JP2015017387A - Heat insulation structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an appropriate bathroom underfloor heat insulation structure.SOLUTION: A building unit 10 has a bathroom space in which a bathroom unit 20 is incorporated. The bathroom space is a non-installation area where no floor beams are provided, and in the bathroom space, brackets 15 are attached to a floor girder 12 and a receiving beam 14. The bathroom unit has a unit frame 21 for supporting a unit main body from the bottom and the unit frame 21 is supported by the brackets 15. An underfloor insulation material 31 is provided under the unit main body. The underfloor insulation material 31 is disposed at a position separated downward from a floor pan of the unit main body and is supported by frame brackets 41 attached to the unit frame 21. The underfloor insulation material 31 is constituted of plural heat insulating panels 32 disposed laterally.

Description

  The present invention relates to a heat insulating structure for a building having bathroom facilities.

  In a building such as a house, a bathroom is configured by installing a bathroom unit in which a bathtub, a floor pan, and the like are integrated as a bathroom facility. For example, there is a configuration in which an underfloor heat insulation structure for a bathroom is realized by installing a bathroom unit on a floorboard of a building and providing an underfloor heat insulating material below the floorboard (for example, Patent Document 1). . In this configuration, the floor board is fixed to the floor beam, the floor beam is installed on the building foundation, and the underfloor heat insulating material is fixed to the floor beam or the building foundation using a bracket such as a fixture.

JP 2000-96854 A

  However, in a configuration where the underfloor insulation is fixed to the floor beam or building foundation using brackets, it is necessary to use different brackets for each building according to the specifications of the floor beam or building foundation, and the cost burden on the bracket increases. Resulting in. In addition, using different brackets for each building makes it difficult to improve the work efficiency when fixing the underfloor heat insulating material.

  This invention is made | formed in view of the said situation, and makes it the main objective to construct | assemble the underfloor heat insulation structure of a bathroom suitably.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  The heat insulating structure of the building of the first invention is an equipment rack that supports the bathroom equipment provided in the building from below, and a bathroom bottom heat insulating material provided at a position spaced downward from the bottom surface of the bathroom equipment, And a support member that is attached to the facility base and supports the heat insulating material under the bathroom.

  According to 1st invention, since the heat insulating material under a bathroom is being fixed to the installation stand using the supporting member, it is not necessary to use a different supporting member for every building. Unlike the floor structure on the building side, bathroom facilities such as unit baths and equipment bases have been generalized (commonized), and these equipment bases have been generalized. This is because it is possible to generalize the support member attached to the frame. In this case, since a general-purpose product can be used without producing a dedicated product for each building, the cost burden can be reduced. In addition, since the work contents when fixing the heat insulating material under the bathroom using the support member can be made the same even if the specifications of the building are different, work efficiency can be improved. As described above, the underfloor heat insulation structure of the bathroom can be suitably constructed.

  In a second invention, in the first invention, the insulating material under the bathroom extends along the bathroom floor by providing a plurality of plate-like heat insulating panels side by side, and the support member is In the boundary part of the said adjacent heat insulation panel, the edge part of this heat insulation panel is supported.

  According to 2nd invention, since it is in the state by which the heat insulating material under the bathroom was divided | segmented into plurality by the some heat insulation panel, compared with the structure where the heat insulating material under the bathroom is not divided | segmented, it comprises the heat insulating material under the bathroom The carrying work of the member (insulation panel) to be performed can be facilitated.

  However, in the configuration in which the insulating material under the bathroom is divided into a plurality, since the boundary part of the insulating panel is arranged inside the peripheral edge of the insulating material under the bathroom, even if the insulating panels are connected to each other, There is a concern that the intermediate portion of the bathroom under heat insulating material (the connecting portion between the heat insulating panels) bends downward only by fixing the peripheral edge of the heat insulating material under the bathroom to the equipment base.

  On the other hand, according to this invention, since the supporting member is arrange | positioned in the boundary part of heat insulation panels in the heat insulating material under a bathroom, it can suppress that the peripheral part of the boundary part of heat insulation panels bends below. . In addition, by attaching the support member to the equipment base in advance, it is not necessary to install the support member on the equipment base by installing the equipment base after the operator has entered the lower side of the equipment base (under the floor space). The work of fixing the heat insulating material under the bathroom to the equipment base using the support member can be facilitated.

  In 3rd invention, in 2nd invention, the said installation stand is a non-installation area | region where the floor beam of the said building is installed in the floor part of the said building in which the floor beam is installed in multiple numbers, and the said floor beam is not installed And is fixed to the floor beam arranged outside the non-installation area, while being arranged in the non-installation area, and the support member is located at the boundary of the adjacent heat insulating panels, It is arranged at a position that overlaps the non-installation area vertically.

  According to 3rd invention, the part arrange | positioned in the non-installation area | region of a floor beam in a bathroom bottom heat insulating material can be fixed to an installation stand with a supporting member. For this reason, as long as the equipment stand can be fixed to the floor beam, it is not necessary to install the floor beam only for fixing the heat insulating material under the bathroom. In addition, since there is no obstacle called a floor beam in the non-installation area of the floor beam, it is possible to facilitate the installation work of the equipment rack and the installation work of the heat insulating material under the bathroom to the equipment rack.

  In 4th invention, in 3rd invention, the said installation stand is provided inside the said non-installation area rather than the outer frame material extended along the peripheral part of the said non-installation area | region, and the said outer frame material. , And an inner frame material on which the bathroom equipment is placed, and the support member is attached to the inner frame material.

  According to the fourth invention, since the inner frame material plays two roles of supporting the bathroom equipment from below and being an attachment target of the support member, the dedicated member for attaching the support member is a floor. It is not necessary to install in the non-installation area of the beam. Therefore, it can suppress that a cost burden increases because a support member is attached to an installation stand. In addition, by disposing the boundary portion of the heat insulating panel below the inner frame material, it is possible to prevent the structure of the support member that connects the inner frame material and the heat insulating panel from becoming complicated and the strength of the support member from being lowered.

