JP4482498B2 - Water jetting device - Google Patents

Description

  The present invention relates to a water jet apparatus that can massage a body by a water flow while bathing.

  Conventionally, a water flow (bath water or bubble bath water) is jetted into a bathtub so as to collide with a person bathing in the bathtub and massaged. For example, Patent Document 1 is known as such a conventional example.

  In the conventional example shown in this Patent Document 1, a foot spray nozzle for spraying a water flow onto the bather's sole and performing a hydromassage on the sole, and a bather's lower limb, There is provided a shin jet nozzle for jetting a water current to the shin to perform a water massage of the shin.

  This massage massages the soles and calves. However, the hydromassage of the soles and calves did not provide a truly sufficient effect for eliminating foot fatigue or reducing swelling.

  Therefore, as a result of the inventor's research, it is effective to massage the acupuncture points "Terumi" under the ankle and the acupuncture points "Shouzan" and "San Yin" on the calves for the fatigue and swelling of the feet. However, in the past, there was no water massage by jetting a water flow under the ankle.

  Further, in the conventional example shown in the above-mentioned Patent Document 1, the direction of water flow ejected from the sole spray nozzle and the direction of water flow ejected from the calf nozzle are constant, and the bathing posture of the bather, body shape, etc. It was difficult to apply the water flow to the target site accurately, and an effective water massage was not possible in this respect.

  Furthermore, conventionally, the flow velocity of the water flow ejected from the sole ejection nozzle and the calf ejection nozzle is constant, and the water flow is simultaneously ejected from the sole ejection nozzle and the calf ejection nozzle and applied to the sole and calf. The problem is that you cannot get a continuous massage feeling in different parts, such as one part massage being done continuously from another part, and you can't get a squeaky feeling like massaged by a masseur was there.

Also, in the past, the nozzle has only one outlet, and two foot spray nozzles are provided for hydromassage of the soles of both feet and the calves of both legs, respectively. However, there is a problem that the number of nozzles provided in the bathtub is too large.
JP 2000-126057 A

  The present invention has been made in view of the above points. The object of the present invention is to provide a pot called “Terumi” under the ankles of both feet of a bather who takes a bath in a bathtub and a calf of both legs. You can massage the acupuncture points “Seizan” and “San Yin Ko” in this area to effectively relieve foot fatigue and reduce swelling while taking a bath. Also, the bather's bathing posture, body shape, etc. Depending on the inner ankle, it can be adjusted so that the water flow is spouted to the optimal position of the calf, and the continuous feeling of the massage by the water flow is obtained, and the feeling of squeezing up as if massaged by a masseur is obtained, even less It is providing the water-jet apparatus which can perform an effective water-massage with a jet nozzle.

In order to solve the above-described problems, the water jet apparatus of the present invention is an inner ankle spray nozzle for jetting a water current to the bathtub 1 under the ankle of the bather M and performing a hydromassage under the inner ankle. 2 and a calf nozzle 3 for jetting a water current to the calf of the lower limb of the bather M to perform a hydromassage of the calf , Branched into a T-shape at the middle part in the left-right direction near the end, or the middle part in the left-right direction of the side wall 8b on the foot placement portion side 6 of the bathtub 1, or opened in the left-right direction, or V-shaped The above-described inner ankle spray nozzle 2 is constituted by a branch nozzle 5 having two jet outlets 4 that are branched in a shape and opened in a diagonal direction .

