Rectifier and discharge device

Abstract

To increase design flexibility. [Solution] A flow rectifier provided in a discharge device that discharges fluid comprises a housing member having a flow path, a flow rectifier member disposed inside the flow path and having a first flow rectifier section, and a holding member held by the housing member and in contact with the flow rectifier member.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a rectifier and a discharge device.

Background Art

[0002] There is known a discharge device provided with a rectifying and discharging part that rectifies water and discharges the water. The rectifying and discharging part includes, for example, a discharge port forming member, a disk member and a rectifying net disposed inside the discharge port forming member. A water pipe is provided on the upstream side of the rectifying and discharging part, and the disk member and the rectifying net are held in a manner sandwiched between the discharge port forming member and the water pipe (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described discharge device, there has been a problem that since the fixing of the member disposed inside the rectifying and discharging part depends on the water pipe disposed outside the rectifying and discharging part, design changes are not easy.

[0005] This specification discloses a technology capable of solving the above-described problems.

Means for Solving the Problems

[0006] The technology disclosed in this specification can be realized, for example, in the following forms. (1) The rectifier disclosed by this specification is a rectifier provided in a discharge device that discharges a fluid, and includes a housing member having a flow path, a rectifying member disposed inside the flow path and having a first rectifying part, and a holding member held by the housing member and contacting the rectifying member.

[0007] With the above configuration, the rectifier is held within the flow path without relying on other components provided in the discharge device. This increases the degree of design flexibility.

[0008] (2) In the rectifier described in (1) above, the holding member may have a second rectifier section.

[0009] This configuration allows for improved rectification performance without increasing the number of components.

[0010] (3) In the rectifier described in (1) or (2) above, the diameter of the retaining member may be larger than the inner diameter of the flow path.

[0011] With this configuration, the retaining member is easily fixed inside the flow path by press-fitting.

[0012] (4) The rectifier described in any one of (1) to (3) above may include a plurality of rectifying members, and each of the plurality of rectifying members may include an outer frame positioned on the outer edge of the first rectifying section.

[0013] With this configuration, the pressing force from the holding member is more easily transmitted to each rectifier member through the outer frame, effectively suppressing rattle in the rectifier members. This improves the rectifier's rectifying function.

[0014] (5) The rectifier described in any one of (1) to (4) above may have a plurality of discharge holes through which the fluid is discharged, and may also have a discharge plate positioned inside the flow path on the side opposite to the holding member with respect to the rectifying member.

[0015] With this configuration, the rectifier is firmly held in place by being sandwiched between the holding member and the discharge plate. This effectively suppresses rattling of the rectifier and improves the rectifying function of the rectifier.

[0016] (6) The ejection device disclosed by this specification includes the rectifier described in any one of (1) to (5) above, and a device body that supplies the fluid to the rectifier.

[0017] According to such a configuration, the rectifying member is held inside the flow path without depending on the configuration of the device body. Thereby, the degree of freedom in design is increased.

[0018] Note that the technology disclosed in this specification can be realized in various forms. For example, it can be realized in the forms of a rectifier, an ejection device, and a manufacturing method thereof.

Brief Description of the Drawings

[0019] [Figure 1] Front view of the shower head of the embodiment [Figure 2] Side view of the shower head of the embodiment [Figure 3] Partial enlarged front view of the shower body of the embodiment [Figure 4] Partial enlarged cross-sectional view showing the shower head of the embodiment cut along line IV-IV in FIG. 1 [Figure 5] Front view of the rectifier of the embodiment [Figure 6] Exploded perspective view of the rectifier of the embodiment [Figure 7] Partial enlarged cross-sectional view showing the rectifying member of the embodiment cut along line VII-VII in FIG. 6 [Figure 8] Cross-sectional view showing the rectifier of the embodiment cut along line VIII-VIII in FIG. 5

