Integrated Dust Extractor With Collapsible Tube for Power Tools

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Solution Overview

Problem

Existing dust collection systems for power tools are often bulky, separate from the tool, and costly due to duplicate components, limiting maneuverability and increasing the overall weight and size of the tool system.

Innovation Solution

Integration of a dust collection assembly within the power tool, sharing components like the motor and fan, and using a collapsible suction pipe to reduce parts and enhance maneuverability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate dust collection system is used with the power tool, then dust collection effectiveness is maintained, but the overall weight and size of the tool system increases

Engineering Contradiction:
Improvedust collection effectivenessVSAvoidtool system weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent combines the dust collection system with the power tool by integrating the dust container into the tool housing and sharing the motor between the drive assembly and the dust extractor fan, creating a unified tool system that reduces overall weight while maintaining dust collection effectiveness

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The motor serves dual functions by powering both the drive assembly that operates the tool accessory and the dust extractor fan that collects dust, eliminating the need for a separate motor and reducing the overall weight of the system

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

2Reliability

If a separate dust collection system is used with the power tool, then dust collection functionality is provided, but the device complexity and number of parts increases

Engineering Contradiction:
Improvedust collection functionalityVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The dust container is integrated into the tool housing structure, and the motor is shared between the drive assembly and dust extractor, reducing the number of separate parts and simplifying the overall device complexity while maintaining dust collection functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single motor performs multiple functions by driving both the tool accessory through the drive assembly and the dust extractor fan, eliminating the need for duplicate components and reducing device complexity

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

3Stability of the object's composition

If a rigid suction pipe is used in the dust collection assembly, then structural stability is maintained, but maneuverability and ease of operation decreases

Engineering Contradiction:
Improvesuction pipe structural stabilityVSAvoidtool maneuverability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The suction pipe is designed to be flexible rather than rigid, allowing it to bend and adapt to different working positions and angles, which enhances tool maneuverability and ease of operation while maintaining sufficient structural stability through appropriate material selection and structural design

Inventive Principle:
Principle #15Dynamics

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

This integration reduces the number of parts, weight, and size of the tool system, making it more compact and easier to handle while maintaining effective dust collection.

Implementation Method 1

a suction fan positioned within the housing and operable to generate an air flow path through the suction pipe and into the dust container

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

a motor positioned within the housing and operatively coupled to the drive assembly to drive the drive assembly

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS11872665B2Integrated dust extractor and power tool
Publication Date: 2024.01.16 MILWAUKEE ELECTRIC TOOL CORP
  • US11872665B2 patent drawing
  • US11872665B2 patent drawing
  • US11872665B2 patent drawing

AI summary

A handheld power tool including a housing, a tool receptacle disposed on a first end of the housing and configured to receive a tool accessory, and a motor positioned within the housing and operatively coupled to the tool receptacle to drive the tool accessory. A dust container is selectively coupled to the housing. A dust tube is coupled to the first end of the housing and in fluid communication with the dust container, wherein the dust tube is movable between an extended position and a retracted position. A fan is positioned within the housing and is operable to generate a suction air flow path through the dust tube and into the dust container, wherein the fan rotatably driven by the motor.