  According to a fifth invention, in any one of the first to fourth inventions, the support member is in a support state supporting the bathroom under heat insulating material, does not support the bathroom under heat insulating material, and the bathroom. It is possible to shift to a retracted state spaced upward from the installation position of the lower heat insulating material.

  According to the fifth invention, since the support member can be shifted to the retracted state, it is possible to suppress the support member from being deformed or damaged when the equipment mount is transported. In addition, after the installation of the equipment base, it is possible to fix the heat insulating material under the bathroom to the equipment base using the support member by performing an easy operation of shifting the state of the support member.

  The sixth invention is applied to a building constructed by combining a plurality of building units having columns and large beams in the fifth invention, and the equipment mount does not protrude downward from the lower surface of the building unit. The support member is attached to the building unit, and the support member protrudes downward from the lower surface of the building unit when the support member is in the support state, and is moved from the lower surface of the building unit to the retracted state. It will be in the state which does not protrude below.

  According to the sixth invention, even if the under-bathroom heat insulating material is provided in a state of protruding downward from the lower surface of the building unit, the under-bathroom heat insulating material can be supported by the support member. Moreover, when the support member is moved to the retracted state, the support member does not protrude downward from the lower surface of the building unit, so when transporting the building unit with the equipment mount attached to the building unit. It can suppress that a supporting member deform | transforms or is damaged.

  According to a seventh invention, in the fifth or sixth invention, the equipment mount has a support frame material to which the support member is attached, and the support member is fixed to a side surface of the support frame material. The shaft is pivotally supported by the shaft support, and can move to the retracted state by rotating along the side surface.

  According to the seventh invention, the support member can be separated upward from the installation position of the heat insulator under the bathroom by an easy operation of rotating the support member. In this case, for example, compared to a configuration in which the support member slides up and down, the configuration in which the support member is moved to the retracted state so that the support member does not protrude upward from the support frame material can be simplified. it can.

  According to an eighth aspect, in the seventh aspect, the support member includes a stacked plate portion that is provided in a state of being stacked on a side surface of the support frame member and extends downward from the shaft support portion. And the width dimension of the said laminated board part is gradually made small toward the upper end from the lower end of the said laminated board part.

  According to 8th invention, the support stability of the heat insulation material under a bathroom by a laminated board part can be improved by making the width dimension of the lower end of a laminated board part larger than the width dimension of an upper end. On the other hand, since the width dimension of the upper end of the overlap plate portion is made as small as possible, it is possible to suppress the side portion of the overlap plate portion from protruding upward from the support frame material when the support member is rotated. .

  In a ninth invention, in any one of the first to eighth inventions, the floor portion of the building is applied to a building in which a floor heat insulating material is provided below a floor surface material, and below the bathroom facility. The under-bathroom heat insulating material is provided as the floor heat insulating material, and the support member is disposed at a position where the under-bathroom heat insulating material is lower than the floor heat insulating material other than below the bathroom facility. The under-bathroom insulation material is suspended and supported.

  According to the ninth aspect of the invention, since the under-bathroom heat insulating material is supported by being suspended by the support member, the under-bathroom heat insulating material can be installed in a proper state at a position lower than the floor heat insulating material. In addition, in the configuration in which the under-bathroom heat insulating material and the floor heat-insulating material are arranged in adjacent regions, the heat-insulating performance can be suitably imparted to the adjacent region by connecting the under-bathroom heat-insulating material and the floor heat-insulating material. . As an adjacent area | region, the installation area | region and non-installation area | region in 3rd invention are mentioned, for example. In this case, the floor heat insulating material is arranged in the installation area, and the heat insulating material under the bathroom is arranged in the non-installation area.

  According to a tenth invention, in any one of the first to ninth inventions, the support member extends downward from the equipment base and is fixed to the equipment base, and a side from the fixing part. And a placing portion on which the heat insulating material under the bathroom is placed.

  According to the tenth invention, the under-bathroom heat insulating material can be fixed to the equipment base by performing an easy operation of placing the under-bath heat-insulating material on the mounting portion of the support member.

The top view which shows the structure of the floor structure part of a building unit. Schematic which shows the state by which the bathroom unit was installed in the building unit. The exploded perspective view of the floor structure part of a building unit, and a unit mount. The top view which shows the structure of a heat insulating material under a bathroom. The perspective view of the bracket for mounts. BB sectional drawing of FIG. CC sectional view taken on the line of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In this embodiment, in the unit type building constructed | assembled combining a some building unit, it is set as the structure by which a bathroom unit is installed in any building unit. Since the structure of the building unit and the unit-type building is well known, explanation by illustration is omitted, but it will be explained briefly. The building unit has pillars at four corners, a ceiling beam that connects the upper ends of the columns, and a floor beam that connects the lower ends of the columns, and is formed in a rectangular parallelepiped shape as a whole. After the building unit is manufactured at the unit manufacturing factory, it is transported to the building construction site by a transporting means such as a truck. Then, the building unit is installed at the building construction site by using an installation means such as a crane, and the columns of the adjacent building units are connected to each other by a connecting member (docking plate or the like) to construct an integrated building body. It is like that.

  FIG. 1 is a plan view showing a configuration of a floor structure part of a building unit (a building unit for a bathroom) to be installed in a bathroom unit, and FIG. 2 is a schematic diagram showing a state in which the bathroom unit is installed in the building unit. FIG. 3 is an exploded perspective view of the floor structure portion of the building unit and the unit mount. 2 is also a diagram showing a cross-sectional view taken along line AA of FIG.

