JP7223253B2 - 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 irregularities may occur on the upper surface of the floor material. 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 supporting material is integrally formed inside the flooring material, the thickness of the flooring material itself changes between the part with the supporting material and the part without the supporting material. The thickness of the flooring material itself in the part with the support material is thinner than the thickness of the flooring material itself in the part without the support material. The amount of heat shrinkage of the floor material increases with the thickness. In other words, the applicant found that fine unevenness is generated on the upper surface of the flooring material due to the difference in the amount of heat shrinkage caused by the difference in the thickness of the flooring material itself. The unevenness of the upper surface of the floor material affects the comfort of stepping on.

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 washroom that can suppress deterioration of stepping comfort due to unevenness on the upper surface of a floor surface material.

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 inner side of the outer frame in a grid pattern and height-adjustable support legs; a support material that has higher rigidity than the floor material and suppresses sinking of the floor material, and the floor body has a cushion layer provided between the floor material and the surface material. Further, the floor structure of the bathroom washing space is characterized in that the hardness of the cushion layer is lower than the hardness of the floor surface material.

According to this bathroom washroom floor structure, the difference in the thickness of the flooring material itself occurs due to the provision of the supporting material inside, and when fine unevenness occurs on the upper surface of the flooring material due to the difference in the amount of heat shrinkage, Also, by providing the cushion layer, it is possible to suppress the deterioration of the stepping comfort due to the unevenness of the upper surface of the floor material.

A second aspect of the invention is the floor structure of the bathroom washing space according to the first aspect, wherein the thickness of the cushion layer is greater than the height difference of the unevenness formed on the upper surface of the floor member.

According to this bathroom wash area floor structure, by making the thickness of the cushion layer larger than the height difference of the unevenness formed on the upper surface of the flooring material, the deterioration of the stepping comfort due to the unevenness on the upper surface of the flooring material is further reduced. can be suppressed.

In a third invention based on the first or second invention, the floor main body has a drainage port, and has a drainage gradient inclined downward toward the drainage port on the surface, and the upper surface height of the cushion layer is The height of the floor and the height of the upper surface of the support member are lowered along the slope of the drainage of the floor body.

According to this bathroom wash area floor structure, by lowering the upper surface height of the cushion layer and the upper surface height of the support material along the drainage slope of the floor body, the deterioration of the stepping comfort due to the unevenness of the upper surface of the floor surface material is reduced. can be suppressed more.

In a fourth aspect based on the third aspect, a plurality of the support members are provided, and a difference in distance from the upper surface of the plurality of support members to the upper surface of the floor member is smaller than the thickness of the cushion layer. It is a bathroom washing place floor structure characterized by

According to this bathroom wash area floor structure, by making the difference in distance from the upper surface of the plurality of support members to the upper surface of the floor material smaller than the thickness of the cushion layer, the unevenness of the upper surface of the floor material improves the stepping comfort. Aggravation can be further suppressed.

According to a fifth aspect, in the fourth aspect, the difference in distance from the top surface of the plurality of support members to the top surface of the floor material is substantially the same for each of the plurality of support members. This is the bathroom floor structure.

According to this bathroom washroom floor structure, by making the difference in distance from the upper surface of the plurality of support members to the upper surface of the floor surface material approximately the same for each of the plurality of support members, the unevenness of the upper surface of the floor surface material Deterioration of stepping comfort can be further suppressed.

According to the present invention, even when the support material is provided inside the flooring material made of thermoplastic foam resin to suppress the downward sinking of the flooring material, the unevenness of the upper surface of the flooring material provides a comfortable stepping feeling. It is possible to provide a floor structure for a bathroom washing area that can suppress the deterioration of .

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. It is a bottom view showing typically the modification of the washing place floor structure of the bathroom unit which concerns on 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 . For example, at least the upper surface of the support member 50 is arranged inside the floor member 11 . The support member 50 is provided inside the floor body 15, 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 upper ends of the plurality of first horizontal support members 51a to 51g are located above the lower end 11a of the floor panel 11. As shown in FIG. The lower ends of the plurality of first horizontal support members 51a to 51f are substantially flush with the lower end 11a of the floor panel 11. As shown in FIG. 4, when the floor member 11 is placed on the frame body 30, the first horizontal support members 51a to 51f are also placed on the frame body 30. As shown in FIG.

