JP7762098B2 - Pillar insulation - Google Patents

Description

This invention relates to pillar insulation.

In buildings such as houses, insulation is installed inside the walls to provide thermal insulation (see, for example, Patent Document 1). Insulation is also attached to the inside of the pillars installed inside the walls.

JP 2011-196122 A

If insulation material such as glass wool, which does not retain its shape and is easily deformed and does not settle into a fixed shape, is installed inside the pillar, there is a problem that the insulation performance will decrease if the insulation material deforms and gaps are created between the pillar and the material.

The main purpose of this invention is to contribute to improving the above-mentioned problems.

In response to the above problems, the present invention provides:
A pillar insulation material for insulating metal studs with a C-shaped cross section,
a heat insulating material body formed of an organic material, having a first portion with a width dimension that can be inserted into the interior of the stud through an opening of the stud that opens to the indoor side, and extending in the vertical direction along the stud;
an opening locking portion formed on a second portion of the thermal insulation body that protrudes from the stud toward the indoor side so as to protrude on both sides of the opening of the stud and that can be locked to the stud in an insertion direction;
a backing portion formed in the first portion of the thermal insulation body within the stud and abutting against a rear surface of the stud;
The heat insulating material body is characterized by having a crimp fixing portion on the side surface, in which the width dimension of part of the first portion is partially wider than the width dimension of the opening of the partition wall.

According to the present invention, the above configuration can prevent a decrease in insulation performance due to gaps caused by deformation of the insulation body.

This is an overall perspective view of a building (building unit) that uses the pillar insulation material of this embodiment. This is an oblique view of the outdoor side of the building unit, viewed from the indoor side, showing how the interior wall is attached to the studs on which the pillar insulation material is installed. 10 is a perspective view showing the state in which the lower pillar insulation material is being attached to the lower portion of the stud. FIG. This is a component diagram (side view) of the pillar insulation material when laid horizontally. 5A is a vertical cross-sectional view of the position of a caulking fixing portion in the pillar insulating material of Fig. 4. FIG. 5B is a vertical cross-sectional view of the position of a wide fixing portion in the pillar insulating material of Fig. 4. An enlarged oblique view showing the crimped fixing portion around the upper end of the pillar insulation material. FIG. 1 is a schematic overall perspective view of a stud. This is an enlarged partial front view of the upper end of the partition wall as seen from the inside of the room. 1A is a front view of the stud, (b) is a side view of the stud, (c) is a partially enlarged side view of the upper end portion, and (d) is a partially enlarged side view of the lower end portion. 1A is a cross-sectional view showing the state in which the pillar insulation material is attached to the stud, and FIG. 1B is a cross-sectional view showing the position of the caulking fixing portion. FIG. 10 is a cross-sectional view showing a comparative example in which glass wool is attached to the studs as a heat insulating material. 1A and 1B are component diagrams of a heat insulating material formed from an organic material according to another comparative example, in which (a) is an overall front view, (b) is an overall side view, (c) is an end view of (a), and (d) is an end view of (b). FIG. 13 is a diagram showing the state in which the insulating material of another comparative example of FIG. 12 is attached to a stud.

Hereinafter, this embodiment will be described in detail with reference to the drawings.
1 to 13 are provided to explain this embodiment.

<Configuration> The configuration of this example is explained below.

Figure 1 is a perspective view showing a stud 2 attached to a building 1, and Figure 2 is a partially enlarged perspective view of the stud 2 viewed from a different angle. In this embodiment, as shown in Figure 3, the stud 2 is insulated by a pillar insulation material 3.

The pillar insulation material 3 in this embodiment is as shown in Figures 3 (through 6). The pillar insulation material 3 is installed in a hollow metal pillar member to insulate the pillar member. In this embodiment, the pillar insulation material 3 insulates the stud 2, which serves as the pillar member.

The studs 2 are as shown in Figures 3 and 7 (through 9). The studs 2 are long vertical members that extend in the vertical direction Z and are installed between the floor beams 4 and ceiling beams 5 of the building 1, connecting the floor beams 4 and ceiling beams 5. In this embodiment, pillar insulation material 3 is attached to the studs 2, as shown in Figures 3 and 10.

The building 1 may be of any structure, but may also be a modular building, for example. A modular building is a building 1 that can be constructed in a short period of time by transporting rectangular parallelepiped building units 8 manufactured in advance in a factory to the construction site and assembling them there.

As shown in Figure 1, the rectangular parallelepiped building unit 8 used in a unit building has a box-frame unit frame that serves as the skeleton inside. The unit frame is composed of four columns 6, four floor beams 4, and four ceiling beams 5. The four floor beams 4 connect the upper ends of the four columns 6 in a rectangular shape. The four ceiling beams 5 connect the upper ends of the four columns 6 in a rectangular shape. Floor joists 4a are installed inside the rectangular floor frame formed by the four floor beams 4, and floor boards 4b are attached to the upper surfaces of the floor joists 4a so as to cover the floor frame. Ceiling beams 5a are installed inside the rectangular ceiling frame formed by the four ceiling beams 5, and ceiling boards 5b are attached to the undersides of the ceiling beams 5a so as to cover the ceiling frame.

The studs 2 are attached at least at intervals to the surface that will become the outdoor side 11 of the building unit 8. Some studs 2 are installed between a pair of pillars 6 and away from the pillars 6, while others (corner studs 2a) are installed so that they are almost abutting the side of the pillars 6, as shown in Figure 2. The outdoor side refers to the part outside the outer periphery of the building 1. In the case of a building unit 8, the outdoor side 11 is the outside of the side that does not have an adjacent building unit 8, and the indoor side 14 is the inside of the building unit 8.

