JP2010022632A - Hydraulic massage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hydraulic massage device greatly changing feeling of stimulation. <P>SOLUTION: A predetermined face of a body housing 1 is defined as a massage face for supporting a user M, and a jet liquid is jetted from a jet nozzle 12A (12B) disposed inside the body housing 1 towards the massage face. The opening area of the jet nozzle 12A (12B) is configured to be changeable. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid massage apparatus.

  Some massage apparatuses that massage the human body utilize liquid ejected from an ejection nozzle, that is, an ejection liquid. In this type of liquid massage device, basically, the upper opening of the main body housing is covered with a support sheet, and the jetting liquid is directed from the jet nozzle disposed in the main body housing to the lower surface of the support sheet. By spraying, the user (sometimes called a patient) lying on the support sheet is stimulated.

In the liquid massage apparatus, there are some in which many injection nozzles are fixedly arranged according to the stimulation site for the user. In addition, as shown in Patent Document 1, an injection nozzle (a jetting opening) is provided at a position offset with respect to a pair of rotating bodies that rotate about the vertical axis, and the pair of rotating bodies is supported by a support sheet. Some of them are movable in the longitudinal direction, and can be stimulated over a wide range by a small number of injection nozzles.
JP 2004-180981 A

  By the way, depending on the user, there is a difference in the preference of stimulation received from the jetting liquid. For this reason, in the conventional liquid massage device, it is the actual situation that the feeling of irritation is changed by changing the injection pressure or the injection amount of the injection liquid, but there is a limit to greatly changing the feeling of irritation There is.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a liquid massage apparatus that can greatly change the feeling of stimulation.

In order to achieve the above object, the following solution is adopted in the present invention. That is, as described in claim 1 in the claims,
In the liquid massage apparatus in which the predetermined surface of the main body housing is a massage surface that supports the user, and the liquid for injection is ejected from the spray nozzle disposed in the main body housing toward the massage surface.
The opening area of the injection nozzle can be changed,
It is like that. According to the above solution, the difference in the opening area of the injection nozzle is greatly different as a sense of stimulation. That is, the diameter of the tip of the injection nozzle is generally selected within a range of 11 mm to 15 mm, but when using a small diameter (small opening area) injection nozzle, a piercing sensation (sharp irritation) When a jet nozzle having a large diameter (large opening area) is used, a solid feeling (weighted stimulation feeling) is given. In this way, by making it possible to change the opening area of the injection nozzle, it is possible to greatly change the feeling of stimulation. Of course, by combining the change in the opening area of the injection nozzle and the change in the injection pressure that has been conventionally performed, it is possible to change the sense of stimulation more finely.

A preferred mode based on the above solution is as described in claim 2 and the following claims. That is,
The massage surface is set so as to extend substantially horizontally, and a rotating body that is rotationally driven around a predetermined rotation axis extending in the vertical direction is disposed below the massage surface,
The upper part of the rotating body includes a first member in which a first opening is formed, and a second member in which a plurality of second openings having different opening areas are formed at intervals in the circumferential direction of the rotating body, It is configured as a laminated structure in the vertical direction by
Either one of the first member and the second member is set on the upper side of the other member so as to always rotate integrally with the rotating body, and the other member is in relation to the one member. Relative rotation is possible,
By rotating the other member relative to the one member, one second opening of the plurality of second openings is selectively aligned with the first opening, The jet nozzle for jetting the jetting liquid is constituted by the first opening and the second opening aligned with each other,
Each of the plurality of second openings has an opening area that is equal to or smaller than the opening area of the first opening, and the opening area when the first opening and the second opening are aligned is substantially the same. The opening area of the second opening that is aligned with the first opening.
(Corresponding to claim 2). In this case, the opening area of the rotary injection nozzle can be changed with a simple configuration.

A supply path for supplying the jetting liquid toward the first opening and the second opening is configured in the rotating body,
The other member is arranged so as to move in the vertical direction with respect to the one member,
The other member constitutes the upper wall surface of the supply path formed in the rotating body, receives the pressure of the jetting liquid supplied into the rotating body, and is pressed against the one member while the rotation Displaced to a lower position by stopping the supply of the jetting liquid into the body, and is rotatable relative to the one member.
(Corresponding to claim 3). In this case, it is possible to switch between the state in which one member and the other member rotate integrally and the state in which the other member can rotate relative to each other by effectively using the pressure of the jetting liquid without using a separate actuator.

The second member is provided with a locking pin that always protrudes into the first opening formed in the first member,
The first opening and the second opening are aligned when the locking pin comes into contact with the inner peripheral edge on one side in the circumferential direction of the rotating body among the inner peripheral edges of the first opening,
The first opening and the second opening are aligned when the locking pin comes into contact with the inner peripheral edge on the other circumferential side of the rotating body in the inner peripheral edge of the first opening.
(Corresponding to claim 4). In this case, the relative rotation in both directions can be restricted by effectively using the first opening.

