AU2014409962A1

AU2014409962A1 - Kitchen sink

Info

Publication number: AU2014409962A1
Application number: AU2014409962A
Authority: AU
Inventors: Shinichiro Mabe
Original assignee: Cleanup Corp
Current assignee: Cleanup Corp
Priority date: 2014-10-30
Filing date: 2014-10-30
Publication date: 2017-05-11
Anticipated expiration: 2034-10-30
Also published as: WO2016067413A1; TWI654355B; AU2014409962B2; TW201615935A

Abstract

[Problem] The purpose of the present invention is to provide a kitchen sink in which vegetable scraps, etc., tend not to accumulate on the bottom surface of the sink, which can be easier to clean and made more user-friendly. [Solution] The kitchen sink (sink 100) according to the present invention is characterized in being configured so as to be provided with a bottom surface 110 inclined downward toward the front in the front-rear direction, a drain port 120 in contact with either the left or right end of the sink and disposed in a position further away from the front end 102b of the sink, and a guide channel 130 running along a side end (left end 102a) of the sink from the front end of the sink continuing to the drain port; the front end of the sink being inclined downward toward the side where the drain port is provided.

Description

KITCHEN SINK

FIELD OF THE INVENTION

[0001] The present invention relates to a kitchen sink to be integrated into a kitchen cabinet of a built-in kitchen unit or the like.

BACKGROUND OF THE INVENTION

[0002] Conventionally, in a kitchen, a sink is integrated with a kitchen cabinet, and food materials are prepared or tableware is washed in the sink. For example, a kitchen sink disclosed in Patent Document 1 has a sink bottom that is inclined so that it becomes lower moving toward a drain outlet. This allows water to flow on the sink bottom toward the drain outlet during washing, and therefore, drainage can be improved, thus making it possible to improve workability.

RELATED DOCUMENTS PATENT DOCUMENTS

[0003]

Patent Document 1- JP H11-13101A

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0004] In general, as in Patent Document 1 above, a conventional kitchen sink has a bottom that is inclined toward a drain outlet, and the sink bottom is inclined in the manner of a bowl centered around the drain outlet. When food materials are prepared or tableware is washed in the sink, leftovers on the tableware, vegetable waste produced during the preparation of food materials, and the like (referred to as “vegetable waste and the like” hereinafter) build up. 1 [0005] At this time, in the case of a conventional sink having a bottom inclined toward a drain outlet, vegetable waste and the like that is present on the drain outlet side with respect to a position toward which water is to be discharged from a faucet will be washed away toward the drain outlet by a stream of water during washing, whereas vegetable waste and the like that is present on a side opposite to the drain outlet side with respect to the position toward which water is to be discharged will build up. In addition, the drain outlet of a conventional sink is arranged on the sink back side. However, vegetable waste and the like accumulates on the sink front side during food preparation. Therefore, vegetable waste and the like builds up almost every time. This causes a problem in that a user has to gather up the built up vegetable waste and the like by hand and put it into the drain outlet, resulting in troublesome work. Moreover, stains are likely to adhere to the sink due to the vegetable waste and the like being likely to build up, and thus a problem arises in that cleaning takes time, resulting in the deterioration of cleanability.

[0006] In view of the foregoing problems, it is an object of the present invention to provide a kitchen sink in which vegetable waste and the like is less likely to build up on a sink bottom and that can improve the user convenience and the cleanability.

MEANS TO SOLVE THE PROBLEMS

[0007] In order to solve the foregoing problems, a kitchen sink according to the present invention having a typical configuration is a kitchen sink including a bottom that is inclined downward as the bottom extends toward a front side in a front-back direction, a drain outlet that is in contact with one of a sink left end and a sink right end and is arranged at a position on a back side with respect to a sink front end and a guide groove that extends along a sink side end and is continuous from the sink front end to the drain 2 outlet, wherein the sink front end is inclined downward as the sink front end extends toward a side on which the drain outlet is provided.