These studs 2 are primarily used to attach exterior walls 7 to the building 1. The exterior walls 7 are, for example, exterior wall panels. In this embodiment, the exterior walls 7 are installed along the side surfaces of the building units 8 in the long side direction X. The exterior walls 7 may also be installed along the side surfaces of the building units 8 in the short side direction Y. The exterior walls 7 are then fixed to the studs 2 from the inside of the studs 2 with rivets (not shown). After the stud insulation material 3 is installed on the studs 2, the interior walls 9 are attached to the interior side 14 of the room. The interior walls 9 are, for example, interior wall panels. The studs 2 are hidden from view by the interior walls 9.

As shown in Figure 3, the studs 2 are members with an approximately C-shaped cross section, and are installed with the C-shaped openings 13 facing the indoor side 14. The rivets that attach the exterior wall 7 are inserted into the interior of the studs 2 through the C-shaped openings 13, and secure the exterior wall 7 to the studs 2 approximately perpendicularly, facing in the direction from the indoor side 14 toward the outdoor side 11 (the short side direction Y of the building unit 8).

The stud 2 has a substantially uniform C-shaped cross section throughout its entire length (vertical direction Z). The longitudinal direction is the extension direction of the stud 2, and is oriented in the vertical direction Z when attached to the building unit 8. The vertical direction Z is a direction that faces almost directly upward and almost directly downward. The C-shaped cross section has a web portion 16, a flange portion 17, and a lip portion 18, and is a substantially rectangular cross section with one side open.

In the stud 2, the web portion 16 forms a surface on the outdoor side 11 that is parallel to the exterior wall 7. The flange portions 17 form a pair of surfaces that extend almost perpendicularly from both side edges of the web portion 16 located on the outdoor side 11 toward the indoor side 14. The pair of flange portions 17 are parallel to each other and have approximately the same width. The lip portions 18 extend slightly from the edges of the indoor side 14 of each flange portion 17 in directions that bring them closer together, and face each other with a gap between them to form an opening 13 between them.

The pair of lip portions 18 are located in the same plane parallel to the web portion 16 and are formed with approximately the same width. The surface on which the opening 13 is formed by the pair of lip portions 18 is the interior side 14 surface of the stud 2, and serves as the opening surface of the stud 2. The opening surface is formed with approximately the same width as the web portion 16.

Furthermore, if necessary, the ends of the studs 2 are provided with end surfaces 19 (Figure 8) such as a nearly horizontal bottom surface or top plate, either integrally or separately, for attachment to the floor beams 4 or ceiling beams 5.

Furthermore, this embodiment can have the following configuration:

(1) As shown in Figures 5 and 6 (Figure 10), the column insulation material 3 is
a heat insulating material body (21) formed of an organic material, having a first portion (21a) with a width dimension (W1) that can be inserted into the interior of the stud (2) through an opening (13) of the stud (2) that opens to the indoor side (14), and extending in the vertical direction (Z) along the stud (2);
The second portion 21b of the heat insulating material body 21 protrudes from the stud 2 toward the indoor side 14. The second portion 21b is formed to protrude on both sides of the opening 13 of the stud 2 and can be engaged with the stud 2 in the insertion direction 22.
It may also have a backing portion 24 formed in the first portion 21 a inside the stud 2 of the insulation material body 21 and abutted against the back surface of the stud 2.
The insulation body 21 may have a crimped fixing portion 25 on the side surface 21c, in which the width dimension W2 of a portion of the first portion 21a is partially wider than the width dimension W3 (Figure 3) of the opening 13 of the partition wall 2.

Here, the organic material is, for example, polystyrene, polyurethane, or another organic material. The organic material is used in the form of a foam with insulating bubbles inside, such as polystyrene foam or urethane foam, which is foamed with a foaming agent. It is preferable that the bubbles are closed cells that are independent of each other.

Insulating materials made from organic materials (organic insulating materials) are highly insulating, lightweight, have a soft surface, and retain their shape stably, making them easy to handle and use. Organic insulating materials deform less than insulating materials 26 (Figure 11) made from inorganic materials such as glass wool, which do not retain their shape and are easily deformed, as in the comparative example. However, because of their softness and elasticity, their surfaces can undergo slight elastic deformation while still retaining a fixed shape.

The openings 13 are formed continuously at approximately uniform intervals on the interior side 14 surface (opening surface) of the C-section stud 2 along almost the entire length of the stud 2. If necessary, a mounting member 27 such as a wooden brick is installed in the opening 13 of the stud 2, as shown in Figure 2. The mounting member 27 is used, for example, to mount the interior wall 9. A portion of the mounting member 27 protrudes toward the interior side 14 beyond the opening 13 (protruding portion). The interior wall 9 is fixed to the front of the protruding portion of the mounting member 27, and is mounted at a distance in the short side direction Y of the building unit 8 so as not to come into direct contact with the stud 2. This creates an insulating space between the exterior wall 7 and the interior wall 9.

In this embodiment, the mounting member 27 is provided in only one location, approximately in the center in the vertical direction Z, for the stud 2 located away from the post 6 in the long side direction X. However, for the corner stud 2a, which is installed in a state of nearly abutting the post 6, multiple mounting members 27, for example, four, are provided at intervals in the vertical direction Z, as an exception.

