Wash basin and wash stand

Abstract

To smoothly discharge dirt into an exhaust hole.SOLUTION: In a wash basin 12 including a bottom part 31 and a lateral face part 32 surrounding the bottom part 31, the bottom part 31 includes: an exhaust hole 43; a bottom surface 41 extending from the lateral face part 32 toward the exhaust hole 43 in the front-back direction; and a groove surface 42 that is connected to the lateral face part 32 on one side and to the bottom surface 41 on the other side in the front-back direction, is lower than the bottom surface 41, extends in a left-right direction orthogonal to the front-back direction with regard to the exhaust hole 43, and is inclined downward toward the exhaust hole 43. The lateral face part 32 has a recess 46 that serves as a direction changing part for changing the flow direction of a fluid flowing from an end part side to the exhaust hole 43 side so that the flow directions of a fluid flowing from each end part of the groove surface 42 in the left-right direction toward the exhaust hole 43 may not be mutually parallel and opposite in a plan view between the exhaust hole 43 and the lateral face part 32.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a washbasin and a washstand. [Background technology]

[0002] Patent Document 1 discloses a washbasin in which water is drained through a drain outlet. Patent Document 1 describes that a flat portion is provided on the front side of the bottom of the bowl, and a groove is provided on the back side, and that water discharged onto the flat portion flows from the flat portion to the groove, and then from the groove to the drain outlet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-143141 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the structure of Patent Document 1, for example, water flowing through the groove from the right toward the drain outlet and water flowing through the groove from the left toward the drain outlet may collide between the drain outlet and the side surface at the back, which may cause dirt to adhere to the side surface at the back. In a washbasin, it is required that dirt be smoothly flushed down the drain outlet to maintain cleanliness.

[0005] In view of the above problems, the present invention aims to provide a washbasin and a washstand that can smoothly flush dirt down a drain. [Means for solving the problem]

[0006] In order to solve the above problem, the washbasin according to the first aspect of the present disclosure is a washbasin including a bottom and side portions surrounding the bottom, wherein the bottom has a drain outlet, a bottom surface extending in a first direction from the side portions toward the drain outlet, and a groove surface which is connected to the side portions on one side in the first direction and connected to the bottom surface on the other side, is lower than the bottom surface, extends in a second direction perpendicular to the first direction relative to the drain outlet, and slopes downward toward the drain outlet, and the side portion has a direction change portion between the drain outlet and the side portion which changes the flow direction of the fluid flowing from the end side to the drain outlet so that the flow directions of the fluid flowing from each end side of the groove surface in the second direction toward the drain outlet are not parallel and opposite to each other in a planar view.

[0007] With this configuration, by changing the flow direction of the fluid flowing from the end side to the drain side, the collision energy of the water is reduced and the scattering of water is suppressed, which in turn suppresses the scattering of dirt and allows the dirt to be smoothly washed away into the drain.

[0008] Moreover, in the washbasin according to the second aspect of the present disclosure, the direction changing portion is a recess provided in the side portion.

[0009] According to this configuration, the provision of the recessed portion makes it possible to effectively change the flow direction of the fluid flowing toward the drain outlet, which means that dirt can be smoothly flushed down the drain outlet.

[0010] Furthermore, in the washbasin according to the third aspect of the present disclosure, the recess is provided in a position closest to the drain outlet on the side surface, and has a shape recessed in the first direction.

[0011] With this configuration, the flow direction of the fluid can be changed around the drain outlet, allowing dirt to be smoothly flushed down the drain outlet.

[0012] In addition, in the washbasin according to the fourth aspect of the present disclosure, the recess is shaped so that, when viewed in a plan view, the width of the recess in the first direction is greatest at the position of the drain outlet in the second direction, and the width of the recess in the first direction decreases toward the second direction.

[0013] According to this configuration, the width becomes smaller as it gets farther away from the drain outlet, so that the flow direction of the fluid can be smoothly changed around the drain outlet, allowing dirt to be washed away.

