JP7265952B2 - Discharge device and plumbing equipment - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to an ejection device that ejects a jet.

In some cases, a discharge device capable of ejecting a jet is incorporated in plumbing equipment such as bathroom equipment. In recent years, attempts have been made to diversify the stimulation given to the user by the jet. As an example, Patent Literature 1 describes a discharge device capable of performing swing jet in which the direction of jet flow swings within a plane.

JP 2017-108830 A

As a result of further studies, the inventors of the present application came to obtain the following new recognition. When the discharge device is fixed to the base of a bathtub or the like, the orientation of the entire discharge device cannot be changed. Therefore, even if the injection direction of the jet changes with time, the position itself of the trajectory drawn by the jet (hereinafter also referred to as the jet trajectory) does not change. Therefore, the user can receive stimulation only on the same jet trajectory, and some users may feel bored. The technique disclosed in Patent Literature 1 is not contrived from such a point of view, and there is room for improvement.

One of the objects of the present disclosure is to provide a technique that can adjust the position of the jet trajectory according to the user's preference when performing the swing jet.

A certain aspect of the present disclosure for solving the aforementioned problems is a discharge device. The ejection device of this aspect includes an ejection member capable of executing swing ejection in which the ejection direction of the jet flow swings within a plane, and a support body that movably supports the ejection member.

1 is a configuration diagram of a discharge system according to a first embodiment viewed from the side; FIG. 1 is a configuration diagram of a discharge system of a first embodiment viewed from above; FIG. 2 is a side cross-sectional view of the dispensing device of FIG. 1; FIG. FIG. 4 is a front view of the ejection device viewed from arrow A in FIG. 3 ; FIG. 4 is a rear view of the ejection device as seen from arrow B in FIG. 3 ; 4 is a cross-sectional view of the injection member cut along line CC of FIG. 3; FIG. FIG. 7 is a cross-sectional view of part of the injection flow path cut along line DD of FIG. 6; It is a figure which shows the state which is performing swing injection. Fig. 3 shows a first flow state; Fig. 3 shows a second flow state; It is a schematic diagram which shows the state in which the jet is injected by rocking injection. 11B is a graph showing the relationship between the stimulus given to the user by the jet and time at position P1 in FIG. 11A. 11B is a graph showing the relationship between the stimulus given by the jet to the user and time at position P2 in FIG. 11A. It is a schematic diagram which shows the state in which the jet is injected by swirl injection. FIG. 12B is a diagram showing a jet trajectory in the EE section of FIG. 12A; FIG. 12B is a diagram showing a jet trajectory in the FF cross section of FIG. 12A; FIG. 11B is a diagram showing a jet trajectory in the GG section of FIG. 11A. FIG. 11B is a diagram showing a jet trajectory in the HH section of FIG. 11A. 4 is a side cross-sectional view showing a state in which the injection member of FIG. 3 is rotated; FIG. FIG. 4 is a schematic diagram showing states before and after adjusting the jet trajectory. It is a side cross-sectional view of the discharge device of the second embodiment. It is a figure which shows the rotation locus|trajectory at the time of rotating a jet locus|trajectory. It is a side cross-sectional view of a discharge device of a third embodiment. FIG. 11 is a schematic side cross-sectional view of a discharge device according to a fourth embodiment; FIG. 11 is another schematic side cross-sectional view of the discharge device of the fourth embodiment. It is the block diagram which looked at the discharge system of 5th Embodiment from the upper direction.

An example of an embodiment will be described below. The same reference numerals are given to the same components, and overlapping descriptions are omitted. In each drawing, for convenience of explanation, some of the constituent elements are omitted, enlarged, or reduced as appropriate. The drawings should be viewed according to the orientation of the symbols. The structures and shapes referred to herein include not only structures and shapes that closely match the shapes referred to, but also structures and shapes that deviate due to errors such as dimensional and manufacturing errors. Unless otherwise specified, the terms "connection", "fixation", "attachment", and "support" in this specification refer to cases in which the two parties directly satisfy the conditions referred to, and other members It also includes cases where it is satisfied through

(First Embodiment) FIGS. 1 and 2 will be referred to. The discharge device 10 is used in a plumbing facility 12 . The plumbing equipment 12 of this embodiment is a bathroom equipment 14 and includes a bathtub 16 . The bathroom equipment 14 also includes a bathroom wall, a washing floor, and the like.

The bathtub 16 is an example of a tub that can receive the jet J ejected from the ejection device 10 . The bathtub 16 has a rectangular shape in plan view. The bathtub 16 includes a bottom portion 16a and a plurality of side walls 16b rising from four peripheral edge portions of the bottom portion 16a.