Here, "substantially flush" means, for example, a state in which the difference in height between the lower end of the first horizontal support member and the lower end 11a of the floor member 11 is ±3 mm or less. The lower end of the first horizontal support member may be positioned above the lower end 11a of the floor member 11, like the first horizontal support member 51g. Conversely, the lower end of the first horizontal support member may be positioned below the lower end 11 a of the floor panel 11 .

Similarly, the upper ends of the second horizontal support members 52a and 52b are located above the lower end 11a of the floor member 11. As shown in FIG. The lower ends of the second lateral support members 52a and 52b are located above the lower end 11a of the floor member 11, for example. The lower ends of the second lateral support members 52a and 52b may be substantially flush with the lower end 11a of the floor panel 11, or may be positioned below the lower end 11a.

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.

As shown in FIGS. 3 and 4, the washing 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.

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 upper surface 11b of the floor member 11 is formed with unevenness. The thickness TH<b>1 of the cushion layer 12 is greater than the height difference DE<b>1 of the unevenness formed on the upper surface 11 b of the floor material 11 .

The thickness TH1 of the cushion layer 12 is, for example, the thickness of the thinnest portion of the cushion layer 12 . The thickness TH1 of the cushion layer 12 is, for example, the thinnest in the portion located above the support member 50 . The thickness TH1 of the cushion layer 12 is, in other words, the thickness of the portion of the cushion layer 12 located above the support member 50 .

The height difference DE1 of the unevenness formed on the upper surface 11b of the flooring material 11 is, for example, the lowest position of the recessed portion and the highest position of the raised portion in the recessed portion and the convex portion adjacent to each other among the unevenness of the upper surface 11b. is the vertical height difference between The convex portion is, for example, a portion of the upper surface 11b located above the support member 50 . The recess is, for example, a portion located between two support members 50 on the upper surface 11b.

6(a) and 6(b) are cross-sectional views schematically showing floor materials.
6(a) and 6(b) schematically represent the cross section of substantially the same portion as in 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 upper surface 11b of the flooring material 11 is 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. 6(b), when the floor material 11 cools, the upper surface 11b may have fine irregularities. 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 thickness Tf1 of the floor material 11 itself in the portion where the support material 50 is present is thinner than the thickness Tf2 of the floor material 11 itself in the portion where the support material 50 is absent. The amount of heat shrinkage of the floor material 11 increases as the thickness increases. That is, the applicant found that the upper surface 11b of the flooring material 11 is finely uneven due to the difference in the amount of heat shrinkage caused by the difference in the thickness of the flooring material 11 itself. The unevenness of the upper surface 11b of the floor material 11 affects the stepping comfort.

On the other hand, in the washing space floor 10 (bathroom washing space floor structure) according to the present embodiment, a cushion layer 12 is provided between the floor surface material 11 and the surface material 13 . Since the support material 50 is provided inside, the thickness of the flooring material 11 itself is different, and even if fine irregularities are generated on the upper surface 11b of the flooring material 11 due to the difference in the amount of heat shrinkage, the cushion layer 12 can be maintained. By providing the , it is possible to suppress the deterioration of the stepping comfort due to the unevenness of the upper surface 11 b of the floor material 11 .

For example, as shown in FIG. 5, by providing the cushion layer 12, the unevenness of the upper surface 11b of the floor material 11 is transferred to the surface 15a (surface of the surface material 13) of the floor body 15 (washing floor 10). can be suppressed. By providing the cushion layer 12, it is possible to prevent the surface 15a of the floor body 15 from becoming uneven. As a result, for example, it is possible to prevent the appearance of the floor 10 from deteriorating due to unevenness of the surface 15 a of the floor body 15 .

In addition, in the floor 10 of the washing area, the thickness TH1 of the cushion layer 12 is made larger than the height difference DE1 of the unevenness formed on the upper surface 11b of the floor surface material 11 . As a result, the unevenness of the upper surface 11b can be appropriately cushioned, and the deterioration of the stepping comfort due to the unevenness of the upper surface 11b of the floor member 11 can be further suppressed.

