Tailgate Securing Assembly with Anti-Rotation Strap
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Solution Overview
Problem
Existing tailgate securing systems are inadequate in preventing unauthorized removal, as they can be easily disengaged by individuals without proper authorization, posing a security risk, especially when the tailgate is in secondary or open positions.
Innovation Solution
A tailgate securing assembly comprising a strap and a fastener that circumferentially surround the pivot axis, with a cupped member and pivot pin configuration that requires additional time and effort to disengage, combined with an anti-rotation feature to secure the tailgate to the cargo bed, making unauthorized removal more difficult.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple cable system is used to hold the tailgate in secondary positions, then the ease of operation is improved, but the security against unauthorized removal deteriorates
Solution Approach 1:
The securing system is divided into multiple independent components: a strap with first and second legs, a separate fastener, and a cupped member with opening. This segmentation allows the system to provide both ease of operation (simple individual components) and security (complex assembly required for removal)
Solution Approach 2:
The strap is positioned within the cupped member, with the fastener securing the strap to the cupped member. The nested configuration creates a multi-layer securing mechanism where the strap blocks radial movement of the pivot pin while the fastener prevents strap removal, enhancing security without complicating operation
2Reliability
If a secure tailgate attachment system is implemented, then the security is improved, but the device complexity increases
Solution Approach 1:
The fastener is extracted as a separate removable component from the main securing structure. This allows the security function to be provided by the integrated strap-cupped member assembly while the fastener can be independently removed by authorized users, maintaining security without permanent complexity
Solution Approach 2:
The strap's U-shaped configuration with spaced legs automatically positions itself around the cupped member when installed. The anti-rotation feature on the strap self-aligns with the cupped member, reducing the need for complex alignment mechanisms or adjustment procedures
3Ease of operation
If the strap legs are spaced apart to allow installation, then the ease of operation is improved, but the structural strength deteriorates
Solution Approach 1:
The distance between the first and second legs of the strap is designed to be greater than the diameter of the cupped member, allowing the legs to dynamically spread apart during installation and then converge when secured. This dynamic behavior enables easy installation while maintaining structural integrity when the fastener is engaged
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 effectively deters unauthorized removal of the tailgate by requiring additional time and effort to disengage the securing assembly, providing enhanced security and stability, especially when the tailgate is in secondary or open positions.
Implementation Method 1
a fastener moveable to an engaged position with the strap. The fastener in the engaged position extends through a first aperture in the first leg to threadably engage a second aperture in the second leg
Data Source
AI summary
An assembly for securing a tailgate to a cargo bed includes, among other things, a strap having a first leg spaced from a second leg, and a fastener moveable to an engaged position with the strap. The fastener in the engaged position extends through a first aperture in the first leg to threadably engage a second aperture in the second leg. When the fastener is in the engaged position, the fastener and the strap are configured to secure a tailgate to a cargo bed.