Modes for Carrying Out the Invention

[0020] (Embodiment) The embodiments will be described with reference to Figures 1 to 8. The shower head 10 (an example of a discharge device) of this embodiment is configured to change the water discharge state by switching between multiple flow paths corresponding to multiple discharge modes. In this embodiment, the multiple discharge modes are "mist mode," "straight mode," "jet mode," and "rectified mode." The mist mode is a mode that discharges water in a mist form, the straight mode is a mode that discharges water with higher water pressure and force than the mist mode, and the jet mode is a mode that discharges the liquid with the highest water pressure. The rectified mode is a mode that discharges water that has been rectified into a columnar shape. In this embodiment, water is an example of a fluid and includes hot water and cold water.

[0021] As shown in Figure 1, the shower head 10 comprises a head body 100 (an example of the device body) and a rectifier 200 attached to the head body 100.

[0022] The head body 100 comprises a fixed flow path member 110, a movable flow path member 120, a shower plate 140, a cover 150, and a water passage pipe 160.

[0023] As shown in Figure 4, the fixed flow channel member 110 comprises a base portion 111 and a mounting shaft 113. The base portion 111 has a base flow channel 112 inside. The mounting shaft 113 is a cylindrical portion that protrudes from the base portion 111.

[0024] The movable flow channel member 120 is a member positioned downstream of the fixed flow channel member 110. As shown in Figure 4, the movable flow channel member 120 is a single unit formed by assembling a first movable member 121, a second movable member 122, and an intermediate member 123. The first movable member 121, the intermediate member 123, and the second movable member 122 are arranged in this order from the side closest to the fixed flow channel member 110. The movable flow channel member 120 has multiple distribution channels inside, corresponding to "mist mode," "straight mode," "jet mode," and "rectification mode." One of the multiple distribution channels is the first distribution channel 124, which corresponds to "rectification mode." The movable flow channel member 120 has an axial hole 125, through which a mounting shaft 113 is inserted. This allows the movable flow channel member 120 to rotate around the mounting shaft 113 relative to the fixed flow channel member 110. A screw S is threaded onto the mounting shaft 113. A washer W, having an outer diameter slightly larger than the mounting shaft 113, is sandwiched between the screw head of the screw S and the mounting shaft 113. This washer W engages with the peripheral edge of the shaft hole 125 in the movable flow channel member 120, thereby preventing the mounting shaft 113 from coming out of the shaft hole 125.

[0025] The second movable member 122 has a mounting cylinder 126 to which the rectifier 200 is attached. The mounting cylinder 126 is a cylindrical portion that is in contact with the intermediate member 123. Screw grooves 127 are arranged on the inner circumferential surface of the mounting cylinder 126. An outlet 128, which is the outlet of the first distribution channel 124, is open in the intermediate member 123. The internal space of the mounting cylinder 126 is connected to the first distribution channel 124.

[0026] As shown in Figure 1, the second movable member 122 has a plurality of discharge nozzles 131, 132, and 133, which correspond to "mist mode," "straight mode," and "jet mode," respectively. The discharge nozzles 131, 132, and 133 discharge water supplied from the distribution channels corresponding to "mist mode," "straight mode," and "jet mode," respectively.

[0027] The shower plate 140 is a component positioned downstream of the movable flow path member 120, and as shown in Figure 1, comprises a front plate 141 and a lever 146. The front plate 141 is a plate that covers the movable flow path member 120 from the downstream side. The shower plate 140 has nozzle insertion holes 142, 143, and 144, and an exposure hole 145. The tips of the discharge nozzles 131, 132, and 133 are inserted into the nozzle insertion holes 142, 143, and 144, respectively. The exposure hole 145 is a hole for exposing the rectifier 200, which is attached to the mounting cylinder 126, to the outside. The lever 146 is a plate piece that protrudes from the front plate 141. The shower plate 140 is assembled to the movable flow path member 120 and rotates in conjunction with the movable flow path member 120.

