JP2016007421A - Bathing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathing device that can safely increase temperature of hot water in a bathtub quickly using a small amount of hot water even when a bather is taking a bath.SOLUTION: The bathing device 1 includes: a bathtub 11; a pipe 20 having multiple holes 20a at the lateral side thereof and disposed in the bathtub 11; a hot-water supply pipe 22 for supplying hot water to the pipe 20; and a gas supply pipe 24 for supplying a gas to the pipe 20. The bathing device 1 can switch the state thereof between a first state of supplying hot water to the pipe 20 using the hot-water supply pipe 22 and a second state of supplying the gas to the pipe 20 using the gas supply pipe 24.

Description

  The present invention relates to a bathing apparatus.

  DESCRIPTION OF RELATED ART Conventionally, the bathing apparatus provided with the mechanism which prevents the bather's burn at the time of the hot water supply to a bathtub is known. As a technique for preventing a bather from being burned by hot water, for example, a technique for determining an upper limit temperature of hot water that can be supplied from a hot water outlet and controlling a hot water supply part so as not to supply hot water exceeding the upper limit temperature is known. . In this technique, when the temperature of the hot water in the bathtub is low, even if the temperature of the hot water is increased by hot water supply, the temperature of the hot water can be increased only gradually. For this reason, this technique requires a long time and a large amount of hot water until the hot water temperature is adjusted to an appropriate temperature, and not only provides a satisfactory bathing for bathers, but is also economically inefficient.

  As a technique for solving the above disadvantages, for example, a technique disclosed in Patent Document 1 is known. In Patent Document 1, it is determined whether a bath stretcher on which a bather is placed is present in the bathtub or outside the bathtub, and only when the bath stretcher is outside the bathtub, a temperature suitable for bathing. It is configured so that hotter hot water can be supplied. According to the technique, when the bath stretcher is outside the bathtub, hot water can be supplied into the bathtub, and the hot water in the bathtub can be quickly adjusted to an appropriate temperature with a small amount of hot water.

  In addition, as a technique for solving the above drawbacks, for example, a technique disclosed in Patent Document 2 is also known. In patent document 2, the structure which takes out the water of a bathtub, mixes with the hot water from a heating means, and pours into a bathtub is disclosed. According to the technology, hot water from the heating means can be poured into the bathtub after being lowered to a safe temperature, and the amount of hot water poured into the bathtub is kept small in order to make the hot water temperature in the bathtub appropriate. Can do.

JP 2006-230457 A JP 2007-309615 A

  However, in the structure of patent document 1, when the bather is immersed in the hot water in a bathtub, it cannot respond appropriately to the fall of hot water temperature. For this reason, bathers who want to bathe for a long time may feel cold during bathing. Moreover, in the structure of patent document 2, we are anxious about the structure of the installation which pours the hot water from a heating means into a bathtub at safe temperature becoming complicated.

  In view of the above points, an object of the present invention is to provide a bathing apparatus that can quickly raise the temperature of a hot water in a bathtub with a small amount of hot water even when the bather is immersed in hot water. is there. Moreover, the other object of this invention is to provide the bathing apparatus provided with the above functions without complication.

  In order to achieve the above object, a bathing apparatus according to the present invention includes a bathtub, a pipe provided with a plurality of holes on a side surface, a pipe arranged in the bathtub, a hot water supply pipe for supplying hot water to the pipe, and the pipe. A first state in which hot water is supplied to the pipe using the hot water supply pipe, and a second state in which gas is supplied to the pipe using the air supply pipe. Is configured to be switchable (first configuration). The size of the hole provided in the pipe is preferably a small diameter. Further, the hole provided in the pipe is provided separately from a hot water outlet provided so that hot water of a suitable temperature obtained by mixing high temperature water and low temperature water can be supplied in a large amount to the bathtub, and the size is larger than the hot water outlet. Small is preferable. The appropriate temperature hot water is a hot water having a temperature (for example, 38 ° C. or higher and 42 ° C. or lower) suitable for a bather to immerse in the hot water.

  According to this configuration, it is possible to disperse hot water (hot water hotter than the appropriate temperature hot water) into the bathtub in small amounts. Moreover, the hot water dispersed and put in the bathtub can be diffused by utilizing the gas sprayed from the plurality of holes of the pipe. Furthermore, the temperature of the entire hot water in the bathtub can be increased uniformly by alternately repeating the injection of hot water using a pipe and the generation of bubbles. That is, according to the present configuration, even when there is a bather in the bathtub, it is possible to quickly and safely raise the hot water temperature in the bathtub with a small amount of hot water.

