JP7441618B2 - Discharge device and bathroom equipment - Google Patents

Description

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

A discharge device that sprays a jet stream may be incorporated into plumbing equipment such as bathroom equipment. In recent years, attempts have been made to diversify the stimulation that jets provide to users. As an example of this, Patent Document 1 describes a discharge device in which a jet flow path for jetting a wavy jet is formed in the device main body.

Special Publication No. 2008-517762

As a result of further investigation, the inventor of the present application has come to the following new understanding. The trajectory of the jet stream injected from the injection flow path is referred to as a jet flow trajectory, and the direction in which the jet flow path injects the jet flow trajectory is referred to as an injection direction. In order to apply the jet to a desired position, it is necessary to design the position of the jet flow path so that the injection direction of the jet flow trajectory is in an appropriate direction. In this case, as will be described later, if the position of the entire injection flow path is changed while the arrangement position of the apparatus main body remains the same, the dimensions of the entire apparatus main body in a particular direction will increase. This is a generally common problem when the jet flow path injects a moving jet such as a wavy jet or a spiral jet. The technique disclosed in Patent Document 1 was not devised from this point of view, and there was room for improvement.

One of the objects of the present disclosure is to provide a technology that can realize a design that changes the injection direction of the jet trajectory while reducing the size of the device main body.

An aspect of the present disclosure for solving the above-mentioned problems is a discharge device. This discharge device includes a device main body in which an injection flow path is formed, an induction flow path provided in the injection flow path for inducing a motion jet, and a motion flow path provided in the injection flow path and induced by the induction flow path. An outlet hole is provided for injecting a jet stream to the outside, and the hole center line thereof is provided at a position different from the flow path center line of the induced flow path.

FIG. 1 is a configuration diagram of the discharge system of the first embodiment viewed from the side. FIG. 2 is a side sectional view of the discharge device of the first embodiment. 3 is a sectional view taken along line AA in FIG. 2. FIG. It is a figure which shows the state which is injecting a kinetic jet. 4 is a sectional view taken along line BB in FIG. 3. FIG. It is a figure which shows the 1st flow state. It is a figure which shows the 2nd flow state. FIG. 3 is an enlarged view of FIG. 2. FIG. 3 is a diagram showing how liquid flows around the outlet hole of the first embodiment. It is a schematic diagram of the discharge device of the 1st reference form. It is a schematic diagram of the discharge device of a 2nd reference form. It is a schematic diagram of the discharge device of a 1st embodiment. FIG. 3 is a cross-sectional view showing a cross section of a wavy jet. FIG. 7 is a cross-sectional view showing another cross section of the wavy jet. FIG. 9 is a diagram of the ejection device of the second embodiment viewed from the same viewpoint as FIG. 8; FIG. 7 is a diagram showing how liquid flows around the outlet hole of the second embodiment. It is a figure which shows the state in which the movable member of 3rd Embodiment is in a 1st position. It is a figure which shows the state in which the movable member of 3rd Embodiment is in a 2nd position. It is a schematic diagram seen from the front of a discharge device of a 3rd embodiment. It is a block diagram which looked at the discharge system of 4th Embodiment from the side. It is a figure which shows the way the liquid flows around the exit hole of 5th Embodiment.

An example of an embodiment will be described below. Identical components are given the same reference numerals and redundant explanations will be omitted. In each drawing, some components are omitted, enlarged, or reduced as appropriate for convenience of explanation. The drawings should be viewed according to the direction of the symbols. The structures and shapes referred to in this specification include not only structures and shapes that exactly match what is being referred to, but also structures and shapes that are deviated by errors such as dimensional errors and manufacturing errors.

(First Embodiment) Refer to FIG. 1. The discharge device 10 is used in water equipment 12. The plumbing equipment 12 of this embodiment is a bathroom equipment 14 and includes a bathtub 16. In addition to this, the bathroom equipment 14 includes a bathroom wall, a washing area floor, and the like. The bathtub 16 is an example of a tank body that can receive the jet J jetted from the discharge device 10.

Dispensing device 10 is used in dispensing system 18 . The discharge system 18 includes a storage tank 20 that stores liquid W to be ejected, a liquid supply path 22 that supplies the liquid W from the storage tank 20 to the discharge device 10, and a pump 24 provided in the middle of the liquid supply path 22. A control unit 26 that controls the pump 24 is provided. The storage tank 20 of this embodiment is a bathtub 16 that stores bathtub water as the liquid W to be sprayed. The pump 24 supplies the liquid W to the discharge device 10 through the liquid supply path 22 by force-feeding the liquid W sucked from the storage tank 20 under the control of the control unit 26 . The control unit 26 is a computer that combines hardware and software such as a CPU, ROM, and RAM.

