Shampoo bowls and beauty equipment
Patent Information
- Application Number
- JP2024542076
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2044-02-02
AI Technical Summary
Existing shampoo bowls lack a design suitable for back shampooing, failing to consider the practitioner's ease of treatment due to inadequate size and shape.
A shampoo bowl with a treatment space surrounded by a peripheral wall featuring a neck placement wall, corner wall, top wall, and side wall, where the top wall has a larger curvature than the side wall, and the corner wall is higher than the neck placement wall, providing a wider treatment space and convenient access for practitioners.
Enhances the practitioner's ability to perform back shampooing by allowing easier access and reducing water scatter, making it more efficient and comfortable for both practitioner and patient.
Smart Images
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Abstract
Description
[Technical field]
[0001] The present disclosure relates to a shampoo bowl and a beauty device. [Background technology]
[0002] Conventionally, in hair salons and other beauty facilities, there is a hairdressing chair described in the following Patent Document 1 (hereinafter referred to as the "Publication 1 Invention") as an apparatus used for treatments such as shampooing and scalp massage. The Publication 1 Invention has a chair on which the person to be treated sits and a shampoo bowl installed behind the chair. When the backrest of the chair is reclined, the head of the person to be treated is placed in the shampoo bowl, and the therapist massages the head of the person to be treated from inside the shampoo bowl.
[0003] When giving a treatment, the practitioner may stand to the side of the shampoo bowl and treat the person's head from the side, but in recent years, there has been an increase in practitioners standing behind the shampoo bowl and treating the person's head from the top (hereinafter referred to as "back shampoo"). [Prior art documents] [Patent documents]
[0004] [Patent Document 1] JP 2008-104846 A Summary of the Invention [Problem to be solved by the invention]
[0005] By the way, there are various shapes of shampoo bowls. For example, in the invention of the publicly known document 1, it is generally a horizontally long oval shape, and in other cases, it may be a square shape. However, the shape of the shampoo bowl that is particularly suitable for back shampooing has not yet been established. In other words, the invention of the publicly known document 1 does not take into consideration the size, shape, etc. that are easy for the practitioner to use when shampooing the back.
[0006] The present disclosure has been proposed in consideration of the above-mentioned circumstances, and aims to provide a shampoo bowl and a hairdressing device designed with a size and shape suitable for back shampooing. [Means for solving the problem]
[0007] In order to achieve the above-mentioned object, the shampoo bowl of the present disclosure has a treatment space surrounded by a bottom and a peripheral wall portion rising from the periphery of the bottom, and the peripheral wall portion has a neck positioning wall portion on which the neck of the person to be treated is placed, corner wall portions connected to the left and right sides of the neck positioning wall portion, a top wall portion on the opposite side of the neck positioning wall portion with respect to the treatment space, and side wall portions connected to the corner wall portion and the top wall portion, and is characterized in that, compared to a virtual top wall portion in which the curvature of the top wall portion is smaller than the curvature of the side wall portion, the top wall portion curves in an arc and protrudes outward, and the curvature of the top wall portion is formed to be greater than the curvature of the side wall portion.
[0008] The shampoo bowl according to the present disclosure is characterized in that the corner wall portion and the side wall portion are curved in an arc shape toward the outside, and the curvature of the peripheral wall portion increases in the order of the corner wall portion, the top wall portion, and the side wall portion.
[0009] The shampoo bowl according to the present disclosure is characterized in that the height of the side wall portion coincides with the height of a head support device attached to the neck placement wall portion.
[0010] The shampoo bowl according to the present disclosure is characterized in that the distance from the upper end of the neck placement wall portion to the upper end of the corner wall portion is longer than the distance from the upper end of the neck placement wall portion to the bottom.
[0011] The shampoo bowl of the present disclosure is characterized in that the distance from the mounting portion on which the shower head is mounted to the bottom is longer than the distance from the mounting portion to the upper end of the top wall portion.
