JP7205713B2 - Bathroom washroom floor structure - Google Patents

Description

The present invention relates to a bathroom washroom floor structure.

BACKGROUND ART It is known to use a foam floor as a floor surface material for a washroom floor in a bathroom in order to ensure heat insulation and softness to step on. On the other hand, if a foam floor is used as the floor surface material, the softness of the foam floor makes it easy for a person to sink downward when placed on the floor. Therefore, there is a technique for suppressing sinking of the floor material by arranging a deck plate on a mount that supports the base material. However, with such a structure, there is a possibility that the presence of the deck plate may deteriorate the visibility of the mounting frame from above and the construction workability. Therefore, the applicant has devised a technique for suppressing the sinking of the foam bed without a deck plate by arranging a support material inside the foam bed.

For example, by foam-molding the foaming agent in a state in which the support material is arranged in the mold, the floor material can be molded in a state in which the support material is arranged inside. However, in such integral molding, fine unevenness may occur on the lower surface of the floor material. Such unevenness on the lower surface of the flooring material makes it difficult to stably attach the flooring material to the pedestal when placing the flooring material on the pedestal. For example, there is a risk of rattling of the floor material.

JP 2015-068018 A

The present invention has been made based on the recognition of such a problem. To provide a floor structure of a bathroom washing space in which a floor surface material can be stably attached.

A first invention provides a floor body having a floor material made of a thermoplastic foamed resin, a surface material provided on the floor material and forming a surface of a floor of a washing place, an outer frame, and the A frame body for supporting the floor body from below, having a grid portion that partitions the inside of the outer frame in a grid pattern and height-adjustable support legs; and a support member that has a rigidity higher than that of the floor member and suppresses the sinking of the floor member, and the floor member supports the support member with at least part of the support member exposed downward. The support member has an exposed portion that is exposed downward, and at least a portion of the frame body is disposed below the exposed portion of the support member, and the floor member is disposed through the exposed portion. This is a bathroom wash area floor structure characterized by supporting from below.

According to this bathroom washroom floor structure, the floor member holds the support member with at least a portion of the support member exposed downward, the support member has an exposed portion exposed downward, and the frame body is arranged below the exposed part of the support material, and by supporting the floor material from below via the exposed part, even if unevenness occurs on the lower surface of the floor material, the floor material It can be stably attached to the frame body (stand). For example, it is possible to prevent the floor material from rattling due to unevenness on the lower surface of the floor material.

In a second invention based on the first invention, at least an upper surface of the support member is arranged inside the floor member, and the exposed portion is arranged above a lower end of the floor member. It is a bathroom washing place floor structure characterized by being

From the viewpoint of heat insulation and strength, the floor material must have a predetermined thickness. For example, if a supporting member is provided on the lower surface of a plate-shaped floor member having a necessary thickness, the height of the floor of the washing area may unnecessarily increase by the height of the supporting member. On the other hand, if a support material is provided on the bottom surface of the plate-shaped floor material and the thickness of the floor material is reduced by the height of the support material in order to suppress the height of the floor of the washing area, the heat insulation of the floor material is improved. There is concern about a decrease in durability and strength.

According to this bathroom washroom floor structure, at least the upper surface of the support member is arranged inside the floor member, and the exposed portion is arranged above the lower end of the floor member. As a result, it is possible to prevent the height of the floor of the washing area from becoming unnecessarily high, while allowing the floor material to have an appropriate thickness in areas where there is no support material, and the floor material has appropriate heat insulation and strength. can be ensured.

ADVANTAGE OF THE INVENTION According to the present invention, a bathroom in which a flooring material can be stably attached even when a support member is provided inside the flooring material made of a thermoplastic foam resin to suppress the downward sinking of the flooring material. A washroom floor structure can be provided.

1 is a perspective view schematically showing a bathroom unit according to an embodiment; FIG. Fig. 3 is a perspective view schematically showing the floor structure of the washing area of the bathroom unit according to the embodiment; It is a bottom view showing typically the washing place floor structure of the bathroom unit concerning an embodiment. It is a cross-sectional view schematically showing the floor structure of the washing area of the bathroom unit according to the embodiment. It is a cross-sectional view schematically showing the floor structure of the washing area of the bathroom unit according to the embodiment. 6(a) and 6(b) are cross-sectional views schematically showing floor materials. It is a sectional view showing typically a modification of a washing place floor structure of a bathroom unit concerning an embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In addition, in each drawing, the same reference numerals are given to the same constituent elements, and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view schematically showing a bathroom unit according to an embodiment.
As shown in FIG. 1, the bathroom unit 2 includes a washing space floor 10, a bathtub 60, and wall panels 71a-71f.

