Scaffold Fall Protection Toggle Lock Against Accidental Disassembly
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Solution Overview
Problem
Existing scaffolding systems lack a simple and effective solution for securely attaching fall protection systems that provides both permanent and temporary options, with existing devices being complex to manufacture or prone to accidental disassembly.
Innovation Solution
A device with a toggle lever mechanism that uses a tension pin to lock the rocker arm, allowing either a permanent or temporary attachment of fall protection poles by securing the rocker arm against pivoting, depending on the pin's presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pendulum plate mechanism is used to allow fall protection systems to be attached from the secured lower level, then the ease of operation is improved, but the reliability deteriorates because the solution is non-definitive and allows accidental disassembly
Solution Approach 1:
The device employs a dynamic toggle lever mechanism that can exist in multiple states: unlocked (for easy attachment), locked (for secure fixation), and definitively locked (preventing removal). The toggle lever pivots between these states, providing both ease of operation during installation and reliable security during use, resolving the contradiction between easy attachment and prevention of accidental disassembly.
Solution Approach 2:
The invention applies different local qualities to different parts of the attachment mechanism. The toggle lever provides a reversible, easy-to-operate locking action, while the tension pin provides a definitive, tool-removal-resistant locking action. This combination allows the same device to offer both ease of operation and high reliability depending on which mechanism is engaged.
2Reliability
If a tension pin is used to provide a definitive solution preventing removal, then the reliability is improved, but the ease of operation deteriorates because tool removal is required
Solution Approach 1:
The device creates a dynamic system where the tension pin can be easily inserted to provide definitive security, and easily removed by pulling it outward. The tension pin's design allows it to be quickly engaged and disengaged without tools, providing both high reliability when locked and ease of operation when removal is needed, such as for emergency exits.
3Reliability
If conventional fastening devices are used requiring hammering, then the reliability is improved, but the ease of manufacture and ease of operation worsen due to complex assembly requirements
Solution Approach 1:
The invention replaces the traditional mechanical fastening system requiring hammering and welding with a purely mechanical toggle lever and tension pin system. This substitution eliminates the need for complex assembly tools and processes while maintaining secure attachment, significantly improving both ease of manufacture and ease of operation while preserving reliability.
Data Source
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AI summary
The invention relates to a device for attaching fall protection devices to scaffolding, which has L-shaped wall elements (51) on its longitudinal sides, between which a connecting plate (52) is attached and the wall elements (51) are each provided with a hole (54), wherein a bolt (3) is arranged in the holes (54), to which a rocker arm (56) is attached, which consists of a plate (57), and the rocker arm (56) is provided with a support element (58) oriented at an angle to the plate (57), wherein the plate (57) is provided with a cutout (53) which is provided with a hole (531) from which a tension pin (10) can be received, which in the assembled state is supported on the connecting plate (52).