Hair washing device

Abstract

To provide a hair washing device that enables a user to experience a pseudo-sensation similar to the bursting of carbon dioxide bubbles without using carbon dioxide gas or the like, while achieving a high washing effect.SOLUTION: A beauty treatment apparatus 1 includes a multiphase-flow generating device that mixes and aerates hot or cold water to produce washing water, and a shower head 13 that discharges the washing water. A discharge section 22 of the shower head 13 includes a flow-straightening member 32 of a primary discharge section 53, a processing chamber 41 formed on a downstream side of the flow-straightening member 32, and a secondary outer peripheral discharge surface 52 of a secondary discharge section 50 located on a downstream side of the processing chamber 41.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a hair washing device. [Background technology]

[0002] Conventionally, treatment tables installed in hair salons and other beauty salons have shampoo bowls. Treatments such as shampooing, scalp massage, hair coloring, permanent waving, or hair treatment are performed in the shampoo bowl. For example, as described in Patent Document 1 below, in hair coloring, a chemical is applied to the hair, and after an appropriate time has passed, the chemical is washed off with a shampoo or the like. For hair washing, as described in Patent Document 2 below, carbonated spring water containing dissolved carbon dioxide gas may be used (hereinafter, the technology described in Patent Document 2 will be referred to as the "Publicly Known Invention 2"). The impact of the fine bubbles popping enhances the cleansing effect, and the stimulation of the bubbles popping on the scalp provides a refreshing feeling to the treatment recipient, which is beneficial. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-011436 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-086078 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned two prior art inventions require carbon dioxide gas cylinders to generate the carbonated spring water, which means that carbon dioxide gas cylinders must be purchased periodically, resulting in high costs. Furthermore, consideration must be given to securing a place to store the carbon dioxide gas cylinders, maintaining and managing them, and ensuring safety.

[0005] The present invention has been proposed in view of the above-mentioned circumstances, and aims to provide a hair washing device that can simulate the sensation of carbon dioxide gas popping without using carbon dioxide gas or the like, and that has a high cleaning effect. [Means for solving the problem]

[0006] In order to achieve the above object, the hair washing device of the present invention comprises a multiphase flow generating device that generates wash water by converting hot and cold water for washing hair into a multiphase flow, and a shower head that sprays the wash water, and the water discharge section of the shower head comprises a primary water discharge section that sprays the wash water, a treatment chamber formed downstream of the primary water discharge section, and a secondary water discharge section formed downstream of the treatment chamber, and the wash water discharged from the secondary water discharge section becomes a pseudo-carbonated spring that gives the user a simulated experience of the feeling of carbon dioxide gas popping.

[0007] The hair washing device according to the present invention is characterized in that the water discharge surface of the primary water discharge section is formed by the downstream end surface of a flow straightening section built into the shower head.

[0008] The hair washing device of the present invention is characterized in that the total area of ​​the water outlet holes formed in the secondary water outlet section is smaller than the total area of ​​the water outlet holes formed on the downstream end surface of the straightening section, and the amount of water discharged from the primary water outlet section is greater than the amount of water discharged from the secondary water outlet section.

[0009] The hair washing device according to the present invention is characterized in that the secondary water discharge section has a closed central blocked surface, and the downstream end surface of the flow straightening section faces the central blocked surface.

[0010] The hair washing device of the present invention is characterized in that the primary water discharge section has a central water discharge surface which is the downstream end face of the straightening section and a primary outer peripheral water discharge surface formed on the outer periphery of the central water discharge surface, the secondary water discharge section has a secondary outer peripheral water discharge surface formed on the outer periphery of the central blocking surface, the central water discharge surface is circular, and the diameter of the central water discharge surface is less than the inner diameter of the secondary outer peripheral water discharge surface.

[0011] The hair washing device according to the present invention is characterized in that the secondary water discharger is detachable.

[0012] The hair washing device according to the present invention is characterized in that the treatment chamber contains a carbon dioxide generating agent.

