JP2000074407A - Bathroom unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly discharge hot water from a water discharging part by arranging a hot water storage tank in contact with a rear surface space of a bathtub separate from a waterproof pan in a bathroom, and connecting piping for supplying hot water of a water heater to the tank. SOLUTION: A hot water storage tank 42 is placed on a tank placing portion 41 on an upper surface of a rising part 40. Connecting piping 46 of a part of piping for supplying hot water to the tank 42 is extended via a joint 48 at a lower part of the tank 42. Meanwhile, piping 50 in a bathroom for guiding hot water of the tank 42 to a water plug is extended from an upper part of the tank 42. A rising part 53 is provided at a part disposed at a rear side space of a peripheral wall of the bathtub, and a piping connecting opening 54 is formed at its upper surface. Ends of main piping 60 for supplying water and main piping 62 of a primary side for supplying hot water are respectively disposed at lower part of the opening 54, and the ends are respectively connected to ends of the connecting pipings 52 and 46.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom unit, and more particularly to a bathroom unit having a hot water storage tank for temporarily storing hot water from a water heater, keeping the temperature of the hot water, and supplying the hot water to a water discharge section in the bathroom.

[0002]

2. Description of the Related Art Hot water is supplied to a water faucet such as a faucet in a bathroom.
Conventionally, it has been performed by boiling hot water in a water heater and sending it through a hot water supply pipe. By the way, such a water heater is usually installed far away from the water discharge section of the bathroom, generally outside the kitchen. Therefore, when trying to discharge hot water from the water discharge section of the bathroom, first, in a long pipe. Cool, cold water comes out.

[0003] Moreover, it takes time for the water heater to ignite and boil the hot water, and during this time, cold water continues to flow out of the water discharge section. Therefore, the user has to wait for a long time until the hot water comes out of the spout section, feeling frustrated during this time, and the cold water spouted from the spout section during that time is water that the user does not seek and should be discarded as it is And a lot of death turns into water. This problem occurs not only when water is simply discharged from a bathroom, but also when water is discharged from a vanity or other water discharge part.

[0004] For this reason, a hot water storage tank for temporarily storing hot water sent from a hot water supply device is provided near the water discharge section, and when the water discharge section performs a water discharge operation, the hot water in the hot water storage tank is supplied. There has been proposed an instant hot water supply apparatus that immediately discharges hot water from a water discharge section. However,
In the case of providing a hot water storage tank in a bathroom, the location and structure of the hot water storage tank are problematic.

Therefore, it has been conventionally proposed to dispose such a hot water storage tank above the ceiling of a bathroom unit (JP-A-7-275151). FIG. 6 shows an example. In the figure, reference numeral 200 denotes a bathtub installed in the bathroom, and 202 denotes a faucet in the bathroom, which discharges water, hot water or a mixture thereof from a water discharge pipe 204 or a shower head 206.

[0008] Reference numeral 208 denotes a hot water storage tank for temporarily storing hot water from a water heater, which is disposed together with the ventilator 210 and the like behind the ceiling of the bathroom unit. The hot water storage tank 208 is connected to a hot water supply pipe 212 for supplying hot water from the hot water supply device to the hot water storage tank 208. A pipe 214 for leading to 202 extends,
The pipe 214 is connected to the faucet 202.

[0007]

However, when the hot water storage tank 208 is disposed above the ceiling, the length of the pipe from the hot water storage tank 208 to the faucet 202, that is, the water discharge part in the bathroom becomes long, and the water discharge part becomes large. In addition to the problem that the cold water cooled inside the long pipe 214 comes out first when trying to take out hot water, if the long pipe is unnaturally set up and installed under the ceiling that is not necessary originally In addition, various devices are often installed above the ceiling, and therefore the hot water storage tank 20
8 is difficult to secure.

In addition, when the hot water storage tank 208 is disposed above the ceiling as described above, there is a problem that the temperature of the hot water storage tank 208 is low and the heat retention of the hot water storage tank 208 is poor, and the hot water in the tank is easily cooled. In particular, when the hot water storage tank 208 is not used for a long time,
If the power of the internal heater is turned off, the water in the hot water storage tank 208 easily freezes, which may cause the hot water storage tank 208 to be damaged.