By adopting such a configuration, while taking a bath, the water flow squirted from the inner ankle-injection jet nozzle 2, and the water flow is jetted under the ankle of the foot and the “Terumi” acupuncture point under the ankle of the foot Hydromassage can be performed, and the water flow from the jet nozzle 3 for the shin can be jetted to the shin of the lower limb to hydromass the acupuncture points “Shiyama” and “San Yin Ko” in the shin. In addition, it is possible to relieve foot fatigue and reduce swelling by reliably hydromassing the “Terumi” acupuncture point under the ankle of the foot, which is a point for reducing swelling, and the “Shouzan” and “San Yin” points on the calf. Effectively. In particular, a T-shape is formed on the intermediate portion in the left-right direction in the vicinity of the end portion of the foot tip arrangement portion 6 on the bottom surface portion of the bathtub 1 or the intermediate portion in the left-right direction of the side wall portion 8 b on the foot tip arrangement portion side 6 of the bathtub 1. The inner ankle spray nozzle 2 is constituted by the branch nozzle 5 having two outlets 4 which are branched in the left and right direction and opened in the left-right direction or in the V shape and opened in the left and right diagonal directions. One branch nozzle 5 is provided in an intermediate portion in the left-right direction in the vicinity of the end portion of the foottip arrangement portion 6 on the bottom surface portion 1 or in an intermediate portion in the left-right direction of the side wall portion 8b on the foottip arrangement portion side 6 of the bathtub 1. By just spraying water from the two spouts 4 provided in one branch nozzle 5 in the left-right direction or the left-right slant direction, the water flow can be applied to the acupuncture point “Terumi” under the ankles of both feet. , This will increase the distance between the inner surfaces of both feet in the bathing posture Even if you don't open it unnaturally, you can effectively hydromass the acupuncture point "Terumi" under the ankles of both feet, and also for the inner ankle for hydromassage under each ankle of both feet as described above Since only one ejection nozzle 2 is required, the number of members is reduced.

  Further, it is preferable that the direction of jetting of the water flow from the inner ankle spray nozzle 2 and the direction of jetting of the water flow from the expansion nozzle 3 are variable.

  By adopting such a configuration, the direction of the water flow from the inner ankle spray nozzle 2 and the direction of the water flow from the calf jet nozzle 3 are changed according to the bathing posture of the bather, the body shape of the bather, and the like. It is possible to change the water flow accurately to the target part (that is, the point position of “Terumi” under the inner ankle, the point of “Shizan” and “San-in”) of the calf, and more effective. In addition, water massage can effectively eliminate foot fatigue and swelling.

  Moreover, it is preferable that the expansion nozzle 3 for the shin is constituted by a branch nozzle 5 provided with two injection ports 4 for diverting the water flow to the expansion limbs of both lower limbs.

  With such a configuration, each of the calves of both lower limbs can be effectively hydromassed by the water flow ejected from the two jet outlets 4 provided in one branch nozzle 5, and thus each calf of both lower limbs can be massaged. The number of members is reduced because only one expansion nozzle for calves 3 for hydromassage is required.

  Further, the amount of water ejected from the inner ankle spray nozzle 2 and the calf ejector nozzle 3 gradually increases from a small amount of water, and when the amount of ejected water reaches the maximum amount of water, the amount of water gradually decreases, and the minimum amount of water or the stop of the ejection is stopped. It is controlled to repeat the operation of gradually increasing the amount of water again after it reaches, and the amount of water ejected from one of the inner ankle spray nozzle 2 to the calf nozzle 3 gradually increases after reaching the maximum water amount. When starting to decrease, it is preferable that control be performed so that the amount of water gradually increases from the start of ejection from the other.

  As described above, the amount of water ejected from the inner ankle spray nozzle 2 and the calf ejection nozzle 3 gradually increases from a small amount of water, and when the amount of water ejected reaches the maximum amount of water, the amount of water gradually decreases, and the minimum amount of water or Since it is controlled to repeat the operation that the water volume gradually increases again after the eruption stops, the pot point called “Terumi” below the inner ankle, the “Shizan” and “San-yoko” pots Each of the positions can be obtained by a hydromassage that feels like a masseuse squeezes up by hand, and the amount of water ejected from one of the inner ankle spray nozzle 2 to the calf nozzle 3 passes through the maximum water volume. When it starts to decrease gradually, it is controlled so that the amount of water gradually increases after starting to erupt from the other side. (One cycle of jetting water flow) and the period of massaging the massage of the calf (one cycle of jetting water flow) are alternately performed while shifting the cycle, giving a continuous feeling of massage. The result is a more effective and continuous hydromassage of the “Terumi” acupuncture points under the ankles of the foot and the “Shoyama” and “San Yin” points on the calves to relieve foot fatigue and reduce swelling. Can be effectively achieved.

