Flexible Pouch Container With Rotatable Cover Lock
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Solution Overview
Problem
Large liquid containers face challenges in accommodation due to increased weight and expansion, leading to liquid detention at folded parts during filling, making it difficult to easily assemble them into cases.
Innovation Solution
A container design featuring a case with a rotatable cover and locking mechanism that allows easy accommodation of a pouch with a flexible bag and vent plug, enabling the pouch to be assembled by moving the cover between positions and locking the vent plug, facilitating easy filling and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the bag size is increased to contain a large amount of liquid, then the liquid capacity is improved, but the weight and expansion of the bag increase, making it difficult to handle and assemble
Solution Approach 1:
The invention separates the liquid container into two independent parts: a flexible pouch containing the liquid and a rigid case providing structural support. The pouch can be filled to any capacity without being constrained by the case size, while the case provides stable handling characteristics. This segmentation allows the liquid capacity to be increased without proportionally increasing the overall weight and dimensions of the container assembly.
2Quantity of substance
If the bag size is increased to contain a large amount of liquid, then the liquid capacity is improved, but the bag expansion makes it difficult to accommodate in the case without folding
Solution Approach 1:
The pouch is designed as a flexible, dynamic container that can change its shape and volume. When empty or partially filled, the pouch remains compact and can be easily accommodated in the case. When filled with liquid, the pouch expands dynamically to accommodate the liquid volume while maintaining a manageable form factor due to its flexible nature, eliminating the need for folding even when containing large amounts of liquid.
3Ease of operation
If the bag is folded to fit in the case, then the accommodation is improved, but liquid detention occurs at the folded parts, causing filling obstacles
Solution Approach 1:
The pouch is pre-formed with a three-dimensional expanded structure before insertion into the case. This preliminary expansion allows the pouch to be inserted in its final filled configuration, eliminating the need to fold or compress it during assembly. The pouch maintains its expanded shape during filling, ensuring smooth liquid flow without detention at folded parts, thus maintaining high filling efficiency while achieving easy assembly.
4Ease of operation
If a rotatable cover with locking mechanism is used, then the assembly ease is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is designed to be self-actuating through the rotational motion of the cover itself. As the cover is rotated to its closed position, the locking protrusion on the cover automatically engages with the locking groove on the case, providing self-locking functionality. This eliminates the need for separate locking components or complex mechanisms, achieving easy assembly through simple rotational motion while maintaining structural simplicity.
Data Source
AI summary
There is provided a container including: a case with an opening and having a lower wall and a lateral wall, a cover configured to move between a first position blocking part of the opening of the case, and a second position uncovering the opening of the case, a pouch having a flexible bag and a vent plug, and a locking part configured to move between a position to lock the cover on the case, and a position to unlock the same. The opening exposes an internal space via part of the lateral wall. The lateral wall defining the opening has a locking portion to lock the vent plug. When the cover is in the first position, a leading end of the cover defines the opening. The locking part is positioned at the lateral wall defining the opening or at the leading end.