JP2007247350A - Drainage structure of sink - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage structure of a sink capable of solving problem of a conventional structure wherein the aesthetic appearance of a drain port which can be seen directly from a user is worse and the size of the drain port is not appropriate for the drain groove (limited by the drain groove) since it is formed in the drain groove. <P>SOLUTION: The bottom surface 2 of the sink has an inclination surface tilting downward from the front side to the bottom side and led to a bottom wall surface 3. A drain groove part 4 is formed along the bottom wall surface 3 of the tilted surface through the entire length, and a drain groove enlarged part 5 communicating with the drain groove part 4 at the bottom part 2 is formed in the tilted surface in a channel-shaped wall surface 6. A locking step part 7 locking a cover plate 8 is formed on the channel-shaped wall surface 6. A space between the lower surface of the cover plate 8 and the bottom part of the drain groove part 4 is used as a drain inflow port 10. A drain port 9 is formed at the drain groove enlarging part 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention has a good appearance because the drain outlet is difficult to touch directly, and the drain outlet is capable of draining the amount of drainage required by the sink without being limited by the size of the drainage groove. It relates to the drainage structure of the sink that can be selected.

  More specifically, the bottom surface of the sink has an inclined surface that is inclined downward from the front side toward the back side and reaches the back wall surface, and forms a drainage groove portion along the back wall base portion of the inclined surface and drains. A drain groove widening portion communicating with the groove portion and the bottom portion is formed with a U-shaped wall surface on an inclined surface, and a locking step portion for locking the lid plate is formed on the U-shaped wall surface, so that the bottom surface of the lid plate and the drain groove widening are formed. Since the space between the bottom of the opening is the drainage inlet and the drainage outlet is formed in the drainage groove widening part, the drainage port is covered with a lid plate and is difficult to see from the front side (user side) It is. Further, since the drainage port is formed in the drainage groove widening portion formed on the inclined surface, the drainage port relates to the drainage structure of the sink that is not directly restricted by the size of the drainage groove portion.

Conventionally, as shown in Patent Document 1, a drainage structure of a sink is known in which a drainage groove that is continuous in the peripheral edge of the bottom surface of the sink is formed and a drainage port is formed in the drainage groove along the back wall base. In the drainage structure of this sink, the drainage port is not visible because it looks directly from the front side (user side). In addition, since the drain port is formed in the drain groove, the drain port needs to be smaller than the drain groove and is restricted by the drain groove. In other words, the drain outlet is not selected from the amount of drainage required for the sink, but is limited by the width of the drainage groove, so there is a possibility that an inappropriate drain outlet may be selected.
Japanese Utility Model Publication No. 53-96456 (FIGS. 1 and 3)

  The present invention has the disadvantage of the drainage structure of the sink in the above-mentioned Patent Document 1, that is, the poor appearance that the drainage port is directly visible to the user, and the size of the drainage port due to the drainage groove that comes from providing the drainage port in the drainage groove. The problem is to solve inappropriateness (limitation).

  More specifically, a cover plate is provided above the drainage port, and the space between the bottom surface of the cover plate and the bottom of the drainage groove is used as a drainage inlet. Further, the drainage groove widening part communicates between the drainage groove and the bottom. Is formed with a U-shaped wall on an inclined surface, and a drain outlet is formed in the drain groove expanding portion.

  In order to solve the above-described problems, the sink drainage structure according to the present invention has a sloped bottom surface that slopes downward from the near side to the far side and reaches the far wall surface. The drainage groove part is formed in the entire length along the back wall base of the inclined surface, and the drainage groove widening part communicating with the drainage groove part and the bottom is formed on the inclined surface with the U-shaped wall surface. A locking step portion for locking the lid plate is formed, and a space between the lower surface of the lid plate and the bottom portion of the drainage groove portion is used as a drainage inlet, and a drainage port is formed in the drainage groove widening portion.

