WO2021015033A1

WO2021015033A1 - Discharge device and plumbing equipment

Info

Publication number: WO2021015033A1
Application number: PCT/JP2020/027208
Authority: WO
Inventors: 哲郎松本; 道太郎牧; 弘明渡邊
Original assignee: 株式会社Ｌｉｘｉｌ
Priority date: 2019-07-24
Filing date: 2020-07-13
Publication date: 2021-01-28
Also published as: JP7265952B2; JP2021016849A

Abstract

The present invention is provided with: a spray member 32 that is capable of performing swing spray in which the spray direction of a spray flow swings in a plane; and a support body 34 that movably supports the spray member 32. When performing the swing spray, the position of a spray trajectory can be adjusted by moving the spray member 32 according to the preference of a user. A spray flow passage for spraying a spray flow is formed in the spray member 32, and the center line of an outlet hole of the spray flow passage may be provided at a position different from the rotation center line of the spray member.

Description

Discharge device and water supply equipment

The present disclosure relates to a discharge device that injects a jet stream.

In some cases, a discharge device capable of jetting a jet may be installed in water supply equipment such as bathroom equipment. In recent years, attempts have been made to diversify the stimuli that jets give to users. As an example of this, Patent Document 1 describes a discharge device capable of performing swing injection in which the jet direction of the jet swings in a plane.

JP-A-2017-108830

As a result of proceeding with the study, the inventor of the present application has come to obtain the following new recognition. When the discharge device is fixed to a base such as a bathtub, the orientation of the entire discharge device cannot be changed. Therefore, even if the jet direction of the jet changes with time, the position of the trajectory drawn by the jet (hereinafter, also referred to as the jet trajectory) does not change. Therefore, the user can be stimulated only on the same jet trajectory, and some users may find it boring. The disclosure technique of Patent Document 1 has not been devised from such a viewpoint, and there is room for improvement.

One of the objects of the present disclosure is to provide a technique capable of adjusting the position of a jet locus according to a user's preference when performing rocking injection.

One aspect of the present disclosure for solving the above-mentioned problems is a discharge device. The discharge device of this embodiment is a discharge device including an injection member capable of performing rocking injection in which the jet direction of the jet swings in a plane, and a support that movably supports the injection member.

It is a block diagram which looked at the discharge system of 1st Embodiment from the side. It is a block diagram which looked at the discharge system of 1st Embodiment from above. It is a side sectional view of the discharge device of FIG. It is a front view of the discharge device seen from the arrow A of FIG. It is a rear view of the discharge device seen from the arrow view B of FIG. It is sectional drawing of the injection member cut along the line CC of FIG. FIG. 6 is a cross-sectional view of a part of the injection flow path cut along the DD line of FIG. It is a figure which shows the state which a rocking injection is executed. It is a figure which shows the 1st flow state. It is a figure which shows the 2nd flow state. It is a schematic diagram which shows the state which the jet flow is injected by the rocking injection. It is a graph which shows the relationship between the stimulus given by a jet to a user and time at the position P1 of FIG. 11A. It is a graph which shows the relationship between the stimulus which a jet gives to a user and time at the position P2 of FIG. 11A. It is a schematic diagram which shows the state which the jet flow is injected by the swirl injection. It is a figure which shows the jet locus in the EE cross section of FIG. 12A. It is a figure which shows the jet locus in the FF cross section of FIG. 12A. It is a figure which shows the jet locus in the GG cross section of FIG. 11A. It is a figure which shows the jet locus in the HH cross section of FIG. 11A. FIG. 3 is a side sectional view showing a state in which the injection member of FIG. 3 is rotated. It is a schematic diagram which shows the state before and after adjusting the jet locus. It is a side sectional view of the discharge device of 2nd Embodiment. It is a figure which shows the rotation locus when the jet locus is rotated. It is a side sectional view of the discharge device of 3rd Embodiment. It is a schematic side sectional view of the discharge device of 4th Embodiment. It is a schematic other side sectional view of the discharge device of 4th Embodiment. It is a block diagram which looked at the discharge system of 5th Embodiment from above.

An example of the embodiment will be described below. The same components are designated by the same reference numerals, and duplicate description will be omitted. In each drawing, for convenience of explanation, some of the components are omitted, enlarged, or reduced as appropriate. The drawings shall be viewed according to the orientation of the symbols. The structures and shapes referred to herein include not only structures and shapes that exactly match the shapes referred to, but also structures and shapes that are offset by errors such as dimensional errors and manufacturing errors. Unless otherwise specified, the terms "connection", "fixation", "mounting", and "support" as used herein are not only when the two parties directly satisfy the conditions mentioned, but also other members. Including the case of satisfying through.

