JPH1147017A - Headrest for bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form and keep the comfortable bathing posture of a bathing person by fitting a headrest on a inclining surface inside a bathtub mainbody. SOLUTION: The inclining surface by which a person can lie on his back is provided inside the bathtub mainbody and the headrest 10 for supporting a head part is fitted to the upper part of the inclining surface or a top plate surface continued from the inclining surface concerning the bath headrest 1. The headrest 10 is freely attachably/detachablly fitted by providing a divided groove 14 consisting of a guide part 15 and a holding part 17 at one side in a longitudinal direction and inserting the guide part 15 of the divided groove 14 to the bending piece 25 of a support member 20 which is fixed on the inclining surface with elastic deformation. Thus, the bathing person lies on his back on the inclining surface and put his head part on the headrest 10 so that he can be bathing in the relaxed posture without straining a whole body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headrest for a bath tub which is mounted in a bath tub body so that a bather can easily take a bathing posture.

[Prior art]

2. Description of the Related Art In recent years, in a relatively shallow western bathtub or the like, an inclined surface (a so-called backrest) is provided on an inner surface of a bathtub body so as to be inclined from an upper portion to a lower portion in order to make a bather's bathing posture easier. I have.

[0003] In this case, by taking a bath with the body lying on the inclined surface, the posture of the bather is relaxed with the whole body extended as compared with the case of bathing in a bathtub without an inclined surface. Therefore, for bathers,
The cramped posture during bathing has been reduced. .

[0004]

By the way, in the above-mentioned conventional bath tub, when a bather is lying on the inclined surface, if he wants to obtain support for the head, he or she is required to adjust the head according to the inclination of the inclined surface. It is necessary to warp the part backward more than necessary. Therefore, the posture of the bather is such that the chin is raised, and there is a problem that if the posture is maintained, breathing will be felt.

[0005] Further, if the head is not allowed to follow the inclined surface, the head has no support.
Therefore, in this case, the bather must continue to apply excessive force to the head, which is inconvenient when bathing for a long time.

[0006] The present invention has been made in view of such circumstances, and by mounting the bathing body on an inclined surface formed in the bathtub body, the bathing posture of the bather can be made more natural and comfortable. An object of the present invention is to provide a bathtub headrest that can be formed.

[0007]

According to a first aspect of the present invention, there is provided a headrest for a bath tub having an inclined surface on which a body can be supine in a bathtub body, and a head supported near an upper portion of the inclined surface. A headrest is installed.

According to the present invention, the headrest is mounted near the upper part of the inclined surface in the bathtub body, so that the bather can lie on the inclination of the inclined surface and place the head on the headrest, The bathing posture can be formed and maintained without applying excessive force to the whole body.

[0009] In the invention according to claim 2, the vicinity of the upper portion is the upper end of the inclined surface. According to the third aspect of the invention, the upper part is a top plate surface that follows the inclined surface, and the headrest is attached along the inclined surface.

[0010] According to these inventions, not only when the bather sits in the bathtub but also when the bathing person is lying on his / her face in accordance with the inclination of the inclined surface, the head protrudes from the top surface of the bathtub body. Even in this case, the head can be put on the headrest.

According to a fourth aspect of the present invention, the headrest is attached to a support member fixed to the inclined surface. Also,
According to a fifth aspect of the present invention, the headrest is detachably attached to the support member.

In these inventions, the headrest can be mounted on the inclined surface via the support member. In particular, by making the headrest detachable from the support member,
The headrest can be detached and washed, and the headrest itself can be replaced.

According to a sixth aspect of the present invention, the headrest is formed of an elastic foam material.

In the present invention, since the weight of the head is absorbed by the elastic force of the headrest, a soft feeling is obtained without applying excessive force to the head. In addition, the headrest can be elastically deformed and can be detached from the support member.

In the invention according to claim 7, the surface of the headrest is subjected to a non-slip treatment.

According to the present invention, when the head is placed on the headrest by the non-slip treatment of the surface of the headrest,
It is possible to prevent the head from descending along the inclined surface.

According to the eighth aspect of the present invention, the headrest is provided with a notch groove on one side in the longitudinal direction, and this headrest is inserted into and held by the support member from the notch groove.
According to the ninth aspect of the present invention, the support member is provided with a curved piece along the outer shape of the head, and the headrest is inserted into the curved piece from the cut groove and held.