[0014] Furthermore, in the washbasin according to the fifth aspect of the present disclosure, the recess has a shape in which the width of the recess in the first direction decreases toward the height direction.

[0015] This configuration effectively changes the flow direction of the fluid at a height where water flows easily, allowing dirt to be smoothly flushed down the drain.

[0016] In addition, in a washbasin according to a sixth aspect of the present disclosure, the direction changing portion is a convex portion provided on the side surface portion.

[0017] According to this configuration, the provision of the convex portion can effectively change the flow direction of the fluid flowing toward the drain outlet, which means that dirt can be smoothly flushed down the drain outlet.

[0018] Furthermore, in a washbasin according to a seventh aspect of the present disclosure, the convex portion is provided at a position on the side surface closest to the drain outlet and has a shape that protrudes in the first direction.

[0019] With this configuration, the flow direction of the fluid can be changed around the drain outlet, allowing dirt to be smoothly flushed down the drain outlet.

[0020] In addition, in the washbasin according to the eighth aspect of the present disclosure, the convex portion has a shape in which, when viewed in a plane, the width in the first direction is greatest at the position of the drain outlet in the second direction, and the width in the first direction decreases toward the second direction.

[0021] According to this configuration, the width becomes smaller as it gets farther away from the drain outlet, so that the flow direction of the fluid can be smoothly changed around the drain outlet, allowing dirt to be washed away.

[0022] In addition, in the washbasin according to the ninth aspect of the present disclosure, the convex portion has a shape in which the width in the first direction decreases toward the height direction.

[0023] This configuration effectively changes the flow direction of the fluid at a height where water flows easily, allowing dirt to be smoothly flushed down the drain.

[0024] Furthermore, a washbasin according to a tenth aspect of the present disclosure includes the above washbasin and a faucet that discharges water onto the bottom surface of the washbasin.

[0025] This configuration allows for the construction of a washbasin that allows dirt to be smoothly flushed down the drain. [Effects of the Invention]

[0026] The washbasin and washstand according to the present invention allow dirt to be smoothly flushed down the drain. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a perspective view showing an example of the overall configuration of a bathroom vanity according to a first embodiment of the present disclosure. [Figure 2] FIG. 2 is a perspective view showing an example of the configuration of the washbasin in FIG. 1. [Figure 3] FIG. 2 is a plan view showing an example of the configuration of the washbasin in FIG. [Figure 4] 4 is a cross-sectional view of the washbasin of FIG. 3 taken along line IV-IV. [Figure 5] FIG. 4 is a cross-sectional view of the VV surface of the washbasin of FIG. 3. [Figure 6] 6 is a cross-sectional view of the washbasin of FIG. 3 taken along line VI-VI. [Figure 7] 7 is a cross-sectional view of the washbasin of FIG. 3 taken along line VII-VII. [Figure 8]8 is a cross-sectional view of the washbasin of FIG. 3 taken along line VIII-VIII. [Figure 9] FIG. 4 is a cross-sectional view of the washbasin taken along plane IV-IV. [Figure 10] FIG. 10 is a plan view showing an example of the configuration of a reference washbasin, which is a washbasin of a reference example. [Figure 11] FIG. 11 is a perspective view showing a configuration example of the reference washbasin of FIG. [Figure 12] FIG. 4 is a plan view showing the flow of water in the washbasin of FIG. 3. [Figure 13] FIG. 10 is a plan view showing an example of the configuration of a washbasin according to a second embodiment. [Figure 14] FIG. 14 is a perspective view showing an example of the configuration of the washbasin in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, each embodiment of the present disclosure will be described with reference to the accompanying drawings. To facilitate understanding of the description, the same components in each drawing will be denoted by the same reference numerals as much as possible, and duplicate descriptions will be omitted.

[0029] ---First embodiment--- First, the first embodiment will be described.

[0030] <Overall structure> Fig. 1 is a perspective view schematically illustrating an example of the overall configuration of a bathroom vanity 1 according to a first embodiment of the present disclosure. As shown in Fig. 1, the bathroom vanity 1 includes a mirror cabinet 2 and a washbasin 3. The bathroom vanity 1 is installed by being fixed to, for example, a floor or a wall.

