Snap-Fold Container With Living Hinges
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Solution Overview
Problem
There is a need for packaging designs that are inexpensive, durable, easily assembled, and collapsible for retail and household applications, particularly in areas where storage space is limited, and the containers must protect items from damage during shipping and handling.
Innovation Solution
The development of collapsible containers formed from a single sheet of material with integrated living hinges that allow the containers to expand and hold their shape, featuring a planar bottom surface and sidewalls that can be easily snapped into position, made from materials like polymer plastic, which can be flattened for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the container is made from a single sheet of material with integrated living hinges, then the ease of manufacture and assembly are improved, but the structural complexity is increased
Solution Approach 1:
The patent merges multiple components (sidewalls, bottom surface, and living hinges) into a single integrated sheet of material. This consolidation eliminates the need for separate manufacturing and assembly steps for these components, directly improving ease of manufacture while the integration itself creates the structural complexity that resolves the contradiction.
Solution Approach 2:
The single sheet is segmented into functional regions (sidewalls, bottom, hinges) through strategic placement of living hinges that define fold lines. This segmentation allows the flat sheet to transform into a three-dimensional container structure, enabling easy assembly from a simple flat piece while creating the necessary structural complexity through the hinge configurations.
2Volume of moving object
If the container is designed to be collapsible for space-efficient storage, then the storage space requirement is reduced, but the structural strength is compromised
Solution Approach 1:
The container employs dynamic living hinges that allow the structure to transition between expanded (strong, functional) and collapsed (compact, storage) states. The hinges provide controlled flexibility enabling collapse for space efficiency while maintaining structural integrity when expanded for use, resolving the contradiction between collapsibility and strength.
Solution Approach 2:
The patent uses a flexible single-sheet material with integrated hinges that acts as both the structural shell and the folding mechanism. This flexible construction allows the container to collapse into a compact form for storage while maintaining sufficient strength when expanded, as the continuous material provides structural coherence in both states.
3Reliability
If the container provides protection from impact during shipping and handling, then the reliability is improved, but the weight of the container is increased
Solution Approach 1:
The living hinge design incorporates pre-formed curvature and flexibility that allows the container walls to absorb impact forces through controlled deformation rather than rigid resistance. This beforehand cushioning effect protects contents from impact during shipping and handling while using lightweight material, avoiding the need for heavy protective structures.
Solution Approach 2:
The patent changes the physical parameters of the material by using a flexible polymer with specific hinge geometries that optimize the balance between protection and weight. The hinge design allows the material to exhibit different mechanical properties (flexibility vs. rigidity) depending on the state, providing impact protection without requiring excessive material weight.
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 solution provides a cost-effective, durable, and space-efficient container design that can be easily assembled and disassembled, offering protection for items during handling and storage, while minimizing storage space requirements.
Implementation Method 1
at least three living hinges integrally formed in each of said first, second, third, and fourth sidewalls, wherein the living hinges are positioned in a manner permitting the container to be easily snapped into an assembled position
Data Source
AI summary
The invention disclosed includes various durable containers constructed from sheet materials including a plurality of living hinges. The containers are configured to snap into an assembled position from a relatively flat position by the application of pressure to one or more sidewalls wherein that pressure deforms the one or more sidewalls into a concave position, thereby holding the container into place until the contain is collapsed once again for storage or cleaning.