Window Regulator Driver with External Adjustment Mechanism
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Solution Overview
Problem
Conventional window lift mechanisms in vehicles do not allow for easy realignment of the window pane after installation in a vehicle door, making post-installation adjustments difficult or impractical.
Innovation Solution
A driver for the window lift mechanism featuring a flat receiving fork with a screw and a pressure piece that can be operated externally, allowing for non-positive fixation and adjustment of the window pane without direct access to the screw, enabling easy realignment by loosening the connection using a tool on the threaded nut's toothing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the window pane is tightly fixed to the driver using a screw, then the connection strength is improved, but the ease of realignment after installation deteriorates
Solution Approach 1:
The driver is segmented into a fixed mounting portion and a movable window pane holding portion. The pressure piece can be independently operated to adjust the window pane position without affecting the driver's mounting to the guide rail, enabling realignment while maintaining secure connection.
Solution Approach 2:
The pressure piece acts as an intermediary mechanism between the adjustment tool and the window pane. It translates external adjustment forces into controlled movements of the window pane within the driver, allowing realignment without direct manipulation of the fixed mounting screw.
2Reliability
If the screw is positioned to secure the window pane firmly, then the reliability of the connection is improved, but the accessibility for adjustment deteriorates
Solution Approach 1:
The adjustment function is extracted from the mounting screw. The pressure piece is provided with external openings that allow it to be operated independently from the screw, separating the adjustment operation from the fixed mounting operation and improving accessibility.
Solution Approach 2:
Instead of accessing the screw from the inside of the driver to adjust the window pane, the pressure piece is designed to be operated from the outside through openings. This inverts the access direction, making adjustment feasible after the driver is mounted in the vehicle door.
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 simple and effective realignment of the window pane after installation, maintaining a secure connection while allowing for adjustments without frequent access to the screw, improving usability and accessibility in vehicle door assembly.
Implementation Method 1
a screw for tightening the sides of the receiving fork
Implementation Method 2
a pressure piece that can be operated from the outside of the side extends into the gap between the sides
Data Source
AI summary
A driver (4, 5) of a window lift mechanism to simplify subsequent adjustment of a window pane. The driver (4, 5) includes a flat receiving fork (7) having first and second sides (9, 10). A screw (14) extends through the receiving fork (7) for pulling the first and second sides (9, 10) together. In the vicinity of the axis of the screw (14), the first side (9) includes a number of openings (19). A pressure piece (13), which can be operated from outside of the first side (9), protrudes through the openings (19) into a gap (8) between the first and second sides (9, 10). The pressure piece (13) can be displaced in a substantially parallel direction to the axis of the screw (14). A threaded nut (11) contacts the pressure piece (13) to operate the pressure piece (13).