JP2023154815A - Heat insulating wall structure - Google Patents

Abstract

To provide a heat insulating wall structure which has a wall material layer formed of a wall panel fitted to a skeleton by a rocking construction method and a heat insulating layer, which is formed by laminating multiple heat insulating layers in the thickness direction, and which suppresses peeling and damage of the heat insulating plates, when fluctuation or displacement of the heat insulating plates occurs due to vibration of the skeleton, by preventing movement of humidity and moisture from one side of the wall to the other side.SOLUTION: A first heat insulating laminate 21 is formed by laminating, in a thickness direction, heat insulating plates 21a, 21b with different length in the width direction of a wall panel 11. The heat insulating plate 21a of the wall panel 11 side is bonded to the wall panel 11. In a gap between the adjacent two first heat insulating laminates 21, 21, a second heat insulating laminate 22 formed by laminating, in a thickness direction, heat insulating plates 22a, 22b with different length in the width direction of the wall panel 11 is non-bondedly engaged with the first heat insulating laminate 21 and the wall panel 11 to form a heat insulating layer 20.SELECTED DRAWING: Figure 1

Description

The present invention relates to a heat insulating wall structure having a wall panel attached to a structural frame such as a steel frame by a locking construction method and a heat insulating layer.

Conventionally, in external wall structures in which wall panels made of concrete or cement are attached to the building frame, the rocking construction method has been used as a means to prevent damage or collapse of the wall by making the wall follow the behavior and deformation of the building due to earthquakes etc. Are known.

Patent Document 1 describes a heat insulating wall structure in which a heat insulating plate is bonded to a concrete molded plate attached to a building frame using a rocking construction method, in which easily compressible parts are provided at both ends of the heat insulating plate in the width direction of the concrete formed plate, and the concrete is compressed by the shaking of the building frame. A configuration has been disclosed in which when the molded plate swings or is displaced, the pressing force between adjacent heat insulating plates is absorbed by the easily compressible portion, thereby preventing the heat insulating plates from peeling off or being damaged.

JP2009-221820A

The heat insulating wall structure disclosed in Patent Document 1 has a structure in which heat insulating boards are glued one by one to concrete molded boards as a heat insulating layer, and since a heat insulating board is glued to each concrete molded board, the heat insulating boards are glued together. Easily follows the shaking or displacement of concrete forming plates.

FIG. 8 is a cut end view in the thickness direction and the width direction of the wall panel, schematically showing an example of a conventional heat insulating wall structure. In FIG. 8, 60 is a wall material layer, 61 is a wall panel, 61a is a hollow part of the wall panel 61, 70 is a heat insulating layer, 71a and 71b are heat insulating plates, and 80a and 80b are adhesive layers.

When laminating multiple heat insulating boards to form a thick heat insulating layer in order to improve heat insulating performance, as shown in FIG. Although it is bonded through the layer 80a, the second layer heat insulating board 71b is bonded with the boundary between the adjacent heat insulating board 71b shifted from the first layer boundary in the width direction of the wall panel 61 (in the left-right direction in the drawing). be done. This is one space across the wall through the boundary between wall panels 61, 61, the boundary between heat insulating plates 71a, 71a, and the boundary between 71b, 71b, which are adjacent in the width direction of wall panel 61. This is to prevent moisture and moisture from moving from one space to another.

As shown in FIG. 8, if the first and second layers of heat insulating plates 71a and 71b are stacked alternately, the boundary of the first insulating plate 71a will be fixed by the second insulating plate 71b. Therefore, when the wall panel 61 swings or is displaced, it is difficult for the first layer heat insulating board 71a to follow the wall panel 61. Furthermore, when the first layer of heat insulating board 71a follows the wall panel 61, the ends of the two heat insulating boards 71a are shifted from each other across the boundary, so that they are not bonded to the heat insulating board 71a via the adhesive layer 80b. The second layer of heat insulating board 71b may be damaged near the boundary of heat insulating board 71a.

An object of the present invention is to create a heat-insulating wall structure that includes a wall material layer made of wall panels attached to a building frame using a rocking construction method, and a heat-insulating layer, where the heat-insulating layer is formed by laminating a plurality of heat-insulating panels in the thickness direction. To prevent the movement of moisture and moisture from one side of the wall to the other, and to suppress the peeling and damage of the insulation board when the wall panel swings or shifts due to the shaking of the building frame. It is in.

