Angled Fastener Fields for Panel Tension and Shear Resistance
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Solution Overview
Problem
Current fastening devices for securing panels, such as tonneau covers, often experience premature engagement and damage due to the panel being pulled tight, leading to movement and impact-related issues, and are prone to deformation and separation over time.
Innovation Solution
A fastening device with a base featuring a first fastening field with elements extending in one direction and a second field with elements angled in a different direction, divided by a line, allowing for secure attachment and sliding of the panel without premature engagement, using a mating fastener material to secure the panel to both fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the panel is pulled tight to secure it properly, then the panel coverage and tension are improved, but the fastening device experiences premature engagement and movement relative to the holder
Solution Approach 1:
The fastening device is divided into multiple independent fastening elements (first and second fastening fields with multiple fastening elements each) that can engage separately. This segmentation allows the panel to be secured progressively without causing premature movement of the entire fastening device relative to the holder.
2Strength
If the fastening device uses flexible material to absorb impact loads, then the device can withstand deformation, but it becomes prone to separation between portions and damage over time
Solution Approach 1:
The fastening elements are designed with controlled flexibility that allows them to dynamically absorb impact loads through elastic deformation while maintaining overall structural integrity. The elements can flex during impact events but return to their original position, preventing permanent deformation and separation.
3Device complexity
If the fastening elements are arranged in a single direction to simplify the design, then the device complexity is reduced, but the panel cannot be securely fastened in multiple directions and is prone to separation
Solution Approach 1:
The fastening device employs asymmetric arrangements of fastening elements in two different directions (first fastening field with elements in a first direction, second fastening field with elements in a second direction). This asymmetric multi-directional configuration provides secure attachment capability in multiple directions while maintaining a relatively simple overall device structure.
Data Source
AI summary
A fastening device includes a base including a top surface; a first fastening field extending from the top surface of the base and including a plurality of first fastening elements, each of the first fastening elements including a fastening feature, the fastening feature of at least some of the first fastening elements extending in a first direction; and a second fastening field extending from the top surface of the base and comprising a plurality of second fastening elements, each of the second fastening elements including a fastening feature, the fastening features of all of the second fastening elements extending in a second direction that is angled with respect to the first direction, the second fastening field divided from the first fastening field by a dividing line.