JP5828363B2 - Kitchen faucet - Google Patents

Description

  The present invention relates to a kitchen faucet for discharging water to a sink provided in a kitchen.

  Conventionally, various kitchen faucets for discharging water to a sink provided in the kitchen have been proposed. As an example, a kitchen faucet has been proposed that sprays water over a wide range of washed items in order to quickly clean dishes, cooking utensils, ingredients, and the like (see, for example, Patent Document 1 and Patent Document 2 below). . The kitchen faucets described in Patent Documents 1 and 2 are designed to achieve a wide range of water discharge from a wide water discharge portion, and are discharged substantially vertically downward from a water discharge pipe disposed substantially parallel to the upper surface of the counter. In addition, the water discharge pipe projects from the upper part or the front part of the sink.

JP 2000-27248 A JP 2000-96642 A

  An object of the present invention is to provide a kitchen faucet for discharging water to a sink provided in a kitchen, which is easy to use for various washing operations in the sink.

  In order to solve the above problems, a kitchen faucet according to the present invention is a kitchen faucet provided in a kitchen, and in an installation state in which the attachment portion is attached to the attachment surface of the kitchen and the attachment portion is attached to the attachment surface. An upright portion extending upward from the mounting portion and toward the front side where the user is present, and a shower water discharge portion provided on the upright portion and having a plurality of water spray holes for discharging a shower water flow. The shower water discharge portion is configured such that the outer peripheral shape of the shower water flow when passing through the height position of the mounting surface is a vertically long shape in the front-rear direction longer than the left-right direction, and the shower water flow after water discharge The outer peripheral shape is configured such that the front-rear direction is wider than the left-right direction.

  According to the present invention, it is possible to provide a kitchen faucet that is easy to use for various washing operations in a sink.

It is a schematic diagram showing the system kitchen concerning embodiment of this invention. It is a side surface schematic diagram showing the state where shower water is discharged from the kitchen faucet concerning this embodiment. It is a schematic diagram showing the operation | work of the user with a physique difference. It is a schematic diagram which illustrates the horizontal work area of an adult woman. It is a side surface schematic diagram showing the state where rectified water is discharged from the kitchen faucet concerning this embodiment. It is a schematic diagram for demonstrating the area | region above the sink of the system kitchen concerning this embodiment. It is a schematic diagram showing the kitchen faucet concerning this embodiment, Drawing 7 (a) is a front schematic diagram which looked at the kitchen faucet from the front, and Drawing 7 (b) is AA of the kitchen faucet. It is a cross-sectional schematic diagram showing a cross section, FIG.7 (c) is a cross-sectional schematic diagram showing the BB cross section of the kitchen faucet. FIG. 8A is a schematic diagram illustrating a water spray plate for shower water, FIG. 8A is a schematic front view of the water spray plate viewed from the front, and FIG. 8B is a schematic diagram illustrating a water spray hole group. is there. It is a schematic diagram showing the examination conditions of the cleaning effect by slant water discharge. It is a schematic diagram showing the examination result of the washing effect in rectified water. It is a schematic diagram showing the examination result of the cleaning effect in shower water. It is a schematic diagram for demonstrating the washing | cleaning effect by slanting water discharge, Fig.12 (a) is a schematic diagram showing the case where water is discharged diagonally with respect to a washing | cleaning thing, FIG.12 (b) is a washing | cleaning thing. It is the schematic diagram showing the case where it discharged vertically with respect to it. FIGS. 13A and 13B are schematic diagrams for explaining the cleaning effect of the rectified water, FIG. 13A is a schematic diagram of the rectified water viewed from the front, and FIG. 13B is a schematic diagram of the rectified water viewed from the top. It is. FIG. 14A is a schematic diagram for explaining the cleaning effect of shower water, FIG. 14A is a schematic diagram of the shower water viewed from the front, and FIG. 14B is a schematic diagram of the shower water viewed from the top. It is. FIG. 15A is a schematic diagram for explaining the influence of the cleaning effect due to the inclination of the cleaning object. FIG. 15A is a schematic diagram when water is discharged obliquely with respect to the upper surface of the sink, and FIG. It is a schematic diagram in the case of discharging water perpendicularly to the upper 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 perpendicularly to the water 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 schematic diagram for illustrating the outline of a water splash test. It is a graph for demonstrating the relationship between an inclination angle and water splash. It is the schematic diagram which looked at the washing field concerning this embodiment from the upper surface. It is a schematic diagram showing the operation | work of the user with a physique difference which concerns on a comparative example. It is typical sectional drawing which shows the modification which provides a watering hole in a watering board. It is a figure which shows an example of the water spray hole pattern formed with the some water spray hole. It is a figure which shows an example of the water spray hole pattern formed with the some water spray hole. It is a figure which shows an example of the water spray hole pattern formed with the some water spray hole. It is a figure which shows an example of the water spray hole pattern formed with the some water spray hole. It is a figure which shows the watering pattern at the time of watering from the watering board which has the watering hole pattern of FIG. 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 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 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 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.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  Drawing 1 is a mimetic diagram showing a system kitchen provided with a kitchen faucet concerning an embodiment of the invention. The system kitchen 10 includes a kitchen faucet 20 and a sink 30. The kitchen faucet 20 has a rectifying spout 22 and a shower spout 24. The sink 30 has a sink upper surface 32 and a sink bottom surface 34. The sink 30 may have a cooking table (not explicitly shown in FIG. 1) extending to at least one of the left side and the right side of the sink upper surface 32. Here, “rectified water discharge” means a water discharge form with substantially one water flow, and “shower water discharge” means a water discharge form with multiple water flows. Although not clearly shown in FIG. 1, a changeover switch is provided as water discharge switching means for switching between water discharged from the rectifying water discharge port 22 and water discharged from the shower water discharge port 24.

  The kitchen faucet 20 is provided on the back side of the sink 30 as viewed from the user, that is, behind the system kitchen 10 and on the counter upper surface 62. The lower part of the kitchen faucet 20, that is, the vicinity of the part attached to the counter upper surface 62 is provided substantially perpendicular to the sink upper surface 32, but the upper part (standing part) above the predetermined dimension is It is inclined with respect to the sink upper surface 32. The inclination angle is, for example, about 60 degrees with respect to the sink upper surface 32. However, this inclination angle can be changed as appropriate. Further, an installation surface (not shown) having a certain angle is provided between the sink upper surface 32 and the sink rear surface 38 (substantially ridgeline portion), and the kitchen faucet 20 is mounted vertically on the installation surface. There is a method of supplying water discharge. Furthermore, it has a certain distance in the horizontal direction from the oblique installation surface to the sink upper surface 32, and then has a predetermined dimension in the vertical direction with respect to the sink upper surface 32. There is a method of supplying oblique water discharge by the kitchen faucet 20 having a shape inclined with respect to 32. The shape of the kitchen faucet can supply oblique water discharge even when the surface for attaching the kitchen faucet to the sink is different, and can provide the effect of the present invention to any sink. . Moreover, it has the effect of this invention by setting so that discharged water may pass through a predetermined range diagonally with respect to any method.

  Accordingly, the rectifying water discharge port 22 and the shower water discharge port 24 are provided toward the sink 30 while being inclined with respect to the sink upper surface 32 and the sink bottom surface 34. Therefore, the water discharged from the rectifying water discharge port 22 and the shower water discharge port 24 is discharged obliquely with respect to the sink upper surface 32 and the sink bottom surface 34. In the present specification, the term “water” includes “hot water”.

  FIG. 2 is a schematic side view illustrating a state in which shower water is discharged from the kitchen faucet according to the present embodiment. As shown in FIG. 2, when shower water is discharged, the water 40 is discharged from the shower outlet 24. And the length L15 of the horizontal direction component of the water discharging direction in which the water 40 is discharged from the shower outlet 24 is set larger than the length L16 of the vertical direction component. In addition, the water discharge direction means the traveling direction of water immediately after being discharged from the water discharge port, and coincides with the central axis direction of the hole provided in the water discharge port. By performing such setting, the trajectory (streamline) of water until the water 40 discharged from the shower spout 24 reaches the water becomes longer, and the area where the user touches the water discharge becomes larger. That is, for example, a tall user can reach the cleaning area close to the rear surface 38 of the sink and perform the cleaning operation, so that the hands and arms are not cramped and the cleaning operation can be performed. For example, a user with a short height can reach the washing area close to the sink front surface 36 and perform the washing operation without the burden of the waist and arms without being difficult to reach the hands. Can do. In this way, it is possible to cause a user having a physique difference to perform a washing operation from the same position. By discharging water in an oblique direction, an effect of reducing water splash in the washing operation can be expected.

  As described above, the shower water is discharged in an oblique direction with respect to the counter upper surface 62 and the sink bottom surface 34, and the shower water outlet is provided with a plurality of water spray holes in a direction orthogonal to the water discharge direction. As shown, wide shower water is provided when viewed from the side. For this reason, in addition to being able to spray water over a wide range of washing objects, the washing operation is uniformly made more efficient for users with physical differences. That is, as shown in FIG. 3, for example, a user who is tall and a user who is short are different in the position of touching the water discharge when reaching for water discharge while maintaining a comfortable posture. Since the oblique and wide water discharge is performed, the washing operation can be performed in the same position and in the same posture, and the washing operation of many users can be made efficient.

  The length L1 in the front-rear direction when the shower water is discharged and passes through the sink upper surface 32 depends on the vertical width of the sprinkling hole group and the flow rate of the water 40, but for many users, However, from the standpoint of improving the efficiency of the cleaning operation, water is discharged over the entire surface of cooking utensils, hands, or hands with washing objects. It is preferable to set it in consideration of hitting. By performing such a setting, it becomes possible to spray water on the entire surface of the cleaning object all at once. Therefore, it is possible to reduce the operation of moving the cleaning object and spraying water on the entire surface. Therefore, it is possible for the user to reduce the operation such as finely shaking in the front-rear direction only by presenting the cleaning object, and the washing operation is made efficient. The width in the front-rear direction can be discharged all at once, taking into account, for example, the average value of the knife blade length, the average length of the short side of the cutting board, and the size of the adult hand. If the length is set to a long length, that is, about 170 mm, the hand and the knife can be quickly washed. However, if the wash water is spouted for approximately half the length of the entire wash, and the remaining half is washed away by running water flowing over the wash, the amount of water used can be reduced. The cleaning effect can also be improved.

