Shower head

Abstract

To provide a shower head capable of spraying liquid and stopping spraying the liquid by rotating a head body with respect to a grip body.SOLUTION: A shower head includes: a grip body having a polygonal grip cylinder body and a liquid flow passage; and a head body having a polygonal head cylinder body and a plurality of liquid outflow passages. The head body is rotatably supported with respect to the grip body. One head side plate of the head cylinder body has a liquid injection body connected to one liquid outflow passage, and the other one head side plate of the head cylinder body has a drain I body connected to the other liquid outflow passage. When the one head side plate is positioned on one grip side plate of the grip cylinder body, the liquid injection body is communicated with the liquid flow passage. When the other one head side plate is positioned on the one grip side plate, the drain body is communicated with the liquid flow passage.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a showerhead. [Background technology]

[0002] Patent Document 1 discloses a showerhead. The showerhead has a grip and a head fixed to the grip. The showerhead sprays liquid from each shower hole in the head. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-100633 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, although liquid can be sprayed from the shower holes, it is not possible to stop the spray of liquid from the shower holes by operating the head portion. In Patent Document 1, it is not possible to operate the head portion to switch between different spray forms, such as linear, band, and mist.

[0005] The present invention provides a showerhead that can spray liquid and stop spraying liquid by rotating the head body relative to the grip body. The present invention provides a showerhead that can switch between mist, line, band, and other spray patterns by rotating the head body relative to the grip body. [Means for solving the problem]

[0006] Claim 1 of the present invention provides a grip body comprising a grip cylinder body formed in a polygonal cylindrical shape, a grip body having a liquid flow path formed in the grip cylinder body, and liquid flowing into the liquid flow path from one cylindrical end of the grip cylinder body, a head cylinder body formed in a polygonal cylindrical shape, and a head body having a plurality of liquid outflow paths formed within the head cylinder body, wherein the head body is supported by the grip cylinder body with the other cylindrical end of the head cylinder body facing the other cylindrical end of the grip cylinder body, and is disposed rotatably relative to the grip body around the cylindrical center line of the grip cylinder body, and each head side plate of the head cylinder body is positioned at one grip side plate of the grip cylinder body by the rotation of the head body relative to the grip body, and one of the head cylinder body the head side plate has a liquid ejection body that is connected to one of the liquid outlet channels and ejects liquid from the one of the liquid outlet channels; the other head side plate of the head cylindrical body has a drain body that is connected to the other of the liquid outlet channels and drains liquid from the other of the liquid outlet channels; the one of the liquid outlet channels is blocked from the liquid flow path when the other head side plate is positioned on the one of the grip side plates and communicates with the liquid flow path when the one of the head side plate is positioned on the one of the grip side plates; the other of the liquid outlet channels is blocked from the liquid flow path when the one of the head side plate is positioned on the one of the grip side plates and communicates with the liquid flow path when the other head side plate is positioned on the one of the grip side plates.

[0007] The second aspect of the present invention relates to a grip body having a grip tube main body formed in a rectangular cylindrical shape, a head body having a head tube main body formed in a rectangular cylindrical shape and first to fourth liquid outflow paths formed in the head tube main body, the first to fourth head side plates of the head tube main body being positioned at one of the grip side plates by rotation of the head body relative to the grip body, the first head side plate having a mist liquid jetting body, the mist liquid jetting body being connected to the first liquid outflow path, and jetting liquid from the first liquid outflow path. the second head side plate has a linear liquid-jet body, the linear liquid-jet body is connected to the second liquid outlet channel and sprays the liquid from the second liquid outlet channel in a linear shape; the third head side plate has a drain body, the drain body is connected to the third liquid outlet channel and drains the liquid from the third liquid outlet channel; the fourth head side plate has a strip-shaped liquid-jet body, the strip-shaped liquid-jet body is connected to the fourth liquid outlet channel and sprays the liquid from the fourth liquid channel in a strip shape; the first liquid outlet channel is connected to the second head side plate When the first head side plate, the third head side plate or the fourth head side plate is positioned on one of the grip side plates, the second liquid outflow path is blocked from the liquid flow path, and when the first head side plate is positioned on one of the grip side plates, the second liquid outflow path is blocked from the liquid flow path, and when the second head side plate is positioned on one of the grip side plates, the second liquid outflow path is blocked from the liquid flow path, and when the second head side plate is positioned on one of the grip side plates, the third liquid outflow path is blocked from the liquid flow path, and when the first head side plate, the third head side plate or the fourth head side plate is positioned on one of the grip side plates, the 2. The showerhead according to claim 1, wherein when the second head side plate or the fourth head side plate is positioned on one of the grip side plates, the second head side plate is blocked from the liquid flow path, and when the third head side plate is positioned on one of the grip side plates, the fourth liquid outflow path is blocked from the liquid flow path when the first head side plate, the second head side plate, or the third head side plate is positioned on one of the grip side plates, and when the fourth head side plate is positioned on one of the grip side plates, the fourth liquid outflow path is blocked from the liquid flow path, and when the fourth head side plate is positioned on one of the grip side plates, the fourth liquid outflow path is connected to the liquid outflow path. [Effects of the Invention]

[0008] In claim 1, liquid can be sprayed from the liquid sprayer by rotating the head body relative to the grip body and positioning one head side plate of the head cylinder main body at one grip side plate of the grip body. In claim 1, spraying of liquid from the liquid sprayer can be stopped by rotating the head body relative to the grip body and positioning the other head side plate at the grip side plate.

[0009] In claim 2, by rotating the head body relative to the grip body and positioning the first head side plate, the second head side plate, and the fourth head side plate on one of the grip side plates of the grip tube body, the spray form can be switched between mist, line, and band. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a front perspective view of the shower head. [Figure 2] FIG. 2 is a rear perspective view of the shower head. [Figure 3] FIG. 2 is a front view of the shower head. [Figure 4] FIG. 2 is a left side view of the shower head. [Figure 5] FIG. 2 is a right side view of the shower head. [Figure 6] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 7] 5 is a cross-sectional view of FIG. 4 taken along line B-B. [Figure 8] FIG. 5 is an enlarged view of part C in FIG. [Figure 9] FIG. 6 is an enlarged view of part D in FIG. 5. [Figure 10] FIG. 7 is an enlarged view of part E in FIG. 6. [Figure 11] FIG. 8 is an enlarged view of part F in FIG. 7. [Figure 12] 8A is an enlarged view of the GG cross section of FIG. 8, and FIG. 8B is an enlarged view of the HH cross section of FIG. [Figure 13] FIG. 12 is an enlarged cross-sectional view of a portion II in FIG. [Figure 14] FIG. [Figure 15] 15 is a cross-sectional view of FIG. 14 . [Figure 16] 1A is a front view of the switching base, and FIG. 1B is a plan view of the switching base. [Figure 17] 16(a) is a bottom view of the switching base, and FIG. 16(b) is a cross-sectional view taken along the line KK of FIG. 16(b). [Figure 18] 16(a) is a cross-sectional view taken along line LL in FIG. 16(b), and FIG. 16(b) is a cross-sectional view taken along line MM in FIG. 16(a). [Figure 19] FIG. 2(a) is a front view showing the mist liquid spray plate, and FIG. 2(b) is a back view showing the mist liquid spray plate. [Figure 20] 19(b) is a cross-sectional view taken along the line NN in FIG. [Figure 21] FIG. 2(a) is a front view showing the injection guide, and FIG. 2(b) is a rear view showing the injection guide. [Figure 22] FIG. 22(b) is a cross-sectional view taken along line OO of FIG. [Figure 23] FIG. 10 is a front view showing the showerhead with the second head side plate of the cylindrical head body positioned on one grip side plate of the cylindrical grip body. [Figure 24] When the second head side plate is positioned on one grip side plate, (a) is a cross-sectional view showing the linear liquid spray body and the strip-shaped liquid spray body, and (b) is a cross-sectional view showing the mist liquid spray body and the drain body. [Figure 25] FIG. 10 is a front view showing the showerhead with the third head side plate of the cylindrical head body positioned on one of the grip side plates of the cylindrical grip body. [Figure 26] When the third head side plate is positioned on one of the grip side plates, (a) is a cross-sectional view showing the drain body and mist liquid spray body, and (b) is a cross-sectional view showing the strip-shaped liquid spray body and linear liquid spray body. [Figure 27] FIG. 10 is a front view showing the showerhead with the fourth head side plate of the cylindrical head body positioned on one grip side plate of the cylindrical grip body. [Figure 28] When the fourth head side plate is positioned on one of the grip side plates, (a) is a cross-sectional view showing the strip-shaped liquid spray body and the linear liquid spray body, and (b) is a cross-sectional view showing the mist liquid spray body and the drain body. DETAILED DESCRIPTION OF THE INVENTION

[0011] A showerhead according to the present invention will be described with reference to FIGS.