  The bathing apparatus having the first configuration preferably has a configuration (second configuration) further including a control unit that controls switching between the first state and the second state. This configuration is convenient because the pipe can automatically switch between the function of discharging hot water and the function of generating bubbles.

  In the bathing apparatus having the first or second configuration, the hot water supply pipe is connected to one end of the pipe via a first connection, and the other end of the pipe is connected to a second connection. It is preferable that the air supply pipe is connected (third configuration). According to this structure, it is easy to make the structure of the pipe which can exhibit the function of discharging hot water and the function of generating air bubbles into a simple structure.

  In the bathing apparatus having the third configuration, it is preferable that a check valve is provided in the first connection portion and the second connection portion (fourth configuration). According to this structure, it can prevent that water flows backward from a pipe to a hot water supply pipe and an air supply pipe, and can improve a hygiene surface.

  In the bathing apparatus having any one of the first to fourth configurations, the pipe may have a configuration (fifth configuration) arranged at the bottom of the bathtub. According to this configuration, the pipe is unlikely to get in the way.

  In the bathing apparatus having any one of the first to fifth configurations, it is preferable that an inclusion is disposed in the bathtub between the bather and the pipe (sixth configuration). According to this configuration, it is possible to reduce the possibility of the bather being burned by hot water discharged from the plurality of holes of the pipe.

  It is preferable that the bathing apparatus of the sixth configuration further includes a stretcher for placing a stretcher on which a bather is placed, and that the inclusion includes the stretcher (a seventh configuration). According to this configuration, it is possible to provide a bathing apparatus capable of comfortably bathing a person who is inconvenient and needs assistance, such as an elderly person or a disabled person.

  ADVANTAGE OF THE INVENTION According to this invention, even when a bather is immersed in hot water, the bathing apparatus which can raise the hot water temperature in a bathtub quickly with a small amount of hot water can be provided. Moreover, according to this invention, the bathing apparatus provided with the above functions can be provided without complication.

The schematic top view which shows the structure of the bathing apparatus which concerns on embodiment of this invention. The schematic side view which shows the structure of the bathing apparatus which concerns on embodiment of this invention. Schematic which shows the state in which the bather is bathing using the bathing apparatus which concerns on embodiment of this invention. The schematic side view which shows the structure of the pipe with which the bathing apparatus which concerns on embodiment of this invention is provided. The block diagram which shows the structure of the control system with which the bathing apparatus which concerns on embodiment of this invention is equipped in order to raise the hot water temperature in a bathtub. The bathing apparatus concerning the embodiment of the present invention WHEREIN: The flowchart which shows an example of the procedure which raises the hot water temperature in a bathtub in the state where a bather exists in a bathtub.

Hereinafter, a bathing apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the bathing apparatus which concerns on embodiment of this invention is an apparatus suitable for bathing a person (assistance person who needs assistance), such as an elderly person and a physically handicapped person, who is inconvenient and needs assistance. However, the present invention may be applied to a device other than a bathing apparatus suitable for bathing a person who needs assistance.
<Schematic configuration of bathing device>

  First, a schematic configuration of a bathing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a schematic top view showing a configuration of a bathing apparatus 1 according to an embodiment of the present invention. FIG. 2 is a schematic side view showing the configuration of the bathing apparatus 1 according to the embodiment of the present invention. FIG. 3 is a schematic view showing a state where a bather is taking a bath using the bathing apparatus 1 according to the embodiment of the present invention. In addition, in FIG. 3, the one part member which comprises the side surface of the bathing apparatus 1 is abbreviate | omitted so that the state in the bathtub 11 may be understood easily.

  As shown in FIG. 1 to FIG. 3, the bathing apparatus 1 includes a gantry 10 that is fixedly disposed on a floor F, and a bathtub 11 that can be moved up and down with respect to the gantry 10. 1 and 2 show a state where the bathtub 11 is lowered, and FIG. 3 shows a state where the bathtub 11 is raised. 1 and 2, the stretcher T on which the bather M is placed is transferred from the stretcher (not shown) onto the bathtub 11. Moreover, the bather M can bathe in the hot water in the bathtub 11 (bath) in the state where the bathtub 11 shown in FIG.

