JP2010094148A - Bathtub device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub device allowing a bathing person to continuously get exercise. <P>SOLUTION: The bathtub device includes: a first spout 31 and a second spout 32 disposed on a bathtub wall surface 2b to spout jets to the soles of feet of a user M; a spout drive part 4 to spout water from the first and second spouts 31 and 32; and a control part 5 to control the drive part 4 to change the state of the jets spouted from the first spout 31 and the second spout 32. The control part 5 allows the user M to flex legs by spouting jets to the soles. The first and second spouts 31 and 32 are disposed at such a height on the wall surface as to allow the user to flex all the leg joints, knee joints and hip joints with the jets, and are separate from each other with a distance approximately of the shoulder-width of the user M. The spout drive part 4 permits spouting of a sufficient quantity of water for the user to flex all the leg joints, knee joints and hip joints of the user. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

Aspects of the present invention generally relate to bathtub devices, and more particularly, to bathtub devices that allow bathers to exercise.

In recent years, interest in health and relaxation has been increasing. In general household bathtubs, products having a water bath function are widely deployed. The main purpose of the water bath products is to massage the bather with water, recover from fatigue, and heal.

For example, Patent Document 1 describes that the discharge amount and the discharge pressure of flowing water are controlled by making it possible to change the rotation speed of the flowing water circulation pump instead of a uniform flow.

Moreover, as a partial massage, Patent Document 2 discloses a circulating bathtub in which a footrest portion is provided inside the bathtub and a discharge port for ejecting a jet is provided in the footrest portion.

Patent Document 3 discloses a massage device in which the pitch intervals of the massage protrusions are narrowly arranged along the erection column in order to massage the muscles of the back by massage.

On the other hand, there is also a proposal to exercise in the bathtub. Patent Document 4 discloses a technique for providing a step that can be stepped into a bathtub. A stepping load is applied to the step board by a spring, and the bather can exercise by stepping on the step board with one foot while sitting.
Japanese Patent Laid-Open No. 3-16568 JP 2005-287541 A JP 2000-2333014 A JP 2003-236014 A

As described above, the bath apparatus in a general household bathtub is mainly massaged to bathers. For this reason, the devices are arranged so that the muscles of the back are cramped. There are few conventional bathtub devices aimed at strengthening muscle strength. On the other hand, the technology of providing a stepping platform that can be stepped into the bathtub requires considerable willingness to exercise by itself for a person who does not have exercise habits to exercise. In particular, when taking a bath, it is difficult to exert the power of the will because it is in a relaxed mental state. For this reason, even if exercise equipment is installed in the bathtub, it is expected that the exercise will not last long. In addition, there is a problem that it is troublesome to attach / remove exercise equipment.
The objective of this invention is providing the bathtub apparatus which can make a bather exercise continuously.

  According to one aspect of the present invention, a bathtub, a first bathtub wall surface provided on the bathtub and capable of being backrested, a bathtub bottom surface and a first bathtub wall surface with which a collar portion comes into contact when the back wall is seated on the first wall surface A second bathtub wall surface provided opposite to the second bathtub wall surface, a first water discharge unit and a second water discharge unit for discharging a jet on the sole, and the first water discharge unit And a water discharge drive unit for discharging water from the second water discharge unit, a control unit for controlling the drive unit and changing the state of the jet discharged from the first water discharge unit and the second water discharge unit, The control unit enables the foot to bend by discharging water to the sole of the foot, and the first water discharging unit and the second water discharging unit are ankle joint and knee joint by the jet. And the wall surface height that allows all of the hip joints to bend, and The water discharge portion and the second water discharge portion are approximately spaced apart from each other by the shoulder width of the user, and the water discharge drive portion has a sufficient water discharge amount capable of bending all of the ankle joint, knee joint and hip joint. There is provided a bathtub apparatus characterized in that water can be discharged.

  ADVANTAGE OF THE INVENTION According to this invention, the bathtub apparatus which can make a bather exercise continuously can be implement | achieved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic cross-sectional view illustrating a bathtub device according to this embodiment.

