JPWO2019150798A1 - Shower device - Google Patents

Abstract

Provided is a shower device capable of making the film thickness of the water film more uniform and increasing the length of the water film. The shower device according to the present invention is a casing connected to a shower head main body and an annular member arranged inside the casing, and water supplied between the inner peripheral surface of the casing and the outer peripheral surface of the annular member. An annular member that forms a water discharge flow path that discharges water as a water film, and a sprinkling member that is arranged inside the annular member and discharges the supplied water as a shower-like water stream, and is provided with an inner peripheral surface of the casing and an annular member. The outer peripheral surface of the water discharge channel has a tapered portion that is inclined or curved so that the diameter of the water discharge channel increases toward the spout, and is at least in a preset section on the upstream side in the water discharge direction from the spout. The width dimension of is uniformly configured over the entire circumference.

Description

The present invention relates to a shower device capable of forming an annular water film around shower water discharged as a shower-like water flow from a plurality of watering holes.

Conventionally, in a shower device used in a kitchen, a washroom, etc., so-called "water splashing" may occur in which shower water spouts hit a tableware, a sink, or the like and scatters to unintentionally wet the surroundings. In order to suppress this water splash, a device that forms an annular water film around the shower water discharge is known. According to this device, it is possible to suppress the occurrence of water splashing on the outside of the water film by absorbing the water scattered on the tableware, the sink, or the like by the water film.

However, in the above-mentioned device, there is a problem that the diameter of the water film becomes smaller due to surface tension as the distance from the water discharge port of the water film increases, and the water film and the shower water discharge merge. That is, there is a problem that the length of the water film from the spout is short and the water splash cannot be sufficiently suppressed.

In order to solve this problem, in Patent Document 1, a water discharge channel connected to a water discharge port is formed in a tapered shape to discharge a water film in a direction away from shower water discharge, and a protrusion is formed on a part of an annular water discharge port. A configuration is disclosed in which a portion is provided so as to divide a part of the water film. According to this configuration, the surface tension can be suppressed at the divided portion, and the length of the water film can be made longer.

Japanese Patent No. 5168708

However, in the shower device of Patent Document 1, since a part of the water film is divided, the divided portion cannot suppress water splashing and the thickness of the water film becomes non-uniform. Therefore, in the conventional shower device, there is still room for improvement from the viewpoint of making the film thickness of the water film more uniform and increasing the length of the water film.

An object of the present invention is to solve the above problems, and to provide a shower device capable of increasing the length of the water film and making the film thickness of the water film more uniform.

In order to achieve the above object, the shower device according to the present invention includes a shower head main body and
A water discharge unit attached to the tip of the shower head body and
It is a shower device equipped with
The water discharge unit
With the casing connected to the shower head body,
An annular member arranged inside the casing, which is a water discharge flow path that discharges water supplied through the shower head main body as a water film between the inner peripheral surface of the casing and the outer peripheral surface of the annular member. An annular member configured to form and
A sprinkling member arranged inside the annular member and discharging water supplied through the shower head body as a shower-like water stream.
With
The inner peripheral surface of the casing and the outer peripheral surface of the annular member have tapered portions that are inclined or curved so that the diameter of the water discharge channel increases toward the water discharge port, and at least in the water discharge direction from the water discharge port. The width dimension of the water discharge flow path is configured to be uniform over the entire circumference in a preset section on the upstream side.

According to the shower device according to the present invention, the film thickness of the water film can be made more uniform and the length of the water film can be made longer.

It is a side view of the shower apparatus which concerns on embodiment of this invention. It is a perspective view of the water discharge unit included in the shower apparatus of FIG. It is a perspective view of the water discharge unit of FIG. 2 seen from diagonally below. It is an exploded perspective view of the water discharge unit of FIG. 2 seen from diagonally above. It is an exploded perspective view of the water discharge unit of FIG. 2 seen from diagonally below. It is a bottom view of the water discharge unit of FIG. FIG. 6 is a cross-sectional view taken along the line A1-A1 of FIG. It is a partially enlarged sectional view of the water discharge unit of FIG. It is a figure which shows the shape example of the spacer provided in the water discharge flow path. It is a figure which shows the shape example of the spacer provided in the water discharge flow path. It is a figure which shows the shape example of the spacer provided in the water discharge flow path. It is a figure which shows the shape example of the spacer provided in the water discharge flow path.

