Flat Wiper Blade Adapter for Secure Quick Exchange
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wiper blade adapters are permanently connected and difficult to detach, limiting the ease of exchanging wiper blades on wiper arms and requiring complex structural designs for secure mounting.
Innovation Solution
A wiper blade adapter design featuring a second adapter element with a rectangular receptacle for the wiper arm end portion, allowing for independent connection to the wiper arm, with groove-shaped guides and latching elements for secure and tilt-free mounting, enabling easy assembly and compact device construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wiper blade adapter uses two adapter elements connected in an articulated manner that cannot be detached by the user, then the mounting security is improved, but the ease of operation for exchanging wiper blades deteriorates
Solution Approach 1:
The wiper blade adapter is divided into two separable adapter elements: a first adapter element that remains on the wiper blade body and a second adapter element that attaches to the wiper arm. This segmentation allows the second element to be easily detached and transferred to a new wiper blade during exchange, improving ease of operation while maintaining mounting security through the articulated connection design
2Reliability
If the wiper arm has a U-shaped cross section at the connecting region to cover the adapter element, then the mounting security is improved, but the device complexity increases
Solution Approach 1:
Instead of having the wiper arm cover the adapter element (traditional approach), the invention inverts the relationship by having the adapter element's second element actively engage with the wiper arm's end portion through a receptacle design. The groove-shaped guides and limit stops provide security without requiring the wiper arm to have a complex U-shaped cross section, thus reducing device complexity while maintaining mounting security
3Reliability
If the adapter element is permanently connected to the wiper blade body, then the mounting security is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The adapter is segmented into two elements that can be separately manufactured and then assembled. The first adapter element is connected to the wiper blade body, while the second adapter element can be independently attached to the wiper arm. This segmentation improves ease of manufacture by allowing independent optimization and assembly of components, while the articulated connection maintains mounting security during operation
Data Source
AI summary
A wiper blade for cleaning a vehicle windscreen is disclosed. The wiper blade has a wiper blade body which extends along a longitudinal axis, a wiper blade adapter which is connected to the wiper blade body, a first adapter element, connected to the wiper blade body, and a second adapter element, which can be connected to a wiper arm. The two adapter elements are arranged such that they can be pivoted in relation to one another in a direction, running perpendicularly to the longitudinal axis, in an axis of rotation. The wiper blade has a flat construction.