TW201727012A - Sink for sink cabinet capable of improving the convenience for use - Google Patents

Abstract

This invention provides a sink for sink cabinet with improved convenience. The sink for sink cabinet 1 comprises: a sink body 10 constructed by a bottom part 13, a rear wall 15 and a front wall 14 erected from the bottom part 13, and a pair of side walls 16 erected from the bottom part 13 at two ends along the left-right direction orthogonal to the front-back direction connecting the rear wall 15 and the front wall 14; and a drainage part 20 arranged at the side the rear wall 15 being disposed and in the central portion defined in the left-right direction of the bottom part 13; and further comprising a pair of lateral platform parts 5 arranged at one side and the other in the left-right direction of the drainage part 20, and extending forwardly from the rear wall 15 at the height position defined in the substantial central portion but closer to the bottom side relative to the height direction of the sink body 10; a front platform part 6 extending backward from the front wall 14 and arranged at the same height position as the lateral platform parts 5; and a central platform part 7 arranged behind the drainage part 20 in the rear wall 15 and arranged at the same height position as the lateral platform parts 5.

Description

Flow table sink

The present invention relates to a water tank for a flow table.

It is known that a platform portion extending inward from the side wall of the water tank main body is provided on the lower side of the center portion in the height direction of the water tank body in the water tank for the flow table (for example, see Patent Document 1). Patent Document 1 proposes that a second platform portion is provided at a position facing the first platform portion in the water tank main body, and a drain basket is placed between the first platform portion and the second platform portion, and the laundry or the like is placed thereon. Drain basket.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2013-127195

In the technique of Patent Document 1, the first platform portion and the second platform portion are disposed to be disposed only on one of the water tank bodies, and can be used to fix the position of the plate such as the drain basket. However, during cooking, a pot or bowl is placed on the bottom surface of the sink body or on the upper part of the sink body. Since the space required for cutting the food and the like is changed, it is desirable to appropriately change the position of the drain basket or the like that is placed before and after. In the case where the sink for the flow table is small and the body of the water tank is narrow, it is particularly desirable to change the configuration of the inside of the water tank body.

It is an object of the present invention to provide a water tank for a flow table which is improved in convenience.

The present invention relates to a water tank for a flow table, comprising: a water tank body that is erected from the bottom surface portion, a wall portion and a front wall portion, and a connection to the rear wall portion and the front wall portion One end side of each of the left and right directions orthogonal to the front and rear directions is formed by one of the pair of side wall portions, and the drain portion is disposed on the side of the rear wall portion of the center portion of the bottom surface portion in the left-right direction; a pair of side platform portions disposed at one of the left and right directions of the drain portion and the other, and at a height position on the bottom surface side from a substantially central portion of the height direction of the water tank body, from the rear wall portion a front platform portion extending rearward from the front wall portion and disposed at a height position similar to the side platform portion; and a center platform portion disposed behind the drain portion of the rear wall portion And disposed at the same height position as the side platform portion.

Moreover, it is preferable to further include a lid portion that covers the drain portion, and the center platform portion is configured by an upper end portion of the lid portion.

Moreover, it is preferable that the bottom surface portion is gently inclined downward from the front wall portion side toward the rear wall portion side, and in the left and right direction of the drain portion of the bottom surface portion, in a state where the lid portion is closed Forming an introduction portion for introducing the liquid and the solid matter into the drain portion.

Moreover, it is preferable that the pair of side platform portions and the center platform portion are continuously provided in the left-right direction.

Preferably, the pair of the side land portions and the center platform portion are formed in an arc shape so as to be deeper in depth as they are directed toward the center portion from the both end sides in the left-right direction.

Further preferably, the upper step portion is provided along a peripheral edge of the water tank main body and extends outward from at least an upper end portion of each of the rear wall portion and the front wall portion.

According to the present invention, it is possible to provide a water tank for a flow table which is improved in convenience.

1‧‧‧Sumps for sinks

5‧‧‧Side Platform Department

6‧‧‧ Front Platform

7‧‧‧Central Platform Department

10‧‧‧Sink body

12‧‧‧Upper step

13‧‧‧ bottom part

14‧‧‧ Front wall

15‧‧‧Back wall

16‧‧‧A pair of side walls

20‧‧‧Drainage Department

30‧‧‧ 盖部

131‧‧‧Importing Department

Fig. 1 is a perspective view of a water tank for a flow table according to a first embodiment of the present invention.

