JP2009106732A - Shower device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shower device discharging a planar flow of shower-like water in a wide area while changing the discharge trajectories of the water. <P>SOLUTION: This shower device includes: a guide member having a water inflow chamber where wash water flows, and an opening part communicating with the inside/outside of the water inflow chamber; a cylindrical body provided inside the water inflow chamber in such a state that the end of a contracted portion whose diameter is smaller than that of the opening part, is projects from the opening part to the outside of the guide member and allows the wash water flowing into the inflow chamber to exit from the end of the contracted portion; a buffer chamber for temporarily storing the wash water exiting from the end of the contracted part; a contracted part head formed with a plurality of discharge holes which are inclined asymmetric about the central axis of the cylindrical body respectively and communicating with the buffer chamber; and a water spray plate provided at the end of the contracted portion and being large in the radial direction; wherein the cylindrical body swingingly revolves integrally with the head about the central axis of the inflow chamber by the wash water flowing in the inflow chamber while being inclined relative to the central axis of the inflow chamber with at least a part of the contracted portion brought into contact with the opening part, and the cylindrical part rotates integrally with the head about the central axis of itself. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water discharge device that discharges a shower-like water discharge flow while changing the water discharge direction (water discharge trajectory).

2. Description of the Related Art Conventionally, there has been known a water discharge device that discharges water while swinging and revolving or rotating the nozzle by a swirl flow formed in a swirl chamber in which the nozzle is housed (for example, Patent Document 1).
Japanese Patent No. 3518542

  However, in the water discharge device disclosed in Patent Document 1, a line (dot) -like water discharge flow is discharged from one nozzle hole, and the range in which the water discharge hits the human body is also narrow. For example, a shower bath using the water discharge device can be used. It is difficult to obtain a feeling of bathing that efficiently warms a wide area of the body even when trying to do.

  This invention is made in view of the above-mentioned problem, and provides the water discharging apparatus which can discharge a shower-like water discharge flow in surface shape in a wide range, changing a water discharge locus | trajectory.

  According to one aspect of the present invention, a guide member having an inflow chamber into which cleaning water flows, an opening provided through the inside and outside of the inflow chamber, and a reduced diameter portion having a smaller diameter than the opening. And having a tip of the reduced diameter portion projecting from the opening to the outside of the guide member, provided inside the inflow chamber, and supplying the cleaning water flowing into the inflow chamber to the tip of the reduced diameter portion A cylindrical body that can flow out of the cylindrical body, a buffer chamber in which wash water that has flowed out from the tip of the reduced diameter portion is temporarily stored, and each of which is inclined in an asymmetric relationship with respect to the central axis of the cylindrical body, and A plurality of water discharge holes communicating with the buffer chamber and having a water spray plate larger in the radial direction than the reduced diameter portion, and a head provided at a distal end of the reduced diameter portion, wherein the cylindrical body is the inflow At least a part of the reduced diameter portion is washed by the washing water flowing into the chamber. The head is swung around the central axis of the inflow chamber while being tilted with respect to the central axis of the inflow chamber while being in contact with the opening, and the cylinder is revolved around the central axis thereof. In addition, a water discharge device is provided which rotates together with the head.

  ADVANTAGE OF THE INVENTION According to this invention, the water discharging apparatus which can discharge a shower-like water discharge flow in a planar shape in a wide range is provided, changing a water discharge locus | trajectory.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1: shows the schematic cross section of the water discharging apparatus which concerns on embodiment of this invention.
The water discharge device according to the present embodiment mainly includes a guide member 1, a cylindrical body 20, and a head 40.

  The guide member 1 has a structure in which a through hole is formed inside the sphere 2. A swirl chamber (inflow chamber) 3 extending in the diameter direction of the sphere 2 is formed inside the sphere 2. An opening 4 that communicates with the inside and the outside of the swirl chamber 3 is provided at one end of the swirl chamber 3 in the axial direction. The inner diameter dimension of the opening 4 is smaller than the inner diameter dimension of the swirl chamber 3, and the center of the opening 4 coincides with the central axis of the swirl chamber 3. An inflow hole 5 is formed outside the diameter of the swirl chamber 3 on the other end side in the axial direction. The inflow hole 5 communicates with the inside of the swirl chamber 3 and the outside of the sphere 2. The wash water introduced from the outside of the guide member 1 to the inflow hole 5 flows in the tangential direction to the swirl chamber 3 via the inflow hole 5, and a swirl flow of the wash water is formed inside the swirl chamber 3. The The opening 4 is open to the outside of the guide member 1, and the opening on the other end side of the swirl chamber 3 is closed by a sealing member 6.

  The cylindrical body 20 is formed in a substantially bottle shape having a reduced diameter portion 21 and a large diameter portion 22. The outer diameter dimension of the large diameter portion 22 is smaller than the inner diameter dimension of the swirl chamber 3, and the large diameter portion 22 is accommodated in the swirl chamber 3. The outer diameter dimension of the reduced diameter part 21 provided integrally with the large diameter part 22 is smaller than the inner diameter dimension of the opening part 4, and the reduced diameter part 21 penetrates the opening part 4, and the tip thereof is outside the spherical part 2. Protruding.

  As shown in FIG. 1, in the state where the cylindrical body 20 and the swirl chamber 3 are aligned with each other, the gap is formed between the outer peripheral surface of the reduced diameter portion 21 and the inner wall surface of the opening portion 4. Further, a gap is also formed between the outer peripheral surface of the large diameter portion 22 and the inner wall surface of the swirl chamber 3. The cylindrical body 20 is not fixed to the guide member 1 and can swing and revolve freely so as to rotate and swing freely.

