JP2016023404A - Hand wash basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of residual foam and a puddle.SOLUTION: A hand wash basin has a bowl part, which receives washing water discharged from a faucet and exhausts the received washing water to a drain pipe from a drain hole, including a back face, a drain ditch, a bottom face, a front face, and a pair of side faces. The back face is disposed on the arrangement side of the faucet. The drain ditch disposed along the horizontal direction of the back face has a length closer to the diameter of the drain pipe than the width of the rear face in the horizontal direction, being composed of a bottom wall and side walls surrounding the bottom wall from four directions. The drain ditch has an internal exhaust hole. The bottom face is connected to the long sides of the drain ditch. The front face is connected to the bottom face, with a downward inclination to the bottom face. The pair of side faces are connected to the short sides of the drain ditch, the bottom face, and the front face, with a downward inclination to the bottom face.SELECTED DRAWING: Figure 1

Description

  The disclosed embodiments relate to hand wash basins.

  2. Description of the Related Art Conventionally, there is a hand-washing device in which a slit-like drain groove is provided across the width direction of a bowl portion that receives wash water discharged from a water discharge portion (see, for example, Non-Patent Document 1). In such a hand-washing machine, the drainage hole for discharging the washing water from the bowl part to the drain pipe is provided in the drainage groove, thereby improving the design as an appearance that does not show the drainage hole.

Invention Promotion Association Public Technical Bulletin No. 2012-503114

  However, in the conventional hand-washing machine as described above, since the drainage groove is long, the washing water spreads, the water flow decreases, and the washing water may stagnate in the drainage groove. As a result, foam residue and water accumulation may occur.

  One aspect of the embodiment has been made in view of the above, and an object thereof is to provide a hand-washing machine capable of suppressing the generation of foam residue and water pool.

  A hand-washing machine according to an aspect of the embodiment includes a bowl portion that receives wash water discharged from a faucet and discharges the wash water from a drain hole to a drain pipe, and the bowl portion is disposed on the side of the faucet. And a side wall that is provided along the horizontal direction of the back surface and has a length closer to the diameter of the drain pipe than the horizontal width of the back surface, and that surrounds the bottom wall and the bottom wall from all sides A drainage groove having the drainage hole formed therein, a bottom surface connected to a long side of the drainage groove, a front surface connected to the bottom surface and inclined downward toward the bottom surface, and the drainage A short side of the groove, the bottom surface, and a pair of side surfaces which are connected to the front surface and inclined downward toward the bottom surface.

  The length of the long side of the drainage groove is short with respect to the width in the horizontal direction of the back surface, and by forming a shape in which the pair of side surfaces are concentrated on the bottom surface, the washing water does not spread in the width direction of the bowl part, The water flow of the washing water flowing into the drainage groove can be suitably maintained. Thereby, generation | occurrence | production of a bubble residue and a water pool can be suppressed.

  Further, the bottom surface is narrow toward the drain groove. Thereby, the washing water flowing through the bottom surface concentrates on the drainage groove. That is, it is possible to suppress the washing water from spreading in the width direction of the bowl portion.

  Further, the bottom surface is inclined downward toward the drain groove. As a result, the washing water gains momentum due to the inclination of the bottom surface, and flows into the drainage groove with a sufficient water force.

  Further, the bottom wall of the drainage groove is inclined downward toward the drainage hole. As a result, the washing water that has flowed into the drainage grooves concentrates in the drainage holes and increases the water force to flow into the drainage holes.

  The drain holes may be provided on the side wall along the long side of the drain groove. By using a plurality of drain holes, the area of each drain hole can be reduced. This makes it difficult for foreign matter to flow in. Moreover, even if the area of each drainage hole is reduced, a sufficient drainage area can be ensured with the total area.

  Further, the bottom wall of the drainage groove is provided with a convex portion protruding upward between the drainage hole and the drainage hole. As a result, the cleaning water flows into one of the drain holes between the drain holes. That is, water drainage between the drain hole and the drain hole is good.

  Further, the flow path from the drain hole to the drain pipe is formed by joining a communication part, which is a separate member from the bowl part, to the bowl part, and the communication part is a joining position with the bowl part. The height of the bottom surface of the flow path is lower than the height of the lower surface of the drain hole.

