JP2008264283A - Bathtub apparatus with massaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub apparatus with a massaging device, which makes it possible to obtain a massage feeling as if moving on a human body surface while it is kept pressed with a finger. <P>SOLUTION: The bathtub apparatus with the massage device comprises: a bathtub main body for which a bathtub water suction port is formed on a bathtub wall; a pressurizing apparatus for sucking bathtub water from the suction port and pressurizing it; a jet nozzle with a jetting port for jetting the bathtub water sent from the pressurizing apparatus into the bathtub water stored in the bathtub main body; and a posture regulation means provided on the bathtub wall on the side provided with the jet nozzle in the bathtub main body, for regulating the posture of a bather. A flow path between the suction port and the jetting port of the jet nozzle is not connected to a communication port with the atmospheric air, and the jet nozzle jets the jet practically without air bubbles so that a jet collision part to the bather draws the track of moving a prescribed range larger than the thickness of a jet bundle by continuous cyclic movements. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tub device with a massage device that uses a jet spouted into bathtub water.

  2. Description of the Related Art Conventionally, there is a jet nozzle provided on a bathtub wall, and jets are jetted from the nozzle into the bath water. For example, in Patent Documents 1 and 2, from the air supply port, the inside of the nozzle becomes negative pressure at the time of jetting. A device is disclosed in which air is sucked in and mixed with a water flow to jet a bubble-containing jet into the bathtub.

  However, when the human body receives a bubble-containing jet, the boundary between the part that the jet feels and the part that does not collide becomes ambiguous due to the collision of the bubbles at multiple points and the rising of the bubbles due to buoyancy. It was difficult to feel the movement of the water flow clearly. Therefore, the feeling of moving on the surface of the human body while being pressed by a water flow is not received, and a shiatsu massage feeling that moves on the surface of the human body while being pressed by a finger cannot be obtained.

Patent Document 3 discloses a jet generating device that does not mix bubbles, but since the stimulation is weak in a jet without bubbles, hot water from a water heater is mixed with the jet to improve the feeling of stimulation. However, the jet direction of the jet does not change automatically, it jets only in the same direction, the movement of the water flow cannot be felt, and the bather becomes accustomed to the stimulus and tends to get bored.
JP-A-4-61859 Japanese Patent Laid-Open No. 2001-8998 JP 2001-46454 A

  This invention provides the bathtub apparatus with a massage apparatus which can obtain the massage feeling which moves on the human body surface, being pushed with the finger | toe.

  According to one aspect of the present invention, there is provided a tub device with a massage device that uses a jet spouted into the bath water, the bath body having a bath water suction port formed in the bath wall, and the bath water from the suction port. There are provided a pressurizing device for inhaling and pressurizing, a jet nozzle having a spout for ejecting bath water sent from the pressurizing device into bath water stored in the bath main body, and the jet nozzle in the bath main body. And a posture regulating means for regulating the posture of the bather, and the flow path between the suction port and the jet nozzle outlet communicates with the atmosphere communication port. The jet nozzle ejects a jet having substantially no bubbles so as to draw a trajectory in which a jet collision portion with respect to a bather moves in a predetermined range larger than the thickness of the jet flux in a continuous periodic motion. Massage Location bathtub device is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the bathtub apparatus with a massage apparatus which can obtain the massage feeling which moves on the human body surface, being pushed with the finger | toe is provided.

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

FIG. 1 is a schematic plan view illustrating a schematic configuration of a bathtub device with a massage device according to an embodiment of the present invention.
FIG. 2: is the schematic diagram which looked at the bathtub main body from the side direction in the bathtub apparatus with a massage apparatus.

  The bathtub device with a massage device according to the present embodiment is roughly classified into a bathtub body 1 and a massage device including a pump 7 and a jet nozzle 11.

  The bathtub main body 1 has a pair of long side bathtub walls 3a and 3b facing each other substantially in parallel and a pair of short side bathtub walls 4a and 4b facing each other substantially in parallel. A bathtub rim 2 is provided at the upper edge of the bathtub body 1 so as to project outwardly in a flange shape.

  A suction port 5 is formed in the long side bathtub wall 3b. When the pump 7 that is a pressurizing device is driven, the bathtub water (including hot water) stored in the bathtub body 1 is sucked into the flow path 13 through the suction port 5.

  One end of the flow path 13 is connected to the suction port 5, and the other end is connected to the suction port of the pump 7. One end of the flow path 14 is connected to the discharge port of the pump 7, and the other end is connected to the flowing water inlet of the jet nozzle 11. The pump 7 sucks bathtub water from the suction port 5 into the flow path 13, pressurizes the sucked bathtub water, and discharges it to the flow path 14 on the downstream side of the pump 7. The pressurized bathtub water discharged from the pump 7 flows into the flowing water inlet of the jet nozzle 11.

  When not in use, the pump 7 is desirably provided above the suction port 5 in order to drain residual water inside the pump 7. Further, the channel 13 is inclined downward from the pump 7 side toward the suction port 5 as shown in FIG. 2 so that the remaining water in the channel 13 can be drained through the suction port 5 when draining the bath water. It is desirable.