  Both ends of the cylindrical body 20 in the axial direction are opened, and the cleaning water that has flowed into the cylindrical body 20 from the opening 24 on the large diameter portion 22 side flows in the cylindrical body 20 in the axial direction and opens on the reduced diameter portion 21 side. It is possible to flow out from the cylinder 20 to the outside. In addition, a plurality of through holes 23 that are intermittently arranged at equal intervals in the circumferential direction are formed on the circumferential surface (side surface) of the large-diameter portion 22 of the cylindrical body 20, and the washing water that has flowed into the swirl chamber 3 Even through the through holes 23, the gas can be guided into the cylindrical body 20 and flow out from the tip of the reduced diameter portion 21.

  The head 40 is formed in a flat shape having a larger radial dimension than the cylinder 20, and the center in the radial direction coincides with the central axis C <b> 1 of the cylinder 20. The head 40 includes a funnel-shaped buffer member 41 and a water spray plate 44. The distal end of the reduced diameter portion 21 of the cylindrical body 20 is fitted and fixed inside the narrow tube portion 42 of the buffer member 41, whereby the cylindrical body 20 and the head 40 are swung together to rotate or swing together. Revolve.

  A buffer chamber 43 is formed inside the buffer member 41, and the opening at the tip of the reduced diameter portion 21 of the cylindrical body 20 faces the buffer chamber 43. The radial dimension of the buffer chamber 43 is larger than the radial dimension of the cylindrical body 20, and the wash water flowing out from the tip of the reduced diameter portion 21 can be temporarily stored in the buffer chamber 43.

  The water spray plate 44 is provided in a lid shape that closes the opening of the buffer chamber 43 on the side opposite to the narrow tube portion 42. The water spray plate 44 is formed in a disk shape having a larger radial dimension than the cylindrical body 20, and the water spray plate 44 has a plurality of water discharge holes 45 penetrating in the thickness direction. One end of the water discharge hole 45 communicates with the buffer chamber 43, and the other end faces the outside of the head 40.

  The plurality of water discharge holes 45 are formed in the circumferential direction in at least the outer peripheral side portion of the water spray plate 44. Each water discharge hole 45 is not parallel to the central axis C <b> 1 of the cylindrical body 20, but is inclined. In this embodiment, all the water discharge holes 45 are inclined in the same direction. Accordingly, each water discharge hole 45 is inclined in an asymmetric relationship with respect to the central axis C <b> 1 of the cylindrical body 20. That is, the inclination direction of the water discharge hole 45 does not match when the water spray plate 44 is rotated 180 degrees around the central axis C1 of the cylindrical body 20 and before it is rotated 180 degrees. ing.

  Next, the operation of the water discharge device according to the present embodiment and the movement (trajectory) of the water discharge flow will be described.

  FIG. 2 is a schematic view of the swirl chamber 3 and the cylindrical body 20 (the large-diameter portion 22) housed therein, as viewed from the plane direction, and corresponds to the AA-AA cross section in FIG.

  Wash water (including hot water) guided from a pipe (not shown) flows into the swirl chamber 3 having a substantially circular cross section from the tangential direction through the inflow hole 5 formed in the guide member 1. Thus, a flow of cleaning water swirling around the central axis C <b> 2 of the swirl chamber 3 is formed inside the swirl chamber 3.

  The cylindrical body 20 (the large-diameter portion 22) housed inside the swirl chamber 3 receives the swirling flow force, and tilts with respect to the central axis C2 of the swirl chamber 3 as shown in FIG. For example, it revolves around the central axis C2 of the swirl chamber 3 in the direction indicated by the arrow A in FIG. As shown in FIG. 3, a part of the reduced diameter portion 21 of the cylindrical body 20 contacts the opening 4, and a part of the side surface (circumferential surface) of the large diameter portion 22 contacts the guide surface 3 a of the swirl chamber 3. By doing so, further inclination of the cylindrical body 20 with respect to the central axis C2 of the swirl chamber 3 is restricted.

  In this specification, the revolving around the central axis C2 while the cylindrical body 20 is inclined with respect to the central axis C2 of the swirl chamber 3 is referred to as “swing swing revolution”. That is, when the cylindrical body 20 revolves around the central axis C2 while tilting with respect to the central axis C2 of the swirl chamber 3, the cylindrical body 20 is contracted around the vicinity of the portion where the reduced diameter portion 21 contacts the opening 4. It swings so that the tip of the diameter portion 21 swings its head. Accordingly, the head 40 fixed to the tip of the reduced diameter portion 21 also swings and revolves around the central axis C <b> 2 of the swirl chamber 3 together with the cylindrical body 20.

  When the cylindrical body 20 swings and revolves, a part of the outer peripheral surface of the reduced diameter portion 21 is in contact with the inner wall surface of the opening 4, and a part of the side surface (peripheral surface) of the large diameter portion 22 is a swirl chamber. Since the three guide surfaces 3 a are in contact with each other, the dynamic friction force generated in the contact portions acts on the cylindrical body 20. Due to this dynamic friction force, the cylindrical body 20 does not slide and move in the swirl chamber 3 without changing the contact portion with the opening 4 or the guide surface 3a. And swing around the guide surface 3a. The fact that the cylinder 20 rolls on the inner wall surface of the opening 4 or the guide surface 3a means that the cylinder 20 rotates around its own central axis C1.

