JPH1072897A - Thermal insulating panel intended for steel house and mounting structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to prevent the generation of dew condensation on the indoor side end and rust on a structural body by thermally insulating the head of a screw member, such as a drilling tapping screw. SOLUTION: A thermal insulating panel intended for a steel house is formed by joining an external wall face material 12 with one end of a foaming resin- made core material and an external wall face material 13 with the other side respectively. A penetration area 15 capable of inserting a screw member 2 of a drilling and tapping screw or the like is board in the exterior wall face material 12 and the core material 11 in a series where the mounting structure intended for a steel house is designed to lay out an thermal insulating panel 10 which joins the internal wall face material 13, the foaming resin-made core material 11 and the external wall face material 12 with the outside of a structural body made of steel plate or the like one by another and inserts the screw member 2 of the drilling and tapping screw or the like inserted from the penetration section 14 board in the external wall face material 12 and the core material 10 in a series into the structural body 1 and fits a foaming resin-made cap member 3 in the penetration section 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel used for walls, floors, roofs and the like of a steel house and a mounting structure thereof.

[0002]

2. Description of the Related Art In recent years, the number of steel house starts has increased significantly, mainly in North America, as houses that meet the needs of environmental protection, shortening of construction period, and reduction of construction cost.
This steel house has a 2 × 4 lumbar with a thickness of 1
This method replaces structural members formed from galvanized steel sheets of up to 2 mm. It is possible to promote panelization of walls, roofs, etc. because there is little deviation in dimensions. It has a feature that it can be simply fixed to a structural member with a screw or a screw having a notched cutting edge, thereby simplifying the construction. By employing a so-called heat-insulating panel having heat-insulating properties as the panel, a highly airtight and highly heat-insulated house can be obtained.

As such a heat insulating panel for a steel house, there is known a heat insulating panel formed by joining an outer wall side member 52 and an inner wall side member 53 made of plywood to both sides of a foamed resin core member 51 as shown in FIG. I have. To attach the heat insulating panel, the drilling tapping screw 54 is attached to the outer wall side member 5.
2. It is performed by screwing into the structural member 55 through the core member 51 and the inner wall side member 53.

[0004]

However, in the prior art described above, the core material and the like exhibit heat insulating properties, but the drilling tapping screw 54 penetrating therethrough functions as a heat bridge due to its good thermal conductivity. However, in cold weather, dew condensation occurs near the indoor side end 54b of the drilling tapping screw 54 cooled from the outdoor end 54a by the outside air, thereby causing a problem that the structural member 55 rusts.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks. It is an object of the present invention to insulate the head of a screw member such as a drilling tapping screw from the outside air by using foamed resin. While taking advantage of the features such as simple construction and realization of a high airtight and highly insulated house, the screw member is not cooled to prevent dew condensation on the indoor side end and rust on the structural member. An object of the present invention is to provide a heat insulating panel and a mounting structure therefor.

[0006]

In order to achieve the above object, a heat insulating panel for a steel house according to the first aspect of the present invention has an outer wall side member joined to one side of a foamed resin core member and an inner wall side member to the other side. In this case, a series of penetrating portions through which a screw member such as a drilling tapping screw can be inserted is provided in the outer wall side surface material and the core material. The screw member here includes a member having a general-purpose screw such as a screw screw, a self-drilling screw, and a self-tapping screw, in addition to the drilling tapping screw. Therefore, this screw member is a concept including all screws having screws and screws and the like.

In this heat insulating panel, a screw member is inserted from a penetrating portion, and the screw member is penetrated through the inner wall side member and screwed into a structural member, whereby the heat insulating panel is attached to the structural member. If the through-hole is filled or filled with a foamed resin, the foamed resin insulates the screw member from the outside air, so that dew condensation does not occur near the indoor end of the screw member.

According to a second aspect of the present invention, at least one of the outer wall side member and the inner wall side member is a plywood.

In the heat insulating panel, the plywood exhibits a high level of in-plane rigidity, elastic limit strength, long-term allowable strength, short-term allowable strength, maximum strength and deformation capacity.

According to a third aspect of the present invention, there is provided a heat insulating panel mounting structure for a steel house, wherein a heat insulating panel formed by sequentially joining an inner wall side material, a foamed resin core material, and an outer wall side material outside a structural member made of a steel plate or the like. A screw member, such as a drilling tapping screw, inserted from a penetrating portion formed in the outer wall side member and the core member in a series is penetrated through the inner wall side member and screwed into the structural member. Is fitted with a lid member made of a foamed resin.

In the heat insulating panel mounting structure, since the screw member is insulated from the outside air by the lid member fitted into the through portion, no dew condensation occurs near the indoor end of the screw member.

