Latch Fitting Guide Element Stop Mechanism
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Solution Overview
Problem
Conventional latch fittings with double-contact point locking bolts face issues during unlocking, where radial clearance can cause re-engagement with the toothing, leading to potential damage and complex assembly due to lack of a defined unlocked position and increased radial clearance.
Innovation Solution
Incorporating guide elements with stops at the end facing away from the toothing to limit the adjustment track of locking bolts, providing a defined final position and reducing radial clearance, thus preventing re-engagement and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive element is mounted with radial clearance (floating mounting) to compensate production tolerances and ensure secure engagement of all locking bolts, then the reliability of locking engagement is improved, but the locking bolts may re-engage with the toothing during unlocking due to radial movement, causing potential damage and increased complexity
Solution Approach 1:
The guide element with stop预先 limits the radial movement path of the locking bolt, preventing the harmful re-engagement effect before it can occur. The stop creates a predefined boundary that counteracts the potential harmful radial displacement during unlocking operations.
2Adaptability or versatility
If the drive element is mounted with radial clearance to accommodate tolerance variations, then the adaptability to production variations is improved, but the device complexity increases due to the need for floating mounting and associated clearance management
Solution Approach 1:
The guide element acts as an intermediary component that manages the radial clearance between the drive element and the locking bolt. It provides a controlled path that accommodates tolerance variations while simplifying the overall mounting structure through the stop mechanism.
3Ease of manufacture
If no stop is provided to limit the adjustment track, then the ease of manufacture is improved by simplifying the guide element design, but the locking bolt may move excessively in radial direction causing re-engagement and potential damage
Solution Approach 1:
The stop on the guide element预先 defines the limits of the adjustment track, establishing boundaries for locking bolt movement before any problematic re-engagement can occur. This preliminary constraint ensures reliable operation while maintaining manufacturing simplicity.
Data Source
AI summary
A latch fitting for locking two components includes a first fitting part and a second fitting part. At least one locking bolt is movably arranged on the first fitting part and is guided on at least one longitudinally extended guide element along an adjustment track. The guide element includes an end that faces toothing of the second fitting part. A drive element is coupled to the at least one locking bolt for moving the at least one locking bolt along the adjustment track to lock the latch fitting with the toothing of the second fitting part. The at least one guide element includes a stop for limiting the adjustment track of the at least one locking bolt when moving the at least one locking bolt against the locking direction.