Power Tool Torque Setting Indicator Design

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Solution Overview

Problem

Existing power tools lack an efficient and user-friendly method for adjusting and indicating torque settings, which can lead to improper usage and potential damage during operations.

Innovation Solution

A power tool design featuring a housing with a motor housing portion, a front housing portion, a rear housing portion, and a handle portion, equipped with a motor, a trigger, a torque adjustment interface, and a torque setting indicator that displays the selected torque setting on a side of the tool.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a torque adjustment interface is added to the power tool, then torque setting precision is improved, but device complexity increases

Engineering Contradiction:
Improvetorque setting precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The torque adjustment interface is merged with the existing housing structure, integrating the adjustment mechanism into the power tool's body rather than adding a separate external component. This reduces overall device complexity while maintaining precise torque adjustment capability through the integrated dial interface.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The torque adjustment interface serves multiple functions: it allows torque setting adjustment, displays the current torque setting through indicators, and provides tactile feedback through detent positions. This multi-functionality reduces the need for separate components, thereby managing device complexity while improving torque setting precision.

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

2Ease of operation

If a torque setting indicator is added to display torque settings, then user control is improved, but device complexity increases

Engineering Contradiction:
Improveuser controlVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The torque setting indicator uses color-coded or illuminated segments that change appearance based on the selected torque setting. This visual feedback system improves user control by making the current torque setting immediately identifiable, while the indicator is integrated into the existing housing structure to minimize added complexity.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The torque setting indicator automatically displays the current torque setting without requiring additional user input or complex control mechanisms. The indicator system is passively driven by the position of the torque adjustment dial, eliminating the need for separate sensors or electronic controls and thereby managing device complexity.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If torque adjustment and indication features are integrated into the housing, then ease of operation is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveease of operationVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The torque adjustment interface and indicator system are designed as modular segments that can be separately manufactured and then assembled into the housing. This segmentation allows each component to be optimized for its specific function while simplifying the overall manufacturing process through standardized assembly procedures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The torque adjustment dial and indicator components are nested within the housing structure, with the dial assembly fitting into a designated cavity and the indicator segments integrated into the dial or housing wall. This nesting approach reduces the total number of external components and simplifies assembly while maintaining ease of operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP4563287A1Torque setting indication for power tool
Publication Date: 2025.06.04 MILWAUKEE ELECTRIC TOOL CORP
  • EP4563287A1 patent drawingFigure 1
  • EP4563287A1 patent drawingFigure 2
  • EP4563287A1 patent drawingFigure 3

AI summary

A power tool including a housing with a motor housing portion, a front housing portion, a rear housing portion, and a handle portion extending from the motor housing portion. The power tool including a motor disposed within the motor housing portion. The power tool including a trigger located on a front side of the handle portion. The power tool including a torque adjustment interface for changing a torque setting of the power tool. The power tool including a torque setting indicator disposed on a side of the power tool and configured to indicate the torque setting of the power tool.