  Further, when the shower water is discharged and passes through the upper surface 32 of the sink, it is preferable that the width in the left-right direction is similarly wide because water can be discharged over a wide range at a time and the washing operation is made efficient. However, the most frequently washed items in “easy washing” are the user's hand and kitchen knife, and taking into consideration that the hand should be put out for water discharge without any physical load, Although the length of the cleaning object becomes long, the width in the left-right direction is relatively short. Therefore, if water is discharged widely in the left-right direction, it will land directly on the bottom surface of the sink without being touched, and water will flow unnecessarily. For this reason, it is preferable that the width in the left-right direction has a length of about 20 mm.

  It is preferable that at least the water 40 a on the upper side of the water discharged from the shower outlet is landed on the sink bottom surface 34 on the sink front surface 36 side rather than the center 35 between the sink front surface 36 and the sink rear surface 38. From the shower spout, water is discharged obliquely with respect to the upper surface 32 of the sink, and by allowing water to reach the sink bottom surface 34 on the near side as seen from the user, it is easy to reach more users, It is possible to perform the cleaning operation in a posture with no burden. Moreover, it is possible to reduce water splashing that occurs when the water reaches the sink bottom surface 34 at an angle. Since the water 40 is landed obliquely with respect to the sink bottom surface 34, the kinetic energy of the water is dispersed in a direction parallel to and perpendicular to the sink bottom surface. The vertical component can be a driving force for water splash, but since it is dispersed, the energy component in the vertical direction is reduced and water splash is reduced. In addition, the parallel component promotes the discharge of water from the landing part and works to stabilize the water surface of the water film generated in the landing part, so that the disturbance of the water surface is suppressed and water splash is reduced. .

  On the other hand, in a general water faucet, water is discharged from a direction substantially perpendicular to the sink upper surface 32. That is, since the water lands in a direction substantially perpendicular to the sink bottom surface 34, the kinetic energy component in the vertical direction is large, and the kinetic energy of the splashed water is also large. In addition, it is difficult to discharge the water surface of the landing portion, and the water surface is greatly disturbed, so that water splash is likely to occur. The relationship between the inclination angle of the shower spout and the amount of water splash will be described later.

  Here, the cleaning region will be described with reference to the drawings. The cleaning area means an area where the user touches water discharge. If a cleaning region is set in a space that can be reached by a user with a physical difference without any physical burden, the user can perform a washing operation without a physical burden. FIG. 4 is a schematic view illustrating the horizontal work area of an adult woman. The inventor is investigating the horizontal work area of an adult woman who frequently uses the system kitchen.

  In the horizontal work area shown in FIG. 4, the solid line represents the range that can be reached by reaching out, and the dotted line represents the range in which the work can be done easily by bending the elbow. According to this, it can be seen that an adult woman can easily work by bending the elbow if it is within a range of about 30 cm from the front end 64 of the counter upper surface 62 toward the sink rear surface 38. Moreover, even if it is outside the range of about 30 cm from the front end of the sink 30 toward the sink rear surface 38, it can be seen that the adult woman reaches out by reaching within the range of about 50 cm. These ranges are derived from the physique such as upper limb length, elbow / fingertip distance, and acromion height. For example, these ranges are large in an adult male, and these ranges are narrow in an elderly female.

  Therefore, as shown in FIG. 3, the cleaning region 42 is set so that the center of the sink 30 and the point where the sink upper surface 32 intersects is set as the center, and the water discharge is set to pass obliquely through the cleaning region 42. For example, it is possible to allow a user having a physique difference to perform a washing operation without burdening the body. That is, for example, in the case of an adult male, the shoulder position is higher than that of an adult woman, and the length of the upper limb is also longer than that of an adult woman, so if you stand in the same position and take the same posture, Compared to women, it is above and behind. On the other hand, in older women, the shoulder position is lower than in adult women, and the length of upper limbs is also shorter than in adult women. Therefore, the reachable position is lower and forward than an adult female. By discharging the water 40 diagonally, it is possible to have users with different physiques stand at the same position and perform the washing work in the same posture, and by discharging water to a space free of the body, many workers It is possible to make the washing work easier.

  FIG. 5 is a schematic side view showing a state in which rectified water is discharged from the kitchen faucet according to the present embodiment. As shown in FIG. 5, when the rectified water is discharged, the water 40 is discharged from the rectified water discharge port 22. As described above, the water 40 is discharged obliquely with respect to the sink bottom surface 34. Further, the rectifying spout 22 is set so that the length L17 of the horizontal component in the water discharging direction discharged from the rectifying spout is larger than the length L18 of the vertical component, as in the case of the shower spout. ing. In other words, even in the case of rectified water, the setting of this way makes it possible to lengthen the trajectory (streamline) of the water 40 from when the water is discharged until it reaches the sink, so that there is a difference in use. It is possible to improve the efficiency of the washing operation uniformly for the person.

  It is preferable that the water 40 be discharged obliquely from the rectifying water discharge port 22 with respect to the sink upper surface 32 and land on the sink bottom surface 34 on the front side of the center 35 of the sink front surface 36 and the sink rear surface 38. That is, by allowing the sink bottom surface 34 on the near side as seen from the user to land, it is easy to reach for more users and there is no burden on the body, as in the case where water is discharged from the shower outlet. The cleaning operation can be performed in the posture. Moreover, it is possible to reduce water splashing that occurs when the water reaches the sink bottom surface 34 at an angle.

  Further, the rectifying water outlet 22 is disposed above and in front of the shower water outlet 24. However, the rectifying water discharge port 22 is disposed behind the cleaning region 42. For this reason, since the washing | cleaning area | region 42 is not obstruct | occluded by the kitchen faucet 20, it becomes easy to confirm the washing | cleaning state of a washing | cleaning thing, and washing | cleaning operation is made efficient.

  FIG. 6 is a schematic diagram for explaining an area above the sink of the system kitchen according to the present embodiment. As described above, the kitchen faucet 20 of the present embodiment has the rectifying water discharge port 22 and the shower water discharge port 24 facing the sink 30, and the water discharge port is located above the upper surface of the sink and at the center 35 of the sink (center in the depth direction). ) It is installed behind. By being installed in this way, the user can use the area 54 in and above the sink 30 widely. That is, even when, for example, a frying pan or a large two-handed pan is washed, the frying pan and the pan can be handled without contacting the kitchen faucet 20. Further, the kitchen faucet 20 does not block the view of the region 54. Therefore, the user does not feel the kitchen faucet 20 in the way when washing the washing utensils such as cooking utensils, foods, and hands.

  FIG. 7 is a schematic diagram showing the upper part 201 (standing part) of the kitchen faucet 20 according to the present embodiment, and FIG. 7A is a schematic front view of the upper part 201 of the kitchen faucet as viewed from the front. 7 (b) is a schematic cross-sectional view showing the AA cross section of the upper part 201 of the kitchen faucet, and FIG. 7 (c) shows the BB cross section of the upper part 201 of the kitchen faucet. It is a cross-sectional schematic diagram to represent.

  The kitchen faucet 20 has a rectifying spout 22 at an upper portion 201 and a shower spout 24 at a lower portion of the rectifying spout 22. The kitchen faucet 20 further includes a rectifying water distribution pipe 23 for guiding the water 40 to the rectifying water outlet 22 and a shower water distribution pipe 25 for guiding the water 40 to the shower water outlet 24. .

  The rectifying water distribution pipe 23 passes toward the left side of the kitchen faucet 20 and is connected to the left side and the lower part of the rectifying water discharge port 22. On the other hand, the shower water distribution pipe 25 is connected to the lower end of the shower spout 24 through the right side of the kitchen faucet 20.

  The horizontal width of the kitchen faucet 20 is preferably set according to the size of the cleaning object. For example, the objects to be washed are generally hands, cooking utensils such as knives and pans, and foods. However, if the left and right directions are set wide, extra water will be used when washing small items. On the other hand, if the width in the left-right direction is set to be narrow, it is necessary to move the hand to clean the large object. Therefore, in the present embodiment, in the simple washing, the width in the left-right direction is set with respect to the simple washing of hands, knives, etc., so that the washing can be performed simply by presenting the washing item. For example, by setting the thickness to about 40 mm, it is possible to clean the hand and the knife portion without moving the hand in the left-right direction. However, these dimensions are not limited to this, and can be changed as appropriate.

  FIG. 8 is a schematic view illustrating a water spray plate for shower water discharge, FIG. 8 (a) is a front schematic view of the water spray plate viewed from the front, and FIG. 8 (b) illustrates a water spray hole group. It is a schematic diagram to do. The watering plate 26 shown in FIG. 8 is fixed to the shower spout 24 of the kitchen faucet 20. The water spray plate 26 has a water spray hole group 27, and the water spray hole group 27 has a water spray hole 27 a for discharging water 40 as shower water. The sprinkling hole group 27 is arranged in 5 rows × 2 columns, for example. Moreover, the watering holes 27a are arranged in two rows concentrically, for example, and a total of about 30 watering holes 27a are provided. The water 40 is discharged from each sprinkling hole 27a and reaches the sink bottom surface 34 as shower water.

  As described above, in the present embodiment, even in the shower water discharge, by performing water discharge in a water discharge trajectory that passes through the cleaning region that is the water discharge passage region and reaches the front of the sink 30, the same as the rectified water discharge Moreover, it becomes possible to use water discharge near the user and to perform water discharge capable of reducing water splash. Therefore, in order to allow the shower water to pass through the cleaning region and to land in front of the sink 30, the shower water can be discharged obliquely downward from the water outlet. Here, when the shower water discharge is performed in a substantially horizontal direction or obliquely upward as with the rectified water discharge, since the shower water discharge has a higher flow rate of water from the water outlet than the rectified water discharge, the shower water discharge is substantially horizontal or obliquely upward. If the water is discharged, the horizontal flight distance is secured due to the variation in the flow rate due to the installation location or the variation of the water pressure, and there is a possibility that the water will protrude from the sink. Therefore, in order to discharge water so as to be able to land on the front side of the sink 30 through the cleaning area without depending on the external environment such as the installation location of the kitchen faucet 20, the user can discharge water obliquely downward. However, it is possible to use the rectified water spouting without greatly extending the hand, and to land obliquely with respect to the sink bottom surface 34, so that it is possible to reduce the splash of water at the time of landing.