[0012] The hairdressing and beauty device according to the present disclosure is characterized by having a treatment table used by the person being treated, and the above-mentioned shampoo bowl arranged behind the backrest of the treatment table. Effect of the Invention
[0013] The shampoo bowl according to the present disclosure has a treatment space surrounded by a bottom and a peripheral wall rising from the periphery of the bottom, the peripheral wall having a neck placement wall where the neck of the person to be treated is placed, corner walls connected to the left and right of the neck placement wall, a top wall on the opposite side of the neck placement wall with respect to the treatment space, and a side wall connected to the corner wall and the top wall, and compared to a virtual top wall in which the curvature of the top wall is smaller than that of the side wall, the top wall is curved and protrudes outward in an arc shape, the curvature of the top wall is formed to be larger than that of the side wall, and a shower head is disposed inside the top wall. The treatment space becomes wider by the amount that the top wall protrudes. When a practitioner performs treatment from the rear side of the top wall, the treatment space spreads toward the practitioner, and is particularly suitable for back shampooing. [Brief description of the drawings]
[0014] [Figure 1] FIG. 1 is a perspective view of a beauty and hairdressing device having a shampoo bowl according to an embodiment of the present disclosure in a non-treatment state. [Diagram 2] FIG. 2 is a side view of a beauty and hairdressing device having a shampoo bowl according to an embodiment of the present disclosure in a non-treatment state. [Diagram 3] FIG. 3 is a perspective view of a beauty and hairdressing device having a shampoo bowl according to an embodiment of the present disclosure in a treatment state. [Figure 4] FIG. 4 is a side view of a beauty and hairdressing device having a shampoo bowl according to an embodiment of the present disclosure in a treatment state. [Diagram 5] FIG. 5 is a perspective view of a shampoo bowl according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a top view of a shampoo bowl according to an embodiment of the present disclosure. [Figure 7]FIG. 7 is a bottom view of a shampoo bowl according to an embodiment of the present disclosure. [Figure 8] FIG. 8 is a front view of a shampoo bowl according to an embodiment of the present disclosure. [Figure 9] FIG. 9 is a side view of a shampoo bowl according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a rear view of a shampoo bowl according to an embodiment of the present disclosure. [Figure 11] FIG. 11 is a cross-sectional side view of a shampoo bowl according to an embodiment of the present disclosure taken along line XI-XI of FIG. 8 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0015] In the shampoo bowl according to the present disclosure, the corner wall and the side wall are curved in an arc shape toward the outside, and the curvature of the peripheral wall is larger in the order of the corner wall, the top wall, and the side wall. With this configuration, the shape of the peripheral wall is generally triangular. The side wall is narrower in width than the corner wall, and is closer to the head of the person being treated. During back shampooing, the practitioner places his / her arm on the side wall, and since the portion where the arm is placed is closer to the head of the person being treated, the practitioner can place his / her arm on the side wall while holding the head of the person being treated with his / her hand. If the peripheral wall of the shampoo bowl is a horizontally long oval or square shape, the curvature of the peripheral wall is small near the top of the head, and therefore the peripheral wall is not close to the head. Therefore, when the practitioner holds the head of the person being treated with his / her hand during back shampooing, the peripheral wall hits the position close to the elbow, and this posture cannot be said to be suitable for the practitioner during back shampooing.
[0016] In the shampoo bowl according to the present disclosure, the height of the side wall portion is the same as the height of the head support device attached to the neck placement wall portion. When the therapist places his / her arm on the side wall portion and grasps the head of the person to be treated with his / her hand, the posture of the arm is generally straight, so that the therapist can reach the top or back of the head by rotating the wrist.
[0017] In the shampoo bowl according to the present disclosure, the distance from the top of the neck arrangement wall to the top of the corner wall is longer than the distance from the top of the neck arrangement wall to the bottom. In a back shampoo, the therapist performs the shampoo from the top of the head of the person being treated, so hot and cold water from the shower head splashes onto the neck arrangement wall and the corner wall. In the present disclosure, the corner wall is high, so the hot and cold water is prevented from jumping over the corner wall.
[0018] In the shampoo bowl according to the present disclosure, the distance from the installation part where the shower head is installed to the bottom is longer than the distance from the installation part to the upper end of the top wall. In back shampooing, the therapist performs the treatment from the top side of the head of the person being treated, so it is convenient if the treatment space on the top wall side, which is the side of the therapist's hands, is wide. On the other hand, if the top wall is high, it becomes difficult for the therapist to insert his or her hands into the treatment space. In the present disclosure, the top wall is low and the bottom is deep, making it suitable for back shampooing.
[0019] The beauty salon device according to the present disclosure includes a treatment table used by a person to be treated, and the above-mentioned shampoo bowl disposed behind the backrest of the treatment table, thereby achieving the same effects as the above-mentioned shampoo bowl.
