JP2009235779A - Water faucet and custom kitchen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water faucet capable of discharging water in a wide area and also, after water landing, capable of releasing a shower discharge flow capable of widely forming water film on the surface of an object to be washed. <P>SOLUTION: This water faucet comprises a shower discharge part. The shower discharge part comprises a spray plate having a plurality of spray holes. The shower discharge part discharges water flow in the direction tilted downward relative to the horizontal. The plurality of spray holes are so arranged in the spray plate as to form a wide water film when the discharge flow lands on the object. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  Aspects of the invention generally relate to faucets and system kitchens. More specifically, the present invention relates to a system kitchen provided with a faucet, a sink, and a counter.

  During cooking, washing is performed to remove dirt adhering to kitchen knives, vegetables, tableware and the like. The washing operation in such washing can be divided into two types. One is an operation of washing an object with little dirt, which is called “easy washing”. The other is the operation of washing things that are difficult to remove, and this is called “careful washing”.

  “Easy washing” is an operation of mainly rinsing, and specifically, an operation of washing a kitchen knife, a cutting board, vegetables with little dirt, or the like. The cleaning time is short, for example, about 2 seconds. On the other hand, “careful washing” is mainly an operation of scrubbing, and specifically, an operation of washing mud dirt, oil dirt, “meat” of meat or fish, and the like. The washing time is longer than “easy washing”, for example, about 10 seconds or more.

In addition, it can also be classified into “preparation washing” for washing mud vegetables, leafy vegetables and the like together, and “clean-up washing” for washing dishes, pots, frying pans, and the like.
In this case, in any washing operation, it is preferable to improve the washing effect and workability and quickly finish the washing of tableware and the like.

  Conventionally, there has been known a faucet having a shower water outlet provided with a plurality of sprinkling holes for washing and washing dishes, cooking utensils, ingredients, etc., and a rectifying water outlet for drawing water and the like. It has been. The shower spout is suitable for washing large cooking utensils, tableware, foodstuffs and the like because water is discharged over a wide area. Since the shower spout spouts water over a wide area, the amount of water discharged per unit area is reduced, and there is a problem that it takes time to return when cleaning small cooking utensils such as chopsticks and spoons, tableware, and foodstuffs. Moreover, generally the shower water discharge flow discharged from the shower water outlet is granulated from the time it is discharged until it reaches the water, since the hole diameter of the water spray holes is small. And since a plurality of granulated water droplets intermittently land on the sink and the object to be cleaned, the stability of the water film formed on the surface of the sink and the object to be cleaned after landing is poor. The wetting of the water film is small. Therefore, although the cleaning efficiency of the range in which the shower water discharge is discharged is good, there is also a problem that the cleaning efficiency decreases when cleaning a larger cooking utensil, tableware, foodstuffs or the like.

On the other hand, faucets that discharge water with a strong water force in a wide range have been proposed (for example, Patent Documents 1 and 2). However, in the techniques disclosed in Patent Documents 1 and 2, although spouted water can be obtained vigorously, the rebound of water is increased, and there is a risk that the surroundings may be uncomfortablely wetted.
There is also a faucet that prevents clogging of the sprinkling holes of the faucet provided with a plurality of sprinkling holes, and prevents the water from splashing when the discharged shower water discharge reaches the bottom of the sink. It has been proposed (Patent Document 3). However, the technique disclosed in Patent Document 3 has a problem of poor cleaning efficiency although water splash is prevented.
JP 2000-27247 A JP 2002-004368 A JP 2001-279748 A

  An aspect of the present invention has been made based on recognition of such a problem, and discharges water in a wide range and discharges a shower water discharge flow that can form a water film widely on the surface of an object to be cleaned even after landing. To provide a faucet.

  According to one aspect of the present invention, the water faucet includes a shower water spouting unit, the shower water spouting unit includes a water spray plate including a plurality of water spray holes, and the shower water spouting unit is horizontal. A faucet characterized in that it discharges a water discharge in a downwardly inclined direction, and the water spray holes are arranged on the water spray plate so that a wide water film is formed when the water discharge flows on the water spray plate. Provided.

  ADVANTAGE OF THE INVENTION According to this invention, the water faucet which can do a cleaning operation easily, can improve a cleaning effect, and has few splashes is provided.

An embodiment of the first invention is a faucet provided with a shower water discharger, wherein the shower water discharger includes a water spray plate provided with a plurality of water spray holes, and the shower water discharger is horizontal, A water faucet that discharges a water discharge in a direction inclined downward, and wherein the plurality of water spray holes are arranged on the water spray plate so that a wide water film is formed when the water discharge flows upon landing. is there.
According to this system kitchen, a wide water film is formed in the longitudinal direction, and a wide water film can be formed even after landing. Moreover, since the discharged water forms a water film, water splash is suppressed.

According to a second aspect of the present invention, in the first aspect of the present invention, the plurality of water spray holes are disposed in the water spray plate in a flat shape having a longitudinal direction as a longitudinal direction, and project upward. It is a faucet characterized by being arranged in a shape.
According to this faucet, water is discharged in a wide range in a direction parallel to the direction of discharge, and a wide water film is formed even after landing, so that the washing operation can be made efficient. Moreover, since the discharged water forms a water film, water splash is suppressed.

According to a third aspect of the present invention, in the first aspect of the present invention, the plurality of sprinkling holes form a plurality of sprinkling hole groups each consisting of a set of the sprinkling holes. The holes are arranged in a convex shape toward the upper side, and the watering hole group is arranged in a plurality of flat shapes with the vertical direction as a longitudinal direction on the watering plate.
According to this faucet, since the arrangement of the water spray holes forming the water spray hole group is convex, a wide water film after landing is realized. In addition, since water released from a plurality of water holes of the same water hole group is integrated after landing, it can be regarded as water discharged from a water hole having a large diameter. Therefore, even when the interval between the water spray hole groups in the direction parallel to the discharge direction is wide, a wide water film after landing can be expected.

