Shampoo bowl and hairdressing device

Abstract

Provided is a shampoo bowl and a hairdressing apparatus designed to have a size and a shape suitable for back shampooing. A shampoo bowl 9 has a treatment space surrounded by a bottom portion 14 and a peripheral wall portion 15 rising from the peripheral edge of the bottom portion 14. The peripheral wall portion 15 includes: a neck placement wall portion 16; corner wall portions 17 connected to the right and left sides of the neck placement wall portion 16; a top wall portion 18 located on the opposite side from the neck placement wall portion 16; and side wall portions 19 connected to the corner wall portions 17 and the top wall portion 18. The top wall portion 18 projects farther outward than a virtual top wall portion 25 in the case where the curvature of a second curved portion 27 is smaller than the curvature of third curved portions 28.

Description

Technical Field

[0001] The present disclosure relates to a shampoo bowl and a hairdressing apparatus.Background Art

[0002] Conventionally, hairdressing facilities, such as hair salons, have a hairdressing chair as described in, for example, PTL 1 below (hereinbelow, referred to as a "publication-known invention 1"), which is an apparatus used for treatments such as shampooing and scalp massage. The publication-known invention 1 includes a chair on which a person receiving treatment sits and a shampoo bowl installed behind the chair. When a backrest portion of the chair is tilted, the head of the person receiving treatment is disposed in the shampoo bowl, and a person providing treatment performs treatment on the head of the person receiving treatment inside the shampoo bowl.

[0003] In recent years, in performing a treatment, in addition to the cases where a person providing treatment stands beside the shampoo bowl and handles the head of a person receiving treatment from the side, the cases where the person providing treatment stands behind the shampoo bowl and handles the head of a person receiving treatment from the crown of the head (hereinbelow, referred to as "back shampooing") have been increasing.Citation ListPatent Literature

[0004] PTL 1: Japanese Unexamined Patent Application Publication No. 2008-104846Summary of InventionTechnical Problem

[0005] Shampoo bowls are available in various shapes, and, for example, a shampoo bowl in the publication-known invention 1 has a substantially horizontally elongated oval shape, and a shampoo bowl in another case has a square shape. However, the shape of shampoo bowls particularly suitable for back shampooing has not yet been established. Specifically, in the publication-known invention 1, the size, shape, and the like that allow a person providing treatment to easily perform back shampooing are not taken into consideration.

[0006] The present disclosure has been proposed in view of these circumstances, and an object thereof is to provide a shampoo bowl and a hairdressing apparatus designed to have a size and a shape suitable for back shampooing.Solution to Problem

[0007] In order to achieve the above object, a shampoo bowl according to the present disclosure has a treatment space surrounded by a bottom portion and a peripheral wall portion standing from a peripheral edge of the bottom portion. The peripheral wall portion includes: a neck placement wall portion on which the neck of a person receiving treatment is disposed; corner wall portions connected to left and right sides of the neck placement wall portion; a top wall portion located on an opposite side of the treatment space from the neck placement wall portion; and side wall portions connected to the corner wall portions and the top wall portion. The top wall portion is curved and projects farther outward in an arc than a virtual top wall portion in a case where a curvature of the top wall portion is smaller than a curvature of the side wall portions. The curvature of the top wall portion is greater than the curvature of the side wall portions.

[0008] In the shampoo bowl according to the present disclosure, the corner wall portions and the side wall portions are curved outward in an arc, and a curvature of the peripheral wall portion is greatest at the corner wall portions, next at the top wall portion, and smallest at the side wall portions.

[0009] In the shampoo bowl according to the present disclosure, a height of the side wall portions is equal to a height of a head support device attached to the neck placement wall portion.

[0010] In the shampoo bowl according to the present disclosure, a distance from an upper end of the neck placement wall portion to an upper end of the corner wall portions is greater than a distance from the upper end of the neck placement wall portion to the bottom portion.

