Spacer for mounting insulation material and insulation structure

Abstract

To provide a spacer for mounting insulation materials with excellent workability that can secure ventilation space between insulation materials with flexibility and an exterior wall material while fixing the insulation material to a framework, and an insulation structure.SOLUTION: A spacer 1 for mounting insulation materials comprises: a cylindrical portion 2 longer than a thickness of an insulation material 7; a pressing portion 22 provided at a rear end of the cylindrical portion; an opening 23 formed in an intermediate portion of the cylindrical portion 2; a shaft portion 3 inserted into the cylindrical portion 2 and movable in an axial direction; an energization member 11 that pushes the shaft portion 3 toward a front end of the cylindrical portion 2; and an insulation material pressing piece 32 provided near a tip end 31 of the shaft portion 3 and stored inside the cylindrical portion 2. When the cylinder portion 2 moves forward due to pressing of the pressing portion 22, the insulation material pressing piece 32 protrudes from the opening 23 and expands outward in a radial direction and is adhered to one surface of the insulation material 7. By adhering the tip end 31 of the shaft portion 3, which protrudes on the outdoor side of the insulation material 7, to a rear surface of an external wall material 8, a ventilation space 9 is formed between the insulation material 7 and the external wall material 8.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The invention disclosed in this application relates to a spacer for mounting an insulating material used in a thermal insulation construction method for the outer periphery of a building having a framework structure, and to a thermal insulation structure constructed using the spacer for mounting an insulating material. [Background technology]

[0002] A well-known thermal insulation method for the outer periphery of a steel-framed building involves erecting an interior wall base panel, which integrates a frame and insulating material, within the structural plane of the framework surrounded by the columns and beams of the outer periphery, or slightly inside the structural plane, and then applying an interior wall finishing material such as gypsum board or wallpaper to the interior wall base panel. Additionally, insulating material is also laid or erected on the exterior side of the interior wall base panel, thereby forming a double layer of insulating material inside and outside, thereby improving the building's insulating performance. The frame of the interior wall base panel is made of wood or lightweight steel, and the insulating material attached to the interior wall base panel is often a board-shaped insulating material made of a foamed resin molded product such as polystyrene foam, polyethylene foam, rigid urethane foam, or phenolic foam.

[0003] Insulation materials placed on the exterior side of interior wall base panels include board-shaped insulation materials similar to those described above, as well as fiber-based insulation materials formed into a flexible mat by filling inorganic fibers such as glass wool or rock wool into a bag made of resin film. When insulation materials placed on the exterior side are placed in contact with the back surface of the exterior wall material, condensation occurs between the exterior wall material and the insulation material, so a ventilation space is provided between the two. The present applicant has also proposed and put into practical use insulation construction methods (thermal insulation structures, wall structures, etc.) for peripheral areas having such double inner and outer insulation layers and a ventilation space behind the exterior wall material, for example, in Patent Documents 1 to 9. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 02-108747 [Patent Document 2] Japanese Patent Application Publication No. 02-144437 [Patent Document 3] Japanese Patent Application Publication No. 10-237976 [Patent Document 4] Japanese Patent Application Publication No. 10-266417 [Patent Document 5] Japanese Patent Application Laid-Open No. 2010-037873 [Patent Document 6] Japanese Patent Application Laid-Open No. 2014-173257 [Patent Document 7] Japanese Patent Application Publication No. 2020-094449 [Patent Document 8] Patent Publication No. 2021-116559 [Patent Document 9] Patent Publication No. 2021-121709 Summary of the Invention [Problem to be solved by the invention]

