JP4807967B2 - Bathing equipment - Google Patents

Description

  The present invention relates to a bathing device that can generate fine bubbles in a bathing bath or can be used as a shower device.

  It is widely known that when air bubbles are generated in a bathing bath, an appropriate stimulus is given to the bather's skin, and a massage effect, fatigue recovery effect, and the like are obtained. For this reason, various types of bubble generating devices have been developed in the past. As related to the present application, air is generated in the hot water by pumping air to the bubble generating means arranged at the bottom of the bathtub. (For example, refer to Patent Documents 1 and 2), or a device that generates air bubbles in hot water by introducing air into a bubble generating device introduced into a bathtub (for example, refer to Patent Documents 3 and 4).

JP 2004-89391 A Japanese Patent Laid-Open No. 2001-112661 Japanese Utility Model Publication No. 7-39828 JP-A-11-188070

  Since the outer diameter of the bubbles formed by the bubble generators described in Patent Documents 1 to 4 is a relatively large one on the order of mm, most of the bubbles sent into the hot water rise rapidly in the hot water. , It will be lost on the surface of the hot water. Therefore, the effect obtained by these bubbles is about the massage effect for bathers or the effect of circulating hot water in the bathtub.

  The problem to be solved by the present invention is to provide a bathing device capable of obtaining an excellent blood circulation promoting action, sedation action, analgesic action and autonomic nerve regulating action.

The bathing appliance of the present invention is a fluid swirl chamber formed by a peripheral wall provided surrounding a virtual center line and partition walls provided at both ends of the peripheral wall in the virtual center line direction, and the virtual center line A fluid introduction path provided in communication with the fluid swirl chamber for introducing a fluid into the fluid swirl chamber along a direction of a twisted position, and the fluid swirl chamber for introducing a gas into the fluid swirl chamber. A fine bubble generator having a gas introduction path established in one of the partition walls and a discharge port established in the other partition wall of the fluid swirl chamber, and into the fluid swirl chamber via the liquid introduction path. comprising a liquid supply means for feeding liquid, and the discharge port of the plurality of the micro-bubble generator, as the angle of the imaginary center lines of the respective front SL fluid whirling chamber is 180 ± 5 degrees It was opposed and, respectively Each the gas turning direction of the gas-liquid swirling flow generated in serial fluid swirling chamber is introduced from the liquid and the gas introduction path is arranged mirror-symmetrical structure, it is introduced from the liquid introduction path so as to be the same direction Generating a gas-liquid swirl flow that rotates in the same direction around the virtual center line in the fluid swirl chamber, thereby causing negative pressure cavities to appear along the virtual center line, respectively. The fluid mixed with fine bubbles generated by being threaded by the gas-liquid swirling flow at the end of the discharge port side is discharged from the respective discharge ports while swirling in the same direction, and the fluid containing the fine bubbles is mutually discharged. The swirling flow is caused to collide and diffuse around the area where the discharge ports face each other.

  In such a configuration, when the liquid is supplied to the fluid swirl chamber via the liquid introduction path by the liquid supply means, the liquid swirls along the direction in which the liquid is twisted with respect to the virtual center line of the fluid swirl chamber. Since it is fed into the room, a swirl flow that rotates around the virtual center line is generated in the fluid swirl chamber, and a negative pressure cavity is formed along the virtual center line that is the center part of the swirl flow. For this reason, gas (air in the atmosphere) is introduced into the fluid swirl chamber via a gas introduction path established in one partition wall of the fluid swirl chamber, and a gas-liquid swirl flow is formed in the fluid swirl chamber.

  This negative pressure cavity is also called vortex cavitation, but the tip of the grown vortex cavitation is shredded by a gas-liquid swirl flow, and becomes a fluid mixed with a large amount of fine bubbles, and is opened in the other partition wall of the fluid swirl chamber. Discharged from the outlet. Therefore, if the operation is performed with the bathing appliance of the present invention immersed in hot water in the bathtub, a large amount of fluid mixed with fine bubbles can be discharged toward the hot water, and the bathing appliance is in the atmosphere. If the operation is performed in a state, a large amount of fluid containing fine bubbles can be discharged from the discharge port toward a target such as a part of the human body.

When a fluid containing fine bubbles is discharged from the discharge port in this way, at the same time, an ultrasonic wave of 28 kHz or higher is generated in a continuous band from the audible range, so that the human body or fine bubbles immersed in hot water by the generated ultrasonic wave blood circulation promoting action on human exposure to the mixed fluid, sedation, it is presumed that it is possible to obtain the analgesic and autonomic modulating effects.

For example, sedation and analgesic action for joint pain is effective with an ultrasonic wave having an output of about 500 mW / cm ^{2 in} a frequency band of 30 kHz to 1 MHz, and 1 W in a frequency band of 10 kHz to 1 MHz for promoting healing of a fractured part. It is said that ultrasonic waves with an output of about / cm ² are effective.

  Here, if an oxygen enricher is provided in a part of the gas introduction flow path, it is possible to supply air whose oxygen concentration has been increased by the oxygen enricher into the fluid swirl chamber, so It is possible to discharge a liquid containing fine bubbles containing air having a high oxygen concentration from the discharge port toward the hot water in the bathtub. Therefore, the oxygen concentration in the upper part of the bathtub is increased by the oxygen evaporated from the hot water in the bathtub, and the bather can obtain a refreshing feeling. Moreover, since hot water with a high dissolved oxygen concentration also has an action of alleviating pain symptoms in the human body, an effect of sedating a site having such symptoms can be obtained.

  In addition, an air pump may be disposed in a part of the gas introduction path in order to pump air into the fluid swirl chamber. With such a configuration, even when the fine bubble generator is arranged at a high water pressure position such as near the bottom of the bathtub, or when the resistance when air passes through the oxygen enricher is large, Since air can be reliably supplied into the fluid swirl chamber, fluid containing fine bubbles can be stably discharged from the discharge port.