In addition, the hot water storage tank 2
08, it is necessary to provide a water receiver 209 thereunder, and when a large amount of water leaks from the connection part with the hot water storage tank 208 or the pipe, this is received by the water receiver 209. In particular, when the bathroom is on the second floor or the like, the water overflowing from the water receiver 209 may flow downstairs and wet household items and tools.

As a method of preventing freezing of the water inside the hot water storage tank 208, it is conceivable to provide a water drainage stopper in the hot water storage tank 208 and to drain the water inside the hot water storage tank 208. Is located at
There is a problem that the work for draining the water is also difficult.

[0011]

The bathroom unit of the present invention has been devised to solve such a problem. According to a first aspect of the present invention, a hot water storage tank for temporarily storing hot water sent from a water heater is provided in a peripheral part of a bathtub in a bathroom and separate from a waterproof pan constituting a floor of the bathroom. A pipe for supplying hot water from the water heater to the hot water storage tank is connected to the hot water storage tank, and a pipe for guiding hot water from the hot water storage tank to a water discharge section in the bathroom is connected to the hot water storage tank. It is characterized by having done.

A second aspect of the present invention is the bathroom unit according to the first aspect, wherein the end portion of the waterproof pan on the washing tub side of the mounting portion of the bath tub and the end portion of the bath tub on the foot side thereof are provided with a bath tub apron. Characterized in that the hot water storage tank is disposed on the back side of the hot water storage tank.

According to a third aspect of the present invention, in the bathroom unit according to the second aspect, the connecting pipe extending from the hot water storage tank to the outside of the bathroom and connecting the hot water storage tank to the primary pipe is connected. The pipe connection opening is an end on the head side of the bathtub opposite to the hot water storage tank and the end of the mounting portion of the bathtub in the waterproof pan opposite to the hot water storage tank, and a peripheral wall of the bathtub. And a portion located on the back side of the bathtub apron.

According to a fourth aspect of the present invention, a hot water storage tank for temporarily storing hot water sent from a water heater is formed separately from a waterproof pan in the bathroom and constituting a floor of the bathroom. Arranged in the internal space of the counter provided on the waterproof pan, a pipe for supplying hot water from the water heater to the hot water storage tank is connected, and the hot water in the hot water storage tank is guided to a water discharge section in the bathroom. A pipe is connected to the hot water storage tank.

According to a fifth aspect of the present invention, in the bathroom unit according to any one of the first to fourth aspects, a water drainage pipe extends from the hot water storage tank into the bathroom, and a water drainage stopper is provided at an end of the water drainage pipe. It is characterized by having.

[0016]

As described above, in the bathroom unit according to the first aspect of the present invention, the hot water storage tank is disposed in the back of the bath tub, which is separate from the waterproof pan, in the bathroom. In this bathroom unit, the hot water storage tank can be positioned as close as possible to a water discharge section such as a faucet in the bathroom. The time lag can be reduced as much as possible when water is to be discharged, and the hot water can be quickly discharged from the water discharge section.

Accordingly, the user does not need to wait for a long time until hot water comes out of the water discharging section. In addition, it is possible to solve the problem that the cold water flows out of the water discharge section until the hot water comes out, so that the cold water becomes dead water and is discarded.

Further, the shower is used several times during bathing, and the cold water sandwich phenomenon that occurs each time and the temperature change that occurs when two or more hot tap water are simultaneously discharged can be eliminated by mixing and relaxing the hot water storage tank. it can.

In the case of the bathroom unit according to the first aspect,
Longer pipes do not need to be set up and installed above the ceiling as in the conventional bathroom unit shown in FIG. 6, and a large space for installing a large hot water storage tank in a complicated place behind the ceiling is required. Is no longer necessary.

In the case of the bathroom unit of the first aspect, the hot water storage tank is disposed in the space behind the bathtub, and in this case, the space that is conventionally the dead space behind the bathtub can be effectively utilized. Accordingly, the installation of the hot water storage tank can prevent the bathroom from becoming complicated or the bathroom from becoming narrow.

