Bathroom and wall-ceiling unit

Abstract

To provide a bathroom capable of improving workability in attaching a ceiling which is one object of the present disclosure.SOLUTION: A bathroom 100 according to an aspect of the present disclosure includes a wall panel 91 defining a bathroom space 90, and ceiling panels 11 and 12 disposed on an upper side of the wall panel 91. The ceiling panel 11 is connected to the wall panel 91 by engaging a mounting member 2 fixed to an outer edge of the ceiling panel 11 in advance with the wall panel 91.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to bathroom and wall ceiling units. [Background technology]

[0002] The applicant discloses a bathroom unit with a ceiling in Patent Document 1. A bathroom space is formed inside the bathroom unit as an interior space. The bathroom unit includes a plurality of wall panels arranged on all four sides and a plurality of ceiling panels arranged above the plurality of wall panels. The plurality of wall panels and the plurality of ceiling panels define the interior space. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-100581 A Summary of the Invention [Problem to be solved by the invention]

[0004] The work of connecting the ceiling panel and the wall panel is sometimes performed by a worker leaning out from an inspection hatch into the ceiling space using tools such as an electric screwdriver, but there are also systems that allow the work to be performed from the indoor space when there is not enough work space in the ceiling space. For example, in the bathroom unit described in Patent Document 1, after a sealing member is inserted into the gap between the ceiling panel and the wall panel, the sealing member and the mounting member are fixed to the connecting material using a fastener that is a screw, and then a decorative cover is attached. The work of fixing the mounting member to the connecting material using a fastener from the indoor space in this way requires many work steps, so it can be said that there is room for improvement in terms of workability.

[0005] One object of the present disclosure is to provide a bathroom that can improve the workability when installing a ceiling. [Means for solving the problem]

[0006] In order to solve the above problems, a bathroom according to an embodiment of the present disclosure includes a wall panel that defines a bathroom space, and a ceiling panel that is disposed above the wall panel. The ceiling panel is connected to the wall panel by engaging a mounting member that is fixed to an outer edge of the ceiling panel in advance.

[0007] Another aspect of the present disclosure is a wall-ceiling unit comprising a wall panel defining a predetermined space and a ceiling panel disposed above the wall panel, the ceiling panel being connected to the wall panel by a mounting member previously fixed to an outer edge of the ceiling panel engaging with the wall panel. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a bathroom according to an embodiment. [Diagram 2] FIG. 2 is an exploded perspective view showing a portion of the bathroom of the embodiment. [Diagram 3] 2 is a plan view showing the arrangement of a ceiling panel and mounting members according to the embodiment. FIG. [Figure 4] 11A to 11C are diagrams showing a process of fixing the mounting member to the ceiling panel of the embodiment. [Diagram 5] 1A to 1C are diagrams showing a process of connecting a ceiling panel to a wall panel according to an embodiment. [Figure 6] 4 is a cross-sectional view showing a first connection structure between a ceiling panel and a wall panel in the embodiment. FIG. [Figure 7] FIG. 4 is a cross-sectional view showing a second connection structure between a ceiling panel and a wall panel in the embodiment. [Figure 8] FIG. 2 is a perspective view showing a mounting member according to the embodiment. [Figure 9] FIG. 2 is a front view showing the mounting member of the embodiment. [Figure 10] FIG. 11 is a diagram showing a mounting member of a first modified example. [Figure 11] FIG. 13 is a diagram showing a mounting member of a second modified example. [Figure 12] FIG. 13 is a diagram showing a mounting member of a third modified example. [Figure 13] FIG. 13 is a diagram showing a mounting member of a fourth modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Preferred embodiments will be described below with reference to the drawings. The same or equivalent components, parts, and processes shown in each drawing will be given the same reference numerals, and duplicated descriptions will be omitted as appropriate. In addition, the embodiments are illustrative and do not limit the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

[0010] In each drawing, for the convenience of explanation, some of the components are omitted, enlarged, or reduced as appropriate. The drawings should be viewed according to the orientation of the reference symbols. The structures and shapes referred to in this specification include not only structures and shapes that strictly match the contents referred to, but also structures and shapes that deviate by the amount of errors such as dimensional errors and manufacturing errors. In each drawing, some of the components that are not important for explaining the embodiments are omitted.

[0011] Terms including ordinal numbers such as first and second are used to describe various components. These terms are used only to distinguish one component from another component, and do not limit the configuration of the present disclosure. The following embodiments are provided as examples to help understand the contents of the present disclosure, and do not limit the configuration of the present disclosure.

