JP2012031565A - Heat insulation material for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation material for a floor, suitable for the floor and capable of improving workability and suppressing the generation of waste by omitting width reducing work on the spot.SOLUTION: Since side parts 22 which are flexible in the width direction, that is, easy to shrink in the width direction are provided on both sides in the width direction of a center part 21 which is strong against compressive force in the width direction, that is, hard to shrink in the width direction, when the compressive force in the width direction is made to act on a heat insulation material 10A for the floor, the side parts 22 are compressed to reduce the dimension in the width direction and the heat insulation material 10A for the floor is attached without reducing the width. Also, since a strong support material 23 is stuck to a bottom surface 211 of the wide center part 21, strength against external force for generating tension stress on the bottom surface 211 of the center part 21 can be increased.

Description

  The present invention relates to a heat insulating material for floors used between floor sets of buildings such as houses.

  Conventionally, in buildings such as wooden and steel-framed houses, heat insulating materials have been installed between the floor decks and the joists on the floors to save energy and create a comfortable living environment at room temperature. Has been done. At this time, there has been proposed a heat insulating material that can attach a heat insulating material for flooring between a large drawing or a joist on the large drawing without using a fastener such as a receiving pin (for example, Patent Documents 1 and 2). reference).

  As shown in FIG. 6, in the heat insulating material 100 described in Patent Document 1, a cut laminate 101 obtained by cutting a fiber laminate in which inorganic fibers are laminated in a direction perpendicular to the fiber direction, and the cut laminate 101 is 90. And rotating laminate 102 in which the fiber directions are orthogonal to each other. Then, the heat insulating material 100 is formed by integrating the cut laminate and the rotary laminate in the width direction orthogonal to the cutting direction.

  Thereby, when the width | variety of the site | part which mounts the heat insulating material 100 is narrow, the compression of the width direction of the heat insulating material 100 is enabled, and the process cut according to the space | interval between pillars on the spot can be omitted.

Moreover, as shown in FIG. 7, in the heat insulating material 110 for floor | beds of patent document 2, it shape | molds in plate shape and has stuck the nonwoven fabric 112 on the single side | surface (bottom surface) of the heat insulating board 111 which has a softness | flexibility. At this time, the nonwoven fabric 112 is pasted by the adhesive layer 115 at least 5 mm away from at least one edge of the heat insulating plate 111. In addition, the nonwoven fabric 112 is provided with extending portions 113 and 113 extending on both sides in the width direction.
Therefore, when the floor heat insulating material 110 is attached between the large pulls or joists of the floor set, the extending portions 113 of the nonwoven fabric 112 cover both side surfaces 114, 114 of the floor heat insulating material 110, and further, Reach up to the top.

  Thereby, since the nonwoven fabric 112 is stuck 5 mm or more away from at least one edge of the heat insulation board 111, when the width | variety of the heat insulation board 111 is too larger than the dimension of an attachment site | part, the nonwoven fabric 112 is stuck. The heat insulating plate 111 can be easily cut at a portion that is not provided.

WO 2004-008017 (FIG. 15) Japanese Patent Laid-Open No. 2008-196270 (FIG. 1)

  However, since the heat insulating material 100 described in Patent Document 1 described above is strong against the compressive force in the longitudinal direction of the heat insulating material 100, it is suitable for use like a wall, but is suitable for a floor heat insulating material. Absent. That is, when used horizontally for flooring, a downward external force such as its own weight acts as a load, starting from both ends in the width direction of the heat insulating material 100, and is liable to be bent. There is a problem that it is not suitable for a heat insulating material.

  In addition, the floor heat insulating material 110 described in Patent Document 2 described above requires a narrowing operation at the site, so there is room for improvement in workability, and there is a problem of generation of waste materials.

  The present invention has been made to solve the conventional problems, and is suitable for floor use, and is a floor heat insulating material that can improve the workability and reduce the generation of waste materials by omitting the width-filling work at the site. The purpose is to provide.

