JP5286979B2 - Insulating wall, vacuum heat insulating material used for it, and buildings and houses to which it is applied - Google Patents

Description

  The present invention relates to a heat insulating wall using a vacuum heat insulating material on a wall of a building, and a building and a house to which the heat insulating wall is applied.

  In recent years, from the viewpoint of suppressing global warming (protecting the global environment), energy savings for buildings such as houses as well as energy savings for home appliances and industrial equipment have become important issues. Therefore, various heat insulating materials and various heat insulating walls have been proposed (see, for example, Non-Patent Document 1 and Patent Document 1).

  As shown in Non-Patent Document 1, the insulation of the second-floor ceiling and the first-floor floor of a conventional wooden house with a level of energy conservation standards in 1980 (24-year-old wooden conventional frame construction method 2-story house) In the case of the above, the existing heat insulation of the hut is left on the ceiling, and a new heat insulating material is blown on the ceiling. On the floor, the heat insulating material is filled from under the floor to the joists, and the same heat insulating material is filled under the joists. Construction is done by 3 workers (about 5 hours) and 1 supervisor, 5 workers (about 10 hours) and 2 supervisors, respectively, and costs about 160,000 yen and 370,000 yen.

FIG. 29 is a schematic cross-sectional view of a conventional heat insulating wall disclosed in Patent Document 1. As shown in FIG. As shown in FIG. 29, the conventional heat insulating wall in Patent Document 1 has a plurality of substantially trapezoidal trunk edges 103 fixed on a base 101 on which a board 102 is formed on a housing α, and single-sided adhesive on the trunk edge 103. A tape is pasted, and an in-situ foam type synthetic resin foam 104 is sprayed on the entire surface of the wall base so that a space 105 is formed between the barrel edges 103, and then the single-sided adhesive tape is peeled off to remove the barrel edges 103. The surface is exposed, and a dry wall material 107 is constructed on the trunk edge 103.
Hiroaki Saito et al., “Verification of practical thermal insulation retrofit method for conventional wooden houses with energy conservation standard level in 1980”, Building Research Institute, Independent Administrative Agency, 2006 Japanese Patent Laid-Open No. 7-11717

  However, in the actual insulation improvement (Non-Patent Document 1), the construction of the ceiling on the second floor requires about 160,000 yen for three workers (about 5 hours) and one supervisor. Costs about 370,000 yen for 5 workers (about 10 hours) and 2 supervisors.

  Moreover, in the conventional heat insulation wall by patent document 1, in order to improve the heat insulation performance of a housing driving body, the several trapezoid trunk edge 103 is fixed on the base | substrate 101, and the single-sided adhesive tape is stuck on the trunk edge 103. FIG. Then, an in-situ foam type synthetic resin foam 104 is sprayed on the entire surface of the wall base 101 and a space 105 is formed between the trunk edges 103. Next, the surface of the trunk edge 103 is exposed by peeling the single-sided adhesive tape, and the waterproof sheet 106 and the dry wall material 107 are applied on the trunk edge 103 with the adhesive tape attached to the surface of the trunk edge 103.

  As described above, full-scale construction is involved in the heat insulation repair, and it is difficult to easily perform high-performance heat insulation repair.

  An object of this invention is to provide the heat insulation wall which can be constructed easily and has favorable heat insulation performance in view of the said subject.

  In order to achieve the above-mentioned object, the heat insulating wall of the present invention is such that the solidified inorganic fiber core material is depressurized between the face material constituting the indoor space and the gas barrier and flexible outer covering material in which the heat-welded layers face each other. The vacuum heat insulating material is thicker than the thickness of the core material portion between the vacuum heat insulating material that is sealed and disposed on at least a part of the indoor surface of the face material, and the jacket material in the vacuum heat insulating material. A cylinder fixed to the face material so as to be in contact with a part of the surface on the indoor side of the heat-welded portion in which the facing cover materials without the core material between the cover materials in the material are heat-welded. And a board material that is fixed to the trunk edge so as to be in contact with the interior side surface of the trunk edge and covers the vacuum heat insulating material and the trunk edge from the interior side.

  As a result, a vacuum heat insulating material is provided (fixed) on at least a part of the surface on the indoor side of the surface material (existing wall or wall base) constituting the indoor space (the portion where heat insulation performance is desired to be improved), The edge is fixed so as to be in contact with a part of the surface on the indoor side of the heat-welded portion in which the outer jacket materials facing each other without the core material between the outer jacket materials in the vacuum heat insulating material are thermally welded, By fixing the board material that covers the vacuum heat insulating material and the trunk edge from the indoor side to the trunk edge so as to be in contact with the indoor side surface of the trunk edge, it is easy to use without using foam insulation material in the field. It is possible to obtain a heat insulating wall that can be constructed and has good heat insulating performance, and if the existing wall is made into a heat insulating wall, it is not necessary to dismantle the existing wall, and it is possible to easily insulate and reinforce at a level close to wallpaper replacement Therefore, it will be very advantageous in terms of construction period and construction cost. .

  Moreover, since the heat insulation performance is very excellent compared with general-purpose heat insulating materials such as styrene foam, the vacuum heat insulating material can reduce the thickness of the heat insulating material portion, and as a result, the heat insulating wall can be thinned. Moreover, when the face material which fixes a vacuum heat insulating material is used as an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall can be reduced, the applicable range is wide and practical without problems.

  In addition, after fixing the trunk edge to the face material, the heat welded portion of the vacuum heat insulating material can be fixed to the face material by the trunk edge, so that the vacuum insulation material to the face material before fixing the trunk edge to the face material Fixing can be temporarily fixed until the barrel edge is fixed to the face material, and the vacuum insulation material is fixed to the face material before fixing the drum edge to the face material. Fixing means with reduced function can be used, and there are many choices of fixing means. Depending on the selection of the fixing means, workability can be improved and costs can be reduced.

  Moreover, since the thickness of the trunk edge is thicker than the thickness of the core part, the board material is not pressed by the core part of the vacuum heat insulating material. Thereby, a board | substrate material can be constructed in a plane state. In addition, since the load from the board material is hard to be applied to the core material part, it is difficult to damage the jacket material, and it is possible to reduce the increase in internal pressure of the vacuum heat insulating material, thus maintaining a heat insulating wall with high heat insulating performance for a long period of time. can do.

  In addition, the difference in thickness between the trunk edge and the core part is equal to or greater than the increase in the thickness of the core part when the internal pressure of the vacuum heat insulating material (core part) rises to near atmospheric pressure and the core part expands. If the internal pressure of the vacuum heat insulating material (core material part) rises to near atmospheric pressure and the core material part swells and thickens, the gap between the board material and the core material part causes the thickness of the core material part to The increase can be absorbed, and the problem that the board material is pushed by the core member and swells indoors can be eliminated.

  In addition, it is preferable that the clearance gap between a board material and a core material part is 15 mm or less, and if the said clearance gap is 15 mm or less, the convection of the air of a clearance gap can be suppressed and the heat insulation wall by the convection of the clearance gap air is The deterioration of heat insulation can be suppressed.

  Moreover, since the core material of the vacuum heat insulating material is a solidified inorganic fiber core material, when the internal pressure of the vacuum heat insulating material is increased, the vacuum heat insulating material is more than the vacuum heat insulating material using the non-solidified inorganic fiber core material. The swelling of the material is small.

  Also, the vacuum insulation is fixed to the face material after the vacuum heat insulating material is placed (fixed), so the vacuum heat insulation is compared to the case where the vacuum heat insulating material is placed (fixed) after the body edge is fixed to the face material. There is an effect that it is difficult to cause a problem even if the allowable range of the dimensional variation of the material is wide.

  In addition, a building in which the heat insulating wall of the present invention is applied to any one of the walls, ceiling, and floor constituting the indoor space has excellent heat insulating performance, so even when the outside air temperature varies greatly, the room temperature variation is small. If the room air is cooled or heated in order to keep the room temperature at a predetermined temperature, less energy is required for cooling or heating the room air. In particular, when the building is a house, a comfortable space can be realized with less air-conditioning energy (air-conditioning costs).

  The heat insulating wall of the present invention can be easily constructed without using a foam heat insulating material that is foamed on site, and can obtain a heat insulating wall with good heat insulating performance. When an existing wall is used as a heat insulating wall, the existing wall is disassembled. There is no need to do this, and it is possible to easily reinforce the insulation at a level close to the replacement of the wallpaper, so that an advantageous effect can be obtained in terms of construction period and construction cost.

  Moreover, since the vacuum heat insulating material is used, the heat insulating wall can be thinned. Moreover, when the face material which fixes a vacuum heat insulating material is used as an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall can be reduced, the applicable range is wide and practical without problems.

  In addition, the vacuum heat insulating material can be fixed to the face material before fixing the trunk edge to the face material until the trunk edge is fixed to the face material. For fixing the vacuum heat insulating material to the face material, there can be used fixing means whose fixing or bonding function deteriorates over time, and there are many choices of fixing means, and workability depends on the selection of fixing means. Improvement and cost reduction.

  Moreover, since the thickness of the trunk edge is thicker than the thickness of the core part, the board material is not pressed by the core part of the vacuum heat insulating material. Thereby, a board | substrate material can be constructed in a plane state. In addition, since the load from the board material is hard to be applied to the core material part, it is difficult to damage the jacket material, and it is possible to reduce the increase in internal pressure of the vacuum heat insulating material, thus maintaining a heat insulating wall with high heat insulating performance for a long period of time. can do.

  In addition, the difference in thickness between the trunk edge and the core part is equal to or greater than the increase in the thickness of the core part when the internal pressure of the vacuum heat insulating material (core part) rises to near atmospheric pressure and the core part expands. If the internal pressure of the vacuum heat insulating material (core material part) rises to near atmospheric pressure and the core material part swells and thickens, the gap between the board material and the core material part causes the thickness of the core material part to The increase can be absorbed, and the problem that the board material is pushed by the core member and swells indoors can be eliminated.

  Moreover, since the core material of the vacuum heat insulating material is a solidified inorganic fiber core material, when the internal pressure of the vacuum heat insulating material is increased, the vacuum heat insulating material is more than the vacuum heat insulating material using the non-solidified inorganic fiber core material. The swelling of the material is small.

  Also, the vacuum insulation is fixed to the face material after the vacuum heat insulating material is placed (fixed), so the vacuum heat insulation is compared to the case where the vacuum heat insulating material is placed (fixed) after the body edge is fixed to the face material. There is an effect that it is difficult to cause a problem even if the allowable range of the dimensional variation of the material is wide.

  In addition, a building in which the heat insulating wall of the present invention is applied to any one of the walls, ceiling, and floor constituting the indoor space has excellent heat insulating performance, so even when the outside air temperature varies greatly, the room temperature variation is small. If the room air is cooled or heated in order to keep the room temperature at a predetermined temperature, less energy is required for cooling or heating the room air. In particular, when the building is a house, a comfortable space can be realized with less air-conditioning energy (air-conditioning costs).

In the heat insulating wall of the present invention , the solidified inorganic fiber core material is sealed under reduced pressure between the face material constituting the indoor space and the gas barrier and flexible outer covering material in which the heat-welding layers face each other. Between the outer cover material in the vacuum heat insulating material, which is thicker than the thickness of the core member having the core material between the vacuum heat insulating material disposed on at least a part of the surface of the vacuum heat insulating material and the outer cover material in the vacuum heat insulating material A body edge fixed to the face material so as to be in contact with a part of a surface on the indoor side of the heat-welded portion where the outer jacket materials facing each other without the core material are heat-welded, and a chamber of the body edge It consists of a board material that is fixed to the barrel edge so as to be in contact with the inner surface and covers the vacuum heat insulating material and the barrel edge from the indoor side.

  As a result, a vacuum heat insulating material is provided (fixed) on at least a part of the surface on the indoor side of the surface material (existing wall or wall base) constituting the indoor space (the portion where heat insulation performance is desired to be improved), The edge is fixed so as to be in contact with a part of the surface on the indoor side of the heat-welded portion in which the outer jacket materials facing each other without the core material between the outer jacket materials in the vacuum heat insulating material are thermally welded, By fixing the board material that covers the vacuum heat insulating material and the trunk edge from the indoor side to the trunk edge so as to be in contact with the indoor side surface of the trunk edge, it is easy to use without using foam insulation material in the field. It is possible to obtain a heat insulating wall that can be constructed and has good heat insulating performance, and if the existing wall is made into a heat insulating wall, it is not necessary to dismantle the existing wall, and it is possible to easily insulate and reinforce at a level close to wallpaper replacement Therefore, it will be very advantageous in terms of construction period and construction cost. .

  Moreover, since the heat insulation performance is very excellent compared with general-purpose heat insulating materials such as styrene foam, the vacuum heat insulating material can reduce the thickness of the heat insulating material portion, and as a result, the heat insulating wall can be thinned. Moreover, when the face material which fixes a vacuum heat insulating material is used as an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall can be reduced, the applicable range is wide and practical without problems.

  In addition, after fixing the trunk edge to the face material, the heat welded portion of the vacuum heat insulating material can be fixed to the face material by the trunk edge, so that the vacuum insulation material to the face material before fixing the trunk edge to the face material Fixing can be temporarily fixed until the barrel edge is fixed to the face material, and the vacuum insulation material is fixed to the face material before fixing the drum edge to the face material. Fixing means with reduced function can be used, and there are many choices of fixing means. Depending on the selection of the fixing means, workability can be improved and costs can be reduced.

  Moreover, since the thickness of the trunk edge is thicker than the thickness of the core part, the board material is not pressed by the core part of the vacuum heat insulating material. Thereby, a board | substrate material can be constructed in a plane state. In addition, since the load from the board material is hard to be applied to the core material part, it is difficult to damage the jacket material, and it is possible to reduce the increase in internal pressure of the vacuum heat insulating material, thus maintaining a heat insulating wall with high heat insulating performance for a long period of time. can do.

  In addition, the difference in thickness between the trunk edge and the core part is equal to or greater than the increase in the thickness of the core part when the internal pressure of the vacuum heat insulating material (core part) rises to near atmospheric pressure and the core part expands. If the internal pressure of the vacuum heat insulating material (core material part) rises to near atmospheric pressure and the core material part swells and thickens, the gap between the board material and the core material part causes the thickness of the core material part to The increase can be absorbed, and the problem that the board material is pushed by the core member and swells indoors can be eliminated.

  In addition, it is preferable that the clearance gap between a board material and a core material part is 15 mm or less, and if the said clearance gap is 15 mm or less, the convection of the air of a clearance gap can be suppressed and the heat insulation wall by the convection of the clearance gap air is The deterioration of heat insulation can be suppressed.

