JPH09137493A - Western style toilet stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wash the water delivery member or the rear face of a water delivery type toilet seat with water, in a western style toilet stool without water passages at the rim. SOLUTION: When a washing valve is opened by a lever control or the like in the state that a water delivery member 16 is laid down, washing water reserved in a washing water tank flows in the water passage 20 in the water delivery member 16 through a water supply way and flows out from a number of water delivery openings 22 into the toilet bowl 14. When a pump is driven in the state that the water delivery member 16 is erected, water flows out from washing opening 34 and flows down along the rear face of the water delivery member 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a western-style toilet having a western-style toilet body and a toilet seat, and more particularly to a western-style toilet having no rim water passage.

[0002]

2. Description of the Related Art A conventional Western-style toilet has a toilet seat and a toilet lid that are openably and closably attached to a toilet body, and a rim water passage is provided along the upper edge of the bowl. Cleaning water is supplied from the rim water passage to the inner surface of the pot.

In such a conventional Western-style toilet bowl, it is difficult to clean the lower surface of the rim water passage.

Therefore, the rim water passage is omitted from the main body of the Western-style toilet, and instead, a water passage that communicates with the flush water supply source is connected to the toilet seat, and a passage that communicates with the water passage and opens toward the inside of the toilet bowl. A western style toilet provided with a plurality of fountain holes for ejecting toilet flush water guided to the water passage into the toilet bowl has been proposed (Japanese Patent Laid-Open No. 7-158144).

According to this Western-style toilet, since there is no rim water passage in the body of the toilet, dirt does not accumulate on the back side of the rim as in the conventional case. Further, stains on the back surface of the toilet seat can be easily cleaned and removed by raising the toilet seat as in the conventional case.

Furthermore, by omitting the rim water passage, the moldability of the toilet body can be improved and the weight of the toilet body can be reduced.

In addition, the toilet seat can be molded of synthetic resin, the shape and orientation of the fountain hole can be freely set, and the fountain hole can be formed with high precision, so that the toilet bowl can be properly cleaned.

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the Western-style toilet disclosed in Japanese Patent No. 8144, dirt on the back surface of the toilet seat is removed only by cleaning.

An object of the present invention is to make it possible to wash away the dirt on the back surface of the toilet seat or the water discharge member with water in a Western-style toilet bowl of the type having no rim water passage.

[0010]

A Western-style toilet according to claim 1
A Western-style toilet body having a bowl, a posture in which the bowl is laid down on the periphery of the bowl, and a posture in which the bowl stands upright behind the bowl, and is rotatable and in a lying state. A toilet seat or a water discharge member having a water discharge outlet for discharging water toward the inner surface of the bowl portion, wherein the toilet seat or the water discharge member is a western style toilet bowl in which a rim water passage is not provided at an upper edge of the bowl portion of the western style toilet body. Is provided with a back surface cleaning mechanism that allows water to flow out from the back surface of the toilet seat or the water discharge member along the back surface when the user stands upright.

In such a Western-style toilet, water can be made to flow along the back surface of the standing toilet seat or the water discharge member to wash away the dirt attached to the back surface. Further, if water is made to flow on the back surface of the toilet seat or the water discharge member to form a water film, it becomes difficult for dirt to adhere.

It should be noted that the amount of water used for cleaning the back surface of the toilet seat or the water discharge member may be smaller than the amount of water used for cleaning the bowl.

In the present invention, it is preferable that when the toilet seat or the water discharge member is erected, water is automatically supplied to the back surface of the toilet seat or the water discharge member.

In the present invention, it is preferable that a convex strip is provided on the side edge of the back surface of the toilet seat or the water discharge member so that the water flowing along the back surface does not go around the side surface of the toilet seat or the water discharge member.

[0015]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1, a Western-style toilet bowl 10 includes a Western-style toilet bowl body 12 having a bowl portion 14 and a water discharge member 16 attached to the toilet bowl body 12 by a hinge so as to be vertically rotatable.
And a toilet seat 18.

A rubber piece 19 is provided on the lower surface of the toilet seat 18 and is in contact with the upper surface of the water discharge member 16.

The toilet body 12 is made of pottery, and in this example, a rim portion is not provided at the upper end portion like the toilet body of Japanese Patent Laid-Open No. 7-158144.

The water discharge member 16 is made of synthetic resin, and the inside thereof is an annular water passage 20 extending continuously in the circumferential direction along the upper end of the bowl portion 14. On the lower surface (back surface) of the water discharge member 16, a large number of water discharge ports 22 communicating with the water passage 20 and opening downward inside the peripheral wall portion of the bowl portion 14, that is, opening toward the inside of the bowl portion 14 are formed. Has been done.
Although the water discharge port 22 has a small hole shape, it may be provided in a slit shape.