Dispensing device 10 is used in dispensing system 18 . The discharge system 18 includes a liquid supply passage 22 that supplies liquid from a liquid source 20 to the discharge device 10 , a pump 24 provided in the middle of the liquid supply passage 22 , and a controller 26 that controls the pump 24 . The liquid source 20 of this embodiment is a bathtub 16 that stores bathtub water W as the liquid to be sprayed. The pump 24 supplies liquid to the ejection device 10 through the liquid supply path 22 by pumping the liquid sucked from the liquid source 20 under the control of the control unit 26 .

The ejection device 10 ejects the liquid as a jet J that is supplied through the liquid supply path 22 . The ejection device 10 of this embodiment ejects a jet J of a single-phase flow of liquid. The ejection device 10 of the present embodiment ejects bathtub water W that circulates through the liquid supply passage 22 by means of the pump 24 . The jet J of this embodiment can hit the user's body, particularly at least one of the back and hips of the user sitting in the bathtub 16 from the back side. Thereby, a user can be given a massage effect.

Please refer to FIG. The discharge device 10 is attached to a wall-shaped base 28 provided in the plumbing equipment 12 . The base 28 of this embodiment is the side wall portion 16b of the bathtub 16 . A through hole 30 for mounting the discharge device 10 is formed in the base 28 .

The ejection device 10 includes an ejection member 32 that ejects the jet J and a support 34 that supports the ejection member 32 . An injection flow path 36 for injecting the jet J is formed in the injection member 32 . An outlet hole 38 is formed at the downstream end of the jet flow path 36 .

In this specification, the horizontal direction along the center line CL1 of the outlet hole 38 of the jet flow path 36 is called the front-rear direction X, and the horizontal direction orthogonal to the front-rear direction X is called the left-right direction Y in plan view. Of the two sides in the front-rear direction X, the ejection direction of the ejection member 32 is called the front side (left side in FIG. 3), and the opposite side is called the rear side (right side in FIG. 3).

A support 34 is attached to the base 28 . The support 34 includes a fixing member 40 fixed to the base 28 and a holding member 42 detachable from the fixing member 40 . The fixing member 40 includes an outer component 44 (first component) arranged on one side of the base 28 in the thickness direction, and an inner component 46 (second component) arranged on the opposite side of the base 28 to the outer component 44 . parts).

The outer component 44 includes an inner tubular portion 48 to which the injection member 32 is connected, and an outer tubular portion 50 to which the inner component 46 is detachably connected. The inner cylindrical portion 48 functions as a receiving portion that receives the injection member 32 and supports the injection member 32 .

The inner part 46 is a cylindrical body that is inserted through the through hole 30 of the bathtub 16, and the injection member 32 is inserted through the inside thereof. The inner component 46 is connected to the outer tubular portion 50 of the outer component 44 via a threaded arrangement 52 . The threaded structure 52 is a combination of external threads 52a and internal threads 52b formed in the outer component 44 and the inner component 46, respectively. The outer component 44 and the inner component 46 of this embodiment sandwich the base 28 by screwing the male threaded portion 52a into the female threaded portion 52b of the threaded structure 52 . Thereby, the fixing member 40 is fixed to the base 28 .

The injection member 32 comprises a connection 54 connected to the support 34 . The connecting portion 54 of this embodiment is provided at the rear end portion of the injection member 32 . The connecting portion 54 has a tubular shape and is inserted into the inner tubular portion 48 of the support 34 . The injection member 32 includes a brim-shaped stopper portion 56 provided on the outer peripheral portion of the injection member 32 . The stopper portion 56 restricts movement of the injection member 32 in the insertion direction of the connecting portion 54 into the inner tubular portion 48 by contact with the opening peripheral portion of the inner tubular portion 48 .

A central hole 42 a is formed in the pressing member 42 . The injection member 32 has a projecting portion 58 projecting from the central hole 42 a of the pressing member 42 . The projecting portion 58 of the injection member 32 is provided at the front portion of the injection member 32 . The pressing member 42 of the present embodiment functions as a cover member that covers a portion of the injection member 32 behind the projecting portion 58 , that is, a portion of the injection member 32 .

The injection member 32 includes a brim-shaped pressed portion 60 provided on the rear side of the projecting portion 58 of the injection member 32 . The holding member 42 restricts the movement of the injection member 32 in the separating direction with respect to the fixed member 40 by contacting the pressed portion 60 of the injection member 32 with the peripheral edge of the opening of the central hole 42a. Thereby, the pressing member 42 fixes the position of the injection member 32 in the front-rear direction X with respect to the fixing member 40 . Here, the term "detachment direction" refers to a direction opposite to the aforementioned insertion direction.

