JP2000352128A - Building panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a building panel which is high in adhesiveness of a sheet body to a thermal insulating material and excellent in fire resistance efficiency, by arranging the panel in a framework of a wooden building, allowing the sheet body to include a foam thermal insulating material, and allowing the thermal insulating material to contain a flame-retardant material. SOLUTION: A wall panel 11 is comprised of a sheet body 12 forming an external surface, which is formed of a medium-density fiberboard obtained by hardening crushed vegetable fibers. The sheet body 12 is arranged in a framework 13 of a wooden house, and upper and lower edges of the sheet body 12 are fixed to horizontal frames 15 forming the framework 13, while right and left edges of the same are fixed to columns 14. On the indoor side of the sheet body 12, a thermal insulating material 20 which is one size smaller in external dimension than the sheet body 12 is fitted in a setting space formed in the framework 13' on a side of' a stud 17 surface. When the wall panel 11 is fitted in the setting space, the indoor side of the thermal insulating material 20 is flush with the columns 14 and the horizontal frames 15. The thermal insulating material 20 is formed of expanded polystyrene containing a flame- retardant material formed of a halogen compound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building panel.

[0002]

2. Description of the Related Art For example, in the case of a wooden house wall in which an interior material and an exterior material are attached to a frame, a heat insulating function is provided in a space formed by the interior material and the exterior material for the purpose of improving heat insulation. It is common practice to place building panels. In this building panel, a foamed heat insulating material is bonded to a wooden plate-like body with an adhesive.

[0003]

However, the prior art building panels have a problem in that while being excellent in weight reduction, they are poor in fire resistance. There is also a problem that the adhesiveness between the heat insulating material and the plate-like body is poor.

[0004] The present invention has been made in view of the above problems, and a first object of the present invention is to provide a building panel having excellent fire resistance. A second object is to provide an architectural panel having high adhesion between a plate-like body and a heat insulating material.

[0005]

In order to solve the above problems, according to the first aspect of the present invention, there is provided a building which is arranged between a frame of a wooden house and has a plate-like body provided with a foaming heat insulating material. The gist of the panel is that a flame retardant is contained in the heat insulating material.

In the invention according to claim 2, in the construction panel according to claim 1, the gist is that the heat insulating material is polystyrene. According to a third aspect of the present invention, in the building panel according to the first or second aspect, the gist is that the flame retardant is a halogenated phosphoric ester.

Hereinafter, the "action" of the present invention will be described. According to the first aspect of the present invention, since the flame retardant is contained in the heat insulating material, the fire resistance of the heat insulating material is improved.

According to the second aspect of the present invention, since the heat insulating material is polystyrene, the adhesiveness of the heat insulating material to the plate-like body is enhanced. According to the third aspect of the invention, since the flame retardant is a halogenated phosphoric acid ester, compatibility with the polystyrene resin is increased.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the building panel of the present invention is embodied as a wall panel for a wooden house will be described below with reference to the drawings.

FIG. 1 is a front view of a wall panel 11 viewed from the indoor side of a wooden house. FIG. 2 shows a plan sectional view of the wall panel 11. FIG. 10 shows a rear view of the wall panel 11 viewed from the outdoor side of the wooden house. As shown in FIGS. 1 and 2, the wall panel 11 includes a plate-shaped body 12 constituting an outer surface thereof, and the plate-shaped body 12 is formed of a medium fiberboard (MDF: medium).
density fiberboard). This medium fiber board is obtained by hardening crushed vegetable fiber (hemp fiber, bamboo fiber, coconut fiber, or the like).

As shown in FIG. 10, the plate 12 is provided on a frame 13 of a wooden house. Both upper and lower edges of the plate-shaped body 12 are fixed to a horizontal member 15 such as a beam or a base which constitutes the frame 13. The left and right edges of the plate 12 are fixed to the pillar 14. A nailing marking 16 is written on the outdoor side surface S11 of the plate-like body 12 along the periphery thereof. This marking 16 for nailing
It is composed of a plurality of points 16a. Each point 16a has a circular shape with a diameter of about 5 mm, and is all printed. Each point 16a is equally spaced on the same straight line (about 8 in this embodiment).
0-100 mm).

