Adjustable Roller Blind Bottom Bar for Horizontal Alignment
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Solution Overview
Problem
Existing roller blind systems often face challenges in ensuring horizontal alignment of bottom bars when multiple blinds are mounted end to end, requiring cumbersome adjustments or disassembly to achieve proper alignment.
Innovation Solution
An adjustable bottom bar design featuring a longitudinal body with a channel and spacers that can be inserted between the stopper and the upper surface, allowing for vertical adjustment to align the bottom bars with the roller tube, enabling easy alignment without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the bottom bar is fixed in position during installation, then the structure is simple and easy to manufacture, but the bottom bars of adjacent blinds cannot be horizontally aligned
Solution Approach 1:
The bottom bar incorporates a hollow interior that allows it to be dynamic in position rather than fixed. The bar can be adjusted vertically by inserting or removing spacers, transforming it from a static component to an adjustable one. This enables horizontal alignment of adjacent blinds while maintaining structural simplicity.
Solution Approach 2:
The bottom bar is divided into separable components: the longitudinal body, the stopper, and removable spacers. This segmentation allows the spacers to be inserted or removed independently to adjust the elevation of the bottom bar, enabling precise horizontal alignment without redesigning the entire structure.
2Manufacturing precision
If the bottom bar is disassembled to adjust fabric length for alignment, then horizontal alignment can be achieved, but the adjustment process is time-consuming and complex
Solution Approach 1:
The spacers are pre-positioned within the hollow interior of the bottom bar during manufacturing. During installation, the desired elevation is achieved by simply inserting or removing pre-sized spacers, rather than disassembling the bottom bar and adjusting fabric length. This preliminary preparation of adjustment components dramatically reduces installation time.
Solution Approach 2:
The adjustment function is extracted from the bottom bar structure itself and implemented through separate, removable spacers. This allows the bottom bar to maintain its simple longitudinal structure while enabling quick elevation adjustments by adding or removing spacer components, avoiding time-consuming disassembly and fabric adjustment.
3Adaptability or versatility
If the bottom bar structure is simplified without internal adjustment mechanisms, then manufacturing is easier, but no elevation adjustment is possible
Solution Approach 1:
The spacers are nested within the hollow interior of the longitudinal body, similar to nested dolls. This nesting allows the adjustment mechanism to be contained within the simple external form of the bottom bar, providing elevation adaptability without increasing the overall structural complexity or external dimensions of the component.
Data Source
AI summary
A bottom bar for a roller blind. The bottom bar has a longitudinal body with an upper surface having a longitudinal channel that is in communication with a generally hollow interior. The channel receives the lower end of the blind fabric to which is secured a stopper to hang the longitudinal body from the fabric. The bottom bar includes one or more spacers receivable within the generally hollow interior and between the stopper and the upper surface of the longitudinal body. The spacers increase the set-off between the stopper and the upper surface of the longitudinal body, thereby lifting the elevation of the longitudinal body relative to the roller tube.