JP2020101000A - Bathroom wash place floor structure - Google Patents

Abstract

To provide a bathroom wash place floor structure enabling a thermoplastic foam resin floor surface material to be stably fitted even when the floor surface material is inhibited from sinking downward by providing a support material inside the floor surface material.SOLUTION: A bathroom wash place floor structure comprises: a floor body including a floor surface material formed from thermoplastic resin foam and a surface material provided on the floor surface material to form a surface of a wash place floor; a frame body that includes an outer frame, a lattice part partitioning the inside of the outer frame in a lattice shape, and a support leg having an adjustable height and supports the floor body from below; and a support material that is provided in the floor surface material, has rigidity higher than that of the floor surface material, and inhibits the floor surface material from sinking. The floor surface material holds the support material in a state in which at least part of the support material is exposed downward. The support material includes an exposure part exposed downward. At least part of the frame body is disposed below the exposure part of the support material to support the floor surface material from below via the exposure part.SELECTED DRAWING: Figure 5

Description

The present invention relates to a bathroom wash floor structure.

It is known to use a foam floor as the floor surface material of the bathroom washroom floor in order to secure heat insulation and softness in footsteps. On the other hand, if the floor material is a foam floor, its softness makes it easier for a person to sink downward when it is placed on it. Therefore, there is a technique for suppressing the sinking of the floor surface material by disposing the deck plate on the base supporting the base material. However, with such a configuration, the presence of the deck plate may deteriorate the visibility of the gantry from above and the workability of construction. Therefore, the applicant has devised a technique of arranging a supporting material inside the foamed bed to suppress the sinking of the foamed bed even without the deck plate.

For example, the flooring material can be molded with the support material disposed inside by foam-molding the foaming agent with the support material disposed in the mold. However, such integral molding may cause fine irregularities on the lower surface of the floor material. Such unevenness on the lower surface of the floor surface material makes it difficult to stably attach the floor surface material to the frame when the floor surface material is placed on the frame. For example, there is a risk of rattling of the floor material.

JP, 2005-068018, A

The present invention has been made based on the recognition of such a problem, and also in the case of suppressing the subsidence of the floor surface material by providing a support material inside the floor surface material made of thermoplastic foaming resin. , It is intended to provide a bathroom washing floor structure to which floor materials can be stably attached.

A first invention is a floor main body having a floor surface material formed of a thermoplastic foamed resin and a surface material provided on the floor surface material to form a surface of a washing floor, an outer frame, and A frame body that has a lattice part that partitions the inside of the outer frame into a lattice shape, and support legs whose height can be adjusted, and that supports the floor body from below; A support material having a higher rigidity than that of the floor surface material, which suppresses the sinking of the floor surface material, wherein the floor surface material includes the support material in a state in which at least a part of the support material is exposed downward. The supporting member has an exposed portion that is held downward, and at least a part of the frame body is disposed below the exposed portion of the supporting member, and the floor surface material is provided via the exposed portion. It is a floor structure of a bathroom washing room, which is characterized by supporting the above from below.

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

In a second aspect based on the first aspect, at least the upper surface of the support member is disposed inside the floor surface material, and the exposed portion is disposed above a lower end of the floor surface material. It has a bathroom wash floor structure.

From the viewpoints of heat insulation and strength, the floor covering needs to have a predetermined thickness. For example, when the support material is provided on the lower surface of the plate-like floor surface material having a required thickness, the height of the wash floor may unnecessarily increase by the height of the support material. On the other hand, while the support material is provided on the lower surface of the plate-like floor surface material, if the thickness of the floor surface material is reduced by the height of the support material in order to suppress the height of the washing floor, heat insulation of the floor surface material will be achieved. There is concern about deterioration of the properties and strength.

According to this bathroom washing floor structure, at least the upper surface of the support material is arranged inside the floor surface material, and the exposed portion is arranged above the lower end of the floor surface material. As a result, the floor surface material can be made to have an appropriate thickness in a portion where there is no support material, while suppressing the height of the wash floor to be unnecessarily high. Can be secured.

