JP2009172133A - Apparatus for fine air bubble bath - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for fine air bubble bath, capable of effectively suppressing a cold feeling of a bathtub when a person has a bath, reducing the cost and having a favorable compact property. <P>SOLUTION: This apparatus for fine air bubble bath is provided with a bubble generation means 9A which generates fine air bubbles by foaming detergent solution, a bubble consumption part 9B which has the bathtub W for the fine air bubble bath, and a bubble supply means 431 which supplies fine air bubbles generated by the bubble generation means 9A to the consumption part 9B. The bubble supply means 431 is characterized in having a first discharge means 961 for discharging fine air bubbles provided in the bathtub W and having first discharge ports 9612 and 9613A for discharging the fine air bubbles to the inner wall face of the bathtub W. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fine bubble bathing device using fine bubbles.

A conventional bubble (soap, warm bubble) bathing device (see, for example, Patent Document 1) discharges bubbles for the bathing effect to the bather, and covers the body of the bather with a large amount of foam. It is a warm bubble bathing apparatus that bathes while maintaining a heat-retaining state. In the bubble bathing device of Patent Document 1, an electric heater that heats the bottom and side walls of the bathtub is provided, the bathtub itself is maintained at a predetermined temperature, and the cold feel of the bathtub during bathing is suppressed.
Japanese Unexamined Patent Publication No. 2004-261501 (pages 4-5, FIG. 2)

  In the bubble bathing device of Patent Document 1, it is necessary to provide an electric heater in order to maintain the temperature of the bathtub itself at a predetermined temperature. That is, since the bubbles used in the bubble bathing device of Patent Document 1 are of a general size, the amount of heat (or heat capacity) of the bubbles themselves is small. Therefore, an electric heater is required to maintain the comfort of bubble bathing (a state in which the cold feeling of the bathtub is cool when bathing, a state in which the temperature of the warm foam during bathing is ensured). In addition, related parts such as temperature control during heating by the electric heater and a control unit for controlling the electric heater are also required. For this reason, each part which comprises the bubble bathing apparatus of patent document 1 becomes many, and it is difficult to attain size reduction as the whole apparatus. And the manufacturing cost of an apparatus also becomes high. Moreover, since the bubble bath apparatus of patent document 1 uses the electric heater, an electrical energy is consumed excessively and a running cost also becomes high.

  This invention is made | formed in view of the said actual condition, and makes it a subject to provide the fine bubble bathing device which can suppress the cold touch of the bathtub at the time of bathing effectively, and is advantageous to reduction of cost and compactization.

  The fine bubble bathing apparatus of the present invention comprises a fine bubble generating means for generating fine bubbles by foaming a detergent solution, a fine bubble consuming part having a bathtub for bathing the fine bubbles, and a fine bubble generated by the fine bubble generating means. A fine bubble supply means for supplying the bubbles to the fine bubble consumption unit, the fine bubble supply means being provided in the bathtub and having a first discharge port for discharging the fine bubbles to the inner wall surface of the bathtub. A bubble discharge means is provided.

  According to the fine bubble bathing apparatus of the present invention, by providing the bathtub with the first fine bubble discharge means, the fine bubbles generated from the fine bubble generation means (soap, hot bubbles: bubbles having a temperature suitable for bathing) are removed from the bathtub. The fine bubbles can flow on the inner wall surface (side wall surface and bottom surface) of the bathtub. Thereby, the bathtub can be maintained at a predetermined temperature (a temperature suitable for bathing) using the fine bubbles generated by the fine bubble generating means. Therefore, the cold feeling for a bather at the time of bathing is suppressed effectively. Further, since the fine bubbles (warm bubbles) for maintaining the bathtub at a predetermined temperature through the first fine bubble discharge means are generated by the fine bubble generating means of the fine bubble bathing device, It is not necessary to install a simple heating means (heating mechanism) in the bathtub. Therefore, the number of parts of the entire fine bubble bathing apparatus can be reduced, and it becomes easy to reduce the size, cost and running cost of the fine bubble bathing apparatus.

  The fine bubble supply means of the fine bubble bathing apparatus of the present invention preferably includes a second fine bubble discharge means provided in the bathtub and having a second discharge port for discharging fine bubbles to the body of the bather in the bathtub. Thereby, the fine bubble supply means of the fine bubble bathing apparatus of the present invention includes the second fine bubble discharge means for discharging fine bubbles (warm bubbles) to the bather's body and directly supplies the fine bubbles to the bather's body. can do. Also, the fine bubbles can cover or flow over the bather's body. That is, the fine bubbles are supplied to the bather in the bathtub through the second fine bubble discharge means, and the bather can enjoy the fine bubble bath.

  The inner wall surface of the bathtub of the fine bubble bathing apparatus of the present invention has a side wall surface and a bottom surface, the first fine bubble discharge means includes a plurality of first discharge ports, and the plurality of first discharge ports are the bathtub. It is preferable to disperse | distribute and arrange | position at the side wall surface. The first fine bubble discharge means includes a plurality of first discharge ports, so that the fine bubbles sent from the fine bubble supply means can pass through the plurality of first discharge ports of the first fine bubble discharge means. It is discharged simultaneously on the entire side wall surface, and further flows downward along the side wall surface by gravity, and finally flows on the bottom surface of the bathtub. Thereby, the amount of heat possessed by the fine bubbles is conducted to the side wall surface and the bottom surface of the bathtub, and the inner wall surface of the bathtub can be uniformly and efficiently maintained at a temperature suitable for bathing (predetermined temperature).

  The fine bubble generating means of the fine bubble bathing apparatus of the present invention is preferably provided in the fine bubble consuming part and integrated with the fine bubble consuming part.

  By providing (internally placing) the fine bubble generating means in the fine bubble consuming part, the fine bubble generating means and the fine bubble consuming part can be integrated, and unitization of the fine bubble bathing device is easily realized.

  Moreover, it is preferable that the fine bubble consumption part of the fine bubble bathing apparatus of this invention has a bathtub heat retention mechanism which consists of a fine bubble generation means, transfers the heat discharge | released from a fine bubble generation means to a bathtub, and heats a bathtub.

  The fine bubble consuming unit is provided with a bathtub heat retaining mechanism including fine bubble generating means, so that heat released from the fine bubble generating means can be transferred to the bathtub by a heat transfer method such as heat radiation. That is, in the fine bubble bathing device of the present invention, it is possible to contribute to warming or heat insulation of the bathtub by utilizing the exhaust heat accompanying the generation of fine bubbles in the fine bubble generating means. Efficiency can be further improved.

  The size of the fine bubbles generated by the fine bubble bathing device of the present invention is preferably 5 to 200 μm. More preferably, it is 10-95 micrometers. More preferably, it is 15-90 micrometers. The volume ratio of liquid: gas contained in the fine bubbles generated by the fine bubble bathing apparatus of the present invention is preferably 4: 6 to 1: 9. More preferably, the liquid: gas volume ratio is from 3: 7 to 2: 8. However, the present invention is not limited to this.