  In the building unit 10 shown in FIG. 1, the floor structure section has columns 11 arranged at the four corners of the building unit 10, and the floor beams 12 are connected in two directions perpendicular to the columns 11. Has been. The column 11 is made of square steel having a square cylindrical shape. Further, the floor girder 12 is made of channel steel having a U-shaped cross section, and is installed so that the opening faces each other, that is, the groove is directed to the inside of the unit.

  The floor structure section includes a bathroom space S1 in which a bathroom unit is incorporated, a short-side space S2 arranged side by side in the bathroom space S1 along the short direction of the building unit 10, and a longitudinal direction of the building unit 10. A longitudinal space S3 arranged side by side in the bathroom space S1 is set. In this case, the short side space S <b> 2 and the long side space S <b> 3 are arranged side by side along the longitudinal direction of the building unit 10.

  In the floor structure, a plurality of floor beams 13 are provided at a portion corresponding to the longitudinal space S3 so as to be bridged between a pair of floor beams 12 on the long side of each floor beam 12. The floor beam 13 is a floor beam made of, for example, square tubular square steel.

  The portions corresponding to the bathroom space S1 and the short side space S2 are not provided with the floor beam 13 and are bridged between the floor large beam 12 and the floor beam 13 on the short side. A beam 14 is provided. The receiving small beam 14 is a floor beam made of, for example, square tubular square steel. In this case, in the bathroom space S <b> 1, the long side floor large beam 12 and the receiving small beam 14 face each other, and a plurality of receiving metal fittings 15 are attached to the floor large beam 12 and the receiving small beam 14, respectively.

  The receiving beam 14 is disposed at the boundary between the bathroom space S1 and the short space S2. Here, the floor large beam 12, the floor beam 13 and the receiving beam 14 correspond to floor beams, and the bathroom space S1 is an area surrounded by these floor beams. The bathroom space S1 corresponds to a non-installation area where the floor beams are not installed, and the longitudinal space S3 corresponds to an installation area where the floor beams 13 are installed at predetermined intervals. Incidentally, the part corresponding to the bathroom space S1 in the floor structure part forms the floor part of the bathroom, and the parts corresponding to the short side space S2 and the long side space S3 are adjacent to the bathroom such as a dressing room and a corridor. The floor of the space to be formed will be formed.

  As shown in FIG. 2, the bathroom unit 20 is installed in a state of being supported by the receiving metal 15. The bathroom unit 20 includes a unit base 21 supported by the receiving bracket 15 and a unit body 22 installed on the unit base 21. The unit main body 22 includes a bathtub 22a, a floor pan 22b that forms a floor surface of the bathroom, and a wall panel 22c and a ceiling panel 22d that form a wall surface and a ceiling surface of the bathroom. In the unit body 22, the inner space is a bathroom space SB, and the bathtub 22a and the floor pan 22b are arranged side by side. The arrangement direction of the bathtub 22a and the floor pan 22b is the longitudinal direction of the building unit 10. Note that the direction in which the bathtub 22a and the floor pan 22b are arranged may be the short direction of the building unit 10.

  The unit base 21 supports the unit body 22 from below. Here, in the bathroom unit 20, the unit main body 22 corresponds to bathroom equipment, and the unit base 21 corresponds to the equipment base. Moreover, the floor pan 22b is equivalent to the bottom face part of the bathroom facility and constitutes the bathroom floor part.

  The unit mount 21 has a plurality of bolt legs 25 as leg members extending downward, and the bolt legs 25 are placed on the respective metal fittings 15 so that the building unit 10 has a bathroom. The unit 20 is installed. The bolt legs 25 are fixed to the receiving bracket 15 with an adhesive, a curing agent, or the like, and thereby the unit base 21 is fixed to the floor large beam 12 and the receiving beam 14. In this case, the bathroom unit 20 is installed over a pair of floor beams (floor beam 12 and receiving beam 14). The bolt leg 25 is a height adjustment function for holding the bathroom unit 20 at a predetermined height with respect to the floor structure of the building unit 10 and a level adjustment for adjusting the level (horizontal adjustment) of the height of the bathroom unit 20. Function (length adjustment function).

  As shown in FIG. 3, the unit pedestal 21 has a floor pan pedestal portion 27 disposed below the floor pan 22b and a bathtub pedestal portion 28 disposed below the bathtub 22a. The support surface (upper surface) of the bathtub gantry 28 is arranged at a position lower than the support surface of the floor pan gantry 27. In this case, the floor pan gantry 27 corresponds to the upper stage, and the bathtub gantry 28 corresponds to the lower part.

  Each of the floor pan frame part 27 and the bathtub frame part 28 is configured by connecting a plurality of frame materials (elongated square members) in directions orthogonal to each other. A plurality of bolt legs 25 extending downward are attached to each frame material in the floor pan frame portion 27 and the bathtub frame portion 28. In the present embodiment, four bolt legs 25 are provided on the floor pan frame portion 27, and two bolt legs 25 are provided on the bathtub frame portion 28. In addition, since the floor pan frame part 27 and the bathtub frame part 28 are provided in steps in the vertical direction, the bolt legs 25 of these frame parts 27 and 28 have different lengths. Leg length on 27 side> Leg length on bathtub stand 28 side ”.

  The floor bread gantry 27 is provided as an outer frame material 27a extending along the peripheral edge of the floor bread gantry 27 and a frame material that is disposed in parallel to the outer frame material 27a. The inner frame member 27b and the orthogonal frame member 27c orthogonal to the frame members 27a and 27b. Both the outer frame material 27a and the inner frame material 27b extend along the direction in which the floor pan frame portion 27 and the bathtub frame portion 28 are arranged, and connect the orthogonal frame materials 27c to each other. The upper surface of the inner frame member 27b is disposed at a position lower than the upper surface of the outer frame member 27a.

