Wiper Blade Form-Fit Connection for Rapid Assembly
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Solution Overview
Problem
Existing wiper blade devices require complex and time-consuming assembly processes due to the lack of secure and efficient connections between the wind deflector element, wiper strip element, and wiper blade adapter, leading to instability and potential misalignment.
Innovation Solution
The wiper strip element forms a form-fit connection with the wind deflector element and wiper blade adapter, utilizing a spring-elastic carrier element and longitudinal guide channel to secure the components, ensuring a simple, quick, and stable assembly by preventing movement in the longitudinal direction through closing elements and latching means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connection methods are used between wind deflector element, wiper strip element, and wiper blade adapter, then the assembly process becomes complex and time-consuming, but the connection stability is improved
Solution Approach 1:
The wiper blade device is divided into modular components (wind deflector element, wiper strip element, wiper blade adapter) that can be assembled separately and quickly connected through form-fit interfaces, reducing overall assembly time while maintaining stability
Solution Approach 2:
The form-fit connections are designed to self-align and self-secure the components together without requiring additional fastening operations or complex assembly tools, enabling rapid assembly while ensuring stable connections
2Ease of manufacture
If traditional connection methods are used between components, then assembly is simpler, but connection stability and alignment precision deteriorate
Solution Approach 1:
The form-fit interfaces feature asymmetric geometries with specific male and female connection elements that provide unique alignment paths, ensuring precise positioning of components during assembly while maintaining manufacturing simplicity
Solution Approach 2:
The connection elements are designed to automatically align and position components correctly during the assembly process itself, eliminating the need for separate alignment operations or complex tooling while ensuring precise positioning
3Productivity
If form-fit connections are used between wiper strip element and wind deflector element, then assembly speed is improved, but connection stability may deteriorate
Solution Approach 1:
The form-fit connections are designed with self-securing features that automatically engage and lock components together during the rapid assembly process, ensuring stable connections are formed as part of the quick assembly operation itself
Solution Approach 2:
The connection elements incorporate curved or rounded geometries that facilitate smooth engagement and secure interlocking during rapid assembly, maintaining connection stability while enabling fast assembly operations
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 solution enables rapid and secure assembly of the wiper blade device, enhancing stability by forming a positive fit between components, allowing for easy coupling with a wiper arm and preventing relative movement, thus improving the overall assembly efficiency and device stability.
Implementation Method 1
a spring-elastic carrier element (20), which forms a form fit with the wiper strip element (14) in a mounted state
Implementation Method 2
a carrier element (20), which is intended to connect the wind deflector element (16), the wiper strip element (14) and the wiper lip (18) in a form-fitting manner
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The invention relates to a wiper blade device comprising a wiper strip unit (12) which has a wind-deflector element (16), a wiper lip (18) and a wiper strip element (14) which comprises a longitudinal guide channel (24) for a support element (20). According to the invention, the wiper strip element (14), in a mounted state, forms an interlocking connection with the wind-deflector element (16).