  When the bubble diameter is a fine size such as 5 to 200 μm, a fine gap (space) is formed between the fine bubbles. Therefore, a structure containing liquid (moisture) is formed in the aggregate of fine bubbles by fine-sized bubbles, and the heat capacity of the fine bubbles is greatly improved, which is advantageous for maintaining the temperature of the fine bubble bath. Thus, it can have higher detergency, temperature maintenance, fluidity, or higher liquid retention than general (size) bubbles. In particular, since the fine bubbles having a fine size can retain a moisture amount for a long time, they can retain a high amount of heat. For example, the moisture (liquid) content (ratio of the volume occupied by the liquid) of general (size) bubbles is about 3%, whereas the moisture content of the fine bubbles generated by the microbubble bathing device of the present invention is About 10-40%. Therefore, the fine bubbles generated by the fine bubble bathing device of the present invention can contain water (liquid) several times to several tens of times that of general bubbles, and realize a high heat capacity due to the high water content. This is advantageous for maintaining the temperature of the bathtub. In addition, since microbubbles having such a fine size are used, the microbubbles once generated with a heat quantity have a high heat capacity and are supplied while maintaining the heat quantity. Therefore, there is no need to add heat except for the first heat source (for example, a hot water supply unit). Moreover, since the amount of heat of the fine bubbles themselves is high, the wall surface can be warmed only by applying a small amount of fine bubbles to the wall surface of the bathtub. Furthermore, since the bather's body is wrapped in warm microbubbles in a short time, there is no need to preheat and retain the microbubbles in the bathtub. Thus, since the microbubble bathing apparatus of the present invention does not require any heating means (heating mechanism) other than the first heat source used in the microbubble generating apparatus, the apparatus can be reduced in cost and size. In addition, efficient heat transfer provides high energy savings and facilitates low running costs.

  Moreover, in the fine bubble bathing apparatus of the present invention, since the amount of heat of the fine bubbles per se is easily maintained by using such fine bubbles, the bath can be bathed for a long time while feeling warmth. In addition, bathing is possible even when the fine bubbles are not accumulated in the bathtub, so that the bather can enjoy the flow of fine bubbles flowing on the surface of the body. Thus, the microbubble bathing apparatus of the present invention can enable warm and comfortable bathing of microbubbles without providing any heating means (heating mechanism) other than the microbubble generator.

  According to the fine bubble bathing apparatus of the present invention, by providing the bathtub with the first fine bubble discharge means, the fine bubbles generated from the fine bubble generation means can be discharged to the inner wall surface of the bathtub. It can flow on the inner wall surface (side wall surface and bottom surface). Thereby, the bathtub can be maintained at a predetermined temperature (a temperature suitable for bathing) using the fine bubbles generated by the fine bubble generating means. Therefore, the cold feeling for a bather at the time of bathing is suppressed effectively. Further, since the fine bubbles (warm bubbles) for maintaining the bathtub at a predetermined temperature through the first fine bubble discharge means are generated by the fine bubble generating means of the fine bubble bathing device, It is not necessary to install a simple heating means (heating mechanism) in the bathtub. Therefore, the number of parts of the entire fine bubble bathing apparatus can be reduced, and it becomes easy to reduce the size, cost and running cost of the fine bubble bathing apparatus.

The fine bubble bathing apparatus of the present invention will be described with reference to the drawings.
(First embodiment)
The fine bubble bathing apparatus of this embodiment is shown in FIG. FIG. 1 is an overall conceptual diagram of a fine bubble bathing apparatus according to this embodiment. In addition, the fine bubble bathing apparatus of the present embodiment will be described using a bathtub apparatus 9B having a bathtub W. That is, the microbubble consumption part of this invention is comprised by the bathtub apparatus 9B of this embodiment.

  As shown in FIG. 1, the fine bubble bathing apparatus according to this embodiment includes a fine bubble generating device 9A that generates fine bubbles and a bathtub device 9B. The fine bubbles generated from the fine bubble generating device 9A are used in the bathtub device 9B. The fine bubble generating device 9A constitutes the fine bubble generating means of the present invention.

  First, the fine bubble generating device 9A of the fine bubble bathing apparatus of this embodiment will be described.

  As shown in FIG. 1, the fine bubble generating device 9A of the fine bubble bathing apparatus of the present embodiment is connected to and communicated with a circulation passage 5, and in the order of the flow path, the gas mixing means 1, the moving pressurizing means P, the fine bubble bubbles It is comprised by the formation means 2, the bubble dissolution promotion means 3, and the foaming means 4. The circulation passage 5 is constituted by a communication pipe.

  In the present embodiment, the foaming means 4 includes a detergent solution container 40. Moreover, the detergent solution stored in the detergent solution container 40 is circulated and used. When the detergent solution is used without being circulated, it need not be a liquid circulation type as in the present embodiment.

  The detergent solution used in this embodiment is prepared with warm water having a predetermined temperature (a temperature suitable for bathing). Hereinafter, it may be called a liquid. The hot water may be supplied by a hot water supply unit (not shown), or may be cold water heated by a heating means.

  Moreover, when it is not a circulation type, warm water is directly supplied by the hot water supply part, and it can mix with a detergent and can form a fine bubble (soap, a warm bubble). That is, the amount of heat that the fine bubbles have is due to the hot water supplied by the hot water supply unit.

  Since the fine bubble bathing apparatus of the present embodiment is a circulation type, the detergent solution container 40 includes a detergent solution discharge port 41 and a detergent solution supply port 42, and one end of the connection passage 401 constituting the circulation passage 5. 401a. Since the detergent solution to be discharged is circulated and used, the detergent solution discharge port 41 functions as a liquid intake part (41) described later. The detergent solution discharge port 41 is a discharge port provided at the bottom of the detergent solution container 40 as shown in FIG. The detergent solution supply port 42 is provided on the side wall of the detergent solution container 40. The detergent solution supply port 42 has a structure capable of discharging the liquid in the circulation passage 5 while appropriately maintaining the pressure generated in the circulation passage 5 when the moving pressurizing means (pump) P is operated. Yes. Specifically, the throttle configuration has a smaller inner diameter toward the discharge side (downstream side). With such a configuration, since the space between the moving pressurizing means P and the detergent solution supply port 42 is appropriately pressurized, the promotion of dissolution of gas (bubbles) in the liquid is promoted. Further, since the gas-containing liquid is discharged from the detergent solution supply port 42 into the detergent solution container 40, the liquid in which the gas is dissolved is released from pressure, and thus fine bubbles are generated in the detergent solution container 40.

  As shown in FIG. 1, in this embodiment, the gas mixing means 1 includes a first throttle portion (for example, a Venturi tube) 11 whose inner diameter is reduced along the flow direction of the flow path, a gas introduction passage 101, and the like. Connection passages 401 and 102. The gas introduction passage 101 introduces gas into the first throttle unit 11 and mixes the gas into the first throttle unit 11. The connection passages 401 and 102 constitute a part of the circulation passage 5. One end 401 a of the connection passage 401 is communicated with the detergent solution outlet 41 of the detergent solution container 40, and the other end 401 b is communicated with the first throttle portion 11 of the gas mixing means 1. The gas introduction passage 101 is provided with a gas amount adjusting means 12 such as an adjustment valve or an electromagnetic valve for adjusting the flow rate of the introduced gas. On the other hand, the first throttle portion 11 is connected to the circulation passage 5 via the connection passages 401 and 102. The gas mixing means 1 communicates with the liquid intake part (detergent solution discharge port) 41 through the connection passage 401. With such a configuration, since the liquid passing through the inside of the first throttle unit 11 is accelerated, gas is mixed into the first throttle unit 11 through the gas introduction passage 101 due to the negative pressure generated in the first throttle unit 11. Bubbles are formed. In this embodiment, air is used as the gas mixed from the gas mixing means 1.

