JP6570190B2 - Water bed type massage device - Google Patents

Description

This patent relates to a water bed type massage device.

Conventionally, a water bed type massage device is provided with a rotary nozzle, and by moving the rotary nozzle up and down along the height direction, stimulation is performed from the back to the calf with the water pressure of the jet ejected from the rotary nozzle. Those that give are common.
For example, as disclosed in Japanese Patent Application Laid-Open No. 2013-240553, as shown in FIG. 18, four rotary nozzles 30 are provided, and by rotating the rotary nozzles 30, massage is performed from the back to the calf. .

JP 2013-240553

  The conventional method is superior in that it has four nozzles and can be massaged in a wide range, but it is not necessarily an optimal massage for a user suffering from back pain or the like. Specifically, with regard to the four nozzles, the strength of the jet, the rotation range, etc. can be changed, and the user can press the location required by the jet. The order was not necessarily optimal based on the treatment of low back pain.

In view of the above-described problems, an object of the present invention is to perform an optimal massage especially for a user suffering from a specific disease such as a patient with low back pain. Therefore, the water bed type massaging apparatus of the present invention, mounting a water tank, a mounting film stretched telescopic upper surface of the water tank, a nozzle for applying a pressure to the user on the mounting layer, said nozzle a carriage unit for, and a horizontal axis which can move the carriage unit in a longitudinal direction of the water tub, the nozzles are arrangement on the left and right in the lateral direction of the tub, rotating nozzles rotating on the carriage unit And a central fixed nozzle fixed on the cart unit, and the rotary nozzle has respective jet ports on the left and right rotary nozzles, and the jet port is connected to a predetermined axis from the rotary shaft on the cart unit. The center fixed nozzle has two jet openings, is fixed near the center of the rotary nozzle to massage the multifidus of the human body, and the two fixed jet nozzles are spaced apart from each other. Septum is made as average human multifidus interval equivalent of right and left.

  According to the present invention, it is more effective for a patient with low back pain and the like by solving the multifidus muscle, which is a deep layer muscle, using a central fixed nozzle, and solving the latissimus dorsi muscle, etc. on the surface layer with a rotating nozzle. You can get a massage effect.

FIG. 1 is a diagram showing an overall configuration of a water bed type massage apparatus according to a first embodiment of the present invention (a state where a mounting film and a cover on the side of the apparatus are removed) FIG. 2 is a diagram showing how a user is massaged using the water bed type massage device FIG. 3 is a perspective view around the nozzle of the water bed type massage device. FIG. 4 is a perspective view of a fixed central nozzle of the water bed type massage device. FIG. 5 is a top view of the nozzle of the water bed type massage device. FIG. 6 is a conceptual diagram viewed from the side of the water bed type massage device. FIG. 7 is a conceptual diagram showing the movement of the nozzle of the water bed type massage device from above. FIG. 8 is a view showing a massage part by a massage pattern of the water bed type massage device FIG. 9 is a view showing a massage part by another massage pattern of the water bed type massage device FIG. 10 is a view showing a massage part with still another massage pattern of the water bed type massage device FIG. 11 is a diagram showing the entire configuration of the water bed type massage device according to the second embodiment of the present invention (a state in which the mounting membrane and the device side cover are removed). FIG. 12 is a view showing the movement of the foot portion related to the water bed type massage device FIG. 13 is a main configuration diagram of the heel fixing portion according to the water bed type massage device. FIG. 14 is a view showing a foot pad of the heel fixing portion according to the water bed type massage device FIG. 15 is a diagram illustrating a user using the heel fixing unit according to the water bed type massage device. FIG. 16 is a view showing the attachment state of the magnetic coupling of the water bed type massage apparatus according to the third embodiment of the present invention from the inside of the aquarium. FIG. 17 is a view showing the attachment state of the magnetic coupling of the water bed type massage device from the outside of the water tank (the state where the mounting membrane and the device side cover are removed). FIG. 18 is a conceptual diagram showing a conventional water bed type massage device

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a total of four rotating nozzles are arranged. The head-side rotary nozzle set 1 and the foot-side rotary nozzle set 2 are rotated in conjunction with each other using a gear 4 (see FIG. 3). Each set of rotating nozzles (hereinafter referred to as “left and right nozzles”) is rotated by the gear 4 at the same rotational angular velocity in the opposite phase.

