JP7531789B2 - Toilet unit - Google Patents

Description

The present invention relates to a toilet unit that is installed in a toilet room.

Conventionally, toilet units have been known in which a hand-washing basin is provided on the side wall of a toilet room (see, for example, Patent Document 1). In such toilet units, a drain pipe is connected to the hand-washing basin to direct wastewater from the hand-washing basin downstream, such as to a sewer pipe. Such a drain pipe is provided along the wall surface, and in order to smoothly flow water toward the drainage destination, the drain pipe needs to be inclined to form a drainage gradient.

The pipe support described in Patent Document 1 has multiple pipe support parts that support the drain pipe, and each of the multiple pipe support parts supports the drain pipe at a different height. By attaching such a pipe support horizontally in two places, for example, the drain pipe can be tilted to form a drainage gradient.

Patent No. 6243268

However, when using such pipe supports to form a drainage gradient in the drain pipe of a hand-washing basin, the pipe supports must be fixed to the wall surface so that they remain level, which can make the fixing process complicated. In addition, the thickness of the pipe supports causes the drain pipe to protrude from the wall surface, which can result in a large protrusion from the wall surface on which the drain pipe is installed. Another method is to simply measure the drainage gradient and install the drain pipe along the marking lines of the measured drainage gradient to form the drainage gradient, but this requires measuring the drainage gradient and marking lines, which can reduce workability.

The present invention was made based on the recognition of such problems, and aims to provide a toilet unit that can form an appropriate drainage gradient for the hand-washing basin drain pipe and can improve workability.

In order to achieve the above object, according to one aspect of the present invention, the toilet unit is installed in a toilet room and includes a cabinet installed along a wall surface of the toilet room, a hand washing basin installed above the cabinet, a drain pipe connected to the hand washing basin, and a wall portion provided at a position opposite one side wall of the cabinet, the side wall of the cabinet is provided with a first opening through which the upstream side of the drain pipe passes, and the wall portion is provided with a second opening through which the downstream side of the drain pipe passes and at least a portion of which is lower than the upper end of the first opening, and the drain pipe abuts against the first opening and the second opening, which is lower than the first opening, thereby forming a drainage gradient of the drain pipe.

With this configuration, the drain pipe abuts against the first opening and the second opening, forming a drainage gradient for the drain pipe. This allows for an appropriate drainage gradient to be formed with a simple configuration, and improves the ease of installation of the toilet unit.

In addition, in the toilet unit according to one aspect of the present invention, the upper end of the second opening is preferably lower than the upper end of the first opening.

With this configuration, the upper end of the second opening is lower than the upper end of the first opening, so that when the drain pipe is abutted against the first opening and the second opening, multiple drainage gradients with different angles can be selected and formed. For example, in cases where the horizontal distance between the first opening and the second opening varies depending on the construction site, multiple drainage gradients with different angles can be selected, so that an appropriate drainage gradient can be formed to suit the site.

In addition, in the toilet unit according to one aspect of the present invention, the lower end of the second opening is preferably lower than the lower end of the first opening.

With this configuration, the bottom end of the second opening is lower than the bottom end of the first opening, so when the drain pipe is abutted against the first opening and the second opening, multiple drainage gradients with different angles can be selected from a larger number of options. For example, in cases where the horizontal distance between the first opening and the second opening varies depending on the construction site, multiple drainage gradients with different angles can be selected, making it possible to form an appropriate drainage gradient suited to the site.

In addition, in the toilet unit according to one aspect of the present invention, the drain pipe is preferably in contact with the upper end of the first opening, and the vertical length of the first opening is formed to be greater than the outer diameter of the drain pipe.

With this configuration, when removing the drain pipe for maintenance or other reasons, the drain pipe can be moved downward. This makes it easier to remove the drain pipe and improves maintainability.

According to the present invention, in a toilet unit, it is possible to form an appropriate drainage gradient for the drain pipe of the hand washing basin and improve ease of installation.