(Knowledge that became the basis of the present invention)
The present inventors have obtained the following findings as a result of diligent studies in order to make the length of the water film longer, to make the film thickness more uniform, and to make the length of the water film longer. It was.

In order to make the film thickness of the water film uniform, it is considered preferable to configure the water film so as to discharge water without dividing a part of the water film. Shower devices configured to discharge an annular water film have traditionally existed. However, in the conventional shower device, as described above, there is a problem that the water film and the shower water spout merge due to the surface tension of the water film, and the length of the water film from the spout is short.

On the other hand, the present inventors have stated that the reason why the length of the water film is shortened in the conventional shower device is that the width dimension of the water discharge channel near the water discharge port is not uniform. I got a lot of knowledge. That is, in the conventional shower device, the casing forming the water discharge flow path and the annular member have an assembled structure, and a play is provided in the connecting portion (for example, the screwed portion) in order to facilitate the assembly. Due to this play, the central axes of the casing and the annular member are displaced, and a portion where the casing and the annular member are close to each other is generated, and a portion where the casing and the annular member are separated from each other is generated on the opposite side. For example, when the average width dimension of the water discharge channel is 0.3 mm and the deviation of the central axis between the casing and the annular member is 0.1 mm in the vicinity of the spout, the minimum width dimension of the water discharge channel is 0.2 mm. Therefore, the maximum width of the water discharge channel is 0.4 mm. In this case, the water film discharged from the spout has a thick portion and a thin portion. Since the surface tension also changes depending on the film thickness, if the film thickness is uneven, the balance of the surface tension is lost and the water film does not spread uniformly, resulting in unevenness. As a result, the length of the water film from the spout is shortened.

Therefore, as a result of diligent studies, the present inventors have found a configuration in which the water discharge channel near the spout is expanded in a tapered shape and the width dimension of the water discharge channel is uniform over the entire circumference. According to this configuration, the film thickness of the water film can be made more uniform, and the length of the water film can be increased to a desired level. Based on these novel findings, the present inventors have arrived at the following inventions.

According to the first aspect of the present invention, the shower head main body and
A water discharge unit attached to the tip of the shower head body and
It is a shower device equipped with
The water discharge unit
With the casing connected to the shower head body,
An annular member arranged inside the casing, which is a water discharge flow path that discharges water supplied through the shower head main body as a water film between the inner peripheral surface of the casing and the outer peripheral surface of the annular member. An annular member configured to form and
A sprinkling member arranged inside the annular member and discharging water supplied through the shower head body as a shower-like water stream.
With
The inner peripheral surface of the casing and the outer peripheral surface of the annular member have tapered portions that are inclined or curved so that the diameter of the water discharge channel increases toward the water discharge port, and at least in the water discharge direction from the water discharge port. Provided is a shower device configured so that the width dimension of the water discharge flow path is uniform over the entire circumference in a preset section on the upstream side.

According to the second aspect of the present invention, the shower device according to the first aspect is provided, wherein the preset section is a section having a length of half or more of the tapered portion.

According to the third aspect of the present invention, the watering member and the casing are detachably attached to each other in an inlay structure on the upstream side of the annular member in the water discharge direction, according to the first or second aspect. The shower device described is provided.

According to the fourth aspect of the present invention, the watering member has a shower water spouting portion provided with a plurality of watering holes.
The outer peripheral portion of the shower water discharge portion is connected to the inner peripheral portion of the annular member.
The shower device according to any one of the first to third aspects, wherein the inner peripheral portion of the annular member is configured to expose the surface of the shower water discharge portion on the upstream side in the water discharge direction. ..

According to a fifth aspect of the present invention, there is provided the shower device according to the fourth aspect, wherein the outer peripheral portion of the shower water discharge portion and the inner peripheral portion of the annular member are detachably attached to each other in an in-row structure. To do.

According to the sixth aspect of the present invention, the shower device according to any one of the first to third aspects, wherein the watering member and the annular member are integrally configured.

According to the seventh aspect of the present invention, between the inner peripheral surface of the casing and the outer peripheral surface of the annular member, the water discharge flow path is located on the upstream side of the preset section in the water discharge direction. The shower device according to any one of the first to sixth aspects, wherein at least three spacers are provided at equal intervals or substantially equal intervals in order to maintain the width dimension.

