JP2001288799A - Western style flush toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sanitary Western style flush toilet having a rim which is hardly stained and rarely producing malodor or the like. SOLUTION: A Western style flush toilet main body 1 comprises a bowl part 3 and the open rim 8. The open rim 8 has a rim water passage 7 in its interior. A cleaning device 2 capable of discharging cleaning water is provided on a rear part of the toilet main body 1. Water discharged from the cleaning device 2 is used for cleaning the bowl part 3. An inner face 9 of an inside wall part 8b of the open rim 8 is flush with a bowl surface 3a of the bowl part 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a Western-style flush toilet.

[0002]

2. Description of the Related Art Conventionally, a Western-style flush toilet equipped with a Western-style toilet body having a bowl portion and a washing device provided behind the Western-style toilet body and having a washing tank or the like capable of discharging washing water is known. ing. In a general Western-style flushing toilet, a rim is formed on all upper edges of the bowl portion.

[0003] Of these rims, a so-called open rim is composed of an upper wall protruding substantially inward from an upper edge of a bowl portion, and an inner wall extending substantially vertically from an inner end of the upper wall. And a rim water passage for guiding cleaning water discharged from the cleaning device is formed therein. In this open rim, the washing water in the rim water passage is sprayed toward the bowl portion through the opening formed by the inner wall portion and the bowl portion.

[0004] Of these rims, a so-called closed rim includes an upper side wall protruding substantially inward from the upper edge of the bowl portion, and an inner side extending substantially vertically from the inner end of the upper side wall. It comprises a wall and a lower wall connecting the lower end of the inner wall to the bowl, and a similar rim water passage is formed inside. In this closed rim, a plurality of water outlets that open toward the bowl portion are provided in the lower side wall portion, and the washing water in the rim water passage is sprayed toward the bowl portion through the water outlets. .

[0005] Thus, in the conventional Western-style flushing toilet, the bowl portion is cleaned by the cleaning water discharged from the cleaning device.

[0006]

However, in the above-mentioned conventional Western-style flushing toilet, since the inner surface of the rim protrudes inward from the bowl surface of the bowl portion, dirt easily adheres to the rim, and consequently the odor. And so on, and unsanitary.

That is, in the open rim of a conventional Western-style flushing toilet, dirt due to urine splashes generated when the toilet is used or rebound when the stool is discharged is located on the back side of the upper side wall or the inner side wall. Easy to adhere to. Further, in the conventional closed rim of the Western-style flushing toilet, those dirt easily adheres to the inner rim water passage through the back side of the lower wall portion or the water outlet. The dirt adhering to these rims is located at a position where it is difficult for the cleaner to see, so it is difficult to check the state of adhesion and removal, and the cleaning tends to be incomplete. For this reason, these stains are likely to remain there and become a source of odors such as ammonia odor, giving the user discomfort and becoming unsanitary.

[0008] The present invention has been made in view of the above-mentioned conventional circumstances, and it is an object of the present invention to provide a western-style flushing toilet which is hard to cause dirt to adhere to a rim, and is unlikely to generate an unpleasant odor. Should be an issue to be addressed.

[0009]

According to a first aspect of the present invention, there is provided a Western-style flush toilet having a bowl portion, a rim formed on an upper edge of the bowl portion and having a rim water passage therein. A washing device capable of discharging washing water in the rim water passage, wherein the washing water discharged from the washing device is provided for washing the bowl portion through the rim water passage,
In the rim, at least at the front, an inner surface is flush with a pot surface of the bowl portion.

[0010] In the Western-style flushing toilet of the first invention, at least at the front, the inner surface of the rim is flush with the bowl surface of the bowl portion, so that dirt hardly adheres to the rim. For example, if the rim is an open rim, dirt hardly adheres to the rim water passage on the back side of the upper wall or the inner wall. Further, if the rim is a closed rim, it is difficult for dirty water to adhere to the inner rim water passage through the front side of the lower wall portion or the water outlet.

Therefore, the Western-style flushing toilet of the first invention is less likely to cause dirt to adhere to the rim, and is less likely to produce an unpleasant odor, so that it gives the user a pleasant feeling and is sanitary.

In the Western-style flushing toilet of the first invention, since the inner surface of the rim is flush with the bowl surface of the bowl portion, dirt is present at a position where it is easy for the person to clean to see. At the same time, it is easy to wipe off dirt with a single wipe during cleaning. Therefore, the cleaning can be sufficiently performed.

In the western-style flushing toilet of the first invention, the minimum operation and effect of the present invention can be obtained if the inner surface of the rim is flush with the bowl surface of the bowl at least at the front. This is because urine droplets generated when the toilet is used and dirt due to rebound when the stool is discharged are easily located in front. In this regard, it is desirable that the inner surface of the rim be flush with the bowl surface of the bowl portion at all upper edges of the bowl portion. With this configuration, it is possible to prevent the urine from being attached to the rim due to urine splashes generated during use of the toilet or rebound when the stool is discharged, at any position on the upper edge of the bowl portion, and the operation and effect of the present invention can be ensured. Can occur.