The water passage 20 is connected to a wash water tank 26 via a water supply passage 24 as shown in FIG. 2 (A), and a connection portion between the water supply passage 24 and the wash water tank 26 is connected. Is a cleaning valve 2 for supplying / stopping cleaning water
8 are provided.

A hinge 30 is provided between the water supply passage 24 and the water passage 20.
It communicates through a water passage hole provided inside.

A safety mechanism is incorporated in the water passage hole in the hinge, and the water supply passage 24 is connected to the water passage 20 of the water discharge member 16 only when the water discharge member 16 is laid down.

The lower surface of the water discharge member 16 is provided with a cleaning port 34 for flushing out the cleaning water on the back surface thereof when the water discharge member 16 stands up. Inside the water discharge member 16, there is provided a pipe 36 having one end connected to the cleaning port 34 and the rear end protruding outside the water discharge member 16. The pipe 36 includes a bellows-shaped hose 38, a pump 40, and a pipe 4.
2 through the bottom of the wash water tank 26.

A rubber piece 16a is attached to the lower surface of the water discharge member 16.

The inner surface and the outer edge of the lower surface of the water discharge member 16 are provided with ridges 16t. Also, this water discharge member 1
6 is provided with a guide piece 16g for guiding the water flowing down the back surface of the standing water discharge member 16 to the bowl portion 14.

In the toilet bowl of this embodiment, when the flush valve 28 is opened by operating the lever while the water discharge member 16 is lying down, the flush water stored in the flush water tank 26 passes through the water supply passage 24. Then, the water flows into the water passage 20 in the water discharge member 16, and flows out into the bowl portion 14 through a large number of water discharge ports 22. As a result, toilet cleaning is performed.

When the pump 40 is operated while the water discharge member 16 is in the upright state, water is discharged from the cleaning port 34 and flows down along the back surface of the water discharge member 16, whereby the back surface of the water discharge member 16 is discharged. Are washed. The lower end of the back surface of the water discharge member 16 is located in front of the rear edge of the bowl portion 14, and the water that has traveled down the back surface of the water discharge member 16 falls into the bowl portion 14. The cleaning port 34 is shown in FIG.
As shown in (B), it is provided obliquely with respect to the back surface of the water discharge member 16 and is configured such that water flows out from the cleaning port 34 along the back surface of the water discharge member 16 which has risen.

As described above, by washing the back surface of the water discharge member 16 with the water flowing out from the cleaning port 34, the dirt on the back surface can be removed. Further, by forming a water film on the back surface, the adhesion of dirt is reduced.

The water discharge member 16 is provided with the ridges 16t on the inner and outer edges of the lower surface thereof, so that the water flowing down the back surface does not go around to the side surface of the water discharge member 16. Further, the water that has traveled down the back surface of the water discharge member 16 smoothly falls into the bowl portion 14 by the guide piece 16g.

In the above embodiment, the pump 40
Although water is supplied to the cleaning port 34 by means of the cleaning water tank 26, if the water level in the cleaning water tank 26 is sufficiently high, an opening / closing valve is provided instead of the pump 40, and the opening / closing valve is opened / closed to supply water to the cleaning port 34. The water supply may be stopped.

In the above embodiment, the water is supplied to the cleaning port 34 via the dedicated water supply pipe 36. However, as shown in FIG. 3, the pot cleaning water is supplied to the cleaning water supply channel and the cleaning port 34. You may make it share a waterway.

In FIG. 3, the water passage 20 in the water discharge member 16A is divided into two upper and lower water passages 20a and 20b by a partition plate 44.
Is divided into A washing water tank 26 is provided in the upper water passage 20a via a bellows-shaped flexible hose 46 and a washing valve 28.
The pot cleaning water can be supplied from. Further, a pipe 48 for introducing the discharge water of the pump 40 is connected to the flexible hose 46.

The upper and lower two water channels 20a and 20b are used for the water discharge member 1
The communication port 50 is provided at the tip of 6A.

By opening the washing valve 28 with the water discharge member 16A lying down, the water in the wash water tank 26 can be discharged from the water discharge member 16A into the bowl 14. At this time, a large amount of water is supplied to the upper water channel 20a, the water circulates through the communication port 50, and the lower water channel 20b.
It flows in and flows out from the water outlet 22.

