JP2018059390A - Water discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water discharge device capable of effectively protecting a rectifying member, and capable of realizing high rectifying performance particularly in an outer peripheral portion of a water discharge port.SOLUTION: The present invention is a water discharge device comprising a water discharge port forming member forming a water discharge port, a rectifying member provided inside the water discharge port forming member and for rectifying the flow of water on the upstream side of the water discharge port, an exposed rectifying member provided inside the water discharge port forming member on the side of the water discharge port with respect to the rectifying member and exposed to the water discharge port side, and a water supply channel for supplying water to the upstream side of the rectifying member. The exposed rectifying member and/or the water discharge port forming member is formed so as to discharge the water located at the outer peripheral portion, out of the water discharged from the water discharge port, as an annular water flow.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a water discharger that can be employed in an overhead shower or the like.

  The applicant of the present application is to provide a water discharge device that rectifies the discharged water by providing a flow regulating member (for example, a mesh) in order to reduce water splashing that occurs when the discharged water reaches the human body or the like and to make the discharged water beautiful. (Patent Document 1).

  More specifically, the water discharge device according to Patent Document 1 maximizes the continuous distance of the water discharge shape as a single water flow. For example, the water flow from the water discharge device installed on the bathroom ceiling is low even when the flow rate is low. Reach the head, shoulders or bathroom floor without cracking. Such a water flow forms a water film along the human body at the time of landing, wraps the whole body, and when the water flow is a warm water flow, it is effective in increasing the deep body temperature.

JP-A-2006-75081

  As described above, Patent Document 1 proposes a water discharging device that is particularly effective when employed in an overhead shower. However, it has been pointed out that calcium is precipitated on the flow regulating member (for example, mesh). If calcium precipitates on the rectifying member, the water discharge is disturbed and the rectifying performance is significantly reduced.

  Therefore, when calcium is deposited on the rectifying member, it is necessary to immediately perform maintenance (calcium removal) of the rectifying member. However, when performing maintenance in the conventional structure, it is necessary to disassemble the water discharge portion and remove the flow regulating member. That is, maintenance was very difficult.

  Therefore, the inventor of the present invention, as a structure that can be easily maintained, forms the member (part) exposed at the water outlet by an elastic material. There have been extensive studies on providing an exposed rectifying member made of a material. Such an exposed rectifying member can be easily removed by pressing and deforming manually by a user, thereby precipitating calcium deposited thereon.

  However, if an exposed rectifying member made of an elastic material is provided on the outlet side with respect to the rectifying member, the exposed rectifying member needs a certain thickness due to a problem in strength and a problem in manufacturing. Accordingly, it has been found that water discharge cracks occur at the downstream end of the exposed rectifying member having such a thickness (see FIG. 25).

  Such water discharge cracks that occur at the outer periphery of the water outlet are particularly likely to occur at a large flow rate, and the rectification performance of the outer periphery of the water outlet greatly affects the rectification performance of the entire water discharge, so avoidance is strongly desired.

  The present invention has been made in view of the above problems. The objective of this invention is providing the water discharging apparatus which can implement | achieve high rectification | straightening performance especially in the outer peripheral part of a water discharge port, while performing a maintenance easily.

  Further, the inventor of the present invention is that the rectifying member is a member that is generally easily deformed (delicate), and when the foreign object comes into contact or the user presses it by mistake, the rectifying member is deformed and the rectifying member It has been found that the rectification performance may be reduced. And this inventor is effective in protecting the rectification | straightening member from the contact by a foreign material etc. to form the member (part | part) exposed in a water discharge port by the exposed rectification | straightening member separate from a rectification | straightening member. I found out. This effect can also be obtained when the separate exposed rectifying member is not an elastic member.

  However, if a separate exposed rectifying member is provided on the outlet side with respect to the rectifying member, the exposed rectifying member needs to have a certain thickness due to a problem in strength and a problem in manufacturing. Therefore, water discharge cracks occur at the downstream end of the exposed rectifying member having such a thickness (see FIG. 25).

  Such water discharge cracks that occur at the outer periphery of the water outlet are particularly likely to occur at a large flow rate, and the rectification performance of the outer periphery of the water outlet greatly affects the rectification performance of the entire water discharge, so avoidance is strongly desired.

  The present invention has been made in view of the above problems. The objective of this invention is providing the water discharging apparatus which can implement | achieve high rectification | straightening performance especially in the outer peripheral part of a water discharge port, while being able to protect a flow regulating member effectively.

  The present invention includes a water discharge port forming member that forms a water discharge port, a rectifying member that is provided inside the water discharge port forming member and rectifies the flow of water on the upstream side of the water discharge port, and the inside of the water discharge port forming member And an exposed rectifying member provided on the outlet side with respect to the rectifying member and exposed to the outlet side, and a water supply path for supplying water to the upstream side of the rectifying member, and the exposure The rectifying member and / or the water discharge port forming member is a water discharge device formed so as to discharge water located in an outer peripheral portion of water discharged from the water discharge port as an annular water flow. .

  According to the present invention, water located at the outer peripheral portion of the water discharged from the water discharge port is discharged as an annular water flow, so that highly rectifying water discharge can be performed at the outer peripheral portion of the water discharge port. For this reason, even if the rectifying performance of the central portion of the water outlet is reduced by providing a separate exposed rectifying member on the water outlet side with respect to the rectifying member, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectifying performance Can be realized.

  In one specific aspect, the present invention includes a water discharge port forming member that forms a water discharge port, a rectifying member that is provided inside the water discharge port forming member and rectifies the flow of water upstream of the water discharge port, An exposed rectifying member provided inside the water discharge port forming member and on the water discharge port side with respect to the flow rectifying member, and exposed to the water discharge port side, and a water supply channel for supplying water to the upstream side of the flow rectifying member The exposed rectifying member is formed of an elastic material, and has a cylindrical outer peripheral rectifying surface in a region on the outlet side, and the outer peripheral rectifying surface is between the outlet forming member. In addition, the water discharge device is characterized in that an annular rectifying space is formed.

  In this aspect, a cylindrical outer rectifying surface is provided in a region on the outlet side of the exposed rectifying member formed of an elastic material, and an annular rectifying space is provided between the outer peripheral rectifying surface and the outlet forming member. Is formed. Therefore, since water discharge with high rectification property can be performed in the outer peripheral portion of the water discharge port, in order to improve maintainability, the water discharge port is provided by providing an exposed rectification member made of an elastic member on the water discharge port side with respect to the rectification member. Even if the rectification property of the central part of the water is lowered, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectification performance can be realized. That is, both maintainability and rectification performance can be achieved.

  And since the exposure rectification | straightening member is formed with the elastic material, the calcium which deposited there can be easily removed when a user manually press-deforms the said exposure rectification | straightening member. That is, maintenance can be easily performed.

