Curvature-Adjustable Backboard Assembly With Slider-Crank Control
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Solution Overview
Problem
Current curved display devices have fixed curvature, limiting their adaptability to different applications and user preferences, resulting in restricted view angles and inability to adjust for varying observation needs.
Innovation Solution
A curvature-adjustable backboard assembly utilizing a slider-crank mechanism driven by low-speed position-limiting electric machines, allowing for continuous adjustment of the backboard's curvature via a remote control device, enabling varying curvature settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed curved backboard is used, then the structure is simple and stable, but the curvature cannot be adjusted for different applications and user preferences
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed backboard structure into a dynamically adjustable one. The backboard is divided into multiple curved segments that can be independently positioned along curved rails, allowing the curvature radius to be changed according to different applications and user preferences while maintaining structural stability during each fixed position.
Solution Approach 2:
The patent applies segmentation by dividing the backboard into multiple independent curved segments. Each segment can be separately adjusted along its corresponding curved rail, enabling flexible curvature adjustment without requiring the entire backboard structure to be complex and interconnected.
2Adaptability or versatility
If a adjustable curvature mechanism is added, then the adaptability to different viewing conditions is improved, but the device complexity and structural difficulty increase
Solution Approach 1:
The patent replaces complex mechanical adjustment mechanisms with a simpler positioning system. Each backboard segment is equipped with a positioning component that can slide along predetermined curved rails, eliminating the need for complex motors, gears, or hydraulic systems while maintaining easy adjustability for different viewing conditions.
Solution Approach 2:
The patent introduces curved rails as intermediary elements between the backboard segments and the adjustment mechanism. These rails provide guided paths for the positioning components, simplifying the adjustment process by constraining motion to predetermined curved trajectories while allowing easy repositioning of backboard segments.
3Manufacturing precision
If multiple curved segments with positioning components are used, then the curvature adjustment precision is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent applies universality by designing standardized curved rails and positioning components that can be used across different backboard segment configurations. The same rail design and positioning mechanism can serve multiple segments and different curvature requirements, reducing manufacturing complexity and cost while maintaining precise curvature adjustment capability.
Solution Approach 2:
The patent achieves different curvature precisions by changing the geometric parameters of the curved rails rather than redesigning the entire positioning system. By adjusting the radius and shape parameters of the rails, precise curvature control is achieved for different applications while using the same basic manufacturing processes and components.
Data Source
AI summary
The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.