Double-Layered Container Reducing Residual Contents via Depressed Inner Surface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In double-layered containers, the corner portion of the inner container does not easily expand and deform, leading to insufficient deformation of the lower portion, which results in a larger limit space and increased remaining contents when the inner container decreases in volume.
Innovation Solution
The double-layered container design includes a depressed portion on the inner surface of the outer container, which allows the corner and lower portions of the inner container to displace and form a shape along the inner surface of the depressed portion, reducing the limit space and contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the inner container decreases in volume and deforms with the decrease in contents, then the remaining amount of contents is reduced, but the corner portion does not easily expand and deform, causing the lower portion to be insufficiently deformed
Solution Approach 1:
The patent applies local quality by creating a depressed portion with different geometric properties at the specific location where the corner portion forms. This localized structural modification allows the corner portion to deform more easily along the inner surface of the depressed portion, while other parts of the container maintain their original structural integrity. The depressed portion serves as a localized deformation zone that facilitates content reduction without compromising overall container strength.
2Strength
If the corner portion does not easily deform, then the structural integrity is maintained, but the limit space becomes large and the remaining amount of contents increases
Solution Approach 1:
The patent segments the container structure by introducing a depressed portion that creates a distinct deformation zone. This segmentation allows the corner portion to be treated differently from the rest of the container body - the depressed portion facilitates localized deformation and volume reduction, while the main container structure maintains its structural integrity. This segmented approach enables simultaneous achievement of content reduction and structural strength.
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
This design effectively reduces the remaining amount of contents by minimizing the limit space within the inner container, allowing for more efficient deformation and volume reduction.
Implementation Method 1
the corner portion 112a that constitutes the connection portion 125 of the double-layered container 100, and a lower portion 112b located below the corner portion 112a are displaced around an outer peripheral edge portion 123a of a ground contact portion 123
Data Source
AI summary
A double-layered container including an inner and outer container. A mouth, body and bottom portion respectively extend from top to bottom along a bottle axis. An outside air introduction hole is provided. A diameter of an intermediate portion between an upper and lower end of the body portion is smaller than a diameter of the lower end portion. The intermediate and lower end portions are connected via a step portion. A bottom wall portion includes a ground contact portion and depressed portion. A distance of the outer container inner surface from a connection portion to an outer peripheral edge portion of the ground contact portion in a vertical cross-sectional view along the bottle axis is 1.15 times or less a distance along the outer container inner surface and the bottle axis to an inner peripheral edge portion of the ground contact portion in the vertical cross-sectional view.