[0012] [Embodiment] Please refer to Figure 1. As shown in Figure 1, a bathroom 100 of the embodiment is placed inside the framework of a building. A bathroom space 90 is formed inside the bathroom 100 as an indoor space. The bathroom 100 comprises a plurality of wall panels 91 arranged on all four sides, and a plurality of ceiling panels 11, 12 arranged above the plurality of wall panels 91. The plurality of wall panels 91 and the plurality of ceiling panels 11, 12 define the bathroom space 90. The ceiling panels 11, 12 are composed of a first ceiling panel 11 and a second ceiling panel 12 adjacent to the first ceiling panel 11 and having an inspection hatch 18.

[0013] The first ceiling panel 11 and the second ceiling panel 12 are arranged horizontally and connected to each other. In this embodiment, the first ceiling panel 11 does not have an opening through which a person can pass, such as an inspection hatch. The second ceiling panel 12 has an inspection hatch 18, and the inspection hatch 18 is covered with a lid 19.

[0014] Please also refer to Figure 2. As shown in the exploded perspective view of Figure 2, in addition to the aforementioned wall panel 91 and ceiling panels 11 and 12, bathroom 100 also comprises a floor body 30, a base 31, and a mounting member 2. One of the features of bathroom 100 in this embodiment is the mounting structure of ceiling panels 11 and 12, but the surrounding structure will be explained first.

[0015] The base 31 serves to fix the wall panel 91 and the ceiling panels 11, 12 to each other and supports them. The base 31 is disposed on the exterior side of the wall panel 91. The base 31 has four pillars 34 rising from the four corners of the floor body 30 and four connecting members 36 connecting the upper ends of the four pillars 34. In particular, the connecting members 36 are provided across the multiple pillars 34 supporting the wall panel 91, connecting the multiple pillars 34 together.

[0016] The four connecting members 36 are provided so as to present a rectangular shape in a plan view. Each of the four connecting members 36 is an elongated body extending parallel to each side of the rectangle formed by the four connecting members 36. The connecting members 36 of the embodiment are extrusion molded products (integrally molded products) made of a metal such as steel. The connecting members 36 have a vertical width shorter than their horizontal width, and have guide portions 37 that form a strip-shaped guide surface.

[0017] The multiple wall panels 91 are arranged in a horizontal direction. The outer edges of adjacent wall panels 91 are connected to each other by connecting members (not shown). The outer edges of both ends of the wall panels 91 in the arrangement direction are fixed to pillar materials 34 using screws or the like. As shown in Fig. 2, the floor body 30 of the embodiment is a floor pan, and is installed on the floor surface of the building frame.

[0018] The ceiling panels 11 and 12 will be described with reference to FIG. 3. This figure shows the arrangement of the ceiling panels 11 and 12 as viewed from above the ceiling. In this embodiment, the inspection hatch 18 is disposed at a position closer to the edge of the second ceiling panel 12 on the first ceiling panel 11 side than the edge of the second ceiling panel 12 on the opposite side to the first ceiling panel 11. When the work of installing the ceiling panels 11 and 12 is performed while a worker leans his / her upper body from the inspection hatch into the ceiling space, it is easy for the worker to work on the part close to the inspection hatch 18 using tools such as an electric screwdriver. However, it is not easy for the worker to work on the part far from the inspection hatch 18 using tools while leaning his / her upper body from the inspection hatch into the ceiling space, and the workability is low.

[0019] Therefore, in the embodiment, the first ceiling panel 11 is connected to the top of the wall panel 91 by the first connection structure 3 using the mounting member 2 for at least a part of the panel from inside the bathroom space. In particular, the first ceiling panel 11 uses the first connection structure 3 using the mounting member 2 for the part far from the inspection hatch 18, and the second connection structure 4 using the fastener F1 for the part close to the inspection hatch 18. The fastener F1 in the embodiment is a screw. Since the first ceiling panel 11 uses the second connection structure 4 using the fastener F1 for the part close to the inspection hatch 18, the connection strength is higher than when the entire panel is the first connection structure 3. Note that the entire first ceiling panel 11 may be connected to the wall panel 91 by the first connection structure 3.

