 14, but in the original shape, the insertion portion (the tip of each divided piece 126 is It may be defined as a very small diameter hole (so that it contacts the center). That is, even if the inner diameter of the closing member 120 is significantly smaller than the diameter of the wiring / piping material 14, if the wiring / piping material 14 is forcibly inserted into the insertion portion, the inner peripheral portion 122 is compressed and deformed outward. While being pushed out. As the diameter of the inner peripheral portion 122 is smaller, the amount of compression of the sponge body 121 increases and the adhesion to the wiring / pipe material 14 becomes stronger. In addition, an outer peripheral portion 123 that faces the inner peripheral surface of the refractory body 110 is defined on the outer peripheral surface of the closing member 120. The diameter of the outer peripheral portion 123 of the closing member 120 is substantially the same as the diameter of the inner peripheral surface of the refractory main body 110 or larger (so as to be inserted by compression deformation). In addition, the radial thickness of the closing member 120 (the distance along the radial direction between the inner peripheral portion 122 and the outer peripheral portion 123) is larger than the radial thickness of the cylindrical portion 111 of the refractory body 110. That is, when the wiring / piping material 14 is disposed in the insertion portion of the closing member 120 with the closing member 120 inserted into the fireproof body 110, the sponge body 121 is compressed and deformed, The dimensional shape of the closing member 120 is determined so as to close (preferably completely) the gap with the refractory body 110. In other words, the volume of the closing member 120 is at least larger than the volume of the gap between the assumed refractory body 110 and the wiring / piping material 14. The volume of the closing member 120 is preferably formed to be 15% or more larger than the gap.

  The closing member 120 is recessed along the circumferential direction on the surface of the inner peripheral portion 122, and a plurality of (two in this embodiment) groove portions that divide the inner peripheral portion 122 into a plurality of divided pieces 126 in the axial direction. 125. Specifically, as shown in FIG. 5 and FIG. 6, each groove 125 is a groove carved over the entire circumferential direction on the surface of the inner peripheral portion 122 of the sponge body 121, and on a plane orthogonal to the axial direction. It is extended. Moreover, each groove part 125 is formed in the radial direction depth which does not reach the outer peripheral part 123 of the closing member 120. That is, the plurality of divided pieces 126 are connected at the outer peripheral portion 123 of the closing member 120. In other words, the meat part left between the tip of the groove part 125 and the outer peripheral part 123 connects the adjacent divided pieces 126 to each other. In the present embodiment, each groove portion 125 has a V-shape in a front view having a predetermined width in the axial direction at the inner peripheral portion 122. Thereby, in the original shape before the compressive deformation of the closing member 120, the adjacent divided pieces 126 are separated from each other with the groove portion 125 being not in contact with each other. The groove 125 that separates the adjacent divided pieces 126 guides that the divided pieces 126 are deformed in the axial direction when the entire closing member 120 is compressed and deformed. As will be described later, when each divided piece 126 is elastically compressed and deformed, a part of the divided piece 126 is deformed so as to occupy the groove portion 125, so that the adjacent divided pieces 126 come into contact with each other without a gap (FIG. 7). reference). In the present embodiment, the plurality of groove portions 125 have the same shape and equally divide the sponge body 121 in the axial direction. And the axial direction width | variety of each division | segmentation piece 126 is uniform.

  The sponge body 121 is formed with a slit portion 127 that extends over the entire axial direction and extends in a direction (radial direction) orthogonal to the axial direction. The slit portion 127 divides the wall portion between the inner peripheral portion 122 and the outer peripheral portion 123 in the axial direction along the entire axial direction so as to be orthogonal to the groove portion 125. And this slit part 127 opens because the sponge body 121 elastically deforms outside. That is, the wiring / pipe material 14 can be inserted into the insertion portion inside the inner peripheral portion 122 from the radial direction through the opened slit portion 127. In addition, it is preferable that the closing member 120 is attached to the refractory main body 110 after the slit portion 114 of the refractory main body 110 and the slit portion 127 of the closing member 120 communicate with each other.

  Further, a frictional resistance reducing member (a plurality of sheet bodies 124) for reducing friction with the wiring / pipe material 14 is arbitrarily provided on the inner peripheral portion 122 of the closing member 120. Specifically, the frictional resistance reducing member includes a plurality of sheet bodies 124 attached to the inner peripheral portion of each divided body 126. The sheet body 124 is made of a material (for example, non-woven fabric) having a lower friction coefficient than the surface of the sponge body 121. The sheet body 124 is interposed between the outer peripheral surface of the wiring / piping material 14 and the inner peripheral portion 122 of the closing member 120, thereby reducing the frictional resistance between the wiring / piping material 14 and the closing member 120. -Allow the piping material 14 to move smoothly in the axial direction. Then, when the wiring / piping material 14 moves in the axial direction in a state where the wiring / piping material 14 is inserted into the closing member 120, the closing member 120 can be maintained in the fireproof body 110. As a material property, the coefficient of friction of the surface of the sponge body 121 of the closing member 120 is lower than the coefficient of friction of the surface of the refractory body 110 made of thermally expandable rubber. That is, the frictional force generated between the closing member 120 and the refractory main body 110 can be applied to the closing member 120 and the wiring / power Since the frictional force generated between the pipe member 14 and the piping member 14 is exceeded, the closing member 120 allows the wiring / pipe member 14 to move relative to the refractory main body 110 in the axial direction. When moving in the direction, the closing member 120 is configured to remain in the through portion 13. Therefore, the frictional resistance reducing member may be omitted.

  Based on the above description, the fireproof structure 10 of one embodiment of the present invention will be described in more detail with reference to FIGS. FIG. 7 is a longitudinal sectional view taken along the axial direction of the fireproof structure 10 of FIG.

  As shown in FIG. 7, in the fireproof structure 10, a hollow cylindrical tubular portion 111 of the fireproofing tool main body 110 is inserted into the through portion 13 of the fireproof compartment 12. As described above, since the outer diameter of the cylindrical portion 111 and the inner diameter of the through portion 13 are substantially equal, the outer peripheral surface of the cylindrical portion 111 and the inner peripheral surface of the through portion 13 are substantially in close contact. In addition, one end of the refractory main body 110 is disposed on the front side of the wall, the other end faces the back side of the wall, and the back surface of the flange portion 112 is in contact with the wall surface of the through portion 13. The refractory body 110 is fixed to the fire protection compartment 12 via a double-sided tape or the like. The closing member 120 is disposed in the insertion space in the tubular portion 111 of the fireproof body 110. In the present embodiment, the outer peripheral portion 123 of the closing member 120 is integrally bonded to the inner peripheral surface of the refractory main body 110. However, they may not be integrally bonded, and the closing member may be held on the fireproof body only by frictional force.