Furthermore, in the present invention, a plurality of the fine bubble generators are disposed so that the respective discharge ports face each other. Therefore, a fluid containing fine bubbles mixed and discharged from each discharge port, The ultrasonic waves generated from the discharge outlets of each other collide with each other. At this time, relatively large bubbles with an outer diameter of several hundreds of micrometers are mechanically destroyed, and ultrasonic waves are also generated when bubbles break. To do. As a result, the ultrasonic wave combined and synthesized with the ultrasonic wave generated from the fine bubble generator described above is generated in a band state, and thus it is possible to deal with various symptoms having different adaptive frequencies.

Further, in the bathing appliance of the present invention , the plurality of fine bubble generators are opposed to each other so that the angle formed by the virtual center lines in each fluid swirl chamber is 180 ± 5 degrees, and each fluid swirl turning direction of the gas-liquid swirling flow generated in the chamber is arranged such that the same direction. With such a configuration, the swirling directions of the fluids mixed with the fine bubbles discharged from the discharge ports of the respective fine bubble generators coincide with each other, and the virtual center lines of the swirling flows are substantially identical. Since they are arranged on the line, the synergistic effect exerts an action that exceeds twice the action of one fine bubble generator, further improving the above-described action. If the angle formed by the virtual center lines of the fluid swirl chamber is out of the range of 180 ± 5 degrees, the above-described effect is greatly reduced, but it is about twice as much as that obtained by one fine bubble generator. The effect can be obtained.

  In this case, a mixing chamber that communicates with the plurality of discharge ports is provided between the discharge ports arranged opposite to each other, and a fluid containing fine bubbles discharged into the mixing chamber is discharged to a part of the mixing chamber. An outlet can also be opened. With such a configuration, the fluid mixed with fine bubbles discharged from each discharge port is agitated while colliding with each other in the mixing chamber, and then discharged from the discharge port. Therefore, it becomes possible to discharge the fluid mixed with fine bubbles toward a desired site, and a massage effect can be obtained.

  According to the present invention, the following effects can be achieved.

(1) A fluid swirl chamber formed by a peripheral wall provided surrounding the virtual center line and partition walls provided at both ends of the peripheral wall in the virtual center line direction, and a twisted position with respect to the virtual center line A fluid introduction path provided in communication with the fluid swirl chamber for introducing fluid into the fluid swirl chamber along a direction of forming a fluid, and one of the fluid swirl chambers for introducing gas into the fluid swirl chamber. A fine bubble generator having a gas introduction path established in the partition and a discharge port established in the other partition of the fluid swirl chamber, and liquid is fed into the fluid swirl chamber via the liquid introduction path By providing the liquid supply means, a blood circulation promoting action, a sedative action, an analgesic action and an autonomic nerve adjusting action can be obtained.

(2) If an oxygen enricher is provided in a part of the gas introduction path, it is possible to discharge a fluid mixed with fine bubbles containing air having a higher oxygen concentration than air in the atmosphere from the discharge port. The dissolved oxygen concentration in the fluid is increased, and a sedative effect, analgesic effect, and refreshing feeling can be obtained.

(3) If an air pump is disposed in a part of the gas introduction path to pump air into the fluid swirl chamber, the fine bubble generator is disposed in a high fluid pressure region, or the air is an oxygen enricher. Even when the resistance at the time of passing through is large, it is possible to reliably supply air into the fluid swirl chamber, so that a fluid containing fine bubbles can be stably discharged.

(4) a plurality of said micro-bubble generator, by which is disposed opposite each of the discharge ports, is promoted the destruction of bubbles collide with each other fluid fine air bubbles, generated ultrasonic wave in a band state Therefore, it is possible to deal with various symptoms with different adaptive frequencies.

(5) A plurality of the fine bubble generators are opposed to each other so that an angle between virtual center lines in each fluid swirl chamber is 180 ± 5 degrees, and the gas and liquid generated in each fluid swirl chamber By arranging the swirling flows so that the swirling directions are the same, the swirling directions of the fluids containing fine bubbles discharged from the discharge ports of the respective fine bubble generators coincide with each other, and the swirling flow Since the virtual center lines are arranged on substantially the same straight line, the synergistic effect exerts an action that is more than twice that of one fine bubble generator, further improving the above-described action.

(6) A mixing chamber that communicates with a plurality of the discharge ports is provided between the discharge ports arranged opposite to each other, and a fluid containing fine bubbles discharged into the mixing chamber is discharged to a part of the mixing chamber to the outside. If the discharge port is opened, it becomes possible to discharge a fluid mixed with fine bubbles toward a desired site, and a massage effect can be obtained.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a diagram showing a usage state of the bathing fixture which is implementation of the invention, FIG 2 is a side view of a bathing device shown in FIG. 1, FIG. 3 is a front view of a bathing device shown in FIG. 1, FIG. 4 FIG. FIG. 5 is a sectional view taken along line BB in FIG. 4, FIG. 6 is a sectional view taken along line AA in FIG. 2, and FIG. 7 is a bathing shown in FIG. The figure which shows the fine bubble generation | occurrence | production state in an instrument, FIG. 8 is a figure which shows the other use condition of the bathing instrument shown in FIG.

  As shown in FIG. 1, the bathing appliance 10 of this embodiment is immersed in the hot water HW of the bathtub BT in the bathroom BR, or, as shown in FIG. A fine bubble generating unit 11 that can be used by being held and a gas-liquid supply device 24 arranged outside the bathtub BT for supplying hot water HW and air to the fine bubble generating unit 11 are provided. Then, as shown in FIG. 1, the fluid (hot water HW) mixed with the fine bubbles NB is discharged from the fine bubble generator 11 into the hot water HW in the bathtub BT, or as shown in FIG. The fluid (hot water HW) mixed with the fine bubbles NB can be discharged toward a part of the water.

  As shown in FIGS. 1 to 4, two fine bubble generators 12 and 13 are arranged in the fine bubble generator 11, and the gas-liquid supply device 24 supplies a liquid introduction path to the fine bubble generators 12 and 13. A pump P that circulates and supplies the hot water HW in the bathtub BT via 18, and an air pump AP that supplies air in the atmosphere to the fine bubble generators 12 and 13 via the gas introduction paths 15, 14 a, and 14 b An oxygen enricher 16 for increasing the oxygen concentration in the air supplied to the fine bubble generators 12 and 13, and an air cleaner 17 for removing impurities such as dust when inhaling air in the atmosphere, A filter 19 is provided at the suction port of the liquid introduction path 18. The gas-liquid supply device 24 operates with a direct current obtained by stepping down and rectifying the AC 100 V current supplied from the commercial power source with the power adapter AD.