According to the eighth aspect of the present invention, the shower device according to the seventh aspect, wherein the upstream end and the downstream end of the spacer in the water discharge direction have a width dimension shorter than the intermediate portion thereof. provide.

According to the ninth aspect of the present invention, the inner peripheral surface of the casing and the outer peripheral surface of the annular member each have a straight portion connected to the tapered portion on the upstream side in the water discharge direction, and between the straight portions. The shower apparatus according to the 7th or 8th aspect is provided with the above-mentioned at least 3 spacers.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments.

<< Embodiment >>
FIG. 1 is a side view of the shower device according to the embodiment of the present invention. The shower device according to the present embodiment is a device used in a kitchen, a washroom, or the like.

As shown in FIG. 1, the shower device 1 according to the present embodiment includes a shower head main body 2 and a water discharge unit 3 attached to a tip portion 2A of the shower head main body 2.

Inside the shower head main body 2, a water supply flow path (not shown) for supplying water (including hot water) to the water discharge unit 3 is provided. The water discharge unit 3 is configured to discharge water supplied through the water supply flow path of the shower head main body 2 toward, for example, the bottom surface of the sink.

FIG. 2 is a perspective view of the water discharge unit 3 viewed from diagonally above. FIG. 3 is a perspective view of the water discharge unit 3 viewed from diagonally below. FIG. 4 is an exploded perspective view of the water discharge unit 3 viewed from diagonally above. FIG. 5 is an exploded perspective view of the water discharge unit 3 as viewed from diagonally below. FIG. 6 is a bottom view of the water discharge unit 3. FIG. 7 is a cross-sectional view taken along the line A1-A1 of FIG.

The water discharge unit 3 includes a casing 4, an annular member 5 arranged inside the casing 4, and a water sprinkling member 6 arranged inside the annular member 5.

As shown in FIG. 2, the casing 4 is a member that constitutes the outer shell of the water discharge unit 3. In the present embodiment, the casing 4 has a small-diameter cylindrical portion 41, a large-diameter cylindrical portion 42, and a disk portion 43.

The small-diameter cylindrical portion 41 is detachably attached to the tip portion 2A of the shower head main body 2. The large-diameter cylindrical portion 42 has a larger diameter than the small-diameter cylindrical portion 41, and is arranged coaxially with the small-diameter cylindrical portion 41. The disk portion 43 is connected to the lower end portion of the small diameter cylindrical portion 41 and the upper end portion of the large diameter cylindrical portion 42. The disk portion 43 is provided with a center hole 43A and a plurality of water supply holes 43B around the center hole 43A in a region surrounded by the small-diameter cylindrical portion 41 in a plan view. The center hole 43A is a perfect circular hole, and as shown in FIG. 7, the center hole 43A is provided so that the center is located on the central axis C1 of the small-diameter cylindrical portion 41 and the large-diameter cylindrical portion 42. The water supply hole 43B has a diameter smaller than that of the center hole 43A, and is provided so as to communicate with the water supply flow path of the shower head main body 2.

The annular member 5 is arranged inside the large-diameter cylindrical portion 42. An annular water discharge flow path F1 that discharges water supplied through the shower head main body 2 as a water film is formed between the inner peripheral surface 42A of the large-diameter cylindrical portion 42 and the outer peripheral surface 5A of the annular member 5. .. In the present embodiment, the inner peripheral surface 42A of the large-diameter cylindrical portion 42 and the outer peripheral surface 5A of the annular member 5 are each formed in a perfect circular shape in a plan view.

Further, the inner peripheral surface 42A of the large-diameter cylindrical portion 42 and the outer peripheral surface 5A of the annular member 5 have tapered portions 42Aa and 5Aa that are inclined so that the diameter of the water discharge flow path F1 increases toward the water discharge port S1. ing. The tapered portions 42Aa and 5Aa are configured so that the width dimension of the water discharge flow path F1 is uniform over the entire circumference at least in a preset section on the upstream side of the water discharge direction D1 from the water discharge port S1.