  Further, the wiring / pipe material 14 is disposed through substantially the center of the penetrating portion 13 so as to penetrate the fire protection compartment 12. The wiring / pipe material 14 passes through the insertion space of the fireproof body 110 and the insertion portion of the closing member 120 in the axial direction. In the present embodiment, the wiring / pipe material 14 has a curl and is slightly bent in the axial direction. And each tongue piece 113a of the closure part 113 of the fire-resistant body 110 is bent to one end (wall surface) side in the insertion space, and each tongue piece 113a is brought into close contact with the outer peripheral surface of the wiring / pipe material 14 by the elastic return force. ing.

  Then, the closing member 120 is elastically compressed and deformed from the original shape, and closes the gap between the wiring / piping material 14 and the refractory main body 110 substantially without any gap in the axial direction (longitudinal direction). As shown in FIG. 7, at one end (wall surface) side portion and the central portion of the closing member 120, the inner peripheral portion 122 is in close contact with only the outer peripheral surface of the wiring / piping material 14 (through the sheet body 124). . On the other hand, the inner peripheral portion 122 is in close contact with both the outer peripheral surface of the wiring / pipe material 14 and the surface of the tongue 113a at the other end (back wall) side portion of the closing member 120. Generally, in such a structure, a gap is easily formed by bending of the wiring / piping material 14 and a step between the tongue piece 113a and the outer peripheral surface of the wiring / piping material 14. On the other hand, in the present fireproof structure 10, the inner peripheral portion 122 of the closing member 120 divided in the axial direction by the plurality of groove portions 125 has the outer surface shape (bent shape and tongue piece 115a) in the axial direction of the wiring / piping material 14. The entire surface is compressed and deformed following the step. Then, the radially inner end surfaces (tip portions) of the plurality of divided pieces 126 are individually and irregularly (randomly) compressed and deformed in the axial direction, and the wiring / pipe material along the axial (long) direction. 14 is in close contact with the outer surface. As a result, the closing member 120 closes the gap between the wiring / pipe material 14 and the refractory body 110 without any gap in the axial direction.

  Next, with reference to FIG. 8, a method for constructing the refractory structure 10 of one embodiment of the present invention will be exemplarily described. First, the wiring / pipe material 14 is disposed through the through-hole 13 of the fire protection compartment 12. Next, the fireproof device 11 having the closing member 120 mounted in the fireproof device body 110 is prepared. Here, the outer peripheral portion 123 of the closing member 120 is bonded to the inner peripheral surface of the refractory main body 110 with a double-sided tape, an adhesive, a putty, or the like. The fireproof body 110 and the closing member 120 are integrally elastically deformed to open the slit portions 114 and 127, and the wiring / pipe material 14 is inserted into the insertion portion of the closing member 120 through the opened slit portions 114 and 127. To do. Then, by elastically restoring the fireproof device main body 110 and the closing member 120, the slit portions 114 and 127 are closed, and the wiring / pipe material 14 can be held in the insertion portion. Subsequently, the refractory 11 is slid along the wiring / pipe material 14 and disposed in the through portion 13 of the tubular portion 111 of the refractory main body 110, and the flange portion 112 is brought into contact with the wall surface. The fireproof tool 11 is fixed to the fireproof compartment 12 with a double-sided tape or the like. Then, since the closing member 120 allows relative movement in the axial direction of the wiring / piping material 14 with respect to the refractory main body 110 in a state where the refractory 11 is fixed, the closing member 120 is maintained in the through portion 13. However, the wiring / pipe material 14 can be laid by moving in the axial direction. Through the above steps, the fireproof structure 10 shown in FIG. 1 is constructed.

  Note that the method described here is merely an example, and those skilled in the art can change the order of the steps or omit unnecessary steps depending on the situation. For example, the fireproof device main body 110 may be first installed in the penetrating portion 13, and the closing member 120 and the wiring / pipe material 14 may be inserted into the insertion space from the longitudinal direction through the opening at one end or the other end thereof. Is possible.

  Hereinafter, the effect of the fireproof structure 10 (fireproofing tool 11) of one Embodiment which concerns on this invention is demonstrated.

  According to the fireproof structure 10 and the fireproof tool 11 of the present embodiment, the inner peripheral portion 122 of the compression-deformable closing member 120 surrounding the outer peripheral surface of the wiring / pipe material has a plurality of inner peripheral portions 122 in the axial direction. A plurality of grooves 125 that are divided into divided pieces 126 are provided. And the groove part 125 is formed in the inner peripheral part 122 surface by predetermined | prescribed groove depth, and divides | segments the adjacent division piece 126 so that it can deform | transform individually and freely in an axial direction. Thereby, the inner peripheral portion 122 of the closing member 120 divided in the axial direction by the groove portion 125 can be deformed more randomly and fluidly according to the shape of the object to be contacted. In particular, since the groove portion 125 is separated from the adjacent divided piece 126 in the original shape of the closing member 120 so that the adjacent divided pieces 126 do not come into contact with each other, each divided piece 126 can be matched to the outer shape of the wiring / pipe material 14 in the axial direction. It can be freely deformed in the axial direction. That is, even if the outer surface shape of the wiring / piping material 14 is not simple due to factors such as curl, the inner peripheral portion 122 of the closing member 120 has each divided piece 126 relatively complicated of the wiring / piping material 14. By compressing and deforming individually following the shape, it is possible to make good contact with the outer surface of the wiring / pipe material 14 in the axial direction. Therefore, in the fireproof structure 11 of the present invention, the closing member 120 can more reliably close the gap between the wiring / pipe material 14 and the fireproof body 110.

  As described above, the embodiment according to the basic configuration of the present invention has been described. However, the present invention is not limited to the above-described embodiment, and various embodiments and modifications can be taken within the technical scope of the present invention. Note that, in each embodiment and modification, the components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise specified, and a part of the description is omitted. To do.

