JP6035959B2 - Bathtub and bathing equipment - Google Patents

Description

  The present invention relates to a bath tub and a bathing apparatus that allow a bather to take a bath in a relaxed posture and can sufficiently give the bather a fatigue recovery effect by bathing.

  Conventionally, various proposals have been made so that bathers can relax in a bathtub. For example, Patent Document 1 below proposes a bathtub in which a stool for half-body bathing is integrally formed with the bathtub. In this case, an upward step is formed from the deep bottom of the bathtub to form a seating surface at a position above the deep bottom, while the side wall is used as a backrest and the seating surface is gradually lowered from the backrest toward the front. It forms in the concave curved surface so that it may go up (for example, refer FIG. 1 or FIG. 5 of patent document 1).

  Moreover, in patent document 2, the curved upper body support part which can support a bather's head to back is formed in the inner surface of one side part of the bathtub, and the buttock stopper forcing the sliding of the buttock is formed on the upper surface of the bottom plate part. However, it has been proposed to form a footrest portion at a lower position on the inner surface of the other side portion (see FIG. 1 of Patent Document 2).

  Further, in Patent Document 3, a vibrating body formed with a cushioning material and having a recess for placing a bather's head is mounted from the upper edge of the bathtub to the inner surface of the side wall, and the vibrating body is vibrated in its internal space. It has been proposed to provide a jet nozzle and to apply vibration by causing the hot water jetted from the jet nozzle to collide with the inner surface of the recess (see FIGS. 1 and 2 of Patent Document 3). (See figure).

JP 2001-258777 A JP 2006-6668 A Japanese Utility Model Publication No. 2-130288

  However, in all cases, it is considered that the conventional bathtub has caused unconscious tension to maintain posture, particularly from the back to the waist of the bather. It is thought that there are many cases that are not given. Therefore, the present inventor has variously measured the relationship between the bather's posture during bathing and the muscle condition of the bather at that time, and as a result, the state where the bather has relaxed the spine upright muscle group is the most relaxed. In order to increase the fatigue recovery effect of bathing, it was found that it is important to make the spine upright muscles sufficiently relaxed. In this regard, in the conventional bathtub, even if the bather's head was supported and his back leaned diagonally, the spinal column muscles were in a state of tension unconsciously. Conceivable. For example, as shown in FIG. 6 (a), the bather Y places his head on the upper end of the bathtub 100 or a pillow part formed there, and leans against the backrest part 101 formed diagonally on the bathtub wall. Even if it is worn, the head turns diagonally upward in the bathroom so as to warp from the neck, while the part in contact with the bathtub wall is only the back, there is nothing to support the part from the waist to the buttocks, the person himself Even with the piles that have been pulled out, the spine upright muscles have to be unconsciously tense. In addition, the hips tend to slide forward along the bottom of the bathtub, and the spine standing muscles fall into a more tense state, trying to keep the vertebral column from falling beyond the current level to stop sliding. Become. Here, the spine standing muscle extends from the shoulder to the buttocks on both sides of the spine, and plays a role of supporting the spine.

  In addition, as shown in FIG. 6 (b), if the cross section of the wall of the backrest 101 with the back resting is flat, outward from each of the vertebrae (cervical vertebrae, thoracic vertebrae, lumbar vertebrae, etc.) constituting the spinal column The protruding spinous process (particularly), especially the spinous process of the lumbar spine, hits the wall surface. And as bather Y moves the spine back to save his weight, the spinous process hits the wall and causes pain, so bather Y can rest assured, that is, he can relax and leave his back with peace of mind. Can not. As a result, the bather Y is in the direction of raising the spinal column in an S shape so as to retract the spinous processes of the lumbar vertebrae, and cannot be said to be in a state where the spine standing muscle group is loosened. In addition, the human body may be distorted as illustrated in FIG. 6C instead of left-right symmetry due to wrinkles or the like.

  In addition, when massage power is applied to a bather while taking a bath by means of a jet bath or the like, the muscles are relaxed, especially the spine standing muscle group, to increase the fatigue recovery effect of the massage force based on the jet jet. The present inventor has thought that it is important to develop a bath structure and bathing apparatus that can realize a posture that can be brought into such a state.