As shown in FIGS. 1 and 2, one wooden stud 17 extending along the longitudinal direction of the panel is joined to the center of the indoor side surface S12 of the plate-like body 12. FIG. 3 (c)
As shown in the figure, the stud 17 is made of a laminated material having a rectangular cross section. The glued laminated wood is formed by bonding a plurality of plate materials 18 which are overlapped with each other with an adhesive. The respective plate members 18 are stacked along a direction parallel to the plate-like body 12. The reason why the plate-shaped body 12 is MDF is that the plate-shaped body 12 can be mass-produced economically with dimensional accuracy. Further, the strength per unit weight (specific strength) of the plate-like body 12 is about three times that of reinforced concrete, and it is excellent in fire resistance and has semi-permanent durability. Further, there is almost no expansion or contraction or dimensional deviation.

A heat insulating material 20 having an outer diameter slightly smaller than that of the plate-shaped body 12 is provided on the side surface of the stud 17 on the indoor side surface S12 of the plate-shaped body 12. The heat insulating material 20
In other words, it is partitioned by one stud 17. Insulation material 2
0 plays a main part when the wall panel 11 exhibits a heat insulating effect. The heat insulating material 20 is fitted in the installation space K formed in the frame 13. In a state where the wall panel 11 is simply fitted into the installation space K, the indoor side surface S2 of the heat insulating material 20 is arranged on the same plane as the pillar 14 and the horizontal member 15.

As the material of the heat insulating material 20, foamable polystyrene is used. The reason for choosing polystyrene is as follows. This is because polystyrene has fine and independent pores (discontinuous pores) inside and causes moderate plastic deformation when pressed.

The polystyrene, which is the raw material of the heat insulating material 20, contains a flame retardant. In this embodiment, a halogen compound is used as the flame retardant. This is to enhance the adhesiveness between the plate-shaped body 12 and the heat insulating material 20.
Examples of the halogen-based compound include halogenated phosphoric acid esters and ethane tetrabromide. Among them, examples of the halogenated phosphoric acid ester include dibromopropyl phosphate and bromochloropropyl phosphate. In this embodiment, as a commercially available halogenated phosphate ester,
There is "Leofram PB-370" (brominated phosphate ester) manufactured by Ajinomoto. Incidentally, an acrylic resin is used as the adhesive. The amount of flame retardant is 2
% By weight to 30% by weight. More preferably, the amount of the flame retardant is 5% by weight to 10% by weight of the polystyrene.

Further, the expansion ratio of the heat insulating material 20 is 30 to 7
It is set to 0 times. The reason for setting the magnification in this range is as follows. That is, if the expansion ratio is lower than 30 times,
Since the number of bubbles contained in the heat insulating material 20 is reduced, a large amount of polystyrene as a material is required. Therefore, the material cost of the heat insulating material 20 increases. On the other hand, if the expansion ratio is higher than 70 times, the thermal conductivity increases, the heat insulating property decreases, and the strength of the entire heat insulating material 20 decreases. In addition,
The expansion ratio of the heat insulating material 20 is more preferably 35 to 65 times.

As shown in FIGS. 1, 4 and 6, each heat insulating material 20 is composed of two upper components 21a and 21b and two lower components 22a and 22b, each of which is divided into upper and lower parts.
It is composed of Each upper component 21 facing each other
a, 21b and the respective lower component parts 22a, 22b are joined to each other. Each upper component 21a, 21b;
Contact surfaces 24, 25 with each lower component 22a, 22b
Are located in the middle part of each heat insulating material 20 in the vertical direction.

As shown in FIGS. 8 (a) and 8 (b), the contact surfaces 24, 2 of the respective components 21a, 21a, 22a, 22b
5 are formed stepwise so as to overlap each other. In the present embodiment, the contact surfaces 24 and 25 have two steps. The upper and lower contact surfaces 24 and 25 are formed with parallel portions 24a and 25a parallel to the indoor side surface S12 of the plate-like body 12. In addition, two vertical portions 24b and 25b are formed on the upper and lower contact surfaces 24 and 25 at locations located at both ends of the parallel portions 24a and 25a. Each vertical part 24
b and 25b are perpendicular to the indoor side surface S12 of the plate-shaped body 12. The lengths of the vertical portions 24b and 25b facing each other in the vertical direction are equal to each other.