(1) FIGS. 9-11 has shown the fireproof structure 20, the fireproof tool 21, and the closure member 220 of 2nd Embodiment of this invention. The configuration of the refractory body 210 is the same as that of the refractory body 110 of the first embodiment. As shown in FIG. 9, the closing member 220 includes a plurality of (two in this embodiment) groove portions 225 that divide the inner peripheral portion 222 into a plurality of divided pieces 226 in the axial direction. In detail, each groove part 225 is a groove carved over the entire circumferential direction on the surface of the inner peripheral part 222 of the sponge body 221, and extends on a plane orthogonal to the axial direction. Moreover, each groove part 225 is formed in the radial direction depth which does not reach the outer peripheral part 223 of the closing member 220. That is, the plurality of divided pieces 226 are connected at the outer peripheral portion 223 of the closing member 220. In other words, the meat part left between the tip of the groove part 225 and the outer peripheral part 223 connects the adjacent divided pieces 226. Each groove portion 225 is a cut that partially cuts the sponge body 221 at a predetermined radial depth, and is divided so that the adjacent divided pieces 226 substantially abut on the original shape of the closing member 220 before compression deformation. doing. In the present embodiment, the plurality of grooves 225 have the same shape, and equally divide the sponge body 221 in the axial direction. And the axial direction width | variety of each division | segmentation piece 226 is uniform. In the blocking member 220 having the shape, the degree of freedom of deformation of the divided pieces 226 is lower than that of the groove portion having a predetermined width. However, at least the plurality of divided pieces 226 are individually compressed and deformed in the axial direction so that wiring / It can be in close contact with the outer surface of the piping material.

  Furthermore, the closing member 220 shown in FIG. 9 is further formed with a plurality of (eight in this embodiment) vertical groove portions 228 that divide the inner peripheral portion 222 into a plurality of portions in the circumferential direction. Is divided into a plurality of strips 226a in the circumferential direction. Specifically, each longitudinal groove 228 is a groove that is radially engraved with a predetermined depth radially outward from the surface of the inner peripheral portion 222 of the sponge body 221 in a front view (or a cross-sectional shape). It extends continuously with the same cross-sectional shape or circumferential width. Further, each longitudinal groove 228 is formed with a radial depth that does not reach the outer peripheral portion 223 of the closing member 220. Each longitudinal groove 228 partially cuts the sponge body 221 with a predetermined radial depth, and the strip 226a adjacent in the circumferential direction in each divided piece 226 in the original shape before compression deformation of the closing member 220. The divided piece 226 is divided so as to substantially contact with each other. That is, since the plurality of strips 226a formed on the radially inner end face of each divided piece 226 can be individually compressed and deformed in the circumferential direction, the inner peripheral portion 222 of the closing member 220 is wired in the circumferential direction. -It is possible to more reliably adhere to the complicated outer peripheral shape of the piping material.

  Next, the fireproof structure 20 in which a fireproof measure is applied to the penetrating portion 23 of the fireproof compartment 22 with the fireproof tool 21 of the present embodiment will be described. FIG. 10 is a longitudinal sectional view of the fireproof structure 20, and FIGS. 11A and 11B are an EE sectional view and an FF sectional view of the fireproof structure 20, respectively.

  As shown in FIG. 10, the closing member 220 is elastically compressed and deformed from the original shape so that there is substantially no gap between the wiring / pipe material 24 and the refractory body 210 in the axial direction (long direction). Blocked. As shown in FIG. 10, at one end (wall surface) side portion and the central portion of the closing member 220, the inner peripheral portion 222 is in close contact with only the outer peripheral surface of the wiring / pipe material 24 (via the sheet body 124). . On the other hand, the inner peripheral portion 222 is in close contact with both the outer peripheral surface of the wiring / pipe material 24 and the surface of the tongue piece 213a at the other end (back wall) side portion of the closing member 220. In the fireproof structure 20, the inner peripheral portion 222 of the closing member 220 divided in the axial direction by the plurality of groove portions 225 follows the outer shape of the wiring / pipe material 24 in the axial direction (bent shape and step by the tongue piece 215a). As a whole, it is compressed and deformed. As a result, the closing member 220 closes the gap between the wiring / piping material 24 and the refractory body 210 without any gap in the axial direction.

  As shown in FIG. 11A, in the cross section of the closing member 220 near the one end (wall surface) side, the closing member 220 is divided by a plurality of (six in this embodiment) vertical groove portions 228 extending in the radial direction. The inner peripheral portion 222 is deformed into a circular cross-sectional view as a whole following the outer peripheral surface shape of the wiring / pipe material 24. Further, the strips 226 a on the radially inner end face of the divided piece 226 are compressed and deformed individually and irregularly (randomly) in the circumferential direction and are in close contact with the outer peripheral surface of the wiring / pipe material 24. That is, each of the strips 226a whose distal end surface (inner peripheral surface) is in close contact with the wiring / pipe material 24 and compressed in the radial direction (or height direction) is individually and irregularly arranged in the circumferential direction (or width direction). As a result of the deformation, the adjacent divided bodies 226 are in contact with each other without any gap in the circumferential direction. As a result, the closing member 220 closes the gap between the wiring / pipe material 24 and the refractory body 210 without any gaps.

  In a cross section at a portion near the other end (behind the wall) of the blocking member 220, a plurality of tongue pieces 213a cover a part of the outer peripheral surface of the wiring / pipe material 24, and the outer peripheral surface of the wiring / pipe material 24 and the tongue The pieces 213a are alternately exposed toward the gap. 11B, the inner peripheral portion 222 of the closing member 220 divided by the plurality of longitudinal groove portions 228 extending in the radial direction is a relatively complicated combination of the wiring / pipe material 24 and the tongue piece 213a. The outer shape is complicated and deformed as a whole. That is, the inner peripheral portion 222 of the closing member 220 is more randomly and fluidly deformed than that in FIG. Then, the strips 226a on the radially inner end face of the split piece 226 are compressed and deformed individually and irregularly (randomly) in the circumferential direction and are in close contact with the surfaces of the wiring / pipe material 24 and the tongue piece 213a. . Each tip 226a that is compressed and deformed in the radial direction (or height direction) with its distal end surface (inner peripheral surface) in close contact with the wiring / pipe material 24 and the tongue piece 213a is individually separated in the circumferential direction (or width direction). By deforming properly and irregularly, the adjacent strips 226a are in contact with each other without any gap in the circumferential direction. As a result, the closing member 220 closes the gap between the wiring / pipe material 24 and the refractory body 210 without any gaps. In the present embodiment, the slit portion 227 communicates with the longitudinal groove portion 228 that divides the inner peripheral portion 222 in the circumferential direction.