[0013] The hair washing device of the present invention is characterized in that the air content contained in the wash water is less than the amount of water discharged from the secondary water discharge section, the air content contained in the wash water is 1.0 to 4.5 [L / min], and the amount of water discharged from the secondary water discharge section is 4.6 to 9.1 [L / min]. [Effects of the Invention]

[0014] The hair washing device according to the present invention includes a multiphase flow generator that converts hot and cold water used for washing hair into a multiphase flow to generate wash water, and a shower head that discharges wash water. The shower head's water discharge section includes a primary water discharge section that discharges wash water, a treatment chamber formed downstream of the primary water discharge section, and a secondary water discharge section formed downstream of the treatment chamber. The wash water discharged from the secondary water discharge section becomes a pseudo-carbonated spring that simulates the sensation of carbon dioxide gas popping. By passing through the multiphase flow generator, primary water discharge section, and treatment chamber, a large amount of uniform bubbles are generated in the wash water. The sensation of this wash water hitting the hair and scalp is similar to the sensation of carbon dioxide gas popping, achieving a carbon dioxide gas popping sensation without using carbon dioxide gas or other substances. Furthermore, the fine bubbles collide with and pop deposits on the hair, or lift the deposits, thereby achieving a high cleansing effect.

[0015] In the hair washing device of the present invention, the water outlet surface of the primary water outlet is formed by the downstream end surface of the rectifier built into the shower head, which allows users to experience the sensation of carbon dioxide gas popping without using carbon dioxide gas, and provides a high level of cleansing effect.

[0016] In the hair washing device according to the present invention, the total area of ​​the water discharge holes formed in the secondary water discharge section is smaller than the total area of ​​the water discharge holes formed in the downstream end face of the flow straightening section, and the amount of water discharged from the primary water discharge section is greater than the amount of water discharged from the secondary water discharge section. Therefore, the wash water is appropriately retained and agitated in the treatment chamber, and air bubbles are maintained.

[0017] In the hair washing device according to the present invention, the secondary water discharger has a closed central blocked surface, and the downstream end face of the rectifying section and the central blocked surface face each other, and the primary water discharger has a central water discharge surface that is the downstream end face of the rectifying section and a primary outer peripheral water discharge surface formed on the outer periphery of the central water discharge surface, and the secondary water discharger has a secondary outer peripheral water discharge surface formed on the outer periphery of the central blocked surface, the central water discharge surface is circular and the diameter of the central water discharge surface is equal to or less than the inner diameter of the secondary outer peripheral water discharge surface. Therefore, it is possible to simulate the feeling of carbon dioxide gas popping without using carbon dioxide gas or the like, and it also achieves a high cleaning effect.

[0018] In the hair washing device according to the present invention, the secondary water discharger is detachable, which makes it easy to clean and repair the primary water discharger, secondary water discharger, and treatment chamber, and to replace the secondary water discharger.

[0019] The hair washing device according to the present invention has a carbon dioxide generating agent in the treatment chamber. Therefore, in addition to the artificial carbonated spring, the carbonated spring is generated by the carbon dioxide generating agent, and the synergistic effect allows the user to noticeably feel the sensation of carbon dioxide gas popping. Furthermore, it achieves an even higher washing effect.

[0020] In the hair washing device according to the present invention, the amount of air contained in the wash water is less than the amount of water discharged from the secondary water discharger, and the amount of air contained in the wash water is 1.0 to 4.5 [L / min], and the amount of water discharged from the secondary water discharger is 4.6 to 9.1 [L / min]. Therefore, it is possible to simulate the feeling of carbon dioxide gas popping without using carbon dioxide gas or the like. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a perspective view of a beauty salon apparatus having a hair washing device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view of a shampoo bowl used in a hair washing device according to an embodiment of the present invention. [Figure 3] FIG. 3 is a top view of the shower head of the hair washing device according to the embodiment of the present invention. [Figure 4] FIG. 4 is a perspective view of a shower head of a hair washing device according to an embodiment of the present invention. [Figure 5] FIG. 5 is a front view of the shower head of the hair washing device according to the embodiment of the present invention. [Figure 6] FIG. 6 is a side view of the shower head of the hair washing device according to the embodiment of the present invention. [Figure 7] 7 is a cross section taken along line VII-VII in FIG. 5, and is a first cross-sectional side view of the shower head of the hair washing device according to the embodiment of the present invention. [Figure 8] 8 is a cross section taken along line VIII-VIII in FIG. 5, and is a second cross-sectional side view of the shower head of the hair washing device according to the embodiment of the present invention. [Figure 9] FIG. 9 is a bottom view of the shower head of the hair washing device according to the embodiment of the present invention. [Figure 10] FIG. 10 is an explanatory diagram showing a part of how to use the shower head of the hair washing device according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] The following is a description of a hair washing device according to an embodiment of the present invention. Fig. 1 shows a hair washing device 1 that realizes a hair washing device according to a first embodiment of the present invention. Fig. 2 shows a shampoo bowl 10 used in the hair washing device 1.