[0005] The invention disclosed in this application was conceived to further improve the workability of the conventional thermal insulation construction methods described above, and aims to provide an insulation mounting spacer that is easy to work with, and that, when using fiber-based insulation as the insulation behind the exterior wall material, can fix the insulation material to the framework of the building frame while at the same time ensuring an appropriate ventilation space between the insulation material and the exterior wall material, as well as an insulation structure that uses this insulation mounting spacer. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the invention disclosed in this application is an insulation mounting spacer that is inserted into one side of flexible insulation in a direction perpendicular to the surface, thereby securing a space on the other side of the insulation with a width corresponding to the length of the portion protruding on the other side of the insulation, and is equipped with a cylindrical portion having an axial length greater than the thickness of the insulation, a flange-shaped pressing portion provided at the rear end of the cylindrical portion, an opening formed in the middle of the cylindrical portion, a shaft portion that is inserted into the cylindrical portion and held so as to be movable in the axial direction of the cylindrical portion, a biasing member interposed between the cylindrical portion and the shaft portion that pushes the shaft portion forward of the cylindrical portion, and an insulation pressing piece provided near the tip of the shaft and stored within the cylindrical portion, and when the cylindrical portion moves a predetermined distance forward of the shaft portion by pressing in the pressing portion, the insulation pressing piece protrudes from the opening formed in the cylindrical portion and expands radially outward of the shaft portion, and is attached to one side of the insulation.

[0007] In this first invention, the insulation material retaining piece is shaped to protrude radially outward from the shaft portion and is connected to the shaft portion, and the insulation material retaining piece can be folded to the rear of the shaft portion and stored within the tubular portion with its free end exposed from the opening of the tubular portion.

[0008] It is more preferable that the free end of the heat insulating material retaining piece is formed with an engaging portion that engages with the opening of the cylindrical portion to prevent the shaft portion from slipping out towards the tip of the cylindrical portion.

[0009] In addition, the invention disclosed in this application is a second invention of an insulation mounting spacer, which is an insulation mounting spacer that is inserted into one side of a flexible insulation material in a direction perpendicular to the surface, to secure a space on the other side of the insulation material with a width corresponding to the length of the portion protruding on the other side of the insulation material, and is equipped with a shaft portion having an axial length greater than the thickness of the insulation material, a flange-shaped head portion provided at the rear end of the shaft portion, a tubular portion that is inserted into the middle of the shaft portion and held so as to be able to move in the axial direction of the shaft portion, a spring member interposed between the tubular portion and the shaft portion and pushing the tubular portion forward of the shaft portion, and an insulation material pressing piece provided near the tip end of the shaft and stored within the tubular portion, and adopts the following configuration: when the shaft portion moves a predetermined distance forward of the tubular portion by pushing the head portion, the insulation material pressing piece is exposed at the front of the tubular portion and expands radially outward of the shaft portion, and is attached to one side of the insulation material.

[0010] Furthermore, in this second invention, the insulation material holding piece is shaped to protrude radially outward from the shaft portion and is connected to the shaft portion, and the insulation material holding piece can be stored within the tubular portion in a state where it is folded behind the shaft portion.

[0011] Furthermore, the invention of the insulation structure disclosed in the present application is characterized in that the insulation mounting spacer according to the first or second invention is inserted into a flexible insulation material from the indoor side so as to penetrate the insulation material in a direction perpendicular to the surface, and is arranged at multiple locations at appropriate intervals, and the tip of the shaft protruding to the outdoor side of the insulation material abuts against the back surface of the exterior wall material, thereby forming a ventilation space with a width equivalent to the distance from the tip to the insulation material pressing piece between the exterior wall material and the insulation material. [Effects of the Invention]

[0012] By inserting the insulation mounting spacer configured as described above into a flexible insulation material so that it penetrates from one side of the insulation material to the other side, and abutting the part protruding on the other side against the back side of the exterior wall material, a ventilation space can be easily and reliably formed on the back side of the exterior wall material. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is an exploded perspective view showing the overall configuration of a spacer for mounting a thermal insulator according to a first embodiment of the invention disclosed in the present application. [Figure 2] 2A to 2C are explanatory diagrams showing the construction procedure of a heat insulating structure using the heat insulating material mounting spacer of FIG. 1. [Figure 3] FIG. 2 is an external perspective view showing the overall configuration of a spacer for mounting a thermal insulator according to a second embodiment of the invention disclosed in the present application. [Figure 4] 4 is an explanatory diagram showing a heat insulating structure using the heat insulating material mounting spacer of FIG. 3 along the construction procedure. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The thermal insulation structure disclosed herein corresponds to a so-called external thermal insulation ventilation structure, in which a thermal insulation material is placed on the exterior side of the building frame at the periphery of a steel frame building, and a ventilation space is formed between the thermal insulation material and the exterior wall material. The thermal insulation material is typically a fiber-based thermal insulation material formed by filling inorganic fibers such as glass wool or rock wool into a resin film bag and forming it into a flexible mat shape. However, this invention is applicable not only to thermal insulation materials primarily composed of inorganic fibers, but also to thermal insulation materials formed into a mat or board shape that is flexible (expandable) in the thickness direction (e.g., soft foam resin or natural material (e.g., cellulose fiber, wool breath, recycled felt, etc.)).

