JP2023141419A - Column insulation material - Google Patents

Abstract

To mainly prevent deterioration of insulation performance due to gaps caused by deformation of the insulation material body.SOLUTION: The present invention relates to a column insulation material 3 that insulates a metal stud having a C-shaped cross section. The column insulation material 3 includes: an insulation material body 21 made of an organic material and extending in the vertical direction Z along the stud, having a first portion 21a with a width that can be inserted and placed inside the stud from the opening of the stud opening to an indoor side 14; an opening locking portion 23 formed on a second portion 21b protruding from the stud of the insulation material body 21 toward the indoor side 14 so as to protrude to both sides of the opening of the stud, and can be locked to the stud in an insertion direction 22; and a backing portion 24 that is formed in the first portion 21a in the stud of the insulation material body 21 and abuts against the back surface of the stud. The insulation material body 21 has a caulking fixing portion 25 on a side surface 21c in which the width of a portion of the first portion 21a is partially wider than the width of the opening of the stud.SELECTED DRAWING: Figure 6

Description

The present invention relates to a heat insulating material for columns.

BACKGROUND ART In order to provide heat insulation properties to buildings such as houses, a heat insulating material is installed inside the walls (for example, see Patent Document 1). Insulation material is also attached to the inside of the columns installed inside the wall.

Japanese Patent Application Publication No. 2011-196122

If a heat insulating material such as glass wool that does not retain its shape and is easily deformed and does not have a fixed shape is installed inside the pillar, the heat insulating material may deform and create a gap between the pillar and the pillar. , there was a problem that the insulation performance deteriorated.

Therefore, the main purpose of the present invention is to contribute to the improvement of the above-mentioned problems.

To solve the above problems, the present invention
A column insulation material that insulates a metal stud with a C-shaped cross section,
a heat insulating material body made of an organic material, having a first portion with a width dimension that can be inserted and placed inside the stud from an opening of the stud opening toward the indoor side, and extending in the vertical direction along the stud;
an opening lock that is formed on a second portion of the heat insulating material main body that projects from the stud to the indoor side so as to protrude to both sides of the opening of the stud, and that can be locked to the stud in the insertion direction. A stop and
a backing part formed in the first portion in the stud of the heat insulating material main body and abutting against the inner surface of the stud;
The heat insulating material main body is characterized in that it has a caulking fixing portion on a side surface in which a width of a portion of the first portion is partially wider than a width of the opening of the stud.

According to the present invention, with the above configuration, it is possible to prevent a decrease in heat insulation performance due to a gap caused by deformation of the heat insulating material main body.

FIG. 1 is an overall perspective view of a building (building unit) that uses the pillar insulation material according to the present embodiment. FIG. 2 is a perspective view of the outdoor side of the building unit viewed from the indoor side, showing how the inner wall is attached to the studs on which the pillar insulation material is installed. FIG. 3 is a perspective view showing a state in which a lower post insulating material is attached to a lower part of a stud. FIG. 2 is a parts diagram (side view) of the pillar insulation material as seen from the side. (a) is a longitudinal cross-sectional view of the position of the caulking fixing part in the pillar heat insulating material of FIG. 4. (b) is a vertical cross-sectional view of the position of the wide fixing part in the pillar heat insulating material of FIG. 4. FIG. 3 is an enlarged perspective view showing a caulking fixing part around the upper end of the pillar insulating material. It is a schematic whole perspective view of a stud. It is a partially enlarged front view of the upper end of the stud seen from the indoor side. It is a parts diagram of a stud. (a) is an overall front view, (b) is an overall side view, (c) is a partially enlarged side view of the upper end, and (d) is a partially enlarged side view of the lower end. FIG. 2 is a cross-sectional view showing a state in which a post insulating material is attached to a stud. (a) is a sectional view of the position of the caulking fixing part, and (b) is a sectional view of the position of the wide fixing part. FIG. 3 is a cross-sectional view showing a comparative example in which glass wool is attached to studs as a heat insulating material. FIG. 7 is a component diagram of a heat insulating material made of an organic material according to another comparative example. (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 a state in which the heat insulating material of another comparative example of FIG. 12 is attached to a stud.

Hereinafter, this embodiment will be described in detail using the drawings.
1 to 13 are for explaining this embodiment.

<Structure> The structure of this embodiment will be explained below.

FIG. 1 is a perspective view showing a stud 2 attached to a building 1, and FIG. 2 is a partially enlarged perspective view of the stud 2 seen from another angle. In this embodiment, as shown in FIG. 3, the studs 2 are insulated by a post insulating material 3.

The pillar heat insulating material 3 of this example is as shown in FIG. 3 (-FIG. 6). The pillar heat insulating material 3 is a member installed in a hollow metal pillar member to insulate the pillar member. In this embodiment, the pillar heat insulating material 3 insulates the stud 2 as a pillar member.

The stud 2 is as shown in FIGS. 3 and 7 (-FIG. 9). The stud 2 is a long vertical member that extends in the vertical direction Z, is installed between the floor beam 4 and the ceiling beam 5 of the building 1, and connects the floor beam 4 and the ceiling beam 5. In this embodiment, a post insulating material 3 is attached to the stud 2, as shown in FIGS. 3 and 10.

The building 1 may have any structure, but may be a unit building, for example. The unit 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 at a factory to a construction site and assembling them at the construction site.

As shown in FIG. 1, a rectangular parallelepiped building unit 8 used in a unit building is provided with a unit frame having a box rigid frame structure as a 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 pillars 6 in a rectangular shape. The four ceiling beams 5 connect the upper ends of the four pillars 6 in a rectangular shape. A floor joist 4a is installed inside a rectangular floor frame composed of four floor beams 4, and a floor board 4b is attached to the upper surface of the floor joist 4a so as to cover the floor frame. A ceiling beam 5a is installed inside a rectangular ceiling frame made up of four ceiling beams 5, and a ceiling plate 5b is attached to the lower surface of the ceiling beam 5a so as to cover the ceiling frame.

