Articulating Power Tool Locking Mechanism for 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 power tool with a tool holder that can be adjusted through a range of positions, including less than zero to ninety degrees, using articulating arms and a locking mechanism to secure the tool head at desired orientations, allowing for improved access and versatility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

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

Engineering Contradiction:
Improveaccess capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tool head is made dynamically adjustable through articulating arms with pivot joints, allowing the tool head to be positioned at various angles (including less than zero to ninety degrees) relative to the tool body. This dynamic configuration enables access to difficult-to-reach areas while maintaining structural simplicity through the use of straightforward mechanical articulation mechanisms.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

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

Engineering Contradiction:
Improvetask rangeVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The articulating mechanism with multiple pivot joints enables the tool head to assume various orientations, expanding the range of tasks that can be performed with accessory tools while keeping the overall structure relatively simple through modular design.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tool is divided into separable components including the tool body, articulating arms, and tool head, allowing independent adjustment and positioning of each segment to suit different task requirements without increasing overall structural complexity.

Inventive Principle:
Principle #1Segmentation

3Productivity

If the tool head position is fixed, then the structure is simple and reliable, but the user must use alternative tools or non-powered tools which increases time consumption

Engineering Contradiction:
Improvetask completion timeVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The dynamically adjustable tool head position eliminates the need to switch between multiple tools or use non-powered alternatives, allowing users to complete diverse tasks more efficiently with a single articulated power tool while maintaining structural simplicity.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If the tool head is fixed, then the structure is simple, but the orientation of accessory tools is limited making certain operations difficult

Engineering Contradiction:
Improveoperation precisionVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The articulating mechanism with pivot joints enables precise adjustment of accessory tool orientation, improving ease of operation for tasks such as flush cutting while maintaining structural simplicity through straightforward mechanical linkages.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3043968B1Locking mechanism for an articulating oscillating power tool
Publication Date: 2018.07.25 ROBERT BOSCH GMBH
  • EP3043968B1 patent drawingFigure 1
  • EP3043968B1 patent drawingFigure 2
  • EP3043968B1 patent drawingFigure 3

AI summary

An oscillating power tool includes a tool mount which can be articulated through a range of positions including less than zero degrees to ninety degrees. The tool mount can accept a variety of accessory tools which move in a reversing angular displacement as well as articulate throughout the range of positions. A locking mechanism is provided that can be manually actuated to prevent articulation or rotation of the articulator to thereby fix the tool mount to a pre-selected orientation.