The present invention provides a heat insulating wall structure comprising a wall material layer consisting of a plurality of wall panels attached to a building frame by a rocking construction method, and a heat insulating layer disposed on at least one surface side of the wall material layer. ,
The heat insulating layer has a heat insulating laminate made up of a plurality of heat insulating plates stacked in the thickness direction, at least in the width direction of the wall panel,
at least a portion of the insulation laminate is adhered to the wall panel;
In the width direction of the wall panel, each of the heat insulating laminates bonded to the wall panel is bonded to one of the wall panels,
In the cross section of the wall panel in the width direction, the boundary between two adjacent heat insulating laminates is non-linear and non-adhesive.

The present invention includes the following configurations as preferred embodiments.
[1] The heat insulating layer is a first heat insulating laminate in which the length of the heat insulating board on the side of the wall panel is longer than the length of the heat insulating board on the side away from the wall panel in the cross section in the width direction of the wall panel. and a second heat insulating laminate in which the length of the heat insulating board on the side of the wall panel is shorter than the length of the heat insulating board on the side away from the wall panel,
In the width direction of the wall panel, each of the first heat-insulating laminates is adhered to one wall panel, and the second heat-insulating laminate is disposed between two adjacent first heat-insulating laminates. are fitted, and the second heat-insulating laminate is not bonded to at least one of the two adjacent first heat-insulating laminates and the wall panel.
[2] The heat insulating laminate is composed of a plurality of heat insulating plates having a width equal to the width of the wall panel.
[3] In [2] above, both ends of the plurality of heat insulating plates are offset from each other in the width direction of the wall panel.
[4] In the above [2], in the width direction of the wall panel, the heat insulating laminate has a convex portion at one end and a concave portion corresponding to the convex portion at the other end, and the convex portion and the The recesses fit into each other.
[5] In [2] above, the heat insulating laminate has recesses at both ends in the width direction of the wall panel, and heat insulating blocks fit into the recesses across two adjacent heat insulating laminates. has been done.
[6] In [3] to [5] above, on the wall material layer side, the boundary between the two adjacent heat insulating laminates corresponds to the boundary between the two adjacent wall panels.

In the present invention, the heat insulating layer is constructed by using a plurality of heat insulating laminates formed by laminating a plurality of heat insulating panels, and since the interface between two adjacent heat insulating laminates is non-linear, the wall The movement of moisture or moisture from one side to the other is prevented. In addition, each of the multiple heat-insulating laminates bonded to a wall panel is only bonded to one wall panel, and the interface between two adjacent heat-insulating laminates is not bonded, so the wall panel may swing or The heat insulating laminate bonded to the wall panel easily follows the displacement and there is no risk of peeling or damage.
Therefore, according to the present invention, a heat insulating wall structure is provided which has high heat insulation performance and earthquake resistance, and is also excellent in moisture and water barrier properties.

A cut end view in the width direction of a wall panel, schematically showing the configuration of an embodiment of the heat insulating wall structure of the present invention, and a cut end view in the width direction of the wall panel of a heat insulating laminate constituting the heat insulating wall structure. It is. FIG. 2 is a cross-sectional end view of the wall panel in the width direction, showing the manufacturing process of the heat insulating wall structure of FIG. 1 . A cut end view in the width direction of a wall panel, schematically showing the configuration of another embodiment of the heat insulating wall structure of the present invention, and a cut end view in the width direction of the wall panel of a heat insulating laminate constituting the heat insulating wall structure. It is a diagram. A cut end view in the width direction of a wall panel, schematically showing the configuration of another embodiment of the heat insulating wall structure of the present invention, and a cut end view in the width direction of the wall panel of a heat insulating laminate constituting the heat insulating wall structure. It is a diagram. A cut end view in the width direction of a wall panel, schematically showing the configuration of another embodiment of the heat insulating wall structure of the present invention, and a cut end view in the width direction of the wall panel of a heat insulating laminate constituting the heat insulating wall structure. It is a diagram. FIG. 6 is a cross-sectional end view of the wall panel in the width direction, schematically showing another example of the shape of the end portion of the heat insulating laminate of the wall heat insulating structure shown in FIGS. 4 and 5. FIG. FIG. 2 is a diagram schematically showing how an exterior wall panel attached to a building frame using the rocking construction method follows the behavior and deformation of the frame. FIG. 2 is a cross-sectional end view of a wall panel in the width direction, schematically showing the configuration of a conventional heat insulating wall structure.

