JP2006142272A - Watering plate and showerhead - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a watering plate and a showerhead using it capable of preventing water from splashing with high efficiency of hair washing and water saving. <P>SOLUTION: A watering plate 3 preventing from water splashing is provided by concentrating and opening a mass of watering apertures 6 at central part so as to make a jet blast, making water curtain by arranging rows of annular watering apertures 62 where a mass of watering apertures are annularly arranged around this and injecting water injecting from the rows of annular watering apertures is assembled to one point on a centering line which is located apart ahead of the watering plate 3 at a prescribed distance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a shower head used in a barber shop, a beauty salon, or the like, or a shower head used in a wash basin or the like, and more particularly to a structure of a water spray plate that is attached to the tip of a shower head and sprays shower water. .

For shower heads that wash customers' hair at barbers and beauty salons, it is desirable to finish the washing quickly. However, this type of conventional shower head has a structure in which water spray holes are uniformly dispersed and opened over the entire surface of the water spray plate in order to secure a wide water spray area, and shower water having a predetermined spread is ejected. In such a case, the water is also dispersed in areas other than the area where the water is desired to be applied, so that not only the water is jetted unnecessarily, but also the washing effect is low due to the low momentum of the jetted water. There is a drawback that water is wasted after a long time.
In order to enhance the cleaning effect, a jet jet having a strong jet water flow is effective. However, when the jet jet is applied to the head, there is a problem that the water hitting the head scatters to the surroundings, so that the area around the washstand and the customer are immersed.

As means for preventing the spray water from scattering, a proposal has been made in which a spray hole for forming a curtain of water is formed around the water spray plate as disclosed in JP-A-4-367754.
This is said to be effective in preventing splashing due to splashing of water because the jet sprayed from the injection holes formed in the periphery creates a curtain of water.
However, in such a structure, since the opening of the injection hole for forming the curtain is large, most of the water is injected from the injection hole for forming the curtain, and less water is injected from the injection hole in the central portion. Therefore, a vigorous jet cannot be obtained. In addition, there is a problem that when the jet jetted from the curtain-forming jet holes hits the head or the like, the jet itself bounces off and scatters, and a sufficient effect for preventing the scatter cannot be obtained.
JP-A-4-367754

  An object of the present invention is to provide a watering plate that has a high hair cleaning effect, is effective in saving water, and can suppress the splash of water, and a shower head using the same.

In the present invention, a water curtain is formed by concentrating and opening a large number of sprinkling holes in the central portion to create a jet jet, and by providing an annular sprinkling hole array in which a large number of sprinkling holes are arranged around the periphery. In addition, a watering plate is provided that prevents the water from splashing back by gathering the water sprayed from the annular watering hole array toward a point on the center line at a predetermined distance in front of the watering plate. .
Such a water spray plate is high because jet spray water is jetted from a large number of water spray holes that are concentrated and opened in the center of the water spray plate, and this jet jet is jetted to a location where it is desired to wash. Detergency can be obtained.
In addition, since an annular sprinkling hole array is provided surrounding the central sprinkling hole group, the jet water ejected from the annular sprinkling hole array surrounds the jet jet to form a water curtain, and the jet spout water is scattered. Or trying to bounce off the head.
In addition, since the water sprayed from the annular sprinkling hole row is sprayed so as to concentrate toward one point on the center line in front of the water spray plate, a shower is put on the head at a position closer to the water spray plate than this concentrated point. When water is applied, the water sprayed from the annular sprinkling hole array hits the head diagonally inward, thus preventing the water from bouncing back.
Note that the number of holes in the central sprinkling hole group is preferably larger than the number of holes in the annular sprinkling hole row.
In addition, a plurality of annular sprinkling hole rows may be provided concentrically, and the term “annular” as used herein is not limited to a circle, but may be arranged in an elliptical or irregular shape in the circumferential direction.
And the point where the water sprayed from the annular sprinkling hole row gathers is preferably a distance of about 250 mm to 500 mm ahead of the watering plate.
Furthermore, the distance between adjacent water spray holes in the annular water spray hole row is preferably closer to make a water curtain, but from the viewpoint of processing problems and the size of the holes, 1.0 mm to 3.0 mm. Is good.