ADVANTAGE OF THE INVENTION According to this invention, even when it suppresses the sinking of the floor surface material to the lower part by providing a support material in the floor material made of thermoplastic foaming resin, the bathroom which can be stably attached to the floor material. A wash floor structure can be provided.

It is a perspective view which represents typically the bathroom unit which concerns on embodiment. It is a perspective view which represents typically the washroom floor structure of the bathroom unit which concerns on embodiment. It is a bottom view which represents typically the washing floor structure of the bathroom unit which concerns on embodiment. It is a sectional view showing typically the washing place floor structure of the bathroom unit concerning an embodiment. It is a sectional view showing typically the washing place floor structure of the bathroom unit concerning an embodiment. FIG. 6A and FIG. 6B are cross-sectional views schematically showing the floor covering. It is sectional drawing which represents typically the modification of the washing floor structure of the bathroom unit which concerns on embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In the drawings, the same components are designated by the same reference numerals, and detailed description thereof will be appropriately omitted.
FIG. 1 is a perspective view schematically showing a bathroom unit according to the embodiment.
As shown in FIG. 1, the bathroom unit 2 includes the wash floor 10, the bathtub 60, and the wall panels 71a to 71f.

Support legs 61 are provided near the four corners on the back surface of the bottom of the bathtub 60, and the bathtub 60 is installed on the bathroom installation surface (for example, the floor of the building) 100 via the support legs 61. A bolt portion is provided on the front end 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.

The washing floor 10 is installed at the bottom of the space next to the bathtub 60. The surface 15a of the wash floor 10 is waterproof so that water does not leak outside the bathroom. In addition, in this specification, the term "water" includes not only cold water but also heated hot water.

A drainage pipe 62 is provided near the boundary with the bathtub 60 on the back side (lower side) of the wash floor 10. In the washing floor 10, for example, in the vicinity of the boundary with the bathtub 60, a drain port (in FIG. 1, closed by a removable lid 63) communicating with a drain pipe 62 is formed. The portion provided with the drainage port is hollow, and the surface 15a of the wash floor 10 has a drainage slope inclined downward toward the drainage port. A drain port (not shown) provided at the bottom of the bath 60 is also connected to the drain pipe 62.

As shown by a two-dot chain line in FIG. 1, wall panels 71a to 71c are installed on the rim of the bathtub 60. In addition, wall panels 71d to 71f are installed on the periphery of the wash floor 10. A door is attached to the wall panel 71f via a door attachment frame (not shown).

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

Further, a small panel 65b is provided between one end side of the bus apron 67 in the longitudinal direction and the wall panel 71d. In addition, a small panel 65a is provided between the other end side of the bus apron 67 in the longitudinal direction and the wall panel 71f. The small panels 65a and 65b are provided as needed and can be omitted.

FIG. 2 is a perspective view schematically showing the bathroom floor structure of the bathroom unit according to the embodiment.
As shown in FIG. 2, the wash floor 10 includes a floor main body 15 and a frame body 30. The floor main body 15 includes 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 covering 11 of the floor body 15 is placed on the frame body 30 and supported by the frame body 30. The floor surface material 11 is formed in a shallow container shape (bread shape) with its peripheral portion bent upward.

Floor material 11 is formed of thermoplastic foam resin. Examples of the thermoplastic foam resin include foam polypropylene, foam polystyrene, foam polyethylene, foam polyurethane, and the like. In the present embodiment, expanded polypropylene is used as an example.

The floor material 11 has an opening 21 for a drainage port. The portion provided with the opening 21 is formed in a concave shape. Further, on the surface of the floor surface material 11, a drainage slope that is inclined downward toward the opening 21 is formed.

