Reduced Arc Wiper System with Dynamic Connector
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Solution Overview
Problem
Conventional windshield wiper systems often leave unwiped zones, particularly in the lower center area of the windshield, due to their high arc motion path, which impairs visibility.
Innovation Solution
A reduced arc windshield wiper system with a connector assembly that adjusts the position of the wiper blade based on the angular position of the pivoting wiper arm, reducing the arc and enhancing coverage in the lower center area by altering the blade's height during the wiper stroke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional windshield wiper system uses a high arc motion path, then the wiper arm can cover a larger area, but it leaves unwiped zones in the lower center area of the windshield
Solution Approach 1:
The connector assembly dynamically adjusts the wiper blade height during the wiper stroke based on the angular position of the pivoting wiper arm. This dynamic adjustment allows the system to optimize coverage in the lower center area while maintaining overall wiped area, resolving the contradiction between coverage area and visibility quality.
Solution Approach 2:
The system changes the motion parameters of the wiper blade by altering its height position during the stroke through the connector assembly. This parameter change enables the blade to follow a reduced arc path that eliminates unwiped zones while maintaining effective coverage area.
2Length of moving object
If the wiper blade follows a high arc motion path, then it can reach broader areas, but it creates unwiped zones that impair visibility
Solution Approach 1:
The connector assembly introduces dynamic adjustment to the wiper blade's motion path, allowing it to change height during the stroke. This dynamic modification enables the blade to cover the lower center area effectively while maintaining adequate stroke range for broad coverage.
Solution Approach 2:
The connector assembly acts as an intermediary mechanism between the pivoting wiper arm and the wiper blade. It mediates the motion transmission by adjusting the blade height based on the arm's angular position, thereby eliminating unwiped zones without sacrificing stroke range.
3Device complexity
If the wiper system uses a fixed connector assembly, then the structure is simpler, but it cannot reduce the arc to improve lower center area coverage
Solution Approach 1:
The connector assembly is designed with movable components that allow dynamic adjustment of the wiper blade height. This dynamic capability enables arc reduction for improved visibility while maintaining reasonable structural complexity through the use of interconnected members and joints.
Data Source
AI summary
A windshield wiper system includes a pivoting wiper arm (110), a wiper blade (120) for wiping a surface (102), and a connector assembly (130) coupling the pivoting wiper arm (110) to the wiper blade (120). The connector system (130) includes a first connecting member (140) directly coupled to the wiper arm (110) and a second connecting member (150) directly coupled to the wiper blade (120). The first connecting member (140) and the second connecting member (150) are movably coupled to each other, wherein a position of the first connecting member (140) relative to the second connecting member (150) is based on an angular position of the pivoting wiper arm (110).