JP2003147870A - Joint seal member and joint construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide joint seal members and a joint construction capable of easily giving waterproofness and fire resistance to the joints between the exterior wall members. SOLUTION: At the joint seal member 1 arranged at the joints 3 formed between side end surfaces 40a and 40b of mutually neighboring exterior wall members 4a and 4b, a seal member 10 adhered watertight respectively to the side end surfaces by elastic deformation arranged between side end surfaces 40a and 40b facing each other, and a heat foaming type fire resistant member 2 is provided, which closes between end surfaces 40a and 40b when heated, foamed and expanded, and the heat foamed type fire resistant member 2 is held by the seal member 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint seal material and a joint structure arranged at joints between outer wall materials adjacent to each other.

[0002]

[Background Art] Conventionally, it is common practice to fabricate living rooms and the like that compose a building in a factory as building units, transport these building units to the site, and construct a plurality of building units by combining them horizontally and vertically. The unit type building which was done is constructed. In this unit type building, for example, as described in Japanese Patent Application Laid-Open No. 9-217431, a backup material is provided in a joint between outer wall materials of adjacent building units in the horizontal and vertical directions. The caulking material is filled on the top. In order to impart anti-fire / fireproof performance to these joints, a backup material may be filled with a fireproof material made of rock wool or the like.

[0003]

However, although a refractory material such as rock wool can withstand a high temperature of 600 degrees Celsius, it is easily scattered and it is a difficult task to fill the joints. Further, in the case of waterproofing the joint as described above, the backup material does not have a waterproof function, and therefore the caulking material must be used to completely stop the water, which requires skill. For this reason, a great deal of work is required in order to impart the waterproof property and the fireproof property to the joints between the outer wall materials. An object of the present invention is to provide a joint seal material and a joint structure capable of easily providing waterproofness and fire resistance to joints between outer wall materials.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 discloses, for example, as shown in FIGS. 1 to 9, side end surfaces 40 of outer wall members 4a and 4b adjacent to each other.
In the joint seal material 1 disposed in the joint 3 formed between a and 40b, the joint seal material 1 is disposed between the facing side end surfaces 40a and 40b of the outer wall members 4a and 4b, and elastically deforms to cause the side end surface 40a, The sealing material 10 is watertightly adhered to each of the side surfaces 40b and the side end surfaces 40a and 40b.
The heat-foamable refractory material 2 that closes between a and 40b is provided, and the heat-foamable refractory material 2 is held by the sealing material 10.

Here, the side end surface 4 is elastically deformed.
Sealing material 10 that is watertightly attached to each of 0a and 40b
As the material, a material formed of rubber or a closed cell thermoplastic resin foam or the like is considered, and for example, EPD
In addition to M (ethylene propylene diene rubber), polypropylene foam, polypropylene foam, polyurethane foam and the like can be used. Further, as the heat-foamable refractory material 22, for example, urethane graphite-based resin or the like can be used. However, it is a material that foams and expands when heated to a predetermined temperature or higher to exhibit fire resistance. Anything will do as long as it is available. Further, the sealing material 10 and the heat-foaming refractory material 2 may be integrally formed by integral extrusion molding so that the sealing material 10 holds the heat-foaming fireproof material 2.

According to the first aspect of the present invention, the joint sealing material 1 is elastically deformed so that the outer wall materials 4a and 4b are deformed.
A sealing material 10 that is watertightly adhered to each of the opposing side end surfaces 40a and 40b, and a heat-foaming refractory material 2 that foams and expands when heated to close the side end surfaces 40a and 40b. The heat-foamable refractory material 2 is held by the sealing material 10. Therefore, by simply disposing the joint sealing material 1 on the joint 3 formed between the side end faces 40a, 40b of the outer wall members 4a, 4b adjacent to each other, the joint 3 can be easily provided with the waterproof property and the fireproof property. be able to. For this reason, it is not necessary to separately perform the work for waterproofing and the work for providing the refractory material, and the construction efficiency at the site is improved.

Further, the joint sealing material is provided with a heat-foaming refractory material 2, and the heat-foaming refractory material 2 foams and expands by being heated and closes between the side end surfaces 40a and 40b. , Even if the outer wall members 4a and 4b are deformed by heat and the width of the joint 3 is expanded in a fire or the like,
Since the expansion can follow the width of the joint 3, it is possible to provide fire resistance between the side end surfaces 40a and 40b of the outer wall members 4a and 4b.

The invention according to claim 2 is, for example, as shown in FIG. 7 and FIG. 8, in the joint seal material 1 according to claim 1, the seal material 10 has side faces 40a facing each other,
A hollow portion 12 is formed by a fixing portion 13 fixed to one end surface 40a of one of the 40b and a fixing portion 13 protruding from the fixing portion 13 toward the other end surface 40b.
And the elastically deformable portion 11 that is elastically deformed and has its tip portion watertightly adhered to the other end surface 40b of the facing side end surfaces 40a and 40b to close the space between the side end surfaces 40a and 40b. The heat-foamable refractory material 2 comprises
At least one of the inside of the fixing portion 13 and the inside of the hollow portion 12 is held by the fixing portion 13.