  In addition, as a method of discharging the shower water discharge obliquely downward, the water discharge from the water spray plate is inclined by tilting the water spray plate or the kitchen faucet 20 equipped with the water spray plate so that the opening direction of the water spray plate is obliquely downward. It can be directed downward. Moreover, as another method, it is also possible to discharge the shower water discharge obliquely downward without significantly tilting the kitchen faucet 20 by processing the opening direction of the water spray plate to be inclined with respect to the water spray plate. By the method as described above, it is possible to realize the kitchen faucet 20 capable of discharging shower water discharge obliquely downward while securing a configuration for discharging rectified water discharge substantially horizontally or obliquely upward.

  With the configuration as described above, the amount of movement that uses the user's water by drawing a water discharge trajectory in which a part of the water discharged from the kitchen faucet 20 passes through the cleaning region and reaches the front of the sink 30. It is possible to suppress water splashing to the user and the vicinity of the kitchen device while greatly reducing the amount of water. In addition, by setting the water discharge direction of the rectified water discharge or shower water discharge, it is possible to supply water discharge suitable for work such as water pumping or water discharge that performs cleaning suitable for a wide range.

  As described above, the kitchen faucet 20 of the present embodiment is a kitchen faucet for discharging water to the sink 30 provided in the kitchen, and the shower spout 24 for discharging water to the sink 30, The shower spout 24 is provided, and an upper portion 201 (standing portion) formed so as to rise from the horizontal direction to the vertical direction is provided. The upper portion 201 (standing portion) is such that the shower spout 24 is located on the back side of the center 35 (depth center) of the sink 30, and the water discharged from the shower spout 24 is the center 35 (depth) of the sink 30. Standing up to land on the near side of the center of the direction). Further, the water discharged from the shower water discharge port 24 is a shower-like shower water discharge, which is discharged so that the outer shape around the water discharge direction is vertically long along the depth direction of the sink 30, and the sink is formed at the bottom surface of the sink 30. It lands on a vertically long region along the depth direction of 30. In the present embodiment, all of the water discharged from the shower spout 24 is configured to land on the nearer side than the center 35 (center in the depth direction) of the sink 30, but at least a part of the water is discharged. It is preferable to be configured to land on the near side of the center 35 of the sink 30, and it is also preferable that about half of the water is landed on the near side of the center 35 of the sink 30. Moreover, since the momentum of the water discharged from the shower spout 24 is influenced by the water supply pressure, the kitchen faucet 20 of the present embodiment is configured to draw the trajectory of water discharge as described above at a predetermined water supply pressure. Is.

  The kitchen faucet 20 described above is configured such that the shower spout 24 is provided in the upper portion 201 that is a standing portion, and the shower spout 24 is located on the back side from the center 35 (center in the depth direction) of the sink 30. Therefore, when the object to be cleaned is taken in and out of the sink 30, the area around the shower spout 24 does not get in the way, and it does not get in the way visually. Further, since the shower spout 24 is located on the back side of the center 35 (the center in the depth direction) of the sink 30, there is no obstacle in the region above the sink 30 in the vicinity of the center 35 (the center in the depth direction) of the sink 30. In addition, since it is not necessary for the user to move around the obstacle during the cleaning operation, the distance that the hand moves during the cleaning operation can be reduced. Since the water discharged from the shower spout 24 provided in the upper part 201 (standing part) is configured to land on the near side of the center 35 (the center in the depth direction) of the sink 30, the cleaning operation Can be performed in a natural posture without difficulty. If water is passed through the area where a standard height user can perform the cleaning work in the most natural posture, the water is discharged so that it gradually falls from the back side to the near side. For users with height higher than the standard, cleaning work can be performed in a slightly higher area than the back side, and for users with height lower than the standard, the area slightly lower than the front side. The cleaning operation can be performed in Therefore, the cleaning operation can be performed in a natural posture not only for a user with a standard height but also for a user with a height higher than the standard or a user with a height lower than the standard. Further, the water discharged from the shower water discharge port 24 is a shower-like shower water discharge, and is discharged so that the outer shape around the water discharge direction is vertically long along the depth direction of the sink 30. In order to land on a vertically long region along the depth direction of the sink, it is possible to provide a vertically long shower water discharge even when water is applied to an object to be cleaned in the cleaning region above the sink or in the cleaning region above the sink. Can do. Therefore, in the sink bottom surface 34 and the object to be cleaned, it is possible to provide a vertically long shower water discharge that easily spreads in the horizontal direction, and the user side of the water discharged on the sink bottom surface 34 or the object to be cleaned is provided. Can suppress water splashing.

  Moreover, the spout in the kitchen faucet 20 of this embodiment is comprised by the shower spout 24 which discharges shower spout, and the rectifier spout 22 which discharges rectified water, and is discharged from the shower spout 24 and rectified spout. A change-over switch (not shown) is provided as water discharge switching means for switching between water discharge from the water port 22.

  As described above, the rectifying water discharge port 22 for discharging the rectified water separately from the vertically long shower water discharge is provided, and a changeover switch (a water discharge switching means for switching between the water discharged from the shower water discharge port 24 and the water discharged from the rectified water discharge port 22 ( (Not shown), the rectification can be discharged only from the rectification water discharge port 22, and the water discharge concentrated in a narrow region can also be provided. Accordingly, it is possible to comfortably perform operations such as pumping water into a small-diameter container, which is difficult to handle only with shower water discharge.

  Next, a preliminary study performed by the present inventors will be described with reference to the drawings. FIG. 9 is a schematic diagram showing conditions for examining the cleaning effect by oblique water discharge. The present inventors have conducted a preliminary study on the cleaning effect when water is discharged obliquely. First, a sample is prepared in which a plate 100 having the same size as the average palm of an adult female is fixed to the substantial tip of the fixing rod 102. On the surface of the plate 100 opposite to the side fixed to the fixing rod 102, pseudo dirt is applied assuming dirt attached to a knife or the like.

  Subsequently, an angle L14 formed by the plate 100 and the fixing rod 102, the sink upper surface 32, and the sink bottom surface 34 is about 15 to 45 degrees with the surface of the plate 100 coated with pseudo-dirt facing upward. In this state, the fixing rod 102 is fixed. This is because the position of the kitchen faucet 20 exists below the position of the user's shoulder, so when the user puts out a wash such as a kitchen knife toward the kitchen faucet 20, the wash is This is because the state is inclined with respect to the sink upper surface 32 and the sink bottom surface 34. According to the investigation by the present inventor, the average value of the angle of, for example, a kitchen knife or the like that six subjects with a height of 162 ± 2 cm put out to the kitchen faucet 20 is about 32 degrees with respect to the upper surface 32 of the sink. I know.

  The fixed bar 102 is fixed so that the vertical position of the plate 100 is substantially the same height as the sink upper surface 32. Subsequently, water is discharged toward the center 100 a of the plate 100. At this time, water discharge is performed in a state where the water discharge direction at the water discharge port has two inclination angles of about 90 degrees and about 45 degrees with respect to the sink upper surface 32 and the sink bottom surface 34, respectively. The flow rate of the discharged water is set to about 5.0 L / min and about 3.0 L / min at each of the two inclination angles. That is, the cleaning effect is examined under the conditions of four combinations of two inclination angles and two water discharge flow rates.

  Further, in each case of the rectified water and the shower water, the above-described four combinations are examined. The evaluation method is a method for visually observing how the pseudo dirt applied to the surface of the plate 100 is dropped.

  FIG. 10 is a schematic diagram showing the examination result of the cleaning effect in the rectified water. Moreover, FIG. 11 is a schematic diagram showing the examination result of the cleaning effect in shower water. As in the case of the rectified water shown in FIG. 10, when the water discharge flow rate is about 5.0 L / min, the inclination angle of the water discharge is about 45 degrees and about 90 degrees. In this case, almost the entire pseudo-soil 104 could be cleaned. However, it takes about 3 seconds when the inclination angle is about 45 degrees, and about 9 seconds when the inclination angle is about 45 degrees. Thus, it has been found that the cleaning effect is better when water is discharged obliquely with respect to the sink upper surface 32 and the sink bottom surface 34.

  On the other hand, when the water discharge flow rate is about 3.0 L / min, substantially the whole pseudo fouling 104 can be washed when the water discharge inclination angle is about 45 degrees, but the water discharge inclination angle is about 90 degrees. When the temperature was about the same, substantially the entire pseudo-soil 104 could not be washed. Therefore, it was found that even when the water discharge flow rate is small, it is better to discharge water obliquely with respect to the sink upper surface 32 and the sink bottom surface 34 as in the case where the water discharge flow rate is high.

  Further, when the inclination angle is about 45 degrees, even the small amount of water discharge with a water discharge flow rate of about 3.0 L / min can wash substantially the entire pseudo-soil 104. However, it was found that the larger the water discharge flow rate, the shorter the time required for cleaning substantially the whole pseudo-soil 104, and the better the cleaning effect.

  As shown in the examination result in the case of shower water shown in FIG. 11, when the water discharge flow rate is about 5.0 L / min, substantially the entire pseudo-soil 104 is washed when the inclination angle of the water discharge is about 45 degrees. However, when the inclination angle of the water discharge was about 90 degrees, it was not possible to clean the substantially entire pseudo-soil 104. On the other hand, even when the water discharge flow rate was about 3.0 L / min, when the inclination angle of the water discharge was about 45 degrees, it was possible to wash substantially the entire pseudo-soil 104, but the inclination angle of the water discharge was about 90 degrees. When the temperature was about the same, substantially the entire pseudo-soil 104 could not be washed. Therefore, in the case of shower water, it has been found that, similarly to the case of rectified water, it is better to discharge water obliquely with respect to the sink upper surface 32 and the sink bottom surface 34.

