Flexible Pouch Smooth Side Edge Folding Mechanism
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Solution Overview
Problem
Existing flexible pouches have uncomfortable sealed edges that can be harsh for consumers to hold, as they often feature sharp corners and cusps, which can cause discomfort during use.
Innovation Solution
A flexible pouch design with smooth edges is created by folding over portions of the container onto itself and securing them with adhesive, forming a rounded surface for consumer interaction, and using a machine with a progressive plow and press mechanism to align and apply adhesive for secure sealing without creasing the laminate material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional sealing methods are used to seal the flexible pouch, then the pouch can be manufactured efficiently, but the sealed edges create sharp corners and cusps that are uncomfortable for consumers to hold
Solution Approach 1:
The patent applies curvature by folding the sealed edge over onto itself to create a rounded profile. The fold line is positioned inward from the sealed edge, and the material is folded back parallel to the sealed edge, creating a curved surface that eliminates sharp corners and cusps while maintaining the sealed integrity of the pouch.
2Shape
If the pouch is folded over to create smooth edges, then consumer comfort is improved, but the laminate material may be creased or damaged
Solution Approach 1:
The patent performs preliminary actions by first positioning a fold line inward from the sealed edge, then folding the material along this predetermined line before final assembly. This preliminary folding action ensures that the fold occurs in a controlled manner on a single layer of material, preventing creasing and damage that would occur if folding attempted to happen on multi-layer stacked material.
Solution Approach 2:
The patent applies different structural qualities to different parts of the pouch. The body of the pouch maintains its conventional sealed construction, while only the edge portion is modified with the fold-over structure. This localized modification allows the smooth edge feature to be applied only where consumer contact occurs, without altering or risking damage to the overall laminate integrity of the pouch body.
3Shape
If the sealed edge is folded over and secured to the front or back panel, then a smooth side is formed, but additional adhesive application steps are required
Solution Approach 1:
The patent merges the folding operation with the adhesive application process. The fold line is positioned and established first, then adhesive is applied to the folded-back portion as it is being positioned or immediately thereafter. This merging of operations allows the fold-over structure to be created and secured in an integrated manner, reducing the need for separate discrete steps and simplifying the overall manufacturing process.
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 provides a more comfortable and ergonomic interface for consumers, reducing stress on the sealed edges and maintaining the integrity of the laminate material, allowing for a more upright and free-standing container with a taller, skinnier design.
Implementation Method 1
A self adhesive material, such as glue or tape, is applied to an exterior surface of either the front or back panel in an area where it is anticipated the sealed side edge will abut the exterior surface when the container is folded along a predetermined fold line.
Data Source
AI summary
The present invention relates to a container having consumer friendly sides. The container has a front panel and a back panel, each having an exterior surface. A side sealed portion of the container is folded over and secured to the exterior surface of container. The side sealed portion having at least one angled portion. Securing the side sealed portion to the exterior surface of the container forms a smooth side with the portion of the container that is folded over, or flexed, to allow the side sealed portion to be secured to the front or back panel. A method for forming the container assembly, and a machine for manufacturing the container assembly are also disclosed.