As shown in FIG. 1, the pump that is the moving pressurizing means P is disposed in the circulation passage 5 between the gas mixing means 1 and the bubble refining means 2. By operating the moving pressurizing means P, the detergent solution is pressurized between the moving pressurizing means P and the detergent solution supply port 42. In this embodiment, the fluid pressure to the detergent solution supply port 42 is about 4 kgf / cm ² . The moving pressurizing means P is connected to the connection passages 102 and 201 and connected to the liquid circulation channel 5. The connection passage 102 communicating with the moving pressurizing means P is the suction side of the moving pressurizing means P of the present invention. Further, the gas mixing means 1 and the moving pressure means P are automatically controlled by the control means 6A.

  As shown in FIG. 1, the bubble refining means 2 of the present invention has a flow path constituted by a second throttle part 29 and an open part 25 communicating with the detergent solution supply port 42 side of the second throttle part 29. I have. Inside the bubble refining means 2, a flow path is formed through which the bubble-containing liquid flows from the liquid intake portion 41 side to the detergent solution supply port 42.

  Specifically, the bubble refining means 2 includes a connecting portion (not shown) for connecting with the connecting passage 201 on the liquid intake portion 41 side in order toward the detergent solution supply port 42, and a second portion from the connecting passage 201. A guide space (not shown) for guiding the detergent liquid to the throttle portion 29, the second throttle portion 29, the opening portion 25, and a connecting portion (not shown) for connecting to the connection passage 202 on the detergent solution supply port 42 side. )).

  The connection passages 201 and 202 constitute a part of the circulation passage 5. In addition, the microbubbles of the present invention refer to bubbles that are small enough to have sufficient solubility in a liquid (the specific surface area is large) in the bubble dissolution promoting means 3 described later. The fine bubbles generated by discharging the detergent solution supply port 42 to the detergent solution container 40 are bubbles smaller than the fine bubbles.

  In the present embodiment example, the second throttle portion 29 has a sufficiently small cross-sectional area compared to the cross-sectional area of the guide space so that a sufficient flow rate can be imparted to the liquid containing the bubbles. .

  Moreover, the 2nd aperture | diaphragm | squeeze part 29 becomes a shape where a cross-sectional area becomes small toward the detergent solution supply port 42 side. As a result, the bubble-containing liquid passing through the inside of the second throttle portion 29 is sufficiently accelerated. The opening part 25 is provided continuously on the detergent solution supply port 42 side of the second throttle part 29. The cross-sectional area of the open portion 25 is larger than the cross-sectional area of the second throttle portion 29 to such an extent that a flow velocity gradient that can be miniaturized is given to the bubbles that have moved from the second throttle portion 29.

  Further, the length of the opening 25 toward the detergent solution supply port 42 has a length sufficient for the bubbles that have reached the opening 25 and decelerated to become finer.

  Moreover, the cross-sectional area of the opening part 25 is larger than the cross-sectional area of the internal space of the circulation passage 5 continuous to the detergent solution supply part 42 side. As a result, the flow rate in the opening 25 is sufficiently smaller than the flow rate in the second restrictor 29 and the flow rate in the circulation passage 5 on the detergent solution supply port 42 side. For this reason, a big speed gradient can be given to a bubble.

  Thus, by having the opening part 25, the air bubbles that have been accelerated through the second throttle part 29 are decelerated when they reach the opening part 25. Due to this velocity gradient, the bubbles are compressed and refined to generate microbubbles.

  As shown in FIG. 1, the bubble dissolution promoting means 3 includes an inlet 311 through which liquid flows in and an outlet 312 through which liquid flows out. The connection passage 202 is communicated with the inflow port 311, and the connection passage 301 is communicated with the outflow port 312. The connection passages 202 and 301 constitute a part of the circulation passage 5. Thus, the bubble dissolution promoting means 3 is connected to the circulation passage 5 via the connection passages 202 and 301.

  Further, as shown in FIG. 1, the bubble dissolution promoting means 3 allows the liquid in the bubble dissolution promoting means 3 to be given a time during which the microbubble-containing liquid can pass and the microbubbles are sufficiently dissolved in the liquid. A detour channel 31 for detouring and a non-dissolved gas collecting unit 32 that collects gas that is provided in the upper part of the bubble dissolution promoting means 3 and does not dissolve in the gas-containing liquid are provided.

  The bypass flow path 31 is formed by partitioning the inside of the bubble dissolution promoting means 3 using a member such as a shielding plate. When the bubble-containing liquid passes through the inside of the bubble dissolution accelerating means 3 through the bypass flow path 31, sufficient time for dissolution can be obtained, and the microbubbles are further dissolved in the liquid.

  The non-dissolved gas collecting unit 32 is provided above the bubble dissolution promoting means 3 and collects a gas that is contained in the bubble-containing liquid and does not dissolve (referred to as an excess gas generated by dissolution saturation) by a specific gravity difference. Further, the non-dissolved gas collected by the non-dissolved gas collecting unit 32 (gas that does not dissolve in the liquid) is provided through the non-dissolved gas discharge unit 33 that is provided in the bubble dissolution promoting means 3 and communicates with the non-dissolved gas collecting unit 32. Discharged. Furthermore, the non-dissolved gas discharge unit 33 includes a gas discharge channel 331 that communicates with the bubble dissolution promoting unit 3 and a flow rate adjusting unit 332 that adjusts the gas discharge amount provided in the gas discharge channel 331. The flow rate adjusting means 332 is composed of an open / close valve such as an electromagnetic valve.

  After the gas in the microbubbles is dissolved in the liquid by the bubble dissolution promoting means 3, the gas-dissolved detergent solution (detergent solution in which the gas is dissolved in the liquid) flows to the foaming means 4 through the connection passage 301. As described above, the circulation passage 5 includes the connection passages 401, 102, 201, 202 and 301.

  Further, as shown in FIG. 1, the gas-dissolved (detergent) solution is discharged from the detergent solution supply port 42 to the detergent solution container 40. The detergent solution container 40 stores a detergent solution. When the gas dissolved in the detergent solution is ejected into the detergent solution container 40 through the detergent solution supply port 42, the detergent solution container 40 is opened to the atmosphere. Therefore, it becomes fine bubbles again by depressurization and is precipitated from the detergent solution P2. The precipitated fine bubbles form a soap layer P10. Note that the soap layer P10 may be referred to as a micro bubble foam MBF when used in the fine bubble consuming unit 9B described later.