In the present embodiment, the diameter of the rotary nozzle 2 on the foot side to the gear trough position is 170 mm, and the distance from the jet port 15 to the rotation axis is 55 mm (see FIG. 5). Further, the closest approach distance between the jet nozzles of the left and right rotating nozzles on the foot side is 65 mm (the situation of the jet nozzle 15 shown in FIG. 5). Similarly, the same diameter of the rotary nozzle 1 on the head side is 120 mm, and the distance from the jet port 14 to the rotation axis is 35 mm. Further, the left and right nozzles are not in direct contact with the gear 4, and the shortest distance between the peak positions of the gear is 50 mm. The closest approach distance between the jet ports of the left and right rotary nozzles 1 on the head side is 100 mm. A central fixed nozzle 3 is provided near the center of the rotary nozzles 1 and 2. The center fixed nozzle 3 has two jet openings 13. The distance between the two jets 13 is 25 mm.

The rotating nozzles 1 and 2 and the center fixed nozzle 3 are mounted on the carriage unit 5. The cart unit 5 is movable in the height direction in the water tank 6 (see FIG. 6). Specifically, the rotation drive unit 8 and the bearing 19 of the horizontal shaft 7 are respectively provided at both ends of the water tank 6, and the horizontal shaft 7 is rotated by the rotation drive unit 8, so that the cart unit 5 on which the nozzle is mounted is in the height direction. (Hereinafter referred to as “vertical movement”). A stretchable mounting film 9 is stretched on the upper surface of the water tank 6, and extends so as to protrude upward by the water pressure from the nozzle outlet. A user sleeping on his back on the mounting film 9 is massaged by the water pressure.

Moreover, the pump 10 which sends the water of the water tank 6 to a nozzle is provided (refer FIG. 6). The water flow sent from the pump 10 is supplied to each nozzle via the water flow hose 11. The driving force required for the rotation of the rotating nozzle may use the water pressure supplied from the water flow hose 11, but in order to freely control the rotating angular velocity of the rotating nozzle, a unique rotating drive motor (not shown) It is desirable to have Also, if the water flow hose 11 is provided individually corresponding to each nozzle, it is possible to massage with different water pressure for each nozzle, but it is desirable that the water pressure from the jet port of the left and right rotating nozzles be the same, It is desirable that the right and left rotary nozzles supply water branched from the same water flow hose 11.

In addition, a sensor (not shown) for detecting the height of the user sleeping on the mounting film 9 is provided. Various methods such as a contact type and an optical type can be adopted for the height sensor, but in this embodiment, a heel fixing part 12 for fixing the user's foot part is provided, and the position of the foot is determined and the head of the aquarium is fixed. An infrared sensor (not shown) for detecting the head position is attached to the part side, and the position of the back and waist is estimated by detecting the head position. It is also possible to detect the size of the dent of the mounting film 9 when the user sleeps and detect the position of the waist and back.

Further, a storage device (not shown) for storing a plurality of massage patterns is provided. The optimum method is selected from a plurality of patterns stored in the storage device according to the user's preference and the location to be massaged. For example, the waist and legs can be massaged mainly, the strength of the jet pressure can be changed, and the massage time can be changed. Although it is possible for the user to select individually, it is also possible to automatically select an optimal massage pattern in accordance with a rough instruction from the user.
In the present embodiment, the central axes of the rotary nozzles 1 and 2 are fixed on the carriage unit 5, and by engaging the gears 4 arranged on the outer periphery of the rotary nozzles 1 and 2, all the rotary nozzles 1, 2 can be rotated simultaneously. Since the head-side rotary nozzle 1 and the foot-side rotary nozzle 2 have different diameters, the rotational angular velocity of the head-side rotary nozzle 1 increases and rotates faster than the foot-side rotary nozzle 2. .

The center fixed nozzle 3 is located near the center of the rotary nozzles 1 and 2 and is fixed on the carriage unit 5. The distance between the two jet nozzles 13 of the center fixed nozzle 3 is set assuming the distance between the average human left and right multifidus. In this embodiment, the distance between the two jet nozzles 13 is fixed at 25 mm. However, by providing a separate driving device and changing the distance for each user, a more optimal massage is possible. is there.
Further, the rotation of the rotary nozzles 1 and 2 causes the jet ports 14 and 15 and the jet port 13 of the center fixed nozzle 3 to move away from each other. It is equal to or less than the distance (65 mm in this embodiment) at the time of closest approach between the jet nozzles of the rotary nozzle 2. In this embodiment, it is set to 60 mm. Since the distance between the two jet nozzles 13 of the center fixed nozzle 3 is short, depending on the user, it is easy to make an illusion if one place is being massaged. By setting the distance between the jet nozzles 14 and 15 of the rotary nozzles 1 and 2 and the jet nozzle 13 of the center fixed nozzle to the same level as the closest approach distance of the jet nozzle of the rotary nozzle 2 on the foot side, , Can give a moderate feeling of concentration or separation.