The surface material 13 is provided on the floor surface material 11 via the cushion layer 12. 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 soft feeling of using the floor surface. As a 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 specifications of 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. The hardness of the cushion layer 12 is lower than the hardness of the surface material 13. In other words, the impact resilience of the cushion layer 12 is lower than the impact resilience of the floor material 11 and the impact resilience of the surface material 13. Here, the impact resilience can be determined based on, for example, the “impact resilience” measurement method and measurement conditions defined in JIS K 6400-3 of the Japanese Industrial Standards. In this method, a steel ball is dropped on a test piece and the height at which it bounces is measured. For each of the three test pieces, the median of the measured values of the bounced height is obtained, and the median of all of them is defined as "rebound resilience". The impact resilience of the cushion layer 12 obtained by the above method is made lower than the impact resilience of the floor surface material 11 and the impact resilience of the surface material 13. This allows the cushion layer 12 to have high cushioning properties. Then, in the floor main body 15, it is possible to obtain good pedaling comfort.

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

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

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 patterned pattern in order to improve the design and drainage of the surface 15a of the floor body 15.

An opening 23 for a drainage port is formed in the surface material 13. Further, on the surface of the surface material 13, a drainage slope that is inclined downward toward the opening 23 is formed. Due to the drainage gradient of the floor surface 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 lattice 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 materials of the outer frame 31, the lattice portion 32, and the support legs 33 are not limited to metals. The material of the outer frame 31, the lattice portion 32, and the support legs 33 may be a hard resin material such as FRP (Fiber-Reinforced Plastics). The material of the outer frame 31, the lattice 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 to 31d. The four frames 31 a to 31 d are combined in a rectangular shape to form the outer shape (outline) of the outer frame 31. The frame 31a and the frame 31b extend in parallel, and the frame 31c and the frame 31d extend in parallel. The area of the rectangular area formed by the four frames 31a to 31d is substantially the same as the area of the rectangular area formed by the floor body 15.

The length of the frames 31a and 31b is longer than the length of the frames 31c and 31d. The outer frame 31 has, for example, a rectangular shape in a top view. The frames 31a and 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 HD1 is, for example, the longitudinal direction of the rectangular outer frame 31, and the second horizontal direction HD2 is, for example, the lateral direction of the rectangular outer frame 31. In other words, the first horizontal direction HD1 is a direction orthogonal to the direction in which the washing floor 10 and the bathtub 60 are arranged, and the second horizontal direction HD2 is in other words the direction in which the washing floor 10 and the bathtub 60 are arranged. It is a parallel direction.

The lattice portion 32 partitions the inside of the outer frame 31 into a lattice shape. The lattice part 32 suppresses the bending of the floor main body 15 by supporting, for example, a portion inside the outer frame 31 of the floor main body 15. In this way, by providing the lattice portion 32, the floor body 15 can be more appropriately supported by the frame body 30.

The lattice portion 32 has, for example, a plurality of first extending portions 41 and a plurality of second extending portions 42. Each of the first extending portions 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 arranged in the first horizontal direction HD1. As a result, the grid portion 32 partitions the inside of the outer frame 31 so that the plurality of rectangular gaps are arranged in the first horizontal direction HD1 and the second horizontal direction HD2.

Further, a part 41a of the plurality of first extending portions 41 is provided between the frame 31c and the frame 31d. Another part 41b of the plurality of first extending portions 41 is provided between the second extending portions 42. In this way, the extending portion may extend entirely between the frames of the outer frame 31, or may extend only partly between the frames of the outer frame 31.

However, the configuration of the lattice section 32 is not limited to the above. The lattice portion 32 may have, for example, a configuration including only the plurality of first extending portions 41 or a configuration including only the plurality of second extending portions 42. Further, 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 lattice portion 32 may have any configuration capable of partitioning the inside of the outer frame 31 into a lattice shape and appropriately supporting the floor main 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 from the lower surface of the lattice portion 32 (on the side of the installation surface). 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 levelness of the floor main body 15 supported on the frame body 30 are adjusted.