1 is an overall perspective view showing a toilet unit according to an embodiment of the present invention; 1 is a front view of a toilet unit according to an embodiment of the present invention as viewed from the side. 1 is a front view of a toilet unit according to an embodiment of the present invention as viewed from the side. 2 is an enlarged perspective view of a first opening and a second opening of a toilet unit according to one embodiment of the present invention; FIG. FIG. 2 is an explanatory diagram showing the installation state of a drain pipe of a toilet unit according to one embodiment of the present invention. FIG. 2 is an explanatory diagram showing the installation state of a drain pipe of a toilet unit according to one embodiment of the present invention. FIG. 2 is an explanatory diagram showing the installation state of a drain pipe of a toilet unit according to one embodiment of the present invention. FIG. 10 is an explanatory diagram showing the installation state of a drain pipe of a toilet unit according to another embodiment of the present invention. FIG. 10 is an explanatory diagram showing the installation state of a drain pipe of a toilet unit according to another embodiment of the present invention. FIG. 10 is an explanatory diagram showing the installation state of a drain pipe of a toilet unit according to yet another embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that in each drawing, similar components are given the same reference numerals and detailed descriptions are omitted as appropriate.

First, with reference to FIG. 1, the overall structure of a toilet unit according to an embodiment of the present invention will be described.
FIG. 1 is an overall perspective view showing a toilet unit according to an embodiment of the present invention.

As shown in FIG. 1, the toilet unit 1 installed in the toilet room includes a hand-washing basin cabinet 10 installed along the side wall surface of the toilet room, a hand-washing basin 20, a water discharge device 30 that discharges washing water into the hand-washing basin 20, a counter 40, and a toilet paper holder 50.

The hand-washing basin 20 and the water discharge device 30 are installed on the upper surface of a counter 40 that is fixed to the side wall surface of the toilet room. The hand-washing basin cabinet 10 is also installed directly below the hand-washing basin 20 via the counter 40.

A toilet paper roll holder 50 is provided on the side of the hand washing basin cabinet 10 (the rear wall side of the toilet room) below the counter 40.
In addition, a lower counter 41 is provided below the counter 40, extending horizontally along the wall surface. A drain pipe 22 and a water supply pipe 32, which will be described later, are provided below this lower counter 41. The drain pipe 22 and the water supply pipe 32 are concealed by a cover 60 so that they are not visible to users.

The toilet unit 1 also includes a rear unit 70 that is installed along the rear wall of the toilet room, and a toilet device 100 that is provided in front of the rear unit 70.

The rear unit 70 has a top panel 72 and a front panel 74, and forms a storage space inside. The top panel 72 and the front panel 74 also conceal the storage space inside.

The front panel 74 can be divided into a central panel 74a and side wall panels 74b, which are provided on the left and right sides of the central panel 74a.

In addition, one of the left and right side wall panels 74b functions as a "wall portion". More specifically, the side wall panel 74b on the side where the hand washing basin 20 is provided functions as a "wall portion". In this embodiment, the left side wall panel 74b when the rear unit 70 is viewed from the front functions as a "wall portion".

The toilet device 100 is a so-called wall-hung toilet that is installed in a floating state above the floor surface, and a frame (not shown) for supporting the toilet device 100 is stored inside the rear unit 70.

Next, with reference to Figs. 2, 3A and 3B, a specific structure of the hand washing basin cabinet and the drain pipe of the toilet unit according to one embodiment of the present invention will be described.
Fig. 2 is a side view of a toilet unit according to an embodiment of the present invention, Fig. 3A is a side view of a toilet unit according to an embodiment of the present invention, with the front panel of the hand basin cabinet and the cover covering the drain pipe removed, Fig. 3B is an enlarged perspective view of a first opening and a second opening of the toilet unit according to an embodiment of the present invention.

As shown in Figures 2, 3A, and 3B, the hand-washing basin cabinet 10 has a front panel 12 that covers the front of the hand-washing basin cabinet 10, and side wall panels 14 that cover the left and right sides of the hand-washing basin cabinet 10. The hand-washing basin cabinet 10 also has a bottom panel 16 that covers the bottom surface of the hand-washing basin cabinet 10. In other words, the hand-washing basin cabinet 10 forms a storage space surrounded by the front panel 12, the side wall panel 14, and the bottom panel 16.

