Footbath method and footbath device

Abstract

To provide a convenient footbath method and a footbath device.SOLUTION: A bag 20 having an opening formed in an upper part such that a human foot HF can be inserted thereinto and capable of storing source water O is attached to a heating water tank 10 having an open upper side. Water W is supplied into the heating water tank 10 after or prior to attachment of the bag 20 to the heating water tank 10. The source water O stored in the bag body 20 is brought into contact with the water W stored in the heating water tank 10 through the bag body 20, thus causing heat exchange between the source water O and the water W.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a footbath device used for footbathing and a footbath method using the footbath device. [Background technology]

[0002] Footbath devices for warming people's feet have been widely used in the past, and one such footbath device is known from the following Patent Document 1. The footbath device described therein comprises an inner container housed in an outer container and open at the top, a heating element provided on the outer bottom or side of the inner container for heating the hot water contained in the inner container, and a lid covering part of the opening at the top of the inner container, characterized in that the lid is rotatably engaged with a rotating part provided on one side of the top of the inner container and has a protrusion that protrudes toward the inner container and is submerged in the hot water contained within the inner container. This footbath device has the effect of making it easy to put feet in and out and reducing the effort required to supply and drain hot water during use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-151054 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem that the present invention aims to solve is to provide a highly convenient foot bath method and foot bath device. [Means for solving the problem]

[0005] The bathing device of this embodiment is characterized in that a bag body capable of storing a first liquid and having an opening at the top so that a person's feet can be inserted is attached to a container that is open at the top, and a second liquid is supplied to the container after or before the bag body is attached to the container, so that the first liquid stored in the bag body and the second liquid stored in the container come into contact via the bag body, and heat exchange occurs between the first liquid and the second liquid. [Effects of the Invention]

[0006] According to the present invention, a highly convenient foot bath method and foot bath device can be provided. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic plan view showing a heated water tank provided in a footbath device according to a first embodiment. [Figure 2] 1 is a schematic side view showing a heated water tank according to a first embodiment. [Figure 3] FIG. 2 is a schematic side view showing a transport form of the heated water tank according to the first embodiment. [Figure 4] FIG. 1 is a schematic vertical cross-sectional view showing the footbath device according to the first embodiment in use. [Figure 5] FIG. 2 is a diagram for explaining how to use the footbath device according to the first embodiment. [Figure 6] FIG. 2 is a diagram for explaining how to use the footbath device according to the first embodiment. [Figure 7] FIG. 2 is a schematic side view showing a footbath device according to a modified example of the first embodiment. [Figure 8] 10 is a schematic vertical cross-sectional view of a folded portion of a bag body according to a modified example of the first embodiment after the bag body has been attached to a heated water tank. FIG. [Figure 9] FIG. 10 is a diagram illustrating the configuration and usage of a footbath device according to a second embodiment. [Figure 10] FIG. 10 is a schematic front view showing a bag body according to a modified example of the second embodiment. [Figure 11] 10A and 10B are diagrams illustrating a bag body according to a third embodiment. [Figure 12] FIG. 10 is a view for explaining a bag body according to a fourth embodiment. [Figure 13] FIG. 10 is a schematic front view showing a bag body according to a fifth embodiment. [Figure 14] 10 is a view for explaining a state in which a bag body according to a fifth embodiment is used. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this specification and the drawings, components having substantially the same functional configurations are designated by the same reference numerals, and redundant description will be omitted.

[0009] First Embodiment (Overall composition) First, the configuration of the footbath device of this embodiment will be explained. Figures 1 and 2 are a schematic plan view and a schematic side view showing the heated water tank provided in the footbath device of this embodiment. Figure 3 is a schematic side view showing the transport form of the heated water tank of this embodiment. In the following explanation, the upper side in Figure 1 will be referred to as the front of the footbath device, the lower side as the back, and the left and right sides as sides. As shown in Figures 1 and 2, the footbath device 1 of this embodiment (see Figure 4) is provided with a box-shaped heated water tank 10 that is open at the top.

[0010] The heated water tank 10 is configured to be able to store water inside, and has an annular edge 11 located at the top and made of a plastic material or the like, and a bottom 12 located below it and also made of a plastic material or the like, and between the edge 11 and the bottom 12 is a thin, flexible stretchable section 13 made of a waterproof cloth or plastic material or the like, whose length in the vertical direction can be changed.