Further, the grid portion 32 is provided with a plate in which an opening 34 for a drainage port is formed. The frame body 30, the floor material 11, the cushion layer 12, and the surface material 13 are overlapped with each other by aligning the positions of the openings 21, 22, 23, and 34. A drainage pit is provided inside each of the openings 21, 22, 23, 34. The drainage pit is made of resin and is impermeable. 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 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 bathroom floor structure of the bathroom unit according to the embodiment.
FIG. 4 is a cross-sectional view schematically showing the bathroom 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 wash floor 10 further includes a support material 50. The support material 50 is provided on the floor material 11. For example, at least the upper surface of the support member 50 is arranged inside the floor surface member 11. The support material 50 is provided inside the floor surface material 11, for example. The support material 50 is embedded in the lower part of the floor surface material 11, for example. As a result, the support material 50 is placed on the frame body 30 together with the floor surface material 11.

The support material 50 has higher rigidity than the floor material 11. For the support material 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 the 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 addition, in the present invention, the support material 50 is “directly fixed” to the frame body 30 means that the support material 50 is screwed and fixed to the frame body 30 or is adhered and fixed by an adhesive or the like. And so on. On the other hand, in the present invention, the support material 50 being “not directly fixed” to the frame body 30 means that the support material 50 is “only indirectly fixed” to the frame body 30. Is also included in the definition. For example, the floor body 15 to which the support member 50 is fixed and the floor body 15 fitted and fixed to the frame body 30 are also included in the definition.

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

However, when the bathroom unit 2 is assembled, the support member 50 is, for example, a fastening flange (a connecting member between the drain pit and the drain pipe 62) provided at the drain of the floor surface member 11 and the floor main body 15. There is a possibility that it is indirectly fixed to the frame body 30 via. The support material 50 is removable without being fixed to the frame body 30 at least at the stage of construction of the frame body 30 and the floor material 11.

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

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

The first lateral support members 51a to 51f have, for example, a rectangular pipe shape (square tube shape) having a substantially rectangular cross section. On the other hand, the first lateral support member 51g has, for example, a round pipe shape (cylindrical shape) having a substantially circular cross section. The second lateral support members 52a and 52b are, for example, round pipe shapes 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 main body 15 has a drainage gradient, a square pipe-shaped horizontal support member is provided near the drainage port (the lowest point of the drainage gradient) and in the thin portion of the floor body 15. A round pipe-shaped lateral support member is used in the thick portion of the floor body 15 near the outer periphery. For example, a square pipe is used as the horizontal support member closest to the drainage port among the plurality of horizontal support members, and a round pipe is used as the horizontal support member farthest from the drainage port among the plurality of horizontal support members. Thereby, the production cost of the wash floor 10 can be suppressed while appropriately suppressing the sinking of the floor surface material 11.

The plurality of first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b are arranged at positions where at least a part thereof does not overlap the outer frame 31 and the lattice portion 32 of the frame body 30 in a top view.

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 to 51g. In a top view, the interval 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, in a top view, the size of the gaps 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 be accommodated in 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 and 52b. In a top view, the interval PT2 between the plurality of second extending portions 42 and the plurality of second lateral support members 52a and 52b is 10 cm or less. More specifically, the intervals PT1 and PT2 are intervals between the extending portion and the lateral support member adjacent to the extending portion.

A plurality of first lateral support members 51d to 51f are arranged between some of the plurality of first extending portions 41. Thereby, the interval PT3 of a part of the plurality of first extending portions 41 can be set to 14 cm or more. The interval PT4 of a part of the plurality of second extending portions 42 is 14 cm or more.

FIG. 5 is a cross-sectional view schematically showing the bathroom floor structure of the bathroom unit according to the embodiment.
FIG. 5 schematically shows a cross section taken along line B1-B2 of FIG.
As shown in FIG. 5, the floor surface material 11 holds the support material 50 in a state where at least a part of the support material 50 is exposed downward.