The ejection device 10 of this embodiment ejects a single-phase liquid jet J. The discharge device 10 of this embodiment injects bath water circulating through the liquid supply path 22 by the pump 24. The jet stream J of this embodiment can be applied to the user's body, particularly the back of the user who is in a sitting position in the bathtub 16, from the back side. Thereby, a massage effect can be given to the user.

Refer to FIGS. 2 and 3. The discharge device 10 includes a device main body 28. The device main body 28 is attached to a wall-shaped base 30 provided in the plumbing equipment 12. The base 30 of this embodiment is a flange portion forming the peripheral edge of the upper end opening of the bathtub 16.

The device main body 28 is formed with an injection channel 32 through which liquid is supplied from the liquid supply channel 22 . The liquid W is supplied upward from the liquid supply path 22 to the injection flow path 32 of this embodiment via a relay flow path 34 formed in the device main body 28 .

See FIG. 4. The jet flow path 32 jets the liquid W supplied from the liquid supply path 22 as a moving jet J. The moving jet J here refers to a jet whose traveling direction when exiting from the injection flow path 32 to the outside changes periodically, that is, over time. The jet flow path 32 is capable of jetting the kinetic jet J by temporally changing the jet jet direction Da. The jet flow path 32 of this embodiment jets a wavy jet radially as a moving jet J by swinging the jet jet direction Da within a plane. This "injection direction Da" is based on the time when the jet flow exits from the injection flow path 32 to the outside. “Wavy” refers to a shape that periodically undulates in a direction perpendicular to the trajectory center Ct of the jet trajectory JT formed by the moving jet J as it moves away from the injection flow path 32. This "wavy" includes not only a shape that satisfies strict physical conditions as a wave, but also a shape similar to that shape. The injection flow path 32 of this embodiment injects a kinetic jet J into the air. The device main body 28 constitutes a fluid element that ejects a moving jet J while remaining stationary.

Please refer to FIGS. 2 to 5. The injection flow path 32 includes an induction flow path 36 that induces the kinetic jet J, and an outlet hole 38 that injects the kinetic jet J induced by the induction flow path 36 to the outside. In this specification, a direction along a line obtained by projecting the flow path center line CL1 of the induced flow path 36 onto a horizontal plane is referred to as the front-rear direction A. Of both sides in the front-rear direction A, the injection direction of the injection flow path 32 is referred to as the front side (left side in the paper of FIG. 2), and the opposite side is referred to as the rear side (right side in the paper of FIG. 2).

The direction of the center line of the induced flow path 36 along the flow path center line CL1 is referred to as the X direction. The X direction in this example coincides with the front-rear direction A. This flow path center line CL1 is located on the center of gravity line that connects the geometric centers of gravity of the induced flow path 36. This "center of gravity" refers to the center of gravity of the entire plurality of intermediate flow paths 42A and 42B at a location where the induced flow path 36 of this embodiment is divided into a plurality of intermediate flow paths 42A and 42B (described later). . It is assumed that the flow path center line CL1 extends in a straight line on the downstream side of the downstream end 36a of the induced flow path 36 along the tangential direction of the center of gravity line passing through the downstream end 36a.

The Y direction and the Z direction, which are orthogonal to the channel center line CL1 and mutually orthogonal, are respectively referred to as the width direction and the height direction. The Y direction in this embodiment is also the vibration direction of the wavy jet J. This vibration direction refers to the direction in which waves formed by the wavy jet J vibrate when the wavy jet J exits from the injection flow path 32 to the outside in a plane orthogonal to the flow path center line CL1.

The induced flow path 36 of this embodiment has a rectangular shape in which the height Lz along the Z direction is smaller than the inner width Ly along the Y direction in a cross section perpendicular to the X direction. The induced flow path 36 has a cross-sectional shape that is symmetrical in the Z direction with respect to the flow path center line CL1 when viewed from the X direction (viewed from the viewpoint of FIG. 5). The induced flow path 36 has a cross-sectional shape that is symmetrical in the Y direction with the flow path center line CL1 of the induced flow path 36 as an axis of symmetry when viewed from the Z direction (viewed from the viewpoint of FIG. 3). In this embodiment, this condition also meets the exit hole 38.