A Western-style flushing toilet according to a second aspect of the present invention provides a Western-style flushing toilet body having a bowl portion, a rim formed on an upper edge of the bowl portion and having a rim water passage therein, and a rim water passage. A washing device capable of discharging washing water, wherein the washing water discharged from the washing device is used for washing the bowl portion through the rim water passage. Is characterized in that the inner surface is located outside the bowl surface of the bowl portion.

In the Western-style flushing toilet of the second invention, since the inner surface of the rim is located outside the bowl surface of the bowl at least at the front, dirt hardly adheres to the rim. Therefore, the same effect as the Western-style flush toilet of the first invention can be obtained also in the Western-style flush toilet of the second invention.

In the western-style flushing toilet according to the second aspect of the present invention, since the inner surface of the rim is located outside the bowl surface of the bowl portion, dirt is present at a position where it is easy for the cleaner to see. Cleaning can be performed sufficiently. However, the ease of wiping at the time of cleaning is slightly inferior to the Western-style flushing toilet of the first invention.

In the western-style flushing toilet of the second invention, the minimum operation and effect of the present invention can be obtained if the inner surface of the rim is located outside the bowl surface of the bowl at least at the front. . In addition, it is desirable that the inner surface of the rim at all upper edges of the bowl portion is located outside the bowl surface of the bowl portion.

It is preferable that the Western-style toilet body according to the first and second aspects of the present invention has a step portion that forms a rim water passage at a boundary between the bowl portion and the rim. In such a case, the washing water discharged from the washing device does not immediately flow down to the bowl portion, but gradually flows down to the bowl portion while being swirled sufficiently in the rim water passage, and is discharged. It is because it can raise.

Further, in the Western-style flush toilet of the first and second inventions, the rim water passage can be opened all around between the inner surface of the rim and the bowl surface of the bowl portion. That is,
Open rim. In this case, the advantage of the manufacturing cost can be obtained.

On the other hand, in the Western-style flushing toilet of the first and second inventions, the rim water passage can be opened by a water outlet between the inner surface of the rim and the bowl surface of the bowl portion. That is, it is a closed rim. In this case, although the production cost is disadvantageous, the amount of water to be sprayed on the bowl portion can be easily adjusted by the spray port, so that the cleaning ability of the entire bowl portion can be improved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 to 3 embodying the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIG. 1, a Western-style flushing toilet according to Embodiment 1 comprises:
A distributor 2 which is a part of a cleaning device provided behind the Western-style toilet body 1 is provided. The illustration of the cleaning tank, the toilet seat, and the toilet lid which constitute a part of the cleaning device is omitted.

The Western-style toilet body 1 has a bowl 3 for receiving excrement, a trap 4 connected to the lower end of the bowl 3, and a pedestal 5 covering the bowl 3 and the trap 4. I have. At the rear of the Western-style toilet body 1, there is formed a mounting portion 6 on which a washing tank is mounted.
Inside, a distributor 2 made of resin is provided.

Open rims 8 are formed on all upper edges of the bowl portion 3. The open rim 8 includes an upper side wall portion 8 that projects substantially horizontally inward from the upper edge of the bowl portion 3.
a and an inner wall portion 8b extending in a substantially vertical direction from the inner end of the upper wall portion 8a. A step 8c is formed inside the open rim 8 so as to project substantially parallel to the upper side wall 8a, and a rim passage for guiding the washing water discharged from the distributor 2 by the step 8c is formed inside the open rim 8. A water channel 7 is formed.

As a characteristic configuration of this Western-style flushing toilet, the open rim 8
The inner surface of the inner wall portion 8b is the pot surface 3 of the bowl portion 3.
a. Thus, the rim water passage 7 is opened by the opening 7a on the entire circumference between the inner wall portion 8b and the pot surface 3a.

In the Western-style flushing toilet constructed as described above, the washing water supplied from the washing tank is discharged from the distributor 2 toward the rim water passage 7 and flows down to the bowl portion 3 while turning. 3 is discharged through the trap 4 while washing the pot surface 3a.

In this western-style flushing toilet, the inner surface of the inner wall portion 8b is flush with the pot surface 3a.
In use, dirt scattered to the rim water passage 7 on the back side of the upper wall portion 8a or the back side of the inner wall portion 8b is unlikely to adhere. Therefore, it does not become a source of odors such as ammonia odor, and does not give any discomfort to the user. It is also sanitary.

In addition, in this Western-style flushing toilet, dirt on the bowl portion 3 near the open rim 8 exists at a position where it is easy for a person to clean to see, and it is easy to check the adhesion and removal of dirt. Become. Also, the inner wall portion 8b
Is flush with the pot surface 3a, so that it is easy to wipe off the dirt with a single wipe during cleaning. Therefore, the cleaning can be sufficiently performed.

Further, since this Western-style flush toilet has a step 8c which forms a rim water passage 7 at the boundary between the bowl 3 and the open rim 8, the rinsing water does not flow down immediately, The water gradually flows down to the pot surface 3a of the bowl portion 3 while sufficiently turning by the water passage 8d. For this reason, compared with the case where there is no step part 8d, the cleaning effect of the whole bowl part 3 can be raised much more.