  In the present invention, hydromassage a point called `` Terumi '' under the ankle of the person who is bathing in the bathtub, and `` Chengshan '', `` It is possible to effectively relieve foot fatigue and reduce swelling by hydromassaging acupuncture points called "San Yin Ko".

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  1 to 3 show the embodiments of the present invention. As shown in FIGS. 1 to 3, the bathtub 1 has a foot tip placement portion 6 in which one end portion is located on the foot tip side of the bather M, and a head placement portion 7 in which the other end portion is located on the head side of the bather M. Here, in the present invention, the above-described foot tip placement portion 6 side is defined as the rear, the head placement portion 7 side is defined as the front, and the direction connecting the foot tip placement portion 6 and the head placement portion 7 is defined. Is defined as the front-rear direction (X direction). In plan view, a direction orthogonal to the front-rear direction, which is a direction connecting the foot placement part 6 and the head placement part 7, is defined as the left-right direction (Y direction), and the bathtub 1 is substantially rectangular in plan view. Alternatively, in a substantially oval shape in plan view, the direction parallel to the long side of the bathtub 1 is the front-rear direction, and the direction parallel to the short side is the left-right direction.

  The bather M generally positions the toe side on the foot arrangement part 6 side which is one end side in the bathtub 1 and positions the head side on the head arrangement part 7 side which is the other end side. When taking a bathing posture in the bathtub 1, as shown in FIGS. 1 to 3, the buttock of the bather M is placed on the front end of the bottom portion 9 of the bathtub 1 (the end on the head arrangement portion 7 side). ) Place the back on the side of the head placement part 7 side (front side) side wall part 8a, or place it with a slight gap facing it, and gently fold the lower limbs into a square shape. The bathing posture is such that the tip is positioned below the side wall portion 8b on the foot tip placement portion 6 side (rear side) or near the end portion on the foot tip placement portion 6 side of the bottom surface portion 9. In this case, if both the heels are naturally along both sides of the body, the heels are placed along the thighs of both lower limbs from both sides of the body torso.

  Here, the side wall 8a on the head arrangement portion 7 side (front side) is such that the bather M takes a general bathing posture as described above, and the buttock of the bather M is the front end of the bottom surface portion 9 of the bathtub 1. When placed on a portion closer to (the end portion on the head placement portion 7 side), it is gently inclined as compared with other side wall portions so that the back can be placed.

  When bathing in a general bathing posture as described above, the bottom surface portion 9 is a portion near the front end portion serving as a heel placing portion 10, and between the rear end portion of the bottom surface portion 9 and the buttock placing portion 10. Above the portion is a lower limb placement section 11 where the bather's lower limb is located.

  In the bathtub 1, a water flow is jetted to the lower ankle of the bather M, and an inner ankle spray nozzle 2 for performing a massage under the inner ankle to perform a water massage under the inner ankle, and a water flow is jetted to the calf of the lower limb of the bather M There is provided a bulge jet nozzle 3 for performing hydromassage of the shin. The inner ankle spray nozzle 2 is provided in the vicinity of the end of the bottom surface portion 9 of the bathtub 1 on the foot tip placement portion 6 side as shown in FIGS. 1 and 3, or the foot tip placement portion 6 as shown in FIG. It is provided under the side wall portion 8b on the side. Moreover, the blow nozzle 3 is provided in the vicinity of the end of the bottom surface portion 9 of the bathtub 1 on the foot placement portion 6 side as shown in FIGS. 1 and 3, or the left and right side wall portions 8b as shown in FIG. It is provided in the lower part of the foot tip mounting part 6 side.

  Further, the side wall 8 of the bathtub 1 is provided with a suction port 12 for sucking the bath water in the bathtub 1, and the suction port 12, the inner ankle spray nozzle 2, and the calf spray nozzle 3 are provided. The circulation water channel 13 is connected in communication. A pump 14 is provided in the middle of the circulation channel 13, and the pump 14 is driven to suck in the bath water in the bathtub 1, so that the outlet 4 of the inner spray nozzle 2 and the above-mentioned expansion nozzle 3 for the calf Each is supplied to the ejection port 4 and ejected from the ejection port 4 into the bathtub 1.