[0023] 1, the hairdressing and beauty device 1 includes a treatment table 2 used by a person to be treated (not shown), a shampoo bowl 10 disposed behind the treatment table 2 on which the head of the person to be treated is placed, a shower head 13 provided in the shampoo bowl 10, and a multiphase flow generating device (not shown) that generates wash water by converting hot and cold water discharged from the shower head 13 into a multiphase flow. In the description of this embodiment, the hairdressing and beauty device 1 is referred to as a hair washing device, but a hair washing device can be realized by at least having the shower head 13 and the multiphase flow generating device.

[0024] The treatment table 2 has a seat section 3 on which the person to be treated lies and a lifting section 4 that supports the seat section 3 from below. The seat section 3 has a seat section 5 on which the person to be treated sits, a leg rest section 6 connected to the front of the seat section 5 and on which the person to be treated rests their legs, a backrest section 7 connected to the rear of the seat section 5 and on which the person to be treated rests their upper body, and armrest sections 8 located on the left and right sides of the seat section 5 and on which the person to be treated rests their arms. The treatment table 2 is configured such that the seat section 3 rises and falls as the lifting section 4 operates to expand and contract up and down, and the backrest section 7 tilts or rises, changing the angle of the seat section 3. When the backrest section 7 tilts, the seat section 3 becomes horizontal or approximately horizontal. The posture of the treatment table 2 can be changed arbitrarily by operation by the therapist (not shown), or it can automatically change to a predetermined posture.

[0025] The shampoo bowl 10 is for the person to receive treatment by placing their head while lying face up on the seat portion 3. The practitioner stands behind or to the side of the shampoo bowl 10 (or sits on a stool) and performs treatment on the head and hair of the person to be treated. Treatments include, for example, shampooing, scalp massage, hair coloring, permanent waving, hair treatment, or eye makeup. The shampoo bowl 10 is placed on the base portion 9.

[0026] The multiphase flow generator is connected to one of the hot and cold water flow paths because it converts hot and cold water discharged from shower head 13 into a multiphase flow by incorporating air into the hot and cold water. For example, it may be built into the hot and cold water supply unit (not shown) that sends out hot and cold water or into base 9, or it may be connected to the hot and cold water supply unit or base 9 via piping from the outside. In addition, a switch (not shown) that selects whether or not to operate the multiphase flow generator is installed near base 9.

[0027] As shown in Figure 2, shampoo bowl 10 is composed of bottom 14 and peripheral wall 15, and is generally hemispherical. In shampoo bowl 10, bottom 14 is formed with drain outlet 11, and the inner surface of peripheral wall 15 is provided with hot and cold water stop valve 12, shower head 13 for discharging hot and cold water, etc. A portion of peripheral wall 15 facing seat 3 is recessed, and a head support device 16 is attached to it. Head support device 16 is freely attachable and detachable. The neck and head of the person to be treated are placed on head support device 16.

[0028] Next, the showerhead 13 will be described in detail with reference to the drawings. 3 to 9 show the appearance and cross section of the showerhead 13.

[0029] 3 to 9, shower head 13 has a hose connection portion 20 to which a shower hose (not shown) is connected, a head main body portion 21 connected to the downstream side of hose connection portion 20 for hot and cold water, and a water discharge portion 22 formed on the downstream side of head main body portion 21. Water discharge portion 22 has a primary water discharge portion 53, a processing chamber 41 formed downstream of primary water discharge portion 53, and a secondary water discharge portion 50 located downstream of processing chamber 41. Hot and cold water flowing through the shower hose flows through hose connection portion 20 and head main body portion 21 in order, passes through primary water discharge portion 53 and processing chamber 41, and is discharged from secondary water discharge portion 50.