[0008] With the above configuration, the sink bottom has an inclined surface that is inclined downward toward the sink front side and not the drain outlet. Accordingly, a position toward which water is to be discharged from a faucet is located on the upstream side of the inclination of the bottom with respect to the region on the sink front side in which vegetable waste and the like builds up. Therefore, the vegetable waste and the like is washed away toward the sink front end by a stream of water flowing on the sink bottom.

[0009] Since the sink front end is inclined downward as it extends toward the side on which the drain outlet is provided, the vegetable waste and the like that has reached the sink front end is washed away toward the guide groove, passes through the guide groove, and is washed away toward the drain outlet. Therefore, the vegetable waste and the like is automatically washed away by a stream of water while dishes are being washed, for example, and thus, at about the time when the washing of dishes is finished, the disposal of the vegetable waste and the like is also finished. Accordingly, a user need not perform a conventional operation of gathering up vegetable waste, and troublesome work is omitted, thus making it possible to achieve high user convenience. Moreover, the vegetable waste and the like is prevented from building up, and thus stains are prevented from adhering to the sink bottom, thus making it possible to maintain a clean state at all times. Accordingly, the sink can be cleaned easily, thus making it possible to achieve high cleanability.

[0010] It is preferable that the bottom has a flat surface, a curved surface, or a surface that is a combination thereof. With any of these shapes, the 3 above-described effects can be obtained.

[0011] It is preferable that a region of the bottom on the drain outlet side in a left-right direction has a flat surface, and a region on a side opposite to the drain outlet has a curved surface similar to that of a bowl. This enables water to flow more widely in the region on the drain outlet side, and thus water and the vegetable waste and the like to be more efficiently collected to the sink front side in the region on a side opposite to the drain outlet.

[0012] It is preferable that the bottom as a whole is inclined toward the sink front side in a front-back direction and is obliquely inclined toward a side on which the drain outlet is provided, in a left-right direction. With this configuration, the vegetable waste and the like on the bottom can be favorably guided to the sink front end.

[0013] It is preferable that an inclined region having a groove shape, a flat surface, or a shape that is a combination thereof is formed at the sink front end. This enables the vegetable waste and the like that has been guided to the sink front end to be favorably washed away into the guide groove.

Effects of the Invention [0014] With the present invention, it is possible to provide a kitchen sink in which vegetable waste and the like is less likely to build up on a sink bottom and that can improve the user convenience and the cleanability.

Brief Explanation of the Drawings [0015] FIG. 1 shows overall views of a kitchen sink according to a first embodiment. FIG. 2 shows cross-sectional views of FIG. 1(b). FIG. 3 is an overall view of a kitchen sink according to a second 4 embodiment. FIG. 4 shows cross-sectional views of FIG. 3. FIG. 5 is an overall view of a kitchen sink according to a third embodiment. FIG. 6 shows cross-sectional views of FIG. 5. FIG. 7 is an overall view of a kitchen sink according to a fourth embodiment. FIG. 8 shows cross-sectional views of FIG. 7. FIG. 9 is an overall view of a kitchen sink according to a fifth embodiment. FIG. 10 is an overall view of a kitchen sink according to a sixth embodiment. FIG. 11 is a cross-sectional view taken along line A-A in FIG. 10. FIG. 12 shows diagrams illustrating other shapes of a drain outlet.

Index to the Reference Numerals [0016] 100 ... sink; 102 ... vegetable waste! 102a ... sink left end; 102b ... sink front end; 102c ... sink right end; 110 ... bottom! 120 ... drain outlet; 130 ... guide groove! 130a ... open end; 132 ... inclined region! 140 ... wall surface! 150 ... bulge portion! 152 ... mounting hole! 160 ... drain cover! 200 ... sink! 210 ... bottom! 212 ... first region! 214 ... second region! 232 ... inclined region! 232b ... open end! 300 ... sink! 332 ... inclined region! 332a ... groove-shaped portion! 332b ... flat portion! 332c ... boundary line! 400 ... sink! 410 ... bottom! 500 ... sink! 510 ... bottom! 600 ... sink! 610 ... bottom! 612 ... first region! 614 ... second region! 616 ... boundary! 632 ... flat surface! 632a ... boundary line

Embodiments of the Invention [0017] Hereinafter, preferred embodiments of a hot water supply apparatus and a hot water supply system according to the present 5 invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values described in this embodiment are merely examples for facilitating the understanding of the present invention, and are not to be construed as limiting the invention unless otherwise stated. It should be noted that elements constituting substantially identical functions and configurations are denoted by identical reference numerals in the present specification and the drawings, and hence redundant description has been omitted. Also, illustrations of elements that are not directly relevant to the present invention has been omitted.