  The suction port 5 may be formed on the bottom surface of the bathtub body 1, but in this case, the suction port 5 is preferably formed on the bathtub wall because the drainage gradient of the flow path 13 described above is difficult to be provided. In general, a bather takes a bath with a posture in which the user leans back on one of the pair of short side bathtub walls and faces the other short side bathtub wall. When it is formed on the side bathtub wall, there is a concern that the suction port 5 is blocked by the bather's back and soles and an excessive load is applied to the pump 7. Therefore, it is desirable to form the suction port 5 in the long side bathtub wall that is not easily blocked by a part of the bather's body or the like.

  As shown in FIG. 1, for example, two jet nozzles 11 are attached to one short side bathtub wall 4 a. The two jet nozzles 11 are approximately the same height (in this embodiment, approximately 230 (mm) from the bottom surface of the bathtub body 1) at a predetermined distance (in this embodiment, the distance between the two jet nozzles 11 is approximately 160 (mm), and the center of the installation position of the two jet nozzles 11 and the central part in the direction of the short side bathtub wall 4a are provided. A bathtub faucet is provided on the side of the other short-side bathtub wall 4b opposite to the one short-side bathtub wall 4a to which the jet nozzle 11 is attached. Therefore, the bather normally takes a bath with a posture in which the back is directed to the short side bathtub wall 4a on the side where the jet nozzle 11 is provided.

  FIG. 3A is a schematic cross-sectional view of the jet nozzle 11, and FIG. 3B is a cross-sectional view taken along line AA in FIG.

  The jet nozzle 11 includes a substantially cylindrical cylindrical body 20, and at one end (upstream end) thereof is provided a flowing water inlet 21 that communicates with a flow path 14 connected to the discharge side of the pump 7, and the other end. A spout 26 is provided at the (downstream end).

  The cylindrical body 20 is held by the short-side bathtub wall 4a with the spout 26 facing the inside of the bathtub body 1. The cylindrical body 20 is held below the overflow edge of the bathtub body 1 and is held against the short-side bathtub wall 4a. Here, the “overflow edge” means an edge (or rim) of the bathtub body 1 that first overflows from the bathtub body 1 when the bathtub water is accumulated in the bathtub body 1. Due to such a configuration, the jet flow from the jet nozzle 11 can be jetted into the bath water.

  The jet nozzle 26 of the jet nozzle 11 faces the other short side bathtub wall 4b. The running water inlet 21 is connected to the flow path 14 on the outside of the bathtub body 1.

  In the cylindrical body 20 between the flowing water inlet 21 and the jet outlet 26, a flowing water introducing portion 22, a channel cross-section contracting portion 23, and a chamber 25 are provided in this order from the upstream side (flowing water inlet 21 side). The flowing water inlet 21 and the jet outlet 26 are in communication with each other.

  The running water introduction part 22 is provided between the running water introduction port 21 and the flow path cross-sectional contraction part 23, and the cross section of the flow path is gradually narrowed from the flowing water introduction port 21 toward the flow path cross-section contraction part 23. . The channel cross-section contraction portion 23 is located at the axial center C of the cylindrical body 20, and the channel cross-section is reduced with respect to the running water inlet 21 and the running water introduction portion 22.

  On the downstream side of the channel cross-section contraction portion 23, there is one end of a channel cross-section rapid enlargement portion 24 in which the channel cross-section is rapidly enlarged (for example, the diameter is rapidly enlarged three times or more) with respect to the channel cross-section contraction portion 23. The chamber 25 which has in a part (upstream side edge part) is provided. The chamber 25 continues up to the vicinity of the ejection port 26 with the inner diameter of the flow path cross-section suddenly enlarged portion 24. That is, the upstream side end portion of the chamber 25 functions as the flow path cross-sectional sudden expansion portion 24, and the downstream side end portion of the chamber 25 functions as the ejection port 26.

  Wall surfaces 23a and 24a surrounding the space in the cylindrical body 20 from the flow path cross-section contraction portion 23 to the flow path cross-section rapid enlargement portion 24 change substantially vertically. That is, the wall surface 23 a around the flow path cross-section contracting portion 23 is substantially parallel to the axial direction of the cylindrical body 20, whereas the upstream end portion of the chamber 25 functioning as the flow path cross-section suddenly expanding portion 24. The wall surface 24a is formed so as to extend outward in a radial direction following the wall surface 23a. Due to this sudden change in the flow path wall surface, separation of the flow from the wall surface occurs at the flow path cross-sectional sudden expansion portion 24 as will be described later.

  The wall surface 24a is not limited to extending substantially perpendicularly to the wall surface 23a, and the channel cross section expands toward the downstream side to the extent that flow separation occurs at the channel cross section rapid expansion portion 24. You may form in the shape of the funnel (or trumpet) which diameters. However, if the wall surface 24a is formed so as to continue substantially perpendicular to the wall surface 23a, it is easier to promote the separation of the flow in the flow path cross-section rapid expansion portion 24.