[0011] In the shampoo bowl according to the present disclosure, a distance from an installation portion where a shower head is installed to the bottom portion is greater than a distance from the installation portion to an upper end of the top wall portion.

[0012] A hairdressing apparatus according to the present disclosure includes: a treatment station used by a person receiving treatment; and the shampoo bowl disposed behind a backrest portion of the treatment station.Advantageous Effects of Invention

[0013] The shampoo bowl according to the present disclosure has a treatment space surrounded by a bottom portion and a peripheral wall portion standing from a peripheral edge of the bottom portion. The peripheral wall portion includes: a neck placement wall portion on which the neck of a person receiving treatment is disposed; corner wall portions connected to left and right sides of the neck placement wall portion; a top wall portion located on an opposite side of the treatment space from the neck placement wall portion; and side wall portions connected to the corner wall portions and the top wall portion. The top wall portion is curved and projects farther outward in an arc than a virtual top wall portion in a case where a curvature of the top wall portion is smaller than the curvature of the side wall portion. The curvature of the top wall portion is greater than the curvature of the side wall portions. A shower head is disposed inside the top wall portion. The treatment space is increased by the amount by which the top wall portion projects. When a person providing treatment performs treatment from behind the top wall portion, the treatment space extends toward the person providing treatment who is behind the top wall portion, which makes the shampoo bowl particularly suitable for back shampooing.Brief Description of Drawings

[0014] Fig. 1 is a perspective view of a hairdressing apparatus having a shampoo bowl according to an embodiment of the present disclosure, in a non-treatment state. Fig. 2 is a side view of the hairdressing apparatus having the shampoo bowl according to the embodiment of the present disclosure, in a non-treatment state. Fig. 3 is a perspective view of the hairdressing apparatus having the shampoo bowl according to the embodiment of the present disclosure, in a treatment state. Fig. 4 is a side view of the hairdressing apparatus having the shampoo bowl according to the embodiment of the present disclosure, in a treatment state. Fig. 5 is a perspective view of the shampoo bowl according to the embodiment of the present disclosure. Fig. 6 is a top view of the shampoo bowl according to the embodiment of the present disclosure. Fig. 7 is a bottom view of the shampoo bowl according to the embodiment of the present disclosure. Fig. 8 is a front view of the shampoo bowl according to the embodiment of the present disclosure. Fig. 9 is a side view of the shampoo bowl according to the embodiment of the present disclosure. Fig. 10 is a rear view of the shampoo bowl according to the embodiment of the present disclosure. Fig. 11 is a cross-sectional view, taken along line XI-XI in Fig. 8, of the shampoo bowl according to the embodiment of the present disclosure. Description of Embodiments

[0015] A shampoo bowl according to the present disclosure has corner wall portions and side wall portions that are curved outward in an arc. The curvature of the peripheral wall portion is greatest at the corner wall portions, next at a top wall portion, and smallest at the side wall portions. With this configuration, the shape of the peripheral wall portion is substantially triangular. The distance between portions of the side wall portions near the top wall portion is less than the distance between the corner wall portions. Thus, the portions of the side wall portions near the top wall portion are close to the head of the person receiving treatment. In back shampooing, a person providing treatment places his or her arms on the side wall portions. At this time, because the portions on which the arms are disposed are close to the head of the person receiving treatment, the person providing treatment can place his or her arms on the side wall portions while holding the head of the person receiving treatment with his or her hands. If the peripheral wall portion of the shampoo bowl has a horizontally elongated oval shape or a rectangular shape, the curvature of the peripheral wall portion is small in the vicinity of the crown of the head, and thus the peripheral wall portion is not close to the head. Hence, when the person providing treatment holds the head of the person receiving treatment with his or her hands during back shampooing, portions near the elbows come into contact with the peripheral wall portion. This position is not suitable for the person providing treatment to perform back shampooing.

