Reusable Wiper Blade Adapter for Simplified Blade Replacement

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Solution Overview

Problem

Consumers face frustration and complexity in replacing aftermarket wiper blades due to the need to repeatedly identify and attach compatible adapters to various wiper arm configurations, with adapters often needing replacement less frequently than the blades.

Innovation Solution

A reusable wiper blade adapter system with male and female connectors and a locking mechanism allows for easy attachment and detachment of disposable wiper blades without reattaching the adapter to the wiper arm, utilizing engineered plastic that does not wear as quickly as the rubber squeegee.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If consumers use traditional wiper blade systems with adapters, then the adapter can accommodate various wiper arm configurations, but the consumer must repeatedly identify and reattach compatible adapters to different wiper arms, increasing complexity and frustration

Engineering Contradiction:
Improveadapter compatibilityVSAvoidinstallation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system divides the wiper blade assembly into separate functional components: a reusable adapter that remains on the wiper arm and a disposable blade assembly that attaches to it. This segmentation allows the adapter to be installed once and reused, eliminating the need to repeatedly identify and attach adapters when replacing blades.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adapter serves as an intermediary component between the wiper arm and the disposable blade assembly. It provides a standardized interface that simplifies the connection process, allowing various blade types to be attached to the same wiper arm through a single, universal adapter design.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If consumers replace the entire wiper blade including the adapter, then the blade can be renewed, but the consumer must go through the frustrating and confusing process of fitting the adapter again onto the complex wiper arm configurations

Engineering Contradiction:
Improveblade performanceVSAvoidreplacement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The blade assembly is designed as a disposable component that is replaced periodically, while the adapter is a reusable component that remains on the wiper arm. This allows consumers to replace only the worn blade without dealing with adapter reinstallation, reducing time and frustration.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The adapter is pre-installed on the wiper arm during initial setup, creating a permanent mounting interface. This preliminary action eliminates the need to repeatedly attach adapters during subsequent blade replacements, significantly reducing replacement time and complexity.

Inventive Principle:
Principle #10Preliminary action

3Duration of action of stationary object

If adapters are made of engineered plastic, then they do not wear as quickly as the rubber squeegee, but they still need to be replaced less frequently which creates inconsistency in replacement schedules

Engineering Contradiction:
Improveadapter lifespanVSAvoidreplacement scheduling
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The system adopts different replacement cycles for different components: the durable engineered plastic adapter remains on the wiper arm for extended periods, while the rubber squeegee blade is replaced periodically as a disposable item. This differential approach simplifies scheduling by establishing a regular blade replacement routine without worrying about adapter wear.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP4105088B1Wiper blade adapter attachment system
Publication Date: 2025.07.02 ILLINOIS TOOL WORKS INC
  • EP4105088B1 patent drawingFigure 1A~1E
  • EP4105088B1 patent drawingFigure 2A~2B
  • EP4105088B1 patent drawingFigure 3A~3C

AI summary

A system and method are provided that enables windshield wiper blades to be replaced without the complexity of removing and reattaching adapters to the wiper arms with every wiper blade replacement cycle. The wiper blade adapter is reusable and stays connected to the windshield wiper arm while providing a simple connecting system that enables the attachment of the wiper blade to the base of the adapters. The adapters are made of engineered plastic that does not wear as quickly as the rubber squeegee and does not need to be replaced as often as the wiper blade. The reusable wiper blade adapter employs a simple mating connector on the wiper blade that provides for an intuitive motion to attach and detach from the base of the adapter thus providing for a simpler blade replacement process.