Therefore, the Western-style flush toilet is less likely to cause dirt to adhere to the open rim 8 and is less likely to generate an unusual odor, so that it gives the user a pleasant feeling and is sanitary. In addition, in this Western-style flush toilet, the advantage of the manufacturing cost can be obtained.

(Embodiment 2) In the Western-style flushing toilet according to Embodiment 2, as shown in FIG. 2, a closed rim 10 is formed on all upper edges of the bowl portion 3. The close rim 10 includes an upper wall portion 10a protruding inward substantially horizontally from an upper edge of the bowl portion 3, an inner wall portion 10b extending substantially vertically from an inner end of the upper wall portion 10a, The lower end of the wall 10b is connected to the bowl 3 and a lower wall 10c. The rim water passage 9 similar to that of the first embodiment is formed inside the closed rim 10 by these.

As a characteristic configuration of this Western-style flush toilet, a closed rim 1 is provided at all upper edges of the bowl portion 3.
The inner surface of the inner wall portion 10b at 0 is flush with the pot surface 3a of the bowl portion 3. A plurality of water outlets (not shown) that open downward are formed in the lower side wall portion 10c, and
Is opened by the opening 9a on the entire circumference between the inner wall portion 10b and the pot surface 3a through these water outlets. Other configurations are the same as in the first embodiment.

In the Western-style flushing toilet constructed as described above, the flush water in the rim water passage 9 is sprayed toward the bowl portion 3 through the water outlet and the opening 9a. And
Sewage does not easily adhere to the inner rim water passage 9 via the front side or the water outlet of the lower side wall portion 10c.

Further, in this Western-style flushing toilet, although the production cost is disadvantageous, since the amount of water to be sprayed on the bowl portion 3 is easily adjusted by the water outlet, the cleaning ability of the entire bowl portion 3 can be enhanced. . Other functions and effects are the same as those of the first embodiment.

(Embodiment 3) As shown in FIG. 3, the western-style flushing toilet of Embodiment 3 has an inner wall portion 18b of Embodiment 1.
Open rim 1 formed outside the Western-style flush toilet
8 is included in the Western-style toilet body 1. For this reason, the inner surface of the inner wall portion 18 b is located outside the pot surface 3 a of the bowl portion 3. Other configurations are the same as in the first embodiment.

In the Western-style flushing toilet constructed as described above, the inner surface of the inner wall portion 18b is formed by the pot surface 3a of the bowl portion 3.
Since it is located further outward, the ease of wiping at the time of cleaning is slightly inferior to the Western-style flushing toilet of Embodiments 1 and 2, but other operational effects can be similarly exhibited.

BEST MODE FOR CARRYING OUT THE INVENTION [Brief description of the drawings]

FIG. 1 is a cross-sectional view of a Western-style flushing toilet according to a first embodiment.

FIG. 2 is a sectional view of a Western-style flushing toilet according to a second embodiment.

FIG. 3 is an enlarged sectional view of a main part of a Western-style flushing toilet according to a third embodiment.

[Explanation of symbols]

 3 ... Bowl part 7, 9 ... Rim water passage 8, 10, 18 ... Rim 1 ... Western style toilet bowl 2 ... Cleaning device (distributor) 3a ... Bowl part pot surface 8c ... Step

Claims (7)

[Claims] 1. A Western-style toilet body having a bowl portion, a rim formed at an upper edge of the bowl portion and having a rim water passage therein, and a washing device capable of discharging washing water into the rim water passage. Prepared,
In the Western-style flushing toilet in which the washing water discharged from the washing device is used for washing the bowl portion through the rim water passage, the rim has an inner surface at least in front of the bowl of the bowl portion. A western-style flush toilet characterized by being flush with the surface. 2. The Western-style flush toilet according to claim 1, wherein the inner surface of the rim at all upper edges of the bowl portion is flush with the bowl surface of the bowl portion. 3. A Western-style toilet body having a bowl portion, a rim formed on an upper edge of the bowl portion and having a rim water passage therein, and a washing device capable of discharging washing water into the rim water passage. Prepared,
In the Western-style flushing toilet in which the washing water discharged from the washing device is used for washing the bowl portion through the rim water passage, the rim has an inner surface at least in front of the bowl of the bowl portion. A Western-style flush toilet characterized by being located outside the surface. 4. The western-style flush toilet according to claim 3, wherein the inner surface of the rim is located outside the bowl surface of the bowl portion at all upper edges of the bowl portion. 5. The Western-style flushing toilet according to claim 1, wherein the Western-style toilet body has a step portion that forms a rim water passage at a boundary between the bowl portion and the rim. 6. The western-style flush toilet according to claim 5, wherein the rim water passage is open all around between the inner surface of the rim and the bowl surface of the bowl portion. 7. The Western-style flushing toilet according to claim 5, wherein the rim water passage is opened by a water outlet between an inner surface of the rim and a bowl surface of the bowl portion.