[0030] The head main body 21 is generally cylindrical, and inside the head main body 21 are a flow path switching unit 28 that switches the flow path of hot and cold water discharged from the primary water discharge unit 53, and two inflow chambers into which the hot and cold water whose flow path has been switched by the flow path switching unit 28 flows. The flow path switching unit 28 switches the flow path of the hot and cold water by moving a valve. The flow path switching unit 28 has a switch 29 for switching the flow path, and the switch 29 protrudes from the flow path switching unit 28 to the outside of the head main body 21. One of the inflow chambers is a cylindrical central flow path 30 located at the center of the head main body 21, and the other is a circular peripheral flow path 31 located on the outer periphery of the central flow path 30. A foaming member 32 is attached to the central flow path 30. The hot and cold water that passes through the foaming member 32 contains a large amount of air bubbles.

[0031] The primary water spouting surface 23 formed at the tip of the primary water spouting section 53 is circular or approximately circular. The primary water spouting surface 23 has a circular central water spouting surface 25 at the center of the primary water spouting surface 23, and a primary outer peripheral water spouting surface 26 that is annular and forms the outer periphery of the central water spouting surface 25. A plurality of water spouting holes 24 are formed in both water spouting surfaces 25, 26. The water spouting holes (not shown) of the central water spouting surface 25 are larger than the water spouting holes 24 of the primary outer peripheral water spouting surface 26. The central water spouting surface 25 is located downstream of the central flow path 30 of the head main body 21, and is formed by the downstream end face of the foaming member 32. The primary outer peripheral water spouting surface 26 is located downstream of the outer peripheral flow path 31 of the head main body 21.

[0032] The secondary water discharge surface 54 formed at the tip of the secondary water discharge section 50 is circular or approximately circular. The secondary water discharge surface 54 has a central blocked surface 51 at the center of the circle and a secondary outer peripheral water discharge surface 52 which is annular and is the outer periphery of this central blocked surface 51. The central blocked surface 51 is flat and has no holes. The secondary outer peripheral water discharge surface 52 has multiple water discharge holes 24 formed therein. The central blocked surface 51 faces the central water discharge surface 25 of the primary water discharge section 53, and the secondary outer peripheral water discharge surface 52 faces the primary outer peripheral water discharge surface 26 of the primary water discharge section 53. The diameter of the central water discharge surface 25 is equal to or smaller than the inner diameter of the secondary outer peripheral water discharge surface 52.

[0033] A plurality of protrusions 34 are formed on the outer surface of the shower head 13, on the outer peripheral surface of the water spouting unit 22. The protrusions 34 are arranged at equal or approximately equal intervals along the periphery of the water spouting unit 22. The protrusions 34 gradually rise outward from the periphery 27 of the water spouting unit 22 in the direction opposite the water spouting direction. The apex 37, where the protrusions 36 rise, is a stripe that extends toward the periphery of the water spouting unit 22. The apex 37 is located 0.5 to 1.5 millimeters from the leading edge of the periphery 27 in the direction opposite the water spouting direction (see spacing 38 in Figure 6).

[0034] The beauty and hairdressing device 1 is configured as described above. Next, a hair washing method using the beauty and hairdressing device 1 will be described with reference to the drawings, along with the functions and effects of this embodiment. FIG. 10 shows how the person to be treated holds the shower head 13 in the hair washing method. After applying a treatment such as hair coloring, the practitioner uses the hair washing method to wash away any chemicals adhering to the person's hair. The hot and cold water used in the hair washing method may be either water discharged from the central water discharge surface 25 or water discharged from the primary outer peripheral water discharge surface 26 (hereinafter, hot and cold water discharged from the central water discharge surface 25 will be referred to as "foam water," hot and cold water discharged from the primary outer peripheral water discharge surface 26 will be referred to as "spray water," and either foam water or spray water will be referred to as "hot and cold water").