According to the present invention, the headrest is attached to the inclined surface only by being inserted from the cut groove toward the support member. In particular, when the cutout groove of the headrest is inserted into the curved piece along the outer shape of the head of the support member, the feeling of putting the head on the headrest is improved. In addition, by fitting the headrest into the curved piece, the headrest is prevented from rotating in the vertical direction on the inclined surface.

According to a tenth aspect of the present invention, the split groove is formed with an outwardly open tapered guide portion for guiding the fitting of the headrest into the curved piece, and holds the curved piece in a retaining state. A narrow holding portion is formed.

According to the present invention, the headrest enters from the opening of the split groove which is opened outwardly, and is inserted into the curved piece while being guided by the tapered guide portion. It comes into contact with the narrow holding portion, and a retaining state is formed and held.

According to the eleventh aspect of the present invention, the vibrating body is detachably accommodated in the headrest.

According to the present invention, since the vibrating body is accommodated in the headrest, a massage effect is given to the head during bathing when the vibrating body is driven.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a bathtub headrest according to the present invention will be described below with reference to FIGS.

The bathtub headrest 1 is attached to a bathtub 5 in which an inclined surface 51 on which a body can lie is formed on the inner surface of a bathtub body 50. The headrest 10 supports a head, and the headrest 10 10 for bathtub body 50
And a support member 20 that can be attached to the camera.

It is preferable that the headrest 10 has a curved shape such that at least the head contact portion 11 that contacts the head H conforms to the outer shape of the head H. In the present embodiment, the headrest 10 The whole has a curved shape,
It is formed in a long cylindrical shape. The headrest 10 can be formed of a material having elasticity, and for example, a foamed material such as urethane rubber can be used. The surface 12 of the headrest 10 can be subjected to a non-slip treatment for the head H. In the present embodiment, small irregularities are formed over the entire surface 12. Surface 12
On the lower side, a cut groove 14 is provided in the longitudinal direction. The cut groove 14 has a guide portion 15 for guiding the support member 20 of the headrest 10 to be inserted thereinto, and a headrest 1.
A holding portion 17 is provided substantially at the center of the side surface 13 of the O. 0 and is fitted with the headrest 10 and holds the headrest 10 in a retaining state at the same time. A guide surface 16 is formed in the guide portion 15 so as to face the holding portion 17 in an outwardly tapered shape from the opening of the slit 14 toward the holding portion 17. It is formed so that it becomes narrower than the outer diameter of the support piece 25 toward it. On the other hand, the holding unit 1
7 is formed to have substantially the same diameter as the support piece 25,
In a normal state, the opening of the holding portion 17 (the connection portion with the guide portion 15) is narrower than the support piece 25, thereby forming a state in which the holding piece 17 is prevented from being removed from the support piece 25.

The support member 20 is composed of a pair of legs 21 and a support piece 25 extending from the legs 21 in the horizontal direction. This leg 21 is used for the headrest 10
The supporting pieces 25 are extended from the upper portions of the pair of leg portions 21 in a curved shape along the outer shape of the head so as to connect them. From the lower end of the leg portion 21, a bolt portion 22 is provided as a screwing portion that can be screwed into the bathtub body 50.
The leg 21 is rotatable together with the bolt 22, and is connected to the support piece 25 via a rotation shaft 23. The legs 21 and the support pieces 25 can be formed using a hard material that can support the headrest 10 such as a stainless steel material or a synthetic resin material. It is preferable to carry out a rust prevention treatment such as putting.

Here, the bathtub 5 in the present embodiment is
Bathtub body 50, cover 60, support beam 70, drainage mechanism 8
0, a bathtub supporting leg 90.