First Embodiment [0018] FIG. 1 shows overall views of a kitchen sink (referred to merely as “sink 100” hereinafter) according to a first embodiment. FIG. 1(a) is an overall perspective view of the sink 100, and FIG. 1(b) is a diagram showing the sink 100 shown in FIG. 1(a) as viewed from above. FIG. 2 shows cross-sectional views of FIG. 1(b). FIG. 2(a) is a cross-sectional view taken along line A-A in FIG. 1(b), FIG. 2(b) is a cross-sectional view taken along line B-B in FIG. 1(b), and FIG. 2(c) is a cross-sectional view taken along line C-C in FIG. 1(b).

[0019] As shown in FIGS. 1(a) and 1(b), the sink 100 according to the first embodiment includes a bottom 110, a drain outlet 120, and a guide groove 130. As shown in FIG. 2(a), the bottom 110 is inclined downward as it extends toward the front side in the front-back direction, and a wall surface 140 is provided standing upright at the peripheral edge of the bottom 110 as shown in FIG. l(a). Moreover, in this embodiment, at the left corner on the back side of the sink 100, a bulge portion 150 in which a mounting hole 152 to be used to mount a faucet (not shown) in an upright position is formed in the top surface protrudes toward the front 6 side from a surface of the wall surface 140 that is located on the back side of the sink 100.

[0020] In this embodiment, as shown in FIGS. l(a) and l(b), the drain outlet 120 is arranged at a position that is in contact with a sink left end 102a and is located on the back side with respect to a sink front end 102b. In this embodiment, a configuration in which the drain outlet 120 is arranged so as to be in contact with the sink left end 102a is shown as an example, but there is no limitation to this configuration. It is sufficient that the drain outlet 120 is in contact with one of the left end and right end (side edges) of the sink 100, that is, one of the left end 102a and a right end 102c, as long as the drain outlet 120 is located on the back side with respect to the sink front end 102b.

[0021] When the drain outlet 120 is arranged at a position located on the back side with respect to the sink front end 102b so as to be along one of the left end and right end (left end 102a and right end 102c) of the sink 100 as in this embodiment, dead space can be reduced compared with a case in which the drain outlet is arranged in another region. This makes it possible to use the bottom 110 of the sink 100 more efficiently. Moreover, the drain outlet 120 is covered with a drain cover 160 that is arranged to be over the drain outlet 120. This prevents a user from seeing the drain outlet 120, thus making it possible to provide the sink 100 with improved aesthetics.

[0022] As shown in FIGS. 1(a) and l(b), the guide groove 130 extends along the left end 102a, which is a side end of the sink, from the front end 102b and is continuous with the drain outlet 120. As shown in FIG. 2(c), the guide groove 130 is a groove that is recessed downward with respect to the bottom 110, and is inclined downward as it extends toward 7 the side on which the drain outlet 120 is provided, that is, the back side, in the front-back direction. As shown in FIG. 2(b), an inclined region 132 is formed extending along the sink front end 102b. In this embodiment, the inclined region 132 has a groove shape and is inclined downward as it extends toward the side on which the drain outlet 120 is provided, that is, the left side of the sink 100, in the left-right direction. The inclined region 132 is connected to the guide groove 130 at a corner of the sink 100. That is, water that has dropped onto the bottom 110 of the sink first flows toward the front side, flows into the inclined region 132, and then flows from the inclined region 132 via the guide groove 130 to the drain outlet 120.

