Rotary Tailgate Latch System with Push Button Actuation
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Solution Overview
Problem
Older pickup trucks lack a convenient and aesthetically pleasing mechanism for opening and closing tailgates, relying on chains and hooks, making them difficult to operate compared to modern trucks.
Innovation Solution
A tailgate latch system featuring a rotary latch mechanism with a push button and rotatable rod that engages and disengages striker pins, allowing for easy operation while maintaining a classic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a chain and hook is used to latch the tailgate, then the tailgate can be secured closed, but the operation becomes difficult and the appearance becomes aesthetically pleasing
Solution Approach 1:
The patent removes the chain and hook from the tailgate system and replaces it with a rotary latch mechanism that integrates into the tailgate structure. The rotary latch with push button provides a clean, modern operation while maintaining the classic appearance, directly addressing the contradiction by extracting the problematic chain and hook while preserving latching reliability.
Solution Approach 2:
The patent replaces the traditional chain and hook mechanical system with a rotary latch mechanism that uses a rotatable rod and push button interface. This substitution maintains the latching function through a different mechanical approach, improving ease of operation while preserving reliability through the engaged/disengaged states of the rotary latch.
2Reliability
If a chain and hook is used to latch the tailgate, then the tailgate can be secured closed, but the appearance becomes aesthetically pleasing
Solution Approach 1:
The patent removes the chain and hook from the tailgate system and replaces it with a rotary latch mechanism that integrates into the tailgate structure. The rotary latch with push button provides a clean, modern operation while maintaining the classic appearance, directly addressing the contradiction by extracting the problematic chain and hook while preserving latching reliability.
Solution Approach 2:
The patent introduces a dynamic rotary latch mechanism that can rotate between engaged and disengaged positions, providing both functional reliability and aesthetic appeal. The rotatable rod with push button interface creates a sleek, moving component that enhances the tailgate's appearance while maintaining secure latching when engaged.
3Ease of operation
If a rotary latch mechanism with push button is used, then the operation becomes easy and appearance is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into the rotary latch mechanism: the rotatable rod serves as both the latching element and the actuation mechanism, the push button integrates the activation interface, and the spring consolidates the return function. This merging reduces the number of separate components needed while maintaining ease of operation, thereby managing device complexity.
Solution Approach 2:
The rotary latch mechanism performs multiple functions through a single integrated system: it provides latching, unlatching, and visual indication through the rotatable rod's position changes. The push button serves both as an activation mechanism and a user interface element, while the spring provides both return force and positioning. This multi-functionality reduces overall system complexity despite the sophisticated operation.
Data Source
AI summary
A tailgate latch system is described. The tailgate latch system may comprise an actuatable button located on a pickup truck tailgate, at least one rotatable rod located in the tailgate interior that is configured to rotate clockwise or counterclockwise upon actuating the button and a rotary latch that is configured to disengage a bedside striker pin upon rotation of the at least one rotatable rod.