(First Embodiment) Refer to FIGS. 1 and 2. The discharge device 10 is used for the water supply equipment 12. The water supply equipment 12 of the present embodiment is a bathroom equipment 14, and includes a bathtub 16. The bathroom facility 14 also includes a bathroom wall, a washroom floor, and the like.

The bathtub 16 is an example of a tank body capable of receiving the jet J jet injected from the discharge device 10. The bathtub 16 has a rectangular shape in a plan view. The bathtub 16 includes a bottom surface portion 16a and a plurality of side wall portions 16b rising from the four peripheral end edges of the bottom surface portion 16a.

The discharge device 10 is used in the discharge system 18. The discharge system 18 includes a liquid supply passage 22 for supplying a liquid from the liquid source 20 to the discharge device 10, a pump 24 provided in the middle of the liquid supply passage 22, and a control unit 26 for controlling the pump 24. The liquid source 20 of the present embodiment is a bathtub 16 that stores bathtub water W as the liquid to be jetted. Under the control of the control unit 26, the pump 24 supplies the liquid to the discharge device 10 through the liquid supply passage 22 by pumping the liquid sucked from the liquid source 20.

The discharge device 10 injects the liquid supplied through the liquid supply passage 22 as a jet stream J. The discharge device 10 of the present embodiment injects a single-phase flow jet J of a liquid. The discharge device 10 of the present embodiment injects the bath water W circulating in the liquid supply passage 22 by the pump 24. The jet J of the present embodiment can be applied to the user's body, particularly at least one of the back and waist of the user in the sitting position in the bathtub 16 from the back side. As a result, a massage effect can be given to the user.

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

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

In the present specification, in a plan view, the horizontal direction along the center line CL1 of the outlet hole 38 of the injection flow path 36 is referred to as the front-rear direction X, and the horizontal direction orthogonal to the front-rear direction X is referred to as the left-right direction Y. Of both sides of the front-rear direction X, the injection direction of the injection member 32 is referred to as the front side (left side of the paper surface in FIG. 3), and the opposite side is referred to as the rear side (right side of the paper surface in FIG. 3).

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

The outer component 44 includes an inner cylinder portion 48 to which the injection member 32 is connected, and an outer cylinder portion 50 to which the inner component 46 is detachably connected. The inner cylinder 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 tubular body that is inserted into the through hole 30 of the bathtub 16, and the injection member 32 is inserted inside the tubular body. The inner component 46 is connected to the outer cylinder portion 50 of the outer component 44 via a screw structure 52. The screw structure 52 is a combination of a male screw portion 52a and a female screw portion 52b formed on each of the outer component 44 and the inner component 46. The outer component 44 and the inner component 46 of the present embodiment sandwich the base 28 by screwing the male threaded portion 52a into the female threaded portion 52b of the threaded structure 52. As a result, the fixing member 40 is fixed to the base 28.

The injection member 32 includes a connecting portion 54 connected to the support 34. The connecting portion 54 of the present 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 regulates the movement of the injection member 32 in the insertion direction of the connecting portion 54 with respect to the inner cylinder portion 48 by contact with the opening peripheral portion of the inner cylinder portion 48.

A central hole 42a is formed in the pressing member 42. The injection member 32 includes a protruding portion 58 protruding from the central hole 42a of the pressing member 42. The protruding 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 on the rear side of the protruding portion 58, that is, a part of the injection member 32.

The injection member 32 includes a brim-shaped pressing portion 60 provided on the rear side of the protruding portion 58 of the injection member 32. The pressing member 42 regulates the movement of the injection member 32 in the detaching direction with respect to the fixing member 40 by contacting the opening peripheral edge portion of the central hole 42a with the pressed portion 60 of the injection member 32. As a result, the pressing member 42 fixes the position of the injection member 32 with respect to the fixing member 40 in the front-rear direction X. The withdrawal direction here means a direction opposite to the above-mentioned insertion direction.