The floor surface material 11 has, for example, an extending portion 11d extending below a part of the support material 50. In other words, the extending portion 11d is a portion that covers a part of the lower portion of the supporting member 50 and holds the supporting member 50. The extending portion 11d can be formed, for example, by integrally molding the floor surface material 11 with the support material 50 with the support material 50 embedded therein. Thereby, the support material 50 can be held in a state where at least a part of the support material 50 is exposed downward. However, the method of holding the support material 50 is not limited to the above, and any method capable of holding the support material 50 in a state where at least a part of the support material 50 is 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 covering 11. The exposed portion 50p is arranged above the lower end 11a of the floor surface member 11. The exposed portion 50p is, for example, a portion of the support member 50 where the floor surface material 11 which is a thermoplastic foam resin is not provided below.

At least a part of the frame body 30 is arranged below the exposed portion 50p of the support member 50, and supports the floor surface 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 located below a 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 each of the plurality of first lateral support members 51a to 51g and the second lateral support members 52a and 52b through the plurality of exposed portions 50p, so that the plurality of first lateral support members 51a to 51g. The floor surface member 11 is supported from below via the second horizontal support members 52a and 52b. Thus, the support member 50 has, for example, a plurality of exposed portions 50p, and supports the floor surface member 11 from below via the plurality of exposed portions 50p.

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

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, the plurality of exposed portions 50p may not necessarily be provided. The number of exposed portions 50p may be one.

As shown in FIGS. 3 to 5, the wash floor 10 further includes a cushion portion 54. The cushion portion 54 is provided between the support member 50 and the frame body 30. The cushion portion 54 has lower rigidity than the support material 50 and the frame body 30. The cushion part 54 has elasticity, for example. For the cushion portion 54, for example, the same thermoplastic foam resin as the floor surface material 11 is used. The cushion portion 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 may be any material having rigidity (elasticity) lower than that of the support material 50 and the frame body 30.

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

FIG. 6A and FIG. 6B are cross-sectional views schematically showing the floor covering.
FIG. 6A and FIG. 6B schematically show a cross section of a reference example in which the support material 50 is completely embedded in the floor surface material 11.

FIG. 6A schematically shows a state during or immediately after formation of the floor covering 11. The floor material 11 is formed by, for example, applying heat to the foaming agent to foam the foaming agent in the mold. For this reason, the lower surface 11b and the upper surface 11c of the floor surface material 11 are formed into a flat flat surface having no unevenness according to the shape of the mold during the formation of the floor surface material 11 or immediately after the formation thereof. In other words, the state during or immediately after the formation of the floor covering 11 is a state in which the floor covering 11 has heat.

FIG. 6B schematically illustrates a state in which the floor covering 11 is cooled to room temperature after the floor covering 11 is formed. As shown in FIG. 6B, when the floor covering 11 cools, fine unevenness may occur on the lower surface 11b and the upper surface 11c. As a result of earnest studies, the applicant has found that one cause of the unevenness is the difference in the amount of heat shrinkage.

When the support material 50 is integrally molded inside the floor surface material 11, the thickness of the floor surface material 11 itself changes between the portion with the support material 50 and the portion without the support material 50. The thicknesses Tf1 and Tf2 of the floor surface material 11 itself in the portion where the support material 50 is provided are thinner than the thickness Tf3 of the floor surface material 11 itself in the portion where the support material 50 is not provided. The amount of heat shrinkage of the floor surface material 11 increases with the thickness. That is, the applicant has found that due to the difference in the amount of heat shrinkage due to the difference in the thickness of the floor surface material 11 itself, minute unevenness is generated on the lower surface 11b and the upper surface 11c of the floor material 11.

Such unevenness of the lower surface 11b of the floor surface material 11 makes it difficult to stably attach the floor surface material 11 to the frame body 30 when the floor surface material 11 is placed on the frame body 30 (frame). I will end up. For example, there is a risk of rattling of the floor material 11.

