Ferrule Container Guide Mechanism for Reliable Column Insertion
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Solution Overview
Problem
The conventional ferrule container design makes it difficult to insert a column into a ferrule due to its small size, and manual handling can lead to foreign object adherence, affecting analysis results.
Innovation Solution
A ferrule container with a first column guide part to facilitate smooth insertion of the column into the ferrule, and a second guide part to prevent the column from being dropped, along with cover films to minimize hand contact and foreign object adherence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling is used to insert column into ferrule, then operation flexibility is maintained, but foreign objects adhere to ferrule affecting analysis results
Solution Approach 1:
The patent introduces a ferrule container with a guide part as an intermediary device. The guide part mediates between the operator's hand and the ferrule, allowing column insertion without direct hand contact with the ferrule. This resolves the contradiction by maintaining operational capability while eliminating foreign object contamination through the mediating guide structure.
Solution Approach 2:
The ferrule container is segmented into distinct functional parts: the container body, the guide part, and the ferrule accommodating space. The guide part is specifically segmented as a separate functional element that provides column guidance while isolating the ferrule from direct hand contact, thus preventing contamination while maintaining ease of operation.
2Measurement precision
If ferrule is made small for precision, then measurement precision is improved, but insertion operation becomes very difficult
Solution Approach 1:
The guide part acts as an intermediary that bridges the size discrepancy between the small ferrule and the larger column. It provides a tapered pathway that gradually guides the column into the ferrule's insertion hole, making the insertion operation feasible despite the ferrule's small dimensions and maintaining measurement precision.
Solution Approach 2:
The guide part features a tapered curved surface that gradually narrows toward the ferrule. This curvature provides a smooth transition pathway for the column, facilitating easy insertion into the small ferrule while maintaining the ferrule's precise small dimensions for accurate measurements.
3Object-affected harmful factors
If cover film is used to protect ferrule, then foreign object adherence is reduced, but operation complexity increases due to film removal
Solution Approach 1:
The cover film is applied in advance to protect the ferrule from foreign objects during storage and handling. The guide part is designed to facilitate easy film removal by providing a clear access pathway, thus the preliminary protective action is maintained while minimizing the complexity of subsequent removal operations.
Data Source
AI summary
A ferrule container 1 is provided with a ferrule accommodating part 11 and a first column guide part 12. A ferrule is accommodated in the ferrule accommodating part 11. The first column guide part 12 guides a column so as to insert the column into the ferrule accommodated in the ferrule accommodating part 11. Guiding of the column by the first column guide part 12 enables the column to be smoothly and reliably inserted into the ferrule accommodated in the ferrule accommodating part 11. Consequently, unlike a case in which an operator inserts a column while pinching a ferrule with hand, the work of inserting a column into a ferrule can easily be performed.