  The drainage structure of the sink according to claim 1, wherein the drainage groove widening part communicating with the drainage groove part and the bottom part is formed with a U-shaped wall surface on the inclined surface, and a lid plate is provided between the bottom surface of the lid plate and the bottom part of the drainage groove part. Since the space is used as the drainage inlet and the drainage port is formed in the drainage groove widening portion, the drainage port is not directly visible from the user side, and it looks good. However, since the drain outlet is not formed in the drain groove portion but is formed in the drain groove expanding portion, the drain port can be selected to have an appropriate size. That is, if the drainage groove widening portion is enlarged, a large drainage port can be provided. Even if the drainage groove widening portion is enlarged, the effective use area of the sink is not significantly affected because the cover plate is provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a plan view of a sink according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line XX of the embodiment shown in FIG. 1, FIG. 3 is a perspective view of an essential part of the embodiment shown in FIG. It is a perspective view of the state where the cover plate of 3 was removed. In FIG. 1, 1 is a sink, 2 is a bottom surface of the sink, 3 is a back wall surface, and 4 is a drainage groove.

  As shown in FIG. 2, the sink 1 has an inclined surface in which the bottom surface 2 is inclined downward from the front side toward the back wall 3. A drainage groove 4 is formed over the entire length along the back wall 3 base of the inclined surface. The drainage groove 4 has a problem that the effective area of the sink 1 becomes narrow when the width is increased, and its size is limited. A drain groove widening portion 5 that communicates at the bottom is formed at a substantially central portion of the drain groove portion 4.

  As shown in FIGS. 3 and 4, the drain groove expanding portion 5 is formed with a U-shaped wall surface 6 on the inclined surface of the bottom surface 2, and a locking step portion 7 is formed on the U-shaped wall surface 6. A lid plate 8 is locked to the stop portion 7 and covers the drain groove expanding portion 5. A drain outlet 9 is formed in the drain groove expanding portion 5. The U-shaped wall surface 6 does not have to be strictly U-shaped and may be semicircular. Denoted at 10 is a drainage inlet formed in a space between the lower surface of the cover plate 8 and the bottom of the drainage groove 4, and a downward slope reaching the drainage port 9 is formed.

  In the sink 1, the used water falls to the bottom surface 2 of the sink 1, flows down toward the inner wall surface 3 by the inclined surface of the bottom surface 2, and flows into the drain groove 4. The wastewater that has flowed into the drainage groove portion 4 flows toward the drainage groove widening portion 5 according to the gradient, and enters the drainage groove widening portion 5 that communicates with the bottom through the drainage inlet 10. Water entering from the drainage inlet 10 is drained from the drainage port 9.

  In the drainage structure of the sink 1, the drainage port 9 cannot be seen by the lid plate 8 from the user side. Further, since the drainage port 9 is formed in the drainage groove widening part 5 communicating with the drainage groove part 4 at the bottom part, the size of the drainage groove part 4 is not limited.

The top view of the Example of the sink concerning this invention. XX sectional drawing of the Example shown in FIG. The principal part perspective view of the Example shown in FIG. The principal part perspective view of the state which removed the cover plate from the state of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sink 2 Bottom face 3 Back wall surface 4 Drainage groove part 5 Drainage groove expansion part 6 U-shaped wall surface 7 Locking step part 8 Cover plate 9 Drain outlet 10 Drainage inlet

Claims (1)

  The bottom surface of the sink has an inclined surface that inclines downward from the near side to the far side and reaches the inner wall surface. A drainage groove portion is formed along the rear wall base portion of the inclined surface along the entire length and communicates with the drainage groove portion and the bottom portion. The drainage groove expanding portion is formed with a U-shaped wall surface on the inclined surface, and a locking step portion for locking the lid plate is formed on the U-shaped wall surface, and the space between the lower surface of the lid plate and the bottom portion of the drainage groove portion A sink drainage structure in which the drainage inlet is formed and a drainage port is formed in the drainage groove widening portion.

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