The heat insulating wall structure of the present invention includes a wall material layer made up of a plurality of wall panels attached to a frame using a rocking construction method, and a heat insulating layer made up of a plurality of heat insulating plates. The heat insulating layer has a plurality of heat insulating laminates laminated in the thickness direction at least in the width direction of the wall panel, and at least a part of the heat insulating laminate is bonded to the wall panel to provide heat insulation. The layer and the wall material layer are integrated. Furthermore, the heat insulating laminates bonded to the wall panels are each bonded to one wall panel, and the boundary between two adjacent heat insulating laminates is non-linear in the stacking direction and non-bonded. characterized by something.

Hereinafter, the heat insulating wall structure of the present invention will be explained in detail with reference to the drawings. The scope of the present invention includes modifications and improvements made to the embodiments described below based on the common knowledge of those skilled in the art without departing from the spirit of the present invention. included. In addition, in the drawings attached to this specification, only main structural members according to the present invention are shown, and illustration of other structural members is omitted for convenience.

[Embodiment 1]
First, the locking construction method will be explained. The rocking construction method is a method of attaching wall panels so that they can swing or be displaced as the building frame shakes. Wall panels are generally rectangular, and there are two types: vertical paneling, in which the longitudinal direction is arranged parallel to the vertical direction, and horizontal paneling, in which the longitudinal direction is arranged parallel to the horizontal direction. Hereinafter, an example of a configuration in which wall panels are installed vertically and attached to a foundation and a beam will be explained.

With the longitudinal direction of the wall panel as the vertical direction, a Z clip is attached to each of the upper and lower ends or at one location in the horizontal center near the ends. Meanwhile, attach angles to each of the foundation and beam. Then, by inserting the free end side of the angle into the gap between the Z clip attached to the wall panel and the wall panel, a plurality of wall panels are arranged on the foundation. Note that the frame to which the angle is attached is selected as appropriate depending on the location where the wall panel is to be placed.

FIG. 7 is a diagram schematically showing how a wall panel attached to a building block by the rocking construction method follows the behavior and deformation of the building block. In the figure, 51 is the building block, 52 is the wall panel, and 53a and 53b are the building blocks. 51 shows the attachment part of the wall panel 52 to the wall panel 51, that is, the part where the angle is inserted between the above-mentioned Z clip and the wall panel. As shown in FIG. 7(a), the plurality of wall panels 52 are attached to the frame 51 at both ends in the longitudinal direction. In this state, if behavior or deformation occurs in the frame 51 due to an earthquake or the like, the wall panels 52 will not move in the in-plane direction with respect to the angle, that is, the frame 51 at the mounting parts 53a and 53b, as described above. Therefore, as shown in FIG. 7(b), the wall panel 52 follows the behavior and deformation of the frame 51, and damage or collapse of the wall surface is prevented.

Although FIG. 7 shows a configuration in which the wall panel 52 is stretched vertically so that the longitudinal direction is vertical, a horizontal configuration in which the longitudinal direction of the wall panel 52 is horizontal is different from the vertical configuration described above by 90°. It's the same except that it's rotated.

Next, the heat insulating wall structure of this embodiment will be specifically explained.
FIG. 1(a) is a cross-sectional end view of a wall panel in the width direction, schematically showing a partial configuration of a preferred embodiment of the heat insulating wall structure of the present invention, and FIGS. 1(b) and 1(c) 1A and 1B are cut-away end views of the constituent members of such a heat-insulating wall structure, with FIG. 1(b) showing a first heat-insulating laminate and FIG. 1(c) showing a second heat-insulating laminate. Moreover, FIG. 2 is a cross-sectional end view of the wall panel in the width direction, showing the manufacturing process of the heat insulating wall structure of FIG. In the present invention, as illustrated in FIG. 7, the wall panel has a plate shape with a rectangular main surface, and the width direction means the width direction.

As shown in FIG. 1(a), the heat insulating wall structure of the present invention includes a wall material layer 10 made up of a plurality of wall panels 11, and a heat insulating layer 20 disposed on one surface side of the wall material layer 10. The heat insulating layer 20 has a heat insulating laminate made up of a plurality of heat insulating plates stacked in the thickness direction, at least in the width direction of the wall panel 11. That is, the heat insulating layer 20 is formed by laminating a plurality of heat insulating plates in the thickness direction. At least a portion of the insulation laminate is then adhered to the wall panel 11.