  The gas introduction path 15 is divided into two gas introduction paths 14 a and 14 b by the distribution device 23, and the air in the atmosphere is sucked through the air cleaner 17 by the air pump AP and is oxygen enriched by passing through the oxygen enricher 16. Air is supplied to the fine bubble generators 12 and 13 in the fine bubble generator 11 via the gas introduction paths 14a and 14b, respectively. Further, the hot water HW in the bathtub BT sucked through the filter 19 is supplied to the fine bubble generators 12 and 13 through the liquid introduction path 18 and the liquid introduction paths 18a and 18b branched therefrom by the pump P provided in the gas-liquid supply device 24. Supply.

  The fine bubble generating part 11 immersed in the hot water HW in the bathtub BT is formed by arranging two fine bubble generators 12 and 13 in a substantially rectangular parallelepiped casing 11a. Moreover, these fine bubble generators 12 and 13 are arrange | positioned in the casing 11c in the state which mutually opposed the discharge port 28 on the same straight line so that it may mention later.

Here, the structure and function of the fine bubble generators 12 and 13 will be described with reference to FIGS. Incidentally, fine-bubble generator 12 and 13, as shown in FIG. 6, a structure specular symmetry to each other in a state of being disposed in the casing 11a, for components are the same, or less, fine-bubble generator 13 will be described, and the fine bubble generator 12 will be denoted by the same reference numerals as those of the fine bubble generator 13 and the description thereof will be omitted.

  The fine bubble generator 13 includes a fluid swirl chamber 25 formed by a peripheral wall 25d provided surrounding the virtual center line 25c and partition walls 25a, 25b provided at both ends of the peripheral wall 25d in the direction of the virtual center line 25c. A liquid introduction path 18b (18a) provided in communication with the fluid swirl chamber 25 for introducing a fluid (hot water HW) into the fluid swirl chamber 25 along a direction forming a twisted position with respect to the virtual center line 25c; In order to introduce gas (air) into the fluid swirl chamber 25, the gas introduction path 14 b (14 a) established in one partition wall 25 a of the fluid swirl chamber 25 and the other partition wall 25 b of the fluid swirl chamber 25 are established. And a discharge port 28. The liquid introduction path 18b (18a) communicates with the fluid swirl chamber 25 through the liquid introduction port 27, and the gas introduction path 14b (14a) communicates with the fluid swirl chamber 25 through the gas introduction port 26.

  As shown in FIG. 1, when the pump P and the air pump AP of the gas-liquid supply device 24 are operated while the fine bubble generating unit 11 and the filter 19 of the liquid introduction path 18 are immersed in the hot water HW in the bathtub BT, The hot water HW sucked from the BT via the filter 19 and the liquid introduction path 18 flows into the fluid swirl chamber 25 from the liquid introduction port 27 via the liquid introduction path 18b, and as shown in FIG. A swirling flow R is generated in the fluid swirling chamber 25. Then, a substantially cylindrical negative pressure cavity V appears along substantially the virtual center line of the swirl flow R, and one end of the negative pressure cavity V is opened in the partition wall 25a of the fluid swirl chamber 25. The negative pressure cavity is located near the gas inlet 26 and the other end of the negative pressure cavity V is located near the outlet 28 provided in the partition wall 25 b of the fluid swirl chamber 25. The end of the part V is in a constricted state.

  Since the negative pressure of the negative pressure cavity V appearing in the fluid swirl chamber 25 as described above causes a negative pressure also in the vicinity of the gas inlet 26, the suction force and the pumping force of the air pump AP caused by this negative pressure Air sucked from the atmosphere via the gas introduction paths 15 and 14 b continuously flows from the gas inlet 26 into the negative pressure cavity V in the fluid swirl chamber 25 and is introduced into the fluid swirl chamber 25. A swirling flow R is formed together with the hot water HW.

  The air that has flowed into the negative pressure cavity V is entrained in the swirl flow R generated in the fluid swirl chamber 25 and discharged from the discharge port 28. At this time, the end of the negative pressure cavity V on the discharge port 28 side is threaded by the swirling flow R to become a fine bubble NB, and a fluid (hot water) mixed with the fine bubble NB together with a fluid forming the swirling flow R (hot water HW). HWH) and discharged from the discharge port 28 into the mixing chamber 29. The mixing chamber 29 is provided between the fine bubble generators 12 and 13 disposed so as to face each other, and communicates with each discharge port 28.

  Thus, the fluid (hot water HW) mixed with the fine bubbles NB discharged from the discharge ports 28 of the fine bubble generators 12 and 13 into the mixing chamber 29 is circulated in the mixing chamber 29 and then opened in the casing 11a. It is discharged from the discharge port 29a into the hot water HW in the bathtub BT. Thus, by discharging the fluid (hot water HW) mixed with the fine bubbles NB from the discharge port 29a into the hot water HW, oxygen, nitrogen, etc. can be supplied and dissolved in the hot water HW in the bathtub BT. For this reason, the fluid (hot water HW) mixed with fine bubbles NB having a high dissolved concentration such as oxygen circulates in the bathtub BT evenly, and the blood circulation promoting action on the body of the bather M immersed in the hot water HW. It is possible to obtain a heat action, a sedative action, an analgesic action and an autonomic nerve regulating action.

  Such blood circulation promoting action, thermal action, sedation action, analgesic action, and autonomic nerve adjustment action are not limited to the part directly exposed to the fluid (hot water HW) mixed with the fine bubbles NB, but extend to other parts. Pain in the hands, feet, lower back, etc. such as pain and muscle pain can be reduced or eliminated. Further, in the state where the bather M is immersed in the hot water HW in the bathtub BT, the fine bubble generating unit 11 is put into the hot water HW, and the pump P and the air pump AP of the gas-liquid supply device 24 are operated. Since it can be used only by itself, it is very easy to use.