A plurality of studs 2 are attached to at least the outdoor side 11 of the building unit 8 at intervals. The studs 2 are installed between a pair of columns 6 and separated from the columns 6, and as shown in FIG. 2, studs 2 are installed almost in contact with the sides of the columns 6 (corner studs 2a). There is. Note that the outdoor area is a portion outside the outer peripheral surface of the building 1. In the case of the building unit 8, the outdoor side 11 is the outside of the side where there is no adjacent building unit 8, and the indoor side 14 is the inside of the building unit 8.

This stud 2 is mainly used for attaching an outer wall 7 to the building 1. The outer wall 7 is, for example, an outer wall panel. In this embodiment, the outer wall 7 is installed along the side surface of the building unit 8 in the long side direction X. The outer wall 7 may be installed along the side surface of the building unit 8 in the short side direction Y. The outer wall 7 is fixed to the stud 2 from inside the stud 2 with rivets (not shown). The inner wall 9 is attached to the stud 2 from the indoor side 14 after the column heat insulating material 3 is attached. The inner wall 9 is, for example, an inner wall panel. The studs 2 are hidden from view by the inner wall 9.

As shown in FIG. 3, the stud 2 is a member having a substantially C-shaped cross section, and is installed with the C-shaped opening 13 facing the indoor side 14. Then, the rivets that attach the exterior wall 7 are inserted into the inside of the stud 2 through the C-shaped opening 13 of the stud 2, and are inserted in the direction from the indoor side 14 to the outdoor side 11 (short side direction Y of the building unit 8). , the outer wall 7 is fixed to the stud 2 almost perpendicularly.

The stud 2 has a substantially uniform C-shaped cross section over the entire length in the longitudinal direction (vertical direction Z). The longitudinal direction is the direction in which the studs 2 extend, and is oriented in the vertical direction Z when attached to the building unit 8. The vertical direction Z is a direction facing almost directly above and almost directly below. 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 that is open on one side.

In the stud 2, the web portion 16 is a surface on the outdoor side 11 parallel to the outer wall 7. The flange portion 17 is a pair of surfaces extending substantially 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 equal widths. The lip portions 18 extend slightly from the edge of the indoor side 14 of each flange portion 17 in a direction toward each other, and are opposed to each other with a gap to form an opening 13 therebetween.

The pair of lip portions 18 are located in the same plane parallel to the web portion 16 and are formed to have substantially equal widths. The surface where the opening 13 is formed by the pair of lip portions 18 is the indoor side 14 surface of the stud 2, and becomes the opening surface of the stud 2. The opening surface is formed to have approximately the same width as the web portion 16.

In addition, at the end of the stud 2, an almost horizontal end surface part 19 (Fig. 8) such as a bottom surface or a top plate is integrally or separately provided for attachment to the floor beam 4 or ceiling beam 5, if necessary. It will be done.

Furthermore, this embodiment can include the following configuration.

(1) As shown in FIGS. 5 and 6 (FIG. 10), the pillar insulation material 3 is
It is formed of an organic material, has a first portion 21a with a width dimension W1 that can be inserted into the inside of the stud 2 from the opening 13 of the stud 2 opening to the indoor side 14, and extends in the vertical direction Z along the stud 2. A heat insulating material body 21;
A second portion 21b of the heat insulating material body 21 that protrudes from the stud 2 toward the indoor side 14 is formed so as to protrude to both sides of the opening 13 of the stud 2, and can be locked to the stud 2 in the insertion direction 22. an opening locking part 23;
The heat insulating material main body 21 may include a backing portion 24 that is formed in the first portion 21a in the stud 2 and abuts against the back surface of the stud 2.
The heat insulating material main body 21 has a caulking fixing portion 25 on a side surface 21c in which a width W2 of a portion of the first portion 21a is partially wider than a width W3 (FIG. 3) of the opening 13 of the stud 2. It's okay.

Here, the organic material is, for example, an organic material such as polystyrene or polyurethane. The organic material, such as styrene foam or urethane foam, is used by foaming it with a foaming agent to form a foam having insulation cells inside. The cells are preferably independent and closed cells.

Insulation materials made from organic materials (organic insulation materials) have high insulation properties, are lightweight, have a soft surface, and have shape retention properties, making them easy to handle and use as they maintain a stable and constant shape. . For example, the amount of deformation of the organic heat insulating material is smaller than that of the heat insulating material 26 (Fig. 11), which is made of an inorganic material such as glass wool and does not retain its shape and is easily deformed, as a comparative example, but it has softness and elasticity. Because of this, the surface is slightly elastically deformed while maintaining a constant shape.

The openings 13 are formed continuously at substantially uniform intervals basically over almost the entire length of the stud 2 in the longitudinal direction on the indoor side 14 surface (opening surface) of the stud 2 having a C-shaped cross section. If necessary, a mounting member 27 such as a wooden brick is installed in the opening 13 of the stud 2, as shown in FIG. The attachment member 27 is used, for example, to attach the inner wall 9. A part of the mounting member 27 protrudes toward the indoor side 14 beyond the opening 13 (a protruding portion). The inner wall 9 is fixed to the front side of the protruding portion of the mounting member 27, so that the inner wall 9 is spaced apart in the short side direction Y of the building unit 8 so as not to be in direct contact with the stud 2. A heat insulating space is formed between the outer wall 7 and the inner wall 9.

