Work Scaffold Latch Assembly and Hook Connection Mechanism
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Solution Overview
Problem
There is a need for a simple and secure technique to lock and unlock work scaffolds in open or folded positions, as well as to connect multiple scaffolds in series for extended platforms, while efficiently combining boards and cross members for secure and stable structures.
Innovation Solution
The work scaffold features rotatable leg assemblies with latch assemblies that lock into open positions between 30° and 125°, allowing for easy conversion to folded positions, and hook assemblies for connecting additional platforms, along with a method of using cross members inserted through specific holes in boards for assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a latch assembly is added to lock the leg assembly in an open position, then the scaffold becomes more secure and stable, but the device complexity increases
Solution Approach 1:
The latch assembly is designed to automatically engage and lock the leg assembly in the open position through spring-loaded mechanisms that self-actuate when the leg assembly is extended, eliminating the need for manual locking operations and reducing operational complexity
Solution Approach 2:
The locking function is extracted as a separate, modular latch assembly that can independently engage or disengage from the leg assembly, allowing the locking mechanism to be simplified while maintaining security through dedicated locking components rather than integrating complexity into the entire scaffold structure
2Ease of operation
If the leg assembly is made rotatable for easy folding, then the ease of operation improves, but the stability of the scaffold may be compromised
Solution Approach 1:
The leg assembly is designed with rotational joints that allow dynamic movement between open and folded positions, while the latch assembly provides static locking when in the open position, creating a system that is both easy to reconfigure and stable during use
Solution Approach 2:
The latch assembly engages in advance to prevent accidental movement or collapse of the leg assembly during the open position, counteracting potential instability before it can occur, while allowing easy disengagement for folding when needed
3Adaptability or versatility
If hooks are added to connect multiple scaffolds, then the adaptability increases, but the device complexity increases
Solution Approach 1:
The hooks are designed as universal connection elements that can attach to standardized features on any scaffold platform, allowing multiple scaffolds to be connected in series without requiring complex or specialized connection mechanisms, thereby increasing adaptability with minimal added complexity
4Reliability
If the latch handle is positioned to block the link slot in open position, then the reliability of locking is improved, but the handle may accidentally catch on objects during transport
Solution Approach 1:
The latch handle is designed to automatically move to a retracted or protected position when the leg assembly is folded, preventing it from catching on objects during transport before the harmful effect can occur, while maintaining its blocking function in the open position for reliable locking
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a secure and efficient way to lock scaffolds in open positions, prevent accidental handle engagement during transport, and enable seamless connection of multiple scaffolds, ensuring user safety and stability while maintaining structural integrity.
Implementation Method 1
The latch assembly having a first spring which biases the free end towards a top of the first platform slot in the open position
Data Source
AI summary
A work scaffold having a platform and leg assemblies rotatably attached to each end of the platform. The platform may have a handle connected to free end that extends out the sides of the platform, which engage with links attached to the leg assemblies and the platform to lock the scaffold in an open or closed position. The platform may have hooks that extend out beyond the ends of the platform from under the platform so a second work scaffold can be situated on the hooks. The platform may be formed of boards with holes that receive cross members. A method for using a work scaffold. A method for forming a work scaffold.