[0020] In particular, at least a part of the outer edge of the first ceiling panel 11 opposite to the second ceiling panel 12 is connected to the wall panel 91 by the mounting member 2. In this case, the connection can be performed from inside the bathroom space, improving workability. The first ceiling panel 11 is fixed by the second connecting structure 4 at a portion close to the second ceiling panel 12 where the mounting member 2 of the outer edge is not fixed. In the second connecting structure 4, the first ceiling panel 11 is fixed to the connecting member 36 from the ceiling space with the fastener F1, the connecting member 36 is fixed to the column member 34, and the column member 34 is fixed to the wall panel 91. Therefore, it can be said that the first ceiling panel 11 is indirectly connected to the wall panel 91. This also applies to the connection between the second ceiling panel 12 and the wall panel 91.

[0021] At least a part of the outer edge of the second ceiling panel 12 on the side opposite to the first ceiling panel 11 is fixed to the connecting material 36 by the fastener F1, which is a screw, as shown in FIG. 3. In the embodiment, the second ceiling panel 12 is connected to the wall panel 91 by the second connecting structure 4. This is because the entire circumference of the second ceiling panel 12 is close to the inspection hatch 18, so that it is easy for a worker to work while leaning his / her upper body from the inspection hatch into the ceiling space, and the cost of parts can be saved by not using the mounting member 2. Note that the second ceiling panel 12 may be connected to the wall panel 91 by the first connecting structure 3 in part or in whole. The first ceiling panel 11 and the second ceiling panel 12 are connected to each other by the fastener F1 at multiple points (for example, five points) where the panels butt against each other. In other words, the first ceiling panel 11 and the second ceiling panel 12 are connected to each other by the same fastener as the fastener for fixing the outer edge to the connecting material 36.

[0022] The first connecting structure 3 will be described with reference to Figures 4, 5, and 6. First, the connecting process of the first ceiling panel 11 will be briefly described. First, the mounting member 2 is fixed to the first ceiling panel 11. Next, the first ceiling panel 11 is lifted to a position above the upper end of the wall panel 91. Next, the first ceiling panel 11 is lowered while pressing the outer edge against the ties 36. During this process, the mounting member 2 fits into the wall panel 91, and the first ceiling panel 11 is connected to the wall panel 91. A detailed explanation will be given below.

[0023] The ceiling panels 11, 12 have a plate-shaped surface material 42 exposed to the bathroom space 90, and a plate-shaped backing material 44 attached to the back surface of the surface material 42 by adhesive or the like. In the embodiment, the surface material 42 is a decorative steel plate, and the backing material 44 is a gypsum board. The surface material 42 has a main surface portion 41 that spreads outward from the backing material 44 to the outer periphery, and a peripheral wall portion 43 that extends upward from the outer periphery of the main surface portion 41. In the embodiment, the main surface portion 41 extends parallel to a horizontal plane, and the peripheral wall portion 43 extends parallel to a vertical plane. The peripheral wall portion 43 is provided with a fold-back portion 45 that folds back from the upper end of the peripheral wall portion 43 to the inner periphery.

[0024] As shown in Fig. 4, the mounting member 2 is fixed in advance to a predetermined location on the outer edge of the first ceiling panel 11. In this embodiment, the mounting member 2 is fixed to the first ceiling panel 11 with the horizontal wall portion 27 abutting against the main surface portion 41 and the vertical wall portion 28 of the mounting member 2 abutting against the peripheral wall portion 43. The mounting member 2 is fixed to the first ceiling panel 11 by screwing a fastener F2 that penetrates the mounting member 2 into the main surface portion 41. The fastener F2 in this embodiment is a screw.

[0025] As shown in Fig. 5, the wall panel 91 has a plate-shaped surface material 92 exposed to the bathroom space 90 and a plate-shaped backing material 94 attached to the back surface of the surface material 92 by adhesive or the like. In the embodiment, the surface material 92 is a decorative steel plate, and the backing material 94 is a gypsum board. The surface material 92 has a main surface portion 95 extending above the backing material 94, an upper wall portion 96 extending laterally from an upper edge of the main surface portion 95, and an outer wall portion 97 extending downward from a lateral edge of the upper wall portion 96. In the embodiment, the main surface portion 95 and the outer wall portion 97 extend parallel to a vertical plane, and the upper wall portion 96 extends parallel to a horizontal plane.

[0026] In the embodiment, the wall panel 91 has a recess 98 formed between the outer wall portion 97 and the backing material 94. The recess 98 functions as an engaged portion. The mounting member 2 has a claw portion 22 that engages with the recess 98 provided in the wall panel 91. When the mounting member 2 is fixed to the first ceiling panel 11, the claw portion 22 protrudes toward the inside of the room.