Support legs 61 are provided in the vicinity of the four corners on the back surface of the bottom of the bathtub 60 , and the bathtub 60 is installed on a bathroom installation surface (for example, the floor of a building) 100 via the support legs 61 . A bolt portion is provided on the tip side (lower end side) of the support leg 61, and the height of the support leg 61 can be adjusted by rotating the bolt portion.

A washroom floor 10 is installed at the bottom of the space beside the bathtub 60. - 特許庁The surface 15a of the washing place floor 10 has waterproofness to prevent water from leaking out of the bathroom. In the specification of the present application, "water" includes not only cold water but also heated hot water.

A drainage pipe 62 is provided in the vicinity of the boundary with the bathtub 60 on the back side (lower side) of the floor 10 of the washing area. In the washing space floor 10, for example, in the vicinity of the boundary with the bathtub 60, a drain port communicating with the drain pipe 62 (closed by the detachable lid 63 in FIG. 1) is formed. The part where the drain is provided is recessed, and the surface 15a of the floor 10 of the washing place is provided with a drain slope inclined downward toward the drain. A drain port (not shown) provided at the bottom of the bathtub 60 is also connected to the drain pipe 62 .

Wall panels 71a to 71c are installed on the rim of the bathtub 60, as indicated by the two-dot chain line in FIG. Wall panels 71d to 71f are installed on the peripheral edge of the floor 10 of the washing space. A door is attached to the wall panel 71f via a door attachment frame (not shown).

A bath apron 67 is provided at the boundary between the bathtub 60 and the washing floor 10 to cover the side of the bathtub 60 on the washing floor 10 side. Depending on the structure of the bathtub 60, the bath apron 67 may not be provided.

A small panel 65b is provided between one longitudinal end of the bath apron 67 and the wall panel 71d. A small panel 65a is provided between the other longitudinal end of the bath apron 67 and the wall panel 71f. The small panels 65a and 65b are provided as required and can be omitted.

FIG. 2 is a perspective view schematically showing the floor structure of the washing area of the bathroom unit according to the embodiment.
As shown in FIG. 2 , the washroom floor 10 includes a floor body 15 and a frame body 30 . The floor body 15 has a floor surface material 11 , a cushion layer 12 and a surface material 13 . The floor material 11, the cushion layer 12, and the surface material 13 are all made of resin.

The floor surface material 11 of the floor body 15 is placed on the frame body 30 and supported by the frame body 30 . The floor member 11 is formed in a shallow vessel shape (bread shape) with a peripheral portion bent upward.

The floor material 11 is made of thermoplastic foamed resin. Examples of thermoplastic foamed resins include foamed polypropylene, foamed polystyrene, foamed polyethylene, and foamed polyurethane. In this embodiment, expanded polypropylene is used as an example.

The floor member 11 is formed with an opening 21 for a drain port. A portion where the opening 21 is provided is formed in a concave shape. In addition, the surface of the floor member 11 is formed with a drainage slope that is inclined downward toward the opening 21 .

The surface material 13 is provided on the floor material 11 with the cushion layer 12 interposed therebetween. The cushion layer 12 is provided between the floor material 11 and the surface material 13 . The cushion layer 12 is formed with an opening 22 for a drainage port.

The cushion layer 12 gives the user a feeling of soft floor surface. As the material of the cushion layer 12, for example, a soft material such as foamed polyurethane is used. By changing the hardness (softness) of the cushion layer 12, the hardness (softness) of the floor surface can be changed.

The hardness of the cushion layer 12 is lower than the hardness of the floor material 11. - 特許庁Also, the hardness of the cushion layer 12 is lower than the hardness of the surface material 13 . In other words, the rebound resilience of the cushion layer 12 is lower than the rebound resilience of the floor material 11 and the rebound resilience of the surface material 13 . Here, the rebound resilience can be determined, for example, based on the measurement method and measurement conditions for "rebound resilience" specified in JIS K 6400-3 of Japanese Industrial Standards. In this method, a steel ball is dropped onto the specimen and the bounce height is measured. For each of the three test pieces, the median value of the rebound height measurements is obtained, and the median value of all of them is defined as the "rebound resilience." The rebound resilience of the cushion layer 12 obtained by the above method is made lower than the rebound resilience of the floor material 11 and the rebound resilience of the surface material 13 . Thereby, high cushioning properties can be obtained in the cushion layer 12 . In addition, the floor body 15 can provide good stepping comfort.