  On the other hand, inside the fine bubble generators 12 and 13, while air is introduced from one end of the negative pressure cavity V appearing in the fluid swirl chamber 25, it is fine in the extending direction of the other end. The fluid mixed with bubbles NB is discharged. For this reason, this negative pressure cavity V continues to exist stably near the virtual center line 25c of the fluid swirl chamber 25, and both ends thereof are also stably located near the gas inlet 26 and the outlet 28, respectively. Therefore, the negative pressure cavity portion V does not contact the inner surface of the fluid swirl chamber 25 and the like, and cavitation erosion does not occur in the fine bubble generators 12 and 13, which is effective for improving durability.

  Further, since the fine bubble generators 12 and 13 have a simple structure in which the liquid introduction port 27, the gas introduction port 26 and the discharge port 28 are opened in the substantially cylindrical fluid swirl chamber 25, the handling is easy. Since there is no fine channel that is likely to be clogged with foreign matter that flows in with hot water HW or air, regular maintenance is not required.

  Further, as shown in FIG. 6, the gas introduction port 26 opened in the partition wall 25 a of the fluid swirl chamber 25 is disposed so as to protrude inward along the virtual center line 25 c of the fluid swirl chamber 25, and the fluid swirl chamber A smoothly continuous concave curved surface 21 is provided between the peripheral wall 25d of 25 and the gas inlet 26. For this reason, as shown in FIG. 7, air is introduced from the end of the negative pressure cavity V formed in the fluid swirl chamber 25 on the side of the partition wall 25a, and finer in the extending direction of the end on the side of the partition wall 25b. A fluid (hot water HW) mixed with bubbles NB is discharged. Therefore, the negative pressure cavity V continues to exist stably in the vicinity of the virtual center line 25c of the fluid swirl chamber 25, and both ends thereof are also stably positioned in the vicinity of the discharge port 28 and the gas inlet 26.

  As described above, the gas inlet 26 is disposed so as to protrude to the inside of the fluid swirl chamber 25 and the concave curved surface 21 is provided, whereby the end of the negative pressure cavity V on the gas inlet 26 side moves irregularly. Can be prevented. For this reason, cavitation erosion or the like does not occur in the partition walls 25a and 25b of the fluid swirl chamber 25, and excellent durability is obtained. As shown in FIGS. 5 and 6, a preliminary swirling portion 25 p having a larger inner diameter than other regions is provided in a region near the partition wall 25 b of the fluid swirl chamber 25. For this reason, the hot water HW introduced from the liquid inlet 27 can be once rectified in the preliminary swirl unit 25p and then introduced into the entire fluid swirl chamber 25. As a result, the pressure fluctuation of the hot water HW introduced from the liquid introduction port 27 is buffered, and the movement of the negative pressure cavity V due to the pressure fluctuation can be prevented, thereby preventing the occurrence of cavitation erosion. it can.

  In addition, as shown in FIG. 6, in the fine bubble generators 12 and 13, the opening area of the liquid introduction port 27 is larger than the opening area of the discharge port 28, so that the hot water fed into the fluid swirl chamber 25 is provided. The outlet of the fluid mixed with the fine bubbles NB is smaller than the inlet of the HW. Accordingly, the liquid pressure in the fluid swirl chamber 25 is increased by the pressure of the hot water HW fed by the pump P, and the flow of fluid mixed with the fine bubbles NB discharged from the discharge port 28 is increased. In addition, a fluid (hot water HW) mixed with the fine bubbles NB is discharged from the discharge port 29a. For this reason, the circulation of the hot water HW in the bathtub BT becomes good, the massage action on the body of the bather M immersed in the hot water HW is enhanced, and the blood circulation promoting action is also good.

  In this way, a large amount of fluid (hot water HW) mixed with the fine bubbles NB formed by the swirl flow R generated in the fluid swirl chamber 25 passes through the discharge ports 28a through the discharge ports 29a in the hot water HW in the bathtub BT. Since it can be discharged into the body, it enhances blood circulation, heat, sedation, analgesia, and autonomic nerve adjustment on the body immersed in HW hot water. An enhancement effect can be obtained.

  Moreover, the ultrasonic wave considered to be caused by the fluid and cavitation mixed with the fine bubble NB swirling in the fine bubble generators 12 and 13 is generated from the discharge ports 28 of the fine bubble generators 12 and 13. Although it was possible to observe this in the vicinity of the discharge port 28, it is speculated that such an ultrasonic wave enhances the blood circulation promoting action and contributes to the sedation action, analgesic action, and autonomic nerve regulating action described above. Is done. Furthermore, when the fine bubble generators 12 and 13 are made of a metal material such as stainless steel, ultrasonic waves are more easily transmitted when they are made of a synthetic resin material, and strong ultrasonic waves are generated near the discharge port 28. It is confirmed that there is a tendency. Therefore, if the fine bubble generators 12 and 13 are formed of a synthetic resin material, the ultrasonic waves generated in the fine bubble generators 12 and 13 can be efficiently radiated into the hot water HW in the bathtub BT.

  In this embodiment, since the oxygen enricher 16 is provided in the gas introduction path 15, the air whose oxygen concentration has been increased by passing through the oxygen enricher 16 can be supplied to the fluid swirl chamber 25. . Accordingly, a large amount of fluid (hot water HW) mixed with fine bubbles NB containing air having an oxygen concentration higher than that of air in the atmosphere is discharged from the discharge port 28 into the hot water HW via the discharge port 29a. For this reason, the dissolved oxygen concentration in the hot water HW in the bathtub BT and the oxygen concentration in the upper part of the bathtub BT are increased, and a sedative action, an analgesic action, and a refreshing feeling can be obtained.

  In the present embodiment, as the oxygen enricher 16, a device incorporating a plurality of oxygen enriched films 16a formed of an organic polymer compound is used. Since the passing speed of nitrogen molecules passing through the oxygen-enriched film 16a is slower than the passing speed of oxygen, the air sucked from the atmosphere passes through the oxygen-enriched film 16a, so that the oxygen content is higher than that of the atmosphere. A high proportion of air is formed. Generally, the ratio of oxygen to nitrogen in the air in the atmosphere is about 21% oxygen and about 79% nitrogen, but in the air after passing through the oxygen enricher 16, the oxygen is about 30% and the nitrogen is about 70%. Thus, the oxygen content is increased.

