JP2018003957A - Cap, cap forming member, covering method and partition penetration structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap capable of covering a space between a partition penetration hole and either piping or wiring passed through the partition penetration hole even if the partition penetration hole is formed having a usual error.SOLUTION: A cap 30 of this invention is installed at one end of a partition penetration hole 16 in order to cover a clearance between an inner surface of the partition penetration hole 16 formed at a wall body 101 defining a building and an outer surface of either piping 5 or wiring passed through the partition penetration hole 16. The cap 30 has an outer shape size in which a design size of the outer shape of the partition penetration hole 16 is expanded in similar manner to twice or more. When the cap 30 is installed at one end of the partition penetration hole 16, the cap 30 has an opening 31 corresponding to either the piping 5 or the wiring.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cap for covering a space between a partition through hole and a pipe or wiring passed therethrough, a cap forming member used for forming the cap, a covering method using the cap, and It is related with the division penetration structure provided with the above-mentioned cap.

  Conventionally, a partition through hole is formed in a wall forming a floor of a building, and piping is passed through the partition through hole. However, when there are a plurality of building levels, as shown in FIG. There is an artificial shift in the formation position of the partition through hole 200 in each layer, or the pipe 5 cannot be extended in the vertical direction as shown in FIG. 27, so that the pipe 5 cannot be passed through the partition through hole 200 in all layers. There was a problem.

  Conventionally, in order to solve the above problem, as shown in FIG. 28, a new partition through-hole that is continuous with the existing partition through-hole is formed in a layer where the pipe 5 cannot pass (corresponding to the lowermost layer in FIG. 28). Thus, the range of the partition through hole 200 is enlarged and the pipe 5 is passed. As a result, the passage position of the pipe 5 in the partition through hole 200 and the diameter of the partition through hole 200 had an error different from the design (in the example of FIG. 28, the passage position of the pipe 5 in the intermediate layer is on the right side. The diameter of the partition through hole 200C is larger than the design value in the lowermost layer).

  In order to improve the aesthetics and sound insulation in the building in terms of laws and contractors, it is required to cover between the piping or wiring and the exit of the partition through hole. In order to meet this requirement, a cap is attached to the partition through hole. For example, in Patent Document 1, a partition through-hole is formed from a cylindrical sleeve, and a cap is attached to one end of the sleeve, so that a pipe or the like and an inner surface of one end of the sleeve (pipe and the one end side of the partition through-hole) Covering the inner surface of the substrate). As shown in FIG. 28, the cap 300 of Patent Document 1 includes a cylindrical portion 300a and a flange portion 300b. As shown in the uppermost layer of FIG. 28, the cylindrical portion 300a is connected to the inner surface of the sleeve 400. The flange portion 300 b is installed at one end of the sleeve 400 so as to be inserted between the outer surface of the pipe 5.

  However, since the cap 300 disclosed in Patent Document 1 is formed around the opening 300c through which the pipe 5 is passed, the passage of the pipe 5 through the partition through hole 200 as in the intermediate layer or the lowermost layer in FIG. In the situation where the position and the diameter of the partition through hole 200 are different from the design, the gap between the inner surface of the partition through hole 200 (the inner surface of the sleeve 400) and the outer surface of the pipe 5 cannot be blocked. Can occur. For example, as in the intermediate layer of FIG. 28, in a situation where the width H between the inner surface of the sleeve 400 and the outer surface of the pipe 5 is smaller than the width S of the cylindrical portion 300a, the cylindrical portion 300a is placed in the partition through hole 200B. Since it cannot insert, cap 300 cannot be attached to division penetration hole 200B. For this reason, the clearance gap between the inner surface of the division through-hole 200 (inner surface of the sleeve 400) and the outer surface of the pipe 5 cannot be closed. 26, in the situation where the width H between the inner surface of the sleeve 400 and the outer surface of the pipe 5 is larger than the width F of the flange portion 300b, a gap is generated beside the cap 300. . In addition, caps having different dimensions (such as the width S of the cylindrical portion 300a and the width F of the flange portion 300b) for each of the partition through holes 200 of each layer in order to close the gaps between the partition through holes 200 of all layers with the cap 300. When preparing 300, a lot of trouble is required.

JP 2004-27554 A

  An object of the present invention is to form a cap capable of covering between a partition through hole and a pipe or wiring passing through the partition through hole even when the partition through hole is constructed with a general error. It is providing the member for cap formation used to do, the coating method using the said cap, and the division penetration structure provided with the said cap.

  To achieve the above object, the present invention includes the subject matter described in the following section.

Item 1. It is installed at one end of the partition through-hole to cover the gap between the inner surface of the partition through-hole formed in the wall body that partitions the building and the outer surface of the pipe or wiring passed through the partition through-hole. A cap,
The cap has an outer dimension that is a similar enlargement of the design dimension of the outer shape of the partition through-hole by more than twice.
When the cap is installed at one end of the partition through hole, the cap has an opening corresponding to the pipe or wiring.

  Item 2. Item 2. The cap according to item 1, formed from a material having extensibility.

  Item 3. Item 3. The cap according to Item 1 or 2, wherein the cap is installed at one end of a cylindrical sleeve that forms the partition through hole.

Item 4. The cap has a substantially conical shape whose diameter changes stepwise by extending a small-diameter cylindrical portion to one side of a large-diameter cylindrical portion that is continuously formed in the extended state, From the stretched state, a small-diameter cylindrical portion is in a contracted state by weaving in a nested manner inside the large-diameter cylindrical portion continuous on the other side,
The cylindrical portion having the largest diameter in the cap has an external dimension obtained by enlarging the design dimension of the external shape of the partition through hole by three times or more,
Item 4. The cap according to any one of Items 1 to 3, wherein when the cap is installed at one end of the partition through-hole, the cap has the opening communicating with a cavity that passes through the inside of each cylindrical portion. .

Item 5. The cap is a combination of a pair of halves,
Item 4. The cap according to any one of Items 1 to 3, wherein each of the halves is formed with a recess that constitutes the opening.

Item 6. Item 6. A cap forming member used for forming the cap according to any one of Items 1 to 5,
The member has an outer dimension in which the design dimension of the outer shape of the partition through-hole is enlarged twice or more,
A cap forming member in which the cap is obtained by forming the opening in the member.

Item 7. A method of covering a gap between the inner surface of the partition through hole and the outer surface of the pipe or wiring using a cap obtained from the member described in item 6,
A first step of passing the piping or wiring through the compartment through hole;
A second step of obtaining the cap by forming the opening in the cap-forming member;
A third step of installing the cap at one end of the partition through-hole so that the pipe or wiring is passed through the opening of the cap;
In the second step, a position and a diameter of the opening formed in the cap forming member are set based on a passage position of the pipe or wiring in the partition through hole and a diameter of the pipe or wiring.

Item 8. In the first step, the piping or wiring is passed through a plurality of the partition through holes,
In the second step, the cap forming member is prepared for each of the partition through-holes, and the cap is obtained for each of the partition through-holes by forming the opening in each of the cap forming members. ,
In the third step, each of the caps is installed at one end of the partition through-hole so that the pipe or wiring is passed through the opening of each of the caps.
In the second step, the position and diameter of the opening formed in each cap forming member is set based on the passage position of the pipe or wiring in each partition through hole, or the diameter of the pipe or wiring. 8. The construction method according to item 7.

Item 9. A wall in which a partition through hole is formed;
Piping or wiring passed through the compartment through-holes;
The cap according to any one of Items 1 to 5,
The cap is a partition through structure that is installed at one end of the partition through hole so that the pipe or the wiring is passed through the opening.

Item 10. The partition through hole is formed from a cylindrical sleeve containing a thermally expandable refractory resin material,
Item 10. The compartment penetration structure according to Item 9, wherein the cap is attached to one end of the sleeve.

Item 11. A plurality of the wall bodies are provided,
The piping or the wiring is passed through the partition through holes of the wall bodies,
The cap is prepared for each compartment penetration of each wall body,
Item 11. The section penetrating structure according to Item 9 or 10, wherein each of the caps is installed at one end of the corresponding section through-hole so that the pipe or wiring is passed through the opening.

  According to the present invention, the cap has an opening corresponding to the pipe or wiring, and the minimum width of the outer shape of the cap is more than twice the design value of the maximum width of the outer shape of the partition through hole. By installing in the partition through-hole so that piping or wiring can be passed through, even if the partition through-hole is constructed with an error that can generally occur, the space between the partition through-hole and the piping or wiring is covered It is possible.