The bathtub body 50 can be made of an elongated western style with a relatively shallow bottom, and its inside can be supine on one short side to ease the bathing posture of the bather. An inclined surface 51 is provided. Slope 5
The inclination angle of 1 can be set in a range of about 100 to 160 degrees with respect to the bottom of the bathtub, and is preferably about 120 degrees as shown in the figure. On the upper part of this inclined surface 51,
A nut portion 55 that forms a threaded state with the bolt portion 22 is embedded and fixed at a position corresponding to the leg portion 21. On both longitudinal side surfaces of the inner surface of the bathtub main body 50, an armrest 52 for supporting a bather's arm and hand and a handle 53 for the bather to put his / her hands on are provided. This bathtub body 50 is
It is manufactured by molding and the like using stainless steel, FRP (fiber reinforced synthetic resin) widely used as a bathtub manufacturing material, and the like. In addition, instead of polyester widely used as a main material of FRP, FRA in which glass fibers are reinforced with an acrylic synthetic resin material can be used. As the FRA, for example, a product name “PX200” manufactured by Mitsubishi Rayon Co., Ltd. can be used as a material. It has excellent hot water resistance under normal temperature (39-45 ° C.), and is a JIS thermoplastic bath (JIS-A).
5709) and glass fiber reinforced polyester bathtub (JIS
-A5704).

The cover 60 is provided on the top plate surface 50 of the bathtub body 50.
It is formed in a box shape having an open top so that it can be easily fitted and assembled to a.
It covers the bottom. In other words, the bathtub body 50 has the top plate surface 50a bent outwardly into a substantially U-shaped cross section, and the top plate surface 50a of the cover 60 is engaged inside the ribs of the top plate surface 50a, and the means for welding, bonding, etc. Is integrated. The cover 60 has a double structure with the bathtub body 50 to form a side gap S2 and a bottom gap S3 between the side surface and the bottom surface of the bathtub body 50. A large inclined surface gap S1 is formed on the 51 side. Also,
On the upper part of the side wall 61, a handle 65 for handling during transportation is provided.
Can be provided. In addition, this cover 60
It is convenient for manufacturing to use the same material as the bathtub body 50,
The bathtub body 50 can be made of a different material.

The support beam 70 can be formed in the shape of a prism, and is interposed between the fitted bottom surface of the bathtub body 50 and the bottom wall 62 of the cover 60 so that the bathtub body is placed inside the cover 60. At the same time, the bottom gap S3 is maintained.

The drainage mechanism 80 includes an overflow port 81 opened at the top of the bathtub body 50, an overflow pipe 82 connected to the overflow port 81, a drainage port 83 opened at the bottom of the bathtub body 50, and a drainage port 83. And a drain pipe 85 connected to the drain port 83 and penetrating through the bottom wall 62 of the cover 60. Drain pipe 85
Is bent along the bottom wall 62 of the cover 60, the opening intersects the bathtub support leg 90. The overflow pipe 82
Are branched and connected to a drain pipe 85.

The bathtub support leg 90 is connected to the bottom wall 62 of the cover 60.
And the whole of the above-described parts is supported on the installation surface via a cover 60. This bathtub support leg 90 has a pipe type,
A hard load-bearing vibration damping structure made of a porous metal or ceramic material is provided. Bathtub support leg 90
Is made of a vibration damping material such as rubber,
Preferably, the support 2 is made of a metal material or a ceramic material. Although not shown, a caster structure that rolls the bathtub support leg 90 can be used. In such a case, for example, four casters are attached to the position of the bathtub support leg 90 so that portability can be improved. It will be good.

Next, a method of using the bathtub headrest 1 will be described. First, the bathtub main body 50, the cover 60, the support beam 70, the drainage mechanism 80, and the bathtub support leg 90 of the bathtub 5 are assembled, transported via the handle 65, and set at a desired position. Here, since the bathtub main body 50 and each part such as the cover 60 are separated, only the bathtub main body 50 may be processed for mounting the bathtub headrest 1, and the nut portion 55 for mounting the bathtub headrest 1 is embedded. Processing can be performed easily. When the bolt portion 22 of the leg portion 21 is positioned toward the nut portion 55 and the leg portion 21 is rotated via the rotation shaft 22, the bolt portion 22 starts screwing with the nut portion 55 and the bathtub body 50 The support member 20 is attached to the inclined surface 51 of the support.