  A columnar column 12 is erected substantially at the center of the gantry 10 (see, for example, FIG. 2; in FIG. 2, the column 12 is shown by a broken line because it is not originally visible). The column 12 penetrates the bottom wall 11a of the bathtub 11 in a liquid-tight manner. The bathtub 11 can be moved up and down along the column 12 by a lifting device (not shown). In addition, the structure of the raising / lowering apparatus which raises / lowers the bathtub 11 is not specifically limited, For example, the hydraulic apparatus which operate | moves using an electric motor may be utilized.

  A stretcher base 13 having a substantially rectangular shape when viewed from above is fixed to the upper end of the column 12. At both ends in the longitudinal direction of the stretcher base 13 (left and right in FIGS. 1 to 3), horizontal in the width direction of the bathtub 11 (vertical direction in FIG. 1 and direction perpendicular to the paper in FIGS. 2 and 3). A guide rail 14 extending in the direction is provided. The pair of guide rails 14 are arranged in parallel at the same height position.

  On the stretcher base 13, there is provided an auto slide mechanism 15 that can reduce the labor of an assistant when the stretcher T on which the bather M is placed is transferred from the stretcher (not shown) to the bathtub 11. . Since the configuration of the auto-slide mechanism 15 is known, the description thereof is omitted here. The auto slide mechanism 15 may not be provided depending on circumstances.

In addition, the gantry 10 is provided with a positioning guide portion 16 for positioning a stretcher (not shown) laid on the side surface of the bathtub 11 at a predetermined position. Moreover, the operation part 17 for an assistant to input the instruction | indication with respect to the bathing apparatus 1 is provided in the upper edge of the bathtub 11, for example. The operation unit 17 includes, for example, a display panel and operation buttons. The bathing apparatus 1 is provided with a hot water supply apparatus (not shown) for supplying hot water into the bathtub 11. The hot water supply device is a facility that mixes high-temperature water and low-temperature water (for example, tap water) heated by a boiler to obtain appropriate temperature water (for example, hot water having a temperature set by the operation unit 17) and then supplies the hot water to the bathtub 11 Is also included. The appropriate temperature water (appropriate temperature hot water) is discharged into the bathtub 11 from the hot water supply port 18 provided in the upper part of the inner wall of the bathtub 11. The hot water supply port 18 has a relatively large size so that hot water can be stored in the bathtub 11 as quickly as possible.
<Example of bathing flow using bathing equipment>

  Here, the flow example at the time of bathing a person requiring assistance using the bathing apparatus 1 described above will be briefly described.

  First, a person who needs assistance (a bather) is transferred from a bed or the like onto a stretcher T (see FIG. 3) mounted on a stretcher (not shown). Then, the stretcher on which the person requiring assistance is placed is carried by the assistant (not shown) to the bathroom where the bathing apparatus 1 is installed. The assistant uses the positioning guide portion 16 provided on the side surface of the bathing apparatus 1 to place (position) the stretcher at a predetermined position beside the bathing apparatus 1.

  Next, the assistant uses the pair of guide rails 14 and the auto slide mechanism 15 to transfer the stretcher T from the stretcher onto the stretcher base 13. Thereafter, the assistant operates the operation unit 17 of the bathing apparatus 1 to raise the bathtub 11 along the support column 12 to a predetermined position. With the rise of the bathtub 11, the stretcher T can be positioned in the bathtub 11, and the person requiring assistance can be immersed in the hot water in the bathtub 11 (see FIG. 3). In this example, the hot water discharged from the hot water supply port 18 (the above-mentioned appropriate temperature water) is stored in the bathtub 11 before the bathtub 11 is raised. For the operation for storing hot water in the bathtub 11, for example, the operation unit 17 is used.

After bathing, the assistant operates the operation unit 17 to lower the bathtub 11 along the support column 12 to a predetermined position. Then, the assistant uses the pair of guide rails 14 and the auto slide mechanism 15 to transfer the stretcher T from the stretcher base 13 onto the stretcher. This completes the bathing.
<Ingenuity to raise the temperature in the bathtub safely and efficiently>

  By the way, a bather immersed in hot water in the bathtub 11 may request that the hot water temperature be raised according to his / her preference. In addition, when the bathing time becomes longer, the hot water temperature may decrease, and thus it may be necessary to increase the hot water temperature. In addition, for example, in winter, the bather can comfortably bathe if the bath temperature is reduced at the beginning of bathing and the bath temperature is raised during bathing. In these cases, it is necessary to raise the hot water temperature in a state where the bather has bathed in the bathtub 11. If hot hot water (for example, hot water exceeding 42 ° C.) is discharged from the hot water supply port 18 provided in the upper part of the bathtub 11, the bather M may be burned. In addition, if the bather M supplies hot water that does not cause burns (for example, hot water of 38 ° C. or higher and 42 ° C. or lower), a lot of hot water and time are required until the bather M reaches an appropriate temperature. In consideration of such points, the bathing apparatus 1 is devised to raise the hot water temperature in the bathtub 11 safely and efficiently. This will be described below.

