Window Lifter Guide Tube Assembly for Stable Cable Routing
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Solution Overview
Problem
Existing window lifter systems for motor vehicles with functionalized window panes face complexity in signal transmission and cable routing, leading to structural and mounting challenges, as well as noise emissions during door closure.
Innovation Solution
An assembly comprising a carrier with a guide rail, a displaceable adjustment part, and a flexible guide tube for electric cables, where the guide tube is deflected in a curve as the adjustment part moves, and a resilient securing element keeps the guide tube in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flexible guide tube is used for cable routing, then ease of installation is improved, but the guide tube may buckle and become unguided in certain window positions
Solution Approach 1:
The guide tube is pre-formed with a curved configuration that corresponds to the natural bending path when the window is in the raised position. This pre-curving prevents buckling by accommodating the tube's flexibility in a controlled manner, allowing easy installation while maintaining stable positioning throughout the window's range of motion.
2Stability of the object's composition
If a rigid guide device is used for cable routing, then guide tube positioning stability is improved, but structural complexity and mounting difficulty increase
Solution Approach 1:
The patent employs a flexible guide tube instead of a rigid guide structure. The tube's flexibility allows it to adapt to window movement while maintaining cable routing stability, thereby achieving reliable positioning without the structural complexity and mounting difficulty associated with rigid guide devices.
3Reliability
If complex cable routing systems are used for functionalized window panes, then signal transmission reliability is improved, but device complexity and space requirements increase
Solution Approach 1:
The flexible guide tube provides a simple yet effective cable routing solution that maintains signal transmission reliability for functionalized window panes. The tube's flexibility ensures smooth cable movement throughout the window's range of motion, achieving reliable signal transmission without the complexity and space requirements of traditional rigid routing systems.
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
This solution simplifies the assembly and reduces noise emissions by maintaining the guide tube's position and preventing buckling, while allowing for smooth operation of functionalized window panes.
Implementation Method 1
a resiliently or flexurally elastic securing element disposed at a securing position along said guide rail and adjacent to and/or spaced apart from said guide region, said securing element being configured for securing said guide tube against escape from said guide region
Data Source
AI summary
An assembly of an adjustment device of a motor vehicle includes a support on which at least one guide rail is disposed. An adjustment part, in particular for a functionalized window pane, is slidably guided on the guide rail. A flexible guide tube for guiding a cable, in particular for supplying power to and/or for controlling the window pane, extends between the guide rail and the support, in a guide region extending in the rail longitudinal direction. A resilient or flexurally elastic securing element for securing the guide tube against leaving the guide region is provided along the guide rail and adjacent the guide region in a securing position.