The opening of the cut groove 14 of the headrest 10 is aligned with the curved shape from above the support piece 25,
When the headrest 10 is pushed in from above, the support piece 25 is guided by the guide surface 16 and starts to enter the cut groove 14. At this time, the spacing between the guide surfaces 16 expands in accordance with the approach of the support piece 25 by the elastic action of the headrest 10, so that the support piece 25 reaches the holding portion 17 (FIGS. 4 and 5). When the supporting piece 25 is fitted into the holding portion 17, the facing distance between the guide surfaces 16 is released from the expanded state. Therefore, in the holding portion 17, the facing space of the guide surface 16, which is an opening, is narrower than the support piece 25, so that the support piece 25 is prevented from being detached from the holding portion 17. And the bathtub body 5 of the headrest 10
The installation to the 0 is completed.

The bathtub main body 50 to which the bathtub headrest 1 is attached is provided with a headrest 1 even if a bather takes a bath.
Hot water W can be stored to the extent that 0 is not immersed.
When the bather takes a bath, he / she lies on the inclined surface 51 and then puts the head H on the curved shape of the head contact part 11 of the headrest 10 (FIG. 6). Thus, the bather has a state in which the head H is supported by the headrest 10 and the chin is pulled, so that the bathing posture is relaxed. At this time, since the headrest 10 has an elastic force, the weight of the head H is absorbed by the elastic force, and the bather does not need to apply an excessive force to the head H. In addition, since the surface 12 of the headrest 10 is subjected to the uneven anti-slip treatment, it is possible to prevent the head H from sliding down along the inclined surface 51. Furthermore, since the headrest 10 has a cylindrical shape, a soft abutting state is formed with the head H, while the headrest 10 is inserted and held in the curved support piece 25, so that the head H The headrest 10 can be prevented from rotating in accordance with the movement of the headrest.

On the other hand, the headrest 10 is released from the support piece 25 by pulling upward in this state because the retaining portion 17 is released from the retaining state by slightly expanding the guide portion 15. it can. Thus, the headrest 10 can be easily cleaned even after being once attached to the bathtub body 50, and the headrest 10 can be replaced.

According to the present embodiment, by mounting the bathtub headrest 1 above the inclined surface 51 in the bathtub main body 50, the bather puts his / her body up and the head H on the headrest 10. So you can
While the whole body can be approximated to a stretched state, a state in which the chin of the head H is pulled can also be formed, and a comfortable bathing posture can be maintained during bathing.

In the bathtub headrest 1, the headrest 10 can be easily attached to and detached from the support member 20, so that the headrest 10 in contact with the head H can be easily cleaned or replaced.

Further, since the headrest 10 has elasticity, the weight of the head H can be absorbed, and the necessity of applying excessive force to the bather can be eliminated. Further, the surface 12 of the headrest 10 is subjected to a non-slip treatment to prevent the head H from sliding down, and the headrest 10 is inserted into and held by the curved support piece 25 to hold the headrest 10 against the support piece 25. Since the rotation of the headrest 10 in the vertical direction is prevented, the bathing posture can be maintained even when bathing for a long time.

As shown in FIGS. 10 and 11, the support member 20 is fixed to the top plate surface 50a following the inclined surface 51 of the bathtub body 50, and the headrest 10 is attached to the head contact portion 1 as shown in FIGS.
1 can be attached along the inclination of the inclined surface 51. Thus, even when the head H of the bather jumps out from the top board surface 50a upward, the bather can form the support state of the head H at the same time as the body is lying down. In particular, as shown, the height of the headrest 10 from the top plate surface 50a,
By changing the fixed position of 0 or the like, it is possible to form a support state corresponding to the position of the head H that changes according to the posture and body shape of the bather.

The headrest 10 is shown in FIG.
As shown in FIG. 2, it is formed into a tube shape by a synthetic resin material such as a rubber material or the like, and is formed into a bag shape which expands into a shape similar to the above embodiment by injecting a gas such as air or a liquid such as water. can do. Thereby, at the same time as having an elastic force, the surface is formed of a rubber material, so that a non-slip effect can be obtained without performing a treatment.

FIGS. 7 to 9 show another embodiment of the bathtub headrest, in which the headrest 10 can accommodate a vibrating body.

An accommodation groove 19 for accommodating a vibrator 40 as a vibrator for driving a battery is formed on the opposite surface 18 of the headrest 10 from the head contact portion 11. The accommodation groove 19 has a slightly smaller diameter than the outer diameter of the vibrator 40, and has a depth such that the entire vibrator 40 can be accommodated. Thereby, when the vibrator 40 is pushed into the accommodation groove 19, the vibrator 40 is elastically held by the elastic force of the headrest 10. Therefore, since the vibrator 40 can be easily attached to and detached from the accommodation groove 19, the battery can be easily replaced.

