JP2024021993A - bathtub and bathroom - Google Patents

Abstract

The present invention provides a bathtub that can suitably support the load of a suspended seat part, and a bathroom suitable for this bathtub. A bathtub 10 has a seat part 11. The seat portion 11 is suspended from multiple locations on the upper edge. The lower surface of the seat portion 11 contacts the floor in a state where hot water is stored. The bathtub 10 may have a reinforcing portion (the folded portion 11A, the rope 12). The reinforcing portion is provided along the upper edge of the sheet portion 11 and reinforces the upper edge of the sheet portion 11. [Selection diagram] Figure 5

Description

The present disclosure relates to bathtubs and bathrooms.

Patent Document 1 discloses a conventional bathtub. In this bathtub, a sheet-made bathtub body is suspended and supported by support members at four corners.

Japanese Patent Application Publication No. 2007-260180

In Patent Document 1, the bathtub body is supported only by a support member and floats off the floor of the bathroom. The support member must support all the loads applied to the bathtub body, such as the bathtub body filled with hot water and the bathtub body when a user is taking a bath, and must have appropriate strength.

The present disclosure has been made in view of the above-mentioned conventional situation, and has an object to provide a bathtub that can suitably support the load of a suspended seat part, and a bathroom suitable for this bathtub. This should be an important issue.

In order to solve the above-mentioned problems, a bathtub according to an embodiment of the present disclosure has a seat made of a sheet that can be suspended at multiple locations on the upper edge, and the seat has a seat that is suspended in a state where hot water is stored. , the bottom surface touches the floor.

The bathroom according to an embodiment of the present disclosure is equipped with the bathtub.

1 is a perspective view schematically showing a bathroom according to Embodiment 1. FIG. 1 is a perspective view schematically showing a bathroom according to Embodiment 1, with a bathtub removed. FIG. 1 is a plan view schematically showing a bathroom and a washroom according to Embodiment 1. FIG. FIG. 2 is an enlarged perspective view of the main parts of the bathroom according to the first embodiment, showing a state in which the bathtub is attached to the mounting member. 1 is a perspective view showing a bathtub according to Embodiment 1. FIG. 1 is a diagram for explaining a bathtub according to Embodiment 1. FIG. FIG. 2 is a plan view schematically showing a bathroom and a washroom according to Embodiment 1, with the partition section open. FIG. 2 is a perspective view schematically showing a bathroom according to a second embodiment. FIG. 7 is an enlarged perspective view of a main part showing a state in which a bathtub is attached to a faucet in a bathroom according to a second embodiment. FIG. 7 is an enlarged perspective view of a main part of a bathroom according to Embodiment 2, showing a state in which a bathtub is attached to a mounting member. FIG. 3 is a perspective view schematically showing a bathroom according to a third embodiment. FIG. 7 is a perspective view schematically showing a bathroom according to a fourth embodiment. FIG. 12 is a perspective view showing a mounting member for attaching a bathtub to the floor in a bathroom according to a fourth embodiment. It is a figure for explaining the attachment member (part 1) concerning other embodiments, and shows the state where a bathtub was attached. 15 is an exploded diagram showing the configuration of FIG. 14. FIG. It is a figure for explaining the attachment member (part 2) concerning other embodiments, and shows the state where a bathtub was attached. 17 is a diagram showing an exploded view of the configuration of FIG. 16. FIG. It is a figure for explaining the attachment member (part 3) concerning other embodiments, and shows the state where a bathtub was attached. 19 is an exploded diagram showing the configuration of FIG. 18. FIG. It is a figure for explaining the attachment member (part 4) concerning other embodiments, and shows the state where a bathtub was attached. FIG. 21 is a side cross-sectional view of the configuration of FIG. 20; It is a figure for explaining the attachment member (part 5) concerning other embodiments, and shows the state where a bathtub was attached. 23 is a diagram showing an exploded view of the configuration of FIG. 22. FIG. It is a figure for explaining the attachment member (part 6) concerning other embodiments, and shows the state where a bathtub was attached. 25 is an exploded diagram showing the configuration of FIG. 24. FIG. It is a figure for explaining the attachment member (part 7) concerning other embodiments, and shows the state where a bathtub was attached. It is a figure for explaining the attachment member (part 8) concerning other embodiments, and shows the state where a bathtub was attached. It is a figure for explaining the bathtub side attachment part (part 1) concerning other embodiments, and shows the state attached to the attachment member. 29 is an exploded diagram showing the configuration of FIG. 28; FIG. It is a figure for demonstrating the bathtub side attachment part (part 2) based on other embodiment, and shows the state attached to the attachment member. 31 is an exploded diagram showing the configuration of FIG. 30; FIG. It is a figure for explaining the bathtub side attachment part (part 3) concerning other embodiments, and shows the state attached to the attachment member. 33 is a diagram showing an exploded view of the configuration of FIG. 32. FIG. It is a figure for explaining the drainage part (part 1) concerning other embodiments. It is a figure for explaining the drainage part (part 2) concerning other embodiments. It is a figure for explaining the drainage part (part 3) concerning other embodiments. It is a figure for explaining the drainage part (part 4) concerning other embodiments.

<Embodiment 1>
Embodiment 1, which embodies the bathtub and bathroom of the present disclosure, will be described with reference to the drawings. A bathtub 10 according to this embodiment is arranged in a bathroom 1, as shown in FIGS. 1 and 2. The bathroom 1 has a rectangular parallelepiped shape that is long in the vertical direction (vertical direction). As shown in FIG. 3, the bathroom 1 is adjacent to the washroom B on one of the four sides in plan view. The bathroom 1 forms a smaller space than the adjacent washroom B. Specifically, the bathroom 1 according to the present embodiment has a width of about 1600 mm, a depth of about 1200 mm, and a height of about 2200 mm when viewed from the washroom B side. On the other hand, the washroom B forms a space with a length of about 2000 mm that is connected to the bathroom 1 and whose width and height are equivalent to the frontage and height of the bathroom 1.

As shown in FIGS. 1 and 2, the bathroom 1 includes walls W1, W2, W3, a ceiling C, and a floor F. The bathroom 1 is surrounded by walls W1, W2, and W3 on three sides except for the one adjacent to the washroom B in plan view. The bathroom 1 is sealed off by a ceiling C and a floor F at the upper and lower sides, respectively. The upper surface of the floor F extends substantially flush with the floor surface of the washroom B. The upper surface of the floor F is formed generally flat. Floor F has a slight slope so that hot water flows toward a drain port (not shown). The walls W1 and W2 are connected to the wall of the washroom B in substantially the same plane.

