Segmented Wiper Blade Dovetail Mounting Mechanism
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Solution Overview
Problem
Windshield wiping devices face challenges in cost efficiency and durability due to varying climatic conditions and increasing cost pressures, requiring an improvement in their design and mounting systems for easier installation, maintenance, and replacement.
Innovation Solution
A windshield wiping device with a mounting unit featuring a first engagement element and a wiper blade with a second engagement element, allowing for easy attachment and detachment by a perpendicular movement, enabling economical production and maintenance, and utilizing a dovetail design for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wiper blade uses a traditional mounting system, then the manufacturing cost is reduced, but the ease of mounting and dismounting deteriorates
Solution Approach 1:
The wiper blade is divided into an upper part and a lower part that can move relative to each other along the lengthwise dimension. This segmentation allows the engagement elements to be positioned optimally for easy mounting while using simple, cost-effective manufacturing processes.
Solution Approach 2:
The first engagement element and second engagement element are designed to be introduced one into the other by a perpendicular movement. This nesting approach enables secure mounting through a simple single-movement action while maintaining manufacturing simplicity.
2Adaptability or versatility
If the wiper blade uses a rigid structure, then the manufacturing precision is improved, but the adaptability to different conditions deteriorates
Solution Approach 1:
The connection elements enable relative movement between the upper part and lower part of the wiper blade, introducing dynamic adaptability. This allows the wiper blade to adjust to different climatic conditions and window curvatures while maintaining sufficient structural precision through the constrained movement paths.
Solution Approach 2:
The wiper blade structure allows for changes in its geometric parameters (relative position of upper and lower parts) to adapt to different operating conditions. This parameter variability enables the blade to maintain effective contact with the window across varying temperatures and environmental conditions.
3Ease of repair
If the wiper blade is designed as a single piece, then the device complexity is reduced, but the ease of repair deteriorates
Solution Approach 1:
The wiper blade is segmented into replaceable upper and lower parts connected by movable connection elements. This segmentation enables easy replacement of damaged sections without replacing the entire blade, significantly improving ease of repair while maintaining manageable structural complexity through standardized connection mechanisms.
Data Source
AI summary
The present invention relates to a windscreen wiping device (40, 50) for a vehicle having an attachment element, in particular a motor vehicle. The windscreen wiping device (40, 50) comprises a mounting unit (41, 60) which is designed to be mounted on the attachment element, wherein the mounting unit (41, 60) has a first engagement element (42, 61), and a wiper blade (2) having an elongate upper part (10) and an elongate lower part (12) that are designed to be flexible at least in part. Also provided are a plurality of connecting elements (18) for connecting the upper part (10) and the lower part (12), wherein the connecting elements (18) are spaced apart from one another along a longitudinal extension (8) of the wiper blade (2). The connecting elements (18) are designed to permit a movement of the upper part (10) and of the lower part (12) relative to one another with a movement component along a longitudinal extension (8) of the wiper blade (2). Furthermore, the wiper blade (2) comprises an attachment part (43, 51) on the wiper blade, wherein the attachment part (43, 51) on the wiper blade has a second engagement element (44, 52), and wherein the first engagement element (42, 61) and the second engagement element (44, 52) can be introduced one into the other by a movement substantially perpendicular to the longitudinal extension (8).