[0015] Such insulation is fixed to the building frame by fastening its upper edge to beams or the like on the upper floor and hanging it down, or by gluing its side edges to columns or the like. In the invention disclosed in this application, there are no particular limitations on the means for fixing the peripheral edge of the insulation to the building frame. The insulation mounting spacer disclosed in this application is attached from the indoor side of the building frame to the portion of the insulation other than the peripheral edge, thereby ensuring a ventilation space between the insulation and the exterior wall material.

[0016] In the following, when explaining the relative positions of parts and components and the direction of operation, the posture of the worker when fixing the insulation material from the indoor side of the structure toward the back side of the exterior wall material will be used as the reference, with the outdoor side being defined as the front and the indoor side as the rear.

[0017] First Embodiment 1 and 2 show a first embodiment of a spacer for attaching a heat insulator. This spacer for attaching a heat insulator 1 is constructed by combining two members, a cylindrical portion 2 and a shaft portion 3.

[0018] The cylindrical portion 2 is a hollow member having an opening edge 21 at its tip, and has an axial length that is sufficiently greater than the thickness of the insulating material 7 (see Figure 2), with a flange-shaped pressing portion 22 provided at its rear end. The shaft portion 3 is formed so that its axial length is slightly shorter than that of the cylindrical portion 2, and is inserted into the cylindrical portion 2 from the opening edge 21 of the cylindrical portion 2 and held so as to be movable in the axial direction of the cylindrical portion 2. The shaft portion 3 is formed with a pointed tip portion 31. A compression coil spring 11 is interposed between the rear end of the shaft portion 3 and the pressing portion 22 of the cylindrical portion 2 as a biasing member that pushes the shaft portion 3 forward of the cylindrical portion 2.

[0019] A plurality of insulation retaining pieces 32 (two in the illustrated embodiment) are attached to the shaft portion 3 near the tip end 31, and are shaped to protrude radially outward from the shaft portion 3. The insulation retaining pieces 32 are formed in the shape of long, petals with a width approximately equal to the diameter of the shaft portion 3. They are folded toward the rear of the shaft portion 3 and are stored within the cylindrical portion 2 with their free ends exposed from openings 23 formed in the middle of the cylindrical portion 2. The free ends of the insulation retaining pieces 32 exposed from the openings 23 are provided with engagement portions 33 that prevent the shaft portion 2 from slipping out of the opening edge 21 of the cylindrical portion 2 due to the biasing force of the compression coil spring 11. The engagement portions 33 in the illustrated embodiment are formed so that the free ends of the insulation retaining pieces 32 are curved in a substantially semicircular arc shape in a side view toward the tip of the cylindrical portion 2. The folded portions engage with the openings 23, positioning the shaft portion 3 at a predetermined position within the cylindrical portion 2 and preventing it from slipping out of the cylindrical portion 2. However, this engaging portion 33 is not limited to the illustrated shape as long as it has a shape that can engage with the opening 23 and hold the shaft portion 3 so as not to slip out of the tubular portion 2, and can be, for example, a shape that expands in an arc shape in the radial outward direction of the shaft portion 3, or a shape that is bent in an approximately L-shape, etc., as appropriate.

