Automatic Tonneau Cover Latch via Linkage Actuation
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Solution Overview
Problem
Tonneau cover systems for trucks often require multiple manual latches for additional security, making them cumbersome and less likely to be consistently used due to the need for manual operation when opening and closing.
Innovation Solution
Incorporating automatic latches that are actuated by the movement of the tonneau cover between closed and open positions, eliminating the need for manual operation by using latch actuators anchored to latch-rearward rectangular elements, which automatically latch and unlatch as the cover is rolled up or folded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple intermediate latches are added to provide additional security, then security against unauthorized access is improved, but the operation becomes cumbersome and complex
Solution Approach 1:
The latch system is designed to automatically engage and disengage intermediate latches during the opening and closing operations. The movement of the tonneau cover itself activates the latch mechanisms through linkage arms and actuating arms, eliminating the need for manual intervention. This self-service mechanism maintains security while avoiding operational complexity.
Solution Approach 2:
The latch mechanisms are pre-positioned and spring-loaded to automatically engage at specific points during the closing operation. The preliminary positioning of latch components ensures that security is established automatically as the cover approaches the closed position, without requiring manual activation.
2Reliability
If manual latches are used for each rectangular element, then security is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
Multiple individual latch mechanisms are merged into a unified automatic latch system. The linkage arms and actuating arms connect multiple latch points, allowing them to operate simultaneously through a single automated mechanism rather than requiring separate manual operations for each latch.
Solution Approach 2:
The automatic latch system serves multiple functions: it provides security at multiple intermediate points, automatically engages during closing, and disengages during opening. The same mechanism handles both security and operational requirements across all rectangular elements, reducing overall system complexity.
Data Source
AI summary
A tonneau cover has rectangular elements pivotally connected together. An automatic latch can be coupled to a first rectangular element end of one of the rectangular elements. A latch actuator can extend from the automatic latch to a first latch-rearward rectangular element. The first latch rearward element can be rearward of the first rectangular element end. Movement of the first latch-rearward rectangular element relative to the first rectangular element end, as the tonneau cover moves between closed and open positions, can move the latch actuator which moves the first automatic latch between the latched and unlatched configurations, respectively.