  The center fixed nozzle 3 is located near the center of the rotary nozzles 1 and 2 on the head side and the foot side, and is arranged close to the rotary nozzle 1 side on the head side. The rotation nozzle 1 on the head side has a smaller rotation diameter and a higher rotation angular velocity than the rotation nozzle 2 on the foot side. Therefore, compared with the rotary nozzle 2 on the foot side, the same portion can be repeatedly massaged with high frequency. By setting the distance between the left and right jets 14 of the rotary nozzle on the head side to a distance about the width of the neck (100 mm in this embodiment), when massaging the vicinity of the head, It is possible to massage the shoulder levator muscles with emphasis.

  The massage range of the rotary nozzle on the head side is narrower than the same range of the rotary nozzle 2 on the foot side by the smaller rotation diameter. For this reason, the left and right rotary nozzles on the head side are arranged apart from each other with a central portion therebetween. At the same time, the center fixed nozzle 3 is arranged near the center thereof to cover the narrow massage range by the rotating nozzle. In this embodiment, the right and left rotary nozzles 1 on the head side are not in direct contact with the gear, and the shortest distance between the crest positions of the gear is 50 mm, and the closest distance between the jet ports Is 100 mm. Further, the closest approach distance between the jet port 14 of the rotary nozzle 1 on the head side and the jet port 13 of the center fixed nozzle 3 is set to 55 mm.

  Further, since the center fixed nozzle 3 is provided near the center of the rotary nozzles 1 and 2 on the head side and the foot side, the positions of the fixed nozzle 1 and the rotary nozzles 1 and 2 are effective depending on the combination during the jet flow. Can be used for Specifically, when only the center fixed nozzle 3 and the foot side rotating nozzle 2 are used, muscles around the spine of the human body (such as multifidus muscles) are massaged, while the muscles on the side of the foot (scapular back) Etc.) can be massaged in a wide range with a rotating nozzle. Similarly, if the rotary nozzle 1 on the head side and the center fixed nozzle 3 are combined, the trapezius muscle and the like can be massaged in a wide range by the rotary nozzle 1 while massaging the multifidus muscle.

  In patients with chronic low back pain, the multifidus muscle is often atrophied. When the multifidus atrophy, spinal stability decreases. When muscle tone is high, muscle contraction cannot be obtained properly, so it is important for patients with low back pain to condition the multifidus muscle. In particular, the role of the lower lumbar vertebra is important because the ratio of multifidus muscle is high. Many spinal disorders can occur in the lower lumbar spine, and atrophy of multifidus and back pain are thought to be closely related. Here, the multifidus muscle is a deep layer muscle, and when massaging it, the latissimus and longest muscles cover the surface layer. In order to effectively massage the multifidus muscle, the periphery of the transverse process of the lumbar vertebra is pressed by a jet flow from the central fixed nozzle 3. When massaging a patient with low back pain effectively, in the first half step, the utilization frequency of the central fixed nozzle 3 is increased (see FIG. 8a), and the multifidus muscles are loosened with emphasis.

As the massage process progresses to the middle stage, the focus of the massage is shifted from the multifidus muscle to the surrounding muscles (such as the latissimus dorsi). For this reason, the frequency of jets from the central fixed nozzle 3 is decreased, and the frequency of jets from the rotary nozzles 1 and 2 is gradually increased (see FIGS. 8b and 8c). About the change of the said ratio, it changes according to the massage pattern and the strength of the jet which the user selected.
In this embodiment, the rotational angular velocities of the rotary nozzles 1 and 2 are such that when the central fixed nozzle 3 is used to loosen multiple fissures, the rotational angular velocity is suppressed, and there is no jet from the central fixed nozzle 3. Make different movements.