The wall panel 11 according to the present invention may be any plate-shaped member that functions as a base material for attaching a heat insulating board, and concrete molded boards or cement molded boards are preferably used, and more specifically, hollow extruded Formed concrete panels, lightweight aerated concrete panels (ALC panels), precast concrete panels (PC panels), glass fiber reinforced cement panels (GRC panels), extruded cement plates (ECP), and the like are preferably used. The wall panel 11 illustrated in FIG. 1(a) is a hollow extruded concrete panel and has a hollow portion 11a along the longitudinal direction. Further, as the wall panel 11, fire-resistant panels, heat-resistant panels, etc., which are generally used as wall materials, are preferably used.

The heat insulating board according to the present invention is preferably a board made of synthetic resin foam, such as polystyrene foam, polyethylene foam, polypropylene foam, polyurethane foam, phenol resin foam, etc. can be used. Among these, polystyrene foam is preferred because it has low water absorption and excellent heat insulation properties, and either bead foam molding or extrusion foam molding may be used, but extrusion foam molding is preferred because of its excellent pressure resistance. preferable. In an extruded foam molded product, there is an upper limit to the thickness of a heat insulating plate that can be formed satisfactorily, and the present invention is preferably applied to forming a heat insulating layer 20 having a thickness exceeding the upper limit.

FIG. 1 shows an example in which two layers of heat insulating panels are stacked in the thickness direction to form a heat insulating layer 20, and a first heat insulating laminate 21 and a second heat insulating laminate 22 are stacked in the width direction ( The heat insulating layers 20 are arranged alternately in the left-right direction in the drawing. As shown in FIG. 1(b), the first heat insulating laminate 21 includes heat insulating plates 21a and 21b having different lengths in the cross section in the width direction, which are integrated via an adhesive layer 31b, and the wall panel 11 side The length L3 of the heat insulating board 21a is longer than the length L4 of the heat insulating board 21b on the side away from the wall panel 11, and both ends of the heat insulating board 21a protrude from both ends of the heat insulating board 21b. On the other hand, as shown in FIG. 1(c), the second heat insulating laminate 22 consists of heat insulating plates 22a and 22b having different lengths in cross section in the width direction, and is different from the first heat insulating laminate 21. Conversely, the length L6 of the heat insulating board 22a on the side of the wall panel 11 is shorter than the length L7 of the heat insulating board 22b on the side away from the wall panel 11. The sum of the length L3 of the heat insulating board 21a and the length L6 of the heat insulating board 22a, and the sum of the length L4 of the heat insulating board 21b and the length L7 of the heat insulating board 22b respectively correspond to the length L2 of the wall panel 11. do.

As shown in FIG. 2, the first heat insulating laminate 21 is fixed to the wall panel 11 by bonding the heat insulating board 21a to the wall panel 11 via the adhesive layer 31a. At this time, the heat insulating board 21a is bonded to only one wall panel 11 so as not to be bonded across the two wall panels 11,11. Then, the second heat insulating laminate 22 is fitted into the gap between the adjacent first heat insulating laminates 21, 21. At this time, the second heat insulating laminate 22 is only fitted and not adhered to the wall panel 11. Furthermore, the boundary between the two adjacent first heat insulating laminates 21, 21 is not bonded to at least one of them. FIG. 1A shows a configuration in which the second heat insulating laminate 22 is not bonded to either of the two adjacent first heat insulating laminates 21, 21.

In the embodiment of FIG. 1, each of the plurality of first heat insulating laminates 21 is adhesively fixed to only one wall panel 11, and is not bonded to the adjacent second heat insulating laminate 22, so that In response to the swing or displacement of the panel 11, the side surfaces of the first heat insulating laminate 21 and the second heat insulating laminate 22 slide and shift from each other at the boundary, so that the first heat insulating laminate 21 easily follows the rocking or displacement of the wall panels 11 individually. Furthermore, since the second heat insulating laminate 22 is not bonded to the first heat insulating laminate 21 and the wall panel 11, even if the wall panel 11 swings or is displaced, the first heat insulating laminate 21 and the wall By sliding and shifting its surface at the boundary with the panel 11, the stress received from the wall panel 11 and the first heat insulating laminate 21 can be alleviated.

Therefore, in this embodiment, even if the wall panel 11 oscillates or is displaced due to shaking of the frame due to an earthquake or the like, damage to the heat insulating layer 20 is suppressed.

Further, in this embodiment, each side surface has a step at the boundary between the first heat insulating laminate 21 and the second heat insulating laminate 22, and in the cross section of the wall panel 11 in the width direction, the boundary is It is non-linear. Therefore, movement of moisture and moisture from one space to the other space across the heat insulating wall structure of this embodiment is suppressed.