The present invention has been made in view of such circumstances, it is an object of the bathers and have use the bathtub shape suitable to achieve the attitude of the state of loosening the erector spinae muscles An object of the present invention is to provide a bathing device for guiding the patient to relax and produce a fatigue recovery effect.

In order to achieve the above object, in the present invention, as a bathing apparatus, a headrest portion formed at the upper portion of the inner wall surface , and a back holding portion formed continuously from the headrest portion to the lower portion of the inner wall surface are provided. Provided as the back holding portion, an escape recess extending linearly in a vertical direction with a width corresponding to at least the bather's spinal column width, and both side portions sandwiching the bather's spine at both side positions across the escape recess A support surface portion for supporting the back and a slope portion that expands at a steeper angle than the support surface portion at an outer position of each support surface portion are arranged in line symmetry with the escape recess as a center, and the escape recess It is set as the structure provided with the bathtub formed so that both the said support surface part and both slope part may have the cross-sectional shape which opens in V shape as a whole on both sides of the figure. In addition, in order to detect the sitting posture of the bather, the pressure sensor installed on both sides of the back holding portion of the bathtub with the relief recess interposed therebetween, and the bather based on the detection output from these pressure sensors In contrast, a bathing posture instruction means for guiding and instructing information related to posture correction is provided (claim 1).

In the case of the present invention, if the bather enters the bathtub, leans against the back holding part from the back to the waist, and leans the head against the headrest part, the bather's spinal column standing muscle group is sufficient. A relaxed state can be achieved. That is, the external occipital protuberance that protrudes backward from the head and the spinous process that protrudes backward from the spinal column escapes into the recess and avoids interference and contact with the wall surface. It is possible to realize a truly relaxed state without giving any. In addition, since both slope portions are spread at a steeper angle than the support surface portion at a position outside the support surface portion, both sides of the upper half of the bather can be pushed forward compared to the vicinity of the spinal column. At the same time, the posture of the bather can be sandwiched from both sides and the spine can be corrected so as to extend in a straight line in the vertical direction when viewed from the back. As a result, it is possible to avoid the spinal column standing muscle group from unconsciously falling into a tension state, and it is possible to place the spinal column standing muscle group in a posture in which the spinal column standing muscle group is surely relaxed. Ri by the tub on the following, to realize the attitude of the state, which certainly loosen the erector spinae muscles, become and Turkey it is possible to improve the fatigue effect of bathing. In addition, based on the detection information from the pressure sensor, it is possible to give the bather guidance information related to posture correction by the bathing posture instruction means. Based on such guidance information, the bather himself / herself can be prompted to correct the posture of the bather so that the spine of the bather can escape and is positioned in the recess or to properly extend the spine of the bather. By the above, the effect | action based on the said bathtub that the spinal column standing muscle group can be supported in the relaxed state reliably will be acquired reliably.

Te bath apparatus odor of the present invention, as a pre-Symbol both inclined surface of the bathtub, can be formed to direct the concave relief the spinal site of a bather by contact with upper body on both sides of the bather (according Item 2). By doing so, based on the presence of the both slope portions, the bather's spinal column is escaped and led to converge at the recessed portion, and the bather is sandwiched from both sides and the spinal column extends linearly in the vertical direction. Thus, it is possible to more reliably fulfill the role of correction.

Te bath apparatus odor of the present invention, to form a hip holding portion for holding the buttocks of the bather over the bottom wall from the bottom of the back in the holding portion of the tub, recessed below the bottom wall surface as the buttocks holding portion concave It can have a shape (Claim 3). By doing in this way, the bather who entered the bathtub sits in a state where the buttock is put in the buttock holding part, and the buttock of the bather is reliably held by the buttock holding part so as not to slide forward, The bather is relaxed with a sense of security and relaxes the spine upright muscle group without falling into a situation that inadvertently causes tension in the spine upright muscle group by attracting the upper body to prevent slipping etc. Will be able to.

Further, f Ddoresuto portion of the bathtub, the back holding portion and the buttocks holding portion, curved continuously in the vertical direction so as to be recessed inwardly can be made to configure the concave curved surface (claim 4). By doing so, the bather's head, back, waist and buttocks are grounded substantially continuously along the concave curved surface that is concavely curved inwardly, so that the bather can be erected in the standing column muscle group. Can be reliably supported in a relaxed state.