The ejection device 10 further includes a feed channel 62 for sending the liquid supplied from the liquid supply channel 22 to the injection member 32 and a return channel 64 for returning the bathtub water W taken from the bathtub 16 to the liquid supply channel 22 . Prepare. 3 and 5 show a flow direction 62A of part of the liquid in the feed channel 62 and a flow direction 64A of part of the liquid in the return channel 64. FIG. A downstream portion of the feed channel 62 is formed inside the inner cylindrical portion 48 of the support 34 . A return channel 64 is formed between the injection member 32 and the support 34 and between the outer tubular portion 50 and the inner tubular portion 48 of the support 34 . In this embodiment, the pressure member 42 is formed with a plurality of water passage holes 66 that allow the internal space of the bathtub 16 and the return flow path 64 to communicate with each other.

In the injection member 32 , in addition to the injection flow path 36 , a relay flow path 68 that supplies the liquid supplied from the liquid supply path 22 to the injection flow path 36 is formed. The relay flow path 68 is formed inside the connecting portion 54 .

6 and 7 are referred to. The injection flow path 36 is formed with a main flow path 70 into which the liquid flows from the liquid supply path 22 and the above-described outlet hole 38 through which the liquid in the main flow path 70 is discharged to the outside.

The injection flow path 36 includes a pair of opposing surfaces 72 facing in the height direction H and a pair of inner side surfaces 74 facing in the width direction W. As shown in FIG. The height direction H and the width direction W here refer to directions orthogonal to the center line CL2 of the injection flow path 36 and orthogonal to each other. The centerline L2 here refers to the centerline of the cross section formed by the pair of facing surfaces 72 and the pair of inner side surfaces 74 . The main flow path 70 has a rectangular cross section perpendicular to the center line CL2. The main flow path 70 of the present embodiment has a rectangular cross section in which the height dimension Lh along the height direction H is smaller than the inner width dimension Lw along the depth W in the width direction.

The jet flow path 36 of the present embodiment has a symmetrical cross-sectional shape with the center line CL2 of the main flow path 70 as the axis of symmetry when viewed from the height direction H (viewed from the viewpoint of FIG. 6). The injection flow path 36 has a cross-sectional shape that is symmetrical in the height direction H with respect to the center line CL2 when viewed from the direction along the center line CL2 of the main flow path 70 (viewed from the viewpoint of FIG. 7). This condition is met at least in the main flow path 70 and in this embodiment also in the outlet holes 38 .

The exit hole 38 opens into the outer surface of the injection member 32 . The outlet hole 38 of this embodiment opens in the front part of the injection member 32, and the injection member 32 injects the jet J forward. The inner width dimension of the outlet hole 38 is set to be smaller than the inner width dimension of the upstream flow path (main flow path 70) on the way to the front side (upper side of the paper surface of FIG. 6). The outlet hole 38 is formed so that the inner width dimension continuously widens toward the front side.

6 and 8 are referred to. The injection member 32 is a fluid element 76 capable of performing an oscillating injection. Oscillating injection refers to an injection in which the injection direction Da of the jet J fluctuates with time in a plane. Due to this swinging injection, a wave-like jet J is propagated from the injection member 32 so as to spread radially. This "injection direction Da" refers to the injection direction Da when the jet flow J is emitted from the injection member 32 to the outside. “Swinging within a plane” means that the directional axis of the injection direction swings within a plane around the swinging center Sc. Even if the injection direction slightly fluctuates in the normal direction of the plane while the injection direction Da fluctuates within the plane, the condition of "fluctuation within the plane" is satisfied. For example, even when the ejection direction Da deviates from the plane by ±10° in the normal direction of the plane, the condition of "fluctuation within the plane" is satisfied.

In order to realize swing injection, the injection member 32 of this embodiment has the following configuration. Specifically, the main channel 70 includes an inlet channel 78 into which the liquid flows from the liquid supply channel 22, a pair of intermediate channels 80A and 80B into which the liquid flows from the inlet channel 78, and a pair of intermediate channels 80A and 80B. and a confluence chamber 82 in which the liquids flowing in from each of the .

The jet channel 36 includes a first wall portion 84 that blocks the downstream flow of liquid in the inlet channel 78 . A pair of intermediate flow paths 80A and 80B are provided on both sides in the width direction Y with respect to the first wall portion 84 . The pair of intermediate flow paths 80A and 80B includes a first intermediate flow path 80A provided on one side in the width direction Y and a second intermediate flow path 80B provided on the opposite side. The jet flow path 36 includes a second wall portion 86 that blocks the flow of liquid toward the downstream side within the confluence chamber 82 . An exit hole 38 is formed in the second wall portion 86 .