This bathroom unit has the following advantages. In other words, since the hot water storage tank is arranged in the bathroom, the ambient temperature of the hot water storage tank is high, and the hot water storage tank has good heat retention properties. In the event that water leaks from a part, etc., the water leaks onto the waterproof pan in the bathroom. In addition, there is an advantage that a water receiver is not required unlike the case where a hot water storage tank is provided above the ceiling.

According to a second aspect of the present invention, the hot water storage tank is disposed at an end of the mounting portion of the bathtub on the washing side and at an end of the foot of the bathtub, behind the bathtub apron. Usually, the faucet provided in the bathtub is arranged on the foot side of the bathtub. Therefore, according to the second aspect, the hot water storage tank can be positioned as close as possible to the bathtub faucet, and the hot water storage tank can be positioned as close as possible to the faucet on the washing area side. it can. Therefore, the hot water stored in the hot water storage tank can be quickly supplied to the faucets.

According to a third aspect of the present invention, in the bathroom unit, a pipe connection opening for connecting the connecting pipe extending from the hot water storage tank and the primary pipe on the primary side is provided on the washing pan side of the bathtub mounting part in the waterproof pan. In the case of the bathroom unit according to claim 3, the end portion and the end portion of the bathtub head side opposite to the hot water storage tank are provided on a peripheral wall portion of the bathtub and a portion located behind the bathtub apron. When the bathroom unit is installed, the hot water storage tank and the connecting pipe are previously assembled to the bathroom floor or the like, and then the hot water storage tank is connected to the primary pipe by the connection work through the pipe connection opening. It can be.

In addition, according to the third aspect, the dead space in the bathroom unit can be effectively used as a work space for connecting the pipes or as a work space for maintaining the connection. In addition, when performing the pipe connection work or the maintenance work of the pipe connection portion, by keeping the bathtub apron in a detached state, the work can be easily performed from the washing place side.

Further, according to the third aspect, the hot water storage tank can be concealed by the bathtub apron, and the aesthetic appearance in the bathroom can be maintained well.

According to a fourth aspect of the present invention, in the bathroom unit, a hot water storage tank is provided in the bathroom and in an internal space of a counter separate from the waterproof pan, and piping is connected to the hot water storage tank. Also in the bathroom unit of the present invention, the hot water storage tank can be disposed by effectively utilizing the space which has been a dead space in the conventional bathroom unit, and the hot water storage tank can be concealed by the counter. it can.

According to a fifth aspect of the present invention, a water drainage pipe is extended from a hot water storage tank into a bathroom, and a water drainage stopper is provided at an end of the water drainage pipe. Even when the hot-water storage tank is not used for a long period of time, the hot-water storage tank can be opened even if the heater of the hot-water storage tank is turned off for a long time by opening the drain plug and draining water from the hot-water storage tank. Can be prevented from being damaged by freezing of water.

In the bathroom unit of the present invention, the power supply cord extending from the heater of the hot water storage tank is made to penetrate the wall, floor and the like of the bathroom in a watertight manner, and is connected to the power supply via an insulating transformer. Can be made.

Furthermore, in this case, the power transformer can be arranged behind the ceiling. The insulating transformer is a small one, and there is no inconvenience that the insulating transformer occupies a large space above the ceiling even when it is arranged above the ceiling.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the interior of the bathroom, in which 10 is a waterproof pan, 12 is a wall panel, 14 is a ceiling panel,
The floor, wall and ceiling of the bathroom are constituted by the waterproof pan 10, the wall panel 12 and the ceiling panel 14. The waterproof pan 10 has a washing place 16 and a bathtub mounting portion 18, and a bathtub 20 which is separate from the bathtub 20 is mounted on the upper surface of the bathtub mounting portion 18. Here, a horizontal handrail portion 24 is formed integrally with the bathtub 20 at the upper end of the peripheral wall portion 22. A bathtub faucet (water spouting section) 26 is provided at a portion of the handrail section 24 on the foot side of the bathtub 20.