As shown in FIG. 1, the detergent solution container 40 is provided with a liquid level detecting means 7 for detecting the level of the liquid level of the detergent solution. The bottom 401 of the detergent solution container 40 is provided with a detergent container discharge port (liquid intake part) 41 for discharging (circulating) the detergent solution.
Further, as shown in FIG. 1, in this embodiment, a replenisher solution replenishing means 8A for replenishing the detergent solution container 40 with a replenisher solution is provided. The replenishing solution replenishing means 8A includes a replenishing solution inlet 44 provided in the detergent solution container 40 for communication, a replenishing solution storage tank 81 provided above the detergent solution container 40 for storing a replenishing solution, and a replenishing solution inlet 44. A communication channel 801 that communicates with the replenishment solution storage tank 81 and a flow rate adjusting means 82 (valve) that is provided in the communication channel 801 and adjusts the flow rate of the replenishment solution are provided. In this embodiment, the replenishment solution is composed of water or warm water. When the flow rate adjusting means 82 is opened, the replenishment solution can flow into the detergent solution container 40 positioned below due to its own weight. Thus, based on the information on the level of the liquid level of the detergent solution in the detergent solution container 40 detected by the liquid level detecting means 7, the replenishing solution replenishing means 8A replenishes the detergent solution container 40 with a necessary amount. The solution can be replenished, and the liquid level of the detergent solution in the detergent solution container 40 can be maintained within a predetermined position range. Accordingly, the fine bubbles contained in the upper layer of the detergent solution in the detergent solution container 40 are not easily sucked into the liquid intake part (detergent solution discharge port) 41 located on the bottom surface of the detergent solution container 40. Therefore, it is possible to suppress a decrease in pump performance due to gas mixing in the moving pressurizing means (pump) P.

  Further, the liquid level detecting means 7 and the replenishing solution replenishing means 8A are automatically controlled by the control means 6B.

  Further, in order to adjust the temperature of the fine bubbles, heating means such as a heater can be provided in the circulation passage 5 or the fine bubble supply port 42. By providing heating means such as a heater, the detergent solution in the circulation passage 5 and the detergent solution container 40 can be warmed, and the temperature of fine bubbles formed by the detergent solution can be adjusted.

  As shown in FIG. 1, the fine bubbles formed in the detergent solution container 40 are discharged through the fine bubble supply port 43 and then flow into the bathtub device 9 </ b> B through the communication channel 431. Thus, the bathtub apparatus 9B is connected to the fine bubble generating apparatus 9A. The bathtub device 9B is open to the atmosphere.

  Next, the bathtub apparatus 9B (fine bubble consumption part) which is the characteristic of this embodiment is demonstrated.

  The bathtub apparatus 9B of the fine bubble bathing apparatus of the present invention is shown in FIG. As shown in FIG. 2, the bathtub device 9 </ b> B is installed adjacent to the fine bubble generating device 9 </ b> A and communicated with the fine bubble generating device 9 </ b> A via the communication channel 431. FIG. 2 shows a side view of the fine bubble bathing apparatus of the present embodiment.

  Specifically, as shown in FIG. 2, the fine bubble consuming unit of the present embodiment is configured by a bathtub device 9 </ b> B including a bathtub W that can take a fine bubble bath. That is, the fine bubbles (micro bubble foam: MBF) generated in the fine bubble generating device 9A flow to the bathtub W of the bathtub device 9B through the communication channel 431 and are used.

  The bathtub W of this embodiment is installed on the floor 925 (shown in FIG. 1). The bathtub W has a rectangular box shape, and includes four side wall portions 9601 and 9602 (shown in FIG. 3), 9603 and 9604, and a bottom portion 9600. In addition, FIG. 3 shows the KK cross section of the bathtub apparatus 9B of the embodiment shown in FIG. Further, side wall surfaces 9601S, 9602S, 9603S, and 9604S (inside the bathtub) are formed on the side wall portions 9601, 9602, 9603, and 9604, respectively. The bottom surface portion 9600 is formed with a bottom surface 9600S (inner side of the bathtub).

  As shown in FIG. 2, the bather J takes a bath while sitting in the bathtub W. As shown in FIG. 3, a passage 9611 </ b> A is formed inside the side wall portion 9601 of the bathtub W, and a passage 9611 </ b> B is formed inside each of the side wall portions 9602 and 9603. The passages 9611A and 9611B communicate with each other through the passage 9611C, and are disposed inside the side wall portions 9601, 9602, and 9603 along the horizontal direction. Further, the passages 9611A and 9611B that are in communication with each other are in communication with the communication channel 431 through the first communication channel 4311.

  As shown in FIG. 2, the side wall 9601 of the bathtub W faces the back of the bather J. A plurality of through holes 9613A are formed in the side wall portion 9601 of the bathtub W. The through hole 9613A includes a first discharge port 9613 (shown in FIG. 3) having one end communicating with the passage 9611A and the other end opening in the side wall surface 9601S of the side wall portion 9601 of the bathtub W. As described above, the first discharge ports 9613 of the plurality of through holes 9613A communicating with the passage 9611A are evenly distributed (distributed at predetermined intervals) on the side wall surface 9601S of the side wall portion 9601 of the bathtub W.

  The plurality of first discharge ports 9613 are arranged on the side wall surface 9601S of the side wall portion 9601 at a position slightly higher than the back portion of the bather J sitting in the bathtub W. Thereby, the microbubble foam (MBF) having a high heat capacity flowing into the bathtub W through the communication channel 431, the first communication channel 4311, the passage 9611A, the through hole 9613A, and the first discharge port 9613 The side wall surface 9601S can be warmed simultaneously with flowing downward along the side wall surface 9601S of the side wall portion 9601. Moreover, since the 1st discharge port 9613 is arrange | positioned in the position higher than the back part of the bather J, the side wall surface 9601S of the side wall part 9601 of the bathtub W is warmed by the micro bubble foam (MBF), and a bather When J comes into contact with the side wall surface 9601S of the side wall portion 9601, a cool feeling is suppressed.

  Moreover, as shown in FIG. 3, the side wall parts 9602 and 9603 of the bathtub W are located facing the left and right of the bather J. A plurality of through holes 9612A are formed in the side wall portions 9602 and 9603, respectively. The through-hole 9612A includes a first discharge port 9612 (shown in FIG. 2) having one end communicating with the passage 9611B and the other end opening on the side wall surfaces 9602S and 9603S of the side surfaces 9602 and 9603 of the bathtub W. As described above, the first discharge ports 9612 of the plurality of through holes 9612A communicating with the passage 9611B are evenly distributed on the side wall surfaces 9602S and 9603S of the side wall portions 9602 and 9603 of the bathtub W.

  The plurality of first discharge ports 9612 are arranged at positions higher than ½ of the height of the bathtub W on the side wall surfaces 9602S and 9603S of the side wall portions 9602 and 9603, respectively. Thereby, microbubble foam (MBF) having a high heat capacity flows into the bathtub W through the communication channel 431, the first communication channel 4311, the channel 9611A, the channel 9611B, the through-hole 9612A, and the first discharge port 9612. . Further, the microbubble foam (MBF) can flow downward along the side wall surfaces 9602S and 9603S of the side wall portions 9602 and 9603 of the bathtub W, and simultaneously warm the side wall surfaces 9602S and 9603S. Moreover, since the 1st discharge port 9612 is arrange | positioned in the position higher than 1/2 of the height of the bathtub W, the side wall surfaces 9602S and 9603S of the side wall parts 9602 and 9603 of the bathtub W are made of microbubble foam (MBF). When the body of the bather J is warmed and touches the side wall surfaces 9602S and 9603S of the side wall portions 9602 and 9603 of the bathtub W, a cool feeling is suppressed.

