Roofing Panel Edge Projections Mating Bracket Grooves
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Solution Overview
Problem
Conventional modular roofing assemblies are laborious to assemble, prone to weaknesses at anchorage holes, and vulnerable to weather conditions due to imperfect connections, especially in cantilever structures.
Innovation Solution
A roofing assembly with specially designed brackets that have increased separation load and stability, featuring inclined longitudinal projections and grooves for snap-fit engagement, allowing easy assembly and disassembly, and including cavities for permanent anchorage, which enhances resistance to transverse stresses and weather exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If metal sheets are directly attached to the roof structure by perforation and punching, then the connection is simple, but the sheets become weak at anchorage holes and vulnerable to weather conditions
Solution Approach 1:
The patent introduces brackets as intermediate elements between the metal sheets and the roof structure. These brackets are anchored to the structure and provide connection points for the sheets without requiring direct perforation of the sheets themselves, thereby eliminating weak points while maintaining simple connection
Solution Approach 2:
The connection system is divided into separate components: brackets anchored to the structure and metal sheets that connect to the brackets. This segmentation allows the sheets to remain intact without holes, while the brackets handle the anchorage function
2Reliability
If adjacent sheets are crimped together by special tools, then the connection is secure, but the assembly process becomes laborious and requires complex operations
Solution Approach 1:
The brackets serve as intermediaries that simplify the connection process. Instead of crimping adjacent sheets together with special tools, the sheets connect to the brackets which are already anchored to the structure, eliminating the need for complex crimping operations and special tools
Solution Approach 2:
The brackets are pre-mounted to the roof structure before the metal sheets are installed. This preliminary action allows the sheets to be simply connected to the existing brackets without requiring complex assembly operations on-site
Data Source
AI summary
A roofing structure for buildings, and more particularly a roofing assembly having high resistance, especially for use with roofs of residential and industrial buildings. The assembly comprises a plurality of sheet panels to be interconnected along side edge portions shaped to define a first longitudinal projection facing laterally outwards, and multiple mounting brackets to be anchored to a roof. Each bracket has at least one longitudinal groove to house in a snap fit relationship the first longitudinal projections of adjacent panels, so that the first longitudinal projections and the groove have opposing upper surfaces at least partly flat and substantially parallel or slightly inclined, in order to enhance the retaining action of the brackets and increase the separation load causing the separation of the edge portions from the brackets.