  In this embodiment, in addition to the effects of the first embodiment described above, the following operational effects can be achieved. That is, according to the fireproof structure 20 and the fireproof tool 21 of the present embodiment, the inner peripheral portion 222 is disposed in the circumferential direction on the inner peripheral portion 222 of the compressible deformable closing member 220 surrounding the outer peripheral surface of the wiring / pipe material 24. Are provided with a plurality of vertical groove portions 228 which are divided into a plurality of strips 226a. A plurality of vertical groove portions 228 are formed on the surface of the inner peripheral portion 222 with a predetermined groove depth, and the strips 226a can be individually and freely deformed in the circumferential direction in units of divided pieces 226. Thereby, the inner peripheral part 222 of the closing member 220 divided | segmented into the circumferential direction by the vertical groove part 228 can deform | transform more randomly and fluidly according to the shape of the object which contact | abuts. That is, even if the shape of the outer peripheral surface of the wiring / pipe material 24 is not simple due to factors such as curling, the inner peripheral portion 222 of the closing member 220 has the radially inner end surface of each divided piece 226 connected to the wiring / pipe. By individually compressing and deforming the relatively complicated shape of the material 24, it is possible to satisfactorily adhere to the outer peripheral surface of the wiring / pipe material 24 not only in the axial direction but also in the circumferential direction. Therefore, in the fireproof structure 21 of the present invention, the closing member 220 can more reliably close the gap between the wiring / pipe material 24 and the fireproof body 210.

  In the closing member of the present embodiment, the longitudinal groove portion has a predetermined width in the circumferential direction at the inner peripheral portion, and the adjacent strips in the original shape before compression deformation of the closing member do not contact each other. It may be separated. For example, the longitudinal groove portion may have a V shape when viewed from the front. The longitudinal groove portion that separates adjacent strips guides expansion of each divided piece in the circumferential direction when the piece is compressed and deformed in the radial direction. And when each division | segmentation piece elastically compresses and deforms, it deform | transforms so that a part of division | segmentation piece (thin piece) may occupy a groove part, and an adjacent division | segmentation piece contacts without a clearance gap. Moreover, in the closing member of this embodiment, the vertical groove part may have shifted | deviated to the circumferential direction in the division piece adjacent to the axial direction among several division pieces.

(2) FIG. 12 shows the closing member 320 of the fireproof device of the third embodiment of the present invention. The closing member 320 includes a single groove portion 325 that is recessed in the inner peripheral portion 322 and extends spirally around the central axis. The groove portion 325 includes three or more inner peripheral portions 322 of the closing member 320 in the axial direction at all locations of the inner peripheral portion 322 of the closing member 320 (side view of the inner peripheral portion 322 as viewed from the central axis) (this embodiment). Then, it is divided into divided pieces 326 of 4). In other words, the spiral of the groove 325 is three or more turns in the entire axial direction of the closing member 320. The sponge body 321 (each divided piece 326) is integrally connected in the circumferential direction or spirally, but the spiral groove 325 cuts the sponge body 321 into a plurality of regions in a sectional view along the axial direction. Therefore, each region of the inner peripheral portion 322 divided by the groove portion 325 is defined as a divided body 326 here. Further, the groove 325 is formed with a radial depth that does not reach the outer peripheral portion 323 of the closing member 320. That is, the plurality of divided pieces 326 are connected at the outer peripheral portion 323 of the closing member 320. In other words, the meat part remaining between the tip of the groove 325 and the outer peripheral part 323 connects the adjacent divided pieces 326 together. The groove portion 325 is a cut that partially cuts the sponge body 321 at a predetermined radial depth, and is divided so that the adjacent divided pieces 326 substantially come into contact with each other in the original shape before compression deformation of the closing member 320. ing. In the present embodiment, the slit portion is selectively omitted from the closing member.

  In the closing member 320 of the present embodiment, the groove portion 325 is formed on the surface of the inner peripheral portion 322 with a predetermined groove depth, and is divided so that the adjacent divided pieces 326 can be individually and freely deformed in the axial direction. doing. As a result, the inner peripheral portion 322 of the closing member 320 divided in the axial direction by the groove portion 325 can be deformed more randomly and fluidly according to the shape of the object to be contacted. That is, even if the outer surface shape of the wiring / pipe material is not simple due to factors such as curl, the inner peripheral portion 322 of the blocking member 320 has each divided piece 326 in a relatively complicated shape of the wiring / pipe material. By individually compressing and deforming, it is possible to satisfactorily adhere to the outer surface of the wiring / pipe material in the axial direction.

  In the present embodiment, the groove portion is configured to reach from the inner peripheral portion of the closing member to the outer peripheral portion so as to cut the closing member in the radial direction, and adjacent divided pieces are separated at the outer peripheral portion of the closing member. May be. Further, the spiral groove may be multi-threaded. Further, the spiral groove portion may have a predetermined width in the inner peripheral portion, and may be separated from each other without bringing the adjacent divided pieces into contact with each other in the original shape before compression deformation of the closing member. For example, the groove portion may have a V shape when viewed from the front. The groove part separating the adjacent divided pieces guides that each divided body expands in the axial direction so that a part of the divided piece occupies the groove part when the sponge body is compressed and deformed.

(3) FIG. 13 shows the closing member 420 of the refractory tool 41 in the refractory structure 40 of the fourth embodiment of the present invention. In the fireproof structure 40, the wiring / pipe material 44 is a flexible tube in which peaks and troughs are alternately arranged in the axial direction. In the present embodiment, the closing member 420 has more grooves 425 and divided pieces 426, and the axial widths of the plurality of divided pieces 426 are not uniform. Specifically, the axial width of the split piece 426 near the center in the axial direction is relatively smaller than the width on both ends. Note that the divided piece 426 having a smaller axial width is more easily compressed and deformed. Thus, since the axial direction width | variety of the some division | segmentation piece 426 is non-uniform | heterogenous, it is possible to deform | transform the inner peripheral part 422 of the closure member 420 more randomly as a whole. If the wiring / pipe material 44 has many irregularities on the outer surface in the axial direction as in this embodiment, it is more effective if more grooves 425 are provided in the inner peripheral portion 422 of the closing member 420. The gap can be closed.

