Ejector Handles for Cartridge Decoupling

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Solution Overview

Problem

Existing systems with many pins in electrical connectors make it difficult to decouple cartridges from connected systems, lacking sufficient leverage or grip for easy removal.

Innovation Solution

A handle system comprising a cartridge housing, first and second elongate members, and corresponding lever arms, which provide a 90-degree angle and arcuate, concave edges for ergonomic grip and leverage, allowing independent or tandem pivoting to facilitate cartridge ejection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cartridges are physically secured to systems by contacts made through electrical connectors with many pins, then electrical connection reliability is improved, but cartridge decoupling difficulty increases

Engineering Contradiction:

Improveelectrical connection reliabilityVSAvoidcartridge decoupling difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The handle system is divided into multiple independent lever arms (first lever arm, second lever arm) that can pivot independently or in tandem, allowing the user to apply force at different points on the cartridge housing to facilitate decoupling from the electrical connector

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention adds a mechanical leverage dimension by introducing elongate members with lever arms that extend perpendicular to the cartridge housing, transforming the decoupling action from a direct linear pull to a rotational moment-based operation, thereby reducing the effort required to overcome the electrical connector's retention force

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Stability of the object's composition

If electrical connectors include many pins to ensure reliable connection, then connection stability is improved, but physical grip and leverage for removal deteriorate

Engineering Contradiction:

Improveconnection stabilityVSAvoidphysical grip and leverage

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The handle system acts as an intermediary mechanical device between the user's hand and the cartridge housing, providing arcuate and concave outer edges that conform to the user's fingers for enhanced grip, while the lever arms transmit and amplify the applied force to the cartridge's ejection mechanism

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The outer edges of the elongate members are designed with arcuate and concave curvature, creating an ergonomic shape that naturally fits the user's fingers, thereby improving physical grip and comfort during the decoupling operation

Inventive Principle:

Principle #14Spheroidality (Curvature)

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

The handle system enables efficient and ergonomic decoupling of cartridges from systems with complex electrical connectors, providing better leverage and grip to simplify the removal process.

Implementation Method 1

A handle system may be secured to a cartridge housing at an end opposing the location of the connector. The handle system may include wedge-lock handles to add leverage to a user when removing a cartridge

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Implementation Method 2

An outer edge of the elongate member may be arcuate and concave

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS20250120027A1Ejector handles

Publication Date: 2025.04.10 ITI ENGINEERING LLC

AI summary

A handle system for ejecting a cartridge including (1) a cartridge housing, (2) a first elongate member having a first end and an opposing second end, and (3) a first lever arm secured to the first end of the first elongate member to form a ninety-degree angle therewith, wherein the second end of the first elongate member may be pivotally connected to the cartridge housing.