JP2010047902A - Heat insulating wall and building and house having heat insulating wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating wall capable of being easily constructed and achieving excellent heat insulating performance. <P>SOLUTION: The heat insulating wall 1 is constituted by an internal wall 2 of the existing building constituting an indoor space, furring strips 6 fixed on an indoor side face of the internal wall 2, a plurality of vacuum heat insulating materials 4 provided and arranged in parallel to prevent core material parts from being overlapped on at least a part on an indoor side of the internal wall 2, and a board member 8 covering the vacuum heat insulating materials 4 and the furring strips 6 to hide them from an indoor side. An outer periphery thermal depositing portion where there is no core material 12 between outer coverings 11 and opposing outer coverings 11 are mutually and thermally deposited is provided in an outer peripheral part of the vacuum heat insulating material 4 and is overlapped on the outer periphery thermal depositing portion of adjacent vacuum insulating materials 4 in the direction of thickness of the vacuum heat insulating material 4 on the indoor side face of the furring strips 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

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, energy saving of home appliances and industrial equipment as well as energy reduction due to housing are important issues to be tackled. As energy consumption due to housing is greatly affected by cooling and heating operations, it is important to strengthen the insulation of the housing drive. For this reason, various heat insulating walls and various heat insulating materials have been proposed (see, for example, Patent Document 1).

  FIG. 15 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. 15, in the conventional heat insulating structure in Patent Document 1, a plurality of substantially trapezoidal trunk edges 103 are fixed on a base 101 made of an existing wall in which a board 102 is formed on a housing α, and the entire surface of the wall base. The foamed synthetic resin foam 104 is sprayed onto the body edge 103, and a space 105 is formed between the body edges 103, and a waterproof sheet 106 and a dry wall are formed on the body edge 103 by an adhesive tape attached to the surface of the body edge 103. The material 107 is constructed.

  Moreover, a vacuum heat insulating material is generally well known as a high performance heat insulating material (for example, refer patent document 2).

FIG. 16 is a cross-sectional view of a conventional vacuum heat insulating material disclosed in Patent Document 2. As shown in FIG. 16, the vacuum heat insulating material 201 has a plurality of core materials 202 covered with an outer cover material 203, and the core materials 202 are sealed under reduced pressure in spaces independent of each other. A seal portion 204 is provided between the materials 202.
Japanese Patent Laid-Open No. 7-11717 JP 2006-183810 A

  In order to apply the vacuum heat insulating material 201 to a heat insulating wall of a building such as a house, it is important to realize a heat insulating structure that can prevent a vacuum break of the vacuum heat insulating material 201. Consideration should be given to the arrangement method and the arrangement position of the trunk edge 103.

  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 object, the heat insulating wall of the present invention includes a face material constituting an indoor space, a body edge fixed to the indoor side surface of the face material, and a jacket material in which the heat-welded layers face each other. A plurality of vacuum heat insulating materials that are arranged side by side so that the core material portion with the core material does not overlap between at least a part of the interior surface of the face material between the jacket materials. And a board material that covers the vacuum heat insulating material and the trunk edge from the indoor side, and the vacuum heat insulating material is a portion of the outer covering material in a portion where the core material is not provided between the outer covering materials. The outer cover materials of the close contact portions are heat-welded to each other, and the outer peripheral portion of the vacuum heat insulating material has an outer peripheral heat-welded portion in which the outer cover materials are heat-welded, and the outer peripheral heat of the vacuum heat insulating material. In the thickness direction of the outer peripheral heat welded portion of the vacuum heat insulating material and the vacuum heat insulating material adjacent to each other, the body Those that overlap in terms of the indoor side.

  Thereby, the heat insulation wall which can be constructed easily and has good heat insulation performance can be provided.

  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.

  Moreover, the heat insulating wall can be made thin. 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 insulation material before fixing the board material to the body edge can be temporarily fixed until the board material is fixed to the body edge, and the vacuum insulation material before fixing the board material to the body edge. Fixing means can be used for fixing the fixing or bonding function that degrades over time, and there are many options for fixing means, and depending on the choice of fixing means, workability can be improved and costs can be reduced. Become.

  The invention of the heat insulation wall according to claim 1 is provided between a face material constituting an indoor space, a body edge fixed to a room-side surface of the face material, and a jacket material facing the heat-welded layers. A plurality of vacuum heat insulating materials, wherein the core material is sealed under reduced pressure, and is arranged side by side so that the core material portion with the core material does not overlap between the jacket material on at least a part of the interior side of the face material; It is comprised with the board material which covers a vacuum heat insulating material and the said trunk | rim from the indoor side, and the said vacuum heat insulating material is the part which the said jacket materials of the part which does not have the said core material between the said jacket materials mutually adhere The outer cover materials are thermally welded to each other, and the outer peripheral portion of the vacuum heat insulating material has an outer peripheral heat welded portion where the outer cover materials are heat welded, and the outer peripheral heat welded portion of the vacuum heat insulating material is In the thickness direction of the outer peripheral heat welded portion of the adjacent vacuum heat insulating material and the vacuum heat insulating material, the interior side of the trunk edge Those that overlap in terms.

  This makes it possible to obtain a heat insulation wall that can be easily installed and has good heat insulation performance without using foam insulation material that is foamed on-site, and there is no need to dismantle the existing wall when using it as a heat insulation wall. In addition, since it is possible to easily insulate and reinforce at a level close to the replacement of wallpaper, an advantageous effect can be obtained 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. In addition, when the face material on which the vacuum heat insulating material is provided is an existing wall, the projecting dimension of the wall surface toward the indoor side by using the heat insulating wall can be reduced, so that the applicable range without problems is wide and practical.

  In addition, after fixing the board material to the body edge, a part of the heat-welded part of the vacuum insulation material can be sandwiched and fixed between the body edge and the board material, so the vacuum insulation before fixing the board material to the body edge The material can be fixed temporarily until the board material is fixed to the body edge, and time is required for fixing the vacuum insulation material to the body edge or face material before fixing the board material to the body edge. Thus, a fixing means that lowers the function of fixing or bonding 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 costs can be reduced.

