JP2996383B2 - Drainage equipment and sink - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sink, and more particularly to a drainage device for connecting a sink to a drainage pipe on a building side and a drainage portion of the sink.

[0002]

2. Description of the Related Art Sinks to be incorporated into kitchen sinks are generally tubs having an appropriate depth.
Drainage holes are provided at the bottom and connected to drainage pipes on the building side.

[0003] The drain port is almost always located at the center or one side of the sink without presenting, for example, Japanese Utility Model Laid-Open Nos. 4-12771 and 4-134576. The bottom has a slope so that water flows toward this drain port side. The drain port is covered with a hole for collecting large dust, and a dust container or the like for catching fine dust is installed below the hole.

[0004] In the case where the drain is opened at the bottom of the sink as described above, when a large pot or tableware is placed in the sink for washing, the pot or tableware may be covered on the drain. For this reason, when washing with a large amount of water, drainage becomes slow and tends to accumulate in the sink.

On the other hand, in order to prevent the drain port from being blocked by washings, for example, a Japanese Utility Model Laid-Open No. 4-17445.
As described in Japanese Patent Application Laid-open No. 9, there is an apparatus in which a drain port is opened on a rising surface on the back side of a sink.

[0006]

If a drain port is provided on the rising wall as described above, even if a large number of washings are placed on the bottom surface of the sink, as long as they are slightly separated from the rising wall, there is no problem in drainage. Absent.

[0007] However, in the case where a drain port is opened in the rising wall on the back side, a connection portion with the drain pipe on the building side is also located on the back side of the sink. For this reason, when dust and the like are washed away and accumulated, it is necessary to extend the arm long before the sink in order to remove the dust and the work is difficult.

[0008] Even if the size of the drainage outlet is a slit shape elongated in the frontage direction of the sink and short in the vertical direction, there is no problem in draining from the sink. However, in order to remove dust from the connection with the drain pipe, the length must be somewhat longer in the vertical direction as described in the above-mentioned publication. For this reason, the appearance inside the sink is impaired, and the drain outlet itself becomes large, so that small items, tableware, and the like may fall into the drain pipe side.

As described above, in the conventional sink structure, an attempt has been made to improve the obstacle due to the clogging of the drainage channel due to the tableware or the like stored in the sink, but there remains a problem in terms of usability and the like.

The problem to be solved in the present invention is to make it possible to drain the water from the sink more quickly and to easily collect refuse.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a drainage device provided in a drainage channel between a sink and a drainage pipe on the building side, wherein the drainage tank is connected to the sink and incorporated in the drainage tank. A tray for receiving garbage, and a drain trap disposed downstream of the tray, wherein the drain tank includes a flange portion joined from a bottom surface of the sink to a surrounding rising wall portion, and the tray is The part to be incorporated is provided as a drainage channel bulged outside the flange portion joined to the rising wall of the sink , and the dust receiving tray is provided .
The tray has a drain where the drainage tank is joined to the bottom side of the sink.
Ing positioned below the level of the flange portion.

[0012] In such a configuration, the dust receiving tray can be one in which the drainage tank is located below the level of the flange portion joined to the bottom surface side of the sink, and the dust receiving tray is drained. It can be removable with respect to the aquarium. Further, the drainage tank may be provided with a placing portion for placing a tray for receiving dust and holding it in a fixed position.

Further, the drainage tank and the drainage trap are separated from each other so as to have a joining relationship capable of forming an internal flow path, and the drainage tank has at least a circular outer shape on the connection end side with the drainage trap. It can be.

Further, a sink using such a drainage device extends from a bottom surface of the sink to a rising wall around the sink.
It is possible to provide a configuration in which an opening for drainage is provided to be surrounded by the flange portion of the drainage device, and the flange portion is joined in accordance with the position of the opening to form a drainage channel.

[0015]

[0016]

The rising wall of the sink is swelled outward, and a drainage opening is formed from the swelled portion to the bottom surface, so that the sink has a flat surface and a rising surface at the boundary between the bottom portion and the rising portion. Thus, a flow path cross section having an inclined posture is formed. For this reason, even if tableware or the like covers the opening on the bottom side, drainage is performed from the opening of the rising portion, and the flow of drainage is not hindered.