As an application of this embodiment, one of the two first heat insulating laminates 21, 21 adjacent to the second heat insulating laminate 22 in the width direction of the wall panel 11, It may be bonded to the second heat insulating laminate 22.

Furthermore, in the present embodiment, in the width direction of the wall panel 11, the boundary 11b between two adjacent wall panels 11, 11 is located within the heat insulating board 22a of the second heat insulating laminate 22 on the wall panel 11 side. The boundary 11b may coincide with one side surface of the heat insulating plate 22a. However, in order to prevent the movement of moisture and moisture, it is preferable that the boundary 11b and both sides of the heat insulating plate 22a be separated, and the distances between the boundary 11b and both sides of the heat insulating plate 22a should be equal. , L1=L6/2. Further, the length L6 of the heat insulating plate 22a may be set within a range where the effects of the present invention can be obtained, and is not particularly limited, but may be, for example, about 80 mm to 120 mm.

Furthermore, in the width direction of the wall panel 11, the length L5 of the end of the heat insulating board 21a protruding from the end of the heat insulating board 21b of the first heat insulating laminate 21, that is, the length L5 of the heat insulating board of the second heat insulating laminate 22 The length L8 of the end of the heat insulating board 22b that protrudes from the end of the heat insulating board 22b is not particularly limited as long as it can form a level difference that can prevent the movement of moisture and moisture, but for example, it may be about 30 mm to 70 mm. good. In addition, in order to follow the rocking or displacement of the wall panel 11 of the first heat insulating laminate 21 and to reduce the bias of stress generated in the heat insulating layer 20 due to the rocking or displacement, the end of the heat insulating board 21b It is preferable that the lengths of the ends of the heat insulating plate 21a that protrude more are equal on both ends.

[Embodiment 2]
FIG. 3(a) is a cross-sectional end view of the wall panel in the width direction, schematically showing the configuration of a part of another preferred embodiment of the heat insulating wall structure of the present invention, and FIG. 3(b) is a cross-sectional end view of the wall panel in the width direction. FIG. 2 is a cut end view of a heat insulating laminate used in a heat insulating wall structure. Regarding this embodiment, only the parts that are different from the first embodiment described above will be explained.

The heat insulating laminate 23 used in this embodiment is made by bonding two heat insulating plates 23a and 23b with the same length L9 through an adhesive layer 31d, with both ends mutually connected in the width direction of the wall panel 11. Glue it by shifting it by L10. The length L9 of the heat insulating plates 23a and 23b corresponds to the length L2 of the wall panel 11, and by bonding the heat insulating plate 23a on the wall panel 11 side to the wall panel 11 via the adhesive layer 31a, the heat insulating laminate 23 is fixed to the wall panel 11. At this time, in the width direction of the wall panel 11, each of the plurality of heat insulating laminates 23 is bonded to one wall panel 11, and one heat insulating laminate 23 is not bonded across the two wall panels 11, 11. By doing so, the heat insulating laminate 23 easily follows the rocking or displacement of the wall panel 11, and damage to the heat insulating layer 20 is prevented. In addition, the heat insulating laminate 23 has a step on the side surface, and in the cross section of the wall panel 11 in the width direction, the boundary between two adjacent heat insulating laminates 23 is non-linear. The movement of moisture and moisture from one space to the other is suppressed.

In the present embodiment, the distance L10 from the end of the heat insulating board 23a to the end of the heat insulating board 23b in the width direction of the wall panel 11 is sufficient as long as it can form a level difference within a range that can prevent the movement of moisture and water. Although not limited, it may be, for example, about 30 mm to 70 mm.

In the present embodiment, when bonding the heat insulating laminate 23 to the wall panel 11, in the width direction of the wall panel 11, the end of the heat insulating board 23a on the wall panel 11 side and the two walls adjacent to each other From the viewpoint of ease of work, it is preferable that the boundaries 11b between the panels 11, 11 coincide with each other, as shown in FIG. 3(a).

In addition, from the viewpoint of preventing the movement of moisture and moisture, the end of the heat insulating board 23a on the wall panel 11 side may be separated from the boundary 11b between the wall panels 11, 11, but in that case, the heat insulating board The end of the heat insulating board 23a that protrudes toward the adjacent wall panel 11 from the end of the wall panel 11 to which the heat insulating board 23a is bonded must not be bonded to the adjacent wall panel 11.