[0020] A shampoo bowl according to an embodiment of the present disclosure will be described below with reference to the drawings. Figures 1 to 4 show a hairdressing and beauty device 1 equipped with a shampoo bowl 9 according to this embodiment. Figures 1 and 2 show the hairdressing and beauty device 1 in a non-treatment state before treatment is performed using the shampoo bowl 9, and Figures 3 and 4 show the hairdressing and beauty device 1 in a treatment state in which treatment using the shampoo bowl 9 is possible. In the following description, in the hairdressing and beauty device 1, the direction in which the treatment table 2 is located is referred to as the front side, the direction in which the shampoo bowl 9 is located is referred to as the back side, the sides are referred to as the right side and the left side, and the height direction is referred to as the up side and the down side (see Figure 1).
[0021] As shown in Figs. 1 to 4, the hairdressing and beauty device 1 has a treatment table 2 used by a person to be treated (not shown) and a shampoo bowl 9 arranged behind the treatment table 2 on which the head of the person to be treated is placed. The treatment table 2 has a seat section 3 on which the person to be treated lies and a lifting section 4 supporting 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 on which the legs of the person to be treated are placed, and a backrest section 7 connected to the rear of the seat section 5 on which the upper half of the person to be treated is placed. The seat section 3 may have armrest sections (not shown) arranged on the left and right sides of the seat section 5 on which the arms of the person to be treated are placed. The treatment table 2 has a seat section 3 that rises and falls as the lifting section 4 operates to expand and contract up and down, and the angle of the seat section 3 changes as the backrest section 7 reclines or rises. When the backrest section 7 reclines, the seat section 3 becomes horizontal or approximately horizontal. The posture of the treatment table 2 can be changed arbitrarily by being operated by a therapist (not shown), and can also be automatically changed to a predetermined posture.
[0022] The shampoo bowl 9 is for the person to be treated to place his / her head while lying on his / her back on the seat part 3 and receive the treatment. The therapist stands behind the shampoo bowl 9 (or sits on a stool) and performs treatment on the head and hair of the person to be treated. The treatment includes, for example, shampooing, scalp massage, coloring, perm, eye makeup, etc. The shampoo bowl 9 is placed on a base part 10. The shampoo bowl 9 is composed of a bottom part 14 and a peripheral wall part 15, and is roughly hemispherical. In the shampoo bowl, a drain port 11 is formed in the bottom part 14, and a stop valve 12 for hot water supply, a shower head 13 for discharging hot water, etc. are installed on the inner surface of the peripheral wall part 15. A part of the front side of the peripheral wall part 15 facing the seat part 3 is recessed, and a head support device 8 is attached to it. The head support device 8 is freely attached and detached. The neck and head of the person to be treated are placed on the head support device 8.
[0023] Here, the shampoo bowl 9 will be described in detail with reference to the drawings. Figures 5 to 11 show the appearance and cross section of the shampoo bowl 9.
[0024] 5 to 11, the shampoo bowl has a bottom 14 and a peripheral wall 15 rising from the periphery of the bottom 14. The inside of the shampoo bowl 9 surrounded by the bottom 14 and the peripheral wall 15 is a treatment space, in which the head of the person to be treated is placed. The shampoo bowl 9 is symmetrical with respect to the center line 35 in the front-to-rear direction (see FIG. 6).
[0025] The peripheral wall portion 15 has a neck arrangement wall portion 16 constituting the front side of the peripheral wall portion 15, a corner wall portion 17 constituting the front side of the left and right sides of the peripheral wall portion 15 and connected to the left and right sides of the neck arrangement wall portion 16, a top wall portion 18 constituting the rear side of the peripheral wall portion 15 and located on the opposite side of the neck arrangement wall portion 16 with respect to the treatment space, and a side wall portion 19 constituting the left and right sides of the peripheral wall portion 15 and connected to the corner wall portion 17 and the top wall portion 18. The peripheral wall portion 15 is divided into an upper peripheral wall portion 20 constituting the upper side and a lower peripheral wall portion 21 constituting the lower side, and the upper and lower peripheral walls 20, 21 are connected to each other in a stepped manner. The treatment space of the lower peripheral wall portion 21 is narrower than that of the upper peripheral wall portion 20, and the treatment space of the upper peripheral wall portion 20 is wider than that of the lower peripheral wall portion 21. The upper and lower peripheral wall portions 20, 21 are inclined outwardly as they extend upward.