[0028] As shown in Figures 1 and 2, the cover 150 comprises a head housing 151 and a grip portion 152. The head housing 151 is a roughly dome-shaped portion, and houses a fixed flow path member 110 and a movable flow path member 120 inside. The shower plate 140 is exposed from the head housing 151. The fixed flow path member 110 is fixed to the head housing 151, and the movable flow path member 120 and the shower plate 140 are rotatable relative to the fixed flow path member 110 and the head housing 151. The grip portion 152 is a cylindrical portion extending from the head housing 151, designed to be held by the user.

[0029] The water passage pipe 160 is a pipe housed inside the grip section 152. One end of the water passage pipe 160 is connected to the fixed flow path member 110. The internal space of the water passage pipe 160 is connected to the base flow path 112. The other end of the water passage pipe 160 protrudes from the grip section 152 and is connected to the water heater via the shower hose SW.

[0030] Examples of materials for the fixed flow path member 110, the movable flow path member 120, the shower plate 140, the cover 150, and the water passage pipe 160 include synthetic resins such as ASA resin (acrylonitrile-styrene-acrylate copolymer resin) and ABS resin (acrylonitrile-butadiene-styrene copolymer resin), metals such as stainless steel, and synthetic rubbers such as EPDM (ethylene propylene diene rubber) and silicone rubber.

[0031] As shown in Figure 4-8, the rectifier 200 comprises a housing member 210, a plurality of rectifier members 220, a holding member 230, and a spray plate 240 (an example of a discharge plate). In this embodiment, the rectifier 200 comprises four rectifier members 220.

[0032] As shown in Figures 4, 6, and 8, the housing member 210 comprises a retaining ring 211 and a housing cylinder 214.

[0033] The retaining ring 211 is an annular portion having an opening 212 through which water can pass. The retaining ring 211 has a number of recesses 213 for inserting a jig (not shown) for rotating the housing member 210 when removing the housing member 210 from the mounting cylinder 126.

[0034] The housing cylinder 214 is a cylindrical part that is connected to the retaining ring 211 and extends along the central axis Ax. The housing cylinder 214 is arranged coaxially with the retaining ring 211. The outer diameter of the housing cylinder 214 is smaller than the outer diameter of the retaining ring 211, and the inner diameter Df of the housing cylinder 214 is larger than the inner diameter of the opening 212. The internal space of the housing cylinder 214 is a straightening channel 215 (an example of a channel) through which water can pass. Screw threads 216 are arranged on the outer surface of the housing cylinder 214, allowing the housing cylinder 214 to be screwed and fixed to the mounting cylinder 126.

[0035] Examples of materials for the containment member 210 include synthetic resins such as ASA resin (acrylonitrile-styrene-acrylate copolymer resin) and ABS resin (acrylonitrile-butadiene-styrene copolymer resin), metals such as stainless steel, and synthetic rubbers such as EPDM (ethylene propylene diene rubber).

[0036] The four rectifier members 220 are arranged overlapping within the rectifier flow path 215. In this embodiment, the four rectifier members 220 have the same configuration as each other, so the following description will be representative of one rectifier member 220.

[0037] The rectifier member 220 comprises a rectifier section 221 (an example of a first rectifier section) and an outer frame 224.

[0038] The flow straightening section 221 is a part that straightens the flow of water passing through the flow straightening channel 215 to flow along the central axis Ax. To straighten the water flow, the flow straightening section 221 has a plurality of regularly arranged first flow straightening holes 223 through which water can pass. More specifically, the flow straightening section 221 in this embodiment is made of mesh. The mesh is a member in which a plurality of wires 222 are woven vertically and horizontally, and has a plurality of regularly arranged gaps between the wires 222, and these gaps constitute the first flow straightening holes 223. Examples of materials for the wires 222 include metals such as stainless steel, resin, and ceramics. The number of meshes in the flow straightening section 221 may be, for example, 60 meshes. In this embodiment, the flow straightening section 221 has a circular outer shape. Note that, for the sake of readability of the drawings, the structure of the mesh constituting the holding member 230 is shown in a simplified manner in Figures 4, 6 and 8.

