Offset Center of Gravity Sealing Member for Inkjet Refill Ports
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Solution Overview
Problem
Conventional sealing members for inkjet printers cause ink splashing and contamination when removed from the refill port, as the center of gravity is aligned with the central axis, leading to unpredictable splash directions.
Innovation Solution
A sealing member design with a protruding portion having an offset center of gravity, allowing for controlled removal by directing ink splash along a predetermined path, reducing contamination and improving user comfort during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sealing member is removed by holding the protruding portion, then the sealing member can be easily grasped and removed, but ink splashing and contamination occur due to unpredictable splash directions
Solution Approach 1:
The patent applies asymmetry by offsetting the center of gravity of the protruding portion from the central axis of the main body portion. This asymmetric design creates a predetermined splash direction when the sealing member is removed, transforming the harmful unpredictable ink splashing into a controlled directional flow that can be managed and contained.
2Stability of the object's composition
If the center of gravity is aligned with the central axis, then the sealing member has balanced symmetry, but ink splashes in unpredictable directions causing contamination
Solution Approach 1:
The patent deliberately introduces asymmetry by offsetting the center of gravity from the central axis. This resolves the contradiction by sacrificing perfect symmetrical balance to achieve controlled, predictable ink flow direction during removal, thereby reducing contamination while maintaining functional stability.
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 sealing member effectively directs ink splash towards a containment area, minimizing contamination and enhancing user experience by ensuring ink is contained during refill port opening.
Implementation Method 1
A center of gravity of the protruding portion may be offset from the central axis of the main body portion
Data Source
AI summary
A sealing member for an ink container includes a main body portion and a protruding portion. The ink container includes a refill port. The main body portion is configured to seal the refill port. The protruding portion is disposed on an upper surface of the main body portion and protrudes from the upper surface of the main body portion. The protruding portion extends at least through a central axis of the main body portion. A center of gravity of the protruding portion is offset from the central axis of the main body portion.