[0035] As shown in FIG. 10 , first, the practitioner grasps the exterior of shower head 13 so as to cover the outer periphery of water discharger 22 from head body 21. For example, by placing the first joints of fingers 17 or their vicinity against apexes 37 of protrusions 34, fingers 17 are protruded in the direction of water discharge from secondary water discharger 50. Therefore, the practitioner can use their fingertips while still gripping shower head 13, allowing them to perform treatment with fingers 17 gripping shower head 13. Furthermore, multiple fingers 17 can be caught on protrusions 34, allowing shower head 13 to be held at equal intervals, preventing hands from slipping. In particular, apexes 37 of protrusions 34 are horizontally elongated along the outer periphery of water discharger 22 and gently rise from periphery 27 (see FIG. 4 ), making it easy for the first joints of fingers 17 to catch on.

[0036] The stop valve 12 is turned as needed to discharge hot and cold water, and the multiphase flow generating device is operated before and after the hot and cold water is discharged. When the multiphase flow generating device is operated, the hot and cold water, which has become a multiphase flow due to the inclusion of air, is pressurized by the pump of the multiphase flow generating device and is forcefully discharged from the secondary outer peripheral water discharge surface 52 (hereinafter, the multiphase flow hot and cold water will be referred to as "wash water").

[0037] Next, the operation and effects of the beauty and hairdressing device 1 will be described.

[0038] When the cleansing water that has passed through the foaming member 32 flows into the treatment chamber 41 from the central discharge surface 25, the cleansing water hits the central blocking surface 51 and momentarily stagnates in the treatment chamber 41 while being agitated by water pressure, generating a large amount of uniform bubbles in the cleansing water. When this cleansing water is discharged from the secondary outer peripheral discharge surface 52 and hits the hair, the bubbles pop instantly, turning the cleansing water into a pseudo-carbonated spring that gives the user a simulated experience of the sensation of carbon dioxide gas popping. Therefore, the user can experience a simulated sensation of carbon dioxide gas popping without using carbon dioxide gas or the like. Furthermore, the fine bubbles collide with and pop adhesions on the hair, or lift the adhesions, thereby achieving a high cleansing effect.

[0039] For example, if an opening / closing section (not shown) is formed on the outer peripheral surface or central blocking surface 51 of the secondary water discharge section 50, and tablets such as carbonate tablets, which are the carbon dioxide generating agent that is the raw material for carbonated spring, can be placed in the treatment chamber 41 through this opening / closing section, then in addition to the pseudo-carbonated spring, a carbonated spring with a strong stimulating effect will be generated by the carbon dioxide generating agent, and the person being treated will be able to noticeably experience the sensation of carbon dioxide gas popping through a synergistic effect. Furthermore, regardless of whether hot water, foam water, or wash water is used (i.e., whether pseudo-carbonated spring is generated or not), carbonated spring will be generated by the carbonate tablets or the like. Therefore, the person being treated will be able to experience the sensation of carbon dioxide gas popping.

[0040] Next, a foam generation method using the beauty and hairdressing device 1 will be described with reference to Fig. 2. The foam generation method includes at least a plugging step, an application step, and a water discharge step. The water discharge step may include a stirring step, a proximity step, and a foaming step as necessary.

[0041] In FIG. 2, in the plugging step, a plug is attached to drain outlet 11 to close drain outlet 11. This makes shampoo bowl 10 ready to be filled with hot water and foam. In the application step, a detergent such as shampoo is applied to the inner surface of shampoo bowl 10. The amount of detergent applied is arbitrary, but if the detergent container is a pump bottle, for example, it is the amount that is dispensed by pushing the nozzle two or three times. The position where the detergent is applied is also arbitrary, but for example, it may be near drain outlet 11 on bottom 14. The order of the plugging step and the application step may be reversed.