(4) FIGS. 14 to 16 show a closing member 520 of a fireproof device according to a fifth embodiment of the present invention. FIG. 14 is an exploded perspective view of the closing member 520 in which a plurality of divided pieces 526 are separated. FIG. 15 is a longitudinal sectional view of a closing member 520 in which a plurality of divided pieces 526 are stacked in the axial direction. FIG. 16 is a cross-sectional view of the closing member 520. The closing member 520 includes a plurality of groove portions 525 that divide the inner peripheral portion 522 into a plurality of divided pieces 526 in the axial direction. Each groove portion 525 extends from the inner peripheral portion 522 to the outer peripheral portion 523 so as to cut or divide the sponge body 521 in the axial direction, and the plurality of divided pieces 526 are completely separated from each other. That is, the plurality of divided pieces 526 are separated in the axial direction in a block shape by the groove portion 525 that cuts the wall portion of the closing member 520 (sponge body 521) along the orthogonal plane (horizontal plane) in the axial direction. Thereby, the independence in the compression deformation of each division | segmentation piece 526 can be improved more, and the obstruction | occlusion property between the wiring and piping material in the axial direction and a refractory main body can be improved.

  Further, the closing member 520 of the present embodiment is further formed with a plurality of longitudinal groove portions 528 that divide the inner peripheral portion 522 into a plurality of pieces in the circumferential direction, and the radially inner end surface of the divided piece 526 has a plurality of strips in the circumferential direction. It is divided into 526a. Specifically, each vertical groove portion 528 is a groove that is radially engraved with a predetermined depth radially outward from the surface of the inner peripheral portion 522 of the sponge body 521 in a front view (or a cross-sectional shape). Further, each longitudinal groove 528 partially cuts the sponge body 521 with a predetermined radial depth, and in the original shape before the compression deformation of the closing member 520, the narrow adjacent to the circumferential direction in each divided piece 526. The pieces 526a are divided so as to substantially contact each other. Note that the longitudinal groove portion may have a predetermined width in the circumferential direction at the inner peripheral portion, and may be separated without contacting adjacent strips in the original shape before compression deformation of the closing member.

  Each vertical groove portion 528 is formed over the axial direction of the radially inner end face of each divided piece 526 and is formed with a radial depth that does not reach the outer peripheral portion 523 of the closing member 520. And in the divided piece 526 adjacent to the axial direction among the some divided pieces 526, the vertical groove part 528 has shifted | deviated to the circumferential direction. That is, as shown in FIGS. 15 and 16, the three divided pieces 526 are laminated so that the slit portions 527 (also serving as the longitudinal groove portions 528) are in the same position in the circumferential direction in a state of being laminated in the axial direction. However, the positions of the other vertical groove portions 528 in the circumferential direction are all different. That is, the plurality of thin pieces 526a formed on the radially inner end face of each divided piece 526 can be individually compressed and deformed in the circumferential direction, and the vertical groove portion 528 is also formed in the adjacent divided pieces 526 in the axial direction. Since the mode of deformation changes depending on the position due to the shift, the inner peripheral portion 522 of the closing member 520 can be elastically deformed more randomly as a whole. Thereby, the inner peripheral part 522 of the closing member 520 can be more reliably adhered to the complicated outer shape of the wiring / pipe material in the axial direction and the circumferential direction.

(5) FIG. 17 shows a closing member 620 of the fireproof device according to the sixth embodiment of the present invention. The closing member 620 includes a plurality of groove portions (dividing portions) 625 that divide the inner peripheral portion 622 into a plurality of divided pieces 626 in the axial direction. Each groove portion 625 extends from the inner peripheral portion 622 to the outer peripheral portion 623 so as to cut the closing member 620 in the radial direction, and the plurality of divided pieces 626 are completely separated from each other. In other words, the plurality of divided pieces 626 are separated in a block shape in the axial direction by the groove portion 625 that cuts the wall portion of the closing member 620 (sponge body 621) in the radial direction. In addition, a plurality of sheet bodies 624 finely divided by the groove 625 and the longitudinal groove 628 are attached to the surface of the inner peripheral portion 622. Further, the closing member 620 further includes a connecting sheet (connecting body) 629 that connects adjacent divided pieces 626 among the plurality of divided pieces 626 on the outer peripheral side. The connection sheet 629 can be selected from a nonwoven fabric or the like. By connecting the divided pieces 626 separated by the connecting sheet 629 on the outside of the outer peripheral portion 623, the closure member 620 can be easily carried and installed while maintaining the independence of each divided piece 626 in compression deformation. In addition, a connection sheet | seat may connect some division bodies among several division bodies. Further, the connecting body does not have to be a sheet, and may be a metal piece such as a staple.

(6) FIG. 18 shows a closing member 720 of the fireproofing device of the seventh embodiment of the present invention. In addition to the closing member 620 of the sixth embodiment, the closing member 720 of FIG. 18 is obtained by completely cutting the divided piece 726 in the circumferential direction by a longitudinal groove 728. That is, the closing member 720 may be integrally held by the connecting sheet (connecting body) 729 in a state of being more finely blocked in both the circumferential direction and the radial direction.

(7) FIG.19 and FIG.20 has shown the obstruction | occlusion member 820 of the fireproof equipment of 8th Embodiment of this invention. Similar to the fifth closing member 520, the closing member 820 of this embodiment includes a plurality of divided pieces 826 that are separated into blocks in the axial direction by the grooves 825. The closing member 820 includes a plurality of groove portions 825 that divide the inner peripheral portion 822 into a plurality of divided pieces 826 in the axial direction. Each groove portion 825 extends from the inner peripheral portion 822 to the outer peripheral portion 823 so as to cut or divide the sponge body 821 in the axial direction, and the plurality of divided pieces 826 are completely separated from each other. In other words, the inner peripheral portion 822 of the closing member 820 is compressively deformed with the inner end surface in the axial direction of each divided piece 826 individually following the outer surface shape of the wiring / pipe material, and adheres well to the outer surface of the wiring / pipe material. It is possible. In particular, in the present embodiment, the adjacent divided pieces 826 have different radial thicknesses (the radial distance between the inner peripheral portion 822 and the outer peripheral portion 823). That is, the divided piece 826 has a relatively large radial thickness (a small diameter of the central hole), the first divided piece 826-1, and a second divided piece 826-2 adjacent to the first divided piece 826-2 having a relatively small radial thickness. , And a third divided piece 826-3 having a medium thickness. When the divided pieces 826-1, 826-2, and 826-3 are stacked in the axial direction, a step is generated in the axial direction at the inner peripheral portion 822 of the closing member 820. Therefore, for example, when the wiring / piping material has a complicated outer surface shape, such as when the thickness is not uniform in the axial direction (long direction) of the wiring / piping material, the inner peripheral portion 822 of the closing member 820 is entirely Therefore, the closing member 820 can more effectively close the gap between the wiring / piping material and the refractory body.