The rotating body is set to be movable along the massage surface,
The second opening is formed in the other member located on the lower side, and the first opening is formed on the one member located on the upper side,
The locking pin provided on the other member extends upward through the first opening;
The main body housing holds a locking member that is engaged with the locking pin according to the rotation of the rotating body and applies rotational resistance to the other member when the rotating body moves to a predetermined position. Being
(Corresponding to claim 5). In this case, even when the first member and the second member (one member and the other member) are rotated even when the pressure of the jetting liquid does not act, the relationship obtained with the rotation of the rotating body. The rotation resistance obtained by the engagement between the locking pin and the locking member can prevent the rotation and align the desired second opening with the first opening.

First locking means for restricting relative rotation of the other member in the forward direction by a predetermined amount or more relative to the one member, and restricting relative rotation of the other member in the reverse direction by a predetermined amount or more. A second locking means,
In each of the first relative rotational position locked by the first locking means and the second relative rotational position locked by the second locking means, the first opening with respect to the first opening. One of the two openings is aligned,
(Corresponding to claim 6). In this case, a desired opening area can be obtained at the position where the relative rotation is restricted by the locking means, which is preferable in preventing the situation of the opening area variation due to the displacement of the relative rotation position. .

The first relative rotational position is obtained by rotating the rotating body in a predetermined direction without ejecting the ejecting liquid, and the first rotation is performed by rotating the rotating body in a direction opposite to the predetermined direction. 2 relative rotational position,
The first relative rotational position or the second relative rotational position is maintained by starting the ejection of the ejection liquid after setting the first relative rotational position or the second relative rotational position.
(Corresponding to claim 7). In this case, a desired relative rotational position can be reliably held by effectively using the pressure of the jetting liquid.

A plurality of the second openings provided in the one member located on the upper side;
Each of the plurality of second openings is set so that the opening area gradually decreases as it goes upward.
This is done (corresponding to claim 8). In this case, the directivity of the injection nozzle can be enhanced while sufficiently securing the amount of the injection liquid flowing into the second opening by using the second opening serving as the discharge port of the injection nozzle.

A switching member for sweeping the discharge port of the spray nozzle is provided;
In the switching member, a plurality of openings each having an opening area that is equal to or less than an opening area of the discharge port of the spray nozzle and having different opening areas are formed.
By changing the position of the switching member, one of the plurality of openings is selectively aligned with the injection nozzle.
Yoshieda 9 correspondence). In this case, the opening area can be changed by using only one injection nozzle.

The spray nozzle is configured by arranging a plurality of divided spray nozzles having different opening areas from each other close to each other,
Switching means is provided for selectively supplying a jetting liquid only to any one of the plurality of split spray nozzles arranged close to each other.
(Corresponding to claim 10). In this case, by substantially configuring one injection nozzle using a plurality of divided injection nozzles, it is preferable to always optimally inject the injection liquid regardless of the difference in the opening area of the injection nozzles. .

  According to the present invention, the opening area of the injection nozzle can be changed to greatly change the feeling of stimulation given to the user.

  1 and 2, a main body housing 1 is fixed and installed on a frame F, and the main body housing 1 is formed in a long and narrow tank shape with an upper opening made of, for example, fiber reinforced plastic. The main body housing 1 is disposed substantially horizontally, and its upper opening 1 a is liquid-tightly covered with a support sheet 2. On the support sheet 2, a user (patient) M receiving massage is held (supported) in a lying posture (a lying posture) such as a chin. That is, the support sheet 2 is sized such that the user M can be supported at least in a supine state. The support sheet 2 can be made of an appropriate material. For example, a structure in which a mesh-like (lattice-like) fiber reinforced sheet is covered with rubber (for example, silicon rubber), or a mesh-like (lattice-like) structure on the lower surface of the rubber sheet. The fiber reinforced sheet can be laminated.

  In the main body housing 1, a jetting liquid (usually hot water) is stored as a massage liquid. In the embodiment, a structure in which the main body housing 1 is filled with the jetting liquid and does not have a free surface is adopted. The bottom wall (bottom) of the main body housing 1 is formed with a narrow groove-shaped reservoir 3 extending substantially horizontally over the entire length in the longitudinal direction. A pair of left and right traveling rails 4 extending substantially horizontally in the longitudinal direction of the main body housing 1 are disposed and fixed at the bottom of the main body housing 1 at the upper opening edge of the reservoir 3. A traveling cart 5 is configured to travel on the traveling rail 4, and the traveling wheels are denoted by reference numeral 6.