[0031] 1, the left-right direction, the up-down direction, and the front-rear direction are set relative to a user standing in front of the bathroom vanity 1. In this embodiment, the first direction is the front-rear direction, and the second direction is the left-right direction.

[0032] The mirror cabinet 2 is provided at the back (wall side) above the washbasin 3. A plurality of mirrors 4 are provided at the front side of the mirror cabinet 2. The mirrors 4 can be opened and closed, and a user can access the mirror cabinet 2 by opening the mirrors 4.

[0033] The washstand 3 is provided below the mirror cabinet 2. The washstand 3 includes a faucet 10, a cabinet 11, and a washbasin 12.

[0034] The faucet 10 is located at the bottom end of the mirror cabinet 2, in the center in the left-right direction. The location and shape of the faucet 10 are not limited. Water is supplied to the faucet 10 from a pipe located, for example, at the back of the cabinet 11, and the faucet 10 discharges water toward the washbasin 12. The faucet 10 discharges water toward (toward) the bottom surface 41, which will be described later.

[0035] Cabinet 11 is disposed below bathroom vanity 1. Cabinet 11 has multiple drawers for storage. For example, at the back of cabinet 11, drainage pipes, pipes for supplying water to faucet 10, electrical systems, etc. are disposed.

[0036] The washbasin 12 is provided above the cabinet 11. In other words, the washbasin 12 is supported by the cabinet 11. Figure 2 is a perspective view showing an example configuration of the washbasin 12. The washbasin 12 comprises a rim portion 21 and a bowl portion 22. The bowl portion 22 and the rim portion 21 are integrally molded from the same material. For example, the material is ceramic, resin, or the like.

[0037] The edge portion 21 is disposed around the bowl portion 22. For example, the right and left sides of the edge portion 21 have the same shape. For example, the width of the front side of the edge portion 21 is narrower than the widths of the right and left sides. The upper surface of the edge portion 21 has a flat shape, and the entire edge portion 21 is flat.

[0038] Bowl portion 22 is located in the center in the left-right direction of washbasin 12. Bowl portion 22 has a shape that is recessed downward from the upper surface of rim portion 21. Bowl portion 22 has a bottom portion 31 and a side portion 32.

[0039] Bottom portion 31 is the lowest surface of bowl portion 22, and bowl portion 22 is formed by bottom portion 31 being surrounded by side portion 32. Figure 3 is a plan view showing an example configuration of washbasin 12. Bottom portion 31 is rectangular. Side portion 32 includes a rear side portion 32a connected to the rear end of bottom portion 31, a front side portion 32b connected to the front end of bottom portion 31, a left side portion 32c connected to the left end of bottom portion 31, and a right side portion 32d connected to the right end of bottom portion 31. Rear side portion 32a, front side portion 32b, left side portion 32c, and right side portion 32d are each a wall surface extending upward from bottom portion 31. The front and rear ends of the bottom 31 each have a linear shape extending in the left-right direction, and the left and right ends each have a linear shape extending in the front-to-rear direction. The rear side surface 32a, the front side surface 32b, the left side surface 32c, and the right side surface 32d each have a curved bottom and are connected to the respective ends of the bottom 31. The rear side surface 32a and the left side surface 32c, the left side surface 32c and the front side surface 32b, the front side surface 32b and the right side surface 32d, and the right side surface 32d and the rear side surface 32a are each connected by a curved shape. In this way, the bottom 31 and the side surface portions 32 form a bowl shape.

[0040] The bottom portion 31 includes a bottom surface 41, a groove surface 42, and a drainage hole 43. In Fig. 3, the bottom surface 41 is indicated by a plurality of dots, and the groove surface 42 is indicated by parallel oblique lines.