  The floor heat insulating material of the present invention is a floor heat insulating material using a plate-shaped or mat-shaped heat insulating material, and is provided on a wide central portion that is strong against compressive force in the width direction, and on both sides in the width direction of the central portion. And a side portion that is flexible and narrow in the width direction, and has a configuration in which a support material having flexibility, tensile strength, and moisture permeability is attached to at least the bottom surface of the central portion. .

With this configuration, side portions that are flexible in the width direction, that is, easily contractible in the width direction, are provided on both sides in the width direction of the central portion that is strong in the compressive force in the width direction, that is, not easily contracted in the width direction. When a force is applied, the side portion is compressed, and the dimension in the width direction can be reduced. In this way, even when floor insulation is installed at the site, for example, even when the size of the pullout is small, it is possible to attach the floor insulation without filling the width, improving work efficiency and reducing costs Can do. The term “flexible” or “flexible” means not only soft, but also a property of elastically deforming to some extent and returning to the original state.
In addition, when the compressive force in the width direction is removed, the flexible side portion tries to return in the width direction, and the repelling force holds the floor insulation without gaps between the overdraw or joists, so the insulation is not filled. Not only is this easy, but also in the work of attaching the support material between the fork or joists after that, the heat insulation material is held, and therefore it is not necessary to separately support the heat insulation material. Moreover, since the heat insulating material is filled in the frame such as the large drawing without a gap, the heat insulation defect is reduced.
Furthermore, the generation of waste materials at the construction site can be reduced by not performing the width narrowing.
Further, since the support material has moisture permeability, it does not hinder moisture drainage when rain water or the like during construction or water is spilled after completion.

  Moreover, in the heat insulating material for floors of the present invention, the side portion has a configuration made of the same material as the central portion or another material having flexibility.

  With this configuration, when the plate-shaped or mat-shaped heat insulating material is cut to form the central portion and the side portion, for example, the cut side portion is rotated 90 degrees to thereby make the side portion flexible in the width direction. Can be formed.

  Moreover, the heat insulating material for floors of this invention has the structure by which the said side part contacts the said center part end surface, and the bottom face of the said side part is affixed on the said support material.

  With this configuration, the side part is provided in contact with the end face of the central part, and the bottom part of the side part is adhered to the support material, so that the central part and the side part are integrated by the support material, and one floor heat insulation Can be handled as a material. Further, since it is not necessary to bond the central portion and the side portion with an adhesive or the like, it is possible to manufacture the heat insulating material relatively easily.

  Moreover, the heat insulating material for floors of this invention has the structure by which the said side part was adhere | attached on the end surface of the said center part.

  With this configuration, since the side portion is bonded to the end face of the central portion, the central portion and the side portion are integrated and can be handled as a single heat insulating material for a floor.

  Moreover, the floor heat insulating material of this invention has the structure by which the said side part has the bottom face stuck on the said support material in the position away from the said center part.

With this configuration, the side part is attached to the support material at a position away from the center part, so the center part and the side part are integrated by the support material and handled as a single floor insulation. Can do. Further, when the central part and the side part are formed of the same quality fiber-based heat insulating material, it is not necessary to change the stacking direction, so that it can be attached to the support material on the production line.
In addition, when sticking the side part to the support material, the direction of the cross section of the side part is the same as that of the central part, sticking in a direction that is strong against compression in the width direction, and rotating at the time of installation to the width direction Be flexible.

  In addition, the bottom surface of the side portion has a configuration in which the bottom portion is attached to the support member at a distance of 5 mm or more from the side opposite to the central portion.

  With this configuration, since the bottom surface of the side portion is adhered to the support material, the support material that is not adhered to the bottom surface of the side portion is compressed even when the side portion is compressed when installing the heat insulating material for the floor. The shape is maintained along the surface, and a long-term holding force can be expected.

  Moreover, the floor heat insulating material of this invention has the structure by which the bottom face of the said side part is not stuck on the said support material.