Fig. 2 is a plan view showing a water tank for a flow table according to the first embodiment.

Fig. 3 is a side view of the water tank for a flow table of the first embodiment.

Figure 4 is a cross-sectional view taken along line A-A of Figure 2.

Fig. 5 is a rear elevational view of the water tank for the flow table of the first embodiment.

Fig. 6 is a partially enlarged view of the drain portion of the first embodiment.

Fig. 7 is a partially enlarged view showing a state in which the drain portion of Fig. 6 is covered with a cover.

Fig. 8 is a view showing a state of use of the water tank for a flow table according to the first embodiment.

Fig. 9 is a schematic cross-sectional view showing a state in which the water tank for a flow table of the first embodiment is used.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view of a water tank 1 for a fluid power station according to a first embodiment. Figure 2 is the bottom of the sink with the sink 1 The view is a view in which the lid portion 30 is omitted and displayed. Fig. 3 is a side view of the water tank 1 for the flow table. Figure 4 is a cross-sectional view taken along line A-A of Figure 2. Fig. 5 is a rear view of the sink 1 for the flow table.

The water tank 1 for a flow table according to the first embodiment constitutes a part of the flow table 100 disposed in a kitchen or a bathroom. More specifically, the flow table 100 includes a counter 101, a sink for the flow table 1, and a faucet 3.

The surface 101a of the counter 101 is disposed at a height specific to the floor surface and the upper surface 101a is substantially horizontal. An opening (not shown) capable of accommodating the water tank 1 for the flow table is formed on the upper surface 101a of the counter 101.

The faucet 3 is disposed on the side after the upper surface 101a of the counter 101. The faucet 3 is an operation unit that can be connected to a water supply pipe (not shown) and can supply water to the flow table 100.

Further, in the present specification, the position where the user stands with respect to the flow table 100 is set to the near side F, and the position facing the front side F and away from the user is set to the rear side B, and these positions are made. The direction of the connection is called the front-rear direction FB. Further, a direction orthogonal to the front-rear direction in plan view is referred to as a left-right direction LR or a left side L and a right side R.

The flow table 1 is disposed in the opening formed in the counter 101, and constitutes a recess recessed downward from the upper surface 101a of the counter 101. As shown in FIG. 1, the flow table water tank 1 includes a water tank body 10, a drain portion 20, and a lid portion 30.

The water tank body 10 is formed in a substantially rectangular parallelepiped shape in which the upper surface is open. As shown in FIGS. 1 and 2, the water tank body 10 has a bottom surface portion 13, a front wall portion 14, a rear wall portion 15, a pair of side wall portions 16, and an upper step portion 12. Further, the water tank body 10 has a pair of side land portions 5, a front platform portion 6, and a center platform portion 7 (see Fig. 1).

The bottom surface portion 13 constitutes a bottom surface of the water tank body 10. The bottom portion 13 is flat, and As indicated by the arrow in Fig. 1, the side of the front wall portion 14 is gently inclined downward toward the side of the rear wall portion 15. Further, the bottom surface portion 13 is gently inclined downward from the end portion side in the left-right direction toward the center portion side. The inclination angle may be, for example, about 2.0 to 3.0 degrees.

As shown in FIGS. 1 and 2, the bottom surface portion 13 has a shape that protrudes outward from the both end portions in the left-right direction toward the center portion in the rear view in a plan view.

As shown in FIG. 3, the drain portion 20 described below is disposed on the bottom portion 13 at the lowest portion where it is inclined downward. Further, as shown in FIGS. 1 and 2, the bottom surface portion 13 has an introduction portion 131 for introducing a liquid and a solid matter to the drain portion 20 around the drain portion 20.

As shown in FIG. 4, the introduction portion 131 is formed on the rear side of the bottom surface portion 13, and both sides of the drainage portion 20 in the left-right direction LR are lower than the bottom surface portion 13 and shallower than the drainage portion 20, and are formed by being recessed toward the drainage portion 20.

The front wall portion 14 is located on the near front side F of the bottom surface portion 13 and is erected from the bottom surface portion 13.

The rear wall portion 15 is erected from the bottom surface portion 13 on the rear side B opposite to the front wall portion 14.