The operation of the injection member 32 of this embodiment will be described. 9 and 10 are referred to. In this figure, arrows indicate main liquid flow directions.

The liquid that has flowed into the inlet channel 78 flows into the confluence chamber 82 via the pair of intermediate channels 80A and 80B. The first intermediate flow path 80A injects the first internal jet F1 into the confluence chamber 82. As shown in FIG. The second intermediate flow path 80B injects the second internal jet F2 into the confluence chamber 82. As shown in FIG. These jets F1 and F2 are affected by fluctuations caused by the randomness of the liquid, and one of them becomes a dominant flow (hereinafter referred to as a dominant flow) with stronger force than the other. FIG. 9 shows a first flow state in which the first internal jet F1 is the dominant flow. FIG. 10 shows a second flow state in which the second internal jet F2 is the dominant flow.

As shown in FIG. 9, when in the first flow state, the second internal jet F2 is obstructed from flow by collision with the first internal jet F1. On the other hand, the first internal jet F1 flows with momentum until it collides with the second wall portion 86, turns back in the confluence chamber 82, joins with the second internal jet F2, and the momentum of the second internal jet F2 is increased. amplifies the As a result, the flow state is switched to the second flow state in which the second internal jet F2 is the dominant flow.

As shown in FIG. 10, when in the second flow state, the first internal jet F1 is obstructed in flow by collision with the second internal jet F2. On the other hand, the second internal jet F2 flows with momentum until it collides with the second wall portion 86, turns back in the confluence chamber 82, joins with the first internal jet F1, and the momentum of the first internal jet F1 is increased. amplifies the As a result, the flow state is switched to the first flow state in which the first internal jet F1 is the dominant flow.

As a result, the first flow state and the second flow state are periodically switched. When in the first flow state, the first internal jet F1 forms a liquid flow F3 through the exit hole 38. As shown in FIG. This liquid flow F3 has a velocity vector directed to one side (the right side in the figure) in the width direction W and to the front side. When in the second flow state, the second internal jet F2 forms a liquid flow F4 through the exit hole 38. As shown in FIG. This liquid flow F4 has a velocity vector directed to the other side in the width direction W (the left side in the drawing) and to the front side. By periodically switching between these flow states, the liquid flows F3 and F4 passing through the outlet hole 38 periodically increase or decrease in magnitude of the velocity vector (vector amount) in the width direction W. As a result, an oscillating injection is performed in which the injection direction Da of the jet J oscillates within the plane P (see FIGS. 3 and 4). The injection member 32, which is the fluidic element 76, can independently perform such an oscillating injection while remaining stationary. In this embodiment, the "plane P" is provided parallel to the left-right direction Y on the center line CL1 of the outlet hole 38, and is inclined with respect to the horizontal plane.

Please refer to FIGS. The injection member 32 described above is arranged below the water surface WS of the bathtub water W when the bathtub water W is stored in the bathtub 16 . The injection member 32 injects a jet J into the bathtub water W stored in the bathtub 16 . Bathtub water W flowing from the bathtub 16 is stored inside the injection member 32 when the injection of the jet J is stopped.

Effects of the ejection device 10 described above will be described. Please refer to FIGS. 11A-11C. A trajectory drawn by the jet J assuming that the jet J propagates without receiving other fluid is called a jet trajectory JT. The jet trajectory JT obtained by the swing injection forms a fan shape that spreads radially from the injection member 32 . The jet trajectory JT includes a pair of end regions R1 provided on both sides of the jet J in the swinging direction Db, and an intermediate region R2 provided therebetween.

The jet J obtained by the swing jet moves so as to hit the same part of the user in one swing cycle. In particular, the jet J passing through the end region R1 of the jet trajectory JT moves so as to turn back. Therefore, the time interval between hits on the same part of the user becomes relatively long (see FIG. 11B). On the other hand, the jet J passing through the intermediate region R2 of the jet trajectory JT moves linearly. Therefore, the time interval between hits on the same part of the user is relatively shortened (see FIG. 11C). Therefore, the jet J passing through the end region R1 can easily give a relatively strong stimulus to the user, and the jet J passing through the middle region R2 can easily give a relatively weak stimulus to the user. In other words, although there are differences in sensations received by users, the strength of the stimulation imparted by the jet tends to have a large contrast depending on the position within the jet trajectory JT. For example, the jets J passing through the end regions R1 can provide strong stimulation near the user's flanks, and the jets J passing through the middle region R2 can provide weak stimulation near the user's spine.