(8) FIG.21 and FIG.22 has shown the closure member 920 of the fireproof tool of 9th Embodiment of this invention. Similar to the fifth closing member 520, the closing member 920 of the present embodiment includes a plurality of divided pieces 926 that are separated into a block shape in the axial direction by the groove portion 925. The closing member 920 includes a plurality of groove portions 925 that divide the inner peripheral portion 922 into a plurality of divided pieces 926 in the axial direction. Each groove portion 925 extends from the inner peripheral portion 922 to the outer peripheral portion 923 so as to cut or divide the sponge body 921 in the axial direction, and the plurality of divided pieces 926 are completely separated from each other. The inner peripheral portion 922 of the closing member 920 may compress and deform the axial inner end face of each divided piece 926 individually following the outer surface shape of the wiring / piping material, and may adhere well to the outer surface of the wiring / piping material. Is possible. In particular, the divided piece 926 is an annular body having a hole (insertion portion) that is distorted in plan view on the inside thereof. As shown in FIGS. 21 and 22, when the plurality of divided pieces 926 are stacked in the axial direction, the holes having a distorted shape do not align with each other, so that the inner peripheral portion 922 of the closing member 920 has an axial direction. Irregular irregularities are formed. Therefore, since the inner peripheral portion 922 of the closing member 920 has a complicated and irregular surface shape as a whole, the closing member 920 is connected to the wiring / pipe material and the fire resistance against the more complicated outer surface shape of the wiring / pipe material. It is possible to more effectively close the gap between the tool body.

(9) In the closing member of the present invention, the cross-sectional shape of the inner peripheral portion and the outer peripheral portion of the closing member is not limited to the circumferential shape, and may be any shape such as an ellipse, an ellipse, a polygonal shape, and a distorted shape. There may be, and it may be optimally selected according to the form of wiring and piping material and a penetration part. Further, the closing member of the present invention can take various shapes other than the above-described forms. For example, the blocking member is an irregularly formed part or all of the axial width, interval and radial depth of the groove, and the axial width and radial length (thickness) of the segment. May be. And a groove part may be formed on the surface inclined with respect to the axial direction. Furthermore, the closing member may have a shape that is not uniform in the axial direction, such as a tapered shape.

(10) FIG. 23 shows a cross-sectional view of a fireproof structure 100 of another embodiment of the present invention. In the fireproof structure 100, the wiring / pipe material 104 is inserted through a through-hole 103 formed through the fireproof compartment 102 of the building in the axial direction. A fireproof tool 101 is provided between the outer peripheral surface and the outer peripheral surface. The refractory 101 is made of a heat-expandable material that expands due to heat, is fixed in the through-hole 103, and surrounds the outer peripheral surface of the wiring / piping material 104 with a predetermined gap, and the wiring / piping. Between the inner peripheral surface of the through-hole 103 and the outer peripheral surface of the refractory main body 1010, which is compressed and deformed so as to close the gap between the refractory main body 1010 and the wiring / piping member 104 by inserting the material 104 And an outer frame 1030 disposed on the surface. In this embodiment, the refractory body 1010 is formed as a cylindrical body without a flange. That is, the refractory main body 1010 includes a cylindrical portion 1011 and a closing portion 1013 (tongue piece 1013a). The outer frame 1030 is made of a heat-resistant metal piece, and has a cylindrical portion 1031 for inserting the fireproof device main body 1010 and a flange portion 1032 protruding from the outer periphery of the cylindrical portion 1031. In the present embodiment, the outer frame 1030 can be easily arranged with respect to the penetrating portion 103 by bringing the flange portion 1032 of the outer frame 1030 into contact with the periphery of the penetrating portion 103, and It is possible to stably hold the refractory main body 1010 in the cylindrical portion 1031 of the outer frame 1030 regardless of the circumferential shape and surface state. And it cannot be overemphasized that the effect of this invention can be exhibited also in the said modification. That is, as long as those skilled in the art can assume, the fireproof structure of the present invention can be arbitrarily modified or changed.

(11) In the closing member of the above embodiment, adjacent divided pieces among the plurality of divided pieces may have different compression ratios in terms of material. By controlling the material density and material of the sponge body so as to change partially, the compression rate of the adjacent divided pieces can be changed. For example, the divided pieces are formed of materials having different compression ratios, and the divided pieces are bonded together in the axial direction, or the divided pieces having different compression ratios are formed as shown in FIGS. 14, 17, 18, 19, and 21. By laminating in the axial direction as described above, the compression rate of the adjacent divided pieces can be changed. That is, by deforming the adjacent divided pieces at different compression rates, the inner peripheral part of the closing member can be deformed more randomly as a whole, and high adhesion to the outer surface shape of various wiring and piping materials Can be achieved. In particular, in the closing member 820 in FIG. 19, it is preferable that the compression rate of the segment 826 having a relatively large radial thickness be higher than that of the relatively thin segment 826. For example, in the inner peripheral portion 822 of the closing member 820, the first divided piece 826-1 that protrudes inward from the second divided piece 826-2 is relatively closer to the outer surface of the wiring / pipe material. It is easy to make strong contact from a distance. Therefore, by relatively increasing the compression rate (easiness of compression) of the first divided piece 826-1, the inner peripheral portion 822 of the closing member 820 can be in close contact with the wiring / pipe material as a whole in a well-balanced manner. Become. Similarly, in each divided piece, the compression rate of a plurality of fine pieces divided by the longitudinal groove portion in the circumferential direction may be changed.

(12) In the fireproofing tool of the above embodiment, the fireproofing tool main body is not limited to the heat-expandable rubber, and may be a heat-expandable foam having a predetermined cushioning property. For example, the refractory main body may be formed of the same material as the closing member or a similar material. Moreover, the refractory body and the closing member made of the same material may be integrally held. Furthermore, the refractory body may be composed of two or more parts including a thermally expandable member and a non-thermally expandable member. And a fireproofing device main body may be comprised with a non-thermal expansion material, and a closure member may be comprised with a thermally expansible material.

