Parallel Ventilator Window Locking Mechanism
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Solution Overview
Problem
Conventional devices for securing the open position of parallel opening windows and doors are complex, require significant space, and are visually unappealing due to their external pivoting levers, failing to reliably maintain the open position against external forces like wind.
Innovation Solution
A simplified locking mechanism with a pivotable locking element supported by a spring, which interacts with a stop to lock the sash in place, using a push rod actuated by a handle, creating a robust non-positive connection to prevent movement and maintain the open position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a drive mechanism with a pivoting lever is used to secure the open position, then the sash can be locked in the open position, but the device becomes complex and requires a relatively large amount of space
Solution Approach 1:
The patent extracts the essential locking function from the complex drive mechanism with pivoting lever. The new design uses a simple locking element that can be integrated directly into the control lever or window frame, eliminating the need for separate drive mechanisms while maintaining the open position securing function.
Solution Approach 2:
The control lever is designed to serve multiple functions: it controls the opening/closing motion and simultaneously provides the locking function through an integrated locking element. This multi-functionality eliminates the need for separate drive mechanisms and reduces overall device complexity.
2Reliability
If a drive mechanism with a pivoting lever is used to secure the open position, then the sash can be locked in the open position, but the device requires a relatively large amount of space
Solution Approach 1:
The patent removes the space-consuming pivoting lever from the design and retains only the essential locking element. This locking element can be compactly integrated into the control lever or window frame structure, significantly reducing the space required while maintaining the open position securing capability.
3Reliability
If a drive mechanism with a pivoting lever is used to secure the open position, then the sash can be locked in the open position, but the drive mechanism arranged on the outside of the window is visible from the outside and impairs the view through the window
Solution Approach 1:
The patent removes the externally visible pivoting lever and drive mechanism components. The locking element is designed to be integrated into the control lever or window frame in a location that is not visible from the outside, thus eliminating the visual impairment while maintaining the open position securing function.
4Device complexity
If a simple locking mechanism is used, then the device is cost-effective and space-efficient, but it may not reliably prevent movement against external forces like wind
Solution Approach 1:
The locking element is designed with a curved or angled locking surface that engages with a corresponding stop. This geometric design creates a mechanical advantage that provides strong resistance to external forces like wind pressure, while the overall mechanism remains simple and compact.
Solution Approach 2:
The locking element is positioned to engage with the stop before significant movement can occur in response to external forces. This preliminary engagement prevents the control lever from moving under wind pressure, providing reliable securing with a simple mechanism.
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 a cost-effective, space-efficient, and aesthetically pleasing method to securely hold the sash in its open position against external forces, enhancing the functionality and value of parallel opening windows and doors.
Implementation Method 1
the locking element being supported by a spring in such a way that Spring force is applied so that it is pushed from its locking position in the direction of its release position without external force being applied
Data Source
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AI summary
The invention relates to a device for setting an open position of a sash (1) of a parallel-opening window (2), a parallel-opening door or the like relative to the frame (3) of the parallel-opening window (2), the parallel-opening door or the like, wherein the sash (1) is connected to the frame (3) via at least one sash stay (4) comprising a sash stay lever (5) and a control lever (6) rotatably connected to the sash stay lever (5), wherein the frame-side end of the sash stay lever (5) is linearly movable and rotatably mounted on a frame-side guide (7) arranged on the frame (3) and the sash-side end of the sash stay lever (5) is rotatably mounted on a sash-side guide (8) arranged on the sash (1).wherein the frame-side end of the control lever (6) is rotatably mounted on the frame-side guide (7) and the sash-side end of the control lever (6) is linearly movable and rotatably mounted on the sash-side guide (8). In order to provide a means of securing the open position of the sash (1) of the parallel-opening window (2), the parallel-opening door, or the like against passive closing by external force, for example, in the form of wind, the invention proposes that the device has a locking mechanism with which the position of the sash-side end of the control lever (6) corresponding to the open position of the sash (1) relative to the sash-side guide (8) can be locked.