[0016] In the shampoo bowl according to the present disclosure, the height of the side wall portions is equal to the height of a head support device attached to a neck placement wall portion. Because the arm positions of the person providing treatment when he or she places his or her arms on the side wall portions and holds the head of the person receiving treatment with his or her hands are substantially straight, the person providing treatment can reach the crown of the head or the back of the head by rotating the wrists.

[0017] In the shampoo bowl according to the present disclosure, the distance from the upper end of the neck placement wall portion to the upper end of the corner wall portions is greater than the distance from the upper end of the neck placement wall portion to the bottom portion. In back shampooing, the person providing treatment performs treatment from the crown of the head of the person receiving treatment. Hence, hot or cold water from a shower head splashes on the neck placement wall portion and the corner wall portions. In the present disclosure, the corner wall portions are high. Thus, hot or cold water is prevented from splashing over the corner wall portions.

[0018] In the shampoo bowl according to the present disclosure, the distance from the installation portion where the shower head is installed to the bottom portion is greater than the distance from the installation portion to the upper end of the top wall portion. In back shampooing, because a person providing treatment performs treatment from the crown of the head of a person receiving treatment, it is convenient if there is a large treatment space on the top wall portion side, which is near the hands of the person providing treatment. If the top wall portion is high, it is difficult for the person providing treatment to put his or her hands into the treatment space. In the present disclosure, the top wall portion is low and the bottom portion is deep, which makes the shampoo bowl suitable for back shampooing.

[0019] The hairdressing apparatus according to the present disclosure includes a treatment station used by a person receiving treatment, and the shampoo bowl disposed behind a backrest portion of the treatment station. Hence, the same effect as the above-described shampoo bowl is achieved.

[0020] Hereinbelow, a shampoo bowl according to an embodiment of the present disclosure will be described with reference to the drawings. Figs. 1 to 4 illustrate a hairdressing apparatus 1 provided with a shampoo bowl 9 according to this embodiment. Figs. 1 and 2 illustrate the hairdressing apparatus 1 in a non-treatment state, i.e., before a treatment using the shampoo bowl 9, and Figs. 3 and 4 illustrate the hairdressing apparatus 1 in a treatment state in which a treatment using the shampoo bowl 9 can be performed. In the following description, in the hairdressing apparatus 1, the direction in which a treatment station 2 is located corresponds to the front side (Front), the direction in which the shampoo bowl 9 is located corresponds to the rear side (Back), the lateral direction corresponds to the right and left sides (Right Side, Left Side), and the height direction corresponds to the upper and lower sides (Up, Down) (see Fig. 1).

[0021] As illustrated in Figs. 1 to 4, the hairdressing apparatus 1 includes the treatment station 2 used by a person receiving treatment (not illustrated), and the shampoo bowl 9 disposed behind the treatment station 2 and on which the head of the person receiving treatment is disposed. The treatment station 2 has a seat unit 3 on which the person receiving treatment lies and a lifting unit 4 supporting the seat unit 3 from below. The seat unit 3 includes a seat portion 5 on which the person receiving treatment sits, a leg rest portion 6 that is connected to the front of the seat portion 5 and on which the legs of the person receiving treatment are disposed, and a backrest portion 7 that is connected to the rear of the seat portion 5 and on which the upper body of the person receiving treatment is disposed. The seat unit 3 may have armrest portions (not illustrated) that are disposed on the left and right sides of the seat portion 5 and on which the arms of the person receiving treatment are disposed. In the treatment station 2, the seat unit 3 is moved up and down when the lifting unit 4 is actuated and is expanded and contracted vertically, and the angle of the seat unit 3 is changed when the backrest portion 7 is tilted backward and forward. Tilting the backrest portion 7 backward makes the seat unit 3 horizontal or substantially horizontal. The position of the treatment station 2 is changed as desired when the treatment station 2 is operated by the person providing treatment (not illustrated), and is automatically changed to a predetermined position.