[0017] By positioning the tray for dust collection at a level lower than the flange joined to the bottom surface of the sink, the upper end of the tray does not protrude above the bottom surface of the sink, which hinders the washing operation. Nothing. Also, by allowing the tray to be removed from the drain tank,
The collection and removal of dust accumulated on the tray and the cleaning of the tray itself are simplified. Furthermore, if the mounting portion for holding the tray is provided in the drainage tank, the drainage tank is stably held against the drainage flowing down from the sink, and no vibration or noise is generated.

In the case where the drainage tank and the drainage trap are provided separately, no matter what the cross-sectional shape of the space for accommodating the tray, if the portion connected to the drainage trap has a circular outer shape, the drainage trap and the drainage trap can be separated. Screw joining between
Assembly is simplified.

Similarly, a sink obtained by opening an opening for drainage from the bottom surface of the sink to the rising wall and aligning and joining a flange portion of the drainage device to this opening portion enables rapid drainage similarly.

Further, even in the case where the sink itself is formed with a portion which bulges outward from the rising wall and provided with a drainage opening which is open to the bottom side, the same as in the case of the sink having the drainage device attached thereto. Quick drainage is possible.

[0021]

FIG. 1 is a schematic perspective view of a sink provided with a drainage device according to the present invention.

In the figure, a sink 1 is fixed to a counter 51 attached to an upper end of a cabinet 50.
The sink 1 is made of, for example, a stainless steel plate, and is of an under-counter type in which a rim 1a formed around the upper end of the sink 1 abuts against the lower surface of the counter 1 and is fixed by a holder.

A sub-counter 1b slightly lower than the rim 1a is formed on the left and right sides of the sink 1 except for the center part in the frontage direction, and a faucet 2 is provided on the left sub-counter 1b and a right side is provided. The sub-counter 1b has a recessed pocket 1c for accommodating a container such as a detergent. Then, a drainage opening 1d for connecting the drainage device 3 is opened from the bottom of the sink 1 sandwiched between these sub-counters 1b to the rising wall at the back.

As shown in the plan view of the sink 1 in FIG. 2, the drainage opening 1d has a square planar opening cross section, and has a shape protruding forward from the back wall of the sink 1. The vertical section of the opening edge has a shape in which the letter L is turned 90 ° counterclockwise.

FIG. 3 is a vertical sectional side view showing the essential parts of the drainage device 3 and the sink 1, FIG. 4 is a partially cutaway front view of the drainage device 3, and FIG.

The drainage device 3 includes a drainage trap 4 having a lower end connected to a drainage pipe (not shown) provided in the cabinet 50 and connected to a drainage passage on the building side, a drainage tank 5 joined to the upper end of the drainage trap 4, and a drainage tank 5 connected to the drainage trap. The tray 6 is provided with a trash receiving tray 6 which can be taken in and out of the water tank 5.

The drain trap 4 has a drain tube 4a built therein and a surrounding area covered with a cover 4b, similarly to those used for sealing water in various drain devices. Water can be sealed by a substantially S-shaped flow path formed by the cylinder 4a and the cover 4b.

When the space between the drain trap 4 and the drain tank 5 is sealed by a connector 7 made of, for example, a hard synthetic resin, they are integrally connected at that time. This connector 7
In the illustrated example, the drain trap 4 and the drain tank 5 are connected to the inner periphery of the upper end of the drain trap 4 and the outer periphery of the lower end of the drain tank 5 by screws 7a and 7b, respectively. Piece 7c having a cross-sectional shape abutting against
This enables seal joining.

The drainage tank 5 has a male screw 5b formed on the outer periphery thereof as a cylindrical connection part 5a for screwing the lower end thereof to the connector 7, and the upper end side has a square opening cross section into which the tray 6 can be dropped. It is what it was. The upper end side of the drainage tank 5 has a vertical cross-sectional shape that changes the direction of the opening from the core of the connecting portion 5a toward the front obliquely upward, and a flange portion 5c for joining to the outer peripheral surface of the sink 1 is provided at the upper end portion. .