  Moreover, the outer peripheral heat welded part of the vacuum heat insulating material hardly exhibits heat insulating performance, but the outer peripheral heat welded part of the adjacent vacuum heat insulating material overlaps, so the area ratio of the outer peripheral heat welded part occupying the heat insulating wall is Since the overlapping part of the outer peripheral heat welded part is formed on the interior side surface of the trunk edge, the ratio of the area covered by the core part (the effective thermal insulation part of the vacuum thermal insulation material) in the part without the trunk edge is mainly reduced. It is possible to provide a heat insulating wall that can be enlarged and has high heat insulating performance.

  In addition, 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 is the outer covering material. Since the core material is heat-welded to the vicinity of the part where the core material is between, the width of the heat-welded part is wider than the vacuum heat-insulating material where only the outer jacket material is heat-welded. Since the contact area with the welded portion can be increased, the contact area between the barrel edge and the heat welded portion can be increased, and the vacuum heat insulating material can be more reliably fixed by the barrel edge and the board material.

  Moreover, if the thermal welding part receives the pressing force received from the trunk edge (and the board material) with a wide contact area, the pressing force per unit area at the contact part between the trunk edge (and the board material) and the thermal welding part becomes small. Therefore, the contact area between the body edge (and board material) and the heat-welded portion can be widened to reduce the possibility of damage to the heat-welded portion of the vacuum heat insulating material due to the body edge (and board material). The part where the materials are in close contact is heat welded to the vicinity of the part where the core material is between the jacket materials, so the heat welded part may be damaged by contact between the body edge (and board material) and the heat welded part. The vacuum heat insulating material is fixed with a member that penetrates the thermal welding portion that is spaced apart from the core material portion by a predetermined distance and penetrates the trunk edge, or the board material is separated from the board material and the core material portion by a predetermined distance or more. Even if it is fixed with a member that penetrates the body edge and penetrates the face material, Since the heat seal parts of the wide enough core side portion could holes remains, less likelihood of insulation performance deterioration of the vacuum heat insulating material, the reliability of the insulation performance is high insulating wall.

  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.

  The invention of the heat insulation wall according to claim 2 is a surface material constituting an indoor space, a plurality of trunk edges fixed to a surface on the indoor side of the surface material, and a jacket material in which the heat-welded layers face each other. A plurality of core members that are sealed in a vacuum, and are arranged in a vertical or horizontal direction so that at least a part of the interior surface of the face material does not overlap the core material portion with the core material between the jacket materials A vacuum heat insulating material, and a board material that covers the vacuum heat insulating material and the body rim from the indoor side, and the vacuum heat insulating material is the outer portion of the core material that is not provided with the core material. The covering materials are in close contact with each other, and the outer covering materials of all the portions in which the covering materials are in close contact with each other are thermally welded, and the outer periphery of the vacuum heat insulating material has the core between the covering materials. There is an outer peripheral heat-welded portion where the outer jacket materials facing each other without any material are heat-welded, and one upper side adjacent in the vertical or horizontal direction Alternatively, the outer peripheral heat welded portion on the lower side or the right side of the vacuum heat insulating material located on the left side is the upper or left side of the outer peripheral heat welded portion and the vacuum heat insulating material on the lower side or the right side of the vacuum heat insulating material. In the thickness direction, the inner edge of the trunk edge overlaps with the surface on the indoor side.

  Thereby, in addition to the effect of the invention in claim 1, since the vacuum heat insulating material is adjacent in the vertical or horizontal direction, the area ratio of the core portion of the vacuum heat insulating material is increased with respect to the surface of the heat insulating wall. It is possible to arrange efficiently so that the heat insulating effect of the heat insulating wall can be improved.

  Generally, the shape of the vacuum insulation viewed from the front is rectangular (or square), and the shape of the wall structure of the building is also rectangular (or square) as viewed from the front, so arrange them vertically or horizontally. Thus, the vacuum heat insulating material can be disposed without any gap with respect to the heat insulating wall.

  In the invention of the heat insulation wall according to claim 3, the trunk edge in the invention according to claim 1 or claim 2 has a thickness equal to or greater than the thickness of the core part of the vacuum heat insulating material, and The core material is disposed so as to be in contact with or close to the surface of the face material constituting the indoor space.

  Thereby, since a trunk edge has thickness more than the thickness of a core material part, a board | substrate material can be constructed in a plane state, without being pressed by the core material part of a vacuum heat insulating material. 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.

  The gap between the face material and the core material part or the gap between the board material and the core material part is preferably 15 mm or less. If the gap is 15 mm or less, convection of air in the gap can be suppressed. It is possible to suppress the deterioration of the heat insulating property of the heat insulating wall due to the convection of the air in the gap.

  In addition, since the vacuum heat insulating material is arranged after fixing the plurality of trunk edges having a thickness equal to or greater than the thickness of the core material portion to the indoor side surface of the face material, particularly when the heat insulating wall is applied to the floor, At the time of construction, the construction worker can construct the heat insulation wall without applying a heavy load (such as weight) to the core part by utilizing the trunk edge.

  The invention of the heat insulation wall according to claim 4 is the invention according to claims 1 to 3, wherein the vacuum heat insulating material is fixed by a member that penetrates the outer peripheral heat welded portion and pierces the trunk edge. is there.

  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 is between the outer covering materials. Since the core material is thermally welded to the vicinity of the core material, the width of the heat-welded part is wider than the vacuum heat-insulated material in which only the outer jacket material is heat-welded, and the body penetrates the heat-welded part. The members (such as nails, screws, and tackers (staplers)) that fix the vacuum heat insulating material to the body edge by piercing the edge penetrate the heat welded part that is more than a predetermined distance away from the core part. Through holes made by a member that fixes the vacuum heat insulating material to the body edge without degrading performance, the heat insulating performance of the vacuum heat insulating material is hardly deteriorated, and it is easy with members such as nails, screws, and tuckers (staplers). The vacuum heat insulating material can be fixed to the trunk edge.

  The invention of the heat insulation wall according to claim 5 is the invention according to claim 4, wherein the board material is fixed by a member that penetrates the board material and the trunk edge portion and pierces the face material, The board material can be fixed more firmly than when the board material is fixed by a member that penetrates the board material and pierces the trunk edge (not through the trunk edge).