As shown in FIGS. 1 to 3, the bathroom 1 includes a partition P. The partition part P partitions off the washroom B so as to be openable and closable. The partition part P can open almost the entire frontage of the bathroom 1. By opening the partition part P, the bathroom 1 and the washroom B form one connected rectangular space in plan view.

As shown in FIGS. 1 to 3, the bathroom 1 is equipped with a shower device 2. The shower device 2 is arranged on the wall W1 among the walls W1, W2, and W3. The shower device 2 is arranged at a position closer to the wall W3 on the wall W1. The shower device 2 includes a faucet 3, an overhead shower 4, and a hand shower 5. The faucet 3 is formed into a long cylindrical shape that extends horizontally along the wall surface of the wall W1. The faucet 3 is connected to a water supply pipe and a hot water supply pipe (not shown) within the wall W1. The faucet 3 is a mixed faucet. The faucet 3 can adjust the amount of water, adjust the temperature by mixing hot water and water, stop water discharge, and the like. In this specification, hot water or water supplied from a faucet arranged in a bathroom is referred to as "hot water" regardless of the temperature, mixing ratio, etc.

As shown in FIG. 4, the faucet 3 forms a water outlet 3A. The spout 3A is formed in the shape of a long slit along the axial direction of the faucet 3. The water flow discharged from the water spout 3A has a horizontally long thin film shape. The faucet 3 can discharge hot water into the bathtub 10 from the spout 3A when a bathtub 10 (described later) is attached to the bathroom 1. The faucet 3 can select one of the spout 3A, the overhead shower 4, and the hand shower 5 to discharge hot water.

As shown in FIGS. 1 and 2, the overhead shower 4 is provided above the faucet 3. Overhead shower 4 is connected to faucet 3 via piping 6. The pipe 6 extends vertically upward from the faucet 3 along the wall surface of the wall W1, and is bent toward the inside of the bathroom 1 at its upper end. The overhead shower 4 is provided at the tip of this pipe 6. The hand shower 5 is connected to the faucet 3 via a hose 7. The hand shower 5 can be used movably within the length of the hose 7.

A bathtub 10, which will be described later, is attached to walls W1, W2, and W3 in the bathroom 1. In the case of this embodiment, the bathtub 10 is attached to a pair of walls W1, W2 located on the left and right when viewed from the washroom B side, among the three walls W1, W2, W3. As shown in FIG. 3, the bathtub 10 is arranged in a recessed position in the bathroom 1 when viewed from the washroom B side, and closer to the wall W3 than the partition P (washroom B). When the bathtub 10 is attached to the pair of walls W1 and W2, a space that can be used as a washing area is formed on the partition P side when viewed from the bathtub 10. In the case of this embodiment, the bathtub 10 is detachably attached to the walls W1 and W2. That is, when using the bathroom 1 for the purpose of not using the bathtub 10, the bathtub 10 can be removed and used. For example, as shown in FIG. 2, the bathroom 1 can be suitably used as a shower room by removing the bathtub 10.

The pair of walls W1 and W2 each have a mounting member 20. The attachment member 20 is attached by hooking a part of the bathtub 10. In the case of this embodiment, the mounting member 20 has a hook shape that opens upward and has a J-shape in side view, and is fixed to each wall W1, W2. As shown in FIG. 4, two mounting members 20 on the wall W1 side are arranged below the faucet 3 at intervals in the horizontal direction. Two mounting members 20 on the wall W2 side are provided at the same height and with the same spacing as the mounting members 20 on the wall W1 side. That is, in the case of this embodiment, four mounting members 20 in total are provided, two for each of the pair of walls W1 and W2. The bathtub 10 is attached to a mounting portion 21 corresponding to a hook-shaped portion of the mounting member 20. The attachment portion 21 removably attaches a bathtub side attachment portion 10A to the bathtub 10, which will be described later.

The bathtub 10 is detachably attached to a pair of walls W1, W2 facing each other among the walls W1, W2, W3. As shown in FIG. 5, the bathtub 10 has a bathtub side attachment part 10A. The bathtub side attachment portion 10A is detachably attached to attachment members 20 provided on the walls W1 and W2. The bathtub-side attachment portion 10A is provided at the upper edge of the bathtub 10. The bathtub side attachment portion 10A is attached by being hooked onto the attachment member 20. That is, the bathtub 10 is suspended from the attachment member 20 at the bathtub-side attachment portion 10A, which is at least a portion of the upper edge. The bathtub 10 is deformed to store hot water. The bathtub 10 can freely change its shape, such as a folded state or an expanded state. The bathtub 10 stores hot water in an expanded state.

The bathtub 10 of this embodiment includes a seat portion 11 and a rope 12. The seat portion 11 stores hot water. The seat portion 11 is made of a sheet. The sheet portion 11 has flexibility. The sheet portion 11 is formed into a boat shape that is rectangular in plan view by cutting, joining, etc. a flexible waterproof sheet. The seat portion 11 of this embodiment has poor elasticity and maintains its boat-shaped shape to some extent when hot water is stored therein.

The rope 12 is provided in an annular shape along the upper edge of the seat portion 11 . In the installed state of the bathtub 10, the outer edge of the seat portion 11 is suspended from the rope 12. The rope 12 constitutes a bathtub side attachment part 10A. The rope 12 also functions as a reinforcing section that reinforces the sheet section 11. As a result, the seat portion 11 has a boat shape with an outer edge serving as an upper edge and a center portion concave downward. In the state in which hot water is stored, the lower center surface of the seat portion 11 contacts the floor F of the bathroom 1. Thereby, the bathtub 10 can support most of the load on the floor F when filled with hot water. For this reason, the bathtub 10 can simplify the reinforcing structure in the walls W1 and W2 compared to a case where the bathtub 10 is supported only by the walls.

As shown in FIG. 6, the rope 12 is inserted into a folded portion 11A at the upper edge of the sheet portion 11. As shown in FIG. The folded portion 11A is formed by folding back the outer edge of the sheet portion 11 into a cylindrical shape. The folded portion 11A is formed over the entire circumference of the upper edge of the sheet portion 11. The folded portions 11A are divided at the four corners of the bathtub 10, which is rectangular in plan view. The ropes 12 are exposed to the outside at the four corners of the sheet portion 11. The bathtub 10 is detachably attached to the walls W1 and W2 by hooking the rope 12 exposed from the seat portion 11 onto the hook-shaped attachment portion 21 in this manner. That is, the bathtub 10 according to the present embodiment has a configuration in which the seat portion 11 is suspended at four locations on the upper edge via the ropes 12. Since the folded portion 11A is folded back to have a double structure, it also functions as a reinforcing portion at the upper edge of the sheet portion 11.