The discharge device 10 further includes a feed flow path 62 that sends the liquid supplied from the liquid supply passage 22 to the injection member 32, and a return flow path 64 that returns the bathtub water W taken in from the bathtub 16 to the liquid supply passage 22. Be prepared. 3 and 5 show a flow direction 62A of a part of the liquid in the feed flow path 62 and a flow direction 64A of a part of the liquid in the return flow path 64. The downstream portion of the feed flow path 62 is formed inside the inner cylinder portion 48 of the support 34. The return flow path 64 is formed between the injection member 32 and the support 34, and between the outer cylinder portion 50 and the inner cylinder portion 48 of the support body 34. In the present embodiment, a plurality of water passage holes 66 for communicating the internal space of the bathtub 16 and the return flow path 64 are formed in the holding member 42.

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

Refer to FIGS. 6 and 7. The injection flow path 36 is formed with a main flow path 70 into which the liquid flows in from the liquid supply passage 22, and the above-mentioned outlet hole 38 for discharging the liquid in the main flow path 70 to the outside.

The injection flow path 36 includes a pair of facing surfaces 72 facing in the height direction H and a pair of inner side surfaces 74 facing in the width direction W. Here, the height direction H and the width direction W refer to directions orthogonal to the center line CL2 of the injection flow path 36 and orthogonal to each other. The center line L2 here refers to the center line 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 shape in a cross section orthogonal to the center line CL2. In this cross section, the main flow path 70 of the present embodiment has a rectangular shape in which the height dimension Lh along the height direction H is smaller than the inner width dimension Lw along the inner width W.

The injection 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 symmetrical to the center line CL2 in the height direction H 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 satisfied at least in the main flow path 70, and in the present embodiment, also in the outlet hole 38.

The outlet hole 38 opens on the outer surface of the injection member 32. The outlet hole 38 of the present embodiment opens at the front surface of the jet member 32, and the jet member 32 jets the jet J forward 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 toward the front side (upper side of the paper surface in FIG. 6). The outlet hole 38 is formed so that the inner width dimension continuously expands toward the front side.

Refer to FIGS. 6 and 8. The injection member 32 is a fluid element 76 capable of performing rocking injection. The oscillating injection means an injection in which the injection direction Da of the jet flow J changes with time so as to oscillate in a plane. By this rocking jet, the wavy jet J propagates radially from the jet member 32. 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. "Swing in a plane" is synonymous with swinging in a plane around the center Sc of the swing in the direction axis of the injection direction. Even when the injection direction slightly fluctuates in the normal direction of the plane in the process of swinging the injection direction Da in the plane, the condition of "swing in the plane" is satisfied. For example, even when the injection direction Da deviates from the plane by ± 10 ° in the normal direction of the plane, the condition of “swing in the plane” is satisfied.

In order to realize rocking injection, the injection member 32 of this embodiment has the following configuration. Specifically, the main flow path 70 includes an inlet flow path 78 in which the liquid flows in from the liquid supply passage 22, a pair of

intermediate flow paths

80A and 80B in which the liquid flows in from the inlet flow path 78, and a pair of

intermediate flow paths

80A and 80B. It is provided with a merging chamber 82 in which the liquids flowing in from each of the above are merged.

The injection flow path 36 includes a first wall portion 84 that blocks the flow of liquid toward the downstream side in the inlet flow path 78. The 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 include 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 injection flow path 36 includes a second wall portion 86 that blocks the flow of liquid toward the downstream side in the confluence chamber 82. An outlet hole 38 is formed in the second wall portion 86.

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

The liquid that has flowed into the inlet flow path 78 flows into the merging chamber 82 via the pair of

intermediate flow paths

80A and 80B. The first intermediate flow path 80A injects the first internal jet F1 into the merging chamber 82. The second intermediate flow path 80B injects the second internal jet F2 into the merging chamber 82. These jets F1 and F2 are affected by fluctuations caused by the randomness of the liquid, and one of them becomes a dominant flow having a stronger force than the other (hereinafter referred to as a dominant flow). 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 flow of the second internal jet F2 is obstructed by the 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 merging chamber 82 and merges with the second internal jet F2, and the momentum of the second internal jet F2. Amplifies. As a result, the second internal jet F2 switches to the second flow state in which it becomes the dominant flow.

As shown in FIG. 10, when in the second flow state, the flow of the first internal jet F1 is obstructed by the 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 merging chamber 82 and merges with the first internal jet F1, and the momentum of the first internal jet F1. Amplifies. As a result, the first internal jet F1 is switched to the first flow state in which it becomes the dominant flow.