  With this configuration, when the side portion is bonded to the end surface of the central portion, the bottom surface of the side portion is not attached to the support material, so that the support material is bent when the side portion is compressed in the width direction. Insulation for floors can be installed without interruption.

Moreover, the floor heat insulating material of this invention has a structure whose density is 16-64 kg / m < ³ >, when the said center part is glass wool.

With this configuration, when glass wool is used at the center, the density is 16 to 64 kg / m ³ . More preferably, it is 24 to 32 kg / m ³ . This is because if the density is too high, the heat insulation effect on the weight is reduced, and if the density is too low, the rigidity is insufficient and bending occurs.

Further, in the floor heat insulating material of the present invention, the side portion 22 preferably has a repulsive force of 0.01 to 2.0 kN / m ² when the side portion is pressed by 90% in the width direction alone, and further, When the side portion is glass wool, the density is 8 to 48 kg / m ³ .

With this configuration, compression in the width direction of the heat insulating material facilitates filling into the frame such as large drawing, and since the heat insulating material is filled and held in the frame such as large drawing without a gap, the heat insulation defect is reduced. . Moreover, when using glass wool for a side part, a density shall be 8-48 kg / m < ³ > and a density is made low compared with a center part. More preferably, it is 16 to 24 kg / m ³ . This is because if the density is too high, the flexibility is poor, and if the density is too low, the strength is insufficient and the floor heat insulating material flexure increases.

  Furthermore, the heat insulating material for floors of this invention has the structure whose width | variety of the said side part is 5 mm-150 mm.

  With this configuration, the width of the side portion is set to 5 mm to 150 mm. More preferably, it is 10 mm to 50 mm. Thereby, it is possible to prevent delamination that is likely to occur when the width of the side portion is large and insufficient repulsive force when the width of the side portion is too small.

  Since the present invention is provided with side portions that are flexible in the width direction, that is, easily contractible in the width direction, on both sides in the width direction of the central portion that is strong in compressive force in the width direction, that is, not easily contracted in the width direction. When a compressive force is applied, the side portion is compressed, and the dimension in the width direction can be reduced. As a result, even when floor insulation is installed on site, for example, even when the size of the pullout is small, the floor insulation can be installed without filling the width, improving work efficiency and suppressing the generation of waste materials. It is possible to provide a heat insulating material for floors having an effect that it can be used.

It is a perspective view of the installation work of the heat insulating material for floors concerning this invention. It is sectional drawing of the heat insulating material for floors of 1st Embodiment which concerns on this invention. It is an expanded sectional view which shows the adhesion range of a nonwoven fabric and a side part. It is sectional drawing of the heat insulating material for floors of 2nd Embodiment which concerns on this invention. It is sectional drawing of the heat insulating material for floors of 3rd Embodiment which concerns on this invention. It is a perspective view of the conventional heat insulating material. It is a perspective view of the conventional heat insulating material for floors.

(First embodiment)
Hereinafter, the heat insulating material for floors of 1st Embodiment concerning this invention is demonstrated using drawing.
As shown in FIG. 1, the floor heat insulating material 10 </ b> A according to the first embodiment is attached between a floor set 11 such as a house and a floor board (not shown) to mainly improve heat insulation. . For example, it can be used by attaching between the large drawers 12 constituting the floor set or between the joists.

As shown in FIG. 2, the floor insulating material 10 </ b> A is affixed to the wide central portion 21 in the widthwise central portion, the side portions 22 on both sides in the width direction of the central portion 21, and at least the bottom surface 211 of the central portion 21. It has a worn support 23.
The central part 21 and the side part 22 are formed of a plate-like or mat-like heat insulating material. In the floor heat insulating material 10 </ b> A according to the first embodiment, the side surface 222 of the side portion 22 is not bonded to the end surface 212 of the central portion 21, but is in contact therewith, and the bottom surface 211 of the central portion 21 and the bottom surface of the side portion 22. 221 is attached with the same support material 23 (the broken line in FIG. 2 indicates the bonding surface).