  In another specific aspect, the present invention provides a water discharge port forming member that forms a water discharge port, a flow regulating member that is provided inside the water discharge port forming member and rectifies the flow of water upstream of the water discharge port, An exposed rectifying member provided inside the water discharge port forming member and on the water discharge port side with respect to the flow rectifying member, and exposed to the water discharge port side, and a water supply channel for supplying water to the upstream side of the flow rectifying member The exposed rectifying member has a cylindrical outer rectifying surface in a region on the water outlet side, and the outer peripheral rectifying surface is an annular rectifying space between the outlet rectifying surface and the water outlet forming member. It is the water discharging apparatus characterized by forming.

  In this aspect, the cylindrical outer periphery rectification surface is provided in the area | region by the side of the water discharge port of an exposure rectification member, and the cyclic | annular rectification space is formed between the said outer periphery rectification surface and the water discharge port formation member. Therefore, since the water discharge with high rectification property can be performed in the outer peripheral portion of the water discharge port, in order to protect the flow rectification member, by providing the exposed flow rectification member on the water discharge port side with respect to the flow rectification member, the central portion of the water discharge port Even if the rectification performance is lowered, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectification performance can be realized. That is, it is possible to achieve both the protection of the rectifying member and the rectifying performance.

  In each of the above inventions, preferably, the annular rectifying space is annular, and the length of the annular rectifying space in the flow direction of water is greater than the radial width of the downstream end of the annular rectifying space. large.

  When such a condition is satisfied, even if the water flow enters the annular rectification space and contracts, the rectification performance as a whole can be maintained because the flow is sufficiently rectified in the rectification space.

  Preferably, the exposed rectifying member has a plurality of cylindrical hollow spaces separated by a partition wall extending in the direction of water flow. The plurality of cylindrical hollow spaces may have a configuration in which each of the concentric annular regions in a sectional view is further divided into a plurality in the circumferential direction. In particular, it is preferable that the partition walls have a lattice shape having intersections in plan view. Here, the expression “lattice shape” in the present specification is not limited to a mode in which straight lines intersect with each other, but a mode in which straight lines and curves intersect or curves (which may have different curvatures) intersect. Embodiments are also included. Furthermore, the expression “lattice” in the present specification is not limited to an aspect in which four sides (not limited to a line segment but may be a curved line such as an arc) form a section, and three sides or five or more sides. Includes an embodiment in which a section is formed. A mode in which six equal sides form a section is called a honeycomb shape. Furthermore, the expression “lattice” in the present specification also includes an aspect in which the entire shape such as a circle or an ellipse cannot be recognized as a whole.

  In this case, it is more preferable that the width of the annular rectification space viewed in the thickness direction is larger than the thickness at the outermost periphery and the most downstream end of the exposed rectification member.

  When such a condition is satisfied, a relatively large amount of water flow discharged from the annular rectifying space can be maintained, so that film-like (annular) water discharge can be realized. As a result, since the entire shape of the water flow discharged from the water discharge port is maintained by being pulled by the film-like water discharge, the rectification performance can be further improved.

  Preferably, at least the region on the downstream end side of the inner surface of the water discharge port is tapered (a truncated cone) toward the downstream end.

  In this case, the possibility of water discharge cracks due to the presence of the wall thickness at the outermost periphery and the most downstream end of the exposed rectifying member can be effectively reduced.

  Preferably, the exposed rectifying member and the rectifying member are provided close to each other.

  According to this, when the exposed rectifying member is formed of an elastic member, the exposed rectifying member hits the rectifying member by deforming the exposed rectifying member during maintenance (manual pressing deformation) of the exposed rectifying member. Since the fixed matter such as calcium deposited on the rectifying member can be removed by rubbing, maintenance of the rectifying member can be performed at the same time.

  Preferably, the exposed rectifying member is disposed in a region on the opposite side to the water outlet, in particular, at an end opposite to the water outlet, via a plurality of discretely provided bridge portions. It is fixed to the water discharge port forming member.

  According to this, the cylindrical outer periphery rectification | straightening surface for providing an annular rectification | straightening space with a spout formation member can be formed effectively.

  In the aspect disclosed above, the exposed rectifying member has a cylindrical outer peripheral rectifying surface in a region on the water outlet side, and the outer peripheral rectifying surface forms an annular rectifying space between the outer peripheral rectifying surface and the water outlet forming member. ing. However, instead of this, the outer peripheral area of the exposed rectifying member on the water discharge port side may have an annular rectifying space.

  Even in such an aspect, water positioned at the outer peripheral portion of the water discharged from the water discharge port is discharged as an annular water flow, and thus water discharge with high rectification can be performed at the outer peripheral portion of the water discharge port. For this reason, even if the rectifying performance of the central portion of the water outlet is reduced by providing a separate exposed rectifying member on the water outlet side with respect to the rectifying member, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectifying performance Can be realized.

  Also in such an aspect, preferably, the annular rectifying space is annular, and the length of the annular rectifying space in the flow direction of water is the radial width of the downstream end of the annular rectifying space. Greater than.

  When such a condition is satisfied, even if the water flow enters the annular rectification space and contracts, the rectification performance as a whole can be maintained because the flow is sufficiently rectified in the rectification space.

  Preferably, the exposed rectifying member has a plurality of cylindrical hollow spaces separated from each other by partition walls extending in the direction of water flow on the inner peripheral side with respect to the annular rectifying space. Yes. The plurality of cylindrical hollow spaces may have a configuration in which each of the concentric annular regions in a sectional view is further divided into a plurality in the circumferential direction. In particular, it is preferable that the partition walls have a lattice shape having intersections in plan view.

  In this case, the width of the annular rectifying space viewed in the thickness direction is larger than the thickness at the most downstream end of the portion of the exposed rectifying member that defines the inner periphery of the annular rectifying space. More preferred.

  When such a condition is satisfied, a relatively large amount of water flow discharged from the annular rectifying space can be maintained, so that film-like (annular) water discharge can be realized. As a result, since the entire shape of the water flow discharged from the water discharge port is maintained by being pulled by the film-like water discharge, the rectification performance can be further improved.

  Preferably, at least a region on the downstream end side of the annular rectifying space is tapered (a truncated cone) toward the downstream end.

  In this case, it is possible to effectively reduce the possibility of water discharge cracks due to the presence of the thickness at the most downstream end of the portion of the exposed rectifying member that defines the inner periphery of the annular rectifying space.

  Preferably, the exposed rectifying member and the rectifying member are provided close to each other.

  According to this, when the exposed rectifying member is formed of an elastic member, the exposed rectifying member hits the rectifying member by deforming the exposed rectifying member during maintenance (manual pressing deformation) of the exposed rectifying member. Since the fixed matter such as calcium deposited on the rectifying member can be removed by rubbing, maintenance of the rectifying member can be performed at the same time.