On the other hand, in the wash floor 10 (bathroom wash floor structure) according to the present embodiment, the floor surface material 11 holds and supports the support material 50 with at least a part of the support material 50 exposed downward. The material 50 has an exposed portion 50p exposed downward, and at least a part of the frame body 30 is disposed below the exposed portion 50p of the support material 50, and the floor surface material 11 is exposed from below via the exposed portion 50p. To support. As a result, even if the lower surface 11b of the floor surface material 11 has irregularities, the floor surface material 11 can be stably attached to the frame body 30. For example, it is possible to prevent rattling of the floor surface material 11 due to unevenness of the lower surface 11b of the floor surface material 11.

Further, in the washing floor 10, the support material 50 is arranged at least on the upper surface inside the floor surface material 11, and the exposed portion 50p is arranged above the lower end 11a of the floor surface material 11. From the viewpoint of heat insulation and strength, the floor surface material 11 needs to have a predetermined thickness. For example, when the support material 50 is provided on the lower surface 11b of the plate-like floor surface material 11 having a required thickness, the height of the washing floor 10 is unnecessarily increased by the height of the support material 50. The possibility arises. On the other hand, when the support material 50 is provided on the lower surface 11b of the plate-shaped floor surface material 11, the thickness of the floor surface material 11 is reduced by the height of the support material 50 in order to suppress the height of the washing floor 10. However, there is a concern that the heat insulating property and strength of the floor surface material 11 may deteriorate.

In the washing floor 10, by arranging the exposed portion 50p above the lower end 11a of the floor surface material 11, it is possible to prevent the height of the washing floor 10 from unnecessarily increasing, and to prevent the floor in a portion without the support material 50. The face material 11 can be made to have an appropriate thickness, and the floor surface material 11 can ensure appropriate heat insulation and strength.

Further, in the washing floor 10, it is provided below the surface 15 a of the floor main body 15 and is provided on the frame body 30 without being directly fixed to the frame body 30 and is more than the floor surface material 11. Since the support material 50 having high rigidity and suppressing the sinking of the floor surface material 11 is provided, even when the floor surface material 11 made of the thermoplastic resin is arranged on the frame body 30, a person can wash the floor. It is possible to prevent the floor surface material 11 from largely sinking due to the load when it is placed on the floor 10. Further, since it is not necessary to provide a lattice or the like having a narrow interval on the frame body 30, it is possible to ensure the visibility of the lower side of the frame body 30 and to easily adjust the support legs 33. Therefore, it is possible to improve the workability while solving the problem that the floor surface material 11 largely sinks and the walking comfort becomes poor, and the problem that the drainage gradient required for the wash floor 10 cannot be appropriately maintained.

Further, in the washing floor 10, the floor surface material 11 is largely sunk by the plurality of first horizontal support members 51a to 51g having a thickness in the height direction and the plurality of second horizontal support members 52a and 52b. It can be suppressed more reliably. Furthermore, since 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 surface member 11, the first horizontal support members 51a to 51g and the second horizontal support members 51a to 51g. It is possible to suppress the occurrence of a large step at the bottom of the floor surface material 11 between the positions where the lateral support members 52a and 52b are arranged and the positions where the horizontal support members 52a and 52b are not arranged. Can be properly maintained.

Further, in the washing floor 10, the first horizontal support members 51a to 51g and the second horizontal support members 52a and 52b are located at positions where at least a part thereof does not overlap with the outer frame 31 and the lattice portion 32 of the frame body 30 in a top view. By being arranged, even if the number of horizontal support members is small, it is possible to more reliably suppress the floor surface member 11 from sinking.

Further, in the washing floor 10, in the top view, the interval 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, and the plurality of second extending portions 42 and An interval PT2 between the plurality of second lateral support members 52a and 52b is 10 cm or less. Thereby, the plurality of first extending portions 41, the second extending portions 42, the first lateral supporting members 51a to 51g, and the second lateral supporting members 52a and 52b firmly suppress the sinking of the floor covering 11. can do.