  And for a bathtub formed in a rectangular shape in plan view, the headrest portion and the back holding portion may be formed over the front surface in the width direction with respect to the inner wall surface on one side constituting the short side. (Claim 5). By applying in this way to the most popular shape of the bathtub, the present invention can be applied most effectively.

Further, with respect to more than bathing device can be made to comprise a jet nozzle disposed relative to the back holding portion so as to eject the water from the back holding portion of the tub (claim 6). By doing in this way, it becomes possible to give the massage effect by making the water flow spouted from a spout nozzle collide with a bather's back or waist | hip | lumbar part. In addition, since the ejection nozzle and the bather can be surely brought into a predetermined positional relationship by the bathing posture instruction means, the massage effect can be reliably given to the bather at a predetermined position. Become.

As described above, according to the bathing apparatus of the present invention, if the bather enters the bathtub, leans against the back holding part from the back to the waist, and leans the head against the headrest part, the bather In particular, the back spine muscles can be sufficiently relaxed. In other words, the external occipital protuberance protruding backward from the head and the spinous process protruding backward from the spinal column can be escaped and placed in the recess to avoid interference and contact with the wall surface. A truly relaxed state can be realized without adding extra tension. In addition, since both the slope portions expand at a steeper angle than the support surface portion at a position outside the support surface portion, both sides of the upper body of the bather are pushed forward compared to the vicinity of the spinal column. In addition, the posture of the bather can be sandwiched from both sides, and the spinal column can be corrected so as to extend in a straight line in the vertical direction when viewed from the back. As a result, it is possible to avoid the standing muscle group from falling into a tension state unconsciously, and it is possible to place the standing muscle group in a posture in which the spine standing muscle group is relaxed without fail. Or, more tub present invention comprises, the attitude of the state of surely loosened erector spinae muscles can be realized, it is possible to enhance the fatigue effect of bathing. In addition, based on the detection information from the pressure sensor, the bather can be given guidance information related to posture correction by the bathing posture instruction means, and based on the guidance information, the bather himself can take the bather's spine. Can be urged to correct their posture so that is positioned in the relief recess or so that its spine extends correctly. As described above, it is possible to reliably obtain the effect based on the bathtub of supporting the spinal column standing muscle group in a surely relaxed state.

According to the bathing apparatus according to claim 2, the both slopes are formed as both slope parts by contacting the both sides of the upper half of the bather so that the vertebral part of the bather escapes toward the recess. Based on the presence of the part, the bather's vertebral column is guided to escape and converge to the concave part position, and the role of correcting the vertebral column so that the vertebral column extends straightly by sandwiching the bather from both sides is further ensured Can be fulfilled.

According to the bathing apparatus which concerns on Claim 3, it forms the heel part holding part for hold | maintaining a bather's buttock from the lower part of a back holding part to a bottom wall surface, and is dented below a bottom wall surface as a buttock part holding part. By having the bather in the bathtub sit in a state where the buttock is put in the buttock holding portion, the buttock holding portion securely holds the bather's buttock so as not to slide forward. Will be able to. This allows the bather to relax with a sense of security without falling into a situation where the bather attracts the upper body in order to prevent slipping and inadvertently causes tension in the spinal column erect muscle group. The group can be in a relaxed state.

According to the bathing apparatus according to claim 4, by configuring the headrest part, the back holding part, and the buttock holding part by a concave curved surface that continuously curves in the vertical direction so as to be concave inward, The whole of the bather's head, back, waist and buttocks can be grounded substantially continuously along a concave curved surface that bends inwardly to ensure that the bather relaxes the spinal column muscles. Can be supported in any state.

According to the bathing apparatus which concerns on Claim 5, with respect to the inner wall surface of the one side which comprises a headrest part and a back holding part with respect to the bathtub formed in the rectangular shape by planar view, the width direction front surface By forming it over the range, the present invention can be applied most effectively to the most popular shape of the bathtub.

