Pivoting Device Spindle Drive Deflection Lever Top-Hung Window
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Solution Overview
Problem
Manually operated top-hung windows face challenges with varying window sizes and masses, leading to increased logistic and production costs, and existing electrically driven solutions are limited by chain drives that restrict maximum pivotability and are aesthetically unappealing.
Innovation Solution
A pivoting device with a spindle drive and deflection lever system that allows for continuous adjustment of the window opening angle, featuring a brake mechanism for secure positioning and an integrated design that hides drive components, enabling efficient and elegant operation without the limitations of chain drives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a chain drive is used for electrical actuation of a pivoting window, then the ease of operation is improved, but the maximum pivotability is limited and the aesthetic appearance deteriorates due to visible components
Solution Approach 1:
The patent replaces the chain drive mechanism with a spindle drive system. The spindle drive converts rotational movement into linear displacement of a displacement element, which is then translated into pivoting motion through a deflection lever. This substitution eliminates the chain drive's limitation on maximum pivot angle while maintaining electrical actuation capability.
Solution Approach 2:
The invention transforms the transmission of motion from a two-dimensional chain linkage system to a three-dimensional spindle-displacement element-deflection lever system. The displacement element moves along the spindle axis (one dimension), the deflection lever pivots (second dimension), and the window sash rotates (third dimension), enabling greater pivotability without compromising ease of operation.
2Ease of operation
If manually operated windows use integrated tension springs for force balance, then the ease of operation is improved for small windows, but the production costs and logistics increase for varying window sizes
Solution Approach 1:
The patent replaces the mechanical tension spring force balance system with an electrical spindle drive system. The spindle drive provides controlled force application through motor actuation, eliminating the need for manually adjusted tension springs. This substitution standardizes the actuation mechanism across different window sizes, reducing production complexity and logistics costs while maintaining ease of operation.
3Shape
If the drive components are integrated into the window structure, then the aesthetic appearance is improved, but the device complexity increases
Solution Approach 1:
The patent nests the drive components within the window structure. The spindle drive and displacement element are housed within the window sash or frame, with the deflection lever connecting internal components to the external window pane. This nesting arrangement hides drive components from view, improving aesthetic appearance while organizing the complexity into a compact, integrated system.
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
The solution provides a robust, space-efficient, and aesthetically pleasing mechanism for top-hung windows that adapts to different window sizes, ensuring secure operation and easy access while maintaining maximum pivotability, reducing production costs, and enhancing user convenience.
Implementation Method 1
the second part (4) has a spindle drive (25) driven by the drive (20) for displacing the displacement element (30)
Implementation Method 2
A pivoting device with a brake arranged between the drive and the spindle drive enables the pivoting device to be fixed in a pivoted position
Implementation Method 3
a deflection lever is provided which connects the two parts to one another. The deflection lever enables the second part to be subjected to the torque required for pivoting
Data Source
AI summary
The invention relates to a pivoting device, in particular a top-hung window, comprising a first part (2; 4d), in particular a window frame, a second part (4; 2d), in particular an extension arm, that can be pivoted about a pivot axis (5) and that has a displacement element (30; 30a; 30b; 30c) movably attached to the second part (4; 2d) and a drive (20), in particular an electric motor, for moving the displacement element (30; 30a; 30b; 30c), and a deflecting lever (7; 7b; 7d) that connects the first part (2; 4d) and the second part (4; 2d).