Writing Tool Refill Circulation Path for Smooth Ink Supply
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Solution Overview
Problem
Existing writing tools face challenges in efficiently supplying ink to the writing part of the pen tip of the pen tip of the pen tip of the pen tip of the pen tip of the tip of the tip of the pen tip of the tip of the tip of the tip of the tip of the writing part of the writing tool, where the ink flow from the ink reservoir to the ink occluding member is not smooth, leading to suboptimal ink supply to the writing part.
Innovation Solution
A refill for a writing tool that includes an ink reservoir, an ink occluding member, a collector, and an ink guiding member, where the ink occluding member occludes ink from the reservoir, the collector holds ink due to capillary action, and the ink guiding member ensures smooth ink flow to the writing part, maintaining an optimal ink supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the ink occluding member occludes ink from the ink reservoir, then the ink supply to the writing part is maintained, but the ink flow becomes insufficient when circulation stops
Solution Approach 1:
The patent introduces a circulation path as an intermediary channel that connects the ink reservoir and ink occluding member, enabling continuous ink circulation. This mediator structure allows ink to flow smoothly from the reservoir through the occluding member, maintaining adequate ink supply even when direct circulation stops, thereby resolving the contradiction between ink supply quantity and circulation efficiency
Solution Approach 2:
The circulation path is designed to pre-establish a continuous ink flow route before ink depletion occurs. By creating this preliminary circulation channel, the system ensures that ink can continuously move from the reservoir to the occluding member and back, preventing the situation where circulation stops and ink supply becomes insufficient
2Reliability
If the collector holds ink due to capillary action, then ink supply balance is achieved, but ink flow smoothness from reservoir to occluding member is compromised
Solution Approach 1:
The patent segments the ink management system into distinct functional zones: the circulation path handles smooth ink flow from the reservoir to the occluding member, while the collector serves as a separate component that holds excess ink through capillary action. This segmentation allows each component to optimize its specific function without interfering with the other, maintaining both flow smoothness and supply balance
Solution Approach 2:
The circulation path acts as a mediator that facilitates smooth ink flow between the reservoir and occluding member, while the collector serves as another intermediary that manages excess ink. These intermediary structures work together to ensure that the collector's capillary action does not disrupt the smoothness of ink flow in the circulation path, thereby maintaining both reliability and ease of operation
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
Ensures smooth ink flow from the reservoir to the writing part, preventing ink leakage and ensuring consistent ink supply until the ink reservoir is nearly empty, thus maintaining optimal writing performance.
Implementation Method 1
a collector (44) that is interposed between the ink occluding member (43) and the pen tip part (42) and holds the liquid ink in the ink occluding member (43) due to a capillary action
Data Source
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AI summary
A plurality of inlets are defined in a circulation path between an ink reservoir and an ink occluding member by an inlet forming part formed in the circulation path.