Fall Indicator Force-Transmitting Component
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Solution Overview
Problem
Existing pretensioning elements for fall protection devices are inefficient in handling and functional reliability, and they do not effectively reduce manufacturing and maintenance costs, particularly in ensuring the proper prestressing and condition monitoring of safety elements.
Innovation Solution
A pretensioning element with a fall indicator designed as a force-transmitting component between the tension and anchor elements, which irreversibly deforms upon impact, allowing for visual inspection of its condition and easy replacement, and includes a spring element to generate prestressing force, along with a value scale for prestressing force display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fall indicator is integrated into the pretensioning element, then fall detection capability is improved, but device complexity increases
Solution Approach 1:
The fall indicator is merged with the pretensioning element by integrating the force-transmitting component directly into the anchor element structure. The component serves dual purposes: transmitting the prestressing force and indicating fall impacts through irreversible deformation, thereby combining monitoring function with structural function without adding separate complex systems
Solution Approach 2:
The force-transmitting component automatically indicates fall impacts through its own irreversible deformation without requiring external sensors, power sources, or complex detection systems. The component self-monitors the prestressing force and self-indicates impact events through visible deformation, eliminating the need for additional active monitoring systems
2Ease of manufacture
If the fall indicator is designed as a force-transmitting component, then manufacturing cost is reduced, but measurement precision of fall detection may be affected
Solution Approach 1:
The force-transmitting component is designed as a simple, inexpensive mechanical element that can be easily replaced after deformation. Rather than using complex expensive sensors, the patent employs a straightforward deformable component that provides reliable fall indication and can be economically replaced, reducing manufacturing and maintenance costs while maintaining adequate detection capability
Solution Approach 2:
The component's physical state changes irreversibly upon impact, transforming from an undeformed to a deformed state that visually indicates fall occurrence. This parameter change (deformation) provides clear, unambiguous fall detection without requiring complex measurement systems, achieving reliable detection through simple physical transformation
3Ease of operation
If the fall indicator provides clear visual deformation indication, then ease of operation is improved, but the component requires replacement after impact which increases maintenance considerations
Solution Approach 1:
The force-transmitting component is designed as a separable element that can be easily removed and replaced from the anchor element structure. After irreversible deformation indicating fall impact, the component is extracted from the assembly and replaced with a new one, simplifying the repair process to a straightforward component swap without requiring complex repair procedures
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 simplifies the verification of fall protection condition, reduces maintenance costs, and prevents incorrect installation by providing a mechanical method for deformation indication, ensuring safe and reliable operation.
Implementation Method 1
an elastically deformable component (38), which generates a prestress for the securing element
Data Source
Figure 1
AI summary
Pre-tensioning element comprises a fall indicator arranged as a power-transferring component (24) between a pulling element (10) and an anchoring element (12) so that the indicator transfers the pre-tensioning force and deforms itself by the impact force acting on the securing element. Preferred Features: The fall indicator is a tubular element. The anchoring element has a recess (46) so that the indicator is visible from the outside through the recess.