As shown in the exploded perspective view of FIG. 6, the flange portion 5c has a flat flange 5d which abuts against the bottom surface of the sink 1.
And a rising flange 5e, which abuts against the peripheral surface of the rising wall of the sink 1, is integrally formed. That is, the flat flange 5d and the rising flange 5e have such a width that the inside and outside of the opening edge of the drain opening 1d of the sink 1 can be bordered, and have a shape that fits the profiles of the bottom surface of the sink 1 and the rising wall. It is what it was. As is apparent from FIG. 3, the rising flange 5e is positioned so as to straddle the opening cross section of the drainage tank 5 at the level of the flat flange 5d in the width direction. The end on the side is incorporated on the back side with respect to the rising flange 5e.

As shown in FIG. 6, the tray 6 is formed in a flat tub shape using a frame 6a using a metal plate as a frame, and a net 6b using, for example, a punching metal or the like on the bottom surface and the peripheral surface of the frame 6a. Is pasted. The outer periphery of the rim 6c at the upper end, which constitutes a part of the frame 6a, has a shape that can exactly fit into the inner peripheral wall of the drainage tank 5 when the tray 6 is set. Also,
On the bottom surface of the lower frame 6a, two cushions 6d are provided at both ends in the width direction. These cushions 6d are placed on mounting portions 5f formed in steps on the inner wall in the width direction of the drainage tank 5, and at this time, are held in the state of FIG.

The integration of the drainage device 3 into the sink 1 is shown in FIG.
As shown in the figure, by making the outer periphery of the flange portion 5c wider than the opening edge of the drainage opening 1d of the sink 1,
The outer shell of the flange 5c can be joined by bonding or welding. Instead of such a connecting structure, for example, as described in Japanese Utility Model Publication No. 6-45496, the drainage device 3 may be detachable from the sink 1 by lever operation.

In the above configuration, the drainage water when washing with the sink 1 flows out to the drainage device 3 from the drainage opening 1d located on the back side of the sink 1. At this time, as shown in FIG.
Even when 0 is set, drainage is possible as long as the entire drainage opening 1d is not covered with the washing 60 as shown in FIG.

Further, even when the washing 60 is not a circular one as shown in the figure, but a rectangular one along the inner wall on the back side of the sink 1, for example, the drain port is located at the center of the sink 1. The degree to which the entirety of the drainage opening 1d is covered by the wash 60 is smaller than that of the structure having the structure. For this reason, in the ordinary washing operation, it is possible to use the washing machine without greatly affecting drainage, and it is not necessary to frequently move the washing in the sink 1.

Further, if the vertical dimension of the washing 60 is small and lower than the opening area of the rising portion of the drain opening 1d, the entire drain opening 1d on the bottom side of the sink 1 is hidden by the washing 60. Drainage is performed promptly.

Further, since the tray 6 for receiving dust is disposed in the drainage device 3 at a position slightly lower than the level of the bottom surface of the sink 1, even if dust accumulates on the tray 6, it is necessary to hold the arm. It can be easily removed while being extended, and dust cleaning becomes easier and clogging of drainage is reduced as compared with the conventional example.

FIG. 8 is a schematic view of a sink according to the invention according to claim 7 of the present application, and is a schematic view of an example in which the planar shape of a tray for receiving dust is substantially circular.

In the figure, a sink 11 is formed of, for example, a synthetic resin, and is integrally provided with a drain chamber 12 having a cross section substantially similar to that shown in FIG. ing. The drain chamber 12 has a lower end connected to a drain pipe (not shown) provided in the cabinet 50, and a trap is provided on the drain pipe side.

The drain chamber 12 has a portion of the rising wall on the back side of the sink 11 bulging outward, and a portion from the bulged portion to the inside of the bottom surface is formed as a drain opening 12a. Further, the tray 13 is different from the previous example only in that the planar shape is circular, and the other configuration is the same.
And the incorporation of the tray 13 into the drain chamber 12
It is almost the same as the previous example.

Even in the case where such a circular tray 13 is provided, quick drainage is maintained even when the washing object is covered, and the collection of dust can be similarly easily performed. By integrally forming the drainage chamber 12 with the sink 1, the number of parts and the number of assembling steps are reduced as compared with the previous example, and the cost is improved.