  In the figure, reference numeral 16 denotes a control unit for controlling the driving of the pump 14 and a motor 28 of the electric valve 15 described later.

  Here, as shown in FIGS. 1 to 3, air is sucked into the circulating water channel 13 from the air supply pipe 19 whose tip is the air intake port 17 by the ejector action and mixed in the bath water, and the bubbled bath is discharged from the jet port 4. You may make it spout water.

  The inner ankle spray nozzle 2 is constituted by providing one branch nozzle 5 in the bathtub 1 provided with two outlets 4 for diverting the water flow under each inner ankle of both feet. is there.

  As shown in FIGS. 4 (a) and 4 (b), the branch nozzle 5 is provided with two jet outlets 4 that jet in two directions, and the inside of the main body portion 20 attached to the end of the circulation water channel 13 is provided. The ball portion 23 at the end of the nozzle body 22 is fitted into the receiving portion 21 in a watertight and freely rotatable manner, and the tip end portion of the nozzle body 22 branches in a T shape as shown in FIG. A nozzle that is formed in a horizontal opening in the left-right direction (the ejection direction of the left and right jets 4 is positioned on a substantially straight line), or the tip of the nozzle body 22 as shown in FIG. The part is branched in the shape of a letter V, and each of the nozzles 4 is formed so as to open in a diagonal direction. The nozzle body 22 is rotatable in the directions of arrows A and B in FIG.

  In this way, the branch nozzle 5 is used as the inner ankle spray nozzle 2 at the intermediate portion in the left-right direction near the end portion on the foottip arrangement portion 6 side of the bottom surface portion 9 of the bathtub 1 as shown in FIGS. One branch nozzle 5 is provided, or one branch nozzle 5 is provided in the middle part in the left-right direction at the lower part of the side wall portion 8b on the foottip arrangement portion 6 side of the bathtub 1 as shown in FIG. By spraying water from the two two outlets 4 provided in the inner ankle spray jet nozzle 2 consisting of one branch nozzle 5 located at a position, and applying a water flow to the lower part of the inner ankle of both feet, The water flow massage can be performed by effectively applying a water flow to the acupuncture point “Terumi” under the ankles of both feet.

  Here, since the acupuncture point “Terumi” at the site below the ankles of both feet exists on the inner surface of both feet, the inner ankle spray nozzle 2 needs to be positioned between both feet, but both feet are located at this portion. If two inner ankle spray nozzles 2 are placed in order to squirt the water flow under the ankle, the distance between the two legs becomes unnatural so that the distance between the inner surfaces of both feet is increased in the bathing position. Must open. For this reason, in the present embodiment, as described above, the inner ankle spray nozzle 2 is constituted by the branch nozzle 5, and only one inner ankle spray nozzle 2 is used, and the branch nozzle 5 is provided. It is possible to spray water from the two spouts 4 and apply water to the area under the ankles of both feet, which makes it unnatural between the feet so that the distance between the inner surfaces of both feet is increased in the bathing position. Even if you do not open it, you can effectively hydro-mass under the ankles of both feet. In addition, the number of parts can be reduced.

  The expanse nozzle 3 is used for hydromassaging the acupuncture points “Suisan” and “San Yin” in the expanse by ejecting a water stream from the spout 4 provided on the expanse nozzle 3 toward the calves of both lower limbs. Is. As the blowout nozzle 3 for blowing the water flow to the respective calves of both lower limbs, two bathtubs for one-way jetting 24 provided with one jetting port 4 as shown in FIG. 1 is provided, or one branch nozzle 5 as shown in FIGS. 4A and 4B is provided in the bathtub 1 (in this case, the branch nozzle 5 used as the inner ankle spray nozzle 2). And a separate branch nozzle 5 is provided. Note that the one-way ejection nozzle 24 shown in FIG. 4C has the two ejection ports 4 shown in FIGS. 4A and 4B described above, in which one ejection port 4 is provided in the nozzle body 22. The other structure is the same as the branch nozzle 5 except for the branch nozzle 5.