  The bathtub device 1 is provided with a bathtub 2. The shape of the bathtub 2 is, for example, a substantially rectangular parallelepiped shape. And the inner surface of the one end part of a longitudinal direction becomes the 1st bathtub wall surface 2a which the bather M hold | maintains a bathing posture and can be backrested by the bather's back m1. Moreover, in the bathtub longitudinal direction, the 2nd bathtub wall surface 2b is provided facing the 1st bathtub wall surface 2a, and is a wall surface which the bather's M sole m2 contacts. The first bathtub wall surface 2a and the second bathtub wall surface 2b are in contact with the bathtub bottom surface 2c.

  The length in the longitudinal direction of the bathtub 2, that is, the length between the second bathtub wall surface 2 b and the first bathtub wall surface 2 a in the bathtub 2 is when the bather M having a standard physique takes a bathing posture. When the back m1 is applied to the first bathtub wall surface 2a of the bathtub 2 and the sole m2 is opposed to the second bathtub wall surface 2b, the length is such that the water discharger 3 can be covered with the sole m2. It is. Moreover, in a collar part, it is made to contact the bathtub bottom face 2c of the bathtub 2. FIG.

  On the second bathtub wall surface 2 b of the bathtub 2, a first leg discharging part 31 for the left leg and a second discharging part 32 for the right leg (hereinafter generically referred to as spouting a jet to the left foot m2 of the bather M). And also referred to as “water discharge part 3”).

  The water discharger 3 is connected to a drive unit 4 that enables water to be alternately discharged to both legs centered on the sole m2 of the bather M. The direction of the jet is a direction from the second bathtub wall surface 2b toward the first bathtub wall surface 2a. The pair of water dischargers 3 are arranged in the horizontal direction, and are disposed at a target position with respect to a center line extending in the vertical direction on the second bathtub wall surface 2b, for example.

  In FIG. 1, for convenience of illustration, the first water discharger 31 and the second water discharger 32 are drawn so as to be shifted from each other, but actually, the first water discharger as illustrated in FIG. 2. The part 31 and the second water discharger 32 are arranged at the same height h, and are arranged at an interval S between the first water discharger 31 and the second water discharger 32. The interval S is about the shoulder width. Here, “separated by about the shoulder width” means a toe interval when the standing posture is naturally maintained. The same applies to other cross-sectional views described later.

  The drive unit 4 is a device that includes a pump and a switching valve (not shown). The suction port 4 s of the drive unit 4 is communicated with the inside of the bathtub 2. Thereby, the drive part 4 draws water out of the bathtub 2, and produces | generates a water flow.

  Furthermore, the drive unit 4 provided in the bathtub device 1 can adjust the amount of water flow from the “first jet state” in which the foot is not bent than the water discharge unit 3 to the “second jet state” in which the foot is bent. At that time, the water amount adjustment of the water flow by the drive unit 4 is performed by control from the control unit 5 connected to the drive unit 4.

  Next, the operation of this embodiment will be described with reference to FIGS.

  As shown in FIG. 1, in a state where water (hot water) W is put in the bathtub 2, the bather M enters the bathtub 2 and takes a bathing posture. That is, the bather M brings the buttocks into contact with the bathtub bottom surface 2c of the bathtub 2, brings the back m1 into contact with the first bathtub wall surface 2a of the bathtub 2, and makes the sole m2 face the second bathtub wall surface 2b. And the bather M makes the sole m2 contact | abut so that the 1st water discharging part 31 and the 2nd water discharging part 32 may be covered with both soles m2. At that time, an initial posture is taken in which the water flow discharged from the water discharger 3 is captured by the sole m2.

  The bather M is in a relaxed state when the bather M receives the jet at the sole m2, so that the bather M is in a relaxed state, but the legs (sole) In order to resist buoyancy at the buttocks and trunk (back), the muscle groups around each support point perform micromuscular activity. However, since the activities of these muscle groups are minute and performed unconsciously, the bather can easily hold the above-described bathing posture as in the case of normal bathing. Furthermore, the bather M is disturbed by the buoyancy action applied to the bather himself, and the bather performs a compensation operation to unconsciously work the muscles of the whole body to stabilize the posture. Muscles are active when doing.