[0026] The neck placement wall 16 is formed lower than other parts of the peripheral wall 15, and forms a concave neck placement space on the edge of the shampoo bowl 9 for the neck of the person to be treated to pass through. A front flat surface 22 is formed at the upper end of the neck placement wall 16 (FIG. 11). The front flat surface 22 is a flat surface that protrudes outward. The front end of the front flat surface 22 protrudes slightly upward. The inner side of the neck placement wall 16, bounded by the front flat surface 22, constitutes a part of the lower peripheral wall 21, and the outer side of the neck placement wall 16, bounded by the front flat surface 22, constitutes a part of the upper peripheral wall 20. The head support device 8 is attached to and detached from the front flat surface 22. Thus, the neck of the person to be treated is placed on the front flat surface 22 via the head support device 8.
[0027] The corner wall 17 is formed higher than the neck arrangement wall 16, and the upper end of the corner wall 17 is above the front flat surface 22 of the neck arrangement wall 16. The corner wall 17 extends upward and is gently inclined outward. A side wall step 23 is formed on the side wall 19. The side wall step 23 projects outward, and the stop valve 12 and the like are installed on the upper surface. The side wall 19 is formed such that the inner side of the side wall step 23 constitutes a part of the lower peripheral wall 21, and the outer side of the side wall step 23 constitutes a part of the upper peripheral wall 20. The top wall 18 is formed with a rear flat surface 24 as an installation portion for the shower head 13. The rear flat surface 24 is a flat surface that projects outward, and the shower head 13 is installed on the rear flat surface 24. The shower head 13 is installed on the center line 35 of the shampoo bowl 9. The rear flat surface 24 is connected to the side wall step 23. The inner side of the top wall 18, bounded by the rear flat surface 24, constitutes a part of the lower peripheral wall 21, and the outer side of the top wall 18, bounded by the rear flat surface 24, constitutes a part of the upper peripheral wall 20.
[0028] As shown in Fig. 6, in the upper peripheral wall portion 20, both side walls 19 are connected at the rear side via the top wall portion 18, and are connected at the front side to both ends of the neck arrangement wall portion 16 via both corner walls 17. The top wall portion 18 is on the center line 35 and faces the center of the neck arrangement wall portion 16. Thus, the shampoo bowl 9 has a roughly triangular shape with the single top wall portion 18 and the two corner walls 17 as vertices. The top wall portion 18, the corner walls 17, and the side walls 19 of the upper peripheral wall portion 20 are curved in an arc shape toward the outside, so that the triangular shape is rounded. The curvatures of the first curved portion 26, the second curved portion 27, and the third curved portion 28 of the upper peripheral wall portion 20 are larger in the order of the corner wall portion 17, the top wall portion 18, and the side wall portion 19 (the curvature of the first curved portion 26 > the curvature of the second curved portion 27 > the curvature of the third curved portion 28). Here, the top wall portion 18 protrudes outward from the imaginary top wall portion 25 in a case where the curvature of the second curved portion 27 of the top wall portion 18 is smaller than the curvature of the third curved portion 28 of the side wall portion 19. In other words, the top wall portion 18 of the triangular shape of the shampoo bowl 9 protrudes outward from the area corresponding to the top wall in a case where the shampoo bowl 9 is a horizontally elongated ellipse.
[0029] When viewed from above, the corner wall portion 17 of the upper peripheral wall portion 20 protrudes outward beyond the neck arrangement wall portion 16, but the corner wall portion 17 of the upper peripheral wall portion 20 has a first curved portion 26 at its upper end with a different curvature from that of a fourth curved portion 29 at its lower end. More specifically, as shown in Fig. 7, the curvature of the fourth curved portion 29 at the lower end of the corner wall portion 17 is smaller than the curvature of the first curved portion 26 at the upper end. Therefore, when viewed from below, the periphery of the lower end of the upper peripheral wall portion 20 has the neck arrangement wall portion 16 protruding outward beyond the corner wall portion 17. That is, the upper peripheral wall portion 20 is inclined outwardly toward the upper side, and the corner wall portion 17 is also inclined outwardly toward the upper side, so that the upper end portion of the corner wall portion 17 protrudes outward from the neck arrangement wall portion 16. Therefore, the curvature of the first curved portion 26 at the upper end portion of the corner wall portion 17 is different from the curvature of the fourth curved portion 29 at the lower end portion of the corner wall portion 17. Note that in Figures 6 and 7, the first curved portion 26, the second curved portion 27, the third curved portion 28, and the fourth curved portion 29 indicate only a specific point, but the curvature of the first curved portion 26, the second curved portion 27, the third curved portion 28, and the fourth curved portion 29 do not mean the curvature of the specific point shown in the figures. The curvatures of the respective portions 26, 27, 28, and 29 are the curvatures in an appropriate range of the corner wall portion 17, the top wall portion 18, and the side wall portion 19.
