Tonneau Cover Latch Assembly with Orthogonal Button-Slider Mechanism
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Solution Overview
Problem
Existing tonneau cover latch assemblies are often complex and difficult to operate, requiring simultaneous opposing movements that can be awkward for users, especially those unfamiliar with the system or without two free hands, and are costly to produce due to their numerosity of components and complexity.
Innovation Solution
A latch assembly featuring a button and slider mechanism with a housing that directs movement along orthogonal axes, utilizing a biasing member to facilitate intuitive operation and reduce component complexity, allowing the button to be moved in an unlatching direction while the slider moves correspondingly, with a direct or indirect latching interface for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional latch assemblies require simultaneous opposing movements (pulling down on handle while pushing up on cover), then the latching function is achieved, but the ease of operation deteriorates due to awkward multi-hand coordination
Solution Approach 1:
The patent combines multiple operational actions into a single button movement. The button simultaneously actuates the slider to disengage the latch and triggers the cover to open, eliminating the need for coordinated two-hand operations. This merging of functions directly improves ease of operation while the integrated design keeps device complexity manageable.
Solution Approach 2:
The latch assembly is designed so that pressing the button automatically initiates the unlatching sequence without requiring the user to manually coordinate multiple actions. The system self-actuates through the mechanical connection between the button, slider, and latch components, reducing the cognitive and physical burden on the operator.
2Ease of manufacture
If traditional latch assemblies use multiple components and complex constructions, then the latching function is achieved, but manufacturing costs increase due to higher raw material, forming, machining, and assembly expenses
Solution Approach 1:
The patent integrates multiple latch components into a unified assembly where the button, slider, and latch mechanisms work together as a coordinated system. This merging reduces the total number of discrete parts, simplifies manufacturing processes, and lowers assembly complexity while maintaining reliable latching function.
Solution Approach 2:
The button serves multiple functions: it actuates the slider, triggers the latch release, and initiates the cover opening sequence. This multi-functionality reduces the need for separate components for each function, thereby simplifying the overall device structure and reducing manufacturing costs.
3Ease of operation
If latch assemblies require unfamiliar users to perform simultaneous opposing movements, then the latching function works, but the ease of operation deteriorates for unfamiliar users and those without two free hands
Solution Approach 1:
The single-button design makes the operational sequence self-evident and automatic. Users simply need to press the button, and the system handles the rest of the unlatching process automatically. This eliminates the need for users to learn or remember complex coordination sequences, making the system intuitive for all users regardless of familiarity.
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 latch assembly provides an intuitive and user-friendly operation by simplifying the movement required to open and close the tonneau cover, reducing production costs through reduced component complexity and enhancing usability for both familiar and unfamiliar users.
Implementation Method 1
The latch assembly comprises a biasing member located between the housing and the button, which is movable with respect to the housing; and wherein the biasing member biases the button along the first axis
Data Source
AI summary
A latch assembly for a tonneau cover. The latch assembly includes a button and a slider. The slider is movably coupled to the button. Movement of the button in a first direction causes the slider to move in an unlatching direction. Movement of the button in a second direction causes the slider to move in a latching direction.