Floor support unit

Abstract

To provide a floor support unit which facilitates mounting of a heat insulation member on a sleeper member.SOLUTION: A floor support unit 20 has a sleeper member 22 for supporting a floor panel 17, and columnar bundle members 23 which are provided between a foundation dirt floor 12 or the ground surface and the sleeper member 22, and support the sleeper member 22. The plurality of bundle members 23 have a joint member joined to the sleeper member 22, and are arranged at intervals in the extension direction of the sleeper member 22. The floor support unit 20 further has a first heat insulation member 24 which is fixed to the sleeper member 22 between the bundle members 23 in the extension direction, and second heat insulation members 25 which cover the joint members of the bundle members 23 at positions adjacent to the first heat insulation member 24 in the extension direction. A first engagement part 24d provided at a position facing the second heat insulation member 25 in the extension direction, in the first heat insulation member 24 is engaged with a second engagement part 27 provided at a position facing the first heat insulation member 24 in the extension direction, in the second heat insulation member 25.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a floor support unit for a building such as a house, and particularly to a floor support unit related to heat insulation of a large pulling member used in a floor structure of a building such as a house.

Background Art

[0002] Currently, in a floor structure of a building such as a house, a large pulling member is provided on the foundation soil through a bundle. For example, joists are arranged on a base on the foundation and the large pulling member, and a heat insulating material and a floor board are provided in this order on the joists. Also, sometimes the heat insulating material and the floor board are provided in this order on the base and the large pulling member without providing joists. The large pulling member faces the foundation soil and is in contact with the outside air for the purpose of ventilating the underfloor space directly above the foundation soil. Therefore, heat insulation of the large pulling member has also been studied.

[0003] In Patent Document 1, when applying a heat insulating material to an exposed portion of a steel or wooden large pulling member in the first-floor underfloor portion of a building such as a house with underfloor ventilation, a foamed plastic-based heat insulating material is used to form a U-shaped cross-section that opens upward and is formed in a gutter shape in the material length direction. The covering material is inserted from below the large pulling member and attached, and a belt-shaped U-shaped retaining metal fitting is inserted from above to hold the covering material in a mounted state. A heat insulation structure for the large pulling member is described.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described above, the thermal insulation structure for the main beam member in Patent Document 1 involves attaching a gutter-shaped covering material to the main beam member by inserting it from below, and also attaching the covering material by inserting a strip-shaped U-shaped fastener from above. Thus, the thermal insulation structure in Patent Document 1 requires considerable effort to attach the covering material to the main beam member.

[0006] Therefore, the present invention has been made in view of the above problems, and its objective is to provide a floor support unit that facilitates the attachment of heat insulating members to the main beam members. [Means for solving the problem]

[0007] The above problems are solved by the floor support unit of the present invention, which comprises a main beam member that supports a floor panel, and a columnar support member provided between the foundation slab or ground and the main beam member, wherein the support member has a connecting member that is joined to the main beam member, and a plurality of support members are arranged at intervals along the extension direction of the main beam member, and further comprises a first insulating member fixed to the main beam member between the support members in the extension direction, and a second insulating member that covers the connecting member of the support member at a position adjacent to the first insulating member in the extension direction, wherein a first engaging portion provided on the portion of the first insulating member facing the second insulating member in the extension direction and a second engaging portion provided on the portion of the second insulating member facing the first insulating member in the extension direction engage with each other. In the floor support unit of the present invention configured as described above, the heat insulating member can be easily attached to the main beam member.

[0008] Furthermore, in the floor support unit described above, it is preferable that the second heat insulating member is composed of a plurality of heat insulating pieces, each heat insulating piece having a second engaging portion, and that the second engaging portion of each heat insulating piece engages with the first engaging portion of the first heat insulating member. According to the above configuration, the insulation material can be attached to the main beam member even more easily. Furthermore, in the floor support unit described above, it is more preferable that the support member has a support column, and that the multiple heat insulating pieces are arranged so as to sandwich the support column. According to the above configuration, a heat insulating member can be provided along the entire extension direction of the main beam member.

