Window Frame Gear Groove for Reduced Profile Height
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Solution Overview
Problem
Conventional window systems face challenges in meeting modern design and technological requirements, particularly in terms of space efficiency, visual aesthetics, and integration of electric drives, due to the need for a large cross-sectional area and visible wiring, which limits the reduction of profile height and increases installation complexity.
Innovation Solution
The window design shifts the drive mechanism to the window frame, allowing the gear groove to be formed on the frame instead of the sash, enabling a reduced profile height and concealed wiring, with optional motorized or manual operation and emergency actuation via a socket wrench.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the drive mechanism is integrated into the window sash, then the window can be operated manually or motorized, but the profile height must be increased to accommodate the drive components and wiring
Solution Approach 1:
The drive mechanism is extracted from the window sash and relocated to the window frame. The gear groove is formed on the frame instead of the sash, and the drive components are mounted on the frame side, eliminating the need to increase sash profile height while maintaining motorized operation capability
Solution Approach 2:
The drive system is repositioned from a vertical integration within the sash profile to a horizontal arrangement on the frame. The gear groove extends along the frame's rebate surface, and the connecting rod moves horizontally rather than vertically, allowing motorized operation without increasing the sash's vertical profile dimension
2Extent of automation
If the drive mechanism is integrated into the window sash, then the window can be motorized, but visible wiring from the frame to the sash disturbs the visual appearance
Solution Approach 1:
The wiring is extracted from the visible path between frame and sash. Electrical cables are routed through the window frame's internal cavities and reinforcement profiles, connecting the motor in the frame directly to the gear mechanism without external visible wiring, thus maintaining clean visual appearance while enabling motorized operation
3Length of stationary object
If the profile height is reduced to increase glazed area, then the aesthetic appearance and space efficiency improve, but the gear groove and drive mechanism cannot be integrated
Solution Approach 1:
The gear groove is extracted from the sash profile and relocated to the frame structure. The connecting rod engages with locking elements on the sash's outer peripheral side, allowing the drive mechanism to function with minimal interference with the sash profile dimensions, enabling reduced profile height while maintaining drive functionality
Solution Approach 2:
Instead of integrating the drive into the sash (traditional approach), the invention inverts the arrangement by placing the drive on the frame and having it act upon the sash from the outside. The gear groove is on the frame, and the connecting rod extends to engage locking elements on the sash, reversing the conventional integration approach
4Length of stationary object
If the gear groove is formed on the window frame, then the profile height can be reduced and wiring can be concealed, but the connecting rods must be slightly longer
Solution Approach 1:
The connecting rods are made slightly longer than the minimum required, extending beyond the gear groove engagement point to reach the locking elements on the sash's outer peripheral side. This excessive length is necessary to bridge the distance from the frame-mounted gear groove to the sash locking elements, but the extension is minimal and does not significantly impact the overall system
Data Source
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AI summary
A window (100) with a gear groove (12) comprises at least: - a frame (10) to be connected to a building component, with a stop bar (11.1) facing an exterior side of the building and a window sash (20) movably connected thereto, which can be opened to an interior side of the building and which is to be sealed against an interior visible surface (11.3) of the frame (10) with an overlap (21.3); - a gear unit (33) via which at least one locking element (31) can be displaced by means of a sliding element (32) and brought into engagement with at least one locking receiving element (35) fixedly attached to a rebate surface, wherein the sliding element (32) is mounted in a gear groove (12) which is recessed relative to the rebate surface (11.4). The gear unit (30) and the push element (32) with the locking element (31) are arranged in the frame (10), wherein the gear groove (12) is formed on the inner circumference of the frame (10).The locking element (35) is arranged on the outer perimeter side of the window sash (20) facing a window rebate (11.4, 21.4).