[0023] As described above, the bottom 110 of the sink 100 of this embodiment is inclined downward as it extends toward the front side. In addition, the mounting hole 152 to which a faucet is to be mounted is formed on the back side of the sink 100, and therefore, a position toward which water is discharged from the faucet is located on the upstream side of the bottom 110 with respect to the region on the front side of the bottom 110 in which vegetable waste and the like (referred to as “vegetable waste 102” hereinafter) that is shown schematically in FIG. 1 builds up. Accordingly, water discharged from the faucet flows and the vegetable waste 102 is washed away, in the direction indicated by arrow D1 shown in FIG. 2(a), that is, toward the sink front end 102b.

[0024] The inclined region 132 extending along the sink front end 102b is inclined downward as it extends toward the side on which the drain outlet 120 is provided, and therefore, the vegetable waste 102 that has reached the sink front end 102b is washed away in the direction indicated by arrow D2 shown in FIG. 2(b). At this time, the guide groove 130 is also inclined downward as it extends toward the drain 8 outlet 120, and therefore, the vegetable waste 102 that has been washed away into the guide groove 130 is washed away in the direction indicated by arrow D3 shown in FIG. 2(c) by water flowing into the guide groove 130, and reaches the drain outlet 120. Water that flows in the guide groove 130 is guided to the drain outlet 120.

[0025] With the above configuration, the vegetable waste 102 in the region located on the front side of the bottom 110 is automatically washed away toward the guide groove 130 via the inclined region 132 extending along the sink front end 102b by a stream of water on the bottom 110 that has been used to wash tableware and the like, and guided to the drain outlet 120. Therefore, at about the time when the washing of the tableware is finished, the disposal of the vegetable waste 102 is also finished. Accordingly, a user need not perform a conventional operation of gathering up the vegetable waste 102, thus making it possible to achieve high user convenience.

[0026] The vegetable waste 102 is automatically moved to the drain outlet 120 by a stream of water during a washing operation, and thus the vegetable waste is prevented from building up on the bottom 110 of the sink 100. In particular, in the sink 100 shown in FIG. 1, the bottom 110 has a flat surface and is inclined toward the sink front end 102b. Therefore, water flows in a wider region than that in the case of a conventional bottom that is inclined in the manner of a bowl, thus making it less likely that the vegetable waste 102 builds up. Accordingly, stains due to the built up vegetable waste 102 can be favorably prevented from adhering to the bottom 110 of the sink 100, thus making it possible to maintain a clean state at all times. Therefore, a user can easily clean the sink 100, thus making it possible to achieve high cleanability. 9 [0027] Furthermore, in this embodiment, the inclined region 132 having a groove shape is formed at the sink front end 102b. Accordingly, the vegetable waste 102 that has been washed away toward the front side of the sink 100 can be efficiently guided to the guide groove 130. In this embodiment, a configuration in which the bottom 110 has a flat surface and is inclined toward the front side, that is, the bottom 110 has an inclined flat surface, is shown as an example, but there is no limitation to this configuration. The bottom 110 may have a curved surface or may have a configuration including a flat surface and a curved surface in combination. Also, in this embodiment, a groove shape is shown as an example of the shape of the inclined region 132, but there is no limitation thereto. The inclined region 132 may have a flat surface or may have a configuration including a groove shape and a flat surface in combination.

Second Embodiment [0028] FIG. 3 is an overall view of a kitchen sink (referred to merely as “sink 200” hereinafter) according to a second embodiment, showing the sink 200 as viewed from above. FIG. 4 shows cross-sectional views of FIG. 3. FIG. 4(a) is a cross-sectional view taken along line A-A in FIG. 3, FIG. 4(b) is a cross-sectional view taken along line B-B in FIG. 3, and FIG. 4(c) is a cross-sectional view taken along line C-C in FIG. 3. It should be noted that, in the following embodiments, the same elements as those in the above embodiment are denoted by the same reference numerals as in the above embodiment, and descriptions thereof are omitted.

[0029] While the entirety of the bottom 110 of the sink 100 has a flat surface in the first embodiment, a bottom 210 of the sink 200 of the 10 second embodiment shown in FIG. 3 includes a first region 212 and a second region 214. In the sink 200 of the second embodiment, an inclined region 232 having a groove shape is formed extending to an intermediate position of the sink front end 102b.