It is a schematic sectional drawing which shows the division penetration structure which concerns on embodiment of this invention. It is a perspective view which shows the cap installed in the uppermost layer, and piping. It is the schematic perspective view which looked at the sleeve shown in FIG. 2 from the bottom face. It is a perspective view which shows the member for cap formation used in order to form a cap. It is a schematic sectional drawing which shows the construction method of the division penetration structure which concerns on embodiment of this invention. It is a schematic sectional drawing which shows the state which the sleeve expanded. FIG. 5 is a schematic plan view showing a design range of a partition through hole, a range of a partition through hole formed with an error, a range in which the design range of the partition through hole is enlarged twice, a position of an outer edge of a cap, and the like. It is a perspective view which shows the state which extended the member for cap formation. It is a schematic perspective view which shows the modification of a cap. It is a schematic perspective view which shows the modification of a cap. It is a perspective view which shows the modification of a sleeve. It is a schematic sectional drawing which shows the construction method of the division penetration structure which concerns on the modification of this invention. It is a schematic sectional drawing which shows the state which the sleeve expanded. (A) is the elements on larger scale of another example of the sleeve provided with the inwardly projecting positioning part, (b) is an end view of the sleeve of FIG. 14 (a), (c) is the sleeve of the sleeve It is a partial expanded sectional view of another example. (A) is a front view of a sleeve of another example in which a sleeve fixing portion is integrally formed, and (b) is a perspective view of FIG. It is a perspective view of the sleeve fixing | fixed part formed as a different body from a sleeve. FIG. 6 is a schematic perspective view showing a stack structure of a sleeve in which a sleeve containing a non-thermally expandable material is stacked on a sleeve containing a thermally expandable material. It is a schematic perspective view which shows the modification of a sleeve. It is a schematic perspective view which shows the modification of a sleeve. It is a schematic perspective view which shows the modification of a sleeve. It is a schematic perspective view which shows the modification of a sleeve. It is a schematic perspective view which shows the modification of a sleeve. It is a schematic perspective view which shows the modification of a sleeve. It is a schematic perspective view which shows the stack structure of a sleeve. (A) is a schematic perspective view which shows another example of the stack structure of a sleeve, (b) is a longitudinal cross-sectional view of Fig.22 (a). It is a schematic sectional drawing which shows the conventional division penetration structure. It is a schematic sectional drawing which shows the conventional division penetration structure. It is a schematic sectional drawing which shows the state which set the cap disclosed by patent document 1 to the conventional division penetration structure.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a partition penetration structure 100 according to an embodiment of the present invention.

  In the partition through structure 100 according to the present embodiment, a pipe 5 or a wiring (hereinafter referred to as a pipe 5 or the like) is passed through a section through hole 16 formed in a floor 101 of a building. The building has a plurality of levels, and the floor 101 of each level is constituted by a wall made of concrete. Each floor 101 (wall body) is formed with partition through holes 16 using a cylindrical sleeve 10, and pipes 5 and the like are passed through these partition through holes 16.

  In the compartment penetration structure 100 shown in FIG. 1, the passage position of the piping 5 and the like in the compartment through hole 16 and the diameter of the compartment through hole 16 (inner diameter of the sleeve 10) are different from the design in the floor 101 of the intermediate layer or the lowermost layer. An error has occurred. That is, in the uppermost floor 101, as a result of the sleeve 10 </ b> A having the designed dimensions being installed at an appropriate position, the partition through hole 16 is formed as designed, and the pipe 5 or the like is passed through the center of the partition through hole 16. Yes. On the other hand, in the floor 101 of the intermediate layer, the partition through hole 16 is formed using the sleeve 10A having the design dimension, but the formation position of the partition through hole 16 (installation position of the sleeve 10A) is on the left side of the design position. Due to the deviation, the pipe 5 and the like pass through the position on the right side of the partition through hole 16. Further, in the lowermost floor 101, the pipe 5 or the like cannot be passed through the initially formed partition through hole, so that the sleeve 10A constituting the original partition through hole is removed, and the larger sleeve 10B is used to penetrate the partition. As a result, the diameter of the partition through-hole 16 (inner diameter of the sleeve 10B) is larger than the design dimension, and the pipe 5 and the like pass through the position on the left side of the partition through-hole 16. . In the partition through structure 100 shown in FIG. 1, a cap 30 is provided at the upper end of the sleeve 10 constituting each partition through hole 16 in order to fill a gap between the outlet of the partition through hole 16 and the pipe 5 and the like at all levels. is set up. These caps 30 have the same dimensions.

  First, the structure of the sleeve 10 constituting the partition through hole 16 will be described. The sleeve 10A (sleeve 10A having a design dimension) installed in the uppermost layer / intermediate layer and the sleeve 10B (sleeve 10B larger than the design dimension) installed in the lowermost layer are the same except that the diameters are different. It has a structure. Therefore, in the following, the sleeve 10A installed in the uppermost layer is shown in FIG.

  FIG. 2 is a perspective view showing the sleeve 10 </ b> A and the cap 30 installed in the uppermost layer and the pipe 5. FIG. 2 shows a state in which the formwork 2 and the reinforcing bar R are assembled in order to construct the uppermost floor 101 (wall body) (that is, in FIG. 2, the uppermost floor 101 (wall body) is constructed. The previous state is shown).

  The sleeve 10 is also referred to as a void, and includes a cylindrical sleeve body 12. The opening 19 of the sleeve body 12 functions as the partition through hole 16 (see FIG. 1), and the size of the opening 19 (inner diameter of the sleeve body 12) is larger than the outer diameter of the pipe 5 or the like. Or the like can be inserted through the opening 19.

  One or more attachment portions 24 are provided on the lower end 13 b of the sleeve body 12. The attachment portion 24 is integrally formed with the sleeve body 12. In the example of FIG. 2, four attachment portions 24 are provided at the lower end 13 b of the sleeve body 12, and these four attachment portions 24 are spaced apart at an angle of about 90 ° around the axis A of the sleeve 10. Each mounting portion 24 has a hole 26 for fixing the sleeve 10 to the floor base 1. Usually, the bottomed rectangular form 2 is for accommodating concrete 3 (FIG. 5B described later), and reinforcing bars R for reinforcing the concrete 3 are accommodated in the form 2. The concrete 3 and the reinforcing bar R constitute the floor foundation 1.

  A fixing member such as a metal wire such as a wire, a bolt, a screw, or a nail can be passed through the hole 26 in order to fix the sleeve 10 to the mold 2, the reinforcing bar R, or the concrete 3. In the present embodiment, the sleeve 10 is fixed to the reinforcing bar R by passing a metal wire or the like through the hole 26 of the attachment portion 24 and connecting both ends of the metal wire to the reinforcing bar R. Note that, optionally, grease for facilitating the removal of the fixing member is attached to the hole 26 so that the fixing member can be removed from the sleeve 10, or when the operator manually applies force to the attachment portion 24. The portion 24 may be broken and removed.

  The sleeve 10 includes a rib that protrudes from the outer surface of the sleeve body 12. In the example of FIG. 2, as the ribs, a plurality of ribs 12a (three in FIG. 2) extending substantially parallel to the axis A of the sleeve 10 and a plurality of ribs having an annular shape centering on the axis A of the sleeve 10 are used. 12b (three in FIG. 2), and these ribs 12a and 12b are integrally formed with the sleeve body 12. The ribs 12 a and 12 b serve to reinforce the sleeve 10 so that the sleeve 10 can withstand the force received from the concrete when the concrete is poured around the sleeve 10.

  FIG. 3 is a schematic perspective view of the sleeve 10A shown in FIG. 2 as viewed from the bottom. Referring to FIG. 3, in the sleeve 10 of the present embodiment, the lowermost rib 12 b among the plurality of ribs 12 b is provided at a position slightly higher than the lower end 13 b of the sleeve body 12 (for example, 3 mm to 20 mm). And a space 12c between the portion of the sleeve main body 12 below the lower surface of the lowermost rib 12b, the lowermost rib 12b (and the mounting portion 24 protruding from the lower end 13b of the sleeve main body 12). Is formed.

  The sleeve 10 having the above configuration is formed from a heat-expandable fireproof resin material. The refractory resin material is a resin composition containing a thermally expandable layered inorganic substance and an inorganic filler in a resin component. The sleeve 10 kneads each component of the resin composition using a known apparatus such as a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a reiki machine, a planetary stirrer, and the like. It can be obtained by molding by a method.

  In the present embodiment, the sleeve main body 12, the ribs 12a and 12b, and the mounting portion 24 of the sleeve 10 are integrally formed from the same thermally expandable fireproof resin material.

  As the resin component, known resin components can be widely used, and examples thereof include thermoplastic resins, thermosetting resins, rubber substances, and combinations thereof.

  Examples of the thermoplastic resin include polypropylene resins, polyethylene resins, poly (1-) butene resins, polypentene resins and other polyolefin resins, polystyrene resins, acrylonitrile-butadiene-styrene (ABS) resins, polycarbonate resins, polyphenylene ether resins, ( Examples thereof include synthetic resins such as (meth) acrylic resin, polyamide resin, polyvinyl chloride resin, novolac resin, polyurethane resin, and polyisobutylene.

  Examples of the thermosetting resin include synthetic resins such as polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, and polyimide.

  Rubber materials include natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, acrylic rubber And rubber materials such as epichlorohydrin rubber, polyvulcanized rubber, non-vulcanized rubber, silicon rubber, fluororubber, and urethane rubber.

  These synthetic resins and / or rubber substances can be used singly or in combination.

  Among these synthetic resins and / or rubber substances, those which are flexible and have rubber-like properties are preferable. The resin component having such properties can be highly filled with an inorganic filler, and the resulting resin composition is flexible and easy to handle. In order to obtain a resin composition that is more flexible and easy to handle, a non-vulcanized rubber such as butyl and a polyethylene resin are preferably used. Instead, an epoxy resin is preferable from the viewpoint of improving the fire resistance by increasing the flame retardancy of the resin itself.

  The thermally expandable layered inorganic material expands when heated. Such a heat-expandable layered inorganic material is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite. Thermally expandable graphite is a conventionally known substance, and powders such as natural scaly graphite, pyrolytic graphite, and quiche graphite are mixed with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, concentrated nitric acid, perchloric acid, A graphite intercalation compound was produced by treatment with a strong oxidant such as chlorate, permanganate, dichromate, dichromate, hydrogen peroxide, etc., and the layered structure of carbon was maintained. It is a kind of crystalline compound as it is.