As shown in FIGS. 1 to 3, first notches 27 are provided at both ends of the indoor side surface S 2 of the heat insulating material 20.
One is recessed. At the center of the indoor side surface S <b> 2 in the heat insulating material 20, two second notches 28 are formed so as to sandwich the stud 17. The notches 27 and 28 are spaces for passing electric wiring used for electric equipment of a wooden house. Each notch 27, 28 extends in the up-down direction and is parallel to each other. In the present embodiment, the depths of the notches 27 and 28 (D1, D1 shown in FIG. 2)
D2) is 35 mm. Both notches 27, 2
The depth of 8 is more preferably 60 mm to 80 mm.

The first notch 27 is formed in a part of the portion where each heat insulating material 20 contacts the column 14. That is, the first notch 27 is formed along the longitudinal direction of the stud 17 except for the upper and lower ends of the heat insulating material 20. On the other hand, the second notch 28 is formed in a part of the portion where each heat insulating material 20 contacts the stud 17. That is, the second notch 28 is formed along the longitudinal direction of the stud 17 except for the upper and lower ends of the heat insulating material 20. The second notch 28 is set to the same length as the first notch 27.

In the heat insulating material 20, portions other than the first and second cutout portions 27 and 28 are thicker portions. In this thick portion, a grip portion 29 is formed in a region between the first cut portion 27 and the second cut portion 28. The width of the grip portion 29 is set to a length that can be gripped by an operator. Specifically, the width (W shown in FIG. 2) of the grip portion 29 is set to 13 cm to 17 cm. The width W of the gripper 29 is 13 cm to 15
cm is more preferable.

As shown in FIG. 1, FIG. 2 and FIG.
Pillows 31, 32 are formed at both upper and lower ends of the zero. The pillow portions 31 and 32 are thicker than the first and second cutout portions 27 and 28. Upper pillow part 3
1 and the lower pillow portion 32 have different vertical lengths. That is, the lower pillow portion 32 is lower than the upper pillow portion 31.
Is shorter in the vertical direction. Specifically, the length of the lower pillow portion with respect to the upper pillow portion is set to 2/3 or less. In the present embodiment, the length of the upper pillow portion 31 in the vertical direction is (L1 shown in FIG. 1) 24 cm to 30 c.
m, the length of the lower pillow part 32 (L2 shown in FIG. 1) is 12
cm to 21 cm. Preferably, the upper pillow 31 is 23 cm to 27 cm, and the lower pillow 32 is 13 cm.
It is better to set it to cm to 16 cm.

As shown in FIGS. 1 and 7, the upper pillow portion 3
A marking 33 for construction adjustment is provided on one indoor side surface. The construction adjustment marking 33 is formed in a V-shaped cross section. The construction adjustment marking 33 is linear and extends along the width direction (lateral direction) of each heat insulating material 20. The construction adjustment markings 33 are arranged at predetermined intervals in the vertical direction at a plurality of and at equal intervals. In this embodiment, the interval (I shown in FIG. 7) between each of the construction adjustment markings 33 is set to 3 cm. It is more preferable to set the interval between the construction adjustment markings 33 to 3 cm to 6 cm.

The outdoor side surface S1 of the heat insulating material 20 is bonded to the indoor side surface S12 of the plate-like body 12 with an adhesive.
The outer edge of the heat insulating material 20 is a non-adhesion region (a portion other than the hatched portion in FIG. 9) R1, and a portion excluding the non-adhesion region R1 is an adhesion region (a portion indicated by a hatched portion in FIG.
It is 2. The non-bonding region R <b> 1 has a rectangular shape along the outer peripheral edge of the heat insulating material 20. Then, the bonding region R2
Is surrounded by the non-adhesion region R1. The construction adjustment marking 33 corresponds to the upper end of the non-adhesion region R1. In the present embodiment, the non-adhesion region R
1 has a width of 22 cm to 25 cm (W1 shown in FIG. 9).
cm. The width of the other portion (W2 shown in FIG. 9) is set to 4 cm to 8 cm.

As shown in FIG. 2 and FIG.
The dimension of the stud 17 in the direction orthogonal to 2 is the first
And the thickness of the heat insulating material 20 excluding the second cutout portions 27 and 28 is smaller than the thickness. In other words, the thickness of the heat insulating material 20 is larger than that of the stud 17. Specifically, the indoor side surface S2 of the heat insulating material 20 is 3
mm to 10 mm (B shown in FIG. 3C). This is because if the heat insulating material 20 and the stud 17 are at the same level, the heat insulating material 20 contracts and becomes unstable when a plurality of wall panels 11 are stacked.