As shown in FIG. 5, the bathtub 10 of this embodiment has a drainage section 13. The drainage section 13 is configured by providing an opening in the lower part of the seat section 11 that can be opened and closed using a waterproof slide fastener. Thereby, the bathtub 10 can easily discharge the stored hot water to the outside of the bathtub 10.

The functions and effects of the bathtub 10 and bathroom 1 having the above configuration will be explained. The bathtub 10 is suspended from walls W1 and W2 at four points by ropes 12 as the bathtub-side attachment portion 10A, and contacts the floor F of the bathroom 1 at the lower center surface of the seat portion 11. Therefore, in the bathtub 10, the load can be suitably distributed and supported by the walls W1, W2 and the floor F.

In the case of this embodiment, the bathtub 10 is detachably attached to the walls W1 and W2. Therefore, the bathtub 10 can be installed and stored extremely easily. When installing the bathtub 10, the bathtub 10 can be installed by a simple method of attaching the ropes 12 exposed at the four corners to the attachment parts 21 of the walls W1 and W2 as the bathtub side attachment parts 10A. By appropriately attaching the bathtub-side attachment portion 10A to the attachment member 20, the bathtub 10 is suitably deformed into an expanded state for storing hot water.

The bathtub 10 is reinforced by stretching a rope 12 in an annular manner along the upper edge of the seat part 11, so that the bathtub 10 has sufficient strength to be suspended. Since the rope 12 is inserted into the folded portion 11A at the upper end of the sheet portion 11, the upper end of the sheet portion 11 can be well reinforced. The upper edge of the sheet portion 11 is further reinforced by forming the folded portion 11A.

To store hot water in the bathtub 10, a faucet 3 in the shower device 2 is used. As shown in FIG. 4, the faucet 3 can discharge a thin film of hot water from the spout 3A. When taking a bath using the bathtub 10, the user can bathe the nape of the neck and shoulders in the bathtub 10 with a thin film of hot water discharged from the spout 3A. The user can fill the bathtub 10 with hot water while taking a bath from the spout 3A. Since the bathtub 10 is deformable, it can be shaped to fit the user's body. Therefore, the bathtub 10 can store less hot water than a non-deformable bathtub.

When the bathtub 10 is filled with hot water, force due to the water pressure of the stored hot water acts on each part of the bathtub 10. Due to the action of this water pressure, each part of the bathtub 10 is deformed, and the seat part 11 and the rope 12 are put into a tensioned state. In particular, the rope 12 constituting the upper edge of the bathtub 10 is tightly stretched to the extent that it does not shake significantly even when you place your hand on it. Therefore, although the bathtub 10 is deformable, deformation is suppressed by storing hot water, and a stable shape can be maintained even when the user enters and exits the bathtub 10.

The lower surface of the central portion of the bathtub 10 contacts the floor F when hot water is stored therein. As the lower surface of the bathtub 10 contacts the floor F in this way, the weight of the hot water stored in the bathtub 10 and the user's own weight are suitably supported by the floor F. This prevents excessive load from being applied to the mounting portion 21. Therefore, in the bathroom 1, the hanging support structure can be simplified in terms of strength, compared to, for example, a structure in which the bathtub is suspended and supported only by the upper edge. Specifically, in the case of this embodiment, in the bathroom 1, the structure of the mounting member 20 and the walls W1, W2 can be simplified in terms of strength.

After bathing in the bathtub, the hot water stored in the bathtub 10 is drained from the drain section 13. Specifically, in the case of this embodiment, the fastener in the drain section 13 is opened to drain hot water. As mentioned above, the bathtub 10 deforms to store hot water. Therefore, the bathtub 10 can be deformed from a shape for storing hot water to another shape by changing the state from a state in which hot water is stored to a state in which hot water is removed. The bathtub 10 after draining hot water can be removed from the walls W1 and W2 and placed in a folded state. The bathtub 10 can be easily stored in this folded state.

When removing the bathtub 10 from the walls W1, W2, the bathtub 10 can be removed by a simple operation such as removing the rope 12, which is the bathtub side attachment part 10A, from the attachment part 21. The removed bathtub 10 is washed, dried, folded and stored. Since the bathtub 10 is removable, the entire inner and outer surfaces of the bathtub 10 can be washed, unlike conventional stationary bathtubs. Since the bathtub 10 is made of a flexible and deformable sheet-like material, it can be washed, dried, and folded just like laundry. In the bathroom 1 with the bathtub 10 removed, a flat floor F is exposed. Therefore, the floor F of the bathroom 1 is easy to clean, and cleanliness is easy to maintain. Since the bathtub 10 is flexible and deformable, for example, by placing a chair, bench, cushion, etc. between it and the floor F, the bathtub 10 can be bathed in a desired posture. A massage device or a heater may be placed between the bathtub 10 and the floor F. Since these devices are placed outside the bathtub 10, they do not need to be waterproof.

The bathtub 10 with hot water and water removed may be hung together on one of the walls W1 and W2, for example. In the bathroom 1, the bathtub 10 is installed in an expanded state in both the state where the bathtub 10 is removed from the walls W1 and W2 and the state where the bathtub 10 is hung together on one of the walls W1 and W2. It can be used as a relatively wide space with the entire floor F exposed when it is not covered.

As shown in FIG. 2, the bathroom 1 is suitable for taking a shower, for example, when the bathtub 10 is removed. In the bathroom 1, when the bathtub 10 is not attached, the entire floor F can be used as a washing area for taking a shower. In the bathroom 1, a shower can be taken using at least one of the overhead shower 4 and the hand shower 5 in the shower device 2. The bathroom 1 has a width of 1,600 mm and a depth of 1,200 mm, which is a larger space than a conventional general shower room or washing area, allowing the user to enjoy a relaxing shower. When taking a shower with the bathtub 10 removed, bubbles and water do not adhere to the bathtub 10 in the bathroom 1. Therefore, the bathroom 1 is easy to clean after taking a shower.