  In addition, since the air pump AP for pumping air into the fluid swirl chamber 25 is disposed in the gas introduction path 15, the microbubble generator 11 is placed in a region where the water pressure is high due to a deep bath BT. Even in the case of being arranged or when the resistance when air passes through the oxygen enricher 16 is large, the air can be reliably supplied into the fluid swirl chamber 25. For this reason, the fluid mixed with the fine bubbles NB can be stably discharged into the hot water HW in the bathtub BT.

  On the other hand, the plurality of fine bubble generators 12 and 13 are arranged such that the virtual center lines 25c of the fluid swirl chambers 25 are on the same straight line and the discharge ports 28 face each other. Therefore, the ultrasonic waves generated near the respective discharge ports 28 and from the fine bubble generators 12 and 13 overlap with the ultrasonic waves generated by the collision of the fine bubbles NB and the fluid (hot water HW) to break the bubbles, It becomes a band-shaped ultrasonic wave with a wide frequency band, and is irradiated to the body of the bather M immersed in the hot water HW. Thereby, with respect to the body immersed in the hot water HW, an excellent blood circulation promoting action, a thermal effect, a sedative action, an analgesic action and an autonomic nerve adjusting action can be obtained.

  In addition, a mixing chamber 29 communicating with the discharge ports 28 is provided between the plurality of discharge ports 28 arranged to face each other, and a part of the mixing chamber 29 is mixed with the fine bubbles NB discharged into the mixing chamber 29. A discharge port 29a for discharging the fluid to the outside is provided. Accordingly, it is possible to release a fluid (hot water HW) mixed with fine bubbles NB toward a desired site, and thereby an excellent massage effect can be obtained. Therefore, a blood circulation promoting effect, a thermal effect, a sedative effect, and an analgesic effect. And the autonomic nerve adjustment action can be further improved.

In the present embodiment, as shown in FIG. 7, liquid introduction is performed so that the swirling directions of the swirling flow R generated in the fluid swirling chambers 25 of the plurality of fine bubble generators 12 and 13 are the same. path 18a, and 18b it is piping. Since the liquid to be stored in the bath tank BT is not limited to the hot water HW, and containing water or other liquid may be subjected to a bath in the state shown in FIG.

  In addition, since the shape of bathtub BT is not specifically limited, it can be made shallow or deep according to use conditions. Moreover, in this embodiment, the inside of the bathtub BT is filled with the hot water HW, and the fine bubble generator 11 is placed in a posture such that the virtual center line 25c of the fluid swirl chamber 25 of the fine bubble generators 12 and 13 is in a horizontal state. Although it is immersed in the HW, it is not limited to such an arrangement, so that the virtual center line 25c is in a vertical state or an oblique state depending on the shape of the bathtub BT or the desire of the bather M. The bubble generating part 11 can also be arranged.

  For example, as shown in FIG. 8, a bather M who puts hot water HW shallowly in a bath BT and soaks the lower body part in the hot water HW, holds the fine bubble generating part 11 with his hand H and approaches the body. It can also be used such that the fluid (hot water HW) mixed with the fine bubbles NB discharged from the generator 11 is sprayed on the body. If used in this way, the bather M can bathe the body with ultrasonic waves generated from the fine bubble generating unit 11 at a close distance, so that the blood circulation promoting effect, the thermal effect, the sedative effect, the analgesic effect and Autonomic nerve adjustment action can be obtained.

Next, a reference example will be described with reference to FIGS. FIG. 9 is a perspective view showing a use state of a bathing apparatus as a reference example , and FIG. 10 is a view showing another use state of the bathing apparatus shown in FIG. In the structure portion of incoming bath instrument 30, portions exhibiting the same function as components of the bathing fixture 10 described above, its description is omitted with the same reference numerals as Figures 1-8.

As shown in FIG. 9, input bath instrument 30 includes a micro-bubble generating unit 31 which is immersed in hot water HW in the bathtub BT, liquid introducing hot water HW in the bathtub BT sucked via the liquid introduction path 18 A pump P that supplies the fine bubble generating unit 31 via the path 18b and a gas introduction path 15 that sucks air in the atmosphere and supplies the air to the fine bubble generating unit 31 are provided. The fine bubble generator 31 includes the single fine bubble generator 13 shown in FIGS. 4 and 5.

  When the pump P is operated in the state as shown in FIG. 9, the hot water HW sucked from the bathtub BT is supplied into the fine bubble generator 13 through the liquid introduction path 18b and sucked from the air by natural suction. The air thus supplied is supplied into the fine bubble generator 13 via the gas introduction path 15. As a result, as shown in FIG. 7, the swirl flow R and the negative pressure cavity V are formed in the fine bubble generator 13, and the fluid (hot water HW) mixed with the fine bubbles NB generated thereby is discharged from the discharge port 28. Is discharged into the hot water HW in the bathtub BT.

  Therefore, as in the case of the bathing device 10, the bather W immersed in the hot water HW in the bathtub BT can obtain a blood circulation promoting action, a thermal effect, a sedative action, an analgesic action, and an autonomic nerve adjusting action. In the case of the bathing appliance 30, the fine bubble generating unit 31 includes one fine bubble generator 13, and air is supplied to the fine bubble generator 13 by natural intake to eliminate an air pump, an oxygen enricher, and the like. Therefore, the structure is simple, and it is small and light. Therefore, even when the bathroom BR or the bathtub BT is narrow, it can be used relatively easily.

  Moreover, the bathing appliance 30 can also be used as a shower appliance, if the fine bubble generating part 31 is taken out from the hot water HW and the grip part 32 is grasped by hand as shown in FIG. In this case, if the on-off valve 15a provided in the gas supply path 15 is opened, the fluid (hot water HW) mixed with the fine bubbles NB is discharged from the discharge port 28. By spraying this on the body, In addition, a blood circulation promoting action, a thermal effect, a sedative action, an analgesic action and an autonomic nerve regulating action can be obtained. In this case, as shown in FIG. 8, it is also possible to use the discharge port 28 of the fine bubble generating unit 31 close to the body, and at this time, the same effect as in the case of FIG. 8 can be obtained. .

