Scaffolding Coupler Layout for Single-Side Tightening Access
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Solution Overview
Problem
Existing scaffolding couplers, both single and double, face challenges in load-bearing strength and accessibility of tightening elements, particularly when requiring access from opposite directions, which complicates installation and increases the need for additional structural support.
Innovation Solution
A coupler device with a main body and two hingedly attached gates, each with a tightening mechanism, allows both nuts to be accessed from the same direction, providing enhanced load-bearing capacity and simplified installation by eliminating the need for extra structural tubes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tightening elements are accessed from opposite directions in a double coupler, then load-bearing strength is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent repositions the second tightening element from a conventional opposite-direction arrangement to an elevated position above the plane of the first building element. This dimensional relocation allows both tightening elements to be accessed from substantially the same direction (frontal access), reducing installation complexity while maintaining the load-bearing advantages of a double coupler configuration
2Strength
If tightening elements are accessed from opposite directions, then load-bearing strength is improved, but installation time and accessibility worsen
Solution Approach 1:
By elevating the second tightening element above the plane of the first building element, the patent enables both nuts to be accessed from the same directional viewpoint. This eliminates the need for workers to move to opposite sides of the structure, significantly reducing installation time while preserving the dual-clamping load-bearing capacity
3Ease of operation
If an elaborate swivel connection is used to access tightening elements, then accessibility is improved, but device complexity increases
Solution Approach 1:
The patent removes the elaborate swivel connection mechanism entirely by repositioning the second tightening element to an elevated location. This extraction of the complex swivel mechanism eliminates unnecessary moving parts while achieving the same accessibility goal through static geometric repositioning, thereby reducing device complexity
4Strength
If a double coupler is used instead of a single coupler, then load-bearing strength is improved, but the need for additional structural tubes increases
Solution Approach 1:
The patent creates a universal coupler design that performs both single coupler and double coupler functions. By incorporating two clamping portions with tightening mechanisms in one device, it eliminates the need for separate single and double coupler fittings, allowing the same component to be used in all scaffolding applications regardless of load-bearing requirements, thereby reducing the variety and quantity of structural tubes needed
Data Source
AI summary
A coupler device (10), for connecting two overlapping building elements (V, H) at substantially right angles. The device includes a main body (11) and two hingedly attached gate elements (12, 13) extending at perpendicular and offset axes from the body. Each gate element respectively includes an associated tightening mechanism, e.g. a rod (17, 20) with threaded end engaging with a nut (19, 22), for controlling closing force toward the main body and clamping a building element. In use, the respective tightening mechanisms (e.g. nuts on threaded rod) are accessible from substantially the same direction relative to the main body and not obscured by the two overlapping building elements when fixed in place. This may be achieved by the gates, compared to each other, having a reversed configuration of tightening mechanism extending between a distal end of the gate relative to a connection point on the main body.