Tool Case Locking Tab with Integrated Insert Tool Holder

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Solution Overview

Problem

Existing tool cases lack a secure and compact mechanism for storing and organizing operating tools, which can lead to disorganization and potential loss during transport.

Innovation Solution

A tool case design featuring a locking tab with an integrated operating tool keeper device, which includes a container section and fixing sections for secure storage and easy access to operating tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If operating tools are stored separately or loosely in the tool case, then accessibility is improved, but organization and protection during transport deteriorate

Engineering Contradiction:

Improveaccessibility to operating toolsVSAvoidorganization during transport

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The operating tool holder is integrated directly into the locking tab structure, merging the locking function and tool storage function into a single component. This integration ensures that operating tools are securely organized during transport while remaining easily accessible when needed, as the entire locking tab with attached tool holder can be quickly removed or accessed.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If the tool case structure is simplified, then manufacturing cost is reduced, but the ability to securely store and organize operating tools deteriorates

Engineering Contradiction:

Improvemanufacturing costVSAvoidsecure storage of operating tools

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The operating tool holder is formed as an integral part of the locking tab, eliminating the need for separate tool storage components. This merging approach reduces the total number of parts and assembly steps, lowering manufacturing costs while maintaining secure storage capability through the unified structural design.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The locking tab serves dual functions: it provides the locking mechanism for the tool case and simultaneously serves as the mounting structure for the operating tool holder. This multi-functionality reduces the overall component count and simplifies manufacturing while ensuring reliable tool storage.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Quantity of substance

If the locking tab is made larger to accommodate tool storage, then tool holder capacity is improved, but the compactness of the tool case deteriorates

Engineering Contradiction:

Improvetool holder capacityVSAvoidtool case compactness

Core Design Contradiction:

Quantity of substanceVSVolume of moving object

Solution Approach 1:

The operating tool holder is nested within or along the structure of the locking tab, utilizing the existing three-dimensional space of the locking tab. This nesting approach allows the tool holder to accommodate multiple operating tools without significantly increasing the overall size of the locking tab or the tool case, maintaining compactness while providing adequate storage capacity.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentEP4344830B1Tool case for a hand-held machine tool

Publication Date: 2025.05.14 ROBERT BOSCH GMBH

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AI summary

In a tool case (100) with a base element (102) and a lid (104), wherein the base element (102) and the lid (104) form a case interior for receiving at least one hand-held power tool (190), and with a locking tab (105) for locking the lid (104) to the base element (102), the locking tab (105) has an insert tool holding device (120) for holding at least one insert tool.