Here, the "width dimension" means a dimension in a direction orthogonal to the central axis C1 shown in FIG. The "width dimension" is, for example, 0.3 mm to 0.5 mm. Further, the "preset section" is, for example, a section having a length of half or more of the tapered portions 42Aa and 5Aa. In the present embodiment, the "preset section" is a section having the entire length of the tapered portions 42Aa and 5Aa. The lengths of the tapered portions 42Aa and 5Aa are, for example, 6 mm to 7 mm. Further, the inclination angles of the tapered portions 42Aa and 5Aa with respect to the central axis C1 are, for example, 15 degrees to 40 degrees. In the present embodiment, the inclination angles of the tapered portions 42Aa and 5Aa with respect to the central axis C1 are set within the range of 25 degrees to 35 degrees. Further, "uniformity" is not limited to being completely uniform, but allows a slight manufacturing tolerance or the like (for example, a level of less than 0.1 mm).

Further, the inner peripheral surface 42A of the large-diameter cylindrical portion 42 and the outer peripheral surface 5A of the annular member 5 have straight portions 42Ab and 5Ab connected to the tapered portions 42Aa and 5Aa on the upstream side of the water discharge direction D1, respectively. The straight portions 42Ab and 5Ab are formed parallel to the central axis C1 of the small-diameter cylindrical portion 41 and the large-diameter cylindrical portion 42. The lengths of the straight portions 42Ab and 5Ab are, for example, 10 mm.

The watering member 6 is configured to discharge the water supplied through the shower head main body 2 as a shower-like water stream. In the present embodiment, the watering member 6 includes a shower water spouting portion 61 provided with a plurality of watering holes 61A, and a central shaft 62 provided coaxially with the central axis C1 and connected to the center of the shower spouting portion 61. ing.

The shower water discharge portion 61 is formed in a disk shape. The plurality of watering holes 61A are provided so as to penetrate the shower water discharge portion 61 in the thickness direction. The outer peripheral portion of the shower water discharge portion 61 is connected to the inner peripheral portion of the annular member 5. In the present embodiment, the outer peripheral portion of the shower water discharge portion 61 and the inner peripheral portion of the annular member 5 can be detached from each other by an in-row structure so as to fit with each other without providing play such as screwing. It is attached to.

The shower water discharge portion 61 and the central shaft 62 are integrally formed. The central shaft 62 is configured such that the lower end portion penetrates the central portion of the shower water discharge portion 61 and is exposed downward. Further, the central shaft 62 is connected to the casing 4 by inserting the upper end portion into the center hole 43A of the disk portion 43 on the upstream side of the water discharge direction D1 from the annular member 5. In the present embodiment, the upper end portion of the central shaft 62 and the disc portion 43 of the casing 4 can be attached to and detached from each other by an in-row structure so that they can be fitted with each other without any play such as screwing. It is attached.

In the present embodiment, a flat plate ring-shaped rectifying net 7 is attached to the intermediate portion of the central shaft 62 so as to face the surface 61B on the upstream side of the water discharge direction D1 in the shower water discharge portion 61. The rectifying net 7 is arranged inside the annular member 5, and is configured to rectify the water that has passed through the water supply hole 43B of the disk portion 43 and supply the water to the shower water discharge portion 61.

Next, the flow of water in the shower device 1 according to the present embodiment will be described with reference to FIG. 7.

First, the water supplied to the water discharge unit 3 through the water supply flow path of the shower head main body 2 flows into the internal space of the large-diameter cylindrical portion 42 through the plurality of water supply holes 43B of the disc portion 43.

The water that has flowed into the internal space of the large-diameter cylindrical portion 42 passes through the rectifying net 7 and is rectified, and is supplied to the shower spouting portion 61. The water supplied to the shower water discharge unit 61 passes through the plurality of watering holes 61A and is discharged as a shower-like water stream below the water discharge unit 3.

A part of the water that has flowed into the internal space of the large-diameter cylindrical portion 42 flows into the annular water discharge flow path F1. The water that has flowed into the water discharge channel F1 is discharged as a circular water film from the water discharge port S1 around the shower water discharged as a shower-like water stream, and absorbs the scattered water that hits the tableware or sink inside the water film. To do. As a result, it is possible to prevent water splashing from occurring on the outside of the water film.

Further, the water flowing into the water discharge flow path F1 flows along the tapered portions 42Aa and 5Aa, so that the water discharge port S1 is an annular water film that inclines away from the central axis C1 toward the downstream side of the water discharge direction D1. Water is spouted from. Further, at this time, since the width dimension of the water discharge flow path F1 is made uniform over the entire circumference in the preset section on the upstream side of the water discharge direction D1 from the water discharge port S1, the water discharge port S1 is used. The film thickness of the discharged water film becomes more uniform over the entire circumference. As a result, the length of the water film can be made longer (for example, 20 cm or more) by suppressing the water film from merging with the shower water discharge. When the shower device 1 is used in a kitchen or a washroom, the length of the water film is required to be 15 cm or more.