In this embodiment, the mounting member 27 is provided at only one location approximately in the center of the stud 2 in the vertical direction Z with respect to the stud 2 located away from the pillar 6 in the long side direction X. Note that for the corner stud 2a that is installed substantially in contact with the pillar 6, a plurality of mounting members 27, for example, four mounting members 27 are provided at intervals in the vertical direction Z, as an exception.

The width dimension W1 is the width of the first portion 21a (inner pillar portion) of the heat insulating material main body 21 that is inserted into the inside of the stud 2 through the opening 13 of the stud 2. The width W1 of the first portion 21a is set to be approximately the same as or slightly smaller than the width W3 of the opening 13 of the stud 2 (W1≈W3, or W1≦W3). The width dimension W1 is preferably set smaller than the opening 13 so that the first portion 21a can easily pass through the opening 13 and so that it does not get caught in the opening 13. Note that the width of the second portion 21b protruding from the stud 2 of the heat insulating material body 21 may be larger than the width W1 of the first portion 21a.

The heat insulating material body 21 is the central part of the elongated pillar heat insulating material 3 made of an organic material, and has a substantially uniform cross section over the entire length in the longitudinal direction. The heat insulating material main body 21 has at least a first portion 21a that is inserted into the stud 2 from the opening 13, and a second portion 21b (portion outside the pillar) that projects toward the indoor side 14. The first portion 21a and the second portion 21b are continuously formed over the entire length of the heat insulating material main body 21. Although there is no clear boundary line between the first portion 21a and the second portion 21b, the position of the locking surface of the opening locking portion 23 serves as the boundary.

The heat insulating material main body 21 may be formed to a length that allows the opening 13 of the stud 2 to be closed with one piece, or may be formed in separate pieces to a length that allows the opening 13 of the stud 2 to be closed with a plurality of pieces. . In this embodiment, the heat insulating material main body 21 is divided into two parts so that the two parts cover the entire opening 13 of the stud 2. The two heat insulating material bodies 21 are installed above the mounting member 27 and below the mounting member 27, respectively. Note that the heat insulating material main body 21 may be divided into three or more pieces depending on the installation situation of the mounting member 27.

The first portion 21a is a portion of the heat insulating material main body 21 on the back side that is inserted into the inner space of the stud 2. This first portion 21a extends with a constant width W1 in the longitudinal direction, and in the depth direction, it is inserted more than the depth of the stud 2 (or the width of the flange portion 17). It becomes shorter in direction 22. The depth of the first portion 21a is, for example, approximately 1/2 to 1/3 of the depth of the stud 2. The first portion 21a is inserted into the opening 13 by appropriately forming an insertion assisting portion 21d (FIG. 4) such as a tapered C surface or a tapered surface on the distal end side in the insertion direction 22. You can make it easier.

The second portion 21b protruding toward the indoor side 14 is a portion on the front side of the heat insulating material body 21 that comes out to the outside of the stud 2 and is located on the indoor side 14 when the heat insulating material body 21 is attached to the stud 2. be. The second portion 21b is formed to have a protrusion 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 has a thickness (or protrusion) that is, for example, about 1/3 that of the first portion 21a.

The insertion direction 22 is a direction in which the heat insulating material body 21 is attached to the stud 2, or a direction in which the first portion 21a of the heat insulating material body 21 is inserted into the opening 13 of the stud 2. The insertion direction 22 is a 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 be the long side direction X.

The opening locking portion 23 is a horizontally projecting portion that is integrally formed with the second portion 21b of the heat insulating material body 21 that projects toward the indoor side 14 and serves as a locking flange. The opening locking portion 23 has a locking surface on the side of the stud 2, and the locking surface contacts and tightly contacts the opening surface (lip portion 18) of the indoor side 14 of the stud 2, so that the indoor side 14 and is locked in the insertion direction 22. The opening locking portion 23 is formed to have approximately the same width as the opening surface of the stud 2 as a whole, or a width slightly narrower than that. The opening locking portion 23 is continuously formed over almost the entire length of the heat insulating material body 21 in the longitudinal direction.

The back surface of the stud 2 is constituted by a web portion 16 installed facing the outdoor side 11, and serves as a surface to which the outer wall 7 is attached.

The backing portion 24 is a portion that extends integrally from the first portion 21a in the stud 2 of the heat insulating material main body 21 toward the inner surface of the stud 2 in the insertion direction 22. The backing portion 24 defines the amount of insertion of the heat insulating material body 21 into the stud 2 by having its tip surface abut against the inner surface of the stud 2 (inner surface of the web portion 16). The backing part 24 is formed in such a length that it just abuts against the back surface of the stud 2 when the opening locking part 23 is locked in the opening 13 of the stud 2. That is, the backing portion 24 is formed to have 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 number of locations on the heat insulating material body 21, but for example, by providing the backing portions 24 at two locations, the heat insulating material body 21 can be placed in a position parallel to the studs 2. It can be kept stable. In this embodiment, the backing portions 24 are provided in the same number as the caulking fixing portions 25 at substantially the same positions as the caulking fixing portions 25 with respect to the longitudinal direction of the heat insulating material main body 21 .

The backing portion 24 may be formed to have a width smaller than that of the heat insulating material main body 21. The backing portion 24 may have a symmetrical shape. In this embodiment, the backing portion 24 is formed in a multi-step shape so as to become gradually thinner toward the tip when viewed from the longitudinal direction. The width of the tip of the backing part 24 is reduced to about 1/3 or less of the width of the web part 16.

The side surface 21c is mainly a surface of the first portion 21a in the stud 2 of the heat insulating material body 21 that faces the flange portion 17 of the stud 2. At least a portion of the side surface 21c on the side of the opening locking portion 23 is in a state in which it lightly contacts the opening 13 (such as the tip of the lip portion 18) or faces the opening 13 with a slight gap therebetween. The caulking fixing portion 25 is provided on this side surface 21c. Note that the above-mentioned width dimension W1 is the distance between the side surfaces 21c on both sides of the above-described first portion 21a at a position where the caulking fixing portion 25 is not provided.