Moreover, according to the bathing apparatus which concerns on Claim 6, it is ejected from an ejection nozzle by providing the ejection nozzle arrange | positioned with respect to the back holding part so that a water flow may be ejected from the back holding part of a bathtub. A massage effect can be imparted by colliding the water flow against the back or waist of the bather. In addition, since the spray nozzle and the bather can be reliably brought into a predetermined positional relationship by the bathing posture instruction means, the massage effect can be surely given to the bather at a predetermined position. become.

Fig.1 (a) is a characteristic partial cross-sectional explanatory drawing of the bathtub used in 1st Embodiment of this invention, FIG.1 (b) is a partial vertical cross-sectional explanatory drawing in the AA line of Fig.1 (a). FIG.1 (c) is explanatory drawing which looked at the bather from the back side. FIG. 2A is a view corresponding to FIG. 1A of a bathtub used in the second embodiment, and FIG. 2B is a plan explanatory view of the bathtub. FIG. 3 is a perspective view of the second embodiment. 4A is a cross-sectional explanatory view of the position of the jet injection nozzle, and FIG. 4B is a front explanatory view showing an arrangement example of the pressure sensor. FIG. 5A is a diagram corresponding to FIG. 1A illustrating the third embodiment, FIG. 5B is a diagram corresponding to FIG. 1A illustrating the fourth embodiment, and FIG. It is a figure corresponding to Drawing 1 (a) showing a 5th embodiment. 6 (a) is a diagram corresponding to FIG. 1 (b) for comparison with the present invention, and FIG. 6 (b) is a diagram corresponding to FIG. 1 (a) for comparing with the present invention. (C) is a view corresponding to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 shows a bathtub used in the first embodiment of the present invention. Tub shown in FIG. 1 is an example shown in tub characteristic structure is best seen state of use in the present onset light, part of the inner wall surface of the inner peripheral wall of the tub (e.g., configured in a rectangular in plan view in a typical bath, and forming a characteristic shape portion of the tub to the inner wall surface) of the side wall constituting the short sides used in this onset bright.

  That is, the bathtub 1 of the present embodiment includes the back surface of the bather Y (the back of the head and the waist) with respect to the inner wall surface (hereinafter, the inner wall surface 11 constituting the short side in the plan view of the bathtub). The holding shape part 2 for holding the back of the upper body and the back of the buttocks is formed. As shown in FIG. 1B, the holding shape portion 2 also functions as a headrest portion 21 for holding the back of the head, a lumbar support for holding the waist, and a backrest for holding the back of the upper body. It consists of a back holding part 22 and a buttocks holding part 23 for holding the back of the buttocks. And these headrest part 21, the back holding part 22, and the buttock holding part 23 are inward with respect to the bathtub 1 smoothly continued in the up-down direction from the top end part of the inner wall surface 11 to the bottom wall surface 12 when viewed from the longitudinal section direction. It is formed by a concave curved surface that is concave (convex outward), so that all of the bather Y's head, back, waist and buttocks can be maintained in a grounded state without floating. .

  That is, the upper surface of the buttocks holding portion 23 is formed by a concave curved surface that is convex downward and concave upward so as to wrap around the entire buttocks of the bather Y sitting in a squat. While the lowest part 231 of the heel holding part 23 is set to be lower than the bottom wall surface 12 of the bathtub 1, a stepped shape is formed at the boundary part between the edge part far from the back holding part 2 and the bottom wall surface 12. The stopper portion 232 is formed. The thigh near the buttocks of the bather Y comes into contact with the stopper portion 232 so that the buttocks do not slide forward (to the right in FIG. 1B). In addition, the code | symbol 13 in FIG.1 (b) is the flange part of the bathtub 1. FIG. The back holding part 22 as a whole is also composed of a concave curved surface that is gently convex obliquely downward and gently concave obliquely upward, and has no boundary from the rear side of the buttock holding part 23 (left side in FIG. 1B). It is formed to be continuous by a curved surface. Further, the headrest portion 21 protrudes to a position above the flange portion 13 to a height that can cover the top of the bather Y's head, and gently protrudes backward (leftward in FIG. 1B) and forward (see FIG. 1). The headrest portion 21 is also formed so as to be continuous from the upper side of the back holding portion 22 by a curved surface having no boundary. Here, the headrest part 21 does not hold the bather Y's head in a state where the head is warped obliquely upward, but at a relatively steep angle so as to hold the head from the back so that the face faces substantially forward. It is formed so as to rise upward. This is because the headrest portion 21 is set so that the back support portion 22 extends obliquely upward as a whole, and the headrest portion 21 is oriented in substantially the same orientation, so that the head of the bather Y is oriented in substantially the same direction as the spine S. This is to hold it. As a result, the spinal column is held in a curved state that is slightly convex outward when viewed from the side, without holding the head's own weight and without causing the spinal column muscles to enter a useless tension state for holding the head. By doing so, the head can be held from the back of the bather Y in a relaxed state.