  Preferably, the portion of the exposed rectifying member that defines the outer periphery of the annular rectifying space is formed in the annular region via a plurality of discretely provided bridge portions in a region opposite to the water discharge port. It is fixed to the exposed rectifying member that defines the inner periphery of the rectifying space.

  According to this, an annular rectifying space can be effectively formed.

  According to the present invention, water located at the outer peripheral portion of the water discharged from the water discharge port is discharged as an annular water flow, so that highly rectifying water discharge can be performed at the outer peripheral portion of the water discharge port. For this reason, even if the rectifying performance of the central portion of the water outlet is reduced by providing a separate exposed rectifying member on the water outlet side with respect to the rectifying member, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectifying performance Can be realized.

  For example, a cylindrical outer rectifying surface is provided in a region on the outlet side of the exposed rectifying member formed of an elastic material, and an annular rectifying space is formed between the outer peripheral rectifying surface and the outlet forming member. When it is done, generation | occurrence | production of a water discharge crack is suppressed notably and very high rectification | straightening performance is realizable. And when the exposure rectification member is formed with the elastic material, the calcium which precipitated there can be easily removed because a user carries out the press deformation of the said exposure rectification member manually. That is, maintenance can be easily performed.

It is a schematic longitudinal cross-sectional view of the water discharging apparatus which concerns on one Embodiment of this invention. It is a disassembled perspective view of the principal part of the water discharging apparatus of FIG. It is the perspective view which looked at the exposure rectification member of the water discharging apparatus of FIG. 1 from the top. It is the perspective view which looked at the exposure rectification | straightening member of FIG. 3 from the bottom. It is a bottom view of the water discharging apparatus of FIG. It is the sectional view on the AA line of the water discharging apparatus of FIG. It is a figure explaining the relationship between the width | variety and length of cyclic | annular rectification | straightening space. It is a figure explaining the relationship between the width | variety of cyclic | annular rectification | straightening space, and the thickness of the downstream end of the outermost periphery of an exposure rectification | straightening member. It is a figure explaining the inclination of the inner surface of a spout. It is a schematic longitudinal cross-sectional view of the water discharging apparatus which concerns on other embodiment of this invention. It is a disassembled perspective view of the principal part of the water discharging apparatus of FIG. It is a bottom view of the water discharging apparatus of FIG. It is a schematic longitudinal cross-sectional view of the water discharging apparatus which concerns on other embodiment of this invention. It is a disassembled perspective view of the principal part of the water discharging apparatus of FIG. It is the perspective view which looked at the exposure rectification member of the water discharging apparatus of FIG. 13 from the top. It is the perspective view which looked at the exposure rectification member of Drawing 15 from the bottom. It is a bottom view of the water discharging apparatus of FIG. It is AA sectional view taken on the line of the water discharging apparatus of FIG. It is a figure explaining the relationship between the width | variety and length of cyclic | annular rectification | straightening space. It is a figure explaining the relationship between the width | variety of cyclic | annular rectification space, and the thickness of the most downstream end of the part of the said exposure rectification member which prescribes | regulates the inner periphery of the said cyclic | annular rectification space. It is a figure explaining the taper-shaped (conical truncated cone shape) cyclic | annular rectification | straightening space. It is a schematic longitudinal cross-sectional view of the water discharging apparatus which concerns on other embodiment of this invention. It is a disassembled perspective view of the principal part of the water discharging apparatus of FIG. It is a bottom view of the water discharging apparatus of FIG. It is a figure explaining the water discharge crack in case a bridge part exists in the downstream end of an exposure rectification | straightening member.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding, the same components are denoted by the same reference numerals as much as possible in the drawings, and redundant description is omitted.

  FIG. 1 is a schematic longitudinal sectional view of a water discharge device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a main part of the water discharge device of FIG. 1, and FIG. 3 is a water discharge device of FIG. 4 is a perspective view of the exposed rectifying member as viewed from above, FIG. 4 is a perspective view of the exposed rectifying member of FIG. 3 as viewed from below, and FIG. 5 is a bottom view of the water discharging device of FIG. 6 is a cross-sectional view of the water discharge device of FIG.

  As shown in FIG. 1 thru | or FIG. 6, the water discharging apparatus 1 of this embodiment is provided with the water discharge port formation member 21 which forms the water discharge port 2 (opening below in FIG. 1). A first rectifying member 4 and a second rectifying member 5 are provided inside the spout forming member 21 as rectifying members that rectify the flow of water on the upstream side of the spout 2.

  In particular, as shown in FIG. 2, the first rectifying member 4 is constituted by a disk-shaped member, the central portion is a shielding portion 43, and 16 water passage holes extending in the water flow direction in the outer peripheral region. 44 are provided so as to be aligned in the circumferential direction, and eight water passage holes 45 extending in the water flow direction are provided so as to be aligned in the circumferential direction on a concentric circle having a substantially half diameter.

  As shown in FIG. 2, the second rectifying member 5 is configured by laminating four rectifying nets 51 made of mesh nets. The second rectifying member 5 is disposed adjacent to the downstream side of the first rectifying member 4.

  On the other hand, as shown in FIG. 1, a water supply path 3 for supplying water is provided on the upstream side of the first rectifying member 4. In this embodiment, the water supply path 3 is formed inside the water supply path forming member 31 disposed adjacent to the upstream side of the water discharge port forming member 21. The water discharge port forming member 21 and the water supply channel forming member 31 can be fixed to each other by a method such as screw fixing, snap fitting, adhesion, or welding.

  Further, as shown in FIG. 1, a first staying chamber 41 is formed between the water supply channel 3 and the first rectifying member 4, and the second rectifying member 4 is interposed between the first rectifying member 4 and the second rectifying member 5. A staying chamber 42 is formed. And the downstream end of the water supply path 3 is arrange | positioned so that it may settle in the area | region of the shielding part 43, and may overlap. Accordingly, the water supplied from the water supply path 3 can collide with the shielding part 43 and stay in the first staying chamber 41.

  As shown in FIGS. 1 to 6, the inside of the water discharge port forming member 21 is formed of an elastic material on the water discharge port 2 side (the lower side in FIG. 1) with respect to the second rectifying member 5. An exposed rectifying member 6 is disposed. Examples of the elastic material include silicon rubber, NBR (nitrile butyl rubber), and fluorine rubber.

  The exposed rectifying member 6 has a cylindrical outer peripheral rectifying surface 61 in a region on the water discharge port 2 side (lower side in FIG. 1). In the present embodiment, the outer peripheral rectifying surface 61 is a cylindrical surface. Conversely, the exposed rectifying member 6 has a large diameter through seven bridge portions 62 provided at substantially equal intervals in the circumferential direction in a region opposite to the water discharge port 2 (upper side in FIG. 1). An annular flange 63 is provided. The exposed rectifying member 6 is fixed to the water discharge port forming member 21 by the annular flange portion 63 being sandwiched between the step portion 21 s provided on the inner surface of the water discharge port forming member 21 and the second rectifying member 5. ing.