In an embodiment of the fourth invention, the plurality of water spray holes form a plurality of water spray hole groups each consisting of a set of the water spray holes, and the water spray hole groups are flattened with the water spray plate having a longitudinal direction as a longitudinal direction. A water faucet having a plurality of shapes arranged in a convex shape upward.
According to this faucet, water discharged from a plurality of water holes of the same water hole group is integrated after landing, and can be regarded as water discharged from a water hole having a large diameter. Therefore, the same effect can be obtained as in the case where the sprinkling holes having a large diameter are arranged in a flat shape with the vertical direction as the longitudinal direction and are arranged in a convex shape upward. That is, a wide water film after landing can be expected even when the interval between the water spray hole groups in the direction parallel to and the direction perpendicular to the discharge direction is wide.

An embodiment of a fifth invention is the embodiment of any one of the first to fourth inventions, wherein the plurality of watering holes comprise a first watering hole and a second watering hole, and the second watering. The hole has a larger diameter than the first sprinkling hole, and the second sprinkling hole is arranged more on the lower side than the central part in the vertical direction of the watering plate. is there.
According to this faucet, since a larger water droplet can be landed, the collision force is increased and the cleaning effect is improved. However, since the watering hole diameter located on the cooker side remains small, there is no fear of water splashing.

An embodiment of a sixth invention is a system kitchen comprising the sink and the faucet arranged to discharge a water discharge flow to the sink in the embodiment of any one of the first to fifth inventions. .
According to this system kitchen, water can be discharged over a wide range in the front-rear direction of the sink, and a wide water film can be formed even after landing, so that the washing operation in cooking can be made efficient. Moreover, since the discharged water forms a water film, water splash is suppressed.

Hereinafter, embodiments of the present invention will be illustrated with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic perspective view for illustrating a system kitchen according to an embodiment of the present invention.
The system kitchen 10 according to the present embodiment includes a faucet 20, a sink 30, and a counter 60. The faucet 20 is provided with a rectifying water discharging part 22 and a shower water discharging part 24. The sink 30 includes a sink bottom surface 34 that is smooth and substantially horizontal, a sink front surface 36, a sink left side surface 37, a sink right side surface 39, and a sink rear surface 38. Further, the system kitchen 10 may be provided with a cooking table (not shown) extending to at least one of the left side and the right side of the counter 60. In the specification of the present application, “rectification” means a case where the water flow is substantially one water discharge flow, and “shower” means a case where the water flow becomes a plurality of water discharge flow. The term “water” includes “hot water” and “warm water”.

  The faucet 20 is provided on the counter upper surface 62 behind the sink 30 as viewed from the user, that is, behind the system kitchen 10. The proximal end portion of the faucet 20, that is, the vicinity of the portion attached to the counter 60 is provided so as to be perpendicular to the counter upper surface 62. The support portion positioned above a predetermined dimension is provided to be inclined with respect to the counter upper surface 62. In this case, the inclination angle θ can be set to about 60 ° with respect to the counter upper surface 62, for example. The inclination angle θ will be described later. A water discharge part is connected to the tip of the inclined support part, and the water discharge part is provided with a rectifying water discharge part 22 and a shower water discharge part 24.

  Further, an installation surface (not shown) that is inclined at a certain angle is provided at a connecting portion (substantially ridgeline portion) between the counter upper surface 62 and the sink rear surface 38, and a linear water faucet provided perpendicular to the installation surface is provided. You can also Further, the sink surface 38 is extended in a horizontal direction with respect to the counter upper surface 62 by a predetermined dimension, the tip is further extended in the vertical direction with respect to the counter upper surface 62 by a predetermined dimension, and is positioned above the predetermined dimension. A faucet having a shape in which the portion to be tilted with respect to the counter upper surface 62 can also be used. Further, it is provided behind the sink 30 on a wall surface perpendicular to the counter upper surface 62, extends from the wall surface by a predetermined dimension in the horizontal direction, and has a tip inclined with respect to the counter upper surface 62. It can also be made into a shaped faucet.

In addition, the shape of the faucet is not limited to the illustrated example, and the shape of the water faucet is discharged at least from the shower water spouting portion in a direction inclined with respect to the counter upper surface 62 (the sink bottom surface 34). I just need it. The shape of the faucet, the rectifying water discharging unit 22 and the shower water discharging unit 24 will be described later. Moreover, the installation location of the faucet can be changed as appropriate.
The faucet 20 has a water discharge portion (rectified water discharge portion 22 and shower water discharge portion 24) located behind the sink front surface 36 and above the counter 60. Further, the rectifying water discharger 22 and the shower water discharger 24 are provided toward the sink 30 while being inclined with respect to the counter upper surface 62. Therefore, it is possible to discharge the water discharge flow from a direction inclined with respect to the counter upper surface 62 from the water discharge portion (rectifying water discharge portion 22, shower water discharge portion 24).

FIG. 2 is a schematic view for illustrating the water discharge portion of the faucet.
2A is a schematic front view of the water discharge portion, and FIG. 2B is a schematic cross-sectional view showing a cross section taken along the line AA in FIG. 2A, and FIG. These are schematic sectional drawings showing the BB arrow cross section in Fig.2 (a).

The faucet 20 includes a rectifying and discharging part 22 provided near the tip of the faucet 20 and a shower and discharging part 24 provided below the rectifying and discharging part 22. The faucet 20 includes a rectifying water distribution pipe 23 for guiding water to the rectifying water discharge section 22 and a shower water distribution pipe 25 for guiding water to the shower water discharge section 24.
As shown in FIG. 2, the shower water discharger 24 is provided with a substantially rectangular parallelepiped reservoir 24b having one end opened and the vertical direction as the longitudinal direction. A watering plate (not shown) having watering holes (see FIGS. 3 and 5 to 9) is provided so as to cover the opening of the storage unit 24 b. Therefore, the faucet 20 of this embodiment can perform rectified water discharge and shower water discharge. Switching between the rectified water discharge and the shower water discharge can be performed by, for example, a switching unit (not shown) provided at the tip of the faucet 20. The switching unit may be provided at the base of the faucet 20 or the counter upper surface 62.