  A drive chain 7 is disposed in the main body housing 1 along the traveling rail 4 at a position slightly higher than the traveling rail 4. The drive chain 7 extends almost horizontally and is an endless type. That is, the drive chain 7 is wound around a pair of sprockets 8 and 9 that are rotatably held at the longitudinal ends of the main body housing 1. The sprocket 8 is a drive sprocket, and the sprocket 9 is a driven sprocket, and the drive sprocket 8 is driven by a drive motor (not shown) installed on the side of the main body housing 1 via an interlocking mechanism (not shown). . The traveling carriage 5 is connected and fixed to the drive chain 7, and the traveling carriage 5 is driven to reciprocate by rotating the sprocket 8 forward and backward by a motor. By controlling the drive of the motor, the reciprocating drive range of the traveling carriage 5 can be arbitrarily changed, and the traveling carriage 5 can be stopped at an arbitrary traveling position. In addition, as a drive means for driving the traveling carriage 5 to travel, an appropriate structure can be adopted in addition to the chain type shown in the embodiment.

  As will be described later, the traveling carriage 5 is provided with a pair of left and right injection nozzles 12A and 12B. In order to inject massage liquid from the injection nozzles 12 </ b> A and 12 </ b> B, a pump 14 driven by a motor (not shown) is provided on the side of the main body housing 1. The pump 14 pumps up the massage liquid in the reservoir 3 and pumps the spray liquid to the spray nozzles 12A and 12B via a flow rate (pressure) control valve (not shown). Note that the injection liquid pumping pipe extending from the pump 14 is branched into two on the downstream side of the flow rate control valve, and as shown in FIG. 3, one branch pipe 15A is connected to one injection nozzle 12A. The other branch pipe 15B is connected to the other injection nozzle 12B. The branch pipes 15 </ b> A and 15 </ b> B are flexible pipes that can be bent over a predetermined length (for example, a bellows-like pipe made of synthetic resin) so as to respond to changes in the travel position of the travel cart 5. Yes. Further, the pumping capacity of the pump 14, that is, the injection pressure from the injection nozzles 12A and 12B is changed by changing the control voltage applied to an inverter (not shown) for controlling (frequency control) the pump 14 (motor). It has become so.

  The jetting liquid jetted from the jet nozzles 12A and 12B collides with the lower surface of the support sheet 2, and this collision acts on the user M on the support sheet 2 as a massage stimulus. The jetting liquid colliding with the support sheet 2 is dropped and jetted again from the jet nozzles 12A and 12B.

  Next, the configuration near the injection nozzles 12A and 12B will be described in detail with reference to FIG. First, a pair of left and right support shafts 32 </ b> A and 32 </ b> B extending in the vertical direction are fixed to the upper surface of the traveling carriage 5. The support shafts 32A and 32B are tubular, and the branch pipe 15A or 15B described above is connected to the lower part thereof.

  A pair of left and right drums 36A and 36B are rotatably held on the support shafts 32A and 32B via bearing members 34A and 34B. Each of the drums 36A and 36B is a space portion 37A or 37B whose inside is sealed. Each of the drums 36A and 36B has a circular outer diameter and functions as a kind of gear having a tooth profile 38A or 38B formed on the outer peripheral surface thereof. The drums 36 </ b> A and 36 </ b> B serving as gears are meshed with each other and when one of the drums 36 </ b> A and 36 </ b> B is rotated, the other is also rotated.

  The above-described injection nozzles 12A and 12B are fixed to the upper surfaces of the respective drums 36A and 36B at positions eccentric to the rotation center. The spray nozzles 12A and 12B are always in communication with the space portions 37A and 37B in the drums 36A and 36B. Thereby, the jetting liquid supplied from the pipes 15A and 15B is jetted upward from the jet nozzles 12A and 12B after passing through the support shafts 32A and 32B and the space portions 37A and 37B. Then, according to the rotation of the drums 36A and 36B, the positions of the ejection nozzles 12A and 12B are changed, and the ejection position of the ejection liquid for the user M is changed.

  In order to rotate the drums 36A and 36B, a worm gear 42 is fixed to the lower surface of one drum 36B. The worm gear 42 is fitted so as to be rotatable relative to the support shaft 32B. A worm 44 is engaged with the worm gear 42. The worm 44 is rotatably held on the drum 36B using a bracket (not shown). The worm 44 is held so as to rotate integrally with a rotation shaft 46 extending in the longitudinal direction of the main body housing 1 and to be slidable in the axial direction. The rotary shaft 46 is rotatably held by the main body housing 1. As a result, when the rotating shaft 46 is rotated by driving means such as a motor provided outside the main body housing 1, the worm 44 is also rotated, whereby the worm gear 42, that is, the drum 36B is rotated, and the drum 36B is rotated. Accordingly, the other drum 36A is also rotated. When the traveling carriage 5 moves, the worm 44 is slid with respect to the rotation shaft 46, so that the drums 36A and 36B can be rotated regardless of the position of the traveling carriage 5.