  In this embodiment, the first fine bubble discharge means 961 is configured by the passage 9611A, the passage 9611B, the through hole 9612A, the through hole 9613A, and the first discharge ports 9612 and 9612.

  The microbubble foam (MBF) having a high heat capacity is connected to the bathtub W through the first discharge ports 9612 and 9613 of the plurality of through holes 9612A and 9613A provided in the side wall portions 9601, 9602, and 9603 of the bathtub W, respectively. The side wall surfaces 9601S, 9602S, and 9603S flow to the bottom 9600 of the bathtub W, and the bottom 9600 bottom surface 9600S is warmed. Therefore, the entire inner wall surface (including the side wall surface and the bottom surface) of the bathtub W is warmed, and the cool feeling for the bather J is reduced. That is, by providing the first fine bubble discharge means 961 with a plurality of first discharge ports 9612 and 9613, the microbubble foam (MBF) sent from the fine bubble generation device 9 A can be used as the first fine bubble discharge means 961. It is simultaneously discharged to the entire side wall surfaces 9601S, 9602S, and 9603S of the bathtub W through the plurality of first discharge ports 9612 and 9613, and further flows downward along the side wall surfaces 9601S, 9602S, and 9603S by gravity, and finally the bathtub W Can flow to the bottom surface 9600S. Thereby, the amount of heat of the fine bubbles is conducted to the inner wall surface (side wall surface and bottom surface) of the bathtub W, and the inner wall surface of the bathtub W can be maintained at a temperature suitable for bathing uniformly and efficiently.

  The microbubble size of the microbubble foam (MBF) generated by the microbubble bathing apparatus of this embodiment is 5 to 200 μm. More preferably, it is 10-95 micrometers. More preferably, it is 15-90 micrometers. Moreover, the volume ratio of the liquid: gas contained in the microbubble of a microbubble foam (MBF) is 4: 6 to 1: 9. More preferably, the liquid: gas volume ratio is from 3: 7 to 2: 8.

  When the diameter of the fine bubbles is, for example, a fine size such as 5 to 200 μm, the fine bubbles can have a higher detergency, temperature maintainability, fluidity, or higher liquid retention than general (size) bubbles. In particular, since the fine bubbles having a fine size can retain a moisture amount for a long time, they can retain a high amount of heat. For example, while the water (liquid) content (ratio of the volume occupied by the liquid) of general (size) bubbles is about 3%, the microbubble foam generated by the fine bubble bathing apparatus of this embodiment ( The water content of the fine bubbles of MBF) can be about 10-40%. Therefore, microbubble foam (MBF) microbubbles generated by the microbubble bathing apparatus of this embodiment can contain water (liquid) several times to several tens of times higher than general bubbles, and high moisture content. Since the high heat capacity by content can be implement | achieved, it is advantageous to the temperature maintenance of the bathtub W.

  In addition, since microbubbles having such a fine size are used, the microbubbles once generated with a heat quantity have a high heat capacity and are supplied while maintaining the heat quantity. Therefore, there is no need to add heat except for the first heat source (for example, a hot water supply unit). Moreover, since the amount of heat possessed by the fine microbubbles themselves is high, the wall surface can be warmed only by applying a small amount of microbubbles to the inner wall surface (side wall surface and bottom surface) of the bathtub W (shown in FIG. 2). Furthermore, since the body of the bather J (shown in FIG. 2) is wrapped in warm microbubbles in a short time, it is not necessary to store the microbubble foam (MBF) in the bathtub W in advance and keep it warm. As described above, the fine bubble bathing apparatus of the present embodiment does not require any heating means (heating mechanism) other than the first heat source used in the fine bubble generating apparatus 9A (shown in FIG. 1). Cost and compactness are possible. In addition, efficient heat transfer provides high energy savings and facilitates low running costs.

  Moreover, in the fine bubble bathing apparatus of the present invention, since the amount of heat of the fine bubbles per se is easily maintained by using such fine bubbles, the bath can be bathed for a long time while feeling warmth. In addition, since the bath can be taken even when the fine bubbles are not accumulated in the bathtub W, the bather can also enjoy the flow feeling of the fine bubbles flowing on the surface of the body. Thus, the fine bubble bathing device of the present invention can enable warm and comfortable bathing of fine bubbles without providing any heating means (heating mechanism) other than the fine bubble generating device 9A.

  Further, the positions (heights) of the first discharge ports 9612 and 9613 can be optimized based on actual body data of the bather J. Similarly, a side wall portion 9604 (a side wall in the foot direction of the bather J, shown in FIG. 2) can similarly be provided with a passage and a discharge port for conveying fine bubbles, and warm the side wall surface 9604S of the side wall portion 9604. You can also.

  Thus, in the microbubble bathing apparatus of the present embodiment, the microbubbles generated from the microbubble generator 9A are discharged to the inner wall surface of the bathtub W by including the first microbubble discharge means 961 in the bathtub W. The fine bubbles can flow on the inner wall surface (side wall surface and bottom surface) of the bathtub W. Thereby, the bathtub W can be maintained at predetermined temperature (temperature suitable for bathing) using the microbubble produced | generated by 9A of microbubble generators. Therefore, a cold touch is effectively suppressed for the bather J at the time of bathing. Further, since the fine bubbles for maintaining the bathtub W at a predetermined temperature via the first fine bubble discharge means 961 are generated by the fine bubble generator 9A, the heating means (heating mechanism) such as an electric heater is used. ) Need not be installed in the bathtub W. Therefore, the number of parts of the entire fine bubble bathing apparatus of the present embodiment can be reduced, and the apparatus can be made compact, the cost can be reduced, and the running cost can be easily reduced.

  Further, as shown in FIG. 2 or FIG. 4, the upper part of the bathtub W is provided with second fine bubble discharge means 962 that discharges fine bubbles toward the shoulder of the bather J sitting in the bathtub W. ing. In addition, FIG. 4 shows the front view of the bathtub apparatus 9B of the present embodiment. As shown in FIG. 4, the second fine bubble discharge means 962 according to the present embodiment is divided into two parts on the left and right sides of the bather J's shoulder.

  As shown in FIG. 2, the second fine bubble discharge means 962 is provided with a passage 9621 inside, and a second discharge port 9622 that discharges fine bubbles to the shoulder portion of the bather J is provided at one end of the passage 9621. Is provided. Further, the other end of the passage 9621 is communicated with the communication channel 431 through the second communication channel 4312. Thus, the microbubble foam (MBF) generated by the fine bubble generating device 9A is bathed in the bathtub W through the communication channel 431, the second communication channel 4312, the passage 9621, and the second discharge port 9622. Is discharged into the body of the person J. The microbubble foam (MBF) is discharged on the shoulder of the bather J and then flows in the direction of gravity along the body of the bather J and is stored in the bathtub W. Furthermore, the opening size of the second discharge port 9622 is set to approximately the shoulder width of the body of the bather J. Accordingly, a wide range of bodies such as the back including the shoulders of the bather J are warmed by the hot bubbles and are comfortable.