  In addition, when the member which fixes board material penetrates a vacuum heat insulating material, it is made to penetrate the heat welding part spaced apart from the core material part more than predetermined spacing.

  The invention of the building according to claim 6 is the one in which the heat insulating wall according to claims 1 to 5 is applied to any of the wall, ceiling, and floor 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.

  According to a seventh aspect of the present invention, the heat insulating wall according to any one of the first to fifth aspects is applied to any one of a wall, a ceiling, and a floor constituting an indoor space. In addition to the effects in the invention of the building, a comfortable space can be realized with a small amount of air conditioning energy (heating and cooling costs).

  Here, the vacuum heat insulating material is a material in which a core material having a high gas phase ratio, which is an aggregate, is covered with a covering material made of a gas barrier film, and the inside of the covering material is sealed in a vacuum state close to vacuum. Yes, it refers to a heat insulating material in which the heat conduction of the gas component is reduced by making the inside of the jacket material in a reduced pressure state close to vacuum.

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

  The material used for the core material is obtained by processing a porous body having a gas phase ratio of about 90% into a sheet or plate, and industrially usable materials include foams, powders, and fiber bodies. . These can use a well-known material according to the use use and required characteristic.

  Among these, as the foam, open-cell bodies such as urethane foam, styrene foam, and phenol foam can be used. In addition, inorganic, organic, and mixtures thereof can be used as the powder, but industrially, powders mainly composed of dry silica, wet silica, pearlite, and the like can be used.

  In addition, inorganic, organic, and mixtures thereof can be used as the fibrous body, but inorganic fibers are advantageous from the viewpoint of cost and heat insulation performance. As an example of the inorganic fiber, a known material such as glass wool, glass fiber, alumina fiber, silica alumina fiber, silica fiber, rock wool, or the like can be used.

  In addition, mixtures of these foams, powders, fiber bodies and the like can also be applied.

  However, it is preferable that the core material has a thickness of about 3 to 12 mm and the gas phase ratio is less likely to be reduced by heat when the jacket materials are thermally welded together.

  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.

  It is desirable that the jacket material used here has such flexibility that wrinkles are not generated in the jacket material when the core material is sealed under reduced pressure.

  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)
1 is a cross-sectional view of a heat insulating wall according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a vacuum heat insulating material used for the heat insulating wall of the same embodiment, and FIG. 3 is a vacuum heat insulating material used for the heat insulating wall of the same embodiment. FIG. 4 is a plan view showing a state in which the vacuum heat insulating material is started to be attached after fixing the trunk edge to the inner wall of the existing building which is the surface material of the heat insulating wall of the embodiment, and FIG. FIG. 6 is a plan view showing a state in which a plurality of vacuum heat insulating materials have been attached to the trunk edge fixed to the inner wall of an existing building which is a heat insulating wall surface material in the form of FIG. The top view which shows the state which fixed the board material to the left half of the inner wall of the existing building which becomes, FIG. 7 is the state which finished fixing the board material to the inner wall of the existing building used as the surface material of the heat insulation wall of the embodiment FIG. 8 shows a state in which the indoor side surface of the board material of the heat insulating wall of the embodiment is covered with wallpaper. It is a to plan view.

  FIG. 9 is a cross-sectional view showing a process of fixing the trunk edge to the inner wall of the existing building which is the face material of the heat insulation wall of the embodiment, and FIG. 10 is an existing face material of the heat insulation wall of the embodiment. Sectional drawing which shows the process of arrange | positioning a vacuum heat insulating material according to a trunk edge on the inner wall of the building of FIG. 11, FIG. 11 is a plurality of the inner wall of the existing building used as a face material of the thermal insulation wall of the embodiment according to a trunk edge. FIG. 12 is a cross-sectional view showing the process of fixing the vacuum heat insulating material, FIG. 12 is a cross-sectional view showing the process of fixing the board material to the inner wall of the existing building that is the face material of the heat insulating wall of the embodiment, and FIG. It is sectional drawing which shows the process of covering the room | chamber interior side surface of the board material of the form of the heat insulation wall with wallpaper.

  As shown in FIGS. 1 to 13, 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 refurbishment portion with a face material constituting an indoor space, and an indoor side of the inner wall 2. A plurality of body edges 6 fixed to the surface by a tucker 5 and a core material 12 are sealed under reduced pressure with a jacket material 11 made of a flexible laminate film having a gas barrier property, and the core material 12 is between the jacket materials 11. A vacuum heat insulating material 4 in which the core member 15 is disposed between the barrel edges 6 adjacent to each other and substantially in contact with the interior side surface of the inner wall 2 and fixed to the barrel edge 6 by the tucker 3; It consists of a board material 8 made of gypsum board fixed to the trunk edge 6 and the inner wall 2 with a nail 7 so as to cover the vacuum heat insulating material 4 from the indoor side, and a wallpaper 9 covering the indoor side surface of the board material 8. . The trunk edge 6 has a thickness equal to or greater than the thickness of the core member 15.

  Here, “substantially contact” refers to a state of almost contact, and refers to a contact state to the extent that it can be confirmed visually.

  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. If the face material of the inner wall 2 does not have a sufficient thickness and the tucker 3 or the nail 7 penetrates the face material of the inner wall 2, the position where the tacker 3 and the nail 7 are driven is set to the position of the face material of the inner wall 2. It is preferable that the column has a column on the back side (inside of the room).

  The vacuum heat insulating material 4 is a rectangular plate-shaped member having a thickness of about 8 mm made of a laminated body of inorganic fibers such as glass fibers between rectangular outer cover materials 11 having gas barrier properties facing the heat welding layers 10. The two core members 12 are arranged at a predetermined distance from each other in a direction substantially perpendicular to the thickness direction, and the core member 12 is positioned between the outer cover members 11 so that each of the two core members 12 is located in an independent space. The outer jacket materials 11 of the portion where the material 12 is not present (including the outer jacket materials 11 between the adjacent core materials 12 and 12) are brought into close contact with each other, and the adhered outer jacket materials 11 are thermally welded together. It is the vacuum heat insulating material 4 which forms the heat welding part 16 and the outer jacket materials 11 of all the parts with which the outer jacket materials 11 closely_contact | adhere are heat-welded.

