Windshield Wiper Adaptor With Rotating Two-Part Arm Lock

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Solution Overview

Problem

Existing wiper devices struggle with secure and efficient attachment and detachment of the wiper arm, compromising ease of installation and maintenance.

Innovation Solution

A wiper device with an adaptor comprising two members, a first member with an insertion hole for the wiper arm and a second member that is vertically fitted and laterally rotated to engage with the first member, facilitating secure coupling and easy installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional single-piece adaptor is used, then the structure is simple, but the attachment and detachment of the wiper arm becomes difficult and time-consuming

Engineering Contradiction:
Improveease of attachment and detachmentVSAvoidadaptor structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The adaptor is divided into two separate members: a first member connected to the support member with an insertion hole, and a second member that can be vertically fitted and laterally rotated to engage with the first member. This segmentation allows the wiper arm to be easily inserted and secured through a simple rotational locking action, significantly improving ease of attachment and detachment while maintaining structural integrity

Inventive Principle:
Principle #1Segmentation

2Reliability

If a secure connection mechanism is implemented, then the reliability of the connection improves, but the ease of installation deteriorates

Engineering Contradiction:
Improveconnection securityVSAvoidease of installation
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The first member is pre-configured with an insertion hole and engagement features that guide the wiper arm into the correct position. The second member is pre-designed with lateral rotation capability that automatically engages with the first member. This preliminary arrangement of engagement features ensures reliable connection while requiring minimal installation effort from the user

Inventive Principle:
Principle #10Preliminary action

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

Enables secure and efficient coupling of the wiper arm with the wiper device, enhancing ease of installation and maintenance by allowing for easy attachment and detachment.

Implementation Method 1

a support member configured to elastically support the adhering member so that the adhering member adheres to the window

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4245617B1Wiper device
Publication Date: 2026.03.04 CAP CORP
  • EP4245617B1 patent drawingFigure 1~2
  • EP4245617B1 patent drawingFigure 3~4
  • EP4245617B1 patent drawingFigure 5~6

AI summary

A wiper device is disclosed. The wiper device in accordance with the present disclosure configured for removing foreign substances that are stuck on a windshield and connected to a wiper arm (5) comprises: a contact member (10) configured for wiping out the foreign substances, a support member (20) made of an elastic material and configured for elastically supporting the contact member in such a way that the contact member is in close contact with the windshield, and an adaptor (100) configured for connecting the support member and the wiper arm, wherein the adaptor comprises: a first member (110) connected to the support member and formed with an insertion hole configured for insertion by the wiper arm, and a second member (150) vertically fitted into the first member and laterally rotated to be engaged with the first member to fix the wiper arm.