Hanging Scaffold Chain Coupling for Easier High-Load Attachment
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Solution Overview
Problem
Conventional hanging scaffolds require complex adjustments to connect chains to scaffolding members, limiting ease and strength of attachment.
Innovation Solution
A hanging scaffold design featuring a chain coupling device with a cylindrical body and a stopper having a notch that allows easy connection of chains by lateral movement, ensuring sufficient strength without orientation adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional pin insertion method is used to connect the chain to the cylindrical body, then the connection can be achieved, but it requires complex adjustments of chain element position and orientation making the operation troublesome
Solution Approach 1:
The patent introduces a stopper as an intermediary component between the chain element and the cylindrical body. The stopper includes a through hole that receives the chain element and a protrusion that engages with the cylindrical body, thereby mediating the connection process and eliminating the need for complex pin insertion procedures
Solution Approach 2:
The connection mechanism is divided into separate functional components: the stopper with its through hole for receiving the chain element, and the cylindrical body with its protrusion for engagement. This segmentation allows each component to perform its specific function independently, simplifying the overall connection operation
2Strength
If the conventional pin connection method is used, then the chain can be connected to the scaffolding member, but the strength is limited by the size of the hole in the chain element
Solution Approach 1:
The patent transitions from a two-dimensional pin insertion through a hole to a three-dimensional engagement where the protrusion of the stopper fits into a corresponding recess in the cylindrical body. This dimensional change allows for a more robust connection that is not limited by the hole size in the chain element
Solution Approach 2:
The chain coupling device combines different structural elements (stopper, protrusion, recess) to create a composite connection system that leverages the strengths of each component, achieving higher loading capacity than a simple pin connection through a hole
3Strength
If multiple chains are used to ensure sufficient strength, then the loading capacity increases, but the device complexity and number of components increase
Solution Approach 1:
The patent merges the functions of multiple chains into a single chain by using a stopper that can receive the chain element and distribute the load across the engagement with the cylindrical body. This combining effect allows one chain to achieve the loading capacity that would otherwise require multiple chains
Data Source
AI summary
It is characterized in that a scaffolding member having a work floor; a chain formed by connecting a plurality of annular-shaped chain elements in a row and suspending the scaffolding member; and a chain coupling device installed in the scaffolding member and coupling the chain to the scaffolding member are included, in which when a side facing a hole of the chain element is a front side, a width of the chain element viewed from the front side is a lateral width, and a width of the chain element viewed from a side is a vertical width, the chain coupling device includes: a cylindrical body in which an axis is along a vertical direction and the chain is inserted inside; and a stopper that has a notch with a width narrower than the lateral width of the chain element and wider than the vertical width of the chain element and abuts on a lower end of the cylindrical body.