[0009] Furthermore, in the floor support unit described above, it is even more preferable that the first heat insulating member is a rectangular parallelepiped-shaped member having a long side of a predetermined length. According to the above configuration, a heat insulating member can be provided along the entire extension direction of the main beam member. Furthermore, when the first engaging portion and the second engaging portion are engaged, it is even more preferable that the portion of the first heat insulating member facing the second heat insulating member and the portion of the second heat insulating member facing the first heat insulating member come into contact with each other. According to the above configuration, the first insulation member and the second insulation member can be arranged without any gaps in the extending direction of the main beam member. Furthermore, it is even more preferable that the first engaging portion has a recess or a protrusion, and the second engaging portion has a protrusion that engages with the recess of the first engaging portion or a recess that engages with the protrusion of the first engaging portion. According to the above configuration, the first insulating member and the second insulating member can be easily engaged. Furthermore, the joining member is composed of a rectangular plate, and it is even more preferable that the second insulating member covers the plate. According to the above configuration, a heat insulating member can be provided along the entire extension direction of the main beam member. [Effects of the Invention]

[0010] According to the floor support unit of the present invention, a heat insulating member can be easily attached to the main beam member. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic perspective view showing an example of an embodiment to which the floor support unit of the present invention is applied. [Figure 2] This is a schematic perspective view showing an example of a floor support unit according to an embodiment of the present invention. [Figure 3] This is a schematic diagram showing an example of a second heat insulating member of a floor support unit according to an embodiment of the present invention. [Figure 4](a) is a schematic plan view showing the engagement of the first heat insulating member and the second heat insulating member of the floor support unit according to an embodiment of the present invention, and (b) is a schematic side view showing the engagement of the first heat insulating member and the second heat insulating member of the floor support unit according to an embodiment of the present invention. [Figure 5] It is a schematic perspective view showing one step of the assembly of the floor support unit according to an embodiment of the present invention. [Figure 6] It is a schematic perspective view showing one step of the assembly of the floor support unit according to an embodiment of the present invention. [Figure 7] It is a schematic perspective view showing one step of the assembly of the floor support unit according to an embodiment of the present invention.

Mode for Carrying Out the Invention

[0012] <<Regarding the floor support unit according to one embodiment of the present invention>> Hereinafter, one embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the accompanying drawings. In the drawings, for the sake of easy understanding of the explanation, each member is illustrated in a somewhat simplified and schematic manner. Also, the sizes (dimensions) of each member shown in the drawings and the intervals between members are different from the actual ones. Also, in this specification, "parallel", "horizontal" and "orthogonal" include the range of errors generally allowed in the technical field of the present invention, and "parallel", "horizontal" and "orthogonal" include the state of being deviated within a range of less than several degrees (for example, 2 to 3°) with respect to the reference. Hereinafter, a floor support unit used for a floor structure of a building such as a house will be described.

[0013] FIG. 1 is a schematic perspective view showing an example of a form to which the floor support unit according to an embodiment of the present invention is applied. FIG. 2 is a schematic perspective view showing an example of the floor support unit according to an embodiment of the present invention. FIG. 2 shows the floor support unit 20 with the top and bottom reversed. The building includes a completed building, a building under construction, and a building under repair or renovation. As shown in Fig. 1, the foundation 10 has a flat foundation soil space 12 and a rising part 13 that rises vertically with respect to the foundation soil space 12. The foundation 10 is, for example, composed of reinforced concrete. The rising part 13 is provided such that a rectangular opening 14 is formed adjacent to the rising part 13 in a side view with respect to the foundation soil space 12. Among the rising parts 13, the rising parts 13 extending in the first direction D1 are arranged in plural at intervals in the second direction D2 orthogonal to the first direction D1, and a floor support unit 20 is arranged between two adjacent rising parts 13. Also, on the surfaces 13a located at the upper ends of the two rising parts 13 extending in the first direction D1, base plates 15 extending in the first direction D1 are provided respectively.