[0030] 11 , the distance 31 from the front flat surface 22 to the upper end of the corner wall 17 is longer than the distance 30 from the upper end (front flat surface 22) of the neck arrangement wall 16 to the bottom 14. Also, the distance 33 from the rear flat surface 24 to the bottom 14 is longer than the distance 32 from the rear flat surface 24 on which the showerhead 13 is installed to the upper end of the top wall 18.
[0031] As shown in Figures 10 and 11, the height of the side wall portion 19 near the top wall portion 18 and the height of the ball portion 8a of the head support device 8 attached to the neck placement wall portion 16, on which the nape of the neck and the vicinity of the back of the head of the patient are placed, are roughly the same (see line 34 in the figure).
[0032] The present embodiment is configured as described above. Next, the effects of the present embodiment will be described.
[0033] As described above, in this embodiment, the top wall 18 of the upper peripheral wall 20 protrudes outward beyond the imaginary top wall 25, and the curvature of the second curved portion 27 of the top wall 18 is greater than the curvature of the third curved portion 28 of the side wall 19 (see FIG. 6). Therefore, the treatment space is wider by the amount that the top wall 18 protrudes. For a practitioner behind the top wall 18, the treatment space expands toward the practitioner, making this suitable for back shampooing.
[0034] In this embodiment, the upper peripheral wall portion 20 has a single top wall portion 18 and two corner wall portions 17 as vertices, and the curvatures of the first curved portion 26, the second curved portion 27, and the third curved portion 28 of the upper peripheral wall portion 20 are larger in the order of the corner wall portion 17, the top wall portion 18, and the side wall portion 19 (curvature of the first curved portion 26>curvature of the second curved portion 27>curvature of the third curved portion 28), and the top wall portion 18, the corner wall portion 17, and the side wall portion 19 are curved in an arc shape toward the outside, forming a rounded triangular shape (see FIG. 6). The portion near the top wall portion 18 is narrower in width than the corner wall portion 17, and is therefore closer to the head of the person to be treated. During back shampooing, the practitioner places his / her arm on the side wall portion 19, but since the portion where the arm is placed is close to the head of the person to be treated, the practitioner can place his / her arm on the side wall portion 19 while holding the head of the person to be treated with his / her hand.
[0035] In this embodiment, the height of the side wall 19 near the top wall 18 and the height of the ball portion 8a of the head support device 8 attached to the neck placement wall 16 are approximately the same (see Figs. 10 and 11). When the therapist places his / her arm on the side wall 19 and grasps the head of the patient with his / her hand, the arm is in a generally straight position, so that the therapist can reach the top or back of the head by rotating the wrist.
[0036] In this embodiment, the distance 31 from the front flat surface 22 to the upper end of the corner wall 17 is longer than the distance 30 from the upper end (front flat surface 22) of the neck arrangement wall 16 to the bottom 14 (see Figures 10 and 11). In a back shampoo, the therapist performs the shampooing from the top of the head of the person being treated, so hot and cold water from the shower head 13 splashes onto the neck arrangement wall 16 and corner wall 17, but because the corner wall 17 is high, the hot and cold water is prevented from jumping over the corner wall 17.
[0037] In this embodiment, the distance 33 from the rear flat surface 24 to the bottom 14 is longer than the distance 32 from the rear flat surface 24 on which the shower head 13 is installed to the upper end of the top wall 18 (see Figures 10 and 11). In back shampooing, the therapist performs the treatment from the top side of the head of the person being treated, so it is convenient if the treatment space on the top wall 18 side, which is the side of the therapist's hands, is wide. On the other hand, if the top wall 18 is high, it becomes difficult for the therapist to insert his or her hands into the treatment space. In this embodiment, the top wall 18 is low and the bottom 14 is deep, making it suitable for back shampooing.
