JP3701352B2 - Thermal insulation panel and thermal insulation structure using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat insulating panel used for a roof, a ceiling, a wall, a floor and the like in various buildings such as a wooden house, a reinforced concrete structure, and a steel frame structure, and a heat insulating structure using the heat insulating panel.
[0002]
[Technical background]
2. Description of the Related Art Conventionally, for example, as a heat insulation structure of a wall of a wooden house, a structure in which glass wool is filled in a wall between studs is known. Although this heat insulation structure has advantages such as low cost of glass wool and low construction cost and simple construction, it has the following drawbacks.
[0003]
That is, the glass wool contains the condensed water due to the temperature difference between the inside and the outside of the building, and the weight of the condensed water may compress the glass wool downward to generate a space above the wall. In an extreme case, the glass wool that was filled in the entire wall at the beginning of construction fell down to near the lower half of the wall over a long period of time, and there was a hollow part without glass wool in the upper half of the wall. It will occur.
In such a case, naturally, the heat insulating performance of the wall body is remarkably deteriorated, and there arises a problem that the generation of internal condensed water in the wall body is promoted. Usually, unless the wall surface is peeled off, the situation where the glass wool is crushed by its own weight and a space is generated in the upper part of the wall body cannot be visually observed.
[0004]
Furthermore, if dew condensation water remains in the interior, the wooden frame tends to rot, and there is a problem that moisture accumulated in the glass wool oozes out to the wall surface on the indoor side or mold occurs on the wall surface.
[0005]
The situation is the same when glass wool is filled not only on the wall but also on the roof, ceiling, floor, etc., and the thickness of the glass wool decreases due to the generation of condensed water, and the heat insulation performance decreases. In addition, there is a problem that moisture accumulated in the glass wool oozes out on the indoor ceiling or floor, and mold is generated.
[0006]
In recent years, heat insulation panels with synthetic resin foam as the main body have become widespread, and heat insulation panels in which face materials such as paperboard are laminated on both sides of the panel main body have been developed as a means to eliminate the disadvantages of the heat insulation structure filled with glass wool. ing.
When this type of conventional heat insulating panel is used, it cannot be attached when the panel is inserted between the shaft members of the wall body, or a gap is easily formed between the pillars and the studs. This is due to variations in the dimensional accuracy of the shaft member. Even if the heat insulating panel is cut to match the distance between the shaft members (distance between the opposing surfaces of adjacent shaft members), a gap of about 3 to 4 mm is provided between the shaft members. Is often open. Since this gap causes a decrease in heat insulation performance, it is currently closed by in-situ foaming of urethane foam and filling treatment with caulking material. For this reason, the construction takes a great deal of labor, and an increase in construction cost is inevitable.
[0007]
Therefore, as shown in FIG. 9, both sides of the heat insulation panel 23 are cut obliquely to form an end portion in a tapered shape (this cut end surface is indicated by 24 and the end portion is indicated by 25), and the end portion 25 is formed. , 25 is crushed, and a heat insulating structure in which the elastic member can be inserted between the shaft members 26 without a gap is also known. However, in this heat insulating structure, no face material is formed on the cut surfaces 24, 24 on both sides of the heat insulating panel 23, and an open space 27 is formed between the cut surface 24 and the shaft member 26. For this reason, there exists a problem that heat insulation performance falls in the edge parts 25 and 25 vicinity, and sufficient heat insulation performance cannot be anticipated.
[0008]
OBJECT OF THE INVENTION
An object of this invention is to provide the heat insulation panel and heat insulation structure which can exhibit sufficient heat insulation performance, although it can be easily inserted between shaft members.
[0009]
SUMMARY OF THE INVENTION
In order to achieve the above object, the heat insulating panel of the present invention is a heat insulating panel in which a panel body is made of a synthetic resin foam and flexible face materials are laminated on both sides thereof, and at least one side of the panel body. When the panel material is protruded from the edge of the panel body, the surface material projecting portion made of the foam and the surface material formed by cutting the panel body into a U-shaped cross section is projected, and the surface material is projected when inserted between the shaft members. The portion is closely attached to the inner surface of the shaft member in a curved or bent state .