The hardness of the cushion layer 12 is preferably, for example, a repulsive force of about 0.01 MPa to 0.95 MPa when compressed by 25%. More preferably, the hardness of the cushion layer 12 is, for example, a repulsive force of about 0.06 MPa when compressed by 25% in an environment of 23°C. Compression of 25% is, for example, compression of 10 mm to 7.5 mm.

The surface material 13 covers the upper surface of the floor material 11 and the cushion layer 12, and forms the surface 15a of the floor main body 15 (washing place floor 10). The surface material 13 gives the surface 15a of the floor body 15 an appearance design property and waterproofness.

As the material of the surface material 13, a soft resin sheet material having waterproofness and flexibility is used. The surface of the surface material 13 may be subjected to uneven processing or a pattern in order to improve the design and drainage of the surface 15 a of the floor body 15 .

The surface material 13 is formed with an opening 23 for a drain port. Moreover, the surface of the surface material 13 is formed with a drainage slope that is inclined downward toward the opening 23 . Due to the drainage gradient of the floor material 11 and the drainage gradient of the surface material 13 , a drainage gradient inclined downward toward the drainage port is formed on the surface 15 a of the floor body 15 .

The frame body 30 supports the floor body 15 from below. The frame body 30 has an outer frame 31 , a lattice portion 32 and support legs 33 . The outer frame 31, the lattice portion 32, and the support legs 33 are made of metal, for example. The outer frame 31 and the grid portion 32 are formed by combining steel materials, for example, and have sufficiently higher strength than the floor body 15 formed of resin. However, the material of the outer frame 31, the lattice portion 32, and the support legs 33 is not limited to metal. The material of the outer frame 31, the grid portion 32, and the support legs 33 may be, for example, a hard resin material such as FRP (Fiber-Reinforced Plastics). The material of the outer frame 31, the grid portion 32, and the support legs 33 may be any material having a higher strength than the floor body 15.

The outer frame 31 has four frames 31a-31d. The four frames 31a to 31d are combined in a rectangular shape to form the outer shape (outline) of the outer frame 31. As shown in FIG. The frames 31a and 31b extend parallel, and the frames 31c and 31d extend parallel. The area of the square area formed by the four frames 31a to 31d is substantially the same as the area of the square area formed by the floor body 15. As shown in FIG.

The length of the frames 31a, 31b is longer than the length of the frames 31c, 31d. The outer frame 31 has, for example, a rectangular shape when viewed from above. The frames 31a, 31b extend in the first horizontal direction HD1. The frames 31c and 31d extend in a second horizontal direction HD2 orthogonal to the first horizontal direction HD1. The first horizontal direction HD<b>1 is, for example, the longitudinal direction of the rectangular outer frame 31 , and the second horizontal direction HD<b>2 is, for example, the lateral direction of the rectangular outer frame 31 . The first horizontal direction HD1 is, in other words, the direction orthogonal to the direction in which the floor 10 and the bathtub 60 are aligned, and the second horizontal direction HD2 is, in other words, the direction in which the floor 10 and the bathtub 60 are aligned. parallel direction.

The grid portion 32 partitions the inner side of the outer frame 31 in a grid pattern. The lattice portion 32 suppresses bending of the floor body 15 by supporting a portion of the floor body 15 inside the outer frame 31 , for example. By providing the lattice portion 32 in this manner, the floor body 15 can be more appropriately supported by the frame body 30 .

The grid portion 32 has, for example, a plurality of first extension portions 41 and a plurality of second extension portions 42 . Each first extending portion 41 extends in the first horizontal direction HD1 and is arranged in the second horizontal direction HD2. Each second extending portion 42 extends in the second horizontal direction HD2 and is aligned in the first horizontal direction HD1. Thereby, the grid portion 32 partitions the inner side of the outer frame 31 so that a plurality of rectangular gaps are arranged in the first horizontal direction HD1 and the second horizontal direction HD2.

A part 41a of the plurality of first extensions 41 is provided between the frame 31c and the frame 31d. Another part 41 b of the plurality of first extensions 41 is provided between the second extensions 42 . In this way, the extension may extend entirely between the frames of the outer frame 31 or may extend only partially between the frames of the outer frame 31 .