FIG. 9 is a schematic view showing still another example of the structure in which the drain chamber 12 shown in FIG.

The drain chamber 12 formed on the back side of the sink 11 has a sectional shape protruding from the back of the sink 11 and falling downward from the bottom surface, and has an opening for drainage from the rising wall to the bottom portion. . The drain chamber 12 has a stepped portion 1 whose lower end is reduced in diameter.
2b, and the lower end thereof can be connected to a drain pipe.

The tray 13 may be rectangular or circular as shown in FIG. Further, by making the height of the drain chamber 12 appropriate for the bulk of the tray 13, the tray 13 can be taken out of the drain chamber 12 by moving the drain 13 as shown in FIG. It is possible to incorporate by the reverse operation.

[0044]

According to the drainage device of the present invention and the sink provided with the same, since the drainage opening faces the inside of the sink from the bottom of the sink to the rising wall, the opening on the bottom side is covered by tableware or the like. Even if it is closed, the drainage from the opening on the rising wall side is maintained, so that the drainage can be quickly drained without water remaining in the sink, and the washing work becomes easier.

Similarly, even if a portion swelling outward from the rising wall of the sink is provided, and the swelling portion and the portion connected to the bottom portion are formed as openings for drainage, the drainage can be performed quickly as well. If such a bulging portion and a drainage flow path downstream of the bulging portion can be formed integrally with the sink, assembly and the number of parts can be reduced, and cost can be improved.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a sink provided with a drainage structure of the present invention and showing a sink portion thereof.

FIG. 2 is a plan view of the sink of the sink shown in FIG. 1;

FIG. 3 is a longitudinal sectional view showing a main part of a drainage device and a sink.

FIG. 4 is a cutaway front view showing a main part of the drainage device.

FIG. 5 is a plan view of the drainage device.

FIG. 6 is an exploded perspective view of a drainage tank and a tray.

FIGS. 7A and 7B are views for explaining the state of drainage when washing is placed on a sink, where FIG. 7A is a schematic longitudinal sectional view and FIG. 7B is a plan view of a main part.

8A and 8B are schematic views of an example in which a drain chamber is formed integrally with a sink, wherein FIG. 8A is a schematic perspective view of the sink, and FIG. 8B is a plan view showing a tray setting portion; (C) of the figure is a schematic vertical sectional view showing the incorporation of the tray into the drain chamber.

9A and 9B show another example in which a drain chamber is integrally formed with a sink, wherein FIG. 9A is a longitudinal sectional view of a main part thereof, and FIG. 9B is a schematic view showing a tray attaching / detaching procedure. It is.

[Explanation of symbols]

 Reference Signs List 1 sink 1d drainage counter 2 faucet 3 drainage device 4 drainage trap 5 drainage tank 5a connection portion 5c flange portion 5d flat flange 5e rising flange 5f mounting portion 6 tray 7 connector 11 sink 12 drainage chamber 12a step portion 13 tray

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E03C 1/26 E03C 1/18

Claims (3)

(57) [Claims] 1. A drainage device provided in a drainage channel between a sink and a drainage pipe on a building side, comprising: a drainage tank connected to the sink; a trash receiving tray incorporated in the drainage tank; With a drain trap arranged downstream of the tray,
The drainage tank includes a flange portion that joins from a bottom surface of the sink to a surrounding rising wall portion, and bulges a portion into which the tray is incorporated to an outside of a flange portion that joins the rising wall portion of the sink. A drain device, wherein the tray for dust is provided below a level of a flange portion where the drain tank is joined to a bottom side of the sink. 2. An opening for drainage surrounded by a flange of the drainage device according to claim 1 is provided from the bottom surface of the sink to a rising wall around the sink, and the flange is joined to the opening in accordance with the position of the opening. Sink that forms a drainage channel. 3. The drainage tank and the drainage trap are separated from each other so as to have a joint relationship capable of forming an internal flow path, and the drainage tank has a circular shape at least on the connection end side with the drainage trap. 3. The sink according to claim 2, wherein the sink is shaped.