  As shown in FIG. 3, a pipe 20 is disposed on the bottom wall 11 a (bottom) of the bathtub 11. The pipe 20 has both a function of discharging hot water and a function of generating bubbles, as will be understood from the content described later. The pipe 20 is provided at a position where it does not interfere with the column 12. In the present embodiment, the number of pipes 20 is one, but a plurality of pipes 20 may be arranged.

  FIG. 4 is a schematic side view showing the configuration of the pipe 20 provided in the bathing apparatus 1 according to the embodiment of the present invention. In FIG. 4, parts other than the pipe 20 are also shown for easy understanding. For example, the pipe 20 made of metal or the like has a cylindrical shape extending straight, and both ends thereof are open. A plurality of small-diameter holes 20a are formed on the side surface of the pipe 20 in a line in the longitudinal direction.

  Note that the number, shape, size, and the like of the holes 20a may be adjusted as appropriate. Moreover, the plurality of holes 20a arranged in the longitudinal direction may not be arranged in a line, and may be arranged in a zigzag, for example. Furthermore, a plurality of rows of holes 20a arranged in the longitudinal direction may be provided. In addition, depending on circumstances, the pipe 20 may have a shape including a bent portion, such as a curved shape, instead of a straight shape. Moreover, the pipe 20 is not limited to a cylindrical shape, For example, a square pipe etc. may be sufficient.

  One end of the pipe 20 is connected to a first connection pipe 21 (an example of the first connection part of the present invention). The first connection pipe 21 penetrates the bottom wall 11a of the bathtub 11 in a liquid-tight manner. Below the bottom wall 11a (outside the bathtub 11), a hot water supply pipe 22 capable of supplying hot water (hot water hotter than the above-mentioned appropriate temperature water) from a hot water supply device (not shown) is connected to the first connection pipe 21. Has been. That is, the hot water supply pipe 22 is connected to the pipe 20 via the first connection pipe 21, and hot water is supplied from the hot water supply pipe 23 to the pipe 20.

  The first connection pipe 21 is provided with a check valve 21a in consideration of hygiene and the like. For this reason, the water in the pipe 20 does not enter the hot water supply pipe 22. A stop cock 25 is provided in the middle of the hot water supply pipe 22. By opening and closing the stop cock 25, the supply and stop of high-temperature water to the pipe 20 can be switched.

  A second connection pipe 23 (an example of the second connection part of the present invention) is connected to the other end of the pipe 20. The second connection pipe 23 penetrates the bottom wall 11a of the bathtub 11 in a liquid-tight manner. An air supply pipe 24 that enables air supply from an air pump (not shown) is connected to the second connection pipe 23 below the bottom wall 11a. That is, the air supply pipe 24 is connected to the pipe 20 through the second connection pipe 23, and air is supplied from the air supply pipe 24 to the pipe 20.

  The second connection pipe 23 is provided with a check valve 23a in consideration of hygiene and the like. For this reason, the water in the pipe 20 does not enter the air supply pipe 24. An air valve 26 is provided in the middle of the air supply pipe 24. The supply and stop of the air to the pipe 20 can be switched by opening and closing the air valve 26.

  In the present embodiment, as a desirable configuration, the pipe 20 is detachably attached to the bottom wall 11 a of the bathtub 11. In addition, as a desirable configuration, the two connection pipes 21 and 23 can be disassembled for cleaning and maintenance.

  FIG. 5 is a block diagram showing a configuration of a control system provided for raising the hot water temperature in the bathtub 11 in the bathing apparatus 1 according to the embodiment of the present invention. As shown in FIG. 5, the bathing apparatus 1 includes a control unit 30 configured by, for example, a microcomputer. The control unit 30 controls each unit of the bathing apparatus 1 in accordance with the instructions input via the operation unit 17 described above.

  The bathing apparatus 1 also includes a temperature sensor 31 that measures the temperature of hot water stored in the bathtub 11. One or more temperature sensors 31 may be provided. Information obtained by the temperature sensor 31 is input to the control unit 30.

