Multi-Rib Closure with Pre-Formed Openings for Simplified Assembly
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Solution Overview
Problem
Existing methods for producing multi-rib closures for flexible packaging require feeding and aligning multiple strips, which is complex and inefficient, whereas simplifying this process by using a single strip with pre-formed openings or lines of weakness could streamline production.
Innovation Solution
A multi-rib closure strip with two sets of mating elements and pre-formed oval or rectangular openings between them, allowing for easier alignment and interlocking, and optionally incorporating score lines for simplified registration and reduced manufacturing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple separate zipper strips are fed and aligned to create multi-rib closures, then the closure functionality is achieved, but the manufacturing process becomes complex and inefficient
Solution Approach 1:
The patent combines multiple separate zipper strips into a single integrated strip containing all rib structures. This merging eliminates the need for feeding and aligning multiple separate strips during manufacturing, directly resolving the contradiction by simplifying the manufacturing process while maintaining the multi-rib closure functionality through the integrated design of the single strip.
Solution Approach 2:
The single strip is segmented into multiple distinct rib structures that function as separate closure elements. Each rib is a discrete segment within the unified strip, allowing the closure to perform multiple sealing functions while being manufactured as one piece, thus achieving both structural complexity and manufacturing simplicity.
2Manufacturing precision
If two separate closure strips are used to create multi-rib zipper, then the closure effect is achieved, but the alignment and feeding process becomes more difficult
Solution Approach 1:
By merging multiple closure strips into one integrated strip with all rib structures, the patent eliminates the alignment and feeding operations required for separate strips. The single strip feeds directly into the sealing mechanism without requiring precise alignment of multiple components, simultaneously improving manufacturing precision and ease of operation.
3Adaptability or versatility
If openings are formed between rows of mating elements, then product access is enabled, but additional manufacturing steps are required
Solution Approach 1:
The openings between the rows of mating elements are pre-formed during the strip manufacturing process itself, rather than being created as a separate subsequent step. This preliminary action integrates the opening formation into the primary manufacturing operation, enabling product retrieval capability while maintaining production process simplicity.
Data Source
AI summary
The present disclosure relates to spaced multi-rib zippers, reclosures or closures for flexible packaging, wherein openings or lines of weakness are created between rows of mating elements.