JPH06240732A - Flush toilet - Google Patents

Abstract

PURPOSE:To reduce a flushing noise due to washing water in a closet body. CONSTITUTION:An air separator section 17 is provided at a rim water passage 12, and right and left water passages 12A and 12B are connected to each other to form a rim water passage 12 for extension over both sides. A separator chamber 20 is formed in the air separator section 17. Also, a vent hole 21 communicated with the chamber 20 is provided on top thereof and a communication hole 22 continuous to the inside of a bowl section 11 is provided on the bottom of the chamber 20. In addition, the vent hole 21 is positioned above the level of water jet holes 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet having a rim water passage on the upper four sides of a bowl portion of a toilet body and supplying wash water into the ball portion from the rim water passage.

[0002]

2. Description of the Related Art Conventionally, one form of flush toilet is shown in FIG.
As shown in FIG. 2, an annular rim water passage 2 is formed on the entire circumference of the upper portion of the ball portion 1 of the flush body, and a discharge port for discharging jet water is directed toward the rear side of the ball portion 1, Further, cleaning water is supplied from the plurality of water spray ports 4 formed at a predetermined interval on the bottom portion 3 of the rim water passage 2 and the drain port to the ball portion 1.
There is a configuration to supply inside. The cleaning water supplied from the cleaning tank at the rear of the toilet body configured as described above is supplied to the jet water discharge outlet and a part of the cleaning water is supplied to the rim water passage 2. Waterway 2
The water is divided into left and right on the rear side and sequentially discharged from the water spray port 4 into the ball portion 1, and merged on the tip side of the toilet body.

[0003]

However, in the structure in which the cleaning water merges at the tip side of the rim water passage 2, noise at the time of merging and an air pool 5 is generated at the start of cleaning, and the rim water passage 2 is filled with water. Therefore, the air staying in the water channel 2 cannot be exhausted all at once, and the air and the cleaning water are mixed from the water spray port 4 to become cleaning water containing bubbles and are supplied into the ball portion 1. At this time, there is a problem that a large mixed sound is generated, and therefore, while the rim water passage 2 is full and the air is completely discharged, there is a problem that the cleaning noise becomes high due to the entrainment of air.

An object of the present invention is to provide a flush toilet capable of solving the above-mentioned conventional problems.

[0005]

In order to solve the above technical problems, the present invention provides an annular rim water passage that communicates with a flush water source at the rear of the toilet body around the upper end of the bowl of the toilet body. In a flush toilet having a plurality of water spray outlets for discharging washing water toward the ball portion on the bottom wall of the rim water passage, an air separation unit is provided in the rim water passage and is adjacent to a partition wall on one side of the air separation unit. The left and right water passages are connected to each other via a water passage to form a rim water passage that turns on both sides, a separation chamber is formed in the air separation portion, and an air vent hole communicating with the separation chamber is provided above the separation chamber. The flush toilet bowl has a structure in which a communication hole communicating with the ball portion is formed at the bottom of the separation chamber, and the air vent hole is located above the water spray port.

[0006]

With the above structure, the air staying in the rim water passage after the cleaning is started can be removed from the air separating portion, and the air bubbles that flow into the air separation chamber when the rim water passage is full are mixed. It is possible to reduce the cleaning noise by separating the air of the cleaning water and discharging only the water into the ball portion.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view of a toilet body 10 of a flush toilet, and FIG. 1
0 is an annular rim water passage 1 around the entire upper edge of the ball portion 1
2 is formed, and a supply portion 13 that communicates with a washing tank (not shown) that is a washing water source is formed on the rear side thereof, and this supply portion 13 is communicated with a jet water passage 14 formed on the outer periphery of the ball portion 11. The cleaning water is provided so as to be ejected from the jet water ejection hole 15, and a part of the cleaning water from the supply unit 13 is shunted left and right from the rear side of the rim water passage 12 and supplied to the front side. Is provided.

Further, as shown in FIG. 2, the rim water passage 12
A water spray port 16 communicating with the inside of the ball portion 11 at a predetermined interval is provided at the bottom of the water passage 12A, and a water spray communicating with the inside of the ball portion 11 at a predetermined interval also at the bottom of the other water passage 12B. The mouth 16 is formed so as to extend therethrough. An air separating portion 17 is formed on the front side of the rim water passage 12 formed in this way.

The air separating section 17 is provided in the water passages 12 on the left and right.
Communication passage 1 having a water spray port 16a through which A and 12B communicate
A separation chamber 20 is formed on the front side of the partition 9 by being partitioned by a partition wall 18, and an air vent hole 21 communicating with the separation chamber 20 is formed in the upper center part of the partition wall 18.
A communication hole 22 that communicates with the inside of the ball portion 11 is formed through the bottom of the.

When the flush water is supplied from the flush water tank to the water supply section 13 of the toilet body 10 thus provided, the flush water is supplied from the supply section 13 through the jet water passage 14 and the drain trap from the jet water ejection hole 15. It spouts to the 23 side and feeds filth.

