Embossed One-Piece Angle Bracket for Deformation-Resistant Fastening
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Solution Overview
Problem
Existing angle brackets are prone to deformation under stress due to inadequate embossments and aperture placement, leading to potential structural instability and incorrect mounting issues during construction.
Innovation Solution
A one-piece angle bracket design with embossments extending along the central axis of both sections, incorporating apertures aligned with the center axis to enhance the moment of inertia and provide a stable mounting surface, allowing for various fastening options and reduced risk of rotation during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If embossments are extended along the central axis including aperture areas, then the moment of inertia is increased and deformation is reduced, but the flat space for fastening means contact is reduced
Solution Approach 1:
The embossment profile is modified locally at aperture positions to create flat contact surfaces, while maintaining the longitudinal embossment structure for strength. This allows different regions of the angle bracket to have different geometries optimized for their specific functions.
Solution Approach 2:
The embossment is segmented into different sections: continuous longitudinal embossment for structural strength, and localized flat areas at aperture positions for fastening contact. This segmentation allows both requirements to be satisfied simultaneously.
2Reliability
If apertures are placed along the central axis, then timber splitting is reduced, but the flat space around apertures is reduced
Solution Approach 1:
The embossment geometry is locally modified at aperture positions to provide flat contact surfaces, while maintaining the central axis alignment for timber protection. This localized adaptation resolves the conflict between central placement benefits and fastening requirements.
3Ease of manufacture
If smaller embossments are used, then the angle bracket is easier to manufacture, but the bracket deforms under load forcing the angle from 90°
Solution Approach 1:
The embossment is extended in the longitudinal dimension along the central axis, transforming from small discrete features to continuous longitudinal elements. This dimensional change significantly increases the moment of inertia and resistance to deformation while maintaining manufacturability.
Data Source
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AI summary
A one-piece angle bracket (1) for fastening a first construction element (14) to a second construction element (15), said angle bracket (1) comprising: - a first section (2), a second section (3),- said first section (2) and said second section (3) being arranged essentially perpendicular to each other via a common bending section (4), furthermore the angle bracket (1) comprises a number of apertures (10) for receiving means (17) for fastening the first section (2) of the angle fastener (1) to a first construction element (14) and the second section (3) of the angle fastener (1) to a second construction element (15), finally the angle bracket (1) comprises an embossment (5) extending along the centre axis (7) of the first section (2) and along the centre axis (9) of the second section (3) via an embossed section of the common bending section (4), at least one of the apertures being placed with its centre substantially on the centre axis of the first (2) or the second section (3).