Movable Wiper Fluid Coupling for Low-Wear Blade Exchange
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Solution Overview
Problem
Existing wiper devices face challenges in simplifying the arrangement and installation of fluidic coupling elements, leading to complex and wear-prone mounting systems that complicate the rapid installation and removal of wiper blades.
Innovation Solution
The wiper device features a movable fluidic coupling element mounted on the wiper arm adapter, allowing for pivotable and transversely displaceable movement, along with a bearing recess and extension system, which enables simple and low-wearing operation and rapid exchange of wiper blades, and incorporates a heating element for preventing fluid freezing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fluidic coupling element is mounted fixedly on the wiper arm adapter, then the mounting structure is simple, but the wiper blade cannot pivot smoothly and experiences high wear
Solution Approach 1:
The fluidic coupling element is designed with movable mounting on the wiper arm adapter, allowing it to move together with the wiper blade during pivoting motion. This dynamic mounting enables smooth pivoting operation while reducing wear, as the fluidic coupling element follows the motion trajectory rather than being constrained by a fixed rigid connection.
2Reliability
If the fluidic coupling element is mounted movably on the wiper arm adapter, then the wiper blade can pivot smoothly with low wear, but the mounting structure becomes more complex
Solution Approach 1:
The mounting structure for the fluidic coupling element is merged with the existing wiper arm adapter structure. The fluidic coupling element is mounted on the wiper arm adapter in such a way that it moves together with the wiper blade, combining the mounting function with the existing structural elements rather than adding completely separate components.
3Productivity
If the wiper blade is mounted with complex fixing mechanisms, then the connection is secure, but the installation and removal process becomes time-consuming
Solution Approach 1:
The wiper blade assembly is segmented into modular components including the wiper blade, wiper blade adapter, and fluidic coupling element. The fluidic coupling element is designed as a separate movable component that can be easily attached and detached. This segmentation allows for rapid installation and removal while maintaining secure connection during operation through the movable mounting mechanism.
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 allows for a low-friction, low-wearing, and rapid installation/removal of wiper blades, reducing the risk of damage and ensuring continuous operation by maintaining fluid flow and preventing freezing, thus enhancing the operational reliability and ease of use.
Implementation Method 1
incorporates a heating element for preventing fluid freezing
Data Source
AI summary
A wiper device (10) having a wiper arm rod (14), a wiper blade adapter (20) which has a fluidic connecting element (30), a fluidic coupling element (34) for producing a fluidic connection to the fluidic connecting element (30), a fluid line (62), which is connected to the fluidic coupling element (34) and is provided for transporting wiping liquid along the wiper arm rod (14) to the fluidic coupling element (34), and a wiper arm adapter (16) which comprises a bearing unit (24) which is provided for mounting the wiper blade adapter (20) on the wiper arm adapter (16) so as to be pivotable about a wiper blade adapter pivot axis (22). The fluidic coupling element (34) is mounted movably on the wiper arm adapter (16).