Blind with Selective Tilting Drums for Double Pitch Configurations
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Solution Overview
Problem
Conventional Venetian blinds lack the ability to selectively tilt open or close specific portions independently, limiting light control and privacy options, and do not provide an aesthetically pleasing pleated look when closed.
Innovation Solution
The development of a blind system with drum portions and tilt cables/actuator cords that allow for the tilting of entire blinds or selective tilting of blind portions, enabling double pitch configurations, room-side up or down orientations, and a pleated look by using co-axial, parallel, or variable radius wrap drum mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If standard width slats are used with adjacent pairs moving together to stack against each other when tilted open, then the open area between adjacent pairs of slats is doubled (double pitch arrangement), but the ability to selectively tilt open or close specific portions of the blind is lost
Solution Approach 1:
The blind is divided into multiple independently controllable sections or zones. Each section has its own tilt mechanism that can be operated separately, allowing different portions of the blind to be tilted open or closed independently. This segmentation enables selective tilting while maintaining the double pitch configuration in each section.
Solution Approach 2:
The blind system incorporates dynamic control mechanisms that allow the tilt angle and tilt state of each section to be adjusted independently in real-time. This dynamic capability enables the blind to adapt to different lighting and privacy requirements by selectively tilting specific portions while maintaining double pitch in other areas.
2Object-affected harmful factors
If the entire blind is tilted closed to block light and provide privacy, then light control and privacy are improved, but the ability to allow natural light and ventilation is reduced
Solution Approach 1:
The blind is divided into multiple independently controllable sections or zones. Each section has its own tilt mechanism that can be operated separately, allowing different portions of the blind to be tilted open or closed independently. This segmentation enables selective tilting while maintaining the double pitch configuration in each section.
Solution Approach 2:
Different sections of the blind can have different tilt states tailored to specific local requirements. For example, the lower portion can be tilted closed to block glare on computer screens or provide privacy, while the upper portion remains tilted open to allow natural light and ventilation. Each section's tilt state is optimized for its specific function.
3Shape
If slats are tilted in alternating directions to create a pleated look, then aesthetic appeal is improved, but the complexity of the tilt mechanism increases
Solution Approach 1:
The mechanism for creating alternating tilt directions is integrated into the existing tilt mechanism rather than being a separate system. The drum mechanism and cable arrangement are designed to naturally produce alternating tilt patterns when rotated, combining the aesthetic function with the basic tilt operation. This merging approach achieves the pleated look without significantly increasing overall mechanism complexity.
Data Source
AI summary
A tilter system for a window blind permits the slats of the blind to be tilted open or closed in a number of different configurations, including a double pitch configuration, depending on the routing of tilt cables or actuator cords.