Here, the adhesive layer 15 may be provided on the fixing portion 13 in advance by attaching a double-sided adhesive tape or applying an adhesive. In addition, at this time, it is preferable that a peelable sheet provided so as to be peelable is attached to the adhesive layer 1515 because the construction is easy.

According to the second aspect of the present invention, the same effect as that of the first aspect can be obtained, and the joint seal material 1 is provided with the fixing portion 13, and the fixing portion 13 faces each other. One of the side end faces 40a, 40b is fixed in close contact with one end face 40a. Therefore, when the joint seal material 1 is attached to the joint 3 formed between the side end faces 40a, 40b of the outer wall members 4a, 4b adjacent to each other, the joint seal member 1 is attached to the side end faces 40a, 40b of one outer wall member 4a in advance. Can be kept. Therefore, the joint sealing material 1 is applied to the one end face 40a at the factory stage or on-site.
If the outer walls are provided adjacent to each other after being attached to the other end, the elastically deformable portion 11 is pressed and elastically deformed by the other end face 40b, and the tip end thereof is watertightly adhered to the other end face 40b and the side end face 40a. , 40b can be closed. In addition, the inside of the fixed portion 13 and the hollow portion 12
Since the heat-foamable refractory material 2 is fixed to at least one of the interiors of the above, the joint 3 can be provided with fire resistance performance. In this way, since the joint 3 can be provided with the waterproof performance and the fire resistant performance only by attaching the joint seal material 1 to the one end face 40a, the construction is easy and requires no labor. Further, if the joint seal material 1 is attached in advance at the factory stage, the work of fixing the joint seal material 1 to the one end face 40a can be labor-saving in the field, so that no labor is required.

Further, from the fixed portion 13 to the other end face 40b.
The elastically deformable portion 11 is provided so as to project toward the front, and the fixing portion 13 and the elastically deformable portion 11 form a hollow portion 12. Therefore, as long as the width dimension of the joint width is within a certain range, it is possible to cope with any width.

According to a third aspect of the present invention, for example, as shown in FIG. 9, in the joint seal material 1 according to the first aspect, the seal material 10 has one of the facing side end surfaces 40a, 40b. Fixing part 13 that is fixed in close contact with 40a
And the fixed portion 13 is provided so as to project toward the other side end surface 40b, and the fixed portion 13 forms the hollow portion 12, and the tip portion of the opposite side end surfaces 40a and 40b is elastically deformed. The elastically deforming portion 11 that closes the space between the side end surfaces 40a and 40b by being watertightly attached to the other end surface 40b and the fixing portion 13 are continuous with the fixing portion 13 and the one end surface 40a. A plate-like piece 14 to be fixed is provided, and the heat-foamable refractory material 2 has an inside of the fixing portion 13, a portion of the fixing portion 13 inside the hollow portion 12, an inside of the plate-like piece 14 and the plate. It is characterized in that it is held at least at one place on the surface of the strip 14.

According to the third aspect of the invention, the same effect as that of the first aspect can be obtained, and the joint seal material 1 has the fixing portion 13 and the plate-like piece continuous with the fixing portion 13. 14 is provided, and the fixing portion 13 and the plate-shaped piece 14 are fixed in close contact with one of the facing side end surfaces 40a and 40b. Therefore, since the fixed area where the joint sealing material 1 is fixed to one side end surface 40a of the facing side end surfaces 40a and 40b becomes large, the joint sealing material 1 can be stably and surely attached to the one side end surface 40a. You can Further, at least one of the inside of the fixed portion 13, the portion of the fixed portion 13 inside the hollow portion 12, the inside of the plate-shaped piece 14 and the plate-shaped piece 14 is provided with the heat-foamable refractory material 2. Since it is fixed,
Fire resistance can be imparted to the joint 3. In this way, since the joint 3 can be provided with the waterproof performance and the fire resistant performance only by attaching the joint seal material 1 to the one end face 40a, the construction is easy and requires no labor. Further, if the joint seal material 1 is attached in advance at the factory stage, the work of fixing the joint seal material 1 to the one end face 40a can be labor-saving in the field, so that no labor is required. In addition, in the joint seal material 1,
Since the hollow portion 12 is formed by the fixed portion 13 and the elastically deformable portion 11, the hollow portion 12 is deformed, so that the joint width can be flexibly accommodated.

The invention according to claim 4 is, for example, as shown in FIGS.
As shown in FIG. 3, in the joint seal material 1 according to claim 1, the seal material 10 has the opposite side end surfaces 40 a, 40.
The fixing portion 13 that is fixed to the one end face 40a of b in close contact with it, and the fixing portion 13 that is provided so as to project toward the other end face 40b form the hollow portion 12 together with the fixing portion 13. A plurality of elastically deforming portions 11 that elastically deform so that the tip ends are watertightly adhered to the other end surface 40b of the facing side end surfaces 40a, 40b to close the side end surfaces 40a, 40b. The elastic deformation portion 11 of
The heat-foamable refractory material 2 is provided on the fixing portion 13 at regular intervals so as to be evenly arranged. It is characterized in that it is held at at least one of the portions of the fixed portion 13 between the portions 11.

