Container Bag With Elastic Loops for Reusable Powder Liners
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Solution Overview
Problem
The existing methods for manufacturing container bags are complex, time-consuming, and inefficient, leading to increased production costs and reduced durability due to manual labor, potential damage from impact, and difficulty in separating the outer bag and inner liner without contamination or resource waste.
Innovation Solution
A container bag design featuring a woven fabric outer bag with a quadrangular cross-section, an inner liner, and connection loops made of elastic material that are triply bent to secure the inner liner, allowing for easy assembly and disassembly without contamination, and enhancing durability and reusability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outer bag and inner liner are combined using adhesive tape or sewing methods, then the fixing strength is improved, but the manufacturing complexity and time consumption increase significantly
Solution Approach 1:
The connection system is divided into separate components: connection loops attached to the outer bag and a separate fixing member with hooks that engages with the loops. This segmentation allows independent manufacturing of the outer bag and inner liner, which can then be quickly assembled by simply engaging the hooks with the loops, eliminating complex sewing or adhesive processes while maintaining strong connection.
Solution Approach 2:
The connection loops and fixing members are designed to self-connect through the hook-and-loop mechanism. The hooks on the fixing member automatically engage with the connection loops on the outer bag without requiring additional fastening operations. This self-service connection method eliminates the need for complex manual assembly procedures while ensuring reliable fixation.
2Manufacturing precision
If manual work is used to combine the outer bag and inner liner, then the combination accuracy is improved, but the production time and labor costs increase
Solution Approach 1:
The connection system is designed to self-align and self-connect through the hook-and-loop mechanism. The geometric design of the connection loops and fixing members ensures proper positioning during assembly, eliminating the need for manual alignment while enabling rapid attachment. This self-service mechanism maintains assembly accuracy while dramatically improving production speed.
3Ease of operation
If the outer bag is flipped inside out for combining, then the ease of operation is improved, but the time consumption and process complexity increase
Solution Approach 1:
Instead of flipping the outer bag inside out to access the connection points, the connection loops are attached to the outer surface of the outer bag, and the fixing members are attached to the outer surface of the inner liner. This inverted approach allows both components to be combined in their normal orientation, eliminating the need for flipping operations while maintaining ease of assembly.
4Reliability
If multiple fixing members are used to combine the outer bag and inner liner, then the reliability of connection is improved, but the device complexity and manufacturing time increase
Solution Approach 1:
The connection loops and fixing members are designed as universal components that can be used at multiple positions around the container bag. The same simple hook-and-loop mechanism is replicated at different locations rather than using different types of fasteners, which maintains connection reliability through multiple attachment points while avoiding the complexity of multiple different fixing systems.
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 solution improves economic feasibility and reusability by simplifying the manufacturing process, reducing manual labor, and ensuring stable, damage-resistant, and contamination-free separation of the outer bag and inner liner.
Implementation Method 1
connection loops made of elastic material that are triply bent to secure the inner liner
Data Source
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AI summary
To improve economic feasibility of production and reusability, the present invention provides a container bag(100) for powder materials including: an outer bag (10) formed of a woven fabric made of a synthetic resin material; an inner liner (20) inserted into hollow type accommodating portion (90) to seal the powder from the outside and accommodate the powder; and a plurality of connection loops (31) formed in a loop form made of an elastic material and, to fix the inner liner (20) to a relative position in an inner space of the hollow type accommodating portion (90), each having one end connected to an outer surface portion of the inner liner (20) and the other end bent after passing through a through-gap (18) in an interspace of the woven fabric forming the outer bag (10) and doubly bent additionally by being inserted and withdrawn through a combining gap (19) formed to be spaced from the through-gap (18) so that the plurality of connection loops (31) are fixed by being pressed and stretched together as the withdrawn end portion is stretched.