  Further, there is no core material 12 between the jacket materials 11 in the vacuum heat insulating material 4, and only a part of the heat welded portion 16 in which the facing jacket materials 11 are thermally welded is between the trunk edge 6 and the board material 8. Is located.

  Further, a part of the heat-welded portion 16 in which the jacket materials 11 between the core material portions 15 adjacent to each other in the vacuum heat insulating material 4 are heat-welded is formed between the trunk edge 6 and the board material 8. Located between.

  Further, the vacuum heat insulating material 4 is fixed by a tucker 3 that penetrates the thermal welding portion 16 that is separated from the core portion 15 by a predetermined distance or more and pierces the trunk edge 6.

  Instead of the tucker 5 that penetrates the trunk edge 6 and penetrates the inner wall 2 to fix the trunk edge 6 to the indoor surface of the inner wall 2, an adhesive that fixes the trunk edge 6 to the indoor surface of the inner wall 2. However, in that case, as the tucker 3 for fixing the vacuum heat insulating material 4, the inner wall 2 is pierced through the heat welding portion 16 and the trunk edge 6 which are separated from the core material portion 15 by a predetermined distance or more. It is preferable to use one.

  Further, the board material 8 is fixed by a nail 7 that penetrates the inner wall 2 through the thermal welding portion 16 and the trunk edge 6 that are separated from the board material 8 and the core material portion 15 by a predetermined distance or more.

  Although the thickness of the core material 12 of the vacuum heat insulating material 4 of this embodiment is about 8 mm, the thickness is not limited to about 8 mm, and the thickness may be 3 mm to 10 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 is formed by laminating inorganic fiber aggregates 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) so as to have a predetermined thickness. The material used is heated and pressed under predetermined heating and pressing conditions so that the contact point between the inorganic fibers does not become a cross-linked portion without using a binder and the shape during compression can be maintained. 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. Here, it is desirable that the jacket material has a degree of flexibility that does not cause wrinkles in the jacket material when the core material is sealed under reduced pressure.

  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 heat welding bars over the entire circumference and thermally welded by heat and pressure.

  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 by which the outer peripheral parts of the jacket material 11 which can be made into the outer periphery of the vacuum heat insulating material 4 were heat-welded mutually has a predetermined width around the core material 12 when the width of the outer peripheral fin part is larger than necessary. It cuts off so that the heat welding part in which the jacket materials 11 were heat-welded may remain. At this time, the four corners of the peripheral fin portion of the vacuum heat insulating material 4 are not damaged by the four corners of the peripheral fin portion of the vacuum heat insulating material 4 so as to damage an operator or other members (particularly the other vacuum heat insulating material 4). Is preferably rounded.

  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 lateral direction, and the heat welded portion 16 includes an inter-core heat welded portion 17 having a width of about 27 mm located between the two core material portions 15 and an outer peripheral fin portion ( The outer peripheral heat welded portion 18 having a width of about 21 mm is located on the outer periphery of the two core material portions 15 and the inter-core heat welded portion 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 a plurality of types of vacuum heat insulating materials, or may combine a vacuum heat insulating material with one core material part.

  In the present embodiment, the width of the core-to-core heat welded portion 17 is about 27 mm, and the width of the outer peripheral heat welded portion 18 is about 21 mm. As the thickness increases, it is necessary to increase the width of the inter-core heat welded portion 17 and the outer peripheral heat welded portion 18, and as the width of the inter-core heat welded portion 17 and the outer peripheral heat welded portion 18 decreases, the heat insulating wall 1. The ratio of the core material portion 15 in the heat sink increases and the heat insulation performance of the heat insulating wall 1 is improved, but the end of the outer peripheral heat weld portion 18 or the heat weld portion 16 (inter-core heat weld portion 17 and outer heat weld portion 18). There is a high possibility that the outside air enters the space that seals the core material 12 from the through hole made by the fixing member that penetrates the heat insulating wall 1 and the heat insulating performance of the heat insulating wall 1 (or the vacuum heat insulating material 4) is deteriorated over time. Become. Conversely, the wider the width of the inter-core heat welded portion 17 and the outer peripheral heat welded portion 18, the smaller the proportion of the core material portion 15 in the heat insulating wall 1 and the heat insulating performance of the heat insulating wall 1 decreases. The outside air enters the space that seals the core material 12 through the end of the welded portion 18 or the through hole formed by the fixing member that penetrates the heat welded portion 16 (inter-core heat welded portion 17 and the outer peripheral heat welded portion 18). Thus, the possibility that the heat insulation performance of the heat insulation wall 1 (or the vacuum heat insulating material 4) is lowered with the passage of time is reduced.

  Hereinafter, the procedure of making the inner wall 2 of the existing building which becomes the heat insulation renovation site into the heat insulation wall 1 of the present embodiment will be described with reference to FIGS. 4 to 13.

  First, as shown in FIG. 4 and FIG. 9, the horizontal direction is aligned with the upper and lower edges of the indoor side surface of the inner wall 2 of the existing building 2 which is a heat insulation repair site with the face material constituting the indoor space. A body edge 6 having a width of about 15 mm and a thickness that is the same as or slightly thicker than the core material part 15 of the vacuum heat insulating material 4 is disposed in the (left-right direction). Fix with the tucker 5 that pierces 2.

  Also, in the vertical direction (up and down) according to the interval of the trunk edge 6 fixed to the upper and lower edges, on the left and right edges of the indoor side surface of the inner wall 2 of the existing building 2 that becomes the heat insulation repair site with the face material constituting the indoor space The body edge 6 made of a foam heat insulating material having a width of about 15 mm and a thickness that is the same as or slightly thicker than the core material part 15 of the vacuum heat insulating material 4 is disposed in the direction) and penetrates the body edge 6. Then, it is fixed with a tucker 5 that pierces the inner wall 2.