Even if the structure has no central fixed nozzle as in the conventional example, if the rotation of the rotary nozzle 30 shown in FIG. 18 is stopped and the nozzle is positioned near the center, the vicinity of the multifidus is actively jetted. can do.
However, in this case, it is necessary to make the shortest distance between the two jet nozzles of the rotary nozzle 30 quite close to about 25 mm. Therefore, the jet nozzle is installed at a position close to the outermost periphery of the rotary nozzle, and there arises a problem that the pressing range when the rotary nozzle 30 is rotated and massaged is excessively dispersed. Further, when using the rotary nozzle 30 while stopping the rotation, it is not possible to massage the latissimus dorsi muscle and the like simultaneously.

  In the present embodiment, the diameter of the jet nozzle is different between the center fixed nozzle 3 and the rotary nozzles 1 and 2. The jet port 13 of the central fixed nozzle 3 is configured to be smaller than the jet ports 14 and 15 of the rotary nozzles 1 and 2, and the jet is spot-like compared to the jet of the rotary nozzle. Specifically, in this embodiment, the diameter of the jet port 13 of the central fixed nozzle 3 is 7 mm, and is smaller than the diameter of 11 mm of the jet ports 14 and 15 of the rotary nozzles 1 and 2. With this configuration, the jet stream can be applied to the multifidus in a spot manner. In addition, when water is supplied to the central fixed nozzle 3 and the rotary nozzles 1 and 2, when a branch from the same water flow hose is used, the jet pressure can be increased by the diameter ratio of the jet port.

  An example of massaging the upper body using the center fixed nozzle 3 and the rotating nozzles 1 and 2 will be described with reference to FIG. Although the said massage method has individual differences, the following method etc. are mentioned as one of the effective methods. First, in order to loosen the central part of the waist, the vicinity of the sacrum of the greater ankle muscle is massaged using the central fixed nozzle 3 and the rotating nozzles 1 and 2 (see FIG. 9a). At this time, the rotary nozzles 1 and 2 reciprocate the inner half circumference of the rotary nozzles 1 and 2 so as to stimulate the vicinity of the sacrum. Next, in order to stimulate the part of the greater gluteal muscle opposite to the sacrum and the small gluteal muscle (away from the sacrum), the jet flow from the central fixed nozzle 3 is stopped (or the frequency is lowered), and the rotating nozzle 1 2 reciprocates around the outer half circumference (see FIG. 9b). At this time, the range can be expanded in the height direction by vertically moving the cart unit 5 in the height direction. Moreover, if the rotary nozzle 1 on the head side is used, stimulation can be repeated repeatedly in a smaller spot-like circumferential range, but a rotary nozzle on the foot side may be used. Thereafter, the entire buttocks are stimulated (see FIG. 9c). At this time, massage is also performed using the rotary nozzle 2 on the foot side. The simultaneous use of the rotary nozzle 1 on the head side is not excluded.

Then, massage the area from the vicinity of the sacrum to the base of the 11/12 ribs (upper waist). At this time, the outside of the spine is stimulated 3-4 cm outside (see FIG. 9d). Next to the upper waist stimulates the multifidus muscle near the center of the spine from the sacrum to the vicinity of the cervical vertebra (see FIG. 9e). The jet from the rotating nozzle is stopped and the jet from the center fixed nozzle is used with emphasis. By longitudinally moving the cart unit in the height direction, the multifidus muscle is stimulated uniformly from the vicinity of the cervical vertebra to the vicinity of the sacrum. Then, by adding a jet reciprocating about 1/4 inner circle (90 degrees) of the rotating nozzles 1 and 2, the massage range is gradually expanded from the vicinity of the center of the spine to the next stage.
The next step is to move the nozzle from the inside to the outside along the ribs while moving the upper ribs from the lower ribs (see FIGS. 9f and 9g). The three ribs on the head side are attached in a lateral direction, but the ribs under the ribs are obliquely downward, and it is desirable to move the rotating nozzle according to the shape. At this time, the jet flow from the center fixed nozzle 3 may be stopped.
(Embodiment 2)

  Next, an example of leg massage will be described with reference to FIG. To massage the inside of both legs (see FIG. 10a), a central fixed nozzle can be used. On the other hand, when actively stimulating the outer sides of both legs of the bilateral thigh and triceps surae, the carriage unit 5 is moved vertically with the rotation nozzles 1 and 2 stopped rotating at a specific phase outside. .