  The bathing apparatus 1 includes the hot water supply apparatus 32 for supplying hot water into the bathtub 11 as described above. The hot water supply device 32 can supply hot water having a temperature higher than the appropriate temperature water suitable for bathing by the bather to the hot water supply pipe 22 (resulting in the pipe 20). The control unit 30 controls the hot water supply device 32. A stop cock 25 (see FIG. 4) provided in the middle of the hot water supply pipe 22 is configured by, for example, an electromagnetic valve, and the control unit 30 also controls the stop cock 25. The hot water supply device 32 is not included in the bathing device 1 itself, and may be retrofitted to the bathing device 1.

  The bathing apparatus 1 includes an air pump 33 provided so that air can be supplied to the pipe 20 through the air supply pipe 24. The control unit 30 controls the air pump 33. The air valve 26 (see FIG. 4) provided in the middle of the air supply pipe 24 is configured by, for example, an electromagnetic valve, and the control unit 30 also controls the air valve 26. The air pump 33 is not included in the bathing apparatus 1 itself, but may be retrofitted to the bathing apparatus 1.

  Here, with reference to FIG. 6, an example of a procedure for raising the hot water temperature in the bathtub 11 in the bathing apparatus 1 in a state where the bather M is present in the bathtub 11 will be described.

  For example, when the assistant operates the operation unit 17 to give an instruction to raise the temperature of the hot water in the bathtub 11 to the set temperature T0, the control unit 30 measures the temperature T1 of the hot water in the bathtub 11 at that time. (Step S1). And the control part 30 confirms whether the temperature T1 of the measured hot water is lower than the target temperature T0 (step S2). When the measured temperature T1 is equal to or higher than the target temperature T0 (No in step S2), the controller 30 does not perform the process for increasing the hot water temperature because there is no need to increase the hot water temperature. In addition, when not performing the process for raising hot water temperature, it is preferable to notify that using the display panel etc. which are included in the operation part 17. FIG.

  When the measured temperature T1 is lower than the target temperature T0 (Yes in step S2), the control unit 30 performs a process of opening the stop cock 25, and hot water (for example, hot water exceeding 50 ° C. is preferable from the hot water supply device 32). ) Is supplied toward the pipe 20 (step S4). Thereby, a small amount of hot water is dispersed and discharged from the plurality of holes 20a (see FIG. 4) provided in the pipe 20. If the control part 30 performs the process which opens the stop cock 25, it will confirm whether predetermined time (for example, several seconds etc.) passed (step S4). The control unit 30 performs this confirmation until a predetermined time elapses.

  When the predetermined time has elapsed (Yes in step S4), the control unit 30 performs a process of closing the stop cock 25 and opening the air valve 26 (step S5). By opening the air valve 26, bubbles are ejected (generated) from the hole 20 a provided in the pipe 20. Due to the ejection of the bubbles, the hot water in the bathtub 11 is agitated, and the diffusion of the hot water previously discharged from the pipe 20 is promoted. Due to the diffusion of the hot water, the temperature of the hot water in the entire bathtub 11 can be raised.

  When performing the process of opening the air valve 26, the control unit 30 checks whether or not a predetermined time (for example, several seconds) has elapsed (step S6). Note that the predetermined times in step S4 and step S6 may be the same or different. The control unit 30 performs this confirmation until a predetermined time elapses. When the predetermined time has elapsed (Yes in step S6), the control unit 30 performs a process of closing the air valve 26 (step S7).

  When performing the process of closing the air valve 26, the control unit 30 measures the temperature T2 of the hot water in the bathtub 11 (step S8), and confirms whether or not the temperature T2 has reached the target temperature T0 ( Step S9). When the temperature T2 is lower than the target temperature T0, the process returns to step S3, and hot water is discharged from the pipe 20 again. By repeatedly discharging hot water from the pipe 20 and generating bubbles, the temperature of the entire hot water in the bathtub 11 can be raised uniformly.

  On the other hand, when the temperature T2 has reached the target temperature T0 (Yes in step S9), the controller 30 does not need to raise the hot water temperature in the bathtub 11 any more. Terminate the process.