  The heat-expandable graphite obtained by acid treatment as described above may be further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like. The particle size of the thermally expandable graphite is preferably 20 to 200 mesh. If the particle size is larger than 200 mesh, the degree of expansion of graphite is sufficient to obtain an expanded heat insulating layer, and if the particle size is smaller than 20 mesh, the dispersibility when blended into the resin is good and the physical properties are good. is there. Examples of commercially available products of thermally expandable graphite include “GREP-EG” manufactured by Tosoh Corporation, “GRAFGUARD” manufactured by GRAFTECH, and the like.

  When the expanded heat insulating layer is formed, the inorganic filler increases the heat capacity and suppresses heat transfer, and works as an aggregate to improve the strength of the expanded heat insulating layer. The inorganic filler is not particularly limited, and examples thereof include metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrite; calcium hydroxide, magnesium hydroxide, Water-containing inorganic substances such as aluminum hydroxide and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, barium carbonate and the like.

  In addition to these, inorganic fillers include calcium salts such as calcium sulfate, gypsum fiber, calcium silicate; silica, diatomaceous earth, dosonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite. , Imogolite, sericite, glass fiber, glass beads, silica balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, Examples include lead zirconate titanate, zinc stearate, calcium stearate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, and dewatered sludge. These inorganic fillers can be used alone or in combination of two or more.

  As a particle size of an inorganic filler, 0.5-100 micrometers is preferable, More preferably, it is 1-50 micrometers. When the amount of the inorganic filler added is small, the dispersibility greatly affects the performance, so that the particle size is preferably small, but if it is 0.5 μm or more, the dispersibility is good. When the addition amount is large, the viscosity of the resin composition increases and moldability decreases as the high filling progresses, but the viscosity of the resin composition can be decreased by increasing the particle size. Although a thing with a large diameter is preferable, the particle size of 100 micrometers or less is desirable at the point of the surface property of a molded object, and the mechanical physical property of a resin composition.

  Among the inorganic fillers, specific examples of aluminum hydroxide include “Hijilite H-31” (manufactured by Showa Denko) with a particle size of 18 μm, “B325” (manufactured by ALCOA) with a particle size of 25 μm, and calcium carbonate. Examples thereof include “Whiteon SB Red” having a particle diameter of 1.8 μm (manufactured by Bihoku Flour Industries), “BF300” having a particle diameter of 8 μm (manufactured by Bihoku Flour Industries).

  Furthermore, the resin composition constituting the thermally expandable refractory material may further contain a phosphorus compound in addition to the above-described components in order to increase the strength of the expanded heat insulating layer and improve the fireproof performance. The phosphorus compound is not particularly limited. For example, red phosphorus; various phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate; sodium phosphate, Examples thereof include metal phosphates such as potassium phosphate and magnesium phosphate; ammonium polyphosphate; compounds represented by the following chemical formula (1). Among these, red phosphorus, ammonium polyphosphate, and a compound represented by the following chemical formula (1) are preferable from the viewpoint of fireproof performance, and ammonium polyphosphate is more preferable in terms of performance, safety, cost, and the like.

  In the chemical formula (1), R 1 and R 3 represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or a carbon number Represents 6 to 16 aryloxy groups.

  As red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of safety such as moisture resistance and not spontaneously igniting during kneading, a material in which the surface of red phosphorus particles is coated with a resin is preferably used. The ammonium polyphosphate is not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferably used from the viewpoint of handleability and the like. Examples of commercially available products include “AP422” and “AP462” manufactured by Clariant, “FR CROS 484” and “FR CROS 487” manufactured by Budenheim Iberica.

  The compound represented by the chemical formula (1) is not particularly limited, and examples thereof include methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, n-propylphosphonic acid, n-butylphosphonic acid, and 2-methylpropylphosphone. Acid, t-butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphine Examples include acids, phenylphosphinic acid, diethylphenylphosphinic acid, diphenylphosphinic acid, bis (4-methoxyphenyl) phosphinic acid and the like. Among them, t-butylphosphonic acid is preferable in terms of high flame retardancy although it is expensive. The said phosphorus compound can also be used independently and can also use 2 or more types together.

  The resin composition contains 10 to 350 parts by weight of the thermally expandable layered inorganic substance and 30 to 400 parts by weight of the inorganic filler with respect to 100 parts by weight of the resin component such as the thermoplastic resin and epoxy resin. Those are preferred.

  The total of the thermally expandable layered inorganic material and the inorganic filler is preferably in the range of 50 to 600 parts by weight with respect to 100 parts by weight of the resin component.

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

  When the total amount of the thermally expandable layered inorganic material and the inorganic filler in the resin composition is 50 parts by weight or more, a sufficient amount of fire resistance is obtained by satisfying the amount of residue after combustion, and if it is 600 parts by weight or less Physical properties are maintained.

  Furthermore, the resin composition used in the present invention is within a range that does not impair the object of the present invention, as required, in addition to antioxidants such as phenol-based, amine-based, sulfur-based, metal harm-preventing agents, charging agents. Additives such as inhibitors, stabilizers, crosslinking agents, lubricants, softeners, pigments, tackifying resins, molding aids, and tackifiers such as polybutenes and petroleum resins can be included.

  The heat-expandable refractory material is available as a commercial product. For example, a fire barrier manufactured by Sumitomo 3M Limited (a heat-expandable refractory material composed of a resin composition containing chloroprene rubber and vermiculite, expansion coefficient: 3 times, heat Conductivity: 0.20 kcal / m · h · ° C., Mitsui Metal Paint Co., Ltd., Medihicut (thermally expandable refractory material comprising a resin composition containing polyurethane resin and thermally expandable graphite, expansion coefficient: 4 times, heat Conductivity: 0.21 kcal / m · h · ° C.), and thermally expandable refractory materials such as Sekisui Chemical Co., Ltd. Fibrok.

  The heat-expandable refractory material is not particularly limited as long as the heat-expandable refractory material is insulated by the expansion layer when exposed to a high temperature such as a fire and has strength of the expansion layer. It is preferable that the volume expansion coefficient after heating for 30 minutes under a heating condition of 50 kW / m 2 is 3 to 50 times. When the volume expansion coefficient is 3 times or more, the expansion volume can sufficiently fill the burned-out portion of the resin component, and when it is 50 times or less, the strength of the expansion layer is maintained and flame penetration is prevented. Effect is maintained.

  Next, the cap 30 of this embodiment will be described.

  As shown in FIG. 1, the cap 30 is installed at the upper end of the sleeve 10 (sleeve main body 12) that constitutes the partition through-hole 16 of each level. As shown in FIG. 2, the cap 30 has an annular shape and has an opening 31 having a cross section corresponding to the pipe 5 and the like, and the pipe 5 and the like are passed through the opening 31.

  As shown in FIG. 2, a cut 33 is formed in the cap 30. The cut 33 is formed so as to reach the opening 31 from the outer surface of the cap 30 and divides the cap 30. The cut 33 is formed so that the pipe 5 and the like can be passed through the opening 31 even when the pipe 5 and the like are already passed through the partition through hole 16. That is, if both ends of the cap 30 facing each other through the cut line 33 are gripped and the cap 30 is expanded in diameter and wound around the pipe 5 or the like, the pipe 5 or the like is passed through the partition through hole 16. Even in the state of being present, the pipe 5 and the like can be passed through the opening 31. In the present embodiment, since the contact surfaces of the cut line 33 facing each other are bent, the engagement force when the cut line 33 is combined is strengthened, and after the cap 30 is attached to the sleeve 10, the cap 30 is moved to the sleeve by external force. It can be prevented from coming off from 10.

  The opening 31 and the cut 33 are formed after the pipe 5 or the like is passed through the partition through hole 16. That is, the cap forming member 90 shown in FIG. 4 in which the opening 31 and the cut 33 are not formed is carried into the building construction site. Then, at the construction site, the partition through hole 16 is formed using the sleeve 10, and the pipe 5 and the like are passed through the partition through hole 16, and then the opening 31 and the cut 33 are formed in the cap forming member 90 shown in FIG. 4. As a result, the cap 30 is obtained. The formation position and diameter of the opening 31 are set based on the passage position of the pipe 5 and the like in the partition through hole 16 and the diameter of the pipe 5 and the like.

  The cap 30 (cap forming member 90) described above may be formed of metal, or may be a molded body of a non-fire resistant or fire resistant resin composition. Further, for example, the cap 30 (cap forming member 90) can be formed from a vinyl chloride resin containing or not containing a plasticizer, or a resin composition such as rubber. Further, a finishing layer such as a coating may be further applied to the cap 30 (cap forming member 90) so as to give an aesthetic appearance. For example, the cap 30 (cap forming member 90) is formed of a refractory resin composition containing a resin component such as butyl rubber, which is the same as or different from the refractory resin composition constituting the sleeve 10. Further, in a specific embodiment, the cap 30 (cap forming member 90) is a molded body of a resin composition having a composition different from that of the sleeve 10, and can be visually distinguished from the sleeve 10 (for example, red, yellow, orange). , Blue, green, etc.). Further, the cap 30 (cap forming member 90) may be colored with a fluorescent color so that it can be visually distinguished even at night. The cap 30 (cap forming member 90) is formed of a material having extensibility such as rubber in order to reliably cover the inner surface of the partition through hole 16 (sleeve 10) and the outer surface of the pipe 5 or the like. It is preferred that

  Next, a construction method for constructing the partition penetration structure 100 of the present embodiment using the sleeve 10 and the cap 30 described above will be described with reference to FIGS.

