Segmented Wind Deflector Wiper Blade Assembly
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Solution Overview
Problem
Existing wiper blade devices require complex assembly processes and materials, particularly in integrating wind deflector units, which complicates the connection with wiper arms and increases material usage.
Innovation Solution
The wiper blade device features separately formed wind deflector elements that form a form-fit connection with the wiper strip unit and adapter, along with a spring-elastic carrier element and longitudinal guide channels, allowing for a simple and secure assembly by engaging closing elements and latching means, thereby reducing material usage and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If wind deflector elements are integrated as a single unit with the wiper strip, then structural integrity is improved, but material usage and assembly complexity increase
Solution Approach 1:
The wind deflector unit is divided into multiple separately formed wind deflector elements (first wind deflector element, second wind deflector element) that can be assembled independently onto the wiper strip element. This segmentation reduces material usage while maintaining structural integrity through form-fit connections.
2Loss of substance
If wind deflector elements are separately formed, then material usage is reduced, but assembly complexity increases
Solution Approach 1:
The wind deflector elements are merged with the wiper strip element through form-fit connections where closing elements of the wind deflector elements engage with the wiper strip element. This merging approach simplifies assembly by eliminating the need for additional fastening operations while reducing material usage.
3Reliability
If complex connection methods are used to secure the wiper strip unit to the wiper arm, then connection reliability is improved, but assembly complexity increases
Solution Approach 1:
The wiper blade device employs self-service assembly mechanisms where the carrier element automatically engages with the wiper strip unit through form-fit connections, and the wind deflector elements self-secure through their closing elements. This eliminates the need for complex fastening operations while ensuring reliable connections.
4Strength
If traditional fastening methods are used to connect wiper components, then connection security is improved, but assembly time increases
Solution Approach 1:
The wiper blade adapter and wiper strip element are designed with pre-formed engagement features including guide channels, closing elements, and latching mechanisms. These preliminary structural preparations enable rapid assembly through simple insertion and engagement actions, reducing assembly time while maintaining strong connections.
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
This configuration enables a straightforward and secure assembly of the wiper blade device, ensuring a stable connection with the wiper arm and reducing material consumption while maintaining structural integrity.
Implementation Method 1
a spring-elastic carrier element (20), which forms a form fit with the wiper strip element (14) in a mounted state
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
The invention is based on a wiper blade device comprising a wiper strip unit (12) which has a wiper strip element (14), a wind-deflector unit (15) and a wiper lip (18). According to the invention, the wind-deflector unit (15) has at least two separate wind-deflector elements (16).