See FIG. 12A. On the other hand, the jet trajectory JT obtained by the swirl injection forms a three-dimensional conical surface that spreads radially from the injection member. The jet J passing through such a jet trajectory JT does not move so as to hit the same part of the user in one turning cycle. Therefore, unlike the jet J obtained by the swing jet, the time interval of hitting the same part of the user becomes nearly constant depending on the position of the jet trajectory JT. For this reason, it becomes difficult to obtain a large contrast in the strength of the stimulation given by the jet.

(A1) The ejection device 10 of the present embodiment includes an ejection member 32 capable of performing swing ejection. Therefore, it is possible to provide the user with a strong and weak stimulus in this manner, and to diversify the stimulus provided by the jet J to the user. In particular, since it is not necessary to control the output of the pump 24 in order to obtain such effects, the discharge system 18 can be simplified.

When the jet J is ejected in the bathtub water W, the momentum of the jet J is gradually weakened by involving the bathtub water W. Therefore, the greater the distance from the injection member 32, the weaker the force of the jet J hitting the user. Using this, the user can adjust the strength of the jet J by adjusting the user's distance from the injection member 32 .

See FIGS. 12A-12C. If the injection member 32 performs a swirling injection, the jet locus JT forms a three-dimensional conical surface. Therefore, when the distance of the user from the injection member 32 increases, the cross-sectional shape of the jet locus JT changes greatly two-dimensionally (see FIGS. 12B and 12C). Therefore, when adjusting the user's distance to the injection member 32, it becomes difficult for the user to intuitively grasp the position where the jet J hits.

(A2) Refer to FIGS. 13A and 13B. When the injection member 32 performs the swing injection in the bathtub water W, it is hardly affected by gravity, so the jet locus JT forms a planar fan shape. Therefore, even if the cross-sectional shape of the jet trajectory JT changes when the user moves away from the injection member 32, the change can be limited to a large one-dimensional change (see FIGS. 13A and 13B). Therefore, when the user adjusts the user's distance to the injection member 32, it becomes easier for the user to intuitively grasp the position where the jet stream J strikes. As a result, the distance and position to the injection member 32 can be easily adjusted so that the user's desired location is hit with the desired strength of the jet J, compared to the case of executing the swirl injection.

(A3) The injection member 32 injects the jet stream J in the bathtub water W. Therefore, the user can be hit with the jet J while the bathtub water W is involved. Therefore, compared to the case where the jet J is ejected in the air, the range where the jet J hits the user can be widened. In addition, unlike the case where the jet J is jetted in the air, it is possible to avoid a situation in which the surroundings are unintentionally wet due to scattering of fine droplets.

(A4) The injection member 32 can radially inject the wavy jet flow J that propagates over a wide range by executing the swing injection. Therefore, it is possible to reduce the number of ejection devices 10 required to propagate the jet J over a wide range. As a result, the number of locations to be cleaned can be reduced, and the cleaning work can be facilitated.

(A5) The injection member 32 is a fluidic element 76 capable of performing swing injection. Therefore, a dedicated power source is not required for temporally changing the injection direction of the jet J, and the discharge device 10 can be simplified.

Other features of the ejection device 10 will be described. Please refer to FIGS. The support 34 of this embodiment movably supports the injection member 32 . To achieve this, the connecting portion 54 of the injection member 32 is rotatably connected to the inner tubular portion 48 of the support 34 . This support 34 supports the injection member 32 so as to be rotatable around the rotation center line CL4. The rotation center line CL4 is provided coaxially with the center axis line (not shown) of the inner cylindrical portion 48 . In this embodiment, it is provided parallel to the central axis (not shown) of the through hole 30 of the base 28 .

The injection member 32 includes an operating portion 88 that is operated by the user when moving the injection member 32 . The operating portion 88 of the present embodiment is configured by the outer peripheral portion of the projecting portion 58 .

3 and 14 are referred to. The injection member 32 can be arranged at a first position Pa1 (see FIG. 3) and a second position Pa2 (see FIG. 14) by rotating around the rotation center line CL4. In this embodiment, the injection member 32 can be arranged from the first position Pa1 to the second position Pa2 by rotating the injection member 32 by 90° around the rotation center line CL4.

Please refer to FIG. The two-dot chain line in the figure corresponds to the position of the jet trajectory JT in FIG. 13B. The user can adjust the position of the jet locus JT by moving the injection member 32 . In this embodiment, by rotating the injection member 32 around the rotation center line CL4, the position of the jet locus JT can be adjusted so as to rotate around the center line CL3 of the injection locus JT. FIG. 15 shows the position Pb1 of the injection locus JT when the injection member 32 is at the first position Pa1 and the position Pb2 of the injection locus JT when the injection member 32 is at the second position Pa2.

