Ejector Mechanism for Multifunctional Tool Access

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Solution Overview

Problem

Conventional multifunctional combination tools require significant time and effort to access individual tools, often damaging fingernails and being impractical for users with short or fake nails.

Innovation Solution

A multifunctional combination tool system featuring a housing with an ejector mechanism that lifts tools to an elevated position, allowing for quick and easy access without the need for fingernail manipulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If tools are stored folded into a compact housing, then the tool size and portability are improved, but the ease of accessing individual tools deteriorates

Engineering Contradiction:

Improvetool housing volumeVSAvoidtool access ease

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The ejector mechanism performs preliminary action by automatically positioning all tool free ends above the housing top edge before the user selects a tool. This eliminates the need for users to manually dig into grooves or recesses to access tools, resolving the contradiction between compact storage and easy access.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The ejector mechanism acts as an intermediary between the compact housing and the tools, mediating the access process. It lifts the tools to an accessible position without requiring the housing to be larger or the access mechanism to be complex, thus resolving the contradiction.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If tools have grooves or recesses for selection, then the ease of separating tools is improved, but the harmful factors to the user (fingernail damage) increase

Engineering Contradiction:

Improvetool separation easeVSAvoidfingernail damage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The invention extracts the tool free ends from the confined space inside the housing by using the ejector mechanism to lift them above the top edge. This eliminates the need for users to insert fingernails into grooves or recesses to grip and separate tools, removing the source of fingernail damage while maintaining easy tool separation.

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If multiple tools are integrated into a single housing, then the versatility is improved, but the device complexity increases

Engineering Contradiction:

Improvetool functionality versatilityVSAvoidhousing structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The housing serves multiple functions: it stores multiple different tools, provides structural support, and works with the ejector mechanism to enable easy access. This universal design allows the housing to handle various tool types without requiring separate storage solutions for each tool, managing complexity while maintaining versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12304049B2Configurable multifunctional combination tool

Publication Date: 2025.05.20 SARAMA MICHELE

AI summary

A multifunctional combination tool system includes a housing, multiple tools, and an ejector mechanism. The housing has a base, a top edge, and sidewalls that extend perpendicularly from the base to the top edge. The tools have a connected end rotatably coupled to the housing and a free end. The ejector mechanism includes a plate disposed between the base and the tools and an actuator coupled to the plate and extending entirely through a channel in one of the sidewalls. The actuator selectively moves the plate to lift the tools from a stowed position within the housing to an elevated position above the top edge of the housing.