According to a fourth aspect of the present invention, there is provided the heat insulating panel mounting structure, wherein the cover member is formed of foamed polyurethane foamed in the through portion.

[0013] In this mounting structure of the heat insulating panel, since the polyurethane foam is filled into the corners of the penetrating portion without gaps to form the lid member, excellent heat insulating properties are exhibited for the screw member.

According to a fifth aspect of the present invention, in the mounting structure for a heat insulating panel, the lid member is formed of any one of foamed polystyrene, foamed polyethylene, hard urethane foam, and foamed phenol resin.

In the heat insulating panel mounting structure, the lid member is formed of a foam resin which is relatively easily available and is easily formed, which contributes to cost reduction.

According to a sixth aspect of the present invention, at least one of the outer wall side member and the inner wall side member is a plywood.

In the heat insulating panel mounting structure, the plywood exhibits high in-plane rigidity, elastic limit strength, long-term allowable strength, short-term allowable strength, maximum strength and deformation capacity.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a part of a wall of a steel house constructed by using the heat insulating panel 1 according to the embodiment.

In FIG. 1, reference numeral 1 denotes a structural member formed by forming a galvanized steel sheet having a thickness of 1 to 2 mm into a U-shaped cross section, and a heat insulating panel 10 is provided outside the structural member 1 (on the near side in FIG. 1). Fixed. Here, the material and the shape of the structural member 1 are merely examples, and the present invention is not limited thereto.

As shown in FIG.
Is formed by joining an outer wall side member 12 made of plywood to one side of a foam resin core member 11 and an inner wall side member 13 made of plywood to the other side, and drilling the outer wall side member 12 and the core member 11. A series of penetrating portions 14 into which the tapping screws 2 can be inserted are provided. A plurality of the penetrating portions 14 are provided as necessary.

A drilling tapping screw 2 is inserted into the penetrating portion 14 and is screwed into the structural member 1 through the inner wall side member 13. The cover member 3 made of a foamed resin is fitted in the through portion 14. The drilling tapping screw 2 is a screw having a cutting blade formed at the tip.

Therefore, in this embodiment, since the drilling tapping screw 2 is insulated from the outside air by the foamed resin lid member 3, dew condensation occurs near the indoor side end of the drilling tapping screw 2 as in the prior art. There is no. In the construction work, the drilling tapping screw 2 is inserted from the penetrating portion 14 and is inserted into the inner wall side member 13.
Then, the work of inserting the cover member 3 as shown in FIG. 3 may be performed after the work of penetrating and screwing the above-mentioned structural member, so that a complicated work is not required.

The core material 11 may be made of any foamed resin, but in view of availability and moldability, examples include foamed polystyrene, hard polyurethane, and foamed polyethylene. Further, those manufactured by the extrusion method or those manufactured by the bead method may be used.

In the above embodiment, the outer wall side member 12 and the inner wall side member 13 are made of plywood, but only one of them may be made of plywood. When the face material is composed of other materials, it is appropriate to form the wall surface of the steel house in terms of in-plane rigidity, elastic limit strength, long-term allowable strength, short-term allowable strength, maximum strength and deformation capacity. I just need. For example, an exterior material such as a precast concrete board or a pulp-mixed asbestos cement board may be directly bonded as the outer wall side face material. In that case, a material having necessary fire resistance performance, such as an exterior material having the same kind and thickness, may be attached onto the fitted lid member 3.

For joining the core member 11, the outer wall side member 12, and the inner wall side member 13, for example, an adhesive is used. Examples of the adhesive include a vinyl acetate resin emulsion adhesive, an epoxy adhesive, a urethane adhesive, and the like.
Solvent rubber may be used, but it is desirable to keep the amount to a small amount so as not to damage the foamed resin. Also, the core material 11 and the outer wall side surface material 1
2 and the inner wall side member 13 may be joined by connecting with a stapler needle member or the like.

The cover member 3 may be made of any kind of foamed resin. For example, foamed polystyrene, polyethylene, hard urethane foam, or foamed phenolic resin may be formed so as to fit with the through portion 14. The cover member 3 is made of a foam resin which is relatively easily available and easy to mold.
This contributes to cost reduction. FIG.
As shown in (2), the lid member 3 may be formed of foamed polyurethane foamed in the through portion. This is a method based on in-situ foaming, for example, in which an uncured urethane resin mixed with an appropriate foaming agent and a curing agent is blown into the penetration portion 14 and cured at room temperature to form the lid member 3 by foaming. It is. In this way, the foamed polyurethane is filled into the corners of the penetrating portion 14 without gaps, so that excellent heat insulating properties are exhibited for the drilling tapping screw 2. Further, the lid member 3 may be fixed to the through portion 14 with an adhesive. Examples of the adhesive include a vinyl acetate resin emulsion adhesive, an epoxy adhesive, a urethane adhesive, and the like. Solvent rubber may be used, but it is desirable to keep the amount to a small amount so as not to damage the foamed resin. The coating amount is, for example, 0.05 to 0.01 g / cm ² . It is preferable that the lid member 3 is not formed with a slit or a taper. Further, after fitting of the lid member 3, a covering material that is the same as or similar to the outer wall side member 12 may be attached to the outer end (the entrance side of the penetrating portion) of the lid member 3 for finishing.

