JP2006057409A - Flushing type toilet bowl - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flushing type toilet bowl preventing washing water from leaking from a mounting part of a washing water tank in a flushing type toilet bowl which mounts the washing water tank on a rear upper part and supplies washing water from the washing water tank. <P>SOLUTION: The flushing type toilet bowl has a tank mounting part which mounts the washing water tank on the rear upper part and is provided with a water feed hole to supply the washing water from the washing water tank, an outlet of a rim part which discharges the washing water in almost horizontal direction along an upper edge of a bowl part, a first communication passage which communicates the outlet of the rim part with the water feed hole, and an annular protruded weir formed to surround the water feed hole on the tank mounting part. The flushing type toilet bowl has a second communication passage which communicates the inside of the annular protruded weir and the bowl part, and the first and second communication passages are respectively independent. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a flush toilet that places a wash water tank on the upper rear side and supplies wash water from the wash water tank.

  Conventionally, there is a flush toilet that is mounted in a rear upper portion and supplies flush water from the flush water tank as disclosed in Japanese Patent Laid-Open No. 2001-173072. In the flush toilet described in the above publication, a water supply port 53 is provided at the approximate center of the rear upper portion, and an annular projecting portion 54 that projects around the water supply port 53 is provided. There is no wash water tank. And the drain cylinder part of the drain valve arranged in the bottom part of the washing water tank is inserted into the water supply port 53, and the packing is interposed between the drain cylinder part and the water supply port, that is, the washing water tank and the toilet bowl (not shown). The connection part with the main body 51 is sealed.

JP 2001-173072 A (see FIGS. 1 and 2)

  However, in the conventional flush toilet, due to deterioration of the packing, poor assembly when the washing water tank is assembled to the toilet body 51, etc., between the packing and the water supply port 53 and the drain cylinder, that is, the washing water tank and the toilet body 51 There is a risk that the washing water leaks from the connecting portion, and flows out from the washing water tank mounting hole 55 arranged to attach and fix the washing water tank to the toilet body and flow down to the floor surface.

  In view of this, the present invention provides a flush toilet in which a washing water tank is placed at the upper rear portion and the washing water is supplied from the washing water tank, so that the washing water does not leak from the placing portion of the washing water tank. The purpose is to provide a toilet bowl.

  In order to solve the above-mentioned problem, the present invention described in claim 1 includes a tank mounting portion provided with a water supply port for mounting a cleaning water tank on a rear upper portion and supplying cleaning water from the cleaning water tank; A rim portion water discharge port that discharges the cleaning water in a substantially horizontal direction along the upper edge of the bowl portion, a first communication path that connects the rim portion water discharge port and the water supply port, and the tank mounting portion. A flush toilet comprising an annular protruding weir formed so as to surround the water supply port, and a second communication path connecting the inside of the annular protruding weir and the bowl portion And the first connecting path and the second connecting path are independent of each other.

  In the present invention configured as described above, it is assumed that the packing is deteriorated, the assembly of the cleaning water tank is not properly performed when the cleaning water tank is assembled to the toilet body, and the like. Even when the cleaning water leaks from the connecting portion, the leaked water is blocked inside the annular protruding weir and flows out to the bowl portion through the second communication path. Therefore, there is no risk of wetting the floor. Moreover, since the said 2nd connection path is independently formed in the 1st connection path which connects the said rim part spout and the said water supply opening, it has influence on the flow of the wash water which flows through a 1st connection path. It does not affect the washing performance of the flush toilet.

  The present invention according to claim 2 is characterized in that the second communication path is formed by integral molding.

  In this invention comprised in this way, it becomes an integral structure with the molded object of the flush toilet bowl, and the flush toilet bowl which is good in appearance can be realized.

  Moreover, the present invention described in claim 3 is characterized in that at least a bottom portion of the second communication path is formed to be inclined downward from the protruding dam side toward the bowl portion side.

  In this invention comprised in this way, the leaked water which flowed into the 2nd connection path is discharged | emitted in a bowl, without staying in a 2nd connection path. For this reason, even when used in a cold region, the inside of the second communication path is not frozen and the cross-sectional area of the flow path is not narrowed or blocked.

  According to the flush toilet of the present invention, it is possible to prevent the washing water from leaking from the mounting portion of the washing water tank and to wet the floor surface.

Hereinafter, the present invention will be specifically described with reference to FIGS. 1 and 2. FIG. 1 is a top view of a flush toilet according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view taken along the line aa of FIG.
A tank placing portion 2 for placing a washing water tank (not shown) for storing toilet flushing water is provided at the upper rear portion of the toilet body 1. The tank mounting portion 2 is provided with a water supply port 3 for supplying cleaning water from the cleaning water tank, and an annular projecting weir 4 formed so as to surround the water supply port 3, and further, an annular projecting weir. A washing water tank mounting hole 5 is disposed outside the 4 in order to attach and fix the washing water tank to the toilet body 1. Further, a drain pipe (not shown) of a drain valve disposed at the bottom of the wash water tank is inserted into the water supply port 3 and a packing 6 is interposed between the drain tube part and the water feed port 3, that is, the wash water tank. And the connecting part of the toilet body 1 are sealed.