  This ensures that the cleaning water flows to the communication portion without stagnation between the bowl portion and the communication portion. That is, the water drainage at the joining position with the bowl portion in the communication portion is good.

  According to one aspect of the embodiment, it is possible to suppress the occurrence of bubble residue and water pool.

Drawing 1 is a top view showing a hand-washing machine concerning an embodiment. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is an enlarged view of a portion C in FIG. FIG. 5 is a perspective view showing the appearance of the hand-washing machine. FIG. 6 is a graph showing the drainage performance for each drain hole shape. FIG. 7 is an explanatory diagram of the dimensions of the drain holes. FIG. 8 is a plan view showing another example of a hand-washing machine.

  Hereinafter, embodiments of a hand-washing machine disclosed in the present application will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by embodiment shown below.

  Drawing 1 is a top view showing a hand-washing machine concerning an embodiment. In FIG. 1, in order to clarify the positional relationship of each part, an X axis, a Y axis, and a Z axis that are orthogonal to each other in three dimensions are defined. Also, in the coordinate axes of FIG. 1, the positive direction of the Z axis is the direction from the back to the front in the figure.

  Moreover, in FIG. 1, in order to express in three dimensions, the boundary line of the plane and curved surface (R) which are not normally visually recognized is shown by the thin line. Such a boundary line is also illustrated in FIGS. 5 and 8.

  As shown in FIG. 1, the hand washing machine 1 includes an attachment portion 2 and a bowl portion 3. The attachment portion 2 is a portion to which a faucet (not shown) such as a faucet that discharges cleaning water toward the bowl portion 3 is attached. The bowl portion 3 is a portion that receives the wash water discharged from the faucet and discharges the received wash water from a drain hole 12 to be described later to a drain pipe 4 below the bowl portion 3. In addition, although this embodiment demonstrates the hand-washing machine provided with the attaching part of a faucet, it is not limited to this, It is good also as omitting the attaching part of a faucet from a hand-washing machine. That is, the water faucet may be disposed on a wall or the like instead of being disposed on the hand washing machine.

  The bowl portion 3 includes a back surface 5, a bottom surface 6, a pair of side surfaces 7, 7, a front surface 8, and a drainage groove 10. Here, the back surface 5, the bottom surface 6, the pair of side surfaces 7, 7 and the front surface 8 are integrally formed, and a drainage groove 10 is provided between the back surface 5 and the bottom surface 6.

  The back surface 5 is provided on the arrangement side of the faucet. The back surface 5 is provided along the X-axis direction. The drainage groove 10 is provided along the horizontal direction of the back surface 5. The length of the long side of the drainage groove 10 is closer to the opening diameter of the drainage pipe 4 than the width of the back surface 5 in the horizontal direction.

  Further, the drainage groove 10 includes a side wall 11 on the bottom surface 6 side. In FIG. 1, the drainage groove 10 is indicated by diagonal lines. In the drain groove 10, drain holes 12, 12 are provided in the lower part of the side wall 11. The drain holes 12 and 12 discharge the cleaning water from the bowl portion 3 to the drain pipe 4 through a communication portion which will be described later with reference to FIGS. 3 and 4. Further, the drainage groove 10 includes a bottom wall 13. The drainage groove 10 is formed by a bottom wall 13 and a side wall 11 surrounding the bottom wall 13 from four directions.

  The bottom surface 6 is connected to the long side of the drainage groove 10, that is, the upper edge of the side wall 11. The front surface 8 is connected to the bottom surface 6 and is provided to be inclined downward toward the bottom surface 6. The pair of side surfaces 7, 7 are connected to the short side of the drainage groove 10, the bottom surface 6, and the front surface 8, and are provided to be inclined downward toward the bottom surface 6. In addition, the short side of the drainage groove 10 is a side substantially orthogonal to the long side, that is, a side along the Y-axis direction.

  As shown in FIG. 1, in the hand washer 1 according to the embodiment, the wash water discharged from the faucet falls to an arbitrary position of the bowl portion 3. In FIG. 1, an example of the dropping point of the cleaning water is indicated by “x”. The dropping point of the washing water varies depending on the direction of water discharge from the faucet and the amount of water discharged.

