Scaffolding Locking Device Spring Catch Design
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Solution Overview
Problem
Existing locking devices for modular scaffolding, such as between decks and ledgers, often require complex mechanisms and multiple parts, leading to increased wear, corrosion, and malfunction risks, as well as higher costs and complexity in handling and storage.
Innovation Solution
A self-springing securing device with a safety catch that moves between open and secured positions, utilizing a simple two-part design with inherent spring action, where the safety catch is shaped to provide resilience and retention in each position, minimizing the number of parts and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex locking mechanisms with multiple parts are used, then reliability of locking is improved, but device complexity and susceptibility to wear and corrosion increase
Solution Approach 1:
The patent combines the safety catch and attachment member into a single integrated securing device with only two parts (the safety catch itself and the attachment member to which it is fixed). This merging eliminates the need for separate springs, nuts, and other components found in traditional locking devices, thereby reducing the number of parts while maintaining locking reliability through the inherent spring action of the safety catch design.
Solution Approach 2:
The safety catch is designed with inherent springing features that enable it to automatically return to its locking position after being displaced. The catch utilizes its own elastic properties to provide the spring action, eliminating the need for separate spring components. This self-service mechanism reduces part count while ensuring reliable automatic re-engagement of the locking feature.
2Adaptability or versatility
If multiple separate components are used in locking devices, then adaptability of locking mechanism is improved, but ease of manufacture and storage are worsened
Solution Approach 1:
By integrating the safety catch and attachment member into a minimal two-part system, the patent simplifies manufacturing processes and storage requirements. The attachment member is fixed to the deck or scaffold component, while the safety catch is a single resilient piece that can be manually operated. This reduction from multiple separate components to just two integrated parts makes both manufacturing and storage significantly easier while preserving the adaptability of the locking mechanism to various scaffold configurations.
3Reliability
If traditional safety catches with separate springs and nuts are used, then securing reliability is improved, but part wear and malfunction risks increase
Solution Approach 1:
The safety catch is designed as a single resilient component that uses its own elastic properties to provide the necessary spring action for reliable locking and unlocking. By eliminating separate springs, nuts, and other fastening components, the design reduces the number of parts that can wear out, corrode, or malfunction. The inherent springing features of the catch itself ensure securing reliability without the vulnerability associated with multiple separate mechanical components.
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
The solution reduces part wear, corrosion, and malfunction risks while simplifying handling, mounting, dismounting, and storage, and lowers costs by using a minimal number of parts, ensuring secure locking with reduced complexity.
Implementation Method 1
The safety catch and the attachment member interact achieving an inherent spring action enabling the catch to be moved manually between the first and second positions, while at the same time enabling the catch to be retained in each position. The attachment member has an inner cavity with varying inside dimensions for control of an inherent resilience of the safety catch due to its own shape when moved therein.
Data Source
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AI summary
The invention relates to a locking device (10) between decks, ladders or stairs (20) and ledgers (30) for modular scaffolding or similar. According to the invention, the locking device exhibits a spring catch (4, 5, 40, 50, 400, 410) between the deck/stair and the ledger. Preferably, the catch is arranged on the deck/stair and secures, in its locked position, the deck/stair to the ledger.