  FIG. 3 is a schematic plan view illustrating the operation of the bathtub device 1 according to this embodiment, and shows a case where water flows alternately from the first water discharger 31 and the second water discharger 32. First, the drive part 4 and the control part 5 are operated. Thereby, the drive part 4 draws up the water in the bathtub 2 from the inlet 4s, and produces | generates a water flow. The amount of water in the jet generated by the drive unit 4 is adjusted by the drive unit 4 in response to a command from the control unit 5. The control unit 5 adjusts the amount of water from the “first jet state in which the foot is not bent” to the “second jet state in which the foot is bent” from the state of the jet discharged from the water discharging unit 3.

  And the control part 5 controls the drive part 4 to discharge a jet from the 1st water discharging part 31 and the 2nd water discharging part 32 right and left. The left and right alternate water discharge is discharged from the first water discharge section 31 in the second jet state at a certain t1 time, and at time t2, the first water discharge section 31 discharges water in the first jet state, for t3 hours. The water is discharged in the second jet state in the same manner at t1. On the other hand, in the 2nd water discharge part 32, it discharges in a 1st jet state in time t1, and becomes a 2nd jet state in time t2. And in t3 time, it discharges in a 1st jet state like t1 time. That is, the 1st and 2nd water discharging part 3 will repeat the jet state of the 1st and 2nd water discharging alternately.

  With reference to FIG. 4, changes in the posture of the bather when the jets discharged from the water discharge unit 3 are “a first jet state where the foot is not bent” and “a second jet state where the foot is bent” will be described. FIG. 4A shows that when the jet spouted from the spout unit 3 is a “first jet state in which the foot is not bent”, the legs, the knee joint, and the hip joint of the bather M are extended. Indicates the state. FIG. 4B shows that when the jet spouted from the spout unit 3 is a “second jet state that bends the foot”, the legs, the knee joint, and the hip joint of the bather are bent. Indicates the state.

  When the second jet state is reached, the leg joint, knee joint and hip joint of the bather M's leg are bent and the foot is separated from the second bathtub wall surface 2b toward the first bathtub wall surface 2a. Move. And when moving to a 1st jet state, the leg part of the bather M who was bending is extended by an ankle joint, a knee joint, and a hip joint, and a foot part moves toward the 2nd bathtub wall surface 2b.

  As mentioned above, the 1st water discharging part 31 and the 2nd water discharging part 32 which are arrange | positioned on the right and left sole alternately turn the right and left leg part of the bather M alternately by discharging the 1st and 2nd water discharging state. It is possible to bend and stretch.

  The change in the jet state in which water is alternately discharged from the first water discharge unit 31 and the second water discharge unit 32 is performed by a switching valve included in the drive unit 4. The flow path opening area of the switching valve connected to the first water discharger 31 decreases, the amount of water discharged decreases, and the flow path opening area of the switching valve connected to the other second water discharger 32 increases. As the amount of water increases. These are because the switching valve is switched by a switching command from the control unit 5 to the driving unit 4, so that one of the first water discharging unit 31 and the second water discharging unit 32 is in the first water discharging state, and the other is the first water discharging state. It becomes the second water discharge state. However, it is realized by arranging two pumps in the drive unit 4 and switching the rotation speeds of the two pumps connected to the first water discharge unit 31 and the second water discharge unit 32 according to a control command from the control unit 5. You can also

  For example, the water discharge time t1 to t4 of the jet shown in FIG. 3 is set to about 2 seconds. However, when training the balance ability, t1 to t4 are preferably set to about 3 to 6 seconds. In order to make the walking operation closer, t1 to t4 may be set to about 1 second.

  Furthermore, since the second jet state that creates the bent state generates a flow field so as to wrap the foot, force acts so that the foot does not come off the jet during bending and stretching movements. The same phenomenon is a phenomenon in which the ping-pong ball stays at the center of the jet when it is placed on the fountain. As a result, the bather can bend and stretch the legs efficiently by the jet.

