JPH0727284Y2 - Insulation wall panels - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a heat insulating wall panel, more specifically, it is interposed between an outer wall material and an inner wall material to form a shielded space on the back surface of the inner wall material. It relates to heat insulation wall panels.

[Prior Art] Conventionally, in the structure of a wall in which a breathable heat insulating material such as glass wool or rock wool is interposed between the exterior material of the wall and the inner wall material,
Moisture inside the room that has penetrated into the insulation through the inner wall material causes dew condensation due to the cold air flowing from the underfloor to the ceiling space, damaging the mortar and base, causing it to rot, and also causing white ants to collect. It is known that a heat insulating wall panel filled with a synthetic resin foam as a heat insulating material is configured in the body, and the heat insulating wall panel is fixed between the pillar materials to block cold air flowing from under the floor to the ceiling space.

Further, in such a heat insulating wall panel, since there is no operation space for a tool when fixing the heat insulating wall panel to a pillar material, etc. In the heat insulation wall panel interposed between the inner wall material and the inner wall material, there has already been proposed a heat insulation wall panel in which a shielded space is formed on the back surface of the inner wall material in order to secure a space for wiring or piping in the wall (actual application). See No. 1-67707).

That is, as shown in FIG. 6, a heat insulating wall panel having a recess 25 between the exterior material 11 and the inner wall material 12 which form the wall 10.
20 is interposed, the end faces 24a, 24a of the upper and lower protruding portions 24, 24 of the heat insulation wall panel 20 are joined to the back surface of the inner wall material 12, and the recess 25 of the heat insulation wall panel 20 is formed on the back surface of the inner wall material 12. A shielded space R is provided. In the figure, 17 is a joist supporting the floor 18, and 19 is a ceiling.

[Problems to be Solved by the Invention] In an already proposed heat insulating wall panel that forms a shielded space on the back surface of an inner wall material, the temperature and humidity inside the room passing through the inner wall material are There was a problem that when the temperature of the inner wall suddenly dropped, it could cause dew condensation on the back surface of the inner wall material.

The present invention has been made to solve such a problem, and an object thereof is to provide a heat insulating wall panel that does not cause dew condensation on the back surface of the inner wall material forming the shielded space.

[Means for Solving the Problems] In order to achieve the above object, a heat insulating wall panel interposed between an exterior material and an inner wall material, in which a frame body and a face material and a space formed by them are provided. A heat-insulating material filled in the inner wall material, and upper and lower projections have upper and lower projections, respectively, and the end surface of each projection is joined to the back surface of the inner wall material to form a shielded space between the inner wall material and the inner wall material. In the heat-insulating wall panel in which the space is formed, in order to connect the shielded space and the space above the ceiling, the upper projection has a diameter of 3 to 30 mm, preferably 10 mm.
It has 15 to 20 communicating holes of ~ 20 mm / 910 mm, which are provided at approximately equal intervals.

[Operation] The shield space on the back side of the inner wall material and the space above the ceiling have a diameter of 3 to 30.
mm, 15 to 20 pieces / 910 mm, which are communicated with each other by communication holes that are provided at approximately equal intervals, so the air (high humidity) in the shielded space gradually flows into the space above the ceiling, while the temperature inside the room When the temperature drops, the air in the space above the ceiling flows into the shielded space to promote a decrease in humidity inside the shielded space, so even if the temperature in the room drops sharply, condensation will form on the back surface of the inner wall material. Does not occur.

[Embodiment] An embodiment of the present invention will be described below with reference to the heat insulating wall panel shown in the drawings.

In the drawings, the same or corresponding parts are designated by the same reference numerals.

In FIG. 1, reference numeral 10 denotes a wall, which is an exterior material 11 fixed to the outside of the column members 13, 13, an inner wall material 12 facing the inside of the room, and an intervening material between the exterior material 11 and the inner wall material 12, The column members 13 and 13 and the heat insulating wall panel 20 fixed to the column members 13 and 13 constitute the same structure as the conventional one.

The heat insulation wall panel 20 is a frame body framed by a wooden board in a rectangular shape.
21, and a foaming urethane resin is poured into a space formed by a face material 22 made of plywood and heat-foamed to form as shown in FIG.
The urethane foam resin serves as the heat insulating material 23.
As the heat insulating material 23, a foamed phenol resin, silicone resin, styrene resin or core resin can be used. Further, as the face material 22, an inorganic plate, an inorganic fiber sheet, a plastic sheet or paper can be used in place of the plywood, but heating for foaming like a thin plastic sheet or paper,
In the case of a material that cannot withstand the strength, the heat insulating material 23 already formed by foaming is filled in the frame body 21 and then attached.