The width dimension W1 is the horizontal width of the first portion 21a (internal portion) of the insulation body 21 that is inserted into the stud 2 through the opening 13 in the stud 2. The width dimension W1 of the first portion 21a is set to be approximately the same as or slightly smaller than the width dimension W3 of the opening 13 in the stud 2 (W1 ≒ W3, or W1 ≦ W3). The width dimension W1 is preferably set to be smaller than the opening 13 so that the first portion 21a can easily pass through the opening 13 and does not get caught in the opening 13. Note that the horizontal width of the second portion 21b of the insulation body 21 that protrudes from the stud 2 may be larger than the width dimension W1 of the first portion 21a.

The insulation body 21 is the central portion of the long column insulation material 3 made of organic material, and has a substantially uniform cross section along its entire longitudinal length. The insulation body 21 has at least a first portion 21a that is inserted into the inside of the stud 2 through the opening 13, and a second portion 21b (portion outside the column) that protrudes toward the indoor side 14. The first portion 21a and the second portion 21b are formed continuously along the entire length of the insulation body 21. There is no clear boundary between the first portion 21a and the second portion 21b, but the position of the locking surface of the opening locking portion 23 defines the boundary.

The insulation body 21 may be formed to a length that allows it to block the opening 13 of the stud 2 with a single piece, or it may be formed in separate pieces that allow it to block the opening 13 of the stud 2 with multiple pieces. In this embodiment, the insulation body 21 is divided into two pieces so that the two pieces completely block the opening 13 of the stud 2. The two insulation bodies 21 are installed above and below the mounting member 27, respectively. The insulation body 21 may also be divided into three or more pieces depending on the installation conditions of the mounting member 27.

The first portion 21a is the rear portion of the insulation body 21 that is inserted into the internal space of the stud 2. This first portion 21a extends longitudinally with a constant width W1, but is shorter in the insertion direction 22 than the depth of the stud 2 (or the width of the flange portion 17). The depth of this first portion 21a is, for example, approximately 1/2 to 1/3 of the depth of the stud 2. The first portion 21a may be appropriately formed with an insertion aid 21d (Figure 4), such as a tapered C-surface or tapered surface, at the tip end in the insertion direction 22 to facilitate insertion into the opening 13.

The second portion 21b protruding toward the indoor side 14 is the front portion of the insulation body 21 that protrudes outside the stud 2 and is located on the indoor side 14 when the insulation body 21 is attached to the stud 2. This second portion 21b is formed with a protruding amount (thickness) that is approximately the same as or slightly smaller than the distance between the opening surface of the stud 2 and the back surface of the inner wall 9. The second portion 21b is, for example, about one-third the thickness (or protruding amount) of the first portion 21a.

The insertion direction 22 is the direction in which the insulation body 21 is attached to the stud 2, or the direction in which the first portion 21a of the insulation body 21 is inserted into the opening 13 of the stud 2. The insertion direction 22 is the direction from the indoor side 14 to the outdoor side 11. For example, in this embodiment, the insertion direction 22 is the short side direction Y of the building unit 8. However, the insertion direction 22 may also be the long side direction X.

The opening locking portion 23 is a horizontally extending portion that is formed integrally with the second portion 21b that protrudes toward the indoor side 14 of the insulation body 21 and serves as a locking flange. The opening locking portion 23 has a locking surface on the side facing the stud 2, and is locked in the insertion direction 22 from the indoor side 14 by abutting and closely contacting the opening surface (lip portion 18) on the indoor side 14 of the stud 2. The opening locking portion 23 is formed overall with a width that is approximately the same as or slightly narrower than the width of the opening surface of the stud 2. The opening locking portion 23 is formed continuously over almost the entire longitudinal length of the insulation body 21.

The rear surface of the stud 2 is formed by a web portion 16 that faces the exterior side 11 and serves as the surface to which the exterior wall 7 is attached.

The backing portion 24 is a portion of the insulation body 21 that extends integrally from the first portion 21a within the stud 2 toward the rear surface of the stud 2 in the insertion direction 22. The tip surface of the backing portion 24 abuts against the rear surface of the stud 2 (the inner surface of the web portion 16), thereby determining the amount of insertion of the insulation body 21 into the stud 2. The backing portion 24 is formed to a length that just abuts against the rear surface of the stud 2 when the opening engagement portion 23 is engaged with the opening 13 of the stud 2. In other words, the backing portion 24 is formed to a length that is the difference between the depth dimension of the stud 2 and the depth dimension of the first portion 21a.

The backing portions 24 may be provided at any position on the insulation body 21, and in any number. However, for example, providing two backing portions 24 allows the insulation body 21 to be stably maintained parallel to the studs 2. In this embodiment, the backing portions 24 are provided in approximately the same positions as the crimp fixing portions 25 in the longitudinal direction of the insulation body 21, and in the same number as the crimp fixing portions 25.

The backing portion 24 may be formed with a smaller width than the insulation body 21. The backing portion 24 may also be symmetrical. In this embodiment, the backing portion 24 is formed with multiple steps so that it tapers gradually toward the tip when viewed in the longitudinal direction. The width of the tip of the backing portion 24 is reduced to approximately one-third or less the width of the web portion 16.

The side surface 21c is primarily the surface of the first portion 21a of the insulation body 21 within the stud 2 that faces the flange portion 17 of the stud 2. At least a portion of the side surface 21c on the opening locking portion 23 side lightly contacts the opening 13 (such as the tip of the lip portion 18) or faces it with a small gap. The crimp fixing portion 25 is provided on this side surface 21c. Note that the width dimension W1 mentioned above is the distance between the two side surfaces 21c of the first portion 21a at a position where the crimp fixing portion 25 is not present.

