Flat Wiper Blade Fairing Mount for Pressure Distribution
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Solution Overview
Problem
Existing flat wiper blade technologies face challenges in maintaining consistent pressure and aerodynamic efficiency, particularly in distributing force along the blade's length and ensuring secure attachment to the windshield, while also being prone to manufacturing tolerances and assembly complexities.
Innovation Solution
The development of a streamlined flat wiper blade with a central mount and end cap design featuring projecting abutments, elastic snap-fastening mechanisms, and aerodynamic deflectors, which includes a fairing with interconnected longitudinal side walls and reinforcing ribs to enhance attachment and aerodynamics, and a method for mounting that involves removable stiffening means to facilitate adapter installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flat wiper blade uses a mechanical connector and adapter assembly for attachment, then the blade can be secured to the windscreen wiper arm, but the assembly complexity increases and manufacturing precision requirements increase
Solution Approach 1:
The patent combines the mechanical connector and adapter into a single integrated end fitting component. The end fitting directly receives the stiffening vertebra and provides attachment functionality without requiring separate adapter parts, thereby reducing assembly complexity while maintaining secure attachment to the windscreen wiper arm.
Solution Approach 2:
The end fitting is designed to perform multiple functions: it houses the stiffening vertebra, provides structural support at the blade end, and enables attachment to the windscreen wiper arm. This multi-functional design eliminates the need for separate specialized components, reducing both complexity and manufacturing precision requirements.
2Stability of the object's composition
If a flat wiper blade uses a stiffening vertebra to maintain blade shape and pressure, then the blade application on the window is improved, but the device complexity increases
Solution Approach 1:
The end fitting is integrated with the stiffening vertebra housing, combining the support function and structural function into a single component. This integration maintains the blade's shape stability and pressure distribution while reducing overall structural complexity by eliminating separate support mechanisms.
3Adaptability or versatility
If the end cover is allowed to move relative to the flat brush, then adjustment flexibility is improved, but the reliability of the connection decreases
Solution Approach 1:
The end cover acts as an intermediary element between the end fitting and the external environment. It provides controlled movement or adjustment capability while maintaining a reliable sealed connection, mediating between the need for flexibility and the requirement for connection reliability.
Data Source
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AI summary
A flat, faired wiper blade (1), in particular for a vehicle, characterized in that it comprises: a longitudinal wiping blade (8), at least one longitudinal stiffening vertebra (6), a longitudinal retaining element (7) for said wiping blade and said stiffening vertebra, a longitudinal fairing (2, 3) comprising two end caps (3) and a central mount (2) extending between the end caps and being connected to them, the mount comprising means for attachment to said stiffening vertebra or to said retaining element for said vertebra, and each cap comprising means for guiding in translation of end parts of said element.