[0041] The bottom surface 41 extends in both the left-right direction and the front-rear direction. That is, the bottom surface 41 extends in the front-rear direction from the side surface portion 32 toward the drain outlet 43. The bottom surface 41 then spreads out to and is connected to the front side surface portion 32b, the left side surface portion 32c, and the right side surface portion 32d. The rear side of the bottom surface 41 is connected to the groove surface 42.

[0042] FIG. 4 is a cross-sectional view taken along plane IV-IV in FIG. 3. FIG. 5 is a cross-sectional view taken along plane VV in FIG. 3. FIG. 6 is a cross-sectional view taken along plane VI-VI in FIG. 3. In plane IV-IV where the drain outlet 43 is located as shown in FIG. 4, and in planes where the drain outlet 43 is not located as shown in FIGS. 5 and 6, the bottom surface 41 slopes downward toward the groove surface 42. Specifically, the bottom surface 41 slopes downward from the front to the back. As shown in FIGS. 4, 5, and 6, the sloped surface of the bottom surface 41 is positioned higher than the groove surface 42. FIG. 7 is a cross-sectional view taken along plane VII-VII in FIG. 3. As shown in FIG. 7, the bottom surface 41 is not sloped in the left-right direction. Therefore, water discharged onto the bottom surface 41 flows along the slope from the front to the back and into the groove surface 42. The left-right slope of the bottom surface 41 is not limited to the above, and may be sloped.

[0043] Returning to FIG. 3 , the groove surface 42 extends in the left-right direction. That is, the groove surface 42 extends in the left-right direction relative to the drain outlet 43. The groove surface 42 is connected to the rear side surface portion 32a on the rear side, the left side surface portion 32c on the left side, and the right side surface portion 32d on the right side. That is, the groove surface 42 is in contact with the rear side surface portion 32a of the side surface portion 32 in the front-rear direction. The front side of the groove surface 42 is connected to the bottom surface 41 in the front-rear direction. The width of the groove surface 42 in the left-right direction is equal to the width of the bottom surface 41 in the left-right direction. Note that the width of the groove surface 42 and the width of the bottom surface 41 may be configured to be different.

[0044] 5 and 6, the groove surface 42 has a groove shape that is lower in height than the bottom surface 41. That is, the groove surface 42 has a shape that is recessed downward from the bottom surface 41. For example, the groove surface 42 has a shape that is curved downward in a cross section perpendicular to the left-right direction.

[0045] 8 is a cross-sectional view of plane VIII-VIII in FIG. 3. That is, FIG. 8 is a view showing a cross section of groove surface 42. As shown in FIG. 8, groove surface 42 has a shape that slopes downward from the left and right ends toward center C of bowl portion 22. That is, groove surface 42 has a shape that is lowest at center C. Drain outlet 43 is located at the position of center C. Therefore, groove surface 42 has a shape that slopes downward toward drain outlet 43.

[0046] Returning to Figure 3, drain outlet 43 is a circular hole that penetrates bowl portion 22 downward. Drain outlet 43 discharges water from washbasin 12 to the outside. Drain outlet 43 is connected to a drain pipe. As shown in Figure 1, a drain plug 45 is inserted into drain outlet 43, and when drain plug 45 opens drain outlet 43, water flows into drain outlet 43. When drain plug 45 closes drain outlet 43, drain outlet 43 is blocked, preventing water from flowing into drain outlet 43.

[0047] <Recess 46 of Side Portion 32> Next, the recess 46 of the side surface portion 32 will be described.

[0048] As shown in FIG. 3, in this embodiment, the side surface portion 32 has a recess 46 .

[0049] Specifically, the rear side surface portion 32a has a recess 46 recessed in the front-rear direction between it and the drain outlet 43. The recess 46 functions as a direction changer that changes the direction of water flowing along the groove surface 42 toward the drain outlet 43. The recess 46 changes the flow direction of water (fluid) flowing from each end side of the groove surface 42 in the left-right direction toward the drain outlet 43. In other words, the recess 46 changes the flow direction so that the flow direction of water flowing from the right end side toward the drain outlet 43 side and the flow direction of water flowing from the left end side toward the drain outlet 43 side do not collide in a state that is exactly opposite (parallel to and opposite to each other) in a plan view.