  The fallen wash water once spreads from the drop point, but flows toward the drainage groove 10 while being pushed back by the inclination of the pair of side surfaces 7, 7 and the front surface 8. Here, since the length of the long side of the drainage groove 10 is smaller than the width of the back surface 5 and the inclination of the pair of side surfaces 7, 7 and the front surface 8 is concentrated toward the drainage groove 10, the bowl The washing water discharged to the unit 3 concentrates on the drainage groove 10.

  Therefore, in the hand-washing machine 1 according to the embodiment, the water flow of the washing water flowing into the drainage groove 10 can be increased. As a result, the washing water flows completely, and the bubbles also flow along with the washing water, so that it is possible to suppress the occurrence of foam residue and water accumulation on the bottom surface 6, the pair of side surfaces 7, 7 and the front surface 8.

  Further, as described above, since the drainage groove 10 is short, the washing water can be guided to the drainage hole 12 while maintaining the water flow of the washing water flowing into the drainage groove 10. As a result, the washing water flows completely, and the foam flows together with the washing water, so that it is possible to suppress the occurrence of foam residue and water pool in the drainage groove 10.

  As shown in FIG. 1, the hand-washing machine 1 according to the embodiment is configured such that the bottom surface 6 becomes narrower toward the drainage groove 10. Further, the bottom surface 6 is configured to be inclined downward toward the drainage groove 10. Further, the bottom wall 13 of the drainage groove 10 is inclined downward toward the drainage hole 12. Details of these configurations will be described later with reference to FIGS.

  As shown in FIG. 1, the hand-washing machine 1 according to the embodiment has a configuration in which a plurality of drain holes 12 are provided along the long side of the drain groove 10. Further, the bottom wall 13 of the drain groove 10 is provided with a convex portion protruding upward between the drain hole 12 and the drain hole 12. Details of these configurations will also be described later with reference to FIGS.

  Moreover, as shown in FIG. 1, the hand-washing machine 1 which concerns on embodiment is a shape where the washing water which fell to the bowl part 3 flows upwards from the downward direction (positive direction of a Y-axis) in the figure, The shape of the vessel is arbitrary, and for example, the shape may be such that the washing water flows in the positive direction of the X axis.

  Hereinafter, the hand-washing machine 1 according to the embodiment will be described in more detail with reference to FIGS. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is an enlarged view of a portion C in FIG. 2 and 3 also define the X, Y, and Z axes that are three-dimensionally orthogonal to each other, as in FIG.

  Here, in the above-described conventional hand-washing machine, the long side of the drainage groove is close to the length of the bowl portion in the width direction. That is, the drainage groove was long. For this reason, the washing water flowing from the bottom surface to the drainage groove spreads in the width direction, and the water force may be reduced. Furthermore, the drainage holes are far from both ends of the drainage groove, and the washing water may stagnate in the drainage groove.

  As described above, when the washing water is stagnated in the drainage groove, there is a high possibility that a puddle is generated or a bubble residue is left in which bubbles that should normally flow with the washing water remain.

  Therefore, in the hand-washing machine 1 according to the embodiment, the length of the long side of the drainage groove 10 is shortened and each surface (the back surface 5, the bottom surface 6, the pair of side surfaces 7, 7 and the front surface 8) forming the bowl portion 3 is formed. The shape is integrated into the drainage groove 10. As a result, the washing water does not spread in the width direction of the bowl portion 3, and the water flow of the washing water flowing into the drainage groove 10 can be suitably maintained. Below, each surface and bowl 10 which form bowl part 3 are explained concretely.

  As shown in FIG. 2, in the bowl portion 3, the lower end edges of the pair of side surfaces 7 and 7 are connected to the bottom surface 6. The boundary between the bottom surface 6 and the pair of side surfaces 7 and 7 is formed in a round shape.