Either one of the left and right side wall panels 14 functions as a "side wall". More specifically, the side wall panel 14 on the side where the rear unit 70 is provided functions as a "side wall". In this embodiment, the right side wall panel 14 when the hand washing basin cabinet 10 is viewed from the front functions as a "side wall".
In addition, the hand washing basin cabinet 10 may be configured to not include at least a part other than the side wall panel 14 that functions as a "side wall."

Here, a water supply pipe 32 that supplies washing water to the water discharge device 30 is connected to the water discharge device 30, and a drain pipe 22 that drains water from the hand washing basin 20 is connected to the drain outlet of the hand washing basin 20. A part of the water supply pipe 32 and a part of the drain pipe 22 are stored inside the hand washing basin cabinet 10. In addition, a drain trap 23 is formed on the upstream side of the drain pipe 22, and this drain trap 23 is stored inside the hand washing basin cabinet 10.

The side wall panel 14 on the rear unit 70 side of the hand washing basin cabinet 10 is provided with a first opening 15 through which the upstream side of the drain pipe 22 passes. The side wall panel 74b on the rear unit 70 side of the hand washing basin cabinet 10 is provided with a second opening 75 through which the downstream side of the drain pipe 22 passes. The first opening 15 and the second opening 75 are formed as a rectangle that is long in the vertical direction when viewed from the front, and are formed to be at least larger than the outer diameter of the drain pipe 22. In other words, when the drain pipe 22 abuts against the upper end of the first opening 15, a space is formed between the lower end of the drain pipe 22 and the lower end of the first opening 15. More specifically, the vertical length of the first opening 15 and the second opening 75 is formed to be, for example, 1.2 to 5.0 times the outer diameter of the drain pipe 22.

The shapes of the first opening 15 and the second opening 75 are not particularly limited, as long as they have at least a portion that can abut the drain pipe 22. For example, the end of the first opening 15 or the second opening 75 may be notched when viewed from the front, or the first opening 15 or the second opening 75 itself may be concave.

In addition, the drain pipe 22 extending from the drain trap 23 is inserted through the first opening 15 and extends downstream along the wall surface of the toilet room. The drain pipe 22 is then inserted through the second opening 75. In other words, the drain pipe 22 is inserted through the first opening 15 and then the second opening 75 toward the downstream side. The drain pipe 22 downstream of the second opening 75 merges with the drainage channel of the toilet device 100 inside the rear unit 70. The drainage channel of the toilet device 100 is connected to a sewer pipe further downstream, and wastewater flowing through the drain pipe 22 is also discharged into the sewer pipe.
In addition, the drain pipe 22 downstream of the second opening 75 may be configured to drain directly into a sewer pipe without merging into the drainage passage of the toilet device 100.

Similarly to the drain pipe 22, the water supply pipe 32 is inserted into the first opening 15 and the second opening 75. More specifically, the water supply pipe 32 extending from the water discharge device 30 is inserted into the first opening 15 and extends upstream along the wall surface of the toilet room. The water supply pipe 32 is then inserted into the second opening 75. In other words, the water supply pipe 32 is inserted into the first opening 15 and then the second opening 75 toward the upstream side. The water supply pipe 32 upstream of the second opening 75 is connected to a stop valve (not shown) inside the rear unit 70.

It is sufficient that at least the drain pipe 22 passes through the first opening 15 and the second opening 75, and the water supply pipe 32 does not have to pass through the first opening 15 and the second opening 75.

Next, the drainage gradient of the drain pipe of the toilet unit according to one embodiment of the present invention will be described with reference to FIGS.
4 to 6 are explanatory diagrams showing the installation state of the drain pipe of the toilet unit according to one embodiment of the present invention.

As shown in Figures 4 to 6, the height position of the upper end of the second opening 75 is lower than the height position of the upper end of the first opening 15. In addition, the height position of the upper end of the second opening 75 is higher than the height position of the lower end of the first opening 15, and the height position of the lower end of the second opening 75 is lower than the height position of the lower end of the first opening 15.