  That is, the cylindrical body 20 swings and revolves around the central axis C2 of the swirl chamber 3 while rotating about the central axis C1 of itself. The revolution direction of the cylinder 20 around the central axis C2 of the swirl chamber 3 (the direction of arrow A in FIG. 2) is the same as the swirl direction of the swirl flow formed in the swirl chamber 3, and the cylinder 20 itself The direction of rotation around the central axis C1 (the direction of arrow B in FIG. 2) is opposite to the direction of revolution A. Regarding this rotation, the dynamic friction coefficient of the contact surface, the material and shape of the large-diameter portion 22 of the cylindrical body 20, the inflow speed from the inflow hole 5, the clearance between the swirl chamber 3 and the large-diameter portion 22, etc. The rotation direction and the number of rotations can be controlled.

  A part of the washing water that has flowed into the swirl chamber 3 flows into the inside of the cylinder 20 from the opening 24 at the end on the large diameter portion 22 side of the cylinder 20 and the through-hole 23 formed on the side surface thereof. 20 flows in the axial direction toward the tip of the reduced diameter portion 21. Then, the washing water that has flowed out from the tip of the reduced diameter portion 21 flows into the buffer chamber 43 inside the head 40. When the cleaning water in the swirl chamber 3 flows into the cylinder 20 and flows through the cylinder 20, it still has a swirl component. Further, when flowing through a relatively narrow flow path called the reduced diameter portion 21, the flow velocity becomes faster.

  Since the buffer chamber 43 is a flat space having a larger radial dimension than the swirl chamber 3 and the cylindrical body 20, the momentum of the cleaning water flowing from the tip of the reduced diameter portion 21 can be reduced. That is, only by temporarily storing the cleaning water in the buffer chamber 43 without adding a special mechanism or parts, the flow rate of the cleaning water can be greatly reduced, and the swirling component can be lost. The washing water rectified in the buffer chamber 43 in this manner is discharged to the outside in the form of a shower from a plurality of water discharge holes 45 communicating with the buffer chamber 43.

  Since the cylindrical body 20 and the head 40 move in a combination of swinging revolution and rotation as described above, the water discharge trajectory of the shower-like water discharge flow obtained by the water discharge device according to the present embodiment (for example, discharge to the human body or the like). The movement locus on the surface of the human body at the collision site of the water flow) is a combination of a locus caused by rotation and a locus caused by swinging revolution.

  The water discharge locus is schematically shown in FIG. In FIG. 4, the water discharging device shows only the cylindrical body 20 and the head 40 which are movable parts, and the guide member 1 in which the swirl chamber 3 is formed is not shown.

  The cylindrical body 20 and the head 40 rotate together with each other around their own central axis C1, and move in the same b direction as the rotation direction while drawing a circular locus as shown by a solid line in FIG. A water stream is formed. Here, since the water discharge hole 45 is inclined with respect to the central axis C <b> 1 of the cylindrical body 20, the water discharge flow moves so as to draw a circle larger than the diameter of the water spray plate 44 in which the water discharge hole 45 is formed.

  Here, as a comparative example, when the plurality of water discharge holes 45 are inclined in a symmetrical relationship with respect to the center axis C1, or when all the water discharge holes 45 are parallel to the center axis C1 of the cylindrical body 20, the center axis Even if the water discharge flow having a symmetric spread with respect to C1 is discharged, and the cylinder 20 and the head 40 rotate around the central axis C1, the water discharge flow continues to hit the same part of the human body or the like.

  On the other hand, in this embodiment, since the plurality of water discharge holes 45 are inclined with respect to the central axis C1, the water discharge flow having an asymmetrical spread with respect to the central axis C1 is discharged. Along with the rotation of the body 20 and the head 40 around the central axis C1, the portion where the water discharge hits the human body or the like moves around the central axis C1 and can be showered over a relatively wide range.

  The expression that the plurality of water discharge holes 45 are inclined in an asymmetric relationship with respect to the central axis C1 is not limited to the fact that all the water discharge holes 45 are inclined in the same direction, and at least one water discharge hole 45 is provided. A structure inclined in a direction different from the other water discharge holes 45 is also included. However, if the inclination directions are different among the plurality of water discharge holes 45, the arrival points of the water discharge flow are likely to be dispersed, and it is difficult to obtain a feeling that the water discharge flows uniformly within a certain surface (a feeling of unity of the water discharge flow).

  On the other hand, if all the water discharge holes 45 are inclined in the same direction, the water discharge flow from each water discharge hole 45 proceeds in the same direction, so that the in-plane distribution is uniform and has a sense of unity without being dispersed. The water discharge can be bathed, and the portion that receives the water discharge can be washed and warmed evenly. Further, suppressing the dispersion of the water discharge flow also suppresses the heat of the water discharge flow from escaping into the air, thereby suppressing the temperature drop during the flight of the water discharge flow.

  The cleaning water that has flowed into the swirl chamber 3 not only rotates to rotate and swing the cylinder body 20, but also the cleaning water itself passes through the cylinder body 20 and the head 40 to discharge water from the water discharge hole 45. It becomes a water discharge flow. Here, if the washing water reaches the water discharge hole 45 with a swirling component, the water is dispersed and discharged in directions other than the inclination direction of the water discharge hole 45, and a sense of unity in which the in-plane distribution is uneven is felt. Not prone to water discharge.

  Therefore, in this embodiment, the buffer chamber 43 is provided between the cylinder 20 and the water spray plate 44, and the wash water is temporarily stored in the buffer chamber 43, so that the flow rate of the wash water can be greatly reduced. Also, the swirl component can be lost. The washing water passing through the water discharge holes 45 loses the swirl component, so that the water can be discharged reliably in the inclined direction of the water discharge holes 45, the dispersion of the water discharge flow is suppressed, the in-plane distribution is uniform, and the discharge has a sense of unity. A water stream is obtained.