  In addition, the time until the substantially entire pseudo-soil 104 can be washed is about 9 seconds when the water discharge flow rate is about 5.0 L / min, whereas the water discharge flow rate is about 3.0 L / min. When it was about min, it took about 20 seconds, and it was found that the higher the water discharge flow rate, the better the cleaning effect.

  Furthermore, in the case where the inclination angle is about 45 degrees and the water discharge flow rate is about 5.0 L / min, substantially the entire pseudo-soil 104 is washed when it is rectified water and when it is shower water. Comparing the time until it is possible, it is about 3 seconds and about 9 seconds, respectively. Therefore, it was found that the rectified water has a better cleaning effect.

  FIG. 12 is a schematic diagram for explaining the cleaning effect by oblique water discharge, FIG. 12 (a) is a schematic diagram showing a case where water is discharged obliquely with respect to the cleaning object, and FIG. It is a schematic diagram showing the case where water is discharged perpendicularly to the washed object. As shown in FIG. 12A, when water 40 is discharged obliquely with respect to the plate 100, when the water 40 reaches the plate 100, the collision surface between the plate 100 and the water 40 is changed. Since it becomes wider, the water 40 spreads over a wide area on the surface of the plate 100.

  On the other hand, as shown in FIG. 12B, when water 40 is discharged vertically to the plate 100, the collision surface between the plate 100 and the water 40 is discharged obliquely. The water 40 will only spread over a narrower area of the surface of the plate 100.

  Therefore, a wider range of dirt 104 can be washed when the water 40 is discharged obliquely with respect to the plate 100. Thereby, the water discharge from diagonally has the effect that the washing | cleaning time can be shortened, and the effect that it can wash | clean with a small amount of water discharge. That is, since the cleaning effect can be improved, the user can reduce the amount of hand movement during the washing operation.

  FIG. 13 is a schematic diagram for explaining the cleaning effect of the rectified water. FIG. 13A is a schematic view of the rectified water viewed from the front. FIG. 13B is a schematic view of the rectified water from the top. It is the schematic diagram which looked. FIG. 14 is a schematic diagram for explaining the cleaning effect of shower water, FIG. 14 (a) is a schematic view of the shower water viewed from the front, and FIG. 14 (b) is a diagram of the shower water. It is the schematic diagram seen from the upper surface. 13 and 14 exemplify a case where water 40 is discharged vertically with respect to the plate 100.

  Since the flow rate of the rectified water is large per grain, the force when the water 40 collides with the plate 100 is larger. Therefore, as illustrated in FIG. 12B, the rectified water particles spread over a wide range of the plate 100 and the dirt 104. Therefore, it is considered that the force that causes the dirt 104 to flow down due to the collision force against the dirt 104 of the rectified water and the manner in which the rectified water spreads over a wide range is greater.

  On the other hand, the shower water has a smaller flow rate per grain than the rectified water, and therefore the force when the water 40 grains collide with the plate 100 is smaller. Also, there is an interval between each grain, and even if each grain tries to spread over a wide range, each grain interferes with each other. Does not spread. Therefore, in consideration of the collision force to the dirt 104 of the shower water and the way in which it spreads, it is considered that the force for flowing the dirt 104 is larger in the rectified water. For these reasons, when the rectified water and the shower water are compared, the rectified water is considered to have a better cleaning effect.

  FIG. 15 is a schematic diagram for explaining the influence of the cleaning effect due to the inclination of the cleaning object. FIG. 15A is a schematic diagram when water is discharged obliquely with respect to the upper surface of the sink. ) Is a schematic view when water is discharged perpendicularly to the upper surface of the sink.

  As shown in FIG. 15A, when the water discharged obliquely with respect to the sink upper surface 32 collides with the inclined plate 100, the water 40 in the region 110 is separated from the plate 100 and the dirt 104 against the gravity. Trying to go up. This is because the inertial force directed upward of the plate 100 and the dirt 104 works on the water 40.

  On the other hand, as shown in FIG. 15B, when the water discharged perpendicularly to the sink upper surface 32 collides with the inclined plate 100, the water 40 in the region 112 is separated from the plate 100 and dirt against the gravity. Although it tries to rise above 104, the flow rate of the water 40 rising upward is small compared to the case where water is discharged obliquely with respect to the upper surface 32 of the sink. This is because the inertial force directed downward is larger than the inertial force directed upward of the plate 100 and the dirt 104 in consideration of the inertial force acting on the water 40.

  For these reasons, when the plate 100 is inclined, the water 40 spreads over a wide range of the plate 100 and the dirt 104, so that the cleaning effect is considered to be improved. Therefore, considering the height of the user's shoulder and the height of the kitchen faucet 20, when the user performs a washing operation, the washing object is often inclined, so the actual use situation is considered. Then, it is considered that the cleaning effect is improved by discharging water obliquely with respect to the sink upper surface 32 and the sink bottom surface 34. In the examination results shown in FIGS. 10 and 11, the cause of the pseudo dirt 104 remaining on the upper side of the plate 100 is considered to be due to the mechanism described with reference to FIG. 15.

  In any washing operation such as “easy washing” or “careful washing”, it is preferable to reduce a phenomenon that water discharged from the kitchen faucet bounces off the washing object, so-called “water splashing”. Note that “easy washing” is an operation of washing an object with little dirt, and “careful washing” is an action of washing an object that is difficult to remove dirt. “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. Moreover, since it is a simple washing operation, it stands out in front of a cooking table (not shown) provided on the side of the sink 30 and is washed by inserting vegetables and the like toward the kitchen faucet 20. . “Polite washing” is an operation of mainly scrubbing, and specifically, an operation of washing mud dirt, oil dirt, or “smelling” of meat or fish. The washing time is longer than “easy washing”, for example, about 10 seconds or more. Moreover, since it is the operation | movement which wash | cleans the thing which does not remove dirt easily, it stands in front of the sink 30 and the kitchen faucet 20, and it often wash | cleans by cutting out the cutting board etc. after cutting a fish.

  The present inventors have examined in advance the water splash described above. 16 to 18 are schematic views for illustrating water splashing when water is discharged perpendicularly to the landing surface. FIGS. 19 to 21 are schematic views for illustrating water splashing when water is discharged from an oblique direction with respect to the water landing surface. FIG. 17A and FIG. 20A are schematic views for illustrating one water flow, and the other drawings are schematic views for illustrating a plurality of water flows.

  As shown in FIGS. 16 to 18, when the water 40 discharged from the kitchen faucet 20 lands vertically to the landing surface 101, the water 40 tends to flow substantially equally in all directions. That is, the water 40 tends to spread over the entire landing surface 101. 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. 16 and FIG. Thus, the water 40 is about to flow. As a result, the water 40 loses its flow and tends to stay there, or its direction is changed upward, and the staying water breaks up and tries to scatter as water droplets. Even when there is not enough energy to scatter as water droplets, the water surface in region 44 is significantly disturbed and the disturbance is propagated to the vicinity. Then, as shown in FIG. 18, when the turbulence is propagated and the water 40 lands on the water surface of the water 40b that is fluctuating like a wave from a substantially vertical direction, the turbulence is further amplified and the wave becomes larger, The water surface deformed to have a certain curvature or more is torn off the water film and discharged to the surroundings as water droplets.

  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. 19 to 21, when the water 40 discharged from the kitchen faucet 20 lands on the landing surface 101 in 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. Further, as shown in FIG. 21, when the water 40 lands on the water 40b where the water flow is stable and the stable water surface is formed from the oblique direction, the collision is caused by the same direction as the flow. The impact of the water is relaxed and the disturbance of the water surface is suppressed, so water splash is reduced. Further, as shown in FIG. 20B, 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 port in a direction inclined with respect to the water landing surface 101 (for example, the sink bottom surface 34), a flow of water flowing in the water landing surface 101 in approximately one direction can be formed. Even in this case, as shown in FIG. 21, 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 inventor, 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 101. 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.

  As described above, in the present embodiment, when the shower water discharges land on the bottom surface of the sink 30, a water film is formed, and further shower water discharges land on the water film formed on the bottom surface. Since the shower water discharge is discharged toward the front side, a water film is formed in the front direction when the shower water discharge reaches the bottom surface of the sink 30. In this way, the shower water discharged further on the water film formed on the bottom surface of the sink 30 lands, so that the water discharged to the near side can be landed on the water film so that the water film can reliably land on the water film. The impact force of the water can be absorbed, and the water flow of the shower water discharge is not disturbed, so that water splash can be suppressed.

  Further, the water discharge flow on the near side (first water discharge flow) in the depth direction of the shower water discharge sink 30 is formed by the water discharge flow on the rear side (second discharge water flow) landing on the bottom surface of the sink 30. It is configured to land on the water film. As described above, the water discharge flow on the near side (first water discharge flow) is formed on the water film formed toward the front by landing the water discharge flow on the rear side (second water discharge flow) on the bottom surface of the sink 30. Since the water is made to land, the water discharge flow on the near side (first water discharge flow) can be reliably landed on the water film, and the water flow of the shower water discharge is not disturbed, so that water splash can be suppressed.

  Next, the relationship between the inclination angle θ and water splash will be described. FIG. 22 is a schematic diagram for illustrating the outline of the water splash test. 22A is a schematic cross-sectional view for illustrating the state of the water splash test, and FIG. 22B is a schematic plan view seen from the direction of the arrow in FIG. As shown in FIG. 22A, an acrylic plate (length 500 mm × width 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. Then, as shown in FIG. 22B, the amount of water droplets splashed on the region 116 where no water film (retaining water) was 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 ° is assumed to be an angle at which the cleaning object is fed out. According to the knowledge obtained by the inventors, in the operation of washing hands and washing items by “easy washing”, the tip side is often lowered and washed. This seems to be due to the psychology of refusing to transmit water to the arms and reducing the burden on the joints. 15 ° is the lowest angle of, for example, a kitchen knife or the like that six subjects having a height of 162 ± 2 cm have put out the kitchen faucet 20.

  FIG. 23 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. 22 as the water splash amount.