Furthermore, you may form the fitting groove for a face material protrusion part to bend at a substantially right angle at the edge part of the panel main body at least.
[0010]
In addition, the heat insulation structure of the present invention is formed in a rectangular shape as a whole, and the above-mentioned heat insulation panel in which the double-sided material protrusions protrude from the edge portions on both sides of the panel body is inserted between a pair of shaft members. The width of the panel body is equal to or less than the interval between the shaft members, and the width of the projection of the face material is equal to or greater than the interval between the shaft members.
[0011]
The heat insulation panel of the present invention is used to insulate the roof, ceiling, wall surface, floor, etc. of various buildings such as wooden houses, reinforced concrete structures, steel structures, etc. And the like, thereby creating the heat insulation structure of the present invention.
[0012]
Usually, there is a slight variation in the distance between the two shaft members (that is, the distance between the opposing surfaces of both shaft members). As for the heat insulation panel of this invention, a face material protrusion part protrudes from each end surface of the both sides of a panel main body. This protrusion is bent when the heat insulation panel is inserted between the shaft members. As a result, the variation in dimension between the shaft members is absorbed, and the shaft members are inserted into the shaft members in a stable state by being pressed against the inner surfaces of the shaft members without any gaps. By inserting the heat insulation panel, a closed heat insulation space is formed between each pair of face material projections, and the end face of the panel body (synthetic resin foam) is not exposed, so high heat insulation performance is guaranteed. The
[0013]
In addition , although it can also comprise by the raw material different from the part other than the said protrusion part and protrusion part of a face material (for example, a thing with high elasticity is used for a protrusion part) , a face material is a panel main body for convenience of manufacture. It is preferable that the protrusions and the portions other than the protrusions of the face material are made of the same continuous material.
[0014]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 2 (as viewed from the direction of arrow f in FIG. 1), the heat insulating panel 1 shown in FIG. 1 as a whole has face members 3 and 4 on both sides of a panel body 2 made of synthetic resin foam. A pair of flexible face materials which are attached in a substantially rectangular shape and project on the left and right sides by a predetermined amount outward from both edges of the end faces 5 and 6 and extend in the longitudinal direction along both sides. Protrusions 7 and 8 are formed.
[0015]
The panel body 2 can be formed from an appropriate foam material such as rigid urethane foam, polystyrene foam, polyethylene foam, phenol foam, vinyl chloride foam, etc., but in this embodiment, rigid urethane foam is adopted as a general material. are doing.
[0016]
Further, as the face materials 3 and 4, in this embodiment, kraft paper, core paper or the like is used as a base material, and metal foil such as aluminum foil is laminated or metal vapor deposited on this, but polyethylene is used. It may be a laminate of plastic films such as films and polyester films, or may be a laminate of these plastic films alone or a combination of a plurality of plastic films.
[0017]
In addition, the heat insulation panel 1 can be manufactured by various methods .
In this example, a panel in which a face material having the same size as that of the foam is laminated on both sides of a rigid urethane foam, and the end faces on both the left and right sides of the foam are notched in a U-shaped cross section so that the face material protrudes. The parts 7 and 8 are formed, and the heat insulation panel 1 is manufactured.
[0018]
Next, the Example (when constructing the floor heat insulation structure of a wooden house) of the heat insulation structure of this invention using the above heat insulation panel 1 is demonstrated.
As shown in FIG. 3, the floor heat insulating structure is constructed by inserting the heat insulating panel 1 between the shaft members of the joists 10 and 10 on the large pull 9. In this case, since the joists 10 are often warped, the distance between the opposed surfaces of the joists 10 and 10 into which the heat insulating panel 1 is inserted varies due to warpage and construction errors.
[0019]
For example, when the distance between the opposed surfaces of the joists 10, 10 is set to 303 mm or 405 mm, it is said that the variation is generally 3 to 4 mm.