On the washing pan 16 side of the waterproof pan 10, a counter 28 separate from the counter is provided in contact with the wall panel 12. In addition, a washing faucet (water spouting part) 30 is provided in front of the counter 28.

Further, the shower head 32
The shower head 32 is connected to the washing faucet 30 via a shower hose 34.
Reference numeral 36 denotes a drain port provided in the waterproof pan 10.

As shown in FIG. 3, the waterproof pan 10 is provided with a ridge 38 for draining along the boundary between the washing place 16 and the bathtub mounting portion 18. Further, the end of the bathtub mounting portion 18 of the waterproof pan 10 on the washing place 16 side and the bathtub 20
The foot side end, that is, the end on the side of the bathtub faucet 26,
A triangular cylindrical rising portion 40 is provided in a portion of the bathtub 20 located in the back side space of the peripheral wall portion 22, and an opening 43 is formed on an upper surface thereof, and the opening 43 constitutes a tank mounting portion 41. It is closed with a removable lid.

Reference numeral 42 denotes a hot water storage tank for temporarily storing hot water sent from the water heater, and an electric heater 44 for keeping the temperature is provided inside. In this example, the hot water storage tank 42 is mounted on the tank mounting portion 41 on the upper surface of the rising portion 40. At the lower part of the hot water storage tank 42, a connecting pipe 46 forming a part of a pipe for supplying hot water to the hot water storage tank 42 extends through a joint 48. On the other hand, from the top of the hot water storage tank 42, the hot water storage tank 42
A pipe 50 in the bathroom for guiding the hot water to the faucets 26, 30 extends.

In FIG. 3, reference numeral 52 denotes a connecting pipe forming a part of a water supply pipe, which is connected to a pipe in the bathroom via a joint 48, that is, a pipe 51 for guiding water to each of the faucets 26 and 30. It is connected.

The bath tub mounting portion 18 of the waterproof pan 10 also has a washing area 16 as shown in FIGS.
And the end on the head side of the bathtub 20, that is, the end opposite to the tank mounting portion 41 (hot water storage tank 42) and located in the space behind the bathtub peripheral wall 22. A rising portion 53 having the same shape as the rising portion 40 is provided, and a pipe connection opening 54 is formed on the upper surface thereof. The pipe connection opening 54 has a plate-like and planar triangular shape. It is closed watertight through a packing 58 by a removable lid 56. This lid 56 also forms a part of the bathroom floor.

Under the pipe connection opening 54, the ends of a primary pipe 60 for supplying water and a primary pipe 62 for supplying hot water are located. Each end is connected to each end of the connecting pipes 52 and 46.

The pipe connection opening 54 is used for connection between pipes and maintenance work of the connection. By forming such a pipe connection opening 54, the pipe connection opening 54 is formed. Connection work or maintenance work of the connection part can be easily performed.

A pair of rising portions 40 and 53 provided at the end of the bathtub placing portion 18 on the washing place 16 side, that is, the opening 4
3. The tank mounting portion 41 and the pipe connection opening 54 are respectively located on the back side of the apron 64 of the bathtub 20, and are normally concealed by the apron 64 (see FIG. 1).

In this embodiment, as is clear from the above description, the hot water supply source pipe 62 and the connecting pipe 46 are entirely connected to the hot water storage tank 42 by a pipe 66 for supplying hot water from the water heater.
Is composed. In addition, the original pipe 60 and the connecting pipe 52
Constitutes a water supply pipe 68 outside the bathroom.

As shown in FIG. 3, the hot water storage tank 42
A power cord 70 is provided from an electric heater 44 provided inside.
Extends outside the hot water storage tank 42, and the power cord 70 penetrates the wall panel 12 through the bushing in a watertight manner, and is connected to a power supply via an insulating transformer 72 disposed behind the ceiling as shown in FIG. ing.

In this embodiment, it is possible to use a small one for the insulating transformer 72, so that there is no inconvenience that the insulating transformer 72 occupies a large space above and below the ceiling. In FIG. 1, reference numeral 84 denotes an inspection cover provided on the ceiling panel 14.