By operating the pump 40 with the water discharge member 16A standing upright, water can flow out from the cleaning port 34 to the back surface of the water discharge member 16A, and the back surface can be cleaned.

In the Western-style toilets 10 and 10A, the water discharge members 16 and 16A and the toilet seat 18 can be turned upside down and rotated separately, and the weight of the toilet seat 18 is small. Therefore, the toilet seat 18 can be swung up and down lightly. Further, only the toilet seat 18 can be erected, and the water discharge members 16 and 16A can be kept lying down. In this case, water does not flow down from the water discharge members 16 and 16A to the upper surface of the Western-style toilet body 12.

FIG. 4 is a perspective view and a sectional view showing another embodiment. In this embodiment, the water discharge member 16,
16A is not provided, and the toilet seat 18A is lying directly on the upper surface of the bowl portion 14. This toilet seat 18A has a bowl 1
A water passage 20A and a water outlet 22A are provided in order to drain the water to the nozzle 4. 18a is a rubber piece, and 54 is a toilet lid.

Protrusions 18t are provided on the inner and outer edges of the lower surface of the toilet seat 18A. Further, the toilet seat 18A is provided with a guide piece 18g for guiding the water flowing down the back surface of the standing toilet seat 18A and flowing to the bowl portion 14.

Furthermore, a cleaning port 34A for cleaning the back surface is provided on the lower surface of the toilet seat 18A. A water supply pipe 36 communicating with the cleaning port 34A is provided in the toilet seat 18A, but the water supply system to the cleaning port 34A may be that shown in FIG.

Also in the western-style toilet 10B of FIG. 4, the toilet seat 18A is erected, and water can be discharged from the cleaning port 34A to the back surface of the toilet seat 18A to clean the back surface. This toilet seat 1
Also in 8A, the protrusions 18t are provided on the inner edge and the outer edge of the lower surface, so that the water flowing down the back surface does not go around to the side surface of the toilet seat 18A. Further, the water that has traveled down the back surface of the toilet seat 18A smoothly falls into the bowl portion 14.

In the present invention, a sensor for detecting the rising and falling of the toilet seat or the water discharge member is provided, and as shown in FIG.
When the water discharge member or the water discharge type toilet seat stands up, water may be allowed to flow out from the cleaning port for a predetermined time (for example, 2 seconds). Further, as shown in the figure, when the water discharge member or the toilet seat is tilted down, washing water may be supplied to the bowl portion for a predetermined time (for example, 5 seconds).

[0042]

As described above, in the Western-style toilet of the present invention, dirt on the back surface of the water discharge member or the water discharge type toilet seat can be washed off with water, and a water film is formed on the back surface of the water discharge member or the water discharge type toilet seat. It is also possible to prevent the adherence of.

[Brief description of the drawings]

FIG. 1 is a perspective view and a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a perspective view and a sectional view showing another embodiment of the present invention.

FIG. 4 is a plan view showing still another embodiment of the present invention.

FIG. 5 is a flowchart showing an automatic cleaning method.

[Explanation of symbols]

 10,10A, 10B Western-style toilet 12 Western-style toilet main body 14 Bowl 16,16A Water discharge member 18,18A Toilet seat 22,22A Water outlet 22a, 22b Water channel 26 Wash water tank 28 Wash valve 34,34A Wash mouth 36 Pipe 38 Flexible hose 40 Pump

Claims (4)

[Claims] 1. A Western-style toilet body having a bowl portion, which is rotatable and laid down so that it can assume a posture in which it falls on the peripheral edge of the bowl portion and a posture in which it stands upright behind the bowl portion. A toilet seat or a water discharge member having a water outlet that discharges water toward the inner surface of the bowl when in a state, and a Western-style toilet without a rim water passage provided at the upper edge of the bowl of the Western-style toilet body, A western-style toilet bowl provided with a back surface cleaning mechanism for allowing water to flow out from the back surface of the toilet seat or the water discharge member along the back surface when the toilet seat or the water discharge member is in an upright posture. 2. The back surface cleaning mechanism according to claim 1, wherein the back surface cleaning mechanism supplies water to the upper back surface of the toilet seat or the water discharge member in an upright state at a smaller flow rate than when cleaning the bowl. A Western-style toilet bowl featuring. 3. The Western-style toilet according to claim 1, wherein the back surface cleaning mechanism is operated for a predetermined time when the lying toilet seat or the water discharge member is erected. 4. The western-style toilet bowl according to claim 1, wherein a ridge is provided along an edge of a lower surface of the toilet seat or the water discharge member.