[0030] Specifically, the first region 212 is a region of the bottom 210 in which the inclined region 232 is not formed on the front side. The second region 214 is a region of the bottom 210 that is located on the back side with respect to the inclined region 232. As shown in FIG. 3, the first region 212, that is, a region on a side opposite to the drain outlet 120, is inclined in the manner of a bowl toward an open end 232b of the inclined region 232, and the second region 214, which is a region on the drain outlet 120 side, has a flat surface and is inclined downward as it extends toward the inclined region 232.

[0031] The first region 212 is inclined in the manner of a bowl and thus is inclined downward as it extends toward the sink front end 102b in the front-back direction of the sink 200, as shown in FIG. 4(a). On the other hand, as shown in FIG. 4(c), the first region 212 is inclined downward as it extends toward the left side, that is, the open end 232b (see FIG. 3) of the inclined region 232 having a groove shape, in the left-right direction of the sink 200. Accordingly, the vegetable waste 102 is washed away from the first region 212 to the open end 232b of the inclined region 232 by water discharged from a faucet.

[0032] As shown in FIG. 4(b), the second region 214 has a flat surface and is inclined downward as it extends toward the inclined region 232. Accordingly, the vegetable waste 102 in the second region 214 is washed away from the second region 214 to the inclined region 232 by water discharged from the faucet. Then, in the same manner as in the first 11 embodiment, the vegetable waste 102 passes through the inclined region 232 and reaches the guide groove 130, and is guided to the drain outlet 120.

[0033] As described above, in the second embodiment, the bottom 210 includes the first region 212, which has a curved surface inclined in the manner of bowl, and the second region 214, which has a flat surface inclined toward the front side. That is, in the sink 200 of the second embodiment, at least a partial region is inclined toward the front side of the sink 200 in a linear manner. Even with this configuration, in the same manner as in the sink 100 of the first embodiment, the vegetable waste 102 on the bottom 210 can be favorably guided to the drain outlet 120.

[0034] As described above, in this embodiment, the inclined region 232 is formed not along the entire sink front end 102b but extending to an intermediate position of the front end 102b. This makes it possible to enhance the strength of the bottom 210 of the sink 200 compared with the case where the inclined region 232 is formed along the entire front end 102b. Therefore, the above-described effects can be obtained while warping, that is, deformation, of the bottom 210 of the sink 200 is suppressed. Moreover, the entire length of the groove can be reduced, and therefore, the final depth of the guide groove 130 can be reduced. Accordingly, extreme deep drawing becomes unnecessary, and therefore, stainless steel can be easily processed during press molding.

[0035] It should be noted that an effect of reducing the depth (difference in height) of the guide groove 130 can be achieved due to the second region 214 having a flat surface. If the second region 214 is inclined toward the open end 232b of the inclined region 232 in the manner of a 12 bowl, the second region 214 gradually increases in height as it extends toward the guide groove 130 (toward the left side in FIG. 3). This increases the difference in height between the sink left end 102a and the bottom of the guide groove 130. However, the second region 214 has a flat surface and thus is not inclined in the left-right direction. Therefore, the difference in height can be minimized, and thus processing is facilitated.

Third Embodiment [0036] FIG. 5 is an overall view of a kitchen sink (referred to merely as “sink 300” hereinafter) according to a third embodiment, showing the sink 300 as viewed from above. FIG. 6 shows cross-sectional views of FIG. 5. FIG. 6(a) is a cross-sectional view taken along line A-A in FIG. 5, and FIG. 6(b) is a cross-sectional view taken along line B-B in FIG. 5.

[0037] As shown in FIG. 5, an inclined region 332 of the sink 300 of the third embodiment includes a groove-shaped portion 332a having a groove shape and a flat portion 332b having a flat surface. As shown in FIG. 6(b), the groove-shaped portion 332a has a groove shape that is recessed downward with respect to the second region 214, which is a portion of the bottom of the sink 300, and the bottom of the groove-shaped portion 332a is constituted by the flat portion 332b.

