Motor-Driven Sliding Window Pinion Rack Mechanism
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Solution Overview
Problem
Existing sliding windows in vehicles are manually operated and lack a power-driven mechanism, requiring manual effort and space for handle mechanisms, which affects appearance and operational efficiency.
Innovation Solution
A drivable pinion is rotatably supported at the fixed component and engages with a rack on the moving component, allowing for power-driven operation, with the pinion being driven by a motor, and featuring guide rails and a toothed cam for smooth movement, ensuring the moving component is flush with the fixed component in the closed position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual operation mechanism is used for the sliding window, then the device complexity is reduced, but the ease of operation and productivity are worsened due to requiring manual effort and space for handle mechanisms
Solution Approach 1:
The patent replaces the manual mechanical operation system with an automated motor-driven system. A motor (25) is integrated into the fixed component to drive the pinion (3), eliminating the need for manual handle mechanisms and improving ease of operation while maintaining acceptable device complexity through compact motor integration.
Solution Approach 2:
The sliding window system provides self-service through automated motor control that can detect and respond to operational conditions. The motor control system automatically manages the window operation, including detecting obstacles and preventing jamming, reducing the need for manual intervention and supervision.
2Productivity
If a motor-driven pinion mechanism is added for power operation, then the productivity and ease of operation are improved, but the device complexity and construction space are increased
Solution Approach 1:
The patent merges multiple functions into integrated components to minimize device complexity. The motor (25) is integrated directly into the fixed component, the pinion (3) is rotatably supported within the guide rail structure, and the rack (2) is integrated into the moving component molding, creating a compact power-driven system that achieves high productivity without excessive complexity.
Solution Approach 2:
The patent employs nested positioning where the pinion (3) is rotatably supported at the fixed component within the guide rail structure, and the rack (2) is integrated into the moving component molding. This nested arrangement optimizes space utilization and reduces overall construction space while maintaining functional complexity.
3Shape
If the moving component is made flush with the fixed component in closed position, then the appearance is improved, but the manufacturing precision and alignment requirements are worsened
Solution Approach 1:
The patent employs feedback through guide rails (1) with guide grooves (11, 12) that provide precise alignment paths for the moving component. The guide structure ensures accurate positioning and flush alignment between the moving component and fixed component, compensating for manufacturing tolerances and achieving the desired appearance without excessively stringent manufacturing precision requirements.
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 power-driven sliding window with improved appearance, increased closing forces, enhanced comfort through remote operation, and reduced construction space, while preventing jamming with motor control and sensor integration.
Implementation Method 1
A drivable pinion (3) is rotatably supported at the fixed component (201) and engages into a rack (2) provided at the moving component (202)
Implementation Method 2
The pinion (3) is preferably drivable by a motor, in particular an electric motor (25)
Data Source
AI summary
A sliding window for a vehicle, in particular a motor vehicle, comprises a fixed component and a moving component. To provide a drivable sliding window, a drivable pinion (3) is rotatably supported at the fixed component and a rack (2) is provided at the moving component and the pinion (3) engages into it.