[0020] As shown in Figure 2(a), this insulation mounting spacer 1 is attached so that its tip 31 faces the outdoors and is thrust into the insulation 7 from the indoor side, penetrating the insulation 7 in a direction perpendicular to its surface, with approximately half of the tip end of the tubular portion 2 and shaft portion 3 protruding toward the outdoors side of the insulation 7. Then, as shown in Figure 2(b), with the tip 31 of the shaft portion 3 abutting against the back surface (indoor side) of the exterior wall material 8, the pressing portion 22 of the tubular portion 2 is pushed forward (outdoor side). Then, the insulation pressing piece 32, whose free end (engaging portion 33) is exposed from the opening 23 of the tubular portion 2, gradually becomes more exposed as the opening 23 advances, and protrudes radially outward. The insulating material 7 is initially compressed by being sandwiched between the insulating material pressing piece 32 that protrudes outward from the tubular portion 2 and the pressing portion 22, but when the tubular portion 2 moves a predetermined distance toward the tip of the shaft portion 3 and the insulating material pressing piece 32 is fully expanded, the insulating material 7 expands to fit along the expanded insulating material pressing piece 32, as shown in Figure 2(c), and is maintained at an appropriate thickness.

[0021] That is, the insulation material holding piece 32 is connected to the shaft 3 so that, in the deployed state shown in Fig. 2(c), the angle α between the shaft 3 and the insulation material holding piece 32 is approximately 90 degrees (80 to 95 degrees as a guideline), and the insulation material 7 is appropriately compressed and sandwiched between the insulation material holding piece 32 and the pressing part 22. In this case, although not shown, it is more preferable if the free end or a suitable position of the middle part of the insulation material holding piece 32 is formed so that it can be hooked onto the outdoor surface of the insulation material 7, as this will stably maintain the deployed state shown in Fig. 2(c).

[0022] The axial length of the tubular portion 2 is set so that, in this expanded state, its opening edge 21 abuts against the back surface of the exterior building material 8. Here, an adhesive portion (not shown) filled with, for example, a bag-like adhesive may be provided at the opening edge 21 of the tubular portion 2, so that when the tubular portion 2 abuts against the exterior building material 8, the adhesive portion is compressed, causing the adhesive to seep out, and thereby fixing the heat insulating material mounting spacer 1 to the exterior building material 8.

[0023] Such insulation mounting spacers 1 are attached to the insulation 7 at multiple locations with appropriate spacing in both the vertical and horizontal directions. The tips 31 of the shafts 3 of these insulation mounting spacers 1 protrude to the outdoor side of the insulation 7 and come into contact with the back surface of the exterior building material 8, thereby forming a ventilation space 9 between the exterior building material 8 and the insulation 7, with a width equivalent to the distance from the tips 31 of the shafts 3 to the insulation pressing pieces 32.

[0024] Second Embodiment 3 and 4 show a second embodiment of the spacer for attaching a thermal insulator. This spacer for attaching a thermal insulator 4 is also composed of two members, a cylindrical portion 5 and a shaft portion 6. However, the shapes of the respective members and the assembly form are slightly different from those of the first embodiment.

[0025] In the second embodiment, the spacer 4 for mounting a thermal insulator has a shaft 6 having an axial length sufficiently greater than the thickness of the thermal insulator 7, and a flange-shaped head 63 is provided at the rear end thereof. The tip 61 of the shaft 6 is formed into a pointed tip. The tubular portion 5 is formed so that its axial length is shorter than the axial length of the shaft 6, and is inserted into the middle of the shaft 6 and held so as to be movable in the axial direction of the shaft 6. A compression coil spring 41 is interposed between the rear end of the tubular portion 5 and the head 63 of the shaft 6 as a biasing member that pushes the tubular portion 5 toward the tip 61 of the shaft 6.

[0026] An insulating material pressing piece 62 is attached to the shaft 6 near the tip 61, and is shaped to protrude radially outward from the shaft 6. This insulating material pressing piece 62 is folded toward the rear of the shaft 6 and stored inside the tubular portion 5.