(13) In the fireproof device of the above-described embodiment, the fireproof device main body and the closing member have a slit portion for arranging the wiring / pipe material from the radial direction inside, but instead of providing the slit portion, the fireproof device main body Or you may form the obstruction | occlusion member in the half shape divided | segmented into 2 along the axial direction. In this case, it is possible to arrange the wiring / pipe material inside by joining the halves so as to sandwich the wiring / pipe material.

(14) The refractory body of the present invention is not limited to the embodiment described above. The cross-sectional shape of the refractory main body is not limited to an annular shape, and may be any shape such as an ellipse, an ellipse, a polygonal shape, a distorted shape, etc., depending on the form of wiring / piping materials and penetrations Can be selected optimally. Moreover, the refractory body may have a shape that is not uniform in the axial direction, such as a tapered shape. Furthermore, a tongue piece (closed part) may be omitted from the refractory body. Or a tongue piece (closing part) may be formed in the position different from the said embodiment, such as an axial direction one end on the wall surface side, for example.

(15) In the fireproof structure of the above embodiment, one wiring / piping material is inserted into the fireproofing tool, but a plurality of wirings / piping materials may be inserted into the fireproofing tool. When a large number of wiring / piping materials are inserted through the through-holes, the diameter of the inner peripheral portion of the blocking member is changed to each wiring / piping so that the shape of the inner peripheral portion of the closing member follows the deformation of the bundle of wiring / piping materials. It is preferable to make it relatively small with respect to the diameter of the material. For example, when the amount of wiring / piping material is large, the diameter of the inner peripheral portion of the closing member may be set to a minimum (as the diameter of the needle) so as to increase the compression amount of the sponge body. On the other hand, when there is one or a small amount of wiring / piping material, the diameter of the inner peripheral portion of the closing member may be determined according to the diameter of the wiring / piping material as in the above embodiment.

(16) In the above embodiment, the refractory body is made of a thermally expandable material, and the closing member is made of a thermally expandable material or a non-thermally expandable material. However, the refractory body may be made of a non-thermally expanded flame-resistant or heat-resistant material such as a metal tube (see, for example, the outer frame 1030 in FIG. 23), and the closing member may be made of a thermally expandable material.
That is, the refractory is
A fire-resistant body made of a non-thermally expandable flame-resistant (heat-resistant) material, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween,
A compression-deformable thermally expandable closing member that interpolates the wiring / piping material and closes a gap between the refractory main body and the wiring / piping material,
The closing member includes a plurality of groove portions that axially divide an inner peripheral portion of the closing member that faces an outer peripheral surface of the wiring / pipe material, and a plurality of divided pieces formed between the plurality of groove portions, The plurality of divided pieces are individually compressed and deformed in the axial direction and are in close contact with the outer peripheral surface of the wiring / pipe material.
Alternatively, the groove portion is formed in at least one spiral extending in the axial direction, and the groove portion includes three or more inner peripheral portions of the closing member in the axial direction at all locations of the inner peripheral portion of the closing member. It may be divided into divided pieces, and the plurality of divided pieces may be individually compressed and deformed in the axial direction to be in close contact with the outer peripheral surface of the wiring / pipe material.
Also in the refractory of this form, similarly to the above-described embodiment, a plurality of grooves that divide the inner peripheral portion into a plurality of divided pieces in the axial direction are provided on the inner peripheral portion of the compressible deformation member. For this reason, the closing member can more reliably close the gap between the wiring / piping material and the refractory body.

  Needless to say, some or all of the features of the above-described embodiments and modifications may be combined and applied to the fireproof structure, fireproof tool, and closure member.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Fireproof structure 11 Fireproof tool 12 Fireproof division body 13 Penetration part 14 Wiring and piping material 110 Fireproof tool main body 111 Cylindrical part 112 Flange part 113 Closure part 113a Tongue piece 114 Slit part 120 Closure member 121 Sponge body 122 Inner peripheral part 123 Outer part Part 124 sheet body (frictional resistance reducing member)
125 Groove part 126 Split piece 127 Slit part 228, 528, 628, 728 Vertical groove part 629, 729 Connection sheet (connection body)
1030 Outer frame 1031 Tube 1032 Flange

Claims (27)