  According to the present embodiment, a small amount of hot water is dispersed and discharged from the hole 20a of the pipe 20. Since the hot water that has been dispersed and discharged is immediately mixed with the hot water in the bathtub 11, it becomes a safe temperature in a relatively short time. A stretcher T and a stretcher base 13 exist between the pipe 20 and the bather M in the bathtub 11. Also from this point, it is avoided that the bather M is directly exposed to hot water. In addition, the inclusion for avoiding that the bather M is directly exposed to hot water may be arrange | positioned separately. Furthermore, in this embodiment, the hot water supplied in a dispersed manner is diffused by the flow of hot water produced by the generation of bubbles. Therefore, according to the bathing apparatus 1 of this embodiment, the temperature of the whole hot water in the bathtub 11 can be raised to the target temperature safely and quickly by supplying a small amount of hot water (high temperature water).

  Further, according to the configuration of the present embodiment, in the winter season or the like, the hot water in the bathtub 11 is initially set to a lower temperature, and the procedure of raising the hot water temperature when the bather's body is warmed by the hot water is easy. And it can be done safely. For this reason, it is possible to provide a comfortable bathing time for bathers.

Moreover, in this embodiment, what is necessary is just to arrange | position the pipe 20 provided with the function to discharge hot water, and the function to generate a bubble in the bathtub 11, and the structure is simple and does not become complicated. For this reason, the cost required for the apparatus can be suppressed.
<Others>

  The embodiment described above is merely an example of the present invention. The configuration of the embodiment described above may be changed as appropriate without departing from the technical idea of the present invention.

  For example, in the embodiment described above, the pipe 20 is provided on the bottom wall 11 a of the bathtub 11. However, the present invention is not limited to this configuration, and the pipe 20 may be provided on the side wall of the bathtub 11. The pipe 20 is preferably provided at a position lower than the stretcher T.

  In the embodiment described above, air is supplied to the pipe 20. However, the present invention is not limited thereto, and a gas other than air (for example, oxygen alone) may be supplied to the pipe 20.

  Moreover, in embodiment shown above, after the assistant instruct | indicates target temperature T0 via the operation part 17, the bathing apparatus 1 raises the temperature of the hot water in the bathtub 11 automatically to target temperature T0. It was. However, this is only an example. For example, without setting the target temperature in particular, the assistant increases the temperature of the hot water in the bathtub 11 to a desired temperature of the assistant requiring assistance while operating the operation unit 17 and the like while listening to the bather's opinion. It may be.

  In the embodiment described above, the supply and stop of the high-temperature water is switched by opening / closing control of the stop cock 25. However, the present invention is not limited to this. For example, the high-temperature water is controlled by controlling a pump for supplying high-temperature water. It may be configured to switch between supply and stop. In the embodiment described above, the supply and stop of air are switched by opening / closing control of the air valve 26. However, the present invention is not limited to this, and for example, the supply and stop of air are switched by controlling the air pump 33. It is good also as a structure.

  In addition, in the above, the case where the present invention is applied to a bathing apparatus that bathes a person who needs assistance on a stretcher has been shown. Naturally, it may be applied to other bathing apparatuses such as a bathing apparatus.

DESCRIPTION OF SYMBOLS 1 Bathing apparatus 11 Bathtub 13 Stretcher 20 Pipe 20a Hole 21 1st connection piping (1st connection part)
21a Check valve 22 Hot water supply pipe 23 2nd connection piping (2nd connection part)
23a Check valve 24 Air supply pipe 30 Control part M Bather

Claims (7)

A bathtub,
A plurality of holes on the side surface, and a pipe disposed in the bathtub;
A hot water supply pipe for supplying hot water to the pipe;
An air supply pipe for supplying gas to the pipe;
With
It is provided to be switchable between a first state in which hot water is supplied to the pipe using the hot water supply pipe and a second state in which gas is supplied to the pipe using the air supply pipe. Bathing device.   The bathing apparatus according to claim 1, further comprising a control unit that controls switching between the first state and the second state.   The hot water supply pipe is connected to one end of the pipe via a first connection part, and the air supply pipe is connected to the other end of the pipe via a second connection part. The bathing apparatus according to claim 1 or 2.   The bathing apparatus according to claim 3, wherein the first connection portion and the second connection portion are provided with a check valve.   The said pipe is arrange | positioned at the bottom part of the said bathtub, The bathing apparatus in any one of Claim 1 to 4 characterized by the above-mentioned.   The bathing apparatus according to any one of claims 1 to 5, wherein an inclusion is disposed between the bather and the pipe in the bathtub. It is further equipped with a stretcher for placing a stretcher on which bathers are placed,
The bathing apparatus according to claim 6, wherein the inclusion includes the stretcher.

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