Roofing Clamp with Guide Ribs for Precise Alignment
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Solution Overview
Problem
Existing clamps for securing metal sheets to roofing beams face issues with correct positioning, alignment, and noise due to thermal expansion, as well as inadequate strength under tractional loads, particularly when using nail guns for fixation.
Innovation Solution
A clamp design featuring a base surface with through-holes, raised ribs for guidance, and a bearing surface at right angles, along with a centring tool for precise screw insertion, ensuring proper alignment and high strength, stability, and reduced deformability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If nail guns are used for fixing clamps to beams, then fixing speed is improved, but positioning precision and alignment accuracy deteriorate
Solution Approach 1:
The clamp incorporates pre-formed guide ribs and positioning elements that are created during manufacturing. These elements perform the preliminary action of guiding the clamp into correct alignment with the beam before the actual fixing operation occurs, ensuring precise positioning even when using rapid nail gun installation methods.
Solution Approach 2:
The guide ribs and positioning elements act as intermediary components between the clamp and the beam. These intermediaries facilitate the connection by providing mechanical guidance and alignment, allowing the nail gun to quickly secure the clamp while maintaining precise positioning through the mediating structural elements.
2Ease of operation
If clamps are fixed at non-perfect right angles due to positioning issues, then ease of installation is improved, but noise from thermal expansion deteriorates
Solution Approach 1:
The bearing surface and guide ribs are pre-configured during manufacturing to establish the correct geometric relationship between the clamp and beam. This preliminary positioning ensures that the clamp is installed at the proper right angle, preventing the misalignment that would cause noise during thermal expansion and contraction cycles.
Solution Approach 2:
The invention replaces the reliance on operator skill for achieving proper angular alignment with a mechanical guidance system consisting of guide ribs and bearing surfaces. This substitution ensures consistent right-angle installation regardless of installer expertise, eliminating the source of thermal expansion noise.
3Ease of manufacture
If nails are used for fixing metal sheets, then initial fixation is achieved, but strength under tractional loads deteriorates
Solution Approach 1:
The invention changes the fixation parameter from nails to screws, which fundamentally alters the mechanical properties of the connection. Screws provide superior resistance to tractional loads that tend to raise the metal sheet, while still maintaining ease of installation through the guided positioning system that ensures proper alignment during the fixing process.
4Strength
If reinforcing ribs are added to clamp base surface, then strength and stability are improved, but manufacturing complexity deteriorates
Solution Approach 1:
The guide ribs and reinforcing ribs are merged into a single integrated structural feature of the clamp base. This combination serves multiple functions simultaneously: providing structural reinforcement for strength and stability, while also serving as alignment guides for precise positioning. The merged design reduces the number of separate components and simplifies the manufacturing process.
Solution Approach 2:
The raised ribs on the clamp base serve multiple functions: they act as guide elements for alignment, provide structural reinforcement for strength and stability, and facilitate proper positioning during installation. This multi-functionality eliminates the need for separate components for each function, reducing overall manufacturing complexity while achieving all desired performance characteristics.
Data Source
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Figure 5~8
AI summary
Clamp for securing metal sheets (2) to roofing beams (3), comprising a base surface (10) with a larger dimension extending in the longitudinal direction (X-X) and smaller dimension extending in the transverse direction (Y-Y) and a bearing surface (20) at right angles to the base surface (10) and integral therewith, at least two through-holes (11) formed in the base surface, and end holes (11), each consisting of one of said through-holes (11) and being formed in the base surface (10) in the vicinity of one (10a;10b) of its opposite transverse side edges (10a,10b), at least one pair of stiffening and guiding ribs (15) formed on the base surface (10), that comprises a raised rib (13) extending in the transverse direction (Y-Y) between each end hole (11) and the associated transverse side edge (10a,10b) of the base surface (10); a continuous, raised, stiffening and guide rib (14) extending in the longitudinal direction (X-X) and formed at a certain distance from the longitudinal free edge (10c) of the base surface (10), the opposite ends of the longitudinal rib (14) being connected to the end of each transverse end rib (13), directed towards the free edge (10c) of the base surface and at least one pair of stiffening and guiding ribs (15) extend between the longitudinal rib (14) and the bearing surface (20), the opposite ends of said ribs (15) being respectively connected to the said longitudinal rib (14) and to the bearing surface (20).