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 bottom surface 41 in the front-back direction, is lower than the bottom surface 41, extends in a left-right direction orthogonal to the front-back direction relative to the exhaust hole 43, and is inclined downward toward the exhaust hole 43. The groove surface 42 has a region T1 which protrudes toward the side of the bottom surface 41 relative to the front-back direction passing the center of the exhaust hole 43, and the border between the groove surface 42 and the bottom surface 41 in the protruding region T1 has a distance L1 from the center of the exhaust hole 43 in a direction at a first angle α1 relative to the front-back direction, and a distance L2, which is larger than the distance L1, from the center of the exhaust hole 43 in a direction at a second angle α2, which is larger than the first angle, relative to the front-back direction.SELECTED DRAWING: Figure 9

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 that is connected to the bottom surface in the first direction and 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, wherein the groove surface has an area that protrudes toward the bottom surface in the first direction passing through the center of the drain outlet, and the boundary between the groove surface and the bottom surface in the protruding area is greater in distance from the center of the drain outlet in a direction at a second angle relative to the first direction that is greater than the first angle than the distance from the center of the drain outlet in a direction at a first angle relative to the first direction.

[0007] With this configuration, in the protruding region of the groove surface, the distance between the center of the drain outlet and the boundary in the direction of the second angle is greater than the distance between the center of the drain outlet and the boundary in the direction of the first angle. This increases the amount of water flowing directly into the drain outlet. This reduces the amount of water that splashes before entering the drain outlet. Furthermore, the energy of water colliding with other water particles before entering the drain outlet is reduced, reducing water splashing. This reduces dirt splashing, allowing dirt to flow smoothly into the drain outlet.

[0008] In addition, in a washbasin according to the second aspect of the present disclosure, the boundary between the groove surface and the bottom surface in the protruding region has a wider width in the second direction corresponding to a second position closer to the center of the drain outlet than the first position in the first direction than the width in the second direction corresponding to a first position in the first direction.

[0009] This configuration increases the amount of water that flows directly into the drain, suppressing the scattering of dirt and allowing the dirt to be washed away smoothly into the drain.

[0010] In addition, in the washbasin according to the third aspect of the present disclosure, the boundary in the protruding region has a straight line shape on both sides of the center position of the drain outlet in the second direction, and the closer the position is to the center of the drain outlet in the first direction, the wider the width between the straight lines.

[0011] According to this configuration, the linear shape effectively increases the amount of water that flows directly into the drain, suppressing the scattering of dirt and allowing the dirt to flow smoothly into the drain.

[0012] In addition, in the washbasin according to the fourth aspect of the present disclosure, at the boundary in the protruding region, the space between the straight lines is a curved shape extending from each of the straight lines and gradually decreasing in angle relative to the second direction.

[0013] With this configuration, both linear shapes are connected, and water can be smoothly guided to the drain outlet.

[0014] In addition, in the washbasin according to the fifth aspect of the present disclosure, the boundary shape of the groove surface with the bottom surface is parallel to the second direction on the side portion side in the second direction relative to the protruding region.

[0015] This configuration allows water to flow smoothly toward the drain outlet, and in combination with the V-shape, it allows water to be effectively guided to the drain outlet.

[0016] In addition, in a washbasin according to the sixth aspect of the present disclosure, the groove surface contacts the side portion in the first direction, and the side portion has a convex portion that protrudes in the first direction between the side portion and the drain outlet.

[0017] This configuration reduces the energy of water collisions on the groove surface between the drain outlet and the side surface, thereby reducing water splashing, which in turn reduces dirt splashing and allows the dirt to be smoothly flushed down the drain outlet.

[0018] In addition, in the washbasin according to the seventh 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.

[0019] This configuration effectively prevents water from scattering, that is, prevents dirt from scattering.

[0020] Furthermore, a washbasin according to an eighth aspect of the present disclosure includes the above washbasin and a faucet that discharges water onto the bottom surface of the washbasin.

[0021] This configuration allows for the construction of a washbasin that allows dirt to be smoothly flushed down the drain. [Effects of the Invention]

[0022] The washbasin and sink according to the present disclosure allow dirt to be smoothly flushed down the drain. [Brief explanation of the drawings]

[0023] [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 an enlarged plan view of the drain outlet and its surroundings in FIG. 3. [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. 10. [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

[0024] 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.

[0025] ---First embodiment--- First, the first embodiment will be described.