  In this way, the pair of side surfaces 7 and 7 are connected to the bottom wall 13 of the drainage groove 10 in the positive direction of the Y axis with respect to the bottom surface 6 in addition to being connected to the bottom surface 6. That is, the pair of side surfaces 7 and 7 form both side surfaces of the drainage groove 10. The boundary between the pair of side surfaces 7 and 7 and the bottom wall 13 is formed in a round shape. Thereby, the bottom wall 13 of the drainage groove 10 is inclined downward toward the drainage hole 12 in any direction along the X axis.

  A plurality of drain holes 12 are provided below the side wall 11. In FIG. 2, the case where the two drain holes 12 and 12 are provided is illustrated. According to this configuration, if the holes have the same shape, the total area of the drain holes 12 is doubled compared to the case where one drain hole 12 is provided. Here, the larger the total area of the drain holes 12 is, the larger the drainage amount of the washing water is. Therefore, by providing the plurality of drain holes 12, 12, a larger drainage amount can be obtained.

  On the other hand, when the total area of the drain holes 12 is the same, it is possible to reduce the area of each drain hole 12 in the case where a plurality of drain holes 12 are used, compared to the case where a single drain hole 12 is used. . Therefore, by using the plurality of drain holes 12, 12, as described above, it is possible to prevent the inflow of foreign matter while increasing the amount of drainage per unit time of the cleaning water. That is, drainage performance is improved by using a plurality of drain holes 12 and 12.

  Further, as described above, the drain holes 12 and 12 discharge the cleaning water from the bowl portion 3 to the drain pipe 4 (see FIG. 3). Here, if the distance between the drain holes 12, 12 and the drain pipe 4 is large, the tendency for the cleaning water to stay between the drain holes 12, 12 and the drain pipe 4 increases. Therefore, the drain holes 12 and 12 are preferably provided in the vicinity of the drain pipe 4.

  In addition, when installing the hand-washing machine 1, it is normal to lay out the hand-washing machine 1 according to the position of the drain pipe 4. For this reason, in the example of FIG. 2, the hand-washing machine 1 is installed so that the drain pipe 4 is located at the approximate center of the bowl portion 3. In the example of FIG. 2, the drain pipe 4 is installed so as to be positioned substantially at the center of the bowl portion 3. However, the present invention is not limited to this, and for example, the drain pipe 4 is installed in one end side. Also good.

  Further, as shown in FIG. 2, a rubber bush 20 is provided below each of the pair of side surfaces 7, 7. By providing this rubber bush 20, the risk of breakage of the hand-washing machine 1 during construction can be reduced.

  As shown in FIG. 3, the bottom surface 6 is inclined downward toward the drainage groove 10. According to such a configuration, the washing water gains momentum due to the inclination of the bottom surface 6 and flows into the drain groove 10 with a sufficient water force.

  Further, the bottom surface 6 becomes narrower toward the drainage groove 10 (see FIG. 1). According to this configuration, the cleaning water flowing through the bottom surface 6 concentrates on the drainage groove 10. Thereby, it can suppress that washing water spreads in the width direction of bowl part 3. Furthermore, the flow rate of the edge which is a boundary with a pair of side surfaces 7 and 7 in the bottom face 6 increases as cleaning water goes to the drainage groove 10. As a result, the washing water flows into the drainage groove 10 with a sufficient water flow.

  As shown in FIG. 3, the back surface 5 is connected to the bottom wall 13 of the drainage groove 10. The boundary between the back surface 5 and the bottom wall 13 is formed in a round shape. By including the rounded shape of the bottom wall 13 of the drainage groove 10, the bottom wall 13 of the drainage groove 10 is inclined downward toward the negative direction of the Y axis. That is, the bottom wall 13 of the drain groove 10 is inclined downward toward the drain hole 12.

  Furthermore, as shown in FIG. 2, the bottom wall 13 of the drainage groove 10 is inclined downward toward the drainage holes 12 and 12 in any direction along the X axis. Accordingly, the bottom wall 13 of the drainage groove 10 is inclined downward toward the drainage holes 12 and 12 with respect to both the X axis and the Y axis. According to this configuration, the cleaning water that has flowed into the drainage groove 10 concentrates in the drainage holes 12 and 12 and increases the water flow to flow into the drainage holes 12 and 12.