The diameter of the penetrating portion 14 is preferably small,
For example, 20 mm or less is exemplified, but for example, about 10 mm is preferable from the viewpoint of improving heat insulation.

There are various dimensions for the drilling tapping screw.
m is preferable. Although a drilling tapping screw is used in the embodiment, a general-purpose screw or screw having a cutting blade, such as a screw screw, a self-drilling screw, or a self-tapping screw, may be used.

[0029]

Next, examples of the present invention will be described together with comparative examples.

<Embodiment 1> An embodiment included in the embodiment shown in FIGS. 910mm × 1820mm
A vinyl acetate resin emulsion adhesive is applied at a thickness of 200 g / m ² to one side of a JAS 1 class 2 class plywood having a thickness of 12 mm and a thickness of 910 mm × 1820 mm and a thickness of 30 m.
m, 3 types of expanded polystyrene produced by extrusion method
And an intermediate panel was prepared by applying a load of ² t / cm ² for 24 hours. Holes having a diameter of 10 mm were vertically and horizontally formed at an arbitrary point on the intermediate panel at a pitch of 303 mm. Then 910mm × 1820mm and thickness 12mm
A vinyl acetate resin emulsion adhesive is applied to one side of a JAS1 class 2 plywood for structural use at a thickness of 200 g / m ² ,
Affix to the foamed polystyrene side of the intermediate panel, 2
A thermal insulation panel was created by applying a load of t / cm ² for 24 hours.

A structural member formed from a C-100 × 50 × 20 × 2.3 cold-rolled steel plate by inserting a drilling tapping screw having a diameter of 4 mm and a length of 19 mm into a penetrating portion of the heat insulating panel and penetrating the plywood. Screwed into. Then, a lid member formed from three types of expanded polystyrene b manufactured by an extrusion method with a diameter of 10 mm and a length of 42 mm was fitted into the above-mentioned penetrating portion.

<Embodiment 2> This is an embodiment included in another embodiment shown in FIG. The configuration of the heat insulating panel, the cold-rolled steel plate to be attached, and the drilling tapping screw are all the same as those in the first embodiment, but the lid member is different. In this embodiment, the lid member was formed of foamed polyurethane foamed in the through portion.

<Comparative Example 1> The configuration shown in FIG. 91
A JAS1 class 2 plywood 22 of 0 mm x 1820 mm and 12 mm in thickness has a vertical and horizontal diameter of 10 at a pitch of 303 mm.
mm holes were penetrated. A vinyl acetate resin emulsion-based adhesive was applied on one surface to a thickness of 200 g / m ² ,
It was bonded to three types of expanded polystyrene b (21) manufactured by an extrusion method of 0 mm × 1820 mm and 30 mm in thickness, and a load of ² t / cm ² was applied for 24 hours to produce an intermediate panel. Next, a vinyl acetate resin emulsion-based adhesive was applied at 200 g / m ^{2 on} one side of a plywood 23 for JAS1 class 2 class 2 having a thickness of 910 mm × 1820 mm and a thickness of 12 mm.
And applied to the foamed polystyrene side of the intermediate panel, and a load of ² t / cm ² was applied for 24 hours to form the heat insulating panel 20.

As shown in FIG. 5, a drilling tapping screw 25 having a diameter of 4 mm and a length of 75 mm is inserted into the penetrating portion 24 of the heat insulating panel 20 and penetrated through the plywood 23.
It screwed into the structural member 26 shape | molded from the cold rolled steel plate of 100x50x20x2.3. Next, the penetration portion 24
A JAS1 class 2 structural plywood 27 having a diameter of 10 mm and a length of 12 mm was fitted to this.

<Comparative Example 2> The configuration shown in FIG. 91
A vinyl acetate resin emulsion-based adhesive is applied at a thickness of 200 g / m ² to one side of a plywood 32 for JAS class 1 class 2 having a thickness of 0 mm × 1820 mm and a thickness of 12 mm.
Laminated with 3 types of expanded polystyrene b (31) manufactured by an extrusion method with a thickness of 1820 mm and a thickness of 30 mm, 2t
An intermediate panel was created by applying a load of / cm ² for 24 hours. Then 910mm x 1820mm and thickness 12
A 200 g / m ² thickness of a vinyl acetate resin emulsion-based adhesive is applied to one side of a JAS1 class 2 class plywood 33 mm in thickness of 200 mm, and attached to the expanded polystyrene side of the intermediate panel, and a load of ² t / cm ² is applied. The heat insulation panel 30 was created by loading for 24 hours.

