Wiper Arrangement Guide Element for Error-Free Installation

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Solution Overview

Problem

Existing wiper arrangements for vehicles lack efficient mechanisms for quick and error-free installation and removal of wiper blades, often resulting in potential damage to the connecting units and fluid channels during the process.

Innovation Solution

The proposed wiper arrangement incorporates a securing and/or guide unit with a mechanical stop and guide element that interacts with the connecting unit, allowing for secure positioning and easy rotation-based separation from the wiper arm, preventing unintentional damage and ensuring proper fluidic connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the wiper blade is connected to the wiper arm without a securing and guide unit, then the structure is simpler, but the installation and removal process becomes complex and error-prone, potentially damaging the connecting unit and fluid channels

Engineering Contradiction:

Improveinstallation and removal of wiper bladeVSAvoidstructure of connecting unit

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The guide element is designed to preliminarily guide the connecting unit into the correct position and orientation before the actual connection is made. This preliminary guidance ensures that the connecting unit and fluid channels are properly aligned, preventing damage during installation and removal operations

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The securing element acts as a mechanical stop that prevents over-travel or excessive force during the connection process. By providing this protective constraint beforehand, the design cushions against potential damage to the connecting unit and fluid channels that could occur during improper installation or removal

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If a securing and guide unit is added to the wiper arrangement, then the connection becomes more secure and error-free, but the device complexity increases

Engineering Contradiction:

Improveconnection securityVSAvoidstructure of wiper arrangement

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The securing and guide functions are segmented into distinct elements: the guide element provides directional guidance, while the securing element provides mechanical stopping and retention. This segmentation allows each element to perform its specific function efficiently without requiring a complex integrated mechanism

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The guide element serves as an intermediary between the connecting unit and the wiper blade adapter, mediating the connection process by ensuring proper alignment and guiding the connecting unit into the correct position before final engagement occurs

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11541848B2Wiper arrangement

Publication Date: 2023.01.03 ROBERT BOSCH GMBH

AI summary

A wiper arrangement having at least one securing and/or guide unit (34a; 34b; 34c), which has at least one securing element (36a; 36b; 36c) with which a connecting unit (24a; 24b; 24c) can be brought into contact when a wiper blade (14a; 14b; 14c) moves relative to a wiper arm (18a; 18b; 18c), and which has at least one guide element (44a; 44b; 44c), which guides the connecting unit (24a; 24b; 24c) when the wiper blade (14a; 14b; 14c) moves relative to the wiper arm (18a; 18b; 18c).