In a preferred embodiment of the present invention, the number of water spray holes is 200 or more, the diameter of each water spray hole is 0.1 mm or more and 0.4 mm or less, and the total opening area of the water spray holes is 35 mm ² or less. .
Since such a water spray plate has a total opening area of 35 mm ² or less, the opening area is smaller than the conventional one, and the amount of water flow can be reduced, so that a water-saving effect is obtained.
Moreover, in this case, since the number of water spray holes is 200 or more and the diameter of each water spray hole is 0.1 mm or more and 0.4 mm or less, the number of water holes is larger than that of the conventional water spray holes and smaller than the conventional water spray holes. Become. For this reason, a lot of thin and strong (high flow rate) water flow is jetted from each sprinkling hole, so the cleaning effect is enhanced, and water penetrates into the gaps of the hair and reaches the scalp. As a result, the washing-out effect is increased.
In addition, the size of the watering holes is preferably 0.1 mm or more and 0.4 mm or less in relation to the thickness of the watering plate.
In another aspect, the watering plate is formed of a thin metal plate, and the watering holes are formed by photoetching. Thereby, the watering board in which many small watering holes were formed can be manufactured easily.
In this invention, the shower head formed by attaching the said watering board to a shower head main body is provided. This shower head has the advantages of the watering plate.

According to the present invention, since a large number of water spray holes are arranged in the central portion of the water spray plate, the water sprayed from the central portion becomes a jet jet, and strong water hits the location to be washed. So cleaning effect is great. For this reason, the amount of water used can be saved.
In addition, despite the strong jet jet on the head, the water sprayed from the annular sprinkling hole array creates a water curtain to prevent water splashing and tilts inward with respect to the water hitting surface. Prevents bouncing because it hits. Therefore, it is possible to prevent problems such as the water around the customer and the washstand.
Moreover, since the total opening area of the watering hole opened in a watering board is smaller than before, a flow rate is restrict | limited and the water-saving effect is acquired from this.

First embodiment

A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front view of the watering plate, and FIG. 2 is a side view showing a section of the shower head.
The shower head main body 1 shown in FIG. 2 has a shower hose 2 connected to one end, and a water spray plate 3 attached to an opening opening at the other end. The water spray plate 3 is detachably attached to the head body 1 by a press ring 4 and is kept watertight by a sealing material 5 such as rubber.
Next, the water spray plate 3 will be described with reference to FIG.
The water spray plate 3 of the present embodiment is made of a stainless steel thin plate. This stainless steel thin plate forms a flat disk having a plate thickness of 0.4 mm and a diameter of about 46 mm, and such a water spray plate 3 made of stainless steel has a large number of water spray holes 6. The diameter of each watering hole is 0.1 mm or more and 0.4 mm or less. In this embodiment, a hole having a diameter of 0.3 mm is formed by photoetching.
The water spray holes 6 are arranged as shown in FIG. That is, a large number of water spray holes 6 are formed in a central portion of the water spray plate 3 to form a central water spray hole group 61. A total of 156 of these central sprinkling hole groups 61 are opened in a circle having a diameter of 16 mm in the central portion of the sprinkling plate 3. Specifically, 12 on a 4 mm diameter circumference, 24 on a 7 mm diameter circumference, 30 on a 10 mm diameter circumference, 40 on a 13 mm diameter circumference, and a 16 mm diameter circle 50 pieces are opened on the circumference. Therefore, the total number of holes in the sprinkling hole group 61 is 156, and the total opening area is 11.02 mm ² . The jet flow injected from the central sprinkling hole group 61 is jetted straight straight forward.
Around the center sprinkling hole group 61, an annular sprinkling hole array 62 is provided in which a large number of sprinkling holes 6 are arranged in a ring shape. For example, the annular sprinkling hole row 62 is formed by opening 100 sprinkling holes on a circumference having a diameter of 34 mm, and has a total opening area of 7.06 mm. In this case, the interval between adjacent water spray holes in the annular water spray hole array 62 is 1.06 mm.
Each sprinkling hole of the annular sprinkling hole row 62 has a hole center line formed obliquely with respect to the sprinkling plate 3, and the water sprayed from each sprinkling hole of the annular sprinkling hole row 62 is as shown in FIG. The water is gathered at a point P on the center line of the water spray plate 3 and a predetermined distance L in front of the water spray plate 3.
This distance L is 200 mm to 800 mm, and is set to 450 mm in this example.
In such a water spray plate 3, each of the water spray holes 6 is a small hole and is partially disposed at a high density. Molding with resin complicates the mold and shortens the mold life. For these reasons, the water spray plate 3 of the present embodiment is manufactured by photoetching using a stainless steel thin plate.