The induced flow path 36 includes an inlet flow path 40 into which the liquid flows from the liquid supply path 22, a pair of intermediate flow paths 42A and 42B into which the liquid flows from the inlet flow path 40, and a pair of intermediate flow paths 42A and 42B, respectively. It is provided with a merging chamber 44 where liquids flowing from the merging chamber 44 merge.

A first wall portion 46 is provided within the induced flow path 36 to block the flow of liquid toward the downstream side within the inlet flow path 40 . The pair of intermediate flow paths 42A and 42B are provided on both sides of the first wall portion 46 in the width direction Y. The pair of intermediate channels 42A and 42B are a left intermediate channel 42A (first intermediate channel) provided on one side in the width direction Y, and a right intermediate channel 42B (second intermediate channel) provided on the opposite side. including. The induced flow path 36 is provided with a second wall portion 48 that blocks the flow of liquid toward the downstream side within the merging chamber 44 . The second wall portion 48 separates the internal space of the induced flow path 36 from the external space of the device main body 28, and the outlet hole 38 passes through the second wall portion 48 in the X direction.

The outlet hole 38 is formed at the downstream end of the injection channel 32 . The outlet hole 38 opens on the outer surface of the device body 28. The outlet hole 38 of this embodiment opens at the front face of the device main body 28, and the device main body 28 injects the kinetic jet J forward. The outlet hole 38 has a shape that restricts the flow of liquid within the induced channel 36 . In order to realize this, the inner width dimension of the outlet hole 38 in this embodiment is set to be smaller than the inner width dimension of the induction flow path 36 on the way to the upstream side of the injection flow path 32. The exit hole 38 is formed so as to continuously widen in a direction perpendicular to the X direction (in this example, the Y direction) as it goes toward the front side.

The operation of the injection flow path 32 of this embodiment will be explained. Refer to FIGS. 6 and 7. In this figure, the main flow directions of the liquid are indicated by arrows.

The liquid that has entered the inlet channel 40 flows into the merging chamber 44 via a pair of intermediate channels 42A and 42B. The left intermediate flow path 42A injects the left internal jet flow F1 (first internal jet flow) into the merging chamber 44. The right intermediate flow path 42B injects the right internal jet F2 (second internal jet) into the merging chamber 44. These jet flows F1 and F2 are influenced 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. 6 shows a first flow state in which the left internal jet flow F1 is the dominant flow. FIG. 7 shows a second flow state in which the right internal jet flow F2 is the dominant flow.

As shown in FIG. 6, in the first flow state, the flow of the right internal jet F2 is obstructed by collision with the left internal jet F1. On the other hand, the left internal jet flow F1 flows with momentum until it collides with the second wall portion 48. This left internal jet flow F1 turns back within the merging chamber 44 and merges with the right internal jet flow F2, thereby amplifying the momentum of the right internal jet flow F2. As a result, the flow state is switched to the second flow state in which the right internal jet flow F2 becomes the dominant flow.

As shown in FIG. 7, in the second flow state, the left internal jet F1 is obstructed by collision with the right internal jet F2. On the other hand, the right internal jet flow F2 flows with momentum until it collides with the second wall portion 48. This right internal jet flow F2 turns back within the merging chamber 44 and merges with the left internal jet flow F1, thereby amplifying the momentum of the left internal jet flow F1. As a result, the state is switched to the first flow state in which the left internal jet flow F1 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 left internal jet F1 forms a liquid stream F3 passing through the outlet hole 38. This liquid flow F3 has a velocity vector toward one side in the Y direction (the right side in the figure) and toward the front side. When in the second flow state, the right internal jet F2 forms a liquid stream F4 passing 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 Y direction. By periodically switching these flow states, the magnitude of the velocity vector (vector amount) in the Y direction of the liquid flows F3 and F4 passing through the outlet hole 38 increases and decreases periodically. As a result, the jet direction Da of the jet flow J swings within the plane, so that the aforementioned wavy jet flow J is jetted.

In injecting the wavy jet J (kinetic jet J) in this way, the induced flow path 36 internally generates an induced flow that induces the dynamic jet J. In this embodiment, these "induced flows" are internal jet flows F1 and F2. The outlet hole 38 injects the kinetic jet J induced by the induced flow path 36 to the outside.

Refer to FIG. In the above discharge device 10, the hole center line CL2 of the outlet hole 38 is provided at a different position from the flow path center line CL1 of the induced flow path 36. The hole center line CL2 here refers to a line passing through the geometric center of gravity of the outlet hole 38. In this embodiment, this condition is satisfied when viewed from the Y direction (when viewed from the viewpoint in FIG. 8).

