JP2940428B2 - Toilet bowl - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet having a rim water passage, and more particularly to a toilet suitable as a vehicle-mounted toilet installed in a train or the like.

[0002]

2. Description of the Related Art FIG. 5 is a plan view of a conventional on-board toilet, and FIGS. 6 and 7 are VI-VI line and VII-VII of FIGS.
FIG. 4 is a cross-sectional view taken along a line, and FIG. 4 is a perspective view of a portion IV in FIG.

A toilet bowl 2 is provided on a pedestal 1. A rim water passage 3 is provided around the upper part of the toilet bowl 2, so that washing water can be supplied into the toilet bowl 2 from the spray hole 4. A drain port 5 opens downward at the bottom of the toilet bowl 2.

[0004] A water supply receiving chamber 6 is provided at the rear of the toilet bowl 2, and flush water is introduced from a water supply port 7 on the rear surface of the toilet bowl.

[0005] In the rim water passage 3 at the rear of the toilet, a water guide chamber 9 is separated from the rim water passage 3 by a pair of partition walls 8 extending substantially in the front-rear direction of the toilet. This partition 8
Is connected to the side wall 10 of the water supply receiving chamber 6, and the water supply receiving chamber 6 and the water introduction chamber 9 communicate with each other.

The water in the water guide chamber 9 is supplied to the rim water passage 3 through an opening 11 provided in the partition wall 8.

The reason why the partition wall 8 is provided to form the water guide chamber 9 and the opening 11 is provided in the partition wall 8 is that the water flows out from the water guide chamber 9 into the rim water passage 3 with a vigorous flow. By doing so, the water is distributed to the inside of the rim water passage 3 on the front side of the toilet.

That is, when a large amount of flush water is supplied from a low tank or a flush valve as in a general Western style toilet, the water guide chamber 9 is not separated by the partition wall 8 having the opening 11 as described above. However, the washing water is rim waterway 3
To the front of.

However, in the case of a toilet mounted on a vehicle, water in a storage tank is slowly introduced by a pump. (For example, 9
One liter of water is introduced over about 20 seconds. Under such a slow water supply speed, the speed of water flowing into the rim waterway is low, so that water does not turn to the front of the rim waterway. Then, a partition wall 8 is erected to form a water guide chamber 9, water is once received in the water guide chamber 9, and is rushed to the side from the small opening 11 to flow water to the front of the rim water passage 3. We are trying to get them around.

[0010]

In such a conventional toilet bowl, since flush water is not supplied to the lower side of the water guiding chamber 9, the inner wall surface of the toilet bowl 2 below the water guiding chamber 9 becomes dirty. Adheres and remains.

In order to solve such a problem, it is conceivable to provide a downward outlet 12 shown by a two-dot chain line in FIG. 2, a large amount of washing water flows out, and the amount of water supplied to the rim water passage 3 decreases.

If the opening area of the opening 12 is reduced,
The amount of outflow from the opening 12 is narrowed, and the amount of water supplied to the rim water passage 3 increases, but there is a problem that the entire inner wall surface of the toilet bowl 2 below the water guide chamber 9 cannot be washed.

[0013] For this reason, the conventional on-board toilet has a problem that the toilet bowl wall below the water guide chamber is easily stained.

[0014] The present invention solves the above-mentioned problems and provides a toilet bowl in which washing water can be flown also on the wall surface of the toilet bowl below the water guide chamber to prevent dirt from adhering to the wall surface of the toilet bowl below the water guide chamber. It is intended to provide.

[0015]

In the toilet of the present invention, a rim water passage is provided around the upper edge of the toilet bowl, and the rim water passage is partitioned by a pair of partition walls at the rear of the toilet bowl. In this case, a water guide chamber is provided, the water guide chamber communicates with a water supply receiving chamber on the rear side of the toilet, and the partition wall has an opening through which water in the water guide chamber flows out to the rim water passage. ,
A rim water passage is formed below the road floor surface of the water guide chamber, and a spray hole is provided in the rim water passage below the water guide chamber.

A long hole along the inner surface of the toilet bowl is preferably used as the water injection hole below the water guide chamber. However, a large number of round holes may be opened.

[0017]

The water flowing from the water supply receiving chamber into the water guiding chamber flows out of the opening of the partition wall that partitions the water guiding chamber from the rim water channel into the rim water channel, and spreads to the front of the rim water channel.
Part of the water that has flowed into the rim water channel also flows into the rim water channel below the water channel, and flows out into the toilet bowl from a water spray hole provided below the water channel. As a result, the attachment of dirt to the inner wall surface of the toilet bowl below the water guide chamber is prevented.