  For example, when the water discharge hole 45 is formed in the vicinity of the center of the water spray plate 44, the washing water that has flowed out from the tip of the cylindrical body 20 does not receive a sufficient rectifying action in the buffer chamber 43 and has a swirling component. There is a concern that it may flow into the water discharge hole 45. Therefore, it is desirable to form the water discharge holes 45 in the outer peripheral side portion of the water spray plate 44 as much as possible. Moreover, when the water discharge hole 45 is formed in the outer peripheral side part of the water spray plate 44, the water discharge flow can be discharged in a wider range by the centrifugal force generated by the above-mentioned rotation and swing revolution.

  Further, in the present embodiment, a swirling flow that moves in a relatively narrow range as shown by a dotted line in FIG. 4 is formed by swinging and revolving around the central axis C2 of the swirl chamber 3 of the cylindrical body 20 and the head 40. The The rotation angle determined by the inclination of the water discharge hole 45 is set to be larger than the revolution angle regulated by the cylindrical body 20 and the guide surface 3a, whereby the water discharge flow formed by this swing revolution is A range narrower than the moving range of the discharged water flow formed by the rotation moves in the direction a opposite to the moving direction b of the discharged water flow formed by the rotation at a higher speed than the movement in the b direction. Therefore, as a whole, the discharged water flow moves in a relatively narrow range at a high speed in the direction of arrow a in FIG. 4 and slowly moves in a range larger than the moving range in the b direction opposite to the a direction.

  The water discharge flow formed by swinging and revolving can cover the inner area that cannot be covered by the water discharge flow formed by rotation alone. Can be obtained. Thus, according to this embodiment, it is possible to realize a shower-like water discharge flow that covers a wider area in a planar shape without hollowing out. A plurality of such water discharge devices according to the present embodiment, for example, attached to the wall of a bathroom or a shower booth, and if the water discharge from each of the water discharge devices is bathed, the entire body area in a freehand state can be obtained at once. It can be warmed, and a sufficient bathing feeling can be obtained only by the shower flow. Unlike bathing in a bathtub, such a shower bath is safe for small children and the elderly, especially without feeling the pressure of water pressure on the body (burden on the cardiopulmonary) or drowning.

  When the cylinder 20 and the head 40 swing and revolve, the cylinder 20 and the head 40 swing (oscillate) around the contact portion between the reduced diameter portion 21 and the opening 4. At that time, in order to reduce the moment of inertia and to make the cylinder 20 and the head 40 swing (sway) efficiently and reliably, the center of gravity of the system of the cylinder 20 and the head 40 is swung (swayed). It is desirable that it is in the vicinity of the contact portion between the reduced diameter portion 21 and the opening 4 which is the center of the movement. The head 40 is formed in a flat shape in order to discharge water in a wider range, and the cylindrical body 20 is formed long in the direction of the central axis C1 in order to receive the swirling flow force with certainty.

  Therefore, in order to position the center of gravity of the system of the cylindrical body 20 and the head 40 in the vicinity of the contact portion between the reduced diameter portion 21 and the opening 4, the relationship between the lengths L1 and L2 in FIG. <L2 is required. Here, L1 is the length between the portion located inside the opening 4 in the reduced diameter portion 21 and the surface of the water spray plate 44, and L2 is inside the opening 4 in the reduced diameter portion 21. This is the length between the position and the end of the cylindrical body 20 opposite to the reduced diameter portion 21.

  Moreover, in order to perform rotation when the cylindrical body 20 is inclined, at least the outer peripheral surface of the reduced diameter portion 21 and the inner wall surface of the opening 4 need to contact each other, but in order to perform rotation more reliably. The large-diameter portion 22 is also preferably in contact with the inner wall surface (guide surface 3a) of the swirl chamber 3, so that the frictional force at the contact portion between the cylindrical body 20 and the guide member 1 is increased.

  FIG. 5 is a schematic cross-sectional view of a water discharger according to another embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same component as embodiment mentioned above, and the detailed description is abbreviate | omitted.

  In this embodiment, the spherical body part 2 is held with respect to the wall 50 of a bathroom or a shower booth through the holding members 51 and 52, for example. A seal ring 55 is interposed between the outer peripheral surface of the spherical portion 2 and the holding member 52, and a seal ring 56 is interposed between the outer peripheral surface of the spherical portion 2 and the holding member 51, and the spherical portion 2 is the holding member. 51, 52 can be rotated in a liquid-tight manner in the vertical direction, the horizontal direction, or the oblique direction. By rotating the sphere 2, the direction in which the surface portion of the water spray plate 44 faces can be changed, and the water discharge direction of the water discharge discharged from the water discharge holes 45 formed in the water spray plate 44 can be adjusted. Become.

  Washing water guided through a pipe (not shown) flows into the holding member 51 from an inflow hole 53 formed in the holding member 51 and then flows into an inflow hole 54 formed in the sealing member 6. In the inflow hole 54 formed in the sealing member 6, the downstream side leading to the swirl chamber 3 is inclined with respect to the central axis of the swirl chamber 3, and the washing water that has passed through the inflow hole 54 enters the swirl chamber 3. On the other hand, it flows in from the tangential direction and becomes a swirl flow in the swirl chamber 3.