[0026] <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.

[0027] 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.

[0028] 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.

[0029] The washstand 3 is provided below the mirror cabinet 2. The washstand 3 includes a faucet 10, a cabinet 11, and a washbasin 12.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] <V-shaped groove surface 42> Next, the V-shape of the groove surface 42 will be described.

[0044] FIG. 9 is an enlarged plan view of the periphery of the drain outlet 43 in FIG. 9, the groove surface 42 has a V-shape at the boundary with the bottom surface 41. Specifically, the groove surface 42 has a V-shape around the drain hole 43.

[0045] As shown in FIG. 9, the drain outlet 43 is provided within the groove surface 42. The groove surface 42 has a region T1 that protrudes toward the bottom surface 41 in the forward / rearward direction that passes through the center of the drain outlet 43. In this manner, the groove surface 42 has a shape in which the region T1 protrudes toward the front around the drain outlet 43. The region T1 of the groove surface 42 is connected to the bottom surface 41 on the front side. The boundary between the region T1 of the groove surface 42 and the bottom surface 41 is V-shaped as shown in FIG. 9. At the boundary between the region T1 of the groove surface 42 and the bottom surface 41, the width in the left-right direction corresponding to a first position in the forward / rearward direction is defined as width W1, and the width in the left-right direction corresponding to a second position in the forward / rearward direction is defined as width W2. Note that the second position is closer to the center of the drain outlet 43 in the forward / rearward direction than the first position. When the widths W1 and W2 are set in this manner, the width W2 is wider than the width W1. In other words, the width W2 of the region T1 of the groove surface 42 is greater than the width W1.

[0046] 9, a first angle α1 and a second angle α2 are set relative to the front-rear direction. The second angle α2 is larger than the first angle α1 in angle with respect to the front-rear direction. The boundary between region T1 of groove surface 42 and bottom surface 41 is such that the distance L2 from the center of drainage opening 43 in the direction of second angle α2 is larger than the distance L1 from the center of drainage opening 43 in the direction of first angle α1. In other words, the distance between the end of region T1 of groove surface 42 and the center of drainage opening 43 is larger in the direction of second angle α2 (distance L2) than in the direction of first angle α1 (distance L1).

[0047] Thus, in region T1, the width in the left-right direction becomes wider the closer to the center of drain outlet 43 in the front-rear direction. The distance between the end of region T1 and the center of drain outlet 43 increases as the angle with respect to the front-rear direction increases.

[0048] Furthermore, since region T1 is V-shaped, groove surface 42 has linear shapes S1 on both sides (left and right) of the center of drain outlet 43 in the left-right direction in region T1. Therefore, the closer to the center of drain outlet 43 in the front-rear direction, the wider the width in the left-right direction between linear shapes S1. Furthermore, the distance between linear shape S1 and the center of drain outlet 43 increases in the direction at a larger angle with respect to the front-rear direction.

[0049] The linear shape S1 has an angle β with respect to the front-rear direction that is greater than 0 degrees. Also, a line M2 is a line connecting an intersection O1 of extension lines M1 of each linear shape S1 and a point O2 where the groove surface 42, the bottom surface 41, and the side surface portion 32 intersect. The angle β of the linear shape S1 with respect to the front-rear direction is equal to or less than the angle β1 of the line M2 with respect to the front-rear direction.

[0050] In addition, in region T1, the shape between the straight line shapes S1 is a curved line shape S2. That is, the left and right straight line shapes S1 are connected by the curved line shape S2. The curved line shape S2 extends from each of the straight line shapes S1 and has a shape in which the angle with respect to the left and right direction gradually decreases. Note that, as shown in FIG. 9, in the front-to-rear direction passing through the center of the drain outlet 43, the distance between the center of the drain outlet 43 and the curved line shape S2 is shorter than the distance between the center of the drain outlet 43 and the rear side surface portion 32a.

[0051] Thus, region T1 of groove surface 42 is a region that protrudes forward in a V-shape in plan view. As shown in FIG. 9, the boundary of the V-shape of region T1 extends toward the side surface portion 32 (left side surface portion 32c, right side surface portion 32d). Specifically, the boundary between groove surface 42 and bottom surface 41 is V-shaped in a region close to drain outlet 43, and forms a linear shape S3 in a region closer to the left and right side surface portions 32 than the V-shape (region T1). The linear shape S3 extends parallel to the left-right direction. Therefore, width C1 of groove surface 42 shown in FIG. 5, which is a cross-sectional view of VV plane in FIG. 3, is wider than width C2 of groove surface 42 shown in FIG. 6, which is a cross-sectional view of VI-VI plane in FIG. 3.