  As shown in FIG. 2, the bottom wall 13 of the drain groove 10 is provided with a convex portion 14 that protrudes upward between the drain hole 12 and the drain hole 12. According to this configuration, the wash water between the drain holes 12 and 12 flows into one of the drain holes 12 and 12. Thereby, the drainage between the drain hole 12 and the drain hole 12 becomes favorable.

  As shown in FIG. 3, the front surface 8 is inclined downward toward the bottom surface 6 with a steeper slope than the inclination of the bottom surface 6. As shown in FIG. 2, the front surface 8 has a width at the top edge that is close to the width of the bowl portion 3, and the length in the width direction becomes shorter toward the bottom surface 6 (the positive direction of the Y axis).

  Moreover, as shown in FIG. 3, the faucet 21 which discharges washing water is provided in the attachment hole 2a of the attachment part 2. As shown in FIG. As described above, the wash water discharged from the faucet 21 falls to any position on each surface of the bowl portion 3.

  The hand-washing machine 1 is made of earthenware, for example, and is integrally formed including the attachment part 2 and the bowl part 3. On the other hand, the communication part 22 (refer FIG. 3) provided in the lower part of the bowl part 3 is a different member from the attachment part 2 and the bowl part 3. FIG. And the hand-washing machine 1 is formed because the communication part 22 is joined to the bowl part 3. FIG.

  Here, the communication part 22 is demonstrated with reference to FIG. In addition, in FIG. 4, the drainage hole 12 which does not appear normally is shown for convenience of explanation. The communication part 22 is made of ceramics, for example, and forms a flow path between the drain hole 12 and the drain pipe 4 in the bowl part 3. For example, after bonding the communication part 22 to the bowl part 3, the communication part 22 is integrally joined to the bowl part 3 by firing the hand-washing machine 1.

  As shown in FIG. 4, in the communication portion 22, the height of the bottom surface 22 a of the flow path at the joining position with the bowl portion 3 is lower than the height of the lower surface 12 a of the drain hole 12. Further, the height of the lower surface 12 a of the drain hole 12 is lower than the height of the bottom wall 13 of the drain groove 10. According to such a configuration, the height of the bottom wall 13 of the drainage groove 10 is the highest, and the height becomes lower as it goes downstream of the lower surface 12a of the drainage hole 12 and the bottom surface 22a of the flow path in the communication portion 22. Accordingly, the washing water smoothly flows in the order of the bottom wall 13 of the drainage groove 10, the lower surface 12a of the drainage hole 12, and the bottom surface 22a of the flow path, and does not stagnate between the bowl portion 3 and the communication portion 22. It will surely flow to 22. That is, the water drainage at the joining position of the communication part 22 is good.

  FIG. 5 is a perspective view showing the appearance of the hand-washing machine 1. As shown in FIG. 5, since the drainage hole 12 (refer FIG. 2 etc.) is provided in the drainage groove 10, the drainage hole 12 cannot be seen in appearance from the hand-washing machine 1. FIG. Thereby, the designability of the hand-washing machine 1 increases.

  By the way, it is preferable that the drain hole 12 is a long hole (lateral hole) whose long side is along the long side of the drain groove 10. This point will be described with reference to FIGS. 6 and 7 as to the superiority when the drain hole 12 is a horizontal hole. FIG. 6 is a graph showing the drainage performance for each shape of the drainage hole 12. FIG. 7 is an explanatory diagram of the dimensions of the drain hole 12.

  In FIG. 6, the drainage performance of the drain hole 12 (see FIG. 2 and the like) is represented by the relationship between the level of the wash water in the drain groove 10 and the flowing area of the wash water flowing through the drain hole 12. Here, since the amount of drainage from the drainage hole 12 is larger as the flowing water area is larger, it can be said that the larger the flowing water area at the same water level, the better the drainage performance. In FIG. 6, two types of horizontal holes (horizontal hole a and horizontal hole b) having the same height (short side) and different width (long side), and a conventional vertical hole as a comparative example, Is shown. Here, the horizontal hole a is a hole wider than the horizontal hole b.