According to the invention as set forth in claim 4, not only the same effect as in claim 1 can be obtained, but the joint seal material 1 is provided in a plurality at equal intervals. Since the elastically deforming portions 11 are provided and the tip end portions of the elastically deforming portions 11 are watertightly adhered to the other end surface 40b and close the space between the side end surfaces 40a and 40b, the joint 3 is more waterproof. can do. That is, for example, if two elastically deforming portions 11 are provided in the fixing portion 13 at a predetermined interval, the joint 3 can be provided with a primary water stop and a secondary water stop structure. The waterproof property of 3 can be made stronger. Further, since the plurality of elastically deformable portions 11 are provided in the fixed portion 13 so as to be evenly arranged at a predetermined interval, the joint sealing material 1 is attached to the one end face 4 thereof.
It is possible to dispose the plurality of elastic deformation portions 11 between the side end surfaces 40a and 40b with only one time of closely fixing and fixing them to 0a. In addition, inside the fixed portion 13, the hollow portion 1
Since the heat-foamable refractory material 2 is fixed to at least one position of the fixing portion 13 inside the second and the fixing portion 13 position between the plurality of elastic deformation portions 11, the joint 3 has a fire resistance performance. Can be granted.

In this way, by simply attaching the joint sealing material 1 to the one end face 40a, stronger joint waterproofing and fireproofing can be imparted to the joint 3, and the construction is easy and requires no labor. Further, if the joint seal material 1 is attached in advance at the factory stage, the work of fixing the joint seal material 1 to the one end face 40a can be labor-saving in the field, so that no labor is required.

The invention according to claim 5 is, for example, as shown in FIG. 7B, the outer wall material 4a in which the joint seal materials 1 according to claims 2 to 4 (see FIGS. 7 to 9) are adjacent to each other. Four
In the joint structure provided on the joint 3 formed between the side end faces 40a, 40b of the b, the fixing portion 13 of the sealing material 10 is closely attached to one of the facing side end faces 40a, 40b. The elastically deformable portion 11 is elastically deformed so that the tip ends thereof face the opposite side end surfaces 40a, 40b.
It is characterized in that it is watertightly adhered to the other end face 40b.

According to the fifth aspect of the present invention, the fixing portion 13 of the sealing material 10 is fixed in close contact with one of the opposing side end surfaces 40a and 40b, and the elastically deformable portion 11 is fixed. It is elastically deformed so that its tip is on the other end face 40.
Since it is watertightly attached to b, the fixing portion 13 of the sealing material 10 may be attached and fixed to the one end face 40a in order to provide the joint 3 with a waterproof property, which does not take time and effort. Further, since the sealing material 10 holds the heat-foaming type refractory material 2 that foams and expands when heated and closes the space between the side end surfaces 40a and 40b, the joint 3
Fire resistance can be imparted to.

According to a sixth aspect of the present invention, for example, as shown in FIGS. 1 to 4, the joint sealing material 1 according to the fourth aspect is formed between the side end surfaces 40a and 40b of the outer wall members 4a and 4b adjacent to each other. In the joint structure provided in the joints 3 formed, the joints 3 are filled with the caulking material 5, the joint sealing material 1 is arranged in the back of the caulking material 5, and the sealing material 10 is fixed. The part 13 has side faces 40a facing each other,
The plurality of elastically deformable portions 11 are elastically deformed and their tips are watertight to the other side end surface 40b of the facing side end surfaces 40a and 40b. It is in close contact with.

According to the sixth aspect of the present invention, the fixing portion 13 of the seal material 10 is fixed in close contact with one of the facing side end surfaces 40a and 40b, and the plurality of elastically deformable portions are provided. Since each of 11 is elastically deformed and its tip end is in watertight contact with the other end face 40b, the joint 3 can have stronger waterproof performance. In addition, as described above, the plurality of elastically deformable portions 11 have the fixing portions
Since they are evenly arranged at predetermined intervals,
The fixing portion 13 can be attached to the joint 3 simply by bringing the fixing portion 13 into close contact with the one end surface 40a and fixing it, and it does not take much labor. Further, since the sealing material 10 holds the heat-foaming type refractory material 2 that expands when heated and expands to close the space between the side end surfaces 40a and 40b, the joint 3 is provided with fire resistance performance. be able to.

Further, since the joint 3 is filled with the caulking material 5 and the joint sealing material 1 is disposed in the back of the caulking material 5, the joint sealing material 1 is the joint 3
It is not exposed on the surface of the, and the appearance of the outer wall can be finished excellently. Further, conventionally, the backup material 7 was required when the caulking material 5 was provided on the joint 3, but since the elastically deformable portion 11 can be used as the backup material 7, it is troublesome to provide the backup material 7. It is possible to save labor and reduce cost.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> FIG.
The joint seal material 1 and the joint structure in which the joint seal material 1 is arranged according to the first embodiment of the present invention will be described in detail with reference to FIGS. In the present embodiment, the dry joint sealing material 1 is arranged on the joint 3 formed between the outer wall materials 4a and 4b which are provided adjacent to each other in the building having the steel frame structure and constructed by the unit construction method. It will be described as a thing.