Wiring / piping material is inserted through the penetration part formed through the fire prevention compartment of the building, and a fireproofing tool is provided between the inner peripheral surface of the penetration part and the outer peripheral surface of the wiring / piping material. A fireproof structure,
The refractory is
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A closing member that is compressed and deformed so as to close the gap between the refractory main body and the wiring / piping material by interpolating the wiring / piping material,
The closing member includes a plurality of groove portions that axially divide an inner peripheral portion of the closing member that faces an outer peripheral surface of the wiring / pipe material, and a plurality of divided pieces formed between the plurality of groove portions, The fireproof structure is characterized in that the plurality of divided pieces are individually compressed and deformed in the axial direction and are in close contact with the outer peripheral surface of the wiring / pipe material. Wiring / piping material is inserted through the penetration part formed through the fire prevention compartment of the building, and a fireproofing tool is provided between the inner peripheral surface of the penetration part and the outer peripheral surface of the wiring / piping material. A fireproof structure,
The refractory is
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A closing member that is compressed and deformed so as to close the gap between the refractory main body and the wiring / piping material by interpolating the wiring / piping material,
At least one spiral groove portion extending in the axial direction is formed in the inner peripheral portion of the closing member facing the outer peripheral surface of the wiring / piping material, and the groove portion is the entire inner peripheral portion of the closing member. The inner peripheral portion of the closing member is divided into three or more divided pieces in the axial direction, and the plurality of divided pieces are individually compressed and deformed in the axial direction on the outer peripheral surface of the wiring / pipe material. Fireproof structure characterized by close contact.   The said groove part is formed in the radial direction depth which does not reach the outer peripheral part of the said obstruction | occlusion member, The said some division | segmentation piece is connected in the outer peripheral part of the said obstruction | occlusion member. Fireproof structure.   The groove portion reaches from the inner peripheral portion to the outer peripheral portion of the closing member so as to cut the closing member in the radial direction, and the adjacent divided pieces are separated at the outer peripheral portion of the closing member. The fireproof structure according to claim 1 or 2.   5. The fireproof structure according to claim 4, wherein the closing member further includes a connecting body that connects at least a part of adjacent divided pieces of the plurality of divided pieces on an outer peripheral side of the closing member. .   The closing member is further formed with a plurality of longitudinal groove portions that divide the inner peripheral portion into a plurality in the circumferential direction, and a radially inner end surface of the divided piece is divided into a plurality in the circumferential direction. The fireproof structure according to any one of claims 1 to 5.   The fireproof structure according to claim 6, wherein in the divided pieces adjacent in the axial direction among the plurality of divided pieces, the longitudinal groove portion is displaced in the circumferential direction.   In the original shape before compressive deformation of the closing member, the adjacent divided bodies are separated without contacting each other across the groove portion, and in the compressed shape installed in the gap, the compressed deformed divided body forms the groove portion. The fireproof structure according to any one of claims 1 to 7, wherein the fireproof structure is occupied. A fireproofing tool in which a wiring / piping material is inserted through a penetration portion formed through a fireproof compartment of a building, and is provided between an inner peripheral surface of the penetration portion and an outer peripheral surface of the wiring / piping material. Because
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A compression-deformable closing member that interpolates the wiring / piping material and closes a gap between the refractory main body and the wiring / piping material,
The closing member includes a plurality of groove portions that axially divide an inner peripheral portion of the closing member that faces an outer peripheral surface of the wiring / pipe material, and a plurality of divided pieces formed between the plurality of groove portions, And the plurality of divided pieces are individually compressed and deformed in the axial direction and are in close contact with the outer peripheral surface of the wiring / piping material. A fireproofing tool in which a wiring / piping material is inserted through a penetration portion formed through a fireproof compartment of a building, and is provided between an inner peripheral surface of the penetration portion and an outer peripheral surface of the wiring / piping material. Because
A refractory body made of a thermally expansible material that expands due to heat, fixed in the penetrating portion, and surrounding the outer peripheral surface of the wiring / piping material with a predetermined gap therebetween;
A compression-deformable closing member that interpolates the wiring / piping material and closes a gap between the refractory main body and the wiring / piping material,
At least one spiral groove portion extending in the axial direction is formed in the inner peripheral portion of the closing member facing the outer peripheral surface of the wiring / piping material, and the groove portion is the entire inner peripheral portion of the closing member. The inner peripheral portion of the closing member is divided into three or more divided pieces in the axial direction, and the plurality of divided pieces are individually compressed and deformed in the axial direction on the outer peripheral surface of the wiring / pipe material. Fireproofing equipment characterized by close contact.   The said groove part is formed in the radial direction depth which does not reach the outer peripheral part of the said obstruction | occlusion member, The said adjacent division piece is connected in the outer peripheral part of the said obstruction | occlusion member. Fireproofing equipment.   The groove portion reaches from the inner peripheral portion to the outer peripheral portion of the closing member so as to cut the closing member in the radial direction, and the adjacent divided pieces are separated at the outer peripheral portion of the closing member. The fireproof device according to claim 9 or 10, wherein:   The fireproof device according to claim 12, wherein the closing member further includes a connecting body that connects at least a part of adjacent divided pieces of the plurality of divided pieces on an outer peripheral side of the closing member. .   The fireproof device according to any one of claims 9 to 13, wherein an axial width of the plurality of divided pieces is not uniform.   Between the inner peripheral part of the blocking member and the outer peripheral surface of the wiring / pipe material, there is interposed a frictional resistance reducing member composed of a plurality of sheet bodies attached to the radially inner end surfaces of the divided pieces. The fireproof device according to claim 9, wherein the fireproof device is a fireproof device.   The closing member is further formed with a plurality of longitudinal groove portions that divide the inner peripheral portion into a plurality in the circumferential direction, and a radially inner end surface of the divided piece is divided into a plurality in the circumferential direction. The fireproof device according to any one of claims 9 to 15.   The fireproof structure according to claim 16, wherein in the divided pieces adjacent in the axial direction among the plurality of divided pieces, the longitudinal groove portion is displaced in the circumferential direction.   In the original shape before compressive deformation of the closing member, the adjacent divided bodies are separated without contacting each other across the groove portion, and in the compressed shape installed in the gap, the compressed deformed divided body forms the groove portion. The fireproof device according to any one of claims 9 to 17, wherein the fireproof device can be occupied.   19. The fireproof device according to claim 9, wherein among the plurality of divided pieces, the divided pieces adjacent in the axial direction have different compression ratios.   The plurality of divided pieces include a first divided piece and a second divided piece, the radial thickness of the second divided piece is smaller than the radial thickness of the first divided piece, and the first divided piece The fireproofing device according to claim 19, wherein the compression rate of the second divided piece is larger than the compression rate.   The fireproof device according to any one of claims 9 to 20, wherein the divided pieces are formed of three or more in the axial direction of the inner peripheral portion of the closing member.   The fireproofing device according to any one of claims 9 to 21, wherein the closing member has a thermal expansion property that expands due to heat.   The refractory main body according to any one of claims 9 to 22, wherein the refractory main body has cushioning properties.   The fireproof device according to any one of claims 9 to 23, wherein the fireproof device main body has a hooking portion that is hooked around a periphery of the through portion of the fireproof compartment.   An outer frame having a cylindrical portion for inserting the refractory main body, and a flange portion protruding from the outer periphery of the cylindrical portion, and disposed between the inner peripheral surface of the penetrating portion and the outer peripheral surface of the refractory main body The refractory device according to any one of claims 9 to 24, further comprising:   At least one of the refractory main body and the closing member has a slit portion that divides the wall portion along the axial direction so as to form an opening for arranging the wiring / piping material inside from the radial direction. The fireproof device according to any one of claims 9 to 25, wherein: In a fireproof structure provided in a penetration part formed through a fireproof compartment of a building, a blocking member that inserts the wiring / pipe material and closes a gap generated in the penetration part,
It consists of an annular compression-deformable sponge body having an inner periphery and an outer periphery,
A plurality of groove portions that divide the inner peripheral portion of the closing member facing the outer peripheral surface of the wiring / piping material into a plurality of divided pieces in the axial direction,
The blocking member is characterized in that the plurality of divided pieces can be individually compressed and deformed in the axial direction so as to be in close contact with the outer peripheral surface of the wiring / piping material.

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