[0038] In this embodiment, as shown in FIG. 5, the flat portion 332b extends beyond the open end 232b of the groove-shaped portion 332a along the sink front end 102b. Again, the open end 232b, which is located at an intermediate position, is an end of the groove-shaped portion 332a, and only the flat portion 332b, which constitutes the bottom of the groove-shaped portion 332a, is formed in a shape that extends toward the front side of the first region 212. Even when the 13 inclined region 332 has a configuration including a groove shape and a flat surface in combination as described above, the same effects as those of the above-described sink 100 of the first embodiment can be obtained.

[0039] With the above configuration, as shown in FIGS. 5 and 6(a), in a region on the front side of the sink 300 in which the groove-shaped portion 332a is not formed, a boundary line 332c is formed between the flat portion 332b and the first region 212, which is a portion of the bottom of the sink 300. Accordingly, it appears that a guide groove is formed on the front side of the first region 212. Therefore, it is possible to lessen the feeling that something is amiss felt by the user caused by no groove being formed in the first region 212.

Fourth Embodiment [0040] FIG. 7 is an overall view of a kitchen sink (referred to merely as “sink 400” hereinafter) according to a fourth embodiment, showing the sink 400 as viewed from above. FIG. 8 shows cross-sectional views of FIG. 7. FIG. 8(a) is a cross-sectional view taken along line A-A in FIG. 7, and FIG. 8(b) is a cross-sectional view taken along line B-B in FIG. 7.

[0041] As shown in FIG. 7, the sink 400 of the fourth embodiment includes only the guide groove 130 extending in the front-back direction, and does not include a groove shape and a flat surface that extend along the sink front end 102b. However, a bottom 410 is inclined obliquely downward toward an open end 130a of the guide groove 130 in the manner of a bowl. Therefore, as shown in FIG. 8(a), the bottom 410 is inclined downward as it extends toward the front side in the front-back direction of the sink 400. On the other hand, as shown in FIG. 8(b), the bottom 410 is inclined downward as it extends toward a side on which the open end 130a of the guide groove 130 is located, that is, a side on 14 which the drain outlet 120 is provided, in the left-right direction of the sink 400. As a result, the sink front end 102b is also inclined downward as it extends toward a side on which the drain outlet 120 is provided.

[0042] With the above configuration, the vegetable waste 102 is washed away from the bottom 110 to the open end 130a of the guide groove 130 by water discharged from a faucet (not shown), passes through the guide groove 130, and is guided to the drain outlet 120. Even with the configuration as described above in which the bottom 410 of the sink 400 as a whole is inclined toward the front side of the sink 400 in the front-back direction and is obliquely inclined toward the side on which the drain outlet 120 is provided, in the left-right direction, the same effects as those of the sink 100 of the first embodiment can be obtained.

Fifth Embodiment [0043] FIG. 9 is an overall view of a kitchen sink (referred to merely as “sink 500” hereinafter) according to a fifth embodiment, showing the sink 500 as viewed from above. A bottom 510 of the sink 500 shown in FIG. 9 has a flat surface and is inclined toward a corner that is located on the front side of the sink 100 and at which the open end 130a of the guide groove 130 is located. Even with the configuration as described above in which a distinct channel having a groove shape, a flat surface, or the like is not formed at the sink front end, the same effects as those of the sink 100 of the first embodiment can be obtained.

Sixth Embodiment [0044] FIG. 10 is an overall view of a kitchen sink (referred to merely as “sink 600” hereinafter) according to a sixth embodiment, showing the sink 600 as viewed from above. FIG. 11 shows cross-sectional views of FIG. 10. FIG. 11(a) is a cross-sectional view taken along line A-A in FIG. 15 10, and FIG. 11(b) is a cross-sectional view taken along line B-B in FIG. 10.

[0045] As shown in FIG. 10, a bottom 610 of the sink 600 of the sixth embodiment includes a first region 612 and a second region 614. The first region 612 is a region of the bottom 610 in which the bulge portion 150 is not formed on the back side. The second region 614 is a region of the bottom 610 in which the bulge portion 150 is formed on the back side.

