Hook Coupling Triggering Component Mounting
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Solution Overview
Problem
The existing hook coupling is cumbersome to operate and lacks operational safety, as the triggering device's mounting failure can lead to loss of the blocking effect, allowing the blocking lever to move out of its blocking position.
Innovation Solution
A hook coupling design where the triggering device is mounted on the closure latch or hook body, allowing it to move between basic and triggering positions, ensuring the blocking lever's position is maintained even if its mounting fails, with a pretensioning spring for secure operation and a cam device for easy actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the triggering device is mounted on the blocking lever to prevent its movement, then the blocking effect is secured, but the mounting failure causes loss of blocking effect and reduced operational safety
Solution Approach 1:
The patent introduces a triggering component as an intermediary element that is movably mounted on the closure latch or hook body, rather than directly on the blocking lever. This intermediary component mediates the triggering action by moving between a basic position (where it prevents blocking lever movement) and a triggering position (where it allows blocking lever movement). This resolves the contradiction by decoupling the mounting location from the blocking lever, ensuring that mounting failure does not compromise the blocking effect while maintaining operational simplicity through the component's movable design.
2Device complexity
If the triggering device is mounted on the blocking lever, then the structure is compact, but the blocking lever mounting failure leads to unintended opening and reduced operational safety
Solution Approach 1:
The patent segments the triggering mechanism into two functionally independent parts: the triggering component (movably mounted on closure latch or hook body) and the blocking lever (mounted on closure latch). This segmentation ensures that the triggering component's mounting status does not directly affect the blocking lever's reliability. The blocking lever maintains its blocking function independently, while the triggering component simply controls its movement. This resolves the contradiction by separating the mounting dependencies, maintaining structural compactness while significantly improving operational safety.
3Ease of operation
If the triggering component is moveably mounted on the closure latch or hook body, then the operation is simplified, but the structure becomes more complex
Solution Approach 1:
The patent applies dynamics by making the triggering component movably mounted rather than fixed. The triggering component can move between a basic position (preventing blocking lever movement) and a triggering position (allowing blocking lever movement). This dynamic capability simplifies operation because the triggering component can be easily actuated to change the blocking lever's state. The movable mounting actually reduces overall structural complexity compared to complex fixed mounting mechanisms, as it uses simple translational or rotational movement to achieve the triggering function.
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 design simplifies operation and enhances safety by maintaining the coupling state even with blocking-lever mounting failures, allowing for secure and easy adjustment of the closure latch with reduced risk of unintended opening.
Implementation Method 1
a spring element which exerts a blocking force on the blocking lever in the blocking state
Data Source
AI summary
A hook coupling with a hook body (12), which has a hook-in opening (14), and with a closure latch (16) which can be adjusted between an open position and a closed position furthermore comprises: a blocking lever (26) which is displaceable between a blocking position, in which it blocks an adjustment of the closure latch (16) from the closed position towards the open position, and a release position in which it permits an adjustment of the closure latch (16) from the closed position towards the open position, and a triggering device (36) which, in its basic position, whenever blocking lever (26) is in the blocking position, prevents displacement of the blocking lever (26) into the release position, and which, when actuated out of its basic position, permits displacement of the blocking lever (26) into the release position. The triggering device (36) furthermore comprises a triggering component (38) which is mounted moveably on the closure latch (16) or preferably on the hook body (12) or on a component connected rigidly to the hook body (12) or the closure latch (16) and which is moveable between the basic position and a triggering position in which it permits the displacement of the blocking lever (26) into the release position.