[0011] A movable plate 111 is provided on the front side of the edge 11. The movable plate 111 has an opening 112 at its front end, forming a grip 114, and as shown in Figure 2, both left and right ends can be rotated by support shafts 113. Therefore, as shown in Figure 3, a user of the footbath device 1 can easily carry the heated water tank 10 by rotating the movable plate 111 upward and gripping the grip 114.

[0012] Legs 14 that support the heated water tank 10 on the installation surface are detachably attached to the underside of both left and right ends of the edge 11. When transporting the heated water tank 10 as shown in Figure 3, the legs 14 can be removed and the extendable section 13 can be retracted in the vertical direction to make the heated water tank 10 compact for transportation, making it easier to carry and store.

[0013] The bottom 12 has a number of raised portions 121 on its upper surface that are designed to resemble the shape of the soles of both human feet, and a partition 122 is provided in the left-right center that protrudes higher than the raised portion 121. The partition 122 is formed so that its vertical length is shorter than the space in question so that it does not completely separate the space that stores water on the left and right sides of the heated water tank 10. This allows the user to intuitively understand how to position their feet when using the footbath device 1.

[0014] A temperature-adjustable heater 123 is provided within the bottom 12, and the heater 123 can heat the water stored in the heated water tank 10 to produce hot water. The bottom 12 is provided with a power cord for energizing the heater and an ON / OFF switch and a temperature setting switch. These are preferably provided on one of the two side surfaces, the front, or the back of the bottom 12. The heater 123 may also be provided on the edge 11. In this case, the edge 11 and the bottom 12 may be connected so that the heater 123 can be energized and a drive signal can be transmitted. Although the heater 123 has been described as being provided on the bottom 12, the expandable portion 13 may be configured as a wall portion having the same thickness as the bottom 12 and the heater 123 may be provided therein, or may be provided inside the partition 122. Furthermore, a temperature display panel capable of displaying the temperature of the stored water or the set temperature may be provided on the edge 11 or the bottom 12.

[0015] Figure 4 is a schematic vertical cross-sectional view showing the footbath device of this embodiment in use. HF in Figure 4 represents a person's feet, W represents water (room temperature water or hot water), and O represents spring water. For the sake of explanation, the legs 14 have been omitted from Figure 4.

[0016] As shown in FIG. 4, the footbath device 1 according to this embodiment further includes a bag 20, which is attached to the heated water tank 10 for use. The bag 20 is a bag-like object that is elongated in the axial direction, has an opening on one longitudinal side (upper side), and is closed on the other side (lower side). It can store a liquid inside, in this embodiment, source water O, such as hot spring water, that contains components beneficial to the human body. The bag 20 is attached to the heated water tank 10 so that its lower portion is accommodated within the heated water tank 10. In this state, the bag 20 is sized so that the user's feet HF can be placed inside it, i.e., immersed in the source water O. For this reason, the bag 20 is preferably made of a resin material, such as polyethylene or polyvinyl chloride, that is flexible, strong, has excellent thermal conductivity, and is watertight. Other examples include fabrics such as waterproof-coated nonwoven fabrics.

[0017] As shown in FIG. 4 , the bag 20 is attached to the heated water tank 10 by folding its upper end (near the opening edge) 21 outward from the heated water tank 10 so as to cover the edge 11 of the heated water tank 10. Attaching the bag 20 in this manner prevents the bag 20 from easily coming off the heated water tank 10. Therefore, from the perspective of ease of attachment, it is preferable that the outer periphery of at least the upper end 21 of the bag 20 be larger than the outer periphery of the edge 11 of the heated water tank 10. When using the footbath device 1, water W is stored in the heated water tank 10 and heated by the heater 123 to turn the water W into hot water, and source water O is stored in the bag 20 attached to the heated water tank 10 to exchange heat with the water W. This allows the user to immerse their feet HF in the source water O that has been heated to a moderate temperature by the hot water W, making it possible to easily provide a footbath using the source water O to users at home, work, public facilities, etc.

[0018] Next, how to use the footbath device 1 according to this embodiment will be explained in detail using Figures 5 and 6. Figures 5 and 6 are diagrams for explaining how to use the footbath device according to this embodiment. Figures 5 and 6 show the footbath device 1 as seen from the side, with only the heated water tank 10 shown in vertical cross section.

