Sun Protection Curtain Slats Perpendicular Coupling Wind Stability
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Solution Overview
Problem
Existing sun protection curtains are relatively unstable and susceptible to wind, limiting their width and functionality.
Innovation Solution
The coupling section and cavity of sun protection slats are designed to be perpendicular to each other when unwound, allowing for a play-free arrangement that stiffens the slats, enabling greater widths and thinner slat construction, with protrusions and projections ensuring wind resistance and allowing for pivoting movements for easy rolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional roller shutter slats are used, then the curtain can be easily manufactured and installed, but the curtain is unstable and susceptible to wind, limiting its width
Solution Approach 1:
The coupling section is oriented perpendicular to the longitudinal direction of the slat, creating a cross-dimensional connection between adjacent slats. This perpendicular arrangement allows the coupling section to extend in the transverse direction while the slat body extends in the longitudinal direction, forming a grid-like structure that resists wind forces from multiple directions and enables greater curtain widths without compromising stability.
Solution Approach 2:
The slat design combines the slat body with an integrally formed coupling section that has a different geometric configuration (perpendicular orientation). This composite structure integrates two functional elements with different orientations into a single component, allowing the slat to simultaneously maintain longitudinal continuity and provide transverse stiffening through the perpendicular coupling section.
2Volume of moving object
If the slats are made thinner to reduce material, then the winding diameter is smaller, but the structural stability and wind resistance are reduced
Solution Approach 1:
Instead of increasing slat thickness to improve stability, the invention introduces a perpendicular coupling section that provides structural reinforcement in the transverse direction. This cross-dimensional element acts as a stiffening component, allowing the slat body to remain thin while the overall assembly maintains high structural stability and wind resistance.
Solution Approach 2:
The slat is segmented into the slat body and the coupling section, which are integrally formed but have distinct functions. The coupling section is specifically designed with a perpendicular orientation and cavity structure to provide stiffening, while the slat body maintains a thin profile for easy winding. This segmentation allows each part to be optimized for its specific function.
3Stability of the object's composition
If the coupling section is made play-free for stiffening, then wind resistance improves, but the ability to pivot and roll up the curtain is restricted
Solution Approach 1:
The coupling mechanism provides play-free stiffening in the horizontal transverse direction to resist wind forces, while simultaneously allowing pivoting movement in the vertical plane for rolling operations. The cavity and coupling section geometry enables this directional differentiation, creating a dynamic structure that is rigid when needed for stability but flexible when needed for operation.
Solution Approach 2:
The coupling section is designed with a cavity that receives the perpendicular coupling section of an adjacent slat. This segmented design with orthogonal orientations allows independent movement in different directions: the perpendicular arrangement prevents horizontal play for wind resistance, while the cavity geometry permits vertical pivoting for rolling the curtain.
Data Source
Figure 1~5
Figure 6
AI summary
The slat (1) has a coupling section (2) for connecting with another sun guard slat. The coupling section originates from a slat body (3). A cavity (4) is formed in the slat body to receive a coupling section of the latter sun guard slat. An aperture (5) is opened diagonally downward by the cavity. The former coupling section and/or the cavity comprise one or multiple projections (7), which are formed on a lower side of a seam (8) that is arranged in a cavity wall (6). The slat is manufactured by roll forming a metal strip or an extruded profile. An independent claim is also included for a sun blind.