According to the unit construction method, the box-shaped building units formed by joining the steel frame columns and beams are arranged adjacent to each other in the frontage direction and the depth direction of the site, and the building units are also arranged above the building units. Is a method of constructing a building by arranging and stacking and building a roof unit on top of the building unit on the top floor. Also, P
The ALC plate is a lightweight concrete plate that has been previously integrally formed and cured by high-temperature and high-pressure steam, and is added to the slurry mainly composed of silicic acid-based and calcareous-based raw materials by adding bubbles of a specific gravity, and after molding and primary curing, it is subjected to high-temperature and high-pressure curing. It is obtained by hydrothermally reacting with water, and is manufactured in advance at the factory and brought to the site.

As shown in FIGS. 3 and 4, this PAL
A plurality of C plates are attached to the PALC plate retainer 6 attached to the beam and the column at a predetermined interval so that the side end surfaces 40a of the outer wall members 4a and 4b adjacent to each other,
The joint 3 is formed between 40b.

The joint sealing material 1 is a long member along the extending direction of the joint 3, and as shown in FIGS. 1, 2 and 5, elastically deforms the outer wall members 4a, 4b to each other. A sealing material 10 that is watertightly adhered to each of the opposing side end surfaces 40a and 40b, and a heat-foaming refractory material made of a urethane graphite-based resin that foams and expands when heated to close the side end surfaces 40a and 40b. 2 and. The sealing material 10 is made of a foamed material of EPDM (ethylene propylene diene rubber),
One end surface 4 of the opposite end surfaces 40a, 40b of b
0a, and the fixing portion 13 fixed to the other end surface 40b of the other end surface 40a, 40b which is provided by projecting from the fixing portion 13 toward the other end surface 40b and elastically deformed. The side end face 40 by being watertightly adhered
It is provided with two elastically deformable portions 11 that close between a and 40b.

The fixing portion 13 is formed in a long plate shape along the extending direction of the joint 3, and the fixing portion 13 is provided with an adhesive layer 15 made of a double-sided butyl tape. The sealing material 10 is fixed to the one end face 40a by the adhesive layer 15. It should be noted that one side of this double-sided butyl tape is attached to the joint seal material 1 in advance, and a release sheet (not shown) is provided on the other side of the joint seal material 1. The release sheet can be peeled off and easily attached when attached to one of the end faces 40a. Also,
The elastically deforming portions 11 are provided on both ends of the fixing portion 13, that is, on the front side and the back side of the joint 3.

These two elastically deforming portions 11 are formed on the other end face 40b so as to draw an arch from the fixing portion 13, respectively.
The hollow portion 12 is formed by projecting to the side and by the fixing portion 13. The hollow portion 12 is provided so as to extend in the longitudinal direction of the fixed portion 13. Also, FIG. 1, FIG. 2 and FIG.
As shown in FIG. 3, the fitting groove 1 is notched in the central portion of the fixed portion 13 sandwiched between the two elastically deformable portions 11.
3a is formed, and the heat-foamable refractory material 2 is fixed in the fitting groove 13a.

The joint structure of the first embodiment in which the joint seal material 1 having the above-mentioned structure is arranged is as follows (see FIGS. 1 to 4). As shown in FIGS. 1, 2 and 4, the caulking material 5 is filled in the joint 3 formed between the side end surfaces 40a and 40b of the outer wall materials 4a and 4b provided adjacent to each other. Inside the caulking material 5, the joint sealing material 1 is arranged as follows. First, the fixing portion 13 is provided with the opposing side end surfaces 40a, 4
The adhesive layer 15 is brought into contact with the one end face 40a of 0b to be closely attached and fixed. The tips of the two elastically deforming portions 11 provided at both ends of the fixing portion 13 are pressed against the other side end surface 40b to elastically deform the deforming portion (see FIGS. 1 and 2), and the other side end surface 40b. It is watertightly adhered to. Then, the fitting groove 13 provided in the fixing portion 13
The heat-foamable refractory material 2 is fixed to a. When heat is applied to the outer wall materials 4a and 4b in the event of a fire, the heat-foamable refractory material 2 foams and expands as shown in FIG. 2, and is filled between the side end surfaces 40a and 40b so that the joint 3 is filled. Block.

The following procedure is followed to construct the joint structure configured as described above. The joint sealing material 1 is preliminarily attached to the one end face 40a of the outer wall material 4a, 4b by removing the release sheet provided on the adhesive layer 15 so that the joint sheet 1 can be peeled off, and is fixed by adhesion. Then, the outer wall members 4a and 4b are fixed to the PALC plate retainers 6 provided on the columns and beams of the assembled unit. At this time, the other outer wall members 4a and 4b are attached so that the elastically deformable portion 11 is pressed against the other end face 40b. Then, the caulking material 5 is filled on the joint sealing material 1.