  Accordingly, the first water discharger 31 and the second water discharger 32 alternately change the jets discharged from each of the first jet state and the second jet state and bend the right and left leg portions of the bather M. Extend. And the foot part of the bather M will reciprocate alternately in the translation direction between the 2nd bathtub wall surface 2b and the 1st bathtub wall surface 2a. As a result, the alternate bending and stretching movements of the left and right legs are movements similar to the movements of the left and right legs, such as a walking movement. Therefore, the apparatus in one embodiment of the present invention allows a bather to perform a bathing walking exercise that simulates a walking motion in a bath.

  Here, with reference to FIGS. 5A and 5B, the muscle activity caused by the passive bending / extending movement will be described. FIG. 5A is a diagram exemplifying muscle groups that are activated by the passive movement caused by the water flow, and shows the positions of the muscle groups shown in FIG. FIG. 5 (b) shows the amount of muscle activity on the vertical axis and time on the horizontal axis, indicating that different muscles in the leg are active depending on the water discharge state. M4 represents hamstrings and M5 represents anterior tibial muscle. When water is discharged in the second jet state at the time S1, the anterior tibial muscle M5 starts to be activated from the bending of the leg. This result means that muscle activity is occurring in a state in which the foot is separated from the second bathtub wall surface 2b and is moving toward the first bathtub wall surface 2a.

  Then, in the next S2 time, the second jet state shifts to the first jet state. Thereby, the foot part of the bather M moves to the second bathtub wall surface 2b side, and the foot part comes into contact with the water discharge part 3 and the second bathtub wall surface 2b in S3 time. FIG. 5B shows that the hamstrings (biceps femoris, etc.) M4 are activated when the foot of the bather M abuts against the second bathtub wall surface 2b. Thus, the bending and stretching movements of the legs that occur with the jet flow enhance the exercise effect by using different muscle groups.

  The anterior tibial muscle M5 illustrated in FIG. 5 is a muscle provided in the lower leg in a human body segment. The function of the anterior tibial muscle M5 is known as a muscle that works for clearance between the ground and the foot during walking. Therefore, the exercise that activates the anterior tibial muscle M5 means an exercise that contributes to prevention of falls.

  Similarly, the hamstring M4 illustrated in FIG. 5 is a muscle group provided in a thigh in a human body segment. The hamstring M4 is a muscle group composed of the biceps femoris, the semimembranous muscle, the half tendon-like muscle, and the greater adductor muscle. The function of the biceps femoris is known mainly as a muscle that generates kicking force and propulsive force during walking. Therefore, the exercise | movement which stimulates the hamstring M4 means the exercise | movement which can contribute to the maintenance of a walking speed and the improvement of a walking function.

  The amount of water discharged from the water discharger 3 in order to bend the foot of the bather M is when the bather M brings the back m1 into contact with the first bathtub wall surface 2a and the sole m2 faces the water discharger 3. Furthermore, it is the quantity which can bend | curve the bather's M ankle joint, a knee joint, and a hip joint simultaneously, for example, is 80-300 liter / min. In addition, when the magnitude | size of a water flow is less than 80 liter / min, a bather's sole m2 may not leave | separate from the water discharge part 3, and when it exceeds 300 liter / min, water may overflow from the bathtub 2. is there.

  When the amount of water discharged exceeds 110 liters / minute, the leg movement distance becomes 140 mm or more due to the pressure of the jet of water discharged, and it is confirmed that the user feels a sense of movement by bending and stretching movements due to the water flow. Has been. In addition, it has been confirmed that, when the number of monitor people exceeds 35 and 110 liters / minute is exceeded, the feet move 140 mm or more due to water discharge and feel a sense of movement.

  Furthermore, in order to obtain a high exercise effect that is effective in bending and stretching exercises, it is better to exercise with a water flow of about 150 liters / minute. More preferably, exercise by a water flow of about 180 liters / minute is effective. In addition, the magnitude | size of this water flow is considerably larger than the magnitude | size of the water flow ejected for massages in the circulation type bathtub intended for general household bathtubs. In a general massage blow, the amount of water discharged from one water outlet is about 20 liters / minute. Even in the strong strength of the massage blow, the amount of water is at most about 40 liters / minute.

  As described above, by increasing the flow rate of the jet, the force for pressing the sole is increased and the movable range of the bending / extending motion is widened. As the jet increases, the sensory organs provided on the soles and the tendon organs provided on the legs are more effectively stimulated, and the function that works for walking can be effectively promoted.