  The inner wall surface of the chamber 25 extends substantially parallel to the axial center C of the cylindrical body 20 from the channel cross-section suddenly enlarged portion 24 to the vicinity of the jet outlet 26. An inner wall surface that follows the ejection port 26 on the downstream side of the chamber 25 is an annular inclined surface 28 that is inclined toward the axial center C of the cylindrical body 20.

  In the chamber 25 in the vicinity of the spout 26, a shield 27 is provided to block a part of the flow path in the chamber 25 that leads to the spout 26.

  4A is a cross-sectional view of the cylindrical body 20 and the chamber 25 in a portion where the shield 27 is provided, and FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A.

  The shield 27 is formed in a disc shape, and is provided inside the chamber 25 with its center coinciding with the axial center C of the cylinder 20. The shield 27 does not shield all the flow paths in the chamber 25, and the flow that allows the flow of flowing water from the chamber 25 to the jet outlet 26 is allowed between the shield 27 and the inner wall portion 25 b of the chamber 25. A path 25a is secured.

  The shield 27 is supported with respect to the inner wall portion 25b of the chamber 25 via three rod-shaped support portions 31 provided radially between the shield 27 and the inner wall portion 25b of the chamber 25. One end of the support portion 31 is fitted and fixed inside the shield 27, and the other end is fitted and fixed in a hole formed in the inner wall portion 25 b of the chamber 25. The three support portions 31 are provided around the outer peripheral surface of the shield 27 at equal intervals along the circumferential direction.

  Since the shield 27 receives the pressure (dynamic pressure) of pressurized bathtub water introduced from the flowing water inlet 21 and flowing through the chamber 25 to the outlet 26, it can withstand the pressure when only one support portion 31 is provided. There is a possibility that sufficient strength cannot be obtained and the shield 27 may come off. If only two support portions 31 are provided, the pressure acting on the surface of the shield 27 is non-axisymmetric with respect to the axis C. There is a possibility that the shield 27 rotates due to the influence of the moment around the support portion generated by the distribution. Therefore, it is desirable to provide three or more support portions 31.

  As shown in FIG. 2, the tip of the jet nozzle 11 protrudes into the bathtub from the inner surface of the short side bathtub wall 4 a provided with the jet nozzle 11, and the business trip part 11 a is a posture of the bather. It functions as a posture restricting means for restricting.

  In the bathtub apparatus with a massage device according to the present embodiment configured as described above, when a bather operates a switch of a controller (not shown) provided in the vicinity of the bathtub body 1, the pump 7 is activated and the bathtub body 1 is moved to the bathtub body 1. The stored bathtub water is sucked into the flow path 13 from the suction port 5. The sucked bathtub water is pressurized by the pump 7 and introduced into the flowing water inlet 21 of the jet nozzle 11 through the flow path 14. The pressurized bathtub water introduced into the jet nozzle 11 is jetted into the bathtub water stored in the bathtub main body 1 as a swirling jet whose ejection direction is irregularly changed as described below.

  FIGS. 5A to 5D are schematic views for explaining an action in which a swirling jet is formed by the jet nozzle 11.

  The pressurized bathtub water introduced from the flowing water inlet 21 flows in the form of a jet into the chamber 25 through the flowing water introducing portion 22, the channel cross-section contracting portion 23, and the channel cross-section suddenly expanding portion 24 in order. When the pressurized bath water flows into the chamber 25 from the flow path cross-section contracting portion 23, it becomes impossible to flow along the inner wall surface of the cylinder 20 due to the sudden expansion of the flow path cross section, that is, against the inner wall surface of the flow path. Flow separation occurs.

  In general, the jet accelerates the external fluid by exchanging momentum with the external fluid, and is entrained inside the jet. At this time, if a wall surface exists in the vicinity of the jet, the jet itself is bent toward the wall surface by the reaction of the attractive force that acts to draw the external fluid into the interior, and the flow again follows the wall surface. That is, the flow is reattached to a part of the circumference of the inner wall surface of the chamber 25.

  The main stream adhering to the inner wall surface of the chamber 25 flows along the inner wall surface of the chamber 25 as it is, flows between the outer peripheral surface of the shield 27 and the inner wall surface of the chamber 25 toward the ejection port 26, and before the ejection port 26 (upstream side). ) And jets into the bath water from the jet outlet 26 as a jet that is inclined with respect to the axial center C along the inclined surface 28 formed so as to be inclined toward the axial center of the cylindrical body 20.

  As described above, a main flow (represented by a thick arrow a in FIG. 5A) is formed in the jet nozzle 11.

  The flow passage cross section of the jet outlet 26 is larger than the flow passage cross-section contraction portion 23, and the flow is decelerated downstream, that is, a reverse pressure gradient is formed in the chamber 25 where the static pressure increases downstream. Furthermore, since the shield 27 is provided in the chamber 25 so as to block a part of the flow path, a part of the main flow described above is not ejected from the ejection port 26, and the arrow b in FIG. As shown by the above, it is returned to the upstream side of the chamber 25.