  Moreover, since the core material of the vacuum heat insulating material is a solidified inorganic fiber core material, when the internal pressure of the vacuum heat insulating material is increased, the vacuum heat insulating material is more than the vacuum heat insulating material using the non-solidified inorganic fiber core material. The swelling of the material is small.

  Also, the vacuum insulation is fixed to the face material after the vacuum heat insulating material is placed (fixed), so the vacuum heat insulation is compared to the case where the vacuum heat insulating material is placed (fixed) after the body edge is fixed to the face material. There is an effect that it is difficult to cause a problem even if the allowable range of the dimensional variation of the material is wide.

  In addition, a building in which the heat insulating wall of the present invention is applied to any one of the walls, ceiling, and floor constituting the indoor space has excellent heat insulating performance, so even when the outside air temperature varies greatly, the room temperature variation is small. If the room air is cooled or heated in order to keep the room temperature at a predetermined temperature, less energy is required for cooling or heating the room air. In particular, when the building is a house, a comfortable space can be realized with less air-conditioning energy (air-conditioning costs).

Moreover, the heat insulation wall of this invention uses the body edge which consists of a resin-made hard foam heat insulating material or a hard extrusion heat insulating material for a body edge, and consists of a resin-made hard foam heat insulating material or a hard extrusion heat insulating material. The body edge has a thermal conductivity of about 1/4 smaller than that of the plywood body edge, which is good. For this reason, the heat insulation performance of a heat insulation wall can be improved compared with the case where a plywood trunk edge is used.

Further, the heat insulating wall of the present invention is such that the outer cover material in a portion where the core material is not provided between the outer cover materials is adhered to the vacuum heat insulating material, and the adhered outer cover materials are thermally welded to each other. Thus, a vacuum heat insulating material is used in which all the covering materials of the portions where the covering materials are in close contact with each other are thermally welded.

As a result , the vacuum heat insulating material used in the present invention is a vacuum heat insulating material in which all the outer covering materials in which the outer covering materials are in close contact with each other are thermally welded, and the portion in which the outer covering materials are in close contact with each other. Since the heat welding is performed up to the vicinity of the portion where the core material is between the materials, the width of the heat welding portion is wider than the vacuum heat insulating material where only the outer jacket materials are heat welded, thereby Since the contact area with the heat welding part can be widened, the contact area between the trunk edge and the heat welding part can be widened, and the vacuum heat insulating material can be more reliably fixed by the trunk edge and the face material.

  In addition, when the pressing force received by the thermal welding part from the trunk edge is received with a wide contact area, the pressing force per unit area at the contact part between the trunk edge and the thermal welding part is reduced, so that there is a difference between the trunk edge and the thermal welding part. The contact area can be widened to reduce the possibility of damage to the heat-welded part of the vacuum heat insulating material due to the trunk edge, and the part where the jacket materials are in close contact with each other is near the part where the core material is between the jacket materials The heat welded part is damaged by the contact between the body edge and the heat welded part, or the vacuum heat insulating material is penetrated through the heat welded part separated from the core part by a predetermined distance or more and stuck into the face material. It is fixed with a member, the body edge is fixed with a member that penetrates the heat welding part at a predetermined distance or more from the body edge and the core part, and pierces the face material, or the board material is fixed to the board material, the body edge, and the core part. Even when it is fixed with a member that penetrates the heat-welded part more than a predetermined distance from and pierces the face material, A heat-welded part with sufficient width remains on the core side of the damaged part of the welded part or the part where the through hole is made, so there is little possibility of deterioration of the heat insulation performance of the vacuum heat insulating material, and the heat insulation wall with high reliability of the heat insulation performance become.

  In addition, since the portion where the jacket materials are in close contact with each other is thermally welded to the vicinity of the portion where the core material is between the jacket materials, there is a core material between the jacket materials in the direction perpendicular to the wall thickness. Even if the gap between the part and the body edge is narrowed, there is little possibility that the heat insulation performance of the vacuum heat insulating material will be deteriorated due to damage to the jacket material, and therefore the core part (the part where the core material is between the jacket materials) ) And the body edge can be narrowed to increase the covering ratio of the core part which is an effective heat insulating part of the vacuum heat insulating material in the heat insulating wall, thereby improving the overall heat insulating performance of the heat insulating wall.

Further, the heat insulating wall of the present invention is a member in which the vacuum heat insulating material is fixed by a member that penetrates the heat welding portion and pierces the face material, and as a member that penetrates the heat welding portion and pierces the face material, A fixing member such as a nail, a screw, or a tucker (stapler) can be used.

In addition, the present invention is the one in which the heat insulating wall of the above invention is applied to any one of the wall, ceiling, and floor constituting the indoor space, and has excellent heat insulating performance, even if the fluctuation of the outside air temperature is large, the fluctuation of the room temperature. When the room air is cooled or heated to keep the room temperature at a predetermined temperature, less energy is required to cool or heat the room air.

Moreover, the house of this invention applies the heat insulation wall of the said invention to the wall, ceiling, or floor which comprises indoor space, and can implement | achieve a comfortable space with little air conditioning energy (air conditioning expenses). .

  Next, the constituent materials of the vacuum heat insulating material will be described in detail.

The solidified inorganic fiber used for the core material is a known material such as glass wool, glass fiber, alumina fiber, silica alumina fiber, silica fiber, rock wool, etc. Examples of the solidification method include the inorganic fiber When the body is glass wool, a solidified core material is produced by pressurizing at a temperature of 350 to 500 ° C. for 5 to 15 minutes so that the density of the core material is 150 to 250 kg / m ³ . Then, the solidified core material used for a vacuum heat insulating material is obtained by cut | disconnecting the said core material to a predetermined dimension.

  The laminate film used for the jacket material is a laminate film in which the innermost layer is a heat-welded layer, the middle layer is a gas barrier layer, a metal foil or a metal vapor-deposited layer, and the outermost layer is provided with a surface protective layer Is applicable. In addition, the laminate film may be applied by combining two types of laminate films, ie, a laminate film having a metal foil and a laminate film having a metal vapor deposition layer.

  In addition, as a heat welding layer, a low density polyethylene film, a chain low density polyethylene film, a high density polyethylene film, a polypropylene film, a polyacrylonitrile film, an unstretched polyethylene terephthalate film, an ethylene-vinyl alcohol copolymer film, or those A mixture or the like can be used.

  As the surface protective layer, known materials such as nylon film, polyethylene terephthalate film, and stretched polypropylene film can be used.

  Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of an essential part when the heat insulating wall according to Embodiment 1 of the present invention is cut up and down on a horizontal plane and the lower cut surface is viewed from above, and FIG. 2 is a heat insulating wall of the same embodiment Sectional drawing of the vacuum heat insulating material to be used, FIG. 3 is a top view of the vacuum heat insulating material used for the heat insulating wall of the embodiment.

  FIG. 4 is a plan view showing a state in which the first vacuum heat insulating material is fixed to the lower left column of the inner wall of the existing building which is the face material of the heat insulating wall of the same embodiment, and FIG. 5 is the same embodiment. The top view which shows the state which fixed the vacuum heat insulating material to the three rows of the lower stage of the inner wall of the existing building used as the surface material of the heat insulating wall, and the left column of the middle stage, respectively, FIG. 6 is the surface of the heat insulating wall of the embodiment It is a top view which shows the state which finished fixing the some vacuum heat insulating material to the inner wall of the existing building used as material.

  FIG. 7 is a plan view showing a state in which the body edge is fixed from the indoor side of the vacuum heat insulating material to the inner wall of the existing building which is the face material of the heat insulating wall of the same embodiment, and FIG. 8 is a view of the heat insulating wall of the same embodiment FIG. 9 is a plan view showing a state in which the board material is fixed to the left half of the trunk edge fixed to the inner wall of the existing building as the face material, and FIG. 9 shows the inner wall of the existing building as the face material of the heat insulating wall of the embodiment. It is the top view which looked at the state which finished fixing board material to the fixed trunk edge from the indoor side.

  FIG. 10 is a cross-sectional view showing a state in which the first vacuum heat insulating material is arranged in the lower left column of the inner wall of the existing building which is the face material of the heat insulating wall of the same embodiment, and FIG. 11 is the same embodiment. Sectional drawing which shows the state which has fixed the 1st vacuum heat insulating material to the row | line | column of the left side of the lower stage of the inner wall of the existing building used as a surface material of the heat insulation wall of FIG. 12, FIG. 12 is AA sectional drawing of FIG. is there.

  FIG. 13 is a cross-sectional view showing a state in which the second vacuum heat insulating material is arranged in the middle row of the lower stage of the inner wall of the existing building that is the surface material of the heat insulating wall of the embodiment, and FIG. Sectional drawing which shows the state which has fixed the 2nd vacuum heat insulating material to the center row | line | column of the lower stage of the inner wall of the existing building used as the surface material of the form of the heat insulation wall of FIG., FIG. 15 is the heat insulation wall of the same embodiment It is sectional drawing which shows the state which finished fixing the 2nd vacuum heat insulating material to the center row | line | column of the lower stage of the inner wall of the existing building used as a face material of this.

  16 is a cross-sectional view taken along the line BB of FIG. 6, and FIG. 17 shows a state in which the trunk edge is fixed from the indoor side of the vacuum heat insulating material to the inner wall of the existing building which is the face material of the heat insulating wall of the same embodiment. FIG. 18 is a cross-sectional view taken along the line DD of FIG. 7, and FIG. 19 is a diagram in which board material is fixed to the left half of the trunk edge fixed to the inner wall of the existing building which is the face material of the heat insulating wall of the embodiment. 20 is a cross-sectional view taken along line FF in FIG. 8, FIG. 21 is a cross-sectional view taken along line GG in FIG. 9, and FIG. 22 is a view of an existing building serving as a face material for a heat insulating wall according to the embodiment. Sectional drawing which shows the state which has arrange | positioned the 4th vacuum heat insulating material in the row | line | column on the left side of the middle step of an inner wall, FIG. 23 is the left side of the middle step of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment. Sectional drawing which shows the state which has fixed the 4th vacuum heat insulating material to row | line | column of FIG., FIG. 24 is the left side of the middle step of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment. FIG. 25 is a cross-sectional view taken along the line CC in FIG. 6, FIG. 26 is a cross-sectional view taken along the line EE in FIG. 7, and FIG. 27 is a cross-sectional view taken along the line H in FIG. It is -H sectional drawing.

  As shown in FIGS. 1 to 27, the heat insulating wall 1 according to the first embodiment of the present invention includes an inner wall 2 of an existing building that is a heat insulating renovation part and a heat welding layer 10. Two rectangular plate-like core members 12 each having a thickness of about 8 mm obtained by solidifying a laminated body of inorganic fibers such as glass fibers between the opposing rectangular covering materials 11 having gas barrier properties are approximately in the thickness direction. Arranged in a vertical direction and separated from each other by a predetermined distance, the two core members 12 are sealed under reduced pressure so that each of the two core members 12 is located in an independent space, thereby improving the heat insulation performance of the indoor side surface of the face material (inner wall 2). In order to prevent the core portion 15 having the core material 12 between the outer cover materials 11 from overlapping with the outer cover material 11, the outer cover material is arranged in a grid pattern in the vertical direction (three steps) and the horizontal direction (three rows). There is no core material 12 between the materials 11, and the facing jacket materials 11 are thermally welded together. A plurality (nine pieces) of vacuum heat insulating materials 4 fixed to the inner wall 2 with a tucker 3 penetrating the inner wall 2 through a portion spaced apart from the core material portion 15 in the heat welding portion 16 by a predetermined distance (for example, 12 mm) or more, and a vacuum There is no core material 12 between the jacket materials 11 in the heat insulating material 4, and the resin-made materials are provided so as to be in contact with a part of the indoor side surface of the heat-welded portion 16 where the facing jacket materials 11 are heat-welded. The inner wall 2 penetrates the body edge 6 made of a hard foam heat insulating material or a hard extruded heat insulating material having a width of about 16 mm, and the heat welded portion 16 spaced from the body edge 6 and the core portion 15 by a predetermined distance (for example, 12 mm) or more. A tucker 5 which is a fixing member for fixing the barrel edge 6 to the inner wall 2 by being stabbed into the inner wall 2, and the vacuum heat insulating material 4 and the barrel edge 6 fixed to the barrel edge 6 so as to be in contact with the interior side surface of the barrel edge 6 Two boards made of gypsum board covering from the indoor side The board material 8 is inserted into the inner wall 2 through the board member 8, the trunk edge 6, and the heat welding part 16 separated from the core part 15 by a predetermined distance (for example, 12 mm) or more. And a wallpaper (not shown) serving as an interior material covering the interior side surface of the board material 8 fixed to the body edge 6 and the inner wall 2 by the nail 7.

  The vacuum heat insulating material 4 of the present embodiment is formed by closely contacting the outer cover materials 11 in a portion where the core material 12 does not exist between the outer cover materials 11 and heat-bonding the close outer cover materials 11 to each other. All the covering materials 11 in which the covering materials 11 are in close contact with each other are thermally welded, and the outer peripheral portion of the vacuum heat insulating material 4 is opposed to the covering material 11 without the core material 12 between the covering materials 11. There is a fin portion 18 having a width of about 22 mm, which is thermally welded together.

  Further, the right side fin portion 18 of the left side vacuum heat insulating material 4 adjacent in the lateral direction has a width of about 18 mm in the thickness direction of the left side fin portion 18 and the vacuum heat insulating material 4 of the other right side vacuum heat insulating material 4. overlapping.

  Further, the interval between the core material portion 15 of the one upper vacuum heat insulating material 4 adjacent in the vertical direction and the core material portion 15 of the other lower vacuum heat insulating material 4 is narrower than the width of the trunk edge 6. The end portion of the lower fin portion 18 on one upper side vacuum insulating material 4 adjacent in the longitudinal direction is approximately 6 mm to the thickness direction of the core material portion 15 of the other lower vacuum heat insulating material 4 and the vacuum heat insulating material 4. It overlaps with a width of about 16 mm.

  The inner wall 2 in the present embodiment is made of a material capable of driving a tucker, a screw, or a nail, which is a U-shaped metal fixture, from the indoor side and has a predetermined thickness.

  There are a plurality of pillars 9 in the vertical direction (a total of seven pillars including two outer frames) on the back surface (inside the interior side) of the inner wall 2, and there are two pillars 9 serving as outer frames in the horizontal direction. The tucker 5 and the nail 7 penetrate the inner wall 2 and pierce the pillar 9. In other words, the tucker 5 and the nail 7 have the dimensions of the respective members constituting the heat insulating wall 1 so that the part having the pillar 9 on the back surface (surface on the inner side of the inner wall) can be driven as much as possible. It is set. If the thickness and strength of the inner wall 2 are sufficient, the tucker 5 or the nail 7 may be driven into a portion where the pillar 9 is not provided on the back surface (surface inside the interior) of the inner wall 2.

