Rolling Mechanic Chair With Large Casters and Adjustable Seat

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Solution Overview

Problem

Conventional rolling chairs and tool bins are limited in their ability to facilitate efficient vertical seat movement and navigation over debris, hindering workers' mobility and efficiency when working on vehicles or in environments with obstacles.

Innovation Solution

A rolling chair with a rigid frame and large caster wheels, incorporating a gas-powered cylinder for adjustable seat height and a rotary tool tray, designed to navigate debris and obstacles with enhanced stability and mobility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If small caster wheels (e.g., 2 inch wheels) are used, then the device structure is compact, but the device is impeded when used in areas with debris such as nuts, bolts, and small pieces of metal

Engineering Contradiction:
Improvedevice compactnessVSAvoidmobility over debris
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent changes the critical parameter of wheel size from small (2 inch) to large (6 inch or greater) to resolve the contradiction. This parameter change allows the device to navigate over debris effectively while the overall device design maintains operational compactness through the modular frame structure

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If fixed seat stools are used, then the device structure is simple, but the user cannot move upwardly or downwardly easily and quickly

Engineering Contradiction:
Improvedevice structure simplicityVSAvoidseat adjustability
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent transforms the static fixed seat into a dynamic adjustable seat system. The seat height can be adjusted vertically along the frame structure, allowing users to quickly move upwardly or downwardly to accommodate different working conditions while maintaining relative structural simplicity through guided movement paths

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If large caster wheels (e.g., 6 inch wheels) are used, then the device can navigate debris easily, but the device weight increases

Engineering Contradiction:
Improvemobility over debrisVSAvoiddevice weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The patent employs composite construction methods in the frame structure to offset the weight increase from large caster wheels. The frame utilizes hollow members and optimized material distribution to reduce overall structure weight, balancing the added wheel weight while maintaining structural integrity and mobility

Inventive Principle:
Principle #40Composite materials

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 provides a more efficient and adaptable rolling chair and tool bin system that allows for easy movement over debris, adjustable seating, and convenient tool storage, enhancing user mobility and efficiency in various work environments.

Implementation Method 1

incorporating a gas-powered cylinder for adjustable seat height

Methodology Applied
Scientific EffectGas-powered cylinder: Gas Compressor

Implementation Method 2

large caster wheels, designed to navigate debris and obstacles with enhanced stability and mobility

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS8973926B1Rolling chair and tool bin
Publication Date: 2015.03.10 TRAXION INC
  • US8973926B1 patent drawing
  • US8973926B1 patent drawing
  • US8973926B1 patent drawing

AI summary

The invention includes a rolling chair for mechanics and the like to use on a floor to move around a work area. The rolling chair has a rigid frame with legs extending outwardly from a central riser housing an adjustable cylinder supporting a padded seat. The frame supports a rotary platform with a large section and a smaller walled section for storing tools or parts. The rolling chair is suspended above the ground by castered wheels secured to a leg terminal end. The castered wheels rotate vertically and horizontally. The castered wheels may be large and the central riser may protrude above and below the frame. The platform has an outer perimeter above the vertical axes of the castered wheels.