[0042] After the closing procedure and the application procedure, in the water discharge procedure, the secondary water discharge surface 50 of the shower head 13 is brought close to the bottom 14 of the shampoo bowl 10, directly above the applied detergent, or in the vicinity of the detergent. The switch 29 of the shower head 13 is operated to select water spray or foaming water. The multiphase flow generator is operated and the stop valve 12 is operated (or the stop valve 12 is operated and the multiphase flow generator is operated), and wash water is discharged from the shower head 13. When the wash water hits the detergent or its vicinity inside the shampoo bowl 10, the detergent dissolves and mixes with the wash water, gradually foaming and generating fine bubbles. In the stirring procedure, the shower head 13 is rotated inside the shampoo bowl 10 while the wash water is being discharged. The wash water and detergent mix together, and further aeration is incorporated and stirred, gradually increasing the amount of foam. As the level of wash water collected in the shampoo bowl 10 rises, the secondary outer peripheral water spouting surface 52 is kept close to the water surface. The distance between the water surface and the secondary outer peripheral water spouting surface 52 is about several millimeters to several centimeters.

[0043] In this way, a large amount of foam is generated in the shampoo bowl 10 for washing and massaging the hair and scalp (hereinafter referred to as "cleansing"). The detergent foams further as it is stirred by the wash water, and further foams as the wash water continues to hit it close to the water surface. In particular, when foamy wash water is used, the foaming step generates even finer foam.

[0044] As described above, the foam generating method can generate high-quality foam for cleansing, regardless of the practitioner's skill level. The high-quality foam completely covers the surface of the wash water collected in the shampoo bowl 10, forming a thick layer that makes the water surface invisible. Furthermore, even if the practitioner scoops up the foam with their hand and tilts it, the foam does not spill from their hand and remains for some time.

[0045] Next, a hair washing device according to a second embodiment of the present invention will be described. The structure of the second embodiment is generally similar to that of the first embodiment, and therefore the description of the second embodiment will refer to the drawings and the symbols that appear in the drawings that are referenced in the first embodiment. Therefore, the following description will mainly focus on the configuration that differs from the first embodiment, and descriptions of the configuration that is the same as the first embodiment will be omitted where appropriate. The second embodiment differs from the first embodiment primarily in that it has a straightening member instead of a foaming member. Hereinafter, in the second embodiment, hot and cold water discharged from the primary water discharge surface 23 of the primary water discharger 53 will be referred to simply as "hot and cold water," and hot and cold water that has been converted into a multiphase flow will be referred to as "washing water."

[0046] In the second embodiment, as shown in Fig. 7, a rectifying member 32 is attached to the central flow passage 30 of the head main body 21. The rectifying member 32 has a structure for rectifying the flow of wash water to prevent the wash water from scattering before it hits the target, and this structure may be, for example, a lattice shape, a mesh shape, a honeycomb shape, or the like. The rectifying member 32 may have any shape as long as it can perform the rectifying function. Furthermore, the rectifying member 32 may function not only as a rectifying member but also as a foaming member.

[0047] The primary water spouting surface 23 formed at the tip of the primary water spouting section 53 has a circular central water spouting surface 25 at the center of this primary water spouting surface 23, and a primary outer peripheral water spouting surface 26 that is annular and forms the outer periphery of this central water spouting surface 25. The central water spouting surface 25 is formed by the downstream end surface of the straightening member 32. The total area of ​​the water spouting holes 24 formed on the secondary outer peripheral water spouting surface 52 of the secondary water spouting section 50 (i.e., the area of ​​each water spouting hole 24 × the number of water spouting holes 24) is smaller than the total area of ​​the water spouting holes (not shown) formed on the central water spouting surface 25 (i.e., the area of ​​each water spouting hole 24 × the number of water spouting holes). Therefore, the amount of water spouted from the central water spouting surface 25 is greater than the amount of water spouted from the secondary outer peripheral water spouting surface 52.

[0048] When the cleansing water that has passed through the straightening member 32 flows into the treatment chamber 41 from the central water discharge surface 25, the cleansing water hits the central blocking surface 51 and momentarily stays in the treatment chamber 41 while being agitated by water pressure, generating a large amount of uniform bubbles in the cleansing water. When this cleansing water is discharged from the secondary outer peripheral water discharge surface 52 and hits the hair, the bubbles pop at that moment, and the cleansing water becomes a pseudo-carbonated spring that gives the user a simulated experience of the sensation of carbon dioxide gas popping. Therefore, the user can experience a simulated sensation of carbon dioxide gas popping without using carbon dioxide gas or the like. Furthermore, the fine bubbles collide with and pop adhesions on the hair, or lift the adhesions, thereby achieving a high cleansing effect.