  As shown in FIG. 5D, the flow returned to the upstream side flows into the stagnation region where the main flow is separated in the vicinity of the channel cross-section suddenly enlarged portion 24 as shown in FIG. 5C. Then, a swirling flow is formed around the central axis C in the vicinity of the channel cross-section suddenly enlarged portion 24, whereby the reattachment position with respect to the inner wall surface of the main flow changes irregularly in the circumferential direction, and the central axis C A jet swirling around is ejected.

  The state where the swirling jet is ejected from the jet nozzle 11 in a state where the jet flow is visualized by mixing bubbles into the jet flow is shown in the photographic diagrams of FIGS.

  The bather can obtain a massage effect by receiving a swirling jet ejected from the jet nozzle 11 on a part of the body such as the waist, back, shoulders, hands, and feet. The jet jetted from the jet nozzle 11 is a thick and soft swirling jet unlike the generally well-known bubble bath apparatus, so that it wraps around the waist and presses the entire back and waist. You can get a feeling of massage that feels like a hand massage that does not cause strong local stimulation, such as rice cakes, and you can relax and relax without having to get tired even if you take a bath for a long time. In addition, when a strong straight jet is locally received, it tends to be in a tension state in order to maintain a posture to receive the jet at a desired site, but the swirling jet of this embodiment is soft over a wide range. In order to give a stimulus, it is easy to make the bather relaxed without putting tension on the bather.

  The jet nozzle 11 is configured such that the bathtub water itself introduced therein excites the swirl of the jet jetted from the jet outlet 26 by the reflux action in the chamber 25 as described above. Only the introduced pressurized bath water flows inside the jet nozzle 11 during this jetting operation, and the jet nozzle 11 itself has no moving parts or sliding parts, and no motor is required to move these parts. In addition, the motor drive sound and the moving / sliding sound of the parts are not generated, and the noise can be reduced. In addition, there is no concern about turning performance degradation due to wear or dirt clogging at the movable / sliding part.

  Further, since the swirling motion of the jet is formed by the disturbance of the working fluid itself in the jet nozzle 11, a time zone in which the swirling frequency fluctuates irregularly, and a time zone in which the swirling frequency swirls at a substantially constant frequency, There are irregular times when the vehicle is not turning. As a result, a swirling jet with natural fluctuations can be realized without special control. As a result, it can be approximated to the sense of hand gripping by humans, and a swirling jet stimulus rich in change can be obtained, so that it does not get tired.

  The cylindrical body 20 in the jet nozzle 11 has a single structure. That is, in a single space (flow path) surrounded by one cylinder 20, a main flow toward the jet outlet 26 and a reflux flowing in a direction opposite to the main flow are formed, and the jet flows as a swirling jet into the bathtub water. Is done. Therefore, the structure is simplified, it can be manufactured at low cost, and maintenance is facilitated. Furthermore, there is no worry of turning performance deterioration due to clogging.

  Since the jet ejected from the jet nozzle 11 is swirling, even if air bubbles are not mixed in, a feeling of stimulation sufficient to receive a massage feeling can be obtained. Rather, it feels like a massage with a hand massage that is pushed with water that cannot be obtained by mixing bubbles.

  Further, since air bubbles are not mixed in the jet, the flow path between the suction port 5 and the jet port 26 of the jet nozzle 11 does not communicate with the communication port (air intake port) with the atmosphere. As a result, no sound is generated when the air is taken into the circulation flow path of the bath water or bubble foaming sound, and the jet massage can be received more relaxedly in a quiet environment.

  Even if there is a valve that switches the presence or absence of air bubbles or adjusts the amount of air bubbles, and closes the valve so that air bubbles do not enter the jet, the air remaining in the valve is drawn into the pipe and generates a foaming sound. There is a case to let you. However, in this embodiment, there is no structure itself for taking air into the circulation flow path of the bath water, and naturally there is no valve as described above, so that noise caused by the air remaining in the valve does not occur.

  The jet nozzle 11 jets a jet while continuously changing the jet jet angle or the position of the jet outlet, and the jet collision site (for example, jet jet site on the bather's back) with respect to the bather is larger than the thickness of the jet flux. A trajectory that moves in a predetermined range with continuous periodic motion is drawn. Here, the “periodic motion” means that the jet collision site moves within the predetermined range while repeating a similar locus.

FIG. 7 is a schematic diagram showing the thickness of the jet flux ejected from the jet nozzle 11 and the range in which the jet flux moves.
In FIG. 7, the thickness of the jet flux is represented by a circle, and the predetermined range in which the jet flux moves is represented by the circle A. Moreover, an example of the movement trajectory of the jet flux (center) is represented by a one-dot chain line.

  The thickness of the jet flux corresponds to the thickness of a human finger, and the predetermined range A corresponds to the range in which the finger moves. Therefore, according to this embodiment, a shiatsu massage feeling that moves on the surface of the human body while being pressed with a finger is obtained.

  In order to realize the sensation of being massaged with fingers (especially the thumb often used for general acupressure), a jet having a thickness of 1 cm to 3 cm in a circle (predetermined range A) having a diameter of 5 cm to 8 cm. It is preferable to move while pushing with a bundle, and the diameter of the jet outlet 26 of the jet nozzle 11 is preferably 1 cm or more and 3 cm or less.