The width dimension W2 of a portion of the insulation body 21 is the horizontal dimension at the position where the crimped fixing portion 25 is provided on the side surface 21c. This position includes the first portion 21a and the crimped fixing portions 25 on both sides, so the width dimension W2 is wider than the width dimension W1 at a position where there are no crimped fixing portions 25 by the amount of the crimped fixing portions 25 on both sides (W2 > W1).

The width dimension W3 of the opening 13 is the distance between the tips of the lip portions 18 of the studs 2. This width is essentially constant throughout the entire length of the studs 2.

The crimping portion 25 is a portion that crimps the insulation material body 21 to the edge of the opening 13 of the stud 2 (such as the tip of the lip portion 18). The crimping portion 25 utilizes the restoring force due to slight elastic deformation of the insulation material body 21, which is made of an organic material, to press and fix the insulation material body 21 to the opening 13 (crimping). The crimping portion 25 is bent or crushed within the range of elastic deformation and inserted into the opening 13, and the restoring force of that portion as it tries to return to its original state presses and holds the insulation material body 21 in the opening 13. To achieve this, the width W2 of the crimping portion 25 is made larger than the width W3 of the opening 13 (W2 > W3) to the extent that the required pressing force can be obtained, within the range of elastic deformation.

The vertical Z dimension of the crimp fixing portion 25 is preferably set to, for example, approximately 10% or less of the overall length of the insulation material body 21. This allows for optimal insertion ease and crimping force of the insulation material body 21 into the opening 13 of the stud 2. If the vertical Z dimension of the crimp fixing portion 25 is greater than approximately 10% of the overall length of the insulation material body 21, the crimping force into the opening 13 will be higher, but ease of insertion will be compromised, resulting in reduced installation workability. Furthermore, if the vertical Z dimension of the crimp fixing portion 25 is made smaller than the above, ease of insertion will be improved, but sufficient crimping force will not be obtained.

The crimp fixing portion 25 may also be provided with an introduction tapered portion 25a (Figure 5) to facilitate insertion into the opening 13, or a locking retaining portion such as a stopper surface or barb to prevent removal from the opening 13. The introduction tapered portion 25a is formed on the front side of the crimp fixing portion 25 in the insertion direction 22. The locking retaining portion is formed on the rear side of the crimp fixing portion 25 in the insertion direction 22.

(2) A plurality of crimp fixing portions 25 may be provided on the heat insulating material body 21 (FIGS. 4 and 5).
One of the multiple crimp fixing portions 25 may be a wide fixing portion 31 having a width dimension W4 wider than the other crimp fixing portions 25, and may be provided at a position other than the center of the heat insulating material body 21.
The stud 2 may have a wide receiving portion 32 for accommodating the wide fixing portion 31 at a position that matches the wide fixing portion 31 of the opening 13 (FIGS. 7 and 8).

Here, a single crimp fixing portion 25 may be provided for the insulation body 21, but it is preferable to provide multiple crimp fixing portions 25. Providing multiple crimp fixing portions 25 for the insulation body 21 means that crimp fixing portions 25 are present at multiple locations along the length of the insulation body 21. Multiple crimp fixing portions 25 can be provided in two locations, or three or more locations. In this embodiment, there are two crimp fixing portions 25.

As shown in Figure 5(b), the wide fixing portion 31 is a crimped fixing portion 25 having a stronger crimping force (pressing force) than the other crimped fixing portions 25 (Figure 5(a)). The wide fixing portion 31 has a wider width dimension W4, including the first portion 21a, than the other crimped fixing portions 25, thereby increasing the amount of deformation recovery when crimped to the opening 13, thereby increasing the crimping force of the wide fixing portion 31. By making the width dimension W4 of the wide fixing portion 31 wider than the other crimped fixing portions 25, it is possible to crimp a wider width. For example, the width dimension W4 of the wide fixing portion 31 is approximately 2 mm larger than the width dimension W1 of the other crimped fixing portions 25. However, the difference between the width dimension W1 of the other crimped fixing portions 25 and the width dimension W4 of the wide fixing portion 31 is not limited to 2 mm. If there are multiple other crimped fixing portions 25, they should all have the same width dimension W2 so that uniform crimping force is obtained. Note that the crimped fixing portion 25 in the broad sense includes the wide fixing portion 31. The crimped fixing portion 25 in the narrow sense refers to only the other crimped fixing portions 25 excluding the wide fixing portion 31.

The wide fixing portion 31 may be located in the longitudinal center of the insulation body 21, but is preferably located at a position other than the longitudinal center. A position other than the center of the insulation body 21 refers to a position that will be displaced to a position different from its original position when the insulation body 21 is turned upside down. The center of the insulation body 21 will not be displaced even when turned upside down, and will therefore remain in the same position.

In addition, to indicate the correct installation orientation in the vertical direction Z, the insulation body 21 may have a mark 33 (Figure 3) indicating the correct orientation, such as an arrow, formed on the surface of the second portion 21b that protrudes toward the indoor side 14 so that it can be seen from the indoor side 14.

The position of the opening 13 that coincides with the wide fixing portion 31 is the position into which the wide fixing portion 31 is inserted when the insulation body 21 is installed in the correct orientation. When the insulation body 21 is turned upside down, the wide fixing portion 31 is displaced in the vertical direction Z, resulting in this position being a position into which the wide fixing portion 31 cannot be inserted.