  In the present embodiment, the body rim 6 made of a resin hard foam heat insulating material or a hard extruded heat insulating material is used, but it is difficult to conduct heat, such as a cork made of a material capable of driving a tucker, a screw or a nail. Other trunk edges may be used.

  The thickness of the trunk edge 7 is larger than the thickness of the core part 15 of the vacuum heat insulating material 4 so that the vacuum heat insulating material 4 does not receive a strong pressing force from the board material 8, and the thickness of the core material part 15 of the vacuum heat insulating material 4. It is thinner than the thickness of 5 mm. In the drawing, the right side fin portion 18 of the left vacuum insulating material 4 adjacent in the lateral direction overlaps with the left side fin portion 18 of the other right vacuum heat insulating material 4 in the thickness direction of the vacuum heat insulating material 4. Although the thickness of the barrel edge 6 provided in the thickness direction of the vacuum heat insulating material 4 is thinner than the thickness of the barrel edge 6 provided in the portion where the fin portion 18 does not overlap in the thickness direction of the vacuum heat insulating material 4, Since the actual thickness of the fin portion 18 is sufficiently thin compared to the thickness of the core material 12 in the sealed state of the vacuum heat insulating material 4, there is no problem even if the thickness of the trunk edge 6 is the same. .

  In the present embodiment, a gypsum board is used for the board material 8, but other boards may be selected as long as they have rigidity and can finish the indoor side surface of the heat insulating wall 1.

  As the width of the fin portion 18 increases, the vacuum heat insulating material 4 enters the space in which the outside air is sealed from the through hole formed by the fixing member that penetrates the heat welding portion 16, and the time passes. The possibility that the heat insulating performance of the heat insulating wall 1 (or the vacuum heat insulating material 4) is lowered is reduced.

  The portion of the vacuum heat insulating material 4 covered with the portion having the core material 12 (the core material portion 15) between the jacket material 11 (the heat welding layer 10) improves the heat insulating performance, but the outer peripheral portion of the vacuum heat insulating material 4 The portion covered only with the fin portion 18 is hardly improved in heat insulation performance. However, as the width of the fin portion 18 from the end portion of the fin portion 18 to the core portion 15 in the outer peripheral portion of the vacuum heat insulating material 4 becomes narrower, the covering material 11 is thermally welded from the end portion of the fin portion 18. The air is more likely to enter the space where the core material 12 is sealed under reduced pressure through the part, and the more the pressure of the space where the core material 12 is sealed under reduced pressure increases as the air enters the space where the core material 12 is sealed under reduced pressure, The heat insulation performance of the core material part 15 falls.

  In the vacuum heat insulating material 4 used in the present embodiment, the right side fin portion 18 of the left side vacuum insulating material 4 adjacent in the lateral direction is the same as the left side fin portion 18 of the other right side vacuum heat insulating material 4 and the vacuum heat insulating material. 4 is overlapped in the thickness direction, and the end of the lower fin portion 18 on the upper side of the upper vacuum heat insulating material 4 adjacent in the vertical direction is the core material portion 15 of the other lower vacuum heat insulating material 4 and the vacuum heat insulating material 4. The width of the fin portion 18 necessary for maintaining the long-term heat insulation performance of the vacuum heat insulating material 4 (from the end of the fin portion 18 of the outer peripheral portion of the vacuum heat insulating material 4 to the core material portion) 15), while the inner wall 2 (face material) constituting the indoor space is secured between the jacket material 11 which is an effective heat insulating portion of the vacuum heat insulating material 4 in the area of the portion where the vacuum heat insulating material 4 is provided. The ratio of the area covered with the part with the material 12 (core material part 15) can be increased.Therefore, the heat insulation wall 1 excellent in heat insulation performance over a long period of time can be provided.

  In the vacuum heat insulating material 4 of the present embodiment, the end of the lower fin portion 18 on one upper vacuum heat insulating material 4 adjacent in the vertical direction is connected to the core material portion 15 of the other lower vacuum heat insulating material 4. Since it is provided so as to overlap in the thickness direction of the vacuum heat insulating material 4 with a width of about 6 mm to about 16 mm, the lower fin portion 18 on one upper vacuum heat insulating material 4 adjacent in the vertical direction is a vacuum heat insulating material on the other lower side. Compared with the vacuum heat insulating material 4 of the first embodiment provided so as to overlap the fin portion 18 on the upper side of the material 4 and the thickness direction of the vacuum heat insulating material 4 with a width of about 18 mm, the vertical dimension of the core material portion 15 is about 10 mm. growing.

  Therefore, the heat insulating wall 1 of the present embodiment is provided with the vacuum heat insulating material 4 on the inner wall 2 (face material) constituting the indoor space while making the width of the fin portion 18 of the vacuum heat insulating material 4 the same as that of the first embodiment. The ratio of the area covered with the part (core material part 15) with the core material 12 between the jacket materials 11 which are effective heat insulation parts of the vacuum heat insulating material 4 in the area of the part is made larger than that of the first embodiment. Can do. Therefore, it is possible to provide the heat insulation wall 1 having better heat insulation performance than the first embodiment.

  Further, the right side fin portion 18 of the left side vacuum heat insulating material 4 adjacent in the lateral direction has a width of about 18 mm in the thickness direction of the left side fin portion 18 and the vacuum heat insulating material 4 of the other right side vacuum heat insulating material 4. A body edge 6 having a width of about 16 mm is fixed to the overlapping portion.

  Moreover, the vacuum heat insulating material 4 which has another vacuum heat insulating material 4 between the inner wall 2 (surface material) is the heat-welded part 16 (fin part 18) separated from the core material part 15 more than predetermined interval (for example, 12 mm). ) And the inner wall 2 (face material), the inner wall penetrates through a heat-welded portion 16 (fin portion 18) separated from the core portion 15 of another vacuum heat insulating material 4 by a predetermined distance (for example, 12 mm) or more. It fixes with the member (tucker 3) which pierces 2 (face material).

  Although the thickness of the core material 12 of the vacuum heat insulating material 4 of this Embodiment is around 8 mm, it is not limited to the thickness around 8 mm. As the core material 12 is thinner, the outer cover material 11 is less likely to be wrinkled around the core material 12, and the outer cover materials 11 can be easily heat-sealed to the vicinity of the core material 12. The heat insulation performance of the vacuum heat insulating material 4 is reduced by the thin amount. Conversely, the thicker the core material 12, the easier it is for the outer cover material 11 to crease around the core material 12, making it difficult to thermally weld the outer cover materials 11 to the vicinity of the core material 12. Since the thickness of the material 12 is thick, the heat insulation performance of the vacuum heat insulating material 4 is increased.

The core material 12 has a predetermined thickness of an inorganic fiber aggregate such as glass wool in which the longitudinal direction of the fibers is substantially perpendicular to the thickness direction (heat transfer direction) of the vacuum heat insulating material 4 (core material 12). The core 12 is heated under a predetermined heating and pressing condition (for example, at a temperature of 350 to 500 ° C.) so that the contact point between the inorganic fibers does not become a cross-linked portion without using a binder and the shape at the time of compression can be maintained without using a binder. What is heated and pressed at a pressure of 5 to 15 minutes so that the density is 150 to 250 kg / m ³ is used.

  What is formed by a paper making method so that the longitudinal direction of the fiber is substantially perpendicular to the thickness direction, or an inorganic fiber aggregate in which the longitudinal direction of the fiber is substantially perpendicular to the thickness direction so as to have a predetermined thickness Water or an acidic aqueous solution formed by laminating an inorganic fiber assembly formed by using an inorganic binder, and laminating an inorganic fiber assembly in which the longitudinal direction of the fibers is substantially perpendicular to the thickness direction to a predetermined thickness The eluate from the inorganic fibers may be collected by spraying at a contact point between the inorganic fibers and molded, or the inorganic powder acting as a binder may be mixed with the inorganic fibers and molded. The heat insulation performance is inferior to the core material 12 in the form.

  In addition, a core made of an inorganic material is advantageous in that it generates less gas than a core made of an organic material, and a core made of a fiber material is more advantageous than a core made of particles or powder. It is more advantageous than the material in terms of manufacturing and disposal of the vacuum heat insulating material or the heat insulating wall.

  As shown in FIG. 2, the jacket material 11 in the present embodiment is made of a laminate film having a gas barrier layer 14 between the thermal welding layer 10 and the protective layer 13, and is used as the thermal welding layer 10 on the core material 12 side. Polyethylene or the like is used, aluminum foil of 10 μm or less is used as the gas barrier layer 14, and nylon or polyethylene terephthalate is used as the protective layer 13 outside the gas barrier layer 14. The protective layer 13 may be formed by stacking two layers of nylon or polyethylene terephthalate. In addition to the metal foil such as an aluminum foil, the gas barrier layer 14 may be one in which a gas barrier layer is formed on the surface of the resin film by vapor deposition or coating or a combination of vapor deposition and coating.

  The vacuum heat insulating material 4 is formed by disposing two core materials 12 in a direction substantially perpendicular to the thickness direction and separated from each other by a predetermined distance in an outer cover material 11 made of a gas barrier laminate film having a heat welding layer 10 on the inner surface. After sealing under reduced pressure in a reduced pressure space of 0.1 Torr or less, the outer pressure of the jacket material 11 is set to atmospheric pressure, and there is no core material 12 between the jacket materials 11 due to the differential pressure between the outer pressure and the inner pressure of the jacket material 11. The portions of the jacket material 11 are brought into close contact with each other, and the heat necessary for the thermal welding layer 10 to melt is applied in a non-contact manner to the portion where the jacket materials 11 are in close contact with each other by the differential pressure. It is obtained by a manufacturing method in which the jacket materials 11 are thermally welded together.

  Here, the step of vacuum-sealing the core material 12 in the jacket material 11 in the decompression space is, for example, a bag-like shape in which the core material 12 is inserted in a vacuum chamber of a vacuum packaging machine whose pressure is reduced to 0.1 Torr or less. Even if the opening of the outer cover material 11 is sandwiched between a pair of heat welding bars and heat-welded by heating and pressurization, the two outer coverings covering the core material 12 in the vacuum chamber of the vacuum packaging machine The outer peripheral portions of the material 11 may be sandwiched between a pair of thermal welding bars over the entire circumference and thermally welded by heating and pressing.

  In addition, the core material 12 is sealed under reduced pressure in the outer cover material 11, and the outer cover material 11 is in close contact with the pressure difference between the external pressure and the internal pressure of the outer cover material 11 by setting the external pressure of the outer cover material 11 to atmospheric pressure. The step of heat-welding each other may be performed in a chamber in which the internal space can be evacuated and opened, or the core material 12 sealed in the outer cover material 11 in a reduced pressure space under reduced pressure. By taking out from the space, the external pressure of the jacket material 11 may be set to atmospheric pressure.

  Further, the heat necessary for melting the heat welding layer 10 applied in a non-contact manner can be the radiant heat of the heater and the ambient temperature, and the heat welding layer 10 applied in a non-contact manner is necessary for melting. The heat may heat the entire jacket material 11.

  Moreover, the outer periphery fin part 18 in which the outer peripheral parts of the jacket material 11 formed on the outer periphery of the vacuum heat insulating material 4 are thermally welded to each other is predetermined around the core material 12 when the outer peripheral fin part 18 is wider than necessary. The outer cover material 11 having a width (for example, 22 mm) is cut off so as to leave the heat welded portion 16 where the heat welded materials 11 are heat welded. At this time, the four corners of the outer peripheral fin part 18 of the vacuum heat insulating material 4 are not damaged by the outer peripheral fin part of the vacuum heat insulating material 4 so as not to damage the operator and other members (particularly, the other vacuum heat insulating material 4 to be stacked). It is preferable to round the four corners.

  In addition, as shown in FIG. 3, the vacuum heat insulating material 4 includes a core material portion 15 having a core material 12 between a jacket material 11 (thermal welding layer 10), and a jacket material 11 (thermal welding layer 10). The vacuum insulating material 4 used in the present embodiment has a long core member 15 in the longitudinal direction. Two rectangular welds are arranged in the horizontal direction, and the heat welding part 16 is located between the two core material parts 15 and has a width of about 26 mm between the core heat welding parts 17 and the outer peripheral fin part 18 of the vacuum heat insulating material 4. It consists of an outer peripheral heat welded part having a width of about 22 mm located on the outer periphery of the two core parts 15 and the inter-core heat welded part 17.

  The vacuum heat insulating material 4 used in the present embodiment is one in which two core parts 15 are arranged in the horizontal direction, but is not limited to this, and three or more core parts 15 are arranged in the horizontal direction. However, two or more core members 15 may be arranged in the vertical direction, or the core members 15 may be arranged in a plurality of rows and columns in a horizontal direction and a vertical direction. Moreover, although the vacuum heat insulating material 4 used by this Embodiment is one type, you may combine several types of vacuum heat insulating materials from which a magnitude | size and a shape differ, or the core material part 15 may combine one vacuum heat insulating material. Absent. Moreover, you may provide the foam heat insulating material of a predetermined shape instead of the vacuum heat insulating material 4 in the location where arrangement | positioning of the vacuum heat insulating material 4 is difficult.

  In the present embodiment, the width of the core-to-core heat welded portion 17 is set to about 26 mm, and the width of the outer peripheral fin portion 18 (outer peripheral heat welded portion) is set to about 22 mm, but 20 mm to 40 mm (preferably 22 mm to 32 mm). It ’s fine.

  When the position of the end portion on the core material portion 15 side of the heat welding portion 16 is in the center in the thickness direction of the vacuum heat insulating material 4, the vacuum heat insulating material 4 increases as the thickness of the core material 12 or the core material portion 15 increases. It is necessary to widen the width of the fin portion 18 from the end of the fin portion 18 of the outer peripheral portion to the core material portion 15 and the inter-core heat welded portion 17. For example, when the thickness of the core portion of the vacuum heat insulating material is 8 mm and the width of the fin portion 18 from the end of the fin portion 18 of the outer peripheral portion of the vacuum heat insulating material to the core material portion is 20 mm, The width at which the fin portion 18 of the outer peripheral portion can be in close contact with the face material is about 13 mm to about 15 mm, the thickness of the core portion of the vacuum heat insulating material is 12 mm, and the end of the fin portion 18 of the outer peripheral portion of the vacuum heat insulating material When the width of the fin portion 18 from the core material portion 15 to 40 mm is 40 mm, the width at which the fin portion 18 of the outer peripheral portion of the vacuum heat insulating material 4 can be in close contact with the face material (inner wall 2) is about 31 mm to about 33 mm. .

