Interlocking Slats with Retention Grooves for Wind Load Resistance
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Solution Overview
Problem
Conventional closure systems are inadequate in withstanding greater external forces and maintaining operability, particularly in resisting wind loads and prying forces.
Innovation Solution
A closure system comprising a guide assembly with retention bars and interlocking slats, where each slat has a retention groove and a moment of inertia that enhances strength, allowing the system to resist deformation and maintain functionality under impact and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional closure systems are used, then the structure is simple and easy to manufacture, but the system cannot withstand greater external forces such as wind loads and prying
Solution Approach 1:
The closure system is divided into multiple slats that can move independently within the guide assembly. Each slat is a separate component that interlocks with adjacent slats, allowing the system to distribute and withstand greater external forces while maintaining operational flexibility. This segmentation enables the closure to resist wind loads and prying forces without requiring a single complex monolithic structure.
Solution Approach 2:
The retention bar is positioned within the retention groove of each slat, creating a nested configuration where one component fits within another. This nesting arrangement provides multiple layers of retention and structural support, enhancing the ability to withstand external forces while maintaining a compact and organized structure that does not significantly increase overall complexity.
2Reliability
If the closure system uses interlocking slats with retention grooves, then the system can withstand greater forces and maintain structural integrity, but the manufacturing precision requirements increase
Solution Approach 1:
The retention groove and retention bar are designed with specific local geometric characteristics that provide reliable engagement. The groove width, bar width, and their relative positioning are optimized to ensure proper fit and retention without requiring high precision across the entire slat. This localized quality approach allows for easier manufacturing of individual components while maintaining overall reliability.
Solution Approach 2:
The slats are designed to be movable within the guide assembly rather than fixed, allowing dynamic adjustment and flexibility during operation. This dynamic capability reduces the stringency of manufacturing precision requirements, as the system can accommodate minor variations in component dimensions through movement and interlocking actions, while still maintaining structural integrity under force.
3Strength
If the slats are made with higher moment of inertia to resist deformation, then the closure can withstand impact and pressure, but the weight and material usage increase
Solution Approach 1:
The moment of inertia is enhanced by optimizing the slat geometry in multiple dimensions, including thickness, width, and length distributions. By strategically varying these dimensional parameters along the slat length and incorporating the interlocking bead structures, the system achieves higher resistance to deformation without uniformly increasing weight throughout the entire slat mass.
Solution Approach 2:
The closure system incorporates composite construction elements, combining different materials or material properties in the slat and bead structures. This allows for optimized strength-to-weight ratios, where materials are selected and configured to provide maximum resistance to deformation while minimizing overall weight. The interlocking composite structure of multiple slats with beads creates a system that is stronger relative to its weight compared to a single-material construction.
Data Source
AI summary
In one embodiment, a closure system comprises a guide assembly having a channel defined by a first guide wall and a second guide wall. The closure system may include a retention bar extending into the channel from the first guide wall and a plurality of slats. Each slat of the plurality of slats may be configured to interlock with another of the plurality of slats. Each slat may have a retention groove with at least one sidewall configured and dimensioned to engage the retention bar to retain the slat within the channel.