  As will be described later, the water discharge flow section immediately after being discharged from the shower water discharge unit 24 has a flat shape with the vertical direction as the longitudinal direction. As described above, since the upper part of the faucet 20 is inclined by the inclination angle θ with respect to the counter upper surface 62, the water discharged from the shower water spouting portion 24 is also inclined from the counter upper surface 62 in the oblique direction. The water is discharged toward 34. For this reason, the horizontal cross section of the water discharge flow across the counter upper surface 62 has a flat shape with the direction perpendicular to the counter leading edge 64 as the longitudinal direction.

  The rectifying water distribution pipe 23 passes toward the left side of the faucet 20 and is connected to the left side and the lower side of the storage portion 22b. On the other hand, the shower water distribution pipe 25 passes to the right side of the faucet 20 and is connected to the right side and the lower side of the storage portion 24a.

  The width dimension L2 in the left-right direction of the faucet 20 can be appropriately changed according to the size of the cleaning object. For example, the object to be washed is generally a hand, a kitchen utensil such as a kitchen knife or a pan, or foodstuffs, but if the width dimension L5 (see FIG. 3), which will be described later, is increased too much together with the width dimension L2, small objects are washed. In some cases, extra water may be consumed. On the other hand, if the width dimension L5, which will be described later, is shortened too much together with the width dimension L2, water is applied only in a narrow range, so that a large hand must be moved when washing large objects.

  In this case, for example, the width dimension L2 in the left-right direction of the faucet 20 can be set in consideration of washing hands and knives that are frequently performed during cooking. For example, if the width dimension L2 is about 40 mm and the width dimension L5 is about 20 mm, “easy washing” can be performed in a short time without moving the hand or the knife part in the left-right direction. However, it is not necessarily limited to the illustrated dimensions, and can be appropriately changed according to the size of the cleaning object.

Drawing 3 is a mimetic diagram for illustrating the watering board provided in a shower spout part, and is a mimetic diagram at the time of seeing from the front. In addition, Fig.3 (a) is a schematic diagram at the time of seeing the whole watering board from the front, and FIG.3 (b) is a schematic diagram for illustrating a watering hole group.
The water spray plate 26 illustrated in FIG. 3A is fixed to the shower water discharger 24 of the faucet 20 so as to cover the opening of the reservoir 24b. The water spray plate 26 is provided with a plurality of water spray hole groups 27. As shown to Fig.3 (a), a watering hole group can be arranged in 2 rows, for example. In addition, a watering hole group is mentioned later.
The region where the watering holes are provided is a flat shape with the vertical direction as the longitudinal direction, and has a convex shape. In this case, the flat shape means that the width in the direction orthogonal to the one width is longer than the other width. The width is a distance projected in the vertical or horizontal direction between watering holes located at the outermost end in the vertical direction or the horizontal direction. In this case, the convex shape means a shape in which the lateral width above the lower side is narrower in the distance between the leftmost watering hole and the rightmost watering hole, that is, the lateral width. The shape having a narrow width above the lower side may be a shape that gradually becomes narrower toward the upper side, or may simply be a shape whose upper side is narrower than the lower side. Examples of the shape that gradually decreases in width toward the upper side include a V shape, an arc shape, a parabolic shape, and a trapezoidal shape. For example, the shape in which the upper part is narrower than the lower part may be, for example, a shape in which three squares are arranged horizontally and one square is arranged in the upper part. The left and right shapes do not necessarily have to be contrasted, and may be, for example, a triangle that is biased to the left and right. Further, for example, a space without a hole may be provided in the lower central portion as in a V shape, or a space without a hole as in a triangle may not be provided.
For design reasons and other reasons, if the outermost wall has water holes that do not affect the formation of the water film, the width dimension in the horizontal or vertical direction of the water hole that is effective for water film formation is set. It is only necessary to define a flat shape and a convex shape. The degree that does not affect the formation of the water film is that the total area of the watering holes is less than 10% compared to the total area of all the watering holes.

  In the sprinkling hole group 27 shown in FIG. 3B, for example, the number of sprinkling holes 27a can be about 120. Water can be discharged from the water sprinkling holes 27a via the storage portion 24b, and the discharged water becomes a shower water discharge and reaches the sink bottom surface 34.

FIG. 4 is a schematic diagram for illustrating the shape of the object to be cleaned. 4A is a schematic diagram for illustrating a general knife, and FIG. 4B is a schematic diagram for illustrating a user's hand.
According to the knowledge obtained by the present inventor, the length L10 of a general knife blade is about 170 mm. The blade width L11 is about 30 mm. Further, the width dimension L12 of the hand of a person aged 20 to 69 years is about 114.6 mm at the maximum, about 90.4 mm at the minimum, and about 102.6 mm on the average. For women, the maximum is about 103.1 mm, the minimum is about 80.8 mm, and the average is about 91.8 mm. In addition, the hand length (length from the fingertip to the wrist) L13 is about 197 mm at the maximum, about 165.6 mm at the minimum, and about 181 m on average for men. For women, the maximum is about 181.2 mm, the minimum is about 154.4 mm, and the average is about 167.3 mm.

  Here, the horizontal width dimension L5 and the vertical width dimension L6 of the region where the water spray holes 27a are provided will be described. In addition, as shown in FIG. 3, the width dimension L5 is a dimension between the parts located in the outermost part of the outer edge of what was provided in the leftmost end and the rightmost end among the watering holes 27a arrange | positioned. Moreover, the vertical width dimension L6 is a dimension between the parts located in the outermost part of the outer edge of what was provided in the uppermost end and the lowest end among the watering holes 27a arrange | positioned.

  The shower water discharger 24 provided in the system kitchen 10 is preferably capable of discharging water over a wide range to cooking utensils such as kitchen knives and user's hands.