Since the bathtub 10 is detachable, it can also contribute to making the bathtub barrier-free. For example, the bathtub 10 is placed on the floor F before being attached to the attachment member 20. The user stands on the bathtub 10 in this state. Thereafter, by attaching the bathtub-side attachment part 10A of the bathtub 10 to the attachment member 20 and filling it with hot water, the user can take a bath without stepping over the upper edge of the installed bathtub 10. According to such a bathing method, even users who have difficulty stepping over the upper edge of the bathtub 10 or users in wheelchairs can easily bathe in the bathtub.

As shown in FIG. 7, the bathroom 1 can form a single space connected to the washroom B by opening the partition P. The space created by this is larger than the space created by the bathroom 1 alone. The space thus formed can be used for multiple purposes, such as a fitness room, laundry room, etc., which require a larger space.

Since the bathtub 10 is made of a flexible sheet, it is easier to manufacture at a lower cost than conventional bathtubs made of FRP or the like. Therefore, it is relatively easy to provide a dedicated bathtub 10 for each user. In this case, the size, design, etc. of the bathtub 10 can be freely set according to each user. The bathtub 10 is advantageous in terms of transportation cost, recyclability, etc. compared to conventional stationary bathtubs made of FRP or the like. Therefore, the bathtub 10 can reduce the environmental load. It is relatively easy for one user to own a plurality of such bathtubs 10. In this case, the user can select and use a desired bathtub 10 from a plurality of bathtubs 10 depending on the mood, season, etc., just like selecting clothes.

As described above, the bathtub 10 according to Embodiment 1 has the sheet portion 11 made of a sheet that is suspended from four locations on the upper edge. The lower surface of the seat portion 11 contacts the floor F in the bathroom 1 in a state in which hot water is stored therein.

In the bathtub 10, the lower surface of the seat part 11 contacts the floor F, so that the floor F can support the load of hot water accumulated on the seat part 11. A user who takes a bath in the bathtub 10 rides on the floor F via the seat part 11 because the lower center surface of the seat part 11 is in contact with the floor F. In this way, the bathtub 10 can distribute the load on the upper edge of the seat portion 11 and the floor F. Therefore, the bathtub 10 can suitably support the load of the suspended seat portion 11.

The bathtub 10 has a rope 12 as a reinforcing part. The rope 12 is provided along the upper edge of the seat part 11 and reinforces the upper edge of the seat part 11. Therefore, the bathtub 10 can suitably support the load at the upper edge.

When the bathtub 10 is filled with hot water, its upper edge is stretched. Therefore, although the bathtub 10 has the sheet portion 11 made of a sheet that is easily deformed, it can maintain a stable shape when the user takes a bath.

The bathroom 1 according to the first embodiment is suitable for installing the bathtub 10.

In the bathroom 1, walls W1 and W2 have mounting members 20. The attachment member 20 detachably attaches the bathtub 10. For this reason, the bathroom 1 can form a large space by removing the bathtub 10, for example, when taking a shower. That is, the bathtub 10 can be attached to the bathroom 1 only when the bathtub 10 is needed, and the bathtub 10 can be removed when the bathtub 10 is not needed. Therefore, when the bathroom 1 is to be used for a purpose other than the purpose for which the bathtub 10 is used, by removing the bathtub 10, the bathroom 1 can be used more space efficiently due to the absence of the bathtub 10. It is desirable that the bathroom 1 is a waterproofed space using waterproof pans on the floor. In that case, in addition to being a shower room, the waterproof space can be used for multiple purposes such as caring for houseplants or doing hot yoga.

In the bathroom 1, the attachment member 20 suspends the bathtub 10 at a bathtub side attachment portion 10A that is at least a part of the upper edge of the bathtub 10. Therefore, the bathroom 1 can be stably attached to the walls W1 and W2 even if the bathtub 10 is made of a sheet and has a sheet portion that is easily deformed.

<Embodiment 2>
A bathroom according to Embodiment 2 will be described with reference to the drawings. The bathroom 201 according to the second embodiment differs from the bathroom 1 according to the first embodiment in the configuration for attaching the bathtub 10. The bathtub 10 in Embodiment 2 has the same configuration as in Embodiment 1 described above. In the following description, components similar to those in Embodiment 1 are given the same reference numerals and redundant description will be omitted.

As shown in FIG. 8, the bathroom 201 according to the second embodiment includes a faucet 203 as a mounting member and a mounting member 220. Faucet 203 is attached to wall W1. As shown in FIG. 9, the faucet 203 has the same configuration as the faucet 3 of Embodiment 1, except that it includes a mounting portion 221. That is, the faucet 203 forms a water spout 3A in the form of an elongated slit along the axial direction of the faucet 203, and discharges water in the form of a horizontally long thin film. The attachment portions 221 are provided at both ends of the faucet 203 in the longitudinal direction. The mounting portion 221 has a shape in which the peripheral wall of the cylindrical faucet 203 is reduced in diameter into a groove shape. The attachment portions 221 at both ends of the faucet 203 have a configuration in which the water spout 3A is sandwiched therebetween.

The mounting member 220 is attached to the wall W2. As shown in FIG. 10, the mounting member 220 has a shape that resembles the faucet 203. Specifically, the mounting member 220 is formed into a long cylindrical shape extending horizontally along the wall surface of the wall W2. The mounting portion 221 of the mounting member 220 has the same configuration as the mounting portion 221 of the faucet 203. That is, the mounting portions 221 of the mounting member 220 are provided at both ends of the mounting member 220 in the longitudinal direction, and are formed by reducing the diameter of the circumferential wall of the mounting member 220 in the form of a groove in the circumferential direction. The attachment member 220 may be used as a handrail when entering the bathtub.

The bathroom 201 according to the second embodiment having the above configuration is suitable for attaching the bathtub 10 as in the first embodiment. In the bathroom 201, by providing the faucet 203 as a mounting member on the wall W1 side, the number of members that function only as a mounting member can be reduced. Therefore, the bathroom 201 can achieve a neat design as a whole. In the bathroom 201, by making the mounting member 220 on the wall W2 side have a shape that imitates the faucet 203, the designs of the two mounting members are harmonious and a clean aesthetic appearance can be achieved.

<Embodiment 3>
The bathroom 301 according to the third embodiment is different from the above embodiments in that the bathtub 10 is attached to the wall W1 and the ceiling C, as shown in FIG. The bathtub 10 in this third embodiment has the same configuration as in each of the above embodiments. In the following description, the same components as in each of the above embodiments are given the same reference numerals, and redundant description will be omitted.