  According to this aspect, the exposed rectifying member 6 is fixed so as to float with respect to the water discharge port forming member 21 via the seven discretely provided bridge portions 62. Can be transformed into

  The exposed rectifying member 6 has a plurality of cylindrical hollow spaces 65 separated by partition walls 64 extending in the direction of water flow. In the present embodiment, each of the plurality of cylindrical hollow spaces 65 is configured such that each of the concentric annular regions in a cross-sectional view is further divided into a plurality of portions in the circumferential direction (see FIGS. 3 to 6).

  The partition wall 64 has a lattice shape having intersections in plan view. Here, the expression “lattice shape” in the present specification is not limited to a mode in which straight lines intersect with each other, but a mode in which straight lines and curves intersect or curves (which may have different curvatures) intersect. Embodiments are also included. Furthermore, the expression “lattice” in the present specification is not limited to an aspect in which four sides (not limited to a line segment but may be a curved line such as an arc) form a section, and three sides or five or more sides. Includes an embodiment in which a section is formed. A mode in which six equal sides form a section is called a honeycomb shape. Furthermore, the expression “lattice” in the present specification also includes an aspect in which the entire shape such as a circle or an ellipse cannot be recognized as a whole.

  And the outer periphery rectification | straightening surface 61 forms the cyclic | annular rectification | straightening space 66 between the water discharge port formation members 21. FIG. In the present embodiment, the annular rectifying space 66 is annular, and as shown in FIG. 7A, the length b of the annular rectifying space 66 in the water flow direction is the annular rectifying space 66. It is larger than the radial width a of the downstream end.

  By adopting such a dimensional condition, even if the water flow enters the annular rectifying space 66 and contracts, the rectifying performance is sufficiently rectified in the rectifying space 66, so that the overall rectifying performance is maintained. Can do. That is, as shown in FIG. 7B, for example, if the length b is sufficiently long so that the relationship b> a is established, the rectified water is rectified and discharged. (FIG. 7 (c) shows a state where water is discharged without rectification after contraction.)

  Moreover, in this embodiment, as shown to Fig.8 (a), rather than the thickness c in the outermost periphery and the most downstream end of the exposure rectification | straightening member 6, the width | variety a of the cyclic | annular rectification | straightening space 66 seen in the said thickness direction. Is bigger.

  By adopting such a dimensional condition, it is possible to maintain a relatively large amount of water flow discharged from the annular rectifying space 66, and thus it is possible to realize membrane-like (annular) water discharge. . As a result, since the entire shape of the water flow discharged from the water discharge port 2 is pulled and maintained by the film-like water discharge, the rectification performance can be further improved. That is, as shown in FIG. 8B, when the length of “a” is not sufficient, the annular flow straightening space 66 is narrow and the water flow after water discharge is granulated, and the flow straightening performance is not good. (If the flow path width is narrow (the flow rate is small), it is easy to granulate after water discharge. In other words, since the outer periphery of the water flow is granulated, water discharge is disturbed.)

  Moreover, in this embodiment, as shown in FIG. 9, the area | region of the at least downstream end side of the inner surface of the spout 2 is a taper shape (a truncated cone shape) toward the downstream end. For this reason, the possibility of water discharge cracks due to the presence of the wall thickness at the outermost periphery and the most downstream end of the exposed rectifying member 6 can be effectively suppressed. (Since the water that flows through the slit heads toward the center, breakage of the water flow is suppressed.)

  In addition, as shown in FIG. 1, a ring seal 32 is provided between the upstream side surface of the first rectifying member 4 and the water supply path forming member 31. Further, the gap between the downstream surface of the second rectifying member 5 (of the most downstream rectifying network 51) and the upstream surface of the exposed rectifying member 6 is formed when the exposed rectifying member 6 is elastically deformed. It is about the extent that it corresponds to the second rectifying member 5. That is, the exposed rectifying member 6 and the second rectifying member 5 are provided close to each other.

  For this reason, the second rectifying member 5 can also be deformed via the deformation of the exposed rectifying member 6 during the maintenance (manual pressing deformation) of the exposed rectifying member 6, and the maintenance of the second rectifying member 5 is performed. Can be carried out simultaneously.

  Next, the operation of this embodiment will be described.

  The water supplied from the water supply channel 3 once stays in the first retention chamber 41 after colliding with the shielding portion 43 of the first rectifying member 4 (or water that collides with the shielding portion 43 and flows backward). . Thereby, it will be in the state where a water pressure swells inside the 1st residence chamber 41. FIG. Thereafter, the water retained in the first retention chamber 41 is pushed out to the water from the upstream direction, and flows out to the downstream side through the water passage hole 44 and the water passage hole 45.

  The water flowing out from the water passage hole 44 and the water passage hole 45 moves toward the center of the second retention chamber 42 by the flow straightly traveling to the water discharge port 2 through the second rectifying member 5 and the surface tension or the negative pressure generated inside. It is divided into the flow to head. The latter flow in the central direction flows out into the water outlet 2 through the second rectifying member 5 after being concentrated in the central portion.

  When passing through the four rectifying nets 51 of the second rectifying member 5, the velocity vector of the water flow is aligned in the traveling direction. Thereafter, the water flow is discharged from the water discharge port 2 through the plurality of cylindrical hollow spaces 65 of the exposed rectifying member 6 and the annular rectifying space 66 on the outer periphery of the exposed rectifying member 6. As a result, the water discharged from the water discharge port 2 becomes a single water flow. When this embodiment is used as, for example, an overhead shower, such a water flow forms a water film along the human body when landing, wraps the whole body, and when the water flow is a warm water flow, it is effective in increasing the deep body temperature. Is.

  In particular, a cylindrical outer rectifying surface 61 is provided in a region on the outlet side 2 of the exposed rectifying member 6, and an annular rectifying space 66 is formed between the outer peripheral rectifying surface 61 and the outlet forming member 21. Therefore, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectification performance can be realized.

  In the present embodiment, the annular rectifying space 66 is annular, and the length b of the annular rectifying space 66 in the water flow direction is larger than the radial width a of the downstream end of the annular rectifying space 66. (See FIG. 7A), even if the water flow enters the annular rectifying space 66 and is contracted, the water is sufficiently rectified in the rectifying space 66 and the overall rectifying performance can be maintained. it can.

  In the present embodiment, the width a of the annular rectifying space 66 viewed in the thickness direction is larger than the thickness c at the outermost periphery and the most downstream end of the exposed rectifying member 6 (see FIG. 8 (a)), it is possible to maintain a relatively large amount of water discharged from the annular rectifying space 66, and to realize film-like (annular) water discharge. As a result, the entire shape of the water flow discharged from the water discharge port 2 is maintained by being pulled by the film-like water discharge, and the rectification performance can be further improved.