  Here, in the embodiment of FIG. 1, the branch nozzle 5 as shown in FIG. 4 (a) or (b) is provided in the middle portion in the left-right direction near the end portion of the bottom surface portion 9 of the bathtub 1 on the foottip arrangement portion 6 side. And an inner ankle spray nozzle 2, and the vicinity of the end portion 6 side end portion of the bottom surface portion 9 of the bathtub 1 (a position slightly shifted forward from the arrangement portion of the branch nozzle 5). This is an example in which the unidirectional jet nozzles 24 as shown in FIG.

  Further, in the embodiment of FIG. 2, a branch nozzle 5 as shown in FIG. 4 (a) or (b) is arranged at the intermediate portion in the left-right direction below the side wall portion 8b on the foottip arrangement portion 6 side of the bathtub 1. It is made into the injection nozzle 2 for the inner ankle lower part, and it is shown in the right and left of the edge part vicinity of the foot tip arrangement | positioning part 6 side of the bottom face part 9 of the bathtub 1 (position shifted slightly ahead from the arrangement | positioning part of the said branch nozzle 5). This is an example in which a unidirectional jet nozzle 24 as shown in FIG.

  Further, in the embodiment of FIG. 3, the branch nozzle 5 as shown in FIG. 4 (a) or (b) is arranged in the middle portion in the left-right direction in the vicinity of the end portion of the bottom surface portion 9 of the bathtub 1 on the foot tip arrangement portion 6 side. Thus, the left and right jet nozzles 2 are used as the inner ankle spray nozzle 2, and the left and right sides of the bottom portion 9 of the bathtub 1 near the end portion on the foot tip arrangement portion 6 side (a position slightly shifted forward from the arrangement portion of the branch nozzle 5). This is an example in which one branch nozzle 5 as shown in FIG. 4A or FIG.

  Where the branch nozzle 5 constituting the inner ankle spray nozzle 2 is provided as described above, or which branch nozzle 5 shown in FIG. 4A or 4B is used as the inner ankle spray nozzle 2 Or two unidirectional jet nozzles 24 shown in FIG. 4 (c) are used as the burner nozzle 3 or the branch nozzle 5 shown in FIG. 4 (a) or (b) as the burner nozzle 3 Depending on the shape of the bathtub 1, it is arbitrarily set whether to use one or where to place the blowout nozzle 3.

  As described above, the inner ankle spray nozzle 2 and the calf jet nozzle 3 are provided in the bathtub 1 so that the water stream is ejected from the inner ankle spray nozzle 2 while bathing, and the water stream is flowed under the inner ankle of the foot. It is possible to hydromass the acupuncture point “Terumi” (shown in FIG. 7 (a) showing the acupuncture point of “Terumi”) under the ankle of the foot and A stream of water is sprayed onto the lower limbs of the lower limbs, and the acupuncture points “Shouzan” and “Saninko” (shown in FIG. Relieve fatigue and reduce swelling of feet by reliably hydromassing the acupuncture points “Terumi” under the ankles of the feet, which are the points for reducing fatigue and swelling, and the “Chouyama” and “San Yin” points on the calves Can be effectively planned

  Here, since both the inner ankle spray nozzle 2 and the calf jet nozzle 3 can change the jet direction of the water flow from the jet port 4 by rotating the nozzle body 22, the bathing posture of the bather and the bather's Depending on the body shape and the like, the direction of the water flow from the inner ankle spray nozzle 2 and the direction of the water flow from the calf nozzle 3 are changed to change the target part (ie, “Terumi” under the inner ankle). Can be accurately applied to the acupuncture points, “Chouyama” of the calf, “San Yin”, and more effectively reduce the fatigue of the feet and reduce swelling by more effective hydromassage. it can.

  Moreover, in each embodiment shown in FIG. 1 thru | or FIG. 3, although the motor-operated valve 15 is provided in the middle of the circulation water channel 13, this motor-operated valve 15 has the hole 26 of the valve main body 25 and the valve main body 25 as shown in FIG. The rotary valve body 27 is rotatably fitted to the rotary valve body 27, and the motor 28 is configured to rotate the rotary valve body 27.

