Double-Walled Tube Segmentation for Squeezing Stability
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Solution Overview
Problem
Existing squeezable product packages that are designed to stand upright often struggle to dispense products easily due to their self-standing design, making it difficult for users to access the contents.
Innovation Solution
A double-walled tube design featuring a flexible outer and inner wall structure with strategically placed openings for deformation allows the package to be squeezed, enabling easy product dispensing while maintaining self-standing capability through a combination of annular ring connections and tapered configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the package is designed to stand upright with a self-standing structure, then the package can prevent accidental spills and aid consumer use, but the package becomes difficult to squeeze for product dispensing
Solution Approach 1:
The tube is divided into an outer wall and an inner wall, creating a segmented structure. The outer wall provides the self-standing capability while the inner wall contains the product. This segmentation allows the outer wall to maintain structural stability for standing upright while the inner wall can be independently compressed for product dispensing without compromising the outer wall's stability.
Solution Approach 2:
The inner wall is nested within the outer wall, forming a double-walled structure. The inner wall is positioned inside the outer wall such that the outer wall's annular base provides support for standing upright, while the inner wall can be squeezed independently to dispense product. This nesting arrangement resolves the contradiction by allowing the outer structure to maintain stability while the inner structure enables easy operation.
2Stability of the object's composition
If the package structure is made rigid to maintain upright position, then stability is improved, but flexibility for squeezing is reduced
Solution Approach 1:
By segmenting the tube into outer and inner walls with different structural characteristics, the outer wall can be designed with greater rigidity at its annular base for stability, while the inner wall can be designed with appropriate flexibility for squeezing. This segmentation allows different parts of the system to have different mechanical properties optimized for their specific functions.
Solution Approach 2:
The outer wall features an annular base with increased rigidity localized at the bottom portion to provide self-standing capability, while the upper portions of both outer and inner walls maintain flexibility for squeezing. This local quality variation allows the structure to be rigid where needed for stability and flexible where needed for operation.
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 design allows for effortless product dispensing by flexing the outer wall inwardly to compress the inner wall, preventing accidental spills and ensuring the package remains upright, enhancing user convenience.
Implementation Method 1
both the outer wall and the inner wall are flexible. Squeezing the outer wall toward the inner wall flexes the inner wall inwardly
Implementation Method 2
Openings for deformation are provided in the outer wall
Data Source
AI summary
A double-walled tube for dispensing product includes an inner wall, an outer wall positioned around the inner wall, and an opening defined by the inner wall. The inner wall and outer wall are flexible to dispense product held within the inner wall through the opening when the inner wall and outer wall are flexed.