Peelable Container Seal With Overhanging Removal Tab
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Solution Overview
Problem
Traditional inner seals on containers are difficult for elderly users to remove without pinching or using sharp objects, posing safety risks.
Innovation Solution
A peelable inner seal with a central body and overhanging portion, incorporating a stiffening structure that allows for easy removal by flicking with a finger or hand, eliminating the need for pinching or sharp objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional inner seals are designed without integral tabs or with simple tabs, then manufacturing is simpler and material usage is reduced, but removal becomes difficult requiring pinching or sharp objects
Solution Approach 1:
The seal is divided into distinct functional zones: a central body portion for sealing and an overhanging peripheral portion for removal. This segmentation allows the seal to maintain simplicity in its central structure while adding a dedicated removal mechanism at the periphery, resolving the contradiction between manufacturing simplicity and ease of removal.
Solution Approach 2:
The invention transitions from a two-dimensional flat seal to a three-dimensional structure with an overhanging portion that extends beyond the container rim. This dimensional extension creates a removable tab that can be grasped and pulled, enabling easy removal without requiring complex pinching motions or sharp objects.
2Device complexity
If inner seals require pinching or using sharp objects for removal, then the seal structure remains simple, but user safety deteriorates and accessibility for elderly users is reduced
Solution Approach 1:
The overhanging portion serves as an intermediary element between the user and the sealed container opening. Instead of requiring the user to directly manipulate the sealed portion with pinching or sharp objects, the overhanging portion acts as a safe intermediary that can be easily grasped and pulled, eliminating the need for dangerous removal methods.
Solution Approach 2:
The seal design incorporates a self-service removal mechanism where the overhanging portion automatically provides a safe and easy removal path. The seal structure itself creates the removal mechanism through its overhanging design, eliminating the need for external tools or complex user actions without compromising safety.
3Ease of operation
If inner seals are made with stiffening structures, then ease of removal by flicking is enabled, but manufacturing complexity and material requirements increase
Solution Approach 1:
The stiffening structure is applied locally only to the overhanging peripheral portion rather than the entire seal. This localized reinforcement provides the necessary rigidity for flicking removal while keeping the central sealing portion flexible and simple, thereby enabling easy removal without excessive overall complexity.
Solution Approach 2:
The seal employs composite construction combining flexible sealing materials with stiffening elements in the overhanging portion. This composite approach allows the seal to have different mechanical properties in different regions: flexibility for sealing and rigidity for removal, resolving the contradiction between ease of removal and structural simplicity.
Data Source
AI summary
A peelable seal having one or more layers for sealing containers by heat sealing may include a stiffening structure, a foil portion, and a sealant structure. The stiffening structure of the seal includes an outer periphery or overhanging portion which extends beyond the rim of a neck of a container thereby allowing the peelable seal to be loosened from the container by flicking the overhanging portion of the peelable seal with a portion of the hand and without the need to pinch the seal.