3 and 15 are referred to. The injection member 32 is provided at a position such that the width direction W of the injection flow path 36 (the direction orthogonal to the paper surface of FIG. 14) is along the left-right direction Y when arranged at the first position Pa1. As a result, the injection member 32 can perform swing injection such that the injection direction swings left and right. As a result, the injection trajectory JT is drawn so as to spread radially in the horizontal direction Y, as indicated by the position Pb1.

14 and 15 are referred to. The injection member 32 is provided at a position such that the height direction H of the injection flow path 36 (the direction perpendicular to the paper surface of FIG. 14) is along the left-right direction Y when arranged at the second position Pa2. As a result, the injection member 32 can perform swing injection such that the injection direction swings up and down. As a result, the jet trajectory JT is drawn so as to extend in a direction orthogonal to the center line CL3 and the left-right direction Y of the jet trajectory JT, as indicated by the position Pb2.

(B1) The support 34 of the present embodiment movably supports the injection member 32 . Therefore, by moving the injection member 32, it is possible to adjust the position of the jet locus JT according to the user's preference when performing the swing injection.

(B2) In particular, the injection member 32 performs swing injection. Therefore, as described above, the strength of the stimulation given by the jet J differs depending on the position within the jet trajectory JT. By moving the injection member 32 in this manner, the position of the end region R1 of the jet trajectory JT that can impart a strong stimulus can be adjusted. Therefore, it becomes possible to adjust the position where a strong stimulus can be given to the user according to the user's preference.

(B3) The support member 34 rotatably supports the injection member 32 capable of performing swing injection. Therefore, the position of the jet trajectory JT can be adjusted so as to rotate around the center line CL3 of the jet trajectory JT. Therefore, the position of the end region R1 of the jet trajectory JT can be largely moved without greatly moving the position of the intermediate region R2. As a result, it is possible to realize adjustment such that the position of the end region R1, to which a strong stimulus can be applied, is largely changed without greatly changing the position of the intermediate region R2, to which a weak stimulus can be applied.

Please refer to FIG. A seal member 90 is arranged between the connecting portion 54 of the injection member 32 and the inner tubular portion 48 of the support 34 . A seal member 90 seals between them. The sealing member 90 is an elastic body such as rubber. The seal member 90 of this embodiment is mounted in a groove portion 92 formed in the outer peripheral portion of the injection member 32 .

The seal member 90 can restrict liquid leakage from the feed channel 62 of the support 34 to locations other than the injection channel 36 of the injection member 32 . “A portion other than the injection flow path 36 ” in this embodiment is the return flow path 64 . As a result, the amount of liquid supplied to the injection member 32 can be ensured, and the jet J with a desired force can be stably injected. In general, liquid leakage is likely to occur between the movable element and the fixed element. Liquid leakage between the injection member 32 as such a movable element and the support 34 as a fixed element can be prevented.

(Second Embodiment) FIG. 16 is referred to. The ejection device 10 of this embodiment differs from that of the first embodiment in the ejection member 32 . The centerlines CL1 and CL5 of the outlet hole 38 of the injection channel 36 and the main channel 70, respectively, are eccentric from the rotation centerline CL4 of the injection member 32 and parallel to the rotation centerline CL4. Thereby, the center line CL1 of the outlet hole 38 is provided at a position different from the rotation center line CL4.

See FIG. This figure shows the jet trajectory JT obtained by executing the swing injection, and the rotational trajectory RT obtained by rotating the jet trajectory JT around the center line CL3. This rotational trajectory RT indicates the maximum range that the jet flow JT jetted from the jetting member 32 can reach when the jetting member 32 is rotated around the rotation center line CL4. Solid-line trajectories JT and RT are obtained by the structure of this embodiment. The dashed trajectories JT, RT are obtained by a structure in which the centerline CL1 of the exit hole 38 and the rotation centerline CL4 are coaxial.

(C) According to the present embodiment, as shown in FIG. 17, compared to the case where the center line CL1 of the outlet hole 38 is coaxial with the rotation center line CL4, it is easier for the jet J to reach when the injection member 32 is rotated. You can extend the range.

In addition, the ejection device 10 of the present embodiment can obtain the effects described in (A1) to (A5) and (B1) to (B3) above.