[0022] The shampoo bowl 9 is for placing the head of the person receiving treatment, who is lying on his or her back on the seat unit 3, to receive treatment. The person providing treatment stands (or sits on a stool) behind the shampoo bowl 9 and performs treatment on the head and hair of the person receiving treatment. The treatment includes, for example, shampooing, scalp massage, coloring, permanent wave, and eye makeup. The shampoo bowl 9 is installed on a pedestal 10. The shampoo bowl 9 includes a bottom portion 14 and a peripheral wall portion 15, and is approximately hemispherical. In the shampoo bowl, a drain hole 11 is formed in the bottom portion 14, and a water stop valve 12 for supplied hot or cold water, a shower head 13 from which the supplied hot or cold water is discharged, and the like are installed on the inner surface of the peripheral wall portion 15. A front-side portion of the peripheral wall portion 15 facing the seat unit 3 is recessed, and a head support device 8 is attached thereto. The head support device 8 is removably attached. The neck and head of the person receiving treatment are disposed on the head support device 8.

[0023] The shampoo bowl 9 will now be described in detail with reference to the drawings. In Figs. 5 to 11, the appearance and the cross-section of the shampoo bowl 9 are illustrated.

[0024] As illustrated in Figs. 5 to 11, the shampoo bowl has the bottom portion 14 and the peripheral wall portion 15 standing from the peripheral edge of the bottom portion 14. The inside of the shampoo bowl 9 surrounded by the bottom portion 14 and the peripheral wall portion 15 is a treatment space, and the head of the person receiving treatment is disposed in the treatment space. The shampoo bowl 9 is bilaterally symmetrical with respect to a center line 35 extending in the front-rear direction (see Fig. 6).

[0025] The peripheral wall portion 15 includes: a neck placement wall portion 16 constituting the front side of the peripheral wall portion 15; corner wall portions 17 constituting the front side portions of the left and right sides of the peripheral wall portion 15 and connected to the left and right sides of the neck placement wall portion 16; the top wall portion 18 constituting the rear side of the peripheral wall portion 15 and located on the opposite side of the treatment space from the neck placement wall portion 16; and side wall portions 19 constituting the left and right sides of the peripheral wall portion 15 and connected to the corner wall portions 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 wall portions 20 and 21 are connected to each other in a stepped manner. The treatment space surrounded by the lower peripheral wall portion 21 is smaller than the treatment space surrounded by the upper peripheral wall portion 20, and the treatment space surrounded by the upper peripheral wall portion 20 is larger than the treatment space surrounded by the lower peripheral wall portion 21. The upper and lower peripheral wall portions 20 and 21 are inclined outward toward the upper side.

[0026] The neck placement wall portion 16 is formed at a lower level than the other portions of the peripheral wall portion 15, and forms a recessed neck placement space in which the neck of the person receiving treatment is disposed at the edge of the shampoo bowl 9. A front flat surface 22 is formed at the upper end of the neck placement wall portion 16 (Fig. 11). The front flat surface 22 is a flat surface projecting outward. The front end of the front flat surface 22 slightly projects upward. In the neck placement wall portion 16, the portion inside the front flat surface 22 constitutes a portion of the lower peripheral wall portion 21, and the portion outside the front flat surface 22 constitutes a portion of the upper peripheral wall portion 20. The head support device 8 is attached to and detached from the front flat surface 22. Hence, the neck of the person receiving treatment is disposed on the front flat surface 22 via the head support device 8.

