Multi-Profile Screwdriver for Handling Multiple Torx Sizes

Solution Overview

Problem

Existing screw tools require a different tool for each screw size due to their single torque transmission profile, leading to inconvenience and time consumption for craftsmen when handling screws of different diameters.

Innovation Solution

The screw tool is designed with at least two adjacent torque transmission profiles, allowing it to handle different screw sizes without the need for tool changes. The additional profile is arranged on the front surface of the primary profile, forming an axial extension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single torque transmission profile is used in the screwing tool, then the tool structure remains simple and manufacturing is easier, but the tool can only handle one specific screw size requiring frequent tool changes

Engineering Contradiction:

Improveability to handle different screw sizesVSAvoidstructure of the screwing tool

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The screwing tool is designed with multiple torque transmission profiles (first, second, and third profiles with different outer diameters) integrated into a single tool body, enabling one tool to handle multiple screw sizes (T40, T25, T15 Torx screws) that would traditionally require separate tools. This multi-functionality directly resolves the contradiction by improving adaptability while accepting increased structural complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple torque transmission profiles are merged into a single integrated tool body structure. The profiles are arranged adjacent to each other on the front side of the tool, combining what would traditionally be separate tools into one unified instrument. This merging approach enables handling of different screw sizes without requiring multiple separate tools.

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If multiple torque transmission profiles are integrated into one tool, then tool changes are eliminated and productivity increases, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improveefficiency of handling different screw sizesVSAvoidstructure of the screwing tool

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The integrated multi-profile tool eliminates the need to change tools when working with different screw sizes (T40, T25, T15), allowing craftsmen to handle all these screw types with a single tool. This directly improves productivity by removing tool change interruptions and maintaining continuous workflow across different screw sizes.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple torque transmission profiles are merged into a single integrated tool body structure. The profiles are arranged adjacent to each other on the front side of the tool, combining what would traditionally be separate tools into one unified instrument. This merging approach enables handling of different screw sizes without requiring multiple separate tools.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple torque transmission profiles are added to the tool, then the ability to handle different screw diameters improves, but the ease of manufacture decreases

Engineering Contradiction:

Improverange of screw sizes that can be handledVSAvoidmanufacturing of the screwing tool

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple torque transmission profiles are merged into a single integrated tool body structure. The profiles are arranged adjacent to each other on the front side of the tool, combining what would traditionally be separate tools into one unified instrument. This merging approach enables handling of different screw sizes without requiring multiple separate tools.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4552800A1Screw tool for handling screws

Publication Date: 2025.05.14 HOFMANN JOHANN

Figure 1

AI summary

The invention relates to a screwdriving tool (1) for handling screws, wherein the screwdriving tool (1) has a torque transmission profile (5) designed to be inserted into a torque receiving profile of a screw. The screwdriving tool (1) is provided with at least one further torque transmission profile (6) which is arranged adjacent to and neighboring the torque transmission profile (5).