  The bathtub gantry 28 includes, as a frame material, an extension frame material 28a disposed on an extension line of the inner frame material 27b of the floor pan gantry 27, and a connecting frame material 28b that connects the extension frame materials 28a to each other. Yes. The extension frame member 28a extends in the same direction as the inner frame member 27b, and the extension frame member 28a and the inner frame member 27b are connected via an orthogonal frame member 27c disposed closest to the bathtub gantry 28 side. Yes. The inner frame member 27b is disposed side by side with the orthogonal frame member 27c, and the extension frame member 28a is disposed at a position lower than the orthogonal frame member 27c. A reinforcement frame material that reinforces the strength of the extension frame material 28a is provided below the extension frame material 28a.

  Below the unit base 21, an underfloor heat insulating material 31 for insulating the underfloor portion of the unit body 22 of the bathroom unit 20 is disposed. The underfloor heat insulating material 31 is formed in a rectangular plate shape as a whole, and is provided below the floor pan 22b and the bathtub 22a. Here, the lower surface portion of the unit main body 22 (the portion forming the lower surface of the floor pan 22b or the bathtub 22a) has a heat insulating layer different from the underfloor heat insulating material 31. It extends along the lower surface. In this case, the underfloor heat insulating material 31 is arranged in a state of covering the bathroom space S <b> 1 from below at a position spaced downward from the unit main body 22, and is fixed to the building unit 10 and the unit mount 21. The underfloor heat insulating material 31 corresponds to a bathroom under heat insulating material.

  The underfloor heat insulating material 31 is provided with an opening 31a penetrating in the vertical direction. The opening 31a is disposed at a position straddling the boundary between the floor pan pedestal 27 and the bathtub pedestal 28, and a drain pipe and a drain trap extending from the floor pan 22b and the bathtub 22a are provided through the opening 31a. It is pulled out below.

  The underfloor heat insulating material 31 has a plurality of heat insulating panels 32 formed of a plate heat insulating material such as polyethylene foam, and is formed in a plate shape by arranging these heat insulating panels 32 side by side. In this case, the underfloor heat insulating material 31 is divided into a plurality of parts by a plurality of heat insulating panels 32. The boundary portion between the heat insulating panels 32 includes a portion arranged at a position aligned with the inner frame member 27b.

  Next, the fixing structure of the underfloor heat insulating material 31 will be described with reference to FIGS. 4 is a plan view showing the configuration of the underfloor heat insulating material 31, FIG. 5 is a perspective view of the gantry bracket 41, FIG. 6 is a sectional view taken along line BB in FIG. 4, and FIG. 7 is a sectional view taken along line CC in FIG. It is. In FIG. 4, the illustration of the metal fitting 15 is omitted, and the illustration of the unit main body 22 is omitted in FIGS. 5 and 6.

  As shown in FIG. 4, the building foundation on which the building unit 10 is placed has a base portion 35 extending along the floor beam 12 to which the receiving beam 14 is connected. The foundation part 35 is a rising part that rises upward from the footing part of the building foundation, and the column 11 is erected on the upper surface of the foundation part 35.

  The peripheral edge portion of the underfloor heat insulating material 31 is fixed to the building unit 10 and the foundation portion 35, and a plurality of fixing positions N <b> 1 are arranged along the peripheral edge portion of the underfloor heat insulating material 31. Further, an intermediate portion of the underfloor heat insulating material 31 is fixed to the unit base 21, and a plurality of fixing positions N <b> 2 are arranged along the boundary portion of the adjacent heat insulating panels 32 inside the peripheral edge portion of the underfloor heat insulating material 31. Has been.

  The adjacent heat insulation panels 32 are connected to each other, and a plurality of connection positions M are arranged along the boundary portion of the adjacent heat insulation panels 32. In the underfloor heat insulating material 31, a plurality of boundary portions between adjacent heat insulating panels 32 are formed, and the fixed position N2 and the connecting position M are arranged at different boundary portions. Note that the end surfaces of the adjacent heat insulating panels 32 are joined to each other by an adhesive or the like regardless of whether or not they are at the connection position M.

  At the fixed position N2, the gantry bracket 41 attached to the unit gantry 21 supports the underfloor heat insulating material 31. As shown in FIGS. 3 and 5, a plurality of gantry brackets 41 are provided along the inner frame member 27b of the floor pan gantry 27, and are fixed to the inner frame member 27b. The gantry bracket 41 is attached to a portion of the inner frame member 27b that is lined up and down at the boundary between the heat insulating panels 32. The gantry bracket 41 corresponds to a support member that supports the underfloor heat insulating material 31, and the inner frame material 27b corresponds to a support frame material to which the gantry bracket 41 as a support member is attached.

  The gantry bracket 41 has a fixed plate portion 41a as a fixed portion fixed to the inner frame member 27b, and a mounting plate portion 41b as a mounting portion on which the heat insulating panel 32 is placed. The fixed plate portion 41a and the mounting plate portion 41b extend in directions orthogonal to each other, and the gantry bracket 41 is formed in an L shape by bending a metal plate material. The gantry bracket 41 may be made of a synthetic resin material or the like molded in an L shape.

  The gantry bracket 41 suspends and supports the underfloor heat insulating material 31, and the fixed plate portion 41a extends downward from a fixed portion with respect to the inner frame material 27b. The mounting plate portion 41b extends in the thickness direction of the fixed plate portion 41a from the lower end of the fixed plate portion 41a. A plurality of mounting plate portions 41b are arranged along the lower end of the fixed plate portion 41a, and one of the adjacent mounting plate portions 41b faces toward the opposite side to the other in the thickness direction of the fixed plate portion 41a. It extends. In this case, the frame bracket 41 supports the adjacent heat insulating panels 32 in a hooked state by placing the heat insulating panels 32 on the mounting plate portions 41b at the boundary between the heat insulating panels 32. (See FIG. 7).