[Embodiment 3]
FIG. 4(a) is a cross-sectional end view of the wall panel in the width direction, schematically showing a partial configuration of another preferred embodiment of the heat insulating wall structure of the present invention, and FIG. 4(b) is a cross-sectional end view of the wall panel in the width direction. FIG. 2 is a cut end view of a heat insulating laminate used in a heat insulating wall structure. Regarding this embodiment, only the parts that are different from the first and second embodiments described above will be explained.

The heat insulating laminate 24 used in this embodiment is formed by bonding two heat insulating plates 24a and 24b with the same length L11 via an adhesive layer 31e. A protrusion 24c is formed at one end, and a recess 24d is formed at the other end. The convex portion 24c and the concave portion 24d are each continuous in the longitudinal direction of the wall panel 11 (direction perpendicular to the paper surface). The height L12 of the convex portion 24c (length in the width direction of the wall panel 11) corresponds to the depth L13 of the concave portion 24d (length in the width direction of the wall panel 11), and the thickness T1 of the convex portion 24c corresponds to 24d corresponds to the distance between the openings (distance in the thickness direction of the heat insulating plates 24a and 24b) T2, and the convex portion 24c fits into the concave portion 24d. The length L11 of the heat insulating plates 24a and 24b corresponds to the length L2 of the wall panel 11, and by bonding the heat insulating plate 24a on the wall panel 11 side to the wall panel 11 via the adhesive layer 31a, the heat insulating laminate 24 is fixed to the wall panel 11. After bonding one heat insulating laminate 24 to the wall panel 11, fit the convex portion 24d or convex portion 24c of the adjacent unbonded heat insulating laminate 24 into the convex portion 24c or recess 24d of the bonded heat insulating laminate 24. At the same time, the heat insulating laminate 24 is bonded to the wall panel 11 adjacent to the wall panel 11 to which the bonded heat insulating laminate 24 is bonded. In the width direction of the wall panel 11, each of the plurality of heat insulating laminates 24 is bonded to one wall panel 11, so that one heat insulating laminate 24 is not bonded across the two wall panels 11, 11. As a result, the heat insulating laminate 24 easily follows the rocking or displacement of the wall panel 11, and damage to the heat insulating layer 20 is prevented. Further, the heat insulating laminate 24 has a step formed by a convex portion 24c or a concave portion 24d on the side surface, and in the cross section of the wall panel 11 in the width direction, the boundary between two adjacent heat insulating laminates 24 is non-linear. Movement of moisture and moisture from one space to the other space across the insulating wall structure is suppressed.

In this embodiment, the height L12 of the protrusion 24c and the depth L13 of the recess 24d, the thickness T1 of the protrusion 24c, and the distance T2 of the opening of the recess 24d are set within a range that can prevent the movement of moisture and moisture. It is sufficient if a step can be formed, and there is no particular limitation, but for example, L12 and L13 may be approximately 30 mm to 70 mm, and T1 and T2 may be approximately 30 mm to 70 mm.

Further, in this embodiment, when bonding the heat insulating laminate 24 to the wall panel 11, in the width direction of the wall panel 11, the end of the heat insulating board 24a on the wall panel 11 side and the two adjacent walls From the viewpoint of ease of operation, it is preferable that the boundaries 11b of the panels 11, 11 coincide with each other, as shown in FIG. 4(a).

In addition, from the viewpoint of preventing the movement of moisture and moisture, the end of the heat insulating board 24a on the wall panel 11 side may be separated from the boundary 11b between the wall panels 11, 11, but in that case, the heat insulating board The end of the heat insulating board 24a that protrudes toward the adjacent wall panel 11 from the end of the wall panel 11 to which the heat insulating board 24a is bonded must not be bonded to the adjacent wall panel 11.

[Embodiment 4]
FIG. 5(a) is a cross-sectional end view of the wall panel in the width direction, schematically showing the configuration of a part of another preferred embodiment of the heat insulating wall structure of the present invention, and FIG. 5(b), (c ) are cut end views showing the constituent members constituting such a heat insulating wall structure, FIG. 5(b) shows a heat insulating laminate, and FIG. 5(c) shows a heat insulating block. Regarding this embodiment, only the parts that are different from the first to third embodiments described above will be explained.