  As shown in FIG. 23, according to the water splash test illustrated in FIG. 22, when the inclination angle θ is 30 ° or less, the water splash amount is substantially constant and large. This is because, as described above with reference to FIGS. 16 to 18, 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. 19 to 21, when the water is inclined with respect to the washing object, the water that has landed is discharged without delay and the disturbance of the water surface is suppressed. is there. 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. 24 is a schematic view of the system kitchen 10 according to this embodiment as viewed from above. As described with reference to FIG. 1, the system kitchen 10 according to this embodiment includes a kitchen faucet 20 and a sink 30. The kitchen faucet 20 is provided on the back side of the sink 30 as viewed from the user, that is, behind the system kitchen 10 and on the counter upper surface 62, and discharges water obliquely with respect to the sink upper surface 32. Further, the region 47 where the water 40 discharged from the shower water outlet 24 passes through the sink upper surface 32 has a flat shape with the longitudinal direction as the longitudinal direction. The length L3 in the left-right direction of the region 47 is, for example, about 20 mm as described above. The length L1 in the front-rear direction of the region 47 is about 85 mm as described above. If the discharged water 40 has a shape whose longitudinal direction is the front-rear direction of the system kitchen 10, the water 40 is widely applied to the washing object, so that it becomes easy to wash hands and kitchen knives. This is because palms, knives, and the like have a shape having a longitudinal direction, and when they are washed, the longitudinal direction is often drawn out in the front-rear direction of the system kitchen 10 and washed.

  In addition, since the shower water is more widely applied to the washing object than the rectified water, the shower water is easier to wash. Therefore, since the discharged water 40 is discharged obliquely with respect to the sink upper surface 32 and the sink bottom surface 34, the cleaning range is widened, and the cleaning effect is improved. That is, the amount of movement of the user's hand during the washing operation can be reduced.

  The kitchen faucet 20 is installed from the center of the sink left side 37 and the sink right side 39 from the sink left side 37. When the cooking table is installed on the left side of the sink 30, the kitchen faucet 20 is installed near the sink left side surface 37 in this manner, so that when standing in front of the cooking table and inserting a hand into the water discharge, However, it is easy to reach, and the washing operation in “easy washing” can be made more efficient. When the cooking table is installed on the right side of the sink 30, the kitchen faucet 20 may be installed on the sink right side 39 from the center of the sink left side 37 and the sink right side 39.

  As described above, according to the present embodiment, the water 40 discharged from the kitchen faucet 20 is configured to discharge water obliquely with respect to the sink upper surface 32 and the sink bottom surface 34, and The horizontal direction component in the water discharge direction of the discharged water is set to be larger than the vertical direction component. As a result, the cleaning effect is improved, the amount of movement of the hand during the washing operation can be reduced, and a kitchen faucet that is easy to use can be provided even for users with physical differences. Moreover, water splash can be reduced.

  FIG. 25 is a schematic diagram illustrating a user's work with a physique difference according to a comparative example. The system kitchen shown in FIG. 25 is a schematic diagram assuming that the user performs a washing operation using a conventional gooseneck faucet 20a and a sink. As shown in FIG. 25, the water outlet is disposed on the front side of the sink center 35, that is, on the user side. In addition, although water is discharged obliquely downward, if a user with a different physique tries to work in the same posture because the inclination angle is small, the position where the user stands changes. Thus, if the locus | trajectory (streamline) of water is short and water is discharged substantially vertically, the user who can perform a washing operation with an easy posture will be restricted. In other words, a user with a small physique can perform washing work in an easy posture.For example, for a tall user, his / her hand or arm becomes cramped or from the sink. For example, for users with short stature, it is difficult to reach the water discharge, the body bends forward, puts a strain on the waist, or stretches the elbow This is not preferable because it causes problems such as having to work.

  Then, the variation about the aspect which installs a watering hole in a watering board is described in FIG. (A), (b), (c), and (d) of FIG. 26 are schematic sectional views showing variations in which watering holes are installed in the watering plate. In (a) of FIG. 26, the water spray plate 66a is disposed so as to be inclined upward with respect to the horizontal plane, and the central axes of the plurality of water spray holes 67a are disposed such that the direction in which the water spray plate 66a is inclined is the longitudinal direction. Is. The shower water discharge 68a is discharged from the plurality of water spray holes 67a. Although this arrangement mode is also suitable, in order to make the kitchen faucet 20 more compact, as shown in FIGS. 26 (b), (c), and (d), it is predetermined in the direction orthogonal to the water spray plate. The water can be discharged upward or downward so that the shower water discharge spreads in the direction in which the water spray plate is inclined. If constituted in this way, even when the watering plate is made small, for example, the shower water discharge can be expelled with a spread, so a kitchen faucet that realizes water discharge that is small and can obtain a cleaning effect is provided. Can supply.

  More specifically, in FIG. 26B, the sprinkling hole 67b1 in the upper part in the figure located on the front side of the sink when arranged in the sink 30 is formed so as to be substantially orthogonal to the sprinkling plate 66b. ing. The sprinkling hole 67b2 below the sprinkling hole 67b1 in the figure is located on the heel side of the sprinkling hole 67b1 when arranged in the sink 30, and is inclined to the back side of the sprinkling hole 67b1. Is formed. Further, the watering hole 67b3 in the lower part of the drawing than the watering hole 67b2 is formed so as to be inclined further to the back side than the watering hole 67b2. Therefore, when the water spray plate 66b is used, the shower water spouting 68b lands on the sink bottom surface 34 rather than the outer shape around the discharge direction immediately after being discharged from the water spray holes 67b1, 67b2, 67b3 constituting the water discharge port as the discharge holes. This area is discharged so as to be further vertically long along the depth direction of the sink 30.

  If the water spray plate 66b is configured as shown in FIG. 26 (b), the shower water discharge is made to land on the sink bottom surface 34 rather than the outer shape immediately after being discharged from the water spray holes 67b1, 67b2, 67b3 constituting the water discharge port. Therefore, the outer shape around the discharge direction immediately after being discharged from the water spray holes 67b1, 67b2, 67b3 constituting the water discharge port can be reduced. Therefore, the kitchen faucet 30 can be reduced in size. Further, if the area where the water spray holes 67b1, 67b2, 67b3 are further narrowed than shown in FIG. 26 (b), it is difficult to cope with only shower water discharge, and work such as drawing water into a small-diameter container is also possible. It can be performed comfortably without switching water discharge.

  In FIG. 26 (c), the sprinkling hole 67c1 in the upper part of the figure located on the front side of the sink when arranged in the sink 30 is formed so as to incline forward from a direction substantially orthogonal to the watering plate 66c. ing. The sprinkling hole 67c2 below the sprinkling hole 67c1 is located on the heel side of the sprinkling hole 67c1 when arranged in the sink 30, and is forwardly inclined with a gentler slope than the sprinkling hole 67c1. It is formed to be inclined. Further, the watering hole 67c3 located below the watering hole 67c2 in the figure is formed so as to be substantially orthogonal to the watering plate 66c. Therefore, when the water spray plate 66c is used, the shower water spouting 68c has a region when the sink bottom surface 34 is landed rather than the outer shape around the discharge direction immediately after being discharged from the water spray holes 67c1, 67c2, 67c3 as the discharge holes. The liquid is discharged so as to be further vertically long along the depth direction of the sink 30.

  If the water spray plate 66c is configured as shown in FIG. 26 (c), the shower water discharge 68c as the second water discharge flow discharged from the water spray hole 67c2 functioning as the second discharge hole lands on the sink bottom surface 34. The generated water splash can be directed to each water discharge flow constituting the shower water discharge 68c as the first discharge flow discharged from the water spray hole 67c1 functioning as the first discharge hole. In this way, the water splash by the second water discharge flow is directed to each water flow constituting the first water discharge flow with a simple configuration in which the water spray hole 67c2 as the second discharge hole is inclined to the first water discharge flow side. The water splash due to the second water discharge can be reliably received. Moreover, since the water splash by a 2nd water discharge flow goes to each water flow which comprises a 1st water discharge flow, even if it does not increase the width | variety of a 1st water discharge flow, the water splash by a 2nd water discharge flow can be received reliably. Moreover, since the water splash by a 2nd water discharge flow can be made to collide with a 1st water discharge flow reliably, the flow volume of a 1st water discharge flow is not increased more than necessary, and the water splash by a 1st water discharge flow can also be suppressed. In this way, the first water discharge flow on the front side of the shower water discharge is formed so as to receive the water splash generated by the second water discharge flow on the rear side landing on the bottom surface of the sink, Even if the water spouting the sink bottom surface 34 or the object to be cleaned causes water splashing on the user side, at least the water splashing by the rear second water discharging flow can be reduced by the first water discharging flow being received.

  It is also preferable that the first water discharge flow is configured as a dense water flow compared to the second water discharge flow. If comprised in this way, since it comprises so that the space | interval of the 1st water discharge flow which receives the water splash by a 2nd water discharge flow may become dense compared with a 2nd water discharge flow, the water splash by a 2nd water discharge flow is 1st. It is possible to prevent slipping through the single water discharge flow, and the first water discharge flow can reliably receive the water splash due to the second water discharge flow.

  Further, the interval between the water spray holes 67c1 serving as the first discharge holes for discharging the first water discharge flow is configured to be narrower than the interval between the water spray holes 67c2 and 67c3 serving as the second discharge holes for discharging the second water discharge flow. It is also preferable. If comprised in this way, the space | interval of the water spray hole 67c1 as a 1st discharge hole which discharges a 1st water discharge flow is narrower than the space | interval of water spray holes 67c2 and 67c3 as a 2nd discharge hole which discharges a 2nd water discharge flow. Since it comprises, for example, even if it is a case where the flow volume of a 1st discharge flow is small, a 1st discharged water flow can be reliably made into a dense state with respect to a 2nd discharged water flow. A specific arrangement example is shown in FIG. As shown in FIG. 27, the watering plate 66c is formed with watering holes 67c1 as first discharge holes and watering holes 67c2 and 67c3 as second discharge holes. The watering hole 67c1 is configured by a frontmost watering hole 67c1a and a rearward watering hole 67c1b. Nine holes are arranged in a row in the front sprinkling holes 67c1a. The rear sprinkling holes 67c1b are arranged to be 4 rows × 4 columns. Further, the watering holes 67c2 are arranged so as to be 4 rows × 4 columns, and the watering holes 67c3 are arranged so as to be 5 rows × 4 columns. Therefore, the installation interval t1 of the front row sprinkling holes 67c1a is arranged to be narrower than the installation interval t2 of the rear row sprinkling holes 67c1b, 67c2, and 67c3. By comprising in this way, a 1st discharged water flow can be reliably made into a dense state with respect to a 2nd discharged water flow.