As shown in FIG. 11, the bathroom 301 is similar to the second embodiment in that a faucet 203 is provided as a mounting member on the wall W1 side. The bathroom 301 differs from the second embodiment in that the other mounting member 320 is provided on the ceiling C instead of the wall W2. In this embodiment, the bathtub 10 is detachably attached to the wall W1 and the ceiling C.

The mounting member 320 is formed in an elongated cylindrical shape, similar to the mounting member 220 of the second embodiment. Similarly, the mounting portions 321 are formed in the shape of grooves at both ends of the mounting member 320 in the longitudinal direction. The attachment member 320 is connected to the lower end of a rope 322 suspended from the ceiling C. The upper end of the rope 322 is connected to a reinforcing structural material (not shown) on the ceiling or attic, a building frame, etc., to ensure sufficient strength to suspend the bathtub 10.

The bathroom 301 according to the third embodiment having the above configuration is suitable for attaching the bathtub 10, similarly to the first embodiment. The bathroom 301 can have a clean design by providing the mounting part 221 on the faucet 203. In the bathroom 301, the bathtub 10 is suspended from a mounting member 320 provided on the ceiling C. Therefore, when the bathroom 301 is used as a bathroom with the bathtub 10 installed, it is possible to create an unusual feeling of a suspended bathtub.

<Embodiment 4>
A bathroom 401 according to the fourth embodiment is different from the above embodiments in that the bathtub 10 is attached to a mounting member 420 placed on the floor F, as shown in FIG. 12. The bathtub 10 in Embodiment 4 has the same configuration as in each of the above embodiments. In the following description, the same components as in each of the above embodiments are given the same reference numerals, and redundant description will be omitted.

As shown in FIG. 12, the bathroom 401 includes a faucet 203 as a mounting member and a mounting member 420. As shown in FIG. 13, the mounting member 420 is formed in an elongated cylindrical shape, similar to the mounting member 220 of the second embodiment. The mounting member 420 is also similar to the mounting member 220 in that mounting portions 421 are formed in the shape of grooves at both ends in the longitudinal direction. The attachment member 420 is attached to the upper end of the frame 422. The frame body 422 is movably installed on the floor F.

The bathroom 401 according to the fourth embodiment having the above configuration is suitable for attaching the bathtub 10, similarly to the first embodiment. In the bathroom 401, when the bathtub 10 is removed, the mounting member 420 provided with the mounting portion 421 can also be moved to a desired position, so that the bathroom 401 can be used more space efficiently when the bathtub 10 is used for an unnecessary purpose. be able to.

<Other embodiments>
The present disclosure is not limited to the embodiments described above and illustrated in the drawings; for example, the following embodiments are also included within the technical scope of the present disclosure. In the present disclosure, various features of the embodiments described above and the embodiments described below may be combined in any manner as long as they do not contradict each other.

The configuration, size, spatial shape, etc. of the bathroom according to the present disclosure are not limited to the above embodiments. For example, the bathroom may have a partition with a wall and a door, and may be connected to the washroom so that it is not used as a single space. In that case, a mounting member may be placed on the wall on the washroom side. Preferably, the bathroom has functions that allow bathing or showering, such as waterproofing and drainage functions. In the bathroom, it is preferable to provide a reinforcing structure on the back side of the bathroom (behind the wall or at the ceiling) corresponding to the mounting member.

The configuration, external shape, etc. of the faucet according to the present disclosure are not limited to the above embodiments. The faucet may discharge hot water in a form other than a thin film, such as a straight line, an annular shape, or a shower shape. For example, the faucet may be attached to the floor, or may be attached to both the floor and the wall. When the faucet has an attachment part, the configuration of the attachment part is not limited to the configuration of each of the above embodiments. The attachment portion provided on the faucet may be, for example, a form in which a recess, a groove, or the like is formed in at least a portion of the outer surface of the faucet.

The bathtub according to the present disclosure is not limited to one in which at least a portion of the bathtub is attached to a wall. The bathtub may be one in which all of the bathtub-side attachment parts are attached to the ceiling, or all the attachment parts on the bathtub side may be attached to attachment members installed on the floor. When the bathtub is filled with hot water, at least a portion of the bottom surface, not just the central bottom surface, may be in contact with the floor.

The configuration of the bathtub according to the present disclosure is not limited to the above embodiments. The bathtub may be configured to include a seat portion and a reinforcing portion such as a rope, as in each of the above embodiments, or may be configured to include only a seat portion. For example, the bathtub may be non-removably attached to a wall or ceiling.

Examples of the sheet constituting the seat portion include a lamination of a waterproof material such as a resin film and a material for ensuring strength such as canvas, or a material such as canvas that contains waterproof resin, rubber, etc. Examples include things that have been invaded. The shape etc. of the seat portion are not limited to the above embodiments. The sheet portion is not limited to the above-mentioned sheet material having excellent flexibility and poor elasticity, but may be made of a sheet material having excellent both flexibility and elasticity, for example. It is preferable that the sheet portion has poor elasticity and retains its shape to some extent when filled with hot water. For example, the seat portion may be deformed into a shape capable of storing hot water by stretching. The sheet portion is preferably waterproof, but is not limited thereto.

When the bathtub has a reinforcing part, the structure of the reinforcing part, etc. are not limited to the above embodiments. The reinforcing portion is not limited to flexible materials such as the ropes exemplified in each of the above embodiments, but also materials with poor flexibility and rigidity, such as cylindrical bodies, rod-shaped bodies, linear bodies, and plate materials made of resin or metal. It may be excellent in quality.

The configuration of the bathtub side attachment part according to the present disclosure is not limited to the above embodiments. The bathtub side attachment part may be formed by a part of the seat part, or may be formed by a member other than the seat part, such as a rope. The bathtub side attachment part can adopt various forms such as a hook shape, a bag shape, in addition to the annular shape and the cylindrical shape illustrated in each of the above embodiments. The bathtub side attachment part may be attached to the attachment member via another member such as a rope, for example. The bathtub side attachment portions may be provided at a plurality of locations, that is, two or more locations. The number of bathtub-side attachment parts is preferably provided at four corners of the bathtub, which is rectangular in plan view, but is not limited to the above embodiments. It is preferable that the bathtub side attachment portions are provided at three or more locations, for example. The bathtub-side attachment portion may be provided, for example, over the entire length of at least a pair of opposite sides of each side of the bathtub that is rectangular in plan view. In these cases, the bathtub can be stably attached.