[0027] The corner wall portions 17 are formed so as to be higher than the neck placement wall portion 16, and the upper ends of the corner wall portions 17 are located above the front flat surface 22 of the neck placement wall portion 16. The corner wall portions 17 extend upward and are gently inclined outward. Side wall step portions 23 are formed in the side wall portions 19. The side wall step portions 23 project outward, and the water stop valve 12 and the like are installed on the upper surfaces thereof. In each of the side wall portions 19, the portion inside the side wall step portion 23 constitutes a portion of the lower peripheral wall portion 21, and the portion outside the side wall step portion 23 constitutes a portion of the upper peripheral wall portion 20. The top wall portion 18 is provided with a rear flat surface 24 that serves as an installation portion for the shower head 13. The rear flat surface 24 is a flat surface projecting outward, and the shower head 13 is installed thereon. The shower head 13 is on a center line 35 of the shampoo bowl 9. The rear flat surface 24 and the side wall step portions 23 are connected to each other. In the top wall portion 18, the portion inside the rear flat surface 24 constitutes a portion of the lower peripheral wall portion 21, and the portion outside the rear flat surface 24 constitutes a portion of the upper peripheral wall portion 20.

[0028] As illustrated in Fig. 6, in the upper peripheral wall portion 20, the side wall portions 19 are connected to each other with the top wall portion 18 therebetween on the rear side, and are connected to both ends of the neck placement wall portion 16 with the corner wall portions 17 therebetween on the front side. The top wall portion 18 is present on the center line 35 and faces the center of the neck placement wall portion 16. Thus, the shampoo bowl 9 has a generally triangular shape with a single top wall portion 18 and two corner wall portions 17 as vertices. Because the top wall portion 18, the corner wall portions 17, and the side wall portions 19 of the upper peripheral wall portion 20 are curved outward in an arc, the triangular shape is rounded. The curvature of first curved portions 26, the curvature of a second curved portion 27, and the curvature of third curved portions 28 of the upper peripheral wall portion 20 are greatest at the corner wall portions 17, next at the top wall portion 18, and smallest at the side wall portions 19 (the curvature of the first curved portions 26 > the curvature of the second curved portion 27 > the curvature of the third curved portions 28). Here, the top wall portion 18 projects farther outward than a virtual top wall portion 25 in the case where the curvature of the second curved portion 27 at the top wall portion 18 is smaller than the curvature of the third curved portions 28 at the side wall portions 19. In other words, the top wall portion 18 of the triangular shampoo bowl 9 projects farther outward than a portion corresponding to the top wall portion in the case where the shampoo bowl 9 has a horizontally elongated oval shape.

[0029] When viewed from above, the corner wall portions 17 of the upper peripheral wall portion 20 project farther outward than the neck placement wall portion 16. In the corner wall portions 17 of the upper peripheral wall portion 20, the curvature of the first curved portions 26 at the upper end and the curvature of fourth curved portions 29 at the lower end differ from each other. More specifically, as illustrated in Fig. 7, the curvature of the fourth curved portions 29 at the lower ends of the corner wall portions 17 is smaller than the curvature of the first curved portions 26 at the upper end. Hence, when viewed from below, in the peripheral edge of the lower end of the upper peripheral wall portion 20, the neck placement wall portion 16 projects farther outward than the corner wall portions 17. Specifically, the upper peripheral wall portion 20 is inclined outward toward the upper side, and the corner wall portions 17 are also inclined outward toward the upper side and project farther outward at the upper ends thereof than the neck placement wall portion 16. Thus, the curvature of the first curved portions 26 at the upper ends of the corner wall portions 17 and the curvature of the fourth curved portions 29 at the lower ends of the corner wall portions 17 differ from each other. Although specific points of the first curved portions 26, the second curved portion 27, the third curved portions 28, and the fourth curved portions 29 are indicated in Figs. 6 and 7, the curvature of the first curved portions 26, the curvature of the second curved portion 27, the curvature of the third curved portions 28, and the curvature of the fourth curved portions 29 are not the curvatures at the illustrated specific points. The curvatures of the portions 26, 27, 28, and 29 are the curvatures of certain areas of the corner wall portions 17, the top wall portion 18, and the side wall portions 19.

[0030] As illustrated in Fig. 11, a distance 31 from the front flat surface 22 to the upper end of the corner wall portions 17 is greater than a distance 30 from the upper end (front flat surface 22) of the neck placement wall portion 16 to the bottom portion 14. Furthermore, a distance 33 from the rear flat surface 24 to the bottom portion 14 is greater than a distance 32 from the rear flat surface 24 on which the shower head 13 is installed to the upper end of the top wall portion 18.

