Work Support for Hand-Held Tools with Cutting Trough

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Solution Overview

Problem

Existing devices for handling hand-held cutting and drilling tools, such as angle grinders, lack effective solutions for ensuring occupational safety and precise, clean handling on-site, often resulting in environmental contamination from dust and chips.

Innovation Solution

A work surface with a cutting trough and adjustable lids that allows for safe positioning of materials, minimizes slipping, and integrates a suction system for dust collection, along with a swivel arm for enhanced support and adaptability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cutting stand is used to guide hand-held cutting tools, then occupational safety is improved, but the device becomes stationary and unsuitable for mobile on-site work

Engineering Contradiction:
Improveoccupational safetyVSAvoidmobile on-site work capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The work surface is designed with movable and adjustable components including a swivel arm that can rotate and extend to provide support at different positions. The entire work surface can be moved to different locations, combining the safety benefits of a guided cutting system with the mobility needed for on-site work.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If cutting is performed on-site without a dedicated work surface, then mobile processing is enabled, but environmental contamination from dust and chips increases

Engineering Contradiction:
Improvemobile on-site processingVSAvoiddust and chip contamination
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The cutting trough is designed as a separate, removable component that can be detached from the work surface. This allows the trough to be used independently for containing dust and chips during mobile cutting operations, while the work surface can be used separately for other support functions.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cutting trough acts as an intermediary structure between the cutting tool and the work surface, capturing dust and chips generated during cutting operations. The trough can be positioned to receive debris while allowing the cutting tool to operate above it.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If materials are placed directly on the work surface for cutting, then easy handling is achieved, but processing marks and damage can occur on the surface

Engineering Contradiction:
Improvematerial handling convenienceVSAvoidprocessing marks and surface damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The work surface is segmented into distinct functional zones including a cutting area with the trough, support areas with profile surfaces, and clear zones where materials should not be placed. This segmentation guides proper material positioning and prevents damage to the work surface while maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

4Ease of manufacture

If the work surface has a fixed design, then manufacturing simplicity is maintained, but adaptability to different materials and tools is reduced

Engineering Contradiction:
Improvework surface construction simplicityVSAvoidaccommodation of different materials and tools
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The work surface is designed with multiple functional elements that serve different purposes: profile surfaces for preventing slips, a cutting trough for dust collection, measurement marks for precision work, and a swivel arm for extended support. This multi-functional design allows a single work surface to accommodate various cutting tools, materials, and working conditions without requiring multiple specialized surfaces.

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

Data Source

PatentEP3730252B1Work support for a manually operable tool
Publication Date: 2022.03.02 KRONEN HANSA WERK
  • EP3730252B1 patent drawingFigure 1~2
  • EP3730252B1 patent drawingFigure 3~5
  • EP3730252B1 patent drawingFigure 6~7

AI summary

The invention relates to a work surface (1) for a hand-held work device, wherein a cutting recess (6) is arranged between a first support surface (4) and a second support surface (5) and covers (24, 25, 26, 27) are included.