The intervals PT1 and PT2 are more preferably 7 cm or less. By setting the intervals PT1 and PT2 to be 7 cm or less, for example, the intervals PT1 and PT2 can be made smaller than the size of the foot of a person aged two or more who can walk. Therefore, even if a person stands on the wash floor 10 and receives a load, the load from the sole of the foot can be received by the frame body 30 and the support member 50, and it is possible to prevent the load from being greatly bent. Therefore, it is possible to provide the wash floor 10 with a more stable feeling. Thus, the intervals PT1 and PT2 are more preferably 7 cm or less in consideration of the size of the foot of the child.

In the washing 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 part of the floor covering 11 is filled between the inserted first lateral support members 51a to 51g and the second lateral support members 52a and 52b. In this case, it is possible to suppress the sinking of the floor surface member 11 and the expansion in the width direction by the plurality of lateral support members that are sandwiched. Therefore, for example, even if the intervals PT1 and PT2 are set in the range of 7 cm to 10 cm, it is possible that the floor covering 11 will largely sink due to the load of a child with a relatively light weight of about 7 cm. It can be suppressed more reliably.

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

In addition, the washing floor 10 is further provided with the cushion portion 54, so that when the support member 50 is loaded, an abnormal noise is generated by coming into contact with the metal frame body 30, and the frame body 30 and the support body 50 are supported. It is possible to prevent the material 50 from being damaged.

FIG. 7 is a cross-sectional view schematically showing a modified example of the bathroom floor structure of the bathroom unit according to the embodiment.
FIG. 7 schematically shows a cross section that is substantially the same as FIG. It should be noted that parts substantially the same in function and configuration as those of the above-described embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 7, in this example, the support material 50 is attached to the lower surface 11 b of the floor surface material 11. 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. In this way, the floor surface material 11 may hold the support material 50 in a state in which substantially the entire lower surface of the support material 50 is exposed downward. Such a configuration can be realized, for example, by bonding the support material 50 to the lower surface 11b of the floor surface material 11. 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 surface member 11. Thus, the exposed portion 50p does not necessarily have to be arranged above the lower end 11a of the floor surface member 11. However, as described above, by disposing the exposed portion 50p above the lower end 11a of the floor surface material 11, it is appropriate for the floor surface material 11 while suppressing the height of the wash floor 10 from unnecessarily increasing. It is possible to secure good heat insulation and strength.

In the above embodiment, the support member 50 includes a plurality of independent first lateral support members 51a to 51g and a plurality of second lateral support members 52a and 52b. The support material 50 is not limited to this, and may be composed of one continuous member.

Although some embodiments of the present invention have been described, these embodiments are presented as examples 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 changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are also included in the invention described in the claims and an equivalent range thereof.

2 bathroom unit, 10 washing floor, 11 floor surface 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 to 31d frame, 32 lattice part, 33 support leg, 34 opening part, 41 first extension part, 42 second extension part, 50 support material, 51a to 51g first lateral support material , 52a, 52b 2nd horizontal support material, 54 cushion part, 60 bathtub, 61 support leg, 62 drainage pipe, 63 lid, 65a small panel, 65b small panel, 67 bath apron, 71a-71f wall panel, 100 installation surface

Claims (2)

A floor main body having a floor surface material formed of a thermoplastic foamed resin, and a surface material provided on the floor surface material and forming a surface of a washing floor,
An outer frame, a frame portion that partitions the inner side of the outer frame into a lattice shape, and support legs whose height is adjustable, and a frame body that supports the floor main body from below,
A support material provided on the floor surface material, having a higher rigidity than the floor surface material, and suppressing the sinking of the floor surface material,
Equipped with
The floor surface material holds the support material in a state in which at least a part of the support material is exposed downward,
The support member has an exposed portion exposed downward,
At least a part of the frame body is disposed below the exposed portion of the support member, and supports the floor surface member from below through the exposed portion, the bathroom washing floor structure. The support member has at least an upper surface disposed inside the floor member,
The bathroom washing floor structure according to claim 1, wherein the exposed portion is disposed above a lower end of the floor surface member.

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