  In the present embodiment, at least the region on the downstream end side of the inner surface of the water discharge port 2 is tapered toward the downstream end (see FIG. 9). For this reason, the possibility of water discharge cracks due to the presence of the wall thickness at the outermost periphery and the most downstream end of the exposed rectifying member 6 can be effectively suppressed.

  Further, since the exposed rectifying member 6 is formed of an elastic material, the user can manually remove the calcium that has been deposited on the exposed rectifying member 6 by manually pressing and deforming the exposed rectifying member 6. That is, maintenance of the exposure rectifying member 6 can be easily performed.

  In particular, the exposed rectifying member 6 of the present embodiment is fixed so as to float with respect to the spout formation member 21 via the seven discretely provided bridge portions 62, so that the pressing operation by the user Sometimes it can be fully deformed.

  Furthermore, the exposed rectifying member 6 of the present embodiment is provided close to the second rectifying member 5. Thereby, at the time of the maintenance (manual pressing deformation) of the exposed rectifying member 6, the second rectifying member 5 can also be deformed through the deformation of the exposed rectifying member 6, and the maintenance of the second rectifying member 5 is performed. Can be carried out simultaneously.

  Further, in the present embodiment, the exposed rectifying member 6 is fixed to the water discharge port forming member 21 via the bridge portion 62 and the annular flange portion 63 at the end opposite to the water discharge port 2. Thereby, the cylindrical outer periphery rectification | straightening surface 61 for providing the cyclic | annular rectification | straightening space 66 with the water discharge port formation member 21 is formed effectively.

  In the present embodiment, since the water flow passage directions of the first rectifying member 4 and the second rectifying member 5 are the same, the velocity vectors can be efficiently aligned. Further, the rectifying effect can be further increased by increasing the number of the rectifying networks 51, increasing the thickness of each rectifying network 51, or making the mesh of each rectifying network 51 finer.

  Next, FIG. 10 is a schematic longitudinal sectional view of a water discharge device according to another embodiment of the present invention, FIG. 11 is an exploded perspective view of a main part of the water discharge device of FIG. 10, and FIG. It is a bottom view of 10 water discharging apparatuses.

  As shown in FIGS. 10 to 12, in the water discharge device 1 ′ of the present embodiment, unlike the embodiment described using FIGS. 1 to 9, the first rectifying member 4 ′ and the second rectifying member 5 ′ (rectifying member) The net 51 ′) and the exposed rectifying member 6 ′ are in an annular shape, and the fixing portion 7 penetrates them. The fixing portion 7 is supported by the first rectifying member 4 ′ via the holding ring 71.

  In particular, as shown in FIG. 10, the exposed rectifying member 6 ′ of this embodiment has a central reduced diameter portion 67 ′ supported by the large diameter portion 72 of the fixed portion 7, and has a bridge portion 62 and an annular flange. The portion 63 is not provided. (The exposed rectifying member 6 ′ is fixed to the water discharge port forming member 21 via the fixing portion 7 and the first rectifying member 4.) And, the step portion 21s of the water discharge port forming member 21 has a second rectification. The member 5 (the rectifying net 51) is placed.

  Further, in the present embodiment, the plurality of cylindrical hollow spaces 65 ′ of the exposed rectifying member 6 ′ have a so-called honeycomb shape in a sectional view (see FIG. 12).

  In the present embodiment, the thickness c at the outermost periphery and the downstream end of the exposed rectifying member 6 'is substantially equal to the width a of the annular rectifying space 66' viewed in the thickness direction. Moreover, in this embodiment, the inner surface of the spout 2 is cylindrical and is not tapered toward the downstream end.

  Other configurations are substantially the same as the water discharge device 1 of the embodiment described with reference to FIGS. 1 to 9. 10 to 12, the same reference numerals are given to the same components as those in the above embodiment, and detailed description thereof will be omitted.

  Also according to this embodiment, the water discharged from the water discharge port 2 is a single water flow. When this embodiment is used as, for example, an overhead shower, such a water flow forms a water film along the human body when landing, wraps the whole body, and when the water flow is a warm water flow, it is effective in increasing the deep body temperature. Is.

  In particular, according to the present embodiment, the entire side surface of the exposed rectifying member 6 ′ formed of an elastic material is a cylindrical outer rectifying surface 61 ′, and the outer peripheral rectifying surface 61 ′ and the water discharge port forming member 21. An annular rectifying space 66 ′ is formed between the two. Thereby, generation | occurrence | production of a water discharge crack is suppressed notably and a very high rectification | straightening performance is realizable.

  Also in this embodiment, the annular rectifying space 66 ′ is annular, and the length b of the annular rectifying space 66 ′ in the flow direction of water is the radial width of the downstream end of the annular rectifying space 66 ′. Since it is larger than a (see FIG. 7A), even if the water flow enters the annular rectifying space 66 ′ and is contracted, the water is sufficiently rectified in the rectifying space 66 ′, and the overall rectifying performance is Can be maintained.

  Further, since the exposed rectifying member 6 ′ is formed of an elastic material, the user can manually remove and deform the exposed rectifying member 6 ′ by pressing and deforming the exposed rectifying member 6 ′. That is, the maintenance of the exposed rectifying member 6 'can be easily performed.

  In particular, since the exposed rectifying member 6 ′ of the present embodiment is fixed so as to float with respect to the water discharge port forming member 21 via the fixing portion 7, it can be sufficiently deformed during a pressing operation by the user. .

  Furthermore, the exposed rectifying member 6 ′ of the present embodiment is provided close to the second rectifying member 5 ′. Accordingly, during the maintenance (manual pressing deformation) of the exposed rectifying member 6 ′, the second rectifying member 5 ′ can be deformed through the deformation of the exposed rectifying member 6 ′, and the second rectifying member 5 'maintenance can be performed simultaneously.

  In each of the above embodiments, the exposed rectifying members 6 and 6 ′ are provided separately from the second rectifying members 5 and 5 ′, so that the second rectifying members 5 and 5 ′ are brought into contact with foreign matter or the like. Can be effectively protected from. In order to obtain this effect, the exposed rectifying members 6, 6 'need not be elastic members. In other words, a configuration in which the exposed rectifying members 6 and 6 ′ are formed of inelastic members in the above embodiments is also included in the disclosure content of the present invention. For example, the exposed rectifying members 6, 6 ′ can be formed of a member that is more difficult to deform than the second rectifying members 5, 5 ′, such as hard plastic. In this case, the exposed rectifying members 6 and 6 ′ can effectively protect the second rectifying members 5 and 5 ′.

  Further, in each of the above embodiments, the exposed rectifying members 6 and 6 ′ have cylindrical outer rectifying surfaces 61 and 61 ′ in the region on the water discharge port side, and the outer peripheral rectifying surfaces 61 and 61 ′ are the water discharge ports. An annular rectifying space 66, 66 ′ is formed between the forming member 21 and the forming member 21. However, instead of this, the outer peripheral area of the exposed rectifying member on the water discharge port side may have an annular rectifying space. In that case, for example, the outer peripheral surface of the exposed rectifying member is fitted into the water discharge port side region of the water discharge port forming member.