  In addition, when the human body receives a jet with bubbles, the boundary between the part that the jet feels and the part that does not collide is ambiguous due to the collision of the bubbles at multiple points and the rising of the bubbles due to buoyancy. It was difficult to feel the movement of the water flow clearly. Therefore, the feeling of moving on the surface of the human body while being pressed by a water flow is not received, and a shiatsu massage feeling that moves on the surface of the human body while being pressed by a finger cannot be obtained.

  On the other hand, since the jet nozzle 11 of this embodiment spouts the jet which does not have a bubble substantially into bathtub water, it can feel the movement of the water flow on the surface of a human body clearly, without being influenced by a bubble. It is possible to obtain a feeling of moving on the surface of the human body while being pressed by a water stream, that is, a feeling of shiatsu massage that moves on the surface of the human body while being pressed by a finger.

  Here, the “jet without substantial bubbles” means that bubbles (microbubbles, nanobubbles, etc.) having a diameter of several tens of μm or less may be included in the jet. Even if such bubbles with a diameter of several tens of μm or less are included in the jet, the movement of the water flow on the surface of the human body can be clearly felt.

  When a person actually performs acupressure massage, the load position is moved while applying a load to the human body surface, so the direction of the load on the human body surface is generally oblique to the human body surface. The swirling jet ejected from the jet nozzle 11 of the present embodiment is deflected and ejected from the central axis C, and the jet collision point moves and collides with the human body surface from an oblique direction. It is easy to get a hand massage massage near your finger.

  In the human skin, it is easier to feel a change in stimulation by stimulating one site than by simultaneously stimulating multiple sites that are close to each other. For example, when stimulating two points on the back, those sites are separated by 40 mm or more. It is easier to feel that there is another stimulus at two points. Therefore, when a plurality of jet nozzles 11 are provided on the back side (short side bathtub wall 4a), the two jet nozzles 11 are preferably provided at least 50 mm or more, preferably 100 mm or more apart. In addition, if there are two jet holes (jet outlets) in one nozzle as in Patent Document 2, it becomes simultaneous stimulation to two parts that are close to each other and it is difficult to feel the movement of the jet, but in this embodiment, one jet nozzle 11 has only one jet outlet 26, and therefore, it is possible to obtain a feeling that the jet flow from each jet nozzle 11 moves on the surface of the human body.

  In addition, since the swirling jet jetted from the jet nozzle 11 of the present embodiment is jetted with an inclination of, for example, 0 ° to 30 ° from the central axis C of the jet nozzle 11, the feeling of stimulation varies depending on the distance from the jet outlet 26. When the distance from the ejection port 26 is approximately 20 (mm) or less, a feeling of irritation that strongly pushes a narrow range is obtained. At a position where the distance from the ejection port 26 is approximately 20 to 100 (mm), the swirling of the jet is noticeable and a feeling of stagnation due to the jet is obtained. When the distance from the jet nozzle 26 is 30 to 50 (mm), the whirling of the jet is noticeable and the diffusion of the water flux is small, and a greater stimulation can be obtained. At a position where the distance from the ejection port 26 is approximately 100 (mm) or more, a sense of stimulation that can be pushed over a wide area is obtained by the jet that has been greatly diffused by swirling.

  Here, as shown in FIG. 2, when the bather sits back on the short side bathtub wall 4 a and takes a relaxing bath, place the buttocks in a position slightly away from the short side bathtub wall 4 a, The bather's upper body naturally takes a short side bath wall because he takes a bathing posture with his head placed on a bathtub pillow, etc., or with his neck, shoulder or part of the back in contact with the short side bath wall 4a. At a height that is inclined with respect to 4a and the jet nozzle 11 is installed (230 mm from the bottom surface in the present embodiment), there is approximately 30 to 100 (mm) between the short side bathtub wall 4a and the bather. A gap of a degree is generated. On the other hand, the jet nozzle 11 is composed of at least two or more nozzle components that are detachable from each other. By these nozzle components, a hole or the like opens in the short side bathtub wall 4a. Therefore, the tip of the jet nozzle 11, that is, the jet outlet 26, is approximately 5 to 10 (relative to the short side bathtub wall 4 a. mm) Located inside the bathtub.

  That is, by disposing the jet nozzle 11 on the short side bathtub wall 4a, the distance from the jet outlet 26 to the human body is approximately 20 to 95 (mm), and the bather leans back on the short side bathtub wall 4a. A jet can be accurately applied to a part of the body of the human body, and sufficient hand scissors or acupressure can be given.

  Since the jet jetted from the jet nozzle 11 is not particularly mixed with bubbles, and is a soft-swirl swirling jet, the bather has a jet 26 as compared with a jet containing bubbles that give a strong linear stimulus. In some cases, it may happen that the spout 26 is blocked by the back.