[0027] As shown in Figure 4(a), this insulation mounting spacer 4 is also attached so that its tip 61 faces the outdoors and is thrust into the insulation 7 from the indoor side, penetrating the insulation 7 in a direction perpendicular to its surface, with the tip 61 of the shaft 6 protruding from the outdoors side of the insulation 7. From this point, as shown in Figure 4(b), when the tubular part 5 is retracted indoors, the insulation holding piece 62 is exposed from the opening edge 51 of the tubular part 5. When the tubular part 5 moves a predetermined distance rearward of the shaft 6 and the insulation holding piece 62 is completely exposed, the insulation holding piece 62 unfolds to form an angle of approximately 90 degrees with respect to the shaft 6, as shown in Figure 4(c), and the insulation 7 is appropriately compressed and sandwiched between the insulation holding piece 62 and the head 63.

[0028] Such insulation mounting spacers 4 are attached to the insulation 7 at multiple locations with appropriate spacing between them both vertically and horizontally. The tips 61 of the shafts 6 of the insulation mounting spacers 4 at multiple locations protrude to the outdoor side of the insulation 7 and come into contact with the back surface of the exterior building material 8, thereby forming a ventilation space 9 between the exterior building material 8 and the insulation 7, the width of which corresponds to the distance from the tips 61 of the shafts 6 to the insulation pressing pieces 62.

[0029] As described above, by using the insulation mounting spacer according to the invention disclosed herein, the work of placing insulation on the outdoor side of the building frame and forming a ventilation space between the insulation and the exterior wall material can be easily and quickly performed from the indoor side. The work of attaching the insulation mounting spacer to the insulation material is highly safe because the pointed tip of the shaft faces the outdoor side. This allows for an optimal insulation structure with a ventilation space behind the exterior wall material, preventing condensation within the wall and optimizing insulation efficiency.

[0030] In this invention, it is not limited to whether or not the insulation mounting spacer attached to the insulation material is fixed (bonded) to the exterior wall material. In an insulation structure where the insulation material is not fixed to the exterior wall material, for example, simply attaching the upper edge of the insulation material to a beam or the like on the upper floor and hanging it along the back surface of the exterior wall material makes it easy to ensure a ventilation space between the exterior wall material and the insulation material. Furthermore, if the insulation material is not fixed, it can be placed regardless of the material, shape, condition, etc. of the back surface of the exterior wall material. Therefore, even in wall renovation work, for example, the insulation performance can be improved by simply working from the indoor side without being affected by the condition of the back surface of the existing exterior wall material.

[0031] However, in configurations where only the pointed tip of the shaft abuts against the exterior wall material (for example, Figure 4), the insulation mounting spacer may be unable to maintain a perpendicular orientation to the exterior wall material and may tilt, resulting in areas where a sufficient ventilation space cannot be secured. In such cases, measures such as increasing the number of insulation mounting spacers installed and narrowing the spacing are required. In configurations where not only the tip of the shaft but also the opening edge of the tube abuts against the exterior wall material (for example, Figure 2), the perpendicular orientation to the exterior wall material is more easily maintained, so the number of insulation mounting spacers installed can be reduced and the spacing can be widened.

[0032] On the other hand, in a configuration in which the tip of the shaft that abuts the exterior wall material and the opening edge of the tube portion are fixed to the exterior wall material with adhesive or the like, the insulation material can be fixed at the same time as forming the ventilation space, further improving workability.

[0033] The above describes the configuration and effects of the invention disclosed in this application. However, the technical scope of this invention should not be construed as being limited by the illustrated embodiments, but should be construed conceptually based on the claims. The names of elements used in the claims and specification are for convenience in making the invention easier to understand specifically, and the names do not unnecessarily limit the concepts or properties of the elements. In implementing the invention disclosed in this application, the detailed shape, dimensions, structure, materials, quantity, connection form with other elements, relative positional relationship, etc. of elements not specifically specified in the claims may be appropriately modified within the scope of utilizing an operating principle substantially equivalent to the illustrated embodiment or within the scope of obtaining effects substantially equivalent to or greater than the illustrated embodiment.