[0038] In other embodiments of the present disclosure, the curvature of the side wall portion and the curvature of the corner wall portion are arbitrary, so long as the top wall portion of the upper peripheral wall portion protrudes outward further than the imaginary top wall portion and the curvature of the top wall portion is greater than the curvature of the side wall portion. Another alternative embodiment does not have a head support device, in which case the non-practitioner's neck rests directly on the front flat surface of the neck placement wall. In another embodiment, the height of the side wall portion near the top does not match the height of the ball portion of the head support device attached to the neck placement wall portion, where the nape of the neck or the vicinity of the back of the head of the patient is placed. In another embodiment, the height of the side wall portion near the top and the height of the ball portion of the head support device attached to the neck placement wall portion, on which the nape of the neck and the vicinity of the back of the head of the patient are placed, are completely consistent. In another embodiment, the distance from the top end (front flat surface) of the neck arrangement wall to the bottom is shorter than the distance from the front flat surface to the top end of the corner wall. In another embodiment, the distance from the top end (front flat surface) of the neck placement wall to the bottom is approximately the same as the distance from the front flat surface to the top end of the corner wall. In another embodiment, the distance from the rear flat surface to the bottom is shorter than the distance from the rear flat surface to the upper end of the top wall. In another embodiment, the distance from the rear flat surface to the upper end of the top wall is approximately the same as the distance from the rear flat surface to the bottom.
[0039] Although the embodiments of the present disclosure have been described in detail above, the present disclosure is not limited to the above-described embodiments. The present disclosure can be modified in various ways without departing from the scope of the claims. [Explanation of symbols]
[0040] 1 Hairdressing equipment 2 Treatment tables 3 Seat section 4 Lifting section 5 Seat 6 Foot rest 7 Backrest 8 Head support device 8a Ball section 9. Shampoo Bowl 10 Pedestal 11 Drain 12 Stopcock 13. Shower Head 14 Bottom 15 Peripheral wall section 16 Neck placement wall 17 Corner wall 18 Top wall 19 Side wall 20 Upper peripheral wall 21 Lower peripheral wall 22 Front flat surface 23 Side wall step 24 Rear flat surface (installation part) 25 Virtual top wall 26 First curved part 27 Second curved part 28 Third curved part 29 Fourth bend 30~33 Distance 34 lines 35 Centerline
Claims
1. A shampoo bowl having a treatment space surrounded by a bottom and a peripheral wall portion rising from the periphery of the bottom, The peripheral wall portion is A neck placement wall portion on which the neck of the patient is placed; Corner wall portions connected to the left and right sides of the neck placement wall portion; a top wall portion located on the opposite side of the treatment space from the neck placement wall portion; a side wall portion connected to the corner wall portion and the top wall portion, In comparison with a virtual top wall portion in which the curvature of the top wall portion is smaller than the curvature of the side wall portion, the top wall portion is curved in an arc shape and protrudes outward, and the curvature of the top wall portion is formed to be larger than the curvature of the side wall portion, thereby forming a rounded triangular shape. A shampoo bowl characterized by:
2. The width of the side wall portions in the vicinity of the top wall portion is narrower than the width of the corner wall portions.
2. The shampoo bowl according to claim 1.
3. The corner wall portion and the side wall portion are curved outward in an arc shape, the curvature of the peripheral wall portion is greatest in the corner wall portion, the curvature of the top wall portion is greatest in the side wall portion, and 3. A shampoo bowl according to claim 1 or claim 2.
4. The height of the side wall portion and the height of the head support device attached to the neck placement wall portion are the same.
3. A shampoo bowl according to claim 1 or claim 2.
5. The distance from the upper end of the neck placement wall portion to the upper end of the corner wall portion is longer than the distance from the upper end of the neck placement wall portion to the bottom.
3. A shampoo bowl according to claim 1 or claim 2.
6. The distance from the installation portion where the shower head is installed to the bottom is longer than the distance from the installation portion to the upper end of the top wall portion.
3. A shampoo bowl according to claim 1 or claim 2.
7. A treatment table used by the person receiving treatment; The shampoo bowl according to claim 1 or 2 is arranged behind the backrest of the treatment table. A hairdressing and beauty device characterized by the above.