[0012] 1 to 28, the showerhead X includes a grip body G, a head body H, and a flow path switching body V (switching body).

[0013] As shown in FIGS. 1 to 11, 14 and 15, the grip body G has a grip cylinder main body 1, a connecting joint 2, a liquid inlet pipe 3, a valve seat holder 4, and a liquid flow path α.

[0014] As shown in Figures 1 to 5, 14 and 15, the grip tube body 1 is formed in a polygonal (polygonal cross section) cylindrical shape. The grip tube body 1 is formed in a quadrangular (square) cylindrical shape, for example, a quadrangular truncated pyramid cylindrical shape with a quadrangular (square cross section). The grip tube body 1 has grip side plates 6 to 9 in the same number as the number of corners of the grip tube body 1. Each of the grip side plates 6 to 9 is formed (disposed) between each of the tube ends 1A, 1B (each of the tube end faces) of the grip tube body 1 in the direction A of the tube center line a of the grip tube body 1.

[0015] As shown in FIGS. 14 and 15, the connecting joint 2 has a connecting tubular portion 11, a partition plate 12 (partition portion), a connecting protrusion 13, and a plurality of liquid inlet holes .

[0016] 5, the partition plate 12 is disposed inside the connecting tubular portion 11 and fixed to the connecting tubular portion 11. The partition plate 12 divides the inside of the connecting tubular portion 11 into a liquid inflow space β on one tubular end 11A side of the connecting tubular portion 11 and a tube insertion space γ on the other tubular end 11B side of the connecting tubular portion 11.

[0017] 15, the connecting protrusion 13 is arranged concentrically with the connecting tubular portion 11. The connecting protrusion 13 protrudes from the partition plate 12 toward one tubular end 11A of the connecting tubular portion 11, and is arranged in the liquid inflow space β.

[0018] 15, each liquid inlet hole 14 is formed in the partition plate 12 between the connecting tube portion 11 and the connecting protrusion portion 13. Each liquid inlet hole 14 penetrates the partition plate 12 and opens into the liquid inlet space β and the tube insertion space γ.

[0019] 15, the connecting joint 2 is disposed inside the grip cylinder body 1 with the other cylinder end 11B of the connecting cylinder portion 11 facing the other cylinder end 11B (cylinder end surface) of the grip cylinder body 1. The connecting joint 2 is fixed to the grip cylinder body 1.

[0020] As shown in Figure 15, the liquid inlet pipe 3 is disposed inside the grip cylinder body 1 between the connecting joint 2 and the other cylinder end 1B of the grip cylinder body 1. The liquid inlet pipe 3 is fixed to the connecting joint 2 (connecting cylinder portion 11) by inserting one pipe end side of the liquid inlet pipe 3 into the pipe insertion space γ of the connecting joint 2. The liquid inlet pipe 3 is disposed so that the other pipe end 3B side of the liquid inlet pipe 3 protrudes from the other cylinder end 1B (top surface / upper cylinder end surface) of the grip cylinder body 1.

[0021] As shown in FIG. 15, the valve seat holder 4 has a holder cylindrical main body 16, a holder closing plate 17 (closing portion), and a plurality of liquid flow holes 19.

[0022] 15, the holder cylindrical body 16 has a small-diameter cylindrical portion 21 and a large-diameter cylindrical portion 22. The small-diameter cylindrical portion 21 is formed with a stepped portion 23 (outer peripheral stepped portion) extending from one cylindrical end of the large-diameter cylindrical portion 22, thereby reducing the diameter. The large-diameter cylindrical portion 22 is formed with a stepped portion 24 (inner peripheral stepped portion) extending from one cylindrical end of the small-diameter cylindrical portion 21, thereby increasing the diameter.

[0023] As shown in FIG. 15, the holder closing plate 17 closes the other cylindrical end of the small diameter cylindrical portion 21 (holder cylindrical main body 16) and is fixed to the small diameter cylindrical portion 21.

[0024] As shown in FIG. 15, each liquid flow hole 19 penetrates the holder closing plate 17 and opens into the holder cylindrical body 16 (inside the small diameter cylindrical portion 21).

[0025] As shown in Figure 15, the valve seat holder 4 is placed inside the grip tube body 1. The valve seat holder 4 is placed in the connecting joint 2 (connecting tube portion 11) by inserting the small diameter tube portion 21 into the liquid inflow space β from one tube end 11A of the connecting tube portion 11. The valve seat holder 4 is placed inside the connecting tube portion 11 with the holder closing plate 17 abutting against the connecting protrusion 13. The valve seat holder 4 is fixed to the connecting joint 2.

[0026] 15, the liquid flow path α is formed inside the grip cylindrical body 1. The liquid flow path α is formed between the cylindrical ends 1A, 1B (each cylindrical end surface) of the grip cylindrical body 1. The liquid flow path α is formed by the liquid inlet pipe 3 (inside the liquid inlet pipe 3), each liquid inlet hole 14, the liquid inlet space β, each liquid circulation hole 19, and the inside of the holder cylindrical body 16.

[0027] As shown in Figures 1 to 13 and 16 to 22, the head body H has a head tube main body 26, a head blocking portion 27, a support tube main body 28, a switching base W, a plurality of liquid outflow paths σ1 to σ4 formed in the head tube main body 26, a plurality of liquid inflow paths λ1 to λ4 formed in the head tube main body 26, a straightening plate Y (straightening plate), a plurality of liquid ejection bodies M, N, T that eject liquid, and a drain body S that discharges the liquid.

[0028] As shown in FIGS. 1 to 5, the head tube body 26 is formed in a polygonal (polygonal cross-section) cylindrical shape. The head tube body 26 is formed in a cylindrical shape with the same number of corners as the grip tube body 1. The head tube body 26 is formed in a quadrangular (square) cylindrical shape, for example, a quadrangular truncated pyramid cylindrical shape with a quadrangular (square cross-section). The head tube body 26 has first to fourth head side plates 29 to 32, the number of which is the same as the number of corners of the head tube body 26. The head side plates 29 to 32 are formed (disposed) between the respective cylinder ends 26A, 26B of the head tube body 26 in the direction B of the tube center line b of the head tube body 26.

[0029] As shown in FIGS. 1 to 7 and 10, the head closing portion 27 closes one cylinder end 26A (bottom surface / bottom end surface) of the head cylinder main body 26 and is fixed to the head cylinder main body 26.

[0030] As shown in FIG. 10 , the support tube main body 28 has a claw portion P. The claw portion P is arranged on one tube end side of the support tube main body 28. The claw portion P is arranged to protrude into the support tube main body 28 from the inner circumferential surface of the support tube main body 28. The support tube main body 28 is arranged concentrically with the head tube main body 26. The support tube main body 28 is fixed to the head tube main body 26 by abutting the other tube end of the support tube main body 28 against the other tube end 26B (upper surface / upper end surface) of the head tube main body 26.

[0031] 16 to 18, the switching base W forms a plurality of liquid outflow channels σ1 to σ4 and liquid inflow channels λ1 to λ4 within the head cylinder main body 26. The switching base W has a plurality of liquid outflow pipes 33 to 36, a base closing portion 37, and a valve body F.

