JP2000008461A - Flush stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen the quantity of water for discharging impounded water which seals a drain port provided in the bottom of a bowl. SOLUTION: An end opening part 5 of a drain pipe part 4 is made to project into a sewage dropper 6. The sewage dropper 6 is provided with a discharge port 7 and thereby made to communicate with a sewer pipe. In the sewage dropper 6 a trap 8 is supported pivotally so that the end opening part 5 can be closed or opened-closed selectively. The trap 8 is formed in a bent shape so that the upper-end opening part 8a of the trap 8 be opened toward the upper side of the sewage dropper 6 and the lower-end opening part 8b thereof be connected to the end opening part 5 with sealing properties maintained. It is possible to impound water in a stool 1 at the time when the end opening part 5 is closed by the trap 8 and to discharge the impounded water 23 in the stool 1 when the end opening part 5 is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet.

[0002]

2. Description of the Related Art Conventionally, various types of flush toilets have been used in toilet rooms. For example, siphon type, siphon jet type, and flush type flush toilets are typical. Also in the toilet, as shown in FIG. 5, a drain 8 communicating with the bowl 2 is bent in a substantially inverted U-shape to form a trap 8 'in order to prevent odor from flowing from the sewer pipe. ′, The drain port 3 at the bottom of the bowl 2 is sealed with water.
However, in the flush toilet having such a trap 8 ', there is a problem that a large amount of water equal to or larger than the amount of the pooled water 23 must be discharged when the pooled water 23 is discharged. FIG. 5 shows a siphon-jet type flush toilet.

[0003] In order to solve such a problem, an on-off valve type flush toilet as disclosed in JP-A-7-310355 has been proposed. As shown in FIG. 6, in this method, a drain pipe 17 is connected from the drain port 3 at the bottom of the bowl 2 to a drain pipe 18 at the rear of the toilet, and a valve 20 for opening and closing the drain pipe 17 is provided at a terminal opening 19 of the drain pipe 17. Valve device 2 having
1 is disposed and closed by the valve 20 to collect the pooled water 23 in the bowl 2. By opening the valve 20, the bowl 2 is washed and drained from the drain pipe section 17. However, in this method, it is necessary to separately provide the overflow pipe 22 for power failure countermeasures. As a result, the number of parts increases,
There is a problem that an extra space for providing 2 is provided in the toilet.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and it is a flush toilet having a trap for sealing a drain port at the bottom of a bowl of a toilet bowl. It is an object of the present invention to provide a flush toilet that does not require a large amount of water when performing the flushing operation, and that does not require a separate overflow pipe for power failure measures even though the flush toilet is an open / close valve type flush toilet.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and achieve the object of the present invention, a drain pipe section having a terminal end opening 5 horizontally behind a toilet 1 from a drain port 3 provided at the bottom of a bowl 2. A flush toilet provided with a toilet 4, the terminal opening 5 protrudes into a sewage inlet 6 provided behind the toilet 1, and a discharge port 7 is provided at a lower end of the sewage inlet 6, and the outlet 7 is located below the toilet 1. And a trap 8 in the sewage inlet 6.
Is trapped so that the closing and opening of the terminal opening 5 can be selectively performed. When the terminal opening 5 is closed, the trap 8 is opened upward at the upper end opening 8 a of the trap 8 above the sewage inlet 6. The lower end opening 8b has a bent shape so as to be connected to the terminal opening 5 while maintaining a sealing property. When the terminal opening 5 is closed by the trap 8, water is poured into the toilet bowl 1. When the reservoir and the terminal opening 5 are opened, the toilet 1
The accumulated water 23 in the inside can be discharged. In this way, the terminal opening 5 of the drain pipe 4 communicating with the drain 3 provided on the bottom of the bowl 2 is projected to the sewage inlet 6, and the outlet 7 is provided at the lower end of the sewage inlet 6. The motor 10 has a configuration in which the trap 8 is pivotally supported in the sewage inlet 6 so as to be able to selectively close and open the terminal opening 5 in communication with a sewer pipe arranged below the toilet 1. This realizes an on-off valve type flush toilet by means of the trap 8 which rotates. That is, when the trap 8 closes the terminal opening 5 of the drain pipe section 4, the upper end opening 8a of the trap 8 opens upward of the sewage inlet 6 and the lower end opening 8b thereof closes the terminal opening. Since the terminal 5 is bent so as to be connected to the portion 5 while maintaining the sealing property, when the terminal opening 5 is closed by the trap 8, a trap formed by bending a conventional drainage channel into a substantially inverted U-shape is used. The water outlet 3 at the bottom of the bowl 2 is sealed with water in the same manner as the formed flush toilet,
It is possible to prevent the odor from flowing from the sewer pipe, and in a state where the trap 8 pivotally supported in the sewage inlet 6 is rotated to open the terminal opening 5 of the drain pipe part 4, Lower end opening 8b of trap 8 having closed end opening 5
Are separated from the terminal opening 5 and can be drained from the terminal opening 5 to the sewer pipe arranged below the toilet 1 from the lower end opening 8b of the sewage inlet 6. As described above, in the above-described configuration, when the trap 8 opens the terminal opening 5 of the drain pipe 4, the discharged water is discharged from the surface of the pooled water 23 in the bowl 2 and the end of the drain opening 4 of the drain pipe 4. Since the water flows due to the water level difference, compared with a flush toilet in which a trap which is continuously bent in a substantially inverted U-shape is formed integrally with a conventional drain pipe portion, the reservoir water 23 for sealing the drain port 3 at the bottom of the bowl 2 is provided. It is possible to discharge the retaining water 23 mixed with the filth and the like after the toilet 1 is used simply by discharging only the wastewater.

