Vehicle Sliding Window Panel Drive Mechanism
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Solution Overview
Problem
Existing opening/closing devices for vehicle sliding-window panels have complex formations due to driving cables, leading to upsizing of the entire device due to the required routing space for cable movement outside the guide rails.
Innovation Solution
The device incorporates a slide driving mechanism with a lead screw rotating around a parallel axis to a guide rail, supported by rotatable first and second supporting portions, allowing the sliding-window panel to open and close using a motor-driven screw nut, which simplifies the structure and reduces device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a driving cable is used in the slide driving mechanism, then the sliding-window panel can be driven to open and close, but the device formation becomes complex and the overall device size increases due to required routing space outside the guide rails
Solution Approach 1:
The patent extracts and eliminates the driving cable from the system by replacing it with a lead screw mechanism. The lead screw is directly supported by the guide rail through integrated supporting portions, removing the need for cable routing spaces and external cable management structures, thereby simplifying the overall device formation.
Solution Approach 2:
The guide rail and lead screw supporting portions are merged into a single integrated structure. The first and second supporting portions are formed as integral parts of the guide rail, combining the guiding function and the lead screw support function into one component, which reduces device complexity and eliminates the need for separate cable routing spaces.
2Ease of operation
If a driving cable is used in the slide driving mechanism, then the sliding-window panel can be driven to open and close, but the overall device size increases due to required routing space outside the guide rails
Solution Approach 1:
The patent extracts and eliminates the driving cable from the system by replacing it with a lead screw mechanism. The lead screw is directly supported by the guide rail through integrated supporting portions, removing the need for cable routing spaces and external cable management structures, thereby simplifying the overall device formation.
Solution Approach 2:
The guide rail and lead screw supporting portions are merged into a single integrated structure. The first and second supporting portions are formed as integral parts of the guide rail, combining the guiding function and the lead screw support function into one component, which reduces device complexity and eliminates the need for separate cable routing spaces.
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 configuration simplifies the device formation and downsizes the entire system by directly supporting the lead screw on guide rails, enabling efficient operation and reduced complexity.
Implementation Method 1
a lead screw rotating around an axis parallel to a longitudinal direction of the one guide rail by driving the motor; and a screw nut which is screwed with the lead screw to linearly move in the longitudinal direction of the one guide rail by rotation of the lead screw
Data Source
AI summary
An opening/closing device for a vehicle sliding-window panel, includes a sliding-window panel opening and closing an opening part provided in a vehicle body, upper and lower guide rails to support the sliding-window panel to slide, and a slide driving mechanism fixed to one guide rail either the upper or lower guide rail. The slide driving mechanism includes a motor, a lead screw rotated by driving the motor, and a screw nut which is screwed with the lead screw to linearly move in a longitudinal direction of the one guide rail by rotation of the lead screw and is coupled with the sliding-window panel to operate the sliding-window panel to open and close by the linear movement. The one guide rail is integrally formed with a first and second supporting portions which rotatably support both end portions of the lead screw respectively.