As shown in FIG. 4, an upstream portion of the drain pipe 22 extending along the wall surface abuts against the upper end of the first opening 15, and a downstream portion of the drain pipe 22 abuts against the upper end of the second opening 75. Since the height position of the upper end of the second opening 75 is lower than the height position of the upper end of the first opening 15, a drainage gradient of the drain pipe 22 is formed between the first opening 15 and the second opening 75.

Here, in a toilet unit according to one embodiment of the present invention, as shown in FIG. 5, a portion of the upstream side of the drain pipe 22 extending along the wall surface can be abutted against the upper end of the first opening 15, and a portion of the downstream side of the drain pipe 22 can be abutted against the lower end of the second opening 75. Because the height position of the lower end of the second opening 75 is lower than the height position of the upper end of the first opening 15, a drainage gradient of the drain pipe 22 can be formed between the first opening 15 and the second opening 75.

Furthermore, in a toilet unit according to one embodiment of the present invention, as shown in FIG. 6, a portion of the upstream side of the drain pipe 22 extending along the wall surface can be abutted against the lower end of the first opening 15, and a portion of the downstream side of the drain pipe 22 can be abutted against the lower end of the second opening 75. Because the lower end of the second opening 75 is lower in height than the lower end of the first opening 15, a drainage gradient of the drain pipe 22 can be formed between the first opening 15 and the second opening 75.

As described above, the drain pipe 22 abuts against the first opening 15 and the second opening 75, at least a portion of which is lower than the first opening 15, forming a drainage gradient for the drain pipe 22. Therefore, with a simple configuration, an appropriate drainage gradient can be formed, and the ease of installation of the toilet unit can be improved.

In addition, since the upper end of the second opening 75 is lower than the upper end of the first opening 15, when the drain pipe 22 is abutted against the first opening 15 and the second opening 75, a number of drain gradients with different angles can be selected and formed.
More specifically, for example, a drainage gradient can be formed by abutting the drain pipe 22 against the upper end of the first opening 15 and the upper end of the second opening 75 as shown in Figure 4, and a drainage gradient can be formed by abutting the drain pipe 22 against the upper end of the first opening 15 and the lower end of the second opening 75 as shown in Figure 5, and multiple drainage gradients with different angles can be selected.
This makes it possible to select multiple drainage gradients with different angles, for example, in cases where the horizontal distance between the first opening 15 and the second opening 75 varies depending on the construction site, so that an appropriate drainage gradient can be formed to suit the site.

Furthermore, since the lower end of the second opening is lower than the lower end of the first opening 15, when the drain pipe 22 is abutted against the first opening 15 and the second opening 75, a number of drain gradients with different angles can be selected from a wide range of options and formed.
More specifically, for example, a drainage gradient can be formed by abutting the drain pipe 22 against the upper end of the first opening 15 and the upper end of the second opening 75 as shown in Figure 4, a drainage gradient can be formed by abutting the drain pipe 22 against the upper end of the first opening 15 and the lower end of the second opening 75 as shown in Figure 5, and a drainage gradient can be formed by abutting the drain pipe 22 against the lower end of the first opening 15 and the lower end of the second opening 75 as shown in Figure 6.
This means that, for example, in cases where the horizontal distance between the first opening 15 and the second opening 75 varies depending on the construction site, multiple drainage gradients with different angles can be selected, making it possible to form an appropriate drainage gradient to suit the site.

Furthermore, as shown in Figures 4 and 5, the drain pipe 22 abuts against the upper end of the first opening 15, and the vertical length of the first opening 15 is formed to be larger than the outer diameter of the drain pipe 22, so that the drain pipe can be moved downward when removing the drain pipe 22 for maintenance, etc.
Here, the drain pipe 22 is connected to the hand washing basin 20, which is fixedly installed, from the lower side. Therefore, when removing the drain pipe 22, it is necessary to move the drain pipe 22 downward relative to the hand washing basin 20. According to this configuration, the drain pipe 22 is movable downward at the first opening 15, so that when the drain pipe 22 is moved downward to be removed, the first opening 15 can be prevented from obstructing the movement of the drain pipe 22. Therefore, the drain pipe 22 can be more easily removed, and maintenance can be improved.

