Slim Venetian Blind Top Element with Rotatory Tilt Mechanism
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Solution Overview
Problem
Traditional Venetian blind mechanisms often result in a bulky top element due to the diameter of the tilting wheel, which limits the aperture for light admittance and is mechanically complex, making it less flexible for user operation.
Innovation Solution
A slim top element design featuring a rotatory member with an axis parallel to the height direction, interacting with a second assembly member that moves between end positions to rotate the rotatory member, utilizing a rack and pinion mechanism to minimize height and enhance operational simplicity, allowing for tilting slats with reduced mechanical complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional tilting wheel mechanism is used, then the slats can be tilted effectively, but the top element becomes bulky and complex
Solution Approach 1:
The patent extracts the essential tilting function from the complex traditional wheel mechanism. Instead of using a complete wheel with circumference, it employs a segmented tilting mechanism where individual tilting elements are distributed along the top element, each handling a portion of the slat tilting task. This extraction reduces overall mechanical complexity while maintaining operational effectiveness.
Solution Approach 2:
The tilting mechanism is divided into multiple independent tilting elements arranged along the top element. Each tilting element can operate independently to tilt adjacent slats, rather than relying on a single large wheel. This segmentation allows for a slimmer profile and reduced mechanical complexity while preserving the ability to tilt all slats effectively.
2Ease of operation
If a traditional tilting wheel mechanism is used, then the slats can be tilted effectively, but the top element height increases
Solution Approach 1:
The patent transitions from a circumferential wheel-based tilting mechanism to a linear arrangement of tilting elements along the longitudinal axis of the top element. By changing the dimensional approach from rotational (wheel circumference) to linear (distribution along length), the mechanism achieves the same tilting function with reduced height, allowing the top element to maintain a slim profile.
3Area of stationary object
If a slim top element design is used, then light admittance is increased, but the mechanism for tilting slats becomes more constrained
Solution Approach 1:
The patent applies local quality by distributing multiple specialized tilting elements along the top element, each optimized for its local position. Instead of one complex centralized mechanism, each local tilting element is simple and tailored to its specific location, enabling effective slat tilting within the constrained slim profile while maximizing light admittance through the reduced top element height.
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 reduces the height of the top element, maintaining flexibility in light regulation while simplifying the tilting mechanism, allowing for easier operation and increased light admittance without compromising the screening functionality.
Implementation Method 1
utilizing a rack and pinion mechanism to minimize height and enhance operational simplicity
Data Source
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AI summary
The invention relates to a screening arrangement comprising a plurality of tiltable slats adapted to at least partly screening the aperture of the frame, and a tilt cord in connection with said slats, a mechanism in connection with said tilt cord in order to tilt said slats between a first and a second predetermined position, wherein said tilt cord being connected to a rotatory member accommodated in said top element, which rotatory member has an axis of rotation being substantially parallel to the height direction of said top element.