Power Tool Support Stand with Enclosed Roller Track

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Solution Overview

Problem

Existing support stands for power tools and workpieces have exposed track areas that are susceptible to sawdust and material interference, leading to rough tool movement and maintenance issues.

Innovation Solution

A support stand design featuring an elongated track with covered roller surfaces, where the tool mount and workpiece supports roll on enclosed channels, preventing debris accumulation and ensuring smooth movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the track and tool mount use an exposed sliding or rolling interface, then the structure is simple and easy to manufacture, but sawdust and material debris accumulate on the track surface, interfering with smooth movement

Engineering Contradiction:

Improvesimplicity of track and tool mount structureVSAvoidsmooth movement of tool mount along track

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent employs a C-shaped channel member that acts as a protective shell enclosing the roller support surface. This channel member spans across the rail and covers the roller, preventing sawdust and debris from contacting the rolling interface while maintaining structural integrity and enabling smooth tool mount movement.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The invention transitions from a two-dimensional exposed track surface to a three-dimensional enclosed channel structure. The C-shaped channel member adds a vertical dimension by spanning across the rail and covering the roller, creating a protected environment that prevents debris accumulation while maintaining the rolling interface functionality.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of repair

If the track area is exposed, then debris can be easily removed for maintenance, but sawdust and material buildup interferes with tool movement during operation

Engineering Contradiction:

Improveaccessibility of track for cleaning and maintenanceVSAvoidsawdust and material interference on track

Core Design Contradiction:

Ease of repairVSObject-affected harmful factors

Solution Approach 1:

The C-shaped channel member serves as a protective barrier that prevents sawdust and material from reaching the roller support surface during operation, eliminating the harmful effects of debris accumulation while maintaining structural accessibility for maintenance when needed.

Inventive Principle:

Principle #30Flexible shells and thin films

3Device complexity

If rollers are positioned below the tool support, then the tool mount structure is simplified, but the roller support surfaces remain exposed to debris

Engineering Contradiction:

Improvestructure of movable tool mountVSAvoidexposure of roller support surfaces to sawdust

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The C-shaped channel member encloses the roller support surface while maintaining the simplified tool mount structure with rollers positioned below the tool support. The channel acts as a protective barrier without adding significant structural complexity to the movable tool mount.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The channel member adds vertical coverage by spanning across the rail, moving from a flat track surface to a three-dimensional enclosed structure that protects the roller support surface while maintaining the simple below-support roller positioning.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 covered roller surfaces maintain a clean and smooth operation by preventing sawdust and material buildup, enhancing the reliability and efficiency of tool and workpiece movement along the track.

Implementation Method 1

rollers positioned below the tool support and carrying the movable tool mount on the track for rolling displacement of the movable tool mount therealong

Methodology Applied

Scientific EffectRolling: Roller

Implementation Method 2

a cover arrangement positioned above said at least one roller in a position spanning fully across each said support surface over the length thereof

Methodology Applied

Scientific EffectPhysical containment: Physical Containment

Data Source

PatentUS8931529B2Support stands for movable support of power tools

Publication Date: 2015.01.13 FREGEAU KEIVN JOHN

AI summary

A support stand for movable support of a power tool features the use of rollers to support a tool mount along an elongated track. The track features a cover arrangement disposed over the surfaces on which the rollers move so as to avoid sawdust or other debris from building up on the track and interfering with smooth rolling motion of the tool mount. The stand is assembled in a working position by attaching two stand sections end to end to form the track, and is also configured for arrangement into a collapsed condition in which the stand sections stack one atop the other for space efficient storage and convenient transport.