  Moreover, it fixed to the upper and lower edges at the part surrounded by the upper and lower right and left edges of the indoor side surface of the inner wall 2 of the existing building that becomes the heat insulation repair site with the face material constituting the indoor space. Foam heat insulating material which is long in the vertical direction (vertical direction) according to the interval between the trunk edges 6 and is the same thickness as the core material portion 15 of the vacuum heat insulating material 4 or slightly thicker than the core material portion 15 and has a width of about 15 mm and about 30 mm. The trunk edges 6 are alternately arranged and fixed by a tucker 5 penetrating the inner wall 2 through the trunk edges 6.

  The body edge 6 having a width of about 30 mm is provided on the left outer periphery of the vacuum heat insulating material 4 on the left side of the vacuum heat insulating material 4 adjacent to the left and right sides and on the left outer periphery of the other right vacuum heat insulating material 4. It is used when fixing the overlapping part of the heat welding part 18.

  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.

  When the trunk edge 6 is fixed by the tucker 5, the line connecting the two tip portions of the tucker 5 is substantially parallel to the longitudinal direction of the trunk edge 6. In addition, the inner wall 2 is driven so that the tucker 5 is perpendicular to the inner wall 2.

  At this time, the interval between the plurality of trunk edges 6 arranged in the left-right direction is about 2 to 10 mm wider than the left and right dimensions of one core member 15 of the vacuum heat insulating material 4.

  In addition, the position where the tucker 5 is driven is set at a position spaced apart from the position where the tucker 3 is driven later and the position where the nail 7 is driven later.

  Next, as shown in FIGS. 4 and 10, the vacuum insulating material 4 shown in FIG. 3 from the corner (for example, the lower left corner) of the inner wall 2 of the existing building, the core portion 15 extends in the lateral direction (left and right). 10), one side of the core member 15 is substantially in contact with the indoor side surface of the inner wall 2 as shown in FIG. 10, and the inter-core heat weld portion 17 and the outer peripheral heat weld portion 18 are in the body. The inter-core heat welding portion 17 and the outer peripheral heat welding portion 18 are bent so as to widely contact the indoor side surface of the edge 6 and the installation position is determined, and one side of the core material portion 15 is placed on the indoor side surface of the inner wall 2. While holding down the vacuum heat insulating material 4 by hand so as not to move in a substantially contacted state, the core material portion comes into contact with the inner side surface of the body edge 6 on the center line of the inter-core heat weld portion 17 and the outer peripheral heat weld portion 18. A portion (a central portion in the width direction of the portion of the outer peripheral heat-welded portion 18 that is in close contact with the trunk edge 6) that is a predetermined distance away from 15 is a tucker 3. It is fixed to the edge 6.

  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.

  At this time, vacuum insulation is performed in advance so that protrusions on the surface of the inner wall 2 of the existing building and foreign matter adhering to the surface of the inner wall 2 do not damage the outer covering material 11 of the core portion 15 that substantially contacts the inner wall 2. It is desirable that the surface on which the material 4 is disposed be a smooth surface.

  Thereafter, similarly, as shown in FIGS. 4, 5, and 11, the next vacuum heat insulating material 4 is stacked in the step direction (upward direction) so as to overlap with the previously fixed vacuum heat insulating material 4 and the outer peripheral heat welded portion 18. ) And laterally fix with the tucker 3. In this Embodiment, as shown in FIG. 5, the vacuum heat insulating material 4 is fixed to the trunk edge 6 with the tucker 3 over 3 steps | paragraphs and 4 rows.

  Here, the portion of the vacuum heat insulating material 4 where the vertical outer peripheral heat welded portion 18 overlaps is formed on the interior side surface of the trunk edge 6 formed in the vertical direction.

  In addition, when the vacuum heat insulating material 4 is fixed to the trunk edge 6 with the tucker 3 that penetrates the thermal welding portion 16 and pierces the trunk edge 6, care should be taken that the tucker 3 does not contact the tucker 5. To prevent the tucker 3 from coming into contact with the tucker 5, the positions of the tucker 5 and the tucker 3 are determined in advance, and the tucker 5 and the tucker 3 are driven according to the rules, or after the tucker 5 is driven, A mark indicating the position of the tucker 5 or a mark indicating the position where the tucker 3 should be driven may be attached to the heat welded portion 16, and the tucker 3 may be driven based on the mark attached to the heat welded portion 16.

  In this embodiment, the vacuum heat insulating material 4 at each stage is driven by two tuckers 3 into the inter-core heat welded portion 17 and the left and right outer peripheral heat welded portions 18, and the lower vacuum heat insulating material 4 is A total of four tuckers 3 are driven into the outer peripheral heat welded portion 18 at two locations below each core member 15, and the upper vacuum heat-insulating member 4 also has an upper outer peripheral heat welded portion 18 formed of each core member 15. A total of four tuckers 3 are driven in two places on the upper side.

  Further, the position of the tucker 5 of the trunk edge 6 fixed to the upper and lower edges of the indoor side surface of the inner wall 2 is set to a position intersecting with a line that bisects each core member portion 15 to the left and right. The position of the tucker 3 that is driven in two places above or below the material portion 15 is shifted in the left-right direction from the position of the tucker 5 of the trunk edge 6 fixed to the upper and lower edges of the indoor side surface of the inner wall 2.

  Moreover, the position of the tucker 5 which fixes the long trunk edge 6 arrange | positioned between the trunk edges 6 fixed to the upper and lower edges of the indoor side surface of the inner wall 2 is each core part. The position of the tucker 3 that is driven near the center in the vertical direction of each core member 15 on the left or right side of the corner portion 15 and is driven into the inter-core heat welded portion 17 and the left and right outer peripheral heat welded portions 18 in two places The core members 15 are shifted toward the center in the vertical direction from the position of the tucker 5 of the trunk edge 6 that is long in the direction (vertical direction).

  In addition, the surface in contact with the vacuum heat insulating material 4 at the trunk edge 6 is preliminarily vacuum insulated so that the vacuum heat insulating material 4 is not damaged by protrusions on the surface of the trunk edge 6 or foreign matter adhering to the surface of the trunk edge 6. It is desirable to have a smooth surface in contact with the material 4.