The hole center line CL2 is provided at a position intersecting the channel center line CL1 when viewed from the Y direction. The hole center line CL2 is provided so as to continuously move away from the flow path center line CL1 to one side in the Z direction as it goes forward from the intersection P with the flow path center line CL1. In this embodiment, one side in the Z direction is the lower side in the vertical direction. In this embodiment, the channel center line CL1 is provided in a straight line, and the hole center line CL2 is provided in a straight line. In this embodiment, when viewed from the Z direction, the flow path center line CL1 and the hole center line CL2 are each provided in a straight line and are provided at positions overlapping each other (see FIG. 3).

The induced flow path 36 includes a first flow path surface 50 and a second flow path surface 52 facing each other in the Z direction. The outlet hole 38 includes a first hole surface 54 and a second hole surface 56 facing each other in the Z direction. The first flow path surface 50 and the first hole surface 54 are provided on the lower side in the vertical direction, which is one side in the Z direction, and the second flow path surface 52 and the second hole surface 56 are provided on the lower side in the vertical direction, which is the other side in the Z direction. provided on the upper side of the direction.

The first hole surface 54 includes a first height changing surface 58 that is provided so as to move away from the channel center line CL1 in the Z direction as it goes downstream. The first height changing surface 58 of this embodiment has a linear shape in a cross section perpendicular to the Y direction. Details of the first height changing surface 58 will be described later.

The second hole surface 56 is provided at a position where it avoids interference with the liquid W flowing along the X direction from within the induced flow path 36 (hereinafter referred to as an interference avoidance position). In order to provide the second hole surface 56 at the interference avoidance position, the second hole surface 56 of this embodiment is aligned with the flow path center line CL1 on the extension line in the X direction of the downstream end 52a of the second flow path surface 52. installed in parallel.

See FIG. 9. The inventor of the present invention obtained the following findings through experimental studies. When the first hole surface 54 is provided with the first height change surface 58 and the second hole surface 56 is provided at the interference avoidance position, the wavy jet J flowing out from the induced flow path 36 has the first height change surface 58. Forces Fa and Fb are applied to bring them closer. Specifically, a force Fa is applied to the first portion J1 of the wavy jet J on the first hole surface 54 side to draw it toward the first height change surface 58. As a result, the first portion J1 of the wavy jet flow J tends to flow along the first hole surface 54 while bending its flow direction toward the first hole surface 54 side. At the same time, a force Fb is applied to the second portion J2 of the wavy jet flow J on the second hole surface 56 side so as to approach the first hole surface 54 side. As a result, the second portion J2 of the wavy jet flow J also tends to flow along the first hole surface 54 while bending its flow direction toward the first hole surface 54 side.

As a result of these factors, the injection flow path 32 as a whole can emit a jet flow trajectory JT with the injection direction Db not in the X direction along the flow path center line CL1 but in a direction close to the hole center line CL2 of the outlet hole 38. This condition is achieved by providing the channel center line CL1 and the hole center line CL2 at different positions. In this figure, for convenience of explanation, the jet flow trajectory JT is shown in an exaggerated manner compared to the actual one.

The reason why the above mechanism is obtained is not clear. The present inventor assumes that one of the causes of the force Fa applied to the first portion J1 of the wavy jet J is the Coanda effect. In addition to this, it is presumed that the cause of the force Fb applied to the second portion J2 of the wavy jet J is the surface tension that increases as the position of the first portion J1 changes.

From the viewpoint of obtaining the above-mentioned Coanda effect, it is preferable that separation of the liquid flowing along the X direction on the first flow path surface 50 of the induced flow path 36 at the first height change surface 58 can be avoided. From this point of view, it is preferable that the first height changing surface 58 has a planar shape, and more preferably a convex curved shape. From another point of view, the first height changing surface 58 preferably has a straight line shape, and more preferably has a convex arc shape in a cross section perpendicular to the Y direction.

From the viewpoint of suppressing the influence on the flow within the induced flow path 36, it is preferable that the first height changing surface 58 is provided only at a position overlapping with the first hole surface 54 when viewed from the Z direction. From another point of view, it is preferable that the upstream end 58a of the first height changing surface 58 be provided downstream from the boundary 60 between the induced flow path 36 and the outlet hole 38. The first height changing surface 58 of this embodiment is provided over the entire range of the first hole surface 54 in the X direction. In addition, the first height changing surface 58 may be provided in a part of the first hole surface 54 in the X direction.