When the trap 8 closes the end opening 5 of the drain pipe 4, the trap 8 functions as a release valve having an open upper end 8a, so that a closed valve device is provided. In comparison with the first embodiment, a large force is not required to close the terminal opening 5.

When the trap 8 closes the terminal opening 5 of the drain pipe 4, the trap 8 connected to the terminal opening 5 is bent upward substantially in an L-shape, and its upper end opening 8a is closed. Since it is opened upward of the sewage input device 6, the overflowing pool water 23 can escape from the upper end opening 8a.

[0008]

1 to 6 show an embodiment of the present invention.
It will be described based on.

FIG. 1 is a side sectional view and a rear sectional view showing an embodiment of a flush toilet according to the present invention. As shown in FIG. 1, a bowl 2 is disposed in front of the toilet 1, and a rim portion 9 is provided along the entire upper edge of the bowl 2, and a rim portion 9 is provided inside the rim portion 2. A channel for washing water is formed.

A drain port 3 is provided at the bottom of the bowl 2, and a drain pipe section 4 having a terminal opening 5 extends horizontally from the drain port 3 to the rear of the toilet 1. At the back of the toilet 1, a box-shaped sewage input device 6 is provided, and a front opening 6b is provided in a wall on the front side of the toilet 1, that is, a front wall 6a, and the drain pipe 4 is connected to a front opening. 6b, and the terminal opening 5 of the drain pipe section 4 is inserted from the front wall 6a of the sewage inlet 6 to the sewage inlet 6
It is projected inside. An outlet 7 is provided below the sewage inlet 6 and communicates with a sewer pipe (not shown) arranged below the toilet 1.

A trap 8 which is a substantially L-shaped bent pipe is accommodated in the sewage inlet 6. The upper end of the lower end opening 8b of the trap 8 is connected to the end 11c of the vertical axis 11a of the arm 11 bent at a right angle, and
The end 11 d of the arm 1 b is connected to a rotating part (not shown) of the motor 10 attached to the outside of the sewage inlet 6, so that the trap 8 rotates in a pendulum around the horizontal axis 11 b of the arm 11 as a rotating axis. It is free to move.

The trap 8 configured in the sewage injecting device 6 as described above has a rotating portion of the motor 10 that rotates forward.
The trap 8 rotates in the direction of the arrow a, and the lower end opening 8 a separates from the terminal opening 5 of the drain pipe 4 to open the terminal opening 5, and drains the pool water 23 sealed in the toilet 1. The trap 8 rotates in the direction of the arrow b by discharging and further rotating the rotating part of the motor 10, and the lower end opening 8 a closes the terminal end opening 5 of the drain pipe 4. And
When the lower end opening 8b of the trap 8 closes the terminal opening 5, packing is attached to either the lower end opening 8b or the end face of the terminal opening 5 in order to maintain watertightness.
In FIG. 1, a packing 12 is attached to the end face of the lower end opening 8b of the trap 8. The lower end opening 8 of the trap 8
In the state where b closes the end opening 5 of the drain pipe section 4, the upper end opening 8a of the trap 8 is at least a position higher than the water surface position A of the pool water 23 for sealing the drain port 3 at the bottom of the bowl 2. It is designed in advance so that it comes in.

Next, the operation of the flush toilet of this embodiment will be described with reference to FIGS.