  Next, the details of the injection nozzles 12A and 12B will be described with reference to FIGS. 4 to 12. However, since the pair of left and right injection nozzles 12A and 12B (drums 36A and 36B) are formed in a bilaterally symmetrical structure, The description will be given focusing on one injection nozzle 12A. First, the drum 36 </ b> A as a rotating body has a divided structure of a main body member 50 </ b> A opened upward, a first member 51 </ b> A, and a second member 52 </ b> A disposed below the first member 51 </ b> A. . The first member 51A is integrated with the main body member 50A by the fixing tool 53 and covers the upper opening of the main body member 50A. The upward movement of the first member 51A (that is, the drum 36A) is restricted by a locking plate 55 fixed to the upper surface of the support shaft 32A by a fixing tool 54.

  The second member 52A can rotate relative to the main body member 50A and the first member 51A, and can be slightly displaced (a few millimeters) in the vertical direction. Usually, while being positioned below by its own weight, when the jetting liquid is supplied into the space 37A, the liquid is raised under pressure and is brought into pressure contact with the first member 51A. The first member 51A and the first member 51A are rotated together.

  One first opening 61A is formed in the first member 51A. The second member 52A is formed with two second openings 62A and 63A at a small interval in the circumferential direction. The opening areas (diameters) of the second openings 62A and 63A are set to be different from each other, and are smaller than the opening area (diameter) of the first opening 61A. More specifically, for example, the diameter of 62A in the second opening is 12 mm, the diameter of 63A is 14 mm, and the diameter of the first opening 61A is 18 mm. It should be noted that the centers of the openings 61A, 62A, and 63A are set so as to be positioned in the same arc shape with the support shaft 32A serving as the rotation center as the center.

  When the lower second member 52A is rotated relative to the upper first member 51A in a predetermined circumferential direction, as shown in FIG. 9, the first opening 61A has the smaller opening area. (The second opening 63A having the larger opening area is closed by the first member 51A). The aligned openings 61A and 62A substantially form the injection nozzle 12A, and the opening area is substantially the opening area of the second opening 62A (the opening area of the injection nozzle 12A is small).

  When the lower second member 52A is rotated relative to the upper first member 51A in a direction opposite to the predetermined circumferential direction, the first opening 61A has a large opening area as shown in FIG. Is aligned with the second opening 63A (the second opening 62A having the smaller opening area is closed by the first member 51A). The aligned openings 61A and 63A substantially form the injection nozzle 12A, and the opening area is substantially the opening area of the second opening 63A (the opening area of the injection nozzle 12A is large).

  The second member 52A is integrated with a locking pin 70A protruding upward between the two second openings 62A and 63A. The locking pin 70A always protrudes into the first opening 61A formed in the first member 51A. That is, at the first relative rotation position shown in FIG. 9, the locking pin 70A comes into contact with the inner peripheral edge portion on one circumferential side of the first opening 61A, and further relative rotation is restricted. Further, in the second relative rotation position shown in FIG. 10, the locking pin 70A comes into contact with the inner peripheral edge portion on the other circumferential side of the first opening 61A, and further relative rotation is restricted.

  When the jetting liquid is supplied into the space 37A, the second member 52A is pressed against the first member 51A in response to the pressure, and the relative rotation positions (relative rotations in FIG. 9 or FIG. 10). Position) is held. When the pressure of the jetting liquid does not act in the space 37A, the press-contacting action of the second member 52A with respect to the first member 51A is released, and the second member 52A easily rotates relative to the first member 51A. It is possible. When the drum 36A (the main body portion 50A and the first member 51A) is rotated in a predetermined direction (for example, the forward rotation direction) via the worm 44 in a state where the relative rotation is possible, the second member 52A is brought into place on the spot by inertia. In order to stay, the first member 51A and the second member 52A are rotated relative to each other, for example, at a first relative rotation position shown in FIG. By supplying the jetting liquid to the space 37A after reaching the first relative rotational position, the first relative rotational position is continuously maintained (with the spray nozzle 12A having a small opening area). Spray liquid for spraying).

  On the other hand, when the first member 51A and the second member 52A are rotatable relative to each other, the drum 36A (the main body 50A) is rotated in a direction (reverse direction) opposite to the predetermined direction via the worm 44. Since the second member 52A tries to stay in place due to inertia, the first member 51A and the second member 52A are rotated relative to each other, for example, at the second relative rotational position shown in FIG. . By supplying the jetting liquid to the space portion 37A after reaching the second relative rotation position, the second relative rotation position continues to be maintained (with the injection nozzle 12A having a large opening area). Spray liquid for spraying).

  A manual switch S1 for selecting the size of the opening area of the injection nozzles 12A and 12B is connected to the controller CB (see FIG. 1) that controls the rotation and position change of the drums 36A and 36B. The first relative rotational position or the second relative rotational position described above is selected (set) so as to have an opening area corresponding to the operation of the manual switch S1, and then the ejection liquid is ejected. become.