  Among them, it is preferable to prevent water from being discharged over substantially the entire width of the kitchen knife and landing directly on the sink 30 without hitting the kitchen knife for a kitchen knife having a short width dimension. This is to suppress water that does not hit the cleaning object and is wasted. According to the knowledge obtained by the present inventor, if the width L5 is about 20 mm with respect to the width L11 (about 30 mm) of a general knife, the discharged water does not hit the knife and the sink 30 Direct landing on the water can be suppressed. Thereby, the discharged water can be effectively used as water for cleaning, and wasteful water that is not used for cleaning can be reduced.

  In addition, as illustrated in FIG. 4, many cleaning items such as cooking utensils and hands have a length of about 170 mm. However, if water is discharged to the entire length of these washed objects at once, a large amount of water is consumed. According to the knowledge obtained by the present inventor, if water is discharged with respect to the length of approximately half of the entire length of the cleaning object, and the remaining approximately half of the length is washed away by the water flowing over the cleaning object, The cleaning effect can be improved while suppressing the amount of water used.

Here, when the user performs “easy washing”, the user wants to visually check the state of washing at the same time that the washing object is poured into the water discharged from the shower water discharger 24 (sprinkling hole 27a) and washed. The angle at which the cleaning object is fed out is substantially parallel to the counter top surface and is inclined to the traveling direction of water, so that the vertical dimension L6 is set to be approximately half the length of the entire length of the washing article. Even if the length is shortened, the water reaches about half of the entire length of the cleaning object on the cleaning object. According to the knowledge obtained by the present inventor, for example, when the longitudinal dimension L6 is set to about 65 mm, water corresponding to a length of about 70 mm to about 75 mm can be applied to the cleaning object. As a result, water can be applied to a wide range of the cleaning object, and the amount of water used can be suppressed.
Further, for example, the vertical width dimension L60 of the water spray hole group 27 can be set to 33 mm, the horizontal width dimension L50 can be set to 20 mm, and the distance L7 between the water spray hole groups can be set to 14 mm. In this case, the vertical width dimension L6 of the region where the water spray holes are provided can be 65 mm.

  However, the horizontal width dimension L5 and the vertical width dimension L6 of the region where the water spray holes 27a are provided are not limited to the illustrated dimensions. In this case, if the vertical width dimension L6 is larger than the horizontal width dimension L5, it can be appropriately changed according to the size of the cleaning object.

Next, a modified example of the watering plate fixed to the shower water discharger 24 is illustrated.
5 to 9 are schematic views for illustrating modifications of the watering plate fixed to the shower water discharger 24.

  As shown in FIG. 5, the watering plate 26 c is provided with a watering hole group 27 c instead of the watering hole group 27 illustrated in FIG. 3. In this case, the number of sprinkling holes is not plural but only one, and the number of sprinkling holes can be about 250, for example. The sprinkling hole group means a set of sprinkling holes in which the distance between the nearest sprinkling holes is within six times the diameter of the sprinkling holes. When water is discharged from the sprinkling holes, it is granulated by shear stress, collides with the solid surface or a liquid film formed on the solid surface in the form of water droplets, and is deformed by the impact. The deformation amount of the water droplet varies depending on the water droplet diameter, the collision speed, the collision angle, the viscosity, the density, the surface state of the solid, the liquid film thickness, and the like. Therefore, considering the interaction between water droplets discharged from different water spray holes, within 6 times the pore diameter, the probability of being integrated after landing and forming a water film increases. It is considered that the influence of each other is reduced.

  The dimension L5c in the horizontal direction (left-right direction in the figure) of the region where the water spray holes are provided can be, for example, about 20 mm, and the dimension L6c in the vertical direction (up-down direction in the figure) is, for example, about 65 mm. can do. Moreover, the dimension L30c in the upper horizontal direction (left and right direction in the figure) can be set to, for example, about 7 mm, and the dimension L20c in the lower vertical direction (up and down direction in the figure) can be set to, for example, about 16 mm. In the case illustrated in FIG. 5, the dimension L5c corresponds to the horizontal width dimension L5 described above, and the dimension L6c corresponds to the vertical width dimension L6.

  Like the example illustrated in FIG. 5, if the watering plate 26 c having one watering hole group 27 c is used, water droplets will land on a denser area, so that a wide water film is formed after landing. It becomes possible to form. That is, since it can be efficiently rinsed with water for a cooking utensil or tableware having a planar shape such as a frying pan or a flat plate, the amount of water used can be suppressed.

As shown in FIG. 6, the watering plate 26 d is provided with a watering hole group 27 d in place of the watering hole group 27 illustrated in FIG. 3. In this case, the number of sprinkling holes is not plural but only one, and the number of sprinkling holes can be about 250, for example.
The dimension L5d in the horizontal direction (left-right direction in the figure) of the region where the water spray holes are provided can be, for example, about 20 mm, and the dimension L6d in the vertical direction (up-down direction in the figure) is, for example, about 65 mm. It can be. Moreover, the dimension L30d of the upper horizontal direction (left-right direction in the figure) can be set to, for example, about 3 mm, and the height L21d of the space where the lower hole is not formed can be set to, for example, about 30 mm.

  If the watering plate 26d provided with the watering hole group 27d is used, water can be discharged over a wide range in the longitudinal direction. The area where the water spray hole group is provided has a shape in which the width gradually becomes narrower than the water spray plate 26c illustrated in FIG. And the amount of water used can be suppressed.

Drawing 7 is a mimetic diagram for illustrating the modification of the watering board provided in a shower spout part.
In addition, Fig.7 (a) is a schematic diagram at the time of seeing the whole watering board from the front, FIG.7 (b) is a schematic diagram for illustrating a watering hole group.
As shown to Fig.7 (a), the watering hole 26e is provided in the watering board 26e. In this case, there are a plurality of sprinkling hole groups, and for example, they can be arranged in 1 row × 12 columns.
The dimension L5e in the horizontal direction (left-right direction in the figure) of the region where the water spray holes are provided can be, for example, about 20 mm, and the dimension L6d in the vertical direction (up-down direction in the figure) is, for example, about 65 mm. It can be. Moreover, the dimension L7e of the space | interval of the vertical direction (up-down direction of a figure) of the water spray hole group 27e can be 5 mm, for example.

