Twisted Paper Cushioning for Shock Absorption
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Solution Overview
Problem
Current cushioning products for parcel shipments, such as those made of plastic or paper, pose environmental concerns due to non-biodegradability and complex recycling processes, and existing machines are inefficient for using low-end recycled paper.
Innovation Solution
A cushioning product made from crumpled and twisted rectangular sheets of paper, which can be recycled, and a simplified converting machine that crumples and twists sheets without the need for glue, allowing for the use of any paper quality, including recycled paper, to create a three-dimensional structure with improved mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If plastic materials are used for cushioning products, then shock absorption performance is improved, but environmental friendliness deteriorates due to non-biodegradability
Solution Approach 1:
The patent changes the material parameter from plastic to paper, transforming the cushioning product into a biodegradable alternative that maintains protective functionality while eliminating environmental harm associated with non-degradable plastics
Solution Approach 2:
The patent employs single-use paper-based cushioning products that are inexpensive, biodegradable, and designed for one-time use, replacing durable but harmful plastic materials with disposable eco-friendly alternatives
2Stability of the object's composition
If glue is used to assemble paper strips into three-dimensional structure, then structural stability is improved, but recyclability deteriorates
Solution Approach 1:
The patent extracts and eliminates the glue component from the traditional paper cushioning structure, achieving structural stability through mechanical interlocking of paper strips alone, thereby enabling complete recyclability without contaminating materials
Solution Approach 2:
The patent divides the cushioning structure into separate paper strip segments that can be easily assembled and disassembled without chemical bonds, allowing the individual strips to be recovered and recycled independently
3Productivity
If complex converting machines are used for manufacturing cushioning products, then production capability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent employs a dynamic manufacturing process where paper strips are fed continuously and transformed through moving mechanical elements (rollers, guides, forming surfaces) that create the three-dimensional cushioning structure in a single pass, maintaining high productivity with simplified equipment
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 recyclable, environmentally friendly cushioning product with enhanced mechanical properties for shock absorption, reducing environmental impact and simplifying the manufacturing process, while enabling the use of low-cost recycled paper.
Implementation Method 1
a crumpling device (4) which crumples the sheet (2) along a median (M) during the conveying of the sheet
Implementation Method 2
a torsion system (6) which twists on the crumpled sheet of paper (2) transversely to the median (M) in the vicinity of the pinching by at least a quarter turn
Data Source
Figure 1~3B
Figure 4A~7B
Figure 8A~11
AI summary
A paper cushioning/padding product (1) is formed from a substantially rectangular sheet material, the material being crumpled along a median and undergoing a transverse twist to this median of at least a quarter turn to present itself as a wrapper.