The wide receiving portion 32 is the portion that receives the wide fixing portion 31 formed in the opening 13 of the stud 2. The wide receiving portion 32 is an exceptional portion where the width dimension W5 is locally increased relative to the opening 13, which generally has a constant width dimension W3. Because the wide receiving portion 32 has a wide width dimension W5, the other crimp fixing portions 25 cannot crimp the wide receiving portion 32 very strongly, or cannot crimp the wide receiving portion 32 at all. The wide receiving portion 32 is set to a width dimension W5 that allows only the wide receiving portion 32 to be crimped with the required crimping force. It is preferable that the width dimension W5 of the wide receiving portion 32 be wider than the other crimp fixing portions 25 by the same amount that the wide fixing portion 31 is wider than the other crimp fixing portions 25. For example, in the example above, the wide receiving portion 32 would have a width dimension W5 that is approximately 2 mm larger overall than the width dimension W3 of the other crimp fixing portions 25. However, the difference between the width dimension W3 of the opening 13 and the width dimension W5 of the wide receiving portion 32 is not limited to 2 mm.

The wide fixing portion 31 and the wide receiving portion 32 are provided assuming that there will be dimensional errors in the opening 13 of the stud 2. Therefore, the wide fixing portion 31 and the wide receiving portion 32 are actually set to have widths W4 and W5 that take into account the magnitude of the error in the width dimension W3 of the opening 13 and avoid the impact of the error when it becomes larger. That is, the width dimension W4 of the wide fixing portion 31 and the width dimension W5 of the wide receiving portion 32 are set based on the value of the error in the width dimension W3 of the opening 13. As a result, the width dimension W4 of the wide fixing portion 31, the width dimension W5 of the wide receiving portion 32, the width dimension W2 of the crimp fixing portion 25, the width dimension W3 of the opening 13, and the width dimension W1 of the insulation body 21 increase in this order (W4 > W5 > W2 > W3 > W1).

The wide receiving portion 32 can be formed, for example, by cutting out the lip portion 18 of the stud 2. As shown in Figure 9, the wide receiving portion 32 can be cut out to an appropriate size up to the point where the lip portion 18 disappears. In this case, the wide fixing portion 31 is pressed against the inner surface of the flange portion 17. The lip portion 18 can also be cut out over its entire width, including part of the flange portion 17.

If the lip portion 18 remains on the wide receiving portion 32, the boundary between the wide receiving portion 32 and other parts of the opening 13 may be left as a right-angled step, or it may be cut out at an angle to eliminate sharp corners and create an inclined step.

(3) As shown in FIG. 3, the crimp fixing portion 25 may be provided at two locations, near the upper end (H1) and near the lower end (L1) of the heat insulating material body 21.
As shown in FIG. 7 , the wide receiving portion 32 may be provided at a position that coincides with the wide fixing portion 31 near at least one of the upper end (H2) and the lower end (L2) of the stud 2.

Here, the crimp fixing portions 25 may be provided at positions other than the two positions near the upper end (H1) and the lower end (L1) of the insulation body 21, but it is preferable to provide the crimp fixing portions 25 at two positions: near the upper end (H1) and the lower end (L1) of the insulation body 21.

The upper end (H1) of the insulation body 21 is the upper end of the insulation body 21. The vicinity of the upper end (H1) of the insulation body 21 is the upper end of the insulation body 21 and its surrounding area. For ease of explanation, the "upper end (H1)" may also include the "upper end (H1) and its vicinity."

The lower end (L1) of the insulation body 21 is the lower end of the insulation body 21. The vicinity of the lower end (L1) of the insulation body 21 is the lower end of the insulation body 21 and its surrounding area. For simplicity of explanation, "lower end (L1)" may also include "lower end (L1) and its vicinity."

For example, if the length of the insulation body 21 is approximately equal to the length of the stud 2, the upper end (H1) and lower end (L1) of the insulation body 21 will approximately coincide with the upper end (H2) and lower end (L2) of the stud 2, respectively.

For example, if the length of the insulation body 21 is not equal to the length of the stud 2, the upper end (H1) and lower end (L1) of the insulation body 21 may be positioned differently from the upper end (H2) and lower end (L2) of the stud 2.

In other words, if the length of the insulation body 21 is made approximately half the length of the stud 2, as shown in Figure 3, the upper end (H1) of the lower insulation body 21 will be located approximately in the middle of the stud 2, and the lower end (L1) will be approximately aligned with the lower end (L2) of the stud 2. Furthermore, the upper end (H1) of the upper insulation body 21 will be located approximately in the middle of the stud 2, and the lower end (L1) will be approximately aligned with the upper end (H2) of the stud 2.

Of the two crimped fixing portions 25 at the upper end (H1) and lower end (L1) of the insulation body 21, one is a regular fixing portion and the other is a wide fixing portion 31. The wide fixing portion 31 may be provided at either the upper end (H1) or the lower end (L1) of the insulation body 21.

The wide receiving portion 32 may be located in a position other than near the upper end (H2) or lower end (L2) of the stud 2, but it is preferable to locate the wide receiving portion 32 near at least one or both of the upper end (H2) and lower end (L2) of the stud 2.

The upper end (H2) of the stud 2 is the upper portion of the stud 2 that is near the ceiling beam 5. The vicinity of the upper end (H2) of the stud 2 is the upper portion of the stud 2 that is near the ceiling beam 5 and its surrounding area. For ease of explanation, the "upper end (H2)" may also include "the vicinity of the upper end (H2)."

The lower end (L2) of the stud 2 is the lower portion of the stud 2 that is near the floor beam 4. The vicinity of the lower end (L2) of the stud 2 is the lower portion of the stud 2 that is near the floor beam 4 and its surrounding area. For ease of explanation, the "lower end (L2)" may also include "the vicinity of the lower end (L2)."