  In FIG. 26 (d), the water sprinkling hole 67d1 in the upper part of the drawing located on the near side of the sink when arranged in the sink 30 is formed so as to incline forward from a direction substantially orthogonal to the water spray plate 66d. ing. The watering hole 67d2 below the watering hole 67d1 in the drawing is located on the heel side of the watering hole 67d1 when arranged in the sink 30, and is substantially orthogonal to the watering plate 66d. Is formed. Further, the watering hole 67d3 located below the watering hole 67d2 in the drawing is formed so as to incline to the back side. Therefore, when the water spray plate 66d is used, the shower water spouting 68d has a region where the sink bottom surface 34 is landed rather than the outer shape around the discharge direction immediately after being discharged from the water spray holes 67d1, 67d2, 67d3 as the discharge holes. The liquid is discharged so as to be further vertically long along the depth direction of the sink 30.

  In addition, it is also preferable to include a splash suppression means that suppresses the splash of water that occurs when the first water discharge flows on the sink bottom surface 34. If the splash suppression means for suppressing the water splash due to the first water discharge flow is provided, the water splash due to the first water discharge flow can be suppressed together with the water splash suppression due to the second water discharge flow. Can be suppressed.

  Specifically, it is preferable that the bounce suppressing means reduce the flow rate of the first discharged water flow than the flow rate of the second discharged water flow. The first water discharge flow should just receive the water splash by a 2nd water discharge flow, and it functions as a curtain which receives the water splash by a 2nd water discharge flow. Therefore, by reducing the flow rate of the first water discharge flow compared to the diversion of the second water discharge flow, while fulfilling the role as a curtain that catches the water splash by the second water discharge flow, The impact force can be reduced to suppress water splashing.

  Further, the water spray holes 67c2 and 67c3 functioning as the second discharge holes for discharging the second water discharge flow are larger in diameter than the water spray holes 67c1 functioning as the first discharge holes for discharging the first water discharge flow, and the second discharge It is also preferable that the number of water spray holes 67c2 and 67c3 functioning as holes is smaller than the number of water spray holes 67c1 functioning as first discharge holes. If comprised in this way, since the water spray holes 67c2 and 67c3 which function as a 2nd discharge hole are larger diameter than the water spray hole 67c1 which functions as a 1st discharge hole, the diameter of the water spray hole 67c1 can be made comparatively small. It is possible to reliably reduce the impact force due to the landing of the first water discharge flow and suppress water splashing. Further, by reducing the number of water spray holes 67c2 and 67c3 having a large diameter from the number of water spray holes 67c1 having a small diameter, the total discharge flow rate and water spray per unit area of the region where the water spray holes 67c2 and 67c3 are formed. The total discharge flow rate per unit area of the region in which the hole 67c1 is formed can be balanced to such an extent that there is no sense of incongruity, and the feeling of washing when the water has landed should be made uniform to the extent that no sense of incongruity is felt. Can do.

  The watering plates 66a, 66b, 66c, 66d described with reference to FIG. 26 can be combined with any of the arrangement variations of the watering holes described later.

  Subsequently, the plurality of water spray holes 69 provided in the water spray plate will be described. The plurality of sprinkling holes 69 form a sprinkling hole group 70 in which a plurality of sprinkling holes 69 are gathered according to the shape of the shower spout supplied and the effect to be generated. The arrangement of the sprinkling hole group 70 on the plate is changed. In the plurality of water spray holes 69 in the present embodiment, the distance between the nearest water spray holes 69 is set to be substantially the same distance. This is due to the arrangement of the sprinkling holes 69 in the sprinkling hole group 70 described above, and the sprinkling holes 69 in the sprinkling hole group 70 have the same distance between the closest sprinkling holes 69. Since the shower water discharge formed in the hole group 70 can obtain a uniform cleaning effect in the sprinkling hole group 70, it is possible to supply washable water discharge simply by presenting an object to be cleaned. As shown in FIG. 28, in the circular sprinkling hole group 70, the sprinkling holes 69 on the circumference have a shape in which the sprinkling holes 69 are arranged on the circumference and the distance between adjacent sprinkling holes is constant. Even when the object to be cleaned lands on the object to be cleaned, the water film after landing is formed without significant deformation due to the uniform hole arrangement. The spread can be maintained and the cleaning effect can be improved.

  Further, as shown in FIG. 29, in the case of the sprinkling hole group 72 in which the sprinkling holes 71 are arranged in a U-shape, the cleaning water is supplied to the object to be cleaned by making the distance between the adjacent sprinkling holes 71 substantially the same. It becomes possible to form a water film generated at the time of collision with respect to the horizontal direction of the drawing, and the water flow from the sprinkling holes 71 collides uniformly with the object to be cleaned, thereby colliding with the object to be cleaned. It is possible to stably ensure the cleaning power at the time in the sprinkling hole group 72, and it is possible to form a water film without greatly disturbing the shape in the formation of the water film spreading in the left-right direction. It becomes possible to maintain the cleaning power.

  FIG. 30 shows an example in which the arrangement of watering holes is changed. 30A is a plan view of the watering plate 73, and FIG. 30B is a cross-sectional view taken along line AA in FIG. As shown to (a) of FIG. 30, the water spray hole is arrange | positioned at the horizontal direction at the line form. The frontmost water spray hole (first discharge hole) has a water spray hole 73a disposed on the center side, and 73b and 73b disposed on both sides (side end sides) of the water spray hole 73a. . The water sprinkling holes 73b and 73b are arranged so as to recede with respect to the water sprinkling holes 73a, and the front end sprinkling holes 73a, 73b and 73b as the first discharge holes recede on the side end side with respect to the center side. Are arranged as follows.

  Sprinkling holes 73a, 73b, 73b as second discharge holes are arranged in the same arrangement manner behind each of the sprinkling holes 73a, 73b, 73b constituting the frontmost water spray holes (first discharge holes). ing. The sprinkling holes 73a, 73b, 73b in the second and subsequent rows are also arranged so that the side end sides are retracted with respect to the center side, as in the first row.

  As shown in FIG. 30 (b), the direction in which each of the sprinkling holes 73a, 73b, 73b is formed is similar to the direction of the hole in FIG. It is formed so as to be substantially orthogonal to the water spray plate 73, the front-rear direction front (upper in the figure) is inclined forward, the rear in the front-rear direction (lower in the figure) is inclined rearward, and the water discharged as a whole diffuses It is formed to do. Therefore, when the pattern in which the water discharged from the arrangement pattern of the sprinkling holes 73a, 73b, 73b shown in FIG. 30 lands is shown in FIG. 31, the longitudinal length of the holes shown in the sprinkling holes 73a, 73b, 73b shown in FIG. The length Lb before and after the landing is longer than the length La.

  As described above, the sprinkling holes 73a, 73b, 73b as the first discharge holes for discharging the first water discharge flow are arranged in a row in the front row, and the second discharge holes for discharging the second water discharge flow. The sprinkling holes 73a, 73b, 73b are arranged in a row behind the sprinkling holes 73a, 73b, 73b as the first discharge holes arranged in a row. Sprinkling holes 73a, 73b, 73b as first discharge holes arranged in a row and sprinkling holes 73a, 73b, 73b as second discharge holes arranged in a row are arranged on the side end side with respect to the center side of each row. It is arranged to retreat.

  Focusing on the individual water flow of the shower water discharge, the water droplets constituting each water flow spread after landing, so if there is an adjacent water flow, they interfere with each other, and as a result, the water film tends to spread in the direction where there is no adjacent water flow . In this aspect, the sprinkling holes 73a, 73b, 73b as the first discharge holes arranged in a row and the sprinkling holes 73a, 73b, 73b as the second discharge holes arranged in a row are arranged with respect to the center side of each row. Therefore, the discharge holes are arranged adjacent to each other in the lateral direction on the central side, and the discharge holes are arranged adjacent to each other toward the oblique rear side on the side end side. . Accordingly, the water is discharged from the water discharge holes 73a, 73b, 73b as the first discharge holes arranged in a row and the water discharge holes 73a, 73b, 73b as the second discharge holes arranged in a row. The water spreads the water film to the near side after landing, and the water discharged from the discharge holes on the side end side acts to spread the water film in the lateral direction. Accordingly, it is possible to reliably form a water film spreading toward the near side in order to prevent water splashing and a water film spreading in the lateral direction for enhancing the cleaning power in accordance with the respective functions and positions.

  In this way, the water flow on the center side of the second water discharge flow widens the water film on the front side, and the water flow on the side end side of the second water discharge flow widens the water film in the lateral direction. In order to prevent this, it is possible to reliably form a water film spreading toward the near side and a water film spreading in the lateral direction for enhancing the cleaning power according to the respective functions and positions.

  Further, as described above, in the arrangement pattern of the water spray holes 73a, 73b, 73b shown in FIG. 30, the water discharge directions from the water spray holes 73a, 73b, 73b as the first discharge holes arranged in a line are substantially the same direction. On the other hand, the water discharge direction from each of the water spray holes 73a, 73b, 73b as the second discharge holes behind the first discharge holes arranged in a row is substantially the same for each row. It is configured as follows. Therefore, the water discharged from the sprinkling holes 73a, 73b, 73b as the first discharge holes is directed in the optimum direction as the first discharge flow, and is discharged from the sprinkling holes 73a, 73b, 73b as the second discharge holes. The water can be configured to be directed in an optimum direction as the second water discharge flow. Therefore, it is possible to reliably form a water film spreading toward the near side in order to prevent water splash and a water film spreading in the lateral direction for enhancing the cleaning power in accordance with each function and position.