  Next, as shown in FIGS. 6, 7, and 12, the size of a predetermined dimension (in the present embodiment, the existing building to be a heat insulation refurbishment site) so as to cover the vacuum heat insulating material 4 from the indoor side. Two pieces of board material 8 made of gypsum board that has been cut into two halves of the inner wall 2 (the size of the heat insulation wall 1 is divided into left and right parts) penetrate the board material 8 and the trunk edge 6. And fix with the nail 7 which pierces the inner wall 2.

  In addition, the position where the nail 7 is driven in the board material 8 is limited to a position where the nail 7 can penetrate substantially the center of the trunk edge 6 in the width direction. Specifically, the four corners of the board material 8 and the board material A vertical trunk (vertical direction) that is long between a position that divides the upper and lower edges of 8 into four equal parts in the left-right direction and a trunk edge 6 that is fixed to the upper and lower edges of the inner surface of the inner wall 2. 6 and the line that divides the board material 8 into three equal parts in the vertical direction. The tucker 3 and the tucker 5 are driven away from the position satisfying this condition. There is no collision with Tucker 5.

  When the core material portion 15 of the vacuum heat insulating material 4 is in contact with the board material 8, the outer cover material 11 of the core material portion 15 is formed by protrusions on the surface of the board heat material 8 on the vacuum heat insulating material 4 side or foreign matter adhering to the surface. It is desirable that the surface of the board material 8 on the side of the vacuum heat insulating material 4 is made smooth in advance so as not to be damaged.

  Next, as shown in FIGS. 8 and 13, the inner surface of the board material 8 is covered with wallpaper 9 so that the joints of the nails 7 and the board material 8 are not visible.

  In the present embodiment, the trunk edge 6 is fixed to the inner wall 2 by the tucker 5, but nails or screws may be used instead. Moreover, although the board | plate material 8 is being fixed to the trunk edge 6 and the inner wall 2 with the nail 7, a tucker and a screw may be used instead.

  The heat insulating wall 1 according to the present embodiment includes a face material (inner wall 2) constituting an indoor space, a plurality of trunk edges 6 fixed to the indoor side surface of the face material (inner wall 2), and the heat welding layers 10 The core material 12 is sealed under reduced pressure between the jacket materials 11 having gas barrier properties facing each other, and the core material portion 15 has the core material 12 between the jacket materials 11 in at least a part of the interior side of the inner wall 2. Are formed of a plurality of vacuum heat insulating materials 4 arranged side by side so as not to overlap each other, and a board material 8 that covers the vacuum heat insulating materials 4 and the trunk edge 6 from the indoor side. The outer jacket material 11 in a portion where the core material 12 is not present is closely adhered to each other, and the outer jacket materials 11 of all the portions in which the outer jacket materials 11 are in close contact with each other are thermally welded. In the portion, there is an outer peripheral heat welded portion 18 in which there is no core material 12 between the jacket materials 11 and the opposite jacket materials 11 are thermally welded to each other. , In which the outer peripheral heat weld portion 18 of the vacuum heat insulating material 4 in the thickness direction of the outer peripheral heat weld portion 18 and the vacuum heat insulating material 4 of the vacuum heat insulating material 4 adjacent overlaps in terms of the indoor side of the furring strip 6.

  This makes it possible to obtain a heat insulation wall 1 that can be easily constructed and has good heat insulation performance without using a foam heat insulation material that is foamed on site. When the existing wall is used as the heat insulation 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, since the vacuum heat insulating material 4 is very excellent in heat insulation performance compared with 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 can be thinned. Further, when the inner wall 2 on which the vacuum heat insulating material 4 is provided is an existing wall, since the projecting dimension of the wall surface toward the indoor side by using the heat insulating wall can be reduced, the applicable range without problems is wide and practical.

  In addition, after the board material 8 is fixed to the trunk edge 6, a part of the heat welding portion 16 of the vacuum heat insulating material 4 can be sandwiched and fixed between the trunk edge 6 and the board material 8. The fixing of the vacuum heat insulating material 4 before being fixed to 6 can be temporarily fixed until the board material 8 is fixed to the trunk edge 6, and the vacuum insulating material 4 before the board material 8 is fixed to the trunk edge 6. For fixing to the body edge 6 or the inner wall 2, a fixing means that reduces the function of fixing or bonding over time can be used, and there are many options for the fixing means. Improvement and cost reduction.

  Moreover, although the outer periphery heat welding part 18 of the vacuum heat insulating material 4 hardly expresses heat insulation performance, since the outer periphery heat welding part 18 of the adjacent vacuum heat insulating material 4 overlaps, the outer periphery heat welding part which occupies for the heat insulating wall 1 is overlapped. When the area ratio of the portion 18 is decreased, the overlapping portion of the outer peripheral heat-welded portion 18 is formed on the interior side surface of the trunk edge 6, so that the core portion 15 (vacuum heat insulating material The ratio of the area covered by the effective heat insulating portion) can be increased, and the heat insulating wall 1 having high heat insulating performance can be provided.

  In addition, the vacuum heat insulating material 4 used for this invention is the vacuum heat insulating material 4 by which the outer jacket materials 11 of all the parts with which the outer jacket materials 11 adhere are heat-welded, and the outer jacket materials 11 adhere. Since the portion is thermally welded to the vicinity of the portion where the core material 12 is between the jacket materials 11, compared with the vacuum heat insulating material 4 in which only the jacket materials 11 in the outer peripheral portion are thermally welded together, Since the contact area between the body edge 6 and the heat-welded portion 16 can be widened due to its wide width, the contact area between the body edge 6 and the heat-welded section 16 is widened so that the body edge 6 and the board material 8 provide vacuum insulation. The material 4 can be fixed more reliably.

  Moreover, if the thermal welding part 16 receives the pressing force received from the trunk edge 6 (and the board material 8) in a wide contact area, the unit area per unit area at the contact part between the trunk edge 6 (and the board material 8) and the thermal welding part. Since the pressing force is reduced, the contact area between the body edge 6 (and the board material 8) and the heat welding part 16 is widened, and the heat welding part 16 of the vacuum heat insulating material 4 is damaged by the body edge 6 (and the board material 8). Since the portion where the jacket 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 jacket materials 11, the trunk edge 6 (and the board material) 8) a member that is damaged by contact between the heat-welded portion 16 and the heat-welded portion 16, or penetrates the heat-insulating portion 16 that is more than a predetermined distance away from the core material portion 15 through the heat-insulating portion 16 and pierces the body edge 6. The heat welding part 16 which fixed the board | substrate material 8 apart from the board | substrate material 8 and the core material part 15 more than predetermined spacing. Even when fixed by a member that penetrates the trunk edge 6 and penetrates the inner wall 2, the heat welded portion 16 having a sufficient width remains on the core material 12 side of the damaged portion of the heat welded portion 16 or the portion where the through hole is formed. There is little possibility of the heat insulation performance deterioration of the vacuum heat insulating material 4, and it becomes the heat insulation wall 1 with high reliability of heat insulation performance.

