Wiper System Pivot Link for Panoramic Window Cleaning
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Solution Overview
Problem
Conventional wiper systems struggle to effectively clean complex vehicle windows, such as panoramic windows, which have portions extending in intersecting planes, due to their design being suited for planar surfaces rather than curved or multi-planar surfaces.
Innovation Solution
A wiper system with a mechanical link comprising a pivot link and a rotational link, where the pivot link rotates around one direction and the rotational link around another direction, allowing the wiper blade to maintain contact with both planar and curved surfaces of the panoramic window by adjusting its position through a mechanical link that ensures constant distance and angle, ensuring effective wiping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional wiper system is used, then it can effectively clean planar surfaces, but it cannot effectively clean complex vehicle windows with intersecting planes
Solution Approach 1:
The wiper system employs dynamic links (pivot link and rotational link) that allow the arm to change its orientation and adapt to different window geometries. The pivot link enables rotation around a first axis while the rotational link allows rotation around a second axis, creating a dynamically adjustable wiping mechanism that can conform to both planar and complex multi-plane windows
Solution Approach 2:
The invention adds an additional rotational dimension to the conventional wiper system. By introducing the pivot link with rotation around a first axis and the rotational link with rotation around a second axis (which may be perpendicular to the first), the system transitions from a single-plane wiping mechanism to a multi-dimensional mechanism capable of cleaning intersecting planes
2Adaptability or versatility
If a wiper system with multiple rotating links is added to clean complex windows, then adaptability improves, but the mechanical complexity increases
Solution Approach 1:
The wiper arm is segmented into multiple functional components: a drive attachment, a connecting body, a pivot link, a rotational link, and a wiper blade. Each segment has a specific function - the pivot link handles rotation around the first axis while the rotational link handles rotation around the second axis - allowing the complex motion to be divided into manageable, independent rotational movements
3Manufacturing precision
If the wiper blade maintains constant distance from the drive attachment, then wiping consistency is improved, but the range of motion on complex surfaces is limited
Solution Approach 1:
The mechanical link maintains a constant distance between the drive attachment and the wiper blade through a dynamic mechanism involving the pivot link and rotational link. This constant distance constraint ensures consistent wiping pressure and angle, while the simultaneous rotations around two different axes provide the necessary adaptability to reach complex window geometries
Data Source
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AI summary
The present invention relates about a wiper system for cleaning a vehicle window, comprising a drive attachment (2), an arm (8), a wiper blade (10) and a connecting body (12) located between the drive attachment (2) and the arm (8), the wiper system (1) comprising a pivot link (P) between the connecting body (12) and the drive attachment (2), the wiper system (1) comprising a rotational link (A) between the connecting body (12) and the arm (8), the rotational link (A) having an axis that extends along a first direction (F), the pivot link (P) having an axis that extends along a second direction (S), said first direction (F) and said second direction (S) being intersected, wherein the wiper system (1) comprises a mechanical link (14) between the drive attachment (2) and the arm (8) enforcing a rotation of the pivot link (P) around the second direction (S) upon a rotation of the arm (8) around the first direction (F).