Window Locking Mechanism Manual Release for Jammed Drives
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Solution Overview
Problem
Existing window or door locking mechanisms fail to allow manual unlocking when the driving mechanism is defective or jammed, leading to potential damage when attempting to access and repair the mechanism.
Innovation Solution
A spring-activated manual release mechanism that can be easily accessed through a slot between the frame and leaf, allowing the tap to be moved from a locked to a non-locked position without using the driving mechanism, enabling the window or door to be opened without force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a driving mechanism is used to push the bolt between locked and non-locked positions, then the locking function is automated and reliable, but the mechanism cannot be manually opened when the driving mechanism fails or is jammed
Solution Approach 1:
A release lever is introduced as an intermediary component that can manually actuate the bolt movement. The release lever connects to the bolt through a connecting rod, allowing direct mechanical manipulation of the bolt without requiring the electric driving mechanism to be functional. This intermediary mechanism enables manual intervention when the automated system fails.
Solution Approach 2:
The system provides its own emergency release capability through the release lever and slot mechanism. When the driving mechanism fails, the user can access the release lever through the slot and manually move the bolt to unlock the window, making the system self-rescuable without requiring external tools or forced entry.
2Ease of operation
If the release mechanism is made accessible through a slot between the frame and leaf, then manual unlocking is easy and quick, but the slot must be designed to maintain weatherproofing while allowing access
Solution Approach 1:
The release mechanism is segmented from the main locking mechanism and positioned such that it can be accessed through a dedicated slot. The slot is specifically designed to accommodate the release lever while maintaining the overall weatherproof seal between the frame and leaf. This segmentation allows independent access to the release function without compromising the weatherproofing of the entire window structure.
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 safe and effortless unlocking and relocking of windows or doors even when the driving mechanism is defective or jammed, preventing damage and facilitating repairs without forcing the window or door.
Implementation Method 1
The release is excited by a spring, such that the release is automatically activated following a simple operation.
Data Source
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AI summary
A mechanism for locking a window (5) or door in a closed position, consisting of a bolt (11) with a tap (7) and a driving mechanism (12) to shift the bolt (11) with the tap (7) in an axial direction between two positions corresponding to a locked and a non-locked position respectively of the window (5) or door, characterised in that the mechanism (1) is provided with a release which makes it possible to move the tap (7) from the above-mentioned locked position into its non-locked position without using the driving mechanism (12).