[0032] As shown in Figures 16 to 18, each of the liquid outflow pipes 33-36 is arranged with one pipe end 33A-36A of each liquid outflow pipe 33-36 facing the center line c (center) of the switching base W. Each of the liquid outflow pipes 33-36 is arranged so that the pipe center line d of each liquid outflow pipe 33-36 is perpendicular to (intersects) the center line c of the switching base W. Each of the liquid outflow pipes 33-36 is arranged in the circumferential direction (around the center line c) of the switching base W, with intervals (angle: 90 degrees) between each other. Each of the liquid outflow pipes 33-36 is arranged radially from the center line c of the switching base W, with one pipe end 33A-36A located on the side of the center line c of the switching base W.

[0033] 18(b), the base closing portion 37 closes one pipe end 33A to 36A of each liquid outflow pipe 33 to 36, and is fixed to each liquid outflow pipe 33 to 36. One pipe end 36A of each liquid outflow pipe 33 to 36 is closed.

[0034] As shown in FIGS. 16 to 18, the valve body F forms liquid inflow channels λ1 to λ4 within the head tube main body 26. The valve body F has multiple valve body tubular portions 38 to 41. Each valve body tubular portion 38 to 41 is arranged on one tube end 33A to 36A of each liquid outflow pipe 33 to 36. Each valve body tubular portion 38 to 41 is arranged on a circle Cr of radius r centered on the center line c of the switching base W. Each valve body tubular portion 38 to 41 is arranged at intervals (90-degree intervals) between each other in the circumferential direction (around the center line c) of the switching base W. Each valve body tubular portion 38 to 41 is fixed to each liquid outflow pipe 33 to 36 so that the tube center line e of the valve body tubular portion 38 to 41 is perpendicular to the tube center line d of each liquid outflow pipe 33 to 36. Each of the valve body cylindrical portions 38-41 has one cylindrical end 38A-41A in contact with each of the liquid outflow pipes 33-36, and is connected to each of the liquid outflow pipes 33-36 (each of the liquid outflow channels σ1-σ4).

[0035] As shown in Figures 6, 7, 10, and 11, the switching base W is disposed within the head tube main body 26. The switching base is disposed concentrically with the head tube main body 26. The switching base W is disposed within the head tube main body 26 with the other tube ends 38B-41B of the valve body tube portions 38-41 facing the other tube end 26B of the head tube main body 26. The switching base W is disposed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plates 29-32 with the other tube ends 33B-36B of the liquid outflow pipes 33-36 facing the head side plates 29-32. The switching base W is fixed to the head tube main body 26 with the valve body tube portions 38-41 disposed inside the support tube main body 28. The switching base W disposes the liquid outflow pipes 33-36 within the head tube main body 26, thereby forming liquid outflow paths σ1-σ4 within the head tube main body 26. The switching base W (valve body F) has the valve body cylindrical portions 38 to 41 disposed within the head cylindrical body 26, thereby forming the liquid inflow channels λ1 to λ4 within the head cylindrical body 26.

[0036] As shown in FIG. 10 , the first liquid outflow pipe 33 is disposed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plate 29, with the other tube end 33B facing the first head side plate 29. As shown in FIG. 11 , the second liquid outflow pipe 34 is disposed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plate 30, with the other tube end 34B facing the second head side plate 30. The liquid outflow pipe 34 is disposed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plate 31, with the other tube end 35B facing the third head side plate 31. As shown in FIG. 11 , the fourth liquid outflow pipe 36 is disposed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plate 32, with the other tube end 36B facing the fourth head side plate 32. Each of the liquid outflow pipes 33 to 36 is fixed to the head tube main body 26.

[0037] As shown in Figures 10, 11, 17(a), and 18, the liquid outflow channels σ1 to σ4 are formed in the head tube main body 26. The liquid outflow channels σ1 to σ4 are formed in the liquid outflow pipes 33 to 36 arranged in the head tube main body 26. The liquid outflow channels σ1 to σ4 are arranged between one pipe end 33A to 36A and the other pipe end 33B to 36B of the liquid outflow pipes 33 to 36, and are formed in the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plates 29 to 32.

[0038] The first liquid outflow path σ1 is formed in the liquid outflow pipe 33. The liquid outflow path σ1 is disposed between the pipe ends 33A, 33B of the liquid outflow pipe 33, and is formed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plates 29. The second liquid outflow path σ2 is formed in the liquid outflow pipe 34. The liquid outflow path σ2 is disposed between the pipe ends 34A, 34B of the liquid outflow pipe 34, and is formed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plates 30. The third liquid outflow path σ3 is formed in the liquid outflow pipe 35. The liquid outflow path σ3 is disposed between the pipe ends 35A, 35B of the liquid outflow pipe 35, and is formed within the head tube main body 26 between the tube center line b of the head tube main body 26 and the head side plates 31. The fourth liquid outflow path σ4 is formed in the liquid outflow pipe 36. The liquid outflow path σ4 is disposed between the pipe ends 36A, 36B of the liquid outflow pipe 36 and is formed within the head cylinder body 26 between the cylinder center line b of the head cylinder body 26 and the head side plates 32.

[0039] Each liquid inflow channel λ1, λ3, λ4 (first, second, and fourth liquid inflow channels) is a liquid inflow hole and is formed in each valve body cylindrical portion 38, 39, 41. Each liquid inflow channel λ1, λ2, λ4 is disposed between one cylindrical end 38A, 39A, 41A and the other cylindrical end 38B, 39B, 41B of each valve body cylindrical portion 38, 39, 41. Each liquid inflow channel λ1, λ2, λ4 opens to the other cylindrical end 38B, 39B, 41B of each valve body cylindrical portion 38, 39, 41, and is connected to each liquid outflow channel σ1, σ2, σ4.

[0040] As shown in Figures 10 and 18(a), the liquid inflow channel λ3 (third liquid inflow channel) is an injection nozzle formed in the valve body tubular portion 40. The liquid inflow channel λ3 is disposed between the respective tubular ends 40A, 40B of the valve body tubular portion 40 and opens into the other tubular end 40B. The liquid inflow channel λ3 is formed in a conical shape whose diameter gradually decreases from one tubular end 40A of the valve body tubular portion 40 toward the other tubular end 40A, and opens into the liquid outflow channel σ3. The liquid inflow channel λ3 is connected to the liquid outflow channel σ (in the liquid outflow pipe 35). The liquid inflow channel λ3 has an injection port φ that opens into the liquid outflow channel σ3 (in the liquid outflow pipe 35). The injection port φ is formed in a circular shape with a very small diameter. The injection port φ is formed in a circular shape with a diameter of 0.5 mm or less, for example, 0.3 mm. The liquid inflow path λ3 has an injection port φ that opens to the liquid outflow path σ3, and is connected to the liquid outflow path σ3 (inside the liquid outflow pipe 35).

[0041] 11 and 13, the rectifying plate Y is disposed in the fourth liquid outflow channel σ4 (inside the liquid outflow pipe 36) with the plate surface Ya of the rectifying plate Y facing the fourth head side plate 32 and the plate back surface Yb ​​of the rectifying plate Y facing the cylinder center line b of the head cylinder main body 26. The rectifying plate Y is disposed in the liquid outflow channel σ4 with the plate surface Ya and the plate back surface Yb ​​of the rectifying plate Y parallel to the cylinder center line b of the head cylinder main body 26. As shown in FIG. 11, the rectifying plate Y is fixed to the liquid outflow pipe 36 on the other cylinder end 36B side of the liquid outflow pipe 36, blocking the inside of the liquid outflow pipe 36.

[0042] As shown in FIGS. 11 and 13, the rectifying plate Y has a plurality of rectifying holes 43. The rectifying holes 43 are arranged in a plurality of rows q1 to q5 in a direction perpendicular to the cylinder center line b of the head cylinder main body 26. The rectifying holes 43 are arranged in a plurality of rows p1 to p5 with equal intervals between each rectifying hole 43. The rectifying holes 43 penetrate the rectifying plate Y in a direction perpendicular to the rear surface Yb ​​(each of the rows q1 to q5) of the rectifying plate Y, and are opened to the front surface Ya and the rear surface Yb ​​of the rectifying plate Y. Each rectifying hole 43 is formed as a conical hole whose diameter gradually increases from the rear surface Yb ​​of the rectifying plate Y toward the front surface Ya.

