Coping Tool Dust Shroud Pivot for Precise Angle Cuts

Solution Overview

Problem

Existing coping tools face challenges in efficiently making precise cuts at various angles and in accommodating different workpiece sizes due to limitations in tool maneuverability and dust management, leading to user fatigue and inconsistent results.

Innovation Solution

A power tool with a brushless direct current motor and adjustable dust shroud, coupled with a pivot mechanism and airflow system, allows for precise control and efficient dust management, enabling consistent cuts across different angles and workpiece sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional coping tool is used, then the tool can make basic cuts, but the tool lacks maneuverability for precise control at various angles

Engineering Contradiction:

ImprovemaneuverabilityVSAvoidcut precision

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The dust shroud is made pivotable relative to the motor housing, allowing the operator to dynamically adjust the shroud's position to accommodate different workpiece sizes and cutting angles. This dynamic adjustment mechanism enables precise control during coping operations while maintaining effective dust collection.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If a fixed dust shroud is used, then the structure is simple, but the tool cannot accommodate different workpiece sizes

Engineering Contradiction:

Improveworkpiece size accommodationVSAvoidshroud mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The dust shroud is made pivotable relative to the motor housing, allowing the operator to dynamically adjust the shroud's position to accommodate different workpiece sizes and cutting angles. This dynamic adjustment mechanism enables precise control during coping operations while maintaining effective dust collection.

Inventive Principle:

Principle #15Dynamics

3Productivity

If high-speed cutting is performed, then productivity increases, but dust generation increases and becomes harder to manage

Engineering Contradiction:

Improvecutting speedVSAvoiddust generation

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The pivotable dust shroud works in conjunction with the motor housing to create an effective dust containment system that captures and directs dust generated during high-speed cutting operations. The airflow system channels dust through the shroud to a collection point, converting the harmful dust byproduct into a manageable flow that can be collected efficiently.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

4Object-generated harmful factors

If the dust shroud is positioned for optimal dust collection, then dust management is efficient, but the cut zone access is limited

Engineering Contradiction:

Improvedust management efficiencyVSAvoidworkpiece access

Core Design Contradiction:

Object-generated harmful factorsVSEase of operation

Solution Approach 1:

The dust shroud is made pivotable relative to the motor housing, allowing the operator to dynamically adjust the shroud's position to accommodate different workpiece sizes and cutting angles. This dynamic adjustment mechanism enables precise control during coping operations while maintaining effective dust collection.

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

The solution enhances user control and reduces fatigue by allowing precise maneuverability and efficient dust management, resulting in more consistent and accurate coping cuts.

Implementation Method 1

a fan disposed within the main housing and configured to induce an airflow

Methodology Applied

Scientific EffectAirflow: Convection

Data Source

PatentUS20230390837A1Coping system

Publication Date: 2023.12.07 MILWAUKEE ELECTRIC TOOL CORP

AI summary

A power tool used to perform a coping cut including a main housing, a motor disposed within the main housing, a drive shaft driven by the motor about a rotational axis, a handle extending from the main housing, and an abrasive disc coupled to and driven by the drive shaft about the rotational axis. The motor is an outer rotor brushless direct current motor capable of rotating at 4,000 surface feet per minute at 1.5 inch-pounds of torque.