Adjustable Mate Assist Lever for Multi-Width Connectors

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Solution Overview

Problem

Existing mate assist devices for electrical connectors are limited to specific connector housing widths, leading to high production and logistics costs due to the need for differently sized devices.

Innovation Solution

A U-shaped mate assist device with adjustable width, featuring symmetrical arms with form-locking elements such as snap-fit hooks and protrusions, allowing for versatile connection to various connector housings through multiple interlocking positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a U-shaped lever is made rigid to withstand forces during activation, then strength is improved, but flexibility to be securely attached to the connector deteriorates

Engineering Contradiction:
ImprovestrengthVSAvoidflexibility
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The lever is divided into two separate arms that can be attached to the connector housing independently. Each arm can be secured separately, allowing the connector to accommodate both rigid structural requirements and flexible attachment needs. The segmentation allows each part to be optimized independently for its specific function.

Inventive Principle:
Principle #1Segmentation

2Reliability

If mate assist devices are designed for specific connector housing widths, then reliability is improved, but adaptability to various connector widths deteriorates

Engineering Contradiction:
ImprovereliabilityVSAvoidadaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The mate assist device with two adjustable arms can accommodate multiple connector housing widths by adjusting the spacing between arms. This universal design allows a single device type to serve multiple functions across different connector sizes, eliminating the need for multiple specialized devices while maintaining reliable operation for each specific connector width.

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

Solution Approach 2:

The lever arms are designed to be adjustable in position relative to each other, allowing the device to dynamically adapt to different connector widths. This adjustability transforms a static, width-specific device into a dynamic, multi-width compatible tool that maintains reliability across various applications.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple differently sized mate assist devices are produced for various connector widths, then adaptability is improved, but manufacturing complexity and logistics costs worsen

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

By designing a single mate assist device type with adjustable arm spacing, the invention consolidates multiple width-specific devices into one universal product. This reduces manufacturing complexity by standardizing production around a single design, simplifies inventory management, and lowers logistics costs while maintaining the ability to accommodate various connector widths through the adjustable mechanism.

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

Data Source

PatentEP4641846A1Low cost lever arrangement reusable for different connector width
Publication Date: 2025.10.29 APTIV TECHNOLOGIES AG
  • EP4641846A1 patent drawingFigure 1~2
  • EP4641846A1 patent drawingFigure 3~4B
  • EP4641846A1 patent drawingFigure 5A~6B

AI summary

The invention relates to a connector assembly that includes a housing and a U-shaped mate assist device. This device comprises two arms that can be connected. Each arm has one or more locking elements designed to engage with matching locking elements on the other arm, creating e.g. a form-locked connection. Additionally, these locking elements are positioned on an interlocking portion of each arm in such a way that they can interlock in at least two different positions. This feature allows the width of the U-shaped mate assist device to be adjusted as needed.