As shown in FIG. 6, a drilling tapping screw 35 having a diameter of 4 mm and a length of 75 mm is inserted into the penetrating portion 34 of the heat insulating panel 30 and penetrated through the plywood.
It was screwed into a structural member 36 formed from a cold rolled steel sheet of 0 × 50 × 20 × 2.3.

Regarding the mounting structure of each of the heat insulating panels described above,
The outdoor side was set at 10 ° C. and RH (relative humidity) at 30%, and the indoor side was set at 60 ° C. and RH at 50%, and left for 48 hours to examine the occurrence of dew condensation. As a result, in Comparative Example 1 and Comparative Example 2, dew condensation occurred near the indoor end of the drilling tapping screw, whereas Example 1 and Example 2
It was confirmed that no condensation had occurred.

[0038]

As described above, the heat insulation panel for a steel house according to the first aspect of the present invention is attached to a structural member by a screw member such as a drilling tapping screw, and a through-hole is fitted or filled with a foamed resin. The screw member is insulated from outside air by the above-mentioned fitted or filled foam resin and dew condensation occurs near the indoor side end, while taking advantage of the conventional features such as simple construction and realization of high airtight and high heat insulation housing. Does not occur, and rusting of the structural member can be effectively prevented.

According to the second aspect, the plywood exhibits a high level of in-plane rigidity, elastic limit strength, long-term allowable strength, short-term allowable strength, maximum strength and deformability, so that it is suitable as a heat insulating panel for a steel house. It becomes something.

According to the third aspect of the present invention, the screw member such as the drilling tapping screw is insulated from the outside air by the foamed resin lid member, so that dew condensation does not occur near the indoor side end. Rust of the structural member can be effectively prevented.

According to the fourth aspect, since the foamed polyurethane is filled into the corners of the penetrating portion without gaps to form the lid member, excellent heat insulating properties are exhibited for screw members such as drilling tapping screws. In addition, the occurrence of dew condensation on the screw member and the rusting of the structural member can be more effectively prevented.

According to the fifth aspect, since the lid member is made of a foam resin which is relatively easily available and easy to mold, it contributes to a reduction in construction costs.

According to the sixth aspect, the plywood exhibits a high level of in-plane rigidity, elastic limit strength, long-term allowable strength, short-term allowable strength, maximum strength and deformation capacity. It becomes suitable as a structure.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a mounting structure of a heat insulating panel according to an embodiment;

FIG. 2 is an enlarged longitudinal sectional view of the embodiment,

FIG. 3 is a diagram corresponding to FIG. 2 of the embodiment, showing a state in which a lid member is fitted;

FIG. 4 is a view corresponding to FIG. 2 of another embodiment showing a state in which the lid member is foamed;

FIG. 5 is a diagram corresponding to FIG. 2 showing Comparative Example 1,

FIG. 6 is a diagram corresponding to FIG. 2 showing Comparative Example 2,

FIG. 7 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structural member 2 Drilling tapping screw (screw member) 3 Lid member 10 Heat insulation panel 11 Core material 12 Outer wall side material 13 Inner wall side material 14 Penetration part

Claims (6)

[Claims] An outer wall side member is provided on one side of a core of a foamed resin,
A heat insulating panel for a steel house, wherein an inner wall side member is joined to the other side, and a through portion through which a screw member such as a drilling tapping screw can be inserted is penetrated in the outer wall side member and the core member. 2. The heat insulating panel for a steel house according to claim 1, wherein at least one of the outer wall side member and the inner wall side member is a plywood. 3. A heat insulating panel formed by sequentially joining an inner wall side member, a foamed resin core member and an outer wall side member to the outside of a structural member made of a steel plate or the like, and penetrating the outer wall side member and the core member in series. A screw member such as a drilling tapping screw inserted from the provided penetrating portion is screwed into the structural member through the inner wall side surface material, and a lid member made of foam resin is fitted into the penetrating portion. Insulation panel mounting structure for steel houses. 4. The mounting structure for a heat insulating panel for a steel house according to claim 3, wherein the lid member is formed of foamed polyurethane foamed in the through portion. 5. The mounting structure for a heat insulating panel for a steel house according to claim 3, wherein the lid member is formed of any one material of expanded polystyrene, expanded polyethylene, rigid urethane foam, and expanded phenol resin. 6. A plywood according to claim 3, wherein at least one of the outer wall side member and the inner wall side member is a plywood.
The mounting structure of the heat insulation panel for a steel house according to the paragraph.