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Expandable Wheelchair Final Report - PowerPoint PPT Presentation


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Expandable Wheelchair Final Report. Sponsor: Industry Advisor: Facility Advisor: Team:. Keen Mobility Rick Klein Faryar Etesami Meagan Pischel Robb Sparks Joshua Hatch Aleksey Synkov. Spring, 2005. Mission Statement.

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Presentation Transcript
slide1

Expandable WheelchairFinal Report

Sponsor:

Industry Advisor:

Facility Advisor:

Team:

Keen Mobility

Rick Klein

Faryar Etesami

Meagan Pischel

Robb Sparks

Joshua Hatch

Aleksey Synkov

Spring, 2005

PSU / Keen Mobility

mission statement
Mission Statement

Develop a low-cost manual wheelchair with adjustable width and depth for skilled care facilities.

PSU / Keen Mobility

need for expandable wheelchair
Need for Expandable Wheelchair
  • Reduce size of chair fleet in nursing homes
  • Reduce wide (20”) chair rentals
  • Free up Medicare money for other patient needs
  • Provide a better fitting chair to patients

PSU / Keen Mobility

main design objectives
Main Design Objectives

Adjust width 16” to 20”

Increase chair capacity to 300 lbs

Allow quick, tool free adjustment

Adjust depth 16” to 18”

PSU / Keen Mobility

additional requirements
Additional Requirements
  • Allow use of normal doorways
  • Ability to fold instantly
  • Standard service life
  • Easy maintenance
  • Manageable chair weight
  • Safety
  • Reliability

PSU / Keen Mobility

final design
Final Design

Standard Adult Wheelchair

Folded

pinned

attached

Crossbar design allows wheelchair to fold

PSU / Keen Mobility

final design7
Final Design

Double

Crossbar

for added

weight

capacity

Width

Adjust

PSU / Keen Mobility

final design8
Final Design

Handle Re-designed for Depth Adjustment

Sliding

Fixed

Original Design

Re-design

PSU / Keen Mobility

analysis
Analysis

Finite Element Analysis (FEA) for Handle

F

PSU / Keen Mobility

analysis10
Analysis

FEA Result

Yield Strength = 57 kpsi

max. stress = 30 kpsi

FOS = 1.9

Safe for designed load

max

PSU / Keen Mobility

testing
Testing
  • Broken into quantitative and qualitative characteristics
  • Width and depth adjustability meet project requirements
  • Width adjusts in less than 3 minutes, depth in less than 1 minute
  • Chair still folds easily

PSU / Keen Mobility

patenting
Patenting
  • Grant funds available for patenting
  • Draft patent application sent to lawyer

PSU / Keen Mobility

conclusions and recommendations
Conclusions and Recommendations
  • The wheelchair meets all main design objectives and the majority of other PDS requirements
  • Only aesthetics need serious help
  • Some areas for refinement were identified

PSU / Keen Mobility

special thanks
Special Thanks
  • Rick, Jerry, Brandon and entire Keen Mobility Team
  • Professor Etesami
  • Vancouver Skilled Care Facility nurses and staff

PSU / Keen Mobility