(Third Embodiment) FIG. 18 is referred to. The ejection device 10 of this embodiment differs from that of the first embodiment in the ejection member 32 . The centerlines CL1 and CL5 of the outlet hole 38 of the injection channel 36 and the main channel 70 respectively intersect the rotation centerline CL4 of the injection member 32 and are provided at positions inclined with respect to the rotation centerline CL4. Thereby, the center line CL1 of the outlet hole 38 is provided at a position different from the rotation center line CL4.

The above-described effect (C) can also be obtained according to this embodiment. In addition, according to the present embodiment, compared to the case where the center line CL1 of the outlet hole 38 is eccentric with respect to the rotation center line CL4, the position of the upstream portion of the injection flow path 36 is brought closer to the rotation center line CL4. be able to. Along with this, the radial dimension of the upstream portion of the injection flow path 36 can be reduced.

In addition, the ejection device 10 of the present embodiment can obtain the effects described in (A1) to (A5) and (B1) to (B3) above.

(Fourth Embodiment) FIGS. 19 and 20 are referred to. The support 34 of this embodiment supports the injection member 32 so that it can tilt up and down. In order to realize this, the connection portion 54 of the injection member 32 is connected to the support 34 via a ball joint, a pin, or the like so as to be tiltable. The injection member 32 can tilt up and down around a tilting center CL6 passing through the connection position with respect to the support 34 . Thereby, the position of the entire jet locus JT along which the jet J injected by the injection member 32 passes can be adjusted.

In this embodiment, the injection member 32 can be arranged between the first position Pc1 and the second position Pc2 by vertically tilting the injection member 32 . The injection member 32 is provided such that the center line CL1 of the outlet hole 38 extends upward toward the front side when arranged at the first position Pc1. In this embodiment, the center line CL5 of the main flow path 70 also satisfies the same condition. The injection member 32 is provided such that the center line CL1 of the outlet hole 38 extends downward toward the front side when arranged at the second position Pc2. In this embodiment, the center line CL5 of the main flow path 70 also satisfies the same condition.

The injection member 32 of the present embodiment is provided at a position such that the width direction W of the injection flow path 36 (the direction perpendicular to the paper surface of FIG. 20) is along the left-right direction Y. As shown in FIG. As a result, the injection member 32 can perform swing injection such that the injection direction swings left and right.

Effects of the ejection device 10 of the present embodiment will be described. When the injection of the jet J is stopped, the bathtub water in the injection flow path 36 may be discharged. At this time, by tilting the injection member 32 downward, it is possible to more easily discharge the bathtub water from the injection flow path 36 than if the injection member 32 were left at its original position (see FIG. 20). As a result, good sanitation can be obtained by avoiding the bathtub water remaining in the injection flow path 36 .

When the injection of the jet J is to be started, it is necessary to supply the bathtub water into the injection flow path 36 until the inside of the injection flow path 36 is filled with the bathtub water. At this time, by tilting the injection member 32 upward, the air in the injection flow path 36 can be more easily discharged than when the injection member 32 is left at its original position (see FIG. 19). If air remains in the injection flow path 36, the shape of the jet J may be disturbed. For example, when the swing injection is performed, the shape of the jet J may be disturbed, and the amplitude of the wavy jet may be greatly reduced. In this regard, according to the present embodiment, the shape of the jet J can be stabilized by making it easier to exhaust the air in the injection flow path 36 .

In addition, the ejection device 10 of the present embodiment can obtain the effects described in (A1) to (A5), (B1), and (B2) above.

(Fifth Embodiment) FIG. 21 is referred to. This embodiment differs from the first embodiment in the configuration of the ejection device 10 . Dispensing device 10 includes a power source 94 that drives injection member 32 . The power source 94 is, for example, a motor or the like. The power source 94 swings the injection member 32 in the left-right direction Y under the control of the control unit 26, thereby causing the injection member 32 to perform the swing injection.

The ejection device 10 of the present embodiment can obtain the effects described in (A1) to (A4) above. Thus, in order to obtain the effects (A1) to (A4) described above, the ejection device 10 cooperates with other elements when liquid is supplied to the ejection member 32, and the ejection member 32 alone Any one of them may be used as long as it is possible to cause the injection member 32 to perform the swing injection. Other elements here are, for example, a combination of the power source 94 and the control section 26 as in the fifth embodiment. In the first embodiment and the like, an example in which the injection member 32 alone performs the swing injection has been described.

Another modified example of each component will be described.

A specific example of the plumbing equipment 12 is not particularly limited, and may be, for example, kitchen equipment, washbasin equipment, and the like. A specific example of the tank body of the plumbing equipment 12 is not particularly limited, and for example, it may be a sink such as a kitchen sink or a washing sink.