The pair of side wall portions 16 are erected from the bottom surface portion 13 so as to connect the front wall portion 14 and the rear wall portion 15. The pair of side wall portions 16 are located on both end sides of the left-right direction LR that is substantially orthogonal to the rear direction FB before the front wall portion 14 and the rear wall portion 15 are coupled.

Returning to FIG. 1, the upper step portion 12 is continuously formed along the circumference of the water tank body 10. The upper step portion 12 is composed of an extending portion 12a extending outward from the upper end portion of the rear wall portion 15, the front wall portion 14, and the pair of side wall portions 16, and an upper side surface 12b extending upward from the outer side of the extending portion 12a.

Specifically, as shown in FIGS. 2 to 5, the extending portion 12a of the upper step portion 12 is a wall surface in which the rear wall portion 15, the front wall portion 14, and the pair of side wall portions 16 extend in the vertical direction, and is bent outward at the upper end portion. And it extends slightly to the outside in the horizontal direction. The extension 12a in the front wall portion 14 and the rear The extending portion 12a of the wall portion 15 and the extending portion 12a of the pair of side wall portions 16 are configured to have the same height.

The upper side surface 12b of the upper step portion 12 is a side surface which is curved on the outer side of the extending portion 12a and extends upward.

As shown in FIGS. 1, 2, and 5, the side land portion 5 is disposed on both end sides of the water tank body 10 in the left-right direction. The side land portion 5 is configured to extend from the rear wall portion 15 side of the water tank body 10 toward the front side F and to be curved toward the bottom portion 13 side to be continuous. As shown in FIG. 5, the side land portion 5 is formed at a position where the upper surface thereof is lower than the bottom portion 13 side of the substantially central portion in the height direction of the water tank body 10, that is, at a lower position.

The side platform portion 5 is formed to be narrower in size in the front-rear direction FB from the both end sides of the left-right direction LR of the water tank main body 10 toward the center portion side in plan view. As shown in FIG. 2, the side land portion 5 is curved in a curved shape so as to be gradually curved toward the center side of the water tank main body L and the right side R in a plan view. Further, the side land portion 5 is curved symmetrically on the left side L and the right side R. As shown in FIG. 5, the opposite ends of the center side of the pair of side land portions 5 in the left-right direction LR are gently curved downward.

The front platform portion 6 is formed by a step extending from the front wall portion 14 toward the rear side B and bent downward to be continuous with the bottom surface portion 13. As shown in FIG. 4, the front platform portion 6 is formed at the same height position as the side platform portion 5. As shown in FIGS. 1 and 2, the front platform portion 6 is linearly disposed along the front wall portion 14, and the front platform portion 6 has a small size in the front-rear direction FB. Specifically, the front platform portion 6 may extend from the front side F to the rear side B so as to form a projection on which the end portion of the drain basket or the plate can be placed.

As shown in Fig. 1, the center platform portion 7 is in the left and right direction of the water tank body 10 The central portion is disposed between the pair of side platform portions 5. The height of the center platform portion 7 is substantially the same as the height of the side platform portion 5. The center platform portion 7 is configured such that an end portion on the center side of the side platform portion 5 disposed on one of the left and right directions LR and an end portion on the center side of the other side platform portion 5 disposed in the left-right direction LR are continuously connected Settings. The center platform portion 7 is formed to have a narrow size in the front-rear direction FB so as to match the size of the end portion on the center portion side in the left-right direction LR of the side land portion 5.

FIG. 6 is a partial enlarged view of the drain portion 20.

The drain portion 20 is disposed on the rear wall portion 15 side of the bottom surface portion 13 and is disposed at a central portion of the left-right direction LR so as to be sandwiched between the pair of side land portions 5. As shown in FIG. 6, the drain portion 20 is formed by a drain port 21 that communicates with a drain pipe (not shown), a drain recess 22 formed at a position lower than the bottom surface portion 13 around the drain port 21, and a drain recess 22 formed in the drain recess 22 The step 23 of the periphery of the upper end portion is formed. The drain recess 22 is formed at both end portions of the rear side B of the rear side B of the drain recess 22, and is continuous with the introduction portion 131 of the bottom portion 13. In the drain portion 20, the garbage collection net 24 is disposed in the drain recess 22 so that the garbage does not flow to the drain port 21.

Fig. 7 is a partially enlarged view showing a state in which the drain portion 20 of Fig. 6 is covered with the lid portion 30.

