Flush toilet
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Solution Overview
Problem
Conventional flush toilets require frequent and difficult cleaning due to accumulation of dirty water in the groove between the toilet rim and seat, which is designed to prevent water from flowing out.
Innovation Solution
A projection rib is formed on the front upper face of the toilet rim, protruding outside the toilet seat when closed, to prevent dirty water from flowing out and facilitate cleaning by directing water into the toilet body and reducing accumulation on the rim.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a groove is formed in the toilet seat to prevent dirty water from flowing out, then water prevention is improved, but cleaning difficulty increases due to water accumulation in the groove
Solution Approach 1:
Instead of forming a groove in the toilet seat that traps water, the invention inverts the approach by forming a projection rib on the rim that directs water outward. This reverses the water flow path from accumulating in a groove to being channeled away, simultaneously maintaining water prevention while eliminating the cleaning problem associated with grooves.
Solution Approach 2:
The invention extracts the water channeling function from the toilet seat groove and relocates it to a projection rib on the rim. By removing the groove structure that caused cleaning difficulties and replacing it with a projection-based water directing mechanism, the solution separates the water prevention function from the cleaning maintenance issue.
2Reliability
If a projection rib is formed on the rim to prevent dirty water from flowing out, then water prevention is improved, but device complexity increases
Solution Approach 1:
The projection rib is integrated directly into the rim structure, merging the water prevention function with the existing rim component. This consolidation avoids adding separate complex mechanisms while achieving effective water channeling, thus improving water prevention without significantly increasing device complexity.
Solution Approach 2:
The projection rib is strategically positioned only at the specific location on the rim where water flow needs to be controlled. This localized structural modification focuses the complexity only where necessary for water prevention, rather than requiring complex mechanisms throughout the entire toilet structure.
Data Source
AI summary
A flush toilet enabling easy cleaning besides capable of preventing dirty water from flowing out is provided. In the flush toilet, a toilet seat is placed on a rim of a toilet body with the toilet seat free to open and close on a pivot axis on a side of a rear end thereof. A projection rib for preventing dirty water from flowing out is formed on a front upper face of the rim so that it protrudes from an outer periphery of the rim. The projection rib is provided so that it is outside a front periphery of the toilet seat when the toilet seat is in closing state.