  Therefore, as shown in FIG. 2, if the tip of the jet nozzle 11 protrudes from the inner surface of the short side bathtub wall 4a to which the jet nozzle 11 is attached to the inside of the bathtub, for example, by 10 mm, the bather has a perfect back. When it is along the inner surface of the short side bathtub wall 4a, the business trip part 11a of the jet nozzle 11 hits the back and feels uncomfortable, so the bather should take a posture to naturally separate his back from the short side bathtub wall 4a. Therefore, it is possible to prevent the spout 26 from being blocked by the bather's back.

  When the protruding length of the tip of the jet nozzle 11 from the inner surface of the bathtub wall is 5 mm or less, it is difficult for the bather to feel the protruding of the jet nozzle 11 as a touch. It gets in the way and also detracts from design. Therefore, it is desirable to set the protruding length of the tip of the jet nozzle 11 from the inner surface of the bathtub wall between 5 and 30 mm.

  A bather having a height of 155 to 175 cm is provided in a configuration in which the jet nozzle 11 is provided on the short-side bathtub wall of the bathtub having a height of 525 mm from the bottom of the bathtub to the inner side of the bathtub by 10 mm. When the upper part of the back is in contact with the wall surface of the bathtub so as to lean against the rim from the head to the rim, the bather's back or waist is taken from the tip of the jet nozzle 11 when entering the bathtub. The distance up to 30 to 80 mm, and the swirling jet from the jet nozzle 11 described above can be accurately applied to a part of the bather's back or waist to give a sufficient hand feeling or acupressure.

  The swirling jet ejected from the jet nozzle 11 is more easily changed in the range (collision range) where the jet hits the human body due to the variation in the distance between the jet outlet and the human body than the jet jet ejected linearly. Depending on the distance between the nozzle and the spout, it may not be possible to obtain hand feeling or acupressure. However, as described above, by appropriately setting the protruding length of the tip of the ejection nozzle 11, the distance between the ejection port and the human body can be naturally set at, for example, 30 to 80 mm, and sufficient hand grip A feeling of feeling or acupressure can be given.

  The posture regulating means for regulating the bather's posture is not limited to the business trip part 11 a of the jet nozzle 11. For example, as shown in FIG. 8, a pillow 101 or spine protruding toward the inside of the bathtub on the upper part of the short side bathtub wall 4a to which the jet nozzle 11 is attached (the part above the jet nozzle 11 attachment position). By providing the abutment 102, the bather is regulated in a desired posture so that a desired interval (30 to 80 mm) is naturally formed between the spout 26 and the back or waist of the bather. You can also.

  If the thickness of the pillow 101 and back rest 102 is (the protruding length of the jet nozzle 11) + (30-80 mm), the bather leans against the pillow 101 and back rest 102 from the head to the neck and back. When sitting on the bottom of the bathtub in a different posture, the back or waist of the bather is naturally separated from the tip of the jet nozzle 11 by about 30 to 80 mm, and the posture can be optimal for obtaining a hand feeling or acupressure. Note that only one of the pillow 101 and the backrest 102 may be provided.

  In the present embodiment described above, the static pressure in the chamber 25 of the jet nozzle 11 is lower than the static pressure of the bathtub water stored in the bathtub body 1, and the reverse pressure in which the static pressure increases toward the downstream side inside the chamber 25. Since a gradient is formed, it is possible to form a reflux that returns a part of the main flow to the upstream side of the chamber 25 without providing the shield 27. However, providing the shield 27 forms a more stable (increased reliability) reflux compared to the reflux formation due to the reverse static pressure gradient (the static pressure increases in the flow direction). The swirl of the jet is stable.

  Further, even if the inclined surface 28 is not provided before (upstream side) the jet outlet 26, the deflected jet flow is realized because the main flow is biased to a part of the circumference of the inner wall of the chamber 25 as described above. By providing the main flow along the inclined surface 28, deflection of the main flow can be promoted, and it becomes easy to form a soft swirling jet over a wider range.

  The inner diameter of the flowing water introduction portion 42 may be substantially the same from the flowing water introduction port 21 to the flow path cross-sectional contraction portion 43a. However, as in the above-described embodiment shown in FIG. 3, the flow passage cross section of the flowing water introduction portion 22 is gradually narrowed from the flowing water introduction port 21 toward the flow passage cross section contraction portion 23, so Pressure loss is reduced, and it is not necessary to apply a large pressure during ejection. That is, it is not necessary to make the pump 7 large, and the installation space and cost can be reduced.

  The number of suction ports 5 is not limited to one, and a plurality of suction ports may be provided. The number of the jet nozzles 11 is not limited to two, and one jet nozzle 11 may be provided on the short side bathtub wall 4a. Of course, three or more jet nozzles 11 may be provided.

  The jet nozzle 11 is not limited to a substantially cylindrical shape, and may be a substantially elliptical cylindrical shape. Alternatively, a jet nozzle having a rectangular cross section may be used.

Or you may use the jet nozzle 40 from which the position of the jet hole 43a changes, as shown in FIG.
FIG. 9A is a schematic view of the jet nozzle 40 viewed from the side, and FIG. 9B is a schematic cross-sectional view of a portion of the jet nozzle 40 where the impeller 42 is provided. ) Is a cross-sectional view of the rotating body 43 in the jet nozzle 40.