In this embodiment, as shown in FIG. 3, a drain pipe 74 extends from the lower part of the hot water storage tank 42 in the room.
6 are provided.

According to the bathroom unit of the present embodiment as described above, the hot water storage tank 42 can be disposed at a position as close as possible to the water discharge section such as the bathtub faucet 26 and the washing faucet 30 in the bathroom. Therefore, the time lag can be reduced as much as possible when the hot water is to be discharged from the water discharge section in the bathroom, and the hot water can be quickly discharged from the water discharge section. Therefore, the user does not need to wait for a long time until the hot water comes out of the water discharging section. In addition, it is possible to solve the problem that the cold water flows out of the water discharging section until the hot water comes out, so that the cold water becomes dead water and is discarded.

Further, when the shower is used several times during bathing, the cold water sandwich phenomenon that occurs each time and the temperature change that occurs when two or more hot water sources are simultaneously discharged are used as the hot water storage tank 42.
Can be eliminated by relaxing the mixing.

Further, according to this bathroom unit, it is not necessary to erect a long pipe up to the ceiling as in the conventional bathroom unit shown in FIG. 6 and to construct a large hot water storage tank in a complicated place behind the ceiling. It is not necessary to secure a large space for installation.

According to this bathroom unit, the hot water storage tank 4
Since the space 2 is disposed in the space behind the bathtub 20, it is possible to effectively use the space which has been a dead space on the back side of the bathtub 20 in the past, and accordingly, the hot water storage tank 4
The installation of 2 can prevent the bathroom from becoming complicated or the bathroom from becoming narrow.

Further, in the case of the bathroom unit of this embodiment, since the hot water storage tank 42 is provided in the bathroom,
In addition to the high ambient temperature of 2 and the good heat retention of the hot water storage tank 42, if water leaks from the hot water storage tank 42 or the connection with the piping, etc., the water leaks onto the waterproof pan 10 in the bathroom, Even when the bathroom is on the second floor, etc., there is no inconvenience that household furniture and the like downstairs are flooded by the water leakage, and further, unlike the case where a hot water storage tank is provided above the ceiling, a water receiver is not required. .

Further, according to the bathroom unit of this embodiment, the hot water storage tank 42 can be positioned as close to the bathtub faucet 26 as possible by disposing the hot water storage tank 42 at the foot of the bathtub 20. The hot water storage tank 42 can be located close to the washing faucet 30. Therefore, the hot water stored in the hot water storage tank 42 can be quickly supplied to the faucets 26, 30.

According to the bathroom unit of this embodiment, since the pipe connection opening 54 is provided, the hot water storage tank 42 and the connecting pipes 46 and 52 are previously assembled to the bathroom floor or the like when the bathroom unit is constructed. After that, the hot water storage tank 42 and the primary pipes 60 and 62 can be connected by the connection work through the pipe connection opening 54.

In addition, the dead space in the bathroom unit can be effectively used as a work space for connecting pipes or as a work space for maintaining the connection. In addition, when performing the pipe connection work or the maintenance work of the pipe connection part, the apron 64 of the bathtub 20 is used.
Can be easily removed from the washing place 16 side, and the hot water storage tank 42 can be concealed by the apron 64 of the bathtub 20 at normal times, and A good appearance can be maintained.

In the bathroom unit of this embodiment, the hot water storage tank 42
The hot water storage tank 42 is provided with a water drainage stopper 76. Therefore, for example, when the hot water storage tank 42 is not used for a long period of time, the water drainage stopper 76 is opened to drain water from the hot water storage tank 42, so that the electric heater Even if the power supply of the power supply 44 is turned off for a long time, there is no possibility that the hot water storage tank 42 will be damaged by freezing of water therein.

FIGS. 4 and 5 show another embodiment of the present invention. In FIG. 4, reference numeral 28 denotes a counter separate from the waterproof pan 10 and provided on the waterproof pan 10, and has a top plate 78 and a front plate 80. In this example, the hot water storage tank 42 is provided in the bathroom using the internal space of the counter 28. Specifically, as shown in FIG. 5, the hot water storage tank 42 is placed on the waterproof pan 10 in the internal space of the counter 28.