  In this embodiment, the buffer plate 61 is provided on the back side of the water spray plate 44 in the buffer chamber 43 so as to be separated from the water spray plate 44. That is, a gap is formed between the water spray plate 44 and the buffer plate 61. In the buffer plate 61, through holes 62 are formed corresponding to the water discharge holes 45 formed in the water spray plate 44. Each of the through holes 62 is substantially aligned with the upstream inlet of the water discharge hole 45. The axial direction of the through hole 62 is not inclined and is substantially parallel to the central axis of the cylindrical body 20.

  The cleaning water that has flowed into the buffer chamber 43 from the tip of the cylindrical body 20 passes through the through hole 62 formed in the buffer plate 61 before reaching the water discharge hole 45. For this reason, it has a structure in which the resistance of the washing water flowing out from the tip of the cylinder 20 and flowing toward the water discharge hole 45 is further increased. In particular, even when the flow rate is large, the swirling component is surely lost, and the water discharge Water can be reliably discharged along the inclination direction of the hole 45.

FIG. 6 is a schematic cross-sectional view of a water discharge device according to still another embodiment of the present invention.
FIG. 7 is a schematic cross-sectional view of a water discharge device according to a comparative example.
In addition, the same code | symbol is attached | subjected to the same component as embodiment mentioned above, and the detailed description is abbreviate | omitted.

  In the present embodiment, the head 40 has a protrusion 46 that extends toward the cylindrical body 20 on the outer peripheral surface (side surface) of the head 40. As shown in FIG. 6, the protrusion 46 may be provided on the outer peripheral surface of the buffer member 41, or may be provided on the outer peripheral surface of the water spray plate 45. In the present embodiment, the buffer plate 61 (see FIG. 5) is not provided, but the buffer plate 61 may be provided as appropriate as in the embodiment described above with reference to FIG. About another structure, it has the same structure as the water discharging apparatus represented to FIG.

  Here, as described above, a gap is formed between the outer peripheral surface of the reduced diameter portion 21 and the inner wall surface of the opening portion 4 in a state in which the cylindrical body 20 and the swirl chamber 3 are aligned with each other. ing. Thereby, the cylindrical body 20 and the head 40 can swing and revolve with respect to the guide member 1 freely rotating and swinging. Therefore, the cleaning water that has flowed into the swirl chamber 3 from the inflow hole 54 and has not been able to flow into the cylindrical body 20 is the outer periphery of the reduced diameter portion 21 as indicated by the arrows F and G shown in FIG. In some cases, it may be transmitted to the outer peripheral surface of the head 40 through a gap between the surface and the inner wall surface of the opening 4.

  The wash water 76 transmitted to the head 40 may be scattered in the circumferential direction of the head 40 as shown in FIG. Further, even when the cleaning water does not scatter in the circumferential direction of the head 40, the cleaning water 78 collected on the outer peripheral surface of the head 40 may droop as shown in FIG.

  The scattered cleaning water 76 and the dripping cleaning water 78 are not the cleaning water temporarily stored in the buffer chamber 43 but the cleaning water transmitted through the outer peripheral surface of the head 40, so that water is discharged from the water discharge hole 45. The temperature is lower than the washed water. Therefore, when the user bathes the scattered cleaning water 76 or the dripping cleaning water 78, the user may feel cold with respect to the cleaning water.

  On the other hand, in the water discharging apparatus according to the present embodiment, the head 40 has the protrusion 46 as described above. Therefore, the cleaning water is transmitted to the outer peripheral surface of the head 40 as indicated by the arrow D or the arrow E shown in FIG. 6 through the gap between the outer peripheral surface of the reduced diameter portion 21 and the inner wall surface of the opening 4. Even so, the water discharge device of the present embodiment can suppress the amount of cleaning water that scatters in the circumferential direction of the head 40 and the amount of cleaning water that hangs down.

  Further, even when the cleaning water is scattered, the scattering direction of the cleaning water 72 is, for example, substantially scattered along the wall 50 as shown in FIG. There is little risk of exposure. Further, even if the cleaning water drips, as shown in FIG. 6, the cleaning water 74 hangs substantially along the wall 50, for example, so that the user may be exposed to the dripping cleaning water 74. Few.

  Thereby, the user can bathe much washing water temporarily stored in the buffer chamber 43 and discharged from the water discharge hole 45. Therefore, there is little possibility that a user will feel cold with respect to washing water. Therefore, the water discharging apparatus of the present embodiment can efficiently warm a wide area such as a human body. Moreover, since the washing water scattered around can be suppressed, generation | occurrence | production and adhesion | attachment of dirt, such as scale, can be suppressed, for example. Furthermore, since the swinging water discharge can be clearly shown, the design of the water discharge state is further improved.

Next, a modification of the present embodiment will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component as embodiment mentioned above, and the detailed description is abbreviate | omitted.
FIG. 8 is a schematic view illustrating a water discharge device according to a modification of the present embodiment.
Moreover, FIG. 9 is a schematic diagram showing the cylinder which the water discharging apparatus of this modification has. FIG. 9A is a schematic side view of the cylindrical body of the water discharge device of the present modification as viewed from the side, and FIG. 9B is a perspective view of the cylindrical body in FIG. It is the plane schematic diagram seen in the direction.

  The water discharging apparatus according to this modification directly applies energy that causes the swing and revolution of the cylinder to the cylinder from the fluid (washing water). Therefore, in the water discharge device according to the present modification, a rotating chamber (inflow chamber) 103 formed in a cylindrical shape into which the cleaning water flows is formed in the guide member 101. The cleaning water flows into the rotation chamber 103 through the inflow path 109 formed in the sealing member 106. Therefore, the inflow hole 5 is not formed in the rotation chamber 103 unlike the swirl chamber 3 shown in FIG. The inflow path 109 is connected to the center of the rotation chamber 103. The passage sectional area of the inflow passage 109 is smaller than the passage sectional area of the passage 108 that guides the fluid to the rotating chamber 103. Therefore, the flow rate of the cleaning water flowing into the rotation chamber 103 can be increased.