  In the embodiment shown in FIGS. 3 to 12, the thickness of the first member 51 </ b> A (the thickness of the portion constituting the injection nozzle 12 </ b> A) is set to be thin, and therefore the first opening 51 </ b> A (the inner diameter thereof). Has the same diameter over the entire length in the axial direction. On the other hand, since the thickness of the second member 52A (the thickness of the portion constituting the jet nozzle 12A portion) is set to be thick, the second openings 62A and 63A (the inner diameter thereof) are directed upward. It is set so as to be gradually reduced (trumpet shape, tapered in cross section) so as to enhance the directivity of the injection nozzle 12A. In the embodiment, the minimum diameter (the diameter at the upper end position) of the second opening 62A having a small opening area is set to 12 mm, for example, at an angle of 25 degrees (the angle θ1 shown in FIG. 8 is 25 degrees). It is set to spread. Further, the minimum diameter (the diameter at the upper end position) of the second opening 63A having a large opening area is set to 14 mm, and is spread downward, for example, by an angle of 13 degrees (angle θ2 shown in FIG. 7 is 25 degrees). Is set. Such a setting is preferable for enhancing the directivity of the jetting liquid ejected from the second opening 62A and 63A while sufficiently securing the inflow amount of the jetting liquid to the second openings 62A and 63A. The angle θ1θ2 is preferably set to be larger as the diameters of the second openings 62A and 63A are smaller in order to secure a sufficient inflow amount. For example, θ1 and θ2 are each 90 degrees. Can be made to have a very large angle.

  In FIG. 3, components corresponding to the drum 36 </ b> A in the drum 36 </ b> B are indicated by using a symbol “B” instead of a symbol “A”. However, since the rotation directions of the drums 36A and 36B are opposite to each other, in the plan view, the drum 36A has a small opening area in the counterclockwise direction of the second opening 63A having a large opening area. The second opening 62A is positioned. In the drum 36B, the second opening 62B having a small opening area in the clockwise direction of the second opening 63B having a large opening area is positioned. That is, when the second opening 62A is aligned with the first opening 61A, the second opening 62B is aligned with the first opening 61B, and similarly, the second opening 63A is aligned with the first opening 61A. When this is done, the second opening 63B is aligned with the first opening 61B.

  FIGS. 13 to 18 show a second embodiment of the present invention. The same components as those in the above-described embodiment are denoted by the same reference numerals, and redundant description thereof will be omitted (this will be described in the following embodiments). The same for). Further, in the following description, the description will be given focusing on one drum 36A. First, in the present embodiment, the first member 51A having the first opening 61A is positioned on the lower side, while the second member 52A having the second openings 62A and 63A is positioned on the upper side. The upper second member 52A is integrated with the main body member 50A. The first member 51A located on the lower side is slightly displaceable in the vertical direction and is relatively rotatable with respect to the second member 52A located on the upper side.

  FIG. 16 shows a first relative rotational position in which the first opening 61A is aligned with the second opening 63A having a large opening area. FIG. 17 shows a second relative rotational position in which the first opening 61A is aligned with the second opening 62A having a small opening area.

  In the present embodiment, as shown in FIG. 18, the locking pin 71A (corresponding to 70A in the embodiment) is integrated by protruding downward from the second member 52A. Further, the end portions in the circumferential direction of the first opening 61A are extended in the circumferential direction to form escape grooves 73 and 74 into which the locking pins 71A are inserted. In the present embodiment, since the thickness of the second member 52A located on the upper side is increased, each of the second openings 62A63A formed therein has a trumpet shape that gradually decreases in diameter toward the upper side ( The cross section is tapered.

  19 to 21 show a third embodiment of the present invention. In the present embodiment, as in the first embodiment, the second member 52A located on the lower side is provided with the second openings 62A and 63A and the locking pins 70A (70B). ing. In the present embodiment, the locking pins 70A and 70B extend through the first opening 61A formed in the first member 51A and extend further upward than the first member 51A.

  A plate-like locking member 75 is arranged to extend substantially horizontally so as to be positioned above the first members 51A and 51B. The locking member 75 is fixed and held to the main body housing 1 at one end thereof. The locking member 75 is provided at the origin position where the carriage 5 is located at the stroke end on one side in the movement direction. In the embodiment, the origin position is set to a position where the user M is not massaged (ejection of the ejection liquid). Then, on the lower surface of the locking member 75, when the carriage 5 is at the origin position, a locking portion 76A is formed to protrude corresponding to the locking pin 70A, and the locking portion corresponding to the locking pin 70B. 76B is protrudingly formed. Each locking portion 76A, 76B is a hemispherical convex portion, and correspondingly, the upper surface of each locking pin 70A, 70B is formed to be a hemispherical concave portion.