As a result of the above, 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 that passes through the outlet hole 38. This liquid flow F3 has a velocity vector toward one side (right side in the figure) and the front side in the width direction W. When in the second flow state, the second internal jet F2 forms a liquid flow F4 that passes through the outlet hole 38. This liquid flow F4 has a velocity vector toward the other side (left side in the figure) and the front side in the width direction W. By periodically switching these flow states, the magnitude (vector amount) of the velocity vector in the width direction W of the liquid flows F3 and F4 passing through the outlet hole 38 periodically increases or decreases. As a result, the oscillating injection in which the jet direction Da of the jet J oscillates in the plane P (see FIGS. 3 and 4) is executed. The injection member 32, which is the fluid element 76, can independently perform the swing injection in this way while remaining stationary. In the present embodiment, this "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.

Refer to FIGS. 1 and 3. When the bathtub water W is stored in the bathtub 16, the injection member 32 is arranged below the water surface WS of the bathtub water W. The injection member 32 injects jet J in the bathtub water W stored in the bathtub 16. Inside the injection member 32, the bathtub water W flowing in from the bathtub 16 is stored when the injection of the jet stream J is stopped.

The effects of the above discharge device 10 will be described. See FIGS. 11A-11C. Assuming that the jet J propagates without receiving other fluids, the locus drawn by the jet J is called the jet locus JT. The jet locus JT obtained by rocking injection has a fan shape that radiates from the injection member 32. This jet locus JT includes a pair of end regions R1 provided on both sides of the rocking direction Db of the jet J, and an intermediate region R2 provided between them.

The jet J obtained by the rocking injection moves so as to hit the same part of the user in one rocking cycle. In particular, the jet J passing through the end region R1 of the jet locus JT moves so as to fold back. Therefore, the time interval for hitting 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 locus JT moves linearly. Therefore, the time interval for hitting the same part of the user becomes relatively short (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 intermediate region R2 can easily give a relatively weak stimulus to the user. That is, although there are differences in the sensation received by the user, the strength of the stimulus given by the jet tends to have a large contrast depending on the position in the jet trajectory JT. For example, a jet J passing through the end region R1 can give a strong stimulus to the vicinity of both flanks of the user, and a jet J passing through the intermediate region R2 can give a weak stimulus to the vicinity of the user's spine.

Refer to FIG. 12A. On the other hand, the jet locus JT obtained by swirling injection has a three-dimensional conical surface shape that radiates from the injection member. The jet J passing through such a jet locus JT does not move so as to hit the same portion of the user in one turning cycle. Therefore, unlike the jet J obtained by the rocking jet, the time interval of hitting the same part of the user becomes close to constant depending on the position of the jet locus JT. Therefore, it is difficult to make a large contrast between the strength of the stimulus given by the jet.

(A1) The discharge device 10 of the present embodiment includes an injection member 32 capable of performing rocking injection. Therefore, such a strong and weak stimulus can be given to the user, and the stimulus given to the user by the jet J can be diversified. In particular, in order to obtain such an effect, it is not necessary to control the output of the pump 24, so that the discharge system 18 can be simplified.

When jetting jet J is injected in bathtub water W, the momentum of jet J is gradually weakened by involving the bathtub water W. Therefore, the farther the distance from the jet member 32 is, the weaker the momentum when the jet J hits the user. Utilizing this, the user can adjust the strength when the jet stream J hits by adjusting the distance of the user to the jet member 32.

Refer to FIGS. 12A to 12C. If the injection member 32 executes swirling injection, the jet locus JT has a three-dimensional conical surface shape. Therefore, when the user's distance from the jet member 32 is increased, the cross-sectional shape of the jet locus JT changes significantly in two dimensions (see FIGS. 12B and 12C). Therefore, when adjusting the distance of the user to the injection member 32, it becomes difficult for the user to intuitively grasp the position where the jet flow J hits.

(A2) Refer to FIGS. 13A and 13B. When the jet member 32 performs the rocking jet in the bath water W, the jet locus JT has a flat fan shape because it is hardly affected by gravity. Therefore, even if the cross-sectional shape of the jet locus JT changes when the user distances from the jet member 32, the change can be limited to a large one-dimensional change (see FIGS. 13A and 13B). Therefore, when adjusting the distance of the user with respect to the injection member 32, the user can easily intuitively grasp the position where the jet flow J hits. As a result, the distance and position with respect to the injection member 32 can be easily adjusted so that the jet flow J having a desired strength hits a desired position of the user as compared with the case of executing the swirling injection.