  FIG. 13 is a schematic longitudinal sectional view of the water discharging device according to such an embodiment, FIG. 14 is an exploded perspective view of a main part of the water discharging device in FIG. 13, and FIG. 15 is a diagram of the water discharging device in FIG. FIG. 16 is a perspective view of the exposed rectifying member viewed from above, FIG. 16 is a perspective view of the exposed rectifying member of FIG. 15 viewed from below, and FIG. 17 is a bottom view of the water discharging device of FIG. These are the sectional views on the AA line of the water discharging apparatus of FIG.

  As shown in FIGS. 13 to 18, in the water discharge device 101 of the present embodiment, inside the water discharge port forming member 121, the water discharge port 102 side (lower side in FIG. 13) with respect to the second rectifying member 5. Further, an exposed rectifying member 106 made of an elastic material is disposed. Examples of the elastic material include silicon rubber, NBR (nitrile butyl rubber), and fluorine rubber. However, as described in paragraph 0093, the exposed rectifying member 106 may be formed of an inelastic material.

  The outer peripheral region of the exposed rectifying member 106 has an annular rectifying space 166 in the region on the water discharge port 102 side (lower side in FIG. 13). In the present embodiment, the annular rectifying space 166 is an annular space. The portion of the exposed rectifying member 106 that defines the outer periphery of the annular rectifying space 166 is an exposure that defines the inner periphery of the annular rectifying space 166 in the end region opposite to the water discharge port 102 (upper side in FIG. 13). It is fixed to the portion of the rectifying member 106 via seven bridge portions 162 provided at substantially equal intervals in the circumferential direction. Further, the portion of the exposed rectifying member 106 that defines the outer periphery of the annular rectifying space 166 further extends toward the outer peripheral side at the end opposite to the water discharge port 102 (upper side in FIG. 13) and has a large diameter. An annular flange portion 163 is formed. The exposed rectifying member 106 is fixed to the water discharge port forming member 121 by the annular flange portion 163 being sandwiched between the step portion 121 s provided on the inner surface of the water discharge port forming member 121 and the second rectifying member 5. ing. Further, the outer peripheral surface of the exposed rectifying member 106 is fitted into a region on the water outlet side of the water outlet forming member 121.

  According to this aspect, a portion on the inner peripheral side of the annular rectifying space 166 of the exposed rectifying member 106 is connected to the annular rectifying space 166 of the exposed rectifying member 106 via the seven discretely provided bridge portions 162. Since it fixes so that it may float with respect to the part which prescribes | regulates an outer periphery, and the spout formation member 121, it can fully deform | transform at the time of the pressing operation by a user.

  The exposed rectifying member 106 has a plurality of cylindrical hollow spaces 165 separated by partition walls 164 extending in the direction of water flow on the inner peripheral side with respect to the annular rectifying space 166. . In the present embodiment, each of the plurality of cylindrical hollow spaces 165 has a configuration in which each of the concentric annular regions in a sectional view is further divided into a plurality of portions in the circumferential direction (see FIGS. 15 to 18).

  The partition walls 164 have a lattice shape having intersecting line portions in plan view. As described above, the expression “lattice” in the present specification is not limited to a mode in which straight lines intersect with each other, but a mode in which straight lines and curves intersect or curves (the curvatures may be different). Including an aspect that intersects, and is not limited to an aspect in which four sides (not limited to a line segment but may be a curved line such as an arc) form a section, and includes an aspect in which three sides or five or more sides form a section, It also includes an aspect in which the entire shape that cannot recognize the “side” such as an ellipse or an ellipse is partitioned.

  And in this embodiment, as shown to Fig.19 (a), the length b of the flow direction of the water of the cyclic | annular rectification space 166 becomes larger than the radial width a of the downstream end of the cyclic | annular rectification space 166. ing.

  By adopting such a dimensional condition, even if the water flow enters the annular rectification space 166 and contracts, the rectification performance is sufficiently rectified in the rectification space 166, so that the overall rectification performance is maintained. Can do. That is, as shown in FIG. 19B, for example, if the length b is sufficiently long so that the relationship b> a is established, the current is rectified and discharged after the contraction. (FIG. 19 (c) shows a state where water is discharged without being rectified after contraction.)

  Further, in the present embodiment, as shown in FIG. 20A, in the thickness direction, rather than the thickness c at the most downstream end of the exposed rectifying member 106 that defines the inner periphery of the annular rectifying space 166. The width a of the annular rectifying space 166 as viewed is larger.

  By adopting such a dimensional condition, it is possible to maintain a relatively large amount of water flow discharged from the annular rectifying space 166, and thus it is possible to realize membrane-like (annular) water discharge. . As a result, since the entire shape of the water flow discharged from the water discharge port 102 is pulled and maintained by the film-like water discharge, the rectification performance can be further improved. That is, as shown in FIG. 20 (b), when the length of a is not sufficient, the annular rectifying space 166 is narrow and the water flow after water discharge is granulated, and the rectifying performance is not good. (If the flow path width is narrow (the flow rate is small), it is easy to granulate after water discharge. In other words, since the outer periphery of the water flow is granulated, water discharge is disturbed.)

  In the present embodiment, as shown in FIG. 21, at least the downstream end side region of the annular rectifying space 166 is tapered toward the downstream end (a truncated cone). For this reason, it is possible to effectively suppress the possibility of water discharge cracks due to the presence of the wall thickness at the most downstream end of the portion of the exposed rectifying member 106 that defines the inner periphery of the annular rectifying space 166. (Since the water that flows through the slit heads toward the center, breakage of the water flow is suppressed.)

  The gap between the downstream surface of the second rectifying member 5 (of the most downstream rectifying network 51) and the upstream surface of the exposed rectifying member 106 is also second when the exposed rectifying member 106 is elastically deformed. This is the extent that it corresponds to the rectifying member 5. That is, the exposed rectifying member 106 and the second rectifying member 5 are provided close to each other. For this reason, during the maintenance (manual pressing deformation) of the exposed rectifying member 106, the second rectifying member 5 can also be deformed through the deformation of the exposed rectifying member 106, and the maintenance of the second rectifying member 5 is maintained. Can be carried out simultaneously. However, as described above, the exposed rectifying member 106 may be formed of an inelastic material.

  Other configurations are substantially the same as the water discharge device 1 of the embodiment described with reference to FIGS. 1 to 9. In FIG. 13 to FIG. 22, the same reference numerals are given to the same components as those in the above embodiment, and detailed description thereof will be omitted.

  Next, the operation of this embodiment will be described.