  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 present and the trunk edge 6 is narrowed, there is little possibility that the heat insulating performance of the vacuum heat insulating material 4 is deteriorated due to damage of the outer cover material 11. The portion between the core member) and the body edge is narrowed to increase the coverage of the core member 12 which is the effective heat insulating portion of the vacuum heat insulating material 4 in the heat insulating wall 1 to thereby insulate the entire heat insulating wall 1. Performance can be increased.

Moreover, a part of the heat welding part 16 (heat-welding part 17 between core materials) by which the jacket material 11 between the core material parts 15 and the core material part 15 which adjoin each other in the vacuum heat insulating material 4 was heat-welded. Since it is located between the trunk edge 6 and the board material 8, the heat welding portion 16 (between core materials) in which the jacket materials 11 between the core material portion 15 and the core material portion 15 adjacent to each other are welded together. The heat welding part 17) can be used effectively, and the heat welding part 16 (inter-core heat welding part 17) in which the jacket materials 11 between the core material part 15 and the core material part 15 adjacent to each other are welded. Compared with the case where it is not located between the trunk edge 6 and the board material 8, the ratio of the area covered by the core part 15 (the effective thermal insulation part of the vacuum thermal insulation material 4) in the part where the trunk edge 6 is not present can be increased. The heat insulating wall 1 with high heat insulating performance can be provided.
In addition, the use of gypsum board for the board material 8 has the effect of being inexpensive and having excellent fire resistance (the effect of being able to reduce the cost of heat insulation repair and to prevent the spread of fire in the event of a fire) Is obtained. Further, even when a person or an object comes into contact with the heat insulating wall 1, the gypsum board has sufficient thickness and rigidity, and therefore the bag breakage of the vacuum heat insulating material 4 disposed inside the gypsum board due to the impact or the like. The effect which can prevent is acquired.

  Moreover, the heat insulation wall 1 of this Embodiment is the surface material (inner wall 2) which comprises indoor space, the several trunk edge 6 fixed to the surface by the side of the room | chamber interior (inner wall 2), and a heat welding layer. A core material 12 is sealed under reduced pressure between a gas barrier and flexible outer cover material 10 facing each other, and the core 12 is provided between the outer cover material 11 in at least a part of the inner side of the inner wall 2. A plurality of vacuum heat insulating materials 4 arranged side by side in the vertical or horizontal direction so that the material portions 15 do not overlap with each other, and a board material 8 that covers the vacuum heat insulating materials 4 and the trunk edge 6 from the indoor side. In the material 4, the portions of the outer covering material 11 that do not have the core material 12 between the outer covering materials 11 are closely adhered to each other, and all the outer covering materials 11 in which the outer covering materials 11 are in close contact with each other are thermally welded. In addition, there is no core material 12 between the outer jacket materials 11 on the outer peripheral portion of the vacuum heat insulating material 4, and the outer jacket materials 11 facing each other are heated. There is an outer peripheral heat welded portion 18 attached, and the lower or right outer peripheral heat welded portion 18 located on one upper or left side adjacent in the vertical or horizontal direction is located on the lower or right side of the other. In the thickness direction of the vacuum heat insulating material 4 on the upper or left side of the vacuum heat insulating material 4 to be overlapped with the surface on the indoor side of the trunk edge 6.

  Thereby, the vacuum heat insulating material 4 is adjacent in the vertical or horizontal direction, the shape seen from the front direction of the vacuum heat insulating material 4 is rectangular, the shape of the wall surface constituting the indoor space is also rectangular from the front direction, By arranging in a vertical or horizontal direction, the vacuum heat insulating material can be arranged without any gap with respect to the heat insulating wall, and the inner wall 2 can be efficiently arranged so that the area ratio of the core part 15 of the vacuum heat insulating material 4 can be increased. It is possible to improve the heat insulation effect of the inner wall 2.

  Moreover, in this Embodiment, the thickness of the trunk | drum 6 is more than the thickness of the core material part 15 in the vacuum heat insulating material 4, and the core material 12 of the vacuum heat insulating material 4 is on the surface of the inner wall 2 which comprises indoor space. It is arrange | positioned so that it may contact or adjoin.

  Thereby, the board | plate material 8 can be constructed in a planar state, without the board | plate material 8 being pressed by the core material part 15 of the vacuum heat insulating material 4. FIG. 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.

  The gap between the face material (inner wall 2) and the core member 15 or the gap between the board member 8 and the core member 15 is preferably 15 mm or less, and if the gap is 15 mm or less, the gap Air convection can be suppressed, and deterioration of the heat insulating property of the heat insulating wall 1 due to air convection in the gap can be suppressed.

  Further, the core member 15 is located in a space formed by the face member (inner wall 2), the board member 8, and the trunk edge 6, and a part of the heat-welded portion 16 is at least one of the indoor side surfaces of the trunk edge 6. Since the vacuum heat insulating material 4 is arranged so as to cover the portion, the ratio of the area covered by the core material portion 15 (the effective heat insulating portion of the vacuum heat insulating material 4) in the portion where there is no trunk edge 6 can be increased, and heat insulation with high heat insulating performance Wall 1 can be provided.

  Moreover, since the vacuum heat insulating material 4 is arrange | positioned after fixing the several trunk edge 6 of the thickness more than the thickness of the core material part 15 to the indoor surface of a face material (inner wall 2), especially the heat insulating wall 1 is a house ( When applying to the floor of a building), the construction worker constructs the heat insulation wall 1 without applying a heavy load (weight, etc.) to the core portion 15 by using the trunk edge 6 when constructing the heat insulation wall 1. it can.