[0019] As shown in Figure 5, first, the bag body 20 is attached to the heated water tank 10 from above so as to cover at least the inside of the heated water tank 10. After attachment, a portion of the upper end portion 21 of the bag body 20 is removed from the edge portion 11 of the heated water tank 10, and water is supplied from that portion between the heated water tank 10 and the bag body 20 from, for example, a plastic bottle P or a hose attached to a faucet. The amount of water to be supplied is preferably, for example, about 4 liters (L). However, this is not limited to this amount and can be determined appropriately depending on the size of the heated water tank 10.

[0020] After the water supply, as shown in Figure 6(a), spring water O stored in a storage box 30 such as a bag-in-box is supplied into the bag body 20 using a water supply device 40. The water supply device 40 has a first conduit 41 and a second conduit 42, and is a so-called kerosene pump that uses the siphon principle to suck liquid from the first conduit 41 by performing operations such as repeated compression by a pump 43, introduces the sucked liquid into the second conduit 42, and discharges it from the second conduit 42. A connecting part 44 is provided midway between the first conduit 41 and the first conduit 41, which is detachably connected to the supply port 31 of the storage box 30 by fitting or screwing it on. When supplying water, the supply port 31 and the connecting part 44 are connected, the tip of the first conduit 41 is inserted into the storage box 30, and the tip of the second conduit 42 is inserted inside the bag body 20, and the pump 43 is operated in this state to supply the source water O in the storage box 30 into the bag body 20. The amount of water to be supplied is preferably such that the top of the foot is immersed in the source water O, and is preferably about 4 to 8 liters, for example. However, this is not limited to this amount and may be determined appropriately depending on the size of the heated water tank 10. The source water O may also be supplied directly by tilting the storage box 30, for example.

[0021] After the source water O is supplied, the heater 123 provided on the bottom 12 is driven to heat the water W supplied into the heated water tank 10. This heating converts the water W into hot water, and heat exchange occurs as the water W comes into contact with the source water O via the bag 20. The user then places their feet HF in the bag 20 and immerses their feet HF in the source water O at a moderate temperature. After use, as shown in FIG. 6(b), the upper end 21 of the bag 20 is returned to its original position and the bag 20 is removed from the heated water tank 10. This allows the source water O to be easily removed from the heated water tank 10 and discarded. The water W in the heated water tank 10 may be drained to the outside using the water supply device 40. Alternatively, a certain amount of the water W may be drained using a bucket or tub, and after it becomes light enough to be carried by hand, the heated water tank 10 may be tilted and drained.

[0022] According to the present embodiment described above, not only hot water but also liquids containing ingredients beneficial to the human body, such as spring water O, can be used for the footbath, thereby improving convenience. Furthermore, because the bag 20 stores the spring water O, the spring water O does not mix with the water W in the heated water tank 10, allowing for the use of highly pure spring water O. Even if sebum gets mixed into the spring water O after use, it simply adheres to the bag 20 and does not affect the heated water tank 10. Because the spring water O does not come into contact with the heated water tank 10, the heated water tank 10 is not affected even if the spring water O is, for example, highly acidic or alkaline.

[0023] Furthermore, because the bag 20 stores the source water O, disposing of the source water O can be done simply by removing the bag 20 from the heated water tank 10, which is extremely convenient. Also, the hot water W and the source water O do not mix, and the feet are not immersed in the water W, so the water W can be kept clean. Therefore, the water W can be reused for the next use, which also has the effect of reducing costs. Similarly, the bag 20 can be reused after the source water O has been disposed of, which also reduces costs.

[0024] <First Modification> Fig. 7 is a schematic side view showing a footbath device according to this modified example, and Fig. 8 is a schematic vertical cross-sectional view of the folded-back portion of the bag according to this modified example after the bag has been attached to a heated water tank. For the sake of explanation, the legs 14 have been omitted from Fig. 8.

[0025] As shown in Fig. 7, bag body 20A according to this modification has a string member 22 attached in a loop around the entire periphery of its upper end portion 21. The string member 22 is positioned at the upper end portion 21 of bag body 20, and as shown in Fig. 8, by folding back upper end portion 21 so as to wrap around string member 22, it is attached to bag body 20A in a manner that it is clamped by upper end portion 21. Both ends of string member 22 are exposed to the outside through slits formed in the folded back portion of bag body 20A, and can be fixed to stopper 23 by being inserted into and locked.