  The jet nozzle 40 has a substantially cylindrical tubular body 41, and a rotating body 43 is rotatably provided therein. A rotating shaft 44 is rotatably supported at the axial center of the cylindrical body 41, and the rotating body 43 and the impeller 42 are fixed to the rotating shaft 44. The impeller 42 has a plurality of blades 42 a and is provided on the upstream side of the rotating body 43 in the cylindrical body 41. The rotating body 43 is formed with one ejection hole 43 a that extends substantially parallel to the rotating shaft 44 and penetrates the rotating body 43. The downstream end 46 of the cylindrical body 41 is opened, and the jet nozzle 40 is attached to the bathtub wall with the downstream end 46 facing the inside of the bathtub.

  When the above-described pressurized bath water is introduced into the cylindrical body 41 from the flowing water introducing portion 45 provided in communication with the space facing the impeller 42, the impeller 42 rotates, and accordingly, the rotating body 43. Also rotates integrally with the impeller 42. Due to the rotation of the rotating body 43, the position of the ejection hole 43 a changes along a locus that draws a circle around the rotation shaft 44.

  In other words, the jet nozzle 40 ejects a jet while continuously changing the position of the ejection hole (spout port), so that the jet collision portion with respect to the bather has a predetermined period larger than the thickness of the jet flux. Draw a trajectory that moves with movement. As a result, also in the jet nozzle 40, a shiatsu massage feeling that moves on the human body surface while being pressed by a finger is obtained.

  In addition, bubbles are not mixed in the jet, and the rotation of the rotating body 43 uses the force of the water flow and does not use a motor. Therefore, noise reduction and cost reduction can be achieved.

  Furthermore, since air bubbles are not mixed, the movement of the water flow on the surface of the human body can be clearly felt without being affected by the air bubbles, and the movement on the surface of the human body while being pushed by the water flow, that is, pressing with a finger. It is possible to obtain a feeling of acupressure massage that moves on the surface of the human body as it is.

  In addition, since the ejection hole 43a is formed substantially parallel to the rotation shaft 44, the jet ejection direction is substantially constant (substantially parallel to the rotation axis) as the rotating body 43 rotates, and the nozzle Even if the distance between the tip and the bather fluctuates, the jet collision site on the human body surface does not change greatly.

  FIG. 10 is a schematic diagram illustrating still another specific example of the jet nozzle.

  The jet nozzle 50 has a substantially cylindrical cylindrical body 51, and a rotary body 52 supported by a shaft member 53 provided at the axial center of the cylindrical body 51 is rotatably provided therein. . The rotating body 52 is formed with one ejection hole 52a that penetrates the rotating body 52 from the upstream side to the downstream side. The ejection hole 52a is not parallel to the shaft member 53, but is gradually deflected outwardly away from the shaft member 53 toward the downstream side. Alternatively, the ejection hole 52a may be formed by being deflected inward and radially closer to the shaft member 53 as it goes downstream. The downstream end 55 of the cylinder 51 is opened, and the jet nozzle 50 is attached to the bathtub wall with the downstream end 55 facing the bathtub. The inner diameter of the ejection hole 52a is 14 (mm), and the distance between the center of the rotating body 52 and the center of the ejection hole 52a is 15 (mm).

  When the above-described pressurized bathtub water is introduced from the flowing water introduction part 54 into the upstream side of the rotating body 52 in the cylindrical body 51, the bathtub water passes through the ejection holes 52a and is opened downstream of the cylindrical body. It spouts out from the end 55 into the bathtub. Here, since the ejection hole 52a is not parallel to the shaft member 53 but is deflected as described above, the rotating body 52 rotates around the shaft member 53 by the reaction force of the water flow flowing in the ejection hole 52a. The position of the ejection hole 52a changes. Further, in the state of FIG. 10 (a), the ejection direction is upward, and in the state of FIG. 10 (b) in which the rotary body 52 is rotated from FIG. 10 (a), the ejection direction is downward. The ejection direction changes continuously with the rotation.

  That is, the jet nozzle 50 ejects a jet while continuously changing the position and direction of the ejection hole (ejection port), so that the jet collision site for the bather continues in a predetermined range larger than the thickness of the jet flux. Draw a trajectory that moves with periodic motion. As a result, also in the jet nozzle 50, a shiatsu massage feeling that moves on the surface of the human body while being pressed by a finger is obtained. In particular, when the discharge flow rate per ejection hole 52a was set to 25 (liters / minute) or more, a shiatsu massage feeling that moved on the surface of the human body while being pressed by a finger was obtained. In particular, in the present embodiment, since one ejection hole 52a is provided in one rotating body 52, compared to a case where two ejection holes are provided in one rotating body 52, the surface of the human body remains pressed with a finger. Easy to feel a sense of shiatsu massage moving up.

  Further, since no bubbles are mixed in the jet, and the rotating body 52 is rotated by utilizing the reaction force of the water flow, and no motor is used, noise reduction and cost reduction can be achieved.