  Moreover, in this Embodiment, although the vacuum heat insulating material 4 is fixed with the member (Tucker 3) which penetrates the thermal welding part 16 spaced apart from the core part 15 more than predetermined interval, and pierces the trunk edge 6, The vacuum heat insulating material 4 used in the 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, and a portion in which the outer 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 jacket materials 11, so that the width of the heat welded portion 16 is larger than that of the vacuum heat insulating material in which only the jacket materials 11 of the outer peripheral portion are thermally welded. A member (a nail, a screw, a tucker (stapler), etc.) for fixing the vacuum heat insulating material 4 to the body edge 6 by penetrating the heat welding part 16 and sticking to the body edge 6 is more than a predetermined distance from the core material part 16. Since it penetrates the remote heat welding part 16, the heat insulation performance of the vacuum heat insulating material 4 is low. The through-hole made by the member that fixes the vacuum heat insulating material 4 to the body edge 6 is hardly deteriorated, and the heat insulating performance of the vacuum heat insulating material 4 is hardly deteriorated, and it is easy to use a member such as a nail, a screw, a tucker (stapler), etc. The vacuum heat insulating material 4 can be fixed to the trunk edge 6.

  In the present embodiment, the board material 8 is fixed by a member (nail 7) that penetrates the board material 8 and the trunk edge 6 and pierces the face material (inner wall 2). The board material 8 can be fixed more firmly than the case where it is fixed by a member that penetrates the material 8 and pierces the trunk edge 6 (does not penetrate the trunk edge 6).

(Embodiment 2)
FIG. 14 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) 20 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 according to 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 20, 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.

  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 renovation) without dismantling the inner wall of an existing building to make a heat insulating wall, 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 heat insulation wall in Embodiment 1 of this invention 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 has started attaching the vacuum heat insulating material after fixing a trunk edge to the inner wall of the existing building used as the surface material of the heat insulating wall of the embodiment The top view which shows the state which completed the installation of the several vacuum heat insulating 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 The top view which shows the state which fixed the board material to the left half 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 finished fixing board 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 covered the indoor side surface of the board material of the heat insulation wall of the embodiment with wallpaper Sectional drawing which shows the process of fixing a trunk edge to 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 process of arrange | positioning a vacuum heat insulating material according to a trunk edge to 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 process of fixing a some 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 according to a trunk edge Sectional drawing which shows the process of fixing board material to the inner wall of the existing building used as the face material of the heat insulation wall of the embodiment Sectional drawing which shows the process of covering the indoor side surface of the board material of the heat insulation wall of the embodiment with wallpaper Schematic longitudinal sectional view of a house as an example of a building in Embodiment 2 of the present invention Schematic cross-sectional view of conventional heat insulation wall Cross section of conventional vacuum insulation

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation wall 2 Inner wall 3 Tucker 4 Vacuum heat insulating material 5 Tucker 6 Trunk edge 7 Nail 8 Board material 10 Thermal welding layer 11 Outer material 12 Core material 15 Core material part 16 Thermal welding part 19 Housing 20 Wall 21 Ceiling 22 Floor

Claims (7)

The core material is sealed under reduced pressure between the face material constituting the indoor space, the body edge fixed to the indoor side surface of the face material, and the outer cover material facing the heat-welded layers, and the indoor side of the face material A plurality of vacuum heat insulating materials provided in a line so that a core material portion having the core material does not overlap between at least a part of the jacket material, and the vacuum heat insulating material and the trunk edge are covered from the indoor side. Consists of board material to hide,
In the vacuum heat insulating material, the outer cover materials in a portion where the outer cover materials are in close contact with each other in a portion where the core material is not present between the outer cover materials are thermally welded to each other on the outer peripheral portion of the vacuum heat insulating material. Has an outer peripheral heat welded portion where the jacket materials are heat welded to each other,
The heat insulation wall which the said outer periphery heat welding part of the said vacuum heat insulating material has overlapped with the said outer peripheral heat welding part of the said adjacent vacuum heat insulating material in the thickness direction of the said vacuum heat insulating material on the surface of the inner side of the said trunk edge. The core material is sealed under reduced pressure between the face material constituting the indoor space, the body edge fixed to the indoor side surface of the face material, and the outer cover material facing the heat-welded layers, and the indoor side of the face material A plurality of vacuum heat insulating materials arranged in a vertical or horizontal direction so that a core material portion with the core material does not overlap between at least a part of the jacket material, the vacuum heat insulating material, and the trunk edge, With board material that covers the interior from the inside,
In the vacuum heat insulating material, the outer cover materials of the portion in which the outer cover materials in a portion where the core material is not provided between the outer cover materials are in close contact with each other are thermally welded, and the outer peripheral portion of the vacuum heat insulating material is provided. Has an outer peripheral heat welded portion where the jacket materials are heat welded to each other,
The outer peripheral heat welded portion on the lower side or the right side of the vacuum heat insulating material located on one upper side or the left side adjacent in the vertical or horizontal direction is located on the upper side or the left side of the vacuum heat insulating material located on the lower side or the right side of the other. The heat insulation wall which overlaps with the surface of the inner periphery side of the said trunk edge in the thickness direction of an outer periphery heat welding part and the said vacuum heat insulating material.   The trunk edge has a thickness equal to or greater than the thickness of the core portion of the vacuum heat insulating material, and the core material of the vacuum heat insulating material is in contact with or close to the surface of the face material constituting the indoor space. The heat insulation wall of Claim 1 or Claim 2 arrange | positioned.   The heat insulation wall according to any one of claims 1 to 3, wherein the vacuum heat insulating material is fixed by a member that penetrates the outer peripheral heat welding portion and pierces the trunk edge.   The said board | substrate material is a heat insulation wall of Claim 4 fixed by the member which penetrates the said board | plate material and the said trunk edge, and pierces the said face material.   The building which applied the heat insulation wall as described in any one of Claims 1-5 to the wall, ceiling, or floor which comprises indoor space.   A house in which the heat insulating wall according to any one of claims 1 to 5 is applied to any one of a wall, a ceiling, and a floor constituting an indoor space.

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