(A3) The jet member 32 injects jet J in the bath water W. Therefore, the jet J can be applied to the user while involving the bathtub water W. Therefore, the range in which the jet J hits the user can be expanded as compared with the case where the jet J is injected in the air. In addition to this, unlike the case where the jet J is injected in the air, it is possible to avoid a situation in which the surroundings are unintentionally wet due to the scattering of fine droplets.

(A4) The injection member 32 can radially inject a wavy jet J propagating over a wide range by executing rocking jet. Therefore, the number of discharge devices 10 required to propagate the jet J over a wide range can be reduced. Along with this, the number of cleaning points can be reduced and the cleaning work can be facilitated.

(A5) The injection member 32 is a fluid element 76 capable of performing rocking injection. Therefore, a dedicated power source is not required to change the injection direction of the jet J with time, and the discharge device 10 can be simplified.

Other features of the discharge device 10 will be described. See FIGS. 3 and 4. The support 34 of the present embodiment movably supports the injection member 32. In order to realize this, the connecting portion 54 of the injection member 32 is rotatably connected to the inner cylinder portion 48 of the support body 34. The support 34 rotatably supports the injection member 32 around the rotation center line CL4. The rotation center line CL4 is provided coaxially with the center axis (not shown) of the inner cylinder portion 48. In the present 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 operation unit 88 that is operated by the user when the injection member 32 is moved. The operation unit 88 of the present embodiment is formed by an outer peripheral portion of the protrusion 58.

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

Refer to FIG. The alternate long and short dash line in the figure corresponds to the position of the jet locus JT in FIG. 13B. The user can adjust the position of the jet locus JT by moving the jet member 32. In the present embodiment, the position of the jet locus JT can be adjusted to rotate around the center line CL3 of the jet locus JT by rotating the jet member 32 around the rotation center line CL4. FIG. 15 shows the position Pb1 of the injection locus JT when the injection member 32 is in the first position Pa1 and the position Pb2 of the injection locus JT when the injection member 32 is in the second position Pa2.

Refer to FIGS. 3 and 15. When the injection member 32 is arranged at the first position Pa1, the injection member 32 is provided at a position such that the width direction W (the direction orthogonal to the paper surface of FIG. 14) of the injection flow path 36 is along the left-right direction Y. As a result, the injection member 32 can perform rocking injection so that the injection direction swings left and right. As a result, the injection locus JT is drawn so as to radiate in the left-right direction Y as shown by the position Pb1.

Refer to FIGS. 14 and 15. When the injection member 32 is arranged at the second position Pa2, the injection member 32 is provided at a position such that the height direction H of the injection flow path 36 (the direction orthogonal to the paper surface in FIG. 14) is along the left-right direction Y. As a result, the injection member 32 can perform rocking injection in which the injection direction swings up and down. As a result, the jet locus JT is drawn so as to spread in a direction orthogonal to the center line CL3 of the jet locus JT and the left-right direction Y, as shown at the position Pb2.

(B1) The support 34 of the present embodiment movably supports the injection member 32. Therefore, when the rocking injection is executed, the position of the jet locus JT can be adjusted according to the user's preference by moving the injection member 32.

(B2) In particular, the injection member 32 executes rocking injection. Therefore, as described above, the intensity of the stimulus given by the jet J differs depending on the position in the jet locus JT. By moving such an injection member 32, the position of the end region R1 of the jet locus JT to which a strong stimulus can be applied can be adjusted. Therefore, the position where a strong stimulus can be given to the user can be adjusted according to the preference of the user.

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

Refer to FIG. A seal member 90 is arranged between the connecting portion 54 of the injection member 32 and the inner cylinder portion 48 of the support body 34. A seal member 90 seals between them. The seal member 90 is an elastic body such as rubber. The seal member 90 of the present embodiment is mounted on the groove portion 92 formed on the outer peripheral portion of the injection member 32.

The seal member 90 can regulate liquid leakage from the feed flow path 62 of the support 34 to a location other than the injection flow path 36 of the injection member 32. The “location other than the injection flow path 36” in the present embodiment is the return flow path 64. As a result, the amount of liquid supplied to the injection member 32 can be secured, and the jet flow J having a desired momentum can be stably injected. In general, liquid leakage is likely to occur between a movable element and a fixed element. It is possible to prevent liquid leakage between the injection member 32 as a movable element and the support 34 as a fixed element.