[0039] The outer frame 224 is a member positioned around the outer periphery of the flow straightening section 221. In this embodiment, the outer frame 224 is annular in shape and surrounds the flow straightening section 221 around its entire circumference. The portion of the flow straightening section 221 near its outer periphery is embedded inside the outer frame 224. The outer diameter of the outer frame 224 is approximately equal to or slightly smaller than the inner diameter Df of the housing cylinder 214. In this embodiment, as shown in Figure 7, the outer frame 224 has a rectangular cross-section and includes a first surface 226 and a second surface 227 parallel to the flow straightening section 221, and an outer periphery surface 225 connecting the first surface 226 and the second surface 227. The thickness T1 of the outer frame 224, expressed as the distance between the first surface 226 and the second surface 227, is greater than the thickness T2 of the flow straightening section 221, expressed as twice the wire diameter DL of the wire 222. Examples of materials for the outer frame 224 include metals such as stainless steel, resin, and ceramics. For the sake of clarity in the drawings, Figures 4, 6, and 8 show a simplified representation of the mesh structure that constitutes the rectifier section 221.

[0040] The holding member 230 is a member that holds the four rectifying members 220 in place so that they do not rattle inside the rectifying channel 215. In this embodiment, the entire holding member 230 also serves as a rectifying section (an example of a second rectifying section) that rectifies the flow of water passing through the rectifying channel 215 to flow along the central axis Ax. In order to rectify the water flow, in this embodiment the holding member 230 has a plurality of regularly arranged second rectifying holes 233 through which water can pass. More specifically, the holding member 230 in this embodiment is made of mesh. The mesh is a member in which a plurality of wires 232 are woven vertically and horizontally, similar to the mesh that constitutes the rectifying section 221, and has a plurality of regularly arranged gaps between the wires 232, and these gaps constitute the second rectifying holes 233. Examples of materials for the wires 232 include metals such as stainless steel, resin, and ceramics. The mesh that constitutes the holding member 230 may have the same wire diameter and number of meshes as the mesh that constitutes the rectifying section 221. In this embodiment, the retaining member 230 has a circular outer shape. In its undeformed state before being attached to the housing member 210, the retaining member 230 has a diameter Dm that is larger than the inner diameter Df of the housing cylinder 214. For the sake of clarity in the drawings, the mesh structure constituting the retaining member 230 is shown in a simplified manner in Figures 4, 6, and 8.

[0041] The splash plate 240 includes a main plate 241 and ribs 243. The main plate 241 is a circular plate and has a shape like a convex lens where one of the front and back surfaces is a convex surface and the other is a concave surface. The convex surface of the main plate 241 is the discharge surface 241S facing the downstream side. The main plate 241 has a plurality of discharge holes 242 through which water is discharged. As shown in FIG. 5, the region adjacent to the outer peripheral edge of the main plate 241 is an outer peripheral region AO where the discharge holes 242 are not arranged, and the region inside that is an inner region AI where the discharge holes 242 are arranged. When the total opening area, which is the sum of the opening areas of all the discharge holes 242, is Aop, and the area occupied by the outer peripheral region AO in the discharge surface 241S is Aout, Aop < Aout is satisfied. When the total area of the discharge surface 241S when it is assumed that the main plate 241 does not have the discharge holes 242 is Aall, the aperture ratio R of the main plate 241 calculated by the following formula (1) may be 15% or more and 50% or less, may be 15% or more and 25% or less, or may be 20% or more and 25% or less.

[0042] R(%)=(Aop / Aall)×100 ··· (1)

[0043] The rib 243 is a ring-shaped part that rises from the outer peripheral edge of the main plate 241 to the concave surface side. The outer diameter of the splash plate 240 is substantially equal to or slightly larger than the inner diameter Df of the housing cylinder 214. Examples of the material of the splash plate 240 include metals such as stainless steel.