The shower device 1 according to the present embodiment is configured such that the water discharge flow path F1 expands in a tapered shape and the width dimension becomes uniform over the entire circumference in the vicinity of the water discharge port S1. According to this configuration, the film thickness of the water film can be made more uniform and the length of the water film can be made longer.

Further, in the shower device 1 according to the present embodiment, the section having a length of more than half of the tapered portions 42Aa and 5Aa and the width dimension of the water discharge flow path F1 are configured to be uniform over the entire circumference. According to this configuration, the film thickness of the water film can be made more uniform and the length of the water film can be made longer.

Further, in the shower device 1 according to the present embodiment, the sprinkler member 6 and the casing 4 are detachably attached to each other in an inlay structure on the upstream side of the annular member 5 in the water discharge direction D1. According to this configuration, maintainability can be improved and shaft misalignment can be suppressed, so that the width dimension of the water discharge flow path F1 can be made more uniform over the entire circumference.

Further, according to the shower device 1 according to the present embodiment, the outer peripheral portion of the shower water discharge portion 61 and the inner peripheral portion of the annular member 5 are detachably attached to each other in an in-row structure. According to this configuration, maintainability can be improved and shaft misalignment can be suppressed, so that the width dimension of the water discharge flow path F1 can be made more uniform over the entire circumference.

The inner peripheral portion of the annular member 5 is preferably configured to expose the surface 61B on the upstream side of the water discharge direction D1 in the shower water discharge portion 61. For example, as shown in FIG. 8, it is preferable that the inner peripheral portion of the annular member 5 is configured to have a gap CL with the surface 61B of the shower water discharge portion 61. According to this configuration, it is possible to prevent the shower water discharge portion 61 from being tilted with respect to the central axis C1 by contacting a part of the inner peripheral portion of the annular member 5 with the surface 61B of the shower water discharge portion 61. As a result, the width dimension of the water discharge flow path F1 can be made more uniform over the entire circumference.

Further, between the inner peripheral surface 42A of the large-diameter cylindrical portion 42 and the outer peripheral surface 5A of the annular member 5, the width dimension of the water discharge flow path F1 is set on the upstream side of the water discharge direction D1 from the preset section. To maintain, at least three spacers may be provided at equal or substantially equal intervals. According to this structure, the width dimension of the water discharge channel F1 can be more reliably made uniform over the entire circumference, and the width dimension of the water discharge channel F1 can be suppressed from changing with time. In this case, each spacer may be provided between the straight portions 42Ab and 5Ab. According to this configuration, since the distance from each spacer to the spout S1 becomes long, it is possible to prevent the water flowing through the spout flow path F1 from reaching the spout S1 in a state of being divided by the spacer, and the water film can be prevented from reaching the spout S1. The film thickness can be made more uniform. The length of the spacer in the water discharge direction D1 is, for example, 2 mm to 3 mm.

Further, as shown in FIG. 9A, the width dimension W1 of the upstream end portion and the width dimension W2 of the downstream end portion of the water discharge direction D1 in each spacer may be shorter than the width dimension W3 of the intermediate portion thereof. preferable. According to this configuration, it is possible to prevent the water flowing through the water discharge flow path F1 from reaching the water discharge port S1 in a state of being divided by the spacer, and the film thickness of the water film can be made more uniform.

The spacer is not limited to the shape shown in FIG. 9A, and may be, for example, a rhombus as shown in FIG. 9B. Further, the spacer may have a shape in which at least one end is rounded as shown in FIGS. 9C and 9D. According to this configuration, the water flowing through the water discharge flow path F1 can be made to flow more along the spacer, and it is possible to prevent the water from being divided by the spacer.

Further, the casing 4, the annular member 5, and the watering member 6 are preferably injection-molded with a filler-containing resin. According to this configuration, since the dimensional accuracy of each member can be improved, the width dimension of the water discharge flow path F1 can be made more uniform over the entire circumference.

Further, the casing 4, the annular member 5, and the sprinkler member 6 are preferably manufactured by cutting. According to this configuration, since the dimensional accuracy of each member can be improved, the width dimension of the water discharge flow path F1 can be made more uniform over the entire circumference.