  The central portion 21 has a structure that is strong against compressive force in the width direction. For example, an inorganic fiber heat insulating material such as glass wool or rock wool can be used. In the case of using these fiber-based heat insulating materials, by making the fiber direction substantially the same as the width direction, it becomes strong against the compressive force in the width direction. Alternatively, a plastic fiber heat insulating material such as a polyester resin fiber heat insulating material can also be used.

For example, when an inorganic fiber heat insulating material is used for the central portion 21, the density of the inorganic fiber heat insulating material is preferably 16 to 64 kg / m ³ . More preferably, it is 24 to 48 kg / m ³ .
This is because if the density is too high, the heat-insulating effect on the weight is small, and if the density is too low, the rigidity is insufficient and bending occurs.

  Alternatively, a plate-like foamed plastic heat insulating material such as an extruded foamed polystyrene foam, a beaded polystyrene foam, a polyethylene foam, a phenol foam, or a hard urethane foam can be used for the central portion 21. When these foam-based heat insulating materials are used, both the width direction and the thickness direction are strong in compressive force, so the directionality does not matter.

On the other hand, the side part 22 has a flexible structure in the width direction. As already described above, the term “soft” means not only soft but also a property of elastically deforming to some extent and returning to the original state.
The side portion 22 preferably has a repulsive force of 0.01 to 2.0 kN / m ² when the side portion is pressed 90% in the width direction, and preferably 0.15 to 1.0 kN / m ^2. Is more preferable. If the value is less than 0.01 kN / m ² , a gap may be generated between the frame such as the large draw and the heat insulating material, which is not preferable because the heat insulation defect becomes large, and the value is 2.0 kN / m ^2. Exceeding this is not preferable because it is difficult to fill in a frame such as a large drawing by compressing in the width direction. The evaluation method for the repulsive force is obtained by evaluating the compressive strength per unit area when a specimen (300 mm × 300 mm) is compressed 90% at 10 mm / min using a strograph.

Therefore, the foam-type heat insulating material used for the central portion 21 is unsuitable, and the fiber-based heat insulating material such as the inorganic fiber heat insulating material or the plastic fiber heat insulating material described above is used. At this time, in the case of an inorganic fiber heat insulating material, the fiber direction is made substantially the same as the thickness direction so as to be flexible in the width direction.
In the case where a fiber-based heat insulating material is used for the central portion 21, both ends in the width direction of the fiber-based heat insulating material are cut with a width equal to the thickness of the side portion 22 (that is, the thickness H1 of the central portion 21). Is rotated 90 degrees to form the side portion 22 having a width B (= H1). This is suitable for online processing.
Thereby, in the side part 22, since the fiber direction strong against a compressive force turns into a thickness direction, and the direction orthogonal to the fiber direction which has a softness turns into a width direction, it has a softness | flexibility in the width direction.

  Alternatively, when a foam-type heat insulating material is used for the central portion 21, a material separately formed from a material different from the central portion 21 is used as the side portion 22. In addition, even when using a fiber-type heat insulating material for the center part 21, the side part 22 can be separately formed with a fiber-based heat insulating material and used. In any case, it is desirable that the thickness of the side portion 22 is equal to the thickness of the central portion.

In addition, when glass wool or rock wool is used for the side portion 22, the density is desirably 8 to 48 kg / m ³ . More preferably, it is 16 to 24 kg / m ³ .
This is because if the density is too high, the flexibility is poor, and if the density is too low, the strength is insufficient and the deflection becomes large.

In addition, as for the width B of the side part 22, it is desirable to set it as 5 mm-150 mm. More preferably, it is set to 10 mm to 50 mm.
Thereby, it is possible to prevent delamination that tends to occur when the width is large and insufficient repulsion when the width is too small.

The support member 23 may be attached to the outer end surface of the side portion 22 and may be attached to the entire bottom surface 221 of the side portion 22 or partially, but as shown in FIG. The bottom surface 221 of the part 22 is not attached to the support member 23 in a range R of 5 mm or more from the end part opposite to the center part 21, that is, the outer end part 223, and the center part 21 side is attached. desirable.
Thereby, even if the side part 22 is compressed when installing the floor insulating material 10A, the shape of the support material 23 not adhered to the bottom surface 221 of the side part 22 is maintained along the side part 22, and the long-term Holding power can be expected.