(Second Embodiment) Refer to FIG. The ejection device 10 of the present embodiment has a different injection member 32 as compared with the first embodiment. The center lines CL1 and CL5 of the outlet hole 38 and the main flow path 70 of the injection flow path 36 are provided at positions eccentric from the rotation center line CL4 of the injection member 32 and parallel to the rotation center line CL4. As a result, the center line CL1 of the outlet hole 38 is provided at a position different from that of the rotation center line CL4.

Refer to FIG. In this figure, a jet locus JT obtained by executing rocking injection and a rotation locus RT obtained by rotating the jet locus JT around the center line CL3 are shown. This rotation locus RT indicates the maximum range in which the jet flow JT injected from the injection member 32 can reach when the injection member 32 is rotated around the rotation center line CL4. The solid line trajectories JT and RT are obtained by the structure of the present embodiment. The broken line loci JT and RT are obtained by a structure in which the center line CL1 of the outlet hole 38 and the rotation center line CL4 are coaxial.

(C) According to the present embodiment, as shown in FIG. 17, as compared with the case where the center line CL1 of the outlet hole 38 is provided coaxially with the rotation center line CL4, the jet flow J reaches in rotating the injection member 32. The range can be expanded.

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

(Third Embodiment) Refer to FIG. The ejection device 10 of the present embodiment has a different injection member 32 as compared with the first embodiment. The center lines CL1 and CL5 of the outlet hole 38 and the main flow path 70 of the injection flow path 36 are provided at positions that intersect the rotation center line CL4 of the injection member 32 and are inclined with respect to the rotation center line CL4. As a result, the center line CL1 of the outlet hole 38 is provided at a position different from that of the rotation center line CL4.

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

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

In the present embodiment, the injection member 32 can be arranged between the first position Pc1 and the second position Pc2 by tilting the injection member 32 up and down. When the injection member 32 is arranged at the first position Pc1, the injection member 32 is provided so that the center line CL1 of the outlet hole 38 extends upward toward the front side. In the present embodiment, the center line CL5 of the main flow path 70 also satisfies the same condition. When the injection member 32 is arranged at the second position Pc2, the injection member 32 is provided so that the center line CL1 of the outlet hole 38 extends downward toward the front side. In the present 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 (the direction orthogonal to the paper surface of FIG. 20) of the injection flow path 36 is along the left-right direction Y. As a result, the injection member 32 can perform rocking injection so that the injection direction swings left and right.

The effect of the discharge device 10 of the present embodiment will be described. When the jet of jet J is stopped, the bath water in the jet flow path 36 may be discharged. At this time, by tilting the injection member 32 downward, the bathtub water can be easily discharged from the injection flow path 36 rather than leaving the injection member 32 in the original position (see FIG. 20). As a result, good hygiene can be obtained by avoiding residual bath water in the injection flow path 36.

When the jet of jet J is to be started, it is necessary to supply bath water into the jet flow path 36 until the inside of the jet flow path 36 is filled with bath water. At this time, by tilting the injection member 32 upward, it is possible to easily exhaust the air in the injection flow path 36 rather than leaving the injection member 32 in the original position (see FIG. 19). If air remains in the jet flow path 36, the shape of the jet flow J may be disturbed. For example, when the rocking jet is executed, the amplitude of the wavy jet may be significantly reduced due to the disorder of the shape of the jet J. In this respect, according to the present embodiment, the shape of the jet flow J can be stabilized by facilitating the exhaust of the air in the jet flow path 36.

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

(Fifth Embodiment) Refer to FIG. In this embodiment, the configuration of the discharge device 10 is different from that in the first embodiment. The discharge device 10 includes a power source 94 that drives the injection member 32. The power source 94 is, for example, a motor or the like. The power source 94 can cause the injection member 32 to perform the swing injection by swinging the injection member 32 in the left-right direction Y under the control of the control unit 26.

The discharge device 10 of the present embodiment can obtain the effects described in the above-mentioned (A1) to (A4). As described above, in order to obtain the above-mentioned effects (A1) to (A4), the discharge device 10 cooperates with other elements when the liquid is supplied to the injection member 32, and the injection member 32 alone. It suffices if it is possible to make the injection member 32 perform the swing injection by any of them. The other element here is, for example, a combination of the power source 94 and the control unit 26 as in the fifth embodiment. In the first embodiment and the like, an example in which the swing injection is executed by the injection member 32 alone has been described.