  On the other hand, the holding shape portion 2 is formed at the center position in the width direction (left-right direction in FIG. 1A) as a typical cross-sectional shape in the back holding portion 22 as shown in FIG. A relief recess 221, a support surface portion 222, 222 formed on both sides in the width direction of the escape recess 221, and slope portions 223, 223 formed on the width direction outer side of each support surface 222; As a whole, it is configured to be bent and curved into a V shape that is wide open. The buttock holding portion 23 is also formed to have the same cross-sectional shape as the back holding portion 22.

  The relief recess 221 is formed in a groove shape continuously in the vertical direction at least at the center position in the width direction with respect to at least the back holding part 22 and the headrest part 21, It is a shape part that accommodates the spinous processes protruding backward from the spine and plays a role so that they do not come into contact with the bathtub wall surface. The relief recess 221 only needs to have an opening width and depth that allow the spinous processes to enter, and the cross-sectional shape is not limited. Each support surface portion 222 is a portion that contacts and supports the back portions on both sides of the vertebral column S (see FIG. 1C) of the bather Y, and both inclined surface portions 223 and 223 are viewed in plan with respect to the center line X. It is composed of a line-symmetric slope inclined in a funnel shape, and guides the bather Y so that the spine S converges to the position of the center line X in the width direction, and sandwiches the posture of the bather Y from both sides so that the spine S It plays a role of correcting so that it extends in a straight line in the vertical direction when viewed from the back.

  The bather Y enters the bathtub 1 of the first embodiment described above, sits with the buttocks in the buttocks holding part 23, leans against the back holding part 22 from the back to the waist, and the head rests the headrest part 21. When leaning, the bather Y can be in a sufficiently relaxed posture, and in particular, the spine standing muscle group on the back can be sufficiently relaxed. At this time, the external occipital protuberance protruding backward from the head and the spinous process protruding backward from the spinal column (especially, the spinous process of the seventh cervical vertebra) are allowed to escape into the recess 21 to interfere with or contact the wall surface. Therefore, a truly relaxed state can be realized without giving extra tension to the spine upright muscle group. Furthermore, the buttock holding part 23 and the stopper part 232 can hold the bather Y's buttocks in a state of being reliably prevented from sliding forward, and the bather Y attracts the upper body to prevent slipping. Without falling into a situation that inadvertently causes tension in the standing muscles of the spine, it is possible to relax with a sense of security and to relax the standing muscles of the spine. By these, the fatigue recovery effect by bathing can be enhanced.

Second Embodiment
2 and 3 show a bathtub used in the second embodiment and a bathing apparatus configured using the bathtub. This second embodiment is particularly among those constituting the holding shape portion 2a as shown in FIG. 2 (a), in particular slightly different configuration than the bath of the first embodiment form state in cross-sectional shape of the back holding portion 22a In addition to being different from the first embodiment, the bath 1a includes a bathing posture instruction means for detecting the posture status of the bather Y and prompting a change to the proper posture status. This is different from the first embodiment. The other configurations are the same as those in the first embodiment, although a detailed description is omitted.

  As shown in FIG. 2 (a), the back holding part 22a of the second embodiment is formed as a V-shaped dent at the center position in the width direction (left-right direction in FIG. 2 (a)). The escape recess 221a, the support surface portions 222a and 222a formed so as to expand in a V shape on both sides in the width direction from the escape recess 221a, and the support surface portions at positions on both outer sides in the width direction of the support surfaces 222a. It is configured to include slope portions 223a and 223a formed so as to be curved more strongly than 222a. In plan view, as a whole, it has a curved shape that is closer to a V shape than the back holding part 2 of the first embodiment. Of course, the buttocks holding part 23a is also formed to have the same cross-sectional shape as the back holding part 22a.