[0050] The drain outlet 43 is provided within the area of ​​the groove surface 42, and the groove surface 42 is formed to surround the drain outlet 43. The groove surface 42 has an arc shape S1 around the drain outlet 43, as shown in FIG. 3. That is, around the drain outlet 43, the boundary between the groove surface 42 and the bottom surface 41 has an arc shape S1. This arc shape S1 is an arc-shaped shape centered at the center point of the drain outlet 43. The groove surface 42 has a linear shape S2 on the side surface portion 32 side (left-right direction) of the arc shape S1, and extends from the arc shape S1 to the side surface portion 32. The linear shape S2 is parallel to the left-right direction. That is, the boundary between the groove surface 42 and the bottom surface 41 has an arc shape S1 around the drain outlet 43, and extends from the arc shape S1 in the left-right direction to each of the left side surface portion 32c and the right side surface portion 32d. As shown in FIG. 3, the width C1 of the groove surface 42 at the first position in the left-right direction is equal to the width C2 of the groove surface 42 at the second position.

[0051] The recess 46 is provided at a position closest to the drain outlet 43 on the rear side surface portion 32a. In a plan view such as that shown in FIG. 3, the recess 46 is recessed in the rear side surface portion 32a so as to move away from the center of the drain outlet 43. The recess 46 has a curved shape. Specifically, in a plan view, the width of the recess 46 is greatest in the front-rear direction at the position of the drain outlet 43 in the left-right direction (the recess is at its widest), and the width of the recess decreases toward the left-right direction. That is, the recess 46 is largest at the center in the left-right direction, and the recess becomes smaller as it moves away from the center in the left-right direction. In a plan view, the radius of curvature of the recess 46 is preferably greater than the radius of curvature of the arc shape S1 of the groove surface 42. That is, the recess 46 has a gently curved shape. Furthermore, the width of the recess 46 in the left-right direction in a plan view is preferably greater than the size of the drain outlet 43.

[0052] 2 and 4, the width of the recess 46 decreases in the upward direction (height direction). That is, as shown in FIG. 4, the recess 46 has a shape in which the width of the recess decreases in the upward direction. For example, the height of the recess 46 is set to a position lower than the edge 21. As shown in FIG. 4, the lower end of the recess 46 contacts the surface of the groove surface 42.

[0053] In addition, in the cross section shown in Figure 4, the inclined surface 47 of the drain outlet 43 and the upper surface 48 of the recess 46 are parallel. By making the inclined surface 47 and the surface 48 parallel in this way, the mold for the bowl portion 22 can be removed in the parallel direction F when manufacturing the washbasin 12. Even with the recess 46 provided in this way, it is possible to manufacture the washbasin 12 using a mold.

[0054] Fig. 9 is a cross-sectional view of the washbasin 3 taken along the IV-IV plane. As shown in Fig. 9, drainage piping 49 is provided below the drain outlet 43. For example, in the example of Fig. 9, space 50 is the space for arranging the piping 49, etc. By providing a recess 46, it is possible to arrange the drain outlet 43 further back, which increases the depth of the cabinet 11 and allows it to be made larger.

[0055] <Comparison with reference example> Next, a comparison between the washbasin 12 of this embodiment and a reference example will be described.

[0056] Figure 10 is a plan view showing an example of the configuration of a reference washbasin 100, which is a washbasin in a reference example. Figure 11 is a perspective view showing an example of the configuration of the reference washbasin 100. Like the washbasin 12 in this embodiment, the reference washbasin 100 has a bottom surface 101, a groove surface 102, and a rear side surface portion 132a. However, the rear side surface portion 132a of the reference washbasin 100 does not have a recess 46.

