Wiper Blade Adapter Elastic Latching and Securing Mechanism

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Solution Overview

Problem

Existing wiper blade adapter devices for motor vehicle windscreen wiper systems lack a secure and efficient coupling mechanism that simplifies assembly while ensuring a stable connection between the wiper blade adapter and the wiper strip unit.

Innovation Solution

The wiper blade adapter device incorporates a spring-elastic latching means and a securing means that are deflected in different directions during assembly, allowing for a secure and space-saving coupling, with the latching means pivoting parallel to the assembly direction and the securing means pivoting perpendicularly, ensuring a stable and reliable connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a spring-elastic latching means is used for coupling the wiper blade adapter to the wiper strip unit, then the coupling can be achieved with simple structure, but the security and stability of the connection is insufficient

Engineering Contradiction:
Improvecoupling mechanism structureVSAvoidconnection stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The coupling mechanism is divided into two independent but coordinated components: a latching means for initial coupling and a securing means for final stabilization. This segmentation allows each component to perform its specific function optimally while maintaining overall system simplicity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The securing means is arranged to act in a direction perpendicular to the latching means, adding a second dimensional constraint. This perpendicular arrangement enhances connection stability without increasing the complexity of the primary coupling mechanism

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If traditional assembly methods are used without a securing means, then the assembly process is simple, but the assembly security and reliability are insufficient

Engineering Contradiction:
Improveassembly simplicityVSAvoidassembly security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Both the latching means and securing means are spring-elastic components that automatically engage and lock into their respective positions during the assembly process. The components self-secure without requiring additional fastening operations, maintaining ease of assembly while improving reliability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The latching means performs the preliminary coupling action first, bringing the components into engagement. Subsequently, the securing means activates to provide final stabilization. This sequential preliminary action ensures reliable assembly without complicating the overall process

Inventive Principle:
Principle #10Preliminary action

3Volume of moving object

If the latching means and securing means are arranged in the same direction, then the structure is compact, but the latching means cannot be held securely in the locking position

Engineering Contradiction:
Improvecomponent arrangement spaceVSAvoidlocking position stability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The latching means and securing means are deliberately arranged asymmetrically in perpendicular directions rather than symmetrically in the same direction. This asymmetric perpendicular arrangement creates complementary constraint actions that securely hold the latching means in its locking position while maintaining compact overall dimensions

Inventive Principle:
Principle #4Asymmetry

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

This solution enables a secure, easy, and cost-effective assembly process with a stable and reliable coupling of the wiper blade adapter to the wiper strip unit, enhancing the assembly efficiency and reducing assembly costs.

Implementation Method 1

a wiper blade adapter which has at least one spring-elastic latching means for coupling to a wiper strip unit... a spring-elastic means for producing a latching connection, which is intended to be elastically deflected during assembly

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

at least one securing means which is intended to secure the at least one latching means in an assembled state... the at least one securing means is provided to be resiliently deflected from a locking position during an assembly process

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2683581B1Wiper blade adapter device, in particular for a motor vehicle windscreen wiper device
Publication Date: 2016.08.10 ROBERT BOSCH GMBH
  • EP2683581B1 patent drawingFigure 1~2
  • EP2683581B1 patent drawingFigure 3~4
  • EP2683581B1 patent drawingFigure 5~6

AI summary

The invention relates to a wiper blade adapter device, in particular for a motor vehicle windscreen wiper device, comprising a wiper blade adapter (10) which comprises at least one elastic latching means (12) for coupling to a wiper strip unit (14). According to the invention, said wiper blade adapter device comprises at least one securing means (16) which secures the at least one latching means (12) in a mounted state.