  First, as shown in FIG. 5A, the sleeve 10 is fixed to the floor foundation 1. The sleeve 10 is fixed to the floor base 1 by, for example, screwing the bolt 28 into the floor base 1 through the hole 26 of the mounting portion 24 of the lower end 13b of the sleeve 10. At the position corresponding to the sleeve 10 at the bottom of the mold 2, a hole for inserting the pipe 5 or the like is made.

  Next, as shown in FIG. 5 (b), the concrete 3 is poured into the floor foundation 1. At this time, the thickness, that is, the height H of the concrete 3 is made equal to the distance from the lower end 13b of the sleeve body 12 to the upper end 13a of the sleeve 10 body. In this way, the concrete 3 is cast around the outside of the sleeve 10 while leaving the opening 19 inside the sleeve 10, and a wall body forming the floor 101 (see FIG. 1) is formed. The opening 19 inside the sleeve 10 functions as the partition through hole 16. Here, since the lowest rib 12b provided on the sleeve body 12 is provided at a position slightly higher than the lower end 13b of the sleeve body 12, when the concrete 3 is placed around the sleeve 10, the lowest rib 12b is provided. A space 12c (FIG. 3) formed by the portion of the sleeve body 12 below the lower surface of the lower rib 12b, the lowermost rib 12b, and (and the mounting portion 24 protruding from the lower end 13b of the sleeve body 12). The concrete 3 enters (see) and the sleeve 10 is fixed more firmly in the concrete 3. In addition, by laying the concrete 3 at a height lower than the height of the sleeve 10 (sleeve body 12), the upper end portion of the sleeve 10 (sleeve body 12) may be visible.

  Next, as shown in FIG. 5C, the pipe 5 or the wiring is passed through the partition through hole 16. The pipe 5 includes various pipes such as a water pipe, a refrigerant pipe, a heat medium pipe, a gas pipe, and an intake / exhaust pipe. The wiring includes various cables such as a power cable and a communication cable. In addition, the piping 5 or wiring passed through the partition through-hole 16 may be one or plural.

  Next, the opening 31 is formed in the cap forming member 90 shown in FIG. At this time, the diameter of the opening 31 is adjusted based on the diameter of the pipe 5 or the like passed through the partition through hole 16, and the formation position of the opening 31 is adjusted based on the passing position of the pipe 5 or the like in the partition through hole 16. . For example, as shown in FIG. 5C, when the pipe 5 is passed through the center position of the partition through hole 16, the opening 31 is formed at the center position of the cap forming member 90. Then, by forming the cut line 33 in the cap forming member 90, the cap 30 shown in FIG. 2 is obtained.

  Next, as shown in FIG. 5 (d), the cap 30 is passed through the opening 31 of the cap 30 so that the cap 30 closes the partition through hole 16 with the cap 30. 12 at the upper end 13a).

  The partition penetrating structure 100 shown in FIG. 1 is constructed by performing the work shown in FIG. 5 for each layer. That is, the operations shown in FIGS. 5A to 5C are performed for each of the uppermost layer, the intermediate layer, and the lowermost layer, so that a plurality of partition through holes 16 (the uppermost layer, the intermediate layer, and the lowermost partition through holes are provided). The pipe 5 is passed through 16). A cap forming member 90 is prepared for each partition through hole 16 in each layer, and an opening 31 and a cut 33 are formed in each cap forming member 90, whereby a cap 30 is obtained for each partition through hole 16. It is done. At this time, the position and diameter of the opening 31 formed in each cap forming member 90 is such that the passage position of the pipe 5 or the like in each partition through-hole 16 or the pipe 5 or the like passed through each partition through-hole 16 or the like. It is set based on the diameter. 5D is performed for each layer (uppermost layer / intermediate layer / lowermost layer), so that each cap 30 can be passed through the opening 31 of each cap 30. It is installed at the upper end of the compartment through hole 16 (sleeve 10).

  When a fire occurs from the downstairs, as shown in FIG. 6, the sleeve 10 expands due to the heat of the fire, thereby filling the gap between the sleeve 10 and the pipe 5 or the like. This prevents the fire from propagating to the upper floor via the opening (the partition through hole 16) of the sleeve 10.

  In the present embodiment, as shown in FIG. 1, even if the passage position of the pipe 5 or the like in the partition through-hole 16 or the diameter of the partition through-hole 16 is different from the design, the cap 30 separates the partition through-hole 16. The outer diameter dimension of the cap forming member 90 (cap 30) is set larger than the outer dimension of the partition through hole 16 (opening 19 of the sleeve 10) so that the space between the pipe 5 and the like can be covered. Specifically, the cap forming member 90 (cap 30) has an external dimension obtained by resembling the design dimension of the external shape of the partition through hole 16 (opening 19 of the sleeve 10) more than twice.

  If the outer dimension of the cap forming member 90 (cap 30) is set as described above, even if a general error occurs in the construction of the partition through-hole 16, the cap 30 causes the partition through-hole 16 and the pipe 5 to be formed. And the like can be covered. Hereinafter, a specific description will be given with reference to FIG.

In FIG. 7, the A range corresponds to the design range of the partition through hole 16 (opening 19 of the sleeve 10), the B range and the C range correspond to the range of the partition through hole 16 formed with an error, and the D range. Corresponds to a range in which the design range of the partition through-holes 16 is doubled similarly. In the present invention, the fact that an error has occurred in the construction of the partition through-holes 16 means that the diameter R of the constructed partition through-holes 16 is different from the design value _RA (A-range diameter _RA ) as in the B range. In addition, as in the C range, it means that the formation position of the partition through hole 16 is deviated from the design position (A range position). In general, when such a construction error occurs, the inventors of the present invention have a formation range of the partition through-hole 16 that is the above-described D range (a range in which the design range of the partition through-hole 16 is doubled twice). ). Therefore, if the outer dimension of the cap 30 is set to be twice or more the design dimension of the outer shape of the partition through-hole 16 as described above, even if there is a general error in the construction of the partition through-hole 16, the cap 30 can cover the entire partition through-hole 16 (the entire B range or C range). That is, as shown in FIG. 7, the outer edge of the cap 30 is located outside the D range, or the outer edge of the cap 30 is located on the circumference of the D range. The whole (the whole of the B range and the C range) can be positioned. For this reason, even if piping 5 etc. have passed any position (any position in B range and C range) in division penetration hole 16, cap 30 shall be provided with opening 31 corresponding to piping 5 grade. If the cap 30 is installed at the upper end of the partition through hole 16 (sleeve 10) so that the pipe 5 or the like is passed through the opening 31, the cap 30 covers the gap between the partition through hole 16 and the pipe 5 or the like. Can do. Note that the cap 30 (cap forming member 90) is preferably formed from a material having extensibility such as rubber so as to be able to cope with a larger construction error. In this way, as shown in FIG. 8, the range that can be covered with the cap 30 can be expanded by extending the cap 30 (cap forming member 90), so that the partition through-hole 16 is formed outside the D range. Even when such a large construction error occurs, the cap 30 can cover the gap between the partition through hole 16 and the pipe 5 ((the broken line in FIG. 8 extends the cap forming member 90). The solid line in FIG. 8 shows the state after the cap forming member 90 is extended).

  When a plurality of floors are formed in a building as shown in FIG. 1, a plurality of caps 30 having the above-described outer dimensions (the outer dimensions are at least twice the design dimension of the outer diameter of the partition through-holes 16). If a plurality of caps 30) are prepared, even if the outer diameter dimensions of these caps 30 are uniform, it is possible to cover between the partition through holes 16 and the pipes 5 and the like in all the layers. Therefore, since it is not necessary to prepare caps 30 having different dimensions for each level, the space between the partition through holes 16 and the pipes 5 and the like in all levels can be easily covered.

  And in this embodiment, since the clearance gap between the division through-hole 16 and piping 5 grade | etc., In all the hierarchies can be coat | covered as mentioned above, the inside of each of the division through-hole 16 cannot be seen, but visual aesthetics were maintained. In addition, the volume of sound transmitted from the lower floor to the upper floor can be reduced, and the fire resistance of the partition penetration structure 100 is improved.

  The present invention is not limited to the above-described embodiment, and various modifications can be made.

  For example, the cut 33 shown in FIG. 2 may not be formed in the cap 30. Even if the cut 33 is not formed, the cap 30 can be attached to one end of the sleeve 10 before passing the pipe 5 or the like through the partition through-hole 16, and even after the pipe 5 or the like is passed through the partition through-hole 16, The pipe 5 or the like can be attached by passing the end of the pipe 5 or the like through the opening 31 of the cap 30 and moving the cap 30 to the position of the sleeve 10 along the pipe 5 or the like.

  Further, instead of the cap 30 shown in FIG. 2, caps 35 and 40 shown in FIGS. 9A and 9B may be used. The caps 35 and 40 are a combination of a pair of halves, and an opening corresponding to the pipe 5 or the like is formed by a recess formed in each half.

  Specifically, the cap 35 shown in FIG. 9A includes a pair of halves 36 and 36 and a shaft member 37 that connects the pair of halves 36 and 36 at a first end. The halves 36 and 36 are formed with semicircular recesses 39a and 39a, respectively. The cap 35 opens and closes a pair of halves 36, 36 around a shaft member 37, and the pair of halves 36, 36 are a pair of fitting portions at a second end opposite to the support member 37. When the connection is closed via 38, the opening is formed by the recesses 39a, 39a, and the pipe 5 and the like can be passed through the opening.

