Articulating Oscillating Power Tool Head Access

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Solution Overview

Problem

Existing oscillating power tools with fixed tool heads are limited in accessing difficult-to-reach areas, restricting their versatility and increasing user fatigue due to the need for alternative tools or non-powered tools for certain tasks.

Innovation Solution

An articulating handheld power tool with a motor-driven eccentric mechanism that allows the tool head to move through a range of positions, including zero to ninety degrees, enabling more flexible access and orientation for various tasks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the tool head is fixed with respect to the tool body, then the tool structure is simple and reliable, but the tool cannot access difficult-to-reach areas and user fatigue increases

Engineering Contradiction:
Improveability to access difficult-to-reach areasVSAvoidtool structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tool head is made dynamically adjustable through an articulating mechanism that allows it to pivot and tilt to various angles. The articulating arm with pivot joints enables the tool head to assume different orientations and positions, transforming a static fixed structure into a dynamic adaptable one that can reach difficult areas while maintaining operational control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tool is divided into separate articulated segments including the tool body, articulating arm, and tool head. These segmented components are connected through pivot joints, allowing independent movement of each segment. This segmentation enables the tool head to be positioned at various angles relative to the tool body, providing access to confined spaces without requiring the entire tool to be repositioned.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the tool head is fixed, then the tool structure is simple, but the range of tasks that can be performed is limited

Engineering Contradiction:
Improverange of tasksVSAvoidtool structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The articulating mechanism provides multi-functionality by enabling the tool head to achieve various orientations and positions. This allows a single tool to perform multiple tasks that would otherwise require different tools or attachments, as the tool head can be articulated to access different angles and configurations suitable for various operational requirements.

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

Solution Approach 2:

The dynamic articulating mechanism allows the tool head to be positioned at different angles and orientations during operation. This dynamic adjustability enables the tool to adapt to different task requirements, such as working at various angles or accessing tight spaces, thereby expanding the range of tasks that can be performed with a single tool design.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the tool head position is fixed by the nature of the workpiece, then the tool is stable, but the user must resort to alternative tools or non-powered tools

Engineering Contradiction:
Improveuser convenienceVSAvoidtime to complete task
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The dynamic articulating mechanism allows the tool head to be quickly repositioned and reoriented to match the requirements of different workpiece configurations. This eliminates the need for users to switch between multiple fixed-position tools or use non-powered alternatives, as the articulating tool can adapt its position and orientation to maintain stability and effectiveness across various working conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The articulating tool serves as a universal solution that can handle diverse workpiece geometries and access requirements. By providing adjustable positioning and orientation capabilities, it replaces the need for multiple specialized fixed-position tools and manual tools, allowing users to complete tasks more efficiently with a single versatile tool.

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

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

Enhances the tool's ability to access hard-to-reach areas and improves task efficiency by allowing the tool head to be positioned more conveniently, reducing user fatigue and expanding the range of tasks that can be performed with the tool.

Implementation Method 1

a motor having a drive shaft with an eccentric configured to rotate about a first axis

Methodology Applied
Scientific EffectEccentric mechanism: Eccentric

Data Source

PatentEP2804727B1Articulating oscillating power tool
Publication Date: 2017.07.19 ROBERT BOSCH GMBH
  • EP2804727B1 patent drawingFigure 1
  • EP2804727B1 patent drawingFigure 2
  • EP2804727B1 patent drawingFigure 3

AI summary

An oscillating power tool (10) includes a tool head (14) which can be articulated through a range of positions including zero to ninety degrees. The tool head (14) can accept a variety of accessory tools (18) which move in a reversing angular displacement as well as articulate throughout the range of positions.