[0014] A heat insulation board 16 is arranged in the gap 14a between the floor support unit 20 and the base plate 15, and a floor panel 17 is provided on the heat insulation board 16 to form a floor. The heat insulation board 16 is, for example, composed of a board and a heat insulating body. The floor support unit 20 is for arranging the large pulling member 22 at an arbitrary position of the foundation soil space 12. Also, the floor support unit 20 can arrange the large pulling member 22 at an arbitrary position on the ground (not shown). The floor support unit 20 (see Fig. 2) has a large pulling member 22 that supports the floor panel 17 (see Fig. 1), a columnar bundle member 23, a first heat insulation member 24, and a second heat insulation member 25. The large pulling member 22 is a prismatic member that supports the floor panel 17 and extends in a predetermined direction. The extending direction of the large pulling member 22 is a direction parallel to the above-mentioned first direction D1. Hereinafter, the extending direction of the large pulling member 22 will be simply referred to as the "extending direction". The base plate 15 and the large pulling member 22 are, for example, composed of steel materials, but are not limited thereto, and may be composed of materials other than steel materials such as wood.

[0015] The support member 23 is provided between the foundation slab 12 (see Figure 1) and the main beam member 22, and is a member that supports the main beam member 22. Also, when the main beam member 22 is placed at an arbitrary position on the ground (not shown), the support member 23 is provided between the ground and the main beam member 22. Multiple support members 23 are arranged at intervals along the extension direction of the main beam member 22. The spacing of the support members 23 in the extension direction is not particularly limited, but for example, it is 910 mm (3 shaku). The bundle member 23 has a support column 23a, a plate 23b, and a base plate 23c, and is made of, for example, steel. Specifically, the spacing of the bundle member 23 in the extending direction is the spacing of the support columns 23a of the bundle member 23 in the extending direction. The base plate 23c of the support member 23 is placed on the foundation slab 12, and the plate 23b of the support member 23 is fixed to the back surface 22b of the main beam member 22 with screws or the like. The plate 23b of the support member 23 is a connecting member that is joined to the main beam member 22, and is also called a support.

[0016] The support column 23a, for example, has a variable axial length. The support column 23a has, for example, a threaded portion (not shown) extending in the axial direction and a cylindrical portion (not shown) into which the threaded portion is inserted, and the axial length of the support column 23a can be changed, for example, by rotating the threaded portion relative to the cylindrical portion. In this way, the length of the support member 23 in the direction perpendicular to the foundation slab 12 can be changed. Note that the structure for changing the axial length of the support column 23a is not limited to the structure described above. The plate 23b (joining member) is a support part that supports the main beam member 22 and is fixed to the main beam member 22 in a state where it is joined to the back surface 22b of the main beam member 22. The plate 23b is composed of, for example, a rectangular plate. For example, it is preferable that the length of the sides of the rectangular plate in the second direction D2 is the same as the length (width) of the main beam member 22 in the second direction D2. The base plate 23c is composed of, for example, a circular or square plate.

[0017] The first insulating member 24 insulates the main beam member 22 and is fixed to the back surface 22b of the main beam member 22 between the support members 23 in the extending direction of the main beam member 22. The back surface 22b of the main beam member 22 is the surface opposite to the surface 22a on which the floor panel 17 shown in Figure 1 is provided. The reason for fixing the insulation material to the back surface 22b of the main beam member 22 is that if the insulation material were to be installed on the front surface 22a of the main beam member 22, the axial length of the support column 23a would be shortened accordingly, resulting in a lower height for the underfloor space. The first thermal insulation member 24 is, for example, a rectangular parallelepiped-shaped member having a long side of a predetermined length. This makes it possible to provide thermal insulation members along the entire extension direction of the main beam member. Furthermore, by designing the long side of the first thermal insulation member 24 to be of a predetermined length, it can be used as a ruler to determine the spacing between the support members 23 positioned on either side of the first thermal insulation member 24, that is, the pitch of the support members 23 fixed to the main beam member 22, to be a constant length. The first heat insulating member 24 may also have a configuration comprising a heat insulating body 24a made of heat insulating material and a sheet body 24b attached to the heat insulating body 24a, as shown in Figure 5, which will be described later.