  The cap 40 shown in FIG. 9B has a pair of halves 41 and 42, and the halves 41 and 42 are formed with semicircular recesses 45a and 45a, respectively. Fitting portions 43 and 44 for fitting each other are provided at both ends of each of the halves 41 and 42, and the halves 41 and 42 are connected via the fitting portions 43 and 44. When closed, the opening is constituted by the recesses 45a and 45a, and the pipe 5 and the like can be passed through the opening.

  The caps 35 and 40 shown in FIG. 9 can also be formed using the cap forming member 90 shown in FIG. That is, after the piping 5 or the like is passed through the partition through-hole 16, an opening is formed in the cap forming member 90, and then a cut is formed in the cap forming member 90, so that two cap forming members 90 are formed. By dividing into halves, the halves 36, 36, 41, 42 constituting the caps 35, 40 can be obtained.

  Moreover, the cap 50 shown in FIG. 10 may be used instead of the cap 30 shown in FIG. The cap shown in FIG. 10 is manufactured from a stretchable material such as silicone. In the extended state shown in FIG. 10A, the cap 50 has a diameter stepwise by extending the small-diameter cylindrical portion 51 to one side of the large-diameter cylindrical portion 51 formed continuously therewith. It changes to have a substantially conical shape (in the example shown in FIG. 10A, the cylinder portion 51b extends to one side of the cylinder portion 51a, and the cylinder portion 51c extends to one side of the cylinder portion 51b. The cap part 50d has a substantially conical shape whose diameter changes in five stages by the cylinder part 51d extending to one side of the cylinder part 51c and the cylinder part 51e extending to one side of the cylinder part 51d. ). Then, the cap 50 is nested in a small diameter cylindrical portion 51 inside the large diameter cylindrical portion 51 continuous to the other side from the extended state shown in FIG. ).

  In the cap 50 described above, the cylindrical portion 51a having the largest diameter (the cylindrical portion 51a positioned at the other end in the extended state) is similar to the design dimension of the outer shape of the partition through hole 16 (opening 19 of the sleeve 10) more than twice. It has an enlarged external dimension. Further, an opening 53 having a cross section corresponding to the pipe 5 or the like is formed on the end surface 52 of the cylindrical portion 51e having the smallest diameter (the cylindrical portion 51a positioned at one end in the extended state). It communicates with the cavity 54 passing through the inside of the. The cap 50 is installed at the upper end of the partition through-hole 16 (sleeve 10) so that the pipe 5 and the like are passed through the cavity 54 and the opening 53.

  Note that the opening 53 is formed after the piping 5 or the like is passed through the partition through hole 16, and the formation position of the opening 53 is not limited to the end face 52 shown in FIG. 10. That is, a cap forming member having the above-mentioned outer dimensions and having no opening 53 is carried into the building construction site. Then, after the partition through hole 16 is formed using the sleeve 10 at the construction site and the pipe 5 or the like is passed through the partition through hole 16, the opening 53 is formed in the cap forming member, so that the cap 50 is obtained. The diameter of the opening 53 is set based on the diameter of the pipe 5 or the like passed through the partition through hole 16, and the position where the opening 53 is formed is set based on the passing position of the pipe 5 or the like in the partition through hole 16. When the diameter of the pipe 5 or the like is larger than the diameter of the cylinder part 51 e and the pipe 5 or the like does not pass through the center of the partition through hole 16, the opening 53 can be formed so as to straddle the plurality of cylinder parts 51. . Then, the cap 50 is installed at one end of the partition through-hole 16 so that the pipe 5 and the like are passed through the opening 53 and the cavity 54, whereby the cap 50 allows the inner surface of the partition through-hole 16 and the outer surface of the pipe 5 and the like. Can be covered.

  According to the cap 50 described above, even if the pipe 5 or the like does not extend straight, if the cap 50 is extended so as to follow the extending direction of the pipe 5 or the like, the inner surface of the partition through hole 16 and the outer surface of the pipe 5 or the like. Can be covered. Moreover, since the cap 50 can be made compact by contracting the cap 50 as shown in FIG. 10B, the accommodation space of the cap 50 at the time of conveyance or the like can be kept small.

  Even in a state where the pipe 5 or the like is already passed through the partition through-hole 16, in order to pass the pipe 5 or the like through the opening 53 of the cap 50, there is a break from the outer surface of the cap 50 to the opening 53 and dividing the cap 50. It may be formed. Moreover, the number of the cylinder parts 51 which comprise the cap 50 is not restricted to five shown in FIG.

  Further, when the caps 30, 35, 40, and 50 shown in FIGS. 2, 9, and 10 are used, the non-fire resistance between the inner surfaces of the caps 30, 35, 40, and 50 and the outer surface of the pipe 5, etc. Alternatively, the caps 30, 35, 40, and 50 may be fixed by filling with a fire-resistant putty or cotton. By doing in this way, it can coat | cover more reliably between the sleeve 10 and piping 5 grade | etc.,.

  Further, in order to protect the caps 30, 35, 40, 50 from damage, etc., even if the caps 30, 35, 40, 50 are coated with a resin such as an olefin resin or a vinyl chloride resin or a coating material such as a paint. Good. Further, in order to reduce friction caused by contact between the cap 30, 35, 40, 50 and the pipe 5, etc., the inner surface of the cap 30, 35, 40, 50 may be rounded or a sliding surface provided with a lubricious coating. Good.

  The sleeve 10 can be deformed as shown in FIG. A sleeve 10 shown in FIG. 11 includes a hollow substantially cylindrical sleeve body 12 and an annular flange portion 14 provided at the upper end of the sleeve body 12. The sleeve body 12 is formed from one rectangular sheet-like member, and the flange portion 14 is also formed from one annular sheet-like member. The flange portion 14 extends outward from the sleeve body 12 in the axial direction A of the sleeve 10. As shown in FIG. 11A described later, the width W of the flange portion 14 is larger than the thickness T of the sleeve body 12.

  Returning to FIG. 11A, an annular fixture 20 as a sleeve fixing member for fixing the sleeve body 12 to the floor base 1 (see FIG. 2) is attached to the lower end of the sleeve body 12. The fixture 20 includes a metal ring 22 having an inner diameter that matches the outer diameter of the sleeve main body 12 and a plurality of attachment portions 24 (four in FIG. 11A) spaced apart from the ring 22. Each mounting portion 24 has a hole 26 for passing a bolt 28 (see FIG. 12A).

  In this embodiment, the sleeve body 12 and the flange portion 14 are integrally formed from the same thermally expandable fireproof resin material. The refractory resin material is a resin composition containing a thermally expandable layered inorganic substance and an inorganic filler in a resin component. The composition of this resin composition is as described in the first embodiment.

  Next, the construction method of the partition penetration structure 100 in the case of using the sleeve 10 shown in FIG. 11 is demonstrated, referring FIG. 12 (a)-FIG.12 (c). In the following, the case where the cap 30 shown in FIG. 2 is installed at the upper end of the sleeve 10 will be described as an example. However, the caps 35, 40, and 50 shown in FIGS. It can be installed.

  First, as shown in FIG. 12A, a fixing tool 20 is attached to the lower end portion of the sleeve 10, and the sleeve 10 is fixed to the floor base 1. The sleeve 10 is fixed to the floor base 1 by, for example, screwing a bolt 28 into the floor base 1 through the hole 26 of the mounting portion 24.

  Next, as shown in FIG. 12 (b), concrete is poured into the floor substrate 1. At this time, the thickness, that is, the height H of the concrete is made equal to the distance from the lower end 13 b of the sleeve body 12 to the lower surface 15 of the flange portion 14. In this way, the concrete 3 is placed around the outside of the sleeve 10 while leaving the opening 19 inside the sleeve 10. The opening inside the sleeve 10 acts as a partition through hole 16.

  Next, as shown in FIG. 12 (c), one or a plurality of pipes 5 are provided through the partition through holes 16 so as to penetrate the concrete 3.

  Next, an opening 31 (see FIG. 2) is formed in the cap forming member 90 shown in FIG. At this time, the position and diameter of the opening 31 formed in the cap forming member 90 are adjusted based on the passage position of the pipe 5 and the like in the partition through hole 16 and the diameter of the pipe 5 and the like. Then, by forming the cut line 33 in the cap forming member 90, the cap 30 shown in FIG. 2 is obtained.

  Next, as shown in FIG. 12 (d), the cap 30 is passed through the opening 31 of the cap 30, and the cap 30 is closed with the upper end 13 a (flange portion) of the sleeve body 12 so that the cap 30 closes the partition through-hole 16. 14).

  Then, by performing the above-described operation of FIG. 12 for each layer, a partition through structure in which the pipe 5 or the like is passed through the partition through hole 16 of each layer is constructed. That is, the operations shown in FIGS. 12A to 12C are performed for each of the uppermost layer / intermediate layer / lowermost layer, so that a plurality of partition through holes 16 (the uppermost layer / intermediate layer / lowermost layer through holes) The pipe 5 is passed through 16). A cap forming member 90 is prepared for each partition through hole 16 in each layer, and an opening 31 and a cut 33 are formed in each cap forming member 90, so that a cap is formed for each partition through hole 16 in each layer. 30 is obtained. At this time, the position and diameter of the opening 31 formed in each cap forming member 90 is such that the passage position of the pipe 5 or the like in each partition through-hole 16 or the pipe 5 or the like passed through each partition through-hole 16 or the like. It is set based on the diameter. Then, the work shown in FIG. 12D is performed for each layer (for each of the uppermost layer, the intermediate layer, and the lowermost layer), so that each cap 30 is passed through the opening 31 of each cap 30. It is installed at the upper end of the compartment through hole 16 (sleeve 10).