The width W2 of the part of the heat insulating material main body 21 is the lateral dimension of the side surface 21c at the position where the caulking fixing part 25 is provided. Since this position includes the first portion 21a and the caulking fixing parts 25 on both sides, the width dimension W2 is wider than the width W1 at the position without the caulking fixing parts 25 by the amount of the caulking fixing parts 25 on both sides. It is wider (W2>W1).

The width W3 of the opening 13 is the distance between the tips of the lip portions 18 of the studs 2. This width is basically constant over the entire length of the stud 2.

The caulking fixing portion 25 is a portion that caulks and fixes the heat insulating material main body 21 to the edge of the opening 13 of the stud 2 (such as the tip of the lip portion 18). The caulking fixing section 25 uses the restoring force due to slight elastic deformation of the insulating material body 21 made of an organic material to press and fix the insulating material body 21 to the opening 13 (caulking fixation). By bending or crushing the caulking fixing part 25 within the range in which it can be elastically deformed and inserting it into the opening 13, the part is pushed into the opening 13 by the restoring force that causes the part to return to its original state. The heat insulating material main body 21 is pressed and held. For this purpose, the width W2 of the caulking fixing part 25 is made larger than the width W3 of the opening 13 (W2>W3) to the extent that the required pressure force can be obtained within a range where elastic deformation is possible.

The dimension of the caulking fixing part 25 in the vertical direction Z is preferably set to, for example, about 10% or less of the entire length of the heat insulating material body 21. Thereby, both the ease of inserting the heat insulating material body 21 into the opening 13 of the stud 2 and the compression force can be optimized. If the dimension of the caulking fixing part 25 in the vertical direction Z becomes larger than about 10% of the entire length of the heat insulating material main body 21, the crimp force against the opening 13 will be high, but the ease of insertion will be impaired. Work efficiency decreases. Moreover, if the dimension of the caulking fixing part 25 in the vertical direction Z is made smaller than the above, the ease of insertion will be improved, but sufficient crimp force will not be obtained.

The caulking fixing part 25 includes an introduction taper part 25a (FIG. 5) for making it easier to insert into the opening 13, and a locking holding part such as a stopper surface or a return part to make it difficult to come off from the opening 13. It's okay. The introduction taper portion 25a is formed on the front side of the caulking fixing portion 25 in the insertion direction 22. The locking holding portion is formed on the rear side of the caulking fixing portion 25 in the insertion direction 22.

(2) A plurality of caulking fixing parts 25 may be provided in the heat insulating material main body 21 (FIGS. 4 and 5).
One of the plurality of caulking fixing parts 25 may be a wide fixing part 31 having a wider width W4 than the other caulking fixing parts 25, and may be provided at a position other than the central part of the heat insulating material main body 21.
The stud 2 may have a wide receiver 32 that accommodates the wide fixing part 31 at a position that matches the wide fixing part 31 of the opening 13 (FIGS. 7 and 8).

Here, although a single caulking fixing part 25 may be provided for the heat insulating material main body 21, it is preferable to provide a plurality of the caulking fixing parts 25. Providing a plurality of caulking fixing portions 25 on the heat insulating material body 21 means that the caulking fixing portions 25 are present at a plurality of locations in the longitudinal direction of the heat insulating material body 21 . The plurality of caulking fixing portions 25 can be provided at two or more locations. In this embodiment, there are two caulking fixing portions 25.

As shown in FIG. 5(b), the wide fixing portion 31 is a caulking fixing portion 25 that has a stronger crimping force (pressing force) than the other caulking fixing portions 25 (FIG. 5(a)). By making the width dimension W4 including the first portion 21a wider than other caulking fixing parts 25 and increasing the amount of deformation recovery when caulking and fixing to the opening 13, the wide fixing part 31 has a strong caulking force. Become. The wide fixing portion 31 has a width W4 wider than the other caulking fixing portions 25, so that it can be caulked and fixed over a wider width. The wide fixing portion 31 has a width W4 that is approximately 2 mm larger than the width W1 of the other caulking fixing portions 25, for example. However, the difference between the width dimension W1 of the other caulking fixing part 25 and the width dimension W4 of the wide fixing part 31 is not limited to 2 mm. When there are a plurality of other caulking fixing parts 25, the width dimensions W2 are made equal to each other so that uniform pressure bonding force can be obtained. Note that the caulking fixing section 25 in a broad sense includes the wide fixing section 31. The caulking fixing part 25 in a narrow sense is only the other caulking fixing parts 25 excluding the wide fixing part 31.

Although the wide fixed portion 31 may be provided at the longitudinal center of the heat insulating material body 21, it is preferably provided at a position other than the longitudinal center. The position other than the center of the heat insulating material main body 21 is a position that is displaced to a position different from the original position when the heat insulating material main body 21 is turned upside down. The center portion of the heat insulating material main body 21 is not displaced even if it is turned upside down, so it remains in the same position.

In addition, in order to indicate the correct mounting direction in the vertical direction Z, the heat insulating material main body 21 has a mark such as an arrow mark on the surface of the second portion 21b protruding toward the indoor side 14 so that it can be visually seen from the indoor side 14. A mark 33 (FIG. 3) indicating the direction may be formed.

The position of the opening 13 that matches the wide fixing part 31 is the position where the wide fixing part 31 is inserted when the heat insulating material main body 21 is installed in the normal orientation. This position becomes a position where the wide fixing part 31 is not inserted when the heat insulating material main body 21 is turned upside down because the wide fixing part 31 is displaced in the vertical direction Z.