  The gantry bracket 41 is attached to the inner frame member 27b so as to be rotatable along the side surface of the inner frame member 27b. A shaft support portion 42 is attached to the side surface of the inner frame member 27b, and the upper end portion of the fixed plate portion 41a is supported by the shaft support portion 42. The shaft support portion 42 is a fixing tool such as a bolt or a screw that fixes the fixing plate portion 41a to the side surface of the inner frame member 27b, and can rotate the fixing plate portion 41a and is inclined with respect to the vertical direction. It is fixed to the inner frame member 27b with such a strength that it can be held at a predetermined inclination angle. A shaft support hole such as a bolt hole or a screw hole through which the shaft support portion 42 passes is formed in the fixed plate portion 41a.

  The fixed plate portion 41a is disposed at a height position where the upper end of the fixed plate portion 41a does not protrude upward from the inner frame member 27b. Further, the fixed plate portion 41a is shaped so as not to protrude upward from the inner frame member 27b even if it rotates about the shaft support portion. In the fixed plate portion 41a, the width dimension of the upper end portion is made smaller than the width dimension of the lower end portion, and the width dimension is gradually reduced in a tapered shape from the lower end to the upper end, and the trapezoidal shape as a whole. It has become. With respect to the upper end portion of the fixed plate portion 41a, in the width direction of the fixed plate portion 41a, the separation distance from the shaft support portion 42 to the side end is the same as or smaller than the separation distance from the shaft support portion 42 to the upper end.

  In the fixed plate portion 41a, the corner portion at the upper end may be chamfered. Thereby, when the fixed plate part 41a rotates, it can prevent more reliably that the corner part of the upper end protrudes upwards rather than the inner side frame material 27b.

  As shown in FIGS. 6 and 7, the underfloor heat insulating material 31 is installed in a state of protruding downward from the building unit 10. The lower surface of the underfloor heat insulating material 31 is disposed at a position lower than the lower surface of the floor beam 12, and the gantry bracket 41 is in a support state in which the underfloor heat insulating material 31 is supported. In the support bracket 41 in the support state, the fixed plate portion 41 a enters the boundary portion between the heat insulating panels 32 from above, and the mounting plate portion 41 b is disposed below the heat insulating panels 32. . In this case, the gantry bracket 41 projects downward from the lower surface of the building unit 10.

  Here, during the transportation of the building unit 10 or before the installation of the underfloor heat insulating material 31, the gantry bracket 41 can be shifted to a retracted state different from the supported state by rotating. When the gantry bracket 41 is in the retracted state, the lower end of the gantry bracket 41 is disposed at a position spaced upward from the installation position of the underfloor heat insulating material 31. Further, in this case, the lower end of the gantry bracket 41 is disposed at a position higher than the lower surface of the building unit 10 (the lower surface of the floor beam 12).

  Returning to the description of FIG. 4, at the fixed position N <b> 1, the beam side bracket 45 attached to the floor beam such as the floor beam 12 or the foundation side bracket 46 attached to the foundation part 35 supports the underfloor heat insulating material 31. Yes. The beam-side bracket 45 and the foundation-side bracket 46 are arranged at positions that can support the corner portions of the heat insulation panel 32 at the peripheral edge of the underfloor heat insulating material 31. For example, the beam side bracket 45 is disposed at the corner portion of the underfloor heat insulating material 31, and the beam side bracket 45 or the foundation side bracket 46 is disposed at the boundary portion between the heat insulating panels 32 at the peripheral portion of the underfloor heat insulating material 31. .

  As shown in FIGS. 6 and 7, a floor material 52 is installed on the floor beam 13 and the receiving beam 14 via a joist 51, and on the beam below the floor material 52. A heat insulating material 53 is provided. The floor material 52 is formed of particle board, plywood or the like. The on-beam heat insulating material 53 is disposed at a position higher than the under-floor heat insulating material 31, and the end portions of the above-mentioned heat-insulating material 53 on the beam and the under-floor heat insulating material 31 are arranged vertically. Between the on-beam heat insulating material 53 and the under-floor heat insulating material 31, a connecting heat insulating material 54 for connecting the above-mentioned heat-insulating material 53 with the under-floor heat insulating material 31 is provided. The on-beam heat insulating material 53 and the connection heat insulating material 54 are formed of a plate-shaped heat insulating material such as polyethylene foam, similarly to the heat insulating panel 32. The on-beam heat insulating material 53 and the under-floor heat insulating material 31 both correspond to a floor heat insulating material provided below the floor surface material 52.

  The connection heat insulating materials 54 are respectively disposed at positions opposite to the unit base 21 with the floor beam 13 and the receiving beam 14 interposed therebetween, and are fixed to the floor beam 13 and the receiving beam 14. . The connection heat insulating material 54 and the underfloor heat insulating material 31 are connected by a beam side bracket 45. The beam side bracket 45 is provided in a state of straddling the boundary between the connection heat insulating material 54 and the underfloor heat insulating material 31, and is fixed to each of the connection heat insulating material 54 and the under floor heat insulating material 31 by a fixing tool such as a screw. Yes. In this case, the underfloor heat insulating material 31 is fixed to the floor beam 13 and the receiving beam 14 via the beam side bracket 45 and the connection heat insulating material 54.

  An underfloor heat insulating material 31 is fixed via a beam-side bracket 45 to a portion of the floor girder 12 where the base portion 35 is not provided below. The underfloor heat insulating material 31 is disposed below the floor girder 12, and the beam side bracket 45 fixed to the floor girder 12 includes an upper hook portion hooked on the lower flange of the floor girder 12, and underfloor heat insulation. And a lower hook portion hooked on the material 31. An in-beam heat insulating material 55 is provided in the groove portion of the floor girder 12, and the in-beam heat insulating material 55 and the under-floor heat insulating material 31 are in a continuous state from the viewpoint of heat insulating performance.