  Moreover, it is preferable to use the hot water temperature discharged in a 36-41 degreeC band. For example, at 36 to 38 ° C. when the temperature is close to body temperature and the heat load is low, the amount of water bending is increased by increasing the amount of water discharged and increasing the amount of rotation of bending and stretching, or by increasing the period of water discharge. By increasing the exercise intensity, it becomes possible to provide an effective exercise to the bather.

  On the other hand, when seeking sufficient exercise in a relatively short time, set the hot water temperature higher (for example, 39-41 ° C.), and the synergistic effect of the heat and the exercise effect, compared to when the hot water temperature is set lower, Energy is consumed in a short time, and effective exercise can be performed in a short time.

  The effect of this embodiment will be described. Thus, according to this embodiment, the bather M can be exercised. This movement is a passive movement that is given externally. When taking a bathing posture in a general bathtub, in fact, the bathing posture that the user can take unconsciously causes minute muscle activity in order to maintain the posture against buoyancy. The bather receives the jet flow alternately from the first water discharge section 31 and the second water discharge section 32 in a state where the minute muscle activity is induced. As a result, the bather M performs a bathing walking exercise by a jet. And the muscle with which the trunk part which supports a leg muscle group and a leg part is equipped can be activated.

  Furthermore, the balance of the bathing posture of the bather M is disturbed by the jet of water discharged from the water discharger 3 and the action of buoyancy applied to the bather himself. On the other hand, the bather performs a compensation operation to unconsciously work the muscles of the whole body to stabilize the posture. This also makes it possible to exercise the whole body. For this reason, there are few parts which depend on the willpower of a bather, and it becomes possible to provide the exercise | movement which is easy to last long by the apparatus in a present Example. In addition, since this exercise can be performed while taking a bathing posture, it is easy to shift from normal bathing to exercise, and it is an exercise that can be performed without difficulty in lifestyle habits. As a result, it is easy to continue exercise.

  35 people experienced the above movement. As a result, bathing walking during bathing is carried out comfortably by the water flow from the bathing posture, if you continue bathing walking you will feel a feeling of exercise, muscle use, and your feet will be warm after leaving the bath, It has been confirmed that the experience is experiencing the effects of exercise, such as feeling more exercise than jogging. Furthermore, I felt that the sweating action was promoted in less than 5 minutes, and I also felt that it was suitable for the diet effect and would be a metabolic measure.

  Furthermore, according to the present embodiment, since the jet of water is alternately discharged from the first water discharge unit 31 for the left leg and the second water discharge unit 32 for the right leg to the left and right of the bather, In addition to bending and stretching movements of the part, it will cause a swivel movement around the pelvis. As a result, it has been confirmed that in addition to the exercise effect on the muscle groups around the legs, the exercise effect on the rectus abdominis, abdominal oblique muscles, the back muscle group, and the like can be obtained. In this way, by performing the above-described exercise in the bathtub, it becomes an exercise not only for the legs but also for a wide range of the body, and the bather can obtain an effective exercise.

  Furthermore, according to this embodiment, the bather has different sensations of movement obtained from bending and stretching exercises according to the amount of water discharged from the first water discharger 31 and the second water discharger 32 arranged on the soles of both feet. The solid line L shown in FIG. 6 represents the relationship between the distance that the leg moves away from the second bathtub wall surface by the jet and the flow rate of the discharged water when the bather has bent and stretched by the jet from the spout 3. ing.

  As shown by the solid line L, there is a correlation between the movement distance of the foot and the flow rate of the water discharge, and the leg movement amount increases as the water discharge amount increases. The movement distance of the foot part is separated from the wall surface of the second bathtub from about 80 liters / minute, so that the movement of the foot part is started and the bending and stretching movement can be performed. In order for the bather to perform more effective exercise, the amount of water discharged should be about 110 liters / minute.

  In this embodiment, the moving distance of the foot is about 140 mm. In order to obtain a more effective exercise, the bather selects a water discharge amount of about 180 liters / minute, and in order to obtain a more effective exercise, the amount of water is about 200 liters / minute. May be adjusted. Experiments have shown that the distance of movement of the leg at that time is about 250 mm to 300 mm.