[0031] As illustrated in Figs. 10 and 11, the height of a portion of the side wall portion 19 near the top wall portion 18 is substantially equal to the height of a ball portion 8a, on which the nape of the neck and the vicinity of the back of the head of the person receiving treatment are disposed (see line 34 in Fig. 10), in the head support device 8 attached to the neck placement wall portion 16.

[0032] This embodiment is configured as described above. Next, the advantages of this embodiment will be described.

[0033] As described above, in this embodiment, the top wall portion 18 of the upper peripheral wall portion 20 projects farther outward than the virtual top wall portion 25, and the curvature of the second curved portion 27 at the top wall portion 18 is greater than the curvature of the third curved portions 28 at the side wall portions 19 (see Fig. 6). Hence, the treatment space is increased by the amount by which the top wall portion 18 projects. The treatment space extends toward the person providing treatment who is behind the top wall portion 18, which makes the shampoo bowl 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, the curvature of the first curved portions 26, the curvature of the second curved portion 27, and the curvature of the third curved portions 28 of the upper peripheral wall portion 20 are greatest at the corner wall portions 17, next at the top wall portion 18, and smallest at the side wall portions 19 (the curvature of the first curved portions 26 > the curvature of the second curved portion 27 > the curvature of the third curved portions 28), and the top wall portion 18, the corner wall portions 17, and the side wall portions 19 are curved outward in an arc so as to form a rounded triangular shape (see Fig. 6). The distance between portions near the top wall portion 18 is less than the distance between the corner wall portions 17. Thus, the portions near the top wall portion 18 are close to the head of the person receiving treatment. In back shampooing, a person providing treatment places his or her arms on the side wall portions 19. At this time, because the portions on which the arms are disposed are close to the head of the person receiving treatment, the person providing treatment can place his or her arms on the side wall portions 19 while holding the head of the person receiving treatment with his or her hands.

[0035] In this embodiment, the height of a portion of the side wall portion 19 near the top wall portion 18 is substantially equal to the height of the ball portion 8a of the head support device 8 attached to the neck placement wall portion 16 (see Figs. 10 and 11). Because the arm positions of the person providing treatment when he or she places his or her arms on the side wall portions 19 and holds the head of the person receiving treatment with his or her hands are substantially straight, the person providing treatment can reach the crown of the head or the back of the head by rotating the wrists.

[0036] In this embodiment, the distance 31 from the front flat surface 22 to the upper end of the corner wall portions 17 is greater than the distance 30 from the upper end (front flat surface 22) of the neck placement wall portion 16 to the bottom portion 14 (see Figs. 10 and 11). In back shampooing, the person providing treatment performs treatment from the crown of the head of the person receiving treatment. Hence, hot or cold water from the shower head 13 splashes on the neck placement wall portion 16 and the corner wall portions 17. However, because the corner wall portions 17 are high, the hot or cold water is prevented from splashing over the corner wall portions 17.

[0037] In this embodiment, the distance 33 from the rear flat surface 24 to the bottom portion 14 is greater 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 portion 18 (see Figs. 10 and 11). In back shampooing, because a person providing treatment performs treatment from the crown of the head of a person receiving treatment, it is convenient if there is a large treatment space on the top wall portion 18 side, which is near the hands of the person providing treatment. If the top wall portion 18 is high, it is difficult for the person providing treatment to put his or her hands into the treatment space. In this embodiment, the top wall portion 18 is low and the bottom portion 14 is deep, which makes the shampoo bowl suitable for back shampooing.

[0038] In another embodiment of the present disclosure, the curvature of the side wall portions and the curvature of the corner wall portions may be set as desired as long as the top wall portion of the upper peripheral wall portion projects farther outward than the virtual top wall portion, and the curvature of the top wall portion is greater than the curvature of the side wall portions.