  When a fire occurs from the downstairs, as shown in FIG. 13, the sleeve body 12 and the flange portion 14 of the sleeve 10 are expanded by the heat of the fire, thereby filling the gap between the sleeve 10 and the pipe 5 or the like. . This prevents the fire from propagating to the upper floor via the opening (the partition through hole 16) of the sleeve 10.

  As shown in FIG. 11, the sleeve main body 12 and the flange portion 14 may be provided with continuous cuts 17 passing from the upper end to the lower end of the sleeve 10 along the longitudinal direction of the sleeve 10. If the sleeve 10 is formed from a refractory resin composition containing a resin component having elasticity, such as butyl rubber, and the cut line 17 extending from end to end along the longitudinal direction of the sleeve 10 is provided, the concrete 2 of the sleeve 10 is provided. It is easy to attach and detach from the sleeve, and attach and detach the sleeve 10 from the pipe 5 and the like. For example, the pipe 5 or the like can be applied first, and then the sleeve 10 can be applied around the pipe 5 or the like. Further, the cut 17 in FIG. 11A shows a straight cut along the axial direction of the sleeve 12, but as shown in FIG. ).

  The sleeve body 12 and the flange portion 14 may be formed of different heat-expandable fireproof resin materials, or the sleeve body 12 is formed of a heat-expandable fireproof resin material, and the flange portion is formed of metal. Also good. Even in such a case, at least the sleeve body 12 expands in the event of a fire, and the spread of fire through the sleeve 10 is prevented.

  Further, the flange portion 14 may be omitted, and in this case, the cap 30 may be attached on the sleeve body 12.

  Further, the number of attachment portions 24 of the fixture 20 is not limited to four, and may be any number sufficient to fix the sleeve 10 to the floor base 1.

  Moreover, the fixing tool 20 may be comprised from materials other than a metal. For example, the fixed part 20 may be formed from a flammable resin material. In another preferred embodiment, fixture 20 is formed from a hard resin, including hard vinyl chloride. When the fixing portion 20 is made of hard resin, strength is given to the lower end portion of the sleeve 10 to which the sleeve 10 fixing portion 20 is attached, and the sleeve 10 is deformed by the pressure of the poured concrete 3 when the concrete 3 is placed. Can be prevented or suppressed.

  Further, the fixture 20 may be omitted.

  Also, the sleeve 10 shown in FIG. 11 may be provided with ribs for reinforcing the strength of the sleeve 10 such as the sleeve 12a and / or 12b shown in FIG.

  The sleeve 10 can also be deformed as shown in FIGS. 14 (a) and 14 (b).

  In the sleeve 10 shown in FIGS. 14A and 14B, one or a plurality of positioning portions 10a protruding inward from the inner peripheral surface of the sleeve main body 12 are provided. As shown in FIG. 14 (a), the positioning portion 10a has two positions along the longitudinal direction of the sleeve 10 above and below the center of the longitudinal direction of the sleeve 10, specifically, two positions near the upper end and the lower end of the sleeve 10. In place. As shown in FIG. 14B, when viewed in an end view, the positioning portions 10a (four in the drawing) are arranged in a state of being spaced apart at equal intervals. There is a gap between the positioning portion 10a and the pipe 5 or the like. With such a configuration, when the pipe 5 or the like is disposed in the sleeve 10 in the operation corresponding to FIG. 12C, the positioning portion 10 a positions the pipe 5 or the like with a small shift in the sleeve 10. To help. When the inward protrusion of the positioning portion 10a is long, the pipe 5 and the like are arranged (centered) at the axial center position in the sleeve 10 without being substantially displaced or inclined.

  The positioning part 10a may be further changed as shown in FIG. Specifically, along the longitudinal direction of the sleeve 10 (sleeve body 12), a positioning portion 10b is provided on the center side of the positioning portion 10a, a positioning portion 10c is provided on the center side of the positioning portion 10b, and the positioning portion 10b. The protruding length of the positioning portion 10a is larger than that of the positioning portion 10a, and the protruding length of the positioning portion 10c is larger than that of the positioning portion 10b. However, when the pipe 5 or the like is disposed in the sleeve 10 so that the pipe 5 or the like does not come into contact with the positioning part 10c and is damaged, it is preferable that a gap exists between the positioning part 10c and the pipe 5 or the like. With such a configuration, when the pipe 5 or the like is arranged in the sleeve 10, the pipe 5 or the like is arranged at the axial center position in the sleeve 10 regardless of whether the pipe 5 is arranged from the top or the bottom. Induced. The positions of the positioning portions 10a, 10b and 10c in the radial direction of the sleeve 10 are preferably aligned, but the number of the positioning portions 10a, 10b and 10c in the longitudinal direction and the radial direction of the sleeve 10 is not limited. Furthermore, any one of the positioning portions 10a, 10b, and 10c may be omitted.

  In FIG. 14, the illustration of the cap is omitted, but when the sleeve 10 shown in FIG. 14 is used, the caps 30, 35, 40, and 50 are installed on the flange 14 that forms the upper end of the sleeve 10. The gap between the outer surface of the pipe 5 or the like and the inner surface of the partition through hole 16 (sleeve 10) is covered.

  Further, as shown in FIGS. 15A and 15B, the sleeve 10 is provided on a sleeve main body 12 for fixing the sleeve 10 to a floor base (a beam or wall of a building made of reinforced concrete) when placing concrete. You may further provide the sleeve fixing | fixed part 60 integrally formed. The sleeve fixing portion 60 as the sleeve fixing member is also referred to as a sleeve holder.

  The sleeve fixing portion 60 is made of synthetic resin and is formed integrally with the sleeve main body 12 by injection molding. In one preferred embodiment, the sleeve fixing portion 60 is made of a thermoplastic resin such as polypropylene and has appropriate flexibility. In another preferred embodiment, the sleeve fixing portion 60 is formed from the same thermally expandable refractory resin material as the sleeve body 12. According to this aspect, the manufacturing cost can be suppressed. In another preferred embodiment, the sleeve fixing portion 60 is formed from the same fireproof resin material excluding the heat-expandable graphite from the sleeve body 12, and is formed integrally with the sleeve body 12 by two-color formation. According to this aspect, the appearance of the sleeve fixing portion 60 is improved and the strength is improved.

  In another preferred embodiment, as shown in FIG. 16, the sleeve fixing portion 60 is formed separately from the sleeve body 12. The sleeve fixing portion 60 includes an annular member 64 (annular in FIG. 16) having a size to be attached to the outside of the sleeve 10. According to this aspect, since the sleeve main body 12 may be cylindrical, the sleeve main body 12 can be manufactured by extrusion molding, and manufacture becomes easy. In one preferred embodiment, the sleeve fixing portion 60 is made of a combustible resin material and burns by heat such as a fire. For this reason, the sleeve fixing portion 60 may remain attached to the sleeve 10 even after the concrete is laid. In another preferred embodiment, the sleeve fixing portion 60 is made of a hard resin such as hard vinyl chloride. When the sleeve fixing portion 60 is made of hard resin, strength is applied to the lower end portion of the sleeve 10 to which the sleeve fixing portion 60 is attached, and the sleeve 10 is deformed by the pressure of the poured concrete 3 when the concrete 3 is placed. Can be prevented or suppressed.

In the example shown in FIGS. 15 and 16, a clip portion 61 formed so that the reinforcing bar R is fitted is provided at one end of the sleeve fixing portion 60. The clip part 61 has a substantially C-shaped cross section in which a part of the substantially cylindrical peripheral surface is opened, and the inner diameter thereof is formed to be slightly smaller than the outer diameter of the reinforcing bar R to be fitted. Although in this embodiment the axis _{C 1} of the clip portion 61 is perpendicular to the axis C ₂ of the sleeve 10 (sleeve body 12), the axis _{C 1} of the clip portion 61 is the axis of the sleeve 10 (sleeve body 12) it may be an acute angle (e.g. 45 °) with respect to C _2. A pair of guide lip portions 62 that are folded back in the widening direction are formed on the opposing opening edge portions of the clip portion 61 to facilitate the fitting of the reinforcing bars R. An arm portion 63 is continuously formed on the clip portion 61 and projects to the side of the clip portion 61. The cross section of the arm part 63 is formed in a substantially cross shape and reinforces the rigidity of the clip part 61. The distal end of the arm part 63 is connected to the sleeve body 12.

  The position of the sleeve fixing portion 60 along the longitudinal direction of the sleeve 10 is not particularly limited, but the sleeve fixing portion 60 is a position where the sleeve fixing portion 60 can be attached to an arbitrary position of the reinforcing bar R via the clip portion 61. When the tube length of the sleeve 10 becomes long, it is possible to hold the sleeve 10 by two or more sleeve fixing portions 60 that are attached separately in the tube length direction of the sleeve 10. Additionally or alternatively, two or more sleeve fixing portions 60 may be disposed in the circumferential direction of the sleeve 10. The sleeve fixing portion 60 of the present invention can be attached to a reinforcing bar R that is horizontally arranged or a reinforcing bar R that is vertically arranged (for example, a stirrup of a beam). The fixing portion 60 can be cut from the sleeve body 12.