According to the present embodiment, the joint seal material 1 is elastically deformed to seal water-tightly to the facing side end surfaces 40a and 40b of the outer wall materials 4a and 4b, respectively. The heat-foamable refractory material 2 includes a heat-foamable refractory material 2 that foams and expands when heated and closes between the side end surfaces 40 a and 40 b. The heat-foamable refractory material 2 is held by the sealing material 10. Therefore, the joint sealing material 1 is attached to the side end surfaces 40 of the outer wall materials 4a and 4b adjacent to each other.
Only by disposing the joint 3 formed between the a and 40b, it is possible to easily impart the waterproofness and the fireproof performance to the joint 3. Therefore, it is not necessary to separately perform the work for waterproofing and the work for providing the refractory material, and the construction efficiency on site is improved. Further, a heat-foamable refractory material 2 is provided as a refractory material. The heat-foamable refractory material 2 foams and expands by being heated and closes between the side end surfaces 40a and 40b, so that in the event of a fire or the like. Outer wall materials 4a, 4 due to heat
Even if b is deformed and the width of the joint 3 is widened, it can be expanded following the width of the joint 3, so that the fire resistance performance is increased between the side end surfaces 40a, 40b of the outer wall members 4a, 4b. Can be given.

Further, the joint seal material 1 of the present embodiment is provided with two elastically deforming portions 11, and the tips of the elastically deforming portions 11 are watertightly adhered to the other side end surface 40b, so that the side end surfaces 40a, 40b. Since the space is closed, the joint 3 can be made more waterproof. Further, the elastically deformable portions 11 are fixed to both ends of the fixing portion 13, respectively, and the primary water stoppage and the secondary water stoppage of the joint 3 can be achieved only by closely fixing the joint seal material 1 to the one end face 40a. Water can be done.

In this way, by simply attaching the joint sealant 1 to the one end face 40a, the joint 3 can be provided with a stronger waterproof performance having a primary waterproof and secondary waterproof structure and at the same time fire resistance. Because it can be held,
Easy to install and hassle free. Also, the joint seal material 1
Since it may be installed in advance at the factory stage,
At the site, the outer wall materials 4a and 4b are spaced apart from each other by a predetermined distance to form the PA.
It suffices to fill the caulking material 5 after attaching it to the LC plate retainer 6 and deforming the tip of the elastically deformable portion 11 so that the side end surfaces 40a and 40b come into close contact with each other in a watertight manner. Therefore, the work of fixing the joint sealing material 1 to the one end face 40a can be labor-saving, and thus does not take much labor.

Further, from the fixed portion 13 to the other end face 40b.
Since the elastically deformable portion 11 is provided so as to project toward the front and the fixing portion 13 and the elastically deformable portion 11 form a hollow portion 12, the width dimension of the joint width is within a certain range. Any width can be accommodated as long as it is within.

Further, in the joint structure of the present embodiment, since the joint seal material 1 is disposed deep inside the caulking material 5, the joint seal material 1 is not exposed on the surface of the joint 3. , The exterior of the outer wall can be finished beautifully. Further, in the conventional case, the caulking material 5 is attached to the joint 3.
The backup material 7 was required when installing the
Since the elastically deformable portion 11 can be used as the backup material 7, the labor for providing the backup material 7 can be saved and the cost can be reduced.

The present invention is not limited to the first embodiment, and it is needless to say that appropriate modifications can be made without departing from the gist of the invention. For example, in the first embodiment, the heat-foamable refractory material 2 is fixed to the fitting groove 13a provided in the fixing portion 13, but the present invention is not limited to this, and FIG. As shown, the hollow portion 1 formed by the elastically deformable portion 11 and the fixed portion 13.
It may be provided at the portion of the fixed portion 13 inside the second hollow portion 2, or may be provided at the portion of the fixed portion 13 inside the one hollow portion 12. Further, in the present embodiment, the elastically deformable portions 11 are provided at both ends of the fixed portion 13, respectively, but the present invention is not limited to this. Fixed part 1
It is also possible to provide two or more elastically deforming portions 11 in 3 uniformly arranged at predetermined intervals.

The structure is not limited to a steel frame structure or a building constructed by a unit construction method, and the outer wall members 4a and 4b are not limited to PALC plates.
Further, although the urethane graphite-based resin is used as the heat-foamable refractory material 2, it is not limited to this, and foams and expands by being heated so that the side end surfaces 40a and 40b are closed. Any refractory material will do. The sealing material 10 and the heat-foamable refractory material 2 are
It may be integrally obtained by integral extrusion molding, or may be separately formed and the heat-foamable refractory material 2 may be fixed to the sealing material 10.

<Second Embodiment> Next, a joint seal material 1 according to a second embodiment and a joint structure in which the joint seal material 1 is provided will be described with reference to FIGS. 7 and 8. .
The difference from the first embodiment is that, in the first embodiment, the joint seal material 1 is provided with two elastically deformable portions 11, whereas the joint seal material of the second embodiment is different. 1
In A, one elastically deformable portion 11 is provided for the fixed portion 13. In the joint structure, a backup material 7 is provided at the back of the caulking material 5, and a predetermined space is provided between the backup material 7 and the backup material 7. The point is that the joint sealing material 1A is provided separately. Therefore, the difference will be described in detail below, and the same components as those in the first embodiment will be designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 7, the joint sealing material 1A according to the second embodiment has a fixing portion 13 which is fixed in close contact with one of the facing side end surfaces 40a, 40b.
And the fixed portion 13 is provided so as to project toward the other side end surface 40b, and the fixed portion 13 forms the hollow portion 12, and the tip portion of the opposite side end surfaces 40a and 40b is elastically deformed. The heat-foamable refractory material 2 is provided with the elastic deformation portion 11 that closes the space between the side end surfaces 40a and 40b by being water-tightly adhered to the other end surface 40b. It is fixed to the site.

