Streamlined Flat Windscreen Wiper With Integrated End Piece Mounting
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Solution Overview
Problem
Existing windscreen wiper technologies face challenges in optimizing aerodynamics and assembly efficiency, particularly in the design of flat wipers with stiffening members, which can be cumbersome and require complex mounting systems.
Innovation Solution
A streamlined flat windscreen wiper design featuring a curving stiffening member and innovative end pieces and terminal caps with protruding stops and ramps, allowing for secure attachment and angular displacement, while simplifying the mounting process and enhancing aerodynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a flat wiper with stiffening members is used, then the wiper blade can be held flattened against the window, but the assembly becomes cumbersome and requires complex mounting systems
Solution Approach 1:
The end piece integrates multiple functions: it houses the stiffening member, provides the mounting interface for the adapter assembly, and incorporates stops and ramps for positioning. This merging of functions reduces the number of separate components and simplifies the overall mounting system while maintaining the flatness of the wiper blade against the window.
2Object-affected harmful factors
If a streamlined portion is added to optimize aerodynamics, then aerodynamic performance improves, but the structure becomes more complex
Solution Approach 1:
The streamlined portion is applied locally to the end piece and adapter assembly rather than the entire wiper structure. This localized streamlining optimizes aerodynamic performance in the critical front-facing areas while keeping the rest of the wiper blade structure simple and functional.
3Reliability
If protruding stops and ramps are incorporated for secure attachment, then attachment security improves, but manufacturing complexity increases
Solution Approach 1:
The stops and ramps are integrated directly into the end piece as molded features rather than separate components. This merging of attachment features into the base structure ensures secure attachment while simplifying manufacturing, as the stops and ramps are formed in a single molding operation rather than requiring separate machining or assembly steps.
Data Source
AI summary
Streamlined flat windscreen wiper (1), in particular of a vehicle, characterized in that it comprises: a longitudinal wiper blade (8), at least one longitudinal stiffening spine (6), a longitudinal member (7) for holding said wiper blade and said stiffening spine, a longitudinal fairing (2, 3) comprising two end caps (3) and a central mount (2) extending between the end caps and being linked thereto, the mount comprising means for fixing to said stiffening spine or to said member for holding this spine.