  Note that the communication channel 431, the first communication channel 4311, the second communication channel 4312, the first microbubble ejection unit 961 and the second microbubble ejection unit 962 of the present embodiment are examples of the microbubble supply unit of the present invention. It constitutes.

  As described above, the fine bubble bathing apparatus of the present embodiment includes the second fine bubble discharge means 962 that discharges fine bubbles (warm bubbles) to the body of the bather J, and the fine bubbles are directly applied to the body of the bather J. Can be supplied. Also, the fine bubbles can cover or flow over the body of the bather J. That is, the fine bubbles are supplied to the bather J in the bathtub W through the second fine bubble discharge means 962, and the bather J can enjoy the fine bubble bath.

  Further, the first fine bubble discharge means 961 and the second fine bubble discharge means 962 of this embodiment each include a flow rate control means (not shown) for controlling the flow rate (opening and closing) of the microbubble foam (MBF). Can do. Thereby, the flow volume of the micro bubble foam (MBF) which flows in in the bathtub W can be controlled.

  For example, immediately before the bather J takes a bath, the first fine bubble discharge means 961 of this embodiment is set in an open state, and the microbubble foam (MBF) supplied via the first fine bubble discharge means 961 is used. The inner wall surface (side wall surface and bottom surface) of the bathtub W can be warmed in advance. The bather J can comfortably enjoy fine bubble bathing without feeling the cool feeling of the inner wall surface of the bathtub W immediately after the start of bathing.

  Note that the microbubble foam (MBF) whose temperature has been lowered by heat exchange is discharged to a defoamer 92 described later via a drainage introduction portion 95A provided at the bottom 9600 of the bathtub W. Thereby, the temperature in the bathtub W can be maintained easily and a warm bathing environment can be formed.

  Further, when the bather J takes a bath in the bathtub W, the first fine bubble discharge means 961 and the second fine bubble discharge means 962 are simultaneously opened, so that the temperature of the bathtub W can be maintained quickly while the bath W is maintained. Microbubble foam (MBF) in W can be stored. Further, since the micro bubble foam (MBF) discharged through the first fine bubble discharge means 961 flows on the inner wall surface of the bathtub W, the body of the bather J who contacts the inner wall surface of the bathtub W is always micro. Bubble foam (MBF) is applied. Furthermore, since the microbubble foam (MBF) is discharged from the shoulder portion of the bather J through the second fine bubble discharging means 962, the whole body of the bather J is wrapped with the microbubble foam (MBF). Thereby, bathing person J's body can be washed and at the same time bathing temperature can be maintained. In addition, since the microbubble foam (MBF) is warmed to an appropriate temperature and can retain the amount of heat for a long time, the bather J can enjoy bathing in fine bubbles for a long time.

  Moreover, as shown in FIG. 5, the bathtub apparatus 9B of the fine bubble bathing apparatus of the present embodiment is configured to remove the fine bubbles of the microbubble foam (MBF) after use and defoamer 92 (FIG. 5). Is provided). That is, the used fine bubbles are defoamed by the defoamer 92 and then discharged to the drain pipe 95. In addition, FIG. 5 shows the cross section of the defoamer 92 of the fine bubble bathing apparatus of this embodiment.

  Specifically, the used microbubble foam (MBF) is introduced from the bathtub W to the defoamer 92 through the drainage introduction part 95A installed at the bottom 9600 of the bathtub W. The microbubble foam (MBF) is defoamed by the defoamer 92 and discharged from the drain pipe 95. Further, the micro bubble foam (MBF) jumping out of the bathtub W is collected by a water discharge nozzle (not shown) for collecting fine bubbles, an inclined surface (not shown) installed so that the water flow can flow easily, and the like. Further, the bubbles can be removed by flowing into the defoamer 92 via the inflow groove 924 (shown in FIG. 1).

  Hereinafter, the defoamer 92 will be described more specifically.

  As shown in FIG. 5, a defoamer 92 that defoams and processes fine bubbles of the used microbubble foam (MBF) is installed in the lower part of the bathtub W. The defoamer 92 can erase the microbubbles in the microbubble foam (MBF) after bathing.

  As shown in FIG. 5, the defoamer 92 is provided below the bottom 9600 of the bathtub W. The defoamer 92 includes a case portion 921, and the upper surface portion 9211 of the case portion 921 constitutes a part of the floor surface 925. In addition, the case portion 921 includes left and right side surface portions 9213 and 9214, front and rear side surface portions (not shown), and a lower surface portion 9212 together with the upper surface portion 9211, and forms an internal space 922 therein.

  In addition, as shown in FIG. 1, an inflow groove 924 that allows microbubble foam (MBF) jumping from the bathtub W to the floor surface 925 to flow into the defoamer 92 is formed on the floor surface 925 above the defoamer 92. Is provided. Accordingly, the microbubble foam (MBF) can flow to the defoamer 92 via the inflow groove 924 even when the microbubble foam (MBF) flows out from the bathtub W to the floor surface 925.

  Further, as shown in FIG. 5, an internal space 922 is formed inside the case portion 921 of the defoamer 92, and the microbubble foam (flowing from the bathtub W to the case portion 921 via the drainage introduction portion 95A) MBF) flows into the internal space 922 and is defoamed. Specifically, as shown in FIG. 5, the flowing microbubble foam (MBF) flows into the internal space 922 along the microbubble foam moving direction D5.

  Further, as shown in FIG. 5, the internal space 922 is provided with a defoaming area 923 for defoaming microbubbles (MBF) fine bubbles. The microbubble foam (MBF) that has flowed in is defoamed in the defoaming area 923. Specifically, the lower surface portion 9212 of the case portion 921 includes a second inclined surface 9221 that guides the microbubble foam (MBF) to the defoaming area 923 and has a predetermined inclination (second inclination K2). . As shown in FIG. 5, the second inclined surface 9221 is positioned below the drainage introduction portion 95A, and the microbubble foam (MBF) flowing from the drainage introduction portion 95A moves on the second inclined surface 9221. It flows in the descending direction of the inclined surface along the direction D6. In addition, the lower surface portion 9212 is provided with a third inclined surface 9222 that is continuous with the second inclined surface 9221 along the flow direction of the microbubble foam (MBF) and has a predetermined inclination (third inclination K3). Yes. A defoaming area 923 is formed on the third inclined surface 9222. Further, the inclination K3 of the third inclined surface 9222 is set so that the passage time of the microbubble foam (MBF) passing through the defoaming area 923 formed on the third inclined surface 9222 is extended and the defoaming can be sufficiently performed. It is set smaller than the degree of inclination K2 of the two inclined surfaces 9221. Thereby, the micro bubble foam (MBF) which passes through the defoaming area 923 is adjusted to a suitable flow rate, and it can have time which can fully defoam. Further, the bottom surface 9212 is formed with a lowest surface 9223 that is continuous with the third inclined surface 9222 along the moving direction D6 of the microbubble foam. The lowest surface 9223 is provided with a drain outlet 951 of the drain pipe 95, and the defoamed fine bubble defoaming liquid is discharged.