  In the portion of the floor girder 12 where the foundation portion 35 is provided below, the underfloor heat insulating material 31 is fixed to the foundation portion 35 instead of the floor girder 12 via the foundation side bracket 46. The underfloor heat insulating material 31 is disposed on the side of the base portion 35, and the base side bracket 46 includes an upper hook portion hooked on the upper end surface of the base portion 35 and a lower hook hooked on the underfloor heat insulating material 31. Part. Here, a gap heat insulating material 56 is provided in the gap between the floor beam 12 and the base portion 35. The gap heat insulating material 56 is formed of a heat insulating material such as glass wool and is in contact with the underfloor heat insulating material 31. In this case, the in-beam heat insulating material 55 and the underfloor heat insulating material 31 are continuous through the gap heat insulating material 56 from the viewpoint of heat insulating performance.

  The opening 31a of the underfloor heat insulating material 31 is provided with a closing heat insulating material 57 that closes a gap portion in a state where the drain pipe and the drain trap are installed. The closing heat insulating material 57 is formed of a heat insulating material such as glass wool.

  In the connection position M (see FIG. 4), the heat insulating panels 32 are connected by a connecting member 61. The connecting member 61 has a pair of grooves facing opposite to each other, and the heat insulating panels 32 are respectively fitted in the grooves, thereby connecting the heat insulating panels 32. The gantry bracket 41, the beam side bracket 45, and the foundation side bracket 46 are also arranged at the boundary between the adjacent heat insulation panels 32, thereby connecting the heat insulation panels 32.

  Then, the installation procedure of the building unit 10 and the underfloor heat insulating material 31 is demonstrated.

  First, the building unit 10 and the bathroom unit 20 are manufactured in a factory, and the bathroom unit 20 is installed in the bathroom space S1 of the building unit 10. Then, the gantry bracket 41 is moved to the retracted state instead of the supported state, and the bathroom unit 20 is transported together with the building unit 10 from the factory to the construction site. In this case, since the gantry bracket 41 does not protrude downward from the building unit 10, the gantry bracket 41 may be deformed or damaged during transportation of the building unit 10, or the gantry bracket 41 may transport the building unit 10. Can be prevented.

  Here, the floor pan 22b is placed on the inner frame member 27b of the unit base 21. However, in the base bracket 41, even if the base bracket 41 is rotated, the upper end of the fixed plate portion 41a is not changed. Since the corner portion does not protrude above the inner frame member 27b, the upper end of the fixed plate portion 41a comes into contact with the floor pan 22b, and the rotation angle of the gantry bracket 41 is limited. You can avoid that.

  Thereafter, the building unit 10 transported to the construction site is installed on the foundation part 35, and a plurality of heat insulating panels 32 are arranged below the unit mount 21 to form the underfloor heat insulating material 31. In this case, the gantry bracket 41 is rotated to shift from the retracted state to the support state, and the end of the heat insulating panel 32 is hooked on the mounting plate portion 41 b of the gantry bracket 41. Further, the underfloor heat insulating material 31 is fixed to the large floor beam 12, the small floor beam 13, the receiving small beam 14, and the foundation portion 35 using the beam side bracket 45 and the foundation side bracket 46.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the underfloor heat insulating material 31 is fixed to the unit base 21 using the base bracket 41, there is no need to use a base bracket 41 different for each building. Unlike the floor structure on the building side, it is easy to generalize (standardize) the specifications of the unit base 21, and a generalized base bracket 41 can be attached to the generalized unit base 21. Because. In this case, for the gantry bracket 41, a general-purpose product can be used without producing a dedicated product for each building, so that the cost burden can be reduced. In addition, since the work contents when fixing the underfloor heat insulating material 31 using the gantry bracket 41 can be the same even if the specifications of the building are different, work efficiency can be improved. As described above, the underfloor heat insulation structure of the bathroom can be suitably constructed.

  Since the underfloor heat insulating material 31 is formed by a plurality of heat insulating panels 32 arranged side by side, the work of transporting the member (the heat insulating panel 32) when constructing the underfloor heat insulating material 31 can be facilitated. Moreover, since the bracket 41 for mounts is arrange | positioned in the boundary part of heat insulation panels 32, it can suppress that the peripheral part of the boundary part bends below. Moreover, it is necessary to attach the mounting bracket 41 to the unit mounting 21 in advance by installing the mounting bracket 41 on the unit mounting 21 in advance, so that after the unit mounting 21 is installed, an operator enters the lower side of the unit mounting 21 and attaches the mounting bracket 41 to the unit mounting 21. Therefore, the work of fixing the underfloor heat insulating material 31 to the unit base 21 using the base bracket 41 can be facilitated.

  In the bathroom space S1 where the floor beam 13 is not installed, the underfloor heat insulating material 31 is supported by the mounting bracket 41. Therefore, as long as the unit base 21 can be fixed to the floor beam such as the large floor beam 12, the underfloor heat insulation is provided. It is not necessary to install the floor beam 13 and the receiving beam 14 only for fixing the material 31. Moreover, in the bathroom space S1, since there are no obstacles such as the floor beam 13 and the receiving beam 14, the installation work of the unit base 21 and the attachment work of the underfloor heat insulating material 31 to the unit base 21 can be facilitated.

  In the unit base 21, the base bracket 41 is attached to the inner frame material 27 b on which the unit main body 22 is placed, so that the inner frame material 27 b is connected to the unit main body 22 and the base bracket 41 (underfloor heat insulating material 31. ) Is supported, it is not necessary to install a dedicated member for attaching the mounting bracket 41 in the bathroom space S1. Therefore, it is possible to suppress an increase in cost burden because the mounting bracket 41 is attached to the unit mounting 21.

  Moreover, since the boundary portion of the heat insulation panel 32 is disposed below the inner frame material 27b, the fixing position of the gantry bracket 41 on the inner frame material 27b and the support position of the gantry bracket 41 on the heat insulation panel 32 are determined. Since the separation distance is made as small as possible, it is possible to suppress the structure of the gantry bracket 41 from being complicated and the strength of the gantry bracket 41 from being lowered.