However, the configuration of the lattice portion 32 is not limited to the above. The grid portion 32 may have, for example, only a plurality of first extensions 41 or may have only a plurality of second extensions 42 . Also, the extending direction of the plurality of extending portions may be different from the first horizontal direction HD1 and the second horizontal direction HD2. The grid portion 32 may have any configuration that partitions the inner side of the outer frame 31 in a grid pattern and can appropriately support the floor body 15 .

The frame body 30 has, for example, four support legs 33 provided corresponding to the four corners of the rectangular outer frame 31 . Each support leg 33 is provided on the lower surface of the lattice portion 32 . Each support leg 33 extends downward (installation surface side) from the lower surface of the lattice portion 32 . Each support leg 33 may be provided on the lower surface of the outer frame 31 .

The frame body 30 is installed on the installation surface 100 via each support leg 33 . A bolt portion is provided on the tip side (lower end side) of each support leg 33, and the height of each support leg 33 can be adjusted by rotating the bolt portion. By adjusting the height of each support leg 33, the installation height and horizontality of the floor body 15 supported on the frame body 30 are adjusted.

Further, the lattice portion 32 is provided with a plate in which an opening 34 for a drain is formed. The frame body 30, the floor material 11, the cushion layer 12 and the surface material 13 are stacked with their openings 21, 22, 23 and 34 aligned. Inside each opening 21, 22, 23, 34 a drainage pit is provided. The drainage pit is made of resin and has impermeability. A drainage port is provided inside the drainage pit. This drain port is connected to the drain pipe 62 . As a result, the water flowing on the surface 15a of the floor body 15 (washing place floor 10) is drained to the drain pipe 62 via the drain pit or the like.

FIG. 3 is a bottom view schematically showing the washing space floor structure of the bathroom unit according to the embodiment.
FIG. 4 is a cross-sectional view schematically showing the washing space floor structure of the bathroom unit according to the embodiment.
FIG. 4 schematically shows a cross section taken along line A1-A2 of FIG.
As shown in FIGS. 3 and 4, the washroom floor 10 further comprises a support 50. As shown in FIG. The support member 50 is provided on the floor member 11 . At least the upper surface of the support member 50 is arranged inside the floor member 11, for example. The support member 50 is provided inside the floor member 11, for example. The support material 50 is embedded in the lower part of the floor material 11, for example. Thereby, the support member 50 is placed on the frame body 30 together with the floor member 11 .

The support material 50 has higher rigidity than the floor material 11 . For the support member 50, for example, a metal material such as aluminum, stainless steel, or iron, or a thermosetting resin material is used. Thereby, the support material 50 suppresses sinking of the floor surface material 11 .

The support member 50 is provided below the surface 15 a of the floor body 15 and is provided on the frame body 30 without being directly fixed to the frame body 30 . In the present invention, the expression that the support member 50 is "directly fixed" to the frame body 30 means that the support member 50 is fixed to the frame body 30 by screwing or by bonding and fixing with an adhesive or the like. and so on. On the other hand, in the present invention, the support member 50 "is not directly fixed" to the frame body 30 means that the support member 50 is "fixed only indirectly" to the frame body 30. are also included in the definition. For example, the definition also includes the floor body 15 to which the support member 50 is fixed and which is fitted and fixed to the frame body 30 .

Thus, the support member 50 is not directly fixed to the frame body 30 by screwing, bonding, or the like. The state in which it is not directly fixed is, for example, a state in which it can be easily attached to and detached from the frame body 30 without using a tool or the like. For example, it is simply placed on the frame body 30 . The support member 50 is attachable to and detachable from the frame body 30 .

However, in the state where the bathroom unit 2 is assembled, the support member 50 is, for example, a tightening flange (connecting member between the drainage pit and the drainage pipe 62) provided at the drainage port of the floor surface member 11 and the floor body 15. may be indirectly fixed to the frame body 30 via the . The support member 50 is detachable without being fixed to the frame body 30 at least at the stage of construction of the frame body 30 and the floor member 11 .

The support member 50 has a plurality of first lateral support members 51a to 51g and a plurality of second lateral support members 52a and 52b. The first horizontal support members 51a to 51g extend in the first horizontal direction HD1 and have thickness in the height direction. The thickness in the height direction of the first horizontal support members 51a to 51g is, for example, 10 mm or more and 150 mm or less. The first horizontal support members 51a, 51c, 51e, 51f, and 51g, for example, extend in the first horizontal direction HD1 and are arranged in the second horizontal direction HD2. Similarly, the first lateral support members 51b, 51d, 51e, 51f, and 51g, for example, extend in the first horizontal direction HD1 and line up in the second horizontal direction HD2. Also, the first horizontal support members 51a and 51b are arranged in the first horizontal direction HD1. The first lateral support members 51c and 51d are arranged in the first horizontal direction HD1.