The wide receiving portion 32 is a 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 in which the width W5 is locally widened compared to the opening 13 whose width W3 is basically constant. Since the wide receiving portion 32 has a wide width W5, the other caulking fixing portions 25 cannot be caulked very strongly or cannot be caulked at all. The wide receiving portion 32 is set to a width dimension W5 such that only the wide receiving portion 32 can be caulked and fixed with a required pressure force. The width dimension W5 of the wide receiving portion 32 is preferably made wider than the other caulking fixing portions 25 by the amount that the wide fixing portion 31 is wider than the other caulking fixing portions 25. For example, in the example described above, the wide receiving portion 32 has a width W5 that is approximately 2 mm larger overall than the width W3 of the other caulking fixing portions 25. However, the difference between the width W3 of the opening 13 and the width W5 of the wide receiver 32 is not limited to 2 mm.

Incidentally, the wide fixing portion 31 and the wide receiving portion 32 are provided assuming that there is a dimensional error in the opening 13 of the stud 2. Therefore, the wide fixing part 31 and the wide receiving part 32 can actually avoid the influence when the error becomes large on the wide side, taking into consideration the magnitude of the error in the width dimension W3 of the opening 13. The width dimensions W4 and W5 are set as follows. That is, based on the error value of the width dimension W3 of the opening 13, the width dimension W4 of the wide fixed portion 31 and the width dimension W5 of the wide receiving portion 32 are set. As a result, the width W4 of the wide fixing part 31, the width W5 of the wide receiver 32, the width W2 of the caulking fixing part 25, the width W3 of the opening 13, and the width W1 of the heat insulating material body 21 are set in this order. becomes larger (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. For example, as shown in FIG. 9, the wide receiving portion 32 can be cut out to an appropriate size up to the extent that 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 entire width of the lip portion 18 may be cut out to include a portion 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 formed as a right-angled stepped portion, or may be formed with a sharp point at the stepped portion. In order to eliminate corners, it may be cut out diagonally to create a sloped step.

(3) As shown in FIG. 3, the caulking fixing portions 25 may be provided at two locations: near the upper end (H1) and near the lower end (L1) of the heat insulating material main body 21.
As shown in FIG. 7, the wide receiving portion 32 is provided at a position that matches the wide fixed portion 31 in at least one of the vicinity of the upper end (H2) and the lower end (L2) of the stud 2. Also good.

Here, the caulking fixing part 25 may be provided at a position other than the two locations near the upper end (H1) and the lower end (L1) of the heat insulating material main body 21, but the caulking fixing part 25 It is preferable to provide the heat insulating material body 21 at two locations: near the upper end (H1) and near the lower end (L1).

The upper end (H1) of the heat insulator body 21 is the upper end of the heat insulator body 21. The vicinity of the upper end (H1) of the heat insulator main body 21 is the upper end of the heat insulator main body 21 and its surroundings. Note that, for the sake of simplification of explanation, the "upper end (H1)" may include "the upper end (H1) and its vicinity."

The lower end (L1) of the heat insulator main body 21 is the lower end of the heat insulator main body 21. The vicinity of the lower end (L1) of the heat insulator main body 21 is the lower end of the heat insulator main body 21 and its surroundings. Note that for the sake of simplification of explanation, the "lower end (L1)" may include "the lower end (L1) and its vicinity."

For example, when the length of the insulation material main body 21 is approximately equal to the length of the stud 2, the upper end (H1) and lower end (L1) of the insulation material main body 21 are the same as the upper end (H2) and the lower end of the stud 2. (L2), 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 are the same as the upper end (H2) and lower end of the stud 2. The position may be different from (L2).

That is, when the length of the insulation material body 21 is approximately half the length of the stud 2, the upper end (H1) of the lower insulation material body 21 is approximately half the length of the stud 2, as shown in FIG. This is the intermediate position, and the lower end (L1) substantially coincides with the lower end (L2) of the stud 2. Further, the upper end (H1) of the upper heat insulating material main body 21 substantially coincides with the upper end (H2) of the stud 2, and the lower end (L1) is located approximately in the middle of the stud 2.

One of the two caulking fixing parts 25 at the upper end (H1) and lower end (L1) of the heat insulating material main body 21 is a normal one, and the remaining one is a wide fixing part 31. The wide fixed portion 31 may be provided at either the upper end (H1) or the lower end (L1) of the heat insulating material main body 21.

The wide receiving portion 32 may be provided at a position other than near the upper end (H2) and lower end (L2) of the stud 2; however, the wide receiving portion 32 may be provided near the upper end (H2) of the stud 2. It is preferable to provide at least one or both of and near the lower end (L2).

The upper end portion (H2) of the stud 2 is the upper portion of the stud 2 near the ceiling beam 5. The vicinity of the upper end portion (H2) of the stud 2 is the upper portion of the stud 2 near the ceiling beam 5 and its surroundings. Note that for the sake of simplification of explanation, the "upper end (H2)" may include "the vicinity of the upper end (H2)."

The lower end portion (L2) of the stud 2 is a lower portion of the stud 2 near the floor beam 4. The vicinity of the lower end (L2) of the stud 2 is the lower part of the stud 2 that is close to the floor beam 4 and its surroundings. Note that, for the sake of simplicity, the term "lower end (L2)" may include "the vicinity of the lower end (L2)."

More specifically, for example, when the length of the insulation material body 21 is approximately equal to the length of the stud 2, the wide fixed portion 31 is attached to the upper end (H1) or the lower end (L1) of the insulation material body 21. It may be provided. The wide receiving portion 32 may be provided at either the upper end (H2) or the lower end (L2) of the stud 2 at a position that matches the wide fixing portion 31. Then, the opening 13 of the stud 2 receives the caulking fixing portion 25 of the heat insulating material main body 21. The wide receiving portion 32 of the stud 2 receives the wide fixing portion 31 of the heat insulating material body 21.