[0043] 1, 3, and 10, the first head side plate 29 has a mist liquid ejector M, which is a liquid ejector that ejects liquid from the first liquid outlet channel σ1 in the form of mist. The mist liquid ejector M is disposed on the first head side plate 29.

[0044] As shown in Figures 1, 3, 10, and 19 to 22, the mist liquid sprayer M has a mist liquid spray plate 45, a connecting tube portion 46 (first connecting tube portion), multiple spray holes 47, multiple spray throttling holes 48, and a spray guide 49.

[0045] 10, 19(a), and 20, the connecting tube portion 46 is arranged on the back surface 45B of the mist liquid spray plate 45. The connecting tube portion 46 protrudes from the back surface 45B of the mist liquid spray plate 45 and is fixed to the mist liquid spray plate 45.

[0046] Each injection hole 47 is formed in the mist liquid injection plate 45, as shown in Figures 1, 3, 10, 19(a), and 20. Each injection hole 47 is arranged inside the connecting tube portion 46. Each injection hole 47 is arranged in the mist liquid injection plate 45 with a gap between each injection hole 47. Each injection hole 47 is opened in the plate surface 45A of the mist liquid injection plate 45. Each injection hole 47 extends from the plate surface 45A of the mist liquid injection plate 45 toward the plate back surface 45B. Each injection hole 47 is formed in a circular shape.

[0047] Each injection throttle hole 48 is formed in the mist liquid injection plate 45, as shown in Figures 1, 3, 10, 19, and 20. Each injection throttle hole 48 is arranged inside the connecting tube portion 46. Each injection throttle hole 48 is arranged concentrically with each injection hole 47. Each injection throttle hole 48 is arranged at intervals (equidistant intervals) between each injection throttle hole 48. Each injection throttle hole 48 is arranged between the plate back surface 45B of the mist liquid injection plate 45 and each injection hole 47, and is formed continuous with each injection hole 47. Each injection throttle hole 48 is opened on the plate back surface 45B of the mist liquid injection plate 45. Each injection throttle hole 48 is formed as a conical hole whose diameter gradually decreases from the plate back surface 45B of the mist liquid injection plate 45 toward each injection hole 47.

[0048] As shown in FIGS. 10, 21 and 22, the injection guide 49 has a core guide plate 50 and a plurality of injection guide cores 51, the number of which is the same as the number of injection holes 47.

[0049] 21 and 22, the core guide plate 50 has a plurality of liquid introduction holes 52. Each liquid introduction hole 52 penetrates the core guide plate 50 and opens on a plate front surface 50A and a plate back surface 50B of the core guide plate 50.

[0050] As shown in Figures 21 and 22, each injection guide core 51 is formed in a conical spiral shape. Each injection guide core 51 has a conical top surface 51A, a conical bottom plane 51B, a conical side surface 51C, and a plurality of identical spiral surfaces 53, 54. Each injection guide core 51 has, for example, a first spiral surface 53 and a second spiral surface 54. Each injection guide core 51 has a cone height HG that is shorter than the hole length of each injection orifice 48.

[0051] As shown in Figures 21 and 22, the first and second spiral surfaces 53, 54 intersect the cone side surface 51C and are arranged between the cone bottom plane 51B and the cone top plane 51A. The first and second spiral surfaces 53, 54 are arranged symmetrically with respect to the cone center line m of the injection guide core 51. The first spiral surface 53 is formed in a spiral shape along the second spiral surface 54 while narrowing in diameter from the cone bottom plane 51B. The second spiral surface 54 is formed in a spiral shape along the first spiral surface 53 while narrowing in diameter from the cone bottom plane 51B.

[0052] 21 and 22, each injection guide core 51 is disposed on the core guide plate 50 between each liquid introduction hole 52 of the core guide plate 50. Each injection guide core 51 is fixed to the core guide plate 50 with its conical bottom plane 51B abutting against the plate surface 50A of the core guide plate 50.

[0053] The mist liquid ejector M is disposed on the first head side plate 29 as shown in FIGS.

[0054] 10, the mist liquid spray plate 45 is disposed on the head side plate 29 with the plate surface 45A of the mist liquid spray plate 45 facing the outer surface 29A of the head side plate 29. The mist liquid spray plate 45 is attached to the head side plate 29 with the spray holes 47 facing outward from the head side plate 29 and the plate back surface 45B and the connecting tube portion 46 of the mist liquid spray plate 45 facing into the head tube main body 26.

[0055] 10, the mist liquid sprayer M is connected to the first liquid outflow channel σ1 (inside the liquid outflow pipe 33). The mist liquid sprayer M is connected to the liquid outflow channel σ1 (inside the liquid outflow pipe 33) by fitting the connecting tube portion 46 onto the other pipe end 33B side of the liquid outflow pipe 33. Each spray throttle hole 48 is communicated with the liquid outflow channel σ1 (inside the liquid outflow pipe 33).

[0056] 10, the core guide plate 50 is arranged so that the conical upper surface 51A of each injection guide core 51 faces each injection orifice 48. The core guide plate 50 is arranged on the mist liquid injection plate 45 by inserting each injection guide core 51 into each injection orifice 48 from the first liquid outflow path σ1.

[0057] As shown in Figure 10, each jet guide core 51 is inserted into each jet throttle hole 48 from the first liquid outflow path σ1. Each jet guide core 51 is arranged in each jet throttle hole 48 from the cone top surface 51A with a gap between the cone side surface 51C and the cone inner peripheral surface 48A of each jet throttle hole 48.

[0058] As shown in Figure 10, each injection guide core 51 is installed in each injection orifice 48, forming first and second (multiple) spiral injection flow paths δ1, δ2 between the first and second spiral surfaces 53, 54, the conical side surface 51C, and the conical inner surface 48A of each injection orifice 48.

[0059] As shown in Fig. 10, the first jet flow path δ1 is formed in a spiral shape along the second jet flow path δ2 while decreasing in diameter from the conical bottom plane 51B toward the conical top surface 51A. The second jet flow path δ2 is formed in a spiral shape along the first jet flow path δ1 while decreasing in diameter from the conical bottom plane 51B toward the conical top surface 51A. The first and second jet flow paths δ1, δ2 are connected to the first liquid outflow path σ1 (inside the liquid outflow pipe 33) through each liquid introduction hole 52. The first and second jet flow paths δ1, δ2 are connected to the jet orifice 48 between the jet hole 47 and the conical top surface 51A of the jet guide core 51 inserted into the jet orifice 48.

[0060] As shown in Figures 1, 4, 8 and 10, the second head side plate 30 is a liquid ejector that ejects liquid from the second liquid outlet channel σ2, and has a linear liquid ejector N that ejects liquid from the second liquid outlet channel σ2 in a linear shape.

[0061] The linear liquid-jet body N has a linear liquid-jet plate 55, a connecting cylinder portion 56 (second connecting cylinder portion), and a plurality of nozzle holes 57, as shown in FIGS.

[0062] 11, the connecting tube portion 56 is disposed on the back surface 55B of the linear liquid spray plate 55. The connecting tube portion 56 protrudes from the back surface 55B of the linear liquid spray plate 55 and is fixed to the linear liquid spray plate 55.

[0063] The linear liquid-ejecting body N is disposed on the second head side plate 30 as shown in FIG.

[0064] 11 , the linear liquid spray plate 55 is disposed on the head side plate 30 with the plate surface 55A of the linear liquid spray plate 55 facing the outer surface 30A of the head side plate 30. The linear liquid spray plate 55 is attached to the head side plate 30 with the plate back surface 55B of the linear liquid spray plate 55 and the connecting tube portion 56 facing inside the head tube main body 26.

[0065] The linear liquid jet body N is connected to the second liquid outflow channel σ2 (inside the liquid outflow pipe 34) as shown in Figure 11. The linear liquid jet body N is connected to the liquid outflow channel σ2 (inside the liquid outflow pipe 34) by fitting the connecting tube portion 56 onto the other pipe end 34B side of the liquid outflow pipe 34.