From the viewpoint of effectively obtaining the above Coanda effect, it is preferable that the first height changing surface 58 has a wider range of overlap with the first hole surface 54 in the X direction when viewed from the Z direction. From this point of view, it is preferable that the upstream end 58a of the first height change surface 58 be provided at the boundary 60 between the induced flow path 36 and the outlet hole 38.

The effects of the above discharge device 10 will be explained. Please refer to FIGS. 10A and 10B. In the discharge device 10 of the reference embodiment shown in FIGS. 10A and 10B, unlike the discharge device 10 of the embodiment, the flow path center line CL1 of the induced flow path 36 and the hole center line CL2 of the outlet hole 38 are provided on the same axis. The injection direction Db of the jet flow trajectory JT in FIG. 10B is provided downward toward the front compared to the jet flow trajectory JT in FIG. 10A. With this structure, when changing the injection direction Db of the jet trajectory JT while leaving the arrangement position of the device main body 28 unchanged, it is necessary to change the position of the entire injection flow path 32. This results in an increase in the dimension La of the entire device body 28 in a particular direction. The injection flow path 32 has a longer shape in the X direction than in other directions, and this problem becomes apparent due to this shape. In this embodiment, this "specific direction" refers to the height direction (Z direction) of the injection flow path 32 in the example of FIG. 10A.

(A) See FIG. 10C. The hole center line CL2 of the outlet hole 38 in this embodiment is provided at a different position from the flow path center line CL1 of the induced flow path 36. Consider a case where the injection direction Db of the jet flow trajectory JT is changed while leaving the arrangement position of the device main body 28 in the structure of FIG. 10A unchanged. In this case, according to the present embodiment, it is sufficient to leave the position of the induced flow path 36 unchanged and change the arrangement position of the outlet hole 38. Therefore, even if the injection direction Db of the jet flow trajectory JT is changed to a direction different from the X direction, an increase in the dimension La of the entire device main body 28 in the specific direction (Z direction) can be suppressed. In other words, it is possible to realize a design that changes the injection direction Db of the jet trajectory JT while reducing the size of the device main body 28 in a specific direction (Z direction).

Let us consider a case where the second hole surface 56 is provided so as to approach the first hole surface 54 side in the Z direction as it goes downstream. This assumes, for example, the structure of the second embodiment described later (see FIG. 12). In this case, the jet flow J injected from within the induced flow path 36 hits the second hole surface 56, and the flow is disturbed. Accordingly, as shown in FIG. 11A, the portion of the wavy jet J that collides with the second hole surface 56 spreads in the vibration direction (Y direction) of the wavy jet J (see range Sa). Furthermore, the beauty of the wavy jet flow J may be spoiled.

In this regard, the second hole surface 56 of this embodiment is provided at an interference avoidance position. Therefore, it is possible to avoid a situation where the liquid flowing in the induced flow path 36 collides with the second hole surface 56 and the flow is disturbed. Accordingly, as shown in FIG. 11B, the beauty of the wavy jet J can be maintained. This effect was obtained through experimental studies by the inventor of the present application. FIG. 11B shows a cross section of an ideally shaped wavy jet J.

(B) The injection flow path 32 of this embodiment includes the second hole surface 56 as described above, and the first hole surface 54 includes the first height changing surface 58. Therefore, even when such a second hole surface 56 is provided, the jet trajectory JT can be ejected with the injection direction Db set in a direction different from the X direction, as described above. That is, according to the present embodiment, it is possible to realize a design in which the jet flow trajectory JT is ejected in a direction different from the X direction while maintaining the aesthetic appearance of the wavy jet flow J.

(Second Embodiment) Refer to FIG. 12. This embodiment differs from the first embodiment in the shape of the outlet hole 38. Specifically, the second hole surface 56 of the outlet hole 38 includes a second height changing surface 62 provided so as to approach the first hole surface 54 side in the Z direction as it goes downstream.

The second height changing surface 62 of this embodiment has a planar shape. From the viewpoint of suppressing the influence on the flow within the induced flow path 36, the second height change surface 62 is provided only at a position overlapping with the second hole surface 56 when viewed from the Z direction. From another perspective, the upstream end 62a of the second height change surface 62 is provided downstream from the boundary 60 between the induced flow path 36 and the outlet hole 38. The second height changing surface 62 of this embodiment is provided over the entire range of the second hole surface 56 in the X direction. In addition, the second height changing surface 62 may be provided in a part of the second hole surface 56 in the X direction.