As shown in FIG. 2, the heat insulation wall panel 20 has a substantially U-shaped cross section with a recess 25 formed in the center, and has an upper protrusion 24 and a lower protrusion 24 at the upper and lower ends, respectively. The end surfaces 24a, 24a of the protrusions 24, 24 are joined to the back surface of the inner wall material 12 to form a shielded space R between the inner wall material 12 and the recess 25. Note that the heat insulating material 23 is not limited to one made of foamed synthetic resin, but may be glass wool, rock wool, or the like covered with the face material 22, and the protrusions 24, 24 are formed separately and bonded. You may adhere with an agent.

The end surface 24a of the upper protruding portion 24 of the heat insulating wall panel 20 is exposed to the space behind the ceiling 19 in the space behind the ceiling 19 and has a diameter of 15 mm communicating with the recess 25.
15 communicating holes 26, 26 ... are opened at approximately equal intervals of 15/910 mm. Similarly, in the portion of the end surface 24a of the lower protrusion 24 exposed under the floor 18, communication holes 27, 27 ... With a diameter of 5 mm, which communicate with the inside of the recess 25, are opened at equal intervals of 5 pieces / 910 mm. . The other end of each of the communication holes 26, 27 communicates with the shielded space R.
As a result of the experiment, the diameter of the communication holes 26, 27 is 3 to 30 mm, preferably 10 to 20 m in the case of opening to the back of the ceiling 19.
m, about 5 mm when opening below the floor 18. All of them depend on the length and number of the communication holes 26, 27, the size of the shielded space R, and the material of the inner wall material (particularly the moisture permeation resistance). In particular, when the shielding space R is small and the inner wall material has a high air permeability, it is not necessary to provide a material that opens below the floor 18.

The number of communication holes 26, 27 is 15 to 20 pieces / 910 mm in the opening to the back of the ceiling 19, and the opening to the bottom of the floor 18,
It is 3-10 pieces / 910mm. Both are inversely proportional to the size of the diameter, but it is necessary to provide them at equal intervals of 3 to 300 mm.

Such an insulating wall panel 20, as shown in FIG. 1,
When the upper and lower pillar members 13, 13 are attached to the upper and lower pillar members 13 by the frame 21, the upper communication hole 26 communicates the shielded space R with the space behind the ceiling 19, so that the air in the shielded space R is the air behind the ceiling 19. It slowly circulates and constantly relaxes the difference between the humidity above the ceiling and the humidity inside the shielded space R. Therefore, it is possible to prevent dew condensation on the back surface of the inner wall material 12 caused by the difference between the temperature above the ceiling and the temperature inside the shielded space R, without impairing the performance of the heat insulating wall panel 20. Further, by simultaneously communicating the shielded space R with the space under the floor 18, it was possible to generate an airflow from the space under the floor to the space above the ceiling through the shielded space R, thereby promoting the above-described action.

[Advantages of the Invention] According to this invention, since the air in the shielded space behind the inner wall material of the heat insulating wall panel and the space above the ceiling circulate in a limited amount, dew condensation may occur on the back surface of the inner wall material. In addition, the heat insulation effect of the heat insulation wall panel is not deteriorated. Further, when the shielded space is also communicated with the underfloor, air flows from the underfloor through the shielded space to the ceiling above the ground, further promoting the flow of air in the shielded space, and Condensation can be surely prevented.

[Brief description of drawings]

FIG. 1 is a partial longitudinal sectional view of a wall using a heat insulating wall panel showing an embodiment of the present invention, FIG. 2 is a partial perspective view of the heat insulating wall panel of FIG. 1, and FIGS. FIG. 5 is an enlarged perspective view of an essential part of a wall panel, FIG. 5 is an enlarged perspective view of an essential part corresponding to FIG. 3 of a heat insulating wall panel showing another embodiment of the present invention, and FIG. 6 uses a conventional heat insulating wall panel. It is a partial longitudinal cross-sectional view of a wall. 10 ... Wall, 11 ... Exterior material, 12 ... Inner wall material, 13 ... Pillar material, 18 ... Floor,
19 ... Ceiling, 20 ... Insulation wall panel, 21 ... Frame, 22 ... Face material, 23
… Thermal insulation, 24… Projection, 24a… End face, 25… Recess, 26, 27…
Communication hole.

Claims (1)

[Scope of utility model registration request] 1. A heat insulating wall panel interposed between an exterior material and an inner wall material, comprising a frame body, a face material, and a heat insulating material filled in a space formed by the frame body, the surface material, and In the heat insulating wall panel, which has an upper projecting portion and a lower projecting portion at a lower end portion, and a shield space is formed between the projecting portion and an inner wall material by joining an end surface of each projecting portion to a back surface of the inner wall material, To communicate with the space above the ceiling, a communication hole with a diameter of 3 to 30 mm, preferably 10 to 20 mm, is provided on the upper protrusion.
15-20 pieces / 910mm, a heat insulation wall panel characterized by being provided at approximately equal intervals.