[0027] In the process of connecting the first ceiling panel 11, as shown in Fig. 5, the position of the first ceiling panel 11 is adjusted so that the mounting member 2 is located between the tether 36 and the first ceiling panel 11. At this time, the tether 36 functions as a guide member that guides the first ceiling panel 11. Next, as shown by arrow P in Fig. 5, the first ceiling panel 11 and the mounting member 2 are lowered onto the wall panel 91. This connecting operation can be performed from inside the bathroom space.

[0028] When the mounting member 2 is placed on the upper side of the wall panel 91, it is pushed downward by the weight of the first ceiling panel 11, and the claw portion 22 is elastically deformed and fits into the recess 98. During this process, the claw portion 22 abuts against the outer wall portion 97 and retreats to the outside of the room, and then when it faces the recess 98, it advances to the inside of the room and fits into the recess 98. At this time, the lower end of the outer wall portion 97 abuts against the corner between the claw portion 22 and the vertical surface portion 23 that extends upward from the base end of the claw portion 22. With the claw portion 22 engaged with the recess 98, the claw portion 22 restricts the movement of the first ceiling panel 11. As a result, the first ceiling panel 11 is connected to the wall panel 91, and the mounting member 2 restricts the horizontal and vertical movement of the first ceiling panel 11 relative to the wall panel 91.

[0029] It is desirable that the work of separating the first ceiling panel 11 from the wall panel 91 is not complicated. Therefore, the mounting member 2 is configured so that when a predetermined force is applied to the mounting member 2 connected to the wall panel 91, the claw portion 22 is elastically deformed so that the claw portion 22 can be removed from the recessed portion 98. As an example, the claw portion 22 is configured to retreat to the outside of the room even when it is removed from the recessed portion 98. In this way, the first ceiling panel 11 can be removed from the recessed portion 98 by applying an upward force to the first ceiling panel 11 and the mounting member 2. When an upward force is applied to the mounting member 2, the mounting member 2 moves upward, and the claw portion 22 that has advanced into the recessed portion 98 abuts against the outer wall portion 97 and retreats to the outside of the room. When the mounting member 2 moves further upward and the claw portion 22 comes out above the outer wall portion 97, the claw portion 22 advances to the inside of the room and returns to its original shape. The configuration of the mounting member 2 will be described later.

[0030] In order to ensure a good seal, a sealant 99 such as silicone resin is applied to the corners between the wall panel 91 and the first ceiling panel 11 as shown in FIG.

[0031] The second connecting structure 4 will be described with reference to FIG. 7. Here, an example of the second connecting structure 4 applied to the second ceiling panel 12 will be described, but this description also applies to the second connecting structure 4 applied to the first ceiling panel 11. In the example of FIG. 7, the fastener F1 is a washer-attached screw incorporating a washer W. In the second connecting structure 4, the fastener F1 is screwed into a pilot hole 38 provided in a guide portion 37 of the connecting material 36 with the second ceiling panel 12 abutting against the upper wall portion 96 of the wall panel 91. As a result, the washer W engages with the peripheral wall portion 43 of the surface material 42, and the second ceiling panel 12 is connected to the wall panel 91. The connecting work of the second connecting structure 4 is performed from above the ceiling, which is outside the bathroom space.

[0032] An example of the mounting member 2 will be described with reference to Figures 8 and 9. As shown in the perspective view of Figure 8, the mounting member 2 has a member body 21, a claw portion 22, an arm portion 24, and a vertical wall portion 28. In the mounting member 2, the member body 21, the claw portion 22, the arm portion 24, and the vertical wall portion 28 are integrally formed by resin molding.

[0033] The member body 21 of the embodiment has a substantially rectangular box shape extending in the longitudinal direction (hereinafter simply referred to as the "longitudinal direction") of the mounting member 2. The member body 21 has a box shape with an internal cavity, which is advantageous for reducing weight. The claw portion 22 protrudes from the member body 21 in the lateral direction (hereinafter simply referred to as the "lateral direction") of the mounting member 2, and is supported by the member body 21 so as to be deformable due to its elasticity. The claw portion 22 is configured to be able to engage with the recess 98 of the wall panel 91. The longitudinal direction and the lateral direction are perpendicular to each other in a horizontal plane.