Explain other modifications of each component.

Specific examples of the water supply equipment 12 are not particularly limited, and may be, for example, kitchen equipment, washroom equipment, and the like. Specific examples of the tank body of the water supply equipment 12 are not particularly limited, and for example, a sink such as a kitchen sink or a hand wash sink may be used.

The bathroom facility 14 may be provided with at least a bathtub 16, and may not have a bathroom wall, a washroom floor, or the like.

The liquid source 20 of the discharge system 18 is not limited to the bathtub 16, and may be provided separately from the bathtub 16, for example. The liquid source 20 may be a water supply facility such as a water supply system provided outside the building where the water supply facility 12 is installed. In this case, the discharge system 18 does not need to include the pump 24 because the water in a state where the water supply pressure is applied is supplied to the liquid supply passage 22 from the water supply equipment.

An example was described in which the feed flow path 62 and the return flow path 64 are formed inside the common discharge device 10. In these, the return flow path 64 may be formed in the bathtub 16 at a position different from that of the discharge device 10.

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

The discharge device 10 only needs to be able to inject the jet J so as to hit the user's body, and the position where the jet J hits the user is not particularly limited. For example, the discharge device 10 may inject the jet stream J so as to hit the user's body from the side surface side.

The mounting mode of the support 34 with respect to the base 28 is not particularly limited.

Specific examples of the fluid element 76 capable of performing rocking injection are not particularly limited. For example, a fluid element 76 that utilizes the Karman vortex may be used, or a fluid element 76 that utilizes the Coanda effect may be used.

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

In order to obtain the effects of (B1) to (B3) described above, the jet member 32 may inject jet J in the air. From the same viewpoint, the base 28 to which the injection member 32 is attached may be a target other than the bathtub 16 unlike the embodiment. The base 28 may be, for example, a flange portion forming a peripheral edge portion of the upper end opening of the bathtub 16.

In order to obtain the effects of (B1) and (B2) described above, the support mode of the injection member 32 with respect to the support 34 is not particularly limited. The support 34 may, for example, support the injection member 32 so as to be linearly movable in the front-rear direction X. In addition to this, 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 center line CL5 of the main flow path 70 of the injection flow path 36 may be provided coaxially with the rotation center line CL4.

The embodiments and modifications have been described above. In understanding the technical idea that abstracts the embodiment and the modified example, the technical idea should not be construed as limited to the contents of the embodiment and the modified example. The above-described embodiments and modifications are merely specific examples, and many design changes such as modification, addition, and deletion of components are possible. In the embodiment, the content in which such a design change is possible is emphasized by adding the notation “embodiment”. However, design changes are allowed even if there is no such notation. The hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached.

Any combination of the above components is also effective as an aspect of the technical idea that abstracts the embodiment and the modified example. For example, any description of the other embodiment may be combined with the embodiment, or any description of the embodiment and the other modification may be combined with the modification.

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

(First item) An injection member capable of performing motion injection in which the injection direction of the jet flow changes with time, and a support that rotatably supports the injection member are provided, and the injection member is provided with the injection flow. A jet device in which an injection flow path for injecting water is formed, and the center line of an outlet hole of the injection flow path is provided at a position different from the rotation center line of the injection member.

The motion injection here includes, for example, any of the above-mentioned swing injection and swirl injection. Swirling injection refers to injection in which the jet direction of the jet swirls around the swirling center line. By swirling jet, a spiral jet propagates radially from the jet member.

10 ... Discharge device, 12 ... Water supply equipment, 14 ... Bathroom equipment, 16 ... Bathtub, 32 ... Injection member, 34 ... Support, 36 ... Injection flow path, 38 ... Outlet hole, 76 ... Fluid element.

Claims

An injection member capable of performing rocking jets in which the jet direction swings in a plane, and
A discharge device including a support that movably supports the injection member.
The discharge device according to claim 1, wherein the support rotatably supports the injection member.
An injection flow path for injecting the jet is formed in the injection member.
The discharge device according to claim 2, wherein the center line of the outlet hole of the injection flow path is provided at a position different from the rotation center line of the injection member.
The discharge device according to any one of claims 1 to 3, wherein the support supports the injection member so as to be tiltable up and down.
The discharge device according to any one of claims 1 to 4, wherein the injection member is a fluid element capable of executing the rocking injection.
A water supply facility provided with the discharge device according to any one of claims 1 to 5.