Expandable Panel with Segmented Living Hinges
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Solution Overview
Problem
Existing methods for manufacturing shaped or expandable panels face challenges such as material wastage, distortion, and increased storage and transportation costs due to limited shape possibilities and one-way expansion, which complicates handling and installation.
Innovation Solution
An expandable panel design featuring discrete cuts forming bridging members between living hinges, allowing the panel to expand and retract in specific directions without distortion, with geometric patterns enabling stable expansion and retraction states, reducing material wastage and transportation costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the panel is forced to stretch or pull into shape using existing manufacturing methods, then the panel can be formed into a certain shape, but the panel experiences permanent deformation and distortion along its natural bending plane resulting in a non-planar surface
Solution Approach 1:
The panel is divided into multiple expandable units separated by cuts, allowing each unit to expand independently without forcing the entire panel to deform. This segmentation enables the panel to achieve complex shapes while maintaining local flatness and avoiding permanent deformation of the material.
Solution Approach 2:
The panel transitions from a static flat state to a dynamic expandable state through the use of living hinges and bridging members. The panel can be expanded to form shapes only when required for installation, rather than being permanently deformed during manufacturing, allowing reversible shape changes without distortion.
2Adaptability or versatility
If the panel is expanded in more than one direction (length and width) using existing methods, then the panel can be shaped, but the panel experiences increased distortion and material wastage
Solution Approach 1:
The panel expansion mechanism utilizes the third dimension (depth/thickness) through folded structures and bridging members that rotate about living hinges. This allows the panel to achieve multi-directional expansion and complex shapes while maintaining material efficiency, as the expansion occurs through folding and rotating existing material rather than adding or wasting material.
3Shape
If shaped panels or mesh are stored and transported in their formed state, then the aesthetic and functional shape is preserved, but the space and volume required for transport and storage increases significantly
Solution Approach 1:
The expandable panel can be collapsed into a compact flat state for storage and transport, similar to how nested dolls occupy minimal space. When not in use, the panel folds flat along the cuts and living hinges, reducing its volume dramatically while maintaining the capability to expand into the desired shape when required for installation or display.
4Shape
If shaped panels are manufactured using traditional methods, then the panel can be formed into complex shapes, but the manufacturing cost and complexity increases significantly
Solution Approach 1:
The panel is segmented into modular units with standardized cuts and living hinges, allowing complex shapes to be achieved through simple, repeatable manufacturing steps. Each unit can be manufactured independently using the same cutting and folding processes, reducing overall manufacturing complexity compared to traditional methods that require custom forming for each shape.
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 panel can be easily expanded or retracted, maintaining stability and minimizing material wastage and transportation costs, while allowing for various shapes and flexible storage, handling, and installation without permanent deformation.
Implementation Method 1
discrete cuts 6 extending from the front face to the rear face or rear to front face, the cuts 6 forming bridging members 35 between living hinges 8
Data Source
AI summary
An expandable panel, constructed such that the expandable panel can at least expand in at least one direction, includes a panel having a front face and rear face bordered by side edges, end edges and a thickness dimension extending between the front and rear faces and includes discretely spaced cuts extending from the front face to the rear face or rear to front face. The cuts form bridging members between living hinges and are elongate and extend in a spaced longitudinal manner including at least one cut forming a side of the expandable panel located on one side of the cut, and at least two cuts located on a side of the expandable panel. The at least one cut on side and the other cuts on side together forming at least one pair of lines being substantially parallel, offset mirror images of each other and being intermeshed but not touching.