The second horizontal support members 52a and 52b extend in the second horizontal direction HD2 and are arranged in the first horizontal direction HD1. The second horizontal support members 52a and 52b have thickness in the height direction. The thickness in the height direction of the second horizontal support members 52a and 52b is, for example, 10 mm or more and 150 mm or less. The first lateral support members 51a-51g are provided between the second lateral support members 52a and 52b.

However, the number and arrangement of the first horizontal support members and the second horizontal support members are not limited to the above, and may be arbitrary. The direction in which the plurality of lateral support members extend is not limited to the first horizontal direction HD1 or the second horizontal direction HD2, and may be any horizontal direction.

The first lateral support members 51a to 51f are, for example, in the shape of square pipes (square cylinders) having a substantially rectangular cross section. On the other hand, the first horizontal support member 51g has, for example, a round pipe shape (cylindrical shape) having a substantially circular cross section. The second horizontal support members 52a and 52b are, for example, round pipes having a substantially circular cross section. Square pipes have higher rigidity than round pipes, but are more expensive than round pipes. Therefore, when the surface 15a of the floor body 15 has a drainage slope, a square pipe-shaped horizontal support member is placed near the drain port (the lowest point of the drainage slope) and in the thin part of the floor body 15. A round pipe-shaped horizontal support member is used for the thick portion of the floor body 15 near the outer periphery. For example, among the plurality of horizontal support members, a square pipe is used as the horizontal support member closest to the drainage port, and a round pipe is used as the horizontal support member farthest from the drainage port among the plurality of horizontal support members. As a result, it is possible to suppress the manufacturing cost of the floor 10 of the washing area while appropriately suppressing the sinking of the floor surface material 11 .

The plurality of first lateral support members 51a to 51g and second lateral support members 52a and 52b are arranged at positions where at least a portion thereof does not overlap the outer frame 31 and the lattice portion 32 of the frame body 30 when viewed from above.

The plurality of first extending portions 41 of the lattice portion 32 extend in the same direction as the plurality of first lateral support members 51a-51g. When viewed from above, the distance PT1 between the plurality of first extending portions 41 and the plurality of first lateral support members 51a to 51g is 10 cm or less. In other words, when viewed from above, the size of the gap between the plurality of first extending portions 41 and the plurality of first lateral support members 51a to 51g is 10 cm or less. Here, the size of the gap represents the maximum diameter of a circle that can fit within the gap between the plurality of first extending portions 41 and the plurality of first lateral support members 51a to 51g.

The plurality of second extending portions 42 of the lattice portion 32 extend in the same direction as the plurality of second lateral support members 52a, 52b. When viewed from above, the distance PT2 between the plurality of second extending portions 42 and the plurality of second lateral support members 52a, 52b is 10 cm or less. The spacings PT1, PT2 are more specifically the spacings between the extensions and the adjacent lateral supports.

A plurality of first lateral support members 51d to 51f are arranged between a portion of the plurality of first extension portions 41. As shown in FIG. Thereby, the interval PT3 of some of the plurality of first extension portions 41 can be set to 14 cm or more. Moreover, the interval PT4 of some of the plurality of second extension portions 42 is 14 cm or more.

FIG. 5 is a cross-sectional view schematically showing the washing space floor structure of the bathroom unit according to the embodiment.
FIG. 5 schematically shows a cross section along line B1-B2 of FIG.
As shown in FIG. 5, the floor member 11 holds the support member 50 with at least a portion of the support member 50 exposed downward.

The floor material 11 has, for example, an extension portion 11d extending downward from a portion of the support member 50 . In other words, the extension portion 11d is a portion that covers a portion of the support member 50 below and holds the support member 50 . The extension portion 11d can be formed, for example, by integrally molding the floor member 11 with the support member 50 with the support member 50 embedded therein. Thereby, the support member 50 can be held with at least part of the support member 50 exposed downward. However, the method of holding the support member 50 is not limited to the above, and any method capable of holding the support member 50 with at least a portion of the support member 50 exposed downward may be used.