[0018] The second insulation member 25 insulates the portion where the support member 23 contacts the main beam member 22, specifically the plate 23b (jointing member) of the support member 23. The second insulation member 25 covers the plate 23b (jointing member) of the support member 23 at a position adjacent to the first insulation member 24 in the extending direction. The second insulation member 25 is attached to the support member 23 while engaged with the first insulation member 24. Specifically, the first engaging portion 24d (see Figure 4(a)) of the first insulation member 24, which is provided on the portion facing the second insulation member 25 in the extending direction, and the second engaging portion 27 (see Figure 3) of the second insulation member 25, which is provided on the portion facing the first insulation member 24 in the extending direction, engage with each other. As a result, as shown in Figure 2, the first insulation member 24 and the second insulation member 25 are positioned on the back surface 22b of the main beam member 22, and the main beam member 22 is insulated. Therefore, even if the main beam member 22 is facing the foundation slab 12 or the ground and is in contact with the outside air, the main beam member 22 is insulated, thus improving the insulation performance of the floor. In this case, a general performance insulation board 16 can be used, and there is no need to increase the thickness of the insulation material of the insulation board 16 to improve insulation performance. Furthermore, aside from arranging the first insulation member 24 and the second insulation member 25 on the back surface 22b of the main beam member 22, the configuration is the same as conventional floor framing, thus minimizing significant changes to the floor framing, and the floor can basically be formed by constructing a conventional floor framing.

[0019] Figure 3 is a schematic diagram showing an example of a second heat insulating member of a floor support unit according to an embodiment of the present invention. As shown in Figure 3, the second heat insulating member 25 is composed of a plurality of heat insulating pieces 26, more specifically, a pair of heat insulating pieces 26. The heat insulating pieces 26 are made of heat insulating material. Each heat insulating piece 26 has a second engaging portion 27 at both ends thereof, and the second engaging portion 27 of each heat insulating piece 26 engages with the groove portion 24e (see Figures 4(a) and (b)), which is the first engaging portion 24d of the first heat insulating member 24, described later. Specifically, the heat insulating piece 26 shown in Figure 3 has a rectangular recess 26a at its tip and a rib-shaped protrusion 27a on its side surface 26b. The protrusion 27a extends along the side surface 26b. The protrusion 27a is the second engaging portion 27, and together with the recess 26a, it forms a so-called "tongue and groove" joint. The cross-sectional shape of the protrusion 27a in the direction perpendicular to the extension direction is not limited to a rectangle, but may be a triangle, a semicircle, or a combination of a rectangle and an arc, with the tip of the protrusion 27a being an arc. The groove 24e of the first engaging portion 24d (see Figures 4(a) and (b)) is not particularly limited as long as it engages with the protrusion 27a, since the protrusion 27a engages with it. It is preferable that the cross-sectional shapes of the protrusion 27a and the groove 24e in the direction perpendicular to the extension direction are similar, but they may be congruent.

[0020] The procedure for attaching the second insulation member 25 will be explained below. As shown in Figure 3, the two insulation pieces 26 are arranged so that their recesses 26a face each other and the support column 23a of the beam member 23 fits into the two recesses 26a. That is, each insulation piece 26 is positioned so that it sandwiches the support column 23a between the two insulation pieces 26. In this process, the two insulation pieces 26 are brought closer together to engage the first engaging portion 24d and the second engaging portion 27. With the two insulation pieces 26 positioned to sandwich the support column 23a of the beam member 23, the plate 23b of the beam member 23 is covered by the second insulation member 25. In this way, by composing the second insulation member 25 with multiple insulation pieces 26, the insulation member can be attached to the main beam member 22 even more easily. Furthermore, by arranging the two insulation pieces 26 to sandwich the support column 23a of the beam member 23, the insulation member can be provided over the entire area in the extending direction of the main beam member 22.