[0034] The claw portion 22 has an outer contour of an inverted triangle contracting downward when viewed in the longitudinal direction. The mounting member 2 has an upright portion 23 extending upward from the base end of the claw portion 22. The upright portion 23 extends along a vertical plane and abuts against the outdoor side of the exterior wall portion 97 when connected.

[0035] The arm portions 24 are plate-shaped portions extending in the longitudinal direction, and two are provided on either side of the claw portion 22. The two arm portions 24 support the claw portion 22 with respect to the member body 21. In other words, the mounting member 2 has two arm portions 24 extending in the longitudinal direction of the mounting member 2, and the claw portion 22 is provided between the two arm portions 24. The two arm portions 24 function as torsion bars that allow the claw portion 22 to move forward and backward by twisting.

[0036] The arm portion 24 is connected at its base end to the member body 21 and at its tip end to the claw portion 22. The mounting member 2 has a narrow portion 25 on the arm portion 24 to facilitate the change in position of the claw portion 22. The narrow portion 25 can provide the arm portion 24 with the desired torsional elasticity. By having the narrow portion 25, the flexibility of the arm portion 24 in the torsional direction is increased, and the elastic modulus of the arm portion 24 can be reduced. As a result, the position of the claw portion 22 supported by the arm portion 24 is easily changed. In other words, the mounting member 2 has a narrow portion 25 on the arm portion 24 to facilitate the change in position of the claw portion 22. The narrow portion 25 in the embodiment is formed by hollowing out the arm portion 24 in a U-shape from its upper edge downward.

[0037] The upper surface of the member body 21 forms a lateral wall portion 27 for abutting against the main surface portion 41 of the first ceiling panel 11. In the example of Fig. 8, the lateral wall portion 27 is a substantially flat surface and has a through hole 26 through which the fastener F2 passes vertically. Two through holes 26 are arranged spaced apart in the longitudinal direction. The two fasteners F2 pass through the two through holes 26, respectively, and are screwed into the main surface portion 41 of the first ceiling panel 11.

[0038] The vertical wall portion 28 is a thin plate-like portion extending upward from the outdoor end of the horizontal wall portion 27. The vertical wall portion 28 is a portion for abutting against the peripheral wall portion 43 of the first ceiling panel 11, and has a substantially rectangular outer contour when viewed from a direction perpendicular to the vertical wall portion 28.

[0039] The above is a description of the embodiment.

[0040] The following describes the modified examples. In the drawings and description of the modified examples, the same or equivalent components and members as those in the embodiment are denoted by the same reference numerals. Descriptions that overlap with the embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the embodiment.

[0041] (First Modification) A first modified example of the mounting member 2 will be described with reference to FIG. 10. In the description of the embodiment, an example has been shown in which the mounting member 2 has only one claw portion 22 and two through holes 26 for the fastener F2, but this is not limited thereto. For example, the number of claw portions 22 may be two or more, and the number of through holes 26 for the fastener F2 may be other than two. As shown in FIG. 10, the mounting member 2 of the first modified example has two claw portions 22 and one through hole 26 for the fastener F2. According to the first modified example, the number of fasteners F2 required is small, which is advantageous in terms of cost.

[0042] (Second Modification) A second modified example of the mounting member 2 will be described with reference to FIG. 11. In the description of the embodiment, an example in which the mounting member 2 is fixed to the first ceiling panel 11 using the fastener F2 has been shown, but the present invention is not limited to this. For example, the mounting member 2 may be fixed to the first ceiling panel 11 without using the fastener F2. In the second modified example shown in FIG. 11, the mounting member 2 has a top cover portion 282 that extends from the upper end of the vertical wall portion 28 to the indoor side and covers the upper end of the peripheral wall portion 43, and a side cover portion 284 that extends downward from the extending end of the top cover portion 282 and covers the folded-back portion 45. In other words, the vertical wall portion 28, the top cover portion 282, and the side cover portion 284 function as a housing portion that houses the peripheral wall portion 43 and the folded-back portion 45. In the second modified example, the top cover portion 282 and the side cover portion 284 embrace the peripheral wall portion 43 and the folded-back portion 45, so that the mounting member 2 is held by the first ceiling panel 11. According to the second modified example, the fastener F2 is not used, which is advantageous in terms of cost.