An adhesive layer 15 made of a double-sided butyl tape is provided on the fixing portion 13, and the fixing portion 13 is in close contact with and fixed to the one end face 40a by the adhesive layer 15. In addition, a release sheet provided so as to be removable is provided in advance on the adhesive layer 15.

The joint sealing material 1A is arranged on the joint 3 as follows to form a joint structure of the second form. First, the fixing portion 13 is provided with the outer wall members 4a and 4b.
One end face 40 of the opposite side end faces 40a, 40b of the
The adhesive layer 15 is closely attached to and fixed to a. Then, the elastically deformable portion 11 is elastically deformed and its tip portion is watertightly adhered to the other side end surface 40b of the facing side end surfaces 40a and 40b, whereby the side end surface 40 is formed.
The space between a and 40b is closed. As described above, the backup material 7 is provided on the joint sealing material 1A at a predetermined interval from the joint sealing material 1A, and both side ends 40a and 40b of the outer wall materials 4a and 4b and the backup material 7 are provided. A space surrounded by the joint sealing material 1A is formed. Then, the caulking material 5 is placed on the backup material 7.
Are filled to form the joint structure of the second embodiment.

Next, the following procedure is performed to obtain the above-mentioned joint structure. The joint sealing material 1A is preliminarily attached to the one end face 40a of the outer wall material 4a, 4b by removing the release sheet provided on the adhesive layer 15 so that the joint sheet 1 can be peeled. The outer wall members 4a and 4b are fixed to the PALC plate retainer 6 on the pillars or beams of the assembled unit. At this time, the other outer wall members 4a and 4b are attached so that the elastically deformable portion 11 is pressed against the other end face 40b. Next, the backup material 7 is fitted into the formed joint 3 at a predetermined interval from the joint sealing material 1A. Then, the caulking material 5 is filled from above the backup material 7 to close the joint 3.

According to the second embodiment, the joint sealing material 1A has the fixing portion 13 at the one end face 4 of the outer wall material 4a, 4b.
If the outer walls are provided adjacent to each other, the elastically deformable portion 11 is pressed and elastically deformed by the other side end surface 40b, and its tip is watertightly adhered to the other side end surface 40b. , 40b can be closed. In addition, the fixing portion 13 located inside the hollow portion 12
Since the heat-foamable refractory material 2 is fixed to the
Fire resistance can be imparted to. In addition, simply by attaching the joint sealing material 1A to the one end face 40a,
Since the joint 3 can be provided with the waterproof performance and the fire resistant performance, the construction is easy and does not take time. Further, if the joint sealing material 1A is attached in advance at the factory stage, the work of fixing the joint sealing material 1A to the one side end surface 40a can be labor-saving in the field, so that it does not take time and effort.

Further, from the fixing portion 13 to the other end face 40b
The elastically deformable portion 11 is provided so as to project toward the front, and the fixing portion 13 and the elastically deformable portion 11 form a hollow portion 12. Therefore, as long as the width dimension of the joint width is within a certain range, it is possible to cope with any width. Further, between the joint seal material 1A and the backup material 7, both end surfaces 4 of the outer wall materials 4a and 4b are provided.
Since the space between 0a and 40b is provided, the internal pressure in this space can be made equal to the external pressure, and even if the caulking material is cut off for some reason, the water will be affected by the pressure difference. It is possible to prevent intrusion into the inside.

The present invention is not limited to the above-mentioned second embodiment, and it goes without saying that it can be appropriately modified without departing from the gist of the present invention. For example, as shown in (a) and (b) of FIG.
May be provided so as to contact the one end face 40a of the fixing portion 13. Further, for example, (a) to FIG.
As shown in (d), the fixing portion 13 of the sealing material 10
In addition, a plate-like piece 14 that is continuous with the fixing portion 13 and that is fixed to the one end face 40a in close contact with the fixing portion 13 may be provided. By doing so, the fixing area where the joint sealing material 1 is fixed to one end surface 40a of the facing side end surfaces 40a and 40b is widened, so that the joint sealing material 1 can be stably attached.
Further, in this case, the heat-foamable refractory material 2 is attached to the fixing portion 1
3, the portion of the fixed portion 13 inside the hollow portion 12,
It may be fixed to the inside of the plate-shaped piece 14 and at least one place of the plate-shaped piece 14.