[0049] In particular, since the total area of ​​the water discharge holes 24 formed on the secondary outer peripheral water discharge surface 52 is smaller than the total area of ​​the water discharge holes formed on the central water discharge surface 25, the amount of water discharged from the central water discharge surface 25 is greater than the amount of water discharged from the secondary outer peripheral water discharge surface 52. Therefore, the wash water is appropriately retained and agitated in the treatment chamber 41, and air bubbles in the wash water are maintained.

[0050] Generally, the amount of water discharged from showers in beauty salons is 5.0 [L / min] to 10.0 [L / min], but in this embodiment, the sensation of carbon dioxide gas popping becomes noticeable when the amount of water discharged from secondary outer peripheral water discharge surface 52 is 4.6 [L / min] to 9.1 [L / min] and the air content in the water is 1.0 [L / min] to 4.5 [L / min], provided that the amount of air contained in the water discharged is less than the amount of water discharged from secondary outer peripheral water discharge surface 52. The relationship between the amount of water discharged and the air content is as shown in Table 1 below.

[0051] [Table 1]

[0052] The top row of Table 1 lists the values ​​of the discharge volume of hot and cold water discharged from the secondary peripheral discharge surface 52 when the multiphase flow generator is not operating, while the middle and bottom rows list the values ​​of the discharge volume of flush water discharged from the secondary peripheral discharge surface 52 when the multiphase flow generator is operating. The discharge volume changes, increasing or decreasing, depending on the operation of the stop valve 12. Meanwhile, the pressure of the pump of the multiphase flow generator is constant. Note that the specifications of the multiphase flow generator include two operating modes with different pressures (NORMAL MODE and SOFT MODE), and therefore Table 1 divides the values ​​into the middle and bottom rows according to each operating mode.

[0053] When the multiphase flow generator is operating and air is mixed into the hot water, the amount of flush water discharged decreases by the amount of the air bubbles, and the air bubbles momentarily accumulate in the treatment chamber 41. Therefore, for example, even if the water discharge rate is 5.0 [L / min] when the multiphase flow generator is not operating, the water discharge rate decreases to 4.5 [L / min] when the multiphase flow generator is operating. Because the pressure of the pump of the multiphase flow generator is constant, as the water discharge rate increases, the amount of air bubbles contained in the flush water decreases. Therefore, for example, if the water discharge rate increases from 5.3 [L / min] to 6.0 [L / min], the air content decreases from 4.5 [L / min] to 4.3 [L / min].

[0054] Even when the relationship "air content < flush water discharge rate" holds, if the flush water discharge rate is less than 4.6 [L / min], the water pressure will not be sufficient for treatment, and on the other hand, if the flush water discharge flow exceeds 9.1 [L / min], the amount of bubbles relative to the discharge rate will be too small, and the bubbles will disappear before treatment can be performed. Therefore, the flush water discharge rate is 4.6 [L / min] to 9.1 [L / min]. Also, even when the relationship "air content < flush water discharge rate" holds, if the air content is less than 1.0 [L / min], the amount of bubbles will be too small, and the sensation of carbon dioxide popping will not be achieved. On the other hand, even when the relationship "air content < flush water discharge rate" holds, if the air content exceeds 4.5 [L / min], the flush water discharge rate will be too close to the lower limit (4.6 [L / min]), and the water pressure will not be sufficient for treatment. Therefore, the air content is 1.0 [L / min] to 4.5 [L / min].

[0055] In this embodiment, the treatment can be performed with a water discharge rate (4.6 [L / min]) that is lower than the lower limit (5.0 [L / min]) of the general water discharge rate for showers in beauty salons.

[0056] In this embodiment, the secondary water discharger 50 is detachable from the primary water discharger 53. This makes it easy to clean or repair the primary water discharger 53, secondary water discharger 50, and treatment chamber 41, and to replace the secondary water discharger 50. In addition, when the rectifying member 32 functions as a foaming member, foamy water can be discharged from the rectifying member 32.