Incidentally, the vibrator 40 is accommodated in the accommodation groove 19.
In the case of being housed in the main body, the disc-shaped switch portion 42 provided on the upper surface side of the vibrator main body 41 is pushed in with the outside facing outward. Thus, the switch unit 42 can be operated from outside the headrest 10. In addition, by increasing the surface area of the switch section 42, the operation can be performed extremely easily and reliably.

Here, the vibrator 40 is configured as shown in FIG. That is, a slide lid 41 a that is opened when the battery 43 is replaced is provided at the bottom of the vibrator body 41. Electric power from the battery 43 is supplied to the motor 45 via the lead wires 43a and 43b and a slide switch 44 that performs a sliding operation in accordance with the operation of the switch unit 42. The motor 45 is held inside the vibrator main body 41 via a buffer rubber 46, so that the occurrence of displacement or the like due to vibration or the like is suppressed.
On both sides of the motor 45, drive shafts 4 protruding in the same line are provided.
7a and 47b are provided. These drive shafts 47
Eccentric rotors 48a and 48b are attached to a and 47b. The eccentric positions of the eccentric rotors 48a and 48b are in a positional relationship shifted from each other by 180 degrees. Thereby, the phase of the wave of the vibration by the eccentric rotors 48a and 48b is shifted by 180 degrees. When the switch section 42 is pressed, the slide switch 44 moves to the ON side, and the eccentric rotors 48a and 48b rotate by driving the motor 45, thereby generating vibration.

An elastic piece 200 protruding from the lower end of the leg portion 21 is provided so as to be attachable to the bathtub body 50. The elastic piece 200 includes a leg 201 protruding in a forked shape and a locking portion 202 bent outward at the tip of the leg 201, and a locking hole 500 formed in the bathtub body 50 from above. By being pushed into the bathtub body 50
It is designed to be locked by pressure. And the locking part 20
The lower surface 2 is formed as a tapered surface 202a as an inclined surface facing outward and upward, and functions as a guide surface at the time of pushing. The upper surface is locked as a locking surface 202b at the periphery of the locking hole 500 to support the support member. 20 locking states are formed.

The bathtub headrest 1 having the above-described structure.
Can be attached by pushing the leg portion 21 into the bathtub body 50. At this time,
The support member 20 can be attached not only to the inclined surface 51 but also to the top plate surface 50a as in the above embodiment. After the head H is put on the headrest 10, the disk-shaped switch portion 42 of the vibrator 40 stored in the storage groove 19 of the headrest 10 is
1 Press down from above. As a result, the slide switch 44 moves to the ON side, and the eccentric rotors 48a and 48b rotate by driving the motor 45, so that vibration is given. When the driving of the vibrator 40 is stopped, the slide switch 44 is returned to the off side by depressing the switch unit 42 again, and the driving of the motor 45 is stopped.

According to the present embodiment, the bathtub main body 5 is formed by utilizing the resilient structure of the elastic piece 200 of the leg 21.
The leg portion 21 can be easily attached by pushing it into the 0 locking hole 500.

Further, the head H is put on the headrest 10,
By driving the vibrator 40, comfortable vibration can be given to the head H even during bathing, and a massage effect can be given.

Although not shown, after mounting the vibrator 40, the surface of the headrest 10 is wound around the headrest 10 so as to cover the accommodation groove 19, and the wound state is maintained by a fastener, a hook or the like. A cover member can be attached. Thus, it is possible to prevent the vibrator 40 from being damaged by wetting when the hot and cold water W scatters on the vibrator 40.

Further, in the present embodiment, the vibrator 40 as a vibrator is used to impart a massage effect. However, the present invention is not limited to this. A massage effect can be imparted by the occurrence. Furthermore, by forming the curved piece 25 with a magnetic material instead of being accommodated in the headrest 10, a massage effect can be obtained without performing special processing on the headrest 10.