[0044] The splash plate 240, the four flow rectifying members 220, and the holding member 230 are stacked in this order from the holding ring 211 side, which is the downstream side, inside the housing cylinder 214 and are arranged coaxially with the housing cylinder 214. That is, the splash plate 240 is arranged on the opposite side of the holding member 230 with respect to the flow rectifying member 220.

[0045] In this embodiment, the spray plate 240 is fixed inside the housing cylinder 214 by press-fitting. The spray plate 240 is positioned so that the discharge surface 241S faces outward, that is, toward the retaining ring 211, and its outer edge is in contact with the peripheral portion of the opening 212 in the retaining ring 211.

[0046] The four rectifier members 220 are housed inside the housing cylinder 214. The outer frames 224 of two adjacent rectifier members 220 overlap each other. There is a gap between the rectifier portions 221 of adjacent rectifier members 220. The outer frames 224 of the rectifier members 220 that are positioned adjacent to the spray plate 240 are in contact with the ribs 243 of the spray plate 240. In this embodiment, as shown in Figure 8, the first surface 226 of the outer frame 224 is in contact with the end surface 243E of the rib 243.

[0047] The retaining member 230 is fixed inside the housing cylinder 214 by press-fitting. In this embodiment, the retaining member 230, in its undeformed state before being attached to the housing member 210, has a diameter Dm that is larger than the inner diameter Df of the housing cylinder 214. In addition, the outer edge of the retaining member 230 is left in an unprocessed, cut state and has enough flexibility to be bent when pressed with a jig or the like during press-fitting. When the retaining member 230 is press-fitted inside the housing cylinder 214, the portion adjacent to the outer edge of the retaining member 230 is bent to follow the inner wall of the housing cylinder 214. The retaining member 230 is in contact with the outer frame 224 of the adjacent flow straightening member 220. The four flow straightening members 220 are sandwiched between the water spray plate 240 and the retaining member 230. Each flow straightening member 220 is not fixed to the housing member 210 by itself, but is held in place by the retaining member 230 to prevent rattling inside the housing cylinder 214. In addition, in this embodiment, a component provided on the head body 100 is in contact with the retaining member 230. More specifically, as shown in Figure 4, the screw head of the screw S, which is screwed onto the mounting shaft 113, is in contact with the central portion of the retaining member 230.

[0048] Next, we will explain the operation of the shower head 10 configured as described above.

[0049] When the user opens the faucet, water supplied from the water heater is supplied to the fixed flow channel member 110 through the shower hose SW and the water passage pipe 160, and flows into the base flow channel 112.

[0050] When the user rotates the lever 146, the shower plate 140 rotates. In conjunction with this rotation, the movable flow channel member 120 rotates relative to the fixed flow channel member 110. The shower plate 140 is displaceable between multiple designated positions corresponding to multiple discharge modes, thereby switching between multiple discharge modes. When the shower plate 140 is rotated to a position that specifies the straightening mode, the first distribution channel 124 connects to the base channel 112. The water supplied to the base channel 112 flows to the first distribution channel 124 and flows into the mounting cylinder 126 through the outlet 128. In Figure 4, the flow of water from the base channel 112 to the mounting cylinder 126 is shown by dotted arrows.

[0051] Water flowing into the mounting cylinder 126 enters the interior of the containment cylinder 214, passes sequentially through the second straightening hole 233 and the first straightening hole 223, and is discharged to the outside from the discharge hole 242. As shown by the arrows in Figure 8, the water flows in a turbulent, irregular manner upstream of the rectifier 200, but as it passes sequentially through the second straightening hole 233 and the first straightening hole 223, it becomes a laminar flow with a flow direction aligned along the central axis Ax of the mounting cylinder 126. The water, thus straightened, is discharged in a shape that does not spread out, like a single cylinder, as schematically shown by the dashed line in Figure 2. This straightening of the water reduces splashing, allowing the user to feel a softness and reduced irritation on their skin. In addition, because the discharged water has a shape that does not spread out, the surface area exposed to the air is small. Therefore, if the discharged water is hot water, heat dissipation is suppressed, allowing the user to feel warmer more easily.