The operation of the shower head having such a structure will be described.
When the shower head main body 1 is connected to the shower hose 2 and the water tap is opened, tap water (or hot water) is supplied to the shower head main body 1 through the shower hose 2, and this water is a water spray hole 6 opened in the water spray plate 3. It is sprayed more and becomes shower water.
In this case, the sprinkler plate 3 of this embodiment has a total of 256 sprinkling holes 6 with a diameter of 0.3 mm, so that the total opening area is 18.09 mm ^2. Compared to the head (opening area 40 to 80 mm ² ), the water flow rate is reduced by the water spray plate 3, and the water flow rate per unit time can be reduced, that is, there is a water saving effect.
Table 1 evaluates the water-saving effect, and measures the maximum flow rate of various shower heads when the opening of the water tap connected to the shower hose is maximized. The tap water pressure at that time (water tap end pressure when the water tap is closed) is 0.26 Mpa (hydrostatic pressure).

表１から判る通り、散水孔の総開口面積が小さいほど、最大流量は少なくなり、節水効果が現れる。従来例１及び２では、散水孔の数が少ないが各孔の径が大きくて総開口面積は４０ｍｍ^２を越えている。このため最大流量は多くなって節水効果は低い。
これに比べて、本実施例の場合は、総開口面積が３０ｍｍ^２以下になっているので、最大流量は少なく、したがって節水効果を奏する。

As can be seen from Table 1, the smaller the total opening area of the sprinkling holes, the smaller the maximum flow rate and the water saving effect appears. In Conventional Examples 1 and 2, the number of watering holes is small, but the diameter of each hole is large and the total opening area exceeds 40 mm ² . For this reason, the maximum flow rate increases and the water-saving effect is low.
In contrast, in the case of the present embodiment, the total opening area is 30 mm ² or less, so the maximum flow rate is small, and therefore a water-saving effect is achieved.

And since water flow is restrict | squeezed by the watering board 3, a water pressure becomes high inside the watering board 3, and for this reason, the jet water injected from each watering hole 6 ... becomes strong, ie, a water flow becomes quick. As a result, a large number of thin water with a high flow velocity is jetted as a whole.
In this case, a total of 156 water spray holes 6 are concentrated and opened in the center of the water spray plate 3. Therefore, the jets ejected from the central water spray hole group 61 are ejected vigorously and straightly. And sprayed to the place where you want to wash your head. Therefore, a sufficient cleaning effect can be obtained.
In particular, since a large number of water erupts like a thread from a narrow hole, the hair is scraped and reaches the scalp. Therefore, the cleaning effect is further enhanced.
At the same time, since 100 sprinkling holes are formed around the sprinkling plate 3 on the circumference, the water spray is ejected from the annular sprinkling hole row 62 in a cylindrical shape. This jet surrounds the straight jet, and since the interval between the jets ejected from the water spray holes is small, it becomes a water curtain. For this reason, even if water scatters from a straight jet stream, or when water hits the head and bounces off, it is blocked by the surrounding water curtain, and splashing of the splash is prevented.
In beauty salons and barbershops, it should be noted that when washing hair, a shower is placed on the head from a relatively close position. That is, in a hairdressing salon or a barber shop, as shown in FIG. 2, shower water is applied to the head from a distance S within 200 mm from the customer's head, and in practice from a distance of about 50 to 100 mm. In this embodiment, the jet sprayed as a water curtain from the annular sprinkling hole row 62 is gathered at a point P 450 mm away from the front of the water spray plate 3 in this embodiment. When jetting away about 50 to 100 mm, it hits the head before reaching the concentration point P. In this state, the curtain-like water stream strikes obliquely toward the inside with respect to the surface on which the water strikes, and enters in an inclined manner, thus preventing outward rebound.
Therefore, even if a curtain-shaped water flow hits the head, it is possible to effectively prevent the water from bouncing back.
For this reason, despite the fact that a lot of strong water is jetted from a large number of thin holes, the splash of water is prevented, and problems such as water immersion around the customer's body and washstand are prevented. .

Second embodiment

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a front view of the watering plate, and FIG. 4 is a side view showing a part of the shower head.
2nd Example is a case where the number of the watering holes 6 formed in the watering board 3 is increased.
That is, as shown in FIG. 3, a central sprinkling hole group 61 in which a large number of sprinkling holes 6 are concentrated is opened at the central portion of the sprinkling plate 3. As in the first embodiment, a total of 156 sprinkling holes 6 having a diameter of 0.3 mm are opened, and the total opening area is 11.02 mm ² . The jet flow injected from the central sprinkling hole group 61 is jetted straight straight forward.
Two rows of annular sprinkling hole rows 62 and 63 are formed around the central sprinkling hole group 61. The annular sprinkling hole row 62 located on the outermost side is configured by, for example, opening 100 sprinkling holes on a circumference having a diameter of 34 mm, as in the first embodiment, and the interval between adjacent sprinkling holes is as follows. 1.06 mm.
The inner annular sprinkling hole 63 has 60 sprinkling holes formed on a circumference having a diameter of 20 mm, and the interval between adjacent sprinkling holes is 1.04 mm.
Therefore, the total opening area of these two rows of annular sprinkling hole rows 62 and 63 is 11.3 mm ² .
In these two rows of annular sprinkling hole rows 62 and 63, each sprinkling hole has a hole center line formed obliquely with respect to the sprinkling plate 3, and is sprayed from each sprinkling hole of these annular sprinkling hole rows 62 and 63. As shown in FIG. 4, the spray water is gathered at a point P on the center line of the water spray plate 3 and a predetermined distance L away from the front of the water spray plate 3.
This distance L is set to 450 mm as in the first embodiment.