  On the other hand, if the on-off valve 15b provided in the gas introduction path 15 is closed, the supply of air is stopped, and the hot water HW discharged from the discharge port 28 is skirted while rotating in the direction of the arrow S as shown in FIG. After the hot water film 33 is discharged, a large amount of hot water droplets 34 formed by splitting the skirt-like hot water film 33 are rotated and diffused. For this reason, the outstanding massage effect can be acquired by spraying such a hot water drop 34 on a body. Moreover, if the hot water droplet 34 discharged | emitted from the discharge outlet 28 is sprayed on the body with the hair and soap with shampoo, the defoaming effect superior to the conventional shower can be acquired.

Next, with reference to FIG. 11 to FIG. 13, another reference example related to the fine bubble generating part constituting the bathing appliance will be described. FIG. 11 is a perspective view showing another reference example related to the fine bubble generating unit, FIG. 12 is a diagram showing a use state of the bathing appliance provided with the fine bubble generating unit shown in FIG. 11, and FIG. It is a perspective view which shows a reference example . In addition, in the component part of the reference example shown in FIGS. 11-13, about the part which exhibits the same function as the component part of the bathing appliance 10 mentioned above, the same code | symbol as FIGS. 1-8 is attached | subjected and description is abbreviate | omitted. .

  In the fine bubble generating unit 41 shown in FIG. 11, the two fine bubble generators 12 and 13 are arranged so that the discharge ports 28a and 28b face the same direction and the virtual center lines (see FIG. 6) are parallel to each other. None, and the liquid introduction paths 18a, 18b are arranged in the casing 41a in a state where both are located between the two fine bubble generators 12, 13.

  If the fine bubble generating part 41 having such a structure is arranged instead of the fine bubble generating part 11 of the bathing device 10 shown in FIG. 1 to form a bathing device 40 as shown in FIG. As seen from the position facing the air outlet 28b, the fluid mixed with the fine bubbles NB is discharged from the left discharge port 28a while turning clockwise, and the fluid containing the fine bubbles NB is turned counterclockwise from the right discharge port 28b. Discharged. Thereby, since it becomes possible to supply the fluid (hot water HW) mixed with two types of fine bubbles NB having different swirl directions to the hot water HW in the bathtub BT, the above-described blood circulation promoting action, thermal effect, A sedative action, an analgesic action, and an autonomic nerve regulating action can be obtained.

  On the other hand, in the fine bubble generator 51 shown in FIG. 13, the two fine bubble generators 12 and 13 are arranged so that the respective discharge ports 28a and 28b face the same direction and the virtual center lines (see FIG. 6) are mutually connected. The two liquid introduction paths 18a and 18b are arranged in the casing 51a so as to be parallel to each other and located outside with the two fine bubble generators 12 and 13 interposed therebetween.

  If the fine bubble generating part 51 having such a structure is arranged in place of the fine bubble generating part 11 of the bathing device 10 shown in FIG. 1 to form a bathing device (not shown), it faces the discharge ports 28a and 28b. From the left side, the fluid mixed with the fine bubbles NB is discharged from the left discharge port 28b while turning counterclockwise, and the fluid containing the fine bubbles NB is discharged from the right discharge port 28a while turning clockwise. . As a result, it becomes possible to supply fluids mixed with two types of microbubbles NB having different swirl directions to the hot water of the bathtub, so that the blood circulation promoting action, the thermal effect, the sedative effect, and the analgesic effect as described above And an autonomic nerve adjustment action can be obtained.

  In addition, in the fine bubble generating parts 41 and 51 shown in FIGS. 11 to 13, a fine valve is provided by providing a switching valve (not shown) at a branch portion between the liquid introduction path 18 and the liquid introduction paths 18 a and 18 b. The hot water HW can be supplied to both the generators 12 and 13, or the hot water HW can be supplied to only one of them.

  As described above, in the fine bubble generating unit 11 constituting the bathing apparatus 10 shown in FIG. 1, as shown in FIGS. 6 and 7, a plurality of fine bubble generators 12 and 13 are provided in the respective fluid swirl chambers 25. The virtual center lines 25c are opposed to each other at an angle of 180 degrees, and the swirling directions of the swirling flows R generated in the fluid swirling chambers 25 of the plurality of fine bubble generators 12 and 13 are the same. The liquid introduction paths 18a and 18b are piped so as to be in the direction. That is, the virtual center lines 25c are positioned on the same straight line, and the swirl directions of the swirl flows R generated in the fluid swirl chambers 25 are configured to coincide with each other. Accordingly, a counterclockwise swirl flow R is generated in the fluid swirl chamber 25 of the fine bubble generator 12, and a clockwise swirl flow R is generated in the fluid swirl chamber 25 of the fine bubble generator 13. Note that the expressions “clockwise” and “counterclockwise” are counterclockwise with “clockwise” as the clockwise direction based on the state in which the respective discharge ports 28 are viewed from the inside of the fine bubble generators 12 and 13. The rotation is “counterclockwise” (hereinafter, the same is expressed).

  When the fine bubble generating unit 11 having such a structure is operated by being immersed in the hot water HW in the bathtub BT, as shown in FIG. 7, the fine bubble NB mixed from the discharge port 28 of the fine bubble generator 12 is obtained. Hot water is discharged while turning counterclockwise, and hot water mixed with fine bubbles NB is discharged while turning clockwise from the discharge port 28 of the fine bubble generator 13. Thereby, the bather M can obtain an excellent blood circulation promoting action, a thermal effect, a sedative action, an analgesic action, and an autonomic nerve adjusting action.

  Therefore, for comparison with the microbubble generator 11 having such a structure, bathing equipment (not shown) having a structure in which one microbubble generator 12 is immersed in the hot water HW of the bath BT is bathed under the same conditions. As a result, the blood circulation promoting action, the thermal effect, the sedative action, the analgesic action and the autonomic nerve adjusting action felt by the bather M were slightly lower than those of the fine bubble generating part 11. Therefore, the microbubble generator 11 in which the two microbubble generators 12 and 13 are arranged to face each other is more excellent in the blood circulation promoting action and the like than when only one microbubble generator 12 is used. I found out.