  The rotation valve body 27 is provided with a water passage hole 29 having one end opened at an axial end, and the other end of the water passage hole 29 communicates with a valve port 30 provided on a side surface portion of the rotation valve body 27. is doing. Two outflow ports 31 (a first outflow port 31a and a second outflow port 31b) are provided at positions corresponding respectively to a plurality of positions on the rotation trajectory of the valve port 30 on the wall surface of the hole 26 of the valve body 25. is there.

  The valve body 25 is provided with an inflow hole 32 that is always in communication with an opening at one end in the axial direction of the water passage hole 29 of the rotary valve body 27, and the inflow hole 32 is a pipe 33 a that constitutes a part of the circulation water channel 13. Thus, the pump 14 is connected in communication. Further, the portion of the circulation water channel 13 between the valve body 25 and the nozzle body 22 is constituted by a plurality of branch pipes 33b and 33c. In the embodiment, the first outlet 31a and the inner ankle spray nozzle 2 Are connected to each other by a branch pipe 33b, and the second outlet 31b and the blow nozzle 3 are connected to each other by a branch pipe 33c.

  Here, by rotating the rotary valve body 27 with the motor 28 in a state where the pump 14 is turned on, the first flow from the state where water flows only to the first outlet 31a as shown in FIG. After a state of flowing while changing the flow rate ratio to both the outlet port 31a and the second outlet port 31b (FIG. 5B shows a stage where the flow rate ratio is equal), the second flow as shown in FIG. The outlet 4 provided in the inner ankle spray nozzle 2 while changing the flow ratio of the water flowing to the first outlet 31a and the second outlet 31b so that water flows only through the outlet 31b. The water can be sequentially supplied to the jet outlet 4 of the burner jet nozzle 3 while changing the amount of water.

  That is, as shown in FIG. 5A, in a state where water flows only through the inner ankle-lowering jet nozzle 2 (that is, the amount of water ejected from the outlet 4 of the inner ankle-lowering jet nozzle 2 is maximized). When the rotary valve body 27 is rotated as shown in FIG. 5B, the amount of water gradually decreases (that is, the flow velocity becomes slower) as shown in the graph of FIG. Control is performed so that the amount of water gradually increases from the nozzle 3 through the ejection (that is, the flow velocity gradually increases), and further, as shown in FIG. When the amount of water ejected from the nozzle 2 reaches the minimum amount of water or the ejection is stopped, the amount of water ejected from the expansion nozzle 3 is the maximum amount of water. In this state, the rotation valve body 27 further continues to rotate, so that the amount of water ejected from the calf ejection nozzle 3 that has reached the maximum amount of water gradually decreases as shown in FIG. Then, a slow ejection is started again from the inner ankle spray nozzle 2 and the amount of water gradually increases. Such an operation is repeated alternately (see FIG. 6).

  Thus, when the amount of water ejected from the inner ankle spray nozzle 2 and the calf ejection nozzle 3 increases gradually and reaches the maximum water amount, the water amount gradually decreases thereafter, leading to the minimum water amount or ejection stop. Then, by controlling the controller 16 to repeat the operation of starting to erupt again and gradually increasing the amount of water, the acupuncture point “Terumi” under the inner ankle, and “Shizan” of the calf, Water massage gives a feeling of squeezing up as if the masseuse squeezes the acupuncture points with his fingers, with a gentle stream of water hitting the acupuncture point called “San Yin Ko” at first. Can be obtained. Moreover, in this case, when the amount of water ejected from one of the inner ankle spray nozzle 2 to the calf ejection nozzle 3 becomes the maximum water amount and then gradually begins to slow down, the water amount gradually increases from the other through the ejection. Since it is controlled by the control unit 16 as it goes, the cycle of the massaging of the water massage under the inner ankle (one cycle of the jet of water flow) and the cycle of the massaging of the water massage of the calf (one cycle of the jet of the water flow) ) Is performed alternately and continuously, shifting the cycle as shown in FIG. 6, and a continuous feeling of massage is obtained, and “Shozan” is located in the pot called “Terumi” under the ankle of the foot and in the calf. Therefore, it is possible to effectively and continuously massage the acupuncture point “San Yin Ko” to effectively eliminate foot fatigue and swelling.