  In the back holding portion 22a, jet nozzles 3 and 3 (see also FIG. 4A) for making a jet bath specification are embedded in the wall surface. Bubbles are mixed with hot water or only hot water without bubbles can be ejected from each ejection nozzle 3 into the bathtub. The position of each jet nozzle 3 is set so that the bath water flow can collide with the waist of the bather Y, and can give a massage effect to the waist. Further, pressure sensors 41 are provided on both support surface portions 222a and 222a of the back holding portion 22a, and similarly, pressure sensors 42 and 42 are provided on both sides in the width direction (left and right direction in FIG. 2) of the headrest 21a. It has been. For example, as shown in an enlarged state in FIG. 4B, the pressure sensor 41 arranges a predetermined number of sensor elements 411 in a predetermined range, detects an average pressure in the vicinity thereof, and outputs it to the controller 5. It is like that.

  The controller 5 includes an MPU, a RAM, and the like, and is configured to execute various operation controls in accordance with a pre-recorded program. A part of the controller 5 includes a bathing posture instruction processing unit. This bathing posture instruction processing unit receives the output from the pair of pressure sensors 41, 41, 42, and 42 in the width direction, and responds to the bias of the detected pressure value in pairs in the width direction. Is configured to guide / notify the correction of the bathing posture. For example, if the left side in the width direction is high and the right side is low in the pressure detected by the pressure sensors 41, 41, it is determined that the posture of the bather Y is biased to the left side, and the back position is shifted to the right side. For example, if the right side in the width direction is high and the left side is low in the detected pressures of the pressure sensors 42, 42, it is determined that the position of the head of the bather Y is biased to the right, and the position of the head is determined. Guidance and notification are made to shift to the left side. When the deviations between the pair of pressure sensors 41, 41, 42, 42 are substantially equal (for example, a predetermined threshold range), the bathing posture instruction process is ended. For the guidance / informing, for example, the remote controller 51 or other means (for example, speaker means) may be used. When the remote controller 51 is used, it may be performed by artificial voice guidance, character display on the display unit 511, or lighting display. The bathing posture instruction processing unit of the controller 5 described above, the pressure sensors 41, 41 or 42, 42, the remote controller 51, speaker means, and the like constitute bathing posture instruction means.

  Reference numeral 121 in FIG. 2B or FIG. 3 is a drain outlet of the bathtub 1a, and reference numeral 122 in FIG. 1B, FIG. 2B or FIG. 23 is a lead-out groove for draining bathtub hot water from the inside of 23a to the drain outlet.

  According to the second embodiment described above, in addition to the same functions and effects as those described in the first embodiment, the following functions and effects can be obtained. That is, compared with the first embodiment, the holding shape portion 2a of the second embodiment, particularly the back holding portion 22a, is configured by a smooth curved surface, so that the bather Y can be more relaxed. Moreover, since both the slopes 223a and 223a can make the bather Y converge on the position of the center line X of the spine S in the width direction, the bath water flow from the pair of jet nozzles 3 and 3 is directed to the bather Y. The spine S can be received at a symmetrical position across the spine S. Thereby, it is possible to apply a massage force evenly to symmetrical positions across the spinal column S, and further loosen the unconscious state of the spine standing muscle group, thereby giving a higher fatigue recovery effect. Furthermore, when the posture of the bather Y is biased, the pressure sensor 41, 41, 42, 42 can detect the bias and can provide information on the correction of the bathing posture from the remote controller 51 or the like. In addition to the convergence function to the center line X position by the both slope portions 223a and 223a, the bather Y can be prompted to correct the posture directly.