Next, with reference to FIGS. 14 to 22, when the arrangement of the two fine bubble generators 12 and 13 is changed, it has been verified what kind of difference occurs with respect to the blood circulation promoting action, etc. The results will be described. 14-22 is a top view which shows the other reference example regarding the arrangement | positioning state of the two fine bubble generators 12 and 13, respectively, The fine bubble generators 12 and 13 currently described in these figures are figures. 1 to 7 having the same structure as the fine bubble generators 12 and 13 shown in FIG.

In the reference example shown in FIG. 14, two fine bubble generators 12 are arranged so that virtual center lines 25 c of the respective fluid swirl chambers 25 (see FIG. 6 and FIG. 7) are parallel to each other. Hot water mixed with fine bubbles NB is discharged from the discharge port 28 of the generator 12 while turning counterclockwise. When the bather M bathes under the same conditions for the bathing equipment provided with the two fine bubble generating parts 12 in such an arrangement form, a certain degree of blood circulation promoting action is obtained, but the bathing shown in FIGS. It has been found that it does not reach the instrument 10.

Next, in the reference example shown in FIG. 15, two fine bubble generators 12 are arranged such that virtual center lines 25 c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) are orthogonal to each other. The hot water mixed with the fine bubbles NB is discharged from the discharge port 28 of the fine bubble generator 12 while turning counterclockwise. When the bather M bathes under the same conditions for the bathing appliance provided with the two fine bubble generating parts 12 having such an arrangement, the blood circulation promoting action is obtained as described above, but FIGS. It turned out that it is low compared with the case where the bathing appliance 10 shown in FIG.

Next, in the reference example shown in FIG. 16, the two fine bubble generators 12 are arranged so that the virtual center lines 25c of the fluid swirl chambers 25 (see FIGS. 6 and 7) form 180 degrees with each other, that is, Arranged so as to be located on the same straight line, the fluid mixed with the fine bubbles NB is discharged from the discharge ports 28 of the two fine bubble generators 12 while turning counterclockwise. When the bather M bathes under the same conditions for the bathing appliance provided with the two fine bubble generating parts 12 of such an arrangement, a certain degree of blood circulation promoting action is obtained as described above. It was found to be lower than when the bathing appliance 10 shown in FIG. 7 was used.

In the case of this reference example , the two fine bubble generators 12 are arranged so that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) form 180 degrees. Since the swirl directions of the swirl flow R (see FIG. 7) in the bubble generator 12 do not match, it is presumed that such a result cannot be obtained.

Next, in the reference example shown in FIG. 17, two fine bubble generators 13 are arranged such that virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) are parallel to each other. The hot water mixed with the fine bubbles NB is discharged from the discharge ports 28 of the two fine bubble generators 13 while turning clockwise. When the bather M bathes under the same conditions for the bathing device in which the two fine bubble generating portions 13 are arranged in this way, a certain degree of blood circulation promoting action is obtained, but the bathing device shown in FIGS. It turned out to be less than 10.

Next, in the reference example shown in FIG. 18, two fine bubble generators 13 are arranged such that virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) are orthogonal to each other. The hot water mixed with the fine bubbles NB is discharged from the discharge port 28 of the fine bubble generator 13 while turning clockwise. When the bather M performs bathing under the same conditions for the bathing device in which the two fine bubble generating portions 13 are arranged in this way, a blood circulation promoting action or the like is obtained, but in the bathing device 10 shown in FIGS. It was found that the obtained blood circulation promoting action was not reached.

Next, in the reference example shown in FIG. 19, the two fine bubble generators 13 are arranged so that the virtual center lines 25c of the fluid swirl chambers 25 (see FIGS. 6 and 7) form 180 degrees with each other, that is, It arrange | positions so that it may be located on the same straight line, and the hot water mixed with the fine bubble NB is discharged from the discharge ports 28 of the two fine bubble generators 13 while turning clockwise. When the bather M bathes under the same conditions for the bathing appliance in which the two fine bubble generating portions 13 are arranged in this way, the blood circulation promoting action similar to the above can be obtained, but shown in FIGS. It was found that this is not the case when the bathing appliance 10 is used. In the case of this reference example , the fine bubble generators 13 are arranged so that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) form 180 degrees with respect to each other, as shown in FIG. Similar to the embodiment, the swirl directions of the swirl flows R (see FIG. 7) in the two fine bubble generators 13 do not coincide with each other, so that it is assumed that a sufficient blood circulation promoting action or the like cannot be obtained. .

Next, in the reference example shown in FIG. 20, the two fine bubble generators 12 and 13 are arranged so that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) are parallel to each other. Then, the hot water mixed with fine bubbles NB is swung counterclockwise from the discharge port 28 of the fine bubble generator 12, and the hot water mixed with fine bubbles NB swirls clockwise from the discharge port 28 of the fine bubble generator 13. It is discharged while. As shown in FIG. 1 to FIG. 7, although a bather M bathes under the same conditions for a bathing appliance provided with the fine bubble generating portions 12 and 13 having such an arrangement, a certain degree of blood circulation promoting action is obtained. It was found that it does not reach the bathing appliance 10.

Next, in the reference example shown in FIG. 21, the two fine bubble generators 12 and 13 are arranged such that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) are orthogonal to each other. The hot water mixed with fine bubbles NB is discharged while turning counterclockwise from the discharge port 28 of the fine bubble generator 12, and the hot water mixed with fine bubbles NB is turned clockwise from the discharge port 28 of the fine bubble generator 13. Discharged. When bather M bathes under the same conditions for bathing equipment provided with fine bubble generating portions 12 and 13 having such an arrangement, the blood circulation promoting action is obtained, but the bathing equipment shown in FIGS. It turned out to be less than 10.

Finally, in the reference example shown in FIG. 22, the two fine bubble generators 12 and 13 are configured such that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7) form an angle of 170 degrees with each other. Are arranged as follows. The hot water mixed with fine bubbles NB is discharged from the discharge port 28 of the fine bubble generator 12 while turning counterclockwise, and the hot water mixed with fine bubbles NB is discharged while turning clockwise from the discharge port 28 of the fine bubble generator 13. Is done. When the bather M bathes under the same conditions for the bathing appliance provided with the fine bubble generating parts 12 and 13 having such an arrangement, a blood circulation enhancing action and the like can be obtained, but as in the above-described embodiment, FIG. It turned out that it does not reach the bathing appliance 10 shown in FIG.