The support member 50 has an exposed portion 50p exposed downward. As described above, the support member 50 is provided inside the floor member 11 . The exposed portion 50p is arranged above the lower end 11a of the floor member 11 . The exposed portion 50p is, for example, a portion of the support member 50 below which the floor member 11 made of thermoplastic foamed resin is not provided.

At least part of the frame body 30 is arranged below the exposed portion 50p of the support member 50, and supports the floor member 11 from below via the exposed portion 50p.

The exposed portion 50p is provided, for example, on each of the plurality of first lateral support members 51a to 51g and the second lateral support members 52a and 52b. The frame body 30 is positioned below the plurality of exposed portions 50p provided on each of the plurality of first lateral support members 51a to 51g and the second lateral support members 52a and 52b. The frame body 30 supports the plurality of first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b via the plurality of exposed portions 50p, respectively. and the second horizontal support members 52a and 52b to support the floor member 11 from below. Thus, the support member 50 has, for example, a plurality of exposed portions 50p, and supports the floor member 11 from below via the plurality of exposed portions 50p.

The frame body 30 supports the floor member 11 from below, for example, only through the plurality of exposed portions 50p. However, part of the frame body 30 may contact the lower end 11 a of the floor member 11 . The frame body 30 only needs to support the floor member 11 from below at least through the exposed portion 50p, and may further support the lower end 11a of the floor member 11 from below.

Note that the exposed portion 50p does not necessarily have to be provided for all of the plurality of first lateral support members 51a to 51g and the second lateral support members 52a and 52b. The exposed portion 50p may be provided on at least one of the plurality of first lateral support members 51a to 51g and the second lateral support members 52a and 52b. For example, when the support member 50 is composed of one member, it is not necessary to provide a plurality of exposed portions 50p. The number of exposed portions 50p may be one.

As shown in FIGS. 3 to 5, the washing space floor 10 further includes a cushion portion 54. As shown in FIGS. The cushion portion 54 is provided between the support member 50 and the frame body 30 . The cushion part 54 has lower rigidity than the support member 50 and the frame body 30 . The cushion part 54 has elasticity, for example. For example, the same thermoplastic foamed resin as the floor material 11 is used for the cushion portion 54 . The cushion part 54 is, for example, a sheet of thermoplastic foam resin having a thickness of about 1 mm to 5 mm. However, the material of the cushion portion 54 is not limited to the above, and any material having lower rigidity (elasticity) than the support member 50 and the frame body 30 may be used.

The exposed portion 50p of the support member 50 abuts on the frame body 30 with the cushion portion 54 interposed therebetween. However, the cushion part 54 is provided as needed and can be omitted. The exposed portion 50p of the support member 50 may directly abut on the frame body 30 .

6(a) and 6(b) are cross-sectional views schematically showing floor materials.
6(a) and 6(b) schematically show a cross section of a reference example in which the support member 50 is completely embedded in the floor member 11. FIG.

FIG. 6(a) schematically shows a state during or immediately after the formation of the flooring material 11. FIG. The flooring material 11 is formed, for example, by heating a foaming agent to foam the foaming agent in a mold. Therefore, during or immediately after the formation of the flooring material 11, the lower surface 11b and the upper surface 11c of the flooring material 11 are formed in a flat planar shape without unevenness according to the shape of the mold. In other words, the state during or immediately after the formation of the flooring material 11 is a state in which the flooring material 11 has heat.

FIG. 6(b) schematically shows a state in which the floor material 11 is cooled to normal temperature after forming the floor material 11. FIG. As shown in FIG. 6B, when the floor material 11 cools down, fine unevenness may occur on the lower surface 11b and the upper surface 11c. As a result of intensive studies, the applicant found that one of the causes of unevenness is the difference in the amount of heat shrinkage.

When the support material 50 is integrally formed inside the floor material 11, the thickness of the floor material 11 itself changes between the part with the support material 50 and the part without the support material 50. - 特許庁The thicknesses Tf1 and Tf2 of the flooring material 11 itself in the portions where the support members 50 are present are thinner than the thickness Tf3 of the flooring material 11 itself in the portions where the support members 50 are absent. The amount of heat shrinkage of the floor material 11 increases as the thickness increases. In other words, the applicant found that fine unevenness is generated on the lower surface 11b and the upper surface 11c of the flooring material 11 due to the difference in the amount of heat shrinkage caused by the difference in the thickness of the flooring material 11 itself.