Specifically, when the distance between opposed surfaces of joists at a predetermined interval was measured at 70 locations, the average value was 263.3 mm, the maximum value was 266.0 mm, the minimum value was 261.0 mm, and the standard deviation was 1.05 mm. When the standard deviation was tripled, it was found that the variation in the distance between the opposed surfaces of the joists was within ± 3.15 mm with a probability of 99.7%.
[0020]
With reference to the actual measurement results, the distance between the facing surfaces of the joists 10 and 10 is A, the dimension between the end surfaces 5 and 6 of the panel body 2 of the heat insulating panel 1 is B, and the projecting length of the face material projecting portions 7 and 8 is C. When the thickness of the face material projections 7 and 8 is D, the dimension B between the end surfaces 5 and 6 of the panel body 2 in the heat insulating panel 1 and the face material projections 7 and 8 are satisfied so as to satisfy the following two expressions. Projecting length C and thickness D of the face material projecting portions 7 and 8 are set.
[0021]
[Expression 1]
B + 2D ≦ A ≦ B + 2C (1)
C−D ≧ 3 mm (2)
[0022]
When the heat insulation panel 1 with the dimensions B, C, D set in this way is inserted between the shaft members of the joists 10, 10 on the large pull 9, the distance A between the opposed surfaces of the joists 10, 10 is larger than (B + 2D). In a portion smaller than (B + 2C), an insertion state as shown in FIG. 4 is obtained. That is, the pair of face material projections 7 and 8 formed on both sides of the heat insulating panel 1 are curved by their flexibility and are elastically adhered to the inner surfaces of the joists 10 and 10, and thus the heat insulating panel. 1 is inserted between the shaft members of joists 10 and 10 without a gap. And in this mounting state, the heat insulation space 11 is formed between each pair of face material protrusion parts 7 and 8, respectively.
[0023]
Further, in the portion where the distance A between the facing surfaces of the joists 10 and 10 is large and substantially equal to (B + 2C), as shown in FIG. 5, the pair of face material protrusions 7 and 8 extend in a substantially linear shape. The tip part is elastically adhered between the joists 10,10. Also in this case, the heat insulating panel 1 is inserted between the shaft members of the joists 10 and 10 without a gap, and a heat insulating space 11 is formed between each pair of face material protrusions 7 and 8.
[0024]
Further, in the portion where the distance A between the facing surfaces of the joists 10 and 10 is narrow and substantially equal to (B + 2D), as shown in FIG. 6, the pair of face material protrusions 7 and 8 are side surfaces in a state of being bent at a substantially right angle. Is elastically adhered between the joists 10,10. Also in this case, the heat insulation panel 1 is inserted between the shaft members of the joists 10 and 10 without a gap, and a small heat insulation space 11 is formed between each pair of face material projections 7 and 8.
[0025]
In addition, as shown to FIG. 7 (A), the fitting groove | channel which the thing of the one side of each pair of surface material protrusion parts 7 and 8 bends at a substantially right angle, and is inserted in the end surfaces 5 and 6 of the right-and-left both sides of the heat insulation panel 1. 12 is formed, the face material protrusions 7 and 8 of the heat insulating panel 1 are in close contact with the inner surface of the joist 10 and are substantially flush with the end surfaces 5 and 6 as shown in FIG. Can be bent at right angles. In this case, the distance A between the opposed surfaces of the joists 10 and 10 can also correspond to a portion that is substantially equal to the dimension B between the end surfaces 5 and 6 of the panel body 2. In addition, as shown in FIG. 8, the end surfaces 5 and 6 on both the left and right sides of the heat insulating panel 1 can be tapered.
[0026]
Here, when examining the thermal conductivity of the floor thermal insulation structure constructed as described above, the thermal conductivity of the joist 10 made of wood is 0.1 kcal / mh ° C., and the thermal insulation panel 1 made of rigid urethane foam. The panel body 2 has a thermal conductivity of 0.018 to 0.021 kcal / mh ° C., and the thermal conductivity of the heat insulating space 11 between the face member projections 7 and 8 of the heat insulating panel 1 is 0.021 kcal / mh ° C. It can be seen that the heat insulation panel 1 of this example exhibits sufficient heat insulation performance without causing heat insulation defects.