[0057] In other embodiments of the present invention, the showerhead does not have any protrusions on its outer surface. In other embodiments, the shape, number, arrangement, etc. of the protrusions are optional. In other embodiments, the relationship between the diameter of the central discharge surface and the inner diameter of the secondary outer discharge surface is arbitrary. In another embodiment, the water discharge surface of the primary water discharge section is not constituted by the lower end surface of the foam member, but is a water discharge surface on which a plurality of water discharge holes are formed. In other embodiments, the primary discharge surface is a single discharge surface, i.e., the primary discharge surface is comprised of only a central discharge surface, and not a central discharge surface and a primary peripheral discharge surface. In another embodiment, water discharge holes are formed on the entire secondary water discharge surface (i.e., water discharge holes are also formed on the central blocked surface.) Even in this case, the total area of ​​the water discharge holes formed on the secondary water discharge surface is smaller than the total area of ​​the water discharge holes formed on the central water discharge surface of the primary water discharge surface.

[0058] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design modifications can be made to the present invention without departing from the scope of the claims. [Explanation of symbols]

[0059] 1. Hairdressing and beauty equipment (hair washing equipment) 2 treatment tables 3 Seat section 4 Lifting section 5 Seat 6 Foot rest 7 Backrest 8 Armrest 9 Base 10 shampoo bowl 11 Drain 12 Stop valve 13. Shower head 14 Bottom 15 Peripheral wall section 16 Head support device 17 Finger 20 Hose connection 21 Head body 22 Water outlet 23 Primary water discharge surface 24 Water outlet 25 Central outlet surface (outlet surface of primary outlet section) 26 Primary outer water discharge surface 27 Periphery 28 Flow path water flow switching section 29 Switch 30 Central channel 31 Peripheral flow channel 32 Foam member, flow straightening part (flow straightening member) 34 Protrusion 36 Ridge 37 Apex 38 interval 41 Processing Room 50 Secondary water outlet 51 Central occlusion plane 52 Secondary outer peripheral water outlet surface (water outlet surface of secondary water outlet section) 53 Primary water discharge section 54 Secondary water discharge surface

Claims

1. a multiphase flow generator that generates wash water by converting hot and cold water for washing hair into a multiphase flow; a shower head that discharges the cleaning water, The water discharge portion of the shower head is a primary water discharger that discharges the flush water; A treatment chamber formed downstream of the primary water discharge section; a secondary water discharge section formed downstream of the treatment chamber, The cleansing water discharged from the secondary water discharge section becomes a pseudo-carbonated spring that simulates the sensation of carbon dioxide gas popping. A hair washing device characterized by:

2. The water discharge surface of the primary water discharge section is configured with the downstream end surface of the flow straightening section built into the shower head, 2. The hair washing device according to claim 1.

3. the total area of ​​the water discharge holes formed in the secondary water discharge section is smaller than the total area of ​​the water discharge holes formed in the downstream end surface of the flow straightening section, and the amount of water discharged from the primary water discharge section is greater than the amount of water discharged from the secondary water discharge section; 3. A hair washing device according to claim 2.

4. The secondary water discharge section has a closed central closed surface, The downstream end surface of the flow straightening portion and the central blocking surface face each other.

4. A hair washing device according to claim 3.

5. The primary water discharge section, A central discharge surface which is the downstream end surface of the flow straightening section; a primary outer peripheral water discharge surface formed on the outer periphery of the central water discharge surface, The secondary water discharger has a secondary outer peripheral water discharge surface formed on the outer periphery of the central blocking surface, The central water discharge surface is circular, and the diameter of the central water discharge surface is equal to or less than the inner diameter of the secondary outer peripheral water discharge surface.

5. A hair washing device according to claim 4.

6. The secondary water discharger is detachable. The hair washing device according to any one of claims 3 to 5.

7. The processing chamber contains a carbon dioxide generating agent.

7. A hair washing device according to claim 6.

8. The amount of air contained in the flush water is less than the amount of water discharged from the secondary water discharge section, and The air content in the cleaning water is 1.0 to 4.5 [L / min], The amount of water discharged from the secondary water discharger is 4.6 to 9.1 [L / min]. The hair washing device according to any one of claims 3 to 5.

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