  In addition, if the rotation speed of the motor 28 for rotating the rotary valve body 27 is set to 2 rpm or more, it is possible to set the squeezing-up cycle (one cycle of water flow jetting) to 30 seconds or less. Yes, this period of 30 seconds or less is the same as that of a general air massager (period of strength).

  In the above-described embodiment, the amount of water ejected from the inner ankle spray nozzle 2 and the calf jet nozzle 3 by supplying water to the inner ankle spray nozzle 2 and the calf jet nozzle 3 via one motor-operated valve 15. By changing the above, a feeling of squeezing up and a continuous feeling are displayed, but a valve for the inner ankle spray nozzle 2 and a valve for the calf jet nozzle 3 are provided separately, and each valve is separately provided. It may be controlled by the control unit 16, and in this case, a point called “Terumi” under the inner ankle which is formed by jetting a water flow from the jet outlet 4 of the lower ankle spray nozzle 2 to the inner ankle of the foot. Or water massage of the acupuncture points “Shouzan” and “San Yin” in the calf, which is performed by ejecting the water stream from the spout 4 of the spout nozzle 3 to the calf of the lower limb, There It is possible to or carried out at the same time.

1 shows an embodiment of the present invention, in which (a) is a side sectional view and (b) is a plan view. Other embodiment same as the above is shown, (a) is a sectional side view, (b) is a plan view. Another embodiment same as the above is shown, (a) is a side sectional view, and (b) is a plan view. (A) is sectional drawing which shows an example of the branch nozzle used for the same as the above, (b) is sectional drawing which shows the other example of the branched nozzle used for the same as the above, (c) is sectional drawing which shows the nozzle for one-way ejection It is. One embodiment of the motor-operated valve used in the above is shown, wherein (a), (b), and (c) are explanatory views showing the rotating state of the rotating valve body, respectively, and (d) is a plan view. It is a graph which shows the relationship between the amount of water ejected from the jet nozzle for inner ankles same as the above, and the amount of water ejected from the jet nozzle for calves. (A) is explanatory drawing which shows the acupoint position called "Terumi" which exists under the ankle of the foot, and (b) is an explanatory drawing which shows the acupuncture positions called "Shouzan" and "San-yoku" existing in the lower limbs. is there.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Spout nozzle under ankle 3 Spout nozzle 4 Spout 5 Branch nozzle M Bather

Claims (4)

An ankle spray nozzle for jetting water under the ankle of the bather's foot and performing massage under the inner ankle, and a water flow on the calf of the lower leg of the bather. A calf nozzle for performing massage, and a laterally intermediate portion in the vicinity of the end portion of the foottip arrangement portion on the bottom surface portion of the bathtub or a side wall portion on the foottip arrangement portion side of the bathtub In the middle part of the left and right direction of the above-mentioned inner ankle by a branch nozzle having two jet outlets branched in a T shape and opened in the left and right direction, or branched in a V shape and opened in the left and right diagonal directions A water jet apparatus comprising an injection nozzle .   2. The water jet device according to claim 1, wherein the jet direction of the water flow from the inner ankle spray nozzle and the jet direction of the water flow from the expansion nozzle are variable. 3. The expansion nozzle for a calf is constituted by a branch nozzle provided with two spouts for diverting a water flow to each calf of both lower limbs. Water jetting device. The amount of water ejected from the inner ankle spray nozzle and the calf ejector nozzle gradually increases from a small amount of water, and when the amount of water ejected reaches the maximum amount of water, the amount of water gradually decreases. When the amount of water ejected from one of the inner ankle spray nozzle or the calf nozzle is gradually reduced through the maximum water amount, the other is controlled. The water jet apparatus according to any one of claims 1 to 3, wherein the water jet apparatus is controlled so that the amount of water gradually increases from the start of jetting.

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