<Other embodiments>
The present invention is not limited to the first and second embodiments described above, but includes other various embodiments. That is, as in the third embodiment shown in FIG. 5A, the back holding portion 22b of the holding shape portion 2b includes an escape recess 221b and slope portions 223b and 223b similar to those of the first embodiment, and particularly, both support surface portions. You may make it comprise what formed 222b and 222b so that it might mutually extend on the same plane. Further, as in the fourth embodiment shown in FIG. 5 (b), the back holding portion 22c of the holding shape portion 2c extends on the same plane as the third embodiment at both side positions with the relief recess 221c interposed therebetween. The supporting surface portions 222c and 222c may be provided, and the inclined surface portions 223c and 223c formed by smooth concave curved surfaces may be continued from the supporting surface portions 222c and 222c. Further, as in the fifth embodiment shown in FIG. 5 (c), as the back holding portion 22d of the holding shape portion 2d, a recessed groove-like escape recess 221d protruding rearward is used instead of the escape recess 221a of the second embodiment. You may make it form.

  Instead of the back holding part 22a of the second embodiment, the back holding part 2 of the first embodiment or the back holding parts 22, 22b, 22c, 22d of any one of the third to fifth embodiments is used. You may comprise the bathing apparatus as demonstrated in embodiment. Moreover, although the thing using the bathing posture instruction | indication processing part stored in the controller 5 was illustrated as a bathing posture instruction | indication means of 2nd Embodiment, it is not restricted to this, Bathing posture instruction | indication processing part is used for various remote control (For example, remote control 51 or And other remote controllers connected to the hot water supply device) and output detection signals from the pressure sensors 41, 41, 42, 42 to separate from the controller 5 and use the remote controller to take a bathing posture. You may make it comprise an instruction | indication means.

  The present invention is not limited to the rectangular bathtubs 1 and 1a in the plan view shown in the first or second embodiment as the overall shape of the bathtub, but is a circular or square bathtub or a polygonal bathtub in the plan view. May be applied. In addition, although the foot usually reaches the inner wall surface on the side where the foot of the bather extends and often acts as a footrest, if the foot does not reach, the footrest 14 (see FIG. Bathers can be more relaxed if b) is formed separately.

1, 1a Bath 3 Spray nozzle 5 Controller (Bathing posture instruction means)
11 Inner wall surface 12 Bottom wall surface 41, 42 Pressure sensor (bathing posture instruction means)
51 Remote control (bathing posture instruction means)
21 and 21a Headrest part 22,22a, 22b, 22c, 22d Back support part 23,23a Hip part holding part 221,221a, 221b, 221c, 221d Escape recessed part 222,222a, 222b, 222c Support surface part 223,223a, 223b, 223c Slope

Claims (6)

A headrest portion formed on the upper portion of the inner wall surface, and a back holding portion formed continuously from the headrest portion to the lower portion of the inner wall surface, wherein the back holding portion corresponds to at least the spine width of the bather An escape recess extending linearly in the vertical direction with a width, a support surface portion for supporting the backs of both sides sandwiching the bather's spinal column at each side position across the escape recess, and an outer position of each support surface portion The inclined surface portion that expands at a steeper angle than the support surface portion is arranged in line symmetry with the escape recess as a center, and the support surface portion and the both slope portions as a whole are V-shaped across the escape recess. A bathtub formed to have a cross-sectional shape that opens in a shape ,
Pressure sensors respectively installed on both sides of the escape recess with respect to the back holding part of the bathtub in order to detect the sitting posture of the bather;
A bathing apparatus comprising bathing posture instructing means for guiding and instructing a bather of information related to posture correction based on detection outputs from these pressure sensors. The bathing device according to claim 1,
The both slope portions are bathing apparatuses formed so as to direct the bather's spine portion to the escape recess by contacting both sides of the upper half of the bather . The bathing device according to claim 1 or 2,
The hip holding portion for holding the buttocks of a bather from lower back holding portion to the bottom wall surface is formed, the buttocks holding portion has a concave shape recessed downward from the bottom wall, bath unit. The bathing device according to claim 3,
The said headrest part, a back holding | maintenance part, and a buttocks holding | maintenance part are bathing apparatuses comprised by the concave curved surface which curves continuously in an up-down direction so that it may become concave inward. The bathing device according to any one of claims 1 to 4,
A bathing apparatus , which is formed in a rectangular shape in plan view, and wherein the headrest portion and the back holding portion are formed across the front surface in the width direction with respect to an inner wall surface on one side constituting a short side. The bathing device according to any one of claims 1 to 5 ,
A bathing apparatus, comprising a jet nozzle arranged with respect to the back holding part so as to jet a water flow from the back holding part of the bathtub.

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