  The construction method of the through-hole using the sleeve fixing | fixed part 60 is as follows. First, the reinforcing bars are assembled in the beam or wall formwork, and the clip portion 61 of the sleeve 10 fixture 60 is attached to at least one reinforcing bar R to position the sleeve 10. Next, concrete is placed in the formwork, and the sleeve 10 is embedded and fixed in the concrete while the sleeve fixing portion 60 is provided. If the mold is removed after the concrete is hardened, a through hole is formed in the sleeve 10. By using the sleeve fixing portion 60 in this manner, the sleeve 10 can be positioned easily and accurately without the need for using a tool.

  Further, as shown in FIGS. 17A to 17D, the non-thermal expansion is performed along the axial direction of the sleeve 10 with respect to the sleeve 10 including the sleeve main body 12 containing the thermally expandable refractory resin material. The sleeves 70 containing the functional material may be further stacked. The sleeve 70 may be disposed either above, below, or both above and below the sleeve 10. The sleeve 70 may have the same configuration as the sleeve 10 except that the sleeve body 12 of the sleeve 10 is made of a heat-expandable refractory resin material, whereas the hollow sleeve body 72 of the sleeve 70 is connected to the sleeve body 12. Is made of non-thermally expansible materials such as hard vinyl chloride and metals of different materials. Preferably, the sleeve 70 is formed from a non-thermally expandable refractory resin material such as hard vinyl chloride.

  According to this tower type configuration, even when the thickness of the concrete floor is increased, the thickness of the sleeve 10 can be adjusted by stacking the sleeves 70. Since the sleeve 70 made of hard vinyl chloride is less expensive than the sleeve 10 made of a heat-expandable material, the thickness of the entire sleeve structure is adjusted by adjusting the thickness with the sleeve 70 using one type of sleeve 10. The sleeve 10 can be applied to placing concrete having different thicknesses such as 150 mm, 180 mm, and 210 mm while adjusting and controlling the cost.

  FIG. 17A shows an embodiment of a sleeve structure in which sleeves 70 are stacked under the sleeve 10. Since the lower half is the sleeve 70 containing a non-thermally expandable refractory resin material, the strength of the lower opening of the sleeve body 12 can be increased. The sleeve 70 may include an annular fixture 20.

  FIG. 17B shows an embodiment of a sleeve structure in which sleeves 70 are stacked on the sleeve 10. Since the upper half is the sleeve 70 containing a non-thermally expandable refractory resin material, the strength of the upper opening of the sleeve body 12 can be increased. Optionally, between the sleeve 10 and the sleeve 70, one or a plurality of connecting members 73 formed of metal or the like for fixing the sleeve 10 and the sleeve 70 may be installed. An annular reinforcing member 79 that keeps the shape of the opening circular may be attached to the opening of the sleeve 70 containing a non-thermally expandable fireproof resin material. In this embodiment, the annular reinforcing member 79 includes an annular main body 79a having a size that fits the inner peripheral surface of the sleeve 10, and four annular members 79a extending radially outward through the center of the annular main body 79a. And a reinforcing member 79b composed of a portion.

  The annular reinforcing member 79 may be provided with an opening of the sleeve 70 in the lower half as shown in FIG. 17A, and in this case, the annular reinforcing member 79 may be provided with the mounting portion 24. . The annular reinforcement 79 may be provided on the sleeve 10. By forming the annular reinforcing member 79 in the upper opening or the lower opening of the sleeve 10 and / or the sleeve 70, the strength of the opening can be increased, and damage or deformation during transportation or construction can be prevented. . When the opening is circular, the annular reinforcement can prevent the opening from being deformed into an oval shape. Furthermore, as shown in FIG. 17B, a fixing tool 20 made of a heat-expandable or non-heat-expandable fireproof resin material is extrapolated and attached to the lower end portion of the sleeve 10. The fixture 20 has one or a plurality of (four in the figure) attachment portions 24 similar to those described in FIG. 2, and each attachment portion 24 has a sleeve 10 and a frame 2, a reinforcing bar R, or concrete 3. A hole 26 is provided through which a fixing member such as a metal wire such as a wire, a bolt, a screw, or a nail is passed. Preferably, when the entire fixing device 20 is formed of a hard resin such as hard vinyl chloride, damage or deformation of the sleeve 10 at the time of conveyance or concrete placement can be prevented. Furthermore, the fixture 20 can be burned by heat from a fire.

  Instead of the connection tool 73, as shown in FIG. 17C, the upper sleeve 10 may include a fitting insertion portion 74 having a reduced diameter for fitting into the lower sleeve 70. The outer diameter of the fitting insertion portion 74 of the sleeve 10 is smaller than or substantially the same as the inner diameter of the main body of the sleeve 70. In FIG. 17C, the sleeve 10 and the sleeve 70 may be arranged upside down. Instead, as shown in FIG. 17 (d), the lower sleeve 70 may include a reduced-diameter fitting insertion portion 75 for fitting into the upper sleeve 10. The outer diameter of the fitting insertion portion 75 of the sleeve 70 is smaller than or substantially the same as the inner diameter of the main body of the sleeve 10. In FIG. 17D, the sleeve 10 and the sleeve 70 may be arranged upside down.

  As shown in FIG. 18, the sleeve 10 may be vertically symmetrical in the axial direction. That is, the sleeve 10 is provided with the same number of mounting portions 24 at the same positions on the upper end and the lower end. With such a configuration, it is possible to prevent an operator from using the upper and lower sides of the sleeve 10 by mistake, and the sleeve 10 can be efficiently constructed.

  As shown in FIG. 19, the main body 12 of the sleeve 10 may be provided with a scale 76. The scales may be attached at arbitrary intervals such as 1 mm intervals and 1 cm intervals. The scale 76 may be an arbitrary indication such as a notch, a dent, a convex part, a marker, a seal or the like provided on the main body 12. A numerical value may be further added to the side of the scale 76. Further, instead of the main body 12, a scale 76 may be provided on the rib 12 a extending in the longitudinal direction of the sleeve 10. By providing the scale 76, the height at which the concrete 3 is poured can be confirmed and adjusted.

  In addition, as shown in FIG. 19, a cover material 77 made of paper or the like covering the opening 19 is covered to prevent dust from entering the opening 19 of the sleeve 10 before, during or after the concrete 3 is placed. May be. If the cover material 77 is made of paper, it can be burned and discarded. In this embodiment, the cover member 77 has a substantially circular shape that fits into the opening of the sleeve 10, but may have any shape such as a rectangle or an indefinite shape.

  Instead of the plurality of attachment portions 24 of the sleeve 10, as shown in FIG. 20, a rectangular attachment portion 24 provided at one end of the sleeve 10 may be used as a fixture. By adopting such a configuration, it is easy for the operator to visually confirm the mounting portion 24 and the hole 26, and it is easy to align the fixed portion.

  As shown in FIG. 21, a paper core 78 may be further provided in the opening 19 of the sleeve 10 along the inner peripheral surface of the sleeve main body 12. In this way, by providing the paper core 78 having an annular shape, specifically, a hollow cylindrical shape in the embodiment, deformation of the sleeve 10 (particularly, the sleeve main body 12) at the time of placing the concrete 3 can be prevented. . The core 78 may be collected after the concrete 3 is placed, or may be installed as it is and burned at the time of combustion and disposed of. Further, if the height of the lead 78 is made larger than the height of the sleeve 10, the operator can check whether the lead 78 is installed.

  As shown in FIG. 22, the sleeve 10 (sleeve body 12) may be composed of a plurality of parts 110a to 110d that can be disassembled. In the embodiment shown in FIG. 22, the parts 110a to 110d are four parts having the same shape, and each member is provided with a protruding portion 110e and a slot 110f of the connecting member, and in use, the adjacent parts 110a. The protrusions 110e to 110d and the slots 110f are assembled to assemble. By adopting such a configuration, the sleeve 10 can be compactly stored in the plurality of parts 10a to 10d in a disassembled state while the sleeve 10 is being transported or stored, thus saving space and increasing the efficiency of transport and storage. To do.

  Further, as shown in FIGS. 23A and 23B, the sleeve 10 may be configured to include a bellows portion 82 that can expand and contract along the axial direction thereof. In this example, the sleeve body 12 of the sleeve 10 includes a non-stretchable end portion 80 and a bellows portion 82 adjacent to the non-stretchable end portion 80, and a force is applied to the end portion 80 of the sleeve 10 from the state shown in FIG. Is added, the bellows portion 82 is expanded, and the sleeve 10 can be extended to the state shown in FIG. If the end portion 80 is pushed back in the right direction in the drawing, the sleeve 10 can be contracted, and the total length of the sleeve 10 can be changed according to the desired floor thickness. Further, as shown in FIG. 23 (c), a molded body 84 made of a resin or the like is provided around a part or the whole of the bellows portion 82, which includes a screw portion 83 that fits the outer shape of the bellows portion 82. Then, even after the concrete 3 is cast around the molded body 84, the bellows portion 4 covered with the molded body 84 can still be extended to the state shown in FIG. 3 can be expanded and contracted to change the total length of the sleeve 10 in accordance with the desired floor thickness.

  A reinforcing metal plate or the like may be further applied to at least the outer periphery of the sleeve body 12 of the sleeve 10. By doing so, it is possible to prevent deformation of the sleeve 10 (particularly, the sleeve main body 12) when the concrete 3 is placed, and to reinforce the strength of the sleeve 10 even if the sleeve 10 is thermally expanded in the event of a fire.

