Actuating Motor Fitting Device for Window Sash Positioning
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Solution Overview
Problem
Existing window and door fitting arrangements are complex and error-prone, requiring intricate wiring for power supply and complex construction, which complicates their operation and reliability.
Innovation Solution
A simplified design where the actuating motor and components are positioned at the lower edge of the window frame, allowing for direct electrical contact and a driver element that interacts with the locking rod to facilitate easy actuation, with a control unit that ensures discrete positions and automatic return to a neutral state, and a blocking mechanism for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the actuating motor and components are positioned at the lower edge of the window frame, then the power supply is simplified and construction is easier, but the wiring complexity increases when the sash is in a tilted state
Solution Approach 1:
The patent employs a flexible cable connection between the frame and sash that can dynamically adapt to different sash positions (closed, tilted, open). The flexible cable maintains electrical connectivity while accommodating the geometric changes during sash movement, particularly in the tilted position where rigid wiring would fail or become overly complex.
2Reliability
If a complex fitting arrangement is used to achieve reliable operation, then operational reliability improves, but the construction becomes more complex and error-prone
Solution Approach 1:
The driver element serves multiple functions: it acts as a drive pin for the locking bar, a positioning element for the sash, and a coupling mechanism between the actuating motor and the locking system. This multi-functionality reduces the number of separate components needed, simplifying construction while maintaining operational reliability through integrated design.
Solution Approach 2:
The driver element acts as an intermediary component that mediates between the actuating motor and the locking bar. It transfers and controls the force transmission, enabling reliable operation while simplifying the overall construction by providing a single points of interaction rather than multiple direct connections.
3Device complexity
If manual actuation is used for the locking bar, then the construction remains simple, but remote-controlled actuation and ease of use are reduced
Solution Approach 1:
The patent replaces the purely manual mechanical actuation system with an electrically actuated system using an actuating motor. This substitution enables remote-controlled operation and significantly improves ease of use, while the overall construction remains relatively simple through the use of a straightforward motor-drive mechanism integrated into the existing locking bar structure.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
The fitting arrangement (10) has locking rod (12) on wing side, a mechanical, particularly manually operable actuating unit and an actuating motor (18), where the locking rod is displaceable and is brought into two functional positions by the actuating motor and by the actuating unit. The actuating motor and components are formed for drivingly effective coupling of the actuating motor with the locking rod for the arrangement in an area of a lower edge of a wing, particularly in a casement frame.