[0039] In another embodiment, there is no head support device. In this case, the neck of the person providing treatment is directly disposed on the front flat surface of the neck placement wall portion.

[0040] In another embodiment, the height of a portion of the side wall portion near the top portion is not equal to the height of the ball portion, on which the vicinity of the nape of the neck or the back of the head of the person receiving treatment is disposed, in the head support device attached to the neck placement wall portion.

[0041] In another embodiment, the height of a portion of the side wall portion near the top portion is completely equal to the height of the ball portion, on which the vicinity of the nape of the neck or the back of the head of the person receiving treatment is disposed, in the head support device attached to the neck placement wall portion.

[0042] In another embodiment, the distance from the front flat surface to the upper end of the corner wall portions is less than the distance from the upper end (front flat surface) of the neck placement wall portion to the bottom portion.

[0043] In another embodiment, the distance from the upper end (front flat surface) of the neck placement wall portion to the bottom portion is substantially equal to the distance from the front flat surface to the upper end of the corner wall portions.

[0044] In another embodiment, the distance from the rear flat surface to the bottom portion is less than the distance from the rear flat surface to the upper end of the top wall portion.

[0045] In another embodiment, the distance from the rear flat surface to the upper end of the top wall portion is substantially equal to the distance from the rear flat surface to the bottom portion.

[0046] Although the embodiments of the present disclosure have been described in detail above, the present disclosure is not limited to these embodiments. In the present disclosure, various design changes are possible without departing from the scope of the claims.Reference Signs List

[0047] 1 hairdressing apparatus 2 treatment station 3 seat unit 4 lifting unit 5 seat portion 6 leg rest portion 7 backrest portion 8 head support device 8a ball portion 9 shampoo bowl 10 pedestal 11 drain hole 12 water stop valve 13 shower head 14 bottom portion 15 peripheral wall portion 16 neck placement wall portion 17 corner wall portion 18 top wall portion 19 side wall portion 20 upper peripheral wall portion 21 lower peripheral wall portion 22 front flat surface 23 side wall step portion 24 rear flat surface (installation portion) 25 virtual top wall portion 26 first curved portion 27 second curved portion 28 third curved portion 29 fourth curved portion 30 to 33 distance 34 line 35 center line

Claims

1. A shampoo bowl having a treatment space surrounded by a bottom portion and a peripheral wall portion standing from a peripheral edge of the bottom portion, the peripheral wall portion including: a neck placement wall portion on which the neck of a person receiving treatment is disposed; corner wall portions connected to left and right sides of the neck placement wall portion; a top wall portion located on an opposite side of the treatment space from the neck placement wall portion; and side wall portions connected to the corner wall portions and the top wall portion, wherein the top wall portion is curved and projects farther outward in an arc than a virtual top wall portion in a case where a curvature of the top wall portion is smaller than a curvature of the side wall portions, and the curvature of the top wall portion is greater than the curvature of the side wall portions.

2. The shampoo bowl according to Claim 1, wherein the corner wall portions and the side wall portions are curved outward in an arc, and a curvature of the peripheral wall portion is greatest at the corner wall portions, next at the top wall portion, and smallest at the side wall portions.

3. The shampoo bowl according to Claim 1 or 2, wherein a height of the side wall portions is equal to a height of a head support device attached to the neck placement wall portion.

4. The shampoo bowl according to Claim 1 or 2, wherein a distance from an upper end of the neck placement wall portion to an upper end of the corner wall portions is greater than a distance from the upper end of the neck placement wall portion to the bottom portion.

5. The shampoo bowl according to Claim 1 or 2, wherein a distance from an installation portion where a shower head is installed to the bottom portion is greater than a distance from the installation portion to an upper end of the top wall portion.

6. A hairdressing apparatus comprising: a treatment station used by a person receiving treatment; and the shampoo bowl according to Claim 1 or 2, disposed behind a backrest portion of the treatment station.

Images