The number, configuration, etc. of the attachment parts according to the present disclosure are not limited to the above embodiments. For example, the number of attachment portions may be greater than the number of bathtub side attachment portions. In this case, when installing the bathtub, the placement, shape, etc. of the bathtub can be selectively changed by selecting some of the multiple attachment sections and attaching the bathtub-side attachment sections according to the user's preference. be able to. The attachment portion is not limited to the hook shape, groove shape, etc. illustrated in each of the above embodiments, but can adopt various shapes such as a rod shape, an annular shape, etc., for example.

The mounting member according to the present disclosure may have a form as shown in FIG. 14, for example. In FIG. 14, a mounting member 520 has a mounting portion 521. As shown in FIG. The attachment portion 521 is provided between both ends of the attachment member 520 having a long cylindrical shape. The mounting member 520 is supported by support portions 522 provided on a pair of opposing walls, for example, in groove-shaped portions formed at both ends in the longitudinal direction. As shown in FIG. 15, the support portion 522 has a rectangular parallelepiped box shape with an upward opening, and has a notch-like portion on one surface into which the end of the mounting member 520 is inserted. The mounting member 520 is spanned between the pair of walls with both ends supported by the support portions 522. In this state, the attachment member 520 is arranged along the longitudinal direction of the bathtub 510.

With respect to the attachment member 520 having the above configuration, the bathtub 510 can be attached to the attachment portion 521 at the end in the transverse direction, that is, at the long side in plan view. The bathtub 510 has a bathtub-side attachment portion 510A. The bathtub-side attachment portion 510A is formed by folding back the short-side end of the bathtub 510 into a cylindrical shape. The bathtub side attachment part 510A is attached to the attachment part 521 by passing the attachment member 520 through it in the axial direction from one end. Such a mounting member 520 also functions as a reinforcing member for reinforcing the bathtub 510.

The mounting member according to the present disclosure may have a form as shown in FIG. 16, for example. In FIG. 16, a mounting member 620 has a mounting portion 621. As shown in FIG. The attachment portion 621 is provided between both ends of the columnar attachment member 620. Attachment member 620 may be supported by rail member 622, for example, at both ends in the longitudinal direction. The rail member 622 is a channel steel member having a substantially U-shaped cross section. The rail member 622 is provided to extend in the vertical direction along the wall surface. The rail member 622 forms a plurality of holes 622A arranged in the vertical direction. The mounting member 620 is selectively inserted into the hole 622A. The user selects a plurality of holes 622A at a desired height and inserts the mounting member 620 so that the bathtub 610 has a desired height.

The mounting member 620 may be bent into an L-shape at both ends 620A, as shown in FIGS. 16 and 17. The hole 622A is formed in a size that allows the attachment member 620 to be inserted therein. Such a combination of the mounting member 620 and the hole 622A can provide a function of preventing the mounting member 620 from coming off from the hole 622A. The hole 622A may be formed, for example, in the shape of a long hole. As a result, when the mounting member 620 is removed, the directionality around the axis relative to the hole 622A is restricted, so that a more reliable retaining function can be provided.

In contrast to the attachment member 620 having the above configuration, the bathtub 610 is attached to the attachment member 620 at the bathtub side attachment portion 610A shown in FIGS. 16 and 17. The bathtub side attachment portion 610A is formed by folding back to form a cylindrical shape at the four corners of the bathtub 610. When installing the bathtub 610, place it in the groove of the rail member 622 at a height that matches the desired hole 622A, and in this state, from the side of the rail member 622, insert the hole 622A, the bathtub side attachment part 610A, and the hole. Insert the mounting members 620 in the order of 622A.

The rail member may have a form as shown in FIGS. 18 and 19, for example. Similarly to the rail member 622, the rail member 722 shown in FIGS. 18 and 19 has a plurality of holes 722A formed in the vertical direction. The plurality of holes 722A have a substantially circular inner peripheral shape. The plurality of holes 722A are connected in the vertical direction by slits 722B. The slit 722B has a width smaller than the inner diameter of the hole 722A.

For such a rail member 722, the mounting member 720 has a cylindrical shape, as shown in FIG. 19, and is inserted into any hole 722A in the rail member 722. The mounting portion 721 of the mounting member 720 corresponds to a portion between both ends. The mounting member 720 has an outer diameter equivalent to the inner diameter of the hole 722A, and can be freely inserted into the hole 722A. Both end portions 720A of the attachment member 720 are formed with a width across two surfaces that is equivalent to the width of the slit 722B. Thereby, the mounting member 720 can be attached to a desired hole 722A by moving the rail member 722 in the vertical direction through the slit 722B without removing it from the rail member 722. Therefore, the height position of the bathtub side attachment part 610A can be changed while it is attached to the attachment part 721. In this case, not only can the bathtub be easily changed to a desired height position, but it is also effective, for example, when draining hot water in the bathtub. That is, according to the above configuration, hot water in the bathtub can be easily drained by simply lowering the height of one of the bathtub-side attachment parts without providing a drainage part in the bathtub.

The mounting member according to the present disclosure may be provided in a configuration as shown in FIGS. 20 and 21, for example. The attachment portion 821 shown in FIGS. 20 and 21 is configured by a first rod-shaped member 820A and a second rod-shaped member 820B as attachment members. The first rod-shaped member 820A and the second rod-shaped member 820B are arranged in the vertical direction, each extending parallel to the wall surface and in the horizontal direction. The first rod-shaped member 820A is fixedly attached to the wall. The second rod-shaped member 820B is provided above the first rod-shaped member 820A so as to be movable vertically in parallel with respect to the first rod-shaped member 820A. The bathtub 810 shown in FIG. 20 is attached to the attachment part 821 at the bathtub side attachment part 810A. Specifically, the bathtub side attachment part 810A is attached to the attachment part 821 by being wrapped in an S-shape and being sandwiched between two rod-shaped members 820A and 820B from above and below. In this case, the weight of the bathtub acts in a direction that increases the strength with which the bathtub-side attachment portion 810A is sandwiched between the two rod-shaped members 820A and 820B, so that even stronger attachment can be achieved. As shown in FIG. 21, a folded portion 811A is formed at the end of the bathtub side attachment portion 810A. In the bathtub-side attachment part 810A, the folded-back part 811A functions to prevent the attachment part 821 from coming off.