Next, a toilet unit according to another embodiment of the present invention will be described with reference to Figures 7 and 8.

In a toilet unit according to another embodiment of the present invention shown in Figures 7 and 8, the height position of the upper end of the second opening 75 is lower than the height position of the lower end of the first opening 15. In other words, the height positions of the upper and lower ends of the second opening 75 are lower than the height positions of the upper and lower ends of the first opening 15.

7, a portion of the upstream side of the drain pipe 22 extending along the wall surface abuts against the upper end of the first opening 15, and a portion of the downstream side of the drain pipe 22 abuts against the upper end of the second opening 75. Since the height position of the upper end of the second opening 75 is lower than the height position of the upper end of the first opening 15, a drainage gradient of the drain pipe 22 is formed between the first opening 15 and the second opening 75.
Also, in Figure 7, a portion of the upstream side of the drain pipe 22 extending along the wall surface can be abutted against the upper end of the first opening 15, and a portion of the downstream side of the drain pipe 22 can be abutted against the lower end of the second opening 75, thereby forming a drainage gradient of the drain pipe 22 between the first opening 15 and the second opening 75.

Furthermore, in a toilet unit according to another embodiment of the present invention, as shown in Figure 8, a portion of the upstream side of the drain pipe 22 extending along the wall surface can be abutted against the lower end of the first opening 15, and a portion of the downstream side of the drain pipe 22 can be abutted against the upper end of the second opening 75.
In addition, in Figure 8, a portion of the upstream side of the drain pipe 22 extending along the wall surface can be abutted against the lower end of the first opening 15, and a portion of the downstream side of the drain pipe 22 can be abutted against the lower end of the second opening 75, thereby forming a drainage gradient of the drain pipe 22 between the first opening 15 and the second opening 75.

As described above, the drain pipe 22 abuts against the first opening 15 and the second opening 75, at least a portion of which is lower than the first opening 15, forming a drainage gradient for the drain pipe 22. This allows an appropriate drainage gradient to be formed with a simple configuration, and improves the ease of installation of the toilet unit.

In addition, since the upper end of the second opening 75 is lower than the lower end of the first opening 15, when the drain pipe 22 is abutted against the first opening 15 and the second opening 75, a number of drain gradients with different angles can be selected and formed.
More specifically, as shown in Figures 7 and 8, the drain pipe 22 is selectively abutted against the upper or lower end of the first opening 15 and the upper or lower end of the second opening 75 to form a drainage gradient, thereby making it possible to select multiple drainage gradients with different angles.
This makes it possible to select multiple drainage gradients with different angles, for example, in cases where the horizontal distance between the first opening 15 and the second opening 75 varies depending on the construction site, so that an appropriate drainage gradient can be formed to suit the site.

Next, referring to Figure 9, we will explain a toilet unit according to yet another embodiment of the present invention.

In a toilet unit according to yet another embodiment of the present invention shown in FIG. 9, the upper end of the second opening 75 is higher than the upper end of the first opening 15. Also, the lower end of the second opening 75 is lower than the lower end of the first opening 15.

9, a portion of the upstream side of the drain pipe 22 extending along the wall surface abuts against the upper end of the first opening 15, and a portion of the downstream side of the drain pipe 22 abuts against the lower end of the second opening 75. Since the height position of the lower end of the second opening 75 is lower than the height position of the upper end of the first opening 15, a drainage gradient of the drain pipe 22 is formed between the first opening 15 and the second opening 75.
Also, in Figure 9, a portion of the upstream side of the drain pipe 22 extending along the wall surface can be abutted against the lower end of the first opening 15, and a portion of the downstream side of the drain pipe 22 can be abutted against the lower end of the second opening 75, thereby forming a drainage gradient of the drain pipe 22 between the first opening 15 and the second opening 75.