  In order to improve the adhesion between the sleeve 10 and the beam or wall formwork, the lower end of the sleeve 10 may be made of a flexible material. Alternatively, an adhesive may be used between the sleeve 10 and the beam or wall formwork. For the same reason, the upper end of the sleeve 10 may be made of a flexible material.

  In order to protect the outer surface of the sleeve 10 from abrasion or chemicals such as an alkaline solution, the sleeve 10 may be coated with a resin such as an olefin resin or a vinyl chloride resin, or a coating material such as a paint. Further, in order to protect the inner surface of the sleeve 10 from damage due to contact with the pipe 5 or the like, the sleeve 10 may be coated with a resin such as an olefin resin or a vinyl chloride resin, or a coating material such as a paint.

  As shown in FIG. 24, in order to reinforce the sleeve 10, an outer cylinder 85 made of a combustible resin such as an olefin resin or a vinyl chloride resin may be provided outside the sleeve 10. In order to reinforce the sleeve 10, an inner cylinder 86 made of a resin such as an olefin resin or a vinyl chloride resin may be provided inside the sleeve 10. The outer cylinder 85 and the inner cylinder 86 may be provided on the sleeve 10 by integral molding, or may be separately formed and then inserted into the sleeve 10. Both the outer cylinder 85 and the inner cylinder 86 may be provided, or only one of them may be provided. The length (height) of the outer cylinder 85 and the inner cylinder 86 is not particularly limited, and may be a part of the length of the sleeve 10 or the same length as the sleeve 10. In addition, it is preferable that the raw material which comprises the outer cylinder 85 and the inner cylinder 86 is a non-expandable and combustible resin. More preferably, the material constituting the outer cylinder 85 and the inner cylinder 86 is a hard resin such as hard vinyl chloride. By providing at least one of the outer cylinder 85 and the inner cylinder 86, the strength of the sleeve 10 is increased, and deformation of the sleeve 10 when the sleeve 10 is conveyed or when the concrete 3 is placed can be prevented or suppressed. In addition, since the outer cylinder 85 and the inner cylinder 86 are made of a resin that burns by heat such as a fire, the outer cylinder 85 and / or the inner cylinder 86 burns by heat such as a fire, so that the expansion of the sleeve 10 is not hindered. But it is advantageous.

  As shown in FIGS. 25 (a) and 25 (b), a sleeve 87 and a sleeve 88 made of a resin such as an olefin resin or a vinyl chloride resin are attached to the upper and lower sides of the sleeve 10 made of a heat-expandable fireproof resin material. May be. The material constituting the sleeves 87 and 88 is preferably a hard resin such as hard vinyl chloride. The length of the sleeve 88 can be adjusted according to the thickness of the floor. The shapes and dimensions of the sleeves 87 and 88 may be the same or different. However, the manufacturing cost of the sleeves 87 and 88 is reduced, and the sleeve 10 and the stacked structure of the sleeve 87 and the sleeve 88 are reduced. Easy to manufacture.

  As shown in FIG. 25 (b), the lower end portion of the sleeve 87 is fitted into the recess portion provided at the upper end portion of the sleeve 10, and the upper end portion of the sleeve 88 is fitted into the recess portion provided at the lower end portion of the sleeve 10. Thus, the sleeves 87 and 88 are attached to the sleeve 10, but the sleeves 87 and 88 may alternatively be attached to the sleeve 10 by other attachment means such as an adhesive. Before passing the pipe 5 or the like through the stack structure, a paper cover material 77 may be put on the upper end of the sleeve 87 so as to cover the opening at the upper end of the sleeve 87. By providing the upper sleeve 87, deformation of the sleeve 10 during conveyance or construction can be prevented. In addition, the paper cover member 77 can prevent dust or dust from entering the sleeve 87 and can also prevent deformation of the opening at the upper end of the sleeve 87. When the pipe 5 or the like is passed through the stack structure, the paper cover 77 is removed, and the cap 30 can be attached to the opening of the upper sleeve 87 after the pipe 5 or the like is inserted into the stack structure.

  Further, if the sleeve 87 is configured so as to be visually distinguishable from the sleeve 10 (for example, by colors such as red, yellow, orange, blue, green, or fluorescence), it can be confirmed that the fire prevention compartment processing has been performed. .

  In the above-described embodiment, assuming that the section through hole 16 has a circular cross section, the embodiment in which the sleeve 10 and the caps 30, 35, 40, 50 are annular members having a circular cross section is shown. The sleeve 10 and the caps 30, 35, 40, and 50 may be formed into an annular member or a cylinder having a substantially elliptical cross section, or an annular member or a cylinder having a rectangular cross section. You may form so.

  In addition to the sleeve 10 and the caps 30, 35, 40, and 50, in order to improve fire resistance, the partition penetrating structure 100 of the present invention includes any known fire resistant filler, fire resistant resin composition, fire resistance. A sheet or a refractory metal plate may be further used.

  In order to further impart antifungal properties, insect repellent properties, heat insulating properties, moisture resistance, etc. to the material constituting the sleeve 10 and / or the caps 30, 35, 40, 50, known fungicides, insect repellents, heat insulating materials are provided. An agent, a moisture-proofing agent, etc. may be blended.

  In the above-described embodiment, the case where the number of the wall bodies 101 forming the partition through-holes 16 is three is shown. However, the number of the wall bodies 101 is not limited to three and may be one or any plural number. be able to.

  The sleeve 10 of the present invention can be applied not only to a floor base but also to a wall base such as a side wall. Further, the caps 30, 35, 40, and 50 of the present invention are also provided on the side wall in order to cover the gap between the inner surface of the partition through hole formed in the side wall and the outer surface of the pipe or wiring passed through the cap. It can be attached to one end of the compartment through hole.

5 Piping,
10,70 sleeve,
16 compartment through holes,
31, 53 Cap opening,
30, 35, 40, 50 caps,
36, 41, 42 halves,
39a, 45a recess,
51a, 51b, 51c, 51d, 51e cylinder part,
90 cap forming member,
100 compartment penetration structure,
101 Floor (wall)

Claims (11)

It is installed at one end of the partition through-hole to cover the gap between the inner surface of the partition through-hole formed in the wall body that partitions the building and the outer surface of the pipe or wiring passed through the partition through-hole. A cap,
The cap has an outer dimension that is a similar enlargement of the design dimension of the outer shape of the partition through-hole by more than twice.
When the cap is installed at one end of the partition through hole, the cap has an opening corresponding to the pipe or wiring.   The cap according to claim 1, which is formed from a material having extensibility.   The said cap is a cap of Claim 1 or 2 installed in the end of the cylindrical sleeve which forms the said division through-hole. The cap has a substantially conical shape whose diameter changes stepwise by extending a small-diameter cylindrical portion to one side of a large-diameter cylindrical portion that is continuously formed in the extended state, From the stretched state, a small-diameter cylindrical portion is in a contracted state by weaving in a nested manner inside the large-diameter cylindrical portion continuous on the other side,
The cylindrical portion having the largest diameter in the cap has an external dimension obtained by enlarging the design dimension of the external shape of the partition through hole by three times or more,
When the said cap is installed in the end of the said division | segmentation through-hole, the said cap has the said opening connected to the cavity which passes the inner side of each said cylinder part, The Claim 1 thru | or 3 cap. The cap is a combination of a pair of halves,
The cap according to any one of claims 1 to 3, wherein each of the halves is formed with a recess that constitutes the opening. A cap forming member used for forming the cap according to claim 1,
The cap-forming member has an external dimension obtained by enlarging the design dimension of the external shape of the partition through-hole by more than twice.
A cap forming member that obtains the cap by forming the opening in the cap forming member. A method of covering a gap between the inner surface of the partition through hole and the outer surface of the pipe or wiring using a cap obtained from the cap forming member according to claim 6,
A first step of passing the piping or wiring through the compartment through hole;
A second step of obtaining the cap by forming the opening in the cap-forming member;
A third step of installing the cap at one end of the partition through-hole so that the pipe or wiring is passed through the opening of the cap;
In the second step, a position and a diameter of the opening formed in the cap forming member are set based on a passage position of the pipe or wiring in the partition through hole and a diameter of the pipe or wiring. In the first step, the piping or wiring is passed through a plurality of the partition through holes,
In the second step, the cap forming member is prepared for each of the partition through-holes, and the cap is obtained for each of the partition through-holes by forming the opening in each of the cap forming members. ,
In the third step, each of the caps is installed at one end of the partition through-hole so that the pipe or wiring is passed through the opening of each of the caps.
In the second step, the position and diameter of the opening formed in each cap forming member is set based on the passage position of the pipe or wiring in each partition through hole, or the diameter of the pipe or wiring. The construction method according to claim 7. A wall in which a partition through hole is formed;
Piping or wiring passed through the compartment through-holes;
A cap according to any one of claims 1 to 5,
The cap is a partition through structure that is installed at one end of the partition through hole so that the pipe or the wiring is passed through the opening. The partition through hole is formed from a cylindrical sleeve containing a thermally expandable refractory resin material,
The compartment penetration structure according to claim 9, wherein the cap is attached to one end of the sleeve. A plurality of the wall bodies are provided,
The piping or the wiring is passed through the partition through holes of the wall bodies,
The cap is prepared for each compartment penetration of each wall body,
11. The partition penetrating structure according to claim 9, wherein each of the caps is installed at one end of the corresponding partition through hole so that the pipe or the wiring is passed through the opening.