  When the cart 5 is at the origin position and the drums 36A and 36B are rotated, the locking pin 70A is slightly spherically fitted to the locking portion 76A and receives a locking action at a certain rotational position. The locking pin 70B is slightly spherically fitted to the locking portion 76B and receives a locking action. This locking action acts as a rotational resistance of the second members 52A and 52B. However, it is set so that the spherical fitting between the locking pin 70A (70B) and the locking portion 76A (76B) is easily released when a rotational force of a certain level or more is applied. In FIG. 21, although the boundary between the locking portion 76A and the locking pin 70A is depicted as being separated from each other for the sake of clarity, they are actually in contact with each other.

  Now, when the drums 36A and 36B are rotationally driven in a predetermined direction with the carriage 5 at the origin position, even if the second member 52A rotates with the first member 51A, the locking pin 70A (70B ) Is locked to the locking portion 76A (76B), so that the second member 52A is prevented from rotating around the first member 51A. As a result, for example, the second opening 62A as shown in FIG. The selected state can be surely secured. By rotating the drums 36A and 36B in the direction opposite to the predetermined direction, for example, the state where the second opening 63A as shown in FIG. 10 is selected is reliably ensured. Therefore, after this, while continuing to rotate the drums 36A and 36B, the carriage 5 may be moved from the origin position to change the part to be massaged. In addition, if the locking pin 70A (70B) and the locking part 76A (76B) can give the resistance of the rotation direction to the second member 52A, the shape of the contact part is the case where the concave-convex relationship is shown in the embodiment. Appropriate settings can be selected, such as a reverse relationship to (can be frictional resistance).

  FIG. 22 shows a fourth embodiment of the present invention. In the present embodiment, in the case where the second openings 62A and 63A are provided in the second member 52A located on the upper side (the same applies to 52B), an example of setting a preferable cross-sectional shape of the second openings 62A and 63A is shown. is there. That is, the second opening 62A has a trumpet shape (tapered cross section) so that the lower end portion of the second opening is greatly expanded downward, and the angle θ3 is made as large as possible (90 degrees in the embodiment). Yes. The second opening 62A is formed in a trumpet shape in two stages in the axial direction. That is, the minimum opening area at the upper end (diameter at the position indicated by the symbol β1) is, for example, 12 mm, and the maximum opening area at the lower end (diameter at the position indicated by the symbol β3) is 30 mm. (Diameter at the position indicated by the symbol β2) is 20 mm. From the upper end to the intermediate position, as described above, the angle is relatively small (for example, about 13 to 25 degrees), but from the intermediate position to the lower end position, for example, 90 degrees (θ3). = 90 degrees) and so on.

  By setting as described above, a large amount of the jetting liquid flows into the second opening 62A can be secured, and the directivity of the jetting liquid ejected from the second opening 62A can be sufficiently increased. The same applies to the other second opening 63A, and the same applies to the second openings 62B and 63B in the other drum 36B. Although not shown, the diameter of the first opening 61A located on the lower side is set to have an opening area larger than the opening area of the lower ends of the second openings 62A and 63A. As shown in FIG. 22, by setting the second openings 62A and 63A in a two-step trumpet shape, the second member 52A is set thin, while the inflow side opening of the second openings 62A and 63A. This is preferable for ensuring a large angle θ3, for example, 90 degrees. Note that the setting of the trumpet-shaped opening as shown in FIG. 22 can be similarly applied to the first opening 61A (61B).

  FIG. 23 shows a fifth embodiment of the present invention. In this embodiment, the injection nozzle 80 is fixed. That is, many injection nozzles are fixedly arranged over a wide area range of the main body housing 1 (support sheet 2). For example, the injection nozzles 80 are fixedly disposed at positions corresponding to a neck, left and right shoulders, left and right backs, left and right waists, left and right thighs, left and right calves, and the like. FIG. 19 focuses on one of the injection nozzles 80, and the other injection nozzles are similarly configured.

  In the present embodiment, a switching member 81 is provided for each injection nozzle 80. The switching member 80 has a plate shape and can swing around the axis α. The switching member 81 is disposed so as to sweep the outlet of the injection nozzle 80 (upper end injection port), and a plurality of openings 85, 86, 87 are formed in an arc shape centered on the axis α. . The diameter of the opening 85 is the largest, the diameter of the opening 86 is the next largest, and the diameter of the opening 87 is the smallest. The diameter of the opening 85 is substantially the same as the opening area (the diameter of the discharge port) of the injection nozzle 80, but the diameters of the other openings 86 and 87 are set smaller than the diameter of the injection nozzle 80. ing.

  Only one of the openings 85, 86, 87 is aligned with the injection nozzle 80 by changing the swing position about the center α of the switching member 81 by the actuator 88 controlled by the controller CB. FIG. 23 shows a state in which the opening 85 is aligned with the injection nozzle 80. At this time, the opening area of the injection nozzle 80 is the largest. When the opening 86 is aligned with the injection nozzle 80, the substantial opening area of the injection nozzle 80 is medium, and when the opening 87 is aligned with the injection nozzle 80, the substantial opening area of the injection nozzle 80 is The smallest. The number of openings formed in the switching member 81 can be set to an appropriate number of 2 or 4 or more.