As shown in FIGS. 1 to 4, the upper and lower end surfaces S3 and S4 and the left and right end surfaces S5 and S6 of the heat insulating material 20 are each composed of a vertical surface 35 and a pair of inclined surfaces 36 and 37. I have. Each of the surfaces 35 to 37 is formed along the outer peripheral edge of the heat insulating material 20. Each vertical surface 35 is orthogonal to the indoor side surface S12 of the plate-shaped body 12, and is located at a substantially central portion of the end surfaces S5 and S6 of the heat insulating material 20. Slope 3
6, 37 are formed at both ends of the vertical surface 35.

As shown in FIGS. 3 (a) and 3 (b), in the end surfaces S4 to S6 of the heat insulating material 20, a portion corresponding to the vertical surface 35 is outwardly formed due to the presence of the pair of inclined surfaces 36 and 37. Overhanging. Thereby, at both left and right end surfaces S5 and S6 of each heat insulating material 20, the first cutout portions 27 are formed.
A bulged portion 38 having a trapezoidal cross section is formed in a portion excluding. The bulging portion 38 is formed at substantially the center of the thickness of the heat insulating material 20. The bulge 38 extends along the outer peripheral edge of the heat insulating material 20. Further, the bulging portion 38 is made of the same material as the heat insulating material 20 and is formed integrally with the heat insulating material 20. Therefore, the bulging part 3
8 is elastically deformable.

As shown in FIG. 3B, the indoor inclined surface 36 and the outdoor inclined surface 37 are formed at the corners of the heat insulating material 20. And both inclined surfaces 3 with respect to the vertical surface 35
6 and 37, the inclination angles θ1 and θ2 are different, and the inclination angle θ1 of the indoor-side inclined surface 36 is larger than the inclination angle θ2 of the outdoor-side inclined surface 37. Specifically, the inclination angle θ of the indoor-side inclined surface 36 with respect to the vertical surface 35
1 is set to 30 ° to 60 °. It is more preferable that the inclination angle θ1 be 40 ° to 50 °. or,
The inclination angle θ2 of the outdoor-side inclined surface 37 with respect to the vertical surface 35
Is set to 5 ° to 25 °. This inclination angle θ2
Is more preferably set to 10 ° to 15 °.

As shown in FIG. 3C, the studs 17 of the upper and lower components 21a, 21b, 22a, 22b
The inclined surfaces 41a and 41b are formed at the locations in contact with. In the present embodiment, the inclination angle θ3 of each of the inclined surfaces 41a and 41b with respect to the side surface of the stud 17 is set to 5 ° to 25 °. This inclination angle θ3 is 10 ° to 15 °.
゜ is more preferable. And the inclined surface 41
a, 41b, a part of the stud 17 and a part of the plate-shaped body 12 in a space (hollow portion, hollow portion) 42
a and 42b are formed. In short, the voids 42a,
42b is formed by notching a part of the heat insulating material 20. Each of the gaps 42 a and 42 b is located near the plate-shaped body 12. Each of the gaps 42a and 42b is
Extend along the longitudinal direction of.

Next, a method of constructing the wall panel 11 of the present embodiment will be described. FIG. 5 shows a state before the wall panel 11 is assembled to the shaft set 13, and FIG. 6 shows a state where the wall panel 11 is assembled to the shaft set 13. As shown in the figure, the heat insulating material 20 of the wall panel 11 is fitted into the installation space K formed in the frame 13. The mounting of the wall panel 11 fitted as described above is performed by driving a nail (not shown) or the like to the nailing marking 16. After attaching the wall panel 11, the interior material (see FIG. 6) 43 of the wooden house is attached to the pillar 14. Then, the exterior member 44 is attached to the frame 13 so that the plate-shaped body 12 cannot be seen from the outside of the wooden house.

Therefore, according to this embodiment, the following effects can be obtained. (1) Since the flame retardant is contained in the heat insulating material 20, the fire resistance of the heat insulating material 20 can be improved. Moreover, since the heat insulating material 20 is made of expandable polystyrene, the manufacturing cost of the wall panel 11 can be reduced and the weight can be reduced.