  Also in the present embodiment, the water supplied from the water supply channel 3 collides with the shielding portion 43 of the first rectifying member 4 (or water that collides with the shielding portion 43 and flows backward), and then the first retention chamber. Once in 41. Thereby, it will be in the state where a water pressure swells inside the 1st residence chamber 41. FIG. Thereafter, the water retained in the first retention chamber 41 is pushed out to the water from the upstream direction, and flows out to the downstream side through the water passage hole 44 and the water passage hole 45.

  The water flowing out from the water passage hole 44 and the water passage hole 45 moves toward the center of the second retention chamber 42 by the flow straightly traveling to the water outlet 102 through the second rectifying member 5 and the surface tension and the negative pressure generated inside. It is divided into the flow to head. The latter flow in the central direction flows out to the water outlet 102 through the second rectifying member 5 after being concentrated in the central portion.

  When passing through the four rectifying nets 51 of the second rectifying member 5, the velocity vector of the water flow is aligned in the traveling direction. Thereafter, the water flow is discharged from the water outlet 102 through an annular rectifying space 166 in the outer peripheral region of the exposed rectifying member 106 and a plurality of cylindrical hollow spaces 165 on the inner peripheral side of the annular rectifying space 166. . As a result, the water discharged from the water outlet 102 becomes a single water flow. When this embodiment is used as, for example, an overhead shower, such a water flow forms a water film along the human body when landing, wraps the whole body, and when the water flow is a warm water flow, it is effective in increasing the deep body temperature. Is.

  In particular, since the annular rectifying space 166 is formed in the outer peripheral region of the discharge rectifying member 106 on the water discharge port side 102, the occurrence of water discharge cracks is remarkably suppressed, and extremely high rectification performance can be realized.

  In the present embodiment, the annular rectifying space 166 is annular, and the length b of the annular rectifying space 166 in the flow direction of water is larger than the radial width a of the downstream end of the annular rectifying space 166. (See FIG. 19A), even if the water flow enters the annular rectification space 166 and is contracted, the flow is sufficiently rectified in the rectification space 166 and the overall rectification performance can be maintained. it can.

  In the present embodiment, the width a of the annular rectifying space 166 viewed in the thickness direction is greater than the thickness c at the most downstream end of the exposed rectifying member 106 that defines the inner periphery of the annular rectifying space 166. Since this is larger (see FIG. 20A), it is possible to maintain a relatively large amount of water discharged from the annular rectifying space 166, and to realize membrane-like (annular) water discharge. can do. As a result, the entire shape of the water flow discharged from the water discharge port 102 is maintained by being pulled by the film-like water discharge, and the rectification performance can be further improved.

  In the present embodiment, at least the region on the downstream end side of the annular rectifying space 166 is tapered toward the downstream end (see FIG. 21). For this reason, it is possible to effectively suppress the possibility of water discharge cracks due to the presence of the wall thickness at the most downstream end of the portion of the exposed rectifying member 106 that defines the inner periphery of the annular rectifying space 166.

  Further, since the exposed rectifying member 106 is formed of an elastic material, the user can manually remove and deform the exposed rectifying member 106 by pressing and deforming the exposed rectifying member 106. That is, the maintenance of the exposed rectifying member 106 can be easily performed.

  In particular, the portion on the inner peripheral side of the annular rectifying space 166 of the exposed rectifying member 106 of the present embodiment is connected to the annular rectifying space of the exposed rectifying member 106 via seven discrete bridge portions 162. Since it fixes so that it may float with respect to the part which prescribes | regulates the outer periphery of 166, and the spout formation member 121, it can fully deform | transform at the time of the pressing operation by a user.

  Furthermore, the exposed rectifying member 106 of the present embodiment is provided in the vicinity of the second rectifying member 5. Thus, during the maintenance (manual pressing deformation) of the exposed rectifying member 106, the second rectifying member 5 can be deformed through the deformation of the exposed rectifying member 106, and the maintenance of the second rectifying member 5 is maintained. Can be carried out simultaneously. However, as described above, the exposed rectifying member 106 may be formed of an inelastic material.

  In the present embodiment, the exposed rectifying member 106 that defines the outer periphery of the annular rectifying space 166 is exposed to define the inner periphery of the annular rectifying space 166 in the end region opposite to the water discharge port 102. It is fixed to the portion of the rectifying member 106 via seven bridge portions 62 provided at substantially equal intervals in the circumferential direction. This effectively forms an annular rectifying space 166.

  In this embodiment as well, since the direction of water flow passing through the first rectifying member 4 and the second rectifying member 5 is the same, the velocity vectors can be efficiently aligned. Further, the rectifying effect can be further increased by increasing the number of the rectifying networks 51, increasing the thickness of each rectifying network 51, or making the mesh of each rectifying network 51 finer.

  Next, FIG. 22 is a schematic longitudinal sectional view of a water discharge device according to still another embodiment of the present invention, FIG. 23 is an exploded perspective view of a main part of the water discharge device of FIG. 22, and FIG. It is a bottom view of the water discharging apparatus of FIG.

  As shown in FIGS. 22 to 24, in the water discharging apparatus 101 ′ of the present embodiment, unlike the embodiment described with reference to FIGS. 13 to 21, the first rectifying member 4 ′ and the second rectifying member 5 ′ (rectifying member). The net 151 ′) and the exposed rectifying member 106 ′ are in an annular shape, and the fixing portion 107 penetrates them. The fixing portion 107 is supported by the first rectifying member 4 ′ via the holding ring 171.

  In particular, as shown in FIG. 22, the exposed rectifying member 106 ′ of this embodiment has a central reduced diameter portion 167 ′ supported by the large diameter portion 172 of the fixed portion 107, and has an annular flange portion 163. Not done. (The exposed rectifying member 106 ′ is fixed to the water discharge port forming member 121 via the fixing portion 107 and the first rectifying member 104.) Then, the stepped portion 121 s of the water discharge port forming member 121 has a second rectification. The member 5 (the rectifying net 51) is placed.

  Further, in the present embodiment, the plurality of cylindrical hollow spaces 165 ′ of the exposed rectifying member 106 ′ have a so-called honeycomb shape in a sectional view (see FIG. 24). Further, the exposed rectifying member 106 ′ that defines the outer periphery of the annular rectifying space 166 ′ is an exposed rectifying member that defines the inner periphery of the annular rectifying space 166 ′ in the end region opposite to the water outlet 102. It is fixed to the portion 106 ′ via three bridge portions 162 ′ provided at substantially equal intervals in the circumferential direction.

  In the present embodiment, the wall thickness c at the most downstream end of the exposed rectifying member 106 ′ that defines the inner periphery of the annular rectifying space 166 ′ and the annular rectifying space 166 ′ viewed in the thickness direction. The width a is substantially equal. In this embodiment, the annular rectifying space 166 'is cylindrical and does not taper toward the downstream end.

