Universal Windscreen Wiper Adapter with Rotation Blocking
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Solution Overview
Problem
Current windscreen wiper adapters are not universal and require multiple varieties to accommodate different types of end pieces, leading to impracticality and inefficiency.
Innovation Solution
A universal adapter for windscreen wipers that connects to both lateral locking and U-shaped end pieces using rotation blocking means, such as retaining hooks and elastic snap-fitting mechanisms, allowing it to be mounted on various end pieces with different widths and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple varieties of adapters are produced to accommodate different types of end pieces, then compatibility with various end pieces is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The adapter body is designed with a standardized structure featuring a through-orifice for the cylindrical rod and lateral walls that can accommodate different end piece types. The rotation blocking means can engage with various end piece configurations (U-shaped, lateral locking, etc.), allowing a single adapter design to serve multiple functions across different wiper arm types, thereby eliminating the need for multiple specialized adapter varieties.
Solution Approach 2:
The adapter is divided into distinct functional components: the adapter body (receiving the cylindrical rod), the rotation blocking means (preventing unwanted rotation), and the lateral walls (providing structural support). This segmentation allows each component to be optimized independently while maintaining overall compatibility with various end piece types.
2Device complexity
If a standardized adapter design is used for all end pieces, then device complexity is reduced, but adaptability to different end piece types deteriorates
Solution Approach 1:
While the overall adapter body maintains a standardized design, the rotation blocking means incorporates specific geometric features (such as engagement surfaces and blocking elements) that are locally optimized to interact with different end piece types. This allows the standardized adapter to adapt to various configurations through localized interactions rather than requiring complete redesign.
3Reliability
If retention means are added to prevent rotation of the end piece, then reliability of the connection is improved, but device complexity increases
Solution Approach 1:
The rotation blocking means is integrated directly into the adapter body structure rather than being a separate component. The lateral walls and through-orifice configuration inherently provide both retention and rotation blocking functions, merging multiple functions into a unified structure that minimizes additional complexity while maximizing connection reliability.
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 universal adapter securely attaches to multiple types of end pieces, ensuring consistent performance and ease of use across different windscreen wiper arm designs, optimizing blade alignment and aerodynamic performance.
Implementation Method 1
elastic snap-fitting mechanisms
Data Source
AI summary
Adapter (126) for a windscreen wiper, particularly a motor vehicle windscreen wiper, the said adapter being intended to connect a wiper blade to a first end piece of a first driving arm of the lateral locking type and secured to a cylindrical rod defining an axis (Y) of articulation of the adapter with respect to the said blade, as well as a substantially U-shaped second end piece of a second driving arm, the said adapter comprising a longitudinal body comprising first and second lateral longitudinal walls (142a, 142b) that are substantially parallel and connected together by a transverse wall (144), the said body comprising at least one through-orifice (156) configured to accommodate the said cylindrical rod, characterized in that it further comprises rotation blocking means (170b) configured to collaborate with the said first end piece in order to secure the latter and the adapter in terms of rotation about the said axis (Y).