Awning Drop Screen Inner Roller Mechanism
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Solution Overview
Problem
Conventional awning structures lack a flexible and efficient mechanism for extending and retracting a drop screen or shade, which limits their functionality and user experience.
Innovation Solution
The awning assembly incorporates a roll bar with a removable and replaceable roller tube portion and an inner roller mechanism featuring a drop end bracket and rotation mount, allowing the screen to be extendable or retractable responsive to rotation of the second roll bar, supported by a tray for even tension and minimizing deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional awning structure is used, then the basic shading function is provided, but the mechanism for extending and retracting a drop screen is lacking, limiting functionality
Solution Approach 1:
The patent implements nesting by placing the second roll bar and screen mechanism inside the first roll bar structure. The inner roller mechanism with the second roll bar is housed within the outer roll bar, allowing the screen to be extended and retracted within the existing awning framework without requiring separate external structures.
Solution Approach 2:
The patent applies dynamics by making the screen mechanism movable and adjustable. The second roll bar rotates to extend and retract the screen, and the slide portions allow vertical movement to accommodate screen tensioning. This dynamic mechanism transforms the static conventional awning into a versatile structure with adjustable shading capabilities.
2Manufacturing precision
If the screen is extended or retracted without proper support, then the screen may become wrinkled or uneven, but adding support structures increases device complexity
Solution Approach 1:
The patent introduces slide portions as intermediary elements between the second roll bar and the first roll bar. These slide portions act as mediators that transmit and distribute the tension forces evenly across the screen width during extension and retraction, preventing wrinkles and ensuring uniform tension without requiring complex external support structures.
Solution Approach 2:
The patent changes the positional parameters of the support mechanism by allowing the slide portions to move vertically along the first roll bar. This parameter change enables the support points to adjust their position dynamically, maintaining optimal screen tension and preventing wrinkles during different stages of screen extension and retraction.
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
This design enables smooth extension and retraction of the screen, maintaining even tension and reducing the risk of wrinkling, enhancing the usability and comfort of the shaded area.
Implementation Method 1
the screen is extendable or retractable responsive to rotation of the second roll bar
Implementation Method 2
maintaining even tension and reducing the risk of wrinkling
Data Source
AI summary
An awning assembly and method of construction comprising a roll bar extending laterally between first and second arms. The roll bar comprising a removable and replaceable roller tube portion defining a wide opening within the roll bar and an inner roller mechanism housed within the wide opening. The inner roller mechanism comprising a drop end bracket rotatably and slidably coupling a second roll bar to the roll bar, the second roll bar extending laterally within the roll bar, a screen supported by the second roll bar, wherein the screen is extendable or retractable responsive to rotation of the second roll bar, and a tray supporting the second roll bar during extension and retraction of the screen, the tray supported by the removable and replaceable roller tube portion.