Arresting Device Fall Protection Back Traction Climbing
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Solution Overview
Problem
Existing fall protection systems are not suitable for climbing with back traction, as the arresting device must be manually moved upwards, making the climbing process laborious and not allowing for natural leg-work ascent or descent.
Innovation Solution
The arresting device features a safety catch that automatically transitions between release and arresting positions based on user traction, allowing for upward and downward movement with back traction, and includes upper and lower rollers for smooth guidance along a guide rail, ensuring reliable locking with a succession of arresting bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the arresting device uses a fixed locking mechanism, then reliable fall protection is achieved, but the device cannot be used with back traction climbing
Solution Approach 1:
The safety catch is made pivotable about a pivot axis, allowing it to dynamically change position between retracted (release) and extended (arresting) states. This dynamic mechanism enables the device to adapt to different climbing modes while maintaining reliable fall protection when needed.
Solution Approach 2:
The upper rollers are articulatesly connected to both the fall prevention shuttle and the safety catch, enabling automatic triggering of the safety catch during falls. The system self-activates based on motion detection without requiring external intervention, while still allowing manual operation for climbing assistance.
2Reliability
If the safety catch is always extended for reliable locking, then fall protection is ensured, but the fall prevention shuttle cannot move along the guide rail
Solution Approach 1:
The safety catch transitions between static (extended/locked) and dynamic (retracted/movable) states based on operational needs. The pivotable connection allows automatic retraction during normal movement while maintaining extended position for fall arrest.
Solution Approach 2:
The upper rollers act as an intermediary mechanism that mediates between the fall prevention shuttle and the safety catch. They transmit motion to automatically trigger the safety catch during falls while allowing controlled movement during climbing operations.
3Reliability
If manual movement of the fall prevention shuttle is required, then securement is reliable, but the climbing process becomes laborious
Solution Approach 1:
The system provides self-service by automatically detecting falls through the motion of upper rollers and triggering the safety catch without requiring manual intervention. This maintains reliable securement while eliminating the need for manual shuttle movement during emergencies.
Solution Approach 2:
The manual mechanical operation is replaced by an automatic mechanical triggering system. The articulated connection between rollers and safety catch creates an automatic response mechanism that substitutes for manual operation, improving climbing efficiency while maintaining safety.
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 comfortable and efficient climbing with back traction by automatically locking the fall prevention shuttle in place, meeting European standards for fall protection and allowing ascent and descent without manual device movement, while ensuring securement in all situations.
Implementation Method 1
the upper rollers are displaceable by a specific amount along the fall prevention shuttle... the basic element, inclusive of the safety catch, has a greater inertia than the upper rollers and the parts accommodated thereon
Implementation Method 2
the safety catch is pivotable between a release position, in which the safety catch is retracted, and an arresting position on the basic element... the safety catch is fixed to the basic element pivotably about a pivot axis
Implementation Method 3
a fall prevention shuttle accommodated displaceably on a guide rail by means of guide means... the guide means comprise upper rollers
Data Source
Figure 1
Figure 2
Figure 3~6
AI summary
An arresting device for a fall protection system is disclosed, having a fall prevention shuttle (38), accommodated displaceably on a guide rail (22) by means of upper (44) and lower (42) rollers, having a receiving fixture for a binding (37) for fastening of a safety harness for a user, and having a safety catch (40), which is pivotable between a release position, in which the safety catch (40) is retracted, so that the fall prevention shuttle (38) is displaceable along the guide rail (22), and an arresting position on the basic element (56), in which the safety catch (40) protrudes from the basic element (56) for locking to the fall protection system, wherein the upper rollers (44) are movable by a specific amount along the fall prevention shuttle (38), and wherein the receiving fixture is articulately connected to the safety catch (40) and the upper rollers (44) in such a way that, in the event of a downward pull on the binding (37), a movement of the upper rollers (44) downwards and a pivoting of the safety catch (40) into the arresting position ensues. (Fig. 7).