  The center fixed nozzle 3 is effective for massaging the muscles on the back side of both legs, such as the greater ankle, semi-tendonoid, and triceps surae. However, if the pelvis is distorted and the top is open, the front part of both legs is large and easily opened to the left and right while spreading the toes to the left and right (see FIG. 12b). Also, the distance between the left and right legs varies greatly between people. Therefore, as it is, it is difficult to massage aiming at specific leg muscles.

  Therefore, the foot is effectively fixed. Even in the conventional configuration, there is one that fixes the foot. However, in the conventional configuration, the vicinity of the metatarsals and wedge-shaped bones of both legs are fixed while being suppressed from both sides. In the present embodiment, in order to effectively massage the muscles on the back inner side of the leg with the central fixed nozzle 3, the main object is to contact the target portion above the central fixed nozzle 3 of the mounting film 9. . Therefore, unlike the prior art, there is no need to suppress the vicinity of the metatarsal bone or the wedge bone from both sides. In the present embodiment, the heel fixing portion 12 is provided and the left and right toes of both feet are not greatly opened, so that the maximum height of the portion corresponding to the heel of the lateral wall surface in the vertical direction corresponds to the toes. The height is 1.5 times or more (see FIG. 13).

With this configuration, the user can easily enter the heel fixing part 12 from the toe side and is difficult to remove during treatment. In addition, a pad is mounted inside the heel fixing portion 12 as shown in FIG. The said pad is arrange | positioned on both horizontal wall surfaces on both sides of a leg as a similar shape with the vertical wall surface of a heel fixing | fixed part.
In the present embodiment, the operation unit 17 is disposed above the heel fixing unit 12. If it is the said position, the person who operates can often operate, without bending a waist. Moreover, about the horizontal wall surface stood perpendicularly to the foot bottom face of the heel fixing | fixed part 12, the holder property is improved by making the maximum height of the location corresponding to a heel larger than the width | variety of a foot bottom face.
(Embodiment 3)

Next, the mounting structure of the horizontal shaft 7 according to the embodiment of the present invention will be described with reference to FIGS. The horizontal shaft 7 is provided with a rotation drive unit 8 and bearings 19 on both sides of the water tank 6 in order to vertically move the cart unit 5 on which the nozzle is mounted in the height direction (see FIG. 7). By rotating the horizontal shaft 7 with the rotation drive unit 8, the cart unit 5 can be moved in the intended direction according to the rotation direction.
In the prior art, a gear mechanism is used for the rotation drive unit. However, waterbed massage patterns are complex and diverse. In particular, in this embodiment, since the central fixed nozzle 3 is used to massage the multifidus muscle, the semi-tendon-like muscle, the triceps surae muscle, etc., it is necessary to reciprocate the cart unit 5 up and down many times. Therefore, in the conventional gear mechanism, vibration due to backlash may occur frequently. The vibration may be transmitted to a user sleeping on the water bed. In particular, when the movement of the carriage unit 5 is switched in the opposite direction, the jet flow from the jet nozzle may be stopped, and vibrations are easily noticed. Therefore, coupled with the complexity of the massage pattern, it is important to reduce the vibration noise. In the present embodiment, by using a magnet coupling for the rotation drive unit 8, it is possible to reduce vibration during the reversing operation of the cart unit 5 that moves vertically on the horizontal shaft 7.

Moreover, when using a magnet coupling, the circumference | surroundings are shielded so that a magnetic influence may not come out outside. Furthermore, in order to eliminate the magnetic influence, it is desirable that the mounting position is 100 mm or more from the mounting film 9, preferably 150 mm or more, below. By separating from the human body as much as possible, unexpected situations can be avoided.
Moreover, the position of the bearing 19 provided in the water tank 6 may shift | deviate slightly from the difference in the thermal expansion coefficient of the horizontal shaft 7 and the water tank 6. FIG. This shift may generate a subtle noise sound when the horizontal axis 7 rotates. Even in this situation, since the coupling side is magnetically coupled, there is little possibility of leaving the horizontal shaft 7 and the coupling side is stable. For this reason, noise noise is less on the magnet coupling (rotation drive unit 8) side than on the bearing 19 side, so it is desirable to arrange the magnet coupling (rotation drive unit 8) on the head side.