The present invention is not limited to the above embodiment, and can be implemented in various other aspects. For example, in the above description, the tapered portions 42Aa and 5Aa are formed so as to be inclined so that the diameter of the water discharge flow path F1 increases toward the water discharge port S1, but the present invention is not limited thereto. For example, the tapered portions 42Aa and 5Aa may be formed so as to be curved so that the diameter of the water discharge flow path F1 increases toward the water discharge port S1.

Further, in the above, the "preset section" is defined as a section having the entire length of the tapered portions 42Aa and 5Aa, but the present invention is not limited to this. For example, the "preset section" may be a section extending over the entire length of the water discharge flow path F1. That is, the width dimension of the water discharge flow path F1 may be configured to be uniform over the entire length of the water discharge direction D1.

Further, in the above description, the sprinkler member 6 and the annular member 5 are detachably attached to each other in an in-row structure, but the present invention is not limited thereto. For example, the watering member 6 and the annular member 5 may be integrally formed. In this case, it is possible to further prevent the water sprinkling member 6 and the annular member 5 from being displaced from each other, and the width dimension of the water discharge flow path F1 can be made more uniform over the entire circumference.

Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various modifications and modifications are obvious to those skilled in the art. It should be understood that such modifications and modifications are included therein, as long as they do not deviate from the scope of the invention according to the appended claims.

1 Shower device 2 Shower head body 2A Tip part 3 Water discharge unit 4 Casing 5 Circular member 5A Outer peripheral surface 5Aa Tapered part 5Ab Straight part 6 Sprinkling member 7 Rectifying net 41 Small diameter cylindrical part 42 Large diameter cylindrical part 42A Inner peripheral surface 42Aa Tapered part 42Ab Straight part 43 Disk part 43A Center hole 43B Water supply hole 61 Shower water discharge part 61A Sprinkler hole 61B Surface 62 Center shaft C1 Central axis D1 Water discharge direction F1 Water discharge flow path S1 Water discharge port

Claims (9)

Shower head body and
A water discharge unit attached to the tip of the shower head body and
It is a shower device equipped with
The water discharge unit
With the casing connected to the shower head body,
An annular member arranged inside the casing, which is a water discharge flow path that discharges water supplied through the shower head main body as a water film between the inner peripheral surface of the casing and the outer peripheral surface of the annular member. An annular member configured to form and
A sprinkling member arranged inside the annular member and discharging water supplied through the shower head body as a shower-like water stream.
With
The inner peripheral surface of the casing and the outer peripheral surface of the annular member have tapered portions that are inclined or curved so that the diameter of the water discharge channel increases toward the water discharge port, and at least in the water discharge direction from the water discharge port. A shower device configured so that the width dimension of the water discharge channel is uniform over the entire circumference in a preset section on the upstream side. The shower device according to claim 1, wherein the preset section is a section having a length of half or more of the tapered portion. The shower device according to claim 1 or 2, wherein the watering member and the casing are detachably attached to each other in an inlay structure on the upstream side of the annular member in the water discharge direction. The watering member has a shower water spouting portion provided with a plurality of watering holes.
The outer peripheral portion of the shower water discharge portion is connected to the inner peripheral portion of the annular member.
The shower device according to any one of claims 1 to 3, wherein the inner peripheral portion of the annular member is configured to expose the surface of the shower water discharge portion on the upstream side in the water discharge direction. The shower device according to claim 4, wherein the outer peripheral portion of the shower water discharge portion and the inner peripheral portion of the annular member are detachably attached to each other in an in-row structure. The shower device according to any one of claims 1 to 3, wherein the watering member and the annular member are integrally configured. Between the inner peripheral surface of the casing and the outer peripheral surface of the annular member, at least 3 in order to maintain the width dimension of the water discharge flow path on the upstream side in the water discharge direction from the preset section. The shower device according to any one of claims 1 to 6, wherein the spacers are provided at equal intervals or substantially equal intervals. The shower device according to claim 7, wherein the upstream end and the downstream end of the spacer in the water discharge direction have a width dimension shorter than that of the intermediate portion thereof. The inner peripheral surface of the casing and the outer peripheral surface of the annular member each have a straight portion connected to the tapered portion on the upstream side in the water discharge direction, and at least three spacers are provided between the straight portions. The shower device according to claim 7 or 8.

Images