  When building the building, by shifting the gantry bracket 41 to the retracted state, the gantry bracket 41 can be prevented from being deformed or damaged when the unit gantry 21 is transported. Moreover, after the unit base 21 is installed, it is possible to fix the underfloor heat insulating material 31 to the unit base 21 using the base bracket 41 by performing an easy operation of shifting the state of the base bracket 41. Become.

  Since the gantry bracket 41 does not protrude downward from the building unit 10 in the retracted state, when the building unit 10 with the unit gantry 21 attached is transported, the gantry bracket 41 is not transported. It is possible to prevent the hindrance and the gantry bracket 41 from being deformed or damaged.

  Since the gantry bracket 41 is pivotally attached to the inner frame member 27b, the gantry bracket 41 is installed at the installation position of the underfloor heat insulating material 31 by performing an easy operation of rotating the gantry bracket 41. Can be spaced upwards from each other. In this case, compared to the configuration in which the gantry bracket 41 slides up and down, the configuration in which the gantry bracket 41 is shifted to the retracted state so that the gantry bracket 41 does not protrude upward from the inner frame member 27b is simplified. Can be made.

  Since the fixed plate portion 41a of the gantry bracket 41 has a tapered shape, the width of the lower end portion of the fixed plate portion 41a is increased to increase the support stability of the underfloor heat insulating material 31. On the other hand, since the width of the upper end portion is reduced, the upper plate portion is less likely to protrude upward than the inner frame member 27b even if the fixed plate portion 41a is rotated.

  Since the mounting bracket 41 has the mounting plate 41b, the underfloor heat insulating material 31 is fixed to the unit mounting 21 by performing an easy operation of placing the heat insulating panel 32 on the mounting plate 41b. be able to. Further, since the underfloor heat insulating material 31 is supported by being suspended by the gantry bracket 41, the underfloor heat insulating material 31 can be installed in a proper state at a position lower than the beam heat insulating material 53.

  In the configuration in which the installation heights of the inner frame member 27b and the extension frame member 28a are different, since a plurality of mount brackets 41 are attached to the inner frame member 27b, the extension frame member is attached to the mount brackets 41. Unlike the configuration in which what is attached to 28a is included, all the brackets 41 for the gantry can have the same specification. For this reason, the cost burden regarding the bracket 41 for mounts can be reduced compared with the structure using the bracket 41 for mounts of multiple use.

  The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  (1) In the above embodiment, the gantry bracket 41 supports the end of the heat insulating panel 32 at the boundary between the heat insulating panels 32 (the inner side of the peripheral edge of the underfloor heat insulating material 31). 41 may support the end of the heat insulating panel 32 at the peripheral edge of the underfloor heat insulating material 31. In this case, in the mounting bracket 41, the mounting plate portion 41b does not need to extend toward the side where the heat insulating panel 32 does not exist. In the configuration in which the underfloor heat insulating material 31 is not divided into a plurality of parts, that is, in the configuration in which the underfloor heat insulating material 31 is formed by one heat insulating panel 32, the gantry bracket 41 is connected to the peripheral portion of the underfloor heat insulating material 31. Will be placed.

  (2) In the above embodiment, the underfloor heat insulating material 31 is placed and supported on the mounting plate portion 41 b of the gantry bracket 41, but the underfloor heat insulating material 31 is supported by the gantry bracket 41. For example, it does not need to be placed on the placing plate portion 41b. For example, the gantry bracket 41 has a protruding portion that protrudes laterally from the fixed plate portion 41 a, and the protruding portion is embedded in the side surface of the underfloor heat insulating material 31 to support the underfloor heat insulating material 31. Or a protruding part is overlaid on the upper surface of the underfloor heat insulating material 31, and a fixture such as a screw penetrates the underfloor heat insulating material 31 and is driven into the protruding part.

  (3) In the above embodiment, the gantry bracket 41 is fixed to the side surface of the inner frame member 27b. However, the gantry bracket 41 may be fixed to the upper surface and the lower surface of the inner frame member 27b. Further, the gantry bracket 41 is configured not to shift to the retracted state by rotating, but to move to the retracted state by sliding in the vertical direction or by extending or contracting the fixed plate portion 41a. Also good. Furthermore, the gantry bracket 41 may be fixed to any frame material of the unit gantry 21 instead of the inner frame material 27b.

  (4) In the above embodiment, the unit main body 22 in which the bathtub 22a and the floor pan 22b are integrated is installed on the unit base 21 as a bathroom facility, but the bathtub 22a and the floor pan 22b are integrated. Alternatively, the bathtub 22a and the floor pan 22b may be individually installed on the unit base 21 as bathroom facilities. For example, in a configuration in which the bathtub 22a is installed on the unit mount 21 as a bathroom facility, the mount bracket 41 is attached to the extension frame material 28a on which the bathtub 22a is placed, and the underfloor insulation 31 is provided below the bathtub 22a. Is preferably supported.

  (5) In the above embodiment, the underfloor heat insulating material 31 is provided on the lower side of the building unit 10, but the underfloor heat insulating material 31 may be provided in a state of entering above the lower surface of the building unit 10. Good. For example, the underfloor heat insulating material 31 is configured to be provided at a position higher than the lower surface of the building unit 10. In this configuration, even when the gantry bracket 41 is in the support state, the gantry bracket 41 does not need to protrude below the building unit 10, so that the gantry bracket 41 can be shifted to the retracted state. There is no need.

  (6) In the above embodiment, the bathroom space S1 is the non-installation area of the floor beam. However, if the unit mount 21 can be installed in the bathroom space S1, the bathroom beam S1 also has the floor beam 13. A receiving beam 14 may be provided. For example, when the distance between the large floor beam 12 and the small floor beam 13 facing each other across the bathroom space S1 is larger than a predetermined distance (for example, 50 cm), the small floor beam 13 and the receiving small beam 14 are in the bathroom space S1. It is preferable to be provided.