[0027]
The heat insulation panel 1 is applicable not only to the floor but also to the heat insulation structure of the roof, ceiling, and wall, and is inserted between the shaft members of the roof portion, ceiling portion, and wall surface portion without any gaps, and has excellent heat insulation performance. Demonstrate.
[0028]
In addition, in the heat insulation panel 1 demonstrated above, although the thickness D of each pair of face material protrusion part 7 and 8 was made the same, the thickness D of the face material protrusion part by the side of the face material 3 is set to the face material by the side of the face material 4. You may provide a difference in the thickness D, such as making it larger than the thickness D of the protrusion. Further, the protrusion length C of the face material protrusion on the face material 4 side may be made larger than the protrusion length C of the face material protrusion on the face material 3 side.
[0029]
【The invention's effect】
As described above, according to the present invention, since the face material protrusion is provided on the heat insulating panel inserted between the shaft members, the distance between the opposed surfaces between the shaft members to which the heat insulating panel is inserted is slightly increased. Even if there is variation, each pair of face material protrusions absorbs the variation and adheres between the shaft members. Therefore, the heat insulation panel can be easily inserted between the shaft members without any gap.
In addition, in the inserted state between the shaft members, a closed heat insulating space is formed between each pair of face member protrusions, so that a sufficient heat insulating performance can be exhibited without causing a heat insulating defect. .
[Brief description of the drawings]
FIG. 1 is a perspective view of a heat insulation panel according to an embodiment of the present invention.
FIG. 2 is a view of the heat insulation panel as viewed from the direction of arrow f in FIG.
FIG. 3 is an explanatory sectional view showing a construction preparation state of the heat insulating structure of the present invention.
FIG. 4 is a diagram showing a construction completion state of the heat insulating structure of the present invention in a portion where the distance between the opposed surfaces of the joists is somewhat narrow.
FIG. 5 is a diagram showing a construction completion state of the heat insulating structure of the present invention at a portion where the distance between the opposed surfaces of the joists is wide.
6 is a diagram showing a construction completion state of the heat insulating structure of the present invention in a portion where the distance between the opposed surfaces of joists is narrower than in the case of FIG. 4;
FIG. 7A is an enlarged cross-sectional view of a main part of a heat insulating panel according to another embodiment of the present invention, FIG. 7B shows a completed state of the heat insulating structure of the present invention using the heat insulating panel of FIG. It is a principal part expanded sectional view in the part where the distance between opposed surfaces of joists is still narrower.
FIG. 8 is an enlarged cross-sectional view of a main part of another heat insulating panel used in the same manner as FIG. 7 (A).
FIG. 9 is an explanatory cross-sectional view showing a heat insulation construction completion state of a heat insulation panel according to a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Heat insulation panel 2 Panel main body 3, 4 Face material 5, 6 End surface 7, 8 Face material protrusion part 9 Large pull 10 joist 11 Heat insulation space 12 Fitting groove

Claims (3)

In the heat insulation panel in which the panel body is made of synthetic resin foam, and the face material having flexibility is laminated on both sides thereof,
A surface material protrusion made of the foam and the face material formed by cutting the panel main body into a U-shaped cross section is projected from at least one side edge of the panel main body, and inserted between the shaft members. In this case, the heat insulating panel is characterized in that the face member protruding portion is in close contact with the inner surface of the shaft member in a curved or bent state .   The heat insulation panel according to claim 1, further comprising a fitting groove for bending the face material protrusion at a substantially right angle at an edge of at least one side of the panel body. The heat insulation panel according to claim 1 or 2, wherein the whole has a square shape, and the double-sided material protrusions protrude from both side edges of the panel body, and is configured to be inserted between a pair of shaft members.
The heat insulation structure, wherein the width of the panel body is equal to or less than the interval between the shaft members, and the width of the projecting protrusion is equal to or greater than the interval between the shaft members.

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