  Other configurations are substantially the same as the water discharging apparatus 101 of the embodiment described with reference to FIGS. 13 to 21. 22 to 24, the same reference numerals are given to the same components as those in the above embodiment, and the detailed description thereof will be omitted.

  Also according to this embodiment, the water discharged from the water discharge port 102 is a single water flow. When this embodiment is used as, for example, an overhead shower, such a water flow forms a water film along the human body when landing, wraps the whole body, and when the water flow is a warm water flow, it is effective in increasing the deep body temperature. Is.

  In particular, according to the present embodiment, the annular rectifying space 166 'is formed in the outer peripheral region of the exposed rectifying member 106' formed of an elastic material. Thereby, generation | occurrence | production of a water discharge crack is suppressed notably and a very high rectification | straightening performance is realizable.

  Also in this embodiment, the annular rectifying space 166 ′ is annular, and the length b of the annular rectifying space 166 ′ in the flow direction of water is the radial width of the downstream end of the annular rectifying space 166 ′. Since it is larger than a (see FIG. 19A), even if the water flow enters the annular rectifying space 166 ′ and is contracted, the water is sufficiently rectified in the rectifying space 166 ′, and the overall rectifying performance Can be maintained.

  Further, since the exposed rectifying member 106 ′ is formed of an elastic material, the user can manually remove the calcium precipitated in the exposed rectifying member 106 ′ by manually pressing and deforming the exposed rectifying member 106 ′. That is, the maintenance of the exposed rectifying member 106 'can be easily performed.

  In particular, a portion of the exposed rectifying member 106 ′ on the inner peripheral side of the annular rectifying space 166 ′ of the present embodiment is connected to the exposed rectifying member 106 ′ via three discrete bridge portions 162 ′. Since it fixes so that it may float with respect to the part which prescribes | regulates the outer periphery of cyclic | annular rectification | straightening space 166 ', and the spout formation member 121, it can fully deform | transform at the time of the pressing operation by a user.

  Furthermore, the exposed rectifying member 106 'of the present embodiment is provided in proximity to the second rectifying member 5'. Thus, during the maintenance (manual pressing deformation) of the exposed rectifying member 106 ′, the second rectifying member 5 ′ can be deformed through the deformation of the exposed rectifying member 106 ′, and the second rectifying member 5 'maintenance can be performed simultaneously. However, as described above, the exposed rectifying member 106 ′ may be formed of an inelastic material.

DESCRIPTION OF SYMBOLS 1, 1 'Water discharging apparatus 2 Water discharging port 21 Water discharging port formation member 3 Water supply path 31 Water supply path formation member 32 Seal ring 4, 4' 1st rectification member 41 1st retention chamber 42 2nd retention chamber 43 Shielding part 44, 44 ' Water flow holes 45, 45 ′ Water flow holes 5, 5 ′ Second flow straightening members 51, 51 ′ Flow straightening networks 6, 6 ′ Exposed flow straightening members 61, 61 ′ Outer flow straightening surface 62 Bridge portion 63 Ring flange portions 64, 64 ′ Partition wall 65, 65 ′ Hollow space 66, 66 ′ Annular rectifying space 67 ′ Central reduced diameter portion 7 Fixing portion 71 Holding ring 72 Large diameter portion 101, 101 ′ Water discharge device 102 Water discharge port 121 Water discharge port forming members 106, 106 ′ exposed Straightening members 162, 162 'Bridge portion 163 Ring flange portions 164, 164' Bulkheads 165, 165 'Hollow space 166, 166' Annular straightening space 167 'Central reduced diameter portion 107 Fixed portion 171 Retaining ring 172 Large diameter portion

Claims (17)

A spout forming member that forms a spout;
A rectifying member provided inside the spout forming member and rectifying the flow of water on the upstream side of the spout;
An exposed rectifying member that is provided inside the water discharge port forming member and on the water discharge port side with respect to the flow rectifying member, and is exposed to the water discharge port side;
A water supply channel for supplying water to the upstream side of the rectifying member;
With
The exposed rectifying member and / or the water discharge port forming member is formed so as to discharge water located in an outer peripheral portion of water discharged from the water discharge port as an annular water flow. . The exposed rectifying member has a cylindrical outer peripheral rectifying surface in a region on the water outlet side,
The water discharge device according to claim 1, wherein an annular flow straightening space is formed between the outer peripheral flow straightening surface and the water discharge port forming member. The annular rectifying space is annular,
The water discharge device according to claim 2, wherein the length of the annular rectifying space in the water flow direction is larger than the radial width of the downstream end of the annular rectifying space. The exposed rectifying member has a plurality of cylindrical hollow spaces separated by a partition wall extending in the direction of water flow,
The water discharge device according to claim 2 or 3, wherein the partition wall has a lattice shape in plan view. 5. The water discharge device according to claim 4, wherein a width of the annular rectifying space viewed in the thickness direction is larger than a thickness of the outermost outermost and downstream end of the exposed rectifying member. The water discharge device according to any one of claims 2 to 5, wherein at least a region on the downstream end side of the inner surface of the water discharge port is tapered toward the downstream end. The water discharge device according to any one of claims 2 to 6, wherein the exposed rectifying member and the rectifying member are provided close to each other. The exposure rectification member is fixed to the water discharge port forming member via a plurality of discretely provided bridge portions in a region opposite to the water discharge port. The water discharging apparatus according to any one of 7. The water discharge device according to claim 1, wherein the exposed rectification member has an annular rectification space in an outer peripheral region on the water discharge port side. The annular rectifying space is annular,
The water discharge device according to claim 9, wherein a length of the annular rectifying space in a water flow direction is larger than a radial width of a downstream end of the annular rectifying space. The exposed rectifying member has a plurality of cylindrical hollow spaces separated by partition walls extending in the direction of water flow on the inner peripheral side with respect to the annular rectifying space,
The water discharge device according to claim 9 or 10, wherein the partition wall has a lattice shape in plan view. The width of the annular rectifying space viewed in the thickness direction is larger than the thickness at the most downstream end of the portion of the exposed rectifying member that defines the inner periphery of the annular rectifying space. The water discharging apparatus according to claim 11. The water discharge device according to any one of claims 9 to 12, wherein at least a region on the downstream end side of the annular rectifying space is tapered toward the downstream end. The water discharging apparatus according to any one of claims 9 to 13, wherein the exposed rectifying member and the rectifying member are provided close to each other. The portion of the exposed rectifying member that defines the outer periphery of the annular rectifying space is located within the annular rectifying space via a plurality of discretely provided bridge portions in a region opposite to the water discharge port. The water discharging device according to any one of claims 9 to 14, wherein the water discharging device is fixed to a portion of the exposed rectifying member that defines a circumference. The water discharging apparatus according to claim 1, wherein the exposed rectifying member is formed of an elastic member. The water discharge device according to any one of claims 1 to 15, wherein the exposed rectifying member is formed of a member that is more difficult to deform than the rectifying member.

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