[0034] Furthermore, the embodiments and other matters disclosed in this specification can also be understood as the technical ideas described in the following supplementary notes. (Appendix 1) A spacer for mounting a heat insulating material is inserted into a flexible heat insulating material from one side thereof in a direction perpendicular to the surface thereof, and is used to secure a space on the other side of the heat insulating material having a width corresponding to the length of the portion of the heat insulating material protruding on the other side of the heat insulating material, a cylindrical portion having an axial length greater than the thickness of the thermal insulating material; a flange-shaped pressing portion provided at a rear end of the cylindrical portion; an opening formed in a middle portion of the cylindrical portion; a shaft portion inserted into the cylindrical portion and held so as to be movable in the axial direction of the cylindrical portion; a biasing member interposed between the cylindrical portion and the shaft portion to push the shaft portion forward of the cylindrical portion; a heat insulating material pressing piece provided near the tip end of the shaft portion and housed within the cylindrical portion; Equipped with When the cylindrical portion is moved a predetermined distance forward of the shaft portion by the pressing portion, the heat insulating material pressing piece protrudes from the opening formed in the cylindrical portion and expands radially outward of the shaft portion, and is attached to one side of the heat insulating material. A spacer for mounting a heat insulating material configured as follows. (Appendix 2) In the spacer for attaching a heat insulating material according to claim 1, The heat insulating material pressing piece is shaped to protrude radially outward from the shaft portion and is joined to the shaft portion, The heat insulating material pressing piece is folded behind the shaft portion and stored in the cylindrical portion with its free end exposed from the opening of the cylindrical portion. A spacer for mounting a heat insulating material. (Appendix 3) In the spacer for attaching a heat insulating material according to claim 2, An engaging portion is formed at the free end of the heat insulating material pressing piece to engage with the opening of the cylindrical portion and prevent the shaft portion from slipping out toward the front of the cylindrical portion. A spacer for mounting a heat insulating material. (Appendix 4) A spacer for mounting a flexible insulating material is inserted into one side of the insulating material in a direction perpendicular to the surface thereof, and is used to secure a space on the other side of the insulating material having a width corresponding to the length of the portion of the insulating material protruding on the other side of the insulating material, a shaft portion having an axial length greater than a thickness of the thermal insulation material; a flange-shaped head provided at the rear end of the shaft; a cylindrical portion inserted into an intermediate portion of the shaft portion and held so as to be movable in the axial direction of the shaft portion; a biasing member interposed between the cylindrical portion and the shaft portion to push the cylindrical portion forward of the shaft portion; a heat insulating material pressing piece provided near the tip end of the shaft portion and housed within the cylindrical portion; Equipped with When the shaft portion is moved a predetermined distance toward the front end of the tubular portion by pushing the head portion, the heat insulating material pressing piece is exposed at the front end of the tubular portion, expands radially outward from the shaft portion, and is attached to one side of the heat insulating material. A spacer for mounting a heat insulating material configured as follows. (Appendix 5) In the spacer for attaching a heat insulating material according to claim 4, The heat insulating material pressing piece is shaped to protrude radially outward from the shaft portion and is joined to the shaft portion, The heat insulating material pressing piece is stored in the cylindrical portion in a folded state behind the shaft portion. A spacer for mounting a heat insulating material. (Appendix 6) A heat insulating material mounting spacer according to any one of claims 1 to 5 is inserted into a flexible heat insulating material from the indoor side so as to penetrate the heat insulating material in a direction perpendicular to the surface, and is arranged at a plurality of locations at appropriate intervals, The tip of the shaft protruding to the outdoor side of the heat insulating material abuts against the back surface of the exterior wall material, so that a ventilation space having a width corresponding to the distance from the tip to the heat insulating material pressing piece is formed between the exterior wall material and the heat insulating material. A heat-insulating structure characterized by: [Industrial Applicability]

[0035] The invention disclosed in this application can be widely used not only in the thermal insulation structures around the periphery of buildings as exemplified above, but also in construction areas where flexible mat-like covering or shielding materials are placed with a predetermined space between them and an appropriate wall. [Explanation of symbols]