  FIG. 24 shows a sixth embodiment of the present invention. In the present embodiment, one injection nozzle 90 is substantially constituted by a plurality (three in the embodiment) of divided injection nozzles 90A, 90B, and 90C that are arranged close to each other. That is, the injection nozzle 80 shown in FIG. 19 is configured by the divided injection nozzles 90A to 90C. The diameters (opening areas) of the divided injection nozzles 90A, 90B, and 90C are set to be different from each other, and are set to 90A, 90B, and 90C in order from the larger opening area.

  Each of the divisions 90A to 90C is connected to a branch path 92A, 92B or 92C branched from the common path 91 of the jetting liquid. An on-off valve 93A is connected to the branch path 92A, an on-off valve 93B is connected to the branch path 92B, and an on-off valve 93C is connected to the branch path 92C. By opening only one of the on-off valves 93A to 93C controlled by the controller CB (the other on-off valves are closed), any one of the divided injection nozzles 90A, 90B, 90C is divided. The ejection liquid is ejected only from the ejection nozzle. By changing the divided injection nozzles to which the injection liquid is injected, the opening area of the injection nozzle 90 is substantially changed.

  Although the embodiment has been described above, the present invention is not limited to this, and includes the following cases, for example. The liquid massage device, particularly the main body housing 1, is not limited to a bed type, but may be of an appropriate type such as a chair type. Further, the liquid massage device according to the present invention may be of a type having a free surface without the main body housing 1 being filled with the jetting liquid (in the case of having a free surface, the jet nozzles 12A and 12B are The liquid may be immersed in the jetting liquid, or may be exposed upward from (the free surface of) the jetting liquid). For the driving of the traveling carriage 5, that is, the injection nozzle 12, an appropriate method such as a method using a screw rod and a nut screwed to the screw rod can be adopted instead of the chain.

  The locking means for changing the relative rotational position of the first member 51A and the second member 52 is provided on the opposite side in the radial direction of each member 51A, 52A with respect to the opening (61A, 62A, 63A), etc. Can be set at an appropriate position. Further, the locking pins 70A (71A) can be provided separately for the relative rotation restriction in one direction and for the relative rotation restriction in the other direction. In the embodiment shown in FIGS. 3 and 13, an actuator may be separately mounted on the drums 36 </ b> A and 36 </ b> B, and the opening area of the injection nozzles 12 </ b> A and 12 </ b> B may be changed by this actuator. It is also possible to use a pressure-actuated type).

1 is an overall plan view showing an embodiment of the present invention. FIG. 2 is a side sectional view of FIG. 1. Sectional drawing which shows the injection nozzle vicinity in detail. The top view which shows an example of the 1st member in which the 1st opening was formed. FIG. 5 is a cross-sectional view corresponding to line X5-X5 in FIG. 4. The top view which shows an example of the 2nd member in which several 2nd opening was formed. FIG. 7 is a cross-sectional view corresponding to line A-C in FIG. 6. FIG. 7 is a cross-sectional view corresponding to the line AB in FIG. 6. The partial cross section top view which shows the relative rotational position aligned with the 2nd opening by which the 1st opening was made into the small opening area. The partial cross section top view which shows the relative rotational position aligned with the 2nd opening by which the 1st opening was made into the large opening area. FIG. 10 is a cross-sectional view corresponding to line X11-X11 in FIG. 9; FIG. 10 is a cross-sectional view corresponding to line X12-X12 in FIG. 9; The principal part sectional view showing the 2nd embodiment of the present invention. The top view which shows an example of the 2nd member in which 2nd opening was formed in 2nd Embodiment. The top view which shows an example of the 1st member in which 1st opening was formed in 2nd Embodiment. In the second embodiment, a partial cross-sectional plan view showing a relative rotation position aligned with a second opening in which the first opening has a large opening area. In the second embodiment, a partial cross-sectional plan view showing a relative rotation position aligned with a second opening in which the first opening has a small opening area. FIG. 18 is a cross-sectional view corresponding to line X18-X18 in FIG. Sectional drawing which shows the principal part which shows the 3rd Embodiment of this invention. The principal part top view which looked at the locking member shown in FIG. 19 from upper direction. The principal part enlarged side view which expands and shows the engagement state of a locking member and a locking pin. The principal part sectional view showing the 4th embodiment of the present invention. The principal part top view which shows the 3rd Embodiment of this invention. The principal part systematic diagram which shows the 4th Embodiment of this invention.