  Further, the trunk edge 6 is in contact with the vacuum heat insulating material 4 only at the heat welded portion 16 where the jacket materials 11 of the vacuum heat insulating material 4 are heat welded.

  Further, there is a trunk edge 6 on the side opposite to the inner side of the abutting portion where the ends of the adjacent board members 8 are abutted, and the trunk located on the inner side of the abutting portion where the ends of the adjacent board members 8 are abutted. Both the nail 7 that penetrates the vicinity of the butted portion of the adjacent board material 8 and the nail 7 that penetrates the vicinity of the butted portion of the other adjacent board material 8 penetrate the edge 6.

  Hereinafter, a procedure for making the inner wall 2 of an existing building, which is a heat insulation refurbishment site, into the heat insulation wall 1 of the present embodiment will be described with reference to FIGS.

  First, as shown in FIG. 4, the vacuum insulation 4 shown in FIG. 3 is arranged in the horizontal direction (left-right direction) from the corner (for example, the lower left corner) of the inner wall 2 of the existing building. In such a direction, as shown in FIG. 10, one side of the core member 15 is in close contact, and the inter-core heat weld portion 17 and the fin portion 18 (outer peripheral heat weld portion) are as wide as possible on the inner wall 2 of the building. 11 and FIG. 12 while bending the inter-core heat welded portion 17 and the fin portion 18 (outer peripheral heat welded portion) so as to be in close contact with each other, determining the installation position, and holding the vacuum heat insulating material 4 by hand so as not to move. As shown in FIG. 2, the portion (fin portion) that is in close contact with the inner wall 2 of the fin portion 18 (outer peripheral heat weld portion) on the center line of the inter-core heat weld portion 17 and is separated from the core portion 15 by a predetermined distance (for example, 12 mm) or more. 18 is about 1 to 2 mm outside the central portion in the width direction of the portion closely contacting the inner wall 2 in FIG. Fixed to the inner wall 2 with Kka 3.

  At this time, in order to prevent damage to the covering material 11 of the core portion 15 that is in close contact with the inner wall 2 due to protrusions on the surface of the inner wall 2 of the existing building or foreign matter adhering to the surface of the inner wall 2, a vacuum heat insulating material is provided in advance. It is desirable that the surface on which 4 is disposed be a smooth surface. Further, instead of making the surface on which the vacuum heat insulating material 4 is disposed a smooth surface, a protective sheet such as a paper on which the vacuum heat insulating material 4 is disposed is disposed on the inner wall 2 on which the vacuum heat insulating material 4 is disposed. May be provided.

  The tucker 3 is driven so that the line connecting the edge (side) of the core portion 15 adjacent to the tucker 3 and the two tip portions of the tucker 3 is substantially parallel. In the present embodiment, the first vacuum heat insulating material 4 to be fixed to the lower left corner (the lower left column) is made up of the inter-core heat welding portion 17, the left fin portion 18, and the right fin portion 18. The upper fin portion 18 and the lower fin portion 18 were fixed with six tuckers 3 respectively. As a result, the core material portion 15 includes four tuckers 3 that penetrate the upper fin portion 18, three tuckers 3 that penetrate the lower fin portion 18, and four that penetrate the inter-core heat welding portion 17. The tucker 3, the four tuckers 3 that penetrate the left fin portion 18, and the four tuckers 3 that penetrate the right fin portion 18 are fixed.

  Further, in order to secure a region where the nail 7 is driven into the fin portion 18 (outer peripheral heat welded portion), a portion where the upper fin portion 18 and the inter-core heat weld portion 17 intersect, a lower fin portion 18 and the core A portion where the inter-material heat welding portion 17 intersects, a portion where the upper fin portion 18 and the left fin portion 18 intersect, a portion where the lower fin portion 18 and the left fin portion 18 intersect, and an upper fin The tucker 3 is not driven into a portion where the portion 18 and the right side fin portion 18 intersect and a portion where the lower side fin portion 18 and the right side fin portion 18 intersect.

  Adjacent tuckers 3 are spaced apart from each other by a predetermined distance to ensure an area in which the tucker 5 is driven into the inter-core heat welding part 17 and the fin part 18 (outer peripheral heat welding part).

  When the first vacuum heat insulating material 4 is fixed to the corner (lower left corner) of the inner wall 2 of the existing building with the tucker 3, the next second vacuum heat insulating material 4 is as shown in FIG. In addition, the core member 15 is oriented in such a manner that the core member 15 is aligned in the horizontal direction (left-right direction), and one side of the core member 15 is in close contact, and the left fin portion 18 (outer peripheral heat welded portion) is on the left (first sheet) vacuum. The right side fin portion 18 of the heat insulating material 4 is in close contact with the portion that is in close contact with the inner wall 2, and the inter-core heat welding portion 17, the upper side, the lower side, and the right side fin portion 18 (outer peripheral heat welding portion) are the inner wall 2 of the building. The core-to-core heat welded portion 17 and the fin portion 18 (outer peripheral heat welded portion) are bent so as to adhere to each other with the widest possible width, and the left fin portion 18 on the left side (first sheet) of the vacuum heat insulating material 4 The left fin portion 18 of the right (second) vacuum heat insulating material 4 is arranged so as to overlap with the width of about 18 mm in the thickness direction of the vacuum heat insulating material 4, As shown in FIGS. 14 and 15, while holding the vacuum heat insulating material 4 by hand, it adheres closely to the inner wall 2 on the center line of the inter-core heat welding portion 17 and the fin portion 18 (outer peripheral heat welding portion). A portion that is separated from the core portion 15 by a predetermined distance (for example, 12 mm) or more (about 1 to 2 mm outside the central portion in the width direction of the portion that is in close contact with the inner wall 2 in the fin portion 18) is the first vacuum heat insulating material As in the case of 4, the inner wall 2 is fixed by the tucker 3.

  The tucker 3 that fixes the fin portion 18 on the left side (first vacuum heat insulating material 4 side) of the second vacuum heat insulating material 4 is spaced from the core material portion 15 of the second vacuum heat insulating material 4 by a predetermined distance. The heat-welded part 16 (fin part 18) separated by (for example, 12 mm) or more and the heat-welded part 16 (fin part 18) separated from the core material part 15 of the first vacuum heat insulating material 4 by a predetermined distance (for example, 12 mm) or more. However, since the position is shifted with respect to the tucker 3 to which the fin portion 18 of the first vacuum heat insulating material 4 is fixed, the tuckers 3 do not collide with each other. .

  After fixing the second vacuum heat insulating material 4 with the tucker 3, the next third vacuum heat insulating material 4 is fixed to the inner wall 2 with the tucker 3 as in the case of the second vacuum heat insulating material 4. To do. When the third vacuum heat insulating material 4 is fixed to the state shown in FIG. 16 by the tucker 3, the lower three rows are finished.

  In the present embodiment, the positions of the adjacent tuckers 3 are shifted in the width direction of the fin portions 18 (outer peripheral heat welded portions) so that the tuckers 3 do not collide with each other in the portion where the fin portions 18 overlap. (Along the side of the vacuum heat insulating material 4 or the core part 15).

  After fixing the third vacuum heat insulating material 4 with the tucker 3 and finishing the lower three rows, the fourth vacuum heat insulating material 4 is placed on the left side (first row) of the middle step as shown in FIG. One side of the core material part 15 is in close contact with the material part 15 in the horizontal direction (left and right direction), and the end of the lower fin part 18 (outer peripheral heat welded part) is on the lower side (first sheet). Of the vacuum heat insulating material 4 on the inner wall 2 of the building. Further, the inner heat insulating portion 17 and the upper, left and right fin portions 18 (outer peripheral heat welding portions) overlap as wide as possible on the inner wall 2 of the building. Bend the inter-core heat welded portion 17 and the fin portion 18 (peripheral heat welded portion) so that they are in close contact with each other, and the upper (fourth) vacuum heat insulating material 4 core material portion 15 and the lower (first) The end of the fin portion 18 on the lower side of the upper (fourth) vacuum heat insulating material 4 is on the lower side so that the space between the vacuum heat insulating material 4 and the core material portion 15 becomes narrower than the width of the body edge 6. one The core material part 15 of the vacuum heat insulating material 4 and the thickness direction of the vacuum heat insulating material 4 are arranged so as to overlap with each other with a width of about 6 mm to about 16 mm, while holding the vacuum heat insulating material 4 by hand so as not to move. The inter-material heat welded portion 17, the left side fin portion 18, and the right side fin portion 18 are fixed to the inner wall 2 by four tackers 3, and the upper fin portion 18 is fixed to the inner wall 2 by six tackers 3. As a result, the core member 15 includes three tuckers 3 penetrating the upper fin portion 18, four tackers 3 penetrating the inter-core heat welding portion 17, and four tackers penetrating the left fin portion 18. 3 and four tuckers 3 penetrating the right fin 18 are fixed to the inner wall 2.

  The fifth vacuum heat insulating material 4 has a fin portion 18 on the right side of the left (fourth) vacuum heat insulating material 4 and a fin portion 18 on the left side of the right (fifth) vacuum heat insulating material 4. Is overlapped with a width of about 18 mm in the thickness direction, and the interval between the core material portion 15 of the upper (fifth) vacuum heat insulating material 4 and the core material portion 15 of the lower (second) vacuum heat insulating material 4 is a cylinder. The end of the lower fin portion 18 of the upper (fifth) vacuum heat insulating material 4 is narrower than the width of the edge 6 and the core material portion 15 of the lower (second) vacuum heat insulating material 4 The vacuum heat insulating material 4 is arranged so as to overlap with a width of about 6 mm to about 16 mm in the thickness direction, and while holding the vacuum heat insulating material 4 by hand so as not to move, the inter-core heat welding portion 17 and the left fin portion 18 The right fin portion 18 is fixed to the inner wall 2 with four tuckers 3, and the upper fin portion 18 is fixed to the inner wall 2 with six tuckers 3. As a result, the core member 15 includes three tuckers 3 penetrating the upper fin portion 18, four tackers 3 penetrating the inter-core heat welding portion 17, and four tackers penetrating the left fin portion 18. 3 and four tuckers 3 penetrating the right fin 18 are fixed to the inner wall 2.

  The sixth vacuum heat insulating material 4 is fixed to the inner wall 2 with the tucker 3 on the right side (third row) of the inner wall 2 in the same manner as the fifth vacuum heat insulating material 4, and the seventh vacuum heat insulating material. The material 4 is fixed to the inner wall 2 with the upper left side (first row) tucker 3 of the upper stage of the inner wall 2 in the same manner as the fourth vacuum heat insulating material 4, and the eighth and ninth vacuum insulating materials 4 are In the same manner as the fifth vacuum heat insulating material 4, it is fixed to the inner wall 2 with the tucker 3, and as shown in FIGS. 6, 16, and 25, the vacuum heat insulating material 4 in three rows vertically and three rows horizontally. Then, the surface on the indoor side of the inner wall 2 (the portion where heat insulation performance is desired to be improved) is covered.

  In the present embodiment, the lower fin portion 18 in the middle and upper vacuum heat insulating materials 4 is not fixed by the tucker 3 because the core material portion 15 of the upper vacuum heat insulating material 4 adjacent in the vertical direction and the other Since the space between the lower vacuum heat insulating material 4 and the core material portion 15 is narrower than the width of the trunk edge 6, the lower fin portion 18 of the upper vacuum heat insulating material 4 adjacent in the vertical direction is connected to the tucker 3. Is fixed in the vicinity of the core material portion 15 of the other lower vacuum heat insulating material 4 adjacent in the vertical direction or the core material portion 15 of the lower vacuum heat insulating material 4 (a predetermined distance (for example, 12 mm) away from the core material portion 15). Since the tucker 3 penetrates the upper fin portion 18 of the lower portion of the vacuum insulating material), the outside air enters the space that seals the core material 12 of the core material portion 15 of the lower vacuum heat insulating material 4, and the lower vacuum heat insulating material. This is because the heat insulation performance of 4 may be deteriorated.

  In the present embodiment, the surface on the indoor side of the inner wall 2 (the portion where the heat insulation performance is desired to be improved) is covered with nine vacuum heat insulating materials 4 in three rows vertically and three rows horizontally. The number of stages, the number of columns, and the number of sheets are not limited to this.

  In the present embodiment, the vacuum heat insulating material 4 is fixed from the lower left corner. However, the present invention is not limited to this, and may be started from any of the lower right, upper left, and upper right.

  In the present embodiment, the vacuum heat insulating material 4 is fixed to each row of the first row and then moved to the next row. However, the vacuum heat insulating material 4 is fixed to each row of the first row. Then you can move on to the next column.

  In the present embodiment, the two left and right core members 15 of the vacuum heat insulating material 4 are fixed in a state where the plurality of vacuum heat insulating materials 4 are fixed to the indoor side surface of the inner wall 2 (the portion where heat insulation performance is desired to be improved). And the interval between the left core member 15 of the left vacuum insulating material 4 adjacent to the left side and the left core member 15 of the other right vacuum insulator 4 are substantially the same. , The width (about 26 mm) of the inter-core heat welded portion 17, the width (about 22 mm) of the outer peripheral fin portion 18 (outer peripheral heat welded portion), and the right side of the left side vacuum heat insulating material 4 adjacent in the lateral direction. A width (about 18 mm) is set such that the fin portion 18 and the left fin portion 18 of the other right-side vacuum heat insulating material 4 overlap in the thickness direction of the vacuum heat insulating material 4.

  Next, as shown in FIGS. 7, 17, 18, and 26, in the lateral direction, the portion that is in close contact with the inner wall 2 in the lower fin portion 18 (outer peripheral heat welded portion) of the lowermost vacuum heat insulating material 4 Longer in the left-right direction, thicker than the thickness of the core material portion 15 of the vacuum heat insulating material 4, and thinner than the thickness of the core material portion 15 of the vacuum heat insulating material 4 plus 5 mm. A body edge 6 made of a resin hard foam heat insulating material or a hard extruded heat insulating material having a width of about 16 mm slightly narrower than the space between the vacuum heat insulating material 4 and the core material portion 15 is brought into contact with the body edge 6 and the core material portion 15. Is fixed by a tucker 5 that penetrates the pillar 9 through the heat welded portion 16 of the fin portion 18 and the inner wall 2 that are separated from each other by a predetermined distance (for example, 12 mm) or more.

  At this time, the tucker 5 aims at the space between the three tuckers 3 arranged below the core parts 15 of the lowermost vacuum heat insulating material 4 on the substantially center line in the width direction of the trunk edge 6. The inner wall 2 is driven so that the line connecting the two tip portions is substantially parallel to the longitudinal direction of the trunk edge 6 and the tucker 5 is perpendicular to the inner wall 2.