[0026] After attaching the bag body 20A to the heated water tank 10, by pulling both ends of the string member 22 via the stoppers 23, the upper end portion 21 of the bag body 20A can be squeezed to reduce its diameter to a value smaller than the outer diameter of the edge portion 11 of the heated water tank 10. Therefore, the upper end portion 21 of the bag body 20A has a diameter that prevents the heated water tank 10 from slipping out, preventing the bag body 20A from falling off the heated water tank 10. Meanwhile, by unlocking the stoppers 23 and loosening the squeezing force applied by the string member 22, the bag body 20A can be easily removed from the heated water tank 10. The folded-back portion of the upper end portion 21 around which the string member 22 is wrapped may be adhered with an adhesive such as glue or tape, or may be heat-sealed.

[0027] <Second embodiment> In the first embodiment, the bag 20 is handled by gripping any part of it, but a gripping portion for the user to grip may also be provided. Figure 9 is a diagram for explaining the configuration and usage method of the footbath device according to this embodiment. In Figure 9, the sides of the heated water tank 10, bag 20B, storage box 30, and water supply device 40 are shown schematically, with only the heated water tank 10 shown in vertical cross section.

[0028] 9, bag body 20B according to this embodiment differs from bag body 20 according to the first embodiment in that it has holes 24. In this embodiment, hole 24 is formed in an oval (elliptical) shape, and a pair of holes 24 are provided facing each other near upper end 21 of bag body 20B. By forming the pair of holes 24, a pair of gripping portions 241 that can be gripped by a user are formed above each of the pair of holes 24 in bag body 20B.

[0029] According to the present embodiment described above, the formation of the grip portion 241 on the bag body 20B makes the bag body 20B easier to handle. For example, a user can easily transport the bag body 20B by gripping the grip portion 241. This makes it easy to supply source water O to the bag body 20B before attaching the bag body 20B to the heated water tank 10, and then attach the bag body 20B to the heated water tank 10. Furthermore, the grip portion 241 allows the user to securely grip the bag body 20B, preventing the bag body 20B from falling due to its weight and resulting leakage of the source water O. Therefore, the source water O can be supplied into the bag body 20B at a location away from the heated water tank 10, and the bag body 20B containing the source water O can be transported to the heated water tank 10 and attached thereto while maintaining that state. Furthermore, when removing the bag body 20B from the heated water tank 10 after use, gripping the grip portion 241 makes removal and transportation easy.

[0030] <Second Modification> Fig. 10 is a schematic front view showing a bag according to this modification. As shown in Fig. 10, bag 20B may be configured as bag 20C in which, instead of a pair of holes 24 and gripping portion 241, a pair of handles 242 facing each other in the front-rear direction are attached to the outer periphery of upper end portion 21 by any fixing method such as heat welding.

[0031] <Third embodiment> In the second embodiment, it has been described that the source water O can be supplied before the bag body 20B is attached to the heated water tank 10, but the source water O may be stored in the bag body 20 in advance. Fig. 11 is a diagram for explaining the bag body according to this embodiment. In Fig. 11, the bag body 20B and the transport box 50 are shown schematically, and only the bag body 20B is shown as seen from the front.

[0032] As shown in FIG. 11 , the bag 20B according to this embodiment contains a removable sealed bag 25 that seals the spring water O inside, i.e., housed separately, resulting in a double-layered bag. The sealed bag 25 has an opening 251 at its upper corner that communicates with the internal space (the space containing the spring water O), and the opening 251 is heat-sealed to prevent leakage of the spring water O. It should be noted that this is not limited to heat welding; a removable cap may be attached to the opening 251 to prevent leakage of the spring water O. When using a footbath device 1 that uses such a bag 20B, after attaching the bag 20B to the heated water tank 10, the sealed bag 25 is torn, for example, by tearing the opening 251, to allow the spring water O inside to flow into the bag 20B.

[0033] According to the present embodiment described above, since the sealed bag 25 is stored in the bag 20B in advance, the user does not need to separately supply the spring water O to the bag 20B, eliminating the need for the water supply work and achieving efficiency. Furthermore, when taking a footbath, the sealed bag 25 is broken after the bag 20B is attached to the heated water tank 10, so that leakage of the spring water O during transportation of the bag 20B can be prevented, and furthermore, since the spring water O is not exposed to the outside air until it is used, it is possible to use clean spring water O with extremely few germs.

