Wiper Coupler Adapter Locking Mechanism for Bayonet Arms

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Solution Overview

Problem

Conventional wiper couplers for bayonet style wiper arms lack sufficient retention and are difficult to install, and they do not easily accommodate replaceable wiping elements.

Innovation Solution

A wiper coupler adaptor with a pair of sidewalls, a deck, and a locking mechanism that includes a cantilevered body and head to securely attach and detach the wiper assembly from the bayonet style wiper arm, providing a secure fit and easy installation and replacement of wiping elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional wiper coupler is used to connect the wiper assembly to a bayonet style wiper arm, then the wiper assembly can be attached to the wiper arm, but the retention is insufficient and the installation is difficult

Engineering Contradiction:
ImproveretentionVSAvoidinstallation difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The wiper coupler adaptor incorporates a spring-loaded locking mechanism that dynamically adjusts to engage with the wiper arm aperture. The spring provides continuous pressure to maintain engagement while allowing for easy installation through simple insertion and rotation motions, resolving the contradiction between secure retention and ease of installation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The wiper coupler adaptor serves as an intermediary component between the wiper assembly and the bayonet style wiper arm. It features a locking mechanism with a locking member that engages with the aperture in the wiper arm, providing both secure retention and simplified installation through its mediating engagement structure

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a conventional wiper coupler is used, then the wiper assembly can be connected to the wiper arm, but it does not easily accommodate replaceable wiping elements

Engineering Contradiction:
Improveaccommodation of replaceable wiping elementsVSAvoidcoupler structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The wiper coupler adaptor is designed as a segmented system where the wiping element can be independently replaced. The adaptor body remains on the wiper arm while the wiping element can be detached and replaced, providing adaptability for replaceable wiping elements without requiring complete replacement of the entire assembly

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wiper coupler adaptor is designed to be universal in its application, accommodating both permanent and replaceable wiping elements. The locking mechanism and aperture engagement design allow it to work with various wiper assembly types, providing multi-functionality without significantly increasing structural complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9533655B2Wiper coupler adapter and wiper assembly incorporating same
Publication Date: 2017.01.03 PGI NORTHSTAR LLC
  • US9533655B2 patent drawing
  • US9533655B2 patent drawing
  • US9533655B2 patent drawing

AI summary

A wiper coupler adaptor for use in releasably attaching a wiper assembly to a bayonet style wiper arm having an attachment end includes a pair of sidewalls each including a post that extends transversely toward the other to operatively engage structure of a wiper assembly and a deck disposed between the sidewalls that cooperates with a portion of the sidewalls to define a rest adapted to operatively receive the attachment end of the wiper arm. The sidewalls each include a ledge that extends transversely toward the other to operatively engage the attachment end of the wiper arm. The wiper coupler adaptor also includes a locking mechanism including a cantilevered body and a head disposed at a terminal end of the cantilevered body. The head includes a lip depending therefrom that is adapted to extend through an aperture in the base of the attachment end and receive a portion of the base of the attachment end to prevent undesired release of the wiper coupler adaptor from the attachment end of the wiper arm.