  Further, the upper fin portion 18 (outer peripheral heat welded portion) of the uppermost vacuum heat insulating material 4 is longer than the thickness of the core material portion 15 of the vacuum heat insulating material 4 in the lateral direction (left and right direction) and in close contact with the inner wall 2. Thickness is thinner than the thickness of the core material portion 15 of the vacuum heat insulating material 4 by 5 mm and is slightly narrower than the distance between the upper edge of the inner wall 2 and the core material portion 15 of the uppermost vacuum heat insulating material 4 by about 16 mm. The thermal welding part 16 of the fin part 18 which contacted the trunk edge 6 which consists of a resin hard foam heat insulating material or a hard extrusion thermal insulation material, and was separated from the trunk edge 6 and the core material part 15 more than predetermined distance (for example, 12 mm). And it fixes with the tucker 5 which penetrates the inner wall 2 and pierces the pillar 9.

  At this time, the tucker 5 aims at the space between the three tuckers 3 arranged on the upper side of each core member 15 of the uppermost vacuum heat insulating material 4 on the substantially center line in the width direction of the trunk edge 6. The inner wall 2 is driven so that the line connecting the two tip portions is substantially parallel to the longitudinal direction of the trunk edge 6 and the tucker 5 is perpendicular to the inner wall 2.

  Further, the portion of the left fin portion 18 (outer peripheral heat welded portion) of the left end vacuum heat insulating material 4 that is in close contact with the inner wall 2 is longer in the vertical direction (vertical direction) and thicker than the thickness of the core material portion 15 of the vacuum heat insulating material 4. Resin having a width of about 16 mm which is thinner than the thickness of the core portion 15 of the vacuum heat insulating material 4 by 5 mm and is slightly narrower than the distance between the left edge of the inner wall 2 and the core portion 15 of the vacuum heat insulating material 4 at the left end. The body edge 6 made of a hard foam heat insulating material or a hard extruded heat insulating material made in contact with the body edge 6, and the heat welding portion 16 of the fin portion 18 separated from the core portion 15 by a predetermined distance (for example, 12 mm), It fixes with the tucker 5 which penetrates the inner wall 2 and pierces the pillar 9.

  At this time, the tucker 5 aims at the space between the four tuckers 3 arranged on the left side of the respective core members 15 on the left side of the vacuum heat insulating material 4 at the left end on the substantially center line in the width direction of the trunk edge 6. The inner wall 2 is driven so that the line connecting the two tip portions is substantially parallel to the longitudinal direction of the trunk edge 6 and the tucker 5 is perpendicular to the inner wall 2.

  Also, the portion of the right fin portion 18 (outer peripheral heat welded portion) of the right end vacuum heat insulating material 4 that is in close contact with the inner wall 2 is longer in the vertical direction (vertical direction) and thicker than the thickness of the core material portion 15 of the vacuum heat insulating material 4. Resin having a width of about 16 mm which is thinner than the thickness of the core portion 15 of the vacuum heat insulating material 4 by 5 mm and is slightly narrower than the distance between the right edge of the inner wall 2 and the core portion 15 of the vacuum heat insulating material 4 at the right end. The body edge 6 made of a hard foam heat insulating material or a hard extruded heat insulating material made in contact with the body edge 6, and the heat welding portion 16 of the fin portion 18 separated from the core portion 15 by a predetermined distance (for example, 12 mm), It fixes with the tucker 5 which penetrates the inner wall 2 and pierces the pillar 9.

  At this time, the tucker 5 aims at the space between the four tuckers 3 arranged on the right side of the respective core members 15 on the right side of the vacuum heat insulating material 4 at the right end on the substantially center line in the width direction of the trunk edge 6. The inner wall 2 is driven so that the line connecting the two tip portions is substantially parallel to the longitudinal direction of the trunk edge 6 and the tucker 5 is perpendicular to the inner wall 2.

  Further, the portion of the vacuum heat insulating material 4 that is in close contact with the inner wall 2 in the inter-core heat welding portion 17 is longer in the vertical direction (vertical direction) and thicker than the thickness of the core material portion 15 of the vacuum heat insulating material 4. It is made of a resin having a width of about 16 mm, which is the same as or slightly narrower than the interval between the two core parts 15 of each vacuum heat insulating material 4 in a state of being fixed to the inner wall 2 with a thickness less than 5 mm added to the thickness of the core part 15. The body edge 6 made of hard foam heat insulating material or hard extruded heat insulating material is brought into contact with the body edge 6, substantially on the center line in the width direction of the inter-core heat welding portion 17, and through the inner wall 2 to the column 9. Fix with the piercing tucker 5.

  At this time, the tucker 5 aims at the space between the four tuckers 3 arranged between the left and right two core members 15 of each vacuum heat insulating material 4 on the substantially center line in the width direction of the trunk edge 6. The inner wall 2 is driven so that the line connecting the two tip portions is substantially parallel to the longitudinal direction of the trunk edge 6 and the tucker 5 is perpendicular to the inner wall 2.

  Further, the right side fin portion 18 of the left side vacuum heat insulating material 4 adjacent in the lateral direction has a width of about 18 mm in the thickness direction of the left side fin portion 18 and the vacuum heat insulating material 4 of the other right side vacuum heat insulating material 4. The portion that overlaps and closely contacts the inner wall 2 is longer in the vertical direction (up and down direction) and thicker than the thickness of the core material portion 15 of the vacuum heat insulating material 4 and thinner than the thickness of the core material portion 15 of the vacuum heat insulating material 4 plus 5 mm. The distance between the left core member 15 of the left vacuum insulator 4 and the left core member 15 of the other right vacuum insulator 4 adjacent to each other in the lateral direction in a state of being fixed to the inner wall 2 by thickness. A cylinder edge 6 made of a resin hard foam insulation material or a hard extrusion insulation material having a width of about 16 mm, which is the same or slightly narrow, is brought into contact with the cylinder edge 6 and the left side of the right vacuum insulation material 4 adjacent to the right side. The hot melted part 18 is spaced apart from the core part 15 by a predetermined distance (for example, 12 mm) or more. The inner wall 2 penetrates the inner wall 2 and the heat welding portion 16 separated from the core portion 15 by a predetermined distance (for example, 12 mm) at the right side fin portion 18 of the left side vacuum insulating material 4 adjacent to the side portion 16 in the lateral direction. Then, it is fixed with a tucker 5 that pierces the pillar 9.

  At this time, the tucker 5 is positioned on the substantially center line in the width direction of the trunk edge 6, and the left core member 15 on the right side of the vacuum heat insulating material 4 on the left side adjacent to the left side and the left side of the vacuum heat insulating material 4 on the other right side. Aiming at the space between the four tuckers 3 aligned with the core member 15, the line connecting the two tip portions of the tucker 5 is substantially parallel to the longitudinal direction of the trunk edge 6. The inner wall 2 is driven so that 5 is perpendicular to the inner wall 2.

  In the drawing, the right side fin portion 18 of the left vacuum insulating material 4 adjacent in the lateral direction overlaps the left side fin portion 18 of the other right vacuum heat insulating material 4 in the thickness direction of the vacuum heat insulating material 4. The thickness of the barrel edge 6 provided in the portion where the fin portion 18 is provided is thinner by the thickness of the fin portion 18 than the thickness of the barrel edge 6 provided in the portion where the fin portion 18 does not overlap in the thickness direction of the vacuum heat insulating material 4. However, since the actual thickness of the fin portion 18 is sufficiently smaller than the thickness of the core material 12 in the sealed state of the vacuum heat insulating material 4, even if the thickness of the trunk edge 6 is the same, there is a problem. There is no. Further, as shown in the drawing, the right side fin portion 18 of the left side vacuum heat insulating material 4 adjacent in the lateral direction is in the thickness direction of the left side fin portion 18 of the other right side vacuum heat insulating material 4 and the vacuum heat insulating material 4. The thickness of the barrel edge 6 provided in the overlapping portion is made thinner by the thickness of the fin portion 18 than the thickness of the barrel edge 6 provided in the portion where the fin portion 18 does not overlap in the thickness direction of the vacuum heat insulating material 4. It doesn't matter.

  The vacuum insulator 4 is fixed to the inner wall 2 by fixing the trunk edge 6 to the indoor side surface of the inner wall 2 so that the heat welding portion 16 of the vacuum insulator 4 is sandwiched between the inner edge 2 and the inner surface of the inner wall 2. It can be firmly fixed to the indoor side surface.

  When the thickness and strength of the inner wall 2 are sufficient, the tucker 5 penetrates the trunk edge 6 and the heat welding portion 16 of the fin portion 18 that is separated from the core portion 15 by a predetermined distance (for example, 12 mm) or more. Then, the trunk edge 6 may be fixed by piercing the inner wall 2.

  For the inner wall 2 in which the direction perpendicular to the wall surface is substantially perpendicular to the direction of gravity, especially when the board member 8 is fixed to the inner wall 2 via the trunk edge 6, the body is long in the vertical direction (vertical direction). The ratio of the long edge 6 in the vertical direction (vertical direction) is longer than the ratio of the long edge 6 in the horizontal direction (horizontal direction), rather than the ratio of the long edge 6 in the horizontal direction (left and right direction). Increasing the ratio is more stable.

  Further, the surface of the trunk edge 6 that contacts the vacuum heat insulating material 4 is a protrusion on the surface of the trunk edge 6 or a foreign matter adhering to the surface of the trunk edge 6, so that the vacuum thermal insulating material 4 is not damaged. When is hard, it is desirable to make the surface in contact with the vacuum heat insulating material 4 smooth beforehand.

  In the present embodiment, the surface of the trunk edge 6 provided in the portion where the fin portion 18 overlaps is in contact with the portion where the fin portion 18 overlaps the entire width of the trunk edge 6. It is preferable to do so.

  However, by making the width of the trunk edge 6 wide or by narrowing the width of the portion where the fin portion 18 overlaps, only the central portion in the width direction of the trunk edge 6 contacts the portion where the fin portion 18 overlaps. Even if the fin portion 18 does not overlap at the end in the width direction of the trunk edge 6, as long as the tucker 5 that fixes the trunk edge 6 penetrates the portion where the fin portion 18 overlaps. ,I do not care.

  Next, as shown in FIG. 8, FIG. 19, and FIG. 20, a board made of gypsum board cut to the size of the left half of the inner wall 2 of the existing building that becomes the heat insulation repair site (the left half of the heat insulation wall 1). The interior side of the trunk edge 6 is configured so that the vacuum insulation material 4 and the trunk edge 6 are covered from the indoor side by aligning the material 8 with the left end of the inner wall 2 of the existing building which becomes the insulation modification site with the left end of the board material 8 The fin portion 18 is positioned in contact with the surface of the rectangular core member 15 and is spaced apart from the board member 8, the trunk edge 6, and the core member 15 by a predetermined distance (for example, 12 mm) or more at the corners of the rectangular core member 15. These are fixed with a member (nail 7) that penetrates through the heat welding portion 16 and the inner wall 2 and pierces the pillar 9.

  Next, as shown in FIGS. 9, 21, and 27, a board made of gypsum board that has been cut into the size of the right half of the inner wall 2 of the existing building (the right half of the heat insulating wall 1) that will be a heat insulation renovation site. Match the right end of the board material 8 with the right end of the inner wall 2 of the existing building that will be the heat insulation refurbishment site, or match the left end with the right end of the board material 8 that is fixed to the left half of the inner wall 2 first. The heat insulating material 4 and the trunk edge 6 are positioned in contact with the interior side surface of the trunk edge 6 so as to cover the interior from the indoor side, and at the position of the outer periphery of the corner of the rectangular core member 15, the board material 8, It is fixed by a member (nail 7) that penetrates the pillar 9 through the inner edge 2 and the heat welding portion 16 of the fin portion 18 that is separated from the trunk edge 6 by a predetermined distance (for example, 12 mm) from the core portion 15.

  The body edge 6 located on the opposite side of the abutting portion where the end portions of the adjacent board members 8 are abutted to each other is provided on the other side adjacent to the nail 7 penetrating the vicinity of the abutting portion of the adjacent one of the left board members 8. Both nails 7 penetrating the vicinity of the butted portion of the right board member 8 are penetrating.

  The two board members 8 are disposed so as to come into contact with the interior side surface of the trunk edge 6, and the trunk edge 6 is provided on the side opposite to the interior of the butted portion where the ends of the board members 8 adjacent in the left-right direction are abutted. The body edge 6 located on the inner side of the abutting portion where the end portions of the board materials 8 adjacent in the left-right direction are butted together is near the abutting portion of the left board material 8 adjacent in the left-right direction. Both the penetrating nail 7 and the nail 7 penetrating the vicinity of the butted portion of the other right board member 8 adjacent in the left-right direction are penetrating, and the vicinity of the butting portion of one left board member 8 adjacent in the left-right direction Is located on the same plane as the surface of the other board member 8 adjacent to the right side in the left-right direction that is in contact with the body edge 6. The two board members 8 can be stably fixed and are adjacent to each other in the left-right direction. In the abutment of the board member 8, without a step is generated between two sheets of board material 8 be pressed adjacent to a lateral direction with respect to the interior side, it is possible to ensure the quality of the construction structures.

  In the present embodiment, each of the two rectangular board members 8 has nails 7 driven into a total of 16 locations including four corners, a position where each side is divided into three equal parts, and a position where two diagonal lines are divided into three equal parts. However, since the tucker 3 and the tucker 5 are driven in advance on the inner wall 2 avoiding the place where the nail 7 is planned to be driven, the nail 7 does not collide with the tucker 3 or the tucker 5.

  If there is a possibility that the core material portion 15 of the vacuum heat insulating material 4 is in contact with the board material 8, the protrusions on the surface on the vacuum heat insulating material 4 side of the board material 8 or foreign matter adhering to the surface, It is desirable to make the surface of the board material 8 on the side of the vacuum heat insulating material 4 smooth beforehand so that the jacket material 11 is not damaged. Moreover, you may provide the protective sheet which protects the vacuum heat insulating material 4 in the surface at the side of the vacuum heat insulating material 4 in the board material 8 instead of making the surface by the side of the vacuum heat insulating material 4 in the board material 8 into a smooth surface.

  The board member 8 is preferably fixed with nails 7 at the edges of each side of the board member 8.

  Thereafter, the unevenness between the adjacent board members 8 is filled with putty, and the interior side surface of the board member 8 is covered with an interior material (not shown) such as wallpaper so that the nail 7 cannot be seen. By covering the interior side surface of the board material 8 with an interior material (not shown) such as wallpaper so that the nail 7 cannot be seen, the appearance quality of the heat insulating wall 1 is improved.