[0043] (Third Modification) A third modified example of the mounting member 2 will be described with reference to FIG. 12. In the description of the embodiment, an example in which the claw portion 22 is supported by the plate-shaped arm portion 24 extending in the longitudinal direction has been shown, but the present invention is not limited to this. For example, the claw portion 22 may be supported by an arm extending vertically. In the third modified example shown in FIG. 12, the mounting member 2 has a first arm 202 extending downward from the vertical wall portion 28, and a second arm 204 that is folded back from the lower end of the first arm 202 and extends upward. The claw portion 22 is provided at the upper end of the second arm 204. Although not shown, the mounting member 2 of the third modified example is fixed to the first ceiling panel 11 using a fastener F2. According to the third modified example, the first arm 202 and the second arm 204 can be lengthened, and the flexibility of the claw portion 22 can be increased.

[0044] (Fourth Modification) A fourth modified example of mounting member 2 will be described with reference to Fig. 13. The fourth modified example shown in Fig. 13 differs from the third modified example shown in Fig. 12 in that first arm 202 and second arm 204 are short and the distance between first arm 202 and second arm 204 is wide. According to the fourth modified example, since first arm 202 and second arm 204 are short, deformation such as sink marks during resin molding is small, which is advantageous in terms of shape accuracy.

[0045] (Other variations) In the embodiment, the base 31 is formed by combining the pillar members 34 and the connecting members 36, but is not limited to this. For example, the base may be an axis member such as a column or beam that constitutes the framework of a building.

[0046] In the description of the embodiment, the fasteners F1 and F2 are screws, but the present invention is not limited to this. Fasteners based on known principles can be used as the fasteners F1 and F2. The fastener F1 may be a combination of a washer and a screw, each of which is separate.

[0047] In the description of the embodiment, an example in which the technology of the present disclosure is applied to a bathroom has been shown, but the present disclosure is not limited to this. The technology of the present disclosure can be applied to a wall / ceiling unit including a wall panel that defines a predetermined space and a ceiling panel disposed above the wall panel.

[0048] Any combination of the above components is also effective as an aspect of the technical idea that abstracts the embodiment and the modified example. For example, any description of another embodiment may be combined with the embodiment, and any description of the embodiment and the modified example may be combined with the modified example.

[0049] The above describes the embodiments and modifications. When understanding the technical ideas that abstract the embodiments and modifications, the technical ideas should not be interpreted as being limited to the contents of the embodiments and modifications. The above-mentioned embodiments and modifications are merely illustrative examples, and many design changes such as changes, additions, and deletions of components are possible. In the embodiments, the contents in which such design changes are possible are emphasized by adding the notation "embodiment". However, design changes are also permitted even in contents without such notation. The hatching on the cross sections of the drawings does not limit the material of the hatched object. [Explanation of symbols]

[0050] 2 mounting part, 11 first ceiling panel, 12 second ceiling panel, 18 inspection hatch, 22 claw portion, 24 arm portion, 25 narrow width portion, 36 connecting material, 90 bathroom space, 91 wall panel, 98 recess, F1 fastener, 100 bathroom.

Claims

1. A bathroom space is defined by a wall panel, and a ceiling panel is disposed above the wall panel. In a bathroom, the ceiling panel is connected to the wall panel by engaging a mounting member that is previously fixed to the outer edge of the ceiling panel with the wall panel.

2. The mounting member has a claw portion that engages with a recess provided in the wall panel, The bathroom of claim 1, wherein the claw portion restricts movement of the ceiling panel when engaged with the recess.

3. The bathroom as described in claim 2, wherein the mounting member is configured so that when placed on the upper side of the wall panel, the claw portion elastically deforms due to the weight of the ceiling panel and fits into the recess.

4. The bathroom as described in claim 3, wherein the mounting member is configured to elastically deform when a predetermined force is applied to the mounting member, so that the claw portion can be detached from the recess.

5. The bathroom of claim 1, wherein the ceiling panel is fixed with screws at the portion of the outer edge of the ceiling panel where the mounting member is not fixed.

6. The ceiling panel includes a first ceiling panel and a second ceiling panel having an access opening; The bathroom of claim 1, wherein at least a portion of the outer edge of the first ceiling panel opposite the second ceiling panel is connected to the wall panel by the mounting member.

7. The bathroom of claim 6, wherein at least a portion of the outer edge of the second ceiling panel opposite the first ceiling panel is fixed with screws.

8. A ceiling panel is provided on an upper side of a wall panel that defines a predetermined space, The ceiling panel is connected to the wall panel by a mounting member previously fixed to the outer edge of the ceiling panel engaging with the wall panel.

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