More specifically, for example, if the length of the insulation body 21 is approximately equal to the length of the stud 2, the wide fixing portion 31 may be provided at the upper end (H1) or lower end (L1) of the insulation body 21. The wide receiving portion 32 may be provided at either the upper end (H2) or lower end (L2) of the stud 2, at a position that coincides with the wide fixing portion 31. The opening 13 of the stud 2 receives the crimp fixing portion 25 of the insulation body 21. The wide receiving portion 32 of the stud 2 receives the wide fixing portion 31 of the insulation body 21.

For example, if the length of the insulation body 21 is approximately half the length of the stud 2, the wide fixing portion 31 of the lower insulation body 21 is provided at the upper end (H1) or lower end (L1) of the insulation body 21. The wide receiving portion 32 is then provided at either the middle or lower end (L2) of the stud 2, at a position that coincides with the wide fixing portion 31.

Similarly, the wide fixing portion 31 of the upper insulation body 21 is provided at the upper end (H1) or lower end (L1) of the insulation body 21, and the wide receiving portion 32 is provided at either the upper end (H2) or approximately the middle of the stud 2, in a position that coincides with the wide fixing portion 31.

The opening 13 of the stud 2 receives the crimped fixing portion 25 of the insulation body 21. The wide-width receiving portion 32 of the stud 2 receives the wide-width fixing portion 31 of the upper insulation body 21 and the wide-width fixing portion 31 of the lower insulation body 21, respectively. The wide-width fixing portion 31 of the upper insulation body 21 and the wide-width fixing portion 31 of the lower insulation body 21 may be provided on the same longitudinal side, or on different sides.

In this embodiment, the wide fixing portion 31 is provided at the lower end (L1) of the lower insulation body 21, and the wide receiving portion 32 is provided at the lower end (L2) of the stud 2. The wide fixing portion 31 is provided at the upper end (H1) of the upper insulation body 21, and the wide receiving portion 32 is provided at the upper end (H2) of the stud 2. The wide fixing portion 31 is provided on different longitudinal sides of the lower insulation body 21 and the upper insulation body 21. The wide receiving portion 32 is provided both near the upper end (H2) and near the lower end (L2) of the stud 2.

It is preferable that the regular crimp fixing portion 25 and the wide fixing portion 31 be positioned so that they do not overlap at all or very little when the insulation body 21 is turned upside down.

In Figure 4, the normal crimp fixing portion 25 is located closer to one end of the insulation body 21. The wide fixing portion 31 is located closer to the other end of the insulation body 21, approximately the length of the normal crimp fixing portion 25. Conversely, the wide fixing portion 31 may be located closer to the other end of the insulation body 21, and the normal crimp fixing portion 25 may be located closer to the other end of the insulation body 21, and the normal crimp fixing portion 25 may be located closer to the length of the wide fixing portion 31, from one end of the insulation body 21.

In this case, by positioning the regular crimp fixing portion 25 and the wide fixing portion 31 slightly away from the end of the insulation body 21, the separated portion can be used as an adjustment allowance 21e for the length of the insulation body 21. In other words, the length of the insulation body 21 can be fine-tuned (on-site adjustment) by cutting off the adjustment allowance 21e at the end, as needed. The adjustment allowance 21e can be provided on either or both the crimp fixing portion 25 side and the wide fixing portion 31 side. If provided on both sides, it may, but does not have to, be of equal size.

<Function> The function of this embodiment is explained below.

For example, in a building unit 8, an exterior wall 7 is attached with rivets from the interior side 14 to a stud 2 installed between floor beams 4 and ceiling beams 5. Mounting members 27, such as wooden bricks, are attached to the stud 2 from the interior side 14. Then, as in the comparative example of Figure 11, insulation material 41 is attached to the inside of the exterior wall 7 from the interior side 14, covering the exterior wall 7. This insulation material 41 may be inorganic, such as glass wool. Then, insulation material 26 is attached to the stud 2 from the interior side 14.

The insulation material 26 in the comparative example uses an inorganic material such as glass wool, similar to the insulation material 41. In this case, the insulation material 26 is attached by deforming it to pass through the opening 13 and pushing it into the inside of the stud 2.

However, when insulating material 26, such as glass wool, which is easily deformed and has an indeterminate shape, is installed inside the stud 2, deformation of the insulating material 26 can easily create gaps between the opening 13. This causes air to enter and exit the stud 2 through the gaps, resulting in reduced thermal performance. To prevent this, glass wool that is larger than the internal volume of the stud 2 is packed inside, but making it larger takes time and effort to insert the glass wool into the stud 2, reducing productivity. Making it larger also increases the cost of the glass wool.

In order to prevent the deterioration of insulating performance caused by gaps due to deformation as described above, and the reduced productivity of inserting larger glass wool, the use of organic insulation 42, as shown in Figures 12 and 13, is being considered. Organic insulation 42 has shape retention properties and maintains a stable, consistent shape, making it less likely to develop gaps due to deformation and easier to attach to studs 2 than glass wool.

When the insulation 42 is made from an organic material, a means of fixing the insulation 42 to the studs 2 is required. For example, if the insulation 42 is attached to the studs 2 with adhesive tape, installation is relatively easy, but with adhesive tape it is difficult to keep the insulation 42 in the same position for an extended period of time, such as the service life of the building 1.

In response to this, since mounting members 27 are installed on the studs 2, it is possible to use the mounting members 27 to hold the insulation material 42 in place. For example, it is possible to provide a hole 43 in the insulation material 42 that fits into a portion of the mounting member 27 that protrudes further toward the interior side 14 than the opening 13 of the mounting member 27 at the portion that interferes with the insulation material 42. Then, by tightly fitting the hole 43 into the mounting member 27, the mounting member 27 can be used to hold the insulation material 42 to the studs 2 for an extended period of time.