  In the present embodiment, the trunk edge 6 is fixed to the inner wall 2 by the tucker 3, but penetrates the trunk edge 6 and the thermal welding part 16 and pierces the inner wall 2 (or the trunk edge 6 and the thermal welding part 16 and A nail or a screw that penetrates the inner wall 2 and pierces the pillar 9 may be used instead. Further, the board material 8 is fixed to the trunk edge 6 and the inner wall 2 with the nail 7, but penetrates the board material 8, the trunk edge 6 and the heat welded portion 16 and pierces the inner wall 2 (or the board material 8 and the trunk wall). A tucker or a screw may be used instead, which penetrates the edge 9, the heat-welded portion 16 and the inner wall 2 and pierces the column 9.

  The heat insulating wall 1 in the present embodiment is a solidified inorganic fiber core material 12 between a face material (inner wall 2) constituting an indoor space and a gas barrier property flexible outer covering material 11 in which the heat welding layers 10 face each other. Is a vacuum insulating material 4 which is sealed under reduced pressure and disposed on at least a part of the indoor side surface of the face material (inner wall 2), and a core material portion 15 having a core material 12 between the jacket material 11 in the vacuum heat insulating material 4. So that there is no core material 12 between the jacket materials 11 in the vacuum heat insulating material 4 in the vacuum heat insulating material 4, and the facing jacket materials 11 facing each other are in contact with a part of the surface on the indoor side of the heat welded portion 16 which is thermally welded. A board edge 6 fixed to the face material (inner wall 2), and a board which is fixed to the body edge 6 so as to be in contact with the indoor side surface of the body edge 6 and covers the vacuum heat insulating material 4 and the body edge 6 from the indoor side. It consists of material 8.

  Thereby, the vacuum heat insulating material 4 is provided (fixed) on at least a part of the indoor side surface of the inner wall 2 (existing wall or wall base) constituting the indoor space (a portion where heat insulation performance is desired to be improved). The body rim 6 is brought into contact with a part of the surface on the indoor side of the heat-welded portion 16 in which the facing jacket materials 11 are opposed to each other without the core material 12 between the jacket materials 11 in the vacuum heat insulating material 4. Next, the board material 8 that covers the vacuum heat insulating material 4 and the trunk edge 6 from the indoor side is fixed to the trunk edge 6 so as to come into contact with the indoor side surface of the trunk edge 6. Without using a foamed heat insulating material, it is possible to obtain a heat insulating wall 1 that can be easily constructed and has good heat insulating performance. When the existing wall is used as the heat insulating wall 1, it is not necessary to dismantle the existing wall, wallpaper Because it is possible to easily insulate and reinforce at a level close to the re-installation, construction period and cost Oite effect also becomes very advantageous to obtain.

  Moreover, since the heat insulating performance of the vacuum heat insulating material 4 is very superior to general-purpose heat insulating materials such as styrene foam, the thickness of the heat insulating material portion can be reduced, and as a result, the heat insulating wall 1 can be reduced. Further, when the inner wall 2 for fixing the vacuum heat insulating material 4 is an existing wall, since the protruding dimension of the wall surface to the indoor side by using the heat insulating wall 1 can be reduced, the applicable range is wide and practical without problems. is there.

  In addition, after fixing the trunk edge 6 to the inner wall 2, the heat welding portion 16 of the vacuum heat insulating material 4 can be fixed to the inner wall 2 by the trunk edge 6. 4 to the inner wall 2 can be temporarily fixed until the barrel edge 6 is fixed to the inner wall 2, and the vacuum heat insulating material 4 is fixed to the inner wall 2 before the barrel edge 6 is fixed to the inner wall 2. Thus, fixing means whose fixing or bonding function is lowered with the passage of time can be used, and there are many options for the fixing means. Depending on the selection of the fixing means, workability can be improved and cost can be reduced.

  Further, since the thickness of the trunk edge 6 is thicker than the thickness of the core member 15, the board member 8 is not pressed by the core member 15 of the vacuum heat insulating material 4. Thereby, the board | plate material 8 can be constructed in a planar state. In addition, since the load due to the board material 8 is not easily applied to the core material portion 15, it is difficult to damage the jacket material 11 and the increase in the internal pressure of the vacuum heat insulating material 4 can be reduced. The heat insulating wall 1 can be maintained.

  Further, the difference in thickness between the trunk edge 6 and the core member 15 causes the core member 15 to be expanded when the internal pressure of the vacuum heat insulating material 4 (core member 15) rises to near atmospheric pressure and the core member 15 expands. When the internal pressure of the vacuum heat insulating material 4 (core material portion 15) rises to near atmospheric pressure and the core material portion 15 swells and becomes thicker, the board material 8 and the core material portion 15 are increased. Thus, the increase in the thickness of the core member 15 can be absorbed, and the problem that the board member 8 is pushed by the core member 15 and swells indoors can be eliminated.

  In addition, it is preferable that the clearance gap between the board material 8 and the core part 15 is 15 mm or less, and if the said clearance gap is 15 mm or less, the convection of the air of a clearance gap can be suppressed and the heat insulation by the convection of the air of a clearance gap is carried out. The deterioration of the heat insulating property of the wall 1 can be suppressed.

  Moreover, since the core material 12 of the vacuum heat insulating material 4 is a solidified inorganic fiber core material, when the internal pressure of the vacuum heat insulating material 4 increases, the vacuum heat insulating material 4 using an inorganic fiber core material that is not solidified. However, the swelling of the vacuum heat insulating material 4 is small.

  Further, in order to fix the barrel edge 6 to the inner wall 2 after the vacuum heat insulating material 4 is disposed (fixed) on the inner wall 2, the vacuum heat insulating material 4 is disposed (fixed) after the drum edge 6 is fixed to the inner wall 2. Thus, even if the allowable range of the dimensional variation of the vacuum heat insulating material 4 is wide, there is an effect that the problem hardly occurs.

  Further, the body edge 6 made of a resin hard foam heat insulating material or a hard extruded heat insulating material has a thermal conductivity of about 1/4 smaller than that of a plywood body edge, which is favorable. For this reason, the heat insulation performance of the heat insulation wall 1 can be improved compared with the case where a plywood body edge is used.

  Further, the outer cover material 11 in a portion where the core material 12 is not provided between the outer cover material 11 is brought into close contact with the vacuum heat insulating material 4, and the closely attached outer cover materials 11 are thermally welded to each other. By using the vacuum heat insulating material 4 in which the covering materials 11 of all the portions that are in close contact with each other are thermally welded, the core material 12 is interposed between the covering materials 11 in the portion in which the covering materials 11 are in close contact with each other. Since it is heat-welded to the vicinity of a certain portion, the width of the heat-welded portion 16 is wider than the vacuum heat-insulating material in which only the outer jacket material 11 is heat-welded, so that the body edge 6 and the heat-welded portion 16 are Therefore, the contact area between the trunk edge 6 and the heat welding portion 16 can be widened, and the vacuum heat insulating material 4 can be more reliably fixed by the trunk edge 6 and the inner wall 2.

  Further, when the pressing force received by the thermal welding portion 16 from the trunk edge 6 is received with a wide contact area, the pressing force per unit area at the contact portion between the trunk edge 6 and the thermal welding portion 16 becomes small. The contact area with the heat-welded portion 16 can be widened to reduce the possibility of damage to the heat-welded portion 16 of the vacuum heat insulating material 4 due to the trunk edge 6, and the portion where the jacket materials 11 are in close contact with each other is the jacket material. 11, the core material 12 is thermally welded to the vicinity of the portion where the core material 12 is present, so that the heat welded portion 16 is damaged by contact between the body edge 6 and the heat welded portion 16, or the vacuum heat insulating material 4 is attached to the core material portion 15. The heat welding part 16 which penetrates the heat welding part 16 spaced apart from the trunk edge 6 by a predetermined distance (fixer 3) and sticks to the inner wall 2 is fixed, or the body edge 6 is separated from the body edge 6 and the core part 15 by a predetermined distance or more. It is fixed with a member (tucker 5) that penetrates the inner wall 2 and penetrates the Even when a member (nail 7) that penetrates the inner wall 2 through the heat welded portion 16 that is more than a predetermined distance away from the board material 8, the body edge 6, and the core material portion 15 is fixed, Since the heat-welded portion 16 having a sufficient width remains on the core material 12 side of the hole-formed portion, there is little possibility of deterioration of the heat insulating performance of the vacuum heat insulating material 4 and the heat insulating wall 1 with high reliability of the heat insulating performance is obtained.

  Further, since the portion where the covering materials 11 are in close contact with each other is thermally welded between the covering materials 11 to the vicinity of the portion where the core material 12 is present, the covering material 11 is interposed between the covering materials 11 in the direction perpendicular to the wall thickness. Even if the space between the portion where the core material 12 is located and the trunk edge 6 is narrowed, the heat insulating performance of the vacuum heat insulating material 4 is less likely to be deteriorated due to the damage of the outer cover material 11. The space between the material 11 and the body edge 6 is narrowed to increase the coverage of the core material portion 15 which is an effective heat insulation portion of the vacuum heat insulation material 4 in the heat insulation wall 1 to increase the coverage of the heat insulation wall 1. The overall thermal insulation performance can be improved.

  Further, in the heat insulating wall 1 in the present embodiment, the core material 12 is decompressed between the face material (inner wall 2) constituting the indoor space and the gas-barrier flexible outer covering material 11 in which the heat-welding layers 10 face each other. It is arranged in a grid pattern in the vertical direction and the horizontal direction so that the core material part 15 having the core material 12 between the jacket material 11 does not overlap at least part of the indoor side surface of the face material (inner wall 2). A plurality of vacuum heat insulating materials 4 provided, and the inner surface of the heat welding portion 16 in which the core materials 12 are opposed to each other without the core material 12 between the outer heat insulating materials 11 of the vacuum heat insulating material 4 are heat-welded. The body edge is formed by penetrating the face material (inner wall 2) through the body edge 6 provided so as to be in contact with the part, and the heat welding part 16 that is separated from the body edge 6 and the core part 15 by a predetermined distance or more. A fixing member (tucker 5) for fixing 6 to a face material (inner wall 2) and a surface on the indoor side of the trunk edge 6 In this way, the vacuum heat insulating material 4 is fixed to the body edge 6 and covers the vacuum heat insulating material 4 and the body edge 6 from the indoor side, and the vacuum heat insulating material 4 is a portion where the core material 12 is not provided between the jacket materials 11. The covering materials 11 are closely adhered to each other, and the adhered covering materials 11 are thermally welded to each other, and all portions of the covering material 11 in which the covering materials 11 are closely adhered to each other are thermally welded. At the outer peripheral portion of the heat insulating material 4, there is a fin portion 18 in which the core material 12 is not provided between the outer shell materials 11 and the facing outer shell materials 11 are thermally welded to each other, and one of the left side vacuum heat insulating materials adjacent in the lateral direction. The right fin portion 18 of the right side 4 overlaps the left fin portion 18 of the other right vacuum heat insulating material 4 in the thickness direction of the vacuum heat insulating material 4, and the core of one upper vacuum heat insulating material 4 adjacent in the vertical direction. The vertical direction so that the gap between the material part 15 and the core part 15 of the vacuum insulating material 4 on the other lower side is narrower than the width of the trunk edge 6. End of the lower fin portion 18 of the vacuum heat insulating material 4 of the upper adjacent ones overlap the other lower in the thickness direction of the core portion 15 and the vacuum heat insulating material 4 of the vacuum heat insulating material 4.

  As a result, a plurality of vacuum heat insulating materials 4 are applied to at least a part (portion where heat insulation performance is to be improved) of the inner wall 2 (existing wall or wall base) constituting the indoor space on the outer cover material 11. The core material part 15 with the core material 12 in between is provided (fixed) in a grid pattern in the vertical and horizontal directions so as not to overlap. Next, the trunk edge 6 is provided with the jacket material 11 in the vacuum heat insulating material 4. There is no core material 12 between them, and the outer cover materials 11 facing each other are arranged so as to be in contact with a part of the indoor side surface of the heat welded portion 16 where the heat welded portions 16 are heat welded. The body edge 6 is fixed to the face material (inner wall 2) by a member (tucker 5) that penetrates the heat welded portion 16 that is a predetermined distance or more from and penetrates the face material (inner wall 2), and then the vacuum heat insulating material 4 The board member 8 that covers the inner edge and the trunk edge 6 from the indoor side is fixed to the trunk edge 6 so as to be in contact with the inner surface of the trunk edge 6. Thus, it is possible to obtain a heat insulating wall 1 that can be easily constructed and has good heat insulating performance without using a foam foam heat insulating material. When the existing wall is used as the heat insulating wall 1, it is necessary to disassemble the existing wall. However, since it is possible to easily reinforce the insulation at a level close to the replacement of the wallpaper, an effect that is very advantageous in terms of construction period and construction cost can be obtained.

  Moreover, the thermal conductivity of the core part 15 of the vacuum heat insulating material 4 is 0.0015 to 0.0040 W / m · K at an average temperature of 24 ° C., which is about 6 of that of a hard urethane foam that is a general-purpose heat insulating material. Heat insulation performance is excellent compared to general-purpose heat insulation materials such as styrene foam having a heat conductivity of around 0.030 W / mK with a heat insulation performance of ~ 16 times, so the thickness of the heat insulation material portion can be reduced, As a result, the heat insulating wall 1 can be made thin. Further, when the face material (inner wall 2) for fixing the vacuum heat insulating material 4 is an existing wall, the projecting dimension of the wall surface to the indoor side by using the heat insulating wall 1 can be reduced, so that there is no problem in the applicable range. Widely practical.

  In addition, after fixing the trunk edge 6 to the face material (inner wall 2), the thermal welding portion 16 of the vacuum heat insulating material 4 can be fixed to the face material (inner wall 2) by the trunk edge 6. The fixing of the vacuum heat insulating material 4 to the face material (inner wall 2) before being fixed to the (inner wall 2) can be temporarily fixed until the drum edge 6 is fixed to the face material (inner wall 2). For fixing the vacuum heat insulating material 4 to the face material (inner wall 2) before fixing 6 to the face material (inner wall 2), it is possible to use a fixing means such that the function of fixing or bonding decreases with time. There are many options for the fixing means, and depending on the selection of the fixing means, the workability can be improved and the cost can be reduced.

