JP2000273930A - Drainage trap for sink - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage trap for sink capable of being miniaturized while sufficiently ensuring capacity to store kitchen refuse and extending a storage space under the sink of a sink unit. SOLUTION: A net-cage 4 capable of being detached to a cylinder main body is provided to the upper part of the cylinder main body 7 with the bottom. An outer cylinder body 8 is erected upward of the bottom of the cylinder main body, an inner cylinder body 9 capable of being detached to the cylinder main body places the upper end thereof upward of the upper end of the outer cylinder body and is inserted into the outer cylinder body, a seal water section is formed of the both outer and inner cylinder bodies, and a joint section 7b between the cylinder main body and a drain pipe is provided to at least the side section of the lower part of the cylinder main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap for a sink. More specifically, the invention of this application relates to a sink drain trap that can be made compact while ensuring a sufficient storage capacity for garbage and that allows a wide storage space under the sink of the sink unit.

[0002]

2. Description of the Related Art A drain outlet of a sink provided in a sink unit is provided with a drain trap for collecting dust during drainage and for preventing odor from being emitted from a drain pipe. This sink drain trap is generally shown, for example, in FIG. That is, the drain trap (1) is disposed at a drain port (3a) formed at the bottom of a sink (3) provided in the sink unit (2), and has a cylindrical main body (1).
a), and a net basket (4) for collecting garbage is provided on the upper part thereof. Further, a water-sealing portion (5) is provided at a lower portion of the main body (1a), and an odor-preventing owan (5a) is attached to an upper portion of the water-sealing portion (5).

[0003] The drain trap (1) collects dust discharged from the drain (3a) of the sink (3) together with the drain with the net basket (4), and sends out only the drain to the drain pipe (6).
In addition, the water sealing portion (5) provided with the deodorant Owan (5a) prevents the odor from being discharged from the drain pipe (6).

[0004]

However, since this sink drain trap (1) is disposed at the drain (3a) of the sink (3), as shown in FIG. ) Projection into the storage part (2a) provided in the lower sink unit (2), and furthermore, the connection part (1) with the drain pipe (6)
b) is disposed at the bottom of the main body (1a) and the drain pipe (6) is disposed in the storage section (2a) of the sink unit (2), so that the storage space is reduced by that amount. There is a problem.

[0005] Therefore, studies are being made on improvement of the drain trap (1). For example, as shown in FIG. 8, in the improved drain trap (20), the total length (H) is made shorter than 275 mm of the drain trap (1) shown in FIG. The connection part (1b) with 6) is disposed on the lower side of the main body (1a). Therefore, the drain trap (20) is smaller than the drain trap (1) shown in FIG. 7, and the connection part (1b) is arranged facing the back plate part (2b) of the sink unit (2). Therefore, most of the drain pipe (6) can be arranged behind the sink unit (2), and the storage portion (2a) of the sink unit (2) is enlarged.

However, miniaturization of such a drain trap (20) conventionally relies exclusively on reducing the height (h) of the net basket (4), that is, as shown in FIG. In the drain trap (1), the height (h) of the net basket (4) is 1
The drain trap shown in FIG.
In (0), it is reduced to 47 mm. For this reason, the drain trap (20) shown in FIG. 8 has a drawback that the storage capacity of the trash in the net basket (4) is insufficient. From the viewpoint of usability, it is preferable that the storage capacity of the garbage is slightly larger.

[0007] The invention of this application has been made in view of the circumstances described above, and it is possible to reduce the size while ensuring a sufficient storage capacity for garbage, and make it possible to widen the storage space below the sink of the sink unit. The purpose is to provide a drain trap for sinks.

[0008]

Means for Solving the Problems The present invention solves the above-mentioned problem by providing a drain trap for a sink, which can be detachably mounted on the upper part of a bottomed cylinder main body. A net cage is provided, and at the bottom of the cylinder body, an outer cylinder is erected upward, and an inner cylinder detachably attached to the cylinder body has its upper end positioned above the upper end of the outer cylinder. It is arranged and inserted into the outer cylinder, and the outer cylinder and the inner cylinder form a water-sealing portion, and the lower portion of the cylinder main body has a connection portion with a drain pipe at least on its side. The present invention provides a drain trap for a sink (Claim 1).