  Moreover, the support material 23 has moisture permeability, and preferably has flexibility and tensile strength. For example, a polyester resin nonwoven fabric, a glass fiber nonwoven fabric, a nonwoven fabric of glass fiber and polyester fiber, and the like are suitable.

  As described above, according to the floor heat insulating material 10A of the first embodiment according to the present invention described above, the width direction is flexible on the both sides of the central portion 21 that is strong in compressive force in the width direction, that is, not easily contracted in the width direction. Since the side part 22 which is easy to shrink in the direction is provided, when the compressive force in the width direction is applied to the heat insulating material 10A for the floor, the side part 22 is compressed and the dimension in the width direction can be reduced. As a result, even when the floor insulation 10A is installed on site, for example, when the dimensions between the large pulls 12 are small, the floor insulation 10A can be attached without performing width filling, improving work efficiency and reducing costs. Can be achieved. Moreover, in this form, since it is not necessary to adhere | attach a center part and a side part like the manufacture example 2 mentioned later, it becomes possible to manufacture a heat insulating material comparatively simply.

Further, when the compressive force in the width direction is removed, the flexible side portion 22 tries to return in the width direction, and the floor insulating material 10A is filled with no gap between the draws 12 by the elastic force and repulsive force. Since it is hold | maintained, in the operation | work which attaches a support material, since it is not necessary to support a heat insulating material separately, workability | operativity improves. Moreover, since the heat insulating material is filled in the frame such as the large drawing without a gap, the heat insulation defect is reduced.
Furthermore, by not performing the narrowing, the work efficiency can be improved and the generation of waste materials at the construction site can be reduced.

  In addition, the support material 23 which has intensity | strength is stuck on the bottom face 211 of the wide center part 21. FIG. Since the support material 23 has moisture permeability, when the rainwater or the like during construction or when water is spilled after completion, the floor structure and the like are kept dry and prevent deterioration due to corrosion. be able to.

  Further, when forming the central portion 21 and the side portion 22 by cutting the plate-like or mat-like fiber-based heat insulating material, the cut side portion 22 is rotated 90 degrees so that the flexible side in the width direction can be obtained. The portion 22 can be formed.

  Furthermore, since the side portion 22 is provided in contact with the end surface 212 of the central portion 21 and the bottom surface 221 of the side portion 22 is adhered to the support material 23, the central portion 21 and the side portion 22 are integrated by the support material 23. And handling property improves as one heat insulating material 10A for floors.

(Second Embodiment)
Next, the floor heat insulating material 10B according to the second embodiment of the present invention will be described.
In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common in the heat insulating material 10A for floors concerning 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 4, in the floor heat insulating material 10B of the second embodiment, the side surface 222 of the side portion 22 is bonded to the end surface 212 of the central portion 21 (the broken line in FIG. 4 indicates the bonding surface). The bottom surface 221 of the side portion 22 is not attached to the support material 23.

  As mentioned above, according to the heat insulating material 10B for floors of 2nd Embodiment which concerns on this invention demonstrated, the effect similar to 10A of heat insulating materials for floors concerning 1st Embodiment mentioned above can be acquired. Moreover, since the side surface 222 of the side part 22 is adhere | attached on the end surface 212 of the center part 21, the center part 21 and the side part 22 can be integrated, and can be handled as one heat insulating material 10B for floors.

  Further, since the bottom surface 221 of the side portion 22 is not adhered to the support member 23, the floor heat insulating material 10B can be installed without bending the support member 23 when the side portion 22 is compressed in the width direction.