  As shown in FIG. 9, the cylindrical body 120 included in the water discharge device of the present modification is formed in a substantially bottle shape having a reduced diameter portion 21 and a large diameter portion 22, similar to the cylindrical body 20 shown in FIG. 1. ing. The large diameter portion 22 side of the cylindrical body 120 is not opened. Therefore, in the present modification, the wash water that has flowed into the rotation chamber 103 can be guided to the inside of the cylindrical body 120 through the through hole 23 and flow out from the tip of the reduced diameter portion 21.

  Then, the washing water that has flowed out from the tip of the reduced diameter portion 21 flows into the buffer chamber 43 inside the head 40. Since the buffer chamber 43 is a flat space having a larger radial dimension than the rotating chamber 103 and the cylindrical body 120, the momentum of the cleaning water flowing from the tip of the reduced diameter portion 21 can be reduced. That is, only by temporarily storing the cleaning water in the buffer chamber 43 without adding a special mechanism or parts, the flow rate of the cleaning water can be greatly reduced, and the swirling component can be lost. The washing water rectified in the buffer chamber 43 in this manner is discharged to the outside in the form of a shower from a plurality of water discharge holes 45 communicating with the buffer chamber 43.

  The cylindrical body 120 has an axial flow blade 122 at the lower end of the large diameter portion 22. The axial flow blade 122 directly receives the flow of the cleaning water that has entered the rotating chamber 103 from the inflow passage 109 and converts this into the driving force of the cylindrical body 120. Since the washing water enters the rotation chamber 103 from the small diameter inflow passage 109, it hits the axial flow blade 122 at a high flow velocity. Accordingly, the cylindrical body 120 revolves upon receiving a large driving force, and rotates around the central axis C <b> 1 of the cylindrical body 120 itself by the frictional force generated in the cylindrical body 120. In addition, about another structure, it is the same as that of the structure of the water discharging apparatus mentioned above regarding FIGS.

  The behavior of the cylinder 120 will be described in more detail. When cleaning water is supplied from the inflow path 109 to the rotating chamber 103, the internal pressure of the rotating chamber 103 increases, a part of the outer peripheral surface of the reduced diameter portion 21 is pressed against the inner wall surface of the opening 4, and the large diameter portion 22. A part of the side surface (circumferential surface) is pressed against the guide surface 103 a of the rotation chamber 103. Since the axial flow blade 122 changes the flow of the washing water into the rotating chamber 103 into a driving force, the cylinder 120 receives the driving force and the cylinder 120 swings around the central axis C <b> 2 of the rotating chamber 103. Cause exercise. When such a revolving motion is caused, a frictional force is generated at a contact portion between the reduced diameter portion 21 and the opening 4 and a contact portion between the large diameter portion 22 and the rotating chamber 103. Starts rotating around the central axis C <b> 1 of the cylinder 120 itself in the rotating chamber 103.

  Even in the case where the axial flow blade 122 changes the flow of the washing water into the rotating chamber 103 into the driving force instead of the swirling flow as in the water discharge device of the present modification, the water discharge flow formed by the swing revolution Further, it is possible to cover a more inner range that cannot be covered only by the discharged water flow formed by the rotation, and the discharged water flow can be obtained without causing unevenness, so that a flat water discharge flow can be obtained. Thus, also in the present modification, a shower-like water discharge flow that covers a wider area in a planar shape without being hollow out can be realized. Further, since the plurality of water discharge holes 45 are inclined in an asymmetric relationship with respect to the central axis C1, as described above with reference to FIG. 3, a water discharge flow having an asymmetrical spread with respect to the central axis C1 is discharged. Along with the rotation of the cylinder 120 and the head 40 around the central axis C1, the portion where the discharged water hits the human body or the like moves around the central axis C1 and can be showered over a relatively wide range.

FIG. 10 is a schematic view illustrating a water discharge device according to another modification of this embodiment.
The water discharging apparatus according to this modification causes the swinging revolution and rotation of the cylindrical body by driving the water wheel and the gear by the water flow. In view of this, the water discharge device of the present modification directly applies energy from the fluid (washing water) to the cylinder to cause the cylinder to swing and rotate. In the water discharging apparatus according to this modification, a rotating chamber (inflow chamber) 203 formed in a cylindrical shape into which cleaning water flows is formed inside the guide member 201. The washing water flows into the rotation chamber 203 through an inflow hole 205 formed in the rotation chamber (inflow chamber) 203. The inflow hole 205 may be formed to be inclined like the inflow hole 5 shown in FIG.

  As shown in FIG. 10, the cylindrical body 170 included in the water discharge device of the present modification is formed in a substantially bottle shape having a reduced diameter portion 21 and a large diameter portion 22, similar to the cylindrical body 20 shown in FIG. 1. ing. The large diameter portion 22 side of the cylindrical body 170 is not opened. Therefore, in the present modification, the cleaning water that has flowed into the rotation chamber 203 can be guided to the inside of the cylindrical body 170 through the through hole 23 and can flow out from the tip of the reduced diameter portion 21.

