Scaffolding Coupler Oval Wire Design Material Savings
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Solution Overview
Problem
Existing scaffolding couplers are costly due to excessive material usage and lack durability, leading to high manufacturing costs and weight, which complicates transportation and usage.
Innovation Solution
The scaffolding coupler is designed with oval-shaped wire U-shaped profiles for tube receiving parts, reducing material consumption while maintaining strength, and incorporating a hingeable closing element with a wedge for secure clamping, optionally with a rotatable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional round solid wire is used for tube receiving parts, then sufficient strength is achieved, but material consumption and weight increase
Solution Approach 1:
The patent applies parameter changes by transitioning from round solid wire to oval-shaped wire for the tube receiving parts. This geometric parameter change allows the same material to provide equivalent or superior strength while reducing material consumption by over 10%, directly resolving the contradiction between strength and material quantity.
2Strength
If conventional round solid wire is used for tube receiving parts, then sufficient strength is achieved, but coupler weight increases
Solution Approach 1:
The patent reduces coupler weight by changing the wire cross-sectional geometry from circular to oval. This parameter change maintains the required strength for tube receiving while reducing material consumption, resulting in a weight reduction of over 10% for the coupler.
3Strength
If larger steel surface area is used in conventional couplers, then sufficient strength is achieved, but galvanizing costs increase
Solution Approach 1:
The patent reduces galvanizing costs by changing the wire geometry from round to oval, which decreases the total steel surface area requiring galvanization. This parameter change maintains structural strength while reducing the quantity of material to be coated, directly addressing the contradiction between strength and surface area.
Data Source
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AI summary
A scaffolding system comprising scaffolding tubes and at least one scaffolding coupler for detachably connecting the scaffolding tubes to each other, wherein the scaffolding coupler comprises two tube receiving parts (1a, 1b), characterized in that one or more parts of the scaffolding coupler substantially consist of oval-shaped wire. The invention further provides a coupler as mentioned and a method for manufacturing the coupler.