TRAVEL ELECTRIC TOOTHBRUSH RESEARCH, DEVELOPMENT AND DESIGN Team 7: Rachel Dahlberg Tyler Gardner Peter Jackson John Nisbet

Outline OBJECTIVE: To redesign an Electric toothbrush (travel version) SEQUENCE OF DESIGN ACTIVITIES: Introduction (PETER) Project management (JOHN) Customer needs (RACHEL) External search (TYLER) Redesign concepts (JOHN) Final design( RACHEL & TYLER) Final remarks (PETER)

Project Management JohnPeterTylerRachel  Concept Design  Dissection & Analysis  Patent Research  Concept Design  Dissection & Analysis  Abstract (Background Concepts)  Concept Design  Dissection & Analysis  Benchmarking  Literature Review  Concept Design  Dissection & Analysis  Customer Needs  Literature Review  Final Product CAD Drawing

Customer Needs 1. Aesthetics (0.13) 1.1 Not vibrant, but not dull (0.065) 1.2 Simple colors (0.065) 2. Portable/Comfortable (0.24) 2.1 Lightweight/Compact (0.069) 2.2 No bulky base (0.14) 2.3 Possibly folding (0.034) 3. Efficient Brush (0.15) 3.1 Pulsing bristles vs. rotational vs. linear (0.050) 3.2 Bristle toughness ideal (0.022) 3.3 Interchangeable heads (0.020) 3.4 Easy to operate (0.036) 3.5 Flexible bristles (0.022) 4. Extras (0.10) 4.1 Flossing attachment (0.017) 4.2 Tongue scrubber (0.023) 4.3 Travel Case (0.040) 4.4 Automatic shut off/notification of 2 minutes (0.010) 4.5 Attachable toothpaste (0.010) 5. Power (0.21) 5.1 Powerful (0.057) 5.2 Runs on batteries (0.057) 5.3 Long battery life (0.057) 5.4 Multiple speed settings (0.016) 5.5 Battery life notification (0.023) 6. Cost Efficient (0.18) The team has decided that the portability and powering of the toothbrush are most important and thus will be primarily focused on. The team also decided that while some power features and extras are important, others would be too complex for a simple electric toothbrush.

Customer Needs Focused Criteria & Weights CriteriaWeights Portability0.24 Efficient Brush0.15 Extras0.10 Power0.21

External Search FUNCTION ART Bristles, Rotating Connector, Brush Neck Plastic Case, Motor, Actuator, Circuit Plastic CoverPlastic Shell, Metal Connector Plastic Cover, Rubber Grip Two AA Batteries BrushUS 2011/ Motor US Brush Cover US Battery Cover US B2 Body US B2 Battery US 2011/ Patent Search Starting Point; what works, what does not. Literature Banks- Best toothbrushes hit hard to reach areas.

External Search, cont. FeatureOral-B Advanced Power 400 Oral-B Cross Action Power Sonicare Xtreme PowerColgate Max White Sonic Power Medium 53 Portable/Comfortable2314 Aesthetics5355 Efficient Brush4343 Extras1111 Power3244 Cost Efficient5525 Benchmarking Colgate Max White Sonic Power Medium 53

Redesign Concepts Brush Heads

Redesign Concepts, cont. Body Design

Redesign Concepts, cont. Power Generation

Redesign Concepts, cont. Energy Mechanism

Morphological Chart FunctionsBrush HeadBody/GripPower Generation Energy Mechanism Means 1 Interchangeable Flossing Head Simple Hand Grip and Front Button 1AA Rotational Motion and Linear Motion with Locking Mechanism 2 Angled Brush Head with Tongue Scrubber Side Button and Power Lights 2AA Pulsing Motion to use with Tongue Scrubber and Flossing Head

Morphological Chart, cont. FunctionsBrush HeadBody/GripPower Generation Energy Mechanism Means 3 Rotating Brush Head Folding Handle Lithium Ion Rotational Motion 4 Rotating and Pulsing Brush Heads Batteries in Series Rechargeable Rotational & Linear Motion

Pugh Charts Brush Head

Pugh Charts Body/Grip

Pugh Charts Power Generation Lithium Ion

Pugh Charts Energy Mechanism

Final Design

Final Design, cont. Brush Head- linear movement bottom brush, rotational movement top brush, fixed linearly Scotch yoke- linear motion controls tongue scraper Cylindrical lithium ion battery- speed settings and power button. Not rechargeable in body, life expectancy is 6 months

Final Remarks Conclusion As engineers, we strive to make life better by constant innovation. Extent of Success We have collectively generated ideas, and managed to put them in the final develeopment of the concepts that led to the final design. Our electric toothbrush design has become a multifunctional equipment with the addiction of the unique features such as tongue scrapper, lithium ion battery, speed settings, etc.

Thanks