However, aligning and fitting the hole 43 to the mounting member 27 is time-consuming and labor-intensive, resulting in poor productivity. Furthermore, problems arise with the dimensional accuracy, positional accuracy, and installation accuracy between the mounting member 27 and the hole 43. Furthermore, the cross-sectional shape of the insulating material 42 with the hole 43 is not uniform along its entire length, resulting in a complex structure, poor storage properties, and weakened strength around the hole 43.

Furthermore, the mounting members 27 for the studs 2 themselves incur component and installation costs, and can result in thermal performance issues, so there is a desire to reduce their number as much as possible. Currently, it is structurally possible to reduce the number of studs 2 other than the corner studs 2a to just one location. In this case, the insulation material 42 will no longer be held in place by the fit between the hole 43 and the mounting member 27.

In this embodiment, a pillar insulation material 3 is provided that has a crimp fixing portion 25 integral with the insulation material body 21. The pillar insulation material 3 is then crimped to the opening 13 of the stud 2 using the crimp fixing portion 25.

For example, for a stud 2 with only one mounting member 27, the pillar insulation material 3 can be installed separately at the top and bottom, and the upper and lower pillar insulation materials 3 can be attached separately to the upper and lower sides of the mounting member 27 on the stud 2. The pillar insulation material 3 can also be installed at an angle, for example, by inserting the top or bottom end first into the opening of the stud 2.

The pillar insulation material 3 is then attached to the stud 2 without any gaps by inserting the first portion 21a of the insulation material body 21 from the indoor side 14 through the opening 13 into the inside of the stud 2 until the backing portion 24 abuts against the rear surface of the stud 2, and engaging the opening locking portion 23 with the opening surface of the stud 2. At this time, the multiple crimping fixing portions 25 provided on the insulation material body 21 crimp and fix the insulation material body 21 to the edge of the opening 13 of the stud 2 at multiple positions.

This allows the pillar insulation material 3 to be self-held on the stud 2 using the crimp fixing portion 25, without relying on the mounting member 27. Furthermore, the pillar insulation material 3 does not require a separate fixing means such as adhesive tape. The pillar insulation material 3 has a simple shape with a nearly uniform cross section.

Because it does not rely on mounting members 27, the insulation body 21 does not have any particular problems with the dimensional accuracy or positional accuracy of the crimped fixing portion 25. Furthermore, even though the insulation body 21 has a crimped fixing portion 25, it has a substantially uniform cross-section throughout its entire length, so there are no particular concerns about strength. In other words, it does not have the drawbacks of the insulation 42 in Figures 12 and 13.

In this case, because the studs 2 do not require the same high dimensional precision as the pillars 6, ceiling beams 5, and floor beams 4 that make up the unit frame, there is a certain degree of error in the dimensions of the openings 13 of the studs 2. As a result, it is possible that the openings 13 of the studs 2 may be wider or narrower than the design value. If the openings 13 are narrow, they can be used without any particular problems, but if the openings 13 are wide, the crimp fixing portions 25 will not catch well, and there is a risk that they will not be able to hold the insulation material body 21 properly.

Therefore, the pillar insulation material 3 has one of the crimped fixing portions 25 replaced with a wide fixing portion 31. As a result, even if the opening 13 of the stud 2 is wider than the design value due to dimensional error, the wide fixing portion 31 can be used to attach the pillar insulation material 3 to the stud 2 and securely hold it in place with the wide fixing portion 31.

In other words, if the opening 13 in the stud 2 is as designed or narrower than the designed value, the pillar insulation material 3 is used in the correct orientation. The wide fixing portion 31 is installed at the position of the wide receiving portion 32, and is crimped and fixed between the wide receiving portion 32. The normal crimping fixing portion 25 is also crimped and fixed to the opening 13.

If the opening 13 of the stud 2 is wider than designed, the pillar insulation material 3 is turned upside down and the position of the wide fixing portion 31 is changed before use. The wide fixing portion 31 is installed at a position on the opening 13 other than the wide receiving portion 32, and is crimped and fixed to the opening 13. The wide fixing portion 31 fits into an opening 13 that is wider than the design value. Therefore, even if the opening 13 of the stud 2 is wider than the design value, the pillar insulation material 3 can be held in place by the stud 2.

<Effects> This embodiment provides the following effects:

(Effect 1) The pillar insulation material 3 may be made of an organic material. Pillar insulation material 3 made of an organic material has shape retention properties and maintains a fixed shape, so it does not flexibly deform like glass wool, which can create gaps between the opening 13 and the material, causing air to enter and exit through the gaps and resulting in a decrease in insulation performance. In other words, pillar insulation material 3 made of an organic material can prevent a decrease in insulation performance caused by gaps due to deformation of the insulation material body 21.

The organic pillar insulation 3 may have an insulation body 21, an opening locking portion 23, and a backing portion 24. By simply inserting the insulation body 21 into the opening 13 of the stud 2 from the indoor side 14, the backing portion 24 abuts against the rear surface of the stud 2, and the opening locking portions 23 lock onto both sides of the opening 13 of the stud 2, closing the opening 13 and attaching it to the stud 2 without any gaps. Having the backing portion 24 in the insulation body 21 allows the insulation body 21 to be small in volume and to be installed accurately inside the stud 2.