  Further, as shown in FIG. 5, the first spray nozzle 927 is provided on the upper surface portion 9211 of the case portion 921 of the defoamer 92. Further, the first spray nozzle 927 is located above the defoaming area 923 formed on the third inclined surface 9222, generates a first mist, and sprays the defoaming area 923.

  Specifically, as shown in FIG. 6, two first spray nozzles 927 </ b> A and 927 </ b> B are provided on the upper surface portion 9211 of the case portion 921 of the present embodiment example. The first spray nozzles 927A and 927B form two circular mist spray areas 9271A and 9271B around the nozzle (first spray nozzles 927A and 927B) in the defoaming area 923. Accordingly, the microbubble foam (MBF) flowing from the drainage introduction part 95A enters the defoaming area 923 (fog spray area 9271A, 9271B) along the second inclined surface 9221 and the third inclined surface 9222, and the first The defoaming is performed by hitting the first mist droplets ejected from the spray nozzles 927A and 927B. In this way, the microbubble foam (MBF) that has flowed into the defoaming machine 92 is formed by forming the defoaming area 923 (fog spray areas 9271A and 9271B) along the moving direction D6 of the microbubble foam (MBF). Is efficiently removed.

  In addition, if the size of the first mist droplets ejected from the first spray nozzle 927 is too large, the first mist droplets become water droplets, and bubbles are likely to be formed when jumping to a detergent solution or the like. In addition, if the size of the first mist droplet is too small, the microbubble foam (MBF) does not have enough power to defoam the microbubbles even if they hit the microbubbles (MBF). It becomes difficult to defoam bubbles. The size of the first mist is set so that these problems do not occur.

  In addition, if the spraying speed of the first mist droplets ejected from the first spray nozzle 927 is too large, bubbles are easily formed by the first mist droplets jumping off. On the other hand, if the injection speed is too slow, it is difficult to defoam because the force is weak. The injection flow rate is set so as not to cause these problems.

  As shown in FIG. 5, the second spray nozzle 928 is provided on the upper surface portion 9211 of the case portion 921 of the defoamer 92. Further, the second spray nozzle 928 is located above the drain port 951 of the drain pipe 95 provided on the lowest surface 9223, generates second mist around the drain port 951, and around the drain port 951. Spray. The drain port 951 is located downstream of the defoaming area 923 along the moving direction D6 of the microbubble foam (MBF). Further, as shown in FIG. 6, a mist droplet ejection area 9281 centering on the nozzle (second spray nozzle 928) is formed on the lowest surface 9223. Further, the mist droplet ejection area 9281 blocks the periphery including the drain outlet 951 from the outside. That is, the second spray nozzle 928 ejects the second mist droplets around the periphery including the drain port 951 to form a water curtain (mist droplet ejection area 9281). As a result, drainage (microbubble defoaming liquid) containing microbubble foam (MBF) that is not defoamed or incompletely defoamed is avoided from the drainage port 951, and the inflow of microbubble foam (MBF) to the drainage port 951 is prevented. Suppressed.

  Thus, the microbubble foam (MBF) defoamed by the first spray nozzle 927 becomes a liquid close to water (fine bubble defoamed liquid), can pass through the water curtain formed by the second spray nozzle 928, It flows to the drainage port 951 of the pipe 95. On the other hand, microbubble foam (MBF) that has not been defoamed or incompletely defoamed is shielded from the drain port 951 of the drain pipe 95 by the second spray nozzle 928. Therefore, it is possible to prevent or reduce the clogging of the drainage pipe 95 due to the inflow of microbubble foam (MBF) into the drainage pipe 95.

  As shown in FIG. 5, the defoaming means 92 of this embodiment is provided with water supply means 93 for supplying water or hot water to the first spray nozzle 927 and the second spray nozzle 928. Water is supplied to the first spray nozzle 927 and the second spray nozzle 928 via the water supply means 93.

  Further, since the fine bubble defoaming liquid discharged from the drain pipe 95 and formed by defoaming of the fine bubbles becomes close to water, it is recovered by the circulation means (not shown) in the water supply means 93 and recycled. It can also be used (circulated).

  In addition, the microbubble bathing apparatus according to the present embodiment is a gas-liquid separator (see FIG. 5) that separates liquid components stored in the microbubble foam (MBF) supplied from the microbubble supply port 43 from the microbubble foam (MBF). (Not shown), temperature adjusting means (not shown) for readjusting the temperature of the microbubble foam (MBF), a shower (not shown) for flowing the microbubble foam (MBF) from the body, and the like.

  As described above, the fine bubble bathing apparatus of the present embodiment can suppress the clogging of the drain pipe due to the unfoamed fine bubbles, and can enjoy the fine bubble bath (foam bath).

  Further, in the bathtub device 9B of the fine bubble bathing apparatus of the present invention, a shower nozzle type (not shown) that allows the bather J to freely change the discharge position at the second discharge port 9622 of the second fine bubble discharge means 962. If a thing (for example, a shower head etc.) is connected, the bather J can apply a warm bubble to a favorite site | part and can enjoy a fine bubble bath more comfortably.

  Moreover, although the fine bubble bathing apparatus of the present invention is applied to the warm bubble bathing of the human body, it can also be used for uses other than humans, for example, bathing of animals such as horses and dogs.

Moreover, in the fine bubble bathing apparatus of this embodiment, the fine bubbles formed by the fine bubble generator 9A have a high water content and heat capacity because of the fine size (for example, the diameter is 5 to 200 μm). Therefore, it is suitable for maintaining the bathing temperature in the bathtub W of the bathtub apparatus 9B. In the fine bubble generating device 9A of the fine bubble bathing apparatus of the present embodiment, a gas-dissolved detergent solution is formed by pressurizing a gas to the detergent solution, and the gas-dissolved detergent solution is further decompressed in this way. However, the present invention is not limited to the fine bubble generating apparatus using the process of pressurizing and depressurizing as long as the apparatus can generate fine bubbles of fine size. A fine bubble bathing device can be configured by connecting with the device 9B. For example, you may use the stirring type fine bubble generator which stirs gas in a detergent liquid and produces | generates a fine sized fine bubble.
(Second Embodiment)
The microbubble generator of this embodiment is basically the same as the configuration of the microbubble generator of the first embodiment. In the following, parts different from the first embodiment will be described. Note that portions similar to those in the first embodiment are described using the same reference numerals.

  The fine bubble generator of this embodiment will be described with reference to FIG. In addition, FIG. 7 shows the side surface conceptual diagram of the fine bubble bathing apparatus of this embodiment.

  As shown in FIG. 7, the microbubble bathing apparatus of the present embodiment is configured by a microbubble generating means 9A, a microbubble consuming unit 9B, and a microbubble supplying means. The fine bubble supply means of the present embodiment includes a communication channel 431, a first communication channel 4311, a second communication channel 4312, a first fine bubble discharge unit 961, and a second fine bubble discharge unit 962. Is done.