  In addition, the height of the 1st water discharging part 3 and the 2nd water discharging part 32 becomes predetermined height h from the bathtub bottom face 2c so that it may illustrate in FIG. At this time, the foot of the bather M is placed at the same height as the water discharger 3 disposed at the predetermined height h. At this time, the bather M is in a posture in which the range of motion of the joint can be widened by holding the foot at a height h from the bottom surface 2c of the bathtub. That is, it is possible to increase the amount of movement of the bending / extending motion caused by the jet. Furthermore, it becomes easier to direct the sole m2 vertically with respect to the jet flow discharged from the water discharge section 3, and the amount of movement of the bending and stretching movement is increased from the point of force transmission of the injection force received from the jet flow.

  On the other hand, the human joint movement angle is limited by the musculoskeletal. In the case of ankle joints, the vertical axis to the non-bone is the basic axis, with 45 degrees bent and 20 degrees extended. The knee joint is bent 130 degrees and extended 0 degrees with the femur as the basic axis. And it is widely known in the field of physiology that the hip joint is 125 degrees in bending and 15 degrees in extension with a line parallel to the trunk as a basic axis.

  FIG. 5 shows a result of calculating a predetermined height H of the water discharger 3 that can efficiently receive a jet at the sole of the musculoskeletal range, that is, can flex and extend while fixing the ankle joint perpendicular to the jet. An example is shown in FIG. From FIG. 7, the predetermined height h1 for successfully receiving the jet is 200 mm. Further, when it is desired to take a wider movement amount, it is desirable to set the distance to 300 mm as in the predetermined height h2.

  For example, the predetermined height H and interval S of the first water discharger 31 and the second water discharger 32, and the water discharge direction angle may be installed in a substantially horizontal direction to discharge water. As a result, when the left and right legs are bent and extended by the jet, it is possible to actively move the movable range of the hip joint, and a high exercise effect can be expected by stimulating muscle groups around the hip joint that are important for the walking function.

  In addition to the predetermined height H and interval S of the first water discharger 31 and the second water discharger 32, the water discharge direction angle may be set higher than the substantially horizontal direction to discharge water as illustrated in FIG. . In the present embodiment, the upward water discharge angle ΘU is 5 degrees. As a result, when the left and right legs are bent and stretched by the jet, it is possible to take a longer section for receiving the jet perpendicular to the sole than to discharge water in a substantially horizontal direction, thereby widening the movable range of the knee joint and the hip joint. It becomes possible. As a result, when the left and right legs are bent and stretched by the jet, the movable range of the knee joint and the hip joint can be actively moved widely, and the muscles around the hip joint that generate the kicking force during walking are stimulated. At the same time, it is expected that the muscles around the knee joint that work to reduce the impact force during walking will be trained more efficiently.

  Further, in addition to the predetermined height H and interval S of the first water discharger 31 and the second water discharger 32, it is also possible to discharge the jet toward the bathtub side wall as illustrated in FIG. At this time, the water discharge angle Θw to the bathtub side wall 2d is 5 degrees. Accordingly, the bather M can widely perform adduction and abduction movements in addition to the bending and stretching movements of the left and right legs. As a result, it is possible to train muscle groups that work for adduction and abduction around the hip joint, which is usually difficult to train, and can effectively exercise not only the walking function but also the balance function. .

  As illustrated in FIG. 2, the interval S between the first water discharger 31 and the second water discharger 32 is approximately the shoulder width of the user. As shown in FIG. 10A, the shoulder width-separation S1 is the distance between the thumb and mother ball positions S3 when the legs are opened and held at the buttocks interval S2 while maintaining the shoulder width interval S1 (FIG. 10). (B)). The shoulder width interval S1 and the thumb and maternal and child ball position intervals S3 are 200 to 240 mm in general adults. Therefore, by setting the water discharge portion 3 interval W to the shoulder width interval S1 that we define, the user M can perform alternate bending and stretching exercises on the left and right legs while maintaining a natural foot width, and a comfortable exercise Can be provided.