Moreover, as shown in FIG.7 (b), for example, a water spray hole group can be made into the flat shape which makes a horizontal direction (left-right direction of a figure) a longitudinal direction, and can be made into a convex shape toward the upper direction of a figure. The dimension L50e in the horizontal direction (left and right direction in the figure) of the sprinkling hole group 27e can be set to, for example, about 20 mm, and the dimension L60e in the vertical direction (up and down direction in the figure) can be set to, for example, about 9 mm. .
In this case, the sprinkling hole group has a flat shape with the horizontal direction as the longitudinal direction. However, since the sprinkling hole groups are arranged in the vertical direction, as shown in FIG. 6, the vertical direction is the longitudinal direction. The same effect as that of the flat sprinkling hole group can be obtained. Water discharged from a plurality of water holes in the same water hole group is integrated into a water film after landing, and further integrated with a water film generated from another water hole group. For this reason, when the sprinkling hole group is arranged vertically, the same effect as the case where the sprinkling holes having a large diameter are arranged in a flat shape having the longitudinal direction as the longitudinal direction can be obtained. That is, as will be described later, in addition to the convex effect, a flat shape effect in which the discharge direction is the longitudinal direction is also added, so that it is possible to form a wide water film even after landing, and washing work Efficiency can be improved.
However, in the case where the interval between the water spray hole groups is extremely large, the water films discharged from the water spray holes of the water spray hole groups are landed and the influence of the formed water films is weakened.

FIG. 8 is a schematic view for illustrating a modified example of the watering plate provided in the shower water discharger.
In addition, Fig.8 (a) is a schematic diagram at the time of seeing the whole watering board from the front, and FIG.8 (b) is a schematic diagram for illustrating a watering hole group.
As shown to Fig.8 (a), the watering board 26f is provided with the watering hole group 27f. In this case, there are a plurality of sprinkling hole groups, which are arranged in two rows, and the upper first row can be arranged in one column and the lower second row can be arranged in two columns.
The dimension L5f in the horizontal direction (left-right direction in the figure) of the region where the sprinkling hole group is provided can be, for example, about 20 mm, and the dimension L6f in the vertical direction (up-down direction in the figure) is, for example, about 30 mm. The dimension L7f of the interval in the vertical direction (vertical direction in the figure) of the sprinkling hole group 27f can be set to 12 mm, for example. In this case, the water spray hole group provided in the water spray plate 26f is arranged in a flat shape having the longitudinal direction (the vertical direction in the figure) as the longitudinal direction.
Moreover, as shown in FIG.8 (b), for example, two rows of water spray holes can be arranged on a concentric circle. For example, the total number of sprinkling holes can be about 30.
As described above, since the sprinkling hole group can be regarded as a sprinkling hole having a large diameter, the sprinkling holes having a large diameter are arranged in a flat shape having a longitudinal direction as a longitudinal direction and projecting upward. The same effect as the case can be obtained. That is, water is discharged in a wide range in the vertical direction, and a wide water film is formed even after landing.
The vertical and horizontal dimensions of the sprinkling hole group are equal, for example, even in the case of a circular shape, the sprinkling hole group is convex and arranged in a flat shape with the longitudinal direction as the longitudinal direction. As shown in FIG. 6, the same effect as that of the flat sprinkling hole group having the longitudinal direction as the longitudinal direction can be obtained.

FIG. 9 is a schematic diagram for illustrating a modified example of the watering plate provided in the shower water discharger. FIG. 9A is a schematic diagram when the entire watering plate is viewed from the front, and FIG. 9B is a schematic diagram for illustrating the watering hole group.
As shown in FIG. 9A, the watering plate 26g is provided with a watering hole group 27g. In this case, there are a plurality of sprinkling hole groups, which can be arranged in, for example, 1 row × 12 columns, and the sprinkling hole diameter of the sprinkling groups in the top seven rows can be set to, for example, about 0.4 mm. The watering hole diameter of the watering hole group in the five rows from the bottom can be set to, for example, about 0.5 mm.
The dimension L5g in the horizontal direction (left-right direction in the figure) of the region where the water spray holes are provided can be, for example, about 20 mm, and the dimension L6g in the vertical direction (up-down direction in the figure) is, for example, about 65 mm. It can be. Moreover, the dimension L7g of the space | interval of the vertical direction (up-down direction of a figure) of the water spray hole group 27g can be 5 mm, for example.
Moreover, as shown in FIG.9 (b), for example, a water spray hole group can be made into the flat shape which makes a horizontal direction (left-right direction of a figure) a longitudinal direction, and can be made into a convex shape toward the upper direction of a figure. The dimension L50g in the horizontal direction (left and right direction in the figure) of the sprinkling hole group 27g can be set to, for example, about 20 mm, and the dimension L60g in the vertical direction (up and down direction in the figure) can be set to, for example, about 9 mm. .
In this case, the sprinkling hole group has a flat shape with the horizontal direction as the longitudinal direction. However, since the sprinkling hole groups are arranged in the vertical direction, as shown in FIG. 6, the vertical direction is the longitudinal direction. The same effect as that of the flat sprinkling hole group can be obtained. Moreover, since the water spray hole diameter of the water spray hole group of the downward direction is large and a larger water droplet collides, an impact force becomes large and it becomes easier to wash. In the case of large water droplets, water splashing may occur, but since the water spray holes with small water spray hole diameters are arranged in the upper direction, it is blocked by the shower spout flow discharged from the upper water spray holes, and the cooker side No longer scatters.

However, it is not necessarily limited to the dimensions illustrated in FIGS. 5 to 9 and can be appropriately changed according to the size of the cleaning object. Further, the number of sprinkling hole groups and the pitch of the sprinkling hole groups are not limited to those shown in the drawings, and can be changed as appropriate. Moreover, a watering hole can be provided along an arbitrary curve, a slope, a refracted straight line, or the like. Further, the shape of the sprinkling holes is not limited to the circular shape illustrated in FIG. 8 and can be any shape.
In addition, by forming the angle of the water spray hole from the center toward the outside, it is possible to obtain water discharge in a wide water discharge range while reducing the size of L5d or L6d. In that case, the size of the water spray plate is reduced. This improves design.