[0036] 1 Insulation mounting spacer 11 Compression coil spring (biasing member) 2 Cylinder part 21 Opening edge 22 Pressing section 23 Opening 3 Shaft 31 Tip 32 Insulation retaining piece 33 Engagement part 4 Insulation mounting spacers 41 Compression coil spring (biasing member) 5 Cylinder part 51 Opening edge 6 Shaft 61 Pointed tip 62 Insulation retaining piece 63 Head 7. Insulation 8 Exterior wall materials 9 Ventilation space

Claims

1. A spacer for mounting a heat insulating material is inserted into a flexible heat insulating material from one side thereof in a direction perpendicular to the surface thereof, and is used to secure a space on the other side of the heat insulating material having a width corresponding to the length of the portion of the heat insulating material protruding on the other side of the heat insulating material, a cylindrical portion having an axial length greater than the thickness of the thermal insulating material; a flange-shaped pressing portion provided at a rear end of the cylindrical portion; an opening formed in a middle portion of the cylindrical portion; a shaft portion inserted into the cylindrical portion and held so as to be movable in the axial direction of the cylindrical portion; a biasing member interposed between the cylindrical portion and the shaft portion to push the shaft portion forward of the cylindrical portion; a heat insulating material pressing piece provided near the tip end of the shaft portion and housed within the cylindrical portion; Equipped with When the cylindrical portion is moved a predetermined distance forward of the shaft portion by the pressing portion, the heat insulating material pressing piece protrudes from the opening formed in the cylindrical portion and expands radially outward of the shaft portion, and is attached to one side of the heat insulating material. A spacer for mounting a heat insulating material configured as follows.

2. 2. The spacer for attaching a heat insulating material according to claim 1, The heat insulating material pressing piece is shaped to protrude radially outward from the shaft portion and is joined to the shaft portion, The heat insulating material pressing piece is folded behind the shaft portion and stored in the cylindrical portion with its free end exposed from the opening of the cylindrical portion. A spacer for mounting a heat insulating material.

3. 3. The spacer for attaching a heat insulating material according to claim 2, An engaging portion is formed at the free end of the heat insulating material pressing piece to engage with the opening of the cylindrical portion and prevent the shaft portion from slipping out toward the front of the cylindrical portion. A spacer for mounting a heat insulating material.

4. A spacer for mounting a flexible insulating material is inserted into one side of the insulating material in a direction perpendicular to the surface thereof, and is used to secure a space on the other side of the insulating material having a width corresponding to the length of the portion of the insulating material protruding on the other side of the insulating material, a shaft portion having an axial length greater than a thickness of the thermal insulation material; a flange-shaped head provided at the rear end of the shaft; a cylindrical portion inserted into an intermediate portion of the shaft portion and held so as to be movable in the axial direction of the shaft portion; a biasing member interposed between the cylindrical portion and the shaft portion to push the cylindrical portion forward of the shaft portion; a heat insulating material pressing piece provided near the tip end of the shaft portion and housed within the cylindrical portion; Equipped with When the shaft portion is moved a predetermined distance toward the front end of the tubular portion by pushing the head portion, the heat insulating material pressing piece is exposed at the front end of the tubular portion, expands radially outward from the shaft portion, and is attached to one side of the heat insulating material. A spacer for mounting a heat insulating material configured as follows.

5. 5. The spacer for attaching a heat insulating material according to claim 4, The heat insulating material pressing piece is shaped to protrude radially outward from the shaft portion and is joined to the shaft portion, The heat insulating material pressing piece is stored in the cylindrical portion in a folded state behind the shaft portion. A spacer for mounting a heat insulating material.

6. The spacers for mounting heat insulating material according to any one of claims 1 to 5 are inserted into a flexible heat insulating material from the indoor side so as to penetrate the heat insulating material in a direction perpendicular to the surface, and are arranged at a plurality of locations at appropriate intervals, The tip of the shaft protruding to the outdoor side of the heat insulating material abuts against the back surface of the exterior wall material, so that a ventilation space having a width corresponding to the distance from the tip to the heat insulating material pressing piece is formed between the exterior wall material and the heat insulating material. A heat-insulating structure characterized by:

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