Further, according to the invention of this application, a dust receiver having a mesh smaller than the mesh of the mesh basket is provided between the mesh basket and the upper end of the inner cylinder so as to be detachable from the cylinder body. Item 2), the axis of the outer cylinder is shifted from the axis of the cylinder main body (Claim 3), and a connection portion with the drain pipe is also provided at the bottom of the cylinder main body excluding the outer cylinder (Claim 3). Item 4) is provided as a preferred embodiment.

The drainage trap for a sink according to the invention of the present application will be described in more detail below with reference to the drawings.

[0011]

FIG. 1 is a sectional view showing an embodiment of a sink drain trap according to the present invention. As shown in FIG. 1, the drain trap for sink (30) of the invention of the present application includes a bottomed cylinder body (7). A net basket (4) is detachably provided on the upper part of the cylinder body (7), similarly to the conventional drain traps (1) and (20) shown in FIGS. The structure to be detachable is not particularly limited. For example, a structure can be employed in which the upper end of the net basket (4) can be locked to the upper end of the cylinder body (7). At the upper end of the net basket (4), a small piece-shaped strap (4a), a rotatable handle, and the like are provided.
Removal of the net basket (4) can also be facilitated.

An outer cylinder (8) is provided upright on the bottom of the cylinder body (7). Inside the outer cylinder (8), an inner cylinder (9) detachably attached to the cylinder body (7).
Is inserted with its upper end (9a) arranged above the upper end of the outer cylinder (8). There is no particular limitation on the structure in which the inner cylinder (9) is detachable. For example, as shown in FIG. 1, the outer diameter of the upper end portion (9 a) of the inner cylindrical body is made larger than the inner diameter of the outer cylindrical body (8) so as to match or substantially match the inner diameter of the cylindrical main body (7). The periphery of (9a) can be locked to the cylinder body (7).

More specifically, two rows of upper and lower locking pieces (10a) (10b) are provided on the inner peripheral surface (7a) of the cylinder body (7) so as to project toward the inside of the cylinder body (7). These locking pieces (10
a) By inserting the peripheral edge of the upper end portion (9a) of the inner cylinder between (10b), the inner cylinder (9) can be attached to the cylinder body (7). More specifically, as shown in FIG. 2, the upper end (9) of the inner cylinder (9)
At least two protruding pieces (11) are provided on the peripheral edge of a), for example, radially, and a notch into which the protruding piece (11) can be inserted is formed in the upper locking piece (10b). Can be provided. By rotating the inner cylinder body (9) after disposing the protruding piece (11) in the notch, the protruding piece (11) is inserted between the locking pieces (10a) and (10b), and The body (9) is attached. On the other hand, the inner cylinder (9) can be taken out upward from the cylinder main body (7) by rotating the inner cylinder (9) in the reverse direction and aligning the protruding piece (11) with the notch.

The protruding pieces (11) and the notches can be provided alternately at predetermined intervals on each of the upper end portion (9a) of the inner cylinder and the locking pieces (10b). Further, a packing (12) can be interposed between the upper end portion (9a) of the inner cylinder and the locking piece (10a) located on the lower side in order to ensure watertightness. The drain trap for sink (30) of the invention of this application also has a connection part (7b) for connecting to a drain pipe at a lower part of the cylindrical body (7) at least on a side thereof.

For example, in the sink drain trap (30) of the invention of the present application exemplified above, the height (s) of the outer cylinder (8) is determined by the outer cylinder (8) and the inner cylinder (9). ) Is formed to prevent the odor from being discharged from the drain pipe connected to the connection part (7b). In addition, the water sealing portion formed by the outer cylindrical body (8) and the inner cylindrical body (9) is the same as the conventional water sealing portion (5) provided with the deodorant owan (5a) shown in FIGS. In comparison, the height (s) is reduced. Therefore, even if the height (h) of the net basket (4) is set to 80 mm, the total length (H) of the drain trap (30) can be reduced to 190 mm. Net basket (4) than the drain trap (20) shown in FIG.
, While miniaturization is further promoted. As described above, the sink drain trap (30) of the invention of the present application is small in size while ensuring a sufficient storage capacity for garbage, and enables a large storage space under the sink of the sink unit.