(2) The flame retardant contained in the heat insulating material 20 is as follows:
It is a halogenated compound, that is, a halogenated phosphoric acid ester. Therefore, the adhesiveness of the heat insulating material 20 to the plate-shaped body 12 can be increased.

The embodiment of the present invention may be modified as follows. The material for forming the heat insulating material 20 may be changed to a gypsum board, a pulp cement board, or an expandable polyurethane in addition to polystyrene. Further, the heat insulating material 20 can be, for example, a phenol resin, a silicone resin, a urea resin, or the like. Of course, these can be used in any combination.

In the above embodiment, the building panel is embodied as the wall panel 11. Alternatively, the present invention may be embodied as a floor panel, a field panel, or a ceiling panel. In the above embodiment, the wall panel 11 is embodied as the wall panel 11 having the stud 17. In addition, as shown in FIG. 11, the stud 17 and the second notch 28 are omitted,
The central portion of the heat insulating material 20 may be formed flat.
In the case where the stud 17 is provided on the shaft set 13, FIG.
The configuration shown in FIG. That is, when the wall panel 11 is attached to the frame 13, the studs 17
May be formed.

In the above embodiment, the parallel portions 24a, 2a
5a, two vertical portions 24b, 2
5b was formed. In addition to the vertical portions 24b and 25b,
An inclined portion inclined at a predetermined angle with respect to each of the parallel portions 24a and 25a may be formed on each of the upper and lower contact surfaces 24 and 25.

Next, in addition to the technical ideas described in the claims, technical ideas grasped by the above-described embodiment will be enumerated below. (1) The wall panel according to claim 2, wherein the amount of the flame retardant is 2% to 30% by weight of the polystyrene.

(2) In Claim 3, the amount of the halogenated phosphoric acid ester is from 5% by weight to 10% by weight of the polystyrene.
Wall panels that are wt%. (3) In any one of claims 1 to 3, and (1) and (2), the building panel is a wall panel, a floor panel, a field panel, or a floor panel.

[0038]

As described above, according to the first aspect of the present invention, the heat resistance of the heat insulating material can be improved.

According to the second and third aspects of the present invention, the adhesiveness of the heat insulating material to the plate can be increased.

[Brief description of the drawings]

FIG. 1 is a front view in which a wall panel is assembled to a shaft assembly in one embodiment.

FIG. 2 is a sectional view taken along line 2-2 in FIG.

FIG. 3A is a sectional view taken along line 3a-3a in FIG. 1;
FIG. 1B is a cross-sectional view taken along the line 3b-3b in FIG. 1, and FIG.
3c-3c sectional view in FIG.

FIG. 4 is an exploded perspective view showing a shaft assembly and a wall panel.

FIG. 5 is a cross-sectional view before a wall panel is assembled to a shaft assembly.

FIG. 6 is a cross-sectional view after the wall panel is assembled to the shaft assembly.

FIG. 7 is a sectional view showing an upper pillow part.

8A is an exploded front view showing an upper component member and a lower component member, and FIG. 8B is a side view of FIG.

FIG. 9 is a front view showing only a wall panel.

FIG. 10 is a rear view of the wall panel.

FIG. 11 is a front view showing a wall panel in which a stud is omitted in another embodiment.

FIG. 12 is a front view showing a different type of wall panel from FIG. 11;

[Explanation of symbols]

 Reference numeral 13 denotes a frame, 12 denotes a plate, and 20 denotes a heat insulating material.

Continuation of the front page (72) Inventor Yasuhiro Asano 5-1-1, Nittacho, Takahama-shi, Aichi Prefecture Biden Co., Ltd. Inside Kinuura Plant (72) Inventor Toshihiro Nomura 5-1-1, Nittacho, Takahama-shi, Aichi Prefecture F-term in Biden Kinuura Plant (Reference) 2E001 DD01 DE01 EA09 FA03 FA09 FA10 FA11 FA14 FA16 GA45 HC01 HC11 HF11 HF12 JC03 JC08 LA16 2E002 FB07 FB16 HA02 HB01 MA34 MA38

Claims (3)

[Claims] 1. An architectural panel which is arranged between a frame of a wooden house and has a plate-shaped body provided with a foamable heat insulating material, wherein a flame retardant is contained in the heat insulating material. panel. 2. The building panel according to claim 1, wherein the heat insulating material is polystyrene. 3. The building panel according to claim 1, wherein the flame retardant is a halogenated phosphoric acid ester.