[0052] <Comparison with reference example> Next, a comparison between the washbasin 12 of this embodiment and a reference example will be described.

[0053] 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 and a groove surface 102. However, the boundary of the groove surface 102 with the bottom surface 101 around the drain outlet 43 is in the shape of an arc centered on the center point of the drain outlet 43. In other words, the groove surface 102 does not have a V-shape around the drain outlet 43.

[0054] 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 groove surface 102 extends parallel to the left and right directions, 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 may be parallel but opposite to each other. In such a case, water may 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 may adhere to the rear side surface, as shown by dirt A3 in FIG. 11, for example.

[0055] In contrast, the groove surface 42 in this embodiment has a V-shape. Figure 12 is a plan view showing the flow of water in the washbasin 12 of this embodiment shown in Figure 3. In Figure 12, the bottom surface 41 is indicated by multiple dots, and the groove surface 42 is indicated by parallel diagonal lines. As shown in Figure 12, in the washbasin 12 of this embodiment, water discharged from the faucet 10 lands in area B1 of the bottom surface 41. The landing 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, because area T1 of the groove surface 42 around the drain outlet 43 is V-shaped, the amount of water flowing directly into the drain outlet 43 is increased compared to the reference washbasin 100. This makes it difficult for the amount of water to increase in area B2, which is between the drain outlet 43 and the rear side surface. That is, in area B2, the collision energy between the water flowing from the right and the water flowing from the left is smaller, 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.

[0056] <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 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 bottom surface 41 in the first direction and is lower than the bottom surface 41, extends in a second direction perpendicular to the first direction to the drain outlet 43, and slopes downward toward the drain outlet 43, and the groove surface 42 has a region T1 that protrudes toward the bottom surface 41 in the first direction passing through the center of the drain outlet 43, and the boundary between the groove surface 42 and the bottom surface 41 in the protruding region T1 is greater in distance L2 from the center of the drain outlet 43 in the direction of a second angle α2 that is larger than the first angle α1 with respect to the first direction than in distance L1 from the center of the drain outlet 43 in the direction of a first angle α1 with respect to the first direction.

[0057] According to this configuration, in the protruding region T1 of the groove surface 42, the distance L2 between the center of the drain outlet 43 and the boundary in the direction of the second angle α2 is greater than the distance L1 between the center of the drain outlet 43 and the boundary in the direction of the first angle α1. This increases the amount of water that flows directly into the drain outlet 43. This reduces the amount of water that splashes before entering the drain outlet 43. Furthermore, the energy of water colliding with other water particles before entering the drain outlet 43 is reduced, reducing the amount of water that splashes. This reduces the scattering of dirt, allowing the dirt to flow smoothly into the drain outlet 43.

[0058] In addition, in the washbasin 12, the boundary between the groove surface 42 and the bottom surface 41 in the protruding region T1 has a width W2 in the second direction corresponding to a second position closer to the center of the drain outlet 43 than the first position in the first direction, which is wider than the width W1 in the second direction corresponding to a first position in the first direction.

[0059] According to this configuration, the amount of water that flows directly into the drain outlet 43 increases, the scattering of dirt is suppressed, and the dirt can be smoothly washed away into the drain outlet 43.

[0060] In addition, in the washbasin 12, the boundary in the protruding region T1 has straight line shapes S1 on both sides of the center position of the drain outlet 43 in the second direction, and the closer the position is to the center of the drain outlet 43 in the first direction, the wider the width between the straight line shapes S1.

[0061] According to this configuration, the linear shape S1 effectively increases the amount of water that flows directly into the drain outlet 43, suppresses the scattering of dirt, and allows the dirt to flow smoothly into the drain outlet 43.

[0062] Furthermore, in the washbasin 12, between the straight line shapes S1 at the boundary in the protruding region T1, there is a curved line shape S2 that extends from each of the straight line shapes S1 and whose angle with respect to the second direction gradually decreases.

[0063] With this configuration, both straight lines S1 are connected, and water can be guided smoothly to the drain outlet 43.

