JP2021113496A5

JP2021113496A5 -

Info

Publication number: JP2021113496A5
Application number: JP2021077367A
Authority: JP
Filing date: 2021-04-30
Publication date: 2021-11-25
Anticipated expiration: 2036-03-18

Description

上記の目的を達成するために、本発明は、洗浄水源から供給される洗浄水により便器を洗浄して汚物を排出する水洗大便器であって、ボウル形状の汚物受け面と、この汚物受け面の上部に形成されたリム部と、汚物受け面の上端部に形成された棚部と、汚物受け面の下方に形成された溜水部と、を備えるボウル部と、溜水部にその入口が接続され汚物を排出する排水路と、ボウル部に洗浄水を吐水して汚物受け面上に旋回流を形成する吐水口部と、を備え、ボウル部の上記汚物受け面は、汚物受け面の先端部と、溜水部の先端部よりも後方側との間において、前方側に向かって拡がるように形成された扇形の凹部を形成し、汚物受け面の扇形の凹部は、その横方向の両側にそれぞれ前後方向に延びる端部を有し、ボウル部の前後方向に延びる中心線に対して直交する横方向に沿った断面において、凹部の上端部とこの凹部に接続された汚物受け面の下端部である接続部との間が凸状の曲面により接続され、この凸状の曲面が扇形の凹部の端部となり、この凹部の端部が、凹部の上端部を通る接線と汚物受け面の接続部を通る接線とが交わる変曲点により決定される前後方向に延びる仮想線の下方に位置するように形成され、汚物受け面の凹部は、凹部の中央底面から凹部の端部までの高さが、汚物受け面の前方から後方に向けて増大するように形成されていることを特徴としている。
このように構成された本発明においては、汚物受け面上を旋回する洗浄水を、溜水部から拡がるように形成された扇形の凹部により比較的広い領域から溜水部に向かって導きやすくすることができ、扇形の凹部によって導かれる洗浄水が溜水部の先端に向かって集められ、それにより、溜水部内に汚物を押し込む比較的強い押し込み流を発生させることができ、汚物排出性能を向上させることができる。 In order to achieve the above object, the present invention is a flush toilet that cleans the toilet bowl with washing water supplied from a washing water source and discharges filth, and has a bowl-shaped filth receiving surface and the filth receiving surface. A bowl portion having a rim portion formed on the upper part of the toilet, a shelf portion formed on the upper end portion of the filth receiving surface, and a water collecting portion formed below the filth receiving surface, and an inlet thereof at the sewage receiving portion. The sewage receiving surface is provided with a drainage channel to which a toilet is connected and discharges filth, and a spout portion that discharges washing water into the bowl portion to form a swirling flow on the sewage receiving surface. A fan-shaped recess formed so as to expand toward the front side is formed between the tip of the toilet and the rear side of the tip of the reservoir, and the fan-shaped recess on the filth receiving surface is laterally oriented. The upper end of the recess and the dirt receiving surface connected to this recess in the cross section along the lateral direction orthogonal to the center line extending in the front-rear direction of the bowl portion, which has ends extending in the front-rear direction on both sides of the bowl. It is connected to the connecting part which is the lower end of the toilet by a convex curved surface, and this convex curved surface becomes the end of the fan-shaped concave portion, and the end of this concave portion is the tangent line passing through the upper end of the concave portion and the dirt catcher. It is formed so as to be located below the virtual line extending in the front-rear direction determined by the turning point where the tangent line passing through the connecting portion of the surface intersects, and the recess of the dirt receiving surface extends from the central bottom surface of the recess to the end of the recess. It is characterized in that the height of the sewage is formed so as to increase from the front to the rear of the filth receiving surface .
In the present invention configured as described above, the washing water swirling on the filth receiving surface is easily guided from a relatively wide area toward the water storage portion by the fan-shaped recess formed so as to spread from the water storage portion. The wash water guided by the fan-shaped recess can be collected toward the tip of the water reservoir, which can generate a relatively strong push-in flow that pushes the filth into the water basin, improving the sewage discharge performance. Can be improved.

Claims

A flush toilet that cleans the toilet with the wash water supplied from the wash water source and discharges filth.
A bowl-shaped filth receiving surface, a rim portion formed on the upper part of the filth receiving surface, a shelf portion formed on the upper end portion of the filth receiving surface, and a water reservoir formed below the filth receiving surface. With a bowl part,
A drainage channel whose inlet is connected to the above water reservoir and discharges filth,
The bowl portion is provided with a spout portion that discharges washing water to form a swirling flow on the filth receiving surface.
The filth receiving surface of the bowl portion is a fan-shaped concave portion formed so as to expand toward the front side between the tip portion of the filth receiving surface and the rear side of the tip portion of the water reservoir portion. Form and
The fan-shaped recesses on the filth receiving surface have end portions extending in the front-rear direction on both sides in the lateral direction thereof, and in a cross section along the lateral direction orthogonal to the center line extending in the front-rear direction of the bowl portion. The upper end of the concave portion and the connection portion which is the lower end of the filth receiving surface connected to the concave portion are connected by a convex curved surface, and this convex curved surface becomes the end portion of the fan-shaped concave portion. The end of the recess is formed so as to be located below the virtual line extending in the front-rear direction determined by the inflection point at which the tangent line passing through the upper end portion of the recess and the tangent line passing through the connection portion of the dirt receiving surface intersect. Being done
The recess of the filth receiving surface is formed so that the height from the central bottom surface of the recess to the end of the recess increases from the front to the rear of the filth receiving surface. ..

In the concave portion of the filth receiving surface of the bowl portion, the radius of curvature of the central bottom surface of the concave portion in the cross section in the left-right direction decreases from the tip end portion of the filth receiving surface toward the tip end portion of the water reservoir portion. The water-washing urinal according to claim 1, which is formed.

The flush toilet according to claim 1 or 2, wherein the recess of the filth receiving surface of the bowl portion is formed as a fan shape formed by a central angle in the range of 30 degrees to 120 degrees.

1. The water-washing stool according to any one of 3 to 3.

The height of the recess of the filth receiving surface of the bowl portion from the central bottom surface of the recess to the shelf provided at the upper end of the filth receiving surface is from the tip of the filth receiving surface to the reservoir. The flush toilet according to any one of claims 1 to 4, which is formed so as to increase toward the tip of the water portion.