  In this specific example, in a state where water (hot water) W is stored in the bathtub 2, the bather M enters the bathtub 2 and takes a bathing posture. And the execution time of the motion of the bathtub apparatus 1 and the period of bending / extending motion are arbitrarily set by operating the operation button (not shown) of the control part 4. FIG. Note that a plurality of types of exercise modes may be set in the control unit 5 in advance, and the bather may select a favorite exercise mode.

  For example, when the bather selects a mode with a high exercise load, the controller 5 causes the drive unit 4 to adjust the amount of water from the first jet state to the second jet state in a relatively short cycle. Output. Alternatively, the exercise time and the exercise cycle may be automatically set by a timer. For example, when the set temperature of hot water is 39 ° C., the timer sets one set of exercise time to 10 minutes. Thus, according to this example, the exercise load can be arbitrarily set according to the preference of the bather.

It is typical sectional drawing which illustrates the bathtub apparatus which concerns on embodiment of this invention. It is typical sectional drawing which illustrates the bathtub apparatus which concerns on embodiment of this invention. It is a typical top view which illustrates operation of a bathtub device concerning an embodiment of the present invention. It is a figure which illustrates the state which has extended and bent the leg part of the user concerning this embodiment of the present invention. It is a figure explaining the activity of the muscle raised by the bathtub apparatus concerning the embodiment of the present invention. It is a figure which illustrates the relationship between the flow volume of the jet flow raise | generated by the bathtub apparatus concerning embodiment of this invention, and the moving amount | distance of a leg part. It is a figure which illustrates the relationship between the moving amount of the foot | leg raised by the bathtub apparatus which concerns on embodiment of this invention, and water discharge height. It is a typical top view which illustrates operation of a bathtub device concerning an embodiment of the present invention. It is a typical top view which illustrates operation of a bathtub device concerning an embodiment of the present invention. It is a figure explaining the body width referred in defining the water discharging part space | interval of the bathtub apparatus which concerns on embodiment of this invention.

Explanation of symbols

1 11 12 Bath apparatus, 2 bathtub, 2a first bathtub wall surface, 2b second bathtub wall surface, 2c bathtub bottom surface, 2d bathtub wall surface, 3 water discharge section, 31 first water discharge section, 32 second water discharge section, 4 Drive unit, 4s suction port, 5 control unit, 60 bathroom unit, 61 waterproof pan, 62 wall panel, M bather, m1 back, m2 foot, W water, S S1 S2 shoulder width separated, h water discharge part predetermined height, ΘU Upper water discharge angle, Θw Bathtub side wall angle

Claims (4)

A bathtub,
A first bathtub wall provided in the bathtub and capable of being backrested;
A second bathtub wall provided opposite to the bottom of the bathtub and the first bathtub wall when the back is in contact with the first wall;
Provided on the wall surface of the second bathtub, and a first water discharger and a second water discharger for discharging a jet on the sole;
A water discharge driving unit for discharging water from the first water discharge unit and the second water discharge unit;
A controller that controls the drive unit and changes a state of a jet discharged from the first water discharge unit and the second water discharge unit,
The control unit allows the foot to bend by discharging water to the sole of the jet,
The first water discharger and the second water discharger are disposed at a wall height that allows bending of all of the ankle joint, knee joint and hip joint by the jet, and the first water discharger and The second water discharge portion is spaced approximately the shoulder width of the user,
The said water discharge drive part is a bathtub apparatus characterized by enabling sufficient water discharge to be able to bend all of an ankle joint, a knee joint, and a hip joint on a sole. The first water discharger and the second water discharger are arranged in a horizontal direction,
The bathtub apparatus according to claim 1, wherein the first water discharger and the second water discharger discharge a jet in a substantially horizontal direction. The first water discharger and the second water discharger are arranged in a horizontal direction,
The bathtub device according to claim 1, wherein the first water discharger and the second water discharger discharge water jets upward from a substantially horizontal direction. The first water discharger and the second water discharger are arranged in a horizontal direction,
The bathtub device according to claim 1, wherein the first water discharge portion and the second water discharge portion discharge water jets from the substantially horizontal direction toward the bathtub longitudinal direction.

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