[0057] When water is discharged into area A1 of bottom surface 101 of washbasin 100, it flows from bottom surface 101 into groove surface 102, just as in washbasin 12. Then, water flows from both the left and right sides of groove surface 102 toward the center (toward drain outlet 43). If recess 46 were not formed, the flow direction of water flowing from the right side toward the center and the flow direction of water flowing from the left side toward the center could be parallel but opposite to each other. In such a case, water could collide in area A2 between drain outlet 43 and the rear side surface, causing splashing. When water splashes, dirt flowing with the water also splashes, and dirt could adhere to the rear side surface portion 132a, as shown by dirt A3 in FIG. 11, for example.

[0058] In contrast, the rear side surface portion 32a according to this embodiment has a recess 46. FIG. 12 is a plan view showing the flow of water in the washbasin 12 according to this embodiment of FIG. 3. In FIG. 12, the bottom surface 41 is indicated by multiple dots, and the groove surface 42 is indicated by parallel diagonal lines. As shown in FIG. 12, in the washbasin 12 according to this embodiment, water discharged from the faucet 10 lands in region B1 of the bottom surface 41. The water then spreads across the bottom surface 41 and flows toward the groove surface 42 due to the slope. The water that flows toward the groove surface 42 also flows toward the drain outlet 43 due to the slope. At this time, the formation of the recess 46 in the rear side surface portion 32a changes the direction of the water flow in region B2 between the rear side surface portion 32a and the drain outlet 43. Specifically, the formation of the recess 46 allows water flowing from the right side and water flowing from the left side in region B2 to escape toward the recess 46. That is, in region B2, the direction of the water flowing from the right side and the water flowing from the left side is changed toward the recess 46 (rear side) in region B2. This reduces the collision energy between the water flowing from the right side and the water flowing from the left side in region B2, suppressing water splashing. Therefore, in washbasin 12, compared to reference washbasin 100, splashing of dirt is suppressed and dirt can be smoothly flushed down drain outlet 43. Furthermore, even when the amount of water is small, dirt can be smoothly flushed down drain outlet 43. Furthermore, because water is effectively guided to drain outlet 43, even when the amount of water temporarily increases, water is prevented from accumulating, lifting up dirt, and adhering to side portion 32.

[0059] <Action and effect> As described above, the washbasin 12 of this embodiment is a washbasin 12 that includes a bottom 31 and a side portion 32 that surrounds the bottom 31, and the bottom portion 31 is provided with a drain outlet 43, a bottom surface 41 that extends in a first direction from the side portion 32 toward the drain outlet 43, and a groove surface 42 that is connected to the side portion 32 on one side in the first direction and to the bottom surface 41 on the other side, is lower than the bottom surface 41, extends in a second direction perpendicular to the first direction relative to the drain outlet 43, and slopes downward toward the drain outlet 43, and the side portion 32 has direction change portions (recesses 46, protrusions 51) between the drain outlet 43 and the side portion 32 that change the flow direction of the fluid flowing from the end side toward the drain outlet 43 so that the flow directions of the fluid flowing from each end side of the groove surface 42 in the second direction toward the drain outlet 43 are not parallel to each other and opposite directions when viewed in a plane.

[0060] According to this configuration, by changing the flow direction of the fluid flowing from the end side to the drain outlet 43 side, the collision energy of the water is reduced and the scattering of water is suppressed. Therefore, the scattering of dirt is suppressed and the dirt can be smoothly washed away into the drain outlet 43.

[0061] In addition, in the washbasin 12, the direction change portion is a recess 46 provided in the side portion 32.

[0062] According to this configuration, by providing the recess 46, it is possible to effectively change the flow direction of the fluid flowing toward the drain outlet 43. That is, it is possible to smoothly flow the dirt toward the drain outlet 43.

[0063] Furthermore, in the washbasin 12, the recess 46 is provided at a position closest to the drain outlet 43 on the side surface portion 32, and has a shape recessed in the first direction.

[0064] According to this configuration, the flow direction of the fluid can be changed around the drain outlet 43, and dirt can be smoothly flushed down to the drain outlet 43.

[0065] In addition, in the washbasin 12, the recess 46 has a shape in which, when viewed in a plane, the width of the recess in the first direction is greatest at the position of the drain outlet 43 in the second direction, and the width of the recess in the first direction decreases toward the second direction.