The bathroom equipment 14 only needs to have at least the bathtub 16, and the bathroom wall, the floor of the washing space, etc. may be omitted.

The liquid source 20 of the dispensing system 18 is not limited to the bath 16 and may be provided separately from the bath 16, for example. The liquid source 20 may be a water supply facility such as a water supply installed outside the building where the plumbing facility 12 is installed. In this case, the discharge system 18 does not need to be equipped with the pump 24 because the water under pressure is supplied from the water supply facility to the liquid supply passage 22 .

An example in which the feed channel 62 and the return channel 64 are formed inside the common ejection device 10 has been described. The return flow path 64 may be formed at a location different from the ejection device 10 in the bathtub 16 .

A specific example of the discharge device 10 is not particularly limited, and for example, it may be used as a shower device.

The ejection device 10 only needs to eject the jet J so as to hit the user's body, and the position at which the jet J hits the user is not particularly limited. For example, the ejection device 10 may eject the jet J so as to hit the user's body from the side.

The manner in which the support 34 is attached to the base 28 is not particularly limited.

A specific example of the fluidic element 76 capable of executing the swing jet is not particularly limited. For example, a fluidic element 76 that utilizes Karman vortices may be used, or a fluidic element 76 that utilizes the Coanda effect may be used.

In order to obtain the effects (A1) to (A5) described above, the injection member 32 may be immovably supported by a support 34, unlike the embodiment.

In order to obtain the effects (B1) to (B3) described above, the injection member 32 may inject the jet J in the air. From a similar point of view, the base 28 to which the injection member 32 is attached may be intended for other than the bathtub 16, unlike the embodiment. The base 28 may be, for example, a flange that forms the peripheral edge of the top opening of the bathtub 16 .

In order to obtain the effects of (B1) and (B2) described above, the manner in which the injection member 32 is supported on the support 34 is not particularly limited. The support body 34 may support the injection member 32 so as to be linearly movable in the front-rear direction X, for example. Alternatively, the support 34 may support the injection member 32 so as to be tiltable to the left and right.

In order to obtain the effect of (C) described above, the outlet hole 38 of the injection flow path 36 may be provided at a position different from the rotation center line CL4 of the injection member 32 . For example, the centerline CL5 of the main flow path 70 of the injection flow path 36 may be coaxial with the rotation centerline CL4.

The embodiments and modifications have been described above. In understanding the technical ideas that abstract the embodiments and modifications, the technical ideas should not be construed as being limited to the contents of the embodiments and modifications. The above-described embodiments and modifications are merely specific examples, and many design changes such as changes, additions, and deletions of components are possible. In the embodiment, the description of "embodiment" is added to emphasize the content that allows such design changes. However, design changes are permitted even if there is no such notation. The hatching attached to the cross section of the drawing does not limit the material of the hatched object.

Any combination of the above components is also effective as an aspect of the technical concept abstracting the embodiments and modifications. For example, an embodiment may be combined with any description of another embodiment, or a modification may be combined with an embodiment and any description of another modification.

By abstracting the above embodiments and modifications, the technical ideas described in the following items can also be grasped.

(Item 1) An injection member capable of performing kinetic injection in which the injection direction of the jet changes with time; and a center line of an outlet hole of the injection channel is provided at a position different from a rotation center line of the injection member.

The kinetic injection here includes, for example, either the swing injection or the swirl injection described above. The swirl injection is an injection in which the injection direction of the jet swirls around the swirl center line. Due to the swirl injection, a spiral jet flow spreads radially from the injection member.

DESCRIPTION OF SYMBOLS 10... Ejection apparatus, 12... Plumbing equipment, 14... Bathroom equipment, 16... Bathtub, 32... Injection member, 34... Support body, 36... Injection flow path, 38... Exit hole, 76... Fluid element.

Claims (6)

an injection member capable of executing an oscillating injection in which the injection direction of the jet oscillates within a plane;
a support that movably supports the injection member ;
The ejection device, wherein the ejection member is a fluid element capable of independently performing the swing ejection. 2. The discharge device according to claim 1, wherein said support rotatably supports said injection member. The injection member is formed with an injection flow path for injecting the jet,
3. The ejection device according to claim 2, wherein the centerline of the outlet hole of the ejection channel is provided at a position different from the rotation centerline of the ejection member. The ejection device according to any one of claims 1 to 3, wherein the support supports the injection member so as to be vertically tiltable. The discharge device is attached to the bathtub,
5. The discharge device according to any one of claims 1 to 4, wherein the injection member is arranged below the water surface of the bathtub water when the bathtub water is stored in the bathtub. Plumbing equipment comprising the discharge device according to any one of claims 1 to 5.

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