Refill Container Pouring Nozzle Design for Clog Prevention
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Solution Overview
Problem
Existing refill containers face issues with clogged or bent pouring openings, increased manufacturing costs, and instability during the refill operation, particularly when using flexible packaging bags, which affect the ease and efficiency of refilling and can lead to liquid leakage.
Innovation Solution
A refill container design featuring a lamination body with a sealant layer folded inward to form a bend portion, creating a large pouring opening area without the need for additional plastic components, and incorporating half-cutting lines that break within a specific distance range to prevent rubbing and tearing, ensuring easy and reliable opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing portions are formed at both ends of the pouring opening portion, then the pouring opening is secured, but the opening width is narrowed and the pouring opening becomes clogged or bent easily
Solution Approach 1:
The patent divides the sealing structure into segments by providing only one sealing portion at one end of the pouring opening, rather than sealing both ends. This segmentation approach maintains structural reliability while preserving opening width, preventing the clogging and bending issues that arise from dual-end sealing.
2Reliability
If another member is inserted into the pouring opening portion or deep emboss processing is performed, then the pouring opening stability is improved, but the manufacturing process becomes complex and costly
Solution Approach 1:
The patent extracts the unnecessary sealing portion from the design, eliminating the need for additional members or deep emboss processing. By removing the redundant sealing at one end, the design achieves pouring opening stability through simpler means, reducing manufacturing complexity and costs while maintaining functional reliability.
3Ease of manufacture
If the refill container uses a flexible packaging bag with sealed periphery, then the manufacturing cost is reduced, but the pouring opening becomes clogged or bent during handling
Solution Approach 1:
The patent applies local quality by providing sealing only at the specific location where it is needed (one end of the pouring opening) rather than sealing the entire periphery. This localized sealing approach maintains the cost advantages of flexible packaging while preventing the clogging and bending problems that occur with extensive sealing, ensuring pouring opening functionality is preserved.
Data Source
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AI summary
A refill container includes one sheet of lamination body having a base material and a sealant layer and a pouring nozzle seal portion, where the lamination body is folded such that the sealant layer is arranged inward to form a bend portion, a surface lamination body, and a rear surface lamination body, a peripheral portion of the surface lamination body and the rear surface lamination body is sealed, the bend portion together with the surface lamination body, the rear surface lamination body, and the pouring nozzle seal portion forms a pouring nozzle which pours a content, a tip of the pouring nozzle is sealed by a pouring-nozzle tip seal portion, the pouring-nozzle tip seal portion is detached along an opening line to form a pouring opening, on the opening line and at a peripheral portion of the opening line, an easily cutting processing which forms a plurality of half-cutting lines parallel to the opening line is performed, and the plurality of half-cutting lines is broken at a ridge line of the bend portion.