Ribbed Carrier Assembly Anchoring Fasteners in Laminate Structures
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Solution Overview
Problem
Existing devices for anchoring fastening elements in laminate structures lack sufficient stability, particularly in terms of bending strength, which can lead to detachment and delamination issues under load.
Innovation Solution
A carrier assembly with a protruding rib structure that radially surrounds the fastening element, providing high bending strength and anchoring stability by distributing forces effectively and preventing delamination through a combination of rib designs and flared tongues that enhance adhesion and prevent lateral shifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a simple carrier assembly without rib structure is used, then the device complexity is low, but the bending strength and anchoring stability are insufficient
Solution Approach 1:
The patent employs curved rib structures with varying radii of curvature that radially surround the fastening element. The ribs feature convex and concave sections with different curvature radii, creating a three-dimensional arched geometry that significantly enhances bending strength while maintaining structural efficiency
Solution Approach 2:
The carrier assembly is divided into multiple rib structures that radially surround the fastening element. Each rib acts as an independent structural element that contributes to the overall bending strength, allowing the complex structure to be manufactured through segmented processes
2Reliability
If a carrier assembly with rib structure is used, then the anchoring stability is high, but the manufacturing complexity increases
Solution Approach 1:
The patent utilizes varying curvature radii parameters in the rib structures, with specific ranges defined for convex and concave sections. By optimizing these geometric parameters, the design achieves high anchoring stability while considering manufacturability through controlled parameter variations
Solution Approach 2:
The carrier assembly integrates multiple material properties through its composite structure, combining the base material with reinforcing rib structures made of potentially different materials or treatments, achieving high reliability while managing manufacturing complexity
3Stability of the object's composition
If the rib structure radially surrounds the fastening element, then the delamination prevention is improved, but the device complexity increases
Solution Approach 1:
The arched rib structures with varying curvature radii create a three-dimensional geometry that effectively distributes loads and prevents delamination. The convex and concave sections work together to maintain laminate integrity while the radial arrangement provides comprehensive coverage around the fastening element
Solution Approach 2:
The patent combines multiple functions into the rib structure: structural support, load distribution, and delamination prevention. The ribs serve both as bending strength enhancers and as barriers against laminate separation, merging several protective functions into a single integrated feature
Data Source
AI summary
A device for anchoring at least one fastening element in a laminate structure having at least two layers comprises a fastening element, and a carrier assembly on which the fastening element is mounted. The carrier assembly is designed with a protruding rib structure which radially outwardly surrounds the fastening element, resulting in a transmission of force into the laminate structure that is conducive to long-term stability of the anchoring.