The mounting member according to the present disclosure may have a form as shown in FIGS. 22 and 23, for example. In FIGS. 22 and 23, the mounting member 920 has a mounting portion 921. As shown in FIGS. The attachment portion 921 is an annular portion of the attachment member 920. The bathtub side attachment part may be, for example, a bathtub side attachment part 910A as shown in FIG. 23. The bathtub side attachment part 910A has a configuration in which a part of the upper end of the bathtub 910 is extended outward, and the extended end is formed into a bag shape. A spherical body 910B shown in FIG. 23 is inserted into the bathtub side attachment portion 910A. The spherical body 910B has an outer diameter larger than the maximum inner diameter of the attachment portion 921, and has a certain degree of rigidity. To attach the bathtub-side attachment portion 910A to the attachment portion 921, the bathtub-side attachment portion 910A is passed through the annular attachment portion 921, and then the spherical body 910B is inserted into the bag-shaped portion at the tip. As a result, the spherical body 910B is caught on the attachment portion 921 and prevented from coming off, and the state in which the bathtub side attachment portion 910A is attached to the attachment portion 921 is maintained.

Various types of bathtub side attachment parts can be attached to the annular attachment part as described above. For example, the bathtub side attachment part 1010A shown in FIGS. 24 and 25 has the same configuration as the bathtub side attachment part 910A described above, except that the tip thereof is not formed in a bag shape. The bathtub side attachment portion 1010A passes through the annular attachment portion 921, and then its tip portion is tied to the ring 1010B. Like the spherical body 910B, the ring 1010B has an outer diameter larger than the maximum inner diameter of the attachment part 921 and has a certain degree of rigidity, so the bathtub side attachment part 1010A is attached to the attachment part 921. condition can be maintained. The bathtub side attachment part 1010A can be attached by simply tying it to, for example, an annular attachment part such as the attachment part 921, a hook-shaped attachment part, or the like. In this case, the shape of the bathtub can be adjusted simply by changing the way the knot is tied.

The attachment member may have a form as shown in FIG. 26, for example. In FIG. 26, a mounting member 1120 is configured to be removably attached to a desired position on a wall by magnetic force. The mounting member 1120 connects the support member 1122 so as to be rotatable around an axis extending in a substantially horizontal direction. The support member 1122 is pivotally supported by the mounting member 1120 at its upper end. The support member 1122 has a rod shape extending downward from the attachment member 1120 and contacts the floor F at a floor support portion 1122A provided at the lower end. The support member 1122 can maintain the state in which the floor support part 1122A is in contact with the floor F even when the angle with respect to the attachment member 1120 is changed according to the height position of the attachment member 1120. For such a mounting member 1120, the mounting portion is not limited to the annular form shown in FIG. 26, but can be provided in the various forms described above.

The floor support portion 1122A may be provided with a non-slip structure against the floor F, for example. As the anti-slip structure, for example, a structure in which a suction cup is provided to stick to the floor F, a structure in which a sheet material such as rubber or elastomer is provided on the contact surface with the floor F, etc. can be adopted. As shown in FIG. 26, the anti-slip structure may be, for example, a structure in which a plate-shaped anti-slip member F1 is laid on the floor F and the floor support part 1122A is brought into contact with the end of this anti-slip member F1. good. In this case, it is preferable that the anti-slip member F1 be in contact with the lower center surface of the bathtub when hot water is stored. Thereby, it is possible to suppress the displacement of the anti-slip member F1 itself, and it is possible to effectively prevent the displacement of the floor support portion 1122A of the support member 1122 and the mounting member 1120 connected thereto.

The attachment member may have the form shown in FIG. 27, for example. In FIG. 27, a mounting member 1220 has a mounting portion 1221. The attachment portion 1221 is provided between both ends of the attachment member 1220 which has a long cylindrical shape. For example, as shown in FIG. 27, the attachment member 1220 can be detachably supported by two annular ropes 1222 in groove-shaped portions formed at both ends in the longitudinal direction. Two annular ropes 1222 may be suspended from a hanging member 1223, for example, as shown in FIG. 27. The hanging member 1223 is configured in the shape of a hanging ring in which a ring is provided at the lower end of a rod-shaped part suspended from the ceiling C. The upper end of the hanging member 1223 is connected to a reinforcing structural material, a building frame, etc. (not shown) in the ceiling. The hanging member 1223 is not limited to the ceiling, and may be attached to, for example, a wall.

The bathtub side attachment part may have a form as shown in FIGS. 28 and 29, for example. The bathtub side attachment portion 1310A shown in FIGS. 28 and 29 is configured by a part of the seat portion 1311. Specifically, the bathtub side attachment portion 1310A has a hole formed at the outer edge of the seat portion 1311 of the bathtub 1310, and the peripheral edge of this hole is reinforced with an eyelet 1314. The seat portion 1311 is reinforced by being folded back and overlapped at the portion where the bathtub side attachment portion 1310A is provided. As shown in FIGS. 28 and 29, such a bathtub-side attachment portion 1310A can be attached to a hook-shaped attachment member 20 similar to that of the first embodiment.

The bathtub side attachment portion may have a form as shown in FIGS. 30 and 31, for example. The bathtub side attachment part 1410A shown in FIGS. 30 and 31 is provided on a bathtub side attachment member 1414 attached to the outer edge of the seat part 1411 in the bathtub 1410. The bathtub side attachment member 1414 may be formed as an integrally molded product made of resin or the like, for example. The bathtub side attachment member 1414 has an annular portion 1414A and a holding portion 1414B. The annular portion 1414A constitutes a bathtub side attachment portion 1410A. The annular portion 1414A has a ring shape and can be attached to a hook-shaped attachment member or the like. The holding portion 1414B is connected to the annular portion 1414A and holds the outer edge of the seat portion 1411. The holding portion 1414B holds the outer edge of the sheet portion 1411 by sandwiching it between a plate-like member having a plurality of protrusions and another plate-like member having holes into which the plurality of protrusions fit. The two plate members in the holding portion 1414B are connected at one end, for example, and can be opened and closed like a hinge by being elastically deformed. The outer edge of the seat portion 1411 is reinforced by folding and overlapping the portion where the bathtub side attachment member 1414 is attached. For example, instead of the annular portion 1414A, the bathtub-side attachment member 1414 may have a hook-shaped portion or the like that constitutes a bathtub-side attachment portion in another form.

