Integrated Motor Drive for Tilt-Turn Window Sash Alignment
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Solution Overview
Problem
Existing devices for opening, closing, and locking rotating and tilting windows or doors require large installation spaces, are costly, and suffer from alignment issues that lead to operational difficulties and potential damage due to the separate drive and deflection mechanisms.
Innovation Solution
A compact opening device with a drive and force transmission system, including a kink-resistant chain, that couples with a locking device via a drive rod and engagement element, allowing motorized or manual operation, and features a concealed design for easy assembly and precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate drive device with deflection mechanism is used, then the locking function can be achieved, but the installation space requirement increases significantly
Solution Approach 1:
The drive device is integrated directly into the frame structure, merging the drive housing with the frame itself. This eliminates the need for separate deflection devices and chain guides that were previously required, significantly reducing the installation space while maintaining the locking function.
Solution Approach 2:
The frame serves multiple functions: it provides structural support, houses the drive mechanism, and acts as the mounting structure for the opening device. This multi-functionality eliminates the need for separate deflection mechanisms and reduces the overall space requirement.
2Area of stationary object
If the drive is integrated into the frame, then the installation space is reduced, but alignment issues occur between the sash locking mechanism and the drive
Solution Approach 1:
Adjustment means are provided that allow for preliminary adjustment of the drive position relative to the sash locking mechanism. This enables alignment to be optimized before final installation, ensuring proper alignment between the drive and the locking device while maintaining the compact frame-integrated design.
3Reliability
If separate deflection device and chain guide are used, then the power transmission can be achieved, but the device complexity and cost increase
Solution Approach 1:
The deflection device, chain guide, and drive housing are merged into a single integrated unit mounted on the frame. This reduces the number of separate components, simplifies the overall structure, and lowers manufacturing costs while maintaining effective power transmission to the locking device.
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to an opening device (1) for a turn-tilt sash of a window or door (3), comprising a locking device (2) which is provided on the sash (4) and a base part (6) which is fixed to the frame (5) and on which a power transmission means (8) which is actuated by means of a motor drive device (7) is mounted, and comprises a connecting member (9) to the sash (4). The connecting member (9) is a drive rod connecting element (10), wherein the locking device (2) can be brought into a locking position and into an unlocking position by means of the motor drive device (7), the drive rod connecting element (10) is arranged at the free end (11) of the force transmission means (8) and can be coupled to a locking pin (15) which is movable with respect to the locking device (2), wherein the opening device (1) comprises a device (13) for aligning the base part (6) arranged on the frame (5) with the force transmission means (8) and the locking device (2) is fixed to the wing (4).