  Moreover, the vacuum heat insulating material 4 used for the heat insulating wall 1 of the present embodiment is a vacuum heat insulating material 4 in which all the outer covering materials 11 in which the outer covering materials 11 are in close contact with each other are thermally welded. Since the portion where the materials 11 are in close contact with each other is thermally welded to the vicinity of the portion (core material portion 15) where the core material 12 is between the jacket materials 11, only the jacket material 11 in the outer peripheral portion is heat welded. Compared to the vacuum heat insulating material, the width of the heat-welded portion 16 is wider, and thereby the contact area between the trunk edge 6 and the vacuum heat insulating material 4 can be increased. Therefore, the contact area between the trunk edge 6 and the vacuum heat insulating material 4 is increased. The vacuum heat insulating material 4 can be more reliably fixed by the trunk edge 6.

  Further, when the pressing force received by the vacuum heat insulating material 4 from the trunk edge 6 is received with a wide contact area, the pressing force per unit area at the contact portion between the trunk edge 6 and the vacuum heat insulating material 4 becomes small. The contact area with the vacuum heat insulating material 4 can be widened to reduce the possibility of damage to the heat welded portion 16 of the vacuum heat insulating material 4 due to the trunk edge 6, and the portion where the outer cover materials 11 are in close contact with each other is the outer cover material. 11 is heat welded to the vicinity of the portion (core material portion 15) where the core material 12 is present, the heat welded portion 16 is damaged by contact between the body edge 6 and the vacuum heat insulating material 4, or the vacuum heat insulating material. Even when 4 is fixed with a member (tucker 3) that penetrates the heat welding portion 16 and penetrates the face material (inner wall 2), it is sufficient on the core material 12 side of the damaged portion of the heat welding portion 16 or a portion where a through hole is formed. Since there is a high possibility that the heat-welded portion 16 with a wide width remains, the heat insulation performance of the vacuum heat insulating material 4 may be deteriorated. It is small, and the reliability of the thermal insulation performance is high thermal insulation wall.

  Further, the fixing member (tucker 5) that fixes the barrel edge 6 to the face material (inner wall 2) by penetrating through the trunk edge 6 and the heat welding portion 16 and sticking into the face material (inner wall 2) is the core material portion 15. Since it penetrates the heat welding part 16 apart from the predetermined distance from the through hole formed by the fixing member (tucker 5), the heat insulation performance of the vacuum heat insulating material 4 is hardly deteriorated, and only the outer jacket materials 11 of the outer peripheral portion only. Since the heat welded portion 16 is wider than the heat-welded vacuum heat insulating material 4, the body edge 6 can be easily fixed to the face material (inner wall 2) with a fixing member such as a nail, a screw, or a tucker (stapler). .

  In addition, the portion where the covering materials 11 are in close contact with each other is thermally welded to the vicinity of the portion where the core material 12 is between the covering materials 11 (the core material portion 15), so that it is perpendicular to the thickness direction of the wall. Even if the gap between the portion (core material portion 15) where the core material 12 is located between the jacket material 11 and the trunk edge 6 is narrowed in any direction, the heat insulation performance of the vacuum heat insulating material 4 is deteriorated due to damage to the jacket material 11 Therefore, the space | interval of the part with the core material 12 (core material part 15) between the jacket materials 11 and the trunk edge 6 is made narrow, and the coverage of the vacuum heat insulating material 4 in the heat insulation wall 1 is made. It can raise and the heat insulation performance of the whole heat insulation wall 1 can be improved.

  Further, a plurality of vacuum heat insulating materials 4 are arranged in the vertical direction and the horizontal direction so that the core material portion 15 does not overlap with at least a part of the surface of the face material (inner wall 2) (a portion where heat insulation performance is desired to be improved). Since, for example, a nail longer than the thickness of the board material 8 is driven into the heat insulating wall 1, the tip of the nail pierces the vacuum heat insulating material 4, and the outer covering material 11 of the vacuum heat insulating material 4 is provided. Even when the internal pressure of the vacuum heat insulating material 4 is increased due to breakage (bag breaking), the insulation performance of the specific vacuum heat insulating material 4 whose internal pressure is increased due to the damage (bag breaking) of the jacket material 11 is reduced. The decrease in the heat insulation performance of the specific vacuum heat insulating material 4 does not spread to other vacuum heat insulating materials 4 in which the jacket material 11 is not damaged (bag breakage). Can be suppressed.

  The vacuum heat insulating material 4 used for the heat insulating wall 1 of the present embodiment has a fin portion 18 on the outer peripheral portion thereof where there is no core material 12 between the outer covering materials 11 and the facing outer covering materials 11 are heat-welded. And although the heat insulation performance improves the part covered with the part (core material part 15) with the core material 12 between the jacket materials 11 in the vacuum heat insulating material 4, the fin part 18 of the outer peripheral part of the vacuum heat insulating material 4 is improved. The heat insulation performance is hardly improved in the portion covered only with. However, as the width of the fin portion 18 from the end portion of the fin portion 18 to the core portion 15 in the outer peripheral portion of the vacuum heat insulating material 4 becomes narrower, the covering material 11 is thermally welded from the end portion of the fin portion 18. The air is more likely to enter the space where the core material 12 is sealed under reduced pressure through the part, and the more the pressure of the space where the core material 12 is sealed under reduced pressure increases as the air enters the space where the core material 12 is sealed under reduced pressure, The heat insulation performance of the core material part 15 falls.

  In the vacuum heat insulating material 4 used for the heat insulating wall 1 of the present embodiment, the core material 12 is sealed under reduced pressure between the gas-barrier and flexible outer covering materials 11 in which the heat-welding layers 10 face each other. The portions of the jacket material 11 that do not have the core material 12 are brought into close contact with each other, and the jacket materials 11 that are in close contact with each other are thermally welded. There is a fin portion 18 in which the outer cover materials 11 are thermally welded to each other without the core material 12 between the outer cover materials 11, and the plurality of vacuum heat insulating materials 4 are provided in the interior space. So that the core material portion 15 having the core material 12 does not overlap between at least a part of the indoor side surface of the face material (inner wall 2) constituting the wall (the portion where heat insulation performance is desired to be improved). It is provided in a grid pattern in the vertical and horizontal directions, but one left side adjacent in the horizontal direction The right fin portion 18 of the vacuum heat insulating material 4 overlaps the left fin portion 18 of the other right vacuum heat insulating material 4 in the thickness direction of the vacuum heat insulating material 4, and the one of the upper vacuum heat insulating materials 4 adjacent in the vertical direction. Since the end portion of the lower fin portion 18 is provided so as to overlap the core material portion 15 of the other lower vacuum heat insulating material 4 and the thickness direction of the vacuum heat insulating material 4, the heat insulating performance of the vacuum heat insulating material 4 over a long period of time. The surface material (inner wall 2) constituting the indoor space while ensuring the width of the fin portion 18 necessary for maintaining the width (the width from the end of the fin portion 18 of the outer peripheral portion of the vacuum heat insulating material 4 to the core portion 15) The ratio of the area covered with the portion (core material portion 15) having the core material 12 between the jacket material 11 which is the effective heat insulating portion of the vacuum heat insulating material 4 in the area of the portion where the vacuum heat insulating material 4 is provided It can be larger (than Form 1). Therefore, the heat insulation wall 1 excellent in heat insulation performance over a long period of time can be provided.

  In addition, the heat insulating wall 1 of the present embodiment has a gap between the core material portion 15 of the upper vacuum heat insulating material 4 adjacent in the vertical direction and the core material portion 15 of the other lower vacuum heat insulating material 4. By making it narrower than the width of the edge 6, the interval between the core material part 15 of the one upper vacuum heat insulating material 4 adjacent in the vertical direction and the core material part 15 of the other vacuum heat insulating material 4 on the other side is reduced. The core material 12 is between the covering material 11 which is an effective heat insulating portion of the vacuum heat insulating material 4 in the area of the portion where the vacuum heat insulating material 4 is provided in the face material (inner wall 2) constituting the indoor space. The ratio of the area covered with a certain part (core material part 15) can be enlarged, and the heat insulation performance of the heat insulation wall 1 can be improved.

  Further, a portion where the distance between the core portion 15 of the upper vacuum heat insulating material 4 adjacent in the longitudinal direction and the core material portion 15 of the other lower vacuum heat insulating material 4 is narrower than the width of the trunk edge 6 (the trunk edge). The vacuum heat insulating material is formed by forming a through-hole by a fixing member in the vicinity of the core portion 15 in the vacuum heat insulating material 4 by forcibly not providing the trunk edge 6 in a portion where there is not enough space for providing 6. 4 can prevent deterioration in long-term reliability of the thermal insulation performance.

  Further, in the heat insulating wall 1 of the present embodiment, the right side fin portion 18 of the left side vacuum heat insulating material 4 adjacent in the lateral direction is the same as the left side fin portion 18 of the other right side vacuum heat insulating material 4 and the vacuum heat insulating material. The body edge 6 is fixed to the portion of 4 that overlaps in the thickness direction, and the right side fin portion 18 of the left vacuum insulating material 4 adjacent in the lateral direction is the other right vacuum insulating material 4. The barrel edge 6 provided on the left side fin portion 18 and the portion of the vacuum heat insulating material 4 that overlaps the thickness direction of the vacuum heat insulating material 4 is a single body edge 6, and a plurality of vacuum heat insulating materials 4 with the fin portions 18 overlapping each other, It can be fixed to the face material (inner wall 2) without increasing the width of the body edge 6, and each of the plurality of vacuum heat insulating materials 4 fixed by one body edge 6 can be widened at the maximum width of the body edge 6. The part that can be pressed and fixed and covered with the vacuum heat insulating material 4 in the face material (inner wall 2) The width of the furring strip 6 provided in a portion surrounded by a furring strip 6 of the outer frame become the furring strip 6 and the outer frame provided on the peripheral edge 6 of the section to be) that is capable identical.

  Further, the right side fin portion 18 of the left vacuum insulating material 4 adjacent in the lateral direction overlaps the left side fin portion 18 of the other right vacuum heat insulating material 4 and the thickness direction of the vacuum heat insulating material 4. Since the provided barrel edge 6 can be fixed to the face material (inner wall 2) with a fixing member (tucker 5) that penetrates the portion where the fin portion 18 overlaps, it penetrates the portion where the fin portion 18 overlaps. With the fixing member (tucker 5), it is possible to fix the plurality of vacuum heat insulating materials 4 on which the fin portions 18 overlap each other so as not to be displaced in a direction parallel to the face material (inner wall 2).

  In addition, the heat insulating wall 1 of the present embodiment has a surface in which the vacuum heat insulating material 4 penetrates through the heat welding portion 16 (inter-core heat welding portion 17 and fin portion 18) separated from the core portion 15 by a predetermined distance or more. It is fixed with a member (tucker 3) that pierces the material (inner wall 2).

  The vacuum heat insulating material 4 used for the heat insulating wall 1 of the present embodiment is a vacuum heat insulating material 4 in which all of the outer covering materials 11 in which the outer covering materials 11 are in close contact with each other are thermally welded. Since the portion where the core members 12 are in close contact with each other is thermally welded to the vicinity of the portion where the core material 12 is located between the outer jacket materials 11, the heat is higher than that of the vacuum heat insulating material 4 in which only the outer jacket materials 11 are thermally welded. The width of the welded portion 16 (inter-core heat welded portion 17 and fin portion 18) is wide and penetrates through the heat welded portion 16 (inter-core heat welded portion 17 and fin portion 18) into the face material (inner wall 2). Thus, the member (tucker 3) for fixing the vacuum heat insulating material 4 to the face material (inner wall 2) is a heat welded part 16 (inter-core heat welded part 17 and fin part 18) separated from the core part 15 by a predetermined distance or more. Is penetrated by the member (tucker 3) that fixes the vacuum heat insulating material 4 to the face material (inner wall 2). Hardly reducing the insulating performance of the vacuum heat insulating material 4 in the hole, a nail, a screw, a member such as Tucker (stapler), it can be easily fixed to the vacuum heat insulating material 4 in face material (the inner wall 2).

  Moreover, the vacuum heat insulating material 4 which has another vacuum heat insulating material 4 between face materials (inner wall 2), the heat welding part 16 (fin part 18) spaced apart from the core material part 15 more than predetermined | prescribed space | interval, and a surface A member that penetrates the face material (inner wall 2) through the heat welded portion 16 (fin portion 18) that is separated from the core material portion 15 of another vacuum heat insulating material 4 between the material (inner wall 2) by a predetermined distance or more. The surface of the vacuum heat insulating material 4 that is fixed by the (tucker 3) and has another vacuum heat insulating material 4 between the surface material (inner wall 2) and penetrates the heat welding portion 16 (fin portion 18). When fixing with a member (tucker 3) that pierces the material (inner wall 2), it is separated from the core material part 15 of the vacuum heat insulating material 4 with another vacuum heat insulating material 4 between the face material (inner wall 2) by a predetermined distance or more. And the location away from the core material part 15 of another vacuum heat insulating material 4 between the face material (inner wall 2) more than predetermined spacing is fixed, and face material ( There is another vacuum heat insulating material 4 between the wall material 2) and the vacuum heat insulating material 4 (tucker 3) for fixing the vacuum heat insulating material 4 to the face material (inner wall 2). Since it penetrates the heat welding part 16 (fin part 18) separated from the core part 15 in the heat insulating material 4 by a predetermined distance or more (the lower fin part 18 in the middle and upper vacuum insulating materials 4 is not fixed by the tucker 3). There is another vacuum heat insulating material 4 between the face material (inner wall 2) and the member (tucker 3) for fixing the vacuum heat insulating material 4 to the face material (inner wall 2), between the face material (inner wall 2). There is almost no deterioration in the heat insulation performance of a certain other vacuum heat insulating material 4.

  Further, in the heat insulating wall 1 of the present embodiment, the board material 8 penetrates through the board material 8, the trunk edge 6, and the heat welding part 16 (fin part 18) that is separated from the core part 15 by a predetermined distance or more. It is fixed with a member (nail 7) that pierces the face material (inner wall 2), and the board material 8 penetrates only the board material 8 and does not reach the trunk edge 6 and reaches the face material (inner wall 2). The board material 8 can be fixed more firmly than when it is fixed.

  The vacuum heat insulating material 4 used for the heat insulating wall 1 of the present embodiment is a vacuum heat insulating material 4 in which all of the outer covering materials 11 in which the outer covering materials 11 are in close contact with each other are thermally welded. Since the portion where the core members 12 are in close contact with each other is thermally welded to the vicinity of the portion where the core material 12 is located between the outer jacket materials 11, the heat is higher than that of the vacuum heat insulating material 4 in which only the outer jacket materials 11 are thermally welded. The width of the welded portion 16 is wide, and the board material 8 is penetrated through the board material 8, the trunk edge 6, and the heat welded portion 16 and pierced into the face material (inner wall 2), thereby making the board material 8 into the trunk edge 6 and the face material (inner wall 2). The member (nail 7) that is fixed to each other passes through the heat-welded portion 16 that is separated from the core portion 15 by a predetermined distance or more, so that the board member 8 is fixed to the trunk edge 6 and the face material (inner wall 2) ( The through hole made by the nail 7) hardly deteriorates the heat insulating performance of the vacuum heat insulating material 4, and the nail, screw, tapping In members such as chromatography (stapler), it can be easily fixed to the board member 8 to furring strips 6 and face material and (the inner wall 2).