Further, for example, when the length of the insulation material main body 21 is approximately half the length of the stud 2, the wide fixed portion 31 of the lower insulation material main body 21 is fixed at the upper end (H1) of the insulation material main body 21 or It is provided at the lower end (L1). The wide receiving portion 32 is provided at one of the substantially middle and lower end portions (L2) of the stud 2 at a position that matches the wide fixing portion 31.

Similarly, the wide fixing portion 31 of the upper insulation material main body 21 is provided at the upper end (H1) or the lower end (L1) of the insulation material main body 21, and the wide receiving portion 32 is provided at the upper end (H2) of the stud 2. and approximately in the middle, at either one of the positions that coincide with the wide fixing part 31.

Then, the opening 13 of the stud 2 receives the caulking fixing portion 25 of the heat insulating material main body 21. The wide receiving portion 32 of the stud 2 receives the wide fixed portion 31 of the upper heat insulating material body 21 and the wide fixed portion 31 of the lower heat insulating material body 21, respectively. The wide fixing parts 31 of the upper heat insulating material main body 21 and the lower heat insulating material main body 21 may be provided on the same side in the longitudinal direction, or may be provided on different sides. good.

In this embodiment, the wide fixing portion 31 is provided at the lower end (L1) of the lower heat insulating material body 21, and the wide receiving portion 32 is provided at the lower end (L2) of the stud 2. Furthermore, the wide fixing portion 31 is provided at the upper end (H1) of the upper heat insulating material main body 21, and the wide receiving portion 32 is provided at the upper end (H2) of the stud 2. The wide fixing portions 31 are provided on different sides in the longitudinal direction of the lower heat insulating material main body 21 and the upper heat insulating material main body 21. The wide receiving portions 32 are provided both near the upper end (H2) and the lower end (L2) of the stud 2.

Note that it is preferable that the normal caulking fixing part 25 and the wide fixing part 31 be provided at positions where they do not overlap at all or hardly overlap each other when the heat insulating material main body 21 is turned upside down.

In FIG. 4 , the normal caulking fixing portion 25 is provided at a position closer to one end of the heat insulating material body 21 . Further, the wide fixing portion 31 is provided at a position away from the other end of the heat insulating material main body 21 by about the length of the normal caulking fixing portion 25 . On the contrary, the wide fixing part 31 is provided at a position near the other end of the heat insulating material body 21, and the normal caulking fixing part 25 extends from one end of the heat insulating material body 21 to the wide fixing part 31. They may be provided at positions separated by about a length.

At this time, by providing the normal caulking fixing part 25 and wide fixing part 31 slightly apart from the end of the heat insulating material main body 21, the separated parts can be used as adjustment margins 21e for the length of the heat insulating material main body 21. I can do it. That is, the length of the heat insulating material main body 21 can be finely adjusted by cutting the adjustment margin 21e at the end (on-site adjustment), if necessary. The adjustment allowance 21e can be provided on one or both of the caulking fixing part 25 side and the wide fixing part 31 side, and when provided on both sides, the adjustment allowance 21e may be of equal size, but it is not necessary. good.

<Function> The function of this embodiment will be explained below.

For example, in the building unit 8, the outer wall 7 is attached to the stud 2 installed between the floor beam 4 and the ceiling beam 5 from the indoor side 14 with rivets. Further, a mounting member 27 such as a wooden brick is attached to the stud 2 from the indoor side 14. Then, for example, as in the case of the comparative example shown in FIG. 11, a heat insulating material 41 is attached to the inside of the outer wall 7 so as to cover the outer wall 7 from the indoor side 14. This heat insulating material 41 may be, for example, an inorganic material such as glass wool. A heat insulating material 26 is also attached to the stud 2 from the indoor side 14.

The heat insulating material 26 of the comparative example uses an inorganic material such as glass wool, similar to the heat insulating material 41. In this case, the heat insulating material 26 is attached by being pushed into the stud 2 while being deformed so as to pass through the opening 13 .

However, when a heat insulating material 26, such as glass wool, which is easily deformed and has an undefined shape, is installed inside the stud 2, a gap is likely to be formed between the heat insulating material 26 and the opening 13 due to the deformation of the heat insulating material 26. This causes a problem in that air flows into and out of the studs 2 through the gaps, resulting in a decrease in thermal performance. Therefore, glass wool larger than the inner volume of the stud 2 is packed to make it difficult to form a gap, but if the size is too large, it takes time and effort to insert the glass wool into the stud 2, and productivity decreases. Also, making it larger increases the cost of glass wool.

Therefore, in order to prevent the deterioration of the insulation performance due to the gaps caused by the deformation described above and the deterioration of productivity due to the work of inserting large glass wool, we used a heat insulating material 42 made of organic material as shown in FIGS. 12 and 13. is being considered for use. The heat insulating material 42 made of an organic material has shape retention properties and maintains a stable constant shape, so it is difficult to form gaps due to deformation and is easier to attach to the studs 2 than glass wool.

When the heat insulating material 42 is formed of an organic material, a fixing means for holding the heat insulating material 42 to the studs 2 is required. For example, if the insulation material 42 is attached to the studs 2 with adhesive tape, installation is relatively easy, but with adhesive tape, the insulation material 42 can be attached for a long period of time, which extends to the service life of the building 1. It is difficult to keep it in the same position.

On the other hand, since the mounting member 27 is installed on the stud 2, it is conceivable to use the mounting member 27 to hold the heat insulating material 42. For example, it is conceivable to provide a hole 43 in a portion of the heat insulating material 42 that interferes with the mounting member 27 so that the hole 43 is fitted into and held in a portion of the mounting member 27 that protrudes toward the indoor side 14 from the opening 13 . By tightly fitting the hole portion 43 into the mounting member 27, the heat insulating material 42 can be held on the stud 2 for a long period of time by the mounting member 27.