As shown in FIG. 7, the lid portion 30 covers a member of the drain portion 20 that is separate from the water tank body 10, and has a size that is fitted to the step 23 formed on the periphery of the upper end portion of the drain recess portion 22. The lid portion 30 has a lid bottom surface portion 31, an inclined portion 32, and an inclined portion upper end portion 33.

As shown in FIG. 8, the lid bottom surface portion 31 is a flat surface along the lowest surface of the bottom surface portion 13. The lid bottom surface portion 31 is continuous with the step B of the drain portion 20 by the lid portion 30, and is continuous with the rear side B of the bottom surface portion 13.

The inclined portion 32 is raised upward from the rear end of the bottom portion 31 of the cover portion, and The surface that is inclined toward the rear side B toward the upper side. As shown in FIG. 7 , the inclined portion 32 is inclined upward on the side after the drain portion 20 , so that both ends in the left-right direction LR of the drain portion 20 are largely separated from the drain portion 20 as the rear side B advances. Therefore, a space is formed between the inclined portion 32 and the rear side B of the drain portion 20.

The inclined portion upper end portion 33 is a horizontal plane having a narrow width extending slightly from the upper end of the inclined portion 32 toward the rear wall portion 15 side of the water tank body 10. The inclined portion upper end portion 33 constitutes the center platform portion 7 in a state where the lid portion 30 covers the drain portion 20. In other words, the inclined portion upper end portion 33 is located at the same height as the left and right side platform portions 5, and is disposed to connect the center sides of the left and right side platform portions 5.

Next, the state of use of the water tank for the flow table of the present embodiment will be described.

When the garbage such as the foodstuff produced during cooking is sprinkled on the bottom surface portion 13, the bottom surface portion 13 is formed to be inclined downward toward the drain portion 20, so that water is used along the bottom surface during the operation using water. The portion 13 is inclined and flows, whereby the garbage is conveyed to the drain portion 20 side. Specifically, since the bottom surface portion 13 is inclined downward from the front and the left and right toward the center of the rear side, the garbage is concentrated on the center side behind the bottom surface portion 13 . Further, the side land portion 5 is curved so as to be deeper in depth from the left and right end sides toward the rear center portion side, and the bottom surface portion 13 is formed to protrude rearward in the plan view toward the rear side B, so that the water flowing backward is along the side. The lower end of the platform portion 5 flows toward the center side.

Since the water flows toward the rear side B along the inclination of the bottom surface portion 13, and concentrates on the lower end of the side land portion 5, the amount of displacement increases. However, since the introduction portion 131 is recessed toward the drain portion 20 such that one portion of the bottom surface portion 13 is cut out, the incremental water is also quickly drained to the drain portion 20.

Moreover, the garbage conveyed by the flow of water is guided to the introduction portion 131, and is self-guided. The inlet portion 131 is conveyed to a space formed between the inclined portion 32 of the lid portion 30 and the rear side B of the drain portion 20, and flows to the drain portion 20. The waste flowing to the drain portion 20 is concentrated on the garbage collection net 24.

Fig. 8 is a view showing a state of use of the water tank 1 for the flow table, and Fig. 9 is a schematic cross-sectional view showing a state of use of the water tank 1 for the flow table. As shown in FIGS. 8 and 9, the water tank 1 for a fluidizing table according to the present embodiment may be used by arranging a drain plate 91 or the like on the side land portion 5 and the front platform portion 6. The side platform portion 5 is disposed in one of the left and right directions of the water tank body 10 and the other, and the center platform portion 7 is connected to the rear side B of the drain portion 20 in the rear wall portion 15 to connect the side platform portions 5 on the left and right sides. The mode is disposed on the center side and is disposed at the same height as the side platform portion 5. Therefore, in a state where the drain plate or the like is placed on the side land portion 5 and the front platform portion 6 as necessary, the drain plate can be moved to the left and right without lifting.

Further, an upper step portion 12 is formed in the water tank body 10. A plate such as an anvil plate 92 may be placed on the upper step portion 12 to be used. By aligning the thickness of the cutting block 92 with the height of the upper side surface 12b of the upper step portion 12, when the cutting block 92 is placed on the upper step portion 12, the surface of the cutting block 92 is continuous with the upper surface 101a of the counter 101, and the working area Widening.

According to this embodiment, the following effects can be exhibited.

