Project One: Tooth Brush Redesign

PROJECT ONE: TOOTH BRUSH REDESIGN

Team ThunderCatsKevin WestThomas DinhTyler AndersonEvan Armstrong

26 February 2012

Initial Problem Statement: To design a toothbrush that will meet the sustainability needs of rapidly energy consuming population while remaining effective in quality, cost, and maintenance.

Sequence of Project• Initial Assessment

• Customer Needs Gathering• Customer Needs Assessment (Hierarchal Needs List,

AHP)• External Search/Product Analysis

• Literary Review, Patent Search, Benchmarking• Product Dissection

• Concept Generation• Individual Design Creation• Product Design Finalized (Morph and Pugh Chart)

• Project Finalized• CAD Drawing• Progress Report

Project Management• Kevin

• Needs Assessment• Patent Search• Presentation

• Evan• Literary Review• Pictures

• Thomas• Needs Assessment• Patent Search• Progress Report• CAD Drawing

• Tyler

• Dissection• CAD Drawing• Benchmarking

• Communal• Brainstorming• Concept Generation• Product Finalisation

Hierarchal Needs Chart1. Durability

1. Rechargeable2. Sustainable3. Battery Life

 2. Effectiveness

1. Bristle Rotation2. Easy to Use3. Price

 3. Design

1. Bristle Design2. Color Scheme3. Portability

 4. Noise

 5. Speed

  Durable Effective Noise Speed Design Total WeightDurable X 3 8 9 5 25 0.468Effective 1/3 X 6 7 3 16.33

30.306

Noise 1/8 1/6 X 2 1/3 2.625 0.049Speed 1/9 1/7 1/2 X 1/5 0.954 0.018Design 1/5 1/3 3 5 X 8.533 0.16

Revised Problem Statement: To redesign a current existing toothbrush to meet the desired durability, sustainability, efficiency, design, and cost expectations of consumers.

External SearchBenchmark

External SearchLiterary Review• Affordable

• Well-planned• High Availability• Liked by consumers

• Design• Effectiveness

• Popular and Successful

External SearchPatent

Function Power Efficiency Battery Durability Replacement

Switch 5666688        

Crossing Bristles

  6564416 B1      

Tongue Cleaner

  D609013 S      

Clip-Off       D563106 S  

Concept GenerationBody Designs

Flat Bottom Green Material

Conical Rubber Casing

Concept GenerationBrushhead

Design

High Bristle Density

Long Bristles

Rubber Bristles

Concept GenerationEnergy

Mechanism

Corkscrew Motor

Double Helix Motor

Concept GenerationPower

Generation

Shakeable Battery

Battery in Pack/2nd Pack

Battery Series

Morphological ChartHuman Body Designs Energy Mechanism Power Generation Design Head       

Flat Bottom  Corkscrew Motor Shakeable Battery High Density Bristles     

        Conical bottom  Double Helix  Secondary Battery Pack  Long Bristles

      Green Material  Series Circuit  Rubber Bristles

  Durable/Rubber casing

Concept SelectionCriteria In Deciding Finalized Concepts• Environmental• Effective• Durable• Well-designed

Concept Selection

Concept Selection

Concept SelectionFinal Selected Components• High Density Bristles• Environmentally Safe Material• Flat back and bottom• Shake-Recharge Battery• Double-helix style rotor• LED Battery indicator• On/Off Sub-surface Button

Concept Design

Function and Technology• Toothbrush works in traditional circuit• Motor

• Double Helix Groove• Moves rod connected to bottom brush up and down• Rotates rod as well to top brush to spin

• Battery• Mechanical-Power (Faraday Flashlight or linear induction)• Energy can be provided using coil-magnet system• Still recharged by traditional outlet cord