See FIG. 13. When the second hole surface 56 includes the second height change surface 62, the liquid flowing along the X direction from within the induced flow path 36 can be applied to the second height change surface 62. Accordingly, a force Fc is applied to the second portion J2 of the wavy jet flow J flowing out from the induced flow path 36 to bend its flow direction toward the first hole surface 54 side. As described above, the force Fa that draws the first portion J1 of the wavy jet J toward the first height change surface 58 is applied. The reason for this force Fa is also presumed to be the Coanda effect, as mentioned above.

As a result of these factors, the injection flow path 32 as a whole can emit a jet flow trajectory JT with the injection direction Db not being in the X direction along the flow path center line CL1 but in a direction close to the hole center line CL2 of the outlet hole 38.

As described above, under the structure of the present embodiment, by applying the wavy jet flow J flowing out from within the induced flow path 36 to the second height change surface 62, the force Fc that changes the flow direction can be stably applied. can. Consequently, the injection direction Db of the jet flow trajectory JT can be stably changed from the X direction along the channel center line CL1.

In addition to this, the ejection device 10 of this embodiment can obtain the effects described in (A) above.

(Third Embodiment) Refer to FIGS. 14A, 14B, and 15. 14A and 14B are also diagrams of the discharge device 10 of the third embodiment viewed from the same viewpoint as FIG. 8. This embodiment differs from the first embodiment in that the ejection device 10 includes an adjustment mechanism 64. The adjustment mechanism 64 is capable of adjusting the position of the hole center line CL2 of the outlet hole 38 with respect to the flow path center line CL1 of the induced flow path 36. To achieve this, the adjustment mechanism 64 includes a movable member 66 that constitutes a part of the device main body 28 and is movably supported by the main body portion 28a of the device main body 28, and a power source 68 that drives the movable member 66. Equipped with.

The movable member 66 of this embodiment is a plate material, and is stored in a storage portion 28b formed in the main body portion 28a of the device main body 28. The movable member 66 of this embodiment forms the first hole surface 54 of the outlet hole 38 of the injection flow path 32 . The movable member 66 is movable between the first position P1 and the second position P2. The first hole surface 54 of the movable member 66 is provided so as to extend linearly along the X direction in a cross section perpendicular to the Y direction when in the first position P1. The first hole surface 54 of the movable member 66 is provided so as to form the above-described first height change surface 58 in a cross section perpendicular to the Y direction when the movable member 66 is at the second position P2. That is, the first hole surface 54 of the movable member 66 is provided so as to move away from the channel center line CL1 in the Z direction as it goes downstream.

In this way, the movable member 66 can change the shape of the outlet hole 38 by moving between the first position P1 and the second position P2. In this embodiment, it is possible to move between the first position P1 and the second position P2 by tilting in the Z direction in a cross section perpendicular to the Y direction.

When the movable member 66 is disposed at the first position P1, the hole center line CL2 of the outlet hole 38 is provided coaxially with the channel center line CL1. At this time, the injection direction Db of the jet flow trajectory JT is along the X direction.

When the movable member 66 is arranged at the second position P2, the hole center line CL2 of the outlet hole 38 is provided at a different position from the flow path center line CL1 of the induced flow path 36, as in the first embodiment. At this time, the injection flow path 32 as a whole can eject the jet flow trajectory JT with the direction close to the hole center line CL2 of the outlet hole 38 as the injection direction Db.

The power source 68 is, for example, a motor, an actuator, or the like. The power source 68 drives the movable member 66 to move between the first position P1 and the second position P2 under the control of the control unit 26.

According to this embodiment, the injection direction Db of the jet trajectory JT can be adjusted by the adjustment mechanism 64 according to the user's preference.

In addition to this, the ejection device 10 of this embodiment can obtain the effects described in (A) and (B) above.

(Fourth Embodiment) Refer to FIG. 16. In addition to the injection flow path 32 of the first embodiment, a discharge flow path 70 is formed in the device main body 28 of this embodiment. The discharge flow path 70 discharges the liquid W supplied from the liquid supply path 22 as a discharge flow Fd. The discharge channel 70 opens at the front of the device main body 28 and discharges the discharge flow Fd forward. The discharge flow path 70 is provided above the injection flow path 32 and discharges the discharge flow Fd so as to pass above the motion jet J. The discharge flow Fd is, for example, a film flow, a mist flow, or the like. The discharge flow path 70 discharges the discharge flow Fd so as to hit the user's neck. The jet flow path 32 of this embodiment discharges the kinetic jet J so as to hit the user's shoulder below the user's neck.