However, the work of aligning and fitting the hole portion 43 to the mounting member 27 takes time and effort, resulting in poor productivity. Furthermore, problems arise between the mounting member 27 and the hole portion 43 in terms of dimensional accuracy, positional accuracy, and mounting accuracy. Further, since the cross-sectional shape of the heat insulating material 42 having holes 43 is not uniform over its entire length, there are problems such as a complicated structure, poor storage stability, and weakening of the strength around the holes 43.

Furthermore, since the mounting members 27 for the studs 2 require parts costs and installation costs, and also suffer from deficiencies in thermal performance, there is a desire to reduce the number of mounting members 27 used as much as possible. Currently, studs 2 other than the corner studs 2a can be structurally reduced to one location. In this case, the heat insulating material 42 cannot be held by the above-described fit between the hole 43 and the mounting member 27.

Therefore, in this embodiment, a pillar heat insulating material 3 having a caulking fixing portion 25 integrally formed in a heat insulating material main body 21 is provided. The pillar heat insulating material 3 is fixed to the opening 13 of the stud 2 by caulking with a caulking fixing part 25.

For example, for a stud 2 in which the mounting member 27 is provided at only one location, the pillar insulation material 3 is provided separately on the upper and lower sides, and the upper and lower pillar insulation materials 3 are placed on the upper side of the mounting member 27 in the stud 2. and the lower side separately. For example, the post heat insulating material 3 may be installed obliquely and inserted into the opening surface of the stud 2 from the upper end side or the lower end side first.

Then, in the post insulation material 3, the first portion 21a of the insulation material body 21 is inserted into the inside of the stud 2 from the indoor side 14 through the opening 13 until the backing portion 24 hits the back surface of the stud 2. By locking the opening locking portion 23 to the opening surface of the stud 2, it is mounted on the stud 2 without any gaps. At this time, the plural caulking fixing parts 25 provided on the heat insulating material body 21 caulk and fix the insulating material body 21 to the edge of the opening 13 of the stud 2 at a plurality of positions.

Thereby, the post heat insulating material 3 can be self-retained on the stud 2 by the caulking fixing part 25 without relying on the mounting member 27. Further, the pillar heat insulating material 3 does not require any other fixing means such as adhesive tape for fixing. The pillar heat insulating material 3 has a simple shape with a substantially uniform cross section.

Since the heat insulating material main body 21 does not rely on the mounting member 27, problems with the dimensional accuracy and positional accuracy of the caulking fixing portion 25 do not occur. Furthermore, even if the heat insulating material main body 21 has the caulking fixing portion 25, it has a substantially uniform cross section over its entire length, so there are no particular concerns regarding strength. That is, it does not have the drawbacks of the heat insulating material 42 in FIGS. 12 and 13.

At this time, since the studs 2 are not required to have high dimensional accuracy like the columns 6, ceiling beams 5, and floor beams 4 that constitute the unit frame, the studs 2 have a certain degree of error in the dimensions of the opening 13. There is. Therefore, the opening 13 of the stud 2 may be wider or narrower than the designed value. If the opening 13 is narrow, it can be used without any particular problem, but if the opening 13 is wide, the caulking fixing part 25 will be weakly caught, so there is a possibility that the heat insulating material main body 21 cannot be held properly.

Therefore, in the pillar heat insulating material 3, one of the caulking fixing parts 25 is made into a wide fixing part 31. As a result, even if the opening 13 of the stud 2 is wider than the design value due to a dimensional error, by using the wide fixing part 31, the pillar insulation material 3 can be attached to the stud 2, and the wide fixing part 31 can securely attach it. It becomes possible to hold it.

That is, when the opening 13 of the stud 2 is as designed or narrower than the designed value, the post insulating material 3 is used in the normal orientation. The wide fixing part 31 is installed at the position of the wide receiving part 32 and is fixed by caulking with the wide receiving part 32. A normal caulking fixing part 25 is also caulked and fixed to the opening 13.

If the opening 13 of the stud 2 is wider than the design, the insulation material 3 for the pillar is turned upside down, and the position of the wide fixing part 31 is changed. The wide fixing part 31 is installed at a position of the opening 13 other than the wide receiving part 32, and thereby performs caulking fixation with the opening 13. The wide fixed portion 31 is adapted to the opening 13 which is wider than the designed value. Therefore, even if the opening 13 of the stud 2 is wider than the designed value, the pillar heat insulating material 3 can be held in the stud 2.

<Effects> According to this embodiment, the following effects can be obtained.

(Effect 1) The pillar heat insulating material 3 may be formed of an organic material. The pillar heat insulating material 3 made of an organic material has shape retention properties and is kept in a fixed shape, so it can be flexibly deformed like glass wool and create a gap between it and the opening 13. There is no possibility of air entering or exiting through the gaps and deteriorating the insulation performance. In other words, the pillar heat insulating material 3 made of an organic material can prevent the deterioration of the heat insulating performance due to gaps caused by deformation of the heat insulating material main body 21.

The pillar heat insulating material 3 made of an organic material may include a heat insulating material body 21, an opening locking part 23, and a backing part 24. As a result, by simply inserting the insulation material main body 21 into the opening 13 of the stud 2 from the indoor side 14, the backing part 24 is brought into contact with the inner surface of the stud 2, and the opening locking part 23 is inserted into the opening of the stud 2. It is locked on both sides of the stud 13 to close the opening 13, and is mounted on the stud 2 without any gaps. Since the heat insulator body 21 has the backing part 24, the volume of the heat insulator body 21 can be reduced, and it can be installed inside the stud 2 with high precision.