[0021] Figure 4(a) is a schematic plan view showing the engagement between the first and second thermal insulation members of a floor support unit according to an embodiment of the present invention, and (b) is a schematic side view showing the engagement between the first and second thermal insulation members of a floor support unit according to an embodiment of the present invention. As shown in Figure 4(a), the first heat insulating member 24 is provided with a first engaging portion 24d at its end portion 24c. The first engaging portion 24d is composed of, for example, a groove portion 24e. The first heat insulating member 24 is positioned such that the end portion 24c, in which the groove portion 24e is formed, faces the side where the plate 23b of the bundle member 23 is located in the extending direction, and avoids the plate 23b of the bundle member 23. The insulating piece 26 is inserted between the ends 24c of the two first insulating members 24, which are facing each other with the plate 23b of the bundle member 23 in between, and the protrusion 27a of the second insulating member 25 engages with the groove 24e of the first insulating member 24. Specifically, the protrusion 27a fits into the groove 24e and engages. As a result, the insulating piece 26 engages with the first insulating member 24 as shown in Figure 4(b), and the first insulating member 24 and the second insulating member 25 are engaged. As shown in Figure 4(a), when the first engaging portion 24d and the second engaging portion 27 are engaged, the portion of the first heat insulating member 24 facing the second heat insulating member 25, i.e., the end face 24f of the first heat insulating member 24, and the portion of the second heat insulating member 25 facing the first heat insulating member 24, i.e., the side surface 26b of the second heat insulating member 25, are in contact. This allows the first heat insulating member 24 and the second heat insulating member 25 to be positioned without any gaps in the extending direction of the main beam member 22.

[0022] Next, we will explain how to assemble the floor support unit 20. Figures 5 to 7 are schematic perspective views showing a series of steps in order for the assembly of the floor support unit 20 according to an embodiment of the present invention. In Figures 5 to 7, components identical to those in the floor support unit 20 shown in Figure 2 are denoted by the same reference numerals, and their detailed descriptions are omitted. As shown in Figure 5, the first thermal insulation member 24 includes, for example, a thermal insulation body 24a made of thermal insulation material and a sheet body 24b attached to the thermal insulation body 24a. The thermal insulation body 24a and the sheet body 24b have approximately the same width as the width of the main beam member 22, and the sheet body 24b is longer in the extending direction than the thermal insulation body 24a. In addition, in the first thermal insulation member 24, the length of the thermal insulation body 24a is set to match the spacing of the support members 23, for example, to match the spacing of the plates 23b of the support members 23.

[0023] The first thermal insulation member 24 is not limited to a configuration having a thermal insulation body 24a and a sheet body 24b, and may consist only of a thermal insulation body 24a without a sheet body 24b. However, a configuration with a sheet body 24b is more preferable because it increases the adhesion between the main beam member 22 and the first thermal insulation member 24. The sheet body 24b is made of a surface material, for example, kraft paper, and is attached to the entire surface of the thermal insulation body 24a that faces the main beam member 22 by lamination molding or the like. The sheet body 24b shown in Figure 5 is positioned with the back surface 22b of the main beam member 22 facing the back surface 22b of the main beam member 22, and the first insulation member 24 is placed on the back surface 22b of the main beam member 22. At this time, the plate 23b of the support member 23 is placed on the portion of the sheet body 24b that protrudes from the insulation member 24a.

[0024] As shown in Figure 6, the plate 23b of the support member 23 is fixed to the main beam member 22 by joining it to the back surface 22b of the main beam member 22, for example, using screws 29, with the sheet body 24b in between. Note that the means for fixing the plate 23b of the support member 23 to the back surface 22b of the main beam member 22 is not limited to screws 29. Next, as shown in Figure 7, the two heat insulating pieces 26 are placed with their recesses 26a facing each other and sandwiching the support column 23a of the beam member 23. Then, the two heat insulating pieces 26 are brought closer together, and the protrusions 27a of the heat insulating pieces 26 engage with the grooves 24e of the first heat insulating piece 24, so that the second heat insulating piece 25 surrounds the support column 23a of the beam member 23 as shown in Figure 2. As a result, the second heat insulating piece 25 covers the plate 23b of the beam member 23. In addition, in the extending direction, the side surface 26b of the second heat insulating piece 25 abuts against the end surface 24f of the first heat insulating piece 24. As a result, the first heat insulating piece 24 and the second heat insulating piece 25 are continuous and integrated as a heat insulating structure for the beam member.