FIG. 2 shows a state in which the end opening 5 of the drain pipe section 4 is closed by the trap 8 and the drain port 3 at the bottom of the bowl 2 is sealed with water. As shown in FIG. 2, the water surface position B of the pool water 23 that seals the drain port 3 at the bottom of the bowl 2 has the same height as the position C of the end surface of the upper end opening 8 a of the trap 8.

FIG. 3 shows a depressing of a cleaning button (not shown),
This shows a state in which the pool water 23 that has sealed the drain port 3 at the bottom of the bowl 2 is drained, and the inner surface of the bowl 2 is being washed. When the wash button is pressed, the trap 8 is
To rotate counterclockwise to open the lower end opening 8b of the trap 8
The end opening 5 of the drain pipe section 4 closed by the opening is opened, and the pool water 23 that seals the drain port 3 at the bottom of the bowl 2 is closed.
Is discharged into the sewage inlet 6. And sewage input device 6
The accumulated water 23 discharged into the inside is discharged from a discharge port 7 provided at the lower end of the sewage input device 6 to a sewer pipe communicating therewith.

As a result of the opening operation of the terminal opening 5 by the rotation of the trap 8 as described above, the accumulated water 23 discharged is separated from the surface of the accumulated water 23 in the bowl 2 and the water level of the terminal opening 5 of the drain pipe 4. Is discharged into the sewage inlet 6, so that only the pool water 23 required for water sealing of the drain port 3 at the bottom of the bowl 2 is used to discharge the pool water 23 mixed with waste after use of the toilet 1. Can be. In this figure, in order to wash dirt and the like adhered to the inner surface of the bowl 2, the washing water 24 flows out from a rim portion 9 provided along the upper edge of the bowl 2 on the entire periphery thereof. The amount of water for cleaning the inner surface of the bowl 2 may be small. FIG. 4 shows a state in which the trap 8 opens the terminal opening 5 of the drain pipe 4 for a certain period of time, and then turns clockwise in FIG. 4 to close the terminal opening 5 of the drain pipe 4 again. It is. Subsequently, water for sealing the drain port 3 at the bottom of the bowl 2 flows from the rim portion 9, and the drain port 3 at the bottom of the bowl 2 is filled until the water surface reaches the water surface position B.

In this manner, the terminal opening 5 of the drain pipe 4 communicating with the drain 3 provided at the bottom of the bowl 2
And a discharge port 7 is provided at the lower end of the sewage inlet 6, the outlet 7 communicates with a sewer pipe disposed below the toilet 1, and a trap 8 is closed in the sewage inlet 6 by closing the terminal opening 5. By adopting a structure that can be selectively opened and closed,
The open / close valve type flush toilet can be realized by the trap 8 rotated by the motor 10. That is, trap 8
When the end opening 5 of the drain pipe 4 is closed, the upper end opening 8a of the trap 8 opens upward of the sewage inlet 6 and the lower end opening 8b seals the end opening 5. Since the end portion 5 is closed by the trap 8, the drainage channel is bent in a substantially inverted U-shape to form a trap when the terminal opening 5 is closed so that the trap is formed. Drain 3 at the bottom of the bowl 2
To prevent odor from flowing from the sewer pipe, and trap 8 pivotally supported in sewage inlet 6 rotates to open the terminal end of drain pipe section 4. When the portion 5 is opened, the lower end opening 8b of the trap 8 that has closed the terminal opening 5 is separated from the terminal opening 5, and the toilet 1 is positioned below the lower end opening 7 of the sewage dispenser 6 from the terminal opening 5. It can be drained to a sewer pipe located in the area. As described above, in the above-described configuration, when the trap 8 opens the terminal opening 5 of the drain pipe section 4, the discharged water is supplied to the bowl 2
Since the water flows due to the difference between the water level of the pool water 23 in the inside and the water level difference between the terminal opening 5 of the drain pipe section 4 and the pool water 23 required for water sealing of the drain port 3 at the bottom of the bowl 2, only waste water after use of the toilet 1 is used. , Etc., can be discharged. As a result, a smaller amount of water is required for discharging the water-filled pool water than a conventional flush toilet having a trap formed by bending a conventional drainage channel into a substantially inverted U-shape.

Further, when the trap 8 closes the terminal opening 5 of the drain pipe 4, the trap 8 functions as a release valve having an open upper end 8a, so that a closed valve device is provided. In comparison, the water pressure applied to the trap 8 is small, so that a large force is not required when closing the terminal opening 5. As a result, it is possible to mechanically simplify the opening / closing device for the terminal opening 5 of the drain pipe portion 4 and to increase the reliability.