  An impeller 163 is provided below the rotation chamber 203 (upper part of the sealing member 156) so as to be rotatable about the central axis C2 of the rotation chamber 203. The impeller 163 enters the rotation chamber 203 through the inflow hole 205. It is directly driven by the flow of cleaning water. The impeller 163 is provided with a gear 164 that is rotatable about the central axis C <b> 2 via a shaft 163 a, and the gear 164 is driven in synchronization with the rotational drive of the impeller 163. The gear 164 is configured to mesh with gear teeth 165 provided at the lower end of the large diameter portion 22 of the cylindrical body 170.

  The cylindrical body 170 is engaged by a gear 164 provided at the lower part of the rotating chamber 203 and a gear tooth 165 provided at the lower end of the large-diameter portion 22 of the cylindrical body 170, and is connected to the rotating chamber 203 from the inflow hole 205. The flow of the cleaning water that has entered is received by the impeller 163 and driven. Thus, when the impeller 163 rotates, the rotation around the central axis C2 is transmitted to the cylindrical body 170 by being eccentric from the central axis C2 of the rotation chamber 203. At this time, since the cylindrical body 170 is inclined from the central axis C2 at a predetermined inclination angle as described above, it revolves in a swinging manner at the predetermined inclination angle.

  When such swinging revolution occurs, the cylindrical body 170 rotates about the central axis C <b> 1 of the cylindrical body 170 itself due to the meshing between the gear teeth 165 and the gear 164. Therefore, the water discharge device according to this modification causes the cylindrical body 170 to swing and revolve around the central axis C <b> 2 while rotating around the central axis C <b> 1 of the cylindrical body 170 itself so that the cleaning water flows out from the tip of the reduced diameter portion 21. be able to. In addition, about another structure, it is the same as that of the structure of the water discharging apparatus mentioned above regarding FIGS.

  As in the water discharge device of the present modification, the driving force of the impeller 163 that directly receives the flow of the cleaning water that has entered the rotation chamber 203 from the inflow hole 205 instead of the swirling flow is transmitted via the gear 164, and the cylindrical body Even in the case of causing 170 swing revolution and rotation, as described above with reference to FIGS. 8 and 9, the discharge water formed by the swing revolution can be covered only by the discharge water formed by the rotation. It is possible to cover a more inner range, so that the discharged water flow is not so-called, and a non-uniform surface discharge water flow can be obtained. Further, since the plurality of water discharge holes 45 are inclined with respect to the central axis C1 in an asymmetric relationship, the same effects as those described above with reference to FIGS. 8 and 9 can be obtained.

  FIG. 11 is a schematic view illustrating a water discharge device according to yet another modification of the present embodiment. The water discharging apparatus according to this modification causes the swinging revolution and rotation of the cylindrical body by driving the water wheel and the gear by the water flow. In view of this, the water discharge device of the present modification directly applies energy from the fluid (washing water) to the cylinder to cause the cylinder to swing and rotate. In the water discharging apparatus according to this modification, a rotating chamber (inflow chamber) 203 formed in a cylindrical shape into which cleaning water flows is formed inside the guide member 201. The washing water flows into the rotation chamber 203 through an inflow hole 205 formed in the rotation chamber (inflow chamber) 203. The inflow hole 205 may be formed to be inclined like the inflow hole 5 shown in FIG.

  As shown in FIG. 11, the cylindrical body 220 included in the water discharge device according to the present modification is formed in a substantially bottle shape having the reduced diameter portion 21 and the large diameter portion 22, similar to the cylindrical body 20 shown in FIG. 1. ing. The large diameter portion 22 side of the cylindrical body 220 is not opened. Therefore, in this modification, the wash water that has flowed into the rotation chamber 3 can be guided to the inside of the cylindrical body 220 through the through hole 23 and flow out from the tip of the reduced diameter portion 21.

  An impeller 263 is rotatably provided at a position eccentric from the central axis C <b> 2 of the rotating chamber 203 at a lower portion of the rotating chamber (inflow chamber) 203 (upper portion of the sealing member 156). The rotary drive is directly driven by the flow of cleaning water entering the rotary chamber 203 from the The impeller 263 is provided with a gear 264 that is rotatable about the central axis of the impeller 263 at an eccentric position via a shaft 263a. The gear 264 is driven in synchronization with the rotational drive of the impeller 263. To do.

  The transmission disk 225 provided with the gear teeth 265 is rotatably provided about the central axis C2 by engaging with the gear teeth 265 and the gear 264. Further, the transmission disk 225 is provided with a support portion 235 at a position eccentric from the central axis C2, and a transmission shaft 215 provided at the lower end of the large diameter portion 22 of the cylindrical body 220 is rotatably engaged. The transmission disk 225 is driven by the impeller 263 receiving the flow of the cleaning water that has entered the rotation chamber 203 from the inflow hole 205. As described above, when the impeller 263 rotates, the rotation around the central axis C <b> 2 is transmitted to the cylindrical body 220 by being eccentric from the central axis C <b> 2 of the rotation chamber 203. At this time, since the cylinder 220 is inclined from the central axis C2 at a predetermined inclination angle as described above, it revolves in a swinging manner at this predetermined inclination angle. When such swinging revolution occurs, the cylindrical body 220 receives a large driving force, and the central axis of the cylindrical body 220 itself due to the frictional force generated at the contact portion between the cylindrical body 220 and the guide member 201. Rotate around C1.

  Therefore, the water discharging device according to this modification causes the cylindrical body 220 to swing around the central axis C <b> 2 while rotating around the central axis C <b> 1 of the cylindrical body 220 itself, and the washing water flows out from the tip of the reduced diameter portion 21. be able to. In addition, about another structure, it is the same as that of the structure of the water discharging apparatus mentioned above regarding FIGS.

