Self-Locking Strap Board Retention Flaps for Loose Tie-Down Hazards
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Solution Overview
Problem
Current tie-down strap securing methods fail to effectively manage extra lengths of tie-down material, leading to unsafe conditions when items are moved by vehicles.
Innovation Solution
A tie-down strap retention device featuring a strap board with retention flaps that form a self-locking structure to secure excess strap material, preventing it from hanging loose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tie-down straps are used to secure items during transportation, then items are held securely in place, but extra unused lengths of tie-down material hang free and create unsafe conditions
Solution Approach 1:
The patent extracts the harmful extra tie-down material from the functional system by providing a dedicated retention structure (flaps and spaces) that separates and contains the unused material, preventing it from hanging freely and creating safety hazards while the tie-down strap performs its primary securing function
Solution Approach 2:
The retention flaps and spaces act as an intermediary structure between the tie-down strap and the environment, capturing and holding the extra material in a controlled manner that eliminates the safety hazard without interfering with the tie-down strap's primary function of securing items
2Reliability
If tie-down straps are used to secure items, then items are held securely, but the device lacks capability to retain extra unused strap lengths
Solution Approach 1:
The patent applies multi-functionality by designing a system where the tie-down strap not only performs its primary function of securing items but also integrates retention flaps and spaces that simultaneously capture and hold extra unused material, making the device capable of both securing and material management functions
3Reliability
If retention flaps form a self-locking structure, then extra strap material is securely retained, but the device structure becomes more complex
Solution Approach 1:
The retention flaps are designed to automatically form a self-locking structure that captures and holds extra tie-down material without requiring additional fasteners, latches, or complex mechanisms, achieving secure retention through the inherent geometry and flexibility of the flap structure itself
Data Source
AI summary
A tie-down strap retention device may have a strap board and a plurality of retention flaps. The retention flaps may form a self-locking structure to retain extra portions of the tie-down strap. A first edge portion may project upwardly from the upper surface of the strap board. A first strap retention section may extend inwardly from the first edge portion toward a center portion of the strap board to form a first space between the strap board and the first flap retention section. A second edge portion may project upwardly from the upper surface of the strap board. A second strap retention section may extend inwardly from the second edge portion toward a center portion of the strap board to form a second space between the strap board and the second flap retention section.