Scaffold Latch Assembly Automatic Locking Mechanism
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Solution Overview
Problem
Portable scaffolds require a lightweight and simple latching mechanism that can securely lock and unlock leg assemblies to facilitate easy setup and storage, while maintaining stability and safety.
Innovation Solution
A scaffold design featuring a latch assembly that automatically engages with a stud on a leg assembly to lock it in the extended position, allowing manual disengagement for folding, utilizing a latch hook and spring mechanism for secure locking and easy unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a latching mechanism is made simple and lightweight, then portability is improved, but locking reliability may deteriorate
Solution Approach 1:
The latch assembly automatically engages with the leg assembly when extended, locking it in place without requiring manual intervention. The spring mechanism provides automatic reset functionality, making the system self-servicing and eliminating the need for complex manual operation mechanisms.
Solution Approach 2:
The latch mechanism is designed as a separate, removable component that can be easily detached from the platform. This modular approach reduces the overall weight of the scaffold while maintaining the locking function through a simplified, extracted latching subsystem.
2Ease of operation
If the latch assembly automatically locks the leg assembly, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The automatic locking mechanism engages the latch with the leg assembly through the natural motion of extending the legs, eliminating the need for separate manual locking actions. The spring-loaded design provides automatic reset and engagement, reducing operational steps.
Solution Approach 2:
A cam surface acts as an intermediary between the leg assembly motion and the latch engagement. The cam geometry converts the linear motion of leg extension into rotational motion that drives the latch into the locked position, simplifying the control mechanism.
3Ease of operation
If the latch assembly is designed for manual disengagement, then ease of operation is improved, but stability during use may deteriorate
Solution Approach 1:
The latch assembly maintains a locked state automatically during normal use, providing stable locking without requiring continuous manual engagement. The spring mechanism ensures the latch remains engaged unless deliberately actuated by the user through the release mechanism.
Solution Approach 2:
The latch assembly transitions from a static locked state to a dynamic unlocked state only when the user applies force to the release mechanism. This dynamic behavior ensures stability during normal operation while allowing easy unlocking when needed.
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
Enables secure locking of leg assemblies in the extended position without manual intervention, ensuring stability during use and easy conversion to a folded state for storage, maintaining portability and safety.
Implementation Method 1
utilizing a latch hook and spring mechanism for secure locking and easy unlocking
Data Source
AI summary
A scaffold upon which a person stands includes a platform with a first leg assembly rotatably attached to the platform. The scaffold includes a latch assembly having a latch pivot axis coupled to the platform. The scaffold includes a stud attached to a first leg of the first leg assembly to which the latch assembly engages when the first leg assembly is moved into the extended position to automatically lock the first leg assembly in the extended position where the latch assembly is in a set position. When the latch assembly is moved out of the set position, the stud on the first leg disengages from the latch assembly and the first leg assembly is able to rotate about the first leg assembly pivot axis to a folded position. A method for using a scaffold.