[0066] As shown in FIGS. 8 and 12, the nozzle holes 57 are formed in the linear liquid spray plate 55. The nozzle holes 57 are arranged in multiple rows p1 to p10 in the direction of the cylinder center line b of the head cylinder main body 26. The nozzle holes 57 are arranged in multiple rows p1 to p10 with equal intervals between each nozzle hole 57. The nozzle holes 57 penetrate the linear liquid spray plate 55 and open to the front surface 55A and the back surface 55B of the linear liquid spray plate 55. The nozzle holes 57 open to the back surface 55B of the linear liquid spray plate 55 and communicate with the second liquid outflow path σ2 (inside the liquid outflow pipe 34).

[0067] 12(a), each nozzle hole 57 in the odd-numbered rows p1, p3, p5, p7, and p9 is inclined at an acute angle θ to the back surface 55B of the linear liquid spray plate 55, extending from the back surface 55B of the linear liquid spray plate 55 toward the front surface 55A and one of the head side plates (head side plate 29) adjacent to the head side plate 30. Each nozzle hole 57 in the even-numbered rows p2, p4, p6, p8, and p10 is inclined at an acute angle θ to the back surface 55B of the linear liquid spray plate 55, extending from the back surface 55B of the linear liquid spray plate 55 toward the front surface 55A and the other head side plate (head side plate 31) adjacent to the head side plate 30.

[0068] 10, the third head side plate 31 has a drain body S that drains the liquid from the third liquid outflow channel σ3. The drain body S discharges the liquid that flows in from the liquid outflow channel σ3 to the outside of the head cylinder main body 26.

[0069] As shown in FIGS. 2 and 10, the drain body S has a drain plate 61, a connecting cylindrical portion 62 (third connecting cylindrical portion), and a discharge hole 63.

[0070] 10, the connecting tubular portion 62 is disposed on the rear surface 61B of the drain plate 61. The connecting tubular portion 62 protrudes from the rear surface 61B of the drain plate 61 and is fixed to the drain plate 61.

[0071] 10, the drain body S is disposed on the third head side plate 31. The drain body S is attached to the head side plate 31.

[0072] 10 , the drain plate 61 is disposed on the head side plate 31 with the plate surface 61A of the drain plate 61 facing the outer surface 31A of the head side plate 31. The drain plate 61 is disposed on the head side plate 31 with the plate surface 61A of the drain plate 61 flush with the outer surface 31A of the head side plate 31. The drain plate 61 is attached to the head side plate 31 with the plate back surface 61B of the drain plate 61 and the connecting tube portion 62 facing inside the head tube main body 26.

[0073] 10, the drain body S is connected to the liquid outflow channel σ3 (inside the liquid outflow pipe 35). The drain body S is connected to the liquid outflow channel σ3 (inside the liquid outflow pipe 35) by fitting the connecting cylindrical portion 62 onto the other pipe end 35B side of the liquid outflow pipe 35.

[0074] As shown in FIG. 10, the drain body S closes the end of the liquid outflow channel σ on the head side plate 30 side.

[0075] 10, the discharge holes 63 are formed in the drain plate 61. The discharge holes 63 penetrate the drain plate 61, open to a plate front surface 61A and a plate back surface 61B of the drain plate 61, and communicate with the liquid outflow path σ3 (inside the liquid outflow pipe 35).

[0076] As shown in Figures 2, 5, 9 and 11, the fourth head side plate 32 has a strip-shaped liquid ejector T, which is a liquid ejector that ejects liquid from the fourth liquid outlet channel σ4 in a strip-like manner.

[0077] As shown in FIGS. 2, 5, 7 and 10, the belt-shaped liquid jetting body T has a belt-shaped liquid jetting plate 65, a connecting cylinder part 66 (fourth connecting cylinder part), and a plurality of elongated holes 67.

[0078] The connecting tube portion 66 is disposed on the back surface 65B of the strip-shaped liquid spray plate 65. The connecting tube portion 66 protrudes from the back surface 65B of the strip-shaped liquid spray plate 65 and is fixed to the strip-shaped liquid spray plate 65.

[0079] The strip-shaped liquid jet T is disposed on the fourth head side plate 32 as shown in FIG.

[0080] 2, 9, and 10, the strip-shaped liquid spray plate 65 is disposed on the head side plate 32 with the plate surface 65A of the strip-shaped liquid spray plate 65 facing the outer surface 32A of the head side plate 32. The strip-shaped liquid spray plate 65 is attached to the head side plate 32 with the plate back surface 65B of the strip-shaped liquid spray plate 65 and the connecting tube portion 66 facing into the head tube main body 26.

[0081] 11, the strip-shaped liquid jetting body T is connected to the liquid outflow channel σ4 (inside the liquid outflow pipe 36). The connecting tube portion 66 of the strip-shaped liquid jetting body T is fitted onto the other pipe end 36B side of the liquid outflow pipe 36, and the strip-shaped liquid jetting body T is connected to the liquid outflow channel σ4 (inside the liquid outflow pipe 36).

[0082] 11, the belt-shaped liquid jetting body T is disposed on the head side plate 32, forming a rectifying space Z in the liquid outflow path σ4 (inside the liquid outflow pipe 36) between it and the rectifying plate Y. The belt-shaped liquid jetting body T is disposed on the head side plate 32, forming a rectifying space in the liquid outflow path σ4 (inside the liquid outflow pipe 36) between the belt-shaped liquid jetting plate 65 (plate rear surface 65B) and the rectifying plate Y.

[0083] As shown in Figure 11, the oblong holes 67 are formed in the belt-shaped liquid spray plate 65. The oblong holes 67 are arranged with a gap between them in a direction J perpendicular to the tube center line b of the head tube main body 26. Each oblong hole 67 has a hole length L in the direction B of the tube center line b of the head tube main body 26 and a hole width K in the direction J perpendicular to the tube center line b of the head tube main body 26, and penetrates the head side plate 32, opening on the plate front surface 65A and plate back surface 65B of the belt-shaped liquid spray plate 65. Each oblong hole 67 opens on the plate back surface 65B of the belt-shaped liquid spray plate 65 and communicates with the rectifying space Z (liquid outflow path σ4 / inside the liquid outflow pipe 36).

[0084] In the head body H, any one of the first head side plate 29, the second head side plate 30, and the fourth head side plate 32 is one head side plate. Each head side plate other than the one head side plate is another head side plate different from the one head side plate. The other head side plate is, for example, the third head side plate 31. In the head H, any one of the first liquid outflow channel σ1, the second liquid outflow channel σ2, and the fourth liquid outflow channel σ4 is one liquid outflow channel. Each liquid outflow channel other than the one liquid outflow channel is another liquid outflow channel different from the one liquid outflow channel. The other liquid outflow channel is, for example, the third liquid outflow channel σ3. In the head H, any one of the first liquid outflow pipe 33, the second liquid outflow pipe 34, and the fourth liquid outflow pipe 36 is one liquid outflow pipe. The liquid outflow pipe other than the first liquid outflow pipe is another liquid outflow pipe different from the first liquid outflow pipe. The other liquid outflow pipe is, for example, the third liquid outflow pipe 35.

[0085] The flow path switching body V is disposed between the grip cylinder body 1 and the head cylinder body 26. As shown in Figures 10, 11, 14, and 15, the flow path switching body V has a valve body F, a valve seat U, and a valve spring 71.

[0086] As shown in FIGS. 14 and 15, the valve seat U has a cylindrical valve seat portion 72 formed in a cylindrical shape, a valve seat plate 73, and a valve seat hole 74.

[0087] 15 , the valve seat plate 73 is formed in a circular shape (a circular plate). The valve seat plate 73 is disposed concentrically with the cylindrical valve seat portion 72. The back surface 73B of the valve seat plate 73 abuts against one cylindrical end 72A of the cylindrical valve seat portion 72, thereby closing the one cylindrical end 72A of the cylindrical valve seat portion 72.