(Third embodiment)
Next, a floor heat insulating material 10C according to a third embodiment of the present invention will be described.
In addition, suppose that the same code | symbol is attached | subjected to the site | part which is common with the floor heat insulating material 10A concerning 1st Embodiment mentioned above, or the floor heat insulating material 10B concerning 2nd Embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5, in the floor heat insulating material 10 </ b> C of the third embodiment, the bottom surface 221 of the side portion 22 is attached to the support material 23 at a position away from the central portion 21 (interval D).

As described above, according to the floor heat insulating material 10C of the third embodiment according to the present invention described above, it is possible to obtain the same effects as those of the floor heat insulating material 10A according to the first embodiment described above.
Moreover, since the bottom face 221 is affixed to the support material 23 in the position away from the center part 21, the center part 21 and the side part 22 are integrated by the nonwoven fabric 23, and the side part 22 is heat insulation for one floor. It can be handled as the material 10C.

Moreover, since the side part 22 is separated from the center part 21, when installing the heat insulating material 10C for floors, the nonwoven fabric 23 and the side part 22 can be installed while being rotated 90 degrees toward the center part 21 side.
Further, when the central part and the side part are formed of the same quality fiber-based heat insulating material, it is not necessary to change the stacking direction, so that it can be attached to the support material on the production line.
In addition, when sticking the side part 22 to the nonwoven fabric 23, it rotates at the time of installation by sticking the direction of the cross section of the side part 22 in the direction which becomes strong to compression of the width direction similarly to the center part 21. It becomes flexible in the width direction.
Further, by setting the distance D equal to the height H2 (= H1) of the side portion 22 and setting the width B of the side portion 22 equal to the height H1 of the central portion 21, the side portion 22 is rotated by 90 degrees. When this occurs, the side portion 22 and the central portion 21 come into contact with each other.

  As an example of construction of the present invention, the floor heat insulating material of the present invention is compressed in the width direction and filled into a frame such as a large drawing, and then the portion extending from the support material on the lower surface is fastened to the upper surface of the frame. The installation method is preferably employed, and the floor insulation material of the present invention has elasticity and repulsion. A construction method in which the support material is fixed to the lower surface or the side surface of the frame body and attached thereto is also preferably employed.

  In addition, the heat insulating material for floors of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

10A, 10B, 10C Floor insulation 21 Central portion 211 Bottom surface 212 End surface 22 Side portion 221 Bottom surface 223 Outer end portion (opposite end portion)
23 Nonwoven fabric (support material)
B Side width

Claims (11)

A floor insulation material using a plate-like or mat-like insulation material,
A wide central part that is strong against compressive force in the width direction,
Provided on both sides in the width direction of the central portion, and having side portions that are flexible and narrow in the width direction,
A floor heat insulating material, wherein a support material having moisture permeability is attached to at least a bottom surface of the central portion.   The said side part is a heat insulating material for floors of Claim 1 which consists of another material which has the same material as the said center part, or a softness | flexibility.   The floor insulating material according to claim 1 or 2, wherein the side portion is in contact with the end surface of the central portion, and a bottom surface of the side portion is adhered to the support material.   The floor insulating material according to claim 1 or 2, wherein the side portion is bonded to an end surface of the central portion.   The floor insulating material according to claim 1 or 2, wherein a bottom surface of the side portion is attached to the support material at a position away from the central portion.   The heat insulating material for floors according to claim 3, wherein the bottom surface of the side portion is attached to the support material at a distance of 5 mm or more from the side opposite to the central portion.   The heat insulating material for floors according to claim 4, wherein a bottom surface of the side portion is not attached to the support material. The floor insulating material according to any one of claims 1 to 7, wherein the central portion is glass wool or rock wool, and the density is 16 to 64 kg / m ³ . The sides, floor insulation material according to any of claims 1-8 repulsive force when the 90% pressed in the width direction at the side alone is 0.01~2.0kN / m ^2. The floor insulating material according to any one of claims 1 to 9, wherein the side portion is glass wool or rock wool, and the density is 8 to 48 kg / m ³ .   The floor insulating material according to any one of claims 1 to 10, wherein a width of the side portion is 5 mm to 150 mm.

Images