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.
It should be noted that the same reference numerals are given to the parts that are substantially the same as those of the above-described embodiment in terms of function and configuration, and detailed description thereof will be omitted.
As shown in FIG. 7, in the floor 10a of the washing area, the lower ends of the support members 50 (the first horizontal support members 51a, 51c, 51e, 51f, and 51g) are located above the lower ends 11a of the floor members 11. As shown in FIG. Further, a part of the floor surface material 11 extends below the support material 50 in the washing place floor 10a. In other words, the support material 50 is embedded in the floor surface material 11 in the washing place floor 10a. As a result, in the washing space floor 10a, a portion of the floor surface member 11 extending below the support member 50 functions as a cushion portion 11c.

In this manner, a part of the floor member 11 may be used as the cushion portion 11c without providing the cushion portion as a separate member. Also in this case, it is possible to suppress the occurrence of abnormal noise and damage, as in the case where the separate cushion portion 54 is provided.

As shown in FIG. 7, the floor body 15 has a surface 15a with a drainage slope that slopes downward toward the drainage port. The height of the upper surface 12a of the cushion layer 12 decreases along the drainage gradient of the floor body 15. - 特許庁In other words, the upper surface 12a of the cushion layer 12 has a drainage slope that slopes downward toward the drainage port.

The upper surface 12a of the cushion layer 12 is substantially parallel to the surface 15a of the floor body 15, for example. The state in which the upper surface 12a of the cushion layer 12 and the surface 15a of the floor body 15 are substantially parallel is, for example, a difference between the maximum and minimum vertical distances between the upper surface 12a and the surface 15a of 3 mm or less. is in a state of

The top surface height (upper end position) of the plurality of first horizontal support members 51a to 51f (support member 50) decreases along the drainage gradient of the surface 15a of the floor body 15. As shown in FIG. The difference in the height direction distance DT from the upper surfaces of the plurality of first horizontal support members 51a to 51f to the upper surface 11b of the floor surface material 11 is smaller than the thickness TH1 of the cushion layer 12, for example. The distance DT in the height direction from the upper surface of the plurality of first horizontal support members 51a to 51f to the upper surface 11b of the floor member 11 is, for example, substantially the same for each of the plurality of first horizontal support members 51a to 51f. .

Here, the state in which the distances DT of the respective first lateral support members 51a to 51f are substantially the same means, for example, that the deviation of the distances DT of the respective first lateral support members 51a to 51f is ±20% of the average value of the distances DT. is within Alternatively, the difference between the maximum value and the minimum value of the distance DT of each of the first horizontal support members 51a to 51f is 10 mm or less. The distance DT may change, for example, depending on the drainage slope of the surface 15a of the floor body 15, the range of uneven processing provided on the surface 15a, and the like.

The upper surface heights of the plurality of second lateral support members 52a and 52b change along the drainage slope of the surface 15a of the floor body 15, for example. The distance in the height direction from the upper surfaces of the plurality of second horizontal support members 52a and 52b to the upper surface 11b of the floor member 11 is, for example, the plurality of first horizontal support members 51a to 51f and the plurality of second horizontal support members 52a. , 52b are substantially the same.

For example, when the upper ends of the plurality of second horizontal support members 52a, 52b are positioned below the upper ends of the plurality of first horizontal support members 51a to 51f, the plurality of second horizontal support members 52a, 52b It is considered that there is a low possibility of affecting the stepping comfort of the floor 10 of the washing area. Therefore, in such a case, it is not necessary to change the upper surface height of the plurality of second horizontal support members 52a, 52b along the drainage slope of the surface 15a of the floor body 15.

Thus, in the washing space floor 10 a , the height of the upper surface 12 a of the cushion layer 12 and the height of the upper surface of the support member 50 are lowered along the drainage gradient of the floor body 15 . As a result, it is possible to suppress the occurrence of a difference in stepping comfort due to the drainage slope, and further suppress the deterioration of the stepping comfort due to the unevenness of the upper surface 11b of the floor material 11 .

