Magnetic Locking for Tiltable Window Sash Ventilation
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Solution Overview
Problem
Existing window ventilation systems are inefficient and lack reliable, secure locking mechanisms for maintaining a ventilation position, particularly when pivoting about a vertical axis, which can lead to issues with burglary security and unintentional window closure.
Innovation Solution
A swivel drive with a plunger that can be moved between retracted and extended positions, utilizing magnetic forces to securely hold the window sash in a ventilation position and automatically transition between closed and ventilation positions, combined with a locking system that prevents further opening and allows remote control operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a window sash is tilted vertically into a ventilation position, then ventilation efficiency is improved, but secure locking in this position becomes difficult
Solution Approach 1:
The patent replaces traditional mechanical locking mechanisms with a magnetic field-based locking system. The magnet mounted on the frame and the magnetic element on the sash interact through magnetic attraction to secure the sash in the ventilation position, eliminating the need for complex mechanical locks and providing reliable holding force without mechanical contact.
Solution Approach 2:
The patent utilizes magnetic field strength as a controllable parameter to achieve secure locking. By adjusting the magnetic force between the magnet and magnetic element, the system can maintain the sash firmly in the ventilation position while allowing easy manual override when needed, thus achieving both security and operability.
2Reliability
If a complex locking mechanism with multiple components is used, then locking reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the essential locking function from complex mechanical mechanisms and implements it through a simple magnetic field interaction. By removing unnecessary mechanical components and retaining only the core locking functionality through magnetic attraction, the system achieves reliable locking with minimal construction complexity.
Solution Approach 2:
The patent substitutes traditional mechanical locking components (latches, bolts, springs) with a magnetic field-based system. The magnet and magnetic element directly provide the locking force without requiring mechanical linkages, reducing the number of parts and simplifying the overall construction while maintaining locking reliability.
3Ease of operation
If a magnetic locking system is used, then ease of operation is improved, but visibility of window status from outside deteriorates
Solution Approach 1:
The patent replaces visible mechanical indicators (such as handle positions or locking lever orientations) with an invisible magnetic field-based status indication system. The magnetic locking mechanism operates without external visible indicators, providing ease of operation but requiring alternative methods for determining window status from the outside.
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 solution provides reliable, secure, and efficient ventilation while ensuring burglary-proof security by maintaining the window sash in a ventilation position without visible external indicators of its status, allowing for automatic and remote-controlled operation.
Implementation Method 1
the plunger has a magnet at its free end, which interacts with a counter element attached to the frame by magnetic force
Data Source
Figure 1a~1e
Figure 2a~2c
Figure 3
AI summary
The invention relates to a locking device for securing a tiltable and/or pivotable window sash in a ventilation position. The locking device comprises at least one magnet.