Next, the relationship between the arrangement of sprinkling holes and sprinkling hole groups and the water film formed after landing will be described. For the sake of convenience, this is performed only when the surface on which the water film is formed is a flat surface, but the same effect is exhibited even on a curved surface.
FIG. 10 is a schematic diagram for illustrating a water discharge flow and a water film formed after landing. FIG. 10A is a schematic view illustrating a water film when the horizontal width dimension of the region where the water spray holes are provided is larger than the vertical width dimension, and FIG. 10B is a vertical diagram of the area where the water spray holes are provided. FIG. 10C is a schematic view illustrating a water film when the width dimension is larger than the width dimension. FIG. 10C is a diagram in which the vertical width dimension of the region where the water spray holes are provided is larger than the horizontal width dimension and further upward in the vertical direction. It is a schematic diagram for illustrating the water film in the case of convex shape.
In the case where the central axis directions of the water spray holes coincide with each other, the shape of the water landing portion where the water discharged from the water spray holes lands reflects the shape of the region where the water spray holes are provided. The landing part is a place where water reaches. Therefore, as shown to Fig.10 (a), when the horizontal width dimension of the area | region in which a water spray hole is provided is wider than a vertical width dimension, the horizontal width dimension also becomes large in the shape of the water landing part 45a. Since water is discharged in an oblique direction with respect to the landing surface, the water tends to flow in a substantially traveling direction (upward in the figure) after landing. The surface tension of water tries to change the direction of flow in the direction perpendicular to the direction of travel (left and right in the figure), but in the orthogonal direction (left and right in the figure) Therefore, the flow to go in the orthogonal direction (left-right direction in the figure) is suppressed, and as a result, the spread in the orthogonal direction (left-right direction in the figure) is small.

  As shown in FIG. 10B, when the vertical width dimension of the region where the water spray holes are provided is wider than the horizontal width dimension, the vertical width dimension of the shape of the water landing portion 45b also increases. After landing, water tends to flow in the direction of travel (upward in the figure), but the speed at which the water flows on the landing surface after landing is the speed at which water is discharged from the water spray holes and before landing. Since it is slower than this, water will be concentrated in a substantially traveling direction (upward in the figure). When the water landing part has a flat shape whose longitudinal direction is substantially the traveling direction, since the water is particularly dense, the direction of the traveling direction is changed to the left and right direction of the figure, and as a result, it spreads in the left and right direction of the figure. Becomes larger.

  As shown in FIG. 10C, when the vertical width dimension of the region where the water spray holes are provided is wider than the horizontal width dimension and is convex upward in the vertical direction, the shape of the water landing portion 45c also advances. It is a flat shape with the direction (upward direction in the figure) as the longitudinal direction and is convex. In this case, since it is a flat shape having a substantially traveling direction as a longitudinal direction, the direction of the traveling direction can be changed to the left and right direction as shown in FIG. 10B, but the lateral width is gradually increased. Therefore, since the conversion of the flow direction in the left-right direction becomes more prominent, it further expands in the left-right direction.

FIG. 11 is a schematic diagram for illustrating an outline of a test for examining the area of a water film. 11A is a schematic cross-sectional view for illustrating the state of the test, and FIG. 11B is a schematic plan view seen from the direction of the arrow in FIG.
As shown in FIG. 11 (a), an acrylic plate (vertical 500 mm × horizontal 500 mm) inclined by 15 ° with respect to the counter upper surface 62 is inserted into the sink 30 and receives the water 40 crossing the height of the counter upper surface 62. I did it. And as shown in FIG.11 (b), the shape of the formed water film was measured and the area was calculated | required. Moreover, the shape and area of the water film to be formed were determined by changing the arrangement of the water holes and the group of water holes. In addition, the amount of water discharged is 5.0 L / min, water is discharged, and the total area of the water spray holes is equal for each water spray plate.

FIG. 12 is a table showing the arrangement of watering holes and watering hole groups, the shape of the formed water film, and the area of the water film. FIGS. 12A to 12E are test results for illustrating the watering plate according to the embodiment of the present invention, and FIGS. 12F to 12J are for illustrating a comparative watering plate. It is a test result.
12 (a), (b), (c), and (d) are when water is discharged using the watering plates 26d, 26c, 26e, and 26g shown in FIGS. 6, 5, 7, and 9, respectively. The shape and area of the water film are shown. The shape of the water film shown in FIGS. 12A to 12E is large in the direction orthogonal to the traveling direction (left-right direction in the figure), and the area of the water film is also large. As described above with reference to FIG. 10C, this is because the flow of water in the direction orthogonal to the traveling direction (the left-right direction in the figure) is significantly promoted.
On the other hand, FIG. 12 (f) shows the shape and area of the water film formed when water is discharged using a watering plate in which the watering plate 26d shown in FIG. ing. Since the lateral expansion is suppressed, the area of the water film is small.
12 (g) and 12 (h) show the shape and area of the formed water film when water is discharged using a watering plate having a wide interval between watering hole groups. Since the interval between the water spray holes is too large, the influence of the water droplets that have landed is weakened, so the area of the water film is small.
FIG. 12 (i) shows the shape and area of the water film when water is discharged using a watering plate in which the horizontal width of the region where the watering holes are provided is larger than the vertical width. As described above with reference to FIG. 10A, the flow of water in the direction orthogonal to the traveling direction (left and right direction in the figure) is suppressed, so the area of the water film is small.
FIG. 12 (j) shows the shape and area of the water film when water is discharged using a watering plate in which the vertical width dimension of the region where the watering holes are provided is larger than the horizontal width dimension. As described above with reference to FIG. 10 (b), although the flow of water in the direction orthogonal to the traveling direction (the left-right direction in the figure) is promoted, the width dimension of the region where the water spray holes are provided is equal to the vertical direction. Therefore, it is not possible to form a larger area as a convex shape.