Such unevenness of the lower surface 11b of the flooring material 11 makes it difficult to stably attach the flooring material 11 to the frame body 30 when the flooring material 11 is placed on the frame body 30 (mounting frame). put away. For example, the floor material 11 may rattle.

In contrast, in the wash space floor 10 (bathroom wash space floor structure) according to the present embodiment, the floor member 11 holds and supports the support member 50 with at least a portion of the support member 50 exposed downward. The material 50 has an exposed portion 50p that is exposed downward, and at least a portion of the frame body 30 is arranged below the exposed portion 50p of the support member 50 so that the floor material 11 can be seen from below through the exposed portion 50p. To support. Accordingly, even if the lower surface 11b of the floor member 11 is uneven, the floor member 11 can be stably attached to the frame body 30.例文帳に追加For example, it is possible to prevent the floor material 11 from rattling due to unevenness of the lower surface 11 b of the floor material 11 .

In the washing space floor 10 , at least the upper surface of the support member 50 is arranged inside the floor member 11 , and the exposed portion 50 p is arranged above the lower end 11 a of the floor member 11 . From the viewpoint of heat insulation and strength, the floor material 11 needs to have a predetermined thickness. For example, if the support member 50 is provided on the lower surface 11b of the plate-shaped floor member 11 having the required thickness, the height of the floor 10 of the washing area becomes unnecessarily high by the height of the support member 50. A possibility arises. On the other hand, if the support member 50 is provided on the lower surface 11b of the plate-shaped floor member 11 and the thickness of the floor member 11 is reduced by the height of the support member 50 in order to suppress the height of the floor 10 of the washing place. , there is a concern that the heat insulating properties and strength of the floor material 11 may be lowered.

In the washing space floor 10, by arranging the exposed portion 50p above the lower end 11a of the floor surface material 11, the height of the washing space floor 10 is suppressed from becoming unnecessarily high, and the floor is increased in the portion where the support member 50 is not provided. The surface material 11 can have an appropriate thickness, and the floor material 11 can ensure appropriate heat insulation and strength.

In addition, in the washing space floor 10, it is provided below the surface 15a of the floor body 15, is provided on the frame body 30 without being directly fixed to the frame body 30, and is provided above the floor surface material 11. By providing the support member 50 that has high rigidity and suppresses the sinking of the flooring material 11, even when the thermoplastic resin flooring material 11 is arranged on the frame body 30, it is possible for a person to wash the area. It is possible to prevent the floor material 11 from sinking significantly due to the load when it is placed on the floor 10.例文帳に追加In addition, it is not necessary to provide the frame body 30 with grids or the like with narrow intervals, so that visibility under the frame body 30 can be ensured and the support legs 33 can be easily adjusted. Therefore, it is possible to improve the workability while solving the problem that the floor surface material 11 sinks greatly and makes walking uncomfortable, and the problem that the drainage gradient required for the floor 10 of the washing place cannot be properly maintained.

In addition, in the washing place floor 10, the fact that the floor surface material 11 sinks greatly due to the plurality of first horizontal support members 51a to 51g and the plurality of second horizontal support members 52a and 52b having a thickness in the height direction is It can be suppressed more reliably. Furthermore, the upper ends of the first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b are located above the lower end 11a of the floor panel 11, so that the first horizontal support members 51a to 51g and the second horizontal support members It is possible to suppress the occurrence of a large step at the bottom of the floor surface material 11 between the places where the lateral support members 52a and 52b are arranged and the places where they are not arranged, and the intended drainage slope of the floor 10 for the washing place can be improved. can be properly maintained.

In addition, in the washing space floor 10, the first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b are positioned so that at least a portion thereof does not overlap the outer frame 31 and the lattice portion 32 of the frame body 30 when viewed from above. By arranging them, even if the number of horizontal support members is small, it is possible to more reliably prevent the floor member 11 from sinking.

In addition, in the washing space floor 10, the distance PT1 between the plurality of first extension portions 41 and the plurality of first lateral support members 51a to 51g is 10 cm or less in top view, and the plurality of second extension portions 42 and A distance PT2 between the plurality of second horizontal support members 52a and 52b is 10 cm or less. As a result, sinking of the floor surface material 11 is firmly suppressed by the plurality of first extension portions 41, second extension portions 42, first horizontal support members 51a to 51g, and second horizontal support members 52a and 52b. can do.