[0066] According to this configuration, the width becomes smaller as it gets farther away from the drain outlet 43, so that the flow direction of the fluid can be smoothly changed around the drain outlet 43, and dirt can be washed away.

[0067] Furthermore, in the washbasin 12, the recess 46 has a shape in which the width of the recess in the first direction decreases toward the height direction.

[0068] This configuration makes it possible to effectively change the flow direction of the fluid at a height where water can easily flow. That is, dirt can be smoothly flushed down to the drain outlet 43.

[0069] --- Second embodiment --- Next, a second embodiment will be described.

[0070] In the second embodiment, a case will be described in which a direction change portion different from the recess 46 of the first embodiment is used. Note that a description of the same points as in the first embodiment will be omitted. Also, the second embodiment can be combined with the first embodiment.

[0071] In the second embodiment, the rear side surface portion 32a, which contacts the groove surface 42 at the rear side, has a convex portion 51 as a direction change portion. Fig. 13 is a plan view showing an example configuration of the washbasin 12 according to this embodiment. In Fig. 13, the bottom surface 41 is indicated by multiple dots, and the groove surface 42 is indicated by parallel oblique lines. Fig. 14 is a perspective view showing an example configuration of the washbasin 12 according to this embodiment.

[0072] The rear side surface portion 32a has a protrusion 51 that protrudes in the front-rear direction between the rear side surface portion 32a and the drain outlet 43. The protrusion 51 is provided at a position on the rear side surface portion 32a closest to the drain outlet 43. In a plan view such as FIG. 13, the protrusion 51 protrudes from the rear side surface portion 32a toward the center of the drain outlet 43. As shown in FIG. 13, the protrusion 51 has a curved shape. Specifically, in a plan view, the protrusion 51 has a width (width in the front-rear direction) that is greatest at the position of the drain outlet 43 in the left-right direction and decreases in width toward the left-right direction. In other words, the protrusion length increases as it approaches the center in the left-right direction. Note that, in a plan view, the radius of curvature of the protrusion 51 is preferably greater than the radius of curvature of the arc shape S1 of the groove surface 42. Furthermore, the width of the protrusion 51 in the left-right direction is preferably greater than the size of the drain outlet 43. In particular, it is preferable that the width of the convex portion 51 in the left-right direction is greater than the width of the arc shape S1 of the groove surface 42 in the left-right direction.

[0073] 14, the protrusion of the convex portion 51 gradually decreases in the upward direction (height direction). For example, the height of the convex portion 51 is set to a position lower than the edge portion 21. The lower end of the convex portion 51 contacts the surface of the groove surface 42. In other words, the convex portion 51 has a shape that protrudes toward the front side while contacting both the rear side surface portion 32a and the groove surface 42.

[0074] 13, the provision of the protrusion 51 effectively suppresses water scattering in the region B2 between the drain outlet 43 and the rear side surface. Specifically, in the region B2, the flow directions of the water flowing from the right side and the water flowing from the left side are changed and no longer exactly opposite (parallel and opposite directions), so the collision energy is small and water scattering is suppressed. As a result, scattering of dirt is suppressed and dirt can be smoothly flushed into the drain outlet 43.

[0075] <Action and effect> As described above, in the washbasin 12 according to this embodiment, the direction changing portion is the convex portion 51 provided on the side surface portion 32.

[0076] According to this configuration, by providing the convex portion 51, it is possible to effectively change the flow direction of the fluid flowing toward the drain outlet 43. That is, it is possible to smoothly flush the dirt toward the drain outlet 43.

[0077] Furthermore, in washbasin 12, protrusion 51 is provided at a position closest to drain outlet 43 on side surface portion 32, and has a shape that protrudes in the first direction.

[0078] According to this configuration, the flow direction of the fluid can be changed around the drain outlet 43, and dirt can be smoothly flushed down to the drain outlet 43.

[0079] In addition, in the washbasin 12, the convex portion 51 has a shape in which, when viewed in a plan view, the width in the first direction is greatest at the position of the drain outlet 43 in the second direction, and the width in the first direction decreases toward the second direction.

