Liquid Holding Container Cylindrical Wall Leak Prevention
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Solution Overview
Problem
Existing liquid holding containers for waste liquid in printing apparatuses experience leakage when turned upside down due to ink oozing out from the pivotal part or connection between the upper cover and container main body, leading to potential ink loss.
Innovation Solution
A liquid holding container design featuring a cylindrical wall extending from the opening edge of the cover part into the housing, with the absorber and cover part disposed to overlap in the extension direction of the wall, creating a space between them to prevent leakage by accommodating any free ink that would otherwise overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the container is turned upside down for replacement or handling, then the absorber can be easily replaced and the container can be handled conveniently, but waste liquid leaks out from the pivotal part or connection part due to gravity causing ink to ooze out from the absorber
Solution Approach 1:
The cylindrical wall part acts as an intermediary structure between the absorber and the opening part. It creates a physical barrier that prevents waste liquid from reaching the pivotal part and connection part when the container is inverted, while still allowing the absorber to be replaced and the container to be handled conveniently.
Solution Approach 2:
The container interior is segmented into different functional zones by the cylindrical wall part. The wall creates a protected zone around the pivotal part and connection part, separating them from the waste liquid containment area where the absorber is located. This segmentation prevents liquid from reaching critical components during inversion.
2Productivity
If the opening part is provided at the center of the upper part to receive waste liquid, then waste liquid can be efficiently received and absorbed, but when turned upside down, liquid leaks from the opening part or pivotal part
Solution Approach 1:
The cylindrical wall part serves as a mediator that allows the opening part to remain centrally located for efficient waste liquid reception while preventing liquid from reaching the pivotal part when inverted. The wall creates a directional barrier that manages liquid flow based on container orientation.
Solution Approach 2:
The cylindrical wall part is strategically positioned to provide localized protection at critical areas (pivotal part and connection part) while maintaining the central opening for waste liquid reception. The wall's location and dimensions are optimized to provide leak prevention exactly where needed without interfering with waste liquid reception functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The container effectively prevents waste liquid leakage even when turned upside down by utilizing the space between the absorber and cover to hold excess ink, ensuring containment and reducing the risk of ink loss during handling or tilting.
Implementation Method 1
an absorber (13) configured to absorb liquid
Data Source
AI summary
Provided is a liquid holding container in which waste liquid leakage is not caused even when the container is turned upside down. For this purpose, a surface of an absorber facing the rear face of a cover part is disposed apart from the cover part so as to form a space between the cover part and the absorber of a waste liquid holding container.