Further, in the washing space floor 10a, the difference in the distance DT from the upper surfaces of the plurality of support members 50 to the upper surface 11b of the floor surface material 11 is smaller than the thickness TH1 of the cushion layer 12. As shown in FIG. As a result, it is possible to suppress the difference in tread comfort caused by the difference in distance DT, and further suppress the deterioration of tread comfort due to unevenness of the upper surface 11b of the floor material 11 . By making the distances DT in the height direction from the upper surfaces of the plurality of supporting members 50 to the upper surface 11b of the flooring member 11 approximately the same for each of the plurality of supporting members 50, the upper surface 11b of the flooring member 11 is Deterioration of stepping comfort due to unevenness can be suppressed more reliably.

FIG. 8 is a bottom view schematically showing a modification of the floor structure of the washing area of the bathroom unit according to the embodiment.
As shown in FIG. 8 , in the floor 10b of the washing area, the support member 50 has a plurality of first lateral support members 51 and a plurality of second lateral support members 52 . The plurality of first horizontal support members 51 extend in the first horizontal direction HD1 and are arranged in the second horizontal direction HD2. The plurality of second horizontal support members 52 extend in the second horizontal direction HD2 and are arranged in the first horizontal direction HD1. A plurality of first lateral supports 51 are connected to a plurality of second lateral supports 52 on the floor 10b of the washing area. In the washing space floor 10b, the support member 50 is configured as one grid-like member. Thus, the support member 50 may be composed of one member, or may be composed of a plurality of independent members as described with reference to FIG. 3 and the like.

In addition, in the washing space floor 10b, the interval PT11 between the plurality of first horizontal support members 51 is 10 cm or less in top view. In other words, when viewed from the top, the size of the gap between each of the plurality of first horizontal support members 51 is 10 cm or less.

Thus, in the support member 50, the interval PT11 may be 10 cm or less. As a result, sinking of the floor material 11 can be more reliably suppressed while improving workability. Moreover, when the interval PT11 is set to 10 cm or less in this way, the lattice portion 32 of the frame body 30 may be omitted. As a result, it is possible to further improve workability while suppressing sinking of the floor material 11 . It should be noted that the interval PT11 is more preferably 7 cm or less in view of the size of children's feet.

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, 10a, 10b washing area floor 11 floor surface material 11a lower end 11b upper surface 11c cushion part 12 cushion layer 13 surface material 15 floor main body 15a surface 21 opening 22 opening 23 opening 30 frame body 31 outer frame 31a to 31d frame 32 grid portion 33 support leg 34 opening 41 first extension 42 second extension 50 support member 51, 51a ~51g First horizontal support member 52, 52a, 52b Second horizontal support member 54 Cushion part 60 Bathtub 61 Support leg 62 Drain pipe 63 Lid 65a Small panel 65b Small panel 67 Bath apron 71a ~71f wall panel, 100 installation surface

Claims (5)

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 inside the floor body, having a rigidity higher than that of the floor surface material, and suppressing sinking of the floor surface material;
with
The upper end of the support member is positioned above the lower end of the floor material,
The floor body has a cushion layer provided between the floor material and the surface material,
The floor structure of the bathroom washing place, wherein the hardness of the cushion layer is lower than the hardness of the floor surface material.
2. The floor structure of the bathroom wash area according to claim 1, wherein the thickness of said cushion layer is larger than the height difference of the unevenness formed on the upper surface of said floor member. The floor body has a drain outlet and a surface with a drainage slope that slopes downward toward the drain outlet,
3. The bathroom washing area floor structure according to claim 1, wherein the height of the top surface of the cushion layer and the height of the top surface of the support member decrease along the slope of the drainage of the floor body. A plurality of the support members are provided,
4. The bathroom wash area floor structure according to claim 3, wherein a difference in distance from the upper surfaces of said plurality of support members to the upper surface of said floor surface material is smaller than the thickness of said cushion layer. 5. The bathroom washing area floor structure according to claim 4, wherein the difference in distance from the upper surface of said plurality of support members to the upper surface of said floor member is substantially the same for each of said plurality of support members.

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