The heat insulating laminate 25 used in this embodiment is formed by bonding two heat insulating plates 25a and 25b of the same length L14 via an adhesive layer 31f, and has recesses at both ends in the width direction of the wall panel 11. 25c and 25d are formed. Both of the recesses 25c and 25d are continuous in the longitudinal direction of the wall panel 11 (direction perpendicular to the plane of the paper). The depth L15 of the recess 25c (length in the width direction of the wall panel 11) and the depth L16 of the recess 25d may be different from each other, but are preferably equal. Moreover, the distances T3 and T4 between the respective openings of the recesses 25c and 25d (distances in the thickness direction of the heat insulating plates 25a and 25b) are equal to each other, and the two heat insulating laminates 25, which are adjacent in the width direction of the wall panel 11, 25, the recesses 25c and 25d face each other. In this embodiment, the heat insulating block 26 is fitted into the space formed by the recesses 25c and 25d without a gap at the boundary between the two heat insulating laminates 25, 25 adjacent in the width direction of the wall panel 11. . The heat insulating block 26 is made of the same material as the heat insulating plates 25a and 25b, and the length L17 in the width direction and the thickness T5 of the wall panel 11 are equal to the length L15+L16 of the space formed by the recesses 25c and 25d and the thickness. This corresponds to distances T3 and T4 in the horizontal direction.

The length L14 of the heat insulating plates 25a and 25b corresponds to the length L2 of the wall panel 11, and by bonding the heat insulating plate 25a on the wall panel 11 side to the wall panel 11 via the adhesive layer 31a, the heat insulating laminate 25 is fixed to the wall panel 11. After bonding one heat-insulating laminate 25 to the wall panel 11, one end of the heat-insulating block 26 is fitted into the recess 25c or 25d of the bonded heat-insulating laminate 25, and then the adjacent unbonded heat-insulating laminate 25 is While fitting the other end of the heat insulating block 26 into the recess 25d or 25c, the heat insulating laminate 25 is bonded to the wall panel 11 adjacent to the wall panel 11 to which the bonded heat insulating laminate 25 is bonded. . That is, in the width direction of the wall panel 11, each of the plurality of heat insulating laminates 25 is bonded to one wall panel 11, and one heat insulating laminate 25 is not bonded across the two wall panels 11, 11. By doing so, the heat insulating laminate 25 easily follows the rocking or displacement of the wall panel 11, and damage to the heat insulating layer 20 is prevented. Further, the heat insulating laminate 25 has recesses 25c, 25d and a step formed by the heat insulating block 26 on the side surface, and in the cross section of the wall panel 11 in the width direction, the boundary between two adjacent heat insulating laminates 25 is non-linear. Therefore, the movement of moisture and moisture from one space to the other space across the insulating wall structure is suppressed.

In the present embodiment, the length L17 and thickness T5 of the heat insulating block 26 are not particularly limited as long as they can form a step within a range that can prevent the movement of moisture and moisture, but may be, for example, about 30 mm to 70 mm. .

In this embodiment, when bonding the heat insulating laminate 25 to the wall panel 11, in the width direction of the wall panel 11, the end of the heat insulating board 25a on the wall panel 11 side and the two walls adjacent to each other From the viewpoint of ease of operation, it is preferable that the boundaries 11b of the panels 11, 11 coincide with each other, as shown in FIG. 5(a).

In addition, from the viewpoint of preventing the movement of moisture and water, the end of the heat insulating board 25a on the wall panel 11 side may be separated from the boundary 11b between the wall panels 11, 11, but in that case, the heat insulating board It is necessary that the end of the heat insulating board 25a that protrudes toward the adjacent wall panel 11 from the end of the wall panel 11 to which the heat insulating board 25a is adhered does not adhere to the adjacent wall panel 11.

In the third and fourth embodiments described above, in the cross section of the wall panel 11 in the width direction, the convex portion 24 c and the recess 24 d at the end of the heat insulating laminate 24 , the recesses 25 c and 25 d at the end of the heat insulating laminate 25 , and the heat insulating block 26 Although the case is shown in which the shape is rectangular, the present invention is not limited to such a shape. FIG. 6 is a cut end view of the wall panel 11 in the width direction near the boundary between the wall panels 11 and 11, showing an application example of the third and fourth embodiments. In the third embodiment, the shape of the convex portion 24c at the end of the heat insulating laminate 24 is a semicircle as shown in FIG. 6(a), a triangle as shown in FIG. 6(b), and a trapezoid as shown in FIG. 6(c). Good too. In the fourth embodiment, the shape of the heat insulating block 26 may be a circle as shown in FIG. 6(d), a diamond shape as shown in FIG. 6(e), or a recessed portion as shown in FIG. 6(f). 25c and 25d may have trapezoidal shapes.