[0052] In conventional shower heads, there was a concern that the rectifying effect would decrease if the rectifying member rattled inside the shower head. In this embodiment, the holding member 230 holds down the rectifying member 220, thereby suppressing rattling of the rectifying member 220 and preventing a decrease in the rectifying effect.

[0053] Conventionally, if the fixing of components provided in the rectifier relies on other components located outside the rectifier, then if either the rectifier or the other component is redesigned, the other component also needs to be redesigned accordingly. In this embodiment, the holding member 230 is fixed inside the housing cylinder 214 by press-fitting. The rectifier member 220 is held in place by this holding member 230 so that it does not rattle. In other words, the fixing of components provided in the rectifier 200 does not rely on the head body 100. Therefore, if either the rectifier 200 or the head body 100 is redesigned, the need to redesign the other component accordingly is reduced, and the degree of design freedom is increased.

[0054] In this embodiment, a component provided on the head body 100 is in contact with the holding member 230 from the side opposite to the rectifying member 220. More specifically, as shown in Figure 4, the screw head of the screw S, which is screwed to the mounting shaft 113, is in contact with the central portion of the holding member 230. This assists the holding of the rectifying member 220 by the holding member 230.

[0055] In this embodiment, the entire holding member 230 also serves as a rectifier. In other words, the holding member 230 also has a rectifier function. This makes it possible to enhance the rectifier function of the rectifier 200 without increasing the number of parts.

[0056] In this embodiment, the retaining member 230, in its undeformed state before being attached to the housing member 210, has a diameter Dm that is larger than the inner diameter Df of the housing cylinder 214. This allows the retaining member 230 to be easily fixed inside the housing cylinder 214 by press-fitting.

[0057] In this embodiment, each rectifier member 220 has an outer frame 224, and the outer frames 224 of multiple rectifier members 220 are in contact with each other. As a result, the pressing force from the holding member 230 is easily transmitted to each rectifier member 220 through the outer frame 224, and rattle of the rectifier members 220 is effectively suppressed. This enhances the rectifying function of the rectifier 200. In addition, in this embodiment, the spray plate 240 has a receiving surface (end face 243E of the rib 243) that contacts the first surface 226 of the outer frame 224. As a result, the distance between the spray plate 240 and the rectifier section 221 remains constant, and the rectifier members 220 are stably positioned.

[0058] In this embodiment, the water spray plate 240 is positioned on the opposite side of the holding member 230. As a result, the rectifier member 220 is sandwiched between the holding member 230 and the water spray plate 240 and held firmly in place. This effectively suppresses rattling of the rectifier member 220 and enhances the rectifying function of the rectifier 200.

[0059] In this embodiment, by applying a thin mesh as the retaining member 230, the area occupied by the retaining member 230 within the limited space of the rectifying flow channel 215 can be minimized, and more space can be secured for arranging the rectifying members 220. As a result, more rectifying members 220 can be placed inside the rectifying flow channel 215, improving the rectifying function of the rectifier 200.

[0060] In this embodiment, as shown in Figure 3, the outlet 128, which is the water outlet from the first distribution channel 124 to the mounting cylinder 126, is positioned off-center to the opposite side of the grip portion 152 that the user holds with their hand when using the shower head 10, that is, on the upper side when the user is using the shower head 10. This prevents water from dripping from the discharge hole 242 when the water flow is stopped. In addition, in this embodiment, the flow straightening section 221 and the holding member 230 are made of mesh. The surface tension of these meshes further prevents water from dripping from the discharge hole 242 when the water flow is stopped.

[0061] In this embodiment, the rectifier 200 is detachably attached to the head body 100. This makes maintenance of the rectifier 200 easier.