[0088] 14, the valve seat hole 74 is formed in the valve seat plate 73. The valve seat hole 74 is disposed between the plate center line ε and the outer peripheral surface of the valve seat plate 73. The valve seat hole 74 is disposed on a circle Cp of radius r whose center is the plate center line ε of the valve seat plate 73. The valve seat hole 74 penetrates the valve seat plate 73 and opens to a plate front surface 73A and a plate back surface 73B of the valve seat plate 73.

[0089] 15, the valve spring 71 is a coil spring, and is disposed within the large diameter cylindrical portion 22 of the holder cylindrical main body 16. The valve spring 71 is disposed within the large diameter cylindrical portion 22 with one spring end of the valve spring 71 abutting against the step portion 24.

[0090] 15, the valve seat U is arranged concentrically with the holder cylindrical body 16, and is arranged inside the large-diameter cylindrical portion 22 of the holder cylindrical body 16. The valve seat U is arranged in the valve seat holder 4 with the back surface 73B of the valve seat plate 73 facing the large-diameter cylindrical portion 22 (step portion 24). The valve seat U is arranged in the valve seat holder 4 with the other spring end of the valve spring 71 abutting against the back surface 73B of the valve seat plate 73. The valve seat hole 74 is connected to the liquid flow path α.

[0091] As shown in Figure 14, the valve seat U is arranged inside the large diameter cylindrical portion 22 with the valve seat hole 74 facing one of the grip side plates 6 of the grip cylinder main body 1. The valve seat hole 74 is arranged between the plate center line ε of the valve seat plate 73 and one of the grip side plates 6. The valve seat U is arranged in the valve seat holder 4 so as not to be rotatable with respect to the holder cylinder main body 16 (large diameter cylindrical portion 22). The valve seat U is arranged in the valve seat holder 4 so as to be movable in the direction A of the cylinder center line a of the grip cylinder main body 1.

[0092] 1 to 7 and 10, the head body H is supported by the grip body G (grip cylinder body 1) with the other cylinder end 26B of the head cylinder body 26 facing the other cylinder end 1B of the grip cylinder body 1. The head body H is supported by the grip body G with the head cylinder body 26 arranged concentrically with the grip cylinder body 1. The grip body G is arranged rotatably relative to the grip body G (grip cylinder body 1) around the cylinder center line a of the grip cylinder body 1.

[0093] As shown in FIG. 10 , the head body H is arranged by inserting the support tube body 28 into the grip tube body 1 from the other tube end 1B of the grip tube body 1. The head body H is arranged by externally fitting the support tube body 28 onto the large-diameter tube portion 22 of the valve seat holder 4. The inner peripheral surface of the support tube body 28 slidably contacts the outer peripheral surface of the large-diameter tube portion 22 of the valve seat holder 4, and the head body H is rotatably supported by the large-diameter tube portion 22. The support tube body 28 is inserted between the outer peripheral surface of the large-diameter tube portion 22 of the valve seat holder 4 and the inner surfaces of each of the grip side plates 6 to 9. The support tube body 28 is inserted into the grip tube body 1 with a gap between it and the inner surfaces of the grip side plates 6 to 9, and is rotatably supported by the large-diameter tube portion 22. The head body H is rotatably supported by the large diameter cylindrical portion 22 within the grip cylindrical body 1 with the claw portion P of the support cylindrical body 28 inserted between the step portion 23 and one cylindrical end 11A of the connecting cylindrical portion 11.

[0094] 10, as the support cylinder body 28 is inserted into the grip cylinder body 1, the head body H compresses the valve spring 71, and the other cylinder ends 38B-41B of the valve body cylindrical portions 38-41 abut against the plate surface 73A of the valve seat plate 73, and is supported by the large-diameter cylinder portion 22. The valve body cylindrical portions 38-41 are rotatable relative to the valve seat plate 73 and abut against the plate surface 73A of the valve seat plate 73. When the valve spring 71 is compressed, the spring force presses the valve seat plate 73 (plate surface 73A) against the other cylinder ends 38B-41B of the valve body cylindrical portions 38-41.

[0095] The head body H is rotatably supported relative to the grip body G (grip cylinder body 1) around the cylinder center line b of the head cylinder body 26 (cylinder center line a of the grip cylinder body 1) by rotatably supporting the support cylinder body 28 on the large diameter cylinder portion 22. The head body H does not come out of the grip cylinder body 1 by abutting the claw portion P of the support cylinder body 28 against the step portion 23.

[0096] Each of the head side plates 29 to 32 is positioned on one of the grip side plates 6 of the grip cylinder main body 1 by rotation of the head body H relative to the grip body G.

[0097] In the showerhead X, as shown in Figures 1, 3, and 6, the liquid (water) flows into the liquid flow path α from one tube end 1A of the grip cylindrical body 1. In the grip body G, the liquid flows into the liquid flow path α from the other tube end 3B of the liquid inlet tube 3.

[0098] In the shower head X, as shown in Figures 1, 5, and 10, the grip cylinder body 1 is grasped and the head body H is rotated relative to the grip body G (grip cylinder body 1) to position the first head side plate 29 on one of the grip side plates 6 of the grip cylinder body 1. The first head side plate 29 is positioned flush with one of the grip side plates 6 of the grip cylinder body 1. In the grip cylinder body 1, one of the grip side plates 6 becomes a switching side plate (switching position), which is one of the grip side plates.

[0099] Each of the valve body cylindrical portions 38 to 41 is rotated while the other cylindrical end 38B to 41B is in sliding contact with the plate surface 73A of the valve seat plate 73.

[0100] 10, when the head side plate 29 is positioned on the grip side plate 6, the valve body cylindrical portion 38 communicates from the other cylindrical end 38B to the valve seat hole 74. When the head side plate 29 is positioned on the grip side plate 6, as shown in FIGS. 10 and 11, each of the valve body cylindrical portions 39 to 41 is closed by the valve seat plate 73.

[0101] As shown in Figure 10, the first liquid outflow path σ1 (inside the liquid outflow pipe 33) is connected to the liquid flow path α when the head side plate 29 is positioned on the grip side plate 6. The first liquid outflow path σ1 is connected to the liquid flow path α through the liquid inflow path λ1 (inside the valve body cylindrical portion 38) and the valve seat hole 74. As shown in Figures 10 and 11, the liquid outflow paths σ2 to σ4 are blocked from the liquid flow path α when the head side plate 29 is positioned on the grip side plate 6. The third liquid inflow path λ3 is blocked from the liquid flow path α when the head side plate 29 is positioned on the grip side plate 6.

[0102] 10 and 11, when the head side plate 29 is positioned on the grip side plate 6, the mist liquid sprayer M is connected to the liquid flow path α. The mist liquid sprayer M is connected to the liquid flow path α through the first liquid outflow path σ1 (inside the liquid outflow pipe 33), the liquid inflow path λ1 (inside the valve body cylindrical portion 39), and the valve seat hole 74. When the head side plate 29 is positioned on the grip side plate 6, the linear liquid sprayer N (each nozzle hole 57), the strip-shaped liquid sprayer T (each elongated hole 67), and the drain body S are blocked from the liquid flow path α.

[0103] 10, when the head side plate 29 is positioned on the grip side plate 6, the liquid that has flowed into the liquid flow path α flows through the valve seat hole 74 and the liquid inflow path λ1, and is then discharged into the first liquid outflow path σ1 (inside the liquid outflow pipe 33). The liquid that has flowed into the liquid outflow path σ1 flows into each of the injection throttle holes 48 (mist liquid ejectors M). The liquid that has flowed into each of the injection throttle holes 48 flows through the first and second injection flow paths δ1 and δ2.

[0104] 10, the liquid flowing through the first and second injection flow paths δ1, δ2 flows in a spiral shape along the first and second spiral surfaces 53, 54 from the conical bottom plane 51B of the injection guide core 51 toward the conical top surface 51A, and is injected into each injection orifice 48 between the plate surface 45A of the mist liquid injection plate 45 and the conical top surface 51A of the injection guide core 51. The liquid injected into each injection orifice 48 is then injected into each injection hole 47. The first and second injection flow paths δ1, δ2 inject the liquid into each injection orifice 48 between the plate surface 45A of the mist liquid injection plate 45 and the conical top surface 51A of the injection guide core 51, forming a vortex flow (spiral flow) in each injection orifice 48.