From the lower part of the hot water storage tank 42, a drain tube 74 extends in the bathroom, and a water drain plug 76 is provided at the end thereof.

In FIG. 5, reference numeral 82 denotes a lid for closing the opening for underfloor inspection in a watertight manner. The other points are the same as those in the embodiment of FIG. 1, and the same parts are denoted by the same reference numerals.

As described above, according to the bathroom unit of the present embodiment, the hot water storage tank 42 is disposed in the internal space of the counter 28, and the hot water storage space is effectively utilized by utilizing the space which has conventionally been a dead space in the bathroom unit. The tank 42 can be provided, and the hot water storage tank 42 can be provided in a concealed state by the counter 28. In addition, when performing the pipe connection work or the maintenance work of the pipe connection part, the work can be easily performed from the washing place 16 side by removing the top plate 78 or the front plate 80 of the counter 28 or a part thereof.

Further, in the bathroom unit of this embodiment, the draining operation of the hot water storage tank 42 can be easily performed from the washing place 16 side.

Although the embodiments of the present invention have been described in detail above, these are merely examples, and the present invention can be applied to various types of bathroom units, for example, without departing from the scope of the invention. It can be configured with various modifications.

[Brief description of the drawings]

FIG. 1 is a diagram showing the interior of a bathroom unit according to an embodiment of the present invention.

FIG. 2 is a plan view and a sectional view of the waterproof pan of FIG.

FIG. 3 is a partially enlarged perspective view showing the arrangement of the hot water storage tank and the periphery of a pipe connection opening in FIG. 1;

FIG. 4 is a view showing the interior of a bathroom unit according to another embodiment of the present invention.

5 is a diagram showing a hot water storage tank disposing portion and its peripheral portion in the embodiment of FIG. 4;

FIG. 6 is a diagram showing an example of a conventional bathroom unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Waterproof pan 12 Wall panel 16 Washing area 18 Bathtub mounting part 20 Bathtub 22 Perimeter wall part 26 Bathtub faucet (water spouting part) 28 Counter 30 Washing place faucet (water spouting part) 42 Hot water storage tank 46, 50, 51, 52, 66, 68 Piping 54 Piping connection opening 60, 62 Main piping 64 Bath apron 74 Drain pipe 76 Drain plug

Claims (5)

[Claims] 1. A hot water storage tank for temporarily storing hot water sent from a water heater is provided in a space behind a peripheral wall portion of a bathtub in a bathroom and separate from a waterproof pan constituting a floor of the bathroom. And a pipe for supplying hot water from the water heater to the hot water storage tank is connected, and a pipe for guiding hot water from the hot water storage tank to a water discharge section in a bathroom is connected to the hot water storage tank. Bathroom unit. 2. The bath unit according to claim 1, wherein the water storage pan has an end on a washstand side of a mounting portion of the bathtub in the waterproof pan and an end on a foot side of the bathtub, and the hot water storage is located behind a bathtub apron. A bathroom unit with a tank. 3. The bathroom unit according to claim 2, wherein the hot water storage tank-side connecting pipe extending from the hot water storage tank to the outside of the bathroom is connected to a primary side main pipe. A part on the head side of the bathtub opposite to the hot water storage tank and an end on the washing place side of the mounting part of the bathtub in the waterproof pan, the peripheral wall part of the bathtub and the bathtub apron. A bathroom unit provided on a portion located on the back side of a bathroom. 4. A hot water storage tank for temporarily storing hot water sent from a water heater is provided separately from a waterproof pan in a bathroom and constituting a floor of the bathroom and provided on the waterproof pan. Disposed in the internal space of the counter, and connected to a pipe for supplying hot water from the water heater to the hot water storage tank,
A bathroom unit, wherein a pipe for guiding hot water of the hot water storage tank to a water discharge section in the bathroom is connected to the hot water storage tank. 5. The bathroom unit according to claim 1, wherein a drain tube is extended from the hot water storage tank into the bathroom, and a drain plug is provided at an end of the drain tube. Bathroom unit.