Drive Rod Mechanism for Frameless Vehicle Window Roller Blind
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Solution Overview
Problem
Frameless vehicle windows pose challenges for installing roller curtains due to the absence of fixing frames, leading to complex solutions and the lack of manual, active drive systems.
Innovation Solution
A drive device comprising a drive rod with a flexible drive means and a drive drum, allowing the roller curtain to be moved between cover and release positions using a combination of mechanical and optional spring-driven mechanisms, eliminating the need for push elements and cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If push cables and push elements are used to move the curtain rod in frameless windows, then the curtain can be positioned, but the device becomes complex and space-consuming
Solution Approach 1:
The invention extracts and eliminates the complex push cable system from frameless window applications by adapting a roller blind mechanism that uses a winding shaft and flexible drive means, thereby achieving curtain positioning without the harmful complexity of push cables
Solution Approach 2:
The roller blind mechanism is designed to serve multiple functions: it provides curtain positioning, structural support, and integration with frameless window architecture, replacing the need for separate push cable systems while simplifying the overall device
2Stability of the object's composition
If push cables are used on both sides to hold the curtain rod, then the curtain remains stable, but interior space is reduced and the system becomes elaborate
Solution Approach 1:
The invention transitions from a two-dimensional push cable arrangement (requiring cables on both sides) to a three-dimensional roller blind structure that utilizes vertical space and rotational movement, thereby achieving stable curtain rod positioning without occupying interior space
Solution Approach 2:
The flexible drive means and curtain fabric itself provide the necessary stability and support, replacing rigid push cables with flexible elements that can be integrated into the roller blind structure without requiring additional space
3Ease of manufacture
If manual roller solutions are used in frameless windows, then installation is simple, but active drive functionality is lacking
Solution Approach 1:
The invention transforms the static manual roller into a dynamic system with a winding shaft that can be actively driven, allowing the curtain to be moved between cover and release positions on demand while maintaining the simplicity of the roller blind structure
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 a cost-effective, simple, and compact integration of a driven roller curtain system for frameless windows, reducing parts and optimizing interior space, while providing reliable operation and reduced rattling.
Implementation Method 1
This flexible drive means is at least partially arranged to wrap around the drive drum in a force-transmitting manner to ensure transmission of a drive force to the drive rod
Implementation Method 2
This flexible drive means is at least partially arranged to wrap around the drive drum in a force-transmitting manner to ensure transmission of a drive force to the drive rod
Data Source
AI summary
Provided is a drive device for driving a roller device of a frameless vehicle window, including a drive rod with an upper roller end for the fixation to a curtain rod of a roller curtain of the roller device and a lower covering end, wherein the drive rod is movably supported between a cover position and a release position, further including a drive drum and an at least partially flexible drive fixed to the roller end or to the covering end of the drive rod and at least partially wraps around the drive drum in a force-transmitting manner for transmitting a drive force to the drive rod for a movement of the drive rod between the cover position and the release position during a rotation of the drive drum.