(1) The water tank 1 for a flow table including the water tank main body 10 and the drain portion 20 includes the following portions: a pair of side land portions 5 disposed in one of the left and right directions of the drain portion 20 and the other phase The height of the center portion of the water tank body 10 in the height direction is higher than the bottom surface side, and extends from the rear wall portion 15 of the water tank body 10; the front platform portion 6 extends rearward from the front wall portion 14 and is disposed on the side The platform portion 5 has the same height position; and the center platform portion 7 is disposed behind the drain portion 20 of the rear wall portion 15 and is disposed at the same height position as the side platform portion 5.

Thereby, the bottom surface can be placed at the center of the height direction of the water tank body 10 The lower platform portion is disposed on the side land portion 15 on the side of the wall portion 15 of the water tank body 10, and the front platform portion 6 provided on the side of the front wall portion 14 at the same height as the side platform portion 5 is provided with a plate such as the drain plate 91. use. Since the drain plate 91 and the like can be disposed at a lower position, the space above the water tank body 10 can be freely used.

Further, since the side land portion 5 is disposed in one of the left and right directions of the water tank body 10 and the other, the center platform portion 7 is disposed on the center portion side of the water tank body 10, so that the drain plate 91 can be moved from the side platform portion 5 to the center platform portion. Slide around 7 or so. Therefore, the convenience of the water tank 1 for the flow table can be improved without being restricted to the working space of the user's dominant hand or the installation surface. Further, at the time of cleaning, the cleaning portion can be changed only by sliding the drain plate 91.

(2) Further, the lid portion 30 covering the drain portion 20 is further provided, and the center platform portion 7 is constituted by the upper end portion of the lid portion 30. Thereby, the center platform portion 7 can be formed to be detachable, and the area of the drain portion 20 can be increased.

(3) The pair of side platform portions 5 and the center platform portion 7 are continuously provided in the left-right direction LR. Thereby, when the drain plate 91 or the like is placed on the side platform portion 5 and the front platform portion 6, the drain plate 91 can be freely moved in the left-right direction LR at the lower position of the water tank body 10. Therefore, the water tank 1 for the flow table can be used in a motorized manner.

(4) The bottom surface portion 13 is gently inclined downward from the front wall portion 14 side toward the rear wall portion 15 side. Further, on both sides in the left-right direction LR of the drain portion 20 in the bottom surface portion 13, the introduction portion 131 for introducing the liquid and the solid matter into the drain portion 20 is formed in a state where the lid portion 30 is closed. As a result, the water flows along the bottom surface portion 13 and the garbage generated during cooking is concentrated toward the drain portion 20 side. Further, in a state where the lid portion 30 of the drain portion 20 is closed, the garbage flows into the introduction portion 131 and concentrates on the drain portion 20. Therefore, garbage is not seen during cooking, and the appearance and comfort are improved.

(5) The pair of side platform portions 5 and the center platform portion 7 are formed in an arc shape so as to be deeper in depth as viewed from the both end sides of the left-right direction LR toward the center portion in plan view. Thereby, a detergent, a sponge, or the like can be used in a portion where the width of the rear direction FB is wide before the both end portions of the side land portion 5 in the left-right direction LR. Further, since the wide surface of the bottom surface portion 13 is formed on the central portion side in the left-right direction LR of the bottom surface portion 13, a large object such as a pan or a pan can be placed on the central portion side of the water tank body 10.

(6) Further, along the peripheral edge of the water tank body 10, the upper step portion 12 is further extended outward from the upper end portion of each of the rear wall portion 15, the front wall portion 14, and the pair of side wall portions 16. Thereby, an anvil or the like can be placed on the upper step portion 12 of the front wall portion 14 and the rear wall portion 15. Therefore, the upper step portion 12 and the side land portion 5 and the front platform portion 6 can be stacked in two layers in the upper and lower directions of the water tank body 10, and the convenience can be improved.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be appropriately modified.

For example, in the above-described embodiment, the introduction portion 131 that introduces the water flowing together with the garbage into the drain portion 20 is provided, and is introduced into the space between the inclined portion 32 and the rear side B of the drainage portion 20, but the present invention is not limited thereto. . Alternatively, the inclined portion 32 may be formed with a through hole extending in the left-right direction LR to promote drainage from the lid portion 30 side instead of the introduction portion 131.