Also in this embodiment, the effects described in (A) and (B) above can be obtained. In particular, according to this embodiment, the injection direction Db of the jet flow trajectory JT can be directed downward, compared to the case where the flow path center line CL1 of the induced flow path 36 and the hole center line CL2 of the outlet hole 38 are provided on the same axis. Therefore, compared to this case, the moving jet J can be applied at a position vertically farther away than the discharge flow Fd. Accordingly, compared to this case, the moving jet J and the discharge flow Fd can be applied to vertically separated locations while reducing the size of the device main body 28 in a specific direction (Z direction).

(Fifth Embodiment) Refer to FIG. 17. In FIG. 9, an example has been described in which one side in the Z direction is the lower side in the vertical direction. In this embodiment, one side in the Z direction is the upper side in the vertical direction. The hole center line CL2 is provided so as to move away from the channel center line CL1 toward the upper side in the vertical direction as one side in the Z direction as it goes forward from the intersection P.

In FIG. 9, the first hole surface 54 is provided on the lower side in the vertical direction on one side in the Z direction, and the second hole surface 56 is provided on the upper side in the vertical direction on the other side in the Z direction. explained. In this embodiment, compared to the example of FIG. 9, the first hole surface 54 is provided on the upper side in the vertical direction as one side in the Z direction, and the second hole surface 56 is provided on the lower side in the vertical direction as the other side in the Z direction. The difference is that it is provided on the side. Similar to the example of FIG. 9, the first height changing surface 58 is provided on the first hole surface 54, and the second hole surface 56 is provided at the interference avoidance position.

In this case, as in the example of FIG. 9, forces Fa and Fb are applied to the wavy jet flow J flowing out from the induced flow path 36 to bring it closer to the first height change surface 58. This is a finding obtained by the inventor through experimental studies. Specifically, a force Fa is applied to the first portion J1 of the wavy jet J on the first hole surface 54 side to draw it toward the first height change surface 58. At the same time, a force Fb is applied to the second portion J2 of the wavy jet flow J on the second hole surface 56 side so as to approach the first hole surface 54 side. Similar to the example shown in FIG. 9, the inventor assumes that the Coanda effect is a contributing factor to the force Fa, and that the surface tension is a contributing factor to the force Fb.

As a result, as in the example of FIG. 9, the injection flow path 32 as a whole has an injection direction Db that is not in the X direction along the flow path center line CL1, but in a direction close to the hole center line CL2 of the outlet hole 38. Can fire jet trajectory JT. In addition to vertically upward forces Fa and Fb, downward gravity is applied to the wavy jet flow J of this embodiment. Due to this, the degree to which the injection direction Db of the jet flow trajectory JT approaches the hole center line CL2 of the outlet hole 38 becomes smaller than in the example of FIG. However, compared to the case where the flow path center line CL1 and the hole center line CL2 are provided on the same axis, the injection direction Db of the jet flow trajectory JT can be brought closer to the hole center line CL2 of the outlet hole 38 to some extent.

Also in this embodiment, the effects described in (A) and (B) above can be obtained.

Other modifications of each component will be explained.

Specific examples of the plumbing equipment 12 are not particularly limited, and may be kitchen equipment, washroom equipment, etc., for example. The specific example of the tank body of the plumbing equipment 12 is not particularly limited, and may be, for example, a sink such as a kitchen sink or a hand-washing sink.

The bathroom equipment 14 only needs to include at least a bathtub 16, and does not need to have a bathroom wall, a washing area floor, etc.

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

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

The ejection device 10 only needs to be able to eject 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 ejection device 10 may eject the jet J so as to hit the user's body from the side.

The base 30 to which the device main body 28 is attached may be used for objects other than the bathtub 16, unlike the embodiment.

A specific example of the liquid W to be jetted is not limited to bath water. The liquid W may be, for example, a liquid detergent.

Specific examples of the moving jet J are not limited to wavy jets. The motion jet J may be, for example, a spiral jet jet that is jetted radially by rotating the jet jet direction around a rotation center. In this case, the inducing channel 36 that induces the spiral jet may have a circular cross section perpendicular to the channel center line CL1.

The mechanism for inducing the wavy jet J by the inducing channel 36 is not particularly limited. The induced flow path 36 may, for example, generate a Karman vortex as an induced flow to induce a wavy jet flow, or may induce a wavy jet flow using the Coanda effect.