  (7) In the above embodiment, the unit mount 21 is disposed on the side of the bathroom space S1 with respect to the floor beam such as the large floor beam 12, but the unit mount 21 may be installed on the floor beam. For example, the unit base 21 is not placed on the receiving bracket 15, but the unit base 21 is placed on the floor large beam 12 and the receiving beam 14.

  (8) In the above embodiment, the receiving bracket 15 that supports the unit base 21 is attached to each of the large floor beam 12 and the receiving small beam 14 that are arranged along the short direction of the building unit 10. May be attached to each of the large floor beam 12 and the small floor beam 13 arranged in the longitudinal direction. In this case, the unit mount 21 is fixed to the floor large beam 12 and the floor beam 13 via the receiving metal 15.

  (9) A plurality of receiving small beams 14 that connect the floor large beam 12 and the floor small beam 13 may be provided, and the bathroom space S1 may be disposed between the adjacent receiving small beams 14. In this case, it is preferable that the receiving metal 15 is attached to each of the receiving beams 14 adjacent to each other with the bathroom space S <b> 1 interposed therebetween, and the unit base 21 is fixed to each receiving beam 14 via the receiving metal 15.

  Further, the short side space S2 may not be provided. That is, the bathroom space S <b> 1 may be disposed between the pair of floor beams 12. In this case, it is preferable that the receiving bracket 15 is attached to each of the pair of floor beams 12, and the unit base 21 is fixed to the pair of floor beams 12 via the receiving bracket 15.

  Furthermore, the bathroom space S <b> 1 may be disposed between the opposed floor beams 13 instead of being disposed between the opposed floor beams 12 and 13. In this case, it is preferable that the receiving bracket 15 is attached to each of the adjacent floor beams 13, and the unit base 21 is fixed to each floor beam 13 via the receiving bracket 15.

  DESCRIPTION OF SYMBOLS 10 ... Building unit, 11 ... Column, 12 ... Floor girder as floor beam and large beam, 13 ... Floor beam as floor beam, 14 ... Receiving beam as floor beam, 21 ... Unit frame as equipment frame, 22 ... Unit body as bathroom equipment, 22b ... Floor pan as bottom part constituting bathroom floor part, 27a ... Outer frame material, 27b ... Inner frame material as support frame material, 31 ... Under-bathroom insulation and floor Underfloor heat insulating material as a heat insulating material, 32... Heat insulating panel, 41... Bracket for support as a supporting member, 41 a... Fixed plate portion as a fixing portion and a stacking plate portion, 41 b. ... shaft support, 53 ... heat insulating material on the beam as a floor heat insulating material, S1 ... bathroom space as a non-installation area of the floor beam.

Claims (10)

An equipment stand that supports the bathroom equipment provided in the building from below;
Under-bathroom insulation provided at a position spaced downward from the bottom surface of the bathroom facility;
A support member attached to the equipment base and supporting the heat insulating material under the bathroom;
Insulating structure of a building characterized by comprising. The heat insulating material under the bathroom extends along the bathroom floor by providing a plurality of plate-like heat insulating panels side by side,
The heat insulating structure for a building according to claim 1, wherein the support member supports an end portion of the heat insulating panel at a boundary portion between adjacent heat insulating panels. The equipment mount is arranged in the non-installation area among an installation area where a plurality of floor beams are installed at predetermined intervals and a non-installation area where the floor beams are not installed in the floor portion of the building. On the other hand, it is fixed to the floor beam arranged outside the non-installation area,
The heat insulating structure for a building according to claim 2, wherein the support member is disposed at a position overlapping vertically with the non-installation region in a boundary portion between the heat insulating panels adjacent to each other. The equipment stand is
An outer frame material extending along a peripheral edge of the non-installation area;
An inner frame material provided on the inner side of the non-installation area than the outer frame material, on which the bathroom equipment is mounted,
Have
The heat insulating structure for a building according to claim 3, wherein the support member is attached to the inner frame material.   The support member is in a support state that supports the under-bathroom heat insulating material, and does not support the under-bathroom heat insulating material, and is capable of transitioning to a retracted state spaced upward from the installation position of the under-bathroom heat insulating material. The heat insulating structure for a building according to any one of claims 1 to 4, wherein the structure is a heat insulating structure. Applies to buildings built by combining multiple building units with columns and beams
The equipment stand is attached to the building unit without protruding downward from the lower surface of the building unit,
The support member is in a state of protruding downward from the lower surface of the building unit when in the support state, and is not protruded downward from the lower surface of the building unit by transitioning to the retracted state. The heat insulating structure for a building according to claim 5, wherein the heat insulating structure is a building. The equipment mount has a support frame material to which the support member is attached,
The support member is pivotally supported by a pivotal support portion fixed to a side surface of the support frame member, and can move to the retracted state by rotating along the side surface. The heat insulation structure for a building according to claim 5 or 6, The support member is
It is provided in a state where it is stacked on the side surface of the support frame material, and has a stacked plate portion extending downward from the shaft support portion,
The heat insulation structure for a building according to claim 7, wherein an upper end portion of the width dimension of the overlapping plate portion is smaller than a lower end portion of the overlapping plate portion. In the floor of the building, it is applied to a building where floor insulation is provided below the floor material,
Below the bathroom facility, the bathroom bottom insulation is provided as the floor insulation,
The support member suspends and supports the under-bathroom heat insulating material so that the under-bathroom heat insulating material is disposed at a position lower than the floor heat insulating material other than below the bathroom facility. The heat insulation structure for a building according to any one of claims 1 to 8. The support member is
A fixed portion extending downward from the equipment base and fixed to the equipment base;
A mounting portion that extends sideways from the fixed portion and on which the heat insulating material under the bathroom is placed,
The building heat insulation structure according to claim 1, wherein the building heat insulation structure is provided.

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