When performing washing operations such as “easy washing” and “careful washing”, it is preferable to use a shower water discharge flow with a wide water discharge range. In this case, as described above, if the shower water discharge flow is formed in a direction inclined with respect to the counter upper surface 62, the view is not obstructed by the faucet 20, so that the cleaning surface is easy to see and the workability is good. Further, if the shower water discharge flow is formed in the inclined direction, the cleaning area in the horizontal plane can be increased. Moreover, since water can be efficiently applied with respect to the full length direction of a washing | cleaning thing, the consumption of water can be suppressed. Moreover, since the protrusion of the system kitchen 10 to the front can be reduced, the user can use the area inside and above the sink 30 widely.
Therefore, when performing the washing operation, it is preferable that the shower water discharge flow is formed such that the shower water discharge flow is formed in a direction inclined with respect to the counter upper surface 62.

In addition, in a faucet having an inclined water discharge part, when the water discharge amount is small, water is transmitted to the faucet body due to the surface tension of the water, and the water flows out of the wash bowl or sink. is there. In general, the shower water discharge unit is used to discharge water over a wide area, so it is considered that there are few scenes where you want to discharge a small amount of water, but at the initial stage of water discharge, just before the end of water stop Since the momentum of the water flow is not sufficient, there is a risk that water may flow along the shower plate.
Therefore, in a faucet having an inclined shower water spouting portion, it is preferable to provide a water transfer preventing portion.

Next, water splash will be described.
13 to 15 are schematic views for illustrating water splashing when water is discharged perpendicularly to the landing surface.
FIGS. 16 to 18 are schematic views for illustrating water splashing when water is discharged from an oblique direction with respect to the water landing surface.
14A and 17A are schematic diagrams for illustrating one water flow, and the other drawings are schematic diagrams for illustrating a plurality of water flows. In this case, it is assumed that the water flow includes a group of granulated water droplets.

  As shown in FIGS. 13 to 15, when the water 40 discharged from the faucet 20 lands vertically to the landing surface 100, the water 40 tends to flow substantially equally in all directions. That is, the water 40 tends to spread over the entire landing surface 100. When there is only one water flow and no obstacle exists in the landing portion, the water 40 is discharged from the landing portion without delay. The water landing part is a place where the water 40 is landed. However, when a plurality of water flows are discharged as in the shower water discharge, in the region 44 between adjacent water flows as shown in FIG. 13 and FIG. Thus, the water 40 is about to flow. As a result, the water 40 loses its flow and tends to stay in place, or its direction is changed upward, and the staying water breaks and tries to splash as water droplets. Even when there is not enough energy to scatter as a water droplet, the water surface in the region 44 is significantly disturbed and the disturbance is propagated to the vicinity. Then, as shown in FIG. 14, when the turbulence is propagated and the water 40 lands on the water surface of the water 40b that has waved from a substantially vertical direction, the turbulence is further amplified, the wave becomes larger, and the deformation exceeds a certain curvature. The water surface is discharged as water droplets to the surroundings.

  In this case, in the region 48 between the adjacent water streams, the splashed water droplets coalesce to form large water droplets, or the water droplets may be split into finer water droplets due to collision. Is even more complicated. Furthermore, the water 40 that has landed perpendicularly to the accumulated water 40b does not cause water splashing in one direction, but causes water splashing in all directions. For this reason, for example, water splashes generated in the region 50 and the region 52 are not canceled out.

On the other hand, as shown in FIGS. 16 to 18, when the water 40 discharged from the faucet 20 lands on the landing surface 100 from an oblique direction, the water 40 is substantially in the direction of the arrow C and arrow D. , Trying to flow in the direction of arrow E. That is, a water film having a flow of water flowing in approximately one direction is formed on the landing surface.
Further, in this case, since the energy directed substantially in the traveling direction is large, most of the landed water 40 tends to flow in the approximately traveling direction. In this case, the flow is directed in the same direction, and the disturbance of the water surface is reduced, so the probability of being released as water droplets is reduced. Moreover, as shown in FIG. 18, when the water 40 is landed on the stable water surface 40b from the oblique direction as shown in FIG. 18, the impact of the collision is alleviated because it is in the same direction as the flow, Since the disturbance of the water surface is suppressed, water splash is reduced. In addition, as shown in FIG. 17B, the water 40 flows so as to merge in approximately one direction (approximately the traveling direction). That is, by discharging the water discharge flow from the water discharge portion in a direction inclined with respect to the water landing surface 100 (for example, the sink bottom surface 34), a flow of water flowing in the water landing surface 100 in approximately one direction can be formed. Even in this case, as shown in FIG. 18, in the region 46 between adjacent water streams, interference may occur, the water surface may be disturbed, and water splash may occur. Is large, the amount of energy toward the direction of interference is small. Therefore, the disturbance of the water surface is reduced and the amount of water splash is reduced.

  Here, according to the knowledge obtained by the present inventors, the next water 40 is landed on the flow of the water 40 generated by landing the water 40 from the oblique direction with respect to the water landing surface 100. Then, water splash can be suppressed. The cause of this is not necessarily clear, but can be considered as follows. That is, the impact at the time of landing can be relieved by making the water 40 land from an oblique direction. Further, even when landing on the water 40 that has already landed, the traveling directions coincide with each other, so that the water surface is hardly disturbed. In addition, water splash can be suppressed, and landing sound can also be suppressed. Moreover, the water flow of one direction can be forcedly produced by making the water 40 land from an oblique direction. Therefore, since the water force can be increased, the amount of the water 40 that remains is small, and the water 40 that has already landed can be prevented from splashing. In this case, in order to reduce water retention and suppress water splash, the landing surface 100 (for example, the sink bottom surface 34) is preferably smooth and substantially horizontal.