  Further, the fine bubble consuming part 9B is constituted by a bathtub W. The bathtub W includes side wall portions 9601 and 9602 (shown in FIG. 3), 9603 and 9604, and bottom portions 9600 and 9608 on the inner side. The bottom portion 9608 has a predetermined step with respect to the bottom portion 9600, and the bather J (shown in FIG. 2) can sit on the bottom portion 9608 and take a bath with a more natural posture. Moreover, as shown in FIG. 7, the side wall part 9601 is formed as an inclined surface in the position which hits the backrest part of the bather J so that the bather J can bathe in a more natural posture.

  Moreover, as shown in FIG. 7, the bathtub W of this embodiment is further equipped with the curtain part 9607 on the outer side. The curtain portion 9607 is installed from the outside of the bathtub W so as to surround the side wall portions 9601, 9602, 9603, and 9604 and the bottom portions 9600 and 9608 inside the bathtub W. Accordingly, a back space 9609 is formed between the curtain portion 9607 located outside the bathtub W, and the side wall portions 9601, 9602, 9603, and 9604 and the bottom portions 9600 and 9608 located inside. Note that the curtain portion 9607 can be formed of a material having a heat insulating effect. Further, the back space 9609 may be formed to be sealed in order to enhance the heat insulating effect. Thereby, the flow of air in the sealed space is suppressed, and the heat insulating effect is increased.

  Moreover, the side wall parts 9601, 9602, 9603, 9604, the bottom parts 9600, 9608, and the curtain part 9607 of the bathtub W can be integrally formed.

  Further, the fine bubble generating means 9A of the present embodiment example is provided in the back space 9609 and constitutes the bathtub heat retaining mechanism of the present invention. Specifically, as shown in FIG. 7, the fine bubble generating means 9A is located below the rear portion of the side surface portion 9601 of the bathtub W, and heats the entire bathtub W around the side surface portion 9601. Heat can be transferred by heat transfer methods such as radiation and transmission.

  In other words, by providing the back space 9609 with a bathtub heat-retaining mechanism composed of the fine bubble generating means 9A, the heat radiation generated when the fine bubble generating means 9A generates the fine bubbles is effectively absorbed in the back space 9609. By utilizing this heat radiation, the back space 9609 and the side wall portions 9601, 9602, 9603, 9604, the bottom portions 9600, 9608 and the like inside the bathtub W can be heated and kept warm. As a result, it becomes easier to maintain the temperatures of the inner side walls 9601, 9602, 9603, 9604 and the bottoms 9600, 9608 of the bathtub W located in the upper part of the back space 9609, and the cool feeling of the bathtub W is improved when taking a bath. can do.

  In particular, in the present embodiment, since the fine bubble generating means 9A is installed behind the side wall portion 9601 in the back space 9609, the exhaust heat generated by the fine bubble generating means 9A is caused by heat radiation. Heat can be directly transferred to the portion 9601. For this reason, especially the back of the bather J who directly hits the side wall part 9601 can be made to feel warm.

  Further, as shown in FIG. 7, the passage 9611 </ b> B constituting the first fine bubble discharge means 961 is inclined downward along the flow (progression) direction of the fine bubbles flowing to the first discharge port 9612. . Thereby, the fine bubbles in the passage 9611B can easily flow due to the action of gravity, and at the same time, it is possible to suppress the fine bubbles from staying in the passage 9611B due to the gravity action and increasing the bubble diameter.

  Further, as shown in FIG. 7, the lengths of the through holes 9612A and 9612B communicating the first discharge port 9612 and the passage 9611B (the vertical distance between the first discharge port 9612 and the passage 9611B) are the first discharge port 9612. It is set so as to increase along the direction of flow (advance) of the fine bubbles flowing to. Thereby, the fine bubbles can be discharged from the first discharge ports 9612 almost simultaneously. In other words, if the vertical distance between the passage 9611B for supplying fine bubbles and the first discharge port 9612 is set to be the same, the minute distance from the first discharge port 9612 on the tip side (the left side in FIG. 7) of the passage 9611B. The discharge of bubbles is delayed from the discharge of fine bubbles from the first discharge port 9612 on the fine bubble generating means 9A side (the right side shown in FIG. 7). The fine bubble bathing apparatus of the present embodiment can suppress such a phenomenon by adjusting the lengths of the through holes 9612A and 9612B (the vertical distance between the first discharge port 9612 and the passage 9611B). .

  The fine bubble bathing apparatus of the present invention can be used in fields such as a body washing apparatus and a warm foam bathing apparatus.

It is a conceptual diagram of the fine bubble bathing apparatus in the first embodiment of the present invention. It is a side surface conceptual diagram of the bathtub apparatus of the fine bubble bathing apparatus in the example of 1st Embodiment of this invention. It is a KK cross-sectional conceptual diagram shown in FIG. 1 of the fine bubble bathing apparatus in the first embodiment of the present invention. It is a front conceptual diagram of the bathtub apparatus of the fine bubble bathing apparatus in the first embodiment of the present invention. It is a side surface conceptual diagram of the defoaming machine of the fine bubble bathing apparatus in the example of 1st Embodiment of this invention. It is a conceptual diagram of the defoaming area in the defoaming machine of the fine bubble bathing apparatus in the first embodiment of the present invention. It is a side surface conceptual diagram of the fine bubble bathing apparatus in the 2nd Example of this invention.

Explanation of symbols

9A: Microbubble generator (microbubble generator)
9B: Bathtub device (microbubble consumption part) W: Bathtub 961: First microbubble discharge means 962: Second microbubble discharge means 9612, 9613: First discharge port 9622: Second discharge port 431: Communication channel (fine Bubble supply means)

Claims (7)

Fine bubble generating means for generating fine bubbles by foaming a detergent solution;
A fine bubble consumption unit having a bathtub for fine bubble bathing,
A fine bubble supply means for supplying the fine bubbles generated by the fine bubble generating means to the fine bubble consumption unit,
The fine bubble supply means includes
A fine bubble bathing device comprising a first fine bubble discharge means provided in the bathtub and having a first discharge port for discharging the fine bubbles to an inner wall surface of the bathtub.   The said fine bubble supply means is provided in the said bathtub, It is provided with the 2nd fine bubble discharge means with a 2nd discharge port which discharges the said fine bubble to the body of the bather in the said bathtub. The fine bubble bathing apparatus described in 1. The inner wall surface of the bathtub has a side wall surface and a bottom surface,
The said 1st fine bubble discharge means is provided with the said some 1st discharge port, The said some 1st discharge port is disperse | distributed and arrange | positioned at the said side wall surface of the said bathtub. The fine bubble bathing apparatus according to 1.   The said microbubble generation means is provided in the said microbubble consumption part, and is integrated with the said microbubble consumption part, The microbubble bathing apparatus of any one of Claims 1-3 characterized by the above-mentioned.   The said fine bubble consumption part consists of the said fine bubble generation | occurrence | production means, It has a bathtub heat retention mechanism which heat-transfers the heat | fever discharge | released from this fine bubble generation | occurrence | production means to the said bathtub, and heats this bathtub. The fine bubble bath apparatus as described.   The microbubble bathing device according to any one of claims 1 to 5, wherein the size of the microbubbles is 5 to 200 µm.   7. The fine bubble bathing device according to claim 1, wherein a volume ratio of liquid: gas contained in the fine bubbles is 4: 6 to 1: 9.

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