[0062] In this embodiment, the area adjacent to the outer edge of the main plate 241 of the spray plate 240 is an outer peripheral region AO where the discharge holes 242 are not located. This increases the water pressure of the water passing through the straightening channel 215, thereby increasing the discharge force. When the opening ratio R of the main plate 241 is 15% or more, the water pressure does not become too high, and the discharged water is kept from spreading out in a columnar manner.

[0063] As described above, according to this embodiment, the shower head 10 comprises a flow straightener 200 and a head body 100 that supplies water to the flow straightener 200. The flow straightener 200 comprises a housing member 210, a flow straightener member 220, and a holding member 230. The housing member 210 comprises a flow straightener channel 215. The flow straightener member 220 has a flow straightener section 221. The flow straightener member 220 is arranged inside the flow straightener channel 215. The holding member 230 is held by the housing member 210 and is in contact with the flow straightener member 220.

[0064] With the above configuration, the rectifier member 220 is held inside the rectifier flow path 215 without relying on other components provided in the shower head 10. This increases the degree of design flexibility.

[0065] In this embodiment, the holding member 230 also serves as the rectifier. With this configuration, the rectification function of the rectifier 200 can be enhanced without increasing the number of parts.

[0066] In this embodiment, the diameter Dm of the retaining member 230 is larger than the inner diameter Df of the flow straightening channel 215. With this configuration, the retaining member 230 is easily fixed inside the flow straightening channel 215 by press-fitting.

[0067] In this embodiment, the rectifier 200 comprises a plurality of rectifying members 220, each of which is provided with an outer frame 224 positioned on the outer periphery of the rectifying section 221. With this configuration, the pressing force from the holding member 230 is more easily transmitted to the rectifying members 220 through the outer frame 224, effectively suppressing rattle of the rectifying members 220. This enhances the rectifying function of the rectifier 200.

[0068] In this embodiment, the rectifier 200 is equipped with a spray plate 240. The spray plate 240 has a plurality of discharge holes 242 from which water is discharged. The spray plate 240 is positioned inside the rectifier flow path 215 on the opposite side of the holding member 230 from the rectifier member 220. With this configuration, the rectifier member 220 is sandwiched and firmly held between the holding member 230 and the spray plate 240. As a result, rattling of the rectifier member 220 is effectively suppressed, and the rectifier function of the rectifier 200 is enhanced.

[0069] (modified version) The technologies disclosed herein are not limited to the embodiments described above and can be modified in various forms without departing from their essence, for example, the following modifications are possible. (1) The retaining member does not need to have an outer diameter larger than the inner diameter of the flow path. The method of fixing the retaining member to the housing member does not have to be press-fit. For example, the retaining member may be fixed to the inner wall of the flow path with adhesive. Alternatively, a projection may be placed on one of the retaining member or the inner wall of the flow path, and a recess may be placed on the other, with the projection being housed in the recess, thereby fixing the retaining member inside the flow path. Alternatively, the entire retaining member or a part thereof may be placed outside the flow path. The same applies to the discharge plate. (2) The number of rectifier components provided in the rectifier may be two or fewer, or four or more. (3) The first and second rectifiers do not have to have the same configuration. For example, the first and second rectifiers may have different wire diameters. Alternatively, the first and second rectifiers may have different mesh counts. (4) The first flow straightening section can be modified into various forms as long as it has the function of straightening the flow of water passing through the inside of the flow path. For example, the first flow straightening section may be a wire mesh in which multiple strands are joined by welding, or it may be perforated metal or expanded metal. Alternatively, the material of the first flow straightening section does not have to be metal. The first flow straightening section may be, for example, a resin plate having multiple regularly arranged holes. (5) The outer frame does not have to be placed around the entire outer edge of the flow straightening section; it may be placed only in part. Alternatively, the flow straightening member may not have an outer frame. (6) The retaining member does not have to have a flow straightening section, and can be made into various forms as long as it has the function of holding the flow straightening member without blocking the flow of water flowing into the flow path. For example, the retaining member may be an O-ring or a C-ring. Alternatively, a part of the retaining member may be a flow straightening section. The material of the retaining member does not have to be metal, and may be, for example, resin or rubber. (7) The retaining member does not need to be in contact with the rectifying member around its entire circumference. (8) The material of the discharge plate does not have to be metal; for example, it may be a resin plate having discharge holes. (9) The rectifier does not have to have a discharge plate. For example, the housing member may have parts such as ribs or protrusions that sandwich the rectifier member between itself and the holding member. (10) The housing member only needs to have a flow path for housing the flow straightening member, and does not have to be cylindrical. The outer diameters of the flow straightening member, the holding member, and the discharge plate do not have to be circular, and can be changed to various shapes depending on the shape of the flow path provided in the housing member. (11) The holding member does not need to press down on the rectifier member; it is sufficient that it holds the rectifier member in a manner that prevents it from rattling. (12) The components provided on the main body of the device do not need to be in contact with the retaining member. (13) The dispensing device does not have to be a shower head that the user holds in their hand, but may be fixed to a wall or ceiling, or embedded in the ceiling, for example. (14) In the above embodiment, "mist mode," "straight mode," "jet mode," and "rectification mode" were given as examples of multiple discharge modes set in the shower head 10, but the setting of discharge modes is arbitrary. For example, the number of discharge modes that the shower head has may be three or less, or it may be five or more. The types of discharge modes that the shower head has may include pure straight mode, massage mode, bubble mode, water stop mode, etc. [Explanation of Symbols]