  A drainage hole 7 is opened in a portion that is outside the packing 6 and that is in contact with the inside of the annular protruding weir 4. The drainage hole 7 is a second connecting passage 10 ball formed integrally with the toilet body 1. The bowl portion 21 communicates with the opening portion 11 on the portion 21 side. Further, the height position of the drain hole 7 is set higher than the height position of the rim upper surface 24 of the toilet body 1. The water supply port 3 communicates with the rim portion water discharge port 8 that discharges cleaning water in a substantially horizontal direction along the upper edge of the bowl portion 21 by the first communication path 9.

Next, the behavior of the washing water will be described.
When the toilet cleaning operation is performed, the cleaning water stored in a cleaning water tank (not shown) flows into the toilet body 1 from the water supply port 3, and passes from the rim spout 8 to the bowl 21 through the first communication path 9. Water is discharged in a substantially horizontal direction, gradually falls downward while circling (washing) the bowl portion 21, flows in from the trap inlet 22 while taking up the filth, and flows out from the toilet drain 23 together with the filth.

  At that time, if the packing 6 is deteriorated, or a cleaning water tank (not shown) is attached to the toilet body 1 due to an assembly failure, the gap between the packing 6 and the water supply port 3 and the drain cylinder, that is, the cleaning water tank and the toilet body (not shown) are used. 1 even if cleaning water leaks from the connecting portion to 1, the leakage is blocked inside the annular protruding weir 4, flows into the second communication path 10 through the drainage hole 7, and the bowl portion from the opening 11. To 21. Therefore, there is no risk of overflowing from the annular protruding weir 4 and wetting the floor surface. Moreover, since the 2nd connection path 10 is formed independently of the 1st connection path 9 which connects the rim part spout 8 and the water supply port 3, it is the flow of the washing water which flows through the 1st connection path 9. It does not affect the washing performance of the flush toilet.

  Further, even if the first communication path 9 is filled with the washing water flowing into the toilet body 1 from the water supply port 3, the first communication path 9 and the second communication path 10. Are independent of each other, so that water is ejected from the drain hole 7 communicating with the second communication path 10, and there is no risk of wetting the floor surface due to water leakage.

  Moreover, since the height position of the drainage hole 7 is set higher than the height of the rim upper surface 24 of the toilet body 1, even if the toilet body 1 is clogged and sewage overflows from the rim upper surface 24, The sewage does not overflow from the drain hole 7.

  In addition, the opening 11 on the side of the bowl portion 21 that is communicated with the drain hole 7 and the second communication path 10 is a position where it is difficult for the washing water circulating around the bowl portion 21 to flow from the opening 11, that is, a position where it is difficult to flow backward. It is preferable to arrange in.

  In the present embodiment, the opening 11 is disposed at the upper rear edge of the bowl portion 21, and is discharged from the rim portion spout 8 to the bowl portion 21 in a substantially horizontal direction to circulate (wash) the bowl portion 21. The hole wall 12 on the upstream side of the wash water is shifted to the front side of the toilet bowl, and the hole wall 13 on the downstream side is shifted to the rear side of the toilet bowl, so that the wash water hardly flows from the opening 11. Therefore, there is no fear of backflowing and ejecting from the drain hole 7 to wet the floor surface.

  In addition, since the second communication path is formed integrally with the toilet body 1, a flush toilet with a good appearance can be realized, and the number of parts can be reduced. The process can be omitted.

  Further, the bottom portion 14 of the second communication path is inclined downwardly from the annular drain hole 7 side toward the opening portion 11 on the bowl portion 21 side as A → B → C → D shown in FIG. Therefore, even if water leaks into the second communication path 10, the water leaks to the bowl portion 21 without staying in the second communication path 10. Therefore, even when used in a cold region, the inside of the second communication path 10 is not frozen and the cross-sectional area of the flow path is not reduced or blocked.

It is a top view of the flush toilet bowl of one embodiment concerning the present invention. It is aa longitudinal cross-sectional view of FIG. It is a top view of the conventional flush toilet bowl. It is a bb longitudinal cross-sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Toilet body 2 ... Tank mounting part 3 ... Water supply port 4 ... Annular projecting dam 5 ... Washing water tank mounting hole 6 ... Packing 7 ... Drainage hole 8 ... Rim part spout 9 ... First communication path 10 ... Second communication path 11 ... opening 12 ... upstream hole wall 13 ... downstream hole wall 14 ... bottom 21 ... bowl 22 ... trap inlet 23 ... toilet drain port 24 ... rim upper surface 51 ... toilet body 53 ... water supply port 54 ... Annular projection 55 ... Washing water tank mounting hole

Claims (3)

A washing water tank is placed on the upper rear part and a tank mounting part provided with a water supply port for supplying washing water from the washing water tank, and the washing water is discharged in a substantially horizontal direction along the upper edge of the bowl part. A rim portion water spouting port, a first communication path that connects the rim portion water spouting port and the water supply port, and an annular projecting weir formed so as to surround the water supply port provided in the tank mounting portion, A flush toilet equipped,
Providing a second communication path connecting the inside of the annular projecting weir and the bowl portion;
The flush toilet, wherein the first communication path and the second communication path are independent of each other. The flush toilet according to claim 1, wherein the second communication path is formed by integral molding. 3. The flush toilet according to claim 1, wherein at least a bottom portion of the second communication path is formed to be inclined downward from the protruding weir side toward the bowl portion.