  The vacuum heat insulating material 4 used for the heat insulating wall 1 of the present embodiment includes a plurality (two) of core materials 12 arranged at a predetermined distance from each other in a direction substantially perpendicular to the thickness direction. An inter-core heat welding portion 17 in which the jacket materials 11 are heat-welded between the adjacent core materials 12 so that each of the core materials 12 is located in an independent space. And the width of the inter-core heat welding portion 17 between the adjacent core materials 12 is wider than the width of the trunk edge 6 so that a plurality (two) of the core materials 12 are arranged in the lateral direction. The body edge 6 is fixed to the inter-core heat welding portion 17 between the left core material 12 and the right core material 12 which are provided on the indoor side surface of the face material (inner wall 2) and are laterally adjacent. Yes.

  As a result, the left core 12 and the right core adjacent to each other in the lateral direction of each vacuum heat insulating material 4 provided on the indoor surface of the face material (inner wall 2) having a plurality of (two) core members 12 are provided. Since the trunk edge 6 can be fixed to the inter-core heat welding part 17 between the members 12, each vacuum heat insulating material 4 having a plurality of core members 12 and provided on the inner surface of the face member (inner wall 2). Between the core material 12 of the vacuum heat insulating material 4 by the body edge 6 provided in the inter-core heat weld portion 17 between the left core material 12 and the right core material 12 adjacent to each other in the horizontal direction. The left core that can fix the portion 17 to the face material (inner wall 2), has a plurality of core members 12, and is adjacent to each of the vacuum heat insulating materials 4 on the indoor side surface of the face material (inner wall 2). The trunk edge 6 provided in the inter-core thermal welding portion 17 between the core 12 and the right core 12 is composed of the left core 12 and the right core adjacent to the trunk 6 in the lateral direction. Material 12 Since it can fix to a face material (inner wall 2) with the fixing member (tucker 5) which penetrates the heat welding part 17 between core materials of between, the left side core material adjacent to the horizontal direction of each vacuum heat insulating material 4 A fixing member (tucker 5) that penetrates the inter-core heat welding portion 17 between the core material 12 and the right core material 12 so that each vacuum heat insulating material 4 is not displaced in a direction parallel to the face material (inner wall 2). Can be fixed.

  Moreover, each fixing member (Tucker 3 and Tucker 5) penetrating the inter-core heat welding portion 17 between the left core material 12 and the right core material 12 adjacent to each other in the horizontal direction of each vacuum heat insulating material 4 A through-hole is formed in the inter-core heat welding portion 17 between the left core 12 and the right core 12 adjacent to each other in the lateral direction of the vacuum heat insulating material 4, but the core 12 in the portion where the through hole is formed. Since there is a high possibility that the heat-welded portion 16 having a sufficient width will remain on the side, there is little possibility of deterioration of the heat insulating performance of the vacuum heat insulating material 4, and the heat insulating wall 1 with high reliability of the heat insulating performance is obtained.

  In addition, the vacuum heat insulating material 4 used in the present embodiment has a plurality of (two) plate-like core members 12 between the gas barrier and flexible outer covering materials 11 where the heat-welding layers 10 face each other. There is no core material 12 between the jacket materials 11 such that each of the plural (two) core materials 12 is located in an independent space. The outer covering materials 11 are brought into close contact with each other, and the adhering outer covering materials 11 are heat-welded with each other, and all the outer covering materials 11 with which the outer covering materials 11 are in close contact with each other are heat-welded. A portion that is the heat insulating material 4 and each of the plurality of core materials 12 is located in an independent space, and the core material 12 is not between the jacket materials 11 between the adjacent core materials 12. Since the outer cover materials 11 are thermally welded to form the inter-core heat welded portion 17, the same size Compared to the case where the core material 11 uses a single vacuum heat insulating material, a space in which the core material 12 is sealed under reduced pressure due to a pinhole being formed in the outer material 11 or the outer material 11 being damaged (bag breaking). Even if the internal pressure of the pipe rises and the heat insulation performance deteriorates, the pressure in the space where the specific core material 12 that is directly affected by pinholes and breakage (bag breakage) is sealed under reduced pressure increases, and the heat insulation performance only deteriorates. Thus, the deterioration of the heat insulating performance does not spread over the entire vacuum heat insulating material 4, and the effect of reducing the deterioration of the heat insulating property as the vacuum heat insulating material 4 can be obtained. Moreover, arrangement | positioning (positioning and fixing) becomes easier than the case where the core material 11 uses multiple vacuum heat insulating materials. Further, not only the peripheral fin portion 18 but also the inter-core heat welding portion 17 between the adjacent core materials 11 and the adjacent core material 11 and the core material 11 with the trunk edge 6 disposed. The board material 8 can be fixed by the nail 7 penetrating the inter-core heat welding portion 17 between the two.

  Moreover, by using the gypsum board for the board material 8 used for the heat insulation wall 1 of this Embodiment, while being able to have cheap and excellent fire resistance (heat insulation repair cost can be reduced, and the occurrence of a fire) The effect of preventing the spread of fire in the case is obtained. When the thickness of the gypsum board is 9 mm or more, there is no gap between the board material 8 and the core material portion 15 of the vacuum heat insulating material 4 when a poster or the like is fixed to the heat insulating wall 1 with a double thumbtack. However, the tip of the double thumbtack does not reach the vacuum heat insulating material 4, and the effect of preventing the vacuum heat insulating material 4 from being broken and the heat insulation performance from being lowered due to the broken bag can be obtained.

  In addition, since the general-purpose gypsum board has a thickness of 9.5 mm or more, if a general-purpose gypsum board is used for the board material 8, even if a poster or the like is fixed to the heat insulating wall 1 with a double thumbtack, the double thumbtack is used. The tip of the needle does not reach the vacuum heat insulating material 4 and the effect of preventing the vacuum heat insulating material 4 from being broken can be obtained.

  Further, even when a person or an object comes into contact with the heat insulating wall 1 from the indoor side, the board material 8 made of gypsum board has sufficient thickness and rigidity, so that it is disposed inside the board 8 due to the impact or the like. The effect which can prevent the bag breakage of the existing vacuum heat insulating material 4 is acquired.

  Further, in the heat insulating wall 1 of the present embodiment, the vacuum heat insulating material 4 can be firmly fixed to the inner surface of the inner wall 2 by the body edge 6 fixed to the inner wall 2, and the corrugated portion 18 of the vacuum heat insulating material 4 is corrugated. An effect of preventing the deformation of the board material 8 is obtained. In addition, fixing the drum edge 6 to the inner wall 2 after fixing the vacuum heat insulating material 4 to the inner wall 2 is more effective than fixing the vacuum heat insulating material 4 to the inner wall 2 after fixing the drum edge 6 to the inner wall 2. It is easy to cope with the dimensional variation of the material 4.

  Moreover, since the heat insulation wall 1 of this Embodiment uses the several vacuum heat insulating material 4, even when the pinhole is made in the jacket material 11 of the specific vacuum heat insulating material 4, and the heat insulation performance deteriorates, The deterioration of the heat insulation performance does not spread to the entire heat insulation wall 1 only by the deterioration of the heat insulation performance of the part where the specific vacuum heat insulating material 4 having deteriorated heat insulation performance is disposed, and the deterioration of the heat insulation performance of the heat insulation wall 1 can be reduced.

  The heat insulation wall 1 of this Embodiment is applicable not only to the wall (wall substantially parallel to the gravity direction) which comprises indoor space, but also to the floor and ceiling which comprise indoor space. When it is applied to the ceiling, it is necessary to fix the components such as the board material 8, the trunk edge 6, the vacuum heat insulating material 4, the nail 7, the tucker 3, 5 and the like firmly so that they do not fall. It is necessary to select the material, thickness, and structure of the board material 8, the material, structure, and width of the trunk edge 6, and the interval between the adjacent trunk edges 6 so as to withstand the load in the direction of gravity.

  Moreover, the building which applied the heat insulation wall 1 of this Embodiment to the wall, ceiling, or floor which comprises indoor space is excellent in heat insulation performance, and even when the fluctuation | variation of outside temperature is large, the fluctuation | variation of room temperature is small. If the room air is cooled or heated in order to keep the room temperature at a predetermined temperature, less energy is required for cooling or heating the room air. Particularly in the case of a house, a comfortable space can be realized with a small amount of air-conditioning energy (heating and cooling costs).

(Embodiment 2)
FIG. 28 is a schematic longitudinal sectional view of a house as an example of a building according to Embodiment 2 of the present invention. The house (building) 19 of the present embodiment is the one in which the heat insulating wall 1 of the first embodiment is applied to any one of the wall 20, the ceiling 21, and the floor 22 constituting the indoor space, and has excellent heat insulating performance. Even when the fluctuation of the outside air temperature is large, the fluctuation of the room temperature can be reduced, and when the room air is cooled or heated in order to keep the room temperature at a predetermined temperature, the energy for cooling or heating the room air is small. That's it.

  When the building in which the heat insulating wall 1 of the first embodiment is applied to any one of the wall 20, the ceiling 21, and the floor 22 constituting the indoor space is a house 19, a comfortable space can be formed with less air conditioning energy (cooling and heating costs). realizable.

  When the heat insulating wall 1 is applied to the ceiling 21, components such as the board material 8, the trunk edge 6, the vacuum heat insulating material 4, the nail 7, the tuckers 3, 5, and the like are firmly fixed. When the heat insulating wall 1 is applied to the floor 22, the material, thickness and structure of the board material 8, the material, structure and width of the body edge 6, and the distance between adjacent body edges 6 so as to withstand the load in the direction of gravity. Is selected.

  As described above, the heat insulating wall of the present invention is a heat insulating wall that can be easily constructed and has good heat insulating performance, and is optimal when renovating (insulating and renovating) the inner wall of an existing building to make a heat insulating wall. However, it can also be applied to the walls of new buildings, and is useful for residential buildings, commercial buildings, and other buildings that require thermal insulation.

Sectional drawing of the principal part at the time of cut | disconnecting the heat insulation wall in Embodiment 1 of this invention up and down by a horizontal plane, and seeing the lower cut surface from the top Sectional drawing of the vacuum heat insulating material used for the heat insulation wall of the embodiment Plan view of vacuum heat insulating material used for heat insulating wall of same embodiment The top view which shows the state which fixed the 1st vacuum heat insulating material to the column of the left side of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment The top view which shows the state which fixed the vacuum heat insulating material to the three rows of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment, and the left column of the middle stage, respectively The top view which shows the state which finished fixing the several vacuum heat insulating material to the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment The top view which shows the state which fixed the trunk edge from the indoor side of the vacuum heat insulating material to the inner wall of the existing building used as the face material of the heat insulating wall of the embodiment The top view which shows the state which fixed the board material to the left half of the trunk edge fixed to the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment The top view which looked at the state which finished fixing the board material to the trunk edge fixed to the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment from the indoor side Sectional drawing which shows the state which has arrange | positioned the 1st vacuum heat insulating material in the row | line | column of the left side of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment Sectional drawing which shows the state which has fixed the 1st vacuum heat insulating material to the column of the left side of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment AA sectional view of FIG. Sectional drawing which shows the state which has arrange | positioned the 2nd vacuum heat insulating material to the center row | line | column of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment Sectional drawing which shows the state which has fixed the 2nd vacuum heat insulating material to the center row | line | column of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment Sectional drawing which shows the state which finished fixing the 2nd vacuum heat insulating material to the center row | line | column of the lower stage of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment BB sectional view of FIG. Sectional drawing which shows the state which is fixing the trunk edge from the indoor side of a vacuum heat insulating material to the inner wall of the existing building used as the surface material of the heat insulating wall of the embodiment DD sectional view of FIG. Sectional drawing which shows the state which has fixed the board material to the left half of the trunk edge fixed to the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment FF sectional view of FIG. GG sectional view of FIG. Sectional drawing which shows the state which has arrange | positioned the 4th vacuum heat insulating material in the column of the left side of the middle step of the inner wall of the existing building used as the surface material of the heat insulating wall of the embodiment Sectional drawing which shows the state which has fixed the 4th vacuum heat insulating material to the column of the left side of the middle step of the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment Sectional drawing which shows the state which finished fixing the 4th vacuum heat insulating material to the column of the left side of the middle step of the inner wall of the existing building used as the surface material of the heat insulating wall of the embodiment CC sectional view of FIG. EE sectional view of FIG. Is a cross-sectional view of FIG. Schematic longitudinal cross-sectional view of the house as an example of the building of Embodiment 2 of this invention Schematic cross section of conventional heat insulation wall

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation wall 2 Inner wall 3 Tucker 4 Vacuum heat insulating material 6 Body edge 8 Board material 10 Thermal welding layer 11 Outer coating material 12 Core material 15 Core material part 16 Thermal welding part 19 Housing 20 Wall 21 Ceiling 22 Floor

Claims (6)

A surface material constituting the interior space, the heat seal layers to each other is disposed on at least a portion of the interior side surface of the solidified inorganic fiber core material between the gas barrier enveloping member that faces is decompressed sealing said surface material The core material is thicker than the thickness of the core material part where the core material is between the vacuum heat insulating material and the jacket material in the vacuum heat insulating material, and the core material is opposed to the vacuum heat insulating material without the core material. The body edge fixed to the face material so as to be in contact with a part of the surface on the indoor side of the heat-welded portion where the jacket materials are heat-welded with each other, and the surface so as to be in contact with the surface on the indoor side of the body edge A board member fixed to the body edge and covering the vacuum heat insulating material and the body edge from the indoor side; and a column on the surface opposite to the indoor side of the face material; at least a part of the vacuum heat insulating material is a fixture A heat insulating wall that is fixed to the column through the heat-welded portion . The heat insulation wall according to claim 1, wherein the trunk edge is made of a resin hard foam heat insulating material or a hard extruded heat insulating material. The heat insulating wall according to claim 1 or 2 , wherein the vacuum heat insulating material is fixed by a member that penetrates the heat welding portion and pierces the face material. The vacuum heat insulating material used for the heat insulation wall as described in any one of Claim 1 to 3. The building which applied the heat insulation wall as described in any one of Claim 1 to 4 to the wall, ceiling, or floor which comprises indoor space. The house which applied the heat insulation wall as described in any one of Claim 1 to 4 to the wall, ceiling, or floor which comprises indoor space.

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