The intervals PT1 and PT2 are more preferably 7 cm or less. By setting the distances PT1 and PT2 to 7 cm or less, the distances PT1 and PT2 can be made smaller than, for example, the size of the feet of a person of age or older who can walk on two legs. Therefore, even if a person stands on the floor 10 of the washing area and a load is applied thereto, the load from the soles of the feet can be received by the frame body 30 and the supporting member 50, so that the body does not bend greatly. Therefore, it is possible to provide the washing space floor 10 with a more stable feeling. Thus, the intervals PT1 and PT2 are more preferably 7 cm or less in view of the size of children's feet.

In the washing place floor 10, a part of the floor surface material 11 is provided between the first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b. In other words, a portion of the floor material 11 is filled between the inserted first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b. In this case, the downward sinking of the floor member 11 and the spread in the width direction can be suppressed by the plurality of lateral support members sandwiching the floor member 11 . Therefore, for example, even if the distances PT1 and PT2 are set in the range of 7 cm to 10 cm, the floor material 11 may sink significantly under the weight of a relatively light child whose feet are about 7 cm. It can be suppressed more reliably.

For example, as described above, the interval PT3 of some of the plurality of first extension portions 41 and the interval PT4 of some of the plurality of second extension portions 42 can be set to 14 cm or more. This makes it easier for the builder's arm or the like to be put under the frame body 30, thereby further improving workability.

Further, in the washing place floor 10, by further including the cushion part 54, when a load is applied to the support material 50, it abuts against the metal frame body 30, which may cause abnormal noise, It is possible to prevent the material 50 from being damaged.

FIG. 7 is a cross-sectional view schematically showing a modification of the floor structure of the washing area of the bathroom unit according to the embodiment.
FIG. 7 schematically represents a section substantially the same as FIG. It should be noted that the same reference numerals are given to the elements that are substantially the same in terms of function and configuration as those of the above-described embodiment, and detailed description thereof will be omitted.

As shown in FIG. 7, the support member 50 is attached to the lower surface 11b of the floor member 11 in this example. Therefore, in this example, substantially the entire lower surface of the support member 50 is exposed downward. That is, in this example, substantially the entire lower surface of the support member 50 is the exposed portion 50p. Thus, the floor member 11 may hold the support member 50 in a state in which substantially the entire lower surface of the support member 50 is exposed downward. Such a configuration can be realized, for example, by adhering the support member 50 to the lower surface 11b of the floor member 11. As shown in FIG. Thus, the support material 50 does not necessarily have to be embedded inside the support material 50 .

Further, as shown in FIG. 7, in this example, the exposed portion 50p is arranged below the lower end 11a of the floor member 11. As shown in FIG. Thus, the exposed portion 50p does not necessarily have to be arranged above the lower end 11a of the flooring member 11 . However, as described above, by arranging the exposed portion 50p above the lower end 11a of the floor member 11, the floor member 11 is appropriately heat insulation and strength can be ensured.

In the above embodiment, the support member 50 has a plurality of independent first lateral support members 51a to 51g and a plurality of second lateral support members 52a and 52b. Without being limited to this, the support member 50 may be composed of one continuous member.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

2 bathroom unit 10 washing area floor 11 floor material 11a lower end 11b lower surface 11c upper surface 12 cushion layer 13 surface material 15 floor body 15a surface 21 opening 22 opening 23 opening 30 Frame body 31 Outer frame 31a-31d Frame 32 Lattice part 33 Support leg 34 Opening 41 First extension part 42 Second extension part 50 Support member 51a-51g First horizontal support member , 52a, 52b second horizontal support member 54 cushion part 60 bathtub 61 support leg 62 drainage pipe 63 lid 65a small panel 65b small panel 67 bath apron 71a to 71f wall panel 100 installation surface

Claims (2)

a floor body having a floor material made of a thermoplastic foamed resin, and a surface material provided on the floor material and forming a surface of a floor of a washing place;
a frame body for supporting the floor body from below, including an outer frame, a grid portion for partitioning the inner side of the outer frame in a grid pattern, and height-adjustable support legs;
a support member provided on the flooring material, having higher rigidity than the flooring material, and suppressing sinking of the flooring material;
with
The support member includes a predetermined number of members having a shape extending in a predetermined direction,
The floor material holds the support material with at least part of the support material exposed downward,
The support member has an exposed portion exposed downward,
At least part of the frame body is arranged below the exposed portion of the support member, and supports the floor member from below via the exposed portion. At least an upper surface of the support material is arranged inside the floor material,
2. The floor structure of the bathroom wash area according to claim 1, wherein the exposed portion is arranged above the lower end of the floor member.

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