The bathtub side attachment part may have a form as shown in FIGS. 32 and 33, for example. The bathtub side attachment part 1510A shown in FIGS. 32 and 33 is provided on a bathtub side attachment member 1514 attached to the outer edge of the seat part 1511 in the bathtub 1510. As shown in FIGS. 32 and 33, the bathtub side attachment member 1514 has an elongated rod shape, and is non-removably fixed to the seat portion 1511 by wrapping the outer edge of the seat portion 1511. Both ends of the bathtub-side attachment member 1514 protrude from the outer edge of the seat portion 1511 and are exposed. The bathtub-side attachment portion 1510A is provided at a portion exposed from the seat portion 1511 at both ends of the bathtub-side attachment member 1514. The bathtub-side attachment portion 1510A has a groove shape and can be attached to a hook-shaped, ring-shaped, or other attachment member.

It is not essential that the bathtub according to the present disclosure has a drainage section. When the bathtub has a drainage section, the configuration of the drainage section, etc. is not limited to the above embodiments. The drain section may be a drain section having various known plugs, such as a resin plug used in a floating ring or the like, a rubber plug used in a conventional bathtub, or a plug used in a water bottle.

The drainage section may have a form as shown in FIG. 34, for example. A drainage section 1613 shown in FIG. 34 is provided in the bathtub 1610. Unlike the above embodiments, the bathtub 1610 has an upper edge formed only by a seat portion 1611. That is, the bathtub 1610 does not include an annular rope along the upper edge of the seat portion 1611. The drainage section 1613 is configured with a sliding fastener having waterproof properties similar to those of the above embodiments. A fastener in the drainage section 1613 is provided at the top of the seat section 1611. The drainage part 1613 can be opened by dividing the upper edge of the seat part 1611 by sliding the fastener downward.

As shown in FIG. 34, the lower end of the fastener in the drain section 1613 is set at a position slightly higher than the assumed water surface height in the bathtub 1610. That is, the drain section 1613 will not be submerged in water when the bathtub 1610 is filled with a normal amount of hot water. Therefore, the drainage section 1613 can avoid leakage of hot water regardless of the level of waterproofness of the zipper. When the fastener is opened, the outer circumferential length of the upper edge of the seat portion 1611 increases, causing slack. Therefore, the bathtub 1610 can drain a certain amount of hot water using the drain section 1613. The hot water remaining in the bathtub 1610 is drained by removing the bathtub 1610. The bathtub 1610 from which a certain amount of hot water has been drained using the drain section 1613 is lighter than before draining, and therefore can be easily removed. As described above, the bathtub 1610 does not include the annular rope along the upper edge of the seat portion 1611. In another embodiment of the bathtub 1610, for example, a rope is arranged only on the long side of the seat part 1611 for the purpose of reinforcing it or as an attachment part on the bathtub side, and a fastener is placed on the upper part of the short side where no rope is arranged. It is also possible to provide one.

The drainage portion may have a form as shown in FIG. 35, for example. A drainage section 1713 shown in FIG. 35 is provided integrally with the seat section 1711. The drainage portion 1713 has an inner surface that is tightly adhered with an adhesive material or the like, and is closed so that water cannot be easily discharged from the pipe. When hot water is stored in the bathtub 1710, the bathtub 1710 is further pressurized and closed, thereby preventing the hot water from being discharged. The drain section 1713 can drain hot water in the bathtub 1710 to the outside by opening against water pressure.

The drainage portion may have a form as shown in FIG. 36, for example. A drainage section 1813 shown in FIG. 36 is provided integrally with the seat section 1811. Drainage section 1813 is formed into a tubular shape that projects outside of bathtub 1810. The tubular drainage portion 1813 is bendable. The drain portion 1813 is formed with a length that allows its tip to be placed above the water surface level when hot water is stored in the bathtub 1810. By arranging the distal end of the drain section 1813 above the water surface, hot water can be prevented from being discharged, and hot water can be maintained in the bathtub 1810. The drain portion 1713 can easily drain the hot water in the bathtub 1810 by arranging its tip below the water surface.

The drainage section may have a form as shown in FIG. 37, for example. A drainage section 1913 shown in FIG. 37 is provided in the bathtub 1910. The drainage section 1913 has a configuration in which an opening 1913A formed at the bottom of the seat section 1911 is closed by a float valve 1913B. The float valve 1913B can close the opening 1813A with water pressure when hot water is stored in the bathtub 1910. The float valve 1913B is connected via a chain to a wall-mounted operating lever 1913C. Float valve 1913B opens opening 1913A by operating control lever 1913C. The float valve 1913B with the opening 1913A open maintains that state due to buoyancy. Float valve 1913B closes opening 1913A again when hot water in bathtub 1910 is discharged.

Finally, main embodiments of the present disclosure are shown below.
[1]
It has a seat part made of a sheet that can be hung from multiple places on the upper edge,
The seat part is a bathtub in which the lower surface contacts the floor when hot water is stored.
[2]
The bathtub according to [1] above, wherein the seat part is suspended at at least three places on the upper edge thereof, and the central lower surface contacts the floor when hot water is stored.
[3]
The bathtub according to any one of [1] and [2] above, further comprising a reinforcing portion that is provided along the upper edge of the seat and that reinforces the upper edge of the seat.
[4]
The bathtub according to any one of [1] to [3] above, wherein the upper edge is in a stretched state when hot water is stored.
[5]
A bathroom in which the bathtub according to any one of [1] to [4] above is attached.

1,201,301,401...Bathroom, 10,510,610,810,910,1310,1410,1510,1610,1710,1810,1910...Bathtub, 11,1311,1411,1511,1611,1711,1811, 1911... Sheet part, 11A... Folded part (reinforced part), 12... Rope (reinforced part), F... Floor

Claims (5)

It has a seat made of sheet that can be hung from multiple locations on the upper edge,
The seat part is a bathtub in which the lower surface contacts the floor in a state where hot water is stored. 2. The bathtub according to claim 1, wherein the seat part is suspended at at least three places on the upper edge thereof, and the lower center surface of the seat part contacts the floor when hot water is stored. The bathtub according to any one of claims 1 and 2, further comprising a reinforcing part provided along an upper edge of the seat and reinforcing the upper edge of the seat. The bathtub according to any one of claims 1 and 2, wherein the upper edge is in a stretched state when hot water is stored. A bathroom in which the bathtub according to any one of claims 1 and 2 is attached.

Images