[0034] Furthermore, according to this embodiment, a plurality of bags 20B each containing a sealed bag 25 can be stored directly in the transport box 50. Therefore, the user can simply take one of the bags 20B containing the sealed bag 25 from the transport box 50 delivered to their home or the like and attach it directly to the heated water tank 10, which is extremely efficient as it eliminates the need for complicated preparation work such as preparing the storage box 30, water supply equipment 40, etc. at the time of use.

[0035] <Fourth embodiment> In the third embodiment, the sealed bag 25 is housed in the bag body 20B, and the bag has been described as having a double structure, but the bag body may have a single structure and directly store and seal the spring water O. Fig. 12 is a diagram for explaining the bag body according to this embodiment. Fig. 12(a) shows a schematic front view of the bag body according to this embodiment, and Fig. 12(b) shows a schematic view of its longitudinal cross section as seen from the side.

[0036] As shown in FIGS. 12(a) and 12(b), the bag 20D according to this embodiment differs from the bag 20B according to the third embodiment in that, instead of the sealed bag 25, source water O is stored inside the bag 20D, a seal portion 26 extending in the left-right direction is provided at the upper end 21, preferably at the opening edge, and a pair of handles 242 are attached to the outer periphery of the upper end 21 instead of the pair of holes 24 and the grip portion 241. The seal portion 26 is formed by bonding opposing inner circumferential surfaces of the bag 20D by heat welding or the like. Therefore, the internal space of the bag 20D below the portion where the seal portion 26 is formed is defined as a sealed space, and the source water O is stored in this sealed space. Note that the source water O may be supplied into the bag 20D prior to the formation of the seal portion 26 during the manufacturing process of the bag 20D.

[0037] When using a footbath device 1 that uses such a bag 20D, the bag 20D can be opened by, for example, splitting the pair of handles 242 back and forth with a strong force, thereby tearing the sealed portion 26, or by cutting open the sealed portion 26 with a blade such as a cutter or knife, and then attaching the bag 20D to the heated water tank 10. For this reason, it is preferable to design the sealed portion 26 so that it can be torn with a force sufficient to open the bag 20D. In other words, it is preferable to consider the thickness and material of the fabric of the bag 20D so that the fabric of the bag 20D will not tear even if a force stronger than the adhesive strength of the sealed portion 26 is applied. However, this does not apply when cutting open the sealed portion 26 with a blade. It is also preferable to form an area 261 below the sealed portion 26 where the source water O is not present, so that the source water O does not overflow from the bag 20D when the sealed portion 26 is opened.

[0038] According to the present embodiment described above, it is possible to achieve the same effects as those of the third embodiment, and also to reduce costs by eliminating the need for a double-layered bag structure. Instead of the seal portion 26, a sheet-like lid member covering the opening of the bag body 20D may be provided separately from the bag body 20D to seal the spring water O. In this case, it is preferable that the lid member be ripped with a force sufficient to open the bag body 20D, similar to the seal portion 26. The lid member may also be shaped to be cut open using a blade such as a cutter or knife. Instead of the handle 242, a hole 24 and a grip portion 241 may be provided, and the lid member may be positioned below the hole 24.

[0039] <Fifth embodiment> In the third embodiment, the bag body 20B and the sealing bag 25 are described as being separate bodies, but the bag body and the sealing bag may be integrally connected. Fig. 13 is a schematic front view showing the bag body according to this embodiment, and Fig. 14 is a view for explaining the use state of the bag body according to this embodiment.

[0040] 13, bag body 20E according to this embodiment differs from bag body 20B according to the third embodiment in that, instead of sealed bag 25, bag body 20E is formed long in the vertical direction, has upper seal portion 26a extending in the left-right direction at approximately the middle in the vertical direction, and has lower seal portion 26b, also extending in the left-right direction, at its lower end. Similar to seal portion 26 of bag body 20D according to the fourth embodiment, seal portions 26a and 26b are formed by bonding opposing inner circumferential surfaces by heat welding or the like.

[0041] By providing the seal portion 26 at approximately the middle position of the bag body 20E, the lower side of the upper seal portion 26a of the bag body 20E becomes the sealed bag portion 27 in which a sealed space is defined inside and the spring water O is stored, and the upper side of the upper seal portion 26a becomes the storage bag portion 28 in which a storage space is defined inside and has an opening at the upper end portion 21. The storage bag portion 28 is formed to be longer in the vertical direction than the sealed bag portion 27, and is preferably made to be approximately the same size as the bags 20 to 20D according to the above-mentioned respective embodiments.

