Double-Walled Paper Cup Insulation via Nested Sleeve
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Solution Overview
Problem
Existing double-walled insulated cups made of paper material face challenges in achieving optimal insulating properties, stability, and ease of fabrication, particularly in stacking and appearance.
Innovation Solution
A double-walled insulated cup design featuring an inner cup with a truncated conical wall and pot-type bottom wall joined by a peripheral edge frame, with an outer sleeve that extends to the bottom edge of the frame, providing increased distance for better insulation, enhanced appearance, and improved stability, and a method for fabrication that simplifies the attachment of the outer sleeve to the inner cup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the outer sleeve is extended to the bottom edge of the peripheral edge frame, then the insulating properties are improved and appearance is enhanced, but the fabrication complexity increases
Solution Approach 1:
The cup is divided into distinct components: inner cup, peripheral edge frame, and outer sleeve. This segmentation allows each component to be optimized independently for its specific function while simplifying the overall assembly process.
Solution Approach 2:
The outer sleeve is designed to nest over the inner cup and peripheral edge frame structure. This nested configuration maximizes insulation distance while maintaining a compact form factor and simplifying assembly through a single sliding motion.
2Area of stationary object
If the outer sleeve is extended to the bottom edge of the peripheral edge frame, then the printable surface area is increased, but the device complexity increases
Solution Approach 1:
The outer sleeve extends vertically to the bottom edge of the peripheral edge frame, utilizing the vertical dimension to maximize printable surface area without increasing horizontal footprint or overall device complexity.
3Stability of the object's composition
If the peripheral edge frame is stiffened by the outer sleeve, then the stability is improved, but the fabrication complexity increases
Solution Approach 1:
The outer sleeve is designed to rest against and contact the peripheral edge frame, merging the structural support function into a single component rather than requiring separate stiffening elements. This contact provides stabilization while maintaining fabrication simplicity.
4Strength
If the outer sleeve is attached to the peripheral edge frame, then the firmness of the base is improved, but the ease of manufacture decreases
Solution Approach 1:
The outer sleeve's own weight and structural design enable it to automatically rest against and attach to the peripheral edge frame during assembly, providing firmness without requiring additional attachment mechanisms or complex manufacturing steps.
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 enhances insulating properties, stability, and ease of fabrication, allowing for improved stacking and a larger printable surface while maintaining a pleasing shape, with the outer sleeve's attachment method providing a secure and stable connection.
Implementation Method 1
an increased distance can be achieved between the inner cup and the outer sleeve in a double-walled insulated cup, which results in improved insulating properties thereof
Data Source
AI summary
A double-walled insulated cup of paper material having an outer sleeve and an inner cup with a truncated conical wall and a bottom wall interconnected by a peripheral edge frame. The inner cup has a top shoulder and a bottom shoulder and the outside diameter of the inner cup at the level of the top shoulder increases toward the top edge of the inner cup. The outer sleeve lies against the inner cup in the region of the top shoulder thereof and extends to the bottom edge of the peripheral edge frame. The outside diameter of the outer sleeve at the level of the bottom edge of the peripheral edge frame is smaller than the inside diameter of the inner cup just above the bottom shoulder and is greater than the inside diameter of the inner cup just below the bottom shoulder.