[0025] While embodiments of the floor support unit of the present invention have been described above, these embodiments are merely examples to facilitate understanding of the present invention and do not limit it. In other words, the present invention can be modified and improved without departing from its spirit. Furthermore, it goes without saying that the present invention includes equivalents thereof.

[0026] As described above, the first engaging portion 24d is a groove 24e and the second engaging portion 27 is a protrusion 27a, but the design is not limited to this. For example, the first engaging portion 24d may be a protrusion and the second engaging portion 27 may be a recess. However, if the first engaging portion 24d is a protrusion, it is necessary to ensure that it does not overlap the plate 23b of the bundle member 23, so it is more preferable that the first engaging portion 24d is a groove 24e. The first insulation member 24 and the second insulation member 25 are not particularly limited, but examples include extruded polystyrene foam, bead-processed polystyrene foam, rigid urethane foam, polyethylene foam, phenolic foam, polyisocyanurate foam, vacuum insulation material, and glass wool board. [Explanation of Symbols]

[0027] 10 Basics 12. Foundation floor 13. Rising section 13a, 22a surface 14 Aperture 14a Gap 15. Base 16 Insulation board 17 Floor Panels 20 Floor support units 22 Main beam members 22b Back side 23 Bundle member 23a Post 23b Plate 23c baseplate 24. First insulating member 24a Insulator 24b Sheet 24c end 24d 1st engagement part 24e Groove 24f end face 25. Second insulating member 26 Insulating pieces 26a Recess 26b Side 27 Second engagement part 27a Convex part 29 screws D1 First direction D2 Second Direction

Claims

1. The main beam members that support the floor panels, It has a columnar support member provided between the foundation floor or ground and the main beam member, which supports the main beam member, The aforementioned bundle member has a connecting member that is joined to the main beam member, and a plurality of them are arranged at intervals along the extending direction of the main beam member. A first heat insulating member is fixed to the main beam member between the bundle members in the extension direction, The bundle member further comprises a second insulating member that covers the joining member of the bundle member at a position adjacent to the first insulating member in the extension direction, A first engaging portion provided on the portion of the first insulating member facing the second insulating member in the extending direction engages with a second engaging portion provided on the portion of the second insulating member facing the first insulating member in the extending direction. The first thermal insulation member is a floor support unit, which is a rectangular parallelepiped-shaped member having a long side of a predetermined length.

2. The main beam members that support the floor panels, It has a columnar support member provided between the foundation floor or ground and the main beam member, which supports the main beam member, The aforementioned bundle member has a connecting member that is joined to the main beam member, and a plurality of them are arranged at intervals along the extending direction of the main beam member. A first heat insulating member is fixed to the main beam member between the bundle members in the extension direction, The bundle member further comprises a second insulating member that covers the joining member of the bundle member at a position adjacent to the first insulating member in the extension direction, A first engaging portion provided on the portion of the first insulating member facing the second insulating member in the extending direction engages with a second engaging portion provided on the portion of the second insulating member facing the first insulating member in the extending direction. The connecting member is composed of a rectangular plate, and the second heat insulating member is a floor support unit that covers the plate.

3. The aforementioned second heat insulating member is composed of multiple heat insulating pieces, The floor support unit according to claim 1 or 2, wherein each heat insulating piece has the second engaging portion, and the second engaging portion of each heat insulating piece engages with the first engaging portion of the first heat insulating member.

4. The floor support unit according to claim 3, wherein the bundle member has a support column, and the plurality of heat insulating pieces are arranged so as to sandwich the support column.

5. The floor support unit according to claim 1 or 2, wherein when the first engaging portion and the second engaging portion are engaged, the portion of the first heat insulating member facing the second heat insulating member and the portion of the second heat insulating member facing the first heat insulating member are in contact with each other.

6. The floor support unit according to claim 1 or 2, wherein the first engaging portion has a recess or a protrusion, and the second engaging portion has a protrusion that engages with the recess of the first engaging portion or a recess that engages with the protrusion of the first engaging portion.

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