When the trap 8 closes the terminal opening 5 of the drain pipe 4, the trap 8 connected to the terminal opening 5 has its upper end opening 8a opened upward of the sewage inlet 6. Therefore, even if the trap 8 cannot be rotated due to a power failure or the like, the overflowed pool water 23 is discharged from the upper end opening 8a of the trap 8,
Further, since the waste water is discharged from the lower end opening 7 of the sewage inlet 6 to the sewer pipe, an overflow pipe as a countermeasure against a power failure is installed like an open / close valve type flush toilet provided with a valve device at the end opening of the drain pipe section. There is no need, and the number of parts is small.

[0020]

According to the invention of claim 1 of the present invention, there is provided a flush toilet provided with a drain pipe portion having a terminal opening horizontally at the back of the toilet from a drain port provided at the bottom of the bowl,
The terminal opening is projected into the sewage thrower provided at the back of the toilet, a discharge port is provided at the lower end of the sewage thrower, and the lower end opening communicates with a sewer pipe arranged below the toilet, and the inside of the sewage thrower is The trap is pivotally supported so that the terminal opening can be selectively closed and opened, and the trap is opened with the upper end opening upward of the sewage inlet when the terminal opening is closed. The lower end opening has a bent shape so that it is connected to the terminal opening while maintaining the sealing property. When the terminal opening is closed by the trap, water is stored in the toilet, and when the terminal opening is opened, the toilet is opened. When the trap opens the end opening of the drainage pipe, the discharged water is discharged between the surface of the pool water in the bowl and the end opening of the drainage pipe. Water flows due to the difference in water level Compared with substantially inverted U-shape by bending flush toilet forming a trap, the amount of water required to discharge the reservoir water was water seal requires only a small amount.

Further, in a state where the trap is closed at the end opening of the drain pipe, the trap functions as a release valve having an open upper end, so that the trap is placed on the trap as compared with the case where a closed valve device is provided. The water pressure is small, and no large force is required when closing the end opening of the drainage pipe. As a result,
The opening / closing device for the terminal opening of the drain pipe can be mechanically simplified, and the reliability can be increased.

Further, when the trap closes the terminal opening of the drain pipe, the trap connected to the terminal opening has its upper end opening upward to the sewage injecting device. Even if the trap cannot be rotated, the overflowed pool water is discharged from the upper end opening of the trap, and further discharged to the sewer pipe through the opening provided at the lower end of the sewage inlet. There is no need to install an overflow pipe as a countermeasure against power failure, unlike the open / close valve type flush toilet with a valve device in the section,
The number of parts is small.

[Brief description of the drawings]

FIG. 1A is a side sectional view of a flush toilet according to an embodiment of the present invention, and FIG. 1B is a rear sectional view.

FIG. 2 is an explanatory diagram of a trap opening / closing operation in the embodiment.

FIG. 3 is an explanatory diagram of a trap opening / closing operation in the embodiment.

FIG. 4 is an explanatory diagram of a trap opening / closing operation in the embodiment.

FIG. 5 is a side sectional view of a conventional example.

FIG. 6 is a side sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toilet bowl 2 Bowl 3 Drain port 4 Drain pipe part 5 Termination opening 6 Sewage thrower 7 Drain 8 Trap 8a Top opening 8b Lower opening

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsuyuki Okumura Inventor, Matsushita Electric Works Co., Ltd., 1048, Kazuma, Kadoma, Osaka Prefecture (72) Inventor Takahiro Nakamura 1048, Kazuma, Kazuma, Kadoma, Osaka, Japan Matsushita Electric Works, Ltd. 72) Inventor Yoshiro Matsushita 1048 Kadoma Kadoma, Kadoma-shi, Osaka Pref. Inside Matsushita Electric Works, Ltd. (72) Inventor Makoto Nishikawa 1048 Kadoma Kadoma, Kadoma-shi, Osaka Pref. Matsushita Electric Works F-term (reference) 2D039 AB03 AD04 CB02

Claims (1)

[Claims] 1. A flush toilet provided with a drain pipe portion having a terminal opening horizontally at the rear of the toilet from a drain port provided at the bottom of the bowl, wherein the terminal opening projects into a waste water inlet provided at the rear of the toilet. A drain is provided at the lower end of the sewage inlet, the outlet communicates with a sewer pipe arranged below the toilet, and a trap is provided in the sewage inlet so that the terminal opening can be selectively closed and opened. The trap is pivotally supported, and when the terminal opening is closed, the upper end opening of the trap is opened upward of the sewage dispenser, and the lower end opening is connected to the terminal opening with sealing. It has a bent shape so that when the terminal opening is closed with a trap, water is collected in the toilet bowl,
A flush toilet characterized by being able to drain water from the toilet when the terminal opening is opened.