[0042] As shown in Figure 14, by turning the containing bag portion 28 inside out, the bag body 20E can position the sealed bag portion 27 inside the containing bag portion 28, resulting in a form that is substantially the same as the bag body 20E in which the sealed bag 25 is housed inside as in the third embodiment. When using a footbath device 1 that uses such a bag body 20E, the containing bag portion 28 is turned inside out to position the sealed bag portion 27 inside the containing bag portion 28, and the bag body 20D is then attached to the heated water tank 10, after which the lower seal portion 26b is broken. Note that, during the manufacturing stage of the bag body 20E, the source water O can be supplied into the sealed bag portion 27, which is in an open state, after the upper seal portion 26a has been formed and before the lower seal portion 26b has been formed.

[0043] According to the present embodiment described above, the same effects as those of the fourth embodiment can be achieved, and even if the storage bag portion 28 is accidentally opened, there is no direct effect on the lower seal portion 26b, so the lower seal portion 26b will not be accidentally torn.

[0044] The embodiments of the present invention are presented as examples and are not intended to limit the scope of the invention. These novel embodiments may be embodied in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the inventions and their equivalents as defined in the claims. [Explanation of symbols]

[0045] 1. Foot bath device 10 Heated water tank (container, foot bath) 11 Edge 12 Bottom 20, 20A to 20E Bag body (bag body, second storage bag) 241 Gripping part 242 Handle (grip) 25 Sealed bag (first storage bag) 26 Seal part (sealing part) 27 Sealed bag part (first storage bag) 28 Storage bag section (second storage bag) 50 shipping boxes (storage boxes) W Water (second liquid) o Spring water (first liquid)

Claims

1. a bag body having an opening at its top so that a person's foot can be inserted therein and capable of storing a first liquid is attached to a container having an open top; supplying a second liquid to the container after or prior to attaching the bag to the container; The first liquid stored in the bag and the second liquid stored in the container are brought into contact with each other via the bag, and heat exchange is carried out between the first liquid and the second liquid. A foot bath method characterized by the above.

2. The bag is attached to the container by inserting the bottom of the bag into the container, folding the top of the bag back to the outside of the container so as to cover the edge of the container, and squeezing the opening of the folded bag so that the diameter of the opening becomes smaller.

2. The footbath method according to claim 1.

3. After the bag is attached to the container, the first liquid is supplied into the bag, thereby bringing the first liquid into contact with the second liquid via the bag.

2. The footbath method according to claim 1.

4. the bag body is provided with a sealing portion for sealing the first liquid inside the bag body, By breaking the sealed portion, an opening is formed in the bag body, and the first liquid is exposed to the outside.

2. The footbath method according to claim 1.

5. the bag body includes a first containing bag that seals the first liquid, and a second containing bag that has an opening and can contain the first containing bag, When the bag body is attached to the container, the second containing bag is attached to the container, and the first containing bag is ruptured after or before the attachment, thereby allowing the first liquid to flow into the second containing bag.

2. The footbath method according to claim 1.

6. The first and second containing bags are separated, and the first liquid flows into the second containing bag by tearing the first containing bag.

6. A footbath method according to claim 5.

7. One end of the first containing bag is connected to the second containing bag, The second storage bag is turned upside down so that the first storage bag is positioned within the second storage bag, and the second storage bag in the turned upside down state is attached to the container.

6. A footbath method according to claim 5.

8. A plurality of bags in which the first liquid is sealed are stored in a storage box for transportation, and a user takes out one of the bags from the storage box and attaches it to the container. A foot bath method according to any one of claims 4 to 7.

9. a bag body having an opening at an upper portion thereof so that a person's foot can be inserted therein and configured to store a first liquid; a container that is open at the top and stores a second liquid and is capable of heating the second liquid; Equipped with By attaching the bag to the container, the first liquid and the second liquid come into contact with each other via the bag, and heat exchange occurs between the first liquid and the second liquid. A foot bath device characterized by:

10. A foot bath machine that warms people's feet with stored hot water is provided with a bag body that covers the hot water. A liquid is stored in the bag, and heat exchange occurs between the liquid and the hot water that come into contact with each other via the bag, Immerse the foot in the heat-exchanged liquid. A foot bath method characterized by the above.

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