M: User CB: Controller 1: Main body housing 2: Support sheet 7: Drive chain (for travel drive)
12A, 12B: Injecting nozzle 14: Pump (for injecting liquid pressure)
32A, 32B: Support shaft (rotation center)
36A, 36B: Drums 37A, 37B: Space portion (path of the jetting liquid)
38A: 38B: Tooth profile (for rotation)
42: Worm (for rotation)
46: Rotating shaft 50A: Main body member 51A: First member 52A: Second member 61A: First opening 62A: Second opening 63A: Second opening 70A: Locking pin 71A: Locking pin 80: Injection nozzle (Fig. 19)
81: Switching members 85, 86, 87: Opening (opening area difference)
88: Actuator 90: Injection nozzle (FIG. 20)
90A, 90B, 90C: divided injection nozzles 92A, 92B, 92C: divided paths 93A, 93B, 93C: on-off valves

Claims (10)

In the liquid massage apparatus in which the predetermined surface of the main body housing is a massage surface that supports the user, and the liquid for injection is ejected from the spray nozzle disposed in the main body housing toward the massage surface.
The opening area of the injection nozzle can be changed,
A liquid massage device characterized by that. In claim 1,
The massage surface is set so as to extend substantially horizontally, and a rotating body that is rotationally driven around a predetermined rotation axis extending in the vertical direction is disposed below the massage surface,
The upper part of the rotating body includes a first member in which a first opening is formed, and a second member in which a plurality of second openings having different opening areas are formed at intervals in the circumferential direction of the rotating body, It is configured as a laminated structure in the vertical direction by
Either one of the first member and the second member is set on the upper side of the other member so as to always rotate integrally with the rotating body, and the other member is in relation to the one member. Relative rotation is possible,
By rotating the other member relative to the one member, one second opening of the plurality of second openings is selectively aligned with the first opening, The jet nozzle for jetting the jetting liquid is constituted by the first opening and the second opening aligned with each other,
Each of the plurality of second openings has an opening area that is equal to or smaller than the opening area of the first opening, and the opening area when the first opening and the second opening are aligned is substantially the same. The opening area of the second opening that is aligned with the first opening.
A liquid massage device characterized by that. In claim 2,
A supply path for supplying the jetting liquid toward the first opening and the second opening is configured in the rotating body,
The other member is arranged so as to move in the vertical direction with respect to the one member,
The other member constitutes the upper wall surface of the supply path formed in the rotating body, receives the pressure of the jetting liquid supplied into the rotating body, and is pressed against the one member while the rotation Displaced to a lower position by stopping the supply of the jetting liquid into the body, and is rotatable relative to the one member.
A liquid massage device characterized by that. In claim 3,
The second member is provided with a locking pin that always protrudes into the first opening formed in the first member,
The first opening and the second opening are aligned when the locking pin comes into contact with the inner peripheral edge on one side in the circumferential direction of the rotating body among the inner peripheral edges of the first opening,
The first opening and the second opening are aligned when the locking pin comes into contact with the inner peripheral edge on the other circumferential side of the rotating body in the inner peripheral edge of the first opening.
A liquid massage device characterized by that. In claim 4,
The rotating body is set to be movable along the massage surface,
The second opening is formed in the other member located on the lower side, and the first opening is formed on the one member located on the upper side,
The locking pin provided on the other member extends upward through the first opening;
The main body housing holds a locking member that is engaged with the locking pin according to the rotation of the rotating body and applies rotational resistance to the other member when the rotating body moves to a predetermined position. Being
A liquid massage device characterized by that. In claim 3,
First locking means for restricting relative rotation of the other member in the forward direction by a predetermined amount or more relative to the one member, and restricting relative rotation of the other member in the reverse direction by a predetermined amount or more. A second locking means,
In each of the first relative rotational position locked by the first locking means and the second relative rotational position locked by the second locking means, the first opening with respect to the first opening. One of the two openings is aligned,
A liquid massage device characterized by that. In any one of Claims 4 thru | or 7,
The first relative rotational position is obtained by rotating the rotating body in a predetermined direction without ejecting the ejecting liquid, and the first rotation is performed by rotating the rotating body in a direction opposite to the predetermined direction. 2 relative rotational position,
The first relative rotational position or the second relative rotational position is maintained by starting the ejection of the ejection liquid after setting the first relative rotational position or the second relative rotational position.
A liquid massage device characterized by that. In any one of Claim 2, Claim 3, Claim 4, Claim 6, and Claim 7,
A plurality of the second openings provided in the one member located on the upper side;
Each of the plurality of second openings is set so that the opening area gradually decreases as it goes upward.
A liquid massage device characterized by that. In claim 1,
A switching member for sweeping the discharge port of the spray nozzle is provided;
In the switching member, a plurality of openings each having an opening area that is equal to or less than an opening area of the discharge port of the spray nozzle and having different opening areas are formed.
By changing the position of the switching member, one of the plurality of openings is selectively aligned with the injection nozzle.
A liquid massage device characterized by that. In claim 1,
The spray nozzle is configured by arranging a plurality of divided spray nozzles having different opening areas from each other close to each other,
Switching means is provided for selectively supplying a jetting liquid only to any one of the plurality of split spray nozzles arranged close to each other.
A liquid massage device characterized by that.

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