[0046] The first region 612 is inclined downward as it extends toward the front side in the front-back direction of the sink 600 as shown in FIG. 11(a), and is inclined downward as it extends toward a boundary 616 between the first region 612 and the second region 614 in the left-right direction of the sink 600 as shown in FIG. 10. That is, the first region 612 of the sink 600 is inclined in the manner of a bowl as it extends toward the end portion on the front side of the boundary 616. On the other hand, as shown in FIGS. 10 and 11(b), the second region 614 has a flat surface and is inclined downward as it extends toward the sink front end 102b.

[0047] Furthermore, this embodiment is characterized in that the guide groove 130 and an inclined region including a flat surface 632 extending along the sink front end 102b are formed in the sink 600. The flat surface 632 extends along the sink front end 102b and is inclined downward as it extends toward a side on which the drain outlet 120 is provided. The flat surface 632 does not have a groove shape, and a boundary line 632a is formed between the flat surface 632 and the first region 612 or the second region 614. Accordingly, the vegetable waste 102 that has been washed away from the bottom 610 by water discharged from a faucet reaches the flat surface 632, which is the inclined region, 16 and passes through the guide groove 130 via the flat surface 632, and reaches the drain outlet 120. Even when the inclined region is constituted by the flat surface 632 over the entire width of the sink front end, the same effects as those of the sink 100 of the first embodiment can be obtained.

[0048] FIG. 12 shows diagrams illustrating other shapes of the drain outlet 120, showing a schematic view of the sink 100 shown in FIG. 1(b). Although the drain outlet 120 having a substantially triangular shape (right-angled triangle) as shown in FIG. 1(b) is shown as an example in the first embodiment, there is no limitation thereto. For example, the drain outlet 120 may be a drain outlet 120a having a rectangular shape as shown in FIG. 3(a) or a drain outlet 120b having a circular shape as shown in FIG. 4(b).

[0049] Although the sink 100 has a laterally oblong rectangular shape in the first embodiment, this is merely an example, and there is no limitation thereto. For example, the sink 100 may have another shape such as a circular shape or an L shape. Furthermore, although the configuration in which the sink 100 of the first embodiment includes a bulge portion 150 is shown as an example, there is no limitation to this configuration, and a configuration in which the bulge portion 150 is not provided and a faucet, that is, the mounting hole 152 to which the faucet is to be mounted, is arranged outside the sink 100 is also possible. The bulge portion 150 and thus a faucet (mounting hole 152) are not necessarily arranged at the left corner on the back side of the sink 100, and may be arranged at any position such as the center or the right corner.

[0050] Although preferred embodiments of the present invention have 17 been described above with reference to the accompanying drawings, it should be appreciated that the present invention is not limited to the embodiments described above. It will be apparent for a person skilled in the art that various modifications and variations may be made within 5 the scope of the invention as defined in the appended claims, and those modifications and variations should be understood to be included within the technical scope of the present invention.

INDUSTRIAL APPLICABILITY 10 [0051] The present invention can be used as a kitchen sink to be integrated into a kitchen cabinet of a built-in kitchen unit or the like. 18

Claims

1. A kitchen sink comprising: a bottom that is inclined downward as the bottom extends toward a front side in a front-back direction! a drain outlet that is in contact with one of a sink left end and a sink right end and is arranged at a position on a back side with respect to a sink front end! and a guide groove that extends along a sink side end and is continuous from the sink front end to the drain outlet, wherein the sink front end is inclined downward as the sink front end extends toward a side on which the drain outlet is provided.

2. The kitchen sink according to claim 1, wherein the bottom has a flat surface, a curved surface, or a surface that is a combination thereof.

3. The kitchen sink according to claim 2, wherein a region of the bottom on the drain outlet side in a left-right direction has a flat surface, and a region on a side opposite to the drain outlet has a curved surface similar to that of a bowl.

4. The kitchen sink according to claim 1 or 2, wherein the bottom as a whole is inclined toward the sink front side in a front-back direction and is obliquely inclined toward a side on which the drain outlet is provided, in a left-right direction.

5. The kitchen sink according to any one of claims 1 to 4, wherein an inclined region having a groove shape, a flat surface, or a shape that is a combination thereof is formed at the sink front end.