The drainage trap for a sink (30) according to the invention of the present application is provided with a dust receiver (13) having an opening smaller than that of the net basket (4), together with the net basket (4) and the inner cylinder. It can be provided between the upper end (9a) and the dust receiver (13) can be detachably attached to the cylinder body (7). By providing such a trash receptacle (13), the drainage performance of the net basket (4) can be sufficiently ensured, and fine trash that may flow out of the eyes of the net basket (4) is removed. The collection can be surely performed by the receiver (13). The specific aperture is not particularly limited. For example, the mesh (4) is preferably about φ3 to 5 in view of drainage performance and cleanability of the net basket (4). Regarding the trash receptacle (13), the aperture (u) should be φ1.0 to 2.0 in order to ensure the collection of trash.
The degree is preferred.

Since the dust receiver (13) is detachable from the cylinder body (7) as described above,
When dust accumulates on the surface, it can be removed and cleaned, resulting in excellent cleanability. The dust receiver (13) can be formed in a flat plate shape as shown in FIG. 1, or can be a basket body similar to the net basket (4). In the case of a flat plate shape, the cleaning property is generally good. In the case of a cage, the inner diameter of the cage can be made larger than the outer diameter of the net cage (4), and the cage can be a double cage with the net cage (4).

There is no particular limitation on the structure in which the dust receiver (13) is detachably attached to the cylinder body (7). For example, the outer diameter of the dust receiver (13) is matched or substantially equal to the inner diameter of the cylinder body (7). It is possible to adopt a structure in which the peripheral portion of the receiver (13) can be in close contact with the inner peripheral surface (7a) of the cylinder body (7). When the dust receiver (13) is a basket body, it can be locked to the upper end of the cylinder body (7) together with the net basket (4).
In addition, a small strap (1
3a) can be provided, and the dust receiver (13) can be easily removed.

Further, regarding the flat plate-shaped dust receiver (13) as shown in FIG. 1, there is a concern that the dust may accumulate on the surface, but this is solved by the following structure. That is, as shown in FIGS. 1 and 2, at least two supports (14), for example, radially provided on the upper surface of the upper end (9a) of the inner cylindrical body (9), and the dust receiver (13) is provided. Is disposed on the support (14), and the dust receiver (13) is supported from below by the support (14). With this structure, even if the dust receiver (13) has a flat plate shape, the strength can be sufficiently increased, and the dust can be collected stably.

Such a dust receiver (13) can be omitted as in the embodiment described later. FIG.
It is sectional drawing which showed another embodiment of the drainage trap for sinks of this invention. In the embodiment shown in FIG. 3, unlike the embodiment shown in FIG. 1, the axis (8a) of the outer cylinder (8) is shifted from the axis (7c) of the cylinder body (7). As described above, by shifting the axis (8a) of the outer cylinder (8) from the axis (7c) of the cylinder body (7), the axis (8a) of the outer cylinder (8) and the cylinder body (7) are shifted. 1), the lower width (W) of the drain trap (30) can be reduced as compared with the drain trap (30) shown in FIG. Become. Therefore, as shown in FIG. 4, the storage space of the storage section (2a) provided below the sink (3) of the sink unit (2) is further enlarged.

