Ink Cartridge Bag Insertion via Partition Slit
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Solution Overview
Problem
The manufacturing of ink cartridges is hindered by difficulties in interposing the ink pack between the upper and lower cases, leading to issues such as wrinkle generation and inefficient liquid injection.
Innovation Solution
A liquid container design featuring a liquid containing bag with a flat end portion and a case member with an end portion accommodating section, main portion accommodating section, and a partition wall with a slit, allowing for easy insertion and injection of the liquid without wrinkles, and a method involving steps for preparing the bag and case member, inserting the bag, and injecting liquid through the slit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the ink pack is interposed between the upper case and lower case after ink filling, then the ink cartridge can be assembled, but the work becomes difficult and wrinkle generation occurs during injection
Solution Approach 1:
The case member is divided into an end portion accommodating section and a main portion accommodating section by a partition wall. The slit in the partition wall allows the end portion of the liquid containing bag to pass through, segmenting the insertion path and enabling smooth injection without wrinkles.
Solution Approach 2:
The flat end portion of the liquid containing bag is prepared in advance to extend in the first direction, and the end portion accommodating section is designed to receive and position this end portion before main injection, preliminary organizing the bag structure to prevent wrinkles during subsequent injection.
2Productivity
If the liquid containing bag is inserted into the case member without proper guiding structure, then insertion is simple, but wrinkle generation occurs and liquid injection becomes inefficient
Solution Approach 1:
The case member is segmented into distinct accommodating sections (end portion and main portion) separated by a partition wall with a slit. This segmentation provides structured guidance for the liquid containing bag during insertion, improving injection efficiency without excessive complexity.
Solution Approach 2:
The partition wall features a local quality difference with a slit that allows selective passage of the end portion of the liquid containing bag. This localized feature provides the necessary guidance and structure only where needed, balancing productivity improvement with device simplicity.
Data Source
AI summary
A liquid container includes a liquid containing bag and a case member. The liquid containing bag includes a flat end portion extending in a first direction. The case member defines an opening at one end and accommodates the liquid containing bag inserted from the opening in the first direction. The case member has an end portion accommodating section extending in the first direction and accommodating at least the end portion of the liquid containing bag, a main portion accommodating section accommodating a main portion of the liquid containing bag, and a partition wall that partitions the end portion accommodating section and the main portion accommodating section. The partition wall includes a slit extending along the first direction, with the end portion of the liquid containing bag being inserted through the slit.