Anti-Torsion Roof Bracket with Locating Tab
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Solution Overview
Problem
Existing structural reinforcement methods, such as 'Hurricane Clips,' fail to provide resistance to torsion forces and compressive loads, and do not securely fasten roof construction materials to foundational elements.
Innovation Solution
The anti-torsion roof element features a base plate with transverse planar surfaces and fastening openings, along with a locating tab, which provides resistance to torsion, compression, and tension forces by securely anchoring roof construction materials to foundational elements, including trusses and rafters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If nail-type fasteners are used to secure roof elements, then installation is simple and cost-effective, but resistance to torsion forces and compressive loads is insufficient
Solution Approach 1:
The bracket is divided into distinct functional segments: a base plate for mounting to the wall, transverse planar surfaces for receiving roof members, and multiple fastening openings for securing connections. This segmentation allows each part to optimize its specific function while maintaining overall structural integrity against torsion forces.
Solution Approach 2:
The invention transitions from simple nail-type fasteners to a multi-dimensional bracket structure with base plates extending perpendicular to the wall surface and transverse surfaces receiving roof members. This dimensional expansion creates a three-dimensional fastening system that resists torsion through spatial distribution of fastening points rather than relying solely on linear nail penetration.
2Device complexity
If simple bracket stampings are used for roof fastening, then device complexity is low, but ability to resist torsion and provide compressive support is inadequate
Solution Approach 1:
The bracket serves multiple functions simultaneously: it anchors roof members to the wall, resists torsion through its extended geometry, provides compressive support via the base plate bearing surface, and secures connections through multiple fastening openings. This multi-functionality achieves high reliability without proportionally increasing complexity.
Solution Approach 2:
The invention combines previously separate functions into a single integrated bracket component: mounting attachment, torsion resistance, compression support, and fastening security are merged into one structural element rather than requiring multiple separate components, thereby maintaining simplicity while enhancing reliability.
3Productivity
If traditional fastening systems are used, then installation speed is fast, but structural integrity against lifting and torsion forces is compromised
Solution Approach 1:
The bracket is pre-configured with multiple fastening openings and locating tabs that guide proper installation positioning before final fastening. This preliminary arrangement of fastening points and alignment features enables quick installation while ensuring structural integrity is achieved through pre-planned geometric configuration rather than complex field adjustments.
Data Source
AI summary
A roof member anti-torsion bracket device includes a base plate that is adapted to sit on a top plate of a wall construction and to receive a truss assembly. At least one transverse planar surface is oriented substantially transverse to the base plate. A locating tab extending longitudinally with respect to the base plate abuts an edge of the top plate, thereby locating the anti-torsion bracket device an offset distance from the edge of the wall construction top plate. The base plate further includes first and second fastening openings oppositely located with respect to the at least one transverse planar surface. The first and second fastening openings define first and second fastening positions in the base plate, thereby providing torsion resistance, compressive load support, and tension lifting resistance for the base plate.