The shower head using such a water spray plate 3 has a total of 316 water spray holes 6 having a diameter of 0.3 mm, and therefore has a total opening area of 22.32 mm ^2. Compared to the shower head (open area 40 to 80 mm ² ), the water flow per unit time can be reduced, that is, there is a water saving effect. Table 1 shows the water flow rate of the second embodiment, and the maximum flow rate is smaller than that of the conventional shower head, and therefore, a water-saving effect is achieved.
And the jet stream injected from the central sprinkling hole group 61 spouts straight out vigorously, and becomes a jet jet stream and is injected to the place which wants to wash | clean a head. Therefore, a sufficient cleaning effect can be obtained.
At the same time, since the two circular sprinkling hole rows 62 and 63 formed around the water spray plate 3 are sprayed around the straight jet flow, it becomes a water curtain, and water is scattered from the straight jet flow or the water comes to the head. Even if it hits and bounces off, it is blocked by this water curtain, preventing splashes of water splashing.
In particular, when used in a hairdressing salon or a barber shop, a shower is applied to the head from a relatively close position (distance of about 50 to 100 mm), so that it is easy to cause water splashing with a strong jet. Since the jets ejected from the rows 62 and 63 as water curtains are gathered at the point P, which is 450 mm away from the front of the water spray plate 3, they hit the head just before reaching the concentration point P. In this state, these curtain-shaped water flows are slanted inward with respect to the surface on which water hits, and prevent outward rebound.
Therefore, although a lot of strong water is jetted from a large number of thin holes, the splash of water is prevented, and problems such as the immersion of the customer's body and the surroundings of the washstand are prevented.

The watering plate 3 of each of the above-described Examples 1 and 2 is made of a stainless steel plate and manufactured by photoetching. Therefore, a large number of water spray holes 6 can be easily formed at a high density at the center, and the intervals between adjacent water spray holes in the surrounding annular water spray hole rows 62 and 63 can be made small. If an attempt is made to form sprinkling holes of the same density with synthetic resin, it is necessary to precisely form small needle-like protrusions on the molding die. Since such a mold is difficult to manufacture and there are problems such as the needle-like protrusions being easily broken, it is advantageous to manufacture by a photo-etching process.
The watering plate of the present invention is effective for use in a shower head used in a barber shop or a beauty salon, and is also effective for a shower head installed in a bathroom sink.

  As described above, according to the present invention, a strong jet flow can be obtained with a small amount of water, so that the cleaning effect is large, but shower water with little splashing can be obtained, which is suitable for use in a beauty salon or a barber shop. .

      The front view of the watering board which shows 1st Example of invention and shows arrangement | positioning of a watering hole       Side view showing a partial cross section of a shower head using the watering plate       The front view of the watering board which shows 2nd Example of invention and shows arrangement | positioning of a watering hole       Side view showing a partial cross section of a shower head using the watering plate

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Shower head main body 3 ... Sprinkling plate 6 ... Sprinkling hole 61 ... Central sprinkling hole group 62, 63 ... Ring sprinkling hole row

Claims (5)

  In addition to opening a large number of sprinkling holes that create jet jets in the center, an annular sprinkling hole array is formed around this sprinkling hole that forms a water curtain. The water spray plate is characterized in that the water spray is collected toward a point on the center line at a predetermined distance in front of the water spray plate.   2. The watering plate according to claim 1, wherein a spacing dimension between adjacent watering holes in the annular watering hole array is 1.0 mm or more and 3.0 mm or less. Claims pore number of nozzle holes is 200 or more, the diameter of each nozzle holes is at 0.1mm or 0.4mm or less, and the total opening area of the nozzle holes is equal to or is 35 mm ² or less The watering board of Claim 1 or Claim 2.   The watering plate according to any one of claims 1 to 3, wherein the watering plate is formed of a thin metal plate, and the watering holes are formed by photoetching.   It is a shower head provided with a water spray plate at the other end of the shower head main body, one end of which is connected to the shower hose, and the water spray plate is the water spray plate according to any one of claims 1 to 4. Shower head characterized by.

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