[0070] 10: Shower head (discharge device) 100: Head body (device body) 110: Fixed flow path member 111: Base part 112: Base flow path 113: Mounting shaft 120: Movable flow path member 121: First movable member 122: Second movable member 123: Intermediate member 124: First distribution flow path 125: Shaft hole 126: Mounting cylinder 127: Screw groove 128: Outlet 131, 132, 133: Discharge nozzle 140: Shower plate 141: Front plate 142, 143, 144: Nozzle insertion hole 145: Exposed hole 146: Lever 150: Cover 151: Head housing part 152: Grip part 160: Water passage pipe 200: Rectifier 210: Housing member 211: Retaining ring 212: Opening 213: Recess 214: Containing cylinder 215: Flow straightening channel (flow channel) 216: Screw thread 220: Flow straightening member 221: Flow straightening section (first flow straightening section) 222: Wire 223: First flow straightening hole 224: Outer frame 225: Outer surface 226: First surface 227: Second surface 230: Holding member (second flow straightening section) 232: Wire 233: Second flow straightening hole 240: Spray plate (discharge plate) 241: Main plate 241S: Discharge surface 242: Discharge hole 243: Rib 243E: End face Ax: Center axis DL: Wire diameter Df: Inner diameter Dm: Diameter S: Screw SW: Shower hose W: Washer

Claims

1. A flow rectifier provided in a discharge device that discharges fluid, A housing member equipped with a flow path, A flow straightening member having a first flow straightening section is disposed inside the flow path, A holding member held by the housing member and in contact with the rectifying member, A rectifier equipped with the following features.

2. A rectifier according to claim 1, The holding member has a second rectifier section, Rectifier.

3. A rectifier according to claim 1 or claim 2, The diameter of the retaining member is larger than the inner diameter of the flow path. Rectifier.

4. A rectifier according to claim 1 or claim 2, The system comprises multiple rectifier members, Each of the multiple rectifier members is The first rectifier section comprises an outer frame positioned on its outer peripheral edge, Rectifier.

5. A rectifier according to claim 1 or claim 2, The fluid is discharged from a plurality of discharge holes, and the discharge plate is positioned inside the flow path on the side opposite to the holding member relative to the rectifying member, Rectifier.

6. A rectifier according to claim 1 or claim 2, The apparatus body that supplies the fluid to the rectifier, A dispensing device equipped with the following features.

Images