[0105] The gas (air) in the liquid (water) flowing through the first and second injection flow paths δ1 and δ2, each injection orifice 48, and each injection hole 47 is pulverized (sheared) by the spiral flow (turbulence) and becomes a bubble liquid (bubble liquid containing air bubbles) in which a large number of fine bubbles and a large number of ultrafine bubbles are mixed and dissolved.

[0106] The bubble liquid (bubble water) containing a large number of fine bubbles and ultra-fine bubbles mixed in and dissolved therein is sprayed from each spray orifice 48 to each spray hole 47. The bubble liquid (bubble water) flowing through each spray hole 47 is converted into droplets (water droplets) containing a large number of fine bubbles and ultra-fine bubbles mixed in and dissolved therein, as shown in Figure 10, and sprayed as a mist from each spray hole 47. Each spray hole 47 sprays a large number of droplets containing a large number of fine bubbles and ultra-fine bubbles mixed in and dissolved therein in a mist. The mist liquid sprayer M converts the liquid from the liquid outflow channel σ1 (liquid outflow pipe 33) into a large number of droplets (water droplets), and sprays these droplets.

[0107] 23 and 24, in the shower head X, the grip cylinder body 1 is grasped and the head body H is rotated relative to the grip body G (grip cylinder body 1) to position the second head side plate 30 on one of the grip side plates 6 of the grip cylinder body 1. The second head side plate 30 is positioned flush with one of the grip side plates 6 of the grip cylinder body 1.

[0108] 24(a), when the head side plate 30 is positioned on the grip side plate 6, the valve body cylindrical portion 39 communicates from the other cylindrical end 39B to the valve seat hole 74. When the head side plate 30 is positioned on the grip side plate 6, each of the valve body cylindrical portions 38, 40, 41 is closed by the valve seat plate 73.

[0109] As shown in FIG. 24(a), the second liquid outflow path σ2 (inside the liquid outflow pipe 34) is connected to the liquid flow path α when the head side plate 30 is positioned on the grip side plate 6. The second liquid outflow path σ2 is connected to the liquid flow path α through the liquid inflow path λ2 (inside the valve body cylindrical portion 39) and the valve seat hole 74. As shown in FIG. 24, the liquid outflow paths σ1, σ3, and σ4 are blocked from the liquid flow path α when the head side plate 30 is positioned on the grip side plate 6. The third liquid inflow path λ3 is blocked from the liquid flow path α when the head side plate 30 is positioned on the grip side plate 6.

[0110] As shown in Figure 24(a), when the head side plate 30 is positioned on the grip side plate 6, the linear liquid jet N is connected to the liquid flow path α. The linear liquid jet N is connected to the liquid flow path α through the second liquid outflow path σ2 (inside the liquid outflow pipe 34), the liquid inflow path λ2 (inside the valve body cylindrical portion 39), and the valve seat hole 74. When the head side plate 30 is positioned on the grip side plate 6, as shown in Figure 24, the mist liquid jet M, the band-shaped liquid jet T, and the drain body S are blocked from the liquid flow path α.

[0111] 24(a), when the head side plate 30 is positioned on the grip side plate 6, the liquid that has flowed into the liquid flow path α flows through the valve seat hole 74 and the liquid inflow path λ2, and is discharged into the second liquid outflow path σ2 (inside the liquid outflow pipe 34). The liquid that has flowed into the liquid outflow path σ2 flows into each nozzle hole (linear liquid-jet body N).

[0112] The liquid flowing into each nozzle hole 57 flows through each nozzle hole 57 and is sprayed linearly from each nozzle hole 57. Each nozzle hole 57 (linear liquid-jet body N) sprays the liquid from the liquid outflow path σ2 (inside the liquid outflow pipe 34) linearly.

[0113] 8 and 12, each of the nozzle holes 57 in the odd-numbered rows p1, p3, p5, p7, and p9 sprays linear liquid toward one of the head side plates (head side plate 29) adjacent to the head side plate 30, at an acute angle θ to the back surface 55B of the linear liquid spray plate 55. Each of the nozzle holes 57 in the even-numbered rows p2, p4, p6, p8, and p10 sprays linear liquid toward the other head side plate (head side plate 31) adjacent to the head side plate 30, at an acute angle θ to the back surface 55B of the linear liquid spray plate 55.

[0114] 25 and 26, in the shower head X, the grip tube body 1 is grasped, and the head body H is rotated relative to the grip body G, so that the third head side plate 31 is positioned on one of the grip side plates 6 of the grip tube body 1. The head side plate 31 is positioned flush with the grip side plate 6.

[0115] 26(a), when the head side plate 31 is positioned on the grip side plate 6, the valve body cylindrical portion 40 communicates from the other cylindrical end 40B to the valve seat hole 74. When the head side plate 31 is positioned on the grip side plate 6, as shown in FIG. 26, each of the valve body cylindrical portions 38, 39, 41 is closed by the valve seat plate 73.

[0116] As shown in FIG. 26(a), the third liquid outflow path σ3 (inside the liquid outflow pipe 35) is connected to the liquid flow path α when the head side plate 31 is positioned on the grip side plate 6. The liquid outflow path σ3 is connected to the liquid flow path α through the liquid inflow path λ3 (inside the valve body cylindrical portion 40) and the valve seat hole 74. As shown in FIG. 26, the liquid outflow paths σ1, σ2, and σ4 are blocked from the liquid flow path α when the head side plate 31 is positioned on the grip side plate 6. The third liquid inflow path λ3 is connected to the liquid flow path α when the head side plate 31 is positioned on the grip side plate 6.

[0117] As shown in Figure 26(a), the drain body S is connected to the liquid flow path α when the head side plate 31 is positioned on the grip side plate 6. The drain body S is connected to the liquid flow path α through the liquid outflow path σ3 (inside the liquid outflow pipe 35), the liquid inflow path λ3 (inside the valve body cylindrical portion 40), and the valve seat hole 74. The mist liquid spray body M, the linear liquid spray body N, and the band-shaped liquid spray body T are blocked from the liquid flow path α when the head side plate 31 is positioned on the grip side plate 6, as shown in Figure 26.

[0118] When the head side plate 31 is positioned on the grip side plate 6, the liquid that has flowed into the liquid flow path α flows through the valve seat hole 74 and the liquid inflow path λ3, and is sprayed into the liquid outflow path σ3. The liquid inflow path λ3 sprays the liquid that has flowed into the liquid flow path α from the spray nozzle φ into the liquid outflow path σ3 (inside the liquid outflow pipe 35) in the form of a mist.

[0119] The liquid sprayed into the liquid outflow path σ3 is discharged to the outside of the head cylinder main body 26 through the discharge hole 63. The discharge hole 63 (drain body S) discharges the liquid from the liquid outflow path σ3 (inside the liquid outflow pipe 35) to the outside of the head cylinder main body 26.

[0120] By injecting the liquid from the liquid inflow path λ3 into the liquid outflow path σ3 while discharging it from the discharge hole 63, it is possible to prevent the pressure in the liquid outflow path σ3 (inside the liquid outflow pipe 35) from increasing, and to prevent water hammering from occurring in the third liquid outflow path σ3 (inside the liquid outflow pipe 35). This makes it possible to prevent damage to the head body H, the liquid outflow pipe 35 (liquid outflow path σ3), etc., and to prevent the drain body S from coming off the head side plate 31.

[0121] 27 and 28, in the shower head X, the grip tube body 1 is grasped, and the head body H is rotated relative to the grip body G, so that the fourth head side plate 32 is positioned on one of the grip side plates 6 of the grip tube body 1. The fourth head side plate 32 is positioned flush with the grip side plate 6.

[0122] As shown in Figure 28(a), when the head side plate 32 is positioned on the grip side plate 6, the valve body cylindrical portion 41 communicates from the other cylindrical end 41B to the valve seat hole 74. When the head side plate 32 is positioned on the grip side plate 6, each of the valve body cylindrical portions 38 to 40 is closed by the valve seat plate 73 as shown in Figure 28.

