Embossed Plastic Strap With Segmented Geometric Pattern
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Solution Overview
Problem
Existing embossed plastic straps lack sufficient mechanical properties, such as strength and bending stiffness, which are essential for effectively securing and bundling products.
Innovation Solution
The development of an embossed plastic strap featuring a raised pattern with a perimeter component and a geometric shape within the perimeter, which enhances mechanical properties by increasing strength and stiffness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional embossed plastic strap designs are used, then manufacturing cost is reduced, but mechanical properties (strength and bending stiffness) are insufficient
Solution Approach 1:
The raised pattern is segmented into multiple geometric shapes (triangles, squares, circles, etc.) arranged in repeating units across the strap surface. This segmentation creates multiple stress distribution zones that collectively enhance overall strap strength while maintaining a systematic manufacturing approach.
Solution Approach 2:
The embossed pattern introduces local variations in surface geometry with different geometric shapes positioned at specific locations. These localized structural modifications create areas of enhanced stiffness and strength without requiring changes to the entire strap structure or material composition, thereby improving mechanical properties while keeping manufacturing straightforward.
2Strength
If thicker plastic strap is used, then mechanical strength is improved, but cost and weight increase
Solution Approach 1:
Instead of uniformly increasing strap thickness, the invention applies localized geometric embossing that creates three-dimensional surface features. These embossed geometric shapes provide structural reinforcement and increased bending stiffness only where needed on the strap surface, maintaining overall lightweight characteristics while achieving enhanced strength.
Solution Approach 2:
The raised geometric patterns introduce curved and angled surfaces that distribute stress more effectively across the strap. The three-dimensional geometry of the embossed shapes creates structural efficiency similar to how curved surfaces in nature provide strength without additional material, thereby improving strength-to-weight ratio.
3Strength
If conventional embossed patterns are used, then manufacturing simplicity is maintained, but bending stiffness is insufficient
Solution Approach 1:
The embossed pattern is divided into discrete geometric shapes (triangles, squares, circles, polygons) arranged in repeating units. This segmentation allows the complex stiffness-enhancing pattern to be created using standard embossing tools and processes, maintaining manufacturing simplicity while achieving the desired mechanical performance.
Solution Approach 2:
The invention varies geometric parameters of the embossed shapes (size, shape type, spacing, arrangement) to optimize bending stiffness. By adjusting these parameters within the embossing process, the pattern complexity is controlled while achieving the required mechanical properties for different application requirements.
Data Source
AI summary
Various embodiments of the present disclosure provide a plastic strap and a method of forming a plastic strap. The plastic strap includes a first side extending across a width of the strap, a second side opposite the first side and extending across the width of the strap, and a thickness extending between the first and second sides. The first side is embossed and includes a base surface and a raised pattern extending from the base surface. The raised pattern defines multiple cells. A first one of the cells is defined by a first perimeter component of the raised pattern and a first geometric component positioned within the first perimeter component so part of the base surface extends between the first perimeter component and the first geometric component.