Next, the relationship between the inclination angle θ and water splash will be described.
In the water splash test, as in the test for examining the area of the water film described above, as shown in FIG. 11A, an acrylic plate (500 mm long × 500 mm wide) inclined at 15 ° with respect to the counter upper surface 62 is used. It was inserted into the sink 30 to receive the water 40 across the height of the counter upper surface 62. And as shown in FIG.11 (b), the amount of the water droplets which splashed to the area | region 110a in which the water film (water which stays) is not formed was measured. In this case, the discharge time is 150 seconds. Further, the amount of splashed water droplets is measured by changing the inclination angle θ in the range of 0 ° to 90 °. Note that the inclination angle of the acrylic plate of 15 ° takes into account the difference from the landing angle when the discharged water 40 reaches the sink bottom surface 34. That is, it is a correction value for adjusting to the landing angle when the sink bottom surface 34 is landed.

FIG. 19 is a graph for illustrating the relationship between the inclination angle θ and the water splash.
The horizontal axis represents the inclination angle θ, and the vertical axis represents the water droplet amount measured by the water splash test illustrated in FIG. 11 as the water splash amount.

As shown in FIG. 19, according to the water splash test illustrated in FIG. 11, it can be seen that the amount of water splash is substantially constant and large when the inclination angle θ is 30 ° or less. This is because, as described above with reference to FIGS. 13 to 15, water lands on the washing object substantially perpendicularly, so that water stays on the landing surface and the water surface is disturbed.
On the other hand, when the inclination angle θ is 40 ° or more, it can be seen that the water splash monotonously decreases. This is because, as described above with reference to FIGS. 16 to 18, when the water lands on the washing object at an inclination, the water that has landed is discharged without delay, and the disturbance of the water surface is suppressed. .
Note that, when the inclination angle θ is 80 ° or more, the suppression of the disturbance of the water surface reaches its peak, so that the effect of reducing the amount of water splash begins to saturate.
Thereby, when it is 40 degrees or more, it turns out that the reduction effect of water splash becomes large.
In addition, when the tilt angle is increased, the fluctuation of the water discharge trajectory increases when the water flow rate and flow rate are changed, and the work efficiency may be deteriorated. In addition, the water discharge reaches farther. Therefore, since the dimension of the sink 30 in the front-rear direction may be too large, the angle is preferably 80 ° or less.

FIG. 20 is a photograph for illustrating the trajectory of shower water discharge.
The trajectory of water discharge shown in FIG. 20 is when the inclination angle θ is 55 ° and the flow velocity is 2.1 m / sec. In this case, the landing angle α with respect to the sink bottom surface 34 is about 55 °. The flow velocity of 2.1 m / sec is a value that considers the case of performing a general cleaning operation in the system kitchen.

It is a model perspective view for illustrating the system kitchen which concerns on embodiment of this invention. It is a schematic diagram for illustrating the water discharge part of a faucet. It is a schematic diagram for illustrating the watering board provided in a shower water discharging part. It is a schematic diagram for illustrating the shape of the cleaning object. It is a schematic diagram for illustrating the modification of a watering board. It is a schematic diagram for illustrating the modification of a watering board. It is a schematic diagram for illustrating the modification of a watering board. It is a schematic diagram for illustrating the modification of a watering board. It is a schematic diagram for illustrating the modification of a watering board. It is a schematic diagram for illustrating a water discharge flow and a water film formed after landing. It is a schematic diagram for illustrating the outline | summary of the test which investigates the area of a water film, and a water splash test. It is the table | surface which showed the arrangement | sequence of a water hole and a water hole group, the shape of the formed water film, and the area of a water film. It is a schematic diagram for illustrating water splashing when water is discharged perpendicularly to the water landing surface. It is a schematic diagram for illustrating water splash when water is discharged perpendicularly to the landing surface. It is a schematic diagram for illustrating water splashing when water is discharged perpendicularly to the water landing surface. It is a schematic diagram for illustrating water splashing when water is discharged from an oblique direction with respect to the water landing surface. It is a schematic diagram for illustrating water splashing when water is discharged from an oblique direction with respect to the water landing surface. It is a schematic diagram for illustrating water splashing when water is discharged from an oblique direction with respect to the water landing surface. It is a graph for demonstrating the relationship between an inclination angle and water splash. It is a photograph for illustrating the locus of shower water discharge.

Explanation of symbols

10 system kitchen, 20 faucet, 22 rectifying water discharge part, 24 shower water discharge part, 27 sprinkling hole group, 27a sprinkling hole, 30 sink, 34 sink bottom face, 36 sink front face, 38 sink rear face, 60 counter, 62 counter top face, θ Inclination angle

Claims (6)

A faucet equipped with a shower spout,
The shower water spouting portion includes a watering plate having a plurality of watering holes,
The shower water discharger discharges the water discharge in a direction inclined downward with respect to the horizontal,
The plurality of water spray holes are arranged on the water spray plate so that a wide water film is formed when the water discharge flows on the water spray plate.
The plurality of water spray holes are arranged in the water spray plate in a flat shape with a vertical direction as a longitudinal direction,
The faucet according to claim 1, wherein the faucet is disposed so as to protrude upward.
The plurality of sprinkling holes form a plurality of sprinkling hole groups composed of a set of the sprinkling holes,
In each of the sprinkling hole groups, the sprinkling holes are arranged in a convex shape upward.
2. The faucet according to claim 1, wherein a plurality of the water spray hole groups are arranged on the water spray plate in a flat shape having a vertical direction as a longitudinal direction.
The plurality of sprinkling holes form a plurality of sprinkling hole groups composed of a set of the sprinkling holes,
A plurality of water spray hole groups are arranged in the water spray plate in a flat shape with the vertical direction as the longitudinal direction,
The faucet according to claim 1, wherein the faucet is disposed so as to protrude upward.
The plurality of water holes include a first water hole and a second water hole,
The second watering hole has a larger diameter than the first watering hole,
The faucet according to any one of claims 1 to 4, wherein the second watering holes are disposed more on the lower side than the central portion in the vertical direction of the watering plate.
Sink and
The faucet according to any one of claims 1 to 5, wherein the faucet is arranged to discharge a water discharge flow to the sink.
System kitchen equipped with.

Images