At this time, the heat insulating material body 21 deforms the caulking fixing part 25 in which the width W2 of a part of the side surface 21c of the first part 21a is partially wider than the width W3 of the opening 13 of the stud 2. It may be fixed to the opening 13 by caulking. As a result, the heat insulating material main body 21 is self-retained by the stud 2 due to the restoring force of the caulking fixing portion 25 .

Therefore, the pillar heat insulating material 3 can eliminate the need for another fixing means such as an adhesive tape for fixing the heat insulating material main body 21 to the stud 2. In addition, the pillar insulation material 3 does not require the use of a mounting member 27 such as a wooden brick in order to attach the insulation material main body 21 to the stud 2. Accordingly, the building unit 8 can reduce the number of mounting members 27, thereby reducing the cost of the mounting members 27 and the labor of construction.

The post heat insulating material 3 can self-hold the heat insulating material body 21 at the same position on the stud 2 for a long period of time by the caulking fixing part 25. Further, the caulking fixing portion 25 can prevent the heat insulating material body 21 from falling off from the stud 2 due to external vibration. Furthermore, the caulking fixing portion 25 can prevent noise caused by rattling of the heat insulating material body 21. The heat insulating material main body 21 continues to stably exhibit its heat insulating effect without changing over a long period of time, for example, over 60 years, which is the service life of the building 1.

(Effect 2) In the pillar heat insulating material 3, a plurality of caulking fixing parts 25 may be provided in the heat insulating material main body 21. Thereby, the heat insulating material main body 21 can be stably caulked and fixed to the opening 13 of the stud 2 at a plurality of locations by the plurality of caulking fixing parts 25.

The pillar heat insulating material 3 may also have one of the plurality of caulking fixing parts 25 as a wide fixing part 31 that is wider than the other caulking fixing parts 25 and providing it at a position other than the central part of the heat insulating material body 21. good. Thereby, it is possible to provide the wide fixing portion 31 having a stronger pressure bonding force than the other caulking fixing portions 25. Then, by flipping the heat insulating material body 21 upside down and changing the position of the wide fixing part 31 in the vertical direction Z, the wide fixing part 31 can be used at a different position in the opening 13.

The stud 2 has a wide receiver 32 that accommodates the wide fixing part 31 at a position that matches the wide fixing part 31 of the opening 13 . Thereby, in the normal state, the wide fixed portion 31 can be received by the wide receiving portion 32. Further, by turning the heat insulating material body 21 upside down, the wide fixing portion 31 can be used at a different position from the wide receiving portion 32.

Therefore, if there is a dimensional error in the opening 13 of the stud 2 and the opening 13 is wide, by flipping the insulation material body 21 upside down and attaching it to the opening 13, the insulation material body 21 can be fixed wide. The portion 31 can be caulked and fixed to the opening 13. Therefore, the pillar heat insulating material 3 can accommodate the dimensional error of the opening 13 as is.

(Effect 3) In the pillar heat insulating material 3, the caulking fixing portions 25 may be provided at two locations: near the upper end (H1) and near the lower end (L1) of the heat insulating material main body 21. Thereby, the number of caulking fixing parts 25 can be reduced to the minimum number. Moreover, the caulking fixing part 25 can be installed at a position that is easy to understand and handle.

In the pillar insulation material 3, the wide receiving portion 32 may be provided at a position matching the wide fixed portion 31 in at least one of the vicinity of the upper end (H2) and the vicinity of the lower end (L2) of the stud 2. . Thereby, the wide receiving portion 32 can be provided at a position where the stud 2 is easy to process and handle.

Further, the wide fixing portion 31 can also be provided at a position that is easy to form and handle, either near the upper end (H1) or near the lower end (L1) of the heat insulating material main body 21. Since the wide fixing portion 31 is located at the end of the heat insulating material body 21, it becomes easier to attach the heat insulating material body 21 to the opening 13 of the stud 2.

2 Stud 3 Insulating material for pillar 13 Opening 14 Indoor side 16 Web part (back side)
21 Insulating material main body 21a First part 21b Second part 21c Side surface 22 Insertion direction 23 Opening locking part 24 Backing part 25 Caulking fixing part 31 Wide fixing part 32 Wide receiving part H1 Upper end part (insulating material for pillar)
L1 Lower end (column insulation material)
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 column insulation material that insulates a metal stud with a C-shaped cross section,
a heat insulating material body made of an organic material, having a first portion with a width dimension that can be inserted and placed inside the stud from an opening of the stud opening toward the indoor side, and extending in the vertical direction along the stud;
an opening lock that is formed on a second portion of the heat insulating material main body that projects from the stud to the indoor side so as to protrude to both sides of the opening of the stud, and that can be locked to the stud in the insertion direction. A stop and
a backing part formed in the first portion in the stud of the heat insulating material main body and abutting against the inner surface of the stud;
The insulating material for pillars is characterized in that the insulating material main body has a caulking fixing portion on a side surface in which the width of a portion of the first portion is partially wider than the width of the opening of the stud. . The pillar insulation material according to claim 1,
A plurality of the caulking fixing parts are provided in the heat insulating material main body,
One of the plurality of caulking fixing parts is a wide fixing part having a wider width than the other caulking fixing parts, and is provided at a position other than the central part of the heat insulating material main body,
A heat insulating material for a pillar, wherein the stud has a wide receiving part that accommodates the wide fixing part at a position that matches the wide fixing part of the opening. The pillar insulation material according to claim 2,
The caulking fixing portion is provided at two locations near the upper end and near the lower end of the heat insulating material main body,
The pillar heat insulating material is characterized in that the wide receiving part is provided at a position that matches the wide fixing part in at least one of the vicinity of the upper end and the lower end of the stud.