[0052]

As described above, according to the headrest for a bathtub of the present invention, by mounting the headrest near the upper part of the inclined surface on the inner surface of the bathtub body, the bather can rest his / her body while lying down. Can be put on the headrest. Therefore, the bather can approach a relaxed state in which the whole body is stretched and the head can form a state in which the chin is pulled, so that the bather can form and maintain a comfortable bathing posture when bathing. Can be. Therefore, a comfortable bathing space can be formed without feeling cramped even when bathing for a long time.

Further, by making the headrest detachable from the support member, the headrest can be easily cleaned and replaced. Therefore, the design can be made in consideration of hygiene management in the bathtub.

Further, by giving the headrest an elastic force, it is possible to absorb the weight of the head and eliminate the need for the bather to apply excessive force. In addition, since the surface of the headrest is subjected to a non-slip treatment, and a cutout groove of the headrest is inserted along a curved piece directed in the horizontal direction, the rotation of the inclined surface of the headrest in the vertical direction can be prevented. Is prevented from sliding down along the inclined surface. Therefore, the bather can maintain a comfortable bathing posture while considering the safety during bathing.

Further, by placing the head on the headrest, a comfortable vibration can be given to the head even during bathing, and a massage effect can be obtained simultaneously with bathing.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a bathtub headrest according to the present invention.

FIG. 2 is an exploded perspective view showing the bathtub headrest in the embodiment of FIG.

FIG. 3 is a view showing a state in which the bathtub headrest is mounted on the bathtub body in the embodiment of FIG. 1;

FIG. 4 is a cross-sectional view showing a step of attaching a headrest in the embodiment of FIG. 1;

FIG. 5 shows a headrest according to the embodiment in FIG. 4;
It is sectional drawing which shows the attachment process following.

FIG. 6 is a side view showing a use state of the bathtub headrest in the embodiment of FIG. 1;

FIG. 7 is an exploded perspective view showing another embodiment of the bathtub headrest according to the present invention.

FIG. 8 is a cross-sectional view showing a state in which the bathtub headrest is mounted on the bathtub body in the embodiment of FIG. 7;

FIG. 9 is a diagram showing an internal configuration of the vibrator in the embodiment of FIG.

10 is a cross-sectional view showing a state in which a support member is attached to a top plate surface in the bathtub headrest of FIG.

11 is a cross-sectional view showing a state in which a support member is attached to a top plate surface in the bathtub headrest of FIG. 1;

FIG. 12 is a sectional view showing another example of the headrest of the bathtub headrest of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 headrest for bathtub 5 bathtub 10 headrest 12 surface (of headrest) 14 cutting groove 15 guide portion 16 guide surface 17 holding portion 20 support member 21 leg portion 25 support piece (curved piece) 40 vibrator (vibrator) 50 bathtub body 50a Plate surface 51 Inclined surface H Head

Claims (11)

[Claims] 1. A headrest for a bathtub, wherein an inclined surface on which a body can be supine is provided in a bathtub body, and a headrest for supporting a head is attached near an upper portion of the inclined surface. 2. The headrest for a bathtub according to claim 1, wherein the vicinity of the upper portion is an upper end of an inclined surface. 3. The headrest for a bathtub according to claim 1, wherein the vicinity of the upper portion is a top plate surface following the inclined surface, and the headrest is attached along the inclined surface. 4. The headrest for a bathtub according to claim 1, wherein said headrest is attached to a support member fixed to an inclined surface or a top plate surface. 5. The headrest for a bathtub according to claim 4, wherein the headrest is detachably attached to a support member. 6. The headrest for a bathtub according to claim 1, wherein said headrest is made of an elastic foam material. 7. A bathtub headrest according to claim 1, wherein the headrest has a surface subjected to a non-slip treatment. 8. The headrest for a bathtub according to claim 4, wherein the headrest is provided with a notch groove on one side in the longitudinal direction, and is inserted and held in the support member from the notch groove. 9. The headrest for a bathtub according to claim 8, wherein the support member is provided with a curved piece along the outer shape of the head, and the headrest is inserted into and held by the curved piece from a cut groove. 10. A narrow holding portion for forming a guide portion on an open taper for guiding the insertion of the headrest into the curved piece, and for holding the curved piece in a retaining state, in the cut groove. The headrest for a bathtub according to claim 8 or 9, wherein the headrest is formed. 11. The headrest for a bathtub according to claim 1, wherein a vibrating body is detachably accommodated in the headrest.