Since the water injection hole below the water guide chamber is provided in the rim water passage and is not provided on the floor surface of the water guide chamber, flush water flows out only from the water guide chamber to the rim water passage.
That is, the washing water in the water guide chamber does not flow out directly and in large quantities from the spray hole below the water guide chamber.

By making this water injection hole a long hole, blockage by foreign substances is prevented. By making the water injection hole a long hole along the inner surface of the toilet bowl, it is possible to apply washing water to a wide area of the bowl surface.

[0020]

Embodiments will be described below with reference to the drawings. 1 is a longitudinal sectional view of a Western-style toilet according to the embodiment, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is II in FIG.
It is a sectional perspective view of the I part.

In the present embodiment, the subfloor 1
3 is lifted off the subgrade surface 3a of the rim waterway 3,
3 and the rim waterway 3 between the road surface 3a of the rim waterway 3
Is provided. The rim water passage 14 communicates with the rim water passage 3. A water hole 15 is formed on the subgrade surface of the rim water passage 14.
Is provided. The water injection hole 15 is a long hole extending along the inner surface of the toilet bowl 2. Other configurations are the same as those of the above-described conventional example.

In the thus constructed Western-style toilet bowl of this embodiment, the water flowing into the water guide chamber 9 from the water supply receiving chamber 6 flows through the opening 11 of the partition wall 8 that partitions the water guide chamber 9 from the rim water passage 3. The water quickly flows into the rim waterway 3 and reaches the front of the rim waterway 3. Part of the water that has flowed into the rim water passage 3 also flows into the rim water passage 14 below the water conveyance chamber 9, and is provided on the rim water passage floor below the road floor 13 of the water conveyance chamber 9. The water flows out of the flush hole 15 into the toilet bowl 2. As a result, adhesion of dirt to the inner wall surface of the toilet bowl 2 below the water guide chamber 9 is prevented.

The water injection hole 15 is provided on the subgrade surface of the rim water passage 14 and is not provided on the subgrade surface 13 of the water conveyance chamber 9. Wash water flows out. That is, the washing water in the water guide chamber 9 does not flow out directly and in large quantities from the spray hole 15. The water injection hole 15 is a long hole and has a large opening area, so that there is no possibility that the foreign matter is clogged. Further, since the water injection hole 15 extends along the inner wall surface of the toilet bowl 2, the toilet bowl 2 below the water guide chamber 9 is formed.
Cleaning water can be supplied to a wide area of the inner wall surface of the vehicle.

Although the above embodiment relates to a Western style toilet, the present invention can be applied to a Japanese style toilet with a rim water passage.

In the above-described embodiment, the water injection hole 15 formed of a single long hole is provided, but the rim water passage 14 below the water introduction chamber 9 is provided.
May be provided with a plurality of water holes.

[0026]

As described above, according to the toilet of the present invention, it is possible to prevent dirt from adhering to the inner surface of the toilet bowl below the water guide chamber.

According to the toilet of the second aspect, the washing water is poured over a wide area of the inner surface of the toilet bowl below the water guide chamber, and the adhesion of dirt can be sufficiently prevented. In addition, blockage of the spray hole below the water guide chamber by foreign matter is also prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a Western style toilet according to an embodiment.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a sectional perspective view of a portion III in FIG. 1;

FIG. 4 is a cross-sectional perspective view of a main part of a conventional Western-style toilet bowl.

FIG. 5 is a plan view of a conventional Western style toilet.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

 2 toilet bowl 3,14 rim water passage 4,15 water injection hole 6 water supply receiving room 7 water supply port 8 partition wall 9 water conduction room 11 opening

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E03D 11/02

Claims (2)

(57) [Claims] A rim water passage is provided around the upper edge of the toilet bowl, and a water guide chamber is provided at the rear of the toilet by dividing the rim water passage with a pair of partition walls. The toilet communicates with a water supply receiving chamber at a rear part of the toilet, and the partition wall has an opening through which water in the water guide chamber flows out to the rim water passage. A toilet having a rim water passage formed on a side thereof, and a spray hole provided in a rim water passage below the water guide chamber. 2. The toilet according to claim 1, wherein the water hole on the lower side of the water guide chamber is a long hole extending along the inner surface of the toilet bowl.