  FIG. 32 is a schematic diagram for illustrating a watering plate provided in the shower water discharger, and is a schematic diagram when viewed from the front. In addition, (a) of FIG. 32 is a schematic diagram at the time of seeing the whole watering board from the front, (b) of FIG. 32 is a schematic diagram for illustrating a watering hole group. The watering board 74 illustrated to (a) of FIG. 32 is fixed to the shower spout 24 of the kitchen faucet 20. FIG. The water spray plate 74 is provided with a plurality of water spray hole groups 75. As shown to (a) of FIG. 32, a water spray hole group can be arranged in 2 groups, 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 75 shown in FIG. 32B, for example, the number of sprinkling holes 75a can be about 120. Water can be discharged from the sprinkling holes 75a, and the discharged water reaches the sink bottom surface 34 as a shower water discharge flow.

  Here, the horizontal width dimension L5 and the vertical width dimension L6 of the region where the water spray holes 75a are provided will be described. In addition, as shown in FIG. 32, the horizontal 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 75a 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 75a arrange | positioned.

  As a shower outlet provided in the system kitchen, it is preferable that water can be discharged over a wide range with respect 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 on the sink directly 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 inventors, if the width L5 is about 20 mm with respect to the width (about 30 mm) of a general knife blade, 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, 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 inventors, 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 put into the water discharged from the shower spout 24 (sprinkling hole 75a) 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 inventors, for example, when the vertical dimension L6 is 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 75 can be 33 mm, the horizontal width dimension L50 can be 20 mm, and the distance L7 between the water spray hole groups can be 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 75a 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.

  Then, the further modification of the watering board fixed to the shower water discharging part 24 is illustrated. 33 to 37 are schematic views for illustrating modifications of the watering plate fixed to the shower spout 24.

  As shown in FIG. 33, the watering plate 74 c is provided with a watering hole group 75 c instead of the watering hole group 75 illustrated in FIG. 32. 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.

  As illustrated in FIG. 33, if a water spray plate 74c having one water spray hole group 75c is used, water droplets will land in a denser area. 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. 34, the watering plate 74d is provided with a watering hole group 75d instead of the watering hole group 75 illustrated in FIG. In this case, the number of sprinkling holes is not a plurality but only one, and the number of sprinkling holes can be about 250, for example, and the diameter of the sprinkling holes can be about 0.4 mm.

  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 holes are provided has a shape in which the width is gradually narrowed compared to the water spray plate 74c illustrated in FIG. And the amount of water used can be suppressed.

  FIG. 35 is a schematic diagram for illustrating a modified example of the watering plate provided in the shower water discharger. In addition, (a) of FIG. 35 is a schematic diagram when the whole watering plate is viewed from the front, and (b) of FIG. 35 is a schematic diagram for illustrating the watering hole group. As shown to (a) of FIG. 35, the watering board 26e is provided with the watering hole group 27e. 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.

  Further, as shown in FIG. 35 (b), for example, the sprinkling hole group can be formed into a flat shape in which the horizontal direction (left-right direction in the drawing) is the longitudinal direction, and can be formed in a convex shape upward in the drawing. . A dimension L50e in the horizontal direction (left-right direction in the figure) of the sprinkling hole group 75e can be set to, for example, about 20 mm, and a dimension L60e in the vertical direction (up-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, but since the sprinkling hole group is arranged in the vertical direction, as shown in FIG. 34, 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. 36 is a schematic diagram for illustrating a modified example of the watering plate provided in the shower water discharger. 36A is a schematic diagram when the entire watering plate is viewed from the front, and FIG. 36B is a schematic diagram for illustrating the watering hole group. As shown to (a) of FIG. 36, the watering board 74f is provided with the watering hole group 75f. 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 75f can be set to 12 mm, for example. In this case, the water spray hole group provided in the water spray plate 75f 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. 36B, 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. 34, the same effect as the flat water spray hole group having the longitudinal direction as the longitudinal direction can be obtained.

  FIG. 37 is a schematic diagram for illustrating a modified example of the watering plate provided in the shower water discharger. In addition, (a) of FIG. 37 is a schematic diagram at the time of seeing the whole watering board from the front, and (b) of FIG. 37 is a schematic diagram for illustrating a watering hole group. As shown to (a) of FIG. 37, the watering board 74g is provided with the watering hole group 75g. 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 75g can be 5 mm, for example.

  Moreover, as shown in FIG. 37 (b), for example, the sprinkling hole group can be formed into a flat shape with the horizontal direction (left-right direction in the drawing) as the longitudinal direction and a convex shape toward the upper side of the drawing. . The dimension L50g in the horizontal direction (left and right direction in the figure) of the sprinkling hole group 75g 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, but since the sprinkling hole group is arranged in the vertical direction, as shown in FIG. 34, 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. 33 to 37, 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 watering holes is not limited to the circular shape illustrated in FIG. 36, and may be an arbitrary 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. 38 is a schematic diagram for illustrating a water discharge flow and a water film formed after landing. FIG. 38A 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. 38B is a region where the water hole is provided. It is a schematic diagram which illustrates a water film in case the vertical width dimension is larger than a horizontal width dimension, (c) of FIG. 38 shows that the vertical width dimension of the area | region in which a water spray hole is provided is larger than a horizontal width dimension, and also a vertical direction It is a schematic diagram for illustrating the water film in the case of being convex upward.

  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 in FIG. 38 (a), when the horizontal width dimension of the region where the water spray holes are provided is wider than the vertical width dimension, the shape of the water landing portion 77a also has a large horizontal width dimension. 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. 38B, 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 water landing portion 77b 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. 38 (c), 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 77c is also It is a flat shape with the traveling direction (upward direction in the figure) as the longitudinal direction and is convex. In this case, since the shape is a flat shape having the substantially traveling direction as the longitudinal direction, the direction of the traveling direction can be changed to the left and right direction as shown in FIG. 38B, but the lateral width gradually increases. Therefore, the conversion of the flow direction in the left-right direction becomes more prominent, so that it further expands in the left-right direction.

  The test for examining the area of the water film is substantially the same as that described with reference to FIG. 22, but will be described again. As shown in FIG. 22A, an acrylic plate (length 500 mm × width 500 mm) inclined by 15 ° with respect to the counter upper surface 62 is inserted into the sink 30, and water 40 crossing the height of the counter upper surface 62 is poured. I tried to receive it. And as shown to (b) of FIG. 22, 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. 39 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. 39 (a), (b), (c), and (d) discharged water using the water spray plates 74d, 74c, 74e, and 74g shown in FIGS. 34, 33, 35, and 37, respectively. In this case, the shape and area of the water film are shown. The shape of the water film shown in FIGS. 39A to 39E is large in the direction orthogonal to the traveling direction (the left-right direction in the figure), and the area of the water film is also large. This is because, as described above with reference to FIG. 38 (c), the flow of water in the direction orthogonal to the traveling direction (the left-right direction in the figure) is remarkably promoted.

  On the other hand, (f) of FIG. 39 shows the shape and area of the formed water film when water is discharged using a watering plate in which the watering plate 26d shown in FIG. Show. Since the lateral expansion is suppressed, the area of the water film is small.

  Further, (g) and (h) of FIG. 39 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.

  (I) of FIG. 39 has shown the shape and area of the water film at the time of discharging water using the watering board whose horizontal width dimension of the area | region in which a water spray hole is provided is larger than a vertical width dimension. As described above with reference to (a) of FIG. 38, the flow of water in the direction orthogonal to the traveling direction (left-right direction in the figure) is suppressed, so the area of the water film is small.

  (J) of FIG. 39 has shown the shape and area of the water film at the time of discharging water using the watering board whose vertical width dimension of the area | region where a watering hole is provided is larger than a horizontal width dimension. As described above with reference to FIG. 38 (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 in the vertical direction. Since they are equal, it is impossible to form a larger area as a convex shape.

  As described above, when the shower water discharges land on the sink bottom surface 34, it is formed so as to spread in the lateral direction, and it is possible to ensure a wide water landing area not only in the vertical direction but also in the horizontal direction to ensure a wide washing area. it can. Therefore, even if the object to be cleaned has a large area such as a cutting board, the moving distance of the object to be cleaned can be reduced, and the movement of the user's hand for moving the object to be cleaned can be reduced. Also, the work time can be shortened.

  It is also preferable that the shower water is discharged so as to land on the center side on the near side and not on the side end side on the near side when landing on the sink bottom surface 34. Specifically, for example, in FIG. 31, shower water is landing on the central side of the front side where the water discharged from the sprinkling holes 73 a arrives, and the water discharged from the sprinkling holes 73 b arrives. The shower water discharge does not land on the side end side on the near side in front of the place.

  The shower water discharged on the bottom surface 34 of the sink spreads in the front direction and tends to spread in the lateral direction. Therefore, when the shower water discharges land on the sink bottom surface 34, it is configured so as to land on the center side on the near side while not landing on the side end side on the near side, see FIG. However, as described above, the water that has landed on the front center side spreads in the horizontal direction without being obstructed, and a wider washing area can be secured.

  In addition, as shown in FIG. 30 and the like, a water spray hole as a water discharge hole for discharging shower water is provided on the center side of the front side, but not provided on the side end side of the front side. When landing on the bottom surface 34, it is possible to easily and surely realize a state where the water does not land on the side end side on the near side while the water lands on the center side on the near side. Therefore, the water that has landed on the front center side spreads in the horizontal direction without being disturbed, and a wider washing area can be secured.

  Furthermore, in the kitchen faucet 20, it is also preferable to discharge water so that the amount of water discharged on the side end side is larger than the amount of water discharged on the center side of the shower water discharge. By discharging water so that the water discharge amount on the side end side is larger than the water discharge amount on the center side, it is possible to secure a sufficient flow rate on the outside when the shower water discharge arrives, Even when the flow rate is low, the shower water discharge can be spread laterally cleanly and a sufficient washing area can be secured.

  FIG. 40 is a schematic view for illustrating a modified example of the watering plate provided in the shower water discharger. 40A is a schematic view when the watering plate is viewed from the front, and FIG. 40B is a schematic cross-sectional view showing a cross section taken along the line AA in FIG. .

