Wing Assembly Self-Locking Guide for Stable Partial Opening
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Solution Overview
Problem
Existing sash assemblies face issues with unreliable operation and incorrect positioning due to complex designs, particularly in partially open positions, which can be compromised by wind gusts.
Innovation Solution
A wing arrangement with a frame and pivotable sash featuring an opening limiting device and self-locking mechanism, utilizing a switching rod, guide device, and pivot arm to limit pivoting to a defined partially open position, automatically locking the sash in place with a simple handle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex locking mechanism is used to secure the sash in partially open position, then the reliability of positioning is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The opening limiting device is designed to automatically lock the sash in the partially open position without requiring additional locking actions. The guide groove and pivot arm automatically engage when the sash reaches the defined position, and the detent mechanism with spring automatically holds the position, eliminating the need for complex manual locking operations.
Solution Approach 2:
A detent element acts as an intermediary between the pivot arm and the guide groove to provide automatic locking. The detent element with its spring mechanism mediates the engagement between moving and stationary components, enabling reliable positioning without complex direct coupling.
2Ease of operation
If a simple opening limiting device is used, then the ease of operation is improved, but the reliability of maintaining partially open position deteriorates due to wind gusts
Solution Approach 1:
The detent element is pre-loaded by a spring to be in engagement readiness before the sash reaches the partially open position. This preliminary positioning of the locking element ensures that as soon as the pivot arm engages the guide groove at the defined position, the detent automatically captures it, providing immediate stabilization against wind gusts without requiring additional user action.
3Adaptability or versatility
If multiple switching positions are provided for different opening angles, then the adaptability is improved, but the device complexity and risk of incorrect operation increases
Solution Approach 1:
The opening limiting device provides a defined partially open position that is sufficient for most ventilation needs, rather than offering multiple complex switching positions. The guide groove is designed with a specific geometry that naturally limits the sash to one primary partially open position, eliminating the need for multiple detents or complex switching mechanisms while still providing adequate adaptability for typical use cases.
Data Source
Figure 1
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Figure 4a~4b
AI summary
The invention relates to a wing arrangement (10) comprising a frame (12) and a wing (14) of a door or window pivotably mounted on the frame (12), wherein an opening limiting device (40) is provided which allows the wing (14) to pivot relative to the frame (12) only to a partially open position, wherein the opening limiting device (40) comprises a switching rod (46), a guide device (48) and a pivot arm (44), wherein the guide device (48) has a guide groove (52) closed at one end, wherein in the partially open position of the wing the pivot arm engages with a pin (50) in the guide groove and rests against its closed end (76), wherein a self-locking device (42) is provided which is configured to automatically lock the pin in such a way that the pin is caught in the guide groove when it rests against the closed end of the guide groove.