[0123] As shown in FIG. 28(a), the fourth liquid outflow path σ4 (inside the liquid outflow pipe 36) is connected to the liquid flow path α when the head side plate 32 is positioned on the grip side plate 6. The liquid outflow path σ4 is connected to the liquid flow path α through the liquid inflow path λ4 (inside the valve body cylindrical portion 41) and the valve seat hole 74. As shown in FIG. 28, the liquid outflow paths σ1, σ2, and σ3 are blocked from the liquid flow path α when the head side plate 32 is positioned on the grip side plate 6. The third liquid inflow path λ3 is blocked from the liquid flow path α when the head side plate 32 is positioned on the grip side plate 6.

[0124] As shown in Figure 28(a), the strip-shaped liquid jet T is connected to the liquid flow path α when the head side plate 32 is positioned on the grip side plate 6. The strip-shaped liquid jet T is connected to the liquid flow path α through the liquid inflow path λ3 (inside the valve body cylindrical portion 41) and the valve seat hole 74. As shown in Figure 28, the mist liquid jet M, linear liquid jet N, and drain body S are blocked from the liquid flow path α when the head side plate 32 is positioned on the grip side plate 6.

[0125] 28(a), when the head side plate 32 is positioned on the grip side plate 6, the liquid that has flowed into the liquid flow path α flows through the valve seat hole 74 and the liquid inflow path λ4 (inside the valve body cylindrical portion 41) and is then discharged into the fourth liquid outflow path σ4 (inside the liquid outflow pipe 36). The liquid that has been discharged into the liquid outflow path σ4 flows into each of the rectifying holes 43 of the rectifying plate Y and is sprayed from each of the rectifying holes 43 into the rectifying space Z. Due to their conical shape, each of the rectifying holes 43 sprays the liquid throughout the rectifying space Z, causing the liquid to flow toward each of the elongated holes 67.

[0126] The liquid sprayed into the rectifying space Z of the liquid outflow channel σ4 flows into each of the elongated holes 67 (strip-shaped liquid spray bodies T), as shown in Figure 28(a). The liquid that flows into each of the elongated holes 67 is sprayed in a strip from each of the elongated holes 67. Each of the elongated holes 67 (strip-shaped liquid spray bodies T) sprays the liquid from the liquid outflow channel σ4 in a strip.

[0127] In the shower head X, liquid can be sprayed from each of the liquid-spewing bodies M, N, and T by rotating the head body H relative to the grip body G and positioning each of the head side plates 29, 30, and 32 on one of the grip side plates 6 of the grip cylinder main body 1. In the shower head X, liquid spraying from each of the liquid-spewing bodies M, N, and T can be stopped by rotating the head body H relative to the grip body G and positioning the third head side plate 31 on the grip side plate 6. In the shower head X, the head body H can be rotated relative to the grip body H, and each of the head side plates 29, 30, and 32 can be positioned on one of the grip side plates 6, allowing the spray form to be switched between mist, line, and band.

[0128] In the showerhead X, one head side plate has a first liquid jetting body, which is connected to one liquid outlet channel and jets the liquid from that channel, and the other head side plate has a second liquid jetting body, which is connected to the other liquid outlet channel and jets the liquid from that channel in a different jet pattern from the first liquid jetting body. The first liquid jetting body is disposed on one head side plate, and the second liquid jetting body is disposed on the other head side plate. The first liquid jetting body can be a mist liquid jetting body that jets the liquid from the one liquid outlet channel in a mist, and the second liquid jetting body can be a linear liquid jetting body that jets the liquid from the other liquid outlet channel in a linear pattern, or a band-shaped liquid jetting body that jets the liquid from the other liquid outlet channel in a band-shaped pattern. The first liquid jetting body can be a linear liquid jetting body that jets liquid in a line from one liquid outlet channel, and the second liquid jetting body can be a strip-shaped liquid jetting body that jets liquid in a strip from another liquid outlet channel. [Industrial Applicability]

[0129] The present invention is ideal for showerheads. [Explanation of symbols]

[0130] X shower head G Grip body H head body M mist liquid sprayer N Linear liquid jet T Strip-shaped liquid jet S Drain Body 1 Grip tube body 26 Head tube body α Liquid flow path σ1~σ4 Liquid outflow path

Claims

1. a grip body having a grip tube main body formed in a polygonal cylindrical shape, a liquid flow path formed in the grip tube main body, and liquid flowing into the liquid flow path from one cylindrical end of the grip tube main body; a head body having a cylindrical head body formed in a polygonal cylindrical shape and a plurality of liquid outflow channels formed in the cylindrical head body, The head body is The other cylindrical end of the head cylindrical body is supported by the grip cylindrical body so as to face the other cylindrical end of the grip cylindrical body, The grip tube body is rotatably disposed about a center line of the grip tube body with respect to the grip body, Each head side plate of the head cylinder body is The head body is rotated relative to the grip body to be positioned on one of the grip side plates of the grip cylinder body, One head side plate of the head cylinder main body has a liquid ejection body, The liquid jet body is connected to one liquid outlet channel and injecting liquid from the one liquid outlet channel; the other head side plate of the head cylinder main body has a drain body, The drain body is connected to another liquid outlet channel and discharging liquid from the other liquid outlet channel; The one liquid outflow path is When the other head side plate is positioned on the one grip side plate, it is blocked from the liquid flow path, When the one head side plate is positioned on the one grip side plate, the head side plate is connected to the liquid flow path, The other liquid outflow path is When the one head side plate is positioned on the one grip side plate, it is blocked from the liquid flow path, When the other head side plate is positioned on the one grip side plate, the other head side plate is connected to the liquid flow path. A shower head characterized by:

2. The grip body is A grip tube body formed in a rectangular cylindrical shape, The head body is a head tube main body formed in a rectangular cylindrical shape; and first to fourth liquid outflow paths formed in the head tube main body, The first to fourth head side plates of the head cylinder main body are: The head body is positioned on one of the grip side plates by rotating with respect to the grip body, the first head side plate has a mist liquid ejector, The mist liquid jetting body is a nozzle connected to the first liquid outlet channel and configured to spray the liquid from the first liquid outlet channel in the form of a mist; the second head side plate has a linear liquid jet; The linear liquid jet is a nozzle connected to the second liquid outlet channel, for linearly ejecting liquid from the second liquid outlet channel; the third head side plate has a drain body; The drain body is a third liquid outlet connected to the third liquid outlet and configured to discharge liquid from the third liquid outlet; the fourth head side plate has a strip-shaped liquid jet; The strip-shaped liquid jet body is a nozzle connected to the fourth liquid outlet channel, for spraying the liquid from the fourth liquid outlet channel in a strip shape; The first liquid outlet channel includes: When the second head side plate, the third head side plate, or the fourth head side plate is positioned on one of the grip side plates, the second head side plate, the third head side plate, or the fourth head side plate is blocked from the liquid flow path, When the first head side plate is positioned on the one grip side plate, the first head side plate is connected to the liquid flow path, The second liquid outlet path is When the first head side plate, the third head side plate, or the fourth head side plate is positioned on one of the grip side plates, the first head side plate, the third head side plate, or the fourth head side plate is blocked from the liquid flow path, When the second head side plate is positioned on the first grip side plate, the second head side plate is connected to the liquid flow path, The third liquid outlet path is When the first head side plate, the second head side plate, or the fourth head side plate is positioned on one of the grip side plates, the first head side plate, the second head side plate, or the fourth head side plate is blocked from the liquid flow path, When the third head side plate is positioned on the first grip side plate, the third head side plate is connected to the liquid flow path, The fourth liquid outflow path is When the first head side plate, the second head side plate, or the third head side plate is positioned on one of the grip side plates, the first head side plate, the second head side plate, or the third head side plate is blocked from the liquid flow path, When the fourth head side plate is positioned on the first grip side plate, the fourth head side plate is connected to the liquid outflow path. The showerhead of claim 1 .

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