The shapes of the height changing surfaces 58 and 62 are not particularly limited. The height changing surfaces 58 and 62 may have, for example, a convex curved surface shape, a concave curved surface shape, a planar shape, or the like. In addition to this, the height changing surfaces 58 and 62 may have a convex arc shape, a concave arc shape, a linear shape, etc. in a cross section perpendicular to the Y direction, for example.

The pair of hole surfaces 54 and 56 only need to face each other in the Z direction (height direction), regardless of the vertical direction. In the example of FIG. 17, a second height changing surface 62 may be provided on the second hole surface 56 as in the example of FIG.

Consider a case where the second hole surface 56 is provided at an interference avoidance position, as in the examples shown in FIGS. 9 and 17. In this case, if the injection direction Db is set in a direction closer to the hole center line CL2 than the flow path center line CL1, and the jet flow trajectory JT can be injected, the specific shape of the second hole surface 56 is particularly determined. Not limited. A structure that satisfies this condition may be found, for example, by experiment, analysis, or the like. As an example of this, the second hole surface 56 may be provided so as to move away from the channel center line CL1 in the Z direction as it goes downstream. For example, when this structure is viewed from the Y direction, the angle formed by the second hole surface 56 with respect to the flow path center line CL1 is greater than the angle formed by the first height change surface 58 with respect to the flow path center line CL1. It is assumed that is small.

The upstream ends 58a, 62a of the height change surfaces 58, 62 may be provided upstream of the boundary 60 between the induced flow path 36 and the outlet hole 38.

A specific example of the adjustment mechanism 64 is not particularly limited. For example, unlike the embodiment, the movable member 66 may be able to change the shape of both the first hole surface 54 and the second hole surface 56 of the outlet hole 38, or may be able to change the shape of the entire outlet hole 38. .

The movable member 66 may be, for example, a plate-shaped elastic body that can be flexibly deformed. In this case, the movable member 66 may be movable between the first position P1 and the second position P2, depending on whether or not the movable member 66 is bent or deformed. In addition to this, the movable member 66 may be a bag that expands and contracts. In this case, the movable member 66 may be disposed at the first position P1 by expanding, and may be disposed at the second position P2 by contracting. In this case, the power source 68 is a pump.

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 interpreted to be limited to the content of the embodiment and the modified example. The embodiments and modifications described above are merely specific examples, and many design changes such as changing, adding, or deleting components are possible. In the embodiment, contents that allow such design changes are emphasized by adding the notation "embodiment". However, design changes are allowed even if there is no such notation. The hatching added to the cross section of the drawing does not limit the material of the hatched object.

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

DESCRIPTION OF SYMBOLS 10...Discharge device, 12...Water equipment, 28...Device main body, 32...Injection channel, 36...Induction channel, 38...Outlet hole, 54...First hole surface, 56...Second hole surface, 58...Second hole surface 1 height change surface, 62...second height change surface, 64...adjustment mechanism.

Claims (5)

A device body in which a jet flow path is formed and is attached to a base provided in bathroom equipment;
an inducing flow path provided in the jet flow path and inducing a wavy jet flow ;
an outlet hole provided in the injection flow path, for injecting a wavy jet flow induced by the induced flow path to the outside, and having its own hole center line provided at a position different from a flow path center line of the induced flow path; ,
The outlet hole injects the wavy jet forward and downward toward a bathtub provided in the bathroom equipment ,
The hole center line is provided at a position different from the flow path center line of the induced flow path when viewed from the vibration direction of the wavy jet flow ,
When the direction perpendicular to the center line direction of the induced flow path and the vibration direction is referred to as the height direction,
The exit hole includes a first hole surface and a second hole surface facing in the height direction,
The first hole surface includes a height changing surface that is provided so as to move away from the flow path center line in the height direction toward the downstream side ,
In the discharge device, the height changing surface is not provided upstream of a boundary between the induced flow path and the outlet hole . The discharge device according to claim 1 , wherein the second hole surface is provided at a position to avoid interference with the liquid flowing from within the induced flow path along the center line direction. The discharge device according to claim 1 , wherein the second hole surface includes a second height changing surface provided so as to approach the first hole surface side in the height direction as the second hole surface goes downstream. The discharge device according to any one of claims 1 to 3 , further comprising an adjustment mechanism that can adjust the position of the hole center line with respect to the flow path center line. Bathroom equipment comprising the discharge device according to any one of claims 1 to 4 .

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