[0045]

According to the first aspect of the present invention, the joint sealing material is elastically deformed and heated with the sealing material which is watertightly adhered to each of the opposite side end surfaces of the outer wall material. The heat-foamable refractory material is foamed and expanded to close the space between the side end faces, and the heat-foamable refractory material is held by the sealing material. Therefore, only by disposing the joint sealing material at joints formed between the side end surfaces of the outer wall members adjacent to each other, it is possible to easily impart the waterproof property and the fire resistant property to the joints. Therefore, it is not necessary to separately perform the work for waterproofing and the work for providing the refractory material, and the construction efficiency on site is improved. Further, as a refractory material, a heat-foamable refractory material is provided.When the heat-foamable refractory material is heated, it foams and expands to close the space between the side end faces. Even if it is deformed and the joint width widens,
Since the expansion can follow the width of the joint, it is possible to provide fire resistance between the side end surfaces of the outer wall material.

According to the second aspect of the present invention, the same effect as that of the first aspect can be obtained, and the joint sealing material is provided with the fixing portion, and the fixing portion has the opposite side end faces. It is fixed in close contact with one of the end faces. Therefore, when the joint sealing material is attached to the joint formed between the side end surfaces of the outer wall materials adjacent to each other, it can be attached in advance to the side end surface of one outer wall material. Therefore, after the joint sealing material is attached to the one end face at the factory stage or on site, if the outer walls are provided adjacent to each other, the elastically deformable portion is pressed by the other end face and elastically deforms, and the tip end portion thereof is provided. Can be watertightly adhered to the other end face to close the space between the side end faces. Further, since the heat-foamable refractory material is fixed to at least one of the inside of the fixed portion and the inside of the hollow portion, it is possible to give fire resistance to the joint. In this way, the joint can be provided with the waterproof performance and the fireproof performance only by attaching the joint sealing material to the one end face, so that the construction is easy and requires no labor. Further, if the joint sealing material is attached in advance at the factory stage, the work of fixing the joint sealing material to the one end face can be saved at the site, which is not troublesome.

The elastically deformable portion is provided so as to project from the fixed portion toward the other end surface, and the fixed portion and the elastically deformable portion form a hollow portion.
Therefore, as long as the width dimension of the joint width is within a certain range, it is possible to cope with any width.

According to the third aspect of the invention, the same effect as that of the first aspect can be obtained, and in addition, the joint sealing material is provided with a fixing portion and a plate-like piece continuous with the fixing portion. The fixing portion and the plate-shaped piece are fixed in close contact with one of the opposite side end surfaces. Therefore, the fixing area for fixing the joint sealing material to one end surface of the facing side end surfaces is widened, so that the joint sealing material can be stably attached. Further, since the heat-foamable refractory material is fixed to at least one of the fixing portion inside, the fixing portion portion inside the hollow portion, the inside of the plate-like piece and the plate-like piece, Fire resistance can be imparted. In this way, the joint can be provided with the waterproof performance and the fireproof performance only by attaching the joint sealing material to the one end face, so that the construction is easy and requires no labor. Further, if the joint sealing material is attached in advance at the factory stage, the work of fixing the joint sealing material to the one end face can be saved at the site, which is not troublesome. In addition, since the hollow portion is formed in the joint sealing material by the fixed portion and the elastically deformable portion, it is possible to flexibly cope with the joint width by deforming the hollow portion.

According to the invention as set forth in claim 4, not only the same effect as in claim 1 can be obtained, but also the joint seal material is provided with a plurality of elastically deforming portions, and each elastically deforming portion is provided. Since the tip end portion of the end face is watertightly adhered to the other end face and closes the space between the side end faces, the joint can be more waterproof. Further, since the elastically deforming portions are provided in the fixing portion so as to be evenly arranged at predetermined intervals, a plurality of elastically deforming portions can be formed by only one time of fixing the joint seal material by closely adhering to the one end face. Can be disposed between the side end faces. Further, since the heat-foamable refractory material is fixed to at least one of the fixing portion inside, the fixing portion portion inside the hollow portion 12 and the fixing portion between the plurality of elastically deformable portions, the joint is fire resistant. Performance can be imparted.

In this way, by simply attaching the joint sealing material to the one end face, stronger joint waterproofing and fireproofing can be imparted to the joint, and the construction is easy and requires no labor. Further, if the joint sealing material is attached in advance at the factory stage, the work of fixing the joint sealing material to the one end face can be saved at the site, which is not troublesome.

According to the fifth aspect of the present invention, the fixing portion of the sealing material is fixed in close contact with one of the facing side end surfaces, and the elastically deforming portion is elastically deformed and the tip portion thereof. Since it is watertightly adhered to the other end face, it does not take time and effort because the fixing portion of the sealing material may be adhered and fixed to the one end face in order to provide waterproofness to the joint. Further, since the sealing material holds a heat-foaming refractory material that foams and expands when heated and closes the space between the side end surfaces, it is possible to impart fire resistance to the joint.