Further, in the above embodiment, the introduction portion 131 is formed at both ends of the rear side B of the rear side B of the drain portion 20, but the invention is not limited thereto. The introduction portion may also be recessed lower than the bottom portion 13 so as to surround the periphery of the drain portion 20, and is higher than the drainage recess 22 by The concave portion is formed in a shape of a word.

Further, in the above embodiment, the bottom surface portion 31 of the lid portion of the lid portion 30 is flat. Yes, but not limited to this. By forming the lid bottom surface portion 31 so that the center side is raised and the peripheral side is low, it is possible to prevent water from remaining in the portion where the lid bottom surface portion 31 and the inclined portion 32 are connected. According to this configuration, the introduction portion 131 can be drained from the periphery of the bottom portion 31 of the lid portion to be drained.

On the other hand, the portion where the lid bottom portion 31 of the lid portion 30 is connected to the inclined portion 32 may be disposed at a position lower than the bottom surface portion 13, and the lid portion may be recessed in a substantially V shape in a side view.

1‧‧‧Sumps for sinks

3‧‧‧Water tap

5‧‧‧Side Platform Department

6‧‧‧ Front Platform

7‧‧‧Central Platform Department

10‧‧‧Sink body

12‧‧‧Upper step

12a‧‧‧Extension

12b‧‧‧ upper side

13‧‧‧ bottom part

14‧‧‧ Front wall

15‧‧‧Back wall

16‧‧‧A pair of side walls

20‧‧‧Drainage Department

30‧‧‧ 盖部

100‧‧‧流台

101‧‧‧ counter

101a‧‧‧ upper surface

131‧‧‧Importing Department

B‧‧‧Back side

F‧‧‧ near front side

L‧‧‧left

R‧‧‧right

Claims (10)

A water tank for a flow table, comprising: a water tank body, wherein the bottom surface portion, the wall portion and the front wall portion after being erected from the bottom surface portion, and the front and rear portions are connected to the rear wall portion and the front wall portion One end side of the left-right direction of the intersection is formed by one of the pair of side wall portions, and the drain portion is disposed on the side of the rear wall portion at the center portion of the bottom surface portion in the left-right direction; and has a pair of sides The platform portion is disposed at one of the left and right directions of the drain portion and the other portion, and extends forward from the rear wall portion at a height position closer to the bottom surface than the substantially central portion of the water tank body in the height direction; a platform portion extending rearward from the front wall portion and provided at a height position similar to the side platform portion; and a center platform portion disposed behind the drain portion of the rear wall portion and disposed at The above-mentioned side platform portions have the same height position. The water tank for a power station according to claim 1, further comprising a cover portion covering the drain portion, wherein the center platform portion is formed by an upper end portion of the cover portion. The water tank for a power station according to the second aspect of the invention, wherein the bottom surface portion is gently inclined downward from the front wall portion side toward the rear wall portion side, and the left and right directions of the drain portion in the bottom surface portion are two On the side, in a state where the lid portion is closed, an introduction portion for introducing a liquid and a solid matter into the drain portion is formed. For example, the sink for the flow table of the first application patent scope, wherein the pair of side platform portions and the upper portion The central platform section is continuously disposed in the left and right direction. The water tank for a countertop according to the second aspect of the invention, wherein the pair of side platform portions and the center platform portion are continuously provided in the left-right direction. The water tank for a counter in the third aspect of the patent application, wherein the pair of side platform portions and the center platform portion are continuously provided in the left-right direction. The water tank for a power station according to the first or second aspect of the invention, wherein the pair of the side platform portions and the center platform portion are formed in a plan view and are deeper and narrower toward the center portion from the both ends in the left-right direction. The way is formed in an arc shape. The water tank for a power station according to the third or fourth aspect of the invention, wherein the pair of the side platform portions and the center platform portion are in a plan view, and are narrowed in depth as they extend from the both end sides toward the center portion in the left-right direction. The way is formed in an arc shape. The water tank for a flow table according to the fifth or sixth aspect of the invention, wherein the pair of the side platform portions and the center platform portion are in a plan view, and are narrowed in depth as the both ends from the left and right sides toward the center portion. The way is formed in an arc shape. The water tank for a power station according to claim 1 or 2, further comprising an upper step portion provided along a circumference of the water tank body, and at least from the rear wall portion and the front wall portion The upper end portion of each of them extends to the outside.