Flat-Blade Wiper Connector Housing for Aerodynamic Fluid Delivery
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Solution Overview
Problem
Existing windscreen wiper devices often struggle with effective cleaning due to inefficient distribution of washing fluid, leading to excessive liquid consumption and potential damage to the car's body. Additionally, mounting nozzles on oscillating arms can compromise aerodynamic performance.
Innovation Solution
A windscreen wiper device featuring a flat blade with an elastic carrier element and a flexible wiper blade with a longitudinal slit, integrated with a connecting device that allows for a pivotally connected rod-like extension. This design includes a housing for the rod-like extension, which enhances aerodynamics and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the nozzle is fixedly mounted on the bonnet for spraying washing liquid, then the nozzle structure is simple, but the washing fluid is emitted at a large distance from the windscreen resulting in excessive liquid consumption and ineffective cleaning
Solution Approach 1:
The patent combines the nozzle mounting with the oscillating arm assembly, integrating the fluid delivery system directly into the moving wiper mechanism. This allows the nozzle to be positioned close to the windscreen surface while moving with the wiper arm, ensuring washing fluid is applied precisely where needed and reducing overall consumption.
2Loss of substance
If the nozzle is mounted onto the oscillating arm to reduce liquid consumption, then washing fluid application efficiency improves, but the aerodynamic properties of the interconnection between wiper blade and rod-like extension are negatively influenced
Solution Approach 1:
The connecting device is divided into multiple segments: a first part connected to the wiper blade, a second part pivotally connected to the rod-like extension, and an integrated housing that accommodates the nozzle. This segmentation allows each component to be optimized independently - the housing provides aerodynamic streamlining while the pivotal connection enables flexible positioning of the nozzle close to the windscreen without compromising overall aerodynamics.
3Adaptability or versatility
If a pivotal connection is used between the connecting device and rod-like extension to improve adaptability, then the interconnection flexibility improves, but the structural stability and aerodynamic performance may be compromised
Solution Approach 1:
The connecting device incorporates a pivotal connection that allows dynamic adjustment of the rod-like extension relative to the wiper blade. This pivotal joint enables the assembly to adapt to different operating conditions and windscreen angles while maintaining aerodynamic efficiency through the streamlined housing design that encloses the moving parts.
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
The solution provides an aerodynamic, reliable, and controllable interconnection between the wiper blade and the rod-like extension, ensuring effective windscreen cleaning with reduced liquid consumption and minimizing the risk of damaging the car's body.
Implementation Method 1
an elastic, elongated carrier element (4), as well as an elongated wiper blade (2) of a flexible material, which can be placed in abutment with a windscreen to be wiped, wherein the wiper blade is biased by the carrier element, as a result of which it exhibits a specific curvature
Implementation Method 2
wherein the rod-like extension (6) can be pivotally connected to said first part (8) about said pivot axis
Data Source
AI summary
A windscreen wiper device of the flat blade type comprising an elastic, elongated carrier element, as well as an elongated wiper blade of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade includes at least one longitudinal slit, in which slit at least one longitudinal strip of the carrier element is disposed, which windscreen wiper device comprises a connecting device for a rod-like extension of an oscillating arm, wherein said rod-like extension can be pivotally connected to said connecting device about a pivot axis near a free end thereof, wherein said connecting device comprises a first part and a second part, wherein said rod-like extension of said oscillating arm can be pivotally connected to said first part about said pivot axis, with the interposition of said second part, wherein said first part is connected to said wiper blade and said second part is pivotally (preferably also detachably) connected onto said first part, wherein said second part comprises a channel arranged to receive said free end of said rod-like extension, with the special feature that said windscreen wiper device comprises a housing for said rod-like extension, wherein said housing is arranged to be connected to said second part, and wherein said housing comprises a channel to receive said rod-like extension, said channel of said housing in mounted position being co-axial with said channel of said second part.