  As shown in FIG. 6, it can be seen that the drain hole 12 has the highest drainage performance as the shape of the drain hole 12. On the other hand, it can be seen that the conventional vertical holes have lower drainage performance than the two types of horizontal holes a and b. This is because in the case of a vertical hole, a sufficient flowing water area cannot be secured unless the water level in the drain groove 10 rises. On the other hand, the horizontal hole a and the horizontal hole b can ensure a large flowing water area even if the water level is low.

  Further, as shown in FIG. 7, the long side of the drain hole 12 is preferably set to be equal to or smaller than the inner diameter L of the drain pipe 4. Specifically, the dimension of the long side is preferably 28 to 22 mm or less, for example, according to the inner diameter L (28 to 22 mm) of the drain pipe 4. The reason for this dimension is to prevent clogging of foreign matter at the drain trap 23 in the drain pipe 4.

  The short side dimension of the drain hole 12 is preferably about 15 mm, for example. The reason for this dimension is, for example, to prevent a person (particularly a child) from getting out of hand when a finger or the like is inserted.

  According to these configurations, the drainage trap 23 can be prevented from being clogged with high drainage performance, and it is possible to prevent a finger or the like from being inserted into the drainage hole 12 so that it cannot be removed. That is, it is possible to simultaneously improve drainage performance, cleanability and safety.

  The total area of the drain holes 12 and 12 is preferably in the range of 2 to 60% of the area of the bottom wall 13 of the drain groove 10. Especially, about 30% is more preferable. When the total area of the drain holes 12 and 12 is less than 2% of the area of the bottom wall 13, the flow of the cleaning water becomes extremely worse, and the possibility that the cleaning water stagnates in the drain groove 10 increases. Further, if the total area of the drain holes 12 and 12 is larger than 60% of the area of the bottom wall 13, the possibility that the washing water is stagnated between the drain holes 12 and 12 and the drain pipe 4 is increased.

  Moreover, in the handwashing machine 1, when the dimensions of the bottom wall 13 of the drainage groove 10 are, for example, the outer dimensions of the handwashing machine 1 are width (X-axis direction) 355 ± 5 mm and depth (Y-axis direction) 275 ± 5 mm, The width is 84 mm and the depth is 25 mm.

  As described above, in the hand washing machine 1 according to the embodiment, the length of the long side of the drainage groove 10 is closer to the diameter of the drainage pipe 4 than the width of the back surface 5. In addition, the bottom surface 6 and the pair of side surfaces 7, 7 are in a shape that is integrated into the drainage groove 10. For this reason, the washing water does not spread but concentrates in the drainage groove 10, and the water flow of the washing water flowing into the drainage groove 10 can be suitably maintained. As a result, the washing water flows completely, and the bubbles also flow with the washing water, so that it is possible to suppress the generation of foam residue and water pools.

  In the hand-washing machine 1 according to the above-described embodiment, the drainage groove 10 is provided at the approximate center in the width direction (X-axis direction) of the bowl portion 3 in accordance with the position of the drainage pipe 4. And about the width direction of the bowl part 3, it formed in the symmetrical shape centering | focusing on the drain groove 10. FIG. However, the present invention is not limited to this, and the drainage groove 10 may be provided at an arbitrary position on the assumption that the drainage groove 10 is aligned with the position of the drainage pipe 4. For example, the bowl portion 3 may be formed such that the drainage groove 10 is biased in any of the width direction (X-axis direction) and the recesses are concentrated on the drainage groove 10 provided at the offset position.

  From here, the other example of the hand-washing machine 1 is demonstrated. FIG. 8 is a plan view showing another example of the hand-washing machine 1. In addition, in the other example (hand-washing machine 30) demonstrated from now on, the description of the same or equivalent part as the hand-washing machine 1 mentioned above is abbreviate | omitted, and a different part is demonstrated. In another example (hand washing machine 30), the X-axis direction is defined as depth and the Y-axis direction is defined as width.

  As shown in FIG. 8, in the hand washer 30, the wash water discharged from the faucet flows in the positive direction of the X axis in the figure. The drainage groove 40 is arranged in a biased direction in the positive direction of the Y axis in the figure, and is oriented such that the drainage groove 10 of the hand-washing machine 1 (see FIG. 1) described above is rotated 90 degrees clockwise.