A part of the cleaning water supplied to the supply unit 13 is supplied from the supply unit 13 to the water passages 12A of the rim water passage 12.
It is divided into 12B to the left and right. On the side of the water passage 12A, the diverted washing water sequentially flows into the ball portion 11 through the water spouts 16 and 16 to wash the inside of the wall surface of the ball portion 11, and on the side of the water passage 12B, the spout water is also sequentially spouted. 16 and 16 flow into the ball portion 11 to clean the inside of the wall surface of the ball portion 11. As described above, the air retained in the rim water passage 12 is urged toward the front side by the wash water diverted through the water passages 12A and 12B, and is formed on the tip side thereof to penetrate the partition wall 18 of the air separation unit 17. A communication hole 2 that flows into the separation chamber 20 through the air vent hole 21 provided and further communicates with the ball portion 11.
It is discharged into the ball portion 11 from 2.

When the cleaning water in the rim water passage 12 is filled and the air in the water passage 12 is discharged from the air separating portion 17, the cleaning water containing bubbles is introduced into the air separating portion 17 through the air vent hole 21. For example, if the cleaning water containing bubbles generates noise when it directly flows out into the space of the ball portion 11 through the air vent hole 21, the air separation portion 17 separates the noise. Since the chamber 20 is provided, the cleaning water containing bubbles that has flowed into the separation chamber 20 flows into the large separation chamber 20 through the air vent hole 21 having a small diameter. Thus, the water can be separated at an early stage, and only the water can flow out into the ball portion 11 from the communication hole 22 to prevent the generation of noise. In addition, the cushioning property of the air layer in the separation chamber 20 promotes the separation of the inflowing air of the cleaning water containing bubbles, so that only the cleaning water flows out from the communication hole 22 and the generation of noise is prevented.

Next, FIGS. 4 and 5 show another embodiment of the air separation portion. The air separation portion 25 (also referred to as an air separation member) is formed separately from the air separation portion 17, It is provided on the confluence side of the water passages 12A and 12B as in the above embodiment, and the rim water passage 12 on the confluence side.
A mounting hole 26 having a predetermined diameter is formed through the bottom of the mounting hole 26, and an air separating member 25 is mounted in the mounting hole 26.

The air separating member 25 is made of, for example, a synthetic resin material, and is a cylindrical body having a predetermined diameter, which is provided with upper and lower lids 27a and 27b and is formed as a closed body having a separation chamber 28. Together with the upper and lower lids 27a, 27
An air vent hole 29 and a communication hole 30 are provided through b, and the flange portion 3 that abuts the bottom portion is provided on the four circumferences of the lower lid 27b.
1 is formed, and by inserting and fixing the air separation member 25 in the mounting hole 26, the lid 27a side is mounted so as to face a predetermined height position in the rim water passage 12, and the other toilet body 10 The side is formed as in the conventional case. Therefore, by attaching the air separation member 25, the same operational effect as that of the above-described embodiment is obtained.

[0015]

EFFECTS OF THE INVENTION According to the present invention, with the above-mentioned configuration, the air in the rim water passage can be discharged from the air separating portion side at the initial stage to significantly reduce the entrainment of air. When draining wash water when the rim water passage is full,
It is possible to separate the bubbles of the washing water containing the bubbles concentrated in the air separation chamber, reduce the noise generated from the toilet body, and provide a comfortable washing action.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a toilet body.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view of an air separation unit side on the front side of the rim water passage.

FIG. 4 is a vertical cross-sectional view in which an air separation portion of another aspect is formed on the front side of the rim water passage.

FIG. 5 is a cross-sectional view of a rim water passage formed in a conventional toilet body.

[Explanation of symbols]

 10 Toilet body 11 Ball part 12 Rim water passage 12A, 12B Separation water passage 16,16a Water injection port 17,25 Air separation part 20,28 Separation chamber 21,29 Air vent hole 22,30 Communication hole

Claims (1)

[Claims] 1. The entire upper end of the ball portion 11 of the toilet body,
An annular rim water passage 12 that communicates with a washing water source at the rear of the toilet body is provided, and the ball portion 1 is provided on the bottom wall of the rim water passage 12.
In a flush toilet having a plurality of water spray ports 16 for discharging flush water in one direction, an air separation unit 17 is provided in the rim water passage 12.
And the left and right water passages 12A and 12B are connected to each other through the water passage 19 adjacent to the one side partition wall 18 of the air separation portion 17 to form the rim water passage 12 that turns on both sides. Forms a separation chamber 20, and the separation chamber 20 is formed above the separation chamber 20.
Is provided with an air vent hole 21 communicating with the separation chamber 20.
2. A flush toilet having a structure in which a communication hole 22 communicating with the ball portion 11 is formed in the bottom of the above, and the air vent hole 21 is positioned above the water spray port 16.