In the case of this reference example , the two fine bubble generators 12 and 13 are arranged so that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIG. 6) form an angle of 170 degrees with each other. Although it is closest to the arrangement form of the bathing device 10 shown in FIG. 7, the actually obtained blood circulation promoting action is lower than that of the bathing device 10. Judging from such a result, as shown in FIGS. 6 and 7, the two fine bubble generators 12 and 13 are arranged so that the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIG. 6) are 180 degrees from each other. In other words, when the swirl directions of the swirl flows R in the fine bubble generators 12 and 13 are aligned with each other, the best blood circulation enhancing action and the like can be obtained. I understand.

  It is to be noted that the blood circulation enhancing action similar to that of the bathing device 10 is obtained because the fine bubble generators 12 and 13 are formed by the virtual center lines 25c of the respective fluid swirl chambers 25 (see FIGS. 6 and 7). Only when the angle is within the range of 180 ± 5 degrees, if the angle is out of the range, the blood circulation promoting action is reduced to about 60%. Accordingly, the angle formed by the virtual center lines 25c of the fluid swirl chambers 25 (see FIGS. 6 and 7) of the fine bubble generators 12 and 13 is preferably within a range of 180 ± 5 degrees, and in particular, 180 degrees. It was found that the best blood circulation promoting action was obtained at this time.

  Although there are many unclear points as to why the most excellent blood circulation promoting action and the like can be obtained by such an arrangement, the fine bubbles discharged from the discharge ports 28 of the fine bubble generators 12 and 13 are opposed to each other. The swirl directions of fluids mixed with NB coincide with each other and the virtual center lines 25c, which are also the virtual center lines of the swirl flow R, are arranged on the same straight line. It is predicted that there will be no.

  The bathing appliance of the present invention can be widely used in a general household bathroom, public bath or hot spring.

It is a diagram showing a usage state of the bathing fixture which is implementation of the invention. It is a side view of the bathing apparatus shown in FIG. It is a front view of the bathing appliance shown in FIG. It is a perspective view which shows the fine bubble generator which comprises the bathing apparatus shown in FIG. It is the BB sectional view taken on the line in FIG. It is AA sectional drawing in FIG. It is a figure which shows the fine bubble generation | occurrence | production state in the bathing apparatus shown in FIG. It is a figure which shows the other use condition of the bathing apparatus shown in FIG. It is a perspective view which shows the use condition of the bathing appliance which is a reference example . It is a figure which shows the other use condition of the bathing apparatus shown in FIG. It is a perspective view which shows the other reference example regarding a microbubble generation | occurrence | production part. It is a figure which shows the use condition of the bathing appliance provided with the fine bubble generation | occurrence | production part shown in FIG. It is a perspective view which shows the other reference example regarding a microbubble generation | occurrence | production part. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators. It is a top view which shows the other reference example regarding arrangement | positioning of two fine bubble generators.

Explanation of symbols

10, 30, 40 Bathing device 11, 31, 41, 51 Fine bubble generating part 11a, 31a, 41a, 51a Casing 12, 13 Fine bubble generator 14a, 14b, 15 Gas introduction path 15a, 15b Open / close valve 16 Oxygen enrichment Vessel 16a Oxygen-enriched film 17 Air cleaner 18 Liquid introduction path 18a, 18b Liquid introduction path 19 Filter 21 Concave surface 23 Branching tool 24 Gas-liquid supply device 25 Fluid swirl chamber 25a, 25b Partition 25c Virtual center line 25d Peripheral wall 25p Preliminary swivel part 26 Gas inlet 27 Liquid inlet 28, 28a, 28b Discharge port 29 Mixing chamber 29a Release port 32 Grip part 33 Hot water film 34 Water drop AD Power adapter AP Air pump BT Bathtub BR Bathroom H Hand HW Hot water M Bather NB Fine bubble P Pump R Swirl S Arrow line V Negative pressure cavity

Claims (4)

A fluid swirl chamber formed by a peripheral wall provided so as to surround the virtual center line and partition walls provided at both ends of the peripheral wall in the virtual center line direction, and a direction forming a twisted position with respect to the virtual center line And a liquid introduction path provided in communication with the fluid swirl chamber for introducing fluid into the fluid swirl chamber, and one of the partition walls of the fluid swirl chamber for introducing gas into the fluid swirl chamber. A fine bubble generator having a gas introduction path formed and a discharge port opened in the other partition wall of the fluid swirl chamber, and a liquid supply for feeding liquid into the fluid swirl chamber via the liquid introduction path and means, and a plurality of said micro-bubble generator, are opposed to the discharge port as the angle of the virtual center lines of the respective front SL Fluid whirling chamber is 180 ± 5 degrees, and, respectively In the fluid swirl chamber Turning the direction of the gas-liquid swirling flow is arranged mirror-symmetrical construction so that the same direction, each of the fluid swirling chamber by gas introduced from the liquid and the gas introduction path is introduced from the liquid introduction path By generating gas-liquid swirling flows that rotate in the same direction around the virtual center line, a negative pressure cavity portion appears along the virtual center line, respectively, and the negative pressure cavity portion on the discharge port side The fluid mixed with fine bubbles generated by being threaded by the gas-liquid swirl flow at the end is discharged while swirling in the same direction from the respective discharge ports, and the fluid mixed with fine bubbles collides with each other, and the swirl flow Is diffused around the area where the discharge port faces.   The bathing apparatus according to claim 1, wherein an oxygen enricher is provided in a part of the gas introduction path.   The bathing apparatus according to claim 1 or 2, wherein an air pump is disposed in a part of the gas introduction path to pump air into the fluid swirl chamber.   A mixing chamber that communicates with a plurality of the discharge ports is provided between the discharge ports that are arranged to face each other, and a discharge port that discharges fluid mixed with fine bubbles discharged into the mixing chamber to the outside in a part of the mixing chamber. The bathing apparatus according to any one of claims 1 to 3, which was established.

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