In this case, the insulation body 21 may be crimped to the opening 13 by deforming the crimp fixing portion 25, which is formed so that the width dimension W2 of part of the side surface 21c of the first portion 21a is partially wider than the width dimension W3 of the opening 13 of the stud 2. As a result, the insulation body 21 is self-retained to the stud 2 by the restoring force of the crimp fixing portion 25.

As a result, the pillar insulation material 3 does not require a separate fixing means, such as adhesive tape, to fix the insulation material body 21 to the stud 2. Furthermore, the pillar insulation material 3 does not require the use of mounting members 27, such as wooden bricks, to attach the insulation material body 21 to the stud 2. Therefore, the building unit 8 can reduce the number of mounting members 27, thereby reducing the cost of the mounting members 27 and the effort required for installation.

The pillar insulation material 3 can self-hold the insulation material body 21 in the same position on the stud 2 for a long period of time thanks to the crimping fixing portion 25. The crimping fixing portion 25 also prevents the insulation material body 21 from falling off the stud 2 due to external vibrations. Furthermore, the crimping fixing portion 25 can prevent noise caused by rattle of the insulation material body 21. The insulation material body 21 continues to provide stable insulation effects without change over the service life of the building 1, for example, for a long period of time of more than 60 years.

(Effect 2) The pillar insulation material 3 may have multiple crimp fixing portions 25 on the insulation material body 21. This allows the insulation material body 21 to be stably crimped and fixed to the opening 13 of the stud 2 at multiple locations using the multiple crimp fixing portions 25.

The pillar insulation material 3 may have one of the multiple crimped fixing portions 25 as a wide fixing portion 31 that is wider than the other crimped fixing portions 25, and may be located in a position other than the center of the insulation material body 21. This allows the wide fixing portion 31 to have a stronger crimping force than the other crimped fixing portions 25. Then, by turning the insulation material body 21 upside down and changing the position of the wide fixing portion 31 in the vertical direction Z, the wide fixing portion 31 can be used in a different position in the opening 13.

The stud 2 has a wide receiving portion 32 that accommodates the wide fixing portion 31 at a position that coincides with the wide fixing portion 31 of the opening 13. This allows the wide fixing portion 31 to be received by the wide receiving portion 32 in the normal state. Furthermore, by turning the insulation body 21 upside down, the wide fixing portion 31 can be used in a position different from the wide receiving portion 32.

Therefore, if the opening 13 of the stud 2 has a dimensional error and is wider, the insulation body 21 can be installed upside down in the opening 13, and the insulation body 21 can be crimped to the opening 13 using the wide fixing portion 31. Therefore, the pillar insulation material 3 can directly accommodate dimensional errors in the opening 13.

(Effect 3) In the column insulation material 3, the crimp fixing portions 25 may be provided in two locations: near the upper end (H1) and near the lower end (L1) of the insulation material body 21. This allows the number of crimp fixing portions 25 to be reduced to a minimum. In addition, the crimp fixing portions 25 can be installed in locations that are easy to understand and handle.

In the pillar insulation material 3, the wide receiving portion 32 may be provided in a position that coincides with the wide fixing portion 31 near at least one of the upper end (H2) and lower end (L2) of the stud 2. This allows the wide receiving portion 32 to be provided in a position on the stud 2 that is easy to process and handle.

The wide fixing portion 31 can also be located near either the upper end (H1) or the lower end (L1) of the insulation body 21, whichever is easier to form and handle. Positioning the wide fixing portion 31 at the end of the insulation body 21 makes it easier to attach the insulation body 21 to the opening 13 in the stud 2.

2 stud 3 pillar insulation material 13 opening 14 indoor side 16 web portion (rear surface)
21: Insulation body 21a: First portion 21b: Second portion 21c: Side surface 22: Insertion direction 23: Opening engagement portion 24: Backing portion 25: Crimping fixing portion 31: Wide fixing portion 32: Wide receiving portion H1: Upper end portion (column insulation material)
L1 Bottom end (pillar insulation)
H2 Upper end (stud)
L2 Lower end (stud)
W1 Width dimension (first part)
W2 Width dimension (crimped fixing part)
W3 Width dimension (opening)
W4 Width dimension (wide fixed part)
W5 Width dimension (wide receiving part)
Z vertical direction

Claims (3)

A pillar insulation material for insulating metal studs with a C-shaped cross section,
a heat insulating material body formed of an organic material, having a first portion with a width dimension that can be inserted into the interior of the stud through an opening of the stud that opens to the indoor side, and extending in the vertical direction along the stud;
an opening locking portion formed on a second portion of the thermal insulation body that protrudes from the stud toward the indoor side so as to protrude on both sides of the opening of the stud and that can be locked to the stud in an insertion direction;
a backing portion formed in the first portion of the thermal insulation body within the stud and abutting against a rear surface of the stud;
The insulating material for pillars is characterized in that the insulating material body has a crimped fixing portion on the side, in which the width dimension of part of the first part is partially wider than the width dimension of the opening in the partition wall. The pillar insulation material according to claim 1,
The crimp fixing portion is provided in plurality on the heat insulating material body,
One of the plurality of crimp fixing portions is a wide fixing portion having a width dimension wider than the other crimp fixing portions, and is provided at a position other than the center of the thermal insulation body,
The pillar insulation material is characterized in that the stud has a wide receiving portion that accommodates the wide fixing portion at a position that coincides with the wide fixing portion of the opening. The pillar insulation material according to claim 2,
The crimp fixing portion is provided at two locations, one near the upper end portion and one near the lower end portion of the heat insulating material body,
An insulating material for pillars, characterized in that the wide-width receiving portion is provided at a position that coincides with the wide-width fixing portion in at least one of the vicinity of the upper end and the lower end of the partition wall.