Further, by shifting the axis (8a) of the outer cylinder (8) from the axis (7c) of the cylinder body (7), FIG.
As shown in (2), the connection part (7b) to the drain pipe can be provided also at the bottom of the cylinder body (7) except for the outer cylinder (8). Providing the connection portion (7b) at the bottom of the cylinder body (7) is not very preferable for effectively utilizing the storage space below the sink of the sink unit. But
Depending on the structure of a building such as a house, the connection part (7b) may not be connected to the drain pipe at the lower side of the cylinder body (7). In particular, such a tendency is often observed at the time of renovation. The provision of the connection part (7b) to the drain pipe at the bottom of the cylinder body (7) except for the outer cylinder body (8) is a measure for solving this problem. Originally, as described above, the drainage trap for a sink (30) of the invention of this application has a smaller overall length (H) than the conventional drainage traps (1) and (20). Moreover, since the axis (8a) of the outer cylinder (8) is displaced from the axis (7c) of the cylinder main body (7), as shown in FIG. The drain pipe (6) connected to (7b) can be arranged near the back plate (2b) of the sink unit (2). The drain pipe (6) can also be bent and pulled out behind the sink unit (2). Therefore, the connection (7
The influence on the storage space of the sink unit storage part (2a) due to the provision of b) at the bottom of the cylinder body (7) can be slightly suppressed. The storage space of the storage part (2a) provided below the sink (3) of the sink unit (2) is at least larger than the storage space of the storage part (2a) shown in FIG.

Further, since the connecting portion (7b) is provided at two places on the lower side portion and the bottom portion of the cylindrical body (7), the connecting portion (7b) is not restricted by the structure of a building such as a house, and is used for the sink according to the invention of this application. It becomes possible to use a drain trap (30). There is no hindrance when renovating. In the case of the embodiment shown in FIG. 5, a cap (15) can be attached to the tip of the connecting portion (7b) to which the drain pipe is not connected, to prevent water leakage and the like.

Of course, the invention of this application is not limited by the above embodiments. Including the cylinder body,
It goes without saying that various forms are possible for the details of the structure of the outer cylinder, the inner cylinder, the mesh basket, the connection with the drain pipe, and the like.

[0024]

As described in detail above, according to the invention of this application, the drainage trap for a sink can be reduced in size while ensuring a sufficient storage capacity for garbage, so that the storage space under the sink of the sink unit can be widened. enable.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a sink drain trap of the present invention.

FIG. 2 is a perspective view showing an inner cylinder.

FIG. 3 is a cross-sectional view showing another embodiment of the sink drain trap of the present invention.

FIG. 4 is a sectional view showing the sink drain trap shown in FIG. 3 together with a sink unit and a sink;

FIG. 5 is a cross-sectional view showing still another embodiment of the sink drain trap of the present invention.

FIG. 6 is a cross-sectional view showing the sink drain trap shown in FIG. 5 together with a sink unit and a sink.

FIG. 7 is a sectional view showing a conventional drain trap together with a sink unit and a sink.

FIG. 8 is a sectional view showing a conventional improved drain trap together with a sink unit and a sink.

[Explanation of symbols]

 1, 20, 30 Drain trap 1a Main body 1b Connection part 2 Sink unit 2a Storage part 2b Back plate part 3 Sink 3a Drain port 4 Net basket 4a Strap 5 Water sealing part 5a Deodorant owan 6 Drain pipe 7 Tube main body 7a Inner peripheral part 7b Connection portion 8 Outer cylinder 9 Inner cylinder 9a Upper end 10a, 10b Locking piece 11 Protrusion 12 Packing 13 Dust receiver 13a Strap 14 Support 15 Cap

Claims (4)

[Claims] 1. A drain trap for a sink, comprising: a net basket which is detachable with respect to a cylinder main body at an upper portion of a bottomed cylinder main body; An inner cylinder body standing upright and detachable from the cylinder body is inserted into the outer cylinder body with its upper end disposed above the upper end of the outer cylinder body. A drainage trap for a sink, characterized in that a water sealing portion is formed, and a connection portion with a drainage pipe is provided at a lower portion of the cylindrical body at least on a side portion thereof. 2. The sink according to claim 1, wherein a dust receiver having an opening smaller than the opening of the net basket is detachably provided between the net basket and the upper end of the inner cylindrical body with respect to the cylinder main body. Drain trap. 3. The sink drain trap according to claim 1, wherein the axis of the outer cylinder is shifted from the axis of the cylinder body. 4. The drain trap for a sink according to claim 3, wherein a connection portion with the drain pipe is provided also at the bottom of the cylindrical body except the outer cylindrical body.