[0080] According to this configuration, the width becomes smaller as it gets farther away from the drain outlet 43, so that the flow direction of the fluid can be smoothly changed around the drain outlet 43, and dirt can be washed away.

[0081] Furthermore, in the washbasin 12, the convex portion 51 has a shape in which the width in the first direction decreases toward the height direction.

[0082] This configuration makes it possible to effectively change the flow direction of the fluid at a height where water can easily flow. That is, dirt can be smoothly flushed down to the drain outlet 43.

[0083] <Modification> The present disclosure is not limited to the above-described embodiments. In other words, designs obtained by appropriately modifying the above-described specific examples by a person skilled in the art are also included within the scope of the present disclosure as long as they include the features of the present disclosure. Furthermore, the elements of the above-described embodiments and the following modifications can be combined to the extent technically possible, and combinations of these can also be included within the scope of the present disclosure as long as they include the features of the present disclosure.

[0084] For example, in the first and second embodiments, the first direction is the front-to-rear direction and the second direction is the left-to-right direction, but the first direction and the second direction are not limited to the left-to-right direction and the front-to-rear direction, respectively. For example, the first direction may be the left-to-right direction and the second direction may be the front-to-rear direction.

[0085] Furthermore, in the first and second embodiments, the groove surface 42 contacts the rear side surface portion 32a on the rear side, and therefore the rear side surface portion 32a has the recessed portion 46 and the protruding portion 51, but this is not limited to the case where the recessed portion 46 and the protruding portion 51 are provided on the rear side surface portion 32a depending on the position of the groove surface 42. For example, if the groove surface 42 is provided on the front side, the recessed portion 46 and the protruding portion 51 may be provided on the front side surface portion 32b. [Explanation of symbols]

[0086] 12:Wash basin 31: Bottom 32: Side part 41: Bottom 42:Groove surface 43:Drain port 46: Recess (direction change part) 51: Convex part (direction change part)

Claims

1. A washbasin including a bottom and a side portion surrounding the bottom, The bottom portion is The drain and a bottom surface extending in a first direction from the side surface portion toward the drain outlet; a groove surface, one of which is connected to the side surface portion and the other of which is connected to the bottom surface in the first direction and is lower than the bottom surface, extending in a second direction perpendicular to the first direction relative to the drain outlet and inclining downward toward the drain outlet; Equipped with The side surface portion has a direction change portion that changes the flow direction of the fluid flowing from each end side of the groove surface to the drain outlet side between the drain outlet and the side surface portion so that the flow directions of the fluid flowing from the end side to the drain outlet side in the second direction are not parallel and opposite to each other in a plan view. Washbasin.

2. The direction change portion is a recess provided in the side surface portion. The washbasin according to claim 1.

3. The recess is provided at a position closest to the drain outlet on the side surface portion and has a recessed shape with respect to the first direction. The washbasin according to claim 2.

4. In a plan view, the recess has a shape in which the width of the recess in the first direction is largest at the position of the drain outlet in the second direction, and the width of the recess in the first direction becomes smaller toward the second direction. A washbasin according to claim 2 or 3.

5. The recess has a shape in which the width of the recess in the first direction decreases toward the height direction. A washbasin according to claim 2 or 3.

6. The direction change portion is a convex portion provided on the side surface portion. The washbasin according to claim 1.

7. The convex portion is provided at a position closest to the drain outlet on the side surface portion and has a shape that protrudes in the first direction. The washbasin according to claim 6.

8. In a plan view, the convex portion has a shape in which the width in the first direction is largest at the position of the drain outlet in the second direction and the width in the first direction becomes smaller toward the second direction. A washbasin according to claim 6 or 7.

9. The convex portion has a shape in which the width in the first direction decreases toward the height direction. A washbasin according to claim 6 or 7.

10. The washbasin according to claim 1; A faucet that discharges water onto the bottom surface of the washbasin; A washbasin with

Images