Furthermore, in the first to fourth embodiments described above, the heat insulating laminates 21 to 25 each have a two-layer structure in which two heat insulating plates are laminated, but in the present invention, a structure in which three or more layers are laminated is used. It's okay. In the case of three or more layers, in Embodiments 1 and 2, the boundaries between adjacent heat insulating laminates may be stepped. Further, in the third embodiment, it is sufficient that there is at least one combination of a convex portion 24c and a concave portion 24d at the boundary between adjacent heat insulating laminates, and in three or more layers, the ends of the intermediate heat insulating plates may be shifted. Thus, a convex portion 24c and a concave portion 24d can be provided. In addition, in the fourth embodiment, it is sufficient that at least one heat insulating block 26 is fitted and arranged at the boundary between adjacent heat insulating laminates, and by shortening the length of the intermediate heat insulating plate, the recesses 25c and 25d can be reduced. can be provided.

In the heat insulating wall structure of the present invention, other members may be further laminated on each surface of the wall material layer 10 and the heat insulating layer 20, for example, a moisture proof material is bonded to cover the boundary between two adjacent heat insulating boards. This is preferable because it suppresses the movement of moisture and humidity through the boundary.

In the first to fourth embodiments described above, the structure in which the heat insulating layer 20 was provided only on one surface of the wall material layer 10 was shown, but in the present invention, the heat insulating layer 20 is provided on both surfaces of the wall material layer 10. It's okay. In that case, the structure of the heat insulating layer on one surface side and the heat insulating layer on the other surface side may be the same or different. Further, the heat insulating wall structure of the present invention can be used both as an exterior wall of a building and as an indoor partition wall.

10: Wall material layer, 11: Wall panel, 11a: Hollow part, 11b: Boundary, 20: Heat insulating layer, 21 to 25: Heat insulating laminate, 21a to 25b: Heat insulating board, 24c: Convex part, 24c, 25c, 25d : recess, 26: heat insulation block, 31a to 31f: adhesive layer, 51: frame, 52: wall panel, 53a, 53b: attachment part, 60: wall material layer, 61: wall panel, 61a: hollow part, 70: heat insulation Layer, 71a, 71b: heat insulating board, 80a, 80b: adhesive layer

Claims (7)

A heat insulating wall structure comprising a wall material layer consisting of a plurality of wall panels attached to a building frame by a rocking construction method, and a heat insulating layer disposed on at least one surface side of the wall material layer,
The heat insulating layer has a heat insulating laminate made up of a plurality of heat insulating plates stacked in the thickness direction, at least in the width direction of the wall panel,
at least a portion of the insulation laminate is adhered to the wall panel;
In the width direction of the wall panel, each of the heat insulating laminates bonded to the wall panel is bonded to one of the wall panels,
A heat insulating wall structure characterized in that, in a cross section in the width direction of the wall panel, boundaries between two adjacent heat insulating laminates are non-linear and non-adhesive. The heat insulating layer is a first heat insulating laminate in which the length of the heat insulating board on the side of the wall panel is longer than the length of the heat insulating board on the side away from the wall panel in a cross section in the width direction of the wall panel; a second heat insulating laminate in which the length of the heat insulating board on the side of the wall panel is shorter than the length of the heat insulating board on the side away from the wall panel,
In the width direction of the wall panel, each of the first heat-insulating laminates is adhered to one wall panel, and the second heat-insulating laminate is disposed between two adjacent first heat-insulating laminates. The heat insulating layer according to claim 1, wherein the second heat insulating laminate is not bonded to at least one of the two adjacent first heat insulating laminates and the wall panel. wall structure. The heat insulating wall structure according to claim 1, wherein the heat insulating laminate is comprised of a plurality of heat insulating plates having a width equal to the width of the wall panel. The heat insulating wall structure according to claim 3, wherein both ends of the plurality of heat insulating plates are offset from each other in the width direction of the wall panel. In the width direction of the wall panel, the heat insulating laminate has a convex portion at one end and a concave portion corresponding to the convex portion at the other end, and the convex portion and the concave portion fit into each other. The insulating wall structure according to claim 3, characterized in that: In the width direction of the wall panel, the heat insulating laminate has recesses at both ends, and heat insulating blocks are fitted into the recesses across two adjacent heat insulating laminates. The insulating wall structure according to item 3. According to any one of claims 3 to 6, on the wall material layer side, a boundary between two adjacent heat insulating laminates corresponds to a boundary between two adjacent wall panels. insulated wall structure.

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