Further, in order to supply the water flow supplied by the pump 10 to the nozzle of the carriage unit 5, a water supply hose 11 is disposed inside the water tank 6. The water supply hose 11 has a wire mesh near the surface in order to increase its strength. May be arranged. The magnet of the magnet coupling (rotation drive unit 8) may affect the wire mesh of the water supply hose 11. Therefore, when the water supply hose 11 is routed around the cart unit 5, it is desirable to route it to the opposite side of the magnet coupling (rotation drive unit 8).
Further, in consideration of the convenience when the user gets on and off the water bed, the operation unit 17 is often placed on the head side or the foot side, avoiding the side of the product. In the manufacturing process (when the horizontal shaft 7 is attached), the rotation drive unit 8 (magnet coupling) attached to the horizontal shaft 7 should not be as close as possible to the operation unit 17 so as not to affect the electronic device of the operation unit 17. It is desirable to arrange on the opposite side. In this embodiment, in order to provide the operation part 17 in the upper part of the heel fixing | fixed part 12, a magnet coupling (rotary drive part 8) is arrange | positioned at the head side.

DESCRIPTION OF SYMBOLS 1 Rotating nozzle on the head side 2 Rotating nozzle on the foot side 3 Center fixed nozzle 4 Gear 5 Cart unit 6 Water tank 7 Horizontal shaft 8 Magnet coupling 9 Mounted membrane 10 Pump 11 Water supply hose

Claims (12)

A water tank, a mounting film stretchably stretched on the upper surface of the water tank, a nozzle that applies water pressure to a user on the mounting film, a cart unit that mounts the nozzle, and a longitudinal direction of the water tank. and a horizontal shaft to be movable in a direction, the nozzles are arrangement on the left and right in the lateral direction of the tub, a rotating nozzle rotating on the carriage unit, a central stationary nozzle which is fixed on the carriage unit The rotating nozzle has left and right rotating nozzles with respective jet ports, the jet ports are attached at a predetermined distance from the rotating shaft on the carriage unit, and the center fixed nozzle is It has two spouts and is fixed near the center of the rotary nozzle to massage the multifidus of the human body, and the distance between the two spouts is the average distance between the left and right multifidus of the human body become as equivalent cormorant Tabeddo type massage device. The left and right rotary nozzles have two sets in the longitudinal direction of the water tank, and the distance from the rotary shaft of the rotary nozzle on the head side to the jet port is smaller than the same distance of the rotary nozzle on the foot side. The water bed type massage apparatus according to claim 1. The water bed type massage apparatus according to claim 2, wherein the center fixed nozzle is provided in the vicinity of the center of a rotating nozzle having two sets in the longitudinal direction of the water tank. The left and right rotating nozzles rotate at the same rotational angular velocity in opposite phases, and the closest approach distance between the jet ports of the left and right rotating nozzles on the head side is larger than the same distance on the foot side. Or the water bed type massage apparatus of 3. The water bed type massage device according to any one of claims 2 to 4, wherein a rotation angular velocity of the foot side rotation nozzle is different from a rotation angular velocity on the head side. The water bed type massage device according to any one of claims 1 to 5, wherein the central fixed nozzle has a jet pressure larger than a jet pressure of the rotary nozzle when used simultaneously with the rotary nozzle. The water bed type massage apparatus according to any one of claims 1 to 6, wherein a diameter of the jet port of the central fixed nozzle is smaller than a diameter of the jet port of the rotating nozzle. It said central fixed nozzles of the rotary nozzle of the jet port and foot side of the jet port of the closest distance, the rotary nozzle of the left and right foot side between the jet port distance and becomes as equal the following claims 2-7 The water bed type massage apparatus of any one of Claims. The diameter of the rotary nozzle on the head side and the same diameter on the foot side are made different, and the center fixed nozzle is arranged near the center of the four nozzles and on the side where the diameter of the rotary nozzle is small. The water bed type massage device according to any one of claims 2 to 8 . The water bed type massage device according to any one of claims 1 to 9 , wherein a rotational angular velocity of the rotary nozzle is different depending on whether or not the jet flows from the center fixed nozzle. The water bed according to any one of claims 1 to 10 , wherein when a user's upper body is massaged, the use frequency of the central fixed nozzle in the first half step is increased compared to the same use frequency in the second half step. Type massage device. The water bed type massage according to any one of claims 1 to 11, wherein when the upper body of the user is massaged, a period for driving only the central fixed nozzle is provided for a predetermined time or more before driving the rotary nozzle. apparatus.