Tilt-Turn Window Locking With Motor-Assisted Lever Tilting
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Solution Overview
Problem
Existing building windows lack a seamless integration of electric motor assistance and manual operation for adjusting the locking mechanism, particularly for tilt-and-turn functionality, resulting in inconsistent user experience and limited flexibility.
Innovation Solution
An electromechanical adjustment device with a spindle drive and lever mechanism that allows electric motor-assisted adjustment of the locking mechanism between different positions, including a locking, pivoting, and tilting function, while maintaining manual operation capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an electric motor is integrated into the adjustment device to assist locking mechanism operation, then the smoothness and consistency of electric motor-assisted tilting is improved, but the complexity of the adjustment device increases
Solution Approach 1:
The patent combines the electric motor assistance with the existing manual adjustment device, merging electromagnetic actuation with mechanical lever mechanisms. The electromagnetic actuator integrates with the lever mechanism to provide motor assistance while preserving manual operation capability, thus improving ease of operation without requiring a completely separate motorized system.
Solution Approach 2:
The adjustment device is designed to perform multiple functions: it can operate manually through the lever mechanism and also provide electric motor assistance when needed. This multi-functionality allows the same device to cater to both users preferring manual control and those desiring motor assistance, improving ease of operation across different user preferences while avoiding the need for separate systems.
2Adaptability or versatility
If the adjustment device is designed to allow both electric motor assistance and manual operation, then the flexibility and user convenience is improved, but the reliability of the locking mechanism may be compromised due to potential interference
Solution Approach 1:
The lever mechanism is designed with dynamic characteristics that allow it to differentiate between manual and motor-assisted forces. The mechanical advantage and force transmission paths are configured so that motor assistance provides smooth, controlled movement while manual operation maintains direct mechanical control, ensuring the locking mechanism remains reliable regardless of the operation mode.
Solution Approach 2:
The lever mechanism acts as an intermediary between the electromagnetic actuator and the locking mechanism. It translates and regulates the motor's force output to match the requirements of the locking mechanism, ensuring smooth and consistent operation. Simultaneously, it allows direct manual operation to bypass the motor system when needed, maintaining reliability through proven mechanical control.
3Productivity
If the lever mechanism is used to tilt the window sash with electric motor assistance, then the productivity of the adjustment operation is improved, but the device complexity increases due to the additional linkage requirements
Solution Approach 1:
The adjustment device is segmented into functional modules: the electromagnetic actuator, the lever mechanism, and the locking mechanism. Each module performs a specific function, allowing the motor assistance to be applied selectively to the tilting operation without requiring complete motorization of the entire window system. This modular segmentation improves productivity for motor-assisted operations while keeping the overall device complexity manageable.
Solution Approach 2:
The patent partially replaces manual mechanical effort with an electromagnetic actuator for the tilting operation. The motor provides automated force application, improving the productivity and consistency of the adjustment operation. However, the lever mechanism and linkage systems are retained to provide mechanical advantage and control, avoiding the need for a completely motorized system with higher complexity.
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
Enables smooth, consistent electric motor-assisted operation of the window sash tilt and provides manual override, ensuring user convenience and flexibility in adjusting the window's position without interference from the adjustment mechanism.
Implementation Method 1
an electromechanical adjustment device (2) having a spindle drive (22) with an electric motor (220) and a spindle (222) that is rotatable about an adjustment direction (V) and is driven by the electric motor (220)
Implementation Method 2
The linkage between the lever element and the window sash can be disengaged to allow the window sash to pivot about its first pivot axis independently of the lever mechanism
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
A building window (1) comprises a frame (10), a window sash (11) adjustable to the frame (10) and resting against the frame (10) in a closed position, a locking device (13) arranged on the window sash (11) and an electromechanical adjustment device (2) arranged on the frame (10) for adjusting the locking device (13).The adjustment device (13) is provided to have a lever mechanism (20) with a lever element (200) pivotably mounted on the frame (10), wherein the lever element (200) is coupled to the window sash (11) in a third position of the locking device (13) such that by adjusting the lever element (200) the window sash (11) can be pivoted about a second pivot axis (K) to the frame (10), whereas in a second position of the locking device (13) the lever element (200) is not coupled to the window sash (11), so that the window sash (10) can be pivoted about a first pivot axis (D) to the frame independently of the lever element (200).