  Furthermore, since air bubbles are not mixed, the movement of the water flow on the surface of the human body can be clearly felt without being affected by the air bubbles, and the movement on the surface of the human body while being pushed by the water flow, that is, pressing with a finger. It is possible to obtain a feeling of acupressure massage that moves on the surface of the human body as it is.

  In the jet nozzle 50 that rotates the rotator 52 using the reaction force of the water flow, since no bubbles are mixed, the linear flow velocity of the water flow becomes smaller than when bubbles are introduced, and the rotation speed of the rotator 52 becomes smaller. , Easy to give a soft hand feeling.

  FIG. 11 is a schematic diagram showing still another specific example of the posture regulating means.

  In this specific example, the other short-side bathtub wall 4b is opposed to the upper side of the one-side bathtub wall 4a on which the jet nozzle 11 is provided, and the lower side (tub bottom) is opposed to the upper part. An inclined surface 104 that is inclined so as to shorten the distance is provided as a posture regulating means. When the bather leans back on the inclined surface 104, a gap is naturally formed between the tip of the jet nozzle 11 and the bather, and the jet nozzle 26 is prevented from being blocked, and a sense of acupressure is felt. You can keep the proper distance to get.

  According to the study by the present inventors, the lower end of the inclined surface 104 is positioned at a height of about 50 (mm) from the center of the ejection port 26, and the angle θ = 10 to 15 with respect to the vertical line Z passing through the lower end. When the inclined surface 104 is inclined to the outside of the bathtub wall 4a by about °, if the bather leans back along the inclined surface 104, the distance between the tip of the jet nozzle 11 and the back of the bather is 20 to 95 ( mm). The surface of the inclined surface 104 is not limited to a flat surface but may be a curved surface.

The schematic plan view showing schematic structure of the bathtub apparatus with a massage apparatus which concerns on embodiment of this invention. The schematic diagram which looked at the bathtub main body from the side surface direction in the bathtub apparatus with a massage apparatus. (A) is a schematic cross section of the jet nozzle in the bathtub apparatus with a massage apparatus, (b) is an AA cross section in (a). It is sectional drawing of the shielding body part in the jet nozzle, (b) is BB sectional drawing in (a). The schematic diagram for demonstrating a turning jet being formed with the jet nozzle. The photograph figure showing a mode that the swirling jet was ejected from the jet nozzle in the state which mixed the bubble into the jet flow and visualized the jet flow. The schematic diagram showing the range to which the thickness of a jet flux, and the jet flux move in the bathtub apparatus with a massage apparatus which concerns on this embodiment. The schematic diagram showing the other specific example of an attitude | position control means in the bathtub apparatus with a massage apparatus which concerns on this embodiment. The schematic diagram showing the other specific example of a jet nozzle in the bathtub apparatus with a massage apparatus which concerns on this embodiment. The schematic diagram showing the other specific example of a jet nozzle in the bathtub apparatus with a massage apparatus which concerns on this embodiment. The schematic diagram showing the other specific example of an attitude | position control means in the bathtub apparatus with a massage apparatus which concerns on this embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Bathtub main body, 5 ... Suction port, 7 ... Pressurization apparatus (pump), 11 ... Jet nozzle, 22 ... Flowing water introduction part, 23 ... Channel cross-section contraction part, 24 ... Channel cross-section rapid expansion part, 25 ... Chamber , 26 ... spout, 27 ... shield, 11a, 101, 102, 104 ... posture regulating means

Claims (5)

A bathtub device with a massage device using a jet spouted into the bathtub water,
A bathtub body having a bath water inlet formed in the bathtub wall;
A pressurizing device for sucking and pressurizing bath water from the suction port;
A jet nozzle having a jet outlet for jetting the bathtub water sent from the pressurizing apparatus into the bathtub water stored in the bathtub body;
A posture regulation means for regulating the posture of the bather, provided on the bathtub wall on the side of the bathtub body where the jet nozzle is provided,
The flow path between the suction port and the jet nozzle outlet does not communicate with the atmosphere.
The jet nozzle ejects a jet having substantially no bubbles so as to draw a trajectory in which a jet collision portion with respect to a bather moves in a predetermined range larger than the thickness of the jet flux in a continuous periodic motion. Bathtub device with massage device.   The bathtub apparatus with a massage device according to claim 1, wherein the posture regulating means is a business trip part of the jet nozzle protruding from the inner surface of the bathtub wall into the bathtub.   The said attitude | position control means is an inclined surface provided in the upper part rather than the said jet nozzle installation site | part in the said bathtub wall, and was inclined so that the distance with the opposing bathtub wall might become short as it went below. The bathtub apparatus with a massage apparatus of 1 or 2.   The bathtub apparatus with a massage device according to claim 1 or 2, wherein the posture regulating means is a backrest provided on the bathtub wall.   The said posture control means is a pillow provided in the said bathtub wall, The bathtub apparatus with a massage apparatus of Claim 1 or 2 characterized by the above-mentioned.