[0064] Furthermore, in the washbasin 12, the boundary shape of the groove surface 42 with the bottom surface 41 is parallel to the second direction on the side surface portion 32 side in the second direction from the protruding region T1.

[0065] This configuration allows water to flow smoothly toward the drain outlet 43, and in combination with the V-shape, allows water to be guided to the drain outlet 43 effectively.

[0066] --- Second embodiment --- Next, a second embodiment will be described.

[0067] The second embodiment differs from the first embodiment in the shape of the side surface portion 32. 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.

[0068] In the second embodiment, the rear side surface portion 32a that contacts the groove surface 42 at the rear side has a convex portion 51. Fig. 13 is a plan view showing an example of the 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 of the configuration of the washbasin 12 according to this embodiment.

[0069] 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. 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 protruding 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 curved shape S2 of the groove surface 42. Furthermore, the left-right width of the protrusion 51 is preferably greater than the size of the drain outlet 43. In particular, the left-right width of the protrusion 51 is preferably greater than the left-right width of the protruding region T1 (V-shape) of the groove surface 42.

[0070] 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.

[0071] 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 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.

[0072] <Action and effect> As described above, in the washbasin 12 of this embodiment, the groove surface 42 is in contact with the side portion 32 in the first direction, and the side portion 32 has a convex portion 51 that protrudes in the first direction between the side portion 32 and the drain outlet 43.

[0073] This configuration can reduce the energy of water collisions on the groove surface 42 between the drain outlet 43 and the side surface 32, thereby reducing water scattering. This reduces dirt scattering, allowing the dirt to flow smoothly into the drain outlet 43.

[0074] 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.

[0075] This configuration effectively prevents water from scattering, that is, prevents dirt from scattering.

[0076] <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.

[0077] 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.

[0078] Furthermore, in the first and second embodiments, the case where the region T1 of the groove surface 42 is V-shaped has been described as an example, but the shape of the region T1 is not limited to a V. For example, the region T1 may have a curved shape in which the width in the left-right direction increases as the region approaches the center of the drain outlet 43 in the front-rear direction.

[0079] In the first and second embodiments, the linear shape S3 extends parallel to the left-right direction, but the shape and direction of the boundary of the linear shape S3 are not limited to the above. For example, the linear shape S3 may extend in a direction at an angle of 0 degrees or more with respect to the left-right direction, or the linear shape S3 may be a curved shape instead of a straight line.

[0080] In the second embodiment, 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 convex portion 51. However, the present invention is not limited to the case where the convex portion 51 is provided on the rear side surface portion 32a depending on the position of the groove surface 42. For example, when the groove surface 42 is provided on the front side, the convex portion 51 may be provided on the front side surface portion 32b. [Explanation of symbols]

[0081] 12:Wash basin 31: Bottom 32: Side part 41: Bottom 42:Groove surface 43:Drain port L1: distance L2: distance T1: Area (protruding area) α1: First angle α2 :Second angle

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 that is connected to the bottom surface in the first direction and 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; Equipped with The groove surface has a region that protrudes toward the bottom surface side in the first direction passing through the center of the drain outlet, The boundary between the groove surface and the bottom surface in the protruding region has linear shapes on both sides of the center position of the drain outlet in the second direction, and the closer to the center of the drain outlet in the first direction, the wider the width between the linear shapes. Washbasin.

2. The linear shape has an angle with respect to the first direction that is greater than 0 degrees. The washbasin according to claim 1.

3. The boundary between the groove surface and the bottom surface in the protruding region has a width in the second direction corresponding to a second position closer to the center of the drain outlet than the first position in the first direction, which is wider than a width in the second direction corresponding to a first position in the first direction. The washbasin according to claim 1.

4. At the boundary of the protruding region, the portions between the linear shapes are curved shapes extending from each of the linear shapes and gradually decreasing in angle with respect to the second direction. The washbasin according to claim 1.

5. a boundary shape between the groove surface and the bottom surface is parallel to the second direction on a side of the side surface portion in the second direction relative to the protruding region; A washbasin according to claim 1 or 3.

6. the groove surface is in contact with the side surface portion in the first direction, The side surface portion has a convex portion that protrudes in the first direction between the side surface portion and the drain outlet. A washbasin according to claim 1 or 3.

7. 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. The washbasin according to claim 6.

8. A washbasin according to claim 1 or 3; A faucet that discharges water onto the bottom surface of the washbasin; A washbasin with

Images