Scaffolding Metal Board Mechanical Stitching
Solution Overview
Problem
Current scaffolding metal boards face issues of corrosion at weld junctions, posing safety hazards, and have high energy consumption due to the welding process in their production.
Innovation Solution
A metal board for scaffolding with a metal base sheet and support members connected via mechanical stitching, where tabs from the base sheet or support members pass through apertures and overlap, eliminating the need for welding, along with a manufacturing process on a single production line that includes unwinding, cutting, bending, and shaping to ensure precise alignment and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to connect support members to the base sheet, then strong connection is achieved, but corrosion risk increases at the junction
Solution Approach 1:
The patent replaces the welding process (thermal/chemical connection) with a mechanical interlocking system using tabs that fold through apertures and lock into place. This mechanical connection achieves sufficient strength while eliminating the corrosive environment created by welding, thus resolving the contradiction between connection strength and corrosion resistance.
2Strength
If welding is used to connect support members to the base sheet, then strong connection is achieved, but energy consumption increases
Solution Approach 1:
The patent substitutes the energy-intensive welding process with a cold-forming mechanical connection process. The tabs are simply bent and folded into position through apertures, requiring minimal energy compared to welding, while still achieving a strong, reliable connection between support members and the base sheet.
3Reliability
If tabs are bent to overlap support members or base sheet, then corrosion is prevented, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple manufacturing operations (cutting tabs, creating apertures, bending tabs to overlap) into a single integrated production line process. This merging of operations maintains manufacturing simplicity while achieving the corrosion-resistant mechanical connection, as all steps are performed sequentially without requiring separate complex processes.
4Manufacturing precision
If multiple processing steps are used to create tabs and apertures, then precise alignment is achieved, but production time increases
Solution Approach 1:
The patent performs preliminary actions by pre-forming tabs and apertures in the base sheet and support members during the same production line process. The tabs are cut and positioned before the final assembly, and apertures are created at predetermined locations, ensuring precise alignment is achieved as part of the integrated manufacturing process rather than as a separate post-processing step.
Data Source
AI summary
A metal board (1) for scaffolding comprising a metal base sheet (2), at least one support member (3A, 3B, 3C) and means for connecting (4) said at least one support member (3A, 3B, 3C) to said base sheet (2), characterised in that said connecting means (4) comprise a plurality of tabs (5) extending transversally from said base sheet (2) or respectively from said at least one support (3A, 3B, 3C) member, said tabs (5) projecting through a plurality of apertures (6) in said at least one support member (3A, 3B, 3C) or respectively in said base sheet (2) and further extending along said at least one support member (3A, 3B, 3C) or respectively along said base sheet (2) so as to be able to overlap said at least one support member (3A, 3B, 3C) or respectively said base sheet (2) in a junction zone (11) there between. The invention further comprises a pocess for manufacturing such a metal board.