As described above, the drain pipe 22 abuts against the first opening 15 and the second opening 75, at least a portion of which is lower than the first opening 15, forming a drainage gradient for the drain pipe 22. This allows an appropriate drainage gradient to be formed with a simple configuration, and improves the ease of installation of the toilet unit.

In addition, since the lower end of the second opening 75 is lower than the upper end of the first opening 15, and the lower end of the second opening 75 is lower than the lower end of the first opening 15, when the drain pipe 22 is abutted against the first opening 15 and the second opening 75, a number of drain gradients having different angles can be selected and formed.
This makes it possible to select multiple drainage gradients with different angles, for example, in cases where the horizontal distance between the first opening 15 and the second opening 75 varies depending on the construction site, so that an appropriate drainage gradient can be formed to suit the site.

In the above-described embodiments, the drain pipe 22 is described as directly contacting the first opening 15 and the second opening 75. However, a member may be provided between the drain pipe 22 and the first opening 15 (second opening 75) so that the drain pipe 22 and the first opening 15 (second opening 75) are indirectly contacting each other. For example, a support part for supporting the drain pipe 22 may be provided on the first opening 15 or the second opening 75 so that the drain pipe 22 contacts the support part, or a buffer part may be provided between the first opening 15 or the second opening 75 and the drain pipe 22 so that the drain pipe 22 contacts the buffer part.

In addition, in each of the above-described embodiments, the hand-washing basin cabinet 10 is described as being provided directly below the hand-washing basin 20 via the counter 40, but, for example, the hand-washing basin cabinet 10 and the counter 40 may be separate. Also, for example, the hand-washing basin cabinet 10 may be provided next to the side of the counter 40.

Furthermore, in each of the above-described embodiments, the side wall panel 74b of the rear unit 70 on the side where the hand washing basin 20 is provided is described as functioning as a "wall portion", but, for example, a configuration in which a flat plate or the like that simply functions as a "wall portion" is provided without providing a rear unit 70 may also be used.

The above describes the embodiments of the present invention. However, the present invention is not limited to these descriptions. Any design modifications made by a person skilled in the art to the above-described embodiments are also included within the scope of the present invention as long as they include the features of the present invention. For example, the shape, dimensions, materials, arrangement, etc. of each element of a toilet unit are not limited to those exemplified, and can be modified as appropriate.
Furthermore, the elements of each of the above-described embodiments can be combined to the extent technically possible, and such combinations are also included within the scope of the present invention as long as they include the features of the present invention.

1 Toilet unit 10 Hand washing cabinet (cabinet)
REFERENCE SIGNS LIST 12 Front panel 14 Side wall panel 15 First opening 16 Bottom panel 20 Hand wash basin 22 Drain pipe 23 Drain trap 30 Water outlet device 32 Water supply pipe 40 Counter 41 Lower counter 50 Paper roll holder 60 Cover 70 Rear unit 72 Top panel 74 Front panel 74a Central panel 74b Side wall panel 75 Second opening 100 Toilet device

Claims (4)

In a toilet unit to be installed in a toilet room,
A cabinet installed along a wall surface of the toilet room;
A hand washing basin installed above the cabinet;
A drain pipe connected to the hand washing basin;
a wall portion provided at a position opposite to one side wall of the cabinet,
The side wall of the cabinet is provided with a first opening through which the upstream side of the drain pipe passes,
The wall portion is provided with a second opening through which the downstream side of the drain pipe is inserted and at least a portion of which is lower than an upper end of the first opening,
A toilet unit characterized in that the drain pipe abuts against the first opening and the second opening, which is lower than the first opening, thereby forming a drainage gradient of the drain pipe. The toilet unit according to claim 1, characterized in that the upper end of the second opening is lower than the upper end of the first opening. The toilet unit according to claim 2, characterized in that the lower end of the second opening is lower than the lower end of the first opening. The toilet unit according to any one of claims 1 to 3, characterized in that the drain pipe abuts against the upper end of the first opening, and the vertical length of the first opening is formed to be greater than the outer diameter of the drain pipe.

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