  The bowl portion 31 has a shape in which a bottom surface 33 and a pair of side surfaces 34 a and 34 b are integrated into the drainage groove 40. Further, the pair of side surfaces 34 a and 34 b are asymmetric with respect to the bottom surface 33. In FIG. 8, as in FIG. 1, an example of the dropping point of the cleaning water is indicated by “x”. Further, the user of the hand washing machine 30 extends his / her hand or the like in the positive direction of the Y axis and inserts it into the bowl portion 31.

  Further, in the hand-washing machine 30, when the dimensions of the bottom wall 41 of the drainage groove 40 are, for example, the outer dimensions of the hand-washing machine 30 are width (Y-axis direction) 185 ± 5 mm and depth (X-axis direction) 355 ± 5 mm, The width is 72 mm and the depth is 25 mm.

  In such a handwasher 30, the length of the long side of the drainage groove 40 is closer to the diameter of the drainage pipe 4 than the width of the back surface 32, as in the handwasher 1 described above. In addition, the bottom surface 33 and the pair of side surfaces 34 a and 34 b are integrated into the drainage groove 40. For this reason, the wash water does not spread but concentrates on the drainage groove 40, and the water flow of the wash water flowing into the drainage groove 40 can be suitably maintained. As a result, the washing water flows completely, and the bubbles also flow with the washing water, so that it is possible to suppress the generation of foam residue and water pools.

  The hand-washing machine 1 (hand-washing machine 30) described above is not limited in use to a person washing his / her hand, and can also be applied to a basin in which a person washes his face and the like. That is, a washbasin is included in the category of the hand-washing machine 1 (hand-washing machine 30) mentioned above.

  Moreover, although the case where the hand-washing machine 1 (hand-washing machine 30) is provided with the faucet attachment part was demonstrated in the hand-washing machine 1 (hand-washing machine 30) mentioned above, it is not limited to this, The hand-washing machine 1 (hand-washing machine 30) It is good also as omitting the attachment part of a faucet. That is, the water faucet may be arranged on a wall or the like instead of being arranged in the hand washing machine 1 (hand washing machine 30).

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Washing machine 2 Mounting part 3 Bowl part 4 Drain pipe 5 Back surface 6 Bottom surface 7 Side surface 8 Front surface 10 Drain groove 11 Side wall 12 Drain hole 12a (Drain hole) bottom surface 13 Bottom wall 21 Faucet 22 Communication part 22a (Flow in communication part) Bottom of the road

Claims (7)

A bowl portion for receiving the washing water discharged from the faucet and discharging the washing water from the drain hole to the drain pipe,
The bowl part is
A back surface provided on the arrangement side of the faucet;
Provided along the horizontal direction of the back surface, the length is closer to the diameter of the drain pipe than the horizontal width of the back surface, and is formed by a bottom wall and a side wall that surrounds the bottom wall from four sides and is inside A drainage groove having the drainage hole,
A bottom surface connected to the long side of the drainage groove;
A front surface connected to the bottom surface and inclined downward toward the bottom surface;
A hand washing machine comprising: a short side of the drainage groove, the bottom surface, and a pair of side surfaces provided to be inclined downward toward the bottom surface. The bottom surface is
The hand-washing machine according to claim 1, wherein the hand-washing machine is narrow toward the drain. The bottom surface is
The hand-washing machine according to claim 1 or 2, wherein the hand-washing machine is inclined downward toward the drainage groove. The bottom wall of the drainage groove is
The hand-washing machine according to claim 1, 2 or 3, wherein the hand-washing machine is inclined downward toward the drain hole. The drain hole is
The hand washing machine according to claim 1, wherein a plurality of the side walls are provided along the long side of the drainage groove. The bottom wall of the drainage groove is
The hand-washing machine according to claim 5, further comprising a convex portion protruding upward between the drain hole and the drain hole. The flow path from the drain hole to the drain pipe is:
It is formed by joining a communication part which is a separate member from the bowl part to the bowl part,
The communication part is
The height of the bottom face of the said flow path in a joining position with the said bowl part is lower than the height of the lower surface of the said drain hole. The hand washing machine as described in any one of Claims 1-6 characterized by these.

Images