According to the sixth aspect of the invention, the fixing portion of the sealing material is fixed in close contact with one of the opposing side end surfaces, and the plurality of elastically deforming portions are elastically deformed respectively. Since the tip portion thereof is watertightly adhered to the other end surface, the joint can have a stronger waterproofing performance. In addition, since the plurality of elastically deforming portions are arranged in the fixing portion uniformly at a predetermined interval,
Since it suffices to fix the fixing portion in close contact with the one end face, it does not take time. Further, since the sealing material holds a heat-foaming refractory material that foams and expands when heated and closes the space between the side end surfaces, it is possible to impart fire resistance to the joint. Further, since the joint is filled with a caulking material, and the joint sealing material is disposed in the back of the caulking material, the joint sealing material is not exposed on the surface of the joint, and the appearance of the outer wall is improved. It can be finished beautifully. Further, in the past, a backup material was required when the caulking material was provided on the joint, but since the elastically deformable portion can be used as the backup material, the labor of providing the backup material can be saved. At the same time, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing a joint structure and a joint sealing material according to a first embodiment of the present invention.

FIG. 2 is a plan sectional view showing an example of a state in which the thermal foaming type refractory material is foamed and filled in the joint in FIG.

FIG. 3 is a front view showing a joint structure according to the first embodiment of the present invention.

FIG. 4 is a side view showing a joint structure according to the first embodiment of the present invention.

FIG. 5 is a plan sectional view showing a joint sealing material according to the first embodiment of the present invention.

FIG. 6 is a plan sectional view showing a modified example of the joint sealing material according to the first embodiment of the present invention.

FIG. 7A is a plan sectional view showing a joint sealing material according to a second embodiment of the present invention, and FIG. 7B is a plan sectional view showing a joint structure.

FIG. 8 is a plan sectional view showing a modified example of the second embodiment of the present invention.

FIG. 9 is a plan sectional view showing a modified example of the second embodiment of the present invention.

[Explanation of symbols]

1, 1A joint sealant 11 Seal material 12 Hollow part 13 Fixed part 14 Plate-shaped pieces 2 Thermal foaming type fireproof material 3 joints 4a, 4b outer wall material 40a One end surface (of outer wall material) 40b The other end face (of the outer wall material) 5 caulking materials 7 backup material

Claims (6)

[Claims] 1. A joint sealing material disposed at joints formed between side end surfaces of adjacent outer wall members, wherein the joint member is disposed between the opposite side end surfaces of the outer wall member and elastically deforms to cause the side end surface to move. A sealing material that is watertightly adhered to each of them, and a thermal foaming type refractory material that is disposed between the side end surfaces, foams and expands by being heated, and closes between the side end surfaces. A joint sealant, wherein the sealant is held by the sealant. 2. The joint sealing material according to claim 1, wherein the sealing material is closely fixed to one end face of the facing side end faces, and is fixed to the other end face. It is provided by protruding,
A hollow portion is formed with the fixing portion, and an elastically deforming portion that elastically deforms to close the space between the side end faces by water-tightly adhering the tip end to the other end face of the facing side end faces is provided. The joint sealing material, wherein the heat-foamable refractory material is held in the fixing portion at least at one of the inside of the fixing portion and the inside of the hollow portion. 3. The joint seal material according to claim 1, wherein the seal material is a fixing portion that is fixed in close contact with one of the facing side end surfaces, and a fixing portion that faces the other end surface from the fixing portion. Is provided so as to project, and forms a hollow portion with the fixing portion, and is elastically deformed so that the tip portion is watertightly adhered to the other side end surface of the facing side end surfaces to close the space between the side end surfaces. An elastically deforming portion and a plate-like piece that is continuous with the fixing portion and is fixed to the one end face in close contact with the fixing portion are provided, and the thermo-foam-type refractory material is inside the fixing portion and the hollow portion. A joint sealing material, which is held at least at one of an inner fixed portion portion, an inside of the plate-shaped piece, and a surface of the plate-shaped piece. 4. The joint sealing material according to claim 1, wherein the sealing material is fixed to a side end face of one of the facing side faces and is fixed in close contact with the side face. It is provided by protruding,
A plurality of elastic deformation portions that form a hollow portion with the fixing portion and that elastically deform and the tip portion is watertightly adhered to the other end surface of the facing side end surfaces to close between the side end surfaces. The plurality of elastically deformable portions are evenly arranged on the fixed portion at a predetermined interval, and the heat-foamable refractory material includes the fixed portion inside, the fixed portion inside the hollow portion, and the plurality of elastic portions. A joint seal material, characterized in that the joint seal material is held at at least one of fixed portions between deformed portions. 5. A joint structure in which the joint sealing material according to claim 2 is disposed in joints formed between side end surfaces of adjacent outer wall materials, and fixing portions of the sealing material face each other. One of the side end faces is closely fixed to the one end face, and the elastically deformable portion is elastically deformed so that the tip end is watertightly adhered to the other end face of the facing side end faces. Joint structure. 6. A joint structure in which the joint seal material according to claim 4 is disposed in joints formed between side end surfaces of adjacent outer wall members, wherein the joints are filled with caulking material, The joint sealing material is disposed in the back of the caulking material, the fixing portion of the sealing material is closely attached and fixed to one of the facing side end surfaces, and each of the plurality of elastic deformation portions is elastically deformed. The joint structure is characterized in that the tip portion is watertightly adhered to the other end face of the opposing side end faces.