  As in the water discharge device of the present modification, the driving force of the impeller 263 that directly receives the flow of the cleaning water that has entered the rotation chamber 203 from the inflow hole 205 instead of the swirling flow is transmitted via the gear 264, and the cylindrical body Even in the case where the swinging revolution and the rotation of 220 are caused, as described above with reference to FIGS. 8 and 9, the water discharge flow formed by the swing revolution can cover only the water discharge flow formed by the rotation. It is possible to cover a more inner range, so that the discharged water flow is not so-called, and a non-uniform surface discharge water flow can be obtained. Further, since the plurality of water discharge holes 45 are inclined with respect to the central axis C1 in an asymmetric relationship, the same effects as those described above with reference to FIGS. 8 and 9 can be obtained.

  Furthermore, in the present invention, the washing water has a swirling component by flowing into the revolving cylinder in the swirling chamber and the rotating chamber. Therefore, by temporarily storing the cleaning water in the buffer chamber, the flow rate of the cleaning water can be greatly reduced and the swirling component can be lost. Further, since the washing water passing through the water discharge holes 45 loses the swirl component, water can be discharged reliably in the inclined direction of the water discharge holes 45, the dispersion of the water discharge flow is suppressed, and the in-plane distribution is uniform and a sense of unity. A certain water discharge flow is obtained.

  In addition, the water discharging apparatus of this invention can be used also for a toilet bowl with a washing | cleaning function etc. besides using as a shower apparatus in a bathroom or a shower booth.

The schematic cross section of the water discharging apparatus which concerns on embodiment of this invention. The schematic diagram which looked at the swirl chamber in the water discharging apparatus which concerns on the same embodiment, and the cylinder (its large diameter part) accommodated in this inside from the plane direction. FIG. 2 is a schematic cross-sectional view similar to FIG. 1, showing a state where the cylinder is inclined with respect to the central axis of the swirl chamber. The schematic diagram for demonstrating the behavior of the discharged water flow discharged from the water discharging apparatus which concerns on the same embodiment. The schematic cross section of the water discharging apparatus which concerns on other embodiment of this invention. The schematic cross section of the water discharging apparatus which concerns on other embodiment of this invention. The schematic cross section of the water discharging apparatus concerning a comparative example. It is a schematic diagram which illustrates the water discharging apparatus concerning the modification of this embodiment. It is a schematic diagram showing the cylinder which the water discharging apparatus of this modification has. It is a schematic diagram which illustrates the water discharging apparatus concerning the other modification of this embodiment. It is a schematic diagram which illustrates the water discharging apparatus concerning the further another modification of this embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Guide member, 3 ... Swirling chamber (inflow chamber), 4 ... Opening part, 5 ... Washing water inflow hole, 20 ... Cylindrical body, 21 ... Reduced diameter part, 40 ... Head, 43 ... Buffer chamber, 44 ... Watering Plate 45: Water discharge hole 46 ... Projection part 72, 74, 76, 78 ... Washing water 101 ... Guide member 103 ... Rotating chamber (inflow chamber) 106 ... Sealing member 108 ... Passage 109 ... Inflow 120, cylinder, 122 ... axial blade, 156 ... sealing member, 163 ... impeller, 163a ... shaft, 164 ... gear, 165 ... gear teeth, 170 ... cylinder, 201 ... guide member, 203 ... rotation Chamber (inflow chamber), 205 ... inflow hole, 215 ... transmission shaft, 220 ... cylinder, 225 ... transmission disk, 235 ... support, 263 ... impeller, 263a ... shaft, 264 ... gear, 265 ... gear teeth

Claims (5)

A guide member having an inflow chamber into which cleaning water flows, and an opening provided through the inside and outside of the inflow chamber;
A reduced diameter portion having a diameter smaller than that of the opening portion is provided inside the inflow chamber in a state in which a tip of the reduced diameter portion protrudes from the opening portion to the outside of the guide member, and flows into the inflow chamber. A cylinder capable of flowing washing water from the tip of the reduced diameter portion;
A buffer chamber in which wash water flowing out from the tip of the reduced diameter portion is temporarily stored, and a plurality of water discharges that are inclined with respect to the central axis of the cylindrical body and communicate with the buffer chamber A head provided at the tip of the reduced diameter portion, having a hole formed and having a water spray plate larger in the radial direction than the reduced diameter portion;
With
The cylindrical body is inclined with respect to the central axis of the inflow chamber while being inclined with respect to the central axis of the inflow chamber in a state where at least a part of the reduced diameter portion is in contact with the opening by the washing water flowing into the inflow chamber. A water discharger characterized in that it swings and revolves integrally with the head around, and the cylindrical body rotates together with the head around its central axis.   The water discharge device according to claim 1, wherein all of the plurality of water discharge holes are inclined in the same direction.   3. The reduced diameter portion penetrates the opening portion in a state where a gap is formed between an outer peripheral surface of the reduced diameter portion and an inner wall surface of the opening portion. The water discharge apparatus of description.   When the cylindrical body is inclined with respect to the central axis of the inflow chamber, the cylindrical body has a side surface of a larger diameter portion than the reduced diameter part in addition to the reduced diameter part contacting the opening. The water discharge device according to any one of claims 1 to 3, wherein a part of the water discharge device rotates around its own central axis while being in contact with the inner wall surface of the inflow chamber.   The water discharge device according to any one of claims 1 to 4, wherein the head further includes a protrusion extending toward the cylindrical body on an outer peripheral surface thereof.

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