  As shown to (a) of FIG. 40, the watering hole 74h is provided in the watering board 74h. In this case, the water spray holes are arranged in 21 rows × 8 columns. The dimension L5h in the horizontal direction (left-right direction in the figure) of the region where the water sprinkling holes 75h are provided can be about 20 mm, for example, and the dimension L6h in the vertical direction (vertical direction in the figure) is about 65 mm, for example. can do. In the upper part of the watering plate, 10 rows of watering holes 85 (a part of the watering hole 75h) having the same hole diameter are arranged. For example, the hole diameter of the watering holes can be about 0.4 mm. Further, 11 rows of sprinkling holes 86 having a large hole diameter (which is a part of the sprinkling holes 75h) are arranged in the lower part of the sprinkling plate. For example, the hole diameter of the sprinkling holes can be about 0.6 mm. .

  In this case, when a water film is formed in the water spray hole, the surface tension acting on the water film in the lower water spray hole 86 is 2/3 of the surface tension acting on the water film in the upper water spray hole. Accordingly, the water sprinkling hole 86 at the lower end is difficult to hold the water film, so that water is easily discharged. Further, when discharging, since the hole area is large, the discharging speed is also increased. Further, when water is discharged, since a larger water droplet collides with the cleaning object, the impact force is increased, and the effect of improving the cleaning property can be expected. In the case of large water droplets, there is a possibility that water splash may occur, but since the water spray holes 85 with small diameters are arranged above the water spray plate 74h and are blocked by the shower water discharged from the small water spray holes, the cooker It doesn't splatter to the side.

  Further, as shown in FIG. 40 (b), the axial direction of the sprinkling holes 75h (sprinkling holes 85, 86) provided in the sprinkling plate 74h is ω downward with respect to the normal direction of the sprinkling plate. Tilted. By doing in this way, when inclining a watering board and discharging water diagonally, the water pressure which acts on the water film of a watering hole lower end can be increased. That is, since the axial direction of the water spray hole is inclined, the vertical direction of the water surface and the water film at the lower end of the water spray hole is larger than the case where the axial direction of the water spray hole is perpendicular to the water spray plate. The height difference can be increased and water can be discharged at the same angle. As a result, the water pressure acting on the water film at the lower end of the water spray hole is increased, so that the discharge of water is promoted. In addition, enlarging the hole diameter of the sprinkling hole in the lower part and inclining the axial direction of the sprinkling hole downward are devised with different technical ideas, like a sprinkling plate 74h shown in FIG. May be performed simultaneously or separately.

  As described above, the sprinkling hole 86 as a high impact spout for discharging shower spout having a large impact force at the time of landing, and the shower spout from the sprinkling hole 86 as a high impact spout, It has a sprinkling hole 85 as a low impact spout for discharging shower spout with a small impact force, and the sprinkling hole 86 as a high impact spout is disposed behind the sprinkling hole 85 as a low impact spout. Has been. In this way, the water sprinkling hole 86 as the high impact water spouting port is disposed behind the water sprinkling hole 85 as the low impact water spouting port, so that the water splash due to the high impact water spouting can be blocked by the low impact water spouting, and the high cleaning is performed. Both power and prevention of water splash can be achieved. Moreover, the second water discharge hole is made by making the diameter of the water spray hole 86 as the second water discharge hole constituting the high impact water discharge hole larger than the diameter of the water spray hole 85 as the first water discharge hole constituting the low impact water discharge hole. As a large particle of water discharged from the sprinkling hole 86, the impact force at the time of landing is increased by simple means.

  A modification of the water spray plate provided with the high impact water spouting port and the low impact water spouting port will be described with reference to FIGS. A watering plate 80 a shown in FIG. 41 includes watering holes 87 having a larger diameter than the watering holes 86 in addition to the watering holes 85 and 86. In the watering plate 80a, 12 watering holes 85 are arranged in 3 rows × 4 columns, 9 watering holes 86 are arranged in 3 rows × 3 columns, and the watering holes 87 are 4 in 2 rows × 2 columns. Are arranged. The first area 801 in which the water spray holes 85 are provided, the second area 802 in which the water spray holes 86 are provided, and the third area 803 in which the water spray holes 87 are provided are areas having the same area. .

  Since the sprinkling holes 86 and 87 that are the second discharge holes are larger in diameter than the sprinkling holes 85 that are the first discharge holes, the diameter of the first discharge holes 85 can be made relatively small, and the first spout flow can be reduced. The impact force caused by landing can be reliably reduced and water splashing can be suppressed. Moreover, by making the number per unit area of each of the sprinkling holes 86, 87 (second discharge holes) having a large diameter smaller than the number per unit area of the sprinkling holes 85 (first discharge holes) having a small diameter, Open area ratio of the regions (second region 802, third region 803) where the water spray holes 86, 87 (second water discharge holes) are formed, and regions where the water spray holes 85 (first water discharge holes) are formed The total area per unit area of the second area 802 and the third area 803 in which the sprinkling holes 86 and 87 as the second discharge holes are formed can be balanced with the aperture area ratio of the (first area 801). It is possible to balance the discharge flow rate with the total discharge flow rate per unit area of the first region 801 in which the water spray holes 85 as the first discharge holes are formed. Therefore, it is possible to make the feeling of washing at the time of landing even so as not to feel uncomfortable.

  In the watering plate 80b shown in FIG. 42, watering holes 85 are arranged in 5 rows × 4 columns on the upper side, and watering holes 87 are arranged in 4 rows × 2 columns on the lower center. One row (four pieces) of watering holes 85 is arranged in each of these. Therefore, at the lower side (back side), water spray holes 85 as low impact water spouting ports are arranged at least at both ends of the water spray holes 87 as high impact water spouts. As described above, the low-impact spouts configured by the small-diameter sprinkling holes 85 (first spout holes) are arranged at both ends of the high-impact spouts configured by the large-diameter sprinkle holes 87 (second spout holes). Therefore, the periphery of the large water discharge can be surrounded by the small water discharge, and the beauty can be improved by surrounding the periphery with a delicate water discharge flow while improving the cleaning power and preventing water splashing.

  The watering plate 80c shown in FIG. 43 has four watering holes 85 arranged in the front row (upper), three watering holes 87 arranged in the rear row, and then the watering holes 85 and the watering holes. 87 are alternately arranged. Therefore, the sprinkling holes 87 as high impact spouts and the sprinkling holes 85 as low impact spouts are alternately arranged from the front side. In this way, the water spray hole 87 as a high impact water discharge port for performing water discharge for securing the cleaning power, and the water spray hole 85 as a low impact water discharge port for performing water discharge to widen the water film for securing the cleaning area. Since it is alternately arranged from the front side, it is possible to achieve both roles by alternately arranging the part that secures the cleaning power and the part that secures the cleaning area. Since the impact spouts are regularly arranged, variation in the cleaning feeling in the front-rear direction can also be reduced.

  In the above description, the sprinkling hole 87 is regarded as constituting a high-impact spout and the sprinkling hole 85 is regarded as constituting a low-impact spout, but the sprinkling hole 87 discharges a shower spout with a large amount of water. The water spout 85 is also regarded as constituting a low water spout for discharging shower spout having a smaller water volume than the shower spout from the large water spout. it can. Thus, by having the water spray hole 87 as a large water discharge port, a high cleaning power can be ensured. By alternately disposing the sprinkling holes 87 as the large water spouts and the sprinkling holes 85 as the small water spouts from the near side, the portions that secure the cleaning power and the portions that secure the cleaning area are alternately disposed. Thus, both roles can be achieved and variations in the feeling of cleaning in the front-rear direction can be reduced. Further, by filling the gap between the large water discharge with the small water discharge, it is possible to achieve both high cleaning power and a beautiful appearance.

  The watering plate 80d shown in FIG. 44 has watering holes 87 arranged in 8 rows × 3 columns on the inner side, and watering holes 85 are arranged so as to surround the outer side. The sprinkling hole 87 is regarded as constituting a large water discharge outlet for discharging shower water with a large amount of water, and the sprinkling hole 85 is for discharging shower discharge with a smaller amount of water than the shower discharge from the large water discharge outlet. If it considers as what comprises a low water amount spout, the sprinkling hole 85 as a small water spout will be arrange | positioned at the both ends of the sprinkling hole 87 as a large water spout. In this way, by arranging the sprinkling holes 85 as the small water spouts at least at both ends of the sprinkling holes 87 as the large spouts, the trajectory of water seems to wave intermittently although the cleaning power is high. By enclosing a large water discharge with a small water discharge, which is a continuous delicate water trajectory, it is possible to achieve both high cleaning power and a beautiful appearance.

  The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, etc. of each element provided in the system kitchen 10 and the kitchen faucet 20 and the installation form of the kitchen faucet 20 and the watering plate 26 are not limited to those illustrated. And can be changed as appropriate. The system kitchen means a kitchen faucet having at least a water outlet and a facility device for performing a cooking operation including a sink.

  Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

10: System kitchen 20: Kitchen faucet 22: Rectification spout 23: Rectification water distribution pipe 24: Shower spout 25: Shower water distribution pipe 26: Sprinkling plate 26a: Sprinkling plate 27: Sprinkling hole group 27a: Sprinkling hole 30: Sink 32: Sink top surface 34: Sink bottom surface 35: Center 36: Sink front surface 37: Sink left side surface 38: Sink rear surface 39: Sink right side surface 40: Water 40a: Water 40b: Water 42: Washing region 44: Region 46: Region 47 : Area 48: Area 50: Area 52: Area 54: Area 62: Counter upper surface 100: Plate 100a: Center 101: Landing surface 102: Fixed rod 104: Pseudo filth 110: Area 112: Area 116: Area C: Arrow D: Arrow E: Arrow θ: Inclination angle

Claims (1)

A kitchen faucet provided in the kitchen,
A mounting portion to be attached to the mounting surface of the kitchen;
In the installed state in which the attachment portion is attached to the attachment surface, an upright portion that extends upward from the attachment portion and toward the front side where the user is present, and
A shower water spouting portion provided on the standing portion and having a plurality of water spray holes for discharging a shower water flow;
The shower water spouting portion is configured so that an outer peripheral shape of the shower water flow when passing through a height position of the mounting surface is a vertically long shape in the front-rear direction rather than the left-right direction, and the water discharge after the water discharge A kitchen faucet characterized in that the outer peripheral shape of the shower water flow is configured so that the front-rear direction is larger than the left-right direction.

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